Rybka couldn't solve this..Any sggestions which engine can?

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AdminX
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Re: Rybka couldn't solve this..Any sggestions which engine c

Post by AdminX »

Yace on my Core 2 Duo Laptop (T5500) 1.66 Ghz with 4 GB of Ram gives:

[d]6KB/6P1/6b1/8/6P1/8/P2k2P1/2b5 b - - 0 1

Analysis by Yace 0.99.87:

1...Ba3 2.g5 Ke3 3.g4 Bd6 4.a4 Bb4 5.a5 Bxa5
= (-0.09) Depth: 6/10 00:00:00 4kN
= (-0.19) Depth: 12/21 00:00:01 2878kN

1...Bb2 2.a4 Bc3 3.g5 Ke3 4.a5 Bxa5 5.g3 Kf3 6.Kf8 Bb4+ 7.Kg8 Be4
= (-0.20 !) Depth: 12/21 00:00:02 3672kN
= (-0.21) Depth: 12/22 00:00:02 4125kN

1...Ke3 2.a4 Kf4 3.a5 Kxg4 4.a6 Be3 5.Kf8 Bc5+ 6.Kg8 Be3 7.Kf8 Bc5+ 8.Kg8 Be3
= (-0.22 !) Depth: 12/23 00:00:03 5822kN
=/+ (-0.41) Depth: 14/27 00:00:13 23342kN

1...Ba3 2.g5 Kc3 3.g4 Kb4 4.Kf8 Kc4+ 5.Kg8 Kc5 6.Kf8 Kd5+ 7.Kg8 Kd6 8.Kf8 Ke6+ 9.Kg8 Be4 10.g6 Bxg6
=/+ (-0.54 !) Depth: 14/27 00:00:15 26492kN
-+ (-#20) Depth: 22/44 00:24:59 2548mN
"Good decisions come from experience, and experience comes from bad decisions."
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Ted Summers
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AdminX
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Re: Rybka couldn't solve this..Any sggestions which engine c

Post by AdminX »

Movei on my Core 2 Duo (T5500) 1.66 Ghz with 4 GB of Ram gives:

[d]6KB/6P1/6b1/8/6P1/8/P2k2P1/2b5 b - - 0 1

Analysis by Movei00_8_438:

1...Ba3 2.g5 Kc3 3.g3 Kc4 4.g4 Kc5 5.Kf8 Kd5+ 6.Kg8 Kd6 7.Kf8 Ke6+ 8.Kg8 Be4 9.g6 Bxg6 10.g5 Be4 11.g6 Kf6 12.Kh7 Bxg6+ 13.Kg8 Bb4 14.a3 Be7 15.a4 Be4 16.a5 Kg6 17.a6
-/+ (-0.75) Depth: 6 00:00:00 5kN
+- (#2733) Depth: 20 00:03:53 178mN

[d]6KB/4b1P1/P5k1/8/4b3/8/8/8 b - - 0 17
Final Position
"Good decisions come from experience, and experience comes from bad decisions."
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royb
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Re: Rybka couldn't solve this..Any sggestions which engine c

Post by royb »

Glaurung 2.2 on my Q6700 at 2.67 GHz (4 cpus) shows this:

