Beating Stockfish 18 on time in a hyperbullet game.

[Henk]

I just downloaded Stockfish 18 today. And see if anything has improved. Before this I was using Stockfish 16.1

But again Skipper still able to win on time.

[pgn]
[Event "Computer Chess Game"]
[Site "GEBRUIK-645EVFP"]
[Date "2026.04.18"]
[Round "-"]
[White "Skipper_15_143"]
[Black "Stockfish 18"]
[Result "1-0"]
[TimeControl "30"]
[Annotator "1. +0.25 1... -0.30"]

1. d4 {+0.25/9} d5 {-0.30/22 1.8} 2. Bf4 {+0.33/7 0.5} c5 {-0.09/20 1.8} 3.
e3 {+0.48/8 0.5} Nc6 {-0.06/17 0.1} 4. Nf3 {+0.60/8 0.5} Nf6 {-0.08/17 0.2}
5. Be2 {+0.60/7 0.5} cxd4 {+0.01/22 1.9} 6. Nxd4 {+0.63/7 0.5} Qb6
{+0.07/19 0.8} 7. Nxc6 {+0.87/7 0.5} bxc6 {+0.06/16 0.2} 8. Qd4
{+0.69/7 0.5} e6 {+0.43/17 1.0} 9. O-O {+0.21/7 0.4} Bc5 {+0.44/18 0.4} 10.
Qa4 {+0.09/7 0.4} O-O {+0.36/15 0.2} 11. Nd2 {+0.11/8 0.4} Re8 {+0.28/21 3}
12. Nf3 {-0.10/7 0.4} a5 {+0.31/17 0.6} 13. b3 {-0.21/8 0.4} Ne4
{+2.05/15 0.2} 14. Be5 {-0.64/8 0.4} f6 {+2.49/19 0.9} 15. Bd4
{+0.16/8 0.4} e5 {+2.53/16 0.1} 16. Bxc5 {-0.24/8 0.4} Qxc5 {+2.55/16 0.3}
17. Bd3 {-0.15/8 0.4} Nc3 {+3.39/15 0.3} 18. Qh4 {-3.20/8 0.4} e4
{+3.31/17 0.4} 19. a4 {-3.23/8 0.4} Qb4 {+4.52/20 1.0} 20. Kh1
{-3.27/8 0.4} exd3 {+4.56/16 0.3} 21. Qxb4 {-3.63/9 0.4} axb4
{+5.40/16 0.4} 22. cxd3 {-3.59/9 0.4} Ba6 {+5.42/17 0.1} 23. Ne1
{-3.83/8 0.4} c5 {+5.51/17 0.2} 24. a5 {-3.74/9 0.3} c4 {+6.20/17 0.3} 25.
dxc4 {-3.46/9 0.3} dxc4 {+6.11/16 0.3} 26. bxc4 {-5.02/8 0.3} b3
{+6.20/19 0.3} 27. Nf3 {-5.60/8 0.3} b2 {+6.25/18 0.2} 28. Rac1
{-5.80/9 0.3} bxc1=Q {+6.35/21 0.9} 29. Rxc1 {-7.45/9 0.3} Na2
{+6.38/19 0.2} 30. Rc2 {-6.70/9 0.3} Nb4 {+6.50/16 0.2} 31. Rc1
{-7.22/9 0.3} Nd3 {+6.44/18 0.1} 32. Rc2 {-7.23/9 0.3} Nb4 {+6.32/21 1.3}
33. Rc1 {-7.34/9 0.3} Nd3 {+6.37/17 0.1} 34. Rc2 {-7.35/9 0.3} Bb7
{+6.27/19 0.9} 35. Ra2 {-7.59/8 0.3} Ne5 {+6.42/18 0.2} 36. Nd2
{-6.97/8 0.3} Ba6 {+6.38/23 1.9} 37. c5 {-6.96/8 0.3} Nd3 {+6.36/19 0.5}
38. Nf3 {-7.56/8 0.3} Nxc5 {+6.39/17 0.3} 39. Rb2 {-8.01/7 0.3} Reb8
{+6.97/18 0.4} 40. Rxb8+ {-9.00/9 0.3} Rxb8 {+6.88/17 0.2} 41. h4
{-7.93/8 0.3} Ne4 {+7.05/17 0.2} 42. Kh2 {-7.86/7 0.3} Nxf2 {+7.05/18 0.2}
43. Kg3 {-8.27/8 0.3} Ne4+ {+7.19/16 0.2} 44. Kf4 {-7.99/7 0.3} Re8
{+7.23/18 0.1} 45. g4 {-8.76/8 0.3} Nd6 {+6.98/21 0.9} 46. h5 {-8.66/7 0.3}
Re4+ {+7.35/15 0.2} 47. Kg3 {-10.11/8 0.3} Rxe3 {+7.48/17 0.1} 48. Kf4
{-10.23/8 0.2} Rd3 {+7.61/16 0.2} 49. Ne1 {-10.25/8 0.2} Rd4+
{+7.56/18 0.5} 50. Kf3 {-10.31/8 0.2} Bb7+ {+7.53/16 0.2} 51. Kg3
{-10.57/8 0.2} Ra4 {+7.76/16 0.4} 52. a6 {-10.54/7 0.3} Ra3+ {+7.63/18 0.3}
53. Kf4 {-10.67/8 0.2} Bxa6 {+7.64/16 0.2} 54. Nc2 {-10.78/8 0.3} Ra4+
{+7.66/16 0.2} 55. Kf3 {-10.94/8 0.2} Bb7+ {+7.76/16 0.2} 56. Kg3
{-12.17/8 0.2} h6 {+8.03/14 0.2} 57. Ne3 {-10.97/8 0.2} Ra3 {+8.07/17 0.2}
58. Kf2 {-10.99/8 0.3} Ra2+ {+99.83/34 0.2} 59. Ke1 {-11.85/8 0.3} Bf3
{+99.73/15 0.2} 60. Nd1 {-15.49/8 0.3}
{White wins on time} 1-0
[/pgn]

