CCRL 40/15
Downloads and Statistics
February 28, 2021
Testing summary:
Total: 1'220'774 games
played by 2'799 programs

White wins: 419'368 (34.4%)
Black wins: 308'512 (25.3%)
Draws: 492'894 (40.4%)
White score: 54.5%

Engine Details

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Show each game results
Zevra 2.1.1 r216 64-bit (2381+17
−17		)Quote
Author: Oleg Smirnov (Russia) Links: github, SDChess
This is one of the 6 Zevra versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Coiled 0.6 64-bit2585+12
−12		(+204)2 − 2
(+1−1=2)		50.0%
2.0 / 4
0.0%
+204
= = 0 1
–   Delocto 0.6 64-bit2580+15
−15		(+199)0 − 4
(+0−4=0)		0.0%
0.0 / 4
0.0%
−INF
0 0 0 0
–   Dorky 4.8 64-bit2558+14
−14		(+177)3 − 7
(+2−6=2)		30.0%
3.0 / 10
0.0%
+24
0 0 1 0 = = 0 0 0 1
–   Detroid 1.0.1 64-bit2556+18
−18		(+175)0.5 − 3.5
(+0−3=1)		12.5%
0.5 / 4
0.0%
−108
0 0 = 0
–   FrankWalter 2.4.0 64-bit2541+16
−16		(+160)1 − 3
(+0−2=2)		25.0%
1.0 / 4
0.0%
+9
0 0 = =
–   AnMon 5.662530+21
−21		(+149)3 − 3
(+2−2=2)		50.0%
3.0 / 6
0.0%
+149
= = 1 1 0 0
–   Orion 0.5 64-bit2528+14
−14		(+147)1.5 − 4.5
(+0−3=3)		25.0%
1.5 / 6
0.0%
0
0 = = = 0 0
–   Bagatur 1.5f 64-bit2527+18
−18		(+146)11.5 − 26.5
(+7−22=9)
30.3%
11.5 / 38
0.0%
+5
0 = 1 = 0 1 = = = 0 0 0 1 0 1 0 0 1 = 0 0 0 0 0 0 0 0 0 0 = = 1 0 0 0 0 1 =
–   Bagatur 1.6c 64-bit2525+22
−22		(+144)8.5 − 23.5
(+3−18=11)
26.6%
8.5 / 32
0.0%
−13
0 = 0 0 = 0 = 0 1 0 0 = 0 0 = = 1 = 0 = = 0 0 0 = 0 = 1 0 0 0 0
–   Bagatur 1.5g 64-bit2502+24
−24		(+121)13 − 27
(+7−21=12)
32.5%
13.0 / 40
0.0%
+3
= 1 0 0 = 0 0 1 = 0 0 1 0 = 0 0 0 = 0 = = 0 = 0 = = 0 0 0 0 = 1 1 1 = 0 0 0 0 1
–   Trace 1.362486+20
−20		(+105)2 − 4
(+1−3=2)		33.3%
2.0 / 6
0.0%
−13
= 1 0 0 = 0
–   Drosophila 1.5.1 64-bit2479+15
−15		(+98)0 − 4
(+0−4=0)		0.0%
0.0 / 4
0.0%
−INF
0 0 0 0
–   Lozza 1.18 64-bit2472+15
−15		(+91)1.5 − 10.5
(+1−10=1)		12.5%
1.5 / 12
0.0%
−253
0 0 0 0 0 = 1 0 0 0 0 0
–   WyldChess 1.2 64-bit2470+26
−26		(+89)5 − 1
(+4−0=2)		83.3%
5.0 / 6
0.0%
+316
= 1 1 1 = 1
–   Nemeton 1.812465+19
−19		(+84)2.5 − 13.5
(+1−12=3)		15.6%
2.5 / 16
0.0%
−192
= 0 1 0 0 0 0 = 0 0 0 = 0 0 0 0
–   Nemeton 1.82460+17
−17		(+79)13 − 27
(+10−24=6)
32.5%
13.0 / 40
0.0%
−57
0 0 1 0 = 1 0 1 0 = = 0 0 0 0 1 0 1 0 0 1 = = 0 0 0 0 0 0 1 0 1 0 0 1 = 0 0 0 1
–   FrankWalter 2.2.8 64-bit2459+20
