Author: Rafael Andrist
Date: 13:51:38 09/02/01
Go up one level in this thread
On September 02, 2001 at 14:24:32, Bruce Moreland wrote:
>If it's black to move, does any program try 1. ... b3? All of my computers are
>busy, so I can't tell. I don't know if this wins, but it is clearly the only
>try.
>
[D]8/p7/1p2k1p1/8/1p2p1Pp/3pP2P/PP6/5K2 b - - 0 1
According to my own programme "Wilhelm", b3 is winning:
(CPU: P2-400, Hash: 24 MB)
1 ply d3-d2 N: 14 Q: 0 H: 0 Wert: -3.27
d3-d2
2 ply d3-d2 N: 62 Q: 24 H: 14 Wert: -3.22
d3-d2 Kf1-e2
3 ply Ke6-d5 N: 428 Q: 62 H: 173 Wert: -2.99
Ke6-d5 Kf1-e1 a7-a6
4 ply a7-a6 N: 1076 Q: 70 H: 525 Wert: -2.97
a7-a6 Kf1-e1 Ke6-d5 Ke1-d2
5 ply Ke6-d5 N: 2689 Q: 264 H: 1519 Wert: -2.98
Ke6-d5 Kf1-e1 b6-b5 Ke1-d2 a7-a5
6 ply b6-b5 N: 6137 Q: 377 H: 3658 Wert: -2.98
b6-b5 Kf1-e1 a7-a5 Ke1-d2 g6-g5 Kd2-e1
7 ply Ke6-e5 N: 12911 Q: 542 H: 8422 Wert: -2.99
Ke6-e5 Kf1-e1 a7-a6 Ke1-d2 g6-g5 Kd2-e1 Ke5-d5
8 ply Ke6-e5 N: 29614 Q: 1278 H: 19625 Wert: -2.98
Ke6-e5 Kf1-e1 a7-a6 Ke1-d2 g6-g5 Kd2-e1 Ke5-d5 Ke1-f2
9 ply g6-g5 N: 57818 Q: 2360 H: 40874 Wert: -3.00
g6-g5 Kf1-e1 b6-b5 Ke1-d1 a7-a6 Kd1-e1 a6-a5 Ke1-d2 Ke6-d5
10 ply Ke6-e5 N: 105121 Q: 3712 H: 78273 Wert: -3.00
Ke6-e5 Kf1-e1 b6-b5 Ke1-d2 g6-g5 Kd2-d1 a7-a5 Kd1-e1 Ke5-e6 Ke1-d2
11 ply Ke6-e5 N: 175751 Q: 5560 H: 135723 Wert: -3.00
Ke6-e5 Kf1-e1 b6-b5 Ke1-d2 g6-g5 Kd2-d1 a7-a5 Kd1-e1 Ke5-e6 Ke1-d2 Ke6-d5
12 ply Ke6-e5 N: 312737 Q: 9782 H: 246583 Wert: -3.00
Ke6-e5 Kf1-e1 a7-a6 Ke1-d1 g6-g5 Kd1-e1 Ke5-d6 Ke1-d1 Kd6-d5 Kd1-e1 b6-b5
Ke1-d2
13 ply Ke6-e5 N: 435203 Q: 13429 H: 349883 Wert: -3.00
Ke6-e5 Kf1-e1 a7-a6 Ke1-d1 g6-g5 Kd1-e1 Ke5-d6 Ke1-d1 Kd6-d5 Kd1-e1 b6-b5
Ke1-d2 Kd5-e6
14 ply b4-b3 N: 809247 Q: 28430 H: 613738 Wert: -3.06
b4-b3 a2-a3 b6-b5 Kf1-e1 Ke6-d5 Ke1-d2 b5-b4 a3xb4 Kd5-c4 b4-b5 Kc4xb5 Kd2-c3
Kb5-a4 g4-g5
15 ply b4-b3 N: 1128635 Q: 43708 H: 865644 Wert: -3.16
b4-b3 a2-a3 b6-b5 Kf1-e1 Ke6-d5 Ke1-d2 Kd5-c4 Kd2-d1 b5-b4 a3xb4 Kc4xb4 Kd1-e1
Kb4-c4 Ke1-d2 Kc4-d5
16 ply b4-b3 N: 1751054 Q: 76415 H: 1315834 Wert: -3.19
b4-b3 a2-a3 b6-b5 Kf1-e1 Ke6-d5 Ke1-d2 Kd5-c4 Kd2-d1 b5-b4 a3xb4 g6-g5 Kd1-e1
Kc4xb4 Ke1-d2 Kb4-c4 Kd2-e1
17 ply b4-b3 N: 3311981 Q: 178878 H: 2440209 Wert: -4.78
b4-b3 a2-a4 a7-a5 Kf1-e1 Ke6-d5 Ke1-d2 Kd5-c4 Kd2-d1 b6-b5 a4xb5 Kc4xb5 g4-g5
a5-a4 Kd1-e1 Kb5-b4 Ke1-d2 a4-a3
Tiefe V: 17 ply; Tiefe N: 27 ply; Tiefe Q:
29 ply; Alpha-Cutoffs 2383029; Beta-Cutoffs 3377683;
Nullmove-Cutoffs 99.08 %; Hash: Store 1732129; Hash: Acc +
7873241; Hash: Acc - 964948; Hash: Zug gut 2938902; Knoten
N: 9134080; Knoten Q: 216138; Knoten total:
