CCRL 40/15
Downloads and Statistics
February 27, 2021
Testing summary:
Total: 1'220'404 games
played by 2'798 programs

White wins: 419'286 (34.4%)
Black wins: 308'460 (25.3%)
Draws: 492'658 (40.4%)
White score: 54.5%

Engine Details

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K2 0.79 (2440+29
−29
)Quote
Author: Sergey Meus (Russia) Link: Download
This is one of the 11 K2 versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   GreKo 2015 64-bit2608+22
−22
(+168)1.5 − 2.5
(+1−2=1)
37.5%
1.5 / 4
0.0%
+85
0 1 = 0
–   Capivara LK 0.09b02f 64-bit2569+17
−17
(+129)1.5 − 6.5
(+1−6=1)
18.8%
1.5 / 8
0.0%
−131
1 0 0 0 = 0 0 0
–   GreKo 13.1 64-bit2565+30
−30
(+125)0 − 8
(+0−8=0)
0.0%
0.0 / 8
0.0%
−INF
0 0 0 0 0 0 0 0
–   SOS 5.12563+13
−13
(+123)2 − 6
(+1−5=2)
25.0%
2.0 / 8
0.0%
−56
0 = 1 0 = 0 0 0
–   JikChess 0.02 64-bit2558+15
−16
(+118)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
0.0%
+85
= = 0 = 1 0 0 1 0 1
–   Arasan 12.0 64-bit2555+23
−23
(+115)2.5 − 5.5
(+1−4=3)
31.3%
2.5 / 8
0.0%
−7
0 0 1 = = 0 = 0
–   Phalanx XXIV2537+20
−20
(+97)3 − 7
(+2−6=2)
30.0%
3.0 / 10
0.0%
−54
0 1 0 0 0 1 = = 0 0
–   Maverick 1.5 64-bit2536+14
−14
(+96)3 − 1
(+3−1=0)
75.0%
3.0 / 4
0.0%
+322
0 1 1 1
–   nanoSzachy 4.1 64-bit2533+17
−17
(+93)4 − 8
(+1−5=6)
33.3%
4.0 / 12
0.0%
−6
= = = = 0 0 0 = = 1 0 0
–   Fridolin 2.00 64-bit2531+16
−16
(+91)6 − 10
(+4−8=4)
37.5%
6.0 / 16
0.0%
+3
0 0 0 = = 0 0 0 0 1 0 = 1 = 1 1
–   Donna 3.1 64-bit2518+28
−28
(+78)1.5 − 8.5
(+0−7=3)
15.0%
1.5 / 10
0.0%
−171
0 = 0 = 0 0 = 0 0 0
–   Crafty 20.14 32-bit2517+27
−27
(+77)3.5 − 4.5
(+2−3=3)
43.8%
3.5 / 8
0.0%
+34
0 1 = 0 1 = = 0
–   Tao 5.62502+16
−16
(+62)1 − 1
(+0−0=2)
50.0%
1.0 / 2
0.0%
+62
= =
–   Pupsi2 0.092499+17
−17
(+59)0 − 2
(+0−2=0)
0.0%
0.0 / 2
0.0%
−INF
0 0
–   LittleThought 1.052 64-bit2497+16
−16
(+57)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
0.0%
+214
= 1
–   Pepito 1.59.2 64-bit2495+17
−17
(+55)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
0.1%
+211
1 =
–   Delphil 3.2 64-bit2495+14
−15
(+55)6 − 6
(+5−5=2)
50.0%
6.0 / 12
0.0%
+55
0 0 1 1 = = 1 0 1 1 0 0
–   Yace 0.99.872487+16
−16
(+47)1 − 1
(+0−0=2)
50.0%
1.0 / 2
0.3%
+47
= =
–   Ghost 2.0.2 64-bit2485+18
−18
(+45)5.5 − 6.5
(+4−5=3)
45.8%
5.5 / 12
0.4%
+17
= = 1 = 0 0 1 0 0 0 1 1
–   KnightX 1.97a 64-bit2484+27
−27
(+44)2 − 4
(+2−4=0)
33.3%
2.0 / 6
1.4%
−105
0 0 0 1 1 0
–   Zurichess Geneva 64-bit2483+26
−26
(+43)3.5 − 10.5
(+1−8=5)
25.0%
3.5 / 14
1.4%
−121
0 = 0 0 = = 0 = 1 0 0 0 0 =
–   Xpdnt 0910072482+15
−15
(+42)1 − 1
(+1−1=0)
50.0%
1.0 / 2
0.5%
+42
0 1
–   Matacz 1.32477+25
−25
(+37)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
2.9%
+79
= = 1 = 0 1 1 0
–   Shield 1.2 64-bit2474+26
−26
(+34)0 − 2
(+0−2=0)
0.0%
0.0 / 2
4.5%
−INF
0 0
–   Trace 1.37a2471+18
−18
(+31)3.5 − 4.5
(+2−3=3)
43.8%
3.5 / 8
3.7%
−12
0 1 = 1 = 0 0 =
