[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.1"]
[White "Ponkratov, Pavel"]
[Black "Biraj Baruah"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "2641"]
[BlackElo "1489"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,93,38,30,60,58,64,70,52,53,66,73,84,68,68,73,64,61,122,97,118,106,148,109,95,93,102,91,98,83,83,87,110,97,92,92,189,185,211,75,205,77,70,88,104,104,90,108,114,70,71,67,68,68,282,279,528,547,539,525,552,542,503,488,1472,1487,924,938,4602,4602,4598,4594,4005,4005,750,743,29978,29979,29979,29980,29981,29982,29982,29983]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 exd5 6. Bg5 Be6 7. e4 dxe4 {[#] D32: Tarrasch Defence: Sidelines and lines without g3.} 8. Nxe4 Be7 (8... Nbd7 9. Bxf6) 9. Nxc5 {White is more active.} Bxc5 {White is slightly better.} 10. dxc5 Qa5+ 11. Qd2 $1 {[#]} Qxd2+ $146 ({Predecessor:} 11... Qxc5 12. Bxf6 gxf6 13. Be2 Nc6 14. O-O O-O 15. Rac1 Qf5 16. Bd3 Qh5 17. Qf4 Rfd8 {½-½ (48) Haba,Z (2236)-Vavrinec,T (2018) Ricany 2012}) 12. Bxd2 Nbd7 13. Bb5 O-O 14. b4 Ne4 (14... a6 $14 15. Bxd7 Bxd7) 15. O-O Nxd2 16. Nxd2 Rfd8 ({Black should try} 16... a5) 17. Nf3 a5 18. a3 Nf6 {[%cal Bd7f6,Bf6e4,Be4f2][%mdl 32]} 19. Rab1 Ne4 {Strongly threatening ...Nc3.} 20. Rfc1 {Prevents Nc3. Black must now prevent c6.} axb4 21. axb4 Ra2 22. c6 bxc6 23. Bxc6 Nxf2 {[#]} (23... Nd2 $16) 24. b5 $1 $18 Bf5 25. Rb3 (25. Ra1 $18 Rb2 26. Nh4) 25... Ne4 (25... Be6 $16 {is a better defense.} 26. Rb4 Rb8) 26. Re1 $40 {[%mdl 128] Black is in trouble.} (26. b6 $18 Rc2 27. Rbb1 Rxc1+ 28. Rxc1) 26... Nc5 $16 27. Rc3 Ne6 28. b6 {aiming for b7.} Rb2 29. b7 {Ra3 is the strong threat.} g6 30. Ra1 (30. Ne5 $16) 30... Kg7 $14 (30... Nf4 $2 31. Ra8 Rb1+ 32. Kf2 Rb2+ 33. Kf1 Rb1+ 34. Ne1 $18) 31. h3 Nf4 {Hoping for ...Ne2+.} 32. Rc4 Nxg2 {Black is on the road to losing.} (32... Rxg2+ $2 33. Kh1 $18) (32... Rd6 $14) 33. Rd4 $18 Rxd4 (33... Bd7 34. Bxd7 Rxb7) 34. Nxd4 Nf4 35. Nxf5+ gxf5 {[%mdl 4096] Endgame KRB-KRN} 36. Ra8 Nxh3+ 37. Kf1 f4 (37... Nf4 $142 38. b8=Q Rxb8) 38. b8=Q Rxb8 39. Rxb8 h5 40. Rb5 Kh6 41. Rf5 Kg6 42. Be4 Ng5 43. Rxf4+ Nxe4 44. Rxe4 {White mates.} Kg5 45. Kg2 f5 46. Ra4 h4 47. Kh3 {Weighted Error Value: White=0.15 (very precise) /Black=0.46} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.2"]
[White "Sherla Prathamesh"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1484"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,0,0,-7,0,-5,-12,-27,-32,-35,-27,-55,-64,-64,-60,-98,-68,-83,-74,-92,-92,-112,-45,-44,-4,-47,-19,-56,-8,-3,-8,-87,-93,-112,-107,-125,-115,-124,-86,-87,-75,-74,-21,-32,-27,-218,-214,-215,-202,-204,-179,-491,-510,-993,-984,-962,-962,-962,-912,-29997,-29998,-29998,-29999,-29999]} 1. c4 b6 2. g3 Bb7 3. Nf3 e5 4. d3 Bb4+ 5. Bd2 Bxf3 6. exf3 {A10: English Opening: Unusual Replies for Black.} Bxd2+ {[#]} 7. Nxd2 $146 ({Reject} 7. Kxd2 Qg5+ 8. Kc2 Nc6 $15) ({Predecessor:} 7. Qxd2 Qf6 8. Bg2 Nc6 9. Nc3 Nge7 10. O-O O-O 11. Ne2 Ng6 12. Rfd1 Rad8 13. Rac1 {0-1 (53) Hundack,R (2223)-Graf,F (2476) Verden/Aller 2014}) 7... Nc6 8. Nb3 {The position is equal.} Qf6 9. Bg2 {[%cal Od3d4]} Nge7 10. Qe2 O-O 11. O-O a5 12. a4 Qd6 13. Bh3 f5 14. Rfd1 Rae8 15. Qd2 f4 (15... Nd4 $1 $17 {[%cal Rd4f3]} 16. Nxd4 Qxd4) 16. d4 $15 Rd8 17. Qc3 (17. c5 $11 Qd5 18. Qc3) 17... Qh6 18. Bg2 d6 (18... exd4 $15 {should be considered.} 19. Nxd4 Nxd4 20. Qxd4 Nc6 21. Qd5+ Qe6) 19. dxe5 $1 $11 Nxe5 20. Nd4 (20. c5 $1 $11 {keeps the balance.}) 20... Qf6 $17 21. Rf1 c5 22. Ne2 g5 23. Rad1 Kh8 24. Qc1 N7c6 $36 {[%mdl 2048] Black is in control. Black is more active.} 25. b3 g4 (25... Qg7 $17) 26. Nxf4 $11 gxf3 {Threatens to win with ...Nd4.} 27. Bh3 $2 {White does not recover from this.} (27. Bh1 $1 $11 {and White has nothing to worry.}) 27... Qh6 $1 $19 ({And not} 27... Nd4 28. Rxd4 $1 cxd4 29. Ne6 $11) 28. Kh1 Nd4 {Strongly threatening ...Ne2. Pair of Knights!} ({Less strong is} 28... Rxf4 {[#]} 29. Bf5 $1 $11 {[%mdl 512]}) 29. Rg1 Rf6 {aiming for ...Ne2.} 30. Rxd4 (30. Nd5 {is more resistant.} Qxc1 31. Rxc1) 30... cxd4 31. Nd5 {[#]} (31. Qf1 $142 Rg8 32. Qc1) 31... Qxh3 $1 32. Nxf6 Rf8 {[%cal Bd8f8,Bf8f6,Bf6h6][%mdl 32]} 33. Qg5 Nd3 {[%cal Rd3f2]} 34. Qd2 Rxf6 {Black mates.} 35. Qxd3 {[#]} Qxh2+ $1 {[%mdl 512]} 36. Kxh2 Rh6# {Weighted Error Value: White=0.70/Black=0.09 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.3"]
[White "Mosadeghpour, Masoud"]
[Black "Vijay Chauhan"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "2511"]
[BlackElo "1451"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,43,22,9,58,53,60,54,55,67,100,80,118,74,80,67,74,70,68,63,74,70,59,65,72,75,77,75,309,202,511,500,504,510,483,363]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3 e5 {Recently 6...Nf6 got a lot of attention. B18: Classical Caro-Kann: 4...Bf5 sidelines.} (6... Nd7 $11 {might be stronger.}) 7. dxe5 $14 {Black must now prevent Qxd8+.} Qa5+ 8. c3 {[%cal Oe5e6] Hoping for e6!} Qxe5+ {White is slightly better.} 9. Be2 Nd7 10. O-O Ngf6 11. Re1 {[#]} ({Better is} 11. Bf4 Qc5 12. Qb3) 11... O-O-O $146 ({Predecessor:} 11... Be7 12. Bf3 Qa5 13. Bf4 Kd8 14. b4 Qb6 15. Qd2 Re8 16. Rad1 Bf8 17. Rxe8+ Kxe8 {1-0 (24) Paoli,E-Reilly,B Amsterdam 1954}) 12. Qa4 $40 {[%mdl 128] Black needs to defend precisely.} Qb8 13. Bf4 Nb6 {[#]} 14. Qd1 Bd6 15. Bg4+ Nxg4 16. Qxg4+ Nd7 17. Rad1 h5 18. Qg5 {White is much more active. Black has bad knights.} Nf6 $2 {This costs Black the game.} (18... Bxf4 $16 19. Nxf4 Bc2) 19. Nf5 Ne8 {[#]} (19... Bxf4 {is tougher.} 20. Ne7+ (20. Nxf4 Rxd1 21. Rxd1 Bxf5 $16) (20. Qxf4 $2 Qxf4 21. Ne7+ Kc7 $19) 20... Kc7 21. Nxf4 (21. Qxf4+ Kb6 $18) 21... Rxd1 22. Rxd1 Rd8 23. Qa5+ b6 24. Rxd8 Kxd8 25. Nxc6+ (25. Nfxg6 $2 bxa5 26. Nxc6+ Kc7 $19) 25... Ke8) 20. Qxd8+ $3 $18 {[%mdl 512] White is clearly winning.} Kxd8 21. Nxd6 Nxd6 22. Rxd6+ {Weighted Error Value: White=0.12 (very precise) /Black=0.71} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.4"]
[White "Rajashekara N"]
[Black "Fawzy, Adham"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1443"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,-45,-52,-62,-58,-62,-44,-38,-37,-38,-36,-95,-95,-95,-93,-91,-97,-84,-65,-77,-76,-132,-124,-177,-177,-191,-175,-259,-176,-272,-272,-271,-262,-252,-235,-262,-256,-249,-221,-218,-213,-217,-204,-216,-197,-228,-214,-212,-212,-199,-170,-180,-173,-307,-307,-310,-302,-303,-300,-297,-283,-343,-339,-325,-294,-493,-483,-484,-465,-535,-540,-531,-529,-549,-500,-570,-561,-608]} 1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Bb5 Nge7 5. a4 a6 6. Bc4 {B23: Closed Sicilian: Lines without g3.} d5 7. Ba2 {[#]} d4 $146 ({Predecessor:} 7... g6 8. d3 Bg7 9. Bd2 O-O 10. Nf3 b6 11. O-O Bb7 12. e5 Qc7 13. Ne2 b5 {0-1 (20) Guerrero,J-Diaz,T Peru 1999}) 8. Nce2 {Black is slightly better.} d3 9. cxd3 Nb4 10. Bb1 (10. d4 $15) 10... Nxd3+ $17 11. Bxd3 Qxd3 12. Ng3 Nc6 $36 {[%mdl 2048] [#] aiming for ...Nb4. Black has strong initiative.} 13. Ra3 Qd8 {Black is much more active. White has bad knights.} 14. Nf3 {Inhibits e5.} c4 15. Re3 (15. Rc3 $142) 15... Bc5 16. d4 (16. Rc3 $17) 16... Nxd4 $19 17. Nxd4 Qxd4 18. Re2 (18. Qxd4 {was worth a try.} Bxd4 19. Re2) 18... Qxd1+ 19. Kxd1 Bd7 20. a5 Ba4+ 21. Ke1 O-O-O {[%csl Ga4][%cal Rd8d1] [#]} 22. Bd2 c3 23. bxc3 Bb5 {This bishop pair is nice.} 24. Be3 Bxe2 25. Bxc5 Bd3 26. Kf2 f6 27. Bd4 Rhf8 28. Ke3 Bc4 {[%cal Oe6e5]} 29. e5 fxe5 30. fxe5 Bd5 31. Ne4 (31. Rg1 $142) 31... Bxe4 32. Kxe4 {[%mdl 4096] Endgame KRR-KRB} Rd5 33. Ra1 Rb5 34. Ra2 Rb1 35. Bb6 Re1+ 36. Be3 g5 {[%cal Bg7g5,Bg5g4][%mdl 32]} 37. g3 $2 (37. Kd3) 37... g4 {Strongly threatening ...Rf3. Black is clearly winning.} 38. Kd4 Rf3 39. Bf4 Rd1+ 40. Kc4 Rdd3 41. Rc2 Rd5 42. Ra2 Kc7 43. Kb4 {Weighted Error Value: White=0.27 (precise) /Black=0.06 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.5"]
[White "Mirzoev, Azer"]
[Black "Kirison Engti"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2468"]
[BlackElo "1435"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,101,66,70,74,69,62,73,63,53,52,54,52,50,60,43,68,56,95,95,95,85,90,80,97,85,95,106,111,114,181,180,256,257,299,293,305,306,288,262,316,327,322,297,340,308,310,289,332,343,353,360,467,455,497,478,458,333,406,400,481,414,394,366,506,497,688,682,684,668,772,726,734,607,706,693,1081,671,648,635,1317,1283,1250,1190,29983,29984,29987,29988,29987,29988,29988,29989,12846,1811]} 1. c4 Nf6 2. Nc3 e6 3. Nf3 Be7 4. e4 d6 5. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} O-O 6. Bd3 Nc6 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4).} 7. O-O e5 8. d5 Nb4 {White is better.} 9. Bb1 {[#]} Bg4 $146 ({Predecessor:} 9... a5 10. a3 Na6 11. h3 Bd7 12. Be3 c5 13. Nd2 Nc7 14. Bd3 Nfe8 15. f4 f6 {0-1 (57) Didinger,E (1891)-Preiss,W (1797) Nordrheinwestfalen 2019}) 10. a3 Na6 11. h3 Bh5 12. Re1 Qc8 13. Be3 c5 14. Bd3 Nc7 15. b4 {White is more active.} b6 16. Rb1 Na6 17. Bd2 h6 18. Qe2 Kh8 19. Nd1 {[%cal Bc3d1,Bd1e3,Be3f5][%mdl 32]} g5 (19... Nh7 $16 {was necessary.}) 20. Ne3 $18 Qd7 (20... Rg8 $142 21. Nf5 Qf8) 21. Nf5 Kh7 22. Qe3 {[%cal Of3g5] [#] Black must now prevent Nxg5+!} Bxf3 23. Qxf3 ({Not} 23. gxf3 Nh5 $16) 23... Rg8 24. g3 Bf8 25. Kg2 Rg6 26. Qd1 Bg7 27. Bc2 {[%cal Bd3c2,Bc2a4,Ba4b5][%mdl 32]} Rh8 28. Ba4 Qd8 29. Bb5 Nc7 30. Bc6 Bf8 31. bxc5 dxc5 32. Bc3 Bd6 33. a4 Nce8 34. a5 Nd7 35. axb6 Nxb6 36. Ra1 {[%cal Bb1a1,Ba1a7,Ba7d7][%mdl 32]} Qc7 37. Qe2 Ng7 38. Nxd6 Qxd6 39. Rxa7 Rf8 40. Rb1 Nc8 41. Rd7 Qf6 42. Rb8 Kg8 43. Qf3 Qxf3+ 44. Kxf3 {[%cal Bg2f3,Bf3e4,Be4f5][%mdl 32]} f5 45. Bxe5 fxe4+ 46. Kxe4 {Threatens to win with d6.} Nf5 {[#] Inhibits d6.} 47. Rxc8 $1 Nxg3+ (47... Nd4 48. Rdd8) 48. fxg3 Rxc8 49. Kf5 Rgxc6 50. dxc6 Rxc6 51. Rc7 {Weighted Error Value: White=0.22 (precise) /Black=0.46} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.6"]
[White "Nilkamal Das"]
[Black "Tahbaz, Arash"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1430"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,62,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,23,16,41,-193,-157,-161,-156,-292,-290,-289,-279,-412,-429,-699,-690,-683,-681,-673,-683,-1211,-1198,-1156,-1188,-1180,-1147,-1427,-1119,-29986,-29987,-29991,-29992]} 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. c4 Nbd7 7. Nc3 e5 8. dxe5 dxe5 9. Qc2 Re8 10. e4 {E61: King's Indian: Early deviations for White, including Smyslov System.} c6 11. h3 Qe7 12. Be3 {The position is equal.} Nh5 {[%cal Bf6h5,Bh5f4,Bf4e6][%mdl 32]} 13. Rfd1 Nf4 14. Bf1 Qf6 {[%cal Of4h3]} 15. g3 Ne6 16. Bg2 {[#]} Bf8 $146 {[%cal Bg7f8,Bf8c5,Bc5b6][%mdl 32]} ({Predecessor:} 16... a5 17. Na4 c5 18. Nc3 Nd4 19. Nxd4 cxd4 20. Nd5 Qc6 21. Bd2 b6 22. b4 axb4 23. Bxb4 {1-0 (36) Ambarish,S (1880)-Saiful Islam,C (2159) Dhaka 2019}) 17. a3 Bc5 18. Nd5 $2 {Now White is beyond hope.} cxd5 $19 19. cxd5 Nd4 20. Nxd4 (20. Bxd4 $17 {only move.} exd4 21. e5) 20... exd4 ({Weaker is} 20... Bxd4 21. Bxd4 exd4 22. Rac1 $17) 21. Bf4 Bb6 22. b4 (22. Bc7 $142) 22... g5 23. e5 (23. Bc1 $142) 23... Nxe5 24. Bxe5 Rxe5 25. Rd3 Bf5 {[%cal Bc8f5,Bf5c2,Bc2d3][%mdl 32] [#] Hoping for ...Rc8.} 26. Rf3 Bxc2 27. Rxf6 d3 {[%cal Bd4d3,Bd3d2][%mdl 32] Threatens to win with ...d2.} 28. Bf3 Kg7 29. Rd6 d2 {[#] ( -> ...Re1+)} 30. Rf1 Re1 31. Rd7 Bd3 {Weighted Error Value: White=1.04/Black=0.02 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.7"]
[White "Rios, Cristhian Camilo"]
[Black "Hiranya Das"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2449"]
[BlackElo "1411"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,55,27,58,43,232,239,243,281,371,361,425,410,516,512,514,518,505,517,523,515,484,451,448,445,667,661,925,910,974,934,938,928,1080,1118,29984,29978,29990,29991,29991,29992,29994,29995,29995,29996]} 1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 {[%cal Be2e4,Be4e5][%mdl 32]} O-O 5. Nc3 d6 6. Bg5 Nbd7 7. Qd2 Re8 8. O-O-O {[%cal Oe4e5] [#] E81: King's Indian: Sämisch: 6th move deviations (including 6 Be3 c6).} b6 $146 {[#]} ({Better is} 8... c5 $14) ({Predecessor:} 8... Nb6 9. c5 dxc5 10. dxc5 Qxd2+ 11. Rxd2 Nbd7 12. Nb5 Rf8 13. Nxc7 Rb8 14. Be3 Ne5 15. Nd5 Nxd5 16. exd5 {1-0 (31) Benderac,A (2180)-Ljubicic,A (1544) Valjevo 2020}) 9. e5 $1 $18 Nh5 10. g4 {White is clearly better.} dxe5 11. dxe5 ({Less strong is} 11. gxh5 exd4 12. Nb5 c5 $16) 11... Bxe5 12. gxh5 f6 13. Qd5+ e6 14. Qxa8 fxg5 15. hxg6 Qf6 16. gxh7+ Kh8 17. Nge2 Nc5 18. f4 gxf4 (18... Bxc3 $142 19. Nxc3 Rf8) 19. Rg1 f3 20. Rg8+ Rxg8 21. hxg8=R+ Kxg8 22. Qxc8+ Kg7 23. Ng3 {[#] Nh5+ is the strong threat.} Bxc3 24. Nh5+ {White mates.} Kh6 25. Nxf6 Bxf6 26. b4 Na4 27. Qxe6 Kg5 28. Rd5+ {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.06 (flawless) /Black=1.02} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.8"]
[White "Arshiya Das"]
[Black "Nigmatov, Ortik"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1407"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "154"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,154,-25,-33,-64,-75,-91,-58,-129,0,4,62,70,109,102,104,112,106,111,109,95,134,106,186,133,131,119,125,106,131,102,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,109,110,109,114,47,59,52,52,52,53,65,69,73,110,110,110,32,110,110,110,110,136,136,136,127,153,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,110,153,153,153,145,145,0,121,0,0,0,0,0,0,0,0,14,70,0,70,0,81,82,82,89,89,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. Nbd2 d5 5. g3 g6 6. Bg2 Bg7 7. O-O Nge7 8. Re1 b6 9. e5 Qc7 10. Qe2 h6 {[#]} 11. Nb1 $146 {A08: King's Indian Attack.} ({Predecessor:} 11. h4 g5 12. hxg5 hxg5 13. Nxg5 Qxe5 14. Qxe5 Nxe5 15. Nc4 Nxc4 16. dxc4 Bb7 17. c3 Rd8 18. a4 O-O {½-½ (51) Kovalev,V (2650)-Ruck,R (2529) Batumi 2018}) 11... g5 $1 12. c3 Ba6 {And now ...Ng6 would win.} 13. c4 (13. Qd1 $15) 13... d4 (13... g4 14. Nh4) (13... dxc4 $17 14. dxc4 Rd8) 14. Na3 $11 {White wants to play Nb5.} Rd8 (14... Qd7 $11) 15. Nb5 $14 Bxb5 16. cxb5 Nb4 17. a3 $1 Nbd5 18. Nd2 Ng6 {[%cal Rg6e5]} 19. Nc4 Bf8 20. Be4 Rg8 (20... Be7 $16) 21. Kh1 (21. Bd2 $18) 21... Be7 $16 22. Bg2 Kf8 23. Qh5 Kg7 {[%cal Oa7a6]} 24. Rf1 Nxe5 25. Nxe5 Qxe5 26. f4 Qc7 27. fxg5 Bxg5 28. Bxg5 hxg5 29. Qxg5+ (29. Be4 $6 Kf8 $11) 29... Kf8 {[#]} 30. Rxf7+ $1 {[%mdl 512]} Qxf7 31. Qxd8+ Kg7 32. Qg5+ Qg6 33. Qxg6+ Kxg6 34. Bxd5 (34. b3 $16) 34... exd5 {[%mdl 4096] Endgame KR-KR} 35. Re1 {Prevents Re8.} c4 36. dxc4 $1 dxc4 37. Kg2 Rc8 38. Rd1 c3 39. bxc3 dxc3 40. Kf3 ({Better is} 40. Rc1 $1 $16) 40... Kf5 ({Black should try} 40... Rh8 $1 $14) 41. Ke3 c2 42. Rc1 Rc3+ 43. Kd4 $1 ({Reject} 43. Kd2 $6 Rxa3 44. Rf1+ (44. Kxc2 Ra2+ 45. Kb3 Rxh2 $11) (44. Rxc2 Rb3 $11) 44... Kg6 $11) 43... Rxa3 44. Rxc2 Kg4 45. Kc4 {Inhibits Rb3.} (45. Rc4 $142) 45... Kh3 46. Rb2 a6 47. bxa6 Rxa6 48. Kb5 Ra8 49. Rc2 Rb8 50. Rd2 Rc8 51. Kxb6 Rc1 52. Kb5 Rc8 53. Kb4 Rc7 54. Kb3 Rc8 55. Rc2 Rd8 (55... Ra8 $142) 56. Kc3 $1 Rd7 {[#]} 57. Rd2 $1 Re7 58. Kc2 (58. Kd4 $16) 58... Re6 (58... Re3 $11 {remains equal.}) 59. Kd1 (59. Kd3 $16) 59... Re8 60. Re2 Ra8 61. Kd2 Ra3 $1 62. Kc2 Rf3 $1 63. Rd2 Ra3 64. Re2 Rf3 $1 65. Kd2 Ra3 $1 {[#]} 66. Rf2 $1 {Prevents Rf3.} Rb3 67. Ke2 Ra3 68. Rf3 (68. Kd1 $16) 68... Ra2+ $11 {The position is equal.} 69. Ke3 Rxh2 70. Kf4 {g4+ would kill now.} Ra2 71. g4+ Kh4 $1 72. Rf1 Ra4+ 73. Kf5 Ra5+ 74. Kf4 {[%cal Rf1h1]} Ra4+ 75. Kf5 {White wants to mate with Rh1+.} Ra5+ 76. Kf4 {[%cal Rf1h1]} Ra4+ 77. Kf5 {Black must now prevent Rh1+.} Ra5+ {Weighted Error Value: White=0.15 (very precise) /Black=0.22 (precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.9"]
[White "Debashish Deb Purakaystha"]
[Black "Abdisalimov, Abdimalik"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1403"]
[BlackElo "2435"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,52,-26,-13,-36,-18,-62,-64,-85,-25,-102,-101,-112,-94,-137,-140,-135,-125,-149,-145,-202,-206,-192,-125,-201,-202,-205,-170,-182,-160,-220,-204,-254,-233,-297,-294,-303,-287,-297,-282,-371,-374,-515,-498,-529,-510]} 1. e4 c5 2. d3 Nc6 3. Nf3 Nf6 4. Be2 d5 5. exd5 Nxd5 6. c3 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} g6 7. h3 (7. d4 $11 {is superior.}) 7... Bg7 {[#]} 8. Nbd2 $146 {Black is slightly better.} ({Predecessor:} 8. a3 O-O 9. O-O Qc7 10. Nh2 e5 11. Re1 f5 12. Bf3 Be6 13. c4 Nf6 14. Be3 {0-1 (38) Herschmann,H (1362)-Sloan,C (1762) Hampstead 2013}) 8... Nf4 {Black is more active.} (8... e5 $17) 9. Ne4 (9. Nb3 $1 $11 Nxe2 10. Qxe2) 9... Nxe2 $17 (9... Nxg2+ $2 10. Kf1 $18) 10. Qxe2 b6 11. Bf4 ({Better is} 11. O-O) 11... O-O 12. O-O Ba6 $36 {[%mdl 2048] Black has strong initiative.} 13. Rfd1 e5 14. Bh2 (14. Bg5 $17 f6 15. Bh4) 14... f5 $19 15. Neg5 Qd5 {Prevents Ne6.} (15... e4 $19 {Strongly threatening ...Re8.} 16. Ne6 {[#]} exf3 $1 17. Qxf3 Qd7 18. Nxf8 Rxf8) 16. h4 (16. b4 $17 {was called for.}) 16... h6 17. Nh3 Rae8 18. Qc2 Rf7 {[%cal Bf8f7,Bf7d7,Bd7d5][%mdl 32]} 19. Qb3 (19. Qa4 $17 {is a better defense.} Bb7 20. Nd2) 19... Rd7 {[%cal Oa6d3]} 20. Qxd5+ Rxd5 21. d4 Be2 ({But not} 21... exd4 $2 22. Nf4 Rdd8 23. Nxg6 $19) 22. Re1 Bxf3 ({Less strong is} 22... exd4 23. Nf4 dxc3 24. bxc3 (24. Nxd5 cxb2 25. Rab1 Kf7 $15) 24... Bxc3 25. Nxd5 $14) 23. gxf3 {[%cal Oh3f4]} cxd4 24. cxd4 Nxd4 {[%cal Bc6d4,Bd4f3,Bf3h4][%mdl 32]} 25. Red1 Nxf3+ 26. Kg2 Nxh4+ {Weighted Error Value: White=0.45/Black=0.16 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.10"]
[White "Avigyan Ghosh"]
[Black "Gholami Orimi, Mahdi"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1385"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,89,29,14,28,26,30,18,19,1,19,8,0,0,0,0,0,-114,-109,-146,-152,-234,-187,-191,-204,-204,-170,-246,-127,-495,-481,-483,-453,-697,-685,-730,-706,-721,-711,-721,-714,-720,-695,-845,-725,-1632,-1615,-2497,-2473,-2474,-2462,-2145,-2035,-29983,-29984,-29986,-29987,-29987,-29988,-29990,-29991,-29991,-29992,-29991,-29992,-29992,-29993,-29993,-29994,-29994,-29995,-29995,-29996,-29996,-29997,-29997,-29996,-29996,-29997,-29998,-29999,-29999]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. Bb3 g6 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} 7. Nbd2 Bg7 8. O-O O-O {The position is equal.} 9. Nc4 Be6 10. Re1 Re8 11. a4 a5 {[#]} 12. Qc2 $146 ({Predecessor:} 12. h3 Qd7 13. Ne3 d5 14. exd5 Nxd5 15. Ng4 Nf4 16. Bxe6 Rxe6 17. d4 Rd8 18. Bxf4 exf4 {½-½ (44) Wan,Y (2499)-Yu,Y (2759) Hangzhou 2018}) 12... Qd7 13. d4 (13. h3 $11 {keeps the balance.}) 13... exd4 $17 14. cxd4 Nb4 15. Qb1 {[#]} (15. Qd1 $17 {keeps fighting.}) 15... Nxe4 $1 {[%mdl 512] ...Bf5 is the strong threat.} 16. Bxh6 ({Don't blunder} 16. Rxe4 $2 Bf5 17. Bd2 (17. Rxe8+ $2 Rxe8 18. Bd2 Bxb1 $19) 17... Bxe4 $19) 16... Bxh6 17. Rxe4 Kg7 18. Re1 (18. Rh4 $142) 18... Qc6 (18... b5 $19 19. Ncd2 Bxb3 20. Nxb3 Rxe1+ 21. Nxe1 bxa4) 19. Nfd2 {[%mdl 8192] This move loses the game for White.} (19. Rxe6 $17 {was the crucial defense.} Rxe6 20. d5 Nxd5 21. Nd4) 19... Bxd2 $19 20. Nxd2 Bxb3 21. Rxe8 (21. Nxb3 $142 Rxe1+ 22. Qxe1) 21... Bc2 {Active counter play!} ({Inferior is} 21... Qxe8 22. Nxb3 b6 23. Nd2 $17) 22. Rxa8 Bxb1 23. Rxb1 Qc2 24. Rxa5 Qxd2 25. Rb5 b6 26. h3 Qxd4 {Strongly threatening ...d5.} 27. a5 {[#]} Qd3 $1 {[%csl LRb1,LRb5]} 28. Rxb4 (28. axb6 Qxb5) 28... Qxb1+ {[%mdl 4096] Endgame KQ-KR} 29. Kh2 bxa5 30. Rb5 a4 {[%cal Oa4a3] ( -> ...a3!)} 31. Rb7 a3 {Black mates.} 32. Rxc7 axb2 33. Rb7 Qc2 34. f3 b1=Q 35. Rxb1 Qxb1 36. h4 d5 37. Kh3 d4 38. f4 d3 39. f5 gxf5 40. h5 d2 41. h6+ Kxh6 42. g4 f4 {[%cal Rb1h1]} 43. g5+ Kxg5 {[%cal Rb1h1]} 44. Kg2 d1=Q 45. Kh2 Qh1# {Weighted Error Value: White=0.89/Black=0.12 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.11"]
[White "Poormosavi, Seyed Kian"]
[Black "Thong Teron"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2229"]
[BlackElo "1325"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,94,17,22,25,10,14,0,18,4,37,5,33,12,15,18,52,20,31,18,25,0,0,-12,39,40,51,52,75,71,78,73,149,140,283,190,292,295,285,283,281,285,341,308,337,327,335,337,313,226,277,260,360,362,353,329,887,889,866,868,933,929,964,955,5006,1342,2572,1325,29973,29974,29970,29971,29968,29967,7864,1714,29998,29999,29999]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bg4 4. O-O e6 5. d3 Nbd7 6. Nbd2 Bd6 7. e4 c6 8. Qe2 O-O 9. h3 Bxf3 10. Nxf3 {[#] Hoping for e5.} Qc7 {A07: Réti Opening: New York and Capablanca Systems.} 11. Re1 {e5 is the strong threat.} e5 {[#]} 12. Nh2 $146 ({Predecessor:} 12. Bg5 Rfe8 13. Nh4 Bf8 14. Nf5 h6 15. Bd2 Rad8 16. Rad1 dxe4 17. dxe4 Nc5 18. b3 {1-0 (48) Topalov,V (2774)-Svane,R (2467) Kozloduy 2013}) 12... Rae8 {The position is equal.} 13. Bd2 b6 14. Bf3 Kh8 15. Kg2 a5 16. Ng4 Qb8 17. Rh1 Qb7 18. Rad1 (18. Ne3 {looks sharper.} Nc5 19. Nf5 Qd7 20. h4 Bc7 21. a3) 18... d4 19. h4 Ng8 20. h5 f6 (20... h6 $11) 21. Nh2 $14 {[%cal Bg4h2,Bh2f3,Bf3h4,Bh4g6][%mdl 32]} h6 22. Kg1 Rf7 23. Bg2 Qc7 24. Nf3 Nc5 (24... Nf8 $142) 25. Nh4 Ne6 {Black cannot hold the game after this.} (25... Ne7 $16) 26. Ng6+ $18 Kh7 27. Bh3 {[#] Strongly threatening Bf5.} f5 28. Bxf5 Rxf5 29. exf5 Nc5 30. Kg2 Nf6 31. Qf3 e4 32. dxe4 Ncxe4 33. Bf4 c5 34. Rde1 Qd7 35. Bxd6 Qxd6 36. Re2 Rd8 $2 (36... c4 37. Rd1 b5) 37. Rxe4 Nxe4 38. Qxe4 c4 39. Rd1 {[%cal Bh1d1,Bd1d2,Bd2d3,Bd3d4,Bd4d8,Bd8f8][%mdl 32]} d3 40. cxd3 {[%cal Of5f6] Threatens to win with f6!} cxd3 41. Rd2 {[%cal Of5f6] And now f6! would win.} b5 42. Nf4 {[%cal Rd2d3]} Qb4 43. Qxb4 axb4 44. Rxd3 Ra8 45. Ng6 Kg8 46. Rd4 Ra4 47. Rd8+ Kf7 48. Rf8# {Weighted Error Value: White=0.13 (very precise) /Black=0.75} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.12"]
[White "Franco Valencia, Angela"]
[Black "Litingse Sangtam S"]
[Result "1-0"]
[ECO "C08"]
[WhiteElo "2116"]
[BlackElo "1266"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,67,6,4,7,0,0,55,48,66,54,68,47,70,70,66,53,60,46,53,55,83,7,0,-6,-13,-18,-23,-19,212,197,201,197,185,175,362,197,187,193,187,198,274,258,457,354,354,343,722,720,712,706,692,646]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Nc6 6. Ngf3 Nf6 7. O-O Be7 8. dxc5 O-O 9. c3 Bxc5 10. Nb3 {C08: French Tarrasch: 3...c5 4 exd5 exd5 sidelines.} Bb6 11. Bg5 {11.h3 gains popularity.} Qd6 ({Black should try} 11... Bg4 $11) 12. Bxf6 $14 {[#] White is slightly better.} gxf6 $146 ({Predecessor:} 12... Qxf6 13. Qxd5 Be6 14. Qh5 Bc7 15. Bxc6 bxc6 16. Nbd4 c5 17. Nxe6 fxe6 18. Qxc5 Rac8 {½-½ (28) Kakumanu,K (2306)-Khnykin,N (2309) Chess.com INT 2021}) 13. Nfd4 Kh8 14. Qh5 Rg8 15. Bd3 {[%csl Gd3][%cal Rh5h7] [#]} Rg7 16. Rfe1 {Threatening mate with Re8+. Really sharp!} Bg4 17. Qh4 Rag8 18. Kh1 $1 $40 {[%mdl 128] Black needs to defend precisely.} Bd7 19. Nb5 {White is more active.} (19. g3 $16) 19... Qb8 $11 {Hoping for ...Ne5.} 20. Qxf6 Bd8 21. Qd6 Qxd6 22. Nxd6 a6 $2 {This costs Black the game.} (22... Bc7 $11 {and Black has nothing to worry.} 23. Nb5 {[#]} Ne5 $1 24. Bxh7 (24. Nxc7 Nxd3 25. g3 Nxe1 $17) 24... Bxb5 25. Bxg8 Ng4) 23. Nc5 {[%cal Bb3c5,Bc5d7,Bd7f6][%mdl 32] Pair of Knights!} ({Resist} 23. Nxb7 $6 Rxg2 24. Nxd8 Nxd8 $14) 23... Bc7 24. Nxd7 {Threatens to win with Ne8.} ({Don't take} 24. Ncxb7 f6) 24... Bxd6 25. Nf6 {[%csl LRd5,LRg8]} Ne5 $2 (25... Rxg2 26. Nxg8 Rxh2+ 27. Kg1 Kxg8) 26. Be2 (26. Nxg8 $142 Nxd3 27. Nh6 Nxe1 28. Rxe1) 26... Rd8 $18 27. Rad1 Rg6 28. Nxd5 Rdg8 (28... Bc5 $142 29. f4 Rgd6) 29. g3 Bc5 $2 (29... Re6 {keeps fighting.} 30. Nf4 Rh6) 30. f4 Nc6 31. Bh5 R6g7 (31... Rh6 32. Bxf7 Rf8) 32. b4 {White is clearly winning.} Ba7 33. Nf6 Rc8 34. Rd7 {[%csl LRb7,LRf7] Weighted Error Value: White=0.19 (very precise) /Black=0.49} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.13"]
[White "Muhammed, Shuaau"]
[Black "Swaraj Jyoti Neog"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1970"]
[BlackElo "1138"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,67,32,39,41,35,24,26,27,40,31,43,31,41,39,60,44,43,56,81,33,180,180,198,191,692,679,1357,1340,1301,1272,12817,7750,29973,29974,6143,2093,2477,1728,29983,29984,29989,29990,29990,29988,29988,29989,29989,29989,29990,29991,29991,29990]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 8. Qd2 Be6 9. O-O-O a6 (9... Bxa2 $2 10. b3 $18) 10. Kb1 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Qd7 11. h4 h6 12. Be2 {White has an edge.} O-O-O 13. Nd4 Bf6 14. Nxe6 fxe6 15. g4 {[#]} Kb8 $146 ({Predecessor:} 15... Qf7 16. g5 hxg5 17. hxg5 Be7 18. Rhf1 Rh2 19. f4 Rdh8 20. Rde1 Bd8 21. a3 Ne7 {1-0 (51) Merrheim,X (2377)-Popov,V (2224) ICCF email 2014}) 16. g5 hxg5 17. hxg5 Be7 18. Bg4 {White is more active. This bishop pair is nice.} ({White should play} 18. Rxh8 $1 $16 Rxh8 19. f4) 18... Ne5 {[#] Loses the game.} (18... Rxh1 $1 $14 19. Rxh1 Ne5) 19. Rxh8 $1 $18 Rxh8 {[#]} 20. Qd4 {Intending Qa7+ and mate.} c5 $2 {[#]} (20... Kc8) 21. Qxe5 $1 {[%mdl 512]} Rh1 {Threatens to win with ...Rxd1+.} (21... dxe5 22. Rxd7) 22. Qxg7 Rxd1+ 23. Bxd1 Kc8 24. Bg4 {White threatens Qf7 and mate.} Kd8 25. Qg8+ Kc7 26. Qxe6 Qxe6 27. Bxe6 {Strongly threatening f4.} Kd8 28. g6 {White mates.} Bf6 {[#]} 29. Bg5 $1 Ke7 {[#]} 30. g7 $1 Kxe6 31. g8=Q+ Kf5 32. Qd5+ Kg6 33. Bxf6 Kxf6 34. Qxd6+ {Weighted Error Value: White=0.06 (flawless) /Black=1.29} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.14"]
[White "Baghirova, Khatun"]
[Black "Rachit Gianchandani"]
[Result "1-0"]
[ECO "B72"]
[WhiteElo "1855"]
[BlackElo "1103"]
[Annotator "NA RC"]
[PlyCount "99"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 O-O 8. Bb3 Bd7 9. O-O Nc6 10. h3 Qc8 11. f4 Nh5 12. Nd5 Re8 13. f5 e6 14. fxg6 hxg6 15. Nb5 exd5 16. Nxd6 Qc7 17. Bxd5 Be6 18. Nxf7 Be5 19. Rf3 Nf6 20. Nxe5 Qxe5 21. Bxc6 Red8 22. Qf1 bxc6 23. Rxf6 Qxe4 24. Re1 Re8 25. Bh6 Qd4+ 26. Kh2 Bf5 27. Rxc6 Rxe1 28. Qxe1 Qxb2 29. Qe7 Rc8 30. Rf6 Qb8+ 31. Rd6 Qb2 32. a4 a5 33. h4 Qc3 34. h5 Qh8 35. Rxg6+ Bxg6 36. Qe6+ Bf7 37. Qxc8+ Kh7 38. Qxh8+ Kxh8 39. g4 Be8 40. c4 Kh7 41. Bd2 Bxa4 42. Bxa5 Kh6 43. Bd2+ Kh7 44. Kg3 Bc6 45. Kf4 Kh6 46. Kf5+ Kh7 47. g5 Bf3 48. g6+ Kh8 49. Bc3+ Kg8 50. h6 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.15"]
[White "Aarohan Saikia"]
[Black "Kolomwe Willian"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1421"]
[BlackElo "1783"]
[Annotator "NA RC"]
[PlyCount "64"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 b6 3. Nc3 Bb7 4. Bc4 d6 5. d4 Nd7 6. O-O Ngf6 7. Re1 Be7 8. Bd2 O-O 9. h3 h6 10. a3 Re8 11. Rb1 Nf8 12. e5 dxe5 13. Nxe5 Qxd4 14. Ba2 Red8 15. Nd3 c5 16. Be3 Qh4 17. Qe2 Ng6 18. Rbd1 Rac8 19. Nc1 Bd6 20. Rd2 Nf4 21. Bxf4 Qxf4 22. g3 Qf5 23. Kh2 Bf3 24. Qa6 Qh5 25. Qf1 Bxg3+ 26. Kxg3 Rxd2 27. Nd3 Bb7 28. Kh2 Qf3 29. Re3 Qxe3 30. Bb1 c4 31. Nd1 Qf3 32. Ne1 Qxd1 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.16"]
[White "Farooq, Noor"]
[Black "Mridusman, Kashyap"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "1693"]
[Annotator "NA RC"]
[PlyCount "42"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nc6 7. Qd2 Qb6 8. Ne6 Qxb2 9. Nxg7+ Kd8 10. Rb1 Qa3 11. Bc4 e6 12. Nb5 Qa6 13. Nxd6 Qa5 14. Nxb7+ Ke7 15. Nxa5 Nxa5 16. Qxa5 Bd7 17. Rb7 Nf6 18. Bg5 Rab8 19. Rxb8 Rxb8 20. O-O Rg8 21. e5 Bc8 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.17"]
[White "Visakh N R"]
[Black "Rituraj Tamuli"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2522"]
[BlackElo "1480"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,66,-9,0,0,10,0,15,17,35,18,23,13,12,12,55,43,97,72,191,207,196,171,271,268,283,264,312,261,273,260,419,-1202,1273,-1567,814,-493,362,362,353,0,0,0,0,-117,-127,-29970,-127,-29995,29992,29993,29993,-29990,29994,29995,29998,29999,29999]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 e6 4. e3 Be7 5. Bd3 Nbd7 6. f4 c5 7. c3 {D00: 1 d4 d5: Unusual lines.} b6 8. Ngf3 Bb7 9. Ne5 {The position is equal.} a6 10. O-O h6 {[#]} 11. Bxf6 $146 ({Predecessor:} 11. Bh4 g6 12. Rc1 {½-½ (12) Hamm,G (2135)-Mueller,R (2232) Berlin 2008}) 11... Nxf6 12. Qf3 O-O (12... Qc7 $11) 13. Rad1 Rc8 (13... a5 $14) 14. f5 $1 $16 {White is much more active.} Rc7 (14... exf5 $16 15. Qxf5 cxd4) 15. fxe6 $18 fxe6 16. Qh3 Qd6 (16... Qc8 {was called for.} 17. Qg3 Bc6) 17. Rf3 Ne4 18. Bxe4 dxe4 19. Rxf8+ Bxf8 20. Ndc4 Qd5 (20... Qe7 {might work better.} 21. Rf1 Qe8 22. Nxb6 Bc6) 21. dxc5 $4 {[%mdl 8192]} bxc5 $4 {[%mdl 8192]} 22. Nb6 $4 {[%mdl 8192] Pair of Knights!} Qxa2 $4 {[%mdl 8192]} (22... Qxd1+ $19 23. Kf2 Qd2+ 24. Kf1 Qc1+ 25. Kf2 Qxb2+ 26. Kg3 Qxb6) 23. Nd5 $4 {[%mdl 8192]} exd5 {[%mdl 8192]} (23... Bxd5 $19 24. Qh5 Qa4) 24. Qe6+ Kh7 25. Ng6 $2 ({Better is} 25. Qg6+ $18 Kg8 26. Rf1) 25... Bd6 $1 $11 26. Qxd6 {White threatens Nf8+ and mate.} Rf7 (26... Rc6 27. Nf8+ Kh8 28. Qd7 $16 (28. Qxd5 Qxd5 29. Rxd5 Rb6 $14)) 27. Ne5 (27. Ne7 $11 {keeps the balance.} d4 28. Qg6+ Kh8 29. Qb6 $1) 27... Rf6 $17 28. Qxd5 {[%mdl 8192]} Qxb2 $2 (28... Bxd5 {mates} 29. Nd7 Rf5 30. g4 Rg5 31. h3 Qxb2 32. c4 Bxc4 33. Nf8+ Kg8 34. Rd8 Kf7 35. Nh7 Re5 36. Rc8 Qc1+ 37. Kh2 Qd2+ 38. Kg3 Qxe3+ 39. Kg2 Qf3+ 40. Kh2 Qf2+ 41. Kh1 e3 42. Rc7+ Ke8 43. Nf6+ gxf6 44. Rc8+ Kd7 45. Rd8+ Kxd8 46. h4 Bd5#) 29. Qxe4+ $2 {[%mdl 8192]} Kg8 $4 {[%mdl 8192]} (29... Bxe4 30. Nf3 Bxf3 31. Rd2 Qxd2 32. gxf3 Rb6 33. h4 Rb1#) 30. Rd8+ Rf8 {[#]} 31. Qd5+ $4 {[%mdl 8192]} Kh7 $4 {[%mdl 8192]} (31... Bxd5 32. Rxf8+ Kxf8 33. e4 {[#]} Qxc3 $1 34. Ng6+ Ke8 35. Kf2 Qd4+ 36. Ke2 Qxe4+ 37. Kf2 Qxg6 38. Ke3 Qxg2 39. Kd3 Qxh2 40. Kc3 Be4 41. Kb3 Qb8+ 42. Ka2 c4 43. Ka3 Qb3#) 32. Qd3+ {White mates.} Kg8 33. Rxf8+ Kxf8 34. Qd8# {Never resign too early!  Weighted Error Value: White=1.43/Black=1.16} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.18"]
[White "Anuraag Saikia"]
[Black "Deepan Chakkravarthy J."]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "1465"]
[BlackElo "2520"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,82,2,31,0,1,-39,-35,-35,-40,-50,-23,-29,-35,-17,-10,-12,-15,-17,-4,-52,-14,0,-7,-15,8,6,97,-54,-68,-110,-44,-53,-51,-43,-41,-50,-44,-37,-50,-42,-36,-39,-39,-47,-32,-41,-24,-36,-43,-43,-37,-43,-51,-66,-66,-1145,-1136,-1220,-1258,-1139,-1112,-29991,-29992,-29994,-29995,-29996,-29997,-29997,-29998]} 1. Nf3 g6 2. d4 Bg7 3. c4 f5 4. Nc3 Nf6 5. g3 O-O 6. Bg2 d6 7. O-O c6 $1 {[%mdl 4] now scores much better than the old 7...Qe8.} 8. Qc2 Na6 9. Bg5 {A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} Qc7 {[#]} 10. Qc1 $146 ({Predecessor:} 10. Rac1 e5 11. d5 Nc5 12. Bxf6 Bxf6 13. b4 Nd7 14. e4 f4 15. Rfd1 c5 16. Nb5 {0-1 (44) Servant,M-Robitaille,D Charlesbourg 2005}) 10... e5 $1 11. dxe5 {Black is slightly better.} dxe5 12. Bh6 Be6 13. Bxg7 Kxg7 14. b3 h6 15. Qb2 Rae8 16. Na4 Bd7 17. c5 (17. Rad1 $11 {is superior.}) 17... b5 (17... e4 $5 {[%cal Re4f3]} 18. Nd2 Be6 $15) 18. cxb6 $1 axb6 19. Rac1 c5 20. Rfd1 Bc6 {[#]} (20... e4 $11 21. Nd2 (21. Nxb6 Bc6 $17) 21... Rd8) 21. Nh4 $2 (21. Nxe5 $1 $16 Bxg2 {[#]} 22. Rd7+ $1 Nxd7 23. Nxd7+ Kh7 24. Nxf8+ Rxf8 25. Kxg2) 21... e4 $15 22. e3 {To avoid f4} (22. Bh3 $15) 22... Nb8 (22... Nb4 $17 {And now ...Nd3 would win.} 23. Bf1 Rd8 24. Rxd8 Rxd8) 23. Bf1 Nbd7 24. Nc3 Ne5 25. Nb5 Bxb5 26. Bxb5 Rd8 27. Be2 Qe7 28. Ng2 g5 29. Ne1 {[%cal Ob3b4]} Kg6 30. Qb1 Qe6 31. Rxd8 Rxd8 32. Rd1 {Prevents Rd2.} Nd5 {Threatens to win with ...Nc3. Pair of Knights!} 33. Qc1 {Inhibits Nc3.} Qf6 {[%cal Od5c3]} 34. Bc4 Nxc4 {Black is much more active.} 35. Qxc4 {[%mdl 8192] [#] This costs White the game.} (35. bxc4 $15 Nb4 36. Qb1) 35... Nxe3 $1 $19 {[%mdl 512]} 36. fxe3 (36. Rd6 Nxc4) 36... Rxd1 $15 {KQR-KQN} 37. Qg8+ Kh5 {( -> ...Qc3)} 38. Qe8+ Kg4 {Black mates.} 39. h3+ Kxg3 {[%cal Rd1e1]} 40. Qb8+ f4 {[%cal Rd1e1]} 41. Kf1 Qb2 {Weighted Error Value: White=0.44/Black=0.12 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.19"]
[White "Stany, G.A."]
[Black "Rajbeer Ahmed"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2517"]
[BlackElo "1461"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,77,34,41,7,51,38,44,38,42,36,64,18,127,120,120,98,113,54,55,61,207,208,236,240,318,311,311,259,276,259,256,256,312,313,320,287,298,315,289,289,391,400,2201,2248,2136,2136,1652,1522,1395,1273,6804,6909,5457,5285,1849,1579,1185,1177,29987,29987]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 c6 5. Bg2 Be7 6. O-O O-O 7. Qc2 b6 8. Rd1 Bb7 9. b3 Nbd7 10. Nc3 Rc8 11. Bf4 {E08: Closed Catalan: Main Line: 7 Qc2.} Ba6 (11... Nh5 $11) 12. e4 $1 $14 dxc4 13. Nd2 $1 {White is slightly better.} c5 14. d5 {Threatens to win with d6.} e5 15. Bg5 {[#]} (15. Be3 $14) 15... cxb3 $146 (15... Nxd5 $1 $11 {remains equal.} 16. Nxd5 Bxg5) ({Predecessor:} 15... Ne8 16. Bxe7 Qxe7 17. bxc4 Nd6 18. Qa4 Nb8 19. Qb3 Rc7 20. a4 Nd7 {1-0 (53) Kortschnoj,V (2635)-Gurevich,M (2585) Antwerp 1995}) 16. axb3 $16 Nb8 {[%cal Of6d5]} 17. Bh3 $36 {[%cal Bg2h3,Bh3c8,Bc8f5][%mdl 2080] Hoping for Nc4. Keeping Black busy.} Rc7 18. Nc4 (18. d6 $16 Bxd6 19. Rxa6 Nxa6 20. Nc4) 18... Bxc4 $14 19. bxc4 {[%cal Od5d6]} Bd6 {Loses the game.} ({Black should play} 19... Ne8 $1 $14) 20. Nb5 $18 {[%csl LRa7,LRc7][%cal Bc3b5,Bb5a3,Ba3c2,Bc2e3,Be3f5][%mdl 32] aiming for Bxf6.} Rb7 {[#]} 21. Bc8 $1 {[%mdl 512]} Re7 (21... Rc7 22. Nxc7) 22. Bxf6 gxf6 23. Bf5 a6 {[#]} 24. Qe2 $1 {[%cal Oe2h5] White threatens Qh5! and mate.} h6 25. Na3 Rb7 26. Nc2 ({Don't do} 26. Qh5 $6 Kg7 27. Qg4+ Kh8 $18) 26... Kg7 27. Qg4+ Kh8 28. Ne3 Rg8 29. Qh4 {[%cal Rh4h6]} Kg7 30. Bc8 {[%mdl 64] Skewer} Rc7 (30... Qxc8 $142 31. Nf5+ Qxf5 32. exf5 Ra7) 31. Nf5+ Kf8 32. Qxh6+ Ke8 33. Bxa6 Nxa6 34. Rxa6 Rb7 35. Nxd6+ Qxd6 36. Ra8+ Rb8 37. Rxb8+ Qxb8 38. Qxf6 {d6 is the strong threat.} Kf8 39. d6 {Weighted Error Value: White=0.10 (very precise) /Black=0.65} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.14"]
[Round "1.20"]
[White "Amar, Jyoti Kakoty"]
[Black "Iniyan, P."]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1451"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,50,24,38,8,22,0,0,0,0,0,0,0,0,0,6,0,-25,-116,-106,-104,-85,-218,-231,-228,-148,-213,-203,-210,-193,-192,-183,-511,-510,-489,-503,-482,-482,-680,-668,-658,-649]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. O-O Nf6 5. Re1 O-O 6. d4 d6 7. dxe5 {C41: Philidor Defence.} dxe5 8. Qxd8 (8. Qe2 {is interesting.} a6 9. h3 Bc5 10. c3 h6 11. b4) 8... Rxd8 {[#]} 9. h3 $146 {Inhibits Bg4. The position is equal.} ({Predecessor:} 9. c3 Bg4 10. Nbd2 Nd7 11. b4 Nb6 12. Bb3 a6 13. a4 Bxf3 14. Nxf3 Rd3 15. Re3 {½-½ (22) Vykouk,J (2238)-Pulpan,J (2300) Czech Republic 2015}) 9... h6 10. a3 a6 11. Nc3 Be6 {To avoid Nd5} 12. Bd3 g5 13. g4 Nd4 14. Kg2 {[#]} (14. Nxe5 $2 Bd6 15. Nc4 (15. f4 $2 gxf4 16. Bxf4 Bxe5 $19) 15... Bxc4 16. Bxc4 Nxc2 $19) (14. Nxd4 $1 $11 {keeps the balance.} exd4 15. Ne2) 14... c5 $1 $17 {[%cal Bc7c5,Bc5c4][%mdl 32] Black is more active.} 15. Nxd4 exd4 ({Reject} 15... cxd4 $6 16. Ne2 $11) 16. Ne2 {White does not recover from this.} (16. Nb1 $17) 16... c4 $19 17. e5 Bd5+ ({And not} 17... cxd3 18. exf6 Bxf6 19. cxd3) 18. f3 (18. Kg1 $17 {was called for.} cxd3 19. exf6 Bxf6 20. cxd3) 18... cxd3 19. exf6 Bxf6 ({Weaker is} 19... dxe2 20. fxe7 Rd7 21. Rxe2 $11) 20. cxd3 Rac8 {Threatens to win with ...Rc2.} 21. b4 $2 {[#]} (21. Rf1 {is more resistant.}) 21... Rc2 {And now ...Re8 would win. Black is clearly winning.} 22. Rb1 Re8 23. Kf2 b5 24. f4 (24. Rb2 $142 Rexe2+ 25. Rxe2 Rxc1 26. Rec2) 24... gxf4 25. Bxf4 Bh4+ {Weighted Error Value: White=0.50/Black=0.06 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.1"]
[White "Mohit Kumar Soni"]
[Black "Ponkratov, Pavel"]
[Result "0-1"]
[ECO "C22"]
[WhiteElo "1856"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,48,-43,-52,-49,-22,-68,-68,-356,-317,-371,-358,-364,-362,-577,-567,-565,-552,-715,-716,-689,-605,-616,-431,-675,-493,-971,-943,-1281,-1278,-1269,-1260,-1197,-872,-862,-861,-808,-792]} 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. O-O-O Re8 $1 8. f3 {[#] C22: Centre Game.} a5 $146 ({Predecessor:} 8... d5 9. Qf2 dxe4 10. Bg5 Bd7 11. Nd5 Be7 12. Nxe7+ Qxe7 13. Bxf6 gxf6 14. fxe4 Rad8 15. Qg3+ Kh8 16. Qxc7 Bg4 17. Rxd8 Rxd8 18. Qxe7 Rd1# {0-1 (18) Stankovic,I (2255)-Howell,D (2646) Chess.com INT 2022}) 9. g4 (9. Qf2 $11 {feels stronger.}) 9... d5 $15 {Threatens to win with ...d4.} 10. g5 $2 {[%mdl 8192] [#]} (10. Be1 $15) 10... d4 $1 $19 11. Qf2 (11. Qf4 dxc3) 11... dxc3 12. Bxc3 Nd7 {White must now prevent ...Bxc3.} 13. h4 (13. Ne2 {was called for.}) 13... Bxc3 {Black is clearly winning.} 14. bxc3 Qe7 15. g6 Qa3+ 16. Kd2 hxg6 17. h5 Qc5 18. Qh2 (18. Qxc5 $142 Nxc5 19. hxg6) 18... gxh5 19. Kc1 (19. Qxh5 $142 Qxh5 20. Rxh5) 19... Nf6 20. Rd5 Nxd5 21. Qxh5 Qe3+ 22. Kb2 {[#]} Qh6 $1 23. Qxh6 (23. exd5 Qxh5) 23... gxh6 24. exd5 {[#]} Re1 $1 {Black took control after the opening.  Weighted Error Value: White=1.52/Black=0.36} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Baghirova, Khatun"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2615"]
[BlackElo "1855"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,57,14,4,0,13,19,43,9,87,82,79,82,85,79,105,110,109,118,111,89,162,175,171,152,166,175,186,186,187,191,258,260,418,420,468,466,410,407,617,527,1204,1188,1639,1054]} 1. e4 c5 2. Nf3 d6 3. Bc4 {[%cal Bf1c4,Bc4b3,Bb3c2][%mdl 32]} e6 4. d3 Nc6 5. c3 Nf6 6. Bb3 Be7 7. O-O O-O 8. Re1 b5 9. d4 {B50: Sicilian: 2...d6, Miscellaneous.} Na5 10. Bc2 Bb7 {[#]} 11. Nbd2 $146 {White is slightly better.} ({Predecessor:} 11. dxc5 dxc5 12. Qe2 a6 13. e5 Nd5 14. Qe4 g6 15. Qg4 Kg7 16. Nbd2 c4 17. Ne4 {1-0 (56) Godena,M (2541)-Brunello,M (2155) Cento 2011}) 11... Nc4 (11... Qc7 $11) 12. Nxc4 $16 bxc4 13. dxc5 d5 {[%cal Rf6e4]} 14. e5 Nd7 15. c6 Bxc6 16. Nd4 Bb7 17. Qg4 {Threatens to win with Re3. White is more active.} Nc5 (17... Re8 $16) 18. Bh6 $1 $40 {[%csl Gh6][%cal Rg4g7][%mdl 128] White has strong attack.} g6 19. Bxf8 Bxf8 20. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} Bg7 21. h5 Qe7 22. Re3 {[%cal Be1e3,Be3h3,Bh3h7][%mdl 32]} Rf8 (22... a5 $142 23. f4 (23. hxg6 hxg6 24. b3 Ba6 $18) 23... a4 24. hxg6 hxg6) 23. hxg6 fxg6 (23... hxg6 24. b4 cxb3) 24. b4 cxb3 25. axb3 {[%cal Ba2b3,Bb3b4][%mdl 32]} ({Not} 25. Nxb3 Ne4 $18) 25... Bc8 26. b4 Na6 (26... Ne4 $142 27. Bxe4 dxe4 28. Qxe4 a6) 27. Rh3 {White is clearly winning.} Nb8 {[#]} 28. Rxh7 $3 {[%mdl 512]} Qf7 {[#]} (28... g5 29. Qh5) 29. Nf3 $1 {[%mdl 512] White took control after the opening.  Weighted Error Value: White=0.07 (flawless) /Black=0.48} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.3"]
[White "Bristy Mukherjee"]
[Black "Mosadeghpour, Masoud"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1856"]
[BlackElo "2511"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,59,-79,-63,-130,-114,-210,-200,-240,-209,-216,-230,-275,-291,-266,-269,-259,-262,-262,-260,-533,-537,-535,-533,-571,-567,-633,-596,-608,-603,-684,-685,-1061,-1011,-993,-987,-1216,-1080,-1105,-1102,-1084,-864,-1280,-1285,-29995,-29996,-29996,-29997,-29997,-29998,-29998,-29999,-29999]} 1. d4 Nf6 2. Bg5 d5 3. e3 Nbd7 4. f4 c5 {[%cal Bc7c5,Bc5c4][%mdl 32]} 5. c3 {[#]} Qb6 $1 6. Qb3 {[#] D00: 1 d4 d5: Unusual lines.} (6. Qc1 $15) 6... Qe6 $146 ({Predecessor:} 6... Ne4 7. Nf3 e6 8. Nbd2 Ndf6 9. Bxf6 Nxf6 10. Ne5 Bd7 11. Be2 Bd6 12. O-O Qxb3 13. axb3 {½-½ (60) Sotsky,A (2410)-Kalinowski,R (2199) Warsaw 2009}) 7. Bxf6 (7. c4 $17) 7... c4 $19 (7... exf6 8. Kf2 $17) (7... Nxf6 8. Qb5+ Bd7 9. Qe2) (7... gxf6 8. Kf2 $11) 8. Qa4 {Black is clearly better.} Qxe3+ ({Weaker is} 8... gxf6 9. Kf2 $15) ({And not} 8... Qxf6 9. Nd2 $11) (8... exf6 9. Kf2 $17) 9. Ne2 {Hoping for Be5.} exf6 ({Worse is} 9... gxf6 10. Na3) 10. h4 Bd6 11. Rh3 Qe7 12. Kf2 {Black must now prevent Re3.} O-O 13. Re3 Qd8 14. f5 $2 {[#]} (14. Qc2) 14... Ne5 $1 {[%mdl 512]} 15. dxe5 fxe5 {Threatens to win with ...Bc5.} 16. Qb5 {Inhibits Bc5.} Bc7 17. g3 a6 18. Qa4 Bb6 19. Na3 Qf6 20. Ng1 Bxe3+ 21. Kxe3 Qb6+ 22. Kf3 Qxg1 23. Qc2 e4+ 24. Kf4 Qb6 25. Qg2 {[#]} Bxf5 $1 {[%cal Of5h3] Strongly threatening ...Bh3!} 26. Kxf5 (26. g4 Be6) 26... h5 {[%csl Gg7][%cal Rb6f6] Black mates.} 27. Kf4 Qh6+ 28. Ke5 Rad8 {[%csl Gg7][%cal Rh6f6]} 29. Qf2 Rfe8+ 30. Kd4 {White did not feel at home in the position after the opening.  Weighted Error Value: White=1.03/Black=0.19 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.4"]
[White "Fawzy, Adham"]
[Black "Tadam Dupit"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2476"]
[BlackElo "1788"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,69,-35,-48,-32,51,44,225,97,204,172,216,218,229,240,244,245,243,170,172,185,255,258,313,300,353,348,327,280,325,314,393,361,435,425,467,459,481,470,886,558,5693,5701,1360,1342,5785,5125,29987,988,5589,5389,1960,618,1191,1149,29991,29992,29992,-1201]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 h6 8. Bh4 {C50: Hungarian Defence and Giuoco Pianissimo.} g5 ({Better is} 8... Qe7 $15) 9. f4 $1 $14 {[%cal Oc4f7]} Ne6 $2 (9... Nxe4 10. fxe5 d5 11. Qxd4 $16) ({Black should play} 9... d5 $14 10. exd5 Bg4) 10. fxe5 (10. Bxe6 $18 {is the precise move to win.} exf4 11. Bb3) 10... Nh7 {[#]} (10... gxh4 $16 {might work better.} 11. Rxf6 Qe7) 11. Bg3 $146 ({Predecessor:} 11. Qh5 Qe7 12. Bf2 Nf4 13. Qd1 b6 14. Nc3 Bb7 15. Bd4 Rg8 16. Nd5 Nxd5 17. exd5 {1-0 (30) Pages Lopez,D (1793)-Cros Garcia,M (1928) Banyoles 2018}) 11... Qe7 (11... Nhf8 {was called for.} 12. Nc3 c6) 12. Kh1 $18 b6 13. Nc3 {[#] Strongly threatening Nd5.} c6 {Prevents Nd5.} 14. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Nhf8 15. a5 {Hoping for axb6.} b5 16. Bxb5 Ng6 (16... Rb8 $142 17. Be2 Ng6) 17. Bc4 h5 18. Rf5 g4 19. Qd6 h4 20. Be1 Rh7 21. Rd1 Ngf8 22. Bf2 (22. Qxe7+ Kxe7 23. Be2 g3 24. hxg3 hxg3+ 25. Kg1 Rg7 $18) 22... g3 23. Be3 ({Less strong is} 23. Qxe7+ Kxe7 24. Be1 Nc7 25. hxg3 hxg3+ 26. Kg1 Ba6 $18) 23... gxh2 24. a6 ({Not} 24. Qxe7+ Kxe7 25. Kxh2 Ke8 $18) 24... Ng6 25. Rdf1 Qd8 (25... Kf8 $142 26. Bxe6 Qxd6 27. Rxf7+ Rxf7 28. Rxf7+ (28. exd6 $2 {is the wrong capture.} Rxf1+ 29. Kxh2 dxe6 $19) 28... Kg8 29. exd6 dxe6) 26. b4 {[%cal Of5f7] aiming for Rxf7!} Ne7 {[#]} 27. Rxf7 $3 {[%mdl 512]} Rxf7 28. Rxf7 {White threatens Bxe6 and mate.} Kxf7 29. Bxe6+ {[%mdl 64] Pin} Kg7 30. Bg5 (30. Bf5 $142 Nxf5 31. exf5 h3 32. gxh3 Qh4 33. Qg6+ Kh8 34. f6 Qh7 35. Qe8+ Qg8 36. f7) 30... Qe8 31. Bf6+ {A strong pair of Bishops.} Kh7 32. Bg4 (32. Bf5+ $142 Kg8 33. Bxe7) 32... Ng6 33. Bf5 {Qd1 would kill now.} Bxa6 34. Qd1 Kh6 35. Qh5+ $4 {[%mdl 40960] Black got outplayed after the opening.  Weighted Error Value: White=0.38/Black=0.96. Loss on time!?} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.5"]
[White "Lakshyesh Mohan Gupta"]
[Black "Mirzoev, Azer"]
[Result "0-1"]
[ECO "C51"]
[WhiteElo "1777"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,58,36,34,16,20,-25,-21,-36,-29,-39,-28,-26,-29,-32,-41,-50,-41,-297,-303,-404,-371,-392,-395,-418,-403,-791,-758,-702,-682,-684,-634,-632,-638,-1145,-943,-1158,-1155,-1592,-1361,-1330,-758,-943,-911,-900,-896,-1170,-1169,-1118,-1149,-1111,-1099]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a6 6. a5 {C51: Evans Gambit: Declined and Accepted without 5...Ba5.} Ba7 7. Bb2 (7. c3 {was preferrable.}) 7... d6 $11 8. b5 {The position is equal.} axb5 9. Bxb5 Nge7 10. d4 exd4 11. Nxd4 O-O 12. Nxc6 {[#]} Nxc6 $146 ({Predecessor:} 12... bxc6 13. Bd3 f5 14. O-O Ng6 15. exf5 Bxf5 16. Bxf5 Rxf5 17. Bd4 c5 18. Be3 d5 {1-0 (41) Cutter,P (2205)-Whitworth,P Guernsey 1989}) 13. a6 $2 {[%mdl 8192] [#]} (13. O-O $15) 13... Qg5 $1 $19 {[%csl LRb5,LRg2]} 14. Bxc6 Qxg2 {[%csl Ga7][%cal Rg2f2]} ({Inferior is} 14... bxc6 15. O-O $17) 15. Rf1 bxc6 16. Nd2 Bg4 {To avoid Qe2} 17. Qc1 (17. f3 $142 Bh3 18. Qe2) 17... f5 {Black is clearly winning.} 18. e5 Rfe8 19. Ra3 f4 20. f3 Bh3 {This bishop pair is nice.} 21. Kd1 Bc5 22. Rb3 Rxa6 23. c4 dxe5 24. Re1 Be3 25. Re2 Qg1+ 26. Re1 Qxh2 27. Re2 Qg1+ 28. Re1 Qg6 {White must now prevent ...Ra2.} 29. Qc2 Bf5 {White did not feel at home in the position after the opening.  Weighted Error Value: White=1.25/Black=0.36} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.6"]
[White "Tahbaz, Arash"]
[Black "Karki, Rajiv"]
[Result "1-0"]
[ECO "B39"]
[WhiteElo "2469"]
[BlackElo "1776"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,63,53,67,53,76,67,82,61,81,72,183,168,384,383,434,421,660,652,882,881,859,917,908,871,2362,2120,29985,29986,29992,29993,29993,29992,29992,29993,29993,29992,29992,29992,29993,29993]} 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 Bg7 7. Be3 Ng4 8. Qxg4 Nxd4 9. Qd1 Nc6 10. Qd2 Qa5 11. Rc1 O-O 12. Be2 d6 13. O-O Be6 14. f4 {B39: Sicilian: Maroczy Bind with 5...Bg7 and 7...Ng4.} Rfc8 {[#]} 15. a3 $146 ({Predecessor:} 15. Rfd1 Rab8 16. a3 a6 17. Nd5 Qxd2 18. Rxd2 Bxd5 19. cxd5 Na5 20. Rcc2 Rxc2 21. Rxc2 Nb3 {1-0 (47) Petrov,M (2423)-Raev,R (2315) Plovdiv 2007}) 15... a6 {[%cal Ob7b5]} 16. b4 {White is better.} Qxa3 17. f5 gxf5 (17... Bd7 $16) 18. exf5 $18 {[%cal Be4f5,Bf5f6,Bf6e7][%mdl 32]} Bxc4 (18... Bd7 {was called for.}) 19. Bxc4 Nxb4 20. Ne4 {Black must now prevent f6.} d5 {[#]} (20... b5 $142 21. f6 Rxc4) 21. f6 $1 dxc4 (21... exf6 22. Ra1) 22. Bh6 Qa5 23. Bxg7 {White wants to mate with Qh6.} Qd5 24. Qe3 {[%cal Of6e7]} Nd3 25. Bh6 {[#] Threatening mate with Qg3+.} Qh5 26. fxe7 {White mates.} Kh8 27. Nd6 {[%csl LRb7,LRc4,LRc8,LRf7]} Qc5 28. Nxc8 Qxe3+ 29. Bxe3 Rxc8 30. Rxc4 Re8 31. Rd4 Ne5 32. Rd8 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.01 (flawless) /Black=0.88} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.7"]
[White "Mandloi, Mukesh"]
[Black "Rios, Cristhian Camilo"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1749"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,52,-5,0,0,6,17,-59,-50,-44,-53,-47,-43,-72,-74,-95,-89,-129,-121,-118,-121,-117,-124,-141,-143,-215,-214,-190,-185,-234,-214,-456,-181,-462,-462,-440,-410,-669,-654,-624,-624,-1252,-1133]} 1. d4 {Edouard,Romain} d5 2. c4 e6 3. Nc3 Bb4 4. Qa4+ Nc6 5. Nf3 Nf6 6. Bg5 dxc4 7. e3 Qd5 {aiming for ...Ne4. D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} 8. Bxf6 gxf6 9. a3 (9. Nd2 $11 Bxc3 10. bxc3) 9... Bxc3+ $15 {Black is slightly better.} 10. bxc3 b5 11. Qc2 a6 {[%cal Ba7a6,Ba6b5][%mdl 32] [#]} 12. Be2 $146 ({Predecessor:} 12. e4 Qd6 13. g3 Bb7 14. Bg2 e5 15. Rd1 Qxa3 16. O-O O-O-O 17. Ra1 Qb3 18. Qc1 {½-½ (73) Harikrishna,P (2719)-Wojtaszek,R (2719) Biel 2020 CBM 197 Extra [Edouard,Romain]}) 12... Bb7 13. a4 Na5 14. axb5 axb5 15. O-O Rg8 16. Qxh7 {[#]} Ke7 $1 17. Rxa5 {[#]} Rh8 18. Qb1 (18. Rxa8 $17 {was called for.} Rxh7 19. Ra7) 18... Rxa5 $19 19. e4 Qd6 {[%cal Of6f5] Hoping for ...f5!} 20. e5 (20. h3 {was worth a try.}) 20... fxe5 21. dxe5 (21. Nxe5 {was forced.} c5 22. h3) 21... Qc5 $2 (21... Qa3 22. Qc1 Qxc1 23. Rxc1 Ra2) 22. Rd1 $2 (22. Qc1 {was the only chance.}) 22... Bxf3 23. Bxf3 Rd8 {And now ...Rxd1+ would win.} 24. g3 (24. Rf1 $142 Rd3 25. Qe1) 24... Rxd1+ {Black is clearly winning.} 25. Bxd1 Ra7 26. Qe4 Ra1 {White got outplayed after the opening.  Weighted Error Value: White=0.83/Black=0.16 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.8"]
[White "Nigmatov, Ortik"]
[Black "Anabil Goswami"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2445"]
[BlackElo "1334"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,92,6,-25,-22,-46,-33,-36,-29,-33,-31,-50,-46,-54,-35,-66,-58,-63,-43,-42,-31,-78,-17,-70,-59,-62,-9,-12,0,0,0,0,0,-37,-27,-21,79,86,69,47,37,-12,-10,-13,0,-78,-81,-133,-150,-172,-118,-128,-114,-137,-124,-190,-178,-304,-166,-439,-444,-567,-247,-479,-474,-462,-429,-483,-479,-483,-473,-2039,-2039,-1411,-1407,-6220,-6283,-5756,-5721,-2060,-1845,-29991,-29991,-29998,-29999]} 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 b6 5. c3 Bb7 6. Qc2 c5 {C00: French: Unusual White 2nd moves.} 7. Be2 Be7 8. O-O O-O {Black is slightly better.} 9. Re1 Qc7 10. a4 Nc6 11. Nf1 {[#]} Rac8 $146 ({Predecessor:} 11... a6 12. Ne3 b5 13. exd5 Nxd5 14. Nxd5 exd5 15. axb5 axb5 16. Rxa8 Rxa8 17. d4 c4 {0-1 (41) Pirker,C (2167)-Pali,P (2245) Playchess.com INT 2020}) 12. Ng3 h6 13. Bf1 Rfd8 14. e5 Nd7 {[%cal Rc6e5]} 15. Qe2 Nf8 (15... Na5 $17) 16. h4 (16. d4 $11) 16... d4 {[%cal Oc5c4]} 17. h5 $1 dxc3 (17... c4 $15 18. dxc4 dxc3) 18. bxc3 $11 Rd5 19. Bf4 Rcd8 20. Qe3 Ba6 {[%cal Ra6d3]} 21. c4 R5d7 22. Ne4 {[%cal Oa4a5,Bg3e4,Be4f6,Bf6d7][%mdl 32]} Nb4 {[#]} (22... Nh7 $1 $11) 23. Nf6+ $1 $16 Kh8 {[%cal Rd7d3]} (23... gxf6 $2 24. exf6 Qb7 25. fxe7 Rxe7 26. Be5 $18) 24. Nxd7 (24. Bxh6 $5 gxf6 25. exf6 Bxf6 26. Bf4 $15) 24... Nc2 $1 {[#]} 25. Qd2 (25. Nxc5 $1 $14 {is superior.} Bxc5 26. Qe2 Nxa1 27. Rxa1) 25... Nxe1 $11 26. Rxe1 {[%cal Od7f6] aiming for Nf6!} Qxd7 27. d4 {[#]} (27. Ra1 $11 {remains equal.}) 27... Bb7 $1 $36 {[%mdl 2048] Black has strong initiative.} ({Reject} 27... Qxa4 28. Bxh6 Bb7 29. Bg5 $11) 28. d5 ({White should try} 28. dxc5 Bxc5 29. Qc3) 28... exd5 29. e6 Nxe6 (29... fxe6 $19 30. cxd5 Qxd5 31. Qxd5 Bxd5) 30. Ne5 {[%csl LRd7,LRf7]} Qe8 31. Bxh6 {[%cal Oe5g6]} Bf6 {...dxc4 is the strong threat.} (31... gxh6 $2 32. Qxh6+ Kg8 33. Nxf7 Qxf7 34. Rxe6 $18) 32. Qc1 dxc4 33. Bxc4 (33. Ng4 $142) 33... Rd4 (33... Bxe5 $142 34. Rxe5 Qxa4) 34. Bb5 $2 (34. Bf4) 34... Qe7 $19 {White must now prevent ...Bxe5.} 35. Bd2 Rh4 (35... Bxe5 $142 36. Rxe5 Qd6 37. Rxe6 fxe6) 36. Bc4 $2 (36. Qc3) 36... Bxe5 37. Rxe5 Qd6 38. f4 Rg4 39. Bf1 Qc6 {[%cal Rg4g2]} 40. Kf2 (40. Re2 $142 Nd4 41. Qd1) 40... Rxg2+ 41. Ke1 Nd4 {( -> ...Nf3+)} 42. Bxg2 Qxg2 {[%cal Rg2g1]} 43. Re8+ Kh7 {[%cal Rg2g1]} 44. Qb1+ f5 {[%cal Rg2g1]} 45. Qd3 {[#]} Ba6 $1 {[%mdl 512]} 46. Qxa6 (46. Bc3 Bxd3) 46... Nf3+ {Weighted Error Value: White=0.71/Black=0.25 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.9"]
[White "Abdisalimov, Abdimalik"]
[Black "Iftikar Alom Mazumdar"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2435"]
[BlackElo "1748"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,38,14,0,39,31,64,54,92,79,61,67,74,67,78,91,424,425,467,464,464,468,459,456,452,417,486]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. Bg5 h6 6. Bh4 d6 7. e3 c5 8. Be2 cxd4 {E61: King's Indian: Early deviations for White, including Smyslov System.} (8... g5 $5 9. Bg3 Qb6 $11) 9. Nxd4 Nbd7 10. O-O a5 {White is slightly better.} 11. Rc1 {White is more active.} Nc5 {[#]} 12. f3 $146 {Inhibits Nfe4.} ({Predecessor:} 12. Qc2 a4 13. Rfd1 Qa5 14. h3 Bd7 15. Bf3 Rfc8 16. Qd2 Bc6 17. Nxc6 bxc6 18. Rb1 {½-½ (71) Gagarin,V (2289)-Jere,D (2370) Stockholm 2015}) 12... Qb6 13. Bxf6 Bxf6 14. Nd5 {[%cal Bc3d5,Bd5b6,Bb6a8][%mdl 32]} Qxb2 {[%mdl 8192] [#]} (14... Qd8 $16) 15. Rc2 $1 $18 Qa3 16. Nb5 Qa4 17. Nb6 {[%csl LRa4,LRa8] Pair of Knights!} Qb4 18. Nxa8 Bf5 {[#]} 19. e4 $1 Bxe4 {Black got outplayed after the opening.  Weighted Error Value: White=0.04 (flawless) /Black=0.69} (19... Nxe4 20. fxe4) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.10"]
[White "Gholami Orimi, Mahdi"]
[Black "Elangbam Shashikanta Singh"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2420"]
[BlackElo "1739"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,73,53,55,55,54,103,70,217,195,216,199,195,185,198,191,249,248,383,376,348,296,273,272,267,262,257,224,370,364,409,418,389,383,463,458,578,562,504,452,835,803,833,801,1053,1580,29971,4814,5612,2866]} 1. d4 {Jussupow,A} d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 c6 8. Nge2 Re8 9. Qc2 Nbd7 10. O-O Nf8 11. f3 {[%cal Bf2f3,Bf3e4][%mdl 32]} Nh5 12. Bxe7 Qxe7 13. e4 dxe4 14. fxe4 ({Much weaker is} 14. Nxe4 Bf5 $11) 14... Bg4 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 15. e5 Rad8 (15... g6 $14 {is superior.}) 16. Ne4 $16 {[#]} f5 $146 (16... Ng6 $14) ({Predecessor:} 16... Ng6 17. Rad1 Rf8 18. h3 Bxe2 19. Bxe2 Nhf4 20. Bc4 Kh8 21. Rf3 f6 22. exf6 gxf6 {1-0 (41) Ivanchuk,V (2735)-Jussupow,A (2625) Brussels 1991 Candidates [Jussupow,A]}) 17. Nd6 $18 Rxd6 18. exd6 Qxd6 19. Qc4+ Kh8 {[#]} 20. Rae1 $1 Nf6 (20... g6 $142 21. Qf7 Rd8) 21. Ng3 {Threatens to win with Rxe8.} ({And not} 21. Bxf5 Bxf5 22. Rxf5 Ng4 $17) 21... Rd8 (21... Rxe1 {is a better defense.} 22. Rxe1 f4) 22. Bxf5 h5 23. Qc5 Qxd4+ 24. Qxd4 Rxd4 25. Bxg4 hxg4 26. Re7 Rd2 (26... Rb4 {was necessary.} 27. Nf5 Rxb2 28. Nxg7 Ng6) 27. Rxb7 Ng6 28. Nf5 Nh5 29. Rb4 {To avoid Ngf4} Ne5 30. Re4 Nd3 31. Rxg4 Rxb2 32. Ne7 {Strongly threatening Rh4.} Kh7 (32... Re2 $142 33. Nxc6 Kh7) 33. Rh4 {[%cal Rh4h5]} Kh6 34. g4 {[%csl Gg4][%cal Rh4h5]} g6 35. gxh5 (35. Rh3 $142) 35... Kg5 {[#]} 36. Rh3 (36. hxg6 $142 $1 Kxh4 (36... Rb8 37. g7) 37. g7 Rb8 38. Rf8 Rb1+ 39. Kg2 Rb5 40. Rh8+ Kg4 41. g8=Q+ Rg5 42. Qc4+ Nf4+ 43. Kf2) 36... Nf4 37. Rg3+ {White took control after the opening.  Weighted Error Value: White=0.11 (very precise) /Black=1.04} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.11"]
[White "Abhrojyoty Nath"]
[Black "Poormosavi, Seyed Kian"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "1628"]
[BlackElo "2229"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,20,25,6,20,21,26,21,21,14,18,18,39,25,20,28,29,20,43,34,64,71,79,79,79,84,81,81,94,83,121,113,120,109,99,32,46,-165,-170,-268,0,-124,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29,-220,-222,-215,-136,-130,-133,-138,-118,-197,-187,-285,-228,-223,-223,-258,-265,-412,-398,-490,-491,-484,-461,-421,-298,-601,-601,-570,-562,-532,-490,-590,-589,-662,-546,-682,-499,-802,-788,-575,-390]} 1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. e3 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 {E10: Blumenfeld Gambit.} d6 7. a3 a5 {[#]} 8. Nb1 $146 {White has an edge.} ({Predecessor:} 8. Be2 O-O 9. O-O e5 10. h3 Bf5 11. Rc1 Re8 12. Re1 h6 13. Bf1 Nd7 14. Qb3 {1-0 (46) Mirzoev,A (2430)-Vlassov,N (2294) Chess.com INT 2021}) 8... O-O 9. Nc3 Qe7 10. Be2 Nb8 11. b4 b6 12. O-O Bb7 13. Nd2 e5 14. Bf3 e4 15. Be2 c5 16. bxc5 bxc5 17. d5 Bc8 18. Rb1 Bf5 19. Qc2 Bg6 20. Rb5 Nbd7 21. Rfb1 Qe5 22. Nb3 (22. Rb7 $16) 22... Qg5 $1 $14 23. Rxa5 $2 (23. Nxa5 Ne5 24. Nc6 Nf3+ 25. Bxf3 exf3 26. Ne7+ Kh8 27. Nxg6+ fxg6 $15) (23. Rb2 $14 {stays ahead.}) 23... Ne5 $19 {Strongly threatening ...Nf3+.} 24. h3 (24. g3 $142 Nf3+ 25. Kg2) 24... Bf5 $2 (24... Nf3+ $19 25. Kh1 Ng4 $1) 25. Kf1 (25. Rxa8 $11 {remains equal.} Rxa8 26. Kh1) 25... Nf3 {Black is more active.} 26. Rxa8 $11 (26. gxf3 $2 exf3 27. Qd1 (27. Bd3 $2 Qg2+ 28. Ke1 Qg1+ 29. Kd2 Qxf2+ 30. Kd1 Qg1+ 31. Kd2 Qf2+ 32. Kd1 Qg1+ 33. Kd2 Qg2+ 34. Ne2 Bxd3 $19) 27... Qg2+ 28. Ke1 fxe2 29. Qxe2 Bxb1 30. Nxb1 Qxh3 $19) 26... Rxa8 27. Nd2 $1 {[%cal Bb3d2,Bd2e4,Be4g5][%mdl 32]} (27. gxf3 exf3 28. Bd3 Bxh3+ 29. Ke1 Qg1+ 30. Kd2 Qxf2+ 31. Kc1 Qxe3+ 32. Qd2 (32. Kb2 f2 $17) 32... Qg1+ 33. Kb2 Qg3 $17) 27... Ng4 $40 {[%cal Rg4h2,Bf6g4,Bg4e5,Be5c4,Bc4d6][%mdl 160] Black mounts an attack.} 28. gxf3 (28. hxg4 $2 Qh6 $1 29. Bxf3 exf3 30. gxf3 Bxc2 $19) 28... exf3 29. Nde4 ({Avoid the trap} 29. Nxf3 $2 Nh2+ $1 {[%mdl 512]} 30. Nxh2 Bxc2 $19) 29... fxe2+ (29... Nxe3+ $2 30. fxe3 Qxe3 {[#]} 31. Nf6+ $1 {[%mdl 512]} gxf6 32. Qxf5 $18) 30. Kxe2 Ne5 {[%mdl 64] aiming for ...Qh5+. Discovered Attack} 31. Nxg5 {Pair of Knights!} Bxc2 32. Rb7 {[%cal Oa3a4]} h6 33. f4 Nxc4 $19 ({Don't do} 33... hxg5 34. fxe5 dxe5 35. e4 $16) 34. Nxf7 Rf8 ({Weaker is} 34... Rxa3 35. Nb5 Rxe3+ 36. Kf2 $17) 35. Nxd6 Nxd6 36. Rc7 c4 37. Kd2 (37. Rc6 $17 {was called for.} Ne4 38. Rxc4 Nxc3+ 39. Rxc3) 37... Bd3 38. Rd7 (38. Rc6 $142 Ne4+ 39. Nxe4 Bxe4 40. Rxc4 Bxd5 41. Ra4) 38... Ne4+ 39. Nxe4 Bxe4 {[%mdl 4096] Endgame KRB-KR} 40. Kc3 Bf5 41. Re7 (41. Rc7 {is a better defense.} Re8 42. Kb4) 41... Bxh3 42. Kxc4 h5 43. d6 Rd8 {Threatens to win with ...h4.} 44. Kd5 Bd7 {White must now prevent ...h4.} 45. Re5 $2 (45. Ke4) 45... g6 {Black is clearly winning.} 46. Rg5 Kf7 47. e4 Kf6 {To avoid f5} 48. Rg2 Ra8 49. Kc5 Rxa3 50. Rc2 Ra6 51. e5+ (51. Rb2 $142 Ra5+ 52. Kd4) 51... Kf5 {( -> ...Rc6+)} 52. Rg2 Be8 {Weighted Error Value: White=0.52/Black=0.21 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.12"]
[White "Dutta Samaritan"]
[Black "Franco Valencia, Angela"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1602"]