43 -2.01 1.... Ba3 2.g5 Kd3 3.g4 Bc5 4.a4 Ke4 5.a5 Kf4 6.a6 Kxg5 7.a7 Bxa7 8.Kf8 Bc5+ 9.Kg8 Be4 10.Kf7 Bd5+ 11.Ke8 Bg8 12.Kd8 Kxg4 13.Ke8 Ba3 14.Kd8 Kf5 15.Kd7 Kf6 16.Kd8 Ke6 17.Kc7 Bc5 18.Kc6 Bd4 19.Kc7 Ke7 20.Kc6 Be5 21.Kc5 Kd7 22.Kb5 Kd6 23.Ka4 Bd4 24.Kb5 Bc5 25.Ka6 Ke6 26.Kb5 (316.06)
44 -2.03 1.... Ba3 2.g5 Kd3 3.g4 Bc5 4.a4 Ke4 5.a5 Kf4 6.a6 Kxg5 7.a7 Bxa7 8.Kf8 Bc5+ 9.Kg8 Be4 10.Kf7 Bd5+ 11.Ke8 Bg8 12.Kd8 Kxg4 13.Ke8 Ba3 14.Kd8 Kf5 15.Kd7 Kf6 16.Kd8 Ke6 17.Kc7 Bc5 18.Kc6 Bd4 19.Kc7 Ke7 20.Kc6 Be5 21.Kc5 Kd7 22.Kb5 Kd6 23.Ka4 Bd4 24.Kb5 Bc5 25.Ka6 Be3 26.Kb5 Ke7 (397.33)
45 M-17 1.... Ba3 2.g5 Kc3 3.g4 Kb4 4.Kf8 Kb5+ 5.Kg8 Kc5 6.Kf8 Kd5+ 7.Kg8 Kd6 8.Kf8 Ke6+ 9.Kg8 Bd3 10.g6 Bxg6 11.g5 Bf5 12.g6 Kf6 13.Kh7 Bxg6+ 14.Kg8 Bc5 15.a4 Bd3 16.a5 Kg6 17.a6 Bc4# (632.28)

Roy
Ryan Benitez
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Re: Rybka couldn't solve this..Any sggestions which engine c

Post by Ryan Benitez »

