CCRL 40/15
Downloads and Statistics
November 16, 2024
Testing summary:
Total: 1'967'497 games
played by 3'973 programs

White wins: 610'660 (31.0%)
Black wins: 425'811 (21.6%)
Draws: 931'026 (47.3%)
White score: 54.7%

Engine Details

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Show each game results
Koivisto 9.0 64-bit (3527+7
−7		)Quote
Authors: Kim Kahre (Finland) , Finn Eggers (Germany) Link: Homepage
This is one of the 12 Koivisto versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Stockfish 17 64-bit3623+12
−12		(+96)17 − 33
(+0−16=34)
34.0%
17.0 / 50
0.0%
−4
–   Stockfish 16 64-bit3623+8
−8		(+96)32 − 68
(+0−36=64)
32.0%
32.0 / 100
0.0%
−18
–   Stockfish 16.1 64-bit3622+9
−9		(+95)18 − 34
(+0−16=36)
34.6%
18.0 / 52
0.0%
−1
–   Stockfish 15.1 64-bit3615+9
−9		(+88)25 − 49
(+0−24=50)
33.8%
25.0 / 74
0.0%
−14
–   Torch v1 64-bit3612+10
−10		(+85)27.5 − 48.5
(+0−21=55)
36.2%
27.5 / 76
0.0%
0
–   ShashChess GZ 64-bit3610+11
−11		(+83)20 − 32
(+0−12=40)
38.5%
20.0 / 52
0.0%
+13
–   Torch v2 64-bit3608+10
−10		(+81)18 − 34
(+0−16=36)
34.6%
18.0 / 52
0.0%
−16
–   Dragon by Komodo 3.3 64-bit3606+7
−7		(+79)20.5 − 35.5
(+0−15=41)
36.6%
20.5 / 56
0.0%
−4
–   Obsidian 14.0 64-bit3596+15
−15		(+69)17 − 29
(+0−12=34)
37.0%
17.0 / 46
0.0%
−10
–   Dragon by Komodo 3.2 64-bit3595+9
−9		(+68)39.5 − 68.5
(+0−29=79)
36.6%
39.5 / 108
0.0%
−15
–   Berserk 12 64-bit3589+9
−9		(+62)28 − 42
(+3−17=50)
40.0%
28.0 / 70
0.0%
0
–   Berserk 13 64-bit3589+8
−8		(+62)22.5 − 29.5
(+0−7=45)
43.3%
22.5 / 52
0.0%
+22
–   Integral v5 64-bit3584+27
−27		(+57)5.5 − 6.5
(+0−1=11)		45.8%
5.5 / 12
0.0%
+32
–   Caissa 1.20 64-bit3578+11
−11		(+51)20 − 30
(+0−10=40)
40.0%
20.0 / 50
0.0%
−9
–   Obsidian 12.0 64-bit3577+12
−12		(+50)17 − 33
(+1−17=32)
34.0%
17.0 / 50
0.0%
−52
–   PlentyChess 2.0.0 64-bit3574+13
−13		(+47)22 − 28
(+2−8=40)
44.0%
22.0 / 50
0.0%
+11
–   Viridithas 15.0.0 64-bit3573+14
−14		(+46)22 − 28
(+0−6=44)
44.0%
22.0 / 50
0.0%
+11
–   Alexandria 7.0.0 64-bit3573+10
−10		(+46)21.5 − 28.5
(+0−7=43)
43.0%
21.5 / 50
0.0%
+4
–   Starzix 6.0 64-bit3571+17