[BlackElo "2116"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,110,0,10,0,16,2,-8,-10,12,16,10,9,8,17,14,0,0,8,4,0,-9,0,72,0,0,0,8,7,2,5,4,3,89,86,99,89,87,4,87,11,11,13,13,12,12,12,12,12,16,0,0,0,0,0,0,-114,-95,-116,-116,-106,-112,-109,-106,-107,-26,-26,-26,-316,-316,-731,-664,-320,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,399]} 1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. d3 Nc6 5. Bg2 g6 6. O-O Bg7 7. Nbd2 O-O 8. Re1 Qc7 9. c3 Rb8 10. a4 {A05: Réti Opening: 1 Nf3 Nf6.} a6 11. d4 cxd4 12. Nxd4 {[#]} Nxd4 $146 ({Predecessor:} 12... Bd7 13. Nf1 Nxd4 14. cxd4 Rfc8 15. e5 dxe5 16. dxe5 Ne8 17. Bf4 Be6 18. Rc1 Qd8 {½-½ (44) Szenetra,W (2179)-Van Dongen,R (1968) Bad Sooden-Allendorf 2012}) 13. cxd4 Bg4 14. Nf3 Rbc8 15. h3 Bd7 16. Bd2 d5 17. e5 Ne4 18. Bb4 Qc2 19. Nd2 Qxb2 (19... Nxd2 $11 20. Qxd2 Qxd2 21. Bxd2 Rc4) 20. Nxe4 (20. Rb1 $16 Qa2 21. Nxe4 dxe4 22. Bxe4) 20... Qxb4 $11 21. Nc5 $36 {[%mdl 2048] White has the initiative.} Bf5 {aiming for ...b6.} 22. g4 Be4 23. Bxe4 dxe4 24. Rb1 Qc4 (24... Qc3 $11 {keeps the balance.}) 25. Nd7 $1 $16 (25. Rxb7 Rfd8 26. Qb3 (26. Rxe4 $2 Qxc5 27. dxc5 Rxd1+ $19) 26... Rxd4 27. Qxc4 Rxc4 28. Nxe4 R4c7 $11) (25. Nxb7 f5 $15) (25. Nxe4 Rcd8 $15) 25... Rcd8 26. Nxf8 {White is more active.} (26. Rc1 {with more complications.} Qd3 27. Nxf8 Bh6 28. Nxg6 fxg6 29. Qxd3 exd3 30. Rc7) 26... Rxd4 27. Qb3 (27. Qc1 $16 {Threatens to win with Qxc4.} Qd5 28. e6 $1 (28. Nxg6 hxg6 29. Qc8+ Kh7 $16) 28... Bxf8 29. exf7+ Kxf7 30. a5) 27... Kxf8 {[#]} (27... Qxb3 $11 {remains equal.} 28. Rxb3 Kxf8) 28. Qxc4 ({But not} 28. Qxb7 $6 Bxe5 29. Rbc1 Qe6 $11) (28. Rbc1 $1 $16 Qe6 29. Rc5 $1 (29. Qxb7 Bxe5 30. Qc8+ Qxc8 $11)) 28... Rxc4 $11 29. Rec1 Rxc1+ 30. Rxc1 {[%cal Rc1c8]} Bxe5 {[%mdl 4096] Endgame KR-KB} 31. Rc4 b5 32. Rxe4 Bc3 33. axb5 axb5 {[%cal Ba6b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 34. Re3 b4 35. Kf1 Bd4 36. Re4 (36. Rd3 $11 e5 37. Rb3) 36... e5 $17 37. Re1 b3 38. Ke2 {[#]} b2 $1 39. f3 Ke7 40. Kd3 f5 (40... Ke6 $17) 41. gxf5 $11 gxf5 42. f4 $2 {[%mdl 8192]} (42. h4 $11 {and White stays safe.}) 42... Kf7 $19 43. fxe5 $2 {[#]} (43. Kc4 Be3 44. Kb3) 43... Bxe5 $1 {[%mdl 512]} 44. Ke3 (44. Rf1 Ke6) 44... Bg7 $2 (44... Ke6 $19 45. Rd1 Bf6) 45. Kd3 {The position is equal.} Bh6 46. Kc2 Bc1 47. Rd1 Kg6 48. Rd7 h6 49. Rb7 Kg5 50. Kd1 Kh4 51. Rb3 f4 52. Ke2 Kg5 53. Kf3 Kf5 54. Rb5+ Ke6 55. Rxb2 Ke5 $2 {[%mdl 40960] What a bad dream for Black.  Weighted Error Value: White=0.32/Black=0.28 (precise) . An unexpected result.} (55... Bxb2 $11 {and Black is okay.} 56. Kxf4 h5) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.13"]
[White "Batsah Arindom"]
[Black "Muhammed, Shuaau"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1360"]
[BlackElo "1970"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,76,-5,-20,0,-7,-2,-14,-18,-46,-20,-32,-20,-45,-45,-48,-46,-42,-28,-33,-24,-7,-16,-6,-15,-21,0,0,0,0,215,-35,-33,-35,-39,-39,-36,-35,0,0,22,-47,-33,-106,-79,-75,-83,-83,-79,-79,-73,-123,-117,-284,-269,-278,-291,-284,-281,-29995,-29996]} 1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. Nc3 c5 5. d4 Nc6 6. Be2 Be7 7. O-O O-O 8. a3 dxc4 9. Bxc4 cxd4 10. Nxd4 Nxd4 {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} 11. exd4 Qc7 12. Ba2 {[#]} Rd8 $146 {The position is equal.} ({Predecessor:} 12... b6 13. Bg5 Bb7 14. Rc1 Qd7 15. Qd3 Rfd8 16. Rfd1 Nd5 17. Bb1 g6 18. Bh6 Rac8 {½-½ (55) Hj Matnor,H-Righi,E (2205) Manila 1992}) 13. Bg5 h6 14. Be3 Bd7 15. Rc1 {[%cal Oc3d5]} Bc6 {To avoid Nd5} 16. Qe2 Qd7 17. Rfd1 Nd5 (17... Bd6 {is more complex.} 18. Qd2 Qe7 19. h3 Rac8 20. Bb1 Kf8) 18. Qg4 Nxe3 19. fxe3 Bg5 {A strong pair of Bishops.} 20. Re1 Rac8 21. Rcd1 Bf6 22. Rf1 {And now Rxf6 would win.} Qe7 23. Ne4 Bg5 {[#]} (23... Bh4 $11) 24. Rf3 $2 (24. Rxf7 $1 $18 {[%mdl 512]} Kxf7 25. Nxg5+ hxg5 26. Rf1+ Ke8 27. Qh5+ (27. Bxe6 Rd6 $17) 27... Kd7 28. Rf7) 24... Bd5 $15 25. Bxd5 exd5 26. Nxg5 Qxg5 27. Qh3 Rc6 28. Rdf1 $1 Qe7 29. Kh1 ({White should try} 29. Rxf7 $11 Qxf7 30. Rxf7 Kxf7 31. Qh5+ Kg8 32. Qe5) 29... Rc2 30. Rg3 (30. Kg1 $15) 30... Kh8 ({Reject} 30... Qf6 31. Rgf3 Qg6 32. Kg1 $15) 31. Qg4 {[%csl Gg3][%cal Rg4g7]} f6 {Active counter play!} 32. Rb1 Rdc8 {[%cal Bd8c8,Bc8c7,Bc7c2][%mdl 32] Strongly threatening ...Rc1+.} 33. h3 R8c7 $36 {[%mdl 2048] Black is on the roll.} 34. Qf5 {[#]} (34. Kh2 $142) 34... Qe4 $1 $17 35. Qh5 {[#] White does not recover from this.} (35. Qxe4 $17 {was necessary.} dxe4 36. Rg4) 35... Rxg2 $3 $19 {[%mdl 512]} 36. Rxg2 Qxb1+ 37. Kh2 Qe4 38. Rg4 $2 (38. Qe2 $19) 38... Rc2+ {Weighted Error Value: White=0.56/Black=0.21 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.14"]
[White "Aditya P Melani"]
[Black "Visakh N R"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "1852"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "240"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,240,0,12,6,14,3,2,-19,0,0,27,22,39,-8,0,-122,-117,-114,-123,-129,-152,-233,-208,-244,-226,-284,-281,-224,-221,-314,-286,-327,-328,-311,-236,-219,-213,-244,-160,-178,-155,-168,-159,-152,-144,-178,-131,-173,-127,-156,-68,-87,-81,-107,-86,-90,-64,-67,17,20,5,9,62,39,21,19,229,232,243,236,239,234,213,0,4,0,106,0,0,0,0,0,0,0,0,0,0,-12,0,0,0,-12,-12,-12,-12,-161,-12,-160,-12,-189,-12,-167,0,-709,-20,-29983,-183,-167,-12,-1633,-100,-189,-189,-189,-135,-189,-121,-29981,-29973,-29985,-121,-29979,-29974,-29973,-121,-121,-121,-29975,-29975,-29967,-121,-1472,-182,-182,-121,-29968,-29967,-29962,-121,-182,-121,-121,-121,-121,-121,-182,-121,-182,0,-182,-121,-182,-121,-121,-121,-121,-121,-121,-121,-121,-121,-29969,-121,-121,-121,-121,0,-121,-121,-121,-121,-121,-121,-121,-121,-121,-121,-121,0,-121,-12,-121,-121,-121,-9,-9,0,0,0,0,29989,-12,-8,-12,-12,-12,-12,-12,-11,-20,-11,-12,-11,-11,-11,-11,-11,-11,-11,-11,-11,-11,8,-11,-11,-12,-12,-12,-12,-12,-11,-12,-12,-28,-28,-28,-24,-24,0,-40,-24,-40,-36]} 1. c4 e5 2. g3 c6 3. d4 e4 4. Nc3 d5 5. Bg2 Nf6 6. Bg5 {A20: English Opening: 1...e5.} Nbd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]} 7. cxd5 cxd5 8. Rc1 {The position is equal.} Be7 9. Qb3 O-O 10. Nh3 Nb6 11. O-O {[#]} (11. Nf4 $14 {might be stronger.}) 11... h6 $146 ({Predecessor:} 11... Bd7 12. f3 exf3 13. Rxf3 h6 14. Bf4 Rc8 15. Rcf1 Bg4 16. Rd3 Qd7 17. Nf2 Be6 {0-1 (49) Blodig,R (2211)-Bernasek,J (2381) Marianske Lazne 2004}) 12. Bf4 (12. Bxf6 $11 {remains equal.} Bxf6 13. Nf4) 12... g5 $1 $17 13. Be5 Ne8 14. Nb5 Nc4 {Threatens to win with ...Nd2.} 15. f3 (15. Nc3 $17 {keeps fighting.}) 15... exf3 16. exf3 (16. Qxf3 Nxe5 17. dxe5 Qb6+ 18. Nf2 Qxb5 $19) 16... f6 $1 17. Rxc4 dxc4 18. Qxc4+ Kg7 19. Bc7 (19. Nc7 $142) 19... Qd7 $1 $19 {And now ...a6 would win.} 20. Ba5 b6 21. Bc3 Ba6 22. a4 Nd6 23. Qd5 Rad8 {Hoping for ...Bb7.} (23... Bxb5 24. axb5 Qxb5 25. Qe6 $17) 24. Nxd6 Bxd6 25. Ra1 Rfe8 {aiming for ...Re2.} 26. Nf2 {[%cal Bh3f2,Bf2d1,Bd1e3,Be3f5][%mdl 32]} Bb7 27. Qb3 Qe6 (27... Bb8 $19 28. Qc2 Bd5) 28. Qb5 (28. Qxe6 $17 {was called for.} Rxe6 29. Ne4) 28... Qd5 (28... h5 $19 29. Ne4 Bd5 30. Nxd6 Qxd6) 29. Qd3 a6 (29... h5 $17 {[%cal Og5g4] White must now prevent ...g4!} 30. Ne4 Bc7) 30. Nd1 Qe6 {Prevents Ne3.} 31. Kf2 Bc8 32. Ne3 Qf7 33. Bf1 Re7 (33... a5 $15) 34. Nf5+ $1 $11 Bxf5 35. Qxf5 Rh8 (35... a5 $11) 36. h4 a5 37. Bd3 Bb4 $2 (37... Kf8 $11) 38. Bxb4 $18 axb4 39. a5 $1 bxa5 40. Rxa5 Rd7 {[#]} 41. d5 (41. Bc4 $1 $18 {[%mdl 512]} Qe7 (41... Qxc4 42. Qxd7+) 42. h5) 41... b3 42. Rb5 {[%cal Oh4h5]} Re7 (42... Rhd8 $1 $11) 43. d6 (43. Rxb3 Re5 44. Rb7 Rxf5 $17) (43. f4 $1 $16) 43... Re5 $1 $11 ({Don't take} 43... Re6 44. hxg5 (44. Rd5 Re5 $11) 44... hxg5 45. Be4 Rxe4 46. Qxe4 Qa7+ 47. Kg2 $16) 44. Rxe5 fxe5 45. Qxe5+ {[%mdl 4096] Endgame KQR-KQB} Qf6 46. Qe4 Qxd6 47. Qb7+ Kf6 48. Qxb3 Rc8 49. Qb5 {Strongly threatening Qf5+.} Rc5 {Prevents Qf5+.} 50. Qa6 {[#]} Rc2+ $1 51. Ke3 {Really sharp!} Qxa6 52. Bxa6 {KR-KB} (52. hxg5+ $1 $11 Kxg5 53. Bxa6) 52... Rg2 ({Weaker is} 52... Rxb2 53. hxg5+ Kxg5 54. Be2 $17) (52... gxh4 $1 $19 53. gxh4 Rh2) 53. Bf1 (53. hxg5+ $11 {keeps the balance.} Kxg5 54. b4) 53... Rxb2 ({Black should play} 53... Rxg3 $17 54. hxg5+ Rxg5) 54. Bh3 (54. hxg5+ $11 {and White has nothing to worry.} Kxg5 55. Be2) 54... Ra2 $2 (54... gxh4 $19 55. gxh4 Rh2) 55. Bg4 $2 (55. hxg5+ $11 {and White is okay.} Kxg5 56. f4+ Kg6 57. Bf1) 55... Rb2 $2 (55... gxh4 $1 $19 56. gxh4 Rh2) 56. Ke4 $2 {[%mdl 8192]} (56. Bh3 $11) 56... Rb3 $2 (56... Re2+ $19 57. Kd3 Rg2) 57. Be6 $2 {[%mdl 8192]} Ra3 $2 (57... Kxe6 58. h5 Ra3 59. g4 Rb3 60. f4 Rb4+ 61. Kd3 gxf4 62. g5 hxg5 63. Ke2 Rb2+ 64. Kd3 f3 65. Kc3 Rb1 66. h6 f2 67. h7 f1=Q 68. h8=Q Qc1+ 69. Kd4 Qd2+ 70. Ke4 Re1+ 71. Kf3 Qf4+ 72. Kg2 Re2+ 73. Kh3 Rh2#) 58. Bd7 $19 Ra7 $2 (58... gxh4 $19 59. gxh4 Ra7) 59. Bb5 $2 {[%mdl 8192]} (59. hxg5+ $11 Kxg5 60. f4+ Kf6 61. Bb5) 59... Rb7 $2 (59... Re7+ $19 60. Kd4 gxh4 61. gxh4 Re1) 60. Bd3 (60. hxg5+ $17 Kxg5 61. Bc6 Re7+ 62. Kd3) 60... Re7+ 61. Kd4 Re1 (61... gxh4 $19 62. gxh4 Re1) 62. Be4 (62. hxg5+ $17 {only move.} hxg5 63. Bh7) 62... Rg1 (62... Rd1+ $19 63. Ke3 gxh4 64. gxh4 Rh1) 63. g4 $2 {[%mdl 8192]} (63. hxg5+ $17 hxg5 64. g4) 63... Rd1+ 64. Bd3 Ra1 $2 (64... gxh4 65. f4 Rxd3+ $1 {[%mdl 512]} 66. Kxd3 h3 67. Kd4 h2 68. Ke3 h1=Q 69. Ke2 Qg2+ 70. Ke3 Qxg4 71. Kd4 Qxf4+ 72. Kc3 h5 73. Kc2 h4 74. Kb2 h3 75. Kc3 h2 76. Kb3 h1=Q 77. Kc2 Qc4+ 78. Kd2 Qhc1#) 65. Kd5 $2 {[%mdl 8192]} (65. hxg5+ $17 hxg5 66. Bc2) 65... Ra5+ 66. Kd4 Ke6 $2 (66... gxh4 67. Be4 Ra3 68. f4 h3 69. Bc6 h2 70. Bd5 Rh3 71. Bc4 h1=Q 72. g5+ hxg5 73. fxg5+ Ke7 74. Kc5 Qe4 75. Ba6 Rb3 76. Bf1 Qe5+ 77. Kc4 Rc3+ 78. Kb4 Qc5+ 79. Ka4 Ra3#) 67. Bc4+ Kd6 68. Bd3 $2 {[%mdl 8192]} (68. hxg5 $17 hxg5 69. Bg8) 68... Ra4+ 69. Ke3 Ke5 $2 (69... gxh4 70. Bf1 Ke5 71. Kf2 Ra2+ 72. Ke3 Ra3+ 73. Kf2 Kf4 74. Kg2 Rxf3 75. Bb5 h3+ 76. Kh2 Kg5 77. Bd7 Ra3 78. Bc8 Kh4 79. Kg1 Rf3 80. g5 hxg5 81. Bb7 Rf4 82. Ba6 Kg3 83. Be2 h2+ 84. Kh1 Rf2 85. Bc4 Rg2 86. Bg8 Rg1#) 70. Be4 $2 {[%mdl 8192]} (70. hxg5 $17 hxg5 71. Be4) 70... Ra3+ $2 (70... gxh4 71. f4+ Kd6) 71. Kf2 Kf4 ({Better is} 71... gxh4 $19 {( -> ...Ra2+)} 72. Kg2 Kf4) 72. Kg2 $2 {[%mdl 8192]} (72. hxg5 $17 Ra2+ 73. Kf1 hxg5 74. Bd5) 72... Ra2+ 73. Kh3 Rd2 $2 (73... h5 $1 74. Bd5 hxg4+ 75. fxg4 Ra3+ 76. Kh2 gxh4 77. g5 Kxg5 78. Be6 Re3 79. Bd7 Kf4 80. Bc8 Ra3 81. Be6 Ke5 82. Bg4 Rd3 83. Bc8 Kf4 84. Kg2 Rg3+ 85. Kh2 Rd3 86. Kg2 Ke4 87. Kh2 Kf4) 74. Bc6 (74. hxg5 $17 hxg5 75. Bc6) 74... Ke3 (74... gxh4 $19 75. Bb7 Rd1) 75. Kg3 Rd4 76. Bb7 Rd1 77. Kg2 (77. hxg5 $17 {was necessary.} hxg5 78. Kg2) 77... Kf4 (77... gxh4 $19 78. Kh2 Kf4) 78. Bc6 (78. hxg5 $17 hxg5 79. Be4) 78... Rd2+ ({Avoid the trap} 78... gxh4 $2 79. Bb7 $19) 79. Kh3 Rc2 (79... gxh4 $19 80. Bb7 Rd1) 80. Bd5 {[#]} (80. Be4 $17 Rd2 81. hxg5 hxg5 82. Bc6) 80... Rb2 (80... gxh4 $1 $19 81. Be4 Rc1) 81. hxg5 $17 hxg5 82. Be4 Rd2 83. Bc6 Ke3 84. Kg3 Rf2 85. Kh3 $2 {[%mdl 8192] [#]} (85. Be4 $17) 85... Kf4 $2 (85... Ke2 $1 86. Kg3 Kf1 87. Bb5+ Kg1 88. f4 Rxf4 89. Bd7 Rc4 90. Kf3 Kh2 91. Bf5 Rf4+ 92. Ke2 Kg3 93. Kd2 Rxg4 94. Be6 Rb4 95. Bg8 g4 96. Be6 Kh2 97. Kc3 Rf4 98. Bd5 g3 99. Kd3 g2 100. Ke3 Rh4 101. Bxg2 Kxg2 102. Ke2 Rh3 103. Ke1 Kf3 104. Kd2 Kf2 105. Kc1 Ke1 106. Kc2 Ke2 107. Kc1 Kd3 108. Kb2 Kd2 109. Ka1 Kc2 110. Ka2 Rb3 111. Ka1 Ra3#) 86. Be4 Ra2 87. Bd5 Rb2 88. Be4 Ke3 89. Kg3 Ra2 90. Bd5 Ra1 91. Kg2 {Prevents Rg1+.} Rd1 92. Bb7 Rd2+ 93. Kg3 Rb2 (93... Rf2 $17 94. Be4 Rd2) 94. Bc6 (94. Be4 $11) 94... Kd4 (94... Rb4 $17 95. Be4 Rc4) 95. Ba8 (95. f4 $1 $11 {was the only way to keep the balance.}) 95... Ra2 96. Bb7 Kc3 ({Black should try} 96... Ra3 $17 97. Be4 Ke3) 97. f4 $1 $11 gxf4+ 98. Kxf4 Kd4 99. Bf3 $1 Ra8 $2 {[%mdl 8192]} 100. g5 $2 (100. Bxa8 {mates} Kc5 101. Ke5 Kc4 102. g5 Kb4 103. g6 Kc3 104. g7 Kc4 105. g8=Q+ Kc5 106. Qd5+ Kb4 107. Kd4 Ka3 108. Kc3 Ka4 109. Bc6+ Ka3 110. Qb3#) 100... Rg8 101. Kg4 Ke5 102. Bd1 Rd8 103. Bf3 Ke6 104. Kh5 Kf7 105. g6+ Kg7 106. Kg5 Rd6 107. Be4 Ra6 108. Bd3 Ra5+ 109. Kf4 Kf6 110. Ke3 Ke5 111. Kd2 Ra2+ 112. Kc3 Ra3+ 113. Kd2 Kd4 114. Bf5 Ra2+ 115. Kc1 Rg2 116. g7 Rxg7 117. Kb2 Ke5 118. Bb1 Kd4 119. Ka1 Ra7+ 120. Ba2 Kc3 {What a fight!  Weighted Error Value: White=0.72/Black=0.72} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.15"]
[White "Kolomwe Willian"]
[Black "Karthik Venkataraman"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1783"]
[BlackElo "2485"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,6,17,0,0,0,0,0,13,0,0,-25,0,-19,0,-6,0,-151,-141,-133,-134,-196,-181,-182,-168,-205,-203,-200,-209,-257,-257,-271,-281,-304,-300,-295,-271,-262,-276,-256,-266,-410,-390,-448,-438,-579,-572,-529,-528]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Bd7 5. Qc2 Qc7 6. d3 {B50: Sicilian: 2...d6, Miscellaneous.} g6 {[#]} 7. h3 $146 ({Predecessor:} 7. Nbd2 Bg7 8. Nf1 O-O 9. Ng3 e5 10. h4 h6 11. h5 g5 12. Nxg5 hxg5 13. h6 {0-1 (34) Klyashtorny,V (2403)-Erdogdu,M (2407) Chess.com INT 2021}) 7... Bg7 8. Be3 {The position is equal.} O-O 9. Nbd2 e5 10. Nf1 Nh5 11. Qd2 f5 12. exf5 gxf5 {...f4 is the strong threat.} 13. Nxe5 $2 {White is now going downhill.} dxe5 $17 14. Bxh5 f4 15. Qe2 (15. Bf3 $17) 15... fxe3 $19 16. Nxe3 Nc6 17. O-O Ne7 18. Rfe1 Kh8 19. Rad1 Rad8 20. a3 Ba4 21. Rd2 Bc6 22. Nc4 {[#]} Bxg2 $1 {[%mdl 512]} 23. Kxg2 {[#]} Nd5 {Strongly threatening ...Nf4+.} 24. Kf1 Nf4 {[%csl LRe2,LRh3]} 25. Qg4 (25. Qf3 $142) 25... b5 26. Ne3 Qc6 {And now ...Qh1+ would win. Black is clearly winning.} 27. Ng2 (27. Kg1 Rg8 28. Qf3 (28. Bf7 $2 Bf6 $19) 28... Bh6+ 29. Kf1 e4 30. dxe4 Rxd2) 27... Nxg2 28. Qxg2 Qh6 $1 {[%csl LRd2,LRh5] Weighted Error Value: White=0.42/Black=0.03 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.16"]
[White "Priyanka, Kumari"]
[Black "Farooq, Noor"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1910"]
[BlackElo "1693"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,53,39,54,53,52,45,40,41,66,66,58,52,185,193,185,179,180,184,206,86,83,98,327,339,2964,2943,29991,0,29992,29993,29993,29994,29994,29995,29995,29996]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. O-O Ngf6 8. Qe2 Be7 9. Nxf6+ Nxf6 10. Rd1 O-O 11. Ne5 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} Qd5 {[%csl Gc6][%cal Rd5g2]} 12. Nxc6 {Active counter play!} Qxc6 13. c4 {[%cal Bc2c4,Bc4c5][%mdl 32] White is slightly better.} Rfe8 14. Bf4 Rad8 15. Be5 {[#]} Qb6 $146 (15... Qd7 $14) ({Predecessor:} 15... a6 16. Rac1 Rd7 17. Rc3 b6 18. Bc2 Qb7 19. Rh3 h6 20. Rg3 Kf8 21. Rdd3 Bd6 22. f4 c6 23. Rxg7 Ke7 24. f5 Bxe5 25. dxe5 Ng8 26. f6+ Kd8 27. Rxf7 {1-0 (27) Norgaard,J (2320)-Busto,B Mexico City 1993}) 16. c5 $1 $18 Qa5 17. b4 $1 Qxb4 18. Rab1 {[%mdl 64] Skewer} Qa5 19. Rxb7 (19. Rb5 $1 $18 {[%cal Rb5a5]} Qa6 20. Rdb1 (20. Bxc7 Rxd4 21. Bxh7+ Nxh7 $16)) 19... Nd5 $16 20. Rb5 $36 {[%mdl 2048] Keeping Black busy.} Qa3 {[#]} (20... Qa4 $16 21. Rb3 Rb8) 21. Rb3 $1 $18 {[%cal Bb5b3,Bb3g3,Bg3h3][%mdl 32]} Qa5 {[#]} (21... Qa4 22. Bb5 Qa5) 22. Bxh7+ $1 {[%mdl 512]} Kxh7 (22... Kf8 23. Bxg7+) 23. Qh5+ ({Don't blunder} 23. Qg4 $2 Bf6 24. Rh3+ Kg8 $19) 23... Kg8 {[#] And now ...Bf6 would win.} 24. Bxg7 {[%mdl 576] Decoy. White mates.} Kxg7 (24... Qe1+ 25. Rxe1) 25. Rg3+ Bg5 26. Qxg5+ Kf8 27. Rh3 {Weighted Error Value: White=0.07 (flawless) /Black=0.78} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.17"]
[White "Deepan Chakkravarthy J."]
[Black "Ghimire, Arjun"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2520"]
[BlackElo "1838"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,79,45,67,69,90,30,68,69,99,107,92,89,97,105,103,91,102,82,114,91,75,88,84,66,103,52,133,28,102,105,108,93,144,141,154,140,141,135,192,176,365,368,432,468,577,566,640,643,622,592,631,626,602,618,689,679,683,668,801,784,789,762,785,736,833,878,881,881,851,827,1327,937]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. e3 d6 5. d4 Bg4 6. Be2 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} e6 7. O-O (7. d5 $16 Bxf3 8. gxf3 (8. Bxf3 exd5 9. Nxd5 Nxd5 $14)) 7... Be7 8. h3 {White is slightly better.} Bf5 {[#]} 9. Nh4 $146 ({Predecessor:} 9. b3 O-O 10. Bb2 Qc8 11. Qd2 Rd8 12. d5 exd5 13. Nxd5 Nxd5 14. Qxd5 Qe6 15. Rfd1 Qxd5 16. Rxd5 {0-1 (46) Kreutzmann,D (1633)-Geerling,A (2026) Goch 2014}) 9... Bg6 10. d5 exd5 11. Nxg6 ({Don't play} 11. cxd5 $6 Nxd5 12. Qxd5 Bxh4 $11) 11... hxg6 12. cxd5 Nb8 13. e4 O-O 14. f4 Nfd7 {Inhibits e5.} 15. Be3 a6 16. a4 {White is more active.} Bf6 17. Bd3 ({White should try} 17. Qc2 $16) 17... Re8 {[#]} (17... Bd4 $14 18. Bf2 Nf6) 18. Kh1 (18. e5 $1 $16 {[%cal Re5e6]}) 18... Bxc3 (18... Bd4 $11 {keeps the balance.} 19. Bf2 Nf6) 19. bxc3 $16 {White stays focused until the end.} Nf6 20. Qf3 $36 {[%mdl 2048] White is on the roll.} Qe7 (20... Nbd7 $142) 21. Rfe1 Nbd7 {[%cal Rf6e4,Bb8d7,Bd7c5,Bc5d3][%mdl 32]} 22. Bf2 c4 23. Bc2 ({Much weaker is} 23. Bxc4 $6 Nxe4 24. Bd4 Rac8 $14) 23... Rac8 (23... Qd8 $16 24. Rab1 Qc7) 24. Bd4 $18 Qf8 $2 (24... Nc5 {might work better.} 25. e5 Nd3) 25. e5 Nh7 26. e6 {White is clearly winning.} Nc5 27. Qg4 {[#] aiming for exf7+.} Nd3 28. e7 Rxe7 29. Rxe7 Nf6 30. Qe2 Nxf4 31. Qe1 N6xd5 32. Rxb7 Re8 33. Qf1 Nh5 {Threatens to win with ...Ng3+.} 34. Kh2 {Prevents Ng3.} Ne3 35. Bxe3 Rxe3 36. Rab1 d5 37. Rb8 Re8 38. Rxe8 Qxe8 39. Qe1 Qc6 40. Qe5 {Weighted Error Value: White=0.13 (very precise) /Black=0.37} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.18"]
[White "Gajanan Vijay Jayade"]
[Black "Stany, G.A."]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1823"]
[BlackElo "2517"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,-10,-12,-17,-11,-16,-23,-26,-15,-44,-42,-36,-21,-20,-16,-43,-37,-40,-49,-41,-41,-65,-41,-51,-49,-50,-52,-43,-44,-39,-38,-34,-27,-47,-50,-64,-64,-64,-63,-64,-68,-66,-61,-70,-71,-79,-41,-57,-60,-76,-19,-19,-22,-25,-21,-14,-20,-52,-40,-63,0,-91,-107,-99,-95,-102,-106,-94,-69,-148,-8,-8,-8,-8,0,-34,-28,-38,-23,-21,-24,-24,-25,-50,-64,-299,-291,-282,-270,-247,-240,-628,-369,-593,-453,-445,-389]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 Nh5 4. Bg5 h6 5. Bh4 g5 6. Bg3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bg7 7. e3 Nxg3 8. hxg3 {Black has an edge.} c5 {[#]} 9. Be2 $146 ({Predecessor:} 9. c3 Qd6 10. Nbd2 Nc6 11. Be2 Bd7 12. a3 f5 13. dxc5 Qxc5 14. Nb3 Qd6 15. Nbd4 Nxd4 16. Nxd4 {½-½ (32) Ozkan,E (2244)-Savchenko,S (2571) Izmir 2007}) 9... Qb6 10. Nc3 cxd4 11. Nxd4 e6 12. O-O O-O 13. Na4 Qa5 14. c4 dxc4 (14... Bd7 {feels hotter.} 15. Nc3 dxc4 16. Bxc4 Rd8 17. Nb3 Qb6) 15. Bxc4 Rd8 {[%cal Ob7b5]} 16. Nb3 Rxd1 17. Nxa5 Rxa1 18. Rxa1 Bd7 19. Nc3 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 20. Nb3 Kf8 21. a4 a6 22. a5 b5 23. Be2 Ra7 24. f4 Rc7 25. Rc1 Ke8 26. Kf2 Kd8 27. Ke1 Bf8 28. Kd2 Nc6 29. Rh1 gxf4 (29... Be8 $17) 30. gxf4 $11 Bb4 31. Rxh6 Nxa5 32. Nxa5 (32. Nd4 {with more complications.} Nb7 33. f5 e5 34. Nf3 Bxc3+ 35. bxc3 Bxf5 36. Nxe5 Be6 37. Nd3) 32... Bxa5 33. Rh5 Ke7 (33... f5 $5 {[%cal Rb5b4]}) 34. g4 Bb6 (34... Bc6 $1 $15) 35. b4 {[#]} (35. Bd3 $11) 35... Bxe3+ $1 $17 36. Kxe3 {Ne4 is the strong threat.} Rxc3+ {[%mdl 4096] Endgame KRB-KRB} 37. Kd4 Rb3 38. Kc5 Re3 39. Rh2 ({Better is} 39. Re5 $1 $15 Rc3+ 40. Kb6) 39... Kd8 (39... Rc3+ $17 40. Kb6 Rb3) 40. Kd6 $1 $11 Be8 {Threatens to win with ...Re4.} 41. f5 $1 Re4 {aiming for ...exf5.} 42. fxe6 Rxe6+ 43. Kc5 Rc6+ 44. Kd4 $1 Rc2 45. g5 Ke7 46. Rf2 Bd7 {[%cal Od7g4] Hoping for ...Bg4!} 47. Rh2 $2 {[#] White does not recover from this.} (47. Rg2 $15) 47... Bg4 $1 $19 {[%mdl 512]} 48. g6 fxg6 ({Stronger than} 48... Bxe2 49. g7 Rc4+ 50. Ke3 $19) ({Don't play} 48... Rxe2 49. Rxe2+ Kf8 {[#]} 50. Re8+ $3 {[%mdl 512]} Kg7 51. gxf7 Kxf7 52. Ra8 $18) 49. Rh7+ Kf6 50. Bxg4 (50. Bd3 Rc6 51. Rh8) 50... Rc4+ {[%mdl 64] Skewer, Double Attack} 51. Kd3 $2 (51. Ke3 {only move.} Rxg4 52. Ra7) 51... Rxg4 52. Kc3 Rc4+ {Weighted Error Value: White=0.36/Black=0.13 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.19"]
[White "Iniyan, P."]
[Black "Tamhankar, Siddhant"]
[Result "1-0"]
[ECO "B58"]
[WhiteElo "2516"]
[BlackElo "1804"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,20,0,0,0,0,-46,-51,-75,-77,-65,0,0,0,0,7,0,0,0,67,16,33,0,21,0,25,0,82,75,81,73,103,85,95,101,104,67,102,92,126,131,189,123,124,90,145,145,178,178,189,179,191,181,186,164,164,164,176,154,316,235,235,235]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nf3 $1 {[%mdl 4] is more profitable than 7.Nb3 at the moment.} h6 8. Bc4 Be7 {B58: Classical Sicilian: 6 Be2.} 9. h3 O-O 10. g4 {[#]} (10. a3 $11) 10... Be6 $146 {Black is slightly better.} ({Predecessor:} 10... Qa5 11. Bd2 Qc5 12. Bb3 Nd4 13. Be3 Nxf3+ 14. Qxf3 Qa5 15. O-O-O Be6 16. g5 hxg5 17. Bxg5 Bxb3 18. Bxf6 Bxf6 19. cxb3 {½-½ (48) Hauseux,P (1923)-Stoeri,L (2066) Paris 2012}) 11. Bd5 Bxd5 (11... Nxd5 12. exd5 e4 13. Nh2 $16 (13. dxc6 exf3 14. cxb7 Rb8 $11) (13. Nxe4 f5 $14)) 12. exd5 Nd4 (12... Nb4 $15) 13. Nxd4 $11 exd4 14. Qxd4 Nd7 15. Be3 Bf6 16. Qb4 $36 {[%csl LRb7,LRd6][%mdl 2048] White has good play.} Nc5 ({Better is} 16... Rc8 $11) 17. O-O (17. Bxc5 dxc5 18. Qc4 (18. Qxc5 Rc8 $17) (18. Qxb7 $2 Rb8 $19) 18... Re8+ 19. Kf1 Bd4 $11) (17. O-O-O $14) 17... Rc8 18. Rad1 Re8 19. Kg2 Be5 (19... a5 $5 {[%cal Ra5b4]} 20. Qa3 h5 $11) 20. Bd4 h5 (20... a5 $11 21. Qb5 Bxd4 22. Rxd4 f5) 21. Bxe5 $16 Rxe5 22. Rfe1 {Hoping for Rxe5.} hxg4 23. hxg4 ({But not} 23. Qxg4 $6 Rg5 24. Re8+ Qxe8 $11) 23... Qe7 24. Rxe5 Qxe5 25. Qd4 Qe7 26. Rd2 {[%cal Bd1d2,Bd2e2,Be2e4,Be4e5,Be5e8,Be8e7,Be7f7,Bf7b7][%mdl 32]} Nd7 {[#]} 27. Re2 $1 Qh4 (27... Qg5 $16 {was called for.}) 28. Qf4 {Active counter play!} (28. Nb5 $18) 28... Ne5 {[%cal Of7f5]} 29. Re4 Qd8 {[#]} (29... f5 $142 30. gxf5 (30. Qxf5 Rf8 $11) 30... Qh5) 30. Nb5 $1 {[%cal Ob5d6]} Rxc2 {[#]} 31. Nxd6 $1 {[%mdl 512]} Qxd6 32. Rxe5 {[%mdl 4096] Endgame Strongly threatening Re8+. KQR-KQR} Qf6 33. Re8+ Kh7 34. Qxf6 gxf6 35. d6 {d7 would kill now.} Rd2 36. Re7 Rxd6 $2 (36... Rxb2 $16 37. Kf3 (37. Rxf7+ Kg6 $16) 37... Kg7) 37. Rxf7+ $18 Kg6 38. Rxb7 {Weighted Error Value: White=0.16 (very precise) /Black=0.34} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "2.20"]
[White "Raahul V S"]
[Black "Neelabh Jyoti Borthakur"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2478"]
[BlackElo "1780"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2022.03.15"]
[EventRounds "10"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,111,26,25,24,19,18,13,15,18,22,17,26,8,82,39,127,120,117,130,131,124,124,118,117,138,116,114,132,131,142,98,121,16,12,0,0,0,0,0,0,0,0,-8,0,-121,0,0,0,0,21,0,19,17,8,18,13,10,91,101,354,55,229,230,232,218,202,231,230,221,229,207,237,244,223,244,239,172,206,79,307,198,230,213,226,218,214,214,331,331,293,237,29989,29990,29990,29991,29991,29992]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 O-O 8. Qc2 h6 9. Bh4 Nh5 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 10. Bxe7 Qxe7 11. Nge2 Re8 {The position is equal.} 12. O-O Nd7 13. Rae1 Nhf6 14. Ng3 {[#]} c5 $146 (14... Nb6 $11) ({Predecessor:} 14... Qd8 15. h3 Nf8 16. f3 Qd6 17. Qf2 Be6 18. e4 dxe4 19. fxe4 Rad8 20. Nce2 Qb4 {1-0 (38) Vrbata,Z (2339)-Hrdina,R (2246) Czech Republic 2019}) 15. Qd2 (15. e4 $16 {aiming for e5.} cxd4 16. Nb5) 15... a6 (15... Qd8 $14) 16. e4 $1 $16 {[%cal Be3e4,Be4d5,Bd5d6][%mdl 32] Threatens to win with e5.} cxd4 17. Nxd5 Qd8 18. Bb1 {White is much more active.} Nxd5 19. exd5 Rxe1 20. Rxe1 (20. Qxe1 $6 Nf6 $11) 20... Nf6 21. Qxd4 Be6 22. d6 Rc8 23. h3 (23. Bf5 $142) 23... Rc4 24. Qd3 (24. Qe5 $16) 24... Rc5 $1 $11 {[%cal Bc4c5,Bc5b5,Bb5b2][%mdl 32]} 25. Ne4 Nxe4 26. Qxe4 {Intending Qh7+ and mate.} Qxd6 27. Qxb7 Rb5 $1 28. Qe4 Rxb2 29. Qh7+ Kf8 30. Bd3 (30. Bf5 $11) 30... Qb4 ({Black should play} 30... Rd2 $1 $17 31. Bf1 (31. Qh8+ Ke7 $17) 31... Qd4 32. Qh8+ Ke7) 31. Re3 Qd4 32. Bf5 Rb6 (32... Rxa2 $2 33. Bxe6 (33. Qh8+ $2 Ke7 $19) 33... fxe6 34. Rf3+ Ke7 35. Qg8 $18) 33. Qh8+ Ke7 34. Qc8 Qd1+ 35. Kh2 {Black must now prevent Qc7+.} Qd6+ 36. g3 {Strongly threatening Bxe6. Dancing on a razor blade.} Rc6 (36... Qd4 $1 $11) 37. Qb7+ $1 $16 Rc7 $2 {[%mdl 8192]} (37... Qd7 $16 38. Qb4+ Ke8) 38. Qe4 $2 ({Only move:} 38. Qb2 $1 $18 {[%cal Rb2g7]} Kf8 39. Qb8+ Ke7 40. Rd3 $1 Bxf5 41. Rxd6 Kxd6 42. Qf8+ Kc6 43. Qxg7) 38... Qc6 $2 (38... Rc5 $1 $14) 39. Qh4+ $18 Ke8 40. Qf4 $1 Rd7 41. Bxe6 $1 fxe6 {[%mdl 4096] Endgame [#] KQR-KQR} 42. Rf3 $1 {[%csl Gf3][%cal Rf4f8]} (42. Qg4 Re7 $16) 42... Qd6 {[#] To avoid Qf8+} 43. Qe4 Qd5 44. Qg6+ (44. Qf4 $6 Qd6) 44... Kd8 45. Rf8+ Kc7 46. Qc2+ Kd6 47. Qa4 (47. Qb2 $18) 47... Qb5 $2 (47... Ke7 $16 {was called for.} 48. Qf4 e5) 48. Qf4+ ({Don't do} 48. Qd4+ $6 Qd5 49. Qb2 a5 $18) 48... Qe5 49. Qb4+ Qc5 50. Qb8+ Qc7 51. Qb2 Qc6 {To avoid Rf3} (51... Rf7 $142 52. Ra8 Qc4) 52. Rb8 {Rb6 is the strong threat.} Kc7 {Inhibits Rb6.} 53. Rg8 {[%csl Gg8][%cal Rb2b8]} ({Don't take} 53. Qe5+ Qd6 54. Qb2 Qd4 55. Qb7+ Kd6 $18) 53... Qf3 $2 (53... Kd6 $18 54. Rb8 Qd5) 54. Qb8+ {White mates.} Kc6 55. Rc8+ Kd5 56. Qa8+ {Weighted Error Value: White=0.29 (precise) /Black=0.49} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.1"]
[White "Aradhya, Garg"]
[Black "Ponkratov, Pavel"]
[Result "0-1"]
[ECO "E48"]
[WhiteElo "2236"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,62,0,0,0,0,-14,-8,-6,0,-23,-19,-29,-17,-28,-21,-28,-16,-74,-65,-66,-64,-81,-79,-126,-87,-83,-82,-83,-86,-83,-77,-64,-45,-113,-95,-114,-75,-408,-405,-399,-158,-171,-157,-404,-373,-1190,-1166,-1141,-1152,-5797,-770,-3067,-2167]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. cxd5 exd5 7. a3 {E48: Nimzo-Indian: Rubinstein: 5 Bd3 d5 including 6 Ne2, but excluding 6 a3.} Bd6 8. Qc2 {is currently scoring better than 8.Nge2.} b6 9. b4 {The position is equal.} c6 {[%cal Bc7c6,Bc6c5][%mdl 32]} 10. Nge2 a5 11. b5 c5 {[#]} 12. O-O $146 ({Predecessor:} 12. dxc5 bxc5 13. Bf5 Nbd7 14. O-O g6 15. Bh3 Nb6 16. Bxc8 Rxc8 17. h3 Qc7 18. Rd1 {0-1 (47) Kempen,L-Megier,W Australia 1995}) 12... Bb7 13. Ng3 Nbd7 14. Qe2 (14. dxc5 $11 Nxc5 15. Bb2) 14... Rc8 15. Bb2 Re8 16. Qf3 g6 17. Bc2 (17. Rfe1 $142) 17... h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 18. Bb3 {[%cal Rc3d5]} h4 19. Nge2 {[%cal Rc3d5]} c4 $36 {[%mdl 2048] Black is on the roll.} 20. Bc2 Kg7 21. Nf4 Rh8 22. g3 ({Of course not} 22. Nfxd5 Nxd5 23. Nxd5 Qg5 $17) ({White should play} 22. Qd1 $15) 22... Qe7 23. Rfe1 Rce8 24. Nfxd5 $2 {[%mdl 8192]} (24. Re2 $17 {is a better chance.}) 24... Nxd5 ({Not} 24... Qe6 $2 25. e4 Bxd5 26. Nxd5 Nxd5 27. Re2 $19) 25. Nxd5 Qe6 $2 (25... hxg3 $19 26. fxg3 Qg5) 26. e4 $17 {[%cal Od5b6] [#] And now Nxb6! would win.} Bxd5 27. Re3 $2 {White does not recover from this.} (27. Bc3 $17 {was the only chance.}) 27... Qh3 $19 28. exd5 $2 (28. Qg2 hxg3 29. Qxh3 Rxh3 30. hxg3) 28... hxg3 {Black is clearly winning.} 29. hxg3 Rxe3 30. fxe3 Qh2+ 31. Kf1 Qxc2 {Weighted Error Value: White=0.80/Black=0.20 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.2"]
[White "Poormosavi, Seyed Kian"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2229"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,90,14,0,27,27,34,29,27,22,29,9,6,-22,-7,-10,9,-36,48,48,46,48,52,10,14,0,0,16,45,46,42,60,77,77,70,68,68,7,65,65,95,92,99,72,80,77,87,47,49,0,0,-21,0,0,0,0,0,-201,-197,-196,-207,-199,-190,-255,-255,-340,-311,-328,-316,-320,-320,-314,-312,-282,-333,-324,-282,-589,-576,-540,-533]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. b3 Bg4 5. Bb2 Nbd7 6. O-O e6 7. d3 Bxf3 {A07: Réti Opening: New York and Capablanca Systems.} 8. exf3 Bd6 9. f4 O-O {White has an edge.} 10. Re1 a5 11. Nd2 a4 {[#]} 12. c4 $146 ({Predecessor:} 12. Nf3 Bb4 13. Re2 axb3 14. cxb3 Qb6 15. a3 Bd6 16. Bh3 Rfe8 17. Qc2 Qc5 18. Qd2 {½-½ (26) Urban,J (2390)-Lengyel,L (2385) Budapest 1993}) 12... Bb4 13. Qc2 Nc5 14. Bc3 (14. Red1 $11) 14... Na6 (14... Bxc3 $1 $15 15. Qxc3 d4) 15. Bxb4 $1 $14 Nxb4 16. Qc3 c5 17. d4 (17. bxa4 $14 {was preferrable.} dxc4 18. dxc4) 17... a3 $11 18. dxc5 Qa5 {[%cal Od5d4]} 19. cxd5 Nfxd5 20. Bxd5 exd5 21. Re7 $36 {[%mdl 2048] Black is under pressure.} b6 22. cxb6 (22. c6 Nxc6 23. Qxa5 (23. Qxc6 Qxd2 24. Qb5 g6 $11) 23... bxa5 $11) 22... Qxb6 {Threatens to win with ...Rfc8.} 23. Nf3 Rfc8 {Inhibits Rc7.} 24. Qe5 ({White should try} 24. Qd4 $14 Qb5 25. Qe5) 24... Nc6 (24... Nd3 $1 $11 25. Qe2 (25. Qxd5 Qf6 $11) 25... Qf6) 25. Qd6 $14 {[%cal Oe7f7]} Qb8 26. Qxb8 Raxb8 27. Rd7 Nb4 {[%cal Bc6b4,Bb4d3,Bd3f2,Bf2g4,Bg4e3,Be3c2][%mdl 32]} 28. Nd4 h6 29. Ra7 Ra8 $1 30. Rb7 (30. Rxa8 $14 Rxa8 31. Kg2) 30... Nd3 $11 31. Nf5 {Black must now prevent Ne7+.} Rc2 32. Ne7+ Kh7 33. Nxd5 Nxf2 34. Nb4 $2 (34. Rxf7 $11 {and White stays safe.} Nh3+ 35. Kh1) 34... Rb2 $19 35. Rc1 (35. Rxf7 $2 Nh3+ 36. Kh1 Rd8 $19) 35... Rd8 36. Rbc7 {[#]} ({But not} 36. Rxf7 $2 Rdd2 37. Nc2 Nh3+ 38. Kh1 Rxa2 $19) 36... Ng4 $1 37. R7c2 {[#]} ({Don't go for} 37. Rxf7 $2 Rdd2 38. Nc2 Rdxc2 39. Rxc2 Rxc2 $19) (37. h3 {might work better.} Ne3 38. Nc2 (38. Rxf7 Rg2+ 39. Kh1 Rdd2)) 37... Rxc2 $1 38. Nxc2 {[%mdl 4096] Endgame KRN-KRN} Rc8 {[%cal Og4e3]} 39. b4 {[#]} Ne3 $1 {[%mdl 512]} 40. Re1 Nxc2 41. Rc1 Rc4 42. Kf2 Kg6 {...Kf5 is the strong threat.} 43. b5 Ne3 44. Rb1 (44. Rxc4 {was the crucial defense.} Nxc4 45. Ke2) 44... Nd5 {aiming for ...Rc2+.} 45. b6 Rc2+ {Weighted Error Value: White=0.30/Black=0.11 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.3"]
[White "Vaibhav Jayant Raut"]
[Black "Deepan Chakkravarthy J."]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2198"]
[BlackElo "2520"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,116,16,24,31,24,26,31,22,54,7,0,-10,44,33,56,24,35,35,33,43,54,54,52,52,67,60,78,71,80,32,25,14,29,39,68,0,0,0,0,0,8,9,12,0,0,0,0,0,0,0,0,-34,-36,-31,-29,-29,-29,-29,-37,-39,-39,-28,-10,-27,-5,-7,-7,-28,-3,-8,-3,-6,0,-66,-58,-46,-45,-45,-15,-15,-13,-12,-15,-15,-8,-8,-7,-11,-12,-12,-11,-22,-12,-16,-12,-12,-8,-8,-8,-24,0,-8,0,-24,0]} 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. Nf3 O-O 6. O-O d6 7. e3 a6 8. d4 {A29: English Opening: Four Knights Variation with 4 g3.} Ba7 9. h3 h6 10. b3 {White is slightly better.} Bf5 11. a3 (11. dxe5 $14 dxe5 12. Ba3) 11... Re8 $11 12. Bb2 {[#]} Qd7 $146 (12... exd4 $11 13. Nxd4 Nxd4 14. exd4 c6) ({Predecessor:} 12... exd4 13. Nxd4 Nxd4 14. exd4 c6 15. d5 Qd7 16. Kh2 Ne4 17. dxc6 bxc6 18. Nxe4 Bxe4 {½-½ (47) Christiansen,L (2567)-Getz,S (2298) Lichess.org INT 2020}) 13. dxe5 $14 dxe5 14. Qxd7 (14. g4 {looks sharper.} Bh7 15. Nd5 Qd6 16. b4 Be4 17. Nh4) 14... Nxd7 15. Nd5 Rac8 16. b4 {Inhibits Na5.} Bd3 17. Rfc1 Nb6 18. Nd2 Na4 19. Ra2 {[%cal Ba1a2,Ba2b2,Bb2b3,Bb3b7][%mdl 32]} Nxb2 20. Rxb2 Nd8 21. b5 (21. Nc3 $16) 21... Bc5 22. Rb3 Bf5 23. g4 Bg6 24. Ne4 {White is more active.} (24. bxa6 $14 bxa6 25. Be4) 24... Ne6 $11 25. bxa6 bxa6 26. Rb7 Bxe4 27. Bxe4 Bxa3 28. Ra1 Bd6 29. Bf5 Rb8 30. Rxb8 Rxb8 31. Rxa6 Nc5 32. Ra2 e4 33. Kg2 Kf8 {[#] Strongly threatening ...g6.} 34. f3 $1 exf3+ 35. Kxf3 g6 36. Bc2 Kg7 37. Ke2 Ne6 38. Nc3 Ng5 39. h4 Ne6 40. Be4 Nc5 {[#] Threatens to win with ...Rb3.} (40... Rb3 $5 {[%cal Rb3c3]} 41. Nd1 Nc5 $15) 41. Bd5 Nd7 42. Nb5 Bg3 43. Ra8 ({Better is} 43. Nxc7 $11 Bxc7 44. Ra7) 43... Rxa8 44. Bxa8 $15 {[%mdl 4096] Endgame KBN-KBN} Ne5 45. c5 {[%cal Bc4c5,Bc5c6][%mdl 32]} Nd7 ({Reject} 45... Bxh4 46. Nxc7 Kf6 47. c6 $11) (45... Nxg4 $2 46. Kf3 Bxh4 47. Kxg4 $16) (45... c6 $5 {[%cal Rc6b5]} 46. Nd4 Bxh4 $15) 46. c6 $1 Nb6 47. Bb7 Kf6 48. Kf3 Be5 49. Ke4 Ke6 50. g5 f5+ 51. gxf6 $1 Kxf6 52. Na3 {To avoid Nc4} h5 53. Kf3 Ke6 54. Ke4 Bf6 55. Nb5 Bd8 56. Ba6 Kf6 57. Nc3 Ke6 58. Nb5 Kf6 {Weighted Error Value: White=0.09 (flawless) /Black=0.08 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.4"]
[White "Stany, G.A."]
[Black "Parnali, S Dharia"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2517"]
[BlackElo "2224"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,25,0,0,0,0,-13,0,-15,-8,-11,-19,-51,27,14,25,-3,24,16,17,18,19,19,16,15,37,19,20,12,18,10,43,55,39,33,54,58,58,7,56,1,113,108,169,166,159,169,240,183,312,305,443,443,459,478,481,476,520,514,521,523,491,448]} 1. d4 d5 {[%cal Bd7d5,Bd5c4][%mdl 32]} 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 Bd7 6. Ne5 Bc6 7. Nxc6 Nxc6 8. Qa4 Qd7 {E04: Open Catalan: 5 Nf3.} 9. Qxc4 Nxd4 10. O-O {has lost popularity (10.Bxb7).} c6 {The position is equal.} 11. Nc3 e5 {[#] Prevents Bf4.} 12. Rd1 $146 ({Predecessor:} 12. f4 Qe6 13. Qd3 Rd8 14. fxe5 Bc5 15. Kh1 Qxe5 16. Bf4 Qh5 17. Ne4 Nxe4 18. Qxe4+ {0-1 (44) Abdyjapar,A (2402)-Vokhidov,S (2343) Dushanbe 2015}) 12... Qe6 13. Qa4 Qg4 {[#]} (13... a5 $15 14. Rd3 Bb4) 14. Bf4 $1 $11 Bc5 15. e3 Nf3+ ({Much less strong is} 15... exf4 16. exd4 Bb6 17. Bxc6+ $1 Kf8 18. Bxb7 $14) 16. Bxf3 Qxf3 17. Bxe5 Ng4 18. Qf4 {The board is on fire. Active counter play!} Qxf4 19. Bxf4 Rd8 20. Kg2 {[%cal Bg1g2,Bg2f3,Bf3f4][%mdl 32]} f5 21. h3 Nf6 22. Kf3 h5 23. Rxd8+ Kxd8 24. Rd1+ Kc8 25. Be5 {And now Bxf6 would win.} Be7 26. Kf4 (26. Bd4 $14) 26... Rf8 (26... g6 $1 $11) 27. Bd6 (27. Bd4 $14) 27... g5+ {[#]} (27... Bxd6+ $11 28. Rxd6 Ne4) 28. Ke5 $1 $16 Kd8 {[#]} (28... Kd7 $16 {was necessary.}) 29. Ke6 $1 $18 Bxd6 30. Rxd6+ {[%mdl 4096] Endgame KRN-KRN} ({Don't blunder} 30. Kxd6 $2 Nd7 31. Nd5 cxd5 $19) 30... Kc7 (30... Ke8 {keeps fighting.}) 31. Rd2 g4 (31... Ne4 {might work better.} 32. Nxe4 fxe4) 32. Ke7 Nh7 (32... gxh3 $142 33. Kxf8 Ng4) 33. h4 {White is clearly winning.} b5 34. Ne2 Kb6 35. Nf4 Rc8 36. Nxh5 b4 37. Ke6 c5 38. Kxf5 {Weighted Error Value: White=0.11 (very precise) /Black=0.33} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.5"]
[White "Mayank Chakraborty"]
[Black "Iniyan, P."]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2164"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "214"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,214,17,12,19,33,7,23,17,20,16,17,13,33,7,12,17,10,10,21,14,19,13,25,31,36,41,26,34,25,-35,-31,-30,-30,-26,0,0,0,0,0,0,0,0,0,-12,0,0,0,-3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-70,-68,-73,-8,-14,-14,-26,-22,-75,-75,-79,-53,-53,-52,-168,-20,-43,-43,-43,-43,-43,-44,-32,-14,-17,-8,-8,-8,-8,-8,-239,-241,-219,-267,-716,-716,-709,-709,-750,-716,-702,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-74,-74,-74,-74,-74,-68,-68,-68,-74,-74,-74,-74,-74,-74,-74,-68,-68,-68,-74,-74,-74,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-68,-70,-74,-75,-75,-29984,-29985,-29987,-29979,-29988,-29989]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bd3 Ngf6 {[%cal Bg8f6,Bf6h5,Bh5f4][%mdl 32]} 6. Re1 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} e5 {[#]} 7. c4 $146 ({Predecessor:} 7. c3 Be7 8. Bc2 O-O 9. d4 b6 10. d5 Ne8 11. c4 g6 12. Nc3 Ng7 13. Nd2 {1-0 (49) Abdusattorov,N (2634)-Sunilduth Lyna,N (2624) Chess.com INT 2021}) 7... g6 8. Nc3 {White has an edge.} Bg7 9. Bc2 O-O 10. Rb1 Nh5 11. Nd5 Ndf6 12. b4 Nxd5 13. cxd5 c4 14. d3 cxd3 15. Bxd3 Nf4 16. Bf1 Bg4 17. h3 Bd7 18. Bxf4 exf4 19. e5 (19. Qd2 $11) 19... dxe5 $15 20. Nxe5 Bf5 {This bishop pair is nice.} 21. Bd3 {Bxf5 is the strong threat.} Qxd5 22. Bxf5 Qxd1 23. Rbxd1 {And now Bd7 would win.} gxf5 24. Nd7 Rfe8 25. Rxe8+ Rxe8 $11 {[%mdl 4096] Endgame KRB-KRN} 26. Nc5 Bc3 27. a3 Re7 28. Rd3 Be5 29. Kf1 f6 30. Ke2 a5 31. Kf3 axb4 32. axb4 Kf7 33. Rd8 Rc7 34. Nd3 Ke7 (34... Rc3 $5 35. Ke2 Rc2+ 36. Kf3 Kg6 $11) 35. Rh8 Kd6 36. Rd8+ Rd7 37. Rc8 Ke7 38. Nc5 Rd2 39. Rh8 Bd4 {[%csl Gd4][%cal Rd2f2]} 40. Rxh7+ Kd6 {[%csl Gd4][%cal Rd2f2]} 41. Kxf4 b6 42. Nb7+ Kd5 43. f3 ({Don't go for} 43. Rd7+ $2 Kc6 44. Rg7 Rxf2+ 45. Kg3 f4+ 46. Kh4 Be5 47. Nd8+ Kb5 $19) 43... Rxg2 44. Rd7+ Kc4 45. Kxf5 Rg5+ 46. Kf4 Be5+ 47. Ke4 Rh5 48. Nd6+ Kxb4 49. Nf5 {Prevents Rh4+.} Rxh3 50. f4 Bb2 51. Rb7 Kb5 52. Kd5 (52. Ne3 $11) 52... Rd3+ $1 $15 53. Ke6 Kc6 {Prevents Rc7+.} (53... Bc1 $1 $17 54. Rf7 Bxf4 55. Rxf6 Rd8) 54. Rb8 Kc7 55. Ra8 b5 56. Ne7 (56. Ra7+ $11 {remains equal.} Kb6 57. Ra8) 56... Rd6+ $1 $17 57. Kf5 Kb7 (57... Rd4 $5 {[%cal Rb5b4]} 58. Rc8+ Kd7 $17) 58. Ra5 Kb6 59. Ra8 ({White has to play} 59. Ra2 $15 Rd2 60. Ng8) 59... Rd3 ({Black should play} 59... Kc5 $1 $19 {Threatens to win with ...b4.} 60. Rc8+ Kb4 61. Nc6+ Ka4 62. Ra8+ Kb3 63. Na5+ Kb4) 60. Rb8+ Kc5 61. Rc8+ Kb4 62. Ke6 {To avoid Rd6+} Re3+ 63. Kf7 {aiming for Nd5+.} Re4 64. f5 Kb3 65. Rb8 b4 66. Nd5 Rc4 67. Rb7 $2 (67. Rb6 $1 $11) 67... Bd4 $1 $19 68. Nxf6 Rc5 $1 {To avoid Nd5} 69. Nd7 $2 (69. Ne4 Rxf5+ 70. Kg6) 69... Rxf5+ 70. Ke6 Rf4 $1 71. Nb8 {[#]} Kc3 $1 ({Weaker is} 71... Kc4 72. Nc6 $15) 72. Rc7+ Kb2 $2 (72... Kd3 $19 73. Nc6 b3) 73. Nc6 $1 $15 b3 74. Na5 $1 Rf6+ 75. Ke7 Rh6 {White must now prevent ...Rh7+. Black is more active.} 76. Nxb3 Kxb3 {KRB-KR} 77. Rd7 Kc4 78. Ke8 Be5 79. Re7 Kd5 80. Rd7+ Bd6 81. Rf7 Rh8+ 82. Kd7 Be5 83. Ke7 Ra8 84. Kd7 $1 Ra6 85. Re7 Bf6 {( -> ...Ra7+)} 86. Rf7 Rd6+ 87. Kc7 Rc6+ 88. Kd7 Be5 89. Ke7 Ra6 90. Kd7 Bf6 91. Ke8 Ke6 {[%cal Ra6a8]} 92. Re7+ $1 Kf5 93. Rb7 Rd6 94. Rd7 Re6+ 95. Kf7 Be5 96. Re7 Rh6 97. Rd7 Bd6 98. Kg7 Rg6+ 99. Kf7 $1 Rf6+ 100. Kg7 Bf8+ 101. Kg8 Ke6 {Inhibits Rf7.} 102. Rb7 Bd6 103. Rg7 Be5 {Hoping for ...Rf3.} 104. Kh7 Rf1 105. Rg8 $2 {[%mdl 8192] [#]} (105. Rg6+ $17 Bf6 106. Rg3) 105... Kf5 $1 {[%cal Rf1h1] Black mates.} 106. Re8 Rh1+ 107. Kg8 Kf6 {Weighted Error Value: White=0.11 (very precise) /Black=0.09 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.6"]
[White "Mosadeghpour, Masoud"]
[Black "Priyanka, Kumari"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2511"]
[BlackElo "1910"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,59,18,21,0,0,6,13,0,0,15,29,24,54,36,36,37,62,72,76,6,134,139,131,120,140,143,367,368,655,647,647,643,637,585,568,509,1064,982,5385,2136,5381,5269,29986,1518,1477,1183]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. g4 {B92: Sicilian Najdorf: 6 Be2.} h6 10. h4 d5 11. exd5 {The position is equal.} Nxd5 12. Nxd5 Bxd5 13. Bf3 {[%cal Be2f3,Bf3g2,Bg2e4,Be4b7,Bb7a8][%mdl 32]} e4 14. Bg2 {[#]} Nc6 $146 ({Predecessor:} 14... a5 15. Nd2 O-O 16. Nxe4 Ra6 17. Qe2 Qc7 18. g5 Bb4+ 19. c3 Bxc3+ 20. Nxc3 Bxg2 {0-1 (32) Jarmula,L (2483)-Rakotomaharo,F (2429) Germany 2019}) 15. Qd2 Ne5 16. O-O-O $1 Bxb3 17. Qc3 (17. axb3 $16 {And now Qc3 would win.} Qxd2+ 18. Rxd2) 17... Qc8 (17... Nd3+ $1 $11 {remains equal.} 18. Kb1 Bd5) 18. Qxb3 $16 Nxg4 19. Bxe4 Nxe3 20. Bxb7 (20. Qxe3 O-O $14) 20... Qc5 $2 {Loses the game.} (20... Qe6 $16 {might work better.} 21. Rd3 (21. Bxa8 Qxb3 22. axb3 Nxd1 $14) (21. Qxe3 Qxe3+ 22. fxe3 Ra7 $16) 21... Rd8) 21. Bxa8 $18 {Dancing on a razor blade.} Nxd1 $2 (21... O-O) 22. Qb8+ {[%mdl 64] [#] Skewer} ({Stronger than} 22. Rxd1 O-O 23. Bd5 Bxh4 $11) 22... Bd8 {[%cal Oe8g8] Hoping for ...0-0!} 23. Rxd1 {[%csl Gd1][%cal Rb8d8]} Ke7 24. Rd5 {Threatening mate with Qe5+.} Qb6 25. Qe5+ Qe6 (25... Kf8 $142 26. Bc6 Be7) 26. Qg3 Qe1+ 27. Rd1 Qe6 {To avoid Qd6+} 28. Qa3+ Ke8 29. Qa4+ (29. Qc5 $142 f5 30. Bc6+ Kf7 31. Bd5 Re8 32. Bxe6+ Rxe6 33. Rxd8 Kg6 34. Qf8) 29... Ke7 30. Qb4+ {Weighted Error Value: White=0.16 (very precise) /Black=0.86} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.7"]
[White "Mahindrakar Indrajeet"]
[Black "Fawzy, Adham"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2059"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,88,0,0,0,-5,16,2,2,0,0,19,12,-41,-41,-40,-32,-46,-58,-67,-64,-54,-39,-59,-35,-35,-12,-27,-22,-33,0,-29,44,16,59,62,72,24,71,-35,-33,-58,-70,-58,-52,-54,-48,-47,-54,-89,-71,-91,-91,-127,-126,-120,-132,-294,-306,-298,-302,-456,-449,-1759,-1716,-12835,-12835,-2451,-897,-808,-788,-29992,-29993,-29993,-29992,-29992,-29993,-29993,-29990,-29994,-29991]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Bd3 Nc6 {B22: Sicilian: 2 c3.} 7. Qe4 g6 8. Nf3 Bg7 {[#] The position is equal.} 9. Na3 $146 ({Predecessor:} 9. O-O O-O 10. Na3 f6 11. exf6 Nxf6 12. Qh4 Nh5 13. Bg5 Bf6 14. Bxf6 Qxf6 15. Nc4 Qxh4 16. Nxh4 {0-1 (60) Gratton,D-Boldrin,M (1914) Nova Gorica 2004}) 9... d6 {[%cal Rd6e5]} 10. Bg5 Qd7 {[%cal Rd6e5]} 11. Nc4 ({Better is} 11. exd6 $11 O-O 12. O-O) 11... O-O $1 $15 {...dxe5 is the strong threat.} 12. Nxd6 {[#]} Nxe5 $1 {[%mdl 64] Remove Defender} 13. Nxe5 (13. Nxc8 Nxd3+) 13... Qxd6 14. Nc4 Qc5 {[%cal Od5c3]} 15. Qh4 b5 16. Nd2 Bb7 {[%cal Od5c3]} (16... f6 $5 {[%cal Rf6g5]} 17. Bh6 e5 $15) 17. O-O Qc6 18. Nf3 e5 19. Rfe1 Rfe8 {[%cal Od5c3]} (19... f6 $5 {[%cal Rf6g5]} 20. Bd2 Rfd8 $11) 20. Rad1 {[#]} Nf6 ({Black should play} 20... Nxc3 $1 $11 21. bxc3 e4) 21. Bf1 Nd7 (21... Ne4 $11) 22. Bh6 Bf6 23. Ng5 {White is more active.} ({White should try} 23. Qb4 $16 a6 24. Rd6) 23... Nc5 (23... a6 $11) 24. Re3 (24. Qg3 $16) 24... Rad8 25. Rde1 {[#]} Nd3 $1 26. Rb1 Nf4 {[%cal Rf4g2]} 27. Qg3 Bg7 28. Bxg7 Kxg7 29. Rbe1 ({Not} 29. Rxe5 $2 Rxe5 30. Qxf4 Qf6 31. Qxf6+ Kxf6 $19) 29... f6 30. Nf3 a6 $36 {[%mdl 2048] White is under strong pressure.} 31. Qh4 g5 32. Qg3 Bc8 {aiming for ...Nh5.} 33. h4 $2 {This move loses the game for White.} (33. h3 $17) 33... Nh5 $19 34. Qh2 g4 35. Nxe5 (35. Ng5 {was worth a try.}) 35... fxe5 36. Rxe5 (36. g3 $142) 36... g3 37. fxg3 Rxe5 38. Rxe5 {[#]} Qb6+ (38... Rd1 $142 $1 39. Rg5+ Kf7) 39. Kh1 {[#]} Qf2 $1 {[%csl LRb2,LRf1,LRg3][%cal Od8d1] ( -> ...Rd1!)} 40. Rxh5 {[#]} (40. Rg5+ Kh8) 40... Rd1 $1 {Black mates.} 41. Rg5+ Kf8 42. Qg1 Rxf1 43. Qxf1 Qxf1+ 44. Kh2 Qf2 {[%mdl 32768] Weighted Error Value: White=0.85/Black=0.18 (very precise) . An unexpected result.} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.8"]
[White "Karthik Venkataraman"]
[Black "Arpan, Das"]
[Result "1-0"]
[ECO "A65"]
[WhiteElo "2485"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,49,61,54,31,44,43,45,50,71,60,58,64,64,9,71,69,75,75,168,176,251,246,233,222,363,322,346,332,312,313,521,495,556,570,660,652,642,644,593,539]} 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Nge2 {A65: Modern Benoni: 6 e4.} Bg7 8. Ng3 h5 9. Be2 {White is slightly better.} h4 10. Nf1 h3 11. g3 O-O {[%cal Ob7b5] [#]} 12. Ne3 $146 ({White should play} 12. Bg5 $14) ({Predecessor:} 12. Bg5 Qa5 13. Nd2 Re8 14. O-O a6 15. a4 Qc7 16. Qc2 Nbd7 17. Nc4 Ne5 18. Nxe5 Rxe5 {1-0 (37) Braun,A (2609)-Burdalev,K (2394) Chess.com INT 2020}) 12... Re8 (12... b5 $1 $11 {remains equal.}) 13. f3 $36 {[%mdl 2048] White has the initiative.} a6 14. a4 {Inhibits b5.} Nh5 (14... Nbd7 $16 {keeps fighting.}) 15. Nc4 $18 f5 (15... Bd4 $142 16. Bh6 Qe7) 16. O-O {[%cal Be1g1,Bg1h1,Bh1h2,Bh2h3][%mdl 32]} Bd4+ 17. Kh1 f4 (17... Qe7 $142 18. Qd2 fxe4) 18. g4 Ng3+ 19. hxg3 fxg3 {[#]} 20. Rg1 g2+ (20... Qh4 21. Be3 (21. Nxd6 $2 Rf8 $19) 21... Bxe3 22. Nxe3 Qh6) 21. Kh2 {White is clearly winning.} Qf6 22. e5 Rxe5 23. Nxe5 Bxe5+ {[#]} 24. f4 $1 ({Worse is} 24. Kxh3 Qh8+ 25. Kxg2 Qh2+ 26. Kf1 Bd4 $11) 24... Bd4 25. Kxh3 {Weighted Error Value: White=0.08 (flawless) /Black=0.42} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.9"]
[White "Imocha, Laishram"]
[Black "Raahul V S"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "2049"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,64,0,0,12,-78,-14,-13,-12,-41,-33,-24,-32,-39,-27,-57,-25,-115,-114,-147,-150,-265,-250,-359,-354,-356,-358,-511,-507,-508,-502,-1117,-1165,-1171,-1170,-1508,-1453,-1317,-1306,-1297,-1262,-1239,-1206,-5481,-5281]} 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. c4 c6 7. cxd5 cxd5 8. Ne5 Nc6 9. Nc3 e6 10. Nxc6 bxc6 11. Bf4 Nh5 12. Be3 Qd6 {[#] D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5).} 13. g4 $146 (13. Bf3 $11 {keeps the balance.}) ({Predecessor:} 13. f4 f5 14. Rc1 Bb7 15. Na4 Rac8 16. Nc5 Ba8 17. Bf2 Nf6 18. h3 Rf7 19. Be1 Nd7 20. e3 Nxc5 21. Rxc5 Rb8 22. b4 {½-½ (22) Jungmichel,D (2090)-Reinke,T Mecklenburg VP 2003}) 13... Nf6 (13... Nf4 $17 14. h3 Nxg2 15. Kxg2 e5 16. dxe5 Bxe5) 14. h3 $11 Nd7 {The position is equal.} 15. g5 e5 16. dxe5 Qxe5 17. Qc1 $1 Nb6 (17... Qb8 $5 {[%cal Rd5d4]}) 18. Bc5 Re8 {White must now prevent ...d4.} (18... Rd8 $5 {[%cal Rd5d4]}) 19. f4 {[#]} (19. Rd1 $1 $11) 19... Qc7 $1 $17 20. Bf2 Bf5 {Black is more active.} 21. a4 (21. e3 $17) 21... Qd7 $19 22. Kh2 (22. Rd1 {keeps fighting.}) 22... d4 23. Nd1 Nd5 ({Not} 23... Rxe2 $2 24. Qxc6 Qxc6 25. Bxc6 $19) 24. Re1 {[#]} (24. e3 {might work better.}) 24... Nxf4 $1 {[%mdl 512] Black is clearly winning.} 25. Qxc6 Qe7 26. Qxa8 (26. Qf3 $142 Qxg5 27. Qg3 Qxg3+ 28. Bxg3 Nxg2 29. Kxg2) 26... Rxa8 27. Bxa8 Be5 {( -> ...Nd5+)} 28. Bg3 {[#]} Nxe2 $1 {[%mdl 512]} 29. Rxe2 (29. Ra3 d3) 29... Bxg3+ {[%mdl 64] Discovered Attack} 30. Kxg3 Qxe2 31. Bf3 Qf1 32. Ra3 Qg1+ {Weighted Error Value: White=1.02/Black=0.08 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.10"]
[White "Mirzoev, Azer"]
[Black "Mohota, Nisha"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2468"]
[BlackElo "2147"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,59,16,20,26,20,13,95,35,25,36,98,85,83,100,91,98,89,95,87,71,103,94,114,116,123,126,161,187,180,163,239,246,226,178,245,239,821,311,321,310,864,849,1296,1225,1151,1129,1116,1105,1012,958,1108,1085]} 1. d4 d5 2. Nf3 e6 3. c4 a6 4. Nbd2 Nf6 5. g3 c5 6. Bg2 {D30: Queen's Gambit Declined: Systems without Nc3.} Nc6 7. O-O dxc4 {[#]} (7... Be7 $11) 8. Nxc4 ({Better is} 8. Ne5 $1 $16 {[%cal Re5c6]}) 8... cxd4 $14 9. Bf4 Be7 ({Black should try} 9... Bc5 $14) 10. Nfe5 $16 {[#]} Nd5 $146 ({Predecessor:} 10... Bd7 11. Nxd7 Nxd7 12. Nd6+ Bxd6 13. Bxd6 e5 14. f4 exf4 15. Bxc6 bxc6 16. Rxf4 Qb6 {1-0 (23) Garcia Fuentes,S (2134)-Quirke,J (2107) Chess.com INT 2021}) 11. Nxc6 bxc6 12. Qxd4 O-O 13. Rfd1 a5 14. Rac1 {White is much more active. Black has bad knights.} Bb7 15. Qd2 Ra6 16. Qc2 {Strongly threatening e4.} Qa8 17. Bd6 Re8 18. Bxe7 Rxe7 19. Nd6 Rb6 (19... Rd7 {keeps fighting.}) 20. e4 $18 Nf6 21. Rd2 {And now Qc5 would win.} Ba6 (21... h6 $142 22. Rcd1 Ba6) 22. Qc5 {[%csl LRa5,LRb6]} Nd7 {[#]} (22... Rb8 23. Qxa5 Bb7) 23. Qxa5 $2 (23. Nc8 $1 {[%mdl 512]} Re8 24. Nxb6 Nxc5 25. Nxa8) 23... Qb8 24. b3 e5 $2 (24... f6 25. Rcd1 Qc7) 25. Nf5 {White is clearly winning.} Kf8 26. Rcd1 Bc8 27. Nxe7 Kxe7 28. Bh3 {[%cal Rd2d7]} Rb7 29. Qa3+ Ke8 30. Rd6 {Weighted Error Value: White=0.26 (precise) /Black=0.31} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.11"]
[White "Kumar, Gaurav"]
[Black "Tahbaz, Arash"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2025"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,91,18,12,27,12,8,10,10,10,10,0,54,0,14,-38,-16,-72,-31,-73,-80,-98,-110,-109,-112,-139,-143,-134,-29,-31,-33,-49,-35,-26,-22,-30,-32,-58,-61,-88,-41,-17,-36,-137,-128,-128,-98,-133,-137,-145,-110,-246,-228,-260,-228,-275,-178,-160,-170,-180,-156,-192,0,-50,0,0,0,0,0,0,0,0,29990,29991,29991,29990,29990,29991,29991,29992]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 Nf6 5. Qe2 O-O 6. e5 dxe5 7. dxe5 Nd5 8. O-O c6 {B06: Modern Defence.} 9. Nbd2 b5 10. Bb3 a5 {[#] The position is equal.} 11. a4 $146 ({Predecessor:} 11. c4 Nc7 12. Rd1 a4 13. Ne4 Qe8 14. Bc2 bxc4 15. Qxc4 Be6 16. Qd4 Nd7 17. Neg5 {1-0 (45) Promyshlyanskiy,V (2073)-Mittag,R (2017) Playchess.com INT 2020}) 11... b4 12. Re1 Na6 (12... e6 $11) 13. Ne4 ({White should try} 13. Qc4 $14) 13... Bg4 {[%cal Og7e5]} 14. c4 (14. Neg5 $11) 14... bxc3 15. Nxc3 (15. bxc3 $11 Qc7 16. Bc4) 15... Nc5 ({Better is} 15... e6 $1 $17) 16. Bc4 (16. Bxd5 $15 {deserves consideration.} cxd5 17. Be3) 16... e6 $17 17. Ne4 {[#]} Nd7 18. Bg5 Qb6 19. Bxd5 {And now Ba2 would win.} cxd5 20. Nf6+ Nxf6 (20... Bxf6 $17 21. exf6 Bxf3 22. gxf3 Rab8) 21. exf6 $11 Bh8 22. Rab1 Rfc8 {[%cal Oh7h6]} 23. h3 $1 Bxf3 24. Qxf3 Rc2 25. Be3 Qb4 26. Rbd1 Rc4 {Prevents Bd4.} (26... Rxb2 $17 {Hoping for ...Qc3.} 27. Bd4 Ra2) 27. Bh6 $15 {[%cal Oe1e6]} Rc6 (27... Qxb2 $2 {[#]} 28. Rxe6 $3 {[%mdl 512]} Rcc8 29. Rd6 $18 (29. Qxd5 Bxf6 30. Rd6 Qe5 $14)) (27... Qxa4 $2 28. b3 Qa3 29. Ra1 $18) 28. Be3 (28. g4 $1 $15) 28... Qxb2 $17 29. Bd4 Qb4 30. Be5 Qxa4 31. Ra1 Qh4 32. Rab1 (32. Qb3 $17) 32... a4 $19 33. Rb7 Qg5 34. Rb4 Rc1 35. Rxc1 Qxc1+ 36. Kh2 Qc2 37. Qe3 Rc8 $2 (37... h5 $19 {aiming for ...a3.} 38. Qb6 Qc8) 38. f4 (38. Qa7 $11 h6 39. f4) 38... h6 (38... Ra8 $1 $15 39. Bc3 Qf5) 39. Qa7 $11 g5 40. Rxa4 Qg6 41. Qd7 $36 {[%mdl 2048] White is pushing.} Rf8 42. Qe7 {[%cal Oe7f8] White threatens Qxf8+! and mate.} g4 $2 {[%mdl 8192] [#]} (42... Rc8 $11) 43. Qxf8+ $1 {[%mdl 512] White mates.} Kh7 44. hxg4 Bxf6 45. Ra7 Bxe5 46. fxe5 {What a bad dream for Black.  Weighted Error Value: White=0.24 (precise) /Black=0.35} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.12"]
[White "Krishna C R G"]
[Black "Arindam, Mukherjee"]
[Result "1-0"]
[ECO "E08"]
[WhiteElo "2466"]
[BlackElo "2073"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,42,25,40,46,45,38,42,48,47,26,127,132,127,108,100,111,117,95,112,43,116,121,195,195,226,237,392,397,399,373,541]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c5 8. Rd1 {E08: Closed Catalan: Main Line: 7 Qc2.} b6 9. cxd5 exd5 10. Nc3 {White is slightly better.} Bb7 11. Bf4 c4 {[#]} (11... Rc8 $11) 12. Ne5 $1 $16 Rc8 {[#]} 13. Qf5 $146 ({Predecessor:} 13. Qa4 a6 14. Nxd7 Nxd7 15. Nxd5 b5 16. Qc2 Bxd5 17. Bxd5 Qb6 18. Bg2 Bf6 19. Be3 {0-1 (55) Keyser,R (2026)-Weyrich,M (2273) Germany 2018}) 13... g6 14. Qh3 {White is much more active.} Nb8 15. Rac1 a6 16. a4 (16. a3 $16) 16... Nh5 (16... Nc6 $14) 17. Bh6 Ng7 {[#]} (17... Re8 $16 {is a better defense.} 18. g4 Ng7) 18. Ng4 $1 $18 Rc7 19. Bf4 h5 $2 (19... Rc8 {keeps fighting.} 20. Ne3 Ne6) 20. Bxc7 Qxc7 21. Ne3 Rd8 {Weighted Error Value: White=0.07 (flawless) /Black=0.44} (21... b5 {was called for.} 22. Nexd5 Bxd5 23. Nxd5 Qd8) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.13"]
[White "Gaikwad, Siddhant"]
[Black "Das, Sayantan"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2016"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,90,12,16,-20,29,27,58,45,60,58,68,49,51,0,0,0,-16,-39,-27,-44,-37,-91,-95,-191,-196,-188,-185,-226,-234,-226,-207,-266,-250,-317,-317,-352,-354,-427,-460,-561,-546,-605,-500,-406,-391,-393,-371,-471,-478,-788,-788,-1053,-1022,-960,-921,-795,-788,-1177,-1136,-6629,-6649,-4602,-3822,-29978,-29978,-29978,-29979,-29979,-29980,-29978,-29981,-29981,-29982,-29982,-29983,-29979,0]} 1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. O-O a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 9. Qe2 {C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines.} Qb6 (9... cxd4 {feels stronger.} 10. cxd4 g5) 10. dxc5 $1 $11 Nxc5 11. Bc2 {[#] White is slightly better.} Qc7 $146 {[%cal Ob7b5]} ({Predecessor:} 11... a4 12. Re1 Qc7 13. Nf1 b6 14. Ng3 Ba6 15. Qe3 Bc4 16. Nh5 g6 17. Ng3 h6 {1-0 (32) Zuberec,M (2130)-Pekar,K (2166) Slovakia 2004}) 12. Nb3 a4 13. Nbd4 b6 {[%cal Bb7b6,Bb6c5][%mdl 32]} 14. Nb5 (14. Re1 $14) 14... Qd7 $1 15. Be3 O-O 16. b4 axb3 $1 17. axb3 Ba6 18. Bxc5 (18. c4 $15) 18... bxc5 $17 ({Much weaker is} 18... Bxb5 $6 19. Qxb5 bxc5 20. Qe2 $11 (20. Qd3 g6 $15)) 19. c4 (19. Bd3 $17) 19... Bxb5 $19 20. cxb5 Nb4 21. Rxa8 (21. Bd3 $142) 21... Rxa8 22. Bb1 Rb8 23. Nd2 Qxb5 24. Qg4 Nc6 25. f4 Qb4 26. Nf3 Nd4 27. Ng5 Bxg5 28. Qxg5 g6 29. h4 Qb6 30. h5 Qd8 31. Qg4 Rxb3 32. hxg6 (32. Kh2 $142 Kg7 33. Rc1) 32... hxg6 33. Bxg6 {[#]} Rg3 $3 {[%cal Bb3g3,Bg3g6,Bg6g7][%mdl 544]} 34. Bxf7+ Kxf7 35. Qh5+ Rg6 36. f5 Nxf5 {Strongly threatening ...c4.} 37. Rxf5+ exf5 38. Qh7+ Rg7 39. e6+ Kf6 {Black mates.} 40. Qh4+ Rg5 41. Qh6+ Ke5 42. Kf2 Qf6 43. e7 Qxe7 44. Qh8+ Ke6 45. Qc8+ Ke5 $2 {[%mdl 32768] Weighted Error Value: White=0.83/Black=0.07 (flawless) . Sensor Board Error (Ke4/e5)?} (45... Kf6 {mates} 46. Qh8+ Kf7 47. g3 c4 48. Qb8 c3 49. Qh8 Qc5+ 50. Ke2 c2 51. Qh7+ Rg7 52. Qh5+ Ke7 53. Qh6 {[#]} c1=Q $1 {[%mdl 512]} 54. Qxg7+ Kd8 55. Qh8+ Kc7 56. Qe5+ Kb7 57. Qg7+ Kb6 58. Qf6+ Kb5 59. Qc3 Q5xc3 60. Kf2 Q1e1+ 61. Kg2 Qcxg3#) 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.14"]
[White "Rios, Cristhian Camilo"]
[Black "Praloy Sahoo"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2449"]
[BlackElo "2047"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,63,12,3,28,22,91,41,43,50,78,89,169,81,88,76,77,101,110,50,51,55,86,80,87,-37,98,93,105,75,77,58,121,118,164,159,176,165,218,218,237,227,270,268,262,0,265,7,457,364,643,641,631,606,728,657]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 g6 5. Bf4 Bg7 6. e3 Bf5 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} 7. Qb3 Bxb1 (7... Qb6 $11) 8. Rxb1 (8. Qxb7 $16 Nbd7 9. Rxb1) 8... Qa5+ {White is slightly better.} 9. Nd2 $1 Ne4 {[%csl Ge4][%cal Ra5d2] [#]} 10. Rd1 {[#]} O-O $146 (10... Nxd2 $16 {is a better defense.} 11. Rxd2 Qb6) ({Predecessor:} 10... b6 11. cxd5 O-O 12. Bc4 b5 13. Bd3 Nxd2 14. Rxd2 a6 15. Bxb8 Raxb8 16. dxc6 Rbc8 {1-0 (59) Sipos,J (2259)-Frank,J (2186) Hungary 2011}) 11. cxd5 (11. Qxb7 $18 {is more deadly.} Na6 12. cxd5 (12. Qxe7 Nb4 $11)) 11... Nd7 12. Qxb7 Nxd2 13. Rxd2 Qxd5 14. f3 ({White should play} 14. Qb3 $16) 14... Nb6 $14 15. Qa6 e5 16. dxe5 Qc5 17. Bd3 ({Better is} 17. Qa3 $16 Qxa3 18. bxa3) 17... Nd5 (17... Qc1+ 18. Rd1 Qc5 19. O-O $16) (17... Bxe5 $15 18. Bh6 Bg7 19. Bxg7 Qc1+ 20. Rd1 (20. Ke2 Qxh1 21. Bxf8 Qxg2+ 22. Ke1 Qg1+ 23. Bf1 Qxe3+ 24. Qe2 Qxe2+ 25. Bxe2 Kxf8 $15) 20... Qxe3+ 21. Be2 Kxg7) 18. Qc4 $16 Qb6 19. Qe4 Rad8 20. Ke2 f5 (20... Kh8 $14) 21. exf6 $1 Rfe8 {Inhibits Qe6+.} 22. Qc4 $18 ({Worse is} 22. fxg7 Rxe4 23. fxe4 Nxf4+ 24. exf4 Kxg7 $11) 22... Bxf6 {[#] White must now prevent ...Kg7.} 23. Be4 $1 Kg7 (23... Re6 {might work better.}) 24. Bxd5 Rxd5 25. Rhd1 {[%cal Bh1d1,Bd1d2,Bd2d6,Bd6d7][%mdl 32]} ({Much less strong is} 25. Rxd5 $6 cxd5 26. Qb3 (26. Qxd5 g5 $11) 26... Qxb3 27. axb3 Rc8) 25... Rxd2+ 26. Rxd2 Re7 27. h3 $2 (27. Kd1 $18) 27... h6 $2 {[%mdl 8192]} (27... g5 $11 {and Black has nothing to worry.}) 28. b3 $2 (28. Kd1 $18) 28... Bg5 $2 {[%mdl 8192] Black cannot hold the game after this.} (28... g5 $11 {and Black is okay.}) 29. Rd6 Rxe3+ $2 (29... Bxf4 30. Qxf4 Kh7) 30. Bxe3 {White is clearly winning.} Qxe3+ 31. Kf1 Bf6 32. Rd7+ {Weighted Error Value: White=0.48/Black=0.76} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.15"]
[White "Shyaamnikhil P"]
[Black "Shiva Pavan Teja Sharma U"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2442"]
[BlackElo "2022"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,127,9,3,4,-18,0,-18,0,-3,18,14,20,4,8,3,11,13,2,12,8,8,2,4,0,0,24,-11,-12,-15,0,0,2,9,6,6,16,0,4,4,87,87,87,92,96,96,120,99,99,99,99,99,99,89,253,253,253,253,245,245,245,245,304,304,304,289,256,248,248,248,248,248,248,248,241,208,208,186,186,186,186,186,186,179,179,179,181,179,179,179,29965,29967,29970,29972,29974,29975,29976,29977,29977,29978,29978,29979,29979,29978,29978,29977,29977,29977,29992,29993,29993,29994]} 1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. Nf3 e6 7. d4 Be7 8. Bd3 Nc6 9. O-O O-O 10. Qe2 Ncb4 {D42: Queen's Gambit Declined: Semi-Tarrasch: 5 cxd5 Nxd5 6 e3 Nc6 7 Bd3 .} 11. Bc4 b6 {[#]} 12. Ne4 $146 (12. a3 $5 {[%cal Ra3b4]} Nxc3 13. bxc3 $11) ({Predecessor:} 12. a3 Nxc3 13. bxc3 Nd5 14. Bd2 Bb7 15. Rfc1 Qc7 16. Ne5 Bd6 17. Bd3 Bxe5 18. dxe5 {0-1 (44) Milev,Z-Krogius,N Varna 1960}) 12... Nf6 {The position is equal.} 13. a3 Nxe4 14. Qxe4 Ba6 15. Bxa6 Nxa6 16. Bf4 {And now Qb7 would win.} Nc7 17. Bxc7 Qxc7 18. Rac1 Qd8 19. Ne5 Bf6 20. Nc6 {[%cal Be5c6,Bc6a7,Ba7b5][%mdl 32]} Qd6 21. Rc3 Rac8 22. Nxa7 (22. Rh3 $5 h6 23. Nxa7 $11) 22... Rxc3 23. bxc3 Qxa3 (23... Qd7 $5 24. Nc6 Rc8 $11) 24. Nb5 Qb3 25. Qc6 h6 26. g3 Rd8 27. Ra1 ({Much worse is} 27. Qxb6 Rd5 28. c4 (28. Qb8+ Bd8 $17) 28... Rxd4 $1 $15) 27... Kh7 28. Nd6 ({Avoid the trap} 28. Qxb6 $2 Rd5 29. Qc6 Rxb5 $19) 28... Rxd6 29. Qxd6 $16 {Qc6 is the strong threat.} Qxc3 $11 {[%mdl 4096] Endgame KQR-KQB} 30. Rd1 Qc2 31. Rf1 Qd3 32. Qxb6 Bxd4 33. Qb1 Qxb1 34. Rxb1 $16 {KR-KB} h5 35. Rb4 Bc5 {Loses the game.} (35... e5 $16 {keeps fighting.}) 36. Rb5 $18 Bd4 37. Rxh5+ Kg6 38. Rb5 {[%cal Bh5b5,Bb5b4,Bb4c4][%mdl 32]} Kh6 39. Kg2 g5 40. Rb4 Bc5 41. Rc4 Bd6 42. h4 gxh4 43. gxh4 Kg6 44. Kh3 Be7 45. Rg4+ Kh6 46. Rg8 Bc5 47. Kg3 Kh7 48. Rc8 Bd4 49. Rc4 Bb6 50. f4 Bd8 51. Kg4 Kg6 52. Rc8 Bf6 53. Rc6 {[%cal Of4f5] White wants to mate with f5+!} Kh7 $2 {[#]} (53... Kg7 $18 54. Rd6 Be7) 54. h5 $1 {[%cal Bh4h5,Bh5h6][%mdl 32] White mates.} Kg7 55. f5 exf5+ 56. Kxf5 Bb2 {[#]} 57. h6+ $1 Kh7 58. Kg5 Bd4 59. Kh5 Be3 60. Rf6 Kg8 61. Rf3 Bd4 62. Rd3 Be5 63. Rd8+ Kh7 64. Rf8 {Weighted Error Value: White=0.03 (flawless) /Black=0.23 (precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.16"]
[White "Singh, Soram Rahul"]
[Black "Abdisalimov, Abdimalik"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "2006"]
[BlackElo "2435"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,6,5,6,16,16,33,16,18,27,106,97,95,95,100,33,24,16,31,21,16,26,33,0,0,-20,-4,-35,-2,-8,12,0,0,-23,-15,-23,-23,-23,-23,-24,7,-87,-87,-120,-104,-120,-103,-245,-251,-311,-306,-393,-380,-391,-396,-450,-438,-897,-418,-588,-581,-575,-573,-632,-629,-627,-615,-811,-809]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. e4 c5 $1 6. d5 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} exd5 7. exd5 Qe7+ 8. Qe2 {[#] White is slightly better.} Bxc3+ $146 ({Predecessor:} 8... Ne4 9. Bd2 Bxc3 10. Bxc3 Nxc3 11. Qxe7+ Kxe7 12. bxc3 d6 13. Bd3 Nd7 14. Nf3 Nf6 {0-1 (71) Stirpe,C (2029)-Groenewold,J (2175) Erice 2013}) 9. bxc3 Ne4 {To avoid Bg5} (9... Qxe2+ $11 {remains equal.} 10. Nxe2 Kd8) 10. f3 $16 Nd6 (10... Nxc3 $2 11. Qxe7+ Kxe7 12. a4 $18 (12. Bb2 Na4 $14)) 11. Bf4 Qxe2+ 12. Bxe2 (12. Nxe2 $16 Nxc4 13. Ng3) 12... Nb7 $14 13. Nh3 {[%cal Bg1h3,Bh3f2,Bf2e4][%mdl 32]} d6 14. Nf2 Nd7 15. Ne4 Ke7 16. Nd2 Ne5 17. Nb3 f6 18. a4 Bf5 19. Kd2 {Prevents Nd3.} Rhb8 20. Ra2 Ng6 21. Bg3 Na5 $1 22. Nxa5 bxa5 23. Bd3 {To avoid Bb1} Bxd3 24. Kxd3 Kd7 25. Kc2 (25. h4 $11 {keeps the balance.}) 25... Re8 $17 26. Rd1 {[#]} Rab8 $1 27. Rd2 f5 {[%cal Bf6f5,Bf5f4][%mdl 32]} 28. h3 {White does not recover from this.} (28. h4 $17) 28... f4 $19 29. Bh2 {[#]} Re1 $1 30. g3 ({Of course not} 30. Rb2 Rxb2+ 31. Kxb2 Rh1 $19) 30... Ne5 $1 {[%csl LRc4,LRf3]} 31. gxf4 Nxc4 {White must now prevent ...Ne3+.} 32. Rf2 Ne3+ 33. Kd3 (33. Kd2 $142 Rd1+ 34. Ke2) 33... Nxd5 (33... c4+ $142 34. Kd4 Rc8) 34. Rg2 (34. Rfe2 {is a better defense.} Reb1 35. Rac2) 34... Re3+ {Black is clearly winning.} 35. Kd2 Rxf3 36. Rxg7+ Kc6 {Threatens to win with ...Rf2+.} 37. Rc2 Rb1 {Strongly threatening ...Rf2+.} 38. Rg2 {To avoid Rf2+} Ne3 {Weighted Error Value: White=0.52/Black=0.21 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.17"]
[White "Nitin, S.."]
