[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.1"]
[White "Ponkratov, Pavel"]
[Black "Kanishk S K"]
[Result "1-0"]
[ECO "A54"]
[WhiteElo "2622"]
[BlackElo "1703"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,57,43,41,45,25,47,38,56,51,77,71,64,52,64,69,103,95,88,107,102,104,114,102,109,110,143,23,36,25,34,15,8,0,0,0,0,0,108,116,352,337,818,813,1531,1504,1761,1601,29981,5465]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 d6 4. d4 exd4 5. Nxd4 Be7 6. e4 O-O {A54: Old Indian Defence with Nf3, but without e4} 7. Bd3 a5 $146 ({Predecessor:} 7... Nc6 8. Nxc6 bxc6 9. O-O Be6 10. h3 Nd7 11. f4 Nc5 12. Be2 f5 13. exf5 Bxf5 14. Be3 Bf6 15. Qd2 Re8 16. Bf3 Ne4 17. Nxe4 Bxe4 {½-½ (37) Fingerov,D (2350)-Fridman,D (2592) chessassistantclub.com INT 2004}) 8. h3 Na6 {White is slightly better.} 9. Be3 Nc5 10. Bc2 Re8 11. Qf3 Be6 12. Qe2 Nfd7 13. O-O-O Bf6 14. f4 Bxd4 15. Rxd4 {Black must now prevent f5.} f6 16. g4 Bf7 17. Rg1 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 18. g5 (18. h4 $16) 18... fxg5 $11 19. f5 Qf6 20. Rxg5 Ne5 21. Kb1 a3 {Strongly threatening ...axb2.} 22. b3 Nc6 23. Qd2 g6 (23... Re7 $11 {remains equal.}) 24. h4 Nd7 $2 {[#]} (24... Re5 $16 {was necessary.}) 25. e5 $1 $18 {[%cal Re5f6][%mdl 64] Deflection} Qxe5 $2 (25... Ndxe5 26. Rf4 Qg7) 26. fxg6 {[%mdl 64] Discovered Attack} Qxe3 27. gxf7+ Kxf7 28. Rf4+ Nf6 {[#]} 29. Rxf6+ $1 {[%mdl 576] Remove Defender. Accuracy: White = 71%, Black = 27%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.2"]
[White "Swayham P Das"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1702"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,82,-13,0,-23,-3,-14,-19,-40,-56,-77,-61,-74,-57,-66,-55,-67,-56,-66,-69,-66,-66,-54,-54,-49,-34,-50,-49,-54,-37,-41,-12,-168,-90,-90,-62,-96,-85,-245,-257,-166,-74,-106,-96,-305,-308,-420,-462,-589,-589,-927,-848,-955,-955,-29986,-29987,-29985,-29986,-29992,-29993,-29998,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. a4 Be6 9. O-O O-O 10. Kh1 Nc6 11. f4 exf4 12. Bxf4 Ne5 13. Nd4 {B92: Sicilian Najdorf: 6 Be2} Rc8 14. Nxe6 (14. Bg5 h6 15. Bh4 Re8 16. Nf5 Bxf5 17. Rxf5 Rxc3 18. Bxf6 Rc5 19. Bxe5 Rxe5 20. Rxe5 dxe5 21. Bc4 Qxd1+ 22. Rxd1 Rc8 23. Bb3 Kf8 24. g4 Rc7 25. Rd5 Bg5 26. Rd1 {½-½ (26) Kononenko,D (2430)-Borovikov,V (2595) Rivne 2005}) 14... fxe6 15. Bxe5 {The position is equal.} dxe5 16. Bg4 Rc6 $146 (16... Qb6 {keeps more tension.} 17. Qf3 Kh8 18. Rab1 Bc5 19. Bh3 Qc6) ({Predecessor:} 16... Qb6 17. Qf3 Bb4 18. Qh3 Rce8 19. Rab1 Bxc3 20. bxc3 Nxe4 21. Bxe6+ Kh8 22. Qh4 Nd2 23. Rxf8+ Rxf8 24. Rd1 Qxe6 25. Qb4 Qf5 26. h3 Ne4 {0-1 (26) Dalemans,D (1802)-Lach,A (2035) Herceg Novi 2008}) 17. Bf3 Qb6 18. Qc1 Qc7 19. Qb1 g6 20. Qa2 Kg7 21. Rac1 Bb4 22. Ne2 h5 23. c3 Bc5 24. b4 Be3 25. Rcd1 Rd6 26. Qb3 g5 {Hoping for ...g4.} 27. g3 $2 (27. c4 $11 Rxd1 28. Rxd1) 27... g4 (27... Ng4 $1 $19 {[%cal Rg4f2] aiming for ...Nf2+.} 28. Kg2 Nf2 $1 {[%mdl 512]} 29. Rxd6 Qxd6 30. Bxh5 g4) 28. Bg2 $17 Rfd8 29. Rxd6 Qxd6 30. Nc1 $2 {[#]} (30. a5 $17 {was necessary.}) 30... h4 $1 $19 {[%cal Rh4h3][%mdl 512]} 31. gxh4 {[#]} Rh8 (31... Nh5 $1 $19 {[%cal Rh5f4] and Black stays clearly on top. Strongly threatening ...Nf4.} 32. Qb2 Nf4) 32. c4 Bf4 $36 {[%mdl 2048] Black is on the roll.} 33. Nd3 $2 (33. c5 $17 {was called for.} Qd2 34. Qd1) 33... Rxh4 34. h3 Nh5 35. Nxf4 exf4 ({Weaker is} 35... Nxf4 36. Qd1 $17) 36. Rd1 Qe5 {...f3 is the strong threat.} 37. Qd3 f3 38. Bf1 Ng3+ {Black mates.} 39. Kg1 Nxe4 40. Qd7+ Kh6 41. Bd3 Qg3+ 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.3"]
[White "Pantsulaia, Levan"]
[Black "Sahib Singh"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2598"]
[BlackElo "1699"]
[Annotator "RC"]
[PlyCount "81"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 1:30:30]} e6 {[%emt 1:30:30]} 2. g3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 3. Bg2 {[%emt 0:00:30]} d5 {[%emt 0:00:30]} 4. Nf3 {[%emt 0:00:30]} dxc4 {[%emt 0:00:30]} 5. O-O {[%emt 0:00:30]} Nc6 {[%emt 0:00:30]} 6. Qa4 {[%emt 0:00:30]} Bd7 {[%emt 0:00:30]} 7. Qxc4 {[%emt 0:00:30]} Bd6 {[%emt 0:00:30]} 8. d4 {[%emt 0:00:30]} Rb8 {[%emt 0:00:30]} 9. Nc3 O-O {[%emt 0:00:30]} 10. Rd1 b5 {[%emt 0:00:30]} 11. Qd3 b4 {[%emt 0:00:30]} 12. Ne4 Nxe4 13. Qxe4 Ne7 {[%emt 0:01:00]} 14. Qc2 a5 {[%emt 0:00:30]} 15. e4 {[%emt 0:03:30]} c6 {[%emt 0:00:30]} 16. e5 Bc7 {[%emt 0:00:30]} 17. Ng5 Ng6 18. Be4 h6 19. Nxf7 Rxf7 20. Bxg6 Rf8 21. Be3 Be8 22. Rac1 Rc8 23. Bxe8 Rxe8 24. Qxc6 Bb6 {[%emt 0:04:00]} 25. Qb5 Rxc1 26. Rxc1 Re7 27. Rc6 Bc7 28. Qc4 Qd7 29. Ra6 Kh7 30. Qc2+ g6 31. h4 h5 32. Bg5 Re8 33. Ra7 Rc8 34. Bf6 a4 35. b3 axb3 36. axb3 Qf7 37. Kh2 Kh6 38. Qc6 Kh7 39. Kg1 Kh6 40. Kg2 Kh7 41. Bd8 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.4"]
[White "Midilesh MS"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "D24"]
[WhiteElo "1697"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,18,44,33,41,34,40,31,35,35,42,44,46,0,20,-15,-12,-27,-23,-26,-12,-121,-116,-112,-97,-138,-121,-331,-331,-331,-331,-323,-323,-404,-414,-405,-408,-506,-508,-572,-577,-919,-916,-912,-891,-1053,-912,-1030,-948]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 b5 $146 (5... Bb4 6. Bg5 c5 7. Bxc4 cxd4 8. Nxd4 Bxc3+ 9. bxc3 Qa5 10. Bd2 O-O 11. Qe2 e5 12. Nb3 Qc7 13. O-O Bg4 14. f3 Rc8 15. Bd5 Nxd5 16. exd5 Bh5 17. c4 {1-0 (38) Carlsen,M (2845)-Aronian,L (2763) Karlsruhe/Baden Baden 2019}) 6. e5 {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3} Nd5 7. Nxb5 Nb6 8. Be2 {White is slightly better.} Nc6 {[%cal Bb8c6,Bc6a5,Ba5b3][%mdl 32]} 9. O-O Be7 10. Be3 O-O 11. a4 Ba6 12. Na3 Na5 13. Qc2 Qd7 14. Nd2 {[%cal Ra3c4]} Nb3 15. Rae1 (15. Nxb3 $11 {remains equal.} cxb3 16. Qd2 Bxe2 17. Qxe2) 15... Bxa3 $17 ({Don't take} 15... Nxd4 16. Bxd4 Qxd4 17. Naxc4 $15) 16. bxa3 Qxa4 {[#] aiming for ...Nxd4!} ({But not} 16... Nxd4 17. Bxd4 Qxd4 18. a5 $15) 17. Qe4 Nd5 18. Nb1 $2 (18. Qc2 $17 {keeps fighting.}) 18... c3 $19 19. Bd3 Bxd3 20. Qxd3 Qa5 21. Bg5 c5 22. dxc5 Qxc5 23. Re4 Rfc8 {Black is clearly winning.} 24. Rh4 h6 {[%mdl 64] [#] Overworked Piece} 25. Rxh6 gxh6 26. Bxh6 Ne7 27. Qe4 Ng6 28. Qf3 Qxe5 {Accuracy: White = 29%, Black = 84%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.5"]
[White "Goganov, Aleksey"]
[Black "Abhinav, Chakrapani Santhalay"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2583"]
[BlackElo "1688"]
[Annotator "RC"]
[PlyCount "77"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:28]} 3. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:01:27]} 4. g3 {[%emt 0:00:00]} dxc4 {[%emt 0:09:28]} 5. Bg2 {[%emt 0:00:00]} a6 {[%emt 0:04:13]} 6. O-O {[%emt 0:01:39]} Nc6 {[%emt 0:06:44]} 7. e3 {[%emt 0:00:28]} Bd7 {[%emt 0:02:54]} 8. Qe2 {[%emt 0:00:33]} b5 {[%emt 0:05:41]} 9. b3 {[%emt 0:00:25]} cxb3 {[%emt 0:04:01]} 10. axb3 {[%emt 0:00:07]} Bd6 {[%emt 0:07:38]} 11. Bb2 {[%emt 0:02:06]} O-O {[%emt 0:03:19]} 12. e4 {[%emt 0:02:35]} Be7 {[%emt 0:07:36]} 13. Nc3 {[%emt 0:02:33]} Nb4 {[%emt 0:08:07]} 14. Rfd1 {[%emt 0:05:20]} c6 {[%emt 0:11:49]} 15. Ne5 {[%emt 0:04:33]} Qc7 {[%emt 0:06:56]} 16. Rac1 {[%emt 0:00:32]} Rfd8 {[%emt 0:02:55]} 17. h4 {[%emt 1:17:39]} Be8 {[%emt 0:01:53]} 18. Ng4 {[%emt 0:00:00]} Qb6 {[%emt 0:07:28]} 19. Nxf6+ {[%emt 0:00:00]} Bxf6 {[%emt 0:00:16]} 20. e5 {[%emt 0:00:00]} Be7 {[%emt 0:00:20]} 21. Ne4 {[%emt 0:00:00]} a5 {[%emt 0:02:11]} 22. Qg4 {[%emt 0:00:00]} Nd5 {[%emt 0:01:32]} 23. Nc5 {[%emt 0:00:00]} Bxc5 {[%emt 0:02:51]} 24. dxc5 {[%emt 0:00:00]} Qb7 {[%emt 0:00:33]} 25. h5 {[%emt 0:00:00]} h6 {[%emt 0:00:48]} 26. Ra1 {[%emt 0:00:00]} a4 {[%emt 0:00:31]} 27. b4 {[%emt 0:00:00]} Ne7 {[%emt 0:00:57]} 28. Rd6 {[%emt 0:00:00]} Nf5 {[%emt 0:00:29]} 29. Ra3 {[%emt 0:00:00]} Qc7 {[%emt 0:00:51]} 30. Be4 {[%emt 0:00:00]} Ne7 {[%emt 0:00:29]} 31. Bc1 {[%emt 0:00:00]} Kh8 {[%emt 0:00:25]} 32. Bb1 {[%emt 0:00:00]} Bd7 {[%emt 0:00:36]} 33. Qe4 {[%emt 0:00:00]} g6 {[%emt 0:00:31]} 34. Bxh6 {[%emt 0:00:00]} Nf5 {[%emt 0:00:17]} 35. Bg5 {[%emt 0:00:00]} Re8 {[%emt 0:00:35]} 36. Bf6+ {[%emt 0:00:00]} Kh7 {[%emt 0:00:26]} 37. g4 {[%emt 0:00:00]} Ne7 {[%emt 0:00:13]} 38. hxg6+ {[%emt 0:00:00]} fxg6 {[%emt 0:00:17]} 39. Qh1+ {[%emt 0:00:00]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.6"]
[White "Rushyendra Chowdary Kantipudi"]
[Black "Mchedlishvili, Mikheil"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "1687"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,72,0,-28,0,-15,-14,-12,-13,-26,-6,-14,-25,-19,-17,-31,-36,-50,-61,-143,-118,-230,-109,-115,-136,-117,-76,-249,-240,-290,-289,-325,-324,-327,-311,-349,-344,-352,-343,-337,-323,-327,-314,-396,-396,-377,-377,-394,-361,-323,-362,-487,-489,-1239,-1237,-1183,-1108,-1057,-1047]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Nf6 6. Bd3 d5 7. exd5 Nxd5 8. Nxc6 bxc6 9. Bd2 Bd6 {B44: Sicilian: Taimanov: 5 Nb5} 10. Nc3 Rb8 $146 ({Predecessor:} 10... O-O 11. Ne4 Bc7 12. O-O f5 13. Ng5 e5 14. c4 Nb6 15. Be2 h6 16. Nf3 e4 17. Ne1 {0-1 (56) Ponomarenko,A (2240)-Alekseev,E (2636) Sochi 2016}) 11. Rb1 O-O {The position is equal.} 12. O-O e5 13. Qf3 f5 14. Bc4 Be6 $36 {[%mdl 2048] Black is pushing.} 15. Qe2 Kh8 16. Rfd1 e4 17. f3 ({White should play} 17. Re1 $15) 17... Qc7 18. g3 {[#]} (18. Kh1 $17) 18... Nxc3 (18... exf3 $1 $19 19. Qxe6 Bxg3 20. Bxd5 (20. Nxd5 $2 cxd5 21. Bc3 Bxh2+ 22. Kh1 Qg3 $19) 20... cxd5) 19. Bxc3 $17 Bxc4 20. Qxc4 exf3 {Threatens to win with ...Bxg3!} 21. Qd3 $2 {[#]} (21. Rd2 $17 {might work better.}) 21... Bxg3 $1 $19 {[%mdl 512]} 22. Qxf3 (22. hxg3 Qxg3+) 22... Bxh2+ 23. Kh1 Be5 24. Bxe5 Qxe5 25. c3 Rf6 {White must now prevent ...Rh6+.} 26. Rd2 Rh6+ 27. Kg1 Rg6+ 28. Rg2 Qc5+ 29. Qf2 Rxg2+ 30. Kxg2 {[%mdl 4096] Endgame KQR-KQR} Qd5+ 31. Kg1 Qxa2 32. Qxf5 h6 {Hoping for ...Rb5!} 33. Qg6 Rf8 {Black is clearly winning.} 34. Qd3 (34. Re1 $142 Qxb2 35. Re8 Qf2+ 36. Kh1) 34... Qf7 {( -> ...Qf2+)} 35. Qg3 Qf5 36. Re1 Rf6 {Accuracy: White = 32%, Black = 71%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.7"]
[White "Rozum, Ivan"]
[Black "Tiwari Vivek"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2573"]
[BlackElo "1685"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,58,25,38,34,38,33,42,35,40,33,31,0,39,28,49,32,37,28,50,-55,52,30,139,131,174,173,167,171,172,149,168,163,257,138,224,225,618,602,643,645,837,836,1458,1452,1364,1233,1271,1239,1981,2001,2054]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Nc3 Bf5 6. c5 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} (6. Bd2 e6 7. Nh4 Be4 8. f3 Bg6 9. Nxg6 hxg6 10. Qb3 b5 11. cxd5 cxd5 12. Rc1 Bd6 13. a4 b4 {½-½ (47) Ding,L (2811)-Shankland,S (2705) chess.com INT 2019}) 6... Nbd7 7. Nh4 Bg6 8. Nxg6 {White is slightly better.} hxg6 9. b4 $146 ({Predecessor:} 9. f4 e6 10. Bd3 Qc7 11. Bd2 Be7 12. Qe2 a5 13. Rc1 Nh5 {1-0 (41) Xu,Z (2308)-Manush,S (2353) Backi Petrovac 2018}) 9... e5 10. g3 e4 11. f3 exf3 12. Qxf3 Be7 13. Bd3 O-O 14. Bd2 (14. a4 $14) 14... b5 ({Better is} 14... a5 $15 15. bxa5 Rxa5) 15. a4 Qc7 (15... a5 $11) 16. O-O $16 Nh7 17. axb5 Ng5 18. Qg2 $1 axb5 {[#]} 19. Rxa8 $1 Rxa8 {[#]} 20. Bxb5 $1 {[%mdl 512]} Ra3 {[#]} (20... Nf6 $142) (20... cxb5 21. Nxd5) 21. Bd3 (21. Nxd5 $1 $18 {[%mdl 512]} cxd5 22. Qxd5) 21... Nf6 (21... Qd8 $16 {was necessary.} 22. h4 Ne6) 22. b5 $18 Rxc3 $2 (22... Qc8 23. b6 Ng4) 23. b6 {White is clearly winning.} Qd7 24. Bxc3 Nge4 25. Qb2 {And now b7 would win.} Qh3 26. b7 Nd7 27. b8=Q+ Nxb8 28. Qxb8+ Bf8 29. Bxe4 dxe4 {Accuracy: White = 73%, Black = 16%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.8"]
[White "Hermon Dain Saldanha"]
[Black "Bogdanovich, Stanislav"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1683"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,68,44,44,47,0,0,-18,-20,-22,-18,-81,-81,-80,-92,-156,-157,-162,-172,-215,-198,-164,-131,-195,-209,-210,-124,-280,-284,-435,-437,-422,-424,-430,-419,-735,-722,-662,-575,-573,-558,-551,-514,-1030,-1007,-960,-755,-788,-781,-772,-772,-756,-710,-837,-845,-841,-820,-815,-812]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 b5 6. f3 Nd7 7. O-O-O Nb6 {B06: Modern Defence} (7... Bb7 8. Kb1 Rc8 9. h4 h6 10. Nh3 Nb6 11. Bd3 Nf6 12. Nf4 Nfd7 13. e5 e6 14. d5 Nxd5 15. Ncxd5 Bxd5 16. Nxd5 exd5 17. exd6 {1-0 (77) Ponkratov,P (2613)-Petrosian,T (2671) Moscow 2015}) 8. g4 b4 9. Nd5 Nxd5 {The position is equal.} 10. exd5 Nf6 $146 ({Predecessor:} 10... a5 11. Bc4 Ba6 12. Qd3 Bxc4 13. Qxc4 Nf6 14. Ne2 Nd7 15. g5 {0-1 (45) Lobato Palomo,M (1655)-Largo Barbero,B (1933) Madrid 2017}) 11. Bh6 (11. Bc4 $11 {keeps the balance.}) 11... Bxh6 $17 12. Qxh6 Bb7 13. g5 ({White should try} 13. Nh3) 13... Nxd5 14. Qg7 Rf8 15. Re1 e6 16. Nh3 {[#]} Qd7 {Played: Nd5-f4} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.9"]
[White "David, Alberto"]
[Black "Rebecca Jesumarian"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2562"]
[BlackElo "1674"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,48,0,-2,0,0,31,31,79,87,92,89,85,77,72,81,91,84,889,854,1668,1658,29992,29993,29993,29994,29994,29995,29995,29996,29996,29997,29998,29999,29999]} 1. e4 e6 2. d3 d5 3. Qe2 Nf6 4. Nf3 Be7 5. g3 O-O 6. Bg2 c5 7. O-O Nc6 8. e5 Nd7 9. c4 Qc7 {C00: French: Unusual White 2nd moves} (9... d4 10. Re1 Rb8 11. h4 b5 12. cxb5 Rxb5 13. Na3 Rb8 14. Nc4 Nb6 15. b3 Nxc4 16. bxc4 Rb6 17. Ng5 {1-0 (32) Carlsen,M (2837)-Ding,L (2774) Saint Louis 2017}) 10. Bf4 {And now cxd5 would win.} Nb6 11. Nc3 dxc4 $146 {White is slightly better.} ({Predecessor:} 11... Nd4 12. Nxd4 cxd4 13. Nb5 Qd7 14. Rfd1 Bc5 15. a4 a6 16. Nd6 f6 17. Nxc8 Raxc8 {1-0 (25) Djingarova,E (2253)-Neto,J Metz 2001}) 12. dxc4 Nd4 13. Nxd4 cxd4 14. Ne4 $36 {[%mdl 2048] White is in control.} Qxc4 15. Qg4 {aiming for Bh6!} Kh8 16. Qh5 f6 $2 {[%mdl 8192]} (16... Nd5 $16) 17. exf6 $18 Bxf6 18. Nxf6 gxf6 {[#]} 19. Be4 $1 {[%csl Ge4][%cal Rh5h7][%mdl 512] White mates.} f5 20. Be5+ Kg8 {[#]} 21. Bf3 $1 {[%mdl 512]} Rf6 22. Bxf6 {[%cal Rh5e8]} Kf8 23. Qxh7 Qb4 24. Qg7+ Ke8 25. Bh5# 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.10"]
[White "Krishan A"]
[Black "Fedorov, Alexei"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1672"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,86,38,75,44,47,8,24,25,16,0,3,9,15,0,0,-11,-7,-21,-7,-18,-4,-12,38,-254,-262,-259,-272,-372,-367,-440,-434,-451,-449,-416,-318,-433,-329,-342,-337,-321,-313,-529,-510,-492,-526,-503,-529,-510,-504,-469,-486,-498,-490,-618,-589,-670,-685,-732,-732,-710,-694,-690,-612,-6426,-4449,-3117,-2992,-29982,-29983,-29983,-29984,-29983,-29984]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Be3 Qc7 8. a3 d6 9. Be2 {B33: Sicilian: Pelikan and Sveshnikov Variations} a6 10. O-O b5 11. f4 {White has an edge.} Be7 12. Qe1 O-O 13. Qg3 (13. Nd4 Bb7 14. Qg3 Kh8 15. Nxc6 Bxc6 16. Bd4 Rad8 17. Bf3 Rg8 18. Rad1 {0-1 (40) Plat,V (2522)-Movsesian,S (2680) Minsk 2017}) 13... Bb7 14. f5 Kh8 15. Rad1 Rae8 $146 ({Predecessor:} 15... b4 16. axb4 Nxb4 17. fxe6 Nxc2 18. Bc5 Bxe4 19. Rxf6 Bxf6 20. Nxe4 {1-0 (32) Acosta Cubides,J (1901)-Romero Martinez,F (2120) Mosquera 2014}) 16. Nc5 Ne5 {[%cal Bc6e5,Be5c4,Bc4b2][%mdl 32] Hoping for ...b4.} 17. Bd4 Bc8 18. Nd3 (18. Kh1 {looks sharper.} exf5 19. exf5 Rg8 20. Qf4 Bd8 21. N5e4) 18... Nc4 {...e5 is the strong threat.} 19. Ne1 $2 {[%mdl 8192]} (19. fxe6 $1 $14 {stays ahead.} fxe6 20. e5 dxe5 21. Nxe5) 19... e5 $19 20. Bf2 {and the idea Bxc4 leaves White hopeful.} Nxb2 21. Rd2 Bb7 22. Qf3 Rc8 23. Nd5 Bxd5 24. exd5 Qc3 25. Be3 e4 26. Qf4 Nc4 ({Resist} 26... Qxa3 27. g4 $19) 27. Bxc4 Rxc4 ({Don't do} 27... Qxc4 28. Bd4 $19) 28. h3 $2 (28. g3) 28... Nh5 29. Qf2 {[#]} Bh4 $1 {[%mdl 576] Deflection} 30. Qxh4 Qxe3+ 31. Rdf2 Nf6 {Played: Nh5-g3} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.11"]
[White "Visakh N R"]
[Black "Pathak Rudra S"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "2518"]
[BlackElo "1672"]
[Annotator "TA RC"]
[PlyCount "103"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,109,57,53,72,71,78,68,64,67,76,65,64,50,48,47,58,41,50,38,46,31,33,29,37,0,0,14,0,0,0,-9,0,-7,-7,-10,-6,-178,-177,-276,-282,-279,-259,-271,-264,-256,0,-210,0,0,145,138,451,447,425,402,396,381,357,268,290,302,304,259,315,335,291,258,493,491,485,436,799,619,859,859,806,763,686,652,1712,1587,1872,1593,1829,653,1339,1248,12842,12843,12843,12843,12843,12841,12845,12846,12846,12847,12847,12847]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nc6 6. Nc3 Nf6 7. Be2 e5 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation)} (7... g6 8. Be3 Nxd4 9. Bxd4 Bg7 10. Nd5 Nxd5 11. Bxg7 Qa5+ 12. Qd2 Qxd2+ 13. Kxd2 Rg8 14. Bd4 Nf4 15. Bf1 g5 {½-½ (31) Kasimdzhanov,R (2662)-Galego,L (2471) Batumi 2018}) 8. Nc2 Be6 9. Be3 Be7 {White is slightly better.} 10. O-O O-O 11. f3 Ne8 12. Nd5 Bg5 13. Bb6 $146 ({Predecessor:} 13. Bf2 f5 14. exf5 Bxf5 {1-0 (61) Mohr,G (2473)-Lojek,M (2069) Katowice 2017}) 13... Qd7 14. Bf2 {Black must now prevent Nb6.} Rb8 15. b4 f5 16. a4 fxe4 17. fxe4 Nf6 18. Qd3 Nxe4 19. Qxe4 Bf5 20. Nb6 Qf7 ({But not} 20... Bxe4 $6 21. Nxd7 Bxc2 22. Nxf8 $16 (22. Nxb8 Rxb8 23. c5 d5 $16)) 21. Qd5 {Hoping for b5.} Bxc2 22. Nd7 {And now Bg4 would win.} Qxd5 23. cxd5 Nd4 24. Bg4 $2 (24. Bxd4 $1 $11 {and White has nothing to worry.} exd4 25. Rxf8+ Rxf8 26. Nxf8 Kxf8 27. Kf2) 24... Rf4 $19 25. Nxb8 (25. Be6+ $142 Nxe6 {[%mdl 64] Discovered Attack} 26. Nxb8) 25... Rxg4 26. Bxd4 exd4 ({Weaker is} 26... Rxd4 27. Nd7 $17) 27. Nd7 {[%csl Gd7][%cal Rf1f8]} Be3+ 28. Kh1 {[%csl Gd7][%cal Rf1f8]} h6 $2 (28... h5 $1 $19 {Strongly threatening ...d3.} 29. h3 Rf4 30. Rxf4 Bxf4) 29. Rf8+ $11 Kh7 {[%mdl 1024] Black has strong compensation.} 30. h3 $36 {[%mdl 2048] White has some pressure.} Rg5 {[#]} (30... Rf4 $11 31. Rc8 d3 32. Nf8+ Rxf8 $1 {[%mdl 512]} 33. Rxf8 d2) 31. Rc8 $1 $16 {aiming for Nf8+.} Bf5 $2 {[%mdl 8192]} (31... d3 $16) 32. Nf8+ $18 Kg8 33. Ne6+ {[%mdl 64] Discovered Attack} Kh7 34. Nxg5+ hxg5 35. Re8 Bd2 36. Rf1 Bg6 37. Re7 Bxb4 38. Rxb7 Bc5 39. Rc7 Bb4 $2 (39... Bc2 40. Rxc5 dxc5) 40. Rc4 {White is clearly winning.} Bc3 {If only Black now had time for ...Bd3....} 41. Rd1 Bf5 (41... Kg8 $142 42. a5 Bh5) 42. Rdxd4 Bxd4 43. Rxd4 {[%mdl 4096] Endgame KR-KB} Kg6 44. Rb4 Kf6 45. Rb6 Ke5 46. Rxa6 Be4 47. Ra7 g6 48. a5 (48. Rc7 $142 Kxd5 49. a5) 48... Kxd5 49. Rc7 Ke6 50. a6 d5 51. Rc6+ Kd7 {[#]} 52. Rb6 {Played: a6-a7} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.12"]
[White "Vishnu Menon R"]
[Black "Yudin, Sergei"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1898"]
[BlackElo "2508"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,108,29,31,25,41,37,35,46,56,41,62,0,0,-12,17,17,12,-25,-23,-18,-21,-30,5,-25,-17,-25,-14,-18,-16,-62,-11,-38,-31,-112,-78,-85,-56,-84,-84,-84,-84,-84,-84,-85,-92,-92,-92,-129,-121,-129,-119,-127,-122,-120,-116,-155,-169,-173,-154,-147,-154,-143,-111,-114,-109,-250,-254,-251,-245,-407,-408,-881,-815,-498,-802,-1007,-758,-2419,-2476,-2585,-2289,-29970,-29973,-29971,-29972,-29974,-29975,-29974,-29974,-29977,-29978,-29978,-29979]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. O-O-O+ Nbd7 8. f4 exf4 9. Nf3 h6 10. Bxf4 {B07: Pirc Defence: Miscellaneous Systems} Bc5 11. h3 Nh5 12. Bh2 {White is slightly better.} Be3+ 13. Kb1 {And now Ne5 would win.} Bf4 $1 14. Bxf4 (14. g4 $14 Bxh2 15. Rxh2) 14... Nxf4 $11 15. Ne5 (15. Nd5 {keeps more tension.} Ng6 16. g3 c6 17. Nf4 Ke7 18. Nd5+) 15... Kc8 (15... Ke7 {is more complex.} 16. Nxd7 Bxd7 17. g3 Ng6 18. Nd5+ Kd8) 16. Nxd7 Bxd7 17. Rd2 $146 ({Predecessor:} 17. Bc4 f6 {0-1 (39) Mustaps,M (2199)-Nguyen,N (2534) Batumi 2006}) 17... Ng6 18. Bc4 Ne5 19. Rhd1 f6 20. Bb3 c6 21. Ne2 Kc7 22. Nf4 Rhe8 23. Nd3 Rad8 ({Black should play} 23... Nxd3 $15 24. cxd3 Rad8) 24. Nxe5 Rxe5 25. Rd4 (25. Bf7 $15) 25... Re7 26. c3 Rf8 27. Bc2 c5 28. R4d2 Bc6 29. Re1 Rfe8 30. Rde2 Re5 31. g4 h5 32. Re3 hxg4 33. hxg4 Rh8 34. Bd1 Rh2 35. Bf3 Kd6 36. R1e2 Rxe2 37. Rxe2 $17 {[%mdl 4096] Endgame KRB-KRB} Rg5 38. Kc2 Ke5 39. Kd3 Bd7 40. Rf2 b6 41. Ke3 (41. Rg2 $17 {was called for.}) 41... Bxg4 $19 42. Rd2 {[#] aiming for Rd5+.} Be6 43. b3 $2 (43. a4 {keeps fighting.}) 43... c4 {Played: Rg5-g3} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.13"]
[White "Stupak, Kirill"]
[Black "Arul Anandh S P K"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2506"]
[BlackElo "1668"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,55,35,42,22,26,24,81,64,70,73,74,37,104,68,76,13,12,16,23,13,85,93,98,83,88,91,86,58,204,189,233,229,223,235,327,338,423,416,1479,1533,1886,1877,29991,29992,29992,29993]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 Ne4 6. Bxe7 Qxe7 7. Rc1 {D53: Queen's Gambit Declined: 4 Bg5 Be7: Early deviations} O-O 8. e3 b6 (8... Nf6 $11) (8... Nxc3 9. Rxc3 c6 10. Qc2 Nd7 11. Bd3 h6 12. cxd5 exd5 13. O-O Nf6 14. Nd2 Ne8 15. Rb1 Nd6 16. b4 Be6 17. a4 a6 18. Nb3 g6 19. Nc5 {½-½ (40) Volkov,S (2568)-Timofeev,A (2580) Khanty-Mansiysk 2018}) 9. cxd5 $16 {White is better.} Nxc3 10. Rxc3 exd5 11. Bd3 h6 $146 (11... g6 $14) ({Predecessor:} 11... c5 12. dxc5 bxc5 13. O-O Nd7 14. Qc2 g6 15. Bb5 Rb8 16. Bxd7 Bxd7 17. Rxc5 Rxb2 18. Qxb2 Qxc5 {1-0 (31) Petran,P (2384)-Frigieri,F (2148) Budapest 2011}) 12. Qc2 Na6 13. Bxa6 ({White should play} 13. Qa4 $16 Qb4 14. Qxb4 Nxb4 15. Kd2) 13... Bxa6 $11 14. Qa4 Qe4 {Hoping for ...Qb1+.} 15. Kd2 $36 {[%mdl 2048] White has the initiative.} Bc4 (15... Bc8 $11) 16. b3 $16 b5 {[#]} 17. Qa5 $1 b4 18. Qxb4 Rab8 19. Qc5 a5 {[#]} ({Better is} 19... Rb7 $14) 20. Rhc1 $1 $18 ({But not} 20. Qxc7 $6 a4 $16) 20... Bb5 21. a4 (21. Qxc7 $6 a4) 21... Bd7 22. Qxc7 Bh3 23. Qg3 ({Weaker is} 23. gxh3 Qxf3 24. Qg3 Qf6 $16) ({Resist} 23. Qxa5 Bxg2 24. Ne5 Qh4 $18) 23... Bf5 24. Ne5 {Black must now prevent f3.} f6 (24... Be6 $142 25. Nc6 Ra8) 25. f3 Qb1 26. Rxb1 Bxb1 27. Rc7 {[%csl Gc7][%cal Rg3g7]} g5 28. Qh3 {Accuracy: White = 65%, Black = 21%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.14"]
[White "Anupam M Sreekumar"]
[Black "Venkatesh, M.R."]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1665"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,140,23,22,5,4,-5,6,-4,12,10,35,8,19,10,10,0,34,31,36,0,0,-1,28,31,20,22,19,14,22,15,54,-20,-20,-15,0,-42,0,-15,-7,-25,0,0,0,0,0,-67,-61,-111,-68,-115,-116,-225,-109,-109,-110,-323,-281,-1043,-112,-112,-117,-110,-110,-108,-110,-117,-116,-120,-116,-117,-102,-125,-125,-127,-60,-58,-44,-52,-46,-46,-47,-47,-38,-59,-59,-119,-119,-119,-119,-119,-119,-119,-119,-156,-156,-156,-157,-157,-156,-156,-110,-110,-110,-110,-110,-110,-110,-110,-75,-75,-75,-75,-75,-75,-75,-75,-8,-8,0,-75,0,-8,0,-75,0,-75,-75,-75,0,-75,0,-75,0]} 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. d3 Be7 6. b3 {A05: Réti Opening: 1 Nf3 Nf6} (6. e4 d6 7. Nfd2 e5 8. a4 a6 9. Nc3 c6 10. f4 Nbd7 11. Nf3 O-O 12. h3 Qc7 13. g4 Ne8 14. Ne2 exf4 15. Bxf4 {0-1 (45) Grischuk,A (2771)-Maghsoodloo,P (2688) St Petersburg 2018}) 6... O-O 7. Bb2 d5 8. Nbd2 {The position is equal.} Nbd7 9. c4 b4 10. Ne5 $146 ({Predecessor:} 10. cxd5 exd5 11. Rc1 c5 12. Nh4 Re8 13. Nf5 Bf8 14. d4 {0-1 (46) Mohamed,T (1987)-Ibrahim,H (2319) Cairo 2015}) 10... a5 11. Qc2 Nxe5 12. Bxe5 Nd7 13. Bb2 c6 14. Rad1 a4 15. e4 Qa5 16. d4 Rfd8 17. f4 Qa7 18. Kh1 a3 19. Ba1 c5 20. dxc5 (20. exd5 $14 exd5 21. Rfe1) 20... dxc4 $11 21. Nxc4 Nxc5 22. Bd4 Rac8 23. f5 exf5 24. Rxf5 Qa6 (24... h6 {looks sharper.} 25. Qd2 Bxe4 26. Bxe4 Nxe4 27. Bxa7 Nxd2 28. Rxd2 Rxd2 29. Nxd2 Rc2) 25. Bxc5 Rxd1+ 26. Qxd1 Rxc5 27. Rxc5 (27. Qd7 $1 $11 Qe6 28. Qxb7 Rxf5 29. Qa8+ (29. Bh3 Bf8 $11) 29... Bf8 30. Bh3 {[%mdl 64] Pin}) 27... Bxc5 $15 28. Qd8+ Bf8 29. Qc7 Qf6 30. h3 {[#]} (30. h4 $17 Qa1+ 31. Kh2 Qxa2 32. Qxb7 Qxb3 33. Ne5) 30... Qa1+ (30... Bxe4 $1 $19 {[%mdl 512] has better winning chances.} 31. Bxe4 Qa1+ {[%mdl 64] Double Attack} 32. Kh2 Qxa2+ {[%mdl 64] Double Attack} 33. Bg2 Qxb3) 31. Kh2 $17 Qxa2 {And now ...Bxe4 would win.} 32. Ne5 $2 (32. Qxb7 $17 Qxb3 33. Na5) 32... Qxb3 $19 {aiming for ...a2.} 33. Nd7 $2 (33. Qxb7 h6 34. Qa8) 33... Qa4 $2 (33... a2 $19 {and Black stays clearly on top.} 34. Qxb7 a1=Q) 34. Qxb7 $17 a2 35. Qc8 {[%csl Gd7][%cal Rc8f8] [#]} Qxd7 $1 {[%mdl 512]} 36. Qxd7 a1=Q {Hoping for ...b3.} 37. Qd5 Qc3 {White must now prevent ...b3.} 38. e5 Qe3 39. Qe4 Qb6 40. Qf5 g6 41. Qf4 Qb5 (41... Qc7 $17 42. e6 Qxf4 43. gxf4 fxe6) 42. Bf1 $1 $15 {[%cal Rf1b5]} Qa4 43. Bc4 Qc2+ 44. Kh1 Qd1+ 45. Kg2 Qd7 46. Qe4 Qd2+ 47. Kh1 ({White should play} 47. Kf1 $15) 47... Bc5 $17 {[#]} 48. Qf4 $1 {[%mdl 512]} Qxf4 $1 49. gxf4 {[%mdl 4096] Endgame KB-KB} Be3 50. e6 {[#]} fxe6 $1 51. Bxe6+ Kg7 52. f5 Kf6 53. Bg8 gxf5 54. Bxh7 b3 {[%cal Bb4b3,Bb3b2][%mdl 32] ( -> ...b2)} 55. Bg8 b2 56. Ba2 Ke5 57. Kg2 Bg5 58. Kf3 Kd4 59. Bb1 {[#]} f4 $1 60. Ke2 Kc3 61. Be4 Kb3 {Threatens to win with ...Ka2.} 62. Bb1 Bh4 (62... Bh6 $17) 63. Kf3 $11 Bg5 (63... Bg3 $11) 64. Ke2 $1 $17 Bh4 (64... Bh6 $17) 65. Kf3 $11 Bg5 (65... Bg3 $11) 66. Ke2 $1 $17 Kc3 67. Be4 $1 Bh6 68. Bf5 Bg5 69. Be4 $1 Bh6 70. Bf5 $1 Bg5 {Accuracy: White = 58%, Black = 41%.} ({Black should try} 70... Kd4 $17) 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.15"]
[White "Rios, Cristhian Camilo"]
[Black "Adireddy Tarun"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2498"]
[BlackElo "1657"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,68,6,14,0,0,0,44,48,53,-29,4,0,6,2,13,-13,-13,-20,-24,-9,0,0,0,0,0,-31,25,-12,94,89,97,94,97,67,66,79,108,43,454,468,472,472,29978,224,2546,2221,29989,29990,29996,29972,29986,29987,29987,29988,29988,29989,29999]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} cxd4 9. Nxd4 dxc4 (9... Nd7 10. Bf4 Qh4 11. g3 Qh5 12. O-O g5 13. cxd5 Bxc3 14. bxc3 exd5 15. Be3 Nxe5 {1-0 (29) Mamedyarov,S (2772)-Gelfand,B (2684) Moscow 2019}) 10. Bxe4 {Black must now prevent Be3.White is slightly better.} Qxd4 11. Bxh7+ $146 ({Predecessor:} 11. O-O Qxe5 12. Bxh7+ Kh8 13. Be4 {0-1 (30) Billion,P (784)-Van Beele,J (976) LSS email 2013}) 11... Kh8 12. Be4 {White wants to play Bf4.} Nd7 $132 {[%mdl 2048] Black is not keeping still} 13. O-O Qxe5 14. Ne2 Nf6 15. Bf3 $1 Qc7 16. Bg5 Be7 17. Rac1 Ng4 {[%csl Gg4][%cal Rc7h2]} 18. Bf4 Ne5 19. Kh1 Bd6 (19... Qa5 $15) 20. Nc3 {Strongly threatening Nb5.} Bd7 (20... Nxf3 $11 21. Nb5 {[%mdl 64] Double Attack} Qc6 22. Bxd6 Rd8 23. Qxc4 Bd7) 21. Ne4 $16 {[%mdl 1024] White has strong compensation.} Be7 22. Qc3 f6 23. Bh5 {aiming for Qh3.} Qc6 24. Qh3 $1 {[%cal Rh5f7]} Kg8 {[#]} 25. Nd2 (25. Ng5 $1 $16 {[%mdl 512] Bf7+! would kill now.} fxg5 26. Bxe5) 25... Nf7 $2 {[%mdl 8192]} ({Black should try} 25... Be8 $1 $14) 26. Bg6 $18 {[%csl Gg6][%cal Rh3h7]} Rfd8 27. Nxc4 {And now Ne5! would win.} (27. Rxc4 Qd5 $16) 27... Qa6 {[#]} (27... Kf8 $18 28. Ne5 {[%mdl 64] Discovered Attack} fxe5) 28. Qh7+ (28. Qh5 Be8 $16) (28. Ne5 $142 $1 {[%mdl 512]} fxe5 29. Qh7+ Kf8 {[#]} 30. Bxe5 $1 {[%mdl 512]} Qxf1+ 31. Rxf1 Ba4 32. Qxg7+ {[%mdl 64] Double Attack} Ke8 33. Qxf7+ Kd7 34. b3) 28... Kf8 {[#]} 29. Ne5 $1 {[%mdl 512]} Be8 (29... fxe5 30. Bxe5) 30. Nxf7 {White mates.} Bxf7 31. Bh6 Bxg6 32. Qxg7+ Ke8 33. Qxg6+ Kd7 34. Rfd1+ Bd6 35. Qf7# {Accuracy: White = 43%, Black = 40%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.16"]
[White "Deepak Raj R"]
[Black "Vasquez Schroeder, Rodrigo"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1657"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,79,0,0,-9,6,0,0,-12,6,-20,-18,-16,-4,-22,-12,-20,-8,-31,-35,-38,-36,-48,-28,-75,-24,-77,-60,-63,-100,-481,-464,-1011,-735,-29984,-29985,-29985,-29986,-29986,-29987,-29987,-29988,-29988,-29989,-29987,-29988,-29993,-29991,-29991,-29992,-29992,-29992,-29993,-29992,-29992,-29993,-29994,-29992,-29992,-29993,-29993,-29994,-29994,-29995,-29997,-29998,-29999]} 1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 Bd6 5. Bg3 c5 6. c3 Qc7 7. Nbd2 Nbd7 8. Bd3 O-O 9. O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (9. Bxd6 Qxd6 10. O-O e5 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. Re1 Rd8 14. h3 Bf5 15. Qc2 Bxd3 16. Qxd3 Rd7 17. Rad1 Rad8 18. Qc2 h6 19. Nf1 Ne4 20. Nd2 Nf6 21. Nf1 Ne4 22. Nd2 {½-½ (22) Berkes,F (2647)-Howell,D (2701) Budva 2019}) 9... e5 {Strongly threatening ...e4.} 10. dxe5 Nxe5 11. Nxe5 {The position is equal.} Bxe5 12. e4 {aiming for f4.} Bxg3 13. hxg3 Bg4 14. Qb1 c4 15. Bc2 {[#]} Rad8 $146 ({Predecessor:} 15... dxe4 16. Nxe4 Nxe4 17. Bxe4 {0-1 (38) Flom,G (2501)-Cornette,M (2600) Brest 2018}) 16. exd5 Rxd5 17. Ne4 Nd7 18. b3 Rh5 {...f5 is the strong threat.} 19. Bd1 {[#]} Ne5 (19... f5 $1 $17 {Threatens to win with ...Ne5.} 20. Bxg4 fxg4) 20. f4 (20. Bxg4 $11 Nxg4 21. Qd1) 20... Qb6+ $17 21. Nf2 Bf5 $36 {[%mdl 2048] Black is on the roll.} 22. Bc2 $2 {[%mdl 8192] [#]} (22. Qb2 $17 {is a better chance.} Nd3 23. Qd2) 22... Qg6 $1 $19 {[%csl LRc2,LRg3][%mdl 512]} 23. Ne4 (23. g4 $142 Bxc2 24. fxe5 Bxb1 25. gxh5 Qxh5 26. Raxb1) 23... Ng4 {( -> ...Rh1+!)} 24. Rf3 Bxe4 {Black mates.} 25. Bxe4 Qb6+ 26. Kf1 Rh1+ {[%mdl 64] Skewer} 27. Ke2 Rxb1 28. Bxb1 Re8+ 29. Kd2 Qd6+ 30. Kc1 Re2 {[%csl Ge2][%cal Rd6d2]} 31. Bc2 Qd2+ {[%mdl 64] Double Attack} 32. Kb2 Qxc2+ 33. Ka3 Qb2+ {[%mdl 64] Double Attack} 34. Kb4 Qxa1 35. f5 Re4 36. Rf4 Rxf4 37. gxf4 {[#]} Ne3 $1 38. f6 Qxa2 39. fxg7 Qxb3+ 40. Kc5 Qb6# {Accuracy: White = 17%, Black = 60%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.17"]
[White "Karthik Venkataraman"]
[Black "Shree Ganesh Muthu Annamalai"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2479"]
[BlackElo "1654"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,30,33,28,36,30,33,32,25,29,66,33,43,53,70,44,58,77,79,22,92,81,70,60,101,94,119,104,106,94,116,96,113,45,43,-21,-7,-28,-10,-21,-8,-66,-55,-109,-89,-104,-108,-111,-81,-85,-87,-108,-114,-97,-92,-85,-110,-93,0,0,331,331,327,321,352,343]} 1. e4 Nc6 2. Nf3 d6 3. d4 g6 4. h3 Bg7 5. Nc3 Nf6 6. d5 {B00: Queen's Fianchetto Defence, Nimzowitsch Defence} Nb8 7. Bc4 O-O 8. O-O {White is slightly better.} a6 9. a4 b6 (9... e5 10. dxe6 Bxe6 11. Bxe6 fxe6 12. e5 dxe5 13. Nxe5 Qxd1 14. Nxd1 {½-½ (31) Aronian,L (2765)-Zubov,A (2597) St Petersburg 2018}) 10. Re1 c6 $146 ({Predecessor:} 10... Bb7 11. Bf4 c6 12. Qe2 Nbd7 13. dxc6 Bxc6 {1-0 (69) Rukavina,J (2423)-Poropat,M (2055) Arco 2010}) 11. Bg5 $36 {[%mdl 2048] White is pushing.} cxd5 12. exd5 Bb7 13. Qd2 Nbd7 {[%cal Bb8d7,Bd7c5,Bc5a6,Ba6b4][%mdl 32]} 14. Bh6 (14. b3 $16) 14... Rc8 (14... b5 $1 $11 15. Bxg7 (15. axb5 Nb6 $16) 15... Kxg7 16. axb5 Nb6) 15. Bxg7 $16 Kxg7 16. Ba2 a5 17. Re3 Nc5 18. Rae1 Re8 19. Nd4 Qd7 20. Bc4 Ba6 21. Bxa6 (21. Bb5 $1 $16 {[%cal Rb5d7]} Bxb5 22. axb5) 21... Nxa6 $14 22. Rf3 (22. Rg3 $14) 22... Nb4 $1 $11 23. Nb3 Qb7 {[%cal Rb4d5]} 24. Rd1 Rc4 25. Qe2 (25. Nd4 $11) 25... Rec8 $15 26. Nd2 (26. Qd2 $15) 26... Rh4 27. Re1 Rc7 $1 ({Reject} 27... Nxc2 $6 28. Qxe7 Qxe7 29. Rxe7 $11) 28. Nde4 {Strongly threatening Rxf6!} Nxe4 ({Much weaker is} 28... Nfxd5 $6 29. Nb5 $11) 29. Nxe4 {Ng5 is the strong threat.} Qxd5 ({Wrong is} 29... Rxc2 $2 {[#]} 30. Rxf7+ $1 {[%mdl 512]} Kxf7 31. Nxd6+ $1 {[%mdl 512]} exd6 32. Qe8+ Kf6 33. Qd8+ Kf7 34. Qxh4 $18) 30. c3 Nc6 31. Re3 Ne5 32. Rd1 {[%cal Be1d1,Bd1d4,Bd4f4][%mdl 32]} Qc4 33. Qe1 Rf4 ({Better is} 33... Qa2 $17 34. Nxd6 {[%mdl 64] Remove Defender} exd6 35. Rxe5 Qxb2) 34. Rd4 $11 Qe6 $2 {[%mdl 8192]} (34... Qc6 $11) 35. Nxd6 $1 $18 {[%mdl 64] Discovered Attack} exd6 36. Rxf4 g5 37. Rd4 {Accuracy: White = 50%, Black = 61%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.18"]
[White "Ajeet Singh, Roshan"]
[Black "Vishnu Prasanna. V"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2038"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,62,7,20,12,16,0,-33,-31,-61,-60,-62,-43,-75,-82,-85,-67,-67,-56,-90,-58,-53,-54,-79,-28,-36,-37,-52,-50,-87,-77,-392,-387,-388,-378,-550,-542,-696,-688,-737,-729,-676,-700,-1347,-1256,-29998,-1841,-29989,-29989,-29986,-1402]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d6 5. e3 Nbd7 6. Bd3 O-O 7. O-O e5 8. Qc2 Re8 {E61: King's Indian: Early deviations for White, including Smyslov System} 9. dxe5 (9. b3 b6 10. Bb2 Bb7 11. d5 Nh5 12. e4 Nf4 13. Ne2 Nxd3 14. Qxd3 a5 15. Qc2 Nc5 16. a3 a4 17. b4 {0-1 (53) Magalashvili,D (2449)-Gelashvili,T (2622) Tbilisi 2008}) 9... dxe5 10. Nd2 Nc5 $146 {Black is slightly better.} ({Predecessor:} 10... c6 11. b3 Qe7 12. Bb2 Nf8 13. Rad1 Nh5 14. Nde4 f5 15. Ng3 Nf6 16. Be2 {1-0 (38) Radloff,R (1563)-Focke,W (1521) Berlin 2003}) 11. Be4 Nfxe4 12. Ndxe4 Nxe4 13. Qxe4 c6 14. Rd1 Qe7 {...Bf5 is the strong threat.} 15. Qc2 $1 e4 16. Ne2 Bg4 {Played: Qe7-g5} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.19"]
[White "Vignesh N R"]
[Black "Nidheshpa S"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2472"]
[BlackElo "1651"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,-1,14,0,49,0,0,0,0,0,3,0,0,-53,-60,-57,-56,-84,-40,-37,-34,-56,-25,-24,-20,-15,-16,-27,-23,-20,-9,-19,0,0,0,0,13,11,24,20,53,0,93,87,88,93,92,45,93,114,113,110,110,109,103,100,100,109,468,463,29987,5489,29993,29994,29995,29996]} 1. Nf3 d5 2. b3 Bg4 3. e3 e5 4. h3 Bxf3 5. Qxf3 e4 6. Qg3 {A06: Réti Opening:1 Nf3 d5} Qd6 $146 ({Predecessor:} 6... Nd7 7. Nc3 c6 8. Bb2 Nc5 9. Ne2 Nf6 10. Nf4 Rg8 11. h4 {½-½ (38) Artemiev,V (2746)-Kasimdzhanov,R (2657) Douglas 2019}) 7. Qg4 {[#] Threatens to win with Qc8+.} Nd7 8. Bb2 {The position is equal.} Ngf6 9. Qd1 c6 10. Be2 Qe6 11. Bg4 ({White should try} 11. O-O $11) 11... Nxg4 $15 12. Qxg4 f5 13. Qe2 Nf6 14. d3 Bd6 15. Nd2 Be5 16. Bxe5 Qxe5 17. O-O Qc3 18. Rfc1 O-O 19. a4 a5 20. Rab1 Rfe8 21. d4 Qb4 22. c3 Qd6 23. b4 f4 24. b5 h6 25. c4 (25. exf4 $14 Qxf4 26. Qe3) 25... Nh7 (25... fxe3 $11 26. Qxe3 Rab8) 26. bxc6 $16 bxc6 27. cxd5 cxd5 28. Rc5 f3 29. gxf3 Qg6+ 30. Kh2 Qh5 31. Rg1 Ng5 {[%csl Gg5][%cal Rh5h3]} 32. Qf1 {f4 is the strong threat.} Nxf3+ 33. Nxf3 exf3 $4 {[%mdl 8192]} (33... Qxf3 $16 {is tougher.} 34. Rxd5 Qf7) 34. Rc7 $18 g6 (34... g5 $18 35. Qb1 Re4) 35. Qb1 {Played: Qf1-b5} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "1.20"]
[White "Chidvilash Sai Surapaneni"]
[Black "Taher, Yoseph Theolifus"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "1650"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,88,4,9,6,0,0,0,0,25,9,12,15,6,0,14,20,6,0,0,0,15,14,18,7,7,-20,-18,-18,0,0,0,0,0,0,0,0,0,-37,-26,-91,-30,-39,-15,-38,-37,-93,-95,-79,-54,-137,-34,-54,0,-39,-27,-106,-72,-360,-367,-683,-79,-81,-52,-81,-93,-181,-160,-168,-156,-160,-156,-1484,-1477,-29994,-29995,-29995,-29994,-29994,-29995,-29998,-29999]} 1. c4 e5 2. g3 c6 3. Bg2 d5 4. cxd5 cxd5 5. d4 e4 6. Nc3 {A20: English Opening: 1...e5} Nf6 7. Bg5 (7. Nh3 Bb4 8. O-O Bxc3 9. bxc3 O-O 10. f3 exf3 11. Rxf3 h6 12. Qf1 Nbd7 {½-½ (50) Aronian,L (2785)-Anand,V (2779) Doha 2016}) 7... Nbd7 8. f3 {[%cal Rf3e4] The position is equal.} exf3 9. Nxf3 {Nxd5! is the strong threat.} Be7 10. O-O O-O 11. Qd3 $146 ({Predecessor:} 11. Nh4 g6 12. Bh6 Re8 13. Nxd5 Nxd5 14. Bxd5 {1-0 (34) Moeller,H (2259)-Gebigke,M (2137) Berlin 2012}) 11... Nb6 12. Nh4 h6 13. Bxf6 Bxf6 14. Nf5 Re8 15. Rad1 Be6 {White should prevent ...Nc4.} 16. e4 Nc4 17. Rf2 Bxf5 18. exf5 Re3 19. Qc2 Nb6 20. Re2 Rxe2 21. Qxe2 Qd7 22. Qf3 Rd8 {[%cal Ba8d8,Bd8e8,Be8e4][%mdl 32]} 23. Bf1 Qe7 24. Ne2 (24. a3 $11 {remains equal.}) 24... Qb4 (24... Nc4 $17 25. b3 Ne3) 25. Qc3 Qa4 26. Qb3 Qd7 27. Bh3 ({Better is} 27. Qf3 $15) 27... Re8 $17 28. Nf4 Re4 29. Qc3 (29. Bg2 $1 $15) 29... Na4 (29... Qa4 $17 30. b3 Bxd4+ 31. Kh1 Bxc3 32. bxa4 d4) 30. Qb4 $15 Nb6 (30... b6 $15) 31. Bg2 Re8 32. g4 (32. a4 $11 {keeps the balance.}) 32... Qc7 33. Nxd5 $2 {[%mdl 8192] [#]} (33. Rf1 $17 {keeps fighting.}) 33... Nxd5 $19 34. Bxd5 $2 (34. Qc5 Qxc5 35. dxc5) 34... Qf4 $2 (34... Re2 $19 {and Black stays clearly on top.} 35. Kf1 Rc2 36. Bxf7+ Kxf7 37. Qb3+ Kf8 38. Qa3+ Be7) 35. Kh1 $17 Qxg4 36. Rg1 Qxf5 37. Qxb7 (37. Qb5 $17 {is a better defense.} Qc8 38. Bxb7) 37... Bxd4 $19 38. Rd1 Bb6 {[#] Strongly threatening ...Rd8.} 39. Bg2 Qe5 $40 {[%mdl 128] Threatens to win with ...Bc7. Black wants a kill.} 40. Rf1 $2 (40. Qd5 $17) 40... Bc7 {[%csl Gc7][%cal Re5h2]} 41. Kg1 Qxh2+ {Black mates.} 42. Kf2 Qg3+ 43. Kg1 Bb6+ 44. Kh1 Qh4+ 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.1"]
[White "Rathneesh R"]
[Black "Ponkratov, Pavel"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2064"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,54,0,18,7,16,0,0,0,-8,-5,97,101,101,101,102,70,117,0,0,31,58,0,0,0,0,-160,105,-140,-123,-29985,-29986,-29986,-29987,-29987,-29988,-29988,-29989,-29989,-29990,-29990,-2150]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. O-O Be7 8. Rb1 g5 9. d3 {A29: English Opening: Four Knights Variation with 4 g3} g4 (9... Be6 10. b4 g4 11. Ne1 Nd5 12. Bd2 h5 13. b5 Ncb4 14. a3 Nxc3 15. Bxc3 Nd5 16. Bxe5 Bf6 17. Bxf6 Qxf6 18. Bxd5 Bxd5 {0-1 (70) Romanov,E (2626)-Heberla,B (2551) Tegernsee 2017}) 10. Nd2 h5 11. b4 $146 {The position is equal.} ({Predecessor:} 11. Nc4 h4 12. Bxc6+ bxc6 13. Nxe5 hxg3 14. hxg3 c5 15. e4 Qd6 16. Bf4 Qe6 17. f3 gxf3 18. Qxf3 Bf6 19. Nd5 Bxe5 20. Bxe5 Qxe5 21. Qxf7+ Kd8 22. Rf4 Nxd5 23. exd5 Qe3+ {0-1 (23) Xu,Y (2452)-Wan,Y (2521) Shenyang 2019}) 11... Nxb4 12. Nc4 h4 (12... f6 $11 {keeps the balance.}) 13. Nxe5 $16 hxg3 (13... Qd4 $6 14. Bb2 $11) 14. hxg3 Qd4 {[%mdl 64] Double Attack} 15. Nc4 Qc5 16. Ne4 (16. Nxb6 $16 axb6 17. a3) 16... Qh5 $14 {[%csl Gh8][%cal Rh5h2]} 17. Re1 Be6 18. Ba3 (18. Ned6+ $14 cxd6 19. Rxb4) 18... f5 $36 {[%mdl 2048] Black is more active.} (18... Nxc4 $6 19. Bxb4 Nb6 20. Bxe7 $16) 19. Bxb4 {Hoping for Nxb6.} fxe4 20. Nxb6 $2 {[#]} ({Better is} 20. Bxe7 $1 $11 Kxe7 21. Qc1) 20... Qh2+ $1 $17 (20... axb6 21. Bxe7 Kxe7 22. Qc2 $16) (20... cxb6 21. dxe4 Bf6 22. Ba3 $16) 21. Kf1 {[#]} O-O $1 ({And not} 21... axb6 22. Qc1 $14) 22. Qc1 $2 {[%mdl 8192] [#]} ({Don't play} 22. Bxe7 $6 e3 $11) ({But not} 22. Nxa8 $2 Qxg3 23. Bf3 Qh2 $19) (22. dxe4 $17 Qxg3 23. Qd4) 22... Rxf2+ $3 {[%mdl 576] Clearance. Black mates.} 23. Kxf2 Rf8+ $1 24. Qf4 Rxf4+ 25. gxf4 Qxf4+ 26. Kg1 Qe3+ 27. Kh1 g3 {Accuracy: White = 55%, Black = 63%.} (27... Qh6+ $142 28. Kg1 Bxb4 29. Rxb4 g3 30. Rb5 axb6 31. dxe4 Qh2+ 32. Kf1 Bh3 33. Rg5+ Kf7 34. Rxg3 Qxg3 35. Bxh3 Qxh3+ 36. Kg1 Qe3+ 37. Kg2 c5 38. Rf1+ Ke6 39. a4 c4 40. Rf3 Qxe2+ 41. Kg3 c3 {[%mdl 64] Decoy} 42. Rxc3 Qe1+ {[%mdl 64] Double Attack} 43. Kf3 Qxc3+ 44. Kf4 Qh3 45. a5 bxa5 46. e5 Qd3 47. Kg5 Qg3+ 48. Kh6 Kxe5 49. Kh5 Kf6 50. Kh6 Qh4#) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.2"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Safranska, Anda"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2606"]
[BlackElo "2063"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,63,40,36,33,26,36,8,33,19,33,18,11,0,8,17,14,-1,8,2,19,15,50,43,57,64,68,70,63,60,96,85,97,92,75,66,176,176,163,166,152,149,268,286,506,493,592,591,745,725,29986,29987]} 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. d4 O-O 6. O-O Nc6 7. Nc3 a6 8. Bf4 Bf5 {E63: King's Indian: Fianchetto: Panno Variation with 7...a6} 9. Rc1 Ne4 10. Nd5 Bg4 $146 {The position is equal.} ({Predecessor:} 10... e6 11. Ne3 g5 12. Nxf5 exf5 13. Be3 Qf6 14. Nd2 Rae8 15. d5 Nd4 16. Nxe4 fxe4 {0-1 (44) Malakhov,V (2709)-Lin,C (2446) Beijing 2012}) 11. h3 Bd7 12. Be3 e6 13. Nc3 Nxc3 14. Rxc3 Rb8 15. Rc1 Ne7 16. Qd2 Bc6 17. Bh6 b6 18. Bxg7 Kxg7 19. d5 Bd7 20. dxe6 fxe6 21. b4 {[%cal Bb2b4,Bb4c5][%mdl 32]} Kg8 22. c5 bxc5 23. bxc5 d5 24. Rfe1 c6 ({Black should try} 24... Nf5 $14) 25. e4 $18 Qc7 26. exd5 cxd5 27. Nd4 {Threatens to win with c6.} e5 {[#]} (27... Rf6 $16 {was called for.} 28. c6 Bc8) 28. Qg5 $1 {[%csl LRe5,LRe7]} Bf5 $2 (28... Nf5) 29. g4 h6 30. Qxh6 exd4 31. gxf5 {White threatens Rxe7! and mate.} gxf5 {[#]} 32. Rxe7 $1 {[%mdl 576] Remove Defender. Accuracy: White = 79%, Black = 33%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.3"]
[White "Sanket Chakravarty"]
[Black "Pantsulaia, Levan"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2055"]
[BlackElo "2598"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,103,28,6,8,0,11,9,10,14,6,13,9,6,16,0,8,-33,50,45,48,45,45,41,64,65,77,-18,-13,-27,-47,-43,-24,-61,-48,-54,0,-95,-64,-57,7,14,83,70,62,77,83,95,65,0,82,46,227,206,211,212,224,221,222,223,227,225,206,174,173,168,219,217,231,166,256,246,609,602,1468,599,591,0,1431,1265,1141,505,572,517,1092,0,564,561,564,540,538,496,514,510]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 d6 6. O-O Nh6 7. b3 O-O {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3} (7... Nf5 8. Bb2 O-O 9. e3 Rb8 10. Qc1 a6 11. Nd5 e5 12. d3 b5 13. Nd2 Nfe7 14. Re1 Be6 15. Nxe7+ Nxe7 16. Ne4 f5 17. Nc3 b4 {½-½ (51) Meier,G (2654)-Khismatullin,D (2651) Berlin 2015}) 8. Bb2 f5 9. e3 e5 {The position is equal.} 10. Nd5 Rb8 $146 ({Predecessor:} 10... g5 11. Ne1 Be6 12. f4 gxf4 13. exf4 Qd7 14. a3 Rae8 {½-½ (33) Litvinov,V-Osnos,V Moscow 1963}) 11. d3 Be6 12. Nd2 $36 {[%mdl 2048] White has the initiative.} a6 13. f4 Re8 14. Nf3 exf4 ({Black should play} 14... Ng4 $15 15. h3 Bxd5 16. hxg4 Bxf3 17. Qxf3 e4) 15. Bxg7 $14 Kxg7 16. Nxf4 Bf7 17. Qd2 Qf6 18. Rae1 Re7 19. d4 ({White should try} 19. e4 $16) 19... Rbe8 $1 $11 20. Nd5 Bxd5 $1 21. cxd5 Nd8 22. dxc5 dxc5 23. Re2 Ndf7 (23... Ng4 $15) 24. Ne1 (24. b4 $1 $11 b6 25. bxc5 bxc5 26. Qc1) 24... Nd6 25. Nd3 {[#]} b6 ({Better is} 25... Rxe3 $1 $15 {[%mdl 512]} 26. Rxe3 (26. Qxe3 Rxe3) 26... Qd4) 26. Nf4 Nhf7 (26... Ne4 $11 27. Bxe4 Rxe4) 27. Ne6+ $16 Rxe6 $1 28. dxe6 Rxe6 29. e4 Qe7 {[%cal Rf5e4]} 30. Qd5 (30. Qc3+ $14 Kg8 31. Qd3) 30... Nxe4 {[#]} (30... fxe4 $11 31. Qa8 Ng5) 31. g4 $1 {[%cal Rg4f5][%mdl 512]} Re5 $2 {[#]} (31... Nc3 $14 32. Rxe6 Nxd5 33. Rxe7 Nxe7) (31... fxg4 32. Rxe4) 32. Rxe4 $1 $18 {[%mdl 576] Deflection} Rxe4 33. gxf5 gxf5 34. Bxe4 fxe4 {[%mdl 4096] Endgame KQR-KQN} 35. Rf4 Ne5 {...Qg5+ is the strong threat.} 36. Qxe4 Qd6 37. Qg2+ Ng6 38. Qb2+ Kh6 (38... Kg8 $142 39. Rf3 Nf4 40. Rg3+ Ng6) 39. Rf3 Nf4 40. Qf2 Qg6+ (40... Qd1+ {keeps fighting.} 41. Qf1 Qd4+ 42. Kh1 Qe4) 41. Kf1 Nh5 $2 (41... Qb1+ 42. Qe1 Qxe1+ 43. Kxe1 Kg5 44. Rg3+ Kf5) 42. Qe3+ Kg7 43. Qe7+ (43. Qe5+ $142 Kh6 44. Rf5) 43... Kh6 44. Qe3+ (44. Qf8+ $142 Kg5 45. Qd8+ Kh6 46. Qd2+ Qg5 47. Qd6+ Qg6 48. Rd3) 44... Kg7 $1 45. Qe5+ Kh6 46. Qf5 (46. Rf5 $142 a5 47. Kf2) 46... Qc6 47. Qf8+ Kg5 (47... Kg6 $142 48. Qf5+ Kh6) 48. Qf5+ Kh6 {[#]} 49. Rh3 $1 {White is clearly winning.} Qe8 50. Qf6+ Qg6 51. Qxg6+ ({Not} 51. Qf8+ Kg5 $18) 51... Kxg6 52. Rd3 {Accuracy: White = 57%, Black = 33%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.4"]
[White "Aleksandrov, Aleksej"]
[Black "Chilukuri Sai Varshith"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2592"]