[ehenkes]

Where do I get Skipper?

[Jouni]

You seems to play with game in 30 seconds? I played SF18 against Reckless in Cute Chess GUI. No time losses after 100 games (5 simultaneously). Longest game 190 moves here.
[pgn]
[Event "30 seconds"]
[Site "?"]
[Date "2026.04.20"]
[Round "48"]
[White "Reckless010"]
[Black "Stockfish18"]
[Result "1/2-1/2"]
[ECO "B02"]
[GameDuration "00:01:00"]
[Opening "Alekhine's defense"]
[PlyCount "380"]
[TimeControl "30"]
[Variation "Saemisch attack"]

1. e4 {book} Nf6 {book} 2. e5 {book} Nd5 {book} 3. Nc3 {book} Nb6 {book}
4. d4 {book} d6 {book} 5. exd6 {book} Qxd6 {book} 6. Bd3 {book} c6 {book}
7. Nge2 {book} Bg4 {book} 8. f3 {book} Bh5 {book} 9. Ne4 {+1.87/15 0.81s}
Qd8 {-1.38/21 3.2s} 10. c4 {+1.66/17 1.0s} N8d7 {-1.39/19 0.95s}
11. O-O {+1.72/15 0.64s} e6 {-1.28/15 0.26s} 12. Qb3 {+1.82/16 0.55s}
a5 {-1.34/22 3.2s} 13. Bg5 {+2.12/15 1.1s} a4 {-1.56/24 4.1s}
14. Qc3 {+2.12/17 1.7s} f6 {-1.45/15 0.19s} 15. Bf4 {+2.13/16 0.58s}
Bg6 {-1.44/16 0.23s} 16. Rfe1 {+2.18/18 3.8s} e5 {-1.33/16 0.22s}
17. N2g3 {+2.16/18 2.0s} Be7 {-1.69/18 1.0s} 18. dxe5 {+2.20/16 0.46s}
fxe5 {-1.71/15 0.38s} 19. Be3 {+2.35/19 1.4s} O-O {-1.65/17 0.28s}
20. Rad1 {+2.19/18 1.5s} Qe8 {-1.70/18 0.66s} 21. h3 {+2.30/14 0.40s}
Qf7 {-1.54/17 0.69s} 22. Qc2 {+2.38/13 0.35s} Qe6 {-1.52/20 2.2s}
23. b3 {+2.15/18 2.4s} axb3 {-1.68/21 1.4s} 24. axb3 {+2.15/14 0.39s}
Rae8 {-1.66/17 0.74s} 25. Kh2 {+2.35/18 1.2s} Nc8 {-1.53/18 0.46s}
26. Re2 {+2.38/16 0.52s} Bh4 {-1.62/19 0.82s} 27. Ng5 {+2.29/16 0.47s}
Bxd3 {-1.65/15 0.13s} 28. Qxd3 {+2.24/15 0.47s} Bxg5 {-1.57/14 0.13s}
29. Bxg5 {+2.11/14 0.38s} Rf7 {-1.68/16 0.32s} 30. Ne4 {+2.18/16 0.46s}
Qg6 {-1.58/17 0.35s} 31. Bh4 {+2.16/14 0.44s} Nf6 {-1.49/15 0.31s}
32. Qc3 {+2.07/15 0.51s} Qh6 {-1.58/19 1.3s} 33. Bf2 {+2.04/17 2.0s}
