[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.15"]
[Round "1.2"]
[White "Jumabayev, Rinat"]
[Black "Nguyen, Thai Dai Van"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2631"]
[BlackElo "2609"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,85,17,10,10,5,6,4,11,9,20,29,31,22,36,35,50,32,24,20,51,20,16,16,23,21,36,29,36,27,34,39,47,51,71,65,65,58,56,8,18,0,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qa4 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Nc6 11. e3 Nb4 12. Bxb4 Bxb4 13. a3 Bd6 {E05: Open Catalan: 5 Nf3 Be7.} 14. Nbd2 Rc8 $1 15. Nb3 {Prevents c5.} Be4 16. Qc3 Bd5 {[%cal Oc7c5]} 17. Nc5 Bxc5 18. dxc5 {[#]} Ne4 $146 ({Predecessor:} 18... c6 19. b4 Ne4 20. Qb2 a5 21. Nd4 a4 22. Rad1 Qc7 23. f3 Nf6 24. e4 Bc4 {1-0 (67) Szerlak,A (2337)-Ylipartanen,J (2063) ICCF email 2017}) 19. Qc2 Ng5 20. Nxg5 Qxg5 21. h4 Qe7 22. Bxd5 exd5 23. c6 Rfd8 24. Rfd1 Rd6 25. a4 Qf6 26. axb5 axb5 27. Rac1 g6 28. Rd4 Ra8 29. Qc5 {[%csl LRb5,LRd5] White is more active.} Ra4 30. b4 Ra2 31. Rf4 (31. Rf1 $14 {might be stronger.}) 31... Qb2 $11 {The position is equal.} 32. Kg2 {[%cal Oh4h5]} Rf6 33. Rf1 Rxf4 34. exf4 {[%mdl 4096] [#] Endgame And now Re1 would win. KQR-KQR} Qe2 {To avoid Re1} 35. Qxd5 Rd2 36. Qe5 Qxe5 37. fxe5 {KR-KR} Re2 38. Rd1 {Threatens to win with Rd8+.} Rxe5 39. Rd7 {Strongly threatening Kf3.} Re4 40. Rxc7 Rxb4 41. Rb7 Rc4 42. c7 {[#] Intending Rb8+ and mate.} Kg7 43. Rxb5 {Weighted Error Value: White=0.05 (flawless) /Black=0.06 (flawless)} 1/2-1/2

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.17"]
[Round "3.5"]
[White "Jumabayev, Rinat"]
[Black "Van Foreest, Lucas"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2631"]
[BlackElo "2530"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,87,0,0,0,0,0,0,0,0,0,0,0,0,-28,-16,-12,78,64,37,51,116,131,101,88,133,97,133,134,126,137,135,146,141,139,129,138,247,243,252,206,339,327,349,344,325,328,275,205,590,600,557,498,489,495,500,489,496,500,481,490,481,454,440,413,541,506,647,637,777,795,813,801,1195,827]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. g3 Nbd7 6. Bg2 dxc4 7. O-O $1 {The main line 7.0-0 scores better than 7.a4.} b5 8. e4 Bb7 9. e5 {E01: Catalan: Early deviations.} Nd5 10. Ng5 Be7 {And now ...Nxc3 would win.