CCRL Blitz
Downloads and Statistics
May 9, 2021
Testing summary:
Total: 2'520'531 games
played by 3'005 programs

White wins: 968'591 (38.4%)
Black wins: 775'557 (30.8%)
Draws: 776'383 (30.8%)
White score: 53.8%

Engine Details

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Butterfly 0.5 64-bit in CCRL Blitz, 2021-05-09
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:
Butterfly 0.5 64-bit has no rank with rating of 1613 Elo points (+26 -26),
based on 533 games: 180 wins, 142 losses and 211 draws
Score: 53.6%, Average opponent: −8.6, Draws: 39.6%


Pairwise results:
     Opponent                              Elo     Score                  LOS   Perf
 - Fortress 1.62                           2136   0.5-24.5  (+0 -24=1 )    0.0   -76
 - IACH 0.56z                              1916   5.0-20.0  (+0 -15=10)    0.0  +106
 - Macromix 2.01                           1799  11.0-20.0  (+7 -16=8 )    0.0   +82
 - Laurifer 1.0                            1771  12.5-12.5  (+7 -7 =11)    0.0  +158
 - Adamant 1.7                             1732   9.0-13.0  (+6 -10=6 )    0.0   +50
 - RumbleMinze 1.0.33                      1706  10.0-15.0  (+5 -10=10)    0.0   +28
 - Pooky 2.7                               1653  11.0-11.0  (+7 -7 =8 )    0.3   +40
 - Vapor 0.01r12                           1638   9.5-11.5  (+3 -5 =13)    4.0    -1
 - Kitteneitor 0.12.1                      1603   9.0-13.0  (+4 -8 =10)   68.1   -68
 - Zotron 4.4.6                            1592  11.0-12.0  (+5 -6 =12)   93.4   -39
 - Damas 9                                 1583  13.5-6.5   (+10-3 =7 )   97.9   +77
 - Needle 0.531                            1579  10.5-12.5  (+4 -6 =13)   99.2   -55
 - Vajolet 0.4.1                           1512  15.0-8.0   (+11-4 =8 )  100.0     0
 - Exacto 0.d                              1506  16.5-8.5   (+11-3 =11)  100.0   -10
 - Piranha 0.5                             1498  18.0-6.0   (+15-3 =6 )  100.0   +63
 - Tarrasch Toy Engine 0.906               1491  12.5-9.5   (+8 -5 =9 )  100.0   -82
 - APILChess 1.05r1b                       1481  14.0-9.0   (+5 -0 =18)  100.0   -84
 - Roque 1.1                               1466  18.0-5.0   (+14-1 =8 )  100.0   +39
 - Blikskottel 0.8                         1458  15.0-4.0   (+12-1 =6 )  100.0   +52
 - Nero 6.1                                1446  15.0-7.0   (+10-2 =10)  100.0   -56
 - Eden 0.0.13                             1403  17.0-6.0   (+12-1 =10)  100.0   -57
 - Numpty Omega                            1379  15.0-7.0   (+10-2 =10)  100.0  -125
 - Virutor Chess 1.1                       1362  17.0-6.0   (+14-3 =6 )  100.0   -81


Created in 2005-2013 by CCRL team
Last games added on May 9, 2021