[Event "44th Chess Olympiad Open 2022"] [White "Zhemba,Jemusse"] [Black "Sasikiran,Krishnan"] [Site "Chennai"] [Round "1.1"] [Annotator "TA"] [Result "0-1"] [Date "2022.07.29"] [WhiteElo "2162"] [BlackElo "2638"] [PlyCount "78"] [TimeControl "60"] {[%evp 16,78,49,8,7,-73,-49,-121,-104,-176,-161,-167,-175,-150,-146,-171,-168,-167,-149,-147,-148,-157,-58,-69,-75,-70,-12,-147,-147,-166,-175,-166,-141,-284,-164,-331,-319,-378,-377,-366,-363,-355,-348,-1281,-1262,-1185,-1158,-1308,-286,-273,-227,-229,-228,-221,-216,-221,-223,-221,-211,-306,-314,-292,-287,-396,-396]} 1. e4 {[%emt 0:0:13]} c5 {[%emt 0:0:13]} 2. Nf3 {[%emt 0:0:0][%cal Yg1f3,Yf3d4,Yd4b3]} d6 {[%emt 0:0:23]} 3. d4 {[%emt 0:0:21] } cxd4 {[%emt 0:0:17]} 4. Nxd4 {[%emt 0:0:8]} Nf6 {[%emt 0:0:13]} 5. Nc3 {[%emt 0:2:24] } Nc6 {[%emt 0:0:19]} 6. Bg5 {[%emt 0:1:58]} e6 {[%emt 0:0:19] } 7. Qd2 {[%emt 0:1:20]} a6 {[%emt 0:0:55][%cal Ya7a6,Ya6a5]} 8. O-O-O {[%emt 0:1:6]} Be7 {[%emt 0:1:12]} 9. Nb3 {[%emt 0:1:31]} b5 {[%emt 0:14:44] [#] B66: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 h6.} 10. Qe1 $146 {[%emt 0:5:51]} (10. Kb1 $11 {keeps the balance.} )({Predecessor:} 10. Bxf6 gxf6 11. f4 b4 12. Ne2 Qb6 13. Kb1 Bb7 14. f5 e5 15. Ng3 a5 16. Bc4 a4 17. Nc1 {0-1 (44) Yu,Y (2585)-Wang,H (2722) Danzhou 2010} )b4 {[%emt 0:6:23] } 11. Nb1 {[%emt 0:10:44]} ({Better is} 11. Na4 $15 )O-O $17 {[%emt 0:0:0] Black is better.} 12. f3 {[%emt 0:4:40]} (12. a4 $17 )a5 {[%emt 0:0:0]} 13. Nd4 {[%emt 0:6:12]} Nxd4 {[%emt 0:7:21]} 14. Rxd4 {[%emt 0:0:48] } e5 {[%emt 0:0:48]} 15. Rd2 {[%emt 0:1:34]} Qc7 {[%emt 0:6:55]} 16. c4 {[%emt 0:0:24] } Nxe4 {[%emt 0:10:43]} 17. Qxe4 {[%emt 0:6:56] [#]} Bxg5 {[%emt 0:0:15] } 18. Qxa8 {[%emt 0:6:10][%cal Ya8e4] [#]} Bf5 {[%emt 0:4:8] Against Qe4} ({Black should try} 18... Be6 $1 $17 19. Qe4 d5 )19. Qd5 $15 {[%emt 0:1:50][%cal Yh2h4] } Be6 $36 {[%emt 0:3:54] Black has strong initiative. This bishop pair is nice.} 20. Qd3 {[%emt 0:2:2]} d5 $1 {[%emt 0:1:49][%cal Yd6d5,Yd5c4] Black is more active.} 21. Kd1 {[%emt 0:3:15] } (21. b3 $11 )Bxd2 $17 {[%emt 0:5:32]} 22. Nxd2 {[%emt 0:0:0]} dxc4 {[%emt 0:0:54]} 23. Qc2 {[%emt 0:0:56][%cal Rf1c4]} ({Don't blunder} 23. Nxc4 $2 Rd8 24. Nd2 Rxd3 25. Bxd3 Bxa2 $19 )Rc8 {[%emt 0:0:0] And now ...Qd6 would win.} 24. g4 {[%emt 0:5:38] White does not recover from this.} (24. b3 $17 {is a better defense.} c3 25. Bd3 )h6 {[%emt 0:0:0]} (24... Qd8 $142 {Hoping for ...c3.} 25. Ke2 Qb6 )25. Ke1 $2 {[%emt 0:0:0]} (25. b3 {was called for.} c3 26. Ne4 )c3 $19 {[%emt 0:1:44] Discovered Attack} 26. Ne4 {[%emt 0:8:56]} cxb2 {[%emt 0:1:40]} 27. Qxb2 {[%emt 0:0:21]} Qb6 {[%emt 0:0:43]} 28. Be2 {[%emt 0:1:57]} ({Much worse is} 28. Qd2 {[#]} Bxa2 $1 {} 29. Bd3 b3 $19 )Qe3 {[%emt 0:1:57] Threatens to win with ...Rc1+.} 29. Nf2 $2 {[%emt 0:1:29]} (29. Kf1 Bc4 30. Bxc4 Qxf3+ 31. Nf2 Rxc4 32. h4 )Rc1+ {[%emt 0:1:18]} 30. Nd1 {[%emt 0:0:16]} b3 {[%emt 0:0:25]} 31. a3 {[%emt 0:2:41]} Qf4 $2 {[%emt 0:0:0]} (31... Bc4 32. Qd2 Qxd2+ 33. Kxd2 Rc2+ 34. Ke1 Bxe2 )32. Qd2 {[%emt 0:0:0]} Qxd2+ {[%emt 0:0:32] Remove Defender} 33. Kxd2 {[%emt 0:0:0]} b2 {[%emt 0:0:5]} 34. Bd3 {[%emt 0:0:5]} b1=Q {[%emt 0:0:25]} 35. Bxb1 {[%emt 0:0:3]} Rxb1 {[%emt 0:0:4]} 36. Re1 {[%emt 0:1:2]} f6 {[%emt 0:0:38] } 37. Kc2 {[%emt 0:1:28]} (37. h4 $142 )Ra1 {[%emt 0:0:0]} 38. Re3 {[%emt 0:0:16]} a4 {[%emt 0:0:18] ...Bb3+ is the strong threat.} 39. Nb2 {[%emt 0:0:38]} Bb3+ {[%emt 0:0:24] Weighted Error Value: White=0.71/ Black=0.35} 0-1