} 11. Qh5 $1 {[%csl Gg5,LRe6,LRf7,LRh7][%cal Rh5f7] The position is equal.} g6 12. Qh6 Bf8 {Inhibits Qg7.} 13. Qh3 $40 {[%mdl 128] White has some attack.} Be7 14. Bxd5 $5 {[%mdl 4] Exploring less charted territory.} cxd5 15. Nxb5 {[#]} Qb6 $146 (15... h6 $11) ({Predecessor:} 15... h6 16. Nf3 Ba6 17. Nc3 Nb8 18. Be3 Nc6 19. Rfb1 Kf8 20. Qf1 Rb8 21. Qd1 Kg7 {½-½ (38) Gullotto,V (2293)-Reuter,P (2324) ICCF email 2017}) 16. Nd6+ $1 $16 (16. a4 h6 $15) 16... Bxd6 17. exd6 {Black must now prevent Re1.} Qxd6 ({Black should try} 17... Qxd4 $14 18. Re1 (18. Nxe6 fxe6 19. Qxe6+ Kd8 $17) 18... Bc6) 18. Re1 $1 Nf8 19. Qh6 {Strongly threatening Qg7.} (19. Bf4 $6 Qe7 $11) 19... Nd7 20. Bf4 Qf8 {[#]} 21. Nxe6 $1 {[%mdl 512]} fxe6 22. Rxe6+ Kd8 (22... Kf7 $2 23. Rae1 Qxh6 24. Re7+ Kf6 25. Bxh6 $18) 23. Qh4+ {[%mdl 1024] White has strong compensation.} Kc8 24. Rae1 {Rd6 is the strong threat.} a5 {[#]} 25. Qh6 $1 {White is much more active. Black has bad knights.} Qd8 {[#]} (25... Kd8 $16) 26. Qg7 $1 $18 {[%cal Og7h8] Intending Qxh8! and mate.} Rf8 {[%cal Of8f4]} 27. Bd6 Ra6 (27... Rf6 $142 28. Rxf6 (28. Re8 Rxd6 29. Qxh7 a4 $11) 28... Nxf6) 28. Bxf8 Rxe6 29. Rxe6 Nxf8 30. Re7 Nd7 31. Qxh7 {Hoping for h4.} c3 $2 (31... Bc6 {is more resistant.} 32. h4 (32. Qxg6 Qxe7 33. Qxc6+ Kd8 $16) 32... a4) 32. bxc3 Bc6 33. Re6 Bb5 34. Qf7 {Threatens to win with Re8.} Qc7 35. Re8+ Kb7 36. Qxd5+ Bc6 37. Qe6 Nb6 38. Re7 Bd7 39. Qe4+ Ka7 40. Qd3 {White is clearly winning.} Qd6 41. Rg7 Qe6 42. c4 g5 43. d5 Qe5 44. Qh7 {Weighted Error Value: White=0.07 (flawless) /Black=0.38} 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.20"]
[Round "5.5"]
[White "Jumabayev, Rinat"]
[Black "Dardha, Daniel"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2631"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "205"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,205,0,15,0,6,0,0,0,8,0,7,3,58,47,51,43,61,61,59,61,47,63,42,54,51,52,44,26,54,46,51,12,16,15,22,22,37,30,75,83,76,78,79,75,75,76,81,75,84,83,153,161,162,145,141,20,22,0,69,52,60,35,64,21,101,75,112,123,120,128,128,105,147,157,147,112,117,109,102,0,120,117,112,109,102,106,125,127,123,120,121,112,104,110,129,138,130,101,91,94,116,116,127,127,127,127,130,130,130,130,218,215,268,268,268,268,264,239,242,0,261,185,178,175,185,185,214,185,185,185,206,180,149,149,217,218,231,147,147,154,167,0,152,0,247,0,174,153,161,50,50,55,161,179,180,175,239,239,1083,1018,719,445,736,439,3054,1504,4137,4137,3877,3249,2695,2737,2500,2253,2261,1895,2142,1735,2383,2362,29982,29983,29983,29984,29984,29984,29984,29985]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 