−20		(+78)9.5 − 36.5
(+5−32=9)
20.7%
9.5 / 46
0.0%
−147
0 0 0 0 0 1 0 0 0 0 0 = 0 0 = 0 = 0 0 0 = 1 0 0 = 0 1 0 0 0 0 1 0 = = 0 0 1 0 0 = = 0 0 0 0
–   Topple 0.2.1 64-bit2459+18
−18		(+78)2 − 6
(+0−4=4)		25.0%
2.0 / 8
0.0%
−72
0 0 = 0 = = 0 =
–   Bumblebee 1.0.36898e1 64-bit2448+19
−19		(+67)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
0.0%
+39
1 0 = 0 1 = = 0 = =
–   FrankWalter 2.3.3 64-bit2448+20
−20		(+67)20.5 − 19.5
(+16−15=9)
51.3%
20.5 / 40
0.0%
+75
1 0 = = 0 0 1 1 0 1 0 = 0 = 1 1 = 1 1 = = 0 1 1 0 0 1 = 0 1 0 0 1 0 1 0 = 1 0 1
–   Axolotl 1.8 64-bit2446+19
−19		(+65)2 − 4
(+0−2=4)		33.3%
2.0 / 6
0.0%
−24
0 = = 0 = =
–   Mephisto Gideon Professional2444+23
−23		(+63)1.5 − 6.5
(+0−5=3)		18.8%
1.5 / 8
0.0%
−143
0 0 0 = 0 = = 0
–   Arasan 10.12443+27
−27		(+62)4.5 − 1.5
(+3−0=3)		75.0%
4.5 / 6
0.0%
+209
1 1 = 1 = =
–   Eeyore 1.52 64-bit2442+17
−17		(+61)2.5 − 3.5
(+1−2=3)		41.7%
2.5 / 6
0.0%
+7
0 = = 1 = 0
–   Bearded N44.5 64-bit2441+20
−20		(+60)5.5 − 6.5
(+4−5=3)		45.8%
5.5 / 12
0.0%
+32
1 = 1 0 0 0 1 = 0 1 = 0
–   Nemeton 1.62440+24
−24		(+59)3.5 − 2.5
(+3−2=1)		58.3%
3.5 / 6
0.0%
+128
0 1 0 1 1 =
–   Teki 2 64-bit2440+16
−16		(+59)0.5 − 1.5
(+0−1=1)		25.0%
0.5 / 2
0.0%
−83
0 =
–   Tunguska 1.1 64-bit2439+19
−19		(+58)8.5 − 11.5
(+6−9=5)		42.5%
8.5 / 20
0.0%
+1
1 1 0 = = = 0 1 0 = 0 = 1 0 0 0 1 0 1 0
–   Taltos rev118 64-bit2439+18
−18		(+58)1 − 1
(+1−1=0)		50.0%
1.0 / 2
0.0%
+58
0 1
–   King of Kings 2.562438+21
−21		(+57)2 − 0
(+2−0=0)		100.0%
2.0 / 2
0.0%
+INF
1 1
–   Snitch 1.6.2 64-bit2434+21
−21		(+53)3 − 5
(+1−3=4)		37.5%
3.0 / 8
0.0%
−20
= 0 1 = = = 0 0
–   GreKo 7.2 32-bit2429+33
−33		(+48)2.5 − 3.5
(+2−3=1)		41.7%
2.5 / 6
0.5%
−11
0 1 1 0 0 =
–   Cmcchess 2.6 64-bit2422+17
−17		(+41)4 − 6
(+2−4=4)		40.0%
4.0 / 10
0.0%
−21
0 1 0 0 = = 1 = = 0
–   PostModernist 10162418+18
−18		(+37)4.5 − 1.5
(+3−0=3)		75.0%
4.5 / 6
0.1%
+189
= = 1 = 1 1
–   Gaia 3.5 64-bit2416+21
−21		(+35)2.5 − 3.5
(+2−3=1)		41.7%
2.5 / 6
0.4%
−34
1 = 1 0 0 0
–   RomiChess P3n 64-bit2415+13
−13		(+34)5.5 − 14.5
(+3−12=5)		27.5%
5.5 / 20
0.1%
−129
0 0 0 = 1 0 = 0 = = 0 1 0 1 0 0 0 0 0 =
–   Ifrit m1.8 64-bit2413+18
−18		(+32)2 − 4
(+1−3=2)		33.3%
2.0 / 6
0.5%
−78
1 0 = 0 0 =
–   Diablo 0.5.12412+18
−18		(+31)1.5 − 4.5
(+0−3=3)		25.0%
1.5 / 6
0.7%
−126
= 0 = 0 = 0
