Author: Dieter Buerssner
Date: 16:41:33 06/19/04
Go up one level in this thread
On June 18, 2004 at 23:49:43, Dann Corbit wrote:
>The suite:
>ftp://cap.connx.com/pub/EPD/pawntest.epd
>
>Crafty output at 999 sec per position:
>ftp://cap.connx.com/pub/EPD/pawntest.out
>
>Here are some positions that looked unsure to me:
>
>1k6/6p1/1Pp1pp1p/2P5/7P/8/5PP1/6K1 w - - acd 25; acn 900282781; acs 1800; bm
>h5; ce 302; id "J&S45.06"; pv Kh2 h5 Kh3 Kc8 g4 e5 Kg3 Kd7 f3 Kd8 Kf2 hxg4 fxg4
>Kc8 Kf3 Kd7 Kg3 Kd8 g5 fxg5 hxg5 Kc8 Kg4 Kd7 Kf5 e4 Kxe4;
Yace thinks, other moves are winning, too.
I did not check, how reliable the displayed PVs are (they unfortunately often
are not in deep endgame anaylsis with totally overloaded HTs), but the scores
seem pretty convincing.
1k6/6p1/1Pp1pp1p/2P5/7P/8/5PP1/6K1 w - -
Engine: Yace 0.99.86 bb (260 MB)
by Dieter Buerssner
8/22 0:01 +2.41 1.h5 Kb7 2.g3 Kc8 3.Kg2 Kd7 4.Kh1 Kc8
5.Kh2 Kd7 6.Kg2 Kc8 7.Kf3 Kd8 8.Kf4 Kc8
9.b7+ Kxb7 10.Ke3 e5 11.f3 f5 12.g4 Kc8
13.gxf5 e4 14.Kd4 (1.074.491) 813
8/24 0:02 +2.41 1.h5 Kb7 2.g3 Kc8 3.Kg2 Kd7 4.Kh1 Kc8
5.Kh2 Kd7 6.Kg2 Kc8 7.Kf3 Kd8 8.Kf4 Kc8
9.b7+ Kxb7 10.Ke3 e5 11.f3 f5 12.g4 Kc8
13.gxf5 e4 14.Kd4 (2.408.443) 832
9/24 0:03 +2.40 1.h5 Kb7 2.Kf1 Kc8 3.Ke2 Kd7 4.Kd3 Kd8
5.Ke3 Kd7 6.Kf3 Kc8 7.Ke2 Kd7 8.Kd3 Kd8
9.Ke3 Kd7 10.Kf3 Kc8 11.Ke2 (2.894.342) 833
9/26 0:07 +2.40 1.h5 Kb7 2.Kf1 Kc8 3.Ke2 Kd7 4.Kd3 Kd8
5.Ke3 Kd7 6.Kf3 Kc8 7.Ke2 Kd7 8.Kd3 Kd8
9.Ke3 Kd7 10.Kf3 Kc8 11.Ke2 (5.966.891) 825
10/26 0:08 +2.40 1.h5 Kb7 2.Kf1 Kc8 3.Ke2 Kd8 4.Kd3 Kd7
5.Ke4 Kc8 6.Kf4 Kd7 7.Ke3 Kd8 8.g3 Kc8
9.Kf3 Kb8 10.g4 Kb7 11.Kf4 Kc8
12.b7+ Kxb7 13.Ke4 Kc8 14.Kd4 (6.703.861) 822
10/29 0:17 +2.41++ 1.g4 g5 2.hxg5 hxg5 3.Kg2 Kb7 4.Kg3 e5
5.Kf3 Kc8 6.Ke4 f5+ 7.Kxf5 Kd7 8.b7 Kc7
9.b8Q+ Kxb8 10.Kxg5 Kb7 11.f3 Kc7
12.Kg6 Kd8 13.g5 (14.258.272) 822
10/29 0:18 +2.41 1.g4 Kb7 2.Kg2 Kc8 3.f4 Kd7 4.Kf3 Kd8
5.g5 h5 6.g6 Kc8 7.Ke4 Kd7 8.Kd4 Kd8
9.Kd3 Kc8 10.Ke3 Kd8 11.Ke4 Kd7
12.Kd4 Kd8 13.Kd3 Kc8 14.Ke3 (15.035.913) 822
10/29 0:19 +2.41 1.g4 Kb7 2.Kg2 Kc8 3.f4 Kd7 4.Kf3 Kd8