Using 1 cpu on my MacBook

FEN: 6KB/6P1/6b1/8/6P1/8/P2k2P1/2b5 b - - 0 1

Fruit235m-64:
1 00:00 58 0 -1.61 Kd2c3 a2a4
2 00:00 713 0 -1.51 Kd2c3 Kg8f8 Bc1a3+ Kf8g8
3 00:00 1.379 0 -1.29 Kd2c3 a2a4 Kc3d4 a4a5 Bg6e4 a5a6 Be4d5+ Kg8f8 Bc1a3+ Kf8e8
4 00:00 1.974 0 -1.15 Kd2c3 a2a4 Kc3d4 a4a5 Bg6d3 Kg8f8 Bc1a3+ Kf8e8 Bd3b5+ Ke8d8
5 00:00 2.765 0 -1.15 Kd2c3 a2a4 Kc3d4 a4a5 Bg6d3 Kg8f8 Bc1a3+ Kf8e8 Bd3c4
6 00:00 5.004 0 -1.44 Kd2c3 a2a4 Kc3d4 a4a5 Bg6d3 Kg8f7 Bd3c4+ Kf7f6 Bc4d5 a5a6
6 00:00 9.282 0 -1.20 Kd2d3 a2a4 Bg6e4 Kg8f8 Bc1a3+ Kf8e8 Be4c6+ Ke8d8 Bc6d5 a4a5
7 00:00 12.194 0 -1.14 Kd2d3 a2a4 Bg6e4 Kg8f8 Bc1h6 g2g3 Kd3d4 a4a5
8 00:00 21.215 0 -1.02 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 a5a6 Kc4d5 g4g5 Kd5e6 g2g3 Bg6f7+ Kg8h7
9 00:00 33.138 0 -0.76 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 a5a6 Kc4d5 g4g5 Kd5e6 g2g3 Be3xg5 a6a7 Bg6e4 Kg8f8 Bg5e7+ Kf8g8
10 00:00 53.759 0 -0.28 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 g3g4 Be3xg5 a5a6 Bg5e3 Kg8f8 Be3c5+ Kf8g8 Bg6f7+ Kg8h7
11 00:00 61.222 0 -0.28 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 g3g4 Be3xg5 a5a6 Bg5e3 Kg8f8 Be3c5+ Kf8g8 Bg6f7+ Kg8h7
12 00:00 82.438 0 -0.28 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 a5a6 Bg6d3 g5g6 Bd3xg6 g3g4 Be3c5 g4g5 Bg6f7+ Kg8h7
13 00:00 111.082 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 a5a6 Bg6d3 g5g6 Ke6f6 Kg8h7 Bd3xg6+ Kh7g8 Bg6f7+ Kg8h7 Bf7g6+
14 00:00 147.422 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 Kg8f8 Be3c5+ Kf8g8 Bc5e3
15 00:00 181.238 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 Kg8f8 Be3c5+ Kf8g8 Bc5e3
16 00:00 235.807 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 g2g3 Kc4d5 g4g5 Kd5e6 Kg8f8 Be3c5+ Kf8g8 Bc5e3
17 00:00 415.973 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
18 00:00 543.186 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
19 00:00 733.039 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
20 00:00 1.010.292 0 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
21 00:01 1.491.720 1.355.067 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
22 00:01 2.272.642 1.434.842 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
23 00:02 3.304.098 1.628.798 0.00 Kd2d3 a2a4 Kd3c4 a4a5 Bc1e3 Kg8f8 Be3c5+ Kf8g8 Bc5e3
23 00:02 5.233.694 1.743.709 +0.36 Bc1a3 g2g3 Kd2d3 g4g5 Kd3e3 g3g4 Ba3c5 a2a3 Ke3e4 a3a4 Ke4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6c2 Kg8f7 Bc2b3+ Kf7e8 Bb3d5 Ke8d7 Kg5g6 Kd7e8 Kg6h7 Ke8d7 Kh7g8
24 00:03 5.903.676 1.897.660 +0.38 Bc1a3 g2g3 Kd2d3 g4g5 Kd3e3 g3g4 Ba3c5 a2a4 Ke3f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6c2 Kg8f7 Bc2b3+ Kf7e8 Bb3d5 Ke8d7 Kg5g6 Kd7e8 Kg6h7 Ke8d7 Kh7g8 Kd7e8 Bd5c4 Ke8d7
25 00:03 7.803.782 1.964.799 +0.37 Bc1a3 g4g5 Kd2d3 g2g4 Ba3c5 a2a4 Kd3e3 a4a5 Ke3f4 a5a6 Kf4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5xg4 Ke8d8 Kg4f5 Kd8e8 Kf5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bd5c4 Kd7e8 Bc4b5+ Ke8d8
26 00:05 11.164.193 2.093.098 +0.39 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6
