CCRL 40/15
Downloads and Statistics
May 1, 2021
Testing summary:
Total: 1'240'737 games
played by 2'832 programs

White wins: 425'216 (34.3%)
Black wins: 312'397 (25.2%)
Draws: 503'124 (40.6%)
White score: 54.5%

Engine Details

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Stockfish 13 64-bit 4CPU in CCRL 40/15, 2021-05-01
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Tested by CCRL team, 2005-2021, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/15 main list:
Stockfish 13 64-bit 4CPU is #1 with rating of 3549 Elo points (+19 -18),
based on 1018 games: 556 wins, 0 losses and 462 draws
Score: 77.3%, Average opponent: −181.4, Draws: 45.4%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - Fat Fritz 2 (in SF) 64-bit 4CPU         3525  26.0-26.0  (+0 -0 =52)   96.6   -24
 - Dragon by Komodo 64-bit 4CPU            3497  29.0-21.0  (+8 -0 =42)  100.0   -12
 - RubiChess 2.1 64-bit 4CPU               3411   8.5-3.5   (+5 -0 =7 )  100.0   -16
 - Komodo 13.1 64-bit 4CPU                 3402  36.5-13.5  (+23-0 =27)  100.0    -8
 - Igel 3.0.0 64-bit 4CPU                  3401  26.5-7.5   (+19-0 =15)  100.0   +28
 - Houdini 6 64-bit 4CPU                   3398  39.5-12.5  (+27-0 =25)  100.0   +10
 - SlowChess Blitz 2.5 64-bit 4CPU         3396  41.5-10.5  (+31-0 =21)  100.0   +42
 - Ethereal 12.75 64-bit 4CPU              3392  43.0-13.0  (+30-0 =26)  100.0   +12
 - Fire 8 64-bit 4CPU                      3385  38.5-11.5  (+27-0 =23)  100.0    +3
 - Nemorino 6.00 64-bit 4CPU               3384  40.0-12.0  (+28-0 =24)  100.0    +4
 - Nemorino 6.05 64-bit 4CPU               3376  30.0-8.0   (+22-0 =16)  100.0   +14
 - Igel 2.9.0 64-bit 4CPU                  3361  38.5-11.5  (+27-0 =23)  100.0   -18
 - RubiChess 2.0 64-bit 4CPU               3356  24.0-8.0   (+16-0 =16)  100.0   -39
 - Komodo 13.3 64-bit                      3344  39.0-9.0   (+30-0 =18)  100.0    +6
 - Lc0 0.27.0 w703810 64-bit 4CPU          3336  27.0-11.0  (+16-0 =22)  100.0   -90
 - Booot 6.5 64-bit 4CPU                   3336  22.5-9.5   (+13-0 =19)  100.0   -97
 - Xiphos 0.6 64-bit 4CPU                  3330  42.5-7.5   (+35-0 =15)  100.0   +36
 - RofChade 2.3 64-bit 4CPU                3311  88.0-16.0  (+72-0 =32)  100.0   +10
 - Pedone 3.0 64-bit 4CPU                  3303  46.5-5.5   (+41-0 =11)  100.0   +73
 - Laser 1.7 64-bit 4CPU                   3286 100.0-14.0  (+86-0 =28)  100.0   +28


Created in 2005-2013 by CCRL team
Last games added on May 1, 2021