[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.1"]
[White "Savchenko, Boris"]
[Black "Nitin, S.."]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2524"]
[BlackElo "2399"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 10,136,33,19,22,22,12,0,0,-10,14,0,31,-4,0,0,15,6,8,0,0,0,0,0,0,0,0,0,0,0,-2,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,0,0,0,-13,0,0,-14,-6,0,-26,0,0,0,0,0,0,0,0,0,0,-11,-1,-11,-29,-22,-25,-23,-37,-31,-22,-8,-30,0,-81,-71,-102,-115,-148,-155,-193,-8,-119,-8,-8,-8,-8,-8,-8,-8,-8,8,8,8,0,8,8,8,8,8,8,8,0,0,-8,-8,-8,-8]} 1. e4 {[%emt 0:11:03]} c5 {[%emt 0:00:33]} 2. Nf3 {[%emt 0:00:56]} d6 {[%emt 0:00:23]} 3. d4 {[%emt 0:00:44]} cxd4 {[%emt 0:00:09]} 4. Nxd4 {[%emt 0:00:31]} Nf6 {[%emt 0:00:20]} 5. Nc3 {[%emt 0:00:10]} e6 {[%emt 0:01:07]} 6. g3 {[%emt 0:02:34]} Be7 {[%emt 0:01:12] B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack.} 7. Bg2 {[%emt 0:00:07]} O-O {[%emt 0:00:17]} 8. f4 {[%emt 0:05:27]} Nc6 {[%emt 0:03:44]} 9. Nb3 {[%emt 0:01:54] [#]} d5 $146 {[%emt 0:11:45]} ({Predecessor:} 9... Rb8 10. Be3 a6 11. O-O Bd7 12. Kh1 b5 13. Bg1 Qc7 14. a3 Rfd8 15. Qe2 b4 16. axb4 Nxb4 {0-1 (33) Cohen,J (2229)-Demchenko,A (2641) Chess.com INT 2020}) 10. Be3 {[%emt 0:08:58]} (10. exd5 exd5 11. O-O (11. Nxd5 Nxd5 12. Bxd5 Nb4 $17) (11. Bxd5 Nb4 $17) 11... Bg4 $15) 10... a5 {[%emt 0:12:02]} 11. a4 {[%emt 0:29:39]} (11. exd5 exd5 12. a4 (12. Nxd5 a4 $15) 12... Re8 $15) (11. e5 $5 {[%cal Re5f6]}) 11... dxe4 {[%emt 0:12:00]} 12. Nxe4 {[%emt 0:02:59]} Nb4 {[%emt 0:06:21]} 13. Bd4 {[%emt 0:08:23]} Bd7 {[%emt 0:11:50][%cal Bc8d7,Bd7c6,Bc6d5][%mdl 32]} 14. c3 {[%emt 0:02:14]} Nxe4 {[%emt 0:06:12]} 15. Bxe4 {[%emt 0:00:53]} Bc6 {[%emt 0:00:46]} 16. Qb1 {[%emt 0:00:09]} Bd5 {[%emt 0:03:31]} 17. Nd2 {[%emt 0:06:53]} (17. cxb4 Bxb3 18. Qd3 (18. Bxh7+ $2 Kh8 $19) 18... Bxb4+ 19. Kf2 f5 $17) (17. Bxh7+ $2 Kh8 18. cxb4 Bxb3 $19) 17... Nc6 {[%emt 0:06:08]} 18. Be3 {[%emt 0:02:44]} ({Much worse is} 18. Bxh7+ Kh8 19. Be4 f5 20. Bxd5 Qxd5 $17) 18... f5 {[%emt 0:01:01]} 19. Bf3 {[%emt 0:00:37]} e5 {[%emt 0:01:06]} 20. Qc2 {[%emt 0:01:50]} Rc8 {[%emt 0:04:14][%cal Oc6b4]} 21. Bxd5+ {[%emt 0:00:40]} Qxd5 {[%emt 0:00:06]} 22. Qb3 {[%emt 0:00:04]} Qxb3 {[%emt 0:01:24]} 23. Nxb3 {[%emt 0:00:06]} Rfd8 {[%emt 0:08:20]} 24. Ke2 {[%emt 0:00:36]} exf4 {[%emt 0:00:17]} 25. Bxf4 {[%emt 0:03:04]} Re8 {[%emt 0:00:17] ...Ba3+ is the strong threat.} 26. Kd3 {[%emt 0:01:33]} Red8+ {[%emt 0:01:07]} 27. Ke2 {[%emt 0:00:20]} Re8 {[%emt 0:00:05]} 28. Kd3 {[%emt 0:00:15]} Red8+ {[%emt 0:00:06]} 29. Kc2 {[%emt 0:00:37]} Nb4+ {[%emt 0:02:41]} 30. Kb1 {[%emt 0:00:14]} Nc6 {[%emt 0:00:02]} 31. Kc2 {[%emt 0:04:40]} Nb4+ {[%emt 0:00:05]} 32. Kb1 {[%emt 0:00:04]} Nc6 {[%emt 0:00:04]} 33. Be3 {[%emt 0:01:21]} Rd5 {[%emt 0:00:14]} 34. Kc2 {[%emt 0:00:14]} Nb4+ {[%emt 0:00:11]} 35. Kb1 {[%emt 0:00:05]} Nc6 {[%emt 0:00:04]} 36. Ka2 {[%emt 0:01:08]} b5 {[%emt 0:03:19]} 37. Rhd1 {[%emt 0:01:20]} Rxd1 {[%emt 0:01:37]} 38. Rxd1 {[%emt 0:00:06]} bxa4 {[%emt 0:00:02]} 39. Nc5 {[%emt 0:00:12]} a3 {[%emt 0:00:45]} 40. b3 {[%emt 0:00:13]} Re8 {[%emt 0:03:04]} 41. Kxa3 {[%emt 0:02:50]} Bf6 {[%emt 0:01:27][%csl LRc3,LRe3]} 42. Bd4 {[%emt 0:01:57]} Rd8 {[%emt 0:00:56]} 43. Ne6 {[%emt 0:00:59]} Rd5 {[%emt 0:00:29]} 44. Ka4 {[%emt 0:00:22]} Kf7 {[%emt 0:00:25]} 45. Nc7 {[%emt 0:00:38]} Rd7 {[%emt 0:00:30]} 46. Nb5 {[%emt 0:00:07]} g5 {[%emt 0:00:34]} 47. Rd2 {[%emt 0:00:58]} Kg6 {[%emt 0:00:31]} 48. Be3 {[%emt 0:00:15] Prevents f4.} Rxd2 {[%emt 0:00:17]} 49. Bxd2 $11 {[%emt 0:00:03][%mdl 4096] Endgame KBN-KBN} Be5 {[%emt 0:00:03] Prevents Nc7.} 50. Na3 $1 {[%emt 0:00:36]} f4 {[%emt 0:00:04]} 51. Nc4 {[%emt 0:00:07]} Kf5 {[%emt 0:00:52]} (51... Bc7 $5 {[%cal Rf4g3]} 52. gxf4 (52. Kb5 Nd8 $15) 52... gxf4 $15) 52. Be1 {[%emt 0:01:27]} (52. Kb5 $11 {remains equal.} Na7+ 53. Ka6) 52... Bf6 {[%emt 0:01:01] And now ...f3 would win.} 53. Kb5 {[%emt 0:00:22]} Ne7 {[%emt 0:00:05]} 54. gxf4 {[%emt 0:00:25]} gxf4 {[%emt 0:00:06]} 55. Nxa5 {[%emt 0:00:13]} f3 $2 {[%emt 0:00:22] [#]} ({Black should play} 55... Ke4 $19 {Threatens to win with ...Ke3.} 56. Nb7 Ke3) 56. Kc5 {[%emt 0:01:03]} (56. Nc4 $11 {was the only way to keep the balance.}) 56... Ke4 {[%emt 0:00:58]} (56... Be5 $17 57. b4 Ke4) 57. Nc4 {[%emt 0:00:11] The position is equal.} Kd3 {[%emt 0:00:29]} 58. Nd2 {[%emt 0:00:31]} f2 {[%emt 0:01:09]} 59. Bxf2 {[%emt 0:00:05][%cal Of2d4] [#] Strongly threatening Bd4!} Kxd2 {[%emt 0:00:15]} 60. c4 {[%emt 0:00:11][%cal Bc3c4,Bc4c5,Bc5c6][%mdl 32]} Nf5 {[%emt 0:00:48]} 61. Kd5 {[%emt 0:00:55]} Kc3 {[%emt 0:00:34]} 62. c5 {[%emt 0:00:15]} Bd8 {[%emt 0:00:28]} (62... Kxb3 $2 63. Ke6 Nd4+ 64. Kxf6 $18) 63. Ke6 {[%emt 0:00:41]} Nd4+ {[%emt 0:00:28]} 64. Kd7 {[%emt 0:01:03]} Bf6 {[%emt 0:00:26]} 65. c6 {[%emt 0:00:30]} Nb5 {[%emt 0:00:40]} 66. Ke6 {[%emt 0:00:12]} Bd8 {[%emt 0:00:17]} 67. Kf7 {[%emt 0:00:15]} Kxb3 {[%emt 0:00:10]} 68. h4 {[%emt 0:00:07]} h5 {[%emt 0:00:11] Weighted Error Value: White=0.10 (very precise) /Black=0.12 (very precise)} 1/2-1/2

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.2"]
[White "Srihari L R"]
[Black "Aronyak Ghosh"]
[Result "0-1"]
[WhiteElo "2404"]
[BlackElo "2494"]
[Annotator "TA"]
[PlyCount "2"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 2,2,67]} 1. e4 {[%emt 0:00:30]} Nf6 {[%emt 0:02:53] An uneventful encounter.} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.3"]
[White "Fedorov, Alexei"]
[Black "Abdyjapar, Asyl"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2529"]
[BlackElo "2346"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 21,89,16,23,-4,0,-17,0,-30,-29,-60,-48,-40,-40,-66,-25,-25,-24,-30,-29,-85,-74,-158,-173,-170,-152,-163,-150,-154,-50,-56,-35,-37,-24,-116,58,56,414,409,416,416,409,401,389,386,479,465,486,491,998,994,954,696,677,486,510,527,515,519,648,540,816,562,539,586,637,535,704,681,705,682]} 1. e4 {[%emt 0:00:03]} e5 {[%emt 0:00:04]} 2. Bc4 {[%emt 0:00:13]} Nf6 {[%emt 0:00:56]} 3. d3 {[%emt 0:00:06]} Bc5 {[%emt 0:01:51]} 4. Nf3 {[%emt 0:00:23]} d6 {[%emt 0:00:10]} 5. c3 {[%emt 0:01:35]} O-O {[%emt 0:00:10]} 6. O-O {[%emt 0:00:15]} Nc6 {[%emt 0:00:19]} 7. h3 {[%emt 0:03:30]} a6 {[%emt 0:00:32]} 8. Bb3 {[%emt 0:01:02]} h6 {[%emt 0:00:30]} 9. Re1 {[%emt 0:01:00]} Be6 {[%emt 0:01:11]} 10. Bc2 {[%emt 0:08:38]} Ba7 {[%emt 0:03:19]} 11. Nbd2 {[%emt 0:19:33]} Re8 {[%emt 0:04:20]} 12. Nh2 {[%emt 0:02:21] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} d5 {[%emt 0:04:35]} 13. Qf3 {[%emt 0:00:06]} Ne7 {[%emt 0:04:12][%cal Bc6e7,Be7g6,Bg6h4][%mdl 32]} 14. Ndf1 {[%emt 0:07:41][%cal Oc1h6] The position is equal.} Ng6 {[%emt 0:03:00] [#]} 15. Bd2 $146 {[%emt 0:02:03]} ({Predecessor:} 15. Ne3 c6 16. Nhg4 Nxg4 17. hxg4 Bxe3 18. Bxe3 d4 19. Bd2 b5 20. Rec1 c5 21. Bd1 {0-1 (108) Hansen,S (2577)-Leko,P (2737) Istanbul 2012}) 15... Nh4 {[%emt 0:06:53]} 16. Qe2 {[%emt 0:00:37]} Qd7 {[%emt 0:01:13][%cal Oe6h3]} 17. Ne3 {[%emt 0:02:21]} dxe4 {[%emt 0:05:09]} (17... Rad8 $5 {[%cal Rd5e4]} 18. Neg4 Nxg4 19. Nxg4 Ng6 $15) 18. dxe4 {[%emt 0:00:23]} Rad8 {[%emt 0:00:11]} 19. Red1 {[%emt 0:10:47]} Qc6 {[%emt 0:04:07]} 20. g3 {[%emt 0:02:34]} (20. Nhg4 $1 $11 Nxg4 21. hxg4) 20... Ng6 $17 {[%emt 0:03:48]} 21. Nf5 {[%emt 0:06:33]} (21. Neg4 $142) 21... Bc4 $36 {[%emt 0:08:50][%mdl 2048] White is under strong pressure.