5.g5 h5 6.g6 Kc8 7.Ke4 Kd7 8.Kd4 Kd8
9.Kd3 Kc8 10.Ke3 Kd8 11.Ke4 Kd7
12.Kd4 Kd8 13.Kd3 Kc8 14.Ke3 (16.267.457) 824
11/31 0:27 +2.58 1.g4 Kb7 2.f4 Kc8 3.h5 Kd7 4.Kf2 Kd8
5.Kg3 Kc8 6.g5 Kd7 7.g6 Kd8 8.Kg4 Kd7
9.Kf3 Kd8 10.Ke4 Kd7 11.Kd3 (22.550.865) 830
11/33 0:34 +2.59++ 1.f4 Kb7 2.Kf2 Kc8 3.Kf3 h5 4.g4 hxg4+
5.Kxg4 g6 6.h5 g5 7.fxg5 Kb7 8.Kf3 Kc8
9.b7+ Kxb7 10.Kf4 Ka6 11.h6 Kb5
12.h7 e5+ 13.Kf5 fxg5 (28.782.594) 836
11/33 0:34 +2.81++ 1.f4 Kb7 2.Kf2 Kc8 3.Kf3 h5 4.g4 hxg4+
5.Kxg4 Kd7 6.Kh5 g5 7.hxg5 fxg5
8.fxg5 e5 9.b7 Kc7 10.g6 e4 11.b8Q+ Kxb8 (29.149.691) 835
11/33 0:35 +2.82 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 Kc8
5.gxh5 Kd7 6.Kg4 Kc8 7.Kh3 Kd7 8.Kh2 Kd8
9.Kg3 Kd7 10.Kf2 Kd8 11.Ke3 (29.539.833) 836
11/33 0:37 +2.82 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 Kc8
5.gxh5 Kd7 6.Kg4 Kc8 7.Kh3 Kd7 8.Kh2 Kd8
9.Kg3 Kd7 10.Kf2 Kd8 11.Ke3 (31.736.553) 838
12/33 0:40 +3.22++ 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 hxg4+
5.Kxg4 f5+ 6.Kh5 e5 7.fxe5 g5 8.hxg5 Kb7
9.e6 f4 10.e7 f3 11.e8Q f2 (33.814.656) 843
12/33 0:43 +3.27 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 Kb7
5.gxh5 Kc8 6.Kg4 Kd7 7.h6 gxh6 8.Kh5 e5
9.fxe5 fxe5 10.Kg4 e4 11.Kf4 e3
12.Kxe3 (36.363.247) 843
12/34 1:17 +3.28++ 1.Kh2 Kb7 2.Kh3 Kc8 3.f3 Kd7 4.Kg4 g6
5.f4 e5 6.fxe5 fxe5 7.Kf3 Kd8 8.Ke4 Kd7
9.Kxe5 Kc8 10.g3 Kd7 11.g4 Kc8
12.Kf4 Kb8 13.h5 (65.924.857) 849
12/34 1:27 +3.47 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kb8 6.g3 Kc8 7.g4 f5 8.g5 e5
9.fxe5 Kd8 10.Kg3 Kd7 11.b7 Kc7
12.e6 Kxb7 13.e7 Ka6 14.e8Q (74.154.027) 848
12/34 1:30 +3.47 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kb8 6.g3 Kc8 7.g4 f5 8.g5 e5
9.fxe5 Kd8 10.Kg3 Kd7 11.b7 Kc7
12.e6 Kxb7 13.e7 Ka6 14.e8Q (76.594.186) 850
13/36 1:43 +3.87++ 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 Kd7
5.Kf3 f5 6.g3 Kc8 7.Ke3 Kb8 8.Kd4 g5
9.fxg5 Kc8 10.g6 Kd7 11.b7 Kc7
12.b8Q+ Kxb8 13.g7 f4 (88.916.419) 856
13/36 2:13 +4.87++ 1.Kh2 Kb7 2.Kh3 Kc8 3.f4 h5 4.g4 Kd7
5.gxh5 Kd8 6.Kg4 e5 7.fxe5 (114.926.840) 857
