CCRL 40/15
Downloads and Statistics
April 18, 2021
Testing summary:
Total: 1'237'253 games
played by 2'822 programs

White wins: 424'164 (34.3%)
Black wins: 311'650 (25.2%)
Draws: 501'439 (40.5%)
White score: 54.5%

Engine Details

Options
Show each game results
Zevra 2.1.2 r248 64-bit#262  (2391+19
−19		)Quote
Author: Oleg Smirnov (Russia) Links: github, SDChess
This is one of the 6 Zevra versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Mr Bob 0.8.0 64-bit2655+25
−25		(+264)0 − 4
(+0−4=0)		0.0%
0.0 / 4
0.0%
−INF
0 0 0 0
–   Donna 4.1 64-bit2585+14
−14		(+194)1.5 − 2.5
(+0−1=3)		37.5%
1.5 / 4
0.0%
+126
= = 0 =
–   Delocto 0.6 64-bit2580+15
−15		(+189)2.5 − 7.5
(+1−6=3)		25.0%
2.5 / 10
0.0%
+14
= 0 = = 0 0 0 0 1 0
–   Jumbo 0.7.0 64-bit2559+18
−19		(+168)3 − 1
(+3−1=0)		75.0%
3.0 / 4
0.0%
+395
1 1 0 1
–   Mr Bob 0.7.1 64-bit2557+28
−28		(+166)0 − 1
(+0−1=0)		0.0%
0.0 / 1
0.0%
−INF
0
–   Detroid 1.0.1 64-bit2557+18
−18		(+166)1 − 3
(+0−2=2)		25.0%
1.0 / 4
0.0%
+15
0 = = 0
–   Velvet 1.0.0 64-bit2556+24
−24		(+165)1 − 3
(+0−2=2)		25.0%
1.0 / 4
0.0%
+22
= 0 = 0
–   Ghost 3.1 64-bit2551+15
−15		(+160)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.0%
+127
= = 1 1 0 = 0 0 0 1
–   paulchen332 0.1.1 64-bit2547+48
−47		(+156)0 − 2
(+0−2=0)		0.0%
0.0 / 2
0.0%
−INF
0 0
–   KnightX 1.98 64-bit2542+27
−27		(+151)0 − 4
(+0−4=0)		0.0%
0.0 / 4
0.0%
−INF
0 0 0 0
–   Supernova 2.2.1 64-bit2539+29
−29		(+148)0 − 2
(+0−2=0)		0.0%
0.0 / 2
0.0%
−INF
0 0
–   Axolotl 1.9 64-bit2529+19
−19		(+138)10 − 8
(+7−5=6)		55.6%
10.0 / 18
0.0%
+172
1 0 1 0 0 = = 1 0 = 1 1 0 = 1 = = 1
–   KnightX 2.3 64-bit2525+26
−26		(+134)0.5 − 3.5
(+0−3=1)		12.5%
0.5 / 4
0.0%
−148
0 0 = 0
–   Bagatur 1.5g 64-bit2503+24
−24		(+112)1 − 9
(+0−8=2)		10.0%
1.0 / 10
0.0%
−215
= 0 0 0 0 = 0 0 0 0
–   WyldChess 1.1 64-bit2501+27
−28		(+110)4 − 6
(+1−3=6)		40.0%
4.0 / 10
0.0%
+54
1 = = 0 = = 0 0 = =
–   Arasan 10.32498+23
−23		(+107)5 − 5
(+4−4=2)		50.0%
5.0 / 10
0.0%
+107
0 1 = = 1 1 0 0 0 1
–   Zurichess Geneva 64-bit2484+26
−26		(+93)3 − 7
(+2−6=2)		30.0%
3.0 / 10
0.0%
−56
= 1 0 = 0 0 0 0 1 0