} 22. Qf3 {[%emt 0:08:10]} Qb5 {[%emt 0:01:20]} 23. Nxg7 {[%emt 0:01:26] [#]} Rxd2 $1 {[%emt 0:03:38]} (23... Kxg7 24. Bxh6+ Kxh6 25. Qxf6 Rxd1+ 26. Rxd1 $11) 24. Nxe8 {[%emt 0:03:05] [#]} Rxd1+ {[%emt 0:02:05]} (24... Rxf2 $1 $17 25. Nxf6+ Kf8 26. Nd7+ (26. Rd8+ $2 Ke7 $19) 26... Ke7 27. Qxf2 Bxf2+ 28. Kxf2 Qxb2) 25. Rxd1 $15 {[%emt 0:00:54]} Nxe8 {[%emt 0:00:10]} 26. Bb3 {[%emt 0:04:36]} Kg7 {[%emt 0:08:27]} 27. h4 {[%emt 0:03:24]} (27. Rd8 $11 {remains equal.} Bxb3 28. axb3) 27... Nf6 $2 {[%emt 0:01:18]} ({Black should play} 27... Bxb3 $17 28. axb3 Qxb3) 28. Ng4 $14 {[%emt 0:01:59][%cal Bh2g4,Bg4h6,Bh6f5][%mdl 32]} Nh7 {[%emt 0:02:35][%mdl 8192] This costs Black the game.} ({Better is} 28... Nxg4 $14 29. Qxg4 h5) 29. Bxc4 $18 {[%emt 0:04:02] Dancing on a razor blade.} Qxc4 {[%emt 0:00:08]} 30. Qf5 {[%emt 0:00:50] Rd7 is the strong threat.} Ngf8 {[%emt 0:04:28] Inhibits Rd7.} 31. Qxe5+ {[%emt 0:01:13]} f6 {[%emt 0:00:04]} 32. Qe7+ {[%emt 0:01:05]} Kh8 {[%emt 0:26:57]} 33. Nxh6 {[%emt 0:01:38] And now Nf5 would win. White is clearly winning.} ({Less strong is} 33. Rd8 Qg8 $14) 33... Qe2 {[%emt 0:00:00]} 34. Rf1 {[%emt 0:00:15]} Qh5 {[%emt 0:00:00]} (34... Qd3 $142) 35. Nf5 {[%emt 0:00:13][%csl Gf5][%cal Re7g7]} Qg4 {[%emt 0:00:00] Prevents Qg7+.} 36. Kg2 {[%emt 0:00:14]} Bb6 {[%emt 0:00:00]} 37. f3 {[%emt 0:00:12]} Qg8 {[%emt 0:00:00]} 38. Rd1 {[%emt 0:01:41] Hoping for Rd8.} Ng6 {[%emt 0:00:00]} 39. Qd8 {[%emt 0:00:15]} Ngf8 {[%emt 0:00:00]} 40. b3 {[%emt 0:00:24]} Qe6 {[%emt 0:00:00]} 41. Qe7 {[%emt 0:00:20]} Qxe7 {[%emt 0:00:00]} 42. Nxe7 {[%emt 0:00:03]} c6 {[%emt 0:00:00]} 43. f4 {[%emt 0:00:35]} Kg7 {[%emt 0:00:00]} 44. Nf5+ {[%emt 0:00:27]} Kg6 {[%emt 0:00:00]} 45. Nd6 {[%emt 0:00:12] Weighted Error Value: White=0.44/Black=0.48} 1-0

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.4"]
[White "Tran, Tuan Minh"]
[Black "Konguvel, Ponnuswamy"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "2533"]
[BlackElo "2331"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 13,130,53,35,46,59,59,59,59,59,65,68,68,68,70,72,79,67,27,43,46,46,18,18,22,20,16,6,17,25,18,31,-47,76,-49,27,-98,-119,-188,0,0,0,0,0,0,0,0,36,26,63,74,76,63,106,76,125,133,136,136,136,134,134,134,149,93,86,45,35,0,44,0,0,0,0,-135,-146,-129,-142,-185,-143,-189,0,-557,-555,-572,-557,-2472,-1329,-1216,-1038,-1013,-997,-947,-956,-922,-920,-29971,-29972,-29972,-29973,-29973,-29974,-29974,-29975,-29975,-29976,-29976,-29977,-29976,-29977,-29977,-29978,-29965,-12840,-29979,-29980,-29979,-29979,-29992,-29989]} 1. d4 {[%emt 0:01:44]} Nf6 {[%emt 0:00:16]} 2. c4 {[%emt 0:00:29]} g6 {[%emt 0:00:11]} 3. Nc3 {[%emt 0:00:08]} Bg7 {[%emt 0:00:23]} 4. e4 {[%emt 0:00:04]} d6 {[%emt 0:00:06]} 5. Be2 {[%emt 0:00:18]} O-O {[%emt 0:00:26]} 6. Be3 {[%emt 0:00:03]} e5 {[%emt 0:00:48]} 7. d5 {[%emt 0:00:05]} Na6 {[%emt 0:00:30]} 8. g4 {[%emt 0:00:06] E73: King's Indian: Averbakh Variation without 6...c5.} Nc5 {[%emt 0:00:55]} 9. f3 {[%emt 0:00:05]} h5 {[%emt 0:02:28]} 10. g5 {[%emt 0:00:41] White is slightly better.} Nh7 {[%emt 0:00:08]} 11. h4 {[%emt 0:00:22]} f6 {[%emt 0:00:17]} 12. gxf6 {[%emt 0:01:39]} Bxf6 {[%emt 0:00:08]} 13. Bf2 {[%emt 0:00:13]} Be7 {[%emt 0:01:15]} 14. Kd2 {[%emt 0:04:26]} c6 {[%emt 0:01:42] [#]} 15. b4 $146 {[%emt 0:02:46]} ({Predecessor:} 15. Kc2 cxd5 16. cxd5 Bd7 17. Rc1 b5 18. Bxc5 dxc5 19. Bxb5 Bxb5 20. Nxb5 Rb8 21. Nc3 {1-0 (41) Yilmaz,M (2630)-Khusnutdinov,R (2484) Chess.com INT 2021}) 15... Na6 {[%emt 0:09:14]} 16. a3 {[%emt 0:01:17]} Nc7 {[%emt 0:19:49]} 17. Nh3 {[%emt 0:09:48]} cxd5 {[%emt 0:03:58] Threatens to win with ...d4.} 18. cxd5 {[%emt 0:02:51]} Bxh4 {[%emt 0:10:18]} 19. Qg1 {[%emt 0:00:25][%csl LRa7,LRg6]} Kg7 {[%emt 0:04:35]} 20. Bxa7 {[%emt 0:04:53]} Bxh3 {[%emt 0:20:49] Dancing on a razor blade.} 21. Rxh3 {[%emt 0:00:08]} Bg5+ {[%emt 0:01:33]} 22. Kc2 {[%emt 0:00:49]} (22. Be3 $1 $14) 22... Qf6 {[%emt 0:02:13]} (22... Qc8 $1 $15 23. Rg3 Rf6) 23. Kb3 {[%emt 0:01:23] [#]} (23. Rd1 $16) 23... Bd2 {[%emt 0:03:12]} (23... Ne6 $1 $15 24. Rh1 Rxa7 25. dxe6 (25. Qxa7 Nd4+ 26. Kb2 Nxe2 $17) 25... Raa8) 24. Nb1 {[%emt 0:03:28]} (24. Rxh5 Ng5 25. Rxg5 Qxg5 26. Qxg5 Bxg5 $11) (24. f4 $11) 24... Ng5 $17 {[%emt 0:01:29][%cal Bh7g5,Bg5h3,Bh3f4][%mdl 32]} 25. Rg3 {[%emt 0:02:13]} (25. Rxh5 $17 {was necessary.} Nxf3 26. Qg4) 25... h4 $2 {[%emt 0:01:34]} ({Black should play} 25... Bf4 $1 $19 {[%cal Rf4g3]} 26. Rg2 h4) 26. Nxd2 $11 {[%emt 0:04:24]} hxg3 {[%emt 0:00:02]} 27. Be3 {[%emt 0:03:10]} Nh3 $1 {[%emt 0:00:01]} 28. Qxg3 {[%emt 0:00:05]} Nf4 {[%emt 0:00:03] Pair of Knights!} 29. Bf1 {[%emt 0:00:24]} Rh8 {[%emt 0:01:17]} 30. Rc1 {[%emt 0:01:50][%mdl 1024] White has compensation.} Ne8 {[%emt 0:02:06]} 31. a4 {[%emt 0:04:26][%cal Ba3a4,Ba4a5][%mdl 32]} Rh7 {[%emt 0:01:10]} 32. a5 {[%emt 0:01:17]} Kf8 {[%emt 0:01:20]} 33. Nc4 {[%emt 0:02:46]} Rc7 {[%emt 0:03:03]} (33... Rh1 $142) 34. Qg4 $16 {[%emt 0:02:29]} Kg7 {[%emt 0:01:00]} 35. Rc2 {[%emt 0:00:54]} Rf7 {[%emt 0:00:48]} 36. Nb6 {[%emt 0:03:58]} Rd8 {[%emt 0:00:06][%cal Ba8d8,Bd8h8,Bh8h2,Bh2h1,Bh1b1][%mdl 32]} 37. Bb5 {[%emt 0:00:11]} Qe7 {[%emt 0:02:28] Prevents Bd7.} (37... Nc7 $2 38. Nd7 Rdxd7 39. Bxd7 $18) 38. Qg1 {[%emt 0:17:40]} (38. Rh2 $142) 38... Nc7 {[%emt 0:00:47]} 39. Bc4 {[%emt 0:02:15]} Rh8 {[%emt 0:01:39]} 40. Rc3 {[%emt 0:00:19]} Qe8 {[%emt 0:00:51]} (40... Rh3 $5 {[%cal Rh3f3]}) 41. Qf1 {[%emt 0:00:21]} Rh2 {[%emt 0:00:18]} 42. b5 {[%emt 0:03:08]} ({Much worse is} 42. Rc2 Qh8 43. Bxf4 Rxf4 $17) 42... Qh8 {[%emt 0:00:05]} 43. Kb4 {[%emt 0:05:20]} (43. Qc1 $11) 43... Rh1 $1 $17 {[%emt 0:01:16] Black is more active.} 44. Qf2 {[%emt 0:00:06]} Rb1+ $1 {[%emt 0:00:04]} 45. Rb3 {[%emt 0:03:20]} Qh1 $36 {[%emt 0:00:21][%mdl 2048] Hoping for ...Rxb3+. Black has strong initiative.} 46. Nc8 {[%emt 0:10:00] [#]} (46. Qc2 $17 {was worth a try.} Rxb3+ 47. Bxb3) 46... Qd1 $2 {[%emt 0:00:04]} ({Better is} 46... Ne8 $1 $19 {aiming for ...Rxb3+.} 47. b6 Rxb3+ 48. Kxb3 Qh3) 47. Bxf4 $4 {[%emt 0:00:24][%mdl 8192]} (47. Qd2 $11 {and White stays safe.} Rxb3+ 48. Bxb3 Nd3+ 49. Kc4 Nb2+ 50. Kc3 (50. Qxb2 $2 Qf1+ 51. Kc3 Rxf3 $19) 50... Nxb5+ 51. Kxb2 Qxf3 52. Bc4) 47... Rxf4 $19 {[%emt 0:00:29]} 48. Nxd6 {[%emt 0:03:32] [#] Rxb1 is the strong threat.} Rxf3 $1 {[%emt 0:01:26]} 49. Qa2 {[%emt 0:01:39]} Rbxb3+ {[%emt 0:04:05]} 50. Bxb3 {[%emt 0:00:02]} Qd4+ {[%emt 0:00:49]} 51. Bc4 {[%emt 0:00:51]} Rf2 {[%emt 0:00:50]} 52. Qa3 {[%emt 0:00:26]} Rb2+ {[%emt 0:00:49]} ({Inferior is} 52... Rc2 53. Qd3 Qf2 54. Kb3 $11) 53. Ka4 {[%emt 0:00:00] [#]} Nxb5 $1 {[%emt 0:01:26][%mdl 512]} 54. Nf5+ {[%emt 0:00:47]} (54. Qxb2 Qxb2) 54... gxf5 {[%emt 0:00:00]} 55. Qe7+ {[%emt 0:00:46]} Kg6 {[%emt 0:00:00]} 56. Qe6+ {[%emt 0:00:39]} Kg5 {[%emt 0:00:00][%cal Rd4c4]} 57. Qxf5+ {[%emt 0:00:05]} Kh4 {[%emt 0:00:00][%cal Rd4c4]} 58. Qf6+ {[%emt 0:00:37]} Kg3 {[%emt 0:00:00][%cal Rd4c4]} 59. Qg5+ {[%emt 0:00:12]} Kf3 {[%emt 0:00:28][%cal Rd4c4]} 60. Qf5+ {[%emt 0:01:06]} Ke3 {[%emt 0:00:15][%cal Rd4c4]} 61. Qg5+ {[%emt 0:00:30]} Kxe4 {[%emt 0:01:05][%cal Rd4c4]} 62. Qh4+ {[%emt 0:00:15]} Ke3 {[%emt 0:01:00] ( -> ...Qd1+)} 63. Qe1+ {[%emt 0:00:05]} Kf3 {[%emt 0:00:20] Black mates.} 64. Qf1+ {[%emt 0:00:28]} Kg3 {[%emt 0:00:10]} 65. Qe1+ {[%emt 0:00:13]} Kh2 {[%emt 0:00:16] Weighted Error Value: White=0.49/Black=0.25 (precise)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.5"]
[White "Deepan Chakkravarthy J."]