−17		(+44)14 − 17
(+1−4=26)
45.2%
14.0 / 31
0.0%
+15
–   RubiChess 20240817 64-bit3568+12
−12		(+41)20.5 − 29.5
(+0−9=41)
41.0%
20.5 / 50
0.0%
−13
–   Caissa 1.16 64-bit3567+11
−11		(+40)25.5 − 30.5
(+2−7=47)
45.5%
25.5 / 56
0.0%
+12
–   Caissa 1.18 64-bit3567+9
−9		(+40)22.5 − 27.5
(+0−5=45)
45.0%
22.5 / 50
0.0%
+10
–   Stormphrax 6.0.0 64-bit3567+34
−34		(+40)3.5 − 4.5
(+0−1=7)		43.8%
3.5 / 8
1.1%
+6
–   Ethereal 14.25 64-bit3567+8
−8		(+40)25 − 33
(+1−9=48)
43.1%
25.0 / 58
0.0%
−2
–   RubiChess 20240112 64-bit3566+8
−8		(+39)25 − 31
(+2−8=46)
44.6%
25.0 / 56
0.0%
+5
–   Motor 0.8.0 64-bit3566+24
−24		(+39)5 − 7
(+0−2=10)		41.7%
5.0 / 12
0.1%
−11
–   Obsidian 10.0 64-bit3566+11
−11		(+39)24.5 − 31.5
(+1−8=47)
43.8%
24.5 / 56
0.0%
+1
–   Obsidian 11.0 64-bit3562+10
−10		(+35)22.5 − 29.5
(+1−8=43)
43.3%
22.5 / 52
0.0%
−5
–   Fat Fritz 2 64-bit3562+7
−7		(+35)20.5 − 31.5
(+0−11=41)
39.4%
20.5 / 52
0.0%
−29
–   Caissa 1.17 64-bit3562+13
−13		(+35)22.5 − 29.5
(+0−7=45)
43.3%
22.5 / 52
0.0%
−4
–   Clover 7.0 64-bit3561+13
−13		(+34)23 − 27
(+1−5=44)
46.0%
23.0 / 50
0.0%
+12
–   PlentyChess 1.0.0 64-bit3558+11
−11		(+31)23.5 − 26.5
(+0−3=47)
47.0%
23.5 / 50
0.0%
+13
–   Alexandria 6.1.0 64-bit3557+10
−10		(+30)25 − 25
(+2−2=46)
50.0%
25.0 / 50
0.0%
+30
–   Lizard 10.5 64-bit3555+12
−12		(+28)20.5 − 29.5
(+1−10=39)
41.0%
20.5 / 50
0.0%
−27
–   Viridithas 14.0.1 64-bit3554+16
−16		(+27)11.5 − 14.5
(+0−3=23)		44.2%
11.5 / 26
0.0%
−4
–   Berserk 11.1 64-bit3553+9
−9		(+26)48.5 − 62.5
(+0−14=97)
43.7%
48.5 / 111
0.0%
−11
–   Clover 6.2 64-bit3553+13
−13		(+26)23 − 25
(+0−2=46)
47.9%
23.0 / 48
0.0%
+14
–   Titan 1.1.0 64-bit3551+9
−9		(+24)24.5 − 29.5
(+0−5=49)
45.4%
24.5 / 54
0.0%
−3
–   Uralochka 3.41a 64-bit3550+11
−11		(+23)26.5 − 31.5
(+1−6=51)
45.7%
26.5 / 58
0.0%
−2
–   RubiChess 20230918 64-bit3550+9
−9		(+23)33.5 − 38.5
(+3−8=61)
46.5%
33.5 / 72
0.0%
+2
–   Caissa 1.14.1 64-bit3549+12
−12		(+22)24 − 28
(+1−5=46)
46.2%
24.0 / 52
0.0%
0
–   Lizard 10.4 64-bit3548+16
−16		(+21)15 − 19
(+1−5=28)
44.1%
15.0 / 34
0.5%
−12
