Author: Tim Foden
Date: 01:26:49 11/15/02
Go up one level in this thread
On November 14, 2002 at 22:09:42, martin fierz wrote:
>i was looking at eduard nemeth's page on computer chess and stumbled across the
>following famous position:
>
>[D]1k6/8/8/8/8/5p1p/PPP5/6K1 w - - 0 1
GLC2.18 sees that black is winning after 17.81 secs (AXP 1.47GHz, 48MB Hash).
Cheers, Tim.
>anal
Game stage: Endgame
Current eval: -0.563
Ply Time Score Nodes Principal Variation
6 0.04 +0.159 7807 c4 Kc7 2. b4 Kb7 3. a4 Kc6
7 0.04 +0.559 8965 c4 Kc7 2. b4 Kb7 3. a4 h2+ 4. Kxh2 f2 5. Kg2 {++}
7 0.04 +0.710 10777 c4 Kc7 2. b4 Kb7 3. a4 Kc6 4. Kf2
7 0.05 +0.710 14439 c4 Kc7 2. b4 Kb7 3. a4 Kc6 4. Kf2
8 0.07 +0.310 36923 c4 Kc7 2. b4 Kb6 3. b5 {ht} {--}
8 0.07 +0.311 39093 c4 Kc7 2. b4 Kb6 3. a4 Kb7 {ht} {++}
8 0.07 +0.247 41235 c4 Kc7 2. b4 Kb6 3. a4 Kb7 4. a5 Ka6
8 0.11 +0.247 70990 c4 Kc7 2. b4 Kb6 3. a4 Kb7 4. a5 Ka6
Generating internal KP-K end-game table...
Done (0.200 secs) c4 >
9 0.32 +0.477 83380 c4 Kc7 2. b4 Kd6 3. a4 Ke5 4. b5 Ke4 5. Kf2
9 0.34 +0.647 92470 b4 h2+ 2. Kxh2 f2 3. Kg2 f1=Q+ 4. Kxf1 Kc8 5. c4
Kb8 {ht} {++}
9 0.38 +0.700 141305 b4 Kc7 2. a4 Kc6 3. c4 Kb7 {ht}
9 0.39 +0.700 148745 b4 Kc7 2. a4 Kc6 3. c4 Kb7 {ht}
10 0.45 +0.300 198250 b4 Kc7 2. a4 Kc6 3. c4 Kb6 4. a5+ Ka6 5. b5+ Kxa5
6. Kf2 h2 7. c5 {--}
10 0.48 -0.023 229619 b4 Kc7 2. c4 Kc6 3. a3 Kd6 4. a4 Ke5 5. b5 Ke4
10 0.51 -0.023 261245 b4 Kc7 2. c4 Kc6 3. a3 Kd6 4. a4 Ke5 5. b5 Ke4
11 0.57 +0.377 326090 b4 Kc7 2. a4 Kc6 3. a5 Kb5 4. c3 Kc4 5. a6 Kxc3 6.
a7 h2+ 7. Kxh2 {++}
11 0.60 +0.981 359080 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Ka6 5. c4 Ka7 6.
b5 Kb7
11 0.66 +0.981 413906 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Ka6 5. c4 Ka7 6.
b5 Kb7
12 0.71 +1.363 462239 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
b5 Ke3 7. b6
12 0.77 +1.363 521167 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
b5 Ke3 7. b6
13 0.87 +1.161 624239 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
a7 Ke2 7. c4 f2+ 8. Kh2 Ke3 9. a8=Q f1=Q
13 0.96 +1.161 721724 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
a7 Ke2 7. c4 f2+ 8. Kh2 Ke3 9. a8=Q f1=Q
14 1.09 +1.161 853838 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
a7 Ke2 7. c4 f2+ 8. Kh2 Ke3 9. a8=Q f1=Q
14 1.25 +1.161 1021975 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
a7 Ke2 7. c4 f2+ 8. Kh2 Ke3 9. a8=Q f1=Q
15 1.35 +1.561 1128377 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc4 5. a6 Kd3 6.
