[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.1"]
[White "Carlsen, Magnus"]
[Black "Artemiev, Vladislav"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2865"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,83,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,-1,-54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,176,176,29979,29980,29980,29981,29986,29983,29994,29995,29995,29996,29998,29999]} 1. g3 Nf6 2. Bg2 d5 3. Nf3 g6 4. O-O Bg7 5. c4 dxc4 6. Na3 O-O 7. Nxc4 c5 8. b3 $5 {[%mdl 4] An interesting side line.} Nc6 9. Bb2 Be6 {A09: Réti Opening: 1 Nf3 d5 2 c4.} 10. Rc1 Rc8 11. d3 b6 {The position is equal.} 12. Qd2 {[#]} Qd7 $146 ({Predecessor:} 12... h6 13. Rfd1 Kh7 14. e3 b5 15. Na3 Qb6 16. Qe2 a6 17. d4 cxd4 18. Nxd4 Nxd4 19. Bxd4 {½-½ (77) Rubzova,T (2240)-Aslanian,L (2165) Azov 1991}) 13. Rfd1 Rfd8 14. Nfe5 Nxe5 15. Nxe5 Qd6 16. b4 Nd7 ({Don't play} 16... cxb4 17. Nc6 $14) 17. Nxd7 (17. bxc5 $11 Nxc5 18. Nc4) 17... Bxb2 ({Better is} 17... cxb4 $15 18. Bxg7 Kxg7) 18. Qxb2 $11 {[#] aiming for Ne5.} Bxd7 19. bxc5 Rxc5 20. Rxc5 Qxc5 21. Rc1 Qd6 22. h4 Rc8 23. Rxc8+ Bxc8 24. d4 Bd7 25. e4 f6 26. f4 e5 27. fxe5 fxe5 28. d5 a5 29. Kh2 b5 30. Bh3 Bxh3 31. Kxh3 {[%mdl 4096] Endgame KQ-KQ} b4 32. Qc2 Qd7+ 33. Kg2 Kf7 34. Qf2+ Kg7 35. Qc5 Qg4 $2 (35... Qa4 $1 $11 {and Black has nothing to worry.}) 36. Qe7+ $18 ({And not} 36. Qxa5 Qxe4+ 37. Kh2 Qd4 $11) 36... Kh6 $2 {[#]} (36... Kg8 $18) 37. Qf8+ {White mates.} Kh5 38. Qf3 a4 39. d6 b3 40. Qxg4+ Kxg4 41. d7 bxa2 42. d8=Q {Weighted Error Value: White=0.04 (flawless) /Black=0.25 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.2"]
[White "Abdusattorov, Nodirbek"]
[Black "Giri, Anish"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2651"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,0,0,-2,3,19,12,0,0,0,12,9,9,11,8,6,20,20,20,31,20,16,21,6,6,0,9,0,6,-9,0,-6,-5,-36,-33,-43,-37,-35,-42,-40,0,0,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e4 Bb4 5. d3 d6 6. a3 {A28: English Opening: Four Knights Variation.} Bc5 {[%cal Bb4c5,Bc5b6,Bb6d4][%mdl 32]} 7. b4 Bb6 8. Na4 Bd4 $1 {The main line 8...Bd4 scores better than 8...Bg4.} 9. Rb1 Bg4 10. Be2 {[%cal Bf1e2,Be2f3,Bf3g2,Bg2b7][%mdl 32]} Bxf3 11. Bxf3 Qe7 12. Be3 {[#]} Nd8 $146 ({Predecessor:} 12... O-O 13. O-O Bxe3 14. fxe3 Nd8 15. Rb2 Ne6 16. Nc3 c6 17. Rbf2 Rae8 18. Be2 a5 19. b5 Nc5 20. h3 Qc7 21. Qb1 Re6 22. Bd1 h6 23. Re2 {½-½ (23) Lumley,B (2419)-Asquith,J (2393) ICCF email 2020}) 13. Bxd4 exd4 14. O-O O-O 15. g3 Nd7 16. Bg2 g5 {[%cal Bg7g5,Bg5g4][%mdl 32]} 17. c5 Ne6 18. e5 {And now cxd6 would win.} Nxe5 19. Bxb7 Rab8 20. Bg2 g4 21. Re1 f5 {[%cal Bf7f5,Bf5f4][%mdl 32]} 22. cxd6 cxd6 23. Qb3 {[%cal Oa4c5] [#] Black must now prevent Nc5!} Kh8 24. Qd5 f4 (24... Ng5 $5 {[%cal Re5f3]}) 25. Nc5 $1 {The position is equal.} Ng5 {[#] Hoping for ...fxg3. Pair of Knights!} 26. Qxd4 $1 Qf6 27. Kh1 fxg3 28. fxg3 Ngf3 29. Bxf3 Qxf3+ 30. Kg1 {aiming for Nd7.} Qf6 31. Kh1 Qf3+ 32. Kg1 {Nd7 is the strong threat.} Qf6 {( -> ...Nf3+)} 33. Kh1 Qf3+ {Weighted Error Value: White=0.04 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.3"]
[White "Esipenko, Andrey"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2714"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,45,54,37,44,0,18,7,178,178,173,158,302,292,296,308,286,281,288,284,260,245,255,241,272,246,537,524,624,619,625,628,29988,29989,29989,29990]} 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bg5 Bg7 7. Qd2 h6 {7...0-0 is vanishing. C41: Philidor Defence.} 8. Bh4 ({Reject} 8. Bb5+ c6 9. Bf4 (9. Bxf6 Qxf6 10. O-O-O Qxd4 $17) 9... cxb5 $17) (8. Bf4 $14) 8... O-O {[%cal Of6e4]} (8... Nxe4 $5 9. Bxd8 Nxd2 10. Bxc7 Bxd4 11. Kxd2 Nc6 12. Bxd6 Bxf2 $11) 9. O-O-O {[#]} Nc6 $146 {A mistake that costs the game.} (9... Re8 $11 {and Black is okay.}) ({Predecessor:} 9... Re8 10. f3 Nxe4 11. Nxe4 Qxh4 12. Kb1 d5 13. g3 Qd8 14. Nf2 c6 15. h4 Nd7 {1-0 (25) Janaszak,D (2328)-Pein,J (2255) Chess.com INT 2021}) 10. Nxc6 $18 bxc6 11. e5 $1 g5 (11... Ne4 $16 {was worth a try.} 12. Bxd8 Nxd2) 12. exf6 Qxf6 13. Bg3 Rb8 14. Bc4 Be6 15. Bb3 c5 16. f4 {[%cal Bf2f4,Bf4g5][%mdl 32]} c4 {[#]} 17. fxg5 $1 Qf5 (17... Qxg5 18. Qxg5) 18. gxh6 Bh8 {[#]} (18... Bxc3 {was called for.} 19. Qxc3 Qg5+ 20. Kb1 cxb3) 19. Rhf1 $1 {[%cal Bh1f1,Bf1f4,Bf4h4][%mdl 32]} Qa5 (19... Qg6 20. Ba4) 20. h7+ Kxh7 {[#]} 21. Rf4 $1 {aiming for Rh4+.} cxb3 (21... Bg7 22. Bxc4) 22. Rh4+ Kg8 23. Qh6 {Weighted Error Value: White=0.06 (flawless) /Black=1.19} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.4"]
[White "Nepomniachtchi, Ian"]
[Black "Aronian, Levon"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2773"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,82,24,24,29,29,16,24,0,0,0,0,-3,0,0,0,0,0,0,28,0,0,0,25,-10,-4,-13,-11,-22,-25,-21,-23,-27,-28,-59,-53,-58,-52,-149,-151,-257,-297,-285,-192,-200,-191,-179,-122,-121,0,-193,0,-107,-96,-173,-117,-798,-812,-806,-783,-745,-715,-29997,-29998]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O O-O 6. h3 h6 7. Re1 Re8 8. Nbd2 d6 9. c3 Be6 10. b4 Bb6 11. a4 a6 12. Bxe6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Rxe6 13. Nc4 d5 14. Nxb6 {White has an edge.} (14. exd5 {looks sharper.} Qxd5 15. Be3 Bxe3 16. Nxe3 Qd8 17. Qc2) 14... cxb6 {[#]} 15. Qb3 $146 ({Predecessor:} 15. exd5 Qxd5 16. Be3 Rae8 17. b5 axb5 18. axb5 Qxb5 19. Rb1 Qd5 20. Rxb6 Rd8 21. c4 Qxd3 22. Qxd3 Rxd3 23. Rxb7 {½-½ (32) Van Foreest,L (2500)-Sokolov,I (2590) Groningen 2018}) 15... dxe4 16. dxe4 b5 17. axb5 axb5 18. Rxa8 Qxa8 19. Qc2 Qa4 20. Qe2 Rd6 21. Nh4 Ne7 (21... Qb3 {is interesting.} 22. Nf5 Rd8 23. Qe3 Ne8 24. Kh2 Qc4) 22. Nf5 Nxf5 23. exf5 Rd5 24. Be3 Qb3 25. Rc1 $1 Qc4 26. Qf3 Kh7 27. g4 Ne4 {[%cal Bf6e4,Be4d2,Bd2f3][%mdl 32]} 28. h4 Nd2 29. Qg3 (29. Bxd2 $15 Rxd2 30. Re1) 29... Qe4 $17 {Black is much more active.} 30. Kh2 (30. Bxd2 $17 Rxd2 31. Qg2) 30... Nf3+ $19 31. Kh3 Rd3 32. Qg2 f6 33. Ra1 Qc6 ({Not} 33... Rxc3 34. Kg3 Nd2 35. Qxe4 Nxe4+ 36. Kf3 Nd2+ 37. Ke2 $15) (33... h5 $19 34. Rc1 Kg8) 34. Rc1 $17 Qe4 (34... Kg8 $17 35. Kg3 e4) 35. Ra1 $1 $19 Qc6 $40 {[%mdl 128] Black is up to no good.} ({And not} 35... Rxc3 36. Kg3 Nd2 37. Qxe4 Nxe4+ 38. Kf3 Nd2+ 39. Ke2 $11) (35... h5 $19 36. Rc1 Kg8) 36. Rc1 $17 Qd5 37. Qh1 (37. g5 $17 fxg5 38. hxg5 Nxg5+ 39. Kh2) 37... e4 (37... Qe4 $19 38. Kg3 Rxe3 39. fxe3 {[#]} Qxe3 $1 40. Qxf3 Qxc1) 38. Kg2 $2 {[%mdl 8192] [#] This move loses the game for White.} (38. Qg2 $17) 38... Rxe3 $1 $19 {[%mdl 512]} 39. fxe3 Qd2+ 40. Kg3 Qxe3 {( -> ...Nd4+)} 41. Qd1 Ne1+ {Weighted Error Value: White=0.56/Black=0.22 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.5"]
[White "Kosteniuk, Alexandra"]
[Black "Duda, Jan-Krzysztof"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2516"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,90,5,13,10,8,9,18,23,14,14,10,16,16,-8,-11,-14,0,-18,22,-2,19,21,32,-25,14,14,28,0,8,8,3,0,10,0,0,0,33,16,29,10,39,0,20,0,0,-20,0,0,0,8,12,-12,-16,-16,0,-20,-22,-35,-19,-98,-77,-84,-67,-86,-87,-231,-161,-162,-141,-290,-157,-208,-160,-208,-205,-503,-500,-462,-488,-853,-820,-827,-816]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 a6 5. c4 Ngf6 6. Nc3 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} g6 7. O-O Bg7 8. d3 {The position is equal.} O-O 9. h3 Rb8 10. Rb1 Ne8 {[%cal Bf6e8,Be8c7,Bc7e6,Be6d4,Bd4f3][%mdl 32]} 11. Bg5 {[#]} Nc7 $146 ({Predecessor:} 11... h6 12. Be3 Nc7 13. Qd2 Kh7 14. b4 b5 15. cxb5 axb5 16. Bc2 e5 17. Nh2 Ne6 18. bxc5 {0-1 (43) Liang,A (2575)-Lobanov,S (2535) Manavgat 2018}) 12. Qd2 b5 13. Bc2 Nb6 14. b3 Qd7 15. Bh6 e5 16. Nh2 (16. Bxg7 $14 Kxg7 17. b4) 16... Ne6 17. Bxg7 Kxg7 18. Ne2 {[%cal Oa2a4]} (18. Ng4 f5 19. Qh6+ (19. exf5 gxf5 20. Qh6+ Kh8 $17) 19... Kh8 $17) 18... Qe7 19. f4 ({Don't play} 19. Ng4 f5 20. Qh6+ (20. exf5 gxf5 21. Nh2 Kh8 $17) 20... Kh8 $17) 19... exf4 20. Nxf4 Nd4 21. Nf3 Nxf3+ 22. Rxf3 Qe5 23. Ne2 Bb7 24. Rf4 Nd7 25. Rbf1 Qe7 26. Ng3 Ne5 27. Qf2 Bc8 28. Ne2 Be6 29. Qg3 h6 30. Nc3 Qg5 31. Qe3 Rb7 32. Kh2 Nc6 33. Ne2 Qe5 34. Ng3 (34. Kg1 $11) 34... Nd4 35. Bd1 a5 {[%cal Oa5a4]} 36. Kh1 ({Don't go for} 36. Rh4 $2 g5 37. Rh5 f5 $19) 36... a4 37. h4 (37. Ne2 $17) 37... axb3 38. axb3 Ra8 39. Qf2 {Loses the game.} (39. Ne2 $17) 39... Ra1 {Active counter play!} (39... bxc4 $19 40. dxc4 Ra1) 40. cxb5 $17 Nxb5 41. Ne2 (41. Nf5+ $17 gxf5 42. exf5) 41... Rb1 $19 42. Bc2 $2 {[#]} (42. Qg1 {is a better defense.}) 42... Rxf1+ {Black is clearly winning.} 43. Qxf1 Ra7 {And now ...Ra1 would win.} 44. Qf2 (44. d4 $142 Nxd4 45. Nxd4 Qxd4 46. Qd3) 44... Ra2 45. Bd1 Nc3 {Weighted Error Value: White=0.37/Black=0.14 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.6"]
[White "Keymer, Vincent"]
[Black "Ding, Liren"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2664"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "154"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,154,0,14,0,0,0,0,-4,0,4,14,7,16,25,8,0,2,-15,-17,-35,0,0,16,17,14,9,16,12,13,12,33,33,26,30,42,40,46,40,48,41,38,16,21,21,16,15,19,15,15,62,89,-47,-13,0,-2,-12,-10,-10,0,0,0,0,0,0,28,28,30,0,0,-179,42,42,42,42,42,42,42,43,49,0,0,0,0,0,0,0,272,264,264,264,254,0,221,0,256,259,248,0,0,0,0,-8,0,0,0,-8,0,0,0,-8,-8,-8,-8,-100,-8,-745,-715,-656,-649,-611,-591,-1314,-1306,-1275,-1257,-1161,-299,-272,0,-766,0,-231,-46,-1182,-1125,-29982,-1166,-1162,-1063,-29966,-29972,-29982,-29983,-29985,-29986,-29988,-29978]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O e6 5. d3 Be7 6. e4 {A08: King's Indian Attack.} O-O 7. a4 Nc6 8. Qe2 {The position is equal.} dxe4 9. dxe4 e5 10. c3 {Inhibits Nd4.} h6 11. Na3 {[%cal Bb1a3,Ba3c4,Bc4e3,Be3f5][%mdl 32] [#]} Qc7 $146 ({Predecessor:} 11... a6 12. Nc4 Qc7 13. Ne3 Be6 14. Nh4 Rfe8 15. Nd5 Bxd5 16. exd5 Na5 17. Be3 Rad8 {1-0 (35) Rendle,T (2381)-Flear,C (2156) Hastings 2013}) 12. Nc4 b6 13. Ne3 Na5 {[%cal Bc6a5,Ba5b3,Bb3c1][%mdl 32]} (13... Nxe4 $2 14. Nd5 Qd6 15. Qxe4 $18) 14. Nf5 {[%cal Ob2b4]} Nb3 (14... Re8 {feels hotter.} 15. Be3 Be6 16. Nd2 Rad8 17. g4 Nh7) 15. Rb1 Nxc1 16. Rbxc1 Re8 17. Nd2 Bf8 18. Rfd1 Bb7 19. c4 Bc6 20. b3 Rad8 {[%cal Od8d4]} 21. Ne3 Rd4 {[%cal Rf6e4]} 22. Nd5 Nxd5 23. cxd5 Bd7 24. h4 Rb8 25. Nc4 a6 {[%cal Ba7a6,Ba6b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 26. Kh2 b5 27. axb5 axb5 28. Ne3 c4 29. bxc4 b4 30. c5 (30. Rxd4 $1 $16 exd4 31. Nd1) 30... Bxc5 31. Rxd4 $1 exd4 32. Nc4 b3 {[%cal Oc5a3] Black wants to play ...Ba3!} 33. e5 Bf5 34. d6 Qd7 35. Nb2 {Prevents d3.} d3 36. Nxd3 Bxd3 37. Qxd3 b2 38. Rb1 Bxf2 39. Qd2 $2 (39. Bd5 $11 Qg4 40. Ba2 (40. Rf1 $2 b1=Q $19)) 39... Bxg3+ $2 40. Kxg3 $14 Qf5 {[%csl LRb1,LRe5]} 41. Qe1 Rb3+ $1 (41... Rb5 $2 42. Qe4 Qxe4 43. Bxe4 $18) 42. Kh2 {aiming for Qe4.} Qf4+ 43. Kh1 Re3 $1 44. Qf1 (44. Qd1 $14 Rc3 45. d7 (45. Rxb2 $2 Rc1 $19) 45... Qxh4+ 46. Kg1) 44... Qxh4+ $11 45. Kg1 Rxe5 46. Qf2 (46. Rxb2 $2 Re1 47. Rd2 (47. Rb8+ $2 Kh7 $19) 47... Rxf1+ $19) 46... Qd8 47. Qd4 Re6 {[%mdl 8192]} (47... Re2 $11 {and Black has nothing to worry.} 48. d7 (48. Rxb2 Rxb2 49. Qxb2 Qxd6 $11) 48... Rc2) 48. d7 $18 (48. Rxb2 Qxd6 49. Qxd6 Rxd6 $11) 48... Rb6 49. Bh3 (49. Rxb2 Rxb2 50. Qxb2 Qxd7 $11) 49... Rg6+ 50. Bg2 Rb6 51. Bh3 (51. Rxb2 Rxb2 52. Qxb2 Qxd7 $11) 51... Rg6+ $1 52. Kf2 Rf6+ 53. Ke3 $2 ({White should play} 53. Ke2 $18 Qe7+ 54. Qe3) 53... Qe7+ $11 54. Qe4 Qc5+ 55. Kd3 $132 {[%mdl 2048] White is fighting back} Qb5+ 56. Ke3 Qc5+ 57. Kd3 Qb5+ 58. Ke3 Qb6+ 59. Kd3 Rd6+ 60. Ke2 {Threatens to win with Qe8+.} Qb5+ 61. Kf2 (61. Ke1 $1 $11 g6 62. Qe3 (62. Qe8+ $2 Kg7 $19)) 61... Qc5+ (61... Rd2+ $17 62. Kg1 (62. Ke1 $2 Qa5 $19) 62... Qc5+ 63. Kh1 Qc1+ 64. Qe1 Qc6+ 65. Kg1 Qc5+ 66. Kh1 Qd5+ 67. Kg1 Qd4+ 68. Kh1 Qd3) 62. Kg3 $2 {[%mdl 8192]} (62. Ke2 $11 Qb5+ 63. Ke1 (63. Kf2 $2 Rd2+ 64. Kg1 Qc5+ 65. Kh1 Qc1+ 66. Qe1 Qc6+ 67. Kg1 Qc5+ 68. Kf1 Qb5+ 69. Kg1 Qg5+ 70. Kh1 Qd5+ 71. Kg1 Qd4+ 72. Kh1 Qd3 $19)) 62... Qc3+ $19 63. Qf3 Qe5+ 64. Kg2 Rd2+ 65. Kg1 Qc5+ 66. Kh1 Qc1+ 67. Qf1 Qc6+ $2 (67... Qc7 {[%csl Gd2][%cal Rc7h2]} 68. Bg2 Qxd7) 68. Qg2 {[#]} Qc1+ $2 (68... Qc3 $1 $19 {[%cal Rc3c1]} 69. Rg1 (69. Qa8+ $2 Kh7 $19) 69... g5) 69. Qg1 $2 {[%mdl 8192]} (69. Qf1 $11 Qc7 70. Bg2 Qxd7 71. Qf4) 69... Qc6+ $2 (69... Qc7 {[%cal Of7f5] White must now prevent ...f5!} 70. Re1 Qb7+ 71. Bg2 Qxd7) 70. Qg2 $1 {[#]} Qd6 $2 {The board is on fire.} (70... Qc3 $1 $19 {[%cal Rc3c1] And now ...Qc1+ would win.} 71. Rg1 (71. Qa8+ $2 Kh7 $19) 71... g5) 71. Qa8+ $2 {[%mdl 8192]} (71. Rxb2 $15 Rd1+ 72. Qg1 Qd5+ 73. Kh2 Qe5+ 74. Kh1 Qd5+ 75. Kh2 Qe5+ 76. Kh1 Qd5+) 71... Kh7 {[%csl Gd2][%cal Rd6h2]} 72. Bg2 Qxd7 (72... Rd1+ $142 73. Bf1 Rxb1 74. Qf3 Rd1 75. Qf5+ Kg8 76. Qb5 b1=Q 77. d8=Q+ Qxd8 78. Qxb1 Rxb1 79. Kg2 Qd2+ 80. Kf3 Rxf1+ 81. Kg3 Qe3+ 82. Kh4 g5+ 83. Kh5 Qh3#) 73. Qe4+ g6 {( -> ...Rd1+)} 74. Kh2 Qd6+ {Black mates.} 75. Kh3 Rd4 76. Qe2 Qf4 {[%csl Gd4][%cal Rf4h4]} 77. Bf3 Rd2 {Quite a comeback for Black.  Weighted Error Value: White=0.27 (precise) /Black=0.17 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.7"]
[White "Niemann, Hans Moke"]
[Black "Hansen, Eric"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2642"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,116,24,42,31,42,31,60,7,21,-17,-14,-45,-39,-43,-35,-33,-19,-73,-74,-81,-86,-88,-103,-93,-61,-118,-86,-89,-73,-78,-73,-73,-20,-29,-5,-14,0,0,10,0,0,0,0,0,0,0,0,0,192,189,190,197,201,93,68,0,0,-57,-90,-77,84,74,83,60,148,139,214,214,207,182,168,143,143,-8,-8,-567,-543,-991,223,0,0,-387,0,0,0,0,0,0,0,0,10,10,10,-29975,-29976,-29981,-29982,-29982,-29983,-29982,-29979,-29979,-29980,-29980,-29981,-29981,-29981,-29983,-29983]} 1. c4 Nf6 2. Nf3 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 h6 6. e4 {A16: English Opening: 1...Nf6 with ...d5.} Nxc3 7. bxc3 Bg7 8. Bc4 (8. Rb1 $14) 8... c5 9. Qb3 O-O 10. Ba3 Qc7 {[#]} 11. Be2 $146 ({Predecessor:} 11. Rb1 Nc6 12. Bd5 e6 13. Bxc6 Qxc6 14. d3 b6 15. c4 Bb7 16. Bb2 f6 17. Ng1 {½-½ (61) Rapoport,V (2253)-Schreyer,A (1825) Offenbach 2005}) 11... b6 12. d4 Nc6 {[%cal Rc5d4]} 13. d5 (13. Qc2 $11 {keeps the balance.}) 13... Na5 $17 14. Qc2 e6 15. O-O exd5 16. exd5 Bf5 17. Qd2 (17. Bd3 $1 $15) 17... Rfe8 18. Rfe1 Re4 {Black is much more active.} 19. Bd3 Ra4 20. Bxf5 Nc4 (20... gxf5 $17 21. Bc1 Re4) 21. Qd3 $11 gxf5 22. Bc1 Qd7 23. Bf4 Rd8 24. g3 Nb2 25. Qd2 {[%csl LRb2,LRh6]} Nc4 26. Qc2 Ra3 27. Rad1 Bxc3 (27... Rxc3 $5 28. Qe2 b5 $11) 28. Re2 Qa4 $2 (28... Bf6 $11 {and Black has nothing to worry.} 29. Qxc4 Rc3) 29. Qxa4 $1 $18 Rxa4 30. d6 $1 {And now d7 would win.} Nb2 {[#]} 31. Rd5 (31. d7 $1 $18 {[%mdl 512] and White stays clearly on top.} Re4 32. Rxe4 fxe4 33. Bc7 $1 {[%mdl 512]} (33. Rc1 $2 Bg7 $19) 33... Rxd7 34. Rxd7 exf3 35. Bf4) 31... Re4 $16 {Prevents Re8+.} 32. Rxe4 (32. Rc2 $14 Bf6 33. Bxh6) 32... fxe4 $11 33. d7 exf3 $15 34. Bc7 {[#]} Rxd7 35. Rxd7 $17 {[%mdl 4096] Endgame KRB-KBN} Bd4 36. Bf4 Nd1 (36... Kg7 $1 $14) 37. Kf1 $16 (37. Rxa7 Nxf2 38. Ra8+ Kh7 $17) 37... a5 (37... h5 $16 {was called for.} 38. Rd5 (38. Rxa7 Nxf2 39. Ra8+ Kh7 $11) 38... Nc3 39. Rxh5 Nxa2) 38. Bxh6 $18 b5 39. Be3 Bxe3 40. Rd8+ (40. Rxd1 Bd4 $16) 40... Kg7 41. fxe3 $16 {KR-KN} (41. Rxd1 $16 Bd4 42. Rd3) 41... Nc3 $1 $11 42. Ra8 $2 {[%mdl 8192]} (42. Rc8 $1 $11 {and White is okay.} b4 43. g4 (43. Rxc5 a4 $11)) 42... a4 $19 43. Ra5 f5 {[%mdl 8192]} (43... b4 $19 {and all is fine. ...b3 is the strong threat.} 44. Rxc5 Nxa2) 44. Kf2 $2 ({White must play} 44. a3 $1 $18 {Strongly threatening Ra7+.} Kg6 45. Ra6+ Kh5 46. Rf6) 44... b4 $1 $11 45. Kxf3 $2 {[%mdl 8192]} (45. Ra7+ $1 $11 Kg6 46. Kxf3 Nxa2 47. e4 (47. Rxa4 $2 b3 $19)) 45... b3 $2 (45... Nxa2 $19 {Threatens to win with ...b3.} 46. Ra7+ (46. Rxc5 $2 b3 $19) 46... Kf8) 46. axb3 ({Wrong is} 46. Rxc5 $2 bxa2 $1 47. Rxc3 a1=Q $19) 46... axb3 {White must now prevent ...b2.} 47. Ra7+ Kf6 48. Rb7 c4 49. Rb6+ Kf7 50. h5 Kg7 51. Kf2 $2 {[%mdl 8192] [#]} (51. e4 $11 Nxe4 52. Ke3) 51... b2 $1 {[%mdl 64] Decoy. Black mates.} 52. Rxb2 Nd1+ 53. Ke2 Nxb2 54. Kd2 Nd3 55. Kc3 Ne5 56. Kd4 {[#]} Kh6 $1 57. e4 {[#]} fxe4 $1 58. g4 (58. Kxe4 Kxh5) 58... Nxg4 {Both players deserved the win here.  Weighted Error Value: White=0.62/Black=0.33} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "1.8"]
[White "Praggnanandhaa R"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2612"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,69,20,0,19,17,18,-5,-9,-2,0,8,10,10,12,2,16,-1,28,20,28,18,16,12,28,8,12,2,6,6,20,0,0,11,15,14,8,-13,-15,-20,-17,-18,-10,-18,-14,-22,-2,-4,-2,-2,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Nc3 d6 7. a3 $1 {[%mdl 4] is more profitable than 7.h3 at the moment.} Be6 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} 8. Nd5 Nd4 {[#]} 9. Ng5 $146 {[%cal Bf3g5,Bg5e4,Be4d2][%mdl 32]} ({Predecessor:} 9. Nxd4 exd4 10. Nxf6+ Bxf6 11. Bxe6 fxe6 12. Qg4 e5 13. f4 exf4 14. Bxf4 Qe7 15. Rf3 {½-½ (56) Nielsen,P (2645)-Smith,A (2506) Sweden 2017}) 9... Bxd5 10. exd5 Nd7 11. Ne4 f5 12. Nd2 {[#] Hoping for c3.} f4 {[%cal Of4f3]} 13. c3 Nf5 14. Re1 Kh8 15. Nf3 (15. Bb3 {looks sharper.} a5 16. Nf3 Nh4 17. d4 g6 18. Bd2) 15... Nh4 16. d4 Nxf3+ 17. Qxf3 Bf6 18. Bd3 {[#] Black must now prevent Qh3.} g6 {The position is equal.} 19. Re4 Bg7 20. Bd2 Qg5 21. Rae1 Nf6 {[%csl LRd5,LRe4]} 22. R4e2 {[%cal Rd4e5]} exd4 23. cxd4 Qxd5 24. Qxd5 ({Don't play} 24. Bxf4 Qxf3 25. gxf3 Nd5 $15) 24... Nxd5 25. Be4 c6 26. Bxd5 cxd5 27. Re7 Bxd4 28. Rxb7 Rab8 (28... Be5 {is more complex.} 29. b4 Kg8 30. Rc7 Rf7 31. Rc6 f3) 29. Rxb8 Rxb8 $11 {[%mdl 4096] Endgame KRB-KRB} 30. b4 Be5 31. Rc1 {Inhibits Rc8.} Bb2 32. Rb1 Be5 (32... Bxa3 $2 33. Rb3 $18) 33. Rc1 {To avoid Rc8} Bb2 34. Rb1 Be5 (34... Bxa3 $2 35. Rb3 $18) 35. Rc1 {Inhibits Rc8. An interesting draw.  Weighted Error Value: White=0.05 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.1"]
[White "Artemiev, Vladislav"]
[Black "Le, Quang Liem"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2700"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,89,23,28,0,0,0,0,0,0,0,0,0,0,0,0,0,102,101,106,107,106,106,102,104,104,104,104,104,107,105,105,105,187,179,174,181,225,225,242,238,249,117,116,123,125,114,106,122,109,124,116,92,183,146,185,185,333,337,343,337,374,357,1051,288,297,0,1039,1047,1658,1458,1338,865]} 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bg4 5. Ne5 Be6 {[%cal Bg4e6,Be6d5,Bd5c6][%mdl 32]} 6. cxd5 Bxd5 7. Nf3 c5 8. Nc3 Bc6 9. O-O e6 10. d4 Nbd7 11. e4 $5 {[%mdl 4] Leaves trodden paths. E02: Open Catalan: 5 Qa4+.} Nxe4 (11... Bxe4 $2 12. Nxe4 Nxe4 13. d5 $18) 12. Nxe4 Bxe4 13. Re1 {The position is equal.} Bd5 14. dxc5 {Qxd5 is the strong threat.} Be7 15. b4 {[%cal Oc1g5]} O-O 16. Bb2 a5 17. a3 {[%cal Ba2a3,Ba3b4,Bb4b5][%mdl 32]} (17. Qd4 Bf6 18. Qd2 axb4 19. Qxb4 Bxb2 20. Qxb2 Nxc5 $17) 17... b6 (17... axb4 $11 {keeps the balance.} 18. axb4 b6) 18. Nd4 $1 $16 (18. Qd4 Bf6 19. Qd2 Bxb2 20. Qxb2 axb4 21. axb4 bxc5 22. bxc5 Nxc5 23. Rxa8 Qxa8 $17) 18... Bxg2 (18... bxc5 $2 19. Bxd5 (19. Nc6 Bxc6 20. Bxc6 Ra7 $14) 19... cxd4 20. Bxa8 (20. Qxd4 $2 Bf6 $19) 20... Qxa8 21. Bxd4 $18 (21. Qxd4 Bf6 $18)) 19. Kxg2 {[#]} axb4 $146 ({Predecessor:} 19... bxc5 20. Nc6 Qe8 21. b5 Nf6 22. Rc1 Rc8 23. Qf3 Rxc6 24. bxc6 Nd5 25. Rcd1 Qd8 26. Qg4 g6 27. Rxe6 Qc8 28. Re4 Qxc6 29. Qf3 Bd8 {1-0 (29) Czebe,A (2465)-Laza,S (2166) Budapest 2018}) 20. Nc6 Qe8 21. axb4 Rxa1 22. Qxa1 Bf6 23. Bxf6 Nxf6 24. b5 bxc5 25. Qa7 {White is much more active.} Nd5 (25... Qd7 $16) 26. Ra1 $1 $18 ({Not} 26. Qxc5 Qa8 $16) 26... f6 27. Qxc5 Qh5 (27... Rf7 $142 28. b6 Rb7) 28. Kg1 {Threatens to win with b6.} Qe2 29. Nd4 Qb2 30. Re1 (30. Rd1 $1 $18 {is the precise move to win.} Qb4 31. Qxb4 (31. Nxe6 Qxc5 32. Nxc5 Nc3 $16) 31... Nxb4 32. Nxe6) 30... Qc3 $16 31. Qxc3 Nxc3 32. Rxe6 {[%mdl 4096] Endgame Strongly threatening b6. KRN-KRN} Rb8 {[#]} 33. Re3 $1 ({Much weaker is} 33. b6 Nd5 $11) 33... Nd5 34. Ra3 Rb7 35. Kf1 Nc7 (35... Kf7 $16) 36. Rb3 Kf7 37. Ke2 g6 {[#]} (37... Nd5 {was necessary.} 38. Kd3 Ke7 39. Nc6+ Kd6) 38. Kd3 $1 $18 Ke7 39. Kc4 Kd6 40. Rd3 {aiming for Nc6+.} Ke5 $2 (40... Na8 41. Nb3+ Kc7) 41. Re3+ $2 (41. Kc5 {[%cal Rd3e3]} Ne6+ 42. Nxe6 Kxe6 43. Kc6) 41... Kd6 42. Rd3 $2 (42. f4) 42... Ke5 $1 43. Kc5 {[%cal Rd3e3] White is clearly winning.} Ne6+ 44. Nxe6 Kxe6 45. b6 {Weighted Error Value: White=0.39/Black=0.21 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.2"]
[White "Hansen, Eric"]
[Black "Praggnanandhaa R"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2606"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,93,35,39,0,0,-1,0,0,0,0,0,0,0,0,0,-27,-23,-64,-64,-67,-65,-61,-70,-86,-39,-55,88,92,81,50,16,2,248,255,241,-30,257,260,303,303,272,205,1140,1134,1099,1137,1092,1166,1127,1133,1030,1106,1034,999,1166,1168,1131,1075,1062,1056,979,0,497,0,935,672,5189,1282,1092,1006,12823,939,924,860,11014,6542,6070,5700]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. a4 Rb8 8. c3 d6 9. d4 Bb6 10. a5 {C78: Ruy Lopez: Archangelsk and Möller Defences.} Ba7 (10... Nxa5 11. Rxa5 Bxa5 12. dxe5 $14) (10... Bxa5 $2 11. dxe5 (11. d5 Ne7 $18) 11... dxe5 12. Qxd8+ Kxd8 13. Bd5 (13. Bxf7 Bb6 $16) 13... Nxd5 14. exd5 $18) 11. h3 Bb7 12. Re1 {The position is equal.} O-O 13. Be3 exd4 (13... Nxe4 14. d5 $16) 14. cxd4 Nb4 (14... Nxe4 $2 15. d5 $18) 15. Nc3 Bxe4 (15... Nxe4 16. Nxe4 Bxe4 17. Bd2 Bxf3 18. Qxf3 $16) 16. Nxe4 Nxe4 {[#]} 17. Bf4 $146 (17. Re2 $11 {was preferrable.}) ({Predecessor:} 17. d5 Bc5 18. Bd4 Re8 19. Re3 Qd7 20. Qe1 Nf6 21. Qd2 Rxe3 22. Bxe3 Ne4 23. Qd1 Bxe3 24. fxe3 {0-1 (33) Kevlishvili,R (2451)-Firouzja,A (2669) Reykjavik 2019}) 17... d5 $1 $15 18. Rc1 Rc8 19. Ne5 {[%cal Oe1e4]} c5 {Strongly threatening ...c4.} (19... Qh4 20. Be3 $11) 20. dxc5 Nxc5 (20... Bxc5 $17 21. Rxe4 dxe4 22. Qxd8 Rfxd8 23. Nxf7 Bxf2+ $1 24. Kxf2 Nd3+ 25. Ke3 Nxc1) 21. Rc3 {[%cal Of4h6]} Qh4 {Prevents Bh6.} (21... Rc7 $15 {keeps the upper hand.}) 22. Bg3 $16 {White is more active. A strong pair of Bishops.} Qg5 23. h4 Qd8 24. Qg4 Nxb3 $2 {[#]} (24... f6 $1 $11) 25. Nxf7 $1 $18 {[%mdl 512]} h5 {[#]} (25... Rxf7 26. Rxc8 Qf8 27. Rxf8+ Rxf8 28. Re7 Bd4 29. Qe6+ Kh8 30. Re8) 26. Qh3 $2 {[#] Chess con chili.} ({Much less strong is} 26. Nxd8 hxg4 27. Rxc8 Nd3) ({Worse is} 26. Qxb4 Rxc3 $1 27. Nxd8 Rxg3 $11) ({White should play} 26. Rxc8 $1 $18 hxg4 27. Rxd8 (27. Nxd8 Nxa5 28. Re7 Bd4 $18) 27... Rxd8 28. Nxd8) 26... Rxc3 $1 {[%mdl 8192]} 27. Nxd8 {White threatens Qe6+ and mate.} Bxf2+ 28. Kh1 $1 {And now Qe6+ would win.} Rxg3 29. Qe6+ $40 {[%mdl 128] White has strong attack.} Kh8 $2 {[#]} (29... Kh7 30. Re5 Be3 $1) 30. Re5 $1 {[%cal Re5h5]} g6 31. Nf7+ Kg7 32. Ng5 Rxg5 33. Rxg5 Rf6 34. Qe7+ Rf7 35. Qxb4 Nd4 36. Qd6 Rf6 37. Qe7+ Rf7 38. Qe5+ Rf6 39. Qe7+ Rf7 40. Qd6 (40. Qe8 $142) 40... Rf6 41. Qd7+ {White is clearly winning.} Kh6 42. Qd8 (42. Qe7 $142 Re6 43. Qf8+ Kh7 44. Rxd5 Re1+ 45. Kh2 Bg1+ 46. Kh3 Re3+ 47. g3) 42... Kg7 43. Rxd5 {Qe7+ would kill now.} Bxh4 44. Qd7+ (44. Rd7+ $142 Kh6 45. Qh8+ Kg5 46. Rxd4) 44... Rf7 45. Rxd4 {[%cal Od7f7] Hoping for Qxf7+!} Rxd7 46. Rxd7+ Kh6 47. Rd6 {Weighted Error Value: White=0.64/Black=0.48} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.3"]
[White "Ding, Liren"]
[Black "Niemann, Hans Moke"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2799"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "148"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,148,6,9,-12,0,0,0,0,0,0,16,0,52,25,43,23,65,31,35,36,24,23,30,26,33,32,35,20,12,4,88,0,0,0,0,0,16,18,15,23,19,20,17,18,13,15,16,16,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bb4 5. d3 {[%cal Bd2d3,Bd3d4][%mdl 32]} d6 6. h3 {A28: English Opening: Four Knights Variation.} a6 {6...a5 is a critical line.} 7. Be2 h6 8. O-O {The position is equal.} O-O 9. Be3 Bc5 10. d4 {[#]} Ba7 $146 (10... exd4 $11 11. Nxd4 Qe8) ({Predecessor:} 10... exd4 11. Nxd4 Bxd4 12. Bxd4 Re8 13. Bf3 Nxd4 14. Qxd4 Nh7 15. Be2 Qh4 16. Qd3 Bd7 {1-0 (72) Osmak,I (2419)-Zawadzka,J (2426) Wroclaw 2021}) 11. Qd3 Re8 12. Rad1 {Hoping for dxe5.} Bd7 (12... exd4 $11 {feels stronger.} 13. Nxd4 Ne5) 13. Rfe1 Qe7 14. Bf1 exd4 15. Nxd4 Nxd4 (15... Nxe4 $2 16. Nxc6 Bxc6 17. Bxa7 $18) 16. Bxd4 Bxd4 17. Qxd4 Qe5 18. Qd2 Bc6 {[%cal Rf6e4]} 19. b4 a5 {[#]} (19... Nxe4 $2 20. Nxe4 Bxe4 21. f3 $18) (19... Bxe4 $2 20. f3 $18) (19... b6 $11 {keeps the balance.}) 20. a3 ({Better is} 20. b5 $1 $16 {[%cal Rb5c6]}) 20... axb4 $11 ({Much less strong is} 20... Nxe4 21. Nxe4 Bxe4 22. f3 $16) (20... Bxe4 $2 21. f3 $18) 21. axb4 Ra3 (21... Bxe4 $2 22. f3 $18) (21... Nxe4 $2 22. Nxe4 Bxe4 23. f3 $18) 22. Rc1 {[%cal Bd1c1,Bc1c3,Bc3f3][%mdl 32]} Rb3 (22... Nxe4 $2 23. Nxe4 Bxe4 24. f3 $18) (22... Bxe4 $2 23. f3 $18) 23. f4 Qh5 {[%cal Rf6e4]} 24. e5 dxe5 25. b5 Bd7 26. Qa2 Rxc3 27. Rxc3 {And now g4 would win.} exf4 28. Rxe8+ Bxe8 29. Rf3 Qe5 30. Qd2 g5 31. Qd8 Qc5+ 32. Kh2 Kg7 33. Rd3 Qf2 34. Rf3 Qc5 35. Rd3 b6 36. Qd4 Qxd4 37. Rxd4 {[%mdl 4096] Endgame KRB-KBN} Bd7 38. Be2 Kf8 39. g3 fxg3+ 40. Kxg3 Ke7 41. Bg4 Be6 42. Bxe6 Kxe6 {KR-KN} 43. Kf3 Ne8 44. Re4+ Kd7 45. Rd4+ Ke6 46. Re4+ Kd7 47. Rd4+ Nd6 48. Kg4 Ke6 49. Kh5 f6 50. Rd1 Nxc4 51. Rc1 Nd6 52. Rxc7 Nxb5 53. Rc6+ Kf5 54. Rxb6 Nc3 55. Kxh6 Ne4 56. Rb5+ Kf4 57. Kg6 Nf2 58. Rb3 Ne4 59. Ra3 f5 60. Ra5 Ng3 61. Ra4+ Ne4 62. Rb4 Kg3 63. Kxf5 $2 {[%mdl 8192] [#]} (63. Rb1 $11) 63... Nf2 {Mate.} 64. Rb3+ Kh4 65. Rb4+ Kxh3 66. Kxg5 Kg3 67. Rb3+ Kg2 68. Kf4 Nh3+ 69. Ke3 Kg3 70. Rb8 Kg4 71. Rb4+ Kf5 72. Rb5+ Kf6 73. Rc5 Ng5 74. Rxg5 Kxg5 {[%mdl 32768] Weighted Error Value: White=0.06 (flawless) /Black=0.08 (flawless) . An unexpected result.} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.4"]
[White "Duda, Jan-Krzysztof"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "2760"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,72,4,8,-7,5,0,19,15,17,8,14,0,3,0,15,0,2,-6,0,-16,-3,-49,0,-27,-18,-107,-94,-91,-103,-82,-85,-122,-121,-122,-108,-122,-122,-133,-129,-136,-134,-135,-94,-95,-101,-318,-316,-460,-464,-441,-425,-510,-518,-485,-497,-631,-642,-1275,-1258,-1272,-1256,-29991,-1933,-1608,-1390]} 1. Nf3 d5 2. g3 Bg4 3. Bg2 c6 4. c4 e6 5. Qb3 Qb6 6. Qc2 {A11: English Opening: 1...c6.} Nd7 7. b3 a5 8. Nc3 {The position is equal.} Ngf6 9. O-O Be7 {[#]} 10. Bb2 $146 ({Predecessor:} 10. d3 O-O 11. h3 Bxf3 12. Bxf3 d4 13. Na4 Qa7 14. e3 e5 15. Bg2 Rac8 16. exd4 exd4 {½-½ (43) Eljanov,P (2703)-Rublevsky,S (2688) Loo 2013}) 10... O-O 11. d3 Rfd8 12. h3 Bh5 13. g4 Bg6 14. Nh4 Nf8 15. Rad1 (15. e3 $11 {might be stronger.}) 15... h5 (15... d4 $5 {[%cal Rd4c3]} 16. Na4 Qc7 $11) 16. Na4 Qa7 17. Bf3 (17. g5 $11 N6d7 18. Qc3 (18. Nxg6 Nxg6 19. e3 Bxg5 $11)) 17... hxg4 $17 18. hxg4 b5 19. Nc3 bxc4 {And now ...d4 would win.} 20. bxc4 Bh7 {[%cal Of6g4]} 21. cxd5 cxd5 22. g5 {Black must now prevent Nb5.} Ne8 23. Qd2 a4 24. Ba1 Qa5 $1 25. Qf4 Rac8 (25... f6 $142 26. g6 Nxg6 27. Nxg6 Bxg6) 26. Bh5 Nd6 27. Qd4 {White does not recover from this.} (27. Qxa4 $17 {might work better.} Qxa4 28. Nxa4) 27... Bxg5 $19 {[%cal Be7g5,Bg5f4,Bf4c1][%mdl 32] Hoping for ...Bf6.} 28. Ne4 {[#]} ({But not} 28. Nxd5 Ne8 29. Bf3 exd5 $19) (28. Nb5 {was worth a try.} Bf6 29. Qg4) 28... e5 $1 29. Qxe5 {[%csl Ga1][%cal Re5g7] [#]} f6 $1 30. Qxd6 (30. Nxf6+ Bxf6) 30... Rxd6 31. Nxd6 Rc7 32. Nf3 Bf4 33. Ne8 d4 34. Nxc7 Qxh5 35. Rc1 Qg6+ (35... Qg4+ $142 36. Kh1 {[#]} Bxd3 $1 {[%mdl 512]} 37. Rc3 dxc3 38. Ne6 Nxe6 39. Rb1 c2 $1 40. Re1 Bxe2 $1 {[%mdl 512]} 41. Ng1 Qh5+ 42. Nh3 Qxh3+ 43. Kg1 Qh2#) 36. Kh1 Bxc1 {Weighted Error Value: White=0.68/Black=0.24 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.5"]
[White "Aronian, Levon"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2772"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,75,19,22,4,24,0,6,19,6,0,0,0,0,3,27,-12,0,0,25,18,28,12,30,12,30,22,19,19,74,85,106,66,163,158,165,108,152,160,152,157,234,214,236,133,281,183,177,181,311,310,302,302,437,436,1713,1666,8534,6701,29981,29982,29982,29982,29994,29995]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. h3 Qc7 7. Nf3 g6 8. O-O {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Bf5 9. Bb5 Bg7 10. Re1 {The position is equal.} O-O 11. Nbd2 a6 12. Bxc6 bxc6 13. Nb3 {[#]} Rfe8 $146 ({Predecessor:} 13... Ne4 14. Nfd2 e5 15. Nxe4 dxe4 16. Be3 Rfd8 17. Qe2 a5 18. Rad1 a4 19. Nc5 h5 20. dxe5 Bxe5 {0-1 (50) Ismayil,M (1997)-Mitrabha,G (2467) Chess.com INT 2021}) 14. Be3 Ne4 15. Nfd2 e5 16. Nxe4 dxe4 17. Qe2 a5 18. Rad1 exd4 19. Bxd4 Bf8 20. Nc5 Bxc5 (20... Qf4 $11 {keeps the balance.}) 21. Bxc5 $16 Qf4 22. Qc4 Rad8 (22... Be6 $14 23. Qxe4 (23. Rxe4 Bxc4 24. Rxf4 Bxa2 $14) 23... Qxe4 24. Rxe4 Bxa2 25. Rxe8+ Rxe8) 23. Be3 $18 Qc7 24. Rd4 (24. Rxd8 $1 $18 Rxd8 25. g4) 24... Be6 {[#]} ({Black should try} 24... Rxd4 25. Qxd4 (25. Bxd4 Rb8 $14) 25... Rd8) 25. Rxd8 $1 $16 Rxd8 26. Qxe4 $40 {[%mdl 128] White has strong attack.} Bxa2 (26... Re8 $16 {was worth a try.} 27. Bh6 f6) 27. Bd4 {[%cal Oe4e8] Qe8+! would kill now.} Rf8 {Inhibits Qe8.} 28. Bc5 {To avoid Qd6} (28. Qh4 $1 $18 {[%cal Rh4f6] Threatening mate with Qf6.} Qd6 29. Re7 (29. Qh6 f6 $16)) 28... Rb8 {Black cannot hold the game after this.} (28... Rc8 $16 {was necessary.} 29. Qf3 Qd7) 29. Qh4 Qd8 {To avoid Qf6} 30. Qh6 Be6 (30... f6 $142 31. Be7 (31. Re7 Bf7 $16) 31... Qe8) 31. Bd4 $18 {[%csl Gd4][%cal Rh6g7]} Qf8 {[#] Prevents Qg7+.} 32. Qf4 {Intending Qf6 and mate.} h6 {[#]} (32... h5 {might work better.} 33. Bc5 Qe8) 33. Bc5 $1 {[%cal Bd4c5,Bc5e7,Be7f6][%mdl 32]} Qd8 (33... Qxc5 $142 34. Qxb8+ Qf8 35. Qxf8+ Kxf8) 34. Qxh6 {Threatens to win with Bd4.} Bf5 35. g4 Bc2 36. Be7 {White mates.} Qe8 37. Re3 Qd7 38. Bf6 {Weighted Error Value: White=0.14 (very precise) /Black=0.57} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.6"]
[White "Mamedyarov, Shakhriyar"]
[Black "Nepomniachtchi, Ian"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "2767"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "158"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,158,29,40,31,35,-15,20,34,28,24,30,28,42,27,23,27,16,4,18,18,20,22,26,23,36,30,30,29,27,0,0,0,0,0,0,0,0,0,0,-4,0,0,0,-25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,-30,-44,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-2233,-2046,-1610,-1610,-1571,-1563,-1556,-92,-29977,-29978,-29978,-29979,-29979,-29980,-29979,-29980,-29982,-29983]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} dxe4 {seems to push 7...Nc6 aside.} 8. Qxd8+ Kxd8 9. Ng5 {[%csl LRe4,LRf7] The position is equal.} Be6 10. Nxe6+ fxe6 11. Bg5 Nc6 12. O-O-O+ Ke8 13. Bb5 Rc8 14. Kb1 Bb4 15. Bxf6 gxf6 16. Nxe4 {[#]} Ke7 $1 $146 {[%mdl 8] A top novelty.} ({Predecessor:} 16... f5 17. Ng5 Ke7 18. a3 Ba5 19. f4 h6 20. Nf3 Rhd8 21. Rxd8 Nxd8 22. Rd1 Rc7 {1-0 (66) Carlsen,M (2847)-Vidit,S (2726) chess24.com INT 2021}) 17. a3 {Bxc6 is the strong threat.} f5 18. axb4 fxe4 19. Rhe1 Rhf8 20. Rd2 Rcd8 $1 21. Rxd8 Nxd8 $11 {[%mdl 4096] Endgame KRB-KRN} 22. Re2 Nf7 23. Ba4 Nd6 24. Bc2 h6 25. Kc1 Rf5 26. Kd2 Kf6 27. b3 b6 28. Ke1 Rb5 29. Bxe4 Rxb4 30. Bc2 Nb5 31. Re3 Nd4 32. Bd1 a5 33. Kd2 Nf5 34. Rh3 Rd4+ 35. Kc1 Kg7 36. Rc3 Rh4 37. h3 Rf4 38. Rf3 Rb4 39. Bc2 Nd4 40. Rg3+ Kf7 {aiming for ...Ne2+.} 41. Bd1 {To avoid Ne2+} Kf6 42. Kd2 e5 43. Rc3 e4 44. h4 Ke5 45. g4 Kf4 46. Rg3 a4 (46... Ne6 $15) 47. bxa4 Rb2+ 48. Ke1 Nf3+ 49. Bxf3 exf3 {KR-KR} 50. g5 Rb1+ 51. Kd2 {Threatens to win with g6.} hxg5 52. Rxg5 Rf1 53. Rg6 Rxf2+ 54. Ke1 Ra2 55. h5 Rxa4 56. h6 Ra1+ 57. Kf2 Ra2+ 58. Kf1 b5 (58... Rh2 $5 {[%cal Rb6b5]}) 59. Kg1 Ra1+ 60. Kf2 Rh1 61. Rb6 Rh2+ 62. Kg1 Rh5 63. Kf2 Ke4 {White must now prevent ...Rh2+.} 64. h7 Rh2+ 65. Kg1 f2+ 66. Kf1 ({But not} 66. Kxh2 f1=Q 67. h8=Q Qf2+ 68. Kh3 Qxb6 69. Qa8+ Ke5 70. Qh8+ Ke4 71. Qa8+ Kd4 72. Qa1+ Kd5 73. Qh1+ Kd6 $17) 66... Ke3 {( -> ...Rh1+)} 67. Re6+ Kd3 68. Re7 b4 {[%cal Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 69. Rd7+ Kc2 70. Rc7+ Kb2 {Strongly threatening ...b3.} 71. Rb7 $2 {[%mdl 8192]} (71. Ke2 $11 b3 72. Rb7) 71... b3 $1 $19 (71... Kc3 72. Rc7+ Kd4 73. Rb7 $17) 72. Ke2 {[#]} Kc2 $1 73. Rc7+ {[#]} Kb1 $1 74. Rb7 b2 75. Kf1 $2 {[%mdl 8192] This move loses the game for White.} (75. Rc7 $17 Rh6 76. Kxf2) 75... Kc2 {Black mates.} 76. Rc7+ Kd3 77. Rd7+ Kc4 78. Rc7+ Kd5 79. Rb7 {[#]} Rxh7 $3 {[%mdl 512] Weighted Error Value: White=0.02 (flawless) /Black=0.02 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.7"]
[White "Giri, Anish"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[ECO "C85"]
[WhiteElo "2772"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,116,13,17,0,11,-5,29,0,18,0,10,0,0,0,0,0,0,0,18,8,9,9,10,0,25,24,27,27,28,20,25,18,17,17,22,8,0,5,11,0,16,-3,14,8,12,0,37,37,37,15,50,7,7,7,7,7,7,7,7,6,6,6,6,6,6,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 {[%cal Bg8f6,Bf6d7,Bd7c5][%mdl 32]} 5. O-O Be7 6. Bxc6 dxc6 7. d3 Nd7 8. Nc3 {C85: Closed Ruy Lopez: Deferred Exchange Variation.} O-O 9. Be3 f6 10. h3 {[#] White has an edge.} (10. Nh4 {seems wilder.} g6 11. Qg4 Nc5 12. Qg3 Ne6 13. Nf5) 10... Bd6 $146 ({Predecessor:} 10... Qe8 11. Nh4 Nc5 12. g4 Ne6 13. Nf5 Nd8 14. Kh2 b6 15. Qf3 Nf7 16. Nxe7+ Qxe7 {1-0 (26) Slavin,P (1285)-De Booij,M (1120) IECC email 2015}) 11. Ne2 Nc5 12. Nd2 Ne6 13. Nc4 Be7 14. a4 a5 15. Qe1 Bb4 16. Bd2 Bxd2 17. Qxd2 b6 18. b3 Nd4 (18... Ba6 {keeps more tension.} 19. Ne3 Qd6 20. Nf5 Qc5 21. Rae1 g6) 19. Nxd4 Qxd4 20. Ne3 Be6 21. Kh1 Rfd8 {[%cal Od4e4]} 22. Rfd1 Qb4 23. Qe2 Qc3 24. Qe1 (24. g3 {is interesting.} Rf8 25. Rab1 Rad8 26. h4 Rd4 27. Ra1) 24... Qxe1+ 25. Rxe1 Rd4 26. Nd1 Kf8 27. Nc3 {[%cal Of2f4]} Ke7 28. Ne2 Rdd8 29. f4 exf4 30. Nxf4 Bf7 31. Kg1 h5 32. Kf2 (32. Re3 $14) 32... h4 $11 {The position is equal.} 33. Ke3 c5 34. Rf1 Rh8 35. Rf2 Rae8 36. Kd2 Kd6 37. Ne2 Re5 38. Nc3 Be6 39. Nd1 f5 40. exf5 Rxf5 41. Rxf5 Bxf5 {[%mdl 4096] Endgame KRB-KRN} 42. Ne3 Be6 43. Rf1 Ke5 44. Nc4+ Bxc4 45. bxc4 {KR-KR} Rh6 46. Re1+ Kf4 {aiming for ...Kg3.} 47. Re4+ Kf5 48. Ke3 g5 49. c3 Re6 50. Rxe6 Kxe6 {KP-KP} 51. Ke4 {[#] Hoping for d4.} Kd6 52. d4 {d5 is the strong threat.} (52. Kf5 c6 53. Ke4 (53. Kxg5 $2 b5 $19) 53... b5 54. axb5 a4 $19) 52... Ke6 53. Ke3 {Threatens to win with Ke4.} Kf5 54. Kf3 Kf6 55. Ke4 Ke6 56. Ke3 {[#] And now Ke4 would win.} Kf5 57. Kf3 Kf6 58. Ke4 Ke6 {Weighted Error Value: White=0.05 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "2.8"]
