Author: Dann Corbit
Date: 18:22:56 12/20/04
Go up one level in this thread
Here is Beowulf, with material only eval:
Welcome to Beowulf Version 2.3b6!
Could not find Opening Book Extras\BeoBook.dat!
Could Not Set Parameter max_killer_ply
Could Not Find Personality File default.per. Continuing...
Checking for Tablebase Files
Including 5-man Endgame Table Bases
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
P P P P P P P P
R N B Q K B N R
[1]W > hash 18
Default Hash Size set to 262144 kb
[1]W > st 999
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
P P P P P P P P
R N B Q K B N R
[1]W > sd 999
Default Search Depth set to 999 Ply
[1]W > post
[1]W > new
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
P P P P P P P P
R N B Q K B N R
[1]W > go
[1]W >
Current Position = 0.00
Number of Possible Moves = 20
14 0 46 713978 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6
15 0 99 1565469 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6 f3
16 0 266 3954727 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6 f3 e6
17 0 968 13494893 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6 f3 e6 Kf2
18 0 3297 43551361 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6 f3 e6 Kf2 Bb7
19 0 11660 145959606 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6 f3 e6 Kf2 Bb7 g3
quit
19 0 13996 171236730 a4 a6 a5 b6 axb6 cxb6 c4 d5 cxd5 Qxd5 Ra4 Kd7 Nc
3 Qc6 f3 e6 Kf2 Bb7 g3
Search Time : 140.2 Seconds
Total Nodes Searched : 171236730 (78.4% Qui)
Total Nodes Evaluated : 134330751
Cuts : Delta 0 : SEE 24529442 : Mate 0
: Razor 13510140 : Eval 0
Extensions : Check 12163940 : OneRep 969315 : CMThreat 47195
: Pawn 32801 : Recap 405153 : RevCheck 320733
Hash Stores (Size) : 21693569 (5592373)
Hash Probes (Hits) : 120747642 (20693582)
EGTB Probes (Hits) : 0 (0)
Move Ordering : 87.7%
Best Move = a4
Move Score = 0
[1]W >
Compare that to Beowulf with regular evaluation:
Welcome to Beowulf Version 2.3b6!
Could not find Opening Book Extras\BeoBook.dat!
Could Not Set Parameter max_killer_ply
Could Not Find Personality File default.per. Continuing...
Checking for Tablebase Files
Including 5-man Endgame Table Bases
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
P P P P P P P P
R N B Q K B N R
[1]W > hash 18
Default Hash Size set to 262144 kb
[1]W > st 999
Default Search Time set to 999 seconds
[1]W > sd 999
Default Search Depth set to 999 Ply
[1]W > new
r n b q k b n r
p p p p p p p p
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
P P P P P P P P
R N B Q K B N R
[1]W > post
[1]W > go
[1]W >
Current Position = 0.00
Number of Possible Moves = 20
7 39 60 105111 d4 Nf6 Nf3 d5 Nc3 Nc6 e3
8 2 125 221982 d4 Nf6 Bg5 Ne4 Bf4 e5 Bxe5 Qh4
8 6 239 429138 e4 Nc6 Bb5 Nd4 Bc4 e6 d3 Nf6
9 24 542 970416 e4 d5 exd5 Qxd5 Nc3 Qe6+ Be2 Nf6 d3 Bd7
9 33 717 1284077 d4 Nf6 Nc3 e6 e4 Bb4 Bg5 Bxc3+ bxc3 d5
10 6 1143 2054391 d4 Nf6 Nf3 e6 e3 d5 Bd2 Nc6 Bb5 Bd7
11 29 4214 7298790 d4 Nf6 Nf3 e6 e3 d5 Bd2 b6 Be2 Nbd7
quit
11 29 5884 9923431 d4 Nf6 Nf3 e6 e3 d5 Bd2 b6 Be2 Nbd7
Search Time : 59.06 Seconds
Total Nodes Searched : 9923431 (79.4% Qui)
Total Nodes Evaluated : 7879528
Cuts : Delta 0 : SEE 2166894 : Mate 0
: Razor 453190 : Eval 834
Extensions : Check 107311 : OneRep 5328 : CMThreat 537
: Pawn 1134 : Recap 36584 : RevCheck 512
Hash Stores (Size) : 3477845 (5592373)
Hash Probes (Hits) : 10448243 (1822064)
EGTB Probes (Hits) : 0 (0)
Move Ordering : 74.4%
Best Move = d4
Move Score = 29
[1]W >
Material only eval was achieved in this way:
{regular eval}-->
/* Get a lazy score evaluation
* (material score & simple positional terms plus passed pawns) */
lazyscore = LazyEval(B) + score;
#if defined(MATERIAL_ONLY)
{
return lazyscore;
}
Lazy eval-->
#ifdef MATERIAL_ONLY
{
return ((Count(B->WhitePawns) - Count(B->BlackPawns)) * PAWN_SCORE +
(Count(B->WhiteRooks) - Count(B->BlackRooks)) * ROOK_SCORE +
(Count(B->WhiteQueens) - Count(B->BlackQueens)) * QUEEN_SCORE +
(Count(B->WhiteKnights | B->WhiteBishops) - Count(B->BlackKnights |
B->BlackBishops)) * KNIGHT_SCORE );
}
#endif
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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