[Black "Aaryan Varshney"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2478"]
[BlackElo "2308"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,77,-8,-9,0,43,0,17,8,14,14,23,14,14,12,15,14,14,-29,-19,-16,-9,-7,-9,-6,-14,-16,-18,-31,-29,-21,-21,-39,-27,-47,-54,-61,-58,-64,-64,-66,-57,-95,-79,-97,-81,-83,-75,-85,-44,-45,-38,-42,-42,-29,-26,-45,-32,-49,-25,-25,-3,-41,-39,-44,0,-12,0,-44,0,-27]} 1. Nf3 {[%emt 0:07:11]} d5 {[%emt 0:00:13]} 2. g3 {[%emt 0:00:07]} c5 {[%emt 0:00:04]} 3. Bg2 {[%emt 0:00:04]} Nf6 {[%emt 0:00:11]} 4. c4 {[%emt 0:00:10]} Nc6 {[%emt 0:03:46]} 5. O-O {[%emt 0:01:26]} d4 {[%emt 0:09:23]} 6. e3 {[%emt 0:00:34] A30: Symmetrical English: Double Fianchetto and Hedgehog.} dxe3 {[%emt 0:01:19]} 7. fxe3 {[%emt 0:04:12]} e5 {[%emt 0:01:51] Against d4} 8. Nc3 {[%emt 0:01:36][%cal Od2d4]} Be7 {[%emt 0:02:24] [#]} 9. b3 $146 {[%emt 0:16:50]} ({Predecessor:} 9. Nh4 Be6 10. Nf5 Bxc4 11. Nxg7+ Kf8 12. Nf5 Bxf1 13. Qxf1 Rg8 14. d4 cxd4 15. exd4 Nxd4 {1-0 (49) Vasilev,S-Spasov,S (2172) ICCF email 2010}) 9... O-O {[%emt 0:02:03]} 10. Bb2 {[%emt 0:00:17][%cal Oc3d5]} Bg4 {[%emt 0:02:40]} 11. h3 {[%emt 0:10:42]} Bh5 {[%emt 0:05:37]} 12. g4 {[%emt 0:15:22]} Bg6 {[%emt 0:00:22]} 13. Nd5 {[%emt 0:03:37]} Nxd5 {[%emt 0:09:11]} 14. cxd5 {[%emt 0:00:02]} Qxd5 {[%emt 0:00:55] [#] Hoping for ...e4.} 15. Nxe5 {[%emt 0:00:05]} Be4 {[%emt 0:01:34]} 16. Bxe4 {[%emt 0:00:40]} Qxe4 {[%emt 0:00:08]} 17. Qf3 {[%emt 0:00:07]} (17. Rf4 {is interesting.} Qd5 18. Nxc6 Qxc6 19. Qf3) 17... Qxf3 {[%emt 0:01:20]} 18. Nxf3 {[%emt 0:00:02]} Rad8 {[%emt 0:01:17][%cal Ba8d8,Bd8d5,Bd5b5][%mdl 32]} 19. Bc3 {[%emt 0:00:45]} Rfe8 {[%emt 0:04:24]} 20. a3 {[%emt 0:01:26]} Rd5 {[%emt 0:03:55]} 21. b4 {[%emt 0:02:19]} cxb4 {[%emt 0:01:44]} 22. axb4 {[%emt 0:00:02]} a6 {[%emt 0:00:53][%cal Ba7a6,Ba6a5][%mdl 32]} 23. Rfb1 {[%emt 0:02:54]} Rb5 {[%emt 0:02:22]} 24. Ra4 {[%emt 0:04:11]} a5 {[%emt 0:14:33][%cal Ra5b4]} 25. Kf2 {[%emt 0:00:33]} Bxb4 {[%emt 0:05:44]} 26. Ke2 {[%emt 0:08:52]} Rc5 {[%emt 0:04:36]} 27. Bxb4 {[%emt 0:03:35]} Nxb4 {[%emt 0:00:29]} 28. Ne1 {[%emt 0:00:13]} h5 {[%emt 0:02:09]} 29. Nd3 {[%emt 0:01:22]} Nxd3 {[%emt 0:00:30]} 30. Kxd3 {[%emt 0:00:03]} hxg4 {[%emt 0:00:30]} 31. hxg4 $15 {[%emt 0:00:02][%mdl 4096] Endgame KRR-KRR} Re7 {[%emt 0:01:50]} 32. Rc4 {[%emt 0:04:35]} Rg5 {[%emt 0:06:53]} 33. Rb6 {[%emt 0:03:06]} g6 {[%emt 0:01:28]} 34. Ke2 {[%emt 0:00:10]} Rge5 {[%emt 0:01:03]} 35. Kf3 {[%emt 0:00:13]} R5e6 {[%emt 0:01:27]} 36. Rb5 {[%emt 0:02:13]} Re5 {[%emt 0:02:50]} 37. Rb6 {[%emt 0:00:23]} R5e6 {[%emt 0:00:31]} 38. Rb5 {[%emt 0:00:56]} Re5 {[%emt 0:00:18]} 39. Rb6 {[%emt 0:00:50] Weighted Error Value: White=0.09 (flawless) /Black=0.11 (very precise)} 1/2-1/2

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.6"]
[White "Stupak, Kirill"]
[Black "Saravana, Krishnan P."]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2440"]
[BlackElo "2269"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 12,77,2,-7,12,0,0,0,0,0,0,0,0,0,0,-37,-35,-87,-84,-72,-70,-70,-71,-75,-73,-88,-88,-87,-81,-79,-105,-159,-108,-100,0,0,0,0,0,0,0,-9,0,0,0,0,0,0,0,0,0,0,0,0,0,-51,53,0,0,-20,-15,-49,0,-42,0,0,0,0]} 1. d4 {[%emt 0:01:14]} d5 {[%emt 0:00:14]} 2. c4 {[%emt 0:00:13]} c6 {[%emt 0:00:10]} 3. Nf3 {[%emt 0:00:11]} Nf6 {[%emt 0:00:33]} 4. Nc3 {[%emt 0:00:06]} e6 {[%emt 0:00:53]} 5. g3 {[%emt 0:01:08]} dxc4 {[%emt 0:00:53]} 6. Bg2 {[%emt 0:00:02]} b5 {[%emt 0:01:11][%cal Bb7b5,Bb5b4][%mdl 32]} 7. Ne5 {[%emt 0:03:50]} a6 {[%emt 0:00:54] E04: Open Catalan: 5 Nf3.} 8. O-O {[%emt 0:19:51]} Bb7 {[%emt 0:01:45]} 9. b3 {[%emt 0:00:14]} b4 {[%emt 0:01:15]} 10. Ne4 {[%emt 0:02:34]} Nxe4 {[%emt 0:01:38]} 11. Bxe4 {[%emt 0:00:10]} c3 {[%emt 0:00:12]} 12. a3 {[%emt 0:18:20]} a5 $1 {[%emt 0:03:10]} 13. Qd3 $1 {[%emt 0:00:37][%mdl 4] is recently more successful than 13.axb4.} Bd6 {[%emt 0:02:19] [#]} 14. axb4 $146 {[%emt 0:15:58] [#]} (14. Bf4 $15) ({Predecessor:} 14. Bf4 g5 15. Be3 f5 16. Bxf5 Bxe5 17. dxe5 exf5 18. Qxf5 Bc8 19. e6 Qe7 20. axb4 Bxe6 21. Qe5 {½-½ (21) Petrov,N (2559)-Lobanov,S (2516) Yerevan 2022}) 14... f5 $1 $17 {[%emt 0:12:58]} 15. Bg2 {[%emt 0:05:09]} Bxe5 {[%emt 0:00:30]} 16. dxe5 {[%emt 0:00:30] Threatens to win with Qxd8+.} Qxd3 {[%emt 0:00:30]} ({Resist} 16... axb4 17. Rxa8 Bxa8 18. Qc4 $14) 17. exd3 {[%emt 0:00:30]} axb4 {[%emt 0:00:30]} 18. Rxa8 {[%emt 0:00:30]} Bxa8 {[%emt 0:00:30]} 19. Be3 {[%emt 0:00:30]} Kd7 {[%emt 0:00:30]} 20. Ra1 {[%emt 0:00:30] Against Na6} Bb7 {[%emt 0:00:30]} 21. Bb6 {[%emt 0:00:30] [#]} (21. Kf1 $142) 21... Na6 {[%emt 0:00:30]} ({Better is} 21... Kc8 $1 22. Be3 Nd7) 22. Kf1 {[%emt 0:00:30]} Ra8 {[%emt 0:00:30]} (22... Kc8 $17 {And now ...c5 would win.} 23. Ke1 c5) 23. Ke1 $1 $11 {[%emt 0:00:30]} Kc8 {[%emt 0:00:30] ...c5 is the strong threat.} 24. d4 {[%emt 0:00:30] Prevents c5.} c5 {[%emt 0:00:30]} 25. Bf1 {[%emt 0:00:30]} cxd4 {[%emt 0:00:30]} 26. Bxd4 {[%emt 0:00:30]} Nc7 {[%emt 0:00:30]} 27. Rxa8+ {[%emt 0:00:30]} Bxa8 {[%emt 0:00:30][%mdl 4096] Endgame KBB-KBN} 28. Bc5 $1 {[%emt 0:00:30]} Bd5 {[%emt 0:00:30]} 29. Bxb4 {[%emt 0:00:30]} c2 {[%emt 0:00:30]} 30. Kd2 {[%emt 0:00:30]} Bxb3 {[%emt 0:00:30]} 31. Bd3 {[%emt 0:00:30]} Kd7 {[%emt 0:00:30]} 32. Ba3 {[%emt 0:00:30]} Kc6 {[%emt 0:00:30]} 33. Ke3 {[%emt 0:00:30]} (33. Kc3 $11 Bd5 34. Bb2 (34. Kxc2 Be4 $11)) 33... Bd5 {[%emt 0:00:30]} (33... Nb5 $15 34. Bb2 g5) 34. Bc1 {[%emt 0:00:30]} (34. Bxc2 $14 Nb5 35. Bf8) 34... Be4 {[%emt 0:00:30]} 35. Be2 {[%emt 0:00:30]} Nd5+ {[%emt 0:00:30]} 36. Kd4 {[%emt 0:00:30] aiming for f3.} Nc7 (36... Nb4 $1 $15 {feels stronger.} 37. Bc4 h6) 37. Kc3 {[%emt 0:27:49]} Nd5+ {[%emt 1:00:59]} 38. Kc4 {[%emt 0:00:31]} Nb6+ {[%emt 0:00:24]} 39. Kb4 {[%emt 0:00:37] Weighted Error Value: White=0.11 (very precise) /Black=0.16 (very precise)} 1/2-1/2

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.7"]
[White "Hirthickkesh PR"]
[Black "Ajay Karthikeyan"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2232"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,102,2,5,5,26,0,23,17,22,9,23,14,20,22,15,18,13,15,20,17,18,0,0,-43,-43,-47,-52,-76,-56,-128,-40,-40,0,0,0,0,0,0,0,0,0,-22,0,-13,0,-37,-27,-89,-89,-91,-90,-86,-79,-192,-201,-189,-189,-200,-197,-197,-202,-207,-122,-122,-33,-35,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. b3 {[%emt 0:00:05]} e5 {[%emt 0:00:28]} 2. Bb2 {[%emt 0:00:05]} Nc6 {[%emt 0:00:05]} 3. e3 {[%emt 0:00:07]} Nf6 {[%emt 0:00:19]} 4. Bb5 {[%emt 0:00:56]} Qe7 {[%emt 0:00:48]} 5. Ne2 {[%emt 0:03:50]} a6 {[%emt 0:00:16]} 6. Bxc6 {[%emt 0:00:15] A01: Nimzowitsch-Larsen Opening.} dxc6 {[%emt 0:00:02]} 7. d3 {[%emt 0:05:02]} e4 {[%emt 0:09:25]} 8. Nbc3 {[%emt 0:05:54] [#] White has an edge.} Bf5 $146 {[%emt 0:09:17]} ({Predecessor:} 8... Bg4 9. dxe4 Rd8 {½-½ (9) Sosovicka,J (2123)-Macka,O (2031) Slovakia 2018}) 9. Ng3 {[%emt 0:07:24]} Bg4 {[%emt 0:02:38]} 10. Qd2 {[%emt 0:00:54][%cal Rg3e4]} exd3 {[%emt 0:00:51]} 11. f3 {[%emt 0:12:19]} Be6 {[%emt 0:12:37]} 12. Qxd3 {[%emt 0:00:33]} Rd8 {[%emt 0:01:46]} 13. Qe2 {[%emt 0:00:30]} Qb4 {[%emt 0:00:30]} 14. O-O {[%emt 0:00:30]} Be7 {[%emt 0:00:30]} 15. Nce4 {[%emt 0:00:30]} Nxe4 {[%emt 0:00:30]} 16. fxe4 {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 17. Qf3 {[%emt 0:00:30]} f6 {[%emt 0:00:30]} 18. Nh5 {[%emt 0:00:30]} Bf7 {[%emt 0:00:30]} (18... Qc5 $5 {[%cal Re6f7]}) 19. e5 {[%emt 0:00:30] [#]} ({Avoid the trap} 19. Nxg7 $2 Kxg7 20. e5 (20. Bxf6+ $2 Bxf6 21. Qxf6+ Kg8 $19) 20... Kh8 21. exf6 Bc5 $19) (19. Ng3 $15) 19... Bxh5 {[%emt 0:00:30]} (19... fxe5 $1 $17 20. a3 Qh4) 20. Qxh5 $15 {[%emt 0:00:30]} Qe4 {[%emt 0:00:30][%csl LRc2,LRe3] ...Rd2 is the strong threat.} (20... f5 {seems wilder.} 21. Rxf5 Qd2 22. Rxf8+ Rxf8 23. Qd1 Qxe3+ 24. Kh1 Qe4) 21. exf6 $1 {[%emt 0:00:30] Threatens to win with Qg5.} Bxf6 {[%emt 0:00:30]} 22. Bxf6 {[%emt 0:00:30]} Qxe3+ {[%emt 0:00:30]} 23. Kh1 {[%emt 0:00:30]} Rxf6 {[%emt 0:00:30]} 24. Rxf6 {[%emt 0:00:30]} gxf6 $40 {[%emt 0:00:30][%mdl 128] Black attacks.} 25. Rd1 {[%emt 0:00:30]} Rxd1+ {[%emt 0:00:30]} 26. Qxd1 $11 {[%emt 0:00:30][%mdl 4096] Endgame KQ-KQ} Kf7 {[%emt 0:00:30]} 27. Qh5+ {[%emt 0:00:30]} Kf8 {[%emt 0:00:30][%cal Re3e1]} 28. Qd1 {[%emt 0:00:30] Inhibits Qe1+.