[White "Carlsen, Magnus"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2865"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,89,7,6,0,14,0,30,18,18,18,4,0,53,33,37,40,63,0,37,-30,-13,-125,-119,-123,-125,-123,-144,-149,-137,-135,-146,-136,-138,-214,-216,-229,-229,-215,-209,-194,-228,-226,-226,-226,-210,-248,-248,-252,-143,-142,-144,-134,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. g3 Nf6 2. Bg2 d5 3. Nf3 g6 4. O-O Bg7 5. c4 dxc4 6. Na3 c5 7. Nxc4 Nc6 8. b3 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} O-O {[#]} 9. Ba3 $146 ({Predecessor:} 9. Bb2 Be6 10. Rc1 Rc8 11. d4 cxd4 12. Nxd4 Nxd4 13. Qxd4 b6 14. Na3 Qxd4 15. Bxd4 Rfd8 16. Rxc8 Bxc8 17. e3 {½-½ (47) Grischuk,A (2777)-Aronian,L (2773) Lichess.org INT 2020}) 9... Ne4 10. Rc1 {White has an edge.} Nb4 11. Nfe5 Nd6 12. Nxd6 exd6 (12... Qxd6 $11 13. d4 cxd4) 13. Bxb4 $14 cxb4 14. Nd3 Qa5 15. Rc4 (15. Nf4 $14) 15... Bf5 16. Nxb4 ({White should play} 16. Rxb4 $14 Bxd3 17. Ra4) 16... Be6 $1 $11 {A strong pair of Bishops.} 17. Nc2 (17. Qb1 $1 $11) 17... Bxc4 $17 ({Inferior is} 17... Qxa2 18. Ra4 Qb2 19. Qb1) 18. bxc4 Qxa2 19. Bd5 Rab8 20. Qb1 Qa5 21. Nb4 Qa4 22. Rc1 Rfc8 23. e3 (23. Nd3 $17 {is a better defense.}) 23... a5 $19 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 24. Nd3 b5 25. cxb5 Rxc1+ 26. Qxc1 {[%cal Ob5b6]} Qxb5 27. Qc7 Rf8 28. Qxd6 {[#]} a4 $1 29. Nb4 a3 {[%cal Og7e5]} 30. d4 Bf6 31. Ba2 $17 {[#]} Qb8 $1 32. Qc5 Kg7 ({Better is} 32... Rc8 $17 33. Qd5 Rc1+ 34. Kg2 Qe8) 33. Nd5 $1 $11 {The position is equal.} Qb2 34. Nxf6 Qxa2 {[%mdl 4096] Endgame KQR-KQN} 35. Qe5 {Threatening mate with Ne8+. Dancing on a razor blade.} Qb1+ 36. Kg2 {Active counter play!} Qb7+ 37. d5 {Ne8+ would kill now.} Qb2 38. Ne8+ {[%mdl 64] Discovered Attack (Double check)} Kg8 39. Nf6+ Kh8 40. Qe7 {[%cal Re7f8]} Kg7 41. Nd7 {[%csl Gd7][%cal Re7f8] Inhibits Rb8.} ({Not} 41. Nxh7 $2 {[#]} Kxh7 $1 42. Qxf8 a2 43. Qxf7+ Qg7 $19) 41... Ra8 {aiming for ...a2.} (41... Rc8 $5 42. Ne5 Rf8 $11) 42. Ne5 Rf8 43. Nd7 $1 {[%csl Gd7][%cal Re7f8]} Rc8 (43... Ra8 $5 44. Ne5 Rf8 45. Nd7 $11) 44. Ne5 Rf8 (44... a2 {leads to mate.} 45. Qxf7+ Kh8 46. Qf6+ Kg8 47. Qe6+ Kg7 48. Qd7+ Kh8 49. Qxc8+ Kg7 50. Qc7+ Kh8 51. Qd8+ Kg7 52. Qe7+ Kh6 53. Ng4+ Kh5 54. Qh4#) 45. Nd7 $1 {White happily takes the draw.  Weighted Error Value: White=0.12 (very precise) /Black=0.13 (very precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.1"]
[White "Abdusattorov, Nodirbek"]
[Black "Artemiev, Vladislav"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2651"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,89,37,37,39,33,31,28,35,31,29,26,20,21,31,20,28,30,0,6,0,0,0,20,30,27,-20,-18,-15,-20,-33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-15,-14,-15,-13,-15,-15,-17,-7,-15,-15,-15,-5,-5,-6,-6,-6,-21,0,-15,-15,-15,-15,-15,-15,-15,-15,-29,-29,-29,-29,-29]} 1. c4 e6 2. Nc3 d5 3. d4 h6 4. Nf3 Nf6 5. g3 Nc6 6. Bg2 {D37: Queen's Gambit Declined: 5 Bf4.} Bd6 7. O-O O-O 8. b3 {White has an edge.} dxc4 9. bxc4 e5 10. Rb1 exd4 11. Nxd4 Nxd4 12. Qxd4 Re8 {[#]} 13. Be3 $146 ({Predecessor:} 13. Rd1 Qe7 14. Bb2 Be5 15. Nd5 Nxd5 16. Qxe5 Qxe5 17. Bxe5 Rxe5 18. Rxd5 Re8 19. Rd2 {1-0 (44) Moskvichev,V (2242)-Buczinski,H (2200) ICCF email 2011}) 13... Qe7 $1 14. Nb5 (14. Bxb7 $2 {[#]} c5 $1 {[%mdl 512]} 15. Nd5 cxd4 $17) 14... Be5 15. Qc5 {aiming for Qxe7.} Qxc5 16. Bxc5 {[#] f4 is the strong threat.} Bf5 {Threatens to win with ...a6.} 17. Rb3 (17. f4 $142 Bxb1 18. Rxb1) 17... Ne4 $11 18. Bxe4 Bxe4 19. Re3 Bf5 20. f4 Bf6 21. Nxc7 Rxe3 22. Bxe3 Rc8 23. Nb5 {Hoping for Nd6.} Be7 {Prevents Nd6.} (23... Rxc4 $2 24. Nd6 Be6 25. Nxc4 Bxc4 26. Bxa7 $18) 24. Rc1 a6 25. Nd4 Be4 26. Nf3 Ba3 27. Rc3 Bb4 {A strong pair of Bishops.} 28. Rb3 Bxf3 29. Rxb4 Bxe2 {[%mdl 4096] Endgame KRB-KRB} 30. c5 Bf3 31. Kf2 Bc6 32. Rd4 Re8 33. g4 f5 34. h3 Kf7 35. Rd6 fxg4 36. hxg4 Re4 37. Rd4 g6 38. Rd6 Re6 (38... Ra4 {keeps more tension.} 39. Bd4 Rxa2+ 40. Ke1 Be8 41. f5 gxf5 42. gxf5 Rh2) 39. Rxe6 Kxe6 {KB-KB} 40. f5+ gxf5 41. gxf5+ Kxf5 42. Bxh6 Ke4 43. Ke2 Kd4 44. Kd2 Kxc5 45. Kc3 {Weighted Error Value: White=0.04 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.2"]
[White "Esipenko, Andrey"]
[Black "Carlsen, Magnus"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2714"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,88,18,18,17,28,17,31,14,43,44,41,30,44,34,54,52,61,45,41,30,41,39,46,44,37,8,42,0,75,72,100,99,99,110,118,73,86,86,88,90,105,74,155,153,147,122,109,89,222,208,218,204,281,215,212,211,397,410,426,420,528,516,533,535,554,548,571,573,614,591,851,793,1266,1223,1537,1518,1288,1169,3915]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Nc3 d6 7. a4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} a5 {7...Be6 is becoming the main line.} 8. Re1 Nb4 9. Ne2 {[#] White is slightly better.} Be6 $146 (9... Bg4 {with more complications.} 10. Ng3 Nd7 11. c3 Bxf3 12. gxf3 Nc6) ({Predecessor:} 9... Bg4 10. Ng3 c6 11. c3 d5 12. exd5 Bxf3 13. gxf3 cxd5 14. Bb5 Nc6 15. f4 exf4 16. Bxf4 {1-0 (42) Van Foreest,J (2701)-Ivanisevic,I (2604) Terme Catez 2021}) 10. Bxe6 fxe6 11. Ng3 Nc6 12. c3 Nd7 13. Be3 Nf6 14. d4 exd4 15. cxd4 d5 16. Ng5 {[%cal Bf3g5,Bg5h3,Bh3f4,Bf4e6][%mdl 32]} Qd7 17. e5 Ne8 18. Nh3 Ra6 19. Qg4 (19. Rc1 $14) 19... Rb6 (19... Nb4 $11) 20. Nf4 $36 {[%mdl 2048] White is really pushing.} Rxb2 21. Qxe6+ ({Don't blunder} 21. Nxe6 $2 Nd8 22. f4 (22. Bc1 $2 Rbxf2 23. Be3 R2f7 $19) 22... Nxe6 $19) 21... Qxe6 22. Nxe6 Rf7 23. Rec1 ({White should play} 23. Reb1 Rxb1+ 24. Rxb1) 23... g6 24. Rab1 Rxb1 25. Rxb1 Nb4 26. Ne2 c6 (26... b6 $142) 27. Bh6 Rf5 28. g4 {White is more active.} Rf3 29. Be3 $1 Kf7 {[#] Black cannot hold the game after this.} (29... Rf7 $16) 30. N6f4 $1 $18 g5 {[#]} 31. Nh5 Kg8 32. Kg2 Rf8 33. h4 h6 (33... gxh4 {was worth a try.} 34. Bh6 Rf7) 34. Neg3 Kf7 35. Nf5 Rh8 36. Nxe7 {White is clearly winning.} Kxe7 37. hxg5 hxg5 38. Bxg5+ Kf7 39. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} Rg8 40. Kg3 Nc7 41. Nf6 Rg7 42. Bh6 Rg6 43. g5 Ne6 44. f5 Rxf6 {Weighted Error Value: White=0.08 (flawless) /Black=0.35} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.3"]
[White "Nepomniachtchi, Ian"]
[Black "Giri, Anish"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2773"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,105,0,11,0,18,6,20,14,20,0,0,0,0,0,75,86,86,58,70,-10,-14,-1,-7,-14,-6,-10,-4,-31,22,20,31,30,33,10,8,8,19,0,4,0,0,0,0,0,0,0,0,0,0,0,41,2,250,236,236,226,224,217,109,117,220,187,269,236,258,264,421,387,732,651,607,611,29985,29986,29986,29987,29987,29988,29990,29988,29988,29989,29989,29990,29990,29991,29991,29992,29992,29993]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Be3 Be6 10. Re1 {Recently 10.Qd3 got a lot of attention. B92: Sicilian Najdorf: 6 Be2.} h6 {[#]} 11. Qd2 $146 ({Predecessor:} 11. a4 Nc6 12. Bf3 Na5 13. Nxa5 Qxa5 14. Bd2 Qc5 15. a5 Rac8 16. Be3 Qb4 17. Qc1 Bd7 18. Rd1 Bc6 19. h3 Rfe8 20. Bd2 Qc5 21. Be3 Qb4 22. Bd2 Qc5 23. Be3 Qb4 {½-½ (23) Vitiugov,N (2727)-Sarana,A (2649) Riga 2021}) 11... Nc6 12. Bf3 {The position is equal.} a5 13. Nd5 a4 14. Nc1 Bxd5 15. exd5 Nd4 (15... Nb8 $11 {remains equal.}) 16. Bxd4 $16 exd4 17. Qxd4 Nd7 18. Nd3 {White is more active.} ({White should try} 18. a3 $14) 18... a3 19. Qb4 {[%csl LRa3,LRb7]} axb2 20. Rab1 Bf6 {[%cal Be7f6,Bf6e5,Be5d4,Bd4c5][%mdl 32]} 21. Nxb2 Rxa2 22. Nd3 Ne5 (22... Rxc2 $15 23. Qxb7 (23. Qxd6 Ne5 $15) 23... Ne5) 23. Be4 $11 Ra7 24. Nxe5 Bxe5 25. g3 Qf6 {...Bc3 is the strong threat.} 26. Re2 Bd4 27. Kg2 Bc5 28. Qb5 b6 29. Rb3 Qd8 30. Rf3 Re7 31. h4 h5 (31... Qe8 $5 32. Bd3 Rxe2 33. Bxe2 Qe5 $11) 32. Qd3 {And now Bh7+ would win.} Rfe8 33. Rf4 Qd7 (33... Ra7 $11 {should be considered.}) 34. Bf5 Qb7 (34... Qd8 $1 $11 35. Be4 Ra7) 35. Bh7+ $18 Kf8 36. Rxe7 Rxe7 37. Bg6 Kg8 38. Bxh5 Qd7 (38... b5 $16 {is a better defense.} 39. Bf3 Qd7) 39. Bg4 $36 {[%cal Bh5g4,Bg4f5,Bf5e4,Be4g6][%mdl 2080] White is on the roll.} Qe8 {[#]} (39... Qb7 $142 40. c4 Re5) 40. h5 $1 {[%cal Bh4h5,Bh5h6][%mdl 32]} Re1 41. Bf5 Kh8 (41... Qe2 {was necessary.} 42. Bh7+ Kf8) 42. Be4 f6 $2 (42... Ba3 43. Qxa3 Rxe4 44. Qxd6 b5) 43. Bg6 Qa8 44. h6 Qa1 {[#]} 45. Qf5 $1 {White mates.} Rg1+ 46. Kh3 {[%cal Rf5c8]} Qf1+ 47. Kg4 {[%cal Rf5c8]} Qd1+ 48. f3 {[%cal Rf5c8]} Rxg3+ 49. Kxg3 {[%cal Rf5c8]} Qg1+ 50. Kh3 {[%cal Rf5c8,Bg3h3,Bh3g4,Bg4h5][%mdl 32]} Qf1+ 51. Kg4 {[%cal Rf5c8]} Qg2+ 52. Kh5 {[%cal Rf5c8]} Qh2+ 53. Rh4 {Weighted Error Value: White=0.09 (flawless) /Black=0.43} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.4"]
[White "Kosteniuk, Alexandra"]
[Black "Mamedyarov, Shakhriyar"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2516"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,108,35,35,31,24,20,19,27,33,31,37,7,10,10,29,7,0,8,4,0,0,-11,-2,-44,-26,-47,-58,-55,-60,-73,-68,-84,-67,-133,-96,-147,-132,-113,-19,-140,-142,-146,-144,-202,-193,-204,-200,-192,-187,-364,-284,-335,-152,-157,-146,-164,-156,-163,-168,-153,-158,-208,-218,-271,-262,-264,-258,-299,-241,-231,-224,-303,-287,-314,-295,-295,-292,-369,-290,-285,-260,-1297,-1282,-1251,-1247,-1219,-1206,-1047,-863,-12325,-6506,-5110,-2600,-29968,-29969,-29958,-29961,-6506,-6113]} 1. e4 {ChessBase II} d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Bc4 e6 7. Bd2 {[%cal Oc3d5] Hoping for Nd5! B01: Scandinavian Defence.} (7. O-O {keeps more tension.} Nbd7 8. a3 c6 9. Nh4 Bg6 10. Bf4) 7... Bb4 $1 {[%mdl 4] is currently scoring better than 7...c6.} 8. a3 Bxc3 9. Bxc3 {The position is equal.} Qb6 10. d5 Nbd7 11. Qe2 {Threatens to win with dxe6.} O-O 12. dxe6 Bxe6 13. Bxe6 {This bishop pair is nice.} Rae8 $1 {[%mdl 64] Pin} 14. O-O {[%cal Oe6f7]} Rxe6 {[#]} 15. Qc4 $146 ({Predecessor:} 15. Qd3 Nc5 16. Qf5 Nce4 17. Bxf6 Nxf6 18. b4 Rfe8 19. Rae1 Ne4 20. Rxe4 Rxe4 21. Ng5 {½-½ (29) Bogdanov,E (2389)-Prie,E (2482) Sautron 2018 EXT 2021 [ChessBase II]}) 15... Ne4 16. Bd4 c5 17. Be3 (17. Bc3 $11) 17... Qxb2 $15 18. Rab1 Qxa3 19. Rxb7 Nb6 20. Qd3 Qa4 21. h4 h6 {To avoid Ng5} 22. Re1 (22. Rc7 $15) 22... Rfe8 23. Qb3 ({Better is} 23. Rc7) 23... Qa6 24. Rc7 {[%cal Oe3d4]} Nc4 (24... Qa5 $17 {White must now prevent ...Rd8.} 25. Qd3 {[#]} (25. Bf4 $2 c4 $19) 25... Nd5 $1) 25. Qb7 (25. Bxc5 $11 Qa5 26. Qb7 Nxc5 27. Rxe6 Qa1+ 28. Kh2 Nxb7 29. Rxe8+ Kh7 30. Rxb7) 25... Qxb7 $17 26. Rxb7 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 27. Ra7 (27. Ra1 $17) 27... Nc3 $19 28. Ra1 Nxe3 29. fxe3 a4 ({Not} 29... Rxe3 30. R1xa5 Ne4 31. Rc7 $17) 30. Rc7 $2 (30. Ra5 {is a better defense.}) 30... Rxe3 {[%cal Oa4a3]} 31. Rxc5 Ra8 (31... a3 $19 {And now ...a2 would win.} 32. Kf2 a2) 32. Nd4 g6 {Prevents Nf5. Black is more active.} 33. Kf2 {[#]} Rh3 {[%mdl 512]} 34. gxh3 Ne4+ 35. Ke3 Nxc5 $17 {[%mdl 4096] Endgame KRN-KRN} 36. Nb5 (36. Kd2 $17) 36... Rb8 $19 37. c4 Re8+ 38. Kf3 Rd8 39. Ke2 Kg7 40. h5 g5 41. Nc3 Re8+ 42. Kf3 Rb8 43. Nb5 Rd8 {Prevents Nd6.} 44. Re1 Rd2 45. Re7 Rd3+ 46. Re3 $2 (46. Kg2) 46... f5 {[%cal Bf7f5,Bf5f4,Bf4f3,Bf3f2][%mdl 32]} 47. Rxd3 Nxd3 {KN-KN} 48. Ke3 Nc5 49. Kd4 {[#]} f4 $1 50. Nc3 {[#]} (50. Kc3 f3) 50... a3 $1 51. Na2 {[#]} Kf6 $1 {[%cal Of6f5] ...Kf5! is the strong threat.} 52. Nc1 {[#]} (52. Nc3 Nb3+) 52... f3 $1 53. Ke3 f2 54. Ke2 {[#]} Nd3 $1 {[%mdl 512] Weighted Error Value: White=0.60/Black=0.13 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.5"]
[White "Keymer, Vincent"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2664"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,147,19,22,80,32,45,29,22,26,25,28,32,28,25,41,26,24,35,43,29,22,25,18,14,14,15,10,23,29,36,36,74,65,117,54,46,60,199,96,120,115,120,123,279,127,119,103,111,112,111,78,88,111,181,181,172,187,187,195,185,179,309,296,275,258,271,202,433,341,225,228,441,433,322,406,687,680,7031,5088,5102,5077,2558,1765,1623,1460,1816,1437,1308,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. O-O e6 6. c4 dxc4 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 b5 {[#] E04: Open Catalan: 5 Nf3.} (9... c3 $11 {keeps the balance.} 10. bxc3 O-O) 10. a4 (10. Ne5 $1 $16 Nxe5 11. Bxa8) 10... Ba6 {[#]} 11. Ng5 $146 {[%cal Bf3g5,Bg5e4,Be4c5][%mdl 32]} ({Predecessor:} 11. axb5 Bxb5 12. Ne5 Rc8 13. Nxc6 Bxc6 14. Nxc4 {½-½ (14) Lodici,L (2487)-Warmerdam,M (2535) Villorba 2021}) 11... Nd5 {White has an edge.} 12. Nde4 Bb4 13. Nc3 Bxc3 14. bxc3 b4 15. Ne4 O-O 16. Nc5 {[%csl LRa6,LRd5]} Bc8 17. cxb4 Ncxb4 18. Ba3 {Hoping for Bxb4. A strong pair of Bishops.} Nc2 19. Ra2 Nxa3 20. Rxa3 Rb8 21. e4 $36 {[%mdl 3072] White has compensation. White is more active.} Nf6 22. Rc3 Rb4 23. Bf1 e5 24. f3 $1 h5 (24... g5 $14) 25. Bxc4 (25. h4 $16) 25... Bh3 26. Nd3 {[%csl LRb4,LRe5]} Rd8 {[#]} (26... Rxa4 $14 27. Nxe5 Be6) 27. Rcc1 (27. Nxb4 $6 Rxd1+ 28. Kf2 Ra1 $16) (27. Bxf7+ $1 $18 {[%mdl 512]} Kxf7 (27... Kf8 28. Bb3) 28. Nxe5+ Ke6 29. Rxd8 Kxe5 30. Rc7) 27... Rxa4 $16 28. Nxe5 Rxd1+ 29. Rxd1 Be6 $2 (29... g5 $16 30. Bb3 (30. Bxf7+ Kg7 $16) 30... Rb4 31. Bxf7+ Kg7) 30. Bxe6 (30. Rd8+ $1 $18 Kh7 31. Nxf7 $1 Bxf7 32. Bxf7) 30... fxe6 $18 {[%mdl 4096] Endgame KRN-KRN} 31. Rd8+ Kh7 32. h4 Ra5 33. Nd3 {White is more active.} Ra3 {[%cal Of6d5]} 34. Kf2 Nd5 35. Nc5 (35. exd5 $6 Rxd3 36. d6 Kg6 $11) 35... Ra2+ 36. Ke1 Ra1+ 37. Kd2 Ra2+ 38. Kc1 $1 Ne3 (38... Nc3 {might work better.} 39. Nxe6 Ne2+ 40. Kd1 Kg6) 39. Nxe6 Rc2+ 40. Kb1 {Threatening mate with Ng5+.} Rc6 41. Nf8+ Kh6 $2 (41... Kg8 42. Nd7+ Kh7) 42. e5 {[%cal Be4e5,Be5e6,Be6e7][%mdl 32] White wants to mate with Rd6+.} Rb6+ 43. Ka2 {And now Rd6+ would win.} Nf5 {To avoid Rd6+} (43... Ra6+ {was called for.} 44. Kb3 Nf5) 44. g4 $1 hxg4 45. fxg4 Nxh4 (45... Ne7 $142 46. Rd7 Ng6) 46. e6 {Threatens to win with e7.} Ng6 {[#]} 47. Rd5 $1 {[%csl Gg4][%cal Rd5h5]} Ra6+ (47... Nf4 48. e7) 48. Kb3 {[%csl Gg4][%cal Rd5h5]} Rb6+ 49. Ka4 {[%csl Gg4][%cal Rd5h5]} Nf4 {[#] Prevents Rh5+.} 50. e7 $1 {[%mdl 512]} Rb4+ (50... Nxd5 51. e8=Q) 51. Ka3 Re4 52. Rd4 $2 Re3+ $11 {The position is equal.} 53. Ka4 Kg5 54. Rd7 Kf6 55. Nh7+ Kg6 56. Nf8+ Kf7 57. Rxa7 Rxe7 58. Rxe7+ Kxe7 {KN-KN} 59. Nh7 Ne6 60. Kb4 Kf7 {( -> ...Kg6)} 61. g5 $1 Kg6 {[%csl LRg5,LRh7]} 62. Nf6 $1 Kxg5 63. Ne8 g6 {[%cal Bg7g6,Bg6g5,Bg5g4][%mdl 32]} 64. Kc3 Kf4 65. Nf6 Kf3 66. Kd2 g5 67. Ke1 $1 Nd4 68. Kf1 $1 Nc6 69. Kg1 Ne5 70. Nh7 $1 g4 71. Nf6 g3 72. Nh5 g2 73. Nf4 $1 Kxf4 74. Kxg2 {White really could win this.  Weighted Error Value: White=0.25 (precise) /Black=0.40} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.6"]
[White "Niemann, Hans Moke"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2642"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,99,0,0,7,0,-31,-51,-32,-42,-25,76,69,75,67,69,65,72,30,35,14,58,42,36,34,66,20,71,71,91,96,243,231,228,241,244,243,260,260,246,283,453,446,393,268,467,459,457,449,459,462,454,463,456,444,453,449,432,475,471,470,597,456,386,386,474,447,610,611,700,675,4774,854,839,823,883,882,1096,1096,1093,1060,29965,29967,29965,29965,29963,29966,29967,29969,29965,29966,2218,2094]} 1. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} d5 2. Nc3 c5 3. e4 dxe4 4. d5 Nf6 5. Nge2 e6 {[%cal Rf6d5]} 6. Nf4 {[#] D00: 1 d4 d5: Unusual lines.} a6 $146 {Prevents Bb5+.} ({Predecessor:} 6... exd5 7. Nfxd5 Be7 8. Bf4 Nxd5 9. Nxd5 Bd6 10. Nf6+ Qxf6 11. Bxd6 Qxb2 12. Be2 Qc3+ {1-0 (20) Limontas,M (2311)-Babrauskas,D (2011) Lichess.org INT 2021}) 7. dxe6 Qxd1+ 8. Kxd1 {Threatens to win with exf7+. Black is slightly better.} fxe6 9. Na4 {Black must now prevent Nb6.} Bd7 (9... Nc6 $11 {keeps the balance.} 10. Nb6 Rb8) 10. Nb6 $16 {[%mdl 1024] White has strong compensation.} Ra7 {[#]} 11. Bc4 $1 (11. Nxd7 $6 Kxd7 12. Bc4 e5 $15) 11... e5 12. Ne6 Nc6 13. Be3 {White is much more active. Black has bad knights.} (13. Nxd7 Kxd7 14. Be3 Nd4 $15) (13. c3 $16) 13... Nd4 $11 14. Ng5 (14. Nxd7 Kxd7 15. Ng5 b5 $15) 14... Bg4+ (14... Bb5 $11 {should be considered.}) 15. Kd2 Bh5 {Prevents Nf7.} 16. Rae1 Bg6 17. f4 (17. f3 $14 {might be stronger.}) 17... exf4 (17... Bd6 $11) 18. Bxf4 $16 Be7 19. c3 Bd8 {This move loses the game for Black.} 20. Nc8 $18 (20. cxd4 Bxb6 21. dxc5 Bxc5 $15) 20... Ra8 21. Nd6+ Kd7 22. Nxb7 ({Don't do} 22. cxd4 $6 Nh5) 22... Bb6 23. cxd4 {Dancing on a razor blade.} cxd4 24. Rc1 Rhe8 {To avoid Be6+} (24... h6 {keeps fighting.}) 25. Bb3 {Ba4+ would kill now.} e3+ 26. Kd1 {Threatening mate with Ba4+.} Ne4 $2 (26... Ng4 {was necessary.}) 27. Ba4+ Ke7 {And now ...Nf2+ would win.} 28. Nxe4 Bxe4 29. Bxe8 Rxe8 30. Nd6 Bxg2 31. Rg1 Bf3+ 32. Kc2 Rf8 {[#]} 33. Kd3 $1 Ke6 {[#]} (33... Rxf4 34. Nc8+) 34. Nc4 $1 Bc5 (34... Rxf4 35. Nxb6) 35. Rg5 Rxf4 36. Re5+ ({Much less strong is} 36. Rxc5 Bg4 37. Rc6+ Ke7) 36... Kf6 37. Rxc5 Bg4 38. Nd6 Kg6 39. Rg1 {aiming for h3.} Kh6 {[#]} 40. Nf7+ $1 {[%mdl 512]} Rxf7 41. Rxg4 Rf2 42. Rxd4 Rxb2 43. Rd6+ g6 44. Rxa6 Rxh2 45. Kxe3 Rh3+ 46. Kf2 Rh2+ 47. Kg3 Rb2 48. a4 Rb3+ 49. Kf4 Rb4+ 50. Ke3 {Weighted Error Value: White=0.14 (very precise) /Black=0.60} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.7"]
[White "Praggnanandhaa R"]
[Black "Ding, Liren"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2612"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,64,13,19,26,24,32,25,20,31,33,14,10,14,17,-17,-6,-36,-25,-29,-31,-20,-23,-156,-139,-181,-182,-162,-31,-184,-193,-195,-185,-335,-334,-360,-389,-513,-496,-491,-446,-533,-530,-520,-507,-537,-400,-549,-519,-674,-629,-739,-583,-583,-566]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. Bg5 {[%cal Bc1g5,Bg5h4,Bh4g3][%mdl 32]} h6 7. Bh4 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. Nbd2 Ba7 9. O-O g5 {White has an edge.} 10. Bg3 O-O 11. a3 Nh7 {[#]} 12. h3 $146 ({Predecessor:} 12. Kh1 Kh8 13. b4 h5 14. b5 Ne7 15. Bxe5+ dxe5 16. Nxe5 Kg7 17. f4 g4 18. d4 {0-1 (34) Adhiban,B (2672)-Vidit,S (2727) Kolkata 2021}) 12... h5 13. d4 g4 14. hxg4 hxg4 15. Bh4 Qd7 16. Nh2 exd4 17. Be2 {[#]} (17. cxd4 $11 {remains equal.} Bxd4 18. Be2) 17... dxc3 $1 $17 18. Nc4 (18. Bxg4 $17 f5 19. Bxf5 Rxf5 20. exf5 cxd2 21. g4) 18... cxb2 $19 19. Rb1 {[%cal Re2g4]} Ne5 (19... Qe6 $19 20. Nxb2 Qxe4) 20. Rxb2 $2 {[#] This move loses the game for White.} (20. Nxe5 $1 $15 dxe5 21. Rxb2) 20... Ng6 $1 21. Bg3 {[%cal Rh2g4]} ({Much worse is} 21. Bxg4 Qc6 22. Bxc8 Raxc8 $19) 21... Nf6 22. Ne3 (22. Re1 $142) 22... Nxe4 23. Nhxg4 f5 {[%cal Bf7f5,Bf5g4][%mdl 32]} 24. Qd5+ Kg7 25. Bh2 Nc3 26. Qc4 Nxe2+ ({Weaker is} 26... fxg4 27. Qxc3+ Kh7 28. Nxg4 $14) 27. Rxe2 fxg4 28. Nd5 Qc6 29. Qb3 Bf5 {Black is clearly winning.} 30. Ne7 Qd7 31. Rfe1 Bxf2+ 32. Rxf2 Nxe7 {Weighted Error Value: White=0.57/Black=0.24 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "3.8"]
[White "Le, Quang Liem"]
[Black "Hansen, Eric"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2709"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,25,52,41,41,41,40,45,52,8,31,36,41,48,47,29,30,13,18,32,17,-10,-5,-16,-11,-30,0,0,17,29,23,16,64,0,0,0,0,0,0,0,11,0,0,6,18,17,8,10,11,11,11,11,11,11,52,11,11,11,11,11,212,212,198,198,729,729,491,442]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 h6 6. d4 {A16: English Opening: 1...Nf6 with ...d5.} Bg7 {[%cal Oc7c5]} 7. e4 Nxc3 8. bxc3 {White is slightly better.} c5 9. Be2 (9. Rb1 $14) 9... O-O (9... Nc6 $5 {[%cal Rc5d4]}) 10. O-O Bg4 11. Rb1 b6 {[#]} 12. Be3 $146 ({Predecessor:} 12. Bf4 cxd4 13. cxd4 Nc6 14. d5 Bxf3 15. Bxf3 Nd4 16. e5 Nxf3+ 17. Qxf3 e6 18. d6 Qxh4 {1-0 (44) Hannum,W (2010)-Pisani,C (2028) ICCF email 2020}) 12... e6 13. dxc5 {Black should prevent Qa4.} (13. Qa4 {is more complex.} Qc7 14. Rfc1 Rc8 15. Bd3 Bxf3 16. gxf3 Nc6 17. Ba6) 13... Nd7 $1 14. cxb6 axb6 15. Qc2 Bxf3 16. Bxf3 Qxh4 17. Rfd1 Ne5 18. Be2 ({But not} 18. Rxb6 $2 Nxf3+ 19. gxf3 Qh3 $19) 18... Rfc8 {[%cal Oc8c3]} 19. c4 Ra3 {[%cal Oa3c3]} 20. Rb3 {To avoid Rc3} ({Reject} 20. Bxb6 {[#]} Nxc4 $1 21. Bxc4 Rc3 $15) (20. Rxb6 Rca8 21. g3 Qh3 $11) 20... Ra4 (20... Rxb3 $11 21. axb3 Qe7) 21. Rxb6 (21. g3 $14 Qh3 22. Bxb6 (22. Rxb6 Rcxc4 23. Qb1 Rxe4 $17)) 21... Rca8 $11 22. g3 Qh3 23. Rb8+ Rxb8 24. Qxa4 Rb2 25. Rd8+ Kh7 26. Qd1 $36 {[%mdl 2048] [#] And now Rd2 would win. White fights for an advantage. Active counter play!} Rxa2 27. Bd4 {Threatens to win with Bxe5. This bishop pair is nice.} h5 $1 28. c5 Ng4 29. Bxg4 {The board is on fire.} Qxg4 30. Qxg4 hxg4 {[%mdl 4096] Endgame KRB-KRB} 31. e5 g5 (31... Rd2 $11) 32. c6 (32. Rd7 $14 {is superior.}) 32... Rc2 33. Rc8 Kg6 34. c7 {Black must now prevent Bb6.} Kh7 $2 {Black cannot hold the game after this.} (34... Kh6 $1 $11 {and Black has nothing to worry.}) 35. Bb6 $18 Bxe5 36. Rf8 Bxc7 (36... Bd4) 37. Rxf7+ Kg6 38. Rxc7 {Weighted Error Value: White=0.08 (flawless) /Black=0.17 (very precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.1"]
[White "Artemiev, Vladislav"]
[Black "Hansen, Eric"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2700"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,47,1,7,0,16,16,0,14,11,12,10,14,10,23,26,17,27,24,31,21,0,0,-3,-11,-10,-17,-12,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 Bb4 5. Bd2 O-O 6. g3 Re8 7. Bg2 h6 {A28: English Opening: Four Knights Variation.} 8. O-O Bxc3 9. Bxc3 d5 10. cxd5 Nxd5 {[#]} 11. Qb3 $146 ({Predecessor:} 11. Rc1 a5 12. Qa4 Nb6 13. Qc2 a4 14. Rfd1 Bf5 15. h3 Qd6 16. e4 Be6 17. Qb1 {1-0 (45) Le,Q (2712)-Tkachiev,V (2649) Khanty-Mansiysk 2013}) 11... Nxc3 12. bxc3 e4 13. dxe4 Rxe4 14. e3 Re8 15. Rfd1 Qf6 16. Qc4 {Prevents Bg4. The position is equal.} Be6 17. Qf4 Qxc3 18. Qxc7 Re7 19. Qf4 Rd7 20. Rdc1 Qb2 21. Rcb1 Qc3 22. Rc1 Qb2 23. Rcb1 Qc3 24. Rc1 {A balanced but interesting game.  Weighted Error Value: White=0.02 (flawless) /Black=0.02 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.2"]
[White "Ding, Liren"]
[Black "Le, Quang Liem"]
[Result "1-0"]
[ECO "D24"]
[WhiteElo "2799"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,97,32,27,0,0,0,0,10,20,17,22,21,20,7,24,18,23,35,23,21,39,35,40,40,48,36,43,29,39,35,33,37,56,54,50,50,53,34,52,33,36,5,14,17,21,25,59,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12830,12829,12830,12829,12830,12831,12831,12832,12832,0,12833,12833,12835,12834,12835,12835,12840,12839,12839,12839,12840,12840,12841,12841,12841,12841]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bxc4 {Threatening 0-0. D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} Nxe4 7. O-O Nxc3 8. bxc3 {The position is equal.} ({Reject} 8. Qb3 Nd5 9. Bxd5 Qxd5 $17) 8... Be7 9. Ne5 {[%mdl 1024] White has compensation.} O-O 10. Qg4 Nc6 11. Re1 f5 12. Qf3 Nxe5 13. Rxe5 Kh8 14. Bf4 Bd6 {[#] aiming for ...g5.} 15. Re3 Bxf4 16. Qxf4 Qd6 17. Qxd6 cxd6 18. Bxe6 f4 19. Ree1 Bxe6 20. Rxe6 $14 {[%mdl 4096] Endgame KRR-KRR} Rac8 21. Rxd6 Rxc3 22. Rd7 {To avoid Rc7} f3 {[#]} 23. Re1 $146 ({Predecessor:} 23. Rxb7 fxg2 24. Rab1 Rd3 25. R1b3 Rxd4 26. Rxa7 h6 27. Kxg2 Rdf4 28. f3 R8f6 29. Re7 {½-½ (35) Yilmaz,M (2624)-Macieja,B (2525) Rio Achaea 2018}) 23... h6 24. Rxb7 Rc2 25. g4 (25. g3 $5 {[%cal Rb7a7]}) 25... Rxa2 26. h3 Rc8 27. Rf7 Kg8 28. Ree7 ({White should play} 28. Rxf3 $14 Rc7 29. Re8+ Kh7 30. Rff8) 28... Rc1+ $11 29. Kh2 Rxf2+ 30. Kg3 Rg2+ 31. Kh4 f2 $1 32. Rxg7+ Kh8 33. Rh7+ Kg8 34. Reg7+ Kf8 35. Rxa7 {[%cal Rh7h8] [#]} Kg8 {Prevents Rh8+.} (35... Rxg4+ $2 36. hxg4 Kg8 37. Rhg7+ Kh8 38. Rgf7 $18) 36. Rhg7+ Kh8 $2 {[%mdl 8192]} (36... Kf8 $11 37. Rgb7 Re1 38. Rf7+ Kg8 39. Rg7+ Kf8 40. Rgf7+ Kg8 41. Rg7+ Kf8) 37. Rgb7 {Intending Ra8+ and mate.} ({Stronger than} 37. Rgf7 Kg8 38. Rg7+ Kf8 39. Raf7+ Ke8 $11) 37... Rc8 {To avoid Ra8} 38. Rh7+ Kg8 39. Rag7+ Kf8 40. Rf7+ Kg8 41. Rhg7+ Kh8 42. Rg6 {White is clearly winning.} Rc7 43. Rxh6+ Kg8 44. Rf5 Rf7 45. Rg6+ Kf8 46. Rgf6 Rxf6 47. Rxf6+ Ke7 48. Rf5 Ke6 49. Kg5 {Weighted Error Value: White=0.06 (flawless) /Black=0.05 (flawless)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.3"]
[White "Duda, Jan-Krzysztof"]
[Black "Praggnanandhaa R"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2760"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,125,7,25,28,27,36,15,36,28,88,89,56,71,72,-19,65,0,17,0,17,23,43,0,59,-4,0,14,70,37,97,86,172,171,179,179,168,175,178,163,179,165,156,164,219,203,220,219,334,193,228,169,176,176,185,171,171,174,164,165,283,190,236,244,271,197,371,397,474,463,596,596,564,577,577,575,1118,1079,1076,1041,1275,836,756,723,1667,1573,1541,1412,1483,503,1646,1605,1379,1317,1314,1201,1050,989,29983,29984,29984,29984,29984,29985,29985,29986,29986,29987,29987,29988,29988,29989,29989,29990,29990,29991]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. c3 d6 6. Bg5 h6 7. Bh4 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. Nbd2 Ba7 {[#]} 9. Bb3 $146 ({Predecessor:} 9. O-O g5 10. Bg3 O-O 11. a3 Nh7 12. Kh1 Kh8 13. b4 h5 14. b5 Ne7 15. Bxe5+ dxe5 16. Nxe5 {0-1 (34) Adhiban,B (2672)-Vidit,S (2727) Kolkata 2021}) 9... O-O {The position is equal.} 10. h3 g5 {[#]} (10... Kh8 $11 {keeps the balance.}) 11. Nxg5 $1 $16 hxg5 12. Bxg5 Kg7 13. f4 ({White should play} 13. Qf3 $1 $16) 13... Qe8 (13... exf4 $11 14. d4 Qe8) 14. f5 (14. Rf1 $1 $14) 14... Rh8 15. Qf3 {[%mdl 1024] White has compensation.} Nb8 16. h4 Nbd7 17. g4 b5 $1 18. Nf1 (18. a3 $1 $14) 18... a4 19. Bc2 Bb7 (19... b4 $11) 20. Ng3 Qg8 ({Better is} 20... b4 $14) 21. Bd2 {White now steadily converts the win.} Nxg4 22. Qxg4+ $18 Kf8 23. Qf3 f6 24. h5 Ke7 25. Rh4 {[%cal Bh1h4,Bh4g4,Bg4g6][%mdl 32]} Qf7 26. Rg4 Rag8 27. Rg6 d5 (27... Bc6 $142 28. b3 Kd8) 28. b3 Bc6 29. Qg4 ({Don't take} 29. c4 $6 dxc4 30. dxc4 bxc4 $16) 29... Nc5 (29... Kd8 {was necessary.} 30. h6 Bb6) 30. Ke2 (30. bxa4 $142 {Black must now prevent Bh6.} bxa4 31. Bh6) 30... dxe4 31. Nxe4 {Dancing on a razor blade.} Nxe4 32. dxe4 Be8 {Hoping for ...Qh7.} 33. Rh1 Qh7 {[#]} 34. Rxg8 (34. bxa4 Bxg6 35. fxg6 {[#]} Rxg6 $1 36. Qxg6 Qxg6 37. hxg6 Rxh1 $15) 34... Rxg8 35. Qf3 axb3 (35... Rh8 $142) 36. axb3 Bf7 (36... Rh8 $142) 37. h6 {[%cal Bh5h6,Bh6h7][%mdl 32]} Bc5 38. Be3 Bd6 (38... Bxe3 {is a better defense.} 39. Qxe3 (39. Kxe3 Rh8 $18) 39... Kd7) 39. Ra1 Qh8 40. Qh3 Ra8 41. Rxa8 Qxa8 42. h7 Qh8 43. Bh6 {[%cal Oh6g7] And now Bg7! would win.} Bc5 44. b4 Bb6 45. Kd2 Kd7 46. Be3 Bxe3+ 47. Kxe3 Ke7 48. Kd2 Kf8 49. Qh6+ ({Not} 49. Bd3 Kg7 $16) 49... Ke7 50. Bd3 (50. Kc1 $142 Bc4 51. Kd2) 50... c6 (50... Be8 $142 51. c4 c6) 51. Kc1 Be8 52. Bc2 {White threatens Kb2 and mate.} Bf7 53. Kb2 {Bb3 would kill now.} Bc4 54. Bb3 {Threatening mate with Bxc4.} Bxb3 55. Kxb3 {KQ-KQ. White mates.} Kf7 56. Qg6+ Kf8 57. Kc2 Qg7 58. Kd3 Qh8 59. Ke2 Qg7 60. Kf3 Qh8 61. Kg4 Qg7 62. Kh5 Qh8 63. Kh6 {Weighted Error Value: White=0.26 (precise) /Black=0.52} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.4"]
[White "Aronian, Levon"]
[Black "Niemann, Hans Moke"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2772"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,126,22,0,14,9,10,0,0,0,0,-7,0,-12,0,-7,13,16,14,0,0,0,0,0,0,0,0,0,0,-21,0,0,10,11,7,7,7,0,0,4,2,0,0,-12,-10,-22,-26,-18,-23,-20,0,-66,-39,-43,-45,-44,-44,-141,-133,-150,-150,-146,-150,-217,-212,-339,-295,-338,-242,-568,-538,-524,-427,-570,-536,-616,-580,-2376,-1591,-2376,-2376,-2376,-2361,-1924,-417,-2361,-2191,-1152,-2283,-6048,-5600,-2922,-948,-12834,-409,-12830,-12836,-12840,-12830,-12822,-12822,-29974,-29974,-29976,-29977,-29974,-29965,-29964,-29964,-29974,-12359,-29979,-29980,-29981,-29982,-29982,-29983,-29983,-29983]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 (5. O-O d6 6. c3 O-O 7. Re1 h6 8. Nbd2 a6 9. a4 Ba7 10. Nf1 Re8 11. Ng3 Be6 12. Bxe6 Rxe6 13. b4 d5 14. Qc2 d4 15. b5 Ne7 16. cxd4 Bxd4 17. Nxd4 Qxd4 {1-0 (42) Aronian,L (2782)-Niemann,H (2638) Riga 2021}) 5... h6 6. h3 a6 {C50: Hungarian Defence and Giuoco Pianissimo.} 7. a4 d6 8. Be3 Bxe3 {The position is equal.} 9. fxe3 Be6 10. b3 O-O 11. O-O {[#]} Re8 $1 $146 {[%mdl 8] A relevant novelty.} ({Predecessor:} 11... d5 12. exd5 Nxd5 13. Qd2 Nxc3 14. Qxc3 Qd6 15. Nd2 f5 16. Bxe6+ Qxe6 17. Qc4 Qxc4 18. bxc4 {½-½ (51) Carlsen,M (2865)-Vidit,S (2727) Wijk aan Zee 2022}) 12. Qd2 Ne7 13. Bxe6 fxe6 14. d4 Ng6 15. Qf2 Kh7 16. Rad1 Qe7 {[%cal Ob7b5]} 17. Qg3 {[%cal Rd4e5]} exd4 18. exd4 e5 19. Kh2 Rf8 20. dxe5 dxe5 21. Nd5 Nxd5 22. Rxd5 c6 23. Rd2 Rad8 24. Rxd8 Rxd8 25. Qg4 Rf8 {[%cal Bd8f8,Bf8f4,Bf4e4,Be4e2,Be2e3,Be3b3][%mdl 32]} 26. Rd1 Rf4 27. Qd7 Rxe4 28. Qxe7 Nxe7 $11 {[%cal Bg6e7,Be7f5,Bf5d4,Bd4c2][%mdl 4128] Endgame KRN-KRN} 29. Rd7 {[%csl LRb7,LRe7]} Nf5 30. g4 ({White should play} 30. Rxb7 $11 Re2 31. c3) 30... Re2+ 31. Kg1 Nd4 32. Nxe5 Nxc2 33. Nf3 {Black converts the advantage convincingly.} (33. Nf7 $15) 33... Re3 $17 {[%csl LRb3,LRf3]} 34. Nh4 Rxb3 ({Stronger than} 34... Rxh3 35. Nf5 $17) 35. Nf5 Kg6 36. h4 (36. Rxg7+ $17 Kf6 37. Rh7) 36... Ne3 $19 37. h5+ (37. Ne7+ $142 Kf6 38. Ng8+ Ke5 39. Rxg7) 37... Kf6 38. Nxe3 Rxe3 39. Rxb7 $2 {[#] KR-KR} (39. g5+ hxg5 40. Rxb7) 39... Rg3+ 40. Kf2 Rxg4 41. Rb6 Rxa4 42. Rxc6+ Kg5 43. Rg6+ Kxh5 44. Rxg7 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 45. Kf3 Rb4 46. Ra7 Rb5 (46... a4 $142 {aiming for ...Kh4.} 47. Ra6 Rb3+ 48. Ke2 a3) 47. Rg7 (47. Ra6 $142 Rb3+ 48. Ke2) 47... Rf5+ 48. Ke4 Rg5 49. Rh7 a4 {[#] ( -> ...Ra5)} 50. Ra7 {Prevents Ra5.} Rg4+ (50... Kh4 $142 51. Ra8 h5) 51. Kf3 Rb4 (51... Kh4 $142 52. Kf2 h5) 52. Ra5+ (52. Kg3 $142 Kg6 53. Kf3) 52... Kh4 53. Rc5 h5 54. Ra5 Rg4 55. Ke2 Rf4 56. Ke3 Kg4 57. Ra8 Rb4 58. Rg8+ Kh3 59. Kf3 Rb3+ (59... a3 $142 60. Rg3+ Kh4 61. Rg6 Ra4 62. Rg1 a2 63. Rh1+ Kg5 64. Rg1+ Kf5 65. Ra1 h4 66. Kg2 Ra3 67. Kf1 Kf4 68. Kg2 Ke5 69. Kh1 Kd4 70. Kh2 Kc3 71. Kg2 Kb2 72. Rf1 a1=Q 73. Rxa1 Kxa1 74. Kh2 Kb1 75. Kg1 Kc2 76. Kh2 Kd2 77. Kg1 Ke2 78. Kg2 Ra1 79. Kh3 Kf3 80. Kxh4 Ra5 81. Kh3 Rh5#) 60. Kf2 a3 {Black mates.} 61. Rg5 h4 {[%cal Bh5h4,Bh4h3][%mdl 32]} 62. Ra5 Kh2 63. Ra4 h3 {Weighted Error Value: White=0.73/Black=0.21 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.5"]
[White "Mamedyarov, Shakhriyar"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "2767"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,100,27,0,0,0,0,0,0,-18,-22,-27,5,-35,-48,-44,-44,-36,-37,-47,-71,-115,-112,-154,-142,-212,-222,-228,-217,-287,-279,-389,-394,-386,-363,-435,-406,-451,-235,-360,-334,-418,-375,-360,-355,-318,-324,-309,-315,-524,-373,-403,-373,-376,-325,-446,-454,-569,-564,-542,-464,-460,-448,-1588,-456,-1468,-1400,-1043,-397,-1061,-1037,-29996,-1729,-29996,-29997,-29998,-29999]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 Nd7 12. O-O b6 13. Rfe1 Bb7 14. Rad1 Rc8 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} 15. Bb3 h6 16. Qf4 Qc7 {The position is equal.} 17. Qh4 Nf6 18. Ne5 Rfd8 19. f3 b5 20. Qf2 a5 {...a4 is the strong threat.} 21. a4 b4 {[#]} 22. h4 $146 {[%cal Od1c1]} ({Predecessor:} 22. Nc4 Ba6 23. Rc1 Bxc4 24. Rxc4 Qa7 25. Rec1 Rxc4 26. Rxc4 Nd7 27. Rc6 Nf6 28. Rc5 {1-0 (48) Sinanan,J (2249)-Katz,B (2128) ICC INT 2009}) 22... Nd7 23. Ng4 {Black continues to play with concentration.} (23. Nxd7 $142 Qxd7 24. d5 exd5 25. exd5) 23... Qf4 $17 24. g3 (24. Qe3 $142 Qg3 25. Qf2 Qxf2+ 26. Kxf2) 24... Qb8 25. Re3 (25. Rc1 $17 {was worth a try.}) 25... Ba6 $19 26. f4 h5 27. f5 {[%cal Of5e6]} Bc4 ({Inferior is} 27... hxg4 28. fxe6 fxe6 29. Bxe6+ Kh8 30. Qf5 $11) 28. Nh2 Bxb3 29. Rxb3 exf5 30. Qxf5 Rc3 31. Rb2 Nf8 ({Don't go for} 31... Qxg3+ $2 32. Rg2 Qe3+ 33. Rf2 $19) (31... Rxg3+ $142 32. Kh1 Nf6) 32. Kh1 (32. Nf1 {only move.} Qa7 33. Kg2) 32... Rxg3 33. Qxa5 {[#]} Qf4 $1 {[%mdl 512]} 34. Qf5 Qxh4 {White must now prevent ...g6.} 35. Rf1 Qe7 ({Wrong is} 35... Rxd4 $2 36. Qxf7+ Kh7 37. Qf4) 36. Nf3 g6 37. Qa5 (37. Qf4 Rh3+ 38. Kg2) 37... b3 {[%cal Od8d4]} 38. Kh2 Rg4 39. Qe5 Qd7 40. Rxb3 Re8 41. Qd5 Qc7+ 42. Kh1 Qg3 {[%csl Gg4][%cal Rg3g2]} 43. Rb2 {To avoid Qg2+} Rf4 {Threatens to win with ...Qh3+.} 44. e5 (44. Rbf2 $142) 44... Ne6 (44... Qh3+ $142 45. Rh2 Qxf1+ 46. Ng1 Rg4) 45. Rg2 (45. Nh2 $142 Rxf1+ 46. Nxf1) 45... Qh3+ 46. Kg1 {[#]} Rd8 $2 (46... Nxd4 $1 {[%mdl 512]} 47. e6 (47. Nh2 Qe3+) 47... Nxf3+ 48. Rxf3 Qxf3 49. exf7+ Rxf7 50. Qxf3 Rxf3 51. Rxg6+ Kh7) 47. Qb7 (47. Qb3) 47... Nxd4 48. Qb6 Rd7 (48... Nxf3+ $142 49. Kf2 Nd2+ 50. Ke2 Qd3+ 51. Ke1 Rxf1#) 49. e6 Nxf3+ 50. Rxf3 Rd1+ {Weighted Error Value: White=1.02/Black=0.56} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.6"]
[White "Giri, Anish"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2772"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,131,25,18,5,0,16,11,52,42,59,48,68,39,39,41,118,100,77,30,29,33,26,0,6,0,0,0,0,0,0,-6,0,0,0,0,0,0,0,-9,0,0,7,0,31,0,43,39,34,35,37,32,74,0,85,83,131,123,150,141,114,99,106,33,32,36,59,59,63,61,63,63,58,0,0,0,0,0,44,24,30,20,11,16,43,59,79,22,211,248,336,331,312,291,479,425,485,458,360,356,362,310,282,289,352,146,483,70,503,464,483,294,580,568,765,744]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a4 b4 9. a5 {9.a5 has become a bit dusty these days.} O-O 10. Nbd2 Be6 {C84: Closed Ruy Lopez: Unusual White 6th moves.} 11. Nc4 Nd7 12. Be3 Bg4 {[#]} (12... Bf6 $11) 13. h3 $146 ({Predecessor:} 13. c3 bxc3 14. bxc3 Kh8 15. h3 Bxf3 16. Qxf3 Bg5 17. Qg3 Bxe3 18. Nxe3 Ne7 19. Bc4 {1-0 (26) Gijsen,S (2194)-Finke,D (1987) Dortmund 2017}) 13... Bh5 14. g4 Bg6 15. Kh2 {White is more active.} Kh8 16. Rg1 Nc5 (16... Na7 $14) 17. Bxc5 $16 dxc5 18. Kh1 ({But not} 18. Ncxe5 $2 Bd6 19. Kg2 (19. d4 $2 cxd4 20. Kg2 Nxe5 $19) 19... Nxe5 $19) ({Much worse is} 18. Nfxe5 Nxe5 19. Nxe5 Bd6 $11) (18. Ba4 $16 Nd4 19. Nfxe5) 18... f6 $11 19. Ne3 Nd4 20. Nxd4 cxd4 21. Nf5 Bf7 22. Qd2 c5 23. Bxf7 Rxf7 24. b3 Bf8 25. Ng3 Rb8 26. f4 exf4 27. Qxf4 Bd6 28. Qf3 Qe8 29. Nf1 Qe5 30. Rg2 {[%cal Bg1g2,Bg2f2,Bf2f3][%mdl 32]} Qf4 31. Rf2 Qxf3+ (31... Qh6 $11) 32. Rxf3 $14 g6 33. Nd2 Kg7 $1 34. Nc4 Bc7 35. h4 (35. Kg2 $16) 35... Rbf8 (35... h5 $1 $11 36. gxh5 Rh8) 36. Raf1 $16 Bd8 (36... h5 $142) 37. Kg2 Be7 38. Kh3 Bd8 39. Nd6 Re7 40. g5 (40. Kg2 $16) 40... Re6 $1 $14 41. Nc4 {[%cal Oc4b6]} Be7 42. Kg4 h5+ 43. gxh6+ $1 Kxh6 44. Rh1 {Strongly threatening h5.} Rg8 $1 {[%cal Of6f5]} 45. Kh3 ({White should play} 45. Rg3 $14) 45... Bd8 $11 46. Rhf1 Rh8 47. Kg4 {[%cal Oh4h5]} Kg7 (47... Rf8 $11 {might be stronger.}) 48. Rh3 $1 $14 Rh5 {[#]} 49. Rf5 $1 gxf5+ 50. exf5 Re2 51. Kxh5 {aiming for Rg3+.} Rxc2 {[%mdl 4096] Endgame KRB-KRN} 52. Rg3+ (52. Rh1 $1 $16 {[%cal Rh1e1]}) 52... Kh7 $2 (52... Kf7 $11 {and Black is okay.}) 53. Rg1 $1 $18 {Hoping for Re1.} Re2 {Inhibits Re1.} (53... Rc3 $2 54. Re1 $18) 54. Kg4 $1 Bc7 55. Kf3 {Prevents Rf2+.} Re8 (55... Rc2 56. Re1 Be5 57. Nxe5 fxe5) 56. h5 Bd8 57. Rg6 Re1 {[#]} 58. h6 $1 Re8 59. Rg7+ Kxh6 60. Ra7 Kg5 {[#]} 61. Rxa6 (61. Ra8 $1 $18 {is the precise move to win. Rc8 is the strong threat.} Rh8 62. Ke4) 61... Bc7 $2 {[%mdl 8192]} (61... Re7 $16 {is a better chance.} 62. Rc6 Bxa5) 62. Rc6 $2 ({White should try} 62. Ra7 $18 Bf4 63. Rg7+ Kxf5 64. a6) 62... Bf4 {[%mdl 8192]} (62... Bxa5 $1 $14 63. Nxa5 Re3+ 64. Kf2 Kxf5) 63. Rxc5 Rh8 64. a6 Rh3+ $2 (64... Ra8 {keeps fighting.} 65. Ra5 Bc7) 65. Ke4 Rh4 66. Rc8 {Weighted Error Value: White=0.29 (precise) /Black=0.49} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.7"]
[White "Carlsen, Magnus"]