[BlackElo "2045"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,48,14,25,37,36,31,29,15,20,11,34,18,70,54,75,30,62,50,42,54,72,73,83,73,101,102,119,114,233,231,231,226,188,219,374,373,424,400,554,558,550]} 1. Nf3 Nf6 2. e3 g6 3. b4 Bg7 4. Bb2 a5 (4... O-O 5. c4 b6 6. Be2 c5 7. a3 Bb7 8. O-O d6 9. d3 Nbd7 10. Nc3 e6 11. Qb3 Qe7 12. d4 Rab8 13. a4 d5 14. bxc5 bxc5 {½-½ (50) Nakamura,H (2754)-Topalov,V (2740) Riga 2019}) 5. b5 d5 6. c4 {A05: Réti Opening: 1 Nf3 Nf6} c6 7. cxd5 cxd5 8. Nc3 $146 {White has an edge.} ({Predecessor:} 8. Be2 O-O 9. O-O Nbd7 10. d4 Nb6 11. Nbd2 Ne8 12. a4 Nd6 13. Rc1 f6 14. Ne1 e5 15. Nd3 e4 16. Nc5 f5 {1-0 (40) McNab,C (2490)-Hennigan,M (2415) Isle of Man 1993}) 8... O-O 9. Qb3 Re8 10. Na4 Nbd7 ({Black should play} 10... Ne4 $11) 11. b6 $14 e5 12. h3 e4 13. Nd4 $1 Ne5 14. Nb5 Rb8 15. Nc7 Re7 16. Rc1 Bf5 17. Be2 Ne8 {[%cal Re8c7]} 18. Qxd5 ({Of course not} 18. Nxd5 $6 Rd7 $11) 18... Rd7 (18... Nc6 $16) 19. Qxa5 $18 Nc6 {[#]} 20. Rxc6 $1 bxc6 21. Bxg7 Kxg7 $2 (21... Nxg7 {might work better.} 22. Nc5 Rxb6 {[%mdl 64] Remove Defender} 23. Qxb6 Rxc7) 22. Na6 {Hoping for Qe5+.} Ra8 23. N4c5 Rd5 24. Qc3+ Qf6 {Accuracy: White = 91%, Black = 16%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.5"]
[White "Hegde, Ravi Gopal"]
[Black "Goganov, Aleksey"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2037"]
[BlackElo "2583"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,62,33,14,27,25,72,34,44,31,22,18,44,30,28,3,16,0,0,0,0,22,17,0,0,-27,35,20,42,8,52,29,36,16,52,0,0,3,31,-50,-37,-43,-31,-297,-56]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. Be3 e6 7. Be2 cxd4 8. cxd4 Bb4+ 9. Nc3 O-O 10. O-O Bxc3 11. bxc3 {[%cal Bb2c3,Bc3c4][%mdl 32]} b6 {B22: Sicilian: 2 c3} 12. c4 (12. Re1 Bb7 13. c4 Qd6 14. Rb1 Qc7 15. Qa4 Ng4 16. h3 Nxe3 17. fxe3 Ne7 18. Qc2 Qg3 19. Bd1 {½-½ (60) Stromboli,C (2311)-Rambaldi,F (2554) Civitanova Marche 2016}) 12... Qa5 $146 ({Predecessor:} 12... Qd6 13. h3 Bb7 14. Qa4 {½-½ (14) Velcheva,M (2233)-Radeva,V (2275) Pleven 2018}) 13. Bd2 Qa3 {White is slightly better.} 14. Bc1 Qd6 15. Bb2 Bb7 16. Qd2 Rfd8 17. Rad1 Rac8 18. Qg5 {[#] Strongly threatening d5.} h6 19. Qh4 Ne7 20. Ne5 Qb4 21. Ba1 $1 Be4 22. Qh3 Bf5 (22... Nf5 $11) 23. Qe3 Bh7 24. Rfe1 Nf5 25. Qc1 Nd7 26. Nf3 Qa4 27. d5 exd5 28. Rxd5 {[#] Hoping for Qd2.} Nf8 {...Rxd5 is the strong threat.} 29. Red1 ({White should try} 29. Rxd8 $14 Rxd8 30. Qc3) 29... Rxd5 $15 30. Rxd5 Qxa2 31. Qc3 $2 {[%mdl 8192]} (31. Rd2 $15 Qa4 32. Bb2) 31... f6 $2 {Accuracy: White = 27%, Black = 29%.} (31... Qxe2 $19 32. Rxf5 f6) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.6"]
[White "Mchedlishvili, Mikheil"]
[Black "Vinoth Kumar, M.."]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2578"]
[BlackElo "2012"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,99,68,74,82,111,83,101,92,78,0,8,10,125,109,112,114,134,118,108,130,214,207,204,214,225,182,187,136,145,128,122,127,166,144,175,164,177,170,183,169,186,156,164,148,140,147,265,90,137,79,72,80,78,61,296,295,260,293,383,396,393,375,293,283,280,269,1154,1131,4678,4678,4678,4614,4133,4133,2205,2261,1654,1580,1272,716,1270,1231,1679,1592,1423,1425,823,685]} 1. d4 d6 2. Nf3 g6 3. c4 Nd7 4. g3 Bg7 5. Bg2 e5 6. Nc3 Nh6 7. dxe5 dxe5 8. h4 {A41: 1 d4 d6: Tartakower System and Modern Defence} f6 9. Qc2 $146 ({Predecessor:} 9. Ne4 Qe7 10. a3 Nc5 11. Nxc5 Qxc5 12. Qd5 Qe7 13. Be3 Nf5 14. Bc5 c6 15. Bxe7 cxd5 16. Bb4 dxc4 17. Rc1 a5 18. Bc5 Be6 19. g4 Ne7 {½-½ (19) Batinic,P (2309)-Stojanovic,D (2485) Jahorina 2012}) 9... Nf7 10. Be3 {White is better.} c6 11. Rd1 (11. O-O-O $16) 11... Qe7 $11 12. h5 g5 (12... f5 $1 $11 {remains equal.}) 13. Ne4 $16 h6 {With the idea ...f5.} 14. Bh3 $36 {[%mdl 2048] White is in control.} O-O 15. Bxd7 Bxd7 16. Bc5 {[%mdl 64] [#] Skewer} Qe6 (16... Qe8 $16 {was worth a try.} 17. Bxf8 Kxf8) 17. Bxf8 $18 Rxf8 18. Nc5 Qf5 19. Qxf5 Bxf5 20. e4 ({Don't play} 20. Nxb7 $6 Rb8 $16) ({Better is} 20. Rg1 $18) 20... Bg4 $16 {[#]} 21. Rd3 $1 b6 22. Nb3 Re8 23. Nfd2 Bf8 24. c5 bxc5 25. Nc4 Be6 26. Nbd2 g4 27. b3 Ng5 28. O-O Bf7 29. Rd7 Bxh5 (29... Ra8 $16 30. Ne3 Bxh5) 30. Nd6 $2 (30. Rxa7 $18 {and the rest is easy.} Rb8 31. Ra6) 30... Ra8 31. N2c4 (31. Rc1 $142) 31... Bg6 32. Rd1 a5 33. Nf5 Bxf5 $2 ({Black should play} 33... Nxe4 $14 34. Ne7+ Bxe7 35. Rxe7 Be8) 34. exf5 $18 Nf3+ 35. Kg2 Nd4 36. Ne3 a4 37. Nxg4 Bg7 38. Rh1 axb3 39. axb3 Ra2 $2 (39... Nxf5 40. Rh5 Nd4 41. Nxh6+ Bxh6) 40. Nxh6+ {White is clearly winning.} Bxh6 41. Rxh6 {[%mdl 4096] Endgame KRR-KRN} e4 42. Rd8+ Kg7 43. Rg6+ Kf7 44. Rd7+ Kf8 45. Rxf6+ Ke8 46. Rdd6 e3 47. Rfe6+ Nxe6 48. Rxe6+ {[%mdl 64] Double Attack} Kf7 49. Rxe3 Ra3 50. g4 {Accuracy: White = 61%, Black = 40%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.7"]
[White "Sa, Kannan"]
[Black "Rozum, Ivan"]
[Result "0-1"]
[ECO "A70"]
[WhiteElo "2022"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,0,-2,0,18,22,30,29,44,17,56,25,31,-25,-13,0,-4,-12,-4,-22,-36,-28,57,24,26,0,0,0,0,-26,0,-51,-8,-58,31,39,43,37,51,28,68,46,51,-70,-73,-87,-88,-97,-95,-200,-188,-205,-184,-198,-190,-268,-268,-307,-298,-299,-281,-288,-283,-805,-806,-835,-806]} 1. d4 Nf6 2. Nh3 d6 3. g3 ({Predecessor:} 3. Na3 g6 4. c3 Bg7 5. e3 Nc6 6. e4 Nxe4 7. Be2 O-O 8. O-O Bxh3 9. gxh3 e6 {0-1 (28) Nielsen,F-Pesonen,H Finland 2000}) 3... g6 4. f3 Bg7 5. Nf2 O-O 6. e4 {A70: Modern Benoni: 6 e4 g6 7 Nf3.} Nbd7 7. Be2 e5 8. d5 {White has an edge.} Ne8 9. h4 f5 10. h5 f4 11. g4 (11. gxf4 $14 exf4 12. hxg6) 11... gxh5 $1 $11 12. Rxh5 Bf6 13. Rh2 Bh4 14. Kd2 Bg3 $36 {[%mdl 2048] White is under pressure.} 15. Rg2 Ng7 (15... c6 $11 16. Nc3 Rf7) 16. Qg1 h5 17. Rxg3 (17. gxh5 {with more complications.} Nf6 18. b3 Ngxh5 19. Kc3 Bd7 20. a4) 17... fxg3 18. Qxg3 hxg4 19. Nxg4 Nf6 20. Nxf6+ (20. Nh6+ $11 Kh7 21. Kd1) 20... Qxf6 $15 21. Kc3 c6 (21... Kf7 $15) 22. Na3 $14 cxd5 {White must now prevent ...d4+.} 23. Bg5 $1 {[%cal Rg5f6]} Qg6 24. Rg1 $1 Be6 25. Qh2 {Bh6 is the strong threat.} Qh7 ({But not} 25... dxe4 $2 26. Bh6 $18) 26. Qxh7+ (26. Bh6 $1 $14 Rac8+ 27. Kd2) 26... Kxh7 $15 27. exd5 Bxd5 28. Bd3+ Kh8 29. Nb5 (29. Be7 $17 {might work better.}) 29... Rxf3 $19 30. Kd2 {[#] Black should prevent Nc7.} Ne8 $1 ({And not} 30... Bxa2 31. Nxd6 Ne6 32. Be7 $11) 31. Nc3 Bc6 32. Rh1+ (32. Ke2 $142) 32... Kg8 33. Bc4+ Kg7 {Threatens to win with ...Rxc3!} 34. Bh6+ {[#]} Kg6 $1 {Strongly threatening ...Rf2+.} 35. Nd5 Rg3 36. Rh2 $2 (36. Be3) 36... Bxd5 37. Bxd5 Nf6 {Accuracy: White = 52%, Black = 85%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.8"]
[White "Bogdanovich, Stanislav"]
[Black "Abinandhan R"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2562"]
[BlackElo "1987"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,77,18,29,40,36,38,21,32,75,71,66,65,75,76,75,86,175,190,190,181,187,166,198,130,191,128,156,148,147,135,129,138,271,275,245,260,251,228,351,342,302,298,517,510,684,672,620,541,789,771,1171,2469,1481,1611,29989,29990,29993,29991]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. cxd5 exd5 6. e3 c6 7. Bd3 Nbd7 {[%cal Bb8d7,Bd7f8,Bf8e6][%mdl 32]} 8. Qc2 Nf8 9. Nf3 Ne6 10. Bh4 g6 11. h3 Ng7 12. g4 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2)} (12. O-O-O Bf5 13. g4 Bxd3 14. Qxd3 O-O 15. Bxf6 Bxf6 16. h4 Ne6 17. Kb1 Rc8 18. g5 Bg7 19. Ne5 Nc5 {1-0 (39) Lupulescu,C (2634)-Grachev,B (2687) Legnica 2013}) 12... Be6 13. O-O-O Nd7 14. Bg3 {The position is equal.} h5 15. Ne5 Nxe5 16. Bxe5 Bf6 $1 17. f4 Bxe5 ({Wrong is} 17... hxg4 $2 18. hxg4 Rf8 19. f5 $18) 18. dxe5 Qd7 ({But not} 18... hxg4 $2 19. hxg4 Rg8 20. f5 $18) (18... Bd7 $16) 19. e4 $1 $18 d4 $146 ({Predecessor:} 19... dxe4) 20. Na4 Qc7 21. f5 Bxa2 22. b4 ({White should try} 22. b3 $1 $18) 22... a5 (22... Be6 $16) 23. b5 (23. Qxa2 $18 axb4 24. Qb3) 23... Bb3 24. Qxb3 {Black must now prevent bxc6.} cxb5+ 25. Kb2 bxa4 {[#]} 26. Qb5+ $1 Qc6 (26... Kf8 $16 {was worth a try.}) 27. Rc1 Qxb5+ 28. Bxb5+ Kf8 {[#]} 29. Rc7 $1 {Hoping for Bc4.} gxf5 (29... hxg4 {is a better defense.} 30. fxg6 Rxh3 31. Rxf7+ Kg8) 30. gxf5 Ne8 31. Rxb7 Rc8 $2 (31... a3+ 32. Kxa3 Rc8) 32. Bxa4 Rg8 33. Rc1 Rg2+ 34. Kb1 Rd8 35. Bb3 Rg7 36. f6 Rh7 37. e6 Ra8 38. e5 h4 39. exf7 {Played: Rc1-g1} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.9"]
[White "Sri Sai Baswanth P"]
[Black "David, Alberto"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2008"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "164"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:06:04]} e5 {[%emt 0:00:33]} 2. g3 {[%emt 0:00:06]} c6 {[%emt 0:01:42]} 3. Nf3 {[%emt 0:00:08]} d6 {[%emt 0:01:13]} 4. Nc3 {[%emt 0:00:08]} Nd7 {[%emt 0:00:32]} 5. Bg2 {[%emt 0:01:31]} Ngf6 {[%emt 0:00:37]} 6. e4 {[%emt 0:01:33]} a6 {[%emt 0:00:26]} 7. O-O {[%emt 0:01:14]} b5 {[%emt 0:01:33]} 8. d4 {[%emt 0:01:01]} Bb7 {[%emt 0:02:08]} 9. Qe2 {[%emt 0:04:16]} Be7 {[%emt 0:03:37]} 10. Rd1 {[%emt 0:01:01]} Qb8 {[%emt 0:03:07]} 11. c5 {[%emt 0:05:50]} O-O {[%emt 0:05:44]} 12. cxd6 {[%emt 0:12:36]} Bxd6 {[%emt 0:00:05]} 13. dxe5 {[%emt 0:00:49]} Nxe5 {[%emt 0:00:11]} 14. Nxe5 {[%emt 0:13:50]} Bxe5 {[%emt 0:00:05]} 15. f4 {[%emt 0:00:05]} Bxc3 {[%emt 0:01:29]} 16. bxc3 {[%emt 0:00:06]} Re8 {[%emt 0:00:02]} 17. Qd3 {[%emt 0:01:18]} Ng4 {[%emt 0:06:23]} 18. Ba3 {[%emt 0:00:50]} c5 {[%emt 0:04:20]} 19. h3 {[%emt 0:05:00]} c4 {[%emt 0:01:58]} 20. Qd4 {[%emt 0:00:04]} Nh6 {[%emt 0:01:33]} 21. Bd6 {[%emt 0:07:42]} Qc8 {[%emt 0:00:14]} 22. g4 {[%emt 0:01:46]} f6 {[%emt 0:06:33]} 23. e5 {[%emt 0:02:57]} Bxg2 {[%emt 0:01:47]} 24. Kxg2 {[%emt 0:00:34]} Nf7 {[%emt 0:01:15]} 25. Qd5 {[%emt 0:00:08]} fxe5 {[%emt 0:05:29]} 26. fxe5 {[%emt 0:00:17]} Qe6 {[%emt 0:03:54]} 27. a4 {[%emt 0:00:07]} Rad8 {[%emt 0:02:01]} 28. axb5 {[%emt 0:01:23]} axb5 {[%emt 0:00:44]} 29. Ra6 {[%emt 0:02:09]} h5 {[%emt 0:07:59]} 30. Qxe6 {[%emt 0:02:33]} Rxe6 {[%emt 0:00:28]} 31. Rd5 {[%emt 0:03:19]} hxg4 {[%emt 0:00:46]} 32. hxg4 {[%emt 0:00:04]} Nxe5 {[%emt 0:00:31]} 33. Rxe5 {[%emt 0:06:15]} Rexd6 {[%emt 0:00:07]} 34. Rxd6 {[%emt 0:03:51]} Rxd6 {[%emt 0:00:05]} 35. Rxb5 {[%emt 0:00:04]} Rd3 {[%emt 0:00:20]} 36. Rc5 {[%emt 0:01:26]} Rxc3 {[%emt 0:00:06]} 37. Rc7 {[%emt 0:00:21]} Kh7 {[%emt 0:05:33]} 38. Rc6 {[%emt 0:00:05]} g5 {[%emt 0:00:28]} 39. Rc5 {[%emt 0:01:57]} Kg6 {[%emt 0:00:47]} 40. Kf2 {[%emt 0:00:24]} Rc1 {[%emt 0:04:06]} 41. Ke3 {[%emt 0:00:30]} c3 {[%emt 0:02:00]} 42. Rc6+ {[%emt 0:01:03]} Kf7 {[%emt 0:00:11]} 43. Kd3 {[%emt 0:01:30]} Rg1 {[%emt 0:04:10]} 44. Rxc3 {[%emt 0:01:03]} Rxg4 {[%emt 0:01:01]} 45. Rc6 {[%emt 0:00:04]} Rf4 {[%emt 0:00:49]} 46. Ke3 {[%emt 0:00:06]} Rf1 {[%emt 0:00:53]} 47. Ke2 {[%emt 0:00:16]} Rf5 {[%emt 0:00:07]} 48. Ke3 {[%emt 0:00:07]} Kg7 {[%emt 0:02:00]} 49. Ra6 {[%emt 0:00:23]} Kh7 {[%emt 0:01:27]} 50. Rb6 {[%emt 0:00:10]} Rf7 {[%emt 0:00:24]} 51. Ra6 {[%emt 0:00:08]} Rf5 {[%emt 0:01:37]} 52. Rb6 {[%emt 0:00:09]} Kg8 {[%emt 0:00:35]} 53. Rb7 {[%emt 0:00:38]} Kf8 {[%emt 0:00:23]} 54. Ke4 {[%emt 0:00:23]} Rf4+ {[%emt 0:00:33]} 55. Ke3 {[%emt 0:00:05]} Rf1 {[%emt 0:02:53]} 56. Ke2 {[%emt 0:00:56]} Rf7 {[%emt 0:00:37]} 57. Rxf7+ {[%emt 0:00:51]} Kxf7 {[%emt 0:00:05]} 58. Kf3 {[%emt 0:00:03]} Ke6 {[%emt 0:00:06]} 59. Kg4 {[%emt 0:00:08]} Kf6 {[%emt 0:00:04]} 60. Kg3 {[%emt 0:00:03]} Kg7 {[%emt 0:00:05]} 61. Kg4 {[%emt 0:00:09]} Kh6 {[%emt 0:00:22]} 62. Kg3 {[%emt 0:00:03]} Kh5 {[%emt 0:00:05]} 63. Kh3 {[%emt 0:00:03]} Kg6 {[%emt 0:00:05]} 64. Kg4 {[%emt 0:00:03]} Kf6 {[%emt 0:08:21]} 65. Kg3 {[%emt 0:00:04]} Kf5 {[%emt 0:00:03]} 66. Kf3 {[%emt 0:00:03]} g4+ {[%emt 0:00:07]} 67. Kg3 {[%emt 0:00:03]} Kg5 {[%emt 0:00:04]} 68. Kg2 {[%emt 0:00:04]} Kg6 {[%emt 0:00:03]} 69. Kg3 {[%emt 0:00:04]} Kf5 {[%emt 0:00:04]} 70. Kg2 {[%emt 0:00:07]} Kf4 {[%emt 0:04:52]} 71. Kf2 {[%emt 0:00:04]} g3+ {[%emt 0:03:30]} 72. Kg2 {[%emt 0:00:03]} Kg4 {[%emt 0:00:04]} 73. Kg1 {[%emt 0:00:04]} Kh3 {[%emt 0:00:04]} 74. Kh1 {[%emt 0:00:05]} Kh4 {[%emt 0:00:04]} 75. Kg2 {[%emt 0:00:03]} Kg4 {[%emt 0:00:03]} 76. Kg1 {[%emt 0:00:03]} Kg5 {[%emt 0:00:20]} 77. Kg2 {[%emt 0:00:06]} Kf4 {[%emt 0:02:58]} 78. Kg1 {[%emt 0:00:05]} Ke5 {[%emt 0:00:03]} 79. Kg2 {[%emt 0:00:06]} Kf4 {[%emt 0:00:06]} 80. Kg1 {[%emt 0:00:02]} Kf3 {[%emt 0:00:04]} 81. Kf1 {[%emt 0:00:04]} g2+ {[%emt 0:05:34]} 82. Kg1 {[%emt 0:00:04]} Kg3 {[%emt 0:00:04]} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.10"]
[White "Fedorov, Alexei"]
[Black "Borgaonkar Akshay"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2562"]
[BlackElo "1961"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,103,27,27,27,27,27,27,27,34,22,12,12,31,16,18,17,22,29,33,0,20,8,27,20,28,22,43,-16,35,2,25,25,39,0,0,0,0,0,0,0,0,0,0,0,0,0,27,0,76,78,91,76,78,76,131,121,197,204,280,290,277,286,320,299,416,427,467,397,405,406,388,389,378,370,459,437,836,832,1784,1294,1701,1535,5289,5385,29978,29973,29991,29992]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nge2 O-O 6. Ng3 e5 7. d5 a5 8. Be2 Na6 9. h4 h5 $1 10. Bg5 {[%cal Re2h5] E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2} Qe8 11. Qd2 (11. Qc2 Bd7 12. f3 Nh7 13. Be3 Qe7 14. Nf1 f5 15. O-O-O Nb4 {½-½ (65) Le,Q (2714)-Demchenko,A (2679) St Petersburg 2018}) 11... Nc5 12. f3 {White has an edge.} Bd7 13. Nb5 $146 ({Predecessor:} 13. Bh6 Nh7 14. O-O-O Qe7 15. Nf1 f5 16. exf5 gxf5 17. Ng3 Be8 {1-0 (39) Ivanisevic,I (2583)-Popov,M (2394) St Petersburg 2018}) 13... Bxb5 14. cxb5 Kh7 15. Rc1 Nfd7 16. b3 b6 17. O-O Ra7 18. Bc4 f6 19. Be3 f5 $1 20. exf5 gxf5 21. Bg5 f4 22. Qc2+ ({Better is} 22. Ne2 $14) 22... Qg6 ({Black should play} 22... Kh8 $11 23. Ne2 Bf6) 23. Nxh5 Qxc2 24. Rxc2 Bh6 25. Bxh6 Kxh6 26. g4 fxg3 $1 27. Nxg3 Rf4 28. Rh2 Ra8 29. Rh3 Raf8 30. Ne2 R4f6 31. Kf2 e4 {[%cal Re4f3]} 32. f4 Ne5 {[#]} (32... Rg6 $11 {remains equal.}) 33. Ke3 $1 $16 Ng4+ 34. Kd4 Ne5 35. Rg3 Ng6 {[#]} (35... a4 $142) 36. Ke3 $1 Ne7 (36... Nd7 $16 {might work better.} 37. h5 (37. Kxe4 Nc5+ 38. Kd4 Nxf4 $16) 37... Ne7) 37. Nd4 $18 Nf5+ 38. Nxf5+ Rxf5 39. Rg5 R5f6 40. Be2 Rg6 41. Rfg1 Rxg5 42. hxg5+ {[%mdl 4096] Endgame KRB-KRN} ({Weaker is} 42. Rxg5 Kh7 $18) 42... Kg7 43. Rh1 Rf5 44. Bc4 Rf7 45. Rh4 Kg6 46. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} Kf5 (46... Nd3 $142 47. Kxe4 Nc5+ 48. Kd4 Kg7) 47. Be2 Rg7 48. Bg4+ Kg6 49. b4 axb4 50. axb4 Nd3 51. Be6 {[%csl Gg5][%cal Rh4h6]} Nxf4 52. Kxf4 {Accuracy: White = 76%, Black = 40%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.11"]
[White "Nambiar, Vivek"]
[Black "Visakh N R"]
[Result "0-1"]
[ECO "E55"]
[WhiteElo "1980"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,36,34,25,25,16,56,43,34,46,75,22,30,37,41,29,31,0,0,2,107]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O Nbd7 9. a3 Bxc3 10. bxc3 Qc7 {E55: Nimzo-Indian: Rubinstein: Main Line: 7...dxc4 8 Bxc4 Nbd7} (10... b6 11. Re1 Bb7 12. Bd3 Be4 13. Bf1 Bb7 14. Nd2 e5 15. Bb2 Qc7 16. e4 exd4 17. cxd4 cxd4 18. Rc1 Nc5 19. Bxd4 Qe7 20. Bxc5 bxc5 {1-0 (30) Lenic,L (2659)-Ghaem Maghami,E (2582) Dubai 2014}) 11. Qe2 b6 12. Bd3 e5 {[#] Strongly threatening ...e4.White is slightly better.} 13. e4 Bb7 $146 ({Predecessor:} 13... exd4 14. cxd4 cxd4 15. Nxd4 Nc5 16. f3 Rd8 17. Bb2 Nh5 18. Qc2 Nf4 19. Bc4 {1-0 (64) Hess,D-Boness,A USA 1982}) 14. dxe5 ({Better is} 14. d5 $16) 14... Ng4 15. Bf4 Ndxe5 16. Nxe5 Nxe5 17. Bg3 Qe7 18. Bc2 Kh8 {[%mdl 32768] Sensor Board Error (Ke4/e5)?} (18... c4 $11 {keeps the balance.}) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.12"]
[White "Yudin, Sergei"]
[Black "Trivedi Karan R"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2508"]
[BlackElo "1959"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,72,63,91,91,91,68,77,34,45,42,55,45,71,35,80,74,89,89,89,83,86,40,121,106,130,46,41,46,115,112,131,120,134,139,141,130,122,135,117,92,95,71,147,151,152,139,156,143,178,181,179,179,170,165,219,224,208,187,251,244,299,303,278,283,774]} 1. c4 Nf6 2. Nc3 e6 3. e4 d6 4. d4 c5 (4... Nbd7 5. Nf3 c5 6. d5 Be7 7. Be2 O-O 8. O-O Ne8 9. Be3 Bf6 10. Qd2 Bxc3 11. Qxc3 Qf6 12. Qd2 h6 13. Rac1 {1-0 (67) Wagner,D (2578)-Nielsen,R (2387) Sitges 2019}) 5. dxc5 dxc5 6. Qxd8+ {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} Kxd8 7. e5 Nfd7 8. Nf3 $146 {White is better.} ({Predecessor:} 8. Bf4 Nc6 9. O-O-O b6 10. Nf3 h6 11. Bd3 Bb7 12. Be4 {1-0 (48) Muzychuk,M (2357)-Ursic,M (2046) Ljubljana 2007}) 8... Nc6 9. Bf4 h6 10. h4 $1 a6 11. h5 Nd4 {Threatening ...Nc2+.} 12. Rd1 Nxf3+ 13. gxf3 b6 14. Bd3 Bb7 15. Ke2 Ke8 (15... Nb8 $1 $14) 16. Rhg1 $16 Rd8 17. Bh2 (17. Ke3 $16) 17... Nb8 $1 $14 18. Ke3 Rd4 (18... Nc6 $1 $14) 19. f4 $16 Nc6 20. Ne2 Rd7 {[#]} 21. f5 $1 Nd4 22. fxe6 Nxe6 23. f4 Be7 24. Be4 Bxe4 25. Kxe4 Rg8 (25... Rxd1 $142 26. Rxd1 f6) 26. f5 Ng5+ 27. Ke3 Nh3 28. Rgf1 Bg5+ 29. Kf3 {Threatens to win with Kg2.} Bd2 30. Kg2 Ng5 31. Nf4 Rd4 (31... Bxf4 $142 32. Rxd7 (32. Bxf4 Rd4 $16) 32... Kxd7 33. Bxf4 Ke7) 32. Nd5 $18 b5 33. b3 Rg4+ {[#]} (33... Kd8 $142 34. e6 fxe6 35. fxe6 Re8) 34. Bg3 $1 Ba5 35. Rf4 Rxf4 36. Bxf4 g6 $2 {Accuracy: White = 68%, Black = 33%.} (36... Bd8 37. Be3 Rh8 38. cxb5 axb5 39. Bxc5 Kd7) 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.13"]
[White "Potluri Supreetha"]
[Black "Stupak, Kirill"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1964"]
[BlackElo "2506"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,118,-4,-10,-10,-4,0,0,-5,-9,29,0,16,0,0,0,26,-56,-57,-77,-39,-36,-27,-39,-37,-33,-19,-29,0,0,0,0,0,0,0,0,0,-41,-43,-53,-53,-52,-8,-20,-13,-27,-33,-29,-16,-8,-4,-69,-58,-47,-57,-81,-50,-45,-45,-60,-60,-93,-80,-70,-73,-111,-116,-103,-102,-115,-95,-86,-87,-95,-87,-462,-458,-464,-464,-493,-456,-619,-619,-604,-604,-604,-583,-701,-669,-1471,-1468,-1251,-1378,-1477,-1557,-1588,-1560,-1564,-1303,-1589,-1589,-1389,-1172,-29975,-768,-6211,-6987,-5730,-4948]} 1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. c4 h5 {A30: Symmetrical English: Double Fianchetto and Hedgehog} 8. h4 Nh6 9. O-O Rb8 {The position is equal.} 10. Nc3 Qa5 $146 ({Predecessor:} 10... Nf5 11. e4 Nd6 12. Qd3 Qa5 13. e5 Nf5 14. Re1 O-O 15. Rb1 {0-1 (47) Yashmetov,M (2350)-Chigaev,M (2643) St Petersburg 2019}) 11. Qc2 Nf5 12. Bf4 Nd4 13. Qd2 e5 14. Be3 (14. Bg5 $1 $11) 14... Ba6 15. b4 Rxb4 (15... Qa3 $5 {[%cal Ra3c3]} 16. b5 Qxc3 {[%mdl 64] Remove Defender, Decoy} 17. Qxc3 Nxe2+ {[%mdl 64] Double Attack} 18. Kh2 Nxc3 19. bxa6 e4 $17) 16. Ne4 O-O 17. a3 Ra4 {[#] ...Qxd2 is the strong threat.} 18. Qxa5 Rxa5 19. Bd2 d5 20. Bxa5 {Black must now prevent cxd5.} dxe4 21. Bb4 Nxe2+ 22. Kh2 Rc8 23. Bc5 f5 24. Rfe1 Nd4 {aiming for ...Nc2.} 25. Rab1 Bxc4 26. Rb7 a6 27. Reb1 Bb5 28. Ra7 Ne6 29. Bd6 Rd8 30. Be7 Rd4 31. Rc1 (31. Bf1 $11) 31... Rd2 $15 32. a4 Bxa4 33. Rxa6 Bb5 34. Ra8+ $1 Kf7 35. Ra7 Ke8 $1 36. Bb4 Rd7 37. Rxd7 Kxd7 38. Rd1+ Nd4 39. Ra1 Bf6 40. Ra8 Bc4 41. Kg1 Ne2+ 42. Kf1 e3 43. Ke1 $2 {[%mdl 8192]} (43. fxe3 $17 {is more resistant.} Nxg3+ 44. Kg1) 43... Nc1 $19 44. Ra7+ Ke6 {And now ...Nd3+ would win.} 45. Bf1 Bxf1 46. Kxf1 {[%mdl 4096] Endgame KRB-KBN} e2+ 47. Ke1 Nd3+ {[%mdl 64] [#] Double Attack} 48. Kxe2 Nxb4 49. f3 Nd5 50. Kd3 f4 51. gxf4 exf4 52. Kc4 Bxh4 53. Ra6 Kd6 54. Ra7 Bf6 55. Kd3 Be5 56. Ke4 h4 57. Ra8 Nf6+ (57... h3 $142 58. Rd8+ Kc7 59. Rxd5 cxd5+ 60. Kxe5 h2 61. Kxd5 h1=Q 62. Ke4 g5 63. Ke5 Qxf3 64. Kf6 Qd5 65. Kg6 f3 66. Kh5 f2 67. Kg4 f1=Q 68. Kh5 Qdf7+ 69. Kxg5 Q1f4#) 58. Kd3 h3 59. Ra2 g5 {Accuracy: White = 50%, Black = 71%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.14"]
[White "Mushini Ajay"]
[Black "Rios, Cristhian Camilo"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "1952"]
[BlackElo "2498"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,71,58,34,36,31,35,37,35,16,24,27,23,0,57,49,64,1,99,86,118,12,69,18,46,43,43,40,58,81,158,141,124,140,170,169,230,136,169,177,230,122,142,131,286,278,296,290,285,288,412,184]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O Qc7 7. Qe2 d6 8. c4 g6 9. Nc3 Bg7 10. Nf3 O-O 11. Bf4 Nbd7 12. Rfd1 Nh5 {B42: Sicilian: Kan Variation: 5 Bd3} 13. Bd2 b6 14. Rac1 Bb7 {White is slightly better.} 15. Be3 Rae8 $146 ({Predecessor:} 15... Rac8 16. b3 Rfe8 17. Qd2 b5 18. Bd4 b4 19. Bxg7 Kxg7 {½-½ (48) Alekseev,E (2639)-Drygalov,A (2481) St Petersburg 2018}) 16. Bb1 f5 17. exf5 gxf5 (17... Bxc3 $11 18. Rxc3 exf5) 18. Ne1 $14 Nhf6 19. Qd2 (19. f3 $14) 19... Qxc4 (19... Ne5 $11) 20. Qxd6 $16 Qh4 21. Qf4 (21. Qc7 $16 Bc8 22. Nf3) 21... Qh5 ({Better is} 21... Qxf4 $11 22. Bxf4 Rf7) 22. h3 (22. Qc7 $14 Bc8 23. Nf3) 22... Nd5 23. Nxd5 Bxd5 24. Nd3 e5 25. Qg5 Qf7 {[#]} (25... Qxg5 $142 26. Bxg5 h6) 26. Nb4 $1 {[%mdl 64] Double Attack} Be6 27. Nxa6 f4 28. Bd2 Bc4 {[#]} (28... Nc5 $142) 29. Nb4 ({White should play} 29. Bb4 $1 $18 {Threatens to win with Rxc4.} Bxa6 30. Rc7) 29... Be2 30. Re1 Bh5 (30... Qh5 {might work better.} 31. Qxh5 Bxh5) 31. f3 $40 {[%mdl 128] White attacks with force.} (31. Rc6 $18) 31... h6 32. Qh4 Kh8 $2 (32... Nc5 $16 {keeps fighting.} 33. a3 Kh8) 33. Rc7 $18 Rg8 {intending ...Bxf3.} 34. Be4 Bf6 35. Qf2 Rg3 (35... Rg7 $142 36. Bc3 Qe6) 36. Bc6 {Accuracy: White = 39%, Black = 32%.} (36. Bc3 $142 Reg8 37. Rd1) 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.15"]
[White "Vasquez Schroeder, Rodrigo"]
[Black "Jayachandra Srinivas Vellanki"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2487"]
[BlackElo "1944"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,71,36,20,40,38,36,25,33,24,19,14,22,12,14,31,18,12,17,-31,-18,-58,-23,-47,-36,-40,-21,-123,-122,-121,-122,-121,-123,-122,-95,-107,-82,-88,-66,-62,-59,-66,-62,-72,-28,-70,-70,-75,-84,-94]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5 8. Bg5 h6 9. Bh4 Na6 10. Nd2 Qe8 11. O-O Nh7 12. a3 Bd7 13. Nb5 f5 {E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7} (13... h5 14. f3 Bh6 15. Rb1 a4 16. b4 axb3 17. Nxb3 Be3+ 18. Bf2 Bxf2+ 19. Rxf2 f5 20. exf5 gxf5 21. f4 Nf6 22. fxe5 Qxe5 23. Qd4 {½-½ (23) Ikonnikov,V (2548)-Popovic,D (2568) Gent 2013}) 14. exf5 {[%mdl 64] [#] Overworked Piece} gxf5 15. Bh5 Qb8 {White has an edge.} 16. Be7 $146 ({Predecessor:} 16. f4 Nf6 17. Be2 Qe8 18. Nf3 Ng4 19. Qd2 exf4 20. Kh1 Ne3 21. Rfe1 Bxb5 22. cxb5 {0-1 (61) Kadimova,I (2265)-De Vries,S (2180) Manila 1992}) 16... Re8 17. Bxe8 Qxe8 18. Bh4 Bxb5 19. cxb5 Qxb5 20. Qc2 Qxd5 21. Rfd1 Qf7 22. Nc4 Nc5 23. Nxa5 {[%mdl 64] [#] Decoy} Rxa5 (23... e4 {feels hotter.} 24. b4 Bxa1 25. bxc5 d5 26. Nxb7 Bf6) 24. b4 Ra4 25. bxc5 (25. Rab1 $11 {remains equal.}) 25... Rxh4 $17 26. cxd6 cxd6 27. Rxd6 Rc4 28. Qe2 Nf8 29. Rad1 Rc7 30. Qb5 Qa2 31. Rb6 Qxa3 32. Rxb7 Rxb7 33. Qxb7 Qc5 34. Qb3+ Kh7 35. g3 Qc6 36. Qf7 {Accuracy: White = 58%, Black = 63%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.16"]
[White "Likhit Chilukuri"]
[Black "Karthik Venkataraman"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1941"]
[BlackElo "2479"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,48,0,8,0,0,0,8,-18,-8,-14,-18,-35,-26,-58,-55,-54,-58,-58,-75,-72,-63,-142,-94,-91,-81,-95,-102,-659,-629,-898,-891,-1017,-1022,-1014,-1007,-987,-971,-1001,-995,-1175,-1041]} 1. e4 g6 2. Nc3 Bg7 3. f4 c5 4. Nf3 d6 5. Bb5+ Bd7 6. Bc4 {B23: Closed Sicilian: Lines without g3} Nc6 7. O-O (7. d3 Na5 8. Bd2 e6 9. e5 d5 10. Bb5 Nc6 11. Bxc6 Bxc6 12. O-O Ne7 13. Be1 Qb6 {½-½ (39) Jobava,B (2617)-Giri,A (2780) Batumi 2019}) 7... e6 8. d3 {The position is equal.} (8. f5 $5) 8... Nge7 9. f5 O-O 10. fxe6 fxe6 11. Qe1 $146 ({Predecessor:} 11. Kh1 Qb6 12. Bb3 Ne5 13. Nxe5 Bxe5 {½-½ (36) Har Even,A (2408)-Carapinha,F (2349) ICCF email 2015}) 11... Nd4 $1 12. Nxd4 Rxf1+ 13. Kxf1 Bxd4 14. Be3 Nc6 15. a3 (15. Bb3 $15) 15... Qf6+ 16. Kg1 Rf8 17. Nd1 {[#]} Ne5 $1 {[%cal Re5g4] Strongly threatening ...Ng4.} 18. Ba2 $2 {[%mdl 8192] [#]} (18. Bxd4 $17 cxd4 19. Nf2) 18... Ng4 $1 $19 {Black is clearly winning.} 19. Bxd4 Qxd4+ 20. Kh1 {[#]} Qe5 $1 {[%csl Gg4][%cal Re5h2][%mdl 512]} 21. g3 {[#]} Qh5 $1 {[%csl Gg4][%cal Rh5h2][%mdl 512]} 22. h4 g5 23. Kg2 gxh4 24. gxh4 Kh8 {Accuracy: White = 36%, Black = 100%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.17"]
[White "Vishnu Prasanna. V"]
[Black "Sreekar J S S"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2474"]
[BlackElo "1937"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,95,0,9,12,0,0,10,0,0,3,0,-6,-10,-13,0,-7,0,-2,17,13,24,-5,18,18,18,18,18,16,24,14,14,15,22,20,19,18,22,18,173,155,210,208,423,410,410,416,416,391,521,517,614,613,572,319,314,307,353,338,379,379,473,453,563,550,784,759,985,854,984,944,1297,1290,1290,1257,29982,29983,29990,29991,29992,29992,29997,12843,29998,29999]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. c4 Be7 6. h3 O-O 7. Nc3 d5 8. Rc1 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} (8. Be2 c5 9. dxc5 Bxc5 10. O-O Qe7 11. a3 Rd8 12. cxd5 Nxd5 13. Nxd5 Bxd5 14. Qc2 a5 15. Ng5 g6 {½-½ (70) Georgiev,K (2623)-Kravtsiv,M (2672) Riadh 2017}) 8... c5 9. dxc5 Bxc5 10. a3 {The position is equal.} dxc4 11. Bxc4 Qxd1+ 12. Kxd1 $146 ({Predecessor:} 12. Rxd1 Ne4 13. Nb5 a6 14. Nc7 Ra7 15. b4 Be7 {1-0 (39) Rajic,I (2051)-Link,U (1978) Bayern 2015}) 12... Nbd7 13. Ke2 a6 14. Rhd1 b5 15. Ba2 Rac8 16. g4 {Hoping for g5.} Nb6 17. Ne5 (17. g5 $5 {[%cal Rg5f6]} Ne4 18. Nxe4 Bxe4 19. Bb3 $11) 17... b4 18. axb4 Bxb4 19. f3 Nfd5 20. Nxd5 Nxd5 21. Bg3 a5 22. Bc4 a4 23. Nd3 $36 {[%mdl 2048] White has the initiative.} Be7 24. e4 Nb4 25. Ne5 {aiming for Rd7.} Ba6 $2 (25... Rxc4 $11 26. Rxc4 (26. Nxc4 Na2 $11) 26... Ba6) 26. Bxa6 $18 Nxa6 {[#]} (26... Rxc1 $16 27. Rxc1 Nxa6) 27. Nc6 $1 {[%cal Rc6e7]} Bc5 $2 {[#]} (27... Bf6 {is a better defense.} 28. Bd6 Rfe8) 28. Rxc5 $1 {[%mdl 576] Remove Defender} Nxc5 29. Ne7+ {[%mdl 64] Double Attack} Kh8 {White must now prevent ...Rcd8.} 30. Nxc8 Rxc8 {[%mdl 4096] Endgame KRB-KRN} 31. Rc1 Rc6 32. Bf2 Rb6 33. Bxc5 Rxb2+ {KRB-KR} 34. Ke3 h5 35. gxh5 a3 36. h6 Rb3+ 37. Kf4 gxh6 38. Bd4+ Kh7 39. Rg1 Rd3 40. Rg7+ Kh8 41. Bf6 a2 42. Rxf7+ Kg8 43. Ra7 Rd2 44. Ke5 Rf2 45. Kxe6 Rxf3 46. Rxa2 Rxh3 47. Ra8+ Kh7 48. Kf7 {Accuracy: White = 86%, Black = 41%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.18"]
[White "Vignesh N R"]
[Black "Vignesh N R"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2472"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,86,10,10,-2,0,-28,-22,-39,-33,-29,0,0,37,0,0,9,0,-11,-14,-22,-12,-32,0,-12,-19,-25,0,0,46,0,0,0,0,0,0,0,-39,-745,-760,-755,-713,-751,-750,-741,-739,-944,-945,-847,-758,-5312,-5250,-4794,-5123,-4806,-1446,-1054,-795,-5950,-5950,-5639,-5156,-4810,-4806,-29976,-29978,-29986,-29985,-29996,-29997,-29998,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e6 7. Bg2 Be7 8. O-O Qc7 9. h3 O-O 10. g4 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack} (10. a4 Nc6 11. Nde2 b6 12. g4 Bb7 13. Ng3 Rfe8 14. g5 Nd7 15. f4 Bf8 16. Kh2 Rad8 17. Be3 Nb4 18. Rf2 d5 19. e5 {1-0 (49) Becerra Rivero,J (2569)-Movsesian,S (2639) Dos Hermanas 2004}) 10... Nc6 11. Kh1 Nd7 12. f4 {The position is equal.} Nxd4 13. Qxd4 b6 $146 ({Predecessor:} 13... Bf6 14. Qe3 Nb6 15. g5 Bxc3 16. bxc3 Bd7 17. Rb1 Bb5 {1-0 (38) Potapov,P (2263)-Dudukovic,N Urgup 2004}) 14. g5 Re8 15. f5 Bb7 16. f6 Bf8 17. Be3 Rac8 18. Rad1 g6 19. h4 Qc4 20. Qd2 b5 {[%cal Bb6b5,Bb5b4,Bb4c3,Bc3b2][%mdl 32] White should prevent ...b4.} 21. Qf2 Qc6 22. h5 Ne5 23. Bd4 {Hoping for Bxe5.} gxh5 {And now ...b4 would win.} 24. Bxe5 dxe5 25. Rd3 {aiming for Rh3.} b4 26. Qh4 bxc3 27. Qxh5 $2 {[%mdl 8192] [#]} (27. b3 $15) 27... Red8 {Played: Qc6xe4} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.18"]
[White "Vignesh N"]
[Black "Vignesh N R"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1934"]
[BlackElo "2472"]
[Annotator "ChessBase"]
[PlyCount "86"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:53]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:06]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:06]} 4. Nxd4 {[%emt 0:00:04]} Nf6 {[%emt 0:00:03]} 5. Nc3 {[%emt 0:00:11]} a6 {[%emt 0:00:25]} 6. g3 {[%emt 0:00:40]} e6 {[%emt 0:01:23]} 7. Bg2 {[%emt 0:00:14]} Be7 {[%emt 0:00:03]} 8. O-O {[%emt 0:00:17]} Qc7 {[%emt 0:00:04]} 9. h3 {[%emt 0:04:33]} O-O {[%emt 0:00:09]} 10. g4 {[%emt 0:01:07]} Nc6 {[%emt 0:00:08]} 11. Kh1 {[%emt 0:06:15]} Nd7 {[%emt 0:01:24]} 12. f4 {[%emt 0:02:57]} Nxd4 {[%emt 0:03:12]} 13. Qxd4 {[%emt 0:00:26]} b6 {[%emt 0:01:11]} 14. g5 {[%emt 0:05:06]} Re8 {[%emt 0:00:19]} 15. f5 {[%emt 0:02:57]} Bb7 {[%emt 0:05:22]} 16. f6 {[%emt 0:07:26]} Bf8 {[%emt 0:00:39]} 17. Be3 {[%emt 0:01:30]} Rac8 {[%emt 0:00:57]} 18. Rad1 {[%emt 0:02:43]} g6 {[%emt 0:06:00]} 19. h4 {[%emt 0:00:55]} Qc4 {[%emt 0:06:50]} 20. Qd2 {[%emt 0:12:41]} b5 {[%emt 0:00:21]} 21. Qf2 {[%emt 0:17:27]} Qc6 {[%emt 0:22:13]} 22. h5 {[%emt 0:20:20]} Ne5 {[%emt 0:01:55]} 23. Bd4 {[%emt 0:01:45]} gxh5 {[%emt 0:01:29]} 24. Bxe5 {[%emt 0:05:45]} dxe5 {[%emt 0:00:01]} 25. Rd3 {[%emt 0:00:09]} b4 {[%emt 0:00:44]} 26. Qh4 {[%emt 0:03:19]} bxc3 {[%emt 0:00:35]} 27. Qxh5 {[%emt 0:00:09]} Qxe4 {[%emt 0:01:21]} 28. Bxe4 {[%emt 0:00:56]} Bxe4+ {[%emt 0:00:01]} 29. Kh2 {[%emt 0:03:14]} Bxd3 {[%emt 0:02:13]} 30. cxd3 {[%emt 0:00:05]} cxb2 {[%emt 0:00:02]} 31. g6 {[%emt 0:01:23]} hxg6 {[%emt 0:00:09]} 32. Rg1 {[%emt 0:00:18]} Rc7 {[%emt 0:09:51]} 33. Qxe5 {[%emt 0:00:15]} Rc2+ {[%emt 0:00:50]} 34. Kh3 {[%emt 0:00:14]} Rc1 {[%emt 0:01:17]} 35. Rxg6+ {[%emt 0:01:35]} fxg6 {[%emt 0:00:02]} 36. Qxb2 {[%emt 0:00:10]} Rc7 {[%emt 0:00:15]} 37. Kg4 {[%emt 0:00:17]} Rd7 {[%emt 0:01:54]} 38. Qh2 {[%emt 0:00:48]} Red8 {[%emt 0:00:34]} 39. Kg5 {[%emt 0:00:15]} Rh7 {[%emt 0:00:14]} 40. f7+ {[%emt 0:00:59]} Rxf7 {[%emt 0:00:19]} 41. Kxg6 {[%emt 0:00:06]} Rd5 {[%emt 0:02:21]} 42. a4 {[%emt 0:00:56]} Rdf5 {[%emt 0:00:11]} 43. Qh4 {[%emt 0:00:10]} Rg7+ {[%emt 0:00:13]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.19"]
[White "Taher, Yoseph Theolifus"]
[Black "Barath M"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "2462"]
[BlackElo "2264"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,151,0,29,29,30,17,20,0,0,0,0,16,51,62,54,62,40,43,81,73,81,78,118,45,84,87,92,85,101,82,91,85,71,31,38,35,34,37,44,52,39,27,66,24,68,64,113,110,122,126,126,142,135,139,131,129,122,131,129,137,207,218,293,284,277,290,274,236,214,109,109,109,106,107,102,105,105,84,113,105,110,98,132,134,129,124,120,125,125,123,113,112,225,217,191,191,184,184,202,184,184,184,184,184,183,177,183,179,174,141,171,91,91,0,112,112,139,138,145,143,250,98,102,95,6412,6103,5341,2663,29965,29967,29966,29965,29969,29967,29980,29977,29981,29982,29985,29986,29990,29991,29991,29992]} 1. e4 c5 2. Nc3 a6 3. g3 e6 4. Bg2 Nc6 {[%cal Bb8c6,Bc6e5,Be5c4][%mdl 32]} 5. d3 g6 6. Be3 {B24: Closed Sicilian: 3 g3 sidelines} d6 7. Nge2 Bg7 8. d4 {The position is equal.} cxd4 $1 9. Nxd4 Ne5 $146 ({Predecessor:} 9... Nge7 10. a4 O-O 11. O-O Ne5 12. Qe2 Qc7 {1-0 (26) Bernadskiy,V (2553)-Popescu,F (2181) Albena 2015}) 10. O-O Nc4 11. Bc1 $1 $36 {[%mdl 2048] White is more active.} Ne7 12. b3 Ne5 13. Qd2 N7c6 14. Nxc6 Nxc6 15. Bb2 O-O 16. Rfd1 (16. Rad1 $16) 16... Nd4 17. Na4 {[%cal Bc3a4,Ba4b6,Bb6d5,Bd5b4,Bb4c2,Bc2e3][%mdl 32]} e5 18. c3 ({Reject} 18. Bxd4 $6 exd4 19. Nb2 Bg4 $11) 18... Nb5 19. Qe3 Be6 20. Nb6 Rb8 21. Nd5 Nc7 22. Nb4 a5 23. Nc2 b5 24. Ba3 Ne8 25. Qd3 Rb6 26. Ne3 Kh8 27. Rac1 f5 28. exf5 {Played: Ba3-c5} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "2.20"]
[White "Dhanush Ragav N S"]
[Black "Neverov, Valeriy"]
[Result "0-1"]
[WhiteElo "1923"]
[BlackElo "2460"]
[Annotator "ChessBase"]
[PlyCount "1"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c3 {[%emt 0:00:00]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.1"]
[White "Ponkratov, Pavel"]
[Black "Pranesh M"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2622"]
[BlackElo "2317"]
[Annotator "ChessBase"]
[PlyCount "97"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:29]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:08]} 3. Bb5 {[%emt 0:00:00]} Nf6 {[%emt 0:00:07]} 4. O-O {[%emt 0:00:00]} Nxe4 {[%emt 0:00:03]} 5. d4 {[%emt 0:00:00]} Nd6 {[%emt 0:00:04]} 6. dxe5 {[%emt 0:00:01]} Nxb5 {[%emt 0:00:04]} 7. a4 {[%emt 0:00:03]} Nbd4 {[%emt 0:00:04]} 8. Nxd4 {[%emt 0:00:04]} Nxd4 {[%emt 0:00:03]} 9. Qxd4 {[%emt 0:00:05]} d5 {[%emt 0:00:04]} 10. c4 {[%emt 0:00:11]} dxc4 {[%emt 0:00:34]} 11. Qxc4 {[%emt 0:00:04]} Be6 {[%emt 0:01:27]} 12. Qb5+ {[%emt 0:05:11]} Qd7 {[%emt 0:01:31]} 13. Nc3 {[%emt 0:00:03]} c6 {[%emt 0:04:32]} 14. Qe2 {[%emt 0:00:07]} Qd4 {[%emt 0:02:18]} 15. a5 {[%emt 0:10:24]} Qg4 {[%emt 0:08:43]} 16. Qe3 {[%emt 0:05:22]} Be7 {[%emt 0:05:07]} 17. f4 {[%emt 0:01:34]} Qg6 {[%emt 0:10:30]} 18. Qf2 {[%emt 0:03:56]} Bf5 {[%emt 0:06:22]} 19. Be3 {[%emt 0:00:43]} O-O {[%emt 0:02:22]} 20. Bxa7 {[%emt 0:02:05]} f6 {[%emt 0:02:31]} 21. Bc5 {[%emt 0:06:42]} Rae8 {[%emt 0:02:38]} 22. Bxe7 {[%emt 0:05:05]} Rxe7 {[%emt 0:00:06]} 23. Qc5 {[%emt 0:00:21]} Rfe8 {[%emt 0:00:19]} 24. Rae1 {[%emt 0:01:05]} h5 {[%emt 0:05:41]} 25. Rf3 {[%emt 0:03:57]} Rd7 {[%emt 0:05:23]} 26. Rg3 {[%emt 0:06:44]} Qh6 {[%emt 0:03:20]} 27. Qc4+ {[%emt 0:02:44]} Be6 {[%emt 0:05:11]} 28. Qf1 {[%emt 0:00:28]} f5 {[%emt 0:03:13]} 29. Rg5 {[%emt 0:02:42]} h4 {[%emt 0:03:30]} 30. h3 {[%emt 0:06:28]} Red8 {[%emt 0:02:21]} 31. Qf2 {[%emt 0:00:18]} Rd2 {[%emt 0:03:33]} 32. Re2 {[%emt 0:06:52]} R2d4 {[%emt 0:01:08]} 33. Qe3 {[%emt 0:06:28]} Kf7 {[%emt 0:01:19]} 34. Kh2 {[%emt 0:01:19]} R8d7 {[%emt 0:01:17]} 35. Rc2 {[%emt 0:03:23]} Rd3 {[%emt 0:02:40]} 36. Qf2 {[%emt 0:00:18]} R3d4 {[%emt 0:02:28]} 37. Ne2 {[%emt 0:00:48]} Ra4 {[%emt 0:02:09]} 38. b4 {[%emt 0:02:07]} Rxb4 {[%emt 0:01:09]} 39. a6 {[%emt 0:00:08]} bxa6 {[%emt 0:00:35]} 40. Rxc6 {[%emt 0:00:33]} Rb2 {[%emt 0:00:55]} 41. Qe3 {[%emt 0:02:16]} Rdd2 {[%emt 0:02:19]} 42. Qa7+ {[%emt 0:00:44]} Rd7 {[%emt 0:00:33]} 43. Qxa6 {[%emt 0:01:25]} Rdd2 {[%emt 0:01:48]} 44. Qa7+ {[%emt 0:01:37]} Rd7 {[%emt 0:00:32]} 45. Rc7 {[%emt 0:02:10]} Rbd2 {[%emt 0:02:00]} 46. Rxd7+ {[%emt 0:00:17]} Rxd7 {[%emt 0:00:16]} 47. Qb6 {[%emt 0:00:55]} g6 {[%emt 0:01:35]} 48. Nd4 {[%emt 0:00:24]} Re7 {[%emt 0:00:01]} 49. Nc6 {[%emt 0:00:33]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.2"]
[White "Saravanan, V.."]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2325"]
[BlackElo "2606"]
[Annotator "ChessBase"]
[PlyCount "48"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:04:25]} c5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:10]} Nc6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:06]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:08]} Nf6 {[%emt 0:00:00]} 5. g3 {[%emt 0:00:11]} Qb6 {[%emt 0:00:00]} 6. Nc2 {[%emt 0:00:30]} h5 {[%emt 0:00:42]} 7. Bg2 {[%emt 0:04:55]} h4 {[%emt 0:00:41]} 8. O-O {[%emt 0:00:08]} hxg3 {[%emt 0:01:48]} 9. hxg3 {[%emt 0:00:05]} Qc5 {[%emt 0:10:35]} 10. e4 {[%emt 0:04:35]} d6 {[%emt 0:03:14]} 11. Be3 {[%emt 0:00:26]} Qxc4 {[%emt 0:19:39]} 12. Nc3 {[%emt 0:02:07]} Bh3 {[%emt 0:04:31]} 13. Bxh3 {[%emt 0:05:25]} Rxh3 {[%emt 0:00:03]} 14. Na3 {[%emt 0:00:09]} Qe6 {[%emt 0:01:29]} 15. Nab5 {[%emt 0:03:17]} Rc8 {[%emt 0:04:33]} 16. Qa4 {[%emt 0:10:24]} Rh5 {[%emt 0:02:53]} 17. Kg2 {[%emt 0:04:22]} a6 {[%emt 0:07:43]} 18. Na7 {[%emt 0:05:19]} Ra5 {[%emt 0:14:14]} 19. Qb3 {[%emt 0:05:46]} Qxb3 {[%emt 0:01:48]} 20. axb3 {[%emt 0:00:07]} Rxa1 {[%emt 0:00:02]} 21. Rxa1 {[%emt 0:00:10]} Nxa7 {[%emt 0:00:05]} 22. Bxa7 {[%emt 0:00:09]} e6 {[%emt 0:06:01]} 23. Bd4 {[%emt 0:01:38]} Nd7 {[%emt 0:00:21]} 24. b4 {[%emt 0:00:15]} Rc4 {[%emt 0:00:44]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.3"]
[White "Saravana, Krishnan P."]
[Black "Aleksandrov, Aleksej"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "2313"]
[BlackElo "2592"]
[Annotator "ChessBase"]
[PlyCount "103"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:01:32]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:16]} 3. Bb5 {[%emt 0:00:36]} a6 {[%emt 0:00:10]} 4. Ba4 {[%emt 0:00:46]} Nf6 {[%emt 0:00:06]} 5. O-O {[%emt 0:01:09]} Be7 {[%emt 0:00:08]} 6. Re1 {[%emt 0:00:46]} b5 {[%emt 0:00:08]} 7. Bb3 {[%emt 0:00:07]} d6 {[%emt 0:00:11]} 8. c3 {[%emt 0:00:59]} O-O {[%emt 0:00:05]} 9. h3 {[%emt 0:00:48]} Nb8 {[%emt 0:00:17]} 10. d4 {[%emt 0:01:06]} Nbd7 {[%emt 0:00:04]} 11. c4 {[%emt 0:00:07]} c6 {[%emt 0:00:13]} 12. Qc2 {[%emt 0:03:07]} Nh5 {[%emt 0:17:14]} 13. a3 {[%emt 0:04:47]} Bb7 {[%emt 0:12:38]} 14. Nc3 {[%emt 0:02:04]} Rc8 {[%emt 0:16:11]} 15. Be3 {[%emt 0:06:46]} g6 {[%emt 0:00:09]} 16. Bh6 {[%emt 0:09:27]} Ng7 {[%emt 0:00:30]} 17. Rad1 {[%emt 0:00:30]} Qc7 {[%emt 0:00:30]} 18. Qd2 {[%emt 0:00:30]} Nb6 {[%emt 0:00:30]} 19. cxb5 {[%emt 0:00:30]} axb5 {[%emt 0:00:30]} 20. Bg5 {[%emt 0:00:30]} Nc4 {[%emt 0:28:11]} 21. Qe2 {[%emt 0:28:08]} Bxg5 {[%emt 0:00:30]} 22. Nxg5 {[%emt 0:00:30]} exd4 {[%emt 0:08:41]} 23. Rxd4 {[%emt 0:01:29]} Qe7 {[%emt 0:00:30]} 24. Bxc4 {[%emt 0:00:30]} Qxg5 {[%emt 0:00:30]} 25. Ba2 {[%emt 0:00:30]} Rfd8 {[%emt 0:00:30]} 26. Red1 {[%emt 0:00:30]} Ne8 {[%emt 0:00:30]} 27. R4d3 {[%emt 0:00:30]} Kg7 {[%emt 0:00:30]} 28. b4 {[%emt 0:00:30]} f6 {[%emt 0:00:30]} 29. Qb2 {[%emt 0:00:30]} Qe5 {[%emt 0:00:30]} 30. Qb3 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 31. h4 {[%emt 0:00:30]} Nc7 {[%emt 0:00:30]} 32. h5 {[%emt 0:00:30]} c5 {[%emt 0:00:30]} 33. Qb2 {[%emt 0:00:30]} c4 {[%emt 0:00:30]} 34. Re3 {[%emt 0:00:30]} Qe5 {[%emt 0:00:30]} 35. hxg6 {[%emt 0:00:30]} hxg6 {[%emt 0:00:30]} 36. Qd2 {[%emt 0:00:30]} Ne6 {[%emt 0:00:30]} 37. Rg3 {[%emt 0:00:30]} Rd7 {[%emt 0:00:30]} 38. Bb1 {[%emt 0:00:30]} Rh8 {[%emt 0:00:30]} 39. Nd5 {[%emt 0:00:30]} Rh4 {[%emt 0:00:30]} 40. Ne3 {[%emt 0:00:30]} c3 {[%emt 0:00:30]} 41. Nf5+ {[%emt 0:00:30]} Kh7 {[%emt 0:00:30]} 42. Qe3 {[%emt 0:00:30]} gxf5 {[%emt 0:00:30]} 43. exf5 {[%emt 0:36:19]} Qxe3 {[%emt 0:10:45]} 44. fxe6+ {[%emt 0:00:08]} Kh6 {[%emt 0:01:09]} 45. Rxe3 {[%emt 0:01:00]} Rg7 {[%emt 0:00:25]} 46. f3 {[%emt 0:00:27]} Rc4 {[%emt 0:00:04]} 47. e7 {[%emt 0:00:27]} Bc6 {[%emt 0:01:35]} 48. Bc2 {[%emt 0:00:09]} Be8 {[%emt 0:00:20]} 49. Rxd6 {[%emt 0:00:09]} Rc7 {[%emt 0:00:46]} 50. Rxf6+ {[%emt 0:00:08]} Kg5 {[%emt 0:00:04]} 51. Rf8 {[%emt 0:00:46]} Rc8 {[%emt 0:00:04]} 52. Re5+ {[%emt 0:00:11]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.4"]
[White "Goganov, Aleksey"]
[Black "Srihari L R"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2583"]
[BlackElo "2302"]
[Annotator "ChessBase"]
[PlyCount "72"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:01:19]} d6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:39]} g6 {[%emt 0:00:00]} 3. c4 {[%emt 0:00:15]} Bg7 {[%emt 0:00:06]} 4. Nc3 {[%emt 0:00:11]} Bg4 {[%emt 0:01:09]} 5. e3 {[%emt 0:00:21]} c5 {[%emt 0:00:28]} 6. Be2 {[%emt 0:01:47]} cxd4 {[%emt 0:02:45]} 7. exd4 {[%emt 0:03:49]} Nc6 {[%emt 0:00:41]} 8. O-O {[%emt 0:04:18]} Nh6 {[%emt 0:07:47]} 9. d5 {[%emt 0:09:56]} Bxf3 {[%emt 0:00:22]} 10. Bxf3 {[%emt 0:00:05]} Ne5 {[%emt 0:00:22]} 11. Be2 {[%emt 0:03:12]} O-O {[%emt 0:11:15]} 12. f4 {[%emt 0:06:26]} Qb6+ {[%emt 0:04:13]} 13. Kh1 {[%emt 0:00:09]} Nd7 {[%emt 0:00:06]} 14. g4 {[%emt 0:01:11]} f5 {[%emt 0:03:15]} 15. g5 {[%emt 0:00:26]} Nf7 {[%emt 0:05:00]} 16. a4 {[%emt 0:12:52]} Nc5 {[%emt 0:10:19]} 17. a5 {[%emt 0:00:47]} Qc7 {[%emt 0:02:55]} 18. Ra3 {[%emt 0:04:55]} Bxc3 {[%emt 0:03:28]} 19. Rxc3 {[%emt 0:02:49]} Qxa5 {[%emt 0:00:24]} 20. Rh3 {[%emt 0:07:31]} Ne4 {[%emt 0:01:40]} 21. Bd3 {[%emt 0:15:28]} b5 {[%emt 0:12:37]} 22. Bxe4 {[%emt 0:04:58]} fxe4 {[%emt 0:00:11]} 23. Qg4 {[%emt 0:08:53]} Qc7 {[%emt 0:17:02]} 24. b3 {[%emt 0:00:54]} Qc8 {[%emt 0:01:22]} 25. f5 {[%emt 0:03:02]} Ne5 {[%emt 0:01:13]} 26. Qh4 {[%emt 0:00:55]} h5 {[%emt 0:08:27]} 27. gxh6 {[%emt 0:00:05]} Rxf5 {[%emt 0:00:05]} 28. Rg1 {[%emt 0:01:04]} Kh7 {[%emt 0:01:15]} 29. Bb2 {[%emt 0:01:17]} Qf8 {[%emt 0:00:51]} 30. Qxe4 {[%emt 0:00:31]} Rf4 {[%emt 0:04:32]} 31. Qb1 {[%emt 0:00:31]} Qf5 {[%emt 0:00:05]} 32. Qxf5 {[%emt 0:00:57]} Rxf5 {[%emt 0:00:05]} 33. c5 {[%emt 0:00:50]} dxc5 {[%emt 0:00:51]} 34. Re3 {[%emt 0:01:11]} Nf7 {[%emt 0:00:18]} 35. Rxe7 {[%emt 0:00:19]} Rd8 {[%emt 0:01:12]} 36. Rxa7 {[%emt 0:01:05]} Rdxd5 {[%emt 0:00:15]} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.5"]
[White "Samant Aditya S"]
[Black "Mchedlishvili, Mikheil"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2296"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,72,60,16,24,0,3,0,20,6,14,26,20,-45,-41,-57,-22,-59,-42,7,-21,-35,-8,-10,0,0,40,-120,-114,-100,-106,-251,-229,-355,-330,-336,-302,-1173,-26,-25,-23,-21,-13,-25,-8,-10,-8,-233,-223,-214,-224,-531,-516,-541,-520,-516,-465,-518,-420,-29980,-29981,-29991,-29992]} 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. f3 Nbd7 6. Qd2 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 7. O-O-O Nb6 {B07: Pirc Defence: Miscellaneous Systems.} 8. Bd3 b4 9. Nce2 a5 {The position is equal.} 10. g4 Qc7 11. h4 h5 12. g5 (12. gxh5 $1 $11 Nxh5 13. Nh3) 12... Nfd7 $15 13. f4 c5 14. Bb5 Bg7 15. f5 {Threatening fxg6.} O-O 16. Nf4 cxd4 17. Bxd4 Bxd4 18. Qxd4 Ne5 19. fxg6 $2 (19. Nge2 $14 {keeps the upper hand.}) 19... Bg4 $17 20. gxf7+ Rxf7 21. Nd5 (21. Rf1 $17) 21... Nxd5 $19 22. Qxd5 (22. g6 $142 Rff8 23. exd5) 22... Rc8 {[%csl Gc8][%cal Rc7c2]} 23. Rd2 {[#]} e6 $1 {[%cal Re6d5]} 24. Qxd6 $2 (24. Qd4 Qb7 25. Be2) 24... Qxd6 $2 (24... Nc4 $19 25. Qd3 Nxd2 26. Qxd2 Rd8) 25. Rxd6 $11 Nc4 $40 {[%mdl 128] Black mounts an attack.} 26. Bxc4 $1 Rxc4 27. Nh3 Rf3 28. Rd8+ Kg7 $1 29. b3 $2 (29. Rd7+ $11 Kg6 30. Rd3) 29... Rc7 $19 ({Weaker is} 29... Rxe4 30. Rd7+ Kg6 31. Rd3 $17) 30. Ra8 Bxh3 ({Don't play} 30... Rxh3 31. Rxh3 Bxh3 32. Rxa5) 31. Rxa5 $2 (31. Rh2) 31... Bg2 32. Rd1 {[#]} Rfc3 $1 33. Re5 {White hopes to continue with Rd2.} Rxc2+ {[%mdl 64] Double Attack} 34. Kb1 Bf3 35. Re1 (35. Rd7+ $19 Rxd7 36. Kxc2) 35... Be2 36. Rxe6 Bd3 {Accuracy: White = 44%, Black = 83%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.6"]
[White "Rozum, Ivan"]
[Black "Rohith Krishna S"]
[Result "1/2-1/2"]
[ECO "A18"]
[WhiteElo "2573"]
[BlackElo "2289"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,86,21,24,22,-16,32,11,29,27,27,30,55,51,60,25,34,6,23,17,33,24,32,10,9,12,22,21,24,11,29,10,11,2,-2,-11,67,10,10,8,20,-6,27,20,26,5,13,14,25,22,53,0,12,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nf3 ({Reject} 6. Nxe4 dxe4 7. Qa4+ Nc6 $11) 6... Nc6 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4).} 7. Be2 (7. Bb5 {feels hotter.} Bg4 8. d3 Nxc3 9. bxc3 Be7 10. h3) 7... Be7 (7... d4 {with more complications.} 8. Nxe4 d3 9. Nc3 dxe2 10. Qxe2 Bg4) 8. O-O O-O 9. d4 Nxc3 10. bxc3 f6 11. exf6 Bxf6 12. Ne1 Na5 13. Nd3 Bf5 14. Ne5 c5 15. Be3 Rc8 {[%cal Ba8c8,Bc8c5,Bc5f5][%mdl 32]} 16. Qa4 a6 17. Ng4 Be7 18. dxc5 Bxc5 19. Bxc5 Rxc5 20. Qd4 Qd6 21. Ne3 Nc6 22. Qd2 d4 (22... Be6 $11) 23. Nxf5 (23. Rad1 $14 Rd8 24. Bf3) 23... Rcxf5 $11 24. Rad1 {[%cal Rc3d4]} Rd8 25. c4 Rdf8 26. Bd3 Re5 27. Rfe1 (27. Rb1 {looks sharper.} Re7 28. Qc2 g6 29. c5 Qe5 30. Rb6) 27... Rfe8 28. Rxe5 Qxe5 29. Bf1 g6 30. Qb2 (30. g3 $14) 30... Re7 {The position is equal.} 31. Qa3 Kg7 32. g3 Rf7 33. f4 Qe6 34. Qd3 Re7 35. Kf2 Qf6 36. Re1 Ne5 37. Qd1 g5 38. Kg2 $1 gxf4 {[#] White must now prevent ...Qc6+.} 39. Qxd4 fxg3 40. hxg3 Qf3+ 41. Kh2 Qf6 {( -> ...Nf3+)} 42. Kg2 Qf3+ 43. Kh2 Qf6 {Accuracy: White = 83%, Black = 84%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.7"]
[White "Kunal, M.."]
