CCRL 40/40
Downloads and Statistics
November 16, 2019
Testing summary:
Total: 1'098'633 games
played by 2'562 programs
150143 CPU days (X2 4600+)

White wins: 380'990 (34.7%)
Black wins: 283'127 (25.8%)
Draws: 434'516 (39.6%)
White score: 54.5%

Engine Details

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Show each game results
K2 0.75 (2491+23
−23
)Quote
Author: Sergey Meus (Russia) Link: Download
This is one of the 10 K2 versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   ChessBrainVB 2.052669+23
−23
(+178)2 − 4
(+0−2=4)
33.3%
2.0 / 6
0.0%
+88
–   Laser 0.2.1 64-bit2647+23
−23
(+156)1.5 − 6.5
(+0−5=3)
18.8%
1.5 / 8
0.0%
−50
–   Sjakk 2.2 64-bit2634+15
−15
(+143)0 − 2
(+0−2=0)
0.0%
0.0 / 2
0.0%
−INF
–   NoraGrace 2.0 64-bit2625+15
−15
(+134)1 − 3
(+0−2=2)
25.0%
1.0 / 4
0.0%
−23
–   Donna 4.0 64-bit2606+15
−15
(+115)3.5 − 4.5
(+2−3=3)
43.8%
3.5 / 8
0.0%
+72
–   GreKo 12.8 64-bit2604+30
−30
(+113)3.5 − 8.5
(+1−6=5)
29.2%
3.5 / 12
0.0%
−19
–   Arminius 2015-08-06 64-bit2604+19
−19
(+113)3.5 − 8.5
(+2−7=3)
29.2%
3.5 / 12
0.0%
−40
–   Brutus 8.05 64-bit2589+22
−22
(+98)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−59
–   Jellyfish 1.1 64-bit2580+15
−15
(+89)6.5 − 7.5
(+4−5=5)
46.4%
6.5 / 14
0.0%
+63
–   GreKo 12.9 64-bit2578+29
−29
(+87)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−55
–   Capivara LK 0.09b02f 64-bit2569+17
−17
(+78)3 − 5
(+3−5=0)
37.5%
3.0 / 8
0.0%
−29
–   Zurichess Glarus 64-bit2559+27
−27
(+68)2.5 − 3.5
(+2−3=1)
41.7%
2.5 / 6
0.0%
0
–   JikChess 0.02 64-bit2556+16
−16
(+65)6.5 − 3.5
(+4−1=5)
65.0%
6.5 / 10
0.0%
+155
–   Arasan 12.0 64-bit2555+23
−23
(+64)6 − 4
(+4−2=4)
60.0%
6.0 / 10
0.0%
+127
–   Pirarucu 2.1.1 64-bit2549+27
−27
(+58)3.5 − 4.5
(+3−4=1)
43.8%
3.5 / 8
0.1%
+13
–   nanoSzachy 4.0 64-bit2546+18
−18
(+55)3.5 − 6.5
(+2−5=3)
35.0%
3.5 / 10
0.0%
−46
–   Crafty 21.5 32-bit2542+32
−32
(+51)2.5 − 7.5
(+2−7=1)
25.0%
2.5 / 10
0.6%
−161
–   Phalanx XXIV2537+20
−20
(+46)2 − 3
(+0−1=4)
40.0%
2.0 / 5
0.2%
+6
–   Maverick 1.5 64-bit2534+14
−14
(+43)6 − 5
(+4−3=4)
54.5%
6.0 / 11
0.1%
+77
–   Fridolin 2.00 64-bit2531+16
−15
(+40)6 − 9
(+2−5=8)
40.0%
6.0 / 15
0.3%
−14
–   nanoSzachy 4.1 64-bit2529+17
−17
(+38)0 − 1
(+0−1=0)
0.0%
0.0 / 1
0.5%
−INF
–   Donna 3.1 64-bit2518+28
−28
(+27)5 − 4
(+3−2=4)
55.6%
5.0 / 9
7.6%
+67
–   AnMon 5.602515+15
−15
(+24)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