[Black "Nepomniachtchi, Ian"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2865"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,136,-28,9,0,-8,-13,-9,-17,-20,-13,0,0,81,76,81,76,79,75,68,72,82,79,71,-43,-46,-38,-38,-35,-10,-85,-86,-113,-68,-70,-66,-69,-73,-62,-73,-83,-69,-63,-68,-87,-23,-41,-27,-22,-29,-33,0,-13,-6,-10,-10,-10,-12,-8,0,0,0,-20,-20,-21,-24,-25,-26,-112,-122,-91,-25,-31,-12,-22,-19,-23,-24,-37,-37,-40,-40,-40,-40,-56,-52,-52,-51,-46,-45,-45,-38,-38,-38,-38,-38,-62,-52,-106,-62,-54,-54,-92,-92,-276,-101,-179,-79,-79,-79,-218,-179,-198,-179,-181,-137,-138,-138,-138,-94,-2092,-2034,-1379,-1270]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Na3 (7. Qc2 b5 8. Ne5 c6 9. a4 Nd5 10. Nc3 f6 11. Nf3 Qd7 12. e4 Nb4 13. Qe2 Nd3 14. e5 Bb7 15. exf6 Bxf6 16. Ne4 Na6 17. Ne5 Bxe5 18. dxe5 Nac5 {½-½ (58) Carlsen,M (2855)-Nepomniachtchi,I (2782) Dubai 2021}) 7... Bxa3 8. bxa3 Bd7 (8... b5 $5 {[%cal Rc8b7]}) 9. a4 {E05: Open Catalan: 5 Nf3 Be7.} Bc6 10. Ba3 Re8 11. Qc2 {The position is equal.} Nbd7 12. Rac1 {[#]} Bd5 $146 ({Predecessor:} 12... a6 13. Qxc4 Nb6 14. Qc3 Nxa4 15. Qb3 Qd5 16. Rxc6 Qxc6 17. Ne5 Qb5 18. Qc2 Nd5 {1-0 (36) Carlsen,M (2865)-Giri,A (2772) Wijk aan Zee 2022}) 13. Rfe1 Rc8 (13... a5 $11 {remains equal.}) 14. e4 $16 {[%mdl 1024] White has strong compensation.} Bc6 15. Nd2 c3 16. Nb1 Nb6 {[%csl LRa4,LRd4]} 17. a5 $1 Na4 18. Nxc3 Qxd4 19. Nxa4 (19. e5 $1 $16 {Strongly threatening Bxc6.} Bxg2 20. Qxa4 Qxa4 21. Nxa4) 19... Qxa4 $15 20. Qxa4 Bxa4 21. Bb2 b6 22. Bf1 (22. Bxf6 $11 gxf6 23. e5) 22... c5 $17 (22... bxa5 23. Rc5 $11) 23. f3 Red8 (23... bxa5 $6 24. Re3 $11) (23... b5 $17 24. Re2 Red8) 24. Ba6 $15 Rc6 25. Be5 Nd7 {[%cal Bf6d7,Bd7f8,Bf8e6][%mdl 32]} 26. Bf4 e5 27. Be3 Rd6 28. Rb1 Nf8 29. f4 Bc2 (29... Nd7 $17) 30. fxe5 Rg6 31. Rb2 Bxe4 32. Rf1 Rd7 33. e6 Nxe6 (33... Rxe6 $5 34. Bc8 h6 $11) 34. axb6 axb6 $40 {[%mdl 128] Black mounts an attack.} 35. Rxb6 h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 36. Bc4 {This bishop pair is nice.} h4 37. Bxe6 fxe6 38. Rb8+ Kh7 39. Rf4 Rd1+ 40. Kf2 Rf6 41. Bxc5 (41. Rxf6 $11 {keeps the balance.} gxf6 42. Bxc5) 41... Rxf4+ $1 $17 42. gxf4 $11 {[%mdl 4096] Endgame KRB-KRB} Bd5 ({Black should play} 42... Rh1 $1 $17 {[%cal Rh1h2]} 43. Ke3 Bg2) 43. Rb2 Rd3 44. Ke1 Kg6 45. a4 Rc3 46. Bd6 Rc1+ 47. Kd2 Ra1 48. Be5 Rxa4 49. Rb1 Ra2+ 50. Rb2 Ra7 51. Rb1 Kf5 52. Ra1 Rd7 53. Rg1 {Inhibits g5. Intending Ke3 and mate.} Bg2+ 54. Ke3 h3 55. Bd4 Rb7 56. Rc1 {[#]} (56. Re1 $15) 56... Bd5 (56... g6 $1 $17 57. Rc8 (57. Rc5+ Bd5 $17) 57... Rb3+ 58. Bc3 Ra3 59. Rf8+ Kg4) 57. Rg1 {[%csl Gf4][%cal Rg1g5]} Rb3+ 58. Kd2 g6 59. Rg5+ $2 (59. Bc3 $17) 59... Ke4 $2 (59... Kxf4 $19 {and Black stays clearly on top.} 60. Rg1 g5 61. Rf1+ Ke4) 60. Be5 {[#]} (60. Bg1 $17) 60... Rf3 (60... Ra3 $1 $19 {[%cal Ra3a2] has better winning chances. Hoping for ...Ra2+.} 61. Bb2 Rf3) 61. Ke1 $17 Bc4 62. Rxg6 (62. Rg1 $17 {was necessary.}) 62... Rf1+ $19 63. Kd2 Rf2+ 64. Kc3 Bd5 ({Inferior is} 64... Rxh2 65. Kxc4 Rh1 66. Rxe6 $11 (66. Rh6 h2 $11)) (64... Ba2 $19 65. Bb8 Rxh2) 65. Rh6 $17 Rxh2 {And now ...Ra2 would win.} 66. Kb4 Kf5 (66... Ba8 $142 {White must now prevent ...Rh1.} 67. Rxe6 Rc2) 67. Kc5 $2 {[%mdl 8192]} (67. Rf6+ $17 Ke4 68. Rh6) 67... Rc2+ $19 68. Kd6 h2 {Weighted Error Value: White=0.19 (very precise) /Black=0.18 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "4.8"]
[White "Abdusattorov, Nodirbek"]
[Black "Esipenko, Andrey"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2651"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,129,-2,12,6,2,2,7,0,4,10,5,-16,-11,-10,-7,-51,16,12,21,13,18,-10,-6,-27,-8,-29,27,20,55,14,51,8,10,12,26,21,37,25,64,58,67,53,102,99,92,86,91,91,91,82,78,83,85,77,86,91,84,99,101,100,103,93,162,162,263,131,135,145,181,110,339,339,373,129,139,96,133,134,241,185,182,128,131,135,219,128,135,34,46,22,18,18,31,8,7,8,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Bb4 3. Nd5 Be7 4. e3 Nf6 5. Ne2 Nxd5 6. cxd5 {[#] A21: English Opening: 1...e5 2 Nc3.} c6 $146 ({Predecessor:} 6... O-O 7. Nc3 c5 8. Be2 d6 9. O-O Na6 10. a4 Nc7 11. Bc4 a6 12. d4 exd4 13. exd4 {0-1 (27) Malmstig,E (2336)-Logdahl,H (2249) Ronneby 2018}) 7. Nc3 O-O 8. d4 exd4 9. Qxd4 Bf6 10. Qd1 Re8 11. Bd3 Na6 12. Ne4 (12. Bxa6 $11 bxa6 13. O-O) 12... cxd5 (12... Be5 $15) 13. Nxf6+ $11 Qxf6 14. O-O Nc5 15. Bb5 b6 16. Qxd5 Bb7 17. Qd4 Qg6 ({Black should try} 17... Qxd4 18. exd4 Ba6 $1 19. Bxa6 Nxa6) 18. f3 Bc6 19. Be2 d5 20. Bd2 (20. b4 $14 {might be stronger.} Ne6 21. Qd2) 20... Ne6 21. Qd3 Qf6 22. Rac1 Rac8 23. Qa3 a5 24. Ba6 Rc7 25. Qb3 Bb7 (25... Rb8 $14 {should be considered.}) 26. Bxb7 $16 Rxb7 {[#]} 27. Bxa5 $1 d4 28. Bd2 dxe3 29. Bxe3 Nd4 {Prevents Qb5.} 30. Qc4 Rd7 31. Rfe1 $36 {[%mdl 2048] White is in control.} h6 32. Bf2 Red8 33. a4 Rd5 34. b4 Rg5 35. Bg3 $1 h5 (35... b5 $16 36. axb5 Rxb5) 36. Kh1 $1 $18 {aiming for Bh4.} Nf5 (36... Nxf3 {is a better defense.} 37. Rf1 (37. gxf3 $2 Qxf3+ 38. Kg1 Rxg3+ 39. hxg3 Qxg3+ 40. Kf1 Qf3+ 41. Kg1 Rd6 $19) 37... Nd2 38. Rxf6 Nxc4) 37. Bf4 (37. Be5 $18 {has better winning chances.} Qg6 38. g3) 37... Rg6 $16 38. Qc7 Ra8 39. Qe5 {To avoid Qb2} (39. Re5 $18) 39... Nh4 $2 (39... Qxe5 $16 40. Rxe5 Nd4) 40. Qxf6 $18 gxf6 41. g3 (41. a5 $1 $18 {[%cal Ra5b6]} bxa5 42. b5 Nxg2 43. b6 $1 (43. Re4 f5 $15) 43... Nxe1 44. b7) 41... Nxf3 $16 42. Re3 (42. Rf1 $142 Ne5 43. Ra1) 42... Ne5 43. Ra3 ({But not} 43. Bxe5 $6 fxe5 44. Rxe5 Rxa4 $14) 43... Ng4 (43... Kh7 $16 {was called for.} 44. a5 bxa5) 44. a5 bxa5 45. Rxa5 (45. Kg2 $18) 45... Re8 46. Ra2 {Prevents Nf2+. White is more active.} Ne5 {[#]} (46... f5 $16 47. b5 Rb6) 47. Rd1 (47. b5 $1 $18) 47... Rb8 {[#]} 48. Rd4 (48. Rb1 $1 $16) 48... h4 $1 $14 49. Kg2 hxg3 50. hxg3 Kh7 51. Ra7 {[%cal Oa7f7]} Rgg8 {The position is equal.} 52. Ra6 Kg7 53. Re4 Rb7 54. Rd6 Rc8 55. Rd5 Rc2+ 56. Rd2 Rc4 57. Rdd4 Rxd4 58. Rxd4 $11 {[%mdl 4096] Endgame KRB-KRN} Nc6 {[%csl LRb4,LRd4]} 59. Rd6 Nxb4 60. Bd2 Rb5 61. Bxb4 Rxb4 62. Kf3 Kg6 63. Rd7 f5 64. Ra7 f6 65. Rc7 {Black escapes into a draw.  Weighted Error Value: White=0.21 (precise) /Black=0.19 (very precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.1"]
[White "Esipenko, Andrey"]
[Black "Artemiev, Vladislav"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2714"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,138,14,16,5,22,26,36,21,14,20,20,24,23,16,23,12,10,11,32,0,0,0,0,0,0,0,0,0,0,0,0,-21,-15,-44,-37,-68,-62,-68,-66,-98,-90,-90,-41,-41,-45,-32,-32,-37,-18,-34,-18,-25,-2,-13,12,-38,-53,-53,-33,-50,-40,-98,-95,-126,-8,-91,-82,-357,-346,-338,-349,-354,-308,-450,-142,-146,-137,-122,-137,-158,-159,-162,-181,-185,-189,-201,-29,-368,-356,-343,-338,-424,-302,-306,-280,-269,-277,-285,0,0,-1,-84,-97,-139,-139,-139,-139,-139,-63,-112,0,-139,-139,-536,-524,-920,-907,-841,-802,-691,-683,-871,-566,-12840,-12840,-29983,-29984,-12844,-12838]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Nc3 d6 7. a4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} a5 {7...Be6 is the modern continuation.} 8. Re1 Re8 9. h3 {White is slightly better.} h6 10. Be3 Bf8 11. d4 exd4 12. Nxd4 {[#]} Nb4 $146 ({Predecessor:} 12... Ne5 13. Bb3 c6 14. f4 Ng6 15. Qd3 Bd7 16. e5 dxe5 17. Qxg6 exd4 18. Bxf7+ Kh8 19. Bxd4 Rxe1+ 20. Rxe1 {½-½ (61) Grischuk,A (2773)-Le Goff,R (2288) Chess.com INT 2021}) 13. Bb3 c6 14. Bf4 Bd7 15. Qd2 Rc8 16. Nf3 Be6 17. Bxe6 fxe6 {[%cal Bf7e6,Be6e5][%mdl 32]} 18. Rad1 e5 19. Bg3 Qc7 20. Bh4 Nh5 21. Ne2 Qf7 22. Nh2 Qc4 $1 {[%csl LRc2,LRe4]} 23. Nc3 d5 $1 24. b3 Qd4 25. Nf3 Qxd2 26. Rxd2 {[%cal Re4d5]} g5 ({Black should try} 26... d4 $17 27. Ne2 Na6) 27. Bg3 $15 Nxg3 28. fxg3 {[%cal Re4d5]} d4 29. Nd1 {[%cal Bc3d1,Bd1e3,Be3d5,Bd5c7][%mdl 32]} Na6 {And now ...Bb4 would win.} 30. Rde2 d3 $36 {[%mdl 2048] Black is pushing.} 31. cxd3 Nc5 (31... Bb4 $5 {[%cal Rb4e1]} 32. Rf1 Nc5 $11) 32. Ne3 b5 33. axb5 ({White should play} 33. Ng4 $11 Kg7 34. Rf1 (34. Ngxe5 Bd6 $11) (34. Nfxe5 h5 $11) 34... Nxb3 35. Ra2 (35. Ngxe5 Bd6 $11) (35. Nfxe5 Bc5+ 36. Kh2 Re7 $11)) 33... cxb5 34. Rb1 Nxd3 35. Nd5 Re6 {To avoid Nf6+} 36. Ra2 (36. Kh2 $15) 36... Ra6 $1 $17 37. Raa1 Nc5 (37... a4 $17 {Strongly threatening ...a3.} 38. Rd1 Nb4 39. bxa4 (39. Nxe5 a3 $17) 39... bxa4 40. Nxe5 a3 41. Nxb4 Bxb4) 38. Rc1 (38. Nxe5 Nxe4 39. Ng4 Nxg3 $17) (38. b4 $1 $11 Nxe4 39. bxa5) 38... Rd8 39. Nc7 $2 {[%mdl 8192]} (39. Rd1 $17 {is a better defense.} Bd6 40. Nd2) 39... Ra7 $1 $19 40. Nxb5 Rb7 41. Nc3 (41. Rxa5 Nxb3 42. Nc7 Nxc1 $19) 41... Nxb3 42. Rab1 (42. Rcb1 $142 Bb4 43. Nd5) 42... Rb4 $2 (42... Rc8 $19 {and Black stays clearly on top.} 43. Kf1 (43. Rc2 $2 Bc5+ 44. Kf1 Bd4 $19) 43... Nxc1 44. Rxb7 Rxc3) 43. Rf1 $17 Nd2 $1 {Black is more active.} 44. Nxd2 Rxd2 45. Nd5 Rxb1 ({And not} 45... Bc5+ 46. Kh2 Rxb1 47. Rxb1 $17) 46. Rxb1 {[%mdl 4096] Endgame KRB-KRN} a4 47. Rb7 {White wants to mate with Nf6+.} Bc5+ $1 48. Kh2 Kf8 $2 (48... Bf2 $1 $19 {aiming for ...a3.} 49. Rd7 (49. Nf6+ $2 Kf8 $19) 49... Kf8 50. Rd8+ Kf7 51. Rd7+ Ke6) 49. Nf6 $2 {[%mdl 8192]} (49. Nb6 $1 $11 {and White has nothing to worry.}) 49... Bd4 $19 50. Nh7+ Ke8 {White must now prevent ...a3.} 51. Rb8+ Ke7 52. Ra8 Ra2 53. Ra6 a3 54. Nf6 Ra1 $2 (54... Kf7 $19 {Threatens to win with ...Re2.} 55. Nh5 Ra1 56. Rf6+ Ke7) 55. h4 $1 $11 a2 {With the idea ...Kd8.} 56. Nd5+ (56. h5 $11) 56... Kd7 $1 $17 57. hxg5 (57. h5 $142) 57... hxg5 58. g4 Bg1+ 59. Kh3 {[#]} Bc5 ({Better is} 59... Be3 $1 $17 {[%mdl 512]} 60. Kg3 (60. Nxe3 Rh1+) 60... Bf4+ 61. Kf2 Bd2) 60. Kh2 {To avoid Rh1+} (60. Kg3 $15 {deserves consideration.}) 60... Bg1+ 61. Kh3 $1 Be3 62. Kh2 $2 {[%mdl 8192] [#] To avoid Rh1+} (62. Nxe3 $17 {was the crucial defense.} Rh1+ 63. Kg3) 62... Bd2 $1 $19 63. g3 {[#] Prevents Bf4.} Kc8 $1 64. Kg2 Kb7 65. Ra3 Kc6 {Hoping for ...Kb5.} 66. Kf2 Kc5 67. Ra4 Kb5 68. Ra8 Ba5 69. Rb8+ Ka4 {Weighted Error Value: White=0.34/Black=0.24 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.2"]
[White "Nepomniachtchi, Ian"]
[Black "Abdusattorov, Nodirbek"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2773"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,95,25,14,17,26,24,20,18,16,11,16,12,13,10,12,14,46,38,45,54,42,27,116,121,193,189,224,247,240,241,204,100,251,177,333,310,327,306,310,243,232,235,345,168,178,173,286,285,335,314,498,389,875,576,822,776,720,803,785,776,1040,1058,1002,1057,1494,1076,952,916,2046,1961,6639,7254,3572,2058,29978,29979,29978,8722,29972,29973,7142,6149,3110,-274]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. h3 d5 7. exd5 Nxd5 8. Nbd2 {C24: Bishop's Opening: 2...Nf6.} Be6 9. Ne4 Bb6 {[#]} 10. a4 $146 {[%cal Ba2a4,Ba4a5][%mdl 32] The position is equal.} ({Predecessor:} 10. Nfg5 Bf5 11. Ng3 Bg6 12. a3 Kh8 13. Qf3 Nf6 14. Be3 Nd4 15. Bxd4 Qxd4 16. c3 Qh4 17. N5e4 Nxe4 18. Nxe4 f5 19. Qg3 Qh6 20. Ng5 f4 21. Qg4 Bf5 {1-0 (21) Acs,G (2144)-Rzeszowski,D (1932) Katowice 2017}) 10... f6 {Prevents Neg5.} 11. b4 a6 (11... Ncxb4 $2 12. a5 $18) 12. a5 Ba7 13. Bd2 Kh8 14. Re1 Nce7 15. Nc5 $36 {[%mdl 2048] White is more active.} Bxc5 16. bxc5 Bf7 17. Rb1 Qc8 (17... Nc6 $11) 18. d4 $16 Bh5 {[#]} (18... exd4 $16 19. Nxd4 Ng6) 19. g4 $1 $18 (19. dxe5 $6 fxe5 20. Rb3 (20. Rxe5 Bxf3 21. gxf3 c6 $16) 20... Nf6 $16) 19... Bxg4 20. hxg4 Qxg4+ 21. Kh1 Rad8 22. Rg1 (22. Bd3 $18) 22... Qf5 $2 {A mistake that costs the game.} (22... Qh3+ $16 23. Nh2 Nc3 24. Bxc3 Qxc3) 23. Qe2 Nc6 $2 (23... Ng6) 24. Rg2 (24. Rxb7 $2 Nxd4 25. Qd3 Qxf3+ 26. Qxf3 Nxf3 $19) 24... Nf4 25. Bxf4 Qxf4 26. d5 (26. Rxb7 Nxa5 27. Rxc7 Nxc4 $11) 26... e4 27. Nh2 Ne5 (27... Nxa5 $142 28. Ba2 Rfe8) 28. Bb3 (28. Rxb7 $142 Qc1+ 29. Nf1 Qh6+ 30. Nh2 Qc1+ 31. Nf1 Qh6+ 32. Nh2 Qc1+) 28... Nf3 29. Qe3 Qh4 (29... Qxe3 {was necessary.} 30. fxe3 Ne5) 30. c4 f5 31. Bd1 (31. Qc3 Rd7 32. Bd1 Nxh2 33. Rxh2 Qe7 $18) 31... Rfe8 (31... Ne5 $142 32. Rxb7 Rf7) 32. Qc3 {[%csl Gg2][%cal Rc3g7]} Rd7 (32... Ne5 33. Rxb7 Re7) 33. Rxb7 {aiming for Ba4.} e3 34. fxe3 {[%cal Bf2e3,Be3e4][%mdl 32]} Nxh2 35. Rxh2 Qe4+ 36. Rg2 {Ba4 is the strong threat.} Qh4+ 37. Kg1 {Threatens to win with Ba4.} f4 38. e4 Qe7 39. c6 Qc5+ 40. Kh1 {[%cal Bg1h1,Bh1g2,Bg2h3][%mdl 32]} Rf7 41. Bh5 f3 42. Bxf7 {[%csl Gg2][%cal Rc3g7]} fxg2+ 43. Kxg2 Rf8 44. Rxc7 Qd6 45. Qg3 (45. Rb7 $142 Qf4 46. Qf3 Qxf3+ 47. Kxf3 g5 48. Kg3 Rd8 49. Be6 h6 50. Kg4) 45... Qh6 46. Rb7 Qd2+ 47. Kh3 {Rb8 would kill now.} Qe2 {[#]} 48. Qxg7+ $3 {[%mdl 33280] Weighted Error Value: White=0.32/Black=0.51. Loss on time!?} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.3"]
[White "Kosteniuk, Alexandra"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2516"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,60,32,12,41,27,26,-26,-25,-33,0,-24,-25,-24,-25,-20,-23,-16,-9,-16,-11,-11,0,-29,-20,-28,-14,-45,-27,-40,0,-36,-35,-82,-93,-149,-143,-268,-271,-1017,-988,-988,-741,-901,-885,-883,-902,-879,-884,-822,-795]} 1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. d4 Nc6 6. Bb5 Bd6 7. O-O Nf6 {B22: Sicilian: 2 c3.} 8. dxc5 {seems to push 8.Re1+ aside.} Bxc5 9. Nd4 (9. Bg5 $142) 9... O-O $11 {Black has an edge.} 10. Be3 {[#]} Qd6 $146 ({Predecessor:} 10... Ng4 11. Nxc6 Qc7 12. Ne7+ Bxe7 13. g3 Nxe3 14. fxe3 Qc5 15. Qd3 Bg5 16. Re1 g6 {½-½ (62) Langrock,H (2395)-Vagner,T (2237) Teplice 2008}) 11. h3 {To avoid Ng4} Bb6 12. Nd2 Nxd4 13. cxd4 Bf5 14. Nf3 Rac8 15. Bd3 Ne4 16. Qb3 Rce8 17. Ne5 f6 18. Nf3 g5 19. Rfc1 h5 20. Nd2 Kg7 21. Bxe4 Bxe4 ({Much weaker is} 21... dxe4 22. Nc4 Qd5 23. Qa3 $14) 22. Nxe4 (22. a4 $15) 22... Rxe4 $17 23. a4 {[#]} ({White should play} 23. Qc3) 23... Rf7 $1 {Black is more active.} 24. Rc8 {[#]} (24. Qa3 $17 Qxa3 25. bxa3) 24... Bc7 $1 $19 (24... Bxd4 25. Bxd4 Rxd4 26. Qe3 $17) 25. Rc1 $2 (25. Rxc7 Rxc7 26. Rf1) 25... Qh2+ {Black is clearly winning.} 26. Kf1 Bf4 {Strongly threatening ...Qh1+.} 27. Qxd5 Qh1+ ({Weaker is} 27... Bxe3 28. Qxe4 Bxc1 29. Qe8 $11) 28. Ke2 Qxg2 {( -> ...Rxe3+)} 29. Kd1 Qf3+ 30. Kc2 Rxe3 {Weighted Error Value: White=0.61/Black=0.22 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.4"]
[White "Keymer, Vincent"]
[Black "Giri, Anish"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2664"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,69,7,18,6,10,0,0,15,12,0,0,5,19,16,37,0,13,18,0,13,9,4,7,0,0,0,56,51,57,50,50,56,113,113,327,334,338,331,338,338,338,337,322,312,427,222,541,537,535,526,505,506,29995,29996,29996,29997,29997,29998,29998,29999]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Qc2 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} Re8 8. Bd2 a6 9. a3 {The position is equal.} Bd6 10. h3 Bd7 11. Rd1 h6 12. c5 Bf8 {[#]} 13. Be2 $146 ({Predecessor:} 13. Ne5 Nxe5 14. dxe5 Ne4 15. Nxe4 dxe4 16. Ba5 Qc8 17. g4 Bc6 18. Bg2 Rd8 19. Rxd8 Qxd8 20. Bxe4 Bxe4 21. Qxe4 Bxc5 22. Qxb7 {1-0 (93) So,W (2767)-Vidit,S (2718) Khanty-Mansiysk 2019}) 13... e5 14. O-O Qc8 15. Bc1 Bf5 16. Qb3 e4 17. Nh4 Be6 {[%cal Of8c5]} 18. f3 Ne7 (18... exf3 $11 19. Nxf3 Bxc5 $1) 19. fxe4 $1 $14 Nxe4 20. Nxe4 dxe4 21. Bc4 (21. d5 Nxd5 22. Qc2 (22. Rxd5 $2 c6 $19) 22... c6 23. Qxe4 Qc7 $17) 21... c6 (21... Bxc4 $1 $14 22. Qxc4 Qe6) 22. Rxf7 $16 {White is much more active.} Kxf7 {A mistake that costs the game.} (22... Nd5 $16 {was worth a try.} 23. Rf2 (23. Rxb7 Kh7 $16) 23... Be7) 23. Rf1+ $1 $18 Nf5 24. Rxf5+ $1 Kg8 25. Ng6 $1 {[%cal Bh4g6,Bg6e5,Be5f7][%mdl 32]} Bxc4 26. Qxc4+ Kh7 27. Qf7 {g4 is the strong threat.} Be7 28. b4 ({Inferior is} 28. Nxe7 Rxe7 $1 29. Qxe7 Qxf5 $15) (28. Nf4 $142 Kh8 29. h4) 28... Qd8 $2 (28... Bg5 {is a better chance.} 29. h4 (29. Ne5 Qe6 $11) (29. Rxg5 hxg5 30. d5 Rg8 $16) 29... Re6) 29. Ne5 {Black must now prevent Qg6+.} Rf8 30. Qg6+ Kg8 {[#]} 31. Nf7 $1 Qe8 (31... Rxf7 $18 32. Rxf7 Bf6) 32. Nxh6+ $1 {White mates.} Kh8 {[#]} 33. Nf7+ $1 Kg8 {[#]} 34. Rh5 $1 {[%csl Gf7][%cal Rh5h8]} Rxf7 35. Qh7+ {Weighted Error Value: White=0.10 (very precise) /Black=0.54} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.5"]
[White "Niemann, Hans Moke"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2642"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,143,45,86,22,70,45,46,38,37,4,24,27,17,25,22,11,58,58,66,68,89,92,96,91,95,97,93,92,127,124,126,116,120,114,118,16,13,10,10,9,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-7,-6,-9,-6,-6,-6,-41,-7,-7,-7,-12,0,-6,-8,-20,0,0,0,0,0,-29,-29,-29,0,-29,-29,-29,0,-29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. g3 g6 3. d4 d6 4. Bg2 Bg7 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Nc3 c6 8. Nf3 h6 {[#]} (8... Kc7 $14 {is superior.}) 9. Nd2 $146 {A41: 1 d4 d6: Tartakower System and Modern Defence.} ({White should try} 9. O-O $1 $16) ({Predecessor:} 9. Be3 Kc7 10. O-O-O Na6 11. b4 Be6 12. b5 Nb8 13. Bc5 Nd7 14. Bd6+ Kb6 15. bxc6 bxc6 16. Kc2 Bxc4 17. Nd2 Bb5 18. a4 Rc8 19. Rb1 a6 20. Nc4+ Ka7 21. axb5 cxb5 22. Nxb5+ axb5 23. Ra1# {1-0 (23) Schreiner,P (2480)-Volkmann,F (2402) Austria 2018}) 9... Kc7 (9... Be6 $11) 10. b3 Nf6 11. Bb2 {White is slightly better.} Rd8 12. O-O-O Bf5 13. h3 Na6 14. g4 Be6 15. Nf3 Ne8 (15... Rxd1+ $11 {deserves consideration.} 16. Rxd1 Nd7) 16. Ne4 $36 {[%mdl 2048] White has good play.} f6 17. Nh4 Bf7 (17... f5 18. Ng3 $16) 18. Ba3 Rxd1+ 19. Rxd1 Rd8 20. Rxd8 Kxd8 21. Ng3 Nac7 {[#]} 22. Be4 $1 g5 23. Nhf5 Ne6 24. Be7+ Kd7 25. Nxg7 {White is much more active.} (25. e3 $16) 25... N6xg7 $11 26. Bc5 b6 27. Bf8 h5 28. e3 h4 29. Nf1 Ne6 30. Ba3 Nd6 31. Nd2 Kc7 32. Bd3 Be8 33. Bxd6+ Kxd6 {[%mdl 4096] Endgame KBN-KBN} 34. Ne4+ Ke7 35. Nc3 Nc5 36. Bc2 a5 37. a3 Bf7 38. Kb2 Be6 (38... b5 $5) 39. f3 Kd7 40. Nd1 Nb7 {[%cal Oa5a4]} 41. Kc3 Nd6 42. Bd3 b5 43. c5 Ne8 44. Nf2 Nc7 45. Be4 Bd5 46. Nd3 Na6 47. Bf5+ Ke7 48. Be4 Nb8 49. b4 a4 50. Bxd5 cxd5 {KN-KN} 51. Nc1 Nc6 52. Ne2 {Inhibits d4+.} Ke6 53. Kd3 e4+ 54. fxe4 Ne5+ 55. Kd2 Nc4+ 56. Kd3 Ne5+ 57. Kc2 dxe4 58. Nd4+ Kd7 59. Kd1 ({Wrong is} 59. Nxb5 $2 f5 60. c6+ (60. gxf5 $2 g4 $19) 60... Nxc6 61. gxf5 g4 $19) 59... Nc4 $1 {[%csl LRa3,LRe3]} 60. Nxb5 (60. Nc2 $11) 60... Nxe3+ (60... f5 $1 $15 61. gxf5 g4) 61. Ke2 {The position is equal.} Nd5 62. Nd6 Nxb4 63. Nxe4 ({Don't go for} 63. axb4 $2 a3 64. Nxe4 a2 $19) 63... Nd5 64. Kd3 Kc6 {aiming for ...Nf4+.} 65. Kc4 Nf4 66. Nxf6 Nxh3 67. Ne4 {Prevents Nf2.} Ng1 {Hoping for ...h3.} 68. Nxg5 h3 69. Nxh3 Nxh3 70. Kb4 Ng5 71. Kxa4 Kxc5 72. Kb3 {Weighted Error Value: White=0.11 (very precise) /Black=0.09 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.6"]
[White "Praggnanandhaa R"]
[Black "Aronian, Levon"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2612"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "159"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,159,6,10,27,23,38,14,14,10,22,8,11,0,0,0,4,3,12,0,0,0,18,26,14,18,39,36,43,37,44,45,43,38,53,37,47,52,50,61,89,82,97,86,133,114,182,185,187,194,169,164,159,135,203,93,407,410,385,387,633,688,750,691,1399,825,1320,818,3262,3005,29986,1287,29988,541,538,538,531,531,528,510,475,168,333,333,401,333,617,649,497,727,636,495,617,490,593,502,663,486,650,620,596,593,573,537,29962,29958,29958,29961,29937,3516,5369,1876,4669,4669,956,808,1642,1747,29971,29972,29973,29974,29978,29946,29944,29948,29952,2986,29953,12797,12134,4644,29967,29968,29970,29970,29974,29971,29975,29976,29976,29977,29977,29978,29982,29983,29983,29984,29982,29983]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 Re8 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. a3 Bf8 9. Be2 dxc4 {The position is equal.} 10. Bxc4 {[#]} h6 $146 ({Predecessor:} 10... a6 11. Qc2 b5 12. Ba2 Bb7 13. Rd1 b4 14. Na4 bxa3 15. bxa3 Ne7 16. Nc5 Bd5 {0-1 (53) Pavlidou,E (2203)-Pershin,D (2388) Chess.com INT 2021}) 11. Rd1 e5 {[%cal Re5d4]} 12. d5 Nb8 13. e4 Bg4 14. Be2 Nbd7 {[%cal Oc7c6]} 15. h3 Bh5 16. Be3 Bc5 17. Bxc5 Nxc5 18. Qc4 b6 19. O-O Bg6 {[%cal Rf6e4]} 20. Nd2 a6 21. Bf3 Qe7 22. Rc1 Red8 {[%cal Oc7c6]} 23. Qe2 a5 24. b3 Ne8 25. Nb5 f6 26. Bg4 Bf7 {[%cal Oc7c6]} 27. Rc3 g6 ({Better is} 27... Kh8) 28. h4 $1 $16 {White is more active.} Ng7 {Inhibits h5.} (28... h5 $16 {was worth a try.} 29. Bh3 c6 30. dxc6 Nc7) 29. h5 $18 gxh5 {[#]} 30. Bh3 Be8 31. b4 axb4 32. axb4 Na6 {[#]} (32... Bxb5 $16 33. Qxb5 Nb7) 33. Rfc1 (33. Rb1 $1 $18) 33... Qxb4 $2 {[%mdl 8192] Black cannot hold the game after this.} (33... Bxb5 $16 {is more resistant.} 34. Qxb5 Qxb4 35. Qxb4 Nxb4) 34. Nxc7 Nxc7 35. Rxc7 Ra2 $2 {[#]} (35... Ra3 36. Rb1 Qd6 37. Rxg7+ Kxg7) 36. Qf3 $1 Qf8 (36... Qxd2 37. Qxf6) 37. Nc4 Ra4 38. Ne3 {To avoid f5} Bg6 39. Bf5 Nxf5 40. Nxf5 {Intending Ne7+ and mate.} (40. exf5 Be8 41. Rb7 Kh8 $18) 40... Kh8 41. d6 (41. Nh4 $142 Be8 42. Qf5 Bd7 43. Rxd7 Rxd7 44. Qxd7 Qg8 45. Rc8 Ra1+ 46. Kh2) 41... b5 42. Nxh6 Rxd6 43. Rc8 Rd8 {[#]} 44. Nf7+ $1 {[%mdl 576] Deflection} Qxf7 45. Rxd8+ Kg7 46. Qd1 $2 (46. Qh3 Rd4 47. Rxd4 exd4 48. Qg3) 46... Ra7 {Inhibits Rd7.} (46... Rxe4 {might work better.} 47. Rcc8 Bf5) 47. f3 b4 48. Rb8 Rb7 $2 (48... Qd7 49. Rxb4 Qxd1+ 50. Rxd1 Ra6 51. Rb7+ Kh6) 49. Qd8 {[%csl Gb8][%cal Rd8h8]} Rxb8 50. Qxb8 {[%mdl 4096] Endgame KQR-KQB} Qb3 51. Qa7+ Bf7 52. Rc7 Qe6 53. Rb7 {Black must now prevent Kh2.} b3 54. Qc5 Qe8 55. Qc7 {Rxb3 is the strong threat.} Kg6 56. Kh2 Qf8 57. Rb6 {And now Qxe5 would win.} Kg7 58. Rb8 Qa3 59. Rb7 Qf8 60. Rb6 (60. Rxb3 $142 Kg6 61. Rb7 h4 62. Qd7 h3 63. Qg4+ Kh6 64. Qxh3+ Kg6 65. f4 exf4 66. Qg4+ Kh6 67. Qxf4+ Kg7 68. e5 fxe5 69. Qxe5+ Kh7 70. Qh5+ Kg8 71. Qg5+ Qg7 72. Rb8+ Kh7 73. Qh4+ Kg6 74. Rb6+ Kf5 75. Qf2+ Ke4 76. Qe2+ Kd5 77. Qd3+ Qd4 78. Rb5+ Kc6 79. Qxd4) 60... Qh8 61. Qe7 (61. Rxb3 $142 Kg6 62. Rb7) 61... Qh6 62. Rb7 Qg6 63. g3 {[%cal Bg2g3,Bg3g4][%mdl 32]} ({Not} 63. Rb8 Qg5 $16) 63... h4 64. g4 b2 65. Kh3 Kh6 66. Rxb2 Bc4 67. Qb4 Bf1+ 68. Kxh4 Qg5+ 69. Kg3 {White threatens Qf8+ and mate.} Qf4+ 70. Kf2 {Threatening mate with Qf8+.} Bc4 71. Qd2 ({Weaker is} 71. g5+ Kg6 $16) 71... Qxd2+ 72. Rxd2 {KR-KB. White mates.} Kg5 73. Kg3 Bb3 74. Rd7 Kg6 75. f4 exf4+ 76. Kxf4 Be6 77. Rb7 Bc8 78. Re7 Ba6 79. Re6 Bc8 80. Rc6 {Weighted Error Value: White=0.33/Black=0.81} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.7"]
[White "Le, Quang Liem"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2709"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,95,26,19,18,29,22,35,29,30,27,24,20,22,22,26,29,26,34,37,31,34,35,35,37,35,21,41,37,32,31,37,46,46,48,66,66,74,67,68,68,100,74,125,81,93,85,103,90,169,172,169,141,150,150,165,165,150,151,160,159,160,162,184,196,224,219,244,231,210,175,251,251,449,474,459,437,713,706,949,947,906,906,858,821,2965,2783,12811,5734]} 1. d4 d5 2. c4 e6 3. Nf3 a6 4. cxd5 exd5 5. Nc3 Nf6 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. e3 Nbd7 8. Bd3 {White is slightly better.} Bd6 9. h3 c6 10. O-O Qc7 11. Qd2 O-O 12. Rfe1 h6 13. Bf4 Rfe8 14. Rac1 Rad8 {[#]} 15. b3 $146 ({Predecessor:} 15. a3 Nb6 16. Ne5 Nfd7 17. Nxd7 Rxd7 18. Bxd6 Qxd6 19. Ne2 Rde7 20. Nf4 Bc8 21. b4 {0-1 (58) Gunina,V (2471)-Sarana,A (2666) Kazan 2022}) 15... Qb8 16. Bxd6 Qxd6 17. Qb2 g6 18. Nd2 Nh5 19. Na4 Ng7 20. b4 Nf6 21. Nc5 Re7 22. a4 Bf5 23. b5 axb5 24. axb5 Rb8 25. Rb1 Ree8 {[#]} (25... Bxd3 $142 26. Nxd3 cxb5) 26. Rec1 (26. Bxf5 $142 $1 gxf5 27. Nf3) 26... Bxd3 27. Nxd3 Nf5 28. Qb4 Ne4 (28... Qxb4 $16 29. Rxb4 cxb5) 29. Nxe4 $18 dxe4 30. Ne5 Qxb4 31. Rxb4 {[#] Strongly threatening Nd7.} cxb5 32. Nd7 (32. Rxb5 Re7 $16) 32... Rec8 33. Rcb1 {White is more active.} Nd6 34. Nxb8 Rxb8 $16 {[%mdl 4096] Endgame KRR-KRN} 35. Rc1 Kf8 36. f3 Re8 37. Kf2 exf3 38. gxf3 ({Don't play} 38. Kxf3 Kg7 39. Rc7 Kf6) 38... Ra8 39. Rc2 {To avoid Ra2} Ra3 (39... Ke7 $142 40. Rb3 Ra4 41. Rc7+ Kd8) 40. e4 $18 {[%cal Be3e4,Be4e5][%mdl 32]} g5 $2 (40... Ra5 {keeps fighting.} 41. Rc5 b6) 41. e5 {White is clearly winning.} Nf5 42. d5 Rd3 (42... Ke8 $142 43. d6 Ra5) 43. Rxb5 Nd4 44. Rc8+ Kg7 45. Rxb7 {Black must now prevent e6.} Rxf3+ 46. Kg2 {Threatens to win with e6.} Kg6 47. e6 fxe6 48. dxe6 {Weighted Error Value: White=0.05 (flawless) /Black=0.20 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "5.8"]
[White "Hansen, Eric"]
[Black "Ding, Liren"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2606"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "148"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,148,11,18,0,14,12,1,0,0,0,0,0,0,0,2,-24,-35,-15,-8,-20,-33,-25,0,0,0,0,0,-37,-23,-62,-9,-35,-30,-60,-8,-33,0,-58,0,-19,0,-41,0,0,-3,-5,75,-20,-25,-40,-62,-60,-41,-30,0,-1,87,93,91,89,76,81,111,87,88,75,71,81,108,109,115,104,129,129,1456,126,386,129,665,665,676,676,676,669,661,486,1058,1025,969,914,1286,1331,1253,1021,1366,1266,1217,1210,1020,983,909,836,2969,2590,1710,1046,1441,1329,1000,383,383,8,8,0,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c3 Ngf6 5. Qe2 a6 6. Ba4 b5 7. Bc2 Bb7 8. O-O e6 9. d4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Be7 10. Rd1 O-O 11. Nbd2 Qc7 12. Nf1 {[#]} Rfc8 $146 ({Predecessor:} 12... Rac8 13. Bd3 Rfd8 14. Ng3 Bf8 15. a4 e5 16. axb5 c4 17. Bc2 axb5 18. Bd2 Ra8 {½-½ (31) Steffens,O (1931)-Schimnatkowski,L (2077) Willingen 2018}) 13. Bd3 a5 14. Ng3 b4 15. c4 cxd4 16. Nxd4 Nc5 17. b3 a4 {White must now prevent ...axb3.} 18. Rb1 Ra6 19. Bc2 axb3 20. axb3 Ra2 {[%cal Oc5e4]} 21. Bb2 Qb6 22. h3 h6 (22... Bf8 $15) 23. Qe3 Rd8 24. Nde2 Qc6 (24... Nfd7 $15) 25. Nd4 Qb6 26. Nde2 Bc6 (26... Nfd7 $15) 27. Nf4 (27. Nc1 $5 {[%cal Rc1a2]} Raa8 28. e5 dxe5 29. Rxd8+ Qxd8 30. Bxe5 $11) 27... Qb7 {[%cal Rc5e4]} 28. Re1 (28. Nd5 $11 {is more appropriate.} exd5 29. exd5) 28... Re8 29. Nd5 exd5 30. exd5 {[#]} Bxd5 31. cxd5 (31. Bxf6 $16 Be6 32. Bb2 (32. Rb2 Rxb2 33. Bxb2 Bf8 $16)) 31... Bf8 $11 (31... Qxd5 $2 32. Bxf6 Rxc2 33. Bxe7 $18) 32. Qc1 Rxe1+ 33. Qxe1 Nxd5 {Pair of Knights!} 34. Qd2 {To avoid Nf4} g6 35. Ne4 {[%cal Od2d5] Strongly threatening Qxd5!} Rxb2 36. Rxb2 $16 Nc3 {[#]} 37. Nxc5 ({But not} 37. Nxd6 Qe7 $11) (37. Nxc3 $2 bxc3 38. Qxc3 Bg7 $19) 37... dxc5 38. Bd3 Bg7 39. Rc2 h5 40. Bc4 Bd4 41. Qf4 Qe7 42. g3 Kg7 43. Kg2 f5 44. h4 Qe1 $2 {[%mdl 8192] [#]} (44... Qd8 $16 45. Kh2 Kh7) 45. Qf3 $2 (45. Qc7+ $1 $18 Kh8 46. Qf7 Qe4+ 47. f3) 45... Ne4 $2 {[%mdl 8192]} (45... Kh6 $16 46. Qf4+ Kh7 47. Qc7+ Bg7) 46. Bd3 $2 {Chess con chili.} (46. Ra2 $18 {and White stays clearly on top. Qf4 is the strong threat.} Kh7 47. Qf4) 46... Nd2 $2 {[%mdl 8192]} (46... Nc3 $16 47. Bc4 Kh7) 47. Qf4 $18 ({Inferior is} 47. Qb7+ Kh6 48. Qb8 Qxf2+ 49. Kh3 Qe3 50. Qf8+ Bg7 $11) 47... Ne4 48. Bxe4 Qxe4+ 49. Qxe4 fxe4 {[%mdl 4096] Endgame KR-KB} 50. Re2 e3 (50... Kf6 $142 51. Rxe4 Kf5) 51. fxe3 Bc3 52. Kf3 c4 53. bxc4 b3 54. Rf2 {And now Ke4 would win.} b2 55. Rf1 {Hoping for Ke4.} Kf6 56. Ke4+ Ke6 57. Kd3 Be5 58. Kc2 Bxg3 59. Rg1 Bxh4 60. Rxg6+ Kf5 61. Rg8 Be7 62. Re8 $2 (62. e4+ Kf4 63. Rg7 (63. Kxb2 h4 $16)) 62... Bd6 63. Rd8 $2 ({White should play} 63. e4+ $18 Kf4 64. Rh8 (64. Kxb2 Be5+ 65. Kc2 Kxe4 $18)) 63... Be5 $1 $11 {The position is equal.} 64. c5 h4 65. Rf8+ Ke4 66. Rf7 h3 67. Rh7 h2 68. c6 Kxe3 69. Rxh2 Bxh2 70. Kxb2 {KB-KP} Bc7 71. Kc3 Ke4 72. Kc2 Ke5 73. Kd2 Kd5 74. Kc2 Kxc6 {Black escapes into a draw.  Weighted Error Value: White=0.36/Black=0.38} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.1"]
[White "Artemiev, Vladislav"]
[Black "Ding, Liren"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2700"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "150"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,150,-9,-2,-15,0,-8,0,-4,0,-9,0,0,-15,-20,1,-7,-7,-25,-16,-20,0,0,14,-11,-16,-19,-20,-135,-132,-140,-39,-56,-2,-15,0,-14,-8,-33,-48,-40,-43,-50,-57,-60,-66,-72,-41,-146,-135,-181,-133,-138,-43,-154,-137,-132,-135,-137,-135,-135,-128,-135,-136,-189,-185,-180,-187,-191,-182,-196,-202,-227,-224,-232,-210,-198,-164,-200,-162,-175,-171,-171,-170,-281,-272,-266,-158,-127,-122,-148,-86,-245,-269,-273,-119,-481,-403,-380,-264,-255,-252,-271,-270,-241,-127,-126,-81,-1450,-143,-143,-141,-1062,-1056,-5113,-5113,-1574,-86,-5112,-5112,-4806,-4791,-1377,-1047,-5113,-5113,-5112,-5112,-5112,-5112,-4762,-3872,-2098,-1888,-1783,-1463,-1331,-1321,-1253,-920,-29986,-29987,-29987,-29988]} 1. c4 e5 2. Nc3 Nf6 3. e3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. Qc2 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} Nxc3 7. dxc3 Bd6 8. Nf3 {The position is equal.} O-O 9. e4 f5 10. Bd3 {[%cal Re4f5]} f4 11. b4 a5 {[%cal Ra5b4]} 12. Bb2 {[#]} Kh8 $146 {[%cal Ra5b4]} ({Predecessor:} 12... Qf6 13. Bc4+ Kh8 14. Rd1 Ne7 15. h4 Bg4 16. Be2 Be6 17. c4 axb4 18. c5 bxa3 {½-½ (88) Wojtaszek,R (2719)-Le,Q (2709) Chess.com INT 2020}) 13. Rd1 Qe7 14. Be2 Be6 15. O-O Rf6 16. Qa4 g5 17. Nxg5 Bd7 {[%cal Oc6d4] aiming for ...Nd4!} 18. b5 {[#]} (18. Qc2 $1 $11 {remains equal.}) 18... Rg8 $1 $17 19. Nf3 {[#]} Nd8 (19... Qg7 $6 20. g3 fxg3 21. fxg3 $11 (21. hxg3 $2 Bc5 $19)) (19... Bh3 $1 $17 {[%cal Rh3g2]} 20. g3 (20. bxc6 Bxg2 21. Qb3 Rfg6) 20... Nd8) 20. Kh1 $15 Bg4 (20... Qg7 21. Rg1 $11) ({Black should play} 20... Rh6 $1 $15 21. c4 Qg7) 21. c4 $1 $11 (21. Qxa5 Rh6 22. Rd3 Qg7 $17) 21... Bxf3 22. Bxf3 (22. gxf3 {leads to mate.} Rh6 23. Bxe5+ Bxe5 24. Rfe1 Qh4 25. Qxa5 Qxh2#) 22... Rh6 23. g3 {To avoid Qh4} fxg3 $40 {[%mdl 128] Black attacks.} 24. fxg3 Rxg3 {[%cal Oh6h2]} 25. Qc2 {[%cal Oc4c5]} Ne6 {[%cal Oe6d4]} 26. c5 $1 Nxc5 27. b6 cxb6 {White must now prevent ...Ne6.} 28. Rf2 (28. Bc1 $1 $15 Rh4 29. Rg1) 28... Rg8 29. Qd2 (29. Bc3 $17) 29... Rhg6 (29... Rf6 $19 30. Rdf1 Rg7) 30. Rg2 $17 Nb3 ({Black should try} 30... Bc7 $17 31. Rxg6 Rxg6) 31. Qe3 (31. Qd5 $15 Nc5 32. Rxg6 Rxg6 33. Bh5) 31... Rxg2 32. Bxg2 {[#] This bishop pair is nice.} Qg7 $1 {[%csl Gg8][%cal Rg7g2]} 33. Qg3 Nd4 34. Qxg7+ Kxg7 35. Bxd4 exd4 36. Rxd4 (36. a4 $17) 36... Bxa3 {[%mdl 4096] Endgame KRB-KRB} 37. e5 Re8 38. Rd7+ Kh6 39. Rxb7 Bc5 ({Not} 39... Rxe5 40. Rxb6+ Kg5 41. Bc6 $17) 40. Be4 Rxe5 41. Rxh7+ Kg5 42. Bc6 Re2 43. Rf7 Ra2 {...a4 is the strong threat.} 44. Rg7+ Kf6 45. Rg4 Kf5 46. Bd7+ (46. Rc4 {was necessary.}) 46... Ke5 $19 47. h4 Kd6 (47... Rd2 $19 48. Be8 Kf5) 48. Be8 Re2 49. Rg6+ Kd5 (49... Kc7 $142 50. Rg7+ Kd8) 50. Bc6+ (50. Bf7+ $17 {was the only chance.} Ke4 51. h5) 50... Kc4 51. h5 Bd4 (51... Re5 $1 $19 {[%cal Re5h5] is more deadly.} 52. h6 Rh5+ 53. Kg2 Bf8) 52. Rg4 $2 {[%mdl 8192]} (52. h6 $17 {nothing else works.}) 52... Re6 53. Bd7 Rd6 54. Be8 b5 55. Rg5 Rb6 56. Kg2 a4 (56... Be3 $1 $19 {[%cal Re3g5]} 57. Rg4+ Kc5) 57. h6 $17 a3 ({Weaker is} 57... Rxh6 58. Rxb5 a3 59. Ra5 $11) (57... Kc3 $142 {Hoping for ...a3.} 58. Bxb5 a3 59. Rg3+ Kb4) 58. h7 $2 {[%mdl 8192]} (58. Bf7+ $17 Kb4 59. Rg4) 58... b4 $2 (58... Rb7 $19 {has better winning chances. Threatens to win with ...a2.} 59. Bc6 Rxh7 60. Bd5+ Kd3) 59. Bf7+ Kc3 60. Rg4 $2 {[%mdl 8192] [#]} (60. Rc5+ $17 Kb2 61. Rc4) 60... Rh6 $1 $19 61. Bg8 {[#]} Rxh7 $3 {[%mdl 512]} 62. Rg3+ (62. Bxh7 a2) 62... Kb2 $2 (62... Kd2 $19 {( -> ...Rg7)} 63. Bxh7 a2 64. Rd3+ Ke2 65. Rxd4 a1=Q 66. Re4+ Kd2) 63. Bxh7 $4 {[%mdl 8192]} (63. Rb3+ $17 Kc2 64. Rxa3) 63... a2 64. Rd3 {[#]} a1=Q $1 65. Rxd4 {KQ-KRB} b3 {Strongly threatening ...Kc1.} 66. Be4 Qe1 67. Kf3 {To avoid Qe2+} Kc3 68. Rd3+ Kc4 69. Rd7 Qh1+ 70. Kf4 Qh2+ 71. Kg4 Qg1+ 72. Kf5 Qc5+ 73. Kg4 b2 74. Rd1 Qe5 75. Bd3+ Kc3 {Weighted Error Value: White=0.53/Black=0.32} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.2"]
[White "Duda, Jan-Krzysztof"]
[Black "Hansen, Eric"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "2760"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,90,29,64,0,18,12,19,10,47,35,35,8,25,32,14,22,20,0,40,0,37,30,40,31,42,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-81,-70,-109,0,-50,-62,-74,0,0,0,0,46,-4,20,-164,-164,-182,-175,-166,-172,-153,0,-64,0,-2147,-1958,-29982,-29983]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 Qc7 13. d5 {is now more promising than 13.Nf1. C97: Closed Ruy Lopez: Chigorin Defence: 11 d4 Qc7, sidelines.} (13. Nf1 $14) 13... c4 $11 14. Nf1 Nb7 15. Ng3 {[#] The position is equal.} g6 $146 ({Predecessor:} 15... Ndc5 16. b4 cxb3 17. axb3 Bd7 18. Bd2 a5 19. Nf5 Bf6 20. Nh2 Qd8 21. Ng4 Bg5 22. Bxg5 Qxg5 {½-½ (32) Kovalev,D (2501)-Pasti,A (2335) Budapest 2021}) 16. Bh6 Re8 17. Qd2 Nbc5 18. b4 cxb3 19. axb3 Nb6 $1 20. h4 Bg4 21. h5 (21. Nh2 $5 {[%cal Rh2g4]} Bd7 22. Bg5 $11) 21... a5 (21... Bxf3 $5 22. gxf3 a5 $11) 22. Nh2 Bd7 23. Qe3 {[%cal Og3f5]} a4 {[#]} 24. Nf5 $1 Bxf5 (24... Nxb3 $2 25. Nxe7+ Rxe7 26. Bxb3 $18) 25. exf5 {Black must now prevent bxa4.} axb3 26. Rxa8 Rxa8 27. Bb1 {[%cal Rh5g6] This bishop pair is nice.} Nc4 28. Qg3 e4 29. fxg6 fxg6 30. hxg6 Bf6 {Active counter play!} 31. Ng4 Bg7 32. gxh7+ (32. Qh4 $11 {keeps the balance.} hxg6 33. Bxg7 Qxg7 34. Nf6+ Kf8 35. Nxe4) 32... Kh8 $17 33. Bg5 (33. Bxg7+ $2 Qxg7 34. Qh4 b2 $17) 33... Rf8 {Prevents Nf6.} (33... b2 $1 $17 {Hoping for ...Na3.} 34. Nh6 Rf8) 34. Qh4 (34. Nf6 $1 $11) 34... Qf7 {[%mdl 1024] aiming for ...b2. Black has compensation.} (34... Na3 $5 {[%cal Rb3b2]}) 35. Be7 $1 Re8 (35... Ra8 $17 {Threatens to win with ...Qg6.} 36. Qg5 b2) 36. Bf6 $11 Rf8 {[%cal Rg7f6]} 37. Bd4 b2 ({But not} 37... Bxd4 38. cxd4 Na4 39. Bxe4 $16) (37... Qf4 $1 $11 {might be stronger.} 38. Bxg7+ Kxg7) 38. Re2 (38. Qg5 $1 $14) 38... Qg6 {[#] Strongly threatening ...Bxd4.} 39. Ne3 $2 (39. Qe7 $1 $11 Kxh7 40. Ne5 $1 dxe5 41. Bxc5) 39... Bxd4 $19 40. cxd4 Nd3 {[%cal Bc5d3,Bd3f4,Bf4e2][%mdl 32]} 41. Qe7 Re8 {Dancing on a razor blade.} 42. Qh4 {[#]} Rf8 $40 {[%mdl 128] Black is up to no good.} (42... Na3 $1 $17 {[%cal Ra3b1]} 43. Bxd3 exd3 44. Rxb2 Nc4) 43. Qe7 $1 $15 Ra8 ({Black should try} 43... Qe8 $15 44. Qh4 (44. Qxe8 $2 Rxe8 45. Kh2 Kxh7 $19) 44... Nf4) 44. Nxc4 $2 {[%mdl 8192]} (44. Qh4 $11) 44... Nf4 $19 {[%csl Gf4][%cal Rg6g2]} 45. Qxe4 Nxe2+ {[%mdl 64] Pin.  Weighted Error Value: White=0.47/Black=0.20 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.3"]
[White "Aronian, Levon"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2772"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,101,21,41,25,53,23,32,22,39,0,0,-34,-32,-18,0,0,0,0,-12,-12,48,37,20,27,58,0,12,-22,0,8,19,13,22,20,27,21,131,-17,100,106,122,114,105,113,112,112,483,174,193,183,183,27,27,-194,-194,-187,-187,-171,-187,-176,-8,-14,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} g6 7. O-O Bg7 8. Re1 O-O 9. a4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} a6 10. Nf1 {[#]} Re8 $146 ({Predecessor:} 10... d5 11. exd5 Nxd5 12. Ne3 Be6 13. Nxd5 Bxd5 14. Bb3 Rb8 15. Bc2 Qd7 16. Be3 Rfe8 17. Nd2 {0-1 (37) Kovacik,E (2102)-Sipos,I (2468) Slovakia 2020}) 11. Bb3 {White is slightly better.} Be6 12. Bc2 d5 13. exd5 Nxd5 14. Bd2 f5 15. Ng3 Qd6 16. Qc1 Qf8 17. b4 Bf7 (17... b5 $1 $11) 18. b5 axb5 19. axb5 Na5 20. Ra4 (20. Rb1 $14) 20... c5 {[%cal Oc5c4]} (20... Nb6 $5 {[%cal Rb6a4]} 21. Ra3 Nd7 $11) 21. h4 c4 {aiming for ...cxd3.} (21... Nb6 $5 {[%cal Rb6a4]} 22. Ra1 c4 23. dxc4 f4 $15) 22. h5 $36 {[%mdl 2048] And now hxg6 would win. White has good play.} (22. dxc4 Nb6 23. Ra1 f4 $15) 22... cxd3 {[#]} 23. hxg6 $1 Bxg6 {Strongly threatening ...f4.} 24. Bxd3 {Nh4 is the strong threat.} e4 25. Nh4 $1 Bh7 {[#]} (25... exd3 $11 26. Nxg6 Qf6) 26. Nhxf5 Nb3 (26... exd3 $2 27. Nxg7 Qxg7 28. Rxe8+ Rxe8 29. Rxa5 $18) (26... Bxf5 $11 {keeps the balance.} 27. Nxf5 exd3 28. Nxg7 Qxg7 29. Rxe8+ Rxe8 30. Rxa5 Re2 31. Bxh6 Qf6 32. Qg5+ Kh7) 27. Qd1 {White is more active.} (27. Rxa8 {is interesting.} Rxa8 28. Qd1 Nxd2 29. Bxe4 Nxc3 30. Qxd2 Nxe4 31. Rxe4 Bxf5 32. Rf4) 27... Nxd2 28. Rxa8 {[%mdl 64] Overworked Piece} Rxa8 29. Bxe4 Nxc3 30. Qxd2 {[%cal Of5e7] Threatens to win with Ne7+!} Rd8 $2 {[%mdl 8192] [#]} (30... Nxe4 $16 31. Rxe4 (31. Qd5+ Qf7 $14) 31... Bxf5 32. Qd5+ Qf7 33. Qxf5 Qxf5 34. Nxf5 Bf8) 31. Qf4 $2 (31. Nxh6+ $1 {[%mdl 512]} Bxh6 32. Bxh7+ Kxh7 33. Qxc3) 31... Re8 32. Re3 Kh8 33. b6 $2 ({Don't play} 33. Bxb7 Rxe3 34. fxe3 Bxf5 $16) (33. Qf3 $18 Nxe4 34. Rxe4 Rxe4 35. Qxe4) 33... Bd4 $11 34. Qc7 $2 ({Reject} 34. Bxb7 Bxe3 35. fxe3 {[#]} Qxf5 $1 36. Qxf5 Bxf5 37. Nxf5 Re6 $17) (34. Rf3 $11 {and White stays safe.} Rxe4 35. Qd2) 34... Nxe4 $19 {[%mdl 64] Overworked Piece} 35. Rxe4 Rxe4 36. Nxe4 Bxf5 {A strong pair of Bishops.} 37. Qxb7 Bxe4 (37... Qe8 $19 38. Ng3 Bc8) 38. Qxe4 $11 {The position is equal.} Qxf2+ 39. Kh2 Bxb6 {( -> ...Bc7+)} 40. Qe8+ Kg7 {[%cal Rf2h4]} 41. Qe7+ Qf7 42. Qxf7+ Kxf7 {[%mdl 4096] Endgame KB-KP} 43. g4 Kg6 44. Kh1 Kg5 45. Kg2 Kh4 46. Kh2 Bc7+ 47. Kg2 Bb8 48. Kh1 Kh3 49. Kg1 Kg3 50. Kh1 Kf2 51. g5 hxg5 {Weighted Error Value: White=0.37/Black=0.39} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.4"]
[White "Mamedyarov, Shakhriyar"]
