Author: Slater Wold
Date: 12:30:13 07/16/02
Go up one level in this thread
On July 16, 2002 at 15:03:48, Gian-Carlo Pascutto wrote:
>From a game Sjeng-Hiarcs
>
>[D]8/8/6b1/1k6/p2K4/P7/1P6/8 b - - 0 71
>
>My engine statically says this is a draw (bishop + wrong pawn).
>
>In reality, black mates in 23 or less.
>
>Makes my search go bonkers (and for some other programs as well)
>
>Sjeng 12.14 Maastricht - Hiarcs 7.32
>8/8/6b1/1k6/p2K4/P7/1P6/8 b - - 0 1
>
>Analysis by Sjeng 12.14 Maastricht:
>
>71...Bf5 72.Kc3
> = (0.00) Depth: 2 00:00:00
>71...Bf5 72.Kc3 Bb1
> = (0.00) Depth: 3 00:00:00
>71...Bf5 72.Kc3 Bb1
> = (0.00) Depth: 3 00:00:00
>71...Bf5 72.Kc3 Bb1 73.Kd2
> = (0.00) Depth: 4 00:00:00
>71...Bf5 72.Kc3 Bb1 73.Kd2
> = (0.00) Depth: 4 00:00:00
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5
> = (0.00) Depth: 5/7 00:00:00
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5
> = (0.00) Depth: 5/7 00:00:00
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5 74.Kc3 Bb1 75.Kd2 Bf5 76.Kc3
> = (0.00) Depth: 6/7 00:00:00 3kN, tb=32
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5 74.Kc3 Bb1 75.Kd2 Bf5 76.Kc3
> = (0.00) Depth: 6/10 00:00:00 5kN, tb=43
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5 74.Kc3 Bb1 75.Kd2 Bf5 76.Kc3
> = (0.00) Depth: 7/10 00:00:00 8kN, tb=68
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5 74.Kc3 Bb1 75.Kd2 Bf5 76.Kc3
> = (0.00) Depth: 7/12 00:00:00 13kN, tb=102
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5 74.Kc3 Bb1 75.Kd2 Bf5 76.Kc3
> = (0.00) Depth: 8/12 00:00:00 18kN, tb=147
>71...Bf5 72.Kc3 Bb1 73.Kd2 Bf5 74.Kc3 Bb1 75.Kd2 Bf5 76.Kc3
> = (0.00) Depth: 8/12 00:00:00 22kN, tb=181
>71...Bf5 72.Kd5 Bd3 73.Kd4 Bf5 74.Kd5 Bd3 75.Kd4 Bf5
> = (0.00) Depth: 9/12 00:00:00 36kN, tb=350
>71...Bf5 72.Kd5 Bd3 73.Kd4 Bf5 74.Kd5 Bd3 75.Kd4 Bf5
> = (0.00) Depth: 9/14 00:00:00 55kN, tb=549
>71...Bf5 72.Kd5 Bd3 73.Kd4 Bf5 74.Kd5 Bd3 75.Kd4 Bf5
> = (0.00) Depth: 10/14 00:00:00 60kN, tb=672
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3
> = (-0.01) Depth: 10/19 00:00:00 79kN, tb=944
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3
> = (-0.01) Depth: 10/19 00:00:00 88kN, tb=1103
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3
> = (-0.01) Depth: 11/19 00:00:00 95kN, tb=1328
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3
> = (-0.01) Depth: 11/19 00:00:00 125kN, tb=1910
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3 76.Kxb3
> = (-0.01) Depth: 12/19 00:00:01 144kN, tb=2258
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3 76.Kxb3
> = (-0.01) Depth: 12/19 00:00:01 173kN, tb=2727
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3 76.Kxb3
> = (-0.01) Depth: 13/19 00:00:01 204kN, tb=3305
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3 76.Kxb3
> = (-0.01) Depth: 13/22 00:00:01 251kN, tb=4163
>71...Bf7
> ³ (-0.51) Depth: 14/22 00:00:01 280kN, tb=4956
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3 axb3 76.Kxb3
> = (-0.01) Depth: 14/22 00:00:01 291kN, tb=5383
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg6+ 74.Kc3 Bf5 75.b3
> = (-0.01) Depth: 14/23 00:00:01 337kN, tb=6708
>71...Bf7
> ³ (-0.51) Depth: 15/23 00:00:01 380kN, tb=7181
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg8 74.Kc3 Bc4 75.Kd2 Kd4 76.Kc1 Kd3 77.Kb1 Bb3
>78.Kc1 Bg8 79.b3 Bxb3
> -+ (-3.23) Depth: 15/23 00:00:01 477kN, tb=8122
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg8 74.Kc3 Bc4 75.Kd2 Kd4 76.Kc1 Kd3 77.Kb1 Bb3
>78.Kc1 Bg8 79.b3 Bxb3
> -+ (-3.23) Depth: 15/24 00:00:02 611kN, tb=9871
>71...Bf7
> -+ (-3.99) Depth: 16/24 00:00:02 618kN, tb=10161
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg8 74.Kc3 Bc4 75.Kc2 Kd4 76.Kb1 Kd3 77.Kc1 Bf7
>78.Kb1 Kd4 79.Kc1 Kc4 80.Kc2 Bg6+
> -+ (-3.23) Depth: 16/24 00:00:02 744kN, tb=11595
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bg8 74.Kc3 Bc4 75.Kc2 Kd4 76.Kb1 Kd3 77.Kc1 Bf7
>78.Kb1 Kd4 79.Kc1
> -+ (-3.23) Depth: 16/27 00:00:02 1078kN, tb=16039
>71...Bf7
> -+ (-3.99) Depth: 17/27 00:00:02 1101kN, tb=16279
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bb3 74.Kc3 Bc4 75.Kd2 Kd4 76.Kc1 Bd3 77.Kd2 Kc4
>78.Kd1 Kc5 79.b3 axb3 80.Kd2 Kc4 81.Kc1
> -+ (-5.03) Depth: 17/27 00:00:03 1428kN, tb=18212
>71...Bf7 72.Kc3 Kc5 73.Kd3 Bb3 74.Kc3 Bc4 75.Kd2 Kd4 76.Kc1 Bd3 77.Kd2 Kc4
>78.Kd1 Kc5 79.b3 axb3 80.Kd2 Kc4 81.Kc1
> -+ (-5.03) Depth: 17/34 00:00:03 1504kN, tb=20000
