CCRL 40/40
Downloads and Statistics
April 11, 2008
Testing summary:
Total: 114'872 games
played by 449 programs
16375 CPU days (X2 4600+)

White wins: 41'478 (36.1%)
Black wins: 31'357 (27.3%)
Draws: 42'037 (36.6%)
White score: 54.4%

Pure list for free single-CPU engines

Pure database download

To save space, pure database has all moves stripped out, it contains PGN header and results only. This pure database is useful only for rating calculation or similar analysis, it does not have actual games, only the results.

Download pure database, 4'839 games:0.01 MB

CCRL 40/40 Rating List — Pure free single-CPU engines

Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz)
Computed on April 11, 2008 with Bayeselo based on 4'839 games
RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
ELO+−
1Rybka 1.0 64-bit2928 (+8)+31−3072.7%−155.634.0%350 
99.5%
2Toga II 1.2.1a2875 (+14)+26−2664.6%−102.233.5%468
95.4%
3Spike 1.2 Turin2847 (−5)+22−2262.1%−80.638.1%641
89.5%
4Naum 2.0 32-bit2826 (+24)+26−2558.9%−57.138.0%453
98.5%
5Glaurung 1.2.1 64-bit2784 (+13)+28−2849.3%+4.636.8%378
60.3%
6Scorpio 1.912778 (+13)+34−3448.8%+5.734.1%252
96.3%
7Slow Chess Blitz WV2.12741 (0)+20−2050.6%−4.137.6%721
60.5%
8Movei 00.8.4382735 (−9)+35−3551.7%−9.537.8%238
65.2%
9WildCat 72727 (−2)+21−2147.7%+17.737.7%676
52.1%
10Zappa 1.1 64-bit2726 (−7)+27−2744.6%+39.735.7%415
52.5%
11List 5.122725 (+4)+24−2445.2%+32.235.2%511
72.6%
12Pro Deo 1.22714 (−11)+26−2649.3%+3.629.2%449
60.6%
13Pharaon 3.5.12709 (−1)+22−2245.1%+34.433.2%642
60.6%
14Ruffian 1.0.52705 (−6)+23−2344.4%+36.042.0%564
74.6%
15Pseudo 0.7c2693 (+2)+26−2650.1%−2.537.1%434
52.6%
16Delfi 5.02691 (−12)+26−2647.2%+17.236.6%426
59.7%
17Aristarch 4.502687 (−13)+23−2348.8%+8.236.3%542
89.1%
18‑19Colossus 2006f2662 (+3)+32−3245.4%+32.130.7%296
50.5%
18‑19Jonny 2.83 32-bit2662 (−16)+27−2744.9%+34.628.7%432
64.4%
20SOS 5.12654 (−11)+31−3241.7%+53.437.1%302
83.8%
21AnMon 5.602629 (+12)+36−3740.0%+67.930.4%230
82.4%
22Little Goliath Evolution 3.122605 (−4)+34−3535.1%+101.234.5%258
 

