CCRL 40/2 FRC
Downloads and Statistics
April 3, 2021
Testing summary:
Total: 323'540 games
played by 249 programs

White wins: 130'279 (40.3%)
Black wins: 110'397 (34.1%)
Draws: 82'864 (25.6%)
White score: 53.1%

Engine Details

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Stockfish 2.1.1 (3187+19
−19		)Quote
Authors: Marco Costalba, Joona Kiiski, Stockfish team members Links: List of Authors, Homepage, Development Versions, Testing Framework
Stockfish was originally based on Glaurung by Tord Romstad.
This is one of the 32 Stockfish versions we tested: Compare them!
OpponentELODiffResultsScoreLOSPerf
–   Houdini 2.03270+18
−17		(+83)37 − 63
(+25−51=24)
37.0%
37.0 / 100
0.0%
−7
0 0 = 1 1 1 1 0 1 0 0 0 1 0 = 0 = = 0 0 0 0 0 = 0 0 = 0 = 0 = = 0 = = 0 1 0 0 1 0 0 1 1 0 1 0 0 0 = 0 1 1 0 = = = 1 0 0 0 1 0 1 0 1 0 0 = 1 = 0 1 1 0 0 = 0 1 0 0 0 0 0 0 0 = 1 = 1 = 1 = 1 0 0 0 0 = =
–   Critter 1.23235+21
−20		(+48)41 − 59
(+22−40=38)
41.0%
41.0 / 100
0.0%
−8
0 = 0 1 0 = 0 0 0 0 1 1 1 0 0 = 1 0 = 1 = 0 1 1 = 0 1 1 0 = = 0 = 0 0 0 = 1 0 = = 1 = = 0 = = 0 0 = 0 = 0 0 0 = 1 0 = 0 0 1 = 1 = 0 1 0 0 0 1 = = = 0 = 1 = = 0 = 1 = 0 = 0 = 0 = 0 = = = 1 = 1 0 1 = 0
–   Rybka 4.13162+6
−6		(−25)55.5 − 44.5
(+38−27=35)
55.5%
55.5 / 100
99.4%
+13
= = = 1 1 = 0 0 0 0 = = 1 = 1 0 1 1 = = 0 0 = = 1 = 1 0 1 = 1 0 1 = 1 1 1 = 0 1 1 1 0 1 0 = 0 0 = 1 1 = 0 1 1 = = 0 = = 1 1 1 0 0 1 0 = 1 0 1 = 0 0 1 0 1 1 1 1 = = 0 = 1 = 1 = 1 = = = = 0 1 0 0 1 = =
–   Critter 1.013161+20
−20		(−26)55.5 − 44.5
(+34−23=43)
55.5%
55.5 / 100
97.4%
+9
1 0 = 1 1 1 1 1 1 = 1 = = 0 1 = 1 = 0 0 1 = 1 = 1 = 0 1 1 = 1 = 0 1 = 0 0 = 1 = 1 = = = = 1 1 0 1 1 = 1 1 = 0 0 1 = = = 0 1 = = = = 1 0 = 0 0 1 1 = = = 0 0 0 = 1 1 = = = 0 = = 0 = = 0 1 = = 1 = = 0 0
–   Rybka 33087+13
−13		(−100)63.5 − 36.5
(+48−21=31)
63.5%
63.5 / 100
100.0%
−6
1 = 0 0 = 1 1 = = 1 1 1 1 0 = = = 1 1 0 0 1 1 1 = 0 1 1 = 1 0 = 0 = 0 = 1 = 1 0 1 = 1 1 1 1 = 0 1 1 = 0 1 = 1 = 1 0 0 1 1 1 0 1 = = 0 0 = = = 0 1 1 1 1 = = 1 1 1 = 1 = 1 = 0 1 1 1 1 = 1 = 1 0 1 0 1 =
–   Naum 4.23033+9
−9		(−154)69 − 31
(+51−13=36)
69.0%
69.0 / 100
100.0%
−29