–   Caissa 1.15 64-bit3548+13
−13		(+21)28 − 30
(+2−4=52)
48.3%
28.0 / 58
0.1%
+10
–   Seer 2.8.0 64-bit3547+8
−8		(+20)32 − 32
(+7−7=50)
50.0%
32.0 / 64
0.0%
+18
–   Obsidian 9.0 64-bit3547+13
−13		(+20)24 − 28
(+2−6=44)
46.2%
24.0 / 52
0.1%
−2
–   Chess System Tal 2.00 EAS 64-bit3545+9
−9		(+18)26 − 30
(+1−5=50)
46.4%
26.0 / 56
0.0%
−1
–   Rebel 16.3 64-bit3544+10
−10		(+17)26.5 − 29.5
(+1−4=51)
47.3%
26.5 / 56
0.1%
+2
–   Clover 6.1 64-bit3543+9
−9		(+16)28.5 − 31.5
(+2−5=53)
47.5%
28.5 / 60
0.0%
+1
–   Alexandria 6.0.0 64-bit3543+12
−12		(+16)26.5 − 25.5
(+3−2=47)
51.0%
26.5 / 52
0.4%
+21
–   Chess System Tal 2.00 Elo 64-bit3542+7
−7		(+15)49.5 − 58.5
(+2−11=95)
45.8%
49.5 / 108
0.0%
−9
–   Clarity 7.2.0 64-bit3540+15
−15		(+13)19 − 22
(+2−5=34)
46.3%
19.0 / 41
4.1%
−7
–   Spaghet BologNNese 1.0 64-bit3540+14
−14		(+13)4 − 5
(+0−1=8)		44.4%
4.0 / 9
4.2%
−15
–   Velvet 8.0.0 64-bit3539+16
−16		(+12)2 − 2
(+0−0=4)		50.0%
2.0 / 4
5.9%
+12
–   Ethereal 14.00 64-bit3534+9
−9		(+7)44.5 − 46.5
(+2−4=85)
48.9%
44.5 / 91
5.9%
0
–   Velvet 8.1.1 64-bit3533+55
−55		(+6)2 − 2
(+1−1=2)		50.0%
2.0 / 4
41.5%
+6
–   rofChade 3.1 64-bit3531+9
−9		(+4)45.5 − 45.5
(+3−3=85)
50.0%
45.5 / 91
19.8%
+4
–   Peacekeeper 3.01 64-bit3528+12
−12		(+1)6 − 7
(+1−2=10)		46.2%
6.0 / 13
43.0%
−26
–   Rebel EAS 64-bit3527+9
−9		(0)36.5 − 39.5
(+6−9=61)
48.0%
36.5 / 76
49.1%
−12
–   Uralochka 3.40a 64-bit3527+9
−9		(0)34.5 − 33.5
(+4−3=61)
50.7%
34.5 / 68
43.8%
+4
–   Caissa 1.13.1 64-bit3527+13
−13		(0)29.5 − 30.5
(+5−6=49)
49.2%
29.5 / 60
50.0%
−5
–   RubiChess 20230410 64-bit3524+10
−10		(−3)47 − 47
(+5−5=84)
50.0%
47.0 / 94
70.7%
−3
–   Igel 3.5.0 64-bit3524+7
−7		(−3)56.5 − 62.5
(+7−13=99)
47.5%
56.5 / 119
70.4%
−18
–   Motor 0.6.0 64-bit3523+16
−16		(−4)2 − 2
(+0−0=4)		50.0%
2.0 / 4
64.7%
−4
–   Starzix 5.0 64-bit3521+14
−14		(−6)7 − 6
(+1−0=12)		53.8%
7.0 / 13
77.5%
+13
–   Berserk 10 64-bit3520+10
−10		(−7)28.5 − 27.5
(+3−2=51)
50.9%
28.5 / 56
86.0%
−1
–   Seer 2.7.0 64-bit3519+12
−12		(−8)33 − 31
(+4−2=58)
51.6%
33.0 / 64
90.1%
+1
–   Alexandria 5.1.0 64-bit3519+13
−13		(−8)4 − 4