–   Quark 2.352469+18
−17
(+29)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
4.9%
+171
= 1
–   Bumblebee 1.0 64-bit2465+21
−21
(+25)1 − 1
(+1−1=0)
50.0%
1.0 / 2
8.1%
+25
0 1
–   Carballo 1.32462+25
−25
(+22)5 − 5
(+3−3=4)
50.0%
5.0 / 10
12.2%
+22
= 1 1 0 = = 1 = 0 0
–   Giraffe 20150908 64-bit2462+19
−18
(+22)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
10.4%
−9
= 1 1 0 = 0 = 0 0 1
–   Typhoon 1.00-3482444+30
−30
(+4)3 − 5
(+1−3=4)
37.5%
3.0 / 8
42.6%
−66
0 1 0 = = = 0 =
–   Abrok 5.02444+18
−18
(+4)3.5 − 4.5
(+2−3=3)
43.8%
3.5 / 8
40.0%
−33
= = 0 = 0 1 1 0
–   Betsabe II 1.472443+20
−20
(+3)7 − 11
(+6−10=2)
38.9%
7.0 / 18
43.0%
−83
1 1 0 0 0 0 1 1 0 1 0 0 0 = 0 1 0 =
–   TJchess 1.3 64-bit2434+17
−17
(−6)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
63.8%
+276
1 1 1 =
–   Cmcchess 2.6 64-bit2422+17
−17
(−18)7.5 − 10.5
(+4−7=7)
41.7%
7.5 / 18
86.3%
−72
0 1 0 0 1 = = 1 0 0 = = = = 0 0 = 1
–   Bitfoot 1.0.d9aeb43 64-bit2419+25
−25
(−21)12 − 4
(+10−2=4)
75.0%
12.0 / 16
85.8%
+158
1 1 1 = 0 0 1 1 = 1 1 1 = 1 = 1
–   Ares 1.005 64-bit2418+18
−18
(−22)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
89.4%
+25
1 = 1 = 1 = 0 0
–   Gaia 3.5 64-bit2416+21
−21
(−24)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
91.1%
+13
= = 1 1 0 0 = 1
–   Shallow r688 64-bit2413+19
−19
(−27)5 − 3
(+4−2=2)
62.5%
5.0 / 8
94.0%
+61
1 0 0 1 1 1 = =
–   Ares 1.005.2 64-bit2411+17
−18
(−29)4 − 2
(+2−0=4)
66.7%
4.0 / 6
95.3%
+60
1 = 1 = = =
–   Tigran 2.4n 64-bit2401+17
−17
(−39)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
98.9%
+3
0 0 = = 1 1 1 =
–   Simplex 0.9.8 64-bit2401+17
−17
(−39)5 − 3
(+4−2=2)
62.5%
5.0 / 8
99.0%
+49
0 = 1 1 = 1 1 0
–   Lozza 1.16 64-bit2398+25
−25
(−42)13 − 5
(+10−2=6)
72.2%
13.0 / 18
98.6%
+111
1 = = 0 1 = 1 1 = 1 1 0 1 = 1 1 1 =
–   Myrddin 0.87 64-bit2397+13
−13
(−43)2.5 − 3.5
(+2−3=1)
41.7%
2.5 / 6
99.7%
−112
0 0 1 1 = 0
–   Shield 1.1 64-bit2391+30
−30
(−49)5 − 5
(+4−4=2)
50.0%
5.0 / 10
99.0%
−53
0 = 0 0 1 1 0 = 1 1
–   Waxman 20142390+20
−20
(−50)2 − 2
(+1−1=2)
50.0%
2.0 / 4
99.7%
−60
= 0 = 1
–   Giraffe 20150828 64-bit2384+31
−31
(−56)5 − 3
(+3−1=4)
62.5%
5.0 / 8
99.6%
+18
= = = 1 1 1 0 =
–   MadChess 2.0 64-bit2370+22
−22
(−70)1.5 − 2.5
(+1−2=1)
37.5%
1.5 / 4
100.0%
−152
= 0 0 1
–   Waxman 20152356+24
−24
(−84)9.5 − 4.5
(+7−2=5)
67.9%
9.5 / 14
100.0%
+34
1 0 = 1 1 1 = = = 1 = 0 1 1
–   CyberPagno 2.3 64-bit2344+27
−27
(−96)2.5 − 1.5
(+1−0=3)
62.5%
2.5 / 4
100.0%
−28
1 = = =
–   Jazz 840 64-bit2340+15
−15
(−100)2.5 − 1.5
(+2−1=1)
62.5%
2.5 / 4
100.0%
−17
1 1 = 0
–   Gibbon 2.69a 64-bit2320+18
−18
(−120)3 − 1
(+2−0=2)
75.0%
3.0 / 4
100.0%
+29
= 1 = 1
–   Fischerle 0.9.65 64-bit2289+29
−29
(−151)4 − 0
(+4−0=0)
100.0%
4.0 / 4
100.0%
+INF
1 1 1 1

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Created in 2005-2013 by CCRL team
Last games added on February 27, 2021