[Black "Praggnanandhaa R"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2767"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,0,0,0,0,0,0,0,0,0,14,14,23,24,45,54,53,37,32,-10,-8,0,-24,0,22,29,27,40,47,24,120,119,119,50,64,0,205,166,363,302,663,92,269,130,153,177,208,204,241,210,237,204,4863,1914,2147,2136,1235,1273,4877,4886,1694,472,506,514,511,506]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e4 Nxe4 5. Nxe4 dxe4 6. dxc5 {D00: 1 d4 d5: Unusual lines.} Qa5+ 7. c3 Qxc5 8. Qa4+ {The position is equal.} Nc6 9. Qxe4 Bf5 {[#]} 10. Qa4 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 10. Qe3 e6 11. Nf3 Be7 12. Be2 O-O 13. O-O Rfd8 14. Rfd1 h6 15. h3 a6 16. a4 {½-½ (75) Niemann,H (2645)-Blohberger,F (2503) Chess.com INT 2022}) 10... Qb6 11. O-O-O e6 12. Nf3 $1 {[%cal Og2g4]} Be7 13. g4 Bg6 14. h4 (14. Be3 Bc5 15. Qf4 (15. Bxc5 Qxc5 16. Bb5 O-O $15) 15... Bxe3+ 16. Qxe3 Qxe3+ 17. fxe3 Be4 $15) (14. Ne5 $14) 14... Qxf2 $11 15. Rh2 $1 Qxf3 16. Bg2 Bc2 17. Kxc2 (17. Bxf3 $2 Bxa4 18. b3 Bb5 $19) 17... Qf2+ 18. Kb1 {[%mdl 1024] White has compensation.} Qb6 19. Be4 O-O (19... Rd8 $11) 20. Qc2 $36 {[%mdl 2048] Keeping Black busy.} h6 21. g5 (21. Qe2 $16) 21... h5 $1 $14 22. Rd7 ({White should try} 22. Rhh1 $14) 22... Qg1+ $2 (22... Rfd8 $1 $11 {and Black has nothing to worry.} 23. Rhd2 (23. Bxc6 bxc6 24. Rxe7 Kf8 $15) 23... Rxd7 24. Rxd7 Rd8) 23. Bc1 $1 $18 {Strongly threatening Qe2. Active counter play!} Bc5 $2 (23... Rae8 {is a better defense.} 24. Rxb7 Ne5) 24. Rg2 ({Less strong is} 24. Rxb7 Ne5 $16) 24... Qe1 (24... Qf1 25. g6 (25. Rxb7 Be3 $16) 25... f5) 25. Rxb7 $2 (25. Rd1 $18 Qxh4 26. Rh2) 25... Rac8 $2 {Black cannot hold the game after this.} (25... Ne5 $16 {was necessary.}) 26. g6 (26. Rd7 $1 $18 {and the rest is easy.}) 26... f5 {[#]} 27. Re2 {Dancing on a razor blade.} Qxh4 {[#]} (27... Qg3 28. Qd3) 28. Bf3 Qg3 29. Bxh5 Ne5 30. Qd2 {[%cal Ob7g7] Rxg7+! is the strong threat.} Rcd8 $2 {[#]} (30... Rfe8 31. Rxg7+ Kxg7 32. Rxe5 (32. Qh6+ Kf6 $11) 32... Kf6) 31. Rxg7+ $3 {[%mdl 512] White is clearly winning.} Kxg7 32. Qh6+ Kf6 33. g7+ $1 Ke7 34. gxf8=Q+ Rxf8 35. Qg5+ (35. Bg5+ $142 Kd7 36. Qg7+ Kc8 37. Rxe5 Qg1+ 38. Kc2) 35... Qxg5 36. Bxg5+ {A strong pair of Bishops.} Kd6 37. Bf4 {Weighted Error Value: White=0.53/Black=0.42} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.5"]
[White "Giri, Anish"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[ECO "C83"]
[WhiteElo "2772"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,53,21,12,18,20,25,18,14,30,37,103,97,206,122,108,110,103,110,120,118,114,102,108,101,134,72,191,196,647,614,608,593]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Bc2 O-O 11. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} f5 12. exf6 Nxf6 13. Re1 $1 {[%mdl 4] outshines the older 13.Nb3. C83: Open Ruy Lopez: 9 c3 Be7.} Qd6 14. Nf1 {[%cal Oc1f4] [#]} Rae8 $146 ({Predecessor:} 14... Bg4 15. Ng3 g6 16. Bh6 Rf7 17. Qd3 Bxf3 18. gxf3 Bf8 19. Bd2 Ne5 20. Qe2 Nc4 {0-1 (42) Strah,M-Juarez,A (2265) Buenos Aires 1992}) 15. Ng3 {[%cal Oc1f4] The position is equal.} Bg4 {[%cal Oc6e5]} 16. h3 Bc8 (16... Bxf3 $14 17. Qxf3 Ne5) 17. b4 Qd8 {[#]} (17... d4 $16) 18. Bg5 (18. Qd3 $1 $18) 18... d4 $16 19. Nxd4 {White is more active.} Nxd4 20. cxd4 {Strongly threatening Qd3.} Bxb4 {[#]} 21. Bxh7+ $1 {[%mdl 512]} Kxh7 22. Qb1+ Kg8 23. Qxb4 {[%cal Og3e4]} Bb7 {Prevents Ne4.} 24. Re5 (24. f3 $142) 24... Qd6 (24... Rxe5 $16 {was necessary.} 25. dxe5 Qd5) 25. Qb3+ $18 Kh8 $2 (25... Bd5 26. Qe3 Qd7) 26. Bxf6 {[%cal Re5h5]} Rxe5 27. Bxe5 {Weighted Error Value: White=0.12 (very precise) /Black=0.58} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.6"]
[White "Carlsen, Magnus"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2865"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,103,6,9,2,-4,-12,27,23,24,19,31,23,41,11,2,12,5,4,22,20,18,-4,22,15,20,5,20,14,27,31,31,32,40,14,32,39,45,41,105,114,108,121,153,145,182,189,184,210,293,284,267,275,314,325,303,297,559,331,337,337,414,389,468,460,532,408,585,514,580,564,631,637,641,632,643,578,637,628,814,814,782,736,652,605,585,585,562,545,1003,684,4814,714,620,600]} 1. g3 d5 2. Nf3 Bg4 3. Bg2 c6 4. h3 Bh5 5. O-O Nd7 6. d3 Ngf6 7. Qe1 {7.c4 is the fancy move. A07: Réti Opening: New York and Capablanca Systems.} e6 8. e4 Be7 9. e5 {White has an edge.} Ng8 10. d4 Bg6 {[#]} 11. Qe2 $146 ({Predecessor:} 11. Qd1 c5 12. c3 h5 13. h4 Nh6 14. Bxh6 Rxh6 15. c4 Kf8 16. cxd5 exd5 17. Nc3 {½-½ (43) Bivol,A (2374)-Pourkashiyan,A (2305) Moscow 2019}) 11... h5 12. c4 dxc4 13. Qxc4 Nb6 14. Qe2 Nh6 15. Bxh6 Rxh6 16. Nc3 Kf8 17. Rfd1 Bf5 18. Rac1 g5 19. Nh2 Kg7 20. Nf1 Qd7 21. Ne3 Bg6 22. Ne4 Nd5 23. Nc5 Bxc5 24. Rxc5 Ne7 {Black is now going downhill.} (24... Nb6 $14) 25. b4 $16 (25. Qf3 Bf5 $14) 25... a6 26. a4 (26. Qf3 Bh7) 26... Rah8 27. b5 {White is much more active.} (27. Qf3 Bh7 $16) 27... axb5 28. axb5 h4 {[#]} 29. g4 $1 Bh7 30. bxc6 bxc6 {[#]} 31. Qd2 $1 Ng6 32. Bxc6 Qe7 33. Ng2 Rd8 $2 (33... Rb8 34. Rdc1 Rc8) 34. Rdc1 Nf8 35. Bf3 Rg6 36. Ne3 {[%cal Bg2e3,Be3c4,Bc4d6][%mdl 32]} Nd7 37. Ra5 ({Not} 37. Rc7 Nxe5 38. Be4 (38. Rxe7 $2 {is the wrong capture.} Nxf3+ 39. Kh1 Nxd2 $19) (38. dxe5 Qxc7 39. Qb2 Qb8 $17) 38... Qd6 $18) 37... Kh8 38. Nc4 {Black must now prevent Ra7.} f6 (38... Rgg8 $142 39. Qe3 f5) 39. Qe3 {White is clearly winning.} Rg7 40. Ra7 Qf8 41. Nd6 fxe5 42. dxe5 Qf4 43. Qxf4 gxf4 44. Rcc7 Bg8 45. Be4 f3 46. Kh2 Re7 47. Bxf3 Nxe5 48. Rxe7 Nxf3+ 49. Kg2 Ne5 50. Ne4 {Threatening mate with Nf6.} Ng6 51. Nf6 (51. Reb7 $142 Rf8 52. g5 Nf4+ 53. Kh2) 51... Nxe7 $18 52. Rxe7 {Weighted Error Value: White=0.25 (precise) /Black=0.30} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.7"]
[White "Abdusattorov, Nodirbek"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2651"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,97,12,26,17,12,17,11,19,0,0,0,19,20,19,0,14,6,8,0,22,35,83,89,83,95,126,120,142,136,154,158,126,142,155,131,159,88,91,68,83,82,76,72,137,30,89,90,87,93,103,97,327,328,326,341,368,362,401,387,419,420,434,404,553,545,566,577,573,560,910,910,910,886,859,814,822,732,727,677,6090,6083,5106,4133,29984,29984]} 1. c4 c5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nc7 6. d3 e5 7. Be3 Be7 8. Rc1 Nd7 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} 9. Nf3 {[%cal Of3h4]} O-O 10. O-O b6 {The position is equal.} 11. Qa4 Rb8 {[#]} 12. Rfd1 $146 (12. Qxa7 $2 Ra8 13. Nxe5 Rxa7 $19) ({Predecessor:} 12. a3 a5 13. Nb5 {1-0 (13) Aahlad,Y (2220)-Zemlyanov,S (1250) FICGS email 2020}) 12... h6 13. a3 (13. Qxa7 $2 Ra8 14. Nxe5 Rxa7 $19) 13... a5 14. Nb5 Nxb5 15. Qxb5 Bd6 16. Nd2 Re8 17. Nc4 Bc7 (17... Bf8 $14 {might be stronger.}) 18. b4 $16 axb4 19. axb4 f5 20. Bd2 {White is much more active. Black has bad knights.} ({Don't take} 20. bxc5 bxc5 21. Qa4 f4) 20... Kh8 21. Ra1 Nf8 22. bxc5 bxc5 23. Qxc5 Ne6 24. Qd5 Qf6 25. Ra7 (25. Rdb1 $142 {Black must now prevent Rxb8.} e4 26. dxe4) 25... Rd8 26. Qf3 e4 27. Qh5 exd3 28. exd3 {[%cal Oa7c7]} Rxd3 {[#]} (28... Rb3 $142) 29. Re1 ({Resist} 29. Qe8+ Kh7 $14) ({Only move:} 29. Bf1 $1 $16 {[%cal Rf1d3]} Rd7 30. Rc1) 29... Bd7 (29... Rd8 $1 $11 {keeps the balance.}) 30. Bf1 $36 {[%mdl 2048] White is in control.} Rxd2 31. Nxd2 {[%cal Oe1e6,Bc4d2,Bd2f3,Bf3h4][%mdl 32]} Qd4 {[%csl LRa7,LRd2]} 32. Ra2 {Threatens to win with Nf3.} f4 $2 {This costs Black the game.} (32... Ng5 $16 {is a better defense.}) 33. Nf3 $18 Qf6 34. Qd5 {Inhibits Bc6.} Rd8 35. Ra8 Rxa8 36. Qxa8+ Nf8 37. Nh4 fxg3 38. hxg3 {[%cal Oh4g6]} ({Not} 38. Ng6+ Qxg6 39. Qxf8+ Kh7 40. hxg3 {[#]} Bxg3 $1 $14) 38... Bd6 39. Bd3 {Hoping for Ng6+.} g5 40. Ng6+ Kg7 41. Nxf8 Bxf8 42. Qe4 {[%csl Gd3][%cal Re4h7]} Bc5 43. Re2 {Intending Qh7+ and mate.} Bc6 44. Qh7+ Kf8 45. Rc2 Bb6 46. Be4 Bxe4 47. Rc8+ Bd8 48. Qxe4 Kg7 49. Qd5 {Weighted Error Value: White=0.09 (flawless) /Black=0.52} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "6.8"]
[White "Esipenko, Andrey"]
[Black "Nepomniachtchi, Ian"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2714"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,94,29,11,0,0,0,14,5,9,0,0,-12,0,0,10,0,0,-13,0,-17,-12,-27,0,-18,0,4,13,22,29,45,57,56,69,56,76,50,50,0,0,0,0,0,0,0,0,0,0,0,8,8,8,1,4,0,0,0,0,-131,-131,-131,-131,-131,-131,-132,-150,-739,-614,-519,-464,-1880,-1705,-1588,-1419,-6378,-5696,-2558,-2061,-29976,-29975,-29979,-29980,-29983,-29984,-29984,-29985,-29985,-29984]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. a4 a5 6. Be3 {C50: Hungarian Defence and Giuoco Pianissimo.} Bxe3 7. fxe3 d5 8. exd5 {The position is equal.} Nxd5 9. Qd2 {[#]} f6 $146 ({Predecessor:} 9... O-O 10. O-O Be6 11. e4 Nf4 12. Na3 f6 13. g3 Bxc4 14. gxf4 Bf7 15. fxe5 Nxe5 16. Nxe5 {½-½ (56) Movsesian,S (2632)-Meskovs,N (2504) Riga 2021}) 10. Nc3 Nxc3 11. Qxc3 Qd6 12. Nd2 {[%cal Bf3d2,Bd2e4,Be4g5][%mdl 32]} Qb4 13. Ne4 Ke7 14. Bd5 Qxc3+ 15. bxc3 Nd8 16. Kd2 Be6 17. c4 f5 {And now ...Bxd5 would win.} 18. Ng5 Bd7 19. c5 Ra6 20. Nf3 Be6 21. e4 Kf6 22. Rhe1 f4 23. c3 (23. Kc3 $14) 23... c6 $1 $11 24. Bxe6 Nxe6 25. d4 exd4 26. cxd4 b6 27. cxb6 Rxb6 28. Rab1 {Prevents Rb2+.} Rhb8 29. Rxb6 Rxb6 {[%mdl 4096] Endgame KRN-KRN} 30. Rc1 g5 $1 31. Kd3 g4 32. Ne5 {Nd7+ is the strong threat.} Rb3+ 33. Rc3 {[#]} (33. Kd2 $11) 33... Nc5+ $1 $17 {[%mdl 512]} 34. Kc4 (34. Kc2 Rxc3+) 34... Rxc3+ 35. Kxc3 Nxe4+ {KN-KN} 36. Kc4 {[#]} h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 37. Nxc6 $2 {Loses the game.} (37. Kd3 $17 Nc5+ 38. Kd2) 37... h4 $19 {aiming for ...h3.} ({Not} 37... f3 38. gxf3 Nd2+ 39. Kd3 Nxf3 40. Nxa5 $11) 38. Ne5 Kf5 39. h3 (39. Kd3 $142 Nc5+ 40. Kd2 (40. dxc5 $2 Kxe5 41. Ke2 Kd5 $19)) 39... gxh3 40. gxh3 Ng5 41. Kd3 Nxh3 42. Nf3 Kg4 43. Ne5+ Kg3 {Black mates.} 44. d5 f3 45. Nc4 Nf4+ 46. Ke4 {[#]} Nxd5 $1 {[%mdl 512]} 47. Kxd5 h3 {Weighted Error Value: White=0.65/Black=0.03 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.1"]
[White "Nepomniachtchi, Ian"]
[Black "Artemiev, Vladislav"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2773"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,105,27,43,23,32,19,26,27,23,10,21,26,31,16,32,30,28,24,39,16,20,30,26,17,63,65,51,63,56,67,49,36,36,52,84,86,136,123,145,97,95,107,105,98,91,50,53,0,0,0,0,8,29,24,27,31,25,14,17,14,22,12,14,11,14,0,0,0,8,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} d6 5. Nc3 Nf6 6. d5 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} Nb8 7. a4 {[%cal Ba2a4,Ba4a5][%mdl 32] [#]} O-O $146 ({Predecessor:} 7... a5 8. O-O O-O 9. h3 Na6 10. Qe2 Nc5 11. b3 Nfd7 12. Be3 Nb6 13. Bxc5 dxc5 14. Nxe5 {1-0 (42) Mueller Toepler,M-Fuehrer,F freechess.de 2021}) 8. a5 {White has an edge.} c6 9. O-O cxd5 10. Bxd5 Nc6 11. a6 Nxd5 12. axb7 ({But not} 12. exd5 Nb4 $15) 12... Bxb7 {...Nxc3 is the strong threat.} 13. Nxd5 f5 14. exf5 Rxf5 15. Be3 Qd7 16. Nd2 Nd4 (16... Bd8 $11) 17. Nxe7+ $14 Qxe7 18. Bxd4 exd4 19. Nb3 Qh4 20. f3 Rh5 21. h3 (21. Qxd4 $2 Qxh2+ 22. Kf2 Rg5 $19) 21... Qg3 {aiming for ...Rxh3.} 22. Qe1 Qg6 (22... Qxe1 $142 23. Rfxe1 d3) 23. Nxd4 $16 Rxh3 {[#]} 24. Qe6+ (24. Qb4 $142 $1 {[%cal Rb4b7]} Bd5 {[#]} 25. Nf5 $1 Qxf5 26. gxh3) 24... Qxe6 25. Nxe6 Rh6 26. Rfe1 {[%cal Oe6g7]} Rf6 27. Nc7 {White is more active.} ({Better is} 27. Nd4 $16) 27... Rc8 $14 28. Re7 (28. Nb5 $14) 28... Kf8 $11 29. Rae1 Bc6 {Prevents Ne8.} 30. Na6 Rf7 31. Rxf7+ Kxf7 {[%mdl 4096] Endgame KRB-KRN} 32. Ra1 Bb7 33. Nb4 a6 {The position is equal.} 34. c3 g5 35. Kf2 ({Don't go for} 35. Nxa6 $2 Ra8 36. Ra5 Kf6 $19) 35... h5 36. Ra3 (36. Nxa6 $2 Ra8 37. Rh1 Rxa6 $19) 36... Rb8 37. Ra5 Kf6 38. Nd3 Bc8 39. Rd5 Rb6 40. Nb4 Bb7 {[%cal Ob6b4]} 41. Ra5 h4 42. g3 h3 {[%cal Og5g4] White must now prevent ...g4!} 43. g4 $1 h2 44. Kg2 Rb5 45. Rxb5 axb5 46. Kxh2 {Strongly threatening Kg2.} Bxf3 {KB-KN} 47. Kg3 Bb7 48. Kf2 $1 Bc8 49. Kf3 Bb7+ 50. Ke3 Bc8 51. Kf3 Bb7+ 52. Ke3 Bc8 53. Kf3 {Weighted Error Value: White=0.06 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.2"]
[White "Kosteniuk, Alexandra"]
[Black "Esipenko, Andrey"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2516"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "152"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,152,0,7,18,9,0,9,15,11,32,37,23,18,0,0,1,59,63,57,61,75,13,46,12,26,-9,82,75,76,82,100,104,104,105,97,108,107,94,100,102,93,93,143,133,124,135,266,22,28,-97,-99,-227,-219,-312,-328,-339,-330,-313,-314,-308,-264,-252,-183,-106,-53,-301,-279,-253,-244,-264,0,-272,0,0,0,-70,0,-358,-406,-393,-353,-431,-380,-354,-45,-108,-104,-5485,-5069,-6107,-6094,-5065,0,0,0,-1827,0,0,0,-5273,-5182,-5110,-5081,-2864,-1009,-1442,-1864,-1043,-34,-44,-44,-68,-81,-1203,-1167,-1177,0,-1243,-1267,-917,0,-986,0,-108,0,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29987,-29988,-29990,-29991]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nbd2 {[%cal Bb1d2,Bd2e4,Be4g3][%mdl 32]} d5 8. exd5 Nxd5 9. O-O {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} O-O 10. Ne4 Be7 11. h3 {[#] The position is equal.} Bf5 $146 ({Predecessor:} 11... Nb6 12. Bb3 Bf5 13. Re1 Bg6 14. a3 Re8 15. Nc5 Nxd4 16. Nxb7 Nxf3+ 17. Qxf3 Qd4 {½-½ (44) Bortnyk,O (2463)-Mozharov,M (2564) Moscow 2014}) 12. Re1 h6 13. Ng3 Bg6 14. Ne5 Nxe5 15. dxe5 Nb4 (15... Nb6 $11 16. Bb3 Qxd1 17. Rxd1 c5) 16. Qg4 $14 Kh8 17. Rd1 Qe8 18. Bf4 (18. Bd2 $1 $16) 18... b5 $1 $11 19. Be2 c5 20. Rd2 (20. a4 $5) 20... Nc2 (20... Rd8 $11) 21. Rad1 $36 {[%mdl 2048] White has strong initiative.} Nd4 22. Bd3 a5 23. Be3 Bxd3 24. Rxd3 f5 25. exf6 $1 Bxf6 26. Nh5 (26. Bxd4 $6 Bxd4 27. Nf5 Bxb2 $11) 26... Ra6 27. Bxd4 cxd4 28. Rf3 {[%cal Of3f6] Strongly threatening Rxf6!} ({Resist} 28. Nxf6 Raxf6 29. Qxd4 Rxf2 $14) 28... Be5 (28... Rf7 $142) 29. Rxf8+ Qxf8 30. Re1 $1 Qc5 (30... Bf6 $16) 31. Qd7 $2 (31. Qe2 $1 $18 {[%cal Re2e5]}) 31... Ra8 $11 32. f4 (32. Qe6 $11 Bc7 33. Nxg7 $1 Kxg7 34. Qe7+ Qxe7 35. Rxe7+ Kf6 36. Rxc7) 32... d3+ $1 $17 33. Kh2 (33. Kh1 $17 {was the only chance.} Bxb2 34. f5) 33... Bxb2 $19 34. Re8+ (34. f5 {is a better defense.} Be5+ 35. Ng3) 34... Rxe8 35. Qxe8+ Kh7 36. Qe4+ g6 37. Qb7+ Kg8 38. Qa8+ Kf7 {Active counter play!} 39. Qb7+ Kf8 (39... Qe7 $1 $17 {[%cal Re7b7]} 40. Qxb5 gxh5 41. Qxb2 Qe4) 40. Qb8+ (40. Qa8+ $1 $15 Kf7 41. Qb7+ Kg8 42. Qa8+ Qf8 43. Qd5+ Qf7 44. Qd8+ Kh7 45. Qxd3) 40... Ke7 41. Qb7+ Kd8 42. Qb8+ Ke7 43. Qb7+ Kf8 $2 (43... Kd6 $1 $19 44. Ng3 Qc6 45. Ne4+ Kd5) 44. Qb8+ $11 Kf7 (44... Ke7 $11 45. Qb7+) 45. Qb7+ $15 Kg8 (45... Qe7 $1 $15 46. Qxb5 gxh5 47. Qxb2 Qe4) 46. Qb8+ $2 {[%mdl 8192]} (46. Qa8+ $1 $11 {and White stays safe.} Qf8 47. Qd5+ Kh8 48. Ng3) 46... Qf8 $19 47. Qxb5 gxh5 48. Qxb2 Qxf4+ {[%mdl 4096] Endgame KQ-KQ} 49. g3 Qd6 (49... Qf3 $1 $19 {[%cal Rf3e2] aiming for ...Qe2+.} 50. Qb8+ Kf7) 50. Qb3+ (50. Qb5 $1 $15) 50... Kf8 $17 {And now ...h4 would win.} 51. Kg2 $2 {[%mdl 8192]} (51. Qc4 $17) 51... d2 $19 52. Qf3+ Ke7 53. Qe4+ Kf6 $2 (53... Qe6 $1 $19 {[%cal Re6e4]} 54. Qh4+ Kd7 55. Qd4+ Qd6 56. Qa7+ Kc6 57. Qa6+ Kd5 58. Qd3+ Kc5 59. Qa3+ Kc6 60. Qa4+ Kb7) 54. Qf3+ $11 Kg7 55. Qc3+ $2 {[%mdl 8192]} (55. Qb7+ $11 Kf6 56. Qf3+ Ke7 57. Qe4+ Qe6 58. Qb7+ Qd7 59. Qe4+ Kd6 60. Qb1) 55... Kf8 (55... Kg6 $142 56. Qc2+ Kg5 57. h4+ Kf6) 56. Qf3+ $19 Ke7 (56... Kg7 57. Qb7+ Kf6 58. Qf3+ Ke7 59. Qe4+ Qe6 60. Qh4+ Kd7 61. Qd4+ Qd6 62. Qa7+ Kc6 63. Qa6+ Kd5 64. Qd3+ Kc6 65. Qc2+ Kd7 66. Qd1 $19) 57. Qe4+ $1 Qe6 $1 58. Qb7+ Qd7 59. Qe4+ Kf6 (59... Kd6 $142 60. Qb1 Kc7) 60. Qf3+ Kg7 61. Qc3+ Kh7 $2 (61... Kf7 $19 62. Qc4+ Ke7 63. Qh4+ Kd6 64. Qf4+ Kc5 65. Qe3+ Qd4 66. Qe7+ Kb6 67. Qe6+ Kc7 68. Qf7+ Qd7 69. Qxh5 d1=Q 70. Qxa5+ Kd6 71. Qa3+ Kd5 72. Qa5+ Ke4 73. Qb4+ Q7d4 74. Qe7+ Kd3 75. Qa3+ Kd2 76. Qa5+ Ke3 77. Qa3+ Q1d3 78. Qxd3+ Qxd3 79. h4 Qe2+ 80. Kh3 Kf3 81. h5 Qg2+ 82. Kh4 Qxg3#) 62. Qc2+ $15 Kh8 $1 63. Qc3+ Kg8 $1 64. Qc4+ $2 {[%mdl 8192]} (64. Qb3+ $17 Kg7 65. Qd1) 64... Kf8 $1 $19 65. Qc5+ Kg7 66. Qc3+ Kg6 67. Qc2+ Kf7 $2 ({Better is} 67... Kf6 $19 68. Qc3+ Kf7 69. Qc4+ Ke7 70. Qe4+ Kd6) 68. Qc4+ $2 {[%mdl 8192]} (68. Qh7+ $11 Ke8 69. Qh8+ Ke7 70. Qe5+ Kf7 71. Qxh5+ Kg7 72. Qe5+ Kg8 73. Qb8+ Kg7 74. Qe5+ Kh7 75. Qe4+ Kh8 76. Qe5+ Kh7 77. Qe4+ Kh8 78. Qe5+ Kh7) 68... Ke7 $2 (68... Kf6 $19 {and Black stays clearly on top.} 69. Qf4+ Kg7 70. Qe5+ Kg6 71. Qe4+ Kg7 72. Qe5+ Kh7 73. Qe4+ Kh8 74. Qe5+ Kg8 75. Qb8+ Kh7 76. Qb1+ Kg7 77. Qa1+ Kh7 78. Qb1+ Kg7 79. Qa1+ Kh7 80. Qb1+) 69. Qe4+ $1 $17 Kd6 ({Don't go for} 69... Kd8 $2 70. Qa8+ Ke7 71. Qe4+ $19) (69... Kf8 $1 $17 70. Qf3+ Kg7 71. Qc3+) 70. Qd4+ $2 {[%mdl 8192] [#]} (70. Qf4+ $11 Kc5 71. Qe3+ Qd4 72. Qe7+ Kb6 73. Qe6+ Kc7 74. Qf7+ Qd7 75. Qxh5) 70... Kc7 $1 {Black mates.} 71. Qa7+ {[#]} Kc6 $1 72. Qa6+ Kc5 73. Qxa5+ Kc4 74. Qa6+ Qb5 75. Qc8+ Kd4 76. Qh8+ Qe5 {Weighted Error Value: White=0.70/Black=0.60} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.3"]
[White "Keymer, Vincent"]
[Black "Abdusattorov, Nodirbek"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2664"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "161"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,161,12,14,-13,6,0,0,0,41,0,0,0,0,0,0,0,0,-5,0,-11,-29,-15,-4,-11,0,0,0,0,0,0,0,0,2,10,6,11,11,11,6,0,7,0,7,8,8,10,28,28,72,30,39,38,42,35,49,41,41,41,41,41,41,41,49,41,41,41,58,58,58,58,58,58,58,41,44,26,26,26,41,43,38,22,26,26,32,29,32,35,37,42,26,26,63,8,8,8,110,110,102,128,91,113,310,332,332,59,511,502,466,413,624,617,617,617,610,588,573,566,29957,29961,29964,29964,29968,29970,29970,29972,29971,29973,29973,29974,29974,29975,29975,29976,29976,29977,29979,29980,29980,29981,29982,29982,29983,29982,29983,29984,29984,29985,29986,29986,29986,29987]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. O-O O-O 7. a4 {D78: Fianchetto Grünfeld: 6 0-0 c6.} Bf5 8. Nc3 dxc4 9. a5 $5 {[%mdl 4] [#] The position is equal. Leaves trodden paths.} Nbd7 $146 (9... Na6 $11 {deserves consideration.}) ({Predecessor:} 9... Ne4 10. Nh4 Nxc3 11. bxc3 Be6 12. Qa4 Nd7 13. Qb4 Bf6 14. Qxb7 Rb8 15. Qxc6 Rb3 {1-0 (33) Maltsevskaya,A (2261)-Eriksson,C (2159) Pardubice 2018}) 10. Qa4 (10. Nh4 $1 $14 {feels stronger.}) 10... b5 $11 11. axb6 $1 axb6 12. Qxa8 Qxa8 13. Rxa8 Rxa8 14. Nd2 Nd5 15. Nxd5 cxd5 16. Bxd5 Rc8 17. Nxc4 Bxd4 18. Rd1 Bf6 19. Ne3 Bh3 20. Bg2 Be6 {[%cal Oe6b3]} 21. Nd5 Kg7 22. Nxf6 exf6 23. Bd2 Rc2 24. Bc3 {[#] And now Be4 would win. A strong pair of Bishops.} Nc5 {Prevents Be4.} 25. Re1 Bc4 26. Bf3 b5 27. h4 h5 28. Kf1 Be6 29. Rd1 Bb3 (29... Na4 $11 {should be considered.}) 30. Rd2 (30. Rd6 $16 Ne6 31. Rb6) 30... Rc1+ 31. Kg2 Na4 32. Bd4 b4 33. Be4 Nc5 34. Bxc5 Rxc5 $14 {[%mdl 4096] Endgame KRB-KRB} 35. Rd4 Rb5 36. Kf3 Be6 37. Bd3 Rb7 38. Bc4 Bxc4 39. Rxc4 {KR-KR} f5 40. Ke3 Kf6 41. Kd3 Ke6 42. Rd4 f6 43. e3 g5 44. b3 Ra7 45. Ke2 Rb7 $1 46. Ke1 Rb6 47. Kf1 Rb7 48. Kg1 Rb6 49. Kh1 Rb5 50. Kh2 Rb6 51. Kh3 Kf7 52. Rd7+ ({White should try} 52. Kg2 $14) 52... Kg6 $11 53. Kg2 f4 (53... Re6 $1 $11 {remains equal.}) 54. gxf4 $16 {White stays focused until the end.} gxf4 55. e4 {White is more active.} Rc6 56. Rb7 Rc3 $2 (56... f3+ $16 {was worth a try.} 57. Kg3 (57. Kxf3 Rc3+ 58. Kf4 Rxb3 $11) 57... Rc1 58. Rxb4 Rg1+ 59. Kxf3 Rg4) 57. Rxb4 $18 Rd3 58. Rb5 $2 (58. Rb6 $18) 58... Rc3 $2 {[%mdl 8192]} ({Black should play} 58... Rd4 $1 $14) 59. Rb6 Kf7 60. Rb7+ Ke6 (60... Kg6 $142 61. Rb8 Kg7) 61. Rb5 Rd3 62. Rxh5 Rxb3 63. Rf5 Rc3 64. h5 {[%cal Bh4h5,Bh5h6,Bh6h7][%mdl 32] [#] White wants to mate with h6.} Rb3 65. h6 {White mates.} Kf7 66. e5 Ke6 67. Rh5 Rb8 68. h7 Rh8 69. exf6 Kxf6 70. Kf3 Kg6 71. Kg4 f3 72. Rh3 Kg7 73. Rh2 Kg6 74. Kxf3 Kg7 75. Kg4 Kg6 76. Rh3 Kf6 77. Rh6+ Kf7 78. Kg5 Kg7 79. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} Kf7 80. Rh1 Kg7 81. f5 {Weighted Error Value: White=0.15 (very precise) /Black=0.29 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.4"]
[White "Niemann, Hans Moke"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2642"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,108,12,-7,1,0,17,0,0,0,19,0,0,0,0,0,15,21,17,0,12,0,53,26,60,49,50,50,67,46,25,11,37,41,60,59,79,86,121,60,58,55,66,0,0,0,113,77,66,80,54,23,12,10,22,23,17,0,21,23,23,24,24,24,24,24,24,24,23,0,0,0,2,-1,-1,-4,-8,-7,-5,-29,0,0,0,0,0,-6,-23,-10,-37,-492,-291,-12837,-12837,-12839,-12839,-12841,-12841,-12841,-12842,-12842,-12843]} 1. c4 g6 2. Nc3 c5 3. Nf3 Bg7 4. e3 Nf6 5. d4 cxd4 6. exd4 O-O {A31: Symmetrical English: 2 Nf3 Nf6 3 d4.} 7. d5 e6 8. Be2 exd5 {The position is equal.} 9. cxd5 d6 10. h3 Re8 11. O-O {[#]} Nbd7 $146 ({Predecessor:} 11... Ne4 12. Nxe4 Rxe4 13. Bg5 Qb6 14. Nd2 Re8 15. Nc4 Qc7 16. Rc1 Qd7 17. Bf4 Be5 18. Nxe5 dxe5 {1-0 (38) Ahlander,B (2391)-Czernek,T (2003) Police 2019}) 12. Be3 Rxe3 13. fxe3 Qe7 14. Kh2 Nc5 15. Qd2 Bd7 (15... Bf5 $11) 16. Bd3 $14 Re8 17. Rae1 Bh6 {[%cal Rh6e3]} 18. b4 Nce4 19. Bxe4 Nxe4 20. Qd4 Nxc3 (20... f5 $5 {[%cal Rh6g7]} 21. Nxe4 Qxe4 $14) 21. Qxc3 Bb5 22. Rf2 Bg7 23. Qc2 h5 24. a4 (24. e4 $16) 24... Bd7 25. e4 Rc8 26. Qb3 (26. Qd3 $14) 26... Rc3 27. Qd1 Rc4 (27... g5 $11) 28. e5 dxe5 29. d6 $1 Qf6 {[#] White must now prevent ...e4.} 30. Qd5 {To avoid e4} ({Don't go for} 30. Nxe5 $2 Qxf2 31. Nxc4 Qf4+ 32. Kh1 Qxc4 $19) 30... Rc6 31. Qxe5 Qxd6 32. Qxd6 Rxd6 33. Ng5 Bf6 (33... Bc3 $5 {[%cal Rc3e1]} 34. Re7 f5 $11) 34. Ne4 {[%csl LRd6,LRf6]} Be5+ 35. Kh1 Rd4 36. Rd2 {Rxd4 is the strong threat.} Bxa4 37. Rxd4 Bxd4 $11 {[%mdl 4096] Endgame KRN-KB. This bishop pair is nice.} 38. Nd6 Bc3 {[%csl LRb4,LRe1]} 39. Re4 b5 40. Re8+ Kg7 41. Re7 Bxb4 42. Rxf7+ Kh6 43. Ne4 a5 {And now ...Bb3 would win.} 44. h4 $1 {Threatening mate with Ng5.} Bb3 (44... Be1 $5 {[%cal Ra4b3]} 45. Ra7 Bxh4 46. Rxa5 Be1 $17) 45. Ra7 a4 46. g4 hxg4 {Threatens to win with ...Bd5.} 47. Nf6 {[%csl Gf6][%cal Ra7h7] Inhibits Bd5+.} g5 48. h5 {[%csl Gf6][%cal Ra7h7]} Bc2 {Inhibits Rh7+. aiming for ...Bc3.} 49. Kg2 $2 {[%mdl 8192] Loses the game.} ({White has to play} 49. Ra6 $1 $15 Ba3 50. Ne4+ Kg7 51. h6+ Kf8 52. Ra8+ Kf7 53. Ra7+ Kg6 54. Ra6+ Kf5 55. Nf6) 49... Bc3 $19 50. Ng8+ (50. Ra6 Bxf6 51. Rxf6+ Kxh5 52. Rb6) 50... Kxh5 {Black is clearly winning.} 51. Ra6 Be4+ 52. Kg3 Be5+ 53. Kf2 g3+ {[%cal Bg4g3,Bg3g2][%mdl 32]} 54. Ke3 {[#]} g2 $1 {Weighted Error Value: White=0.39/Black=0.13 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.5"]
[White "Praggnanandhaa R"]
[Black "Giri, Anish"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2612"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,21,31,41,18,32,32,26,16,36,20,16,16,19,33,42,47,43,68,0,10,12,19,16,23,10,16,-12,0,0,0,0,0,-6,83,84,85,93,107,92,81,77,85,0,15,5,8,5,8,0,0,0,1,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. c4 e6 5. Qb3 dxc4 6. Qxb7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Be4 7. Qxc7 Bb4+ 8. Nbd2 {Qxd8+ is the strong threat. White is slightly better.} Qxc7 9. Bxc7 Ke7 10. e3 Rc8 $1 11. Bg3 {[#]} c3 $146 ({Predecessor:} 11... Bd5 12. Rc1 Nbd7 13. Ke2 c3 14. bxc3 Bxc3 15. Kd1 a5 16. Bd3 Bxa2 17. Rc2 Bd5 {½-½ (39) Aronian,L (2781)-Carlsen,M (2847) chess24.com INT 2021}) 12. bxc3 Rxc3 13. Be2 $1 Rc2 14. a3 (14. Kd1 $1 $14 Bg6 15. a3 Bxd2 16. Nxd2) 14... Ba5 15. Kd1 Bxf3 16. Nxf3 Rb2 17. Bd3 {aiming for Ne5.} Nbd7 18. e4 Rc8 {And now ...Rc3 would win.} 19. Rc1 $36 {[%mdl 2048] White has good play.} Rc3 20. Rxc3 Bxc3 21. Rf1 h6 (21... g5 $11) 22. Bf4 $1 $16 Ra2 23. Bc1 $1 {A strong pair of Bishops.} Bb2 24. Bxb2 (24. Bd2 {is more complex.} Bxa3 25. Bc3 Ng4 26. Bc2 Ndf6 27. Bd2) 24... Rxb2 {[#]} 25. Nd2 $1 Ra2 {[#]} 26. Ke2 (26. Nb1 $1 $16) 26... Rxa3 {The position is equal.} 27. Rb1 Ra4 28. Rb7 {next Bb5 is good for White.} Kd8 $1 ({Don't play} 28... Rxd4 29. Nb3 Ra4 30. e5 Ra2+ 31. Kf3 $16) 29. Bb5 Rxd4 {Hoping for ...Rb4.} 30. Rxa7 Rb4 31. Bxd7 Nxd7 $11 {[%mdl 4096] Endgame KRN-KRN} 32. Kd3 Ne5+ 33. Kc3 {Black must now prevent Ra8+.} Rb8 {Inhibits Ra8.} 34. f4 Rc8+ 35. Kb3 Rb8+ 36. Kc3 Rc8+ 37. Kb3 Rb8+ 38. Kc3 Rc8+ {Weighted Error Value: White=0.07 (flawless) /Black=0.08 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.6"]
[White "Le, Quang Liem"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "2709"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,71,74,69,72,66,75,37,33,24,92,59,147,139,142,137,135,136,145,86,85,0,66,74,66,66,117,122,161,186,186,183,226,206,203,157,182,184,232,203,292,254,254,0,330,320,331,335,341,331,343,314,290,304,291,277,653,653,653,653,598,408]} 1. d4 {[%cal Bd2d4,Bd4e5][%mdl 32]} Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 g5 5. Bg3 Bg7 6. Nf3 Nc6 7. h4 Ngxe5 {A52: Budapest Gambit.} 8. Nxe5 Nxe5 9. hxg5 {And now Nc3 would win.} Nxc4 {White is slightly better.} 10. Nc3 {[#] Black must now prevent Qc2.} Qxg5 (10... c6 $1 $11) 11. Rh4 Ne5 (11... Nxb2 $2 12. Re4+ Kd8 13. Qb3 $18) (11... Bxc3+ $14 12. bxc3 Ne5) 12. Nd5 O-O {[#]} 13. Nxc7 $146 ({Predecessor:} 13. e3 d6 14. Rh5 Qg4 15. Be2 Qd7 16. Qc2 f5 17. Nxc7 Rb8 18. Rc1 Kh8 19. Nb5 {1-0 (26) Riazantsev,A (2617)-Ponkratov,P (2530) Satka 2008}) 13... Rb8 {[%cal Od7d6]} 14. e3 {Strongly threatening Rh5.} d6 {[#]} 15. Nd5 {White is more active.} (15. Qxd6 $6 Bf5 $11) (15. Be2 $142 $1) 15... Be6 16. Bd3 $40 {[%mdl 128] White is up to no good.} h6 (16... Nxd3+ $11 17. Qxd3 h6) 17. Be2 $14 Rbc8 {[%cal Oe5d3]} 18. Kf1 Bxd5 (18... Rc5 $14 19. Nc3 Rc6) 19. Qxd5 $16 Rc2 20. Qxb7 (20. Qxd6 $6 Rd8 21. Qa3 Rdd2 $11) 20... Rfc8 21. Rd1 Ng6 (21... Qf5 $142 22. Qd5 (22. Rxd6 Rc1+ 23. Rd1 Rxd1+ 24. Bxd1 Rc1 $14) 22... Rc1) 22. Rh5 {[%cal Bh4h5,Bh5d5,Bd5d6][%mdl 32]} Qf6 23. Bg4 Rc1 24. Rhd5 (24. Qxa7 $6 Ne7 25. Qa4 R8c4 $16) 24... R8c2 (24... Rxd1+ $142 25. Rxd1 Rc2) 25. Qb8+ Kh7 (25... Bf8 $142 26. Rxd6 Rxd1+ 27. Rxd1 a6) 26. Rxd6 Qg5 27. Bf3 (27. Rxc1 $18 Rxc1+ 28. Rd1) 27... Rxb2 {[%mdl 8192]} (27... Be5 $1 $11 {and Black is okay.} 28. Bxe5 (28. Qxa7 Bxd6 29. Qxf7+ Kh8 $11) 28... Qh4) 28. Qxa7 $18 {The board is on fire.} Rxd1+ 29. Rxd1 Qf5 30. Kg1 h5 31. Qd7 Qxd7 32. Rxd7 h4 33. Bc7 Ne5 $2 (33... Be5) 34. Be4+ {White is clearly winning.} Kh6 35. Bxe5 Bxe5 36. Rxf7 {Weighted Error Value: White=0.25 (precise) /Black=0.51} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.7"]
[White "Hansen, Eric"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2606"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "183"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,183,41,41,27,22,18,15,0,0,0,0,0,0,-35,-37,-47,-36,-41,-45,-69,-21,-28,0,0,11,-13,0,0,38,50,41,43,65,34,55,46,51,37,46,10,14,-60,-60,-60,-60,-60,-60,-77,-47,-50,-50,-43,-44,-43,-43,-47,-47,-47,-52,-77,-77,-77,-77,-84,-86,-92,-77,-77,-70,-77,-77,-85,-85,-91,-91,-112,-112,-112,-112,-190,-190,-190,-189,-170,-112,-112,-112,-112,-112,-189,-189,-232,-120,-205,-112,-112,-112,-112,-8,-8,-8,-8,-8,-8,-8,-8,0,0,0,-8,-8,-8,-8,-8,-8,-8,-17,-32,-8,-10,-10,-10,-10,-10,-10,-10,-10,-10,-10,-17,-17,-17,-32,-32,-17,-32,-25,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-25,-32,-32,-32,-32,-32,-32,-32,-32,-32,0,0,0,0,0,-8,0,-8,-8,-32,-32,-32]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O d6 6. c3 g6 7. Re1 Bg7 8. d4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} O-O 9. dxe5 (9. h3 {with more complications.} exd4 10. cxd4 d5 11. exd5 Ne7 12. d6) 9... dxe5 10. Qxd8 {The position is equal.} Rxd8 11. Nbd2 {[#]} a5 $146 {[%cal Ba7a5,Ba5a4][%mdl 32]} ({Predecessor:} 11... a6 12. a4 b6 13. Ba2 a5 14. Bc4 Bb7 15. h3 {½-½ (15) Semeniuk,A (2365)-Mukhametov,E Novosibirsk 1989}) 12. Bb5 Ne8 13. b3 Nd6 14. Bf1 Be6 15. Ba3 a4 16. g3 b6 (16... f5 $15) 17. Kg2 Na7 18. Bxd6 cxd6 19. bxa4 Nc8 20. Bb5 Ra7 (20... d5 $5 {[%cal Rd5e4]}) 21. c4 Rc7 22. Nf1 h5 23. Ng5 Bd7 24. Ne3 Ne7 25. Rad1 Bh6 26. h4 f6 {[#]} 27. Bxd7 (27. c5 $1 $11 Rxc5 28. Bc4+ Kg7 29. Nf7) 27... Rdxd7 $15 28. Nf3 Bxe3 29. Rxe3 Rxc4 30. Rb3 Kf7 31. Rxb6 d5 32. exd5 Nxd5 33. Rbb1 Rxa4 34. Ra1 $1 Ke6 35. Rd2 Rda7 36. Rc1 {aiming for Rc6+.} R7a6 {Prevents Rc6+.} 37. Rcc2 Ra3 38. Rb2 Nc3 $1 39. Rbc2 Kf5 (39... Nxa2 {keeps more tension.} 40. Rd8 Nb4 41. Re8+ Kd7 42. Rcc8 Nc6) 40. Rd8 Rc6 41. Rd3 {[#]} Nxa2 $1 {[%cal Oa2b4]} 42. Rxc6 (42. Rxa3 Rxc2) 42... Rxd3 $17 {[%mdl 4096] Endgame KRN-KRN} 43. Ne1 Nb4 44. Nxd3 Nxc6 {KN-KN} 45. f3 Ke6 {White must now prevent ...Kd5.} 46. Kf2 {[#]} (46. Nc5+ $17 Kd5 47. Nd7) 46... Kd5 $1 $19 47. Ke3 Nd4 {[%cal Od4f3]} 48. Nb4+ Kc4 (48... Kc5 $19 49. Na6+ Kd6) 49. Na6 $17 Nf5+ 50. Kf2 Ne7 51. Ke3 (51. Nc7 $17 {might work better.}) 51... Nd5+ $19 52. Ke4 Nc3+ 53. Ke3 {[#]} f5 (53... g5 $1 $19 {...gxh4 is the strong threat.} 54. Nb8 gxh4 55. gxh4 Kd5) 54. Nb8 $17 Nd5+ 55. Ke2 e4 (55... Nb6 $17 56. Nc6 Kd5 57. Nb4+ (57. Ne7+ Ke6 $17) 57... Kd6) 56. Nc6 $1 $11 Kc5 57. Ne5 Ne7 58. Ke3 Kd5 59. Nf7 Nc8 60. Nh8 Ne7 {Threatens to win with ...Ke6.} 61. Nf7 exf3 62. Kxf3 Ke6 63. Ng5+ Ke5 64. Nf7+ Kf6 65. Ng5 Nd5 66. Nh3 Ke5 67. Nf2 Nb4 68. Nh3 Nd3 69. Ke3 Nc5 70. Nf4 Kf6 71. Nd5+ Kf7 72. Nf4 Ne4 73. Kf3 Nf6 74. Nd3 Ng4 75. Nf4 Ne5+ 76. Ke3 Nc4+ 77. Kd3 Nb6 78. Kd4 Nd7 79. Ke3 $1 Nc5 80. Kf3 Nb7 81. Ke3 Nd8 82. Kf3 Nc6 83. Ke3 Ne7 84. Kd4 Kf6 85. Ke3 Nc8 86. Nd5+ Ke5 87. Nf4 Ne7 88. Kf3 Kd4 89. Ne6+ Kd5 90. Nf4+ Ke5 91. Nd3+ Kf6 92. Nf4 {White happily takes the draw.  Weighted Error Value: White=0.11 (very precise) /Black=0.11 (very precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "7.8"]
[White "Ding, Liren"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2799"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,107,27,1,18,11,6,0,9,12,8,-7,-12,-12,-7,-8,-6,-4,-6,-6,-4,-2,-7,-6,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,0,-57,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,151,81,81,0,0,-8,-8,-8,0,-8,0,0,0,0,8,8,8,8,8,8]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 Nd7 12. O-O b6 13. Rfe1 Bb7 14. Rad1 Rc8 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} 15. Bb3 Re8 16. h3 Nf6 17. Qf4 {[%cal Od4d5]} Qc7 18. Qxc7 Rxc7 19. d5 exd5 20. exd5 Rxe1+ 21. Rxe1 Kf8 {[#]} 22. d6 $146 ({Predecessor:} 22. Nd4 Bxd5 23. Nb5 Rd7 24. Rc1 Bxb3 25. axb3 Ke7 26. Na3 {0-1 (50) Nesterov,A (2491)-Martin Carmona,G (2294) Chess.com INT 2021}) 22... Rd7 23. Ne5 Rxd6 24. Nxf7 Rd4 25. Ng5 Bd5 26. Ne6+ Bxe6 27. Rxe6 $11 {[%mdl 4096] Endgame KRB-KRN} Nd7 28. Rc6 Nc5 29. Rc8+ Ke7 30. Rc7+ Rd7 31. Rxd7+ Kxd7 {KB-KN} 32. Bg8 h6 33. f4 (33. Kf1 $11) 33... b5 (33... Ne4 $1 $15) 34. Kf2 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 35. Ke3 Kd6 36. Kd4 a4 37. h4 b4 38. Kc4 b3 39. axb3 a3 40. Kc3 $1 {Black must now prevent b4.} ({Don't blunder} 40. b4 $2 a2 $1 41. bxc5+ Kc7 $19) 40... Nd3 {...a2 is the strong threat.} 41. b4 ({But not} 41. Kxd3 $2 a2 42. Bh7 a1=Q $19) 41... Nxf4 42. g4 Ng6 43. h5 Ne5 44. Kb3 g6 $2 {[#]} (44... a2 $11 45. Kxa2 Nxg4) 45. hxg6 ({Stronger than} 45. Kxa3 g5 $11) ({White should try} 45. g5 $1 {[%cal Rg5h6]} Ng4 46. hxg6) 45... Nxg6 $16 {[#]} 46. Kxa3 (46. Bc4 $1 $16) 46... Ne5 $11 {The position is equal.} 47. Ka4 Nxg4 48. Bf7 Kc7 49. Bh5 Ne5 50. Kb5 Nc6 51. Kc5 Nxb4 52. Kxb4 Kd6 53. Be2 h5 54. Bxh5 {Weighted Error Value: White=0.09 (flawless) /Black=0.11 (very precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.1"]
[White "Artemiev, Vladislav"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2700"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,66,0,11,15,12,16,22,16,19,29,30,22,19,30,21,21,26,26,30,21,13,9,19,13,13,14,12,5,8,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O Nc6 5. d4 e6 6. b3 cxd4 7. Nxd4 Bd7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 8. c4 Bc5 9. Bb2 Bxd4 10. Bxd4 {[#]} Nxd4 $146 ({Predecessor:} 10... dxc4 11. Bc5 Qa5 12. b4 Qc7 13. Na3 O-O-O 14. Nb5 Qe5 15. Nd6+ Kb8 16. Nxf7 Qh5 17. Nxh8 Rxh8 18. Qd6+ Ka8 19. b5 Nd8 20. Be3 Ng4 21. h3 {1-0 (21) Fadi,M (2276)-Ibrahim,M (2000) Cairo 2016}) 11. Qxd4 {[%cal Rc4d5]} dxc4 $1 12. Bxb7 Rb8 13. Bf3 cxb3 14. axb3 Rxb3 15. Nd2 {[%cal Bb1d2,Bd2e4,Be4d6][%mdl 32]} Rb8 16. Rxa7 {[#] Strongly threatening Qd6. The position is equal.} O-O 17. Ne4 {aiming for Nxf6+.} Bb5 18. Nd6 Qb6 19. Qxb6 Rxb6 20. Nxb5 Rxb5 21. h4 h5 22. Rc1 g6 23. Rcc7 Nd5 24. Rc4 Kg7 25. Kg2 Re8 26. Bxd5 Rxd5 $11 {[%mdl 4096] Endgame KRR-KRR} 27. Rcc7 Rf8 28. Rd7 Rxd7 29. Rxd7 Ra8 30. Rc7 Rb8 31. Rd7 Ra8 32. Rc7 Rb8 33. Rd7 Ra8 {An even fight not without its subleties.  Weighted Error Value: White=0.01 (flawless) /Black=0.00 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.2"]
[White "Aronian, Levon"]
[Black "Ding, Liren"]
[Result "1-0"]
[ECO "C59"]
[WhiteElo "2772"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,99,0,0,0,0,0,2,0,-6,16,20,26,27,14,14,47,46,83,54,108,58,64,73,127,52,103,84,95,83,92,33,31,52,44,60,50,48,45,0,0,-5,0,-2,0,0,14,19,141,72,90,0,0,0,0,0,0,0,29,29,109,115,12833,12833,12833,12831,29991,29992,29992,12842,29991,638,611,618,600,591,584,552,12835,12834,1237,518,12841,12838]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nh3 $1 {[%mdl 4] is recently more successful than 9.Nf3.} Bd6 10. d3 O-O {C59: Two Knights: 4 Ng5 d5 5 exd5 Na5 5 Bb5+ c6 6 dxc6 bxc6 7 Be2.} 11. Nd2 $5 {[%cal Bb1d2,Bd2e4,Be4c5][%mdl 4] An interesting side line.} (11. Nc3 Nb7 12. O-O Nc5 13. Kh1 Bf5 14. Ng1 e4 15. dxe4 Ncxe4 16. Nxe4 Nxe4 17. Be3 Qc7 18. Bd3 Rfe8 19. h3 Rad8 20. Qf3 Bg6 21. Rad1 c5 {1-0 (33) Aronian,L (2772)-Ding,L (2801) Kolkata 2019}) 11... c5 12. O-O Bc7 {The position is equal.} 13. Kh1 Rb8 14. Ng1 Nc6 15. c3 {[#]} Ne7 $146 ({Predecessor:} 15... Qe7 16. Ngf3 Rd8 17. Qc2 Bf5 18. Re1 Na5 19. Ne4 Bg6 20. Nfd2 Nd5 21. b3 f5 {½-½ (33) Green,P (2121)-Welti,M (2147) ICCF email 2019}) 16. Ne4 Ng6 17. Nxc5 Nd5 (17... Qd5 18. b4 $16) 18. Bf3 Nh4 (18... Qe7 $1 $14 19. d4 (19. Bxd5 Qxc5 20. Bb3 Qd6 $14) 19... exd4 20. cxd4 (20. Bxd5 Qe5 $14) 20... Nh4) 19. Qa4 (19. c4 $16 Nb4 20. a3 Nxf3 21. Nxf3 Nxd3 22. Qxd3 Qxd3 23. Nxd3) 19... Nxf3 20. Nxf3 Rb6 (20... Qd6 $142 21. Ne4 (21. Qxa7 Nb6 $11) 21... Nb6 22. Nxd6 Nxa4) 21. Qh4 (21. Qxa7 Bg4) (21. c4 $16 Qe7 22. cxd5 (22. Qxa7 Nb4 $16) 22... Qxc5 23. Be3 (23. Qxa7 Rb5 $16)) 21... g5 ({Better is} 21... Qxh4 $14 22. Nxh4 Rd8) 22. Qe4 (22. Bxg5 hxg5 23. Nxg5 Bf5 $17) 22... f5 23. Qc4 g4 24. Ng1 (24. Nd2 $16) 24... Kh7 $14 25. b4 Rg6 26. Bd2 h5 27. Rae1 h4 28. f4 (28. f3 $14) 28... exf4 {With the idea ...Qd6.} 29. Ne2 {[%cal Re2f4]} f3 30. Nf4 $132 {[%mdl 2048] White puts up resistance} Nxf4 31. Bxf4 fxg2+ 32. Kxg2 Bb6 (32... Bxf4 $11 33. Rxf4 Qg5) 33. Re5 {White is much more active.} (33. d4 $142) 33... Bxc5 34. bxc5 (34. Rxc5 $16 Be6 35. Qd4) 34... Ba6 $1 $11 {[%cal Bc8a6,Ba6d3,Bd3e4][%mdl 32]} 35. Qd4 {Strongly threatening Kg1.} ({Not} 35. Qd5 $2 Bxd3 36. c4 Bxf1+ 37. Kxf1 Qf6 $19) 35... Bxd3 {aiming for ...Qxd4.} 36. Rd1 {The board is on fire.} Be4+ 37. Kg1 Qf6 38. Qd6 Rf7 {To avoid Re7} (38... Qg7 $11 {keeps the balance.} 39. Re7 Rxd6 40. Rxg7+ Kxg7 41. cxd6 Bc6) 39. Re8 $1 $16 {[%cal Be5e8,Be8h8,Bh8g8][%mdl 32] Threatens to win with Be5.} Qxc3 {[%mdl 8192] [#] This move loses the game for Black.} (39... Qxd6 $16 40. cxd6 (40. Rxd6 Rxd6 41. cxd6 Bd5 $14) 40... Rd7) 40. Qd8 $1 $18 Rh6 41. Bxh6 {White threatens Bf4 and mate.} ({Less strong is} 41. Qg5 Qg7 $16) 41... Qxc5+ 42. Rd4 f4 43. Rh8+ Kg6 {[#]} 44. Qd6+ (44. Bxf4 $142 $1 Qxd4+ 45. Qxd4 Rxf4 46. Qe5 Kf7 47. Qxf4+ Ke7 48. Qxe4+ Kf7 49. Qf5+ Ke7 50. Qg6 h3 51. Rh7+ Kf8 52. Qf7#) 44... Qxd6 {White is clearly winning.} 45. Rxd6+ Kf5 46. Rg8 {[%csl Gh6][%cal Rg8g5]} Ke5 47. Rd1 g3 48. Re8+ Kf5 49. Bxf4 Kxf4 (49... Bc6 $142 50. Rc8 Rd7 51. Rxd7 Bxd7) 50. Rd4 {Weighted Error Value: White=0.28 (precise) /Black=0.33} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.3"]
[White "Mamedyarov, Shakhriyar"]
