CCRL Blitz
Downloads and Statistics
May 15, 2021
Testing summary:
Total: 2'526'227 games
played by 3'011 programs

White wins: 970'445 (38.4%)
Black wins: 776'698 (30.7%)
Draws: 779'084 (30.8%)
White score: 53.8%

Engine Details

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Stockfish 13 64-bit (3631+15
−15
)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. On our 40/15 list, this includes a small number of games from the development version of 2021-02-16. We tested this version, which subsequently had no further functional changes to it and essentially became Stockfish 13.
This is one of the 72 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Fat Fritz 2 (in SF) 64-bit3638+14
−14
(+7)51.5 − 47.5
(+6−2=91)
52.0%
51.5 / 99
22.5%
+16
–   Dragon by Komodo 2 64-bit3590+19
−19
(−41)61 − 38
(+23−0=76)
61.6%
61.0 / 99
100.0%
+19
–   Dragon by Komodo 64-bit3584+14
−13
(−47)58 − 42
(+16−0=84)
58.0%
58.0 / 100
100.0%
−6
–   Houdini 6 64-bit3443+6
−7
(−188)89 − 21
(+70−2=38)
80.9%
89.0 / 110
100.0%
+25
–   Igel 3.0.5 64-bit3430+18
−18
(−201)45.5 − 24.5
(+21−0=49)
65.0%
45.5 / 70
100.0%
−120
–   Nemorino 6.05 64-bit3417+13
−13
(−214)78.5 − 20.5
(+58−0=41)
79.3%
78.5 / 99
100.0%
−22
–   SlowChess Blitz 2.5 64-bit3413+12
−12
(−218)81.5 − 18.5
(+63−0=37)
81.5%
81.5 / 100
100.0%
−5
–   Igel 3.0.0 64-bit3405+16
−16
(−226)72.5 − 18.5
(+54−0=37)
79.7%
72.5 / 91
100.0%
−31
–   Ethereal 12.75 64-bit3405+11
−11
(−226)75 − 25
(+50−0=50)
75.0%
75.0 / 100
100.0%
−73
–   RubiChess 2.0 NN-375bd 64-bit3382+15
−15
(−249)83.5 − 15.5
(+68−0=31)
84.3%
83.5 / 99
100.0%
−2
–   Igel 2.9.0 64-bit3360+13
−13
(−271)83.5 − 15.5
(+68−0=31)
84.3%
83.5 / 99
100.0%
−24
–   Pedone 3.0 64-bit3342+13
−13
(−289)87.5 − 12.5
(+75−0=25)
87.5%
87.5 / 100
100.0%
0
–   Xiphos 0.6 64-bit3341+9
−9
(−290)83 − 17
(+66−0=34)
83.0%
83.0 / 100
100.0%
−58
–   RofChade 2.3 64-bit3309+11
−11
(−322)94 − 6
(+88−0=12)
94.0%
94.0 / 100
100.0%
+97
–   Booot 6.4 64-bit3295+11
−11
(−336)94.5 − 5.5
(+89−0=11)
94.5%
94.5 / 100
100.0%
+98
–   Defenchess 2.3 64-bit3285+13
−13
(−346)94 − 6
(+88−0=12)
94.0%
94.0 / 100
100.0%
+73
–   Schooner 2.2 64-bit3274+10
−10
(−357)92.5 − 6.5
(+86−0=13)
93.4%
92.5 / 99
100.0%
+47
–   Laser 1.7 64-bit3273+8
−8
(−358)95.5 − 3.5
(+92−0=7)
96.5%
95.5 / 99
100.0%
+151
–   Shredder 13 64-bit3270+7
−6
(−361)94.5 − 5.5
(+89−0=11)
94.5%
94.5 / 100
100.0%
+73

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Created in 2005-2013 by CCRL team
Last games added on May 15, 2021