} (28. h3 $1 $11) 28... Ke7 $17 {[%emt 0:00:30]} 29. h3 {[%emt 0:00:30]} Qe4 {[%emt 0:00:30]} 30. Qd2 {[%emt 0:00:30]} b6 {[%emt 0:00:30]} 31. Qh6 {[%emt 0:00:30]} (31. c4 $17) 31... Qxc2 $19 {[%emt 0:00:30]} 32. Qg7+ {[%emt 0:00:30]} Ke6 {[%emt 0:00:30]} 33. Qg8+ {[%emt 0:00:30]} Kd7 {[%emt 0:00:30]} 34. Qg4+ {[%emt 0:00:30]} Kd6 {[%emt 0:00:30]} 35. Qf4+ {[%emt 0:00:30]} Ke6 {[%emt 0:00:30]} (35... Kc5 $19 36. Qa4 Qe2 37. Qa3+ Kd4 38. Qb4+ Kd5) 36. Qg4+ $17 {[%emt 0:00:30] [#]} f5 {[%emt 0:00:30]} ({Black should try} 36... Qf5 $1 $17 {[%cal Rf5g4] aiming for ...Qxg4.} 37. Qe2+ Kd7 38. Qxa6 b5) 37. Qg8+ $15 {[%emt 0:00:30]} Kf6 {[%emt 0:00:30]} (37... Kd6 $5 {[%cal Rc2a2]} 38. Qd8+ Kc5 39. Qe7+ Kd4 40. Qxc7 b5 $11) 38. Qxh7 {[%emt 0:00:30] The position is equal.} Qxa2 {[%emt 0:00:30]} 39. Qh6+ {[%emt 0:00:30]} Ke7 {[%emt 0:00:30]} 40. Qg7+ {[%emt 0:00:30]} Ke6 {[%emt 0:00:30]} 41. h4 {[%emt 0:00:30]} Qf2 {[%emt 0:00:30]} 42. Qg6+ {[%emt 0:00:30]} Ke7 {[%emt 0:00:30]} 43. Qg7+ {[%emt 0:00:30]} Ke6 {[%emt 0:00:30]} 44. Qg6+ {[%emt 0:00:30]} Ke5 {[%emt 0:00:30]} 45. h5 {[%emt 0:00:30]} Qh4+ {[%emt 0:00:30]} 46. Kg1 {[%emt 0:00:30]} Qd4+ {[%emt 0:00:30]} 47. Kh1 {[%emt 0:00:30] And now Qg7+ would win.} Qg4 {[%emt 0:00:30]} 48. Qh7 {[%emt 0:00:30]} Qh4+ {[%emt 0:00:30]} 49. Kg1 {[%emt 0:00:30]} Qe1+ {[%emt 0:00:30]} 50. Kh2 {[%emt 0:00:30] White threatens Qe7+ and mate.} Qh4+ {[%emt 0:00:30]} 51. Kg1 {[%emt 0:00:30]} Qd4+ {[%emt 0:00:30] Black had all chances to win.  Weighted Error Value: White=0.11 (very precise) /Black=0.11 (very precise)} 1/2-1/2

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.8"]
[White "Baghdasaryan, Vahe"]
[Black "Nguyen, Duc Hoa"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2267"]
[BlackElo "2398"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 16,91,22,14,25,30,13,3,19,-7,25,24,65,65,65,63,76,68,72,54,70,49,89,97,122,87,92,84,156,72,97,95,131,78,77,70,72,70,70,70,139,-100,-120,-809,-739,-720,-301,-597,-598,-643,-628,-624,-614,-416,-598,-581,-552,-468,-62,-62,-65,-45,-41,-69,0,-161,-164,-150,102,100,100,100,104,89,83,83,298,66]} 1. e4 {[%emt 0:00:30]} c5 {[%emt 0:00:30]} 2. Nf3 {[%emt 0:00:30]} d6 {[%emt 0:00:30]} 3. d4 {[%emt 0:00:30]} cxd4 {[%emt 0:00:30]} 4. Nxd4 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 5. Nc3 {[%emt 0:00:30]} a6 {[%emt 0:00:30]} 6. Bg5 {[%emt 0:00:30]} e6 {[%emt 0:00:30]} 7. f4 {[%emt 0:00:30]} h6 {[%emt 0:00:30]} 8. Bh4 {[%emt 0:00:30]} Qb6 {[%emt 0:00:30]} 9. a3 {[%emt 0:00:30]} Be7 {[%emt 0:00:30][%cal Of6e4] B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7.} (9... Qxb2 $2 10. Na4 Qxa1 11. Qxa1 $18) 10. Bf2 {[%emt 0:00:30][%cal Od4e6]} Qc7 {[%emt 0:00:30]} (10... Qxb2 $2 11. Na4 Qxa1 12. Qxa1 $18) 11. Qe2 {[%emt 0:00:30]} Nc6 {[%emt 0:00:30] The position is equal.} 12. O-O-O {[%emt 0:00:30][%cal Ba1d1,Bd1d4,Bd4c4][%mdl 32] [#]} O-O $146 {[%emt 0:00:30]} ({Predecessor:} 12... Nxd4 13. Rxd4 b5 14. g4 e5 15. Rd3 exf4 16. Rg1 Be6 17. Nd5 Bxd5 18. exd5 Nd7 {1-0 (56) Kotronias,V (2597)-Hagen,A (2453) Plovdiv 2012}) 13. g4 {[%emt 0:00:30]} Nxd4 {[%emt 0:00:30]} (13... e5 {with more complications.} 14. Nf5 exf4 15. h4 f3) 14. Rxd4 {[%emt 0:00:30]} e5 {[%emt 0:00:30]} 15. Rc4 {[%emt 0:00:30]} Qd8 {[%emt 0:00:30]} 16. g5 {[%emt 0:00:30]} hxg5 {[%emt 0:00:30]} 17. fxg5 {[%emt 0:00:30]} Bg4 {[%emt 0:00:30]} 18. Qd2 {[%emt 0:00:30]} Nd7 {[%emt 0:00:30]} 19. h4 {[%emt 0:00:30]} Nc5 {[%emt 0:00:30]} 20. Nd5 {[%emt 0:00:30]} b5 {[%emt 0:00:30]} 21. Rb4 {[%emt 0:00:30]} Be6 {[%emt 0:00:30]} (21... Rb8 $142) 22. Rg1 {[%emt 0:00:30]} (22. Be3 $142 $1) 22... Rc8 {[%emt 0:00:30]} 23. Kb1 {[%emt 0:00:30]} a5 {[%emt 0:00:30] [#]} 24. Bxc5 {[%emt 0:00:30] White is more active.} Bxd5 $16 {[%emt 0:00:30] [#]} 25. exd5 $1 {[%emt 0:00:30][%cal Ob4b5]} axb4 {[%emt 0:00:30]} 26. Bxb4 {[%emt 0:00:30] This bishop pair is nice.} Qb6 {[%emt 0:00:30]} 27. Rg3 {[%emt 0:00:30]} f5 {[%emt 0:00:30]} (27... g6 $14) 28. g6 $2 {[%emt 0:00:30]} (28. gxf6 $1 $16 Rxf6 29. Bh3) 28... f4 $17 {[%emt 0:00:30]} (28... Bxh4 29. Qh2 Qd4 30. Bxb5 $14 (30. Rd3 Qf2 $14)) 29. Bh3 $2 {[%emt 0:00:30][%mdl 8192]} fxg3 $19 {[%emt 0:00:30]} 30. Qe2 {[%emt 0:00:30] [#]} Rf1+ {[%emt 0:00:30]} 31. Ka2 $2 {[%emt 0:00:30] [#]} (31. Bxf1 Qf2 32. Qxf2 gxf2 33. b3) 31... Qd4 $1 {[%emt 0:00:30]} 32. Be6+ {[%emt 0:00:30]} (32. Bxf1 Qc4+) 32... Kf8 {[%emt 0:00:30] ( -> ...g2)} 33. Qxf1+ {[%emt 0:00:30]} Qf4 {[%emt 0:00:30]} 34. Qd1 {[%emt 0:00:30] [#]} g2 $1 {[%emt 0:00:30]} 35. Bh3 {[%emt 0:00:30][%cal Be6h3,Bh3f1,Bf1b5][%mdl 32]} Qc4+ {[%emt 0:00:30]} 36. Ka1 {[%emt 0:00:30]} Qf1 {[%emt 0:00:30]} ({Better is} 36... Qxc2 $19 37. Qf3+ Bf6 38. Bxd6+ Ke8 39. Bxg2 (39. Qg4 $2 g1=Q+ 40. Qxg1 e4 $19) 39... Qc1+ 40. Ka2 Rc2) 37. Qxf1+ $15 {[%emt 0:00:30]} gxf1=Q+ {[%emt 0:00:30]} 38. Bxf1 {[%emt 0:00:30]} Rxc2 {[%emt 0:00:30]} 39. Bxb5 {[%emt 0:00:30][%mdl 4096] Endgame KRB-KB} e4 {[%emt 0:00:30]} (39... Rh2 $15) 40. Kb1 $2 {[%emt 0:00:30] [#]} (40. a4 $1 $11 {and White is okay.}) 40... Rg2 $1 $19 {[%emt 0:00:30]} 41. a4 {[%emt 0:00:30]} Bf6 $2 {[%emt 0:00:30]} (41... Rxg6 $17 {and life is bright.} 42. h5 Rg2) 42. Bxd6+ $16 {[%emt 0:00:30]} Kg8 {[%emt 0:00:30]} 43. Bc5 {[%emt 0:00:30] Strongly threatening d6.} Rxb2+ {[%emt 0:00:30]} 44. Kc1 {[%emt 0:00:30] Threatens to win with d6.} Rb3 {[%emt 0:00:30] Hoping for ...Rc3+.} 45. Kd2 {[%emt 0:00:30] d6 is the strong threat.} Rc3 $2 {[%emt 0:00:30] [#]} (45... Bd8 $16 {might work better.}) 46. Bd6 $2 {[%emt 0:00:30] Weighted Error Value: White=0.58/Black=0.50} (46. Bb6 $1 $18) 1-0

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.9"]
[White "Hari Madhavan N B"]
[Black "Prasannaa.s"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "2374"]
[BlackElo "2164"]
[Annotator "TA"]
[PlyCount "27"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,27,0,-5,-46,-32,-34,-38,-73,-59,-80,-81,-79,-79,-120,-120,-161,-164,-166,-123,-165]} 1. d4 {[%emt 0:00:03]} Nf6 {[%emt 0:04:41]} 2. c4 {[%emt 0:00:07]} g6 {[%emt 0:00:45]} 3. h4 {[%emt 0:00:05]} Bg7 {[%emt 0:03:24]} 4. Nc3 {[%emt 0:00:06]} d5 {[%emt 0:04:02]} 5. cxd5 {[%emt 0:00:08]} Nxd5 {[%emt 0:00:06][%cal Oc7c5]} 6. h5 {[%emt 0:00:22] E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3.} c5 $1 {[%emt 0:05:21]} 7. Nf3 {[%emt 0:19:22]} Nc6 {[%emt 0:01:12][%cal Rc5d4]} 8. h6 {[%emt 0:04:34] [#] Black is slightly better.} Bf6 {[%emt 0:00:33] Hoping for ...Nxc3.} ({Don't do} 8... Bxd4 9. Nxd5 Qxd5 10. e3 $16) 9. Ne4 {[%emt 0:01:28]} cxd4 {[%emt 0:00:33] [#]} ({Much weaker is} 9... Nxd4 $6 10. Nxd4 cxd4 11. Nxf6+ Nxf6 12. e3 $11) 10. Nxf6+ $146 {[%emt 0:00:05]} ({Predecessor:} 10. b4 Ncxb4 11. Bb2 Qa5 12. Nfd2 Nc3 13. Nxf6+ exf6 14. Qb3 Be6 {0-1 (14) Erigaisi,A (2563)-Vakhidov,D (2177) Chess.com INT 2020}) 10... Nxf6 {[%emt 0:00:16]} 11. Rh4 {[%emt 0:02:34][%cal Rf3d4]} Bg4 {[%emt 0:04:57]} 12. Nh2 {[%emt 0:01:50] [#]} Be6 {[%emt 0:10:39]} 13. Nf3 {[%emt 0:02:23][%cal Rf3d4]} Qa5+ {[%emt 0:01:44]} 14. Qd2 {[%emt 0:08:42] Weighted Error Value: White=0.19 (very precise) /Black=0.04 (flawless)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.10"]
[White "Vignesh B"]
[Black "Gusain, Himal"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2072"]