[Black "Hansen, Eric"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2767"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,108,0,0,-7,0,0,0,0,4,0,18,16,60,85,72,84,102,16,115,106,114,105,130,132,154,135,166,166,239,130,121,135,138,124,149,148,152,162,152,122,114,130,131,120,149,145,147,143,140,111,115,78,85,106,94,101,253,251,331,0,0,0,37,0,0,0,47,2,14,0,0,0,60,0,0,0,0,-6,0,-90,-90,-115,-148,-286,-277,-327,-356,-430,-472,-443,-442,-536,-526,-530,-513,-683,-689,-951,-889,-1058,-508]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 4. dxc5 e6 5. e4 Bxc5 {With the idea ...Qb6.} 6. Qe2 {D00: 1 d4 d5: Unusual lines.} Be7 $5 {[%mdl 4] Leaves trodden paths.} 7. O-O-O O-O 8. f4 {The position is equal.} Nc6 9. Ngf3 {[#]} Qa5 $146 ({Predecessor:} 9... a5 10. e5 Nd7 11. h4 a4 12. a3 b5 13. Qxb5 Qc7 14. Bxe7 Nxe7 15. Qb4 Nf5 {½-½ (65) Andreikin,D (2726)-Najer,E (2648) Chess.com INT 2020}) 10. Kb1 a6 (10... h6 $11 11. Bxf6 Bxf6) 11. e5 $1 $14 Nd7 12. h4 Qa4 (12... Bxg5 $2 13. hxg5 (13. Nb3 Qb4 $11) 13... Qa4 14. Qe3 $18 (14. Qd3 g6 $18)) 13. g3 (13. Bxe7 $16 Nxe7 14. g3) 13... Nc5 (13... Bxg5 14. hxg5 (14. b3 $2 Qa3 $19) 14... Nb4 15. a3 Qxc2+ 16. Ka1 $16) (13... Bc5 $1 $11) 14. Bxe7 $16 Nxe7 15. Nb3 {[%cal Bd2b3,Bb3c5,Bc5e4,Be4d6][%mdl 32]} Ne4 16. Qe1 Bd7 17. Bd3 {And now Bxe4 would win.} Rfd8 18. Ng5 Bc6 {[#]} (18... Rac8 {was called for.} 19. Nd4 (19. Bxe4 dxe4 20. Nxe4 Bc6 $16) 19... h6) 19. Nxe4 (19. Nxh7 $1 $18 {[%mdl 512]} Rac8 (19... Bb5 20. Ng5) 20. Ng5) 19... dxe4 {[#]} 20. Nc5 {[%csl LRa4,LRe4]} Qd4 21. Nxe4 Nf5 22. Nd6 $1 Bxh1 23. Bxf5 Qb6 {[#]} 24. Bxh7+ $1 {[%mdl 512]} Kxh7 25. Qxh1 Rd7 26. a3 Qc6 27. Qf1 Kg8 28. h5 Rad8 29. Rd3 f5 30. Qd1 Qg2 31. c3 {[%cal Oh5h6]} Kh7 32. Ka2 b5 $2 {[#]} (32... Re7 $16 {is a better defense.}) 33. Qb3 $1 $18 Re7 {[#]} 34. Qb4 $2 (34. Nxf5 $1 $18 {[%mdl 512]} Rxd3 35. Nxe7) 34... Rc7 $11 35. Rd4 {Qb3 is the strong threat.} Rdd7 36. Rd3 Qe2 {[%csl LRd3,LRh5]} 37. Rd4 Qg2 38. Qb3 (38. h6 $14 gxh6 39. g4) 38... Re7 39. Rd3 Qe2 40. Qd1 Qg2 (40... Qxd1 $11 41. Rxd1 Red7) 41. Qe1 ({White should play} 41. Qb1 $14) 41... Rc5 $1 {[%cal Bc7c5,Bc5d5,Bd5d1][%mdl 32]} 42. Rd2 Qf3 43. Qg1 Rd5 44. Rf2 {[#]} (44. Rxd5 $1 $11 {remains equal.} Qxd5+ 45. Kb1) 44... Rd1 $1 $17 {Hoping for ...Qd5+.} 45. Rxf3 (45. Qg2 Qxg2) 45... Rxg1 {[%mdl 4096] Endgame KRR-KRN} 46. Rd3 (46. a4 $17) 46... Kh6 $19 47. Kb3 Kxh5 48. Kb4 Kg4 {Black is clearly winning.} 49. Ka5 Rxg3 50. Rd1 Kxf4 51. Kxa6 Kxe5 52. Nxb5 f4 53. Re1+ Re3 54. Rg1 Kf6 {Quite a comeback for Black.  Weighted Error Value: White=0.38/Black=0.16 (very precise)} (54... f3 $142 55. Rf1 Rf7) 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.4"]
[White "Giri, Anish"]
[Black "Le, Quang Liem"]
[Result "1-0"]
[ECO "C92"]
[WhiteElo "2772"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,129,20,8,21,10,27,0,0,0,15,-7,0,6,68,77,86,90,99,89,86,77,127,124,181,214,274,239,242,241,228,231,336,275,266,245,234,237,231,231,246,214,247,232,236,227,289,296,326,254,248,247,686,68,539,386,523,371,375,371,358,366,384,382,382,380,385,356,370,381,407,412,402,397,493,499,601,589,659,698,789,788,785,792,787,716,807,786,739,731,683,606,1881,1881,1240,1108,1038,955,1099,1106,1057,1056,1267,883,1165,1143,1113,1073,918,808]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a4 exd4 {C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations.} 13. cxd4 Na5 14. Bc2 b4 {The position is equal.} 15. b3 g6 16. Bb2 d5 {[%cal Rf6e4]} 17. e5 {[#]} Nh5 $146 (17... Nd7 $11) ({Predecessor:} 17... Nd7 18. Nf1 c5 19. e6 Rxe6 20. Rxe6 fxe6 21. dxc5 Bg7 22. Bxg7 Kxg7 23. Ne3 h5 {0-1 (46) Pijpers,A (2473)-Chigaev,M (2623) Budva 2019}) 18. Nf1 $36 {[%cal Bd2f1,Bf1e3,Be3g4][%mdl 2080] White is really pushing.} Rc8 19. Ne3 c5 20. dxc5 Rxc5 {[%cal Od5d4]} 21. Ng4 {[%cal Oe5e6]} Nc6 (21... Bc8 $142) 22. Qd2 $16 {White is more active.} d4 (22... Qe7 $16 {was called for.} 23. Bd3 Rc8) 23. Be4 $18 Bg7 24. Rad1 (24. Bxd4 $2 Nxd4 25. Qxd4 (25. Nxd4 $2 Bxe4 26. Qxb4 Bf8 $19) 25... Qxd4 26. Nxd4 Bxe4 27. Rxe4 f5 $19) 24... f5 25. exf6 $1 (25. Bxd4 Nxd4 26. Qxb4 {[#]} Qc7 $1 27. Qxb7 (27. Bxb7 $2 Nc2 $19) 27... fxe4 28. Qxe4 Ne6 $15) 25... Nxf6 26. Bxc6 Bxc6 (26... Rxc6 $142 27. Rxe8+ (27. Bxd4 Rxe1+ 28. Qxe1 Rd6 $16) 27... Nxe8 28. Nxd4 (28. Bxd4 Rd6 $11) 28... Rc8 29. Qxb4 (29. Nh6+ Bxh6 30. Qxh6 Rc2 $16) 29... Qd5) 27. Rxe8+ (27. Bxd4 Bxf3 28. Rxe8+ (28. gxf3 Rd5 $14) 28... Qxe8 $18) (27. Qxd4 Qxd4 28. Bxd4 Rxe1+ 29. Rxe1 Nd7 30. Bxc5 Nxc5 $18) 27... Bxe8 28. Bxd4 Rd5 29. Nxf6+ ({Don't take} 29. Qxb4 $6 Nxg4 30. hxg4 Bf7) 29... Bxf6 30. Qxb4 Bf7 31. Qc3 a5 32. b4 axb4 33. Qxb4 Qd6 34. Qc3 Qd7 35. Qa1 Be8 36. a5 {aiming for a6.} Bd8 $2 (36... Qa4 37. Qxa4 Bxa4) 37. Ne5 $2 ({Only move:} 37. a6 $18 Bb6 38. Rd2 Bxd4 39. Rxd4 Rxd4 40. Qxd4) 37... Qd6 $2 {[%mdl 8192]} (37... Qa4 $14) 38. Qa2 {Threatens to win with a6.} Kf8 39. Nf3 ({Weaker is} 39. Qd2 Bxa5 40. Qh6+ Kg8 $16) 39... Rxa5 {[#]} 40. Qxa5 {[%mdl 512]} Bxa5 {[#]} 41. Bg7+ $1 {[%mdl 576] Discovered Attack} Ke7 {[#]} 42. Bf8+ $1 {[%mdl 576] Skewer} Kxf8 43. Rxd6 {[%mdl 4096] Endgame KRN-KB} Bc7 44. Rd1 h6 45. Nd4 {Strongly threatening Ne6+.} Bd7 {To avoid Ne6+} 46. Kf1 Ke7 47. Ke2 Be5 48. Ke3 {White is clearly winning.} Kf6 49. Rb1 Bc8 50. Rb6+ Kf7 51. f4 Bf6 52. Ke4 h5 53. Kd5 h4 54. Nf3 Kg7 55. Ne5 Bf5 56. Ng4 Be7 57. Rb7 Kf8 58. Ke5 Bc5 59. Kf6 {Rb8+ would kill now.} Ke8 60. Ne5 {Intending Rb8+ and mate.} Kd8 61. Rb5 Be7+ 62. Kf7 Be4 {Inhibits Rd5+.} 63. Nxg6 Bd6 {[#]} 64. Ke6 $1 Kc7 (64... Bc7 65. Nxh4) 65. Rg5 {Black got outplayed after the opening.  Weighted Error Value: White=0.37/Black=0.59} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.5"]
[White "Carlsen, Magnus"]
[Black "Praggnanandhaa R"]
[Result "0-1"]
[ECO "D32"]
[WhiteElo "2865"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,78,0,0,0,0,0,4,0,-1,0,8,0,0,-12,0,0,0,-18,-27,-55,-72,-92,-87,-283,-13,-6,0,0,4,15,6,14,13,12,15,7,20,19,29,26,24,23,45,0,0,-304,-291,-286,-256,-256,-251,-29943,-12839,-29955,-29943,-29989,-29975,-29970,-29973,-29992,-5571]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 Nc6 6. cxd5 exd5 7. Bb5 cxd4 8. exd4 Bd6 9. O-O O-O 10. h3 {now supersedes 10.Bg5.} h6 11. Re1 {D32: Tarrasch Defence: Sidelines and lines without g3.} Bf5 12. Ne5 Rc8 13. Bf4 {The position is equal.} Re8 14. Rc1 {[#]} Qb6 $146 ({Predecessor:} 14... Re6 15. Bh2 Bh7 16. Bxc6 bxc6 17. Na4 Qa5 18. a3 Qb5 19. Re3 Ne4 20. f3 Nf6 {0-1 (30) Le,Q (2709)-Vidit,S (2727) Kolkata 2021}) 15. Bxc6 bxc6 16. Na4 {Pair of Knights!} Qa6 17. Re3 Ne4 18. f3 Ng5 19. Rec3 {[%cal Rc3c6]} Qb7 20. Bh2 {[%cal Re5c6]} Ne6 $1 {Black is more active.} 21. Nxc6 $2 (21. g4 $17 Bh7 22. Nxc6 Bxh2+ 23. Kxh2) 21... Nf4 $2 (21... Bxh2+ $19 22. Kxh2 Nf4) 22. Ne5 $1 $11 Bxe5 23. dxe5 Nd3 $132 {[%mdl 2048] Black has counterplay} 24. Rxc8 Rxc8 25. Rxc8+ Qxc8 26. Bg3 d4 27. b3 Qc6 28. Qd2 Kh7 29. Kh2 Bg6 30. Qa5 Qc1 31. Qxa7 (31. e6 $1 $14 Nf4 32. e7) 31... Qe3 32. Nc3 $2 {[%mdl 8192]} Nf4 $1 $19 {...Qd2 is the strong threat.} 33. Nd1 {[#]} Qd2 {[%csl Gf4][%cal Rd2g2]} 34. Nf2 {[%cal Oe5e6] [#]} Ne2 $1 35. h4 $2 (35. Ng4 $19) 35... Qe1 {( -> ...Bf5)} 36. Qd7 Nxg3 {Black mates.} 37. Qxd4 Nf1+ 38. Kh3 Ne3 39. Qb2 Bc2 {Weighted Error Value: White=0.73/Black=0.19 (very precise)} (39... Qg1 $142 40. Ne4 Nf1 41. Kg4 Qh2 42. g3 Qxb2 43. h5 Bxe4 44. fxe4 Qf2 45. b4 Qxg3+ 46. Kf5 Qg5#) 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.6"]
[White "Abdusattorov, Nodirbek"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2651"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,99,0,8,0,4,0,-4,0,0,5,0,22,0,0,-25,0,0,0,0,0,-41,-28,-20,-29,-72,-61,-89,-93,-90,-89,-119,-88,-86,-77,-73,-81,-135,-53,-52,-31,-36,-35,-95,-87,-109,-70,-64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12847,12847]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 {[%cal Bg1f3,Bf3e1,Be1c2,Bc2e3,Be3d5][%mdl 32]} d6 6. O-O e5 7. a3 a5 8. d3 Nge7 9. Ne1 Be6 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} 10. Bg5 f6 11. Be3 O-O {The position is equal.} 12. Nc2 {[#]} a4 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 12... Qd7 13. Rb1 Bh3 14. b4 axb4 15. axb4 Bxg2 16. Kxg2 b6 17. bxc5 bxc5 18. Bd2 f5 19. Ne3 Rab8 20. Ned5 Nxd5 21. Nxd5 Ne7 {1-0 (43) Sunilduth Lyna,N (2618)-Brunner,N (2418) Chess.com INT 2021}) 13. Rb1 Ra6 14. Bd2 (14. Ne1 {was preferrable.}) 14... d5 $11 {[%cal Bd6d5,Bd5d4][%mdl 32]} 15. Ne3 {[%cal Rc4d5]} d4 {[%csl LRc3,LRe3]} 16. Nxa4 {[%cal Oe3d5]} b6 17. Nd5 Nxd5 18. cxd5 (18. b4 $11 {might be stronger.}) 18... Bxd5 $15 19. Bxd5+ Qxd5 20. b4 (20. e4 $11 dxe3 21. Bxe3) 20... Rfa8 $17 21. b5 {[%csl LRa6,LRc6]} Rxa4 22. bxc6 R4a6 ({Much weaker is} 22... Rxa3 $6 23. Rxb6 Bf8 24. Qb1 $11) 23. c7 {[%cal Oa3a4]} Rc8 24. a4 {[%cal Oa4a5]} Rxc7 25. a5 bxa5 26. Rb8+ Kf7 (26... Bf8 $17 27. Qa4 Rb7) 27. Qa4 $15 {[%csl Gb8][%cal Ra4e8] [#]} Qc6 {Prevents Qe8+.} 28. Qc4+ Qe6 29. Qa4 (29. Qb5 $1 $15) 29... g5 30. Rfb1 Kg6 31. Bxa5 Qc6 (31... Rcc6 $15 32. R1b7 h6) 32. Qxc6 $11 Rcxc6 33. R1b7 $1 {[%cal Ob8g8] And now Rg8! would win.} Rxa5 34. g4 f5 35. Rg8 $1 fxg4 {[%cal Og6f5] [#] Strongly threatening ...Kf5!} 36. Rbxg7+ {[%mdl 4096] Endgame KRR-KRR} Kf6 {Threatens to win with ...c4.} 37. Rxh7 {[%cal Bg7h7,Bh7h6,Bh6c6,Bc6c5,Bc5e5][%mdl 32]} Ra1+ 38. Kg2 {Rh6+ is the strong threat.} Re1 39. Rh6+ Kf7 40. Rxc6 {Ra8 would kill now.} Kxg8 41. Rxc5 Rxe2 {KR-KR} 42. Kf1 Rd2 43. Rxe5 Rxd3 44. Rxg5+ Kf7 45. Rxg4 Kf6 46. h4 {[%cal Bh2h4,Bh4h5,Bh5h6][%mdl 32]} Ke5 47. Kg2 Kf5 48. Rg8 Rc3 49. h5 Rd3 $2 {[%mdl 8192]} (49... d3 $11) 50. h6 {Weighted Error Value: White=0.06 (flawless) /Black=0.10 (very precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.7"]
[White "Esipenko, Andrey"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2714"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "205"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,205,6,12,8,0,-11,10,7,22,29,8,0,0,-10,-9,-12,-20,-20,-25,-68,-53,-56,-8,-11,0,-22,-18,-27,-22,-14,8,-59,0,-60,-56,-60,-67,-69,-43,-60,-55,-53,-61,-61,-58,-47,-59,-50,-63,-73,-72,-70,-70,-67,-33,-33,-28,-104,-104,-97,-98,-109,-86,-182,0,-27,0,-194,-165,-153,-113,-113,-8,-8,0,-18,-18,-20,0,0,59,59,533,531,553,471,441,415,334,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,8,0,8,0,8,0,8,8,8,0,0,0,0,0,8,8,8,8,8,8,8,8,8,0,8,8,8,0,0,0,8,0,6,6,8,8,8,8,8,0,8,8,8,0,8,0,0,0,29985,29986,29986,96,29987,29988,29988,29989,29993,29994,29994,29995,29995,29996,29997,29998]} 1. e4 c6 2. Nf3 d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Nd7 6. Nfd2 {B10: Caro-Kann: 2 d3 and 2 c4.} f5 {[#]} 7. exf5 $146 ({Predecessor:} 7. f3 Ngf6 8. Nc3 g6 9. exf5 gxf5 10. Nc4 Bg7 11. Be3 Nd5 12. Bd2 O-O 13. Ke1 {0-1 (40) Hansen,E (2606)-Keymer,V (2607) Chess.com INT 2021}) 7... Ne5 (7... Nc5 $5 {[%cal Rc8f5]}) 8. Nc4 {The position is equal.} Nxc4 9. Bxc4 Bxf5 10. Be3 Nf6 11. f3 {Inhibits Ng4.} Nd5 12. Bd2 O-O-O 13. Re1 {Inhibits Ne3+.} e6 14. Kc1 (14. Bxd5 $11 {is more appropriate.} Rxd5 15. Nc3) 14... Bd6 $15 15. g3 b5 (15... h5 $1 $15 {should be considered.}) 16. Bb3 $11 c5 17. c4 Nb4 18. Bxb4 cxb4 19. Nd2 Rd7 20. Ne4 (20. cxb5 $11 Rhd8 21. Nc4 (21. Bxe6 Bxe6 22. Rxe6 Bf4 $17)) 20... Kb8 (20... Be7 $1 $15) 21. cxb5 (21. Rd1 $11 Bxe4 22. fxe4 bxc4 23. Bxc4) 21... Rc8+ $15 22. Kb1 Be5 {( -> ...Rd2)} 23. Rd1 {Inhibits Rd2.} Rxd1+ 24. Bxd1 Bxe4+ 25. fxe4 {[%mdl 4096] Endgame KRB-KRB} Rf8 $1 26. Kc2 Rf2+ 27. Kd3 Rxb2 28. Bg4 Rxh2 29. Rf1 Rxa2 30. Bxe6 Ra3+ 31. Kc4 Rxg3 (31... b3 $5 {[%cal Rb3b2]} 32. Kb4 Bd6+ 33. Kc3 b2+ 34. Kxb2 Rxg3 $17) 32. Kxb4 Bf6 33. Rc1 (33. Kc5 $11 {remains equal.}) 33... Re3 $1 $17 34. Bd5 h5 35. Kc5 Kc7 36. Kb4+ (36. Rc4 $17 {was called for.}) 36... Kb8 $2 ({Black should play} 36... Kd6 $19 {Threatens to win with ...h4.} 37. Rc6+ Ke5) 37. Kc5 $1 $11 Kc7 $2 (37... h4 $11 38. Kd6 Bc3) 38. Kb4+ $1 $19 Kd8 39. Kc5 Kd7 40. Rd1 Be7+ (40... h4 $17 {...h3 is the strong threat.} 41. Bc4+ Ke7) 41. Kd4 $11 Ra3 42. e5 Ra4+ 43. Kc3 {Black must now prevent Bb3+.} Kc7 44. Bc6 {Hoping for Rd7+.} Bc5 (44... Ra3+ $11 45. Kc4 Ra4+ 46. Kc3 Ra3+ 47. Kc4 Ra4+ 48. Kc3) 45. Rd7+ $14 Kc8 $2 {[%mdl 8192]} ({Better is} 45... Kb6 $1 $14) 46. e6 $18 Ra1 47. e7 Bxe7 48. Rxe7 {KRB-KR} a6 49. bxa6 ({Weaker is} 49. Rxg7 axb5 50. Kb4 Rc1 $14) (49. Ra7 $18 Kb8 50. Rb7+ (50. Rxg7 axb5 51. Kd4 h4 $14) (50. Rxa6 Rxa6 51. bxa6 Ka7 $11) 50... Kc8 51. Ra7 (51. Rxg7 axb5 52. Kb4 Rc1 $14)) 49... Rxa6 $11 50. Bb7+ Kd8 51. Rxg7 Ra1 52. Be4 h4 53. Kd4 h3 54. Rh7 h2 55. Ke5 Re1 56. Rxh2 Ke7 57. Rh7+ Ke8 58. Ra7 Re2 59. Kf5 Kd8 60. Bd5 Re7 61. Ra8+ Kc7 62. Be6 Kd6 63. Rd8+ Kc7 64. Rd1 Rh7 65. Ke5 Rh5+ 66. Bf5 Rh2 67. Rc1+ Kb6 68. Kd4 Rd2+ 69. Bd3 Rh2 70. Rg1 Rh6 71. Be4 Rd6+ 72. Bd5 Kc7 73. Kc5 Rd7 74. Rg8 Rd8 75. Rg6 Rd7 76. Bc6 Re7 77. Rg8 Re5+ 78. Bd5 Re7 79. Ra8 Rd7 80. Ra1 Re7 81. Ra2 Rd7 82. Be6 {Ra7+ would kill now.} Re7 83. Kd5 Kd8 84. Ra8+ Kc7 85. Rc8+ Kb7 86. Rc2 Rc7 87. Rb2+ Ka7 88. Kd6 Rb7 89. Ra2+ Kb6 90. Bd7 Rb8 $1 91. Ra1 Rb7 92. Ra8 Ra7 93. Rh8 Rc7 94. Rg8 Kb7 95. Rg1 {White threatens Rb1+ and mate.} Kb8 $2 {[%mdl 8192]} (95... Rc3 $11) 96. Bc6 $1 Rh7 {[#]} 97. Rg8+ $1 Ka7 {[#]} 98. Kc5 $1 {[%csl Gc6][%cal Rg8a8] White mates.} Ka6 99. Rg1 {[%cal Rg1a1]} Ka7 100. Ra1+ Kb8 101. Ra8+ Kc7 102. Ra7+ Kc8 103. Rxh7 {What a fight!  Weighted Error Value: White=0.22 (precise) /Black=0.25 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "8.8"]
[White "Nepomniachtchi, Ian"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "C36"]
[WhiteElo "2773"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,39,0,0,0,0,0,0,8,8,15,22,0,0,0,105,112,112,110,193,180,168,168,162,155,136,161,155,162,351,339]} 1. e4 e5 2. f4 d5 3. exd5 exf4 4. Nf3 {[%cal Bg1f3,Bf3d4,Bd4e6][%mdl 32]} Nf6 5. Bb5+ c6 6. dxc6 Nxc6 7. Nc3 {C36: King's Gambit Accepted: 3 Nf3 d5.} Bd6 8. Qe2+ Be6 9. Nd4 {The position is equal.} O-O 10. Nxe6 {[#]} Qa5 $146 {[#]} ({Predecessor:} 10... Qb6 11. a4 a5 12. Nxf8 Re8 13. Qxe8 Nxe8 14. Nd7 Qc7 15. d4 Nxd4 16. O-O Nxb5 17. Nxb5 Qxd7 18. Bxf4 Bxf4 19. Rxf4 {½-½ (26) Reprintsev,A (2353)-Shkapenko,P (2424) Chess.com INT 2021}) 11. Nxg7 Kxg7 12. Bxc6 {Hoping for Qb5.} bxc6 {[#]} (12... Rae8 $11 13. Bxe8 Rxe8) 13. O-O $1 $16 Rae8 14. Qf3 Nh5 (14... Qh5 $16) 15. d4 ({Don't blunder} 15. Qxc6 $2 Bc5+ 16. Kh1 Re6 17. Qxe6 fxe6 $19) 15... Qf5 16. g4 Qg6 17. Kh1 ({Worse is} 17. Qxc6 Kh8 18. Qg2 Rg8 $11) 17... Nf6 18. Bxf4 Bxf4 19. Qxf4 Nxg4 $2 {[#]} (19... Re6 20. g5 Nd5 21. Nxd5 cxd5) 20. h3 $1 {White took control after the opening.  Weighted Error Value: White=0.02 (flawless) /Black=0.39} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.1"]
[White "Kosteniuk, Alexandra"]
[Black "Artemiev, Vladislav"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2516"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,118,5,4,8,0,5,8,13,0,0,0,0,0,0,0,0,0,0,-21,-24,-34,-20,-16,0,-6,-13,-6,-7,0,-7,0,0,-46,-37,-43,-23,-37,-13,-18,-25,-25,-32,-36,-35,-36,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-121,0,-80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,136,-10,0,-32,-36,-156,-158,-165,-110,-603,-396,-361,-462,-725,-789,-29995,-29996,-29996,-29997]} 1. e4 {Schachzwerg} c5 2. Nf3 e6 3. c3 {[%cal Bc2c3,Bc3c4][%mdl 32]} d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 Be7 7. O-O O-O 8. c4 {8.c4 scores better than 8.Be3.} Qc6 {B22: Sicilian: 2 c3.} 9. Qc2 {[#]} Rd8 $146 ({Predecessor:} 9... cxd4 10. Nxd4 Qe8 11. Nb5 Na6 12. Bf4 Bd7 13. Nd6 Qb8 14. Rd1 Bc6 15. Bg3 Rd8 16. Nxf7 Rxd1+ 17. Qxd1 {0-1 (48) Feuerstack,A (1814)-Kirchhoff,H (1828) Eckernfoerde 2001 EXT 2004 [Schachzwerg]}) 10. Rd1 Qb6 {[%cal Rc5d4] The position is equal.} 11. Be3 Nc6 {[%cal Rc5d4]} 12. dxc5 Rxd1+ 13. Bxd1 Bxc5 14. Bxc5 Qxc5 15. Nbd2 e5 16. Nb3 Qe7 17. Be2 a5 18. Re1 Bg4 19. h3 Bh5 20. Qc3 Bg6 21. a3 Ne4 22. Qe3 a4 23. Nbd2 (23. Bd3 $11 {feels stronger.}) 23... Nc5 $15 24. Bf1 {[%cal Rf3e5]} e4 25. Nh4 f5 {[%cal Bf7f5,Bf5f4,Bf4f3][%mdl 32]} 26. Nxg6 hxg6 27. Nb1 Qe5 28. Nc3 f4 29. Qc1 e3 30. fxe3 f3 {[%cal Of3f2]} 31. Qd1 Qg3 {Strongly threatening ...f2+.} 32. Qd2 {Inhibits f2+.} Ne5 (32... Rd8 $5 33. Qf2 Qxf2+ 34. Kxf2 Rd2+ 35. Kxf3 Ne5+ 36. Kg3 Rxb2 $11) 33. Rd1 Rf8 34. Qf2 $1 ({But not} 34. Qd5+ $2 Kh7 35. Qxc5 fxg2 $1 36. Qxf8 (36. Bxg2 $2 Nf3+ 37. Kf1 Nd2+ 38. Kg1 Nf3+ 39. Kf1 Rf5 $19) 36... Nf3+ 37. Qxf3 gxf1=Q+ 38. Kxf1 Qxf3+ 39. Kg1 Qg3+ 40. Kf1 Qf3+ 41. Kg1 Qxh3 $19) 34... Qg5 {White must now prevent ...fxg2.} 35. g3 b6 36. Rd5 Qe7 37. e4 g5 38. Rd1 (38. Qd4 $11 {remains equal.} f2+ 39. Kg2) 38... Qe6 ({Black should play} 38... g4 $1 $17 {[%cal Rg4h3] aiming for ...gxh3.} 39. h4 g5) 39. Qd4 {[#]} (39. Kh2 $11) 39... Qe8 {Black is much more active.} (39... g4 $1 $17 {[%cal Rg4h3]} 40. h4 Nf7) 40. Kf2 Kh7 41. Qe3 Qh5 42. Rd5 Re8 43. Qd4 g4 {Chess con chili.} 44. h4 Re6 45. Qe3 Qe8 46. Qg5 g6 47. Rd8 Qf7 48. Rd5 Qe8 49. Rd8 Qf7 50. Rd5 Ncd7 (50... Qe8 $11) 51. Qd2 (51. Nxa4 $16 Qe8 52. Nc3) 51... Qe7 52. Qe3 Nf6 53. Rb5 {[#]} (53. Rd4 $1 $15) 53... Ned7 $1 $17 {[%cal Be5d7,Bd7f6,Bf6e4][%mdl 32] Threatens to win with ...Nc5. Pair of Knights!} 54. Nd5 Nxd5 (54... Nxe4+ $19 55. Qxe4 Rxe4 56. Nxe7 Rxe7) 55. Rxd5 $4 {[%mdl 8192] This costs White the game.} (55. cxd5 $17 Rxe4 56. d6 Rxe3 57. dxe7 Rxe7 58. Rb4) 55... Nf6 56. Bd3 Nxe4+ ({Weaker is} 56... Nxd5 57. cxd5 Rd6 58. Qd4 $11) 57. Bxe4 Rxe4 {[%cal Be6e4,Be4e2,Be2f2][%mdl 32]} 58. Qc3 Re2+ 59. Kf1 {[#]} Rf2+ $1 {[%mdl 512] Weighted Error Value: White=0.39/Black=0.17 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.2"]
[White "Keymer, Vincent"]
[Black "Nepomniachtchi, Ian"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2664"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,129,18,27,17,33,19,47,24,22,6,21,-31,-18,-19,-16,-11,-16,-9,-29,-33,-8,-25,-24,-63,-62,-58,-61,-61,-72,-60,-68,-61,-57,-76,-81,-78,-70,-92,-89,-129,-120,-139,-143,-147,-148,-170,-167,-172,-112,-265,-236,-229,-200,-204,-204,-208,-126,-157,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-153,-60,-153,-153,-153,-153,-153,-153,-153,-153,-153,-1,-153,0,-36,-36,-36,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 {[%cal Bc1g5,Bg5h4,Bh4g3][%mdl 32]} h6 7. Bh4 c5 {7...Bf5 is setting a new trend.} 8. dxc5 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} Nbd7 9. e3 O-O 10. Be2 {White is slightly better.} g5 11. Bg3 Ne4 {[#]} 12. O-O $146 (12. Qd4 $11 Bxc3+ 13. bxc3) ({Predecessor:} 12. Rc1 Bxc3+ 13. bxc3 Ndxc5 14. Be5 Re8 15. Bd4 Be6 16. O-O Qa5 17. Ne5 Na4 18. Bd3 {1-0 (25) Moiseenko,A (2622)-Erenberg,A (2494) Israel 2021}) 12... Bxc3 $15 13. bxc3 Nxc3 {Pair of Knights!} 14. Qc2 Nxe2+ 15. Qxe2 Nxc5 16. Rfd1 Re8 17. Nd4 Bd7 18. Qf3 Ne4 19. Nf5 Qf6 20. Nd6 {Strongly threatening Nxe4.} Qxf3 21. gxf3 Nxd6 22. Bxd6 Be6 23. Bc5 Rec8 24. Bd4 Bh3 25. Rab1 b6 26. Rb5 Rc2 27. a4 Rac8 $1 28. Rxd5 {[#]} Rd2 $3 {[%cal Rd2d1][%mdl 512]} 29. Ra1 (29. Re1 f6) 29... Kh7 30. a5 {[#]} bxa5 ({Black should play} 30... Ra2 $3 $19 {[%mdl 512] ( -> ...Rxa1+)} 31. Rd1 Rxa5) 31. e4 $2 (31. Rdxa5 $17 Rdc2 32. Re1) 31... a4 {[%cal Oa4a3]} 32. Be3 Rxd5 33. exd5 $19 {[%mdl 4096] Endgame KRB-KRB} Rc4 34. d6 Rb4 35. Rd1 {Black must now prevent d7.} a3 (35... Rb7 $142 {Hoping for ...a3.} 36. Ra1 Kg6) 36. d7 $17 {[#]} Bxd7 37. Rxd7 {KRB-KR} a2 38. Rxf7+ Kg6 39. Rxa7 Rb1+ 40. Kg2 a1=Q 41. Rxa1 Rxa1 {KR-KB} 42. h3 ({White should try} 42. f4) 42... Kf5 (42... Ra4 $1 $17 43. Kg3 Kf5) 43. Kg3 {[#]} (43. h4 $1 $15) 43... Ra4 $1 44. Kg2 Rc4 45. Kg3 Ke5 46. Kg2 Ra4 47. Kg3 {[#]} Kd5 $2 (47... Rb4 $1 $17 {White should prevent ...Kf5.} 48. Bd2 Ra4 49. Bc3+ Kf5) 48. Kg2 $2 (48. h4 $1 $11) 48... Kc4 $2 (48... Rb4 $17 49. Kg3 Ke5) 49. f4 gxf4 50. Bxf4 Ra6 51. Kg3 Kd3 52. Kg4 Ra4 53. Kf5 h5 54. Bg5 Ra6 55. Bf6 Ke2 56. f4 Kf3 57. Be5 h4 58. Kg5 Kg3 {And now ...Ra5 would win.} 59. f5+ Kxh3 $2 {[%mdl 8192]} (59... Kg2 $11) 60. f6 {Mate.} Ra7 61. Kg6 Kg2 62. f7 Rxf7 63. Kxf7 h3 64. Bd6 h2 65. Bxh2 {[%mdl 32768] Weighted Error Value: White=0.23 (precise) /Black=0.15 (very precise) . An unexpected result.} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.3"]
[White "Niemann, Hans Moke"]
[Black "Esipenko, Andrey"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2642"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,118,17,20,7,31,0,14,12,8,0,0,-11,-22,-15,0,-6,0,0,0,-45,0,-13,-9,-18,2,-69,21,-32,27,22,36,46,27,22,43,0,0,0,0,-35,-20,-17,-8,-10,-10,-50,-34,-37,-30,-38,-34,-42,-40,-67,-59,-78,-60,-73,-63,-53,-61,-56,-45,-55,0,0,0,0,0,-33,-29,-35,-25,-76,-62,-78,-72,-77,-18,-93,0,0,0,-80,-91,-404,-406,-712,-709,-682,-663,-29972,-29973,-29973,-29974,-29974,-29975,-29970,-29971,-29976,-29977,-29976,-29977,-5114,-1060,-29976,-29976,-29976,-29975,-29972,-29975]} 1. c4 e5 {[%cal Be7e5,Be5e4][%mdl 32]} 2. g3 c6 3. d4 e4 4. a3 d5 5. Nc3 h6 6. Bg2 {A20: English Opening: 1...e5.} Nf6 7. f3 exf3 $1 8. Nxf3 {The position is equal.} Be7 9. O-O O-O 10. Nh4 {[#]} dxc4 $146 ({Predecessor:} 10... Re8 11. Nf5 Bf8 12. g4 Bxf5 13. Rxf5 dxc4 14. e4 Nbd7 15. g5 Nh7 16. gxh6 g6 {½-½ (42) Grischuk,A (2759)-Caruana,F (2812) Douglas 2019}) 11. e4 Bg4 12. Bf3 Bh3 13. Bg2 Bg4 14. Qd2 (14. Bf3 $1 $11 {is more appropriate.} Bh3 15. Bg2 Bg4) 14... Ne8 (14... Qd7 $1 $15 {might be stronger.}) 15. h3 Bh5 16. Qf2 Nd7 (16... Bxh4 $5 17. gxh4 Nd7 $11) 17. Be3 ({Better is} 17. Nf5 $11) 17... Bg5 ({Black should play} 17... Bxh4 $15 18. gxh4 Bg6) 18. Rae1 (18. Bxg5 $11 hxg5 19. Nf5) 18... Bxe3 (18... Bxh4 $15 19. gxh4 Bg6) 19. Qxe3 $11 Qg5 20. Qxg5 $1 hxg5 21. Nf5 Nc7 {[%cal Be8c7,Bc7e6,Be6c5,Bc5d3,Bd3e5,Be5c4,Bc4d6][%mdl 32]} 22. Nd6 (22. e5 $1 $14) 22... Ne6 23. d5 Nec5 24. Nxc4 (24. e5 $5 {[%cal Re5e6]}) 24... Nd3 25. Re3 N3e5 26. Nd6 Rab8 27. Rf2 Rfd8 28. Nf5 Nc4 29. Re1 {Strongly threatening dxc6.} Nde5 {Hoping for ...Nd3.} 30. Bf1 {Inhibits Nd3. Black must now prevent Bxc4.} Nd6 31. Re3 f6 32. Nd4 Bf7 33. Re1 c5 34. Nf5 Nxf5 35. Rxf5 a6 36. Na4 Rbc8 (36... Nd7 $15) 37. Nb6 Rc7 38. a4 Bg6 39. Rxe5 fxe5 40. a5 Be8 41. Bc4 (41. Kg2 $11 {remains equal.}) 41... Rd6 42. Rf1 g6 {To avoid Rf5} 43. Rc1 Bb5 (43... Kf8 $17) 44. Kf2 (44. g4 $11) 44... Kf8 (44... Rf6+ $17 45. Kg2 Kf8) 45. Kf3 $1 Kg7 46. Ke3 (46. Kg4 $11) 46... Rf6 {And now ...Rcf7 would win.} 47. b3 $2 {[%mdl 8192] Loses the game.} (47. Rd1 $17 {was the crucial defense.} Rcf7 48. d6 Rf3+ 49. Kd2) 47... Rcf7 $19 {( -> ...Rf2)} 48. Bxb5 (48. Be2 $142 Rf2 49. Nc4) 48... axb5 49. Rxc5 {[%mdl 4096] Endgame KRR-KRN} Rf3+ 50. Ke2 Rf2+ $1 51. Ke1 Ra2 52. d6 {[#]} Rff2 $1 53. Nd5 {[#]} Rh2 $1 {[%cal Rh2h1]} 54. Ne3 Rhe2+ 55. Kf1 Rxe3 56. d7 Rd2 57. Rd5 Rxd5 {Black mates.} 58. exd5 Rf3+ 59. Ke2 Rf8 {Weighted Error Value: White=0.53/Black=0.21 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.4"]
[White "Praggnanandhaa R"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2612"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,127,10,22,18,20,14,22,30,45,28,5,0,0,-9,-8,-9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-11,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,53,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Na4 O-O 7. e4 Nb6 8. Be3 Bg4 9. Be2 Nxa4 {has lost popularity (9...Nc6).} 10. Qxa4 c5 11. dxc5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} Bxb2 12. Rb1 Bc3+ 13. Kf1 Bc8 {[#]} 14. Bc4 $146 ({Predecessor:} 14. g3 Nc6 15. Kg2 Bg7 16. Rhd1 Qc7 17. Bb5 Bd7 18. Bf4 Qc8 19. Qb3 Be6 20. Qa3 {½-½ (52) Oms Pallisse,J (2522)-Lopez Martinez,J (2557) Lleida 2009}) 14... Nc6 15. Ke2 Bg7 16. Rhd1 Qc7 17. h3 Na5 18. Bb5 a6 19. Bd3 Be6 20. Kf1 Rfd8 21. Kg1 h6 22. Be2 Rxd1+ 23. Rxd1 Rd8 24. Rb1 Nc6 25. Bc4 Bxc4 26. Qxc4 Rd7 27. g3 Qa5 28. Kg2 g5 29. g4 e6 30. a4 Qc3 31. Qxc3 Bxc3 32. h4 f6 33. Kf1 Bb4 (33... a5 $11) 34. Ke2 (34. e5 $14) 34... a5 $11 {The position is equal.} 35. Rc1 Kf7 36. hxg5 hxg5 37. e5 Nxe5 38. Nxe5+ fxe5 {[%mdl 4096] Endgame KRB-KRB} 39. c6 bxc6 40. Rxc6 Kf6 41. Rc8 e4 42. Rc4 Rd3 43. Rxe4 Ra3 44. Bd4+ Kf7 45. Be3 Rxa4 46. Bxg5 Ra2+ 47. Kf3 Bd6 48. Rd4 Bc5 49. Rd7+ Kg6 50. Be3 Bxe3 51. Kxe3 {KR-KR} a4 {[%cal Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 52. Ra7 a3 53. f4 Ra1 {[#] Strongly threatening ...a2.} 54. Kf2 a2 {( -> ...Rh1)} 55. Kg2 {Prevents Rh1.} Kf6 56. Ra6 Kf7 57. g5 Kg7 58. Kh2 Rf1 59. Rxa2 Rxf4 60. Re2 Kg6 61. Rxe6+ Kxg5 62. Re3 Rh4+ 63. Rh3 Rxh3+ 64. Kxh3 {Weighted Error Value: White=0.02 (flawless) /Black=0.03 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.5"]
[White "Le, Quang Liem"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "2709"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,124,4,16,18,17,27,13,23,11,19,12,19,11,12,16,47,-5,0,0,0,0,0,0,0,-20,-16,-19,0,0,0,0,0,0,0,0,0,0,0,-6,-6,-6,-6,-65,-71,-77,-8,-8,-19,-23,-8,-10,-10,-87,-8,-472,-203,-1095,-901,-2196,-1886,-1763,-1500,-29950,-29950,-12327,-12675,-7055,-8064,-5098,-2817,-5092,-5081,-29974,-29976,-29976,-29975,-29975,-29976,-29976,-29977,-29977,-29978,-29978,-29978,-29978,-29978,-29982,-29983,-29983,-29984,-29984,-29985,-29984,-29985,-29986,-29987,-29987,-29987,-29987,-29988,-29988,-29989]} 1. d4 d5 2. c4 e6 3. Nf3 dxc4 4. e3 Nf6 5. Bxc4 a6 6. O-O c5 7. b3 b6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. Be2 Bb7 11. Nbd2 Nbd7 12. Nc4 O-O 13. Bb2 Rfd8 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} 14. Rac1 Kf8 $5 {[%mdl 4] [#] Leaves trodden paths.} 15. Ne1 $146 ({Predecessor:} 15. Kf1 Bd5 16. Nce5 Nxe5 17. Nxe5 Bb7 18. g4 Nd5 19. e4 Nf6 20. f3 h6 21. h4 {1-0 (44) Bareev,E (2665)-Svidler,P (2640) Elista 1997}) 15... Be7 {The position is equal.} 16. f3 Rac8 17. e4 b5 18. Na5 Ba8 {Threatens to win with ...Bb4.} 19. Nd3 {Inhibits Bb4.} Nc5 20. Ba3 (20. Ne5 $1 $14 Rxd1+ 21. Bxd1 (21. Rxd1 Ncxe4 22. fxe4 Bb4 $17)) 20... Nxd3 $11 21. Rxc8 Rxc8 22. Bxe7+ Kxe7 23. Bxd3 Nd7 24. Kf2 Ne5 {[%cal Of7f5]} 25. Ke3 f5 26. exf5 Nxd3 27. Rxd3 exf5 {[%mdl 4096] Endgame KRB-KRN} 28. b4 Rc2 {[%csl LRa2,LRg2]} 29. Rd2 f4+ 30. Kd3 Rxd2+ 31. Kxd2 {KB-KN} Bd5 32. Nb3 Kd6 33. Nc5 ({White should try} 33. Nc1 $11) 33... Bxa2 $15 34. Nxa6 {[#]} Bc4 ({Better is} 34... Kd5 $1 $17) 35. Nc5 $11 Bf1 36. g3 fxg3 37. hxg3 Kd5 38. Kc3 (38. Ke3 $11 {remains equal.}) 38... Be2 ({Black should play} 38... h6 $17) 39. f4 $2 {[%mdl 8192] Loses the game.} (39. Nb3 $1 $11) 39... h5 (39... Bg4 $142 {And now ...h5 would win.} 40. Nd3 Ke4) 40. Kd2 $2 (40. f5 Bg4 41. Ne6) 40... Bg4 $19 41. Kd3 Bf5+ 42. Kc3 g6 43. Nb7 {[#]} Ke4 $1 44. Nd6+ Kf3 45. Nxb5 Kxg3 {( -> ...h4)} 46. Nd6 Bd7 47. f5 gxf5 {...f4 is the strong threat.} 48. b5 {[#]} Bxb5 $1 {[%mdl 512] Black mates.} 49. Nxf5+ Kf4 50. Ne7 Kf3 51. Ng6 Be8 52. Nh4+ Kg4 53. Ng2 Kg3 54. Ne3 Bd7 55. Kd2 h4 {[%cal Bh5h4,Bh4h3,Bh3h2][%mdl 32]} 56. Ke1 h3 57. Nf1+ Kg2 58. Ne3+ Kg1 59. Nd1 h2 60. Nf2 Bb5 61. Nh3+ Kg2 62. Nf2 Ba6 {Weighted Error Value: White=0.70/Black=0.12 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.6"]
[White "Hansen, Eric"]
[Black "Giri, Anish"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2606"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,80,10,4,14,6,9,0,9,0,0,0,8,0,0,0,-7,0,33,0,0,-12,-8,-70,-18,-32,0,0,-4,-23,9,-56,-51,-43,-43,-45,-55,-48,-58,-159,-157,-161,-156,-157,-106,-102,-113,-112,-99,-108,-100,-122,-53,-79,-85,-228,-221,-206,-209,-339,-352,-402,-411,-449,-437,-551,-550,-656,-656,-843,-831]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c3 Ngf6 5. Qe2 a6 6. Ba4 b5 7. Bc2 Bb7 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 8. O-O g6 9. d4 Bg7 {The position is equal.} 10. Rd1 cxd4 $5 {[%mdl 4] A promising side line.} 11. cxd4 O-O 12. a3 Rc8 13. Nc3 Nb6 14. Bd3 {[#]} Nc4 $146 ({Predecessor:} 14... Re8 15. a4 b4 16. Nb1 a5 17. Nbd2 e6 18. Nb3 Ra8 19. Bg5 Qd7 20. Bxf6 Bxf6 {1-0 (52) Adams,M (2722)-Dominguez Perez,L (2725) Istanbul 2012}) 15. h3 (15. a4 $5 {[%cal Ra4b5]}) 15... Qb6 16. Bg5 h6 17. Bh4 (17. Bc1 $11) 17... e6 ({Better is} 17... Nh5 $15 18. Bxc4 (18. Bxe7 Rfe8 $17) 18... Rxc4) 18. Bg3 Rfd8 19. Rac1 Na5 20. Bc2 b4 21. Na4 (21. axb4 $11 Qxb4 22. Rb1) 21... Qb5 $15 22. Qxb5 axb5 23. Nb6 b3 24. Nxc8 bxc2 25. Ne7+ (25. Rxc2 $15 Rxc8 26. Rxc8+ Bxc8 27. e5 dxe5 28. Rc1) 25... Kf8 $17 26. Rxc2 Kxe7 27. e5 dxe5 (27... Ne8 $142 {Threatens to win with ...Bxf3.} 28. exd6+ Nxd6 29. Rc7+ Kf8) 28. Nxe5 Nd5 {Inhibits Rc7+.} 29. Rc5 Bxe5 30. dxe5 {[#]} Ba6 31. f4 {Black must now prevent Bh4+.} Rc8 (31... Ke8 $17 32. Bf2 Nc4) 32. Bh4+ Ke8 33. Rcxd5 {Loses the game.} (33. Rxc8+ $17 Bxc8 34. Rc1) 33... exd5 $19 34. Rxd5 Nc4 {Inhibits Rd6.} 35. b3 (35. Bf6 $142) 35... Ne3 ({But not} 35... Nxa3 $2 36. Rd6 Bb7 37. e6 $19) 36. Rd2 Bb7 37. g4 Nd5 {Black is clearly winning.} 38. Rd4 Rc3 39. Kh2 Rxb3 40. a4 b4 {Weighted Error Value: White=0.43/Black=0.12 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.7"]
[White "Ding, Liren"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "2799"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,43,27,31,27,30,59,31,33,25,24,37,46,37,36,8,32,4,43,35,34,23,30,21,28,27,26,18,10,16,20,21,13,19,55,58,56,55,55,62,55,38,71,77,65,31,35,14,10,5,7,9,9,0,0,0,8,0,29,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c5 3. cxd5 Qxd5 4. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b3][%mdl 32]} cxd4 5. Nc3 Qa5 6. Nxd4 {D06: Queen's Gambit: Symmetrical and Baltic Defences.} Nf6 {To avoid e4} 7. a3 (7. Nb3 Qc7 8. e4 Nc6 9. Be2 e6 10. O-O a6 11. Be3 Bd6 12. f4 e5 13. f5 O-O 14. Rc1 {½-½ (53) Ding,L (2766)-Mamedyarov,S (2747) Huaian 2016}) 7... g6 {[#]} 8. Nb3 $146 {White is slightly better.} (8. b4 $5 {[%cal Rb4a5]} Qd8 9. Bf4 $14) ({Predecessor:} 8. b4 Qd8 9. Bb2 Bg7 10. e3 O-O 11. Be2 Nbd7 12. O-O Nb6 13. b5 e5 14. Nb3 {1-0 (53) Girya,O (2432)-Gleizerov,E (2468) Cheliabinsk 2021}) 8... Qh5 9. Bf4 {Black must now prevent e4.} Bg7 10. e4 {[#] Hoping for Be2.} Qxd1+ 11. Rxd1 {Strongly threatening Bxb8.} O-O 12. Be2 Nc6 13. O-O (13. Bb5 {keeps more tension.} Be6 14. Nc5 Rfc8 15. Nxe6 fxe6 16. O-O) 13... Rd8 (13... b6 {with more complications.} 14. Bb5 Bb7 15. Nd5 Nxd5 16. exd5 Ne5) 14. Rxd8+ Nxd8 15. Rd1 Be6 16. Nc5 b6 17. Nxe6 Nxe6 18. Be3 Ne8 19. Nd5 Bxb2 20. Nxe7+ Kf8 21. Nd5 Bxa3 22. Ra1 $1 Bb2 23. Ra2 Bd4 {[#]} 24. Nxb6 $1 {[%mdl 64] Pin} Rd8 25. Bh6+ {A strong pair of Bishops.} Bg7 26. Bxg7+ Kxg7 27. Nd5 Rd7 28. g3 Nd6 29. f3 Nd4 30. Kf2 f5 31. Bd3 fxe4 32. Bxe4 Nc6 33. Ra6 Ne5 34. Ke3 Nxe4 {The position is equal.} 35. Kxe4 Nxf3 36. Kxf3 {And now Nf4 would win.} Rxd5 37. Rxa7+ {Weighted Error Value: White=0.07 (flawless) /Black=0.06 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "9.8"]
[White "Duda, Jan-Krzysztof"]
[Black "Aronian, Levon"]
[Result "0-1"]
[ECO "D39"]
[WhiteElo "2760"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,86,5,44,39,30,29,39,50,45,38,47,39,47,45,40,32,43,40,38,39,47,32,57,-102,-87,-91,-94,-110,-110,-105,-71,-109,-95,-235,-224,-262,-267,-255,-209,-206,-191,-212,-193,-463,-198,-191,-167,-222,-245,-321,-310,-306,-293,-278,818,818,818,810,816,-456,-456,-449,-434,-375,-375,-375,-375,-520,-520,-457,-443,-519,-513,-505,-497,-447,-418]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 b5 7. a4 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} c5 $1 {[%mdl 4] is more profitable than 7...c6 at the moment.} 8. axb5 cxd4 9. Nxd4 {White is slightly better.} h6 10. Bxf6 Qxf6 11. Bxc4 O-O 12. O-O {[%cal Oe4e5]} Bb7 {[#]} 13. Qb3 $1 {[%cal Rd4e6] Hoping for Nxe6.} Bc5 {[#]} (13... Qe7 14. Rfd1) 14. Nxe6 fxe6 15. Bxe6+ Kh8 16. Bd5 $1 Qe7 {[#]} 17. Kh1 $146 (17. Rad1 $1 $14 {was forced to keep a grip.}) ({Predecessor:} 17. Rad1 Bb6 18. Na4 Qc7 19. Bxb7 Qxb7 20. Qe6 Ba5 21. Rd5 Qf7 22. Qxf7 Rxf7 23. Rfd1 {1-0 (40) Basso,P (2539)-Ankit,R (2447) Cattolica 2019}) 17... Bxd5 $1 $17 (17... Rxf2 18. Rxf2 Bxf2 19. Rf1 $16) (17... Bxf2 $2 18. Qc2 $16) 18. Nxd5 Qf7 (18... Qxe4 $6 19. Nc7 $15) 19. f4 Nd7 20. Rac1 Bb6 21. Qf3 Rad8 22. Rc6 (22. Rcd1 $17) 22... Qe8 $19 {[%cal Od7e5] Threatens to win with ...Ne5!} 23. Rd6 Bc5 $1 24. Nc7 Qe7 ({Resist} 24... Bxd6 25. Nxe8 Rfxe8 26. e5 $16) 25. Re6 Qf7 {And now ...Nb8 would win.} 26. Qc3 {[#] Rxh6+ is the strong threat.} Bb6 $1 27. Rxh6+ Kg8 28. Rc6 Nf6 {[%cal Bd7f6,Bf6g4,Bg4e3][%mdl 32]} 29. Qc2 (29. Rxf6 $142 Qxf6 30. Qc4+ Qf7 31. Nd5) 29... Ng4 $40 {[%mdl 128] Black has strong attack.} 30. Ne6 Ne3 $1 {[%csl LRc2,LRf1]} ({Worse is} 30... Qh5 31. h3 Ne3 32. Qc3 $11 (32. Qb3 Nxf1 33. Nxd8+ Kh8 $17)) 31. Qe2 {aiming for Re1.} Nxf1 {Really sharp!} 32. Qxf1 Qxe6 {[%mdl 8192]} 33. Rxe6 $18 Rxf4 {[#]} 34. Re8+ $3 {[%mdl 512]} Kh7 (34... Rxe8 35. Qxf4) 35. Qc1 $4 {[%mdl 8192] [#]} (35. Qe2 $18 {[%cal Re2h5]} Rxe8 36. Qh5+ Kg8 37. Qxe8+ Rf8 38. Qe6+ Kh7 39. Qc4) 35... Be3 $1 $19 {[%mdl 512]} 36. Rxd8 (36. g3 Bxc1) 36... Bxc1 {[%cal Rf4f1][%mdl 4096] Endgame KRB-KR} 37. g3 Rxe4 38. Rd7 Be3 39. Kg2 Rb4 {Black is clearly winning.} 40. Kf3 Bb6 41. Rd5 Rxb2 42. h4 Rb3+ 43. Kg2 Rc3 {Quite a comeback for Black.  Weighted Error Value: White=0.49/Black=0.07 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.1"]
[White "Artemiev, Vladislav"]
[Black "Aronian, Levon"]
[Result "1-0"]
[ECO "E51"]
[WhiteElo "2700"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "173"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,173,0,0,0,2,0,0,0,6,0,11,0,0,0,0,0,0,0,0,0,15,0,31,29,14,-20,-18,-16,-12,-14,79,79,79,79,84,90,83,86,78,79,88,87,113,109,116,120,110,108,111,102,103,0,106,108,116,108,108,108,108,103,104,72,108,75,108,75,108,108,108,83,98,81,103,67,103,96,96,74,107,0,96,86,97,97,122,88,88,46,46,46,114,110,123,52,6255,6255,6255,6255,6179,0,1654,193,6125,6103,6092,6085,29970,29972,29972,6023,29970,0,29971,29973,29973,29974,29971,29957,29969,29970,29973,6008,5994,5994,5983,5954,5781,5531,5427,0,5781,0,5251,0,4543,4555,29964,5137,4037,4037,3904,3904,2958,1214,1214,0,2458,1906,7023,1214,1214,1214,29966,1112,29970,1041,29971,0,29974,29974,29970,29967]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 O-O 6. Bd2 b6 7. Rc1 Bb7 8. cxd5 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} exd5 9. Bd3 Be7 10. O-O {The position is equal.} c5 11. dxc5 (11. Ne5 Nc6 12. Ne2 Rc8 13. Nxc6 Rxc6 14. dxc5 bxc5 15. Bc3 Qb8 16. Qa4 d4 17. exd4 Ng4 18. Ng3 Rh6 19. Qd7 Rxh2 20. d5 Qf4 21. Qf5 {0-1 (83) Artemiev,V (2699)-Aronian,L (2782) chess24.com INT 2021}) 11... bxc5 12. Re1 Na6 13. Bb1 Rb8 14. b3 c4 {[#]} 15. Qe2 $146 ({Predecessor:} 15. bxc4 dxc4 16. e4 Ba3 17. Bf4 Rc8 18. Nb5 Qxd1 19. Rcxd1 Bb4 20. Re2 Rfd8 21. Rc1 {½-½ (29) Reichgeld,M (2191)-Tanis,C (2231) ICCF email 2014}) 15... Nc5 16. bxc4 dxc4 17. Nd4 Re8 18. Red1 ({Avoid the trap} 18. Qxc4 $2 Ba6 19. Ncb5 Bxb5 20. Nxb5 Qxd2 $19) 18... Qb6 19. Qxc4 Ba6 20. Nd5 Bxc4 21. Nxb6 Bxa2 22. Bxa2 $16 {[%cal Bb1a2,Ba2c4,Bc4e2,Be2b5][%mdl 32]} axb6 23. Nc6 Ra8 24. Nxe7+ Rxe7 25. Bc4 Rd7 26. Bc3 Kf8 27. Bd4 Rc8 28. Be2 Rcd8 29. Rb1 {To avoid Nb3} Nd5 30. Bb5 Rd6 {[%cal Od5c3]} 31. Be5 {To avoid Nc3. A strong pair of Bishops.} Re6 32. Bd4 Red6 $1 {[%cal Od5c3] Strongly threatening ...Nc3!} 33. Rdc1 {To avoid Nc3} Nc7 34. Bc4 {[%cal Ob1b6]} ({Don't play} 34. Bxc5 bxc5 35. Be2 (35. Rxc5 $2 Nxb5 36. g4 Rd1+ 37. Rxd1 Rxd1+ $19) 35... Ne6 $14) 34... N7e6 35. Bxe6 Nxe6 36. Bxb6 Ra8 {Prevents Ba5.} 37. e4 h5 38. Be3 (38. h4 {looks sharper.} g6 39. Be3 Ra2 40. Rc8+ Ke7 41. Rbb8) 38... g6 39. Ra1 (39. Rc4 {is more complex.} Rd7 40. h4 Rd3 41. Rb5 Ra2 42. Kh2) 39... Rxa1 40. Rxa1 {[%mdl 4096] Endgame KRB-KRN} Kg7 41. Kf1 Rc6 42. Ra4 Rc2 43. h3 Kf6 44. g3 Kg7 45. Kg2 Rb2 46. Kf1 Rc2 $1 47. f4 Rc3 48. Ke2 {f5 is the strong threat.} Rc2+ 49. Kf3 Rc3 50. f5 (50. e5 $16) 50... gxf5 $14 51. exf5 Nc7 (51... Ng5+ $1 $14 52. Ke2 f6) 52. Ke4 {Bd4+ would kill now. White is more active.} Nb5 53. Bf4 {To avoid Nd6+} ({White should play} 53. Ra6 $16) 53... Ra3 $2 {[%mdl 8192]} (53... Rb3 $14 54. Kd5 Nc3+ 55. Kc4 Nxa4 56. Kxb3 Nb6) 54. Rxa3 $18 Nxa3 {KB-KN} 55. Be5+ Kh6 56. Bf4+ (56. Bc3 $142 Nb5 57. Bf6) 56... Kg7 57. Bc1 $2 (57. Bd2 f6 58. Bb4) 57... Nb5 (57... Nc4 58. Kd5 Nb6+ 59. Ke5 Nc4+ 60. Kd5 Nb6+ 61. Kd6 Kf6) 58. Bb2+ Kh6 59. Ke5 {Threatening mate with Kf6.} Kg7 60. Kd5+ Kh6 61. Bc1+ (61. Kc5 $142 Nc7 62. Kc6 Na6 63. Ba3 Kg5 64. Kb7 Kxf5 65. Kxa6 Kg5 66. Kb5) 61... Kg7 62. Bb2+ Kh6 63. Kc5 Na7 64. Bf6 Nc8 65. Kc6 Kh7 66. Bd8 Kg8 67. Kc7 (67. f6 $142 Na7+ 68. Kc5 Kh7 69. Be7 Kg6 70. Kb6 Nc8+ 71. Kb7 Nd6+ 72. Bxd6 Kxf6 73. Kc6) 67... Na7 68. Kb6 Nc8+ 69. Kc5 Kf8 70. Bf6 Kg8 71. Kc6 $2 (71. Kd5 $18 Nb6+ 72. Kc6) 71... Na7+ $2 {[%mdl 8192]} (71... Kh7 $11 72. g4 hxg4 73. hxg4 Kg8) 72. Kc5 Nc8 $1 73. Bd8 $2 (73. Kd5 $18 Nb6+ 74. Kc6) 73... Kg7 $2 {[%mdl 8192]} (73... Kf8 $11) 74. Kd5 Na7 75. Bb6 (75. Be7 $142 Nb5 76. Ke5 Nc3 77. Bf6+ Kh6 78. g4 hxg4 79. hxg4 Ne2 80. Ke4) 75... Nb5 76. Kc6 Na3 77. Bd4+ Kh6 78. Be3+ (78. Kd5 $142 Kg5 79. Bc5) 78... Kg7 79. Bd4+ (79. Kd5 $142 Nb5 80. Ke5) 79... Kh6 80. Kd5 {Threatens to win with Be3+.} Nb5 81. Be3+ (81. Kc5 $142 Na3 82. Bf2) 81... Kh7 82. Bd2 {White threatens Bb4 and mate.} Kg7 83. Kc5 (83. Bb4 $142 f6 84. Kc5 Nc7 85. Kc6 Na6 86. Bd6 Kh6 87. Bf4+ Kh7 88. Kb5) 83... Na7 84. Bc3+ (84. Bb4 $142 Kf6 85. Kb6 Nc8+ 86. Kc7 Na7 87. Bc5 Nb5+ 88. Kc6 Kxf5 89. Kxb5) 84... Kh6 85. Bf6 $2 (85. Bb4 {mates} Kg5 86. Kb6 Kxf5 87. Kxa7 Ke4 88. h4 Kf3 89. Bd6 Ke4 90. Kb6) 85... Kh7 $2 {[%mdl 8192] [#]} (85... Nc8 $11 86. g4 Kh7 87. gxh5 Kh6) 86. Be7 Nc8 87. f6 {Weighted Error Value: White=0.44/Black=0.27 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.2"]
