Fun endgame

[xr_a_y]

In a very fast TC match against Winter0.6, Minic just won this theoreticlaly draw endgame (https://syzygy-tables.info/?fen=8/7B/5k ... _b_-_-_0_1)

[d] 8/7B/5k2/8/4P3/3N2P1/6K1/q7 b - - 1 73

ending with KNB versus K.

Another "fun" thing is the rook under-promotion by Minic here

[d] 8/4k1PK/8/4PB2/6N1/8/8/3q4 w - - 3 109

Because if a queen is made, then black Qh1 is a draw! after queen sac on h6!

[d] 6Q1/4k3/6Kq/4PB2/6N1/8/8/8 w - - 3 111

Anayway, Stockfish goes Nh6 and then promote to queen for a mate in 14 ...

Here is the full game (with many blunders at 40/5sec TC ...)

[pgn]
[Event "My Tournament"]
[Site "?"]
[Date "2019.12.27"]
[Round "3"]
[White "Minic"]
[Black "Winter_0.6"]
[Result "1-0"]
[ECO "B40"]
[Opening "Sicilian"]
[PlyCount "275"]
[TimeControl "40/5"]
[Variation "Anderssen Variation"]

1. e4 {book} c5 {book} 2. Nf3 {book} e6 {book} 3. d4 {book} cxd4 {book}
4. Nxd4 {book} Nf6 {book} 5. Nc3 {book} d6 {book} 6. f4 {book} Be7 {book}
7. Bb5+ {book} Nfd7 {book} 8. f5 {book} O-O {book} 9. fxe6 {+0.72/11 0.15s}
Ne5 {-0.52/11 0.18s} 10. exf7+ {+0.76/13 0.15s} Rxf7 {-0.57/11 0.17s}
11. Rf1 {+0.73/13 0.15s} Qf8 {-0.58/10 0.23s} 12. Nd5 {+1.10/10 0.11s}
Bg4 {-0.71/10 0.23s} 13. Rxf7 {+1.74/11 0.092s} Qxf7 {-1.09/11 0.21s}
14. Be2 {+1.05/15 0.47s} Bc8 {-1.22/10 0.20s} 15. Nb5 {+1.72/10 0.15s}
Nbc6 {-0.89/11 0.13s} 16. Bh5 {+1.40/10 0.11s} Qf8 {-1.01/10 0.17s}
17. Nbc7 {+1.59/10 0.15s} Rb8 {-0.83/9 0.19s} 18. Be3 {+1.38/10 0.15s}
Bh4+ {-0.82/8 0.19s} 19. g3 {+1.47/10 0.14s} Bd8 {-0.64/10 0.12s}
20. c3 {+1.36/10 0.12s} Kh8 {-0.62/9 0.18s} 21. Nb5 {+1.61/12 0.15s}
a6 {-0.59/10 0.18s} 22. Nd4 {+1.42/12 0.15s} Bd7 {-0.84/11 0.17s}
23. Be2 {+1.37/12 0.15s} Rc8 {-0.99/10 0.17s} 24. Rc1 {+1.38/10 0.14s}
Qf7 {-0.83/9 0.16s} 25. Nf3 {+1.21/11 0.15s} Nxf3+ {-0.63/10 0.13s}
26. Bxf3 {+1.06/11 0.087s} Ne5 {-0.70/10 0.14s} 27. Bf4 {+1.03/13 0.43s}
Qe6 {-0.39/9 0.14s} 28. Bg2 {+0.95/11 0.13s} Qe8 {-0.55/9 0.14s}
29. h3 {+1.08/11 0.13s} Be6 {-0.01/9 0.13s} 30. Rb1 {+1.16/11 0.26s}
Qg6 {+0.08/7 0.076s} 31. Kf2 {+0.56/12 0.12s} b5 {+0.06/7 0.13s}
32. h4 {+0.67/10 0.12s} a5 {+0.04/9 0.078s} 33. Kg1 {+1.03/10 0.096s}
b4 {-0.13/9 0.12s} 34. h5 {+1.32/10 0.093s} Qf7 {-0.32/9 0.12s}
35. Bxe5 {+0.92/11 0.11s} dxe5 {-0.33/10 0.089s} 36. Qe2 {+0.61/11 0.14s}