(+0−0=8)		50.0%
4.0 / 8
87.1%
−8
–   Revenge 3.0 64-bit3518+7
−7		(−9)47.5 − 49.5
(+7−9=81)
49.0%
47.5 / 97
98.1%
−14
–   Caissa 1.12 64-bit3518+12
−12		(−9)30.5 − 27.5
(+6−3=49)
52.6%
30.5 / 58
90.8%
+6
–   PlentyChess 0.3.0 64-bit3516+16
−16		(−11)24 − 16
(+9−1=30)
60.0%
24.0 / 40
90.6%
+50
–   Velvet 7.3.0 64-bit3516+19
−19		(−11)7.5 − 6.5
(+2−1=11)		53.6%
7.5 / 14
86.3%
+11
–   Clover 6.0 64-bit3515+10
−10		(−12)41.5 − 42.5
(+7−8=69)
49.4%
41.5 / 84
98.6%
−15
–   Fire 9.3 64-bit3514+13
−13		(−13)29.5 − 27.5
(+7−5=45)
51.8%
29.5 / 57
96.9%
−2
–   Viridithas 12.0.0 64-bit3514+14
−14		(−13)12.5 − 11.5
(+2−1=21)		52.1%
12.5 / 24
95.3%
0
–   Alexandria 5.0 64-bit3513+10
−10		(−14)29 − 27
(+5−3=48)
51.8%
29.0 / 56
99.3%
−3
–   Lizard 10.3 64-bit3512+13
−13		(−15)17 − 15
(+3−1=28)
53.1%
17.0 / 32
97.8%
+2
–   Obsidian 8.0 64-bit3512+16
−16		(−15)13.5 − 13.5
(+1−1=25)		50.0%
13.5 / 27
96.0%
−17
–   RubiChess 20221120 64-bit3511+10
−10		(−16)33 − 33
(+3−3=60)
50.0%
33.0 / 66
99.8%
−16
–   Devre 6.0 64-bit3509+18
−18		(−18)4.5 − 3.5
(+1−0=7)		56.3%
4.5 / 8
97.1%
+19
–   Stormphrax 5.0.0 64-bit3507+16
−16		(−20)5 − 4
(+2−1=6)		55.6%
5.0 / 9
99.1%
+17
–   Rebel 16.2 64-bit3507+10
−10		(−20)55 − 43
(+16−4=78)
56.1%
55.0 / 98
100.0%
+17
–   Arasan 24.1 64-bit3505+13
−13		(−22)4.5 − 3.5
(+1−0=7)		56.3%
4.5 / 8
99.9%
+15
–   Viridithas 11.0.0 64-bit3504+10
−10		(−23)2 − 2
(+0−0=4)		50.0%
2.0 / 4
100.0%
−23
–   Igel 3.4.0 64-bit3503+11
−11		(−24)39 − 38
(+2−1=74)
50.6%
39.0 / 77
100.0%
−20
–   Caissa 1.11 64-bit3503+12
−12		(−24)31.5 − 26.5
(+7−2=49)
54.3%
31.5 / 58
100.0%
0
–   Ethereal 13.75 64-bit3503+10
−10		(−24)27 − 25
(+2−0=50)
51.9%
27.0 / 52
100.0%
−12
–   Deep Sjeng 3.6 a30 64-bit3500+18
−18		(−27)34.5 − 25.5
(+10−1=49)
57.5%
34.5 / 60
99.8%
+17
–   Clover 5.0 64-bit3499+12
−12		(−28)31 − 25
(+9−3=44)
55.4%
31.0 / 56
100.0%
+3
–   Lizard 10.2 64-bit3498+16
−16		(−29)18.5 − 17.5
(+4−3=29)
51.4%
18.5 / 36
100.0%
−20
–   Arasan 24.0 64-bit3496+12
−12		(−31)21 − 19
(+4−2=34)
52.5%
21.0 / 40
100.0%
−17
–   Deep Sjeng 3.6 a16 64-bit3494+12