Rfe7 {-1.49/13 0.082s} 34. Qb4 {+1.90/13 0.36s} b6 {-1.38/14 0.13s}
35. Bxb6 {+1.70/14 0.53s} Rb7 {-1.41/18 0.67s} 36. Nxf6+ {+1.70/14 0.23s}
Qxf6 {-1.33/14 0.097s} 37. c5 {+1.68/12 0.14s} h6 {-1.39/15 0.35s}
38. Qc4+ {+1.53/15 0.68s} Qf7 {-1.46/14 0.093s} 39. Rde1 {+1.77/15 0.49s}
Nxb6 {-1.23/16 0.11s} 40. cxb6 {+1.72/13 0.11s} Rxb6 {-1.36/16 0.28s}
41. Rxe5 {+1.84/13 0.065s} Rf8 {-1.61/17 0.19s} 42. Re7 {+1.58/14 0.10s}
Qxc4 {-1.40/17 0.17s} 43. bxc4 {+1.63/12 0.054s} Rb2 {-1.50/17 0.084s}
44. Kg3 {+1.57/15 0.22s} Rc2 {-1.49/14 0.12s} 45. R1e4 {+1.68/12 0.055s}
h5 {-1.60/18 0.67s} 46. R7e5 {+1.73/13 0.14s} Rf6 {-1.58/15 0.047s}
47. Re2 {+1.79/12 0.044s} Rxc4 {-1.83/21 0.72s} 48. Rxh5 {+1.71/11 0.068s}
c5 {-1.92/14 0.071s} 49. Rg5 {+1.84/11 0.050s} Kf7 {-2.24/19 0.52s}
50. Ree5 {+2.70/15 0.15s} Rc6 {-2.37/14 0.089s} 51. Rgf5+ {+2.38/12 0.073s}
Kg8 {-2.38/13 0.039s} 52. h4 {+2.58/11 0.035s} Rc7 {-2.65/17 0.26s}
53. h5 {+2.58/11 0.075s} Kh7 {-2.32/12 0.037s} 54. f4 {+2.66/12 0.093s}
Rc2 {-2.40/14 0.049s} 55. Re8 {+2.98/12 0.047s} g6 {-1.94/14 0.071s}
56. Rg5 {+2.56/12 0.13s} gxh5 {-1.75/12 0.073s} 57. Rxh5+ {+2.70/8 0.015s}
Kg6 {-2.05/15 0.066s} 58. Rg5+ {+2.54/11 0.076s} Kh7 {-2.05/14 0.078s}
59. Ree5 {+2.89/9 0.019s} c4 {-2.48/14 0.15s} 60. Rc5 {+3.42/11 0.044s}
Rxc5 {-2.50/15 0.087s} 61. Rxc5 {+3.51/8 0.012s} Kg7 {-2.84/12 0.046s}
62. Kf3 {+3.46/9 0.016s} Kf6 {-2.76/12 0.039s} 63. g4 {+3.76/9 0.008s}
Ke6 {-3.17/15 0.12s} 64. Ke4 {+3.80/9 0.010s} Rc1 {-3.15/14 0.062s}
65. Kd4 {+4.07/9 0.011s} Rg1 {-3.03/13 0.017s} 66. g5 {+4.25/10 0.013s}
Rf1 {-3.33/12 0.039s} 67. Rc6+ {+4.47/9 0.008s} Kd7 {-3.70/12 0.049s}
68. Rf6 {+5.12/8 0.008s} Rc1 {-4.29/15 0.077s} 69. Rf7+ {+5.18/10 0.018s}
Kc6 {-3.69/12 0.020s} 70. Rf5 {+4.66/10 0.026s} Kd6 {-4.05/14 0.039s}