[BlackElo "2396"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,83,45,48,12,10,6,18,-5,0,-8,-10,2,10,6,9,0,20,19,17,-4,-18,-8,-8,-5,-13,0,0,-12,0,-47,-55,-58,-35,-41,-44,-41,-51,-51,-34,-31,-49,-100,-68,-133,-149,-139,-150,-129,-89,-94,-93,-106,-85,-79,-54,-55,-56,-54,-67,-195,-190,-204,-203,-302,-279,-343,-329,-442,-441,-397,-358,-390,-385,-947,-904,-1229]} 1. Nf3 {[%emt 0:00:04]} d5 {[%emt 0:04:46]} 2. b3 {[%emt 0:00:07]} c5 {[%emt 0:00:22]} 3. Bb2 {[%emt 0:00:05]} f6 {[%emt 0:00:06]} 4. e3 {[%emt 0:00:36]} Nc6 {[%emt 0:00:07]} 5. d4 {[%emt 0:00:20]} Bg4 {[%emt 0:00:22]} 6. Nbd2 {[%emt 0:01:59] A06: Réti Opening: 1 Nf3 d5.} cxd4 {[%emt 0:03:25]} 7. exd4 {[%emt 0:00:13]} e6 {[%emt 0:00:04]} 8. Bb5 {[%emt 0:09:15] [#] The position is equal.} a6 $146 {[%emt 0:04:55]} ({Predecessor:} 8... Bd6 9. O-O Nge7 10. Re1 O-O 11. h3 Bxf3 12. Nxf3 Qd7 13. Qe2 a6 14. Bxc6 Nxc6 15. Qxe6+ Qxe6 16. Rxe6 {½-½ (39) Korcz,S-Holczbauer,F (1696) Hungary 2010}) 9. Bxc6+ {[%emt 0:00:50]} bxc6 {[%emt 0:00:05]} 10. Qe2 {[%emt 0:01:04]} Qd7 {[%emt 0:00:41]} 11. h3 {[%emt 0:03:39]} Bh5 {[%emt 0:02:05]} 12. O-O-O {[%emt 0:11:17]} Bd6 {[%emt 0:00:49]} 13. g4 {[%emt 0:02:31]} Bf7 {[%emt 0:00:08]} 14. Ne1 {[%emt 0:00:15]} Ne7 {[%emt 0:00:10]} 15. Nd3 {[%emt 0:00:21]} Ng6 {[%emt 0:00:55] Against f4} 16. h4 Nf4 {[%emt 0:00:30]} 17. Nxf4 Bxf4 {[%emt 0:00:30]} 18. Ba3 a5 {[%emt 0:00:30]} 19. Kb2 (19. Bc5 $11 {is more appropriate.}) 19... a4 $15 {[%emt 0:00:30]} 20. Bc5 {[%cal Og4g5]} axb3 {[%emt 0:00:30]} (20... Bd6 $5 {[%cal Re8g8]}) 21. axb3 {[#] Hoping for Ra1.} Bd6 $1 {[%emt 0:00:30] This bishop pair is nice.} 22. Ra1 O-O {[%emt 0:00:30]} 23. Bxd6 Qxd6 {[%emt 0:00:30]} 24. Qe3 e5 {[%emt 0:00:30]} 25. Nf3 ({White should play} 25. dxe5 $15 fxe5 26. f3) 25... Rae8 $17 {[%emt 0:00:30]} 26. dxe5 ({Better is} 26. Qc3 $15) 26... fxe5 {[%emt 0:00:30] Threatens to win with ...d4.} 27. Ng5 e4 {[%emt 0:00:30]} 28. Rhd1 h6 {[%emt 0:00:30]} 29. Nxf7 Rxf7 {[%emt 0:00:30]} 30. Ra6 Qf6+ {[%emt 0:00:30]} 31. Qc3 Rc8 {[%emt 0:00:30]} ({Reject} 31... Qxf2 32. Qxc6 Qf6+ 33. Qxf6 gxf6 34. Rxd5 $11) 32. Qxf6 Rxf6 $15 {[%emt 0:00:30][%mdl 4096] Endgame KRR-KRR} 33. Rd2 $1 Rf4 {[%emt 0:00:30]} 34. Kc3 {This move loses the game for White.} (34. g5 $1 $15) 34... Rxg4 $19 {[%emt 0:00:30]} 35. Kd4 Rxh4 {[%emt 0:00:30][%cal Bg4h4,Bh4h3,Bh3f3][%mdl 32]} 36. Kc5 (36. c4 {was worth a try.}) 36... Rh3 {[%emt 0:00:30]} 37. Kd6 Rf3 {[%emt 0:00:30]} 38. Kd7 Rcf8 {[%emt 0:00:30]} 39. Kxc6 R8f6+ {[%emt 0:00:30]} 40. Kb7 Rxf2 {[%emt 0:00:30]} 41. Rxf2 {[#]} (41. Rxd5 Rf7+ 42. Kb6) 41... Rxf2 {[%emt 0:00:30]} 42. c3 {Weighted Error Value: White=0.31/Black=0.05 (flawless)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.11"]
[White "Ravichandran, Siddharth"]
[Black "Ghosh Samriddhaa"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2352"]
[BlackElo "1844"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 13,85,18,30,32,33,30,29,27,27,32,29,30,31,31,29,20,45,31,52,0,0,0,17,-16,76,70,79,86,72,75,136,3,67,57,190,190,180,198,191,182,275,279,283,305,295,239,251,251,250,193,185,0,239,182,250,229,315,222,413,408,408,387,604,354,590,575,575,402,784,784,779,775,5406,5127]} 1. b3 {[%emt 0:00:12]} e5 {[%emt 0:00:42]} 2. Bb2 {[%emt 0:00:09]} Nc6 {[%emt 0:00:46]} 3. e3 {[%emt 0:00:30]} d5 {[%emt 0:04:25]} 4. Bb5 {[%emt 0:00:12]} Bd6 {[%emt 0:01:26]} 5. f4 {[%emt 0:00:36]} Qh4+ {[%emt 0:01:27]} 6. g3 {[%emt 0:00:09]} Qe7 {[%emt 0:00:11]} 7. Nf3 {[%emt 0:00:26]} Bg4 {[%emt 0:07:36]} 8. fxe5 {[%emt 0:04:14] A01: Nimzowitsch-Larsen Opening.} (8. Bxe5 {seems wilder.} Bxe5 9. fxe5 O-O-O 10. Bxc6 bxc6 11. Nc3) 8... Bxe5 {[%emt 0:01:27]} 9. Bxe5 {[%emt 0:01:09]} Bxf3 {[%emt 0:00:21][%mdl 64] [#] Remove Defender} 10. Qxf3 {[%emt 0:00:08] White has an edge.} Qxe5 {[%emt 0:00:11]} 11. Nc3 {[%emt 0:00:19]} Nf6 {[%emt 0:02:11]} 12. O-O-O {[%emt 0:04:43]} O-O {[%emt 0:07:47]} 13. d4 {[%emt 0:01:17] [#]} Qd6 $146 {[%emt 0:04:16] Strongly threatening ...Qa3+.} ({Predecessor:} 13... Qe6 14. Rhe1 a6 15. Bd3 Nb4 16. Bf5 Qd6 17. g4 g6 18. g5 Nh5 19. Bg4 Qxh2 {1-0 (30) Stolz,S (2316)-Hughes,C (830) LSS email 2015}) 14. Kb2 {[%emt 0:00:53] Prevents Qa3+.} Rae8 {[%emt 0:03:25]} (14... a5 {is more complex.} 15. a3 a4 16. Nxa4 Ne4) 15. g4 {[%emt 0:12:13]} Qe6 {[%emt 0:19:11][%csl LRe3,LRg4]} 16. Rde1 {[%emt 0:06:45]} (16. Rhe1 $14) 16... a6 $11 {[%emt 0:09:25]} 17. Bd3 {[%emt 0:05:34] next Bf5 is good for White.} Qxg4 {[%emt 0:06:29]} 18. Qf2 {[%emt 0:05:47]} Ne4 {[%emt 0:02:12]} (18... Qe6 $11) 19. Bxe4 $16 {[%emt 0:04:09]} dxe4 {[%emt 0:02:26]} 20. Rhg1 {[%emt 0:00:09]} Qf3 {[%emt 0:03:09]} 21. Qh4 {[%emt 0:03:47]} Ne7 {[%emt 0:05:27]} (21... g6 $2 22. Nd5 Re6 23. Nf4 $18) (21... f6 $142) 22. Qg5 {[%emt 0:03:52] White is more active.} ({But not} 22. Qxe4 $6 Qxe4 23. Nxe4 Nd5 $11) ({White must play} 22. Nxe4 $16 Ng6 {[#]} 23. Qxh7+ $3 {[%mdl 512]} Kxh7 24. Ng5+ Kg8 25. Nxf3) 22... Ng6 {[%emt 0:03:12]} (22... g6 $1 $11) 23. Rg3 $1 $40 {[%emt 0:06:47][%mdl 128] White attacks.} Qf6 {[%emt 0:01:57]} ({Better is} 23... h6 $14 24. Qd5 c6) 24. Qxf6 $18 {[%emt 0:01:36]} gxf6 {[%emt 0:00:02]} 25. Nd5 {[%emt 0:00:13][%csl LRc7,LRf6]} Kg7 {[%emt 0:07:07]} 26. Nxc7 {[%emt 0:00:55]} Rc8 {[%emt 0:01:40]} (26... Rd8 $142) 27. Nd5 {[%emt 0:00:11]} b5 {[%emt 0:00:46]} 28. Rf1 {[%emt 0:01:53]} Rc6 {[%emt 0:01:19]} 29. h4 {[%emt 0:08:44] h5 is the strong threat.} h5 {[%emt 0:01:21]} 30. Rf5 {[%emt 0:05:34]} Rh8 {[%emt 0:00:35]} 31. Rf2 {[%emt 0:02:22]} Rd8 {[%emt 0:02:46]} 32. Rf5 {[%emt 0:00:15]} (32. Nc3 $142) 32... Rh8 $1 {[%emt 0:00:04]} 33. c3 {[%emt 0:04:19]} Rh6 {[%emt 0:00:47]} (33... Kf8 $142 34. Nxf6 (34. Rxf6 Rxf6 35. Nxf6 Nxh4 $16) 34... Nxh4) 34. Rf2 {[%emt 0:02:34] And now Ne7 would win.} Re6 {[%emt 0:00:43] Inhibits Ne7.} 35. Nc7 {[%emt 0:00:51]} Rc6 $2 {[%emt 0:00:31]} (35... f5 {was called for.} 36. Nxe6+ fxe6) 36. Ne8+ {[%emt 0:00:17]} Kf8 {[%emt 0:00:06]} 37. Nxf6 {[%emt 0:00:08]} Nxh4 {[%emt 0:00:56]} (37... Ne7 $142) 38. Rg8+ {[%emt 0:00:31]} Ke7 {[%emt 0:00:20]} 39. Re8+ {[%emt 0:00:17]} Kd6 {[%emt 0:00:02]} 40. Rxe4 {[%emt 0:01:34]} Kc7 {[%emt 0:01:06]} (40... Ng6 $142 41. Re8 Rh8 42. Rxh8 Nxh8 43. Nxh5 Ke7) 41. Nd5+ {[%emt 0:01:14] White is clearly winning.} Kd6 {[%emt 0:00:16]} 42. Nb4 {[%emt 0:00:23]} Ng6 {[%emt 0:00:49]} 43. Rf6+ {[%emt 0:00:09] Weighted Error Value: White=0.31/Black=0.40} 1-0

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.12"]
[White "Daakshin Arun"]
[Black "Karthikeyan, P.."]
[Result "1-0"]
[ECO "E52"]
[WhiteElo "2016"]
[BlackElo "2361"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 15,71,-7,-3,-10,-2,-2,4,-10,30,-13,-10,-13,-19,-16,0,0,0,0,0,0,0,0,0,-15,-10,-15,-16,-54,20,0,0,0,0,0,0,0,0,0,0,0,0,-54,-55,-67,-64,-56,-28,-37,-40,-46,0,0,279,281,277,285,29995,29996]} 1. d4 {[%emt 0:00:08]} Nf6 {[%emt 0:00:05]} 2. c4 {[%emt 0:00:07]} e6 {[%emt 0:00:27]} 3. Nc3 {[%emt 0:00:05]} Bb4 {[%emt 0:00:06]} 4. Bd2 {[%emt 0:00:16]} d5 {[%emt 0:05:06]} 5. e3 {[%emt 0:00:21]} O-O {[%emt 0:00:48]} 6. Nf3 {[%emt 0:00:38]} b6 {[%emt 0:01:42]} 7. cxd5 {[%emt 0:01:07]} exd5 {[%emt 0:00:14]} 8. Bd3 {[%emt 0:00:35]} Bb7 {[%emt 0:01:52]} 9. Ne5 {[%emt 0:01:16] E52: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5 6 Bd3 b6.} Bd6 {[%emt 0:01:39]} 10. O-O {[%emt 0:01:27]} c5 {[%emt 0:00:14]} 11. Rc1 {[%emt 0:03:09] The position is equal.} a6 {[%emt 0:12:30] [#]} 12. a4 $146 {[%emt 0:08:49]} ({Predecessor:} 12. f4 Nc6 13. Ng4 Nxg4 14. Qxg4 cxd4 15. Nxd5 dxe3 16. Bc3 Be5 17. fxe5 Qxd5 18. Be4 Qe6 {1-0 (32) Bluebaum,M (2673)-Tregubov,P (2543) Chess.com INT 2022}) 12... Nc6 {[%emt 0:08:45]} 13. Nxc6 {[%emt 0:07:02]} Bxc6 {[%emt 0:04:23]} 14. b3 {[%emt 0:04:44] Inhibits c4.} Qe7 {[%emt 0:01:09]} 15. Qe2 {[%emt 0:05:07]} Qb7 {[%emt 0:00:44]} 16. f3 {[%emt 0:03:41]} Qb8 {[%emt 0:06:07] White must now prevent ...cxd4.} 17. g3 {[%emt 0:02:49]} Re8 {[%emt 0:04:33]} 18. Qf2 {[%emt 0:02:30]} Nd7 {[%emt 0:01:21]} 19. Ne2 {[%emt 0:08:24]} b5 {[%emt 0:05:02]} 20. e4 {[%emt 0:04:40]} c4 {[%emt 0:01:50]} 21. Bb1 {[%emt 0:02:09]} f6 {[%emt 0:09:51]} ({Black should play} 21... Ba3 $1 $15 22. Rc2 Qd6) 22. axb5 {[%emt 0:05:09]} axb5 {[%emt 0:04:56]} 23. exd5 {[%emt 0:03:36]} Bxd5 {[%emt 0:00:36]} 24. Nc3 $1 {[%emt 0:02:43]} Bf7 {[%emt 0:00:32]} 25. bxc4 $1 {[%emt 0:04:43]} Bxc4 {[%emt 0:00:16]} 26. Rfe1 {[%emt 0:01:01]} Nb6 {[%emt 0:07:05]} 27. Be4 {[%emt 0:03:24]} b4 {[%emt 0:04:52]} 28. Nd1 {[%emt 0:04:13]} ({White should try} 28. Bxa8 $11 bxc3 29. Rxe8+ Qxe8 30. Be4 cxd2 31. Qxd2) 28... Bd5 {[%emt 0:00:40]} 29. Qe2 {[%emt 0:06:49]} Bf7 {[%emt 0:10:20] [#] And now ...f5 would win.} 30. Ne3 {[%emt 0:04:05][%cal Bd1e3,Be3f5,Bf5h6][%mdl 32]} Ra2 {[%emt 0:01:35]} 31. Qd3 $1 {[%emt 0:01:41]} Kh8 {[%emt 0:02:21]} 32. Nf5 $1 {[%emt 0:01:49]} Bc4 {[%emt 0:02:12]} 33. Rxc4 $11 {[%emt 0:00:44]} Nxc4 {[%emt 0:00:02][%mdl 8192]} (33... Rxd2 $1 $11 {and Black is okay.} 34. Qxd2 Nxc4) 34. Qxc4 $18 {[%emt 0:00:18]} Rxd2 {[%emt 0:00:24]} 35. Qf7 {[%emt 0:00:31][%csl Gf5][%cal Rf7g7] Chess con chili.} Bf8 {[%emt 0:01:53] [#]} (35... Rg8 $18 36. Bd5 Bc7) 36. Nh6 $1 {[%emt 0:00:12][%mdl 512] Weighted Error Value: White=0.07 (flawless) /Black=0.45} 1-0

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.13"]
[White "Ramnathan, Balasubramaniam"]
[Black "Laxman, R.R."]