bxc3 {0.00/9 0.074s} 37. bxc3 {+1.04/11 0.097s} Be7 {-0.08/9 0.15s}
38. Kh2 {+0.97/10 0.086s} Bc5 {-0.19/11 0.12s} 39. Rf1 {+0.67/13 0.18s}
Qd7 {-0.64/11 0.13s} 40. h6 {+0.78/13 0.12s} Bg4 {-0.53/11 0.28s}
41. Bf3 {+0.80/12 0.11s} Be6 {-0.57/12 0.17s} 42. Qd2 {+0.81/13 0.13s}
gxh6 {-0.62/11 0.17s} 43. Qxh6 {+0.87/12 0.13s} Rf8 {-0.54/11 0.093s}
44. a4 {+1.08/15 0.40s} Bg8 {-0.35/11 0.16s} 45. Bg2 {+0.84/11 0.082s}
Qg7 {-0.39/11 0.16s} 46. Qxg7+ {+0.97/14 0.12s} Kxg7 47. Rf5 {+1.27/15 0.60s}
Bd6 {-0.30/13 0.096s} 48. Rxf8 {+0.20/13 0.063s} Bxf8 {-0.32/13 0.13s}
49. Bf3 {+0.30/12 0.077s} Bc5 {-0.04/13 0.11s} 50. Bg4 {+0.32/13 0.076s}
Bf7 {-0.58/11 0.072s} 51. Kg2 {+0.47/16 0.072s} Kh6 {-0.41/13 0.12s}
52. Bd7 {+0.50/16 0.11s} Kg5 {-0.42/14 0.12s} 53. Kf3 {+0.61/14 0.11s}
Bg6 {-0.37/13 0.070s} 54. c4 {+0.23/15 0.096s} Bf7 {-0.44/13 0.12s}
55. Bf5 {+0.20/14 0.087s} Kh6 {-0.38/12 0.12s} 56. Kg2 {+0.09/15 0.11s}
Be8 {0.00/13 0.089s} 57. Nf6 {-0.05/15 0.11s} Bxa4 {0.00/13 0.12s}
58. Ng4+ {-0.01/16 0.11s} Kg7 {+0.20/13 0.12s} 59. Nxe5 {-0.01/16 0.066s}
Bd4 {+0.49/13 0.12s} 60. Nf3 {+0.01/17 0.12s} Be3 {+0.62/13 0.12s}
61. Ne5 {-0.34/12 0.080s} Bd1 {+0.98/13 0.083s} 62. Nd3 {-0.57/13 0.12s}
Be2 {+1.03/14 0.12s} 63. Nf4 {-1.02/14 0.12s} Bxc4 {+1.10/13 0.12s}
64. Bd7 {-1.12/13 0.12s} Bb3 {+1.50/13 0.11s} 65. Nd5 {-1.44/12 0.12s}
Bd4 {+1.81/13 0.088s} 66. Nc7 {-1.60/13 0.076s} Kf6 {+2.07/13 0.10s}
67. Nb5 {-1.61/14 0.12s} Bb2 {+2.51/12 0.12s} 68. Bf5 {-2.67/16 0.38s}
a4 {+2.81/13 0.072s} 69. Bxh7 {-2.67/19 0.097s} Bc4 {+3.30/14 0.13s}
70. Nd6 {-2.51/11 0.088s} a3 {+3.30/15 0.081s} 71. Nxc4 {-2.32/15 0.099s}
a2 {+3.34/16 0.12s} 72. Nxb2 {-2.19/17 0.057s} a1=Q {+3.30/16 0.13s}
73. Nd3 {-2.19/18 0.061s} Qd4 {+3.30/16 0.11s} 74. Nf4 {-2.17/17 0.065s}
Qb2+ {+3.30/17 0.097s} 75. Kh3 {-2.08/15 0.088s} Qf2 {+3.21/16 0.10s}
76. Bf5 {-2.08/18 0.12s} Qf1+ {+3.05/17 0.17s} 77. Kg4 {-2.08/17 0.081s}
Qd1+ {+3.05/19 0.14s} 78. Kh4 {-2.08/20 0.14s} Qh1+ {+3.05/17 0.25s}
79. Kg4 {-1.85/17 0.14s} Qe1 {+3.05/20 0.18s} 80. Kh4 {-1.78/18 0.10s}
Qg1 {+3.05/21 0.22s} 81. Nd5+ {-1.93/15 0.076s} Ke5 {+3.05/17 0.075s}
82. g4 {-0.72/15 0.13s} Qh2+ {+3.05/13 0.075s} 83. Kg5 {-0.63/18 0.13s}
Qh8 {+2.55/13 0.11s} 84. Kg6 {-0.48/21 0.078s} Qe8+ {+2.42/14 0.13s}
85. Kh6 {-0.49/18 0.12s} Qc6+ {+2.42/16 0.13s} 86. Kg7 {-0.49/20 0.13s}