[Black "Arnav Maheshwari"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2427"]
[BlackElo "1934"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,94,29,30,29,27,28,30,16,38,25,27,23,55,43,61,47,106,106,87,96,105,88,101,58,85,69,62,65,63,47,40,37,29,26,68,5,25,21,151,161,222,202,202,173,163,181,174,141,136,135,173,130,129,130,166,166,160,160,178,166,345,181,181,166,166,166,267,267,276,283,366,243,1140,1083,5897,5809,29994,29995,29995,29996,29996,29997,29997,29998,29998,29999,29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. h3 Nc6 6. Qe3 {B53: Sicilian: 2...d6: Lines with Qxd4.} Nf6 7. c4 g6 8. Be2 {White has an edge.} Bg7 9. Nc3 O-O 10. O-O Be6 11. Rd1 Qc7 12. Rb1 {[#]} (12. Nd5 {is interesting.} Qd8 13. Bd2 Nd7 14. Rab1 f6 15. b3) 12... Ne5 $146 ({Black should try} 12... b5 $14) ({Predecessor:} 12... Na5 13. b3 Rfc8 14. Bb2 Rab8 15. Rbc1 b6 16. Nd5 Bxd5 17. cxd5 Qa7 18. b4 Nb7 {½-½ (68) Mazi,L (2327)-Berke,A (2179) Grohote 2021}) 13. Nxe5 $16 dxe5 14. b3 Rfd8 15. Bb2 Rac8 16. Na4 (16. Nd5 $16 Bxd5 17. exd5) 16... Nd7 17. Rbc1 h5 18. Ba3 Re8 19. c5 Kh7 20. Qf3 {[%cal Oc5c6]} Bh6 21. Rc3 {[%cal Oc5c6]} Nb8 (21... Nf6 $11 {was preferrable.}) 22. Bc4 (22. Nb6 $14) 22... Bxc4 $11 23. Rxc4 {aiming for Nb6.} e6 {[#]} (23... Kg7 $1 $11 {keeps the balance.}) 24. c6 $1 $16 {[%cal Od1d7] Rd7! is the strong threat.} bxc6 (24... Rcd8 {was worth a try.}) 25. Bd6 $18 Qa7 26. Bxe5 Bg7 27. Bxg7 Kxg7 28. Nc5 e5 29. Qc3 $36 {[%mdl 2048] White is on the roll. White is much more active.} ({But not} 29. Rd6 Qe7 30. Rd2 Red8 $16) 29... Kg8 30. Qa5 (30. Rb4 $18 {And now Rb7 would win.} Qe7 31. Rb7) 30... Qe7 $16 31. Rc2 Rcd8 32. Rcd2 Rxd2 33. Rxd2 Qg5 34. Rd1 Qf4 $2 (34... Qe7 35. Rd3 Rc8) 35. Qc3 (35. Qc7 $142) 35... Qg5 36. b4 h4 37. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Qh5 (37... Kg7 $142 38. Rd6 Qf4) 38. Qd3 $18 Kg7 39. a5 Re7 40. Rd2 {[#] Threatens to win with Qd8.} Qg5 $2 (40... Re8 41. Nxa6 Nxa6) 41. Qd8 Qf4 42. Qxe7 {Threatening mate with Ne6+.} Qxd2 43. Ne6+ {White mates.} Kh7 44. Qxf7+ Kh6 45. Qf8+ Kh5 46. Qh8+ Qh6 47. Qxe5+ g5 48. Nf4# {Weighted Error Value: White=0.16 (very precise) /Black=0.39} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.18"]
[White "Pradip, Ghosh"]
[Black "Gholami Orimi, Mahdi"]
[Result "0-1"]
[ECO "C26"]
[WhiteElo "1974"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,38,-22,-17,-18,-13,-21,-13,-34,-21,-28,-25,-41,-47,-30,-16,-70,-53,-63,-66,-62,-58,-65,-66,-207,-204,-200,-197,-371,-388,-358,-354]} 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Nge2 Nxc3 6. Nxc3 {C26: Vienna Game: 2...Nf6, sidelines .} Nc6 7. Bg2 Be6 8. d3 {The position is equal.} Qd7 9. Be3 {[#]} h5 $146 {[%cal Bh7h5,Bh5h4,Bh4h3][%mdl 32]} ({Predecessor:} 9... O-O-O 10. Qd2 h5 11. O-O-O Bb4 12. f4 exf4 13. Bxf4 Nd4 14. Kb1 Nb5 15. Rhe1 Bxc3 16. bxc3 {1-0 (48) Jacobsen,F (2046)-Kovachev,D (2289) Oslo 2014}) 10. a3 h4 11. Qd2 h3 (11... O-O-O {is interesting.} 12. O-O-O h3 13. Be4 Nd4 14. Rhf1 f5) 12. Bf3 (12. Be4 $1 $11) 12... Nd4 $36 {[%mdl 2048] Black has good play.} 13. Bxd4 ({Avoid the trap} 13. Bxb7 $2 Rb8 14. Bxd4 exd4 $19) 13... exd4 14. Ne4 O-O-O $1 15. O-O Bd5 $1 16. Qf4 {This move loses the game for White.} (16. Qd1 $15) 16... f5 $19 17. Nd2 {[#]} Bd6 $1 18. Qxd4 (18. Qg5 Bxf3 19. Nxf3) 18... Bxf3 19. Nxf3 Qc6 $1 {[%csl LRc2,LRf3] Weighted Error Value: White=0.34/Black=0.02 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.19"]
[White "Gusain, Himal"]
[Black "Imtiaz, Islam Bora"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2408"]
[BlackElo "2004"]
[Annotator "RC"]
[PlyCount "151"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 c5 6. c4 d6 7. d4 cxd4 8. Nxd4 d5 9. O-O dxc4 10. bxc4 Qb6 11. Qb3 Nfd7 12. Rd1 Nc6 13. Nxc6 Bxb2 14. Nxe7+ Kg7 15. Nxc8 Qxb3 16. axb3 Bxa1 17. Bxb7 Raxc8 18. Bxc8 Nc5 19. Bg4 Nxb3 20. Na3 Bf6 21. Rb1 Nc5 22. Rb5 Be7 23. Nc2 a6 24. Ra5 Rb8 25. Kg2 Bf8 26. Bf3 Rb2 27. Ne1 Rb4 28. Nd3 Rxc4 29. Nxc5 Rxc5 30. Rxa6 h5 31. Ra7 Re5 32. e3 Re7 33. Ra2 Rc7 34. Bd5 Be7 35. e4 h4 36. e5 hxg3 37. hxg3 f6 38. exf6+ Bxf6 39. Kh3 Rd7 40. Be4 Re7 41. Ra4 g5 42. Kg4 Re5 43. f3 Re7 44. Rc4 Re5 45. Rc6 Re7 46. Bd5 Ra7 47. Be6 Ra4+ 48. Bc4 Ra7 49. Rc8 Be7 50. Kh5 Bf6 51. Rg8+ Kh7 52. Rg6 Be7 53. Bd3 Kh8 54. Be4 Rb7 55. Rh6+ Kg8 56. Rh7 Ra7 57. Kg4 Kf8 58. Bd5 Ra5 59. Rf7+ Ke8 60. Rf5 Ra4+ 61. Kh5 Ra6 62. Bc4 Rf6 63. Bb5+ Kf8 64. Kxg5 Rxf5+ 65. Kxf5 Kg7 66. Ke6 Bd8 67. f4 Bc7 68. Bd3 Bb8 69. Bb5 Bc7 70. Be8 Bb8 71. Kf5 Ba7 72. Bh5 Bf2 73. g4 Be3 74. g5 Bc1 75. Kg4 Bd2 76. f5 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.15"]
[Round "3.20"]
[White "Shahil Dey"]
[Black "Trailokya, Nanda"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2400"]
[BlackElo "1973"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,60,36,43,66,21,27,23,45,36,36,39,42,33,56,0,0,10,14,11,31,20,21,0,21,-18,7,8,25,0,37,19,23,37,45,-7,93,110,509,517,566,-306,82,48,1034]} 1. e4 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. d4 cxd4 5. Nxd4 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 {8...Bd7 scores better than 8...h6.} 9. f3 Rc8 10. Kb1 b5 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7.} 11. Nxc6 (11. g4 $14 {was preferrable.}) 11... Bxc6 $11 12. Ne2 {[#]} Qb6 $146 {White has an edge.} ({Predecessor:} 12... Be7 13. Nd4 Bd7 14. h4 h5 15. Bd3 Qb6 16. Be3 Qc7 17. Bg5 Rb8 18. f4 b4 {1-0 (49) Macovei,A (2453)-Harsha,B (2509) Chess.com INT 2020}) 13. Nd4 Bb7 14. g4 Nd7 15. Bg2 Ne5 16. Rhe1 (16. b3 $1 $14) 16... h6 17. Bh4 g5 18. Bf2 {[%cal Od4e6]} Qd8 19. h4 Be7 20. Rh1 Bf6 21. b3 Rg8 (21... Ng6 {looks sharper.} 22. hxg5 hxg5 23. Rxh8+ Bxh8 24. Bf1 Nf4) 22. hxg5 hxg5 23. Rh7 {[%cal Od4e6] Hoping for Nxe6!} Bc6 24. Ne2 d5 25. Qe1 {f4 is the strong threat.} Qc7 26. Ng3 ({Better is} 26. Nd4 $1 $14 Ba8 27. exd5 Bxd5 28. Bg3) 26... dxe4 {[#]} (26... Bb7 $11 {keeps the balance.} 27. Qd2 Nd7) 27. Nh5 $1 $16 ({Of course not} 27. Nxe4 $6 Bxe4 28. Qxe4 Nd7 $15) 27... Bh8 {[%mdl 8192] [#]} (27... Be7 $16) 28. Bc5 $1 $18 {[%cal Oh7h8] White threatens Rxh8! and mate.} Nd7 29. Bf2 {[%mdl 8192]} (29. Bd6 $18 Qa7 30. fxe4) 29... Ne5 $2 ({Not} 29... exf3 $2 30. Bg3 Qb7 31. Qf2 $19) (29... Bb7 $19 {[%csl Gc8][%cal Rc7c2]} 30. c4 exf3) 30. fxe4 {Threatens to win with Bc5. White is more active.} Ra8 $2 {[%mdl 8192] Weighted Error Value: White=0.34/Black=0.87} (30... Ba8 $14 31. Qd2 Rd8) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.1"]
[White "Ponkratov, Pavel"]
[Black "Shyaamnikhil P"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2641"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,85,28,39,29,41,34,52,46,53,13,48,52,36,38,34,32,55,-42,59,0,0,0,0,-19,-6,-15,-10,-8,-22,-15,-16,-16,-8,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,-27,20,0,52,-34,33,-3,-1,-2,-8,-4,-4,0,-8,-2,-9,-89,-47,-33,-42,-302,-284,-534,-83,-79,-87,-71,-65,-66]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 7. g4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Qb6 8. Nb3 e6 9. g5 {White is slightly better.} Nd7 {[#]} 10. Bg2 $146 ({Predecessor:} 10. h4 Qc7 11. f4 b5 12. a3 Be7 13. Bg2 Bb7 14. h5 h6 15. g6 O-O 16. Be3 {0-1 (28) Andreikin,D (2728)-Korobov,A (2685) Yasnaya Polyana 2021}) 10... h6 11. gxh6 gxh6 12. Be3 Qc7 13. f4 b5 14. Qh5 (14. a3 $14) 14... Nb6 (14... Rg8 $15 15. Rg1 Bb7) 15. Bxb6 (15. O-O-O $1 $14) 15... Qxb6 $11 16. O-O-O Rg8 17. Rd2 {And now e5 would win.} Bb7 {White should prevent ...b4.} 18. f5 Rg5 19. Qe2 b4 $1 20. Nd1 a5 $1 {Strongly threatening ...a4.} 21. fxe6 fxe6 {aiming for ...a4.} 22. h4 $132 {[%mdl 2048] White is fighting back} Re5 23. Kb1 Ba6 24. Qf3 O-O-O 25. Nc1 Kb8 26. Nd3 Bxd3 27. Qxd3 h5 28. Rf2 {[%cal Of2f8,Bd2f2,Bf2f7,Bf7h7][%mdl 32] Threatens to win with Rxf8!} Be7 29. Rf7 Rf8 (29... Rc5 $142 30. Rh7 Ne5) 30. Rh7 Rg8 (30... a4 $11) 31. Ne3 (31. Bf3 $1 $14) 31... Rc5 ({Black should try} 31... d5 $15) 32. Qd2 {[%cal Oe4e5] [#]} (32. Bf1 $5 {[%cal Re3c4]}) 32... Rc3 $1 33. Nd1 Rcg3 34. Bf1 Qc5 35. Be2 Rg1 36. Rxg1 {The board is on fire.} ({Of course not} 36. Rxh5 Rxh1 37. Rxc5 dxc5 $17) 36... Rxg1 37. Bxh5 (37. Qd3 $11 {keeps the balance.}) 37... Bf6 (37... Bxh4 $17 38. e5 Qxe5) 38. Qd3 Bg7 {Hoping for ...Ne5.} 39. a4 $2 {[%mdl 8192] [#]} ({Don't blunder} 39. Qa6 $2 Qd4 $1 40. Qb5+ Kc7 41. Rxg7+ Qxg7 $19) (39. Be2 $1 $15) 39... bxa3 $1 $19 40. Qb3+ (40. Qxa3 {was called for.} Nb4 41. c3 Qxh5 42. Qxb4+ axb4 43. Rxh5 Rxd1+ 44. Kc2) 40... Qb4 $2 (40... Nb4 $19 41. bxa3 {[#]} Qxh5 $3 {[%mdl 512]} 42. Qxb4+ axb4 43. Rxh5 Rxd1+ 44. Ka2 Ra1+ 45. Kb3 bxa3) 41. bxa3 Qxb3+ 42. cxb3 Nd4 43. b4 {Weighted Error Value: White=0.32/Black=0.25 (precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Nitin, S.."]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2615"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,0,2,13,0,-11,0,-8,21,-4,51,41,60,70,101,35,38,44,34,35,31,31,42,8,31,19,33,29,93,94,94,95,89,50,102,79,132,64,58,56,47,39,98,90,107,89,87,98,143,144,150,136,247,250,783,783,783,783]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 5. c4 g6 6. Nc3 {B53: Sicilian: 2...d6: Lines with Qxd4.} Bg7 7. h3 O-O 8. Qe3 {The position is equal.} Nbd7 9. Be2 {[#]} Nb6 $146 ({Black should play} 9... b6 $11) ({Predecessor:} 9... b6 10. O-O Bb7 11. Rd1 Qb8 12. Rb1 Re8 13. b4 a6 14. Bb2 e6 15. Rd2 Qc7 {1-0 (40) Styazhkina,A (2289)-Paehtz,E (2475) Moscow 2019}) 10. Rb1 $14 Bd7 11. b3 Nh5 12. Nd2 (12. O-O $16) 12... Nf4 13. Qxf4 Bxc3 14. Qe3 Bg7 15. O-O Qc7 16. Ba3 Bc6 17. Bb2 e5 18. Rbd1 f5 (18... Rfd8 $11 {keeps the balance.}) 19. c5 $16 dxc5 20. Qxc5 Rac8 21. Bf3 Kh8 (21... Rfd8 $14) 22. Qa5 Rcd8 ({Better is} 22... Nd7 23. Qxc7 (23. Qxa7 Ra8 $11) 23... Rxc7) 23. Ba3 ({Avoid the trap} 23. Qxa7 $2 Ra8 24. Qxa8 Rxa8 $19) (23. exf5 $16 Rxf5 24. Ne4 (24. Qxa7 $2 Ra8 $19)) 23... Rfe8 $14 24. Nc4 {And now Bd6 would win.} (24. Qxa7 $2 Ra8 25. Bd6 Qd8 $19) 24... fxe4 25. Be2 {[%cal Bf3e2,Be2g4,Bg4c8][%mdl 32]} Rd4 (25... Rd5 $14 26. Bc5 (26. Qxa7 Nxc4 27. Rxd5 Nxa3 $11) 26... Bh6) 26. Bd6 $16 Qf7 {[%cal Rb6c4]} 27. Bxe5 Rxd1 28. Rxd1 {[#] Nd6 is the strong threat.} Rf8 (28... Nxc4 $142 29. Bxc4 Qe7 30. Bxg7+ Kxg7) 29. Qc5 Nc8 30. Bg4 {Strongly threatening Bxc8.} e3 (30... Qe7 $16 31. Bxg7+ Kxg7) 31. Qxe3 $18 {Hoping for Bxc8. Active counter play!} Bb5 $2 (31... Qe7 32. Bxc8 Rxc8 33. Bxg7+ Qxg7 34. Qxa7 Kg8) 32. Bxc8 Bxc4 {[#]} 33. Rd7 $1 {Weighted Error Value: White=0.12 (very precise) /Black=0.24 (precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.3"]
[White "Abdisalimov, Abdimalik"]
[Black "Stany, G.A."]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2435"]
[BlackElo "2517"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,58,0,5,0,0,0,-3,-11,0,0,0,-3,0,0,0,0,29,3,15,12,14,14,18,17,16,18,27,9,9,9,9,9,9,9,9,9,10]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 Bf5 7. Nf3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. O-O O-O 12. Rfc1 Rac8 13. Na4 {D14: Slav Defence: Exchange variation with ...Bf5.} Rc7 14. Nc5 Rfc8 15. Rc3 {[#]} Na5 $146 ({Predecessor:} 15... Nb4 16. Qb5 b6 17. Qxb4 bxc5 18. dxc5 Rxc5 19. Rac1 Rxc3 20. Rxc3 Qxb4 21. Rxc8+ Qf8 22. Rxf8+ Kxf8 {0-1 (85) Lundvik,J (2208)-Hjelm,N (2313) Sweden 2012}) 16. Rac1 b6 17. Qa6 {[%cal Oc5e6] [#] And now Nxe6! would win.} h6 18. Ne5 {[%cal Oc5e6] Strongly threatening Nxe6!} Ne8 19. Nb3 Rxc3 20. bxc3 Nxb3 21. axb3 Rc7 22. c4 Qb4 23. Qa2 dxc4 24. bxc4 Nd6 {[%cal Be8d6,Bd6e4,Be4d2][%mdl 32]} 25. g3 {aiming for Nd3.} Ne4 {The position is equal.} 26. Kg2 f6 27. Nd3 Qd2 28. Qxd2 Nxd2 29. c5 bxc5 {An even fight not without its subleties.  Weighted Error Value: White=0.02 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.4"]
[White "Iniyan, P."]
[Black "Gusain, Himal"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2516"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "224"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,224,-18,-14,-20,0,-62,7,0,8,1,68,0,36,37,39,51,70,58,40,48,70,40,75,57,97,95,209,209,194,196,189,186,196,176,186,147,150,133,118,117,148,141,141,141,584,560,321,-48,-43,-38,-40,-45,-42,-50,-37,-45,-50,-41,-32,-45,-28,-69,-69,-69,-69,-69,-41,-69,-69,-167,-156,-156,-156,-310,-302,-273,-294,-1106,-1010,-793,-374,-29963,-29963,-6609,-5600,-29966,-29968,-29969,-29971,-29972,-29973,-29973,-29974,-29974,-29975,-29975,-29976,-29976,-29977,-29977,-29977,-29977,-29978,-29978,-29979,-29979,-29972,-29969,-29972,-29969,-29974,-29976,-29977,-29977,-29978,-29980,-29977,-29977,-29978,-29979,-29980,-29980,-29977,-29977,-29974,-29973,-29975,-29979,-29980,-29980,-29979,-29979,-29978,-29978,-29979,-29979,-29977,-29977,-29977,-29977,-29978,-29977,-29978,-29979,-29975,-29975,-29977,-29976,0,-29956,0,-29975,0,-29973,0,-29977,-29979,-29979,-29980,-29979,-29978,-29978,-29977,-29980,-29981,-29981,-29982,-29982,-29980,-29979,-29980,-29980,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. g3 dxc4 5. Bg2 b5 6. O-O Bb7 7. Nc3 Nd7 8. a4 a6 $1 9. Ne5 {D30: Queen's Gambit Declined: Systems without Nc3.} Qc8 10. b3 (10. Ne4 $11) 10... cxb3 ({Black should try} 10... b4 $15 11. Ne4 Nxe5 12. dxe5 cxb3) 11. Qxb3 $11 Ngf6 12. Bg5 {[%cal Ra4b5] [#]} ({Much worse is} 12. axb5 cxb5 13. Bf4 Bxg2 14. Kxg2 b4 $15) 12... b4 $146 (12... Nxe5 $11 13. dxe5 Nd7) ({Predecessor:} 12... Nxe5 13. dxe5 Nd5 14. axb5 axb5 15. Rxa8 Qxa8 16. Nxd5 exd5 17. e6 f6 18. Bf4 Be7 {0-1 (27) Dev,S (2248)-Timofeev,A (2574) Chess.com INT 2022}) 13. Nxd7 {White is much more active. Black has bad knights.} ({Better is} 13. Bxf6 $14 gxf6 14. Nxd7 Qxd7 15. Ne4) 13... Qxd7 14. Bxf6 gxf6 15. Ne4 Be7 (15... Qxd4 $2 16. Rad1 Qe5 17. f4 $18 (17. Qd3 Qc7 $16)) 16. Nc5 Bxc5 17. dxc5 a5 18. Rad1 {[%mdl 1024] White has compensation.} Qe7 19. Rd6 O-O 20. Rfd1 $1 $36 {[%mdl 2048] Black is under strong pressure.} Rfd8 {Inhibits Rd7.} (20... Ra7 $16 {is a better defense.}) 21. Qd3 $18 {[%cal Rd6d8]} Rxd6 22. cxd6 Qd7 23. Qd4 c5 24. Qxf6 Qxa4 25. Rd3 {The board is on fire.} Bxg2 26. Kxg2 $16 {[%mdl 4096] Endgame KQR-KQR} Qd7 27. Qg5+ Kh8 28. Qxc5 f6 {Prevents Qe5.} (28... Qb7+ $2 29. f3 Qd7 30. Qe5+ f6 31. Qxf6+ Qg7 32. Qxe6 $18) 29. Qc7 Ra7 $2 {[%mdl 8192]} (29... Rd8 $16 {is a better chance.} 30. Qxa5 Rb8) 30. Qb8+ $1 $18 Kg7 {White must now prevent ...Qc6+.} 31. Rd4 $2 (31. f3 $18 b3 32. Rxb3) 31... Qc6+ $1 $15 (31... Qb7+ $2 32. Qxb7+ Rxb7 33. d7 $18) 32. f3 Ra8 33. Rc4 $1 {[#]} Qxf3+ $1 34. Kxf3 {White wants to mate with Qb7+.} Rxb8 {KR-KR} 35. Rc7+ Kg6 36. d7 $1 {Intending Rc8 and mate.} Rd8 37. Ra7 $1 e5 38. Ke4 (38. g4 $1 $11 {should be considered.}) 38... b3 $1 {Strongly threatening ...b2.} 39. Kd3 $1 a4 {[%cal Oa4a3]} 40. Kc3 Kf5 41. Rxa4 Rxd7 {[%cal Od7d4] And now ...Rd4! would win.} 42. Kxb3 (42. Rb4 $1 $15) 42... Rd2 $19 43. Rh4 Rxe2 {...Rd2 is the strong threat.} 44. Rxh7 $2 (44. Kc3 $17) 44... Rd2 $1 45. Kc3 Rd6 {Hoping for ...Kg4.} 46. Rg7 (46. Rh4 Rd8 47. Kc4) 46... Ke4 $1 47. h4 Kf3 $1 {Threatens to win with ...e4.} 48. g4 $2 (48. h5 $19 Rc6+ 49. Kb2) 48... e4 49. Re7 {[#]} e3 $1 50. g5 fxg5 51. hxg5 e2 52. Rf7+ Ke3 53. Re7+ Kf2 54. Rf7+ Ke1 55. Kc2 Rc6+ 56. Kb2 Rg6 57. Rf5 Kd2 58. Rd5+ Ke3 59. Re5+ Kd3 60. Kb3 {[#]} Rxg5 $3 {[%mdl 512]} 61. Rxg5 e1=Q {KQ-KR} 62. Rd5+ Ke4 63. Rc5 Kd4 64. Rc4+ Kd3 65. Rc6 Qb1+ 66. Ka4 Qb7 67. Rc5 Qb6 68. Rc1 Kd2 69. Rc4 Qa6+ 70. Kb4 Kd3 71. Rc3+ Kd4 72. Rc2 Qb7+ 73. Ka5 Qb1 74. Rc7 Kd5 75. Ka4 Qe4+ 76. Kb3 Qd3+ 77. Kb4 Qd4+ 78. Kb5 Qb2+ 79. Ka4 Qa1+ 80. Kb4 Qe1+ 81. Kb3 Kd4 82. Rc4+ $1 Kd3 83. Rc6 $1 Qb1+ 84. Ka4 Qb7 85. Rc5 $1 Qa6+ 86. Kb4 Qb6+ 87. Rb5 Qd4+ 88. Ka5 Kc3 {[%cal Rd4a7]} 89. Rb6 Qc5+ 90. Ka6 Kc4 91. Kb7 Qd5+ 92. Kc7 Kc5 93. Ra6 {[#]} Qf7+ $2 (93... Qe4 $1 {mates} 94. Ra5+ Kb4 95. Ra6 Qe7+ 96. Kc6 Qe6+ 97. Kb7 Qd7+ 98. Kb8 Qd8+ 99. Kb7 Kb5 100. Ra7 Qd4 101. Kb8 Kb6 102. Rb7+ Ka6 103. Kc8 Qh8+ 104. Kc7 Qg7+ 105. Kd6 Kxb7 106. Kc5 Qg4 107. Kd5 Qf4 108. Kc5 Qd2 109. Kc4 Kc6 110. Kb3 Kc5 111. Ka3 Kc4 112. Ka4 Qb4#) 94. Kd8 $11 {The position is equal.} Qf8+ 95. Kd7 Qf5+ 96. Ke7 $1 Qg5+ 97. Kf7 {Threatening mate with Ra5+.} Qd5+ 98. Re6 $1 Qf5+ 99. Ke7 Kd5 100. Rd6+ Ke5 101. Rc6 Qh7+ 102. Ke8 Qh5+ 103. Ke7 {Rc5+ would kill now.} Qh4+ 104. Kf7 Qd8 105. Rc5+ Ke4 106. Rh5 Qd7+ 107. Kf6 Qd6+ 108. Kf7 Kf4 109. Kg7 Qe7+ 110. Kg6 Kg4 111. Rh6 Qf8 {( -> ...Qg8+)} 112. Kh7 {To avoid Qg8+} Qd8 {What a bad dream for Black.  Weighted Error Value: White=0.60/Black=0.17 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.5"]
[White "Gholami Orimi, Mahdi"]
[Black "Mosadeghpour, Masoud"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2420"]
[BlackElo "2511"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,61,21,0,-1,-14,-3,-43,-4,-1,40,33,19,11,13,7,13,0,0,0,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Nd2 O-O 6. Ngf3 dxc4 7. Qc2 (7. a3 $5 {[%cal Ra3b4]} Bxd2+ 8. Bxd2 $11) 7... a5 {E04: Open Catalan: 5 Nf3.} 8. O-O b5 $1 9. a3 Bxd2 {Black is slightly better.} 10. Nxd2 {[#]} Ra7 $146 (10... Nd5 $11 {was preferrable.}) ({Predecessor:} 10... c6 11. a4 Nd5 12. Ne4 Na6 13. Ng5 g6 14. Qe4 Ra7 15. Qh4 f6 16. Nf3 c3 {½-½ (37) Lopez Mulet,I (2302)-Tomczak,M (2387) Mamaia 2017}) 11. b3 $14 {[%cal Bb2b3,Bb3c4][%mdl 32]} Bb7 12. Bxb7 {The position is equal.} Rxb7 {[%cal Ba7b7,Bb7b5,Bb5b3][%mdl 32]} 13. bxc4 Qxd4 14. Bb2 Qg4 15. Bxf6 gxf6 16. Nb3 Nc6 17. cxb5 Rxb5 18. Qxc6 Rxb3 19. Rfe1 Qd4 20. Qxc7 Qe5 21. Qxe5 fxe5 $11 {[%mdl 4096] Endgame KRR-KRR} 22. Rec1 Rd8 23. Rc5 Rd5 24. Rxd5 exd5 {KR-KR} 25. Rc1 Rxa3 26. Rc5 Kg7 27. Rxd5 Kf6 28. Rd6+ Kg7 29. Rd5 Kf6 30. Rd6+ Kg7 31. Rd5 {An interesting draw.  Weighted Error Value: White=0.04 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.6"]
[White "Fawzy, Adham"]
[Black "Shahil Dey"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2476"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,63,19,0,11,20,16,0,0,13,0,0,3,0,0,-77,0,0,0,0,0,0,0,0,0,0,0,0,5,4,4,23,23,0,34,30,262,211,247,247,316,241,257,251,400,242,410,400,543,557,29973,29974,5557,5386]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qb6 {B94: Sicilian Najdorf: 6 Bg5 Nbd7.} 8. Bb3 e6 9. Bxf6 Nxf6 {The position is equal.} 10. Qd2 {10.f4 is not played anymore.} Nd7 11. O-O-O Nc5 12. Rhe1 {[%cal Od4f5]} Bd7 13. Nf5 O-O-O (13... exf5 14. exf5+ Kd8 15. Bxf7 $11 (15. Nd5 Nxb3+ 16. axb3 Qc5 $17)) (13... Nxb3+ $17 14. cxb3 exf5) 14. Nxd6+ $11 Bxd6 15. Qxd6 Nxb3+ {[#]} 16. axb3 $146 ({Predecessor:} 16. cxb3 Qxf2 17. Re2 Qh4 18. Na4 Bxa4 19. Rc2+ Bc6 20. Rxc6+ bxc6 21. Qxc6+ Kb8 22. Qb6+ Kc8 23. Qxa6+ Kb8 24. Qb6+ Kc8 25. Qa6+ Kb8 26. Qb6+ Kc8 {½-½ (26) Poetsch,H (2514)-Donchenko,A (2582) Saarbruecken 2015}) 16... Qxf2 17. Rf1 Qe3+ 18. Kb1 Bb5 19. Nxb5 {[%csl Gb5][%cal Rd6c7]} Rxd6 20. Nxd6+ Kb8 21. Rxf7 Rd8 $1 22. Ka2 $36 {[%mdl 2048] White has the initiative.} Qe2 23. Rd4 (23. Rxb7+ $2 Ka8 24. Rd4 {[#]} Rxd6 $1 $19 {[%mdl 512]}) 23... Qh5 $2 {Black cannot hold the game after this.} (23... b5 $11) 24. Rxb7+ $18 Ka8 {[%cal Od8d6] [#] aiming for ...Rxd6!} 25. Rdb4 $1 {[%cal Oe4e5]} Qc5 {[#]} (25... Rxd6 $2 26. Rb8+ Ka7 27. R4b7#) (25... Qxh2 $2 26. Nc4 Rc8 27. R7b6 $18) (25... Qa5+ 26. Ra4) 26. R7b6 $1 Qa5+ (26... Rxd6 $2 {leads to mate.} 27. Rb8+ Ka7 28. R4b7#) (26... Qxb4 27. Rxb4) 27. Kb1 {Hoping for c3.} Ka7 (27... Rxd6 $2 28. Rb8+ Ka7 29. R4b7#) (27... Qxb4 {was worth a try.} 28. Rxb4 Rxd6) 28. Rb7+ Ka8 {[#]} 29. c3 $1 Qh5 {White must now prevent ...Qd1+.} (29... Rxd6 $2 {gets mated.} 30. Rb8+ Ka7 31. R4b7#) (29... Qxb4 30. cxb4) 30. R4b6 {[%cal Rb6a6]} Qe2 31. Ka2 Qd3 32. e5 {Weighted Error Value: White=0.12 (very precise) /Black=0.72} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.7"]
[White "Ratnakaran, K.."]
[Black "Karthik Venkataraman"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2316"]
[BlackElo "2485"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,-1,12,-17,-23,-22,-19,-35,-12,-21,-17,-40,-41,-68,-61,-71,-66,-68,-58,-63,-56,-56,-44,-57,-55,-59,-21,-12,-25,-22,7,7,17,45,54,50,184,162,228,153,309,296,366,358,362,357,358,339,358,239,221,147,147,147,163,163,163,163,163,163,163,163,163,163,163,163,163,163,161,142,359,359,344,308,323,310,293,215,330,211]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 Nc6 5. Bd3 e5 {[#]} 6. c4 $146 {To avoid d5. B50: Sicilian: 2...d6, Miscellaneous.} ({Predecessor:} 6. Qe2 g6 7. a4 Bg7 8. Bc4 O-O 9. d3 a6 10. O-O Rb8 11. Na3 h6 12. Be3 Re8 13. Rfe1 {1-0 (32) Svidler,P (2723)-Giri,A (2764) chess24.com INT 2020}) 6... g6 7. Nc3 Bg7 8. a3 {The position is equal.} O-O 9. Rb1 Nh5 10. Nd5 Ne7 11. Bf1 Nxd5 12. cxd5 f5 13. d3 Nf6 14. Bg5 h6 15. Bxf6 Qxf6 16. Qc2 a5 17. Be2 a4 18. b4 axb3 19. Rxb3 Rf7 20. O-O h5 21. Nd2 Ra7 22. Nc4 Bd7 (22... Bf8 $14) 23. Rb6 $18 fxe4 (23... Qd8 {is a better defense.} 24. Qb2 (24. Rxd6 Rf6 $16) 24... Rf6 25. Rxb7 (25. Nxd6 Be8 $16) (25. Rxd6 b5 $14) 25... Rxb7 26. Qxb7 Bf8) 24. dxe4 {[%cal Bd3e4,Be4e5,Be5e6][%mdl 32]} Ba4 $2 (24... Bf8 $16 25. f4 exf4) 25. Qb1 $1 Rd7 26. f4 $1 exf4 27. e5 $1 Qg5 28. e6 Re7 (28... Bd4+ $2 29. Kh1 Rg7 30. Nxd6) 29. Qe4 ({Weaker is} 29. Rxd6 b5 30. Nd2 (30. Rd8+ Kh7 $15) 30... c4 $16) 29... Be8 30. Nxd6 Rxa3 31. Qxf4 {White is more active.} Qxd5 32. Nxe8 {Really sharp!} Qd4+ {[#]} 33. Qxd4 $1 Bxd4+ 34. Kh1 {And now Nf6+ would win.} Rxe8 35. Rxb7 Rc3 {[#]} 36. Bf3 $1 ({Don't do} 36. e7 $6 c4 $14) 36... Rxf3 37. Rxf3 Rxe6 {[%mdl 4096] Endgame KRR-KRB} 38. Ra3 {Intending Ra8+ and mate.} Kf8 39. g3 Bf6 $2 {This costs Black the game.} (39... Re7 $16 {was called for.} 40. Raa7 Re8) 40. Ra8+ Re8 41. Ra6 Be5 42. Rxg6 c4 43. Rc6 {Prevents Rc8. Threatens to win with Kg2.} c3 (43... Re7 {keeps fighting.}) 44. Kg2 {Weighted Error Value: White=0.11 (very precise) /Black=0.29 (precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.8"]
[White "Raahul V S"]
[Black "Sai Agni Jeevitesh, J."]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2478"]
[BlackElo "2316"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,16,18,10,30,33,30,18,25,24,36,33,58,40,36,0,0,0,0,0,9,-43,-40,-54,23,-76,-98,-78,-22,-41,-31,-183,-127,-127,-130,-134,-109,-106,-122,-505,-507,-596,-585,-925,-545,-555,-543,-517,-516,-518,-524,-498,-497]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 e6 6. Nh4 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} Be4 {6...dxc4 might become the main line.} 7. f3 Bg6 8. Nxg6 {White has an edge.} hxg6 9. Qb3 Qb6 10. c5 Qc7 11. Bf4 Qc8 12. e4 Nh5 $1 13. Ne2 Nxf4 14. Nxf4 Be7 15. Bd3 (15. exd5 $11 cxd5 16. Bb5+ Nc6 17. Nd3) 15... Nd7 $15 {[#]} 16. Qc3 $146 ({Predecessor:} 16. e5 Qc7 17. Qc3 g5 18. Ne2 O-O-O 19. O-O Rh6 20. b4 Rdh8 21. Rf2 f6 22. exf6 Bxf6 23. b5 cxb5 24. Bxb5 Nb8 25. Qe3 {½-½ (25) Almiron,A (2351)-Matsuura,E (2497) Caioba 2018}) 16... a5 (16... dxe4 $15 17. Bxe4 Qc7) 17. O-O (17. exd5 $1 $11 {keeps the balance.} exd5 18. Kf1) 17... e5 $1 $17 18. dxe5 {[#] aiming for e6.} Bxc5+ (18... d4 $1 $17 {[%cal Rd4c3]} 19. Qc4 (19. Qxd4 $2 Bxc5 20. Qxc5 Nxc5 $19) 19... Nxe5 20. Qxd4 Bf6) 19. Kh1 {e6 is the strong threat.} Bb4 $1 20. Qb3 ({Better is} 20. Qd4 $15 Bc5 21. Qc3) 20... Nc5 (20... Nxe5 $19 {Threatens to win with ...g5.} 21. exd5 g5 22. dxc6 gxf4) 21. Qc2 g5 22. Ne2 {[#]} Qh3 $1 {[%csl Gh8][%cal Rh3h2]} 23. Rf2 O-O-O $40 {[%mdl 128] Black attacks with force. Black is more active.} 24. Bb5 $2 {[%mdl 8192]} dxe4 $19 {And now ...Rd2 would win. Black is clearly winning.} (24... cxb5 25. a3 b6 26. axb4 axb4 27. Nd4 dxe4 28. Nxb5 $11) 25. Ng1 Qxg3 26. a3 {[#]} Rd2 $1 {[%mdl 512]} 27. Rxd2 Bxd2 28. Qxd2 Nb3 ({Stronger than} 28... cxb5 29. Rc1 b6 30. b4 Qxe5 31. bxc5 bxc5 32. h3 exf3 33. Qxa5 $11) 29. Qe2 Nxa1 30. Bxc6 Qxe5 {Weighted Error Value: White=0.73/Black=0.25 (precise)} ({Inferior is} 30... bxc6 31. Qa6+ Kd7 32. Qb7+ Ke8 33. Qb8+ Ke7 34. Qd6+ Ke8 35. Qb8+ Ke7 36. Qd6+ Ke8 37. Qb8+ $11) 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.9"]
[White "Kaustuv, Kundu"]
[Black "Mirzoev, Azer"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2308"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,74,0,13,-13,0,0,-11,-17,0,-22,6,0,31,22,43,29,39,18,35,16,21,10,15,21,20,13,21,0,12,0,8,10,26,0,0,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. c4 d4 6. d3 Ne7 7. e3 {A09: Réti Opening: 1 Nf3 d5 2 c4.} dxe3 8. fxe3 Nbc6 9. Nc3 O-O 10. a3 {[%cal Ba2a3,Ba3b4,Bb4b5][%mdl 32]} h6 11. Rb1 a5 12. b4 axb4 13. axb4 {[#]} Bf5 $146 ({Predecessor:} 13... Be6 14. b5 Na5 15. e4 Qd7 16. Nd5 Nxd5 17. cxd5 Bg4 18. Bd2 b6 19. Qc1 Kh7 {½-½ (44) Sredojevic,I (2386)-Nestorovic,N (2495) Kragujevac 2016}) 14. Ne1 Qd7 15. b5 Nd8 16. Bb2 Bh3 17. Bxh3 Qxh3 18. Ne4 Qe6 ({Don't do} 18... Ra2 19. Qb3 Ra8 20. Ba3 $14) 19. Nf3 (19. Nc2 {seems wilder.} f5 20. Nc5 Qd6 21. d4 c6 22. b6) 19... b6 20. Ra1 Rxa1 21. Qxa1 {[%cal Rb2e5]} f5 22. Ned2 {[%cal Rb2e5]} Nf7 {The position is equal.} 23. d4 exd4 24. exd4 Nc8 25. Re1 Qd7 26. d5 Bxb2 27. Qxb2 Re8 {Inhibits Re6.} 28. Rxe8+ Qxe8 29. Qf6 Kh7 30. Nd4 $40 {[%mdl 128] [#] Threatens to win with Ne6. White is up to no good.} Qe1+ 31. Nf1 Ng5 {( -> ...Nh3+)} 32. h4 $1 Nh3+ 33. Kg2 Qf2+ 34. Kxh3 {Really sharp!} Qxf1+ 35. Kh2 {[#] aiming for Qf7+.} Qf2+ 36. Kh3 {Hoping for Qf7+.} Qf1+ 37. Kh2 {Qf7+ is the strong threat.} Qf2+ {Weighted Error Value: White=0.05 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.10"]
[White "Aaryan Varshney"]
[Black "Krishna C R G"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2277"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,60,61,58,47,50,15,24,22,54,46,55,27,36,9,22,17,10,0,0,0,0,0,0,-49,-41,-36,-34,-53,-35,-40,-28,-28,-28,-35,-35,-35,-35,-37,-17,-41,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 {[%cal Bg1f3,Bf3e1,Be1d3,Bd3f2][%mdl 32]} O-O 6. Be2 Nbd7 7. O-O e5 8. Be3 c6 9. d5 c5 10. Ne1 Ne8 11. Nd3 f5 12. exf5 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} gxf5 13. f4 e4 {[#] And now ...Bxc3 would win.} 14. Nf2 {White has an edge.} Ndf6 15. h3 {[#]} Nc7 $146 {[%cal Ob7b5]} ({Predecessor:} 15... a6 16. a4 Kh8 17. g3 Rg8 18. Kg2 b6 19. Rh1 Ra7 20. h4 Re7 21. Nh3 h6 {0-1 (69) Hebert,J (2411)-Cuartas,C (2307) Montreal 2002}) 16. Qd2 h5 17. g3 Bd7 18. a3 a5 19. b3 Qe8 20. a4 {Prevents b5.} Qg6 21. Kh2 Kf7 22. h4 (22. Rac1 $11 {feels stronger.}) 22... Ng4+ 23. Bxg4 hxg4 24. Rae1 Bf6 25. Kg2 Na6 26. Na2 b6 27. Rh1 Qg7 28. Rc1 Rh8 29. Nd1 Rhe8 30. Ndc3 Rh8 {Weighted Error Value: White=0.10 (very precise) /Black=0.07 (flawless)} (30... Ke7 $15) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.11"]
[White "Das, Sayantan"]
[Black "Kumar, Gaurav"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2459"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,6,9,32,45,55,56,91,88,104,100,99,109,89,111,80,74,100,73,85,97,98,64,73,75,115,128,123,95,141,141,103,91,129,113,139,120,216,218,248,219,208,197,198,207,205,211,196,37,181,172,191,191,161,167,197,197,287,232,232,214,324,306,436,424,424,395,534,518]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. Nc3 b5 6. Bb3 Bc5 7. O-O d6 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 8. Nd5 Nd4 9. Nxd4 {[#]} exd4 $146 {White is slightly better.} ({Predecessor:} 9... Bxd4 10. c3 Ba7 11. Nxf6+ Qxf6 12. Bd5 Rb8 13. Bc6+ Bd7 14. Bxd7+ Kxd7 15. a4 b4 {½-½ (41) Kritz,L (2583)-Sevian,S (2531) Richardson 2015}) 10. d3 {aiming for Bg5.} c6 11. Nxf6+ Qxf6 12. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} Be6 13. f5 Bxb3 14. axb3 Kd7 15. Bf4 Kc7 16. Qh5 h6 {Prevents Bg5.} 17. Bg3 Rhf8 $1 18. Rfe1 Kb6 19. e5 $1 Qd8 20. Qg4 {White is more active.} Qg5 (20... dxe5 $142 21. Bxe5 (21. Rxe5 Bd6 $16) 21... Rg8) 21. Qf3 $1 $16 {[%cal Ob3b4] Threatens to win with b4!} (21. Qxg5 $6 hxg5 22. exd6 Rad8 $14) 21... dxe5 22. Bxe5 {And now Qf2 would win.} ({Don't take} 22. Rxe5 Bd6 $14) 22... Rfe8 23. Re4 g6 24. Rae1 ({Resist} 24. Bxd4 Bxd4+ 25. Rxd4 Qe3+ 26. Qxe3 Rxe3 $16) 24... Kb7 (24... gxf5 $16 25. Bc7+ Kxc7 26. Rxe8 Rxe8 27. Rxe8 Qc1+ 28. Qf1 Qxc2) 25. fxg6 $18 fxg6 26. Bf4 Rxe4 27. Rxe4 $40 {[%mdl 128] White attacks with force.} Qf6 28. Bxh6 Qxf3 29. gxf3 {[%mdl 4096] Endgame KRB-KRB} a5 30. Bd2 $2 (30. Rg4 $18) 30... b4 {A mistake that costs the game.} (30... a4 $1 $14) 31. Re2 a4 {[#]} 32. bxa4 Rxa4 {[#]} 33. b3 $1 Ra2 34. Bf4 Kb6 (34... Kc8 {was called for.} 35. h4 Kd7) 35. Be5 Kb7 36. Kg2 Bb6 (36... Kc8 $142 37. Kg3 Kd7) 37. f4 ({Weaker is} 37. Bd6 c5 $16) 37... c5 (37... Ra8 {was worth a try.} 38. Kf3 Re8) 38. Kf3 Bd8 39. Rg2 Be7 40. Rxg6 {Weighted Error Value: White=0.15 (very precise) /Black=0.35} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.12"]
[White "Arnab Debnath"]
[Black "Rios, Cristhian Camilo"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "1496"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,61,17,9,13,0,-3,0,20,0,11,6,15,16,18,0,0,0,16,7,7,12,61,-24,10,-78,-76,-133,-95,-209,-208,-281,-275,-245,-122,-409,-429,-376,-333,-572,-556,-1371,-1342,-1212,-1161,-29991,-29992,-29992,-29993,-29998,-29999,-29999]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. Nc3 e5 7. Be3 Qe7 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 8. Nd2 Nf6 9. h3 {Prevents Ng4.} Nd7 {The position is equal.} 10. a4 Nf8 11. a5 Ne6 12. Na4 O-O 13. Nb3 {[%cal Ra4c5]} c4 $1 14. dxc4 f5 {[#]} (14... Rd8 $5 {[%cal Rd8d1]} 15. Qe2 Nf4 16. Bxf4 exf4 $11) 15. exf5 $146 ({Predecessor:} 15. Kf1 Qh4 16. Nac5 f4 17. Bd2 Rd8 18. Qe1 Qe7 19. Nd3 Qf7 20. f3 Nf8 21. Nbc5 Qxc4 {1-0 (43) Matros,A (2433)-Bator,R (2480) Sweden 1999}) 15... gxf5 16. Qe2 Qf7 (16... b6 $11) 17. Nac5 ({White should play} 17. O-O-O $1 $14) 17... Re8 {[%mdl 1024] Black has compensation.} 18. O-O-O {[#]} (18. O-O $11) 18... b6 $1 $36 {[%mdl 2048] Black is really pushing.} 19. Nd3 (19. Nxe6 $142 Bxe6 20. c5) 19... c5 {...Ba6 is the strong threat.} 20. Bd2 {[#]} (20. f3 $17 {was necessary.}) 20... Ba6 $1 $19 21. Rde1 e4 ({Stronger than} 21... Bxc4 22. Nxe5 Bxe2 23. Nxf7 Kxf7 24. Rxe2 $11) 22. Nf4 Nd4 (22... Nxf4 $19 {and Black stays clearly on top.} 23. Bxf4 Bxc4) 23. Nxd4 {[%mdl 8192] White does not recover from this.} (23. Qh5 $17 {is a better defense.}) 23... cxd4 ({Inferior is} 23... Bxc4 24. Qh5 cxd4 25. Qxf7+ Kxf7 26. g4 $17) 24. b3 Qf8 25. Kb1 $2 (25. Kd1 {keeps fighting.} d3 26. cxd3) 25... bxa5 26. Bxa5 Qa3 {And now ...d3 would win.} 27. Qd2 {Inhibits d3.} Rab8 {[%cal Od4d3] ( -> ...d3!)} ({Wrong is} 27... d3 $2 28. Bc3 Reb8 29. Bxg7 dxc2+ 30. Qxc2 Rxb3+ 31. Bb2 $19) 28. Nh5 d3 {[%csl Gg7][%cal Ra3a1] Black mates.} 29. Nxg7 dxc2+ 30. Kxc2 Qxb3+ 31. Kc1 Qb1# {Weighted Error Value: White=0.81/Black=0.18 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.13"]
[White "Visakh N R"]
[Black "Srija, Seshadri"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2522"]
[BlackElo "2219"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,103,7,0,0,0,0,0,0,0,3,12,8,0,2,0,0,-15,0,-9,0,0,0,0,-7,-64,0,0,0,0,0,0,0,0,0,0,0,0,19,14,15,0,37,13,14,20,20,12,13,0,57,33,22,14,202,203,204,200,202,166,337,321,311,310,328,308,295,219,293,280,267,264,269,265,346,339,325,295,497,497,490,490,490,490,490,490,483,475,468,454,29974,29972]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Be2 {[%cal Bf1e2,Be2d3,Bd3f5][%mdl 32]} Bd6 7. O-O O-O 8. b3 b6 {D45: Semi-Slav: 5 e3.} 9. Bb2 Bb7 10. Bd3 Qe7 {The position is equal.} 11. Re1 c5 12. cxd5 exd5 {[#]} 13. Bf5 $146 {[%cal Oe3e4]} ({Predecessor:} 13. Nb5 Bb8 14. Bf5 g6 15. Bh3 Ne4 16. dxc5 bxc5 17. Nc3 Ndf6 18. Qc2 Bd6 19. Rac1 {1-0 (99) Gumularz,S (2515)-Mendonca,L (2557) Paleochora 2021}) 13... Rad8 14. Rc1 Rfe8 15. Ne2 Ne4 16. Ng3 Ndf6 17. Qc2 g6 18. Bxe4 dxe4 19. Nd2 (19. dxc5 $1 $11 Bxc5 20. Nd2) 19... Ng4 ({Black should try} 19... cxd4 $15 20. Bxd4 Ba3) 20. dxc5 $11 bxc5 21. h3 ({Much weaker is} 21. Qc3 Be5 22. Qc2 Qh4 $17) 21... Nxf2 22. Kxf2 {Ne2 is the strong threat.} Bxg3+ 23. Kxg3 {And now Nc4 would win.} Qd6+ 24. Kf2 $1 {Hoping for Red1.} Qxd2+ 25. Re2 {[%cal Be1e2,Be2c2,Bc2c5,Bc5b5][%mdl 32]} Qxc2 26. Rexc2 Rd3 27. Ba1 h5 28. Rxc5 {Black must now prevent Rc7.} Rd2+ 29. Kg1 Rxa2 30. Bd4 Ra3 31. Rb5 {[%mdl 1024] White has compensation.} Ba8 (31... Ba6 $11 32. Rb4 Ra8) 32. Rc7 a6 33. Re5 Rb8 {This move loses the game for Black.} (33... Rxe5 $11 {and Black is okay.} 34. Bxe5 f6) 34. Rec5 $1 $18 {White wants to mate with Rc8+.} Rf8 {[#]} 35. Be5 $1 {Threatens to win with Bd6.} Rxb3 {[#]} 36. Bd6 $1 Re8 (36... Rxe3 $2 37. Bxf8 Kxf8 38. Rc8+ Kg7 39. Rxa8 $18) (36... Rbb8 {was necessary.}) 37. Rc8 Rxc8 (37... Rb1+ $2 38. Kf2 Rxc8 39. Rxc8+ Kh7 40. Rxa8 $18) 38. Rxc8+ Kh7 39. Rxa8 Rxe3 {[%mdl 4096] Endgame KRB-KR} 40. Ra7 ({Resist} 40. Rxa6 $6 Rd3 41. Kf1 f5 $18) 40... g5 41. Rxf7+ Kg6 42. Rc7 Rd3 43. Bc5 g4 44. hxg4 hxg4 45. Kf2 g3+ $2 (45... a5 {keeps fighting.} 46. Be3 Ra3) 46. Ke2 Rc3 47. Bb6 Ra3 48. Be3 Ra1 49. Rc5 Ra2+ 50. Bd2 Ra3 51. Rc3 Rxc3 (51... Ra2 $18 52. Rxg3+ Kf6) 52. Bxc3 {Weighted Error Value: White=0.05 (flawless) /Black=0.47} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.14"]
[White "Deepan Chakkravarthy J."]
[Black "Joel Paul Ganta"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2520"]
[BlackElo "2004"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,82,15,16,15,8,9,18,37,28,25,35,31,8,63,55,52,41,51,42,51,61,83,84,167,157,166,167,154,173,158,148,156,157,156,156,153,143,189,180,181,165,181,188,178,185,178,180,542,414,369,31,2670,52,29,29,27,22,41,11,42,43,1713,78,1931,254,222,57,1194,-79,592,593,1359]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 Bd7 {[%cal Oc6d4] Strongly threatening ...Nxd4! D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. Qc2 dxc4 9. Bxc4 Ne7 {The position is equal.} 10. a3 Bxc3 11. Bxc3 Bc6 {[#] To avoid e4} 12. O-O $146 ({Predecessor:} 12. Qe2 Ne4 13. Rc1 Nxc3 14. Rxc3 Nf5 15. O-O Bxf3 16. Qxf3 c6 17. Bd3 Ne7 18. b4 {1-0 (50) Yuan,Q (2355)-Xie,K (1969) Daqing 2019}) 12... Be4 (12... Bxf3 $11 13. gxf3 Nf5) 13. Qe2 $14 Ned5 {[%cal Oc7c5]} 14. Bd2 Nd7 15. Rac1 c6 16. Rfd1 Qf6 {[#]} 17. Ne1 $1 e5 {[#]} (17... Rfd8 $16) 18. f3 $1 $18 Bg6 19. e4 N5b6 20. dxe5 Nxe5 21. Ba2 Rfe8 22. Qf2 Rad8 23. Bc3 Qe7 24. h3 Ned7 (24... Rxd1 $16 25. Rxd1 Na4) 25. Nd3 (25. Qd4 $6 Nf6 26. Qf2 Rxd1 27. Rxd1 c5 $16) 25... Kh8 26. Nf4 ({Don't play} 26. Qd4 f5) 26... Nf8 27. Bb3 f6 28. Bb4 {This bishop pair is nice.} Qc7 29. Qg3 Re5 $2 (29... Qe5 30. Rxd8 Rxd8) 30. Bxf8 Rxf8 31. Qf2 $2 ({Not} 31. Nxg6+ hxg6 32. Rc5 (32. Qxg6 $2 Rg5 $19) 32... g5 $18) (31. Ne6 $18 Qf7 32. Nxf8 Qxf8 33. Rc2) 31... h6 $2 {[%mdl 8192]} 32. Rd2 $2 (32. Nxg6+ $18 Kh7 33. Nxf8+ Kh8 34. Ng6+ Kh7 35. Nf8+ Kh8 36. Qg3) 32... Bf7 $14 33. Bxf7 $40 {[%mdl 128] White mounts an attack.} Qxf7 34. Rcd1 Kh7 35. Rd8 Qb3 36. R1d3 Qe6 $2 {[%mdl 8192]} 37. h4 $2 (37. Nxe6 $18 Rxd8 38. Nxd8) 37... f5 $2 {[%mdl 8192]} 38. R3d6 $2 (38. Nxe6 Rxd8 39. Nxd8) 38... Qf7 $18 39. Qd4 $2 (39. Rxf8 $18 Qxf8 40. Qd4) 39... Qe7 {[%mdl 8192]} (39... Rxd8 $14 40. Rxd8 Re8) 40. exf5 $2 ({White should try} 40. Ng6 $18 Qxd8 41. Rxd8 Rxd8 42. Qxd8 Kxg6 43. Qd6+ Kf7 44. Qxe5 fxe4 45. Qc7+ Ke8 46. fxe4) 40... Nd5 $2 {[%mdl 8192]} (40... Re1+ $17 {keeps the pressure on.} 41. Kh2 Qxh4+ 42. Nh3 Qxd4 43. Rxd4 Rxf5) 41. R8d7 Qe8 {Weighted Error Value: White=0.87/Black=0.48} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.15"]
[White "Karthikeyan, P.."]