[Result "0-1"]
[ECO "C88"]
[WhiteElo "2119"]
[BlackElo "2420"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 27,90,-10,0,-15,0,-11,0,-18,-24,-25,-23,-33,-25,-31,-24,-15,-14,-15,-15,-10,-6,-1,0,0,0,0,0,-60,-62,-114,-112,-112,-98,-109,-110,-102,-73,-113,-109,-127,-115,-132,-99,-118,-103,-113,-113,-202,-215,-217,-186,-210,-206,-189,-181,-234,-184,-318,-195,-308,-276,-1124,-1014,-2282,-2183]} 1. e4 {[%emt 0:00:10]} e5 {[%emt 0:00:06]} 2. Nf3 {[%emt 0:00:12]} Nc6 {[%emt 0:00:13]} 3. Bb5 {[%emt 0:00:17][%cal Bf1b5,Bb5a4,Ba4b3,Bb3a2][%mdl 32]} a6 {[%emt 0:00:11]} 4. Ba4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:05]} 5. O-O {[%emt 0:00:23]} Be7 {[%emt 0:00:14]} 6. Re1 {[%emt 0:00:26]} b5 {[%emt 0:00:11]} 7. Bb3 {[%emt 0:00:07]} O-O {[%emt 0:00:07]} 8. a4 {[%emt 0:00:36]} Bb7 {[%emt 0:01:14]} 9. Nc3 {[%emt 0:00:35]} d6 {[%emt 0:01:03]} 10. d3 {[%emt 0:00:58]} Na5 {[%emt 0:00:10]} 11. Ba2 {[%emt 0:00:30]} b4 {[%emt 0:00:33]} 12. Ne2 {[%emt 0:00:51]} c5 {[%emt 0:00:25]} 13. Ng3 {[%emt 0:00:22]} Bc8 {[%emt 0:00:55]} 14. Bd2 {[%emt 0:04:14] 14.c3 is the modern continuation.} Rb8 {[%emt 0:01:35]} 15. h3 {[%emt 0:03:12] C88: Closed Ruy Lopez: Anti-Marshall Systems.} Be6 {[%emt 0:02:47]} 16. Bxe6 {[%emt 0:07:20]} fxe6 {[%emt 0:00:05]} 17. Ng5 {[%emt 0:05:45] The position is equal.} Qd7 {[%emt 0:00:51]} 18. f4 {[%emt 0:00:52]} exf4 {[%emt 0:01:47]} 19. Bxf4 {[%emt 0:00:05]} Nc6 {[%emt 0:01:49]} 20. Be3 {[%emt 0:02:40]} h6 {[%emt 0:03:18]} 21. Nf3 {[%emt 0:00:05] [#]} d5 $146 {[%emt 0:03:23]} ({Predecessor:} 21... Qe8 22. c3 bxc3 23. bxc3 Ne5 24. Nxe5 dxe5 25. Qc2 Qc6 26. c4 Rb7 27. Bd2 Rfb8 {0-1 (45) Chilchenko,N-Gutop,Y (2509) ICCF corr 1984}) 22. Bf4 {[%emt 0:12:15]} Rbe8 {[%emt 0:01:08][%cal Of6e4]} 23. Ne5 {[%emt 0:00:36]} Nxe5 {[%emt 0:00:14]} 24. Bxe5 {[%emt 0:00:08]} Bd6 $36 {[%emt 0:03:05][%mdl 2048] White is under pressure.} 25. Bxd6 {[%emt 0:06:11]} (25. exd5 {looks sharper.} exd5 26. Bxd6 Qxd6 27. Nf5) 25... Qxd6 {[%emt 0:03:27]} 26. e5 {[%emt 0:03:49]} Qc7 {[%emt 0:00:06]} 27. Nh5 {[%emt 0:18:19]} (27. exf6 $11 Qxg3 28. Qh5) 27... Nd7 $15 {[%emt 0:06:40]} 28. Re3 {[%emt 0:14:52]} ({White should try} 28. Qg4 $15 Re7 29. Nf6+ Nxf6 30. exf6 Rxf6 31. Rf1) 28... Rf5 $17 {[%emt 0:02:46]} (28... Nxe5 29. Qe1 Nc6 30. Rxe6) 29. Qe2 {[%emt 0:04:36]} Rxe5 {[%emt 0:01:10]} ({Much weaker is} 29... Nxe5 $6 30. Ng3 Rg5 31. h4 $11) 30. Re1 {[%emt 0:00:10][%cal Re3e5]} Rxe3 {[%emt 0:00:25]} 31. Qxe3 {[%emt 0:00:08]} Qd6 {[%emt 0:01:41]} 32. Qf3 {[%emt 0:00:39]} Re7 {[%emt 0:02:43]} (32... a5 {is more complex.} 33. b3 Kh7 34. Qf7 Re7) 33. c3 {[%emt 0:01:12]} bxc3 {[%emt 0:01:59]} 34. bxc3 {[%emt 0:00:04]} e5 {[%emt 0:01:28]} 35. Qg4 {[%emt 0:00:17]} Qe6 {[%emt 0:01:34]} 36. Qh4 {[%emt 0:01:08]} Rf7 {[%emt 0:01:58] Against Nf4} 37. d4 {[%emt 0:01:55]} (37. c4 $17 {was called for.}) 37... cxd4 {[%emt 0:00:08]} 38. cxd4 {[%emt 0:00:09]} Qb6 {[%emt 0:00:15]} 39. Rd1 {[%emt 0:00:56]} Qb3 {[%emt 0:06:14]} 40. Qg4 {[%emt 0:00:41]} Qxa4 {[%emt 0:00:45]} 41. Kh2 {[%emt 0:01:42]} (41. dxe5 $142 Qxg4 42. hxg4 Nxe5 43. Rxd5 Nxg4 44. Rd4) 41... Qc6 {[%emt 0:04:13]} 42. Rd3 {[%emt 0:03:04]} (42. dxe5 $142 Nxe5 43. Qd4) 42... exd4 {[%emt 0:02:12]} 43. Rg3 {[%emt 0:00:57]} (43. Qxd4 $142 Qc7+ 44. Kg1) 43... Nf6 $19 {[%emt 0:03:09]} 44. Qg6 {[%emt 0:06:51] [#]} (44. Nxf6+ Qxf6 45. Ra3) 44... Qc7 $1 {[%emt 0:00:01]} 45. h4 {[%emt 0:00:55]} (45. Qf5 Ne4) 45... Ne4 {[%emt 0:01:03] Weighted Error Value: White=0.68/Black=0.10 (very precise)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.14"]
[White "Nguyen, Thanh Thuy Tien"]
[Black "Nguyen, Van Huy"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "1996"]
[BlackElo "2405"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 21,120,-22,21,-40,38,40,27,15,116,118,197,-35,-20,-20,-19,-20,-20,-12,-6,-3,62,74,60,64,65,34,38,0,0,0,0,0,0,0,0,-64,-64,-81,-95,-102,-80,-87,-89,-80,-38,-38,-38,-38,-38,-39,-39,-44,-15,-175,-45,-138,-95,-104,-101,-118,-101,-259,-261,-321,-322,-382,-310,-506,-437,-1078,-1078,-1078,-964,-887,-155,-155,-155,-155,-155,-245,-128,-29968,-245,-29968,-29970,-29967,-29967,-29976,-29977,-29979,-29980,-29980,-29980,-29980,-29981,-29981,-29982,-29979,-29979,-29978,-29977]} 1. e4 {[%emt 0:00:07]} c6 {[%emt 0:00:36]} 2. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:07]} 3. Nc3 {[%emt 0:00:11]} dxe4 {[%emt 0:00:25]} 4. Nxe4 {[%emt 0:00:09]} Bf5 {[%emt 0:00:05]} 5. Ng3 {[%emt 0:00:15]} Bg6 {[%emt 0:00:06]} 6. h4 {[%emt 0:00:09]} h6 {[%emt 0:00:06]} 7. Nf3 {[%emt 0:00:17]} e6 {[%emt 0:01:28]} 8. h5 {[%emt 0:01:56]} Bh7 {[%emt 0:00:06]} 9. Bd3 {[%emt 0:00:10]} Bxd3 {[%emt 0:00:07]} 10. Qxd3 {[%emt 0:00:05]} Nf6 {[%emt 0:00:33]} 11. Bd2 {[%emt 0:00:49]} c5 {[%emt 0:00:31]} 12. c4 {[%emt 0:10:54] B19: Classical Caro-Kann: 4...Bf5 main line.} (12. O-O-O $11) 12... Nc6 {[%emt 0:06:36] [#]} ({Black should try} 12... cxd4 $15 13. Qxd4 Nc6) 13. d5 $146 {[%emt 0:02:47]} ({Predecessor:} 13. Bc3 cxd4 14. Nxd4 e5 15. Qe3 Nxd4 16. O-O-O Ng4 17. Qe4 Qg5+ 18. f4 Qxf4+ 19. Qxf4 exf4 20. Rxd4 {0-1 (34) Horn,E (2046)-Molchanova,T (2298) Izmir 2004}) 13... exd5 {[%emt 0:08:24]} 14. O-O-O {[%emt 0:04:39] White has an edge.} Be7 {[%emt 0:11:02]} (14... Bd6 $1 $11 {keeps the balance.}) 15. Nf5 $16 {[%emt 0:01:36]} O-O {[%emt 0:05:42] [#]} (15... Kf8 $16) 16. N3h4 $2 {[%emt 0:30:47]} ({Only move:} 16. Bxh6 $1 $18 {[%mdl 512]} gxh6 (16... Ne8 17. Nxe7+) 17. Kb1) 16... Ne4 {[%emt 0:08:11]} (16... Nd4 $5 {[%cal Rf6g4]} 17. Rde1 Bd6 $11) 17. cxd5 {[%emt 0:18:39]} Nxd2 {[%emt 0:02:24]} 18. Nxe7+ {[%emt 0:06:39]} Nxe7 {[%emt 0:06:20]} 19. d6 {[%emt 0:01:54] [#]} Nc6 $1 {[%emt 0:02:44][%cal Oc6d4]} 20. Rxd2 {[%emt 0:00:54]} Qf6 {[%emt 0:00:36]} (20... Re8 $11) 21. Qf5 $1 $14 {[%emt 0:02:07]} Qe6 {[%emt 0:18:02]} 22. Qxe6 {[%emt 0:02:08]} ({Much worse is} 22. Qxc5 Qxa2 23. Qa3 Qe6 $11) 22... fxe6 {[%emt 0:01:26]} 23. Ng6 {[%emt 0:02:09]} Rf5 {[%emt 0:00:49]} 24. f4 {[%emt 0:04:17]} Rd8 $1 {[%emt 0:01:45]} 25. g4 {[%emt 0:02:12]} Rd5 {[%emt 0:00:40]} 26. Rxd5 {[%emt 0:00:16]} exd5 $11 {[%emt 0:00:02][%mdl 4096] Endgame KRN-KRN} 27. Re1 {[%emt 0:00:51]} Kf7 $1 {[%emt 0:01:18]} (27... Rxd6 $2 28. Re8+ Kf7 29. Rf8+ Ke6 30. f5+ Kd7 31. Rf7+ Ke8 32. Rf8+ (32. Rxb7 Rd7 $16) 32... Kd7 33. Rf7+ Ke8 34. Rxg7 $18) 28. Ne5+ {[%emt 0:05:06]} (28. g5 $11) 28... Nxe5 $15 {[%emt 0:00:34]} 29. fxe5 {[%emt 0:00:30] Strongly threatening e6+. KR-KR} Ke6 {[%emt 0:00:07]} 30. Rf1 {[%emt 0:00:04]} Kxe5 {[%emt 0:01:14]} (30... c4 {looks sharper.} 31. Kc2 b5 32. g5 hxg5 33. Rg1 Rd7) 31. Rf7 {[%emt 0:00:04][%csl LRb7,LRg7]} Rxd6 {[%emt 0:00:48]} 32. Rxg7 {[%emt 0:02:02]} Rb6 {[%emt 0:00:47]} 33. g5 {[%emt 0:00:44]} hxg5 {[%emt 0:00:32]} 34. Rxg5+ {[%emt 0:00:04]} Ke4 {[%emt 0:00:16]} 35. Rg6 {[%emt 0:01:22] Inhibits Rh6. aiming for Rxb6.} Kf5 {[%emt 0:00:11]} 36. Rg7 {[%emt 0:01:28]} a5 {[%emt 0:01:19]} 37. Rd7 $2 {[%emt 0:00:00]} (37. b3 $11) 37... Ke5 {[%emt 0:00:39]} (37... Ke4 $19 {Threatens to win with ...Rh6.} 38. Kc2 Rh6 39. Re7+ Kd4 40. Rxb7 Rxh5) 38. Rh7 {[%emt 0:00:04] Inhibits Rh6.} (38. Rg7 $1 $15) 38... Rb4 {[%emt 0:00:40]} 39. h6 {[%emt 0:00:30]} b5 {[%emt 0:01:39][%cal Bb7b5,Bb5b4][%mdl 32]} 40. Rc7 {[%emt 0:00:53]} Kd6 {[%emt 0:00:52]} 41. h7 $2 {[%emt 0:00:28]} (41. Ra7 $17) 41... Rh4 $19 {[%emt 0:00:11]} 42. Rg7 {[%emt 0:00:06]} c4 {[%emt 0:00:30]} 43. Kd2 {[%emt 0:00:31]} Kc5 {[%emt 0:00:31]} 44. a3 $2 {[%emt 0:00:32]} (44. Ke3 {was necessary.}) 44... b4 {[%emt 0:00:23]} 45. Ra7 {[%emt 0:00:25]} (45. Ke2 $142 bxa3 46. bxa3) 45... bxa3 {[%emt 0:00:47]} 46. Rxa5+ {[%emt 0:00:19]} Kd4 {[%emt 0:00:51]} 47. Rxa3 {[%emt 0:00:39] [#]} Rxh7 $2 {[%emt 0:00:05]} (47... Rh2+ $1 $19 48. Kd1 Rxh7) 48. Rg3 $17 {[%emt 0:00:24]} Rh2+ {[%emt 0:00:12]} 49. Kc1 {[%emt 0:00:04]} Re2 {[%emt 0:00:10] ...Rh2 is the strong threat. Black is more active.} 50. Rc3 {[%emt 0:01:25]} (50. Rh3 $17 {only move.}) 50... Re3 {[%emt 0:00:54]} (50... Ke5 $19 {White must now prevent ...Rh2.} 51. Kb1 Rg2) 51. Rc2 {[%emt 0:00:37][%mdl 8192]} (51. Kd2 $17 Re5 52. Rh3) 51... Re1+ {[%emt 0:00:04]} 52. Kd2 {[%emt 0:00:02] [#]} Rb1 {[%emt 0:00:04] Black mates.} 53. Ke2 {[%emt 0:00:41]} Kc5 {[%emt 0:00:08]} 54. Ke3 {[%emt 0:00:46]} d4+ {[%emt 0:00:08][%cal Bd5d4,Bd4d3][%mdl 32]} 55. Ke4 {[%emt 0:00:30]} Re1+ {[%emt 0:00:24]} 56. Kf3 {[%emt 0:00:08]} d3 {[%emt 0:00:23]} 57. Rh2 {[%emt 0:00:08]} Kb4 {[%emt 0:00:10]} 58. Rd2 {[%emt 0:01:16]} Kb3 {[%emt 0:00:12]} 59. Rh2 {[%emt 0:00:27]} Re2 {[%emt 0:00:17]} 60. Rh4 {[%emt 0:00:11]} Rxb2 {[%emt 0:00:06] Weighted Error Value: White=0.48/Black=0.34} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.15"]