–   Jonesy 1.0 64-bit2411+21
−21		(+30)2 − 2
(+1−1=2)		50.0%
2.0 / 4
1.4%
+40
= 0 1 =
–   Queen 4.032409+18
−18		(+28)3 − 3
(+2−2=2)		50.0%
3.0 / 6
1.1%
+28
1 0 = = 1 0
–   Dragon 4.62406+17
−17		(+25)3 − 3
(+3−3=0)		50.0%
3.0 / 6
2.2%
+25
1 0 0 0 1 1
–   KnightDreamer 3.32398+26
−26		(+17)7 − 3
(+6−2=2)		70.0%
7.0 / 10
14.3%
+169
= 1 1 1 1 = 0 1 0 1
–   Patzer 3.802397+19
−19		(+16)1 − 1
(+1−1=0)		50.0%
1.0 / 2
9.9%
+16
1 0
–   Myrddin 0.87 64-bit2397+13
−13		(+16)4 − 8
(+1−5=6)		33.3%
4.0 / 12
6.3%
−82
0 = 1 0 = 0 0 = = = = 0
–   Popochin 4.1 64-bit2397+16
−16		(+16)3.5 − 8.5
(+3−8=1)		29.2%
3.5 / 12
8.9%
−153
0 0 = 1 0 1 0 0 0 1 0 0
–   Amateur 2.822395+19
−19		(+14)4 − 2
(+3−1=2)		66.7%
4.0 / 6
13.0%
+124
1 = 1 1 = 0
–   Ares GB 64-bit2392+14
−14		(+11)22 − 30
(+15−23=14)
42.3%
22.0 / 52
14.6%
−42
= 1 = 1 0 0 = 0 1 0 0 0 0 1 0 1 = = 0 = 0 0 1 1 0 = 1 0 0 0 1 1 = 0 1 1 1 = 0 0 = = 1 0 0 = = 0 0 = 1 0
–   Galjoen 0.39 64-bit2388+16
−16		(+7)8 − 6
(+6−4=4)		57.1%
8.0 / 14
27.6%
+56
= 0 1 = 0 = 1 1 0 0 = 1 1 1
–   Comet B682385+19
−18		(+4)3.5 − 2.5
(+2−1=3)		58.3%
3.5 / 6
37.8%
+49
1 0 = = = 1
–   Thor's Hammer 2.28 32-bit2383+22
−22		(+2)5 − 3
(+4−2=2)		62.5%
5.0 / 8
42.1%
+91
1 1 = 0 1 = 0 1
–   Isa 2.0.83 64-bit2381+24
−24		(0)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
48.9%
−41
0 = 1 = 1 0 0 1 = 0
–   Waxman 20172371+16
−16		(−10)6 − 6
(+4−4=4)		50.0%
6.0 / 12
78.1%
−6
1 = 1 0 0 0 1 = 1 = 0 =
–   Jumbo 0.5.3 64-bit2371+27
−27		(−10)4 − 2
(+4−2=0)		66.7%
4.0 / 6
71.7%
+139
0 1 1 0 1 1
–   Amateur 2.862370+24
−25		(−11)16 − 16
(+13−13=6)
50.0%
16.0 / 32
76.4%
−9
= = 0 0 1 1 0 1 1 1 = 0 = 1 = 1 0 = 0 0 1 1 1 0 1 1 0 1 0 0 0 0
–   Isa 2.0.64 64-bit2364+16
−16		(−17)6.5 − 5.5
(+6−5=1)		54.2%
6.5 / 12
91.6%
+15
1 = 0 1 1 0 0 1 0 1 0 1
–   Plisk 0.2.7d 64-bit2363+19
−19		(−18)3 − 5
(+3−5=0)		37.5%
3.0 / 8
91.1%
−130
0 0 1 0 0 1 0 1
–   RomiChess P3m 64-bit2360+27
−27		(−21)1.5 − 4.5
(+1−4=1)		25.0%
1.5 / 6
89.3%
−216
= 0 1 0 0 0
–   Dirty 0.99z2354+34
−34		(−27)3.5 − 2.5
(+3−2=1)		58.3%
3.5 / 6
91.2%
+41
0 1 1 = 0 1
–   Barbarossa 0.6.0 64-bit2352+25
−26		(−29)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
96.2%
+113
1 =
–   KnightX 1.94 64-bit2352+22
−22		(−29)3 − 1
(+3−1=0)		75.0%
3.0 / 4
97.6%
+198
0 1 1 1
–   Napoleon 1.8 64-bit2338+17