[Black "Vaibhav Jayant Raut"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2396"]
[BlackElo "2198"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,71,18,12,0,0,0,0,-10,0,0,0,-9,0,0,0,0,10,23,34,34,32,35,123,112,125,116,178,145,153,150,160,152,147,147,117,125,133,124,226,231,235,159,166,92,818,818,809,779,4786,4529,1100,1052,935,752]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. d4 cxd4 8. cxd4 d5 9. e5 Ne4 10. Bxc6 bxc6 11. Be3 $1 {[%mdl 4] is currently scoring better than 11.Nbd2. B31: Sicilian: 2...Nc6 3 Bb5 g6.} f6 12. exf6 exf6 13. Qc1 {The position is equal.} Qb6 14. Nc3 {[#]} Re8 $146 ({Predecessor:} 14... Nxc3 15. Qxc3 a5 16. Rec1 Bd7 17. Ne1 Qb4 18. Qc2 Qb5 19. Qd2 Rfb8 20. b3 Bf5 {0-1 (38) Shuvalova,P (2516)-Maghsoodloo,P (2701) Chess.com INT 2022}) 15. h3 Bd7 16. Nxe4 dxe4 17. Nd2 {[%cal Od4d5]} f5 18. Nc4 Qa6 19. Ne5 Bxe5 20. dxe5 Be6 (20... Qb5 $14) 21. Bg5 $1 $16 Bd5 22. Bf6 Rab8 (22... Qa5 $16) 23. Qh6 {[%csl Gf6][%cal Rh6g7]} Qb7 {Prevents Qg7+.} 24. h4 {[%cal Bh3h4,Bh4h5][%mdl 32]} Qf7 25. h5 {Strongly threatening Re3.} Re6 (25... Rxb2 $2 26. Re3 Qf8 27. Qg5 $18) 26. Re3 {[%cal Be1e3,Be3g3,Bg3h3][%mdl 32] hxg6 is the strong threat.} Rxf6 (26... Rxb2 $2 27. hxg6 Qxg6 28. Rg3 Rxf6 29. exf6 Qxg3 30. fxg3 $18) 27. exf6 Qxf6 28. Rg3 {[%cal Rh5g6]} Bf7 (28... Qxb2 $2 29. hxg6 $1 Qxa1+ 30. Kh2 $18) (28... Qg7 $16 29. Qxg7+ Kxg7) 29. Rd1 $18 Rxb2 30. Qf4 {Inhibits Rb8.} ({Don't play} 30. Rd7 Qh4 31. Qc1 Qf6 32. Rxa7 Rb8) 30... Bd5 {[#]} (30... Rxa2 31. Qb8+ Kg7 32. h6+ Kxh6 33. Qf8+ Kh5 34. Rd6 $18) (30... Bxa2 $2 31. Rd6 Be6 32. hxg6 hxg6 33. Qh6 $18) 31. Qc7 {Inhibits Rb7.} ({White should try} 31. hxg6 $1 $18 hxg6 32. Qc7) 31... Rxa2 $2 {[%mdl 8192] Black cannot hold the game after this.} (31... f4 $16 32. Rg4 (32. hxg6 $2 fxg3 33. gxh7+ Kh8 $19) 32... g5) 32. hxg6 {White is clearly winning.} hxg6 33. Rh3 {Intending Qb8+ and mate.} Qg7 34. Qd8+ Kf7 35. Rxd5 {White threatens Qd7+ and mate.} Ra1+ 36. Rd1 {Weighted Error Value: White=0.10 (very precise) /Black=0.23 (precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.16"]
[White "Borgaonkar Akshay"]
[Black "Sidhant, Mohapatra"]
[Result "1/2-1/2"]
[ECO "C72"]
[WhiteElo "1985"]
[BlackElo "2359"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,100,16,55,4,7,2,13,14,6,9,9,0,62,29,21,30,40,14,11,17,16,0,3,0,7,16,24,24,77,56,79,84,95,50,52,49,63,66,362,100,209,195,163,145,433,162,573,563,781,489,478,469,580,312,290,295,256,85,84,100,112,69,137,137,137,149,138,146,145,150,155,141,140,75,214,215,4133,4133,4133,1781,887,879,872,850,838,67,67,67,67,67,476]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c4 g6 7. Nc3 {C72: Ruy Lopez: Deferred Steinitz: 5 0-0.} (7. d4 $14) 7... Bg7 $11 8. d3 Nge7 9. Nd5 {The position is equal.} O-O 10. Bg5 f6 11. Be3 {[#]} Nb8 $146 ({Black should try} 11... Kh8 $11) ({Predecessor:} 11... Be6 12. Rc1 Kh8 13. Qd2 g5 14. Kh1 Ng6 15. Ng1 Nd4 16. Bd1 c6 17. Nc3 b5 {½-½ (30) Longson,A (2338)-Nelson,J (2228) Gallipoli 2014}) 12. Nxe7+ Qxe7 13. c5 Kh8 14. Rc1 Nc6 15. Qb3 Rab8 16. cxd6 cxd6 {And now ...b5 would win.} 17. Bb6 f5 18. Rfe1 Rbc8 19. Qa3 g5 (19... Rfe8 $11) 20. exf5 $16 g4 21. Nd2 {Threatens to win with Ne4.} Rxf5 22. Ne4 (22. d4 $1 $16 {[%cal Rd4d5] Black must now prevent d5.} Bh6 23. Rcd1) 22... Bf8 $1 $14 23. Ng3 {aiming for Bxc6.} Rf6 24. d4 {Strongly threatening d5.} Rh6 $2 {[%mdl 8192]} (24... Bh6 $2 25. Rcd1 Bf8 26. dxe5 Nxe5 27. Rxe5 $1 {[%mdl 512]} dxe5 28. Qxe7 Bxe7 29. Bxd7 $18) (24... Qf7 $14) 25. dxe5 $2 (25. d5 $18) 25... Qh4 (25... dxe5 $16 {keeps fighting.} 26. Qxe7 Nxe7 27. Bxd7 Rxc1 28. Rxc1 Rxb6) 26. exd6 $1 $18 {Active counter play!} Qxh2+ (26... Bxd6 $2 27. Qc3+ Rf6 28. Qd2 $18) 27. Kf1 Bg7 $2 {[%mdl 8192]} (27... Rxd6 $16 28. Qb3 a5) 28. Be3 $2 (28. Qd3) 28... Rf6 $2 {[#]} (28... Re6 {is more resistant.}) 29. Bd4 $1 {[%mdl 512]} Rcf8 (29... b5 30. Bxf6) 30. Bxf6 Bxf6 31. Bxc6 bxc6 32. Rc5 Bd4 {[%csl Gd4][%cal Rf8f2]} 33. Re2 {Rh5 is the strong threat.} Qh6 (33... Bxc5 34. Qxc5 Qxg3 35. Qd4+ Kg8 36. Re7 Rxf2+ 37. Qxf2 Qd3+ 38. Kg1 Qd1+ 39. Qf1 Qxf1+ 40. Kxf1 $18) 34. Qb4 $2 (34. Rcc2 $18 {has better winning chances.}) 34... Qxd6 $16 {[%mdl 64] Pin} 35. Ne4 Bxc5 36. Qxc5 (36. Nxd6 $2 {too greedy.} Bxb4 37. Re7 Bxd6 $19) ({Better is} 36. Nxc5 $16 Bf5 37. Qc3+ (37. Nxa6 Qxb4 38. Nxb4 c5 $11) 37... Kg8 38. Kg1) 36... Qd1+ (36... Qxc5 $14 37. Nxc5 Bf5) 37. Re1 {[%cal Rc5f8]} Qd3+ 38. Kg1 {[%cal Rc5f8]} Re8 {[#]} 39. Re3 $1 $40 {[%mdl 128] White wants a kill.} Qd1+ (39... Qb1+ $2 40. Kh2 Qxb2 41. Ng3 $18) 40. Kh2 {White threatens Nf6 and mate.} Qd5 41. Qxd5 $1 cxd5 42. Nc5 (42. Nf6 $142 Rxe3 43. fxe3) 42... Rxe3 (42... d4 $16 {was worth a try.} 43. Rd3 Bf5 44. Rxd4 Re2) 43. fxe3 {[%mdl 4096] Endgame KB-KN} Bc8 (43... Bb5 44. Kg3 Kg7) 44. b4 $1 $18 Kg7 45. a4 $1 Kf6 {[#]} 46. b5 $1 axb5 47. axb5 h5 {[#]} 48. Kg3 $2 ({White has to play} 48. b6 $1 $18 {[%cal Rb6b7]} h4 49. b7 Bxb7 50. Nxb7) 48... Kg5 $14 {White is slightly better.} 49. b6 h4+ 50. Kf2 {Hoping for b7.} g3+ $2 {[%mdl 40960] Weighted Error Value: White=0.48/Black=0.58. An unexpected result.} (50... Kf5 $14) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.17"]
[White "Muhammed, Shuaau"]
[Black "Manish Anto Cristiano F"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1970"]
[BlackElo "2236"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,70,29,20,37,-8,-14,-16,29,0,0,0,48,-9,147,159,175,131,140,73,118,109,109,0,0,0,0,0,0,-23,-23,-19,0,0,0,0,0,0,0,0,0,-31,-38,-25,-26,-37,-10,-29,-36,-46,-60,-48,0,0,0,-631,-589]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Nbd7 9. g4 Be7 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 10. g5 (10. Qd2 $14 {should be considered.}) 10... Nh5 $11 11. Qd2 Nf4 (11... h6 {is more appropriate.}) 12. Bxf4 (12. O-O-O {looks sharper.} Bxg5 13. Qxd6 Be7 14. Qd2 O-O 15. Rg1) 12... exf4 13. O-O-O (13. Qxf4 Bxg5 14. Qxd6 Qf6 $17) 13... Ne5 {[#]} (13... Bxg5 $11 14. Qxd6 Qb8) 14. Nd4 $146 ({White should try} 14. h4 $14) ({Predecessor:} 14. h4 Nxf3 15. Qf2 Ne5 16. Qxf4 h6 17. Be2 Ng6 18. Qf2 hxg5 19. Nd4 gxh4 20. Rhg1 {1-0 (33) Bjerre,J (2503)-Travadon,L (2403) Budapest 2019}) 14... Bd7 $2 ({Better is} 14... Bxg5 $11 15. h4 Bxh4) 15. h4 $16 h6 16. gxh6 (16. Qxf4 hxg5 17. Qe3 Rxh4 $11) (16. Be2 $18) 16... Rxh6 17. h5 (17. Qxf4 $6 Bg5 18. hxg5 Rxh1 $14) (17. Bh3 $142) 17... Qa5 (17... Kf8 $142) 18. Kb1 (18. Qxf4 $2 {[#]} Bg5 $1 {[%mdl 512]} 19. Qxg5 Nd3+ $1 {[%mdl 512]} 20. Bxd3 Qxg5+ 21. Kb1 Rxh5 $19) 18... Nc6 19. Bh3 ({White should play} 19. Nb3 $16 Qe5 20. Nd5) 19... Bxh3 $11 20. Rxh3 {aiming for Nf5.} Nxd4 21. Qxd4 Bf6 22. Qa4+ ({Wrong is} 22. Qxd6 $2 Bxc3 23. Qd7+ Kf8 $19) 22... Qxa4 23. Nxa4 O-O-O 24. Nb6+ Kb8 25. c4 g6 26. Rdh1 $1 ({Much weaker is} 26. Nd5 Be5 $15) 26... Be5 27. hxg6 $1 Rxg6 28. R1h2 Ka7 29. Nd5 Rc8 30. b3 Rg1+ 31. Kc2 Rcg8 32. Rh7 Ra1 {Threatens to win with ...Rg3.} 33. Kd3 Rgg1 (33... Rg3 $15 34. Rf2 (34. Rxf7 $2 Rxf3+ 35. Ke2 Rg3 $19) 34... Rd1+ 35. Kc2 Rgg1) 34. Rxf7 Rgd1+ 35. Ke2 $2 {[%mdl 8192] [#]} (35. Rd2 $11) 35... Rxd5 $1 {[%mdl 512] Never resign too early!  Weighted Error Value: White=0.39/Black=0.21 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.18"]
[White "Dutta Samaritan"]
[Black "Divya Deshmukh"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1602"]
[BlackElo "2301"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,84,18,-10,13,-2,22,22,9,0,14,10,7,-66,-66,-74,45,50,56,70,59,62,60,35,37,33,31,41,115,110,99,106,102,68,66,65,66,69,67,7,7,4,10,0,0,0,43,28,34,34,40,27,17,0,0,0,0,9,8,0,0,0,0,0,0,0,40,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. g3 Nf6 4. d3 g6 5. Bg2 Bg7 6. O-O Nc6 7. c3 O-O 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3,Be3d5,Bd5f6][%mdl 32]} Rb8 9. a4 $1 {9.a4 scores better than 9.Re1.} b6 {A05: Réti Opening: 1 Nf3 Nf6.} 10. Re1 Ba6 11. d4 {[#]} e6 $146 {Inhibits d5.} ({Predecessor:} 11... cxd4 12. Nxd4 Nxd4 13. cxd4 e5 14. Nf3 Re8 15. d5 h6 16. b4 Bc8 17. Bf1 a6 {1-0 (55) Bravo Lutz,S (2221)-Isserman,R (2283) Germany 2016}) 12. Nf1 Qc7 13. Bf4 {With the idea dxc5.} e5 14. Bg5 ({Better is} 14. dxe5 $1 $11 dxe5 15. Bg5) 14... exd4 $1 $15 15. cxd4 {[%cal Oa4a5]} Nd7 (15... Rbe8 $17 16. dxc5 bxc5) 16. Ne3 $1 $14 Rbe8 (16... Nxd4 $2 17. Nxd4 (17. Nd5 Nxf3+ 18. Bxf3 Qb7 $18) 17... cxd4 18. Nd5 $18) 17. Nd5 Qb8 {[%cal Rc6d4]} 18. Bh3 Bc8 {[%cal Rc6d4]} 19. Bxd7 (19. Qd2 {is more complex.} f6 20. Bh6 Rf7 21. Bxg7 Kxg7 22. Bf1) 19... Bxd7 20. Nf6+ Bxf6 21. Bxf6 {[#] Hoping for Qd2.} Nxd4 (21... Re6 $14 22. Bg5 cxd4) 22. Nxd4 $16 cxd4 23. Qxd4 {Threatens to win with Bg7.} Re6 24. Bg7 {Strongly threatening Bh6.} Rfe8 $1 25. Bh8 {[%csl Gh8][%cal Rd4g7] White is much more active.} f6 $1 26. Bxf6 Bc6 {[%cal Rc6e4]} 27. Re3 ({White should play} 27. f3 $14) 27... Rxe4 $11 28. Rxe4 Rxe4 29. Qd2 Qf8 30. Rc1 Bb7 {[#]} (30... Qe8 $11) 31. Rc7 $1 $14 Qxf6 32. Rxb7 $11 {[%mdl 4096] Endgame And now Qh6 would win. KQR-KQR} Re7 33. Qd5+ (33. Rb8+ {is interesting.} Kg7 34. Rc8 Rd7 35. Rc6 Qe5 36. Rc4) 33... Kg7 $1 34. Rxe7+ Qxe7 {KQ-KQ} 35. Kg2 Qc7 36. b4 Kf6 37. h4 h5 38. Qg5+ Kg7 39. Qd5 a5 40. b5 Qc5 41. Qc6 Kf6 42. Qe8 Qd5+ {Weighted Error Value: White=0.14 (very precise) /Black=0.14 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.19"]
[White "Tahbaz, Arash"]
[Black "Iftikar Alom Mazumdar"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2469"]
[BlackElo "1748"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,71,38,25,39,25,24,15,26,29,30,11,50,48,39,34,35,17,27,14,52,36,125,122,128,133,139,147,150,128,138,87,104,39,154,154,154,154,150,150,143,125,131,104,193,184,293,279,646,647,735,706,932,884]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Bg2 O-O 7. O-O Bxd2 8. Qxd2 d6 9. Nc3 e5 10. d5 {10.Nd5 injects fresh life into this line.} Nb8 {[%cal Bc6b8,Bb8a6,Ba6c5,Bc5b3][%mdl 32]} 11. e4 a5 {E11: Bogo-Indian.} 12. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Na6 13. a3 Bg4 {[#] The position is equal.} 14. Rab1 $146 ({Predecessor:} 14. Qc2 c6 15. Nd2 Bd7 16. Qb2 Nc7 17. b4 b5 18. dxc6 Bxc6 19. Nd5 Bxd5 20. cxd5 {1-0 (53) Bocharov,D (2567)-Grebenschikova,N (2091) Ufa 2004}) 14... Nc5 15. Qe3 a4 16. b4 Nb3 17. Nxa4 Nd4 18. Nb2 Bxf3 19. Bxf3 Nc2 {Pair of Knights!} 20. Qc3 (20. Qd3 {is more complex.} Nd4 21. Ra1 Ra7 22. a4 Rfa8 23. Ra3) 20... Rxa3 (20... Nd4 $1 $14) 21. Qxc2 $16 Rxf3 22. Ra1 {Hoping for Kg2.} Nd7 23. Kg2 Rf6 24. Ra7 Rb8 25. Nd3 (25. Nd1 $142) 25... Rh6 26. c5 (26. f3 $16) 26... Nf6 ({Black should play} 26... f5 $1 $14) 27. f3 g5 28. Nf2 {To avoid g4} Rg6 29. h3 h5 30. Rc1 {[%cal Bf1c1,Bc1c7,Bc7f7][%mdl 32]} Ne8 31. Qa4 {White is much more active.} Kh7 (31... Qd8 $16 32. Qa5 Qd7) 32. Qb5 Ng7 (32... Qd8 {keeps fighting.} 33. Rxb7 Ra8) 33. Rxb7 $18 Ra8 {[#]} (33... Rc8 34. Ra7 Ne8) 34. cxd6 {White is clearly winning.} Qxd6 35. Rcxc7 Ra1 36. Rxf7 {Weighted Error Value: White=0.11 (very precise) /Black=0.44} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "4.20"]
[White "Saptarshi, Roy"]
[Black "Elangbam Shashikanta Singh"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2402"]
[BlackElo "1739"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,77,13,14,68,67,53,25,36,2,10,30,76,-60,22,27,74,76,104,23,293,300,327,327,375,314,441,442,432,393,393,365,491,257,254,149,346,359,356,350,291,195,195,145,500,497,481,312,304,310,396,397,357,361,349,255,739,481,770,734,1053,970,2075,1691,29986,29987]} 1. e4 d6 2. d4 c6 3. Nc3 Nd7 4. Be3 e5 5. Qd2 Ngf6 6. f3 Be7 7. O-O-O O-O 8. g4 a5 {B07: Pirc Defence: Miscellaneous Systems.} (8... b5 $11) 9. h4 {[%cal Bh2h4,Bh4h5][%mdl 32] White is more active.} b5 10. h5 {[#]} Ne8 $146 {White has an edge.} ({Predecessor:} 10... exd4 11. Bxd4 b4 12. Nce2 c5 13. Be3 Nb6 14. Ng3 a4 15. g5 Nfd7 16. Nf5 Ne5 17. Nxe7+ Qxe7 {0-1 (39) Shim Ng Min,F (1154)-Courteille,T (1051) LSS email 2015}) 11. dxe5 Nxe5 12. g5 a4 13. g6 (13. a3 $16) 13... fxg6 (13... b4 $1 $15 14. Nb1 a3) 14. hxg6 $11 {[%cal Of1b5] Strongly threatening Bxb5!} hxg6 {[#]} (14... b4 $11) 15. Bxb5 $1 $16 {[%cal Of3f4]} Be6 {[#]} (15... Nc7 16. Be2) 16. f4 Ng4 $2 {[%mdl 8192]} (16... Nc4 $2 17. Bxc4 Bxc4 18. Qh2 $18) (16... a3 $11 {and Black has nothing to worry.} 17. b3 (17. Qh2 $2 axb2+ 18. Kxb2 Qa5 $19) 17... cxb5 18. fxe5 (18. Qh2 Bf6 $17) 18... dxe5) 17. Bxc6 $18 Nxe3 18. Qxe3 Rc8 19. Bd5 Nc7 (19... Bxd5 {was necessary.} 20. Nxd5 Nf6) 20. Qh3 Qd7 21. Qh7+ Kf7 22. Rh6 Bf6 23. Qxg6+ (23. e5 $142 Nxd5 24. Qxg6+ (24. Nxd5 Bf5 $11) (24. exf6 Nxf6 25. Qxg6+ Kg8 $16) 24... Kg8 25. Qh7+ (25. Nxd5 $2 Bf5 $19) (25. exf6 Nxf6 26. Nge2 Bf5 $14) 25... Kf7 26. Nxd5) 23... Ke7 24. Rh7 (24. Bxe6 $6 Qxe6 25. f5 Qe5 $16) ({White should try} 24. Rh5 $18 Qe8 25. Qxe8+ Kxe8 26. Bxe6 (26. Nxa4 Bg4 $14) 26... Nxe6 27. Nb5 (27. Rxd6 Nxf4 28. Rf5 a3 $16)) 24... a3 $2 (24... Nxd5 $16 {keeps fighting.} 25. exd5 (25. Nxd5+ Bxd5 26. Rxd5 Qc6 $14) 25... Bg4) 25. e5 (25. bxa3 Bxc3 26. Bb3 Ne8 $11) 25... dxe5 {[#]} 26. fxe5 $1 Bxe5 27. Bf3 (27. Qg5+ $6 Bf6 28. Rxg7+ Rf7 29. Rxf7+ Bxf7 30. Qe3+ (30. Re1+ $2 Ne6 $19) 30... Kf8 31. Bxf7 (31. Qh6+ $2 Bg7 $19) 31... Qxf7 $18) 27... axb2+ 28. Kb1 {Chess con chili.} Bxc3 $4 {[%mdl 8192] Black cannot hold the game after this.} (28... Qxd1+ $16 29. Bxd1 (29. Nxd1 Bxa2+ 30. Kxa2 Ra8+ 31. Bxa8 Rxa8+) 29... Bxc3 30. Rxg7+ Bxg7 31. Qxg7+ Rf7 32. Qg5+ (32. Qxb2 Rf1 $11) 32... Kf8 33. Kxb2 Rb8+ 34. Kc1 Bxa2) 29. Rxd7+ Bxd7 30. Qg5+ Kd6 {aiming for ...Rf5.} 31. Rh5 {[%cal Bh7h5,Bh5d5,Bd5d2][%mdl 32] Black must now prevent Qc5+.} Ne6 {Inhibits Qc5+.} 32. Qg3+ (32. Qe3 Ke7 33. Ne2 Bb4 $18) 32... Ke7 33. Ne2 {Inhibits Rf4. Threatens to win with Rd5.} ({Don't play} 33. Rd5 Rf4 34. Bd1 Bc6 35. Qxc3 Bxd5 36. Qxc8 Rf1 37. Kxb2 Rxd1 $18) 33... Bf6 34. Rd5 {Threatening mate with Qd6+.} Rc6 {Prevents Qd6+.} (34... Rfd8 35. c3 Nc7 36. Re5+ (36. Kxb2 Nxd5 37. Bxd5 Re8 $11) (36. Rd3 Nb5 $18) 36... Be6) 35. Qe1 Rfc8 (35... Rc4 $142 36. Ng3 Rfc8) 36. Nf4 Be8 37. Rd2 Kf7 38. Bd5 {[%cal Rd5e6]} Bd7 39. Bxc6 {Weighted Error Value: White=0.56/Black=0.97} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.1"]
[White "Rios, Cristhian Camilo"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "B99"]
[WhiteElo "2449"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,63,0,0,3,0,0,0,0,0,0,0,0,0,0,0,7,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} b5 11. Bxf6 Nxf6 12. g5 Nd7 13. f5 {The position is equal.} O-O $1 {B99: Sicilian Najdorf: 6 Bg5 e6 7 f4 Be7 8 Qf3 Qc7 9 0-0-0 Nbd7.} 14. f6 gxf6 15. gxf6 Nxf6 16. e5 $1 dxe5 17. Nc6 (17. Qxa8 $2 exd4 18. Rg1+ (18. Rxd4 $2 Bb7 $19) 18... Kh8 19. Nxb5 axb5 $19) 17... Bb7 18. Qg3+ $1 Kh8 $1 19. Nxe5 Bd8 $132 {[%mdl 2048] [#] Black is not keeping still} 20. Rxd8 $1 Raxd8 21. Rg1 {[%csl Gg1][%cal Rg3g7]} Ne8 {Inhibits Qg7+. aiming for ...b4.} 22. Qg5 $1 {[%cal Of1b5] [#] Strongly threatening Bxb5!} f5 $146 {[%cal Oc7e5]} ({Predecessor:} 22... b4 23. Bb5 f6 24. Qh6 Ng7 25. Ng6+ Kg8 26. Nxf8 Rxf8 27. Bd3 f5 28. Na4 Kh8 29. Nc5 Bc8 30. Nxa6 {½-½ (30) Burridge,R (2043)-Williamson,D (2276) ICCF email 2016}) 23. Qh6 $1 {[%csl LRe6,LRf8][%cal Rh6f8] The board is on fire.} Ng7 $1 (23... Qc5 $2 {[#]} 24. b4 $1 {[%mdl 512]} Rd7 25. bxc5 $18) 24. Ng6+ {Pair of Knights!} Kg8 25. Nxf8 Rxf8 26. Qxe6+ $1 Kh8 27. Qh6 b4 28. Nd1 {[%cal Bc3d1,Bd1e3,Be3c4][%mdl 32]} Be4 {[%csl Ge4][%cal Rc7c2] Prevents Bd3.} 29. Ne3 f4 30. Nc4 Qe7 31. Qg5 ({Avoid the trap} 31. Qxa6 $2 Bd5 32. b3 Bxc4 33. Qxc4 Qe3+ 34. Kb2 Qxg1 $19) 31... Qxg5 32. Rxg5 {An interesting draw.  Weighted Error Value: White=0.00 (flawless) /Black=0.01 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.2"]
[White "Ratnakaran, K.."]
[Black "Fawzy, Adham"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2316"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,71,18,15,18,18,19,12,20,12,22,18,17,4,18,-17,-20,-28,0,0,0,-40,-37,-16,109,0,0,0,0,0,39,-21,-23,-160,-162,-228,-227,-197,-220,-211,-208,-208,-200,-197,-197,-197,-180,-162,0,0,627,633,616,609,596,490,3464,3404,5273,3182,29983,29981]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. h3 Ne7 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 8. d3 O-O 9. Be3 b6 $1 {The position is equal.} 10. a4 {[%cal Oa4a5]} a5 11. Nbd2 Qc7 {[#]} 12. Qb1 $146 ({Predecessor:} 12. Qe2 h6 13. Nb3 Be6 14. Nfd2 Kh7 15. Rf1 f5 16. f3 Rad8 17. Rad1 Rd7 18. Bf2 {0-1 (36) Ambarcumova,K (2171)-Khudaya,A (1987) Urgup 2004}) 12... h6 13. Ra3 Be6 14. c3 f5 15. exf5 Bxf5 16. g4 Be6 17. d4 $1 exd4 {[#]} (17... cxd4 $11 {remains equal.} 18. Bxd4 exd4 19. Rxe6 dxc3 20. Rxc3 Bxc3 21. bxc3 Qd7) 18. cxd4 ({White has to play} 18. Bxh6 $1 $16 {[%mdl 512]} Bxh6 19. Rxe6) 18... Bd5 $14 19. dxc5 Bxf3 {A strong pair of Bishops.} 20. cxb6 Qd7 {[%cal Of3g4]} 21. b7 (21. Bc5 Qxd2 22. Rd3 (22. Rxe7 Bd5 $17) 22... Qf4 $17) ({White should play} 21. Rd3 $14 Bd5 22. Bc5) 21... Rab8 $11 {[%cal Of3g4] Strongly threatening ...Bxg4!} 22. Bc5 Qxd2 $17 23. Rxe7 (23. Rd3 $142 Qf4 24. Bd6) 23... Bd5 $1 $19 {Threatens to win with ...Rf7.} 24. Rd3 (24. Qxg6 $2 Qd1+ 25. Kh2 Qh1+ 26. Kg3 Rf3+ 27. Rxf3 Qxf3+ 28. Kh4 Qf6+ 29. Kh5 Bf7 30. Qxf7+ Qxf7+ 31. Rxf7 Kxf7 $19) 24... Qf4 (24... Qxb2 25. Qxb2 Bxb2 26. Bd6 $11) 25. b4 (25. Rxd5 cxd5 26. Qxg6 Qf6 27. Rxg7+ (27. Qd3 $2 Qc6 $19) 27... Qxg7) 25... Rf7 {aiming for ...Rxe7.} 26. Rxd5 cxd5 27. bxa5 Rxe7 (27... Qxa4 28. Rxf7 Kxf7 29. Bd6 $11) 28. Bxe7 Bd4 ({Not} 28... Qxa4 29. Bd6 Rxb7 30. Qxb7 Qxa5 31. Kh2 $11) (28... Qc7 29. a6 $1 Kh7 30. Qb4 $16) 29. Bh4 g5 (29... Kg7 $19 30. Kg2 Rf8) 30. Qg6+ $11 Bg7 $2 {[%mdl 8192] [#]} (30... Kf8 $11 31. Qxh6+ Kf7) 31. a6 $1 $18 gxh4 32. a7 Rf8 {[#]} 33. Qe6+ $1 ({But not} 33. a8=Q $2 Qxf2+ 34. Kh1 Qf3+ 35. Kh2 Qf2+ 36. Kh1 Qf3+ 37. Kh2 Qf2+ 38. Kh1 $19) 33... Kh8 {[#]} (33... Kh7 $142 34. Qe3 Bd4 35. Qxf4 Rxf4) 34. Qe3 $1 (34. a8=Q {gets mated.} Qxf2+ 35. Kh1 Qf3+ 36. Kh2 Qg3+ 37. Kh1 Qxh3+ 38. Kg1 Bd4+) 34... Qb4 35. a8=Q {White wants to mate with a5.} d4 36. Qf4 {Weighted Error Value: White=0.20 (precise) /Black=0.64} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.3"]
[White "Sai Agni Jeevitesh, J."]
[Black "Das, Sayantan"]
[Result "0-1"]
[ECO "E71"]
[WhiteElo "2316"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,124,43,43,43,43,38,33,32,42,37,34,40,40,31,20,14,17,47,15,37,16,16,0,72,18,40,37,36,0,0,0,0,0,0,0,0,-53,-51,-59,-41,-39,-65,-60,-42,-52,-9,-10,-11,-137,0,-136,-140,-145,-131,-173,-177,-225,-225,-225,-225,-204,-221,-279,-274,-279,-279,-12837,-332,-326,-229,-229,-229,-290,-229,-12824,-12823,-12823,-12822,-229,-229,-12824,-12827,-12827,-12829,-12829,-12830,-12831,-12831,-12832,-12832,-12834,-12831,-12831,-12830,-12830,-12831,-12831,-12831,-12832,-12830,-12834,-12831,-12830,-12822,-12831,-12831,-12833,-12829,-12846,-12847,-12849,-12846]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 c6 7. Nf3 a6 8. c5 b5 {E90: King's Indian: Classical: Early deviations and 6 h3.} 9. cxb6 Qxb6 10. Qd2 a5 {White is slightly better.} 11. Be2 Ba6 12. O-O {[#]} Rd8 $146 ({Predecessor:} 12... Bxe2 13. Qxe2 Na6 14. Rac1 Rfb8 15. b3 Qb7 16. Rfd1 Nc7 17. Qd3 Nb5 18. Na4 Na3 {1-0 (49) Batsiashvili,N (2504)-Tsereteli,T (2332) Tbilisi 2018}) 13. Rfd1 Qb7 14. Qc2 Bxe2 15. Qxe2 Na6 {[%cal Oa5a4,Bb8a6,Ba6c7,Bc7e6][%mdl 32]} 16. Rac1 Nc7 17. Bg5 Ne6 18. Be3 Qb4 (18... Nc7 $11) 19. Rc2 (19. d5 $16 cxd5 20. exd5 (20. Nxd5 Nxd5 21. exd5 Nf4 $14)) 19... d5 20. Ne5 Qb7 21. exd5 (21. Qf3 {is more complex.} Rac8 22. b3 Rc7 23. h4 Rf8 24. Rdc1) 21... Nxd5 22. Nxd5 cxd5 23. Nc6 Rd6 24. Rdc1 Ra6 {[%cal Ba8a6,Ba6b6,Bb6b2][%mdl 32]} 25. Nb8 Rab6 $15 26. Qd2 $1 h5 $36 {[%mdl 2048] Threatens to win with ...Kh7. Black has good play.} 27. Qxa5 Kh7 28. Rc8 Rxb2 29. Qa4 {aiming for Qe8.} Rd8 {Inhibits Qe8.} (29... Rb5 $15 {might be stronger.}) 30. Rxd8 $11 Nxd8 31. Na6 (31. Nd7 $11 {keeps the balance.}) 31... Qa8 (31... Rb1 $1 $17 {[%cal Rb1c1] Hoping for ...Rxc1+.} 32. Rxb1 (32. Nc5 $2 Rxc1+ 33. Bxc1 Qb1 $17) 32... Qxb1+ 33. Kh2 Ne6) 32. Qd7 {[#]} Ne6 $1 $17 {Black keeps a firm grip on the game.} 33. Nc7 {[#]} Qb7 {And now ...Rb1 would win.} 34. Qxe7 (34. Kh2 $17 {might work better.} Rb4 35. g3 (35. Qxe7 $2 Rc4 $19)) 34... Rb1 $19 35. Nxd5 (35. Rxb1 {was worth a try.} Qxb1+ 36. Kh2) 35... Rxc1+ 36. Bxc1 Qxd5 37. Qxf7 Qxa2 {[%cal Oa2a1]} 38. Be3 Qa1+ 39. Kh2 Nxd4 40. g4 $2 (40. Bxd4 Qxd4 41. g3) 40... hxg4 $2 (40... Ne2 {[%csl Ge2][%cal Ra1g1]} 41. Kg2 hxg4 42. hxg4 Qg1+ 43. Kf3 Nc3 44. Qxg7+ Kxg7 45. Bd4+ Kh6 46. Bxc3 Kg5 47. Bd2+ Kh4) 41. hxg4 Qd1 42. Bxd4 Qxd4 43. Kg3 Qc3+ 44. f3 $2 (44. Kg2) 44... Qe1+ 45. Kg2 Qe2+ 46. Kg3 Qe3 47. Kg2 $2 (47. Kh2) 47... g5 {Black is clearly winning.} 48. Qh5+ Kg8 49. Qg6 Qe5 50. Kh3 Kf8 51. Qc6 Bf6 52. Qd7 Qe2 53. Qf5 Ke7 54. Qc5+ Kf7 55. Qf5 Kg7 56. Qd7+ Kh6 {( -> ...Qf1+)} 57. Qf5 Be7 58. Qd5 Kg7 59. Qc6 Qe5 60. Qb7 Kh6 61. f4 gxf4 62. Qb6+ Kg7 {Weighted Error Value: White=0.69/Black=0.25 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.4"]
[White "Ponkratov, Pavel"]
[Black "Abdisalimov, Abdimalik"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2641"]
[BlackElo "2435"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,16,16,14,10,7,21,14,33,35,47,41,87,68,64,59,78,79,102,97,92,66,67,50,62,37,85,62,72,62,65,69,72,65,76,73,79,50,115,106,141,74,91,77,58,62,91,79,192,168,173,33,85,87,81,52,72,43,44,53,50,44,39,43,73,14,5,6,10,10,12,24,47,49,55,51,162,150,158,158,162,141,136,145,146,136,195,163,155,164,194,188,428,430,563,551,526,414,366,189,182,185,190,187,631,563,12836,12836,12850,12850,27999,27999]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. e3 {E11: Bogo-Indian.} Bb7 7. Bd3 O-O 8. Nc3 {The position is equal.} d6 9. e4 {[#]} c5 $146 ({Predecessor:} 9... e5 10. O-O Nbd7 11. Rfe1 Re8 12. Bc2 exd4 13. Nxd4 Nc5 14. f3 a5 15. Rad1 Ne6 {1-0 (48) Sarana,A (2689)-Kovalev,V (2573) Riga 2021}) 10. d5 e5 (10... exd5 $14 11. cxd5 (11. Nxd5 Bxd5 12. exd5 Re8+ 13. Kf1 Qd7 $11) 11... Nbd7) 11. g3 Bc8 12. Nh4 {[%cal Bf3h4,Bh4f5,Bf5e3][%mdl 32]} g6 13. f3 Nh5 14. Qh6 Na6 15. Kd2 Nc7 16. a4 {[%cal Oh4f5]} Bd7 17. Nf5 {aiming for g4.} Ne8 (17... Qf6 $14) 18. Ne3 {White is much more active.} a6 19. Be2 Qf6 20. Rhf1 Rb8 21. Kc2 Qg7 22. Qxg7+ Nhxg7 23. a5 b5 ({Black should try} 23... f5 $14) 24. cxb5 $16 axb5 25. f4 (25. Rfb1 $142) 25... exf4 26. gxf4 Nc7 27. Rfd1 Ra8 28. e5 $1 Nf5 (28... Rfb8 $16) 29. Nxf5 $18 Bxf5+ 30. Bd3 (30. Kd2 $1 $18) 30... Rfd8 $1 $14 31. Bxf5 gxf5 32. Ne2 {And now Ng3 would win.} Ra6 33. Ng3 (33. b4 $5) 33... dxe5 34. Nxf5 exf4 35. d6 ({Of course not} 35. Rg1+ Kf8 36. d6 Ne8 $11) 35... Ne6 36. b4 Kf8 37. Rd5 (37. Kb3 $16) 37... cxb4 $11 38. Kb3 f3 39. Kxb4 f2 {[%cal Oa6a5] Threatens to win with ...Rxa5!} 40. Rf1 (40. Kxb5 Rxa5+ $3 {[%mdl 512]} 41. Kxa5 Ra8+ 42. Kb4 Rxa1 $17) 40... Rda8 41. Rxb5 Nf4 42. Ka4 $1 Nd3 {[#]} (42... Nh3 $1 $14) 43. d7 $1 $18 R6a7 44. Rd5 {Dancing on a razor blade.} Rxd7 45. Rxd7 Nc5+ 46. Kb5 Nxd7 47. Rxf2 $16 {[%mdl 4096] Endgame KRN-KRN} Ke8 (47... Ne5 $16 {keeps fighting.}) 48. Nd6+ Ke7 49. Nb7 ({Resist} 49. Nxf7 $6 Rb8+ 50. Kc6 Rc8+ 51. Kb7 Rf8 $14) 49... Ra7 50. Re2+ Kf8 $2 (50... Kf6) 51. Nd6 $18 Nf6 52. Kb6 Rd7 53. Kc6 {a6 is the strong threat.} Ra7 54. Nc4 (54. Kb5 $142) 54... Nd7 55. Rd2 Ke7 56. Kb5 {Black must now prevent Nb6.} Rc7 $2 (56... Rb7+ 57. Nb6 Nb8) 57. Nb6 Nxb6 58. axb6 ({Weaker is} 58. Kxb6 Rc1 59. Rb2 Kd7 $16) 58... Rd7 59. Rxd7+ Kxd7 {[#]} 60. Ka6 $1 {Weighted Error Value: White=0.18 (very precise) /Black=0.35} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.5"]
[White "Shyaamnikhil P"]
[Black "Visakh N R"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2442"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,60,21,20,22,18,22,0,0,0,0,-27,-22,-20,0,0,4,4,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16]} 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 Nc6 5. Nc3 {[%cal Bb1c3,Bc3d5,Bd5e3,Be3f1][%mdl 32]} h6 6. Nd5 d6 7. c3 a6 8. Be3 Ba7 9. Bxa7 Rxa7 10. Ne3 O-O 11. Bb3 Be6 12. O-O Re8 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 13. Re1 Ra8 {[#]} 14. Nf1 $146 ({Predecessor:} 14. h3 Qd7 15. Nh2 d5 16. Nhg4 Nxg4 17. exd5 Nxe3 18. dxe6 Nxd1 19. exd7 Re7 20. Bxd1 Rxd7 21. Bf3 {½-½ (30) Spasov,V (2539)-Feller,S (2622) Bol 2015}) 14... d5 15. exd5 Bxd5 16. Ng3 Bxb3 17. axb3 {The position is equal.} (17. Qxb3 {looks sharper.} Qxd3 18. Qxb7 Qb5 19. Qxb5 axb5 20. Red1) 17... Qd7 18. Ne4 Nxe4 19. dxe4 Qe6 20. Qd5 Rad8 21. Qxe6 Rxe6 22. Kf1 a5 23. Red1 Red6 24. Rxd6 Rxd6 $11 {[%mdl 4096] Endgame KRN-KRN} 25. Ke2 f6 26. Nd2 b6 27. Nc4 Rd7 28. Ne3 Kf7 29. Ra4 Ke6 30. f3 Ne7 {An uneventful encounter.  Weighted Error Value: White=0.04 (flawless) /Black=0.02 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.6"]
[White "Gusain, Himal"]
[Black "Deepan Chakkravarthy J."]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2408"]
[BlackElo "2520"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,88,-14,4,0,-1,0,-3,-5,-14,2,0,-36,-25,-42,-29,-33,-11,0,0,-35,-20,-43,-58,-58,-45,-46,-36,-34,-41,-69,-65,-68,-69,-65,-42,-43,-45,-58,-42,-44,-37,-37,-37,-86,-37,-52,-38,-38,-38,-40,-42,-40,5,8,6,-6,0,-6,0,0,0,-14,-7,-6,-8,-14,-6,-6,-7,-6,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 g6 5. Bc4 Bg7 6. O-O e6 7. d4 {The modern move. B23: Closed Sicilian: Lines without g3.} cxd4 8. Nb5 {[%cal Oe4e5]} Nge7 9. Bb3 O-O 10. Nbxd4 Na5 11. c3 Nxb3 12. axb3 e5 {[#]} 13. Nc2 $146 ({Predecessor:} 13. Ne2 Bg4 14. h3 Qb6+ 15. Kh1 Bxf3 16. Rxf3 Qc6 17. f5 d5 18. exd5 Nxd5 19. Ng3 {½-½ (78) Abdumalik,Z (2471)-Vignesh,N (2436) Moscow 2020}) 13... d5 14. exd5 e4 15. Ng5 Qxd5 16. Qxd5 (16. Qe2 {seems wilder.} Re8 17. Ra4 Bf5 18. Ne3 Qd3 19. Qxd3 exd3 20. Rd1) 16... Nxd5 17. Ne3 Nxe3 18. Bxe3 h6 19. Nh3 ({Don't blunder} 19. Nxe4 $2 Re8 20. Rxa7 (20. Ra4 $2 Bd7 $19) 20... Rxa7 21. Bxa7 Rxe4 $19) 19... a6 20. Nf2 f5 21. Rfd1 Be6 22. b4 Rfd8 (22... Bf6 {with more complications.} 23. Bb6 Rac8 24. g3 Rc6 25. Be3 Bb3) 23. Bb6 Rxd1+ (23... Rdc8 {keeps more tension.} 24. Nh1 Rc6 25. Be3 Kf7 26. Ng3 Bf6) 24. Rxd1 Kf7 25. Kf1 g5 26. Nh3 Bf6 27. Be3 (27. Kf2 $15) 27... Rg8 (27... g4 $17 28. Ng1 a5) 28. g3 Bc4+ 29. Ke1 Ke6 {Inhibits Rd7.} 30. Bc5 Bd3 31. Nf2 gxf4 (31... Bb5 $15 {is superior.} 32. Nh3 Kf7) 32. Nxd3 $11 {The position is equal.} exd3 33. Rxd3 $15 {[%mdl 4096] Endgame KRB-KRB} Be5 {[%cal Rf4g3] Prevents Rd6+.} 34. Bf2 h5 35. Ke2 fxg3 36. hxg3 f4 37. gxf4 Bxf4 38. Kf3 Bg5 39. Rd1 Rf8+ 40. Kg2 Rd8 41. Rh1 Rh8 42. Bd4 Rh7 43. Re1+ Kd7 44. b5 axb5 {Weighted Error Value: White=0.06 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.7"]
[White "Stany, G.A."]
[Black "Gholami Orimi, Mahdi"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2517"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,65,4,0,0,17,37,34,37,56,58,56,49,74,74,68,57,81,62,150,145,150,150,152,162,172,149,154,160,159,144,147,107,110,117,116,120,110,114,177,167,190,174,403,394,5473,5433,29996,29997]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. d4 Nxd4 9. Nxd4 exd4 10. e5 Ne8 11. c3 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} d6 {Recently 11...c5 got a lot of attention.} 12. Qf3 {Strongly threatening exd6.} Be6 13. cxd4 {White is slightly better.} dxe5 14. dxe5 c5 15. Nc3 {[%cal Bb1c3,Bc3e4,Be4g5,Bg5e6,Be6c5][%mdl 32]} Nc7 {[#]} 16. Be3 $146 ({Predecessor:} 16. Bc2 b4 17. Ne4 Nb5 18. Qh5 g6 19. Qh6 Nd4 20. Ng5 Bxg5 21. Bxg5 Qxg5 22. Qxg5 Nxc2 {½-½ (50) Filev,G (2323)-Stojanov,A (2129) Teteven 2014}) 16... Qc8 17. Bc2 $36 {[%mdl 2048] White is pushing.} Rd8 18. Ne4 $1 Bg4 (18... Ne8 $14) 19. Qg3 $1 $16 Nd5 {Inhibits Nf6+.} 20. Bg5 Bxg5 21. Nxg5 {[%mdl 64] Discovered Attack} Bf5 22. Bxf5 Qxf5 23. e6 fxe6 (23... f6 $2 24. Nf7 Kf8 25. Nxd8 Rxd8 26. Rad1 $18) 24. Nxe6 {[%csl Ge6][%cal Rg3g7]} Rd7 25. Nxc5 {And now Re5 would win.} Re7 {Inhibits Re5.} 26. Rxe7 Nxe7 27. Qd6 {[%csl LRa6,LRe7]} Ng6 28. Re1 {[%cal Ba1e1,Be1e5,Be5e7][%mdl 32]} Nf4 (28... Rc8 $16) 29. g3 $1 $18 ({Much worse is} 29. Nxa6 $6 Rf8 30. Qd1 Nxg2 31. Kxg2 Qg6+ 32. Kf1 Qxa6 $14) ({Stronger than} 29. Qc6 Rc8 30. Qd6 (30. Re8+ $2 Kf7 $19) 30... Ne2+ 31. Kf1 Rxc5 $11) 29... Nh3+ 30. Kg2 {Hoping for Re5. Active counter play!} Nxf2 $2 {[#]} (30... Qxf2+ $2 31. Kxh3 Qf5+ 32. Kg2 $18) (30... Ng5 {was necessary.}) 31. Re5 $1 (31. Qe6+ Qxe6 32. Rxe6 Nd1 $14) 31... Qf7 {[#]} (31... Qh3+ 32. Kg1 (32. Kxf2 Rf8+ 33. Ke3 Qxh2 $18) 32... Rf8) 32. Re7 $1 Qc4 33. Qe5 {Weighted Error Value: White=0.01 (flawless) /Black=0.53} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.8"]
[White "Manish Anto Cristiano F"]
[Black "Iniyan, P."]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2236"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,42,10,17,12,7,16,7,2,0,0,0,0,-24,72,-42,-39,-42,-45,-60,-49,-64,-68,-547,-536,-905,-904,-888,-892,-1093,-1047,-5260,-5226]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qb6 {B94: Sicilian Najdorf: 6 Bg5 Nbd7.} 8. Bb3 e6 $1 9. O-O Be7 {The position is equal.} 10. Kh1 {10.a4 is not played anymore.} Nc5 11. f4 h6 12. Bh4 {[#] Black must now prevent e5.} g5 $146 (12... Ncxe4 $11 13. Nxe4 Nxe4 14. Bxe7 Kxe7) ({Predecessor:} 12... Qc7 13. Qe2 O-O 14. e5 Ne8 15. Bxe7 Qxe7 16. Ne4 Nxb3 17. axb3 b6 18. Nb5 dxe5 19. fxe5 {½-½ (35) Manish,A (2349)-Shahil,D (2434) Budapest 2021}) 13. fxg5 (13. Be1 $16) 13... hxg5 $15 14. Bxg5 Ncxe4 15. Nxe4 Nxe4 {Dancing on a razor blade.} 16. Bxe7 ({Much worse is} 16. Ba4+ Bd7 17. Bxd7+ Kxd7 $17) 16... Kxe7 ({But not} 16... Ng3+ 17. Kg1 Nxf1 18. Bf6 $11) 17. Qd3 {[%mdl 8192] [#] This costs White the game.} (17. Rf4 $15 d5 18. Qd3) 17... Qxd4 $3 $19 {[%mdl 512] Black is clearly winning.} 18. Qf3 (18. Qxd4 Ng3+) 18... f5 {Threatens to win with ...Bd7.} 19. Rae1 Bd7 {[%cal Oh8h2] ( -> ...Rxh2+!)} 20. Re3 Nd2 21. Qxf5 {[#]} Rxh2+ $3 {[%mdl 512] Weighted Error Value: White=1.42/Black=0.12 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.9"]
[White "Mosadeghpour, Masoud"]
[Black "Karthikeyan, P.."]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "2511"]
[BlackElo "2396"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,56,11,8,0,0,5,9,-6,-14,-2,-5,-4,-9,-1,-6,-5,-11,-11,-12,-21,-10,-3,-9,-7,-4,-19,-13,-32,0,0,-4,-34,-30,-30,-28,-36,-29,-29,-33,-33,-33,-30,-29,-30,-14]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 e6 6. cxd4 d6 7. Bc4 Be7 8. O-O {B22: Sicilian: 2 c3.} O-O 9. Qe2 b6 10. Nc3 {The position is equal.} Nxc3 11. bxc3 Bb7 {To avoid d5} 12. Rd1 {[%cal Bf1d1,Bd1d5,Bd5d7][%mdl 32]} Qc7 13. Bf4 Nd7 {[#]} 14. d5 $146 ({Predecessor:} 14. Bd3 Bxf3 15. Qxf3 dxe5 16. dxe5 Nc5 17. Bc2 Rad8 18. h4 Rxd1+ 19. Rxd1 Rd8 20. h5 Rxd1+ 21. Qxd1 {0-1 (30) Paichadze,L (2565)-Matlakov,M (2688) Chess.com INT 2021}) 14... Bxd5 15. Bxd5 exd5 16. Rxd5 {[%cal Re5d6]} Nxe5 17. Nxe5 dxe5 18. Bxe5 ({Don't play} 18. Qxe5 Qc6 $15) 18... Qc6 19. Rad1 {[%cal Oe5g7]} Rfe8 20. Qf3 {[%cal Oe5g7]} Qc4 21. Rd7 $40 {[%cal Od7e7][%mdl 128] [#] Threatens to win with Rxe7! White mounts an attack.} Bf8 {aiming for ...Qe6.} 22. Qd5 ({Don't blunder} 22. R1d5 $2 f6 23. g3 fxe5 $19) (22. h3 {keeps more tension.} Qxa2 23. c4 Qxc4 24. R1d5 f6 25. Bxf6 Qe4 26. Qxe4 Rxe4 27. Bxg7 Re1+ 28. Kh2) 22... Qxd5 23. R7xd5 (23. R1xd5 $2 {too greedy.} f6 24. f4 fxe5 $19) 23... f6 24. Bf4 Re2 25. R5d2 Rxd2 26. Rxd2 Rc8 27. Rd7 Rxc3 28. Rxa7 Bc5 {Weighted Error Value: White=0.05 (flawless) /Black=0.02 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.10"]
[White "Mirzoev, Azer"]
[Black "Aaryan Varshney"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2468"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,123,13,12,37,24,26,0,21,-2,31,22,62,55,54,53,64,65,61,69,65,59,101,54,44,55,63,44,70,60,68,80,95,72,114,69,81,80,117,126,125,127,131,135,166,166,165,165,175,158,196,200,201,200,193,170,195,189,312,300,310,307,305,226,253,210,210,223,284,273,291,307,320,318,410,412,439,431,416,380,441,385,517,475,484,464,566,570,525,543,648,650,638,620,548,609,610,619,654,658,766,739,671,599,4702,4133,29980,29981,29988,29989,29993,29994,29996,29997]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. a3 Bxc3+ 7. bxc3 h6 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. e3 O-O {[#]} 9. Be2 $146 ({Predecessor:} 9. cxd5 exd5 10. Bd3 Bg4 11. Nd2 Ne7 12. Qb5 b6 13. a4 Bf5 14. Ba3 c6 15. Qb1 Bxd3 16. Qxd3 {½-½ (43) Kortschnoj,V (2671)-Landenbergue,C (2434) Switzerland 2003}) 9... Re8 {The position is equal.} 10. O-O e5 11. cxd5 Nxd5 12. Qc2 exd4 13. cxd4 Bg4 14. Rb1 Rb8 15. h3 Bh5 16. Rb5 Bg6 (16... Qd7 $14) 17. Bd3 ({White should try} 17. Qb3 $16 Nb6 18. Bb2) 17... Bxd3 $14 18. Qxd3 a6 19. Rb2 Nf6 {Inhibits e4.} 20. Bd2 Qd5 21. Rc1 Ne4 22. Be1 (22. Qb1 {is interesting.} Nd6 23. a4 Qe4 24. Rbc2 Qe6 25. Ne1) 22... Re7 ({Better is} 22... Rbc8) 23. Qb3 (23. Qb1 $16) 23... Qxb3 24. Rxb3 {[%cal Oc1c6]} Nd8 {[%cal Oc7c5]} 25. Bb4 c5 26. dxc5 ({Resist} 26. Bxc5 Rc7 $14) 26... Nc6 27. Nd4 $36 {[%mdl 2048] White is in control.} Rc7 28. f3 Nf6 29. Be1 {[%cal Bb4e1,Be1g3,Bg3e5][%mdl 32] [#] aiming for Bg3.} Rbc8 30. Bg3 {Prevents Ne5.} Nxd4 31. exd4 Rd7 32. Be5 Ne8 33. Re1 Kf8 34. Rb4 Rc6 (34... a5 {keeps fighting.} 35. Ra4 Rcd8) 35. Reb1 $18 f6 36. Bg3 ({Inferior is} 36. Rxb7 Rxb7 37. Rxb7 fxe5 $17) 36... Re6 37. Kf1 Ree7 38. Re1 Rxe1+ 39. Kxe1 {[%mdl 4096] Endgame KRB-KRN} Ke7 40. Kd2 Ke6 41. Kd3 Kd5 42. a4 g6 43. Rb6 Rf7 44. a5 Rd7 45. Bh2 h5 46. h4 Re7 47. Bf4 Rd7 48. g4 hxg4 49. fxg4 Rh7 50. Bg3 Re7 51. g5 Rf7 52. Bf4 fxg5 53. Bxg5 Rf3+ 54. Be3 Rh3 55. Rxb7 {[#] Strongly threatening Re7.} Nf6 56. Rb6 $1 {[%csl Gc5,LRa6,LRf6][%cal Rb6d6]} Ne4 {Inhibits Rd6+.} 57. Rxa6 Rxh4 58. Ra8 Ng3 59. a6 {White mates.} Nf5 60. a7 Rh7 61. Rd8+ Kc6 62. a8=Q+ {Weighted Error Value: White=0.09 (flawless) /Black=0.34} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.11"]
[White "Krishna C R G"]
[Black "Kaustuv, Kundu"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2466"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,60,5,8,18,7,10,16,0,-6,-37,-30,-35,-25,-68,-73,-87,-78,-91,-60,-47,-40,-40,-10,-11,-9,-34,-25,-24,-22,-47,-15,-53,0,-56,-52,-54,-67,-77,0,0,0,0,0,0,0]} 1. d4 {Sadorra,Julio} Nf6 2. Nf3 d5 3. c4 e6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qb3 b6 9. Nc3 Ba6 10. cxd5 {E11: Bogo-Indian.} cxd5 11. Ne5 Bb7 $1 {[#]} 12. a4 $146 {[%cal Ba2a4,Ba4a5][%mdl 32]} ({Predecessor:} 12. Rfc1 Nc6 13. Nxd5 Nxd4 14. Nxe7+ Qxe7 15. Qc4 Bxg2 16. Qxd4 Rfd8 17. Qf4 Bb7 18. Bb4 {½-½ (67) Caruana,F (2784)-Ding,L (2769) Berlin 2018 CBM 184 [Sadorra,Julio]}) 12... Nc6 13. a5 Nxe5 14. dxe5 Nd7 15. Be3 (15. axb6 $11 {feels stronger.} Qxb6 16. Qxb6 axb6 17. f4) 15... Nxe5 $15 16. axb6 axb6 17. Bxb6 Qd7 18. Rfd1 Rxa1 19. Rxa1 Ra8 20. Rxa8+ Bxa8 21. Qa2 Bb7 22. Bd4 Nc6 23. Qa4 h6 (23... Bc8 $5 {[%cal Rc6d4]}) 24. h3 e5 (24... Bc8 $15) 25. Nxd5 ({White should play} 25. Be3 $11) 25... exd4 26. Nxe7+ Qxe7 27. Bxc6 {[#]} Bxc6 (27... d3 $1 $17 {[%cal Rd3e2]} 28. e3 (28. exd3 $2 Qe1+ 29. Kg2 Qe8 $19) 28... Bxc6 29. Qxc6 Qd8) 28. Qxc6 $11 {Qc8+ is the strong threat. The position is equal.} Qxe2 {KQ-KQ} 29. Qc8+ Kh7 30. Qf5+ Kg8 {Weighted Error Value: White=0.18 (very precise) /Black=0.15 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.12"]
[White "Karthik Venkataraman"]
[Black "Imtiaz, Islam Bora"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2485"]
[BlackElo "2004"]
[Annotator "TA"]
[PlyCount "157"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,157,3,0,-9,-25,-20,0,0,23,16,21,0,0,0,0,0,0,0,0,0,0,0,20,43,36,12,18,0,0,3,6,7,6,2,3,8,27,24,21,20,116,116,122,124,139,134,160,155,150,145,136,124,122,92,122,112,124,124,124,124,124,42,19,29,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,117,117,117,117,117,8,8,8,8,8,8,8,8,8,8,8,8,8,20,15,20,8,12,12,12,12,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,5389,2629,1294,538,29969,29971,29971,29972,29971,29972,29970,117,29972,29973,29973,29974,29982,29983,29983,29984,29984,29985,29985,29986]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 {B23: Closed Sicilian: Lines without g3.} Nc6 7. d3 e6 8. f5 $1 {[%mdl 4] The position is equal. is more profitable than 8.0-0 at the moment.} gxf5 9. exf5 d5 10. Bb5 (10. fxe6 $5 fxe6 11. Bg5 $15) 10... Nge7 {[#]} 11. Bxc6 $146 ({Predecessor:} 11. Bg5 Bxc3+ 12. bxc3 Qa5 13. Bxc6 Nxc6 14. O-O Rg8 15. Qd2 exf5 16. Qf4 Be6 17. Rab1 {1-0 (39) Shevchenko,K (2655)-Muradli,M (2503) Warsaw 2021}) 11... Bxc6 12. fxe6 fxe6 13. Qe2 O-O 14. Qxe6+ Kh8 15. Bg5 {Black must now prevent 0-0.} d4 16. Ne4 (16. Qxe7 $2 Re8 17. Qe2 Rxe2+ 18. Nxe2 Qe8 $19) 16... Qd5 $1 17. Qg4 Qf5 18. h3 Qxg4 19. hxg4 Bxe4 {This bishop pair is nice.} 20. Bxe7 Rfe8 {...Bc6 is the strong threat.} 21. dxe4 Rxe7 22. O-O-O Kg8 23. Rde1 Rae8 24. Rh5 b6 (24... Rxe4 $11 {remains equal.} 25. Rxe4 Rxe4) 25. e5 $16 Re6 26. Re4 R6e7 27. a4 Re6 28. Kd2 a6 29. Kd3 b5 30. axb5 axb5 31. b4 cxb4 32. Nxd4 ({Resist} 32. Rxd4 Bxe5 33. Re4 (33. Rxe5 Rxe5 34. Nxe5 Rxe5 $14) (33. Rxb4 Bg7 $11) 33... Bc3 34. Rxe6 Rxe6 $14) 32... Rxe5 33. Rhxe5 Rxe5 34. Rxe5 Bxe5 35. Nxb5 {[%mdl 4096] Endgame KB-KN} ({White should try} 35. Ke4 $1 $16 {[%cal Re4e5]} Bd6 36. Nxb5) 35... Kg7 36. Ke4 Bf6 (36... Kf6 $11 {keeps the balance.}) 37. Nc7 {Strongly threatening Nd5.} Be7 38. Kf5 Bh4 39. Nd5 Be1 40. Nf6 Bc3 41. Ne4 Bd4 42. Ng3 Bc5 43. Nh5+ Kf7 44. Nf4 Be3 45. Nd5 Bd2 46. Nb6 Kg7 47. Ke4 (47. Nd7 $16) 47... Kg6 $11 48. Nd5 Kg5 49. Kf3 Be1 50. Nf4 Bc3 51. Nd3 Kg6 52. Nf2 Bg7 53. Ne4 Bf8 54. Kf4 Bg7 55. Ng3 Bf8 56. Nf5 Bc5 57. g5 Bf8 (57... Kf7 $1 $11) 58. Nh4+ $1 $16 {Black is on the road to losing.} Kg7 59. Kf5 Be7 60. Nf3 Bc5 61. Ne5 Bd4 62. Nd3 Bc3 63. Nc5 Kf7 64. Ne4 Bd4 65. Nf6 Kg7 66. Nd5 Bc5 67. Nf4 {Threatening mate with Ne6+.} Bd6 $2 {[%mdl 8192]} (67... Be3 $16 68. Ke4 Bd2) 68. Nh5+ $1 $18 Kh8 69. Nf6 {White wants to mate with g6.} Bg3 {[#]} 70. g6 $1 hxg6+ 71. Kxg6 Bf4 72. g4 Be3 73. Kf7 $2 (73. Nd5 {mates} Bf2 74. Nxb4 Kg8 75. g5 Bg1 76. Nd5 Bd4 77. c3 Bf2 78. c4) 73... Bf4 $2 {[%mdl 8192]} (73... Bd2 $16 74. Kg6 Bc1) 74. Nd5 {[%csl LRb4,LRf4] White mates.} Bd2 {[#]} 75. Nxb4 $1 {[%mdl 512]} Bxb4 {[#]} (75... Kh7 76. Nd5) 76. c4 $1 {[%cal Bc2c4,Bc4c5,Bc5c6][%mdl 32]} Bd2 77. c5 Kh7 78. c6 Bf4 79. g5 $1 {Weighted Error Value: White=0.07 (flawless) /Black=0.13 (very precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.13"]
[White "Borgaonkar Akshay"]
[Black "Raahul V S"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1985"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,109,18,21,16,16,16,16,8,17,30,-7,0,0,0,0,0,7,13,0,0,-66,0,-45,0,-66,0,-40,-37,-68,-53,-73,-54,-33,-43,-38,-95,-54,33,22,291,272,289,270,433,413,808,760,770,736,694,400,381,346,365,361,377,317,370,304,356,222,228,210,197,136,98,136,136,121,107,0,607,527,479,460,1225,1114,4685,3927,29963,29966,29964,29961,12294,10652,4698,2631,29980,29981,29981,29982,29983,29982,29978,29980]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. d4 exd4 5. Bg5 Be7 6. Bxe7 Qxe7 7. Bxc6 dxc6 8. Qxd4 Nf6 9. Nc3 Bg4 {C60: Ruy Lopez: Unusual Black 3rd moves and 3...g6.} 10. O-O-O {e5 is the strong threat.} Bxf3 11. gxf3 O-O {The position is equal.} 12. Qe3 Rfe8 13. Rhe1 {[#]} b6 $146 ({Predecessor:} 13... Nh5 14. e5 a5 15. f4 Qe6 16. Kb1 b6 17. Ne2 Rad8 18. Qf3 c5 19. Ng3 Qh3 20. Rxd8 Rxd8 {0-1 (30) Ruiz Sanchez,O (2429)-Hevia Alejano,C (2493) Bogota 2014}) 14. f4 Rad8 15. Rxd8 Rxd8 16. f5 Ng4 17. Qf4 Ne5 18. a3 (18. Qg3 $11) 18... b5 (18... Qd6 $1 $15 19. Kb1 Qd2 $1) 19. Rd1 (19. Qg3 $11 {should be considered.}) 19... Rd6 (19... Rxd1+ $15 20. Nxd1 Qd6) 20. Qg3 (20. Re1 $11) 20... Nc4 (20... Rxd1+ $15 21. Nxd1 Nc4) 21. Rxd6 cxd6 22. fxg6 hxg6 23. Qg4 Qf6 24. Qc8+ $1 Kg7 {Hoping for ...Qg5+.} 25. Qxc6 Qxf2 {White must now prevent ...Qe1+.} 26. Kb1 Qd4 (26... Qxh2 $15 27. Nxb5 Qe2) 27. Ka2 $14 a6 $2 {[%mdl 8192]} (27... Kf6 $11) 28. Qxa6 $18 b4 29. axb4 Nxb2 $2 (29... f5 30. Qb7+ Kh6 31. exf5 gxf5) 30. Kb3 (30. Kxb2 Qxb4+ 31. Kc1 Qxc3 $11) 30... Kh6 (30... Nd1 $142) 31. Qf1 ({Not} 31. Kxb2 Qxb4+ 32. Kc1 Qxc3 $11) 31... Kg7 32. b5 f6 33. Ne2 ({Weaker is} 33. Kxb2 Qb4+ 34. Ka2 Qxc3 $18) 33... Qe5 34. Nc1 Qd4 35. c3 Qd2 36. Qe2 Qxc1 37. Qxb2 {[%mdl 4096] Endgame KQ-KQ} Qe3 38. Qa3 Qd3 39. Qa7+ Kh6 40. Kb4 ({Better is} 40. Qa4 $18) 40... Qb1+ $16 41. Ka5 {Threatens to win with Qc7.} Qa1+ 42. Kb6 Qxc3 43. Kb7 (43. Qd7 $1 $16) 43... Qc4 $2 {[%mdl 8192]} (43... f5 $11) 44. Qe3+ $18 Kg7 45. b6 {[%cal Bb5b6,Bb6b7][%mdl 32]} Kf7 (45... g5 $142 46. Qa3 Qxe4+ 47. Kb8 Kh6) 46. Kb8 Ke7 47. b7 {Intending Qb6 and mate.} Qg8+ 48. Ka7 Qa2+ 49. Kb6 Qb2+ {[#]} 50. Kc7 $1 Qc2+ {[#]} 51. Kb8 $1 Kd8 52. Qb6+ {White mates.} Kd7 53. Qb5+ Kd8 54. Qa5+ Kd7 55. Ka7 {Weighted Error Value: White=0.32/Black=0.84} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.14"]
[White "Thapa, Krishna"]
[Black "Tahbaz, Arash"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1979"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,108,24,29,1,0,-8,0,-10,-1,-10,0,-27,-20,-66,-10,0,-15,-81,-25,-27,16,-122,-124,-189,-25,-32,-29,-35,-18,-54,-48,-50,-48,-90,-88,-114,-112,-119,-65,-236,-245,-254,-229,-300,-190,-178,-126,-184,-120,-122,-138,-131,-130,-116,-129,-135,-79,-129,-75,-95,-73,-81,-67,-83,-85,-83,-82,-67,-67,-1412,-34,-68,-30,-48,-43,-38,58,54,37,-540,-535,-706,-582,-639,-634,-642,-640,-671,-664,-811,-800,-845,-836,-797,-778,-1571,-1535,-1151,-640]} 1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Be3 Nd7 5. Qd2 a6 6. Nf3 b5 7. O-O-O {B06: Modern Defence.} Bb7 8. Bd3 Rc8 9. d5 {The position is equal.} c5 10. dxc6 $1 Bxc6 11. Kb1 {[#]} Ngf6 $146 ({Predecessor:} 11... Bb7 12. Nd4 Ngf6 13. Nb3 O-O 14. Bh6 Bxh6 15. Qxh6 Rxc3 16. bxc3 Nb6 17. h4 Na4 {0-1 (58) Allard,L (2007)-Leveille,F (2281) Montreal 2016}) 12. Bh6 (12. Nd4 $11) 12... O-O (12... Bxh6 $1 $15 13. Qxh6 Qb6) 13. Bxg7 $11 Kxg7 14. h3 (14. Nd4 $11 {keeps the balance.}) 14... h5 (14... Qb6 $17) 15. Nd4 {[%cal Og2g4]} Bb7 (15... Ba8 {is superior.}) 16. Qg5 (16. f3 $11 {remains equal.}) 16... e6 $1 $17 {[%cal Oc8c3]} 17. f3 {[#]} (17. f4 $17 Nc5 18. e5) 17... Qb6 $2 (17... Nd5 $1 $19 {[%mdl 512]} 18. Qc1 (18. Qxd8 Nxc3+) 18... Nxc3+ 19. bxc3 Nc5) 18. Nce2 {[%cal Od4e6]} Qc5 19. Qd2 Ne5 20. Nb3 Qc7 21. Ned4 d5 {[%cal Rd5e4]} 22. exd5 (22. Rde1 $15 {is more appropriate.}) 22... Bxd5 (22... Nxd5 $6 23. Be4 $11) 23. Rhe1 Nxd3 24. Qxd3 Qg3 (24... e5 $17 25. Ne2 e4) 25. Qd2 (25. Qe3 $15) 25... e5 $19 26. Ne2 Qxg2 27. Rg1 Qf2 (27... Qxf3 $2 28. Rdf1 Qxh3 29. Ng3 $19) 28. Rdf1 Qh4 (28... Qh2 $1 $19 29. Ng3 Qxd2 30. Nxd2 Rfd8) 29. Ng3 (29. f4 $17 {is a better defense.} Rfd8 30. Qe3) 29... Qf4 (29... Qxh3 30. Qg5 Qe6 31. Re1 Bxb3 32. axb3 $15) (29... Kh7 $1 $19 30. Ne4 Bxe4 31. fxe4 Nxe4) 30. Nxh5+ $17 Nxh5 31. Qxd5 Rfd8 32. Qb7 Qf5 {[%csl LRc2,LRh3]} 33. Rc1 {[#]} Rd6 (33... Qxh3 34. Qxa6 Qxf3 35. Qxb5 $15) (33... Nf4 $142 $1 {[%cal Rf4e2] Threatens to win with ...Ne2.} 34. Rge1 (34. Qxa6 $2 Ne2 $19) 34... Qf6) 34. Rge1 (34. h4 $142) 34... Rc4 (34... Rdc6 $142 {Hoping for ...R8c7.} 35. Qe7 Rxc2 36. Qxe5+ Qxe5 37. Rxe5 Rxc1+ 38. Nxc1 Nf4) 35. Qe7 Re6 {Black is more active.} 36. Qa7 Nf6 (36... Qxh3 37. Nc5 $11) (36... Qxf3 $2 37. Rf1 Qf4 38. Rxf4 $18) 37. Nc5 Rc6 38. Nd3 e4 ({But not} 38... Rxc2 39. Rxc2 Qxd3 40. Qf2 $11) 39. fxe4 Nxe4 {Strongly threatening ...Nd2+.} 40. Rh1 $2 {[%mdl 8192]} (40. Re2 $15) 40... Nf6 $2 ({Black should play} 40... Nd2+ $19 41. Ka1 {[#]} Qxd3 $3 {[%mdl 512]}) 41. Qb8 Nh5 ({Much less strong is} 41... Rxc2 42. Rxc2 Qxd3 43. Rhc1 $11) 42. Rhf1 Qc8 ({Resist} 42... Rc8 43. Qd6 Qe6 44. Qxe6 fxe6 45. Rfe1 $14) 43. Qe5+ f6 ({Better is} 43... Nf6 $15) 44. Qe7+ $14 Kh6 $1 45. Nb4 $2 {[%mdl 8192]} (45. Rg1 $14 {keeps the upper hand.} g5 46. Rce1) 45... Re6 $19 {Black is clearly winning.} 46. Qf7 Rxb4 47. Rg1 {[%csl Gf7][%cal Rg1g6]} f5 {And now ...Nf4 would win.} 48. Rcd1 Rbe4 49. a3 Qe8 50. Qc7 Re1 51. Ka2 Rxg1 52. Rxg1 Re1 53. Rg2 Qg8+ 54. b3 Qg7 {Weighted Error Value: White=0.77/Black=0.43} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.15"]
[White "Nitin, S.."]
[Black "Trailokya, Nanda"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "2427"]
[BlackElo "1973"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,43,38,20,20,18,32,34,20,21,31,22,32,-4,0,14,0,-25,25,29,255,251,217,243,335,331,498,406,688,686,762,515]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 {[%cal Bg8f6,Bf6d7,Bd7c5][%mdl 32]} 7. f4 d6 8. Qe2 Be7 {B82: Sicilian Scheveningen: 6 f4.} 9. g4 (9. O-O {feels hotter.} Nbd7 10. a4 Nc5 11. g4 d5 12. e5) 9... Nc6 10. Nxc6 bxc6 {White is slightly better.} 11. Bd2 Nd7 12. O-O-O {[#]} Nc5 $146 {To avoid Na4} ({Predecessor:} 12... Bb7 13. Na4 c5 14. c4 Bf6 15. Qe1 Bc6 16. Ba5 Qb7 17. Nc3 Bd4 {½-½ (17) Wagner,S (2139)-Guller,A (2080) Andorra 2009}) 13. f5 (13. Be3 $5 {[%cal Re3c5]}) 13... Bf6 14. Bc4 {Strongly threatening Bf4.} Rb8 15. Qf3 Qb6 (15... O-O $142 $1) 16. b3 $11 {And now Bf4 would win.} a5 $2 {Loses the game.} (16... O-O $1 $11 {and Black has nothing to worry.}) 17. Bf4 $18 e5 {[#]} 18. g5 $1 Be7 (18... Bd8 19. Be3) 19. Be3 Qc7 (19... Qb4 $142) 20. f6 Bf8 (20... Be6 $142 21. Bxe6 (21. fxg7 Rg8 $16) 21... Nxe6 22. fxe7 Qxe7) 21. Bxc5 dxc5 22. h4 {Weighted Error Value: White=0.10 (very precise) /Black=0.83} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.16"]
[White "Pradip, Ghosh"]
[Black "Saptarshi, Roy"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "1974"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,60,12,12,-50,-48,-56,-61,-80,-36,-71,-33,-35,-43,-20,-34,-44,-27,-41,-32,-74,-66,-104,-112,-109,-69,-79,-68,-69,-63,-59,-26,-34,0,-87,20,9,97,85,129,114,164,76,127,131,125,60,55,19,47,20,88]} 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Nc6 7. Ne2 {C26: Vienna Game: 2...Nf6, sidelines .} (7. Nf3 $11) 7... Be6 $15 8. O-O Bd5 9. f3 {[#] Black is slightly better.} h5 $146 ({Black should play} 9... Qd7 $17) ({Predecessor:} 9... Qf6 10. d3 Bc5+ 11. Kh1 O-O-O 12. Qe1 h5 13. h4 Qd6 14. c4 Be6 15. f4 Bg4 {0-1 (46) Schwenkreis,T (2048)-Kleibel,U (2217) Bayerisch Eisenstein 2019}) 10. Re1 Qf6 11. Nf4 $1 Bc4 12. d3 O-O-O 13. Nh3 (13. Bh3+ Kb8 14. Ng2 Bd5 $17) 13... Bc5+ 14. Kh1 $1 {Threatens to win with Bg5.} Qg6 15. Qe2 (15. f4 $1 $15) 15... Be6 $17 16. Ng5 h4 $1 17. Nxe6 fxe6 18. g4 h3 19. Bf1 Rdf8 20. Rb1 Qf7 21. f4 {[%cal Od3d4]} exf4 22. Qf3 (22. Qxe6+ $11 Qxe6 23. Rxe6) 22... Be3 (22... e5 $17 {Hoping for ...Bb6.} 23. d4 e4 $1 24. Rxe4 (24. Qxe4 $2 Re8 $19) 24... Qxa2 $1) 23. Ba3 {Black must now prevent d4.} e5 {Inhibits d4.} (23... Bd2 $2 24. Rxb7 $3 {[%mdl 512]} Qd7 25. Reb1 $18) (23... Nd8 $1 $11 {remains equal.}) 24. Bxf8 $16 ({Not} 24. Bxh3 $2 Rxh3 $1 {[%mdl 512]} 25. Qxh3 Qd5+ 26. Qg2 f3 $1 $19 {[%mdl 512]}) 24... Rxf8 (24... Qxf8 $142 25. d4 (25. Bxh3 Qd6 $16) 25... Qe8) 25. g5 Bb6 (25... Nd8 $16) 26. Rb3 (26. Bxh3+ $18 Kb8 27. Bg2) 26... Qe7 (26... Kb8 $142) 27. Bxh3+ Kb8 {[#]} 28. a4 (28. Bg2 $1 $16) 28... Qxg5 $14 29. Bg2 {aiming for Rb5.} (29. a5 $5 Nxa5 30. Rb5 $16) 29... Rh8 {...Qh4 is the strong threat.} 30. h3 {[%cal Oa4a5]} Re8 {Weighted Error Value: White=0.22 (precise) /Black=0.26 (precise)} (30... a6 $11 {keeps the balance.}) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.17"]
[White "Shahil Dey"]
[Black "Santanu, Borpatra Gohain"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2400"]
[BlackElo "1943"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,132,42,33,27,37,37,26,22,25,25,20,14,20,29,2,8,3,8,0,14,3,-2,-33,16,22,21,1,8,0,0,0,31,0,0,-7,72,0,6,0,28,36,52,37,39,37,39,38,56,21,53,50,39,30,59,56,83,27,61,46,51,45,58,41,73,64,96,83,118,103,112,121,114,91,93,85,172,129,157,100,153,152,164,145,139,145,143,117,165,157,159,97,165,150,154,135,208,44,177,118,155,50,89,59,118,63,91,80,194,106,143,127,206,138,528,376,383,364,515,528,1039]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Nbd2 $1 {[%mdl 4] is currently scoring better than 8.c4.} Nd6 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} 9. c3 Bf5 10. Qc2 Bxd3 {White has an edge.} 11. Qxd3 O-O 12. Ne5 Nb8 13. Re1 {[#]} Nd7 $146 ({Predecessor:} 13... c6 14. Nf1 f6 15. Nf3 Nd7 16. Ng3 Re8 17. Bf4 Nf7 18. Nf5 Bf8 19. Rxe8 Qxe8 {1-0 (51) Savon,V (2545)-Bronstein,D (2540) Odessa 1976}) 14. b3 Re8 15. c4 c6 16. Bb2 Nf6 17. f3 Nh5 18. c5 {[#]} Nb5 (18... Nf4 $1 $15 {was preferrable.} 19. Qc2 (19. Qe3 Bg5 $19) 19... Bh4) 19. Qf5 $36 {[%mdl 2048] White has good play.} Nf6 20. a4 Nc7 21. b4 g6 22. Qd3 a6 23. Nb3 Nd7 24. f4 Nxe5 (24... f5 $11 {remains equal.}) 25. fxe5 (25. dxe5 $16 {Black must now prevent f5.} Qd7 26. Rf1) 25... Qd7 26. Rf1 Bg5 27. Bc1 Ne6 28. Rf2 Qe7 29. Bxg5 Qxg5 30. Raf1 Re7 31. Rf3 Rd8 32. Rg3 Qh4 {[%cal Of7f6]} 33. Qd2 Red7 34. Qf2 {[%cal Og3g6]} Qh6 35. Qf6 (35. Nc1 $16) 35... Rb8 36. Qf3 {White is more active.} Re7 37. Qe2 Ra8 38. Qf2 Rd7 39. h4 Re8 40. Rf3 {[%cal Rf3f7]} Ree7 41. Nc1 $1 Qh5 42. Ne2 {Threatens to win with Nf4.} Qg4 43. Rg3 Qe4 44. h5 g5 (44... Re8 $16) 45. h6 (45. Re3 $1 $18 {[%cal Re3e4]} Qc2 46. h6) 45... Qg6 46. Qe3 (46. Qf6 $142) 46... Kf8 (46... Qxh6 $142 47. Nf4 Ng7) 47. Rf6 $16 Qb1+ 48. Kh2 {Rxg5 is the strong threat.} Qe4 49. Qd2 Qh4+ 50. Kg1 Ke8 (50... Nf4 $16 {might work better.} 51. Re3 Nxe2+ 52. Rxe2 Re6) 51. Rh3 Qg4 52. Rd3 (52. Qd3 $142 {[%cal Od3h7]} Qe4 53. Re3 Qxd3 54. Rxd3) 52... Kd8 (52... Kf8 $16) 53. b5 axb5 54. axb5 Ke8 (54... cxb5 $16 55. Rb3 Ke8) 55. Qb2 $2 (55. Qd1 $18) 55... Qe4 (55... Kf8 $1 $14) 56. Rff3 (56. Qc2 $1 $18) 56... g4 {[#]} 57. Rg3 ({Better is} 57. Ng3 $1 $16 Qg6 58. Rf5 (58. bxc6 bxc6 59. Rf5 Qxh6 $16)) 57... Rd8 58. Ra3 {[%cal Bd3a3,Ba3a2,Ba2f2][%mdl 32]} Qf5 {[#]} ({Black should try} 58... Kf8 $14) 59. Rge3 (59. Ra1 $1 $16) 59... Qg6 {[#]} 60. Ng3 $1 Ng5 (60... Red7 $16 {was worth a try.}) 61. Qe2 ({White should play} 61. Qf2 $18) 61... Ne6 62. Qd1 Red7 (62... Nc7 $16) 63. Ra2 Nc7 $2 {[%mdl 8192]} (63... cxb5 $16 64. Rf2 Qxh6 65. Qxg4 Ra8 66. Qg8+ Qf8 67. Qxh7 Ra1+ 68. Kh2 Kd8) 64. b6 Ne6 65. Rf2 {Hoping for Nf5.} Ra8 (65... Qxh6 {is a better defense.} 66. Qxg4 Qg5 67. Qxg5 Nxg5) 66. Nf5 $18 Rad8 {Weighted Error Value: White=0.23 (precise) /Black=0.26 (precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.18"]
[White "Sidhant, Mohapatra"]
[Black "Himanshu Ranjan"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2359"]
[BlackElo "1884"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,101,-3,93,-4,-4,-6,16,21,25,8,25,26,26,20,60,63,66,64,82,62,68,78,77,62,91,85,90,74,112,110,111,87,95,102,102,93,102,81,93,83,109,94,143,142,190,173,164,142,232,224,254,258,331,319,329,323,334,299,454,449,429,425,460,403,395,385,303,223,613,597,594,584,784,840,692,557,766,767,700,687,742,732,739,741,802,793,924,829,4798,4260,29982,29983,29982,29980]} 1. Nf3 Nf6 2. d4 e6 3. Bf4 d5 4. e3 c5 5. c3 Nh5 (5... Bd6 $11) 6. Be5 {[#] D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} ({White should play} 6. Bxb8 $16 {Hoping for Bb5+.} Rxb8 7. Bb5+ Ke7 8. dxc5) 6... Nc6 $146 ({Predecessor:} 6... Bd6 7. Bd3 Nc6 8. Bb5 O-O 9. Bxd6 Qxd6 10. Bxc6 bxc6 11. Ne5 Nf6 12. O-O Ba6 13. Re1 {0-1 (34) Castro,D (1660)-Moreno,J (1802) Lichess.org INT 2020}) 7. h3 Bd6 8. Bb5 {The position is equal.} O-O 9. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3c5][%mdl 32]} Nf6 10. Bxc6 bxc6 11. Qa4 Bb7 12. Bxd6 Qxd6 13. Qa3 Rfd8 14. Nb3 cxd4 15. Qxd6 $1 Rxd6 16. cxd4 Ne4 17. Nfd2 Nxd2 18. Kxd2 Kf8 19. Nc5 Bc8 20. Rhc1 {White is more active.} Rb8 21. b3 f6 22. f4 Ke7 23. Rc3 Rd8 24. Rac1 Kd6 25. g4 Re8 (25... Rb6 $142) 26. e4 $16 h6 (26... Ke7 $16 27. e5 Rf8) 27. e5+ Kc7 28. Re3 {[%cal Of4f5] Threatens to win with f5!} fxe5 (28... Rf8 $16 29. Rf1 fxe5) 29. Rxe5 $18 Kd6 {[#]} 30. f5 $1 Bd7 31. fxe6 Bc8 32. Rce1 Re7 33. h4 a5 (33... Bb7 $142 34. Rf1 Rh8) 34. Kc3 Ra8 35. a4 Rb8 36. Rf1 Rxe6 37. Nxe6 Bxe6 {[%mdl 4096] Endgame KRR-KRB} 38. g5 {Black must now prevent gxh6.} h5 (38... c5 39. Rfe1 cxd4+ 40. Kxd4 Rb4+ 41. Kc3 d4+ 42. Kd3 Bxb3 43. Rxa5 hxg5 44. Rxg5 Rxa4) 39. Rfe1 Bd7 40. Re7 g6 41. Rg7 Bf5 42. Ra7 Be4 43. Rf1 {[%cal Rf1f6] Inhibits Rf8.} Bf5 44. Rxa5 Re8 45. Ra7 Re3+ 46. Kb2 Re4 47. a5 {[%cal Ba4a5,Ba5a6,Ba6b7][%mdl 32]} Rxd4 48. a6 Rb4 49. Rb7 Rxb7 50. axb7 Kc7 {[#]} 51. Rxf5 $1 {[%mdl 512] Weighted Error Value: White=0.14 (very precise) /Black=0.48} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.19"]
[White "Sparsh Khandelwal"]
[Black "Dhananjay S"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1927"]
[BlackElo "2310"]
[Annotator "TA"]
[PlyCount "142"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,142,12,6,-2,-16,-20,-23,-20,-36,-36,-29,-31,-28,-29,-30,-28,-32,-31,-35,-34,-56,-40,-56,-61,-58,-50,-67,-52,-62,-50,-60,-52,-66,-66,-68,-49,-57,0,-64,-61,-69,-73,-73,-66,-86,-70,-71,-65,-68,-65,-64,0,-75,-61,-67,-64,-66,-57,-74,-73,-90,-64,-67,-61,-66,-60,-63,-41,-62,-65,-82,-80,-65,-84,-92,-87,-90,-84,-94,-70,-104,-84,-84,-71,-100,-97,-108,-68,-94,-70,-123,-89,-91,-79,-83,-82,-81,-77,-94,-62,-62,-34,-34,-34,-34,-37,-37,-30,-30,-30,-30,-30,-30,-30,-81,-30,-30,-8,-30,-8,-14,-14,-86,-56,-227,-241,-767,-739,-762,-727,-729,-610]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 g6 5. Nf3 Bg7 6. Be3 cxd4 7. cxd4 Qa5+ {B06: Modern Defence.} 8. Qd2 Qxd2+ 9. Nbxd2 {[#]} Nf6 $146 {Black has an edge.} ({Predecessor:} 9... Nh6 10. Bb5+ Bd7 11. Bxd7+ Nxd7 12. Rc1 Nf5 13. Ne4 Nb6 14. Rc7 Rb8 15. Nc5 Nd6 {0-1 (45) Vidmar,K (1821)-Kuhar,L (1907) Dobrna 2019}) 10. Ne5 O-O 11. Bc4 $1 Nbd7 12. Ndf3 Nb6 13. Bb3 Bf5 {[%cal Bc8f5,Bf5e4,Be4d5][%mdl 32]} 14. O-O Be4 15. Rac1 Bd5 16. Rc7 Rab8 17. h3 (17. Rxe7 Bxb3 18. axb3 Nfd5 $17) 17... Bxb3 18. axb3 Nbd5 19. Rcc1 Rbd8 20. Rfe1 h6 21. Bd2 Rc8 22. Be3 Rfd8 23. Kf1 Nh5 {[%cal Oh5g3]} 24. Nd3 Nhf6 25. Nde5 $1 e6 26. Bd2 Rxc1 27. Rxc1 Ne4 28. Be3 g5 29. Ke2 Nd6 30. Nc4 Nb5 31. Na3 Nd6 32. Nc4 Nf5 33. Nce5 f6 34. Nd3 Kf7 35. Bd2 Bf8 36. g4 Nd6 37. Nb4 Nb6 38. Nd3 Nb5 {Prevents Rc7+.} 39. Ba5 Ra8 ({Reject} 39... Nxd4+ 40. Nxd4 Rxd4 41. Rc7+ Kg6 42. Bxb6 axb6 43. Rxb7 $11) 40. Nc5 Rc8 $1 {[%cal Ob5d4]} 41. Nd3 Rxc1 42. Nxc1 Nd5 43. Nd3 b6 44. Bd2 Bd6 45. Be3 Kg6 46. Bd2 Kg7 47. Be3 Ne7 48. Bd2 Nc6 49. Bc3 Kf7 50. Ke3 Kg6 51. Ke2 (51. Ng1 $15) 51... a5 52. Nde1 h5 {Black is more active.} 53. Nc2 h4 54. Ne3 Ne7 55. Kd3 f5 56. Nc4 Nd5 57. Nfe5+ Bxe5 58. Nxe5+ $15 {[%mdl 4096] Endgame KBN-KNN} Kf6 59. Bd2 fxg4 60. Nxg4+ Kf5 61. Nh6+ $1 Kg6 62. Ng4 Nd6 63. Bc1 {[#]} (63. Be3 $11) 63... Nb4+ {Pair of Knights!} ({Black should try} 63... Nf6 $1 $17 {[%cal Rf6g4] And now ...Nxg4 would win.} 64. f3 Nd5) 64. Ke2 $11 Nf5 65. Be3 Nd5 66. Ne5+ Kh5 67. Ng4 (67. Kf3 $1 $11 {remains equal.}) 67... Nfe7 ({Of course not} 67... Nfxe3 68. fxe3 b5 69. Kf3 $11) 68. Ne5 $2 {[#] Now White is beyond hope.} ({Better is} 68. Kf3 $15) 68... Ng6 $1 $19 {...Nxe5 is the strong threat.} 69. Nxg6 $2 (69. Nd3 g4 70. hxg4+ Kxg4 71. f3+ Kh3 72. Bf2) 69... Kxg6 {Black is clearly winning.} 70. Bd2 Kf5 71. Kf3 Nf4 {Weighted Error Value: White=0.07 (flawless) /Black=0.10 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.16"]
[Round "5.20"]
[White "Garv Rai"]
[Black "Sangma, Rahul"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1869"]
[BlackElo "2286"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,52,-2,-7,-9,0,0,8,2,45,45,49,50,81,76,90,18,23,23,61,61,61,71,75,61,60,60,58,0,0,-12,0,0,-25,0,0,0,0,-2,-37,-34,-20,-29,325,330,251]} 1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 c6 5. h4 Bg7 6. Nf3 {A45: Trompowsky Attack.} h5 7. Ne5 Nfd7 8. Nd3 {[#] The position is equal.} b5 $146 (8... a5 $11 {might be stronger.}) ({Predecessor:} 8... Na6 9. Be2 Nc7 10. Qd2 Ne6 11. Bh2 Qa5 12. a3 Qd8 13. Bf3 a5 14. Ne2 a4 {1-0 (52) Nihal,S (2606)-Firouzja,A (2682) Xingtai 2019}) 9. a4 $14 b4 10. Nxb4 e5 11. dxe5 {White is more active.} Nxe5 {[#]} 12. Nd3 (12. Nbxd5 $1 $16 {And now Bg5 would win.} cxd5 (12... O-O 13. Nb4) 13. Qxd5 Qxd5 14. Nxd5) 12... Nc4 {[%cal Oc4b2]} 13. Ne2 Nxb2 14. Nxb2 Bxb2 15. Rb1 Qf6 16. c3 Bxc3+ 17. Nxc3 Qxc3+ 18. Ke2 (18. Qd2 $14 Qxd2+ 19. Kxd2) 18... O-O $11 19. f3 Bf5 20. Rc1 $36 {[%mdl 2048] White has good play.} Qb2+ 21. Qd2 Qxd2+ 22. Kxd2 a5 23. Bd3 Bxd3 24. Kxd3 Rc8 25. g4 f5 $2 {[%mdl 8192]} (25... hxg4 $11 26. fxg4 Nd7) 26. gxh5 $18 gxh5 {[%mdl 32768] Weighted Error Value: White=0.11 (very precise) /Black=0.44. An unexpected result.} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.1"]
[White "Das, Sayantan"]
[Black "Ratnakaran, K.."]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2459"]
[BlackElo "2316"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,134,5,0,20,22,21,7,31,34,29,24,108,84,117,110,110,110,110,116,240,243,257,253,248,248,320,335,318,311,486,474,470,449,436,324,331,247,238,191,444,231,271,251,345,347,388,362,358,356,429,420,472,491,497,513,506,516,472,504,485,469,564,491,502,397,515,508,539,532,581,632,527,535,689,684,691,691,688,672,632,375,188,331,460,0,0,0,473,257,379,374,467,441,444,204,523,507,535,95,273,170,371,0,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Be7 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} 7. Be3 b6 8. Qd2 Nc6 9. Bb5 {9.Nd1 is not played anymore.} Bb7 10. O-O-O {[#]} c4 $146 (10... Rc8 $11 {keeps the balance.}) ({Predecessor:} 10... Qc7 11. f5 cxd4 12. Nxd4 Nxd4 13. Qxd4 Bc5 14. Qf4 O-O-O 15. Bxd7+ Rxd7 16. fxe6 fxe6 {1-0 (32) Kollars,D (2622)-Dann,M (2482) Sitges 2021}) 11. f5 $1 $16 a6 12. Bxc6 Bxc6 13. fxe6 {White is more active.} fxe6 14. Ng5 Nf8 (14... Bxg5 $16 15. Bxg5 Qc7) 15. Rhf1 $18 Bxg5 16. Bxg5 Qd7 17. Qe2 $1 h6 18. Qh5+ g6 19. Qh3 h5 (19... Nh7 {might work better.}) 20. Rf6 O-O-O 21. Rdf1 Qe8 22. Ne2 {[%cal Og5h6]} Kb7 23. Nf4 {[%cal Rf4e6]} Rc8 24. Qa3 Bd7 $2 (24... Rh7 25. Kb1 Bb5) 25. Rf3 (25. Nh3 $142) 25... Nh7 26. Rxg6 {aiming for Be7.} c3 27. Rxc3 Rxc3 28. Qxc3 Nxg5 29. Rxg5 Qe7 30. h4 Rc8 31. Qd2 Be8 32. b3 a5 33. Nxh5 Bxh5 34. Rxh5 {[%mdl 4096] Endgame KQR-KQR} a4 35. Rh6 a3 36. Rf6 Qh7 37. Rf4 Rc7 38. Qf2 Ka6 39. Kd1 b5 40. g4 Rc3 41. h5 Kb6 42. Rf3 Rc6 43. Qe2 Qg7 44. Rf6 Qg5 45. Rf8 Rc3 {[#]} 46. Rf3 {Prevents Re3.} Rc6 47. Rf8 $2 (47. Qg2 $18) 47... Rc3 $1 $11 48. Rf3 $2 {[%mdl 8192]} (48. Rf1 $11 Rg3 49. Qe1 Qxg4+ 50. Kc1) 48... Rc6 $1 $18 49. Rd3 (49. Qg2 $142) 49... Qh4 (49... Qf4 $142 50. b4 Rc8) 50. Qg2 Rc7 51. Rf3 Rg7 52. Rf4 ({Not} 52. Rf6 Rxg4 53. Rxe6+ Ka7 $11) (52. Rh3 $142 Qg5 53. Qf3) 52... Rg5 $2 (52... b4 {is tougher.} 53. Kd2 Qg5) 53. Ke2 Rg8 54. Kf1 $2 (54. c4 $18) 54... Qg5 $2 (54... b4 $16 55. Ke2 Ka5) 55. Qf2 Rc8 {[#] To avoid c4} (55... b4 56. Qd2 Ka5) 56. Kg1 $2 ({Only move:} 56. c4 $1 $18 {[%cal Rc4c5]}) 56... Rc3 {The position is equal.} 57. Kg2 {b4 is the strong threat.} b4 58. Kg1 Ka5 59. Qh2 Qh6 $1 60. Rf2 {Strongly threatening Qf4.} Qc1+ 61. Kg2 Qe3 {White must now prevent ...Qe4+.} 62. Qh4 {Threatens to win with g5.} Qe4+ 63. Kh2 {And now Qd8+ would win.} Qxd4 64. h6 Qxe5+ 65. Kh1 Qe1+ 66. Kh2 {Hoping for Qd8+.} Qe5+ 67. Kh1 Qe1+ {Black escapes into a draw.  Weighted Error Value: White=0.21 (precise) /Black=0.44} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.2"]
[White "Iniyan, P."]
