CCRL 40/15
Downloads and Statistics
March 28, 2020
Testing summary:
Total: 1'132'680 games
played by 2'634 programs

White wins: 391'782 (34.6%)
Black wins: 290'390 (25.6%)
Draws: 450'508 (39.8%)
White score: 54.5%

Engine Details

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Zevra 2.1.2 r248 64-bit#241‑243  (2400+25
−25
)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-bit2579+15
−15
(+179)2.5 − 7.5
(+1−6=3)
25.0%
2.5 / 10
0.0%
+4
0 0 0 0 1 0 = 0 = =
–   Ghost 3.1 64-bit2548+15
−16
(+148)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
0.0%
+115
0 = 0 0 0 1 = = 1 1
–   Axolotl 1.9 64-bit2514+26
−26
(+114)6 − 4
(+4−2=4)
60.0%
6.0 / 10
0.0%
+172
1 1 0 = 1 = = 1 0 =
–   WyldChess 1.1 64-bit2501+28
−28
(+101)4 − 6
(+1−3=6)
40.0%
4.0 / 10
0.0%
+45
0 0 = = 1 = = 0 = =
–   Arasan 10.32496+23
−24
(+96)5 − 5
(+4−4=2)
50.0%
5.0 / 10
0.0%
+96
1 1 0 0 0 1 0 1 = =
–   Bagatur 1.5g 64-bit2494+25
−26
(+94)1 − 9
(+0−8=2)
10.0%
1.0 / 10
0.0%
−232
0 = 0 0 0 0 = 0 0 0
–   Zurichess Geneva 64-bit2484+26
−26
(+84)3 − 7
(+2−6=2)
30.0%
3.0 / 10
0.0%
−65
0 0 1 0 = 1 0 = 0 0
–   Drosophila 1.5.1 64-bit2478+15
−15
(+78)2 − 2
(+1−1=2)
50.0%
2.0 / 4
0.0%
+78
= = 1 0
–   Shield 1.2 64-bit2474+26
−26
(+74)3.5 − 6.5
(+2−5=3)
35.0%
3.5 / 10
0.0%
−26
0 = 0 = 1 0 = 0 0 1
–   Giraffe 20150908 64-bit2461+19
−19
(+61)6 − 4
(+5−3=2)
60.0%
6.0 / 10
0.0%
+128
1 0 1 0 = 1 1 0 = 1
–   Bumblebee 1.0 64-bit2461+23
−23
(+61)4 − 6
(+3−5=2)
40.0%
4.0 / 10
0.0%
−13
1 0 0 0 0 1 = = 0 1
–   Donna 3.0 64-bit2461+32
−32
(+61)4 − 6
(+3−5=2)
40.0%
4.0 / 10
0.1%
−13
0 1 1 = 0 0 = 0 0 1
–   Axolotl 1.8 64-bit2446+19
−19
(+46)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
0.2%
+18
0 = 1 1 0 = 0 0 1 =
–   Mephisto Gideon Professional2444+25
−25
(+44)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
0.6%
+12
0 0 1 = 1 = 0 1 = 0
–   Teki 2 64-bit2440+16
−16
(+40)4 − 4
(+3−3=2)
50.0%
4.0 / 8
0.3%
+33
1 = 0 0 = 1 0 1
–   Nemeton 1.62439+24
−24
(+39)4 − 6
(+4−6=0)
40.0%
4.0 / 10
1.1%
−48
1 0 1 0 0 1 1 0 0 0
–   Tunguska 1.1 64-bit2437+21
−21
(+37)3 − 5
(+2−4=2)
37.5%
3.0 / 8
1.1%
−51
0 = = 0 1 0 0 1
–   Bearded N44.5 64-bit2437+20
−20
(+37)3.5 − 6.5
(+2−5=3)
35.0%
3.5 / 10
1.0%
−67
1 1 0 0 0 0 = 0 = =
–   Snitch 1.6.2 64-bit2433+21
−21
(+33)5 − 5
(+4−4=2)
50.0%
5.0 / 10
2.2%
+38
0 = 1 0 1 0 1 1 0 =
–   Bitfoot 1.0.d9aeb43 64-bit2415+26
−26
(+15)3 − 7
(+1−5=4)
30.0%
3.0 / 10
