Author: Dann Corbit
Date: 14:27:48 10/10/01
Go up one level in this thread
On October 10, 2001 at 13:16:34, Sven Reichard wrote:
>Thought you might like this.
>
>Bernhard Gaerths, "Das Matt", 1942
>
>[D] 8/8/ppPP4/kp1Pp1P1/1p2P1pb/1K1P4/P4B11/8 w - -
>
>Please indicate your result! I'd also be interested in what other programs
>think.
>
>Alice fails to solve it in reasonable time.
GLC picks the key move immediately (as do all other programs I have tried) and
sees it as a winning move in one and one half minutes. Bxb6+ might also be a
good move, because GLC ponders a very long time on that one on certain plies of
analysis.
Green Light Chess
Version 2.15c
Copyright (c) 2000, 2001 Tim Foden; All Rights Reserved.
Error loading evaluation values: Failed to open file: glc215c.eval
Hash table size is 6.0MB
Opening book "opening.book" contains 1619990 nodes (file version 1)
>hash 300
Hash table size set to: 192.0MB
>post
>epd 999 \m12.epd m12.out
Line 001: Test [Be1]...
>
Game stage: Endgame
Current eval: -1.38
Ply Time Score Nodes Principal Variation
5 0.01 -2.843 7538 d7 h1=Q 2. Bxb6+ Kxb6 3. d8=Q+ Kc5 4. Qe7+ Kd4 5.
Qxb4+ Kxd3
5 0.02 -2.843 9090 d7 h1=Q 2. Bxb6+ Kxb6 3. d8=Q+ Kc5 4. Qe7+ Kd4 5.
Qxb4+ Kxd3
6 0.03 -- 16214 d7 (a=-3.24 b=-2.44 e=-3.24)
6 0.04 -4.178 23920 d7 h1=Q 2. Bxb6+ Kxb6 3. d8=Q+ Kc5 4. Qe7+ Kd4 5.
Qxb4+ Kxd3 6. Qc3+ Kxe4
6 0.06 -4.178 34434 d7 h1=Q 2. Bxb6+ Kxb6 3. d8=Q+ Kc5 4. Qe7+ Kd4 5.
Qxb4+ Kxd3 6. Qc3+ Kxe4
7 0.13 -- 70458 d7 (a=-4.58 b=-3.78 e=-4.58)
7 0.18 -10.449 102129 d7 g1=Q 2. Bxg1 hxg1=Q 3. Kc2 Qc5+ 4. Kd2 Bxg5+ 5.
Ke2
7 0.25 -6.714 136377 a3 bxa3 2. c7 h1=Q 3. Bg1 Qxg1 4. c8=Q Bxg5 5. Qxg4
7 0.27 -6.714 149676 a3 bxa3 2. c7 h1=Q 3. Bg1 Qxg1 4. c8=Q Bxg5 5. Qxg4
8 0.38 ++ 210968 Be1 (a=-7.11 b=-6.31 e=-6.31)
8 0.42 -3.841 232476 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=Q
8 0.43 -3.841 239386 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=Q
9 0.44 ++ 248405 Be1 (a=-4.24 b=-3.44 e=-3.44)
9 0.50 -- 282933 Be1 (a=-3.44 b=321.00 e=-3.44)
9 0.51 -3.440 289986 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Qg7 5. Nb7+
Qxb7 6. cxb7 g1=Q {ht}
9 0.51 -3.440 290007 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Qg7 5. Nb7+
Qxb7 6. cxb7 g1=Q {ht}
10 0.68 -- 388687 Be1 (a=-3.84 b=-3.04 e=-3.84)
10 0.72 ++ 413301 Be1 (a=-321.00 b=-3.84 e=-3.84)
10 0.73 -3.631 419159 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Qg7 5. Nb7+
Qxb7 6. cxb7 g1=Q 7. b8=Q Qd4
10 0.73 -3.631 419180 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Qg7 5. Nb7+
Qxb7 6. cxb7 g1=Q 7. b8=Q Qd4
11 0.75 -3.507 427379 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
g6
11 1.09 -3.507 621944 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
g6
12 2.04 -- 1131229 Be1 (a=-3.91 b=-3.11 e=-3.91)
12 2.09 -3.923 1161865 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 g2 10. c8=Q g1=Q
12 2.56 -3.923 1451431 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 g2 10. c8=Q g1=Q