71. Rf6+ {+4.85/9 0.008s} Ke7 {-4.00/11 0.007s} 72. Rc6 {+5.12/7 0.005s}
Rd1+ {-4.34/12 0.046s} 73. Ke5 {+5.51/8 0.005s} Rc1 {-3.98/11 0.020s}
74. Rc7+ {+4.82/8 0.012s} Kd8 {-4.17/12 0.013s} 75. Rc5 {+4.43/9 0.010s}
Ke7 {-3.99/11 0.008s} 76. g6 {+5.09/9 0.006s} c3 {-4.46/15 0.051s}
77. Rc7+ {+5.01/8 0.006s} Kd8 {-4.22/10 0.005s} 78. Rc5 {+5.10/7 0.006s}
Ke7 {-4.37/13 0.019s} 79. Rc7+ {+5.22/8 0.001s} Kd8 {-4.77/11 0.035s}
80. Rc4 {+5.35/8 0.004s} Ke7 {-5.12/12 0.037s} 81. Kf5 {+5.41/7 0.001s}
c2 {-4.85/11 0.006s} 82. Rc6 {+5.45/8 0.004s} Ke8 {-4.59/10 0.019s}
83. Rc8+ {+5.48/8 0.004s} Kd7 {-5.10/12 0.024s} 84. Rc3 {+5.28/8 0.001s}
Ke7 {-5.10/13 0.008s} 85. Rc4 {+5.34/7 0.004s} Kd6 {-4.87/10 0.004s}
86. g7 {+5.93/1 0s} Rg1 {-4.91/11 0.014s} 87. Kf6 {+5.93/1 0s}
Rg4 {-4.92/10 0.003s} 88. Rxc2 {+5.95/1 0s} Rxf4+ {-5.10/10 0.009s}
89. Kg5 {+5.95/1 0.001s} Rb4 {-5.07/12 0.017s} 90. g8=R {+5.99/1 0.002s}
Rb1 {-3.47/15 0.017s} 91. Rgc8 {+6.32/1 0.003s} Ke5 {-3.24/13 0.011s}
92. Kh4 {+6.16/1 0.003s} Ke4 {-3.13/14 0.010s} 93. Kg3 {+6.03/1 0.002s}
Rd1 {-3.28/14 0.011s} 94. Kh2 {+5.99/1 0.001s} Rb1 {-3.29/15 0.011s}
95. Kg3 {+6.03/1 0s} Rb5 {-3.22/12 0.004s} 96. Kh4 {+5.87/1 0.001s}
Kd3 {-2.78/11 0.003s} 97. R2c4 {+5.73/1 0.001s} Rb1 {-3.18/11 0.004s}
98. R4c5 {+5.80/1 0.001s} Rg1 {-3.09/11 0.004s} 99. Rd5+ {+5.92/1 0.002s}
Ke4 {-2.71/13 0s} 100. Rb5 {+5.69/1 0.002s} Rg6 {-2.77/12 0.004s}
101. Ra8 {+5.57/1 0.001s} Rh6+ {-2.82/11 0.003s} 102. Kg4 {+5.50/1 0.002s}
Kd3 {-3.02/13 0.004s} 103. Rd5+ {+5.91/1 0.002s} Ke4 {-2.86/11 0.002s}
104. Rb5 {+5.50/1 0.002s} Rg6+ {-2.73/11 0.004s} 105. Kh4 {+5.33/1 0s}
Rh6+ {-2.64/14 0.003s} 106. Kg5 {+5.11/1 0s} Rh1 {-2.76/10 0.003s}
107. Kg4 {+5.15/1 0.001s} Rf1 {-2.69/12 0.004s} 108. Rb4+ {+5.43/1 0.001s}
Kd5 {-2.76/12 0.003s} 109. Rb5+ {+5.38/1 0.001s} Kc4 {-2.63/11 0.003s}
