Author: Slater Wold
Date: 11:19:27 01/02/04
Go up one level in this thread
On January 02, 2004 at 14:10:59, Luis Smith wrote:
>Someone posted this position in the Winboard forum
>
>[D]3r4/1K6/5N2/8/8/4k3/8/8 w - - 7 98
>
>This is what Crafty displays under analysis mode.
>
>depth=0 -327.39 1. Nh7 <EGTB>
>Nodes: 0 NPS: 0
>Time: 00:00:00.01
>
>If you disable EGTB's it displays one of the drawing moves. However if you
>force it to play as black it plays Ng4+ one of the drawing moves.
It's not a bug. Crafty simply cannot play this ending without TBs.
Initializing multiple threads.
System is SMP, not NUMA.
EPD Kit revision date: 1996.04.21
found computer opening book file [./bookc.bin].
hash table memory = 192M bytes.
pawn hash table memory = 12M bytes.
EGTB cache memory = 16M bytes.
6 piece tablebase files found
36513kb of RAM used for TB indices and decompression tables
max threads set to 2
playing a computer!
resign after 5 consecutive moves with score < -9.
noise level set to 20000.
pondering disabled.
Crafty v19.8 (2 cpus)
White(1): setboard 3r4/1K6/5N2/8/8/4k3/8/8 w - - 7 98
1. Nh5 Rd1 2. Nf6 Ra1 3. Ng8 Rb1+ 4. Kc8 Ra1 5. Ne7 Rb1 6. Ng8 Ra1
White(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 22.50 (3:30)
depth time score variation (1)
starting thread 1
2 0.00 -Mat14 1. Nh7 <EGTB>
time=0.00 cpu=100% mat=-2 n=92 fh=100% nps=10K
ext-> chk=9 cap=0 pp=0 1rep=0 mate=0
predicted=0 nodes=92 evals=1
endgame tablebase-> probes=13 hits=13
SMP-> split=4 stop=0 data=1/4096 cpu=0.00 elap=0.00
White(1): Ng4+
time used: 0.02
Initializing multiple threads.
System is SMP, not NUMA.
EPD Kit revision date: 1996.04.21
found computer opening book file [./bookc.bin].
hash table memory = 192M bytes.
pawn hash table memory = 12M bytes.
max threads set to 2
playing a computer!
resign after 5 consecutive moves with score < -9.
noise level set to 20000.
pondering disabled.
Crafty v19.8 (2 cpus)
White(1): setboard 3r4/1K6/5N2/8/8/4k3/8/8 w - - 7 98
White(1): st 60
search time set to 60.00.
White(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 1:00 (1:00)
depth time score variation (1)
starting thread 1
8 0.01 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1
8-> 0.01 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1
9 0.03 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7
9-> 0.03 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7
10 0.09 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1
10-> 0.09 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1
11 0.20 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8
11-> 0.20 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8
12 0.46 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1
12-> 0.48 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1
13 1.01 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7
13-> 1.04 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7
14 2.17 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2
14-> 2.21 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2
15 4.95 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8
15-> 5.03 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8
16 8.50 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1
16-> 8.62 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1
17 14.48 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1 10. Kg8
17-> 14.71 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1 10. Kg8
18 23.57 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1 10. Kg8
Ka1
18-> 23.98 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1 10. Kg8
Ka1
19 42.51 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1 10. Kg8
Ka1 11. Kh8
19-> 43.04 -0.58 1. Ng4+ Kd2 2. Nh6 Rd7+ 3. Kc8 Rd3
4. Nf7 Ra3 5. Kd8 Kc1 6. Ke7 Kb1 7.
Kf8 Ka1 8. Kg7 Ka2 9. Kh8 Kb1 10. Kg8
Ka1 11. Kh8
time=1:00 cpu=195% mat=-2 n=138587065 fh=88% nps=2.31M
ext-> chk=9398289 cap=0 pp=0 1rep=41120 mate=53194
predicted=0 nodes=138587065 evals=1
endgame tablebase-> probes=0 hits=0
SMP-> split=2388 stop=118 data=9/4096 cpu=1:57 elap=1:00
White(1): Ng4+
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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