CCRL 40/15
Downloads and Statistics
November 16, 2024
Testing summary:
Total: 1'967'497 games
played by 3'973 programs

White wins: 610'660 (31.0%)
Black wins: 425'811 (21.6%)
Draws: 931'026 (47.3%)
White score: 54.7%

Engine Details

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Obsidian 9.0 64-bit in CCRL 40/15, 2024-11-16
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, 2005-2024, http://ccrl.chessdom.com/ccrl/4040/

CCRL 40/15 main list:
Obsidian 9.0 64-bit has no rank with rating of 3547 Elo points (+13 -13),
based on 1134 games: 91 wins, 73 losses and 970 draws
Score: 50.8%, Average opponent: −5.0, Draws: 85.5%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - Stockfish 16 64-bit                     3623  20.5-29.5  (+0 -9 =41)    0.0   +23
 - Torch v1 64-bit                         3612  20.5-27.5  (+0 -7 =41)    0.0   +22
 - Dragon by Komodo 3.3 64-bit             3606  20.5-28.5  (+0 -8 =41)    0.0   +11
 - Berserk 12 64-bit                       3589  24.0-34.0  (+1 -11=46)    0.0   -10
 - Caissa 1.16 64-bit                      3567  25.0-27.0  (+2 -4 =46)    0.7    +9
 - Ethereal 14.25 64-bit                   3567  25.5-28.5  (+0 -3 =51)    0.2    +3
 - RubiChess 20230918 64-bit               3550  27.5-28.5  (+1 -2 =53)   35.2    -2
 - Caissa 1.14.1 64-bit                    3549  22.5-25.5  (+1 -4 =43)   41.3   -15
 - Caissa 1.15 64-bit                      3548   8.5-7.5   (+2 -1 =13)   49.6   +20
 - Seer 2.8.0 64-bit                       3547  24.5-27.5  (+1 -4 =47)   50.4   -17
 - Clover 6.1 64-bit                       3543  31.5-26.5  (+6 -1 =51)   70.8   +21
 - Chess System Tal 2.00 Elo 64-bit        3542  28.0-30.0  (+2 -4 =52)   76.4   -15
 - rofChade 3.1 64-bit                     3531  28.5-27.5  (+4 -3 =49)   98.9    -9
 - Rebel EAS 64-bit                        3527  26.0-26.0  (+2 -2 =48)   99.7   -20
 - Uralochka 3.40a 64-bit                  3527  28.5-27.5  (+6 -5 =45)   99.6   -13
 - Koivisto 9.0 64-bit                     3527  28.0-24.0  (+6 -2 =44)   99.9    +2
 - Igel 3.5.0 64-bit                       3524  28.0-24.0  (+4 -0 =48)   99.9    -1
 - Seer 2.7.0 64-bit                       3519  27.5-22.5  (+7 -2 =41)  100.0    +2
 - Alexandria 5.1.0 64-bit                 3519  31.5-23.5  (+8 -0 =47)   99.9   +14
 - Revenge 3.0 64-bit                      3518  25.5-20.5  (+6 -1 =39)  100.0    +2
 - Viridithas 11.0.0 64-bit                3504  26.0-20.0  (+6 -0 =40)  100.0    -4
 - Arasan 24.0 64-bit                      3496   2.5-1.5   (+1 -0 =3 )  100.0   +26
 - Velvet 6.0.0 64-bit                     3452  16.5-7.5   (+9 -0 =15)  100.0   +24
 - akimbo 0.8.0 64-bit                     3441  16.5-7.5   (+9 -0 =15)  100.0   +14
 - Lizard 10.0 64-bit                      3368  12.5-5.5   (+7 -0 =11)  100.0   -56


Created in 2005-2013 by CCRL team
Last games added on November 16, 2024