27 00:07 15.308.564 2.153.206 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6e5
28 00:08 20.135.287 2.287.399 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6e5 Ke8e7
29 00:11 27.862.800 2.360.006 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd5c6+ Ke8d8 Bd6b4 Kd8c7 Bc6d5
30 00:14 35.051.332 2.427.825 +0.39 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Bc5b4 Ke8d7 Kh7g8 Kd7d8 Bb4d6 Kd8e8 Bd6a3 Ke8d8 Ba3c5 Kd8d7
31 00:17 45.012.392 2.507.839 +0.39 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5h6 Ke8d8 Kh6g6 Kd8e8 Bd5c6+ Ke8d8 Kg6h7 Kd8c7 Bc6d5 Kc7c8 Kh7g8 Kc8d7 Bc5b4 Kd7d8 Bb4d6 Kd8d7
32 00:22 58.530.842 2.564.270 +0.39 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd5e6 Ke8d8 Bd6c5 Kd8e8 Bc5b4 Ke8d8
33 00:59 146.998.695 2.487.189 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6a3 Ke8d8 Ba3b4 Kd8d7 Bb4c5 Kd7e8 Bd5c6+ Ke8d8
34 01:37 252.886.840 2.586.503 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6a3 Ke8d8 Ba3b4 Kd8d7 Bb4c5 Kd7e8 Bc5d4 Ke8e7
35 01:58 307.586.547 2.596.691 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6a3 Ke8d8 Ba3b4 Kd8e8 Bd5c6+ Ke8d8 Bb4c5 Kd8c7 Bc6b5 Kc7d8 Bb5c4
36 02:26 380.995.117 2.609.161 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6a3 Ke8d8 Ba3b4 Kd8d7 Bb4c5 Kd7e8 Bd5e6 Ke8d8 Bc5d6 Kd8e8
37 03:09 493.682.599 2.609.444 +0.38 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Kg5g6 Ke8d7 Kg6h7 Kd7e8 Kh7g8 Ke8d7 Bc5b4 Kd7d8 Bb4d6 Kd8e8 Bd6a3 Ke8d8 Ba3b4 Kd8d7 Bb4c5 Kd7d8 Bd5e6 Kd8e8 Bc5b4 Ke8d8 Bb4d6
38 04:16 672.562.014 2.626.407 +0.50 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Bd5e6 Ke8d8 Bc5d6 g7g8Q+ Be6xg8 Kd8d7 Bd6c5 Kd7c6 Bc5e3 Bh8c3 Kg5f5 Bc3b4 Kf5e4 Kc6b5 Bg8d5 Bb4d6 Bd5e6 Bd6b4 Be3d4 Bb4c5 Bd4e5 Kb5c6 Be6d5+ Kc6b5 Ke4f5
39 15:52 1.597.970.254 2.711.125 +0.49 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Bd5e6 Ke8d8 Bc5d6 g7g8Q+ Be6xg8 Kd8d7 Bd6c5 Kd7c6 Bc5e3 Bh8c3 Kg5f5 Kc6d6 Bg8c4 Bc3g7 Kf5e4 Bg7e5 Bc4d5 Be5c3 Be3f4+ Kd6c5 Bd5e6 Bc3f6 Bf4e3+ Kc5d6 Be6b3 Bf6c3 Be3f4+ Kd6c5
40 25:15 3.029.143,403 2.628.480 +0.49 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Bd5e6 Ke8d8 Bc5d6 g7g8Q+ Be6xg8 Kd8d7 Bd6c5 Kd7c6 Bc5e3 Bh8c3 Kg5f5 Kc6d6 Bg8c4 Bc3g7 Kf5e4 Bg7e5 Bc4d5 Be5c3 Be3f4+ Kd6c5 Bd5e6 Bc3f6 Bf4e3+ Kc5b4 Be6d5 Bf6c3 Ke4d3 Bc3e5
41 30:25 3.696.567,137 2.527.681 +0.49 Bc1a3 g4g5 Kd2e3 g2g3 Ke3e4 g3g4 Ba3c5 a2a3 Ke4f4 a3a4 Kf4f3 a4a5 Kf3xg4 a5a6 Kg4xg5 a6a7 Bc5xa7 Kg8f8 Ba7c5+ Kf8g8 Bg6e4 Kg8f7 Be4d5+ Kf7e8 Bd5e6 Ke8d8 Bc5d6 g7g8Q+ Be6xg8 Kd8d7 Bd6c5 Kd7c6 Bc5e3 Bh8c3 Kg5f5 Kc6d6 Bg8c4 Bc3g7 Kf5e4 Bg7e5 Bc4d5 Be5c3 Be3f4+ Kd6c5 Bf4g5 Kc5d6 Bd5f7 Bc3g7 Bg5f4+ Kd6c5 Bf4e3+ Kc5d6 Bf7b3 Bg7f6
42 39:30 4.881.945,025 2.431.793 +M17 Bc1a3 g4g5 Kd2c3 g2g4 Kc3b4 Kg8f8 Kb4c4+ Kf8g8 Kc4c5 Kg8f8 Kc5d5+ Kf8g8 Kd5d6 Kg8f8 Kd6e6+ Kf8g8 Bg6b1 g5g6 Bb1xg6 g4g5 Bg6b1 g5g6 Ke6f6 Kg8h7 Bb1xg6+ Kh7g8 Ba3c5 a2a3 Bg6c2 a3a4 Kf6g6 a4a5 Bc2b3+
Uri Blass
Posts: 10892
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Rybka couldn't solve this..Any sggestions which engine c