20.1%
−111
= 0 = = 0 = 0 0 1 0
–   Gaia 3.5 64-bit2414+22
−22
(+14)5.5 − 4.5
(+5−4=1)
55.0%
5.5 / 10
20.3%
+56
0 0 1 = 1 0 1 1 1 0
–   Patzer 3.802401+19
−19
(+1)5.5 − 4.5
(+5−4=1)
55.0%
5.5 / 10
47.8%
+37
1 0 1 1 1 0 = 0 1 0
–   KnightDreamer 3.32400+28
−28
(0)6 − 4
(+4−2=4)
60.0%
6.0 / 10
48.9%
+59
= 0 1 1 = 1 0 = = 1
–   Myrddin 0.87 64-bit2395+14
−14
(−5)14 − 10
(+11−7=6)
58.3%
14.0 / 24
62.0%
+53
= 1 1 1 0 = 0 1 = 0 0 = 0 1 1 1 1 0 1 = = 0 1 1
–   Popochin 4.1 64-bit2394+16
−16
(−6)6.5 − 3.5
(+6−3=1)
65.0%
6.5 / 10
65.1%
+112
1 1 1 1 = 0 0 0 1 1
–   Ares GB 64-bit2392+14
−14
(−8)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
70.7%
+34
1 1 0 0 = = = 1
–   Amateur 2.822392+20
−20
(−8)3 − 7
(+3−7=0)
30.0%
3.0 / 10
67.2%
−193
0 0 0 0 0 1 0 1 0 1
–   FrankWalter 2.2.3 64-bit2391+32
−32
(−9)5 − 5
(+4−4=2)
50.0%
5.0 / 10
66.4%
−9
0 1 1 = 1 0 1 0 = 0
–   Jazz 721 64-bit2385+20
−20
(−15)7 − 3
(+6−2=2)
70.0%
7.0 / 10
82.0%
+134
1 1 1 1 0 0 = 1 1 =
–   Googleplex Starthinker 1.6 64-bit2384+22
−22
(−16)11.5 − 14.5
(+7−10=9)
44.2%
11.5 / 26
83.5%
−53
= 0 1 1 0 1 0 = 0 1 0 0 = 0 0 = 1 = 0 = = 1 = 1 = 0
–   Waxman 20172371+16
−16
(−29)1.5 − 2.5
(+1−2=1)
37.5%
1.5 / 4
97.1%
−124
1 = 0 0
–   Tytan 9.32 64-bit2369+23
−23
(−31)7.5 − 2.5
(+6−1=3)
75.0%
7.5 / 10
96.3%
+145
= = 0 = 1 1 1 1 1 1
–   Isa 2.0.83 64-bit2367+38
−38
(−33)2 − 6
(+0−4=4)
25.0%
2.0 / 8
92.3%
−182
= = = = 0 0 0 0
–   Topple 0.1.1 64-bit2364+23
−23
(−36)5 − 5
(+4−4=2)
50.0%
5.0 / 10
97.9%
−36
= 0 1 0 0 1 0 = 1 1
–   Isa 2.0.64 64-bit2363+16
−16
(−37)4.5 − 5.5
(+4−5=1)
45.0%
4.5 / 10
99.2%
−79
0 1 0 0 1 0 = 0 1 1
–   CeeChess 1.3.2 64-bit2362+111
−105
(−38)2 − 0
(+2−0=0)
100.0%
2.0 / 2
75.0%
+INF
1 1
–   Plisk 0.2.7d 64-bit2361+19
−19
(−39)5.5 − 4.5
(+4−3=3)
55.0%
5.5 / 10
99.2%
−7
= 0 1 1 0 0 = 1 1 =
–   Raven 0.80 64-bit2357+32
−32
(−43)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
98.1%
+99
= 1
–   pikoSzachy Extreme 22356+34
−34
(−44)6.5 − 3.5
(+6−3=1)
65.0%
6.5 / 10
98.0%
+72
1 1 1 1 = 0 1 0 1 0
–   K2 0.672355+23
−23
(−45)3.5 − 6.5
(+2−5=3)
35.0%
3.5 / 10
99.5%
−144
0 = 1 0 0 = = 0 1 0
–   KnightX 1.94 64-bit2352+22
−22
(−48)6.5 − 3.5
(+5−2=3)
65.0%
6.5 / 10
99.7%
+52
1 0 1 1 0 = = 1 = 1
–   Isa 2.1 64-bit2349+31
−31
(−51)5 − 3
(+4−2=2)
62.5%
5.0 / 8
99.5%
+36
0 = 1 0 1 = 1 1
–   EveAnn 1.712337+29
−29
(−63)3 − 7
(+1−5=4)
30.0%
3.0 / 10
99.9%
−191
0 = = 1 0 0 = = 0 0
