CCRL 40/40
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 1'090'583 games
played by 2'551 programs
149018 CPU days (X2 4600+)

White wins: 378'348 (34.7%)
Black wins: 281'291 (25.8%)
Draws: 430'944 (39.5%)
White score: 54.4%

Engine Details

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Zevra 2.1.2 r248 64-bit#239‑240  (2396+30
−30		)Quote
Author: Oleg Smirnov (Russia) Links: github, SDChess
This is one of the 6 Zevra versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Delocto 0.6 64-bit2576+15
−15		(+180)2.5 − 7.5
(+1−6=3)		25.0%
2.5 / 10
0.0%
+5
= = = 0 0 0 0 0 1 0
–   Ghost 3.1 64-bit2550+16
−16		(+154)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.0%
+121
1 1 = = 0 = 0 0 0 1
–   WyldChess 1.1 64-bit2501+28
−28		(+105)4 − 6
(+1−3=6)		40.0%
4.0 / 10
0.0%
+50
= = 1 = = 0 0 0 = =
–   Arasan 10.32496+23
−24		(+100)5 − 5
(+4−4=2)		50.0%
5.0 / 10
0.0%
+100
= = 0 1 1 1 0 0 0 1
–   Bagatur 1.5g 64-bit2493+26
−26		(+97)1 − 9
(+0−8=2)		10.0%
1.0 / 10
0.0%
−228
0 0 = 0 0 = 0 0 0 0
–   Zurichess Geneva 64-bit2483+26
−26		(+87)3 − 7
(+2−6=2)		30.0%
3.0 / 10
0.0%
−62
0 0 = 1 0 = 0 0 1 0
–   Shield 1.2 64-bit2473+26
−26		(+77)3.5 − 6.5
(+2−5=3)		35.0%
3.5 / 10
0.0%
−23
0 1 1 0 = 0 0 = 0 =
–   Donna 3.0 64-bit2461+32
−32		(+65)4 − 6
(+3−5=2)		40.0%
4.0 / 10
0.2%
−9
0 1 = 0 0 1 1 = 0 0
–   Giraffe 20150908 64-bit2460+19
−19		(+64)6 − 4
(+5−3=2)		60.0%
6.0 / 10
0.0%
+131
= 1 1 0 1 0 1 0 = 1
–   Bumblebee 1.0 64-bit2459+23
−23		(+63)4 − 6
(+3−5=2)		40.0%
4.0 / 10
0.1%
−11
0 1 = = 1 0 0 0 0 1
–   Axolotl 1.8 64-bit2446+19
−19		(+50)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.3%
+22
1 = 0 0 0 = 1 1 0 =
–   Mephisto Gideon Professional2446+26
−26		(+50)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.7%
+18
= 0 1 = 0 1 0 0 1 =
–   Nemeton 1.62439+24
−24		(+43)4 − 6
(+4−6=0)		40.0%
4.0 / 10
1.4%
−43
0 0 0 1 1 0 1 0 1 0
–   Bearded N44.5 64-bit2438+21
−21		(+42)3.5 − 6.5
(+2−5=3)		35.0%
3.5 / 10
1.2%
−62
= = = 0 1 1 0 0 0 0
–   Snitch 1.6.2 64-bit2436+22
−22		(+40)5 − 5
(+4−4=2)		50.0%
5.0 / 10
1.8%
+45
0 = 1 0 1 1 0 = 1 0
–   Bitfoot 1.0.d9aeb43 64-bit2415+27
−27		(+19)3 − 7
(+1−5=4)		30.0%
3.0 / 10
17.9%
−107
1 0 0 0 = 0 = = 0 =
–   Gaia 3.5 64-bit2412+22
−22		(+16)5.5 − 4.5
(+5−4=1)		55.0%
5.5 / 10
20.7%
+57
1 0 1 1 0 0 1 = 1 0
–   KnightDreamer 3.32405+30
−30		(+9)6 − 4
(+4−2=4)		60.0%
6.0 / 10
34.1%
+68
= 1 = 1 0 = = 0 1 1
–   Patzer 3.802402+20
−20		(+6)5.5 − 4.5
(+5−4=1)		55.0%
5.5 / 10
38.5%