−12		(−33)28 − 24
(+6−2=44)
53.8%
28.0 / 52
100.0%
−9
–   Arasan 24.2.2 64-bit3493+14
−14		(−34)39 − 35
(+8−4=62)
52.7%
39.0 / 74
100.0%
−18
–   Velvet 7.1.0 64-bit3493+15
−15		(−34)19.5 − 14.5
(+5−0=29)
57.4%
19.5 / 34
100.0%
+7
–   Black Marlin 9.0 64-bit3492+12
−12		(−35)23.5 − 16.5
(+7−0=33)
58.8%
23.5 / 40
100.0%
+15
–   SlowChess Blitz 2.9 64-bit3492+7
−7		(−35)46 − 42
(+10−6=72)
52.3%
46.0 / 88
100.0%
−21
–   Seer 2.6.0 64-bit3491+8
−8		(−36)42 − 36
(+8−2=68)
53.8%
42.0 / 78
100.0%
−13
–   Stormphrax 4.1.0 64-bit3490+15
−15		(−37)19.5 − 12.5
(+8−1=23)
60.9%
19.5 / 32
100.0%
+29
–   Rebel 16.1 64-bit3490+12
−12		(−37)32.5 − 23.5
(+11−2=43)
58.0%
32.5 / 56
100.0%
+12
–   Caissa 1.10 64-bit3487+16
−16		(−40)15 − 11
(+5−1=20)		57.7%
15.0 / 26
100.0%
+5
–   Booot 7.3 64-bit3484+10
−10		(−43)9 − 7
(+2−0=14)		56.3%
9.0 / 16
100.0%
−7
–   Altair 7.0.0 64-bit3482+14
−14		(−45)16.5 − 13.5
(+4−1=25)
55.0%
16.5 / 30
100.0%
−14
–   Clover 4.1 64-bit3481+13
−13		(−46)32.5 − 23.5
(+11−2=43)
58.0%
32.5 / 56
100.0%
+2
–   akimbo 1.0.0 64-bit3478+12
−12		(−49)6.5 − 5.5
(+1−0=11)		54.2%
6.5 / 12
100.0%
−24
–   Starzix 4.0 64-bit3478+15
−15		(−49)4 − 4
(+0−0=8)		50.0%
4.0 / 8
100.0%
−49
–   Caissa 1.9 64-bit3478+14
−14		(−49)16.5 − 13.5
(+5−2=23)
55.0%
16.5 / 30
100.0%
−18
–   Equisetum 1.0 64-bit3474+14
−14		(−53)17 − 9
(+8−0=18)		65.4%
17.0 / 26
100.0%
+44
–   Clover 4.0 64-bit3473+13
−13		(−54)37 − 23
(+14−0=46)
61.7%
37.0 / 60
100.0%
+16
–   Viridithas 10.0.0 64-bit3471+14
−14		(−56)23.5 − 12.5
(+11−0=25)
65.3%
23.5 / 36
100.0%
+37
–   Igel 3.3.0 64-bit3471+13
−13		(−56)28 − 24
(+7−3=42)
53.8%
28.0 / 52
100.0%
−33
–   Viridithas 9.1.0 64-bit3470+15
−15		(−57)15 − 9
(+6−0=18)		62.5%
15.0 / 24
100.0%
+19
–   Minic 3.39 64-bit3468+15
−15		(−59)2 − 2
(+0−0=4)		50.0%
2.0 / 4
100.0%
−59
–   Uralochka 3.39d 64-bit3467+10
−10		(−60)41.5 − 26.5
(+15−0=53)
61.0%
41.5 / 68
100.0%
+6
–   rofChade 3.0 64-bit3467+7
−7		(−60)41 − 29
(+14−2=54)
58.6%
41.0 / 70
100.0%
−8
–   Minic 3.41 64-bit3462+13
−13		(−65)4 − 4
(+0−0=8)		50.0%
4.0 / 8
100.0%
−65