–   Drosophila 1.5.1 64-bit2479+15
−15		(+88)2 − 2
(+1−1=2)		50.0%
2.0 / 4
0.0%
+88
= 1 0 =
–   Shield 1.2 64-bit2474+26
−26		(+83)3.5 − 6.5
(+2−5=3)		35.0%
3.5 / 10
0.0%
−17
1 0 = 0 0 1 0 = 0 =
–   Halogen 6 64-bit2472+37
−37		(+81)0.5 − 3.5
(+0−3=1)		12.5%
0.5 / 4
0.0%
−200
0 = 0 0
–   Raven 0.90 64-bit2469+30
−30		(+78)2 − 6
(+1−5=2)		25.0%
2.0 / 8
0.0%
−105
0 1 0 0 0 = 0 =
–   Bumblebee 1.0 64-bit2465+21
−21		(+74)4 − 6
(+3−5=2)		40.0%
4.0 / 10
0.0%
0
= = 0 1 1 0 0 0 0 1
–   Nemeton 1.812464+18
−18		(+73)3.5 − 6.5
(+3−6=1)		35.0%
3.5 / 10
0.0%
−50
0 = 1 1 0 0 0 1 0 0
–   Giraffe 20150908 64-bit2462+18
−18		(+71)6 − 4
(+5−3=2)		60.0%
6.0 / 10
0.0%
+138
1 0 = 1 1 0 1 0 = 1
–   Donna 3.0 64-bit2462+32
−32		(+71)4 − 6
(+3−5=2)		40.0%
4.0 / 10
0.0%
−3
= 0 0 1 0 1 1 = 0 0
–   Stash 18.0 64-bit2447+29
−28		(+56)4 − 8
(+2−6=4)		33.3%
4.0 / 12
0.1%
−51
0 0 = 0 = = = 0 0 1 0 1
–   Axolotl 1.8 64-bit2446+19
−19		(+55)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.0%
+27
0 0 1 = 0 = 1 1 0 =
–   Mephisto Gideon Professional2444+23
−23		(+53)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.0%
+21
1 = 0 1 = 0 0 0 1 =
–   Hussar 0.42444+16
−17		(+53)0 − 2
(+0−2=0)		0.0%
0.0 / 2
0.0%
−INF
0 0
–   Bearded N44.5 64-bit2441+20
−20		(+50)3.5 − 6.5
(+2−5=3)		35.0%
3.5 / 10
0.0%
−54
= 0 = = 1 1 0 0 0 0
–   Teki 2 64-bit2440+16
−16		(+49)4 − 4
(+3−3=2)		50.0%
4.0 / 8
0.0%
+42
1 0 1 = 1 = 0 0
–   Tunguska 1.1 64-bit2439+18
−18		(+48)6.5 − 7.5
(+4−5=5)		46.4%
6.5 / 14
0.0%
+26
0 0 1 0 1 = = = 1 1 0 = = 0
–   Nemeton 1.62439+24
−24		(+48)4 − 6
(+4−6=0)		40.0%
4.0 / 10
0.1%
−39
0 1 1 0 0 0 1 0 1 0
–   Snitch 1.6.2 64-bit2435+21
−21		(+44)5 − 5
(+4−4=2)		50.0%
5.0 / 10
0.1%
+49
1 0 1 1 0 = 0 = 1 0
–   NoC 4.20 64-bit2423+22
−22		(+32)17 − 15
(+14−12=6)
53.1%
17.0 / 32
1.7%
+56
1 1 1 0 1 0 0 = 1 = = 0 1 = 1 0 0 0 1 = 1 1 1 0 0 1 1 1 0 0 0 =
–   Bitfoot 1.0.d9aeb43 64-bit2422+25
−25		(+31)3 − 7
(+1−5=4)		30.0%
3.0 / 10
2.8%
−96
0 0 1 0 = 0 = = 0 =
–   Gaia 3.5 64-bit2417+21
−21		(+26)5.5 − 4.5
(+5−4=1)		55.0%
5.5 / 10
3.6%
+68
1 1 1 0 0 0 1 = 1 0