[Black "Bogdanovich, Stanislav"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2288"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "102"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} Nf6 {[%emt 1:31:00]} 3. Nc3 {[%emt 0:00:00]} Nbd7 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:46]} e5 {[%emt 0:00:00]} 5. Bc4 {[%emt 0:00:11]} Be7 {[%emt 0:00:00]} 6. O-O {[%emt 0:01:08]} O-O {[%emt 0:00:00]} 7. Re1 {[%emt 0:00:54]} c6 {[%emt 0:00:00]} 8. a4 {[%emt 0:00:07]} a5 {[%emt 0:00:00]} 9. h3 {[%emt 0:05:19]} Nb6 {[%emt 0:00:00]} 10. Ba2 {[%emt 0:01:42]} Nfd7 {[%emt 0:00:00]} 11. Be3 {[%emt 0:02:06]} exd4 {[%emt 0:00:00]} 12. Bxd4 {[%emt 0:10:25]} Qc7 {[%emt 0:00:00]} 13. Qe2 {[%emt 0:03:21]} Ne5 {[%emt 0:00:00]} 14. Nh2 {[%emt 0:05:41]} Ng6 {[%emt 0:00:00]} 15. Ng4 {[%emt 0:07:46]} Be6 {[%emt 0:00:00]} 16. Bb3 {[%emt 0:19:56]} Bxb3 {[%emt 0:00:00]} 17. cxb3 {[%emt 0:00:08]} f5 {[%emt 0:00:00]} 18. exf5 {[%emt 0:04:20]} Rxf5 {[%emt 0:00:00]} 19. Qe6+ {[%emt 0:09:21]} Rf7 {[%emt 0:00:00]} 20. g3 {[%emt 0:00:27]} Nd7 {[%emt 0:00:00]} 21. f4 {[%emt 0:05:07]} d5 {[%emt 0:00:00]} 22. Rad1 {[%emt 0:08:16]} Bd6 {[%emt 0:00:00]} 23. Rf1 {[%emt 0:03:41]} Ndf8 {[%emt 0:00:00]} 24. Qe2 {[%emt 0:00:23]} Qd7 {[%emt 0:00:00]} 25. Qd3 {[%emt 0:02:08]} h5 {[%emt 0:00:00]} 26. f5 {[%emt 0:02:23]} Ne7 {[%emt 0:00:00]} 27. Ne3 {[%emt 0:01:31]} c5 {[%emt 0:00:00]} 28. Bxg7 {[%emt 0:00:25]} Rxg7 {[%emt 0:00:00]} 29. Nexd5 {[%emt 0:00:08]} Be5 {[%emt 0:00:00]} 30. f6 {[%emt 0:00:04]} Bd4+ {[%emt 0:00:00]} 31. Kh2 {[%emt 0:00:44]} Nxd5 {[%emt 0:00:00]} 32. fxg7 {[%emt 0:00:11]} Kxg7 {[%emt 0:00:00]} 33. Nxd5 {[%emt 0:00:57]} Qxd5 {[%emt 0:00:00]} 34. Rf5 {[%emt 0:01:44]} Qe6 {[%emt 0:00:00]} 35. Rdf1 {[%emt 0:05:36]} Re8 {[%emt 0:00:00]} 36. Kh1 {[%emt 0:00:33]} Ng6 {[%emt 0:00:00]} 37. Rf7+ {[%emt 0:00:03]} Kh6 {[%emt 0:00:00]} 38. Qd2+ {[%emt 0:00:26]} Qe3 {[%emt 0:00:00]} 39. Qg2 {[%emt 0:00:08]} Qxb3 {[%emt 0:00:00]} 40. g4 {[%emt 0:00:11]} Nh4 {[%emt 0:00:00]} 41. Rxb7 {[%emt 0:01:28]} Nxg2 {[%emt 0:00:00]} 42. Rxb3 {[%emt 0:00:06]} Ne3 {[%emt 0:00:00]} 43. Rf7 {[%emt 0:00:57]} hxg4 {[%emt 0:00:29]} 44. hxg4 {[%emt 0:00:39]} Kg5 {[%emt 0:00:17]} 45. Rb5 {[%emt 0:00:23]} Rh8+ {[%emt 0:01:43]} 46. Kg1 {[%emt 0:00:03]} Nc4+ {[%emt 0:00:07]} 47. Kg2 {[%emt 0:01:02]} Nd6 {[%emt 0:00:02]} 48. Rxa5 {[%emt 0:00:28]} Nxf7 {[%emt 0:00:12]} 49. b4 {[%emt 0:00:03]} Ne5 {[%emt 0:00:59]} 50. bxc5 {[%emt 0:00:09]} Kxg4 {[%emt 0:00:09]} 51. Ra6 {[%emt 0:00:41]} Rf8 {[%emt 0:01:09]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.8"]
[White "Pranav Vijay"]
[Black "Fedorov, Alexei"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2265"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "59"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:02:01]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:08]} 3. Bb5 {[%emt 0:00:07]} e6 {[%emt 0:00:11]} 4. Bxc6 {[%emt 0:00:17]} bxc6 {[%emt 0:00:04]} 5. O-O {[%emt 0:00:16]} Ne7 {[%emt 0:03:03]} 6. e5 {[%emt 0:01:02]} Ng6 {[%emt 0:01:09]} 7. d3 {[%emt 0:02:52]} f6 {[%emt 0:00:37]} 8. exf6 {[%emt 0:00:50]} gxf6 {[%emt 0:00:47]} 9. Re1 {[%emt 0:02:24]} d5 {[%emt 0:05:34]} 10. c4 {[%emt 0:04:49]} Be7 {[%emt 0:07:49]} 11. h4 {[%emt 0:05:56]} Rg8 {[%emt 0:05:41]} 12. h5 {[%emt 0:03:24]} Nh8 {[%emt 0:02:57]} 13. d4 {[%emt 0:07:02]} Qd7 {[%emt 0:09:28]} 14. Qc2 {[%emt 0:05:28]} Bb7 {[%emt 0:03:35]} 15. Qxh7 {[%emt 0:02:30]} O-O-O {[%emt 0:00:27]} 16. cxd5 {[%emt 0:02:37]} cxd5 {[%emt 0:15:25]} 17. Bf4 {[%emt 0:02:05]} Rg4 {[%emt 0:07:46]} 18. Bg3 {[%emt 0:01:35]} Rdg8 {[%emt 0:00:15]} 19. Nbd2 {[%emt 0:01:22]} R4g7 {[%emt 0:00:29]} 20. Qc2 {[%emt 0:00:48]} Nf7 {[%emt 0:01:11]} 21. dxc5 {[%emt 0:01:15]} e5 {[%emt 0:03:04]} 22. b4 {[%emt 0:04:17]} Nh6 {[%emt 0:07:15]} 23. Rac1 {[%emt 0:05:16]} Bc6 {[%emt 0:00:30]} 24. b5 {[%emt 0:00:32]} Bxb5 {[%emt 0:00:08]} 25. c6 {[%emt 0:00:06]} Qd6 {[%emt 0:05:23]} 26. Qb3 {[%emt 0:01:52]} Ba6 {[%emt 0:00:39]} 27. Red1 {[%emt 0:01:42]} Rg4 {[%emt 0:03:01]} 28. Qe3 {[%emt 0:01:08]} Nf5 {[%emt 0:08:37]} 29. Qxa7 {[%emt 0:00:48]} Qa3 {[%emt 0:02:30]} 30. Qd7+ {[%emt 0:00:10]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.9"]
[White "Visakh N R"]
[Black "Meenakshi Subbaraman"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2518"]
[BlackElo "2197"]
[Annotator "ChessBase"]
[PlyCount "79"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:00:24]} g6 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:33]} Bg7 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:37]} d6 {[%emt 0:00:00]} 4. e4 {[%emt 0:00:07]} e5 {[%emt 0:00:56]} 5. Nf3 {[%emt 0:01:38]} Nc6 {[%emt 0:01:36]} 6. Bg5 {[%emt 0:01:57]} f6 {[%emt 0:01:23]} 7. Be3 {[%emt 0:00:07]} Nh6 {[%emt 0:00:24]} 8. h3 {[%emt 0:06:55]} O-O {[%emt 0:03:58]} 9. Qd2 {[%emt 0:00:08]} Nf7 {[%emt 0:00:13]} 10. Be2 {[%emt 0:02:52]} f5 {[%emt 0:03:43]} 11. exf5 {[%emt 0:02:59]} gxf5 {[%emt 0:10:04]} 12. g3 {[%emt 0:01:36]} Kh8 {[%emt 0:03:17]} 13. O-O-O {[%emt 0:04:47]} a6 {[%emt 0:02:23]} 14. h4 {[%emt 0:08:36]} b5 {[%emt 0:06:16]} 15. h5 {[%emt 0:14:19]} exd4 {[%emt 0:14:01]} 16. Nxd4 {[%emt 0:01:24]} Nxd4 {[%emt 0:01:21]} 17. Bxd4 {[%emt 0:00:04]} Bb7 {[%emt 0:08:09]} 18. Bxg7+ {[%emt 0:15:15]} Kxg7 {[%emt 0:01:30]} 19. h6+ {[%emt 0:00:03]} Kg8 {[%emt 0:06:27]} 20. Qd4 {[%emt 0:03:32]} Ne5 {[%emt 0:00:47]} 21. Rh5 {[%emt 0:07:29]} Qf6 {[%emt 0:05:11]} 22. cxb5 {[%emt 0:02:33]} axb5 {[%emt 0:01:24]} 23. f4 {[%emt 0:00:07]} Ng4 {[%emt 0:19:39]} 24. Bxb5 {[%emt 0:10:42]} Qxd4 {[%emt 0:01:29]} 25. Rxd4 {[%emt 0:00:04]} Kh8 {[%emt 0:00:31]} 26. Bd3 {[%emt 0:02:16]} Bc8 {[%emt 0:00:27]} 27. Be2 {[%emt 0:00:16]} Be6 {[%emt 0:01:16]} 28. Bxg4 {[%emt 0:00:21]} fxg4 {[%emt 0:00:02]} 29. a3 {[%emt 0:00:07]} Rae8 {[%emt 0:00:58]} 30. Re4 {[%emt 0:00:34]} Bd7 {[%emt 0:02:01]} 31. Rxe8 {[%emt 0:03:01]} Rxe8 {[%emt 0:00:02]} 32. Kd2 {[%emt 0:00:36]} Re6 {[%emt 0:00:36]} 33. b4 {[%emt 0:01:48]} Be8 {[%emt 0:01:10]} 34. Ra5 {[%emt 0:00:04]} Kg8 {[%emt 0:00:42]} 35. Nd5 {[%emt 0:02:34]} Rxh6 {[%emt 0:00:45]} 36. Nxc7 {[%emt 0:00:05]} Bd7 {[%emt 0:01:47]} 37. Nd5 {[%emt 0:00:47]} Kf7 {[%emt 0:00:39]} 38. Ra7 {[%emt 0:00:19]} Ke6 {[%emt 0:00:20]} 39. Ne3 {[%emt 0:00:05]} Bc6 {[%emt 0:00:34]} 40. f5+ {[%emt 0:00:06]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.10"]
[White "Murali Krishnan B T"]
[Black "Yudin, Sergei"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2202"]
[BlackElo "2508"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,95,29,8,19,18,32,12,25,0,0,0,7,0,12,13,16,4,74,74,113,125,125,100,132,114,98,25,29,18,6,-8,-9,-13,-13,-15,-4,0,0,0,0,0,0,0,0,0,0,-9,0,0,0,0,0,0,4,4,4,4,11,4,4,-69,-69,-69,-69,-89,-87,-92,-47,-47,-47,-47,-47,-75,-8,-10,-10,-34,-34,-40,-34,-34,-31,-31,-31,-31,-17,-20]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Qc2 dxc4 5. Qxc4 Nf6 6. Bg5 b5 {D30: Queen's Gambit Declined: Systems without Nc3} (6... Qa5+ 7. Bd2 Qc7 8. Nc3 Nbd7 9. e4 a6 10. e5 b5 11. Qb3 b4 12. Na4 Nd5 13. Rc1 Be7 14. Bd3 {0-1 (62) Vidit,S (2703)-Shankland,S (2713) Biel 2019}) 7. Qc2 Bb7 8. e3 Nbd7 9. Nbd2 a6 $146 ({Predecessor:} 9... Rc8 10. a4 {½-½ (55) Yaksin,O (2396)-Sharafiev,A (2455) Moscow 2010}) 10. a4 Rc8 11. Be2 Be7 12. O-O O-O 13. Nb3 Qb6 (13... c5 $11) 14. Ne5 $16 {Threatens to win with Nxd7.} Rfe8 15. Bxf6 Nxf6 16. Bf3 c5 17. Bxb7 Qxb7 18. dxc5 ({White should try} 18. Nxc5 $16 Qb8 19. b4) 18... Qd5 $11 19. Nd3 Red8 $36 {[%mdl 2048] Black fights for an advantage.} 20. Rfd1 Qc4 21. Rac1 Qxc2 22. Rxc2 bxa4 23. Nd4 Ne4 {[%cal Re4c5]} 24. c6 Bf6 25. Rc4 Bxd4 26. exd4 Nd6 27. Rxa4 Rxc6 28. Kf1 h6 29. d5 exd5 30. Ne5 Rb6 31. Rxd5 Re8 32. Nd3 Ne4 {...Nc3! is the strong threat.} 33. g3 g5 34. Kg2 Rf6 35. h3 {[#]} (35. Ra3 $11) 35... Nxf2 $1 $15 {[%mdl 512]} 36. Ne5 {[#] And now Nd7 would win.} ({Not} 36. Nxf2 $2 Re2 $19) 36... Nd1 $1 {[%mdl 576] Deflection} 37. Rxd1 {Black must now prevent Rd5.} Rxe5 {[%mdl 4096] Endgame KRR-KRR} 38. Rd2 Re1 39. h4 Kg7 40. hxg5 hxg5 41. b4 Kg8 (41... Rb6 $17) 42. Rda2 Ree6 43. Rc2 Kh7 44. Kh3 Rd6 45. Ra5 Rb6 46. Rcc5 Rxb4 47. Rxg5 Kh6 48. Rg8 {Accuracy: White = 59%, Black = 63%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.11"]
[White "Stupak, Kirill"]
[Black "Jubin Jimmy"]
[Result "0-1"]
[ECO "E33"]
[WhiteElo "2506"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,46,31,40,22,13,17,20,0,21,12,19,25,69,67,82,80,94,94,94,94,92,92,91,84,94,94,92,88,81,67,80,72,77]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 Nc6 5. Qc2 d6 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3 Re8 9. g3 {E33: Nimzo-Indian: Classical: 4...Nc6} e5 10. d5 Nb8 {[%cal Bc6b8,Bb8d7,Bd7c5][%mdl 32]} 11. e4 $146 {The position is equal.} ({Predecessor:} 11. Bg2 c6 12. Nd2 cxd5 13. cxd5 Bg4 14. f3 Bd7 15. e4 a5 16. O-O Na6 {½-½ (64) Drozdovskij,Y (2562)-Ovetchkin,R (2534) playchess.com INT 2007}) 11... a5 12. b3 Nbd7 13. Nd2 b6 14. Bg2 Nc5 15. b4 axb4 16. axb4 Rxa1+ 17. Bxa1 Ncd7 18. O-O Bb7 19. Bb2 Qe7 20. Nb1 Ra8 21. Nc3 h6 22. h3 Ba6 23. Ra1 Qd8 {[%mdl 32768] Accuracy: White = 53%, Black = 24%. . Loss on time!?} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.12"]
[White "Karthik Venkataraman"]
[Black "Zia, Tahsin Tajwar"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2479"]
[BlackElo "2177"]
[Annotator "ChessBase"]
[PlyCount "67"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d3 {[%emt 0:04:41]} c5 {[%emt 0:00:21]} 2. Nf3 {[%emt 0:00:14]} Nc6 {[%emt 0:00:58]} 3. g3 {[%emt 0:00:07]} g6 {[%emt 0:00:18]} 4. Bg2 {[%emt 0:00:06]} Bg7 {[%emt 0:00:06]} 5. O-O {[%emt 0:00:06]} e6 {[%emt 0:01:08]} 6. c3 {[%emt 0:00:15]} Nge7 {[%emt 0:00:05]} 7. e4 {[%emt 0:00:05]} O-O {[%emt 0:00:32]} 8. Na3 {[%emt 0:00:05]} a6 {[%emt 0:00:25]} 9. Be3 {[%emt 0:00:41]} d6 {[%emt 0:00:32]} 10. Qd2 {[%emt 0:00:33]} Rb8 {[%emt 0:00:41]} 11. Nc2 {[%emt 0:00:46]} b5 {[%emt 0:00:48]} 12. Bh6 {[%emt 0:00:17]} b4 {[%emt 0:01:24]} 13. Bxg7 {[%emt 0:00:35]} Kxg7 {[%emt 0:00:02]} 14. Ne3 {[%emt 0:00:08]} e5 {[%emt 0:05:05]} 15. d4 {[%emt 0:00:20]} f6 {[%emt 0:05:28]} 16. Rfd1 {[%emt 0:00:35]} bxc3 {[%emt 0:03:05]} 17. bxc3 {[%emt 0:00:05]} cxd4 {[%emt 0:00:51]} 18. cxd4 {[%emt 0:00:07]} Qa5 {[%emt 0:00:30]} 19. Rac1 {[%emt 0:03:34]} Qxd2 {[%emt 0:06:46]} 20. Rxd2 {[%emt 0:00:05]} Nd8 {[%emt 0:05:11]} 21. Bf1 {[%emt 0:02:40]} Nf7 {[%emt 0:07:19]} 22. Rc7 {[%emt 0:02:07]} Re8 {[%emt 0:00:47]} 23. Bc4 {[%emt 0:05:50]} Bh3 {[%emt 0:04:28]} 24. Bb3 {[%emt 0:00:50]} a5 {[%emt 0:01:10]} 25. Ba4 {[%emt 0:03:49]} Rbc8 {[%emt 0:16:42]} 26. Rdc2 {[%emt 0:00:08]} f5 {[%emt 0:05:21]} 27. Bxe8 {[%emt 0:00:44]} Rxe8 {[%emt 0:00:02]} 28. dxe5 {[%emt 0:00:23]} fxe4 {[%emt 0:03:44]} 29. exd6 {[%emt 0:00:40]} exf3 {[%emt 0:02:47]} 30. dxe7 {[%emt 0:01:11]} Rb8 {[%emt 0:01:10]} 31. Rc1 {[%emt 0:00:43]} Kf6 {[%emt 0:00:30]} 32. Nd5+ {[%emt 0:00:08]} Ke5 {[%emt 0:01:00]} 33. Nf4 {[%emt 0:00:07]} Bf5 {[%emt 0:00:46]} 34. Re1+ {[%emt 0:00:21]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.13"]
[White "Ram, S. Krishnan"]
[Black "Vishnu Prasanna. V"]
[Result "0-1"]
[ECO "D91"]
[WhiteElo "2179"]
[BlackElo "2474"]
[Annotator "ChessBase"]
[PlyCount "48"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:14]} g6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:05]} d5 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:12]} Bg7 {[%emt 0:00:00]} 5. Bg5 {[%emt 0:00:12]} dxc4 {[%emt 0:00:14]} 6. e4 {[%emt 0:02:09]} Bg4 {[%emt 0:03:57]} 7. Bxc4 {[%emt 0:00:57]} Bxf3 {[%emt 0:00:58]} 8. gxf3 {[%emt 0:00:09]} Nbd7 {[%emt 0:02:20]} 9. e5 {[%emt 0:15:21]} Nh5 {[%emt 0:02:17]} 10. Nd5 {[%emt 0:01:04]} Nb6 {[%emt 0:12:39]} 11. Bxe7 {[%emt 0:07:08]} Qd7 {[%emt 0:01:09]} 12. Nxb6 {[%emt 0:01:07]} axb6 {[%emt 0:00:06]} 13. Bg5 {[%emt 0:00:09]} O-O {[%emt 0:00:10]} 14. Qd2 {[%emt 0:02:46]} c5 {[%emt 0:02:49]} 15. dxc5 {[%emt 1:05:57]} Qf5 16. cxb6 {[%emt 0:00:00]} Bxe5 {[%emt 0:05:35]} 17. h4 {[%emt 0:00:00]} Rfe8 {[%emt 0:02:39]} 18. Kf1 {[%emt 0:00:00]} Qxf3 {[%emt 0:02:52]} 19. Bd5 {[%emt 0:00:00]} Qf5 {[%emt 0:09:42]} 20. Bxb7 {[%emt 0:00:00]} Ng3+ {[%emt 0:01:55]} 21. Kg2 {[%emt 0:00:00]} Nxh1 {[%emt 0:01:23]} 22. Bxa8 {[%emt 0:00:00]} Qg4+ {[%emt 0:00:29]} 23. Kxh1 {[%emt 0:00:00]} Qh3+ {[%emt 0:00:06]} 24. Kg1 {[%emt 0:00:00]} Bh2+ {[%emt 0:00:07]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.14"]
[White "Vignesh N R"]
[Black "Deshmukh, Anup"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2472"]
[BlackElo "2163"]
[Annotator "ChessBase"]
[PlyCount "84"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:01:43]} d5 {[%emt 0:00:31]} 2. c4 {[%emt 0:00:12]} c6 {[%emt 0:00:12]} 3. Nf3 {[%emt 0:00:11]} Nf6 {[%emt 0:00:19]} 4. e3 {[%emt 0:00:51]} e6 {[%emt 0:01:14]} 5. b3 {[%emt 0:00:27]} Nbd7 {[%emt 0:00:30]} 6. Bd3 {[%emt 0:00:07]} Ne4 {[%emt 0:02:45]} 7. O-O {[%emt 0:01:00]} f5 {[%emt 0:00:14]} 8. Ne5 {[%emt 0:09:17]} Nxe5 {[%emt 0:03:45]} 9. dxe5 {[%emt 0:00:02]} Qc7 {[%emt 0:01:00]} 10. Bb2 {[%emt 0:00:27]} Be7 {[%emt 0:01:18]} 11. f3 {[%emt 0:05:16]} Nc5 {[%emt 0:00:49]} 12. Be2 {[%emt 0:01:36]} O-O {[%emt 0:00:41]} 13. Nd2 {[%emt 0:05:30]} a5 {[%emt 0:03:50]} 14. Qc2 {[%emt 0:00:20]} Bd7 {[%emt 0:01:47]} 15. f4 {[%emt 0:02:20]} b5 {[%emt 0:01:39]} 16. cxb5 {[%emt 0:01:56]} cxb5 {[%emt 0:00:14]} 17. Rfc1 {[%emt 0:00:20]} Qb7 {[%emt 0:01:49]} 18. Qd1 {[%emt 0:01:07]} Rfc8 {[%emt 0:03:08]} 19. Nf3 {[%emt 0:00:02]} b4 {[%emt 0:01:43]} 20. Bd4 {[%emt 0:09:58]} Ne4 {[%emt 0:02:29]} 21. Bd3 {[%emt 0:02:05]} Bb5 {[%emt 0:03:35]} 22. Qe2 {[%emt 0:00:29]} Bxd3 {[%emt 0:00:24]} 23. Qxd3 {[%emt 0:00:02]} h6 {[%emt 0:01:50]} 24. h3 {[%emt 0:06:07]} a4 {[%emt 0:07:06]} 25. Nd2 {[%emt 0:02:44]} Nxd2 {[%emt 0:21:05]} 26. Qxd2 {[%emt 0:00:02]} Qb5 {[%emt 0:01:32]} 27. Qd1 {[%emt 0:00:10]} a3 {[%emt 0:02:58]} 28. Rc2 {[%emt 0:01:49]} Qb7 {[%emt 0:04:01]} 29. Rac1 {[%emt 0:00:07]} g6 {[%emt 0:05:16]} 30. g4 {[%emt 0:00:15]} Kh7 {[%emt 0:00:49]} 31. gxf5 {[%emt 0:04:07]} gxf5 {[%emt 0:00:48]} 32. Qh5 {[%emt 0:00:08]} Rg8+ {[%emt 0:00:51]} 33. Kh2 {[%emt 0:00:54]} Rg7 {[%emt 0:00:15]} 34. Qe2 {[%emt 0:08:22]} Rag8 {[%emt 0:04:23]} 35. Rc7 {[%emt 0:00:07]} Qb8 {[%emt 0:00:59]} 36. R1c6 {[%emt 0:03:27]} Qb5 {[%emt 0:01:17]} 37. Rc2 {[%emt 0:03:05]} Qe8 {[%emt 0:00:19]} 38. Rc1 {[%emt 0:16:37]} Rg3 {[%emt 0:08:31]} 39. Bc5 {[%emt 0:01:09]} Qg6 {[%emt 0:01:43]} 40. Rxe7+ {[%emt 0:10:10]} Kh8 {[%emt 0:00:10]} 41. Qf1 {[%emt 0:00:28]} Rg2+ {[%emt 0:00:31]} 42. Kh1 {[%emt 0:00:01]} Qg3 {[%emt 0:12:40]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.15"]
[White "Masango, Spencer"]
[Black "Taher, Yoseph Theolifus"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "2173"]
[BlackElo "2462"]
[Annotator "ChessBase"]
[PlyCount "88"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:00]} g6 {[%emt 0:00:00]} 2. e4 {[%emt 0:02:57]} c5 {[%emt 0:00:36]} 3. Bc4 {[%emt 0:02:14]} Bg7 {[%emt 0:00:31]} 4. O-O {[%emt 0:00:47]} Nc6 {[%emt 0:00:19]} 5. Re1 {[%emt 0:01:11]} Nf6 {[%emt 0:04:42]} 6. e5 {[%emt 0:07:37]} Ng4 {[%emt 0:06:02]} 7. Bxf7+ {[%emt 0:02:47]} Kxf7 {[%emt 0:00:02]} 8. Ng5+ {[%emt 0:00:09]} Kg8 {[%emt 0:02:42]} 9. Qxg4 {[%emt 0:00:14]} Nxe5 {[%emt 0:00:10]} 10. Qf4 {[%emt 0:12:02]} Qf8 {[%emt 0:02:13]} 11. d4 {[%emt 0:02:06]} Qxf4 {[%emt 0:01:33]} 12. Bxf4 {[%emt 0:00:06]} Nc6 {[%emt 0:00:52]} 13. Nc3 {[%emt 0:06:20]} cxd4 {[%emt 0:03:20]} 14. Nd5 {[%emt 0:06:22]} e5 {[%emt 0:00:20]} 15. Bg3 {[%emt 0:01:15]} d6 {[%emt 0:01:46]} 16. c3 {[%emt 0:03:20]} Bf5 {[%emt 0:10:00]} 17. cxd4 {[%emt 0:05:24]} Nxd4 {[%emt 0:00:24]} 18. Rac1 {[%emt 0:00:55]} h6 {[%emt 0:02:28]} 19. Ne4 {[%emt 0:02:15]} Bxe4 {[%emt 0:01:09]} 20. Rxe4 {[%emt 0:00:14]} Kh7 {[%emt 0:01:07]} 21. Rc7 {[%emt 0:02:10]} Rhc8 {[%emt 0:00:21]} 22. f4 {[%emt 0:06:51]} Rxc7 {[%emt 0:00:09]} 23. Nxc7 {[%emt 0:00:07]} Rc8 {[%emt 0:00:01]} 24. fxe5 {[%emt 0:02:53]} dxe5 {[%emt 0:00:07]} 25. Nd5 {[%emt 0:00:32]} Rc1+ {[%emt 0:02:00]} 26. Re1 {[%emt 0:00:46]} Ne2+ {[%emt 0:02:00]} 27. Kf2 {[%emt 0:00:27]} Rxe1 {[%emt 0:00:04]} 28. Kxe1 {[%emt 0:00:13]} Nxg3 {[%emt 0:00:02]} 29. hxg3 {[%emt 0:00:12]} e4 {[%emt 0:00:11]} 30. b3 {[%emt 0:02:25]} Bd4 {[%emt 0:00:24]} 31. Ke2 {[%emt 0:02:21]} Kg7 {[%emt 0:00:31]} 32. g4 {[%emt 0:10:08]} Kf7 {[%emt 0:00:04]} 33. a3 {[%emt 0:05:27]} Ke6 {[%emt 0:00:23]} 34. Nf4+ {[%emt 0:00:09]} Kf6 {[%emt 0:00:08]} 35. a4 {[%emt 0:07:33]} g5 {[%emt 0:01:31]} 36. Nh5+ {[%emt 0:00:33]} Ke5 {[%emt 0:00:51]} 37. Ng3 {[%emt 0:00:31]} Bc5 {[%emt 0:00:11]} 38. Nf5 {[%emt 0:04:08]} h5 {[%emt 0:00:05]} 39. g3 {[%emt 0:02:18]} a5 {[%emt 0:01:22]} 40. Ke1 {[%emt 0:01:00]} hxg4 {[%emt 0:00:20]} 41. Nh6 {[%emt 0:00:29]} Kd4 {[%emt 0:00:03]} 42. Nxg4 {[%emt 0:00:29]} Bd6 {[%emt 0:00:15]} 43. Ke2 {[%emt 0:00:34]} Bxg3 {[%emt 0:00:07]} 44. Ne3 {[%emt 0:00:31]} Bc7 {[%emt 0:00:04]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.16"]
[White "Neverov, Valeriy"]
[Black "Kiran, Manisha Mohanty"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "2460"]
[BlackElo "2133"]
[Annotator "ChessBase"]
[PlyCount "108"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:01:48]} c5 {[%emt 0:08:40]} 2. g3 {[%emt 0:03:29]} g6 {[%emt 0:00:30]} 3. Bg2 {[%emt 0:00:12]} Bg7 {[%emt 0:00:11]} 4. Nc3 {[%emt 0:00:31]} Nc6 {[%emt 0:00:06]} 5. Nf3 {[%emt 0:01:27]} Nf6 {[%emt 0:00:10]} 6. O-O {[%emt 0:02:13]} O-O {[%emt 0:00:05]} 7. d4 {[%emt 0:03:54]} cxd4 {[%emt 0:00:11]} 8. Nxd4 {[%emt 0:00:04]} Qa5 {[%emt 0:00:13]} 9. e3 {[%emt 0:05:30]} d6 {[%emt 0:04:21]} 10. h3 {[%emt 0:13:31]} Bd7 {[%emt 0:06:47]} 11. Nde2 {[%emt 0:14:45]} Qh5 {[%emt 0:02:17]} 12. Nf4 {[%emt 0:02:21]} Qxd1 {[%emt 0:00:08]} 13. Rxd1 {[%emt 0:00:02]} Rac8 {[%emt 0:01:23]} 14. Bd2 {[%emt 0:01:15]} Rfe8 {[%emt 0:00:36]} 15. b3 {[%emt 0:03:10]} b6 {[%emt 0:00:45]} 16. Rac1 {[%emt 0:03:12]} Ne5 {[%emt 0:01:09]} 17. Be1 {[%emt 0:04:03]} Bc6 {[%emt 0:04:14]} 18. Bxc6 {[%emt 0:04:25]} Rxc6 {[%emt 0:00:38]} 19. Kg2 {[%emt 0:00:06]} Nfd7 {[%emt 0:10:56]} 20. Nfd5 {[%emt 0:02:04]} Rcc8 {[%emt 0:02:57]} 21. Nb5 {[%emt 0:07:11]} Nc6 {[%emt 0:00:35]} 22. f3 {[%emt 0:00:15]} Kf8 {[%emt 0:00:31]} 23. Bf2 {[%emt 0:00:28]} Red8 {[%emt 0:04:05]} 24. e4 {[%emt 0:00:15]} Nc5 {[%emt 0:04:37]} 25. Be3 {[%emt 0:05:25]} h6 {[%emt 0:01:47]} 26. Rd2 {[%emt 0:02:52]} g5 {[%emt 0:01:35]} 27. Kf2 {[%emt 0:04:02]} Rd7 {[%emt 0:02:14]} 28. Ke2 {[%emt 0:00:35]} e6 {[%emt 0:02:39]} 29. Ndc3 {[%emt 0:01:16]} Be5 {[%emt 0:00:12]} 30. f4 {[%emt 0:02:48]} gxf4 {[%emt 0:05:51]} 31. gxf4 {[%emt 0:00:07]} Bxc3 {[%emt 0:00:04]} 32. Nxc3 {[%emt 0:00:14]} f5 {[%emt 0:00:25]} 33. exf5 {[%emt 0:04:17]} exf5 {[%emt 0:00:02]} 34. Rcd1 {[%emt 0:00:54]} Re8 {[%emt 0:01:53]} 35. Rxd6 {[%emt 0:02:17]} Rxd6 {[%emt 0:03:29]} 36. Rxd6 {[%emt 0:00:04]} Re6 {[%emt 0:00:10]} 37. Rxe6 {[%emt 0:03:08]} Nxe6 {[%emt 0:00:03]} 38. Nd5 {[%emt 0:00:11]} Kf7 {[%emt 0:00:37]} 39. Kd3 {[%emt 0:00:12]} Kg6 {[%emt 0:00:16]} 40. b4 {[%emt 0:02:27]} Kh5 {[%emt 0:00:12]} 41. b5 {[%emt 0:01:08]} Ncd8 {[%emt 0:03:56]} 42. Ne7 {[%emt 0:00:35]} Ng7 {[%emt 0:00:07]} 43. c5 {[%emt 0:01:16]} bxc5 {[%emt 0:00:07]} 44. Bxc5 {[%emt 0:00:05]} Kh4 {[%emt 0:00:15]} 45. Bxa7 {[%emt 0:01:03]} Kxh3 {[%emt 0:00:07]} 46. Bd4 {[%emt 0:00:29]} Nge6 {[%emt 0:00:11]} 47. Nxf5 {[%emt 0:00:28]} h5 {[%emt 0:00:07]} 48. Ke4 {[%emt 0:00:50]} Kg4 {[%emt 0:00:09]} 49. Ne3+ {[%emt 0:00:58]} Kg3 {[%emt 0:00:09]} 50. Be5 {[%emt 0:00:26]} Nc5+ {[%emt 0:01:05]} 51. Kd5 {[%emt 0:00:16]} Nd7 {[%emt 0:00:15]} 52. Bc7 {[%emt 0:00:37]} Kf3 {[%emt 0:01:56]} 53. Bxd8 {[%emt 0:00:22]} Kxe3 {[%emt 0:00:20]} 54. Kd6 {[%emt 0:00:46]} Kd4 {[%emt 0:30:42] Ke5+ Kd5 Ke4+ Nb8+} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.17"]
[White "Lugovskoy, Maxim"]
[Black "Bakshi, Rutuja"]
[Result "1/2-1/2"]
[ECO "C15"]
[WhiteElo "2453"]
[BlackElo "2118"]
[Annotator "ChessBase"]
[PlyCount "60"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:04:06]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:19]} d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:33]} Bb4 {[%emt 0:00:00]} 4. a3 {[%emt 0:01:17]} Bxc3+ {[%emt 0:00:00]} 5. bxc3 {[%emt 0:00:05]} dxe4 {[%emt 0:00:12]} 6. Qg4 {[%emt 0:00:04]} Nf6 {[%emt 0:00:29]} 7. Qxg7 {[%emt 0:00:05]} Rg8 {[%emt 0:00:07]} 8. Qh6 {[%emt 0:00:03]} Nbd7 {[%emt 0:00:26]} 9. Ne2 {[%emt 0:00:20]} b6 {[%emt 0:00:47]} 10. g3 {[%emt 0:00:59]} Bb7 {[%emt 0:03:33]} 11. Bg2 {[%emt 0:00:06]} Qe7 {[%emt 0:02:21]} 12. O-O {[%emt 0:00:09]} O-O-O {[%emt 0:01:28]} 13. a4 {[%emt 0:00:04]} a5 {[%emt 0:05:28]} 14. Ba3 {[%emt 0:00:15]} Qe8 {[%emt 0:01:04]} 15. Rfe1 {[%emt 0:05:24]} Rg6 {[%emt 0:09:56]} 16. Qe3 {[%emt 0:06:34]} e5 {[%emt 0:04:06]} 17. Rad1 {[%emt 0:01:06]} Ng4 {[%emt 0:07:04]} 18. Qc1 {[%emt 0:02:08]} Rf6 {[%emt 0:06:15]} 19. Rf1 {[%emt 0:04:24]} exd4 {[%emt 0:06:33]} 20. Nxd4 {[%emt 0:05:53]} e3 {[%emt 0:10:42]} 21. Bxb7+ {[%emt 0:01:25]} Kxb7 {[%emt 0:02:24]} 22. fxe3 {[%emt 0:00:22]} Qe4 {[%emt 0:04:26]} 23. Qd2 {[%emt 0:02:03]} c5 {[%emt 0:06:42]} 24. Nb5 {[%emt 0:16:42]} Nde5 {[%emt 0:01:22]} 25. Qxd8 {[%emt 0:00:15]} Qxe3+ {[%emt 0:00:05]} 26. Kh1 {[%emt 0:00:03]} Qe4+ {[%emt 0:00:27]} 27. Kg1 {[%emt 0:00:04]} Qe3+ {[%emt 0:00:10]} 28. Kh1 {[%emt 0:00:06]} Qe4+ {[%emt 0:00:17]} 29. Kg1 {[%emt 0:00:05]} Qe3+ {[%emt 0:00:06]} 30. Kh1 {[%emt 0:00:03]} Qe4+ {[%emt 0:00:07]} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.18"]
[White "Lakshmi Narayanan M V"]
[Black "Mitrabha, Guha"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2162"]
[BlackElo "2448"]
[Annotator "NA"]
[PlyCount "81"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:06:28]} c6 {[%emt 0:00:18]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:06]} 3. Nd2 {[%emt 0:00:14]} dxe4 {[%emt 0:00:05]} 4. Nxe4 {[%emt 0:00:48]} Nf6 {[%emt 0:01:01]} 5. Nxf6+ {[%emt 0:01:01]} exf6 {[%emt 0:00:04]} 6. c3 {[%emt 0:01:37]} Bd6 {[%emt 0:00:08]} 7. Bd3 {[%emt 0:01:14]} O-O {[%emt 0:00:11]} 8. Ne2 {[%emt 0:00:39]} Re8 {[%emt 0:00:00]} 9. Qc2 {[%emt 0:00:29]} h5 {[%emt 0:00:00]} 10. Be3 {[%emt 0:03:10]} Nd7 {[%emt 0:00:00]} 11. O-O-O {[%emt 0:00:49]} Nf8 {[%emt 0:00:00]} 12. Kb1 {[%emt 0:01:46]} Be6 {[%emt 0:00:00]} 13. c4 {[%emt 0:04:00]} Rc8 {[%emt 0:00:39]} 14. Nc3 {[%emt 0:05:45]} Bb4 $11 {[%emt 0:07:05]} 15. Ne4 {[%emt 0:08:51]} Qa5 {[%emt 0:08:23]} 16. b3 {[%emt 0:05:30]} Rcd8 {[%emt 0:07:17]} 17. h3 {[%emt 0:04:19]} h4 {[%emt 0:09:06]} 18. g4 {[%emt 0:07:31]} b5 {[%emt 0:17:58]} 19. c5 {[%emt 0:01:28]} Bd5 {[%emt 0:00:22]} 20. Rhg1 {[%emt 0:02:44]} Ne6 {[%emt 0:01:10]} 21. g5 {[%emt 0:01:57]} fxg5 {[%emt 0:08:36]} 22. Nxg5 {[%emt 0:03:03]} Qc7 {[%emt 0:01:33]} 23. Nxe6 {[%emt 0:12:12]} Rxe6 {[%emt 0:00:30]} 24. Qe2 {[%emt 0:04:12]} g6 {[%emt 0:26:27]} 25. Qg4 {[%emt 0:02:34]} Qd7 {[%emt 0:03:36]} 26. Qxh4 {[%emt 0:01:20]} Rde8 {[%emt 0:00:46]} 27. Bg5 {[%emt 0:01:56]} Bf3 {[%emt 0:01:10]} 28. Bf6 {[%emt 0:01:21]} Rxf6 {[%emt 0:00:11]} 29. Qxf6 {[%emt 0:00:23]} Bh5 {[%emt 0:00:18]} 30. d5 {[%emt 0:08:44]} cxd5 {[%emt 0:02:25]} 31. Qh4 {[%emt 0:01:31]} Bxd1 {[%emt 0:01:28]} 32. Bxg6 {[%emt 0:00:29]} Bg4 {[%emt 0:02:11]} 33. Rxg4 {[%emt 0:02:36]} Kf8 {[%emt 0:01:40]} 34. Rxb4 {[%emt 0:02:40]} fxg6 {[%emt 0:01:09]} 35. Qf6+ {[%emt 0:00:47]} Qf7 {[%emt 0:00:02]} 36. Qxf7+ {[%emt 0:01:14]} Kxf7 {[%emt 0:00:02]} 37. Rxb5 {[%emt 0:00:02]} Re1+ {[%emt 0:00:02]} 38. Kc2 {[%emt 0:00:19]} Re2+ {[%emt 0:00:02]} 39. Kd3 {[%emt 0:00:21]} Rxa2 {[%emt 0:00:05]} 40. c6 {[%emt 0:00:50]} Ke6 {[%emt 0:00:02]} 41. Rc5 {[%emt 0:00:20]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.19"]
[White "Priyanka, Kumari"]
[Black "Hesham, Abdelrahman"]
[Result "1-0"]
[ECO "C76"]
[WhiteElo "1874"]
[BlackElo "2429"]
[Annotator "NA"]
[PlyCount "71"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 1:30:30]} e5 {[%emt 1:30:30]} 2. Nf3 {[%emt 0:00:30]} Nc6 {[%emt 0:00:30]} 3. Bb5 {[%emt 0:00:30]} a6 {[%emt 0:00:30]} 4. Ba4 {[%emt 0:00:30]} g6 {[%emt 0:00:30]} 5. c3 {[%emt 0:00:30]} d6 6. d4 {[%emt 0:00:30]} Bd7 {[%emt 0:01:00]} 7. O-O {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 8. Bg5 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 9. dxe5 {[%emt 0:00:30]} dxe5 {[%emt 0:00:30]} 10. Nbd2 {[%emt 0:00:30]} h6 {[%emt 0:00:30]} 11. Be3 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 12. b4 {[%emt 0:00:30]} Ng4 $14 {[%emt 0:00:30]} 13. Bc5 {[%emt 0:00:30]} Qf6 {[%emt 0:00:30]} 14. h3 {[%emt 0:00:30]} h5 {[%emt 0:00:30]} 15. Re1 {[%emt 0:00:30]} b6 {[%emt 0:00:30]} 16. Be3 {[%emt 0:00:30]} Nxe3 {[%emt 0:00:30]} 17. Rxe3 {[%emt 0:00:30]} b5 {[%emt 0:00:30]} 18. Bb3 {[%emt 0:00:30]} g5 {[%emt 0:00:30]} 19. Nh2 {[%emt 0:00:30]} g4 {[%emt 0:00:30]} 20. hxg4 {[%emt 0:00:30]} hxg4 {[%emt 0:00:30]} 21. Nxg4 {[%emt 0:00:30]} Qh4 {[%emt 0:00:30]} 22. Rh3 {[%emt 0:00:30]} Qxg4 {[%emt 0:00:30]} 23. Qxg4 {[%emt 0:00:30]} Bxg4 {[%emt 0:00:30]} 24. Rg3 {[%emt 0:00:30]} Bh6 {[%emt 0:00:30]} 25. Rxg4 {[%emt 0:00:30]} Bxd2 {[%emt 0:00:30]} 26. Bd5 {[%emt 0:00:30]} Kd7 {[%emt 0:00:30]} 27. Rd1 {[%emt 0:00:30]} Bh6 {[%emt 0:00:30]} 28. Bxf7+ {[%emt 0:00:30]} Ke7 {[%emt 0:00:30]} 29. Rg6 {[%emt 0:00:30]} Nd8 {[%emt 0:00:30]} 30. Bd5 {[%emt 0:00:30]} Ra7 {[%emt 0:00:30]} 31. Rd3 {[%emt 0:00:30]} Bf8 {[%emt 0:00:30]} 32. Rg5 {[%emt 0:00:30]} c6 {[%emt 0:00:30]} 33. Rxe5+ {[%emt 0:00:30]} Kd6 {[%emt 0:00:30]} 34. Re8 {[%emt 0:00:30]} Kc7 {[%emt 0:00:30]} 35. Bb3 {[%emt 0:00:30]} Bg7 {[%emt 0:00:30]} 36. Re7+ {[%emt 0:00:30]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.19"]
[Round "3.20"]
[White "Das, Sayantan"]
[Black "Anadkat Kartavya"]
[Result "*"]
[WhiteElo "2424"]
[BlackElo "2082"]
[Annotator "NA"]
[PlyCount "1"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c3 {[%emt 0:00:00]} *

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.1"]
[White "Karthikeyan, P.."]
[Black "Ponkratov, Pavel"]
[Result "1/2-1/2"]
[ECO "A61"]
[WhiteElo "2416"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,104,35,39,42,30,28,33,87,73,77,75,102,94,110,58,75,88,90,68,79,64,113,112,105,105,107,95,104,83,94,43,50,53,71,35,35,22,27,15,18,13,21,0,4,8,69,12,12,12,12,12,30,0,16,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 g6 6. Nc3 d6 7. Bf4 a6 8. a4 Bg7 9. h3 O-O 10. e3 Ne8 {A61: Modern Benoni: Nf3 without early e4} 11. Be2 Nd7 12. O-O (12. a5 Qe7 13. O-O Ne5 14. Bxe5 Bxe5 15. Nxe5 Qxe5 16. Qd2 Bd7 17. f4 Qg7 18. Bc4 {½-½ (35) Lysyj,I (2596)-Indjic,A (2628) Mali Losinj 2019}) 12... h6 (12... Ne5 $14) 13. e4 $16 Qe7 14. Qd2 $146 ({Predecessor:} 14. Nd2 Ne5 15. Nc4 Nxc4 16. Bxc4 Bxc3 17. bxc3 Qxe4 18. Bxh6 Qxc4 19. Bxf8 Kxf8 {0-1 (84) Jarmula,L (2444)-Molenda,M (2421) Lublin 2017}) 14... Kh7 15. Rfe1 b6 16. Bf1 (16. Bg3 $16) 16... g5 17. Bg3 Ne5 18. Nxe5 (18. Bxe5 {is interesting.} dxe5 19. Qe3 Qc7 20. Nd2 Nd6 21. Nc4) 18... Bxe5 19. Bxe5 Qxe5 20. Nd1 Rb8 21. Ne3 b5 22. axb5 axb5 23. Ra7 Nf6 24. b4 ({White should try} 24. Qc3 $16) 24... Kg8 25. f3 Re8 26. Rc1 c4 27. Nc2 Re7 28. Rca1 Rxa7 29. Rxa7 Bd7 30. Nd4 Rc8 31. Qc3 Be8 (31... h5 $11) 32. Ra6 (32. Ne2 $14) 32... Nh5 $11 33. Ne2 Nf4 {[#] White must now prevent ...Nxe2+.} 34. Qxe5 dxe5 35. Nc1 (35. Rxh6 $2 Nxe2+ 36. Bxe2 c3 $17) 35... h5 36. g3 Ng6 37. h4 gxh4 38. Bh3 Rd8 39. gxh4 Nxh4 40. Kf2 Ng6 41. Ne2 Kf8 42. Ke3 h4 43. Ra7 Rd6 44. Ra8 Ke7 45. Ra7+ Kf6 46. f4 {The position is equal.} Rd8 47. Ra6+ Kg7 48. fxe5 Nxe5 49. Nd4 Nd3 50. Nf5+ Kg8 51. Ne7+ Kg7 ({And not} 51... Kf8 52. Nc6 $16) 52. Nf5+ Kg8 {Accuracy: White = 51%, Black = 68%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.2"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Nitin, S.."]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2606"]
[BlackElo "2347"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,92,45,41,55,58,70,17,88,0,0,0,-4,0,21,10,14,11,2,14,34,40,59,58,66,68,101,100,94,79,90,89,134,127,133,119,156,65,74,36,33,36,53,0,24,36,72,17,56,57,54,62,62,62,67,66,66,66,61,49,90,88,88,88,88,88,88,88,200,200,474,249,724,634,874,870,850,830,724]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6 6. O-O Bg7 7. Nf3 d6 8. c4 Nf6 9. Nc3 O-O {B42: Sicilian: Kan Variation: 5 Bd3} 10. h3 Nc6 11. Bf4 (11. Be2 $14) 11... Nh5 (11... d5 $11) 12. Bh2 $146 ({White should play} 12. Be3 $16) ({Predecessor:} 12. Bg5 Qb6 13. Rc1 Qc7 14. Qb3 Nd4 15. Qd1 h6 16. Be3 Nxf3+ 17. Qxf3 {1-0 (37) Narciso Dublan,M (2534)-Lopez Martinez,J (2508) Catalunya 2012}) 12... Bxc3 $11 13. bxc3 e5 14. c5 Nf4 15. Bxf4 exf4 16. cxd6 Qxd6 17. Bc4 $36 {[%mdl 2048] White has good play.} Qe7 18. Bd5 Ne5 19. c4 {[%cal Bc3c4,Bc4c5,Bc5c6][%mdl 32]} Rb8 20. Rb1 b5 {[%cal Bb7b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 21. Nxe5 Qxe5 22. c5 Be6 23. Qf3 b4 24. c6 Rfc8 25. Rbc1 a5 26. Qb3 (26. Rfd1 $16) 26... Rb6 $1 $14 {[%cal Rb6c6]} 27. Qd3 a4 28. Rc4 b3 29. a3 ({White should try} 29. axb3 $1 $14 axb3 30. Rb1) 29... b2 {[#] Threatens to win with ...Rb3.} 30. Rb1 f3 31. g3 (31. Qd4 $16 Qg5 32. g3) 31... Rb3 32. Qd4 $1 {[%cal Rd4e5]} Qxd4 33. Rxd4 Rxa3 {[#] ...Ra1! is the strong threat.} 34. Rxb2 Ra1+ 35. Kh2 a3 36. Rbd2 Rc1 37. Ra4 Rc3 38. g4 Rd8 39. Ra6 Kg7 40. Kg3 h5 41. g5 h4+ (41... Rc5 $16) 42. Kxh4 $18 Rh8+ 43. Kg3 {Hoping for Bxe6.} Rxh3+ $2 (43... Rd8 44. h4 Kf8) 44. Kf4 {White is clearly winning.} Bxd5 45. exd5 Rh4+ 46. Ke5 Rb4 {Accuracy: White = 68%, Black = 36%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.3"]
[White "Mchedlishvili, Mikheil"]
[Black "Harshavardhan G B"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2578"]
[BlackElo "2343"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,86,23,23,36,36,40,41,38,20,20,22,12,29,50,56,65,35,55,31,32,46,62,49,48,54,47,51,75,11,36,21,19,27,17,10,119,104,124,131,132,0,115,113,108,103,97,85,83,76,178,0,186,-54,-60,-72,-64,-78,-7,-74,-84,-212,-162,-206,-216,-295,-284,-792,-827,-799,-791,-29975,-29976,-29977,-29978,-29997,-29998]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 d6 7. Qe2 Nge7 {C45: Scotch Game} (7... Nf6 8. Be3 Be6 9. O-O-O Qe7 10. f3 O-O-O 11. Bxb6 axb6 12. Qe3 Bxb3 13. axb3 d5 14. Qg5 dxe4 15. Bc4 {1-0 (42) Chigaev,M (2631)-Wang,H (2756) Moscow 2019}) 8. Be3 O-O 9. O-O-O f5 {White is slightly better.} 10. Bxb6 axb6 11. f4 fxe4 12. Qxe4 Bf5 13. Qf3 Qd7 {And now ...Bg4 would win.} 14. Be2 Bg6 $146 ({Predecessor:} 14... b5 15. g4 {0-1 (40) Stubbs,M (2072)-Zhuravlev,K ICCF email 2011}) 15. g4 Nb4 $1 {[%cal Rb4a2]} 16. a3 Bxc2 17. Bc4+ Kh8 $1 18. axb4 Bxd1 19. Rxd1 (19. Nxd1 Nc6 $17) 19... Nc6 20. Bb5 (20. f5 $16) 20... Qf7 21. Nd5 Ne7 $1 {[%cal Re7d5]} 22. Nxe7 (22. Nxc7 Rac8 $17) 22... Qxe7 23. Kb1 c6 (23... d5 $1 $11) 24. Bd3 $16 d5 25. Qh3 {[%csl Gd3][%cal Rh3h7]} h6 26. Qh5 (26. g5 $1 $16) 26... Rxf4 (26... Qd6 $11 {remains equal.}) 27. Qg6 {[%csl Gd3][%cal Rg6h7]} Kg8 28. Qh7+ {[%mdl 1024] White has strong compensation.} Kf7 29. Bg6+ $1 Kf6 {[#]} 30. Bf5 $1 Qe5 (30... Kf7 $16) 31. Qg6+ $18 Ke7 32. b5 $2 (32. Nc1 $18 {Nd3! is the strong threat.} Rxf5 33. gxf5) 32... Rb4 $15 {[%mdl 64] Double Attack, Discovered Attack} 33. Bc2 Rxb5 $40 {[%mdl 128] White needs to defend precisely.} 34. Qd3 Kd6 (34... Kd7 $17 35. Qd2 Re8) 35. Rf1 (35. Qg6+ $1 $11 {keeps the balance.} Ke7 36. Qd3) 35... Re8 $17 36. Rf7 (36. Nd4 $17 {might work better.} Rb4 37. Qg6+ Kc7 38. Rf7+ Re7 39. Rxe7+ Qxe7 40. Ne6+ Kb8 41. Bf5) 36... Re7 ({Wrong is} 36... Qxh2 $2 37. Qg6+ Re6 38. Qxg7 $18) 37. Rf8 Rb4 ({Stronger than} 37... Qxh2 38. Qg6+ Kc7 39. Qf5 $11) 38. Qg6+ Kc7 39. Rf5 $2 (39. Rf7) 39... Qe1+ $19 40. Nc1 Qc3 {[%csl Gb4][%cal Rc3b2]} ({Not} 40... Rc4 41. Rf7 $17) 41. b3 {[#]} Re1 $1 {Black mates.} 42. Rf7+ Kb8 43. Qxg7 Rxb3+ $1 {[%mdl 64] Pin. Accuracy: White = 39%, Black = 51%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.4"]
[White "Bogdanovich, Stanislav"]
[Black "Saravana, Krishnan P."]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2562"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "203"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,203,33,30,19,40,31,31,26,26,25,25,29,26,24,31,27,23,17,29,13,19,19,18,14,20,17,47,37,33,24,47,46,43,42,65,49,64,62,59,56,67,18,13,0,32,17,23,0,39,-74,-76,-76,-77,-75,-72,-76,0,0,0,0,0,0,14,28,43,33,61,20,47,27,37,40,63,0,5,-96,-101,-94,-89,-90,-97,-85,-91,-166,-124,-94,-102,-375,-375,-363,-315,-321,-172,-177,0,-240,-159,-215,-240,-347,-143,-157,0,0,0,-297,0,0,0,-274,-287,-275,-272,-323,-319,-385,-359,-384,-320,-315,0,-337,0,-385,-256,-273,-243,-241,-86,-87,-86,-86,-85,-85,-85,-85,-85,-85,-30,-85,-86,-137,-95,-92,-97,-98,-26,-27,-12,-12,-12,-12,-9,-31,-12,-16,-23,-29,0,0,0,-35,0,0,0,0,0,0,0,0,0,0,0,-167,0,0,0,0,0,0,12846,12847,12851,27999,12851,12851,12851,12851,12851,27999,12851,27999,12851,27999,29995,27999]} 1. e4 e6 2. d4 d5 3. Nd2 h6 (3... c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd8 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 Be7 11. c3 O-O 12. Qf3 Qc7 {½-½ (12) Guseinov,G (2666)-Nepomniachtchi,I (2767) Moscow 2019}) 4. c3 c5 5. exd5 exd5 6. Ngf3 {C03: French Tarrasch: Unusual Black 3rd moves} Nf6 7. Bb5+ Bd7 8. Qe2+ {White is slightly better.} Be7 9. dxc5 O-O 10. Nb3 Re8 11. Be3 a6 $146 12. Bd3 Ba4 13. Nfd4 Nbd7 14. O-O Nxc5 15. Nxc5 Bxc5 16. Qf3 Bd7 17. Rfe1 Bd6 18. Nf5 Bxf5 19. Bxf5 Be5 20. Rad1 Qc7 21. g3 Rad8 22. Kg2 Qc6 23. Bb1 Rd6 24. a3 Qc4 25. Qf5 Rde6 26. Kg1 Qb3 27. Qc2 Qc4 28. Re2 Qg4 29. Red2 (29. Kg2 $14 {stays ahead.}) 29... g6 $1 $17 30. Qd3 Qh5 $1 31. Qf1 Ng4 $1 {[%csl Gg4][%cal Rh5h2]} 32. Qg2 Nxe3 (32... Bc7 $1 $17 {[%cal Rc7b6]} 33. Rf1 (33. Rxd5 g5 $17) 33... Nxe3 34. fxe3 Rxe3 35. Rxd5 Qg4) 33. fxe3 $11 Qg5 34. Re2 Bb8 35. Rxd5 Qe7 36. e4 Ba7+ 37. Kh1 Re5 38. Red2 Qg5 39. Rxe5 Rxe5 40. Rd1 Qe3 41. Qf1 (41. Rf1 $14) 41... Re6 42. Qd3 {[#]} (42. Bd3 $11) 42... Rd6 $1 $17 {[%cal Rd6d3][%mdl 512]} 43. Qf1 (43. Qxd6 Qf3#) 43... Qf2 {Threatens to win with ...Rd2.} 44. Rc1 Qxb2 45. Rc2 Qb6 $40 {[%mdl 128] Black wants a kill.} (45... Qxa3 $6 46. Ba2 $1 $11 {[%mdl 512]}) 46. Ba2 (46. Re2 $17) 46... Rf6 $19 47. Qe1 Qb5 48. Kg2 $2 {[%mdl 8192]} (48. Qe2 $17 {was forced.}) 48... Qd3 49. Rd2 Qf3+ 50. Kh3 Qh5+ 51. Kg2 Qf3+ (51... g5 $142 $1 {( -> ...Qf3+)} 52. Qe2 g4) 52. Kh3 Kg7 53. Qe2 (53. Bd5 $17 {might work better.}) 53... Qxc3 54. Rd7 (54. Qd1 {was worth a try.}) 54... Qc8 (54... Qxa3 55. Rxb7 Qc5 56. Bd5 $15) (54... h5 $1 $19 55. Qd1 Qb2) 55. Qg4 $17 Qc2 $2 {[#]} (55... Qc6 $17 56. Qd1 Qxe4) 56. Bxf7 $1 $11 {[%mdl 512]} Rxf7 57. Rd6 $2 {[%mdl 8192]} (57. Rxf7+ $11 Kxf7 58. Qd7+ {[%mdl 64] Double Attack} Kg8 59. Qe8+ Kh7 60. Qf7+ Kh8 61. Qf6+ Kh7 62. Qf7+ Kh8 63. Qf6+ Kh7 64. Qf7+) 57... Rf6 $2 (57... Qc7 $1 $19 {[%cal Rc7d6]} 58. Qxg6+ Kh8) 58. Qd7+ Rf7 {[#]} 59. Qe6 $2 {[%mdl 8192]} (59. Qg4 $1 $11 {[%mdl 512]} Qc7 60. Qxg6+ Kh8 61. a4) 59... Qc7 $1 $19 60. Qxg6+ Kh8 61. e5 Bc5 62. Rd5 {intending Rxc5!} Rg7 63. Qf5 Be7 64. Rd7 Qc5 $2 (64... Qc8 $19 65. a4 b5 66. axb5 axb5) 65. Qe6 $2 {[%mdl 8192]} (65. Rxb7 $11 Bd8 66. Rb8 $1 {[%mdl 512]}) 65... Bf8 $2 ({Not} 65... Qxa3 66. Rxb7 Kh7 67. Qf5+ Kh8 68. Qe6 $11) (65... Bg5 $19 {Strongly threatening ...Rxd7.} 66. Qd5 Qxa3 67. Qxb7 Rxd7 68. Qxd7 a5) 66. Rd8 $2 {[%mdl 8192]} (66. Qf6 $1 $11) 66... Rg8 67. Rd7 Bg7 ({Much less strong is} 67... Qxa3 68. Qf5 $19) 68. Rxb7 Qxe5 $2 (68... Qf2 $19 {is more deadly.} 69. Rf7 (69. Qg6 Qf1+ 70. Kh4 Qc4+ 71. Kh5 Qe2+ {[%mdl 64] Double Attack} 72. Kh4 Qxh2+ 73. Kg4 Qxg3+ 74. Kxg3 Bxe5+ {[%mdl 64] Discovered Attack} 75. Kf3 Rxg6 $19) 69... Qe2) 69. Qxe5 $17 Bxe5 $19 {[%mdl 4096] Endgame KRB-KR} 70. Rb6 Ra8 71. Rxh6+ Kg7 72. Rc6 a5 73. a4 Bf6 (73... Ra7 $17 74. Rc5 Bd4) 74. Rc5 (74. Kg2 $11 {remains equal.}) 74... Be7 $17 75. Rc6 ({White should play} 75. Rd5) 75... Rb8 76. Ra6 Bd8 77. Kg4 Rb4+ (77... Rb3 $17 78. Ra8 Bb6) 78. Kf5 $11 Rxa4 79. Ra7+ Kf8 {And now ...Ra3 would win.} 80. Ra8 Rd4 81. h4 Kf7 {With the idea ...Rd5+.} 82. Ra7+ Ke8 {Hoping for ...a4.} 83. g4 $1 Rd5+ 84. Ke6 {Rh7 is the strong threat.} Rd4 85. Kf5 Rb4 {White must now prevent ...Rb5+.} 86. h5 Rb5+ 87. Ke6 Rg5 88. Rh7 Rg8 89. h6 Rg6+ 90. Kf5 Rf6+ 91. Ke5 $2 {[#]} (91. Ke4 $11 {and White is okay.}) 91... Rg6 $2 (91... Rf7 $1 $19 {[%cal Rf7h7]} 92. Rh8+ Rf8) 92. Rh8+ Kd7 {aiming for ...Bf6+.} 93. Kf5 Rg5+ 94. Kf4 {Rxd8+! would kill now.} Rg6 $2 {[%mdl 8192] [#]} (94... Bf6 $11 95. Ra8 Rc5) 95. Rxd8+ $1 $18 {[%mdl 512]} Kxd8 {KR-KPP} 96. g5 Rg8 97. h7 Rf8+ 98. Ke5 Re8+ 99. Kd6 a4 100. g6 a3 101. g7 a2 102. h8=Q {Accuracy: White = 55%, Black = 51%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.5"]
[White "Sidhant, Mohapatra"]
[Black "Visakh N R"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2346"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,64,9,8,8,11,14,49,45,61,-7,-6,-15,-15,-8,-10,-25,-21,-43,-31,-35,-47,-29,-31,-41,-11,-17,-20,-20,0,0,-23,-30,-34,-29,-25,-41,-47,-459,-454,-490,-487,-646,-644,-581,-620,-631,-631,-620,-607]} 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 Nc6 10. Bg5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} Na5 11. Bb3 Ne8 12. Bxe7 {White is slightly better.} Qxe7 13. Bd5 $146 (13. Nd5 $14 Qd8 14. Qd3) ({Predecessor:} 13. Nd5 Qd8 14. Qd3 Be6 15. Rfd1 Rc8 16. Ne3 Nxb3 17. axb3 Qe7 {0-1 (42) Yu,Y (2668)-Nepomniachtchi,I (2721) Antalya 2013}) 13... Nf6 $11 14. Qd3 Be6 15. Rfd1 Rfd8 16. b4 Nc6 17. a3 Rac8 18. Qe3 Bg4 {aiming for ...Bxf3.} 19. Ne2 Nxd5 20. Rxd5 Qf6 21. Rad1 Ne7 22. R5d2 h5 23. Ne1 {[#]} d5 $1 $36 {[%mdl 2560] Black fights for an advantage.} 24. c3 {[#]} (24. exd5 Nf5) 24... d4 $1 {[%mdl 512]} 25. cxd4 exd4 26. e5 Qg6 $1 (26... dxe3 $2 {is the wrong capture.} 27. Rxd8+ (27. exf6 $2 {perishes.} Rxd2 28. fxe7 Rxd1 $19) 27... Kh7 28. exf6 $18) 27. Qf4 $2 {[%mdl 8192] [#]} (27. Qd3 $15) 27... d3 $1 $19 {[%mdl 512] Black is clearly winning.} 28. f3 (28. Rxd3 Rxd3) 28... Nd5 ({Weaker is} 28... Qb6+ 29. Kh1 $19) 29. Rxd3 Nxf4 30. Rxd8+ Rxd8 31. Rxd8+ Kh7 32. Nxf4 Qb6+ {[%mdl 64] Double Attack. Accuracy: White = 48%, Black = 70%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.6"]
[White "Pranav Vijay"]
[Black "Karthik Venkataraman"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "2265"]
[BlackElo "2479"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,96,36,0,16,4,33,21,57,50,101,42,41,30,69,54,62,68,98,56,102,86,155,144,268,273,275,226,225,54,199,227,139,0,0,0,0,-30,-3,-7,0,0,0,0,0,0,0,0,0,-2,7,0,73,73,79,72,114,116,185,79,85,11,11,11,11,11,11,15,17,18,69,69,69,69,67,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Be7 8. f4 Nc6 9. Be3 Bd7 10. a4 Rc8 {B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3} (10... O-O 11. Kh1 Qc7 12. Qe1 Rac8 13. Nb3 Nb4 14. Qd2 d5 15. e5 Ne4 16. Nxe4 dxe4 17. c3 Nd5 18. Bd4 Bc6 19. a5 Rcd8 20. Qc2 Qb8 {0-1 (52) Bologan,V (2661)-Movsesian,S (2672) Dubai 2014}) 11. Nb3 Nb4 12. a5 $146 ({Predecessor:} 12. Nd2 Bc6 13. a5 O-O 14. Ra3 d5 15. Bb6 Qd7 16. e5 Ne4 17. Nb3 Nxc3 18. bxc3 Nxc2 {0-1 (47) Uildriks,M (2013)-Jellema,Y (2222) Maarssen 2013}) 12... Bc6 13. Bf3 e5 ({Black should play} 13... Qc7 $14) 14. Qe2 (14. Rf2 $16) 14... O-O $14 15. Rad1 {fxe5 is the strong threat.} Qc7 16. f5 Bd7 17. g4 h6 18. h4 {Hoping for g5.} d5 {And now ...d4 would win.} 19. Bb6 $1 $36 {[%cal Rb6c7][%mdl 2048] Black is under strong pressure.} (19. exd5 $6 e4 $11) 19... Qb8 (19... Qc4 $142) 20. g5 $1 $16 {[%cal Rg5f6]} (20. exd5 $6 e4 $11) 20... hxg5 (20... Nh7 $16) 21. hxg5 $18 Nh7 22. f6 $1 {[%cal Rf6e7]} (22. Nxd5 Nxd5 23. Rxd5 Bb5 $11) 22... gxf6 23. Bg4 $2 ({Weaker is} 23. Nxd5 Nxd5 24. Rxd5 Bb5 $11) ({Less strong is} 23. exd5 Nxg5 24. d6 Bxd6 $16) (23. gxf6 $18 {Qg2+ would kill now.} Bxf6 24. Nc5 (24. Nxd5 Nxd5 25. Rxd5 Bb5 $11)) 23... Bxg4 (23... f5 $1 $14 24. Bxf5 Bxf5 25. Rxf5 d4) 24. Qxg4 {Threatening mate with gxf6+.} Kh8 {[#]} 25. Qd7 ({Worse is} 25. Nxd5 Nxd5 26. exd5 Rxc2 $17) (25. Kf2 $1 $16 {Intending Rh1! and mate.} fxg5 26. Rh1) 25... Qd6 $1 $11 {[%cal Rd6d7]} 26. Qxd6 Bxd6 27. Nxd5 Rxc2 28. Nxf6 Nxf6 29. Rxf6 Be7 30. Rf2 Rxf2 31. Kxf2 Rc8 32. Rd7 Rc2+ 33. Kf3 Bxg5 34. Rxf7 Nd3 (34... Rxb2 $11 35. Nd4 Kg8) 35. Kg4 $16 Bf4 36. Kf5 Nxb2 37. Rxb7 Nc4 (37... Kg8 $16 {keeps fighting.}) 38. Rd7 (38. Ke6 $18 {is more deadly.}) 38... Rb2 {[#]} 39. Nc5 (39. Rd3 $1 $16) 39... Nxb6 $11 40. axb6 Rxb6 {[%mdl 4096] Endgame KRB-KRN} 41. Ra7 Rh6 42. Nd7 Rh5+ 43. Ke6 {White wants to mate with Nf6.} Rh7 ({Better is} 43... Rh4 $11) 44. Rxa6 $14 {Threatens to win with Nf6.} Kg7 {Strongly threatening ...Rh6+.} 45. Nf6 $1 Rh8 46. Kf5 (46. Ra7+ $1 $14 Kg6 47. Ra1) 46... Rf8 $11 {The position is equal.} 47. Ra7+ Rf7 48. Rxf7+ Kxf7 {Accuracy: White = 54%, Black = 33%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.7"]
[White "Vishnu Prasanna. V"]
[Black "Lakshmi Narayanan M V"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2474"]
[BlackElo "2162"]
[Annotator "TA"]
[PlyCount "139"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,139,16,8,2,0,0,0,0,1,0,-5,-3,0,0,-22,-20,-29,-33,-43,-40,-41,-36,-37,-21,-35,-20,-28,0,-37,-33,-48,-36,-50,-10,-56,-24,-96,-89,-102,-116,-114,-119,-131,-75,-87,-78,-100,-96,-100,-95,-100,-93,-127,-118,-270,-91,-89,-60,-62,-65,-81,-75,-80,-77,-175,-38,-218,-202,-189,-180,-174,0,-110,0,-26,-25,-68,0,-122,0,0,0,0,0,0,0,-47,-49,-56,0,-1813,0,-2013,1844,-843,0,0,0,0,0,0,0,-154,0,-581,-568,-535,-424,-5481,-5235,-1702,-142,-140,0,0,0,-12839,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 c6 5. Bg2 Nbd7 6. O-O Be7 7. b3 O-O 8. Bb2 b6 9. Nc3 Ba6 10. Nd2 b5 {[%cal Rb5c4] E07: Closed Catalan: Main Line (5 Nf3 0-0 6 0-0 Nbd7)} 11. cxb5 cxb5 12. a3 Qb6 $146 ({Predecessor:} 12... Rc8 13. Re1 Rc7 14. b4 Nb6 15. Nb3 Nc4 16. Bc1 Nd7 17. Bf4 Rc8 18. h4 {½-½ (53) Gledura,B (2654)-Grandelius,N (2691) Batumi 2019}) 13. b4 Bb7 14. Nb3 Rfc8 15. Qd3 a6 16. Rac1 Qa7 17. Rc2 Nb6 18. Rb1 Nc4 19. Bc1 Bc6 20. e3 Rc7 21. Qd1 Rac8 22. Nc5 Nd7 23. Rb3 Rd8 24. Qh5 Nf6 25. Qe2 Qa8 26. Ra2 Ra7 27. g4 (27. a4 $11 {remains equal.}) 27... Ne4 28. Qc2 {[%cal Rc3e4]} Nxc3 29. Qxc3 a5 30. Nd3 {[#]} Rc8 (30... e5 $142 $1 {[%mdl 512]} 31. bxa5 (31. Nxe5 axb4) 31... e4) 31. Rc2 Bd6 32. Bf1 Rcc7 33. f4 axb4 34. axb4 Ra1 35. Nc5 Rca7 36. Qe1 $2 (36. Re2 $17) 36... Qd8 $2 (36... Bxc5 $19 {is more deadly.} 37. bxc5 R7a2 38. Rxa2 Qxa2) 37. Bd3 $17 g6 38. Re2 R1a2 39. Rxa2 Rxa2 40. Bb1 Ra1 41. g5 {[#]} (41. Nd3 $17) 41... Qa8 (41... e5 $1 $19 {[%mdl 512] White must now prevent ...Qc8.} 42. Qc3 (42. dxe5 Bxc5) 42... exf4 $1 {[%mdl 512]} 43. exf4 (43. Qxa1 $2 {too greedy.} Qxg5+ 44. Kf1 fxe3 $19) 43... Qe7) 42. h4 $2 (42. Bb2 $15) 42... Bxc5 $1 $19 43. bxc5 Qa4 44. Qc3 Qa8 $2 (44... Na5 $1 $19 {[%cal Ra5b3]} 45. Rb4 Qd1+ 46. Kf2 Nc4) 45. h5 (45. Qe1 $11) 45... Ra4 (45... Qa5 $1 $17 {[%cal Ra5c3]} 46. Qxa5 Nxa5) 46. h6 Qd8 47. e4 f6 ({Black should play} 47... Qa5 $15 48. e5 Qxc3 49. Rxc3 Kf8) 48. Qh3 (48. e5 $11) 48... f5 (48... Qd7 $17 49. e5 Na5) 49. exf5 $11 exf5 50. Kf2 Ra7 51. Qf3 Re7 52. Bd3 Qa5 {...Qe1+ is the strong threat.} 53. Qd1 Qa4 (53... Kf7 $1 $15) 54. Bd2 $2 {[%mdl 8192]} (54. Bc2 $11) 54... Qa2 $2 (54... Nxd2 $19 55. Qxd2 Qxb3) 55. Kg3 $2 {[%mdl 8192]} (55. Bc2 $11) 55... Qa5 $4 {[%mdl 8192]} (55... Nxd2 $19 56. Rc3 Re3+ 57. Kg2 Nf3+ 58. Qc2 Qxc2+ 59. Rxc2 Rxd3) 56. Kf2 $4 {[%mdl 8192]} (56. Bxa5 $18 Rd7 57. Qa1) 56... Qa2 $2 (56... Nxd2 $19 57. Rb2 Ne4+ 58. Bxe4 Rxe4) 57. Bc2 Re4 $36 {[%mdl 2112] Pin. Black is more active.} 58. Bc1 Kf7 59. Kg3 Re6 60. Rc3 $2 (60. Bd2 $11) 60... Qa5 $2 (60... Re7 $17 61. Rb3 Qa1) 61. Qf3 $2 {[%mdl 8192]} (61. Bd2 $1 $11 {and White stays safe.} b4 62. Rb3) 61... Qa1 $19 62. Bb3 b4 63. Rxc4 (63. Rc2 $142 Qxd4 64. Qf2) 63... dxc4 64. d5 Bxd5 $2 (64... Ke7 $19 65. Be3 Bxd5 66. Qe2 cxb3 67. c6 {[#]} Qc3 $1 {[%mdl 576] Double Attack} 68. Kf2 b2 69. c7 b1=Q 70. c8=Q Qxc8 71. Kg3 Qc3 $1 {[%mdl 512]} 72. Kf2 Qh1 73. Bc5+ Qxc5+ 74. Kg3 Qcg1+ 75. Qg2 Qgxg2#) 65. Qxd5 $17 Qc3+ ({But not} 65... Qxc1 $6 66. Qb7+ Re7 67. Qd5+ Kf8 68. Qd8+ Kf7 69. Qd5+ Re6 70. Qb7+ Re7 71. Qd5+ $11 {[%mdl 64] Double Attack}) ({Better is} 65... cxb3 $17 66. Qb7+ Re7 67. Qxb4 Qa6 68. Qxb3+ Qe6) 66. Kg2 $11 Qxb3 67. Bd2 $2 {[%mdl 8192]} (67. Qd7+ $11 Re7 68. Qd5+ Kf8 69. Qd8+ Kf7 70. Qd5+ Kf8 71. Qd8+ Kf7 72. Qd5+) 67... Qc2 $2 (67... Qd3 $19 68. Qxd3 cxd3 69. Bxb4 Re4 {[%mdl 64] Decoy}) 68. Qd7+ {The position is equal.} Re7 69. Qd5+ Kf8 {( -> ...Re2+)} 70. Qd8+ {Accuracy: White = 31%, Black = 44%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.7"]
[White "Vishnu Prasanna. V"]
[Black "Lakshmi Narayanan M V"]
[Result "*"]
[ECO "E07"]
[WhiteElo "2474"]
[BlackElo "2162"]
[Annotator "ChessBase"]
[PlyCount "51"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:04]} Nf6 {[%emt 0:00:14]} 3. c4 {[%emt 0:00:30]} e6 {[%emt 0:00:30]} 4. g3 {[%emt 0:00:34]} c6 {[%emt 0:03:26]} 5. Bg2 {[%emt 0:00:23]} Nbd7 {[%emt 0:00:19]} 6. O-O {[%emt 0:02:30]} Be7 {[%emt 0:01:09]} 7. b3 {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 8. Bb2 {[%emt 0:00:59]} b6 {[%emt 0:02:30]} 9. Nc3 {[%emt 0:00:30]} Ba6 {[%emt 0:00:30]} 10. Nd2 {[%emt 0:00:30]} b5 {[%emt 0:00:30]} 11. cxb5 {[%emt 0:00:30]} cxb5 {[%emt 0:00:30]} 12. a3 {[%emt 0:00:00]} Qb6 {[%emt 0:19:58]} 13. b4 {[%emt 0:00:22]} Bb7 {[%emt 0:00:30]} 14. Nb3 {[%emt 0:00:30]} Rfc8 {[%emt 0:00:30]} 15. Qd3 {[%emt 0:00:30]} a6 {[%emt 0:00:30]} 16. Rac1 {[%emt 0:00:30]} Qa7 {[%emt 0:00:30]} 17. Rc2 {[%emt 0:00:30]} Nb6 {[%emt 0:00:30]} 18. Rb1 {[%emt 0:00:30]} Nc4 {[%emt 0:00:30]} 19. Bc1 {[%emt 0:00:30]} Bc6 {[%emt 0:00:30]} 20. e3 {[%emt 0:00:30]} Rc7 {[%emt 0:00:30]} 21. Qd1 {[%emt 0:00:30]} Rac8 {[%emt 0:00:30]} 22. Nc5 {[%emt 0:00:30]} Nd7 {[%emt 0:00:30]} 23. Rb3 {[%emt 0:00:30]} Rd8 {[%emt 0:00:30]} 24. Qh5 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 25. Qe2 {[%emt 0:00:30]} Qa8 {[%emt 0:00:30]} 26. Qd1 {[%emt 0:30:21]} *

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.8"]
[White "Taher, Yoseph Theolifus"]
[Black "Priyanka, Kumari"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2462"]
[BlackElo "1874"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,133,16,18,11,21,14,10,15,13,17,15,9,5,0,3,0,0,0,0,0,16,0,0,0,0,0,0,0,0,-17,0,0,70,94,46,36,56,23,71,59,94,88,89,91,98,104,104,113,109,-192,-192,-192,-192,-192,-192,-182,-183,-188,-176,-233,-229,-215,-120,-194,-210,-210,-190,-255,-209,-247,-172,-194,-8,-8,-8,-8,-8,-8,-8,-57,-8,-57,-57,-57,-8,-8,-8,-8,-8,-8,-8,-8,-8,-12,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,-8,0,-8,0,-8,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,-4]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 5. Be2 Nc6 6. Qe3 {B53: Sicilian: 2...d6: Lines with Qxd4} g6 7. h3 Bg7 8. O-O O-O 9. Rd1 Be6 10. Nc3 Rc8 11. a3 $146 ({Predecessor:} 11. Rb1 Qc7 {½-½ (21) Demchenko,A (2679)-Volokitin,A (2634) Germany 2019}) 11... Qc7 12. Rb1 a6 13. Nd5 Bxd5 14. exd5 Na5 15. Ne1 b5 16. b3 Rfe8 17. Bb2 e6 $1 18. dxe6 Rxe6 19. Qd3 Rce8 20. Bf3 Nd7 ({Better is} 20... Nc6 $11) 21. Bxg7 $14 Kxg7 22. Bd5 Re2 23. Qd4+ Kg8 24. Bf3 R2e6 25. Nd3 Ne5 26. Bd5 R6e7 27. Nf4 Nac6 28. Bxc6 Qxc6 29. Qxd6 $2 {[%mdl 8192] [#]} (29. Rd2 $16 {and life is bright.}) 29... Nf3+ $1 $19 {[%mdl 512]} 30. gxf3 Re1+ $1 31. Kg2 Qxd6 {[%mdl 64] Overworked Piece} 32. Rxd6 Rxb1 33. Rxa6 {[%mdl 4096] Endgame KRR-KRN} Rc8 34. Rb6 (34. b4 {was called for.}) 34... Rxc2 35. Rxb5 Ra2 (35... Rc3 $19 36. b4 Rxa3 37. Rb8+ Kg7) 36. Nd5 (36. Rb8+ $17 {was worth a try.} Kg7 37. Rb7) 36... Rxa3 37. b4 Rbb3 38. f4 (38. Nf6+ $142 Kg7 39. Ne8+ Kh6 40. Nd6) 38... Rxh3 39. f5 gxf5 40. Ne3 Rhxe3 $2 (40... Rh5 $19 {Threatens to win with ...Kg7.} 41. Nxf5 Rg5+ 42. Kf1 f6 43. Rb8+ Kf7 44. Nd6+ Ke7) 41. fxe3 $11 Rxe3 42. Rxf5 $19 {KR-KR} Rb3 43. Rb5 Kg7 44. Rb8 Kg6 45. b5 h5 46. b6 h4 47. Kh2 {The position is equal.} h3 48. Rg8+ Kf5 {[#]} 49. Rg3 $1 {[%mdl 512]} Rxb6 {Threatening ...Rh6.} 50. Rf3+ Kg6 51. Kxh3 f5 52. Kg3 Kg5 53. Ra3 Rb4 54. Rc3 Rg4+ 55. Kf3 Rh4 56. Kg3 (56. Kf2 {is interesting.} Rh2+ 57. Kg3 Rd2 58. Rf3 Re2 59. Ra3) 56... Rg4+ 57. Kf3 Rh4 58. Kg3 $1 Rh8 59. Rc5 Rh1 60. Ra5 Rg1+ 61. Kf3 Rb1 62. Ra3 Rh1 {( -> ...Rh3+)} 63. Kg3 f4+ 64. Kg2 Rc1 65. Ra8 Rc2+ 66. Kf3 Rc3+ 67. Kf2 {Accuracy: White = 59%, Black = 52%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.9"]
[White "Jubin Jimmy"]
[Black "Neverov, Valeriy"]
[Result "1/2-1/2"]
[ECO "E64"]
[WhiteElo "2193"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,76,91,71,81,61,67,50,70,43,65,39,62,58,89,41,89,6,6,6,11,11,11,11,11,11,12,12,15,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. g3 c5 4. d5 e5 5. Nc3 d6 6. Bg2 Bg7 7. e4 O-O 8. Nf3 Nbd7 9. O-O a6 10. a4 b6 {E64: King's Indian: Fianchetto: 6...c5 7 d5} (10... Ng4 11. Bd2 Kh8 12. a5 Qe7 13. Na4 f5 14. Ng5 Ndf6 15. Nb6 Rb8 16. Nxc8 Rfxc8 17. f3 Nh6 18. Ne6 {1-0 (38) Grischuk,A (2715)-Korotylev,A (2600) Moscow 2007}) 11. Ne1 Ne8 12. Nd3 Rb8 {White is slightly better.} 13. Qe2 f5 14. f4 $146 ({Predecessor:} 14. Be3 Ndf6 15. f3 Bd7 16. b4 Nh5 17. Bf2 Qc8 18. Rfb1 Nef6 19. bxc5 bxc5 20. Rxb8 Qxb8 21. Rb1 {½-½ (21) Hansen,V-Hamann,S Aalborg 1965}) 14... Rb7 15. Bd2 Nef6 16. Rae1 (16. exf5 {is more complex.} gxf5 17. fxe5 Nxe5 18. Nf4 Re7 19. Ne6) 16... fxe4 17. Nxe4 (17. Bxe4 $16 Re8 18. f5) 17... Nxe4 $11 {The position is equal.} 18. Bxe4 Nf6 19. fxe5 Nxe4 20. Qxe4 {[#] Hoping for e6.} Bf5 21. Qe2 {Black must now prevent e6.} Bxd3 22. Qxd3 Bxe5 23. Rxf8+ Qxf8 24. Bc3 Bxc3 25. Qxc3 {[%mdl 4096] Endgame KQR-KQR} Re7 26. Kg2 (26. Rxe7 {keeps more tension.} Qxe7 27. Kf2 Qf7+ 28. Kg1 Qf5 29. Kg2) 26... Qe8 27. Rxe7 Qxe7 {KQ-KQ} 28. Kf3 Qf7+ 29. Kg2 Qf5 30. Qe3 Kf7 31. b3 g5 32. Qe2 g4 33. Qe3 Kf6 34. Qe8 Qf3+ 35. Kg1 Qd1+ 36. Kg2 Qd2+ 37. Kg1 Qd1+ 38. Kg2 Qd2+ {Accuracy: White = 41%, Black = 78%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.10"]
[White "Deshmukh, Anup"]
[Black "Das, Sayantan"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2163"]
[BlackElo "2424"]
[Annotator "ChessBase"]