[Black "Ponkratov, Pavel"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2516"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,64,10,19,-12,-12,0,39,29,29,0,0,0,11,0,0,-9,0,11,22,44,77,-17,-12,-10,-16,-14,0,0,0,-36,-34,-33,-33,-31,-30,-26,-22,-53,-64,-61,-64,-88,-42,-45,-46,-41,0,0,0,-55,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. a4 Nge7 8. Nf3 Bd7 9. h4 {C19: French: 3 Nc3 Bb4: Main line: 7 Nf3 and 7 a4.} Qa5 10. Qd2 c4 11. h5 {White is slightly better.} h6 {[#]} 12. Bb2 $146 ({Predecessor:} 12. Be2 O-O-O 13. Ba3 f6 14. O-O fxe5 15. Nxe5 Nxe5 16. Bxe7 Rde8 17. Bb4 Qc7 18. dxe5 Qxe5 19. f4 Qf6 20. Bf3 Reg8 21. Bd6 {1-0 (21) Zhang,A (2077)-Karthik,D (1467) Chess.com INT 2020}) 12... f6 13. Be2 Qc7 {[%cal Rf6e5]} 14. Qe3 Nf5 15. Qf4 O-O 16. Qh2 Qb6 17. Bc1 {[%cal Oa4a5]} fxe5 {[#] And now ...Qa5 would win.} 18. dxe5 (18. a5 $1 $16 {[%cal Ra5b6]} Qc7 19. Nxe5) 18... Qa5 $11 19. Bd2 d4 $1 $36 {[%mdl 2048] Black has the initiative.} 20. Nxd4 ({Much worse is} 20. Bxc4 dxc3 21. Bc1 Rac8 $17) ({Reject} 20. cxd4 c3 21. Be3 Nb4 $17) 20... Nfxd4 21. cxd4 Qd5 22. c3 {[#] Threatens to win with Qg3.} (22. O-O $5 {[%cal Rc2c3]}) 22... Nxd4 $1 23. cxd4 Qxd4 24. O-O $1 Qxd2 25. Bxc4 {aiming for Rad1.} Qd4 26. Rad1 Qxc4 27. Rxd7 Rad8 28. Rxb7 {[#]} Rxf2 $1 29. Rxg7+ $1 $15 Kh8 {[%csl Gf2][%cal Rc4f1]} 30. Rg8+ $1 Kh7 {[%csl Gc4][%cal Rf2f1][%mdl 1024] Black has compensation.} 31. Rg7+ $1 Kh8 {[%csl Gf2][%cal Rc4f1]} 32. Rg8+ $1 Kh7 {Weighted Error Value: White=0.16 (very precise) /Black=0.10 (very precise)} (32... Rxg8 $15 33. Rxf2 Qc1+ 34. Rf1 Qe3+ 35. Kh1 Rg4) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.3"]
[White "Delgado Ramirez, Neuris"]
[Black "Mirzoev, Azer"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2615"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,71,0,12,0,9,6,12,0,17,13,38,0,0,0,14,11,16,17,19,18,43,44,37,49,54,53,97,105,122,118,207,222,410,408,514,518,513,491,470,455,638,637,700,698,673,669,666,589,756,755,726,692,734,710,1512,1440,29990,29991,29991,2834]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 Nf6 6. O-O Be7 7. h3 O-O 8. Re1 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Re8 9. c3 Nbd7 10. Bc2 {The position is equal.} b6 11. d4 Bb7 12. Be3 $5 {[%mdl 4] Recently 12.Bf4 got a lot of attention. An interesting side line.} Bf8 13. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3,Bg3h5,Bh5f6][%mdl 32] [#]} h6 $146 ({Predecessor:} 13... g6 14. Bb3 Bg7 15. a4 a6 16. Qb1 d5 17. Qa2 b5 18. Bc2 c6 19. Bf4 Nh5 {1-0 (31) Gonzalez Vidal,Y (2456)-Valdes Romero,L (2408) Santa Clara 2003}) 14. Nf1 a6 15. Ng3 b5 16. Nh2 Nb6 17. Ng4 Nxg4 18. Qxg4 {aiming for Nf5.} Bc8 19. Qf3 Be6 {White now steadily converts the win.} (19... g6 $14) 20. Nh5 $1 $16 {[%cal Oe3h6] White is more active.} ({Much worse is} 20. Qe4 $6 g6 21. Qf3 Bd5 $11) 20... Qh4 21. Bxh6 $1 $40 {[%mdl 128] Threatens to win with Re4. White wants a kill.} gxh6 (21... Bd7 $16 {was necessary.}) 22. Re4 $18 Qg5 (22... Qe7) 23. h4 $1 Qg6 24. Nf6+ Kg7 {[#]} 25. Rxe6 {[%mdl 512]} Rxe6 26. Bxg6 Rxf6 (26... fxg6 $142 27. Nd7 d5 28. Nxb6 Rxb6 29. Qxd5 Re8) 27. Bf5 Re8 28. g4 {[%cal Bg2g4,Bg4g5,Bg5h6][%mdl 32]} d5 29. g5 Rd6 30. b3 Re7 31. Kh1 {Hoping for Rg1.} Kh8 32. Rg1 Bg7 33. Qd1 Rd8 34. gxh6 Bf6 35. Qg4 Ree8 36. Bd3 {Weighted Error Value: White=0.07 (flawless) /Black=0.59} (36. Qh5 $142 Nd7 37. h7 Re7 38. Qg4 Ree8 39. Bxd7 Rf8 {[#]} 40. Qf4 $1 Bxd4 41. cxd4 f6 42. Qg3 $1 Rxd7 43. Qg8+ Rxg8 44. hxg8=Q#) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.4"]
[White "Rios, Cristhian Camilo"]
[Black "Stany, G.A."]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2449"]
[BlackElo "2517"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,123,17,14,23,0,5,0,0,-33,-27,-43,-50,-68,-18,-8,0,-84,-71,-56,-45,-54,-43,-81,-58,-128,-133,-136,-120,-131,-126,-116,-91,-85,-80,-66,-72,-74,-86,-67,-99,-129,-121,-124,-82,-206,-216,-260,-247,-254,-243,-243,-190,-312,-315,-711,-556,-1083,-265,-802,-333,-432,-414,-369,-162,-160,-161,-162,-162,-162,-108,-118,-108,-102,-97,-100,-120,-150,-141,-224,-219,-252,-208,-204,-169,-179,-142,-141,-141,-139,-137,-127,-8,-8,-8,-8,-8,-8,0,0,0,-22,-22,-114,-22,-22,-22,-22,29982,29983,29983,29984,29984,29985,29985,29985]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. Qa4+ Nc6 6. Ne5 Qd6 {A16: English Opening: 1...Nf6 with ...d5.} 7. Nxc6 Qxc6 8. Qd4 Nxc3 {The position is equal.} 9. bxc3 (9. Qxh8 $2 Nxa2 $1 10. b3 Nxc1 $19) (9. dxc3 $5 {[%cal Rd4h8]} f6 10. e4 $11) 9... f6 10. e4 e5 {[#]} 11. Qe3 $146 ({Predecessor:} 11. Qc4 Bc5 12. a4 Qb6 13. Qe2 {½-½ (13) Karasev,V (2367)-Borisovsky,D (2298) St Petersburg 2016}) 11... Bc5 (11... Be6 $15) 12. d4 $11 Bb6 $36 {[%mdl 2048] Black has the initiative.} 13. Be2 (13. a4 $11 Qd6 14. Bb2) 13... Be6 $1 $17 14. O-O Bc4 15. Bxc4 Qxc4 16. Qf3 O-O-O 17. a4 (17. Qxf6 exd4 18. Bd2 Rhe8 $17) ({White should play} 17. dxe5 $15 fxe5 18. Be3) 17... exd4 18. a5 Bc5 (18... Qxc3 19. Qxc3 dxc3 20. axb6 axb6 21. e5 $16) 19. cxd4 Bxd4 20. Rb1 Rhe8 {[%cal Oe8e4]} 21. Bf4 Qe6 ({Don't take} 21... Rxe4 22. Rbc1 Rxf4 23. Qxf4 $18 (23. Rxc4 Rxf3 24. gxf3 c5 $17) (23. Qh3+ Kb8 $11)) 22. Rfc1 c5 23. e5 {[%csl Gb1][%cal Rf3b7]} Rd7 24. exf6 Qxf6 25. Rb5 {[%cal Oa5a6] a6! is the strong threat.} Re6 26. h4 {To avoid g5} a6 ({Much worse is} 26... Qxh4 $6 27. Rcxc5+ Bxc5 28. Rxc5+ Rc6 29. Rxc6+ bxc6 30. Qxc6+ Kd8 31. Bd6 $11) (26... Qf5 $142 27. Kh2 a6) 27. Rb3 (27. Rbxc5+ $17 Bxc5 28. Rxc5+ Rc6 29. Rxc6+ Qxc6 30. Qe2) 27... Qxh4 $19 28. Bg3 Qf6 29. Qg4 h5 30. Qh3 Qf5 31. Qh4 (31. Qxf5 {was worth a try.} gxf5 32. Kf1) 31... Re4 32. Qh2 (32. Qh3) 32... Rde7 {( -> ...Re1+)} 33. Kf1 {To avoid Re1+} Qe6 $2 (33... g5 34. Qh3 g4) 34. Rbb1 $2 (34. Qh3) 34... Qf6 (34... h4 $142 35. Bd6 Rf7) 35. f3 R4e6 {Strongly threatening ...Qf5.} 36. Qh3 Qf5 (36... g5 $142 {aiming for ...Qg6.} 37. Bf2 Bxf2 38. Kxf2 Qd4+ 39. Kf1 Kb8 40. Qg3+ Re5) 37. Qxf5 gxf5 38. Bf2 Bxf2 39. Kxf2 {[%mdl 4096] Endgame KRR-KRR} Rc6 ({Better is} 39... Re2+ $19 40. Kf1 R2e5) 40. Rc4 $17 Kc7 41. Rh1 Rh7 42. Kg3 Kd6 43. Rd1+ Ke5 44. f4+ (44. Rd2 $17 {keeps fighting.}) 44... Ke6 $1 $19 45. Kh4 Rd7 46. Re1+ Kf6 47. Re5 Rd4 48. Rxd4 cxd4 $17 {KR-KR} 49. Rd5 {Prevents Rd6.} Rc4 {Hoping for ...Ke6.} 50. Kxh5 Rb4 (50... Ra4 $17 {White must now prevent ...Ke6.} 51. g4 Ke6) 51. g4 $11 fxg4 52. Kxg4 Ke6 53. Rd8 Ra4 54. f5+ Kf6 55. Rd6+ Ke5 56. Re6+ Kd5 {Threatens to win with ...d3+.} 57. Re7 $1 d3+ 58. Kf3 Kc4 $2 {[%mdl 8192] [#]} (58... Kc6 $11 59. Ke3 Rxa5) 59. Re4+ $1 {White mates.} Kb3 60. Rxa4 Kxa4 {[#]} 61. Ke3 $1 Kb4 62. Kxd3 {Never resign too early!  Weighted Error Value: White=0.40/Black=0.51} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.5"]
[White "Visakh N R"]
[Black "Kaustuv, Kundu"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2522"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,102,8,0,0,8,19,11,0,22,15,32,29,26,0,0,0,0,0,0,0,0,0,0,0,0,127,-10,-15,-25,-27,-28,0,0,0,-36,23,22,31,-68,-60,-50,-65,-197,-204,-215,-218,-222,-222,-196,-231,-347,-326,-534,-502,-530,-524,-762,-754,-734,-538,-521,-513,-491,-504,-480,-471,-755,-788,-750,-741,-741,-727,-935,-897,-902,-856,-1060,-1081,-1871,-1736,-1609,-1510,-29974,-29976,-29979,-29980,-29989,-29990]} 1. d4 d5 2. c4 e6 3. Nf3 a6 4. g3 dxc4 5. Bg2 Nc6 6. O-O Rb8 7. e4 Nf6 8. Nc3 Be7 9. Qe2 b5 {9...Nxd4 is vanishing. E04: Open Catalan: 5 Nf3.} 10. Rd1 O-O 11. d5 exd5 {And now ...d4 would win. The position is equal.} 12. e5 $1 d4 13. exf6 Bxf6 14. Qe4 {Prevents Bf5.} Bb7 15. Nd5 Nb4 $1 16. Nxf6+ Qxf6 17. Qf4 ({Of course not} 17. Qxd4 Rfd8 18. Qxd8+ Rxd8 $17) 17... c5 $1 18. Qxf6 gxf6 19. Bf4 Rbd8 20. Bc7 Rd7 {[#]} (20... Rc8 $1 $11 {keeps the balance.} 21. Bd6 Rfd8) 21. Ba5 $146 (21. Bb6 $1 $16 {[%cal Rb6c5]}) ({Predecessor:} 21. Bb6 Nd3 22. Rxd3 cxd3 23. Bxc5 Re8 24. Nd2 Bxg2 25. Kxg2 Re2 26. Rd1 a5 27. a3 {½-½ (92) Trost,E (2184)-Agmanov,Z (2404) Belgrade 2021}) 21... Nd3 $11 22. b3 Re8 23. Rab1 Re2 24. bxc4 Rxa2 25. Bd2 {A strong pair of Bishops.} bxc4 (25... Bxf3 $15 26. Bxf3 Ne5) 26. Bh6 {[%cal Of3d4] Nxd4! is the strong threat.} Rb2 {[%cal Oc4c3] White must now prevent ...c3! Really sharp!} (26... Nxf2 $2 27. Re1 Rd8 28. Rxb7 $18) (26... Rxf2 $2 27. Bh3 $1 Rd8 28. Rxb7 $18 (28. Ne1 Rb2 $11)) 27. Ne1 (27. Nd2 $14 c3 28. Rxb2 Nxb2 29. Re1) 27... Rxb1 $1 $15 {Black is much more active.} 28. Rxb1 Nb4 29. Bxb7 {This costs White the game.} ({White should play} 29. Nc2 $15 Bxg2 30. Nxb4 cxb4 31. Rxb4) 29... Rxb7 $19 30. Nf3 c3 31. Re1 {[%cal Re1e8]} Rb8 {Inhibits Re8+.} 32. Re4 {[#]} f5 {Prevents Rg4+.} 33. Re5 (33. Re7 {was the only chance.} Nd3 34. Kg2) 33... Nd3 ({Stronger than} 33... d3 34. Rxc5 Na2 35. Ra5 $11) 34. Rxf5 (34. Re7) 34... Rb6 35. Rg5+ Rg6 {Hoping for ...a5.} 36. Rxg6+ fxg6 37. Kf1 c2 {Threatens to win with ...a5.} 38. Ke2 c1=Q 39. Bxc1 Nxc1+ {[%mdl 4096] Endgame KN-KN} 40. Kd2 Nb3+ 41. Kd3 (41. Kc2 $142 c4 42. Ne5) 41... a5 42. Ne5 a4 {Strongly threatening ...a3.} 43. Nc4 Kf7 44. f4 Ke6 45. g4 Nc1+ 46. Ke4 Ne2 47. f5+ gxf5+ 48. gxf5+ Kf6 49. Kd5 d3 {[%cal Bd4d3,Bd3d2][%mdl 32] Black mates.} 50. Ke4 a3 51. Nxa3 d2 {Weighted Error Value: White=0.54/Black=0.15 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.6"]
[White "Deepan Chakkravarthy J."]
[Black "Poormosavi, Seyed Kian"]
[Result "1-0"]
[ECO "E33"]
[WhiteElo "2520"]
[BlackElo "2229"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,131,6,0,21,17,37,27,39,33,49,26,29,28,23,-2,37,7,41,48,57,0,44,37,41,49,84,0,0,-34,-46,-33,18,35,41,22,58,75,51,41,38,44,50,52,66,58,56,61,54,41,146,147,142,8,147,146,124,83,130,132,160,160,160,160,165,97,189,189,153,94,80,83,54,24,38,45,126,72,77,77,84,85,104,77,79,70,70,66,403,403,390,389,29975,29976,29976,29977,29977,29978,29978,29978,29977,29978,29979,29980,29981,29982,29982,29982,29983,29984,29984,29984,29984,29985,29985,29986,29986,29987,29988,29989]} 1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. Nc3 Bb4 5. Qc2 d6 6. e3 O-O 7. a3 Bxc3+ 8. Qxc3 Re8 {E33: Nimzo-Indian: Classical: 4...Nc6.} 9. b4 e5 10. dxe5 dxe5 {White has an edge.} 11. Bb2 Bf5 12. Be2 (12. Rd1 $5 {[%cal Rd1d8]} Qe7 13. Be2 $14) 12... Ne4 13. Qb3 {[#]} a5 $146 ({Predecessor:} 13... f6 14. Rd1 Qe7 15. c5+ Kh8 16. O-O Rad8 17. Qc4 Qe6 18. h3 a6 19. Rfe1 Rxd1 20. Rxd1 {½-½ (38) Rantanen,M-Barcza,G Munich 1958}) 14. Rd1 Qf6 (14... Qe7 $5 {[%cal Ra5b4]} 15. b5 Nc5 $11) 15. O-O (15. b5 $5 {[%cal Rb5c6]} Nc5 16. Qc3 $14) 15... a4 16. Qa2 Ng5 17. b5 (17. Ba1 $14) 17... Nxf3+ (17... Bg4 $1 $11) 18. Bxf3 $14 Na5 19. Bc3 Qg5 20. Bxa5 {This bishop pair is nice.} (20. Rd5 $1 $16) 20... e4 $1 $11 21. Bxc7 exf3 {[%csl Gf3][%cal Rg5g2]} 22. Bg3 $1 Qh5 (22... fxg2 $15 23. Kxg2 Qh5) 23. Rd4 Be4 (23... fxg2 24. Rc1 $11) 24. Rc1 fxg2 25. c5 Rad8 26. c6 {[%cal Od4e4]} Rxd4 27. exd4 Qxb5 28. c7 Bf5 {[%cal Ob5f1] ( -> ...Qf1+!)} 29. Qc4 {To avoid Qf1+. Really sharp!} Qxc4 (29... Qb2 $2 30. c8=Q Bxc8 31. Qxc8 $18) 30. Rxc4 $14 {[%mdl 4096] Endgame KRB-KRB} Bh3 {[%cal Re8e1]} 31. f3 {[%mdl 1024] White has compensation.} b5 (31... f6 $1 $14) 32. Rc5 $16 {And now Rh5 would win.} f6 33. Rh5 (33. Rxb5 $16 {Black must now prevent Rh5.} Kf7 34. Rh5) 33... Bd7 (33... b4 $11 34. axb4 (34. Rxh3 $2 b3 $19) 34... g5 35. Rxh3 a3) 34. Rd5 $1 (34. Kxg2 g5 35. h4 b4 36. axb4 a3 37. hxg5 a2 $17) 34... Bh3 {[%cal Ob5b4]} 35. Rxb5 Kf7 (35... g5 $142) 36. Rh5 {[%csl LRh3,LRh7]} Bd7 37. Rd5 $1 ({Don't play} 37. Kxg2 Re2+ 38. Kg1 Re3 $16) ({And not} 37. Rxh7 Bf5 38. Rh5 g5 39. Kxg2 Kg6 $17) 37... Ke7 38. Kxg2 Ra8 39. h4 ({White should play} 39. Rc5 $18) 39... Ra6 (39... Ra7 $16) 40. Rc5 Bc8 41. d5 {White is more active.} (41. Rh5 $142 $1 {[%cal Rh5h7]}) 41... Rb6 42. d6+ Kd7 43. Rc4 Rb2+ 44. Kg1 Bb7 {To avoid Re4} (44... Rb1+ $14 45. Kf2 Rb2+ 46. Kg1 Rb1+ 47. Kf2 Rb2+ 48. Kg1) 45. Rxa4 ({White should try} 45. c8=B+ Bxc8 46. Rc7+ Kd8 47. Rxg7) 45... Bxf3 46. Rc4 {[%cal Rc7c8]} Bb7 47. Rc3 {Strongly threatening Re3.} Re2 {Inhibits Re3.} 48. a4 {[%cal Ba3a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} h5 49. Kf1 Re4 50. a5 g5 $2 {[%mdl 8192] This costs Black the game.} (50... Ba6+ $14 51. Kf2 Re2+ 52. Kg1 (52. Kf3 Ra2 $16) 52... Re4) 51. hxg5 $18 fxg5 {[#]} 52. Rf3 $1 Re1+ $2 (52... Rf4 $18 53. Rxf4 gxf4 54. Bxf4 h4) 53. Kxe1 {White mates.} Bxf3 {[#] KB-KB} 54. a6 $1 Bg4 55. a7 Bf3 56. Kf2 Bb7 57. Be5 h4 58. Bf6 h3 59. Kg3 g4 60. Be5 Bf3 61. Kh4 Kc8 62. Bg3 Kd7 63. Kg5 Bb7 64. Kf6 Bc6 65. Bh2 Ba8 66. c8=Q+ {Weighted Error Value: White=0.12 (very precise) /Black=0.32} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.7"]
[White "Dhananjay S"]
[Black "Mosadeghpour, Masoud"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2310"]
[BlackElo "2511"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,83,39,20,9,18,-22,-22,-14,-12,-18,-21,-22,-22,-22,-12,-12,0,-14,-6,-16,-7,-8,-10,-22,0,0,0,-13,0,0,0,-10,0,0,0,0,0,0,0,0,0,0,0,0,16,0,30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]} 5. Bf4 dxc4 6. e3 Nb6 7. Ne5 {D37: Queen's Gambit Declined: 5 Bf4.} Nfd5 {[#]} 8. Bxc4 $146 ({Predecessor:} 8. Bg3 Nxc3 9. bxc3 Qd5 10. Qc2 Bd6 11. a4 Qa5 12. Nxc4 Nxc4 13. Bxc4 O-O 14. e4 b6 {½-½ (39) Zanan,E (2510)-Wilhelm,T (2234) Karlsruhe 2019}) 8... Nxc3 9. bxc3 Nxc4 10. Qa4+ c6 {[#] Strongly threatening ...Nxe5.} 11. Qxc4 Qd5 12. Qxd5 exd5 13. Kd2 Bf5 14. a4 h5 15. Nd3 Be7 16. h3 g5 17. Bh2 O-O-O 18. a5 f6 19. Rhc1 g4 20. hxg4 hxg4 21. Bg3 a6 22. Nc5 Rh7 23. Rh1 Rdh8 24. Rxh7 Rxh7 25. Ke2 Bd8 26. f3 Be7 27. Kf2 Bf8 28. Bf4 Kd8 29. Kg3 gxf3 {The position is equal.} 30. gxf3 Ke8 31. Kg2 Bh3+ 32. Kf2 Bc8 33. Rg1 Kf7 34. Rb1 Kg8 35. Rg1+ Rg7 36. Rb1 Rh7 {Inhibits Bh6.} 37. Rg1+ Rg7 38. Rb1 Rf7 39. Rg1+ Kh8 40. Rh1+ Rh7 41. Rb1 Kg8 42. Rg1+ {An interesting draw.  Weighted Error Value: White=0.05 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.8"]
[White "Fawzy, Adham"]
[Black "Imocha, Laishram"]
[Result "1-0"]
[ECO "C15"]
[WhiteElo "2476"]
[BlackElo "2049"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,57,0,9,13,25,-9,30,29,46,33,81,51,58,54,59,62,95,75,84,103,178,181,193,194,299,202,223,247,246,233,337,356,336,336,434,437,722,684,685,629,559,539,499,482,1171,1122,1041,1013]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Ne7 6. Qf3 Nbc6 {6...Nbc6 is better than 6...c5.} 7. Nge2 {C01: French: Exchange Variation.} Be6 8. Qg3 {[#]} Kf8 $146 ({Predecessor:} 8... O-O 9. Bf4 Ba5 10. Bh6 Ng6 11. Bg5 f6 12. Bd2 Qd7 13. Nd1 Bxd2+ 14. Kxd2 Nge7 {0-1 (36) Bromann,T (2396)-Nikolic,P (2576) Germany 2018}) 9. a3 {White has an edge.} Ba5 10. Be3 a6 (10... Nf5 $14 {should be considered.} 11. Qf4 Nce7) 11. b4 Bb6 12. Qf3 {Prevents Nf5.} Qd7 13. h3 $1 {To avoid Bg4} Re8 {White leaves nothing to chance now.} 14. g4 Nc8 {[%cal Oc6d4]} 15. O-O-O {White is more active.} Nd8 {[#]} (15... N6e7 $16 {was necessary.}) 16. Nf4 $1 $18 c6 17. Nh5 {[%cal Oh5g7] Strongly threatening Nxg7!} f6 (17... Qe7 {is a better defense.} 18. Na4 a5) 18. Na4 ({Inferior is} 18. Nxf6 gxf6 19. Qxf6+ Kg8 $15) 18... Qf7 19. Rhe1 Ba7 20. Nc5 Bxc5 (20... a5 $142 21. bxa5 Ne7) 21. dxc5 ({Not} 21. bxc5 Kg8 22. Bd2 Rf8 $18) 21... Bd7 22. Qg3 Ne6 23. f4 {[%cal Bf2f4,Bf4f5][%mdl 32] White is clearly winning.} g6 {[#]} (23... h6 $142 24. Kb2 a5) 24. f5 $1 Ng7 25. fxg6 hxg6 26. Nf4 Ne7 27. Bd4 {[%cal Oe1e7] Black must now prevent Rxe7!} Ne6 (27... Rh6 $142 28. g5 Ngf5) 28. Nxe6+ Bxe6 29. Qd6 {Weighted Error Value: White=0.12 (very precise) /Black=0.34} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.9"]
[White "Aradhya, Garg"]
[Black "Karthik Venkataraman"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2236"]
[BlackElo "2485"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,122,-21,-16,-18,0,-4,6,-3,4,0,0,0,1,0,-8,0,-9,0,0,0,0,-30,-31,-62,-63,-105,-96,-102,-48,-47,58,81,81,-3,-9,-47,-39,-42,-43,-123,18,16,17,0,17,13,18,0,146,67,316,318,283,93,96,73,110,91,272,62,57,57,275,26,939,918,892,868,5085,2879,818,6119,1054,1054,314,803,401,859,6498,0,0,0,5651,5197,1336,1337,1218,1141,990,1098,789,650,434,0,891,831,496,162,112,22,29972,29973,29967,11241,29986,29987,29987,29988,29989,29990,29988,29988,29993,29989,29999]} 1. d4 a6 2. e4 e6 3. c4 d5 4. e5 c5 5. Nf3 Nc6 {[#]} 6. Nc3 $146 {C01: French: Exchange Variation.} ({Predecessor:} 6. Bg5 Qb6 7. b3 cxd4 8. Bd3 dxc4 9. Bxc4 h6 10. Bc1 Qa5+ 11. Bd2 Qc7 12. Qe2 {0-1 (21) Xavier,U-Sales,J Salvador 2011}) 6... cxd4 7. Nxd4 Nge7 8. cxd5 {The position is equal.} exd5 9. Be2 Nxd4 10. Qxd4 Be6 11. O-O Nc6 12. Qf4 g6 13. Rd1 {[%cal Oc3d5]} Bg7 14. Nxd5 Bxe5 15. Qe4 O-O $1 16. Bf4 Bxb2 17. Nc7 {[#]} (17. Rab1 $15 Bf5 18. Ne7+ Nxe7 19. Rxd8 Bxe4 20. Rxf8+ Kxf8 21. Rxb2) 17... Bf5 $1 $17 18. Qe3 Bd4 (18... Nd4 $17 {Threatens to win with ...Rc8.} 19. Be5 Bxa1 20. Nxa8 Re8 $1 21. Rxa1 Nc6) 19. Nxa8 $15 {[%cal Og2g4]} Re8 {[#]} (19... Bxe3 $15 20. Rxd8 Rxd8 21. Bxe3 Rxa8) 20. Qf3 $1 $14 Be4 (20... Qxa8 21. Rac1) 21. Qb3 (21. Rxd4 $2 Qxd4 22. Qe3 Qxa1+ $19) (21. Qg3 $16 {aiming for Nc7.} Qxa8 22. Rac1) 21... Qf6 $1 $11 22. Be3 {Rac1 is the strong threat.} (22. Rxd4 $2 Nxd4 23. Rd1 Nxb3 $19) 22... Bxa1 23. Nc7 Rb8 24. f3 {[#]} (24. Qa4 $15 Qe5 25. f4 Qxc7 26. Qxe4) 24... Be5 25. fxe4 Bxc7 26. Rf1 Qe5 {[%csl LRe4,LRh2]} 27. Qxf7+ Kh8 28. g3 {And now Bh6 would win. Active counter play!} Bd6 {[#]} (28... Qxe4 $11 {keeps the balance.} 29. Qf6+ Kg8) 29. Bc4 (29. Bh6 $1 $16 {Strongly threatening Rf6.} Nd4 30. Bd3) 29... Qc3 ({Black should play} 29... Bc5 $1 $14 30. Bxc5 Qxc5+ 31. Kh1 Qe7) 30. Bg5 $18 {This bishop pair is nice.} Qd4+ 31. Rf2 $2 (31. Kg2 $18 {and White stays clearly on top. White wants to mate with Bf6+.} Be7 32. Bh6 (32. Bxe7 Qxe4+ 33. Kh3 Qxe7 $11) 32... Qb2+ 33. Rf2) 31... Be5 $16 32. Bd5 Nb4 33. Kg2 {[%cal Of7f8] White threatens Qf8+! and mate. The board is on fire.} Nxd5 $2 (33... Bg7 $16) 34. Qxd5 $2 (34. exd5 $18 {Black must now prevent Re2.} Qe4+ 35. Kh3) 34... b5 $14 35. Rf7 {Hoping for Qe6.} Re8 {Prevents Qe6.} (35... Bg7 $1 $14) 36. Rd7 $2 $40 {[%mdl 128] White is up to no good.} (36. Qc6 $18 {[%cal Rc6e8]} Rg8 37. Kh3 (37. Qxa6 Qxe4+ 38. Kh3 Bg7 $11)) 36... Qb2+ $2 {[%mdl 8192] [#]} (36... Qc4 $11) 37. Kh3 $1 $18 {Intending Qf7 and mate.} Qf2 38. Rd8 ({Worse is} 38. Qf7 Qxf7 39. Rxf7 Kg8 $11) 38... Qf1+ 39. Kh4 {Qxe5+ would kill now.} Bxg3+ 40. hxg3 Qh1+ 41. Kg4 {[%cal Rg5f6]} h5+ 42. Kf4 Qf1+ 43. Ke3 Qe1+ 44. Kf3 Qf1+ 45. Ke3 Qe1+ 46. Kd3 Qxg3+ 47. Be3 Rxd8 48. Qxd8+ Kg7 49. e5 Qg4 {Inhibits Qd7+.} 50. Qc7+ Kg8 51. Qd8+ ({Better is} 51. Bh6 $18 {[%csl Gh6][%cal Rc7g7]} Qf3+ 52. Kd4) 51... Kh7 {[%mdl 8192]} (51... Kg7 $11) 52. Qe7+ Kg8 53. Qc5 $2 (53. Bd2) 53... Qd1+ ({Black should try} 53... Kf7 $18 54. Qc7+ (54. Qd5+ Qe6 $16) 54... Ke8 55. Qb8+ (55. Kc3 Qe6 $18) 55... Kf7) 54. Kc3 (54. Bd2 $16 Qb1+ 55. Ke2 Qe4+ 56. Qe3 Qg4+ 57. Ke1) 54... Qg4 $2 {[%mdl 8192]} (54... Kf7 $11) 55. Qd5+ Kg7 56. Bd4 h4 57. e6+ {White mates.} Kh7 58. Qe5 {[%csl Gd4][%cal Re5g7]} Qf3+ 59. Kb4 {[%csl Gd4][%cal Re5g7]} a5+ 60. Kxa5 {[%csl Gd4][%cal Re5h8]} Qa3+ 61. Kxb5 {[%csl Gd4][%cal Re5g7]} Qe7 62. Qh8# {Weighted Error Value: White=0.59/Black=0.58} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.10"]
[White "Tahbaz, Arash"]
[Black "Gaikwad, Siddhant"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2469"]
[BlackElo "2016"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,89,-41,-47,-63,-36,-34,-40,-65,-66,-65,-65,-66,-60,-58,-58,-58,-63,-63,-41,-51,0,-8,-13,-50,-7,-47,0,0,0,0,27,27,115,115,137,128,126,131,150,141,322,318,329,327,307,268,328,331,411,404,341,275,452,445,439,420,386,312,404,388,392,384,634,604,765,753,1204,1204,1139,1072,1833,1801,1483,1291]} 1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nge2 e6 6. O-O Nge7 7. d3 d6 8. f4 O-O 9. g4 f5 10. Ng3 {B25: Closed Sicilian: 3 g3, lines without early Be3.} Nd4 {[%cal Bc6d4,Bd4b5,Bb5c7][%mdl 32]} 11. gxf5 exf5 12. Nd5 {Black is slightly better.} Nxd5 13. exd5 Nb5 {[#]} 14. c3 $146 {[%cal Bc2c3,Bc3c4][%mdl 32]} ({Predecessor:} 14. Rb1 Bd7 15. Bd2 a5 16. c4 Nd4 17. Bc3 b5 18. cxb5 Bxb5 19. Ne2 Qe7 20. Bxd4 Bxd4+ 21. Nxd4 {1-0 (48) Pusztay,B (2152)-Akots,G (2125) Hungary 2003}) 14... Nc7 15. Be3 Qe7 16. Qd2 Qf7 17. c4 $1 Re8 {[%cal Oe8e3] [#] And now ...Rxe3! would win.} 18. Bf2 Bf6 ({Black should play} 18... b5 $15) 19. d4 b6 20. b4 Qg7 (20... cxb4 $15 21. Qxb4 Ba6) 21. Rad1 {[%cal Rb4c5]} Ba6 (21... Bxd4 $15 22. Bxd4 Qxd4+ 23. Qxd4 cxd4) 22. b5 $11 {[#] aiming for dxc5.} Bb7 23. dxc5 bxc5 24. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} h5 (24... Rab8 $11) 25. a5 $16 Rad8 26. Kh1 Rd7 27. Ne2 {[%cal Bg3e2,Be2g1,Bg1h3][%mdl 32] Prevents Bc3.} Qh6 28. Ng1 g5 $2 {This costs Black the game.} (28... h4 $16 {was necessary.}) 29. fxg5 $18 Bxg5 30. Qd3 Rg7 31. Qxf5 Rf8 32. Qd3 h4 33. Nh3 Bc8 34. Bg1 {Black must now prevent Rxf8+.} Rgf7 $2 (34... Re8 {might work better.} 35. b6 axb6) 35. Rxf7 Rxf7 36. Nxg5 Qxg5 37. h3 Rg7 {[%csl Gg7][%cal Rg5g2]} 38. Qf3 Rf7 39. Qe3 Qg7 (39... Qxe3 40. Bxe3 Ne8) 40. Re1 {White is clearly winning.} Bd7 41. Bh2 Ne8 42. b6 axb6 43. axb6 Ba4 44. Qa3 Rf2 45. Rg1 {Weighted Error Value: White=0.11 (very precise) /Black=0.44} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.11"]
[White "Priyanka, Kumari"]
[Black "Krishna C R G"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1910"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,82,39,23,39,20,48,56,74,41,50,48,58,60,75,62,73,73,68,73,90,58,53,-17,-23,-9,-15,-19,0,-31,-27,-22,-25,-17,-17,-25,0,0,0,-35,0,-79,-58,-56,-37,-332,-329,-327,-105,-118,-120,-272,-267,-378,-379,-460,-462,-768,-226,-467,-470,-448,-194,-700,-665,-802,-813,-1140,-1133,-194,-1280,-5804,-2516]} 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. O-O c6 7. a4 a5 {C41: Philidor Defence.} 8. Re1 Qc7 {is the new trend.} 9. h3 h6 {White is slightly better.} 10. Ba2 Nf8 11. Nh4 g6 12. Be3 Ne6 13. d5 Ng7 {[%cal Of6d5] [#]} 14. Nf3 $146 ({Predecessor:} 14. dxc6 bxc6 15. f4 Nfh5 16. fxe5 Bxh4 17. exd6 Qd8 18. Rf1 Ne6 19. Qf3 Qd7 20. g4 {1-0 (34) Ravi,T (2351)-Asylguzhin,R (2387) Dubai 2002}) 14... g5 15. Nd2 Ngh5 16. Bc4 Nf4 17. Bxf4 ({White should play} 17. Bb3 $14) 17... gxf4 $11 18. Bf1 Rg8 19. Kh1 Bd7 20. Rb1 Kf8 21. Nc4 cxd5 22. exd5 Qc5 {[%cal Od7h3] And now ...Bxh3! would win.} 23. Qf3 Rg5 24. Nd2 Rg7 25. Nb3 Qb6 26. Nb5 (26. Nd2 $11) 26... Nh7 27. c4 Ng5 28. c5 $2 {[%mdl 8192]} dxc5 $19 (28... Nxf3 $2 29. cxb6 Nxe1 30. Rxe1) 29. Qe2 {[#]} e4 (29... Nxh3 $1 $19 {[%mdl 512]} 30. Nd2 (30. Qxe5 $2 Nxf2+ 31. Kg1 Bh4 $19) 30... Qg6 $1 31. Qxe5 Nxf2+ 32. Kg1 Nh3+ 33. Kh1 Nf2+ 34. Kg1 Nh3+ 35. Kh1 Bh4 36. Qd6+ Qxd6 37. Nxd6 Nf2+ 38. Kg1 Ng4) 30. d6 $17 Bxd6 {[%cal Og5h3]} 31. Nxd6 $2 (31. Rbd1 $17 {keeps fighting.} f3 32. Qe3 Bxb5 33. axb5) 31... Qxd6 $19 32. Rbd1 (32. Qd2 $142 Qxd2 33. Nxd2) 32... Qe7 33. Nxc5 Bc6 ({Worse is} 33... Qxc5 34. Rxd7 Qb4 35. Red1 $11) 34. Qc2 {[#]} (34. Nd3 $142 Qf6 35. Nc5) 34... e3 $2 (34... Nxh3 $1 {[%mdl 512]} 35. Nd7+ Kg8) 35. fxe3 $2 (35. Qf5) 35... Nxh3 {aiming for ...Qh4.} (35... Nf3 $2 36. e4 Nxe1 37. Rxe1 $19) 36. e4 {[#]} ({Wrong is} 36. exf4 $2 Qh4 37. Qc3 Nxf4+ 38. Kg1 Nh3+ 39. Qxh3 Qxh3) 36... Ng5 (36... Qg5 $142 $1 {[%cal Of4f3] Strongly threatening ...f3!} 37. Rd3 {[#]} Qh4 $1) 37. Nd3 $2 (37. Qf2) 37... Nxe4 {Threatens to win with ...Qh4+.} 38. Nxf4 Qh4+ 39. Nh3 Ng5 40. Qc5+ Kg8 {( -> ...Qxh3+)} 41. Re3 Nxh3 {Weighted Error Value: White=0.85/Black=0.35} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.12"]
[White "Arpan, Das"]
[Black "Shyaamnikhil P"]
[Result "1/2-1/2"]
[ECO "E49"]
[WhiteElo "2155"]
[BlackElo "2442"]
[Annotator "ChessBase"]
[PlyCount "94"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 b6 10. O-O Ba6 11. f3 Re8 12. Bxa6 Nxa6 13. Ng3 Nc7 14. Re1 h5 15. Nh1 Qd7 16. Nf2 Nb5 17. Qd3 Nd6 18. Ra2 Rac8 19. Rae2 Qb5 20. Qd1 Qc6 21. a4 Rcd8 22. Qb3 Rd7 23. Ba3 Rde7 24. Qd1 Re6 25. Nd3 Nc4 26. Bc1 h4 27. Nf2 Nd6 28. Nh3 R6e7 29. Ng5 Qc8 30. Qd3 Qc6 31. e4 dxe4 32. fxe4 Nfxe4 33. Bf4 c4 34. Qf3 f5 35. Bxd6 Qxd6 36. Nxe4 fxe4 37. Rxe4 Rxe4 38. Rxe4 Rxe4 39. Qxe4 Qd7 40. Qxh4 Qxa4 41. Qe1 Qd7 42. Qe5 b5 43. Qe4 Kf7 44. Qa8 b4 45. Qf3+ Kg8 46. Qa8+ Kf7 47. Qf3+ Kg8 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.13"]
[White "Mohota, Nisha"]
[Black "Nitin, S.."]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2147"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,44,8,15,0,38,22,45,25,43,34,33,39,34,33,44,36,52,34,50,26,28,15,34,28,32,29,37,-14,37,37,43,-10,19,0,28]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 c5 5. dxc5 Na6 6. O-O Nxc5 7. Be3 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} Qc7 8. Nc3 d6 9. Bd4 {White is slightly better.} O-O 10. Bxf6 exf6 11. Nd5 Qd8 12. Nd4 {Pair of Knights!} f5 13. c3 {[#]} Bd7 $146 ({Predecessor:} 13... Rb8 14. b4 Ne4 15. Qd3 Re8 16. Rac1 a6 17. c4 Be6 18. Nf4 Bd7 19. e3 Bc6 {1-0 (61) Wiebe,P (2186)-Bogomolow,S (2209) Dresden 2001}) 14. e3 Re8 15. Rc1 Ne4 16. c4 Rc8 17. b4 a6 18. Qd3 Bc6 19. Rfd1 (19. Nf4 $14) 19... Ba4 ({Better is} 19... Bxd5 $11 20. cxd5 Qe7) 20. Re1 $14 Bc6 21. Red1 (21. Nf4 $14) 21... Ba4 22. Re1 Bc6 {Weighted Error Value: White=0.16 (very precise) /Black=0.17 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.14"]
[White "Sri Sai Baswanth P"]
[Black "Gusain, Himal"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "2057"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,54,0,0,-18,-26,-24,-35,-29,-46,-15,-14,-1,-10,0,-13,0,-101,-91,-99,-75,-70,-14,0,0,-10,-18,-50,-54,-56,-56,-61,-61,-61,-61,-69,-65,-77,-72,-216,-229,-406,-400,-508,-477]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 {[%cal Bg1f3,Bf3e1,Be1c2][%mdl 32]} d6 6. O-O e5 7. Ne1 {7.a3 is setting a new trend.} Be6 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} 8. Qa4 Nge7 9. Nc2 O-O {Black is slightly better.} 10. Ne3 a6 {[%cal Ob7b5] Threatening ...b5!} 11. Ned5 Rb8 {[%cal Ob7b5]} 12. d3 {[#]} b5 $146 ({Predecessor:} 12... Bd7 13. Bg5 f6 14. Bd2 Nxd5 15. Nxd5 Nd4 16. Qd1 b5 17. b4 Bg4 18. f3 Be6 {½-½ (44) Milanovic,S (2395)-Stankovic,I (2293) Kragujevac 2016}) 13. Qxa6 {Black must now prevent Nxe7+.} Nxd5 14. cxd5 (14. Nxd5 $11 {remains equal.} Bxd5 15. Bxd5) 14... Nb4 $17 15. Qa7 Bd7 {And now ...Qc8 would win.} 16. Ne4 Bf5 ({Black should play} 16... Ra8 $15 17. Qb7 Rb8) 17. Bd2 $11 ({But not} 17. Bg5 f6 18. Be3 Rf7 $17) 17... Nxd5 (17... Ra8 $5 18. Qb7 Rb8 $11) 18. Ba5 {[#]} Ra8 19. Qb7 (19. Bxd8 Rxa7) 19... Rxa5 20. Qxd5 Ra6 21. Nc3 b4 {[%cal Bb5b4,Bb4c3,Bc3b2][%mdl 32]} 22. Qc4 {[#]} bxc3 $1 23. Qxa6 cxb2 24. Rab1 {[#]} e4 $1 25. dxe4 (25. Bxe4 $17 Be6 26. Rfd1) 25... Be6 $19 {This bishop pair is nice.} 26. Rfd1 $2 (26. f4 {was forced.} Qa8 27. Qxd6 Bd4+ 28. Kh1) 26... c4 {Hoping for ...c3.} 27. Rxd6 Qc8 {Weighted Error Value: White=0.31/Black=0.07 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.15"]
[White "Praloy Sahoo"]
[Black "Shahil Dey"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2047"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,110,37,34,35,41,0,36,0,0,0,0,0,0,0,0,0,0,-35,0,-35,0,0,0,0,0,0,0,-14,-19,-16,-10,-25,-29,-26,0,-36,-34,-70,-68,-68,54,-12,0,-19,-19,-19,-17,-13,-17,-15,-16,-19,-14,-48,-22,-90,-76,-76,-76,-76,-76,-97,-53,-59,-49,-50,-16,-17,-17,-37,-37,-49,-49,-50,-52,-73,-57,-79,-80,-90,-74,-97,-89,-108,-120,-176,-172,-162,-145,-145,-145,-653,-622]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bxd7+ Bxd7 6. d4 cxd4 7. Qxd4 e5 8. Qd3 h6 9. c4 Nf6 10. Nc3 Be7 {[%cal Ob7b5]} 11. a4 {Inhibits b5. The main line 11.a4 scores better than 11.b3. B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} O-O {[%cal Ob7b5]} 12. h3 (12. Be3 $14 {deserves consideration.}) 12... Bc6 {[%cal Ob7b5] [#]} (12... b5 $5) 13. Qc2 $146 {White is slightly better.} (13. Re1 {with more complications.} b6 14. b4 Bd7 15. Be3 Qc7 16. Rec1) ({Predecessor:} 13. Be3 Qc7 14. a5 Qd7 15. b4 Qc7 16. Rfc1 Rac8 17. b5 Bd7 18. Na4 axb5 19. cxb5 {1-0 (51) Huda,M (2128)-Kamara,A (1899) Chess.com INT 2020}) 13... b5 14. axb5 axb5 15. Rxa8 Qxa8 16. cxb5 Bxe4 17. Nxe4 Nxe4 18. Be3 (18. Qc7 $5 {[%cal Rc7e7]} Bd8 19. Qc6 Qxc6 20. bxc6 $15) 18... Nf6 (18... Rb8 $5 {[%cal Rb8b5]}) 19. Qb3 Nd5 (19... Rb8 {keeps more tension.} 20. Rd1 Qb7 21. b6 Nd7 22. Rd5 Nxb6 23. Rb5 Bd8) 20. Rd1 Nxe3 21. fxe3 Rb8 22. Rd5 Kh8 23. e4 Qa1+ 24. Kh2 Qc1 {Threatens to win with ...Qf4+.} 25. Rd2 Kg8 26. Qd5 Rb6 27. Qa8+ (27. b3 $5 {[%cal Rd5c4]}) 27... Bf8 28. Qa5 Rb8 {White must now prevent ...Qc4.} 29. Qa4 {Inhibits Qc4.} Kh8 (29... Rc8 $15) 30. b3 (30. Qa7 $14 Rxb5 31. Qxf7) 30... Qc5 $11 31. Qc4 Qxb5 32. Qxf7 Qxb3 33. Qxb3 Rxb3 {[%mdl 4096] Endgame KRB-KRN} 34. Nh4 Kh7 35. Nf5 Rb6 36. Rf2 {[%cal Of5h6]} Kg8 (36... Rb4 $5 {[%cal Rb4e4]} 37. Nh4 g5 $1 38. Rxf8 gxh4 $17) 37. Kg3 (37. Rc2 $11) 37... Rb3+ 38. Rf3 Rb4 39. Rd3 Rxe4 40. Nxd6 {[#]} Rb4 ({Better is} 40... Rf4 $1 $17 41. Rd5 g5) 41. Kf3 $15 Rf4+ 42. Ke3 Be7 43. Ne4 Kf7 44. Rb3 Rf1 45. Rb7 Ra1 46. Rb3 Ra6 47. Kf3 Ke6 48. Rb7 Ra3+ 49. Ke2 Bf8 50. Rb5 Kf5 51. Nf2 Bd6 52. Rd5 {[#]} (52. Nd3 $17 {was called for.}) 52... Bb8 $1 $19 53. Rd8 Ba7 {aiming for ...Ra2+.} 54. Rf8+ Ke6 {Hoping for ...Ra2+. Black is more active.} 55. Ne4 $2 {[%mdl 8192]} (55. Nd3 $17) 55... Re3+ {Weighted Error Value: White=0.34/Black=0.13 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.16"]
[White "Karthikeyan, P.."]
[Black "Singh, Soram Rahul"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2396"]
[BlackElo "2006"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,63,21,23,23,27,24,23,25,23,6,11,7,0,-72,-77,-116,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,93,93,177,175,175,175,177,176,187,188,544,559,535,512,1128,1008]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Nbd7 7. Bd3 Be7 8. Nge2 Nh5 {8...Nf8 is a critical line.} 9. Bxe7 Qxe7 10. Qd2 {D35: Queen's Gambit Declined: Exchange Variation.} g6 11. O-O O-O 12. f3 {White has an edge.} Nb6 13. e4 Be6 14. e5 f6 {[#]} 15. g4 $146 (15. f4 $11) ({Predecessor:} 15. f4 fxe5 16. fxe5 Ng7 17. Ng3 Qb4 18. Nge2 Bf5 19. a3 Qe7 20. Nf4 Bxd3 21. Qxd3 {0-1 (59) Krebs,J (2206)-Hiermann,D (2243) Austria 2019}) 15... Ng7 $17 16. Rae1 f5 ({Black should play} 16... fxe5 $17 {And now ...Nd7 would win.} 17. dxe5 Rf7) 17. h3 $11 Qh4 18. Kg2 fxg4 19. hxg4 Bxg4 20. fxg4 Qxg4+ 21. Ng3 Qxd4 {aiming for ...Nc4.} 22. Nce2 $1 {[%cal Bc3e2,Be2g1,Bg1f3,Bf3e5][%mdl 32]} Qxe5 23. Ng1 Qd4 {Hoping for ...Nc4.} 24. Nf3 $1 Qg4 (24... Qf4 $1 $11 {remains equal.}) 25. Ne5 $16 Qh4 {[#]} (25... Qd4 $16) 26. Bxg6 $1 $18 {[%mdl 512] Rh1 is the strong threat.} Nc4 (26... hxg6 27. Nxg6 Rxf1 28. Rxf1 $18) 27. Nxc4 {Dancing on a razor blade.} hxg6 28. Ne5 $36 {[%mdl 2048] White is in control.} Nh5 29. Nxh5 Qxh5 (29... Rxf1 30. Rxf1 Qxh5) 30. Rh1 {White is clearly winning.} Qf5 31. Re2 {Intending Qh6 and mate.} Qf4 {[#]} (31... g5 $142 32. Kg3 Rfe8) 32. Rh8+ $1 {[%mdl 512] Weighted Error Value: White=0.08 (flawless) /Black=0.45} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.17"]
[White "Arnav Maheshwari"]
[Black "Sidhant, Mohapatra"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1934"]
[BlackElo "2359"]
[Annotator "ChessBase"]
[PlyCount "78"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Be2 Ngf6 6. Nxf6+ Nxf6 7. Bf3 Bd6 8. Ne2 c6 9. Bg5 h6 10. Bxf6 Qxf6 11. Ng3 Qd8 12. c3 Qc7 13. Ne4 Be7 14. O-O O-O 15. Re1 b6 16. Qc2 Bb7 17. Nd2 Rad8 18. h3 Bc8 19. Rad1 c5 20. dxc5 Bxc5 21. Nb3 Be7 22. Nd4 g6 23. Qa4 a6 24. Qc6 Rd7 25. Nc2 Qxc6 26. Bxc6 Rxd1 27. Rxd1 Rd8 28. Rxd8+ Bxd8 29. Kf1 Kf8 30. Ke1 Ke7 31. b3 g5 32. c4 h5 33. Bf3 h4 34. Be2 f5 35. Bd1 g4 36. Be2 Kd6 37. Kf1 gxh3 38. b4 Ke5 39. Ne1 Kf4 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.18"]
[White "Mrinmoy Rajkhowa"]
[Black "Sai Agni Jeevitesh, J."]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "1634"]
[BlackElo "2316"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,92,0,0,6,4,20,-1,35,28,62,14,43,19,26,26,31,0,0,0,1,7,6,0,0,7,3,2,12,12,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,9]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Nf3 Bd6 7. Bd3 O-O 8. O-O Bg4 9. h3 Bh5 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 10. Re1 {10.Bf5 is more advanced technology.} Bc7 11. Be3 Qd6 12. g3 {[#]} Qd5 $146 ({Predecessor:} 12... Nd7 13. Bf1 Rfe8 14. Bg2 Nf8 15. Bf4 Qd7 16. Qd2 Rad8 17. Bxc7 Qxc7 18. Rxe8 Rxe8 {0-1 (82) Feryn,B (2197)-Gunina,V (2471) Europe Echecs INT 2022}) 13. Be2 (13. Kg2 $14) 13... b5 14. Nh4 {[%cal Bf3h4,Bh4g2,Bg2f4][%mdl 32]} Bxe2 15. Qxe2 Nd7 16. Ng2 Rfe8 {The position is equal.} 17. Qd3 Nb6 18. Bf4 Bxf4 19. Nxf4 Qd7 20. c3 a5 21. b3 Nd5 22. Nxd5 cxd5 23. Kh2 Rac8 24. Rxe8+ Qxe8 $11 {[%mdl 4096] Endgame KQR-KQR} 25. a4 bxa4 26. Rxa4 g6 27. Rxa5 {[#] Hoping for Qf3.} Qe1 {[%csl LRc3,LRf2]} 28. Qe3 ({Avoid the trap} 28. Rxd5 $2 Qxf2+ 29. Kh1 Re8 $19) 28... Qxe3 29. fxe3 {[%cal Bf2e3,Be3e4][%mdl 32] And now Rc5 would win.} Rxc3 30. Rxd5 Rxb3 {KR-KR} 31. Rd8+ Kg7 32. e4 h5 33. d5 Rb4 34. Re8 Rd4 35. Kg2 f5 36. exf5 gxf5 37. Rd8 Rd3 38. d6 Kf6 39. d7 Ke7 40. Rh8 Kxd7 41. Rxh5 Ke6 42. Rh4 Ke5 43. Ra4 Rd2+ 44. Kf3 Rd3+ 45. Kg2 Rd2+ 46. Kf3 Rd3+ {Weighted Error Value: White=0.04 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.19"]
[White "Nigmatov, Ortik"]
[Black "Borgaonkar Akshay"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2445"]
[BlackElo "1985"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,89,24,28,23,11,27,29,22,17,21,32,25,97,85,85,50,50,43,35,51,81,57,71,68,70,65,97,85,119,115,125,125,138,133,137,128,167,167,161,155,157,157,160,156,176,176,176,176,245,244,240,240,349,345,308,211,339,221,357,356,404,402,398,387,383,380,584,334,762,752,931,931,952,1319,1305,1278,1209,1087,29990,29991]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 Nf6 {[%cal Bg8f6,Bf6d5,Bd5c3][%mdl 32]} 7. f4 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} Bb4 8. Ndb5 Qa5 9. e5 {White has an edge.} Nd5 10. Bd2 {Threatens to win with Nxd5.} Nxc3 11. Nxc3 Qb6 (11... d5 $11 {remains equal.}) 12. Bd3 {[#]} Ne7 $146 ({Predecessor:} 12... Bxc3 13. Bxc3 Qe3+ 14. Qe2 Qxf4 15. g3 Qg5 16. Rg1 b6 17. h4 Qe7 18. O-O-O Bb7 {0-1 (57) Areshchenko,A (2645)-Novikov,S (2545) Moscow 2008}) 13. Ne4 {[%cal Bc3e4,Be4d2,Bd2c4,Bc4d6,Bd6b5][%mdl 32]} Qe3+ 14. Qe2 Bxd2+ 15. Nxd2 Qxe2+ 16. Kxe2 b6 17. Nc4 $36 {[%mdl 2048] White is pushing.} O-O 18. Nd6 a5 {White leaves nothing to chance now.} 19. Rhd1 {White is much more active. Black has bad knights.} Ba6 20. Bxa6 Rxa6 21. Nb5 Nd5 22. g3 {Strongly threatening c4.} Rc8 23. Rac1 Rc4 {[#]} 24. b3 $1 Nc3+ 25. Nxc3 Rxc3 26. Rxd7 $18 {[%cal Rd7d8][%mdl 4096] Endgame KRR-KRR} Ra8 {To avoid Rd8+} 27. Rd3 Rac8 {[#]} 28. Kd2 $1 R3c6 29. a4 f6 (29... h5 $142 30. c4 f6) 30. c4 fxe5 31. fxe5 Kf7 (31... Rf8 $142 32. Kc3 Rf5) 32. Ke3 Ke7 33. Rf1 {Hoping for Ke4.} R6c7 (33... h5 {might work better.} 34. Rf4 R6c7) 34. Ke4 Re8 (34... h5 $142 35. Rd6 Rb7) 35. g4 h6 36. h3 {[%cal Bh2h3,Bh3h4,Bh4g5,Bg5g6][%mdl 32]} Rb7 37. h4 Rg8 38. Rd6 {Black must now prevent g5.} Re8 (38... Rd8 $142 39. Rf7+ Kxf7 40. Rxd8 Ke7) 39. Rf3 {g5 is the strong threat.} Rg8 $2 (39... Rh8 40. Rf4 Rd8 41. Rf7+ Kxf7 42. Rxd8 Ke7) 40. g5 hxg5 41. hxg5 Rbb8 42. g6 {aiming for Rf7+.} Rgf8 {To avoid Rf7+} 43. Rxf8 Rxf8 44. Rxb6 {Threatening mate with Rb7+.} Rh8 45. Rb7+ {Weighted Error Value: White=0.17 (very precise) /Black=0.55} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.17"]
[Round "6.20"]
[White "Abdisalimov, Abdimalik"]
[Black "Pradip, Ghosh"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2435"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,2,6,11,35,20,30,26,47,36,38,41,56,29,35,34,47,44,49,46,47,41,59,61,52,54,53,30,64,43,48,23,28,0,32,31,27,11,22,34,59,37,63,45,63,63,108,63,110,115,137,126,166,166,172,167,375,384,397,397,379,371,402,395,394,402,395,388,372,359]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bg5 h6 5. Bh4 Nc6 6. Nc3 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} Nf6 7. Bxf6 (7. e3 {feels hotter.} e6 8. Nf3 Bd6 9. Bd3 Bd7 10. Rc1) 7... gxf6 8. e3 {[#] White has an edge.} Rg8 $146 ({Predecessor:} 8... e6 9. Nge2 Bd6 10. Qd2 Bd7 11. Nf4 Bxf4 12. exf4 Qb6 13. Rd1 O-O-O 14. Be2 Kb8 {½-½ (67) Theodorou,N (2543)-Mastrovasilis,A (2518) Patras 2019}) 9. Rc1 e6 10. g3 Bd7 11. Nge2 f5 12. Nf4 Qb6 13. Nd3 Bd6 14. Be2 a6 15. O-O Kf8 16. Na4 Qc7 17. Qb3 Be8 18. Nac5 Rb8 19. f4 Qe7 20. Qc3 f6 21. b4 h5 (21... Ra8 $5 {[%cal Rb7b6]}) 22. Kf2 Kg7 23. Qb3 Kh8 24. Ne1 Rc8 25. Ng2 Rg7 26. Rc3 Bf7 27. Rfc1 {[%cal Oc5a6]} Rcg8 {[#]} (27... Be8 $14 {was preferrable.}) 28. Nh4 (28. Nxb7 $1 $16 {[%mdl 512]} Nxd4 29. exd4 Qxb7 30. Rc6 Qxb4 31. Qxb4 Bxb4 32. Rxa6) 28... Be8 (28... Na7 $14) 29. Bf3 $16 Nd8 30. a4 {[%cal Ba2a4,Ba4b5][%mdl 32] White is much more active.} Rh7 31. b5 axb5 32. axb5 Nf7 $2 {[#]} (32... Rf8 {might work better.} 33. Bg2 b6) 33. Nxe6 $1 $18 {[%mdl 512] White is winning.} Qxe6 34. Bxd5 Qd7 35. Rc8 Qxb5 36. Qxb5 {Dancing on a razor blade.} ({Don't do} 36. Ng6+ Kg7 $18) 36... Bxb5 37. Rxg8+ ({Much less strong is} 37. Nxf5 Bb4 38. Bxf7 Rxf7 $18) 37... Kxg8 38. Rc8+ Bf8 (38... Kg7 {gets mated.} 39. Nxf5+ Kg6 40. Rg8+) 39. Ng6 {Weighted Error Value: White=0.06 (flawless) /Black=0.19 (very precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.1"]
[White "Ratnakaran, K.."]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2316"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,118,10,56,0,2,12,20,7,18,28,8,-19,-21,-31,6,-18,0,0,0,0,-8,-22,-4,-21,-22,-32,-35,-25,-22,-12,-22,-166,-167,-257,-264,-303,-297,-297,-295,-303,-160,-163,-169,-178,-122,-135,-138,-164,-158,-166,-155,-171,-168,-169,-166,-171,-172,-153,-150,-162,-68,-119,-133,-131,-133,-125,-141,-578,-527,-581,-587,-584,-561,-577,0,-201,0,-582,-567,-501,-470,-950,-700,-6412,-6096,-29962,-29965,-29967,-29968,-29986,-29987,-29989,-935,-983,-976,-985,-985,-914,-862,-1327,-1266,-1315,-1113,-4817,-4841,-29966,-29967,-29950,-29946,-2679,-1588]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 b6 (5... a6 $11 6. Be2 d5) 6. b3 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} (6. c3 $14) 6... Bb7 7. Bb2 Ng6 8. a4 {[#] The position is equal.} a6 $146 ({Predecessor:} 8... f6 9. Bxc6 Bxc6 10. d4 cxd4 11. Nxd4 Bb4 12. Bc3 Bc5 13. Nxc6 dxc6 14. Qxd8+ Rxd8 {½-½ (27) Ivanovic,B (2500)-Komarov,D (2600) Niksic 1997}) 9. Bf1 f6 10. Nc3 Bd6 11. Ne2 Qc7 12. c3 Nce5 13. Nxe5 fxe5 14. Ng3 O-O 15. Rc1 Rf7 16. Rc2 Rc8 17. Bc1 Be7 18. d3 b5 19. axb5 axb5 20. d4 (20. Be2 $11) 20... cxd4 $19 {[%cal Oe7b4]} 21. Bxb5 {[#]} (21. Bd2 {was necessary.}) 21... Bb4 $1 {[%mdl 512]} 22. Bd2 (22. Qg4 dxc3) 22... dxc3 23. Be3 Qa5 24. Qe2 Bc6 (24... Nf4 $19 25. Qf1 Ra8) 25. Bxc6 $17 Rxc6 26. Ra2 Qd8 (26... Qc7 $1 $19 27. Rea1 Qd6) 27. Qb5 Bf8 28. Rc1 Rc8 29. Bb6 Qe7 {[%cal Od7d5]} 30. Ba5 Qg5 $1 31. Qf1 Ra8 {[%cal Of8b4] Hoping for ...Bb4!} 32. Rcc2 h5 {[%cal Bh7h5,Bh5h4][%mdl 32] Strongly threatening ...Bc5.} 33. Bxc3 Rxa2 34. Rxa2 Nf4 (34... h4 $19 35. Ne2 h3) 35. Kh1 (35. h4 $1 $15 Qxh4 36. Bxe5) 35... h4 $1 36. Ne2 Nd3 $1 37. Ng1 Qe3 {Black is much more active.} 38. Nf3 $2 {[%mdl 8192]} (38. f3 $17 {is a better chance.}) 38... Rxf3 $19 39. gxf3 Qxf3+ 40. Qg2 Qd1+ 41. Qg1 Qf3+ (41... Qxb3 42. Qa1 Bc5) 42. Qg2 {[#]} Qd1+ $40 {[%mdl 128] Black mounts an attack.} (42... Qf4 $1 {[%cal Rf4c1]} 43. Bd2 {[#]} h3 $1 {[%mdl 512]} 44. Bxf4 hxg2+ 45. Kxg2 exf4) 43. Qg1 Qxb3 44. Qa1 Bc5 45. Kg2 (45. Kg1 $142 h3 46. Rd2 Nxf2 47. Rxf2) 45... Nf4+ 46. Kf3 Bb4 47. Ra8+ Kh7 48. Kg4 {[#]} Qc2 $1 49. Qh1 (49. Qe1 Ng2) 49... Qxc3 50. Qf3 Qxf3+ (50... Qc1 $142 51. Kxh4 Qg1 52. Qg3 Qd1 53. Qxf4 exf4 54. Kg5 Qf3 55. Re8 Qxe4 56. Kg4 f3+ 57. Kh5 Qf4 58. Rg8 Kxg8 59. h3 Be7 60. Kg6 Qh6#) 51. Kxf3 Bc5 52. Rd8 d6 53. Kg4 h3 54. f3 Kg6 55. Rd7 Kf6 {White must now prevent ...d5.} 56. Kg3 d5 {( -> ...Be3)} 57. Rc7 Be3 58. exd5 exd5 59. Kg4 g6 {Weighted Error Value: White=0.85/Black=0.50} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.2"]
[White "Das, Sayantan"]
[Black "Rios, Cristhian Camilo"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2459"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,39,62,72,108,93,216,216,216,218,216,212,273,274,425,416,416,412,471,463,653,635,640,636,1614,1539,1490,1441,1280,1219]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Bg7 5. d4 cxd4 6. cxd4 Qb6 {6...Nf6 deserves study.} 7. Nc3 $1 a6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 8. Ba4 Nxd4 {[#]} (8... Qd8 $16) 9. Nd5 $1 $18 Nxf3+ {White is clearly better.} 10. gxf3 Qd6 {[#]} 11. Be3 $146 ({Predecessor:} 11. Bf4 Be5 12. Bxe5 Qxe5 13. Rc1 Kf8 14. O-O d6 15. f4 Qxe4 16. Bc2 Qe6 17. Nc7 {1-0 (46) Quparadze,G (2481)-Molaei,M (2327) Amol 2018}) 11... b5 {[#]} 12. Rc1 $1 {Black must now prevent Nc7+.} Rb8 {[#]} (12... Be5 $142) (12... Bb7 13. Nc7+) 13. Bb6 $1 {[%mdl 512] Hoping for Bc7.} Bxb2 {[#]} (13... Nf6 14. Bc7) 14. Rc2 {Strongly threatening Bc7.} Qa3 (14... Qe5 15. Bc7) 15. Bb3 {White is clearly winning.} ({Don't do} 15. Ba7 Bb7 16. Bxb8 Qxa4 17. Rxb2 Qxd1+ 18. Kxd1 Bxd5 19. exd5 Nh6 $18) 15... Be5 (15... Bb7 $142 16. Bc5 Qa5+ 17. Bb4 Qd8 18. Rxb2 e6) 16. f4 Bd6 17. Qd4 {To avoid Nf6} Nf6 18. Nxf6+ exf6 {[#]} 19. Qxf6 $1 {[%csl Gb3][%cal Rf6f7]} Qb4+ (19... O-O 20. Bd4) 20. Kf1 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.01 (flawless) /Black=0.60} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.3"]
[White "Ponkratov, Pavel"]
[Black "Karthikeyan, P.."]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2641"]
[BlackElo "2396"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,61,18,25,7,0,18,29,35,55,43,56,60,102,66,143,155,122,147,136,141,127,107,122,120,109,105,147,101,175,161,155,97,97,98,97,106,115,125,142,134,151,134,144,92,407,409,406,398,489,474,427,394]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. g4 {seems to push 7.Qd2 aside. B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} b5 8. Nxc6 dxc6 9. Qf3 {White has an edge.} Bb4 10. O-O-O Ne7 11. h4 {[%cal Bh2h4,Bh4h5][%mdl 32] [#]} e5 $146 (11... f6 $14 {might be stronger.}) ({Predecessor:} 11... h6 12. Ne2 Bd7 13. Nf4 Bd6 14. Nh5 Rg8 15. Bxh6 Be5 16. Bf4 Bxf4+ 17. Nxf4 e5 {½-½ (30) Prusikin,M (2547)-Charnushevich,A (2499) Mulhouse 2021}) 12. h5 h6 (12... Be6 $1 $14) 13. g5 $1 $36 {[%mdl 2048] White is really pushing.} hxg5 14. Bxg5 Be6 15. Bh3 Bxh3 16. Rxh3 Qc8 17. Rg3 {[%cal Oh5h6] And now h6! would win. White is much more active. Black has bad knights.} Qe6 {Prevents h6.} 18. Kb1 (18. Bxe7 Bxe7 19. Kb1 Qf6 $11) 18... f6 (18... Rd8 $142) 19. Bc1 (19. Be3 $142) 19... Rh7 (19... Qf7 $16 {keeps fighting.}) 20. Ne2 $1 $18 Rd8 {[#]} 21. Rdg1 ({Better is} 21. Rgg1 $1) 21... Qf7 $16 22. Rh3 Bd2 23. Qg4 Qc4 24. b3 Qc5 25. Rd1 Bxc1 26. Rxd8+ Kxd8 27. Nxc1 (27. Rd3+ Ke8 28. Qd7+ (28. Nxc1 f5 $11) (28. Qe6 $2 Ba3 $19) 28... Kf7 29. Kxc1 Rxh5 $14) (27. Kxc1 $142 {Rd3+ is the strong threat.} Ke8 28. Re3) 27... Qxf2 $2 {[%mdl 8192] This move loses the game for Black.} (27... Ke8 $16 {is tougher.}) 28. Rd3+ $18 Ke8 29. Rd7 {Intending Qe6 and mate.} ({And not} 29. Qe6 Qa7 $11) 29... Nf5 30. Qg6+ ({Worse is} 30. Rb7 {[#]} Qxc2+ $3 {[%mdl 512]} 31. Kxc2 Ne3+ 32. Kc3 Nxg4 $17) 30... Kxd7 31. exf5 {Weighted Error Value: White=0.09 (flawless) /Black=0.37} ({Stronger than} 31. Qxh7 Ne3 32. Qxg7+ Ke6 33. Qg8+ Ke7 34. Qg7+ Ke8 35. Qg8+ Ke7 36. Qg7+ Ke8 37. Qg8+ Ke7 $11) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.4"]
[White "Shahil Dey"]
[Black "Deepan Chakkravarthy J."]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2400"]
[BlackElo "2520"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,90,8,-1,37,0,0,0,-6,-29,-6,-8,0,0,12,8,43,25,22,4,0,-18,-11,0,-10,-4,-6,-72,-72,-83,-90,-68,-75,-573,-554,-857,-845,-843,-800,-936,-850,-939,-879,-1157,-830,-1375,-1359,-1354,-1354,-1290,-1229,-1682,-1664,-1868,-1797,-1821,-1585,-1608,-1608,-1431,-1335,-1262,-1285,-1477,-1470,-1453,-1441,-1431,-1359,-2339,-1372,-1297,-1230,-29949,-6622,-29992,-6070]} 1. e4 c5 2. Nc3 d6 3. Nge2 Nf6 4. g3 Nc6 5. Bg2 g6 6. O-O Bg7 7. d3 Rb8 8. f4 O-O 9. h3 Nd4 {B25: Closed Sicilian: 3 g3, lines without early Be3.} 10. Be3 Ne8 11. g4 b5 {The position is equal.} 12. Qd2 b4 13. Nd1 {[#]} a5 $146 ({Predecessor:} 13... Nxe2+ 14. Qxe2 f5 15. gxf5 gxf5 16. c3 Nc7 17. exf5 Bxf5 18. Bd2 Qd7 19. Nf2 bxc3 20. Bxc3 {0-1 (51) Sevgi,V (2263)-Nigmatov,O (2315) Ulaanbaatar 2015}) 14. Ng3 a4 15. Rc1 a3 16. bxa3 bxa3 17. f5 Nc6 18. Bh6 Qa5 19. c3 Ne5 {Strongly threatening ...Ba6.} 20. Bxg7 Nxg7 21. Ne3 {[#]} (21. Bf3 $11) 21... Rb2 $1 $17 22. Rc2 Ba6 {Black is more active.} 23. Rxb2 axb2 24. Nd5 $2 {[%mdl 8192] White does not recover from this.} (24. Rb1 $17) 24... Rb8 $19 25. f6 exf6 26. Nxf6+ Kf8 {[%cal Bg8f8,Bf8e8,Be8d8,Bd8c7,Bc7b7,Bb7a8][%mdl 32]} 27. Nxh7+ Ke8 28. Nf6+ Kd8 29. Qh6 Ne6 30. Qh8+ Kc7 31. Nd5+ Kb7 32. Qf6 Bxd3 33. Qe7+ Ka8 34. Qxd6 Bxf1 35. Nxf1 {[#]} b1=Q $1 {[%cal Oa5a2]} 36. Qxe5 (36. a4 Nc4) 36... Rb2 37. Nde3 {[#]} Rxg2+ $1 38. Nxg2 Qaxa2 {Threatens to win with ...Qe2.} 39. Qh8+ Ka7 40. Qf6 Qxe4 {[%csl Ga2][%cal Re4g2]} 41. Nfe3 Qab1+ 42. Kh2 Qb8+ 43. Kg1 Qbb7 {( -> ...Qf3)} 44. h4 Qf3 45. Qe5 Qb8 {Weighted Error Value: White=1.13/Black=0.36} (45... Qb1+ $142 46. Nd1 Qfxd1+ 47. Qe1 Qxe1+ 48. Nxe1 Qxe1+ 49. Kg2 Qe3 50. Kh1 Qg3 51. g5 Nf4 52. c4 Qg2#) 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.5"]
[White "Sidhant, Mohapatra"]
[Black "Iniyan, P."]
[Result "1-0"]
[ECO "B59"]
[WhiteElo "2359"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,11,13,29,24,91,64,54,45,50,41,54,55,42,33,59,66,74,77,67,69,69,67,72,43,53,54,78,62,87,50,56,-16,-12,-33,-32,-34,385,377,758,758,751,735,768,767,759,743,1221,1182,1358,1348,1310,1314,1275,1254,1262,1223,1247,1237,29976,2110,29982,29982,29970,6187,6187,5422,29986,29987]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 {7.Nf3 might become the main line.} h6 {B59: Classical Sicilian: 6 Be2 e5 7 Nb3.} 8. O-O g5 {[#]} (8... Be7 $11) 9. Re1 $146 ({Predecessor:} 9. f3 Be6 10. Nd5 Rc8 11. c3 Rg8 12. Kh1 h5 13. Be3 g4 14. Nxf6+ Qxf6 15. fxg4 {0-1 (39) Lemos,J-De Carvalho,F Fortaleza 1951}) 9... Be6 {White is slightly better.} 10. Bf1 Bg7 11. Nb5 Bf8 12. c4 Rc8 13. a3 {[%cal Ba2a3,Ba3a4,Ba4a5][%mdl 32]} a6 14. Nc3 Ne7 15. Nd5 {[%cal Rd5f6]} Bg7 16. a4 O-O 17. a5 (17. Bd2 {keeps more tension.} Nc6 18. a5 Nd7 19. Be3 Ne7 20. Bd3) 17... Nfxd5 18. exd5 Bd7 19. Be3 Qe8 20. Qd2 f5 $1 21. Bb6 {White is more active.} Rf6 22. c5 ({Better is} 22. Qb4 $14) 22... Bb5 $1 $11 23. Bxb5 Qxb5 24. Nd4 Qc4 {[%mdl 8192] Black cannot hold the game after this.} (24... exd4 $15 25. Rxe7 dxc5) 25. cxd6 $1 $18 Nxd5 {[#]} (25... Rxd6 $2 26. Nxf5 $1 {[%mdl 512]} Nxf5 27. Rac1 $18) (25... Qxd5 26. dxe7 Re8) 26. Rac1 $1 Nxb6 27. Rxc4 ({Weaker is} 27. axb6 Rxd6 28. Rxc4 Rxc4 $16) 27... Nxc4 {[#]} 28. d7 $1 {[%mdl 512]} Rd8 29. Qc2 Nd6 {[#]} 30. Qc7 $1 Nf7 (30... Rxd7 31. Qxd7) 31. Rxe5 Rd6 32. Re8+ {[%cal Be5e8,Be8d8,Bd8f8][%mdl 32]} Kh7 33. Rxd8 Rxd4 34. Kf1 Be5 35. Qc8 {aiming for Rf8.} Nd6 36. Qc2 (36. Re8 $142 Bg7 {[#]} 37. d8=Q $1 {[%mdl 512]} Nxc8 38. Qxc8 Rd1+ 39. Ke2 Rd5 40. Re7 Re5+ 41. Rxe5) 36... Bf6 37. Rf8 Ne4 38. f3 (38. Qc7 $142 Rd1+ 39. Ke2 Rd2+ 40. Ke1 Bg7 41. d8=Q Rxd8 42. Rxd8 Nf6 43. Qxb7) 38... Kg7 39. d8=Q Nd2+ 40. Qxd2 {Weighted Error Value: White=0.14 (very precise) /Black=0.91} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.6"]
[White "Gusain, Himal"]
[Black "Fawzy, Adham"]
[Result "0-1"]
[ECO "D70"]
[WhiteElo "2408"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,82,25,12,25,8,8,10,43,60,48,47,32,27,72,71,68,66,59,42,39,40,39,46,47,37,125,145,147,181,143,145,130,98,69,33,35,-221,-233,-233,-226,-204,-222,-202,-195,-233,-233,-219,-209,-199,-196,-811,-783,-2184,-992,-29976,-29977,-29977,-29978,-29979,-29980,-29980,-29981,-29983,-29979,-29979,-29978]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Nbd2 O-O 7. O-O Nbd7 8. b3 b6 9. Bb2 Bb7 10. Qc2 e6 {A11: English Opening: 1...c6.} 11. e4 dxe4 12. Nxe4 {[%cal Bd2e4,Be4d6,Bd6b5,Bb5d4,Bd4e6][%mdl 32]} c5 {[#] The position is equal.} 13. Nd6 $146 ({Predecessor:} 13. Nxf6+ Qxf6 14. Ne5 Bxg2 15. Kxg2 Rfd8 16. Nf3 cxd4 17. Bxd4 Qe7 18. Bxg7 Kxg7 19. Rad1 {1-0 (64) Loginov,V (2478)-Unuk,L (2253) Skopje 2018}) 13... Bc6 14. Rad1 {[%cal Od4d5]} Qe7 15. Nb5 Rfc8 (15... cxd4 $11 {might be stronger.} 16. Qe2 (16. Nbxd4 Be4 $14) (16. Rxd4 a6 $11) (16. Nfxd4 Bxg2 17. Kxg2 a6 $11) 16... a6 17. Nbxd4 Be4) 16. Rfe1 $16 {[%cal Od4d5] Strongly threatening d5!} cxd4 17. Ba3 Nc5 18. Nbxd4 Bb7 19. b4 $36 {[%mdl 2048] White fights for an advantage.} Ncd7 20. Qb3 a6 {[%cal Ob6b5]} 21. Bb2 Rc7 ({Black should try} 21... h6 $14) 22. Ng5 $1 Bxg2 {[#]} 23. Ndxe6 $1 {[%mdl 512]} fxe6 24. Rxe6 Qf8 {[%cal Oa6a5]} 25. c5 {Threatens to win with Rxf6+.} Kh8 {[%cal Og2d5] Hoping for ...Bd5!} 26. cxb6 Nxb6 {[%cal Bd7b6,Bb6d5,Bd5f6][%mdl 32]} (26... Ng4 $2 27. Bxg7+ Qxg7 28. bxc7 $18) 27. Rxf6 $2 {[%mdl 8192] This costs White the game.} Bxf6 $19 28. Ne6 {[#]} Bd5 $1 29. Rxd5 {[#]} Nxd5 $1 30. Nxf8 Rxf8 31. Bxf6+ Nxf6 32. Qe6 Rc1+ 33. Kg2 Rc2 {[%cal Of6g4] aiming for ...Ng4!} 34. Kh3 {Inhibits Ng4.} (34. Qb3 Rd2 35. Qe3) 34... h5 35. f3 Kg7 (35... g5 $142 36. g4 {[#]} Nxg4 $1 {[%mdl 512]}) 36. g4 hxg4+ {Black mates.} 37. fxg4 Re8 38. Qxa6 g5 {[%cal Re8e3]} 39. Qa7+ Kg6 40. Kg3 Rd8 41. Qa6 Rcd2 {Weighted Error Value: White=0.61/Black=0.22 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.7"]
[White "Kaustuv, Kundu"]
[Black "Tahbaz, Arash"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2308"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,86,48,46,35,37,41,21,34,26,62,64,69,57,66,55,67,64,64,58,67,58,60,62,60,64,77,78,77,25,53,1,18,20,22,0,14,12,12,15,10,8,8,8,8,8,8,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,25,25,25,25,25,25,26,25,25]} 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. e4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. Be2 Bg7 9. Be3 O-O 10. Qd2 a5 {[%cal Ba7a5,Ba5a4][%mdl 32] B36: Sicilian: Maroczy Bind: Gurgenidze System.} 11. O-O a4 12. Bd4 $1 {[%mdl 4] is now more promising than 12.f3.} Qa5 $1 {[%cal Of6e4] The position is equal.} 13. Rad1 Be6 14. f4 $1 {[%cal Bf2f4,Bf4f5][%mdl 32]} Rfc8 15. b3 axb3 16. axb3 Qb4 $1 17. f5 Bd7 18. Bxf6 Bxf6 19. Nd5 Qxd2 $1 20. Nxf6+ exf6 21. Rxd2 Bc6 22. fxg6 {White is more active.} hxg6 23. Rxd6 (23. Rxf6 $16 Ra1+ 24. Kf2) 23... Ra2 $11 24. Bf3 ({White should play} 24. Rf2 $14) 24... Rb2 25. Rxf6 Rxb3 26. h4 {[#]} Rc3 $146 ({Predecessor:} 26... Rc7 27. h5 Kg7 28. Rf4 Rc3 29. hxg6 fxg6 30. e5 Bxf3 31. R1xf3 R3xc4 32. Rxc4 Rxc4 {½-½ (40) Galkin,A (2598)-Parligras,M (2626) Konya 2011}) 27. h5 {Threatens to win with Bg4.} Kg7 $1 28. Be2 Rc7 29. hxg6 fxg6 30. R6f3 Rc2 31. Bd3 Rd2 32. R1f2 Rd1+ 33. Rf1 Rxf1+ 34. Kxf1 {[%mdl 4096] Endgame KRB-KRB} Re7 35. Rf4 (35. Ke1 $5 {[%cal Re1d2]}) 35... g5 36. Rf5 Bxe4 37. Bxe4 Rxe4 38. Rxg5+ {KR-KR} Kf6 39. Rc5 Ke6 40. Rc7 {White has an edge.} Kd6 41. Rxb7 Rxc4 42. Rf7 Ke5 43. g3 Rc2 {Weighted Error Value: White=0.06 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.8"]
[White "Krishna C R G"]
[Black "Aradhya, Garg"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2466"]
[BlackElo "2236"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,107,0,4,0,8,-22,14,-13,16,16,19,30,62,33,112,77,77,74,77,58,117,96,224,223,222,224,238,185,185,185,185,186,251,222,214,187,187,147,138,150,123,135,131,126,142,132,136,141,162,104,111,90,90,90,90,90,135,117,116,110,144,141,150,150,150,150,750,783,797,754,739,191,191,191,191,106,699,562,29944,10512,8277,5003,2150,1744,29954,29953,12844,12384,1973,258,29966,29967,29975,29975,29979,29980,29959,1860]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. Nc3 e6 6. Qb3 Qb6 7. Bd2 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} Nbd7 {[#]} 8. O-O-O $146 ({Predecessor:} 8. cxd5 Qxb3 9. axb3 exd5 10. Bd3 Bd6 11. Nh4 O-O 12. f3 Be6 13. Nf5 Bb4 14. Na4 Bxf5 15. Bxf5 {½-½ (42) Ehlvest,J (2605)-Wojtkiewicz,A (2551) New York 2004}) 8... Rc8 9. h3 {The position is equal.} Bh5 10. g4 Bg6 11. Nh4 Qc7 12. cxd5 exd5 (12... cxd5 $14 13. Nxg6 hxg6) 13. Nxg6 hxg6 14. Bg2 $36 {[%mdl 2048] White is in control.} Be7 15. Kb1 Kf8 (15... Nb6 $14) 16. g5 $16 Ne4 (16... Ne8 $16) 17. Nxe4 $18 (17. Bxe4 $6 dxe4 18. Nxe4 Nb6 $16) 17... dxe4 {[#]} 18. h4 $1 ({But not} 18. Bxe4 $6 Bxg5 19. Qa3+ Kg8 $16) 18... Qb6 19. Qxb6 ({Don't do} 19. Bxe4 $6 Qxb3 20. axb3 Nb6) 19... Nxb6 20. Bxe4 Bd6 21. Bf3 f5 (21... Rd8 {was worth a try.} 22. Rc1 Kg8) 22. gxf6 gxf6 23. e4 Rc7 24. h5 gxh5 25. Rxh5 Rxh5 26. Bxh5 Rh7 {Inhibits Bh6+.} 27. Bg4 Rh4 28. f3 Nc4 29. Bc1 Kf7 {To avoid Be6+} 30. Bc8 (30. Kc2 $18) 30... Rh8 $16 31. b3 Na3+ 32. Bxa3 Bxa3 33. Bxb7 {[%mdl 4096] Endgame KRB-KRB} c5 ({Better is} 33... Rh2) 34. dxc5 Bxc5 35. Rd5 Bb6 36. a4 Rh3 37. Rf5 Kg6 38. Kc2 Rh5 $2 (38... Rg3 $16 39. Bc8 Rg5) 39. Rxh5 $18 Kxh5 {KB-KB} 40. Kc3 Kg5 41. Kc4 $2 (41. b4 Kf4 42. Kc4) 41... Kf4 42. Kb5 {Strongly threatening b4.} Ke5 43. Kc6 (43. b4 $18) 43... Bf2 $2 {[%mdl 8192] [#]} (43... Kf4 $16) 44. b4 $1 {[%cal Bb3b4,Bb4b5][%mdl 32] aiming for Bc8.} Bd4 45. Bc8 {Threatening mate with Bf5.} Bf2 46. Bg4 {Hoping for b5.} Be3 47. Bh3 Kf4 48. b5 Bb6 49. Kb7 {[%cal Oa4a5] a5! would kill now.} Ke5 50. a5 $2 (50. Ka6 {Black must now prevent Bg4.} Bd4 51. a5) 50... Be3 $2 (50... Bxa5 $18 51. Kxa7 Bd2) 51. Kc6 {White mates.} Kf4 52. Bg4 Bd2 53. b6 axb6 54. a6 {Weighted Error Value: White=0.33/Black=0.62} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.9"]
[White "Stany, G.A."]