c6 9. Bf4 b6 10. Nbd2 Ba6 11. Rfd1 {E11: Bogo-Indian.} Nh5 12. e3 $5 {[%mdl 4] Exploring less charted territory.} Rc8 13. h4 {Inhibits g5. The position is equal.} Bb7 {[#]} 14. Rac1 $146 ({Predecessor:} 14. Ne5 c5 15. cxd5 Bxd5 16. Bxd5 exd5 17. Qf5 Nxe5 18. dxe5 Nxf4 19. exf4 g6 20. Qd3 {½-½ (42) Herman,T (2315)-Sherwood,H (2353) ICCF email 2019}) 14... h6 15. cxd5 cxd5 ({Black should play} 15... Nxf4 $11 16. exf4 cxd5) 16. Bc7 $14 Qe8 17. Qa4 Nc5 18. Qxe8 ({Reject} 18. Qxa7 Rxc7 19. dxc5 bxc5 $15) 18... Rfxe8 19. dxc5 Rxc7 20. cxb6 Rxc1 21. Rxc1 axb6 22. Rc7 Ba8 23. Nd4 (23. Ra7 $5 {[%cal Rf3e5]}) 23... Bd6 24. Ra7 Nf6 25. Nb5 Bf8 26. Nf3 {Black must now prevent Ne5.} Bc6 27. Nbd4 Rc8 28. Ra6 Nd7 (28... Bd7 $11 {is more appropriate.}) 29. Bf1 $16 Bd6 30. Nxc6 Rxc6 31. Bb5 $36 {[%mdl 2048] White has strong initiative.} Nb8 32. Ra7 Rc7 33. Ra8 Rc1+ 34. Kg2 e5 (34... Kf8 $142) 35. h5 g5 36. hxg6 $1 fxg6 37. Nh4 (37. e4 $16) 37... Kf7 $1 $11 38. Nf3 Ke7 (38... Kg8 $1 $11) 39. b4 Nd7 40. Nh4 Nf6 41. a3 (41. Ra6 $1 $14) 41... Rc2 (41... Ke6 $11) 42. Ra7+ Ke6 43. Bd3 ({Of course not} 43. Nxg6 $6 Ne4 $15) 43... Rc7 44. Rxc7 Bxc7 45. Bxg6 $16 {[%mdl 4096] Endgame KBN-KBN} Bd6 (45... Ng8 $142) 46. Bf5+ Kf7 47. Nf3 Ne8 48. Bd7 Nf6 49. Bf5 Ne8 $1 50. Kf1 Bc7 51. Bc2 Ke6 52. Bh7 Nf6 53. Bg6 Ng8 54. Ke2 Ne7 55. Bc2 Nc8 56. Bh7 Bd8 57. Bg8+ Kd6 58. e4 dxe4 59. Nd2 b5 60. Nxe4+ Kc6 61. Bf7 Kd7 {To avoid Be8+} 62. Bh5 {And now Bg4+ would win. White is more active.} Ke7 63. Nc3 Nd6 64. Bg4 e4 {[#]} (64... Ke8 $16 65. a4 bxa4) 65. Nd5+ $1 $18 Kf7 {[#]} 66. Ke3 $1 Bg5+ 67. Kd4 Bd2 68. Bh5+ Ke6 69. Bg4+ Kf7 70. Ke5 Nc4+ 71. Kxe4 Be1 72. Kf3 Nxa3 73. Bf5 Bd2 74. Ke2 Bg5 75. Kd3 h5 76. f4 Bh6 (76... Bd8 $16 77. Kd4 h4) 77. Kd4 Bf8 78. Bd7 Bd6 79. Kc3 Nb1+ 80. Kd4 Na3 81. Bf5 (81. Bh3 $16) 81... Bf8 $1 82. Bd7 Bd6 83. Kd3 Bf8 84. g4 (84. Kc3 $18) 84... hxg4 $14 85. Bxg4 Nc4 {White now steadily converts the win.