[Event "FIDE World Cup 2023"] [White "Praggnanandhaa R"] [Black "Erigaisi Arjun"] [Site "Baku"] [Round "6.9"] [Annotator "TA"] [Result "1-0"] [Date "2023.08.17"] [WhiteElo "2690"] [BlackElo "2710"] [PlyCount "144"] [TimeControl "180+2"] {[%evp 15,144,0,10,0,0,0,0,0,2,0,19,0,12,18,29,34,18,30,32,31,33,32,45,73,100,107,133,128,129,131,127,117,119,62,173,101,162,161,160,108,160,141,158,153,145,156,190,191,191,197,190,192,221,210,245,248,276,273,294,277,272,236,409,385,390,375,554,341,893,870,812,512,812,812,769,760,1008,808,6303,6234,2525,1006,29953,12304,29977,4810,1813,0,29977,29978,29969,29969,29982,577,562,562,547,547,540,458,540,479,29973,29975,29974,29975,29974,29974,29977,29978,29977,29978,29979,29980,29980,29981,29982,29983,29986,29983,29983,29984,29985,29986,29986,29987,29987,29988,29988,29989,29989]} 1. Nf3 {[%emt 0:0:37]} Nf6 {[%emt 0:0:2]} 2. b3 {[%emt 0:0:6]} d5 {[%emt 0:0:4]} 3. Bb2 {[%emt 0:0:5]} Bf5 {[%emt 0:0:4]} 4. g3 {[%emt 0:0:2]} e6 {[%emt 0:0:3]} 5. Bg2 {[%emt 0:0:0]} Be7 {[%emt 0:0:4]} 6. d3 {[%emt 0:0:2]} h6 {[%emt 0:0:2]} 7. O-O {[%emt 0:0:2]} O-O {[%emt 0:0:2]} 8. Nbd2 {[%emt 0:0:1]} a5 {[%emt 0:0:2]} 9. a3 {[%emt 0:0:1] 9.a3 is better than 9.a4. A07: Réti Opening: New York and Capablanca Systems.} Bh7 {[%emt 0:0:8]} 10. Ne5 {[%emt 0:0:9]} Nbd7 {[%emt 0:0:8]} 11. Nxd7 {[%emt 0:0:4] The position is equal.} Qxd7 {[%emt 0:0:11] [#]} 12. Nf3 $146 {[%emt 0:0:12]} ({Predecessor:} 12. e4 Rfd8 13. e5 Ne8 14. a4 c6 15. Qe2 Nc7 16. h4 Na6 17. Rfd1 Nb4 18. Nf1 {1-0 Nakamura,H (2736)-Giri,A (2774) Speed Chess Chess.com INT blitz 2021 (2.15)} )c5 {[%emt 0:0:5]} 13. c4 {[%emt 0:0:10]} a4 {[%emt 0:0:14]} 14. Ne5 {[%emt 0:0:8]} Qc7 {[%emt 0:0:2]} 15. cxd5 {[%emt 0:0:17]} exd5 {[%emt 0:0:25]} 16. bxa4 {[%emt 0:0:1]} Qa5 {[%emt 0:0:11]} 17. Qb3 {[%emt 0:0:4][%csl Yb7,Yd5]} Qxa4 {[%emt 0:0:32]} 18. Bxd5 {[%emt 0:0:2]} Nxd5 {[%emt 0:0:1]} 19. Qxd5 {[%emt 0:0:1]} Qa6 {[%emt 0:0:10]} 20. a4 {[%emt 0:0:8]} Rad8 {[%emt 0:0:7]} 21. Qf3 {[%emt 0:0:24] White is more active.} Bf6 {[%emt 0:0:15] [#]} 22. Nc4 $1 {[%emt 0:0:2] And now Bxf6 would win.} Bxb2 {[%emt 0:0:3]} 23. Nxb2 {[%emt 0:0:1]} Rfe8 {[%emt 0:0:5]} 24. Nc4 {[%emt 0:0:1]} (24. a5 $16 )Qe6 {[%emt 0:0:5]} (24... Be4 $1 $14 25. Qf4 (25. dxe4 Qxc4 26. e5 b6 $11 )Rd4 )25. Ne3 {[%emt 0:0:15]} (25. Qxb7 Qxe2 26. Qc7 Qxd3 $11 )(25. Rfe1 $18 )b6 {[%emt 0:0:17]} (25... c4 $16 )26. Rfc1 {[%emt 0:0:11]} Ra8 {[%emt 0:0:4]} 27. Qf4 {[%emt 0:0:5]} ({White should try} 27. Ra3 )Ra5 {[%emt 0:0:4]} (27... Ra6 $142 28. Rcb1 Bg6 )28. Rcb1 {[%emt 0:0:25]} Bg6 {[%emt 0:0:6]} 29. Rb2 {[%emt 0:0:3]} Qc6 {[%emt 0:0:8]} 30. Rab1 {[%emt 0:0:8]} Qxa4 {[%emt 0:0:10]} 31. Qxa4 {[%emt 0:0:5]} (31. Rxb6 