110. Rab8 {+4.95/1 0.001s} Rg1+ {-2.41/1 0s} 111. Kf5 {+4.98/1 0s}
Ra1 {-2.56/1 0s} 112. R5b7 {+4.92/1 0s} Kd4 {-2.58/1 0s}
113. Rb4+ {+4.94/1 0.001s} Kc5 {-2.58/1 0s} 114. R4b5+ {+4.85/1 0.001s}
Kc4 {-2.47/1 0s} 115. R5b7 {+4.73/1 0.001s} Kd4 {-2.49/1 0s}
116. Rb4+ {+4.76/1 0s} Kc5 {-2.58/1 0s} 117. R8b5+ {+4.56/1 0.001s}
Kd6 {-2.34/9 0.003s} 118. Rd4+ {+5.37/1 0.001s} Kc6 {-2.25/1 0s}
119. Re5 {+4.43/1 0.001s} Rg1 {-2.05/1 0s} 120. Rde4 {+4.71/1 0.002s}
Kb7 {-2.06/1 0s} 121. Re7+ {+4.56/1 0.002s} Kc6 {-2.07/1 0s}
122. Re8 {+4.61/1 0.002s} Kb7 {-2.05/1 0s} 123. Rb4+ {+4.50/1 0.001s}
Kc6 {-1.74/1 0s} 124. Rbe4 {+4.61/1 0.001s} Kb7 {-2.05/1 0s}
125. Rb4+ {+4.61/1 0.001s} Kc6 {-2.08/13 0.002s} 126. Rc8+ {+4.37/1 0.001s}
Kd7 {-0.49/1 0s} 127. Rbc4 {+4.12/1 0.001s} Rf1+ {-1.85/1 0s}
128. Kg6 {+4.19/1 0.002s} Rg1+ {-1.54/1 0s} 129. Kh6 {+4.16/1 0.001s}
Rh1+ {-0.13/1 0s} 130. Kg6 {+3.89/1 0s} Rg1+ {-1.54/1 0s} 131. Kh6 {+4.03/1 0s}
Rh1+ {-0.13/1 0s} 132. Kg5 {+3.76/1 0s} Rg1+ {-1.50/1 0s} 133. Kh4 {+3.95/1 0s}
Rh1+ {-1.56/1 0s} 134. Kg5 {+3.64/1 0.002s} Kd6 {-1.93/9 0.003s}
135. Rd4+ {+4.02/1 0.002s} Ke5 {-1.68/1 0s} 136. Rg4 {+3.30/1 0.002s}
Rd1 {-1.66/1 0s} 137. Rg3 {+3.39/1 0.001s} Ke4 {-1.47/1 0s}
138. Rg4+ {+3.35/1 0.002s} Kd3 {-1.58/1 0s} 139. Rd8+ {+5.52/1 0.002s}
Kc2 {-5.16/1 0s} 140. Rxd1 {+3.42/1 0.001s} Kxd1 {-5.16/1 0s}
141. Kf4 {+4.30/1 0.002s} Ke1 {-4.89/1 0s} 142. Rg1+ {+4.53/1 0.001s}
Ke2 {-4.85/1 0s} 143. Rg2+ {+4.75/1 0.001s} Kf1 {-4.38/1 0s}
144. Rd2 {+4.86/1 0.001s} Ke1 {-4.37/1 0s} 145. Ra2 {+4.52/1 0.001s}
Kf1 {-4.72/1 0s} 146. Rd2 {+4.86/1 0.001s} Ke1 {-4.37/1 0s}
147. Ra2 {+4.52/1 0.001s} Kf1 {-4.63/1 0s} 148. Ra8 {+4.80/1 0.001s}
Kg2 {-4.53/1 0s} 149. Rg8+ {+4.62/1 0.001s} Kh1 {-4.16/1 0s}