[White "Mamedyarov, Shakhriyar"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2767"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,35,0,0,-27,-39,-44,-24,-32,-33,-43,-20,-52,-42,-41,-47,-51,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6 6. e4 Bb4 7. Bxc4 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Nxe4 $1 8. O-O Nf6 9. Bg5 {[#] Black has an edge.} h6 $146 ({Predecessor:} 9... O-O 10. Bd3 Be7 11. Re1 Nbd7 12. Qe2 b6 13. Rad1 Bb7 14. Bb1 Nd5 15. Qe4 g6 {½-½ (37) Gozzoli,Y (2602)-Yu,R (2497) Chess.com INT 2021}) 10. Bh4 Be7 11. Ne5 Nbd7 12. Nxf7 Kxf7 13. Bxe6+ $1 {[%mdl 64] [#] Decoy} Kxe6 (13... Kf8 $1 $15) 14. Qb3+ $1 $11 {The position is equal.} Kf5 $1 15. Qc2+ Ke6 $1 16. Qb3+ $1 Kf5 $1 17. Qc2+ Ke6 $1 18. Qb3+ $1 {Weighted Error Value: White=0.04 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.3"]
[White "Giri, Anish"]
[Black "Ding, Liren"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2772"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,45,0,-6,-6,13,4,17,0,0,5,0,7,-2,6,7,26,13,15,0,61,68,77,83,77,85,84,69,76,87,108,77,109,59,177,172,171,169]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Nc6 6. e4 dxe4 {A07: Réti Opening: New York and Capablanca Systems.} 7. dxe4 Qxd1 8. Rxd1 Bg4 {The position is equal.} 9. c3 {Inhibits Nd4.} Nf6 10. Nbd2 $5 {[%cal Bb1d2,Bd2c4,Bc4b2][%mdl 4] [#] Exploring less charted territory.} O-O $146 ({Predecessor:} 10... O-O-O 11. Re1 Bh6 12. Nc4 Bxc1 13. Raxc1 Bxf3 14. Bxf3 Ne8 15. Rcd1 Nd6 16. Bg4+ Kb8 17. Nxd6 Rxd6 18. Rxd6 cxd6 {1-0 (34) Giri,A (2772)-Shankland,S (2708) Wijk aan Zee 2022}) 11. Re1 Rad8 12. Nc4 Rfe8 13. h3 Bc8 14. b4 b5 ({Better is} 14... Rd3 $11) 15. Nb2 $1 $14 a5 {[#]} 16. a4 $1 {[%cal Ba2a4,Ba4b5,Bb5c6][%mdl 32]} axb4 17. axb5 bxc3 18. bxc6 {And now Na4 would win.} cxb2 19. Bxb2 Rd6 20. Nxe5 ({But not} 20. Bxe5 $6 Rxc6 21. Nd4 Rc3 $11) 20... Nh5 {[#]} 21. Ra8 $1 {White is more active.} Bd7 (21... Rde6 22. Rb1) 22. Rea1 $18 ({And not} 22. cxd7 Rxa8 23. Nxf7 Rxd7 $15) 22... Bc8 {[#]} 23. R1a7 $1 {Weighted Error Value: White=0.06 (flawless) /Black=0.18 (very precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.4"]
[White "Carlsen, Magnus"]
[Black "Hansen, Eric"]
[Result "0-1"]
[ECO "C99"]
[WhiteElo "2865"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 35,65,38,35,18,23,20,26,-7,0,-14,-2,-20,-15,-33,-8,-42,-4,-8,0,19,10,0,28,25,18,-132,-137,-119,-107,-252,-100,-527]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 15. Be3 a4 16. Nbd2 Nb4 17. Bb1 Bd7 18. a3 Nc6 19. Qe2 {C99: Closed Ruy Lopez: Chigorin Defence: 11 d4 Qc7 12 Nbd2 cxd4.} Qb7 20. Bd3 Rab8 21. Rec1 {[#] White has an edge.} exd4 $146 ({Predecessor:} 21... Rfc8 22. Rc2 exd4 23. Bxd4 Nxd4 24. Nxd4 Rxc2 25. Bxc2 Re8 26. Bd3 b4 27. axb4 Qxb4 {½-½ (40) Theissen,R-Wengenroth,L Koblenz 1992}) 22. Nxd4 Ne5 $1 23. Bc2 Rfe8 24. Re1 h6 25. Rad1 Bf8 26. Bb1 b4 27. f4 Ng6 28. Bd3 bxa3 29. bxa3 Qb2 {[%cal Og6f4]} 30. Rb1 {[#]} (30. Nc2 $11) 30... Nxf4 $1 $17 {[%mdl 512]} 31. Qf1 Qc3 {Black is much more active.} 32. Bb5 {[#]} (32. Rxb8 $17 {was worth a try.} Rxb8 33. Bxf4 Qxd4+ 34. Be3) 32... Ng6 $2 (32... N4d5 $1 $19 {[%cal Rd5e3][%mdl 512]} 33. Bf2 Qxd2) 33. Bxa4 $2 {[%mdl 8192] Weighted Error Value: White=0.37/Black=0.17 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.5"]
[White "Abdusattorov, Nodirbek"]
[Black "Le, Quang Liem"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2651"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,127,31,24,25,35,17,17,20,16,20,22,17,86,83,108,99,103,111,106,121,100,74,130,130,139,118,102,109,131,141,144,127,129,132,161,137,145,176,201,195,221,220,228,232,244,204,262,243,349,235,310,308,306,301,302,303,294,252,252,241,237,227,237,236,246,239,274,274,274,274,292,292,292,292,292,292,318,318,299,242,325,310,370,362,471,466,448,304,12829,12830,12831,12831,12832,12831,12831,12831,12833,12833,12838,12839,12839,12839,12840,12840,12841,12841,12841,12842,12842,12843,12843,12843,12843,12844,12844,12843,12847,12847,12848,12848]} 1. c4 e6 2. Nc3 d5 3. d4 a6 4. cxd5 exd5 5. Nf3 Nf6 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. Qb3 {next Bxf6 is good for White.} Nbd7 8. e3 {The position is equal.} b5 9. Qc2 {[#]} Be7 $146 ({Predecessor:} 9... h6 10. Bh4 Be7 11. Bd3 O-O 12. O-O Rc8 13. a4 c6 14. axb5 cxb5 15. Qb3 Qb6 {0-1 (46) Sarana,A (2636)-Maghsoodloo,P (2671) Chess.com INT 2019}) 10. Bd3 Rc8 {[#]} (10... c5 $11) 11. a4 $1 $16 b4 12. Ne2 {White is more active.} (12. Bxa6 $6 bxc3 13. Bxc8 Qxc8 $11) 12... c5 13. Bxf6 (13. Bxa6 $2 b3 14. Qc3 Ne4 15. Bxc8 (15. Bxe7 $2 Kxe7 16. Bxc8 Nxc3 $19) 15... Nxc3 16. Bxd7+ Qxd7 $17) 13... Bxf6 14. Bxa6 Rc7 15. dxc5 (15. Bb5 $6 cxd4 16. Qd2 dxe3 17. fxe3 O-O $11) 15... O-O (15... Rxc5 $142 16. Qd2 Qa5) 16. c6 b3 17. Qd2 ({Resist} 17. Qc1 Nb8 18. Bb7 Bg4 $16) 17... Rxc6 18. Bd3 Nc5 19. Nfd4 {[%cal Bf3d4,Bd4e2,Be2f4,Bf4d3,Bd3e5][%mdl 32]} Nxd3+ 20. Qxd3 Rc4 21. O-O ({Much weaker is} 21. Qxb3 $6 Qa5+ 22. Kf1 Rb4 $11) 21... Bg4 22. Qxb3 Bxe2 23. Nxe2 Qa5 24. Nf4 Be5 25. Nd3 Rb8 26. Qa3 Bf6 27. b4 Qa7 28. Rac1 {To avoid Rc3} Be7 (28... g6 $142 29. a5 Be7) 29. Qb3 Qa6 30. Ne5 Rcxb4 31. Qxd5 Rf8 32. Nc6 Rb7 33. Qc4 Qxc4 34. Nxe7+ Rxe7 35. Rxc4 $18 {[%mdl 4096] Endgame KRR-KRR} Ra7 36. Ra1 Rb8 37. h4 g6 38. a5 Ra6 39. Rc5 {Inhibits Rb5.} Rb2 40. h5 Kg7 41. hxg6 hxg6 42. Ra4 Rd2 43. g3 Rb2 44. Kg2 Rd2 45. Rc7 g5 46. Rc5 {Inhibits Rd5.} Rf6 47. Kh3 {[#] And now a6 would win.} ({Not} 47. Rxg5+ Kh6 48. Rg8 Kh7 $18) 47... Rfxf2 {aiming for ...f5.} 48. Kg4 {Inhibits f5+. Threatens to win with a6.} Kh6 $2 (48... Rd7 49. Rxg5+ Kf6) 49. a6 {White is clearly winning.} Ra2 50. Rxa2 Rxa2 {KR-KR} 51. Rc6+ Kg7 52. Kxg5 Ra3 53. Kf4 Kf8 54. e4 {[%cal Be3e4,Be4e5][%mdl 32]} Kg7 55. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} Ra5 56. e5 Ra4+ 57. Kf5 Ra1 58. g5 Rf1+ 59. Ke4 Re1+ 60. Kd5 Rd1+ 61. Kc5 Re1 62. a7 Rxe5+ 63. Kb6 Re8 64. Kb7 {Weighted Error Value: White=0.11 (very precise) /Black=0.22 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.6"]
[White "Esipenko, Andrey"]
[Black "Praggnanandhaa R"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2714"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,22,18,14,39,51,45,32,44,29,67,62,79,60,73,74,66,52,74,78,72,72,72,57,39,70,47,22,43,41,13,-22,-9,-135,-145,-137,-128,-130,-141,-140,-130,-149,-137,-164,-172,-246,-245,-243,-155,-200,-195,-191,-181,-204,-204,-236,-231,-381,-308,-296,-265,-317,-327,-333,-309,-296,-287,-654,-646,-2341,-921,-29989,-29990,-29992,-29990]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. a4 {[#] B31: Sicilian: 2...Nc6 3 Bb5 g6.} g5 $146 ({Predecessor:} 7... a5 8. Na3 Qc7 9. Nc4 Be6 10. d3 h6 11. b3 Ne7 12. Bb2 Bxc4 13. bxc4 O-O 14. Ra3 Rae8 {0-1 (118) Jones,G (2702)-Le,Q (2704) Hengshui 2019}) 8. d3 g4 9. Nfd2 {White is slightly better.} Be6 10. Nc4 Ne7 11. Be3 b6 $1 {[#]} 12. a5 $1 {aiming for axb6.} Rb8 13. axb6 axb6 14. Nbd2 Qc7 15. Rf1 Ng6 16. f3 h5 17. Qe1 O-O {[%cal Bh8f8,Bf8a8,Ba8a2,Ba2b2,Bb2c2][%mdl 32]} 18. fxg4 hxg4 19. Bg5 f6 20. Be3 Ra8 21. Qg3 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 22. Rxa8 {White is now going downhill.} (22. Bxc5 $11 {was the only way to keep the balance.} bxc4 23. Bxf8 Rxa1 24. Rxa1 Nxf8 25. Nxc4) 22... Rxa8 $17 23. Na3 c4 $36 {[%mdl 2048] Keeping White busy.} 24. dxc4 b4 25. Nab1 Ra2 26. Nb3 Rxb2 27. N1d2 Rxc2 {[%cal Og6f4]} 28. Nc5 (28. Nd4 $142 Nf4 29. Qh4 Nh3+ 30. gxh3 exd4 31. Bf4) 28... Bc8 29. Qe1 Qd6 30. g3 {[#]} (30. Qd1 $17 Rc3 31. Ndb3 Qxd1 32. Rxd1) 30... Bf8 $1 $19 {[%cal Oc2d2] Strongly threatening ...Rxd2!} 31. Ncb3 Kg7 32. Qf2 Be7 {Active counter play!} 33. Ra1 Be6 34. Bc5 (34. Qf1 $142) 34... Qd8 35. Bxe7 Nxe7 (35... Qxe7 36. Ra7 Bd7 37. Qe3 $15) 36. Qc5 Bf7 (36... Rb2 37. Qxb4 Rc2 38. Qc5 $17 (38. Ra7 Kf7 $17)) 37. Qxb4 c5 38. Qa5 (38. Qxc5 Rxd2 39. Nxd2 Qxd2 $19) 38... Qd3 {Threatens to win with ...Qe3+.} ({Less strong is} 38... Qh8 39. Qc7 Qe8 40. Qd6 $16) 39. Rf1 $2 (39. Qxc5 Rxd2 40. Nxd2 Qxd2 41. Rf1) 39... Qe3+ ({Inferior is} 39... Qe2 40. Qxc5 Ng8 41. Rf2 Qe1+ 42. Rf1 $11) 40. Kh1 Bxc4 ({Weaker is} 40... Qe2 41. Qxc5 Ng6 42. Rf2 Qe1+ 43. Rf1 $11) (40... Bg6 $142 41. Qa8 Rb2) 41. Qd8 Kf7 42. Ra1 Bxb3 {Weighted Error Value: White=0.60/Black=0.22 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.7"]
[White "Nepomniachtchi, Ian"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2773"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,67,3,23,21,12,1,25,19,95,94,87,89,85,81,119,89,89,31,127,118,157,146,145,113,192,193,187,173,175,168,240,259,254,248,258,229,302,301,246,216,210,203,312,187,170,172,347,277,247,244,472,458,448,455,557,548,546,529,513,505]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. Nc3 d6 6. d4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} Bg4 7. Bb5 {And now d5 would win.} exd4 8. Qxd4 {[#] White has an edge.} Qd7 $146 {[#]} (8... Nd7 $11 9. Qa4 Nb6 10. Bxc6+ bxc6 11. Qxc6+ Bd7) ({Predecessor:} 8... Bxf3 9. gxf3 a6 10. Bxc6+ bxc6 11. Rg1 g6 12. f4 Bg7 13. Qc4 Qd7 14. Be3 O-O 15. Rxg6 {1-0 (29) Ozates,T (2217)-Terletsky,O (2154) Chess.com INT 2022}) 9. Qa4 $1 $16 Bxf3 10. gxf3 a6 11. Be3 Rd8 12. Bxc6 (12. Be2 {feels hotter.} d5 13. Nxd5 Nxd5 14. O-O-O Qe6 15. exd5 Rxd5 16. Rxd5 Qxd5 17. Rd1) 12... Qxc6 13. Qb3 ({White should try} 13. Qa5 $16) 13... Be7 (13... d5 $14 14. O-O-O dxe4) 14. Rg1 g6 15. O-O-O b5 16. Bd4 {White is more active.} Rf8 (16... Qc4 $16) 17. Bxf6 Bxf6 {[#]} 18. Nd5 $36 {[%mdl 2048] Keeping Black busy.} Bh8 19. f4 Qc4 (19... Qc5 $142 20. e5 dxe5) 20. Qxc4 $18 bxc4 21. Nxc7+ Kd7 22. Nxa6 c3 23. b4 {[%cal Bb2b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Kc6 24. a4 {Threatens to win with Kb1.} Kb6 25. b5 d5 (25... Ka5 $142 26. Kb1 d5) 26. Rxd5 ({Less strong is} 26. exd5 Rc8 27. d6 Rc4 $14) (26. e5 $142) 26... Rxd5 27. exd5 {[%mdl 4096] Endgame Strongly threatening Rd1. KRB-KRN} Ka5 $2 (27... Rc8) 28. Re1 Kxa4 29. Nc7 Rd8 (29... Ka5 30. d6 Rd8) 30. b6 {Hoping for Re8. White is clearly winning.} Ka5 31. b7 {Black must now prevent Re8.} Rb8 32. Re8 Rxb7 33. d6 ({Not} 33. Rxh8 Rxc7 34. Rxh6 Re7 $14) 33... Bf6 34. Ra8+ {Weighted Error Value: White=0.13 (very precise) /Black=0.50} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "10.8"]
[White "Kosteniuk, Alexandra"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2516"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,18,18,19,28,0,0,5,0,0,0,0,0,0,0,2,0,0,0,0,0,-23,10,14,10,-7,-16,-22,-14,-25,-16,-21,0,-23,0,0,0,0,0,0,0,0,0,0,0,-75,-35,-43,-16,-30,0,0,0,-3,0,0,48,47,32,0,18,-14,0,-27,0,-5,0,-625,-623,-826,-859,-1008,-33,-39,-36,-12831,-1048,-29998,-29999,-29999]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 Ngf6 5. O-O e6 6. Re1 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} a6 {Strongly threatening ...b5.} 7. c4 {Prevents b5.} Be7 8. Nc3 {The position is equal.} O-O 9. d4 cxd4 $1 10. Nxd4 Ne5 $5 {[%mdl 4] Leaves trodden paths.} 11. Qe2 Qc7 12. Bb3 $1 Re8 {[#]} 13. Kh1 $146 ({Predecessor:} 13. h3 Bd7 14. f4 Ng6 15. Qf3 e5 16. Nde2 exf4 17. Nxf4 Ne5 18. Qf2 Qc6 19. Ncd5 Nxd5 20. cxd5 {½-½ (26) Cziko,E (2442)-Barclay,A (2422) ICCF email 2021}) 13... Bd7 14. f4 Nc6 15. Nf3 Rac8 16. e5 Ng4 17. Ng5 Bxg5 18. exd6 Qxd6 {[%cal Oe6e5]} 19. Ne4 Qc7 20. Nxg5 e5 21. c5 Nh6 22. Qh5 {[%cal Rg5f7]} Bg4 23. Qh4 Nd4 24. Nxf7 Nxf7 {Pair of Knights!} 25. Qxg4 Nxb3 26. axb3 Qxc5 27. f5 (27. Bd2 $11) 27... Qb6 28. b4 Qf6 29. Qe4 Nd6 30. Qd5+ Kh8 31. Bd2 Rcd8 32. Bc3 {[%cal Rc3e5]} Nxf5 (32... h5 $11) 33. Qxb7 $14 Re6 34. Rf1 {Qe4 is the strong threat.} Qg6 35. Rfd1 Rde8 {[%cal Of5g3]} 36. Rd7 h6 37. Kg1 Rf6 {And now ...Nh4 would win.} 38. Re1 $2 {[%mdl 8192]} (38. Qe4 $11) 38... Nh4 $1 $19 {Hoping for ...Nf3+.} 39. Kh1 Ref8 40. Rdd1 Rf2 $2 (40... R6f7 $1 $19 {[%cal Rf7b7]} 41. Qd5 Rd7 $3 {[%mdl 512]}) 41. Rg1 $1 $15 ({Not} 41. Bxe5 $2 R2f7 42. Bxg7+ (42. Qd5 $2 Rd7 $19) 42... Kh7 43. Bxf8 Rxb7 $19) 41... Qh5 $40 {[%cal Oh5d1][%mdl 128] ( -> ...Qxd1!). Black has some attack.} 42. Qe4 $2 {[%mdl 8192] [#]} (42. Qe7 $15) 42... Nf3 $1 {[%mdl 512]} 43. h3 {[#]} (43. Bxe5 Nxe5) 43... Qxh3+ $1 {[%mdl 512]} 44. gxh3 Rh2# {Weighted Error Value: White=0.62/Black=0.46} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.1"]
[White "Keymer, Vincent"]
[Black "Artemiev, Vladislav"]
[Result "0-1"]
[ECO "D12"]
[WhiteElo "2664"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,102,26,31,19,19,22,22,22,14,2,19,-23,27,35,60,52,53,5,61,50,45,47,43,77,79,72,71,79,70,0,0,0,0,-22,-8,-26,-28,-29,0,-104,-107,-82,-69,-117,-106,-138,-133,-206,-206,-219,-220,-224,-223,-331,-326,-329,-316,-334,-333,-332,-322,-333,-325,-337,-337,-397,-354,-387,-391,-397,-393,-462,-454,-470,-406,-609,-588,-802,-767,-897,-847,-813,-806,-739,-695,-626,-631,-616,-597,-963,-897]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Nxg6 hxg6 8. Bd2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} Nbd7 9. Qb3 Qc7 10. cxd5 {The position is equal.} exd5 11. O-O-O a5 {[%cal Oa5a4] 11...Ng4 is the recent fashion.} 12. Qc2 {[#]} (12. h4 $142) 12... Bb4 $146 (12... Rxh2 $142 13. Rxh2 Qxh2) ({Predecessor:} 12... Rxh2 13. Rxh2 Qxh2 14. a3 Be7 15. Kb1 Nb6 16. f3 Nc4 17. Bc1 b5 18. e4 b4 {½-½ (85) Keymer,V (2664)-Dubov,D (2720) Berlin 2022}) 13. h4 $11 Nf8 {[%cal Og6g5]} 14. f3 Ne6 15. Bd3 (15. Kb1 $14) 15... c5 (15... O-O $1 $11) 16. dxc5 Qxc5 17. Kb1 O-O $1 18. a3 Rfc8 {[%cal Od5d4]} 19. Qb3 (19. axb4 axb4 20. Rc1 Qd6 $17) 19... Bxc3 20. Bxc3 Qxe3 21. Rhe1 (21. Bxf6 $14 gxf6 22. Bc4 Qxb3 23. Bxb3) 21... Qf4 $1 22. Be5 {A strong pair of Bishops.} Qxh4 23. Bb5 Qf2 24. Re2 Qb6 25. a4 {[#]} Nd7 $1 26. Bg3 (26. Qxd5 $11 {keeps the balance.} Nxe5 27. Qxe5) (26. Rxd5 Rd8) 26... Ndc5 $17 27. Qa3 d4 28. Rc2 (28. Be5 $15 {feels stronger.}) 28... Rd8 29. Bf2 Qd6 30. Bc4 (30. Bxd4 $17 {might work better.} b6 31. Rcd2) 30... b6 $19 31. Rcd2 Qe5 32. g4 Qf4 33. Bb5 (33. Bg1 {was called for.}) 33... d3 34. Bxd3 Rd5 {[#] Strongly threatening ...Rad8.} (34... Nxa4 $2 35. Be1 Nac5 36. Be2 $19) (34... Qxa4 35. Qxa4 Nxa4 36. Bc4 $15) (34... Qxf3 35. Bc2 Qc6 36. Bxc5 Rxd2 37. Rxd2 Qxc5 38. Qf3 $17) 35. Be1 {[%cal Od3e4]} Rad8 {And now ...Ng5 would win.} ({Not} 35... Rxd3 $2 36. Rxd3 Nxd3 37. Qxd3 $19) (35... Qxa4 36. Qxa4 Nxa4 37. Be2 Rxd2 38. Rxd2 $15) (35... Qxf3 $2 36. Bc2 Qxa3 37. bxa3 $19) 36. Qc3 Qxf3 ({Avoid the trap} 36... Rxd3 $2 37. Rxd3 Nxd3 38. Rxd3 $19) ({Weaker is} 36... Qxa4 37. Bc2 Qc6 38. Qe3 $19) 37. Bc2 Qxc3 38. bxc3 Rxd2 39. Rxd2 Rxd2 40. Bxd2 {[%mdl 4096] Endgame KBB-KNN} Kf8 41. Kc1 Ke7 42. Kd1 Kd6 43. Ke2 Kd5 {White must now prevent ...Kc4.} 44. Kf3 (44. Be1 $142) 44... g5 {Black is clearly winning.} 45. Bd1 Kc4 {aiming for ...Kd3.} 46. Ke3 Nf4 47. Kf3 Kd3 48. Be1 Nd7 49. Bb3 Ne5+ 50. Kg3 Ne2+ 51. Kh3 Ke3 {Weighted Error Value: White=0.32/Black=0.07 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.2"]
[White "Niemann, Hans Moke"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2642"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,95,-9,-10,-4,0,0,0,-14,6,0,29,20,53,28,20,45,74,79,75,83,87,82,117,114,197,193,187,185,187,199,209,195,217,204,241,228,244,193,217,218,217,195,249,198,231,228,244,240,279,241,317,308,300,295,346,315,432,305,422,406,383,379,727,725,688,698,768,770,764,763,1022,1038,1007,983,1184,744,871,852,1065,1044,29969,29970,29956,29965,29963,29965,29997,29998]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e4 Nxe4 5. Nxe4 dxe4 6. dxc5 {D00: 1 d4 d5: Unusual lines.} Qxd1+ 7. Rxd1 {Bxb8 is the strong threat.} Nc6 {[#]} 8. c3 $146 {The position is equal.} ({Predecessor:} 8. Be3 e5 9. Bc4 f5 10. g3 f4 11. gxf4 exf4 12. Bxf4 Bxc5 13. Ne2 Bg4 14. Rg1 {1-0 (24) Niemann,H (2642)-Hasangatin,R (2479) Chess.com INT 2022}) 8... g6 9. Bc4 Bg7 10. Ne2 O-O 11. Ng3 Bg4 12. Rd2 Na5 13. Bd5 {White is more active. Black is now going downhill.} e6 14. Bxe4 e5 15. Bg5 Rfe8 16. Bd5 Be6 {[#]} (16... e4 $16) 17. Ne4 $1 $18 Bxd5 18. Rxd5 Re6 19. Ke2 h6 20. Bc1 f5 21. Nd6 Rb8 22. Rhd1 Nc6 23. f3 Ne7 24. R5d3 Bf8 25. Be3 Nc6 (25... b6 $142 26. cxb6 axb6) 26. Rd5 Ne7 27. R5d2 Nc6 28. g4 Ne7 29. gxf5 gxf5 30. Rg1+ Kh7 31. Nc4 f4 {[#]} 32. Bf2 (32. Rd6 Rxd6 33. cxd6 Nc6 $16) 32... e4 33. Rd6 exf3+ 34. Kxf3 Rxd6 35. cxd6 ({Less strong is} 35. Nxd6 Ng6 36. Re1 b6 37. cxb6 axb6 $18) 35... Ng6 $2 (35... Nc6 36. a4 (36. Kxf4 b5 $14) 36... Bg7) 36. Bxa7 Ra8 37. Bb6 Rxa2 38. d7 Be7 39. Re1 {[%cal Oe1e7]} Bg5 40. Re8 Ra4 41. b3 Ra2 42. d8=Q {Intending Qd7+ and mate.} Bxd8 43. Rxd8 Rxh2 44. Bd4 {Black must now prevent Rd7+.} h5 45. Rd7+ {White mates.} Kh6 46. Bg7+ Kg5 47. Rd5+ Kh4 48. Bf6+ {Weighted Error Value: White=0.11 (very precise) /Black=0.43} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.3"]
[White "Praggnanandhaa R"]
[Black "Nepomniachtchi, Ian"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2612"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,144,16,13,12,15,7,10,-4,19,11,28,14,32,0,0,-9,0,0,10,10,20,17,23,0,0,0,23,-10,33,33,33,8,65,68,68,27,38,31,31,14,31,26,87,0,0,-358,-370,-512,-510,-512,-511,-441,-263,-183,-197,-376,-328,-269,-203,-290,-295,-286,-275,-375,-378,-581,-675,-667,-589,-588,-571,-545,-537,-705,-700,-627,-640,-606,-341,-333,-239,-243,-234,-289,-289,-289,-275,-289,-278,-285,-286,-255,-258,-254,-219,-430,-430,-12834,-12835,-12834,-357,-12825,-323,-320,-234,-12830,-12831,-12831,-12829,-12832,-12832,-12837,-12834,-12836,-12836,-12840,-12839,-12840,-12840,-12841,-12839,-12840,0,-12840,-12839,-12840,-12839,-12840,-12840,-12842,-12843,-12845,-12842,-12844,-12844,-12849,-12849]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4e3][%mdl 32]} O-O 6. Bxc6 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} dxc6 7. Nc4 Nd7 8. h4 {The position is equal.} b5 9. Ne3 (9. Ncxe5 Nxe5 10. Nxe5 Qd4 $17) 9... Re8 10. h5 Nf8 11. Bd2 {[#]} a5 $146 ({Predecessor:} 11... Rb8 12. a3 Bd4 13. c3 Bc5 14. Qc2 Qf6 15. O-O-O h6 16. d4 exd4 17. cxd4 Bxd4 18. Nxd4 Qxd4 {½-½ (64) Ivanchuk,V (2691)-Deac,B (2623) Forni di Sopra 2019}) 12. Nh4 a4 13. Nef5 Bxf5 14. Nxf5 Ne6 15. Qg4 {[%cal Of5g7]} Kh8 16. Rh3 {[%cal Bh1h3,Bh3g3,Bg3d3][%mdl 32]} Bf8 17. Be3 c5 18. Rd1 b4 (18... Be7 $11) 19. Rg3 $14 b3 20. cxb3 axb3 (20... a3 $1 $11) 21. a3 $1 ({But not} 21. axb3 Rb8 $15) 21... Ra4 22. Bd2 (22. Kf1 $14 {is superior.}) 22... c4 $11 23. Bc3 cxd3 $1 24. Rgxd3 ({Much worse is} 24. Rdxd3 Qa8 25. f3 f6 $17) 24... Qf6 25. f3 {Rd5 is the strong threat.} (25. Kf1 $5 {[%cal Rf5g3]}) 25... c5 (25... Nc5 $11 {keeps the balance.}) 26. Qg3 (26. Nd6 $16 Bxd6 27. Rxd6) 26... Nd4 27. Bxd4 $4 {[%mdl 8192] Black keeps a firm grip on the game.} (27. Kf2 $11) 27... exd4 $19 28. Kf1 g6 29. hxg6 fxg6 30. Qh4 Qxh4 (30... Qa6 $142 31. Kg1 gxf5) 31. Nxh4 Be7 {Hoping for ...Rb8.} 32. g3 $2 (32. Nxg6+ {was forced.} hxg6 33. Rxb3) 32... c4 33. Rxd4 Bf6 34. R4d2 (34. e5 $142 Rxe5 35. Rd6) 34... c3 35. bxc3 {[%cal Oe4e5]} Rxa3 ({Inferior is} 35... Bxc3 36. Rd3 Rc8 37. Kf2 $17) 36. Rd7 Rb8 {To avoid Rb7} 37. f4 (37. Ke2 {was worth a try.} b2 38. Rb1) 37... b2 38. Rb1 Ra1 39. Rdd1 Bxc3 40. Ke2 Rba8 {[#] And now ...Rxb1 would win.} 41. Nf3 Rxb1 42. Rxb1 {[%mdl 4096] Endgame KRB-KRN} Ra1 43. Nd2 Kg7 44. Kd3 Bxd2 45. Rxb2 {KRB-KR} Bc1 46. Rb7+ Kh6 47. Ke2 Ra3 48. Rc7 Bb2 49. g4 g5 50. Rc6+ Kg7 51. Rc7+ Kf8 52. fxg5 (52. Rc8+ Ke7 53. Rc7+ Kd6 54. Rb7) 52... Kg8 53. Kf2 (53. Rc5 $142 Rg3 54. Kf2) 53... Bd4+ 54. Kg2 {[#]} Re3 $2 (54... Rg3+ $3 {[%mdl 512]} 55. Kxg3 (55. Kh2 Rxg4) 55... Be5+ 56. Kg2 Bxc7) 55. Rd7 $2 (55. Re7) 55... Bc5 $2 (55... Rxe4 56. Rd8+ Kf7) 56. Rc7 Bf8 57. Kf2 $2 (57. Rc4) 57... Rxe4 58. Kf3 Re5 59. Kg3 Rxg5 60. Kh4 Re5 61. Kh3 Be7 62. Rc4 Kg7 63. Rc3 Kg6 64. Rb3 Kg5 65. Rf3 Kg6 $2 ({Black should play} 65... Re1 $19 66. Rf5+ Kg6) 66. Rd3 $2 {[%mdl 8192]} (66. Rb3 $11 Bd6 67. Rd3) 66... Re6 {Black is clearly winning.} 67. Kg3 Bd6+ 68. Kh4 Bf4 69. Rf3 Re4 70. Ra3 Rd4 71. Rf3 Bd6 72. Re3 h5 {Weighted Error Value: White=0.76/Black=0.36} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.4"]
[White "Le, Quang Liem"]
[Black "Esipenko, Andrey"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2709"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,123,18,16,15,6,12,15,11,12,12,5,24,0,4,5,0,0,31,29,24,25,29,31,43,52,56,56,59,41,43,43,34,39,53,53,63,53,53,53,66,66,66,66,74,74,83,74,88,74,82,76,82,72,72,72,131,22,22,22,22,22,22,23,30,21,21,11,12,30,20,17,21,9,61,61,61,61,71,14,14,10,15,0,20,26,123,122,122,0,0,0,142,142,142,142,29970,29971,29971,29972,29972,29973,29977,29978,29978,29979,29980,29981,29980,29981,29981,29979]} 1. d4 {Stohl,I} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. Qa4+ Nc6 8. e3 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 9. Be2 dxc4 10. O-O Bd7 {The position is equal.} 11. Bxc4 Bxc3 12. bxc3 Rfd8 {[%cal Oc6d4]} 13. Be2 Be8 {[%cal Oc6d4] [#] aiming for ...Nxd4!} 14. Qa3 Qe7 15. Qb2 Na5 16. Qb4 Qxb4 17. cxb4 Nc6 {[%cal Ba5c6,Bc6e7,Be7f5][%mdl 32]} 18. Rab1 {[#]} a6 $146 ({Predecessor:} 18... a5 19. bxa5 Nxa5 20. Rfc1 Rdc8 21. Ne1 Ra7 22. Nd3 Nc6 23. Bf3 Nd8 24. Nb4 Ra5 {1-0 (58) Topalov,V (2798)-Aronian,L (2780) Stavanger 2015 CBM 167 [Stohl,I]}) 19. Rfc1 Rdc8 20. Nd2 {[%cal Bf3d2,Bd2b3,Bb3c5][%mdl 32]} Ne7 21. Kf1 Bb5 22. Nb3 c6 23. g3 Nf5 24. Nc5 Nd6 25. a4 Bxe2+ 26. Kxe2 Rd8 27. g4 Kf8 28. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} Ke7 29. h5 Rdc8 30. Kf3 {White is more active.} Rc7 31. Nd3 Rcc8 32. e4 Rd8 33. Ke3 Rac8 34. f3 Rd7 (34... Ra8 $142) 35. b5 ({Better is} 35. e5 $16 Ne8 36. b5) 35... cxb5 {And now ...Nc4+ would win.} 36. Rxc8 Nxc8 37. axb5 axb5 38. Rxb5 $11 {[%mdl 4096] Endgame KRN-KRN} Nd6 39. Rb4 b5 40. Nc5 Ra7 41. Kf4 Ra3 42. e5 Nc4 43. Ne4 Rd3 (43... Ne3 $1 $11 44. Rxb5 Ng2+ 45. Kg3 Ne1) 44. Rxb5 $14 {Rb7+ is the strong threat.} Rxd4 45. Rb4 Kd7 $1 46. Rb7+ (46. Ra4 $16) 46... Ke8 $11 47. Rc7 Nb6 {To avoid Rc8+. Strongly threatening ...Nd5+.} 48. Rb7 Nd7 49. Ke3 Rxe4+ 50. fxe4 $16 Nxe5 $11 {KR-KN} 51. Kd4 ({White should play} 51. Kf4 $16 Nd3+ 52. Kf3) 51... Nxg4 52. Kc5 {White wants to mate with Kd6.} Kf8 (52... Nf6 $11 {keeps the balance.}) 53. Kd6 $16 {[%cal Rb7b8]} Kg8 54. Ke7 {Threatens to win with Rb8+.} f5 $2 {[%mdl 8192] [#] Loses the game.} (54... Ne5 $16 55. Rb8+ Kh7) 55. Kxe6 {White mates.} fxe4 56. Kf5 $1 {[%csl LRe4,LRg4]} Nf6 57. Kg6 Kf8 58. Rf7+ Ke8 59. Rxg7 Nd5 60. Kxh6 e3 61. Rg5 Nf6 62. Kg6 {Weighted Error Value: White=0.12 (very precise) /Black=0.27 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.5"]
[White "Hansen, Eric"]
[Black "Abdusattorov, Nodirbek"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2606"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,25,24,21,25,25,20,16,25,19,18,24,31,22,48,36,33,38,39,40,37,12,29,22,33,40,41,33,45,46,48,30,45,0,0,0,13,22,35,29,62,52,79,71,103,31,27,26,33,22,37,47,27,0,0,0,0,-546,-541,-564,-557,-548,-535,-564,-455,-401]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 4. O-O Bd6 5. a4 Nf6 6. d3 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} a6 7. Bc4 Be7 8. Nc3 {The position is equal.} O-O 9. Nd5 d6 10. c3 {[#]} Be6 $146 ({Predecessor:} 10... Rb8 11. Ne3 Be6 12. Bd5 Qd7 13. Qb3 Bd8 14. Rd1 Bc7 15. Qa2 Ne7 16. Bxe6 fxe6 {0-1 (49) Blanco,M (2073)-Rodriguez,J (2403) Caba 2018}) 11. h3 (11. Bd2 {seems wilder.} Rc8 12. Re1 Re8 13. Qe2 Bg4 14. Ne3) 11... Kh8 (11... Rc8 {with more complications.} 12. Re1 Re8 13. Bb3 Na5 14. Ba2 c4) 12. Ng5 Bxd5 13. exd5 Nb8 14. a5 Nbd7 15. b4 cxb4 16. cxb4 g6 17. Re1 Ne8 {[%cal Bf6e8,Be8c7,Bc7d5,Bd5f4][%mdl 32]} 18. Nf3 f5 19. Rb1 Nc7 20. Be3 g5 21. b5 (21. Bd2 $14) 21... axb5 $11 22. Bxb5 Nxd5 23. Bd2 {Prevents Nc3.} Nf4 24. Bc4 Rb8 25. Rb5 Bf6 26. Bxf4 gxf4 27. Bd5 ({White should try} 27. Be6 $16) 27... Qc7 $14 28. Qb1 {[%cal Rd5b7]} Nc5 29. Rc1 Qd7 {[%cal Oe5e4]} 30. d4 (30. Ne1 {feels hotter.} e4 31. a6 Nxa6 32. dxe4 fxe4 33. Bxe4 Nc5 34. Bf5) 30... exd4 31. Bxb7 Rxb7 {[%cal Bb8b7,Bb7b5,Bb5d5][%mdl 32]} (31... Nxb7 32. a6 Rf7 33. Qb3 $18) 32. Rcxc5 Rfb8 (32... dxc5 $2 33. Rxb7 Qc6 34. Rb6 $18) 33. Qxf5 {[%mdl 8192]} Qxf5 $19 {Black is clearly winning.} ({Less strong is} 33... dxc5 34. Qxd7 Rxd7 35. Rxb8+ Kg7 36. a6 $14) 34. Rxf5 {[#] Threatens to win with Rxb7.} Rxb5 35. Rxf6 Rd5 36. Re6 d3 37. Re1 {To avoid Rb1.  Weighted Error Value: White=0.32/Black=0.09 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.6"]
[White "Ding, Liren"]
[Black "Carlsen, Magnus"]
[Result "1/2-1/2"]
[ECO "D73"]
[WhiteElo "2799"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "21"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,21,0,3,6,31,16,20,0,23,0,28,0]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. cxd5 cxd5 7. Ne5 {D73: Fianchetto Grünfeld: 5 Nf3 .} Ne4 (7... O-O 8. Nc3 Bf5 9. O-O Ne4 10. Bf4 Nxc3 11. bxc3 Nc6 12. Nxc6 bxc6 13. Qa4 e6 14. Qxc6 Rc8 15. Qa4 Rxc3 16. Rfc1 Rxc1+ 17. Rxc1 Qb6 18. e3 {½-½ (39) Ding,L (2812)-Carlsen,M (2845) Shamkir 2019}) 8. Nd2 {[#]} Nf6 $146 ({Predecessor:} 8... Nd7 9. Nxe4 dxe4 10. O-O O-O 11. Nxd7 Bxd7 12. Bxe4 Bh3 13. Re1 Bxd4 14. Qb3 Be6 15. Qf3 Qb6 16. Be3 Bxe3 17. Qxe3 Qxe3 18. fxe3 Rac8 {½-½ (32) Carlsen,M (2862)-Vachier Lagrave,M (2784) chess24.com INT 2021}) 9. Nb1 Ne4 {now supersedes 9...0-0.} 10. Nd2 Nf6 11. Nb1 {An even fight not without its subleties.  Weighted Error Value: White=0.15 (very precise) /Black=0.06 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.7"]
[White "Duda, Jan-Krzysztof"]
[Black "Giri, Anish"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2760"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,98,0,8,16,10,4,12,0,4,0,0,0,-8,-12,0,4,11,18,11,21,20,12,12,22,10,27,29,25,14,6,13,9,14,15,17,20,17,20,20,20,22,22,25,0,0,0,8,0,4,8,8,5,5,5,331,331,304,272,271,264,347,276,275,252,264,256,261,265,370,327,300,279,262,279,507,505,497,480,393,327,762,745,720,404,29983,29980,29984]} 1. d4 {Atalik,S} Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. a3 Bxc3+ 7. bxc3 Bd7 {[%cal Oc6d4]} 8. cxd5 $1 {The main line 8.cxd5 scores better than 8.Qc2. D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} exd5 9. Bg5 h6 10. Bxf6 {The position is equal.} Qxf6 11. e3 O-O 12. Bd3 b6 13. O-O Qd6 14. Qc2 {[#]} Rac8 $146 ({Predecessor:} 14... Ne7 15. c4 c5 16. cxd5 Nxd5 17. dxc5 Qxc5 18. Qxc5 bxc5 19. Bc4 Nb6 20. Ne5 Nxc4 21. Nxd7 {½-½ (52) Atalik,S (2551)-Akobian,V (2486) San Francisco 2002 CBM 092 [Atalik,S]}) 15. c4 dxc4 16. Bxc4 Na5 17. Ba6 Rcd8 {White must now prevent ...b5.} 18. Qc3 Be6 19. Rac1 c6 20. Ne5 Bd5 21. Nd3 Rfe8 22. Rfe1 Nb3 23. Rb1 c5 ({But not} 23... Qxa3 24. Nb4 $16) 24. Rxb3 {[%cal Rd4c5]} cxd4 25. exd4 Bxb3 26. Qxb3 {Strongly threatening Ne5.} Rxe1+ 27. Nxe1 {aiming for Nf3.} Qxd4 28. Bf1 (28. Bc4 $5 {[%cal Rc4f7]}) 28... Qd1 29. Qe3 Qd2 30. Qe4 Qc1 31. Nc2 Rc8 32. Ne3 Qxa3 33. Nf5 Kh8 $2 {[%mdl 8192] [#] This move loses the game for Black.} (33... Rd8 $11 {and Black is okay.}) 34. Nxg7 $1 $18 {[%mdl 512]} Qd6 35. Nf5 Qf6 36. g3 a5 37. Ne3 {Hoping for Bd3.} Rd8 38. Bb5 Kg8 39. h4 Kf8 40. Kg2 Qd4 41. Qh7 Qf6 42. Ng4 Qg7 43. Qf5 ({Inferior is} 43. Qxh6 Qxh6 44. Nxh6 Rd4 $17) 43... Qg6 $2 (43... Qd4) 44. Qf4 Rd5 45. Bc4 Rf5 46. Qb8+ Ke7 $2 (46... Kg7 47. Ne5 Qf6) 47. Qc7+ Kf8 48. Ne5 Qh5 {[#]} (48... Rxe5 $18 49. Qxe5 Qc6+ 50. Bd5 Qd7) 49. g4 $1 Rxf2+ {Weighted Error Value: White=0.14 (very precise) /Black=0.41} (49... Qxh4 50. Qc8+) 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "11.8"]
[White "Aronian, Levon"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2772"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,0,0,-31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,161,155,182,143,120,42,103,112,111,95,97,43,117,100,63,92,102,79,92,22,87,119,71,0,0,-22,0,0,0,-183,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. Re1 Ng4 6. Re2 {C50: Hungarian Defence and Giuoco Pianissimo.} (6. Rf1 $5 {[%cal Rc2c3]}) 6... Nd4 (6... f5 $5 7. exf5 d5 $11) 7. Nxd4 Bxd4 {[#]} 8. h3 $146 ({Predecessor:} 8. c3 Qh4 9. h3 Bxf2+ 10. Rxf2 Qxf2+ 11. Kh1 Nf6 12. d4 exd4 13. cxd4 Nxe4 14. Nc3 Nxc3 15. bxc3 {0-1 (29) Machado,W (1944)-Siqueira,A (1922) Rio de Janeiro 2009}) 8... d5 9. Bxd5 (9. exd5 $2 Nxf2 10. Rxf2 Bxf2+ 11. Kxf2 Qh4+ 12. Kg1 Qxc4 $19) 9... Qh4 10. hxg4 Bxg4 11. Qf1 $1 (11. Bxb7 Rb8 12. Qf1 (12. Bc6+ $2 Kd8 $19) 12... Rxb7 $17) 11... O-O-O $1 12. c3 ({Avoid the trap} 12. Bxf7 $2 Rd6 13. d3 Rf8 $19) 12... Rd6 $1 {[%cal Od6h6] ( -> ...Rh6!)} 13. cxd4 Bxe2 14. Qxe2 Rh6 {[%csl Gh6][%cal Rh4h1]} 15. f3 {Black must now prevent Na3.} Qh1+ 16. Kf2 {Na3 is the strong threat.} Qxc1 17. Qe1 Qxb2 (17... Qxe1+ $11 18. Kxe1 Rh1+ 19. Kf2 f6) 18. Nc3 $36 {[%mdl 2048] White is on the roll.} c6 {[#]} 19. Rb1 $1 Qa3 20. dxe5 Qc5+ (20... cxd5 $14 21. exd5 Qc5+ 22. Qe3 Qxe3+ 23. Kxe3 Ra6) 21. Qe3 $16 Qxe3+ 22. Kxe3 ({Much worse is} 22. dxe3 $6 cxd5 23. exd5 Rb6 $11) 22... cxd5 23. exd5 Rb6 (23... b6 $1 $14) 24. Rxb6 axb6 {[%mdl 4096] Endgame KR-KN} 25. f4 Kd7 26. Na4 {[%mdl 1024] White has strong compensation.} Kc7 27. d6+ ({White should play} 27. f5 $1 $16) 27... Kc6 $11 28. d4 b5 {[#]} 29. Nc5 (29. Nc3 $1 $16) 29... Ra8 30. Nd3 g6 31. Nb4+ $1 Kd7 32. Ke4 $2 {[#]} (32. Nd5 $1 $11 {and White stays safe.} Ra3+ 33. Ke2) 32... Ra4 $2 (32... Ra3 $1 $19 33. f5 Ra4) 33. Nd5 {Hoping for Nb6+. The position is equal.} Rxa2 34. Nf6+ Kd8 35. d5 Rxg2 {Strongly threatening ...Rf2.} 36. Ke3 {Inhibits Rf2.} Rg1 37. Kd2 {White threatens e6 and mate.} Rg2+ $1 38. Kd3 {White wants to mate with e6.} Rg1 {Threatens to win with ...Rf1.} 39. Kd2 Rg2+ $1 40. Kd3 {Intending e6 and mate.} Rg1 {aiming for ...Rf1.} 41. Kd2 {Black escapes into a draw.  Weighted Error Value: White=0.22 (precise) /Black=0.17 (very precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.1"]
[White "Artemiev, Vladislav"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1/2-1/2"]
[ECO "D78"]
[WhiteElo "2700"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,104,26,28,21,27,25,27,17,14,12,13,13,14,11,14,16,2,7,33,33,84,81,72,68,85,84,93,70,81,42,103,100,96,52,44,44,65,65,73,77,78,78,78,78,78,78,79,80,84,77,90,81,81,83,98,90,91,83,114,109,116,122,124,91,91,91,91,78,78,78,78,78,78,78,78,78,85,31,31,31,31,18,32,26,26,26,26,26,26,26,26]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O Nf6 5. c4 c6 6. b3 Ne4 7. d4 O-O 8. Bb2 a5 {[%cal Oa5a4] 8...a5 is a critical line.} 9. e3 {D78: Fianchetto Grünfeld: 6 0-0 c6.} a4 10. Nfd2 Nxd2 11. Qxd2 (11. Nxd2 {with more complications.} Bf5 12. Qe2 Qd7 13. Rfc1 h5 14. a3) 11... axb3 12. axb3 Rxa1 13. Bxa1 {[#]} Be6 $146 ({Predecessor:} 13... dxc4 14. bxc4 c5 15. Na3 cxd4 16. exd4 e5 17. d5 Nc6 18. Nb5 Na5 19. Qb4 b6 {1-0 (46) McNab,C (2473)-Bates,R (2392) Hinckley Island 2009}) 14. Qb4 Qd7 15. Nc3 Na6 16. Qa4 {Threatening cxd5.} Rd8 17. cxd5 cxd5 (17... Bxd5 $14 18. Nxd5 cxd5) 18. Qxd7 Rxd7 19. Bb2 f6 20. Ra1 Bf7 21. Bf1 Bf8 22. Ba3 Nb8 (22... Rc7 $14 23. Na4 Be8) 23. Bc5 $16 e5 24. Bh3 (24. b4 $16) 24... Rd8 $1 $14 25. Bb6 Re8 26. Ra8 exd4 27. Bxd4 Kg7 28. Bg2 {White is more active.} Nc6 29. Rxe8 Bxe8 30. Bb6 Nb4 31. Nxd5 Bf7 32. Nc3 Bxb3 33. Bxb7 Be6 34. e4 Nd3 35. Bd5 Bd7 36. Bd4 Bd6 37. f4 Bb8 38. Bc4 Nb4 39. Nd5 Nxd5 40. Bxd5 $16 {[%mdl 4096] Endgame KBB-KBB} h6 41. h4 Bc7 42. Kf2 Bd8 43. Kf3 h5 44. Ke3 Kf8 45. Bc5+ Kg7 46. e5 (46. Ke2 $16) 46... fxe5 $14 47. fxe5 g5 48. Bd4 {[#] Black must now prevent e6+.} Kf8 49. e6 Bxe6 {White has an edge.} 50. Bxe6 {Hoping for hxg5.} gxh4 51. gxh4 Bxh4 52. Kf4 Ke7 {Weighted Error Value: White=0.07 (flawless) /Black=0.06 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.2"]
[White "Giri, Anish"]
[Black "Aronian, Levon"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2772"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,59,21,21,14,4,16,20,22,5,0,10,0,9,0,0,0,18,29,11,12,16,16,11,21,13,6,7,20,37,39,60,59,69,67,68,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. O-O e6 6. c4 dxc4 7. Qa4 (7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 O-O 11. Nb3 Be7 12. c4 Bd7 13. a4 Rad8 14. Bb2 Bc8 15. Nfd4 Nxd4 16. Bxd4 b6 17. a5 Nd7 18. axb6 axb6 19. Bc6 Bf6 20. Bb5 g5 {½-½ (34) Giri,A (2780)-Aronian,L (2781) Bucharest 2021}) 7... Bd7 8. Qxc4 b5 9. Qc3 {E04: Open Catalan: 5 Nf3.} b4 10. Qd3 Rc8 11. dxc5 Bxc5 12. Nbd2 $1 {[%mdl 4] is recently more successful than 12.Be3.} O-O {[#]} 13. b3 $146 ({Predecessor:} 13. Nb3 Bb6 14. Be3 e5 15. Ng5 h6 16. Ne4 Bf5 17. Bxb6 axb6 18. Nxf6+ Qxf6 19. Qb5 {0-1 (46) Shankland,S (2708)-Aronian,L (2782) Kolkata 2021}) 13... e5 14. Bb2 Qe7 15. Rac1 e4 {[#]} 16. Bxf6 $1 exd3 17. Bxe7 Bxe7 18. exd3 Rfd8 19. Nc4 Kf8 20. Nfe5 Nxe5 21. Nxe5 Rxc1 22. Rxc1 Bf6 23. Rc5 Bxe5 24. Rxe5 $14 {[%mdl 4096] Endgame KRB-KRB} Rc8 {[#] ( -> ...Rc1+)} 25. f4 (25. Be4 $14) 25... Rc2 $11 {The position is equal.} 26. Ra5 Rc1+ 27. Kf2 $1 {Black must now prevent Ke3.} Rc2+ 28. Kg1 Rc1+ 29. Kf2 $1 Rc2+ 30. Kg1 {Weighted Error Value: White=0.07 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.3"]
[White "Carlsen, Magnus"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2865"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,39,31,23,31,37,53,40,25,67,57,67,52,87,80,75,85,183,178,255,253,377,376,376,360,366,348,379,381,375,370,970,898]} 1. e4 c5 2. Nc3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. Be3 Nc6 6. Qd2 {B23: Closed Sicilian: Lines without g3.} d6 7. f3 Bg7 8. Nge2 {[%cal Bg1e2,Be2f4,Bf4d3][%mdl 32] [#] White is slightly better.} Be6 $146 (8... a6 $11 {was preferrable.}) ({Predecessor:} 8... Bd7 9. Nf4 Rc8 10. h4 h5 11. Nfd5 e6 12. Nxf6+ Bxf6 13. O-O-O Nb4 14. Bd4 O-O 15. Bxf6 Qxf6 {1-0 (66) Gabrielian,A (2464)-Horobetz,G Chess.com INT 2021}) 9. Nf4 $14 O-O 10. h4 Ne5 11. h5 $1 Bc4 12. hxg6 hxg6 {[#]} (12... fxg6 $16 {was worth a try.} 13. b3 Bf7) 13. Nd3 $1 $18 Be6 (13... Bxd3 $142 14. cxd3 (14. Bxd3 Rc8 $16) 14... Re8) 14. Bh6 {Black must now prevent Bxg7.} Nh5 (14... Nc4 {was called for.} 15. Qc1 Bh8) 15. Bxg7 Kxg7 {[#]} 16. Rxh5 {[%mdl 512]} gxh5 17. Nxe5 {Qg5+ is the strong threat.} dxe5 18. Qg5+ Kh7 {aiming for ...f6.} 19. Qxh5+ Kg8 $2 (19... Kg7 20. Qxe5+ Kh6 21. Qh2+ (21. Rd1 Qb8 $11) 21... Kg7 22. Qe5+ Kh6 23. Qh2+ (23. Rd1 Qb8 $11) 23... Kg6 24. Qg3+ Kh7 25. Qh4+ Kg7 26. Qg5+ Kh8 27. Qh5+ (27. Rd1 Qb6 $16) 27... Kg7 28. Qg5+ Kh8 29. Qh5+ (29. Rd1 Qb6 $16) 29... Kg7 30. Qg5+) 20. Bd3 {Weighted Error Value: White=0.01 (flawless) /Black=0.39} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.4"]