[Black "Dhananjay S"]
[Result "1/2-1/2"]
[ECO "B56"]
[WhiteElo "2517"]
[BlackElo "2310"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,117,18,15,20,0,0,0,0,0,0,-9,0,-48,-42,-157,-147,-166,-167,-158,-148,-143,-173,-169,-126,-204,-131,-131,-108,-113,-124,-234,-98,-103,-98,-98,-98,-98,-98,-98,-98,-98,-98,-133,-133,-221,-226,-198,-145,-145,-145,-145,-140,-140,-98,-98,-99,-109,0,-36,0,-14,-14,-36,-10,-10,-10,-10,-10,-10,-10,-10,0,-10,-10,-10,0,-10,-10,-10,-10,-10,0,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,0,-28000]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. f3 e5 7. Nb3 Be6 8. Nd5 Be7 9. Be3 O-O $1 {[%mdl 4] is currently scoring better than 9...Bxd5.} 10. Qd2 a5 {B56: Classical Sicilian: Unusual Lines.} 11. c4 a4 12. Nc1 b5 13. cxb5 Bxd5 14. exd5 Nd4 {[#]} 15. Bc4 $146 (15. Bxd4 $11 exd4 16. Bc4 (16. Qxd4 Nd7 $15)) ({Predecessor:} 15. Bxd4 exd4 16. Bc4 Qc7 17. b3 axb3 18. Bxb3 Qc5 19. O-O Qxb5 20. Qxd4 Nd7 21. Rb1 {0-1 (44) Almagro Mazariegos,S (2268)-Merario Alarcon,A (2392) Linares 2019}) 15... Qc7 $36 {[%mdl 2048] Black fights for an advantage.} 16. b3 (16. Bd3 $1 $15) 16... axb3 $17 17. Bxb3 Nxb3 (17... Nxb5 18. Ne2 $11) 18. Nxb3 Qc4 {[%csl LRb5,LRd5]} 19. Na5 Qxb5 20. Nc6 Bd8 ({Black should try} 20... Nxd5 $19 21. Nxe7+ Nxe7) 21. Bg5 (21. Nxd8 $17 {was necessary.} Rfxd8 22. Kf2) 21... Ba5 (21... Nxd5 22. Nxd8 Ra3 23. Kf2 $17) 22. Nxa5 Rxa5 23. Bxf6 gxf6 24. Qh6 (24. Kf2 $17) 24... Qd3 (24... Qxd5 25. Qxf6 Qd3 26. Kf2 $15) (24... Rfa8 $19 {and Black stays clearly on top.} 25. Qd2 Qc4) 25. Kf2 Qc2+ ({But not} 25... Rxd5 $6 26. Qxf6 e4 27. Rhd1 Qc2+ 28. Kg3 Rxd1 29. Qg5+ Kh8 30. Qf6+ Kg8 31. Qg5+ Kh8 32. Qf6+ Kg8 $11) 26. Kg3 Qg6+ ({Much worse is} 26... Rxa2 27. Rxa2 Qxa2 28. Re1 $11) ({Reject} 26... Rxd5 $6 27. Qxf6 Ra8 28. a4 $11) 27. Qxg6+ hxg6 {[%mdl 4096] Endgame KRR-KRR} 28. a4 Rfa8 29. Rhb1 Rxd5 30. Rb6 Raa5 31. Rc1 (31. h4 $17 {might work better.}) 31... Rxa4 $19 32. Rcc6 f5 (32... e4 $19 {...Rg5+ is the strong threat.} 33. Rxd6 Rg5+ 34. Kh3 exf3 35. gxf3 Rh5+ 36. Kg2 Ra2+ 37. Kg3 Rg5+ 38. Kf4 Rf5+ 39. Kg3 Ra3) 33. Rxd6 $17 Rxd6 34. Rxd6 {KR-KR} Rd4 {To avoid Rd5} 35. Ra6 Rd2 (35... g5 $142 36. Ra2 Kg7) 36. h4 Kg7 37. Kh3 e4 (37... f4 $17 38. Kh2 Rd1) 38. Kg3 Rb2 39. Ra4 Re2 40. Ra6 exf3 41. gxf3 {The position is equal.} Re6 42. Ra7 Rb6 43. Rc7 Kf6 44. Ra7 $1 Ke6 45. Ra5 Rd6 46. Ra7 Rd7 47. Ra5 f6 48. Ra8 Kf7 49. Ra6 g5 50. hxg5 fxg5 51. Rb6 Re7 52. Ra6 Re6 53. Ra5 Kg6 54. Rb5 Ra6 55. Rc5 Ra3 {[#] White must now prevent ...g4.} 56. Kg2 Ra2+ 57. Kg3 f4+ 58. Kh3 Rf2 $2 {[%mdl 8192]} (58... Ra1 $11 59. Kg2 Ra3) 59. Rxg5+ {[%mdl 32768] Weighted Error Value: White=0.15 (very precise) /Black=0.13 (very precise) . An unexpected result.} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.10"]
[White "Mosadeghpour, Masoud"]
[Black "Aaryan Varshney"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2511"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,94,12,18,10,23,16,18,15,16,28,19,22,19,17,18,3,3,3,3,5,12,0,10,0,18,8,26,0,8,0,7,-27,-25,-22,-10,-8,-6,-5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Be6 10. Bxe6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} fxe6 11. Na4 {[#] Threatens to win with Ng5.} Ng4 12. Qd3 Nxe3 13. Qxe3 b5 14. Nb6 Ra7 {[#] ...Rb7 is the strong threat.} 15. Nd5 $1 Rb7 16. Nxe7+ Qxe7 17. Rad1 Nd7 18. Rd2 Rc8 19. Rfd1 Rc6 {[#]} 20. Ne1 $146 ({Predecessor:} 20. h4 Nf6 21. Rd3 h6 22. c3 Ne8 23. g3 Qf7 24. Nd2 a5 25. b3 Qh5 26. Nb1 {1-0 (45) Aldokhin,I (2376)-Kurukin,D (2417) Moscow 2012}) 20... Nf6 21. f3 h6 22. h3 Kh7 23. Nd3 a5 24. f4 Rc4 25. Nf2 exf4 {The position is equal.} 26. Qxf4 d5 {[%cal Rf6e4]} 27. b3 Rxe4 28. Nxe4 Nxe4 29. Rd4 e5 30. Rxe4 exf4 31. Rxe7 Rxe7 32. Rxd5 $11 {[%mdl 4096] Endgame KR-KR} Re1+ 33. Kf2 Ra1 34. Rxb5 Rxa2 35. Rc5 a4 36. bxa4 Rxa4 37. Rc7 Kg6 38. Kf3 Kf6 39. h4 g6 {[%cal Bg7g6,Bg6g5][%mdl 32]} 40. c4 g5 41. c5 Ra3+ 42. Kf2 Ra2+ 43. Kf3 Ra3+ 44. Kf2 Ra2+ 45. Kf3 Ra3+ 46. Ke4 Ra4+ 47. Kf3 Ke5 {A balanced but interesting game.  Weighted Error Value: White=0.04 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.11"]
[White "Mirzoev, Azer"]
[Black "Arpan, Das"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2468"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,93,7,19,13,33,31,32,24,26,25,33,10,20,17,41,50,49,46,73,81,103,102,104,103,112,105,100,94,150,146,141,141,149,142,137,121,167,146,150,136,162,158,182,96,283,272,303,293,307,293,321,350,321,283,280,275,397,390,390,381,370,345,330,271,230,192,327,315,449,397,459,458,29962,29963,29979,29980,29979,29980,29981,29981,29983,29984,29983,129]} 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. e3 d5 5. cxd5 exd5 6. Bb5+ Bd7 7. Bxd7+ {D30: Queen's Gambit Declined: Systems without Nc3.} Qxd7 8. O-O Nc6 9. b3 {White is slightly better.} cxd4 10. Nxd4 Bd6 {[#]} 11. Nxc6 $146 ({Predecessor:} 11. Nc3 Be5 12. Nce2 O-O 13. Bb2 Ne4 14. Rc1 Rfe8 {½-½ (14) Horvath,C (2546)-Stohl,I (2561) Rabac 2004}) 11... bxc6 12. Bb2 {To avoid Be5} Qf5 13. Nd2 {[%cal Oe3e4,Bb1d2,Bd2f1,Bf1g3,Bg3f5,Bf5d4][%mdl 32]} O-O 14. Rc1 Rac8 {[#]} 15. Qf3 $1 Qe6 16. Bxf6 gxf6 17. Rfd1 Rfd8 18. Nf1 c5 19. Ng3 Be5 (19... Bxg3 $142 20. Qxg3+ Kh8) 20. Nf5 $16 Kh8 21. g3 (21. Qg4 $6 Rg8 22. Qf3 Rg5 $14) 21... a5 22. Rc2 (22. Qg4 Rg8 23. Qf3 Rg5 $16) 22... c4 23. Kg2 $36 {[%mdl 2048] Black is under strong pressure.} (23. Qg4 Rg8 24. Qf3 a4 $16) 23... c3 (23... Rb8 $16) 24. Nd4 (24. Qg4 Rg8 25. Qf3 Rg5 $16) 24... Qb6 25. Rd3 Qb4 26. Qf5 a4 27. bxa4 (27. f4 $18 Bxd4 28. Rxd4) 27... Qxa4 $2 {Black cannot hold the game after this.} (27... Qb1 $16 {was worth a try.}) 28. Rcxc3 $18 ({Resist} 28. Rdxc3 $6 Rc4 29. Rc1 (29. Rxc4 dxc4 30. Nf3 Qc6 $16) 29... Qa6 $16) 28... Rxc3 29. Rxc3 Bxd4 30. Rc8 ({Less strong is} 30. exd4 Qxd4 31. Rf3 Qb6 $16) 30... Rxc8 31. Qxc8+ Kg7 {Threatens to win with ...Be5.} 32. Qg4+ {[%mdl 64] [#] Pin, Double Attack} ({Weaker is} 32. exd4 Qxd4 33. Qc2 Qa1 $11) 32... Kf8 {[%cal Oa4a2]} 33. Qxd4 Qxa2 (33... Qc6 $142 34. a4 Ke7) 34. Qxf6 {[%mdl 4096] Endgame KQ-KQ} Kg8 35. h4 {Strongly threatening h5.} Qc4 36. Qd4 Qc6 37. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} Qe6 38. Kg3 {Black must now prevent g5.} Qd6+ (38... h6 $142 39. h5 Qd6+ 40. Qf4 Qe6) 39. Qf4 Qc6 (39... Qe6 $142 40. Qb8+ Kg7) 40. g5 {aiming for h5.} Kf8 41. h5 {[%cal Bh4h5,Bh5g6][%mdl 32]} Qe6 (41... Qc1 $18 42. Qb8+ Ke7 43. Qe5+ Kf8 44. Qd6+ Ke8 45. Qxd5 Qg1+ 46. Qg2 Qb1 47. Qa8+ Kd7 48. Qd5+ Ke7) 42. Qf6 {White mates.} Qd7 43. g6 Qc7+ 44. Kg4 hxg6 45. hxg6 Qc4+ 46. Kg5 {[%csl Gg6][%cal Rf6f7]} d4 47. Qd8+ $2 {Weighted Error Value: White=0.05 (flawless) /Black=0.43} (47. Kh6 {mates} Qc7 48. Qg7+ Ke8 49. Qg8+ Ke7 50. Qxf7+ Kd8 51. Qxc7+ Kxc7 52. exd4) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.12"]
[White "Sai Agni Jeevitesh, J."]
[Black "Nigmatov, Ortik"]
[Result "0-1"]
[ECO "D96"]
[WhiteElo "2316"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,57,9,58,17,10,12,22,0,12,-23,-12,-1,-29,-56,-58,-59,-54,-57,-15,-31,-14,-90,-80,-299,-283,-304,-287,-257,-289,-638,-658,-638,-531,-665,-578,-798,-797,-732,-598,-1316,-1048,-29995,-29996,-29997,-29998,-29998,-29999,-29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 a6 (6... O-O $11 {is superior.}) 7. e4 {D96: Grünfeld: Russian System (5 Qb3): sidelines.} (7. Bf4 $1 $14) 7... b5 8. Qb3 c5 9. dxc5 {The position is equal.} Bb7 {[#]} 10. e5 $146 ({Predecessor:} 10. Be2 O-O 11. O-O Nbd7 12. Rd1 Qc7 13. Nd5 Bxd5 14. exd5 Nxc5 15. Qb4 Rfc8 16. Bf4 Qb7 17. Qd4 Nfd7 18. Qd2 Ne4 19. Qe3 {½-½ (67) Tin,J (2482)-Gareyev,T (2596) Krasnaya Polyana 2021}) 10... Nfd7 {[%csl LRc5,LRe5][%cal Bf6d7,Bd7c5,Bc5d3][%mdl 32]} 11. e6 Nxc5 12. exf7+ Kf8 13. Qb4 Nd3+ 14. Bxd3 Qxd3 (14... Bxf3 $15 15. Be2 (15. gxf3 Qxd3 16. Qe4 Qxe4+ 17. Nxe4 Nc6 $15) 15... Nc6) 15. Bg5 {[%csl Gg5][%cal Rb4e7]} Nc6 16. Qc5 (16. Qh4 $1 $11 {keeps the balance.}) 16... Rd8 $40 {[%mdl 128] ...b4 is the strong threat. Black is out for blood.} (16... Kxf7 $6 17. Rd1 Qf5 18. Qxf5+ gxf5 19. Rd7 $11) 17. a3 {Inhibits b4. White does not recover from this.} (17. Qe3 $17) 17... h6 $19 {Chess con chili.} ({Stronger than} 17... Kxf7 18. Qe3 $17) 18. Be3 Kxf7 19. Rc1 Rd6 20. h4 $2 (20. Ne2 Bxb2 21. O-O) 20... Rc8 21. Rh3 Kg8 {Threatens to win with ...Na5.} 22. Ne2 {[#]} Na7 $1 {[%mdl 512]} 23. Nf4 (23. Nd2 Rxc5) 23... Qb3 ({Not} 23... Rxc5 24. Nxd3 Rxc1+ 25. Nxc1 Bxb2 26. Bxh6 $17) 24. Nd2 Qxb2 ({Weaker is} 24... Rxc5 25. Nxb3 Rxc1+ 26. Nxc1 Bxb2 27. Ncd3 Bc3+ 28. Kf1 $15) 25. Nc4 bxc4 26. Qxa7 Bc3+ {This bishop pair is nice. Black mates.} 27. Kf1 {[#]} Qxc1+ $3 {[%mdl 512]} 28. Bxc1 Rd1+ 29. Ke2 Re1# {Weighted Error Value: White=1.14/Black=0.25 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.13"]
[White "Shyaamnikhil P"]
[Black "Mohota, Nisha"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2442"]
[BlackElo "2147"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,135,1,19,13,28,29,28,25,25,16,14,9,40,38,67,7,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-64,62,75,68,55,66,56,68,52,61,40,69,0,0,-3,28,25,104,117,110,106,119,152,197,200,183,154,141,147,150,150,219,220,177,160,149,73,82,40,495,491,504,400,398,398,393,387,400,399,476,413,481,503,450,420,602,532,531,529,527,518,851,826,727,710,859,818,6123,930,892,862,844,828,3710,2510,2737,1869,29968,29972,12796,12153,29969,29973,29973,29974,29976,29977,29976,29976,29970,12796]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. Nc3 Bd6 {[%cal Bf8d6,Bd6c5,Bc5a7][%mdl 32]} 6. d3 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} h6 7. a3 {[%cal Ba2a3,Ba3a4][%mdl 32]} b5 8. Bb3 {White has an edge.} Bc5 9. Nd5 d6 10. c3 Ba7 11. a4 Be6 {[#]} 12. Be3 $146 (12. Nxf6+ $1 $14 Qxf6 13. Bd5) ({Predecessor:} 12. O-O O-O 13. Be3 Nd7 14. axb5 axb5 15. d4 Bg4 16. Qd3 Bxf3 17. gxf3 Rb8 18. Kh1 Kh8 19. Rg1 {1-0 (24) Kosteniuk,A (2471)-Grigorieva,Y (2290) Moscow 2020}) 12... b4 13. Nxb4 Nxb4 14. cxb4 Bxe3 15. fxe3 Qb8 16. b5 Bxb3 17. Qxb3 axb5 18. a5 {To avoid Qb6} O-O 19. O-O Ra6 20. Nh4 $1 {[%cal Of1f6]} Qa7 {[%csl LRa5,LRe3]} 21. Rae1 {[%cal Of1f6] Rxf6! is the strong threat.} (21. Nf5 Rxa5 22. Rxa5 Qxa5 $15) 21... Rxa5 22. Qd1 {[%cal Of1f6]} Kh7 23. Nf5 ({White should play} 23. Rxf6 $11 gxf6 24. Qh5) 23... Ng8 (23... Ra6 $15) 24. Qg4 $14 {[%csl Gf5][%cal Rg4g7]} g6 25. Nh4 {[%cal Of1f7] Rxf7+! would kill now.} Ne7 26. Qd7 c5 27. Qxd6 $40 {[%mdl 128] White is up to no good.} c4 28. Qxe5 {Hoping for d4.} cxd3 29. Qc3 (29. Nf3 $14) 29... Ra4 $11 30. Qxd3 Qa8 31. Rf4 Ra1 (31... g5 $11 32. e5+ (32. b3 $2 Ra6 $19) 32... Kg8 33. Rxa4 bxa4) 32. Rxa1 $1 $16 Qxa1+ {[#]} 33. Rf1 $1 ({Much worse is} 33. Qf1 $6 Qa2 $11) 33... Qa4 (33... Qxb2 $2 34. Qd6 Qh8 35. Qxe7 $18) 34. Nf3 Kg8 (34... Qb4 $16 35. Nd4 Kg8) 35. Ne5 $18 Qb4 36. Qd7 {And now Qc7 would win.} Qc5 {[#] Inhibits Qc7.} 37. Qd4 {White is much more active. Black has bad knights.} Qxd4 38. exd4 $16 {[%mdl 4096] Endgame KRN-KRN} Kg7 {Inhibits Rf6.} (38... f5 $16 39. exf5 gxf5) 39. d5 $18 {Strongly threatening d6.} Nc8 40. Nc6 Nb6 41. d6 (41. Rd1 $142) 41... Nd7 42. Ra1 (42. Kf2 $16) 42... Re8 $2 {[%mdl 8192] Loses the game.} (42... Rc8 $14 43. Nd4 Re8) 43. Ra7 Nf8 44. d7 Nxd7 45. Rxd7 Rxe4 {KRN-KR} 46. Nd4 Kf6 47. Kf2 {Prevents Re1.} Ke5 48. Nf3+ Kf6 49. Rd4 Re6 50. b4 Rc6 (50... Ra6 $142 51. Rd5 Ke7 52. Rxb5 Ra2+ 53. Kg3 Ke6 54. Rb6+ Kf5) 51. Rd5 Rc2+ 52. Kg3 Rb2 53. Rxb5 h5 (53... Ke7 $142 54. Rb6 h5) 54. h4 Rb3 55. Kf4 Ke7 56. Rb7+ Kd6 57. Ne5 Rb1 58. Nxf7+ Kc6 59. Nd8+ Kd5 60. Kg5 Rb2 61. Kxg6 Rxg2+ 62. Kxh5 Rg8 63. Nf7 {Threatening mate with Kh6.} Kc6 64. Re7 {White mates.} Kb5 65. Re4 Rg7 66. Ng5 Rg8 67. Kh6 Rh8+ 68. Kg7 {Weighted Error Value: White=0.15 (very precise) /Black=0.40} (68. Kg6 $142 Ra8 69. h5 Rg8+ 70. Kf6 Rh8 71. Rh4 Rf8+ 72. Nf7 Rb8 73. h6) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.14"]
[White "Divya Deshmukh"]
[Black "Abdisalimov, Abdimalik"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2301"]
[BlackElo "2435"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,101,21,31,27,41,16,8,-14,-12,0,-27,-20,-25,-22,0,0,36,0,55,62,65,54,113,0,0,0,0,0,28,0,42,0,0,0,0,0,0,0,0,0,6,7,12,0,0,0,0,0,0,-111,-111,-104,-114,-111,-110,-116,-80,-82,-90,-79,-33,-28,-34,-32,-14,-14,-14,-14,-14,-14,-14,-17,0,-25,-25,-25,-25,-25,-25,-50,-50,-57,-25,-32,-14,-18,0,0,0,0,0,0,0,0]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 a6 5. Be3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 6. Be2 {B06: Modern Defence.} Bb7 7. O-O Nd7 8. Qd2 b4 9. Nd5 a5 10. a3 e6 $1 11. Nf4 {[#]} Ngf6 $146 ({Predecessor:} 11... Bxe4 12. axb4 axb4 13. Ng5 Qxg5 14. f3 Bxf3 15. Bxf3 Rxa1 16. Rxa1 Qb5 17. Ra8+ Ke7 {½-½ (52) Costa Trillo,V (2084)-Hauser,D (2251) ICCF email 2012}) 12. e5 dxe5 (12... Ne4 $5 {[%cal Re4d2]} 13. Qd3 bxa3 $14) 13. dxe5 ({Much weaker is} 13. Nxe5 Nxe5 14. dxe5 Qxd2 15. Bxd2 Ne4 $11) 13... Ne4 ({Black should play} 13... Ng4 $1 $11) 14. Qd3 $1 $14 c5 15. axb4 axb4 (15... cxb4 $14 16. Qd4 Bc6) 16. Rad1 ({Better is} 16. Qc4 $1 $16) 16... Qc7 17. Qb3 $1 {[%cal Of4e6]} Qc6 (17... Nxe5 18. Bb5+ Kf8 19. Nxe5 (19. Qxe6 Nxf3+ 20. gxf3 Ng5 $17) 19... Qxe5 20. Nd3 $16) 18. c3 Nxe5 19. cxb4 {Black must now prevent Nxe5.} c4 {[#]} (19... O-O $1 $11) 20. Qc2 (20. Nxe5 $1 $14 {is more appropriate.} cxb3 21. Nxc6 Bxc6 22. b5) 20... O-O $11 21. Nxe5 Bxe5 22. Qxc4 Qxc4 23. Bxc4 Bxb2 24. Nd3 Ba3 25. Nc5 Rfc8 {[#]} 26. Bxe6 $1 Rxc5 27. bxc5 {[%cal Oe6f7]} fxe6 28. Rd7 $1 Bd5 {This bishop pair is nice.} 29. Rc7 {[#]} (29. Ra1 $11 {keeps the balance.}) 29... Bb2 $1 $17 30. f3 Nf6 31. c6 Be5 32. Re7 Kf8 ({Resist} 32... Bxc6 33. Rxe6 Bb5 34. Rxe5 $16) 33. Ra7 Rxa7 34. Bxa7 Bxc6 ({Black should try} 34... Ke7 $17 35. Rc1 Kd8) 35. Re1 $15 Nd7 36. f4 $1 Bxf4 37. Rf1 $1 g5 {...Kg7 is the strong threat.} 38. g3 {[%mdl 64] [#] Pin} e5 $1 39. gxf4 (39. Kf2 Ke7) 39... gxf4 $11 {[%mdl 4096] Endgame KRB-KBN} 40. Be3 Nf6 41. Bxf4 exf4 42. Rxf4 Kf7 43. Kf2 Kg6 44. Rb4 Kg5 45. Rc4 Be4 46. Ke3 Kf5 {And now ...Ng4+ would win.} 47. Rc5+ {The position is equal.} Nd5+ 48. Kd4 Kf4 {Strongly threatening ...Ne3.} 49. Rxd5 Bxd5 50. Kxd5 h5 51. h4 {Weighted Error Value: White=0.13 (very precise) /Black=0.11 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.15"]
[White "Nitin, S.."]
[Black "Bristy Mukherjee"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2427"]
[BlackElo "1856"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,133,54,65,70,51,84,108,131,133,122,118,122,62,83,63,64,39,66,42,47,48,72,74,77,71,102,83,130,130,121,128,123,126,139,96,99,59,59,71,54,51,56,56,66,65,77,62,63,63,62,48,75,62,106,100,108,107,111,78,230,229,235,119,110,112,114,79,153,157,203,181,175,156,215,220,219,193,195,183,286,295,273,168,154,148,176,161,291,276,293,283,382,378,427,407,427,416,417,320,361,351,496,425,496,0,495,392,351,0,443,401,658,652,644,631,998,962,1047,1016,1147,1096,29983,29984]} 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5 5. Bd2 Qxc5 6. Nd5 Na6 7. Nf3 {Black must now prevent Rb1.} e6 $1 {B06: Modern Defence.} 8. Bc3 Bxc3+ 9. Nxc3 Nf6 {White is better.} 10. e5 Ng4 {[%csl Gg4][%cal Rc5f2]} 11. Qe2 {[#]} f6 $146 {[%cal Rg4e5] [#]} ({Predecessor:} 11... d6 12. O-O-O Nxf2 13. Na4 Qa5 14. Qxf2 Qxa4 15. exd6 O-O 16. Kb1 Bd7 17. Ne5 Rad8 {½-½ (38) Oleksienko,M (2497)-Shkuran,D (2405) Ternopol 2003}) 12. exf6 (12. Ne4 $1 $16 {[%cal Re4c5]} Qa5+ 13. c3) 12... Nxf6 13. O-O-O Nc7 14. Ne5 O-O {[%cal Ob7b5]} 15. f4 Ncd5 16. Nxd5 Nxd5 17. g3 d6 18. Nd3 Qe3+ 19. Qd2 Bd7 (19... a5 $142) 20. Bg2 $16 Bc6 21. Rhe1 Qxd2+ 22. Rxd2 Nc7 23. Bh3 (23. Bxc6 $142 bxc6 24. Nf2) 23... Rfe8 24. Bg4 a5 25. h4 h5 26. Bh3 {[%cal Bg4h3,Bh3f1,Bf1d3][%mdl 32]} Kf7 27. Nf2 {[%cal Bd3f2,Bf2h3,Bh3g5][%mdl 32]} Rad8 28. Bf1 Bd5 29. Nh3 b5 30. Ng5+ Kf6 31. Bd3 Re7 32. Be4 Red7 (32... Ree8 $14 {was preferrable.}) 33. Bxd5 exd5 34. Rde2 {Prevents Re7. White is much more active.} Rg8 35. Kd2 Rgg7 $2 {[#]} (35... b4 $16) 36. f5 $1 $18 Rge7 37. fxg6 (37. Rxe7 $18 Rxe7 38. Rxe7 Kxe7 39. fxg6) 37... Rxe2+ $16 38. Rxe2 Kxg6 $18 {[%mdl 4096] Endgame KRN-KRN} 39. Rf2 Ne8 ({Black should try} 39... Rg7) 40. Ne6 $16 {Threatens to win with Nf8+.} Rf7 (40... Re7 $16) 41. Nf4+ Kh7 42. Kd3 Rf5 (42... Ng7 $16 43. Rg2 b4 44. Nxd5 Rf1) 43. Re2 $18 Nf6 44. Re7+ Kg8 45. Kd4 Ne4 (45... Kf8 {was worth a try.} 46. Rb7 Ne4) 46. Nxd5 Nd2 47. Nf4 Nf1 48. Ne2 Kf8 49. Re6 {And now Ke4 would win.} Rf2 (49... Kf7 {was called for.} 50. Re4 (50. Rxd6 Rf2 $14) 50... Kf6) 50. Kd5 Kf7 {[%cal Of1g3]} 51. Kxd6 Nd2 52. b3 {Inhibits Nc4+.} a4 53. Nd4 axb3 54. axb3 Nf1 55. Ne2 Rf3 56. Re5 {[%csl LRb5,LRh5]} Rf2 (56... Ne3 {might work better.} 57. Rxh5 Nxc2 58. Rxb5 Rd3+ 59. Kc5 Re3) 57. Re4 Kg6 58. Re5 $2 (58. c4 $18) 58... Kf6 $2 {[%mdl 8192]} (58... Kf7 $11 59. c4 bxc4 60. bxc4 Rf3) 59. Re8 {Strongly threatening Rf8+.} Kf7 {To avoid Rf8+} 60. Re4 Kg6 $1 61. Kc5 Nd2 (61... Rf5+ $142 62. Kb4 Nd2) 62. Nf4+ Kf5 63. Re2 Ne4+ 64. Kd4 Rxe2 65. Nxe2 Nd6 66. Kd5 Ne4 67. Nd4+ {Weighted Error Value: White=0.30/Black=0.37} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.16"]
[White "Vaibhav Jayant Raut"]
[Black "Gholami Orimi, Mahdi"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2198"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,35,39,0,0,0,0,0,0,-50,-50,-50,-48,-57,-34,-33,-20,-27,-16,-104,-100,-94,-78,-179,-169,-179,-181,-188,-179,-194,-174,-187,-186,-208,-202,-219,-212,-253,-195,-296,-289,-301,-293,-295,-296,-335,-344,-402,-387,-435,-443,-439,-425,-437,-422,-429,-437,-458,-439,-470,-445]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 a6 5. a4 Bg4 6. Bc4 {[%cal Oc4f7] B06: Modern Defence.} e6 $1 7. Be3 Nc6 8. d5 {The position is equal.} Ne5 9. dxe6 fxe6 $15 10. Be2 Bxf3 11. gxf3 {[%cal Bg2f3,Bf3f4][%mdl 32] [#]} Qf6 $146 ({Predecessor:} 11... Nf6 12. f4 Nc6 13. f5 Qd7 14. fxe6 Qxe6 15. Nd5 O-O-O 16. Nxf6 Qxf6 17. Qd5 Nd4 {0-1 (37) Jovanovic,S (2290)-Indjic,A (2430) Belgrade 2012}) 12. h4 Ne7 {Pair of Knights!} 13. f4 $1 N5c6 {[%cal Be5c6,Bc6b4,Bb4d3][%mdl 32]} 14. e5 (14. Bc4 $1 $11) 14... dxe5 $17 {Black keeps a firm grip on the game.} 15. Ne4 Qf5 16. Bd3 {[#]} (16. Nc5 $17 Rd8 17. Bd3) 16... O-O-O $1 $19 17. Nc5 e4 18. Nxe4 Nb4 (18... Bxb2 19. Rb1 Bd4 20. Qe2 (20. Nd6+ Rxd6 21. Bxf5 Bc3+ 22. Ke2 Rxd1 $17) 20... Bxe3 21. fxe3 (21. Nd6+ Rxd6 22. Bxf5 Bd2+ 23. Qxd2 Rxd2 $17) 21... Qa5+ 22. Qd2 $17) 19. Qe2 {[%cal Oe4d6] Hoping for Nd6+!} Nxd3+ (19... Bxb2 20. Nd6+ Rxd6 21. Bxf5 Bxa1 22. Be4 $14) 20. cxd3 Nc6 $36 {[%mdl 2048] Black is in control.} 21. Rc1 Nd4 22. Bxd4 Rxd4 23. Nc5 Re8 ({Not} 23... Rxf4 24. Qxe6+ (24. Nxe6 $2 Re8 $19) 24... Kb8 25. Qxf5 gxf5 26. Rc2 $17) (23... Qxf4 $2 24. Qe3 $17) 24. Qf3 (24. h5 $142) 24... Rd5 ({Inferior is} 24... Qxf4 25. Qxb7+ Kd8 26. Rc2 $14) 25. Ne4 Red8 26. Rd1 Bxb2 {[%cal Ob2e5]} 27. O-O {[#]} Be5 $1 {[%mdl 512]} 28. Rfe1 (28. Kg2 Bxf4) 28... Bxf4 29. Re2 {[#]} Bh2+ $1 {[%mdl 512] Black is clearly winning.} 30. Kg2 Qxf3+ 31. Kxf3 Rxd3+ 32. Rxd3 Rxd3+ 33. Kg2 Bd6 34. Ng5 Rd4 {[%csl LRa4,LRh4] Weighted Error Value: White=0.28 (precise) /Black=0.05 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.17"]
[White "Saptarshi, Roy"]
[Black "Mrinmoy Rajkhowa"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2402"]
[BlackElo "1634"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,0,0,-2,0,0,0,-13,0,0,0,0,5,16,33,33,75,59,70,78,38,36,107,42,41,31,31,30,33,24,28,37,47,8,8,8,8,8,77,0,0,0,0,0,0,0,8,-47,0,0,50,45,68,60,66,59,62,70,104,106,113,111,111,111,112,113,202,202,202,202,202,202,205,205,208,191,385,209,209,137,209,209,1637,941,1869,520,2322,299,1847,299,1987,209,2481,1550,6087,785,29964,992,29982,29978,29978,29979,29989,29990,29993,29994,29995,29996,29996,29997,29998,29999]} 1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2 Nf6 6. b3 {B23: Closed Sicilian: Lines without g3.} a6 7. Bb2 e6 8. O-O-O {The position is equal.} Be7 9. f3 b5 10. h4 O-O 11. g4 {[#]} b4 $146 ({Predecessor:} 11... Bb7 12. Kb1 Rc8 13. h5 h6 14. g5 Nh7 15. gxh6 Bg5 16. f4 Bxh6 17. Qf2 Qe7 {1-0 (69) Alonso Canete,R (1631)-Garcia Tenreiro,M Lichess.org INT 2021}) 12. Na4 Qa5 (12... e5 $14) 13. Kb1 $16 Nd7 14. g5 Nc5 15. Nxc5 dxc5 (15... Qxc5 $14 16. f4 Na7) 16. Bc4 (16. f4 $16) 16... Rd8 $14 17. Qc1 Rxd1 18. Qxd1 Qd8 19. Ne2 Qxd1+ 20. Rxd1 Na5 21. Nf4 Nxc4 22. bxc4 a5 $1 23. Nh5 Bf8 {[#]} (23... Ba6 $11) 24. Rd8 {White is much more active.} (24. Bxg7 $1 $16 Bxg7 25. Rd8+ Bf8 26. Nf6+ Kg7 27. Ne8+ Kg6 28. Nc7) 24... Bb7 $11 25. Rxa8 Bxa8 {[%mdl 4096] Endgame KBB-KBN} 26. Kc1 Bc6 27. Kd2 Be8 {[%cal Oe6e5]} 28. Bf6 Bc6 (28... a4 $1 $15) 29. Be5 Be8 (29... a4 $11) 30. Nf4 $14 Bc6 31. Nd3 Bb7 32. Bc7 Ba6 33. Nb2 a4 {[#] White must now prevent ...a3. White leaves nothing to chance now.} 34. Kd3 $1 a3 {[#]} 35. Na4 f6 36. gxf6 gxf6 37. Bb6 Bb7 (37... Bd6 $16 {might work better.}) 38. Bxc5 $18 ({Resist} 38. Nxc5 $6 Bc8 39. Nb3 Kf7 $16) 38... Bc6 39. Bxf8 Bxa4 40. Bxb4 {KB-KB} Kf7 41. Bxa3 Ke8 42. Bb2 f5 (42... Ke7 43. f4 Be8) 43. f4 (43. exf5 $142 exf5 44. h5) 43... Kd7 44. Ba3 h5 (44... fxe4+ $16 45. Kd2 (45. Kxe4 Bxc2+ 46. Kd4 Bb1 $16) 45... Kc6) 45. Bb4 Kc6 $2 (45... Bc6 46. e5 Ba4) 46. c3 {aiming for exf5.} Bd1 47. Kd4 (47. exf5 $142 {White wants to mate with f6.} exf5 48. Kd4) 47... Bf3 (47... fxe4 $142 48. Kxe4 Be2) 48. a4 $2 (48. exf5 {Intending f6 and mate.} exf5 49. Ke5) 48... Kd7 $2 (48... Bxe4 49. a5 Kd7) 49. Kc5 $2 (49. exf5 exf5 50. Ke5) 49... Be2 $2 (49... Bxe4 50. Kb6 Bf3) 50. a5 $2 (50. exf5 {And now f6 would win.} exf5 51. a5) 50... Kc7 $2 (50... Bf3 51. e5 Kc7) 51. a6 Kb8 52. Ba5 {Threatening mate with exf5.} Ka7 53. Kb5 (53. exf5 $142 exf5 54. Kb5 Bd3 55. Bb6+ Ka8 56. Kc5 Bf1 57. Kd5 Bh3 58. Ke5) 53... Bf3 54. Bb6+ {White mates.} Kb8 55. c5 {[%cal Bc4c5,Bc5c6,Bc6c7][%mdl 32]} Be2+ 56. c4 Kc8 57. c6 Kb8 58. a7+ Ka8 59. c7 {[%cal Rc7c8]} Kb7 60. a8=Q+ {Weighted Error Value: White=0.80/Black=0.23 (precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.18"]
[White "Singh, Soram Rahul"]
[Black "Visakh N R"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2006"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,28,46,56,45,43,64,52,51,55,55,43,77,77,77,34,66,7,73,44,56,25,34,-34,0,0,0,0,0,0,0,0,0,-26,-26,-58,-35,-172,-168,-145,-172,-289,-297,-271,-279,-502,-489,-1086,-1061,-5377,-5189,-1440,-1289]} 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Qa4+ Nc6 5. e3 Nge7 {[%cal Oe6e5]} 6. Nf3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} O-O 7. Bd2 {[#]} Nf5 $146 ({Predecessor:} 7... a5 8. a3 Bxc3 9. Bxc3 b6 10. cxd5 exd5 11. Be2 Ba6 12. Bxa6 Rxa6 13. O-O Ra7 {1-0 (60) Sadzikowski,D (2582)-Jobava,B (2669) Gallipoli 2018}) 8. Bd3 {White is slightly better.} a5 {[%cal Oe6e5]} 9. a3 Bxc3 10. Bxc3 Nd6 11. Qc2 f5 12. Nd2 ({White should play} 12. cxd5 $16 exd5 13. O-O) 12... a4 13. O-O-O (13. O-O $14) 13... Na5 (13... b6 $11 {remains equal.}) 14. cxd5 (14. Qxa4 Bd7 15. Qb4 Naxc4 $11) (14. c5 $5 {[%cal Rc5d6]} Ne4 15. Bxa5 (15. Nxe4 Nb3+ 16. Kb1 fxe4 $11) (15. Bxe4 fxe4 16. Bxa5 Rxa5 $11) 15... Rxa5 16. Nf3 $14) 14... exd5 15. Bb4 Rf6 16. Bxd6 (16. Nf3 $14) 16... Rxd6 17. Kb1 (17. Bxf5 $2 Rc6 18. Bxh7+ Kh8 $19) (17. Qxa4 $2 Bd7 18. Bb5 Nc4 19. Bxd7 Rxa4 20. Bxa4 Rb6 21. Nxc4 dxc4 $19) 17... Rc6 18. Qxa4 Be6 $1 {aiming for ...Nc4.} 19. Qb4 Nc4 20. Bxc4 (20. Qxb7 $2 Rb6 21. Qxb6 cxb6 $19) 20... dxc4 21. Qc3 (21. Qxb7 $2 Rb6 22. Qxb6 (22. Qf3 $2 Rxa3 23. Kc2 Ra2 $19) 22... cxb6 $19) 21... b5 {[%mdl 1024] Black has compensation.} 22. Rc1 Rd6 {[%cal Oc7c5,Bc6d6,Bd6d4,Bd4d3,Bd3b3][%mdl 32]} 23. h4 {[#] Loses the game.} (23. Qb4 $15) 23... c5 $1 $19 24. h5 (24. Nf3 $2 b4 25. axb4 cxb4 26. Qxb4 Rb6 $19) 24... Rb8 {White must now prevent ...b4.} ({Inferior is} 24... cxd4 25. exd4 Rxd4 26. h6 $15) 25. b4 ({Don't blunder} 25. Nf3 $2 b4 26. axb4 cxb4 $19) (25. Qc2 $142) 25... cxd4 26. exd4 Rxd4 27. h6 $2 {[#]} (27. Rc2 {was forced.}) 27... Rb7 $1 {Black is clearly winning.} 28. Nf3 (28. Rcd1 $142 Rd3 29. Qc2) 28... Rd3 29. Qe5 Rb3+ 30. Ka2 {[#]} Qa8 $1 {[%csl LRa3,LRb4] Weighted Error Value: White=0.85/Black=0.09 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.19"]
[White "Karthik Venkataraman"]
[Black "Borgaonkar Akshay"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2485"]
[BlackElo "1985"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,84,33,38,39,50,47,42,34,101,39,79,72,108,86,93,86,110,85,95,96,143,136,201,207,212,190,371,189,189,183,179,180,189,189,189,189,189,168,213,168,189,189,189,189,189,189,189,168,419,369,467,448,598,588,521,357,363,310,479,481,482,482,896,987,941,907,826,846,29983,29978,29989,29990,29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 e5 7. d5 a5 8. g4 {E71: King's Indian: 4 e4 d6 5 h3.} Na6 9. Qd2 Nc5 10. f3 {White is slightly better.} a4 (10... c6 $1 $14) 11. h4 (11. O-O-O $1 $16) 11... h5 {[#]} 12. g5 $146 ({Predecessor:} 12. Bg5 Bd7 13. gxh5 gxh5 14. Nge2 Kh7 15. Ng3 Qe8 16. Bh3 Bxh3 17. Rxh3 Ng8 18. Nf5 {0-1 (37) Begovic,I (1998)-Jovanovic,S (2297) Belgrade 2003}) 12... Ne8 13. O-O-O Bd7 14. Kb1 Ra6 15. Nh3 Qa8 16. Nb5 (16. Qe1 {feels hotter.} Qa7 17. Nf2 Qb6 18. Nb5 Qa5 19. Bh3) 16... b6 ({Black should try} 16... c6) 17. Nf2 $16 {White is more active.} Bxb5 (17... Ra5 $16 18. Qe2 Qd8) 18. cxb5 $18 Ra7 19. Qc2 f5 $2 (19... f6 20. Be2 fxg5) 20. gxf6 (20. exf5 $142 a3 21. b3 (21. fxg6 axb2 22. Bc4 Ra3 $16)) 20... Nxf6 21. Be2 Qe8 22. Rdg1 {Threatens to win with Rg2.} Nfd7 23. Rg2 {And now Rhg1 would win.} Rf6 24. Rhg1 Nf8 25. Qd2 Ra5 (25... Qd7 $142 26. Nd3 Nxd3 27. Qxd3 Rf7) 26. Qb4 Nh7 27. Nh3 Nf8 28. Qc4 Kh8 29. Bd2 Ra8 30. Kc2 Nh7 $2 (30... Qd7) 31. f4 exf4 32. Nxf4 Qe5 33. Nxg6+ Rxg6 34. Rxg6 Qxb2+ 35. Kd1 Bd4 (35... Be5 {might work better.} 36. Bxh5 Bd4) 36. Bc1 Qa1 {[#]} 37. Kc2 $1 ({Not} 37. R1g2 Be3 $18) 37... Nb3 (37... a3 $142 38. Bxa3 (38. Bxh5 $2 Bxg1 39. Rxg1 Nf6 $19) 38... Bxg1 39. Bb2+ Qxb2+ 40. Kxb2 Ra4) 38. axb3 axb3+ 39. Qxb3 {Hoping for Bb2.} Ra2+ 40. Kd3 {[%csl Gg1][%cal Rg6g8]} Nf6 {[#] To avoid Rg8+} 41. Bg5 $1 {[%mdl 512] White mates.} Nxe4 {[#]} (41... Qxg1 42. Bxf6+) 42. Bf6+ $1 Bxf6 (42... Nxf6 43. Rh6+) 43. Rh6# {White took control after the opening.  Weighted Error Value: White=0.14 (very precise) /Black=0.58} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "7.20"]
[White "Thapa, Krishna"]
[Black "Raahul V S"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1979"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,123,20,27,34,39,43,0,0,0,0,0,29,-31,62,0,4,-34,-21,-71,-57,-72,-79,-152,-156,-240,-66,-65,-60,-52,-56,-76,-61,-89,-83,-86,0,0,0,0,0,0,0,0,64,9,14,0,12,0,312,312,276,312,270,286,266,272,258,161,209,58,64,10,10,10,10,0,14,10,10,10,19,19,19,19,47,47,47,47,47,47,47,47,47,47,47,47,47,0,47,47,148,148,178,178,178,178,226,226,229,0,148,148,226,226,229,0,47,0,233,0]} 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. c4 c6 5. Bg2 Bd6 6. Nc3 O-O 7. O-O Nbd7 8. Qd3 b6 {E01: Catalan: Early deviations.} 9. e4 Ba6 10. b3 (10. e5 $14 Bxc4 11. Qd1) 10... dxc4 $11 {The position is equal.} 11. bxc4 e5 {[#]} 12. Rd1 $146 ({Predecessor:} 12. Ne2 exd4 13. Nfxd4 Ne5 14. Qc2 Bxc4 15. Rd1 Bc5 16. Bb2 Qc8 17. f4 Nfg4 18. Rd2 {0-1 (29) Dai,C (2503)-Huang,R (2422) Shaoxing 2021}) 12... Qe7 13. d5 (13. Na4 $11) 13... Rac8 (13... Nc5 $15 14. Qe2 cxd5 15. exd5 Rae8) 14. Bg5 (14. Nh4 $1 $14 Rfd8 15. Nf5) 14... h6 $1 15. dxc6 Rxc6 16. Bxf6 (16. Nb5 $11 Bb4 17. Bxf6 Nxf6 18. Rab1) 16... Nxf6 $17 17. Nb5 {[%cal Rb5d6]} Bc5 18. Nh4 (18. Bh3 $142) 18... Ng4 19. Rd2 (19. Nf5 $17 {keeps fighting.} Qe6 20. Rf1) 19... Qf6 $2 (19... Nxf2 $19 20. Rxf2 Rd8) 20. Rf1 $1 $15 Bxb5 21. cxb5 Rd6 22. Qc2 Rfd8 23. Rxd6 Qxd6 24. Nf3 {[%cal Bh4f3,Bf3e5,Be5c6][%mdl 32]} Qg6 (24... Rc8 $17 {...Bxf2+ is the strong threat.} 25. Qe2 Nxf2 26. Rxf2 Bxf2+ 27. Qxf2 Qd1+ 28. Bf1 Rc2) 25. Bh3 $11 h5 26. Bxg4 hxg4 27. Nxe5 Qe6 28. Nc6 Rd7 (28... Re8 $11) 29. e5 (29. a4 $14) 29... g6 30. Rd1 Qf5 31. Rc1 Rd3 $2 {[%mdl 8192] [#]} (31... Qg5 $11 32. Rf1 Qf5) 32. Qxc5 $3 $18 {[%mdl 512]} bxc5 33. Ne7+ Kf8 34. Nxf5 gxf5 35. Rxc5 {[%mdl 4096] Endgame Threatens to win with a4. KR-KR} Ra3 36. Rc2 {Black must now prevent Rc8+.} Ke7 (36... Ra5 $142 37. Rb2 Ke7) 37. Rb2 $2 ({White should try} 37. h4 $18 gxh3 38. Kh2) 37... Ke6 $14 38. b6 ({Better is} 38. Re2 $1 $14) 38... axb6 $11 39. Rxb6+ Kxe5 40. Rb5+ Ke4 41. Rb4+ Ke5 42. Rb2 f4 43. Rb5+ Ke6 44. gxf4 Rxa2 45. Re5+ Kf6 46. Rg5 Ra4 47. Rxg4 Kf5 {[%csl LRf4,LRg4]} 48. h3 f6 49. Kg2 Ra3 50. Rg3 Ra7 51. Rg4 Ra3 $1 52. Rh4 Ra6 (52... Rb3 $14) 53. Kg3 $1 $16 Ra3+ 54. f3 Kg6 55. Rg4+ Kf5 (55... Kf7 $142 56. f5 Ke7 57. Re4+ Kf8) 56. h4 $1 $18 Ra1 57. Kh3 $2 (57. h5 $18) 57... Rb1 {[#]} (57... Ra3 $11 {remains equal.}) 58. Kg2 $1 $16 Rb2+ {[#]} (58... Ke6 $16 59. h5 Kf5) 59. Kg3 $1 $18 Rb1 60. Kh2 {Prevents Rg1.} (60. h5 $18) 60... Rb2+ (60... Rb3 $11) 61. Kg3 $2 (61. Rg2 $14 Rb3 62. Kg3) 61... Rb1 $1 62. Kh2 $2 {Both players deserved the win here.  Weighted Error Value: White=0.27 (precise) /Black=0.37} (62. h5 $18) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.1"]
[White "Delgado Ramirez, Neuris"]
[Black "Das, Sayantan"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2615"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,61,21,16,27,8,10,-30,-27,-33,-35,-21,-37,-25,-48,-25,-31,-27,-26,-52,-4,-22,-14,-55,-6,-2,-8,-8,1,3,16,15,14,14,15,0,3,3,4,4,5,0,0,0,0,0,0,0,0,-17]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Nxc6 bxc6 8. Bd3 Bd6 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5.} 9. Qe2 e5 {The modern move.} 10. f4 {Hoping for fxe5.} Nf6 {next ...Bg4 is good for Black. Black has an edge.} 11. fxe5 Bxe5 {...Bg4 is the strong threat.} 12. Nf3 Bg4 $1 {Threatens to win with ...0-0.} ({Don't do} 12... dxe4 13. Bxe4 Qe7 14. Bd3 $14 (14. Nxe5 Qxe5 15. Bf3 Qxe2+ 16. Bxe2 O-O $14)) 13. exd5 {[#]} O-O $1 {White must now prevent ...Re8.} 14. O-O {[#]} ({But not} 14. Qxe5 Re8 15. O-O (15. Bxh7+ $2 Kxh7 16. O-O Rxe5 $19) 15... Rxe5 16. Nxe5 Qxd5 $17) 14... Bd4+ 15. Kh1 $1 {[#]} Qxd5 $146 ({Predecessor:} 15... Re8 16. Qd2 Bxf3 17. gxf3 Qxd5 18. Qg2 Re6 19. c3 Bb6 20. Bc2 Qb5 21. c4 {½-½ (21) Alsina Leal,D (2500)-Le Goff,D (2294) Cattolica 2021}) 16. Qd2 Bb6 (16... Bxf3 $15 17. gxf3 Rfe8) 17. Qg5 Rfe8 18. Qxd5 (18. b3 $11 {might be stronger.}) 18... Nxd5 (18... cxd5 $15 19. Bb5 Bd7 20. Bxd7 Nxd7) 19. Bd2 $11 {The position is equal.} Ne3 20. Rfe1 Bh5 21. h3 {Inhibits Ng4.} Bg6 22. Bxg6 hxg6 23. Bxe3 Bxe3 24. Rad1 Bf2 25. Rxe8+ Rxe8 {[%mdl 4096] Endgame KRB-KRN} 26. g4 Bb6 27. Rd2 f6 28. Kg2 g5 29. c3 Kf7 30. Rd7+ Kg6 {And now ...Re2+ would win.} 31. Rd2 {[%mdl 32768] To avoid Re2+.  Weighted Error Value: White=0.06 (flawless) /Black=0.06 (flawless) . Loss on time!?} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.2"]
[White "Fawzy, Adham"]
[Black "Ponkratov, Pavel"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "2476"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,60,0,0,0,0,0,0,0,7,-35,-62,-57,-49,-70,-37,-25,-30,-27,-23,-22,0,0,-10,0,0,0,0,0,0,0,80,72,58,-5,-5,-5,-5,-5,-5,-5,30,-5,-3,-5,-5,-10,-10]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Qb3 Bg7 7. cxd5 O-O 8. g3 e6 {[%cal Rf6d5]} 9. Bg5 {B14: Caro-Kann: Panov-Botvinnik Attack with 5...e6 and 5...g6.} exd5 10. Bg2 Re8+ 11. Nge2 Bg4 {[#]} 12. f3 $146 (12. Qxb7 $11 {should be considered.} Nbd7 13. Qa6 (13. Bxd5 $2 Rb8 $19)) ({Predecessor:} 12. Bxd5 Rxe2+ 13. Kf1 Nc6 14. Bxc6 bxc6 15. Nxe2 Rb8 16. Bxf6 Bxf6 17. Qc2 Qd5 18. Kg1 {1-0 (28) Ancuta,A (1941)-Grabianowski,K (1879) Poznan 2012}) 12... Bf5 $15 13. O-O $1 Nc6 14. Qxb7 Na5 15. Bxf6 Qxf6 16. Qxd5 Qa6 17. b4 $1 {[%cal Bb2b4,Bb4b5][%mdl 32]} Nc4 {[%mdl 1024] [#] And now ...Bd3 would win. Black has compensation.} (17... Bd3 $5 {[%cal Rd3e2]} 18. Qxa5 (18. bxa5 Rad8 $15) 18... Bxe2 19. Nxe2 Qxe2 $15) 18. b5 $1 Qc8 19. f4 Rb8 {Strongly threatening ...Ne3.} 20. Qc6 Ne3 {...Qd8 is the strong threat.} 21. Qxc8 Rbxc8 22. Bc6 $1 Nxf1 (22... Red8 $11 {remains equal.}) 23. Bxe8 $16 Nxg3 24. Bc6 ({White should play} 24. hxg3 $14 Rxe8 25. Kf2) 24... Nxe2+ $11 25. Nxe2 Bg4 {This bishop pair is nice.} 26. Kf2 Bxe2 27. Kxe2 Rd8 28. Rd1 (28. a4 $5 {[%cal Ra4a5]}) 28... Rxd4 {The position is equal.} 29. Rxd4 Bxd4 30. h3 Bb6 {Weighted Error Value: White=0.09 (flawless) /Black=0.12 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.3"]
[White "Deepan Chakkravarthy J."]
[Black "Krishna C R G"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2520"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "171"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,171,6,11,-15,0,0,0,12,12,13,37,23,50,44,63,61,77,75,78,65,107,110,104,107,112,102,109,109,136,140,144,147,185,180,172,138,143,60,63,48,53,47,65,58,79,56,65,51,63,50,61,49,86,72,64,71,62,39,72,20,58,0,0,0,0,0,0,-10,0,0,25,40,527,499,444,471,456,456,644,247,422,431,388,377,372,0,0,0,0,0,0,0,209,-568,-568,-568,-568,-568,-567,-548,-485,-546,-508,-356,-353,-557,-535,-709,-666,-1057,-1050,-912,-619,-539,-541,-502,0,-519,-512,-480,-403,-29966,-448,-448,0,-4016,-448,-448,-434,-441,-428,-414,-380,-441,-441,-766,-759,-752,-724,-704,-696,-650,-632,-29969,-1444,-1432,-1421,-1373,-1384,-1351,-1344,-29971,-29970,-29975,-29976,-29975,-29976,-29977]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 Kf8 9. h4 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} Nc6 10. Nf3 Nge7 11. h5 {The position is equal.} h6 $1 12. Ra2 Bd7 13. Bd3 c4 14. Be2 {[#]} Nc8 $146 ({Predecessor:} 14... Nf5 15. Qh3 Qb5 16. O-O Qa4 17. g4 Nfe7 18. Nh4 Ke8 19. f4 Kd8 20. f5 Kc7 {1-0 (38) Ricardi,P (2532)-Koganov,M Dos Hermanas 2003}) 15. Nh4 Qb5 16. O-O Qa5 17. a4 Rg8 (17... N8e7 $14) 18. Rb1 $16 Rb8 19. Rb5 Qd8 20. Bc1 N6e7 21. Rb1 a5 22. Ba3 Ke8 23. f4 Qc7 24. Qh3 Qc6 25. g4 Qxa4 26. Rbb2 (26. Qg3 $16) 26... Qc6 $14 27. Bxe7 (27. Ra1 {with more complications.} b6 28. Qg3 Rb7 29. Bf3 Kd8 30. Rab1) 27... Nxe7 28. Rxa5 Qc7 29. Ra1 b5 30. Qe3 Qd8 31. Ng2 Nc8 32. Kf2 {[%cal Bg1f2,Bf2e1,Be1d2][%mdl 32]} Nb6 33. Ke1 Na4 34. Rb4 Ra8 35. Kd2 Qe7 36. f5 Kd8 37. Rf1 (37. Nf4 $16) 37... Nb6 $11 38. f6 (38. fxe6 $14 fxe6 39. Nf4) 38... gxf6 39. exf6 Qf8 40. Qf4 Kc8 41. Rfb1 Kb7 42. Nh4 {[%cal Bg2h4,Bh4f3,Bf3e5][%mdl 32]} Ra3 43. Nf3 $1 Na4 $2 {[%mdl 8192]} ({Black should play} 43... Ra5 $14) 44. Ne5 $18 Qd6 {[#]} 45. Rxa4 {[%mdl 512]} Rxa4 46. Qxh6 Be8 (46... Kc7 $142 47. Nxf7 Qg3) 47. Qe3 $2 (47. Qh7 Rf8 48. g5) 47... Kc7 $2 (47... Qa6 {was called for.} 48. Bf3 Qd6) 48. g5 b4 49. g6 fxg6 50. f7 $2 ({White should try} 50. Qg5 $18) 50... Bxf7 $1 $11 51. Nxf7 bxc3+ 52. Ke1 Qh2 {The board is on fire.} 53. h6 Qh4+ $2 {[#]} (53... Rb8 $11 {and Black stays safe.} 54. Rxb8 Ra1+ 55. Bd1 Qh1+ 56. Kf2 Kxb8 57. Qxe6 Qxd1 58. Qd6+ Kb7 59. Qxd5+ Kb8 60. Qd8+ Kb7 61. Qe7+ Kb8 62. Qe8+ Ka7 63. Qe7+ (63. Qd7+ Kb8 $11) 63... Kb8 64. Qf8+ Kc7 65. Qe7+ Kb8) 54. Qf2 $4 {[%mdl 8192]} (54. Kf1 $1 $18 {was the only winning move. White threatens Qe5+ and mate.} Qh1+ 55. Qg1 Qh3+ 56. Qg2) 54... Qxf2+ $19 55. Kxf2 Rf8 56. Kg3 Rxf7 {[%mdl 4096] Endgame KRR-KRB} 57. Bg4 g5 58. Bxe6 Rh7 59. Bxd5 {Hoping for Rb7+.} Rxh6 60. Be4 (60. Rb7+ {was forced.} Kc8 61. Rb5) 60... Rh4 61. Kf3 Ra6 {aiming for ...Rf6+.} 62. Rb4 Rf6+ 63. Ke3 Rh3+ 64. Ke2 Rh2+ 65. Ke3 Rh3+ 66. Ke2 Rf4 67. Rxc4+ Kd6 68. Bd3 (68. Ba8 $19) 68... Rh2+ (68... g4 $142 69. Rc8 Rff3 70. Rxc3 Rh2+ 71. Ke1 g3 72. Rb3 g2 73. Rb6+ Kd5 74. Rg6 Rf4 75. Rg8 Rh1+ 76. Kd2 g1=Q 77. Rxg1 Rxg1 78. Ke3 Rh4 79. Kf2 Rg8 80. c3 Rh2+ 81. Ke3 Rh3+ 82. Kd2 Rg2+ 83. Be2 Rgh2 84. Ke1 Rxc3 85. Kd1 Kxd4 86. Kd2 Re3 87. Ke1 Rexe2+ 88. Kd1 Re8 89. Kc1 Re1#) 69. Ke3 Rh3+ (69... Rh8 $142 70. Rxc3 Re8+ 71. Kd2 Rf2+ 72. Kc1 Re3) 70. Ke2 Rh8 (70... g4 $142 71. Rc8 Rff3 72. Rxc3 Rh2+ 73. Ke1 g3) 71. Rxc3 Re8+ 72. Kd2 Rxd4 {...g4 is the strong threat.} 73. Ra3 Ke5 74. Ke3 Rf4 {Threatens to win with ...Kf6+.} 75. Ra6 (75. Bb5 $142 Re7 76. Ra5) 75... Re6 76. Ra8 Kf6+ 77. Kd2 g4 78. Rg8 Re5 79. Be2 Rg5 (79... Kf7 $142 80. Rxg4 {[#]} Rxe2+ $1 {[%mdl 512]} 81. Kxe2 Rxg4 82. Ke3 Ke6 83. Ke2 Rc4 84. Kd2 Kd5 85. Kd3 Rc6 86. Ke2 Rxc2+ 87. Kf3 Rc4 88. Ke3 Rd4 89. Kf3 Kc4 90. Ke3 Kc3 91. Kf2 Rd3 92. Kg2 Kc2 93. Kh2 Kd2 94. Kh1 Ke3 95. Kg2 Ke2 96. Kh1 Kf2 97. Kh2 Rc3 98. Kh1 Rh3#) 80. Rf8+ Ke5 81. Re8+ Kd6 {White must now prevent ...g3.} 82. Ke3 Rf6 {( -> ...g3)} 83. Rd8+ Ke7 {Black mates.} 84. Rd2 g3 85. Bf3 Re5+ 86. Kd4 {Weighted Error Value: White=0.37/Black=0.35} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.4"]
[White "Mirzoev, Azer"]
[Black "Sidhant, Mohapatra"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2468"]
[BlackElo "2359"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,85,20,10,28,23,21,0,25,22,22,23,35,15,16,12,24,10,25,16,8,8,6,16,9,15,7,16,21,13,16,9,14,10,11,10,22,0,21,17,54,9,19,21,14,27,37,41,48,23,27,29,51,28,77,14,41,35,29,29,348,348,328,316,276,41,160,0,0,0,131,0,0,0,176,176,331,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. Qb3 Nbd7 6. Bf4 Be7 {D43: Semi-Slav: 5 Bg5 h6.} 7. e3 O-O 8. h3 b6 {The position is equal.} 9. cxd5 Nxd5 10. Nxd5 exd5 11. Be2 (11. Bd3 $5 {[%cal Rb3c2]}) 11... Bb7 12. O-O c5 13. dxc5 Nxc5 14. Qd1 Bf6 15. Nd4 Ne6 {[#]} 16. Nxe6 $146 ({Predecessor:} 16. Bg3 Nxd4 17. exd4 Re8 18. Bd3 g6 19. Qd2 Qd7 20. Qf4 Kg7 21. Rac1 Rac8 22. b3 {½-½ (32) Kostic,M (2304)-Mikicic,D (2197) Belgrade 2008}) 16... fxe6 17. Qb3 Rc8 18. Rac1 Qd7 {Inhibits Qa4.} 19. Bb5 Qe7 20. Bg3 Rc5 21. Rxc5 bxc5 22. Qa3 $1 a6 23. Be2 Rd8 24. b3 d4 25. exd4 (25. Qa5 $14) 25... cxd4 $11 26. Qxe7 Bxe7 27. Rc1 {And now Rc7 would win.} Rc8 28. Rxc8+ Bxc8 $14 {[%mdl 4096] Endgame KBB-KBB} 29. Be5 Bf6 30. f4 Kf7 31. Kf2 g5 (31... Bxe5 $11 32. fxe5 a5) 32. Bh5+ ({White should play} 32. g3 $1 $16) 32... Kg7 33. g3 {[%cal Bg2g3,Bg3f4,Bf4e5][%mdl 32]} gxf4 $1 34. gxf4 Bxe5 $4 {[%mdl 8192]} (34... Kh6 $1 $11 35. Bxf6 Kxh5) 35. fxe5 {KB-KB} a5 36. h4 $1 Kf8 37. Kf3 $2 (37. Ke2 $18) 37... Bb7+ {[#]} 38. Kf4 $2 (38. Ke2 $1 $16 {[%cal Re2d3]}) 38... Ke7 $11 39. Bf3 Ba6 {[#]} (39... Bd5 $11) 40. Kg5 ({White should try} 40. Bc6 $1 $16) 40... Bd3 41. Kf4 {Threatens to win with Be4.} Bb1 (41... Ba6 $11) 42. a3 $18 {Hoping for Be4.} Kd7 $2 (42... h6) 43. Be2 $2 {[%mdl 32768] Weighted Error Value: White=0.27 (precise) /Black=0.42. Loss on time!?} (43. Be4 $18 d3 44. Ke3) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.5"]
[White "Tahbaz, Arash"]
[Black "Nitin, S.."]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2469"]
[BlackElo "2427"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,61,29,35,32,21,26,35,25,15,13,21,34,0,0,0,0,0,3,0,16,21,19,0,21,0,2,0,41,33,39,45,46,41,50,42,53,0,0,0,0,0,0,0,0,0,34,0,0,-35,0,0]} 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 d6 5. d4 O-O 6. Bg2 a5 7. O-O a4 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} 8. c4 c6 9. Nc3 axb3 {White is slightly better.} 10. axb3 Rxa1 11. Qxa1 Na6 {[#]} 12. e4 $146 ({Predecessor:} 12. Rd1 Bf5 13. Nd2 Qc8 14. Qa5 Bh3 15. b4 Bxg2 16. Kxg2 Nd7 17. b5 Nc7 18. Nf3 {½-½ (31) Xiang,Z (2411)-Malakhov,V (2689) China 2018}) 12... Bg4 13. h3 Bxf3 14. Bxf3 e5 15. Na4 {[%cal Bc3a4,Ba4b2,Bb2d3][%mdl 32]} Nd7 16. Rd1 Qe7 17. Bg2 Rd8 18. Bc3 Rb8 19. d5 c5 (19... cxd5 $11 20. Rxd5 (20. exd5 f5 $11) 20... Nc7) 20. Nb2 Nc7 21. Nd3 Ra8 22. Qb2 b5 23. Ra1 Qd8 24. Ba5 {Prevents Nb6.} (24. Qc1 $14) 24... b4 $11 25. Bxc7 {A strong pair of Bishops.} Rxa1+ 26. Qxa1 Qxc7 27. Qa8+ Bf8 28. f4 Qb8 29. Qa4 Qc7 30. Kh2 Qd8 31. fxe5 {Weighted Error Value: White=0.10 (very precise) /Black=0.07 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.6"]
[White "Gholami Orimi, Mahdi"]
[Black "Rios, Cristhian Camilo"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2420"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,63,39,35,19,35,33,35,41,45,37,75,66,72,72,89,89,93,85,112,82,93,93,93,93,103,84,84,84,104,104,118,105,108,96,140,145,141,135,148,129,166,149,166,166,166,0,132,137,137,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Nbd2 dxc4 6. Bg2 O-O 7. Qc2 Nc6 8. Qxc4 Qd5 {8...Bd6 is not played anymore.} 9. O-O {E04: Open Catalan: 5 Nf3.} Bxd2 10. Qxd5 exd5 11. Bxd2 {White is slightly better.} Re8 12. e3 Bg4 13. Rfc1 {[%cal Of3e5]} Ne4 14. Be1 {[%cal Of3e5]} Bxf3 15. Bxf3 {[%cal Bg2f3,Bf3d1,Bd1b3][%mdl 32] [#]} f5 $146 ({Predecessor:} 15... Rac8 16. b4 f5 17. b5 Nd8 18. Bd1 Ne6 19. Bb3 Rcd8 20. h4 g6 21. Kg2 Kf7 {1-0 (61) Kozionov,K (2444)-Kazakovskiy,V (2328) Kirishi 2016}) 16. Bd1 Re7 17. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Nd8 18. Bb3 Rd7 19. b5 Ne6 20. h4 g6 21. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} h6 22. a5 Kf7 23. Ba4 {[%cal Ob5b6]} Rdd8 24. a6 b6 (24... Rab8 $142) 25. Bb3 $16 Nf6 26. Rc6 Rd7 27. Rac1 Rc8 28. f3 Nd8 29. R6c2 Ne6 30. Rc6 Nd8 $1 {[#]} 31. R6c3 {White is more active.} Ne6 32. Rc6 {Weighted Error Value: White=0.13 (very precise) /Black=0.11 (very precise)} (32. Bd2 $16) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.7"]
[White "Nigmatov, Ortik"]
[Black "Saptarshi, Roy"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2445"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,86,34,43,40,46,25,27,26,24,25,44,35,43,39,41,29,31,27,34,45,43,35,44,44,44,43,46,22,20,17,15,15,17,14,21,14,22,14,24,8,37,0,0,0,0,0,0,-56,-45,-60,-53,-104,0,0,-1,0,34,17,408,341,291,237,229,37,23,0,0,0,0,-496,0,0,0,-29998,-29999]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 Kh8 8. a5 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} a6 9. Nc3 {now supersedes 9.c3.} Bg4 10. h3 {White has an edge.} Bh5 11. Nd5 {[#]} Bxf3 $146 ({Predecessor:} 11... Nxd5 12. Bxd5 Nxa5 13. g4 Bg6 14. h4 h6 15. h5 Bh7 16. Kh2 Nc6 17. c3 Qd7 {½-½ (76) Popovic,D (2548)-Pap,M (2504) Kragujevac 2012}) 12. Qxf3 Nd4 {[%csl LRc2,LRf3]} 13. Qd1 Nxd5 14. Bxd5 c6 15. Bc4 Bg5 16. Bxg5 Qxg5 17. c3 Ne6 18. Bxe6 fxe6 19. Qb3 {[%csl LRb7,LRe6]} Qe7 20. d4 exd4 21. cxd4 Rf4 22. Re2 Raf8 23. Ra3 R8f7 24. Qe3 Qf8 25. Rb3 h5 26. Qg3 Qe7 27. f3 g5 28. Ree3 {[%cal Od4d5]} g4 29. hxg4 (29. fxg4 $2 Rf1+ 30. Kh2 h4 $19) 29... hxg4 30. Kf2 (30. d5 $11) 30... e5 $15 31. dxe5 Qxe5 32. Re1 (32. Qh4+ $15 Kg8 33. Qd8+ Kh7 34. Qh4+ Kg7 35. Kg1) 32... Rh7 {Chess con chili.} ({Don't play} 32... Qxa5 $6 33. Rh1+ Kg8 34. Qh4 Qc5+ 35. Kf1 $11 (35. Kg3 $2 Qe5 $19)) (32... Kg8 $17 {Threatens to win with ...Rg7.} 33. Kg1 Qxa5) 33. Ke2 $11 d5 34. Kd1 ({Much worse is} 34. Rd1 Kg8 35. Kd2 Rg7 $17) 34... d4 35. fxg4 {[#] And now Rf3 would win.} Qg5 $2 {[%mdl 8192]} (35... Rhf7 $1 $11) 36. Rf3 $18 Rxf3 (36... Rxg4 $2 37. Qb8+ Qg8 38. Rf8 $18) 37. gxf3 {[%mdl 4096] Endgame KQR-KQR} ({Weaker is} 37. Qb8+ Qg8 38. Qxg8+ Kxg8 $16) 37... Qc5 38. Qf2 $2 (38. Qb8+ $18 Kg7 39. Qxb7+ Kg6 40. Qb3) 38... Qc4 $1 $14 (38... Qb4 $2 39. Qd2 Qb3+ 40. Kc1 Qxf3 41. Qxd4+ Kg8 42. g5 $16) 39. Qc2 Qa2 40. b4 Qa1+ 41. Kd2 $2 {[%mdl 8192]} (41. Qc1 $1 $11 {and White is okay.} Qa2 42. Qd2 Qa4+ 43. Kc1 Qa1+ 44. Kc2 Qa2+ 45. Kd1 Qa4+ 46. Kc1 Qa1+ 47. Kc2 Qa2+ 48. Kd1) 41... Rh2+ $2 (41... Qa3 $19 {( -> ...Rh2+)} 42. Kd1 Qxf3+ 43. Qe2 Qb3+ 44. Qc2 Qxb4) 42. Re2 $11 Rh1 {[%cal Oh1d1]} 43. e5 $2 {[%mdl 8192] [#]} (43. Kd3 $11 Rd1+ 44. Rd2) 43... Rd1+ $1 {[%mdl 576] Deflection.  Weighted Error Value: White=0.53/Black=0.35} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.8"]
[White "Shyaamnikhil P"]
[Black "Ratnakaran, K.."]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2442"]
[BlackElo "2316"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,70,5,0,0,-7,-18,-20,0,0,0,-8,-10,-16,-15,-17,-16,-16,-8,-33,-42,-47,-2,-20,0,-12,-14,-11,-12,-11,22,23,34,34,36,12,12,0,18,16,15,14,19,4,7,0,18,3,10,12,1,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. e4 d6 6. d3 Be7 7. Nbd2 O-O 8. c3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32] B50: Sicilian: 2...d6, Miscellaneous.} 9. a4 b4 10. Nc4 {[#]} Ba6 $146 ({Predecessor:} 10... Rb8 11. Ne3 bxc3 12. bxc3 Na5 13. Nd2 Be6 14. f4 exf4 15. gxf4 Re8 16. Kh1 Bf8 {½-½ (40) Blanco Gramajo,C (2531)-Povchanic,D (2529) ICCF email 2010}) 11. Nfd2 Rb8 12. Qe2 Re8 13. Ne3 bxc3 14. bxc3 Na5 15. c4 Bc8 16. Ba3 Bd7 17. Qd1 Bc6 (17... Nc6 $15) 18. Bh3 Bf8 19. Qc2 Re7 20. Bb2 Reb7 21. Bc3 Bd7 22. Bxd7 Nxd7 23. Rfb1 Nc6 24. Rxb7 Rxb7 {The position is equal.} 25. Rb1 Rxb1+ 26. Qxb1 Qc8 27. Nd5 Be7 28. Nf1 {[%cal Bd2f1,Bf1e3,Be3g4,Bg4f2][%mdl 32]} Bd8 29. Nfe3 {aiming for Nf5.} g6 {Prevents Nf5.} 30. Kg2 Nf8 31. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} Ne6 32. f5 Ned4 33. Bxd4 exd4 34. Ng4 h5 35. Nf2 Kg7 {Weighted Error Value: White=0.05 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.9"]
[White "Kaustuv, Kundu"]
[Black "Stany, G.A."]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2308"]
[BlackElo "2517"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,64,-15,0,-6,12,4,11,0,6,-11,-6,-19,-23,-27,-23,-25,-25,-38,-20,-18,-17,-30,-9,-34,-7,-31,-27,-30,-22,-13,-22,-31,-30,-25,-32,-35,-13,-18,-13,-15,-15,-20,-8,-20,-4,-4,-5,-5,-5,-5,-4,-5,-5,-6,-6,-6,-6]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O Nf6 {[%cal Bg8f6,Bf6e4,Be4d6,Bd6b5,Bb5c7,Bc7a6,Ba6b4][%mdl 32]} 5. b3 Ne4 6. c3 {A07: Réti Opening: New York and Capablanca Systems.} c5 7. Bb2 Nc6 8. d3 Nd6 9. Nbd2 O-O 10. e4 Nb5 11. Rc1 d4 12. cxd4 {[#]} cxd4 $146 ({Predecessor:} 12... Nbxd4 13. Nxd4 Bxd4 14. Bxd4 Qxd4 15. Nf3 Qd6 16. Qd2 Bg4 17. e5 Nxe5 18. Nxe5 Qxe5 19. Bxb7 {1-0 (37) Pantsulaia,L (2553)-Erdos,V (2618) Chess.com INT 2020}) 13. Nb1 a5 14. a4 Nc7 15. Nbd2 Na6 16. Nc4 Nab4 17. Qd2 Rb8 18. Ba3 b5 (18... e5 {looks sharper.} 19. Ne1 b5 20. axb5 Rxb5 21. Ra1 Re8) 19. axb5 Rxb5 20. Bxb4 Nxb4 21. Ra1 Nc6 22. Ra3 Be6 23. Rfa1 {The position is equal.} Qb8 24. Nxa5 Nxa5 25. Rxa5 Rxb3 26. h3 Rb2 27. Qe1 h6 28. e5 Rb5 29. Rxb5 Qxb5 30. Nxd4 Qxe5 31. Qxe5 Bxe5 32. Nxe6 Bxa1 {A balanced but interesting game.  Weighted Error Value: White=0.06 (flawless) /Black=0.07 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.10"]
[White "Visakh N R"]
[Black "Poormosavi, Seyed Kian"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2522"]
[BlackElo "2229"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,109,26,21,44,48,50,43,42,35,59,53,59,51,55,47,47,47,68,61,66,54,58,56,62,72,80,43,64,63,60,68,67,50,66,56,118,118,122,122,115,123,121,123,125,122,174,170,183,176,204,204,188,188,289,265,349,334,334,334,314,252,241,243,206,211,277,276,276,276,269,234,219,225,233,227,224,218,247,238,220,202,583,553,939,808,7852,7147,29978,29978,29978,29979,29984,29985,29984,29985]} 1. d4 Nf6 2. c4 b6 3. Nc3 d5 4. Bg5 Bb7 5. e3 dxc4 6. Nf3 e6 7. Bxc4 Be7 8. O-O O-O 9. Qe2 Ne4 {D53: Queen's Gambit Declined: 4 Bg5 Be7: Early deviations.} 10. Nxe4 Bxe4 11. Bxe7 Qxe7 {White is slightly better.} 12. Rac1 {[#]} c5 $146 ({Predecessor:} 12... Rd8 13. Ne5 Nd7 14. Bd3 Bxd3 15. Nxd3 Rac8 16. Rc3 e5 17. dxe5 Nxe5 18. Nf4 c5 19. e4 Ng6 20. Nh5 Rd4 21. Ng3 {½-½ (21) Lapcevic,M (2324)-Fauth,D (2091) Bayern 2015}) 13. dxc5 bxc5 14. Bd3 Bxd3 15. Qxd3 Nd7 16. Rc2 Rfc8 17. Rfc1 {[%cal Ob2b4] White is more active.} Rc7 18. Qa3 h6 19. h3 Rb7 20. Nd2 {[%cal Bf3d2,Bd2b3,Bb3a5,Ba5c4,Bc4d6][%mdl 32]} Rc8 21. Nb3 {[%cal Rb3c5]} Qf6 22. Na5 Rbc7 23. Nc4 Qe7 24. Qa6 Nb8 25. Qd6 Qxd6 {Black is now going downhill.} (25... Qd8 $14) 26. Nxd6 $16 Rd8 {[#]} 27. Rxc5 $1 Rxc5 28. Rxc5 Rxd6 {[%mdl 4096] Endgame KRN-KR} 29. Rc8+ Kh7 {Threatens to win with ...Nd7.} 30. Rxb8 {KR-KR} Rd2 (30... Ra6 $16 {was called for.}) 31. g4 $18 Kg6 32. a4 a5 33. Rb5 f6 34. Kg2 e5 (34... f5 {keeps fighting.} 35. gxf5+ (35. Rxa5 Rxb2 36. Ra8 fxg4 $16) 35... exf5) 35. Kg3 ({Don't do} 35. Rxa5 $6 Rxb2 36. Ra7 Ra2 $18) 35... Kf7 36. h4 (36. Rxa5 Rxb2 37. Ra7+ Kg6) 36... g6 37. b3 ({But not} 37. Rxa5 Rxb2 38. Ra8 Ke6 $18) 37... Rb2 38. f4 e4 39. Rb7+ ({Much less strong is} 39. Rxa5 $6 Rxb3 40. Ra7+ Ke6 $16) 39... Kg8 40. f5 g5 41. hxg5 hxg5 {[#]} 42. Re7 $1 Rxb3 43. Rxe4 Kf7 44. Kf3 Ra3 45. Rd4 Ke7 46. Ke4 Rb3 {[#]} 47. Kd5 $1 Rc3 48. Re4+ Kd7 $2 (48... Kf7 49. Kd6 Rd3+ 50. Kc6 Rb3) 49. Re6 {aiming for e4.} Ra3 50. Rxf6 Rxa4 51. e4 {[%cal Be3e4,Be4e5][%mdl 32] White wants to mate with Rf7+.} Rb4 52. Rf7+ {White mates.} Ke8 53. Ra7 a4 54. f6 a3 55. e5 {Weighted Error Value: White=0.04 (flawless) /Black=0.44} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.11"]
[White "Iniyan, P."]