1 1 = 1 1 1 0 = = = = 1 = 0 1 = = = = = 1 1 0 1 = 1 1 = 0 = = 1 = = 1 1 1 1 1 0 1 = 1 1 0 = 1 1 = = 1 1 1 = 1 0 = 1 1 1 1 1 = 1 0 1 1 0 1 1 1 = = 0 1 1 0 0 = 0 = 1 1 = 1 = 1 = = 1 = 1 = 1 1 = = 1 1 1
–   Shredder 123013+8
−8		(−174)76.5 − 23.5
(+65−12=23)
76.5%
76.5 / 100
100.0%
+22
= 1 = 0 1 1 1 1 1 = 1 1 1 1 1 1 0 1 1 1 1 1 1 1 = 1 0 1 1 = = 1 1 0 1 = 1 = 1 1 1 0 = 1 0 1 1 1 = 1 = = = 1 1 = 1 = 1 1 1 0 1 = 0 1 = 0 1 0 1 1 1 = 0 0 1 1 1 1 1 1 = 1 = = 1 1 1 1 1 1 1 = 1 1 = 1 1 1
–   Chiron 1.1a2984+13
−14		(−203)78.5 − 21.5
(+67−10=23)
78.5%
78.5 / 100
100.0%
+10
1 1 1 1 = = = 1 = = 0 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 = = 1 1 1 1 = 1 1 = 1 1 0 1 1 0 = 1 1 1 1 1 0 1 1 1 = = 1 1 = 1 1 1 = 0 = 1 1 1 1 1 1 = 0 = = 1 0 0 1 1 = 1 1 1 = = 1 1 0 1 1 1 1 1 1 = 1 1 1 1 1 =
–   Spike 1.4 Leiden2942+8
−8		(−245)79.5 − 20.5
(+66−7=27)
79.5%
79.5 / 100
100.0%
−30
= 1 1 1 1 1 1 1 1 0 = 1 1 = 1 1 1 1 1 1 1 1 = 1 1 0 1 = = 1 1 = = = 1 1 1 = = 1 1 0 1 1 1 1 1 = 1 1 = = 1 1 1 = 1 1 1 = = 1 1 = 0 0 1 1 = 0 1 1 1 1 1 1 1 = 1 1 1 = 1 = 1 1 1 1 = 1 1 = 1 = 1 = 1 0 1 =
–   Hiarcs 13.22928+8
−8		(−259)86 − 14
(+78−6=16)
86.0%
86.0 / 100
100.0%
+39
= 1 1 1 1 = = 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 = 1 1 1 1 1 = 0 1 = 1 1 1 = = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 0 = 0 1 1 1 1 1 1 1 1 1 1 1 = 1 1 = 1 0 1 1 1 1 0 0 1 1 1 1 1 1 = 1 1 1 = 1 1 1 =
–   Deep Sjeng WC20082878+8
−8		(−309)87.5 − 12.5
(+78−3=19)
87.5%
87.5 / 100
100.0%
−3
= 1 1 1 0 1 1 1 1 = 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1 = 1 = 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 0 1 1 1 = 1 = = 1 1 1 1 = = 1 1 = = 1 1 = 1 1 1 1 1 1 1 1 1 = = 1 1 = 1 1 1 0 1 1 1 1 1 1 1 1 1 = 1 = 1 1
1100 games: 572 wins, 213 losses, 315 draws (28.6%), score: 66.3%

Testing history

Rating changes by day

Participation in the pure lists

Pure listRankRatingNumber of games
Stockfish 2.1.1
played with current
participants of this list		Represented by
1-2-CPU    400Stockfish 190321
All    400Stockfish 190321
Free    100Stockfish 190321
Free 1-2-CPU    100Stockfish 190321
Free single-CPU    100Stockfish 190321
Single-CPU    400Stockfish 190321
Created in 2005-2008 by CCRL team
Last games added on April 3, 2021