[White "Abdusattorov, Nodirbek"]
[Black "Ding, Liren"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2651"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,112,5,9,10,0,11,11,0,0,0,0,0,30,22,37,46,37,14,7,16,0,0,0,0,0,0,0,0,6,0,0,0,25,0,0,0,0,0,0,0,0,0,0,-45,-47,-42,-25,-31,-31,-31,-39,-57,-69,-141,-146,-142,0,-82,0,-141,-140,-141,-107,-131,-127,-148,-147,-156,-148,-137,-142,-148,-145,-145,-144,-190,-76,-234,-215,-217,-237,-206,-207,-274,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e4 Bb4 5. d3 d6 6. a3 {A28: English Opening: Four Knights Variation.} Bxc3+ 7. bxc3 O-O 8. g3 Rb8 9. a4 Ne8 10. Nh4 Ne7 11. Bg2 f5 {[#]} 12. exf5 $146 ({Predecessor:} 12. Bg5 fxe4 13. Bxe4 Nf6 14. Bxf6 Rxf6 15. O-O Be6 16. Re1 Qf8 17. Rb1 b6 18. d4 Bxc4 19. dxe5 dxe5 {½-½ (54) Landes,E (2415)-Barclay,A (2422) ICCF email 2021}) 12... Nxf5 13. Nxf5 (13. Nf3 $5 {[%cal Re1g1]}) 13... Bxf5 14. O-O Qd7 15. Be3 b6 16. d4 exd4 17. cxd4 Bh3 18. d5 Nf6 {[%cal Be8f6,Bf6e4,Be4g5,Bg5h3][%mdl 32]} 19. Bd4 Rbe8 20. a5 Ne4 21. Ra2 Ng5 22. f4 Bg4 23. Qa1 Nh3+ 24. Kh1 Rf7 {[%cal Bf8f7,Bf7e7,Be7e4][%mdl 32]} 25. axb6 cxb6 26. Qc3 (26. Qb1 $11) 26... Rfe7 $15 27. Bf3 h5 28. Qd3 Bxf3+ 29. Qxf3 Qg4 (29... Qf5 {is interesting.} 30. Kg2 Re4 31. Rd2 R8e7 32. Kh1 Qg4) 30. Qxg4 hxg4 31. Rfa1 (31. Bc3 $15) 31... Re4 $17 32. Rd2 Rc8 (32... Kh7 $17) 33. Rc1 (33. Rxa7 $11 {remains equal.} Rxc4 34. Rxg7+ Kf8 35. Rxg4 $1 Rexd4 36. Rxd4 Rxd4 37. Kg2) 33... Rce8 ({Black should try} 33... Kh7) 34. Ra1 R8e7 35. Kg2 Kh7 36. Kf1 Kg6 $1 37. Rc1 Kf5 38. Bb2 g5 39. Ba3 {[#]} Rd7 ({But not} 39... gxf4 $6 40. Bxd6 Rh7 41. gxf4 $11) 40. fxg5 Nxg5 41. Rf2+ Nf3 42. Re2 {Inhibits Re3.} (42. h4 $17) 42... Rh7 (42... a5 $19 {is more deadly.} 43. Kf2 Ne5) 43. Rcc2 $2 (43. Bxd6 $17 Nxh2+ 44. Kf2) 43... Rd4 $19 {Threatens to win with ...Rd1+.} 44. Bxd6 Rd1+ 45. Kf2 {[#]} Nd4 $1 ({Worse is} 45... Rxh2+ 46. Ke3 Rh8 47. Bc7 $17) 46. Re5+ Kf6 $2 (46... Kg6 $19 47. Kg2 Rd7) 47. Kg2 $11 {The position is equal.} Nxc2 (47... Nf3 $5 48. Re6+ Kf5 $11) 48. Re6+ Kf5 49. Re5+ Kg6 50. Re6+ Kf7 51. Re7+ Kg8 52. Re8+ Kg7 53. Re7+ Kg6 {aiming for ...Rxe7.} 54. Re6+ Kf5 55. Re5+ Kf6 {( -> ...Ne1+)} 56. Re6+ Kf5 {Black had all chances to win.  Weighted Error Value: White=0.13 (very precise) /Black=0.14 (very precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.5"]
[White "Esipenko, Andrey"]
[Black "Hansen, Eric"]
[Result "1/2-1/2"]
[ECO "C97"]
[WhiteElo "2714"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,138,20,35,37,75,76,73,70,80,69,66,40,49,41,49,50,36,11,18,16,12,10,11,-90,34,54,62,46,58,-56,-74,-67,-54,-76,-70,-65,14,-55,0,-77,0,0,86,-58,-36,-95,-97,-79,-96,-97,-105,-93,-59,-70,-56,-73,-69,-141,-133,-123,-136,-119,-130,-260,-257,-344,-136,-452,-361,-351,-312,-285,-284,-389,-375,-428,-287,-277,-131,-129,-131,-130,-123,-112,-116,-127,-120,-116,-28,-28,-31,-39,0,-8,0,0,8,0,0,0,0,0,0,0,0,-54,-59,-137,-93,-197,-143,-128,0,-130,0,-130,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Bd7 13. b3 {[%cal Bb2b3,Bb3b4][%mdl 32] C97: Closed Ruy Lopez: Chigorin Defence: 11 d4 Qc7, sidelines.} c4 14. b4 Nb7 15. a4 {White is better.} g6 {[#]} 16. Bh6 $146 ({Predecessor:} 16. Be3 Rfb8 17. a5 Nh5 18. Nbd2 Bf8 19. Nf1 Re8 20. Qd2 Bg7 21. Ng3 Nxg3 22. fxg3 {½-½ (55) Pirs,M (2506)-Tauscher,K (2408) Remote email 2013}) 16... Rfe8 17. a5 Nh5 18. Nbd2 f6 19. Nf1 Nd8 20. Qd2 Nf7 21. Be3 f5 {Prevents g4.} 22. exf5 gxf5 23. N3h2 (23. Ng3 $11 {remains equal.} Nxg3 24. fxg3) 23... Kh8 ({Better is} 23... f4 $17 24. Bb6 Qc8) 24. Ng3 $1 $14 Ng7 25. f4 {White is more active.} Bh4 26. Nhf1 (26. Bf2 $14) 26... Qd8 $1 $15 27. Re2 Qf6 28. Rae1 Qg6 29. Bf2 Qh6 (29... h5 $15) 30. Be3 ({White should try} 30. fxe5 $11 Qxd2 31. Rxd2 (31. Nxd2 Nxe5 32. Rf1 Rf8 $11) 31... Nxe5 32. Ne2 Bxf2+ 33. Kxf2) 30... Qg6 31. Bf2 Qh6 (31... h5 $17) 32. fxe5 $11 Bg5 (32... Qxd2 $11 33. Rxd2 (33. Nxd2 Nxe5 34. Kh2 h5 $11) 33... Nxe5) 33. Qd4 (33. Be3 $16 {aiming for Bxg5.} Bxe3+ 34. Nxe3 (34. Qxe3 f4 $11) 34... Rxe5 35. Nef1) 33... dxe5 34. Rxe5 (34. Qb6 $15) 34... Rxe5 $17 35. Rxe5 Bf6 {[%mdl 64] Pin} 36. Be3 Qg6 (36... Bxe5 $6 37. Qxe5 $1 Nxe5 38. Bxh6 $11) 37. Bf4 Bxe5 38. Bxe5 Nxe5 39. Qxe5 Re8 {Prevents Qe7.} 40. Qc7 (40. Qd4 $15) 40... Bc8 {White must now prevent ...Qf6.} 41. Bd1 Qf6 42. Ne2 Qe5 $36 {[%mdl 2048] Black is really pushing.} 43. d6 (43. Qxe5 $17 {was necessary.} Rxe5 44. Nf4) 43... Ne6 $1 $19 44. Qf7 Rg8 (44... Rd8 $2 45. Qe7 $17) (44... Ng5 $19 45. Qa7 Qxd6) 45. Neg3 $2 {[%mdl 8192]} (45. Qe7 $17 {is a better chance.}) 45... Ng5 (45... Rxg3 46. Nxg3 Qxg3 47. Qe8+ Kg7 48. Qxc8 Qe1+ 49. Kh2 $11) 46. Qe7 Qxe7 47. dxe7 Re8 48. Bc2 f4 49. Nh5 Rxe7 50. Nxf4 Re1 (50... Rf7 $19 {and Black stays clearly on top.} 51. Ne2 Bxh3 $1) 51. Kf2 $17 Rc1 52. Ne3 Bb7 53. Ne2 Ra1 54. Nf5 Ra2 55. Nfd4 Be4 ({Black should play} 55... Kg7 $17 56. h4 Ne4+ 57. Ke3 Nf6) 56. Bxe4 $11 Nxe4+ {[%mdl 4096] Endgame KRN-KNN} 57. Ke3 $1 Nf6 (57... Nd2 $5 {[%cal Rd2b1]}) 58. Kf4 Kg7 59. Ke5 {Prevents Nd5.} Kf7 60. g4 Rd2 {Threatens to win with ...Rd3.} 61. Nf4 {Inhibits Rd3.} Nd7+ 62. Kd6 Nf6 {And now ...Ne4+ would win.} 63. Ke5 {Prevents Ne4.} Nd7+ 64. Kf5 (64. Kd6 $11 Nf6 65. Ke5) 64... Rd1 $15 65. g5 (65. Ke4 $1 $15) 65... Re1 (65... Nf8 $142 {...Ng6 is the strong threat.} 66. Ke4 Ng6) 66. Nfe2 (66. h4 $17) 66... Rh1 (66... Nb8 $19 {[%cal Ob8c6] Hoping for ...Nc6!} 67. Ng3 Re3) 67. Nf4 $17 Re1 ({Weaker is} 67... Rf1 68. h4 $15) 68. Nfe2 $1 Rh1 69. Nf4 $1 {[#]} Re1 {Weighted Error Value: White=0.31/Black=0.32} ({Not} 69... Rf1 70. h4 $15) (69... Nf8 $1 $17 70. Nd5 Rxh3) 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.6"]
[White "Nepomniachtchi, Ian"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2773"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "158"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,158,8,18,16,26,15,18,0,0,-24,-27,-42,-35,-45,-45,-58,-32,-41,-9,0,6,-23,0,0,0,-17,-33,-272,-12,-36,0,0,51,-11,-16,-24,0,-56,0,-18,23,-17,0,0,0,0,177,179,270,277,261,267,279,272,369,286,304,289,281,216,221,221,219,220,220,217,213,215,277,280,280,280,280,280,262,235,280,229,200,200,258,232,250,240,200,83,200,200,200,200,200,125,125,125,125,125,125,125,125,79,125,125,125,84,125,125,125,98,125,72,72,0,132,82,87,72,72,72,72,72,72,72,72,12,72,72,29978,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. c3 a6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Ba7 8. Na3 O-O 9. h3 Ne7 10. Nh4 Kh8 11. Bg5 Ng6 12. Nxg6+ fxg6 13. Nc2 h6 $1 14. Be3 Nh5 15. d4 {[#]} Qh4 $146 ({Predecessor:} 15... Nf4 16. Kh2 exd4 17. Nxd4 d5 18. exd5 Nxd5 19. Bxd5 Qxd5 20. Nf3 Qh5 21. Bxa7 Bxh3 {½-½ (51) Le,Q (2737)-Prithu,G (2373) Caleta 2018}) 16. Re1 Bd7 17. Qd2 Nf4 18. Bf1 (18. Bxf4 $5 Rxf4 19. g3 Qxh3 20. gxf4 Qg4+ 21. Kf1 Qh3+ 22. Kg1 Qg4+ 23. Kh1 (23. Kf1 Qh3+ 24. Kg1 $11) 23... Qh3+ 24. Kg1 $11) 18... Rae8 {[%cal Rf4h3] And now ...Nxh3+! would win.} 19. Kh2 {[#]} (19. Bxf4 $15 Qxf4 20. Qxf4 Rxf4 21. f3) 19... Ne6 $2 (19... Nxh3 $1 $19 {[%mdl 512]} 20. g3 (20. gxh3 $2 Bxh3 21. Bg2 Bxg2+ 22. Kxg2 Qxe4+ 23. Kf1 exd4 $19) 20... Qh5) 20. g3 Qf6 (20... Qxe4 $5 {[%cal Rd7c6]} 21. Bg2 Qf5 $15) 21. Bg2 Qf7 ({Black should try} 21... Ng5 $11 22. f4 exf4 23. Bxf4 Ne6) 22. b4 {[#]} (22. f3 $1 $14) 22... Nf4 $1 $11 23. Bf1 Nh5 24. b5 (24. Bg2 $11) 24... a5 (24... g5 $15) 25. Kg1 Bb6 (25... g5 $142) 26. Rad1 (26. dxe5 $5 {[%cal Re3b6]} Bxe3 27. Nxe3 $11) 26... Be6 {[%cal Oh5f4]} 27. dxe5 Bxe3 28. Nxe3 Bb3 $2 (28... dxe5 $11 {and Black is okay.} 29. c4 Nf6) 29. Rb1 $1 $18 Rxe5 (29... Be6 $142) 30. c4 $1 Bxa4 31. Ng4 Rg5 32. Re3 Rc5 33. Ra3 Rxc4 34. Bxc4 (34. Qxa5 Rxe4 $1 35. Bg2 (35. Rxa4 Rxg4 36. Rxg4 Qxf2+ 37. Kh1 Nxg3+ 38. Rxg3 Qxg3 $15) 35... Bc2 36. Bxe4 Bxe4 $11) 34... Qxc4 35. Qa2 Bxb5 36. Qxc4 (36. Rxa5 $6 Qxa2 37. Rxa2 Bc6 $16) 36... Bxc4 37. Rxb7 Re8 38. e5 (38. Rxc7 Rxe4 39. Kh2 (39. Rxa5 Re1+ 40. Kh2 Bd3 $18) 39... Be6 40. Rxa5 d5) 38... dxe5 39. Rxa5 Nf6 40. Nxf6 (40. Rxc7 Nxg4 41. Rxc4 Nf6 $18) (40. Rxe5 $6 Be6 41. Nxf6 gxf6 $18) (40. Nxe5 Bd5 41. Rxd5 (41. Nxg6+ Kh7 $11) 41... Nxd5 42. Nxg6+ Kh7 $11) 40... gxf6 41. Rxc7 {[%mdl 4096] Endgame KRR-KRB} Bg8 42. Ra6 Rf8 43. Re7 g5 44. f3 Bh7 45. Kf2 Bf5 46. g4 Bg6 47. Raa7 Rb8 48. Rg7 (48. Rad7 $18 {and White stays clearly on top.}) 48... Rg8 (48... Ra8 $16 49. Rad7 (49. Rxa8+ Kxg7 50. Ra7+ Kg8 $16) 49... Rd8 50. Rh7+ (50. Rxd8+ Kxg7 51. Rd6 h5 $16) 50... Bxh7 51. Rxd8+ Kg7) 49. Rgc7 Rd8 50. Ra6 Rf8 51. Rb6 Kg8 52. Ke3 {White is more active.} Rf7 53. Rcc6 Kg7 54. Rd6 h5 55. Kf2 (55. Rbc6 $142) 55... h4 (55... hxg4 $142 56. fxg4 (56. hxg4 e4 $16) 56... Be4) 56. Ke3 $16 Bh7 57. Kd2 (57. Re6 $142) 57... Bg8 (57... e4 $142 58. Ke3 exf3 59. Kxf3 Rf8) 58. Kc3 Rf8 59. Kb4 Rf7 60. Rbc6 (60. Re6 $142 $1) 60... Bh7 61. Re6 (61. Kc4 $16) 61... Bg8 (61... Bd3 $1 $11 {remains equal.}) 62. Kc5 (62. Kc3 $142) 62... Bh7 63. Kd6 {Re7 is the strong threat.} Bd3 64. Rc8 $1 Ba6 (64... Bf1 $2 65. Ree8 $18) 65. Rb8 Bf1 {[#]} 66. Ree8 $1 Kg6 (66... Bxh3 $2 67. Rg8+ Kh7 68. Ke6 $18) 67. Re7 (67. Rg8+ $16 Rg7 68. Rxg7+ Kxg7 69. Ke6 (69. Rb7+ Kg6 $11)) 67... Rxe7 (67... Kg7 $1 $11 {keeps the balance.}) 68. Kxe7 Bxh3 $2 $11 {[%mdl 8192] [#] KR-KB} (68... Kg7 $16) 69. Rb6 $2 (69. Rg8+ $1 {mates} Kh7 70. Kf7 (70. Rf8 Bg2 $11) 70... e4 71. Rg7+ Kh6 72. Kxf6 exf3 73. Rxg5 Kh7 74. Kf7) 69... Bg2 {The position is equal.} 70. Rxf6+ Kg7 71. Rf7+ Kg6 72. Rf8 {Threatening mate with Rg8+.} Kg7 {Inhibits Rg8+.} 73. Rf7+ Kg6 74. Kf8 h3 75. Ke7 h2 76. Rf6+ Kg7 77. Rf7+ Kg6 78. Rf6+ Kg7 79. Rf7+ Kg6 {Weighted Error Value: White=0.24 (precise) /Black=0.33} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.7"]
[White "Kosteniuk, Alexandra"]
[Black "Praggnanandhaa R"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2516"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,126,8,22,33,18,18,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,0,-9,8,15,0,0,7,1,0,0,-20,-11,-15,-9,-22,-4,-29,0,-97,-98,-110,-110,-120,-121,-140,-125,-158,-158,-158,-158,-151,-106,-167,-173,-234,-227,-229,-229,-280,-145,-147,-145,-145,-145,-175,-145,-185,0,-157,-158,-210,-210,-212,-212,-218,-187,-173,-134,-172,-162,-220,-216,-243,-221,-217,-144,-160,-148,-161,-111,-148,-152,-169,-126,-186,-183,-546,-524,-910,-895,-844,-804,-29973,-29974,-29974,-29975,-29980,-29981,-4910,-4831]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. h3 e5 8. d4 cxd4 9. cxd4 Nxd4 $1 {[%mdl 4] outshines the older 9...exd4. B31: Sicilian: 2...Nc6 3 Bb5 g6.} 10. Nxd4 Qb6 11. Bc4 {[#] Hoping for Nb5.} Qxd4 $146 {The position is equal.} ({Predecessor:} 11... exd4 12. e5 Ne8 13. Bg5 d6 14. Be7 dxe5 15. Nd2 Nd6 16. Bxf8 Kxf8 17. Rc1 Bf5 {0-1 (44) Tari,A (2634)-Paravyan,D (2629) Moscow 2019}) 12. Qxd4 exd4 13. e5 Ne8 {[%cal Bf6e8,Be8c7,Bc7e6][%mdl 32]} 14. Bf4 Nc7 15. Na3 {[%cal Bb1a3,Ba3b5,Bb5d4][%mdl 32]} Ne6 16. Bg3 b6 17. Bd5 Rb8 18. Rad1 Bb7 19. Bxb7 Rxb7 20. Nb5 h6 21. Nxd4 d5 22. Nb5 Rd7 23. f3 Rc8 {[%cal Bf8c8,Bc8c5,Bc5d5][%mdl 32]} 24. Re2 {Inhibits Rc2.} Rc5 25. Nd6 d4 26. f4 Rd5 27. Rc2 Kh7 28. b4 (28. Rc6 $11 {remains equal.}) 28... g5 $17 29. f5 Nf4 30. Bxf4 gxf4 31. f6 Bf8 32. Re2 {[%cal Od6f7]} Bxd6 33. exd6 R5xd6 {[%mdl 4096] Endgame KRR-KRR} 34. Re4 f3 ({Black should try} 34... d3 {Threatens to win with ...Rd4.} 35. Rxf4 d2) 35. gxf3 {[#]} (35. g3 $17 {might work better.}) 35... d3 $1 $19 ({Inferior is} 35... Rxf6 36. Rd3 $17) 36. Rd2 (36. Kf2 $142) 36... Kg6 ({Not} 36... Rxf6 37. Kf2 $17) 37. Kf2 Kxf6 (37... Rxf6 38. Ke3 $17) 38. Ke3 {[#]} Rd5 (38... Re6 $1 $19 39. Rxe6+ Kxe6 40. Rxd3 Rxd3+ 41. Kxd3 Ke5) 39. Rc4 $17 Re5+ 40. Kf2 Kf5 41. Rh4 Kg6 {Prevents Rh5.} 42. Rg4+ Kf6 $2 (42... Kh5 $19 {Strongly threatening ...f5.} 43. Rc4 f5) 43. Rf4+ $2 (43. Rc4 $1 $11) 43... Rf5 {Black is more active.} 44. Rh4 (44. Rc4 $17 {was worth a try.}) 44... h5 $19 45. Rc4 Rfd5 46. Ke3 Re5+ 47. Kf2 Kg6 48. Rc3 Red5 49. Ke3 (49. Kg3 $142) 49... Kf5 ({And not} 49... Re7+ 50. Kf2 $17) 50. Rc4 Re5+ 51. Kf2 f6 52. Rh4 Kg5 53. Rc4 {f4+ is the strong threat.} Re6 (53... Red5 $19 {aiming for ...Rd4.} 54. Ke3 Re5+ 55. Kf2 b5 56. h4+ Kg6) 54. h4+ Kf5 55. a3 Re5 ({Black should play} 55... Rd5 $19 56. Rc3 Red6) 56. Rc8 (56. a4 $17) 56... Rd4 57. Rh8 $2 (57. Rc6) 57... Kf4 {White must now prevent ...Re3.} 58. Rh6 Rd6 59. Rh7 Re3 60. Rxh5 Rxf3+ 61. Kg2 Ke3 62. Rd1 d2 63. Rh7 Ke2 {[%csl LRa3,LRd1] Weighted Error Value: White=0.39/Black=0.14 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "12.8"]
[White "Keymer, Vincent"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2664"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,137,22,7,2,4,18,19,54,24,31,30,35,0,33,28,124,129,151,136,228,215,218,223,275,265,266,194,291,282,269,281,279,266,252,100,203,173,241,218,231,225,229,144,131,128,144,159,146,152,223,153,164,158,246,264,243,272,272,256,277,205,281,289,290,283,284,283,368,350,378,348,366,337,539,521,642,545,519,254,254,254,252,252,256,232,280,289,278,273,319,277,342,327,340,339,479,493,423,342,338,248,230,69,332,320,335,335,399,385,711,707,685,471,1598,1640,1619,1526,1139,1075,1433,1018,29988,29984,29985,29986,29986,29987,29985,29985]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. d4 cxd4 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} 7. Qxd4 Bc5 8. Qd3 {[#]} Na6 $146 {The position is equal.} ({Predecessor:} 8... d5 9. cxd5 Nxd5 10. Ng5 Be7 11. Nxd5 Bxd5 12. Bxd5 Qxd5 13. Qxd5 exd5 14. O-O O-O {1-0 (78) Zhukova,N (2377)-Goltseva,E (2153) St Petersburg 2018}) 9. O-O O-O 10. Bf4 d5 {Prevents e4.} 11. Rad1 (11. cxd5 Nb4 12. Qb1 Nbxd5 $11) 11... h6 (11... Nb4 12. Qb1 $16) 12. Be5 Nb4 (12... Nc7 $11) 13. Qb1 $16 Nd7 14. Bf4 {White is more active.} Nf6 (14... dxc4 $2 15. Ne5 Nd5 16. Nxd5 exd5 17. Bxd5 Nxe5 18. Bxb7) (14... e5 $16) 15. a3 $18 Na6 16. e4 {[%cal Be2e4,Be4e5][%mdl 32]} d4 17. e5 Nd7 18. Nb5 (18. Nxd4 $6 Bxg2 19. Kxg2 Bxd4 20. Rxd4 Qc7 $16) 18... g5 (18... Nc7 {was necessary.} 19. b4 (19. Nfxd4 Nxb5 20. Nxb5 Qc8 $16) (19. Nbxd4 Qe8 $16) 19... Nxb5 20. cxb5 Rc8) 19. Bc1 {[%cal Of3g5] Hoping for Nxg5!} Bxf3 20. Bxf3 Nxe5 21. Bg2 (21. Bxa8 $2 Qxa8 22. Rd3 (22. Nxd4 $2 Bxd4 23. Rfe1 Nf3+ 24. Kf1 Nxh2+ 25. Kg1 Nf3+ 26. Kf1 Nxe1 $19) 22... Qe4 $19) 21... Nc7 22. Nxd4 Qf6 (22... Bxd4 $16 {was called for.} 23. Be3 Qf6 24. Rxd4 (24. Bxd4 Nf3+ 25. Bxf3 Qxf3 $16) (24. Bxa8 Rxa8 25. Bxd4 Nf3+ 26. Kg2 Nxd4 $17) 24... Nf3+ 25. Bxf3 Qxf3) 23. Nb3 Rad8 (23... Nf3+ $142 24. Kh1 Rad8) 24. Nxc5 bxc5 25. Qe4 $1 Qf5 26. Qb7 Rxd1 27. Rxd1 Qc2 28. Rf1 Ne8 29. Qxa7 {And now Be3 would win.} Qxc4 (29... Nd6 $16) 30. Bd2 Nd6 {[#]} 31. Qc7 $1 Ne4 {[#]} (31... Qd3 $16 32. Qxc5 Ne4 33. Qxe5 Nxd2) 32. Bxg5 $1 {[%mdl 512] A strong pair of Bishops.} Nf3+ 33. Bxf3 Nxg5 34. Bg2 Qd4 35. Qf4 Qxb2 36. h4 Nh7 37. Qxh6 Qd4 38. Re1 Rb8 {[#]} 39. Re4 $1 ({Not} 39. Be4 Nf6 $16) 39... Qg7 40. Qf4 Rb1+ 41. Kh2 Qf6 (41... Nf6 {is a better defense.} 42. Rc4 e5) 42. Qe3 Qg7 43. Qxc5 Nf6 44. Qc8+ (44. Rf4 $142) 44... Qf8 45. Qxf8+ Kxf8 {[%mdl 4096] Endgame KRB-KRN} 46. Rf4 Kg7 47. a4 Ra1 48. Bc6 Rc1 49. Bf3 Ra1 50. Kg2 Ra2 51. Rd4 Ra3 52. g4 e5 (52... Kg6 $142 53. g5 Nh5) 53. Rc4 e4 54. Bxe4 Nxg4 55. Bc2 Ne5 56. Rc5 ({Better is} 56. Re4 $18 Ng6 57. Rg4) 56... Nd7 {[%mdl 8192] This costs Black the game.} (56... Nf3 $14) 57. Rb5 Nf8 58. Bb3 Ng6 59. Kg3 f6 $2 (59... Ne7 60. Kf4 Nc6) 60. Rb7+ Kh6 61. f4 {[%cal Oh4h5]} f5 (61... Ra1 $142 62. h5 Nf8) 62. h5 {[%cal Bh4h5,Bh5h6][%mdl 32]} Nf8 63. Kh4 {Strongly threatening Rb6+.} Ra1 64. Rb6+ Kg7 65. Kg5 {White threatens Rb7+ and mate.} Rh1 66. h6+ {White mates.} Kh8 67. Rb8 Kh7 68. Rxf8 Rh5+ 69. Kf6 {Weighted Error Value: White=0.24 (precise) /Black=0.43} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.1"]
[White "Niemann, Hans Moke"]
[Black "Artemiev, Vladislav"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2642"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,-6,0,-14,-23,-27,-19,-31,-21,-36,-23,-36,-25,-35,-18,-57,-41,-53,-51,-45,-43,-81,-82,-87,-81,-79,-57,-63,-57,-100,-47,-85,-75,-120,-114,-106,-116,-174,-167,-159,-125,-158,-117,-121,-116,-119,-118,-121,-143,-133,-94,-98,-68,-221,-214,-198,-205,-485,-495,-492,-492,-487,-495,-504,-497,-498,-498,-486,-477,-487,-479,-431,-377,-766,-719,-978,-936,-923,-864,-868,-854,-1665,-1488,-1689,-5479,-29981,-29982,-29982,-29983,-29982,-29974]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 a6 4. e3 b5 5. h4 {[#]} h6 $146 ({Predecessor:} 5... e6 6. h5 h6 7. Nf3 Bd6 8. Ne5 Bb7 9. g4 Nfd7 10. Bg2 Bxe5 11. Bxe5 Nxe5 12. dxe5 {0-1 (51) Alekseenko,K (2703)-Bacrot,E (2672) Chess.com INT 2021}) 6. Nf3 {D00: 1 d4 d5: Unusual lines.} e6 7. Ne5 c5 8. g4 {The position is equal.} Nfd7 9. Nf3 Nc6 10. Bg2 b4 11. Ne2 {[%cal Oc2c4]} a5 12. Ng3 {[%cal Oc2c4]} cxd4 13. exd4 {[%cal Oc2c4]} Ba6 14. Bf1 Qb6 15. Be2 Bxe2 16. Nxe2 Nf6 {[%cal Bd7f6,Bf6e4,Be4c3][%mdl 32]} 17. Rg1 Be7 18. Qd3 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 19. Be3 (19. Nd2 $15 {deserves consideration.}) 19... Qa6 (19... a3 $17 20. b3 Rc8) 20. Rc1 Ne4 21. Ng3 (21. Qxa6 $142 Rxa6 22. Kf1) 21... a3 $17 22. b3 Nc3 23. Ra1 (23. Qxa6 $17 Rxa6 24. Ra1) 23... Qxd3 $19 24. cxd3 Kd7 25. Kd2 Rhc8 {Black is much more active.} ({Black should play} 25... f6 26. h5 Bd6) 26. Ne2 $17 Nxe2 ({And not} 26... Bf6 27. g5 hxg5 28. hxg5 $15) 27. Kxe2 Na7 28. Rgc1 {Inhibits Rc2+.} Nb5 29. Bd2 Ke8 30. Ke3 Bd6 31. Ne1 $2 {This costs White the game.} ({Better is} 31. h5 $15) 31... g5 $19 32. hxg5 hxg5 33. Nc2 $2 {[#]} (33. Kf3 {is a better defense.}) 33... Rxc2 $1 {[%mdl 512]} 34. Rxc2 Bf4+ 35. Ke2 Nxd4+ 36. Kd1 Nxc2 37. Kxc2 {[%mdl 4096] Endgame KRB-KRB} Rc8+ 38. Kd1 Bxd2 39. Kxd2 {KR-KR} Ke7 40. Rh1 Kf6 {[#] White must now prevent ...Ke5.} 41. Rh6+ $2 (41. Re1) 41... Ke5 42. Rh7 Rc7 43. Rh8 Kf4 44. Rb8 Kxg4 45. Rxb4+ Kf3 46. Rb8 g4 {[%cal Bg5g4,Bg4g3][%mdl 32]} 47. b4 Kxf2 {Black mates.} 48. b5 g3 49. b6 Re7 {Weighted Error Value: White=0.72/Black=0.06 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.2"]
[White "Praggnanandhaa R"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2612"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,90,4,6,13,0,11,2,8,0,0,0,0,-8,12,-10,37,20,10,29,32,18,63,59,56,56,58,9,9,16,21,8,29,26,26,28,25,39,32,7,6,0,26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,5,10,10,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 Bxd3 6. Qxd3 e6 7. Nf3 Qa5+ {B12: Caro-Kann: Advance Variation.} 8. Nbd2 Nh6 9. O-O Nf5 10. a4 {10.Nb3 is becoming the main line.} Qa6 11. c4 Bb4 {Prevents Qc3.} 12. b3 c5 13. Qb1 Nxd4 (13... dxc4 $11 14. dxc5 Bxd2 15. Bxd2 cxb3) 14. Nxd4 $14 cxd4 {[#]} 15. cxd5 $146 ({Predecessor:} 15. Rd1 Qa5 16. cxd5 Qxd5 17. Nf3 Nc6 18. Bb2 Qxb3 19. Nxd4 Nxd4 20. Bxd4 Qxb1 21. Raxb1 {½-½ (35) Becker,A-Johnson,S ICCF email 2021}) 15... exd5 16. Nf3 {[%cal Oe5e6]} Qg6 (16... O-O $11) 17. Qxg6 fxg6 18. Bb2 ({Reject} 18. Nxd4 Bc3 19. Be3 Bxa1 20. Rxa1 Nc6 $17) 18... Nc6 19. Nxd4 (19. Rfd1 $14) 19... Nxd4 $11 20. Bxd4 Ke7 21. Rfd1 Rhc8 22. Rd3 Rc6 $1 23. Rad1 Ke6 $1 24. Rg3 Kf7 25. Rf3+ Ke6 26. Rg3 Kf7 27. f4 {[%cal Of4f5]} Be7 {The position is equal.} 28. f5 gxf5 {White must now prevent ...g6.} 29. e6+ $1 {[%mdl 64] [#] Decoy} Kxe6 30. Re1+ Kd7 {aiming for ...g6.} 31. Rxg7 Re6 32. Rxe6 Kxe6 {[%mdl 4096] Endgame KRB-KRB} 33. Rg6+ Kd7 34. Rh6 Bxh4 35. Rxh5 Bg3 36. Rxf5 Kc6 37. Rf6+ Kd7 38. Rg6 Bd6 39. g4 a6 40. Kf2 Re8 41. g5 Re4 42. Rg7+ Ke6 43. Rg6+ Kd7 44. Rg7+ Ke6 45. Rg6+ Kd7 {Weighted Error Value: White=0.05 (flawless) /Black=0.04 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.3"]
[White "Le, Quang Liem"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2709"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,77,0,0,15,12,30,21,25,25,25,12,51,18,68,68,74,78,93,90,88,86,94,90,105,95,110,105,122,108,99,95,125,106,123,124,140,135,136,131,153,100,172,183,204,194,270,267,419,424,455,452,565,555,561,565,660,597,596,606,1066,1076,1073,1048,29987,29988,29988,1262]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. a3 Bxc3+ 7. bxc3 h6 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. e3 Bd7 {[%cal Oc6d4]} 9. Qc2 O-O {The position is equal.} 10. cxd5 exd5 11. Bd3 {[#]} Bg4 $146 ({Predecessor:} 11... Re8 12. O-O Bg4 13. Nd2 Qe7 14. a4 h5 15. f3 Qxe3+ 16. Kh1 Bd7 17. Ne4 Nxd4 18. Qb1 {1-0 (18) Langensteiner,M (1985)-Franz,A (1818) Bad Homburg 2019}) 12. O-O Nd7 (12... Na5 $11) 13. Nd2 $14 Na5 14. c4 dxc4 15. Nxc4 Nxc4 16. Bxc4 {And now f3 would win.} Nf6 17. Rb1 Rb8 18. Bb2 {White is more active.} c6 19. e4 Re8 20. Rfe1 {[%cal Bf1e1,Be1e3,Be3g3][%mdl 32]} Be6 21. Bf1 Qa5 22. h3 Nh5 23. Re3 Nf4 24. Rd1 Rbd8 25. Qc1 {[%cal Od4d5]} Ng6 26. Bd3 (26. Rg3 $142) 26... Qg5 (26... Nf4 $16) 27. Qc3 $18 {[%cal Od4d5]} Bc8 28. Rg3 Qh5 (28... Qf6 {was worth a try.} 29. Qb3 Qd6) 29. Rf1 {Hoping for f4.} Re7 (29... f6 $142 30. f4 (30. e5 f5 $16) 30... Ne7) 30. Bc2 ({Less strong is} 30. d5 Qe5 $18) 30... Kh7 31. d5 {[%csl Gb2][%cal Rc3g7,Bd4d5,Bd5d6][%mdl 32]} Rg8 32. d6 Ree8 33. f4 {[%cal Bf2f4,Bf4f5,Bf5f6][%mdl 32] To avoid Qe5} Qh4 34. e5 {[%cal Oe5e6] Black must now prevent e6!} Kh8 35. Qe3 Nf8 36. f5 Nh7 37. e6 {[%cal Of5f6] Intending f6! and mate.} fxe6 38. f6 Nxf6 {[#]} 39. Rf4 {Weighted Error Value: White=0.05 (flawless) /Black=0.50} (39. Rxf6 $142 $1 {[%mdl 512]} e5 {[#]} 40. Rxg7 $3 {[%mdl 512]} Rxg7 41. Rxh6+ Kg8 42. Rxh4 Kf7 43. Bxe5 Re6 44. Rh8) 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.4"]
[White "Hansen, Eric"]
[Black "Nepomniachtchi, Ian"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2606"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,105,8,0,7,21,25,18,31,35,9,62,63,66,64,58,30,30,14,29,26,5,21,51,51,60,40,44,37,44,27,34,28,45,32,91,89,140,133,138,117,163,149,151,144,229,227,212,196,242,240,289,287,302,304,314,279,249,258,299,278,822,808,685,566,566,524,645,614,997,997,962,933,922,925,936,844,934,933,1157,914,861,0,1023,804,945,916,973,973,1537,1539,1914,1859,4956,1350,1412,1367,1112,971]} 1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 d5 6. exd5 {B40: Sicilian: 2...e6, Unusual lines.} Qxd5 7. O-O Be7 {[#]} 8. Re1 $146 {The position is equal.} ({Predecessor:} 8. b3 O-O 9. Bb2 Qd8 10. Na3 Nd5 11. Nc4 Bd7 12. Nfe5 Rc8 13. Rae1 Nf6 14. f4 {1-0 (56) Pirverdiyev,A (2298)-Bru Rullo,L (2222) Benidorm 2018}) 8... O-O 9. b3 Nd4 (9... Qh5 $11) 10. Nxd4 $14 Qxd4 11. Nc3 Rd8 12. Rd1 e5 13. Bb2 Bg4 14. Bf3 Bxf3 15. Qxf3 e4 16. Qe2 Bf8 17. d3 exd3 18. Rxd3 Qb4 19. Rad1 {[%cal Ba1d1,Bd1d3,Bd3d8,Bd8b8][%mdl 32]} Rxd3 20. Rxd3 Re8 21. Qf3 h6 (21... Qb6 $14) 22. Kg2 $1 $16 {White now steadily converts the win.} Re6 {[#]} ({Black should try} 22... Be7) 23. Rd8 $1 Qb6 24. Rb8 Rc6 (24... Re7 $16) 25. Nd5 Nxd5 26. Qxd5 {aiming for Qe5.} Qc7 {[#]} (26... Rd6 $16 27. Qf3 (27. Qxb7 Qxb7+ 28. Rxb7 Rd2 $16) 27... Rd2) 27. Be5 $1 $18 Qe7 28. c4 Re6 (28... g5 {was called for.} 29. Bc3 Rb6) 29. Bf4 Rc6 30. h4 {To avoid g5} Kh7 31. h5 g5 32. hxg6+ Kxg6 33. Be5 ({Much less strong is} 33. g4 $6 Kh7 34. Kf1 Kg8) 33... f6 34. Bf4 Bg7 $2 (34... h5 35. Ra8 a6) 35. g4 {[%cal Bg3g4,Bg4f5][%mdl 32] Qh5+ would kill now.} Qe6 36. Qh5+ Kh7 37. Rxb7 {Intending Qxh6+ and mate.} Qe4+ 38. Kg3 f5 39. Qxf5+ Qxf5 40. gxf5 {[%mdl 4096] Endgame Threatening mate with Be5. KRB-KRB} Kg8 41. Rxa7 Bd4 42. Be3 Bc3 43. Kg4 Kf8 44. Bf4 Bd4 45. Be3 Bc3 $1 46. Rd7 {White is clearly winning.} Kg8 47. Rd5 Ra6 48. Rxc5 Rxa2 49. Rb5 Kf7 50. Rb7+ Kf6 51. Rb6+ Kf7 52. c5 Ra1 53. Rxh6 {Weighted Error Value: White=0.24 (precise) /Black=0.30} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.5"]
[White "Ding, Liren"]
[Black "Esipenko, Andrey"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2799"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,118,9,14,13,7,0,0,0,0,-5,-8,0,0,1,36,33,46,41,33,6,54,35,33,22,29,33,25,11,13,0,0,0,0,0,0,16,9,0,13,0,4,0,0,-21,16,17,52,50,43,48,139,19,19,29,66,66,71,68,60,0,25,0,4,0,12,13,16,12,10,12,12,3,1,2,6,1,7,0,26,6,16,0,0,0,0,-54,-61,-72,-54,-295,-3,-42,-42,-42,-42,-1096,-1154,-1130,-1079,-1018,-963,-1045,-994,-29991,-29992,-29996,-29997,-29997,-29998,-29998,-29999]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bb4 5. d3 a6 6. Be2 {A28: English Opening: Four Knights Variation.} d6 7. h3 Bc5 8. O-O {The position is equal.} O-O 9. Be3 {[%cal Of3e5]} Nd4 10. Qd2 h6 {[#]} 11. Bd1 $146 ({Predecessor:} 11. Bxd4 exd4 12. Nd5 Nh7 13. Nh2 c6 14. Nb4 Bb6 15. Nc2 f5 16. exf5 Bxf5 17. Bg4 {0-1 (34) Klug,W (2056)-Galonska,J (2291) Germany 2011}) 11... Nh7 12. Bxd4 exd4 13. Ne2 Qf6 14. Ng3 b5 (14... a5 $11 {feels stronger.}) 15. Rc1 {[%cal Ba1c1,Bc1c4,Bc4a4][%mdl 32]} bxc4 16. Rxc4 Be6 17. e5 Qe7 18. exd6 cxd6 19. Ra4 Bd7 20. Re1 Qd8 21. Rc4 a5 22. a3 $36 {[%mdl 2048] White fights for an advantage.} Be6 23. Rc2 ({Of course not} 23. Nxd4 Bxc4 24. dxc4 Qg5 25. Qxg5 Nxg5 $17) 23... Nf6 24. b4 axb4 25. axb4 Bb6 26. Ne4 Nxe4 27. dxe4 Qf6 28. Rc6 {[%csl LRb6,LRd6]} Ra2 29. Qd3 Qd8 (29... Rb8 $14) 30. Bb3 ({White should try} 30. Bc2 $16) 30... Ra3 $11 31. Rb1 Qb8 {[#]} 32. Qb5 $1 Bxb3 {[%cal Be6b3,Bb3c2,Bc2e4,Be4b7][%mdl 32]} 33. Rxb6 Qa8 34. Re1 (34. Nxd4 Qxe4 $1 35. Rxb3 Ra1+ 36. Kh2 Qf4+ 37. Rg3 Qxd4 $11) (34. Qc6 $1 $14) 34... Bc2 35. Nxd4 Bxe4 36. f3 Ra1 37. Qf1 Rxe1 38. Qxe1 Qd8 $1 39. Ra6 Bb7 40. Ra3 Qb6 41. Qe3 Bc8 {Prevents Nf5.} (41... Qxb4 $2 42. Rb3 Qc5 43. Rxb7 $18) 42. Nc2 Qb8 43. Qd4 Be6 44. Ne3 Rc8 45. Ra6 Rc1+ 46. Kf2 d5 47. f4 ({White should play} 47. Nxd5 $11 Rc2+ 48. Kg1) 47... Rb1 $1 $15 48. Rb6 Qc7 49. b5 $2 (49. Rb5 $15) 49... Qc1 $2 (49... Qa7 $1 $19 {[%cal Ob1b5] Strongly threatening ...Rxb5!} 50. Qc5 Qa4) 50. Rb8+ ({Don't play} 50. Kf3 Rb3 51. Kf2 Kh7 $17) (50. Qd3 $5 {[%cal Rb6b8]} Rb2+ 51. Kg3 $11) 50... Kh7 $1 {The board is on fire.} 51. Qd3+ $1 f5 52. Kf3 $2 {[%mdl 8192]} (52. Re8 $15 Qe1+ 53. Kf3) 52... d4 $1 $19 53. Qxd4 Rb3 {( -> ...Qf1+)} 54. Kf2 {[#] To avoid Qf1+} Rb2+ $1 ({Not} 54... Rb1 55. Rb7 Qb2+ 56. Qxb2 Rxb2+ 57. Ke1 $16) 55. Kf3 {[#]} Rd2 $1 56. Qe5 {[#]} Qe1 $1 {[%csl Gd2][%cal Re1f2] Black mates.} 57. Nxf5 (57. Qxg7+ Kxg7) 57... Qf2+ 58. Kg4 Qxg2+ 59. Kh4 g5+ {Weighted Error Value: White=0.42/Black=0.18 (very precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.6"]
[White "Duda, Jan-Krzysztof"]
[Black "Abdusattorov, Nodirbek"]
[Result "1/2-1/2"]
[ECO "D86"]
[WhiteElo "2760"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,54,18,21,25,19,33,18,60,58,27,27,17,0,0,0,0,0,0,0,0,0,0,-54,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 cxd4 10. cxd4 b5 {10...Qa5+ is a critical line.} 11. Bd5 Bd7 12. Rc1 Rc8 {D86: Exchange Grünfeld: Classical Line (7 Bc4).} 13. O-O O-O 14. Bxc6 Rxc6 (14... Bxc6 $11 15. d5 Bd7) 15. Rxc6 $14 Bxc6 {This bishop pair is nice.} 16. d5 Bd7 {[#]} 17. Bd4 $146 ({Predecessor:} 17. Qd2 a5 18. Nd4 e6 19. Rc1 exd5 20. exd5 b4 21. h3 Re8 22. Nc6 Bxc6 23. dxc6 Qxd2 24. Bxd2 Be5 25. g3 f6 26. Kg2 {½-½ (26) Sakaev,K (2672)-Najer,E (2615) Sochi 2005}) 17... Qa5 18. Bxg7 Kxg7 19. Qd4+ Kg8 20. Qc5 Qxa2 21. Ng3 Re8 {Strongly threatening ...Qa4.} 22. h4 ({Better is} 22. Qc7 $1 $11 Bc8 23. Qc6) 22... h5 (22... Qa4 $15) 23. Qc7 $11 {The position is equal.} Bg4 24. Qc6 {[%csl LRb5,LRe8]} Rb8 25. Qc7 $1 {[%csl LRb8,LRe7]} Re8 26. Qc6 {[%csl LRb5,LRe8]} Rb8 27. Qc7 $1 {[%csl LRb8,LRe7]} Re8 {Weighted Error Value: White=0.07 (flawless) /Black=0.05 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.7"]
[White "Aronian, Levon"]
[Black "Carlsen, Magnus"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2772"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,116,37,33,27,29,0,25,32,26,27,7,17,34,20,39,0,0,0,0,0,0,0,8,20,22,9,12,0,85,-52,-52,-38,-50,-112,-114,-119,-118,-129,-89,-92,-91,-93,-87,-72,-71,-119,-114,-118,-124,-121,-115,-144,-145,-145,-111,-107,-108,-112,-92,-88,-39,-34,-41,-18,-20,-44,-41,-42,-41,-42,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. d3 d6 6. Bxc6+ bxc6 7. e5 $1 {[%mdl 4] is recently more successful than 7.h3. B31: Sicilian: 2...Nc6 3 Bb5 g6.} dxe5 {[%cal Oc5c4]} 8. Nc3 Qc7 {[%cal Oc5c4]} (8... c4 9. Re1 Qd6 10. Bg5 cxd3 11. cxd3 Bg4 12. Ne4 Qd5 13. Rc1 Nf6 14. h3 Nxe4 15. dxe4 Qxd1 16. Rexd1 Bd7 17. Ne1 f6 18. Be3 {1-0 (66) Aronian,L (2781)-Carlsen,M (2847) chess24.com INT 2021}) 9. Re1 {White has an edge.} Bg4 {[%cal Oc5c4]} 10. h3 Bxf3 11. Qxf3 Rd8 {[%cal Oc5c4] [#]} 12. b3 $146 {[%mdl 1024] White has compensation.} ({Predecessor:} 12. Be3 Nh6 13. Bxc5 {½-½ (13) Garbarino,R (2350)-Alonso,S (2490) Buenos Aires 2010}) 12... Nf6 {[%cal Bg8f6,Bf6d5,Bd5b4,Bb4d3,Bd3e1,Be1f3][%mdl 32]} 13. Ba3 {[%cal Bc1a3,Ba3c5,Bc5b6][%mdl 32]} Nd5 14. Na4 Nb4 15. Qe2 e4 $1 16. d4 a5 (16... Rxd4 17. c3 (17. Nxc5 Nd5 $11) 17... Rd5 18. cxb4 Bxa1 19. Rxa1 $16) 17. c3 $1 Nd3 18. Bxc5 Nxe1 19. Bb6 Qd7 20. Nc5 {[#]} ({Much weaker is} 20. Qxe1 Rb8 $11) ({Of course not} 20. Qxe4 Qd5 21. Qxe1 Rb8 $11) (20. Bxd8 $16 {And now Bb6 would win.} Nxg2 21. Qxe4 $1 (21. Kxg2 Qxd8 22. Qxe4 O-O $11)) 20... Nf3+ $1 $15 21. gxf3 exf3 {[%cal Be4f3,Bf3e2][%mdl 32]} 22. Nxd7 (22. Qf1 $15 Qd5 23. Bxd8 Qxd8 24. Qd3) 22... fxe2 $17 23. Bxd8 Kxd8 $15 {[%mdl 4096] Endgame KRB-KRN} 24. Nc5 e5 25. dxe5 Bxe5 26. Re1 Bxc3 27. Rxe2 Kc7 28. Ne4 ({White should try} 28. Na4 Bf6 29. Re4) 28... Bb4 $17 29. Ng5 {[#]} f6 $1 30. Nf3 Rd8 31. Kg2 Kb6 32. h4 h6 33. Re6 Rd6 34. Re8 g5 35. Rb8+ Kc7 (35... Kc5 $17 36. Rh8 f5) 36. Rh8 $15 g4 37. Nh2 f5 38. Rf8 Rd5 39. Rf7+ Kb6 {White must now prevent ...Bd6.} 40. Nf1 Bc5 (40... Bd2 $15) 41. h5 $11 {The position is equal.} f4 42. Rxf4 Rxh5 43. Rxg4 Rg5 44. Rxg5 hxg5 {KB-KN} 45. Nd2 Kb5 46. f3 Kb4 47. Kf1 Bd6 48. Ke2 Bf4 {( -> ...Bxd2)} 49. Nc4 a4 50. Kd3 axb3 51. axb3 Kxb3 52. Na5+ Kb4 53. Nxc6+ Kc5 54. Nd4 Kd5 55. Ne2 Ke5 56. Nxf4 Kxf4 57. Ke2 g4 58. fxg4 Kxg4 {Weighted Error Value: White=0.11 (very precise) /Black=0.09 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "13.8"]
[White "Mamedyarov, Shakhriyar"]
[Black "Giri, Anish"]
[Result "1-0"]
[ECO "D47"]
[WhiteElo "2767"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "157"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,157,0,-9,16,-12,-18,-31,-31,-30,-18,-31,-26,-43,-36,-52,0,-28,-28,-20,-20,-31,-19,-25,-27,-35,-14,-7,0,-1,0,-23,0,0,0,0,0,-6,0,0,0,-27,-16,-22,0,-4,0,0,33,32,216,243,233,235,362,362,362,354,452,445,445,445,445,508,510,502,506,477,518,482,587,476,583,531,849,835,989,980,1400,1371,1985,1885,1571,0,1352,0,1564,1509,1366,1252,12837,12838,12841,12841,12841,12842,12842,12839,12839,12839,12842,12843,12843,12840,12841,12841,12841,12841,12844,12844,12845,12845,12845,12846,12847,12846,12846,12846,12847,12847,12848,12848,12849,12849,12849,12849,12850,12850,27999,27999,27999,27999,27999,27999,27999,27999]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. O-O cxd4 {12...h6 is the fancy move.} 13. Nxd4 g6 {D47: Semi-Slav: Meran System.} 14. f4 $5 {[%cal Of4f5][%mdl 4] [#] Black must now prevent f5! Exploring less charted territory.} ({But not} 14. Bb5 a6 15. Bxd7+ Qxd7 $15) (14. Qg4 $5 {[%cal Rd4e6]}) 14... Bg7 $146 ({Predecessor:} 14... Be7 15. f5 exf5 16. e6 N7f6 17. Bb5+ Kf8 18. Nxf5 gxf5 19. Bh6+ Kg8 20. Rxf5 fxe6 21. Rg5+ Kf7 22. Rg7+ Kf8 23. Qf3 Qd6 24. Rf1 Bc6 25. Qh5 {1-0 (25) Mamedyarov,S (2766)-Le,Q (2705) Moscow 2013}) 15. a3 O-O {Black is slightly better.} 16. axb4 Nxb4 {[%cal Od7e5]} 17. Be2 Qe7 {Threatening ...Rad8.} 18. Bf3 Nb6 $1 19. Bd2 {[#] Bxb7 is the strong threat.} Nxa4 ({Black should play} 19... Rad8 $15 20. Bc3 N6d5) 20. Rxa4 (20. Qxa4 $5 {[%cal Rd2b4]} a5 21. Bxb7 Qxb7 22. Bxb4 axb4 23. Qc6 Qxc6 24. Nxc6 $11) 20... a5 21. Kh1 Rfd8 22. Bxb4 axb4 23. Rxa8 Rxa8 24. Nb5 Rd8 25. Nd6 Ba6 26. Be2 Bb7 27. Bf3 Ba6 28. Rf2 {[%cal Bf1f2,Bf2d2,Bd2d4,Bd4a4][%mdl 32]} Qa7 29. Rd2 Qe3 30. Rd4 b3 31. h3 h5 32. Ra4 Bd3 33. Qxb3 h4 34. Qb4 {Active counter play!} Bh6 35. Qd4 Qe1+ 36. Qg1 Qg3 {Black is on the road to losing.} (36... Qxg1+ $14 37. Kxg1 Bg7) 37. Rd4 $18 Bxf4 38. Rxd3 {And now Be4 would win.} Bxe5 {[#]} (38... Bg5 $142 39. Ra3 Qxe5) 39. Ne4 $1 {[%csl LRd8,LRg3][%mdl 512]} Rxd3 40. Nxg3 Bxg3 41. Qc1 Rb3 42. Bd1 Rb5 43. Be2 Rb8 {To avoid Qc8+} 44. Qc2 Be5 45. b3 Kg7 46. Kg1 Bg3 47. Kf1 Rd8 48. Qc3+ e5 49. b4 Rd6 50. Bf3 Rf6 51. Ke2 Rb6 52. Bd5 Rf6 53. Bf3 Rb6 54. Bd5 Rf6 $1 55. b5 Rf2+ 56. Kd3 f5 57. b6 Kh6 58. b7 e4+ 59. Ke3 Rxg2 60. Qh8+ Kg5 61. Qd8+ Kh5 62. b8=Q Bf2+ 63. Ke2 Ba7+ 64. Kd1 Rg1+ 65. Kc2 {[%cal Bd1c2,Bc2c3,Bc3d4,Bd4e5,Be5f6,Bf6g6,Bg6f5,Bf5e4][%mdl 32]} Rg2+ 66. Kc3 {White wants to mate with Qf4.} Bxb8 67. Qxb8 Rg3+ 68. Kd4 Rxh3 69. Ke5 Rf3 70. Bc4 h3 71. Be2 {Kf6 would kill now.} Kg4 72. Kf6 f4 73. Qb1 {Threatening mate with Qg1+.} h2 {Prevents Qg1+.} 74. Kxg6 Kg3 75. Bxf3 Kxf3 76. Qh1+ {White mates.} Kg3 77. Kf5 e3 78. Ke4 e2 79. Qf3+ {Weighted Error Value: White=0.10 (very precise) /Black=0.32} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.1"]
[White "Artemiev, Vladislav"]
[Black "Giri, Anish"]
[Result "1/2-1/2"]
[ECO "D42"]
[WhiteElo "2700"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,63,0,6,0,3,4,39,8,8,2,8,12,22,4,17,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,20,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 c5 5. d4 Nc6 6. cxd5 Nxd5 7. Bd3 Be7 8. O-O O-O 9. a3 cxd4 10. exd4 Bf6 11. Be4 Nce7 12. Ne5 {[%cal Bf3e5,Be5g4,Bg4e3][%mdl 32] [#] has lost popularity (12.Qd3). D42: Queen's Gambit Declined: Semi-Tarrasch: 5 cxd5 Nxd5 6 e3 Nc6 7 Bd3 .} Ng6 $146 ({Predecessor:} 12... Nf5 13. Re1 Nde7 14. Be3 Nxe3 15. fxe3 Bxe5 16. dxe5 Qa5 17. Qd6 Nf5 18. Bxf5 exf5 19. b4 Qd8 {½-½ (50) Artemiev,V (2704)-Svidler,P (2760) Sochi 2018}) 13. Ng4 Bg5 {[#] Threatens to win with ...Nxc3.} 14. Nxd5 {White is slightly better.} (14. Bxd5 $5 exd5 15. Bxg5 Qxg5 16. Ne3 $14) 14... exd5 {The position is equal.} 15. Bxg6 hxg6 16. Bxg5 Qxg5 17. Ne3 (17. Ne5 {seems wilder.} Bh3 18. Qf3 Be6 19. Qb3 Rac8 20. Rae1) 17... Be6 18. Re1 Rfc8 19. Qd2 Rc7 20. Rac1 Rac8 21. Rxc7 Rxc7 22. Rc1 Rxc1+ 23. Qxc1 Qf4 24. Qc3 g5 25. h3 b6 26. Nf1 g6 27. Qe3 Kg7 28. Qc3 Kh7 29. Ng3 Kg7 30. Nf1 Kh7 31. Ng3 Kg7 32. Nf1 {An interesting draw.  Weighted Error Value: White=0.04 (flawless) /Black=0.02 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.2"]
[White "Carlsen, Magnus"]
[Black "Mamedyarov, Shakhriyar"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "2865"]