[Black "Srija, Seshadri"]
[Result "1/2-1/2"]
[ECO "C75"]
[WhiteElo "2516"]
[BlackElo "2219"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,91,31,43,32,39,34,59,18,87,45,50,46,72,64,72,58,64,20,23,15,25,22,16,23,30,20,28,0,15,27,54,0,22,0,16,0,8,0,63,9,33,-66,53,25,45,43,58,12,117,0,175,176,171,188,180,83,92,48,64,0,0,0,0,0,0,0,0,0,0,0,35,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O g6 7. d4 Bg7 8. d5 Nce7 9. Bxd7+ Qxd7 10. c4 Nf6 11. Nc3 {C76: Ruy Lopez: Deferred Steinitz: 5 c3 Bd7 6 d4 g6.} h6 {[#]} 12. Ne1 $146 ({Predecessor:} 12. b4 a5 13. Ba3 axb4 14. Bxb4 O-O 15. c5 Nh5 16. cxd6 cxd6 17. a4 Ra6 18. Nd2 {1-0 (75) Potkin,V (2516)-Kobalia,M (2635) ICC INT 2003}) 12... g5 13. b4 (13. Nc2 $14) 13... a5 (13... b5 $11 {keeps the balance.}) 14. Ba3 (14. b5 $16) 14... axb4 15. Bxb4 b6 16. a4 O-O 17. Nc2 Ne8 18. g4 (18. a5 $14 {might be stronger.}) 18... Ng6 {[%cal Oh6h5]} 19. Ne3 Nf4 20. Nf5 Kh7 21. a5 bxa5 22. Bxa5 Nf6 23. f3 h5 24. gxh5 N6xh5 25. Nb5 (25. Qa4 $14 Qxa4 26. Rxa4) 25... Rfb8 26. Qd2 (26. Bxc7 Rxa1 27. Qxa1 Rxb5 28. Bxd6 Rb3 $19) 26... Rb7 27. Kh1 Bf8 28. Bc3 Rab8 (28... Rbb8 $11) 29. Ra6 {White is much more active.} (29. Rg1 $14) 29... f6 (29... Ng7 $5 {[%cal Rg7f5]}) 30. Qf2 {[#]} (30. Rfa1 $14) 30... Ng7 (30... Nxd5 $1 $15 31. cxd5 Qxb5) 31. Ne3 Be7 32. Rfa1 Kg8 33. Bd2 (33. Qg1 $14) 33... Ngh5 (33... f5 $1 $11) 34. Nf5 (34. Qg1 $16) 34... Ng7 $2 (34... Nxd5 $1 $11 {and Black has nothing to worry.} 35. Na7 (35. cxd5 Rxb5 36. Qf1 Ng7 $11) 35... Rb1+ 36. Be1 R1b2) 35. Bxf4 $18 Nxf5 36. exf5 {Black must now prevent Bd2.} exf4 37. Qc2 (37. Qe2 $18 {and White stays clearly on top.}) 37... Bf8 $16 {[#]} 38. Ra8 (38. Kg2 $1 $16) 38... c6 39. Rxb8 ({White should try} 39. Nc3 $1 $14) 39... Rxb8 $11 40. Nd4 cxd5 41. cxd5 Qb7 42. Qe4 Qb2 43. Rg1 Qf2 {Strongly threatening ...Rb2.} 44. Rg2 ({But not} 44. Qe6+ Kg7 45. Qd7+ Kh8 $17) 44... Qf1+ 45. Rg1 Qf2 {aiming for ...Rb2.} 46. Rg2 {Weighted Error Value: White=0.27 (precise) /Black=0.32} ({Don't play} 46. Qe6+ Kg7 47. Qd7+ Kh8 $19) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.12"]
[White "Aradhya, Garg"]
[Black "Mosadeghpour, Masoud"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2236"]
[BlackElo "2511"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,119,14,15,30,26,47,42,41,44,41,31,31,34,43,31,24,30,62,66,72,67,112,92,75,93,123,118,187,160,155,166,158,162,165,200,168,158,174,104,106,119,103,76,76,29,76,76,153,76,191,188,184,174,194,189,194,194,192,106,137,127,339,291,483,294,287,295,252,256,437,450,614,480,575,568,513,492,4956,300,300,300,300,300,1043,1135,611,268,528,494,614,614,5416,5409,5369,5314,5223,596,1022,664,2255,4129,4133,3360,4133,4133,29984,29983,29990,29987,29992,29993]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Nbd7 5. cxd5 exd5 6. Bf4 a6 {D35: Queen's Gambit Declined: Exchange Variation.} 7. e3 b5 8. Rc1 Bb7 {White is slightly better.} 9. Bd3 {[#]} Be7 $146 ({Predecessor:} 9... c5 10. dxc5 Bxc5 11. O-O O-O 12. Bf5 Re8 13. a4 b4 14. Ne2 g6 15. Bb1 Rc8 {0-1 (33) Bernard,C (2405)-Shirazi,K (2445) Le Touquet 1996}) 10. a4 c6 11. O-O O-O 12. e4 b4 {[#]} 13. e5 $1 bxc3 (13... Nh5 14. Ne2) 14. exf6 Nxf6 15. Rxc3 {[%cal Bc1c3,Bc3b3,Bb3b7,Bb7a7][%mdl 32]} Ne4 (15... Bb4 $14 {was preferrable.}) 16. Rb3 $16 Ra7 17. Qc2 Qa5 18. Ne5 {[%cal Ob3b7]} (18. Bxe4 dxe4 19. Qxe4 Qxa4 $14) 18... Qxa4 {[#]} (18... c5 $16 {is a better defense.}) 19. Rxb7 $1 {[%mdl 576] Discovered Attack} Qxc2 20. Rxa7 {The board is on fire.} Qxb2 21. Rxe7 Qxd4 22. Be3 {A strong pair of Bishops.} (22. Bxa6 f6 $11) 22... Qa4 23. Bxe4 dxe4 24. Nd7 (24. Rc1 f6 $16) (24. h3 $1 $18) 24... Rd8 25. Nc5 {[%csl LRa4,LRe4] White is much more active.} Qc2 26. h4 (26. Nxe4 h6 $14) 26... h6 27. Rxe4 (27. Nxe4 Rd1 28. Rxd1 Qxd1+ 29. Kh2 Qd8 $11) (27. Kh2 $16) 27... Rd1 (27... f5 $1 $11 28. Re5 a5) 28. Rxd1 Qxd1+ 29. Kh2 Qd5 {[#]} (29... a5 $16) 30. Ra4 $1 $18 f5 31. g3 (31. Rxa6 f4 32. Bxf4 (32. Ra8+ Kh7 $17) 32... Qxc5 $17) 31... g5 {[#]} 32. Rd4 $1 Qf3 33. hxg5 hxg5 34. Nd3 ({Better is} 34. Nxa6 $18 Qh5+ 35. Kg2) 34... f4 35. gxf4 g4 {Loses the game.} (35... Qh5+ $16 36. Kg3 Qh4+ 37. Kf3 gxf4 38. Bxf4 (38. Rxf4 Qh5+ 39. Kg3 Qd5 $18) (38. Nxf4 a5 $16) 38... a5) 36. Ne5 Qh3+ 37. Kg1 g3 38. Nf3 {To avoid Qh2+. Strongly threatening Rd8+.} ({Don't blunder} 38. Nxc6 $2 g2 39. Rd8+ Kh7 40. Rd7+ Qxd7 $19) 38... Qh5 39. Rd8+ Kf7 $2 (39... Kg7) 40. Ne5+ Ke7 41. Rd7+ Ke6 {Threatens to win with ...Qh2+.} 42. fxg3 Qe2 43. Bf2 a5 (43... Qc2 $142 44. Rc7 Qd1+ 45. Kg2 Qd5+ 46. Nf3 Qe4) 44. Rc7 $2 (44. g4 {White threatens f5+ and mate.} Qc2 45. Bg3) 44... a4 45. Rxc6+ Kf5 {[#]} 46. Rc3 Qd1+ (46... Qe4 47. Rc5 Ke6 48. Rc6+ Kf5) 47. Kg2 Qd5+ 48. Kf1 (48. Nf3 $142 {Hoping for Rc5.} Kg4 49. f5) 48... Qa5 (48... Qh1+ 49. Ke2 Qa1) 49. Rc5 Qa6+ 50. Kg2 {Black must now prevent Nf3+.} Qa8+ 51. Nf3+ Ke6 52. f5+ {[%cal Bf4f5,Bf5f6,Bf6f7][%mdl 32]} Kd7 53. Rc2 a3 54. Ra2 {aiming for f6.} Qa5 55. f6 Ke6 56. Bd4 {Re2+ is the strong threat.} Kf7 57. g4 Kg6 58. Ne5+ {White mates.} Kg5 59. f7 Qd5+ 60. Kg3 {Weighted Error Value: White=0.30/Black=0.46} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.13"]
[White "Priyanka, Kumari"]
[Black "Karthik Venkataraman"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1910"]
[BlackElo "2485"]
[Annotator "TA"]
[PlyCount "152"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,152,19,22,6,29,8,17,7,14,-46,-30,-26,-11,-59,-22,-15,-24,-13,-12,-21,-28,-57,-50,-42,-31,-33,-34,-81,-69,-70,-68,-70,-70,-74,-67,-64,-53,-68,-63,-98,-44,-47,-45,-72,0,-47,-41,-45,-46,-93,-37,-37,-37,-59,-47,-52,-37,-42,-38,-38,-38,-46,0,-12,0,-8,0,-29,0,8,31,31,36,10,26,14,70,81,100,100,90,72,64,0,0,0,191,142,276,266,368,357,501,492,441,470,488,500,568,568,554,385,372,360,308,298,378,131,108,0,210,169,152,115,113,53,43,63,56,23,20,8,10,43,35,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} h6 7. Be2 e5 8. Nb3 Be7 9. f4 {[#]} (9. Be3 $11) 9... Nc6 $146 ({Predecessor:} 9... b5 10. a3 Nbd7 11. Bf3 Bb7 12. g4 Rc8 13. g5 hxg5 14. fxg5 Rxc3 15. bxc3 Nxe4 {½-½ (33) Inarkiev,E (2668)-Kozul,Z (2601) Zagreb 2021}) 10. g3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 11. Bf3 (11. a3 $11 {should be considered.}) 11... Bb7 12. Be3 Rc8 13. Qd2 Na5 14. Nxa5 Qxa5 15. O-O b4 (15... Qb4 $5 {[%cal Rb4b2]} 16. Rab1 Qc4 $11) 16. Nd5 Bxd5 17. exd5 e4 18. Bg2 (18. Be2 $15) 18... Qxd5 $17 19. Qxb4 O-O $1 20. Rfd1 Qe6 21. Qd2 d5 22. c3 Rfd8 23. Qe2 a5 24. a4 Qf5 (24... Bc5 $17 25. Bxc5 Rxc5) 25. Rd2 $15 Qg6 26. Qe1 Qf5 (26... Ng4 $5 {[%cal Rg4e3]} 27. Bd4 Bc5 $15) 27. Qe2 $1 Re8 28. Bd4 Bc5 29. Rad1 (29. Bxc5 $15 Rxc5 30. Bf1) 29... Kh8 ({Better is} 29... Bxd4+ $17 30. Rxd4 Rb8) 30. Bxc5 Rxc5 31. Rd4 Qg6 32. Qe3 Qg4 33. R1d2 Re6 34. Bf1 Qf5 (34... Rec6 {looks sharper.} 35. Kg2 Rc8 36. Be2 Qe6 37. Rd1 R5c7) 35. Qe1 Rc7 (35... Rec6 $15 {is more appropriate.}) 36. Rh2 Re8 37. Bh3 $1 Qh5 38. Qe2 {To avoid Rc4} Qg6 39. g4 Nd7 40. Rxd5 Qb6+ 41. Rf2 {[%cal Bh2f2,Bf2f3,Bf3e3][%mdl 32]} e3 42. Rf3 Nc5 (42... Nf8 $11) 43. Rxe3 $14 Nb3 {[#]} 44. Rde5 Rxe5 45. fxe5 Rd7 46. Qf2 ({White should try} 46. e6 $14 Rd1+ 47. Qxd1 Qxe3+ 48. Kh2 Qe5+ 49. Kg2 Qxe6 50. g5 Qe4+ 51. Qf3 Qxh4 52. Qxf7 Qxg5+ 53. Kf3) 46... Rd1+ $1 $11 47. Kg2 $1 ({Not} 47. Bf1 $2 Nd2 48. Re1 Nf3+ 49. Kg2 Nxe1+ $19) 47... Qc6+ $2 (47... Nd2 $1 $11 48. Kg3 Qxb2) 48. Kg3 (48. Qf3 $18 Qc5 49. e6 (49. Qxd1 Qxe3 50. Qf3 Qd2+ 51. Qf2 Qd5+ 52. Kg1 Kg8 $16) 49... fxe6 50. Qa8+ (50. Qxd1 Qxe3 51. g5 Nd2 $16) 50... Kh7 51. Qe4+ g6 52. Qxe6 (52. Qb7+ Kh8 $16) 52... Rd2+ 53. Kh1) 48... Qc5 (48... Kg8 $16 49. Bg2 Qb6) 49. Bg2 Nc1 50. Qf3 {b4 is the strong threat.} Rd2 (50... Rd8 $142 51. Qe4 Nb3) 51. Qa8+ $18 Kh7 52. Qe4+ Kh8 53. b4 Qb6 54. bxa5 Qxa5 55. Qa8+ Qxa8 56. Bxa8 {[%mdl 4096] Endgame KRB-KRN} Kg8 57. c4 {And now Ra3 would win.} Ra2 {Inhibits Ra3.} 58. Re1 $2 ({Less strong is} 58. Bc6 Ne2+ 59. Kh2 (59. Kh3 Nf4+ 60. Kg3 Ne2+ 61. Kh2 Nd4+ 62. Bg2 Rxa4 $16) 59... Nd4+ 60. Bg2 Kf8 $16) (58. Kf3 $18 {is more deadly.}) 58... Nd3 $16 {[#]} 59. Re3 (59. Re4 $1 $16) 59... Nc5 $2 (59... Nc1 $1 $11 {and Black is okay.}) 60. Bc6 Kf8 61. Kf3 Ke7 62. Re2 (62. h5 $16) 62... Ra3+ $14 63. Kf4 (63. Kg2 {with more complications.} Nxa4 64. Bd5 Nc5 65. h5 Ne6 66. Kf2) 63... Nxa4 64. Bxa4 (64. Re3 $5 {[%cal Re3a3]} Ra1 65. Rb3 $16) 64... Rxa4 {KR-KR} 65. Rc2 Ke6 66. h5 g6 67. hxg6 fxg6 {The position is equal.} 68. Rc1 h5 69. gxh5 gxh5 70. Rc2 h4 71. Ke4 Ra5 72. c5 Ra4+ 73. Kf3 {aiming for c6.} Kxe5 74. c6 {Strongly threatening c7.} Ra8 75. Kg4 Rc8 76. Kxh4 Kd6 {Black defended with fortune.  Weighted Error Value: White=0.21 (precise) /Black=0.26 (precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.14"]
[White "Abdisalimov, Abdimalik"]
[Black "Mayank Chakraborty"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2435"]
[BlackElo "2164"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,90,51,51,55,50,42,43,47,63,57,55,97,97,103,68,88,95,114,102,95,63,75,77,116,110,114,115,116,126,322,270,244,238,373,385,370,346,350,279,278,277,267,225,276,256,495,237,216,0,0,0,0,0,0,-4,0,0,-1,-4,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. f3 d5 9. cxd5 exd5 10. e3 Nbd7 11. Bd3 h6 12. Bh4 Re8 13. Ne2 c5 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} 14. O-O Qe7 15. Bf2 Rac8 {White is slightly better.} 16. Qd2 Nb8 17. b4 Nc6 {[#]} (17... cxd4 $14 18. Nxd4 Nfd7) 18. bxc5 $146 ({Predecessor:} 18. Rab1 cxd4 19. exd4 Ne4 20. fxe4 dxe4 21. Bc2 e3 22. Qd3 exf2+ 23. Rxf2 g6 24. Bb3 Qe4 25. Bxf7+ Kg7 26. Qxe4 Rxe4 27. Bd5 Re7 28. Rc1 Rec7 29. Be6 {1-0 (29) Maiorov,N (2524)-Lanin,A (2444) Minsk 2008}) 18... bxc5 19. Ng3 g6 {Inhibits Nf5.} 20. dxc5 Ne5 21. Bb5 Red8 22. Qd4 Rxc5 23. Rfb1 Ba8 24. Be1 Nc6 25. Bxc6 Rxc6 26. Rc1 Rc4 $2 {[#]} (26... Ne8 $16 {was necessary.} 27. Bb4 (27. Bc3 f6 $16) 27... Qb7 28. Rxc6 Qxc6 29. Qxa7 Bb7) 27. Bb4 $1 Rxc1+ 28. Rxc1 Qe6 (28... Qe8 {keeps fighting.} 29. Bc3 (29. Qxa7 d4 $18) 29... Rd6 30. Qxa7 Nd7) 29. Rc7 $18 Nd7 30. Bc3 {[%csl Gc3][%cal Rd4g7]} f6 31. Qxa7 (31. Rxa7 Rc8 32. a4 Bc6 $18) 31... Bc6 32. Ne2 {Hoping for Nf4.} g5 {Prevents Nf4.} 33. Bb4 Ra8 34. Qd4 {And now Qd3 would win.} Ne5 {To avoid Qd3} (34... Bb5) 35. Ng3 (35. f4 $142) 35... Be8 36. Nf5 $2 Nxf3+ $11 {The position is equal.} 37. gxf3 Qxf5 38. e4 $40 {[%mdl 128] White is up to no good.} dxe4 39. Qc4+ ({Much worse is} 39. fxe4 Qg4+ 40. Kh1 Qf4 41. Qd5+ Kh8 $15) 39... Kh8 40. Qxe4 Qxe4 41. fxe4 {KRB-KRB} Bg6 42. Bc3 Kg8 43. Bxf6 {Strongly threatening Rg7+.} Bxe4 44. Rg7+ Kf8 45. Rc7 Ra6 {Black defended with fortune.  Weighted Error Value: White=0.23 (precise) /Black=0.27 (precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.15"]
[White "Imocha, Laishram"]
[Black "Gusain, Himal"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "2049"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,70,45,46,66,7,70,39,45,63,93,80,77,79,89,97,131,115,113,94,104,102,109,113,85,77,93,56,61,10,9,-26,-22,-41,-26,-29,-23,-23,-24,-54,-50,-96,-127,-516,-510,-909,-909,-868,-645,-625,-587,-589,-561,-606,-561]} 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 exd5 5. cxd5 g6 6. g3 Bg7 7. Bg2 d6 8. Nc3 O-O 9. O-O Na6 10. Nd2 {10.Bf4 is the hot move.} Rb8 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7.} 11. e4 (11. a4 $1 $14) 11... Ne8 (11... Ng4 $11) 12. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Nb4 {White is slightly better.} 13. Nc4 {[#]} a6 $146 {[#]} ({Predecessor:} 13... b6 14. Nb5 Ba6 15. Qb3 Qd7 16. Bf4 Bxb5 17. axb5 Rd8 18. Rfe1 f6 19. h4 h6 {½-½ (68) Yeager,D (2335)-Kiselev,V (2539) ICC INT 2009}) 14. a5 $1 Bd7 15. Nb6 Nc7 {[#]} 16. Bg5 $1 f6 (16... Qxg5 17. Nxd7) 17. Bf4 Bb5 18. Nxb5 Nxb5 19. Bd2 f5 {[#]} 20. exf5 $1 gxf5 21. Bxb4 cxb4 22. Qd2 Bd4 23. Nc4 (23. Rac1 $14) 23... f4 $11 24. gxf4 Rc8 {[%cal Bb8c8,Bc8c7,Bc7f7,Bf7f4,Bf4f2][%mdl 32]} 25. Qd3 ({Reject} 25. Qxb4 Rxf4 26. Rac1 (26. Kh1 $2 Be5 $19) 26... Qh4 $15) 25... Rc7 26. Kh1 Rcf7 27. Rae1 Rxf4 28. Qg3+ Kh8 {[%cal Rd4f2]} 29. Re6 (29. Re4 $1 $15 Rxf2 30. Rxf2 Bxf2 31. Qg4) 29... Bxf2 $17 30. Rxf2 {[%mdl 8192] White does not recover from this.} Rxf2 $19 {Black is clearly winning.} 31. Nxd6 (31. h3 $142) 31... Nxd6 32. Rxd6 Qe7 {( -> ...Qe1+)} 33. Re6 {Inhibits Qe1+.} Qg7 34. Qxg7+ Kxg7 35. d6 Rxb2 {Weighted Error Value: White=0.50/Black=0.25 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.16"]
[White "Arnav Maheshwari"]
[Black "Shahil Dey"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1934"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,-13,-14,-22,-25,-29,54,0,21,6,16,8,16,13,0,0,18,-66,-64,-66,-65,-66,14,11,4,-12,-8,-8,9,23,22,0,-8,-12,-10,-19,-7,-39,-39,-39,-8,-23,0,0,0,-55,-55,-54,-62,-104,-62,-62,0,-29,-21,-54,387,380,933,928,921,912,892,879,848,638,638,635,625,617,595,594,563,467]} 1. e4 c5 2. Nf3 e6 3. b3 Nc6 4. Bb2 Qc7 5. Be2 Nf6 6. Nc3 {B40: Sicilian: 2...e6, Unusual lines.} a6 {Inhibits Nb5.} 7. O-O {[#]} Nd4 $146 (7... Be7 $11) ({Predecessor:} 7... Bd6 8. h3 O-O 9. Re1 Ne5 10. d4 Nxf3+ 11. Bxf3 cxd4 12. Qxd4 Bc5 13. Qd2 e5 {0-1 (48) Ding,Y (2424)-Skripchenko,A (2403) Riadh 2017}) 8. h3 (8. e5 $14 Nxf3+ 9. Bxf3 Qxe5 10. Nd5 $1 Qxb2 11. Nc7+ Kd8 12. Nxa8) 8... Nxe2+ 9. Qxe2 d6 10. e5 dxe5 11. Qxe5 Bd6 12. Qg5 Rg8 {White must now prevent ...Bf4.} (12... Be7 {feels hotter.} 13. Qxg7 Rg8 14. Qh6 Bd7 15. d3 Bc6) 13. Nb5 axb5 $15 14. Bxf6 {[%mdl 64] Pin} h6 15. Qg4 Kf8 ({Better is} 15... h5 $15 16. Qg5 Bf4) 16. Bb2 $11 f6 17. Rfe1 e5 18. Qg6 Qf7 19. Qd3 {[%csl LRb5,LRd6]} Qd7 20. a4 bxa4 21. Rxa4 Rxa4 22. bxa4 g5 23. Qe3 Kg7 24. a5 Re8 25. d3 Qb5 (25... Qa4 $5 {[%cal Ra4c2]}) 26. Bc3 Qa4 27. d4 (27. Rc1 $11) 27... cxd4 $15 28. Nxd4 Re7 29. Nb3 (29. Ne2 $15 {feels stronger.}) 29... Bf5 ({Black should try} 29... Rc7 $17 30. Qb6 Qd7) 30. Qb6 {[#]} Bb8 (30... Bxc2 $1 $15 31. Nc5 (31. Qxd6 Rd7 $17) 31... Bxc5 32. Qxc5 Rf7) 31. Nd4 Bc8 32. Qb4 Qd7 {[%mdl 8192] A mistake that costs the game.} (32... Qxb4 $15 {keeps the upper hand.} 33. Bxb4 Re8) 33. Nf5+ $1 $18 Qxf5 $2 (33... Kf8) 34. Qxe7+ {White is clearly winning.} Kg6 35. Qe8+ Kg7 36. Bb4 {Threatening mate with Bf8+.} Qe6 37. Bf8+ Kh7 38. Qxe6 Bxe6 39. Rb1 Bd5 40. a6 Kg8 41. Bc5 {Weighted Error Value: White=0.28 (precise) /Black=0.42} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.17"]
[White "Karthikeyan, P.."]
[Black "Kumar, Gaurav"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2396"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,77,29,31,25,14,31,39,39,39,37,47,39,36,12,46,42,41,31,107,47,42,42,50,39,69,81,78,51,51,36,43,30,120,122,116,122,123,120,108,108,205,198,211,216,237,243,239,235,429,425,453,425,427,421,564,542]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qa4 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Be4 11. Qc1 Nbd7 12. Ba5 Rc8 13. Nbd2 {E05: Open Catalan: 5 Nf3 Be7.} Ba8 14. Qc2 Qe8 15. b4 $1 {Prevents c5. White is slightly better.} (15. Bxc7 $2 Nd5 16. Rfc1 Rxc7 $19) 15... Nd5 16. a3 f5 17. Rac1 Qh5 18. Qd3 {[#]} Bd6 $146 ({Predecessor:} 18... N7f6 19. Ne5 Bd6 20. h3 Ne4 21. Ndf3 Ne7 22. Rfd1 Bd5 23. Re1 Qh6 24. e3 Ng6 {½-½ (32) Nilsson,E (2283)-Toenisson,P (2342) ICCF email 2011}) 19. e4 fxe4 20. Nxe4 (20. Qxe4 $2 Nf4 $1 {[%mdl 512]} 21. Qe3 Nxg2 22. Kxg2 Rf7 $19) 20... e5 ({Black should play} 20... N7f6 $14 21. Nfg5 Bf4 22. gxf4 Nxe4 23. Qxe4 Nxf4 24. Qxh7+ Qxh7 25. Nxh7 Ne2+ 26. Kh1 Bxg2+ 27. Kxg2 Kxh7 28. Rxc7 Nf4+ 29. Kh1 Nd3) 21. Nxd6 {White is more active.} ({White should try} 21. Nfg5 $1 $16) 21... cxd6 $14 22. Rxc8 Rxc8 23. dxe5 Nxe5 24. Nxe5 Qxe5 25. Qd2 (25. Rd1 $5 {[%cal Rg2d5]} Nc3 26. Bxa8 (26. Qxd6 Qe2 $11) 26... Rxa8 27. Qxd6 $16) 25... Qh5 26. Re1 {[%cal Bf1e1,Be1e6,Be6d6,Bd6d8][%mdl 32]} h6 27. h3 Kh8 (27... Qf5 $11 {remains equal.}) 28. Re6 $16 Nf6 29. Rxd6 Bxg2 30. Kxg2 Ne4 {[%csl LRd2,LRd6]} 31. Rd8+ Kh7 {[#]} (31... Rxd8 $16 {is a better defense.} 32. Qxd8+ Kh7) 32. Qf4 $1 $18 {Really sharp!} ({Don't play} 32. Qd5 $6 Qxd5 33. Rxd5 Rc3 $16) ({But not} 32. Qd3 $6 Qf5 33. Qf3 (33. Rxc8 Qxf2+ 34. Kh1 Qe1+ 35. Kh2 Qf2+ 36. Kh1 Qe1+ 37. Kh2 Qf2+ 38. Kh1 $11) 33... Qxf3+ 34. Kxf3 Ng5+ 35. Kg2 Rc6 $16) 32... Rc4 33. Bb6 {[%cal Ba5b6,Bb6d4,Bd4g7,Bg7e5][%mdl 32] Threatens to win with Bd4.} Qg6 34. Bd4 {Strongly threatening Qf8.} Ng5 {[#] White must now prevent ...Ne6.} 35. Rd6 $40 {[%mdl 128] White attacks with force.} Qd3 {[#]} (35... Qf7) 36. Bxg7 $1 {[%mdl 512] White is clearly winning.} Rxf4 (36... Qe4+ 37. Qxe4+) 37. Rxd3 Rf7 38. Be5 Ne4 39. f4 {Weighted Error Value: White=0.05 (flawless) /Black=0.36} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.18"]
[White "Dhananjay S"]
[Black "Gaikwad, Siddhant"]
[Result "1-0"]
[ECO "D97"]
[WhiteElo "2310"]
[BlackElo "2016"]
[Annotator "ChessBase"]
[PlyCount "65"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Nc6 8. Be2 Bg4 9. d5 Bxf3 10. gxf3 Na5 11. Qd3 c5 12. e5 c4 13. Qd1 Nd7 14. f4 Nc5 15. Be3 Rc8 16. O-O f6 17. Bg4 f5 18. Be2 a6 19. Na4 Nxa4 20. Qxa4 Qxd5 21. Rfd1 Qb5 22. Qxb5 axb5 23. Rd5 c3 24. bxc3 Nc4 25. Bd4 Bh6 26. Rxb5 Bxf4 27. a4 e6 28. Bxc4 Rxc4 29. Rxb7 Ra8 30. a5 Ra6 31. Rb6 Rc6 32. Rxc6 Rxc6 33. a6 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.19"]
[White "Praloy Sahoo"]
[Black "Divya Deshmukh"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2047"]
[BlackElo "2301"]
[Annotator "ChessBase"]
[PlyCount "69"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bxd7+ Bxd7 6. d4 cxd4 7. Qxd4 e5 8. Qd3 h6 9. c4 b5 10. Nc3 bxc4 11. Qxc4 Nf6 12. Qd3 Be7 13. Nd2 Be6 14. Nc4 Qc7 15. Ne3 O-O 16. b3 Rfc8 17. Bb2 Bf8 18. Kh1 Nd7 19. Rac1 Qb7 20. Ba3 Nc5 21. Bxc5 Rxc5 22. Na4 Rc6 23. Rxc6 Qxc6 24. h3 Rc8 25. Rd1 Be7 26. Nb2 Bh4 27. Kg1 Bg5 28. Nbc4 Bxe3 29. Nxe3 a5 30. Nf5 Bxf5 31. exf5 Qc2 32. Qf3 Qxa2 33. Rxd6 Qa3 34. Rd7 Qc1+ 35. Rd1 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.18"]
[Round "8.20"]
[White "Aaryan Varshney"]
[Black "Neelabh Jyoti Borthakur"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2277"]
[BlackElo "1780"]
[Annotator "ChessBase"]
[PlyCount "57"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Ne4 5. g3 Bb4 6. Qc2 c5 7. Bg2 cxd4 8. Nxd4 Qf6 9. Be3 O-O 10. O-O Nxc3 11. bxc3 Bc5 12. Nxe6 Bxe3 13. Nxf8 Bf5 14. Qb3 Bb6 15. c5 Kxf8 16. cxb6 axb6 17. Qxd5 Nc6 18. Rfd1 Kg8 19. Qd6 Be6 20. Bxc6 bxc6 21. Qxc6 Rc8 22. Qxb6 h5 23. a4 Qe5 24. Rd8+ Rxd8 25. Qxd8+ Kh7 26. Qd3+ Bf5 27. Qe3 Qa5 28. Qd4 Qa6 29. c4 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.1"]
[White "Krishna C R G"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2466"]
[BlackElo "2615"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,34,14,13,1,0,13,0,0,0,0,0,0,0,-4,0,0,12,-13,2,0,0,0,7]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 {The position is equal.} 8. Qb5 {E04: Open Catalan: 5 Nf3.} Bxd2+ 9. Nbxd2 c3 10. bxc3 Nxc3 11. Qc4 {11.Qb3 gains popularity.} Nd5 12. O-O O-O 13. Rfc1 {[#]} Nb6 $146 ({Predecessor:} 13... Qe7 14. e3 Rd8 15. Rab1 Ndb4 16. Qb3 a5 17. a3 a4 18. Qd1 Nd5 19. Ra1 Bd7 20. Nc4 Be8 21. Qc2 f6 22. Qb2 b5 23. Ncd2 Na5 {½-½ (41) Rodriguez Rodriguez,J (2353)-Rodriguez Hernandez,L (2314) Havana 2018}) 14. Qc3 Nd5 15. Qc4 {[%mdl 1024] White has compensation.} Nb6 16. Qc3 Nd5 17. Qc4 Nb6 {A balanced but interesting game.  Weighted Error Value: White=0.04 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.2"]
[White "Das, Sayantan"]
[Black "Fawzy, Adham"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2459"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,-3,3,0,5,-14,0,0,0,0,0,0,0,0,0,-38,-36,-39,40,32,40,37,38,-8,-2,-13,-12,-10,-13,-17,0,-25,0,-10,0,-23,-23,-23,-17,-125,-127,-199,-216,-295,-307,-306,-306,-354,-316,-313,-356,-363,-340,-368,-364,-364,-291,-357,-230,-469,-332,-579,-550,-2022,-1492,-5431,-5539,-5539,-5535,-29978,-29979,-29979,-29974,-29973,-29974,-29972,-29962]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Nf6 5. Qe2 e5 6. O-O {B31: Sicilian: 2...Nc6 3 Bb5 g6.} Bg7 $1 7. Bxc6 bxc6 8. Nxe5 {The position is equal.} O-O 9. d3 Re8 10. Nf3 d5 11. Bg5 Qb6 12. Bxf6 Bxf6 {[#]} 13. Re1 $146 ({Predecessor:} 13. e5 Bg4 14. d4 Bxf3 15. Qxf3 Bxe5 16. dxe5 Qxb2 17. Na3 Qxa3 18. Qe3 Rad8 19. f4 {0-1 (55) Smirin,I (2594)-Eljanov,P (2655) Netanya 2019}) 13... Rb8 ({Better is} 13... Bg4 $15) 14. Nbd2 $1 $14 Bg7 (14... Qxb2 $2 15. Rab1 $18) 15. Qe3 Be6 16. e5 (16. Rab1 $14) 16... c4 $11 17. Qxb6 Rxb6 18. dxc4 Rxb2 19. cxd5 Bxd5 20. h3 f5 21. c4 Be6 22. Reb1 {[#]} Rxd2 23. Nxd2 Bxe5 24. Kf1 {White is now going downhill.} (24. a3 $11 {keeps the balance.}) 24... Rd8 $17 {Black is more active.} ({Reject} 24... Bxa1 $6 25. Rxa1 Kf7 26. Rb1 $11) 25. Ke2 (25. Nf3 $17 {keeps fighting.} Bxa1 26. Rxa1) 25... Bc3 $19 26. Rd1 Rxd2+ 27. Rxd2 Bxc4+ ({Inferior is} 27... Bxa1 28. Rd8+ Kf7 29. Kd3 $17) 28. Kd1 {[#] Rd8+ is the strong threat.} Bxa1 {A strong pair of Bishops.} 29. Rd8+ Kf7 30. Rd7+ Ke6 31. Rxa7 h5 32. Ra8 c5 {[%cal Bc6c5,Bc5c4,Bc4c3][%mdl 32]} 33. f3 f4 {And now ...Bd4 would win.} 34. Kd2 $2 (34. a4 {was forced.}) 34... Kd6 {Hoping for ...Be6.} 35. Kc2 $2 (35. a4 {was necessary.}) 35... Be6 {aiming for ...c4.} 36. a4 c4 37. a5 Bf5+ 38. Kc1 Kc7 {( -> ...c3)} 39. a6 c3 {Black mates.} 40. Ra7+ Kb6 41. Rb7+ Kxa6 42. Rb3 Bb2+ {Weighted Error Value: White=0.81/Black=0.14 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.3"]
[White "Ponkratov, Pavel"]
[Black "Mirzoev, Azer"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2641"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,91,17,5,14,-31,-21,-4,-4,-47,-8,-22,-10,-56,10,6,72,70,76,58,60,29,88,8,5,5,8,-42,-50,-42,-41,-79,-77,-72,-53,-41,0,-8,0,0,0,0,0,0,0,0,0,-16,-7,-19,12,22,275,275,262,255,426,450,414,459,467,459,426,398,477,470,457,469,894,887,589,570,567,550,499,455,1146,1124,4702,1775,1981,1888,1062,975]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Bd7 5. Nf3 Qb6 6. Bd3 cxd4 {C02: French: Advance Variation.} 7. O-O (7. Nxd4 $11 {might be stronger.} Bc5 8. Qg4) 7... Nc6 $15 8. Re1 Nge7 {The position is equal.} 9. h4 (9. Nbd2 $11) 9... h6 10. a3 $5 {[%mdl 4] [#] Leaves trodden paths.} a6 $146 ({Predecessor:} 10... Rc8 11. b4 a6 12. Bb2 g5 13. Nh2 Bg7 14. Ng4 gxh4 15. cxd4 h5 16. Nf6+ Bxf6 17. exf6 {1-0 (26) Vachier Lagrave,M (2763)-Ponkratov,P (2659) Riga 2021}) 11. h5 (11. c4 $11) 11... Rd8 ({Black should try} 11... Rc8 $15) 12. b4 $11 Nc8 (12... dxc3 $11 {keeps the balance.} 13. Nxc3 Nd4) 13. Nxd4 $1 $16 {White is more active.} Nxd4 14. Be3 {[%mdl 64] Pin} Ne7 {[%cal Od8c8]} 15. cxd4 Nf5 (15... Rc8 $11 {remains equal.}) 16. Nc3 (16. Bxf5 $16 exf5 17. Nc3) 16... Nxe3 $11 17. fxe3 Be7 18. Qf3 (18. Na4 $11 Qa7 19. Nc5) 18... O-O $15 19. Rf1 Rc8 20. Ne2 Bb5 21. Rad1 Bxd3 22. Rxd3 Rc2 23. Nc3 $1 {Threatens to win with Qd1.} Qc6 24. e4 dxe4 $1 25. Nxe4 Rc1 26. Rxc1 Qxc1+ 27. Kh2 Rd8 28. Rd1 Qc6 29. Qf4 Rd7 30. Rd3 {[%cal Bd1d3,Bd3g3,Bg3c3,Bc3c8,Bc8e8][%mdl 32]} Kh8 $2 {[%mdl 8192] [#] Loses the game.} (30... Rc7 $11 {and Black stays safe.}) 31. Rg3 $1 $18 {[%cal Of4f7]} Qc8 (31... Bf8 {[#] gets mated.} 32. Nf6 $1 {[%mdl 512]} g5 33. hxg6 Bg7 34. gxf7) 32. Qxf7 $40 {[%csl Gg3][%cal Rf7g7][%mdl 128] White has strong attack.} Bh4 $2 {[#]} (32... Qf8 {is a better defense.} 33. Qxf8+ (33. Qxe6 Rxd4 34. Rf3 Qe8 $16) 33... Bxf8) 33. Rc3 $1 {[%mdl 512]} Rxf7 34. Rxc8+ {[%mdl 4096] Endgame KRB-KRN} Kh7 35. g3 Bg5 36. Re8 Rd7 37. Nc5 {White is clearly winning.} Rxd4 38. Nxe6 Re4 (38... Rd2+ $142 39. Kh3 Rd3) 39. Nf8+ Kg8 40. e6 {Ng6+ would kill now.} g6 41. Nxg6+ Kg7 42. e7 {Black must now prevent Rb8.} b5 (42... b6 $142 43. Rb8 Re2+ 44. Kh3 Bxe7 45. Rxb6 Bg5 46. Rxa6 Rb2) 43. Kg2 Bf6 44. Kf3 Re1 45. Kf4 Re2 46. Kf5 {Weighted Error Value: White=0.12 (very precise) /Black=0.38} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.4"]
[White "Saptarshi, Roy"]
[Black "Visakh N R"]
[Result "0-1"]
[ECO "C22"]
[WhiteElo "2402"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,49,0,0,0,8,-20,0,-3,-5,-99,-89,-70,-70,-112,-105,-162,-150,-170,-145,-161,-72,-218,-225,-191,-234,-249,-253,-462,-450,-458,-440,-487,-489,-453,-479,-554,-553,-578,-550,-456]} 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 g6 5. Bd2 Bg7 6. Nc3 Nf6 $1 7. O-O-O {C22: Centre Game.} O-O $1 8. Qg3 d5 9. exd5 {[#] The position is equal.} Nb4 $146 {Strongly threatening ...Bf5.} (9... Nxd5 $2 10. Bg5 f6 11. Bc4 $18) ({Predecessor:} 9... Nxd5 10. Bg5 Nce7 11. Nxd5 Nf5 12. Bxd8 Nxg3 13. Ne7+ Kh8 14. hxg3 Be6 15. Bxc7 Rfe8 16. Bd6 Rad8 17. Bb5 Rxe7 18. Bxe7 Bxb2+ 19. Kxb2 Rxd1 20. Be2 {1-0 (20) Perez Mitjans,O (2457)-Gerss,M (1849) Barcelona 2011}) 10. Bc4 (10. Nf3 $11 {keeps the balance.}) 10... Bf5 $17 (10... Nbxd5 $2 11. Bxd5 Nxd5 12. Bg5 $18) 11. Bb3 a5 $1 {[%cal Oa5a4]} (11... Nfxd5 $2 12. Nxd5 Nxd5 13. Bg5 $18) 12. a4 {[#]} (12. Qh4 $1 $15) 12... b5 $1 {...bxa4 is the strong threat. Black is more active.} (12... Nfxd5 13. Bg5 Qe8 14. Bxd5 $14 (14. Nxd5 Nxd5 15. Rxd5 b5 $16)) (12... Nbxd5 $2 13. Bxd5 Bxc2 14. Kxc2 $18 (14. Bxf7+ Rxf7 15. Kxc2 Nd5 $18)) 13. Nge2 (13. Nf3 $17) 13... bxa4 $19 14. Bxa4 Nfxd5 15. Nxd5 {aiming for Bg5.} Nxd5 (15... Na2+ $19 {has better winning chances.} 16. Kb1 Qxd5) 16. Bg5 {This costs White the game.} (16. Be3 $17) 16... Qb8 17. Qa3 Nb6 18. Bb3 Qb7 {Threatens to win with ...Rab8.} 19. f3 $2 {[#]} (19. Be3) 19... a4 {Black is clearly winning.} 20. Ba2 Be6 ({Weaker is} 20... Qc6 21. c3 $17) 21. Bxe6 fxe6 22. Qa2 {To avoid Nc4} Nd5 {Prevents Nf4.} 23. Rd3 Rfb8 24. c3 c5 25. Rhd1 {Weighted Error Value: White=0.47/Black=0.06 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.5"]
[White "Karthikeyan, P.."]
[Black "Deepan Chakkravarthy J."]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2396"]
[BlackElo "2520"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,29,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 {[%cal Bd2d4,Bd4e5][%mdl 32]} Nd6 6. dxe5 Nxb5 7. a4 Nbd4 8. Nxd4 Nxd4 9. Qxd4 d5 10. exd6 Qxd6 11. Qe4+ Qe6 12. Qd4 Qd6 13. Qe4+ Qe6 14. Qd4 Qd6 15. Qe4+ {Not much happened in this game. C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.6"]
[White "Sidhant, Mohapatra"]
[Black "Tahbaz, Arash"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2359"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,85,35,21,31,27,33,0,0,-2,-13,-72,-63,-64,-62,-73,0,-92,-86,-103,-110,-125,-109,-120,-119,-148,-101,-117,41,17,36,0,0,0,0,0,52,54,33,0,0,0,173,109,256,229,187,42,393,393,662,170,163,162,137,86,372,403,6705,6689,1306,150,902,902,29976,29977,29991,29992,29992,29992]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f3 Be7 10. h4 h6 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7.} 11. Be3 h5 {Inhibits g4.} 12. Kb1 $1 {[%mdl 4] is recently more successful than 12.Bg5.} Ne5 {The position is equal.} 13. f4 Neg4 14. Bg1 (14. Be2 $11) 14... b5 $1 $17 {White must now prevent ...b4.} 15. Bd3 Qc7 {[#]} (15... b4 $5 16. Nce2 a5 $11) 16. Nce2 $146 ({Predecessor:} 16. Re1 b4 17. Nd1 Rb8 18. Ne3 a5 19. b3 a4 20. Nxg4 Nxg4 21. Bc4 O-O 22. Nf3 {0-1 (42) Balashov,Y (2455)-Sargsyan,S (2642) Cheliabinsk 2021}) 16... e5 ({Black should play} 16... O-O $17) 17. Nf3 (17. Nf5 $11 {remains equal.}) 17... O-O 18. Ng3 a5 19. f5 b4 20. Nh2 Nxh2 $1 21. Rxh2 a4 (21... d5 $142 22. exd5 a4) 22. Be3 (22. Qxb4 Rfb8 23. Qa3 Qb7 $19) 22... b3 $2 ({Better is} 22... d5 $17 {And now ...Rfd8 would win.} 23. Bg5 (23. exd5 $2 e4 $19) 23... a3 24. Bxf6 Bxf6) 23. Bg5 $14 bxc2+ 24. Bxc2 {Hoping for Bxf6.} (24. Qxc2 {keeps more tension.} Qxc2+ 25. Bxc2 Rfb8 26. Rh3 Kf8 27. Bxf6 Bxf6 28. Nxh5 Be7 29. g4) 24... Rfb8 25. Bxf6 Bxf6 26. Nxh5 Rb6 (26... Be7 $11) 27. Nxf6+ (27. Rh3 $5 {[%cal Rh5f6]} Rab8 28. Nxf6+ gxf6 29. b3 axb3 30. Bxb3 $14) 27... gxf6 28. Ka1 {Threatens to win with Rh3.} (28. Rh3 $5 {[%cal Rd2h6]} Rab8 29. b3 axb3 30. Bxb3 $14) 28... Rab8 29. Rb1 {aiming for Rh3.} Kf8 $2 (29... a3 $11 30. b3 (30. bxa3 Rxb1+ 31. Bxb1 Rxb1+ 32. Kxb1 Qb6+ 33. Kc2 Ba4+ 34. Kc3 Qc5+ 35. Kb2 Qb5+ 36. Qb4 Qe2+ 37. Kb1 Qd1+ 38. Kb2 Qe2+ 39. Ka1 Qd1+ 40. Kb2 Qe2+ $11) 30... d5) 30. g4 (30. a3 $18) 30... Qc5 (30... a3 $16 31. b3 (31. bxa3 Ba4 $14) 31... Rc8) 31. g5 $18 {[%cal Bg4g5,Bg5f6][%mdl 32]} a3 32. b3 (32. gxf6 $18 {White wants to mate with Qh6+.} axb2+ 33. Rxb2 $3 {[%mdl 512]}) 32... Rb4 $2 {[%mdl 8192]} (32... Bxf5 $1 $14 33. gxf6 (33. exf5 $2 e4 $17) 33... Bh7) 33. gxf6 {Intending Qh6+ and mate.} Bc6 $2 (33... Ke8 34. Rc1 Rd4) 34. Rh3 $2 (34. Rc1) 34... Bxe4 35. Bxe4 $40 {[%mdl 128] White attacks with force. Chess con chili.} Rxe4 36. Rd3 ({Much worse is} 36. Qh6+ $6 Ke8 37. Qd2 (37. Qh8+ {leads to mate.} Kd7 38. Rd3 Rxh8 39. Rbd1 Rd4 40. Kb1 Rc8 41. R3d2 Rxd2 42. Rh1 Qc2+ 43. Ka1 Qxa2#) 37... Re2 $1 38. Qxe2 Qd4+ 39. Rb2 axb2+ 40. Qxb2 Qd1+ 41. Qb1 Qd4+ 42. Qb2 Qd1+ 43. Qb1 Qd4+ 44. Qb2 $11) (36. Rg3 $142 $1 {Strongly threatening Rc1.} Rxh4 37. Rc1 Qd4+ 38. Qxd4 exd4 39. b4) 36... Ke8 $2 {[%mdl 8192]} (36... Rg4 $16 {was called for.}) 37. Rc1 Qb4 (37... Re2 $142 38. Qg5 (38. Rxc5 Rxd2 39. Rxe5+ dxe5 $16) 38... Rc2 39. Qg8+ Kd7 40. Qxf7+ Kc8 41. Rxc2 Qxc2 42. Qe6+ Kb7 43. Qd7+ Qc7 44. Rxd6 Qxd7 45. Rxd7+ Kc6) 38. Qg2 d5 39. Qc2 $2 (39. h5 $18 {White threatens h6 and mate.} Rd8 {[#]} 40. Rxd5 $3 {[%mdl 512]} Qc3+ 41. Kb1 Qb2+ 42. Qxb2 axb2 43. Rxd8+ Kxd8 44. Rh1) 39... Qd6 $2 (39... Rc4 $16 40. bxc4 Qb2+ 41. Qxb2 axb2+ 42. Kb1 bxc1=N+ 43. Kxc1 dxc4) 40. Rg3 {[%cal Bd3g3,Bg3g7,Bg7f7,Bf7e7][%mdl 32]} Kd7 41. Rg7 {White mates.} Rf8 {[#]} 42. Rxf7+ $1 {[%mdl 512]} Ke8 43. Re7+ {Weighted Error Value: White=0.56/Black=0.90} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.7"]
[White "Rios, Cristhian Camilo"]
[Black "Dhananjay S"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "2449"]
[BlackElo "2310"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,135,5,12,15,13,9,20,0,-20,-20,-16,-44,-34,-34,-45,-39,-25,-25,-25,-35,-10,-24,-10,-32,-30,-27,-16,-42,0,5,20,22,25,0,0,0,0,0,0,0,0,0,8,8,8,0,0,0,522,522,521,514,506,432,578,550,587,487,533,445,2884,1279,3168,3168,3168,3168,2952,2714,2972,3161,3168,3168,5073,2985,2972,2972,2979,2985,2992,2952,2952,2937,2937,2937,2937,0,2945,0,2923,2944,2784,2040,1460,1378,654,431,431,431,431,431,431,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. Qb3 h6 7. Bh4 {D43: Semi-Slav: 5 Bg5 h6.} dxc4 8. Qxc4 a6 9. e4 {The position is equal.} b5 10. Qd3 c5 11. dxc5 Bxc5 12. Be2 {[#]} Bb7 $146 ({Predecessor:} 12... b4 13. Na4 Be7 14. e5 Nd5 15. Bxe7 Qxe7 16. Rc1 Bb7 17. Qd4 O-O 18. O-O Rfc8 {½-½ (44) Mishra,A (2517)-Park,E (2168) Charlotte 2021}) 13. a3 Be7 14. Rd1 O-O 15. O-O Qb6 (15... Re8 {is interesting.} 16. Qd2 e5 17. Bg3 Qc7 18. Rc1 Rad8) 16. e5 Bxf3 (16... Nc5 $2 17. Qc2 $18) 17. exf6 Bxe2 18. Qxd7 Bxf6 19. Bxf6 Bxd1 (19... Bxf1 $15 20. Bd4 Qb8 21. Kxf1 (21. Rxf1 $2 Rd8 $19) 21... Qxh2) 20. Bd4 $11 Qa5 {[#] Strongly threatening ...Bc2.} 21. Rxd1 Rad8 22. Qb7 Rd6 {[%cal Oe6e5]} 23. Qe4 Rfd8 24. f4 b4 25. axb4 Qxb4 26. Ne2 Rxd4 27. Nxd4 $40 {[%mdl 128] [#] Black must now prevent b3. White is up to no good.} Qxb2 28. Kf1 a5 29. Qe2 Rxd4 $4 {[%mdl 8192]} 30. Qxb2 $18 Rxd1+ $11 {[%mdl 4096] Endgame KQ-KR} 31. Ke2 Rd5 32. g4 h5 33. h3 hxg4 34. hxg4 g6 35. Qf6 Rb5 (35... a4 $142 36. Qe7 Kg7) 36. Kd3 $18 Rd5+ 37. Kc4 Rd1 38. Kb5 Rd5+ 39. Kb6 a4 40. Qa1 Rd3 41. Qxa4 Rd5 42. Qa1 Rd3 43. Kc6 Rd5 44. Qc3 Rd1 45. Qf6 Rd3 46. Kc5 Rd5+ 47. Kc4 {[%cal Of4f5]} Rd1 48. Kc5 Rd5+ 49. Kc6 {[%cal Of4f5] Threatens to win with f5!} Rd3 $1 50. Qb2 Rd1 51. Qc3 Rd8 52. Qg3 {f5 is the strong threat.} Rd1 53. f5 exf5 54. gxf5 {Intending Qb8+ and mate.} Rf1 55. Qb8+ Kh7 56. fxg6+ fxg6 {White is winning.} 57. Kd6 Rd1+ 58. Ke5 Re1+ 59. Kf4 {aiming for Qa7+.} Rf1+ 60. Kg3 Rf5 61. Qc7+ Kg8 62. Kg4 Kh8 63. Qd8+ Kg7 64. Qb8 Kh7 65. Qh2+ Kg7 66. Qh4 Rf7 67. Qg5 Rf5 68. Qxf5 $2 {Weighted Error Value: White=0.15 (very precise) /Black=0.38} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.8"]
[White "Aaryan Varshney"]
[Black "Shyaamnikhil P"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2277"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,60,21,7,12,0,-2,-2,11,12,34,4,31,0,4,-6,10,0,11,0,16,0,0,0,0,13,0,14,8,0,0,0,0,0,0,0,0,-23,35,26,41,33,50,50,64,21,21,22,37]} 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5+ {[%cal Bc1g5,Bg5h4,Bh4g3,Bg3h2][%mdl 32]} f6 8. O-O-O+ Ke8 {A41: 1 d4 d6: Tartakower System and Modern Defence.} 9. Bh4 Be6 10. e3 g5 11. Bg3 {[#]} Ne7 $146 ({Predecessor:} 11... Nh6 12. Be2 Nf7 13. Nd2 h5 14. f4 h4 15. Bf2 g4 16. Nde4 Na6 17. c5 f5 {1-0 (41) Mattick,L (2292)-Berger,S (2410) Berlin 2008}) 12. h3 h5 13. Bd3 Nf5 14. Bh2 c6 15. Nd2 Nd7 16. Nde4 Bf8 {[%cal Bg7f8,Bf8d6,Bd6c7,Bc7b6][%mdl 32]} 17. g4 Nd6 18. Nxd6+ Bxd6 19. Bf5 Ke7 20. Ne4 Bc7 21. Bg3 Rad8 22. b3 Bxf5 23. gxf5 h4 24. Bh2 Bb6 25. b4 {Prevents Nc5. And now Rd6 would win.} Nb8 ({Black should try} 25... Bc7 $11) 26. Kc2 $14 Rhg8 27. Rhg1 Na6 28. a3 Nb8 29. Rd3 {White is more active.} (29. Rxd8 $14 {is superior.} Bxd8 30. f4) 29... Rxd3 $11 30. Kxd3 Rd8+ {Weighted Error Value: White=0.09 (flawless) /Black=0.11 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.9"]
[White "Nitin, S.."]
[Black "Kaustuv, Kundu"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2427"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "199"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,199,42,40,35,62,55,45,28,38,20,28,34,58,39,40,33,59,33,52,37,41,0,0,0,41,33,40,32,61,54,68,65,66,60,66,63,78,52,79,58,63,66,89,86,78,77,96,62,77,76,78,77,78,78,78,78,78,71,71,71,78,78,78,71,78,78,95,90,102,104,102,95,95,77,100,95,97,98,97,92,91,25,39,21,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,220,227,173,181,181,181,181,232,232,232,232,232,232,232,179,179,179,232,232,232,232,263,232,248,220,226,179,179,179,300,290,452,179,266,213,252,256,267,259,522,375,321,293,544,544,544,544,537,496,496,0,510,496,462,440,416,411,552,550,523,504,1511,481,332,0,1579,1513,1414,1313,1217,1143,996,933,932,852]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 O-O 9. Qd6 {B45: Sicilian Four Knights.} Ne8 $1 10. Qg3 d5 11. exd5 {White is slightly better.} exd5 12. Bd3 Qe7+ 13. Ne2 {[#]} Ne5 $146 ({Predecessor:} 13... Nd4 14. Qe3 Qxe3 15. Bxe3 Nf5 16. Bxf5 Bxf5 17. Bc5 Bxc2 18. Bxf8 Kxf8 19. O-O Bd3 {1-0 (43) Andrzejewska,A (1933)-Stochnialek,D (1706) Sypniewo 2021}) 14. O-O Nxd3 15. Qxd3 Nf6 {[%cal Oc8f5]} 16. Bg5 h6 17. Bxf6 (17. Bh4 {is more complex.} Re8 18. Nc3 Be6 19. Nb5 Rad8 20. Nxa7 g5 21. Bg3) 17... Qxf6 18. Qc3 (18. Qxd5 Qxb2 19. Nd4 Bg4 $11) (18. c3 $14) 18... Qxc3 $11 19. Nxc3 Rd8 (19... Bf5 $11) 20. Nb5 Be6 21. Nd4 Rac8 22. Rfe1 Rd6 23. c3 g6 24. Re2 Kg7 25. Rae1 Kf6 26. Re3 a6 27. f3 Rb6 28. R1e2 Rd8 29. Kf2 h5 30. h4 Rc8 31. Ke1 Rg8 32. Re5 Rc8 33. Kf2 a5 34. Kg3 a4 35. Kf4 Rh8 36. g3 {[%cal Bg2g3,Bg3g4][%mdl 32]} Rh7 37. Rh2 Rh8 38. Re1 Bd7 39. Ree2 Ra6 40. Rhf2 Be6 41. g4 Ke7 42. Kg3 Kd6 43. Re3 Raa8 44. Rfe2 {[%cal Rd4e6]} Bd7 45. Re7 hxg4 46. Rxf7 {White is much more active.} (46. fxg4 Rh7 $14) 46... gxf3 47. Rf6+ ({Don't play} 47. Kxf3 $6 Raf8 48. Rxf8 Rxf8+ 49. Ke3 Rh8 $11) 47... Kc5 48. Nxf3 {Chess con chili.} ({Better is} 48. Re7 $16 Raf8 49. Rxf3 (49. Rxf8 Rxf8 50. Nxf3 Kd6 $14)) 48... Raf8 $1 49. Rxg6 Rxf3+ $2 {Black is on the road to losing.} 50. Kxf3 $18 Rxh4 $14 {[%mdl 4096] Endgame KRR-KRB} 51. Rd2 Bc6 52. Ke3 {Prevents d4+.} Rh3+ 53. Kf4 Rh4+ 54. Rg4 Rh1 55. Kg5 Re1 56. Rf4 Re3 57. Kf6 Re1 58. Rb4 Rf1+ 59. Ke5 Re1+ 60. Kf4 Rf1+ 61. Ke3 Rh1 62. Rf2 Rh3+ 63. Kd2 Bb5 64. c4 Bxc4 65. Rxa4 b5 66. Ra8 ({But not} 66. Rb4 d4 67. Kc2 Bd3+ 68. Kc1 Rh1+ 69. Kd2 Rh3 $16) 66... b4 (66... Rb3 $142) 67. Rc8+ $18 Kd4 68. axb4 Rb3 69. Kc2 Rxb4 70. Rf3 {To avoid Bd3+} Rb6 71. Rh8 Rg6 (71... Re6 $142 72. Rh2 Re5) 72. Rh4+ Kc5 73. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Be2 74. Rc3+ Kd6 75. Re3 Rg2 76. Kc3 {Hoping for b4.} Kc5 77. Rd4 {And now b4+ would win.} Bg4 (77... Ba6 {was worth a try.} 78. b4+ Kd6) 78. b4+ Kd6 (78... Kc6 $142 79. Rf4 Bd7) 79. Rd2 $2 (79. Rf4) 79... Rg1 (79... Rxd2 {might work better.} 80. Kxd2 Kc6) 80. Kb2 Bf5 81. Rc3 Be4 82. Kb3 {Strongly threatening b5.} Ke5 $2 (82... Bf5 83. Rc5 Be4) 83. Rc5 Kd6 84. Ka4 Rb1 $2 (84... Rg8 {keeps fighting.} 85. Ra5 Rg1) 85. Kb5 Ke5 86. Ka5 Kd6 87. Rc3 Bf5 88. Rc5 $2 ({White should play} 88. Rc4 $18 Rb3 89. Rh4) 88... Be6 $2 {[%mdl 8192]} (88... Be4 $11 {and Black stays safe.} 89. Rc4 Bg6) 89. Rcc2 Bd7 90. Rb2 {To avoid Rb3} Ra1+ 91. Kb6 Ra8 92. b5 {Prevents Bc6.} Rb8+ 93. Ka6 Bc8+ (93... Ra8+ $142 94. Kb7 Rh8) 94. Ka5 (94. Ka7 $142) 94... Bf5 95. Ka6 $2 (95. Rd1) 95... Bc8+ $1 {[#]} 96. Ka7 $1 {White is clearly winning.} Rb7+ {[#]} 97. Ka8 $1 {Rdc2 is the strong threat.} Rb6 98. Rh2 {Threatens to win with Rh6+.} Ke5 99. Rh7 Bf5 100. Rh5 {Weighted Error Value: White=0.08 (flawless) /Black=0.11 (very precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.10"]
[White "Ratnakaran, K.."]
[Black "Gholami Orimi, Mahdi"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2316"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "209"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,209,6,28,25,28,32,32,13,31,32,29,29,23,27,36,25,30,-20,37,37,37,34,28,31,33,31,32,10,32,31,38,24,26,0,0,0,43,43,43,32,31,43,29,28,30,37,41,28,69,28,37,35,41,39,35,18,23,11,9,6,6,6,6,6,12,9,13,12,13,19,44,7,7,7,7,7,7,7,7,7,13,13,13,8,13,0,13,0,13,13,13,7,7,7,7,7,7,7,7,7,7,7,7,6,7,7,7,7,7,7,20,23,22,28,68,68,127,127,127,127,127,127,127,0,127,127,127,127,127,127,127,127,127,0,127,13,14,14,14,14,14,8,8,8,8,8,18,18,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,5093,5081,1132,580,29982,407,310,310,310,310,310,269,269,338,331,269,269,272,286,204,188,188,29984,29985,29985,29986,29986,29987,29987,29988,29989,29990,29990,29990]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. Nc3 d6 6. a3 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} g6 7. h3 Bg7 8. Be3 {White is slightly better.} Be6 9. Bxe6 fxe6 10. Ne2 {[%cal Bc3e2,Be2g3,Bg3f1,Bf1h2,Bh2g4][%mdl 32] [#]} Nh5 $146 ({Predecessor:} 10... O-O 11. Ng3 Qe8 12. Qe2 {½-½ (12) Franzoni,G (2445)-Ekstroem,R (2435) Switzerland 1995}) 11. c3 Qd7 12. a4 a5 13. g4 (13. Qb3 $142) 13... Qf7 14. gxh5 $14 {Strongly threatening Ng3.} Qxf3 15. Ng3 Qxd1+ 16. Kxd1 g5 17. Ke2 Bf6 18. Rag1 Kf7 19. Nf1 Rab8 20. Nh2 b5 21. axb5 Rxb5 22. Bc1 Ne7 (22... a4 $11 {is more appropriate.}) 23. Ng4 {[%cal Oh3h4] And now h4! would win.} Ng8 $1 24. Rg3 Be7 25. Rf3+ Ke8 26. Kd1 Rh7 27. Kc2 c5 28. Bd2 Bd8 (28... Rb7 $11) 29. Ra1 {White is more active.} (29. Ne3 $14) 29... Rbb7 $11 30. Ra3 Rhf7 31. Rxf7 Rxf7 32. b4 cxb4 33. cxb4 Rc7+ 34. Kd1 axb4 35. Bxb4 Be7 36. Ra6 Rd7 37. Ke2 Kf7 38. d4 exd4 39. e5 {[%cal Re5d6]} d5 40. Bxe7 Kxe7 $14 {[%mdl 4096] Endgame KRN-KRN} 41. Kd3 Rd8 42. Kxd4 Rd7 43. Kd3 Rd8 44. Nh2 Rf8 {Prevents Nf3.} 45. Ra7+ Ke8 46. Ng4 Rf4 47. Rb7 Kf8 48. Rb6 Kf7 49. Ke2 Ke7 50. f3 Kf7 51. Ra6 Ke7 52. Kf2 Kf7 53. Kg3 {Hoping for h4.} Rb4 54. Ra7+ Kf8 55. Rh7 d4 56. Rd7 Ke8 57. Rd6 {[%cal Og4h6] Threatens to win with Nxh6!} Ke7 58. h4 gxh4+ 59. Kxh4 Ra4 60. Kg3 Kf7 61. Kf4 Rb4 62. Ke4 Ke7 ({Black should try} 62... Rb1 $14) 63. Rxd4 $16 Rb1 64. Ra4 Re1+ 65. Kd4 Rd1+ 66. Ke4 Re1+ 67. Kf4 Rh1 68. Kg3 {Prevents Rh3+.} Kf7 69. Ra7+ Kf8 70. Kg2 Rh4 71. Kg3 Rh1 $1 72. Nh2 (72. Kf2 $16) 72... Ne7 $11 73. Kg2 Rb1 74. Ng4 Nf5 75. Nf6 Rb2+ 76. Kh3 Rb3 77. Kg4 Rb4+ 78. Ne4 Rb5 79. Kf4 Rb1 80. Ra6 Ke7 81. Ra7+ Kf8 82. Kg4 Rh1 {[%csl Gf5][%cal Rh1h4]} 83. f4 Rh4+ 84. Kf3 Nd4+ 85. Ke3 Nf5+ 86. Kd3 ({Don't play} 86. Kf3 Rxh5 87. Nc5 Rh3+ 88. Kf2 Ng7 $14) 86... Rxf4 87. Nc5 Rd4+ 88. Kc3 Rd5 $2 {[%mdl 8192] This move loses the game for Black.} (88... Kg8 $11) 89. Nd7+ $18 ({Less strong is} 89. Nxe6+ Kg8 $14) 89... Rxd7 90. Rxd7 {KR-KN} Ng7 {[#]} 91. Rd8+ (91. Rxg7 $142 $1 {[%mdl 512]} Kxg7 92. Kb4 Kf8 93. Kc5 Ke7 94. Kc6 Kf8 95. Kd6 Kf7 96. Kd7) 91... Kf7 92. Rh8 Nxh5 93. Rxh6 Ng7 94. Kc4 Nf5 95. Rf6+ Ke7 96. Kc5 Ne3 97. Rf4 {Inhibits Ng4.} Nf5 98. Kc6 Nh6 99. Rd4 {Threatening mate with Rd7+.} Nf7 $2 (99... Nf5 $18 100. Rd7+ Kf8) 100. Rd7+ $1 {White mates.} Ke8 {[#]} 101. Rxf7 $1 {[%mdl 512]} Kxf7 102. Kd7 Kf8 103. Kxe6 Ke8 {[#]} 104. Kd6 $1 Kf7 105. Kd7 {Weighted Error Value: White=0.05 (flawless) /Black=0.05 (flawless)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.11"]
[White "Gusain, Himal"]
[Black "Aradhya, Garg"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2408"]
[BlackElo "2236"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,138,17,26,14,10,7,7,0,9,4,4,0,30,0,12,0,10,13,28,40,41,33,32,49,50,29,18,18,70,17,32,9,7,10,14,5,7,5,0,-39,-32,-31,-19,-14,-24,-23,-16,-18,0,0,0,0,0,-17,0,0,0,0,0,0,0,-32,-26,-25,0,0,0,0,0,-5,-6,-6,-12,-11,0,-154,-154,-145,-145,-145,-135,-466,-464,-436,-418,-411,-378,-491,-473,-452,-411,-409,-409,-839,-716,-683,-647,-500,-494,-2832,-4331,-2907,-2363,-1913,-1699,-1586,-1470,-4659,-4659,-4656,-4641,-4634,-4627,-1152,0,0,0,0,0,0,0,0,-8,-29982,-29983,-29985,-29986,-29986,-29987,-29987,-29988]} 1. b3 e5 2. Bb2 Nc6 3. c4 Nf6 4. e3 a5 5. a3 Be7 6. Nc3 {A01: Nimzowitsch-Larsen Opening.} d5 7. cxd5 Nxd5 8. Qc2 {[#] The position is equal.} Nxc3 $146 ({Predecessor:} 8... O-O 9. Nf3 Nb6 10. Bb5 f6 11. h3 Be6 12. O-O Qe8 13. d4 exd4 14. Bxc6 Qxc6 15. Nxd4 {½-½ (42) Wegerer,F (2215)-Detter,P (2170) Austria 1999}) 9. Bxc3 O-O 10. Nf3 Bf6 11. Be2 (11. Bd3 $5 {[%cal Rd3h7]}) 11... Re8 12. d3 Be6 13. O-O Qd7 14. Qb2 Bf5 15. Rfd1 h6 16. h3 Qd6 17. Rac1 Be6 18. Nd2 Be7 (18... Qd7 $11) 19. Ra1 (19. Nc4 $14 Bxc4 20. bxc4) 19... b5 {Threatens to win with ...b4.} 20. b4 axb4 21. axb4 {[%cal Od2c4]} Bd5 {To avoid Nc4} (21... Nxb4 $2 22. Ne4 (22. Bxe5 Nxd3 23. Qxb5 Qxe5 $17) 22... Qd5 23. Bxb4 $18) 22. Ne4 Qe6 23. Be1 Ra4 24. Nc5 Bxc5 25. bxc5 ({Avoid the trap} 25. Rxa4 $2 Bd4 $1 {[%mdl 512]} 26. exd4 bxa4 27. dxe5 Nxe5 $19) 25... Rea8 {Hoping for ...Ra2.} 26. Rxa4 bxa4 27. Ra1 Qg6 {[%csl Gd5][%cal Rg6g2]} 28. Bf1 f5 29. Bc3 Rb8 30. Qd2 Ra8 31. Bb2 Qf7 32. d4 exd4 33. exd4 f4 34. f3 Ne7 35. Bb5 Bb3 36. d5 Nxd5 37. Bc6 $1 Ra6 38. Bb5 {A strong pair of Bishops.} Rg6 39. Bxa4 Bxa4 40. Rxa4 Qf5 {...Ne3 is the strong threat.} 41. Re4 c6 42. Be5 $2 (42. Re8+ $11 Kh7 43. Bd4) 42... Qxh3 $1 $17 43. Bxf4 Qxf3 $1 44. Re8+ Kf7 {Black is more active.} 45. Rd8 {[%mdl 8192]} (45. Re1 $17) 45... Qxf4 $19 ({Much less strong is} 45... Nxf4 46. Qd7+ Kf6 47. Rf8+ Ke5 48. Re8+ Ne6 {[#]} 49. Rxe6+ $1 {[%mdl 512]} Rxe6 50. gxf3 $18) 46. Rxd5 Qxd2 47. Rxd2 {[%mdl 4096] Endgame KR-KR} Rg5 48. Rc2 Rf5 49. Kh2 h5 50. Kh3 g5 51. Rc3 (51. g4 $142 Rf3+ 52. Kg2 hxg4 53. Kh1) 51... Re5 52. Kg3 Ke6 53. Kf3 Kd5 {And now ...Kd4 would win.} 54. g3 (54. Rc1 $142 Kd4 55. Rh1) 54... Kd4 55. Rc1 Rxc5 56. Rd1+ Ke5 57. Rh1 Rc3+ 58. Kf2 Kf5 59. Rxh5 Kg4 60. Rh1 Rf3+ 61. Ke2 Kxg3 $2 (61... c5 $19 {aiming for ...c4.} 62. Rc1 Rf5) 62. Rg1+ $11 Kf4 63. Rxg5 $1 Kxg5 64. Kxf3 {KP-K} Kf5 {[%cal Bg5f5,Bf5e5,Be5d4,Bd4c3][%mdl 32]} 65. Ke3 $1 Ke5 66. Kd2 $2 {[%mdl 8192]} (66. Kd3 $11) 66... Kd4 {Black mates.} 67. Ke2 Kc3 68. Kd1 c5 {[%cal Bc6c5,Bc5c4][%mdl 32]} 69. Kc1 c4 {Weighted Error Value: White=0.53/Black=0.07 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.12"]
[White "Karthik Venkataraman"]
[Black "Arnav Maheshwari"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2485"]
[BlackElo "1934"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,59,20,0,25,31,76,87,139,103,141,139,209,219,218,211,212,203,515,249,254,244,276,273,264,280,254,195,177,149,289,286,593,532,726,718,754,764,785,614,1193,1168]} 1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 e6 5. Qc2 Nbd7 6. d4 Bd6 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O e5 10. h3 Qe7 11. a3 a6 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} 12. Ba2 c5 {[#]} (12... Bc7 $14 {is more appropriate.}) 13. Ng5 $146 ({Predecessor:} 13. dxc5 Bxc5 14. Ng5 g6 15. Nce4 Nxe4 16. Nxe4 Ba7 17. Bd2 Nc5 18. Bb4 b6 19. Nxc5 bxc5 {1-0 (36) Jelen,I (2368)-Buzeti,J (2271) Ljubljana 2012}) 13... exd4 ({Better is} 13... h6 14. Nd5 Qd8) 14. Nd5 Qd8 15. exd4 {White is much more active. Black has bad knights.} cxd4 {[#]} (15... c4 $16) 16. Rd1 $1 $18 h6 {[#]} 17. Rxd4 $1 {Black must now prevent Nxf6+.} hxg5 (17... Qe8 18. Nf3) 18. Bxg5 {And now Rad1 would win.} Re8 $2 (18... a5 {is tougher.} 19. Rad1 Ra6) 19. Nxf6+ (19. Rad1 $142) 19... Nxf6 20. Qd2 Qc7 {Hoping for ...Ne4.} 21. Bxf6 (21. Rxd6 Ne4 22. Rd8 Nxd2 $14) 21... Bh2+ 22. Kh1 {Threatening mate with Qg5.} gxf6 23. Rc1 (23. g3 $6 Bf5 24. Kxh2 Rad8 $16) 23... Qe5 24. f4 Qh5 {[#]} (24... Bxf4 $16 {was called for.} 25. Rxf4 (25. Qxf4 Qxf4 26. Rxf4 Be6 $14) 25... Qe3 26. Qxe3 Rxe3 27. Rxf6 Be6) 25. Rc3 $1 ({Inferior is} 25. Kxh2 Bxh3 26. Rd5 (26. Bxf7+ $2 Kxf7 27. Rc7+ Kg8 $19) 26... Bf5+ 27. Kg1 Qg4 $15) 25... Bf5 $2 (25... Re2 26. Qc1 Bf5) 26. Kxh2 {White is clearly winning.} Re2 27. Qd1 Rae8 28. Bc4 Kh7 29. Bxe2 Rxe2 30. Rd2 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.27 (precise) /Black=0.88} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.13"]
[White "Stany, G.A."]