−17		(−43)8 − 4
(+5−1=6)		66.7%
8.0 / 12
100.0%
+56
0 = = 1 1 = = 1 = 1 1 =
–   Asterisk 0.62332+17
−18		(−49)3 − 3
(+3−3=0)		50.0%
3.0 / 6
100.0%
−49
0 0 1 1 1 0
–   FireFly 2.7.2 64-bit2329+16
−16		(−52)7 − 7
(+4−4=6)		50.0%
7.0 / 14
100.0%
−52
= 0 0 = 0 = 1 1 = 1 0 = 1 =
–   Der Bringer 1.92324+23
−23		(−57)23 − 9
(+21−7=4)
71.9%
23.0 / 32
100.0%
+118
1 1 1 0 1 1 = 1 1 1 1 1 1 = 0 1 1 0 0 1 1 = 0 1 0 1 1 1 0 1 = 1
–   WChess 1.062322+15
−15		(−59)23.5 − 16.5
(+17−10=13)
58.8%
23.5 / 40
100.0%
+1
1 0 1 = 1 0 1 1 = 1 0 1 1 0 = 1 = 1 = 0 1 = = 0 = 0 1 = 1 1 = 0 0 = = 1 1 0 1 =
–   Googleplex Starthinker 1.4 64-bit2321+17
−17		(−60)36.5 − 13.5
(+30−7=13)
73.0%
36.5 / 50
100.0%
+105
1 1 1 = 1 1 = = = = 1 = 1 1 0 1 0 1 1 1 1 1 0 1 0 1 1 1 = 1 = = 1 0 = 0 1 = 1 1 1 1 1 = = 0 1 1 1 1
–   KnightX 1.93 64-bit2321+20
−20		(−60)2.5 − 1.5
(+2−1=1)		62.5%
2.5 / 4
100.0%
+32
1 = 1 0
–   EveAnn 1.722320+15
−16		(−61)3.5 − 2.5
(+2−1=3)		58.3%
3.5 / 6
100.0%
−7
0 = = = 1 1
–   EveAnn 1.71a2319+21
−21		(−62)2.5 − 1.5
(+2−1=1)		62.5%
2.5 / 4
100.0%
+30
1 = 1 0
–   Averno 0.812315+18
−18		(−66)4.5 − 1.5
(+3−0=3)		75.0%
4.5 / 6
100.0%
+81
= 1 = 1 1 =
–   Rival 1.0.1 64-bit2303+24
−24		(−78)17.5 − 12.5
(+15−10=5)
58.3%
17.5 / 30
100.0%
−13
0 0 1 1 1 1 = 1 1 0 0 0 1 = 1 0 0 1 1 = 1 0 = 0 1 0 1 1 = 1
–   RubiChess 0.7 64-bit2302+23
−23		(−79)2.5 − 3.5
(+1−2=3)		41.7%
2.5 / 6
100.0%
−131
0 = = 1 = 0
–   Joker 1.1.142302+19
−19		(−79)4 − 2
(+4−2=0)		66.7%
4.0 / 6
100.0%
+71
1 1 0 0 1 1
–   Sungorus 1.4 64-bit2297+18
−18		(−84)2.5 − 3.5
(+2−3=1)		41.7%
2.5 / 6
100.0%
−143
1 1 0 0 0 =
–   CT800 1.34 64-bit2297+20
−20		(−84)5.5 − 2.5
(+4−1=3)		68.8%
5.5 / 8
100.0%
+37
1 = = = 1 1 1 0
–   Invictus r228 64-bit2292+18
−18		(−89)5.5 − 4.5
(+4−3=3)		55.0%
5.5 / 10
100.0%
−48
1 = 1 = 0 0 0 1 1 =
–   Matilde 2008 64-bit2290+21
−21		(−91)5 − 1
(+5−1=0)		83.3%
5.0 / 6
100.0%
+233
1 0 1 1 1 1
–   Chaturanga 2.4.32290+19
−19		(−91)3 − 3
(+1−1=4)		50.0%
3.0 / 6
100.0%
−84
0 = = = 1 =
–   AliChess 4.252283+19
−19		(−98)2.5 − 3.5
(+2−3=1)		41.7%
2.5 / 6
100.0%
−165
0 0 = 1 1 0
–   Kingfisher 1.0 64-bit2281+29
−29		(−100)3.5 − 2.5
(+2−1=3)		58.3%
3.5 / 6
100.0%
−47
0 = 1 = = 1
–   Barbarossa 0.5.0 64-bit2277+19
−19		(−104)27 − 17
(+25−15=4)
61.4%
27.0 / 44
100.0%
−12