150. Rh8+ {+4.64/1 0.001s} Kg2 {-4.05/1 0s} 151. Rg8+ {+4.52/1 0.001s}
Kh1 {-4.07/1 0s} 152. Rh8+ {+4.54/1 0.001s} Kg2 {-3.96/1 0s}
153. Ra8 {+4.11/1 0.001s} Kh3 {-4.30/1 0s} 154. Rc8 {+3.99/1 0s}
Kg2 {-4.41/1 0s} 155. Rc2+ {+4.18/1 0s} Kf1 {-4.39/16 0.003s}
156. Rc6 {+4.37/1 0.001s} Ke2 {-4.53/1 0s} 157. Rc2+ {+4.42/1 0.001s}
Kd1 {-4.27/1 0s} 158. Rc7 {+3.57/1 0.001s} Kd2 {-4.30/1 0s}
159. Rd7+ {+3.73/1 0.001s} Ke2 {-4.13/1 0s} 160. Rd4 {+3.93/1 0.001s}
Kf2 {-4.28/1 0s} 161. Rc4 {+3.82/1 0.001s} Ke2 {-4.12/1 0s}
162. Rc2+ {+4.15/1 0.002s} Kd1 {-4.03/1 0s} 163. Rc7 {+3.36/1 0.001s}
Kd2 {-4.02/1 0s} 164. Rd7+ {+3.51/1 0.001s} Ke2 {-3.88/1 0s}
165. Rd4 {+3.70/1 0.001s} Kf2 {-4.03/1 0s} 166. Rc4 {+3.59/1 0s}
Ke2 {-3.87/1 0s} 167. Kf5 {+3.52/1 0.001s} Ke1 {-3.53/13 0.004s}
168. Rc8 {+3.38/1 0.001s} Kd1 {-3.44/1 0s} 169. Rf8 {+3.17/1 0.001s}
Ke2 {-3.69/1 0s} 170. Ke4 {+3.25/1 0.001s} Kd2 {-3.51/1 0s}
171. Rd8+ {+3.43/1 0.001s} Kc1 {-3.50/1 0s} 172. Rf8 {+3.28/1 0.002s}
Kb2 {-3.27/1 0s} 173. Rf4 {+3.03/1 0.002s} Kb3 {-3.15/1 0s}
174. Rf3+ {+3.00/1 0.001s} Kc2 {-3.09/1 0s} 175. Rf2+ {+2.96/1 0.002s}
Kb3 {-2.85/1 0s} 176. Rf3+ {+2.91/1 0.001s} Kc2 {-2.99/1 0s}
177. Rf2+ {+2.88/1 0.001s} Kb3 {-2.85/1 0s} 178. Rf8 {+2.71/1 0.001s}
Kb2 {-2.98/1 0s} 179. Rf4 {+2.76/1 0.001s} Kb3 {-2.86/1 0s}
180. Kf5 {+2.64/1 0.001s} Ka2 {-3.03/1 0s} 181. Rg4 {+2.68/1 0.001s}
Kb3 {-2.77/1 0s} 182. Ke5 {+2.57/1 0.001s} Kb2 {-2.98/1 0s}
183. Rg2+ {+2.75/1 0.001s} Kb3 {-2.83/1 0s} 184. Rg4 {+2.57/1 0.001s}
Kb2 {-2.88/1 0s} 185. Rg2+ {+2.66/1 0.001s} Kb3 {-2.83/1 0s}
186. Rg3+ {+2.40/1 0.001s} Kc4 {-2.56/1 0s} 187. Rg4+ {+2.85/1 0.001s}
Kb3 {-2.61/1 0s} 188. Kd5 {+2.33/1 0.001s} Kb2 {-2.44/1 0s}
189. Rg2+ {+2.70/1 0.002s} Kb3 {-2.35/1 0s} 190. Rg4 {+2.24/1 0.002s}
Ka2 {0.00/1 0s, Draw by fifty moves rule} 1/2-1/2
[/pgn]