[White "Adireddy Arjun"]
[Black "Rajesh, V A V"]
[Result "0-1"]
[ECO "C76"]
[WhiteElo "1898"]
[BlackElo "2358"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 19,128,6,17,-5,-5,-5,-5,-5,-9,-4,-1,-6,-6,-8,0,0,0,-13,-13,-30,-34,-32,-25,-31,-29,-121,-126,-116,-122,-108,-97,-189,-87,-75,-75,-70,-71,-57,-91,-82,-41,-35,-43,-97,-106,-103,-104,-137,-138,-152,-161,-227,-221,-223,-207,-219,-207,-331,-191,-173,-169,-248,-236,-275,-234,-255,-241,-434,-445,-531,-483,-516,-466,-439,-422,-579,-454,-830,-830,-1185,-1148,-5081,-4395,-4133,-2829,-29956,-29956,-6099,-5081,-1386,-8,-29977,-29978,-29980,-29981,-29981,-29982,-29982,-29983,-29983,-29984,-29985,-29986,-29986,-29987,-29989,-29988,-29989,-29990,-29998,-29999]} 1. e4 {[%emt 0:01:11]} e5 {[%emt 0:00:06]} 2. Nf3 {[%emt 0:00:07]} Nc6 {[%emt 0:00:18]} 3. Bb5 {[%emt 0:00:13]} a6 {[%emt 0:00:16]} 4. Ba4 {[%emt 0:00:05]} d6 {[%emt 0:00:26]} 5. O-O {[%emt 0:00:45]} Bd7 {[%emt 0:00:04]} 6. c3 {[%emt 0:02:16]} g6 {[%emt 0:00:42]} 7. d4 {[%emt 0:01:01]} Bg7 {[%emt 0:00:09]} 8. dxe5 {[%emt 0:02:08]} dxe5 {[%emt 0:01:41]} 9. Be3 {[%emt 0:11:19]} Nf6 {[%emt 0:04:37]} 10. Nbd2 {[%emt 0:00:37]} O-O {[%emt 0:04:00] The main line 10...0-0 scores better than 10...Qe7.} 11. Bxc6 {[%emt 0:11:25] C76: Ruy Lopez: Deferred Steinitz: 5 c3 Bd7 6 d4 g6.} (11. Re1 {is interesting.} Qe7 12. b4 Rfd8 13. Qc2) 11... Bxc6 {[%emt 0:02:21]} 12. Nxe5 {[%emt 0:00:07]} Bxe4 {[%emt 0:01:21]} 13. Nxe4 {[%emt 0:15:03] The position is equal.} (13. Qb3 {with more complications.} Bd5 14. c4 Re8 15. Ndf3) 13... Nxe4 {[%emt 0:00:07]} 14. Qxd8 {[%emt 0:02:23]} Raxd8 {[%emt 0:00:10] [#]} 15. Nc4 $146 {[%emt 0:00:41]} ({Predecessor:} 15. Nf3 Rd5 16. Rfd1 Rfd8 17. Rxd5 Rxd5 18. Re1 f5 19. Ng5 Nxg5 20. Bxg5 h6 21. Be3 {0-1 (40) Aakanksha,H (2230)-Padmini,R (2372) Ahmedabad 2020}) 15... Rd5 {[%emt 0:10:21]} 16. Rfd1 {[%emt 0:03:38]} Rfd8 {[%emt 0:01:22]} 17. Rxd5 {[%emt 0:00:07]} Rxd5 {[%emt 0:00:04]} 18. f3 {[%emt 0:01:38]} Nc5 {[%emt 0:01:47]} 19. Bxc5 {[%emt 0:02:28]} Rxc5 $11 {[%emt 0:00:21][%mdl 4096] Endgame KRB-KRN} 20. Ne3 {[%emt 0:01:19]} Rb5 {[%emt 0:01:33]} 21. Nc4 {[%emt 0:02:44]} Rd5 {[%emt 0:01:35][%cal Bb5d5,Bd5d2,Bd2c2][%mdl 32]} 22. Ne3 {[%emt 0:15:37]} (22. Kf1 $11) 22... Rd2 $1 $17 {[%emt 0:01:39]} 23. Nc4 {[%emt 0:00:04]} Rc2 {[%emt 0:04:08]} 24. Rd1 {[%emt 0:00:06]} b5 {[%emt 0:23:45]} 25. Rd8+ {[%emt 0:00:59]} Bf8 {[%emt 0:00:11]} 26. Ne5 {[%emt 0:00:40] [#] And now Nd7 would win.} Kg7 $1 {[%emt 0:00:45]} 27. Rd7 {[%emt 0:00:44][%csl LRc7,LRf7]} Bc5+ {[%emt 0:07:42]} 28. Kf1 {[%emt 0:00:07]} Rf2+ {[%emt 0:00:51]} 29. Ke1 {[%emt 0:00:09]} Rxb2 {[%emt 0:01:58]} 30. Rxf7+ {[%emt 0:06:29]} Kg8 {[%emt 0:00:14]} 31. Rd7 {[%emt 0:04:09]} (31. Rxc7 $15 Bd6 32. Rc8+ Kg7 33. Ng4) 31... Rxg2 {[%emt 0:08:03]} 32. Ng4 {[%emt 0:01:20] [#]} Kf8 $1 {[%emt 0:00:30]} ({Reject} 32... Rxa2 $6 33. Nf6+ Kf8 34. Nxh7+ Kg8 35. Nf6+ Kf8 36. Nh7+ Kg8 37. Nf6+ Kf8 38. Nh7+ $11) 33. Rxh7 {[%emt 0:01:53]} Bd6 {[%emt 0:02:03] Black is more active.} ({And not} 33... Rxa2 34. Rxc7 Bd6 35. Rd7 $15) 34. h4 {[%emt 0:03:37]} Rxa2 {[%emt 0:01:13]} 35. Nf6 {[%emt 0:03:26]} (35. Kd1 {keeps fighting.}) 35... Rh2 $19 {[%emt 0:02:37] Strongly threatening ...Be5.} 36. Nd7+ {[%emt 0:03:41]} Ke8 {[%emt 0:00:15]} 37. Nf6+ {[%emt 0:00:11]} Kd8 {[%emt 0:00:06]} 38. Rh6 {[%emt 0:01:41]} (38. Ne4 {was worth a try.}) 38... Rxh4 {[%emt 0:11:14]} 39. Rxg6 {[%emt 0:00:13]} a5 {[%emt 0:00:43]} 40. Ne4 {[%emt 0:00:30]} (40. Ke2 $142) 40... Be7 {[%emt 0:00:26]} 41. Ra6 {[%emt 0:00:30]} a4 {[%emt 0:03:51]} 42. Ke2 {[%emt 0:00:47][%cal Oc3c4]} a3 {[%emt 0:02:03] Threatens to win with ...Kc8.} 43. Ke3 $2 {[%emt 0:00:45]} (43. Ra5) 43... Kc8 {[%emt 0:01:10]} 44. f4 {[%emt 0:00:53]} Kb7 {[%emt 0:01:01] Inhibits Ra8.} 45. Rg6 {[%emt 0:01:16]} Rh1 {[%emt 0:03:11] aiming for ...a2.} 46. Rg2 {[%emt 0:00:14]} Kc6 {[%emt 0:00:00]} ({Avoid the trap} 46... c5 $2 47. Rg7 Re1+ 48. Kf3 $19) 47. Kd4 {[%emt 0:02:01]} Rf1 {[%emt 0:00:00]} 48. Ke5 {[%emt 0:00:29]} (48. Kd3 $142) 48... Bd6+ {[%emt 0:00:00]} 49. Nxd6 {[%emt 0:00:26]} cxd6+ {[%emt 0:00:00][%cal Bc7d6,Bd6d5][%mdl 32] KR-KR} 50. Ke4 {[%emt 0:00:02]} Kc5 {[%emt 0:01:38]} 51. Ra2 {[%emt 0:00:05]} d5+ {[%emt 0:00:11]} 52. Ke3 {[%emt 0:01:11]} b4 {[%emt 0:00:18]} 53. cxb4+ {[%emt 0:00:05]} Kxb4 {[%emt 0:00:11] ( -> ...Kb3)} 54. Rd2 {[%emt 0:00:05]} Kc3 $2 {[%emt 0:01:33]} (54... Re1+ $19 55. Kf2 Re4) 55. Rxd5 $2 {[%emt 0:00:06][%mdl 8192] White does not recover from this.} (55. Rd3+ $11 Kb4 56. Rd4+ Kc5 57. Ra4 d4+ 58. Ke4 Re1+ 59. Kd3 Re3+ 60. Kc2 Rc3+ 61. Kd2) 55... a2 {[%emt 0:00:22] Black mates.} 56. Ra5 {[%emt 0:00:47]} a1=Q {[%emt 0:00:24]} 57. Rxa1 {[%emt 0:00:04]} Rxa1 {[%emt 0:00:06] KR-KP} 58. Ke4 {[%emt 0:00:11]} Kc4 {[%emt 0:00:18]} 59. Ke5 {[%emt 0:00:08]} Kc5 {[%emt 0:00:48]} 60. f5 {[%emt 0:00:10]} Re1+ {[%emt 0:00:15]} 61. Kf6 {[%emt 0:00:34]} Kd6 {[%emt 0:00:12]} 62. Kg7 {[%emt 0:00:16]} Rf1 {[%emt 0:00:13]} 63. f6 {[%emt 0:00:04]} Ke6 {[%emt 0:00:05]} 64. Kh8 {[%emt 0:00:06]} Kf7 {[%emt 0:00:04] Weighted Error Value: White=0.74/Black=0.13 (very precise)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.16"]
[White "Mrithyunjay Mahadevan"]
[Black "Kunal, M.."]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1661"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,72,40,42,30,25,14,14,18,18,11,14,-64,-22,-25,-21,-23,-19,-11,0,-51,-42,-55,-42,-45,-51,-36,0,0,100,99,86,90,88,-35,-23,-41,-43,-82,-94,-84,-85,-84,-92,-352,-364,-341,-334,-334,-94,-107,-106,-451,-447,-876,-899,-945,-921,-1295,-1164,-1389,-1256,-29985,-29986,-29981,-29976]} 1. e4 {[%emt 0:00:03]} c6 {[%emt 0:00:05]} 2. d4 {[%emt 0:00:06]} d5 {[%emt 0:00:04]} 3. e5 {[%emt 0:00:08]} Bf5 {[%emt 0:00:05]} 4. h4 {[%emt 0:00:12]} Qc8 {[%emt 0:00:06]} 5. h5 {[%emt 0:02:04]} h6 {[%emt 0:00:51]} 6. c4 {[%emt 0:01:56] B12: Caro-Kann: Advance Variation.} e6 {[%emt 0:03:32]} 7. Nc3 {[%emt 0:00:37] [#]} Ne7 $146 {[%emt 0:00:13]} ({Predecessor:} 7... Bb4 8. a3 Ba5 9. Be3 Ne7 10. Rc1 Bxc3+ 11. bxc3 Nd7 12. g4 Bh7 13. Nh3 Nb6 14. cxd5 Nexd5 {0-1 (38) Kostenko,P (2476)-Gunina,V (2518) Almaty 2016}) 8. g4 {[%emt 0:08:46] The position is equal.} Bh7 {[%emt 0:00:07]} 9. Be3 {[%emt 0:03:29]} dxc4 {[%emt 0:00:37]} 10. a4 {[%emt 0:03:31] Against b5} (10. Bxc4 $11 Nd7 11. Nge2) 10... a5 {[%emt 0:03:17]} (10... c5 $5) 11. Bxc4 {[%emt 0:00:59]} Na6 {[%emt 0:00:10]} 12. Rc1 {[%emt 0:05:02]} Nb4 {[%emt 0:01:27]} 13. Nh3 {[%emt 0:01:13]} Ned5 {[%emt 0:01:29]} 14. Nf4 {[%emt 0:03:48]} (14. Nxd5 $11 exd5 15. Be2) 14... Nxf4 $15 {[%emt 0:05:17]} 15. Bxf4 {[%emt 0:00:11]} Qd7 {[%emt 0:00:04]} 16. O-O {[%emt 0:01:55]} Be7 {[%emt 0:01:22]} 17. Be3 {[%emt 0:05:59]} Rd8 {[%emt 0:01:14]} 18. f4 {[%emt 0:14:29]} Nd5 {[%emt 0:08:21]} (18... O-O $11 {keeps the balance.