–   Hedgehog 2.0 64-bit2414+29
−29		(+23)10 − 16
(+6−12=8)		38.5%
10.0 / 26
9.6%
−58
1 0 0 0 1 = = = 0 1 0 0 1 = 1 = = 0 0 0 = 0 1 0 = 0
–   RomiChess P3n 64-bit2414+13
−13		(+23)2 − 6
(+1−5=2)		25.0%
2.0 / 8
2.5%
−160
1 0 0 0 = 0 0 =
–   KnightDreamer 3.32398+26
−26		(+7)6 − 4
(+4−2=4)		60.0%
6.0 / 10
34.4%
+66
= 1 0 = = 1 = 0 1 1
–   Patzer 3.802397+19
−19		(+6)5.5 − 4.5
(+5−4=1)		55.0%
5.5 / 10
33.2%
+42
1 0 = 0 1 0 1 0 1 1
–   Myrddin 0.87 64-bit2397+13
−13		(+6)20 − 18
(+14−12=12)
52.6%
20.0 / 38
30.7%
+21
= = 1 0 = 0 = 0 1 1 = 0 = 1 1 1 0 = 0 1 = 0 0 = 0 1 1 1 1 0 1 = = 0 1 1 = 0
–   Popochin 4.1 64-bit2396+16
−16		(+5)6.5 − 3.5
(+6−3=1)		65.0%
6.5 / 10
33.6%
+123
0 0 1 1 0 1 = 1 1 1
–   Amateur 2.822395+19
−19		(+4)3 − 7
(+3−7=0)		30.0%
3.0 / 10
38.4%
−182
0 1 0 1 0 1 0 0 0 0
–   CT800 1.40 64-bit2392+28
−28		(+1)8.5 − 11.5
(+5−8=7)		42.5%
8.5 / 20
46.8%
−46
0 1 1 0 = = = 0 = 0 1 = 1 = 0 0 = 0 1 0
–   Ares GB 64-bit2392+14
−14		(+1)5.5 − 6.5
(+4−5=3)		45.8%
5.5 / 12
46.9%
−26
0 1 0 = = 1 0 = 1 1 0 0
–   Ares GB 1.1 64-bit2389+22
−22		(−2)11.5 − 8.5
(+9−6=5)		57.5%
11.5 / 20
54.4%
+50
1 0 1 1 1 = = 1 1 0 1 0 0 0 = 1 = 1 = 0
–   CT800 1.41 64-bit2387+29
−29		(−4)8 − 4
(+7−3=2)		66.7%
8.0 / 12
59.2%
+127
= 1 0 1 1 0 1 1 1 = 1 0
–   Googleplex Starthinker 1.6 64-bit2386+18
−18		(−5)21.5 − 26.5
(+10−15=23)
44.8%
21.5 / 48
64.7%
−36
0 1 0 = = = 0 = 1 = 0 = = 1 = 1 = 0 0 0 = = = = = = = = 1 = 0 = = 1 0 = = 0 1 1 0 1 0 1 0 0 = 0
–   FrankWalter 2.2.3 64-bit2384+31
−31		(−7)5 − 5
(+4−4=2)		50.0%
5.0 / 10
64.8%
−7
1 0 = 0 0 1 1 = 1 0
–   Isa 2.0.83 64-bit2379+23
−23		(−12)11.5 − 16.5
(+8−13=7)		41.1%
11.5 / 28
78.5%
−74
0 1 = 0 = 0 0 0 0 1 0 = 1 1 1 1 0 0 0 1 0 0 1 0 = = = =
–   Jazz 721 64-bit2378+19
−19		(−13)7 − 3
(+6−2=2)		70.0%
7.0 / 10
83.3%
+137
0 0 = 1 1 = 1 1 1 1
–   Waxman 20172371+16
−16		(−20)1.5 − 2.5
(+1−2=1)		37.5%
1.5 / 4
94.0%
−115
0 1 = 0
–   Tytan 9.32 64-bit2369+23
−23		(−22)7.5 − 2.5
(+6−1=3)		75.0%
7.5 / 10
92.4%
+154
1 1 1 1 1 1 = = 0 =
–   Raven 0.80 64-bit2369+29
−29		(−22)2.5 − 5.5
(+1−4=3)		31.3%
2.5 / 8
89.3%
−146
= = 0 0 = 0 0 1
