Author: Tord Romstad
Date: 08:45:15 09/25/03
In the latest round of the Open Class of the Regensburg Winboard Circuit,
my program (playing black) reached the following position:
[D]r5k/P6p/Q4pp/3p3r/3pb/5P/2P2KPq/R1R2B b - - bm Bxf3;
Because of the strong attack against the white king, my program evaluates
the position as very good for black. Unfortunately, it was not able to
find a forced win quickly enough. The continuation was Qh4+ Kg1 Qf4
(there was a draw here by Qh2+, of course), and my program eventually lost.
When analysing the game with the help of my engine, I found that Bxf3!
seems to win for black. My engine needs 2 minutes and 18 seconds to
find this move when running on an Athlon MP 2.0 GHz (analysis below),
which I find quite disappointing.
How fast do other engines solve this position?
Tord
1 4.02 0.01 671 h5f5 a6e6 g8h8
2 2.56 0.05 4915 h5f5 f2e1 h2h4 e1d1
3 3.22 0.15 15182 h2h4 g2g3 h4h2 f1g2 h5f5 a6e6 g8h8
4 3.22 0.30 32617 h2h4 g2g3 h4h2 f1g2 h5f5 a6e6 g8h8
5 2.95 0.96 140695 h2h4 g2g3 h4h2 f1g2 h5f5 a6e6 g8h8 a1a3
6 <= 2.94 2.35 407456 h2h4 g2g3 h4h2 f1g2 h5f5 a1a3 g8h8 a6d6
6 <= 2.92 2.38 420515 h2h4 g2g3 h4h2 f1g2 h5f5 a1a3 g8h8 a6d6
6 <= 2.89 2.46 441964 h2h4 g2g3 h4h2 f1g2 h5f5 a1a3 g8h8 a6d6
6 >= 2.83 2.51 451143 h2h4 g2g3 h4h2 f1g2 h5f5 a1a3 d4d3 a3d3
e4d3 c2d3
6 <= 2.83 2.66 487752 h2h4 g2g3 h4h2 f1g2 h5f5 a1a3 d4d3 a3d3
e4d3 c2d3
6 2.83 2.66 487752 h2h4 g2g3 h4h2 f1g2 h5f5 a1a3 d4d3 a3d3
e4d3 c2d3
7 <= 2.81 6.16 1176183 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 g8h8 c1h1
7 <= 2.80 6.25 1204921 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 g8h8 c1h1
7 <= 2.77 6.36 1240122 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 g8h8 c1h1
7 >= 2.70 6.41 1249047 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7
7 >= 2.72 6.41 1249316 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7
7 <= 2.75 6.62 1303271 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7
7 >= 2.75 6.62 1303551 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7
7 2.75 6.62 1303551 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7
8 <= 2.73 16.78 3326090 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7 c1h1
8 <= 2.72 17.31 3467308 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7 c1h1
8 <= 2.69 18.43 3730007 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7 c1h1
8 <= 2.61 19.81 4061165 h2h4 g2g3 h4h2 f1g2 h5f5 a6e2 f5f3 e2f3
e4f3 f2f3 g8f7 c2c3
8 <= 2.45 28.24 5809887 h2h4 g2g3 h4h2 f1g2 h5f5 a6e6 g8h8 e6f5
e4f5 c1h1
8 <= 2.19 35.23 7296744 h2h4 g2g3 h4h2 f1g2 h5f5 a6e6 g8h8 e6f5
e4f5 c1h1
8 >= 1.80 35.59 7371214 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 >= 1.81 35.62 7377345 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 >= 1.88 35.65 7385141 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 >= 2.02 35.72 7401812 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 <= 2.17 36.09 7518773 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 <= 2.16 36.53 7652501 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 >= 2.14 36.58 7665816 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 <= 2.14 37.11 7814723 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
8 2.14 37.11 7814723 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 f3f2
9 <= 2.12 78.98 16143475 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 c1h1
9 <= 2.11 83.56 17204527 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 c1h1
9 <= 2.08 88.61 18381921 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 c1h1
9 <= 2.00 98.96 20665968 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 c1h1
9 <= 1.84 117.39 24588293 h2h4 g2g3 h4h2 f1g2 e4f3 a6e6 g8g7 f2f3
h5f5 e6f5 g6f5 c1h1
9 >= 1.59 123.07 25721231 h2h4 g2g3 h4g5 a6e2 e4f3 e2e6 g8g7 f2f3
9 >= 1.61 123.21 25754778 h2h4 g2g3 h4g5 a6e2 e4f3 e2e6 g8g7 f2f3
9 >= 1.67 137.94 28705994 e4f3 a6b7 h2f4 b7a8 g8g7 a8f8 g7f8 a7a8Q
f8g7 a8b7 g7h6 g2f3 f4e3
9 >= 1.81 139.57 29073059 e4f3 a6b7 h2f4 b7a8 g8g7 a8f8 g7f8 a7a8Q
f8g7 a8b7 g7h6 g2f3 f4e3
9 <= 1.83 144.99 30316210 e4f3 a6b7 h2f4 b7a8 g8g7 a8f8 g7f8 a7a8Q
f8g7 a8b7 g7h6 g2f3 f4e3
9 >= 1.83 145.23 30380703 e4f3 a6b7 h2f4 b7a8 g8g7 a8f8 g7f8 a7a8Q
f8g7 a8b7 g7h6 g2f3 f4e3
9 1.83 145.23 30380703 e4f3 a6b7 h2f4 b7a8 g8g7 a8f8 g7f8 a7a8Q
f8g7 a8b7 g7h6 g2f3 f4e3
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