[PlyCount "52"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:04:27]} Nf6 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:13]} g6 {[%emt 0:00:29]} 3. d4 {[%emt 0:02:18]} Bg7 {[%emt 0:00:14]} 4. Nf3 {[%emt 0:00:09]} O-O {[%emt 0:00:16]} 5. e4 {[%emt 0:00:27]} d6 {[%emt 0:00:05]} 6. Be2 {[%emt 0:01:03]} Bg4 {[%emt 0:05:33]} 7. Be3 {[%emt 0:00:34]} Nfd7 {[%emt 0:02:50]} 8. O-O {[%emt 0:02:11]} c5 {[%emt 0:01:12]} 9. d5 {[%emt 0:04:59]} Na6 {[%emt 0:01:42]} 10. Qd2 {[%emt 0:01:47]} Nc7 {[%emt 0:05:15]} 11. Bg5 {[%emt 0:14:52]} a6 {[%emt 0:06:17]} 12. a4 {[%emt 0:09:47]} Rb8 {[%emt 0:02:57]} 13. Rfe1 {[%emt 0:01:52]} Bxf3 {[%emt 0:02:32]} 14. Bxf3 {[%emt 0:00:23]} b5 {[%emt 0:01:53]} 15. axb5 {[%emt 0:01:14]} axb5 {[%emt 0:00:06]} 16. Ra7 {[%emt 0:04:30]} bxc4 {[%emt 0:07:01]} 17. Bxe7 {[%emt 0:12:41]} Qxe7 {[%emt 0:00:26]} 18. Rxc7 {[%emt 0:00:07]} Qd8 {[%emt 0:02:40]} 19. Ra7 {[%emt 0:00:31]} Bd4 {[%emt 0:05:10]} 20. Nd1 {[%emt 0:05:18]} Ne5 {[%emt 0:03:07]} 21. Be2 {[%emt 0:00:13]} Qh4 {[%emt 0:02:29]} 22. Ra3 {[%emt 0:07:55]} Rxb2 {[%emt 0:10:58]} 23. Nxb2 {[%emt 0:05:39]} Qxf2+ {[%emt 0:00:50]} 24. Kh1 {[%emt 0:00:07]} Bxb2 {[%emt 0:00:24]} 25. Rf1 {[%emt 0:03:55]} Qd4 {[%emt 0:01:50]} 26. Qxd4 {[%emt 0:00:57]} cxd4 {[%emt 0:00:12]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.11"]
[White "Khusenkhojaev, Muhammad"]
[Black "Ramakrishna, J.."]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "2420"]
[BlackElo "2068"]
[Annotator "ChessBase"]
[PlyCount "74"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:02:03]} Nf6 {[%emt 0:01:00]} 2. c4 {[%emt 0:00:05]} c6 {[%emt 0:02:50]} 3. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:10]} 4. Qc2 {[%emt 0:00:05]} g6 {[%emt 0:02:21]} 5. Bf4 {[%emt 0:00:06]} Bg7 {[%emt 0:02:12]} 6. e3 {[%emt 0:00:11]} O-O {[%emt 0:00:43]} 7. Nc3 {[%emt 0:00:39]} Na6 {[%emt 0:09:34]} 8. Be2 {[%emt 0:10:09]} Nb4 {[%emt 0:05:57]} 9. Qb3 {[%emt 0:01:37]} a5 {[%emt 0:00:08]} 10. O-O {[%emt 0:05:17]} dxc4 {[%emt 0:03:32]} 11. Bxc4 {[%emt 0:01:08]} b5 {[%emt 0:00:10]} 12. Be2 {[%emt 0:01:15]} Be6 {[%emt 0:00:08]} 13. Qd1 {[%emt 0:00:07]} Nbd5 {[%emt 0:12:24]} 14. Nxd5 {[%emt 0:01:56]} Bxd5 {[%emt 0:00:41]} 15. h3 {[%emt 0:11:47]} Qb6 {[%emt 0:02:10]} 16. Qc2 {[%emt 0:02:19]} Be4 {[%emt 0:03:36]} 17. Qc1 {[%emt 0:04:06]} Rac8 {[%emt 0:02:19]} 18. Nd2 {[%emt 0:00:39]} c5 {[%emt 0:11:07]} 19. Nxe4 {[%emt 0:00:16]} Nxe4 {[%emt 0:00:07]} 20. d5 {[%emt 0:02:46]} c4 {[%emt 0:00:51]} 21. Qc2 {[%emt 0:00:15]} Nd6 {[%emt 0:04:30]} 22. Rac1 {[%emt 0:03:32]} c3 {[%emt 0:06:33]} 23. bxc3 {[%emt 0:01:50]} Rxc3 {[%emt 0:00:16]} 24. Qb1 {[%emt 0:00:20]} b4 {[%emt 0:00:52]} 25. Rxc3 {[%emt 0:00:33]} Bxc3 {[%emt 0:00:09]} 26. Qd3 {[%emt 0:02:14]} Rc8 {[%emt 0:06:46]} 27. e4 {[%emt 0:04:52]} Bd4 {[%emt 0:04:12]} 28. e5 {[%emt 0:00:57]} Nf5 {[%emt 0:02:51]} 29. Bg4 {[%emt 0:04:17]} Rc3 {[%emt 0:02:11]} 30. Qe4 {[%emt 0:00:08]} Ng3 {[%emt 0:09:56]} 31. Bxg3 {[%emt 0:00:15]} Rxg3 {[%emt 0:00:04]} 32. d6 {[%emt 0:04:33]} exd6 {[%emt 0:00:30]} 33. e6 {[%emt 0:00:30]} fxe6 {[%emt 0:00:30]} 34. Qxe6+ {[%emt 0:00:30]} Kf8 {[%emt 0:00:30]} 35. Qc8+ {[%emt 0:00:30]} Kg7 {[%emt 0:00:30]} 36. Qd7+ {[%emt 0:00:30]} Kh6 {[%emt 0:00:30]} 37. Qe7 {[%emt 0:09:29]} Rc3 {[%emt 0:02:39]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.12"]
[White "Muthaiah AL"]
[Black "Goganov, Aleksey"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2367"]
[BlackElo "2583"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,104,2,5,2,18,14,6,14,2,19,0,0,0,0,-14,-7,-46,-49,-66,-54,-70,-36,-36,-35,-34,-37,-21,-31,-28,-18,-33,-33,-37,-33,-36,-32,-38,-20,-54,-20,-53,-43,-60,-32,-60,-60,-66,-37,-53,-43,-52,-52,-146,-134,-139,-123,-207,-215,-202,-217,-217,-209,-204,-191,-202,-175,-241,-239,-287,-294,-281,-282,-278,-270,-273,-293,-614,-623,-612,-596,-662,-655,-652,-641,-586,-580,-4618,-4562,-2502,-1907,-1277,-1277]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc7 7. d3 e5 8. Nd2 Be7 {A34: Symmetrical English: 2 Nc3, lines with ...d5} 9. Nc4 f6 10. f4 exf4 {The position is equal.} 11. Bxf4 O-O 12. Bxc7 $146 ({Predecessor:} 12. Rc1 Be6 13. Ne3 Bf7 14. Nf5 Ne6 15. O-O Re8 16. Kh1 {½-½ (41) Dubov,D (2658)-Levin,E (2524) Sochi 2017}) 12... Qxc7 13. Nd5 Qd8 14. O-O Be6 15. e4 Bd6 16. Rc1 Rc8 17. Kh1 Be5 (17... Nd4 {with more complications.} 18. Qd2 b6 19. Qf2 Nc6 20. a3 Re8) 18. Nxe5 Nxe5 19. d4 cxd4 20. Rxc8 Bxc8 21. Qxd4 a6 22. h3 Bd7 23. Qc5 Kh8 24. Kh2 h6 25. Rd1 Re8 26. b4 Qc8 27. Nc7 Rg8 28. Qd6 Qf8 29. Qb6 Qf7 30. Nd5 Bc6 31. Qd4 Re8 32. Rd2 Qh5 33. Nf4 (33. Nc7 $15) 33... Nf3+ $17 34. Kh1 Qb5 ({Not} 34... Rxe4 35. Qd8+ (35. Nxh5 {leads to mate.} Re1+ 36. Bf1 Rxf1+ 37. Kg2 Nxd2+ {[%mdl 64] Discovered Attack} 38. Qd5 Bxd5+ 39. Kh2 Rh1#) 35... Kh7 36. Qd3 $16 (36. Nxh5 Re1+ 37. Bf1 Rxf1+ 38. Kg2 Nxd2+ {[%mdl 64] Discovered Attack} 39. Qd5 Bxd5+ 40. Kh2 Rh1#)) 35. Bxf3 (35. a4 $17 {was worth a try.} Nxd4 36. axb5 Nxb5 37. Nd5) 35... Qf1+ $19 {[%mdl 64] [#] Double Attack} 36. Kh2 {Hoping for Rf2.} Qxf3 $40 {[%mdl 128] Black wants a kill.} 37. Rd3 Qxe4 38. Qxe4 Rxe4 {[%mdl 4096] Endgame KRB-KRN} 39. a3 Kg8 40. h4 (40. Kg1 $142) 40... g5 41. hxg5 hxg5 ({Don't do} 41... fxg5 42. Nh5 $19) 42. Nd5 Re2+ 43. Kg1 Kf7 44. Kf1 Ra2 {[#] Threatens to win with ...Bb5.} 45. Ke1 $2 (45. Nc7) 45... Bxd5 {Black is clearly winning.} 46. Rxd5 Rxa3 {KR-KR} 47. Rd7+ Kg6 48. Kf2 b5 49. Rd6 Kf5 50. Rb6 Kg4 51. Rxf6 Ra2+ 52. Ke3 Kxg3 {Accuracy: White = 30%, Black = 72%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.13"]
[White "Ameir, Moheb"]
[Black "Rozum, Ivan"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "2363"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,93,33,14,24,18,34,34,35,31,38,45,43,24,45,56,64,59,61,69,68,62,68,63,47,66,189,188,187,204,190,119,124,112,126,130,127,115,112,126,146,136,146,146,152,148,149,150,152,139,157,157,161,141,166,152,187,178,192,192,247,189,243,247,245,249,275,279,364,359,501,501,515,513,506,509,509,481]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 b6 10. O-O Bb7 {B44: Sicilian: Taimanov: 5 Nb5} 11. Be3 Ne5 (11... Nb8 12. f3 Nbd7 13. Qd2 O-O 14. Rfd1 Qc7 15. Rac1 Rac8 16. Bf1 Qb8 17. Kh1 Rfe8 18. Bf4 Ne5 19. Qf2 Ba8 20. Be3 Bd8 21. Na4 Ned7 22. Nc3 Bc7 23. Qg1 {½-½ (23) Steingrimsson,H (2549)-Leitao,R (2606) Selfoss 2019}) 12. f4 Ned7 {White is slightly better.} 13. Bf3 Qc7 14. Rc1 Rc8 15. Qe2 Qb8 $146 ({Predecessor:} 15... Nc5 16. Bf2 O-O 17. Nab1 Qb8 18. Nd2 {0-1 (29) Tomba,I (2022)-Sbarra,M (2285) Bratto 2000}) 16. Nab1 Qa8 {[%cal Rf6e4]} 17. Nd2 O-O 18. g4 Nc5 {[%cal Rf6e4]} 19. Bf2 d5 20. exd5 $1 exd5 21. g5 ({And not} 21. Qxe7 Rfe8 $17) 21... Rfe8 (21... Nfe4 $14) 22. gxf6 $18 Bxf6 23. Qd1 {[%cal Rc3d5]} dxc4 24. Bxc5 (24. Bxb7 $18 Qxb7 25. Nxc4) 24... Rxc5 $16 25. Bxb7 Qxb7 26. Qf3 Qxf3 27. Nxf3 Rf5 28. Rfe1 {[%cal Re1e8] [#]} Kf8 29. Rxe8+ Kxe8 30. Kf2 Bxc3 31. Rxc3 Rxf4 {[%mdl 4096] Endgame [#] KRN-KR} 32. Kg3 $1 {[%cal Rg3f4]} Re4 33. Nd2 Re2 34. Nxc4 Kd8 35. Rd3+ ({But not} 35. Nxb6 Rxb2 36. Rc8+ Ke7 $16) 35... Kc7 36. Rd2 Re1 37. Rc2 f6 38. Ne3+ Kd7 (38... Kb8 {was called for.}) 39. Kf2 Rb1 (39... Ra1 $142 40. b3 b5) 40. Nd5 $18 b5 41. Nc7 g5 42. Nxa6 f5 43. Nc7 h5 44. Nxb5 {White is clearly winning.} Rh1 45. Kg2 Rd1 46. Nc3 Rd3 47. a4 {Accuracy: White = 96%, Black = 39%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.14"]
[White "Senthil Maran K"]
[Black "David, Alberto"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "2328"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,103,31,32,18,39,10,8,8,0,18,0,4,18,41,45,0,10,-34,0,0,0,0,0,0,0,-69,-59,-61,-75,-173,-120,-227,-145,-231,-78,-161,-120,-116,-115,-111,-115,-87,-104,-161,-160,-210,-204,-195,-146,-123,-125,-291,-295,-277,-250,-266,-272,-318,-229,-362,-202,-354,-341,-512,-370,-510,-486,-604,-620,-1137,-1121,-1082,-1043,-811,-800,-1024,-1006,-4702,-274,-2894,-2356,-2546,-2546,-29992,-29989,-29986,-29987,-29986]} 1. Nf3 g6 2. d4 Bg7 3. e4 d6 4. Bc4 Nf6 5. Qe2 c6 6. e5 dxe5 7. dxe5 Nd5 8. O-O O-O 9. h3 b5 10. Bb3 {B04: Alekhine's Defence: 4 Nf3} Qb6 11. Qe4 $146 ({Predecessor:} 11. a4 bxa4 12. Rxa4 Ba6 13. Bc4 Bb5 14. Ra1 Na6 15. Na3 Nac7 16. Bd3 Bxd3 17. Qxd3 Ne6 {½-½ (30) De la Villa Garcia,J (2457)-Burmakin,V (2581) Benasque 2007}) 11... Nd7 12. e6 {The position is equal.} ({Much worse is} 12. Bxd5 cxd5 13. Qf4 (13. Qxd5 Nxe5 14. Nxe5 Bb7 $17) 13... Bb7 $15) 12... Nc5 13. exf7+ $1 Rxf7 14. Qh4 Rxf3 15. gxf3 Bf5 16. c3 (16. Nc3 $5 {[%cal Rc3d5]} Nxb3 17. Nxd5 cxd5 18. axb3 $14) 16... e6 ({Reject} 16... Nxb3 17. axb3 e5 18. Re1 $16) 17. Bg5 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 18. Nd2 a4 19. Bxd5 $1 cxd5 20. Be3 {And now b4 would win.} Qc6 21. Bd4 (21. Bxc5 $11 Qxc5 22. a3) 21... Nd3 $15 {Hoping for ...e5.} 22. Bxg7 Kxg7 23. Rab1 (23. Rfe1 $17) 23... Rf8 (23... Qc7 $19 24. Kh1 Kg8) 24. Rfd1 (24. Rfe1 $17) 24... Qd6 25. Ne4 (25. Re1 $17 {is a better defense.}) 25... Bxe4 $2 (25... Qf4 $1 $19 {[%cal Rf4h4]} 26. Qxf4 Nxf4) 26. fxe4 (26. Rxd3 $17 Rf4 27. Qxf4 Qxf4 28. fxe4) 26... Rxf2 {[%csl Gf2][%cal Rd6h2]} 27. e5 Qxe5 $40 {[%csl Gf2][%cal Re5h2][%mdl 128] Black goes for the king.} 28. Qd4 Qxd4 29. cxd4 $17 {[%mdl 4096] Endgame KRR-KRN} Rf3 30. Kg2 {[#]} (30. h4 $17) 30... Re3 $1 $19 31. Rf1 g5 32. h4 h6 33. hxg5 hxg5 34. a3 $2 {[#]} (34. Rbd1 $17 {was necessary.}) 34... Nf4+ $1 35. Kh1 Rh3+ 36. Kg1 Rb3 37. Kh1 Kg6 38. Rfc1 (38. Rbe1 {was called for.}) 38... Rh3+ 39. Kg1 Kf5 40. Rc5 (40. Re1 $142) 40... Ne2+ {Played: Rh3-b3} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.15"]
[White "Yudin, Sergei"]
[Black "Rathnakaran, K.."]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2508"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,67,0,0,33,41,48,41,49,49,75,57,118,110,138,140,141,138,202,154,214,205,180,107,99,107,151,145,150,139,293,281,310,275,283,264,308,302,847,812,1014,977]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. O-O Bd6 11. Nf3 Qc7 12. Nc3 a6 13. h3 O-O 14. Be3 Bd7 15. Rc1 Rae8 {[%cal Ba8e8,Be8e7,Be7g7][%mdl 32] C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines} (15... Rad8 16. Na4 Qb8 17. Nc5 Bxc5 18. Rxc5 Ne4 19. Bxe4 dxe4 20. Ng5 h6 21. Nxe4 b6 22. Rh5 Be8 23. Rxh6 gxh6 {1-0 (39) Nisipeanu,L (2670)-Parvanyan,A (2426) Skopje 2019}) 16. Na4 Re7 17. Ne5 Be8 {White is slightly better.} 18. f4 Nh5 $146 ({Predecessor:} 18... Qa5 19. Nc3 Bb8 20. a3 Ba7 21. Bb1 Nxe5 22. fxe5 Nd7 23. Qg4 Rxf1+ 24. Rxf1 {0-1 (48) Feher,G (2360)-Huch,R (2155) Passau 1996}) 19. a3 g5 (19... Qd8 $14) 20. Qg4 $16 (20. fxg5 $6 Rxf1+ 21. Bxf1 (21. Qxf1 Bxe5 22. dxe5 Qxe5 $15) 21... Bxe5 $11) 20... Nf6 21. Qxg5+ Rg7 22. Qh4 $1 Be7 (22... Qe7 $16 {was necessary.} 23. Nc3 Nh5 24. Qxe7 Bxe7) 23. Qe1 Kh8 (23... Ne4 $16 {might work better.} 24. Bxe4 dxe4) 24. Nc5 $18 Rfg8 25. Rc2 ({White should try} 25. Nxe6 $18 Rxg2+ 26. Kh1) 25... Bxc5 $16 26. dxc5 {Nxc6 is the strong threat.} d4 27. Bc1 $1 Nxe5 28. Qxe5 Qd8 $2 (28... Qxe5 $16 {keeps fighting.} 29. fxe5 Nd5) 29. f5 ({And not} 29. Qxe6 Bc6 $15) 29... Bc6 {[%cal Rg7g2]} 30. Rff2 $1 Nd7 31. Qxd4 (31. Qxe6 Bxg2 32. Rxg2 Nxc5 $16) 31... e5 {[#]} 32. Qd6 $1 Nxc5 $2 (32... Nf6) 33. Qxc5 $18 Qxd3 {[#]} 34. Bh6 $1 {Accuracy: White = 76%, Black = 37%.} ({Inferior is} 34. f6 Qd1+ 35. Kh2 Rg3 $11) 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.16"]
[White "Srihari L R"]
[Black "Rios, Cristhian Camilo"]
[Result "1-0"]
[ECO "D77"]
[WhiteElo "2302"]
[BlackElo "2498"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,24,35,19,12,32,33,19,10,16,11,21,21,17,25,25,25,25,22,22,22,22,22,25,17,20,19,75,75,80,79,83,71,73,73,89,45,151,48,138,134,153,153,151,160,149,126,400,352,428,228,2439,2364,29983,29984,29984,29985,29985,12827,29986,29987,29987,29987]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c5 7. dxc5 dxc4 8. Na3 c3 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6} 9. Nb5 cxb2 10. Bxb2 Bd7 {White is slightly better.} 11. Nfd4 $146 ({Predecessor:} 11. Qb3 Bc6 12. Rfd1 Qc8 13. Rac1 Nbd7 14. Nbd4 Bd5 15. Qa3 Re8 16. c6 {1-0 (28) Kramnik,V (2809)-Topalov,V (2760) London 2016}) 11... Qc8 12. Qb3 Nc6 13. Rfd1 Nxd4 14. Nxd4 Qxc5 15. Ba3 Qa5 {Hoping for ...Ba4.} 16. Bxe7 Rfe8 $1 {[%cal Re8e7]} 17. Bxf6 Bxf6 18. Qxb7 Rad8 {Strongly threatening ...Ba4.} 19. e3 Ba4 20. Rd3 Bxd4 (20... Bb5 $11 {remains equal.} 21. Nb3 Qa6 22. Qxa6 Bxa6 23. Rxd8 Rxd8) 21. Rxd4 $16 Rxd4 22. exd4 Qc3 23. Rb1 Qxd4 {[#]} 24. Bd5 $1 {[%mdl 512]} Rf8 25. Rb4 Qd1+ 26. Kg2 a6 (26... Bc2 $14) 27. Rf4 $36 {[%cal Rd5f7][%mdl 2048] White is in control.} Bb5 {( -> ...Bf1+)} 28. h4 {[%cal Rd5f7]} Be8 29. Kh2 a5 30. a4 Qe1 $2 {[%mdl 8192]} (30... Qh5 $16 31. Qa8 g5) 31. Qc7 $18 Kg7 {[#]} 32. Kg2 (32. h5 $142 $1 {[%mdl 512]} Qe2 (32... gxh5 33. Be4) 33. Qc3+ (33. Qxa5 Qxh5+ 34. Rh4 Qe2 $16) 33... f6 34. Qc7+ (34. Qxa5 Qxh5+ 35. Rh4 Qf5 $16) 34... Bf7 {[#]} 35. h6+ $1 {[%mdl 512]} Kg8 36. Bxf7+ Rxf7 37. Qb8+ Rf8 38. Qa7) 32... Qd2 $2 (32... h5 33. Kh2 Qe2 34. Qxa5 Qe5) 33. Qe5+ Kg8 34. h5 gxh5 35. Qg5+ Kh8 36. Qf6+ Kg8 37. Rf5 h6 38. Rxh5 {Accuracy: White = 80%, Black = 52%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.17"]
[White "Vasquez Schroeder, Rodrigo"]
[Black "Murali Krishnan B T"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2487"]
[BlackElo "2202"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,110,19,30,19,24,2,0,-4,0,0,0,0,-3,-12,-18,-21,-4,-32,-19,-19,-9,-23,-19,-29,-17,-22,0,-29,-35,-31,-26,-23,-29,-30,0,-15,-25,-22,-15,-33,0,0,0,0,0,4,10,0,0,0,0,0,0,0,-2,-5,-4,-4,-4,-5,-2,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Qc2 Nbd7 8. Bd3 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. Nge2 Nb6 12. h3 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2)} (12. O-O O-O 13. Rae1 Be6 14. Nc1 Rad8 15. Nb3 Rfe8 16. Nc5 Bc8 17. b4 Nc4 18. Qe2 Qg5 19. f4 Qh4 20. Bxc4 dxc4 {0-1 (37) Navara,D (2724)-Adams,M (2740) Biel 2015}) 12... Bd7 13. g4 Nf6 14. O-O-O O-O-O 15. Kb1 Kb8 16. Ng3 g6 17. Rhe1 Qd6 {[#]} 18. Nge2 $146 ({Predecessor:} 18. f4 Rde8 19. Qf2 h5 {1-0 (46) Chatalbashev,B (2537)-Lain,L (2164) Lido Estensi 2002}) 18... h5 19. f3 hxg4 20. hxg4 Rde8 21. Nc1 Rh2 22. Rd2 Rh3 23. Rf2 Nh7 24. Qd2 (24. Bf1 $5 {[%cal Rf1h3]} Rh1 25. Nd3 $11) 24... Ng5 25. Ref1 Qe7 26. Nd1 Qf6 {[%cal Rg5f3]} 27. Be2 Qe7 28. b3 f5 29. gxf5 Bxf5+ 30. Kb2 Ne6 31. Bd3 {The position is equal.} Rh4 32. Rh2 Reh8 33. Rfh1 Qf6 34. Bxf5 gxf5 35. Nd3 Rxh2 ({But not} 35... Nxd4 $2 36. exd4 Qxd4+ 37. Kc2 $18) 36. Rxh2 c5 37. Rxh8+ Qxh8 38. Ne5 f4 39. Ng6 fxe3 40. Nxh8 exd2 41. dxc5 Nxc5 $11 {[%mdl 4096] Endgame KNN-KNN} 42. Kc3 a5 43. Kxd2 d4 44. Nb2 Nd5 45. Nd3 b6 46. Nxc5 bxc5 {KN-KN} 47. Nf7 Kc7 48. Ne5 Nb6 49. a4 Kd6 50. f4 Nd5 51. Nc4+ Ke6 52. Nxa5 Nxf4 53. Nb7 Kd5 54. Na5 $1 Ng6 55. Nc4 Ne5 {Accuracy: White = 64%, Black = 77%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.18"]
[White "Rohith Krishna S"]
[Black "Lugovskoy, Maxim"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2289"]
[BlackElo "2453"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,111,27,34,-18,-20,-36,-10,-6,-14,-10,0,0,0,0,6,8,62,58,64,56,60,54,63,59,94,25,68,42,62,8,15,15,11,7,17,15,15,15,15,15,15,15,15,15,15,15,18,15,15,15,15,15,17,15,31,15,52,31,137,121,1090,141,6083,140,504,125,492,96,89,3,3,0,3,3,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. cxd5 exd5 6. Qc2 c6 7. Bf4 Be7 8. e3 O-O 9. Bd3 Re8 10. O-O Nf8 11. Ne5 {D35: Queen's Gambit Declined: Exchange Variation} (11. h3 $14) 11... Nh5 $11 (11... Be6 12. h3 N6d7 13. Rab1 Nxe5 14. Bxe5 Bd6 15. Bxd6 Qxd6 16. b4 Bd7 17. Ne2 {½-½ (41) Sedlak,N (2549)-Milov,V (2647) Ajaccio 2006}) 12. Bg3 Bd6 13. Nf3 Nxg3 14. hxg3 Bg4 15. e4 $146 ({Predecessor:} 15. Nh2 Bh5 16. Rae1 Bg6 17. Bxg6 Nxg6 18. f4 Ne7 {1-0 (45) Purenne,B (2006)-Duboue,P (2156) Caen 2011}) 15... dxe4 16. Bxe4 h5 17. d5 Bxf3 (17... Rc8 $11) 18. Bxf3 $14 h4 19. gxh4 $1 cxd5 20. Bxd5 Qxh4 {[%csl Gd6][%cal Rh4h2] [#]} 21. g3 Qh5 22. Qd1 (22. Kg2 $16) 22... Qg6 23. Be4 Qf6 24. Qf3 (24. Bxb7 $14 Rad8 25. Qf3) 24... Be5 $11 25. Bxb7 Rab8 26. Rab1 Red8 27. Qxf6 Bxf6 28. Bf3 Rd2 29. Ne4 Rdxb2 30. Nxf6+ gxf6 31. Rxb2 Rxb2 {[%mdl 4096] Endgame KRB-KRN} 32. Bd5 Rd2 33. Bb3 Ne6 34. Rd1 Rxd1+ 35. Bxd1 {KB-KN} Kf8 36. f4 Ke8 37. Kf2 Nd4 38. g4 f5 ({Black should play} 38... Ne6 $14) 39. Ke3 Nb5 $2 {[%mdl 8192]} (39... Ne6 $16) 40. g5 $2 (40. Ba4 $18) 40... f6 $2 {[%mdl 8192]} (40... Kf8 $16) 41. Bb3 $2 (41. Ba4 $18 a6 42. Bxb5+ axb5 43. g6) 41... Nd6 $2 {[%mdl 8192]} (41... fxg5 $16 42. fxg5 Kf8) 42. Bd5 $2 (42. gxf6 $18 {and the rest is easy. Threatens to win with Bd5.} Ne4 43. f7+ Kf8 44. Kd4) 42... Nc8 $2 {[%mdl 8192]} (42... Ke7 $16 {is more resistant.}) 43. Bc4 $2 (43. gxf6 $18 {has better winning chances. And now Kd4 would win.} Kd7 44. Kd4) 43... Nd6 $16 44. Bd3 (44. Be6 $16) 44... Kf7 $11 {The position is equal.} 45. gxf6 Kxf6 46. Kd4 Ne8 47. Kc5 Ng7 48. Kb5 Ne6 49. Bf1 Nxf4 50. Ka6 Nd5 51. a4 f4 52. Kxa7 f3 53. a5 {[#] Hoping for Kb7.} Ke5 54. Kb7 {a6 is the strong threat.} Nb4 55. a6 Nxa6 $1 56. Kxa6 {Accuracy: White = 36%, Black = 32%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.19"]
[White "Neelotpal, Das"]
[Black "Barath Kalyan M"]
[Result "1-0"]
[ECO "E50"]
[WhiteElo "2436"]
[BlackElo "2091"]
[Annotator "ChessBase"]
[PlyCount "107"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 1:30:30]} Nf6 {[%emt 1:30:30]} 2. c4 {[%emt 0:00:30]} e6 {[%emt 0:00:30]} 3. Nc3 {[%emt 0:00:30]} Bb4 {[%emt 0:00:30]} 4. e3 {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 5. Nf3 {[%emt 0:00:30]} Bxc3+ {[%emt 0:00:30]} 6. bxc3 {[%emt 0:00:30]} d6 {[%emt 0:00:30]} 7. Bd3 {[%emt 0:00:30]} Nc6 {[%emt 0:00:30]} 8. O-O {[%emt 0:00:30]} e5 {[%emt 0:00:30]} 9. Nd2 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 10. Bb2 {[%emt 0:00:30]} e4 {[%emt 0:00:30]} 11. Bc2 {[%emt 0:00:30]} Bg4 {[%emt 0:00:30]} 12. Qb1 {[%emt 0:00:30]} Rfe8 {[%emt 0:00:30]} 13. Ba3 {[%emt 0:00:30]} b6 {[%emt 0:00:30]} 14. Qb5 {[%emt 0:00:30]} Na5 {[%emt 0:00:30]} 15. Bb4 {[%emt 0:00:30]} Nb7 {[%emt 0:00:30]} 16. Qg5 {[%emt 0:00:30]} c5 {[%emt 0:00:30]} 17. Ba3 {[%emt 0:00:30]} Bd7 {[%emt 0:00:30]} 18. Rae1 {[%emt 0:00:30]} Bc6 {[%emt 0:00:30]} 19. Qg3 {[%emt 0:00:30]} Nh5 {[%emt 0:00:30]} 20. Qh3 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 21. f3 {[%emt 0:00:30]} d5 {[%emt 0:00:30]} 22. cxd5 {[%emt 0:00:30]} Bxd5 {[%emt 0:00:30]} 23. c4 {[%emt 0:00:30]} Be6 {[%emt 0:00:30]} 24. Qh4 {[%emt 0:00:30]} exf3 {[%emt 0:00:30]} 25. gxf3 {[%emt 0:00:30]} h6 {[%emt 0:00:30]} 26. Kh1 {[%emt 0:00:30]} Na5 {[%emt 0:00:30]} 27. Rg1 {[%emt 0:00:30]} Kh8 {[%emt 0:00:30]} 28. d5 {[%emt 0:00:30]} Nxc4 {[%emt 0:00:30]} 29. Qxc4 {[%emt 0:00:30]} Bxd5 {[%emt 0:00:30]} 30. Qf4 {[%emt 0:00:30]} Qe5 {[%emt 0:00:30]} 31. Qxe5 {[%emt 0:00:30]} Rxe5 {[%emt 0:00:30]} 32. Bb2 {[%emt 0:00:30]} Re6 {[%emt 0:00:30]} 33. e4 {[%emt 0:00:30]} Bxa2 {[%emt 0:00:30]} 34. Ra1 {[%emt 0:00:30]} Rd8 {[%emt 0:00:30]} 35. Rg2 {[%emt 0:00:30]} Red6 {[%emt 0:00:30]} 36. Nf1 {[%emt 0:00:30]} Bc4 {[%emt 0:00:30]} 37. e5 {[%emt 0:00:30]} Bxf1 {[%emt 0:00:30]} 38. Rxf1 {[%emt 0:00:30]} Rd2 {[%emt 0:00:30]} 39. exf6 {[%emt 0:00:30]} Rxg2 {[%emt 0:00:30]} 40. Kxg2 {[%emt 0:00:30]} Rd2+ {[%emt 0:00:30]} 41. Rf2 {[%emt 0:00:30]} Rxf2+ {[%emt 0:00:30]} 42. Kxf2 {[%emt 0:00:30]} g5 {[%emt 0:00:30]} 43. Bd3 {[%emt 0:00:30]} a5 {[%emt 0:00:30]} 44. Bb5 {[%emt 0:00:30]} Kh7 {[%emt 0:00:30]} 45. Ke3 {[%emt 0:00:30]} Kg6 {[%emt 0:00:30]} 46. Ke4 {[%emt 0:00:30]} h5 {[%emt 0:00:30]} 47. Ke5 {[%emt 0:00:30]} h4 {[%emt 0:00:30]} 48. h3 {[%emt 0:00:30]} Kh6 {[%emt 0:00:30]} 49. Kf5 {[%emt 0:00:30]} a4 {[%emt 0:00:30]} 50. Bc1 {[%emt 0:00:30]} a3 {[%emt 0:00:30]} 51. Bxa3 {[%emt 0:00:30]} c4 {[%emt 0:00:30]} 52. Bxc4 {[%emt 0:00:30]} b5 {[%emt 0:00:30]} 53. Bf8+ {[%emt 0:00:30]} Kh5 {[%emt 0:00:30]} 54. Bxf7# {[%emt 0:00:30]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.20"]
[Round "4.20"]
[White "Bakshi, Rutuja"]
[Black "Viani Antonio Dcunha"]
[Result "*"]
[WhiteElo "2118"]
[BlackElo "2417"]
[Annotator "ChessBase"]
[PlyCount "1"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c3 {[%emt 0:00:00]} *

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.1"]
[White "Das, Sayantan"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2424"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,140,13,16,16,19,0,25,25,24,29,25,28,54,50,40,-39,-14,-20,0,0,0,0,0,-16,-6,-24,-7,-7,-6,-10,-15,-20,-29,-47,-13,-18,-27,-27,-35,-32,-34,-26,-10,-10,-10,-10,-10,-10,-11,-11,22,31,36,0,0,0,0,0,0,0,14,17,32,0,0,0,0,0,0,0,0,0,10,1,8,-6,0,0,0,0,0,-18,-19,-21,-30,-159,-155,-148,-146,-752,-749,-929,-922,-904,-902,-894,-898,-762,-754,-935,-935,-1072,-1314,-1019,-935,-882,-874,-1337,-1141,-5620,-5202,-5591,-5193,-29974,-29975,-29974,-29975,-29971,-29972,-29979,-29980,-29980,-29981,-29980,-29981,-29980,-29981,-29980,-29981,-29982,-29983,-29980,-29978]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Be2 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} (6. Bc4 {with more complications.} Ngf6 7. a4 e5 8. Qe3 Qc7 9. Qe2) 6... Ngf6 7. O-O g6 8. Nc3 {White has an edge.} Bg7 9. Rd1 O-O 10. e5 dxe5 11. Nxe5 Qc7 12. f4 $146 (12. Bf4 $14 Nh5 13. Bxh5 (13. Nxg6 Qd8 $11) 13... Bxe5 14. Nd5) ({Predecessor:} 12. Bf4 Nh5 13. Bxh5 Bxe5 {1-0 (50) Artemiev,V (2682)-Can,E (2589) Minsk 2017}) 12... Nxe5 13. Qxe5 Ne8 14. Qxc7 Nxc7 15. Be3 Bf5 16. Rd2 b5 17. a3 Rac8 18. g4 Be6 19. Bd4 Bh6 20. g5 Bg7 21. Bf3 Bf5 22. Bxg7 Kxg7 23. Kf2 Ne6 24. Ke3 Rh8 25. Nd5 Rxc2 26. Rxc2 Bxc2 27. Rc1 Bb3 28. Rc3 Bc4 29. b3 Bf1 (29... Bxd5 $5 30. Bxd5 h6 $11) 30. Bg4 h6 31. Bxe6 (31. Kf2 {keeps more tension.} hxg5 32. Kxf1 Nxf4 33. Nxf4 gxf4 34. b4) 31... fxe6 $14 {[%mdl 4096] Endgame KRB-KRN} 32. Nc7 hxg5 33. Nxe6+ Kf6 34. Nxg5 Rxh2 35. Rc1 Rh1 {White should prevent ...Bg2.} 36. Rc6+ {[%mdl 1024] White has compensation.} Kf5 37. Kf3 Bd3 38. Rc5+ Kf6 39. Rc6+ Kg7 40. Rxa6 Rb1 41. b4 Bc4 42. Ra7 Bd5+ 43. Ke3 Kf6 44. Rd7 Bg2 45. Ra7 Rb3+ 46. Kf2 Bd5 47. Ra5 {[#]} (47. Rd7 $11 Bc4 48. Ne4+ Kf5 {[%mdl 64] Double Attack} 49. Nd2 Rxa3 50. Rxe7) 47... Kf5 $1 $17 48. Rxb5 e6 49. Ra5 $2 {[%mdl 8192]} (49. Nh7 $17) 49... Kxf4 $19 50. Nf7 Rb2+ 51. Ke1 Ke3 {[%cal Rb2b1] [#]} 52. Kd1 Be4 {[%cal Rb2b1]} 53. Rc5 Rf2 {[%cal Rf2f1]} 54. Rc3+ Bd3 {( -> ...Rf1#)} 55. Rxd3+ Kxd3 {[%cal Rf2f1] KR-KN} 56. Ne5+ Kd4 57. Nc6+ Kd5 58. b5 Kc5 59. a4 Rf4 60. Ne5 Rxa4 61. Nxg6 Kxb5 {Black mates.} 62. Nf8 Re4 63. Kd2 Kc4 64. Nh7 Rh4 65. Ng5 Kd5 66. Ke2 e5 67. Nf3 Ra4 68. Ng5 Ra3 69. Kf2 e4 70. Ke2 Rg3 {Accuracy: White = 46%, Black = 66%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.2"]
[White "Harshavardhan G B"]
[Black "Bogdanovich, Stanislav"]
[Result "1-0"]
[ECO "E33"]
[WhiteElo "2343"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,26,36,44,0,20,6,5,10,2,16,41,45,41,42,47,50,394,388,830]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. g4 {E33: Nimzo-Indian: Classical: 4...Nc6} (6. Bd2 Qe7 7. e3 a5 8. a3 Bxc3 9. Bxc3 e5 10. d5 Nb8 11. Nd2 O-O 12. b3 c6 13. dxc6 Nxc6 14. Bd3 Be6 15. O-O d5 16. cxd5 Bxd5 17. Rfd1 Rac8 {½-½ (17) Wagner,D (2580)-Nisipeanu,L (2670) Skopje 2019}) 6... d5 7. a3 $146 ({Predecessor:} 7. g5 Ne4 8. Bf4 Nxc3 9. bxc3 Bd6 10. Bd2 Na5 11. c5 Be7 12. e4 b6 13. cxb6 axb6 {0-1 (38) Harazinska,E (2140)-Cherednichenko,E (2166) Poronin 2014}) 7... Bxc3+ $1 8. Qxc3 {The position is equal.} Ne4 9. Qc2 e5 10. Bg2 Bxg4 ({But not} 10... exd4 $2 11. cxd5 Qxd5 12. Ng5 $18) 11. cxd5 Qxd5 12. Nxe5 Qxd4 $4 {[%mdl 8192] [#]} (12... Nxd4 $14 13. Qxe4 Nc2+ 14. Qxc2 Qxg2 15. Qa4+ {[%mdl 64] Double Attack} c6 16. Qxg4 (16. Rf1 $2 Bh3 $19) 16... Qxh1+ 17. Kd2 Rd8+ 18. Nd3 O-O) 13. Nxg4 $18 Qd5 $2 (13... f5 14. Bf4 O-O-O) 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.3"]
[White "Visakh N R"]
[Black "Khusenkhojaev, Muhammad"]
[Result "1-0"]
[ECO "D98"]
[WhiteElo "2518"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,61,34,18,20,0,0,0,0,0,0,0,71,67,57,74,65,47,47,41,38,48,52,41,107,102,130,65,97,100,87,89,103,91,95,92,239,231,300,302,448,440]} 1. c4 Nf6 2. d4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. O-O-O Nb6 10. Qc5 e5 11. d5 N8d7 12. Qa3 c6 $146 {D98: Grünfeld: Russian System: 7 e4 Bg4} ({Predecessor:} 12... f5 13. h3 Bxf3 14. gxf3 f4 15. Bd2 Qh4 16. Be1 Rfc8 17. d6 Bf8 18. Qb3+ Kh8 19. dxc7 Rxc7 20. Kb1 {0-1 (46) Wojtaszek,R (2622)-Vachier Lagrave,M (2577) Lausanne 2006}) 13. h3 (13. Kb1 {looks sharper.} Re8 14. dxc6 bxc6 15. h3 Bxf3 16. gxf3 Qh4 17. Ba6) 13... Bxf3 14. gxf3 cxd5 {The position is equal.} 15. Nxd5 Nxd5 16. Rxd5 Qc8+ (16... Qf6 $11 {keeps the balance.}) 17. Kb1 $16 Nb6 18. Rc5 Qe6 19. Qb3 Qxb3 20. axb3 Rfc8 21. Ra5 Rc6 22. Bb5 Rd6 (22... Re6 $14) 23. Rc1 a6 {[#]} 24. Be2 (24. Rc7 $1 $16) 24... Rc8 25. Rxc8+ Nxc8 {[#]} 26. Rc5 $1 $36 {[%cal Rc5c8][%mdl 2048] Keeping Black busy.} Rd8 27. Rc7 Nd6 28. Bc4 Rb8 (28... Kf8 $16) 29. Bd5 $18 b6 30. Rd7 Bf8 (30... Nb5 $142 31. Bxf7+ (31. Rxf7 Kh8 $18) 31... Kh8) 31. f4 {Accuracy: White = 71%, Black = 38%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.4"]
[White "Ponkratov, Pavel"]
[Black "Manik, Mikulas"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2622"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,87,36,26,0,0,0,-2,-5,-2,-36,-31,-51,-41,-67,-45,-82,-72,-111,-44,-50,-52,-37,-37,-20,-45,-140,0,0,0,-75,-79,-68,-39,-60,-19,-24,47,47,43,60,56,46,161,170,160,88,117,102,164,131,1024,1016,989,887,1409,375,375,213,368,437,437,439,439,437,435,437,395,413,374,379,343,335]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 d5 8. exd5 Nxd5 9. Nde2 Bb4 10. Bd2 {B81: Sicilian Scheveningen: Keres Attack} (10. Bg2 O-O 11. O-O Nxc3 12. Nxc3 Qc7 13. Qd4 Nc6 14. Bxc6 Bxc3 15. Qxc3 bxc6 16. Be3 e5 17. Rae1 Bd7 18. Bc5 {½-½ (62) Fedoseev,V (2665)-Kokarev,D (2636) Novosibirsk 2016}) 10... Nxc3 11. Nxc3 Bd7 12. Ne4 {The position is equal.} Qb6 13. c3 $146 ({Predecessor:} 13. Bg2 O-O 14. O-O Bc6 15. Be3 Qc7 16. g5 Nd7 {½-½ (41) Sferle,M (2500)-Munoz Moreno,F (2457) ICCF email 2008}) 13... Bc6 14. Qc2 Be7 15. Be3 Qa5 16. g5 Nd7 17. Bg2 O-O (17... O-O-O $17 18. O-O h6 19. gxh6 gxh6) 18. f4 $15 f5 19. Ng3 Rad8 20. Bxc6 bxc6 21. h4 {[#]} (21. O-O $15) 21... Nb6 (21... Ne5 $1 $17 {[%cal Re5d3][%mdl 512] Threatens to win with ...Nd3+.} 22. Qb3 (22. fxe5 $2 Qxe5 {[%mdl 64] Double Attack} 23. Qe2 Qxg3+ 24. Bf2 Qg2 $19) 22... Nd3+ 23. Kf1 Bc5) 22. b4 $1 $11 {[%cal Rb4a5]} Qa4 23. Rh2 (23. Qb3 $11 Qxb3 24. axb3) 23... Qxc2 $17 24. Rxc2 Nc4 25. Bd4 Na3 26. Re2 Bxb4 (26... Nb5 $11 27. a3 Kf7) 27. Bxg7 $1 $14 Kxg7 28. cxb4 Rd6 29. Rd1 Rfd8 (29... Rxd1+ $1 $14 30. Kxd1 Kf7) 30. Rxd6 $18 Rxd6 {[%mdl 4096] Endgame KRN-KRN} 31. Nh5+ (31. Rd2 $142 Nc4 32. Rxd6 Nxd6 33. Kf2) 31... Kf7 $16 32. Nf6 h6 (32... Rd4 $16) 33. Rg2 $18 Rd4 $2 {[%mdl 8192]} (33... Rd8 $16) 34. gxh6 {Black must now prevent h7.} Nc2+ {[#]} 35. Ke2 $1 (35. Rxc2 Kxf6 36. h7 (36. Rxc6 Rxf4 37. Rxa6 Re4+ 38. Kf2 Rxh4 $14) 36... Kg7 $14) 35... Rxf4 36. Nd7 $2 (36. h5 {Hoping for h7.} Kxf6 37. h7) 36... Rxh4 37. Rg7+ Ke8 38. h7 Nxb4 39. Nc5 Nxa2 ({Of course not} 39... Rh2+ 40. Kf3 $18) 40. Nxa6 ({Weaker is} 40. Rg8+ Ke7 $18) 40... Nc3+ 41. Kd3 Nd5 ({Worse is} 41... Rh3+ 42. Kd4 $18) 42. Rg8+ Ke7 43. h8=Q Rxh8 44. Rxh8 {Accuracy: White = 57%, Black = 49%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.5"]
[White "Goganov, Aleksey"]
[Black "Karthikeyan, P.."]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "2583"]
[BlackElo "2416"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,61,0,0,0,-16,-9,-8,-8,-16,-6,-18,0,-2,0,-9,16,0,0,0,0,0,0,0,0,0,0,-28,0,0,0,0,0,-38,-2,-2,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3 6. Qxc3 b6 7. g3 Bb7 8. Bg2 c5 9. O-O d5 10. cxd5 Nxd5 11. Qc2 Nc6 {A17: English Opening: 1...Nf6 with ...Bb4} 12. b3 Qe7 (12... e5 13. Bb2 Re8 14. e3 Nf6 15. d3 Qd7 16. Rfd1 Rad8 17. Rac1 h6 18. h3 Ba8 19. Bc3 {½-½ (43) Wojtaszek,R (2749)-Ponomariov,R (2709) Tallinn 2016}) 13. Bb2 Rac8 14. e3 Rfd8 15. Rfe1 h6 16. Rad1 Nf6 {[#]} 17. Qb1 $146 ({Predecessor:} 17. d3 Nb8 18. Qb1 Nbd7 19. e4 {½-½ (29) Van der Sterren,P (2555)-Dautov,R (2595) Germany 1998}) 17... b5 18. Rc1 Na5 19. Bc3 b4 20. axb4 cxb4 21. Bxf6 Qxf6 22. Rxc8 Rxc8 23. Nd4 Bxg2 24. Kxg2 e5 25. Nf3 Qe6 26. Qe4 (26. Qa2 $5 {[%cal Ra2a5]} Nc6 27. d3 $11) 26... Nxb3 {White must now prevent ...Nc1.} (26... Rb8 $5 {[%cal Ra5b3]}) 27. Qxb4 {The position is equal.} a5 28. Qb5 e4 29. Nd4 Nxd4 30. exd4 Rd8 31. Qxa5 {Accuracy: White = 57%, Black = 61%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.6"]
[White "David, Alberto"]
[Black "Ameir, Moheb"]
[Result "1/2-1/2"]
[ECO "A33"]
[WhiteElo "2562"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,75,10,9,-2,35,23,48,55,71,79,79,80,94,90,90,78,85,89,112,47,46,39,58,48,56,31,21,30,52,60,73,70,75,27,35,29,28,21,32,4,15,9,6,8,8,12,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 Qb6 7. Nf3 {A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6} (7. Ndb5 Ng4 8. e3 Nge5 9. Nd6+ Bxd6 10. Qxd6 Qb4 11. Qxb4 Nxb4 12. f4 Ned3+ 13. Ke2 d5 14. a3 Nc2 {½-½ (61) Ganguly,S (2633)-Nepomniachtchi,I (2771) Astana 2019}) 7... Ng4 8. e3 d6 $146 ({Predecessor:} 8... Nge5 9. b3 Qa5 10. Bd2 Bb4 11. Rc1 d5 12. Nxe5 Nxe5 13. f4 Nc6 14. a3 Bxa3 15. Nxd5 {1-0 (50) Ozturk,K (2291)-Guerrero Rodriguez,A (2089) Tromsoe 2014}) 9. Bg2 {White is slightly better.} Nge5 10. b3 Nxf3+ 11. Qxf3 Be7 12. O-O O-O 13. Bb2 Bd7 14. Rfd1 Ne5 15. Qe2 ({White should play} 15. Qxb7 $16 Qxb7 16. Bxb7) 15... Bc6 $14 16. Ne4 {[#] Hoping for c5!} Qc7 17. f4 Nd7 18. Qg4 {[%csl Gb2][%cal Rg4g7]} g6 {White must now prevent ...f5.} 19. Qe2 Bxe4 20. Bxe4 f5 21. Bg2 Bf6 22. Bxf6 Nxf6 23. Rd3 Rad8 24. Rad1 Rd7 25. Qd2 {[%cal Rd3d6]} Rfd8 {The position is equal.} 26. Qc3 Kf7 27. Qe1 Qc5 28. Rd4 h5 29. h3 a5 30. Kh2 b6 31. R4d3 d5 32. cxd5 Nxd5 33. Bxd5 Rxd5 34. Rxd5 Rxd5 35. Rxd5 Qxd5 $11 {KQ-KQ} 36. Qc3 Qf3 37. Qc7+ Kf6 38. Qd8+ {Accuracy: White = 70%, Black = 64%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.7"]
[White "Sundararajan, Kidambi"]
[Black "Yudin, Sergei"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2414"]
[BlackElo "2508"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,-7,0,-9,-11,0,0,-14,0,-24,-12,-23,-20,-21,-23,-20,-15,-2,-15,-9,-5,0,-6,-47,-39,-37,-35,-48,-8,-42,-34,-46,-44,-57,-57,-58,-58,-58,-60,-62,-60,-79,-73,-64,-69,-63,-58,-157,-164,-191,-174,-181,-177,-199,-195,-189,-195,-222,-183,-185,-178,-239,-241,-320,-318,-1242,-1212,-1823,-1814,-1825,-1743,-1787,-1645,-1682,-1677,-1211,-1620]} 1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 Nf6 5. O-O Bd6 6. Nc3 {A07: Réti Opening: New York and Capablanca Systems} d4 (6... h6 7. e4 d4 8. Ne2 Be6 9. c3 dxc3 10. bxc3 O-O 11. Qc2 Re8 12. Re1 Qd7 13. Bb2 Rad8 14. d4 Bc4 15. Nd2 Ba6 16. d5 Na5 17. c4 b6 18. Nc1 c6 19. Ncb3 Nb7 20. Rac1 {½-½ (20) Andriasian,Z (2628)-Hovhannisyan,R (2592) Martuni 2014}) 7. Nb5 Be7 8. a4 {The position is equal.} O-O 9. c3 a6 $146 ({Predecessor:} 9... Bg4 10. h3 Be6 11. Na3 Qd7 12. Kh2 Rfd8 13. Qc2 Bd5 {½-½ (30) Klempar,M (2265)-Pytlik,L (2000) Czech Republic 2000}) 10. Na3 dxc3 11. bxc3 e4 12. Nd4 Nxd4 13. cxd4 Qxd4 14. Be3 Qe5 {With the idea ...Qh5.} 15. dxe4 Nxe4 16. Bf4 Qe6 17. Qc2 Nc5 $36 {[%mdl 2048] Black is more active.} 18. Be3 Qg6 19. Qxg6 (19. Qc3 $5 {[%cal Re3c5]} Ne6 20. Nc4 $11) 19... hxg6 20. Nc4 a5 21. Rfb1 Be6 22. Bxc5 Bxc5 23. Rb5 b6 24. Bxa8 Bxc4 25. Rxc5 bxc5 $15 {[%mdl 4096] Endgame KRB-KRB} 26. Rc1 Bxe2 ({Much worse is} 26... Rxa8 $6 27. Rxc4 Re8 28. Rxc5 $11) 27. Bd5 {[#]} c6 $1 {[%cal Rc6d5]} 28. Bc4 (28. Bxc6 $15 Rc8 29. Bb5) 28... Bf3 $1 $17 29. Rc3 Bd1 30. Bb3 Rd8 $1 31. Kg2 Bxb3 32. Rxb3 $19 {KR-KR} c4 {[%cal Bc5c4,Bc4c3,Bc3c2][%mdl 32]} 33. Rb6 Rd6 34. Rb8+ Kh7 35. h4 (35. Kf3 $142) 35... c3 36. Rb3 Rd3 {Hoping for ...c2!} 37. Rb6 $2 {[#]} (37. Rb1) 37... c5 $1 {White must now prevent ...c2.Black is clearly winning.} 38. Rb5 {[#]} c4 $1 39. Rb1 c2 40. Rc1 Rd2 41. Kf3 Kg8 42. Ke3 c3 {Accuracy: White = 50%, Black = 89%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.8"]
[White "Karthik Venkataraman"]
[Black "Srihari L R"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2479"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,0,36,18,29,34,39,44,60,56,49,43,61,50,47,35,65,63,66,43,129,87,99,89,94,91,87,77,114,70,64,47,119,128,118,128,112,52,52,52,54,55,70,76,82,68,67,61,75,61,51,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8]} 1. e3 d6 2. g3 (2. d4 Nf6 3. Nc3 e5 {½-½ (3) Czarnota,P (2534)-Moranda,W (2597) Katowice 2019}) 2... e5 3. Bg2 h5 $146 ({Predecessor:} 3... Nc6 4. c3 Nf6 5. d3 g6 6. Nd2 Bg7 7. Qb3 Qd7 8. Ne2 O-O 9. d4 Re8 {0-1 (32) Halilaj,M-Pavlopoulos,A Ohrid 2017}) 4. h4 Bg4 5. Ne2 c6 6. d4 {A00: Irregular Openings} Nd7 7. c4 Nb6 8. Qc2 {White is slightly better.} Be7 9. b3 Nf6 10. Nbc3 a5 11. Bb2 a4 12. Rd1 a3 13. Ba1 Qc8 14. O-O Bh3 (14... O-O $14) 15. dxe5 dxe5 16. Ne4 {Hoping for Bxh3.} Bxg2 17. Kxg2 Ng4 18. Qd3 Qc7 19. c5 Nd7 20. b4 Ngf6 (20... b6 $14) 21. Nxf6+ $16 Nxf6 22. Qf5 Ng4 23. Qe4 (23. Rd3 $16) 23... Qc8 $1 $14 24. f3 Qf5 $1 {[%cal Rf5e4] [#] Threatens to win with ...Qxe4.} 25. Qd3 Rd8 26. Qxa3 {aiming for e4.} Qc2 27. Rxd8+ Bxd8 28. Re1 Qd2 {[%mdl 64] [#] Double Attack} 29. Qc3 Nxe3+ 30. Kg1 (30. Kf2 $14 Qxc3 31. Bxc3) 30... Qxc3 $1 $11 {The position is equal.} 31. Bxc3 f6 32. f4 O-O 33. fxe5 fxe5 34. Bxe5 Re8 35. Bc3 Nc2 36. Rd1 {Black must now prevent Nf4.} Bf6 37. Bxf6 {Rd2 is the strong threat.} Rxe2 {[%mdl 4096] Endgame KRB-KRN} 38. Rd8+ Kf7 39. Bg5 {And now Rd7+ would win.} Nxb4 40. Rd7+ Kg6 41. Rxb7 Nd3 42. Rc7 Kf5 43. Rd7 {Accuracy: White = 50%, Black = 66%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.9"]
[White "Priyanka, Kumari"]
[Black "Vishnu Prasanna. V"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1874"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,90,50,20,64,51,68,50,66,57,57,37,44,28,78,84,88,83,100,74,98,82,91,92,99,43,61,38,46,52,43,31,55,43,32,20,49,52,217,233,597,560,634,622,582,510,810,732,658,282,257,257,271,256,237,180,176,150,160,164,142,153,135,0,142,143,176,0,0,0,3,0,0,0,18,0,0,0,21,0,0]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 b5 6. f3 Nd7 7. h4 h6 {B06: Modern Defence} 8. Nh3 Nb6 9. h5 $146 ({Predecessor:} 9. O-O-O b4 10. Nd5 Nxd5 11. exd5 Bxh3 12. Rxh3 Nf6 13. Bc4 Qb8 14. g4 Qb7 15. Kb1 Nxd5 16. Bxd5 Qxd5 17. Qxb4 {0-1 (69) Kryvoruchko,Y (2689)-Petrosian,T (2601) Riadh 2017}) 9... g5 $1 {White is slightly better.} 10. Bd3 Nf6 11. Nf2 Nfd7 12. a4 b4 13. Ne2 {[#] aiming for a5.} a5 14. c3 bxc3 15. bxc3 Nf6 16. f4 gxf4 17. Bxf4 ({Much weaker is} 17. Nxf4 e5 $11) 17... Bd7 18. Bc2 (18. e5 $16 Nfd5 19. O-O) 18... e5 $14 {[%mdl 64] [#] Decoy} 19. dxe5 dxe5 20. Bxe5 Nc4 21. Qd4 Nxe5 22. Qxe5+ Qe7 23. Nd3 Be6 24. Nd4 $36 {[%mdl 2048] White has the initiative.} O-O $2 ({Black should play} 24... Qd6 $14) 25. Nf5 $18 Bxf5 $2 (25... Qd8 {is more resistant.}) 26. Qxe7 Rae8 27. Qxc7 ({Not} 27. exf5 Rxe7+ 28. Kf2 Ne4+ 29. Kg1 Bxc3 $17) 27... Rxe4+ 28. Kd2 Rg4 (28... Nd5 $142) 29. Nf4 Rc8 30. Bxf5 (30. Qxa5 $142 Bxc2 31. Kxc2 Rxf4 32. Rad1) 30... Rxc7 31. Bxg4 Nxg4 32. Ne2 Nf2 33. Rh4 Bf6 34. Rd4 Bxd4 35. cxd4 $16 {[%mdl 4096] Endgame KRN-KRN} Ne4+ 36. Kd3 Nf2+ 37. Kd2 Ne4+ $1 38. Ke3 Nf6 39. Nf4 $2 (39. Rc1 $18) 39... Rc3+ $11 {The position is equal.} 40. Ke2 Kf8 41. Kd2 Ne4+ 42. Ke2 Nd6 43. Kd2 Rg3 44. Ke2 Rc3 45. Kd2 Ne4+ {Accuracy: White = 48%, Black = 54%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.10"]
[White "Lakshmi Narayanan M V"]
[Black "Taher, Yoseph Theolifus"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2162"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,64,52,38,56,42,58,56,42,42,59,56,83,75,61,79,166,155,141,155,154,106,91,72,93,87,82,79,84,82,85,82,70,56,67,34,53,0,0,-20,-4,-14,-10,-148,-125,-245,-261,-414,-419,-1726,-1738,-29978,-29979,-29978,-10665]} 1. d4 c5 2. d5 Nf6 3. Nc3 d6 4. e4 g6 5. f4 Bg7 6. Bb5+ Nfd7 7. a4 Na6 {A43: Schmid Benoni} 8. Nf3 Nc7 9. Bd3 (9. Bc4 Rb8 10. O-O b6 11. e5 O-O 12. Ne4 Ba6 13. Bxa6 Nxa6 14. e6 fxe6 15. Neg5 {1-0 (37) Aronian,L (2783)-Zvjaginsev,V (2656) Mainz 2010}) 9... O-O {White is slightly better.} 10. O-O Nf6 11. Qe1 Bg4 12. Nd2 $146 ({Predecessor:} 12. Qg3 Bc8 13. f5 Nce8 14. Qh4 Qc7 15. Nb5 Qd8 16. c4 b6 17. Ng5 a6 18. Nc3 {1-0 (28) Seyb,A (2340)-Hiemer,B (2012) Wunsiedel 2013}) 12... Bd7 13. Nc4 b5 (13... e6 $16 {keeps fighting.}) 14. axb5 $18 Nxb5 15. e5 Ng4 16. Nxb5 Bxb5 17. h3 Nh6 18. e6 fxe6 19. Qxe6+ Kh8 20. g4 Ng8 21. Qe2 Nf6 22. Na5 Bxd3 23. Qxd3 Qd7 24. f5 ({White should play} 24. Nc4 $14) 24... gxf5 $11 25. Rxf5 e6 26. dxe6 Qxe6 {[#] And now ...Nxg4! would win.} 27. Bf4 (27. Be3 $11 {remains equal.}) 27... Ne4 $17 28. Re1 (28. Rxf8+ $17 {was called for.} Rxf8 29. Rf1) 28... d5 $1 $19 29. c4 (29. Rxf8+ $142 Rxf8 30. Rf1) 29... Rxf5 30. gxf5 (30. cxd5 $142 Bd4+ 31. Kh2) 30... Qxf5 31. Qxd5 Bd4+ 32. Be3 Rg8+ {Accuracy: White = 36%, Black = 58%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.11"]
[White "Neverov, Valeriy"]
[Black "Pranav Vijay"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2460"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,98,0,0,0,-6,0,-16,22,2,-10,16,53,51,43,42,81,59,78,46,53,54,54,56,99,94,73,60,58,54,46,41,29,32,35,37,29,49,23,16,54,61,79,68,89,95,300,64,60,56,61,47,57,69,72,0,0,0,0,0,0,-65,-101,-91,-47,-111,-61,-29986,-29987,-29986,-29987,-29989,-29977,-29976,-29978,-29974,-1452]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 6. Nc3 c5 7. e4 cxd4 8. Nxd4 Bc5 9. Nb3 Nc6 10. Bg5 h6 11. Bh4 Nd4 12. Nxd4 Bxd4 13. Bd3 Be5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7 .} 14. O-O-O {[#]} Rc8 $146 ({Predecessor:} 14... Qc7 15. Bg3 a6 16. Kb1 O-O 17. Qe2 Rac8 18. Rhe1 d6 19. Bxe5 dxe5 20. Qe3 Nd7 21. Rd2 {½-½ (41) Bauer,C (2641)-Zhigalko,S (2677) Bilbao 2014}) 15. Rhe1 a6 {The position is equal.} 16. Bg3 Bxg3 17. hxg3 e5 18. Kb1 O-O 19. f3 d6 20. Qd2 Qe7 21. Bf1 Rfd8 22. g4 Rc7 23. Re3 Nh7 24. Na4 Rc6 25. Rb3 Qc7 26. Qe3 {[%cal Ra4b6]} Rb8 $1 27. Ka2 {[%cal Ra4b6]} Bc8 28. Nc3 Be6 29. Nd5 Bxd5 30. exd5 Rc5 $1 31. Rc3 Qe7 32. f4 Nf6 33. g5 hxg5 34. fxg5 Ng4 $2 (34... Nh7 $16) 35. Qd2 $2 (35. Qh3 $1 $18 {[%cal Rh3g4]} Qxg5 36. Rg3) 35... b5 $14 36. cxb5 {aiming for Rxc5.} Rxc3 37. Qxc3 axb5 {[#]} 38. g6 $1 {[%mdl 512]} fxg6 {[#]} 39. Qg3 (39. Bxb5 $1 $16 {[%mdl 512]} Qa7 (39... Rxb5 40. Qc8+) 40. Bd3) 39... Nf6 $11 40. Qxg6 b4 41. a4 Qa7 42. b3 (42. Kb3 $1 $11) 42... Qf2+ $15 43. Ka1 e4 {Threatens to win with ...Rc8.} 44. Bc4 (44. Rc1 $1 $15) 44... Rc8 $36 {[%mdl 2048] ( -> ...Rxc4!). Black has some pressure.} 45. Rf1 $2 {[%mdl 8192]} (45. Rc1 $15) 45... Qd4+ $1 {[%mdl 64] Double Attack. Black mates.} 46. Kb1 Rxc4 47. Qf5 Qd3+ 48. Ka1 Qc3+ 49. Ka2 Rc7 {Accuracy: White = 70%, Black = 69%.} (49... Qd2+ $142 50. Kb1 Qd3+ 51. Ka1 Qd4+ 52. Kb1 Rc3 53. Qe6+ {[#]} Kh7 $1 {[%mdl 512]} 54. Qf5+ g6 55. Qh3+ Rxh3 56. gxh3 Qd3+ $1 {[%mdl 576] Double Attack} 57. Kc1 Qxf1+ 58. Kc2 e3 59. h4 e2 60. h5 e1=Q 61. hxg6+ Kxg6 62. Kb2 Qg2#) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.12"]
[White "Satkar, Chirag"]
[Black "Neelotpal, Das"]
[Result "0-1"]
[ECO "E36"]
[WhiteElo "2066"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,40,0,-5,0,-7,-8,-20,-29,-27,0,0,6,6,14,9,0,0,0,0,0,0,0,0,23,0,12,-445,-442,-443,-435]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 c5 {E36: Nimzo-Indian: Classical: 4...d5 5 a3} (7... dxc4 8. Qxc4 b6 9. Rd1 Ba6 10. Qa4 h6 11. Bh4 Qd7 12. Qc2 Nd5 13. Nf3 Rc8 14. Ne5 Qe8 15. e4 Bxf1 16. Kxf1 Ne7 17. Bxe7 Qxe7 18. g3 c5 19. Kg2 Nc6 20. Nxc6 Rxc6 21. d5 Rd6 22. Rd2 {½-½ (22) Mamedyarov,S (2772)-Jakovenko,D (2698) Jerusalem 2019}) 8. e3 cxd4 9. exd4 dxc4 {The position is equal.} 10. Bxc4 Nbd7 11. Nf3 b6 12. O-O Bb7 13. Qe3 $146 ({Predecessor:} 13. Ne5 Qc7 14. Bf4 Nxe5 15. Bxe5 {½-½ (49) Lu,A (2037)-Viswanadha,K (1987) Los Angeles 2012}) 13... h6 14. Bh4 Rc8 $36 {[%mdl 2048] Black is pushing.} 15. Rfc1 a6 16. a4 Qe7 17. Ne5 Qb4 {aiming for ...Nxe5.} 18. Nd3 Qa5 {Strongly threatening ...Rxc4!} 19. Bg3 $2 {[%mdl 8192] [#]} (19. f3 $11 {and White is okay.}) 19... Rxc4 $1 $19 {[%mdl 576] Remove Defender} 20. Rxc4 {[#] And now Rc7 would win.} Qd5 $1 {[%csl LRc4,LRg2][%mdl 576] Double Attack. Accuracy: White = 45%, Black = 54%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.13"]
[White "Viani Antonio Dcunha"]
[Black "Jubin Jimmy"]
[Result "*"]
[ECO "B15"]
[WhiteElo "2417"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,74,17,19,19,21,17,12,10,0,4,4,6,0,2,-42,-20,-30,-19,-39,-29,-67,-59,-62,-55,-77,-74,-74,-70,-88,-22,-27,-19,-22,-10,-7,-12,-10,-7,-18,-8,-30,0,-12,0,-35,0,-16,0,-20,0,-10,0,-28,0,0,195,-779,-96,-119,-93]} 1. e4 c6 2. Nc3 d5 3. Nf3 g6 4. d4 Bg7 5. h3 dxe4 6. Nxe4 Nf6 7. Nxf6+ exf6 8. Bc4 O-O 9. O-O a5 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6} 10. a4 Na6 11. d5 $146 ({Predecessor:} 11. c3 Nc7 12. Bf4 Nd5 13. Bh2 Be6 14. Nd2 f5 15. Bb3 h5 16. Re1 Bh6 17. Be5 {0-1 (50) Karthikeyan,M (2574)-Wei,Y (2748) Ashkhabad 2017}) 11... cxd5 {The position is equal.} 12. Bxd5 Nb4 13. Bb3 Bf5 14. Bd2 Be4 15. Ne1 f5 16. c3 $1 {[%cal Rc3b4]} Na6 $36 {[%mdl 2048] Black is pushing.} 17. Be3 Qc7 18. Bc2 Rad8 19. Qe2 Bd5 {And now ...Rfe8 would win.} 20. Bg5 Rd7 21. Rd1 h6 22. Bc1 Rfd8 (22... Bc4 $17 23. Bd3 Rfd8) 23. Nf3 $11 Nc5 24. Rfe1 Be4 25. Be3 Nd3 26. Bxd3 $1 Bxd3 27. Qd2 Be4 28. Qe2 Bd3 29. Qd2 Be4 30. Qe2 Bd3 31. Qd2 Be4 32. Qe2 Bd3 33. Qd2 Be4 34. Qe2 Qc6 35. Nd4 Qxa4 $2 {[#]} (35... Bxd4 $11 {and Black has nothing to worry.} 36. Rxd4 Bxg2) 36. Nf3 $4 {[%mdl 8192]} (36. Ra1 $18 Rxd4 37. Bxd4) 36... Qc6 $2 (36... Rxd1 $19 37. Nd4 Rxe1+ 38. Qxe1 Re8) 37. Ra1 Qc7 {Accuracy: White = 58%, Black = 38%.} *

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.14"]
[White "Aleksandrov, Aleksej"]
[Black "Mahindrakar Indrajeet"]
[Result "*"]
[WhiteElo "2592"]
[BlackElo "2066"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,16,29,66,58,108]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 e5 7. d5 Ne8 8. g4 {E71: King's Indian: 4 e4 d6 5 h3} f5 {Predecessor:} 9. gxf5 $146 gxf5 10. exf5 Bxf5 11. Nf3 Qf6 12. Rg1 Kh8 13. Ng5 Nd7 14. Nge4 Qf7 15. Bd3 Nc5 16. Nxc5 dxc5 17. Bxf5 Qxf5 {1-0 (46) Kavutskiy,K (2417)-Agrest,I (2320) San Francisco 2019} *

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.15"]
[White "Ziatdinov, Raset"]
[Black "Mchedlishvili, Mikheil"]
[Result "1/2-1/2"]
[ECO "B96"]
[WhiteElo "2203"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,101,29,21,48,26,24,24,22,18,33,47,69,47,61,-14,0,-29,-22,-36,0,-23,0,-66,0,0,0,-94,-24,-8,-7,-28,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-22,0,0,0,0,0,0,0,0,0,0,0,-43,0,0,264,0,0,0,20,0,0,0,0,0,202,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qe2 Qc7 9. O-O-O Be7 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7} 10. g4 b5 11. Bxf6 Nxf6 {White has an edge.} 12. Bg2 Bb7 13. a3 Rc8 {[#]} 14. Rhe1 $146 ({Predecessor:} 14. g5 Nd7 15. h4 Qc4 16. Qe1 b4 17. axb4 Qxb4 {½-½ (89) Naiditsch,A (2700)-Spoelman,W (2512) Deizisau 2009}) 14... O-O 15. Rd3 (15. g5 $14) 15... Nd7 $11 16. g5 g6 17. Rh3 Rfe8 18. Qg4 Nf8 $1 19. Rd1 (19. Kb1 $11) 19... Qb6 ({Black should play} 19... e5 $15 20. Nde2 Ne6) 20. f5 {[%cal Rf5e6]} Rc4 21. fxe6 (21. Nxe6 $11 {remains equal.} fxe6 22. fxg6) 21... fxe6 (21... Rxd4 $17 22. exf7+ Kxf7 23. Rf1+ Kg8) 22. Rhd3 b4 23. axb4 Rxb4 24. h4 $1 Rxb2 {[#] And now ...Rc8 would win.} 25. Rf1 $1 Rb4 26. Qf4 Kh8 27. Qf7 Bc6 28. Nxc6 Qxc6 29. e5 $1 $132 {[%mdl 2048] White is not holding back} Qxg2 30. exd6 Rb7 31. dxe7 Rbxe7 32. Qf6+ Kg8 33. Rdf3 {Ne4 is the strong threat.} Qg4 34. Rf4 Qg3 35. Qe5 {Threatens to win with Rxf8+!} Rf7 {[%mdl 64] [#] Pin} 36. Ne4 Qa3+ 37. Kd2 Rxf4 $4 {[%mdl 8192]} (37... Nd7 $1 $11 {and Black is okay.} 38. Qc7 Rfe7) 38. Qxf4 $2 ({White has to play} 38. Rxf4 $18 {Threatening mate with Nf6+.} Rd8+ 39. Ke2) 38... Rd8+ 39. Ke2 {Intending Qf7+ and mate.} Qb2 40. Nf6+ Kh8 41. Qc7 $1 {[%cal Rc7d8]} Qb5+ 42. Ke3 Qb8 $2 (42... Qxf1 $11 43. Qxd8 Qe1+ 44. Kf3 Qc3+ 45. Kg4 Qb4+ 46. Kf3 Qc3+ 47. Kg4 Qc5) 43. Qf7 $2 (43. Qxb8 $18 Rxb8 44. c4) 43... Qg3+ {The position is equal.} 44. Ke2 {[%csl Gf6][%cal Rf7g8]} Qe5+ 45. Kf3 {[%csl Gf6][%cal Rf7g8]} Qc3+ 46. Kg4 {[%csl Gf6][%cal Rf7g8]} Rd4+ 47. Rf4 Rxf4+ 48. Kxf4 {[%cal Rf7f8]} Qd4+ 49. Kf3 {[%cal Rf7f8]} Qc3+ 50. Kg4 {[%cal Rf7f8]} Qd4+ 51. Kf3 {Accuracy: White = 54%, Black = 62%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.16"]
[White "Murali Krishnan B T"]
[Black "Fedorov, Alexei"]
[Result "0-1"]
[ECO "E83"]
[WhiteElo "2202"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,74,39,48,12,36,30,42,20,39,27,26,35,21,31,55,0,0,0,4,0,0,0,0,0,0,0,34,0,0,0,13,11,40,22,23,23,25,14,11,0,0,0,0,0,0,-97,-108,-105,-86,-397,-395,-738,-671,-1343,100,-29981,-29982,-29982,-29976,-29978,-6048]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 a6 7. Be3 Nc6 8. Qd2 Bd7 9. O-O-O {E83: King's Indian: Sämisch Panno (6...Nc6): Lines without either Nge2 or Qd2} (9. g4 b5 10. h4 h5 11. g5 Ne8 12. cxb5 Na5 13. bxa6 Nc4 14. Qc1 Nxe3 15. Qxe3 c6 16. f4 Qb6 {1-0 (32) Duda,J (2758)-Guseinov,G (2666) Moscow 2019}) 9... b5 10. Bh6 Bxh6 11. Qxh6 {White is slightly better.} e5 12. h4 exd4 $146 ({Predecessor:} 12... bxc4 13. h5 Qe7 14. g4 Bxg4 15. fxg4 Nxg4 16. Qd2 Nf2 {1-0 (26) Gupta,A (2643)-Smirin,I (2657) New Delhi 2012}) 13. Nxd4 Nxd4 14. Rxd4 {[%cal Rc4b5]} Nh5 15. Qg5 (15. g4 $14 Qf6 16. Qe3) 15... Be6 $11 16. cxb5 f6 17. Qd2 Ng3 18. Rg1 Nxf1 19. Rxf1 axb5 20. a3 Bc4 21. Rd1 Qe7 22. Nd5 Qf7 23. Qc3 Ra4 {Strongly threatening ...c5.} 24. Ne3 Be6 25. Rxa4 bxa4 26. Rd4 Bb3 27. Kd2 Qe7 {Black wants to play ...c5.} 28. Nd5 Qe5 29. Rb4 Qg3 30. Ne3 (30. Nxf6+ $11 {remains equal.} Kf7 31. Rxb3 (31. Nxh7 Qxg2+ 32. Ke3 Qg1+ 33. Kd3 Qd1+ 34. Ke3 Qg1+ 35. Ke2 Qg2+ 36. Ke3 Qg1+ $11) 31... axb3 32. Nxh7 Qxg2+ 33. Ke3 Qg1+ 34. Kd3 Qd1+ 35. Ke3 Qg1+ 36. Kf4 Qh2+ 37. Ke3 Qg1+) 30... Qf2+ $17 ({But not} 30... Qxh4 $6 31. Qxc7 Qf2+ 32. Kd3 $11) 31. Kd3 c5 $1 $36 {[%cal Rc5b4][%mdl 2048] Black is really pushing.} 32. Rb7 $2 {[%mdl 8192]} (32. Rb6 $17 {is a better chance.}) 32... d5 $1 $19 {[%cal Rd5d4]} 33. Qxc5 $2 (33. Qd2 dxe4+ 34. Kc3 Qxh4 35. Rxb3 axb3 36. Qd5+ Kg7 37. Qb7+ Rf7 38. Qxe4 Qxe4 39. fxe4) 33... dxe4+ 34. Kc3 {With the idea Rg7+!} exf3 $2 {[#]} (34... Qe1+ $19 35. Kd4 Rd8+ 36. Kxe4 Bc2+ $1 {[%mdl 576] Deflection} 37. Qxc2 f5+ 38. Kf4 Rd4+ 39. Qe4 Qxh4+ 40. g4 fxe4 41. Rb8+ Kf7 42. Rb7+ Kf8) 35. h5 $2 {[%mdl 8192]} (35. Rg7+ $1 $16 {[%mdl 512]} Kxg7 36. Nf5+ $1 {[%mdl 576] Discovered Attack} gxf5 37. Qxf2) 35... Qe1+ {Black mates.} 36. Kd4 fxg2 37. Qe7 Bf7 {Accuracy: White = 31%, Black = 69%.} (37... Qd2+ $142 38. Kc5 Qa5+ 39. Kd6 Rd8+ 40. Kc6 Rc8+ 41. Rc7 Qa6+ 42. Kc5 Rxc7+ 43. Qxc7 g1=Q 44. Qb8+ {[#]} Kg7 $1 {[%mdl 512]} 45. Qc7+ Kh6 $1 {[%mdl 512]} 46. Qf4+ Kxh5 47. Qf3+ Kh6 48. Qh3+ Kg7 49. Qd7+ Bf7 50. Qh3 Qc1+ 51. Kd4 Qxb2+ {[%mdl 64] Double Attack} 52. Ke4 Bd5+ $1 {[%mdl 512]} 53. Nxd5 Qae2+ 54. Qe3 Qe5#) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.16"]
[White "Murali Krishnan B T"]
[Black "Fedorov, Alexei"]
[Result "*"]
[WhiteElo "2202"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,19,43,42,26,31,33]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 a6 7. Be3 Nc6 8. Qd2 Bd7 9. O-O-O {E83: King's Indian: Sämisch Panno (6...Nc6): Lines without either Nge2 or Qd2} (9. g4 b5 10. h4 h5 11. g5 Ne8 12. cxb5 Na5 13. bxa6 Nc4 14. Qc1 Nxe3 15. Qxe3 c6 16. f4 Qb6 {1-0 (32) Duda,J (2758)-Guseinov,G (2666) Moscow 2019}) 9... b5 10. Bh6 {Predecessor:} bxc4 $146 11. h4 e6 12. h5 Qe7 13. Bxg7 Kxg7 14. hxg6 fxg6 15. Qh6+ Kg8 16. Nf4 Rab8 {0-1 (33) Vragoteris,A (2317)-Georgiev,K (2452) Kallithea 2008} *

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.17"]
[White "Stupak, Kirill"]
[Black "Zia, Tahsin Tajwar"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2506"]
[BlackElo "2177"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,10,38,0,0,0,0,0,0,0,16,8,19,4,14,0,10,13,55,50,43,52,65,31,34,27,84,84,74,57,58,33,48,40,102,101,102,101,107,81,81,91,89,95,99,56,56,58,60,20,20,18,52,54,66,40,99,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,39,15,15,15,15,15,40,40,40,15,15,0,0,0,0,0,8,8,14,8,64,64,136,136,196,196,196,196,862,841,638,599,5057,4932,5140,1152,4757,4630,4622,4622]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Bb4+ 5. Nbd2 h6 (5... dxc4 6. e4 Bxd2+ 7. Nxd2 Qxd4 8. Qc2 Nc6 9. Bxc4 h6 10. Be3 Qd6 11. Bb5 Bd7 12. O-O-O Nb4 13. Bxd7+ Nxd7 {½-½ (56) Mamedyarov,S (2817)-Harikrishna,P (2729) Kolkata 2018}) 6. Bh4 {D30: Queen's Gambit Declined: Systems without Nc3} dxc4 7. e3 b5 8. a3 {The position is equal.} Bxd2+ 9. Nxd2 a6 10. Be2 $146 ({Predecessor:} 10. b3 cxb3 11. Nxb3 Nbd7 12. Rc1 Bb7 13. f3 Bd5 {½-½ (43) Otspere,U (2209)-Grebenshchikov,A (2302) ICCF email 2013}) 10... Bb7 11. O-O Nbd7 12. b3 c3 13. Nb1 g5 14. Bg3 Ne4 15. Bf3 Nxg3 16. hxg3 (16. fxg3 {is interesting.} c2 17. Qxc2 Bxf3 18. gxf3 O-O 19. Qc6) 16... Bxf3 17. Qxf3 O-O (17... c5 $11) 18. Nxc3 $16 c5 19. dxc5 Nxc5 20. Rfd1 (20. Rad1 $5 {[%cal Rd1d8]} Qe7 21. b4 $11) 20... Qe7 21. b4 Na4 (21... Nd7 $14) 22. Nxa4 bxa4 {[#]} 23. Qc6 $1 a5 24. Qxa4 axb4 25. Qxb4 Qf6 26. a4 Rfb8 27. Qd4 (27. Qe4 {is more complex.} Ra5 28. Rab1 Rba8 29. Rb4 h5 30. Qc6) 27... Qxd4 28. Rxd4 $14 {[%mdl 4096] Endgame KRR-KRR} Ra5 29. g4 Rb2 30. Rc1 e5 31. Rd8+ Kg7 32. Rc4 Ra2 {[#]} (32... Ra6 $14) 33. Rd7 (33. Rcc8 $1 $16) 33... Ra6 $11 34. f3 R2xa4 35. Rcc7 Rf6 36. Re7 e4 37. Rxe4 Rxe4 38. fxe4 {KR-KR} Re6 39. Rc4 Kf6 40. Kf2 Ke5 41. Kf3 Rf6+ 42. Ke2 Ra6 43. Rc7 f6 44. Re7+ Kd6 45. Re8 Ra1 46. e5+ fxe5 47. Kf3 Rf1+ 48. Ke4 Rg1 49. Rh8 Rh1 50. Ra8 Rh4 (50... Rh2 $11) 51. Ra6+ Kc5 ({Black should play} 51... Kd7 $14) 52. Kf5 $16 ({Don't take} 52. Kxe5 $6 Rxg4 53. Ra2 Kc6 $14) 52... e4 (52... Rh2 $16 {keeps fighting.} 53. Ra2 (53. Kxe5 Rxg2 54. Rxh6 Rxg4 $11) 53... Kd5 54. Rd2+ Kc6) 53. Re6 $18 Rh2 54. Re5+ ({And not} 54. Rxe4 Rxg2 55. Re5+ Kb4 $16) 54... Kc4 $2 (54... Kd6) 55. Rxe4+ {White is clearly winning.} Kd3 56. Re6 Rxg2 57. Rxh6 Kxe3 58. Re6+ Kf3 59. Ra6 {Ra3+ would kill now.} Ke3 60. Ra4 {Accuracy: White = 71%, Black = 42%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.18"]
[White "Balkishan, A.."]