–   Isa 2.0.64 64-bit2364+16
−16		(−27)4.5 − 5.5
(+4−5=1)		45.0%
4.5 / 10
98.3%
−69
1 0 = 0 1 1 0 1 0 0
–   Plisk 0.2.7d 64-bit2363+19
−19		(−28)5.5 − 4.5
(+4−3=3)		55.0%
5.5 / 10
98.0%
+3
0 0 = 1 1 = = 0 1 1
–   Topple 0.1.1 64-bit2359+22
−22		(−32)5 − 5
(+4−4=2)		50.0%
5.0 / 10
98.3%
−32
0 1 0 = 1 1 = 0 1 0
–   Barbarossa 0.6.0 64-bit2357+25
−25		(−34)16 − 12
(+14−10=4)		57.1%
16.0 / 28
98.6%
+21
1 0 1 = 0 0 1 = 0 1 0 1 0 = 1 1 0 1 1 0 1 = 0 1 1 1 0 1
–   pikoSzachy Extreme 22356+34
−34		(−35)6.5 − 3.5
(+6−3=1)		65.0%
6.5 / 10
96.1%
+81
= 0 1 0 1 0 1 1 1 1
–   K2 0.672355+23
−23		(−36)3.5 − 6.5
(+2−5=3)		35.0%
3.5 / 10
99.1%
−135
0 = = 0 1 0 0 = 1 0
–   Isa 2.1 64-bit2352+28
−28		(−39)8 − 4
(+6−2=4)		66.7%
8.0 / 12
98.9%
+71
= 1 1 1 0 1 = 1 1 = 0 =
–   Ceibo 0.5 64-bit2352+25
−25		(−39)21 − 15
(+18−12=6)
58.3%
21.0 / 36
99.4%
+22
1 = 1 1 1 1 1 1 0 1 1 1 0 1 0 = 0 1 0 = 0 0 = = 1 1 1 0 1 0 0 0 1 1 0 =
–   KnightX 1.94 64-bit2352+22
−22		(−39)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
99.5%
+62
0 = = 1 = 1 1 0 1 1
–   Jazz 840 64-bit2340+15
−15		(−51)1.5 − 2.5
(+0−1=3)		37.5%
1.5 / 4
100.0%
−110
= = 0 =
–   Gibbon 2.60a 64-bit2337+20
−20		(−54)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
+45
1 1 1 = = 0 1 1 = 0
–   FoxSEE 5.3 64-bit2336+30
−30		(−55)1.5 − 2.5
(+1−2=1)		37.5%
1.5 / 4
99.9%
−137
1 0 0 =
–   EveAnn 1.712335+28
−28		(−56)3 − 7
(+1−5=4)		30.0%
3.0 / 10
99.9%
−184
= = 0 0 0 = = 1 0 0
–   Butcher 1.61 64-bit2335+30
−30		(−56)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
99.9%
+52
1 = 1 = 1 = 0 0 1 1
–   FireFly 2.7.2 64-bit2329+16
−16		(−62)1 − 1
(+1−1=0)		50.0%
1.0 / 2
100.0%
−62
0 1
–   Zeus 1.272326+25
−25		(−65)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
100.0%
−92
1 0 0 = = 0 1 = = =
–   Googleplex Starthinker 1.4 64-bit2321+17
−17		(−70)6 − 4
(+3−1=6)		60.0%
6.0 / 10
100.0%
−14
0 = = 1 = = = 1 1 =
–   EveAnn 1.722320+16
−16		(−71)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
100.0%
+71
1 =
–   RubiChess 0.7 64-bit2302+23
−23		(−89)6 − 4
(+5−3=2)		60.0%
6.0 / 10
100.0%
−15
1 1 1 = 1 0 = 0 0 1