9350218; Gegenfeldsysteme: 540; Verbrauchte Zeit: 240 sec;
Geschwindigkeit: 38959 nod/sec;
>Can you or someone else run Fine 70 for me with these programs and report the
>results? I'm interested that Fritz is getting so deep in this pawn ending, and
>I wonder if it can find this.
[D]8/k/3p/p2P1p/P2P1P/16/K w - - 0 1
Wilhelm reaches only ply 29 (in 198 sec):
1 ply Ka1-b1 N: 4 Q: 0 H: 0 Wert: 1.75
Ka1-b1
2 ply Ka1-b1 N: 19 Q: 0 H: 4 Wert: 1.76
Ka1-b1 Ka7-b7
3 ply Ka1-b1 N: 56 Q: 0 H: 19 Wert: 1.77
Ka1-b1 Ka7-b7 Kb1-c1
4 ply Ka1-b1 N: 136 Q: 0 H: 69 Wert: 1.78
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7
5 ply Ka1-b1 N: 305 Q: 0 H: 188 Wert: 1.79
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1
6 ply Ka1-b1 N: 596 Q: 0 H: 422 Wert: 1.80
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7
7 ply Ka1-b1 N: 982 Q: 0 H: 767 Wert: 1.81
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2
8 ply Ka1-b1 N: 1455 Q: 0 H: 1204 Wert: 1.84
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-d8
9 ply Ka1-b1 N: 2062 Q: 0 H: 1768 Wert: 1.84
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2
10 ply Ka1-b1 N: 2769 Q: 0 H: 2427 Wert: 1.84
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b7
11 ply Ka1-b1 N: 4378 Q: 0 H: 3938 Wert: 1.85
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b7 Kd2-c3
12 ply Ka1-b1 N: 5498 Q: 0 H: 4969 Wert: 1.86
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b7 Kd2-c3
Kb7-b6
13 ply Ka1-b1 N: 6848 Q: 0 H: 6214 Wert: 1.87
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b7 Kd2-c3
Kb7-b6 Kc3-d2
14 ply Ka1-b1 N: 12505 Q: 8 H: 11594 Wert: 1.88
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b8 Kd2-e3
Kb8-c7 Ke3-d3 Kc7-c8
15 ply Ka1-b1 N: 16447 Q: 8 H: 15344 Wert: 1.89
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b8 Kd2-e3
Kb8-c7 Ke3-d3 Kc7-c8 Kd3-d2
16 ply Ka1-b1 N: 23014 Q: 8 H: 21577 Wert: 1.90
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b8 Kd2-e3
Kb8-c7 Ke3-d3 Kc7-c8 Kd3-d2 Kc8-b8
17 ply Ka1-b1 N: 41983 Q: 22 H: 39166 Wert: 1.91
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-e7 Kc2-d3 Ke7-f6 Kd3-c4
Kf6-g6 Kc4-b5 Kg6-h5 Kb5-c6 Kh5-g4 Kc6xd6
18 ply Ka1-b1 N: 44606 Q: 62 H: 41545 Wert: 1.91
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-e7 Kc2-d3 Ke7-f6 Kd3-c4
Kf6-g6 Kc4-b5 Kg6-h5 Kb5-c6 Kh5-g4 Kc6xd6 Kg4xf4
19 ply Ka1-b1 N: 102846 Q: 63 H: 95759 Wert: 1.81
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-e7 Kc2-d3 Ke7-f6 Kd3-c4
Kf6-g6 Kc4-b5 Kg6-h5 Kb5xa5 Kh5-g4 Ka5-b5 Kg4xf4 a4-a5
20 ply Ka1-b1 N: 178907 Q: 66 H: 166349 Wert: 1.79