–   Clarity 6.0.0 64-bit3461+15
−15		(−66)2.5 − 1.5
(+1−0=3)		62.5%
2.5 / 4
100.0%
+11
–   Caissa 1.8 64-bit3458+16
−16		(−69)16 − 14
(+3−1=26)
53.3%
16.0 / 30
100.0%
−50
–   Minic 3.31 64-bit3458+11
−11		(−69)33 − 19
(+15−1=36)
63.5%
33.0 / 52
100.0%
+13
–   Minic 3.32 64-bit3456+10
−10		(−71)22.5 − 15.5
(+7−0=31)
59.2%
22.5 / 38
100.0%
−17
–   Alexandria 4.0 64-bit3448+15
−15		(−79)14 − 10
(+5−1=18)		58.3%
14.0 / 24
100.0%
−27
–   pawn 3.0 64-bit3448+11
−11		(−79)2.5 − 1.5
(+1−0=3)		62.5%
2.5 / 4
100.0%
−1
–   Caissa 1.7 64-bit3444+15
−15		(−83)20 − 12
(+8−0=24)
62.5%
20.0 / 32
100.0%
−8
–   Texel 1.11 64-bit3443+13
−13		(−84)2 − 2
(+0−0=4)		50.0%
2.0 / 4
100.0%
−84
–   Superultra 1.0 64-bit3442+10
−10		(−85)19.5 − 12.5
(+7−0=25)
60.9%
19.5 / 32
100.0%
−18
–   Rice 8.0.0 64-bit3441+16
−16		(−86)21 − 9
(+12−0=18)
70.0%
21.0 / 30
100.0%
+43
–   Fire 9 64-bit3439+13
−13		(−88)16 − 8
(+8−0=16)		66.7%
16.0 / 24
100.0%
+16
–   Viridithas 9.0.0 64-bit3436+16
−16		(−91)18.5 − 11.5
(+8−1=21)
61.7%
18.5 / 30
100.0%
−17
–   Arasan 23.5 64-bit3433+13
−13		(−94)1 − 1
(+0−0=2)		50.0%
1.0 / 2
100.0%
−94
–   Peacekeeper 2.30 64-bit3427+16
−16		(−100)27 − 9
(+18−0=18)
75.0%
27.0 / 36
100.0%
+68
–   Arasan 23.4 64-bit3427+9
−9		(−100)3 − 1
(+2−0=2)		75.0%
3.0 / 4
100.0%
+71
–   Velvet 5.2.0 64-bit3424+14
−14		(−103)17 − 7
(+11−1=12)		70.8%
17.0 / 24
100.0%
+37
–   Clarity 5.1.0 64-bit3411+17
−17		(−116)26.5 − 9.5
(+18−1=17)
73.6%
26.5 / 36
100.0%
+45
–   Clover 3.2.1 64-bit3393+14
−14		(−134)43 − 13
(+30−0=26)
76.8%
43.0 / 56
100.0%
+49
–   Houdini 6 64-bit3392+5
−5		(−135)41 − 11
(+32−2=18)
78.8%
41.0 / 52
100.0%
+74
–   Fire 8.3 64-bit3389+15
−15		(−138)40 − 12
(+30−2=20)
76.9%
40.0 / 52
100.0%
+54
–   Caissa 1.4 64-bit3380+14
−14		(−147)37.5 − 14.5
(+23−0=29)
72.1%
37.5 / 52
100.0%
−3
–   Winter 3.0 64-bit3327+14
−14		(−200)7.5 − 0.5
(+7−0=1)		93.8%
7.5 / 8
100.0%
+194
6226 games: 610 wins, 608 losses, 5008 draws (80.4%), score: 50.0%

Rating changes by day

Rating changes with played games

Created in 2005-2013 by CCRL team
Last games added on November 16, 2024