} (85... Kg6 $14) 86. Bd7 $18 Nd6 87. Kd4 Kg6 (87... Nb7 $142 88. Bxb5 Ke6) 88. Kc5 Kh5 $2 (88... Kf7 89. Kb6 (89. Bxb5 Nf5+ 90. Kb6 Bd6 $16) 89... Ne4 90. Kxb5 Nf6) 89. Bxb5 Kg4 90. Be2+ Kg3 (90... Kf5 $142 91. Bd3+ Ke6) 91. Bd3 {Kc6 is the strong threat.} Kf3 (91... Nc8+ $142 92. Kc4 Ne7) 92. b5 (92. Kc6 $142 Nc8 93. b5) 92... Nf5+ 93. Kc6 Nd4+ 94. Kd7 Nb3 95. Bc2 Nc5+ 96. Ke8 Bd6 97. f5 {[%cal Bf4f5,Bf5f6,Bf6f7][%mdl 32]} Ke2 98. f6 {Hoping for f7.} Kd2 99. Bf5 {Threatening mate with f7.} Nb7 100. Bc8 {White mates.} Nc5 101. f7 Ne4 102. Bf5 Ng3 103. Bg6 {Weighted Error Value: White=0.13 (very precise) /Black=0.14 (very precise)} 1-0

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.22"]
[Round "7.1"]
[White "Jumabayev, Rinat"]
[Black "Erigaisi Arjun"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2631"]
[BlackElo "2629"]
[Annotator "TA"]
[PlyCount "167"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,167,27,6,18,24,6,0,0,12,25,42,34,16,52,55,57,26,26,4,19,22,24,27,17,15,18,24,31,22,52,43,45,47,52,50,54,47,65,65,74,65,65,65,66,0,85,72,86,51,90,51,86,52,60,35,60,52,52,27,60,52,50,29,48,25,54,45,46,8,16,-18,47,0,39,0,30,0,27,0,0,0,50,31,50,50,67,20,47,10,45,4,29,27,33,12,29,0,33,25,29,0,63,0,0,0,0,0,35,0,0,0,43,38,52,59,38,45,82,81,75,29,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 d6 7. Be3 $1 {[%mdl 4] is currently scoring better than 7.Be2.} Be7 {B45: Sicilian Four Knights.} 8. Be2 O-O 9. Qd2 Nxd4 10. Bxd4 e5 11. Be3 Be6 12. O-O-O {[#]} Rc8 $146 {[%cal Oc8c3]} ({Predecessor:} 12... a6 13. Kb1 b5 14. f4 Rb8 15. f5 Bc4 16. g4 d5 17. g5 Nxe4 18. Nxe4 dxe4 {0-1 (59) Popov,V (2151)-Serovey,M (1866) ICCF email 2012}) 13. f3 ({Worse is} 13. Bxa7 b6 14. f4 Qc7 $19) 13... a6 14. Kb1 Qc7 {[%cal Od6d5]} 15. Rc1 (15. Bg5 {with more complications.} Rfd8 16. Bd3 b5 17. h4 Qb7 18. g4) 15... Rcd8 16. Nd5 $1 Nxd5 17. exd5 Bd7 18. c4 b6 19. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} f5 20. h4 Rde8 21. g5 f4 22. Bf2 Bf5+ 23. Bd3 Bxd3+ 24. Qxd3 a5 25. b3 Bd8 26. Qe4 Qd7 27. Kc2 Bc7 28. Kd3 (28. Kd2 $14) 28... Ra8 (28... b5 $11 {remains equal.}) 29. Ke2 {[%cal Bd3e2,Be2f1,Bf1g2][%mdl 32]} Ra6 30. Kf1 Rfa8 31. Kg2 Bd8 32. Rc2 {[%cal Bc1c2,Bc2e2,Be2e4][%mdl 32]} R6a7 33. Qd3 Bc7 34. Rb1 Bd8 35. Rd1 Bc7 36. Re2 Bd8 37. Re4 Bc7 38. Qe2 Ra6 39. Kh2 R6a7 40. Qf1 Kf7 41. Rd2 Ra6 ({Black should try} 41... g6 $11) 42. Qe2 (42. Qd3 $14 {deserves consideration.