Post by Uri Blass »

Yes

New game
[d]6KB/6P1/6b1/8/6P1/8/P2k2P1/2b5 b - - 0 1

Analysis by Movei00_8_438:

1...Bc1-a3
= (-0.07) Depth: 1 00:00:00
1...Bc1-a3 2.g4-g5
= (0.01) Depth: 2 00:00:01
1...Bc1-a3 2.g4-g5
= (0.01) Depth: 2 00:00:01
1...Bc1-a3 2.g4-g5 Bg6-e4
³ (-0.28) Depth: 3 00:00:01
1...Bc1-a3 2.g4-g5 Bg6-e4
³ (-0.28) Depth: 3 00:00:01
1...Bc1-a3
³ (-0.58) Depth: 4 00:00:02
1...Bc1-a3 2.g4-g5 Ba3-e7 3.a2-a4 Be7xg5
³ (-0.65) Depth: 4 00:00:02
1...Bc1-a3 2.g4-g5 Ba3-e7 3.a2-a4 Be7xg5
³ (-0.65) Depth: 4 00:00:02
1...Bc1-a3 2.g4-g5 Ba3-e7 3.a2-a4 Be7xg5
³ (-0.65) Depth: 5 00:00:02
1...Bc1-a3 2.g4-g5 Ba3-e7 3.a2-a4 Be7xg5
³ (-0.65) Depth: 5 00:00:02
1...Bc1-a3
µ (-0.95) Depth: 6 00:00:02 5kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g3 Ba3-e7 4.a2-a4 Be7xg5
µ (-1.05) Depth: 6 00:00:02 6kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g3 Ba3-e7 4.a2-a4 Be7xg5
µ (-1.05) Depth: 6 00:00:02 15kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g3 Kc3-c4 4.g3-g4 Ba3-e7 5.a2-a4 Be7xg5
µ (-1.18) Depth: 7 00:00:02 18kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g3 Kc3-c4 4.g3-g4 Ba3-e7 5.a2-a4 Be7xg5
µ (-1.18) Depth: 7 00:00:02 37kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g4 Kc3-b4 4.Kg8-f8 Kb4-a4+ 5.Kf8-g8 Ba3-e7 6.a2-a3 Ka4-b3 7.a3-a4 Be7xg5
µ (-1.16) Depth: 8 00:00:02 51kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g4 Kc3-b4 4.Kg8-f8 Kb4-a4+ 5.Kf8-g8 Ba3-e7 6.a2-a3 Ka4-b3 7.a3-a4 Be7xg5
µ (-1.16) Depth: 8 00:00:02 102kN
1...Bc1-a3
-+ (-1.46) Depth: 9 00:00:02 112kN
1...Bc1-a3
-+ (-2.16) Depth: 9 00:00:02 139kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8
-+ (-2.91) Depth: 9 00:00:02 162kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8
-+ (-2.91) Depth: 9 00:00:02 212kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8
-+ (-2.91) Depth: 10 00:00:02 235kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8
-+ (-2.91) Depth: 10 00:00:03 383kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4
-+ (-2.98) Depth: 11 00:00:03 466kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4
-+ (-2.98) Depth: 11 00:00:04 754kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8
-+ (-2.83) Depth: 12 00:00:04 1020kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8
-+ (-2.83) Depth: 12 00:00:14 1778kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8
-+ (-2.83) Depth: 13 00:00:17 2252kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8
-+ (-2.83) Depth: 13 00:00:26 3467kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-f5
-+ (-2.93) Depth: 14 00:00:27 4212kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-f5
-+ (-2.93) Depth: 14 00:00:30 6480kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-f5 12.Ke8-d7