–   Ant 2006-F2302+19
−19		(−89)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
+17
1 = = 1 0 = 0 1 1 1
–   CT800 1.34 64-bit2297+20
−20		(−94)4.5 − 1.5
(+4−1=1)		75.0%
4.5 / 6
100.0%
+106
= 1 1 1 1 0
–   Invictus r228 64-bit2292+18
−18		(−99)2.5 − 1.5
(+2−1=1)		62.5%
2.5 / 4
100.0%
−6
= 1 0 1
–   Matilde 2008 64-bit2290+21
−21		(−101)6 − 4
(+4−2=4)		60.0%
6.0 / 10
100.0%
−37
1 = = 1 = 0 1 1 0 =
–   Chaturanga 2.4.32290+19
−19		(−101)8 − 2
(+7−1=2)		80.0%
8.0 / 10
100.0%
+126
1 1 = 1 1 1 1 1 = 0
–   Raven 0.70 64-bit2282+29
−29		(−109)1 − 3
(+0−2=2)		25.0%
1.0 / 4
100.0%
−265
0 = 0 =
–   CeeChess 1.3.2 64-bit2269+24
−25		(−122)12 − 4
(+11−3=2)		75.0%
12.0 / 16
100.0%
+84
1 1 0 1 1 1 1 = 1 = 1 0 1 1 0 1
–   Ayito 0.2.9942269+20
−20		(−122)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
−20
= 1 0 1 = 0 1 = 1 1
–   Absolute Zero 3.3.2.0 64-bit2254+32
−33		(−137)9 − 3
(+8−2=2)		75.0%
9.0 / 12
100.0%
+55
1 1 1 1 1 1 1 = 0 0 1 =
–   Hedgehog 1.99 64-bit2242+36
−36		(−149)1 − 1
(+1−1=0)		50.0%
1.0 / 2
100.0%
−149
0 1
–   RamJet 0.132232+19
−19		(−159)9 − 1
(+8−0=2)		90.0%
9.0 / 10
100.0%
+166
1 1 = 1 1 1 1 1 = 1
–   SpaceDog 0.97.7 64-bit2230+22
−22		(−161)6 − 2
(+5−1=2)		75.0%
6.0 / 8
100.0%
+19
1 1 1 0 = 1 1 =
–   Cinnamon 2.3.3 64-bit2226+115
−125		(−165)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
99.7%
−29
= 1
–   Robocide 0.4 64-bit2212+38
−38		(−179)2 − 0
(+2−0=0)		100.0%
2.0 / 2
100.0%
+INF
1 1
–   Achillees 1.0 64-bit2199+27
−27		(−192)7.5 − 2.5
(+7−2=1)		75.0%
7.5 / 10
100.0%
+17
1 1 1 1 1 = 0 1 0 1
–   MORA 1.1.02184+27
−28		(−207)5 − 1
(+4−0=2)		83.3%
5.0 / 6
100.0%
+24
= 1 1 1 = 1
–   Micah 1.0 64-bit2162+25
−25		(−229)1 − 1
(+0−0=2)		50.0%
1.0 / 2
100.0%
−229
= =
–   Fornax 1-2 64-bit2128+115
−138		(−263)1 − 1
(+0−0=2)		50.0%
1.0 / 2
100.0%
−263
= =
–   Little Wing 0.6.0 64-bit2074+33
−33		(−317)2 − 0
(+2−0=0)		100.0%
2.0 / 2
100.0%
+INF
1 1
945 games: 347 wins, 345 losses, 253 draws (26.8%), score: 50.1%

Rating changes by day

Rating changes with played games

Created in 2005-2013 by CCRL team
Last games added on April 18, 2021