[Black "Vasquez Schroeder, Rodrigo"]
[Result "0-1"]
[ECO "C19"]
[WhiteElo "2079"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,90,0,-6,-20,-20,-22,-13,-21,-22,-35,-33,-33,-7,-29,-10,-70,-70,-126,-124,-129,-116,-124,-118,-139,-128,-138,-108,-116,-111,-114,-115,-164,-162,-195,-151,-170,-151,-132,-42,-39,-15,-198,-148,-147,-161,-206,-89,-403,-212,-247,-261,-239,-236,-239,-198,-218,-227,-422,-250,-670,-637,-933,-925,-860,-853,-29969,-29966,-6311,-3003,-29985,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 b6 8. h4 {C19: French: 3 Nc3 Bb4: Main line: 7 Nf3 and 7 a4.} Ba6 9. Bd3 h6 10. a4 {[#] The position is equal.} Qc7 $146 ({Predecessor:} 10... Bxd3 11. Qxd3 Qd7 12. Qb5 Qxb5 13. axb5 a5 14. bxa6 Rxa6 15. Rxa6 Nxa6 16. Bd2 Kd7 {0-1 (34) Alves,F (1651)-Garcia Dorado,A (2223) Lisbon 2019}) 11. Rb1 Bxd3 12. cxd3 cxd4 13. cxd4 Nbc6 {[%cal Bb8c6,Bc6d4,Bd4f3][%mdl 32]} 14. Ba3 {[#]} ({White should try} 14. Qd2 $11) 14... Nxe5 {Played: Nc6xd4} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "5.19"]
[White "Vignesh N R"]
[Black "Kiran, Manisha Mohanty"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2472"]
[BlackElo "2133"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,70,5,22,25,53,53,68,59,58,43,68,52,46,38,38,38,60,68,75,38,67,75,64,64,56,72,76,70,76,79,91,68,75,40,39,10,39,33,66,0,0,0,-14,-38,-23,-21,-24,-57,-34,-25,-18,-97,0,0,-8,-513,-518]} 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 4. O-O Nf6 5. d3 e6 6. Re1 Be7 7. c3 O-O 8. Bb3 e5 9. h3 {B50: Sicilian: 2...d6, Miscellaneous} (9. Nbd2 b5 10. a4 b4 11. Nc4 Rb8 12. Bg5 Be6 13. Rb1 Nd7 14. Bxe7 Qxe7 15. Nfd2 Nf6 16. a5 Qc7 {½-½ (49) Artemiev,V (2697)-Nepomniachtchi,I (2751) Moscow 2018}) 9... h6 10. d4 cxd4 11. cxd4 {White is slightly better.} Nh7 $146 ({Predecessor:} 11... Bd7 12. Nc3 Rc8 13. Be3 a6 14. Rc1 Re8 {½-½ (14) Papin,V (2164)-Averjanov,A (2417) Serpukhov 2002}) 12. Bd5 Bf6 {[%cal Re5d4]} 13. Bxc6 bxc6 14. dxe5 dxe5 15. Qc2 Bd7 16. Rd1 Qc8 17. Qc3 Re8 18. Na3 Be6 19. Nc4 ({Don't go for} 19. Nxe5 $2 Bxe5 20. Qxe5 Bg4 $19) 19... Bxc4 20. Qxc4 Nf8 21. Be3 Ne6 22. Rac1 Qb7 23. b3 Rac8 24. Rd6 {[%cal Rd6c6]} c5 25. Qd5 Qb5 26. Nd2 ({Don't play} 26. Nxe5 Bxe5 27. Qxe5 Nd4 $15) 26... Qe2 27. Nc4 (27. Qc4 $14 Qh5 28. Nf1) 27... Qxa2 $11 28. Qd1 Rb8 $1 29. Nd2 Rbd8 30. Rd5 {[#] Strongly threatening Ra1.} Qa6 31. Nc4 Nd4 32. Rxc5 Qb7 33. Bxd4 (33. Nd2 $11) 33... Rxd4 (33... exd4 $17 34. e5 Be7) 34. Qc2 Red8 35. Re1 $2 {[%mdl 8192] [#]} (35. Nxe5 $11 Rd2 36. Qb1) 35... Qb4 $1 {[%csl LRc5,LRe1][%mdl 64] Double Attack. Accuracy: White = 46%, Black = 48%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.1"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Visakh N R"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2606"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,114,22,45,0,0,0,0,0,0,0,0,16,0,0,12,0,29,28,37,39,36,40,41,32,33,31,33,31,42,30,27,22,48,24,104,94,89,91,157,175,154,27,0,0,0,0,56,52,97,93,103,99,117,115,243,6,6,6,6,6,6,6,6,9,40,50,80,80,80,80,80,43,41,41,41,41,49,49,80,80,80,80,80,80,80,22,26,26,26,0,26,26,26]} 1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O Nbd7 11. g4 b5 12. g5 b4 13. gxf6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (13. Ne2 {with more complications.} Nh5 14. Ng3 Nf4 15. h4 a5 16. Bxf4 a4 17. Nd4) (13. Ne2 Nh5 14. Ng3 Nf4 15. h4 a5 16. Kb1 a4 17. Nc1 b3 18. cxb3 axb3 19. a3 Qc7 20. Bxf4 exf4 {1-0 (49) Dominguez Perez,L (2763)-Vachier Lagrave,M (2778) Saint Louis 2019}) 13... bxc3 14. Qxc3 Nxf6 15. Na5 {The position is equal.} Rc8 16. Nc6 Qe8 17. Nxe7+ Qxe7 18. Qa5 Rc6 {[#]} 19. Rg1 $146 ({Predecessor:} 19. Kb1 Rfc8 20. Rd2 Nh5 {1-0 (58) Zugrav,W (2559)-Nataf,I (2489) ICCF email 2016}) 19... Nh5 20. Rg2 (20. Bxa6 $2 Ra8 $19) 20... Qf6 21. Rf2 h6 22. Kb1 Rfc8 23. b3 ({Avoid the trap} 23. Bxa6 $2 Ra8 $19) 23... Nf4 24. c4 ({Don't go for} 24. Bxa6 $2 Ra8 $19) 24... Kh7 25. Ka1 Ng6 26. Bd3 Nf4 27. Bc2 Kh8 28. Bb1 Ra8 (28... Nh3 $11 29. Rff1 Nf4) 29. Rfd2 $16 Ng6 30. Rxd6 Rxd6 (30... Qxf3 $142 31. Rxc6 Qxd1) 31. Rxd6 Qxf3 32. Rd8+ (32. Qd2 $16) 32... Rxd8 $11 33. Qxd8+ Kh7 34. Qd2 Nf4 (34... Bc8 $11) 35. c5 $14 g5 36. c6 h5 37. Bc2 g4 {[#]} 38. Qf2 $1 Qh3 (38... Kg6 $16 {might work better.}) 39. c7 $2 ({Only move:} 39. Kb2 $18) 39... Qg2 $1 $11 40. b4 Qxf2 41. Bxf2 {[%mdl 4096] Endgame Strongly threatening a4. KBB-KBN} Bc8 $1 42. a4 {Black must now prevent b5.} Ne6 $1 43. Bb3 {Threatening Bxe6.} Kg6 44. Bxe6 fxe6 $14 {KB-KB} 45. Kb2 Kf7 46. Bg3 Ke8 47. Bxe5 Kd7 48. Kc3 Bb7 49. Kd4 {Hoping for Kc5.} Bc6 50. a5 Kc8 51. Ke3 h4 52. Bd6 Kd7 53. Kf4 g3 {[#]} 54. h3 ({Not} 54. hxg3 $2 h3 $19) ({White should play} 54. Kf3 $1 $16) 54... g2 55. Bc5 Kxc7 56. e5 Bb5 57. Kg4 Kc6 {Accuracy: White = 57%, Black = 55%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.2"]
[White "Yudin, Sergei"]
[Black "Harshavardhan G B"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2508"]
[BlackElo "2343"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,106,39,48,40,41,43,45,47,43,47,44,34,52,29,31,20,43,18,48,35,98,38,42,25,60,59,62,61,74,66,52,62,76,65,75,76,75,75,83,72,74,67,205,206,206,206,197,189,194,181,227,239,251,150,157,91,74,102,141,118,206,208,306,312,344,344,406,403,422,419,414,422,421,309,421,422,416,415,409,408,407,415,511,508,649,618,633,411,629,626,4706,4132,2487,2462,1632]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 Kh8 8. h3 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} Ng8 9. Nc3 f5 10. Nd5 {White is slightly better.} fxe4 (10... Nf6 11. Ng5 Ng8 12. Qh5 Nh6 13. c3 f4 14. Nf3 Bd7 15. Nh2 Be8 {1-0 (37) Wang,H (2756)-Moiseenko,V (2526) Moscow 2019}) 11. dxe4 Be6 12. a5 a6 13. c3 Qd7 $146 ({Predecessor:} 13... Rb8 14. b4 Bf7 15. Be3 Bh5 {½-½ (41) Admiraal,M (2447)-Pruijssers,R (2489) Vlissingen 2017}) 14. Be3 Nf6 15. Nd2 (15. Qb3 {is interesting.} Bg8 16. Nd2 Rab8 17. Qa4 Bd8 18. b4) 15... Bg8 16. b4 Nxd5 (16... Bd8 $14) 17. Bxd5 (17. exd5 $16 Na7 18. Bb3) 17... Nd8 $14 18. c4 c6 19. Bxg8 Kxg8 20. c5 Qe6 {[#]} 21. cxd6 $1 Bxd6 22. Rb1 Nf7 23. Qc2 Be7 24. Nb3 Rad8 25. Bb6 Rd7 26. Red1 Rxd1+ 27. Rxd1 Bxb4 ({Black should try} 27... Re8 $14) 28. Bc5 $18 Bxc5 29. Nxc5 Qg6 30. Qb3 (30. Nxb7 $6 Ng5 $16) 30... h5 31. Rd7 ({Resist} 31. Qxb7 $6 Ng5 $16) (31. Nxb7 $6 Kh7 $16) 31... Kh8 32. Rxb7 ({Don't play} 32. Nxb7 $6 Ng5 $16) 32... Nd6 33. Rd7 (33. Rb6 $18) 33... Nb5 $16 34. Qg3 (34. Qe6 $142 Qg5 35. Nd3 (35. Nxa6 Nd4 $17)) 34... Qxg3 35. fxg3 {[%mdl 4096] Endgame KRN-KRN} Nd4 36. Nd3 Re8 (36... Rb8 $16) 37. Ra7 $18 Rd8 (37... Rc8 $142 38. Nxe5 c5 39. Rxa6 c4) 38. Nxe5 {Black must now prevent Nf7+.} ({Less strong is} 38. Rxa6 Ne2+ 39. Kf2 Rxd3 $16) 38... Re8 39. Nf3 Nb3 40. Rxa6 c5 41. Rc6 Nxa5 42. Rxc5 {[%mdl 64] [#] Double Attack} Nb7 43. Rxh5+ Kg8 44. e5 Nc5 45. Rh4 Nd3 46. Re4 Rc8 47. Rd4 Rc1+ 48. Kh2 Nc5 49. Ng5 {[%cal Rd4d8]} Kf8 50. Rd8+ Ke7 51. Rg8 {White is clearly winning.} Ne6 52. Nxe6 Kxe6 53. Rxg7 Kxe5 {Accuracy: White = 67%, Black = 50%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.3"]
[White "Neelotpal, Das"]
[Black "Ponkratov, Pavel"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2436"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,100,0,19,15,23,-13,-14,-18,-8,-12,-6,-10,-2,-15,0,4,0,0,44,41,51,32,36,-12,-14,-65,-43,-52,-47,-56,-33,-47,-22,-31,-47,-28,-43,-43,-38,-70,-77,-123,-126,-145,0,0,0,0,-7,-17,0,0,0,0,0,0,0,0,0,0,60,47,103,85,93,97,129,145,133,0,0,0,0,0,0,-70,-66,-85,-53,-257,-252,-12840,-12839,-12841,-12841,-12842,-12842,-12843,-12843,-12842,-12843,-12843,-302]} 1. d4 Nf6 2. Nf3 c5 3. c3 e6 4. Bf4 Nc6 5. e3 Nh5 6. Bg5 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems} (6. Bg3 Qb6 7. Qb3 Nxg3 8. hxg3 d5 9. Nbd2 Bd7 10. g4 g6 11. g5 Bg7 12. Qa3 Bf8 13. Qb3 {½-½ (68) Kamsky,G (2677)-Alekseenko,K (2704) Moscow 2019}) 6... Qb6 7. Qc2 h6 8. Bh4 {The position is equal.} g5 9. Bg3 Nxg3 10. hxg3 g4 11. dxc5 $146 ({Predecessor:} 11. Nfd2 d5 12. dxc5 Bxc5 13. Be2 {0-1 (38) Milosevic,M (1689)-Miladinovic,L (2110) Novi Sad 2017}) 11... Qxc5 12. Nd4 Bg7 13. Nd2 Rb8 14. O-O-O O-O 15. Be2 (15. N2b3 {looks sharper.} Qg5 16. Nxc6 bxc6 17. Qe4 d5 18. Qf4) 15... f5 16. N4b3 Qe7 $1 17. e4 ({Better is} 17. f3 $11) 17... b5 18. exf5 exf5 19. Rhe1 Qf6 20. a3 a5 21. Nf1 $1 b4 22. axb4 axb4 23. c4 $1 Ra8 24. Kb1 Ne5 $1 {Hoping for ...Bb7.} 25. c5 Bb7 $1 {[%cal Rb7e4]} 26. f3 Qf7 (26... gxf3 $17 27. Bxf3 Nxf3 28. gxf3 Bxf3) 27. Ne3 $11 gxf3 28. gxf3 Bc6 29. Rd6 Rae8 {Strongly threatening ...Ba4.} ({Of course not} 29... Bxf3 $6 30. Bxf3 Nxf3 31. Rf1 $16) 30. Rxc6 dxc6 31. f4 $1 {[%cal Rf4e5]} Qf6 {And now ...Ng4 would win.} 32. fxe5 Qxe5 33. Nc4 $36 {[%mdl 2048] White has the initiative.} Qxg3 34. Qd1 Re7 ({Black should play} 34... Qf2 $11) 35. Rg1 $14 {[%mdl 1024] White has compensation.} Qf2 (35... Qh4 $14) 36. Bf3 $16 Rfe8 {...Re1 is the strong threat.} 37. Rg2 ({But not} 37. Bxc6 $2 Re1 $19) 37... Qh4 38. Qd3 $1 ({Don't go for} 38. Bxc6 $2 Re1 $3 $19 {[%mdl 512]}) 38... Re1+ 39. Ka2 (39. Kc2 $16) 39... Rd8 $11 40. Qc2 Ra8+ 41. Nba5 Qd8 42. Bxc6 (42. Qd2 $11 Rxa5+ 43. Nxa5 Qxa5+ {[%mdl 64] Double Attack} 44. Kb3) 42... Rxa5+ $15 43. Nxa5 Qxa5+ 44. Ba4 $2 ({White has to play} 44. Kb3 $1 $15) 44... Kh8 $19 {White must now prevent ...Re3.} 45. c6 $2 {[#]} (45. Qb3 f4 46. c6) 45... b3+ $1 {[%mdl 576] Deflection. Black is clearly winning.} 46. Qxb3 {[#]} (46. Kxb3 Qd5+) 46... Re4 $1 {[%cal Re4a4]} 47. Qb8+ Kh7 48. b3 Rxa4+ 49. bxa4 Qxa4+ {[%mdl 64] Double Attack} 50. Kb1 Qd1+ {Accuracy: White = 50%, Black = 70%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.4"]
[White "Taher, Yoseph Theolifus"]
[Black "Pranav Vijay"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2462"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,88,6,3,8,14,9,21,3,5,8,6,0,0,0,0,0,0,0,0,-1,-12,-12,-2,-7,-7,-7,-6,-13,0,0,0,0,0,0,0,0,0,0,14,10,8,7,4,5,56,56,81,38,132,138,137,137,129,96,81,64,64,45,45,41,85,47,46,46,55,27,39,22,26,20,26,26,64,64,64,64,76,76,76,18,18]} 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. a3 g6 6. e3 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} (6. b4 Bg7 7. d3 Ne7 8. Bb2 O-O 9. e3 c6 10. c5 d5 11. cxd6 Qxd6 12. Nf3 Kh8 13. O-O {1-0 (43) Le,Q (2714)-Yakubboev,N (2556) St Petersburg 2018}) 6... Bg7 7. Nge2 e4 8. d3 {[%cal Rd3e4]} exd3 9. Nf4 Ne5 10. b3 $146 ({Predecessor:} 10. Qb3 g5 11. Qb5 Qe7 12. Nfd5 Nxd5 13. Nxd5 {0-1 (27) Jaracz,P (2521)-Kovalev,A (2533) Glogow 2001}) 10... Ne4 11. Nxe4 fxe4 12. Bxe4 Nxc4 $1 {aiming for ...Nd6.} 13. Ra2 {[#]} d2+ $1 {[%mdl 512]} 14. Bxd2 Nxd2 15. Qxd2 ({But not} 15. Kxd2 c6 $17) 15... c6 16. O-O d5 17. Bg2 O-O 18. b4 a6 19. a4 Bf5 {[#]} 20. b5 $1 {[%mdl 512]} axb5 21. axb5 Rxa2 22. Qxa2 g5 23. Ne2 Bd3 24. bxc6 bxc6 {Black wants to play ...Bc4.} 25. Qd2 Bc4 26. Rc1 Bxe2 ({Better is} 26... Qe7 $11) 27. Qxe2 $14 d4 28. Rd1 c5 (28... Qe8 $14) 29. Qc4+ $16 Kh8 30. Qxc5 Qf6 31. Rf1 ({Of course not} 31. exd4 $6 Qxf2+ 32. Kh1 Re8 $11) 31... dxe3 32. fxe3 Qd8 33. Rxf8+ Bxf8 34. Qf5 Bg7 35. Bd5 Qf6 36. Qc8+ Bf8 37. Be4 Kg7 38. Qd7+ Be7 39. Bc2 Qe5 40. Qd3 Bc5 41. Qxh7+ Kf8 42. Kg2 Qxe3 43. Qf5+ Ke7 {[#]} 44. Kh3 ({White should try} 44. Bd3 $1 $16) 44... Qe6 {Accuracy: White = 62%, Black = 58%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.5"]
[White "Bharath Subramaniyam H"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2413"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,104,0,-16,0,-22,-23,-36,5,-25,-10,-14,0,13,14,3,16,8,25,21,22,9,28,4,15,1,0,0,7,0,0,-8,0,0,0,-69,-56,-106,-68,-117,-83,-87,-15,-20,17,-92,-90,-94,-47,-49,-28,-110,-116,-89,-51,-196,-194,-195,-192,-197,-193,-185,-172,-255,-262,-258,-250,-222,-231,-436,-438,-418,-385,-393,-401,-399,-377,-443,-432,-743,-720,-1095,-1068,-1020,-870,-6091,-6263,-6079,-5716,-2078,-4614,-29967,-29970,-12819,-5097]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Bc5 7. d3 O-O {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines} (7... d6 8. c3 h6 9. O-O O-O 10. Be3 Bxe3 11. Qxe3 Na5 12. Bc2 c5 13. Nbd2 Nc6 14. a4 Rb8 15. axb5 axb5 16. Rfd1 Qb6 17. Nf1 d5 18. exd5 Nxd5 19. Qe4 Nf6 20. Qe2 Re8 21. Ng3 Be6 22. Re1 Bd5 23. Nd2 {½-½ (23) Tiviakov,S (2637)-Shirov,A (2749) Hoogeveen 2010}) 8. Bg5 h6 9. Bh4 Be7 {Black is slightly better.} 10. Nbd2 d6 11. c3 a5 $146 ({Predecessor:} 11... Nh5 12. g3 Nf6 13. Bxf6 Bxf6 14. Nf1 Ne7 15. Ne3 {1-0 (35) Durarbayli,V (2456)-Adhiban,B (2486) Kemer 2009}) 12. a4 {Hoping for Bxf6.} b4 13. O-O Ba6 14. Bc4 Qc8 15. d4 bxc3 16. bxc3 exd4 17. cxd4 Re8 18. Rfc1 Nb4 19. Bxa6 Rxa6 20. Ra3 Qd7 21. h3 Raa8 22. Bg3 Bf8 23. Re3 (23. Raa1 $11) 23... Qxa4 $15 24. Rxc7 Rac8 25. Rc4 Qa2 26. Kh2 Nh5 (26... d5 $17 27. Rxc8 Rxc8) 27. d5 g6 28. Nd4 (28. Qf1 $11) 28... Nxg3 $17 29. Kxg3 Bg7 {And now ...Rxc4 would win.} 30. Nc6 Nxc6 31. Rxc6 (31. dxc6 $11 {remains equal.} Qb2 32. Rb3) 31... Rxc6 32. dxc6 Qb2 33. Nb3 (33. Qd3 $15) 33... a4 $19 {Strongly threatening ...Qxe2.} 34. Qxb2 Bxb2 {[%mdl 4096] Endgame KRB-KRN} 35. Re2 a3 $1 36. Rc2 {[#]} Kf8 $1 37. Kf3 (37. Nc1 {was called for.}) 37... Ke7 38. Ke3 Ra8 39. Kd3 Kd8 40. Nc1 $2 {[#]} (40. c7+ {might work better.} Kc8 41. Nc1) 40... Bxc1 $1 41. Rxc1 {KR-KR} a2 42. Ra1 Kc7 43. Kc4 Kxc6 44. Kb4 g5 45. f3 (45. Kc3 $142 Kd7 46. e5) 45... d5 46. e5 Kd7 47. g3 Ke6 48. f4 gxf4 49. gxf4 Kf5 50. Kc5 Kxf4 (50... h5 $142 51. h4 Kxf4 52. Kxd5 Kg4) 51. Kxd5 Kg3 52. Kd6 Ra7 {Accuracy: White = 25%, Black = 69%.} (52... h5 $142 53. h4 Ra7) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.6"]
[White "Ravichandran, Siddharth"]
[Black "Goganov, Aleksey"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2358"]
[BlackElo "2583"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,50,0,5,-45,-14,-15,-20,-32,-21,-37,-25,-75,-59,-64,-65,-60,-67,-91,0,0,0,-4,-9,-9,-3,-29,-29,-118,-103,-291,-283,-403,-397,-390,-335,-425,-339,-1043,-1036,-1171,-1157,-1096,-1095]} 1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. c4 e5 5. Nc3 (5. e3 exd4 6. exd4 Bb4+ 7. Nc3 O-O 8. Qf3 Re8+ 9. Nge2 dxc4 10. O-O-O Kh8 11. Ng3 Bxc3 12. bxc3 {1-0 (43) Mamedyarov,S (2765)-Giri,A (2779) Paris 2019}) 5... dxc4 6. d5 {D00: 1 d4 d5: Unusual lines} b5 $146 ({Predecessor:} 6... Nd7 7. Qa4 a6 8. Qxc4 b5 9. Qh4 b4 10. Nd1 f5 11. Qxd8+ Kxd8 12. Nf3 Bg7 {0-1 (32) Rataika,M-Zhukova,N (2333) Minsk 2019}) 7. Nxb5 c6 $1 {[%cal Rc6b5]} 8. Nc3 {The position is equal.} Qb6 9. Qd2 Bb4 $1 {Hoping for ...cxd5.} 10. d6 Be6 11. e3 Nd7 12. Nf3 $1 Rg8 13. Qc2 f5 ({Better is} 13... Nc5 $17 14. Nd2 (14. Qxh7 $2 O-O-O $17) 14... Qa6 15. Qxh7 O-O-O) 14. Nd2 $1 $11 Qc5 15. a3 Bxc3 16. Qxc3 {[%cal Rd2c4]} Nb6 17. d7+ Kxd7 18. b4 {[#]} (18. Rc1 $11) 18... Qb5 $1 $17 19. Rg1 $2 (19. Rb1 $17 {was worth a try.}) 19... a5 $19 {And now ...axb4 would win.} 20. Rb1 (20. Rc1 $142) 20... axb4 21. axb4 Ke7 22. Be2 Rgd8 {Threatens to win with ...Ra2.} 23. e4 $2 {[#]} (23. Qb2) 23... Ra2 {Black is clearly winning.} 24. Nf3 fxe4 25. Nxe5 f6 {Accuracy: White = 38%, Black = 81%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.7"]
[White "Bogdanovich, Stanislav"]
[Black "Ameir, Moheb"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2562"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,29,0,0,0,-14,-25,8,-9,31,37,59,55,56,49,236,230,250,265,302,264,421,416]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 g6 4. e3 Bg7 5. Nb5 Na6 6. Nf3 {D00: 1 d4 d5: Unusual lines} O-O 7. c4 c6 8. Nc3 {The position is equal.} Ne4 $146 ({Predecessor:} 8... Nc7 9. h3 Ne6 10. Be5 a6 11. Rc1 dxc4 12. Bxc4 {1-0 (31) Matlakov,M (2695)-Kovalev,V (2539) Wroclaw 2014}) 9. Rc1 Qa5 10. cxd5 cxd5 11. Qb3 Be6 $2 ({Black should try} 11... Rd8 $14) 12. Qxb7 $18 {[%mdl 64] [#] Double Attack} Nxc3 13. bxc3 ({Worse is} 13. Qxa6 Qxa6 14. Bxa6 Nxa2 $14) ({Don't take} 13. Rxc3 $6 Nc5 $16) 13... Qa3 14. Kd1 Bc8 (14... Nc5 {was worth a try.} 15. dxc5 Qxa2) 15. Qxa8 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.8"]
[White "Pranesh M"]
[Black "David, Alberto"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2317"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,31,38,22,32,28,33,25,63,17,23,9,26,28,0,0,0,-16,-8,-20,-4,-7,53,24,31,-14,0,-56,-72,-129,-116,-116,0,0,0,0,0,0,0,-1,0,-33,0,-24,-21,-56,-31,-27,2,-8,12,12,40,25,68,61,66,58,70,41,61,60,58,16,22,16,27,20]} 1. e4 e6 2. d4 d5 3. Nd2 h6 (3... c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd8 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 Be7 11. c3 O-O 12. Qf3 Qc7 {½-½ (12) Guseinov,G (2666)-Nepomniachtchi,I (2767) Moscow 2019}) 4. Ngf3 Nf6 5. e5 Nfd7 6. c3 {C03: French Tarrasch: Unusual Black 3rd moves} c5 7. Bd3 Nc6 8. O-O {White is slightly better.} Qb6 {[%cal Rc5d4]} 9. a4 $146 ({Predecessor:} 9. dxc5 Qc7 10. Nb3 Nxc5 11. Nxc5 Bxc5 {1-0 (55) Semenova,E (2286)-Grebnev,A (2093) Yekaterinburg 2019}) 9... g5 10. dxc5 Nxc5 11. Bb5 Bg7 12. b4 Nd7 13. Nb3 O-O 14. Bxc6 bxc6 15. Re1 Qd8 (15... Qc7 $1 $11) 16. Qe2 f6 17. Nbd4 (17. Nfd4 {with more complications.} Nxe5 18. f4 Nf7 19. Nc5 e5 20. Nde6) 17... g4 18. Nxe6 (18. Nd2 $11 Nxe5 19. N2b3) 18... gxf3 $15 19. Qxf3 (19. gxf3 $142 Qe7 20. Nxf8 Nxf8 21. f4) 19... Nxe5 $17 20. Rxe5 {[#]} fxe5 ({Black should try} 20... Qe7 $1 $17 21. Nxf8 Qxe5 22. Bxh6 (22. Bf4 $2 Qe8 $17) 22... Bxh6) 21. Nxd8 $11 Rxf3 22. gxf3 Bd7 23. Nb7 Rb8 24. Nc5 Bh3 25. Nd3 Bf5 {[%mdl 1024] Black has compensation.} 26. Ne1 Kf7 27. Kf1 Bf6 28. Ke2 e4 29. fxe4 Bxe4 30. Bd2 h5 31. Rc1 h4 32. Nf3 a5 33. bxa5 {[%cal Bb4a5,Ba5a6,Ba6a7][%mdl 32]} Rb2 {[#] Threatens to win with ...Bxf3+.} 34. a6 {a7 is the strong threat.} Ra2 35. a7 $1 {[%cal Ra7a8]} Rxa4 36. Ng5+ Bxg5 $1 37. Bxg5 {Strongly threatening Be3.} Rxa7 38. Bxh4 {Accuracy: White = 44%, Black = 44%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.9"]
[White "Fedorov, Alexei"]
[Black "Nitin, S.."]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "2562"]
[BlackElo "2347"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,90,0,10,0,5,0,0,0,0,0,0,0,0,0,7,0,0,4,19,26,33,27,54,59,73,69,72,56,55,58,58,66,94,87,125,127,127,129,122,58,59,73,72,-16,-15,-13,-15,-16,-14,-14,-16,-16,-13,-13,-16,-17,-11,-11,-11,-11,-11,-12,-11,-11,-11,-11,-8,-11,-8,-8,-8,-8,-8,-8,-8]} 1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 e6 6. Nf3 Nge7 7. O-O O-O 8. c3 d6 9. Be3 b5 10. d4 {B20: Sicilian: Unusual White 2nd moves} cxd4 11. Nxd4 (11. cxd4 a5 12. Nc3 Ba6 13. Qd2 b4 14. Ne2 Rc8 15. Rfd1 Qd7 16. a3 Bc4 17. axb4 axb4 {1-0 (60) Morozevich,A (2711)-Oparin,G (2569) Moscow 2015}) 11... Nxd4 12. Bxd4 e5 13. fxe5 dxe5 14. Bc5 {And now Qxd8 would win.} Qc7 $146 ({Predecessor:} 14... Qxd1 15. Rxd1 Bg4 16. Re1 Rfe8 17. a4 bxa4 18. Rxa4 {½-½ (46) Moser,E (2453)-Savina,A (2363) Vienna 2013}) 15. Qd6 Qxd6 16. Bxd6 Re8 17. a4 $36 {[%mdl 2048] White has some pressure.} Bd7 18. axb5 Bxb5 19. Re1 Rad8 20. Bc5 Nc6 21. Na3 Bd3 22. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} f5 23. b5 Na5 {Threatens to win with ...Nb3.} 24. Bxa7 Nb3 {[#]} 25. Ra2 $1 Bf8 26. exf5 e4 27. fxg6 hxg6 {[#]} 28. Nc2 (28. Bf1 $1 $16) 28... Ra8 $14 29. Nb4 Bxb5 {Strongly threatening ...Rxa7!} 30. Rxe4 (30. Bxe4 $16 {aiming for Bd5+.} Rxe4 31. Rxe4 Rxa7 {[%mdl 64] Remove Defender, Decoy} 32. Rxa7 Bc5+ 33. Kg2 Bxa7 34. c4) 30... Rxa7 $1 $11 {The position is equal.} 31. Rxe8 Bxe8 32. Bd5+ Bf7 33. Rxa7 Bc5+ {[%mdl 64] Double Attack} 34. Kg2 Bxa7 35. Kf3 Nd2+ 36. Kg4 Kg7 {White should prevent ...Bxd5.} 37. Bxf7 Kxf7 38. h4 Ne4 39. Nd5 Bb8 40. h5 gxh5+ 41. Kxh5 Ke6 42. Nf4+ Kf5 43. Ne2 Nf6+ 44. Kh4 Ke4 45. g4 Ke5 {Accuracy: White = 76%, Black = 66%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.10"]
[White "Srihari L R"]
[Black "Stupak, Kirill"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2302"]
[BlackElo "2506"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,59,10,13,18,25,19,28,51,14,24,21,21,20,25,32,16,22,22,23,19,14,18,10,29,28,25,17,17,17,16,10,11,12,11,6,21,12,25,20,41,12,12,7,9,10,8,10,10,6]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 c5 5. c3 Nf6 6. O-O O-O 7. dxc5 a5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (7... Na6 8. b4 Re8 9. a3 e5 10. Bg5 Nc7 11. Nbd2 Nb5 12. Qc1 h6 13. Bxf6 Bxf6 14. e4 d4 15. cxd4 exd4 {1-0 (33) Moussard,J (2605)-Christiansen,J (2559) chess.com INT 2019}) 8. c4 Na6 {[%cal Bb8a6,Ba6c5,Bc5e4,Be4d6,Bd6c4][%mdl 32]} 9. Nc3 {[%cal Rc4d5]} dxc4 {White has an edge.} 10. Qxd8 (10. c6 $5) 10... Rxd8 11. Ne5 Nxc5 12. Be3 Nfe4 13. Nxe4 Nxe4 14. Nxc4 Nd6 15. Nb6 $146 ({Predecessor:} 15. Rfd1) 15... Rb8 $1 16. Nd5 Be6 $1 17. Nxe7+ Kf8 18. Nd5 {Threatens to win with Bg5.} Nc4 $1 19. Bc5+ Kg8 20. Nf4 Rbc8 21. Nxe6 fxe6 22. Be7 Rd7 23. Bg5 {Black should prevent Rad1.} h6 24. Bc1 Kf7 25. Rb1 b6 26. Bf3 Nd2 {The position is equal.} 27. Bxd2 $1 Rxd2 28. Rfd1 Rcc2 29. Rxd2 Rxd2 30. Kf1 {Accuracy: White = 65%, Black = 68%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.11"]
[White "Vasquez Schroeder, Rodrigo"]
[Black "Saravanan, V.."]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2487"]
[BlackElo "2325"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,75,11,10,-8,5,-27,19,20,22,-19,31,14,28,36,-12,4,0,-56,31,4,11,2,24,-92,-83,-76,-82,-244,-163,-228,-120,-95,-77,-133,0,0,0,-7,106,144,110,133,218,128,243,235,475,479,480,478,483,488,438,482,560,525,29982,29983,29983,29984,29996,29997]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nce2 c5 6. f4 Nc6 7. c3 Be7 8. Nf3 O-O 9. a3 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} (9. Be3 b5 10. dxc5 Nxc5 11. Ng3 Rb8 12. Rc1 Bd7 13. b4 Na4 14. Bd3 f5 15. exf6 Bxf6 16. O-O Be8 {1-0 (48) Wang,H (2725)-Lupulescu,C (2649) Changsha 2019}) 9... Qb6 10. h4 cxd4 11. cxd4 {The position is equal.} f6 12. b4 a5 13. b5 $1 {[%cal Rb5c6]} Qxb5 14. Nc3 Qb6 15. Rb1 Qd8 16. Bd3 (16. Nb5 $11) 16... Qe8 (16... fxe5 $15 17. Ng5 exd4 18. Nxe6 {[%mdl 64] Double Attack} Qe8) 17. h5 $146 (17. O-O {feels hotter.} Qd8 18. g3 f5 19. Qb3 h6 20. Bd2) ({Predecessor:} 17. Nb5) 17... fxe5 18. fxe5 Nxd4 (18... Rxf3 $5 19. gxf3 (19. Qxf3 Nxd4 20. Qg4 Bc5 $11) 19... Nxd4 20. Bxh7+ Kxh7 21. Qxd4 Qf7 22. Qd3+ Kg8 $11) 19. Bxh7+ (19. Nxd4 $11 Nxe5 20. Bc2) 19... Kxh7 $17 20. Qxd4 {White wants to play Nb5.} Rf5 21. h6 $2 (21. Be3 $17) 21... Rh5 22. Rf1 (22. Rxh5 {keeps fighting.} Qxh5 23. hxg7) 22... gxh6 (22... Qg6 $19 23. hxg7 b6) 23. g4 Rh3 {White must now prevent ...b6.} 24. Ne2 Nc5 (24... Ra6 $17 25. Nf4 Rg3) 25. Nf4 $36 {[%mdl 2048] Black is under pressure.} Rg3 {And now ...Bd7 would win.} 26. Rb2 $1 Qa4 ({Don't play} 26... Rxg4 27. Rh2 $17) (26... b6 $11 {remains equal.} 27. Rh2 Qb5) 27. Qxa4 $16 Nxa4 28. Rh2 $1 Rxg4 {[#]} (28... Nc5 $16) 29. Rfh1 ({White should play} 29. Nh5 $1 $18) 29... Bf8 {[#]} (29... Kg8 $16 {might work better.}) 30. Nh5 $1 $18 {[%cal Rh5f6] Nf6+ is the strong threat.} Kg6 $2 (30... Re4+ {was necessary.} 31. Kf1 b6 32. Nf6+ {[%mdl 64] Double Attack} Kg6 33. Nxe4 dxe4) 31. Nf6 Re4+ 32. Nxe4 dxe4 33. Rg2+ Kf7 34. Nh4 Bc5 35. Bxh6 {Strongly threatening Rg7+.} Ra6 {If Black can now play ...Ke8 this consolidates a bit.} 36. Rg7+ {White mates.} Ke8 37. Ng6 Rb6 38. Bc1 {Accuracy: White = 57%, Black = 22%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.12"]
[White "Rohith Krishna S"]
[Black "Karthik Venkataraman"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2289"]
[BlackElo "2479"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,72,10,13,2,6,6,5,5,20,18,27,22,34,35,42,0,36,38,38,25,33,33,33,33,33,33,28,28,28,28,28,0,0,0,-4,-7,0,0,0,0,17,17,17,17,17,17,17,17,25,25,29,29,29,29,35]} 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ 4. Nbd2 O-O 5. g3 b6 6. Bg2 Bb7 7. O-O d5 8. cxd5 exd5 9. Ne5 Be7 10. Qc2 c5 11. b3 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+} (11. dxc5 bxc5 12. Rd1 Qc8 13. Nb3 a5 14. Be3 Na6 15. Rac1 d4 16. Bxb7 Qxb7 17. Bg5 Nb4 18. Qb1 a4 19. Nd2 Qd5 {½-½ (150) Nakamura,H (2787)-Harikrishna,P (2763) chess.com INT 2016}) 11... Na6 12. Bb2 Rc8 13. Rac1 {The position is equal.} Bd6 $146 ({Predecessor:} 13... cxd4 14. Qd3 Bc5 15. a3 Qe7 16. Ndf3 Bxa3 17. Bxa3 Qxa3 {½-½ (29) Dorfanis,I (2184)-Antic,D (2473) Porto Carras 2013}) 14. Qb1 Qe7 15. e3 Rfe8 16. Rfd1 Rc7 17. Qa1 Nb4 18. a3 Na6 {[%cal Bb4a6,Ba6c7,Bc7b5,Bb5c3][%mdl 32]} 19. Nd3 (19. Re1 {is interesting.} cxd4 20. exd4 Rxc1 21. Qxc1 Nc7 22. b4) 19... cxd4 20. Rxc7 Nxc7 21. Bxd4 Nb5 22. Bxf6 Qxf6 23. Qxf6 gxf6 24. a4 Nc3 25. Ra1 Ba6 26. Bf1 {[#]} d4 $1 {[%cal Rd4e3][%mdl 512]} 27. Re1 (27. exd4 Ne2+) 27... Bxd3 28. Bxd3 Bb4 29. Nf3 Nd5 30. Bb5 Rd8 31. Rd1 dxe3 32. fxe3 {[#] Strongly threatening e4.} Rd6 $1 33. e4 Bc5+ 34. Kh1 {White has an edge.} Nc3 35. Rxd6 Bxd6 36. Bd3 Be5 {Accuracy: White = 75%, Black = 53%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.13"]
[White "Vishnu Prasanna. V"]
[Black "Saravana, Krishnan P."]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2474"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,81,35,21,24,19,43,33,38,43,37,37,42,37,37,34,35,41,43,23,41,35,32,34,59,45,73,50,43,39,71,68,66,67,158,162,225,238,231,227,228,167,304,307,606,609,612,606,576,572,570,563,540,513,695,673,702,700,857,852,825,821,818,820,766,752,1077,1058,1704,1689,29985,29983]} 1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 a6 5. Nf3 b5 6. b3 Bg4 7. Be2 {7.a4 deserves study.} (7. Bd3 {feels hotter.} Nbd7 8. O-O e6 9. h3 Bh5 10. Qe2) 7... e6 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} 8. h3 (8. Bb2 {seems wilder.} Nbd7 9. O-O bxc4 10. bxc4 Rb8 11. Rb1) 8... Bxf3 9. Bxf3 Nbd7 {White is slightly better.} 10. O-O Be7 11. a4 b4 12. Ne2 a5 13. Bb2 O-O 14. Rc1 Rc8 15. Nf4 Bd6 16. Nd3 Ne4 17. Qe2 f5 18. Rc2 Qh4 19. cxd5 cxd5 20. Rfc1 Rce8 21. Bxe4 fxe4 22. Ne5 $1 {[%cal Re5d7]} Bxe5 ({Black should play} 22... Nb8 $1 $14) 23. dxe5 $16 h5 (23... Qg5 $142) 24. Rc7 $18 Rf7 {[#]} 25. R1c2 $1 Ree7 26. Bd4 g5 (26... Qg5 $142) 27. Qa6 {Hoping for Rxd7!} g4 $2 {[#]} (27... Kh7 28. Ra7 (28. Qxa5 g4 $16) 28... g4) 28. g3 $1 {[%cal Rg3h4]} Qg5 29. h4 Qf5 30. Qxa5 Qf3 31. Qxb4 Qd1+ 32. Kg2 Kh7 33. Qd2 ({Weaker is} 33. Kh2 Kg6 $18) 33... Qf3+ 34. Kg1 Kg6 35. a5 Nb8 36. Rxe7 Rxe7 37. b4 Rb7 38. Bb6 Nd7 39. Rc6 Qf5 40. Qxd5 Nf6 41. Qxe6 {Accuracy: White = 96%, Black = 41%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.14"]
[White "Jubin Jimmy"]
[Black "Harikrishnan.A.Ra"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2193"]
[BlackElo "2444"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,89,30,27,30,33,26,25,41,28,34,29,19,33,33,0,0,-45,4,0,4,-14,-30,-28,-23,-35,-39,-43,-27,-49,-42,-45,-45,-53,-42,-50,-9,-9,-9,-17,-13,-10,0,0,0,0,0,0,0,0,0,0,0,0,127,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 f5 8. Nh3 d6 9. f3 Nf6 10. e3 e5 11. dxe5 dxe5 12. Be2 a5 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} 13. b3 f4 14. Nf2 ({Much worse is} 14. exf4 Bxh3 15. gxh3 Nh5 $15) 14... fxe3 {White has an edge.} 15. Bxe3 Nc6 16. O-O Nd4 17. Bxd4 exd4 {[#]} 18. Rad1 $146 ({Predecessor:} 18. Bd3 g6 19. Rfe1 Kg7 20. Re5 Qd6 21. Rae1 c5 22. Rg5 Nd7 23. Ng4 Ra6 24. Qf2 Qf4 25. Qh4 Rc6 26. Qh6+ Kg8 27. Bxg6 {1-0 (27) Kuljasevic,D (2537)-Mencinger,V (2399) Pula 2011}) 18... c5 19. a4 Nh5 20. Bd3 g6 21. Be4 Kg7 22. Rfe1 Ra7 23. Qd2 b6 24. Nd3 Re7 25. Re2 Nf6 26. Nf2 Rfe8 27. Rde1 Nxe4 28. Rxe4 Bf5 29. Rxe7+ Rxe7 30. Rxe7+ Qxe7 31. g4 Bd7 32. Qf4 $1 Bc6 {[#]} 33. h4 $1 {[%mdl 512]} Qf7 (33... Qxh4 34. Qc7+) 34. Qe5+ Kg8 35. Ne4 Bxe4 36. Qxe4 $11 {[%mdl 4096] Endgame KQ-KQ} Qf6 37. g5 Qd6 {[#]} (37... Qf5 $11 {keeps the balance.} 38. Qxf5 gxf5) 38. Kf2 (38. Qd5+ $1 $16 Qxd5 39. cxd5) 38... Kf7 {The position is equal.} 39. Qb7+ Qe7 40. Qd5+ Kg7 41. Kg3 Qc7+ 42. Kg2 Qe7 43. Kg3 h6 44. Kh3 hxg5 45. hxg5 {Accuracy: White = 61%, Black = 66%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.15"]
[White "Hesham, Abdelrahman"]
[Black "Samant Aditya S"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2429"]
[BlackElo "2296"]
[Annotator "TA"]
[PlyCount "174"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,210,22,6,0,-17,0,-19,10,-29,8,-31,-5,-35,-22,-84,-52,-88,12,-86,-55,-78,-80,-64,-49,-54,-54,-54,-54,-62,0,-40,-36,-31,-35,-43,-42,-80,-45,-74,-78,-70,-44,-45,-57,-54,-41,-68,-33,-62,-54,-162,-161,-147,-126,-475,-470,-802,-810,-791,-761,-744,-598,-921,-472,-1126,-650,-580,-530,-626,-625,-657,-338,-350,-349,-347,-338,-347,-332,-290,-290,-852,-618,-516,-470,-781,-687,-1268,-1268,-1139,-933,-4889,-4794,-2388,-2362,-2001,-1605,-5293,-2047,-2729,-1464,-1496,0,-2439,-2087,-595,-439,-833,-2330,-1660,-1203,-29974,-29975,-29975,-5929,-29984,-29985,-29988,-29974,-29974,0,-29988,-4133,-29985,-29986,-29988,-395,-29978,-29979,-29976,-133,-133,-133,-133,-133,-133,-133,-133,-8,-14,0,0,0,0,0,0,0,0,0,0,0,-133,-133,-133,-133,-133,0,0,0,-133,-140,-29973,-29974,-29990,-7,-41,0,-25,-8,-8,-8,-8,0,0,0,0,0,-29981,-29978,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29987,-29985,-29988,-29988,-29989,-29990]} 1. Nf3 Nf6 2. c4 e6 3. e3 b6 4. b3 Bb7 5. Bb2 c5 6. g3 Be7 7. Bg2 O-O 8. O-O d5 9. Qe2 Nc6 10. d3 Qd7 {A14: English Opening: 1...e6 with b3 by White} (10... Qc7 11. Nc3 Rad8 12. Rad1 Qb8 13. Nb1 e5 14. cxd5 Nxd5 15. Nbd2 Rfe8 16. a3 h6 17. Rfe1 b5 18. Ne4 Nf6 19. Nxf6+ Bxf6 {1-0 (42) Hou,Y (2651)-Kramnik,V (2809) Medias 2016}) 11. Nc3 Rfd8 12. Rad1 Rac8 {The position is equal.} 13. h3 $146 ({Predecessor:} 13. Rfe1 a6 14. d4 cxd4 15. Nxd4 Nxd4 16. Rxd4 Bb4 17. cxd5 Bxc3 18. dxe6 Qxd4 19. exd4 Bxg2 20. Bxc3 {1-0 (30) Damljanovic,B (2581)-Todorovic,G (2465) Smederevska Palanka 2016}) 13... h6 14. g4 a6 15. Rfe1 Qc7 16. Qc2 (16. cxd5 $11 exd5 17. d4) 16... Qb8 17. Qb1 Qa8 (17... d4 $17 18. Ne2 Nh7) 18. Nh2 (18. cxd5 $1 $11 {remains equal.} Nxd5 19. Nxd5 Rxd5 20. Nd2) 18... dxc4 19. bxc4 Ne5 20. Ne4 Ned7 21. Nxf6+ Bxf6 22. Bxf6 Nxf6 23. e4 {[#]} Rb8 (23... b5 $1 $15 {[%mdl 512]}) 24. f4 Bc6 25. Qc2 Qb7 26. Nf3 Qc7 27. f5 Nd7 28. Qc3 Re8 29. fxe6 fxe6 30. Rf1 Rf8 31. g5 h5 (31... hxg5 {is interesting.} 32. Nxg5 Qg3 33. Nf3 Rf4 34. Qe1 Qg6) 32. Qe1 Ne5 33. Qh4 g6 34. Ne1 (34. Qg3 $15 Nxf3+ {[%mdl 64] Discovered Attack} 35. Rxf3 Qxg3 36. Rxg3) 34... Rxf1+ $19 35. Bxf1 Rf8 $36 {[%mdl 2048] Black is in control.} 36. Be2 $2 {[%mdl 8192]} (36. Rd2 $17 {is tougher.}) 36... Qd6 {Hoping for ...Qd4+.} 37. Rc1 (37. Kg2 $142 Ba4 38. Rb1) 37... Qd4+ 38. Kg2 Ba4 39. Rb1 b5 40. cxb5 Bxb5 {Strongly threatening ...Qc3.} 41. Rc1 (41. Qg3 $142 c4 42. Nf3 Nxf3 43. Bxf3 Qxd3 44. Re1) 41... Bxd3 42. Nxd3 Nxd3 43. Rf1 Rxf1 44. Kxf1 Qe3 45. Bxd3 Qxd3+ {[%mdl 4096] Endgame KQ-KQ} 46. Kf2 e5 47. Qg3 Qxe4 48. Qb3+ Kg7 49. Kg1 $2 (49. a4) 49... Qe1+ 50. Kg2 Qd2+ 51. Kh1 (51. Kf1 $142 Qxg5 52. Kf2) 51... Qc1+ 52. Kh2 {intending Qb7+.} Qxg5 53. Qb7+ Kh6 54. Qxa6 Qf4+ 55. Kg2 e4 56. Qc8 Qf3+ 57. Kh2 Qf2+ 58. Kh1 Qf1+ 59. Kh2 Qf2+ (59... Qe2+ $142 60. Kh1 e3) 60. Kh1 Kg5 61. Qd8+ Kf4 62. Qf6+ {[#]} (62. Qc7+ $142 Kf3 63. Qf7+ Ke2 64. Qb7 Qf1+ 65. Kh2 Qf4+ 66. Kh1 Qf3+ 67. Kh2 Qf4+ 68. Kh1 Qf1+ 69. Kh2 Qf4+) 62... Ke3 $1 63. Qc3+ Ke2 64. Qc4+ Kd2 65. a4 e3 (65... Qf3+ $142 66. Kh2 Qf2+ 67. Kh1 e3 68. Qa2+ Kc3 69. Qa1+ Kc4 70. Qc1+ Kd4 71. Qd1+ Ke5 72. Qa1+ Kd6 73. Qd1+ Ke7 74. Qa1 e2 75. Qg7+ Kd8 76. Qh8+ Kd7 77. Qg7+ Kc8 78. Qg8+ Kc7 79. Qg7+ Kb6 80. Qb2+ Ka7 81. Qg7+ Ka6 82. Qxg6+ Ka5 83. Qg1 e1=Q 84. Qxe1+ Qxe1+ 85. Kg2 c4 86. h4 c3 87. Kf3 c2 88. Kf4 c1=Q+ 89. Kf3 Qce3+ 90. Kg2 Q3g3#) 66. Qd5+ Ke1 67. Qxc5 Qf1+ 68. Kh2 Qf2+ 69. Kh1 {and the idea Qc1+ leaves White hopeful.} Kf1 (69... Qg3 $142 70. Qc3+ Kf2 71. Qb2+ e2 72. Qd4+ Kf1 73. Qf6+ Qf2 74. Qxg6 Qf3+ {[%mdl 64] Double Attack} 75. Kh2 e1=Q 76. Qg1+ Ke2 77. Qxe1+ Kxe1 78. Kg1 Qg3+ 79. Kh1 Kf1 80. a5 Qxh3#) 70. Qc1+ Qe1 $1 71. Qc2 Qe2 $2 ({Weaker is} 71... e2 72. Qxg6 Qf2 73. Qb1+ e1=R 74. Qd3+ Qe2 75. Qf5+ Qf2 76. Qd3+ Qe2 77. Qf5+ Qf2 78. Qd3+ $11) (71... Qg3 72. Qc1+ Kf2 73. Qb2+ e2 74. Qd4+ Kf1 75. Qf6+ Qf2 76. Qxg6 Qf3+ {[%mdl 64] Double Attack} 77. Kh2 e1=Q 78. Qg1+ Ke2 79. Qxe1+ Kxe1 80. Kg1 Qg3+ 81. Kh1 Kf1 82. a5 Qxh3#) 72. Qxg6 $2 (72. Qc1+ $19 Qe1 73. Qxe1+ Kxe1 74. Kg2 Kd2 75. Kf3 e2 76. Ke4 e1=Q+ 77. Kd5 Qh1+ 78. Kd6 Qxh3 79. Kc6 Qe6+ 80. Kc5 h4 81. a5 h3 82. a6 h2 83. a7 h1=Q 84. a8=B Qxa8 85. Kb4 Qb7+ 86. Kc5 Qed5#) 72... Qf3+ 73. Kh2 Qf4+ $2 (73... h4 $1 74. Qb1+ Kf2 75. Qg1+ Ke2 76. Qg5 Qg3+ $1 {[%mdl 576] Promotion} 77. Qxg3 hxg3+ 78. Kxg3 Kd2 79. Kf4 e2 80. Ke5 e1=Q+ 81. Kd6 Qh4 $1 {[%mdl 512]} 82. Kd5 Qxa4 83. Ke6 Qh4 84. Kd5 Qxh3 85. Kd6 Qf5 86. Kc7 Kc3 87. Kd6 Kd4 88. Kc6 Qd5+ 89. Kb6 Qd7 90. Ka5 Kc5 91. Ka6 Qf7 92. Ka5 Qa7#) 74. Kh1 $17 Ke2 {White must now prevent ...Kd2.} (74... Qxa4 $2 75. Qf5+ Ke1 76. Qe5 $19) (74... Qf3+ 75. Kh2 $19) 75. Qc2+ {[#]} Ke1 $1 76. Qc1+ Kf2 77. Qg1+ Ke2 78. a5 $1 Kd3 79. Qd1+ Kc3 80. Qe1+ Kd3 81. Qb1+ Kd2 82. Qb2+ Kd3 83. Qb5+ Kd2 84. Qd5+ (84. Qb2+ $1 $11 Ke1 85. Qb1+ Kd2 86. Qb2+) 84... Ke1 85. a6 Qf1+ 86. Kh2 {And now Qa5+ would win.} Qf4+ 87. Kh1 Qa4 {Played: Qf4-f1} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.16"]
[White "Kiran, Manisha Mohanty"]
[Black "Das, Sayantan"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2133"]
[BlackElo "2424"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,67,0,0,0,0,0,0,8,0,98,62,82,52,233,233,248,264,250,241,235,246,338,192,198,194,238,207,222,234,232,224,218,223,236,208,280,148,130,0,268,0,125,0,250,231,347,299,305,0]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Bc5 9. Qd2 a6 10. O-O-O Nxd4 11. Bxd4 O-O {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} 12. Qf2 Qc7 13. Bd3 b5 {The position is equal.} 14. Kb1 {[#]} Rb8 $146 (14... Bxd4 $11 {keeps the balance.} 15. Qxd4 Bb7) ({Predecessor:} 14... Bxd4 15. Qxd4 Qc5 16. Ne2 b4 17. Rc1 Qxd4 18. Nxd4 Nc5 19. Rhd1 {1-0 (34) Bologan,V (2661)-Buhmann,R (2546) Gonfreville 2006}) 15. Ne2 b4 16. Rhf1 Bb7 $2 ({Better is} 16... Bxd4 $14 17. Qh4 (17. Qxd4 Nc5 $11) 17... h6 18. Nxd4 Nc5) 17. Qh4 $1 $18 {[%csl Gd3][%cal Rh4h7]} g6 18. Rf3 $1 {[%cal Rf3h3]} Rfc8 19. Rh3 $1 Nf8 20. g4 Qe7 {intending ...Qxh4.} 21. Qg3 (21. Qh6 $142 {Black must now prevent f5.} Bxd4 22. Nxd4) 21... Nd7 22. Qe3 Bxd4 23. Nxd4 Re8 {[#]} 24. Re1 $1 Qf8 25. Qg3 Qg7 26. Qh4 Rbc8 27. Ree3 Qh8 28. Qh6 (28. f5 $18) 28... Qg7 $16 29. Qh4 (29. Qg5 $16) 29... Qh8 $1 $18 30. Qh6 (30. f5 $18 {and White stays clearly on top.} Nxe5 {[#]} 31. Rxe5 $1 {[%mdl 512]} Qxe5 32. Qxh7+ {[%mdl 64] Double Attack} Kf8 33. Nf3) 30... Qg7 $16 31. Qh4 (31. Qg5 $16) 31... Qh8 $1 $18 32. Qe1 a5 (32... Nc5 $142 33. Qxb4 Qg7) 33. Bb5 Rc7 34. Bd3 $2 {Accuracy: White = 61%, Black = 49%.} ({White should play} 34. f5 $18) 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.17"]
[White "Khusenkhojaev, Muhammad"]
[Black "Kunal, M.."]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2420"]
[BlackElo "2288"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,56,0,0,30,0,13,0,52,20,6,-24,-19,-18,-11,-14,-6,-47,-10,-85,-83,-127,-135,-133,-132,-624,-607,-920,-793,-923,-923,-921,-920,-911,-913,-908,-911,-883,-868,-1912,-756]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Be7 5. Bg2 O-O 6. O-O dxc4 7. Ne5 Nc6 8. Nxc6 bxc6 9. Na3 Bxa3 10. bxa3 Rb8 {E05: Open Catalan: 5 Nf3 Be7} (10... Ba6 11. Qa4 Bb5 12. Qc2 Qxd4 13. Bb2 Qc5 14. Rfd1 Rfd8 15. a4 Ba6 16. Qc3 h6 17. Ba3 Qf5 18. Bxc6 Rab8 {½-½ (40) Nakamura,H (2777)-So,W (2780) chess.com INT 2018}) 11. Qd2 Bb7 $146 ({Predecessor:} 11... Qd6 12. Qc3 c5 13. dxc5 Qa6 14. Bf4 Bb7 15. Bxb7 Rxb7 16. Rfc1 Nd5 17. Qxc4 Qxa3 18. Bd2 {½-½ (55) Fridman,D (2620)-Ladva,O (2453) Riga 2016}) 12. Rb1 Qc8 (12... Ba6 $11 13. Rxb8 Qxb8) 13. Qa5 c5 14. Rxb7 Rxb7 15. Bxb7 Qxb7 16. Qxc5 Qa6 17. Bf4 c3 18. Re1 (18. Qxc3 $11 Qxe2 19. Bxc7) 18... Nd5 $17 19. Bc1 f5 $1 20. f3 {[#] Threatening e4.} Qa4 $1 21. Kf2 $2 {[%mdl 8192]} (21. Bg5 $17) 21... Rb8 $19 {Black is clearly winning.} 22. Bf4 Rb6 23. Bxc7 Rc6 {[%mdl 64] Double Attack} 24. Qa5 Qxd4+ 25. e3 Qd2+ {[%mdl 64] Double Attack} 26. Re2 {[#]} Qxe2+ $1 {[%mdl 576] Promotion} 27. Kxe2 c2 28. Bd6 Rc8 {Accuracy: White = 25%, Black = 71%.} (28... c1=Q $142 29. Qd8+ Kf7 30. Qd7+ Kf6 31. Qd8+ Kf7 32. Qf8+ Kg6 33. Qe8+ {[#]} Kh6 $1 {[%mdl 512]} 34. Qxe6+ Nf6 35. Bf4+ g5 36. Qxc6 Qxc6) 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.18"]
[White "Deshmukh, Anup"]
[Black "Viani Antonio Dcunha"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2163"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,78,25,49,37,39,26,26,23,28,23,28,18,20,16,18,31,19,16,16,8,32,20,16,33,35,19,13,0,0,0,18,7,29,39,17,0,392,395,364,393,366,374,432,431,419,408,606,210,220,212,205,210,197,-27,2270,678,29991,29992,29995,29996,29997,29998,29999]} 1. c4 g6 2. Nc3 Bg7 3. Nf3 d6 4. d4 Nf6 5. g3 O-O 6. Bg2 Nc6 7. O-O a6 8. b3 Rb8 9. Bb2 Bd7 10. Qd2 {E63: King's Indian: Fianchetto: Panno Variation with 7...a6} b5 11. cxb5 axb5 {[%cal Ba6b5,Bb5b4][%mdl 32]} 12. d5 {White has an edge.} Na5 $146 ({Predecessor:} 12... Na7 13. Nd4 Rb6 14. Rac1 Qc8 15. Rfd1 Qa6 16. a4 bxa4 17. Nxa4 Rbb8 18. Rxc7 {½-½ (37) Mareco,S (2583)-Delgado Ramirez,N (2570) Buenos Aires 2011}) 13. Nd4 b4 14. Nd1 e6 15. dxe6 fxe6 16. Nc2 Nc6 17. Bxc6 Bxc6 18. Nxb4 Ba8 19. f3 Qd7 20. Nd3 e5 21. N1f2 Rf7 22. Rac1 {[%cal Ba1c1,Bc1c7,Bc7f7][%mdl 32]} Rbf8 23. Rfd1 Qf5 24. Ne1 $36 {[%mdl 2048] White is more active.} Qh5 25. Qa5 Bh6 {Strongly threatening ...Be3.} 26. Rxc7 Be3 $2 {[%mdl 8192]} (26... Rxc7 $11 27. Qxc7 Be3 28. Qc4+ Kh8) 27. Rxf7 $18 Bxf2+ 28. Kxf2 Qxh2+ {[#]} 29. Ke3 $1 {Hoping for Rxf8+.} Qg1+ 30. Kd2 Kxf7 31. Qc7+ {[%mdl 64] Double Attack} Ke6 (31... Kg8 $142 32. Qxd6 Qxg3 33. Qe6+ Kg7 34. Bxe5 Qg5+ 35. Kc3 Qf5 36. Qxf5 gxf5) 32. Nd3 $2 (32. Ba3 Re8 33. Kc2) 32... Qxg3 33. Kc1 {And now Ba3 would win.} Nd5 34. Qxh7 Qg2 35. Kb1 $2 (35. Re1 $18) 35... Ne3 $2 {[%mdl 8192] [#]} (35... Qxe2 $11 36. Qxg6+ Nf6) 36. Rc1 (36. Nc5+ $142 $1 {[%mdl 512]} Kf5 (36... dxc5 37. Qd7+) 37. Rxd6) 36... Qxe2 37. Qxg6+ {White mates.} Rf6 {[#]} 38. Nf4+ $1 {[%mdl 512]} exf4 39. Qxf6+ {[%mdl 64] Double Attack} Kd5 40. Qf7# {Accuracy: White = 45%, Black = 51%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.21"]
[Round "6.19"]
[White "Karthikeyan, P.."]
[Black "Priyanka, Kumari"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2416"]
[BlackElo "1874"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,75,20,52,12,21,18,35,26,22,33,38,33,39,31,31,25,36,0,28,16,25,24,77,57,66,55,54,26,26,37,23,26,38,15,16,0,15,-6,-3,-3,0,-2,0,-14,-13,-13,-6,-6,-6,-5,-5,-21,-14,-13,-7,-7,-7,-7,-7,-7,-7,-8]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 d6 5. Bg2 O-O 6. O-O c6 7. Nc3 Bf5 8. Ne1 Be6 9. b3 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} d5 $1 10. Nd3 Ne4 11. Nxe4 {White is slightly better.} dxe4 12. Nc5 Bc8 13. Be3 $146 ({Of course not} 13. Bxe4 Qxd4 14. Qxd4 Bxd4 $17) ({Predecessor:} 13. Nxe4 Qxd4 14. Rb1 Qxd1 15. Rxd1 Nd7 16. Ba3 Re8 {1-0 (53) Bu,X (2730)-Rakhmanov,A (2653) Riadh 2017}) 13... f5 14. Qd2 b6 15. Na4 Nd7 16. Bh6 b5 {[#] And now ...Bxh6 would win.} 17. Bxg7 Kxg7 18. Nb2 e5 (18... Rb8 $11) 19. Rfd1 exd4 20. Qxd4+ Qf6 21. Qxf6+ (21. f3 {feels hotter.} a6 22. fxe4 Ne5 23. Qc5 Nd7 24. e5) 21... Nxf6 22. Rd6 Bd7 23. Rad1 Rf7 24. f3 Re8 {The position is equal.} 25. h3 h5 26. f4 Ree7 27. e3 Be8 28. Kf2 Rd7 29. Ke1 Rxd6 30. Rxd6 Rb7 31. Bf1 Kf7 32. cxb5 cxb5 33. Kd2 Ke7 34. Rd4 Rd7 35. Rxd7+ Bxd7 36. b4 Nd5 37. a3 $1 a6 38. Be2 {Accuracy: White = 65%, Black = 63%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.1"]
[White "Ponkratov, Pavel"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2622"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,100,20,31,0,8,-2,-6,-10,-7,-45,0,0,0,0,0,-35,-32,-31,-33,-25,-26,-43,0,-40,-45,-75,-75,-75,-75,-75,-74,-81,-85,-78,-78,-96,-78,-78,-78,-78,-78,-78,-78,-76,-70,-75,-72,-73,-72,-75,-67,-67,-65,-76,-43,-43,-43,-43,-43,-50,-48,-67,-69,-69,-65,-70,-70,-70,-67,-67,-67,-67,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,-41,-48,-41,-41,-41,-41,-41,-41,-41]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nf3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (7. Nde2 h5 8. Nd5 Nxd5 9. Qxd5 Nc6 10. Qd1 Be6 11. Nc3 Rc8 12. Be3 Ne7 13. Be2 d5 14. exd5 Nxd5 15. Nxd5 Qxd5 {½-½ (26) Wang,H (2730)-Giri,A (2783) St Petersburg 2018}) 7... Qc7 8. g4 h6 9. a4 $146 {The position is equal.} ({Predecessor:} 9. g5 hxg5 10. Bxg5 Nbd7 11. Qe2 b5 12. O-O-O Bb7 13. Nd5 Bxd5 14. exd5 Be7 {0-1 (58) Jusic,Z (2257)-Djurovic,G (2396) Zadar 2016}) 9... Be6 10. Be3 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]} 11. g5 hxg5 12. Nxg5 Nb6 13. Qd3 Rc8 $1 14. Nxe6 fxe6 15. Rg1 Nc4 16. Bc1 $1 Nh5 17. Nd1 Be7 18. Ne3 Nxe3 19. Bxe3 Qxc2 20. Rc1 {[#]} Qxd3 $1 21. Rxc8+ Kf7 {Hoping for ...Qb1+.} 22. Bxd3 Rxc8 23. Kd2 Nf6 24. Rc1 Rxc1 25. Kxc1 $17 {[%mdl 4096] Endgame KBB-KBN} d5 26. exd5 exd5 27. Bf5 Ne4 28. f3 Nd6 29. Bd7 Nc4 30. Bf2 Bg5+ 31. Kc2 Be3 32. Bg3 Nb6 33. Bg4 {Black is slightly better.} Bd4 34. b3 Ke7 $1 35. Be1 Kd6 36. Ba5 Nd7 37. Bb4+ Kc6 38. Be7 a5 39. Bf5 b6 40. b4 axb4 41. Bxb4 Nf6 42. Bf8 Nh5 43. Bg6 Nf4 44. Be8+ Kc7 45. Bxg7 Nxh3 46. Bh6 Kd6 47. Kd3 Ke6 48. Bd2 Bc5 49. Bh5 {[#] Black must now prevent Bg4+.} Kf6 50. Ke2 Nf4+ {Accuracy: White = 72%, Black = 75%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.2"]
[White "Visakh N R"]
[Black "Yudin, Sergei"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2518"]
[BlackElo "2508"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,111,28,24,54,12,20,22,23,22,43,5,9,13,0,0,2,0,3,0,0,0,41,30,53,41,59,45,67,42,60,53,50,25,33,38,26,11,23,16,12,0,25,30,27,35,48,22,39,32,47,66,97,96,99,97,115,54,45,50,61,61,62,8,10,17,70,0,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,-8,-8,-8]} 1. Nf3 d5 2. g3 e6 3. Bg2 Nf6 4. O-O b5 5. d3 Bb7 6. Nbd2 Nbd7 {A05: Réti Opening: 1 Nf3 Nf6} 7. a4 (7. c4 bxc4 8. dxc4 Bd6 9. cxd5 exd5 10. Nd4 O-O 11. N2f3 Re8 12. Nf5 Bf8 13. b4 c6 14. Rb1 {½-½ (51) Svidler,P (2765)-Adly,A (2637) Riadh 2017}) 7... b4 8. a5 Rb8 9. Re1 Nc5 10. c3 bxc3 11. bxc3 Be7 12. Ba3 O-O 13. c4 Na6 $146 ({Predecessor:} 13... dxc4 14. Nxc4 {½-½ (53) Podzielny,K (2455)-Palkovi,J (2420) Germany 1995}) 14. cxd5 Bxa3 15. Rxa3 exd5 16. d4 c5 17. dxc5 $1 Nxc5 18. Qa1 Nce4 19. Rd1 Qe7 20. Nd4 g6 21. e3 Ng4 22. Nxe4 dxe4 23. Rb3 Ba8 24. Rxb8 Rxb8 25. Rb1 $40 {[%mdl 128] Black needs to defend precisely.} Qc7 26. Rc1 Qe7 27. Qc3 Ne5 28. h3 Nd3 29. Qc7 Qxc7 30. Rxc7 Rb1+ 31. Kh2 {Black must now prevent Rc8+.} Bd5 32. Rd7 Nb4 {[#]} 33. Rxd5 $1 {[%mdl 512]} Nxd5 $14 34. Bxe4 {[%mdl 64] Double Attack} Ra1 $1 {aiming for ...Nc3.} 35. Bxd5 {Hoping for Nc6.} Rxa5 {[%mdl 4096] Endgame} 36. e4 (36. Bc6 $14) 36... Ra1 37. Kg2 a5 $1 38. Nb5 ({White should play} 38. Kf3 $1 $14) 38... Rc1 {The position is equal.} 39. Nd6 a4 40. Nxf7 Kf8 41. Ne5 Rc3 42. Nc6 Rb3 43. Ne5 Rc3 44. Nc6 {Nb4 is the strong threat.} Rb3 45. Na5 Rd3 46. Nc4 (46. Kf1 {seems wilder.} a3 47. Ke2 Rc3 48. Kd2 Rf3 49. Ke2) 46... a3 47. Nxa3 Rxa3 $11 {KR-KB} 48. h4 Ke7 49. g4 $1 Kf6 50. f4 Rc3 51. e5+ Kg7 52. Bf3 h6 53. Kf2 g5 54. hxg5 hxg5 55. fxg5 Rc5 56. Kg3 {Accuracy: White = 56%, Black = 74%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.3"]
[White "Aleksandrov, Aleksej"]
[Black "Taher, Yoseph Theolifus"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "2592"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,10,23,16,11,-16,-6,-17,-5,0,14,14,14,14,24,16,21,20,22,15,30,49,54,29,17,-2,-1,-8,-8,-7,-3,-8,-8,-8,-8,-8,-8,-12,0,0,0,-8,0,0,0,0,0,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 dxc4 3. e4 b5 4. a4 c6 5. b3 {[#]} (5. Nc3 a6 6. Nf3 e6 7. Be2 Nf6 8. axb5 cxb5 9. Nxb5 axb5 10. Rxa8 Bb7 11. Ra1 Bb4+ 12. Bd2 Bxd2+ 13. Qxd2 Nxe4 {0-1 (36) Korobov,A (2652)-Andreikin,D (2712) Huaian 2017}) 5... e5 $1 {[%mdl 512] Threatens to win with ...Bb4+.} 6. axb5 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4} (6. dxe5 Qxd1+) 6... cxb5 {Strongly threatening ...Bb4+.} 7. Nf3 exd4 8. Qxd4 Nc6 9. Qxd8+ Nxd8 10. Nc3 $146 ({Predecessor:} 10. bxc4 b4 11. Bd3 Ne6 12. Bc2 a5 {½-½ (64) Beekes,N (1398)-Vio,M (1419) IECG email 2007}) 10... Bb4 11. Bd2 Bxc3 12. Bxc3 Nf6 13. bxc4 Nxe4 14. Bxg7 Rg8 15. Bd4 bxc4 16. Ne5 Nd6 17. Be2 {The position is equal.} Ne6 18. Bc3 Bb7 19. Bb4 O-O-O {[#] And now ...Nd4 would win.} 20. O-O-O $132 {[%mdl 2048] White is not holding back} Nf4 21. Rhe1 Nxg2 22. Bxd6 Nxe1 23. Bxc4 Rxd6 24. Rxd6 Nf3 25. Nxf7 Rg1+ 26. Kb2 Rg2 27. Kc3 Rxf2 28. h3 Kc7 {...Ne5! is the strong threat.} 29. Re6 Ng1 30. Re7+ Kb6 31. Re6+ Kc7 32. Re7+ Kb6 33. Nd6 Rf3+ 34. Kd4 Ba6 35. Bxa6 Kxa6 {Accuracy: White = 60%, Black = 66%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.4"]
[White "Goganov, Aleksey"]
[Black "Deshmukh, Anup"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2583"]
[BlackElo "2163"]
[Annotator "RC"]
[PlyCount "72"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:01:02]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:05]} 3. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 1:30:23]} 4. Nc3 {[%emt 0:01:34]} e6 {[%emt 0:00:00]} 5. Bg5 {[%emt 0:00:21]} h6 {[%emt 0:00:00]} 6. Bxf6 {[%emt 0:01:56]} Qxf6 {[%emt 0:00:00]} 7. e3 {[%emt 0:01:56]} Nd7 {[%emt 0:00:00]} 8. Be2 {[%emt 0:00:33]} Bb4 {[%emt 0:00:00]} 9. Qb3 {[%emt 0:15:01]} Bxc3+ {[%emt 0:00:00]} 10. Qxc3 {[%emt 0:00:03]} O-O {[%emt 0:00:00]} 11. O-O {[%emt 0:01:01]} dxc4 {[%emt 0:00:00]} 12. Bxc4 {[%emt 0:00:09]} b6 {[%emt 0:00:00]} 13. Bd3 {[%emt 0:12:28]} Bb7 {[%emt 0:00:00]} 14. Be4 {[%emt 0:03:24]} Qe7 {[%emt 0:00:00]} 15. Nd2 {[%emt 0:03:58]} Rac8 {[%emt 0:00:00]} 16. Rac1 {[%emt 0:01:13]} Rfd8 {[%emt 0:00:00]} 17. Bf3 {[%emt 0:01:51]} Nf6 {[%emt 0:00:00]} 18. Rfd1 {[%emt 0:04:21]} c5 {[%emt 0:00:00]} 19. Qa3 {[%emt 0:00:04]} Bxf3 {[%emt 0:00:00]} 20. Nxf3 {[%emt 0:00:04]} Ne4 {[%emt 0:00:00]} 21. Qa6 {[%emt 0:03:30]} Rc7 {[%emt 0:00:00]} 22. Qd3 {[%emt 0:03:43]} f5 {[%emt 0:00:00]} 23. Qe2 {[%emt 0:00:09]} cxd4 {[%emt 0:00:00]} 24. Nxd4 {[%emt 0:00:45]} Rdc8 {[%emt 0:00:00]} 25. Rxc7 {[%emt 0:00:58]} Rxc7 {[%emt 0:00:00]} 26. Qb5 {[%emt 0:04:26]} Rc5 {[%emt 0:00:00]} 27. Qb3 {[%emt 0:01:07]} Kf7 {[%emt 0:00:00]} 28. a3 {[%emt 0:08:58]} Qe8 {[%emt 0:00:00]} 29. h3 Qf8 {[%emt 0:00:00]} 30. f3 Ng5 {[%emt 0:00:00]} 31. Nb5 {[%emt 0:01:30]} Kg8 {[%emt 0:00:00]} 32. Nd6 {[%emt 0:00:30]} Qb8 {[%emt 0:00:00]} 33. e4 {[%emt 0:00:30]} Kh7 {[%emt 0:00:06]} 34. Qd3 {[%emt 0:00:30]} fxe4 {[%emt 0:00:30]} 35. Nxe4 {[%emt 0:00:30]} Nxe4 {[%emt 0:00:30]} 36. Qxe4+ {[%emt 0:00:30]} Kh8 {[%emt 0:00:30]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.5"]
[White "Samant Aditya S"]
[Black "Bogdanovich, Stanislav"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "2296"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,88,39,35,20,27,29,33,51,36,33,-6,0,-6,-8,-2,-4,-8,-16,-11,0,-31,0,-10,0,0,0,6,1,4,7,-15,-22,-19,-16,-8,-10,-10,-11,-10,-20,-79,-86,-82,-82,-71,-93,-95,-71,-61,-66,-96,-94,-94,-85,-177,-178,-209,-209,-177,-162,-183,-170,-166,-145,-345,-347,-686,-662,-855,-618,-842,-841,-895,-516,-516,-480,-1270,-1233]} 1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 g6 5. h3 Bg7 6. Be3 O-O 7. d5 Nb8 {B08: Pirc Defence: Classical System} 8. Bc4 c6 (8... a6 9. a4 e6 10. dxe6 Bxe6 11. Bxe6 fxe6 12. e5 dxe5 13. Qxd8 Rxd8 {1-0 (53) Svidler,P (2737)-Zubov,A (2597) St Petersburg 2018}) 9. a4 e6 {White is slightly better.} 10. dxe6 $146 ({Predecessor:} 10. O-O exd5 11. exd5 c5 12. Re1 Re8 13. Qd2 Bf5 14. Nh4 Ne4 15. Nxe4 Bxe4 {1-0 (30) Luukkonen,T (2100)-Nyysti,S Laukaa 1996}) 10... Bxe6 11. Be2 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. c3 Nd7 15. O-O Re8 16. Qd2 Nb6 17. Rfd1 Qe7 18. Re1 Rad8 19. Qc1 Nc8 20. Bg5 Bf6 21. Bxf6 Qxf6 22. Nh2 h5 23. Bf3 Be6 24. a5 a6 25. Ra4 Nd6 26. Qf4 (26. Rb4 $11) 26... Qxf4 $17 27. Rxf4 Bb3 $36 {[%mdl 2048] Black is really pushing.} 28. Rxe8+ Rxe8 29. g4 Re5 30. gxh5 gxh5 31. Nf1 Rxa5 32. Ng3 Kf8 33. Nxh5 {[#]} (33. Rd4 $17 {was worth a try.} Ke7 34. Bxh5) 33... Ra2 $1 $19 34. h4 Rxb2 {...a5 is the strong threat.} 35. Nf6 Be6 36. Nh7+ Kg7 37. Ng5 Bb3 {Strongly threatening ...a5.} 38. h5 $2 (38. Rg4 $17 Kh6 39. Rd4) 38... a5 {[%cal Ba6a5,Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 39. Nh3 $2 (39. Rd4 Nb5 40. Rg4) 39... a4 {[#] And now ...a3 would win.Black is clearly winning.} 40. Rd4 Nf5 41. Rg4+ Kh6 42. Rf4 a3 43. Rxf5 a2 44. Rf6+ (44. Ra5 $142) 44... Kg7 {Accuracy: White = 41%, Black = 68%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.6"]
[White "Harshavardhan G B"]
[Black "Vasquez Schroeder, Rodrigo"]
[Result "1/2-1/2"]
[ECO "D44"]
[WhiteElo "2343"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,77,5,0,0,0,0,-19,27,25,40,26,37,-1,0,-97,-97,-77,-39,-43,-25,-83,-108,-213,-196,-214,-181,-230,-229,-225,-222,-807,-431,-435,-410,-410,-399,-385,-245,-237,-240,-254,0,0,0,-259,0,0,0,-244]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3 Rg8 12. h4 Rxg5 13. hxg5 Nd5 14. g6 fxg6 15. Qg4 Qe7 16. Qxg6+ Qf7 {D44: Semi-Slav: Botvinnik System} 17. Qxf7+ Kxf7 18. Bg2 Nxc3 19. bxc3 Rb8 20. Bxc6 Bb7 21. Rh7+ Kg6 {[#]} 22. Bxd7 $146 (22. Bxb7 $11 {remains equal.} Kxh7 23. Bc6) ({Predecessor:} 22. Rxd7 Bxc6 23. Rxa7 Bf3 24. Kd2 {1-0 (43) Shirov,A (2610)-Stisis,Y (2280) London 1991}) 22... Kxh7 $17 23. Bxe6 Ba3 {aiming for ...Bb2.} 24. Kd2 $1 Kg6 25. f4 (25. Rf1 $11 {keeps the balance.}) 25... Rh8 $1 {[%cal Rh8h2]} 26. Rb1 (26. Re1 $17 {was necessary.}) 26... Rh2+ $19 27. Ke3 Bb2 $1 28. d5 b4 $1 {[%cal Bb5b4,Bb4c3,Bc3c2][%mdl 32]} 29. d6 bxc3 30. g4 $2 (30. Bxc4 c2 31. Bd3+ Kf7 32. Bxc2 Rxc2 33. f5) 30... c2 {( -> ...Rh3+)} 31. Bf5+ Kf7 32. e6+ Kf6 33. Bxc2 Rxc2 34. d7 {[#]} Ke7 $1 35. f5 {[#] Strongly threatening Rxb2!} Rc3+ $2 (35... Kd8 $1 $19 {Hoping for ...Rh2.} 36. g5 Bd5) 36. Ke2 $2 {[%mdl 8192]} (36. Kf2 $11 {and White is okay.} Rc2+ 37. Ke3) 36... Rc2+ 37. Ke3 {Threatens to win with Rxb2!} Rc3+ 38. Ke2 {f6+! is the strong threat.} Rc2+ 39. Ke3 {Accuracy: White = 52%, Black = 50%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.7"]
[White "Kunal, M.."]