4.8%
−7
–   Hamsters 0.42508+31
−31
(+17)5.5 − 4.5
(+4−3=3)
55.0%
5.5 / 10
20.4%
+52
–   Maverick 1.0 64-bit2508+26
−26
(+17)12 − 8
(+10−6=4)
60.0%
12.0 / 20
16.9%
+90
–   Tao 5.62503+16
−16
(+12)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
20.7%
−18
–   Arminius 2014-01-18 64-bit2503+24
−24
(+12)2.5 − 1.5
(+2−1=1)
62.5%
2.5 / 4
25.6%
+107
–   LittleThought 1.052 64-bit2500+16
−16
(+9)1 − 1
(+1−1=0)
50.0%
1.0 / 2
27.2%
+9
–   Delphil 3.2 64-bit2498+15
−15
(+7)11 − 10
(+6−5=10)
52.4%
11.0 / 21
33.0%
+22
–   Pupsi2 0.092497+17
−17
(+6)1 − 1
(+1−1=0)
50.0%
1.0 / 2
35.2%
+6
–   Pepito 1.59 64-bit2492+17
−17
(+1)1 − 3
(+0−2=2)
25.0%
1.0 / 4
47.2%
−149
–   Yace 0.99.872489+17
−17
(−2)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
57.5%
+28
–   Green Light Chess 3.01.2.22489+24
−24
(−2)1.5 − 1.5
(+1−1=1)
50.0%
1.5 / 3
55.6%
+12
–   JikChess 0.01 64-bit2488+24
−24
(−3)10 − 12
(+7−9=6)
45.5%
10.0 / 22
58.0%
−34
–   Ghost 2.0.2 64-bit2485+18
−18
(−6)13.5 − 11.5
(+9−7=9)
54.0%
13.5 / 25
67.9%
+25
–   Xpdnt 0910072482+15
−15
(−9)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
73.8%
−166
–   Pawny 0.3.1 64-bit2475+23
−23
(−16)4 − 6
(+2−4=4)
40.0%
4.0 / 10
84.5%
−75
–   Shield 1.2 64-bit2473+26
−26
(−18)4 − 4
(+3−3=2)
50.0%
4.0 / 8
85.2%
−18
–   Quark 2.352469+18
−18
(−22)1 − 0
(+1−0=0)
100.0%
1.0 / 1
93.7%
+INF
–   Carballo 1.32462+25
−25
(−29)5 − 7
(+3−5=4)
41.7%
5.0 / 12
96.0%
−81
–   Donna 3.0 64-bit2461+32
−32
(−30)6.5 − 1.5
(+6−1=1)
81.3%
6.5 / 8
93.8%
+226
–   Giraffe 20150908 64-bit2460+19
−19
(−31)0 − 2
(+0−2=0)
0.0%
0.0 / 2
98.0%
−INF
–   Donna 2.1 64-bit2460+27
−27
(−31)16 − 14
(+10−8=12)
53.3%
16.0 / 30
96.2%
−8
–   Bumblebee 1.0 64-bit2459+23
−23
(−32)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
97.6%
−67
–   Carballo 1.22458+24
−23
(−33)5 − 7
(+2−4=6)
41.7%
5.0 / 12
97.8%
−82
–   Dorky 4.3 64-bit2450+28
−28
(−41)2 − 2
(+2−2=0)
50.0%
2.0 / 4
98.8%
−41
–   Eeyore 1.52 64-bit2445+18
−18
(−46)6 − 4
(+5−3=2)
60.0%
6.0 / 10
99.9%
+32
–   Abrok 5.02444+18
−18
(−47)6 − 4
(+4−2=4)
60.0%
6.0 / 10
99.9%
+19
–   Betsabe II 1.472443+20
−20
(−48)11.5 − 10.5
(+8−7=7)
52.3%
11.5 / 22
99.9%
−33
–   Zurichess Fribourg 64-bit2440+29
−29
(−51)1 − 1
(+1−1=0)
50.0%
1.0 / 2
99.7%
−51
–   RedQueen 0.7.5 64-bit2434+34
−34
(−57)7 − 3
(+4−0=6)
70.0%
7.0 / 10
99.7%
+54
–   Snitch 1.6.2 64-bit2433+22
−22