Qxf4 32. gxf4 Kh7 )Rxa4 {[%emt 0:0:1]} 32. Rxb6 {[%emt 0:0:1][%cal Yb2b6,Yb6c6,Yc6c8][%mdl 32]} Kh7 {[%emt 0:0:4][%cal Yc5c4]} 33. R1b2 {[%emt 0:0:3]} Ra1+ {[%emt 0:0:3]} 34. Kg2 {[%emt 0:0:1]} Rc1 {[%emt 0:0:2]} 35. Rc6 {[%emt 0:0:2]} Re5 {[%emt 0:0:4]} 36. Rc8 {[%emt 0:0:5]} Bf5 {[%emt 0:0:3]} 37. Nxf5 {[%emt 0:0:8]} Rxf5 $18 {[%emt 0:0:1][%mdl 4096] Endgame KRR-KRR} 38. f4 {[%emt 0:0:1] Black must now prevent e4.} Rd5 $2 {[%emt 0:0:2]} (38... Rf6 39. Kh3 Rc3 )39. Rc7 {[%emt 0:0:1]} Rf5 {[%emt 0:0:2]} 40. Kf3 {[%emt 0:0:4]} h5 {[%emt 0:0:3]} (40... Rf1+ $142 41. Kg4 Rf6 )41. Rb5 {[%emt 0:0:2]} g6 $2 {[%emt 0:0:2]} (41... Rf1+ 42. Kg2 Rd1 )42. e4 {[%emt 0:0:3]} Rf6 {[%emt 0:0:0]} 43. Rbxc5 {[%emt 0:0:1]} Rf1+ {[%emt 0:0:2]} (43... Rxc5 $142 44. Rxc5 Ra6 )44. Kg2 {[%emt 0:0:2]} Rd1 {[%emt 0:0:1]} 45. Rd5 {[%emt 0:0:2]} h4 {[%emt 0:0:1]} 46. Rdd7 {[%emt 0:0:2]} (46. gxh4 Rxf4 47. Kg3 Rdf1 $16 )Kg8 {[%emt 0:0:1]} 47. e5 {[%emt 0:0:2]} ({Less strong is} 47. gxh4 Rxf4 48. Rc8+ Kg7 $16 )Rf5 {[%emt 0:0:3]} 48. Kf3 {[%emt 0:0:2]} (48. gxh4 Rxf4 49. Rc8+ Kg7 $16 )(48. Rc8+ $142 Kg7 49. Rdd8 (49. gxh4 Rxf4 50. e6 Rd2+ 51. Kg3 Rdf2 $16 )Rxe5 50. fxe5 hxg3 51. Kxg3 )hxg3 {[%emt 0:0:2]} 49. hxg3 {[%emt 0:0:1]} (49. Rd8+ $142 Kg7 50. hxg3 (50. Kxg3 g5 $16 )Re1 51. Rcc8 Rfxe5 52. fxe5 Rxe5 53. Rc7 Rf5+ 54. Kg4 )Rf1+ {[%emt 0:0:1]} 50. Kg2 {[%emt 0:0:2]} (50. Ke2 $142 Ra1 51. Rd8+ Kg7 52. Rcc8 Rxe5+ 53. fxe5 Kh6 54. Rc7 Ra2+ 55. Ke3 )Re1 {[%emt 0:0:1]} 51. Kf3 {[%emt 0:0:3]} (51. Rc8+ $18 Kg7 52. Rdd8 Rfxe5 53. fxe5 Re2+ 54. Kh3 Rxe5 55. d4 Rh5+ 56. Kg2 )Rf1+ $1 {[%emt 0:0:2]} 52. Ke2 {[%emt 0:0:2]} Rg1 {[%emt 0:0:3]} 53. Kf2 {[%emt 0:0:1]} Rd1 {[%emt 0:0:3] [#]} 54. e6 {[%emt 0:0:1]} fxe6 {[%emt 0:0:1]} 55. Rg7+ {[%emt 0:0:4]} Kf8 {[%emt 0:0:2]} 56. Rxg6 {[%emt 0:0:2]} Rf7 {[%emt 0:0:7]} 57. Rc8+ {[%emt 0:0:3]} Ke7 {[%emt 0:0:0]} 58. Rc6 {[%emt 0:0:1]} Rf6 {[%emt 0:0:3]} (58... Rxd3 $18 59. Rcxe6+ Kf8 )59. Rc7+ {[%emt 0:0:0][%mdl 64] Deflection. White mates.} Kd6 {[%emt 0:0:2]} 60. Rxf6 {[%emt 0:0:1]} Kxc7 {[%emt 0:0:1]} 61. Rxe6 {[%emt 0:0:1]} Rxd3 {[%emt 0:0:1] KR-KR} 62. Re3 {[%emt 0:0:0]} Rd2+ {[%emt 0:0:1]} 63. Kf3 {[%emt 0:0:1]} Kd6 {[%emt 0:0:0]} 64. f5 {[%emt 0:0:1][%cal Yf4f5,Yf5f6,Yf6f7][%mdl 32]} Kd7 {[%emt 0:0:1]} 65. g4 {[%emt 0:0:1][%cal Yg3g4,Yg4g5][%mdl 32]} Ra2 {[%emt 0:0:1]} 66. g5 {[%emt 0:0:1]} Kd6 {[%emt 0:0:1]} 67. Kg4 {[%emt 0:0:1]} Ra4+ {[%emt 0:0:1]} 68. Kh5 {[%emt 0:0:1]} Rf4 {[%emt 0:0:1]} 69. f6 {[%emt 0:0:1]} Rf1 {[%emt 0:0:1]} 70. Kg6 {[%emt 0:0:0]} Kd7 {[%emt 0:0:1]} 71. f7 {[%emt 0:0:1]} Kd6 {[%emt 0:0:1]} 72. Kg7 {[%emt 0:0:1]} Kd5 {[%emt 0:0:2] Weighted Error Value: White=0.25 (precise) /Black=0.61} 1-0