[Black "Vishnu Prasanna. V"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2288"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,98,20,26,-6,4,-53,-23,-73,-73,-68,-68,-118,-56,-51,-50,-43,-49,-102,-61,-57,-61,-61,-63,-97,-56,-79,-76,-80,-88,-91,-55,-100,-100,-106,-86,-141,-138,-163,-131,-150,-148,-177,-178,-210,-203,-238,-241,-229,-234,-269,-274,-265,-221,-224,-210,-215,-221,-217,-213,-210,-208,-392,-342,-1031,-1010,-914,-403,-422,-418,-449,-444,-440,-387,-444,-412,-561,-543,-669,-713,-1387,-1352,-1351,-1296,-1467,-1314,-1110,-1089]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. Nc3 Nc6 7. d5 Na5 8. Nd4 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems} (8. h3 c6 9. e4 Bd7 10. Qe2 cxd5 11. exd5 Rc8 12. Rd1 Re8 13. Nd4 Qb6 14. a4 a6 15. Ra2 h5 {1-0 (48) Bauer,C (2562)-Ivanchuk,V (2719) Neum 2000}) 8... Bd7 9. b4 $146 (9. a4 $11) ({Predecessor:} 9. h3 Qc8 10. Kh2 c5 11. Nb3 Nc4 12. a4 b6 13. e4 a6 14. f4 Ne8 15. Qe2 b5 16. axb5 Bxb5 17. Nxb5 axb5 18. Rxa8 Qxa8 {1-0 (32) Sandipan,C (2574)-Michna,C (2272) Germany 2016}) 9... Nc4 10. Qd3 {Black has an edge.} Ne5 11. Qd1 c6 12. Rb1 Rc8 ({Black should try} 12... cxd5 $17 13. Nxd5 Nxd5 14. Bxd5 Qc7) 13. dxc6 $15 Nxc6 14. Nxc6 Bxc6 15. Nd5 (15. e4 $1 $15) 15... Ba4 16. Ne3 {[#]} d5 $1 {[%mdl 512] Threatens to win with ...d4.} 17. Bb2 (17. Nxd5 Bxc2) 17... e6 18. Bd4 b6 19. Qd3 Qc7 20. Qa3 Bb5 $36 {[%mdl 2048] Black is on the roll.} 21. Qb2 Nh5 22. Bf3 Bxd4 23. Qxd4 Qc3 24. Qh4 (24. Rfd1 $142) 24... Qf6 $17 25. Qh3 Ng7 {Played: Qf6-g5} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.8"]
[White "Pranav Vijay"]
[Black "Mchedlishvili, Mikheil"]
[Result "0-1"]
[ECO "B83"]
[WhiteElo "2265"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,67,13,0,0,3,12,-6,0,-4,16,8,16,15,11,4,0,-3,16,5,3,-691,-690,-691,-677,-686,-677,-680,-659,-677,-670,-735,-739,-716,-693,-775,-749,-889,-877,-1109,-812,-29991,-29991,-29991,-1326,-1395,-1395,-29992,-29993,-29999]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Be7 8. Be3 O-O 9. f4 d6 10. Kh1 Nxd4 11. Qxd4 b6 {B83: Sicilian Scheveningen: 6 Be2, lines without ...a6} 12. Bf3 {Threatening e5.} Bb7 13. Nb5 Qb8 {The position is equal.} 14. c4 Rd8 15. Rad1 (15. Qd3 a6 16. Nc3 Qc7 17. Rac1 Rac8 18. b3 Nd7 19. Rfd1 {½-½ (26) Wang,H (2709)-Safarli,E (2639) Riadh 2017}) 15... Bc6 16. Nc3 Nd7 17. Qd2 a6 18. Qc2 $146 ({Predecessor:} 18. Bd4 b5 19. cxb5 axb5 {0-1 (77) Wan,Y (2482)-Bok,B (2572) Groningen 2014}) 18... Rc8 19. e5 {White wants to play exd6.} Bxf3 20. exd6 $2 {[%mdl 8192]} (20. Rxf3 $11 Rxc4 21. exd6) 20... Bxd1 $19 21. Rxd1 Bxd6 22. f5 Nf6 23. fxe6 fxe6 24. Bg5 Be5 {aiming for ...Bxc3.} 25. Ne4 Qc7 26. Bxf6 Bxf6 27. b3 Rf8 28. h3 Rad8 29. Re1 Qf4 30. Nf2 {[#]} Rd2 $1 31. Nd3 Rxc2 (31... Qg5 $142 32. Re2 Rxc2 33. Rxc2 Qe3 34. Rc1 Qxd3 35. Re1 Qg3 36. Re3 Qxe3 37. b4 Qe1+ {[%mdl 64] Double Attack} 38. Kh2 Be5+ 39. g3 Rf2#) 32. Nxf4 {[#]} Bh4 $1 33. Re4 Bg3 34. Nxe6 Rf1# {Accuracy: White = 32%, Black = 62%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.9"]
[White "Rozum, Ivan"]
[Black "Manik, Mikulas"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2573"]
[BlackElo "2378"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,98,28,69,34,28,22,26,25,37,35,43,11,22,0,30,13,60,56,79,83,78,71,81,49,56,63,101,107,127,129,122,122,120,120,120,119,116,90,91,97,92,90,90,93,97,89,83,81,97,98,111,110,103,79,100,82,137,112,111,101,152,137,137,136,153,128,141,128,175,159,273,219,366,0,0,0,0,8,8,8,1285,1285,1285,1277,1149,1040,1071]} 1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. g3 Bg7 5. Bg2 O-O 6. Nc3 Nc6 7. O-O e5 8. dxe5 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (8. d5 $5 {[%cal Rd5c6]} Ne7 9. e4 $14) (8. d5 Nb8 9. e4 a5 10. Ne1 Na6 11. Bg5 h6 12. Be3 Ng4 13. Bd2 f5 14. Nd3 b6 15. f3 Nf6 16. Be3 Nc5 17. Nxc5 bxc5 {0-1 (26) Ivanchuk,V (2714)-Amin,B (2709) Zagreb 2018}) 8... Nxe5 9. b3 Nxf3+ 10. Bxf3 {White has an edge.} Re8 11. Qd2 c6 12. Bb2 Bh3 $146 ({Predecessor:} 12... Qc7 13. Bg2 Bf5 14. Rad1 Rad8 15. Rfe1 Re7 16. e4 Bg4 {0-1 (16) Palang,A-Wood,A (1577) ICCF email 2012}) 13. Rfd1 Qa5 14. Na4 Qf5 15. Qxd6 Ne4 16. Qd3 Bxb2 17. Nxb2 Qf6 18. Qd4 Qxd4 19. Rxd4 Nc3 20. Rd2 Rad8 21. Rc2 $1 {[%cal Rc2c3]} Ne4 22. Bxe4 Rxe4 23. Rd1 Rxd1+ 24. Nxd1 $16 {[%mdl 4096] Endgame KRB-KRN} Rd4 {[%cal Rd4d1]} 25. Ne3 (25. Nc3 {seems wilder.} Bf5 26. Rb2 g5 27. f3 Bg6 28. Kf2) 25... g5 26. f3 f5 27. Kf2 f4 28. Ng2 Bxg2 29. Kxg2 {KR-KR} Kf7 30. Kf2 Kf6 31. e3 Rd1 32. exf4 gxf4 33. Re2 c5 34. g4 b6 (34... a5 $142) 35. Kg2 $1 a5 36. h4 $1 h6 ({Better is} 36... Rd6) 37. Re4 $1 Rd2+ 38. Kh3 Rxa2 39. Rxf4+ Kg7 40. Re4 Ra3 41. g5 hxg5 (41... h5 $16) 42. hxg5 $18 a4 ({Much weaker is} 42... Rxb3 $6 43. Kg4 $14) (42... Kf8 $142 43. Kg4 Rxb3) 43. bxa4 $2 ({White must play} 43. Re7+ $1 $18 Kf8 44. Rb7) 43... Rxf3+ $11 44. Kg4 Ra3 45. Re7+ Kg6 46. Re6+ Kf7 $2 {[%mdl 8192]} (46... Kg7 $11) 47. Rxb6 $18 {White is clearly winning.} Rxa4 {[#]} 48. Rf6+ $1 Kg7 {[#]} 49. Rf4 $1 Ra1 {Accuracy: White = 79%, Black = 52%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.10"]
[White "David, Alberto"]
[Black "Eraschenkov, Denis"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "2562"]
[BlackElo "2370"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,78,52,5,20,26,36,7,22,0,0,-15,58,18,18,-18,-7,-32,-22,-48,0,0,0,-54,-41,-40,-55,-50,-63,-43,-34,-44,-47,-37,-46,-29,-22,-30,-39,-55,-63,-72,-83,-72,-71,-66,-53,-79,-82,-159,-173,-156,-167,-175,-168,-159,-152,-617,-596,-589,-589]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 cxd4 8. exd4 Be7 9. a3 O-O 10. Re1 a6 11. Bb3 Qd6 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} (11... b5 12. d5 exd5 13. Nxd5 Nxd5 14. Bxd5 Bb7 15. Bf4 Bf6 16. Rc1 Rc8 17. b4 Ba8 18. Qb3 Nd4 19. Rxc8 Nxf3+ 20. Qxf3 Qxc8 21. g3 Bxd5 22. Qxd5 {½-½ (35) Wang,H (2737)-Karjakin,S (2775) Beijing 2012}) 12. g3 Na5 $146 ({Predecessor:} 12... Nd5 13. Nxd5 exd5 14. Ne5 Be6 15. Bf4 Nxe5 16. dxe5 Qb6 17. Bc2 Rac8 18. Qd2 {½-½ (18) Hansen,C (2595)-Degerman,L (2490) Malmo 1998}) 13. Bc2 b5 $1 {The position is equal.} 14. Bf4 Qb6 15. d5 Rd8 (15... Nc4 $11) 16. Qd3 Bb7 17. Be5 (17. Be3 $5 {[%cal Re3b6]} Qd6 18. Bf4 $11) 17... g6 {[%cal Rf6d5]} 18. Bd4 Qd6 19. Be5 Qb6 {[%cal Rf6d5]} 20. Bd4 Qd6 21. Qd2 (21. Be5 $11 Qd7 22. d6) 21... Bxd5 $15 22. Nxd5 Qxd5 23. Qf4 Nh5 24. Qe3 Nc4 25. Qe2 $1 Rac8 26. Be4 Qd7 27. Red1 Qc7 28. Rac1 {And now b3 would win.} Qb8 29. b3 Nd6 30. Bb1 Bf6 31. Be5 {[#] Black must now prevent Rxc8.} Rxc1 32. Rxc1 Qb6 33. g4 Bxe5 34. Nxe5 (34. Qxe5 $142 Ng7 35. h3) 34... Nf4 $17 35. Qf3 Qd4 $40 {[%mdl 128] Black attacks with force.} 36. Nc6 Qd2 37. Rf1 Re8 38. Qd1 $2 (38. Qe3 $17 Ne2+ 39. Kg2 Qd5+ 40. Qf3) 38... Qc3 $19 {( -> ...Qh3)} 39. Nd4 {[#]} Qxd4 $1 {[%mdl 576] Remove Defender. Accuracy: White = 38%, Black = 66%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.11"]
[White "Muthaiah AL"]
[Black "Fedorov, Alexei"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2367"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,60,33,56,54,54,47,56,56,41,56,66,25,45,21,17,23,25,8,8,8,8,8,8,8,8,4,8,8,40,0,0,0,19,0,15,0,0,-4,-4,-4,0,0,0,0,0,0,0]} 1. Nf3 g6 2. d4 Nf6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nc6 7. Nc3 Bf5 8. Ne1 Na5 9. e4 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (9. b3 c5 10. Nf3 Ne4 11. Bb2 Nc6 12. Nd5 Bg4 13. Qc2 Bxf3 14. exf3 Nf6 15. dxc5 dxc5 16. Rad1 Nd7 {1-0 (67) Sargissian,G (2671)-Smirin,I (2663) Khanty-Mansiysk 2013}) 9... Bg4 10. f3 Bd7 11. b3 {White is slightly better.} c5 {[#] Threatens to win with ...Nxe4!} 12. Nc2 Nc6 13. Be3 Qa5 14. Qd2 e5 15. dxe5 dxe5 16. Nd5 {[#] aiming for Nxf6+.} Qxd2 $146 ({Predecessor:} 16... Nxd5 17. Qxa5 Nxa5 18. cxd5 {½-½ (51) Partenheimer,A (2206)-Vovk,Y (2564) Dieren 2011}) 17. Bxd2 Nxd5 18. exd5 Nd4 19. Nxd4 exd4 20. Rfe1 Rfe8 21. Bf1 Be5 22. Bd3 (22. b4 $5 {[%cal Rb4c5]}) 22... a5 {The position is equal.} 23. a4 b6 24. Kf2 Bd6 25. Rxe8+ (25. Bh6 {is more complex.} f6 26. h4 Kf7 27. Rxe8 Rxe8 28. Rg1) 25... Rxe8 26. Re1 (26. g4 {is interesting.} Kg7 27. h4 h6 28. Rg1 Bh2 29. Rg2) 26... Rxe1 27. Bxe1 f6 28. Bd2 Kf7 29. h4 h5 30. Kg2 Kg7 {Accuracy: White = 56%, Black = 84%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.12"]
[White "Stupak, Kirill"]
[Black "Sidhant, Mohapatra"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2506"]
[BlackElo "2346"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,81,0,0,3,-9,-6,-7,-5,-32,-19,-35,-22,-20,-21,-30,53,50,33,43,70,100,98,87,94,91,89,81,79,68,78,78,101,53,89,91,101,101,107,108,114,93,87,86,82,83,98,78,91,78,118,116,102,100,131,121,127,91,89,62,56,15,72,27,61,67,223,198,237,235,304,302]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. g3 dxc4 6. Bg2 b5 7. Ne5 a6 {[%cal Ba7a6,Ba6a5][%mdl 32] E04: Open Catalan: 5 Nf3} 8. O-O Bb7 $1 9. b3 b4 {The position is equal.} 10. Ne4 Nxe4 11. Bxe4 c3 12. a3 a5 $1 13. Qd3 {[#]} Nd7 $146 (13... Bd6 $11) ({Predecessor:} 13... Be7 14. axb4 Bxb4 15. Ba3 {1-0 (33) Sokolov,I (2584)-Bok,B (2645) Amsterdam 2019}) 14. Bxc6 $14 Bxc6 15. Nxc6 Qc8 16. d5 Nc5 17. Qc4 exd5 18. Qxd5 Qe6 19. Qxe6+ fxe6 20. axb4 Nxb3 21. Ra4 Ra6 22. Nxa5 Be7 {White should prevent ...0-0.} 23. Be3 O-O {With the idea ...c2.} 24. Rb1 Nxa5 25. bxa5 Rc8 26. Rc1 Bf6 27. Bb6 Rc6 28. Rb4 c2 29. Rb5 Kf7 30. Kf1 Ke8 31. e3 Ra8 32. Ke2 Be7 {and if ...Ba3 works, Black does fine.} 33. Rb3 Bd8 34. Bd4 Rxa5 35. Bxg7 {Threatens to win with Rc3.} e5 $1 36. f4 exf4 (36... Bc7 $11 {remains equal.}) 37. exf4 {Rc3 is the strong threat.} Rac5 38. Bd4 Rd5 $2 {[#]} (38... Rc4 $14 39. Bb2 R4c5) 39. Rc3 $18 Re6+ 40. Re3 Rxe3+ 41. Kxe3 {Accuracy: White = 74%, Black = 50%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.13"]
[White "Nitin, S.."]
[Black "Venkatesh, M.R."]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2347"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,54,5,11,3,13,11,17,9,0,10,29,22,78,77,104,29,34,27,32,32,33,25,27,30,44,9,2,-26,-30,-208,-211,-212,-217,-193,-193,-294,-294,-393,-398,-512,-373]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. d4 d5 8. e5 Ne4 9. Be3 {B31: Sicilian: 2...Nc6 3 Bb5 g6} cxd4 10. cxd4 Qb6 11. Bxc6 {The position is equal.} bxc6 12. Qc1 Rb8 (12... a5 13. Nc3 Nxc3 14. Qxc3 Bf5 15. Nd2 Rfb8 16. b3 a4 17. h3 Qa5 18. Qxa5 Rxa5 19. bxa4 Rxa4 {1-0 (59) Giri,A (2776)-Le,Q (2713) Bucharest 2019}) 13. b3 {[#]} Ba6 $146 (13... a5 $11) ({Predecessor:} 13... f6 14. Nc3 Nxc3 15. Qxc3 Bg4 16. exf6 exf6 17. Bf4 Rbc8 18. Bd6 Rfe8 19. Rxe8+ Rxe8 {½-½ (51) Petrov,N (2586)-Halkias,S (2530) Arco 2019}) 14. Nc3 $16 f6 15. Nxe4 (15. Na4 $16 Qb7 16. Bh6) 15... dxe4 $11 16. d5 Qa5 17. Nd4 Qxd5 18. Qxc6 Bb7 19. Qe6+ Kh8 20. Rac1 f5 $1 21. Rc7 (21. Qxd5 {seems wilder.} Bxd5 22. Rc5 e6 23. Bf4 Rfc8 24. Rec1) 21... f4 22. Qxe7 $2 {[#]} (22. Qxd5 $11 Bxd5 23. Bc1) 22... Qxe5 $19 23. Bxf4 Qxe7 ({Not} 23... Rxf4 24. Ne6 $16) 24. Rxe7 Bxd4 25. Bg3 (25. g3 {was called for.}) 25... Kg8 26. Rd1 Rbd8 {[#] ( -> ...Bxf2+!)} 27. Rc1 Ba8 {Accuracy: White = 38%, Black = 63%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.14"]
[White "Karthik Venkataraman"]
[Black "Girinath, P.D.S."]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "2479"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,62,74,83,47,57,50,56,59,72,23,60,35,118,31,43,33,35,0,0,0,0,-161,-141,-159,-133,-147,-132,-280,-240,-253,-124,-131,-119,-108,-118,-377,-233,-207,-202,-302,-321,-268,-223,-504,-493,-506,-499,-499,-498,-834,-806,-769,-655,-633,-436]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 Nf6 5. exf5 Nd4 6. Nxd4 {C63: Ruy Lopez: Schliemann/Jaenisch Defence} (6. Ba4 c6 7. O-O d5 8. Nxe5 Bd6 9. c3 Bxe5 10. Re1 O-O 11. Rxe5 Nxf5 12. Nd2 Nh4 13. h3 {1-0 (53) Najer,E (2653)-Sokolov,I (2650) Dubai 2014}) 6... exd4 7. O-O c6 8. Ba4 $146 {White is slightly better.} ({Predecessor:} 8. Qe2+ Qe7 9. Qxe7+ Bxe7 10. Bc4 d5 11. Bb3 Bxf5 12. Nd2 O-O-O 13. Nf3 {1-0 (35) Grabner,H-Casny,G DDR 1987}) 8... d5 9. Qf3 Be7 10. Bb3 Qd7 (10... O-O $14) 11. Qf4 (11. Re1 $16) 11... Qxf5 12. Qxd4 O-O 13. Qf4 Qh5 {And now ...Ng4 would win.} 14. Qg5 Qf7 15. Qd2 $2 (15. Qf4 $1 $11 {and White is okay.}) 15... Bd6 $1 $19 {[%mdl 1024] Black has strong compensation.} 16. f4 Bf5 17. Nc3 Rae8 $40 {[%mdl 128] White is in trouble.} 18. Qf2 (18. h3 $17) 18... Ng4 $1 {[%cal Rg4f2]} 19. Qd2 Re7 ({Not} 19... Bc5+ 20. d4 $17) (19... Qf6 $19 {White must now prevent ...Bc5+.} 20. h3 Bc5+ 21. Kh1 Re3 22. Nxd5 cxd5) 20. h3 $17 Ne3 21. Rf3 Rfe8 22. d4 $2 {[%mdl 8192]} (22. Rxe3 $17 Rxe3 23. Qxe3 Rxe3 24. Bxe3) 22... Nc4 23. Bxc4 dxc4 24. Qf2 (24. Kh2 $142) 24... Re1+ $19 25. Kh2 Bb4 26. b3 $2 (26. Rb1 {keeps fighting.}) 26... Bxc3 {Black is clearly winning.} 27. Rxc3 R8e2 28. Qh4 {[#]} Qd5 $1 {[%csl Gd5][%cal Re2g2][%mdl 512]} 29. Qg5 (29. Rg3 $142 Qxd4 {[#]} 30. Be3 $1 {[%mdl 512]} Rxe3 31. Rxe1 Rxe1 32. Rxg7+ $1 {[%mdl 512]} Kxg7 33. Qxe1 Qxf4+ 34. Kg1) 29... Be4 {( -> ...Qxg5)} 30. Rg3 Qxg5 31. Rxg5 {If only White now had time for Bb2....} Rxc2 {Accuracy: White = 19%, Black = 63%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.15"]
[White "Pranesh M"]
[Black "Neverov, Valeriy"]
[Result "1/2-1/2"]
[ECO "B66"]
[WhiteElo "2317"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,122,50,54,52,6,63,37,21,17,42,22,70,67,79,77,83,62,65,66,71,53,76,71,79,76,88,88,98,95,89,62,97,93,93,94,98,96,98,40,40,42,41,43,45,45,65,65,65,65,65,65,72,72,72,72,94,94,94,94,94,94,94,94,94,0,94,94,94,94,94,94,94,94,94,94,94,94,94,83,83,40,40,40,40,40,40,40,40,40,40,8,8,8,8,8,8,8,8,8,8,8,8]} 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 Be7 9. f4 Nxd4 10. Qxd4 b5 11. Bxf6 gxf6 12. f5 Qc7 {B66: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 h6} 13. Ne2 $146 {[%cal Bc3e2,Be2f4,Bf4d5][%mdl 32]} ({Predecessor:} 13. Be2 h5 14. Bf3 Rb8 15. Ne2 e5 16. Qd3 b4 17. h4 a5 18. Ng3 a4 19. Kb1 a3 20. b3 {½-½ (58) Kovchan,A (2566)-Vorobiov,E (2558) Dresden 2018}) 13... Qc5 (13... Bb7 $11) 14. fxe6 fxe6 {White is slightly better.} 15. Qd2 O-O 16. Nf4 f5 17. exf5 $1 Rxf5 18. h4 e5 {[#]} 19. Nd5 $1 {[%cal Rd5e7]} Bf8 20. Be2 $1 Bb7 {[#]} 21. Bf3 $1 Rc8 {aiming for ...Bh6!} 22. Kb1 Kh8 23. Rhf1 Bxd5 24. Bxd5 Rxf1 25. Rxf1 Bg7 26. Qd3 a5 27. a3 b4 28. a4 Qd4 29. Qxd4 exd4 $16 {[%mdl 4096] Endgame KRB-KRB} 30. Be4 (30. Rf7 $16) 30... Rf8 $14 31. Rxf8+ Bxf8 {KB-KB} 32. Ka2 Be7 33. h5 h6 34. Kb3 Kg7 35. Kc4 Kf6 36. Kd5 Bf8 37. g4 Be7 38. Bf5 Kf7 39. b3 Kf6 40. Kxd4 Kg5 41. Kd5 Kf6 42. Bc8 Kf7 43. Bf5 Kf6 44. Be6 Bd8 45. Kxd6 Be7+ 46. Kd5 Bd8 47. Bf5 Kg5 48. Kc5 Bc7 49. Kc4 Bd8 50. c3 bxc3 51. b4 axb4 52. Kxb4 c2 $1 {[%cal Rc2c1]} 53. Bxc2 {Hoping for Bf5.} Kxg4 54. Bg6 Kg5 55. Kb5 Kf6 56. a5 Bxa5 $1 {The position is equal.} 57. Kxa5 Kg7 58. Kb5 Kh8 59. Kc6 Kg7 60. Kd7 Kh8 61. Ke8 Kg7 {Accuracy: White = 80%, Black = 69%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.16"]
[White "Srihari L R"]
[Black "Mitrabha, Guha"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2302"]
[BlackElo "2448"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,120,24,25,38,29,16,23,19,24,18,14,-37,-32,-28,20,13,13,24,0,0,0,-19,0,0,0,-66,-64,-76,-64,-75,-76,-72,-63,-73,-64,-141,-130,-133,-134,-129,-140,-154,-141,-149,-148,-268,-273,-256,-263,-262,-227,-227,-223,-353,-158,-162,-162,-161,-154,-180,-154,-161,-116,-100,-72,-272,-277,-270,-272,-643,-643,-558,-257,-257,-257,-260,-266,-304,-291,-1166,-1171,-933,-881,-5210,-3023,-29981,-29982,-29982,-29983,-29983,-29984,-29985,-29986,-29986,-29987,-29987,-29988,-29988,-29989,-29989,-29990,-29990,-29991,-29991,-29992,-29992,-29988,-29988,-29989,-29989,-29990]} 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. d3 d6 6. e4 Nbd7 7. Re1 {A05: Réti Opening: 1 Nf3 Nf6} Be7 8. Nh4 $146 ({Predecessor:} 8. b3 O-O 9. Bb2 c5 10. Nbd2 a5 11. a4 bxa4 12. Rxa4 Nb6 13. Ra1 Nfd7 14. c4 Bf6 15. Bxf6 Qxf6 {0-1 (47) Zpevak,P (2402)-Krejci,J (2454) Czechia 2011}) 8... Qc8 9. a4 {White has an edge.} a6 10. f4 c5 11. c4 (11. Nd2 $11) 11... bxc4 $15 12. dxc4 Nf8 13. Nc3 Ng6 14. Nxg6 hxg6 15. Qe2 Rb8 16. Be3 Bc6 17. Rad1 Rb4 18. f5 (18. Rb1 $11) 18... gxf5 19. exf5 Bxg2 20. Qxg2 Qb7 (20... exf5 21. Bg5 $16) 21. Qxb7 Rxb7 22. fxe6 fxe6 23. Bg5 ({White should try} 23. Bc1 $1 $15) 23... Kf7 $17 (23... Rxb2 $6 24. Rxe6 Rbxh2 25. Bh4 $11) 24. Re2 Rb4 25. Bxf6 gxf6 26. Ne4 Rd8 (26... Rxc4 27. Nxd6+ Bxd6 28. Rxd6 $16) 27. Rf1 f5 28. g4 (28. Rf4 $17 {keeps fighting.}) 28... Rg8 $19 (28... Rxa4 29. gxf5 Rg8+ 30. Kh1 $11) 29. h3 Rxc4 30. Kh1 Rd4 ({Much less strong is} 30... Rxa4 31. gxf5 e5 32. f6 $17) 31. gxf5 {[#]} e5 $1 32. Rf3 (32. a5 {was necessary.}) 32... d5 (32... Rxa4 $2 33. Rb3 $17) (32... Rd1+ $19 {has better winning chances.} 33. Kh2 d5) 33. Nf2 $17 e4 34. Rb3 Rg5 35. Ng4 Rd1+ ({Don't take} 35... Rxf5 36. Nh6+ Kg6 37. Nxf5 $17) ({Don't play} 35... Rxa4 36. Rb7 $11) 36. Kg2 c4 $36 {[%mdl 2048] Black is on the roll.} 37. Rb6 Bc5 38. Rc6 $2 (38. Rxa6 $17 {was the only defense.} Rd3 39. Rg6 {[%mdl 64] Decoy} Rxg6 40. fxg6+ Kxg6 41. Ne5+ Kf5 42. Ng4) 38... Bd4 $19 39. Rxa6 {[#]} Rh5 $1 {Hoping for ...Rg1+.} 40. Nf2 $2 (40. Nh6+ Kg7 41. Rg6+ Kf8 42. Ng4) 40... Bxf2 41. Kxf2 Rxf5+ {[%mdl 4096] Endgame KRR-KRR} (41... Rxh3 $142 {...Rh2+ is the strong threat.} 42. Rg6 Rh5) 42. Kg2 Rf6 43. Ra7+ Ke6 44. a5 Ke5 {Threatens to win with ...Kd4.} 45. h4 $2 (45. Re7+ Kd6 46. Re8) 45... Kd4 46. Kh3 Kd3 47. Rg2 Rh1+ 48. Rh2 Rxh2+ {Black mates.} 49. Kxh2 {KR-KR} e3 50. Re7 e2 51. Kg3 Kd2 52. Kg4 e1=Q 53. Rxe1 Kxe1 {KR-K3P} 54. Kg5 Rf8 55. Kg6 d4 56. Kg7 Ra8 57. h5 d3 58. h6 Rxa5 59. h7 Rh5 60. h8=Q Rxh8 {Accuracy: White = 38%, Black = 78%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.17"]
[White "Harikrishnan.A.Ra"]
[Black "Rohith Krishna S"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2444"]
[BlackElo "2289"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,108,-2,0,0,0,0,5,-8,45,52,36,33,52,0,-6,-43,-44,-34,0,0,49,51,45,55,50,25,8,14,9,31,32,0,0,0,6,-10,6,6,6,6,11,6,2,0,20,8,8,27,8,21,15,21,20,0,7,7,7,7,7,7,7,0,0,0,7,7,7,7,8,0,7,0,7,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. b3 Nf6 2. Bb2 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. d3 c5 7. c4 d5 8. e3 O-O 9. O-O Nc6 10. Nc3 Qd7 11. cxd5 {A14: English Opening: 1...e6 with b3 by White} (11. Qe2 Rad8 12. Rfd1 d4 13. exd4 Nxd4 14. Nxd4 cxd4 15. Nb5 Bxg2 16. Kxg2 Bc5 17. b4 Bxb4 18. Nxd4 Be7 {½-½ (62) Gashimov,V (2734)-Wang,Y (2752) Astrakhan 2010}) 11... exd5 12. d4 Rfd8 13. Rc1 cxd4 (13... Ne4 $11) 14. Nxd4 $14 Nxd4 $146 ({Predecessor:} 14... Rac8 15. Nce2 Ba6 16. Nxc6 Rxc6 17. Qd2 Rxc1 18. Rxc1 Ne4 {1-0 (70) Garcia,R-Venalainen,U Lugano 1968}) 15. Qxd4 Bc5 16. Qh4 ({White should play} 16. Qa4 $14) 16... d4 $11 17. Na4 Bxg2 18. Kxg2 Qd5+ 19. Kg1 Ne4 20. Nxc5 bxc5 21. f3 $1 {[%cal Rf3e4]} Nd6 22. e4 (22. Qf4 {seems wilder.} Nb5 23. e4 Qc6 24. Qg5 Qa6 25. Rf2) 22... Qe5 23. Qf4 Qxf4 24. gxf4 Rac8 25. Ba3 Nb5 26. Bb2 $1 f5 27. e5 Nc7 28. Rxc5 Ne6 29. Rxc8 Rxc8 {[%mdl 4096] Endgame KRB-KRN} 30. Rc1 Rd8 $1 31. Rc6 Nxf4 {[#] Strongly threatening ...d3.} 32. Rd6 Rxd6 33. exd6 {Threatens to win with d7. KB-KN} Kf7 {With the idea ...d3.} 34. Kf1 {The position is equal.} d3 {( -> ...d2)} 35. Ke1 g5 36. Be5 {next Bxf4 is good for White.} Ng6 37. d7 Ke7 $132 {[%mdl 2048] Black is not holding back} 38. Bf6+ Kxd7 {[#] And now ...Nh4 would win.} 39. Bxg5 Ke6 $1 40. Be3 a6 41. Kd2 Ne5 42. Bf4 {Bxe5 is the strong threat.} Nxf3+ 43. Kxd3 Kd5 44. Ke3 Nd4 45. h4 Ne6 46. h5 Kc5 47. a3 Kd5 48. Bh2 h6 49. Bf4 Ng7 50. Bxh6 Nxh5 51. Bf8 Ng3 52. Bb4 Ke5 53. Bc3+ Kd5 54. Bb4 Ke5 {Accuracy: White = 45%, Black = 65%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.18"]
[White "Priyanka, Kumari"]
[Black "Neelotpal, Das"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1874"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,94,0,8,9,7,0,8,2,8,10,45,26,25,31,54,23,24,23,47,35,45,46,50,38,33,37,43,30,48,39,49,37,66,37,25,12,40,45,21,16,9,14,62,63,82,0,0,0,0,-2,-2,-2,-2,-2,-3,-3,-3,-8,-9,-25,-12,-5981,-5972,-5987,-5972,-5972,-5197,-29974,-29975,-29976,-29977,-29978,-29979,-29979,-29978,-29978,-29979,-29979,-29980,-29979,-29981,-29979,-29980]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. Nc3 d6 8. a3 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines} O-O 9. Nd5 Na5 10. Ba2 {The position is equal.} c5 11. b4 Nc6 12. Be3 Ng4 $146 ({Predecessor:} 12... cxb4 13. axb4 Bb7 14. O-O Nxd5 15. Bxd5 Qd7 {1-0 (34) Rapport,R (2715)-Kollars,D (2534) Karlsruhe 2018}) 13. O-O Kh8 14. h3 (14. Bd2 {feels hotter.} Nf6 15. Re1 Bd7 16. Rb1 Rb8 17. c3) 14... Nxe3 15. fxe3 cxb4 16. axb4 Be6 17. Qd2 Ra7 18. Bb3 Bg5 19. Nxg5 Qxg5 20. Kh1 g6 21. c4 Rfa8 22. Ra3 Bxd5 23. exd5 Nd4 24. Rfa1 bxc4 25. dxc4 Rb8 26. Qe1 Nf5 27. Bc2 {And now Bxf5 would win.} Rc7 28. Bxf5 $1 Qxf5 29. Rc1 (29. e4 $16 Qg5 30. Rc3 (30. Rxa6 Rxc4 31. Rxd6 Qf4 $11)) 29... Qe4 $11 30. Rxa6 {Strongly threatening Qf1.} Rxc4 31. Rxc4 Qxc4 32. Rxd6 {Threatens to win with Qf2.} Qxb4 33. Qxb4 Rxb4 {[%mdl 4096] Endgame KR-KR} 34. Kg1 Rb2 35. Rf6 Kg7 36. Rf2 Rb1+ 37. Rf1 $2 {[%mdl 8192] [#]} (37. Kh2 $11) 37... Rxf1+ $1 $19 38. Kxf1 {[#] KP-KP} e4 $1 39. Kf2 Kf6 40. g4 g5 {Black mates.} (40... Ke5 41. g5 $19) 41. Ke2 Ke5 42. Kd2 Kxd5 43. Kc3 Ke5 44. Kd2 f6 45. Ke2 Kd5 46. Kd2 Kc4 47. Kc2 h6 {Accuracy: White = 53%, Black = 66%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.22"]
[Round "7.19"]
[White "Das, Sayantan"]
[Black "Jubin Jimmy"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2424"]
[BlackElo "2193"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,96,0,-1,12,-4,0,0,0,0,23,0,0,0,-14,-21,-14,-18,-12,-55,-14,-7,0,-2,-8,-7,-5,-24,-17,-37,-27,-23,-26,-48,-43,-64,-58,-83,-90,-103,-110,-112,-91,-119,-102,-126,-119,-150,-149,-203,-200,-217,-42,-31,-41,-65,-8,-198,-180,-174,-166,-356,-356,-349,-354,-404,-395,-392,-375,-578,-589,-649,-638,-900,-822,-1167,-617,-607,-602,-622,-623]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. b3 O-O 6. O-O c5 7. Bb2 Nc6 8. e3 b6 9. Nc3 Ba6 10. d3 Qd7 {A14: English Opening: 1...e6 with b3 by White} 11. Qe2 Rac8 12. Rfd1 (12. Rad1 Rfd8 13. a4 Qe8 14. e4 dxc4 15. bxc4 Nd4 16. Nxd4 cxd4 17. Nb5 Bxb5 18. axb5 {½-½ (50) Gareyev,T (2598)-Jakovenko,D (2698) Moscow 2019}) 12... Rfd8 {The position is equal.} 13. Rac1 h6 14. Qf1 $146 ({Predecessor:} 14. Ba1 d4 15. exd4 Nxd4 16. Nxd4 cxd4 17. Nb1 Re8 {0-1 (34) Amanov,Z (2411)-Friedel,J (2523) ICC INT 2011}) 14... Qe8 15. Ne2 Nh7 16. Ne5 Nxe5 17. Bxe5 Bf6 18. f4 Be7 19. Ba1 Bf6 20. Nc3 Bb7 21. Bf3 Bc6 22. e4 {[%cal Re4d5]} Bd4+ 23. Kh1 {[%cal Re4d5]} dxe4 24. dxe4 Nf6 25. Qg2 Qe7 26. Re1 Qb7 27. g4 Nh7 28. Qe2 Nf8 29. f5 Nd7 30. Bg2 Ne5 31. Rcd1 Re8 32. fxe6 fxe6 33. g5 (33. Rf1 $17) 33... hxg5 $19 34. Qh5 {[#]} g4 $2 (34... Qe7 $1 $19 {White must now prevent ...Rf8.} 35. Qh3 Rf8) 35. Nb5 $1 $15 {[%cal Rb5d4]} Bxa1 36. Rxa1 {Nd6 is the strong threat.} Nd3 (36... Bxb5 $1 $15 37. Qxe5 Bc6) 37. Re3 $2 (37. Nd6 $11 Nf2+ 38. Kg1) 37... Qd7 $36 {[%mdl 2048] Black has strong initiative.} 38. Rxd3 Qxd3 39. Qxg4 $2 (39. Nxa7 Bxe4 40. Nxc8 Bxg2+ 41. Kxg2 Qe4+ 42. Kg1 Rxc8 43. Rf1) 39... Bxb5 $19 40. cxb5 Qc3 {Played: Qd3-d4} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.1"]
[White "Yudin, Sergei"]
[Black "Ponkratov, Pavel"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2508"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,28,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. Qb3 Na5 11. Qa4+ Nc6 12. Qb3 Na5 13. Qa4+ Nc6 14. Qb3 {[#]} Na5 $146 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.2"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Goganov, Aleksey"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2606"]
[BlackElo "2583"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,63,24,24,31,31,24,28,34,32,35,31,34,25,31,23,26,24,36,12,14,12,11,12,14,14,29,26,31,35,17,0,21,0,0,0,0,0,-4,-14,-7,-12,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 O-O {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4} 8. d4 Nf5 9. Nf3 d5 {White has an edge.} 10. c3 Bd6 11. Nbd2 Re8 12. Rxe8+ Qxe8 13. Bd3 {[#]} b6 $146 ({Predecessor:} 13... Bd7 14. Nf1 b6 15. Qc2 {½-½ (27) Karjakin,S (2762)-Andreikin,D (2720) Baku 2015}) 14. Qc2 g6 15. Nf1 Bd7 16. Bg5 Qf8 17. Ne3 Nxe3 18. Bxe3 Bg4 19. Qa4 Ne7 20. Ne5 Be6 21. h3 {The position is equal.} f6 22. Nf3 Qe8 23. Bb5 c6 24. Bf1 Qd7 25. Re1 Nf5 26. Bc1 b5 27. Qc2 Ng7 28. a4 a6 29. Nd2 Bf5 30. Qd1 Re8 31. Rxe8+ Qxe8 32. Nb3 {Accuracy: White = 79%, Black = 88%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.3"]
[White "Bogdanovich, Stanislav"]
[Black "Visakh N R"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2562"]
[BlackElo "2518"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,97,0,24,18,28,14,37,12,3,3,25,18,37,39,43,37,46,50,48,45,47,26,38,29,52,42,74,53,44,35,77,72,72,85,68,35,39,10,26,8,59,71,70,75,70,45,176,176,162,166,170,159,193,192,192,168,213,213,230,205,206,191,191,191,389,387,422,414,404,393,432,388,219,16,16,0,55,47,51,0,0,0,102,0,0,0,38,0,268,54]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Bd6 (5... Be7 6. Bg2 Nbd7 7. O-O O-O 8. Qc2 c6 9. Bf4 b6 10. cxd5 cxd5 11. Rc1 Bb7 12. Bc7 Qe8 13. Qb3 Rc8 14. Na3 Ba6 15. Nb5 Bxb5 16. Qxb5 Nc5 17. Qxe8 Rfxe8 18. Bf4 Na4 19. Rxc8 Rxc8 20. Rc1 Rxc1+ 21. Bxc1 {0-1 (50) Giri,A (2776)-So,W (2760) Kolkata 2019}) 6. Bg2 {E01: Catalan: Early deviations} c6 7. Nc3 Nbd7 8. Qb3 {White is slightly better.} O-O 9. O-O h6 10. Bf4 Qe7 11. e3 $146 ({Predecessor:} 11. Rfe1 dxc4 12. Bxd6 Qxd6 13. Qxc4 e5 14. Rad1 exd4 15. Qxd4 Qxd4 16. Nxd4 {1-0 (54) Deepan Chakkravarthy,J (2464)-Eswar,R (2021) Nagpur 2008}) 11... dxc4 12. Bxd6 Qxd6 13. Qxc4 e5 14. Rfd1 exd4 15. Nxd4 Nb6 16. Qb3 Qe7 17. a4 c5 18. Nde2 Be6 19. Qc2 $1 a5 20. Nf4 Bc4 21. b3 Ba6 22. Ncd5 Nbxd5 23. Bxd5 {Threatens to win with Ng6.} Rfd8 24. Qc3 Nxd5 ({Better is} 24... Rac8 $11) 25. Nxd5 $14 Qd6 26. Rd2 b6 27. Rad1 Bb7 {[#]} (27... Re8 $14) 28. Nf6+ $1 $18 {[%mdl 512]} Qxf6 29. Qxf6 Rxd2 {[%cal Rd2d1]} 30. Qa1 Rad8 31. Rxd2 Rxd2 {[%mdl 4096] Endgame KQ-KRB} 32. f4 $1 Bd5 33. Qc3 $1 {[%cal Rc3d2]} Rd1+ 34. Kf2 f6 35. g4 Bf7 36. Qc2 Rh1 $2 (36... Rd6 {was called for.} 37. h4 Kf8) 37. Kg2 Ra1 {intending ...Ra3.} 38. h4 Ra3 39. g5 hxg5 40. fxg5 fxg5 41. h5 $2 (41. hxg5 $18 {Strongly threatening g6.} g6 42. Qd3 Rxb3 43. Qd8+ Kg7 44. Qf6+ Kg8 45. e4) 41... Rxb3 $11 42. Qd2 Rb4 (42... Bxh5 $11 43. Qd8+ Kh7) 43. Qd8+ $1 $14 {[%mdl 1088] Double Attack. White has compensation.} Kh7 44. Qe7 (44. Qxg5 $14 Bb3 45. Qg6+ Kh8 46. e4) 44... Bd5+ 45. Kf2 {h6 is the strong threat.} Rb2+ ({Don't play} 45... Rxa4 $6 46. h6 $16) (45... Ba2 $11 {remains equal.}) 46. Ke1 (46. Kg3 $16) 46... Rb1+ $1 $11 47. Kd2 {Black must now prevent h6.} Rb2+ 48. Kc3 Ra2 $2 {[%mdl 8192]} (48... Rb3+ $11 49. Kd2 Bg8) 49. Qxg5 $2 {Accuracy: White = 66%, Black = 46%.} (49. h6 $1 $18 {[%csl Gh6][%cal Re7g7]} Ra3+ {[#]} 50. Kc2 $1 {[%mdl 512]} Ra2+ 51. Kc1 $1 {[%mdl 512]} (51. Kb1 Kxh6 52. Qd6+ {[%mdl 64] Double Attack} g6 $16) 51... Ra1+ 52. Kb2 $1 {[%mdl 512]} Ra2+ 53. Kb1 $1 {[%mdl 512]} Kxh6 54. Qd6+ {[%mdl 64] Double Attack} g6 55. Qxd5 Rxa4 56. e4) 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.4"]
[White "Vishnu Prasanna. V"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2474"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,118,-31,-16,-57,-49,-45,0,0,0,-26,-15,-51,0,0,0,-5,24,-2,0,-48,-42,-45,-38,-74,-71,-100,-100,-99,-98,-132,-129,-129,-121,-127,-125,-114,-130,-132,-122,-126,-110,-110,-94,-107,0,-119,-118,-175,-175,-203,-214,-194,-203,-196,-166,-152,-130,-146,-31,-17,-24,-33,-20,-38,-42,-384,-362,-404,-417,-422,-418,-401,-395,-649,-663,-656,-638,-603,-591,-516,-330,-3516,-3899,-3516,-2232,-2503,-874,-672,0,-2270,-1568,-1958,-1808,-1631,-1599,-12839,-12835,-12834,-12832,-12844,-12844,-12845,-12846,-12846,-12847]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. g3 dxc4 6. Bg2 Nc6 7. O-O O-O 8. a3 Be7 9. e4 {E20: Nimzo-Indian: 4 g3 and 4 f3} Na5 10. Be3 c5 11. dxc5 {The position is equal.} Nd7 12. e5 $146 ({Predecessor:} 12. Qe2 Bxc5 13. Rad1 Bxe3 14. Qxe3 Qb6 15. Qe2 Nc5 16. Ne5 Qa6 {1-0 (55) Korobov,A (2670)-Vocaturo,D (2570) Moscow 2011}) 12... Nxc5 13. Bxc5 Bxc5 (13... Qxd1 $1 $15 14. Raxd1 Bxc5) 14. Qc2 $1 $11 Be7 15. Rad1 Qc7 16. Nb5 Qb6 17. a4 h6 18. Rd4 Rd8 {aiming for ...Rxd4.} 19. Nd6 Bxd6 20. Rxd6 Rxd6 21. exd6 Bd7 $1 ({But not} 21... Qxd6 $6 22. Rd1 $11) 22. Qc3 Bc6 ({Stronger than} 22... Bxa4 23. Ra1 $16) 23. Rd1 Qb3 $1 {[%cal Rb3d1]} ({Not} 23... Bxa4 24. Ra1 $16) 24. Qxb3 cxb3 25. Ne5 Bxg2 26. Kxg2 $17 {[%mdl 4096] Endgame KRN-KRN} Rd8 27. d7 f6 28. Ng6 Kf7 29. Nh8+ Kg8 30. Ng6 Nc6 31. Nf4 {[#]} (31. h4 $17) 31... Kf7 $1 $19 32. Rd6 Ne5 33. Nxe6 Rxd7 34. Rxd7+ Nxd7 {KN-KN} 35. Nd8+ {[#]} Ke7 $1 {[%cal Re7d8]} 36. Nxb7 Nb6 (36... Ke6 $17 37. Kf3 Kd5) 37. a5 $1 $15 {[%cal Ra5b6]} Na4 38. a6 Kd7 39. Kf3 Kc7 {...Kb6 is the strong threat.} 40. Ke4 $2 {[%mdl 8192]} ({White must play} 40. Na5 $15) 40... Kb6 $19 41. Kd5 Nxb2 {Threatens to win with ...Nd1.} 42. Nc5 Nd1 43. Nxb3 Nxf2 44. Nc5 $2 (44. Nd4 Kxa6 45. Kc4) 44... Ng4 45. Ne6 g5 46. h4 Kxa6 47. Ke4 Nf2+ 48. Kf5 $2 (48. Kf3 Nd3 49. Nc7+ Kb6 50. Nd5+ Kc5 51. Nxf6) 48... Kb5 49. Nd4+ Kc5 50. Nb3+ Kb4 (50... Kc4 $142 51. Na5+ Kb5) 51. Nd4 Kc5 (51... a6 $142 52. Kxf6 Kc4) 52. Nb3+ $1 Kc4 {Black is clearly winning.} 53. Na5+ Kb5 54. Nb3 Nh1 55. Kxf6 g4 56. Kg6 Nxg3 57. Kxh6 Ne2 58. Kg5 g3 59. Nd2 Nd4 {Accuracy: White = 52%, Black = 70%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.5"]
[White "Mchedlishvili, Mikheil"]
[Black "Mitrabha, Guha"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2578"]
[BlackElo "2448"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,120,0,2,7,10,9,-18,-12,-6,-8,-15,0,0,0,-8,0,0,0,-3,1,0,0,0,0,0,11,0,0,0,0,0,20,0,0,-8,0,0,0,-22,0,0,0,0,11,11,13,14,10,16,52,54,67,52,51,15,52,0,131,131,145,154,170,180,154,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Be6 7. a3 g6 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} ({Weaker is} 7... dxc4 8. Bxf6 gxf6 9. d5 $18) (7... Qd7 8. Nge2 dxc4 9. Bxf6 exf6 10. d5 O-O-O 11. dxc6 Qxc6 12. Qa4 Qb6 13. Qb5 Qc7 14. Ng3 a6 15. Qa4 Qf4 {1-0 (39) Inarkiev,E (2693)-Dreev,A (2670) Moscow 2018}) 8. Bxf6 exf6 9. g3 Qe7 10. Nge2 dxc4 11. Bg2 {[#] Black must now prevent d5.} Bg4 $146 ({Predecessor:} 11... Rd8 12. Qa4 Bd7 13. Qxc4 Bg7 14. O-O O-O 15. d5 {1-0 (37) Gaujens,A (2226)-Cottarelli,F (1921) ICCF email 2009}) 12. Qa4 Qd7 13. Qxc4 {And now f3 would win.} Bg7 14. h3 Bxe2 15. Qxe2+ Qe7 16. Bxc6+ bxc6 17. d5 Qxe2+ (17... Rc8 {is interesting.} 18. Rc1 cxd5 19. Qxe7+ Kxe7 20. Nxd5+ Ke6) 18. Kxe2 f5 19. dxc6 Bxc3 20. bxc3 $11 {[%mdl 4096] Endgame White wants to play Rhd1. KRR-KRR} Rc8 21. Rhb1 O-O 22. Rb4 Rxc6 23. Kd3 Rfc8 24. Rc1 Kg7 25. Rd4 Kf6 26. c4 Rb8 27. c5 h5 28. Rc3 Rb5 $1 29. Rd5 Rb2 30. f4 Ke7 31. h4 a6 32. Kc4 Re6 33. Rd4 Rb7 34. Rcd3 (34. a4 $14) 34... Re1 (34... Re4 $11) 35. Rd6 $16 Rc7 36. Rc3 ({Don't play} 36. Rxa6 $6 Rc1+ 37. Kb4 R7xc5 $11) 36... Re4+ 37. Kd5 a5 38. c6 $2 (38. Ra6 $16) 38... Rd4+ $1 $11 {The position is equal.} 39. Kxd4 Kxd6 {KR-KR} 40. Rc5 Rxc6 41. Rxa5 Rc1 42. Re5 Rd1+ 43. Kc3 Rg1 44. Re3 Kc5 45. a4 Rc1+ 46. Kb2 Rg1 47. Rb3 Rg2+ 48. Ka3 Rg1 49. Rc3+ Kb6 $1 50. Kb4 Rb1+ 51. Rb3 Rc1 52. Re3 Rb1+ 53. Kc4 {[#] Strongly threatening Rb3+.} Ra1 54. Kb4 Rb1+ 55. Rb3 Rc1 56. Ra3 Rb1+ 57. Kc4 {Threatens to win with Rb3+.} Ka5 58. Kd4 Re1 59. Re3 Rd1+ 60. Ke5 Kxa4 {Accuracy: White = 76%, Black = 61%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.6"]
[White "Neelotpal, Das"]
[Black "Rozum, Ivan"]
[Result "0-1"]
[ECO "E52"]
[WhiteElo "2436"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,143,0,13,20,23,19,35,0,-5,-27,-37,-34,-27,-26,-31,-21,-27,-65,-32,-42,-41,-46,-38,-38,-33,-40,-8,-36,-30,-50,-39,-48,-47,-49,-11,-34,-8,-12,-28,-23,0,-27,-19,-22,-25,-25,-27,-27,-26,-17,-25,-43,0,-25,-24,-38,-38,-40,-38,-41,-41,-41,-37,-45,-22,-22,-22,-22,-22,-22,-23,-27,-16,-13,-9,-12,-14,-16,-8,-8,-8,-15,-18,-17,-8,-10,-8,-83,-83,-108,-113,-117,-117,-180,-170,-133,-35,-33,-37,-30,-30,-30,-30,-30,-8,-8,0,-8,0,-1551,-1179,-4627,-4622,-29974,-29977,-29977,-29978,-29978,-29979,-29979,-29980,-29980,-29980,-29975,-29975,-29956]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. Rc1 Bb7 8. cxd5 exd5 9. Bd3 a6 {9...Be7 is the hot move.} 10. O-O Bd6 11. Ne5 {E52: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5 6 Bd3 b6.} c5 12. f4 Nc6 13. Ne2 {[%cal Bc3e2,Be2g3,Bg3f5][%mdl 32] White is slightly better.} Rc8 {[#]} 14. Ng3 $146 (14. a3 {feels hotter.} Re8 15. Be1 cxd4 16. exd4 Ne4 17. Bc2) ({Predecessor:} 14. Bc3 Ne7 15. dxc5 bxc5 16. Ng3 d4 17. exd4 cxd4 18. Bd2 Rxc1 19. Bxc1 Bc5 20. Qc2 {0-1 (44) Brazdzionis,A (2355)-Barp,A (2382) Budva 2019}) 14... cxd4 15. Nxc6 Rxc6 16. Rxc6 Bxc6 17. exd4 Re8 18. Qb3 Bb7 19. Nf5 Bc7 20. Qc2 Qd7 21. Rc1 Bb8 22. Qd1 Bc8 23. Nh4 Ne4 24. Nf3 f6 25. Be3 Bb7 26. Qb3 Qe6 27. f5 Qd6 (27... Qe7 $5 {[%cal Re4c5]} 28. Bxe4 Qxe4 $15 {[%mdl 64] Double Attack}) 28. Bxe4 Rxe4 29. Bf2 Qf4 30. Rf1 Qxf5 31. Qxb6 Qd7 32. Bg3 Re6 33. Qc5 Rc6 34. Qb4 Rc4 35. Qb6 Rc6 36. Qb4 Ba7 37. Ne5 a5 $1 {[%cal Ra5b4]} 38. Nxd7 {[%csl Gd7][%cal Rb4f8]} axb4 39. Nc5 Bxc5 40. dxc5 Rxc5 $15 {[%mdl 4096] Endgame KRB-KRB} 41. Bd6 Rc2 {Strongly threatening ...Ba6.} 42. Rf2 {[#]} b3 $1 {[%mdl 512]} 43. axb3 Rc1+ 44. Rf1 Rc6 45. Bb4 Rb6 46. Rf4 Kf7 47. Rd4 Ke6 48. Kf2 Ba6 49. g3 g5 50. h4 {[#]} Bd3 $1 {[%mdl 512]} 51. Bc3 (51. Rxd3 Rxb4) 51... Be4 52. Ke3 Kf5 53. Rd1 (53. b4 $11) 53... Kg4 $1 $17 54. hxg5 fxg5 55. b4 Kxg3 56. Kd4 (56. Rg1+ $17 {keeps fighting.} Kh4 57. Kd4) 56... h5 $19 57. Kc5 {[#]} Re6 (57... Rb7 $1 $17 58. Bd4 Kf3) 58. Bd4 $15 h4 59. b5 h3 {Hoping for ...Re7.} 60. b6 $1 {[%cal Rb6b7] b7 is the strong threat.} Re7 {White must now prevent ...g4.} 61. Kc6 h2 62. b7 Re8 63. Kd7 Rg8 64. Kc7 $2 {[%mdl 8192]} (64. Be5+ $11 Kh3 65. b8=R Rxb8 66. Bxb8) 64... h1=Q $19 65. Rxh1 Bxh1 66. b8=Q Rxb8 {Black mates.} 67. Kxb8 {KB-KB} Kf4 68. b4 {[#]} Ke4 $1 69. Bf6 g4 70. b5 d4 71. Kc7 d3 72. b6 {Accuracy: White = 83%, Black = 91%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.7"]
[White "Girinath, P.D.S."]
[Black "Stupak, Kirill"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2340"]
[BlackElo "2506"]
[Annotator "ChessBase"]
[PlyCount "107"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:03:52]} d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:34]} Nc6 {[%emt 0:00:22]} 4. Nf3 {[%emt 0:01:38]} Nf6 {[%emt 0:00:01]} 5. e5 {[%emt 0:18:01]} Ne4 {[%emt 0:00:06]} 6. Bd3 {[%emt 0:04:23]} Bb4 {[%emt 0:00:19]} 7. O-O {[%emt 0:02:24]} Nxc3 {[%emt 0:00:03]} 8. bxc3 {[%emt 0:00:08]} Bxc3 {[%emt 0:00:03]} 9. Rb1 {[%emt 0:00:26]} h6 {[%emt 0:10:26]} 10. Rb3 {[%emt 0:21:18]} Bxd4 {[%emt 0:10:12]} 11. Nxd4 {[%emt 0:02:14]} Nxd4 {[%emt 0:00:01]} 12. Rb2 {[%emt 0:10:58]} Nf5 {[%emt 0:08:24]} 13. Bxf5 {[%emt 0:03:26]} exf5 {[%emt 0:00:04]} 14. c4 {[%emt 0:00:39]} d4 {[%emt 0:12:13]} 15. c5 {[%emt 0:00:59]} Qd5 {[%emt 0:08:54]} 16. Be3 {[%emt 0:13:47]} Be6 {[%emt 0:03:03]} 17. Qa4+ {[%emt 0:01:50]} Bd7 {[%emt 0:04:28]} 18. Qxd4 {[%emt 0:00:11]} Qxd4 {[%emt 0:00:10]} 19. Bxd4 {[%emt 0:00:07]} Bc6 {[%emt 0:00:01]} 20. f4 {[%emt 0:13:05]} O-O-O {[%emt 0:02:03]} 21. Rd1 {[%emt 0:00:00]} Rd7 {[%emt 0:02:18]} 22. Kf2 {[%emt 0:00:00]} Rhd8 {[%emt 0:02:35]} 23. Ke3 {[%emt 0:00:00]} b6 {[%emt 0:00:54]} 24. Rbd2 {[%emt 0:00:00]} Ba4 {[%emt 0:01:37]} 25. Rc1 {[%emt 0:00:00]} Kb7 {[%emt 0:00:05]} 26. Bc3 {[%emt 0:01:30]} Rxd2 {[%emt 0:01:38]} 27. Bxd2 {[%emt 0:00:01]} Bb5 {[%emt 0:00:00]} 28. Rc3 {[%emt 0:00:14]} bxc5 {[%emt 0:01:11]} 29. Bc1 {[%emt 0:00:58]} Rd1 {[%emt 0:02:38]} 30. Rxc5 {[%emt 0:00:44]} Bc6 {[%emt 0:00:01]} 31. g4 {[%emt 0:00:52]} fxg4 {[%emt 0:00:34]} 32. f5 {[%emt 0:00:24]} Rf1 {[%emt 0:02:09]} 33. e6 {[%emt 0:00:16]} fxe6 {[%emt 0:00:30]} 34. fxe6 {[%emt 0:00:04]} Re1+ {[%emt 0:00:00]} 35. Kf4 {[%emt 0:00:09]} Rxe6 {[%emt 0:00:00]} 36. Kxg4 {[%emt 0:00:56]} Re2 {[%emt 0:00:00]} 37. Bf4 {[%emt 0:00:18]} Rxa2 {[%emt 0:00:27]} 38. Re5 {[%emt 0:00:14]} Ra4 {[%emt 0:03:58]} 39. h4 {[%emt 0:00:43]} Bd7+ {[%emt 0:00:07]} 40. Kf3 {[%emt 0:00:20]} Ra1 {[%emt 0:07:40]} 41. Re7 {[%emt 0:01:07]} Rf1+ {[%emt 0:00:11]} 42. Kg3 {[%emt 0:00:12]} Kc8 {[%emt 0:00:17]} 43. Be3 {[%emt 0:00:35]} a5 {[%emt 0:03:20]} 44. Rxg7 {[%emt 0:01:10]} a4 {[%emt 0:00:01]} 45. Kg2 {[%emt 0:00:36]} Rd1 {[%emt 0:01:55]} 46. Rg8+ {[%emt 0:00:50]} Kb7 {[%emt 0:00:01]} 47. Bxh6 {[%emt 0:00:09]} a3 {[%emt 0:00:36]} 48. Bg7 {[%emt 0:00:37]} a2 {[%emt 0:00:23]} 49. h5 {[%emt 0:00:24]} Bc6+ {[%emt 0:00:40]} 50. Kf2 {[%emt 0:00:25]} Rd2+ {[%emt 0:03:47]} 51. Ke3 {[%emt 0:00:13]} Rg2 {[%emt 0:00:08]} 52. h6 {[%emt 0:00:13]} Rxg7 {[%emt 0:00:04]} 53. hxg7 {[%emt 0:00:36]} Bd5 {[%emt 0:00:01]} 54. Kd4 {[%emt 0:02:10]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.8"]
[White "Venkatesh, M.R."]
[Black "Eraschenkov, Denis"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2501"]
[BlackElo "2370"]
[Annotator "ChessBase"]
[PlyCount "79"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:01:32]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:11]} d5 {[%emt 0:00:04]} 3. Nd2 {[%emt 0:00:06]} a6 {[%emt 0:00:20]} 4. Ngf3 {[%emt 0:05:52]} c5 {[%emt 0:00:33]} 5. dxc5 {[%emt 0:01:23]} Bxc5 {[%emt 0:00:22]} 6. Bd3 {[%emt 0:00:10]} Nf6 {[%emt 0:01:54]} 7. e5 {[%emt 0:02:37]} Nfd7 {[%emt 0:00:57]} 8. Nb3 {[%emt 0:00:46]} Ba7 {[%emt 0:07:40]} 9. Bf4 {[%emt 0:25:45]} Nc6 {[%emt 0:02:32]} 10. O-O {[%emt 0:00:30]} f6 {[%emt 0:16:45]} 11. exf6 {[%emt 0:08:58]} Qxf6 {[%emt 0:02:08]} 12. Bg5 {[%emt 0:01:21]} Qf7 {[%emt 0:11:09]} 13. Be3 {[%emt 0:04:24]} h6 {[%emt 0:13:02]} 14. Bxa7 {[%emt 0:05:54]} Rxa7 {[%emt 0:00:49]} 15. Nh4 {[%emt 0:00:07]} Nde5 {[%emt 0:06:55]} 16. f4 {[%emt 0:00:47]} Nxd3 {[%emt 0:00:34]} 17. Qxd3 {[%emt 0:00:48]} O-O {[%emt 0:02:47]} 18. Ng6 {[%emt 0:13:54]} Re8 {[%emt 0:06:56]} 19. Rae1 {[%emt 0:02:49]} b6 {[%emt 0:02:49]} 20. Ne5 {[%emt 0:02:33]} Nxe5 {[%emt 0:01:12]} 21. Rxe5 {[%emt 0:00:07]} a5 {[%emt 0:13:22]} 22. Qe3 {[%emt 0:00:22]} Rc7 {[%emt 0:02:10]} 23. Nd4 {[%emt 0:00:25]} Rf8 {[%emt 0:00:46]} 24. c3 {[%emt 0:02:24]} Rc4 {[%emt 0:01:07]} 25. g3 {[%emt 0:02:32]} Rc5 {[%emt 0:03:31]} 26. Re1 {[%emt 0:01:06]} Rd8 {[%emt 0:01:10]} 27. Nxe6 {[%emt 0:11:12]} Bxe6 {[%emt 0:00:10]} 28. Rxe6 {[%emt 0:00:02]} d4 {[%emt 0:00:33]} 29. cxd4 {[%emt 0:00:13]} Rc4 {[%emt 0:01:01]} 30. Rxb6 {[%emt 0:04:54]} Rc2 {[%emt 0:01:00]} 31. a3 {[%emt 0:01:08]} Kh8 {[%emt 0:00:32]} 32. Re6 {[%emt 0:00:32]} Rcc8 {[%emt 0:00:34]} 33. Qe5 {[%emt 0:00:25]} Kh7 {[%emt 0:00:27]} 34. Re7 {[%emt 0:00:08]} Qf8 {[%emt 0:00:28]} 35. f5 {[%emt 0:00:31]} Rc6 {[%emt 0:00:05]} 36. Re6 {[%emt 0:00:40]} Rc4 {[%emt 0:00:57]} 37. f6 {[%emt 0:00:29]} Rcxd4 {[%emt 0:00:18]} 38. fxg7 {[%emt 0:00:40]} Qf7 {[%emt 0:00:02]} 39. g8=Q+ {[%emt 0:00:36]} Qxg8 {[%emt 0:00:29]} 40. Qf5+ {[%emt 0:00:23]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.9"]
[White "Vasquez Schroeder, Rodrigo"]
[Black "Jubin Jimmy"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2487"]
[BlackElo "2193"]
[Annotator "ChessBase"]
[PlyCount "148"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:01:38]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:05]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:07]} Bb4+ {[%emt 0:00:00]} 4. Nbd2 {[%emt 0:00:10]} O-O {[%emt 0:00:00]} 5. a3 {[%emt 0:00:09]} Be7 {[%emt 0:00:02]} 6. e4 {[%emt 0:00:07]} d6 {[%emt 0:00:07]} 7. Be2 {[%emt 0:00:37]} Nbd7 {[%emt 0:00:23]} 8. Qc2 {[%emt 0:00:39]} e5 {[%emt 0:00:30]} 9. O-O {[%emt 0:03:11]} a5 {[%emt 0:01:04]} 10. b3 {[%emt 0:00:12]} c6 {[%emt 0:03:21]} 11. Bb2 {[%emt 0:00:22]} Qc7 {[%emt 0:01:10]} 12. Rfe1 {[%emt 0:00:54]} Re8 {[%emt 0:02:22]} 13. Bf1 {[%emt 0:00:07]} Bf8 {[%emt 0:01:48]} 14. h3 {[%emt 0:02:33]} h6 {[%emt 0:07:34]} 15. Rad1 {[%emt 0:01:13]} Nh7 {[%emt 0:10:43]} 16. b4 {[%emt 0:04:06]} axb4 {[%emt 0:01:22]} 17. axb4 {[%emt 0:00:06]} b6 {[%emt 0:10:23]} 18. Qb3 {[%emt 0:01:56]} c5 {[%emt 0:15:22]} 19. dxc5 {[%emt 0:10:06]} dxc5 {[%emt 0:01:34]} 20. b5 {[%emt 0:00:06]} Be7 {[%emt 0:00:49]} 21. Nb1 {[%emt 0:01:28]} Nhf8 {[%emt 0:00:28]} 22. Nc3 {[%emt 0:00:07]} Ne6 {[%emt 0:01:07]} 23. Nd5 {[%emt 0:00:19]} Qb8 {[%emt 0:00:31]} 24. Ra1 {[%emt 0:05:12]} Rxa1 {[%emt 0:01:01]} 25. Rxa1 {[%emt 0:00:07]} Bd6 {[%emt 0:02:53]} 26. Nh4 {[%emt 0:02:02]} Nd4 {[%emt 0:03:32]} 27. Qg3 {[%emt 0:01:52]} Bb7 {[%emt 0:00:53]} 28. Bc1 {[%emt 0:09:36]} Kh8 {[%emt 0:06:32]} 29. Nf3 {[%emt 0:07:24]} Bxd5 {[%emt 0:03:39]} 30. cxd5 {[%emt 0:00:07]} Nf6 {[%emt 0:00:19]} 31. Nd2 {[%emt 0:00:12]} Qb7 {[%emt 0:03:31]} 32. Ra6 {[%emt 0:00:21]} Rb8 {[%emt 0:01:15]} 33. Qa3 {[%emt 0:02:19]} Qc7 {[%emt 0:03:10]} 34. Ra7 {[%emt 0:03:06]} Rb7 {[%emt 0:03:31]} 35. Rxb7 {[%emt 0:01:08]} Qxb7 {[%emt 0:00:01]} 36. Qa6 {[%emt 0:00:22]} Qc7 {[%emt 0:00:21]} 37. Bd3 {[%emt 0:01:17]} Nd7 {[%emt 0:02:40]} 38. Nc4 {[%emt 0:00:26]} Kh7 {[%emt 0:00:24]} 39. Be3 {[%emt 0:01:18]} Qb8 {[%emt 0:02:17]} 40. Kf1 {[%emt 0:01:53]} g6 {[%emt 0:00:55]} 41. g3 {[%emt 0:00:16]} Kg7 {[%emt 0:00:10]} 42. Kg2 {[%emt 0:00:27]} Kh7 {[%emt 0:00:43]} 43. Qa3 {[%emt 0:05:46]} Bf8 {[%emt 0:02:51]} 44. Qa4 {[%emt 0:01:44]} Bd6 {[%emt 0:00:42]} 45. f3 {[%emt 0:01:07]} Kg7 {[%emt 0:01:43]} 46. h4 {[%emt 0:00:24]} Kh7 {[%emt 0:00:49]} 47. Kf2 {[%emt 0:02:18]} Kg7 {[%emt 0:00:08]} 48. Kg2 {[%emt 0:02:57]} Kh7 {[%emt 0:00:52]} 49. Qa3 {[%emt 0:01:06]} Bf8 {[%emt 0:00:31]} 50. Qa2 {[%emt 0:01:39]} Bd6 {[%emt 0:00:12]} 51. Kf2 {[%emt 0:00:35]} Kg7 {[%emt 0:01:10]} 52. Bf1 {[%emt 0:00:45]} Bc7 {[%emt 0:01:00]} 53. Bh3 {[%emt 0:00:23]} Nf6 {[%emt 0:00:07]} 54. Qd2 {[%emt 0:03:40]} Ng8 {[%emt 0:00:57]} 55. Bd7 {[%emt 0:01:27]} Kh7 {[%emt 0:01:27]} 56. Kg2 {[%emt 0:01:15]} Qd8 {[%emt 0:01:09]} 57. Bc6 {[%emt 0:00:12]} Kg7 {[%emt 0:00:34]} 58. Bxd4 {[%emt 0:00:57]} cxd4 {[%emt 0:00:20]} 59. Qb4 {[%emt 0:00:36]} Nf6 {[%emt 0:00:16]} 60. d6 {[%emt 0:00:33]} Bb8 {[%emt 0:00:11]} 61. g4 {[%emt 0:01:50]} Nh7 {[%emt 0:01:09]} 62. Kg3 {[%emt 0:01:01]} Nf8 {[%emt 0:00:11]} 63. Qa3 {[%emt 0:01:16]} Ne6 {[%emt 0:01:00]} 64. Bd5 {[%emt 0:00:55]} Nf4 {[%emt 0:01:17]} 65. Qa8 {[%emt 0:03:26]} Ne2+ {[%emt 0:01:44]} 66. Kf2 {[%emt 0:00:10]} Nc3 {[%emt 0:00:19]} 67. g5 {[%emt 0:00:31]} hxg5 {[%emt 0:00:03]} 68. Qb7 {[%emt 0:00:04]} Qf6 {[%emt 0:01:48]} 69. Bxf7 {[%emt 0:07:23]} Qxf7 {[%emt 0:02:15]} 70. Qxb8 {[%emt 0:00:13]} g4 {[%emt 0:00:48]} 71. Nxe5 {[%emt 0:00:39]} Qa2+ {[%emt 0:00:32]} 72. Kg3 {[%emt 0:00:12]} Ne2+ {[%emt 0:00:01]} 73. Kf2 {[%emt 0:01:18]} Nf4+ {[%emt 0:00:13]} 74. Kg3 {[%emt 0:00:05]} Nh5+ {[%emt 0:02:14] Kf2} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.10"]
[White "Taher, Yoseph Theolifus"]
[Black "Harshavardhan G B"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "2462"]
[BlackElo "2343"]
[Annotator "ChessBase"]
[PlyCount "100"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:00]} Bc5 {[%emt 0:01:01]} 4. Bg2 {[%emt 0:00:08]} Nc6 {[%emt 0:00:16]} 5. Nge2 {[%emt 0:00:13]} d6 {[%emt 0:00:41]} 6. d3 {[%emt 0:02:43]} a6 {[%emt 0:00:22]} 7. O-O {[%emt 0:00:23]} Be6 {[%emt 0:00:22]} 8. Nd5 {[%emt 0:00:19]} Qd7 {[%emt 0:01:37]} 9. c3 {[%emt 0:02:25]} Ba7 {[%emt 0:02:36]} 10. d4 {[%emt 0:02:24]} exd4 {[%emt 0:02:56]} 11. Nxf6+ {[%emt 0:00:19]} gxf6 {[%emt 0:00:05]} 12. cxd4 {[%emt 0:00:06]} Bg4 {[%emt 0:02:08]} 13. f3 {[%emt 0:00:19]} Bh3 {[%emt 0:00:23]} 14. Bxh3 {[%emt 0:00:29]} Qxh3 {[%emt 0:00:07]} 15. Be3 {[%emt 0:00:08]} Qd7 {[%emt 0:02:41]} 16. Qd2 {[%emt 0:00:25]} O-O-O {[%emt 0:05:03]} 17. d5 {[%emt 0:00:08]} Bxe3+ {[%emt 0:00:10]} 18. Qxe3 {[%emt 0:00:02]} Ne7 {[%emt 0:01:39]} 19. a4 {[%emt 0:00:58]} Kb8 {[%emt 0:00:43]} 20. b4 {[%emt 0:00:07]} Rhe8 {[%emt 0:03:12]} 21. b5 {[%emt 1:28:54]} a5 {[%emt 0:00:54]} 22. Qd2 {[%emt 0:00:00]} f5 {[%emt 0:00:36]} 23. Nd4 {[%emt 0:00:00]} b6 {[%emt 0:05:11]} 24. exf5 {[%emt 0:00:00]} Ka8 {[%emt 0:02:32]} 25. g4 {[%emt 0:00:00]} Rc8 {[%emt 0:02:49]} 26. Ne2 {[%emt 0:00:00]} Ng8 {[%emt 0:02:04]} 27. Ng3 {[%emt 0:00:00]} Qd8 {[%emt 0:01:44]} 28. Rae1 {[%emt 0:00:00]} Nf6 {[%emt 0:03:19]} 29. Rxe8 {[%emt 0:00:00]} Qxe8 {[%emt 0:00:05]} 30. Re1 {[%emt 0:00:00]} Qd8 {[%emt 0:01:15]} 31. h4 {[%emt 0:00:00]} Nd7 {[%emt 0:01:41]} 32. Qg5 {[%emt 0:00:00]} Qh8 {[%emt 0:02:18]} 33. f6 {[%emt 0:00:00]} Nxf6 {[%emt 0:03:22]} 34. Qf5 {[%emt 0:00:00]} Kb8 {[%emt 0:01:41]} 35. Kg2 {[%emt 0:00:00]} Qg7 {[%emt 0:05:01]} 36. g5 {[%emt 0:00:00]} Ng8 {[%emt 0:01:06]} 37. Nh5 {[%emt 0:00:00]} Qb2+ {[%emt 0:03:12]} 38. Kh3 {[%emt 0:00:00]} Qd2 {[%emt 0:01:46]} 39. Re4 {[%emt 0:00:00]} h6 {[%emt 0:02:48]} 40. Ng3 {[%emt 0:00:00]} hxg5 {[%emt 0:00:58]} 41. Qxg5 {[%emt 0:00:00]} Qc3 {[%emt 0:01:00]} 42. Rf4 {[%emt 0:00:00]} f6 {[%emt 0:00:55]} 43. Qg7 {[%emt 0:00:00]} Qe3 {[%emt 0:00:57]} 44. Rf5 {[%emt 0:00:00]} Ne7 {[%emt 0:01:24]} 45. Rxf6 {[%emt 0:00:00]} Nxd5 {[%emt 0:00:07]} 46. Rf8 {[%emt 0:00:00]} Qe6+ {[%emt 0:02:13]} 47. Kh2 {[%emt 0:00:00]} Ne3 {[%emt 0:00:34]} 48. Rxc8+ {[%emt 0:00:00]} Kxc8 {[%emt 0:00:12]} 49. Kg1 {[%emt 0:00:00]} Qa2 {[%emt 0:00:45]} 50. Ne4 {[%emt 0:00:00]} Qe2 {[%emt 0:02:51]} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.11"]
[White "Ravichandran, Siddharth"]
[Black "Pantsulaia, Levan"]
[Result "1/2-1/2"]
[ECO "B28"]
[WhiteElo "2358"]
[BlackElo "2598"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,54,69,48,58,64,64,32,83,75,110,90,103,50,96,68,88,65,88,90,138,137,132,126,127,110,146,115,241,208,201,44,670,468,454,355,447,0,53,0,392,0,42,0,273,0,8,0,276]} 1. e4 c5 2. Nf3 a6 3. c3 d6 4. d4 Qc7 5. h3 g6 6. Bd3 {B28: Sicilian: 2 Nf3 a6 (O'Kelly Variation)} Bg7 7. O-O Nf6 (7... Nd7 8. Re1 e5 9. Be3 Ngf6 10. dxe5 dxe5 11. c4 O-O 12. Nc3 b6 {1-0 (69) Lupulescu,C (2558)-Mamedov,R (2617) Plovdiv 2008}) 8. e5 {White is slightly better.} dxe5 (8... Nfd7 $14) 9. dxe5 $16 Nfd7 $146 ({Predecessor:} 9... Nd5 10. Re1 e6 11. Be4 O-O 12. Bxd5 exd5 13. Qxd5 {½-½ (48) Streiter,G (2005)-Gutmann,A (2100) St Johann im Pongau 2016}) 10. e6 $1 {[%cal Re6d7]} fxe6 11. Qe2 ({Better is} 11. Bc2 $16) 11... Nc6 12. Nbd2 {[%mdl 1024] White has strong compensation.} Nde5 13. Bc2 O-O 14. Ng5 Nd8 15. f4 $36 {[%mdl 2048] White is in control.} Nd7 16. Ndf3 Nf6 17. Ne5 b5 18. h4 Nb7 (18... c4 $16 {is a better defense.}) 19. h5 $1 $18 gxh5 20. Qxh5 {[%cal Rc2h7]} h6 $2 {[%mdl 8192]} (20... Nxh5 21. Bxh7+ Kh8 22. Ng6#) (20... Qxe5 $14 21. Qxh7+ (21. Bxh7+ Kh8 $11) 21... Nxh7 22. Bxh7+ (22. fxe5 $2 {is the wrong capture.} Rxf1+ 23. Kxf1 Nxg5 $19) 22... Kh8 23. fxe5 Rxf1+ 24. Kxf1 Bxe5) 21. Nef7 ({Weaker is} 21. Qh2 c4 $16) 21... hxg5 22. Nh6+ Kh8 23. Nf7+ $2 (23. Qh1 $18) 23... Kg8 $14 {[#]} 24. Nh6+ $2 {[%mdl 8192]} (24. Bh7+ $1 $14 {[%mdl 512]} Nxh7 25. fxg5) 24... Kh8 $18 25. Nf7+ $2 (25. Qh1 $18 g4 26. Re1 (26. Nxg4+ $2 Kg8 $17)) 25... Kg8 $14 {[#]} 26. Nh6+ $2 (26. Bh7+ $1 $14 {[%mdl 512]} Nxh7 27. fxg5) 26... Kh8 $18 {[#]} 27. Nf7+ $2 (27. Qg6 $1 $18 Qd7 28. fxg5) 27... Kg8 $11 {[#]} 28. Nh6+ $2 {[%mdl 8192]} (28. Bh7+ $1 $11 {[%mdl 512]} Nxh7 29. fxg5) 28... Kh8 {[%mdl 32768] Accuracy: White = 73%, Black = 33%. . An unexpected result.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.12"]
[White "Fedorov, Alexei"]
[Black "Pranesh M"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2562"]
[BlackElo "2317"]
[Annotator "TA RC"]
[PlyCount "53"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,59,21,21,21,14,39,12,26,31,27,34,99,82,93,98,100,93,83,86,89,101,90,92,128,34,177,125,255,275,281,270,420,400,730,734,823,821,804,766,737,723,685,661,619,601,597,567,672,659,701,640]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Bg5 d6 6. c3 Bb6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (6... h6 7. Bh4 a6 8. a4 Ba7 9. Nbd2 Qe7 10. O-O g5 11. Bg3 Nd7 12. b4 Nf8 13. b5 Nd8 14. d4 Ng6 15. h3 h5 {1-0 (41) Dominguez Perez,L (2763)-Grischuk,A (2759) Khanty-Mansiysk 2019}) 7. a4 a6 8. Nbd2 h6 {The position is equal.} 9. Bh4 g5 $146 ({Predecessor:} 9... Be6 10. b4 Ne7 11. Qb3 Qd7 12. d4 exd4 13. Bxf6 gxf6 14. Nxd4 Bxd4 15. cxd4 {1-0 (45) Muzychuk,A (2555)-Zhao,X (2504) Batumi 2016}) 10. Bg3 Nh5 {[#]} (10... Ba7 $14) 11. Nxe5 $1 $16 Nxg3 12. Bxf7+ Kf8 13. Ng6+ {[%mdl 64] Double Attack} Kxf7 14. Nxh8+ Qxh8 15. hxg3 Bd7 16. Nc4 {[%cal Bd2c4,Bc4e3,Be3f5][%mdl 32]} Ba7 17. Qb3 (17. Qh5+ $16 Kg7 18. f4) 17... Ke7 ({Black should try} 17... Kg7 $14) 18. d4 (18. Qxb7 $18 Ne5 19. Nxe5 (19. Qxc7 Nxc4 20. Qxc4 Qb8 $18) 19... dxe5 20. Qxc7) 18... b5 (18... Qg8 $16) 19. axb5 $18 axb5 20. Ne3 Be6 (20... Re8 $142 21. Qxb5 Bb6 22. Nf5+ Bxf5) 21. Nf5+ {[%mdl 64] Double Attack} Kd7 (21... Bxf5 $142 22. exf5 Kf8) 22. d5 {[%mdl 64] Double Attack. White is clearly winning.} Bxf5 23. dxc6+ Ke7 24. exf5 Qe5+ 25. Kd2 Qxf5 26. Rae1+ Kf8 {[#]} 27. Rxh6 {Played: Qb3-e6} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.13"]
[White "Saravana, Krishnan P."]