13/36 2:23 +4.87 1.Kh2 Kb7 2.Kh3 Kb8 3.f4 h5 4.g4 Kc8
5.f5 hxg4+ 6.Kxg4 e5 7.Kh5 Kd7 8.Kg6 e4
9.h5 e3 10.b7 e2 11.b8Q e1Q 12.Kxg7 (123.393.502) 858
13/36 2:25 +4.88++ 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 e5
5.fxe5 f5 6.gxf5 Kc8 7.b7+ Kxb7 8.e6 Kc8
9.Ke2 Kd8 10.Kd3 Kc7 11.Kd4 Kb7
12.Ke5 Ka7 13.Kf4 Kb7 14.Kg5 (125.198.984) 857
13/36 2:29 +5.20 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 hxg4+
5.Kxg4 Kb7 6.Kh5 Kc8 7.Kg6 Kb7 8.h5 e5
9.Kf5 exf4 10.Kxf4 Kb8 11.Kf5 Kc8
12.h6 gxh6 13.Kxf6 Kb7 14.Kg6 (128.345.019) 857
13/36 2:43 +5.20 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 hxg4+
5.Kxg4 Kb7 6.Kh5 Kc8 7.Kg6 Kb7 8.h5 e5
9.Kf5 exf4 10.Kxf4 Kb8 11.Kf5 Kc8
12.h6 gxh6 13.Kxf6 Kb7 14.Kg6 (140.881.188) 859
14/37 2:48 +5.60++ 1.f4 Kb7 2.Kf2 h5 3.Kf3 Kb8 4.g4 hxg4+
5.Kxg4 Kb7 6.Kh5 Kc8 7.Kg6 Kb7 8.h5 e5
9.Kf5 Ka6 10.b7 Kxb7 11.fxe5 Kc8
12.exf6 g5 (145.122.967) 859
14/38 3:05 +5.60 1.f4 Kb7 2.Kf2 Kc8 3.Kf3 Kd8 4.Kg4 Kd7
5.Kh5 Kc8 6.b7+ Kxb7 7.Kg6 e5 8.Kxg7 Kc8
9.f5 Kd7 10.Kf7 Kd8 11.Kxf6 e4
12.Ke5 Kd7 13.f6 Kd8 14.Kd4 (159.112.258) 856
14/39 3:45 +5.61++ 1.Kh2 Kb7 2.Kh3 Kb8 3.Kg4 g6 4.f4 h5+
5.Kf3 f5 6.Ke3 e5 7.fxe5 Kc8 8.g3 Kb7
9.Kd4 g5 10.hxg5 h4 11.gxh4 f4 12.e6 f3
13.Kd3 Ka6 14.e7 (193.124.992) 857
14/39 3:57 +6.60++ 1.Kh2 Kb7 2.Kh3 Kb8 3.Kg4 g6 4.f4 h5+
5.Kf3 e5 6.fxe5 fxe5 7.g4 g5 8.gxh5 gxh4
9.b7 h3 10.h6 e4+ 11.Kg3 Kxb7 12.h7 Ka6
13.h8Q Ka5 (203.274.182) 857
14/39 4:13 +6.60 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kd7 6.g3 Kd8 7.g4 f5 8.Ke3 fxg4
9.Kd4 Kd7 10.Kc3 g3 11.b7 g2 12.b8Q g1Q
13.f5 (217.257.301) 856
14/39 4:55 +6.60 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kd7 6.g3 Kd8 7.g4 f5 8.Ke3 fxg4
9.Kd4 Kd7 10.Kc3 g3 11.b7 g2 12.b8Q g1Q
13.f5 (254.339.055) 859
15/40 5:53 +7.00++ 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kd7 6.g3 Kd8 7.g4 hxg4+ 8.Kxg4 g5
9.hxg5 e5 10.b7 e4 11.b8Q+ Ke7 (304.530.308) 862
15/41 6:49 +8.00++ 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kd7 6.g4 hxg4+ 7.Kxg4 f5+
8.Kg5 Kc8 9.Kxg6 Kb7 10.h5 Kc8
11.b7+ Kxb7 12.Kf6 e5 13.Kxf5 exf4 (352.584.107) 861