Results matrix

Pure free single-CPU engines
#NameELO1
Rybka
2
Toga
3
Spike
4
Naum
5
Glaur
6
Scorp
7
Slow
8
Movei
9
WildC
10
Zappa
11
List
12
Pro D
13
Phara
14
Ruffi
15
Pseud
16
Delfi
17
Arist
18
Colos
19
Jonny
20
SOS 5
21
AnMon
22
Littl
1Rybka 1.0 64-bit2928 25.5 − 16.5
+16−7=19
+11		27 − 15
+17−5=20
+4		21.5 − 10.5
+17−6=9
+14		32.5 − 9.5
+27−4=11
+54		 25.5 − 6.5
+19−0=13
+4		 26.5 − 5.5
+23−2=7
+49		23 − 9
+18−4=10
−52		21 − 11
+15−5=12
−100		 27 − 5
+24−2=6
+51		25 − 7
+19−1=12
−41		        
2Toga II 1.2.1a287516.5 − 25.5
+7−16=19
−11		 39 − 42
+22−25=34
−40		20 − 12
+14−6=12
+32		24.5 − 17.5
+16−9=17
−38		23.5 − 9.5
+18−4=11
+42		29 − 8
+24−3=10
+72		 26 − 9
+21−4=10
+23		24 − 7
+21−4=6
+62		22 − 10
+17−5=10
−20		1 − 1
+1−1=0
−161		23.5 − 8.5
+20−5=7
+5		25.5 − 6.5
+21−2=9
+41		2 − 1
+1−0=2
−86		4 − 2
+3−1=2
−73		  1 − 0
+1−0=0
+INF		9 − 3
+7−1=4
−48		 12 − 3
+10−1=4
−52
3Spike 1.2 Turin284715 − 27
+5−17=20
−4		42 − 39
+25−22=34
+40		 32.5 − 29.5
+21−18=23
−4		23 − 19
+13−9=20
−36		30 − 14
+22−6=16
+46		25.5 − 19.5
+15−9=21
−65		5.5 − 2.5
+4−1=3
+10		41 − 16
+30−5=22
+25		21.5 − 10.5
+19−8=5
+13		42.5 − 19.5
+30−7=25
−5		15 − 7
+11−3=8
−12		27 − 13
+20−6=14
−22		27 − 9
+22−4=10
+35		6 − 4
+4−2=4
−95		6 − 2
+4−0=4
−6		1.5 − 0.5
+1−0=1
−17		7.5 − 2.5
+6−1=3
−14		6.5 − 1.5
+5−0=3
+21		8 − 3
+6−1=4
−49		9.5 − 3.5
+8−2=3
−47		5.5 − 0.5
+5−0=1
+117
4Naum 2.0 32-bit282610.5 − 21.5
+6−17=9
−14		12 − 20
+6−14=12
−32		29.5 − 32.5
+18−21=23
+4		 19.5 − 10.5
+14−5=11
+58		18 − 13
+13−8=10
+7		24 − 13
+16−5=16
+9		 31.5 − 16.5
+22−7=19
0		17.5 − 14.5
+11−8=13
−71		22.5 − 9.5
+17−4=11
+34		11 − 5
+9−3=4
+21		30.5 − 12.5
+21−3=19
+13		21 − 11
+13−3=16
−28		2.5 − 1.5
+1−0=3
−65		2.5 − 0.5
+2−0=1
+108		1.5 − 0.5
+1−0=1
+17		5.5 − 1.5
+5−1=1
+70		1.5 − 1.5
+1−1=1
−178		2 − 1
+1−0=2
−89		2 − 0
+2−0=0
+INF		2 − 0
+2−0=0
+INF
5Glaurung 1.2.1 64-bit27849.5 − 32.5
+4−27=11
−54		17.5 − 24.5
+9−16=17
+38		19 − 23
+9−13=20
+36		10.5 − 19.5
+5−14=11
−58		 15 − 15
+10−10=10
−6		16.5 − 15.5
+11−10=11
−36		 19.5 − 12.5
+15−8=9
+19		17.5 − 14.5
+12−9=11
−25		21.5 − 10.5
+15−4=13
+52		 21 − 11
+15−5=12
+25		19 − 13
+12−6=14
−21		        
