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rnbqkbnr
pppppppp
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PPPPPPPP
RNBQKBNR

 

Start Back 5 Back 1 Forward 1 Forward 5 End Flip Auto Variations controls



 
Daly, Colm   –   O'Connor, Jonathan
f, 2181 (2183) 2148 (2126)
 
A06 Irish Championship 2023 (4.3) 2023.08.08

1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 b6 5. c4 Bb7 6. g3 Bd6 7. cxd5 exd5 8. Bg2 O-O 9. O-O Re8 10. Nc3 Nbd7 11. Rc1 a6 12. d3 Qe7 13. Re1 Rad8 14. Qc2 Ne5 15. Nxe5 Bxe5 16. Ne2 Bxb2 17. Qxb2 c5 18. d4 h5 19. Nf4 h4 20. gxh4 Ne4 21. h5 Rd6 22. f3 Ng5 23. Qf2 Rh6 24. h4 Ne6 25. Nxe6 fxe6 26. dxc5 bxc5 27. e4 d4 28. b4 Rxh5 29. bxc5 e5 30. Bh3 Bc6 31. Kg2 Qxh4 32. Qxh4 Rxh4 33. Rb1 Bb5 34. Rb4 Rh6 35. a4 Bc6 36. a5 Bb5 37. Rc1 Re7 38. Rxb5 axb5 39. c6 Rc7 40. Bd7 Kf7 41. a6 Rh8 42. Rc5 Rb8 43. a7 Ra8 44. Rxe5 Raxa7 45. Rxb5 Rxd7 46. cxd7 Rxd7=

The game is drawn with best play, per the Syzygy tablebase, even after White wins the d-pawn. However Black, at least, does not seem to have been aware of this.

47. Kf2 d3 48. Rb1 Ra7 49. Ke3 Ra3 50. Kd2 Kf6 51. Rb5 g5 52. Rf5+ Kg6 53. Rd5 Kf6 54. Rxd3 Ra2+ 55. Ke3 g4??

Any other move that does not give away the rook draws.

56. fxg4 Ra1 57. Kf4 Rf1+ 58. Rf3 Rg1 59. Rf2 Re1 60. Rf3 Rg1 61. Ke3+?

61. e5+ is the way to proceed.

61... Kg5= 62. Rf8 Re1+ 63. Kd4 Rd1+?

63... Kxg4 and 63... Ra1 are the only two moves that draw, per tablebases, though like many of the changes of fortune that follow, this is less than obvious.

64. Kc5?

64. Ke5! (only move) wins.

64... Re1 65. Kd5 Rd1+?

65... Ra1! (only move) draws.

66. Ke6 Ra1 67. e5?

67. Rg8+! (only move) wins.

67... Ra6+=

(Only move.)

68. Ke7 Ra7+ 69. Ke8 Ra8+ 70. Kf7 Ra7+ 71. Ke6 Ra6+ 72. Kd5 Ra5+ 73. Kd4 Ra4+ 74. Kd3 Ra3+ 75. Kc4 Ra4+ 76. Kc5 Ra5+ 77. Kd6 Ra6+ 78. Kd7 Ra7+ 79. Kc6 Ra6+ 80. Kd5 Ra5+ 81. Ke6 Ra6+ 82. Kf7 Ra7+ 83. Ke8 Ra8+ 84. Ke7 Ra7+ 85. Kd6 Ra6+ 86. Kd5 Ra5+ 87. Kd4 Ra4+ 88. Ke3 Ra3+ 89. Kf2 Ra5?

89... Kxg4= is simplest, but 89... Ra6 (or anywhere else on the a-file except a1 and a8) draws.

90. Rg8+?

White misses his last chance. 90. e6! (only move) wins.

90... Kf4 91. e6 Re5 92. Rg6 Re4 93. Kg2 Re3 94. Kh2 Re1 95. Kh3 Rh1+ 96. Kg2 Re1 97. Kf2 Re4 98. Kg2 Re1 99. Kh2 Re3 100. Kg2 Re1 101. g5 Kf5 102. Kf2 Re5

102... Rxe6= was simpler.

103. Rg8 Rxe6 104. Kg3 Re4 105. Kh3 Re1 106. g6 Rh1+ 107. Kg2 Rh6 108. g7 Kf6 109. Kf3 Rg6 110. Kf4 Rxg7 111. Rxg7 Kxg7

1/2-1/2


Source(s): Lichess (https://lichess.org/study/QX0r4SRg/mjag8b8l).

Event information: Tournament report.

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