15/43 11:19 +8.97 1.Kh2 Kb7 2.Kh3 Kc8 3.Kg4 g6 4.f4 h5+
5.Kf3 Kb7 6.g4 hxg4+ 7.Kxg4 Ka6 8.h5 f5+
9.Kg5 gxh5 10.Kxh5 Kb5 11.b7 Kxc5
12.Kg5 Kd4 13.b8Q Ke3 14.Qd6 (588.846.912) 866
15/43 12:36 +8.98++ 1.h5 Kb7 2.Kf1 Kc8 3.Ke2 Kd8 4.Kd3 Kd7
5.Kc4 Kd8 6.Kb4 Kc8 7.Ka5 Kb7 8.f3 Kb8
9.Ka6 e5 10.g4 f5 (655.133.825) 865
15/43 13:22 +9.03 1.h5 Kb7 2.Kf1 Kc8 3.Ke1 Kd8 4.Kd1 Kd7
5.Kc2 Kc8 6.Kc3 Kd7 7.Kb4 e5 8.Ka5 Ke6
9.b7 Kf5 10.b8Q (694.262.366) 864
15/43 16:43 +9.03 1.h5 Kb7 2.Kf1 Kc8 3.Ke1 Kd8 4.Kd1 Kd7
5.Kc2 Kc8 6.Kc3 Kd7 7.Kb4 e5 8.Ka5 Ke6
9.b7 Kf5 10.b8Q (866.884.313) 863
16/44 18:08 +9.43++ 1.h5 Kb7 2.Kf1 Kc8 3.Ke1 Kd8 4.Kd1 Kd7
5.Kc2 Kc8 6.Kb3 Kb8 7.Ka4 e5 8.g4 f5
9.gxf5 e4 10.Ka3 Kb7 11.Ka2 Kc8
12.Kb3 Kd7 13.Kc4 Kc8 14.Kd4 (940.081.294) 863
>3k4/2p5/1pKp4/p2P4/2P5/P7/1P6/8 w - - acd 28; acn 743020524; acs 1801; bm c5;
>c0 "This one is questionable."; ce 19; id "J&S45.10"; pv Kb7 Kd7 Ka6 Kd8 Ka7 Ke8
>Kb8 Kd8 b3 Kd7 Kb7 Kd8 b4 axb4 axb4 Kd7 Ka6 Ke7 Kb5 Kd8 Ka4 Kc8 Kb3 Kb7 Ka3 Kc8
>Kb2 Kb7;
Yace doesn't find any win. The given PV above is impossible?
>8/2pp2pp/8/2PP1P2/1p5k/8/PP4p1/6K1 w - - acd 21; acn 908951755; acs 1800; bm
>f6; ce 37; id "J&S45.11"; pv Kxg2 Kg5 a4 bxa3 bxa3 Kf6 a4 Ke7 Kf3 Kd8 Ke4 Kc8 c6
>dxc6 dxc6 Kb8 Kd5 Ka7 Kc5 h5 Kd4 h4 Ke4;
Found in 9 s, + 4.x score in 11 s. For Kxg2 the score becomes drawish soon.
>k7/8/1p6/p1p5/2P4K/8/PP6/8 w - - acd 31; acn 800599810; acs 1801; bm a4; ce
>40; id "bote.4"; pv a4 Kb7 Kh5 Kc6 Kg5 Kc7 Kg6 Kc6 b3 Kd6 Kf6 Kc6 Ke6 Kc7 Ke7
>Kc6 Kd8 Kb7 Kd7 Ka6 Kc6 Ka7 Kc7 Ka6 Kd7 Ka7 Kc6 Ka6 Kd6 Ka7;
>
>k7/8/pp6/2p4K/8/PPP5/8/8 w - - acd 32; acn 583558632; acs 1800; bm c4; ce 1;
>id "(Simon Finn on CCC) Grigoriev 1933"; pv Kg6 Kb7 Kf5 Kc6 c4 b5 Ke5 b4 axb4
>cxb4 Ke4 a5 Kd4 Kb6 Kd3 Kc6 Ke4 Kc5 Ke3 a4 bxa4;
One might want to mention, that pos 4 above is 2 moves into pos 5. Both are
correct (and very deep). Current Yace solves both positions (and with aggressive
TB handling even shows mate score).
Regards,
Dieter
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