6Scorpio 1.912778 9.5 − 23.5
+4−18=11
−42		14 − 30
+6−22=16
−46		13 − 18
+8−13=10
−7		15 − 15
+10−10=10
+6		 17.5 − 20.5
+11−14=13
−61		25.5 − 12.5
+18−5=15
+68		4.5 − 1.5
+4−1=1
+143		  4 − 2
+3−1=2
+54		2.5 − 1.5
+2−1=1
+12		 3.5 − 2.5
+2−1=3
−33		2 − 0
+2−0=0
+INF		 1.5 − 0.5
+1−0=1
+40		4 − 0
+4−0=0
+INF		5 − 1
+4−0=2
+105		 1.5 − 0.5
+1−0=1
−16
7Slow Chess Blitz WV2.127416.5 − 25.5
+0−19=13
−4		8 − 29
+3−24=10
−72		19.5 − 25.5
+9−15=21
+65		13 − 24
+5−16=16
−9		15.5 − 16.5
+10−11=11
+36		20.5 − 17.5
+14−11=13
+61		 18.5 − 22.5
+11−15=15
−33		23.5 − 22.5
+14−13=19
−6		17.5 − 14.5
+10−7=15
+13		16.5 − 15.5
+10−9=13
−5		22.5 − 15.5
+17−10=11
+32		21 − 25
+13−17=16
−57		16 − 16
+7−7=18
−36		7.5 − 5.5
+4−2=7
−9		24.5 − 16.5
+17−9=15
+7		24 − 19
+16−11=16
−17		3 − 1
+3−1=0
+146		27 − 14
+22−9=10
+36		12 − 8
+9−5=6
−23		24.5 − 13.5
+18−7=13
−13		23.5 − 9.5
+17−3=13
+1
8Movei 00.8.4382735  2.5 − 5.5
+1−4=3
−10		  12.5 − 25.5
+5−18=15
−68		22.5 − 18.5
+15−11=15
+33		 18 − 17
+10−9=16
+1		  1.5 − 1.5
+1−1=1
−21		22.5 − 14.5
+17−9=11
+48		 17 − 17
+10−10=14
−42		 23 − 12
+17−6=12
+55		 0.5 − 1.5
+0−1=1
−214		1 − 1
+0−0=2
−81		2 − 1
+2−1=0
+26		 
9WildCat 727275.5 − 26.5
+2−23=7
−49		9 − 26
+4−21=10
−23		16 − 41
+5−30=22
−25		16.5 − 31.5
+7−22=19
0		12.5 − 19.5
+8−15=9
−19		1.5 − 4.5
+1−4=1
−143		22.5 − 23.5
+13−14=19
+6		17 − 18
+9−10=16
−1		 19 − 14
+10−5=18
+41		18 − 16
+11−9=14
+15		34.5 − 31.5
+25−22=19
0		20.5 − 21.5
+15−16=11
−28		18.5 − 13.5
+11−6=15
+27		4.5 − 0.5
+4−0=1
+295		19.5 − 14.5
+12−7=15
+10		16 − 20
+8−12=16
−71		23 − 9
+19−5=8
+94		2.5 − 1.5
+1−0=3
−5		16.5 − 7.5
+10−1=13
+33		8 − 4
+5−1=6
+3		21.5 − 9.5
+15−3=13
−2
10Zappa 1.1 64-bit27269 − 23
+4−18=10
+52		7 − 24
+4−21=6
−62		10.5 − 21.5
+8−19=5
−13		14.5 − 17.5
+8−11=13
+71		14.5 − 17.5
+9−12=11
+25		 14.5 − 17.5
+7−10=15
−13		 14 − 19
+5−10=18
−41		 15.5 − 16.5
+9−10=13
−8		17 − 13
+14−10=6
+35		17.5 − 14.5
+11−8=13
+10		16.5 − 15.5
+9−8=15
−12		 18 − 14
+12−8=12
+5		16.5 − 15.5
+11−10=11
−28		  0 − 1
+0−1=0
−INF		  
11List 5.12272511 − 21
+5−15=12
+100		10 − 22
+5−17=10
+20		19.5 − 42.5
+7−30=25
+5		9.5 − 22.5
+4−17=11
−34		10.5 − 21.5
+4−15=13