}) 42... Kg8 43. Qf1 Kf7 44. Rd1 (44. Qd3 {looks sharper.} Qf5 45. Rd1 R6a7 46. Rg1 g6 47. a4) 44... R6a7 45. Qh3 (45. Qd3 {is interesting.} g6 46. Rg1 Qf5 47. Kg2 Rh8 48. Kf1) 45... Qxh3+ 46. Kxh3 Ke7 (46... g6 $11) 47. Kg4 Kd7 48. Re2 Ra6 49. Rd3 {White is more active.} (49. a4 $14 {is superior.}) 49... R6a7 50. Be1 Ra6 51. Bc3 (51. Kf5 $14) 51... Re8 52. Rd1 Ra7 53. Bb2 Ra6 54. h5 Ra7 55. Rh1 Raa8 56. g6 h6 (56... Rh8 $1 $11) 57. Re4 (57. Bc3 $14) 57... Rf8 $1 $11 58. b4 axb4 59. axb4 {[%cal Oc4c5]} Ra2 (59... Ra4 $5 {[%cal Ra4b4]}) 60. Rh2 Rfa8 61. Rhe2 Re8 (61... Bb8 $11) 62. Rc2 $14 Bd8 63. Ree2 (63. Re1 {feels hotter.} Bc7 64. Ree2 Rb8 65. Rc1 Bd8 66. Rec2) 63... Bf6 $1 64. Bc3 Rxc2 65. Rxc2 {[%mdl 4096] Endgame Hoping for Ra2. KRB-KRB} Ra8 {[#] Prevents Ra2.} 66. Kf5 (66. Be1 $1 $16) 66... Ra3 $11 67. c5 (67. Rc1 {seems wilder.} Rb3 68. Ke4 Ra3 69. Rc2 Rb3 70. Bd2) 67... bxc5 {The position is equal.} 68. bxc5 dxc5 69. Bxe5 Bxe5 70. Kxe5 Rxf3 {KR-KR} 71. Ra2 {[#] And now Ra7+ would win.} Re3+ $1 72. Kxf4 Re7 73. Ra6 c4 74. Rc6 Re1 75. Rxc4 Rh1 {( -> ...Rh4+)} 76. Kg4 {Prevents Rh4+.} Rg1+ 77. Kf3 {Strongly threatening Ra4.} Rh1 78. Kg4 {Ra4 is the strong threat.} Rg1+ 79. Kf3 Rh1 80. Rf4 Rxh5 81. Ke4 Kd6 {Threatens to win with ...Re5+.} 82. Rf7 Rxd5 {aiming for ...Re5+.} 83. Rxg7 Rg5 84. Rh7 {Weighted Error Value: White=0.19 (very precise) /Black=0.18 (very precise)} 1/2-1/2

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.25"]
[Round "9.3"]
[White "Jumabayev, Rinat"]
[Black "Murzin, Volodar"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2631"]
[BlackElo "2519"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,18,19,13,20,10,33,30,45,43,58,53,56,52,50,44,41,33,47,37,86,67,85,86,99,96,96,93,75,0,0,0,0,0,0,0,0,0,0,0,0,-31,-31,-31,-38,-65,-38,-62,-39,-88,-96,-95,-96,-175,-178,-193,-180,-144,-117,-148,-62,-113,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 g6 5. e3 Bg7 6. Be2 {D11: Slav Defence: 3 Nf3 sidelines and 3...Nf6 4 e3 Bg4.} O-O 7. O-O a5 8. Nc3 {[#] White is slightly better.