[Black "Vignesh N R"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2313"]
[BlackElo "2472"]
[Annotator "ChessBase"]
[PlyCount "86"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:02:50]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:01]} 3. d4 {[%emt 0:00:01]} cxd4 {[%emt 0:00:02]} 4. Nxd4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:04]} 5. Nc3 {[%emt 0:01:05]} a6 {[%emt 0:02:26]} 6. Bd2 {[%emt 0:01:37]} Nc6 {[%emt 0:05:08]} 7. Nxc6 {[%emt 0:01:44]} bxc6 {[%emt 0:00:02]} 8. Bd3 {[%emt 0:00:10]} g6 {[%emt 0:00:38]} 9. O-O {[%emt 0:09:08]} Bg7 {[%emt 0:00:11]} 10. Kh1 {[%emt 0:03:14]} O-O {[%emt 0:02:24]} 11. Qe1 {[%emt 0:00:55]} a5 {[%emt 0:06:05]} 12. Rd1 {[%emt 0:06:17]} a4 {[%emt 0:01:01]} 13. f4 {[%emt 0:00:27]} Nd7 {[%emt 0:01:56]} 14. f5 {[%emt 0:16:12]} e6 {[%emt 0:03:13]} 15. fxe6 {[%emt 0:13:31]} fxe6 {[%emt 0:00:15]} 16. Qg3 {[%emt 0:01:28]} Ne5 {[%emt 0:07:32]} 17. Bg5 {[%emt 0:01:30]} Rxf1+ {[%emt 0:02:00]} 18. Bxf1 {[%emt 0:01:56]} Qf8 {[%emt 0:01:09]} 19. Bc1 {[%emt 0:10:24]} d5 {[%emt 0:07:47]} 20. Be2 {[%emt 0:05:13]} Ba6 {[%emt 0:07:01]} 21. Bxa6 {[%emt 0:05:02]} Rxa6 {[%emt 0:00:13]} 22. exd5 {[%emt 0:00:13]} cxd5 {[%emt 0:01:40]} 23. a3 {[%emt 0:01:07]} Qf5 {[%emt 0:01:54]} 24. Bf4 {[%emt 0:04:48]} Nc4 {[%emt 0:00:30]} 25. Bc1 {[%emt 0:00:49]} Nd6 {[%emt 0:22:36]} 26. Qe1 {[%emt 0:03:49]} Rc6 {[%emt 0:03:14]} 27. h3 {[%emt 0:06:58]} d4 {[%emt 0:02:52]} 28. Ne2 {[%emt 0:00:48]} Qxc2 {[%emt 0:02:31]} 29. Bf4 {[%emt 0:03:14]} Nf5 {[%emt 0:03:17]} 30. Ng1 {[%emt 0:01:26]} Qc5 {[%emt 0:02:41]} 31. Nf3 {[%emt 0:00:15]} Qd5 {[%emt 0:00:24]} 32. Qb4 {[%emt 0:01:20]} Qb3 {[%emt 0:04:59]} 33. Qxb3 {[%emt 0:00:40]} axb3 {[%emt 0:00:02]} 34. Rd3 {[%emt 0:00:11]} g5 {[%emt 0:02:04]} 35. Nxg5 {[%emt 0:01:17]} e5 {[%emt 0:00:01]} 36. Bd2 {[%emt 0:00:11]} Rc2 {[%emt 0:00:43]} 37. Ne4 {[%emt 0:00:51]} Rxb2 {[%emt 0:00:09]} 38. a4 {[%emt 0:00:11]} Rb1+ {[%emt 0:04:14]} 39. Kh2 {[%emt 0:00:04]} b2 {[%emt 0:00:12]} 40. Rb3 {[%emt 0:00:05]} Ne3 {[%emt 0:00:03]} 41. g4 {[%emt 0:01:26]} Nc4 {[%emt 0:00:22]} 42. Rb8+ {[%emt 0:00:35]} Kf7 {[%emt 0:00:16]} 43. Rb7+ {[%emt 0:00:31]} Ke6 {[%emt 0:00:41]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.14"]
[White "Neverov, Valeriy"]
[Black "Samant Aditya S"]
[Result "1-0"]
[ECO "E42"]
[WhiteElo "2460"]
[BlackElo "2296"]
[Annotator "ChessBase"]
[PlyCount "97"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:03:16]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:05]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:20]} Bb4 {[%emt 0:00:00]} 4. e3 {[%emt 0:00:05]} b6 {[%emt 0:00:20]} 5. Nge2 {[%emt 0:01:48]} c5 {[%emt 0:00:39]} 6. a3 {[%emt 0:00:24]} Ba5 {[%emt 0:00:10]} 7. Ng3 {[%emt 0:05:49]} Bb7 {[%emt 0:06:55]} 8. Bd2 {[%emt 0:02:36]} O-O {[%emt 0:14:54]} 9. Bd3 {[%emt 0:05:16]} d5 {[%emt 0:13:35]} 10. cxd5 {[%emt 0:03:17]} cxd4 {[%emt 0:02:04]} 11. exd4 {[%emt 0:01:03]} Bxc3 {[%emt 0:00:13]} 12. bxc3 {[%emt 0:01:05]} Qxd5 {[%emt 0:00:16]} 13. f3 {[%emt 0:01:17]} Ba6 {[%emt 0:03:05]} 14. Bc2 {[%emt 0:15:43]} Nc6 {[%emt 0:03:03]} 15. Kf2 {[%emt 0:00:14]} e5 {[%emt 0:12:58]} 16. Ne4 {[%emt 0:12:02]} Nd7 {[%emt 0:07:48]} 17. Be3 {[%emt 0:05:43]} Rad8 {[%emt 0:08:17]} 18. Re1 {[%emt 0:16:44]} f5 {[%emt 0:04:50]} 19. Nd2 {[%emt 0:01:26]} Kh8 {[%emt 0:02:53]} 20. Kg1 {[%emt 0:04:39]} exd4 {[%emt 0:04:21]} 21. cxd4 {[%emt 0:00:14]} Nf6 {[%emt 0:00:25]} 22. Bb3 {[%emt 0:03:42]} Qd6 {[%emt 0:01:05]} 23. Nc4 {[%emt 0:01:21]} Bxc4 {[%emt 0:00:14]} 24. Bxc4 {[%emt 0:00:03]} Nxd4 {[%emt 0:01:12]} 25. Bf2 {[%emt 0:02:19]} f4 {[%emt 0:05:21]} 26. Qd3 {[%emt 0:03:33]} Nc6 {[%emt 0:00:41]} 27. Qxd6 {[%emt 0:00:28]} Rxd6 {[%emt 0:00:04]} 28. Rac1 {[%emt 0:00:18]} Na5 {[%emt 0:01:50]} 29. Bf1 {[%emt 0:04:21]} Rd7 {[%emt 0:00:28]} 30. Bb5 {[%emt 0:00:31]} Rdf7 {[%emt 0:00:27]} 31. Red1 {[%emt 0:00:31]} Nb3 {[%emt 0:05:12]} 32. Rc4 {[%emt 0:02:17]} g5 {[%emt 0:01:05]} 33. h4 {[%emt 0:00:13]} h6 {[%emt 0:00:40]} 34. Rd6 {[%emt 0:00:50]} Nc5 {[%emt 0:01:11]} 35. hxg5 {[%emt 0:02:05]} hxg5 {[%emt 0:00:05]} 36. Bxc5 {[%emt 0:00:10]} bxc5 {[%emt 0:00:04]} 37. Rxc5 {[%emt 0:00:07]} Nh7 {[%emt 0:01:27]} 38. Bd3 {[%emt 0:00:59]} Rg7 {[%emt 0:00:06]} 39. Rh6 {[%emt 0:00:34]} Rfg8 {[%emt 0:00:54]} 40. Rxg5 {[%emt 0:00:51]} Rd7 {[%emt 0:00:34]} 41. Rxg8+ {[%emt 0:01:30]} Kxg8 {[%emt 0:00:05]} 42. Bxh7+ {[%emt 0:00:04]} Rxh7 {[%emt 0:00:06]} 43. Rxh7 {[%emt 0:00:11]} Kxh7 {[%emt 0:00:04]} 44. a4 {[%emt 0:00:17]} a5 {[%emt 0:00:31]} 45. Kf2 {[%emt 0:00:40]} Kg6 {[%emt 0:00:05]} 46. Ke2 {[%emt 0:00:48]} Kf5 {[%emt 0:01:04]} 47. Kd3 {[%emt 0:00:19]} Ke5 {[%emt 0:00:06]} 48. Kc4 {[%emt 0:00:31]} Kf5 {[%emt 0:00:36]} 49. Kd5 {[%emt 0:00:14]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.15"]
[White "Kunal, M.."]
[Black "Lugovskoy, Maxim"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "2288"]
[BlackElo "2453"]
[Annotator "ChessBase"]
[PlyCount "90"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:03:24]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:04]} 3. Nd2 {[%emt 0:00:00]} Nf6 {[%emt 0:00:05]} 4. e5 {[%emt 0:00:01]} Nfd7 {[%emt 0:00:04]} 5. Bd3 {[%emt 0:00:10]} c5 {[%emt 0:00:05]} 6. c3 {[%emt 0:00:07]} Nc6 {[%emt 0:00:03]} 7. Ne2 {[%emt 0:00:07]} cxd4 {[%emt 0:00:04]} 8. cxd4 {[%emt 0:00:10]} f6 {[%emt 0:00:02]} 9. exf6 {[%emt 0:00:12]} Qxf6 {[%emt 0:00:04]} 10. Nf3 {[%emt 0:01:33]} h6 {[%emt 0:00:04]} 11. O-O {[%emt 0:00:55]} Bd6 {[%emt 0:00:03]} 12. Ng3 {[%emt 0:03:23]} O-O {[%emt 0:00:06]} 13. Bc2 {[%emt 0:03:51]} Rf7 {[%emt 0:00:53]} 14. Re1 {[%emt 0:02:21]} Nf8 {[%emt 0:01:26]} 15. Nh5 {[%emt 0:02:36]} Qd8 {[%emt 0:00:10]} 16. Ne5 {[%emt 0:01:38]} Nxe5 {[%emt 0:00:37]} 17. dxe5 {[%emt 0:00:11]} Bc5 {[%emt 0:00:02]} 18. Be3 {[%emt 0:00:17]} d4 {[%emt 0:08:43]} 19. Bf4 {[%emt 0:00:12]} Bd7 {[%emt 0:01:17]} 20. Bd3 {[%emt 0:00:37]} Be8 {[%emt 0:04:53]} 21. Qg4 {[%emt 0:03:41]} Kh8 {[%emt 0:00:34]} 22. Bd2 {[%emt 0:01:18]} Rc7 {[%emt 0:14:42]} 23. h4 {[%emt 0:14:21]} a5 {[%emt 0:12:08]} 24. a3 {[%emt 0:00:39]} b5 {[%emt 0:00:15]} 25. b4 {[%emt 0:10:10]} Bb6 {[%emt 0:00:38]} 26. Nf4 {[%emt 0:06:22]} Bf7 {[%emt 0:05:14]} 27. h5 {[%emt 0:01:44]} axb4 {[%emt 0:03:11]} 28. axb4 {[%emt 0:02:37]} Rca7 {[%emt 0:00:07]} 29. Rxa7 {[%emt 0:01:19]} Rxa7 {[%emt 0:00:02]} 30. Ng6+ {[%emt 0:00:20]} Kg8 {[%emt 0:02:40]} 31. Rc1 {[%emt 0:07:47]} Bc7 {[%emt 0:02:58]} 32. Qe2 {[%emt 0:15:38]} Nd7 {[%emt 0:06:49]} 33. Bxb5 {[%emt 0:09:22]} Bxg6 {[%emt 0:05:29]} 34. hxg6 {[%emt 0:00:04]} Nxe5 {[%emt 0:00:04]} 35. f4 {[%emt 0:01:28]} d3 {[%emt 0:01:43]} 36. Qe4 {[%emt 0:00:09]} Ra2 {[%emt 0:09:25]} 37. fxe5 {[%emt 0:02:48]} Bb6+ {[%emt 0:02:39]} 38. Be3 {[%emt 0:01:51]} Re2 {[%emt 0:00:10]} 39. Bxb6 {[%emt 0:00:42]} d2 {[%emt 0:00:01]} 40. Bxe2 {[%emt 0:05:11]} dxc1=Q+ {[%emt 0:00:09]} 41. Kh2 {[%emt 0:00:06]} Qd5 {[%emt 0:03:50]} 42. Qxd5 {[%emt 0:03:08]} exd5 {[%emt 0:00:01]} 43. Bf2 {[%emt 0:00:57]} Qd2 {[%emt 0:00:32]} 44. Bf3 {[%emt 0:00:10]} Qxf2 {[%emt 0:00:06]} 45. Bxd5+ {[%emt 0:00:03]} Kf8 {[%emt 0:00:02]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.16"]
[White "Navin, Kanna T.u."]
[Black "Harikrishnan.A.Ra"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "2265"]
[BlackElo "2444"]
[Annotator "ChessBase"]
[PlyCount "56"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:49]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:17]} 3. Nc3 {[%emt 0:01:27]} Nf6 {[%emt 0:00:06]} 4. Bg5 {[%emt 0:00:38]} Be7 {[%emt 0:00:03]} 5. e5 {[%emt 0:00:36]} Nfd7 {[%emt 0:00:02]} 6. Bxe7 {[%emt 0:00:20]} Qxe7 {[%emt 0:00:02]} 7. f4 {[%emt 0:00:19]} a6 {[%emt 0:00:01]} 8. Nf3 {[%emt 0:00:10]} c5 {[%emt 0:00:01]} 9. Qd2 {[%emt 0:05:40]} Nc6 {[%emt 0:00:02]} 10. Be2 {[%emt 0:03:46]} cxd4 {[%emt 0:01:07]} 11. Nxd4 {[%emt 0:00:02]} Ndxe5 {[%emt 0:04:40]} 12. Nf5 {[%emt 0:00:02]} exf5 {[%emt 0:01:49]} 13. Nxd5 {[%emt 0:00:43]} Nf3+ {[%emt 0:01:15]} 14. gxf3 {[%emt 0:00:02]} Qh4+ {[%emt 0:00:09]} 15. Kd1 {[%emt 0:00:01]} O-O {[%emt 0:00:26]} 16. c4 {[%emt 0:00:01]} Be6 {[%emt 0:04:13]} 17. Kc2 {[%emt 0:00:24]} Rfd8 {[%emt 0:02:14]} 18. Qe1 {[%emt 0:04:45]} Nd4+ {[%emt 0:02:38]} 19. Kd3 {[%emt 0:01:01]} Qh6 {[%emt 0:04:16]} 20. Kxd4 {[%emt 0:04:44]} Qxf4+ {[%emt 0:00:03]} 21. Kc3 {[%emt 0:00:03]} Bxd5 {[%emt 0:00:13]} 22. cxd5 {[%emt 0:04:29]} Rac8+ {[%emt 0:00:06]} 23. Kb3 {[%emt 0:00:04]} Qe3+ {[%emt 0:00:08]} 24. Ka4 {[%emt 0:00:05]} Rxd5 {[%emt 0:04:58]} 25. Rd1 {[%emt 0:02:26]} Qe8+ {[%emt 0:07:10]} 26. Ka3 {[%emt 0:02:16]} Re5 {[%emt 0:00:05]} 27. Qb4 {[%emt 0:02:34]} a5 {[%emt 0:00:53]} 28. Qxb7 {[%emt 0:01:21]} Qf8+ {[%emt 0:03:14]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.17"]
[White "Rohith Krishna S"]
[Black "Rahman, Ziaur"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2289"]
[BlackElo "2434"]
[Annotator "ChessBase"]
[PlyCount "97"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:29]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:21]} 3. Nc3 {[%emt 0:00:02]} c6 {[%emt 0:00:36]} 4. cxd5 {[%emt 0:02:45]} exd5 {[%emt 0:00:08]} 5. Qc2 {[%emt 0:00:05]} Bd6 {[%emt 0:06:20]} 6. Nf3 {[%emt 0:00:38]} Ne7 {[%emt 0:00:36]} 7. e3 {[%emt 0:02:48]} Bf5 {[%emt 0:00:38]} 8. Bd3 {[%emt 0:00:07]} Bxd3 {[%emt 0:00:06]} 9. Qxd3 {[%emt 0:00:05]} Nd7 {[%emt 0:01:35]} 10. Bd2 {[%emt 0:02:36]} f5 {[%emt 0:04:58]} 11. Ng5 {[%emt 0:08:20]} Nf6 {[%emt 0:01:39]} 12. f4 {[%emt 0:02:33]} Qd7 {[%emt 0:00:55]} 13. Rb1 {[%emt 0:04:42]} O-O {[%emt 0:02:32]} 14. O-O {[%emt 0:00:19]} Ne4 {[%emt 0:00:53]} 15. Nf3 {[%emt 0:08:39]} a5 {[%emt 0:04:36]} 16. Na4 {[%emt 0:08:30]} Qe8 {[%emt 0:02:54]} 17. Rbc1 {[%emt 0:03:25]} Rf6 {[%emt 0:01:52]} 18. Be1 {[%emt 0:05:00]} Ng6 {[%emt 0:06:59]} 19. Rc2 {[%emt 0:02:12]} Nf8 {[%emt 0:04:26]} 20. Ne5 {[%emt 0:06:18]} Rh6 {[%emt 0:09:14]} 21. Nb6 {[%emt 0:06:21]} Ra6 {[%emt 0:03:26]} 22. Qb3 {[%emt 0:01:06]} Bxe5 {[%emt 0:07:05]} 23. fxe5 {[%emt 0:01:30]} Qh5 {[%emt 0:05:35]} 24. g3 {[%emt 0:00:21]} Qf7 {[%emt 0:05:48]} 25. g4 {[%emt 0:03:27]} Rg6 {[%emt 0:06:56]} 26. Rg2 {[%emt 0:00:16]} Qc7 {[%emt 0:00:32]} 27. Nxd5 {[%emt 0:01:34]} cxd5 {[%emt 0:00:09]} 28. Qxd5+ {[%emt 0:00:04]} Rae6 {[%emt 0:06:17]} 29. gxf5 {[%emt 0:07:17]} Rxg2+ {[%emt 0:00:08]} 30. Kxg2 {[%emt 0:00:05]} Qc6 {[%emt 0:00:03]} 31. Qxc6 {[%emt 0:00:49]} Rxc6 {[%emt 0:00:02]} 32. Kf3 {[%emt 0:00:47]} Ng5+ {[%emt 0:00:09]} 33. Kf4 {[%emt 0:00:05]} Nf7 {[%emt 0:02:18]} 34. Bxa5 {[%emt 0:00:09]} Rc2 {[%emt 0:00:16]} 35. Bb4 {[%emt 0:00:51]} Rxb2 {[%emt 0:00:14]} 36. a3 {[%emt 0:00:05]} Nd8 {[%emt 0:00:37]} 37. e6 {[%emt 0:00:09]} Nc6 {[%emt 0:01:36]} 38. e7 {[%emt 0:00:11]} Nxe7 {[%emt 0:00:03]} 39. Bxe7 {[%emt 0:00:04]} Nd7 {[%emt 0:00:12]} 40. e4 {[%emt 0:00:52]} Kf7 {[%emt 0:00:43]} 41. Bd6 {[%emt 0:01:07]} Rxh2 {[%emt 0:00:55]} 42. Rb1 {[%emt 0:03:36]} b6 {[%emt 0:02:14]} 43. e5 {[%emt 0:01:08]} Rh4+ {[%emt 0:00:05]} 44. Ke3 {[%emt 0:00:06]} Ke8 {[%emt 0:00:08]} 45. Rc1 {[%emt 0:00:06]} Kd8 {[%emt 0:00:15]} 46. Rg1 {[%emt 0:00:04]} b5 {[%emt 0:00:36]} 47. Rxg7 {[%emt 0:00:05]} Rh3+ {[%emt 0:00:07]} 48. Ke4 {[%emt 0:00:13]} Nb6 {[%emt 0:00:04]} 49. Bc7+ {[%emt 0:00:03]} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.18"]
[White "Hesham, Abdelrahman"]
[Black "Pranav Vijay"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2429"]
[BlackElo "2265"]
[Annotator "ChessBase"]
[PlyCount "111"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:03:38]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:05]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:06]} b6 {[%emt 0:00:00]} 4. g3 {[%emt 0:00:30]} Ba6 {[%emt 0:00:04]} 5. b3 {[%emt 0:00:15]} d5 {[%emt 0:00:26]} 6. Bg2 {[%emt 0:02:27]} dxc4 {[%emt 0:00:55]} 7. Ne5 {[%emt 0:01:24]} Bb4+ {[%emt 0:00:09]} 8. Kf1 {[%emt 0:02:50]} Bd6 {[%emt 0:00:31]} 9. Nxc4 {[%emt 0:03:19]} Nd5 {[%emt 0:01:16]} 10. Bf3 {[%emt 0:07:20]} Be7 {[%emt 0:13:30]} 11. Kg2 {[%emt 0:00:36]} O-O {[%emt 0:01:22]} 12. e4 {[%emt 0:00:27]} Nf6 {[%emt 0:00:11]} 13. Nc3 {[%emt 0:00:18]} c6 {[%emt 0:06:32]} 14. Bf4 {[%emt 0:14:17]} Nbd7 {[%emt 1:12:04]} 15. Rc1 {[%emt 0:03:08]} Rc8 {[%emt 0:00:00]} 16. Nd6 {[%emt 0:03:21]} Ra8 {[%emt 0:00:00]} 17. h4 {[%emt 0:08:24]} Ne8 {[%emt 0:00:00]} 18. Nc4 {[%emt 0:03:24]} Rc8 {[%emt 0:00:00]} 19. e5 {[%emt 0:11:16]} Bb7 {[%emt 0:00:00]} 20. Ne4 {[%emt 0:01:17]} Rb8 {[%emt 0:00:00]} 21. Qc2 {[%emt 0:03:32]} Nc7 {[%emt 0:00:00]} 22. Ng5 {[%emt 0:00:31]} g6 {[%emt 0:00:00]} 23. Nxh7 {[%emt 0:07:11]} Kxh7 {[%emt 0:00:00]} 24. h5 {[%emt 0:00:02]} Kg7 {[%emt 0:00:00]} 25. hxg6 {[%emt 0:04:42]} fxg6 {[%emt 0:00:00]} 26. Rh6 {[%emt 0:02:14]} Rf5 {[%emt 0:00:00]} 27. g4 {[%emt 0:01:56]} Nf8 {[%emt 0:00:00]} 28. gxf5 {[%emt 0:01:10]} exf5 {[%emt 0:00:00]} 29. Rh2 {[%emt 0:02:37]} Nfe6 {[%emt 0:00:00]} 30. Bh6+ {[%emt 0:00:28]} Kg8 {[%emt 0:00:00]} 31. Ne3 {[%emt 0:00:37]} Nxd4 {[%emt 0:00:00]} 32. Qc4+ {[%emt 0:00:35]} Nce6 {[%emt 0:00:00]} 33. Nxf5 {[%emt 0:05:18]} b5 {[%emt 0:00:00]} 34. Nxe7+ {[%emt 0:00:56]} Qxe7 {[%emt 0:00:00]} 35. Qd3 {[%emt 0:00:20]} Nf5 {[%emt 0:00:16]} 36. Rch1 {[%emt 0:00:46]} Rd8 {[%emt 0:00:31]} 37. Qb1 {[%emt 0:03:19]} c5 {[%emt 0:01:41]} 38. Rh3 {[%emt 0:02:23]} Bxf3+ {[%emt 0:01:36]} 39. Rxf3 {[%emt 0:00:03]} Qb7 {[%emt 0:00:11]} 40. Be3 {[%emt 0:01:01]} Rf8 {[%emt 0:00:08]} 41. Qd3 {[%emt 0:01:15]} Rd8 {[%emt 0:00:50]} 42. Qb1 {[%emt 0:00:33]} Kg7 {[%emt 0:00:56]} 43. Rhh3 {[%emt 0:00:28]} Nxe3+ {[%emt 0:01:17]} 44. fxe3 {[%emt 0:00:04]} Rd2+ {[%emt 0:00:03]} 45. Kf1 {[%emt 0:01:14]} Qd5 {[%emt 0:00:22]} 46. Ke1 {[%emt 0:00:00]} Rg2 {[%emt 0:00:12]} 47. Rf2 {[%emt 0:01:08]} Ng5 {[%emt 0:00:51]} 48. Rh1 {[%emt 0:00:42]} Nf3+ {[%emt 0:01:34]} 49. Ke2 {[%emt 0:00:30]} Qd2+ {[%emt 0:01:08]} 50. Kxf3 {[%emt 0:00:03]} Qxf2+ {[%emt 0:00:04]} 51. Ke4 {[%emt 0:00:01]} Qf5+ {[%emt 0:00:04]} 52. Kd5 {[%emt 0:00:10]} Rd2+ {[%emt 0:00:02]} 53. Kxc5 {[%emt 0:01:08]} Qxe5+ {[%emt 0:00:21]} 54. Kb4 {[%emt 0:00:05]} Qd6+ {[%emt 0:00:13]} 55. Kc3 {[%emt 0:00:08]} Re2 {[%emt 0:00:10]} 56. Qa1 {[%emt 0:01:27]} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.23"]
[Round "8.19"]
[White "Khusenkhojaev, Muhammad"]
[Black "Murali Krishnan B T"]
[Result "1-0"]
[ECO "D21"]
[WhiteElo "2420"]
[BlackElo "2202"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,183,-25,35,33,41,42,60,83,94,56,59,56,98,56,43,38,51,58,51,35,40,15,18,0,12,-6,44,0,0,0,0,0,13,9,18,0,26,26,31,33,29,31,29,29,36,20,33,26,27,0,48,36,47,35,41,21,25,24,25,17,32,14,16,8,11,2,7,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,-2,-2,-2,-6,-11,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,3,6,8,0,8,8,8,8,14,12,16,8,24,24,24,24,27,25,37,20,668,668,668,668,588,588,29977,29978,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29983,29983,29990,29984]} 1. c4 e6 2. Nf3 d5 3. d4 dxc4 4. g3 c5 5. Bg2 cxd4 ({Black should try} 5... Nc6 $11) (5... Nc6 6. Na3 cxd4 7. Nxc4 Bc5 8. O-O Nge7 9. a3 a5 10. Qc2 O-O 11. Rd1 f6 12. e3 e5 13. Ncxe5 fxe5 {0-1 (35) Ponkratov,P (2630)-Vokhidov,S (2480) St Petersburg 2018}) 6. Qxd4 $14 {D21: Queen's Gambit Accepted: 3 Nf3 sidelines} Qxd4 7. Nxd4 a6 $146 ({Predecessor:} 7... Nf6 8. Nb5 Na6 9. O-O Bc5 10. Nd2 Ke7 11. Nxc4 Bd7 {1-0 (24) Romero Holmes,A (2517)-De la Torre Suarez,A (2157) Calvia 2007}) 8. Nd2 {White is slightly better.} Bc5 9. Nc2 Nc6 10. Nxc4 Bd7 11. Be3 Bxe3 12. N2xe3 Ke7 13. Nb6 Rb8 14. O-O-O Nf6 15. g4 {[#] aiming for g5.} h6 16. h4 Be8 17. f4 Rd8 18. Rxd8 Kxd8 19. Rd1+ Kc7 20. Nbc4 Nd8 21. Bf3 Bb5 22. Rd2 Re8 (22... h5 {keeps more tension.} 23. g5 Ng4 24. Rc2 Nc6 25. Rc3 Nb4) 23. Nd6 Re7 24. Nxb5+ axb5 25. Rd3 Nc6 26. Nc2 Rd7 27. Rb3 Nd5 28. e3 Kb6 29. a4 Na7 30. Na3 {[%cal Ra3b5]} Ka5 31. axb5 Nb4 32. b6 Nac6 33. Nc4+ Ka4 34. Ra3+ Kb5 35. Be2 Kc5 36. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Nd5 37. Ra8 Nxb6 38. b4+ Kb5 39. Nxb6+ Kxb6 $11 {[%mdl 4096] Endgame KRB-KRN} 40. Rg8 f6 41. b5 Na7 42. Re8 Nxb5 43. Rxe6+ Kc5 44. g5 hxg5 (44... Nc7 {is more complex.} 45. Re4 Nd5 46. gxh6 gxh6 47. Rc4+ Kd6) 45. hxg5 Nc7 46. Re4 fxg5 47. fxg5 Nd5 48. Rc4+ Kd6 49. Kd2 Ke5 50. Bd3 Rf7 51. Re4+ Kd6 52. Rd4 Kc5 53. Rc4+ Kd6 54. Be4 Ke5 55. Kd3 {[#] And now Rc5 would win.} b6 56. Rd4 Rd7 {...Nb4+ is the strong threat.} 57. Kd2 Rd6 58. Bd3 Ke6 59. Re4+ Kf5 60. Rd4+ Ke6 61. Rc4 Ne7 {Threatens to win with ...Nc6.} 62. Rb4 Nd5 63. Rb3 Ne7 64. Ke2 Nc6 65. Bc4+ Kf5 66. Rb5+ Ne5 67. Ba2 Rc6 {Strongly threatening ...Rc2+.} 68. Bb1+ Ke6 69. Be4 Rd6 70. Kf2 Nd7 71. Bf5+ Ke7 72. Kf3 Nc5 73. Rb4 Rd5 74. Kg4 Rd6 75. Kh5 Kf7 76. Bb1 {Played: Bf5-g6} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.1"]
[White "Ponkratov, Pavel"]
[Black "Bogdanovich, Stanislav"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2622"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,131,38,65,68,73,53,75,54,51,53,75,39,39,28,30,27,55,49,41,34,43,45,71,89,159,45,56,29,29,33,37,19,76,59,94,98,91,100,95,55,437,220,240,232,242,229,237,186,406,397,481,477,518,247,491,514,465,257,235,237,222,235,349,364,355,359,351,350,334,321,461,308,314,314,314,314,310,264,296,296,315,228,356,325,348,352,341,290,279,264,342,348,340,298,543,537,526,501,495,478,526,538,460,393,449,449,417,407,433,442,1437,1275,2321,2321,2307,2281,2182,2047,1937,1309,29967,2072,6605,29952]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. h4 h6 6. Qd2 {B06: Modern Defence} b5 7. f3 Nd7 8. Nge2 {White is better.} (8. a4 b4 9. Nd1 Rb8 10. Bd3 c5 11. c3 Qc7 12. Nh3 Ngf6 13. O-O e5 {½-½ (60) Adams,M (2701)-McShane,L (2677) London 2019}) 8... Nb6 9. b3 $146 ({Predecessor:} 9. Nf4 c6 10. a4 b4 11. Nd1 a5 12. Bd3 Qc7 13. Qf2 Nf6 14. c4 Nbd7 15. Ne2 {½-½ (30) Burke,M (1974)-Jaunooby,A (2186) Aberystwyth 2014}) 9... Bb7 10. Rd1 e6 11. Nf4 Nf6 12. a4 b4 13. Nce2 a5 $1 14. c3 bxc3 $1 15. Nxc3 Nfd7 16. Nb5 O-O (16... Nf6 $142) 17. Bd3 (17. Rc1 $16) 17... h5 18. Ne2 Qb8 19. Bh6 c6 20. Nbc3 c5 (20... Qd8 $11) 21. Bb5 $16 Bxh6 22. Qxh6 cxd4 23. Nxd4 {And now Bxd7 would win.} d5 24. f4 {Nxe6! is the strong threat.} Rc8 $2 {[%mdl 8192] [#]} (24... Nf6 $1 $14) 25. Nce2 (25. Nxe6 $142 $1 {[%mdl 512]} fxe6 26. Qxg6+ {[%mdl 64] Double Attack} Kf8 27. Rh3) 25... Qd6 $18 {[#]} 26. f5 $1 {[%cal Rf5g6]} exf5 27. exf5 {Threatens to win with Ne6!} Ne5 28. Qf4 $40 {[%mdl 128] Black is in trouble.} Rd8 $2 (28... Qe7 {was called for.} 29. O-O Ng4) 29. O-O Ng4 30. fxg6 fxg6 31. Rc1 {Played: Qf4-f7} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.2"]
[White "Stupak, Kirill"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "1/2-1/2"]
[ECO "A33"]
[WhiteElo "2506"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,63,20,32,5,18,19,20,23,12,9,7,10,15,5,7,7,1,0,20,6,27,16,16,16,44,40,75,0,22,0,61,65,47,38,77,75,80,12,76,68]} 1. Nf3 c5 2. c4 Nf6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e6 6. Ndb5 d5 7. Bf4 e5 8. cxd5 exf4 9. dxc6 bxc6 10. Qxd8+ Kxd8 11. Rd1+ Bd7 12. Nd6 Bxd6 13. Rxd6 Rb8 14. Rd2 {A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6} Re8 15. g3 f3 16. Kd1 {The position is equal.} fxe2+ 17. Bxe2 Kc7 18. Bc4 {[#]} Ng4 $146 ({Predecessor:} 18... Be6 19. Bxe6 Rxe6 20. Re1 Rbe8 21. Rxe6 Rxe6 {½-½ (30) Skoberne,J (2541)-Sebenik,M (2549) Maribor 2017}) 19. h3 Ne5 20. Be2 Be6 21. Kc1 Rb4 22. h4 f6 23. Rhd1 a5 24. b3 Bf5 25. Kb2 Bg4 26. Kc1 (26. Ka3 $16) 26... Bf5 $11 27. Kb2 Bg4 28. Ka3 {Hoping for f4.} Bxe2 29. Nxe2 g5 30. hxg5 fxg5 31. Nd4 (31. Nc3 $16) 31... g4 (31... Kb6 $11 {keeps the balance.}) 32. Rh1 {Accuracy: White = 51%, Black = 41%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.3"]
[White "Aleksandrov, Aleksej"]
[Black "Yudin, Sergei"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2592"]
[BlackElo "2508"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,62,51,15,16,18,14,16,12,11,17,0,2,0,16,5,21,4,22,19,19,19,19,19,20,24,22,19,39,32,22,19,19,19,19,19,20,0,0,0,0,0,0,-24,-25,-27,-10,-14,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 Nc6 3. d4 Bg4 4. c4 e6 5. Bg2 Nf6 6. Nbd2 Bd6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} 7. O-O a5 $146 ({Predecessor:} 7... O-O 8. b3 Ne4 9. Bb2 f5 10. Ne1 Qg5 11. Nxe4 fxe4 12. f3 Bf5 13. Qc1 Qg6 14. Qe3 {1-0 (48) Meskovs,N (2558)-Koykka,P (2372) Stockholm 2019}) 8. b3 a4 9. bxa4 O-O 10. Bb2 Nd7 11. e4 dxe4 12. Nxe4 Be7 13. d5 Nce5 14. dxe6 {[%mdl 64] [#] Discovered Attack} Nxf3+ 15. Bxf3 Bxe6 16. Qd4 {[%csl Gb2][%cal Rd4g7]} Nf6 17. Nxf6+ Bxf6 18. Qxd8 Rfxd8 19. Bxf6 gxf6 20. Rfb1 Rxa4 21. Rxb7 Bxc4 22. a3 {[%cal Ba2a3,Ba3a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Be6 23. Bc6 Rc4 24. Bg2 Rd2 25. h4 Rcc2 26. a4 Rxf2 27. Be4 Rcd2 {aiming for ...Rfe2.} 28. a5 {[#] Black must now prevent a6.The position is equal.} Rfe2 29. a6 Re3 30. a7 Rxg3+ 31. Kh1 Rh3+ {[%mdl 64] Double Attack. Accuracy: White = 71%, Black = 84%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.4"]
[White "Goganov, Aleksey"]
[Black "Venkatesh, M.R."]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2583"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,105,16,14,40,37,43,23,37,37,37,29,44,27,36,33,27,25,66,69,112,99,133,130,136,120,123,120,122,110,120,72,77,83,85,88,93,105,128,98,84,86,108,87,75,94,85,52,94,66,118,7,18,10,24,0,92,46,78,83,67,-6,129,12,12,12,25,17,23,25,64,70,208,5,77,93,71,0,0,-8,-8,-8,-8,-12,-3,-12,0,0,0,0,0,0,0,0,0,0,0,-12]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 O-O 5. a3 Be7 6. e4 d6 {E11: Bogo-Indian} (6... d5 $5 {[%cal Rd5e4]}) (6... d5 7. e5 Nfd7 8. Bd3 c5 9. h4 g6 10. O-O Nc6 11. Nb3 dxc4 12. Bxc4 cxd4 13. Re1 a5 14. Bh6 Re8 15. Rc1 Nb6 {1-0 (39) Ding,L (2804)-Saric,I (2689) Batumi 2018}) 7. Be2 Nbd7 8. Qc2 e5 {White has an edge.} 9. Nb1 c6 10. Nc3 Re8 11. O-O a5 12. Be3 $146 ({Predecessor (2):} 12. Bd2 Bf8 13. b4 axb4 14. axb4 Rxa1 15. Rxa1 exd4 16. Nxd4 d5 17. exd5 cxd5 18. c5 {0-1 (42) Bursa,R (2118)-Jalowiec,H (2065) Wysowa 2007}) 12... Ng4 13. Bd2 $36 {[%mdl 2048] White has the initiative.} Bf8 14. d5 c5 15. Rab1 g6 16. h3 Ngf6 17. b3 Nh5 18. Rfe1 Be7 19. Be3 Ng7 20. b4 axb4 21. axb4 cxb4 22. Rxb4 f5 23. Reb1 f4 24. Bd2 Nc5 25. Ne1 Ra3 26. Nd3 Rxc3 27. Bxc3 {Threatens to win with Nxc5.} Nxe4 28. Ba1 Ng5 29. Bg4 Nf5 (29... f3 $14) 30. Rxb7 (30. f3 $16) 30... Bxb7 $11 31. Rxb7 Qc8 32. Qa4 {aiming for Bxf5.} Kf8 (32... Qxb7 $11 33. Qxe8+ Bf8) 33. Rd7 Qa8 34. Ra7 Qb8 35. Nb4 (35. c5 $14) 35... h5 (35... Ne4 $1 $11 36. Kh2 Nxf2 37. Bxf5 gxf5) 36. Nc6 (36. Bxf5 $1 $16 gxf5 37. Bc3) 36... Qb1+ $1 37. Qd1 Qe4 38. Bxf5 Qxf5 39. f3 {And now c5 would win.} Bf6 40. c5 $1 {[%cal Rc5d6]} Nf7 ({Black should play} 40... e4 $1 $14) 41. Bb2 $2 (41. cxd6 $1 $18 {Strongly threatening d7.} Nxd6 42. Bc3) 41... e4 {[#]} (41... dxc5 $11 {keeps the balance.} 42. Qc1 Kg8) 42. Bxf6 $1 $16 Qxf6 {[#]} 43. Qd4 (43. Nd4 $1 $16) 43... Qh4 $11 {( -> ...exf3). The position is equal.} 44. Qf2 Qxf2+ 45. Kxf2 dxc5 46. fxe4 Rxe4 {[%mdl 4096] Endgame KRN-KRN} 47. h4 Ne5 48. Nxe5 Rxe5 49. d6 Rd5 50. Rc7 Rxd6 51. Rxc5 Rd4 52. Kf3 Kg7 53. g3 {Accuracy: White = 55%, Black = 43%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.5"]
[White "Jubin Jimmy"]
[Black "Rozum, Ivan"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2193"]
[BlackElo "2573"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,20,34,0,29,9,28,-20,-21,-29,12,0,29,0,0,-6,0,-15,62,-4,47,-40,-50,-68,-60,-64,-70,-83,-79,-68,-65,-108,-39,-49,0,-97,-84,-147,-145,-258,-245,-344,-340,-334,-340,-664,-618,-599,-596,-727,-801,-788,-765,-788,-786,-782,-756,-908,-886,-966,-1023,-1064,-1047,-1230,-1150,-1819,-1662,-29983,-29984,-29986,-12833,-12833,-12833]} 1. d4 g6 2. g3 Bg7 3. Bg2 c5 4. d5 d6 5. c4 b5 6. Nf3 {A43: Schmid Benoni} Nf6 7. O-O (7. cxb5 Qa5+ 8. Bd2 Qxb5 9. Bc3 O-O 10. O-O Bb7 11. Na3 Qa6 12. Ne1 Nbd7 13. e4 Nb6 14. Qc2 Na4 15. Bxf6 Bxf6 16. Nc4 Qb5 17. Nd3 {0-1 (40) Wang,H (2735)-Giri,A (2734) Beijing 2013}) 7... Bb7 8. Qc2 {White has an edge.} bxc4 9. e4 Nfd7 $146 ({Predecessor:} 9... Nbd7 10. Na3 O-O 11. Nxc4 Ng4 12. Bf4 {0-1 (31) Reichmann,H (2289)-Becker,W (2333) Germany 2005}) 10. Bd2 Na6 11. a3 (11. Bc3 $5 {[%cal Rc3g7]} Nb4 12. Qd2 $11) 11... O-O 12. Bc3 Bxc3 13. Nxc3 e6 (13... Nc7 $11) 14. Rad1 (14. dxe6 $1 $14 fxe6 15. Rad1) 14... Nb6 ({Black should play} 14... e5 $11) 15. Rfe1 (15. dxe6 $1 $14 fxe6 16. Qd2) 15... exd5 $15 16. Nxd5 Bxd5 17. exd5 Nc7 18. h4 Re8 19. Rxe8+ Qxe8 20. Qd2 Qa4 (20... Qe7 $17 21. Ng5 Re8) 21. Ng5 Re8 22. Rc1 (22. Ne4 $11) 22... Qd7 23. Rc3 (23. Ne4 $142 Nbxd5 24. Rxc4) 23... Re5 $36 {[%mdl 2048] White is under strong pressure.} 24. f4 (24. Rf3 $17 {was necessary.} Rxd5 25. Qc2) 24... Re8 25. f5 (25. h5 {is a better defense.}) 25... Qxf5 $19 ({Less strong is} 25... gxf5 26. Kh2 $19) 26. Rf3 Qxd5 27. Qa5 $2 (27. Qxd5 Ncxd5 28. Nxf7) 27... Qd4+ {[%mdl 64] [#] Double Attack} 28. Kh1 f6 29. Qxa7 Nbd5 30. Nh3 Qxb2 {...Re1+ is the strong threat.} 31. Rf1 Qe5 32. Nf4 c3 33. Qb7 Ne3 34. Re1 d5 35. Qc6 d4 36. h5 g5 37. Nd3 Qxg3 38. Rxe3 Rxe3 39. Qxf6 Re6 (39... Rxd3 $142 40. Qd8+ Kf7 41. Bd5+ Nxd5 {[%mdl 64] Overworked Piece} 42. Qxd5+ Kf6 43. Qc6+ Kf5 44. Qd7+ Kf4 45. Qd6+ Kf3 46. Qf6+ Ke3 47. Qe7+ Kd2 48. Qe4 Qh3+ {[%mdl 64] Double Attack} 49. Kg1 Rg3+ 50. Kf2 Qh2+ 51. Kf1 Qg1#) 40. Qd8+ Kg7 {Accuracy: White = 15%, Black = 50%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.6"]
[White "Harikrishnan.A.Ra"]
[Black "Mchedlishvili, Mikheil"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2444"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,-5,-23,-23,-15,-5,-4,-10,-8,-16,-19,-20,-10,-13,-7,-7,-14,-25,-19,-50,-44,-46,-50,-49,-43,-48,-42,-50,-38,-25,0,-66,-66,-56,-60,-68,-73,-79,-38,-55,-39,-168,-150,-182,-183,-267,-200,-206,-212,-282,-282,-284,-267,-258,-249,-268,-268,-268,-263,-399,-397,-381,-390,-373,-365,-366,-342,-29974,-29978,-29978,-29979,-29979,-29980]} 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c3 e5 5. d4 cxd4 6. cxd4 {A04: Unusual lines after 1 Nf3 and King's Indian Attack} e4 $1 {[%cal Re4f3]} 7. Ne5 d5 $146 ({Predecessor:} 7... d6 8. Qa4+ Kf8 9. Nc4 d5 10. Qa3+ Ne7 11. Nd6 Nbc6 12. e3 {0-1 (39) Gronn,A (2352)-Tari,A (2615) Sarpsborg 2018}) 8. Qa4+ {The position is equal.} Nd7 9. Nc3 Ne7 $1 10. Bh3 f6 11. Nxd7 Bxd7 12. Bxd7+ Qxd7 13. Qxd7+ Kxd7 14. f4 Ke6 15. e3 Nc6 16. a3 Na5 17. Bd2 Nb3 18. Rb1 Rhc8 19. Kd1 Bf8 20. Kc2 (20. g4 $11) 20... Na5 $15 21. Kd1 Nc4 22. g4 f5 $36 {[%mdl 2048] Black is in control.} 23. g5 Be7 24. h4 {[#]} h6 $1 {[%mdl 512]} 25. Ne2 ({White should play} 25. Ke2 $15) (25. gxh6 Rh8) 25... Rh8 $19 26. Ng3 hxg5 27. fxg5 (27. hxg5 $142 Rxh1+ 28. Nxh1) 27... Bd6 28. Ne2 Rh5 $1 29. Nf4+ Bxf4 $1 30. exf4 Rah8 31. Be1 Ne3+ $1 32. Ke2 {[#]} Ng2 $1 {[%cal Rg2f4]} 33. Bg3 Nxh4 34. Bxh4 (34. Rbc1 $142) 34... Rxh4 35. Rxh4 Rxh4 {KR-KR} 36. Ke3 Rh3+ 37. Ke2 Rf3 38. Rf1 $2 (38. Rh1 $19) 38... Rxf1 {Black mates.} 39. Kxf1 Kd6 40. b4 {[#]} a5 $1 {[%mdl 512] Accuracy: White = 42%, Black = 85%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.7"]
[White "Viani Antonio Dcunha"]
[Black "Fedorov, Alexei"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2417"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,114,16,36,0,0,0,0,0,0,0,2,8,22,-37,-39,-46,-2,-2,0,0,14,0,22,25,43,7,21,0,0,-11,-25,-25,-29,-7,0,0,25,31,131,125,126,124,121,124,114,0,107,121,186,9,21,0,0,0,335,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Bb7 9. c4 {B45: Sicilian Four Knights} (9. Be2 c5 10. O-O Qc7 11. Nd6+ Bxd6 12. exd6 Qc6 13. f3 c4 14. Qd4 O-O 15. Bxc4 Qxd6 16. Rd1 Rfc8 {½-½ (66) Giri,A (2769)-Grachev,B (2614) Moscow 2019}) 9... Nb4 $1 10. c5 Qb8 11. Nd6+ Bxd6 $1 12. exd6 {Qg4 is the strong threat.} a5 $146 ({Predecessor:} 12... Ba6 13. Qg4 Kf8 14. Bxa6 Nxa6 15. Qc4 Qb4+ 16. Qxb4 Nxb4 {½-½ (25) Van der Wiel,J (2509)-Rabiega,R (2512) Essen 2002}) 13. a3 Nd5 14. Qd4 (14. Bc4 $11) 14... O-O $15 15. Bc4 Ba6 (15... e5 $5 {[%cal Re5d4]} 16. Qd3 Qa7 $15) 16. b3 {[%cal Bb2b3,Bb3c4][%mdl 32]} e5 17. Qd3 Qa7 18. O-O Rfe8 (18... a4 $5) 19. Re1 Re6 20. Ra2 (20. Rb1 {looks sharper.} f5 21. Bd2 Bxc4 22. bxc4 Nf6 23. Rb6) 20... Bxc4 21. bxc4 Nf4 22. Bxf4 exf4 23. Rxe6 fxe6 $11 {[%mdl 4096] Endgame KQR-KQR} 24. Qd4 Rf8 25. Rb2 Rf5 26. Rb6 a4 {[#]} ({Better is} 26... Rf8 $14) 27. Rxc6 $1 $16 dxc6 28. d7 Rf8 29. d8=Q Rxd8 30. Qxd8+ {KQ-KQ} Kf7 31. Qd6 {[%mdl 64] [#] Double Attack} g5 (31... Qb7 $16 32. Qxf4+ Ke7 33. Qh4+ Kf7 34. Qf4+ (34. Qxh7 Qb2 $11) 34... Kg6 35. Qg4+ Kf6 36. Qd4+ Kf7 37. Qf4+) 32. h4 $2 (32. Qxc6 $18 {Black must now prevent h4!} Qa5 33. Qd7+ Kf8 34. Qd6+ (34. Qxe6 Qxc5 35. Qf6+ Ke8 $16) 34... Kf7 35. Qe5) 32... Qa5 $1 $11 33. Qd7+ Kf6 34. Qb7 Kf5 $2 {[%mdl 8192]} (34... Qe1+ $11 {and Black has nothing to worry.} 35. Kh2 gxh4 36. Qxc6 Qxf2) 35. hxg5 $2 (35. Qxh7+ $18 Kf6 36. Qh6+ {[%mdl 64] Double Attack} Kf7 37. Qh5+ (37. hxg5 Qe1+ 38. Kh2 Qxf2 $16) 37... Kf8 38. Qxg5 (38. hxg5 Qe1+ 39. Kh2 Qxf2 $16) 38... Qe1+ 39. Kh2 Qxf2 40. Qf6+ {[%mdl 64] Double Attack} Ke8 41. Qxe6+ {[%mdl 64] Double Attack} Kf8 42. Qf6+ Kg8 43. Qg5+ Kh8 44. Kh3) 35... Qe1+ {The position is equal.} 36. Kh2 Kxg5 37. Qg7+ Kf5 38. Qxh7+ Kg5 39. Qg7+ Kf5 40. Qf7+ Kg5 41. Qg7+ Kf5 42. Qh7+ Kg5 43. Qg8+ Kf6 44. Qf8+ Kg5 45. Qd8+ Kf5 46. Qf8+ Kg5 47. Qd6 Qxf2 48. Qe5+ Kh4 49. Qf6+ Kh5 50. Qe5+ Kh4 51. Qf6+ Kh5 {( -> ...Qh4+)} 52. Qxe6 Qxc5 53. Qe4 Kg5 54. Qd3 Kf6 55. Qe4 Kg5 56. Qd3 Qe7 57. Qc3 Qc5 {Accuracy: White = 61%, Black = 57%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.8"]
[White "Visakh N R"]
[Black "Karthikeyan, P.."]
[Result "1/2-1/2"]
[ECO "D98"]
[WhiteElo "2518"]
[BlackElo "2416"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,71,19,21,0,0,0,0,0,0,0,0,0,22,0,30,17,28,24,37,15,106,0,-4,-8,-2,0,-2,-8,-4,-98,-12,-11,0,0,0,0,0,-6,-2,-2,-2,-5,-7,-5,-5,-8,-8,-7,0,0,0,0,0,-3,-7,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Rd1 Nc6 10. Qb3 {D98: Grünfeld: Russian System: 7 e4 Bg4} (10. Be2 Nb6 11. Qc5 Qd6 12. e5 Qxc5 13. dxc5 Nc8 14. Bf4 Bxf3 15. Bxf3 Nxe5 16. Bxe5 Bxe5 17. O-O c6 18. Rfe1 Bg7 19. Rd7 Rb8 20. Ne4 Bxb2 21. g3 {½-½ (82) Ivanchuk,V (2768)-Ponomariov,R (2764) Khanty-Mansiysk 2011}) 10... e5 11. dxe5 Ncxe5 12. Be2 {[#] Threatens to win with Nxe5.} Nxf3+ 13. Bxf3 Bxf3 14. gxf3 Qe7 $146 ({Predecessor:} 14... Qc8 15. Nd5 Kh8 16. Bd4 Bxd4 17. Rxd4 Nb6 18. Nxb6 axb6 {½-½ (27) Schmidt,G (2139)-Hittinger,C (2024) Bayern 2004}) 15. Nd5 Qh4 16. Nxc7 ({Stronger than} 16. Qxb7 Ne5 $17) 16... Rad8 17. Nd5 ({But not} 17. Qxb7 $2 Rb8 $19) 17... Kh8 18. Bd4 ({Don't blunder} 18. Qxb7 $2 Ne5 $19) 18... Ne5 (18... Bxd4 $11 {remains equal.} 19. Rxd4 Rc8) 19. Bxe5 (19. f4 $16) 19... Bxe5 $11 20. Qe3 $132 {[%mdl 2048] White is not holding back} Rfe8 21. f4 Bxb2 22. O-O g5 23. Qg3 (23. f3 $11 {keeps the balance.}) 23... Qxg3+ ({Black should try} 23... Rxe4 $17 {aiming for ...Bd4.} 24. Nc3 Rxd1 25. Nxe4 Qxg3+ 26. fxg3 Bd4+ 27. Kg2 Rxf1 28. Kxf1 gxf4 29. gxf4 b6) 24. hxg3 {The position is equal.} gxf4 25. Nxf4 Rxd1 26. Rxd1 Rxe4 $17 {[%mdl 4096] Endgame KRB-KRN} 27. Nh5 {[#] Rd8+ would kill now.} h6 (27... Bd4 {looks sharper.} 28. Kg2 b6 29. f3 Re5 30. g4 Rd5) 28. Rd7 Ra4 29. Rxb7 Rxa2 30. Rxf7 Kg8 31. Rd7 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 32. Nf4 Ra1+ 33. Kg2 a4 34. Ra7 a3 35. Nd5 Bd4 36. Ra4 {Accuracy: White = 52%, Black = 56%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.9"]
[White "Pranav Vijay"]
[Black "Vishnu Prasanna. V"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2265"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,85,13,4,8,-18,22,-4,-15,-12,0,-4,0,0,0,-17,15,14,24,0,43,-4,0,0,0,-51,-50,-70,-58,-61,-64,-64,-66,-152,-112,-112,-112,-171,-170,-162,-191,-227,-216,-385,-192,-176,-177,-450,-446,-717,-664,-1189,-338,-6220,-1180,-1095,-950,-29991,-29976,-29976,-29977,-29969,-6183,-5357,-5306,-2040,-1992,-29998,-29999,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Nbd7 9. f3 h5 10. Be2 Rc8 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} 11. O-O-O (11. a4 Be7 12. O-O O-O 13. a5 Qc7 14. Rfd1 Rfd8 15. Qe1 Nc5 16. Nxc5 dxc5 17. Na4 Rxd1 18. Rxd1 {0-1 (54) Leko,P (2731)-Karjakin,S (2770) Sochi 2014}) 11... Be7 12. Kb1 b5 {The position is equal.} 13. Nd5 Bxd5 14. exd5 Nb6 15. Bxb6 Qxb6 16. Bd3 Kf8 $146 ({Predecessor:} 16... O-O 17. Rhe1 Rfe8 18. f4 Bf8 19. Bf5 {0-1 (64) Pavoni,F (2310)-Cremasco,G (2472) ICCF email 2009}) 17. Rhe1 Re8 18. f4 Bd8 19. Bf1 e4 20. Nd4 h4 21. Nf5 (21. c4 $11) 21... Qc5 $15 22. g4 hxg3 $1 ({Of course not} 22... Nxg4 $6 23. Qg2 $14) 23. hxg3 Ng4 24. Bg2 g6 25. b4 ({Better is} 25. Ne3 $15 Nxe3 26. Rxe3) 25... Qb6 26. Ne3 ({Avoid the trap} 26. Qc3 $2 Bf6 $19) 26... Nxe3 27. Rxe3 (27. Qxe3 $17 f5 28. Qxb6 Bxb6 29. Re2) 27... Rh2 $36 {[%mdl 2048] Threatens to win with ...Rxg2! Black is really pushing.} 28. Rde1 Bf6 29. c3 Rc8 30. g4 $2 (30. R1e2 {might work better.}) 30... a5 (30... g5 $142 31. f5 a5) 31. g5 Bg7 {aiming for ...axb4.} 32. a3 $2 (32. R1e2) 32... axb4 33. axb4 (33. cxb4 $142 Qa7 34. R1e2) 33... Qa7 {Hoping for ...Ra8.} 34. Rg3 {[#]} Rc4 $2 (34... Qa3 $2 35. Qa2 $19) (34... Rxg2 $1 {[%mdl 512]} 35. Qxg2 Rxc3 36. Qxe4 Rc8 37. Qe7+ {[%mdl 64] Decoy} Qxe7 38. Rxe7 Kxe7 39. Re3+ Kd7) 35. Qb2 $2 {[#]} (35. Qa2 Qxa2+ 36. Kxa2 Bxc3 37. Re2) 35... Bxc3 (35... Rxg2 $142 $1 {[%mdl 512]} 36. Qxg2 Bxc3 37. Rxc3 Rxb4+ 38. Kc1 Qa1+ {[%mdl 64] Double Attack} 39. Kd2 Rb2+ {[%mdl 64] Skewer} 40. Rc2 Rxc2+ 41. Kxc2 Qa2+ {[%mdl 64] Double Attack} 42. Kd1 Qxg2) 36. Rxc3 {[#]} Rxg2 $1 {[%mdl 512]} 37. Qb3 (37. Qxg2 Rxb4+) 37... Qd4 38. Rxc4 bxc4 {KQR-KQR} ({Worse is} 38... Qxc4 39. Qxc4 bxc4 40. Rxe4 $11) 39. Qa3 e3 (39... c3 $142 40. Rc1 Rb2+ 41. Qxb2 cxb2 42. Rc6 e3 43. Rc2 Qxf4 44. Rxb2 Qe4+ 45. Ka2 e2 46. Rb1 {[#]} Qxb1+ $1 {[%mdl 576] Remove Defender, Promotion} 47. Kxb1 e1=Q+ {[%mdl 64] Double Attack} 48. Kb2 Qxb4+ 49. Kc2 Qd4 50. Kb3 Qxd5+ 51. Kc3 Qxg5 52. Kc4 f5 53. Kd3 f4 54. Kd2 f3+ 55. Kc2 f2 56. Kb2 f1=Q 57. Kb3 Qe3+ 58. Kb4 Qb1+ 59. Kc4 Qed3#) 40. Rxe3 Rg1+ 41. Kc2 Ra1 42. Qc3 Qd1+ 43. Kb2 Qb1# {Accuracy: White = 27%, Black = 64%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.10"]
[White "Vignesh N R"]
[Black "Khusenkhojaev, Muhammad"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2472"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,104,12,12,11,24,23,27,4,27,18,20,12,35,35,55,35,31,-216,22,-112,-14,-459,-452,-732,-719,-691,-683,-783,-782,-762,-79,-89,-84,-65,-79,-82,-81,-54,-56,-74,-32,-43,-30,-22,-30,-35,0,-27,0,-35,-31,-45,0,-25,0,-137,-165,-137,-129,-133,-133,-133,-133,-133,-133,-301,-300,-302,-286,-439,-439,-439,-439,-439,-439,-582,-474,-605,-580,-832,-837,-936,-936,-936,-936,-951,-936,-936,-936,-1189,-1169,-1685,-1647,-1124,-981]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 a6 6. c3 d6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} Ba7 8. Nbd2 O-O 9. b4 {White has an edge.} h6 10. Re1 Re8 11. Rb1 $146 ({Predecessor:} 11. Nf1 Be6 12. Bxe6 Rxe6 13. Ng3 Ne7 14. d4 Ng6 {½-½ (38) Aronian,L (2767)-Carlsen,M (2842) Saint Louis 2018}) 11... d5 12. exd5 Nxd5 13. Qb3 Be6 14. Nxe5 $2 (14. Ne4 $14) 14... Nf4 $2 (14... Nxe5 $19 15. Rxe5 Nxc3 $1 {[%mdl 512]} 16. Rxe6 Rxe6 17. Bxe6 (17. Qxc3 Bd4 $17) 17... Qh4 18. Bxf7+ Kh8) 15. Ndf3 {[#]} (15. d4 $1 $11) 15... Nxe5 (15... Bxf2+ $1 $17 {[%mdl 512]} 16. Kxf2 Nxe5 17. Bxf4 (17. Rxe5 Nxd3+ 18. Bxd3 Bxb3 $17) 17... Nxd3+ {[%mdl 64] Double Attack} 18. Kg1 Nxf4) 16. Nxe5 $4 {[%mdl 8192] [#]} (16. Rxe5 $11 {and White has nothing to worry.} Bxf2+ 17. Kh1 (17. Kxf2 Nxd3+ 18. Bxd3 Bxb3 $17) 17... Nxd3 18. Rxe6 fxe6 19. Qc2 Nxc1 20. Rxc1) 16... Bxf2+ $1 $19 {[%mdl 512]} 17. Kxf2 (17. Kh1 $142 Nxd3 18. Rf1 (18. Nxf7 $2 Bxc4 19. Rxe8+ Qxe8 $19) 18... Bxc4 19. Nxc4) 17... Qh4+ {[%mdl 64] Double Attack} 18. Kf1 {[#]} Nxd3 $1 {[%mdl 512]} 19. Bxd3 Bxb3 20. Rxb3 Rxe5 $2 (20... Qf6+ $19 21. Kg1 Rxe5) 21. Rxe5 $17 Rd8 $1 {[%cal Rd8d3]} ({Much worse is} 21... Qxh2 22. Re1 $11) 22. Bc2 Qxh2 23. Re1 Qh1+ {[%mdl 1024] Black has strong compensation.} 24. Kf2 Qh4+ 25. Kf1 g6 (25... g5 $5 {[%cal Rg5g4]} 26. Be3 Rd6 $15) 26. Be3 Re8 27. Bd2 Qc4+ 28. Kf2 $1 Qh4+ $40 {[%mdl 128] Black attacks.} 29. Kf1 Rd8 30. Be3 Qc4+ 31. Kf2 Qh4+ 32. Kf1 Rd6 33. Bd4 (33. Rbb1 $1 $11) 33... Qf4+ $1 34. Kg1 {Intending Re8+ and mate.} Rxd4 {[%mdl 64] Decoy} 35. cxd4 {[#] And now Rd3 would win.} Qd2 $1 {[%cal Rd2e1][%mdl 64] Double Attack} 36. Re8+ Kg7 37. Rf3 {Re7! is the strong threat.} Qc1+ 38. Kh2 $2 (38. Rf1 $17 {was the only defense.} Qxc2 39. Re7) 38... Qxc2 $19 {[%mdl 4096] Endgame KQ-KRR} 39. Re7 Qc4 {[%mdl 64] Double Attack} 40. Rd7 {[#]} (40. b5 $142) 40... Qe6 $1 {[%cal Re6d7] Black is clearly winning.} 41. Rd8 c6 {Played: Qe6-e7} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.11"]
[White "Muthaiah AL"]
[Black "Taher, Yoseph Theolifus"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2367"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,100,30,41,37,43,43,31,34,44,32,40,37,55,49,191,186,191,187,220,217,232,222,230,216,233,257,247,230,268,261,267,260,266,279,260,232,342,353,332,284,313,327,314,314,347,343,566,559,543,540,570,558,530,437,429,361,393,384,386,386,362,330,440,448,416,429,394,391,670,611,583,540,653,658,998,902,4794,4698,1643]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. f3 h6 9. Bh4 d5 10. e3 Nbd7 11. cxd5 exd5 12. Bd3 c5 13. Ne2 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} Qe7 (13... Re8 14. Bb5 Re6 15. O-O Qe7 16. Bf2 Rc8 17. Qd2 Nf8 18. Rac1 a6 19. Bd3 Rec6 20. Ng3 g6 21. dxc5 bxc5 {1-0 (37) Zhou,J (2597)-Yuan,Q (2393) Shenzhen 2017}) 14. Bf2 a5 15. O-O {White is slightly better.} c4 16. Bc2 b5 17. b4 $146 ({Predecessor:} 17. Ng3 g6 18. Qd2 b4 19. e4 {½-½ (34) Goth,J (2121)-Fiedler,B (2116) Czechia 2008}) 17... axb4 18. Qxb4 Qe6 {[#]} (18... Qxb4 $14 19. axb4 Rfe8) 19. a4 $1 $18 ({Don't take} 19. Qxb5 $6 Rfb8 $14) 19... Qa6 20. Qxb5 Qa7 21. Rfb1 Ba6 22. Qb4 Qc7 23. Bg3 Qc8 24. Nc3 Re8 25. Re1 Nf8 26. Rab1 N8d7 27. Bf5 Qd8 28. Qd6 Bc8 29. Rb5 Nf8 (29... Ra6 $142 30. Qb4 Nc5 31. Rxc5 (31. Bxc8 Nd3 $16) 31... Bxf5) 30. Qxd8 ({Less strong is} 30. Nxd5 Qxd6 31. Bxd6 Nxd5 $16) 30... Rxd8 31. Bc2 Be6 32. Reb1 N8d7 33. e4 {[%cal Re4d5]} dxe4 34. fxe4 g5 $2 {[#]} (34... Nf8 35. d5 Bd7) 35. d5 Bg4 36. h3 Bh5 37. e5 Ne8 38. d6 Ng7 39. Nd5 Ne6 40. Nc7 Rac8 41. Nxe6 fxe6 42. Bf2 Kg7 43. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Bg6 44. Bxg6 Kxg6 45. a6 Kf5 $2 (45... c3 46. a7 Kf5 47. g4+ Ke4) 46. a7 {White is clearly winning.} c3 47. Re1 h5 48. Rb7 Nxe5 49. Rb5 Rxd6 50. Rexe5+ Kf6 {Accuracy: White = 91%, Black = 31%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.12"]
[White "Harshavardhan G B"]
[Black "Neverov, Valeriy"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2343"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,130,39,45,52,41,41,29,40,0,0,0,6,7,27,-1,38,-14,36,34,35,43,39,24,102,102,120,91,87,87,52,35,49,39,36,15,72,75,82,59,58,55,100,84,96,57,77,60,70,56,48,0,31,0,49,63,62,75,127,0,0,0,0,-327,-76,-215,23,23,23,23,33,31,44,45,77,96,65,68,172,172,187,172,180,143,201,144,140,29,29,29,29,29,54,53,50,51,70,29,29,29,37,18,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Na6 7. Be3 c5 {E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4} (7... e5 8. O-O Qe8 9. h3 Nxe4 10. Nxe4 exd4 11. Nxd6 Qe6 12. Bf4 cxd6 13. Re1 d5 14. Rc1 Nc5 15. cxd5 Qxd5 16. Bc4 Qd8 {½-½ (96) Erigaisi,A (2544)-Karthikeyan,M (2611) Sitges 2019}) 8. d5 e6 9. h3 Re8 {White has an edge.} 10. Qd2 exd5 11. exd5 Bf5 12. O-O Qb6 $146 ({Predecessor:} 12... Ne4 13. Nxe4 Bxe4 14. Rac1 Qb6 15. b3 Qb4 {1-0 (42) Guillen Domenech,A-Defez Gomez,J (2215) Mislata 2004}) 13. Nb5 Nb4 14. Nh4 ({Better is} 14. g4 $14 Bd7 15. Nc3) 14... Bd7 15. Nc3 Ne4 16. Nxe4 Rxe4 17. Nf3 Rae8 (17... Na6 $11) 18. a3 $16 Na6 19. Rab1 Rxe3 20. fxe3 Bh6 21. Qd1 Rxe3 22. Bd3 Nc7 23. Kh2 Ne8 (23... Qa6 $11) 24. Re1 Nf6 25. Rxe3 Bxe3 26. Qe2 Bf4+ 27. g3 Bh6 28. Qe7 Kg7 29. b3 Qa5 30. Rf1 {Hoping for Ne5!} (30. Qxd6 Qc3 $17) 30... Qc3 31. Rf2 Bg4 (31... Qxd3 $2 32. Ne5 $1 $18 {[%mdl 512]}) 32. Ne1 Bg5 33. Kg2 Bd1 34. h4 Bc1 {[#]} (34... Bd2 $142 35. Nf3 Qxd3 36. Nxd2 Qd4) 35. Bc2 ({Only move:} 35. Be2 $1 $16 {[%cal Re2d1]} Bxe2 36. Qxe2 (36. Rxe2 Qxb3 37. Rf2 Bb2 $11)) 35... Bg4 $11 {With the idea ...Be3.} 36. Bd3 Bb2 37. Rc2 $4 {[%mdl 8192]} (37. Nf3 $11 Qxd3 38. Ng5) 37... Qd4 $2 (37... Qxb3 $19 {is more deadly.} 38. Qxd6 (38. Rf2 $2 Be5 $19) 38... Bc3) 38. Be2 (38. Rf2 $17 {was worth a try.}) 38... Bc3 $2 (38... Bf5 $19 39. Nf3 Be4) 39. Nf3 $36 {[%mdl 2048] White is pushing.} Bxf3+ $1 40. Bxf3 Bd2 41. Qe2 ({Avoid the trap} 41. Qxb7 $2 Ng4 $19) 41... Be3 42. Qe1 h5 43. Re2 Bh6 44. Re7 {aiming for Qe6.} Kg8 (44... Ng8 $1 $14) 45. Rxb7 $18 {Threatens to win with Qe7!} Be3 46. Re7 Bd2 47. Qe2 a5 48. Rb7 Be3 49. b4 (49. Rb6 $16 Qe5 50. Rxd6 {[%mdl 64] Deflection} Qxd6 51. Qxe3) 49... cxb4 $11 50. axb4 axb4 51. Rxb4 {And now Rb8+ would win.} Qa7 52. Qb2 Kg7 53. Rb7 Qc5 $1 54. Re7 {Qe2 is the strong threat.} Bd4 55. Qb3 Qa5 56. Qd1 Qc3 57. Qe2 ({White should try} 57. Qe1 $1 $14 Qxe1 58. Rxe1) 57... Be5 {The position is equal.} 58. c5 Qxc5 59. Rxe5 dxe5 60. Qxe5 Qc2+ 61. Kf1 Qd3+ 62. Kf2 Qc2+ 63. Kf1 Qc4+ 64. Kf2 Qc5+ 65. Ke2 Qc2+ {Accuracy: White = 49%, Black = 46%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.13"]
[White "Lugovskoy, Maxim"]
[Black "Bharath Subramaniyam H"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2453"]
[BlackElo "2413"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,0,28,18,48,43,59,43,42,43,27,0,43,36,39,40,60,43,75,27,89,51,66,50,74,73,57,37,97,108,144,147,141,89,104,104,113,91,125,89,104,88,103,102,121,112,164,117,111,104,104,83,115,78,104,93,113,100,98,94,97,88,29986,29987,29985,29986]} 1. d4 Nf6 2. Bf4 c5 3. e3 g6 (3... Qb6 4. Nc3 cxd4 5. Qxd4 Qxb2 6. Rb1 Qa3 7. Bxb8 Rxb8 8. Rb3 Qa5 9. Rb5 Qc7 10. Rc5 Qb6 11. Qc4 Kd8 {0-1 (56) Zhang,Z (2636)-Caruana,F (2812) Douglas 2019}) 4. c3 Bg7 5. Nd2 O-O 6. dxc5 {A45: Trompowsky Attack} Nc6 7. h3 $146 ({Predecessor:} 7. Ngf3 Re8 8. h3 b6 9. cxb6 axb6 10. Bh2 Bb7 {1-0 (41) Kudischewitsch,D (2355)-Friedland,M (2168) Kiryat Ono 2016}) 7... a5 8. a4 {White is slightly better.} b6 9. cxb6 Qxb6 10. Bb5 Ba6 (10... Na7 {feels hotter.} 11. Bc4 Qxb2 12. Ne2 d5 13. Bd3 Re8) 11. Bxa6 Rxa6 12. Rb1 e5 13. Bh2 d5 14. Ne2 {And now b4! would win.} (14. Ngf3 {keeps more tension.} Re8 15. O-O Ra7 16. Qe2 e4 17. Nd4) 14... d4 (14... Nd7 $11) 15. cxd4 exd4 16. exd4 Nxd4 17. Nxd4 Qxd4 18. O-O Rb6 (18... Re6 $14) 19. b3 $16 Ne4 20. Nxe4 Qxe4 21. Re1 (21. Bc7 $142 Ra6 22. Rc1) 21... Qb7 22. Re3 Rc8 23. Bg3 h6 24. Qe2 Bf6 25. Rf3 Bg7 26. Rd3 Bf6 27. Qd2 Qe4 (27... Rb4 $16) 28. Re1 Qb4 29. Qd1 Rbc6 30. Kh2 Rc3 {[#] Threatens to win with ...Rxd3.} 31. Ree3 Rxd3 32. Rxd3 Rc3 33. Rd6 Kg7 34. Qd5 $36 {[%mdl 2048] White is in control.} Rc5 35. Qf3 Be5 $2 {[%mdl 8192] [#]} (35... Rf5 $16 36. Qe3 Qc5) 36. Bxe5+ Rxe5 37. Qf6+ {[%mdl 64] Double Attack. Accuracy: White = 78%, Black = 21%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.14"]
[White "Mitrabha, Guha"]
[Black "Rohith Krishna S"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2448"]
[BlackElo "2289"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,143,36,31,43,33,37,19,28,30,31,30,31,30,47,19,33,16,26,9,9,11,8,8,56,7,9,9,12,16,16,0,31,43,39,46,38,32,45,35,69,62,58,45,162,132,132,132,125,114,110,110,110,110,110,110,212,208,172,90,90,90,90,91,96,67,78,72,74,58,62,58,58,58,58,0,58,58,72,72,80,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O b6 7. Qc2 Bb7 8. cxd5 exd5 9. Nc3 Na6 10. Rd1 c5 {E18: Queen's Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3)} 11. Bg5 Re8 12. a3 h6 $146 ({Predecessor:} 12... Ne4) 13. Bxf6 Bxf6 14. dxc5 Nxc5 15. Nd4 Rc8 16. e3 Qd7 17. Nde2 {[%cal Rc3d5]} Ne6 18. Qf5 {[%cal Rg2d5]} Rc5 19. Qd3 Qc8 20. Rac1 Rd8 (20... Ba6 {feels hotter.} 21. Qd2 Bxe2 22. Nxe2 d4 23. Nxd4 Rd8) 21. Nxd5 (21. Bxd5 {seems wilder.} Ng5 22. e4 Qg4 23. Qe3 Bxd5 24. Rxd5 Rcxd5 25. exd5 Nf3+ 26. Kg2) 21... Bxd5 22. Bxd5 Bxb2 23. Rxc5 $1 Qxc5 24. Nf4 Nxf4 {[#]} 25. Bxf7+ $1 {[%mdl 576] Discovered Attack} Kxf7 26. Qxd8 Ng6 27. Qd7+ {[%mdl 1024] White has compensation.} Ne7 28. Qxa7 Bxa3 29. Rb1 Bb4 $1 30. Qa2+ Ke8 (30... Kf8 $1 $14) 31. Qa4+ Nc6 {[#]} 32. Rxb4 $1 {[%mdl 64] Deflection} Qxb4 33. Qxc6+ $16 {[%mdl 4096] Endgame KQ-KQ} Kf7 34. e4 b5 35. Qd5+ Ke7 36. e5 Qe1+ (36... Qb1+ $16 37. Kg2 b4) 37. Kg2 $18 b4 {[#]} 38. Qd6+ (38. h4 $1 $18) 38... Kf7 $16 39. Qd7+ Kg6 40. Qd3+ Kf7 41. f4 g5 $1 42. Qc4+ Ke7 43. Qc7+ Ke8 44. Qc6+ Ke7 45. Qd6+ Ke8 46. Qc6+ Ke7 $1 47. Qc5+ Kf7 48. Qa7+ Ke8 49. Kf3 (49. Qb8+ $16 Kd7 50. Qd6+ Kc8 51. Kf3 (51. Qxh6 Qe2+ 52. Kg1 Qe1+ 53. Kg2 Qe2+ 54. Kg1 Qe1+ 55. Kg2 $11) 51... Qf1+ 52. Kg4 Qe2+ 53. Kf5) 49... gxf4 {The position is equal.} 50. gxf4 Qc3+ 51. Ke4 b3 52. Qb8+ Kd7 53. Qb7+ Ke8 54. Kf5 Qh3+ {[%mdl 64] Double Attack} 55. Kf6 {[%csl Gf6][%cal Rb7e7]} Qh4+ {[%mdl 64] Double Attack} 56. Ke6 {Threatening mate with Qf7+.} Qg4+ 57. Kd6 {[%csl Gd6][%cal Rb7e7]} Qd1+ 58. Kc5 Qc1+ 59. Kd6 {[%csl Gd6][%cal Rb7e7]} Qd1+ $1 60. Ke6 {[%csl Ge6][%cal Rb7e7]} Qg4+ {[%mdl 64] Double Attack} 61. f5 {[%csl Ge6][%cal Rb7e7]} Qc4+ 62. Kd6 {[%csl Gd6][%cal Rb7e7]} Qd4+ 63. Ke6 {[%csl Ge6][%cal Rb7e7]} Qc4+ 64. Kf6 {[%csl Gf6][%cal Rb7e7]} Qh4+ {[%mdl 64] Double Attack} 65. Kg7 Qg5+ {[%mdl 64] Double Attack} 66. Kh8 Qxf5 67. Qb8+ Ke7 {Strongly threatening ...Qf8+.} 68. Qb4+ Ke8 69. Qb8+ Ke7 {...Qf8+ is the strong threat.} 70. Qb4+ Ke8 {( -> ...Qf8+)} 71. Qb8+ Ke7 {And now ...Qf8+ would win.} 72. Qb4+ {Accuracy: White = 58%, Black = 65%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.15"]
[White "Pantsulaia, Levan"]
[Black "Sidhant, Mohapatra"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "2598"]
[BlackElo "2346"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,74,19,12,19,18,15,0,0,0,0,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,8,4,8,5,12,0,33,34,36,41,43,0,0,0,0,-67,-65,-65,-89,-166,-155,-150,-143,-314,-306,-1106,-288,-438,-303,-29978,-29979]} 1. c4 c6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Bg4 5. Ne5 Bf5 6. cxd5 cxd5 7. Nc3 Nc6 {A11: English Opening: 1...c6} 8. Nxc6 bxc6 9. d4 e6 {The position is equal.} 10. Bf4 (10. O-O Be7 11. Be3 O-O 12. Rc1 Qa5 {1-0 (66) Dreev,A (2657)-Belozerov,A (2533) Yaroslavl 2019}) 10... Be7 11. O-O O-O 12. Rc1 Rc8 13. Na4 Nd7 14. Re1 $146 ({Predecessor:} 14. Be3 Nb6 15. f3 Nxa4 16. Qxa4 {½-½ (36) Ledger,A (2397)-Medvegy,N (2376) Catalan Bay 2003}) 14... c5 15. dxc5 Nxc5 16. Be3 {[%cal Re3c5]} Qa5 17. Bxc5 Bxc5 18. Rxc5 Rxc5 19. Nxc5 Qxc5 20. e4 Bxe4 21. Bxe4 dxe4 22. Rxe4 $11 {[%mdl 4096] Endgame KQR-KQR} h6 23. b3 Qb6 24. Qd4 Qc7 25. Rg4 {[%csl Gg4][%cal Rd4g7] [#]} e5 26. Qe3 Qc2 {Strongly threatening ...Qd1+.} 27. Ra4 Rc8 28. Qxe5 Qd1+ $1 29. Kg2 Rc1 $36 {[%mdl 2048] Black is more active.} 30. Rc4 (30. Qb5 $11 Qg1+ 31. Kh3 Qxf2 32. Qb8+ Kh7 33. Qf4) 30... Qh1+ $1 $15 31. Kh3 Qf1+ 32. Kh4 (32. Kg4 $17 Rxc4+ 33. bxc4 Qxc4+ {[%mdl 64] Double Attack} 34. Kf3) 32... Rxc4+ $19 33. bxc4 Qxc4+ 34. f4 $2 (34. Kh3 $17) 34... Qxa2 35. h3 $2 (35. Qb8+ Kh7 36. Kh3) 35... Qa6 $2 (35... a5 {...a4 is the strong threat.} 36. f5 a4) 36. Qe8+ Kh7 {Hoping for ...Qe6.} 37. g4 $2 {[#]} ({Avoid the trap} 37. Qxf7 $2 Qf6+ 38. Qxf6 gxf6 $19) (37. Qb8 $19) 37... Qe6 $1 {Accuracy: White = 45%, Black = 56%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.16"]
[White "Rios, Cristhian Camilo"]
[Black "Girinath, P.D.S."]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2498"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,-9,-6,-20,-19,-26,-21,-36,-36,-35,11,-20,-4,-25,8,16,105,95,76,9,67,-45,0,-10,150,-3,13,-62,-5,-20,-8,0,183,62,51,57,58,43,22,18,22,13,33,3,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-17,-16,-15,0,-17,0,-25,0,0,0,0,0,0,13,-26,1,1,5,-593,656,645,540,580,905,143,4727,4710,29974,29972,29992]} 1. d4 d6 2. e4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 (5. Bc4 Be7 6. O-O O-O 7. Re1 c6 8. a4 a5 9. h3 Nb6 10. Bf1 exd4 11. Nxd4 d5 12. e5 Ne8 13. Qf3 g6 14. Bh6 Ng7 15. Rad1 Nd7 16. Qe3 Nc5 17. Kh1 {0-1 (55) Predke,A (2676)-Morozevich,A (2659) Moscow 2019}) 5... Nxg4 6. Rg1 {C41: Philidor Defence} Ngf6 7. Bc4 h6 8. dxe5 {The position is equal.} dxe5 9. Be3 Qe7 10. Qe2 c6 11. O-O-O Nc5 $146 ({Predecessor:} 11... Nb6 12. Nd2 Bd7 {1-0 (25) Trent,L (2470)-Navarro,S (2259) Porto San Giorgio 2008}) 12. Nh4 Ne6 (12... b5 $11 13. Nxb5 (13. Bxc5 Qxc5 14. Bb3 Rg8 $15) 13... cxb5 14. Bxb5+ (14. Bxc5 Qxc5 15. Bxb5+ Bd7 $17) 14... Ncd7) 13. Nf5 Qc7 14. Qf3 (14. Bxe6 $16 Bxe6 15. Nxg7+ Bxg7 16. Rxg7) 14... g6 (14... Ng5 $1 $11 15. Bxg5 hxg5) 15. Nxh6 (15. Nd4 $1 $14 exd4 16. Bxd4) 15... Rxh6 (15... Qe7 $5 {[%cal Rf8h6]} 16. Ng4 Nxg4 17. Qxg4 Nd4 $11) 16. Qxf6 Be7 $2 (16... Bg7 $11 17. Qf3 Nd4 18. Bxd4 exd4) 17. Qf3 $2 (17. Nb5 $1 $16 {[%cal Rb5c7]} Qb8 18. Nd6+ Qxd6 19. Rxd6 Bxf6 20. Bxh6) 17... Rh7 18. Rd2 ({Better is} 18. h4 $11) 18... Nf4 (18... b5 $15 19. Bb3 a5) 19. Bxf4 $11 exf4 20. e5 {aiming for e6!} Bd7 $2 {[#]} (20... Bf5 $1 $11 {and Black is okay.}) 21. Ne4 ({And not} 21. Qxf4 Bf5 $11) (21. e6 $1 $18 fxe6 22. Rxg6) 21... O-O-O $1 $14 22. Nd6+ $1 ({Much weaker is} 22. Qxf4 Rh4 $15) 22... Bxd6 $1 23. exd6 (23. Rxd6 $5 {[%cal Rg1d1]} Rdh8 24. Qxf4 $14) 23... Qa5 24. Qxf4 {Threatening Re2.} Re8 25. Qd4 Kb8 26. f4 Qb6 27. a4 Qxd4 28. Rxd4 Kc8 29. b4 Kd8 30. Rg2 Bf5 31. Bb3 Kd7 32. c4 Re1+ 33. Kb2 Rh1 34. Rdd2 Rh4 35. c5 {Hoping for Rde2.} Rxf4 36. Bxf7 Rb1+ 37. Kc3 Rf3+ 38. Kc4 $1 Rf4+ 39. Kc3 Rf3+ 40. Kc4 $1 a5 41. bxa5 Rf4+ (41... Ra1 $5 42. Kb4 $8 Rf4+ 43. Kb3 Rf3+ 44. Kb4 Rf4+ 45. Kb3 Rf3+ 46. Kb4 $11) 42. Kc3 Rc1+ 43. Kb3 Rb1+ 44. Ka3 Ra1+ 45. Ba2 {Rge2 is the strong threat.} Be6 {White must now prevent ...Rf3+.} 46. Rge2 $2 {[%mdl 8192]} (46. Rg3 $11) 46... Bd5 $4 {[%mdl 8192] [#]} (46... Rf3+ $19 47. Kb4 Rxa2) 47. a6 {Played: Rd2xd5} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.17"]
[White "Rathnakaran, K.."]
