CCRL Blitz
Downloads and Statistics
January 16, 2021
Testing summary:
Total: 2'442'136 games
played by 2'904 programs

White wins: 939'660 (38.5%)
Black wins: 754'242 (30.9%)
Draws: 748'234 (30.6%)
White score: 53.8%

Engine Details

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Butter 1.0 64-bit in CCRL Blitz, 2021-01-16
Ponder off, General book up to 12 moves, up to 6 piece EGTB
Time control: From Jan 2020, equivalent to 2'+1" on an Intel i7-4770K. See the "about" page.
Tested by CCRL team, 2005-2021, http://ccrl.chessdom.com/ccrl/404/

CCRL Blitz main list:
Butter 1.0 64-bit is #492 with rating of 1855 Elo points (+17 -17),
based on 1333 games: 592 wins, 545 losses and 196 draws
Score: 51.8%, Average opponent: −13.8, Draws: 14.7%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - Axolotl 1.5 64-bit                      2138   0.5-7.5   (+0 -7 =1 )    0.0  -126
 - Brainless 20081212 64-bit               2134   0.0-5.0   (+0 -5 =0 )    0.0  -INF
 - Schola 1.1.0 64-bit                     2010  10.0-22.0  (+7 -19=6 )    0.0   +13
 - Oberon 0.04                             2010   6.5-20.5  (+5 -19=3 )    0.0   -63
 - Bubble 1.5                              1987   7.0-22.0  (+5 -20=4 )    0.0   -76
 - Goldfish 1.13.0 64-bit                  1984  11.5-20.5  (+7 -16=9 )    0.0   +30
 - Stash 12.0 64-bit                       1975   8.0-20.0  (+8 -20=0 )    0.0   -73
 - Jacksprat 1.0 64-bit                    1958   8.5-23.5  (+7 -22=3 )    0.0   -92
 - Sapeli 1.64 64-bit                      1939  10.0-22.0  (+8 -20=4 )    0.0   -64
 - BeLL 0.0.41 64-bit                      1935  18.0-14.0  (+13-9 =10)    0.0  +123
 - Fairy-Max 5.0b3                         1917  21.0-19.0  (+18-16=6 )    0.0   +82
 - Tony's Chess 0.03                       1908  17.0-15.0  (+15-13=4 )    0.0   +75
 - Skiull 0.5 64-bit                       1904  14.5-17.5  (+11-14=7 )    0.0   +12
 - Tyrell 1.02                             1893   9.5-16.5  (+9 -16=1 )    0.2   -80
 - Fairy-Max 5.0b                          1892  19.0-21.0  (+15-17=8 )    0.4   +18
 - MrChess 2.1                             1886  18.5-29.5  (+15-26=7 )    0.6   -59
 - Presbyter 1.3.0 64-bit                  1880  28.0-27.0  (+24-23=8 )    3.6   +32
 - Purple Haze 2.1.0                       1880  13.5-12.5  (+11-10=5 )    1.0   +32
 - Tinman 0.3.0 64-bit                     1867  15.0-17.0  (+12-14=6 )   18.5   -11
 - Deepov 0.4.1 64-bit                     1852  16.5-10.5  (+14-8 =5 )   63.2   +78
 - Sayuri 2018.03.06 64-bit                1838  16.5-15.5  (+14-13=5 )   90.6    -7
 - Halogen 2.7.3 64-bit                    1834  13.0-18.0  (+11-16=4 )   94.6   -82
 - HeavyChess 0.13 beta                    1831  13.5-8.5   (+10-5 =7 )   97.4   +47
 - Skiull 0.3 64-bit                       1831  11.5-9.5   (+8 -6 =7 )   97.2    +9
 - Sayuri 2018.05.23 64-bit                1814  15.5-16.5  (+14-15=3 )  100.0   -52
 - Ziggurat 0.18 64-bit                    1810  10.0-12.0  (+8 -10=4 )  100.0   -81
 - NoonianChess 3.2.06P2                   1805  15.0-17.0  (+14-16=2 )  100.0   -77
 - Chenard 2015.08.14 64-bit               1800  14.0-11.0  (+13-10=2 )   99.9    -2
 - Pigeon 1.5.1 64-bit                     1799  12.5-8.5   (+11-7 =3 )  100.0   +14
 - Chareth 2020-06-28 64-bit               1798  19.5-12.5  (+17-10=5 )  100.0   +29
 - Enigma 1.1.4                            1790  20.0-8.0   (+19-7 =2 )  100.0  +116
 - AdaChess 3.1 64-bit                     1789  15.5-16.5  (+14-15=3 )  100.0   -77
 - Embracer 1.12                           1785   9.5-13.5  (+7 -11=5 )  100.0  -139
 - MOBMAT 0.903d 64-bit                    1784  15.5-13.5  (+15-13=1 )  100.0   -41
 - FAUCE 0.41c                             1781  15.0-6.0   (+14-5 =2 )  100.0   +98
 - Bremboce 0.6.2                          1780  17.5-10.5  (+16-9 =3 )  100.0   +25
 - Sapeli 1.0 64-bit                       1778  16.5-15.5  (+14-13=5 )  100.0   -62
 - Lodocase 240208                         1754  17.0-12.0  (+14-9 =6 )  100.0   -34
 - Sayuri 2017.16.12 64-bit                1749  18.5-8.5   (+16-6 =5 )  100.0   +32
 - Zzzzzz 3.51                             1731  17.5-6.5   (+16-5 =3 )  100.0   +57
 - AdaChess 3.4 64-bit                     1726  21.0-10.0  (+20-9 =2 )  100.0   +21
 - Tristram 4.16                           1724  22.5-7.5   (+21-6 =3 )  100.0   +79
 - Ceibo 0.3.65 64-bit                     1721  23.0-5.0   (+19-1 =8 )  100.0   +94
 - Tom Thumb 0.2 64-bit                    1673  33.0-7.0   (+30-4 =6 )  100.0   +84
 - Tom Thumb 0.1 64-bit                    1614  34.5-11.5  (+33-10=3 )  100.0   -26


Created in 2005-2013 by CCRL team
Last games added on January 16, 2021