–   Gibbon 2.60a 64-bit2336+21
−21
(−64)6.5 − 3.5
(+5−2=3)
65.0%
6.5 / 10
100.0%
+35
= 0 1 1 = 0 1 1 1 =
–   Butcher 1.61 64-bit2335+30
−30
(−65)6.5 − 3.5
(+5−2=3)
65.0%
6.5 / 10
99.9%
+43
1 = 0 0 1 1 1 = 1 =
–   Barbarossa 0.6.0 64-bit2334+41
−41
(−66)6.5 − 3.5
(+6−3=1)
65.0%
6.5 / 10
99.7%
+53
1 0 1 1 1 0 1 1 = 0
–   Zeus 1.272324+26
−26
(−76)4.5 − 5.5
(+2−3=5)
45.0%
4.5 / 10
100.0%
−103
1 = = = 1 0 0 = = 0
–   Googleplex Starthinker 1.4 64-bit2321+17
−17
(−79)6 − 4
(+3−1=6)
60.0%
6.0 / 10
100.0%
−23
= = = 1 1 = 0 = = 1
–   RubiChess 0.7 64-bit2306+24
−24
(−94)6 − 4
(+5−3=2)
60.0%
6.0 / 10
100.0%
−20
= 0 0 1 1 1 1 = 1 0
–   Ant 2006-F2304+19
−20
(−96)6.5 − 3.5
(+5−2=3)
65.0%
6.5 / 10
100.0%
+10
0 1 1 1 1 = = 1 0 =
–   CT800 1.34 64-bit2297+20
−20
(−103)4.5 − 1.5
(+4−1=1)
75.0%
4.5 / 6
100.0%
+97
0 = 1 1 1 1
–   Invictus r228 64-bit2292+18
−18
(−108)2.5 − 1.5
(+2−1=1)
62.5%
2.5 / 4
100.0%
−15
= 1 0 1
–   Chaturanga 2.4.32291+19
−19
(−109)8 − 2
(+7−1=2)
80.0%
8.0 / 10
100.0%
+118
1 1 1 1 = 0 1 1 = 1
–   Matilde 2008 64-bit2288+22
−22
(−112)6 − 4
(+4−2=4)
60.0%
6.0 / 10
100.0%
−48
1 1 0 = 1 = = 1 = 0
–   Raven 0.70 64-bit2283+29
−29
(−117)1 − 3
(+0−2=2)
25.0%
1.0 / 4
100.0%
−273
= 0 = 0
–   NoC 20.1 64-bit2270+77
−77
(−130)1 − 1
(+1−1=0)
50.0%
1.0 / 2
99.9%
−130
1 0
–   Ayito 0.2.9942266+20
−20
(−134)6.5 − 3.5
(+5−2=3)
65.0%
6.5 / 10
100.0%
−33
= 0 1 = 1 1 = 1 0 1
–   Hedgehog 1.99 64-bit2249+35
−35
(−151)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−151
0 1
–   Absolute Zero 3.3.2.0 64-bit2249+105
−107
(−151)2 − 0
(+2−0=0)
100.0%
2.0 / 2
99.7%
+INF
1 1
–   SpaceDog 0.97.7 64-bit2240+25
−25
(−160)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−3
1 =
–   RamJet 0.132232+20
−20
(−168)9 − 1
(+8−0=2)
90.0%
9.0 / 10
100.0%
+156
1 1 = 1 1 1 = 1 1 1
–   Robocide 0.4 64-bit2212+41
−41
(−188)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Achillees 1.0 64-bit2208+30
−30
(−192)4 − 2
(+4−2=0)
66.7%
4.0 / 6
100.0%
−38
0 1 0 1 1 1
–   MORA 1.1.02198+30
−30
(−202)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−202
= =
–   Micah 1.0 64-bit2170+27
−27
(−230)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−230
= =
–   Little Wing 0.6.0 64-bit2077+33
−33
(−323)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1

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Created in 2005-2013 by CCRL team
Last games added on March 28, 2020