0 0 1 1 1 0 1 1 1 1 1 0 0 1 1 0 0 1 1 1 1 1 0 1 0 1 0 0 = 0 1 1 0 = 0 0 1 = 1 = 1 1 1 1
–   Zevra 1.8.6 r672 64-bit2270+21
−20		(−111)43 − 17
(+32−6=22)
71.7%
43.0 / 60
100.0%
+31
1 = = = 1 = 1 0 1 = 0 1 = = 1 0 1 0 1 = 1 1 1 = 1 1 = 1 1 1 = 1 1 1 1 1 = = 1 1 = = = 1 = 1 1 1 1 0 = = 1 0 1 = 1 = = 1
–   Ayito 0.2.9942268+20
−20		(−113)4.5 − 1.5
(+4−1=1)		75.0%
4.5 / 6
100.0%
+83
1 0 1 = 1 1
–   CT800 1.30 64-bit2257+20
−20		(−124)4 − 2
(+4−2=0)		66.7%
4.0 / 6
100.0%
+26
0 1 1 1 1 0
–   RattateChess 1.0 Nosferatu2254+18
−19		(−127)3 − 3
(+2−2=2)		50.0%
3.0 / 6
100.0%
−127
1 1 0 0 = =
–   Exacto 0.e 64-bit2252+18
−18		(−129)3 − 3
(+2−2=2)		50.0%
3.0 / 6
100.0%
−129
= = 1 0 1 0
–   Beowulf 2.4a 64-bit2250+18
−18		(−131)4 − 2
(+3−1=2)		66.7%
4.0 / 6
100.0%
−12
0 = 1 1 1 =
–   Mango Paola Ajedrez 4.12246+19
−19		(−135)5 − 1
(+4−0=2)		83.3%
5.0 / 6
100.0%
+92
= 1 = 1 1 1
–   RamJet 0.132236+19
−19		(−145)4.5 − 1.5
(+4−1=1)		75.0%
4.5 / 6
100.0%
+45
= 1 1 0 1 1
–   Buzz 0.08 64-bit2235+20
−20		(−146)5.5 − 0.5
(+5−0=1)		91.7%
5.5 / 6
100.0%
+216
1 1 1 1 1 =
–   Dolphin 1.0 64-bit2231+18
−18		(−150)6 − 0
(+6−0=0)		100.0%
6.0 / 6
100.0%
+INF
1 1 1 1 1 1
–   Tiny Chess 1.46 64-bit2225+19
−19		(−156)8.5 − 1.5
(+7−0=3)		85.0%
8.5 / 10
100.0%
+94
1 1 1 = = 1 1 1 = 1
–   OBender 03.2016 64-bit2215+18
−18		(−166)4.5 − 1.5
(+3−0=3)		75.0%
4.5 / 6
100.0%
−18
1 1 = = = 1
–   Neurosis 2.32214+25
−25		(−167)6 − 0
(+6−0=0)		100.0%
6.0 / 6
100.0%
+INF
1 1 1 1 1 1
–   Latista (Sinobyl) 1.52206+22
−22		(−175)1.5 − 4.5
(+1−4=1)		25.0%
1.5 / 6
100.0%
−370
0 = 0 1 0 0
–   GopherCheck 0.2.3 64-bit2190+18
−18		(−191)4.5 − 1.5
(+4−1=1)		75.0%
4.5 / 6
100.0%
+9
0 1 1 1 1 =
–   Asymptote 0.1.8 64-bit2177+21
−21		(−204)5.5 − 0.5
(+5−0=1)		91.7%
5.5 / 6
100.0%
+158
1 = 1 1 1 1
–   Embla 2.0.0 64-bit2172+19
−19		(−209)27 − 9
(+23−5=8)
75.0%
27.0 / 36
100.0%
−23
0 1 1 1 1 1 = = 1 = 1 1 1 1 1 0 1 1 1 1 = = 1 = 1 1 1 = = 1 1 1 0 1 0 0
–   Clever Girl r185 64-bit2171+22
−22		(−210)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
+79
1 1 = 1
–   Chesley r323 64-bit2163+22
−21		(−218)5.5 − 0.5
(+5−0=1)		91.7%
5.5 / 6
100.0%
+140
= 1 1 1 1 1
1218 games: 461 wins, 442 losses, 315 draws (25.9%), score: 50.8%

Rating changes by day

Rating changes with played games

Created in 2005-2013 by CCRL team
Last games added on February 28, 2021