+42
1 0 1 0 = 0 1 0 1 1
–   Amateur 2.822391+20
−20		(−5)3 − 7
(+3−7=0)		30.0%
3.0 / 10
62.1%
−190
0 1 0 1 0 1 0 0 0 0
–   FrankWalter 2.2.3 64-bit2391+34
−33		(−5)5 − 5
(+4−4=2)		50.0%
5.0 / 10
60.2%
−5
= 0 1 0 0 1 1 = 1 0
–   Jazz 721 64-bit2385+20
−20		(−11)7 − 3
(+6−2=2)		70.0%
7.0 / 10
73.8%
+138
1 = 0 0 = 1 1 1 1 1
–   Tytan 9.32 64-bit2368+23
−23		(−28)7.5 − 2.5
(+6−1=3)		75.0%
7.5 / 10
93.2%
+148
1 1 1 1 1 1 = = 0 =
–   Topple 0.1.1 64-bit2365+24
−24		(−31)5 − 5
(+4−4=2)		50.0%
5.0 / 10
94.9%
−31
1 1 0 1 0 = = 0 1 0
–   Plisk 0.2.7d 64-bit2361+19
−19		(−35)5.5 − 4.5
(+4−3=3)		55.0%
5.5 / 10
97.7%
−3
1 = 0 0 = 1 = 0 1 1
–   Isa 2.0.64 64-bit2360+17
−16		(−36)4.5 − 5.5
(+4−5=1)		45.0%
4.5 / 10
98.3%
−78
1 1 1 0 = 0 0 1 0 0
–   pikoSzachy Extreme 22355+34
−34		(−41)6.5 − 3.5
(+6−3=1)		65.0%
6.5 / 10
96.6%
+75
1 0 = 0 1 0 1 1 1 1
–   K2 0.672354+23
−23		(−42)3.5 − 6.5
(+2−5=3)		35.0%
3.5 / 10
98.7%
−141
1 0 0 = = 0 0 = 1 0
–   KnightX 1.94 64-bit2350+22
−22		(−46)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
99.3%
+54
= 1 0 = = 1 1 0 1 1
–   Gibbon 2.60a 64-bit2338+21
−21		(−58)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
99.9%
+41
1 = 1 1 = 0 1 1 = 0
–   Butcher 1.61 64-bit2334+30
−30		(−62)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
99.8%
+46
1 = 1 = 1 = 0 0 1 1
–   EveAnn 1.712332+30
−30		(−64)3 − 7
(+1−5=4)		30.0%
3.0 / 10
99.9%
−192
0 0 = = 0 = = 1 0 0
–   Googleplex Starthinker 1.4 64-bit2320+17
−17		(−76)6 − 4
(+3−1=6)		60.0%
6.0 / 10
100.0%
−20
= 1 0 = = = = 1 1 =
–   Zeus 1.272320+27
−27		(−76)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
100.0%
−103
= 0 1 0 0 = 1 = = =
–   RubiChess 0.7 64-bit2303+25
−25		(−93)6 − 4
(+5−3=2)		60.0%
6.0 / 10
100.0%
−19
1 0 1 1 1 = = 0 0 1
–   Ant 2006-F2303+20
−20		(−93)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
+13
= 1 0 = 1 = 0 1 1 1
–   Matilde 2008 64-bit2290+23
−23		(−106)6 − 4
(+4−2=4)		60.0%
6.0 / 10
100.0%
−42
= 0 1 = = 1 1 1 0 =
–   Chaturanga 2.4.32289+19
−19		(−107)8 − 2
(+7−1=2)		80.0%
8.0 / 10
100.0%
+119
= 1 1 1 1 1 1 1 = 0
–   Ayito 0.2.9942265+21
−21		(−131)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
−30
0 1 = 1 = 0 1 = 1 1
–   RamJet 0.132228+20
−20		(−168)9 − 1
(+8−0=2)		90.0%
9.0 / 10
100.0%
+156
1 1 1 1 = 1 1 1 = 1
400 games: 149 wins, 146 losses, 105 draws (26.3%), score: 50.4%

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Created in 2005-2013 by CCRL team
Last games added on October 12, 2019