(−58)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−58
–   Cmcchess 2.6 64-bit2421+17
−17
(−70)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
+72
–   Ares 1.005 64-bit2418+18
−18
(−73)2 − 2
(+1−1=2)
50.0%
2.0 / 4
100.0%
−73
–   Bitfoot 1.0.d9aeb43 64-bit2414+26
−26
(−77)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−77
–   Shallow r688 64-bit2413+19
−19
(−78)8.5 − 7.5
(+7−6=3)
53.1%
8.5 / 16
100.0%
−56
–   Gaia 3.5 64-bit2411+22
−22
(−80)8.5 − 3.5
(+7−2=3)
70.8%
8.5 / 12
100.0%
+75
–   Ares 1.005.2 64-bit2411+17
−17
(−80)1 − 0
(+1−0=0)
100.0%
1.0 / 1
100.0%
+INF
–   Simplex 0.9.8 64-bit2400+17
−17
(−91)9.5 − 2.5
(+8−1=3)
79.2%
9.5 / 12
100.0%
+123
–   RomiChess P3L 64-bit2400+23
−23
(−91)6 − 4
(+4−2=4)
60.0%
6.0 / 10
100.0%
−22
–   Tigran 2.4n 64-bit2399+17
−17
(−92)9.5 − 8.5
(+7−6=5)
52.8%
9.5 / 18
100.0%
−68
–   Myrddin 0.87 64-bit2396+14
−14
(−95)0.5 − 3.5
(+0−3=1)
12.5%
0.5 / 4
100.0%
−378
–   Alex 2.14a 64-bit2393+18
−18
(−98)6 − 4
(+4−2=4)
60.0%
6.0 / 10
100.0%
−34
–   Waxman 20142389+21
−21
(−102)13.5 − 6.5
(+10−3=7)
67.5%
13.5 / 20
100.0%
+13
–   OliThink 5.3.2 64-bit2374+18
−18
(−117)4.5 − 5.5
(+3−4=3)
45.0%
4.5 / 10
100.0%
−148
–   iCE 0.22372+19
−19
(−119)7 − 3
(+6−2=2)
70.0%
7.0 / 10
100.0%
+30
–   MadChess 2.0 64-bit2369+22
−22
(−122)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
–   Plisk 0.2.7d 64-bit2361+20
−20
(−130)7.5 − 2.5
(+6−1=3)
75.0%
7.5 / 10
100.0%
+49
–   Lozza 1.15 64-bit2346+25
−25
(−145)7.5 − 2.5
(+5−0=5)
75.0%
7.5 / 10
100.0%
+6
–   Jazz 840 64-bit2338+15
−15
(−153)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
+4
–   CyberPagno 2.2 64-bit2336+23
−23
(−155)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
–   Gibbon 2.69a 64-bit2319+18
−18
(−172)9 − 1
(+9−1=0)
90.0%
9.0 / 10
100.0%
+255
–   Nemeton 1.22309+26
−26
(−182)3 − 3
(+1−1=4)
50.0%
3.0 / 6
100.0%
−182
–   Fischerle 0.9.65 64-bit2290+29
−29
(−201)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−58
–   FireFly 2.7.0 64-bit2287+17
−17
(−204)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−61
–   Orion 0.2 64-bit2279+21
−21
(−212)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−212
–   Protej 0.5.8c2255+19
−19
(−236)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF

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Created in 2005-2013 by CCRL team
Last games added on November 16, 2019