Qb7+ {+2.42/16 0.072s} 87. Kg6 {-0.42/18 0.12s} Qa6+ {+2.31/15 0.11s}
88. Kh5 {-0.39/21 0.080s} Qa1 {+2.19/14 0.13s} 89. g5 {-0.31/19 0.13s}
Qh1+ {+2.16/16 0.082s} 90. Kg6 {-0.33/17 0.13s} Qc1 {+2.16/17 0.13s}
91. Kh6 {+0.01/17 0.079s} Kd6 {+1.52/13 0.13s} 92. Kg6 {+0.01/21 0.086s}
Qd2 {+1.34/16 0.13s} 93. Kf6 {+0.01/22 0.089s} Qd4+ {+0.78/17 0.11s}
94. Kf7 {+0.01/25 0.10s} Qa7+ {+0.74/17 0.082s} 95. Kg6 {+0.01/26 0.10s}
Ke5 {+1.20/13 0.13s} 96. Kh6 {+0.01/23 0.089s} Qb8 {+0.42/16 0.091s}
97. Kg7 {+0.01/27 0.083s} Qb2 {+0.35/15 0.11s} 98. g6 {+0.01/25 0.40s}
Kd6+ {0.00/16 0.074s} 99. Kh7 {+1.49/14 0.13s} Qh2+ {0.00/18 0.095s}
100. Kg8 {+1.41/15 0.13s} Qh5 {0.00/18 0.14s} 101. Kf7 {+4.46/20 0.66s}
Ke5 {-3.19/14 0.10s} 102. Nf6 {+4.94/13 0.059s} Qg5 {-2.36/14 0.14s}
103. Ng4+ {+5.16/17 0.11s} Kd6 {-1.60/13 0.096s} 104. g7 {+5.28/17 0.11s}
Qe7+ {-5.22/13 0.077s} 105. Kg6 {+5.23/12 0.10s} Qe8+ {-5.42/14 0.074s}
106. Kh6 {+2.71/10 0.11s} Qd8 {-5.42/14 0.13s} 107. e5+ {+2.65/10 0.079s}
Ke7 {-4.58/12 0.15s} 108. Kh7 {+9.05/10 0.11s} Qd1 {-9.30/12 0.14s}
109. g8=R {+5.44/12 0.065s} Qf3 {-5.47/14 0.15s} 110. Rg7+ {+5.80/15 0.11s}
Kf8 {-7.86/15 0.15s} 111. Kg6 {+13.60/15 0.11s} Qg3 {-10.91/14 0.16s}
112. e6 {+15.91/11 0.11s} Qg1 {-18.58/15 0.16s} 113. Rf7+ {+23.01/10 0.084s}
Ke8 {-29.94/13 0.084s} 114. Kg7 {+67.91/15 0.12s} Qd4+ {-30.92/14 0.18s}
115. Nf6+ {+68.31/18 0.076s} Kd8 {-M24/12 0.18s} 116. Rd7+ {+68.41/21 0.078s}
Qxd7+ {-22.97/13 0.11s} 117. exd7 {+68.61/23 0.11s} Kc7 {-23.37/12 0.21s}
118. d8=Q+ {+68.61/27 0.10s} Kxd8 {-8.29/15 0.18s} 119. Nd5 {+68.71/33 0.094s}
Ke8 120. Be6 {+68.71/38 0.14s} Kd8 121. Bh3 {+68.71/39 0.075s} Ke8
122. Bf5 {+68.71/40 0.096s} Kd8 123. Kf6 {+68.71/40 0.074s} Ke8
124. Nb6 {+68.71/39 0.13s} Kd8 {-8.42/13 0.070s} 125. Ke6 {+68.91/30 0.12s}
Kc7 {-8.42/15 0.089s} 126. Na4 {+M29/33 0.081s} Kb7 {-8.42/15 0.099s}
127. Bd3 {+M23/31 0.075s} Kc6 {-8.42/17 0.10s} 128. Be2 {+M25/30 0.078s}
Kc7 {-M26/16 0.11s} 129. Bb5 {+M21/30 0.099s} Kd8 {-M24/17 0.12s}
130. Kd6 {+M17/32 0.081s} Kc8 131. Nc5 {+M15/28 0.083s} Kd8 {-M20/16 0.10s}
132. Bc6 {+M13/27 0.084s} Kc8 133. Bd7+ {+M11/25 0.081s} Kb8 {-M10/16 0.079s}
134. Kc6 {+M9/24 0.083s} Ka7 {-M8/17 0.14s} 135. Kc7 {+M7/37 0.085s} Ka8
136. Kb6 {+M5/62 0.085s} Kb8 137. Na6+ {+M3/121 0.026s} Ka8
138. Bc6# {+M1/121 0.003s, White mates} 1-0
[/pgn]