-+ (-3.05) Depth: 15 00:00:32 7937kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-f5 12.Ke8-d7
-+ (-3.05) Depth: 15 00:00:38 12601kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-g6 12.Ke8-d7 Kg6-f7
-+ (-3.26) Depth: 16 00:00:42 15079kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-g6 12.Ke8-d7 Kg6-f7
-+ (-3.26) Depth: 16 00:00:53 22677kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-g6 12.g7-g8Q+ Bd5xg8 13.Ke8-d7
-+ (-3.19) Depth: 17 00:01:03 30251kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-g6 12.g7-g8Q+ Bd5xg8 13.Ke8-d7
-+ (-3.19) Depth: 17 00:01:26 48261kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-d3 10.Kg8-f7 Bd3-c4+ 11.Kf7-e8 Kg5-g6 12.g7-g8Q+ Bc4xg8
-+ (-3.38) Depth: 18 00:01:33 53951kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-d3 10.Kg8-f7 Bd3-c4+ 11.Kf7-e8 Kg5-g6 12.g7-g8Q+ Bc4xg8
-+ (-3.38) Depth: 18 00:02:08 76901kN
1...Bc1-a3
-+ (-3.08) Depth: 19 00:02:38 101334kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-h6 12.Ke8-d7 Kh6-g6
-+ (-3.10) Depth: 19 00:02:56 116115kN
1...Kd2-e3
-+ (-3.11) Depth: 19 00:03:26 139117kN
1...Kd2-e3 2.a2-a4 Bc1-d2 3.g2-g3 Ke3-e4 4.Kg8-f8 Bd2-b4+ 5.Kf8-g8 Ke4-e5 6.a4-a5 Bb4xa5 7.g4-g5 Ke5-f5
-+ (-3.11) Depth: 19 00:03:54 160092kN
1...Kd2-e3 2.a2-a4 Bc1-d2 3.g2-g3 Ke3-e4 4.Kg8-f8 Bd2-b4+ 5.Kf8-g8 Ke4-e5 6.a4-a5 Bb4xa5 7.g4-g5 Ke5-f5
-+ (-3.11) Depth: 19 00:04:40 194280kN
1...Kd2-e3 2.a2-a4 Bc1-d2 3.g2-g3 Ke3-e4 4.Kg8-f8 Bd2-b4+ 5.Kf8-g8 Ke4-e5 6.a4-a5 Bb4xa5 7.g4-g5 Ke5-f5 8.Kg8-f8
-+ (-3.11) Depth: 20 00:05:02 211102kN
1...Bc1-a3
-+ (-3.12) Depth: 20 00:05:02 211103kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-g6 12.Ke8-d8 Kg6-f7 13.Kd8-d7 Bd5-e4 14.g7-g8Q+ Kf7xg8
-+ (-3.27) Depth: 20 00:05:20 224892kN
1...Bc1-a3 2.g4-g5 Kd2-e3 3.g2-g4 Ba3-c5 4.a2-a4 Ke3-f3 5.a4-a5 Kf3xg4 6.a5-a6 Kg4xg5 7.a6-a7 Bc5xa7 8.Kg8-f8 Ba7-c5+ 9.Kf8-g8 Bg6-e4 10.Kg8-f7 Be4-d5+ 11.Kf7-e8 Kg5-g6 12.Ke8-d8 Kg6-f7 13.Kd8-d7 Bd5-e4 14.g7-g8Q+ Kf7xg8
-+ (-3.27) Depth: 20 00:06:27 267167kN
1...Bc1-a3
-+ (-3.57) Depth: 21 00:07:06 300044kN
1...Bc1-a3
-+ (-4.27) Depth: 21 00:07:47 332938kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g4 Kc3-b4 4.Kg8-f8 Kb4-c4+ 5.Kf8-g8 Kc4-c5 6.Kg8-f8 Kc5-d5+ 7.Kf8-g8 Kd5-d6 8.Kg8-f8 Kd6-e6+ 9.Kf8-g8 Bg6-d3 10.g5-g6 Bd3xg6 11.g4-g5 Bg6-d3 12.g5-g6 Ke6-f6 13.Kg8-h7 Bd3xg6+ 14.Kh7-g8 Ba3-b4 15.a2-a3 Bb4-d6 16.a3-a4 Bg6-e4 17.a4-a5
-+ (-#17) Depth: 21 00:08:07 352324kN
1...Bc1-a3 2.g4-g5 Kd2-c3 3.g2-g4 Kc3-b4 4.Kg8-f8 Kb4-c4+ 5.Kf8-g8 Kc4-c5 6.Kg8-f8 Kc5-d5+ 7.Kf8-g8 Kd5-d6 8.Kg8-f8 Kd6-e6+ 9.Kf8-g8 Bg6-d3 10.g5-g6 Bd3xg6 11.g4-g5 Bg6-d3 12.g5-g6 Ke6-f6 13.Kg8-h7 Bd3xg6+ 14.Kh7-g8 Ba3-b4 15.a2-a3 Bb4-d6 16.a3-a4 Bg6-e4 17.a4-a5
-+ (-#17) Depth: 21 00:09:06 405017kN

