CCRL 40/40
Downloads and Statistics
December 9, 2017
Testing summary:
Total: 766'023 games
played by 1'997 programs
104955 CPU days (X2 4600+)

White wins: 262'896 (34.3%)
Black wins: 194'802 (25.4%)
Draws: 308'325 (40.3%)
White score: 54.4%

Engine Details

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K2 0.83 (2531+27
−27
)Quote
Author: Sergey Meus (Russia) Link: Download
This is one of the 8 K2 versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Carballo 1.6 64-bit2710+28
−27
(+179)2 − 4
(+1−3=2)
33.3%
2.0 / 6
0.0%
+68
–   Ethereal 8.19 64-bit2687+26
−26
(+156)2 − 8
(+1−7=2)
20.0%
2.0 / 10
0.0%
−76
–   RedQueen 1.1.98 64-bit2663+21
−21
(+132)5 − 3
(+3−1=4)
62.5%
5.0 / 8
0.0%
+210
–   Floyd 0.9 64-bit2659+19
−19
(+128)1 − 3
(+1−3=0)
25.0%
1.0 / 4
0.0%
−107
–   WyldChess 1.4 64-bit2639+27
−27
(+108)2 − 8
(+1−7=2)
20.0%
2.0 / 10
0.0%
−127
–   Amoeba 1.2 64-bit2625+29
−29
(+94)6.5 − 11.5
(+2−7=9)
36.1%
6.5 / 18
0.0%
+8
–   Ethereal 8.12 64-bit2609+26
−26
(+78)3.5 − 6.5
(+0−3=7)
35.0%
3.5 / 10
0.0%
−1
–   Gogobello 1.3 64-bit2607+27
−27
(+76)3 − 7
(+2−6=2)
30.0%
3.0 / 10
0.0%
−73
–   DanaSah 6.502604+22
−22
(+73)5.5 − 4.5
(+5−4=1)
55.0%
5.5 / 10
0.0%
+116
–   Arminius 2015-08-06 64-bit2602+20
−20
(+71)1.5 − 2.5
(+1−2=1)
37.5%
1.5 / 4
0.0%
−11
–   GreKo 2016 64-bit2589+22
−22
(+58)3 − 7
(+2−6=2)
30.0%
3.0 / 10
0.0%
−95
–   GreKo 12.9 64-bit2588+31
−31
(+57)2.5 − 5.5
(+1−4=3)
31.3%
2.5 / 8
0.3%
−57
–   Ethereal 7.78 64-bit2587+25
−25
(+56)3.5 − 6.5
(+3−6=1)
35.0%
3.5 / 10
0.1%
−60
–   Marvin 2.1.0 64-bit2584+27
−28
(+53)2.5 − 7.5
(+0−5=5)
25.0%
2.5 / 10
0.3%
−100
–   Crafty 22.4 32-bit2583+33
−33
(+52)1.5 − 6.5
(+0−5=3)
18.8%
1.5 / 8
0.7%
−160
–   Jellyfish 1.1 64-bit2574+17
−17
(+43)5.5 − 6.5
(+3−4=5)
45.8%
5.5 / 12
0.3%
+11
–   Capivara LK 0.09b02f 64-bit2565+18
−18
(+34)4 − 4
(+1−1=6)
50.0%
4.0 / 8
1.9%
+34
–   Capivara LK 0.09b02g 64-bit2558+19
−19
(+27)3 − 5
(+2−4=2)
37.5%
3.0 / 8
5.4%
−55
–   JikChess 0.02 64-bit2556+17
−17
(+25)1.5 − 2.5
(+1−2=1)
37.5%
1.5 / 4
6.4%
−57
–   Zurichess Glarus 64-bit2556+27
−27
(+25)5.5 − 6.5
(+3−4=5)
45.8%
5.5 / 12
9.0%
−2
–   Arasan 12.1 64-bit2553+36
−36
(+22)4 − 4
(+2−2=4)
50.0%
4.0 / 8
16.7%
+16
–   Tornado 3.42a 32-bit2544+34
−34
(+13)2.5 − 5.5
(+1−4=3)
31.3%
2.5 / 8
26.9%
−109
–   nanoSzachy 4.1 64-bit2532+18
−17
(+1)9 − 7
(+5−3=8)
56.3%
9.0 / 16
47.1%
+45
–   Booot 4.13.02525+32
−32
(−6)4 − 4
(+3−3=2)
50.0%
4.0 / 8
61.0%
−12
–   Fridolin 2.0 64-bit2525+16
−16
(−6)2 − 2
(+2−2=0)
50.0%
2.0 / 4
65.9%
−6
–   Twisted Logic 0.099x2521+33
−33
(−10)4.5 − 3.5
(+2−1=5)
56.3%
4.5 / 8
67.1%
+21
–   Maverick 1.5 64-bit2519+18
−18
(−12)1.5 − 2.5
(+0−1=3)
37.5%
1.5 / 4
76.6%
−71
–   Ufim 8.002518+32
−32
(−13)4.5 − 3.5
(+4−3=1)
56.3%
4.5 / 8
72.3%
+33
–   EXchess 6.10b 32-bit2516+32
−32
(−15)4 − 4
(+3−3=2)
50.0%
4.0 / 8
75.5%