[BlackElo "2767"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,75,6,23,15,44,35,33,25,25,16,26,0,0,0,0,-3,21,0,0,-14,0,-4,-14,-21,-10,-17,-13,-8,-8,-8,0,0,0,0,0,0,0,0,88,96,101,81,127,119,105,82,403,383,375,370,1535,1315,1253,1112]} 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d4 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Re8 10. h3 a6 11. Re1 Rb8 12. a4 a5 13. Be3 {E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4.} c6 14. Qc2 Nc5 {[%cal Bd7c5,Bc5a6,Ba6b4][%mdl 32]} 15. b3 {White is slightly better.} Nfd7 {[#]} 16. Rab1 $146 ({Predecessor:} 16. Rad1 Qb6 17. Rb1 Qd8 18. Rbd1 Qb6 19. Rb1 Qd8 20. Rbd1 {½-½ (20) Pershin,D (2387)-Murzin,V (2470) Sochi 2020}) 16... Na6 17. f4 Ndc5 {[%cal Of7f5]} 18. Qd2 Nb4 19. Kh2 h5 20. Re2 Qf6 21. Qd1 Bd7 22. Rd2 Rbd8 23. Nde2 Bc8 24. Bd4 Qe7 25. Bxg7 Kxg7 26. Nd4 Qf6 27. Qf3 $1 Re7 28. Rbd1 Rde8 {...Nxe4 is the strong threat.} 29. Qe3 {[%cal Od4c6]} Kg8 30. Nde2 Re6 (30... Rd7 $1 $11 {keeps the balance.}) 31. e5 $1 $16 {[%cal Rd2d6]} Qe7 {[%cal Rd6e5]} 32. Nd4 ({Not} 32. Rxd6 $2 Rxd6 33. Rxd6 Qxd6 $1 $19) 32... dxe5 33. Nxe6 Bxe6 34. Rd6 $36 {[%mdl 2048] Black is under strong pressure.} Nxb3 {[%mdl 8192] Loses the game.} (34... Nba6 $16 {is more resistant.}) 35. fxe5 $18 {Black must now prevent Ne4.} ({Weaker is} 35. Ne4 Nd4 $16) 35... Bf5 {[#]} 36. e6 Bc2 (36... Nc2 37. Qf2 fxe6) 37. exf7+ Qxf7 38. Ne4 {Weighted Error Value: White=0.05 (flawless) /Black=0.27 (precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.3"]
[White "Abdusattorov, Nodirbek"]
[Black "Aronian, Levon"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2651"]
[BlackElo "2772"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,114,0,0,-8,32,-15,-15,-7,-7,-7,-7,-15,-18,-9,-8,-17,-11,-35,11,0,0,-14,-9,-33,0,0,6,10,15,10,14,12,6,10,4,7,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-29,-29,-43,-32,-225,-214,-222,-219,-225,-216,-228,-228,-430,-426,-592,-454,-667,-633,-645,-674,-1718,-1656,-29962,-29960,-29964,-29965,-29964,-29965,-29969,-29970,-29971,-29972,-29971,-29972,-12842,-1415]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e4 Bc5 5. Nxe5 Nxe5 6. d4 Bb4 7. dxe5 Nxe4 $1 8. Qf3 {outshines the older 8.Qd4. A28: English Opening: Four Knights Variation.} f5 9. Be2 (9. exf6 O-O $1 $15) (9. Bd3 $1 $14) 9... O-O $11 10. O-O {The position is equal.} Bxc3 11. bxc3 Qe7 {Prevents Ba3.} 12. Qe3 ({Much worse is} 12. Bf4 b6 $15) 12... b6 13. f3 Nc5 14. Ba3 {[#]} d6 $146 ({Predecessor:} 14... Bb7 15. Bxc5 bxc5 16. f4 d6 17. Bf3 Bxf3 18. Rxf3 Rfe8 19. Re1 Rab8 20. Qd3 Qf7 {½-½ (31) Tartakower,S-Thomas,G Ujpest 1934}) 15. f4 (15. Bxc5 $5 bxc5 16. f4 $11) 15... Be6 (15... Ne4 $15 {should be considered.}) 16. exd6 cxd6 17. Bf3 {Threatens to win with Bxc5.} Rae8 18. Rfe1 {Strongly threatening Bxc5.} Qf6 19. Qd4 Qxd4+ 20. cxd4 Nd3 21. Red1 Bxc4 22. Bxd6 {This bishop pair is nice.} Rf7 23. a4 Rd8 24. Be5 Rfd7 25. h4 Kf7 26. Rdb1 Nxe5 27. dxe5 Rd4 28. Rd1 Ke7 29. Kf2 Bb3 (29... Rxf4 $2 30. Rxd8 Kxd8 31. Rd1+ Ke8 32. Kg3 (32. g3 Rxf3+ 33. Kxf3 Bb3 $18) 32... Rxf3+ 33. gxf3 $18) 30. Rxd4 Rxd4 {[%mdl 4096] Endgame KRB-KRB} 31. a5 Rxf4 32. axb6 axb6 33. Ra7+ Kf8 34. Ra8+ Kf7 35. Ra7+ Kg6 36. Rb7 Rb4 37. Ke3 Kh6 38. Kd3 g6 39. Kc3 Rb5 40. Re7 Ba2 41. Re8 Rc5+ 42. Kd4 $2 {Now White is beyond hope.} (42. Kd3 $15) 42... Rc4+ $19 43. Ke3 Rxh4 44. e6 {[#]} Ra4 $1 45. Bc6 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 46. Bd7 $2 (46. e7 {might work better.} Ra7 47. Kd4 (47. Bxb5 $2 Bf7 $19)) 46... Re4+ 47. Kf3 Bd5 {...Rxe6+ is the strong threat.} 48. Kf2 (48. Rb8 $142 Rxe6+ 49. Kf2) 48... b4 49. Rb8 Bxe6 50. Bxe6 Rxe6 51. Rxb4 {KR-KR} Kg5 52. g3 h5 53. Kf3 Re4 54. Rb3 h4 55. gxh4+ Rxh4 56. Rb6 Rh3+ 57. Kg2 Rc3 {Weighted Error Value: White=0.41/Black=0.06 (flawless)} (57... Ra3 $142 58. Rb2 Kg4) 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.4"]
[White "Esipenko, Andrey"]
[Black "Duda, Jan-Krzysztof"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2714"]
[BlackElo "2760"]
[Annotator "TA"]
[PlyCount "142"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,142,11,12,0,18,16,9,6,12,14,44,0,34,0,0,0,25,0,0,0,18,0,0,-15,-15,0,0,-18,0,0,0,0,0,-83,-80,-89,-89,-160,-161,-166,-162,-183,-170,-170,-168,-332,-325,-360,-217,-185,-168,-315,-166,-159,-134,-144,-96,-111,-102,-122,-45,-61,-61,-67,0,-308,-178,-183,-179,-165,-176,-179,-175,-187,-185,-377,-285,-253,0,0,0,0,0,-10,-10,-11,-14,-10,-11,-16,-16,-15,-16,-35,-33,-33,-24,-23,0,-28,-6,-33,0,0,0,-34,0,0,0,0,0,0,0,-67,-47,-251,-130,-224,-131,-216,-161,-401,-377,-386,-371,-324,0,-300,-265,-370,-326,-429,-391,-753,-699]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. a4 a5 6. Nc3 {C50: Hungarian Defence and Giuoco Pianissimo.} h6 7. Be3 Bxe3 8. fxe3 {The position is equal.} d6 9. Qe2 {[#]} Ne7 $146 ({Predecessor:} 9... O-O 10. O-O-O Nb4 11. d4 Qe7 12. h3 exd4 13. exd4 d5 14. exd5 Qxe2 15. Bxe2 Nfxd5 16. Nxd5 Nxd5 {½-½ (42) Van Foreest,J (2702)-Robson,R (2676) Chess.com INT 2022}) 10. Nh4 (10. O-O-O $14) 10... Be6 11. O-O Bxc4 12. dxc4 Nd7 13. Qg4 g6 14. Rf2 Rh7 15. Raf1 c6 16. Rd1 Nc8 17. Nf3 (17. Nxg6 $2 Rg7 18. Qh4 Rxg6 $19) 17... Qe7 18. b3 Kd8 19. h4 Kc7 20. Qh3 Nc5 21. Rdf1 (21. h5 $11) 21... Nb6 $17 22. h5 Nbd7 23. hxg6 ({White should play} 23. Qh4 Qe6 24. Qh2) 23... fxg6 24. Nh4 Rg8 25. Qg4 Rhg7 26. Qh3 h5 27. Nf3 $2 (27. g3 {was called for.}) 27... g5 $19 28. Nd2 Rh7 {Threatens to win with ...g4.} 29. g3 Nf8 30. Rf6 (30. Qf5 {might work better.}) 30... Ncd7 (30... g4 $142 31. Qh4 Ng6 32. Rxg6 Qxh4 33. gxh4 Rxg6) 31. R6f5 Ng6 {And now ...g4 would win.} 32. Qh2 Rgg7 ({Better is} 32... Kb8 33. Qf2 h4) 33. c5 $17 Nxc5 34. Nc4 g4 (34... b6 $1 $17 35. Rf6 Rf7 36. Rxd6 (36. Rxg6 $2 Rxf1+ 37. Kxf1 Qf7+ 38. Kg1 Qxg6 $19) 36... Rxf1+ 37. Kxf1 h4) 35. Rxh5 Nf8 36. Rff5 ({Don't play} 36. Nxa5 Nfe6 37. b4 Nd7 $11) 36... Nfe6 (36... Rxh5 $15 37. Qxh5 Nh7) 37. Qe2 $2 {[%mdl 8192]} (37. Qh4 $11) 37... Rxh5 (37... Ng5 $142 38. Rxh7 Rxh7 39. Qxg4 Rg7) 38. Rxh5 $19 {[#]} Ng5 $1 39. Nd2 {To avoid Nf3+} Qf7 40. Rh6 Nf3+ 41. Nxf3 gxf3 42. Qh2 (42. Qf2) 42... Nd7 {Strongly threatening ...Nf6.} 43. Nd1 f2+ $2 (43... d5 $19 {White must now prevent ...Nc5.} 44. Nf2 d4 45. exd4 Qf4) 44. Qxf2 $11 Qe7 45. Qf3 Rf7 46. Qe2 Qg5 {[%csl LRg3,LRh6]} 47. Rh3 Nf6 48. Nf2 Qg6 49. g4 Nxe4 50. Nxe4 Qxe4 {[%mdl 4096] Endgame KQR-KQR} 51. Qg2 Qb4 {aiming for ...Qe1+.} 52. Qe2 {To avoid Qe1+} Rg7 53. Rg3 Rg5 54. Kh2 d5 55. Qf3 Qd2+ (55... Qc3 $5 {[%cal Rc3c2]} 56. Qf2 Qc5 $15) 56. Rg2 $1 Qe1 $36 {[%mdl 2048] Black is more active.} 57. Qg3 Qc1 58. Qf2 Kb6 59. Rg1 Qb2 60. Rg2 Qc3 61. Kh3 (61. e4+ $1 $11 d4 62. Qf6) 61... e4 {Black is more active.} 62. Qf4 $2 (62. Rg3 $1 $15) 62... Qh8+ 63. Kg3 {[#]} Rg8 (63... Rg6 $1 $19 {[%cal Rg6h6] Hoping for ...Rh6.} 64. g5 Rg8) 64. Rh2 (64. c4 $17) 64... Qc3 ({Weaker is} 64... Qg7 65. c4 $17) 65. g5 $2 (65. Rh7 Qe1+ 66. Kh2 Qd2+ 67. Kg3) 65... Qe1+ $19 66. Kg2 Qe2+ 67. Kg3 Qe1+ 68. Kg2 $1 Qd1 69. Rh7 {Intending Qc7+ and mate.} Qxc2+ 70. Kh3 {White wants to mate with Qc7+.} Qxb3 71. Kg4 $2 (71. Qc7+ Ka6 72. Kh4) 71... Qd1+ {Weighted Error Value: White=0.25 (precise) /Black=0.22 (precise)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.5"]
[White "Nepomniachtchi, Ian"]
[Black "Ding, Liren"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2773"]
[BlackElo "2799"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,133,10,0,11,7,29,5,19,4,21,13,10,18,6,5,4,11,18,0,0,0,0,0,0,0,0,1,18,0,0,0,0,0,0,-7,0,0,37,23,52,51,44,46,100,94,115,106,118,118,192,189,177,162,162,113,162,157,162,170,189,174,142,108,108,108,108,108,108,94,94,94,94,52,62,74,94,94,94,94,94,94,188,188,188,188,173,6,652,642,606,431,342,0,0,0,39,61,117,91,83,88,192,192,192,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {Krasenkow,Michal} e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3,Bb3a2][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a3 O-O 9. Nc3 Na5 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Ba2 Be6 11. b4 Nc6 12. Bg5 Bxa2 13. Rxa2 Qd7 14. Bxf6 Bxf6 15. Nd5 a5 16. Rb2 axb4 17. axb4 Bd8 18. c4 Nd4 19. Nxd4 exd4 20. Qc2 {[#]} c6 $146 ({Predecessor:} 20... Re8 21. g3 bxc4 22. Qxc4 c6 23. Nf4 Bg5 24. Ne2 d5 25. exd5 cxd5 26. Qb3 h5 {1-0 (40) Nepomniachtchi,I (2774)-Ding,L (2805) Ekaterinburg 2020 CBM 202 [Krasenkow,Michal]}) 21. Nf4 Qb7 22. cxb5 Qxb5 23. Ne2 Bf6 24. g3 Ra3 25. Rb3 Rxb3 26. Qxb3 Ra8 27. Rc1 g6 28. Qc4 $1 Qxc4 29. Rxc4 $14 {[%mdl 4096] Endgame KRB-KRN} Ra2 (29... d5 $14 30. exd5 (30. Rxc6 dxe4 31. Nf4 exd3 $11) 30... cxd5) 30. Kf1 $16 Ra1+ 31. Kg2 Ra2 32. Nxd4 Bxd4 (32... d5 $16 33. Rc2 Rxc2 34. Nxc2 dxe4) 33. Rxd4 {KR-KR} c5 34. bxc5 dxc5 35. Rd8+ Kg7 36. Kf3 $1 Kf6 37. Rc8 Rc2 38. h4 h5 39. Ke3 Ke6 40. Rc7 Kf6 41. Rc6+ Ke7 42. e5 Kd7 43. Rf6 Ke7 44. Ke4 ({Better is} 44. Ra6 $16) 44... Rd2 45. f4 Rg2 46. Rc6 Re2+ 47. Kf3 $1 Rd2 48. Ke3 Rg2 (48... Rc2 $16 {was worth a try.}) 49. Rxc5 $18 Rxg3+ 50. Ke4 {d4 is the strong threat.} Rh3 51. Rc7+ $2 (51. d4 $18) 51... Ke8 $2 {[%mdl 8192]} (51... Ke6 $11) 52. d4 Rxh4 53. Rc8+ $1 Kd7 54. Rg8 ({White has to play} 54. Rf8 $1 $18 {[%cal Rf8f7]}) 54... Rh1 $11 55. d5 {[%cal Bd4d5,Bd5d6][%mdl 32] aiming for d6.} Re1+ 56. Kf3 {Hoping for d6.} Rf1+ ({Black should play} 56... Rb1 $14) 57. Ke3 $1 $16 {Strongly threatening Rf8.} Re1+ 58. Kf2 $1 Rd1 {[#]} (58... Re4 $16 {is a better defense.}) 59. d6 $1 $18 h4 {[#]} 60. Rh8 $2 ({White must play} 60. Ke2 $1 $18 {[%cal Re2d1]} Rd5 61. Kf3) 60... g5 $11 {The position is equal.} 61. Rh7 gxf4 62. Rxf7+ Ke6 63. Rxf4 Kxe5 64. Rxh4 Rxd6 65. Rh3 Rf6+ 66. Rf3 Rxf3+ 67. Kxf3 {Weighted Error Value: White=0.17 (very precise) /Black=0.29 (precise)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.6"]
[White "Kosteniuk, Alexandra"]
[Black "Hansen, Eric"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2516"]
[BlackElo "2606"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,69,0,0,13,11,6,4,0,18,12,29,29,29,30,39,35,61,49,91,90,78,22,93,82,77,94,64,0,159,164,164,85,89,78,98,15,238,238,303,306,296,294,331,304,664,283,287,250,259,120,164,175,165,173,29998,29999]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nbd2 d5 8. exd5 Nxd5 9. O-O {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} O-O 10. a3 Bxd2 11. Bxd2 {The position is equal.} Bg4 {[%cal Oc6d4]} 12. h3 Bxf3 13. Qxf3 Nb6 14. Bd3 Nxd4 15. Qxb7 $40 {[%mdl 128] [#] White mounts an attack.} Rb8 $146 ({Predecessor:} 15... c6 16. Rad1 Nf3+ 17. gxf3 Qxd3 18. Qxc6 Qf5 19. Qe4 Qxh3 20. Qg4 Qxg4+ 21. fxg4 f5 {0-1 (65) Rosen,E (2382)-Santarius,E (2289) Saint Louis 2016}) 16. Qe4 {[%csl Gd3][%cal Re4h7] White is more active.} (16. Qxa7 Ne6 17. Bb4 (17. Qa6 $2 Nc5 $17) 17... Qxd3 $17) 16... f5 {[#]} (16... g6 $14) 17. Qe3 $1 $16 c5 {Hoping for ...Re8.} 18. Rad1 (18. Rfe1 $16) 18... Nd5 (18... Re8 $11 19. Qg5 Na4 20. Bc4+ Kh8 21. Qxd8 Rexd8) 19. Bc4 {Qe5 is the strong threat.} Kh8 20. Qe5 Nb6 {[#]} 21. Ba2 {A strong pair of Bishops.} (21. Bh6 $1 $14 Qf6 (21... Rb7 22. Qxc5) 22. Qxf6 Rxf6 23. Bf4) 21... Re8 $2 ({Black should play} 21... Nd7 $11 22. Qd5 Rxb2) 22. Qxc5 Na4 23. Qd5 (23. Qxa7 $18 Ra8 24. Qb7) 23... Nxb2 {Threatens to win with ...Qxd5.} 24. Rb1 Qf6 25. Rfe1 (25. Kh1 $16 {Black must now prevent Bc3.} Ne2 26. Ba5) 25... Red8 $2 (25... Ne2+ $1 $11 {and Black is okay.} 26. Kf1 Qa6) 26. Qa5 $18 {And now Bc3 would win.} Nd3 27. Rxb8 ({And not} 27. Qxa7 Ra8 28. Qe7 Nxe1 29. Qxf6 gxf6 $17) 27... Rxb8 28. Qxa7 Rf8 29. Re3 Nc6 $2 (29... Nf4 30. Qb7 Qd8) 30. Qb7 (30. Qc7 $142) 30... Nc5 31. Qb6 Ne4 32. Rd3 (32. Be1 $18 {is more deadly.}) 32... Rb8 (32... Qa1+ $16 {was called for.} 33. Bb1 (33. Qb1 Qxb1+ 34. Bxb1 Rb8 $16) 33... h6) 33. Qc7 Qa1+ 34. Kh2 {[%cal Oc7b8] White threatens Qxb8+! and mate.} Nxf2 $2 {[#]} (34... Qxa2 $18 35. Bf4 Rg8 36. Qxc6 Qxf2) 35. Qxb8+ $1 {[%mdl 512] Weighted Error Value: White=0.45/Black=0.65} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.7"]
[White "Keymer, Vincent"]
[Black "Le, Quang Liem"]
[Result "0-1"]
[ECO "D77"]
[WhiteElo "2664"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,136,10,14,0,0,3,11,13,17,36,39,17,27,21,49,37,32,25,61,60,71,81,102,0,71,-39,0,0,0,-30,-7,-102,-98,-105,-19,-44,-24,-39,0,-26,-32,-25,-20,-19,-28,-28,-28,-18,-15,-53,-56,-58,-59,-64,-60,-58,-17,-50,0,-20,-8,-8,-8,-8,-8,-8,0,-12,0,0,0,-12,0,-8,-8,-97,-60,-60,-60,-60,-60,-60,-60,-60,-60,-3793,-3658,-3479,-2927,-3632,-3062,-2554,-1236,-750,-269,-29967,-29968,-29964,-2407,-1702,-462,-29963,-29964,-29953,-29957,-29962,-29957,-29971,-29971,-29970,-29968,-29980,-29981,-29981,-29974,-29975,-29961,-29975,-29974,-29971,-29972,-29984,-29985]} 1. c4 Nf6 2. Nf3 e6 3. b3 b6 4. g3 Bb7 5. Bg2 g6 6. Bb2 Bg7 7. O-O O-O 8. d4 d5 $1 {8...d5 scores better than 8...d6.} (8... d6 9. Nc3 Nbd7 10. Qd3 e5 11. e4 exd4 12. Nxd4 Nc5 13. Qc2 Re8 14. Rfe1 a5 15. Rad1 h5 16. h3 Re7 17. a3 Qe8 18. f3 d5 19. cxd5 Nxd5 20. Nxd5 Bxd5 {½-½ (63) Keymer,V (2558)-Le,Q (2709) Chess.com INT 2020}) 9. cxd5 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6.} exd5 10. Nc3 Re8 11. Rc1 {The position is equal.} a6 12. Ne5 Nbd7 13. Nd3 Ne4 {[#]} 14. e3 $146 ({Predecessor:} 14. Nxe4 dxe4 15. Nf4 Nf6 16. e3 Nd5 17. Nxd5 Bxd5 18. Qc2 c6 19. Rfd1 Qd7 20. Bf1 {0-1 (43) Mitrabha,G (2445)-Rathanvel,V (2445) Lichess.org INT 2020}) 14... Ndf6 15. Ne2 a5 16. Re1 Ba6 17. Ne5 c5 18. f3 Nd6 19. Nf4 ({Better is} 19. dxc5 $16 bxc5 20. Rxc5) 19... Rc8 {To avoid Nc6} (19... c4 $1 $11 {keeps the balance.}) 20. g4 ({White should play} 20. dxc5 $16 bxc5 21. Bh3 (21. Nxd5 $2 Nxd5 22. Qxd5 Bb7 $19)) 20... g5 (20... Bb7 $5 {[%cal Rf6d7]}) 21. Nh3 h6 22. f4 Nde4 23. Nf2 {[#]} (23. Qf3 $11) 23... Nxf2 $1 $17 24. Kxf2 c4 (24... cxd4 $17 25. exd4 gxf4) 25. a4 cxb3 (25... gxf4 {looks sharper.} 26. exf4 cxb3 27. Qxb3 Nxg4+ 28. Kg1 Qh4) 26. Qxb3 Rxc1 27. Bxc1 gxf4 28. exf4 {[#]} Nxg4+ 29. Kg1 $1 Qh4 {[%csl Gg4,LRe1,LRh2][%cal Rh4h2]} 30. Qg3 Qxg3 {Really sharp!} 31. hxg3 Bc4 {And now ...f6 would win.} 32. Bd2 Nxe5 33. fxe5 f6 {[%cal Rf6e5]} 34. Bf4 fxe5 35. dxe5 Kf7 (35... Bf8 $15 {should be considered.} 36. Kh2 Bc5) 36. Bh3 Ke7 (36... Bf8 $15) 37. Rb1 Kd8 38. Rxb6 Bxe5 {aiming for ...Bd4+.} 39. Rxh6 Bxf4 40. gxf4 $11 {[%cal Bg3f4,Bf4f5][%mdl 4128] Endgame KRB-KRB} Kc7 41. Be6 Rf8 42. f5 Kd6 43. Kf2 Ke5 44. Rh1 Bd3 45. Re1+ (45. Rh7 $1 $11 {remains equal.}) 45... Kd6 (45... Be4 {with more complications.} 46. Rg1 Rb8 47. Rg7 d4 48. Rd7 Rb2+) 46. Ke3 Bxf5 47. Bxf5 Rxf5 $15 {KR-KR} 48. Rb1 Re5+ 49. Kd3 Re4 50. Ra1 {[%mdl 8192] White does not recover from this.} (50. Rb8 $15) 50... Kc5 $19 51. Ra2 Rd4+ 52. Kc3 Rh4 {( -> ...Rh3+)} 53. Ra1 Rh3+ (53... d4+ $142 54. Kd3 Rh3+ 55. Kd2 Kc4 56. Rc1+ Rc3) 54. Kd2 Kd4 $2 (54... Kc4 55. Rc1+ Kd4) 55. Ke2 $2 (55. Rg1 $19) 55... Rh2+ 56. Kf3 Rd2 (56... Kc3 $142 57. Kg3 Rc2 58. Kf4 d4 59. Ra3+ Kc4 60. Rh3 d3 61. Rh7 Rf2+ 62. Ke3 Re2+ 63. Kf3 Re1 64. Rd7 Kc3 65. Rc7+ Kb4 66. Rd7 Kc3 67. Rc7+ Kb2 68. Rd7 Kc2 69. Rc7+ Kd1 70. Rc6 d2 71. Rc8 Rf1+ 72. Kg2 Rf4 73. Kg3 Rxa4 74. Kf3 Ra1 75. Kf2 a4 76. Rc6 a3 77. Ke3 Rc1 78. Rf6 Ke1 79. Rh6 Rc3+ 80. Ke4 d1=Q 81. Rh1+ Kd2 82. Rxd1+ Kxd1 83. Kd4 Rc8 84. Ke3 a2 85. Ke4 a1=Q 86. Kf5 Rc5+ 87. Ke6 Qe5+ 88. Kf7 Rc7+ 89. Kg6 Rg7+ 90. Kh6 Qg5#) 57. Rh1 Ra2 (57... Rc2 $142 58. Rd1+ Kc5) 58. Rh4+ (58. Rd1+ $19 Ke5 59. Re1+ Kd6 60. Re8) 58... Kd3 {Black mates.} 59. Rh5 Kc4 60. Rh4+ d4 {[%cal Bd5d4,Bd4d3,Bd3d2][%mdl 32]} 61. Ke4 Re2+ 62. Kf3 Re8 63. Rh5 d3 64. Rh7 d2 65. Rc7+ Kb3 66. Rd7 Kc2 67. Rc7+ Kd1 68. Rd7 Ke1 {Weighted Error Value: White=0.64/Black=0.55} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "14.8"]
[White "Niemann, Hans Moke"]
[Black "Praggnanandhaa R"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2642"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,7,14,0,0,0,0,-19,0,-13,0,0,0,-16,-29,-42,-43,-31,-42,-40,-33,-51,-45,-66,-97,-181,26,15,70,75,60,18,9,0,0,0,0,0,7,8,14,0,216,216,202,208,191,183,187,199,203,192,217,202,212,158,152,107,153,110,113,91,89,94,79,33,207,193,185,193,432,438,12845,12846,12847,330,12848,12848]} 1. c4 {Navara,David} e5 {[%cal Be7e5,Be5e4][%mdl 32]} 2. g3 c6 3. d4 e4 4. a3 d5 5. Nc3 Be7 6. Bg2 {A20: English Opening: 1...e5.} Nf6 7. f3 exf3 8. Nxf3 {The position is equal.} O-O 9. O-O h6 {[#]} 10. h3 $5 $146 {[%mdl 8] An interesting novelty.} ({Predecessor:} 10. cxd5 cxd5 11. Nh4 Nc6 12. Nf5 Be6 13. g4 Re8 14. Nxe7+ Nxe7 15. g5 hxg5 16. Bxg5 {½-½ (42) Navara,D (2717)-Vitiugov,N (2731) Prague 2020 CBM 195 [Navara,David]}) 10... Be6 11. g4 Ne4 $1 {To avoid g5} 12. Qc2 Nxc3 13. bxc3 Nd7 14. Rb1 Qc7 15. g5 Qg3 (15... dxc4 16. gxh6 g6 17. Ng5 Bxg5 18. Bxg5 $14) 16. gxh6 Bxh3 {[%csl Gh3][%cal Rg3g2]} 17. Rf2 (17. e3 $17) 17... g6 $2 (17... dxc4 18. Rxb7 Rfb8 19. Rxb8+ Rxb8 20. h7+ Kh8 21. Bf4 $1 Qxf4 22. Ne5 $14) (17... Nf6 $1 $19 {[%cal Rf6e4] Strongly threatening ...Ne4.} 18. Bf4 (18. hxg7 $2 Rfe8 $19) 18... Qxf4 19. hxg7 Rfe8 20. Bxh3 Qg3+ 21. Rg2 Qxh3) 18. Qd2 $11 {[%cal Oh6h7]} Bf5 (18... b5 $11) 19. Rxb7 $14 Rab8 20. Rxb8 (20. Rxa7 $14 Rb1 21. c5) 20... Rxb8 $11 21. Qf4 {Chess con chili.} Bd6 22. Qxg3 Bxg3 23. Rf1 {Hoping for Ng5.} Re8 24. cxd5 cxd5 25. Ng5 Nb6 (25... Nf6 $11) 26. Bh3 $1 $18 Bxh3 27. Rxf7 {Rg7+ would kill now.} Be6 28. Rg7+ Kh8 29. Rxg6 Bg8 30. h7 $1 Be1 31. Bf4 {White wants to mate with Be5+.} (31. hxg8=Q+ Rxg8 32. Rh6+ Kg7) 31... Nc4 {[%cal Og8f7] Prevents Be5+.} 32. hxg8=R+ ({But not} 32. hxg8=B Rxg8 33. Rh6+ Kg7) 32... Rxg8 33. Rh6+ Kg7 34. Ra6 (34. Rc6 $142 $1) 34... Bxc3 $16 35. e3 ({Of course not} 35. Rxa7+ $6 Kf6 36. Rf7+ Kg6 $11) 35... Bd2 36. Kf2 Re8 {[%cal Rd2e3]} 37. Rxa7+ (37. Re6 $1 $16 {[%cal Re6e8]} Rxe6 38. Nxe6+ Kf6 39. Nc7) 37... Kf6 $2 {Loses the game.} ({Black should play} 37... Kg8 $1 $14) 38. Ra6+ $1 $18 Kf5 {[%cal Rd2e3] [#]} 39. Nf7 $1 Ke4 {[#]} (39... Bxe3+ 40. Bxe3 Rf8 41. Nh6+ (41. Ra7 Ke6 $11) 41... Ke4+ 42. Ke2 Nxe3) 40. Ke2 $1 {aiming for Rf6.} Bc1 (40... Rg8 $142 41. Re6+ Kf5) 41. Rf6 {[%cal Rf7g5]} Rg8 42. Ng5+ Rxg5 43. Bxg5 {Weighted Error Value: White=0.10 (very precise) /Black=0.50} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.1"]
[White "Praggnanandhaa R"]
[Black "Artemiev, Vladislav"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2612"]
[BlackElo "2700"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,63,33,44,31,25,20,42,39,40,0,7,2,0,4,0,0,0,0,1,4,9,2,10,16,21,7,12,-8,18,13,8,0,10,0,6,0,18,3,113,113,111,77,80,33,87,99,116,118,1037,1014,969,898]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 h6 8. a5 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} a6 9. Nc3 Re8 10. h3 {White is slightly better.} Bf8 11. d4 {11.Nh2 is the modern continuation.} (11. Bd2 {keeps more tension.} Be6 12. Bxe6 fxe6 13. Ne2 d5 14. Ng3) 11... exd4 12. Nxd4 {[#]} d5 $146 ({Predecessor:} 12... Nxd4 13. Qxd4 Be6 14. Bf4 c6 15. Bf1 d5 16. exd5 Nxd5 17. Nxd5 Bxd5 18. Rxe8 Qxe8 {½-½ (41) Navara,D (2676)-Ivanchuk,V (2678) Chess.com INT 2021}) 13. Nxd5 Nxd5 14. Nxc6 (14. Bxd5 $2 Nxd4 15. Qxd4 c6 $17) 14... bxc6 15. exd5 Rxe1+ 16. Qxe1 cxd5 17. Bf1 c5 18. Bf4 Bb7 19. Qc3 Bc6 20. Rd1 {[%cal Ba1d1,Bd1d5,Bd5d7,Bd7e7,Be7c7,Bc7b7][%mdl 32]} Bb5 21. Bxb5 axb5 22. Qe5 Qxa5 23. Rxd5 Qa2 24. Rd7 g6 25. Qe4 Bg7 {[#]} (25... Ra4 $11 26. Qe5 Ra8) 26. b3 $1 $16 Rf8 27. Bd6 {[%csl LRc5,LRf8]} Qa8 28. Qf4 {White is much more active.} (28. Qxa8 $16 {Threatening mate with Qd5.} Rxa8 29. Bxc5) 28... Qe8 (28... Bd4 $1 $14) 29. Re7 $36 {[%mdl 2048] White is on the roll.} ({Wrong is} 29. Bxf8 $2 Qe1+ 30. Kh2 Be5 31. Bxh6 Bxf4+ 32. Bxf4 Qxf2 33. Rd8+ Kg7 $19) 29... Qa8 30. Rc7 {Threatens to win with g3.} Qd8 $2 {[%mdl 8192] [#]} (30... Qa1+ $16 31. Kh2 Qd4) 31. Bxf8 $18 Qxf8 32. Rb7 {Weighted Error Value: White=0.09 (flawless) /Black=0.17 (very precise)} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.2"]
[White "Le, Quang Liem"]
[Black "Niemann, Hans Moke"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2709"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "178"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,178,0,-4,7,0,0,0,0,-22,0,-5,10,6,25,11,43,23,21,4,16,12,12,12,5,9,0,8,12,6,0,5,7,4,21,32,46,54,61,41,74,47,88,58,90,100,95,57,62,0,16,17,17,17,24,21,17,16,16,16,86,86,87,87,87,87,87,87,87,87,87,87,112,105,105,87,87,81,112,112,112,112,113,112,112,112,112,87,105,87,112,87,87,87,87,87,87,87,87,87,87,87,87,87,87,98,112,0,112,32,32,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,0,32,0,75,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. a3 Bxc3+ 7. bxc3 Ne4 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. e3 {8.Bf4 is becoming the main line.} Nxc3 9. Qc2 Ne4 10. Bd3 Nd6 {[#]} 11. Nd2 $146 ({Predecessor:} 11. c5 Nf5 12. O-O h6 13. Rb1 O-O 14. Qc3 Nfe7 15. Bd2 b6 16. Rfc1 Na5 17. Qc2 {½-½ (33) Topalov,V (2760)-Anand,V (2779) Saint Louis 2016}) 11... dxc4 12. Nxc4 Nxc4 13. Bxc4 e5 14. d5 Ne7 15. O-O O-O 16. a4 c6 17. dxc6 Nxc6 18. Ba3 {[#] aiming for Rfd1.} Re8 19. Rfd1 Qf6 20. Qb2 Be6 21. Bxe6 Qxe6 22. Qxb7 Rab8 23. Qa6 {[#] Hoping for Rd6.} Qc8 24. Qe2 Rd8 25. h3 h6 26. Rac1 Qb7 (26... Qe6 $14) 27. Bd6 Nd4 28. exd4 Rxd6 29. Qxe5 Rbd8 30. Rc3 (30. Qa5 $14) 30... Rd5 31. Qf4 {Threatening Rc7.} Qb4 {[%csl LRa4,LRc3,LRd4]} 32. Rc7 $40 {[%csl LRa7,LRf7][%mdl 128] White is up to no good.} R5d7 33. Rdc1 {[%cal Bd1c1,Bc1c7,Bc7a7][%mdl 32] And now Rxd7 would win.} Qxa4 34. Rxd7 Qxd7 $11 {[%mdl 4096] Endgame KQR-KQR} 35. Rc7 Qxd4 (35... Qe6 $11) 36. Qxf7+ $16 Kh8 37. Rxa7 Qd1+ 38. Kh2 {[%csl Ga7][%cal Rf7g7]} Qd6+ 39. g3 {[%csl Ga7][%cal Rf7g7]} Qf8 40. Qa2 {White is more active.} Qf6 41. Rf7 Qd6 42. Qb2 {[%csl Gf7][%cal Rb2g7]} Qg6 43. Rf4 Qe6 44. Qb7 Qe1 45. Qf3 Qe7 46. h4 Qe6 47. h5 Kg8 48. Rf5 Re8 49. Qg4 Kh7 50. Kh3 Qc6 {[%cal Rc6h1]} 51. f3 (51. Qd1 {with more complications.} Qb6 52. Qd5 Rd8 53. Qe4 Rd4 54. Qf3) 51... Qe6 52. Ra5 Qxg4+ 53. Kxg4 {KR-KR} Rb8 54. f4 Rb3 55. Ra8 Rc3 56. Kh4 Rc4 57. Rf8 Rb4 58. Re8 Ra4 59. Rf8 Rb4 $1 60. g4 (60. Kg4 $16) 60... Ra4 $14 61. Kg3 Ra3+ 62. Kf2 Ra2+ 63. Kg3 Ra3+ 64. Kh4 Ra4 65. f5 Ra6 66. Rc8 Ra3 67. Rc4 Rb3 68. Rc7 Kg8 69. Rc6 Kh7 70. Rc7 Kg8 71. Rc4 (71. Re7 $14 {is superior.}) 71... Kh7 $16 72. g5 (72. Rc6 $16) 72... hxg5+ $11 {The position is equal.} 73. Kxg5 Rg3+ 74. Rg4 Ra3 75. Rb4 Rg3+ 76. Kf4 Rg1 77. Rb8 Rf1+ 78. Ke5 Re1+ 79. Kd6 Kh6 80. Rg8 Re2 81. Kd5 Re1 82. Kd4 Re7 83. f6 gxf6 84. Rg6+ Kxh5 85. Rxf6 Kg5 86. Rd6 Kf5 87. Rd5+ Ke6 88. Re5+ Kf6 89. Rxe7 Kxe7 {Weighted Error Value: White=0.12 (very precise) /Black=0.09 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.3"]
[White "Hansen, Eric"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2606"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,123,18,19,19,14,11,26,14,16,7,0,7,27,14,6,6,21,11,31,-4,16,0,0,0,20,12,17,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-7,-3,-8,0,-8,-8,-8,-8,-15,-8,-8,-8,-11,0,0,0,-3,0,-4,-4,-4,-4,-4,-4,-4,-4,-4,0,0,0,0,0,-8,-8,-8,-4,-4,-4,-4,0,0,0,0,0,0,0,0,0,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,-4,0,-4,-4,-4,-4,-4,-4,-4,0,-4]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c3 Ngf6 5. Bd3 a6 6. Bc2 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} b5 7. d4 Bb7 8. Nbd2 {White has an edge.} e6 9. O-O Be7 10. Re1 Qc7 11. Nf1 O-O 12. Ng3 Rfc8 13. Bd3 b4 14. cxb4 (14. d5 $5 {[%cal Rd5e6]}) 14... cxb4 {The position is equal.} 15. Bd2 {[#]} a5 $146 ({Predecessor:} 15... d5 16. e5 Ne4 17. Nxe4 dxe4 18. Bxe4 Bxe4 19. Rxe4 Qc2 20. Re2 Qxd1+ 21. Rxd1 Rc2 {0-1 (31) Wojtaszek,R (2698)-Preotu,R (2485) Chess.com INT 2021}) 16. a3 bxa3 17. Rxa3 Qd8 18. Qa1 {[%cal Rd2a5]} d5 19. Rxa5 dxe4 20. Nxe4 Nxe4 21. Bxe4 Bxe4 22. Rxe4 Rxa5 23. Qxa5 Qxa5 24. Bxa5 Rc2 25. Bc3 Nf6 26. Re1 Nd5 27. Rb1 g5 {[%cal Bg7g5,Bg5g4][%mdl 32]} 28. Kf1 g4 29. Ne1 {[#]} Nxc3 $1 30. bxc3 Rxc3 $11 {[%mdl 4096] Endgame KRB-KRN} 31. Rd1 Bd6 32. g3 Kg7 33. Ng2 f5 34. Ne3 Kf6 35. Ke2 h5 36. h3 gxh3 37. Rh1 h4 {[%cal Od6g3]} 38. Rxh3 hxg3 39. Rh6+ Kf7 {[%cal Oc3c2]} 40. fxg3 $1 Bxg3 {[#] White must now prevent ...Bf4.} 41. d5 exd5 42. Nxd5 Rc2+ 43. Kf3 Be5 44. Ra6 Rc5 45. Ra7+ Kg6 46. Nf4+ Kf6 47. Ra6+ Kf7 {And now ...Rc3+ would win.} 48. Ra7+ Kf6 {...Rc3+ is the strong threat.} 49. Ra6+ Kf7 {Strongly threatening ...Rc3+.} 50. Ra7+ Bc7 (50... Ke8 {seems wilder.} 51. Ne6 Rc3+ 52. Ke2 f4 53. Ng7+ Kf8) 51. Nd5 Rxd5 52. Rxc7+ {KR-KR} Kf6 53. Rc8 Rd3+ 54. Kf4 Rd4+ 55. Kf3 Ra4 56. Rf8+ Ke5 57. Re8+ Kf6 58. Rf8+ $1 Kg6 59. Rg8+ Kf7 60. Rb8 Rc4 61. Rb6 Ra4 62. Rc6 {An interesting draw.  Weighted Error Value: White=0.03 (flawless) /Black=0.02 (flawless)} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.4"]
[White "Ding, Liren"]
[Black "Kosteniuk, Alexandra"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2799"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,63,18,0,21,24,29,34,31,14,31,11,19,0,8,4,6,0,8,15,63,62,63,63,66,62,73,62,103,66,84,84,117,106,143,141,155,138,135,129,310,310,320,308,500,500,486,481,1047,1033,29983,29984,29995,29996]} 1. c4 c5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nc7 6. Nf3 Nc6 7. a3 Rb8 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} 8. b4 e6 9. bxc5 Bxc5 {[#] White is slightly better.} 10. Bb2 $146 ({Predecessor:} 10. O-O O-O 11. d3 e5 12. Ne4 Be7 13. Bb2 f5 14. Ned2 Bf6 15. Rc1 Re8 16. Qc2 {1-0 (69) Niemi,M (2253)-Tomazini,Z (2402) Graz 2017}) 10... O-O 11. O-O (11. Ne4 $5 {[%cal Re4c5]} Be7 12. Rc1 $14) 11... b6 12. Rc1 {next Ne4 is good for White.} Bb7 13. Ne4 Be7 14. d3 Nd5 15. Rc2 f5 (15... f6 $11) 16. Ned2 $14 Rc8 17. Qa1 Bf6 18. Rfc1 Bxb2 19. Qxb2 Qf6 (19... Qe7 $14 {feels stronger.}) 20. d4 Na5 21. Ne5 {Strongly threatening Nd7.} Qe7 {Prevents Nd7.} 22. Bxd5 Rxc2 {[#]} 23. Bxe6+ $1 {[%mdl 512]} Qxe6 24. Rxc2 Qd5 {[%csl Gb7][%cal Rd5h1]} 25. f3 f4 $2 {A mistake that costs the game.} (25... Nc6 $16) 26. Rc7 $18 Rd8 27. gxf4 Qd6 $2 (27... Qxd4+ {was worth a try.} 28. Qxd4 Rxd4) 28. Qa2+ Bd5 29. Qc2 Be6 (29... a6 $142 30. Qc3 Kf8) 30. Ne4 {Intending Nf6+ and mate.} Qxd4+ 31. Kg2 Bb3 {[#]} 32. Nf6+ $1 {[%mdl 512] Weighted Error Value: White=0.05 (flawless) /Black=0.59} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.5"]
[White "Duda, Jan-Krzysztof"]
[Black "Nepomniachtchi, Ian"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2760"]
[BlackElo "2773"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,144,16,6,2,9,8,11,8,30,3,31,21,20,-50,12,-35,12,17,9,9,44,51,24,2,18,21,21,8,0,10,4,0,0,0,0,0,0,0,9,0,6,2,52,47,58,54,51,39,39,45,47,57,72,70,278,298,283,289,293,288,272,75,89,78,74,74,133,130,183,177,302,283,369,367,319,189,184,176,191,118,120,118,133,61,68,0,133,121,127,126,115,122,194,184,196,195,216,206,224,210,177,193,182,75,72,55,53,39,55,18,533,533,526,139,259,8,332,29,245,46,46,46,53,0,8,0,59,59,71,71,71,0,8,0,71,0,8]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 d5 6. exd5 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Qxd5 {[%cal Oc5f2] Hoping for ...Bxf2+!} 7. Bc4 Qd6 8. O-O O-O 9. Nbd2 {To avoid e4} Bf5 10. b4 Bb6 11. Qe2 {[#]} (11. Qc2 $1 $11) 11... Rad8 $146 (11... Nd5 $1 $15 12. Nb1 Rae8) ({Predecessor:} 11... a6 12. a4 Rfe8 13. Ng5 Bg6 14. Nde4 Nxe4 15. Nxe4 Qd7 16. h4 h6 17. Bxh6 Bxe4 18. dxe4 gxh6 {1-0 (52) Wang,H (2730)-Piorun,K (2634) St Petersburg 2018}) 12. a4 (12. Ne4 $11 {is superior.} Nxe4 13. dxe4) 12... a6 (12... Bxd3 13. Qxd3 Qxd3 14. Bxd3 Rxd3 15. a5 $16) (12... Nd5 $1 $15 13. Nb1 a6) 13. Ne4 $11 Nxe4 14. dxe4 Bg4 15. h3 (15. a5 {seems wilder.} Ba7 16. h3 Be6 17. b5 axb5 18. Bxb5 Nb8 19. Ng5) 15... Be6 16. Ba3 {a5 is the strong threat.} Bxc4 17. Qxc4 {Threatens to win with a5.} Rfe8 18. a5 Ba7 19. b5 axb5 $1 20. Bxd6 bxc4 21. Bxc7 Rd7 22. Bb6 Bxb6 23. axb6 Rd3 24. Rfc1 f6 25. Ne1 Rd2 (25... Rd6 $11) 26. Nc2 $1 $14 Rc8 27. Ne3 Ne7 28. Ra7 Rd7 29. Ra4 Rd6 30. Rb4 Rc5 31. Ra1 $1 (31. Rxc4 Rxc4 32. Nxc4 Rc6 $11) (31. Nxc4 Rdc6 32. Ne3 Rxc3 33. Rxc3 Rxc3 $11) 31... Nc8 $2 ({Black should try} 31... Kf8 $14) 32. Ra8 $18 (32. Rxc4 Rxc4 33. Nxc4 Rc6 $11) (32. Nxc4 Rdc6 33. Raa4 h5 $14) 32... Kf7 33. Rb8 (33. Nxc4 Rd7 $14) (33. Rxc4 Rxc4 34. Nxc4 Rd1+ 35. Kh2 Nd6 $11) 33... Nxb6 34. Rxb7+ Nd7 35. Rxc4 $2 (35. Nxc4 $18 Rd1+ 36. Kh2) 35... Rxc4 $16 36. Nxc4 $18 {[%mdl 4096] Endgame KRN-KRN} Rd1+ 37. Kh2 Ke6 (37... Kg8 $142) 38. Rc7 $16 Rc1 (38... g6 $16 {was worth a try.} 39. Rc6+ Ke7) 39. Rc6+ $18 Kf7 (39... Ke7 $142) 40. Nd6+ $1 Ke7 41. Nf5+ Kf7 42. f3 (42. Rc7 $142 Ke8 43. Nxg7+ Ke7 44. Rc8) 42... Rd1 43. Ne3 Rd2 44. Nd5 (44. Rc7 $18) 44... f5 45. Rc7 Ke8 46. Rc8+ (46. c4 $1 $16) 46... Kf7 $14 47. Rc7 (47. c4 $14) 47... Ke8 $16 48. c4 fxe4 49. fxe4 Rc2 50. Kg3 h6 (50... Kd8 $16) 51. Kf3 $18 Kd8 52. Rc6 $1 Ke8 53. h4 h5 54. g4 hxg4+ 55. Kxg4 Kf7 56. Kf3 (56. h5 $18) 56... Rc1 $16 57. Ne3 Rh1 58. Rc7 Ke6 59. c5 Rxh4 $2 {[%mdl 8192]} (59... Rh3+ $11 60. Ke2 Rxh4) 60. Nf5 $1 $18 Rh3+ 61. Ke2 $2 (61. Kg4 $18 {is the precise move to win.} Rh7 62. Kg5) 61... Nf8 (61... Rh2+ $16 62. Kd3 Rh1) 62. c6 $2 (62. Rxg7 Kf6 $11) (62. Nxg7+ $18 Kf6 63. Ne8+ Ke6 64. Ra7) 62... Kf6 $2 {[%mdl 8192]} (62... Rc3 $11 {and Black stays safe.}) 63. Nxg7 $2 (63. Rxg7 Rc3 $11) (63. Rb7 $18 {And now c7 would win.} Rh2+ 64. Kd3) 63... Rc3 $2 (63... Ne6 $1 $11 {and Black is okay.} 64. Nxe6 Kxe6) 64. Kd2 $2 (64. Ne8+ $18 Ke6 65. Rc8) 64... Rc5 $14 65. Ne8+ Ke6 66. Ng7+ (66. Rc8 $1 $14) 66... Kf6 $1 $11 67. Ne8+ ({White should play} 67. Nf5 $11) 67... Ke6 $14 68. Rc8 $1 Ke7 69. Nc7 $1 {White is more active.} Kd6 {[%cal Oc5c6] [#]} 70. Ne8+ (70. Rxf8 Kxc7 71. Rh8 Kxc6 $11) (70. Na6 $1 $16 {[%cal Ra6c5]} Ra5 71. Ra8 (71. Rxf8 Rxa6 72. Rd8+ Kxc6 $11) (71. Rd8+ Kxc6 72. Nb4+ Kb5 $16) 71... Kxc6 72. Nb4+ (72. Rxf8 Rxa6 73. Rc8+ Kd6 $11) 72... Kb5 73. Rb8+ (73. Rxf8 Kxb4 74. Rd8 Kc4 $11) (73. Rxa5+ Kxa5 74. Nd5 Ne6 $11) 73... Kc4 74. Nd3 (74. Rxf8 Kxb4 75. Rd8 Kc4 $11) 74... Ra2+ 75. Ke3) 70... Ke7 $11 71. Nc7 (71. Ng7 $11 Kf6 72. Nh5+ (72. Rxf8+ Kxg7 73. Rf5 Kg6 $11) 72... Ke7 73. Ng3) 71... Kd6 $16 {[%cal Oc5c6] [#]} 72. Ne8+ ({Of course not} 72. Rxf8 Kxc7 73. Rg8 Kxc6 $11) (72. Na6 $1 $16 {[%cal Ra6c5]} Ra5 73. Rd8+ (73. Rxf8 Rxa6 74. Rd8+ Kxc6 $11) 73... Kxc6 74. Nb4+ (74. Rxf8 Rxa6 75. Rf6+ Kb5 $11) (74. Nb8+ Kc7 $11) 74... Kb5 75. Rb8+ (75. Rxf8 Kxb4 76. Rd8 Ra3 $11) 75... Kc4 76. Nd3 (76. Rxf8 Kxb4 77. Rd8 Kc4 $11) 76... Ra2+ 77. Ke3) 72... Ke7 {White really could win this.  Weighted Error Value: White=0.21 (precise) /Black=0.35} 1/2-1/2

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.6"]
[White "Aronian, Levon"]
[Black "Esipenko, Andrey"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2772"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,40,15,9,12,14,23,12,29,21,21,45,30,33,53,35,40,0,5,12,10,0,0,0,0,-2335,-1951]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O O-O 6. Re1 h6 7. c3 d6 8. Nbd2 Bb6 9. Bb3 Ng4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 10. Re2 Na5 {[#]} 11. Bc2 $146 ({Predecessor:} 11. h3 Nxb3 12. axb3 Nf6 13. Nc4 Bd7 14. b4 Re8 15. b3 Rb8 16. Qc2 Nh5 17. d4 {0-1 (54) Maric,M (2255)-Babayeva,F (2055) Moscow 1994}) 11... f5 {The position is equal.} 12. h3 {d4 is the strong threat.} Nf6 $1 13. d4 fxe4 14. Nxe4 Nxe4 15. Rxe4 Bf5 16. Re1 (16. d5 {is interesting.} Qf6 17. Kh2 Bxe4 18. Bxe4 c5 19. Qe2) 16... Bxc2 17. Qxc2 {next a4 is good for White.} exd4 $1 {[%cal Be5d4,Bd4d3][%mdl 32] [#]} 18. Bxh6 $1 Rxf3 19. gxf3 {[%cal Oe1e6] Black must now prevent Re6!} Qh4 $1 (19... d3 $2 20. Qxd3 Qh4 21. Be3 $18) 20. Bc1 {[%mdl 8192]} ({Not} 20. b4 $2 d3 21. Qxd3 Bxf2+ 22. Kf1 Bxe1 23. Rxe1 Qxh3+ 24. Ke2 Re8+ 25. Kd1 Rxe1+ 26. Kxe1 Qxh6 $17) (20. Bd2 $11) 20... d3 $1 {Weighted Error Value: White=0.83/Black=0.01 (flawless)} 0-1

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.7"]
[White "Mamedyarov, Shakhriyar"]
[Black "Abdusattorov, Nodirbek"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "2767"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,115,29,32,40,25,53,41,50,37,49,14,86,75,81,82,139,83,74,87,87,64,82,69,80,61,88,67,129,132,115,115,119,115,132,141,231,204,203,183,231,222,222,208,289,270,258,248,233,139,133,139,150,146,133,133,149,126,178,177,484,479,588,661,660,656,648,639,701,690,652,329,341,341,303,278,280,275,278,275,549,535,549,520,547,553,527,516,558,508,705,695,29972,29973,29997,29998,29998,8816,1354,1110]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Nc5 10. f3 {[%cal Bf2f3,Bf3f4][%mdl 32]} Nfd7 {[%cal Bf6d7,Bd7e5,Be5g4][%mdl 32] E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4.} 11. Be3 Ne5 12. b3 c6 {White is slightly better.} 13. Qc2 a5 {[%cal Oa5a4]} 14. Rad1 {[%cal Od4f5] [#] Nf5! is the strong threat.} Qe7 $146 (14... Qb6 $1 $11 {remains equal.}) ({Predecessor:} 14... a4 15. Nxc6 Nxc6 16. Bxc5 Qa5 17. b4 Nxb4 18. Bxb4 Qxb4 19. Nb5 Be6 20. Nxd6 Rfd8 {0-1 (46) Timmer,R-Sicherl,P Dortmund 1988}) 15. f4 $16 Ng4 16. Bc1 a4 {[#]} (16... Nh6 $142) 17. h3 ({Of course not} 17. Nxa4 $6 Nxa4 18. bxa4 Qc7 $11) (17. b4 $142 $1 {[%cal Rb4c5]} Ne6 18. Nde2) 17... axb3 18. axb3 {[%cal Ba2b3,Bb3b4,Bb4b5][%mdl 32]} Nf6 19. Kh2 Re8 {[%cal Rf6e4]} 20. Rfe1 Qc7 21. b4 Ne6 {White must now prevent ...Nxd4.} 22. Nf3 Qb6 {[#]} ({Black should play} 22... Nh5 $14) 23. b5 $1 ({Don't play} 23. Rxd6 $6 Qxb4 24. e5 Nd7 $11) 23... Qc5 24. e5 dxe5 25. Nxe5 {[%cal Rb5c6]} cxb5 26. Nxb5 Ra6 (26... Rd8 $16 {might work better.} 27. Be3 Qe7) 27. Be3 $18 Qb4 28. Rb1 Qa5 (28... Qf8 $142 29. Na7 Re7) 29. c5 Bf8 30. Nc4 Qa2 31. Rb2 Qa4 32. Qxa4 Rxa4 33. Ncd6 (33. Nb6 $18 Ra5 34. Bd2) 33... Rd8 $16 34. Nxc8 {White is much more active.} Rxc8 35. Bxb7 {This bishop pair is nice.} Rxc5 36. Bxc5 Nxc5 37. Nc3 Rc4 (37... Ra3 $16 {keeps fighting.}) 38. Nd5 $18 Bg7 (38... Nh5 {is more resistant.}) 39. Ne7+ Kf8 40. Bd5 Re4 41. Bxe4 Nfxe4 42. Rc2 Bd4 43. Nd5 Bf2 44. Rxe4 Nxe4 {[%mdl 4096] Endgame KRN-KBN} 45. Kg2 Ba7 46. Rc7 Bc5 47. Kf3 Nd2+ 48. Ke2 Ne4 (48... Nb3 {was worth a try.} 49. Kd3 Bf2) 49. Kd3 Nf2+ 50. Kc4 Ba3 51. Ra7 Bd6 52. Ra6 Ne4 53. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} Bc5 54. g5 {Threatening mate with Nf6.} Bg1 55. Nf6 Nc5 56. Ra8+ Ke7 57. Ra1 (57. Kd5 $142 h5 58. Re8#) 57... Bf2 58. Rf1 {Weighted Error Value: White=0.12 (very precise) /Black=0.42} 1-0

[Event "Airthings Masters MCCT Prel 2022"]
[Site "Online"]
[Date "2022.02.13"]
[Round "15.8"]
[White "Giri, Anish"]
[Black "Carlsen, Magnus"]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "2772"]
[BlackElo "2865"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2022.02.18"]
[EventType "tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,91,30,37,42,35,21,30,23,18,20,20,8,0,8,6,0,2,0,0,0,0,-12,0,0,9,15,54,13,9,0,0,-13,-4,-12,-14,-24,-16,-29,0,0,0,0,-6,-21,-21,-29,-29,-29,-29,-29,-29,-29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,31,27,39,26,50,0,28,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 $1 {[%mdl 4] outshines the older 8.c3.} Rb8 9. axb5 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} axb5 10. h3 d6 11. d3 {White has an edge.} Bd7 12. Nc3 {[%cal Bb1c3,Bc3e2,Be2g3,Bg3f1,Bf1d2,Bd2f3][%mdl 32] [#]} Nb4 $146 ({Predecessor:} 12... Nd4 13. Nxd4 exd4 14. Ne2 c5 15. c3 dxc3 16. Nxc3 Qc8 17. Nd5 Nxd5 18. Bxd5 Bf6 {1-0 (75) Postler,R (2280)-Wiemer,J (1985) Eckernfoerde 2010}) 13. Ne2 c5 $1 {[%cal Oc5c4]} 14. Ng3 Qc7 15. Bd2 Nc6 $1 16. Bg5 h6 17. Bxf6 Bxf6 18. Nf1 Nd4 19. Nxd4 exd4 20. Bd5 c4 21. b3 (21. Ng3 $14 {is superior.}) 21... Be6 22. Bxe6 fxe6 23. Nd2 {[%cal Rb3c4]} c3 24. Nf3 Ra8 25. Qe2 e5 26. g3 Ra7 27. h4 Rfa8 28. Rxa7 Rxa7 29. Rd1 Ra2 30. Ne1 Qd7 31. Kg2 Kf7 {[%cal Bg8f7,Bf7e7,Be7d8,Bd8c7,Bc7b7][%mdl 32]} 32. Rb1 Ke7 33. Qd1 Qa7 34. Qg4 Kd8 35. Qe6 Qd7 36. Qg8+ Kc7 37. b4 Ra4 38. Nf3 Kb7 39. Qd5+ Qc6 {[#] White must now prevent ...Qxd5.} 40. Qf7+ Qc7 41. Qe6 Ra6 42. Nh2 Qc8 $1 43. Qf7+ Qc7 44. Qe6 Qc8 $1 45. Qf7+ Qc7 46. Qe6 {Weighted Error Value: White=0.06 (flawless) /Black=0.04 (flawless)} 1/2-1/2