}) 19. Bxd5 $16 {[%emt 0:01:23]} cxd5 {[%emt 0:00:07]} 20. f5 {[%emt 0:09:23]} exf5 {[%emt 0:05:58]} 21. Qf3 {[%emt 0:00:28]} (21. Nb5 $16 {[%cal Oe5e6] Hoping for e6!} O-O 22. Rc7) 21... f4 $1 $15 {[%emt 0:00:08]} 22. Nb5 {[%emt 0:02:37]} O-O {[%emt 0:03:35]} 23. Rc7 {[%emt 0:01:40]} ({Don't blunder} 23. Qxf4 $2 Bg5 24. Qg3 Bxe3+ 25. Qxe3 Qxg4+ 26. Kf2 Qxh5 $19) 23... Qe6 $36 {[%emt 0:00:12][%mdl 2048] Keeping White busy.} 24. Bxf4 {[%emt 0:00:11]} ({But not} 24. Qxf4 Bg5 25. Qg3 Bxe3+ 26. Qxe3 Qxg4+ 27. Kf2 Rc8 $17) 24... Be4 {[%emt 0:00:23]} 25. Qg3 {[%emt 0:00:57]} Rc8 {[%emt 0:01:25][%cal Bd8c8,Bc8c2,Bc2f2][%mdl 32]} 26. Rxb7 $2 {[%emt 0:03:41][%mdl 8192]} (26. Be3 $17) 26... Rc2 $19 {[%emt 0:02:14][%cal Oe7h4] Strongly threatening ...Bh4!} 27. Rf2 {[%emt 0:00:48] [#]} Rxf2 {[%emt 0:00:09]} 28. Kxf2 {[%emt 0:00:04] [#]} f6 $2 {[%emt 0:07:24]} (28... g5 $1 $19 {[%cal Rg5f4] is more deadly.} 29. hxg6 (29. Bd2 $2 f6 $19) 29... fxg6) 29. Ke2 $17 {[%emt 0:11:12]} fxe5 {[%emt 0:02:05] Chess con chili.} 30. dxe5 {[%emt 0:00:50][%mdl 8192]} (30. Bxe5 $17 {nothing else works.} Bf3+ 31. Qxf3 Rxf3 32. Kxf3) 30... d4 $19 {[%emt 0:06:17][%cal Bd5d4,Bd4d3,Bd3d2][%mdl 32] ( -> ...Qc4+)} 31. Rc7 {[%emt 0:00:25] Against Qc4+} (31. Rxe7 $142 Qxe7 32. Nd6) 31... d3+ {[%emt 0:07:52]} 32. Kd2 {[%emt 0:09:28]} Bd8 {[%emt 0:06:14] This bishop pair is nice.} 33. Ke3 {[%emt 0:03:44]} d2 {[%emt 0:04:59]} 34. Nc3 {[%emt 0:01:32]} Bxc7 {[%emt 0:00:10]} 35. Kxe4 {[%emt 0:00:16]} Qc4+ {[%emt 0:00:34]} 36. Ke3 {[%emt 0:00:14] [#]} Qxc3+ $3 {[%emt 0:30:23][%mdl 512] Weighted Error Value: White=0.88/Black=0.26 (precise)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.17"]
[White "Badrinarayanan N"]
[Black "Jubin Jimmy"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1574"]
[BlackElo "2259"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,56,-33,-15,-18,1,-35,-28,-50,-47,-50,-37,-70,-71,-107,-64,-70,-71,-70,-74,-78,-53,-56,-45,-50,-45,-79,-79,-83,-79,-79,-69,-70,-67,-78,-76,-307,-322,-304,-281,-548,-545,-535,-518,-595,-587,-822,-815,-1443,-782]} 1. g3 {[%emt 0:00:23]} d5 {[%emt 1:31:00]} 2. Bg2 {[%emt 0:00:13]} e5 {[%emt 0:00:06]} 3. e3 {[%emt 0:00:23]} Nf6 {[%emt 0:00:29]} 4. Ne2 {[%emt 0:00:16]} Bd6 {[%emt 0:00:17]} 5. O-O {[%emt 0:00:22]} O-O {[%emt 1:31:47]} 6. d4 {[%emt 0:00:15] [#] A00: Irregular Openings.} Nbd7 $146 {[%emt 1:32:13][%cal Bb8d7,Bd7b6,Bb6d5,Bd5b4,Bb4d3][%mdl 32]} ({Predecessor:} 6... e4 7. b3 Bf5 8. c4 c6 9. Nbc3 Re8 10. cxd5 cxd5 11. Bd2 Nc6 12. Rc1 h6 {1-0 (49) Kekana,L (1182)-Nkoana,K (1059) Gauteng 2017}) 7. c4 {[%emt 0:00:55]} dxc4 {[%emt 0:00:40]} 8. Nbc3 {[%emt 0:00:21] Black has an edge.} Qe7 {[%emt 0:00:43]} 9. Nb5 {[%emt 0:02:56]} e4 {[%emt 0:02:08]} 10. Qc2 {[%emt 0:03:47]} Nb6 {[%emt 0:01:12]} 11. a4 {[%emt 0:00:35]} Nbd5 {[%emt 0:11:03]} 12. Nxd6 {[%emt 0:03:16]} cxd6 {[%emt 0:00:27]} 13. Qxc4 {[%emt 0:12:26]} Be6 {[%emt 0:02:02][%cal Od5e3,Bc8e6,Be6c4,Bc4d3][%mdl 32] White must now prevent ...Nxe3!} 14. Qc2 {[%emt 0:02:34]} Nb4 {[%emt 0:04:18]} 15. Qd1 {[%emt 0:14:27]} Bc4 {[%emt 0:03:16]} 16. Bd2 {[%emt 0:04:10]} Nd3 {[%emt 0:03:26] Pair of Knights!} 17. Bc3 {[%emt 0:01:51]} Rfc8 {[%emt 0:02:56]} 18. Qd2 {[%emt 0:02:01]} Rc7 {[%emt 0:00:28]} 19. Nc1 {[%emt 0:02:30]} Qe6 {[%emt 1:05:31]} 20. Nxd3 {[%emt 0:01:06]} Bxd3 {[%emt 0:00:03]} 21. Rfc1 {[%emt 0:00:59]} Rac8 {[%emt 1:01:46]} 22. b4 $2 {[%emt 0:03:14] [#] This move loses the game for White.} (22. Qe1 $17) 22... Nd5 $1 $19 {[%emt 0:00:00][%cal Bf6d5,Bd5b4,Bb4d3][%mdl 32]} 23. Ra3 {[%emt 0:04:26]} Qg4 {[%emt 0:00:00]} 24. Bf1 $2 {[%emt 0:14:39]} (24. h3 Qe2 25. Qxe2 Bxe2 26. Bxe4 Rxc3 27. Raxc3 Rxc3 28. Rxc3 Nxc3 29. Bxb7) 24... Bxf1 {[%emt 0:00:00] Black is clearly winning.} ({And not} 24... Nxc3 25. Raxc3 Rxc3 26. Rxc3 $11) ({Not} 24... Rxc3 25. Rcxc3 Nxc3 26. Rxc3 $11) 25. Kxf1 {[%emt 0:00:04] [#]} Nxb4 $1 {[%emt 0:00:00][%mdl 512]} 26. Qe2 {[%emt 0:10:13]} (26. a5 h5) 26... Qf3 {[%emt 0:00:00][%cal Rf3h1]} 27. Qd2 {[%emt 0:02:11]} Nd3 {[%emt 0:00:00]} 28. Rc2 {[%emt 0:00:22]} Qh1+ {[%emt 0:00:00] Weighted Error Value: White=0.77/Black=0.06 (flawless)} 0-1

[Event "13th Chennai Open 2022"]
[Site "Chennai"]
[Date "2022.06.24"]
[Round "8.18"]
[White "Pranav, K P"]
[Black "Tiwari, Arjun"]
[Result "1-0"]
[ECO "A42"]
[BlackElo "2163"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2022.06.19"]
[EventType "swiss"]
[EventCountry "IND"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 17,81,33,41,41,46,30,69,67,184,103,243,235,209,217,282,145,151,119,120,57,195,154,185,122,79,142,135,142,143,30,372,366,729,791,768,743,929,922,1168,1173,1371,1025,1062,1074,1060,1047,1026,1006,968,435,957,958,907,934,879,825,1000,829,29982,29983,29992,29984,29984,29984,29982,29983]} 1. d4 {[%emt 0:00:03]} g6 {[%emt 0:00:24]} 2. c4 {[%emt 0:00:06]} Bg7 {[%emt 0:00:07]} 3. Nc3 {[%emt 0:00:06]} d6 {[%emt 0:00:05]} 4. e4 {[%emt 0:00:16]} Nd7 {[%emt 0:00:09]} 5. Be3 {[%emt 0:00:51]} e5 {[%emt 0:00:11]} 6. d5 {[%emt 0:00:55]} Ne7 {[%emt 0:00:29]} 7. Bd3 {[%emt 0:01:06]} O-O {[%emt 0:00:17]} 8. Nge2 {[%emt 0:01:13]} f5 {[%emt 0:01:27]} 9. f3 {[%emt 0:01:24]} Nf6 {[%emt 0:00:21]} 10. h3 {[%emt 0:02:40] A42: Modern Defence: Averbakh Variation.} Nh5 {[%emt 0:19:02][%cal Oh5f4]} 11. Qd2 {[%emt 0:01:31] [#]} c5 $146 {[%emt 0:05:07]} ({Predecessor:} 11... b6 12. O-O-O f4 13. Bf2 a5 14. Kb1 Bd7 15. Bc2 Qe8 16. Rc1 g5 17. Qd1 Nf6 {1-0 (87) Buhmann,R (2584)-Meissner,F (2333) Katowice 2017}) 12. g4 {[%emt 0:13:54] White is more active. White is slightly better.} fxe4 {[%emt 0:04:29]} (12... f4 $14 13. Bf2 Nf6) 13. fxe4 {[%emt 0:00:18]} (13. Nxe4 $18 Nf6 14. N4c3) 13... Nf4 {[%emt 0:03:37]} (13... Nf6 $16) 14. Nxf4 $18 {[%emt 0:05:34]} exf4 {[%emt 0:00:09]} 15. Bxf4 {[%emt 0:00:28]} a6 {[%emt 0:03:31]} 16. Be3 {[%emt 0:12:37]} (16. O-O $18) 16... b5 $16 {[%emt 0:03:16]} 17. cxb5 {[%emt 0:06:05]} axb5 {[%emt 0:00:15]} 18. Nxb5 {[%emt 0:00:22]} (18. Bxb5 $16 Qb6 19. Qe2) 18... Be5 {[%emt 0:02:23]} (18... Ba6 $14) 19. Ke2 {[%emt 0:01:43]} Bd7 {[%emt 0:05:33] [#]} 20. a4 {[%emt 0:04:18]} ({White must play} 20. Nc3 $1 $18) 20... Qc8 {[%emt 0:05:20][%cal Od7g4] And now ...Bxg4+! would win.} 21. Bc4 {[%emt 0:02:18]} g5 {[%emt 0:10:18]} 22. Bxg5 {[%emt 0:06:42]} Ng6 {[%emt 0:00:46][%cal Od7g4]} 23. Be3 {[%emt 0:07:30]} ({Better is} 23. Bh6 $16) 23... Bg7 {[%emt 0:11:48][%mdl 8192]} (23... Qb8 $11) 24. Nxd6 $18 {[%emt 0:03:09]} Bxg4+ {[%emt 0:03:31]} (24... Qb8) 25. hxg4 {[%emt 0:01:34]} Qxg4+ {[%emt 0:00:04]} 26. Kd3 {[%emt 0:00:08] Black must now prevent Rag1.} Qd7 {[%emt 0:17:07]} 27. Bxc5 {[%emt 0:06:57]} Qc7 {[%emt 0:01:21] [#]} 28. b4 $1 {[%emt 0:04:37]} Rad8 {[%emt 0:02:12]} (28... Ne5+ 29. Kc2) 29. Qh2 {[%emt 0:08:24][%csl Gh1][%cal Rh2h7]} Be5 {[%emt 0:00:31] [#]} 30. Nb5 $1 {[%emt 0:00:45][%csl LRc7,LRf8]} Qg7 {[%emt 0:00:50]} 31. Bxf8 {[%emt 0:00:46]} Rxf8 {[%emt 0:00:19]} 32. d6+ {[%emt 0:02:07]} Kh8 {[%emt 0:00:06] [#]} 33. Qxh7+ $3 {[%emt 0:00:45]} Qxh7 {[%emt 0:00:02]} 34. Rxh7+ {[%emt 0:00:01]} Kxh7 {[%emt 0:00:01]} 35. Rh1+ {[%emt 0:00:02]} Kg7 {[%emt 0:00:14]} 36. Bd5 {[%emt 0:00:42]} Rf2 {[%emt 0:01:15]} 37. Nd4 {[%emt 0:01:28]} Rb2 {[%emt 0:01:40]} 38. Ne6+ {[%emt 0:00:21] White mates.} Kf7 {[%emt 0:00:35]} 39. Rf1+ {[%emt 0:00:36]} Bf6 {[%emt 0:00:22]} 40. Nf4+ {[%emt 0:00:46]} Kg7 {[%emt 0:00:18]} 41. Nh5+ {[%emt 0:00:10] Weighted Error Value: White=0.38/Black=0.82} 1-0