>71...Bf7
> -+ (-5.58) Depth: 18/34 00:00:03 1541kN, tb=20560
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.Kd2 Bb3 76.Ke2 Kd4 77.Kd2 Kc4
> -+ (-#26) Depth: 18/34 00:00:05 3958kN, tb=49329
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.Kd2 Bb3 76.Ke2 Kd4 77.Kd2 Kc4
> -+ (-#26) Depth: 18/38 00:00:05 4042kN, tb=52732
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.b3 axb3
> -+ (-#23) Depth: 19/38 00:00:05 4281kN, tb=78516
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.b3 axb3
> -+ (-#23) Depth: 19/38 00:00:06 4382kN, tb=82299
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.b3 axb3
> -+ (-#23) Depth: 20/38 00:00:06 4664kN, tb=108663
>71...Bf7 72.Kc3 Kc5 73.Kd3 Kd5 74.Kc3 Ke4 75.b3 axb3
> -+ (-#23) Depth: 20/38 00:00:06 4793kN, tb=113744
>
>(Pascutto, Gent 16.07.2002)
>
>--
>GCP
Crafty 18.15 on a dual AMD 1.73Ghz:
White(1): setboard 8/8/6b1/1k6/p2K4/P7/1P6/8 b - - 0 71
Black(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 1:00 (1:00)
nss depth time score variation (1)
starting thread 1
(3) 11-> 1.11 -0.01 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bg6+ 4.
Kc3 Bb1 5. b4+ axb3 <HT>
(2) 12 1.20 -0.01 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bg6+ 4.
Kc3 Bb1 5. b4+ axb3 <HT>
(3) 12-> 1.23 -0.01 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bg6+ 4.
Kc3 Bb1 5. b4+ axb3 <HT>
(2) 13 1.61 -0.01 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bg6+ 4.
Kc3 Bb1 5. b4+ axb3 <HT>
(4) 13-> 2.59 -0.01 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bg6+ 4.
Kc3 Bb1 5. b4+ axb3 <HT>
14 3.05 ++ 1. ... Bf7!!
(2) 14-> 5.08 -0.40 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bg6+ 4.
Kc3 Bb1 5. b4+ axb3 <HT>
15 5.36 ++ 1. ... Bf7!!
15 10.55 -2.88 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bd5 4.
Kc3 Bc4 <HT>
15-> 11.14 -2.88 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bd5 4.
Kc3 Bc4 <HT>
16 11.69 ++ 1. ... Bf7!!
16 11.84 -3.63 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. Kd2 Kd4 6. Kc1 Kd3 7. Kd1
Bb3+ 8. Ke1 Kc2 9. Kf2 Kxb2
(3) 16-> 12.06 -3.63 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. Kd2 Kd4 6. Kc1 Kd3 7. Kd1
Bb3+ 8. Ke1 Kc2 9. Kf2 Kxb2
17 12.25 ++ 1. ... Bf7!!
(2) 17 12.42 -5.36 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. Kd2 Kd4 6. Kc1 Kd3 7. Kb1
Kd2 8. Ka1 Kc2 9. b4 axb3
(4) 17-> 12.89 -5.36 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. Kd2 Kd4 6. Kc1 Kd3 7. Kb1
Kd2 8. Ka1 Kc2 9. b4 axb3
18 12.98 ++ 1. ... Bf7!!
(4) 18-> 17.05 -5.75 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. Kd2 Kd4 6. Kc1 Kd3 7. Kb1
Kd2 8. Ka1 Kc2 9. b4 axb3
19 17.08 ++ 1. ... Bf7!!
(3) 19 27.41 -Mat24 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bd5 4.
Kc3 Bc4 5. Kc2 Kd4 <HT>
19-> 28.91 -Mat24 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Bd5 4.
Kc3 Bc4 5. Kc2 Kd4 <HT>
20 29.41 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <HT>
(2) 20-> 29.91 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <HT>
21 30.11 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 21-> 31.66 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
22 32.06 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 22-> 33.36 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
23 33.78 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 23-> 36.48 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
24 37.34 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 24-> 38.86 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
25 40.38 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 25-> 43.02 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
26 44.91 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 26-> 46.63 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
27 49.83 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 27-> 53.23 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
28 55.31 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
(2) 28-> 58.55 -Mat23 1. ... Bf7 2. Kc3 Kc5 3. Kd3 Kd5 4.
Kc3 Ke4 5. b4 axb3 <EGTB>
time=1:00 cpu=187% mat=-2 n=33954446 fh=98% nps=562k
ext-> chk=819056 cap=3295 pp=139948 1rep=2795 mate=26
predicted=0 nodes=33954446 evals=2206527
endgame tablebase-> probes done=155417 successful=56938
SMP-> split=5200 stop=219 data=9/32 cpu=1:53 elap=1:00
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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