[Henk]

Skipper is about the same strength as fairy-max or It might even play worse. So no way it can draw against Stockfish 18. Looks like if it can play a game of about 60 moves or more it will win on time in a hyperbullet game. Maybe because I am using winboard. Or it may be windows system maintenance. I don't know.

By the way I had to play about 20=30 games to get one where it won on time. So it is not very easy to reproduce.

[Henk]

As I said Skipper loosing all games under 60 moves against Stockfish 18.

This is the shortest I encountered sofar.

[pgn]
[Event "Computer Chess Game"]
[Site "GEBRUIK-645EVFP"]
[Date "2026.04.21"]
[Round "-"]
[White "Skipper_15_143"]
[Black "Stockfish 18"]
[Result "0-1"]
[TimeControl "30"]
[Annotator "1. +0.34 1... -0.03"]

1. Nc3 {+0.34/9} d5 {-0.03/19 0.9} 2. d4 {-0.02/7 0.5} Nf6 {-0.03/16 0.1}
3. Bf4 {+0.07/9 0.5} e6 {-0.09/24 3} 4. e3 {+0.48/8 0.5} Bb4 {+0.24/15 0.3}
5. Be2 {+0.78/7 0.5} Ne4 {+1.24/17 0.3} 6. Qd3 {+0.77/7 0.4} c5
{+1.47/16 0.3} 7. dxc5 {+0.60/7 0.5} Qa5 {+1.79/16 0.3} 8. Qb5+
{+0.35/7 0.4} Nd7 {+1.90/16 0.6} 9. Kf1 {+0.18/7 0.4} Nd2+ {+4.34/19 1.0}
10. Ke1 {+0.00/9 0.4} Bxc3 {+4.34/14 0.2} 11. bxc3 {-0.99/9 0.4} Qxc3
{+5.38/16 0.3} 12. Rd1 {-327.65/10 0.4} Nf3+ {+99.95/149 0.7} 13. Kf1
{-327.65/12 0.5} Qe1+ {+99.97/217 0.5} 14. Rxe1 {-327.65/16 0.5} Nd2#
{+99.99/229 0.7}
{Xboard adjudication: Checkmate} 0-1
[/pgn]

[Henk]

Even 62 moves might not be enough to guarantee a win on time.
Skipper lost this game yesterday while Stockfish 18 had two seconds left over on the clock.


[pgn]
[Event "Computer Chess Game"]
[Site "GEBRUIK-645EVFP"]
[Date "2026.04.23"]
[Round "-"]
[White "Skipper_15_143"]
[Black "Stockfish 18"]
[Result "0-1"]
[TimeControl "30"]
[Annotator "1. +0.37 1... -0.03"]