−15
–   Colossus 2006d2513+32
−32
(−18)6 − 2
(+5−1=2)
75.0%
6.0 / 8
79.9%
+165
–   Floyd 0.8 64-bit2509+25
−25
(−22)6 − 6
(+5−5=2)
50.0%
6.0 / 12
88.7%
−26
–   CyberPagno 3.0 64-bit2503+20
−20
(−28)1 − 3
(+0−2=2)
25.0%
1.0 / 4
95.2%
−177
–   Dorky 4.5 64-bit2500+22
−22
(−31)6.5 − 3.5
(+4−1=5)
65.0%
6.5 / 10
96.3%
+60
–   Cheng3 1.03 64-bit2498+33
−33
(−33)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
93.6%
+8
–   Delphil 3.2 64-bit2494+17
−17
(−37)4.5 − 3.5
(+2−1=5)
56.3%
4.5 / 8
99.0%
0
–   Ghost 2.0.2 64-bit2482+18
−18
(−49)5 − 3
(+5−3=0)
62.5%
5.0 / 8
99.9%
+58
–   Shield 1.2 64-bit2474+27
−27
(−57)4.5 − 3.5
(+4−3=1)
56.3%
4.5 / 8
99.9%
−4
–   Dirty 14M-222466+33
−33
(−65)6 − 2
(+5−1=2)
75.0%
6.0 / 8
99.9%
+114
–   Giraffe 20150908 64-bit2462+21
−21
(−69)2.5 − 1.5
(+2−1=1)
62.5%
2.5 / 4
100.0%
+16
–   Betsabe II 1.662458+22
−22
(−73)5.5 − 2.5
(+5−2=1)
68.8%
5.5 / 8
100.0%
+79
–   Bumblebee 1.0.36898e1 64-bit2448+21
−21
(−83)2.5 − 1.5
(+1−0=3)
62.5%
2.5 / 4
100.0%
−15
–   Cheese 1.4 32-bit2446+33
−33
(−85)4 − 4
(+2−2=4)
50.0%
4.0 / 8
100.0%
−85
–   Lozza 1.17 64-bit2444+19
−19
(−87)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+195
–   Gaviota 0.74.41 32-bit2443+34
−34
(−88)6 − 2
(+5−1=2)
75.0%
6.0 / 8
100.0%
+91
–   Typhoon 1.00-3482439+33
−34
(−92)4 − 4
(+3−3=2)
50.0%
4.0 / 8
100.0%
−92
–   Delphil 2.32438+32
−33
(−93)5.5 − 2.5
(+5−2=1)
68.8%
5.5 / 8
100.0%
+61
–   Abrok 5.02431+21
−21
(−100)5 − 3
(+4−2=2)
62.5%
5.0 / 8
100.0%
−6
–   Cmcchess 2.6 64-bit2423+19
−19
(−108)9 − 3
(+7−1=4)
75.0%
9.0 / 12
100.0%
+64
–   Pedone 0.4 64-bit2423+29
−29
(−108)6 − 2
(+5−1=2)
75.0%
6.0 / 8
100.0%
+78
–   Ares 1.005 64-bit2416+18
−19
(−115)3.5 − 4.5
(+2−3=3)
43.8%
3.5 / 8
100.0%
−157
–   Ares 1.005.2 64-bit2407+18
−18
(−124)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+165
–   Hermann 1.92404+34
−34
(−127)6 − 2
(+5−1=2)
75.0%
6.0 / 8
100.0%
+52
–   Cyrano 0.2f2402+33
−33
(−129)5.5 − 2.5
(+4−1=3)
68.8%
5.5 / 8
100.0%
−6
–   Simplex 0.9.8 64-bit2401+20
−20
(−130)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
100.0%
−86
–   Lozza 1.16 64-bit2395+25
−25
(−136)6.5 − 1.5
(+5−0=3)
81.3%
6.5 / 8
100.0%
+73
–   Tigran 2.4n 64-bit2392+18
−18
(−139)8 − 0
(+8−0=0)
100.0%
8.0 / 8
100.0%
+INF
–   Shield 1.1 64-bit2391+31
−31
(−140)5.5 − 2.5
(+4−1=3)
68.8%
5.5 / 8
100.0%
−23
–   Myrddin 0.87 64-bit2379+17
−17
(−152)4 − 4
(+2−2=4)
50.0%
4.0 / 8
100.0%
−157

Rating changes by day

Rating changes with played games

Participation in the pure lists

Pure listRankRatingNumber of games
K2 0.83
played with current
participants of this list
Represented by
1-2-CPU    142K2 0.87
All    142K2 0.87
Free    142K2 0.87
Free 1-2-CPU    142K2 0.87
Free single-CPU    142K2 0.87
Single-CPU    142K2 0.87

Created in 2005-2013 by CCRL team
Last games added on December 9, 2017