} Bf5 $146 ({Predecessor:} 8... Na6 9. a3 Nc7 10. Rd1 Bg4 11. Ne5 Bxe2 12. Qxe2 Nd7 13. cxd5 Nxe5 14. dxe5 cxd5 15. Nxd5 Nxd5 {½-½ (26) Kubesa,D-Blecha,J (1915) Ostrava 2010}) 9. Qb3 Ra7 10. cxd5 cxd5 11. Bd2 Nc6 12. Rfc1 Ne4 13. Be1 ({Much weaker is} 13. Nxd5 e5 14. Bc4 exd4 $17) 13... e6 14. Bb5 Ne7 (14... h5 $14) 15. Ne5 $16 Nxc3 16. Qxc3 Nc8 17. Nd7 {White is more active.} Nd6 18. Qc5 ({Much worse is} 18. Nxf8 $6 Nxb5 19. Qc5 Bd3 20. Nxe6 fxe6 $11) 18... Nxb5 19. Nxf8 ({White should play} 19. Qxb5 $16 Re8 20. Rc5) 19... Bd3 $11 20. Nxe6 fxe6 21. a4 Bf8 $1 {A strong pair of Bishops.} 22. Qc8 Qxc8 23. Rxc8 Nd6 24. Rb8 Bc2 25. b4 (25. Rc1 $5 {[%cal Rc1c2]} Bxa4 26. Rc7 $11) 25... Nc4 26. bxa5 Kf7 $36 {[%mdl 2048] Black is pushing.} 27. Rd8 Be7 {[%mdl 1024] Black has compensation.} 28. Rh8 g5 {And now ...Bf8 would win.} (28... h5 $5 {[%cal Re7f8]} 29. Rh7+ Kf8 $15) 29. Rc1 (29. Rc8 $1 $15) 29... Bg6 $17 30. Rc8 Bd6 31. f3 (31. Rd8 $17 {was worth a try.} Ke7 32. Rg8) 31... Nxe3 $19 32. Rd8 Ke7 33. Rcc8 Nc4 {Inhibits Bd2.} 34. h4 {[#]} Ra6 ({Black should try} 34... e5 $1 $17 {[%cal Re5d4]} 35. dxe5 Nxe5 36. hxg5 Nc6) 35. hxg5 {[#]} (35. Rg8 $1 $15) 35... Nxa5 (35... e5 $1 $17 {[%cal Re5d4]} 36. dxe5 Nxe5) 36. Rg8 $11 {The position is equal.} Kf7 {To avoid Rg7+} 37. Rgd8 Ke7 {Inhibits Rd7+. Hoping for ...Nc6.} 38. Rg8 {Threatens to win with Rg7+.} Kf7 {To avoid Rg7+} 39. Rgd8 Ke7 {Prevents Rd7+. aiming for ...Nc6.} 40. Rg8 {Rg7+ is the strong threat.} Kf7 {Prevents Rg7+.  Weighted Error Value: White=0.11 (very precise) /Black=0.14 (very precise)} 1/2-1/2

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.26"]
[Round "10.2"]
[White "Jumabayev, Rinat"]
[Black "Bjerre, Jonas Buhl"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2631"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,114,12,21,0,0,0,0,0,0,-8,0,0,0,-8,6,10,15,1,0,16,10,0,0,0,0,-5,-4,-10,-8,-94,-94,-91,-82,-89,-80,-95,-55,-65,-65,-50,-53,-81,-99,-113,-112,-111,-108,-110,-104,-114,-114,-107,-112,-110,-108,-114,-112,-129,-127,-127,-122,-130,-120,-125,-120,-154,-162,-154,-139,-157,-162,-182,-182,-183,-139,-178,-149,-152,-174,-189,-92,-160,-156,-148,-154,-402,-375,-364,-370,-379,-362,-655,-655,-655,-655,-655,-655,-655,-655,-648,-601,-583,-583,-779,-703]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Qc2 {E04: Open Catalan: 5 Nf3.} Nxd4 8. Nxd4 Qxd4 9. Nd2 {The position is equal.