Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Request for move ordering analysis

Author: Gian-Carlo Pascutto

Date: 09:38:12 05/04/01

Go up one level in this thread


On May 03, 2001 at 16:54:17, Dann Corbit wrote:

>With this subset of 28 WAC records, could anyone who is willing run their chess
>engine against this set:
>ftp://cap.connx.com/pub/criminals.epd
>
>And tell me what percentage of correct first move is recieved by their program?

Athlon 1G, 2 million hash entries (*3 hash tables), 10 sec per move

In order:

95,7%, Rxb2, +1.7
89,9%, Nxa7, -0.21 (failing high)
93,3%, Nc2, +0,61
90,2%, g5, -0.40
95,2%, Kb3, +4.5
91,1%, g6, +3.10
91,3%, Kf1, -1.3  (horrible branching factor)
87,4%, Re8, +7.6
88,1%, Qg2, +0.14
90,2%, Nxd5, +0.4 (failing high)
91,2%, Nb4, +0.03
89,0%, Rcd1, +0.75 (horrible branching factor)
92,7%, Rh1, +3.85 (failing high)
90,1%, bxa3, +0.30
90.4%, Bxe4, +1.75 (failing high)
93,9%, Rh7, +0.88
94,5%, a4, +3.87
92,7%, Qe4, +3.95
93,9%, Rc1, +5.15
96,3%, Qxh7, mate (exceptional amount of ply 2 PV changes)
87,3%, Re2, +3.16 (faling high with horrible branching factor)
93,0%, Qe5, +2.10
90,2%, exf6, +1.64
91.5%, O-O, +0.97
91,1%, Qg4, +1.79 (failing high)
96,5%, Ng5, mate
92,4%, Nfg5, mate (bad branching factor)
89,3%, Qg5, -1.13
89,5%, Qh4, -0.94

Best move ordering:

[D]2rq1rk1/pp3ppp/2n2b2/4NR2/3P4/PB5Q/1P4PP/3R2K1 w - - bm Qxh7+; id "WAC.241";

Middlegame phase.
Time for move : 1000
 2     -65     7       52  Rxf6 ??
 2    -129     7      160  Rxf6 Qxf6
 2    -128     7      232  Rd2 !
 2       5     7      307  Rd3 !
 2     -11     7      388  Kf1 !
 2      -3     7      470  Kh1 !
 2     -90     7      554  Kf2 !
 2       6     7      659  g3 !
 2      10     7      739  g4 !
 2       9     7      824  a4 !
 2     -90     7      911  Ba2 !
 2     -90     8      994  Bc2 !
 2       4     8     1078  Ba4 !
 2       9     8     1202  Qg3 !
 2     -90     8     1286  Qf3 !
 2       4     8     1358  Qe3 !
 2     -90     8     1438  Qd3 !
 2     -90     8     1555  Qg4 !
 2     -85     8     1635  Qh5 !
 2      29     8     1720  Nf3 !
 2      33     8     1828  Nf3 Be7
 3     -74     8     2000  Nf3 ??
 3     -16     9     3329  Qg3 !
 3       5     9     3875  Qe3 !
 3       9    10     4831  Nxc6 !
 3      20    11     5635  Nxc6 bxc6 Qg4 Be7
 4      35    12     7498  Nxc6 bxc6 Qc3 Bg5 <Rdf1>
 4      36    18    14128  Rxf6 !
 4      70    18    14236  Rxf6 !!
 4     139    19    14743  Rxf6 Qxf6
 4     139    19    14788  Rxf6 Qxf6
 5     139    21    16687  Rxf6 Qxf6 Bxf7+ <Rxf7> <Qxc8+> <Rf8> <Qc7>
 5     139    27    24935  Rxf6 Qxf6 Bxf7+ <Rxf7> <Qxc8+> <Rf8> <Qc7>
 6      89    28    26313  Rxf6 ??
 6      89    43    46956  Rxf6 !!
 6      89    43    46987  Rxf6
 6      89    43    47032  Rxf6
 7     139    62    69482  Rxf6 !!
 7     192    90   104578  Rxf6 gxf6 Qg4+ Kh8 Nxf7+ Rxf7 Bxf7 Rc7 Be6 Re7 Bf5
 7     193   149   174225  Qxh7+ !
 7     489   198   224044  Qxh7+ !!
 7  999982   233   251150  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1
 7  999982   234   251350  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1
 8  999982   276   285862  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 <Rxh4> <Bxb2>