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-e7 Kc2-d3 Ke7-f6 Kd3-c4
Kf6-g6 Kc4-b5 Kg6-h5 Kb5xa5 Kh5-g4 Ka5-b5 Kg4xf4 a4-a5 Kf4-e4
21 ply Ka1-b1 N: 314052 Q: 74 H: 290651 Wert: 1.48
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-e7 Kc2-d3 Ke7-f6 Kd3-c4
Kf6-g6 Kc4-b5 Kg6-h5 Kb5xa5 Kh5-g4 Ka5-b5 Kg4xf4 Kb5-c6 Kf4-e4 Kc6xd6
22 ply Ka1-b1 N: 503455 Q: 432 H: 476742 Wert: 1.98
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-b8 Kd2-e3
Kb8-c7 Ke3-d3 Kc7-b7 Kd3-e3 Kb7-c7 Ke3-d3 Kc7-b7 Kd3-e3 Kb7-c7 Ke3-d3 Kc7-b7
23 ply Ka1-b1 N: 559152 Q: 4141 H: 529541 Wert: 1.89
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-e7 Kc2-d3 Ke7-f6 Kd3-c4
Kf6-g6 Kc4-b5 Kg6-h5 Kb5xa5 Kh5-g4 Ka5-b5 Kg4xf4 a4-a5 Kf4-e4 Kb5-c4 f5-f4 a5-a6
24 ply Ka1-b1 N: 1255377 Q: 7666 H: 1207302 Wert: 2.43
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-d8 Kc2-c3 Kd8-e7 Kc3-c4
Ke7-f6 Kc4-b5 Kf6-g6 Kb5-c6 Kg6-h5 Kc6xd6 Kh5-h4 Kd6-e6 Kh4-g4 d5-d6 Kg4xf4
Ke6-d5 Kf4-e3
25 ply Ka1-b1 N: 1647284 Q: 12923 H: 1584838 Wert: 2.43
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-d8 Kc2-c3 Kd8-c7 Kc3-d3
Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7
Kc3-d3 Kc7-c8 Kd3-d2
26 ply Ka1-b1 N: 1794652 Q: 15250 H: 1728626 Wert: 2.43
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-d8 Kc2-c3 Kd8-c7 Kc3-d3
Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7
Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7
27 ply Ka1-b1 N: 2073466 Q: 19247 H: 1998103 Wert: 2.45
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-d8 Kc2-c3 Kd8-c7 Kc3-d3
Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7
Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3
28 ply Ka1-b1 N: 2486750 Q: 34625 H: 2402516 Wert: 2.45
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-d8 Kc2-c3 Kd8-c7 Kc3-d3
Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7
Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7
29 ply Ka1-b1 N: 8651563 Q: 91858 H: 8530187 Wert: 2.45
Ka1-b1 Ka7-b7 Kb1-c1 Kb7-c7 Kc1-d1 Kc7-d7 Kd1-c2 Kd7-c8 Kc2-d2 Kc8-d7 Kd2-c3
Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3 Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7
Kd2-c3 Kd7-c7 Kc3-d3 Kc7-c8 Kd3-d2 Kc8-d7 Kd2-c3
Tiefe V: 29 ply; Tiefe N: 39 ply; Tiefe Q:
40 ply; Alpha-Cutoffs 1325425; Beta-Cutoffs 2508660;
Nullmove-Cutoffs 0.00 %; Hash: Store 74170; Hash: Acc +
8530187; Hash: Acc - 22810; Hash: Zug gut 3428287; Knoten
N: 8651563; Knoten Q: 91858; Knoten total:
8743421; Gegenfeldsysteme: 76; Verbrauchte Zeit: 198 sec;
Geschwindigkeit: 44158 nod/sec;
Rafael B. Andrist
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