Author: Slater Wold
Date: 17:37:11 10/04/03
Go up one level in this thread
On October 04, 2003 at 20:17:49, Slater Wold wrote:
>Who can see this position is lost?
>
>[D]8/6NK/8/1Bk5/P5q1/8/8/8 w - - 0 107
I tried one of my "old school" engines, HIARCS 7.32, and it can see this
position is lost. And quick too!
Hiarcs 7.32
8/6NK/8/1Bk5/P5q1/8/8/8 w - - 0 1
Analysis by Hiarcs 7.32:
1.Kh7-g8
-+ (-2.91) Depth: 1 00:00:00
1.Kh7-g8 Kc5-b6
-+ (-3.06) Depth: 3/7 00:00:00
1.Kh7-g8 Qg4-e4
-+ (-2.80) Depth: 3/7 00:00:00
1.Kh7-g8 Qg4-g6 2.Bb5-e8
-+ (-2.76) Depth: 3/10 00:00:00
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8
-+ (-2.88) Depth: 4/11 00:00:00
1.Kh7-g8 Qg4-g6 2.Bb5-d7 Kc5-b4 3.Bd7-e8
-+ (-2.86) Depth: 5/11 00:00:00 4kN, tb=10
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-e6+ 5.Kg8-f8
-+ (-2.93) Depth: 6/15 00:00:00 9kN, tb=25
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-e7
-+ (-3.11) Depth: 7/17 00:00:00 17kN, tb=76
1.Kh7-g8 Qg4-g6 2.Bb5-d7 Kc5-b6 3.Bd7-e8 Qg6-f6 4.Be8-b5 Qf6-g6 5.Kg8-f8
-+ (-3.16) Depth: 8/21 00:00:00 42kN, tb=190
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-e7 5.Ne8-g7 Kb6-a5
6.Bb5-c6
-+ (-3.30) Depth: 9/22 00:00:00 159kN, tb=501
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-e7 5.Ne8-g7 Kb6-a5
6.Ng7-e8 Qe7-g5+
-+ (-3.31) Depth: 10/27 00:00:00 336kN, tb=1048
1.Kh7-g8 Qg4-g6
-+ (-3.06) Depth: 11/30 00:00:02 1120kN, tb=2591
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-e7 5.Ne8-g7 Kb6-a5
6.Ng7-e8 Qe7-e6+ 7.Kg8-f8
-+ (-3.05) Depth: 11/30 00:00:02 1254kN, tb=3284
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-f5 5.Kg8-g7
-+ (-3.05) Depth: 12/30 00:00:05 2487kN, tb=6086
1.Kh7-g8 Qg4-g6
-+ (-3.30) Depth: 13/30 00:00:07 2964kN, tb=7325
1.Kh7-g8 Qg4-g6
-+ (-3.30) Depth: 13/30 00:00:11 5195kN, tb=9670
1.Kh7-g8 Qg4-g6 2.Kg8-f8 Qg6-f6+ 3.Kf8-g8 Kc5-b6 4.Ng7-e8 Qf6-e7 5.Ne8-g7
-+ (-3.30) Depth: 14/30 00:01:26 36645kN, tb=49562
(, 04.10.2003)
But Crafty cannot see this loss, in several minutes. Anyone want to take a
gander why?
White(1): setboard 8/6NK/8/1Bk5/P5q1/8/8/8 w - - 0 107
White(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 6:00 (6:00)
depth time score variation (1)
starting thread 1
9 0.28 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB>
9-> 0.83 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB> (s=3)
10 0.94 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB> (s=2)
10-> 1.20 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB> (s=3)
11 2.77 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB> (s=2)
11-> 4.47 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB>
12 5.75 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB>
12-> 6.70 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB>
13 8.42 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB>
13-> 8.94 -0.01 1. Kg8 Qb4 2. Be8 Qb8 3. Ne6+ Kb4 4.
Kf8 Qxe8+ <EGTB>
14 20.95 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Nf5+ Ke5 4.
Nh6 Kd5 5. Kg8 Qb1 6. Kh8 Qxb5 <EGTB>
14-> 22.91 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Nf5+ Ke5 4.
Nh6 Kd5 5. Kg8 Qb1 6. Kh8 Qxb5 <EGTB>
15 31.94 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Nf5+ Ke5 4.
Nh6 Kd5 5. Kg8 Qb1 6. Kh8 Qxb5 <EGTB>
15-> 33.36 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Nf5+ Ke5 4.
Nh6 Kd5 5. Kg8 Qb1 6. Kh8 Qxb5 <EGTB>
16 44.81 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Nf5+ Ke5 4.
Nh6 Kd5 5. Kg8 Qb1 6. Kh8 Qxb5 <EGTB>
16-> 47.13 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Nf5+ Ke5 4.
Nh6 Kd5 5. Kg8 Qb1 6. Kh8 Qxb5 <EGTB>
17 1:06 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
17-> 1:08 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
18 1:43 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
18-> 1:47 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
19 2:20 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
19-> 2:24 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
20 3:08 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
20-> 3:13 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <EGTB>
21 5:09 -- 1. Kg8
21 5:11 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <HT>
21-> 5:25 -0.01 1. Kg8 Qb4 2. Kh7 Kd6 3. Kg6 Qxb5 <HT>
(s=2)
time=6:01 cpu=88% mat=-2 n=120838724 fh=85% nps=334k
ext-> chk=12892803 cap=193 pp=46555 1rep=278428 mate=56935
predicted=0 nodes=120838724 evals=40166877
endgame tablebase-> probes done=802197 successful=799294
SMP-> split=2319 stop=429 data=10/32 cpu=5:20 elap=6:01
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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