 8  999982   277   286090  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 <Rxh4> <Bxb2>
 9  999988   357   371917  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#
 9  999988   359   374371  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#
10  999988   488   534703  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#
10  999988   537   586591  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#
11  999988   759   858299  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#
11  999988   866   967344  Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#
Used time : 866
Learning score: 999988  best: 29  depth:11  hash: DCECD10D

Nodes: 967344 (4.40% qnodes)
NPS: 113272
ECacheProbes : 526209   ECacheHits : 82710   HitRate : 15.718059%
TTStores : 715282 TTProbes : 1311226   TTHits : 344214   HitRate : 26.251290%
NTries : 340946  NCuts : 251093  CutRate : 73.645757%  TExt: 17932
DeltaTries : 0  DeltaCuts : 0  CutRate : 0.000000%
Check extensions: 261853  Razor drops : 0  Razor Material : 2687885
Move ordering : 96.394842%
Material score: 0   Eval : 49

Worst move ordering:

[D]1rb1r1k1/p1p2ppp/5n2/2pP4/5P2/2QB4/qNP3PP/2KRB2R b - - bm Re2; id "WAC.252"

Middlegame phase.
Time for move : 1000
 2     149     8      246  Qa1+ Kd2 Qxb2 Qxb2 Rxb2
 2     149     8      379  Qa1+ Kd2 Qxb2 Qxb2 Rxb2
 3      99     9      728  Qa1+ ??
 3     100     9      946  Nxd5 !
 3     100     9     1288  <Nxd5> <Bxh7+> <Kxh7> <Qd3+> <Kg8>
 4     129    11     3114  Qa1+ Kd2 Qxb2 Qxc5 Qb7 Kc1 Nxd5
 4     130    11     3627  Nxd5 !
 4     150    11     3791  Nxd5 !!
 4     149    12     5059  Nxd5 ??
 5     200    14     6009  Nxd5 !!
 5     266    14     6350  Nxd5 Qxc5 <Qxb2+> <Kd2> <Nxf4>
 5     266    17     9408  Nxd5 Qxc5 <Qxb2+> <Kd2> <Nxf4>
 6     229    34    26260  Nxd5 Bc4 Nxc3 Bxa2 Nxa2+ Kb1 Be6 Bf2
 6     230   390   406009  Re2 !
 6     316   680   757471  Re2 !!
Used time : 1000
Learning score: 316  best: 42  depth:5  hash: 5D1DF516

Nodes: 1097728 (22.37% qnodes)
NPS: 110993
ECacheProbes : 836120   ECacheHits : 59602   HitRate : 7.128394%
TTStores : 882970 TTProbes : 1410109   TTHits : 208174   HitRate : 14.762962%
NTries : 294551  NCuts : 145597  CutRate : 49.429982%  TExt: 3857
DeltaTries : 0  DeltaCuts : 0  CutRate : 0.000000%
Check extensions: 178256  Razor drops : 0  Razor Material : 854395
Move ordering : 87.391208%
Material score: 225   Eval : -303

Move ordering:

1) PV move
2) Hash move
3) Winning captures (SEE)
4) Even and near-even (*) captures (SEE)
5) Killer moves (3)
6) History moves
7) Losing captures (SEE)

(*) A near-even capture is one whose SEE value is above -50 centipawns
Note that my SEE does not consider stacked attackers.

--
GCP



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.