[Black "Vasquez Schroeder, Rodrigo"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2329"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,125,19,26,-19,0,-27,-23,-33,-14,-28,-39,-44,-39,-87,-73,-100,-51,-65,-54,-75,-85,-87,-33,-46,33,37,40,27,33,26,57,55,59,49,54,37,45,15,34,0,0,0,110,104,106,116,110,103,109,108,107,112,110,112,120,117,131,121,172,166,162,171,204,160,250,264,238,164,180,193,181,184,124,36,48,56,70,71,71,58,58,58,187,124,190,182,259,237,279,250,216,202,184,186,310,311,338,305,273,0,224,157,189,175,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 O-O 6. Bb3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (6. O-O d5 7. exd5 Nxd5 8. Re1 Bg4 9. Nbd2 Nb6 10. h3 Bh5 11. Bb3 Qxd3 12. Nxe5 Qf5 13. Nef3 Rad8 14. Qe2 Qc8 15. Ne4 Be7 16. Bf4 Nd5 {½-½ (59) Vachier Lagrave,M (2780)-Shirov,A (2684) Moscow 2019}) 6... d5 7. Qe2 a5 8. a4 {Black has an edge.} h6 9. h3 Be6 {Threatens to win with ...dxe4.} 10. Bc2 d4 $146 ({Predecessor:} 10... dxe4 11. dxe4 Nh5 12. g4 Nf4 {½-½ (35) Tomazini,Z (2436)-Oleksienko,M (2582) Slovenia 2018}) 11. g4 Nh7 12. Nbd2 Be7 13. Nf1 Ng5 14. Ng1 Qd7 15. Ng3 Rfe8 ({Black should try} 15... Rfd8 $17) 16. Nf5 Bxf5 (16... Nh7 $15) 17. gxf5 $14 Nh7 18. h4 Rad8 19. Rh3 Kh8 20. Bb3 Rf8 21. Bd2 Nf6 22. Rg3 Bc5 23. Nh3 Qe7 24. O-O-O dxc3 25. bxc3 Nd4 (25... Bd4 $1 $11 26. Kb2 Bc5) 26. cxd4 $16 {[%mdl 64] Discovered Attack} Bxd4 {( -> ...Qa3+)} 27. Kc2 Qc5+ 28. Bc4 Qa3 {[%csl Gd4][%cal Ra3b2]} 29. Rb1 Qxa4+ 30. Bb3 Qc6+ 31. Kd1 a4 32. Ba2 $1 a3 33. Ke1 Bc3 (33... Rd7 $16) 34. Bxc3 $18 Qxc3+ 35. Kf1 b6 36. Kg2 Rd4 (36... Qd4 $16 37. f4 b5 38. fxe5 (38. Rxb5 $2 Rb8 $19) 38... Qxe5) 37. Ng5 $1 {[%cal Rg5f7]} Rd7 (37... hxg5 38. hxg5 Rxd3 39. Rxd3 $18) 38. Kh2 Qd4 (38... hxg5 $2 39. hxg5 Nh7 40. g6 $1 $18 {[%mdl 512]}) 39. Bc4 c6 ({Avoid the trap} 39... hxg5 $2 40. hxg5 Nh7 41. Rh3 $1 $18 {[%mdl 512]}) 40. Nf3 Qc5 41. Nd2 (41. Qe3 $16 {Hoping for Qxc5.} Qxe3 42. fxe3) 41... b5 $14 42. Ba2 Qc3 43. Nb3 Qb4 44. Rbg1 Rg8 45. Rc1 Rc8 (45... Qd6 $14) 46. Rc5 ({White should play} 46. Nc5 $1 $18 {[%cal Rc5d7]} Ra7 47. Qe3) 46... Re7 (46... Kh7 $16 47. Kh1 (47. Rxe5 c5 $16) 47... Rdc7) 47. Rg1 $1 $18 Rec7 (47... Nd7 $142) 48. Qf3 ({Weaker is} 48. Rxe5 Nd7 $11) 48... Nd7 49. Qg3 {[%csl Gg1][%cal Rg3g7]} Rg8 50. f6 {[%cal Rf6g7]} g6 51. Rxe5 $1 Nxe5 (51... Qd6 $142 52. d4 Nxf6) 52. Qxe5 Rd7 53. Nc5 Ra7 54. Rg2 $2 (54. Qf4 $1 $18 {[%cal Rf4h6]} Kh7 55. Nb3) 54... Qb2 $2 (54... Qd2 $11 55. f3 Qe3) 55. f4 $1 Qc1 {[#]} 56. f5 $1 {Ne6! is the strong threat.} g5 57. hxg5 {The position is equal.} Rxg5 ({Don't go for} 57... hxg5 $2 {[#]} 58. Qg3 $1 $18 {[%mdl 512]}) 58. Rxg5 hxg5 59. Kh3 Qf1+ 60. Kg4 Qe2+ {[%mdl 64] Double Attack} 61. Kxg5 {Black must now prevent Qg3.} Qxa2 62. Qb8+ {[%mdl 64] Double Attack} Kh7 63. Qxa7 {Accuracy: White = 70%, Black = 47%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.18"]
[White "Karthik Venkataraman"]
[Black "Saravanan, V.."]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "2479"]
[BlackElo "2325"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,137,12,20,17,19,25,14,34,1,142,142,135,133,170,177,152,45,180,-222,612,568,660,686,684,668,669,647,639,625,591,525,409,222,220,226,224,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-25,0,0,0,0,0,-15,0,0,0,0,0,-15,-28,-33,-33,-33,-33,-33,-33,-33,-33,-81,-59,-137,-81,-113,-112,-153,-150,-146,-146,-210,-143,-143,-143,-143,-148,-142,-142,-150,-142,-314,-314,-307,-286,-381,-381,-381,-374,-374,-374,-366,-366,-360,-360,-342,-340,-360,-369,-339,-339,-596,-589,-574,-547,-498]} 1. e4 e6 2. d4 Nf6 3. Nc3 d5 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. Qd2 O-O 9. dxc5 Nxc5 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} 10. O-O-O a6 11. h4 b5 {The position is equal.} (11... Qc7 12. Bd3 Nb4 13. Kb1 Nbxd3 14. cxd3 Bd7 15. Rc1 Qb6 16. f5 Rfc8 17. Bg5 {1-0 (41) Shankland,S (2713)-Cori,J (2686) Biel 2019}) 12. Bd3 b4 (12... Nxd3+ $11 {remains equal.} 13. Qxd3 Nb4) 13. Bxc5 $1 $16 Bxc5 14. Bxh7+ $1 Kxh7 15. Ng5+ $1 Kg8 16. Qe2 $146 ({Better is} 16. Qd3 $1 $16 {[%csl Gg5][%cal Rd3h7]} g6 17. h5 Nxe5 18. Qh3) ({Predecessor:} 16. Qd3 g6 17. h5 Nxe5 18. Qh3 Kg7 19. Nce4 Be7 20. hxg6 Rh8 21. Nh7 Nxg6 22. Ng3 Bh4 23. Nh5+ Kxh7 {0-1 (23) Milliet,S (2389)-Hoolt,S (2355) Germany 2018}) 16... g6 {[#]} ({And not} 16... bxc3 17. Qh5 Be3+ 18. Kb1 Re8 19. Qxf7+ Kh8 20. Qh5+ Kg8 21. Qh7+ Kf8 22. Qh8+ Ke7 23. Qxg7#) ({Black should try} 16... Be3+ $14 17. Qxe3 bxc3 18. Qxc3 Qc7) 17. h5 $4 {[%mdl 8192]} (17. Nce4 $1 $18 {[%mdl 512] is the narrow road to win.}) 17... Ra7 $4 {[%mdl 8192] [#]} (17... bxc3 $19 18. hxg6 fxg6) 18. Nce4 $1 $18 {[%mdl 512] And now Nf6+ would win.} dxe4 19. Rxd8 Rxd8 20. Nxe4 Be7 21. Qg4 Kg7 22. hxg6 fxg6 23. Qh3 {Qh7+ would kill now.} Rg8 24. Ng5 (24. g4 $142) 24... Bxg5 25. fxg5 Ne7 26. Rf1 $2 (26. Qh7+ $1 $18 Kf8 27. Rf1+ Ke8 28. Qf7+ Kd8 29. Rd1+ Rd7 30. Rd6) 26... Rh8 $1 $11 {[%cal Rh8h3]} 27. Rf7+ Kxf7 28. Qxh8 Rc7 29. Qf6+ Ke8 30. Qf4 a5 31. a3 bxa3 32. Qa4+ Bd7 33. Qxa3 a4 34. Qb4 Rc8 35. Kb1 Bc6 36. Qg4 Nf5 37. Qc4 Bd7 38. Qb4 Ne7 39. g3 Nf5 40. Qe4 Rc5 41. Qa8+ Rc8 42. Qh1 Bc6 43. Qh8+ {[#]} Kd7 $1 44. Qh7+ {[%mdl 64] Double Attack} Ne7 45. Qh4 $1 Rf8 46. Qd4+ Ke8 47. Ka2 Rf5 48. g4 (48. c3 $15) 48... Rf3 ({But not} 48... Rxg5 $2 49. Qf4 $18) (48... Rf1 $142 {aiming for ...Bd5+.} 49. b3 axb3+ 50. Kxb3 Rb1+ 51. Ka3 Re1) 49. c3 Rf1 $1 {Threatens to win with ...Bd5+.} 50. c4 {[#]} Re1 $1 51. Qd6 Kf7 52. b4 (52. Qd3 $17) 52... axb3+ 53. Kxb3 Re4 54. Qb8 Rxg4 55. Qh8 Rf4 56. Kc3 Bb7 57. Kb3 $2 {[#]} (57. Qh2 $17 Rf5 58. Qh8) 57... Ba6 $1 $19 58. c5 Bb7 59. Qh7+ Ke8 60. Qh8+ Rf8 61. Qh4 Rf5 62. Ka3 Bd5 63. Qa4+ Nc6 64. Qh4 Nxe5 65. Qh8+ Kd7 66. Qg7+ Kc6 {...Rf3+ is the strong threat.} 67. Qe7 $2 (67. Kb4) 67... Kb5 68. Qe8+ Kxc5 {( -> ...Nc4+)} 69. Qe7+ {Accuracy: White = 51%, Black = 64%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.24"]
[Round "9.19"]
[White "Srihari L R"]
[Black "Neelotpal, Das"]
[Result "1-0"]
[ECO "D39"]
[WhiteElo "2302"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,55,0,0,41,27,35,0,0,0,0,0,0,0,0,0,18,0,0,0,65,66,60,-9,55,53,43,47,62,47,93,101,97,81,163,152,159,157,254,254]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 c5 7. Bxc4 cxd4 8. Nxd4 Bxc3+ 9. bxc3 Qa5 10. Bb5+ Bd7 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4} (10... Nbd7 {keeps more tension.} 11. Bxf6 Qxc3+ 12. Kf1 gxf6 13. Nf5 exf5 14. Rc1 Qe5) 11. Bxf6 $1 gxf6 12. Qd3 (12. Qb3 {feels hotter.} O-O 13. O-O Nc6 14. a4 Rfd8 15. Rfd1) (12. Bxd7+ Nxd7 13. O-O Qxc3 14. Qa4 O-O 15. Nxe6 Nb6 16. Qd4 Rfc8 17. Qxc3 Rxc3 18. Nf4 {½-½ (78) Carlsen,M (2875)-Anand,V (2767) Zagreb 2019}) 12... a6 {[%cal Rd7b5] The position is equal.} 13. Bxd7+ Nxd7 14. O-O Qc7 {[#]} 15. Rfd1 $146 ({Predecessor:} 15. Qe3 h5 16. Rab1 Rc8 17. Nf3 b5 18. a4 bxa4 19. Rfd1 Kf8 20. Ra1 Ne5 {½-½ (20) Hracek,Z (2600)-Lalic,B (2540) Medulin 2002}) 15... Rc8 16. Rab1 Nc5 17. Qh3 Qe5 ({Don't blunder} 17... Nxe4 $2 {[#]} 18. Nxe6 $1 {[%mdl 512]} Qc6 19. Nd4 $18) 18. Re1 O-O ({Better is} 18... Qg5 $11) 19. Re3 Kh8 20. Rf1 (20. Nf3 $1 $14 Qf4 21. e5) 20... Nxe4 (20... Rg8 $11) 21. Rfe1 $14 f5 22. f3 $1 $36 {[%cal Rf3e4][%mdl 2048] White has some pressure.} Rxc3 23. Nb3 $1 Rxe3 24. Rxe3 {[%mdl 64] Pin} Rd8 {( -> ...Rd1+)} 25. fxe4 Rd1+ (25... fxe4 $16 26. Re1 f5) 26. Kf2 $18 fxe4 {[#]} 27. Qh6 $1 {[%cal Rh6f8]} Qf5+ {[#]} (27... Rd8 $16 {was called for.} 28. Rxe4 Qf5+ 29. Qf4 Rd5) 28. Rf3 $1 {[%mdl 512] Accuracy: White = 69%, Black = 40%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.1"]
[White "Rozum, Ivan"]
[Black "Ponkratov, Pavel"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2573"]
[BlackElo "2622"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,83,-5,-9,1,-2,6,5,0,0,17,10,10,8,10,8,0,6,27,16,18,16,50,46,94,90,91,83,86,41,35,37,36,37,43,44,52,35,44,32,32,32,32,32,32,32,24,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8]} 1. c4 c6 2. Nf3 d5 3. b3 Bf5 4. Bb2 e6 5. g3 Nf6 6. Bg2 Nbd7 7. O-O Be7 8. d3 h6 9. Nbd2 O-O 10. Qc2 Bh7 11. a3 a5 12. Ne5 Nxe5 {A12: English Opening: 1...c6 with b3 by White} 13. Bxe5 Bd6 (13... Nd7 14. Bc3 Bf6 15. b4 Bxc3 16. Qxc3 Qf6 {½-½ (16) Ruck,R (2567)-Postny,E (2637) Sibenik 2012}) 14. Qb2 Bxe5 15. Qxe5 Nd7 16. Qb2 Qf6 17. Qxf6 Nxf6 18. b4 $146 ({Predecessor:} 18. Rfc1) 18... axb4 19. axb4 Rfc8 20. Nb3 Kf8 21. Rfc1 Nd7 22. cxd5 exd5 23. Bh3 f5 24. f4 Ke7 25. Kf2 Rxa1 26. Rxa1 Rb8 27. Nc5 Nxc5 28. bxc5 $14 {[%mdl 4096] Endgame KRB-KRB} Kf6 29. Rb1 Bg8 30. g4 fxg4 31. Bxg4 Be6 32. Bxe6 Kxe6 {KR-KR} 33. Kf3 g5 34. e3 gxf4 {The position is equal.} 35. exf4 Kf5 36. h4 Re8 37. Rxb7 {Threatens to win with Rf7+.} d4 $1 38. Rf7+ Kg6 39. Rc7 Re3+ 40. Kf2 Rxd3 41. Rxc6+ Kf5 42. Rxh6 {Accuracy: White = 60%, Black = 74%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.2"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Venkatesh, M.R."]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2606"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,95,24,27,13,24,26,18,22,35,20,26,16,21,18,25,0,2,-12,36,20,54,-27,23,14,29,22,23,12,49,0,0,-7,28,25,26,40,46,49,35,0,0,0,0,0,-14,0,0,-65,-15,-92,-65,-64,0,-89,-89,-75,-83,-67,-15,-50,-15,-141,-80,-81,0,0,0,0,0,0,0,0,529,527,690,697,696,695,685,682,683,679,646,629,881,876,852,851]} 1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 Be7 5. O-O Qc7 6. Bb3 {C24: Bishop's Opening: 2...Nf6} (6. Re1 O-O 7. Bb3 d6 8. Nbd2 Nbd7 9. c3 b6 10. Nf1 Nc5 11. Bc2 Re8 12. Ng3 a5 13. d4 Ne6 14. h3 Bf8 {½-½ (48) Kasimdzhanov,R (2670)-Mamedyarov,S (2674) Baku 2005}) 6... d6 7. c3 Bg4 8. h3 {The position is equal.} Bh5 9. Re1 Nbd7 10. Nbd2 Nc5 $146 ({Predecessor:} 10... d5 11. Nf1 dxe4 12. dxe4 {1-0 (37) Lane,G (2440)-Wright,N (2163) Canberra 2006}) 11. Bc2 g5 12. d4 Ne6 $1 13. Nf1 g4 14. hxg4 Bxg4 15. Ng3 (15. d5 $14 Nc5 16. b4) 15... Rg8 16. d5 Ng7 17. dxc6 bxc6 18. Qd3 Ngh5 {With the idea ...Nxg3.} 19. Nxh5 Nxh5 20. Nh2 Be6 21. Bb3 Rg6 22. Bxe6 fxe6 23. Qh3 Nf6 24. Qxe6 Nxe4 25. Qh3 Nf6 $1 26. f4 e4 27. Be3 d5 28. Kh1 (28. c4 $11) 28... h5 29. Bd4 (29. c4 $11) 29... Kf7 30. c4 Qc8 ({Black should play} 30... Qxf4 $15 31. cxd5 cxd5) 31. cxd5 (31. f5 $11 Rg5 32. Qe3 Rxf5 33. Rf1 (33. cxd5 cxd5 34. Rf1 Kg6 $11)) 31... Qxh3 $17 ({Don't play} 31... cxd5 $6 32. f5 $11) 32. gxh3 cxd5 33. Rad1 Rc8 ({Black should try} 33... Bb4 $15 34. Re2 Rg3) 34. Nf1 Bc5 35. Ne3 (35. Bxf6 $11 {keeps the balance.} Kxf6 36. Rxd5) 35... Bxd4 ({Better is} 35... Rg3 36. Kh2 Rf3) 36. Rxd4 Rcg8 (36... Rg3 $17 37. Nxd5 Rxh3+ 38. Kg2 Rd3 39. Rxd3 exd3) 37. Ra4 Rg3 {[%cal Rg3h3] [#]} 38. Rxa7+ Kf8 {[%cal Rg3h3]} 39. Ra8+ Ne8 {[%cal Rg3h3]} 40. Kh2 {And now Re2 would win.} d4 $2 {[%mdl 8192]} (40... Rf3 $1 $11) 41. Ng4 $1 $18 {White is clearly winning.} Rxh3+ 42. Kxh3 {[#] aiming for Nf6.} hxg4+ {[%mdl 4096] Endgame KRR-KRN} 43. Kg2 e3 44. Rd8 Kf7 45. Rxd4 Ng7 46. Rd5 Kf6 47. Rxe3 Rc8 48. Rc3 {Accuracy: White = 52%, Black = 40%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.3"]
[White "Khusenkhojaev, Muhammad"]
[Black "Aleksandrov, Aleksej"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2420"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,8,13,14,16,0,0,-2,43,38,25,4,6,3,43,0,0,-4,5,0,0,0,23,0,20,21,26,-18,-20,-46,-39,-44,-47,-51,-63,-37,-41,-33,-30,-118,-118,-113,-116,-145,-145,-137,-135,-151,-131,-166,-155,-197,-204,-173,-192,-176,-191,-233,-213,-227,-232,-231,-206,-180,-158,-204,-203,-219,-218,-241,-228,-243,-220,-329,-297,-363,-359,-360,-347,-280,-273,-272,-272,-272,-202,-212,-223,-219,-214,-197,-197,-214,-212,-29976,-29977]} 1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 Be7 5. Bb2 b6 (5... O-O 6. Nc3 dxc4 7. Bxc4 a6 8. O-O b5 9. Be2 Bb7 10. Rc1 c5 11. d4 Nbd7 12. dxc5 Nxc5 13. Nd4 Rc8 14. Bf3 Bxf3 15. gxf3 {1-0 (22) Shankland,S (2705)-Ding,L (2811) chess.com INT 2019}) 6. cxd5 {A13: English Opening: 1...e6} exd5 7. Be2 O-O 8. O-O {The position is equal.} Bf5 $146 ({Predecessor:} 8... Bb7 9. d4 Nbd7 10. Nc3 c6 11. Qc2 Re8 12. Bd3 Bd6 13. Rfe1 Rc8 14. Rac1 {0-1 (40) Nyzhnyk,I (2610)-Sevian,S (2585) Saint Louis 2017}) 9. d4 Ne4 10. Nc3 Nxc3 11. Bxc3 Nd7 12. a4 a5 13. Bd3 Bg4 14. h3 Bh5 15. Rc1 Bd6 16. e4 dxe4 17. Bxe4 Rc8 18. d5 Nf6 19. Bxf6 Qxf6 20. Qd4 Qh6 {Strongly threatening ...f5.} 21. Nh4 {White wants to play Nf5.} g6 {White must now prevent ...Be2.} 22. Bf3 Bxf3 23. Nxf3 Rce8 24. Qh4 (24. Nd2 $11) 24... Qxh4 $17 25. Nxh4 Re2 26. Nf3 Bc5 27. Rcd1 Rfe8 28. Nd2 R8e5 29. Nc4 Rf5 30. d6 cxd6 $1 ({And not} 30... Bxf2+ 31. Rxf2 $1 {[%mdl 512]} Rfxf2 32. dxc7 $11) 31. Nxd6 Rfxf2 32. Rxf2 Rxf2 $19 {[%mdl 4096] Endgame KRB-KRN} 33. Kh1 Rb2 34. Ne4 {[#]} Be7 $1 ({Resist} 34... Rxb3 35. Nxc5 bxc5 36. Rd8+ Kg7 37. Ra8) 35. Rd3 f5 36. Nd2 f4 37. Kg1 Bb4 38. Ne4 Kf7 39. Kf1 h6 40. g3 fxg3 41. Nxg3 (41. Rxg3 {keeps fighting.} g5 42. Nf2) 41... Ke6 42. Ne2 Bc5 43. h4 Kf5 44. Rg3 Be7 45. Nd4+ Ke4 46. Nc6 Bd6 47. Rxg6 Bf4 48. Re6+ Kd5 49. Rf6 Be3 ({Don't take} 49... Rxb3 50. Rxf4 Kxc6 51. Rf6+ Kb7 52. Rxh6 $17) 50. Ne7+ Ke4 51. Nf5 $2 (51. h5 $19) 51... Rf2+ {[%mdl 64] Double Attack. Accuracy: White = 39%, Black = 72%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.4"]
[White "Vishnu Prasanna. V"]
[Black "Goganov, Aleksey"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2474"]
[BlackElo "2583"]
[Annotator "TA"]
[PlyCount "189"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,189,1,18,5,4,7,14,14,35,-20,-26,-26,19,0,37,33,33,39,38,35,37,32,47,26,26,43,33,38,51,45,82,79,87,99,153,138,150,135,152,145,133,127,164,95,120,114,106,89,103,89,102,102,102,102,100,95,116,105,114,119,112,114,120,59,87,66,95,51,57,68,97,89,87,53,68,63,48,72,100,105,160,160,114,90,158,164,142,150,167,65,193,139,271,271,270,249,439,214,202,198,195,170,543,538,563,561,550,547,511,494,542,548,525,483,601,539,754,750,591,506,826,774,642,28,35,0,778,696,12842,12844,5202,12793,6211,8058,7108,0,479,0,6207,5769,29983,29984,29984,29985,29984,3004,29971,29970,29968,29969,29983,29983,29983,1134,29981,29982,29982,29981,29981,29982,29982,29983,29970,0,29969,29970,29988,29988,29989,29987,29987,29988,29991,29992,29992,29993,29996,29997]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. Qa4+ c6 6. Qxc4 b5 7. Qd3 Bb7 8. e4 {D43: Semi-Slav: 5 Bg5 h6} b4 9. Na4 Nbd7 10. Be3 {The position is equal.} Be7 11. Nc5 $146 (11. Nd2 $14) ({Predecessor:} 11. Nd2 O-O 12. Nb3 a5 13. f3 Ba6 14. Qc2 Bb5 15. Nbc5 Nxc5 16. Nxc5 {½-½ (53) Dreev,A (2694)-Van Wely,L (2648) Khanty-Mansiysk 2005}) 11... Nxc5 $11 12. dxc5 Qa5 13. Nd2 Rd8 14. Nc4 Qc7 15. Nd6+ $1 Bxd6 16. cxd6 Rxd6 17. Qc4 {e5 is the strong threat.} Nd7 18. Qxb4 c5 19. Qc3 O-O 20. f3 Qc6 21. Bc4 Nb6 22. Be2 Na4 23. Qc2 Ba6 (23... c4 $142) 24. b3 $1 $16 {aiming for Bxa6.} Bxe2 25. Kxe2 Qa6+ 26. Kf2 Nb6 27. Qxc5 (27. Bxc5 $6 Rc6 $14) 27... Rfd8 28. Qc2 ({White should play} 28. Rhc1 $18) 28... h6 29. Rhe1 Nd7 30. Qe2 {Hoping for Qxa6.} Qa5 31. Red1 Ne5 32. Rxd6 Rxd6 33. Kg1 Nc6 34. Qc4 Qd8 35. Rc1 Ne5 36. Qe2 a6 37. h3 Kh7 38. Bf4 (38. Rc2 $16) 38... Qf6 39. Bh2 Rd4 40. Rd1 Qd8 41. Rxd4 $1 Qxd4+ 42. Kh1 Nd3 43. Bg1 $36 {[%mdl 2048] Black is under pressure.} Qc3 $1 44. Be3 Qa1+ 45. Kh2 Qb1 46. Qd2 e5 (46... f6 $142 47. Qc3 Qf1) 47. Qc3 $1 f6 48. h4 Qf1 (48... h5 $142) 49. h5 Ne1 {[%csl Ge1][%cal Rf1g2]} 50. Qd2 Nd3 51. Qc2 (51. a4 $18) 51... Nb4 (51... Qe1 $1 $14 52. Qd2 (52. Qxd3 Qh4+ 53. Kg1 Qe1+ 54. Qf1 Qxe3+ 55. Qf2 Qc1+ 56. Kh2 Qg5 $16) 52... Qf1) 52. Qc1 ({White should try} 52. Qc8 $18) 52... Qe2 (52... Qb5 $16) 53. Qd2 $1 $18 {[%cal Rd2e2]} Qb5 54. a4 Qb8 $2 (54... Qb7 {keeps fighting.} 55. Bc5 Nc6) 55. Qd7 (55. Bc5 $142) 55... Nc2 56. Qf5+ Kh8 57. Bxh6 $1 Nd4 $2 {[#]} (57... Qe8 {is a better chance.}) 58. Bxg7+ $1 {[%mdl 512]} Kxg7 59. Qg6+ Kh8 60. Qxf6+ Kg8 61. Qxa6 Qd8 {intending ...Qh4+.} 62. Qg6+ Kh8 63. Kh3 Qc8+ 64. Kh4 Nxf3+ 65. Kg3 $1 {White threatens h6 and mate.} ({Inferior is} 65. gxf3 Qh3+ 66. Kxh3 $11 (66. Kg5 Qg4+ 67. Kh6 Qg5+ 68. Kxg5 $11)) 65... Nd4 66. h6 {[%csl Gh6][%cal Rg6g7]} Ne6 (66... Qf8 $142 67. a5 Ne2+ 68. Kh2 Nf4) 67. a5 Qd7 68. a6 $2 ({Better is} 68. b4 $18 Qd3+ 69. Kh2) 68... Qd3+ $11 69. Kh4 (69. Kh2 $5 {[%cal Rg6e6]} Qxa6 70. b4 $18) 69... Qxa6 $2 {[%mdl 8192]} (69... Qd8+ $11 70. Kg4 Qd7) 70. g4 $18 Qb6 {( -> ...Qf2+)} 71. Qf6+ $1 Kg8 72. g5 Qc6 73. Qg6+ Kh8 74. Qf6+ (74. b4 $142 Qd7 75. Qf5) 74... Kg8 75. Qg6+ (75. Qxe5 $142 Qd7 76. b4) 75... Kh8 76. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} Qb6 77. Qf6+ Kh7 78. Qf7+ Kh8 79. Qf5 (79. h7 $142 Qd8 80. Qxe6 Qa8 81. Qg8+ $1 {[%mdl 576] Promotion} Qxg8 82. hxg8=Q+ Kxg8 83. b5 Kf8 84. b6) 79... Qd6 80. Qf6+ Kh7 81. b5 Qd4 82. Qf7+ Kh8 83. Qf5 (83. Kh5 $142 Nf4+ 84. Kg4 Nh5 85. Qf8+ (85. Kxh5 Qd1+ 86. Kg6 Qh5+ 87. Kxh5 $11) 85... Kh7 86. Qf5+ Kg8 87. Kxh5 Qd1+ 88. Qg4) 83... Qb2 {[#]} 84. Qf6+ $1 Kh7 85. Qf7+ Kh8 {[#]} 86. Qe8+ $1 Kh7 87. Qe7+ Kh8 88. Qf6+ Kh7 89. Kg4 {White mates.} Qc2 90. Qf5+ Kh8 91. Qxe5+ Kh7 92. Qf5+ Kh8 93. Qxe6 Qg2+ 94. Kf5 Qf1+ 95. Kg6 {Accuracy: White = 62%, Black = 37%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.6"]
[White "Bogdanovich, Stanislav"]
[Black "Lugovskoy, Maxim"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2562"]
[BlackElo "2453"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,45,-14,59,56,39,43,58,0,2,0,0,0,5,0,36,21,8,7,4,15,31,-22,-23,-15,0,0,188,208,192,77,82,72,618,599]} 1. d4 e6 2. c4 Nf6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5 7. g3 Bd6 ({Better is} 7... a6 $11) 8. Bg2 $14 {E10: Blumenfeld Gambit} O-O (8... a6 9. bxa6 O-O 10. O-O Nc6 11. Nc3 Bxa6 12. Bg5 h6 13. Bxf6 Qxf6 14. Rc1 Nd4 15. Ne1 Rab8 {1-0 (60) Kamsky,G (2729)-Feygin,M (2569) Kallithea 2008}) 9. O-O Nbd7 10. Nfd2 (10. Ng5 $14 Nb6 11. a4) 10... a6 $146 ({Predecessor:} 10... Bb7 11. e4 Qc7 12. f4 dxe4 {0-1 (42) Lopez Mulet,I (2403)-Gurel,A (2012) Lisbon 2014}) 11. e4 {Threatens to win with exd5.} axb5 12. exd5 exd5 13. Nc4 bxc4 14. Bxd5+ Nxd5 15. Qxd5+ {[%mdl 64] [#] Double Attack} Kh8 $1 16. Qxa8 {Nd2 is the strong threat.} Qc7 17. Be3 (17. Qg2 $14) 17... Bb7 18. Qa4 {next Nd2 is good for White.} Ne5 19. Nd2 Nf3+ $2 {[#]} (19... Bf3 $11) 20. Nxf3 $18 Bxf3 21. Rfd1 (21. Qxc4 $18 {and the rest is easy. Hoping for Rad1.} Ba8 22. Qa6) 21... Ba8 $16 22. Qa6 Qf7 $2 {[%mdl 8192]} (22... Be5 $16) 23. Qxd6 {Accuracy: White = 57%, Black = 43%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.7"]
[White "Yudin, Sergei"]
[Black "Muthaiah AL"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2508"]
[BlackElo "2367"]
[Annotator "TA"]
[PlyCount "149"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,149,11,20,7,6,9,14,0,0,-19,18,18,30,20,28,0,0,0,11,0,0,0,13,-17,-6,-13,-8,-30,19,0,66,70,86,24,24,22,43,43,43,43,43,43,43,43,48,43,62,44,50,49,57,46,62,43,43,43,93,93,93,93,75,44,44,44,44,44,44,44,44,43,44,43,44,43,43,36,43,36,43,43,43,43,43,43,43,43,67,67,297,285,285,285,283,249,249,249,396,383,385,386,282,337,729,600,510,354,354,341,353,356,441,320,485,450,491,431,618,594,566,563,896,825,3500,3500,1727,2291,1279,1682,29991,29992,29992,29993]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 (5... a6 6. Bxc6 dxc6 7. d3 Nf6 8. h3 O-O 9. Re1 b6 10. d4 cxd4 11. cxd4 c5 12. d5 Bb7 13. Nc3 {½-½ (13) Peng,X (2624)-Pigusov,E (2610) Shanghai 2000}) 6. Re1 O-O 7. d4 a6 8. Bxc6 dxc6 9. h3 cxd4 10. cxd4 c5 11. d5 {B31: Sicilian: 2...Nc6 3 Bb5 g6} b5 12. Nc3 Bb7 13. Bg5 {The position is equal.} h6 {[#]} 14. Bh4 $146 ({Predecessor:} 14. Bf4 Nd7 15. Qd2 Kh7 16. Rad1 c4 17. Qe3 Qc8 18. d6 e5 {1-0 (26) Zarnicki,P (2520)-Quinteros,M (2505) Buenos Aires 1995}) 14... g5 15. Bg3 e6 16. dxe6 Qxd1 17. exf7+ Rxf7 18. Raxd1 b4 19. Na4 {[#] aiming for Ne5.} Nxe4 20. Be5 Bf8 21. b3 Re8 22. Ba1 Rfe7 23. Rc1 Nd2 24. Ne5 Bg7 (24... c4 $1 $11 25. bxc4 Bc6) 25. Nxc5 $14 Bd5 {[%cal Rg7e5]} 26. Red1 (26. Ned3 $16) 26... Bxe5 $11 27. Bxe5 Nxb3 28. axb3 Rxe5 29. Nxa6 Bxb3 30. Rd4 Re1+ 31. Rxe1 Rxe1+ $14 {[%mdl 4096] Endgame KRB-KRN} 32. Kh2 Re2 33. Kg3 Kg7 34. Nxb4 Be6 35. h4 Rb2 36. hxg5 hxg5 37. Nd3 Rd2 38. Nc5 Re2 39. Ne4 Kg6 40. f3 Bf5 41. Rd6+ Kh5 42. Nf2 (42. Nc5 {is more complex.} Re5 43. Nb3 Re6 44. Rd5 Rf6 45. Nd4) 42... Re6 43. Rd5 Kg6 44. Rd2 Rc6 45. Nd1 Kf6 46. Ne3 Be6 47. Rb2 Rc3 48. Kf2 Rb3 49. Rc2 Rb6 50. g4 Ra6 51. Rc5 Ra2+ 52. Kg3 {And now Nd1 would win.} Ra3 53. Nd1 Bf7 $2 (53... Rd3 $1 $14) 54. Rf5+ Kg6 {[#]} 55. Nf2 $1 Be6 56. Re5 Bc8 {If only Black now had time for ...Bb7....} 57. Ne4 Bb7 (57... Kh6 $142 58. Rxg5 Bb7) 58. Re6+ $18 Kf7 59. Nxg5+ Kf8 60. Rf6+ Kg8 $2 (60... Ke8 61. Rf7 Bd5) 61. Ne6 Bd5 62. Nd4 Rd3 63. Rf4 Kh7 64. Nf5 Bb7 65. Nh4 {Strongly threatening Rf7+.} Bc6 (65... Bc8 {is a better defense.} 66. Rf7+ Kg8) 66. Rf6 Rc3 67. g5 Rc5 (67... Rc1 $142 68. g6+ Kg8) 68. Nf5 {Intending g6+ and mate.} Be8 69. f4 Ra5 70. Nd6 Ra3+ 71. Kg4 Ba4 72. Rf7+ Kg8 73. g6 {White wants to mate with Nf5.} Rd3 74. Ne4 Bd1+ 75. Kh4 {Accuracy: White = 70%, Black = 42%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.8"]
[White "Fedorov, Alexei"]
[Black "Ameir, Moheb"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2562"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,127,33,40,34,41,23,36,23,24,26,46,43,37,34,37,37,39,41,29,16,26,23,23,19,40,41,35,39,45,31,30,29,91,92,78,49,66,61,59,50,54,50,70,53,55,58,116,122,169,178,172,83,183,175,181,175,171,160,196,195,194,187,219,219,219,219,232,232,232,228,223,223,217,183,184,190,189,196,179,192,237,200,310,295,287,233,218,212,197,188,255,256,241,240,544,483,536,465,460,411,1105,993,859,837,1570,1449,29970,4710,29985,29986,29989,29990,29990,29991,29992,29991,29994,29995,29996,29975]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. a4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} (6. Nbd2 g5 7. Nf1 g4 8. N3d2 d5 9. exd5 Nxd5 10. Ne3 Nxe3 11. fxe3 f5 12. O-O Bd6 13. d4 Qe7 14. e4 {1-0 (34) Anand,V (2757)-Caruana,F (2822) Bucharest 2019}) 6... g6 7. a5 a6 8. O-O {White is slightly better.} Bg7 9. Nbd2 O-O 10. Re1 Kh7 11. Nf1 Nh5 12. h3 Be6 $146 ({Predecessor:} 12... Nf4 13. Bxf4 exf4 14. d4 Ne7 {0-1 (50) Neelotpal,D (2436)-Raahul,V (2294) Taleigao 2018}) 13. Bxe6 fxe6 14. g3 Na7 15. b4 Nb5 16. Bd2 Qf6 17. N1h2 Rf7 18. Qe2 Raf8 19. Rf1 Qd8 20. Kg2 d5 (20... Qa8 $11 {keeps the balance.}) 21. Rae1 $16 d4 22. Rc1 dxc3 23. Bxc3 Qd6 24. Qc2 c6 25. Rfd1 Qb8 26. Qb3 Qd6 27. Qc4 Na3 (27... Nd4 $14 28. Bxd4 exd4) 28. Qc5 Qxc5 29. bxc5 Nb5 30. Rd2 (30. Ba1 $18 {and White stays clearly on top.}) 30... g5 (30... Nxc3 $16 31. Rxc3 Nf6) 31. Bxe5 $18 Rd8 32. Bxg7 Kxg7 33. Ne5 Rff8 34. Nhf3 Nf6 35. Nc4 Ne8 36. h4 g4 37. Nfe5 h5 38. Rf1 Nf6 39. f3 gxf3+ 40. Nxf3 ({Much less strong is} 40. Rxf3 $6 Nd4 $14) 40... Ng4 41. Nfe5 Rxf1 42. Kxf1 Nxe5 43. Nxe5 {[%mdl 4096] Endgame KRN-KRN} Kf6 44. Nf3 e5 45. Rf2 Rd7 (45... Re8 {was necessary.} 46. Ng1+ Kg7) 46. Kg2 Nc3 47. Ng5+ Kg6 {[#]} 48. Rf5 $1 Rxd3 49. Rxe5 Rd2+ (49... Nd1 $142) 50. Kf3 Rd3+ 51. Kf2 Rd7 $2 (51... Na4 {is a better chance.} 52. Re6+ Kg7 53. Re7+ Kg6) 52. Re6+ Kg7 53. Rd6 Re7 54. Kf3 Na4 (54... Kf8 $142 55. Rh6 Na4 56. Rxh5 Kg8) 55. g4 hxg4+ 56. Kxg4 Nxc5 57. h5 Nd7 58. h6+ Kh8 59. Kf4 {White mates.} c5 {[#]} 60. e5 $1 {[%mdl 512]} c4 (60... Nxe5 61. Rd8+) 61. e6 Nf6 62. Rd8+ Re8 63. e7 c3 64. Ke3 {Accuracy: White = 78%, Black = 46%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.9"]
[White "Ravichandran, Siddharth"]
[Black "Visakh N R"]
[Result "0-1"]
[ECO "C27"]
[WhiteElo "2358"]
[BlackElo "2518"]
[Annotator "TA RC"]
[PlyCount "48"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,54,14,12,13,7,25,-98,-86,-97,-107,-148,-31,-48,-63,-59,-12,-19,-25,-16,-35,-50,-13,-62,-60,-100,-96,-535,-547,-616,-650,-839,-834,-1424,-1431,-1111,-1912,-1823,-1722,-29991,-29992,-29993,-29994,-29994,-29995,-29995,-1036]} 1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. Na4 Bb4+ 6. c3 d5 {C27: Vienna Game: 2...Nf6 3 Bc4 Nxe4} (6... Ba5 7. b4 Bb6 8. Nxb6 axb6 9. f4 exf4 10. Bxf4 d5 11. exd5 O-O 12. Qf3 Re8+ 13. Kd2 Nbd7 14. Nh3 {1-0 (22) Gunnarsson,J (2450)-Sorungbe,A (2234) chess.com INT 2017}) 7. exd5 Be7 8. Bb5+ {[#]} (8. d4 $11 exd4 9. cxd4 (9. Qxd4 O-O $11)) 8... Kf8 $1 $17 {Black is better.} 9. d4 Qxd5 10. Be2 $146 ({Predecessor:} 10. Bf1 Bd7 11. Nc5 Bxc5 12. dxc5 Qxc5 13. Be3 Qe7 14. Be2 {0-1 (66) Netik,J-Vavra,J Czechia 1997}) 10... exd4 ({Black should try} 10... Qxg2 $17 11. Bf3 Qg6) 11. Bf3 Qa5 12. b4 Qa6 {Threatening ...Nc6.} 13. Ne2 Nc6 $36 {[%cal Bb8c6,Bc6b4,Bb4d3][%mdl 2080] Black has the initiative.} 14. O-O dxc3 15. Nexc3 {Strongly threatening b5.} Nxb4 {Hoping for ...Be6.} 16. a3 Nd3 17. Be2 Bf5 18. g4 $2 {[%mdl 8192] [#]} (18. Be3 $17 {is a better chance.}) 18... Nxg4 $1 $19 {[%mdl 512] ...Qg6 is the strong threat.} 19. Bxg4 Qg6 20. f3 {intending Kh1.} h5 {[%mdl 64] Pin} 21. h3 hxg4 22. fxg4 Rxh3 23. Rxf5 Rd8 24. Nd5 {[#]} Rg3+ {Played: Rd8xd5} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.10"]
[White "Sidhant, Mohapatra"]
[Black "Rios, Cristhian Camilo"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2346"]
[BlackElo "2498"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,60,0,0,0,9,15,11,16,50,29,21,26,92,54,109,105,118,107,108,96,98,106,93,102,87,79,73,73,69,55,54,53,52,39,103,53,96,0,110,0,98,0,102,0,87,0,88,0,82]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 c5 5. Nbd2 Nc6 6. c3 Bd6 7. Bg3 O-O 8. Bb5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} a6 (8... Ne7 9. Bd3 Qb6 10. Rb1 Bd7 11. Ne5 Bb5 12. c4 dxc4 13. Nexc4 Bxc4 14. Nxc4 Qb4+ 15. Kf1 Bxg3 {½-½ (42) Grachev,B (2614)-Karjakin,S (2754) Moscow 2019}) 9. Bxc6 bxc6 10. Qa4 Rb8 11. Bxd6 Qxd6 12. Qa3 Rb5 (12... Nd7 $11 {remains equal.}) 13. O-O $146 ({Predecessor:} 13. Nb3 Qb8 14. Nxc5 Rxb2 15. O-O Qb5 {1-0 (29) Toth,C (2348)-Macedo,M (2348) Rio de Janeiro 2018}) 13... Rd8 ({Black should play} 13... Qc7 $14) 14. dxc5 $16 Rxc5 15. Nd4 Ng4 {[%csl Gg4][%cal Rd6h2] [#]} 16. N2f3 f6 17. h3 Ne5 18. Nxe5 fxe5 19. Nb3 Rb5 20. Qxd6 Rxd6 21. Rfd1 Kf7 22. Rac1 Ke7 23. Rd2 Rb8 ({Black should try} 23... a5 $14) 24. Nc5 Rb5 25. Nb3 Rb8 26. Nc5 Rb5 $1 {[%cal Rb5c5]} 27. Nb3 Rb8 $1 28. Nc5 Rb5 $1 {[%cal Rb5c5]} 29. Nb3 Rb8 $1 30. Nc5 Rb5 $1 {Accuracy: White = 52%, Black = 58%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.11"]
[White "Saravanan, V.."]
[Black "Neverov, Valeriy"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2325"]
[BlackElo "2460"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,78,22,44,29,79,62,67,65,68,67,58,61,96,70,94,95,125,89,82,82,79,73,80,70,81,79,95,89,125,0,97,0,101,91,113,111,85,100,129,-24,-27,-47,-45,-27,-43,-41,0,-81,-81,-287,-314,-423,-403,-571,-566,-564,-560,-551,-541,-725,-64,-911,-590,-1685,-1504]} 1. Nf3 g6 2. c4 Bg7 3. d4 Nf6 4. Nc3 d6 5. e4 O-O 6. Be2 Na6 7. O-O e5 8. Re1 Qe8 9. Bf1 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves} h6 10. b3 $146 ({Predecessor:} 10. Rb1 c6 11. b4 exd4 12. Nxd4 Ng4 13. h3 Qe5 14. Nf3 Qe7 15. hxg4 Bxc3 16. Bxh6 Bxe1 17. Qxe1 Bxg4 {1-0 (40) Buhmann,R (2546)-Kotronias,V (2622) Gonfreville 2006}) 10... exd4 11. Nxd4 {White is slightly better.} Ng4 12. f4 Qe7 {[#] And now ...Qh4 would win.} 13. g3 c6 14. Bb2 Bd7 15. Qd2 Rad8 16. Rad1 Bc8 17. Bg2 Rfe8 18. h3 Nf6 19. Qf2 Qc7 20. Nc2 Nd7 21. Ne3 Nf6 22. Nc2 Nd7 $1 23. Ne3 (23. Na4 $16) 23... Qa5 (23... Nf6 $1 $11) 24. Na4 Nf6 25. Bc3 Qc7 26. Qb2 Qe7 27. e5 $2 (27. Nd5 $16 cxd5 28. exd5) 27... dxe5 $11 28. Rxd8 Rxd8 29. Bxe5 Nb4 {Strongly threatening ...b5.} 30. Qa3 c5 31. Nb2 (31. Bc3 $1 $11) 31... b6 $17 32. Rd1 $2 (32. Bc3 $17) 32... Nd7 $19 33. Ng4 ({Of course not} 33. Nd5 Nxd5 34. Bxg7 Nxf4 $19) 33... Nxe5 {[%mdl 64] [#] Discovered Attack} 34. Rxd8+ (34. Nxe5 $142 Bxe5 35. fxe5) 34... Qxd8 35. Nxe5 Bxe5 36. fxe5 Bf5 37. g4 Qd2 $2 (37... Qd4+ $19 38. Kh1 Be4) 38. Kh1 $2 {[%mdl 8192]} (38. gxf5 $15 Qe3+ 39. Kh1) 38... Be6 39. Be4 Qe1+ {[%mdl 64] Double Attack. Accuracy: White = 39%, Black = 52%.} 0-1

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.12"]
[White "Mitrabha, Guha"]
[Black "Harshavardhan G B"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2448"]
[BlackElo "2343"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,105,29,27,4,17,4,86,20,47,47,42,47,50,18,35,7,77,75,114,112,111,87,133,105,105,95,117,115,120,120,118,131,95,124,239,219,301,308,306,309,316,289,456,447,458,466,443,457,471,473,480,393,439,450,505,513,493,400,393,394,435,421,423,277,275,303,280,283,289,259,365,322,330,330,330,329,317,313,653,653,645,607]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. O-O Bd5 9. Qc2 Be4 10. Qb3 Bd5 11. Qc2 Be4 12. Qd1 c5 13. Nc3 Bc6 14. Bf4 {E02: Open Catalan: 5 Qa4+} (14. Be3 cxd4 15. Bxd4 Be7 16. Ne5 Bxg2 17. Kxg2 Nxe5 18. Bxe5 Qa5 19. Bxf6 Bxf6 20. Ne4 O-O 21. Nxf6+ gxf6 22. Qd4 {½-½ (19) Timman,J (2565)-Karpov,A (2628) Murmansk 2016}) 14... cxd4 15. Qxd4 Nb6 $146 (15... Bc5 $11 {keeps the balance.} 16. Qd2 O-O) ({Predecessor (2):} 15... Bc5 16. Qc4 Rc8 17. Qb3 Qb6 18. Qxb6 Nxb6 19. Ne5 Bxg2 20. Kxg2 Bb4 21. Nb5 a6 {½-½ (36) Palit,S (2345)-Prasanna Raghuram,R (2424) Vlissingen 2015}) 16. Be5 (16. e4 $16) 16... Qxd4 17. Bxd4 Nbd7 18. Rfd1 Be7 19. e4 O-O 20. Be3 Nc5 (20... Ng4 $11 {remains equal.}) 21. Ne5 $16 Be8 22. Rac1 b6 23. h3 Rb8 24. g4 h6 25. Nc4 Rd8 26. e5 {[#] And now Rxd8 would win.} Rxd1+ 27. Rxd1 {Hoping for Bxc5.} ({Much worse is} 27. Nxd1 $6 Nd5 $11) 27... Nfd7 28. b4 $36 {[%mdl 2048] White is in control.} Na6 29. a3 Ndb8 {[#]} (29... Nc7 $16) 30. Nd6 $1 $18 Nc7 31. Nc8 $1 {[%csl LRa7,LRe7]} Bh4 32. Nxa7 Nd7 33. f4 Na6 (33... g5 $142 34. Bc6 gxf4) 34. Ncb5 g5 35. Nd6 Nab8 36. Nc6 gxf4 37. Bxf4 Bg5 38. Bg3 Be3+ 39. Kf1 b5 40. Ke2 Bb6 41. Nxb5 Nxe5 42. Ne7+ (42. Nxe5 Bxb5+ 43. Ke1 Rc8 $16) ({Weaker is} 42. Bxe5 Bxc6 43. Bxc6 Nxc6 $18) 42... Kh7 43. Nd6 ({Not} 43. Bxe5 Bxb5+ 44. Ke1 f6 $18) 43... f6 44. Rf1 Kg7 45. Bxe5 fxe5 46. Rxf8 Kxf8 47. Nec8 Bd4 (47... Bd8 $142 48. Nxe8 Kxe8 49. Nd6+ Kd7) 48. Nxe8 Kxe8 49. Nd6+ Kd7 50. Nb5 Bb6 51. Kd3 Nc6 $2 (51... Bf2 52. Bb7 Bg3) 52. Bxc6+ Kxc6 53. Nc3 {Accuracy: White = 63%, Black = 44%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.13"]
[White "Rohith Krishna S"]
[Black "Viani Antonio Dcunha"]
[Result "1-0"]
[ECO "E66"]
[WhiteElo "2289"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,83,42,43,70,60,73,40,64,31,35,19,65,58,70,57,52,77,63,60,129,108,104,91,139,136,199,176,195,215,797,440,785,447,426,429,419,409,396,397,341,295,278,265,1026,961,1978,1953,1627,1497,29985,29986,29972,29973,29988,29989,29993,29994,29994,29995]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nc6 7. d5 Na5 8. Nfd2 a6 9. Nc3 c5 10. Qc2 Bd7 11. b3 b5 12. Bb2 Rb8 13. Rab1 bxc4 14. bxc4 e6 {E66: King's Indian: Fianchetto: 6...c5 7 0-0 Nc6 8 d5} 15. Ba1 Qc7 16. h3 $146 ({Predecessor:} 16. e4 e5 17. Rxb8 Rxb8 18. Rb1 Nh5 19. Bf3 Nf6 20. Rxb8+ Qxb8 21. Ncb1 Qb6 22. Bd1 {1-0 (40) Schweber,S (2425)-Gouder,A (2215) Valetta 1980}) 16... e5 {White is slightly better.} 17. e4 Nh5 18. Ne2 f5 19. Rxb8 Qxb8 20. f4 exf4 21. Bxg7 ({Don't play} 21. Nxf4 Bxa1 22. Rxa1 Nxg3 $17) 21... Nxg7 22. Nxf4 Qc8 (22... fxe4 $14 23. Nxe4 Bf5) 23. Kh2 Nb7 24. Qb2 Nd8 25. exf5 Bxf5 (25... gxf5 $16 26. Rb1 Nf7) 26. g4 $18 Bd7 27. Ne4 $40 {[%mdl 128] Threatens to win with Nf6+. White wants a kill.} Nf7 $2 (27... Ne8 28. Qb6 Nf7) 28. Nf6+ Kh8 29. Nxd7 Qxd7 {[#]} 30. Ne6 $1 {[%csl Ge6][%cal Rb2g7][%mdl 512]} Rg8 {[#]} 31. Qf6 $1 {[%cal Rf6f7]} Ne5 32. Rf4 Qe8 {If only Black now had time for ...Nd7....} 33. Nxg7 {[%mdl 64] Discovered Attack} Rxg7 34. Qxd6 {[%mdl 64] Rf8+ is the strong threat. Double Attack} Rf7 $2 (34... Nf7 35. Qxc5 Qb8) 35. Re4 Re7 36. Qf6+ Kg8 37. d6 Nxg4+ 38. Rxg4 {White mates.} ({Inferior is} 38. hxg4 Rxe4 39. Bxe4 Qxe4 $11) 38... Re2 39. Rf4 Rd2 {[#]} 40. d7 $1 {[%cal Rd7e8][%mdl 64] Discovered Attack} Qb8 (40... Rxd7 41. Bd5+) 41. Qf7+ Kh8 42. Qe8+ {[%mdl 64] Double Attack. Accuracy: White = 75%, Black = 34%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.14"]
[White "Karthikeyan, P.."]
[Black "Srihari L R"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2416"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,85,41,30,47,52,42,12,34,36,27,35,32,38,31,16,16,11,16,16,26,14,29,27,68,59,122,125,112,116,109,121,125,114,122,129,117,125,129,128,134,108,107,103,216,224,400,383,555,550,590,593,876,911,881,884,884,879,941,919,859,880,881,804,1163,1140,2076,1347,1954,1954,1265,1255,5783,1087,29984,29985,29972,5737]} 1. Nf3 d6 2. d4 g6 3. e4 Bg7 4. Bc4 e6 5. Bb3 Ne7 6. O-O O-O {B06: Modern Defence} 7. c3 Nd7 8. Nbd2 b6 {The position is equal.} 9. Re1 Bb7 10. Nf1 Nf6 11. Ng3 c5 12. h4 $146 ({Predecessor:} 12. Bf4 cxd4 13. cxd4 {1-0 (75) Bosiocic,M (2597)-Fercec,N (2451) Mali Losinj 2018}) 12... cxd4 13. Nxd4 d5 {[%cal Rf6e4]} 14. exd5 Bxd5 15. h5 Bxb3 16. axb3 Nfd5 17. Bg5 Bf6 ({Black should play} 17... e5 $1 $14 18. h6 Bh8) 18. Bh6 Re8 19. Qg4 e5 20. Nf3 Qc7 21. Qc4 Rec8 22. Qxc7 Rxc7 23. Nxe5 Bxe5 24. Rxe5 f6 25. Re6 $36 {[%mdl 2048] aiming for c4. White is in control.} Kf7 26. Rd6 g5 (26... Rc6 $16 {is a better defense.} 27. Rd7 Rc7 28. hxg6+ hxg6) 27. Ne4 $18 Rc6 $2 {[#]} (27... Nf5 {was called for.}) 28. Re1 $1 Rac8 (28... f5 {was worth a try.} 29. Nxg5+ Kg8) 29. c4 Nf4 {[#]} 30. Rd7 $1 {Intending Nd6+ and mate.} Nxh5 {Now ...Kg6 and Black clings on.} 31. Nd6+ Rxd6 32. Rexe7+ ({Not} 32. Rxd6 Nc6 $18) 32... Kg6 33. Rxd6 Kxh6 {[%mdl 4096] Endgame KRR-KRN} 34. g4 Nf4 35. Rxf6+ Ng6 36. Rxa7 b5 37. Rff7 {[%csl Ga7][%cal Rf7h7]} Ne5 38. Rxh7+ Kg6 39. Rhc7 Rxc7 40. Rxc7 bxc4 41. bxc4 {Threatens to win with b4.} Nxg4 42. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Ne5 43. b5 {Accuracy: White = 71%, Black = 41%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.15"]
[White "Ziatdinov, Raset"]
[Black "Sundararajan, Kidambi"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2203"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,106,34,39,22,39,22,25,27,53,0,40,33,55,-5,-5,-5,-5,-5,-2,-8,-8,-6,-6,-5,-5,-35,0,-8,2,0,0,0,10,6,16,0,0,0,0,0,0,0,41,32,34,23,27,16,68,68,79,67,82,79,77,0,0,0,0,0,2,0,0,0,28,0,0,0,29,29,29,29,29,29,31,31,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,59,59,98]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. Be2 O-O 6. O-O Nc6 7. d5 Nb8 8. Bf4 {B08: Pirc Defence: Classical System} (8. Re1 e5 9. dxe6 Bxe6 10. Bf4 Nc6 11. Qd2 d5 12. exd5 Nxd5 13. Nxd5 Qxd5 14. c3 Qa5 15. a4 Rad8 16. Qe3 Ne7 17. Bg5 Rfe8 {½-½ (65) Vachier Lagrave,M (2780)-Smirin,I (2607) Moscow 2019}) 8... Bg4 9. h3 Bxf3 10. Bxf3 {White has an edge.} Nbd7 11. g4 $146 (11. a4 $14) ({Predecessor:} 11. Qd2 Re8 12. Rad1 a6 13. g4 Kh8 14. Kg2 {1-0 (63) Quparadze,G (2381)-Paichadze,L (2171) Tbilisi 2006}) 11... Ne5 12. Bg2 c6 13. Bxe5 ({White should try} 13. b3 $14) 13... dxe5 $11 14. dxc6 bxc6 15. Qxd8 Rfxd8 16. Rfd1 h5 17. Bf3 hxg4 18. hxg4 Rd4 19. Ne2 Rb4 20. b3 a5 21. a3 Rb7 22. Nc3 Bf8 23. Na4 e6 24. Rd3 Nd7 25. Rc3 Rc7 26. Be2 Rb8 27. Kg2 c5 28. Rd1 Nf6 29. Kf3 Nh7 30. Rc4 Nf6 (30... Kg7 $11) 31. Nb2 $14 Nd7 32. Ra4 Ra7 {With the idea ...Nb6.} 33. Nc4 Rba8 34. Rxd7 (34. c3 $16) 34... Rxd7 $11 35. Nb6 {[%mdl 64] [#] Double Attack} Rda7 36. Nxa8 Rxa8 {[%mdl 4096] Endgame KRB-KRB} 37. c3 Be7 38. b4 cxb4 39. cxb4 (39. axb4 {feels hotter.} Rc8 40. bxa5 Rxc3+ 41. Kg2 Bc5 42. Rc4) 39... Bd8 40. bxa5 Rxa5 (40... Bxa5 {is interesting.} 41. Bb5 Kf8 42. g5 Ke7 43. Kg4 Ra7) 41. Rxa5 Bxa5 {KB-KB} 42. Bb5 Kf8 43. Ke2 Ke7 44. Kd3 {White is slightly better.} f5 45. f3 fxg4 46. fxg4 g5 47. Kc4 Kd6 48. Be8 Bd2 49. Kb5 Bc1 50. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Be3 51. a5 Kc7 52. Bf7 Kb7 53. Bxe6 Ka7 {Accuracy: White = 67%, Black = 49%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.16"]
[White "Jubin Jimmy"]
[Black "Eraschenkov, Denis"]
[Result "1-0"]
[ECO "D26"]
[WhiteElo "2193"]
[BlackElo "2370"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,80,5,7,6,8,26,19,-15,-15,-19,-11,-47,-43,-45,-18,-27,172,159,176,131,169,136,115,97,135,132,406,387,396,389,384,385,491,489,451,358,350,347,359,345,341,334,314,0,290,276,579,591,576,585,580,576,732,708,1854,703,958,951,892,822,5940]} 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Nf3 a6 5. a4 e6 6. Bxc4 c5 7. O-O Nc6 8. Nc3 cxd4 9. exd4 Be7 10. Bf4 Nb4 11. Re1 O-O 12. Ne5 {D26: Queen's Gambit Accepted: 4 e3 e6 5 Bxc5 c5 sidelines} b6 (12... Bd7 13. Qb3 Bc6 14. Nxf7 Rxf7 15. Bxe6 Be8 16. Be5 Kf8 17. Re3 a5 18. Rae1 Ra6 19. d5 Bd6 {½-½ (126) Volkov,S (2578)-Nesterov,A (2482) Stockholm 2020}) 13. Bg3 $146 ({Predecessor:} 13. Qf3 Ra7 14. Rad1 Bb7 15. Qh3 Nfd5 16. Bc1 Nxc3 17. bxc3 Nd5 18. Rd3 Bf6 19. Rg3 Ne7 {1-0 (40) Kursova,M (2190)-Zaksaite,S (2097) Chalkidiki 2001}) 13... Kh8 14. Qd2 {The position is equal.} Bb7 15. Rad1 Nfd5 16. f4 Rc8 17. Bb3 g6 18. Ne4 f6 $2 {[#]} (18... Kg8 $11 {and Black has nothing to worry.}) 19. f5 $1 $18 {[%cal Rf5g6]} gxf5 {[#] White must now prevent ...Qe8.} 20. Ng6+ $1 {[%mdl 576] Double Attack} Kg7 ({Reject} 20... hxg6 $6 21. Qh6+ Kg8 22. Qxg6+ Kh8 23. Qh6+ Kg8 24. Bxd5 $11) 21. Nxe7 Qxe7 22. Nd6 {Threatens to win with Nxf5+!} Qd7 23. Nxb7 {[%mdl 64] Strongly threatening Nd6. Overworked Piece} Qxb7 $2 {[%mdl 8192]} (23... Rc6 $16) 24. Bd6 {[%mdl 64] Double Attack} a5 25. Bxf8+ Rxf8 26. Rxe6 f4 27. Rde1 Rd8 28. R6e4 Qd7 29. Qe2 Qf5 30. Bxd5 Nxd5 31. Re7+ Kh6 32. Re4 $2 ({White should play} 32. Re8 $18 Rxe8 33. Qxe8) 32... Qg5 $2 {[%mdl 8192]} (32... Kg7 $1 $11 {and Black stays safe.} 33. Re7+ Kg6) 33. Qf3 Rd6 $2 (33... Qg6 34. Re6 Kg7) 34. Re6 {White is clearly winning.} Rxe6 35. Rxe6 {[%mdl 4096] Endgame KQR-KQN} Qf5 36. Qe4 Qh5 37. h3 Qg5 {[#]} 38. Qe5 (38. h4 $142 $1 Qh5 (38... Qxh4 39. Qxd5) 39. Rd6) 38... Kg6 39. Qxg5+ Kxg5 40. Rd6 Kf5 {Accuracy: White = 72%, Black = 27%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.17"]
[White "Saravana, Krishnan P."]
[Black "David, Alberto"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2313"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,29,23,24,27,15,26,-42,43,41,43,43,43,47,70,43,41,42,93,28,87,73,87,76,145,135,167,0,23,0,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Bg5 a6 5. Qd2 b5 6. O-O-O {B06: Modern Defence} Bb7 7. Kb1 Nd7 8. f4 $146 (8. f3 $11) ({Predecessor:} 8. f3 c5 9. Nge2 h6 10. Be3 b4 11. Nd5 e6 12. Ndf4 Qc7 13. Bf2 Ne7 {0-1 (39) Smirnov,A (2306)-Paehtz,E (2440) Jakarta 2013}) 8... Ngf6 (8... c5 $15) 9. e5 $14 b4 10. exf6 exf6 11. Re1+ Kf8 12. Ne4 fxg5 13. fxg5 h6 (13... Bxe4 $14 14. Rxe4 h6) 14. gxh6 ({Much weaker is} 14. Qxb4 Rb8 $15) (14. Bd3 $16) 14... Rxh6 (14... Bxh6 $11 {keeps the balance.} 15. Qxb4 Rb8) 15. Nf3 $16 a5 16. Bd3 Bd5 (16... Nf6 $142) 17. Rhf1 Kg8 18. Neg5 $2 (18. c4 $18 bxc3 19. Nxc3 Bxf3 20. Rxf3) 18... Nf6 19. Qe2 Qd7 {The position is equal.} 20. Bc4 a4 21. Bxd5 Nxd5 22. Nxf7 Qxf7 23. Ng5 Qd7 {[#] Hoping for ...Rf8.} 24. Rf7 Qc8 {Strongly threatening ...Rh5.} 25. Qf3 c6 26. Ree7 Nxe7 {[#]} 27. Rxg7+ $1 {[%mdl 576] Decoy} Kxg7 28. Qf7+ {[%mdl 64] Double Attack} Kh8 29. Qf6+ {[%mdl 64] Double Attack} Kg8 30. Qf7+ Kh8 {Accuracy: White = 60%, Black = 42%.} 1/2-1/2

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.18"]
[White "Vasquez Schroeder, Rodrigo"]
[Black "Samant Aditya S"]
[Result "1-0"]
[ECO "B60"]
[WhiteElo "2487"]
[BlackElo "2296"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,60,56,25,30,27,60,54,60,60,70,72,54,50,50,50,51,53,53,47,55,54,61,52,62,52,59,58,68,55,60,35,43,43,47,57,56,57,66,64,66,46,66]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Qb6 7. Bxf6 gxf6 8. Nb3 e6 9. Qd2 a6 10. O-O-O Bd7 11. f4 O-O-O {B60: Sicilian: Richter-Rauzer: Unusual Black 6th moves and 6...Bd7 without 7 Qd2} 12. Be2 Rg8 (12... h5 13. Rhf1 Na5 14. Nxa5 Qxa5 15. Rf3 Rg8 16. Qd4 f5 17. exf5 d5 18. Qe5 Qc7 19. Qxc7+ Kxc7 {½-½ (56) Kantans,T (2524)-Naiditsch,A (2702) Antalya 2017}) 13. Bh5 Rg7 14. Kb1 Kb8 15. g3 (15. Rhe1 {feels hotter.} Na5 16. Nxa5 Qxa5 17. g4 Be7 18. Re3) 15... Na5 16. Qd4 {White is slightly better.} Qxd4 17. Nxd4 Rc8 18. Rd3 $146 ({Predecessor:} 18. f5) 18... Be7 19. Rhd1 Nc6 20. Nb3 Be8 21. a3 Na7 22. Nd4 Nc6 23. Nf3 Na7 24. Re3 Nc6 25. f5 Bd7 26. g4 Kc7 27. h3 Rd8 28. Ne2 Bc8 29. c4 Kb8 30. Nf4 h6 {Accuracy: White = 69%, Black = 46%.} 1-0

[Event "12th Chennai Open 2020"]
[Site "Chennai"]
[Date "2020.01.25"]
[Round "10.19"]
[White "Kunal, M.."]
[Black "Vignesh N R"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2288"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2020.01.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,116,-4,17,0,23,0,0,0,0,0,6,-13,-14,-14,-7,-10,-10,-13,-13,-15,-6,-12,-10,-21,-22,-35,-36,-34,-31,-52,0,-51,-47,-59,-60,-58,-58,-59,-55,-72,-75,-97,-98,-96,-89,-85,-20,-72,-79,-106,-104,-112,-82,-69,-63,-79,-79,-53,-53,-77,-68,-240,-240,-230,-232,-410,-376,-276,-99,-652,-652,-652,-652,-652,-632,-583,-546,-456,-456,-1116,-1109,-1109,-1102,-1102,-1095,-1080,-1087,-1087,-1080,-1080,-1073,-1073,-1073,-1029,-1006,-993,-993,-993,-993,-755,-748,-895,-887,-873,-847,-847,-746,-414,-381]} 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. e5 dxe5 5. Nxe5 e6 6. g3 {B50: Sicilian: 2...d6, Miscellaneous} (6. Bb5+ Bd7 7. Nxd7 Nbxd7 8. O-O a6 9. Be2 Qc7 10. d4 Bd6 11. g3 cxd4 12. Qxd4 O-O 13. Ne4 Be5 14. Nxf6+ Bxf6 {1-0 (73) Vitiugov,N (2719)-Van Foreest,J (2614) St Petersburg 2018}) 6... Nbd7 (6... Qc7 {is more complex.} 7. f4 Nbd7 8. Nc4 Nb6 9. Ne5 Nbd7) 7. Nxd7 (7. Nc4 {looks sharper.} Nb6 8. b3 Be7 9. Bg2 Nfd5 10. Bb2) 7... Bxd7 8. Bg2 {The position is equal.} Qb6 9. d3 $146 ({Predecessor:} 9. O-O Bc6 10. Bf3 Be7 11. d3 Rd8 12. Qe2 O-O {0-1 (27) Eikelboom,B (2188)-Van Delft,M (2320) Dieren 2000}) 9... Be7 10. Qe2 Bc6 11. O-O Bxg2 12. Kxg2 O-O 13. b3 Nd7 14. Bb2 Bf6 15. a4 Qc6+ 16. Kg1 (16. Qe4 {with more complications.} Qc8 17. Nd1 b6 18. f4 Bxb2 19. Nxb2 Qc7 20. Nc4) 16... Bd4 {Strongly threatening ...f5.} 17. Qe4 Qxe4 18. dxe4 Rfd8 19. Kg2 c4 (19... Nb8 $15) 20. Rfd1 (20. b4 $11) 20... Bxc3 $15 21. Bxc3 cxb3 22. cxb3 Nc5 23. b4 Nxe4 24. Bd4 Rd5 {Threatens to win with ...Rad8.} 25. Be3 Rxd1 26. Rxd1 $17 {[%mdl 4096] Endgame KRB-KRN} Nf6 $1 27. b5 b6 (27... h5 $17) 28. a5 (28. Rd6 $1 $11 {keeps the balance.}) 28... Nd5 ({Inferior is} 28... bxa5 29. Bxa7 $1 {[%mdl 512]} Nd5 30. b6 $16) 29. axb6 axb6 30. Rc1 Nxe3+ 31. fxe3 {KR-KR} Ra2+ 32. Kf3 {[%cal Rc1c8]} h5 33. Rc6 Rxh2 34. Rxb6 g5 35. Rb8+ $2 (35. Rc6 $15) 35... Kg7 $19 36. b6 Rb2 37. b7 $2 (37. e4 {was necessary.}) 37... g4+ 38. Kf4 {[#]} Kf6 $2 (38... f6 $1 $19 39. Ke4 Rb1) 39. Rh8 $2 {[%mdl 8192]} (39. Ke4 $17) 39... Rb4+ 40. e4 e5+ 41. Ke3 Rxb7 42. Rxh5 Rb3+ 43. Kf2 Rf3+ 44. Ke2 (44. Kg2 $142 Re3 45. Rh8) 44... Rxg3 45. Rf5+ Ke6 46. Rg5 Rf3 47. Rg8 Kf6 48. Kd2 Rf4 49. Ke3 Ke7 50. Rg5 f6 51. Rg7+ Kf8 52. Ra7 Rf3+ 53. Ke2 Rb3 54. Kf2 g3+ 55. Kg2 Re3 56. Kh3 Rxe4 57. Kxg3 Rd4 58. Kf3 Ke8 {Accuracy: White = 25%, Black = 77%.} 0-1