} c3 10. bxc3 Qc5 11. Rb1 Be7 {[#]} 12. Rb3 $146 ({Predecessor:} 12. Ne4 Nxe4 13. Bxe4 h6 14. c4 O-O 15. Be3 Qe5 16. Bxb7 Bxb7 17. Rxb7 Bg5 18. Ba7 Rfd8 19. f4 Qd6 20. fxg5 Rxa7 21. Rxa7 Qb6+ 22. e3 Qxa7 23. Qf2 {½-½ (23) Dubov,D (2683)-Duda,J (2758) Wijk aan Zee 2020}) 12... Qf5 13. Qxf5 exf5 14. Bxb7 Bxb7 15. Rxb7 Nd5 16. c4 O-O-O {[%cal Be8c8,Bc8b7,Bb7c6][%mdl 32]} 17. Ra7 Nb4 {[#] Strongly threatening ...Kb8.} 18. Nb3 {And now Bf4 would win.} Nc6 $1 19. Rxa6 Kb7 20. Rxc6 Kxc6 $17 21. Bb2 Bf6 $36 {[%mdl 2048] Black is on the roll.} 22. Bxf6 gxf6 {[%mdl 4096] Endgame KRR-KRN} 23. Rb1 f4 24. gxf4 Rhg8+ 25. Kf1 Ra8 {[%mdl 1024] Inhibits Na5+. Black has compensation.} 26. Rb2 Ra4 27. Rc2 Rga8 28. Nc1 Kc5 29. Nb3+ Kd6 30. Nc1 R8a5 31. e3 Rc5 32. Rd2+ Ke7 33. Nb3 Rcxc4 34. Nd4 Ra5 35. Kg2 Rd5 36. Rb2 Kd7 37. h4 c5 38. Rb7+ Kc8 39. Rb5 Kc7 40. Nb3 Kc6 41. Rb8 Ra4 {To avoid Na5+} 42. Nc1 Rd1 ({Black should try} 42... Rd2 $19 {aiming for ...Rc2.} 43. Rc8+ Kb6 44. Rb8+ Kc7) 43. Rc8+ Kb5 44. Ne2 Kb4 {To avoid Nc3. Black is more active.} ({And not} 44... Kc4 45. Ng3 $15) 45. Ng3 Rc1 ({Not} 45... Rxa2 46. Rb8+ Kc4 47. Kf3 $17) (45... c4 $19 {has better winning chances.} 46. Ne4 Rc1 47. Nxf6 Rxa2 48. Nxh7 c3) 46. Ne4 ({White should play} 46. a3+ Rxa3 47. Rc7) 46... c4 {[%cal Bc5c4,Bc4c3,Bc3c2][%mdl 32]} 47. Nxf6 Rxa2 {[#] Threatens to win with ...c3.} 48. Kf3 $2 {White does not recover from this.} (48. Nd5+ $17 Kb3 49. Rb8+ Ka3 50. Rc8) 48... c3 $19 49. Nd5+ Kb3 50. Rb8+ Kc4 51. Nb6+ (51. e4 c2 52. Ne3+ Kd3 53. Rd8+ Kc3 54. Rc8+ Kb2 55. f5) 51... Kc5 {Hoping for ...c2. Black is clearly winning.} 52. Nd7+ Kd6 53. Ne5 c2 54. Rb6+ Kc7 55. Rc6+ Kb7 {White must now prevent ...Rd1.} 56. Rc3 Rd1 {...f5 is the strong threat.} 57. Rb3+ Ka6 {Weighted Error Value: White=0.24 (precise) /Black=0.04 (flawless)} 0-1

[Event "84th Tata Steel Challengers 2022"]
[Site "Wijk aan Zee"]
[Date "2022.01.29"]
[Round "12.3"]
[White "Jumabayev, Rinat"]
[Black "Shuvalova, Polina"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2631"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2022.01.15"]
[EventType "tourn"]
