Author: Dann Corbit
Date: 17:39:27 06/16/04
Go up one level in this thread
On June 16, 2004 at 20:27:45, Ed Trice wrote:
>I have in my crafty.rc file:
>
>tbpath=D:\Tablesbases
>egtb
>
>I runup an interesting game to the point where crafty would display:
>
>end-game phase
>
>After conducting a search of 15 plies, I still get:
>
>endgame tablebase-> probes = 0 hits = 0
>
>1. Is there a threshhold of simplication that must occur in the parent position
>before the endgame tablebases will be probed?
>
>2. Is there a way to "force" crafty to probe the endgame tablebases during the
>search?
>
>Any feedback would be appreciated.
Get this file:
ftp://cap.connx.com/pub/EPD/pawntest.epd
Start crafty. You should see an EGTB report like this:
E:\programme\winboard\Crafty>crafty-1913.exe
EPD Kit revision date: 1996.04.21
found computer opening book file [./bookc.bin].
ERROR "krafty fischer " is unknown rc-file option
hash table memory = 48M bytes.
pawn hash table memory = 12M bytes.
EGTB cache memory = 8M bytes.
draw score set to 0.00 pawns.
choose from book moves randomly (using weights.)
choose from 5 best moves.
book learning enabled
result learning enabled
position learning enabled
resign after 5 consecutive moves with score < -9.
5 piece tablebase files found
12693kb of RAM used for TB indices and decompression tables
Crafty v19.13
White(1):
Run the following command which will process the epd file:
White(1): epdpfga \epd\pawntest.epd pawntest.out
(adjust the path to point to your pawntest file)
You will see stuff like this in the output:
PFGA: EPD record: 2 ID: Ron Murawski -- Unstoppable passed pawn
time surplus 0.00 time limit 22.50 (3:30)
depth time score variation (1)
8 0.23 -3.25 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 a5 6. Rxc3 Rxf2
8-> 0.38 -3.25 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 a5 6. Rxc3 Rxf2
9 0.53 -3.36 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Rc8+ Kh7 7.
Rc7
9-> 0.87 -3.36 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Rc8+ Kh7 7.
Rc7
10 1.30 -3.26 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc7
10-> 2.22 -3.26 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc7
11 3.03 -3.46 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc8+ Kh7 8. Rc7
11-> 4.54 -3.46 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc8+ Kh7 8. Rc7
12 6.11 -3.25 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc7 g5 8. hxg5 hxg5
12-> 10.08 -3.25 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc7 g5 8. hxg5 hxg5
13 14.73 -3.42 1. ... dxe4 2. Nd4 Nxd4 3. Rxd4 Rxa3
4. Rxe4 Ra2 5. Rc4 c2 6. Kg3 a5 7.
Rc7 Kh7 8. Kf4 Rb2
time=22.54 cpu=96% mat=-1 n=11558517 fh=88% nps=512K
ext-> chk=200668 cap=20621 pp=97213 1rep=26183 mate=86
predicted=0 nodes=11558517 evals=3207183 50move=0
endgame tablebase-> probes=0 hits=0
PFGA: EPD record: 3 ID: J&S42.01
clearing hash tables
time surplus 0.00 time limit 22.50 (3:30) [easy move]
depth time score variation (1)
time=0.00 cpu=100% mat=0 n=9 fh=100% nps=10K
ext-> chk=0 cap=0 pp=0 1rep=0 mate=0
predicted=0 nodes=9 evals=1 50move=0
endgame tablebase-> probes=1 hits=1
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