a7 Ke2 7. a8=Q h2+ 8. Kxh2 f2 {++}
15 1.55 +1.714 1348781 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc6 5. a6 Kb6 6.
b5 Ka7 7. c4 Kb6 8. c5+ Kxb5 9. a7 h2+ 10. Kxh2
15 1.68 +1.714 1497782 b4 Kc7 2. a4 Kb6 3. a5+ Kb5 4. c3 Kc6 5. a6 Kb6 6.
b5 Ka7 7. c4 Kb6 8. c5+ Kxb5 9. a7 h2+ 10. Kxh2
16 3.29 +1.314 3108779 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
c5 Kb8 7. a6 Ka7 8. c6 Kb6 9. Kf2 Kxb5 {--}
16 3.53 +1.315 3363592 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
c5 Kb8 7. a6 Ka7 8. c6 Kb6 9. Kf2 {++}
16 4.14 +0.849 3984173 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. a7 Kxa7 10. c7
Kb7 11. b6
16 5.99 +0.849 6037348 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. a7 Kxa7 10. c7
Kb7 11. b6
17 6.51 +0.838 6598654 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8
17 7.15 +0.838 7307816 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8
18 7.48 +1.238 7657947 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8 12. Kf2 {++}
18 8.38 +1.389 8656459 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8 12. Kf2
18 8.69 +1.389 9009028 b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8 12. Kf2
19 12.98 +0.989 13439k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8 12. Kf2 h2 13. b7+ Kxa7 {--}
19 17.81 -1.460 18438k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8 12. Kf2 h2 13. b7+ Kxb7
19 23.87 -1.460 24768k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
a6+ Kb6 7. c5+ Ka7 8. c6 Kb6 9. c7 Kxc7 10. a7
Kb7 11. b6 Ka8 12. Kf2 h2 13. b7+ Kxb7
20 28.15 -1.480 29305k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
b6 Ka6 7. b7 Kxb7 8. c5 Kb8 9. a6 Ka7 10. c6 Kxa6
11. Kf2 h2 12. c7 Kb5
20 31.32 -1.480 32955k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
b6 Ka6 7. b7 Kxb7 8. c5 Kb8 9. a6 Ka7 10. c6 Kxa6
11. Kf2 h2 12. c7 Kb5
21 53.81 -1.880 56944k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
b6 Ka6 7. b7 Kxb7 8. c5 Kb8 9. a6 Ka7 10. c6 Kxa6
11. Kf2 h2 12. c7 Kb7 13. Kxf3 h1=Q+ {--}
21 1:03 -3.362 66666k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
b6 Ka6 7. b7 Kxb7 8. c5 Kb8 9. c6 Kc7 10. a6 Kxc6
11. a7 Kb7 12. a8=Q+ Kxa8 13. Kf2
21 1:07 -3.362 71472k b4 Kc7 2. a4 Kb6 3. a5+ Ka6 4. c4 Ka7 5. b5 Kb7 6.
b6 Ka6 7. b7 Kxb7 8. c5 Kb8 9. c6 Kc7 10. a6 Kxc6
11. a7 Kb7 12. a8=Q+ Kxa8 13. Kf2
22 3:07 0/10 b4 >exit
local: t=3:12 nps=1088654.2 n=208821289 (37.1% / 62.9%) fh=87.9%
total: t=3:12 nps=1088654.2 n=208821289 draws=389996
trans: probes=76932967 hits=36787086 (47.82%) draft=29113533 (37.84%)
tcuts: exact=3802 (0.00%) upper=16054249 (20.87%) lower=4190175 (5.45%)
tstor: exact=2155 (0.01%) upper=23727650 (64.54%) lower=13034241 (35.45%)
ext: check=26219075 recap=578339 ppush=1843669 1rep=777294 thrt=0
q-moves: gen=37314187 tested=29036165 made/un=19399038 max-dep=8
max eval diff: part-1=5.798 part-2=1.132
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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