(so k, 03.06.2009)
Dr.Joy
Posts: 23
Joined: Tue Jun 02, 2009 1:47 pm

Re: Rybka couldn't solve this..Any sggestions which engine c

Post by Dr.Joy »

So it is solvable for a lot of engines..but the "God Father" of chess engines - Rybka - is hopeless against this position..interesting
kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: Rybka couldn't solve this..Any sggestions which engine c

Post by kgburcham »

Amazing that Chest gets this so fast.
Almost as if Chest pulled this out of a Database in 0 seconds.

[d] 6KB/6P1/6b1/8/6P1/8/P2k2P1/2b5 b - - (6+3)
Stellungs-Analyse: C0/R0/K2/P4/X5 S:3/18
AutoTurbo-Suche nach Spezial-Matt [C0/R0/K0/P0/X2] in 19 ... (Hash=512MB)
AutoTurbo-Suche nach Spezial-Matt [C0/R0/K3/P0/X2] in 17 ... (Hash=512MB)
17.11 0:00 -M17 1...Ba3 1296
17/17 0:00 -M17 1...Ba3 2.g5 Kc3 3.g4 Kb4 4.Kf8 Kc4+ 5.Kg8 Kc5 6.Kf8 Kd5+ 7.Kg8 Kd6 8.Kf8 Ke6+ 9.Kg8 Be4 10.g6 Bxg6 11.g5 Bf5 12.g6 Kf6 13.Kh7 Bxg6+ 14.Kg8 Bc5 1321
AutoTurbo-Suche nach Spezial-Matt [C0/R0/K3/P2/X2] in 17 ... (Hash=512MB)
User avatar
F.Huber
Posts: 867
Joined: Thu Mar 09, 2006 4:50 pm
Location: Austria
Full name: Franz Huber

Re: Rybka couldn't solve this..Any sggestions which engine c

Post by F.Huber »

kgburcham wrote:Amazing that Chest gets this so fast.
Almost as if Chest pulled this out of a Database in 0 seconds.
Yes, you´re right - Chest had just to look into its internal 32-men tablebases! :mrgreen:
Dr.Joy
Posts: 23
Joined: Tue Jun 02, 2009 1:47 pm

Re: Rybka couldn't solve this..Any sggestions which engine c

Post by Dr.Joy »

Frankly I have a high respect for ChestUCI as the best mate solving engine around...but just after this post I am counting on it more than ever..I can't blame any "engine" not to see the solution of this study because its idea is really difficult, but to find it almost immediately is abnormal..and amazing
lonola

Re: Rybka couldn't solve this..Any sggestions which engine c

Post by lonola »

Dr.Joy wrote:Frankly I have a high respect for ChestUCI as the best mate solving engine around...but just after this post I am counting on it more than ever.. I can't blame any "engine" not to see the solution of this study because its idea is really difficult, but to find it almost immediately is abnormal..and amazing
In the title you do seem to blame Rybka. Ask yourself the reverse question. How do the likes of Yace or ChestUCI fare as chess tools (correspondence analysis, engine vs engine contests). You will prolly find outside mate in 20 or 30 they are almost useless as chess tools.