[EventCountry "NED"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,10,13,21,6,19,14,23,16,31,12,41,-53,-8,-5,0,0,-11,-1,0,-35,-19,-24,-30,-29,-41,-38,0,-3,-3,-8,0,0,0,0,38,29,167,177,158,162,181,185,195,160,225,104,116,102,114,120,251,243,351,338,393,394,428,418,1521,1052,970,905,12835,12835,12832,12832,12829,2856]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Bg5 h6 7. Bh4 a5 {[#] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. Na3 $146 ({Predecessor:} 8. Nbd2 Ba7 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}) 8... Bxa3 9. bxa3 Ne7 {The position is equal.} 10. Bxf6 gxf6 11. Nh4 (11. O-O {feels hotter.} Rg8 12. g3 Bg4 13. Re1 Ng6 14. d4) 11... d5 12. Bb3 ({White should try} 12. exd5 $14 Nxd5 13. Qf3) 12... Qd6 (12... dxe4 $15 13. Qh5 (13. dxe4 Qxd1+ 14. Bxd1 Ng6 $15) 13... Rf8 14. dxe4 (14. Ba4+ Bd7 $17) 14... Qd3) 13. O-O $11 Bd7 {[%cal Bc8d7,Bd7c6,Bc6d5][%mdl 32]} 14. Qf3 {[%cal Rb3d5]} a4 15. Bc2 (15. Bxd5 c6 16. Bc4 b5 $17) 15... O-O-O 16. d4 Bc6 17. Rfe1 Kb8 18. exd5 Bxd5 19. Qe3 {[%cal Rd4e5]} Nc6 (19... Qxa3 {with more complications.} 20. dxe5 fxe5 21. c4 Qxe3 22. Rxe3 Bxc4 23. Rxe5 Nc6) 20. Bxa4 Qxa3 21. Bb3 Bxb3 22. axb3 Qxb3 {[%cal Re5d4]} 23. dxe5 fxe5 24. Qe4 {Inhibits Qc4. Reb1 is the strong threat.} Qd5 (24... Qxc3 $11 {and Black has nothing to worry.} 25. Qa4 Kc8) 25. Qa4 $18 {[%csl Ga1][%cal Ra4a8][%mdl 1024] White has strong compensation.} Kc8 26. Nf5 $1 (26. Red1 $6 Qe6 $14) 26... Rhe8 {[#]} 27. Reb1 $1 (27. Nxh6 Qe6 28. Ng4 f5 $14) 27... Nb8 28. Rd1 $40 {[%mdl 128] White attacks with force.} (28. Nxh6 $6 e4 $16) 28... b5 {[#]} (28... Qc5 $16 29. Nxh6 Rxd1+ 30. Rxd1 b5) 29. Rxd5 (29. Qg4 $1 $18 {[%cal Rf5d6] and the rest is easy.} Qe6 30. Rdb1) 29... bxa4 $16 30. Rxd8+ (30. Ra5 Re6 $14) 30... Rxd8 31. Nxh6 $18 {[%mdl 4096] Endgame KRN-KRN} Rd3 (31... Rd5 $16) 32. h4 {[%cal Bh2h4,Bh4h5,Bh5h6,Bh6h7][%mdl 32]} ({Don't play} 32. Nxf7 $6 Rxc3 33. h4 (33. Nxe5 a3 $16) 33... Rc4 $18) 32... Rxc3 (32... f6 $142 33. Ng8 (33. Rxa4 Rd8 $18) 33... Rd8) 33. Rxa4 ({Not} 33. Nxf7 Rc4 $16) 33... Kd7 34. Nxf7 Nc6 35. h5 {Hoping for h6.} Ke6 (35... Ke7 $142 36. Ng5 Rc1+ 37. Kh2 Kf6) 36. Ng5+ {White is clearly winning.} Kf5 {[#]} 37. h6 $1 {Black must now prevent h7.} Ne7 {[#]} (37... Rb3 38. h7) 38. h7 $1 Ng6 (38... Rc1+ 39. Kh2) 39. Nf3 {White threatens Nh4+ and mate.} Kf6 40. Rg4 {Weighted Error Value: White=0.12 (very precise) /Black=0.36} (40. Ra8 $142 Rxf3 41. Rg8) 1-0