[Black "Priyanka, Kumari"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2517"]
[BlackElo "1910"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,61,31,19,22,36,32,34,17,39,41,37,9,74,16,45,0,0,0,0,10,57,51,51,49,120,127,167,166,164,171,362,373,403,417,423,430,542,529,568,545,792,783,5134,2645,29985,29986,29986,188,29987,29988,29988,29989,29989,29961]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Qd3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} e5 7. Nf5 Bxf5 8. exf5 {White is slightly better.} d5 9. Bg5 {Bxf6 is the strong threat.} d4 10. Ne4 {[#]} Qb6 $146 (10... Nbd7 $11 {keeps the balance.}) ({Predecessor:} 10... Nbd7 11. Be2 Qa5+ 12. Bd2 Qb6 13. O-O Nc5 14. Nxc5 Bxc5 15. b4 Be7 16. Bf3 O-O {1-0 (48) Najer,E (2670)-Zakhartsov,V (2486) St Petersburg 2018}) 11. O-O-O {Active counter play!} (11. Bxf6 $16 {And now Bg5 would win.} gxf6 12. Qb3 Qxb3 13. axb3) 11... Nbd7 12. f4 (12. Bxf6 $5 gxf6 13. Qb3 $11) 12... Nxe4 13. Qxe4 f6 14. Bh4 $1 {[%cal Bg5h4,Bh4f2,Bf2d4,Bd4f6,Bf6g7][%mdl 32]} Nc5 (14... O-O-O $11 {should be considered.}) 15. Qd5 {aiming for Bc4.} Rd8 16. Qc4 {Black must now prevent Be2.} e4 {White stays focused until the end.} (16... Qc7 $14) 17. Be2 $16 {Hoping for Bf2.} h5 18. Kb1 Qd6 19. Bf2 {[%cal Rd1d4]} Qxf4 $2 (19... b5 20. Qxd4 Qxd4 21. Bxd4 (21. Rxd4 Rxd4 22. Bxd4 Kd7 $16) 21... Rc8) 20. Bxd4 $18 b5 21. Qc3 Qxf5 22. Rhf1 Qc8 {[#]} 23. Bxf6 {[%mdl 512] Qe5+ would kill now. This bishop pair is nice.} Rxd1+ (23... Nd7 24. Bxg7) 24. Bxd1 Qe6 25. Bxg7 Na4 {[#]} 26. Bxh5+ $1 {[%mdl 512]} Rxh5 (26... Kd7 27. Qd4+) 27. Rxf8+ Ke7 28. Qc7+ Qd7 {[#]} 29. Rf7+ $1 {[%mdl 512] White mates.} Kxf7 30. Qxd7+ Kg6 31. Qe8+ {Weighted Error Value: White=0.09 (flawless) /Black=0.53} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.14"]
[White "Vaibhav Jayant Raut"]
[Black "Iniyan, P."]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2198"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,-16,0,-23,29,16,19,-25,-22,-7,-21,-18,-23,-41,-36,-33,-34,-32,-30,-77,-64,-71,-69,-84,-75,-79,-75,-104,-100,-91,-83,-85,-66,-82,-66,-60,-55,-70,-39,-41,-41,-41,-41,-38,0,0,0,-59,-65,-63,-69,-268,-273,-271,-276,-268,-233,-227,-239,-283,-276,-262,-267,-280,-262,-385,-359,-388,-388,-388]} 1. Nf3 Nf6 2. g3 d5 3. c4 d4 4. Bg2 c5 5. b4 cxb4 6. a3 {A09: Réti Opening: 1 Nf3 d5 2 c4.} bxa3 (6... b3 $142) 7. Bxa3 Nc6 8. d3 (8. Qa4 {was preferrable.}) 8... g6 9. O-O Bg7 10. Nbd2 O-O 11. Qc2 Rb8 12. Rfb1 b6 {[#]} 13. Ng5 $146 ({Predecessor:} 13. Rb2 a5 14. Rab1 Bd7 15. Ne1 Qc7 16. Qd1 Rfe8 17. c5 b5 18. Rxb5 Rxb5 19. Rxb5 {½-½ (70) Moehring,G (2302)-Breier,A (2359) Berlin 2004}) 13... Bd7 14. Rb2 (14. Nge4 $11 {feels stronger.}) 14... h6 $17 15. Nge4 Ne8 {[%cal Bf6e8,Be8c7,Bc7e6][%mdl 32] White must now prevent ...f5.} 16. Nf3 Nc7 17. Rab1 Re8 18. h4 Rc8 19. Qd1 Ne6 20. Ne1 Ne5 21. Nc2 Ba4 22. Nd2 Qc7 23. Qf1 b5 {[%cal Rb5c4] Black is more active.} 24. Nb4 {Threatens to win with cxb5.} bxc4 {aiming for ...c3.} 25. Nd5 Qd8 {And now ...c3 would win.} 26. Nxc4 Bc6 {Inhibits Rb7.} 27. Nxe5 Bxe5 28. Nb4 (28. Rc2 $11 Bxd5 29. Rxc8 Qxc8 30. Bxd5) 28... Bxg2 $15 29. Qxg2 Bd6 {Strongly threatening ...Qa5.} 30. Nc2 $2 {[#] Loses the game.} ({White should try} 30. Ra1 $1 $15) 30... Rxc2 $1 $19 {[%mdl 512]} 31. Rxc2 {Ra2 is the strong threat.} Bxa3 32. Qc6 a5 33. h5 g5 34. Rb5 Bb4 35. Re5 Kh8 36. Qe4 Rf8 37. Rc6 {[#]} (37. Rc4 $142) 37... Bd6 $1 38. Rf5 Qa8 {Inhibits Ra6.} 39. Qd5 {Weighted Error Value: White=0.27 (precise) /Black=0.08 (flawless)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.15"]
[White "Mayank Chakraborty"]
[Black "Raahul V S"]
[Result "0-1"]
[ECO "C73"]
[WhiteElo "2164"]
[BlackElo "2478"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,74,21,51,30,13,0,0,-12,-8,-21,-31,-58,-43,-68,-17,-47,-42,-75,-57,-71,-71,-250,-274,-263,-255,-258,-249,-271,-245,-295,-287,-288,-274,-397,-331,-335,-344,-316,-337,-334,-339,-299,-294,-329,-289,-289,-274,-335,-282,-521,-457,-433,-399,-863,-761,-2450,-1696,-5522,-2884,-12835,-12834,-3579,-1955]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 f6 7. O-O g6 8. Nc3 {C73: Ruy Lopez: Deferred Steinitz: 5 Bxc6+.} Bg7 9. Qe2 {[#]} Ne7 $146 ({Predecessor:} 9... Nh6 10. dxe5 fxe5 11. Qc4 Bd7 12. Ng5 Qf6 13. Be3 Nf7 14. f4 exf4 15. Rxf4 Ne5 {1-0 (37) Pogonina,N (2501)-Wang,Y (2369) Ningbo 2010}) 10. h3 {The position is equal.} O-O 11. Rd1 h6 12. Na4 Qe8 13. b3 Bd7 ({Black should try} 13... exd4 $15 14. Nxd4 c5) 14. c3 g5 15. Qd3 Qh5 16. Re1 Rf7 17. g4 $2 (17. Qe2 $17) 17... Qxh3 $19 18. Nxe5 Qxd3 19. Nxd3 {Pair of Knights!} Bxg4 20. f4 Re8 21. Bd2 Ng6 22. Kf2 Rfe7 23. Nb4 (23. Kg3 {was necessary.} Bc8 24. c4) 23... Rxe4 24. Rxe4 Rxe4 25. Re1 {Prevents Re2+.} Rxe1 26. Kxe1 Bc8 ({Avoid the trap} 26... gxf4 $2 27. Nxa6 Kf7 28. Kf2 $19) ({Don't go for} 26... Nxf4 $2 27. Bxf4 gxf4 28. Nb2 $19) 27. Nxc6 g4 {[%cal Bg5g4,Bg4g3,Bg3g2][%mdl 32]} ({Weaker is} 27... gxf4 28. c4 $17) 28. c4 h5 {[%cal Bh6h5,Bh5h4,Bh4h3][%mdl 32]} 29. Nc3 Bf5 30. Ne2 h4 {Inhibits Ng3.} 31. Ba5 $2 (31. Nb4 {is a better defense.}) 31... g3 32. Bxc7 Bg4 {[#] Hoping for ...Bxe2.} 33. Bxd6 $2 (33. f5 Bxf5 34. Bxd6) 33... Bxe2 {Black is clearly winning.} 34. Kxe2 h3 35. Kf3 g2 36. Kf2 Nh4 {( -> ...h2)} 37. f5 {[#]} Nf3 $1 {[%mdl 576] Deflection. Black took control after the opening.  Weighted Error Value: White=1.03/Black=0.13 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.16"]
[White "Franco Valencia, Angela"]
[Black "Nigmatov, Ortik"]
[Result "0-1"]
[ECO "B91"]
[WhiteElo "2116"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "148"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,148,28,16,5,0,4,3,21,0,12,0,4,4,4,5,13,2,0,0,-11,-24,-17,-100,-110,-131,-123,-125,-132,-138,0,0,16,0,60,-62,-27,-32,0,0,0,0,0,0,0,0,0,0,51,56,123,7,9,3,109,97,106,100,122,133,146,151,216,107,100,97,204,18,18,0,0,0,0,0,0,0,-2,-4,0,0,8,8,8,0,8,0,0,0,0,0,0,0,18,8,39,12,73,73,72,82,73,8,8,8,73,51,58,24,42,42,42,-12,-13,-12,-13,-479,-466,-472,-403,-567,-562,-625,-629,-624,-622,-29970,-29971,-29968,-29970,-29957,-29960,-4906,-1777]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 O-O 9. h3 Be6 10. O-O Nbd7 {[%cal Bb8d7,Bd7c5,Bc5a4][%mdl 32] B91: Sicilian Najdorf: 6 g3.} 11. g4 b5 12. Nd5 Bxd5 {The position is equal.} 13. exd5 Nc5 {[#]} 14. Ng3 $146 ({Predecessor:} 14. f4 Nfd7 15. Be3 Rc8 16. b3 Re8 17. fxe5 Nxe5 18. Qd2 g6 19. Nd4 Bf6 20. Rae1 {1-0 (46) Saranya,Y (1974)-Gandhi,A (2201) Ahmedabad 2019}) 14... g6 15. Bh6 Re8 16. Qd2 Nfd7 17. Rae1 Bh4 18. b4 Na4 19. Ne4 Qe7 20. Re2 (20. Bg5 $11 Bxg5 21. Nxg5) 20... f5 $17 21. gxf5 gxf5 22. Bg5 Bxg5 23. Nxg5 Nf8 {Pair of Knights!} (23... f4 $17 24. Ne6 Qf6) 24. Kh1 $11 Ng6 {To avoid f4} 25. Ne6 {Prevents Nf4.} Rac8 ({Black should play} 25... Qf7 $11) 26. Rg1 (26. f4 $1 $14) 26... Qh4 27. f4 e4 (27... exf4 $5 {[%cal Rf4f3]} 28. Rf2 (28. Qd4 Re7 $15) 28... Rc3 $11) 28. Qd4 {[%csl Ge6][%cal Rd4g7] To avoid Qf6} Re7 {Inhibits Qg7+.} 29. Bf1 Rc4 $1 30. Qd2 Rc3 31. Re3 Qf6 32. Rgg3 $36 {[%cal Re3c3][%mdl 2048] White has the initiative.} Rxe3 (32... Rc8 $11) 33. Qxe3 $14 Rb7 (33... Qa1 $14 34. Qg1 Kh8) 34. Qd4 ({Better is} 34. c4 $1 $16 {[%cal Rc4c5]}) 34... Qxd4 $11 35. Nxd4 Nb6 (35... Rd7 $11) 36. Nxf5 $16 Nxd5 37. Nxd6 Rb6 38. Nxe4 {And now c4 would win.} Ndxf4 39. c4 Re6 (39... bxc4 $16 40. Bxc4+ Kg7) 40. Nc5 ({Much less strong is} 40. cxb5 $6 Rxe4 41. bxa6 Rxb4 $16) (40. Nc3 $1 $18) 40... Re1 {[%csl LRc4,LRf1]} 41. Rg1 Re3 (41... Ne2 $16 {keeps fighting.}) 42. cxb5 $2 (42. Nxa6 $18 Nxh3 43. Bxh3 Rxh3+ 44. Kg2 Nf4+ 45. Kf1+ Kf7 46. cxb5) 42... axb5 $11 43. Rg4 h5 44. Rg5 Kg7 45. Kh2 {aiming for Rg3.} Ra3 46. h4 Rxa2+ 47. Kg3 Ra3+ 48. Kf2 Ra2+ 49. Ke3 Kh6 50. Bxb5 Ng2+ 51. Ke4 N2xh4 52. Rg1 Rb2 53. Nd3 Re2+ 54. Kd5 Ng2 55. Bd7 Rd2 56. Kc4 N6h4 {[#]} (56... N2f4 $11 57. Bf5 Ne7) 57. Kc3 $1 $16 Re2 (57... Nf3 $2 58. Rf1 $18) 58. b5 {Black must now prevent b6.} Ne3 59. Re1 (59. Rc1 $16) 59... Nd5+ $11 60. Kb3 Rd2 (60... Rxe1 $11 61. Nxe1 Nb6) 61. Re6+ Kg7 62. Ne5 Nf4 63. Re7+ Kf6 {[#]} 64. Nc6 (64. b6 $1 $14 Kxe7 65. b7) 64... Nhg6 65. Rh7 Nf8 $1 {[%csl LRd7,LRh7]} 66. Rh8 $2 {[%mdl 8192]} ({Wrong is} 66. Rh6+ $2 Kg5 67. Rxh5+ Nxh5 $19) (66. Bc8 $1 $11 {and White has nothing to worry.}) 66... Nxd7 $19 67. Kc3 Rd5 68. Rd8 (68. Nd4 $142) 68... Ne6 69. Rh8 Rxb5 {Threatens to win with ...Rc5+.} 70. Rh6+ Kf7 71. Kd2 Nf6 72. Rh8 Nf8 73. Nd4 Rd5 74. Ke3 Kg7 {What a bad dream for White.  Weighted Error Value: White=0.27 (precise) /Black=0.23 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.17"]
[White "Abhash Roimya Saikia"]
[Black "Abdisalimov, Abdimalik"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "1717"]
[BlackElo "2435"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,120,0,0,-10,37,0,0,0,0,0,-12,-10,-20,-8,23,29,16,-38,-29,-20,-39,-33,-32,-40,-43,-39,0,0,0,0,0,-20,-14,-22,-20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-128,-63,-144,-144,-313,-313,-314,-299,-310,-208,-319,-319,-318,-297,-436,-460,-470,-383,-300,-283,-283,-562,-381,-201,-201,-201,-1603,-1522,-946,-1073,-1773,-1441,-835,-835,-6195,-1260,-29973,-29972,-29971,-29970,-29965,-6215,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29987,-29988,-29988,-29989,-29989,-29990]} 1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Be3 Nf6 7. h3 O-O 8. Qd2 e5 9. Nge2 {B26: Closed Sicilian: 3 g3, lines with early Be3.} Be6 (9... Nd4 $11) 10. O-O Qd7 11. Kh2 {The position is equal.} Nd4 {[%cal Oe6h3]} 12. f4 {[%cal Of4f5]} Nh5 13. f5 gxf5 {[%cal Of5f4] [#]} 14. Bh6 $146 {Inhibits f4. Qg5 is the strong threat.} ({Predecessor:} 14. exf5 Nxf5 15. Rxf5 Bxf5 16. g4 Bxg4 17. hxg4 Qxg4 18. Bh3 Qb4 19. Rg1 Kh8 20. Rg4 {0-1 (42) Weinstock,D-Franett,M Seattle 1989}) 14... f6 {[%cal Of5f4] To avoid Qg5} 15. exf5 $1 Nxf5 {[#]} 16. Bxg7 ({Better is} 16. Rxf5 $1 $11 Bxf5 17. g4) 16... Nhxg7 $15 17. Ne4 $1 {aiming for g4.} Qe7 18. g4 Nh4 19. Qh6 {[%csl LRf6,LRh4]} Nxg2 20. Kxg2 {[%cal Re4f6]} f5 (20... Bd5 21. N2g3 $11) 21. Ng5 {[%csl Gg5][%cal Rh6h7]} Bd5+ 22. Kh2 {[%csl Gg5][%cal Rh6h7]} Ne6 23. gxf5 Nxg5 (23... Qxg5 $2 24. Rg1 Rxf5 25. Rxg5+ Rxg5 26. Rg1 Rxg1 27. Kxg1 $18) 24. f6 Qf7 $1 25. Qxg5+ Kh8 {Hoping for ...Rg8.} 26. Qh6 Rg8 (26... Qg8 $2 27. Rg1 $18) 27. Rg1 {Inhibits Rg2+.} Raf8 {Really sharp!} 28. Rxg8+ $1 Rxg8 29. Rg1 {To avoid Rg2+} Rxg1 30. Kxg1 Qg6+ 31. Qxg6 hxg6 $11 {[%mdl 4096] Endgame KB-KN} 32. c4 Bc6 33. h4 (33. Nc3 $11 {keeps the balance.}) 33... Kg8 (33... d5 $1 $17 {[%cal Rd5d4] White must now prevent ...d4.} 34. cxd5 Bxd5) 34. Ng3 (34. Nc3 $1 $15) 34... d5 $1 $17 {[%cal Bd6d5,Bd5d4][%mdl 32]} ({Weaker is} 34... Kf7 35. Ne4 $15) 35. Kf2 $2 {[#] Loses the game.} (35. cxd5 $17 {was worth a try.} Bxd5 36. Kf2) 35... d4 $1 $19 ({Stronger than} 35... Kf7 36. cxd5 Bxd5 37. b3 $17) 36. h5 gxh5 37. Nxh5 Be8 ({Not} 37... Kf7 $2 38. Ke2 $19) 38. Ng3 {[#]} (38. Ng7 {was the only chance.} Bd7 39. Ke1) 38... Bg6 $1 39. Ke2 Kf7 40. Kd2 (40. Nf1 {was necessary.}) 40... Kxf6 41. Ne2 Kg5 42. Nc1 b6 43. a3 a5 {[%cal Ba7a5,Ba5a4][%mdl 32] Prevents b4.} 44. b3 Kf4 45. Ne2+ Kf3 {[%cal Oa5a4] And now ...a4! would win.} 46. Ng1+ $2 (46. a4) 46... Kg2 47. Ne2 a4 48. Nc1 Be8 {Strongly threatening ...axb3.} 49. Ke2 Kg3 50. Kd2 Kf2 (50... axb3 $142 51. Nxb3 Kf3) 51. bxa4 Bxa4 52. Na2 b5 53. cxb5 Bxb5 {( -> ...c4)} 54. Nc1 c4 {Black mates.} 55. dxc4 Bxc4 56. Nd3+ Bxd3 57. Kxd3 Kf3 58. a4 e4+ {[%cal Be5e4,Be4e3,Be3e2][%mdl 32]} 59. Kxd4 e3 60. a5 e2 {Weighted Error Value: White=0.73/Black=0.17 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.18"]
[White "Sai Agni Jeevitesh, J."]
[Black "Arpan, Das"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2316"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,43,0,0,12,23,21,22,22,22,10,20,2,7,3,58,49,94,92,123,117,268,255,328,342,438,456,485,431,845,835]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 c5 7. dxc5 Bxc5 8. Nf3 Nc6 9. Be2 {D32: Tarrasch Defence: Sidelines and lines without g3.} O-O 10. O-O d4 11. exd4 {The position is equal.} Nxd4 12. Nxd4 Bxd4 {[#]} 13. Qb3 $146 ({Predecessor:} 13. Bf3 Qb6 14. Qc2 Bg4 15. Bxg4 Nxg4 16. h3 Nf6 17. Rad1 Rac8 18. Rd3 Bxc3 19. bxc3 Rc4 20. Be5 Re8 21. Bd4 Qc6 22. Qd2 Ne4 23. Qf4 Nxc3 24. Bxc3 Rxf4 {0-1 (24) Girya,O (2405)-Dauner,B (2331) Chess.com INT 2022}) 13... Be6 14. Qxb7 Ra7 ({Black should try} 14... Nd5 $11 15. Nxd5 Bxd5) 15. Qb4 a5 (15... Bxc3 $14 {should be considered.} 16. Qxc3 (16. bxc3 Nd5 $14) 16... Nd5) 16. Qa4 $16 Rb7 {[#] And now ...Rb4 would win.} 17. Nb5 $1 Bxb2 {This move loses the game for Black.} (17... Bc5 $16) 18. Rab1 $18 Nd5 19. Rxb2 Qf6 20. Bc1 {White is clearly winning.} Bd7 21. Qd4 {Inhibits Nc3.} Qg6 (21... Qxd4 $142 22. Nxd4 Rxb2) 22. Qxd5 {Weighted Error Value: White=0.07 (flawless) /Black=0.47} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.19"]
[White "Divya Deshmukh"]
[Black "Trailokya, Nanda"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2301"]
[BlackElo "1973"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,43,78,62,72,69,72,78,77,72,75,76,77,77,93,69,82,59,67,67,60,57,66,60,68,57,79,79,79,78,112,78,78,75,77,75,75,59,70,65,90,90,124,131,125,125,183,172,211,211,200,190,202,192,206,200,223,211,221,218,404,408,408,406]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Nf6 5. e5 dxe5 6. Nxe5 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Bd7 7. Bxc6 Bxc6 8. Nxc6 {White is better.} bxc6 9. d3 e6 10. Nd2 {[#]} Qc7 $146 ({Predecessor:} 10... Be7 11. Qf3 Qd5 12. Ne4 c4 13. Bh6 Nxe4 14. dxe4 Qe5 15. Bf4 Qxb2 16. Rab1 Qa3 17. Rb7 O-O 18. Qe2 c3 19. Bc1 Qc5 20. Be3 Qa3 21. Bc1 Qc5 22. Be3 {½-½ (22) Stukopin,A (2589)-Maghsoodloo,P (2638) Voronezh 2018}) 11. Nc4 Be7 12. Bg5 {[%cal Bc1g5,Bg5h4,Bh4g3][%mdl 32]} O-O 13. Bh4 Rfd8 14. Re1 Nd5 15. Bg3 Qb7 16. a4 Nb6 {[#] Threatens to win with ...Nxc4.} 17. Nd2 (17. Na5 {feels hotter.} Qd7 18. Be5 g6 19. Qf3 Rac8 20. b3) 17... a5 {[%cal Oc5c4]} 18. Qe2 Nd5 19. Nc4 Nb6 20. Nxb6 Qxb6 21. Be5 Bf8 22. Bc3 Rd5 23. Ra3 {[%cal Ba1a3,Ba3b3,Bb3b6][%mdl 32]} g6 24. Rb3 Qd8 25. Qf3 Ra7 {To avoid Rb7} 26. Qf6 {White is more active.} Qxf6 27. Bxf6 Ra8 {Prevents Rb8.} (27... Rf5 $16) 28. Re4 $18 Rd7 29. Rb6 Rc7 30. Be5 {Prevents Bd6.} Rcc8 31. Rb7 Re8 32. h4 Rac8 33. Bc3 Ra8 34. h5 Rec8 $2 {[#]} (34... Rab8 {was necessary.} 35. Ra7 Ra8 36. Rxa5 Rxa5 37. Bxa5 Bg7) 35. hxg6 hxg6 36. Rf4 {[%mdl 32768] Weighted Error Value: White=0.05 (flawless) /Black=0.19 (very precise) . An unexpected result.} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.19"]
[Round "9.20"]
[White "Manish Anto Cristiano F"]
[Black "Praloy Sahoo"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2236"]
[BlackElo "2047"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,63,7,6,9,14,6,12,18,66,5,54,26,75,54,77,70,118,110,125,8,21,16,105,95,134,134,137,128,184,177,144,124,206,191,157,146,196,161,212,212,278,274,258,270,388,371,412,394,541,490,529,507]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Be2 dxc4 7. a4 Bb4 8. Bxc4 {D45: Semi-Slav: 5 e3.} O-O 9. O-O Qe7 10. Qc2 {The position is equal.} e5 (10... b6 $11 {is superior.}) 11. Bb3 {[#]} (11. a5 $1 $14) 11... g6 $146 (11... b6 $11 {is more appropriate.}) ({Predecessor:} 11... b6 12. Rd1 Bb7 13. Qf5 Rae8 14. Bd2 c5 15. dxe5 Nxe5 16. Qxe5 Qxe5 17. Nxe5 Rxe5 {0-1 (40) Belozerov,A (2455)-Bocharov,D (2245) Tomsk 1998}) 12. Bd2 Bd6 (12... b6 $11 {feels stronger.}) 13. h3 {White is more active.} Kg7 14. Rfe1 e4 ({Black should play} 14... a5 $14) 15. Ng5 $16 {[%cal Rc3e4]} Nb6 16. Ngxe4 ({But not} 16. Ncxe4 Bf5 17. f3 Rae8 $11) ({White has to play} 16. f3 $1 $16) 16... Bf5 $11 {[%cal Rf6e4]} 17. f3 $36 {[%cal Bf2f3,Bf3e4][%mdl 2080] White is more active.} Bg3 18. Rf1 $16 Rae8 {[#]} 19. Qc1 $1 Nxe4 20. fxe4 Be6 (20... Bxe4 $16 {was called for.} 21. Nxe4 Qxe4) 21. Bxe6 $18 fxe6 22. Qc2 Qh4 {[#]} (22... Nc4 $16 {is a better defense.}) 23. Ne2 $1 Bf2+ 24. Kh2 {Hoping for Bb4.} g5 (24... Nd7 $16 {might work better.}) 25. Be1 {[%cal Bd2e1,Be1g3,Bg3d6][%mdl 32]} g4 (25... Bxe1 $142 26. Raxe1 g4) 26. Nf4 {The board is on fire.} g3+ 27. Kh1 Bxe3 28. Bxg3 Qg5 (28... Qe7 $142 29. a5 Nd7) 29. Ne2 Nd7 30. Qb3 b6 31. Bd6 Rf2 32. Rxf2 {Weighted Error Value: White=0.15 (very precise) /Black=0.42} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.1"]
[White "Delgado Ramirez, Neuris"]
[Black "Ponkratov, Pavel"]
[Result "0-1"]
[ECO "B58"]
[WhiteElo "2615"]
[BlackElo "2641"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,112,16,30,0,0,-9,0,0,-1,-8,0,0,0,-28,-26,-26,-20,-22,0,-2,0,0,0,0,0,0,0,-22,-40,-23,-29,-20,0,-14,-8,-37,-45,-38,-38,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-159,-159,-152,-152,-152,-159,-152,-152,-147,-129,-602,-602,-587,-587,-587,-587,-554,-528,-1335,-1304,-1095,-311,-1245,-980,-1443,-1443,-1387,-1387,-1385,-1375,-1329,-1329,-1354,-1075,-8993,-8439,-8993,-7956,-6683,-5238,-5695,-5522,-6295,-5518,-6187,-6339,-4782,-4631,-4627,-4618]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be2 g6 7. Nxc6 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3).} bxc6 8. Be3 Qa5 9. Qd2 {The position is equal.} Bg7 {[%cal Bf8g7,Bg7f6,Bf6d4][%mdl 32]} 10. O-O O-O {[#]} 11. Rab1 $146 ({Predecessor:} 11. Rfe1 Rd8 12. Bh6 Bh8 13. Nd5 {1-0 (13) Kunkel,H-Dettweiler,C (2030) Baden 2011}) 11... Rd8 12. Nd5 Qxd2 13. Nxf6+ Bxf6 14. Bxd2 d5 15. Ba5 Rd6 16. Bd3 Bd4 17. exd5 Rxd5 18. Bb4 Bf5 {To avoid Be4} 19. Bxe7 Bxd3 20. cxd3 Re8 21. Rfe1 c5 22. g4 a5 {...f6 is the strong threat.} 23. g5 {Prevents f6.} Rf5 24. Re4 {[%cal Oe7f6]} Bxf2+ 25. Kg2 Bd4 {Prevents Bf6.} 26. Bf6 {[%cal Re4e8]} Rxe4 27. dxe4 Rf4 28. Bxd4 $1 cxd4 $15 {[%mdl 4096] Endgame KR-KR} 29. b4 $1 axb4 ({But not} 29... Rxe4 30. b5 $14 (30. bxa5 Rg4+ 31. Kf3 Rxg5 $17)) 30. Rxb4 Rxe4 31. Kf3 {Prevents Rg4.} Re3+ 32. Kf2 (32. Kg4 $15) 32... Rh3 $17 {Black is more active.} 33. Kg2 {[#]} Rh5 $1 34. Rxd4 Rxg5+ 35. Kf3 Rc5 36. a4 Rc3+ 37. Kg4 $2 {[%mdl 8192] Loses the game.} (37. Ke4 $17) 37... h5+ $19 38. Kf4 Rh3 39. Rd2 Rh4+ 40. Kg5 Rxa4 41. Kh6 {[%cal Rd2d8]} Kf8 42. Rb2 Rf4 $2 (42... Rg4 43. Ra2 Ke7) 43. Re2 $2 (43. Kg5 Rf1 44. Kh6) 43... Rf5 {Black is clearly winning.} 44. Ra2 h4 {[%csl Gg6][%cal Rf5h5]} 45. Ra8+ Ke7 46. Ra4 g5 47. Kh5 {[#]} f6 $1 {Hoping for ...Rf2.} 48. Re4+ Kf7 {aiming for ...Rf2.} 49. Re3 Rf2 50. h3 Rg2 {( -> ...f5)} 51. Ra3 Rg3 52. Ra7+ Ke6 53. Kg6 Rf3 54. Ra5 Rxh3 {And now ...Rf3 would win.} 55. Ra6+ Ke5 {Threatens to win with ...Rf3.} 56. Rxf6 Rg3 {Weighted Error Value: White=0.70/Black=0.22 (precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.2"]
[White "Fawzy, Adham"]
[Black "Krishna C R G"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2476"]
[BlackElo "2466"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,63,2,10,0,17,12,17,25,29,26,44,32,29,31,49,41,43,42,148,114,130,72,185,156,231,241,336,327,322,257,365,353,334,262,378,364,402,414,516,500,644,640,760,757,1023,998,1012,993,920,874]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. h4 Ne7 9. h5 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} h6 10. Qg4 {has lost popularity (10.Nf3).} Kf8 11. Rh3 {The position is equal.} Nbc6 {[%cal Oc6e5] [#] Threatens to win with ...Nxe5!} 12. Qf4 ({Reject} 12. Rg3 Nf5 13. dxc5 Qxg4 14. Rxg4 Nxe5 $11) 12... c4 13. Kd1 Bd7 14. Rf3 {[%csl Gf3][%cal Rf4f7]} Nd8 {[#]} 15. Bc1 $146 ({Predecessor:} 15. g4 Rc8 16. Bh3 Rc6 17. g5 hxg5 18. Qxg5 Rh7 19. Ne2 Ke8 20. Nf4 Bc8 21. h6 gxh6 {1-0 (39) Park,E (1972)-Kozelov,R (2149) Saint Louis 2019}) 15... Ke8 16. g4 Bb5 (16... Qa5 $14) 17. Bh3 Rc8 18. Rg3 (18. Ne2 $142) 18... g5 (18... Rh7 $16) 19. Qd2 Ndc6 (19... Qa5 $16 20. f4 gxf4 21. Qxf4 Rh7) 20. f4 $18 Kd7 21. fxg5 hxg5 22. Rf3 ({Don't do} 22. Qxg5 Rcg8 $18) 22... Rh7 (22... Rcg8 {is a better defense.} 23. Rxf7 Nd8) 23. Qf2 ({Not} 23. Qxg5 Kc7 24. Qh4 Kb8 $18) 23... Qa5 24. Bxg5 {aiming for Ne2.} Ba4 (24... Re8 $142 25. Rb1 Nd8) 25. Ne2 {[%cal Bg1e2,Be2f4,Bf4d5][%mdl 32]} Rg8 26. Bh4 {Dancing on a razor blade.} Ke8 27. Nf4 {White is clearly winning.} Qb6 28. Kc1 {Prevents Qb2+.} Nd8 29. g5 Ng6 30. hxg6 fxg6 {[#]} 31. Bxe6 $1 Nxe6 32. Nxd5 {Weighted Error Value: White=0.14 (very precise) /Black=0.50} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.3"]
[White "Visakh N R"]
[Black "Sidhant, Mohapatra"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2522"]
[BlackElo "2359"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,60,8,8,8,0,10,40,22,16,10,35,0,0,-1,25,9,6,15,20,22,21,24,52,39,39,37,39,35,46,7,10,14,16,4,13,15,14,0,0,0,0,-14,0,-18,0,0,0,-29,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 b5 8. a4 {E05: Open Catalan: 5 Nf3 Be7.} b4 9. Nfd2 Nd5 $1 {[%mdl 4] outshines the older 9...c6.} 10. Nxc4 {White is slightly better.} c5 $1 11. dxc5 Bxc5 12. Nbd2 (12. e4 $5 {[%cal Re4d5]} Nb6 13. Ncd2 $14) 12... Ba6 13. Nb3 {[#]} Qc8 $146 (13... Nd7 $5 {[%cal Ra8c8]}) ({Predecessor:} 13... Nd7 14. Nxc5 Nxc5 15. Ne3 Rc8 16. Nxd5 exd5 17. Bh3 Rc6 18. Be3 d4 19. Rfd1 Qe8 20. Rxd4 {½-½ (35) Sargissian,G (2682)-Dubov,D (2699) Chess.com INT 2020}) 14. Nxc5 Qxc5 15. b3 Nd7 16. Bb2 Rac8 17. Rfc1 N7b6 {[%cal Rb6c4]} 18. e4 Nc3 19. Bxc3 bxc3 20. Qxc3 Nxc4 21. bxc4 (21. Bf1 $5 {[%cal Rf1c4]}) 21... Rfd8 22. e5 Rd4 {[%cal Rd4c4]} 23. Qe3 Rxc4 24. Rxc4 Qxc4 (24... Bxc4 $2 25. Qxc5 Rxc5 26. Rc1 $18) 25. Bf1 Qc6 26. Bg2 Qc5 27. Qe1 g6 28. h4 h5 29. Rd1 Kg7 30. Ra1 Kg8 {Weighted Error Value: White=0.09 (flawless) /Black=0.07 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.4"]
[White "Aradhya, Garg"]
[Black "Das, Sayantan"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2236"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,109,10,18,6,0,6,12,4,40,43,51,47,48,43,52,35,39,36,51,26,36,21,27,7,16,0,1,0,7,0,0,0,0,0,0,0,0,0,0,0,22,14,15,0,0,0,0,0,3,0,21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,331,338,335,328,338,345,12828,12829,12830,12830,12830,7683,12831,12831,12832,12832,12834,12835,12833,12835,12828,4802,12843,12843,12845,12846]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O Ne4 {[#]} 6. Ng5 $146 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} ({Predecessor:} 6. Nbd2 Nxd2 7. Bxd2 d6 8. c3 e5 9. dxe5 dxe5 10. e4 Nd7 11. Bg5 Qe8 12. Qd5 Nf6 13. Qxe5 Nxe4 14. Qxc7 Nxg5 15. Nxg5 {1-0 (36) Artemiev,V (2699)-Iljiushenok,I (2554) Sochi 2021}) 6... Nxg5 7. Bxg5 d5 8. Nc3 {The position is equal.} c6 9. e4 {[%cal Re4d5]} dxe4 10. Nxe4 Bf5 11. Re1 h6 12. Bf4 Nd7 13. c3 Qb6 14. Qd2 Kh7 15. a4 a5 $1 16. h3 Rad8 17. g4 Bxe4 18. Bxe4 c5 {[%cal Rc5d4]} 19. d5 Nf6 $1 {[%cal Of6d5]} 20. c4 Nxe4 21. Rxe4 e6 (21... Qxb2 $2 22. Qxb2 Bxb2 23. Rb1 $18) 22. Be5 exd5 23. Bxg7 Kxg7 24. cxd5 Qf6 25. Rd1 b6 26. d6 {Threatens to win with d7.} Rd7 27. Re3 {[%cal Be4e3,Be3d3,Bd3d5][%mdl 32]} Rfd8 {[%cal Rd7d6]} 28. Rd3 Rc8 29. Kg2 Rc6 30. Rd5 Rc8 31. b3 Re8 32. Qc2 Re6 {[%cal Re6d6]} 33. Qd2 Kh7 34. Qd3 Qf4 35. Qf3 Qxf3+ 36. Kxf3 $11 {[%mdl 4096] Endgame KRR-KRR} Kg7 37. h4 Kf8 38. R1d3 Kg8 39. h5 g5 40. Kg3 Re4 41. f3 Rf4 42. Rf5 Rb4 {[%mdl 8192] [#]} (42... c4 $1 $11 43. bxc4 Rxc4) 43. f4 $1 $18 c4 44. bxc4 gxf4+ 45. Rxf4 Rxa4 $2 (45... Rb1 46. Kf3 Re1) 46. c5 {White is clearly winning.} Rxf4 47. Kxf4 {[#] White wants to mate with c6.} bxc5 {KR-KR} 48. Ke5 Kf8 49. Kd5 c4 50. Re3 c3 51. Rxc3 Rd8 52. Ra3 Ra8 53. Kc6 a4 54. d7 f6 55. Kb7 {Weighted Error Value: White=0.05 (flawless) /Black=0.18 (very precise)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.5"]
[White "Nitin, S.."]
[Black "Ratnakaran, K.."]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2427"]
[BlackElo "2316"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,79,38,53,44,42,38,44,0,0,-41,-41,-32,-18,-9,-20,-16,-15,-25,0,0,9,9,159,153,152,151,162,154,177,168,161,208,193,202,299,233,487,500,701,666,651,643,600,516,519,512,472,418,1048,1030,1079,307,6686,6083,2393,2241,1620,1591,29987,29988,29991,12843]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 Bd7 7. O-O Nh6 8. Bxh6 gxh6 9. Qd2 Bg7 10. Na3 O-O 11. Nc2 {C02: French: Advance Variation.} f6 (11... Qxb2 $2 12. Rfb1 Qxa1 13. Nxa1 $18) 12. exf6 Rxf6 13. Ne3 (13. dxc5 $14 Qxc5 14. Ne3) 13... cxd4 $11 14. cxd4 (14. Nxd4 $11 Raf8 15. g3) 14... Raf8 $15 15. Ne5 Be8 (15... Qxd4 16. Qxd4 Nxd4 17. Nxd7 $14) 16. Nxc6 bxc6 17. g3 {To avoid Rf4} h5 {[%cal Oh5h4] [#] Inhibits Ng4.} 18. Rac1 $146 ({Predecessor:} 18. Kg2 Bg6 19. f4 R6f7 20. Rad1 a5 21. b3 Kh8 22. h4 a4 23. b4 a3 24. Nc2 {0-1 (32) Bonugli,C (2075)-Jurkovic,A (2320) Salsomaggiore Terme 1997}) 18... Bg6 19. b4 R6f7 20. Rc5 e5 {Black is now going downhill.} (20... h4 $11) 21. dxe5 $16 Bxe5 {[#]} 22. Nc4 {[%cal Be3c4,Bc4a5,Ba5c6][%mdl 544] Prevents Bd6.} Qb8 (22... dxc4 23. Rxe5) 23. Na5 Qe8 24. Nxc6 Bc7 {[#]} 25. Nd4 $1 ({Don't do} 25. Nxa7 $6 Bb6 26. Bb5 Qe4 $16) 25... Bb6 26. Rxd5 {aiming for Bc4.} h4 (26... Kh8 $142 27. Qc3 (27. Bxh5 Bxh5 28. Rxh5 Rd7 $16) 27... Rf6) 27. Bc4 ({Weaker is} 27. gxh4 Qe4 28. Rd6 Rg7 $17) ({Not} 27. Bd3 Rf6 $16) 27... hxg3 $2 (27... Kh8 28. Qc3 Rf6) 28. hxg3 $18 Kg7 29. Rd6 {Ne6+ is the strong threat.} Qe5 30. Bxf7 Kxf7 {[#]} 31. Rxb6 axb6 32. Re1 Qd5 33. Qc3 Be4 (33... Re8 $142) 34. f3 Bf5 35. Nc6 $2 (35. Nxf5 Qxf5 36. Re4) 35... Rg8 {To avoid Qg7+} (35... Re8) 36. Re7+ Kg6 37. Re5 {White wants to mate with Ne7+.} Qd1+ 38. Re1 Qd6 39. Ne7+ Kg5 40. Qe3+ {Weighted Error Value: White=0.31/Black=0.40} (40. f4+ $142 Kg4 41. Nxg8 Kh3 42. Qf3 Qd4+ 43. Kh1 Be4 44. Qxe4 Qd2 45. Qe6+ Kxg3 46. Rg1+ Kf3 47. Qh3+ Ke2 48. Rg2+ Kd1 49. Qf3+ Kc2 50. Qb3+ Kc1 51. Rg1+ Qe1 52. Qc3+ Kb1 53. Rxe1+ Kxa2 54. Ra1#) 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.6"]
[White "Deepan Chakkravarthy J."]
[Black "Saptarshi, Roy"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2520"]
[BlackElo "2402"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,89,37,21,43,57,73,44,43,29,39,50,36,10,31,19,19,12,70,45,37,37,44,25,24,21,21,12,15,17,20,0,0,0,0,0,0,0,0,0,0,0,5,4,13,6,16,0,0,0,16,10,16,0,4,4,4,4,0,5,63,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nc6 3. c4 Bg4 4. cxd5 Bxf3 5. gxf3 Qxd5 6. e3 e5 7. Nc3 Bb4 8. Bd2 Bxc3 9. bxc3 Qd6 10. Rb1 Rb8 {D07: Queen's Gambit: Chigorin Defence.} 11. Rg1 g6 12. Qa4 (12. f4 $5 {[%cal Rf4e5]} exd4 13. cxd4 $14) 12... Nge7 {[#] White is slightly better.} 13. h4 $146 {[%cal Bh2h4,Bh4h5][%mdl 32]} ({Predecessor:} 13. dxe5) 13... O-O 14. h5 a6 15. Bd3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 16. Qc2 b4 17. hxg6 fxg6 (17... hxg6 $11 18. Rg4 Qf6) 18. Ke2 ({Inferior is} 18. Bxa6 bxc3 19. Bxc3 Rxb1+ 20. Qxb1 exd4 21. exd4 Rxf3 22. Qb3+ (22. Bc4+ Kf8 $17) 22... Kf8 $17) (18. cxb4 {keeps more tension.} exd4 19. f4 Kg7 20. a3 Nd5 21. Rc1) 18... bxc3 19. Rxb8 {The board is on fire.} Rxb8 {[#]} 20. dxe5 $1 Nxe5 21. Bxc3 {Be4 is the strong threat.} Qxd3+ 22. Qxd3 Nxd3 23. Kxd3 $14 {[%mdl 4096] Endgame KRB-KRN} Nd5 24. Ba1 Nb4+ 25. Kc4 Nxa2 26. Rd1 Rb4+ 27. Kc5 Rb5+ 28. Kc6 Nb4+ 29. Kxc7 Rc5+ 30. Kd6 Rc6+ 31. Ke7 {[%cal Rd1d8] [#]} Rc7+ 32. Ke6 {[%cal Rd1d8]} Rc6+ 33. Ke7 {[%cal Rd1d8]} Rc7+ 34. Kf6 {[%cal Rd1d8]} Rc6+ 35. Ke5 Rc5+ 36. Ke4 Rc4+ 37. Bd4 Kf7 38. Ra1 h5 ({Better is} 38... Nc2 $11 39. Rxa6 Nxd4 40. Ra7+ (40. exd4 h5 $11) 40... Kf6 41. exd4 h5) 39. f4 (39. Ra4 $1 $14) 39... Nc2 $11 {The position is equal.} 40. Rxa6 {And now Ra7+ would win.} Nxd4 41. Kd3 Rc2 {Strongly threatening ...Nc6.} 42. Kxd4 Rxf2 43. Ke5 Kg7 44. e4 h4 45. f5 {Weighted Error Value: White=0.06 (flawless) /Black=0.07 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.7"]
[White "Stany, G.A."]
[Black "Karthikeyan, P.."]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2517"]
[BlackElo "2396"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,47,24,50,0,0,6,0,2,54,50,38,8,9,24,10,19,11,20,21,27,20,29,161,96,133,56,163,185,158,183,224,223,219,197,287,294,285,273]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 (6... Nf6 {looks sharper.} 7. Be2 a6 8. a3 Be7 9. O-O O-O) 7. g4 {seems to push 7.Qd2 aside. B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} (7. a3 $14) 7... b5 $11 8. Nxc6 Qxc6 9. Qd2 {The position is equal.} Nf6 (9... b4 $11 10. Ne2 Qxe4) 10. f3 $14 h6 {[#]} 11. h4 $146 ({Predecessor:} 11. O-O-O Bb7 12. h4 b4 13. Ne2 e5 14. Bh3 O-O-O 15. g5 Ne8 16. Kb1 Nd6 17. Qd3 {1-0 (27) Van Foreest,J (2702)-Kezin,R (2494) Chess.com INT 2022}) 11... Bb7 12. Rg1 d5 13. g5 hxg5 14. hxg5 b4 15. Ne2 {[#] Strongly threatening Nd4.} Nd7 16. g6 $36 {[%mdl 2048] Hoping for gxf7+. White has good play.} e5 (16... f6 $1 $11 {and Black is okay.}) 17. gxf7+ $18 Kxf7 {[#]} 18. f4 (18. O-O-O $1 $16) 18... Nf6 (18... dxe4 $2 19. O-O-O Nc5 20. Kb1 $18) (18... d4 $14 19. Bf2 Rd8) 19. fxe5 Nxe4 20. Qd3 ({Wrong is} 20. Nd4 $2 Nxd2 21. Nxc6 Nf3+ 22. Kf2 Bxc6 $19) 20... Qc4 (20... a5 $142) 21. Qxc4 dxc4 22. O-O-O {aiming for Rd7+.} Bc5 (22... Ke8 {was called for.} 23. Nf4 c3) 23. Bxc5 ({Not} 23. Rd7+ Ke6 24. Bxc5 Kxd7 25. Bxb4 (25. Rxg7+ Ke6 $11) 25... Ke6 $11) 23... Nxc5 24. Nf4 {Weighted Error Value: White=0.09 (flawless) /Black=0.40} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.8"]
[White "Iniyan, P."]
[Black "Sai Agni Jeevitesh, J."]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2516"]
[BlackElo "2316"]
[Annotator "TA"]
[PlyCount "237"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,237,29,34,51,0,11,12,18,33,38,13,55,0,0,0,0,0,0,-71,-62,-60,-67,-58,-66,-61,-52,-36,0,0,0,-14,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,35,35,35,26,20,21,37,21,28,11,20,4,32,36,72,77,96,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,58,8,8,8,8,8,11,8,11,8,11,8,8,8,8,8,8,0,0,0,14,11,21,28,58,58,58,58,58,58,58,43,58,58,58,58,58,0,58,58,58,58,58,58,58,58,58,58,58,58,58,8,8,8,58,58,58,58,58,58,58,58,58,58,58,17,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,58,29973,29974,29975,29976,29976,29974,29977,65,29978,29979,29981,29982,29982,29983,29984,29984,29985,29986,29986,29987,29987,29984]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O h6 7. b3 Ne7 8. c4 g5 {B12: Caro-Kann: Advance Variation.} 9. Be3 Bg7 10. Nc3 {[#]} f6 $146 {The position is equal.} ({Predecessor:} 10... O-O 11. cxd5 exd5 12. h4 g4 13. Ne1 h5 14. f3 f6 15. fxg4 hxg4 16. exf6 Nxf6 {0-1 (24) Valdes Escobar,A (2393)-Kropff,R (2298) Asuncion 2009}) 11. exf6 Bxf6 12. Re1 O-O 13. Rc1 (13. h3 $14) 13... Qe8 $1 $11 14. h3 Qf7 15. Nh2 Bg6 16. g4 (16. Bg4 $11 {remains equal.}) 16... Rad8 (16... Bh7 {feels hotter.}) 17. cxd5 $1 Nxd5 18. Nxd5 exd5 ({Don't play} 18... cxd5 19. Rc7 $14) 19. Bd3 Bxd3 (19... Be7 {with more complications.} 20. Bxg6 Qxg6 21. Qc2 Qf7 22. Nf1 Bd6) 20. Qxd3 Qh7 (20... Be7 {keeps more tension.} 21. h4 Rde8 22. hxg5 hxg5 23. f3 Kg7) 21. Qxh7+ Kxh7 22. Nf1 {[%cal Bh2f1,Bf1g3,Bg3h5,Bh5f4][%mdl 32]} Nb6 {[%cal Bd7b6,Bb6c8,Bc8d6][%mdl 32]} 23. Kg2 Nc8 24. f3 Nd6 25. a4 Rde8 26. Ng3 Kg6 27. Bf2 Bg7 28. Rcd1 a6 29. Nh5 Rxe1 30. Rxe1 {And now Re6+ would win.} Re8 {Inhibits Re6+.} 31. Rxe8 Nxe8 $14 {[%mdl 4096] Endgame KBN-KBN} 32. f4 gxf4 33. Nxf4+ Kf7 34. Nh5 Bf8 35. Kf3 b5 36. Nf4 Nc7 37. Nd3 Bd6 38. Bg3 (38. a5 $1 $16) 38... Bxg3 $11 39. Kxg3 {Hoping for Ne5+. KN-KN} Ne6 $1 40. Ne5+ Ke7 {Strongly threatening ...bxa4.} 41. Nxc6+ Kd6 42. Nb4 Nxd4 43. Nxa6 {Nb4 is the strong threat.} Nxb3 44. axb5 {Black must now prevent Kf4.} d4 $1 45. Kf2 {aiming for Ke2.} d3 46. b6 d2 $1 47. b7 d1=Q {( -> ...Qd4+)} 48. b8=Q+ Ke7 49. Qe5+ Kf7 50. Nc7 ({Don't take} 50. Qf4+ $6 Kg6 $16) 50... Qd4+ 51. Qxd4 Nxd4 {KN-KN} 52. Ke3 Nc6 53. Nd5 Kg6 54. h4 Ne5 55. Kf4 Nd3+ 56. Ke4 Nc5+ 57. Kd4 Nd7 58. Nf4+ Kf6 59. Kd5 Nb6+ 60. Kc5 Na4+ 61. Kd4 Nb2 62. Nd5+ Kg6 (62... Kf7 $11) 63. Nc3 (63. Ke4 $1 $14) 63... Kf6 64. Ne4+ Kg6 65. Nf2 Na4 66. Nd3 Nb6 67. Nf4+ Kf7 68. Nd5 Nd7 69. Ke4 Ke6 70. Nf4+ Kf6 71. Kd5 Nb6+ 72. Kc5 Na4+ 73. Kd6 Nb2 74. Nd5+ Kg7 75. Ke6 Nc4 {[%cal Oh6h5]} 76. Ne7 Nd2 {[%cal Oh6h5]} 77. Nf5+ Kg6 78. Nd4 Nc4 79. Nc6 {White threatens Ne5+ and mate.} Ne3 80. Ne5+ $1 Kg7 {[%cal Oh6h5]} 81. Ke7 ({Better is} 81. h5 $1 $14) 81... Ng2 (81... h5 $11) 82. h5 $1 $14 Nf4 83. Nf3 Nd5+ 84. Ke6 Ne3 85. Ne5 Nc2 86. Nc4 {To avoid Ne3} Nd4+ 87. Kd5 Nf3 88. Nd6 (88. Ke4 $1 $14 Ne1 89. Kf5) 88... Nh2 $11 89. Nf5+ Kh7 (89... Kf6 $11) 90. Ne3 $14 {White wants to mate with Ke4.} Nf3 91. Ke6 Ng5+ 92. Kf6 Ne4+ 93. Kf5 Nf2 94. Nd5 Kg7 95. Nf6 (95. Nc3 $14 {deserves consideration.}) 95... Nd1 (95... Kf7 $11) 96. Ne8+ Kh7 97. Ke6 {Kf7 would kill now.} Ne3 98. Nf6+ $1 Kg7 99. Ke7 Nc4 100. Nd5 {Inhibits Ne3.} Ne5 101. Ne3 Nc6+ 102. Kd6 Nd8 103. Nf5+ Kh7 $1 104. Ke7 Nb7 105. Kf7 Nd8+ 106. Kf6 Nc6 107. Ne7 Nb4 108. Ng6 Nd5+ $2 {[%mdl 8192]} (108... Nd3 $14 109. Nf8+ Kg8) 109. Kf7 Ne3 110. Ne5 Nd5 {[#]} 111. Nd7 $1 Ne3 {[#]} 112. Nf6+ $1 Kh8 113. Kg6 {White mates.} Nc4 114. Kxh6 Ne5 115. g5 {[%cal Bg4g5,Bg5g6][%mdl 32]} Nf7+ 116. Kg6 Ne5+ 117. Kf5 Nf7 118. g6 Nh6+ 119. Ke4 {Weighted Error Value: White=0.10 (very precise) /Black=0.04 (flawless)} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.9"]
[White "Abdisalimov, Abdimalik"]
[Black "Karthik Venkataraman"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "2435"]
[BlackElo "2485"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,86,68,53,64,44,58,34,57,50,62,32,33,12,20,0,0,0,0,0,12,5,52,43,62,31,38,-4,0,-2,2,0,36,31,48,-76,0,-33,-13,-16,-8,-43,-47,-39,-39,-33,-30,-29,-37,-31,-27,-225,-239,-241,-233,-244,-247,-218,-224,-270,-267,-266,-267,-555,-568,-559,-548,-548,-539,-530,-498,-529,-507,-573,-474,-471,-470,-469,-454]} 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Nge2 h5 {[#] E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2.} 7. Bg5 $146 ({Predecessor:} 7. h3 Na6 8. Bg5 Nc7 9. a4 a6 10. Qd2 Rb8 11. Nc1 O-O 12. Be2 e6 13. O-O exd5 14. exd5 {0-1 (62) Gheorghiu,C (2283)-Storey,C (2220) Chess.com INT 2020}) 7... a6 {[%cal Ob7b5]} 8. a4 {Prevents b5.} Nbd7 {White is slightly better.} 9. Nc1 Ne5 10. Qd2 Nh7 11. Bh6 Bf6 12. Be2 g5 13. f4 gxf4 14. Bxf4 h4 15. O-O Rg8 (15... Qa5 $11) 16. Kh1 $14 Qa5 17. Qc2 Bd7 18. Rb1 (18. Nd3 $14) 18... Rg7 19. N1a2 Qc7 20. b4 cxb4 (20... h3 $5 {[%cal Rh3g2]} 21. g3 Ng4 $11) 21. Rxb4 Bg5 22. Bd2 (22. Bxe5 $14 {keeps the upper hand.} dxe5 23. c5) 22... Rd8 ({Better is} 22... Rb8 $17) 23. Nc1 {[%cal Oa4a5]} Nf6 24. Bxg5 Rxg5 25. Qd2 Rg6 26. Qe3 Bg4 27. Nb3 Bxe2 28. Nxe2 a5 ({But not} 28... Nxc4 29. Qa7 h3 30. Rc1 $14) 29. Rb5 Qxc4 {Hoping for ...Nfg4.} 30. Nxa5 $2 {Now White is beyond hope.} (30. Nd2 $11 {and White stays safe.} Qd3 31. Qxd3 Nxd3 32. Rxb7) 30... Qxa4 $19 31. Nc3 Qc2 {[%csl Gg6][%cal Rc2g2]} 32. Rf2 {[#]} Qd3 $40 {[%mdl 128] Black attacks with force.} 33. Qxd3 Nxd3 34. Rf3 Ne5 35. Rh3 Rc8 36. Rxb7 $2 {[#]} (36. Rb1) 36... Nxe4 $1 {[%mdl 512] aiming for ...Nf2+. Black is clearly winning.} 37. Rxh4 {Threatening mate with Rh8+.} Nf2+ 38. Kg1 {Intending Rh8+ and mate.} Nf3+ $1 39. Kxf2 {White wants to mate with Rh8+.} Nxh4 40. Nc6 Rxg2+ 41. Kf1 Rxh2 42. Rxe7+ Kf8 43. Rd7 Ra8 {Weighted Error Value: White=0.35/Black=0.11 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.10"]
[White "Raahul V S"]
[Black "Divya Deshmukh"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2478"]
[BlackElo "2301"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,117,26,63,56,61,71,60,56,59,40,52,59,72,47,128,91,119,130,141,116,169,130,233,212,348,325,283,164,366,380,374,362,363,350,410,372,358,137,144,143,139,136,143,146,145,139,140,145,174,177,207,214,183,171,180,180,180,180,184,165,187,143,169,169,521,518,489,456,1041,994,1051,762,1000,986,928,875,949,968,1219,1187,1152,1110,948,637,729,1015,991,968,936,918,897,900,876,853,792,730,2963,2369,5035,4133,29979,29980,29980,29981,29979,29977,5957,5425,1795,1461]} 1. d4 d5 2. c4 dxc4 3. e4 b5 4. a4 c6 5. Nc3 Qb6 6. axb5 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4.} cxb5 7. b3 e6 8. bxc4 {White is slightly better.} Bb4 9. Bd2 {aiming for c5.} bxc4 10. Bxc4 Ne7 11. Nf3 $36 {[%mdl 2048] [#] White has some pressure.} Bb7 $146 (11... O-O $14) ({Predecessor:} 11... O-O 12. O-O a5 13. d5 Ba6 14. Na4 Qd8 15. Bxa6 Rxa6 16. dxe6 Rxe6 17. Bxb4 axb4 18. Qxd8 Rxd8 {½-½ (34) So,W (2772)-Dominguez Perez,L (2752) Berlin 2022}) 12. Na4 $16 Bxd2+ 13. Qxd2 Qc7 14. Rc1 O-O (14... Bxe4 $16 15. Bxe6 Bc6) 15. Nc5 {[%cal Oc5e6]} Bc6 (15... Bc8 $16 16. O-O Qd8) 16. O-O Qd6 (16... Nd7 $142) 17. Ng5 $18 Nd7 {[#]} 18. Qc2 (18. Ncxe6 $142 $1 {[%mdl 512]} fxe6 19. Qd3) 18... g6 $2 {[#]} (18... Nxc5 $2 19. e5 Be4 20. exd6 $18) (18... Qxd4 {was worth a try.} 19. Ngxe6 (19. e5 Qh4 $11) 19... fxe6 20. Bxe6+ Kh8) 19. Ncxe6 $1 {[%mdl 512]} fxe6 20. Bxe6+ Kg7 21. d5 {Chess con chili.} Nf6 22. dxc6 h6 {[#]} 23. Rcd1 $2 Qxc6 $16 24. Qxc6 Nxc6 {[#]} 25. Bd5 $1 {White is more active.} hxg5 26. Bxc6 Rac8 27. Rd6 Rc7 28. f3 Rfc8 29. Ba4 Nh5 30. Rfd1 Nf4 31. Kf2 {Inhibits Ne2. Black must now prevent g3.} Rh8 32. h3 Rb8 33. R1d2 Rb6 34. e5 Re7 35. Rd7 (35. g3 $18 Ne6 36. R2d5) 35... Rbe6 36. g3 Nxh3+ (36... Nh5 {is tougher.} 37. R2d5 Kf8 38. Rxe7 Kxe7 39. Rd7+ Kf8) 37. Kg2 $18 {And now Rxe7+ would win.} g4 38. f4 {Hoping for Bb3.} Kh6 (38... Rxd7 $142 39. Bxd7 Re7 40. Bxg4 Ng5 41. fxg5 Rxe5 42. Rd7+ Kf8 43. Rxa7 Rxg5) 39. Bd1 Rxd7 40. Rxd7 {[%mdl 4096] Endgame KRB-KRN} Ng5 41. Bxg4 Re8 42. Rxa7 {Threatens to win with Bd7.} Ne4 43. Kf3 Nd2+ 44. Ke3 Nf1+ 45. Kf2 Nd2 46. Rd7 Nc4 47. e6 Nb6 48. Rf7 Nc8 49. Bh3 Nd6 50. Rd7 Ne4+ 51. Kf3 Nc5 52. Rd6 g5 53. Rc6 Nb3 54. Ke4 gxf4 55. gxf4 Nd2+ 56. Ke3 Nb3 57. Bf5 Re7 58. Be4 Na5 59. Rc5 {Weighted Error Value: White=0.26 (precise) /Black=0.45} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.11"]
[White "Dhananjay S"]
[Black "Mirzoev, Azer"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2310"]
[BlackElo "2468"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,30,45,29,26,25,20,27,27,16,30,21,33,14,16,6,49,2,18,7,7,-10,-7,-44,-43,-44,-41,-46,-34,-77,-79,-77,-27,-114,-127,-136,-107,-146,-114,-142,-135,-214,-207,-191,-154,-154,-162,-151,-138,-353,-338,-358,-314,-500,-499,-497,-464,-496,-495,-470,-489,-529,-479,-551,-551,-551,-551,-747,-724]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Nf3 g6 6. cxd5 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} cxd5 7. Be2 Bg7 8. O-O {The position is equal.} O-O 9. Ne5 e6 10. Qb3 (10. f4 {keeps more tension.} b5 11. Bd2 Nbd7 12. Qb3 Nb6 13. a4) 10... Nbd7 11. Nxd7 Nxd7 12. Bd2 Qb6 (12... b6 $11) 13. Qc2 {[#]} (13. Na4 $14 Qxb3 14. axb3) 13... Qa7 $146 ({Predecessor:} 13... Qd6 14. a4 e5 15. e4 Qc7 16. Qb3 dxe4 17. Nxe4 exd4 18. Bb4 Rd8 19. Bd6 Qb6 {1-0 (34) Hansen,L (2575)-Bromann,T (2399) Aalborg 2007}) 14. Na4 b5 15. Nc3 Bb7 16. b4 e5 $1 17. dxe5 d4 18. exd4 Qxd4 19. e6 (19. a4 $15 {might be stronger.}) 19... fxe6 $17 20. Rad1 {[#]} Nb6 ({Better is} 20... Ne5 $1 $17 21. Be1 Qf4) 21. Qb3 (21. Qd3 $1 $11 {keeps the balance.}) 21... Nc4 22. Be1 {[#]} Qf4 $40 {[%cal Ob7g2][%mdl 128] Strongly threatening ...Bxg2! Black is out for blood.} 23. Rd3 Rad8 24. Rg3 Be5 {Black is much more active.} 25. Bxc4 (25. a4 $17 {was called for.}) 25... bxc4 $19 ({Stronger than} 25... Qxc4 26. Qxc4 bxc4 27. Re3 $17) 26. Qc2 Qf5 27. Qxf5 exf5 {[%cal Be6f5,Bf5f4][%mdl 32]} 28. Re3 Rfe8 29. Na4 $2 {This move loses the game for White.} (29. a4 $17) 29... f4 30. Ra3 Bc6 {White must now prevent ...Bxa4.} 31. Nc5 (31. Nc3 $142 f3 32. g4) 31... Bb2 {This bishop pair is nice. Black is clearly winning.} 32. Rh3 f3 33. gxf3 c3 34. Bxc3 Bxc3 35. Rc1 Bxb4 {Hoping for ...Ba3.} 36. Nxa6 Re1+ 37. Rxe1 Bxe1 38. Rh4 Bxf3 {Weighted Error Value: White=0.36/Black=0.11 (very precise)} 0-1

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.12"]
[White "Rios, Cristhian Camilo"]
[Black "Aaryan Varshney"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2449"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,54,0,0,0,0,0,0,0,0,0,0,0,0,7,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 {The position is equal.} 8. Nf3 {Hoping for 0-0. E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} cxd4 9. Nxd4 Nd7 10. Bf4 Qh4 11. g3 Qh5 12. O-O g5 13. cxd5 Bxc3 14. bxc3 {[%cal Od5e6]} exd5 15. e6 {15.Be3 is a critical line.} gxf4 16. exd7 Bxd7 17. Bxe4 dxe4 18. Qxe4 fxg3 19. fxg3 b6 20. Nf5 {[#] Ne7+ is the strong threat.} Rae8 21. Qd5 Bxf5 (21... Re2 $2 {[#]} 22. Ne7+ $1 {[%mdl 512]} Rxe7 23. Qxh5 $18) 22. Rxf5 Qe2 23. Raf1 {aiming for Rg5+.} Qe3+ 24. R1f2 {[%cal Rf5f7]} Qe1+ {[#]} 25. Rf1 $146 ({Predecessor:} 25. Kg2 Qe4+ 26. Qxe4 Rxe4 27. Rg5+ Kh8 28. Rgf5 Kg8 29. Rg5+ Kh8 30. Rgf5 Kg8 {½-½ (30) So,W (2770)-Nakamura,H (2736) Lichess.org INT 2020}) 25... Qe3+ 26. R1f2 {[%cal Rf5f7]} Qe1+ 27. Rf1 Qe3+ {An even fight not without its subleties.  Weighted Error Value: White=0.00 (flawless) /Black=0.00 (flawless)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.13"]
[White "Nigmatov, Ortik"]
[Black "Manish Anto Cristiano F"]
[Result "1-0"]
[ECO "B99"]
[WhiteElo "2445"]
[BlackElo "2236"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,127,29,29,37,19,26,26,22,18,22,19,34,24,33,20,28,16,21,17,18,15,22,15,35,37,22,28,22,25,36,25,35,34,22,25,21,23,20,7,57,56,72,75,74,81,106,32,29,47,59,56,35,25,103,106,230,230,230,240,270,254,255,230,262,273,263,255,194,116,121,0,102,113,170,38,40,47,47,47,491,491,483,475,1552,1726,11977,10793,29959,29966,29978,29979,29982,29983,29983,29984,29993,29988,29986,29986,29988,29989,29989,29988,29988,29988]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 11. Bxf6 Nxf6 12. g5 Nd7 13. f5 O-O {B99: Sicilian Najdorf: 6 Bg5 e6 7 f4 Be7 8 Qf3 Qc7 9 0-0-0 Nbd7.} 14. Rg1 (14. f6 gxf6 15. gxf6 Nxf6 $17) 14... b4 $1 15. Nce2 e5 $1 {[#] White has an edge.} 16. f6 $1 exd4 17. fxe7 Re8 18. e5 (18. Rxd4 Ne5 19. Qe3 a5 $15) 18... Ra7 19. e6 ({Of course not} 19. Nxd4 Nxe5 20. Qf4 Qc5 $17) 19... fxe6 20. g6 {White threatens Qf7+ and mate. Chess con chili.} ({Much worse is} 20. Nxd4 Ne5 21. Qg3 Qb6 $15) 20... hxg6 21. Nf4 Ne5 22. Qg3 Qxe7 {[%cal Og6g5] White must now prevent ...g5!} (22... Rxe7 23. Nxg6 Rf7 24. Bd3 $16) 23. Nxg6 Qf6 24. Rxd4 Nxg6 {[#]} 25. Qxg6 $1 Qxg6 26. Rxg6 Rf8 27. Bd3 d5 28. Rxb4 {[#]} e5 $146 ({Predecessor:} 28... a5 29. Ra4 Bd7 30. Rag4 Bc8 31. Rg2 Rf4 32. R6g5 Re7 33. b3 Kf8 34. a4 Bb7 {½-½ (56) Bobarnac,D (2315)-Ristea,T (2363) ICCF email 2018}) 29. Rd6 e4 30. Be2 Rf2 {[%csl LRe2,LRh2]} 31. Kd1 {And now Rd8+ would win.} Rd7 {To avoid Rd8+} (31... Bf5 $1 $11) 32. Rc6 $14 Bb7 33. Rcb6 Bc8 34. Rb8 $1 $36 {[%mdl 2048] White is in control.} Rf8 35. Bg4 ({Better is} 35. Ra8 $16) 35... Rdd8 36. Rxc8 Rxc8 37. Bxc8 Rxc8 $11 {[%mdl 4096] Endgame KR-KR} 38. Rd4 e3 (38... Kf7 $11 {keeps the balance.}) 39. Rxd5 $16 {Hoping for Re5.} e2+ (39... Kf7 $16) 40. Kxe2 $18 (40. Ke1 $6 Rxc2 41. Rd2 Rc4 $16) 40... Rxc2+ 41. Rd2 Rc6 42. Kd3 $1 Kf7 43. Rc2 Rh6 44. Kc4 $1 Ke7 45. Kb4 {Ka5 is the strong threat.} Rh5 46. Rg2 (46. Rd2 $1 $18) 46... Kd8 $16 47. Rc2 ({Don't play} 47. Rxg7 Rxh2 48. Kc3 Kc8 $14) (47. Ka3 $16) 47... Kd7 (47... Ke7 $1 $11) 48. Ka4 Kd6 (48... Kd8 $16 {was worth a try.} 49. a3 Ke7) 49. b4 ({White should try} 49. Rg2 $18) 49... Kd7 $1 $14 50. a3 Rh3 51. Rg2 Kc6 $2 {[%mdl 8192]} (51... Kc7 $14) 52. Rg3 $1 $18 Rh5 {[#]} 53. h4 $1 Rxh4 {[#]} (53... Kb7 $142 54. Rxg7+ Kb8) 54. Ka5 $1 Rh7 55. Kxa6 {Threatening mate with b5+.} Kc7 56. b5 {[%cal Bb4b5,Bb5b6][%mdl 32] White mates.} Kb8 57. a4 {[%cal Ba3a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Rh6+ 58. b6 g6 59. a5 Ka8 60. Rg5 Kb8 61. Kb5 Kc8 62. a6 Rh1 63. Rc5+ Kd7 64. a7 {Weighted Error Value: White=0.10 (very precise) /Black=0.37} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.14"]
[White "Shyaamnikhil P"]
[Black "Srija, Seshadri"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2442"]
[BlackElo "2219"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,0,24,-8,47,48,49,61,76,37,82,56,60,29,57,60,51,38,39,60,64,52,29,33,41,40,44,26,52,33,141,103,287,126,670,661,902,856,831,718,780,773,783,778,774,772,740,758,745,754,744,691,697,719,727,717,719,710,733,733,2311,1489,29992,29993]} 1. Nf3 d5 {[%cal Bd7d5,Bd5d4][%mdl 32]} 2. g3 g6 3. c4 d4 4. Bg2 Bg7 5. O-O e5 6. d3 {A09: Réti Opening: 1 Nf3 d5 2 c4.} c5 ({Better is} 6... Ne7 $11) 7. e3 $14 Nc6 8. exd4 {White is slightly better.} cxd4 9. Re1 {[%cal Ob2b4]} (9. b4 $5) 9... Nge7 {[#]} (9... f6 $14 {deserves consideration.}) 10. b4 $1 $16 Nxb4 11. Qa4+ Nbc6 12. Nxe5 $1 O-O $1 13. Nxc6 Nxc6 14. Ba3 Re8 15. Rxe8+ Qxe8 16. Nd2 {[%cal Bb1d2,Bd2e4,Be4g5][%mdl 32]} Bd7 $1 {[#]} 17. Qb3 $146 ({Predecessor:} 17. Ne4 Ne5 18. Qb3 Bc6 19. Re1 Qe6 20. h3 Qf5 21. f4 Nd7 22. Nd6 Qa5 23. Bb4 {0-1 (32) Sutkovic,D (2243)-Dumpor,A (2301) Donji Vakuf 2001}) 17... b6 18. Ne4 $36 {[%mdl 2048] White has some pressure.} Qe5 19. f4 Qh5 {White stays focused until the end.} (19... Qa5 $14) 20. Ng5 Na5 $2 21. Qb4 (21. Qb2 $18 {has better winning chances.} Rc8 22. Bf3) 21... Bc6 {[%mdl 8192]} (21... Bf8 $16 22. c5 {[#]} Bxc5 $1) 22. Qe7 $18 Rf8 23. Bxc6 Nxc6 24. Qb7 Nd8 25. Qd7 Qe2 26. Bxf8 Qe3+ 27. Kh1 Bxf8 28. Qxd8 h6 29. Ne4 Qxd3 30. Qd5 Qf3+ 31. Kg1 {aiming for Nf6+.} Qe3+ 32. Kg2 Qe2+ 33. Nf2 Bc5 34. Rf1 {[%cal Ba1f1,Bf1e1,Be1e8][%mdl 32]} Qxa2 35. Re1 {Threatening mate with Re8+.} Kg7 36. Re8 {Weighted Error Value: White=0.20 (precise) /Black=0.70} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.15"]
[White "Shiva Pavan Teja Sharma U"]
[Black "Mosadeghpour, Masoud"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2022"]
[BlackElo "2511"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,26,27,25,25,22,43,29,39,24,33,20,20,22,31,27,27,36,53,25,18,-18,38,-14,12,-23,-12,-29,0,-30,-35,-48,-52,-52,-53,-46,-26,-38,0,-13,14,0,0,-19,-16,-29,-52,-32,0,0,0,0,36,48,68,0,0,0,193,218,219,218,227,208,223,210,275,27,25,26,28,0,0,0,32,0]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Ngf6 5. Nc3 g6 6. a5 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Bg7 7. O-O O-O 8. Re1 a6 9. Bf1 e5 10. d3 Nb8 11. Nd5 Nxd5 12. exd5 {[#]} Nd7 $146 ({Predecessor:} 12... h6 13. Nd2 f5 14. f4 exf4 15. Nc4 Bd4+ 16. Kh1 Qh4 17. Nd2 g5 18. Nf3 Qh5 19. Nxd4 Qxd1 20. Rxd1 cxd4 {½-½ (74) Sadzikowski,D (2504)-Edouard,R (2653) Sitges 2019}) 13. c4 h6 14. Nd2 f5 15. g3 Nf6 (15... g5 $11) 16. Bg2 (16. b4 $14) 16... g5 17. Ra3 Bd7 18. Ra2 {[%cal Ob2b4]} b5 19. b4 (19. axb6 $5 Qxb6 20. b3 $11) 19... cxb4 20. Qb3 Rb8 (20... bxc4 21. Nxc4 Ne8 22. Bd2 $11 (22. Qxb4 Rb8 $11)) 21. Qxb4 bxc4 22. Qxc4 Bb5 23. Qb3 Be8 24. Qa3 Bf7 25. Nc4 Bxd5 26. Bxd5+ Nxd5 {[%cal Bf6d5,Bd5c7,Bc7b5,Bb5d4][%mdl 32]} 27. Bd2 Rf6 28. Rb2 f4 29. Reb1 Rxb2 30. Qxb2 Kh7 31. Qb7 $1 {[%csl LRa6,LRd5]} Nc7 32. g4 {White is more active.} (32. Rb6 $14) 32... Nb5 33. Qxa6 Qd7 34. h3 $1 $18 ({Don't blunder} 34. Rxb5 $2 Qxg4+ 35. Kf1 Qd1+ 36. Be1 (36. Kg2 {gets mated.} f3+ 37. Kh3 Qf1+ 38. Kg4 Qg2+ 39. Kh5 Qh3#) 36... Qxd3+ 37. Kg1 Qd1 $19) 34... Nd4 {aiming for ...d5.} 35. Qb7 Qxb7 36. Rxb7 {Hoping for a6.} d5 37. Nxe5 Re6 {[#]} 38. Kf1 $2 Kg8 $11 (38... Rxe5 $2 39. Bc3 Nc6 40. Bxe5 Nxe5 41. a6 $18) 39. Rb8+ Kh7 40. Rb7 {[%cal Od2c3] Threatens to win with Bc3!} Kg8 (40... Rxe5 $2 41. Bc3 Nc6 42. Bxe5 Nxe5 43. a6 $18) 41. Rb8+ Kh7 42. Rb7 {Weighted Error Value: White=0.20 (precise) /Black=0.20 (precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.16"]
[White "Tahbaz, Arash"]
[Black "Imocha, Laishram"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2469"]
[BlackElo "2049"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,61,-5,17,25,19,10,13,10,25,22,21,16,15,22,25,17,27,24,44,15,69,37,81,41,107,120,126,127,140,57,108,98,99,34,341,205,326,327,334,341,334,341,320,329,413,410,399,372]} 1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. Re1 a5 9. a4 {C00: French: Unusual White 2nd moves.} Rb8 {[#]} 10. b3 $146 ({Predecessor:} 10. e5 Nd7 11. Nb1 b5 12. axb5 Rxb5 13. Nc3 Rb8 14. Rb1 Nb6 15. h4 Bd7 16. Bg5 Nd4 {1-0 (33) Berend,E (2328)-Hoolt,S (2274) Germany 2008}) 10... b6 11. Bb2 {The position is equal.} d4 12. Nc4 Ba6 13. Nfe5 Nb4 14. f4 Ne8 15. Qe2 (15. c3 {feels hotter.} dxc3 16. Bxc3 f6 17. Bxb4 Qd4+ 18. Kh1) 15... f6 16. Nf3 Nc7 17. h4 Re8 (17... e5 $11) 18. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} Bf8 (18... Rf8 $14) 19. g5 f5 (19... Bd6 $14) 20. Nfe5 $16 Bd6 21. Nxd6 {White is more active.} Qxd6 22. Ba3 (22. Qh5 Nxc2 23. Qf7+ Kh8 $17) ({Better is} 22. Rad1 $16) 22... Bb7 ({Black should try} 22... Nc6 $14) 23. Bxb4 (23. Qh5 $6 Nxc2 24. Qf7+ Kh8 $11) 23... cxb4 24. Qh5 (24. Qf2 $16) 24... fxe4 $2 {[%mdl 8192] A mistake that costs the game.} (24... Rf8 $14) 25. Qf7+ $18 (25. dxe4 Rf8 $14) ({Not} 25. Bxe4 Bxe4 26. Qf7+ (26. dxe4 Qc5 $11) (26. Rxe4 Rf8 $14) 26... Kh8 $18) 25... Kh8 {[#]} 26. Qxe8+ {[%mdl 512]} Nxe8 27. Nf7+ Kg8 28. Nxd6 Nxd6 29. dxe4 Rf8 30. Rad1 ({Less strong is} 30. e5 Bxg2 31. exd6 (31. Kxg2 Nf5 $16) 31... Bd5 $18) 30... Rxf4 31. Rxd4 {Weighted Error Value: White=0.13 (very precise) /Black=0.53} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.17"]
[White "Gholami Orimi, Mahdi"]
[Black "Kumar, Gaurav"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2420"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,49,0,27,13,10,20,17,15,62,56,56,9,48,38,42,31,47,34,100,102,102,100,100,95,138,122,159,147,143,147,147,80,147,147,141,147,149,151,135,127,589,577]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 a5 6. Nf3 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} Bxc3 7. Bxc3 Ne4 8. Qc2 {The position is equal.} f5 (8... Nxc3 $11 9. Qxc3 b6) 9. Bd3 $14 Nxc3 10. Qxc3 (10. bxc3 $14 b6 11. e4) 10... d6 {[#]} 11. e4 $146 ({Predecessor:} 11. Qc2 Nc6 12. a3 e5 13. d5 Ne7 14. Be2 a4 15. e4 fxe4 16. Qxe4 Bf5 17. Qe3 {0-1 (42) Korenika,M (2222)-Damjanovic,M (2307) Croatia 2009}) 11... Nc6 12. exf5 exf5 13. O-O-O d5 {[#]} (13... a4 $14) 14. a3 $1 $16 Ne7 15. Rhe1 c6 16. c5 f4 (16... Ng6 $142) 17. Re5 {White is much more active.} Bf5 18. Ng5 {Hoping for Rde1.} Ng6 19. Bxf5 {[%cal Bd3f5,Bf5h7,Bh7c2][%mdl 32]} Nxe5 20. Bxh7+ ({Of course not} 20. Ne6 $6 Qh4 21. Nxf8 Rxf8 $11) 20... Kh8 21. Ne6 Qh4 {[%cal Of8f7]} 22. Nxf8 ({Don't take} 22. dxe5 $6 Kxh7 23. Nxf8+ Rxf8 $14) 22... Rxf8 {[#]} 23. Bc2 $1 (23. dxe5 $6 Kxh7 24. f3 Re8 $14) 23... Ng4 24. Rf1 ({Much less strong is} 24. Qxa5 $6 Qxf2 25. Qd2 Qxd2+ 26. Kxd2 g5 $14) 24... Nxf2 $2 {[%mdl 8192]} (24... f3 $16 {is a better chance.} 25. gxf3 Nxf2) 25. Qe1 {Weighted Error Value: White=0.04 (flawless) /Black=0.56} 1-0

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.18"]
[White "Arnav Maheshwari"]
[Black "Gusain, Himal"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "1934"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,96,-8,-15,-20,-12,-15,-56,-47,-42,-52,-56,0,-9,0,0,0,0,0,0,0,0,8,0,0,0,64,50,83,39,52,17,23,32,49,0,51,53,37,57,172,175,158,164,132,143,147,187,189,171,158,75,82,0,0,0,0,0,0,0,0,0,0,0,73,57,61,68,61,68,81,43,62,0,0,0,0,0,0,0,0,0,0,-89,-89,-104,-89]} 1. d4 d5 2. c4 e6 3. g3 dxc4 4. Bg2 c6 5. Nf3 b5 6. a4 Bb7 7. O-O Nd7 {D30: Queen's Gambit Declined: Systems without Nc3.} 8. Qc2 Ngf6 9. e4 (9. Nfd2 $11 {feels stronger.}) 9... Be7 {Black is slightly better.} 10. Nc3 a6 11. Ng5 {[#]} h6 $146 (11... e5 $15 12. dxe5 Nxe5) ({Predecessor:} 11... b4 12. e5 Nd5 13. Nce4 a5 14. Qxc4 h6 15. Nh3 Ba6 16. Qxc6 Bxf1 17. Bxf1 O-O {0-1 (44) Ilken,Z (2274)-Krzyzanowski,A (2361) ICCF email 2017}) 12. Nxe6 $1 $11 fxe6 13. e5 Nd5 14. Qg6+ Kf8 15. Nxd5 cxd5 16. Qxe6 Nb6 17. a5 Na4 18. Qf5+ Ke8 (18... Kg8 $11) 19. Bh3 $14 (19. e6 Qd6 $11) 19... Bc8 20. e6 $36 {[%csl Ge6][%cal Rf5f7][%mdl 2048] White is pushing.} Qd6 $1 21. Qf7+ Kd8 22. Qxg7 Rf8 23. Qxh6 (23. Re1 $1 $14) 23... Kc7 ({Black should play} 23... Bb7 $11) 24. Qe3 $1 {[%mdl 1024] White has compensation.} Rh8 25. Bf5 {b3 is the strong threat.} Bb7 (25... Rf8 $14 26. g4 Ra7) 26. b3 Raf8 27. Qf3 {aiming for Bf4.} Rxf5 (27... cxb3 $2 28. Bf4 $1 $18) 28. Qxf5 {The board is on fire.} Rf8 29. Qc2 Qxe6 {[%cal Oa4c5]} 30. bxa4 {Black must now prevent Bd2.} b4 31. Qh7 (31. Bf4+ Rxf4 32. gxf4 Qg4+ 33. Kh1 Qf3+ 34. Kg1 Qg4+ 35. Kh1 Qf3+ 36. Kg1 Qg4+ $11) (31. Bd2 $142) 31... Rf7 32. Qh6 (32. Qg8 $16 {Hoping for Bf4+.} Bd6 33. Bg5) 32... Qxh6 $11 33. Bxh6 c3 34. Rfb1 Bc8 35. Rb3 Bf5 36. Bf4+ Kd7 37. Re1 Bc2 {[#]} (37... Bd3 $11) 38. Rxe7+ $1 $16 Rxe7 39. Rxb4 {[%mdl 4096] Endgame KRB-KRB} Re1+ 40. Kg2 Be4+ 41. Kh3 {Threatens to win with Rb7+.} Bf5+ 42. Kh4 ({Better is} 42. g4 $14 Re4 43. Rb7+ (43. gxf5 Rxf4 44. Rb7+ Kd6 $11) 43... Kd8 44. Bg5+ (44. gxf5 Rxf4 45. Rb8+ Kd7 $11) 44... Kc8 45. f3 $1 Bxg4+ 46. Kg3 Bxf3 47. Rb3) 42... Re4 $1 $11 43. Rb7+ $1 Kd8 $1 44. Rb8+ $1 (44. Kg5 $2 Rxf4 $1 45. Kxf4 c2 $1 46. Kxf5 (46. Rb8+ $2 Bc8 $19) 46... c1=Q $19) 44... Kd7 45. Rb7+ $1 (45. Kg5 $2 Rxf4 $1 46. Kxf4 c2 $1 47. Kxf5 (47. Rb7+ $2 Kc8 $19) 47... c1=Q 48. Rb7+ Kc8 $19) 45... Kd8 $1 46. Rb8+ $1 ({Not} 46. Kg5 $2 Rxf4 $1 47. Kxf4 c2 $1 48. Kxf5 (48. Rb8+ $2 Bc8 $19) 48... c1=Q $19) 46... Kd7 47. Rb3 ({But not} 47. Kg5 $2 {[#]} Rxf4 $1 48. Kxf4 c2 $1 49. Kxf5 (49. Rb7+ $2 Kc8 $19) 49... c1=Q 50. Rb7+ Kc8 $19) (47. Rb7+ $1 $11 Kd8) 47... c2 $17 48. Rc3 Rxd4 {White really could win this.  Weighted Error Value: White=0.12 (very precise) /Black=0.12 (very precise)} 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.19"]
[White "Imtiaz, Islam Bora"]
[Black "Shahil Dey"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2004"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,61,7,44,0,3,0,0,0,6,1,20,0,64,63,66,60,77,66,70,82,79,79,79,74,143,136,135,121,145,142,236,230,182,183,230,211,325,158,322,111]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Be2 Bd6 7. O-O O-O 8. b3 b6 9. Bb2 Bb7 10. Bd3 c5 11. cxd5 exd5 12. Rc1 Rc8 13. Ne2 {E14: Queen's Indian: Classical Variation (4 e3).} (13. dxc5 $14 {deserves consideration.} bxc5 14. Nb5) 13... Qe7 $11 14. Ng3 {[#] Threatens to win with Nf5.} g6 {Prevents Nf5.} 15. Qe2 {[#] The position is equal.} Rcd8 $146 ({Predecessor:} 15... cxd4 16. Nxd4 Nc5 17. Bb1 Ba6 18. Qf3 Be5 19. Rfd1 Rfd8 20. Nge2 Nfe4 21. Nf4 Ng5 22. Qg4 Bg7 {½-½ (52) Gausel,E (2501)-Kvisvik,B (2289) Norway 2012}) 16. Rfd1 Ne4 17. Bb5 Nb8 (17... f5 $11) 18. dxc5 $14 Nxg3 19. hxg3 bxc5 20. Qc2 a6 21. Bf1 {White is more active.} Nd7 22. Ne1 (22. Qc3 f6 $11) 22... Rc8 23. Nd3 $40 {[%mdl 128] White attacks with force.} ({Much worse is} 23. Qc3 Be5 24. Qc2 Rc7 $11) 23... c4 {[#]} (23... g5 $142) 24. Qc3 $1 $16 {[%csl Gb2][%cal Rc3h8]} f6 25. Nf4 {[%cal Rb3c4]} Be5 26. Qd2 Bxf4 (26... Nb6 $16 {was called for.} 27. Bd4 Qd6) 27. gxf4 $18 cxb3 28. axb3 Rfd8 (28... Rxc1 {was necessary.} 29. Rxc1 Qd6) 29. Qd4 Kg7 (29... Nf8 $142 30. Qxf6 Qxf6 31. Bxf6 Rxc1 32. Rxc1 Rc8 33. Rxc8 Bxc8) 30. g3 (30. g4 $18) 30... Qe4 $2 (30... Nf8 $16 31. Qa7 Ne6 32. Bxa6 Rxc1 33. Rxc1 Rd7) 31. Bh3 $2 {Weighted Error Value: White=0.18 (very precise) /Black=0.35} (31. Rxc8 $18 {is more deadly.} Bxc8 32. Qxd5 Qxd5 33. Rxd5) 1/2-1/2

[Event "1st Guwahati GM Open 2022"]
[Site "Guwahati"]
[Date "2022.03.20"]
[Round "10.20"]
[White "Borgaonkar Akshay"]
[Black "Kaustuv, Kundu"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1985"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.03.15"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,-27,2,1,0,-2,13,15,13,20,35,44,65,18,23,17,26,29,35,29,19,17,32,22,23,-2,0,0,0,-25,0,-52,-43,-43,-34,-96,-91,-116,-123,-98,-24,-94,-75,-75,-70,-70,-35,-71,-75,-61,-63,-58,-89,-70,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-290,-30,-382,-222,-827,-820,-783,-773,-29978,-5197]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 g6 4. c4 Bg7 5. Ngf3 dxc4 (5... Ne4 $5 {[%cal Re4g5]}) 6. Qa4+ {D00: 1 d4 d5: Unusual lines.} c6 7. Qxc4 (7. Nxc4 $2 b5 8. Qa5 bxc4 $19) 7... O-O 8. e4 {[#] The position is equal.} h6 $146 ({Predecessor:} 8... Nbd7 9. Be2 Nb6 10. Qc2 Bg4 11. Rd1 Re8 12. O-O Rc8 13. Nb3 Qc7 14. h3 Bxf3 15. Bxf3 {1-0 (39) Casartelli,F (1811)-Villalba,F (1650) Crema 2004}) 9. Be3 Nbd7 10. h3 {Prevents Ng4.} Re8 11. Be2 {White is more active.} (11. Qb3 $14 {was preferrable.}) 11... e5 $11 12. dxe5 Nxe5 13. Nxe5 Rxe5 14. O-O Qe8 {[%cal Rf6e4]} 15. Bd3 Re7 16. Qc2 b6 17. Rfe1 c5 18. Nc4 Ba6 19. f3 Nd5 (19... Rd8 {is interesting.} 20. Rad1 Nd5 21. Bd2 Nc7 22. Bf1 Red7) 20. Bd2 (20. exd5 $11 Bxc4 21. Be4 Bxd5 22. Bxd5) 20... Nb4 $15 21. Bxb4 cxb4 22. Qb3 {[#]} ({White should try} 22. Ne3 $15 Rc8 23. Qb3 Bxd3 24. Qxd3) 22... Rd8 $1 $17 23. Rad1 Qb5 24. Bf1 Qc5+ (24... Rxd1 $17 25. Rxd1 Rd7 26. Rxd7 Qxd7) 25. Kh1 (25. Ne3 $11 {remains equal.} Rxd1 26. Rxd1) 25... Rxd1 26. Rxd1 Bxc4 27. Bxc4 Be5 28. Rd5 {[#]} Qf2 29. Rxe5 Rxe5 30. Bxf7+ {[%mdl 4096] Endgame KQR-KQB} Kg7 $1 {( -> ...Rg5)} 31. Bxg6 {White wants to mate with Qf7+.} Qe1+ ({Of course not} 31... Kxg6 32. Qg8+ Kf6 33. Qf8+ Ke6 34. Qe8+ Kf6 35. Qf8+ Ke6 36. Qe8+ Kf6 37. Qf8+ $11) ({Black should play} 31... Re7 $1 $15 32. Qxb4 Rd7) 32. Kh2 $11 {Intending Qf7+ and mate. Dancing on a razor blade.} Re7 {[%cal Be5e7,Be7c7,Bc7c2,Bc2b2][%mdl 32] Prevents Qf7+. Strongly threatening ...Qd2.} (32... Kxg6 $5 33. Qg8+ Kf6 34. Qf8+ Ke6 35. Qe8+ Kf6 36. Qf8+ Ke6 37. Qe8+ Kf6 38. Qf8+ $11) 33. Bf5 $36 {[%mdl 2048] White is pushing.} Qd2 {Inhibits Qc2.} 34. h4 $1 Qd6+ 35. Kh3 Rc7 36. Qe3 Rc2 {And now ...Qd1 would win.} 37. e5 Qd2 {[%csl Gc2][%cal Rd2g2]} 38. Qg1 ({Avoid the trap} 38. Qxd2 $2 Rxd2 39. Be6 Rxb2 $19) 38... Rxb2 (38... Rc1 $5 39. Qh2 Kf8 $11) 39. Be6 {[%mdl 8192]} (39. Qh2 $11 {and White stays safe.} Qe1 40. e6) 39... a5 $2 (39... Qc2 $19 {Threatens to win with ...Kf8.} 40. g3 Qc3) 40. g3 $2 {[%mdl 8192] White does not recover from this.} (40. Qh2 $11 Qe1 41. Bf5 (41. Qf4 Qh1+ 42. Qh2 Qxh2+ 43. Kxh2 a4 $19)) 40... h5 (40... Qf2 $142 41. Qc1 Qh2+ 42. Kg4 Qc2 43. Qxc2 Rxc2) 41. f4 $2 (41. g4 Qf2 42. Qxf2 Rxf2 43. gxh5) 41... a4 $19 {...Qc2 is the strong threat.} 42. Qh1 b3 43. Bc4 Qd7+ {[%mdl 32768] Weighted Error Value: White=0.71/Black=0.25 (precise) . An unexpected result.} 1/2-1/2