13 2.65 ++ 1505010 Be1 (a=-4.32 b=-3.52 e=-3.52)
13 3.00 -1.914 1698221 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Bh4 5. gxh7
Bxd8 6. a3 bxa3 7. h8=Q g1=Q 8. Qxd8
13 5.56 -1.914 3120665 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Bh4 5. gxh7
Bxd8 6. a3 bxa3 7. h8=Q g1=Q 8. Qxd8
14 8.53 -- 4823200 Be1 (a=-2.31 b=-1.51 e=-2.31)
14 8.80 -2.447 4990700 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Bh4 5. a3
bxa3 6. gxh7 Bxd8 {ht}
14 10.52 -2.447 6079858 Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. g6 Bh4 5. a3
bxa3 6. gxh7 Bxd8 {ht}
15 27.42 -- 15458k Be1 (a=-2.85 b=-2.05 e=-2.85)
15 28.42 -3.943 16027k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 g2 10. c8=Q g1=Q 11. Qc1 Qg3 12. Qb1
15 40.77 -3.943 22993k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 g2 10. c8=Q g1=Q 11. Qc1 Qg3 12. Qb1
16 42.92 -4.048 24166k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 g2 10. c8=Q g1=Q 11. Qc1 Qg3 12. Qb1 Bc3
16 1:20 -4.048 44985k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 g2 10. c8=Q g1=Q 11. Qc1 Qg3 12. Qb1 Bc3
17 1:24 ++ 46936k Be1 (a=-4.45 b=-3.65 e=-3.65)
17 1:30 +3.312 50186k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 Bd2 10. c8=Q Bxg5 11. Qe6 Be3 12. Qd6 {ht}
17 8:16 +3.312 280406k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 Bd2 10. c8=Q Bxg5 11. Qe6 Be3 12. Qd6 {ht}
18 12:40 -- 431396k Be1 (a=2.91 b=3.71 e=2.91)
18 12:42 ++ 432887k Be1 (a=-321.00 b=2.91 e=2.91)
18 12:48 +4.034 436249k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 Bd2 10. c8=Q Bxg5 11. Qe6 Bf4 12. Qd5 Bd2 13.
Qxe5
18 12:48 +4.034 436249k Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5.
cxb7 g1=Q 6. b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9.
c7 Bd2 10. c8=Q Bxg5 11. Qe6 Bf4 12. Qd5 Bd2 13.
Qxe5
local: t=16:39 nps=571448.7 n=570886402 (26.8% / 73.2%) fh=86.6%
total: t=16:39 nps=571448.7 n=570886402 draws=1469676
trans: probes=151610972 hits=46874415 (30.92%) draft=31509497 (20.78%)
tcuts: exact=2335 (0.00%) upper=22691542 (14.97%) lower=4183712 (2.76%)
tstor: exact=11983 (0.01%) upper=66182986 (73.38%) lower=23996535 (26.61%)
ext: check=80099074 recap=1411855 ppush=3340458 1rep=6988259 thrt=0
q-moves: gen=344583039 tested=170531723 made/un=73383572 max-dep=16
max eval diff: part-1=8.117 part-2=1.623
!m Bf2-e1 3634 38 Bxb6+ >
move f2e13 7/16 Bxb6+ >
time left 10.00
-> Score=3634 PV=Be1 Bxe1 2. d7 h1=Q 3. d8=N Qh7 4. Nb7+ Qxb7 5. cxb7 g1=Q 6.
b8=N Qc5 7. Nc6+ Qxc6 8. dxc6 g3 9. c7 Bd2 10. c8=Q Bxg5 11. Qe6 Bf4 12. Qd5 Bd2
13. Qxe5
--------------------------------------------
8/8/ppPP4/kp1Pp1P1/1p2P1pb/1K1P4/P4Bpp/8 w - - bm Be1;
Line 001: Test [Be1]: passed in 0.38 seconds [score=3.634]
Passed 1 out of 1 (0 invalid)
--------------------------------------------
Test run complete
1 0.38
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
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