1. Nc3 {+0.37/5} d5 {-0.03/19 1.0} 2. e4 {+0.04/6 0.5} d4 {+0.41/14 0.3} 3.
Nb5 {-0.07/6 0.5} e5 {+0.78/18 1.0} 4. Qh5 {+0.44/5 0.5} Nd7 {+1.37/18 1.4}
5. Bc4 {+0.19/6 0.5} g6 {+1.53/18 0.3} 6. Qf3 {+0.51/7 0.5} Ngf6
{+1.55/17 0.2} 7. Qb3 {+0.60/7 0.5} Be7 {+2.11/16 0.5} 8. Bxf7+
{+1.34/7 0.4} Kf8 {+2.33/15 0.2} 9. d3 {+1.72/7 0.5} Kg7 {+2.44/15 0.4} 10.
Nf3 {+2.11/6 0.4} Nc5 {+2.60/15 0.3} 11. Qc4 {+0.31/6 0.4} a6
{+2.51/15 0.3} 12. Nbxd4 {+0.15/6 0.4} exd4 {+2.82/16 0.2} 13. e5
{+0.66/6 0.4} Nfd7 {+3.06/15 0.5} 14. e6 {+0.16/6 0.4} Nb6 {+2.97/15 0.5}
15. Qxd4+ {+0.58/7 0.4} Qxd4 {+2.93/18 0.3} 16. Nxd4 {+0.12/7 0.4} Rd8
{+3.04/18 0.2} 17. Be3 {+0.65/7 0.4} Nd5 {+2.96/18 0.5} 18. O-O
{+0.80/5 0.4} Nxe3 {+3.19/15 0.4} 19. fxe3 {-0.15/7 0.4} Rd6 {+3.17/17 0.1}
20. Be8 {+0.62/6 0.4} Bxe6 {+3.88/18 0.7} 21. b4 {-1.02/6 0.4} Bg5
{+4.13/17 0.8} 22. Kh1 {-0.79/6 0.4} Nxd3 {+4.73/19 2.5} 23. Nxe6+
{-0.84/6 0.3} Rxe6 {+4.68/17 0.2} 24. Bf7 {-1.70/7 0.3} Rf6 {+4.94/18 1.2}
25. cxd3 {-1.90/7 0.3} Rxf7 {+4.84/16 0.5} 26. Rxf7+ {-1.68/8 0.3} Kxf7
{+4.87/18 0.5} 27. e4 {-2.60/7 0.3} Rd8 {+4.84/18 1.0} 28. Rd1
{-2.64/6 0.3} Ke7 {+4.77/16 0.7} 29. d4 {-2.48/6 0.3} Be3 {+4.96/16 0.2}
30. d5 {-2.24/7 0.3} Kd6 {+4.99/17 0.1} 31. Rd3 {-2.55/7 0.3} Bb6
{+5.05/18 0.5} 32. Rc3 {-2.67/6 0.3} Ke5 {+5.24/20 0.7} 33. a4
{-3.99/7 0.3} Rd7 {+5.44/19 0.4} 34. Rc2 {-4.81/6 0.3} Kxe4 {+5.99/18 0.3}
35. g4 {-4.95/7 0.3} Kxd5 {+6.16/15 0.2} 36. g5 {-5.00/8 0.3} Bd4
{+6.27/18 0.4} 37. a5 {-5.04/8 0.3} Re7 {+6.49/21 0.7} 38. Kg2
{-4.88/8 0.3} c6 {+6.40/18 0.1} 39. Kf3 {-4.87/6 0.3} Re3+ {+6.65/21 0.9}
40. Kf4 {-6.03/7 0.3} Rb3 {+6.85/14 0.2} 41. Re2 {-6.34/8 0.3} Rxb4
{+6.89/16 0.1} 42. Kf3 {-6.62/8 0.3} Be5 {+7.18/17 0.4} 43. Rd2+
{-6.62/7 0.3} Rd4 {+7.41/18 0.3} 44. Ra2 {-7.59/8 0.2} c5 {+7.71/16 0.2}
45. h3 {-7.20/8 0.2} c4 {+7.83/19 0.2} 46. Rc2 {-7.28/8 0.2} c3
{+8.02/18 0.1} 47. Rc1 {-7.64/8 0.2} Rd3+ {+8.73/19 0.6} 48. Kg4
{-7.64/8 0.2} Ke6 {+9.51/15 0.2} 49. Rc2 {-8.44/8 0.2} Rd2 {+9.87/16 0.1}
50. Rc1 {-10.61/8 0.2} Rf2 {+12.79/25 0.1} 51. h4 {-7.66/8 0.3} c2
{+99.71/29 0.1} 52. Re1 {-9.20/7 0.3} Rf4+ {+99.73/32 0.3} 53. Kh3
{-10.73/8 0.2} Rc4 {+99.75/31 0.2} 54. Kg2 {-10.85/7 0.3} c1=Q
{+99.79/36 0.2} 55. Rxc1 {-14.18/10 0.3} Rxc1 {+99.81/40 0.2} 56. Kf3
{-13.90/9 0.3} Kd5 {+99.85/44 0.2} 57. Ke2 {-12.84/8 0.3} Ke4
{+99.89/49 0.4} 58. Kd2 {-12.64/8 0.3} Bf4+ {+99.91/63 0.4} 59. Ke2
{-14.18/9 0.3} Be3 {+99.93/106 0.3} 60. h5 {-14.23/8 0.3} Rc2+
{+99.95/163 0.4} 61. Kf1 {-327.65/8 0.3} Kf3 {+99.97/79 0.5} 62. h6
{-327.65/9 0.3} Rc1# {+99.99/36 0.3}
{Xboard adjudication: Checkmate} 0-1
[/pgn]