−52		 15.5 − 16.5
+9−10=13
+5		 16 − 18
+9−11=14
−15		16.5 − 15.5
+10−9=13
+8		 11.5 − 18.5
+9−16=5
−101		14 − 18
+11−15=6
−63		20 − 12
+12−4=16
+51		 16 − 16
+11−11=10
−34		17 − 15
+9−7=16
−20		1 − 0
+1−0=0
+INF		24.5 − 7.5
+21−4=7
+133		18.5 − 13.5
+14−9=9
−17		  
12Pro Deo 1.22714 1 − 1
+1−1=0
+161		7 − 15
+3−11=8
+12		5 − 11
+3−9=4
−21		 2 − 4
+1−3=2
−54		15.5 − 22.5
+10−17=11
−32		1.5 − 1.5
+1−1=1
+21		31.5 − 34.5
+22−25=19
0		13 − 17
+10−14=6
−35		18.5 − 11.5
+16−9=5
+101		 19 − 16
+13−10=12
+22		14.5 − 15.5
+7−8=15
−19		22 − 14
+16−8=12
+54		14 − 18
+8−12=12
−65		25 − 20
+20−15=10
+17		0 − 1
+0−1=0
−INF		17.5 − 16.5
+15−14=5
−41		13 − 8
+9−4=8
+16		 1.5 − 0.5
+1−0=1
+33
13Pharaon 3.5.127095 − 27
+2−24=6
−51		8.5 − 23.5
+5−20=7
−5		13 − 27
+6−20=14
+22		12.5 − 30.5
+3−21=19
−13		11 − 21
+5−15=12
−25		1.5 − 2.5
+1−2=1
−12		25 − 21
+17−13=16
+57		14.5 − 22.5
+9−17=11
−48		21.5 − 20.5
+16−15=11
+28		14.5 − 17.5
+8−11=13
−10		18 − 14
+15−11=6
+63		16 − 19
+10−13=12
−22		 14 − 18
+8−12=12
−44		18.5 − 21.5
+11−14=15
−39		19 − 18
+13−12=12
−8		23.5 − 14.5
+15−6=17
+51		7 − 3
+5−1=4
+79		23 − 19
+17−13=12
−16		3 − 1
+3−1=0
+170		10.5 − 5.5
+8−3=5
+21		10 − 6
+6−2=8
−30
14Ruffian 1.0.527057 − 25
+1−19=12
+41		6.5 − 25.5
+2−21=9
−41		9 − 27
+4−22=10
−35		11 − 21
+3−13=16
+28		13 − 19
+6−12=14
+21		 16 − 16
+7−7=18
+36		 13.5 − 18.5
+6−11=15
−27		15.5 − 16.5
+8−9=15
+12		12 − 20
+4−12=16
−51		15.5 − 14.5
+8−7=15
+19		18 − 14
+12−8=12
+44		 17 − 14
+10−7=14
+15		15.5 − 16.5
+8−9=15
−24		16.5 − 19.5
+8−11=17
−42		18.5 − 13.5
+14−9=9
+12		20 − 16
+14−10=12
−4		12.5 − 9.5
+8−5=9
−7		7 − 4
+4−1=6
+3		6.5 − 3.5
+5−2=3
−3
15Pseudo 0.7c2693 1 − 2
+0−1=2
+86		4 − 6
+2−4=4
+95		1.5 − 2.5
+0−1=3
+65		 2.5 − 3.5
+1−2=3
+33		5.5 − 7.5
+2−4=7
+9		17 − 17
+10−10=14
+42		0.5 − 4.5
+0−4=1
−295		  14 − 22
+8−16=12
−54		21.5 − 18.5
+14−11=15
+39		14 − 17
+7−10=14
−15		 25.5 − 12.5
+18−5=15
+106		22 − 17
+16−11=12
+36		17.5 − 16.5
+11−10=13
−21		23.5 − 25.5
+16−18=15
−45		23.5 − 22.5
+14−13=19
−30		9 − 12
+7−10=4
−120		15 − 10
+11−6=8
−18
16Delfi 5.02691 2 − 4
+1−3=2
+73		2 − 6
+0−4=4
+6		0.5 − 2.5
+0−2=1
−108		 0 − 2
+0−2=0
−INF		16.5 − 24.5
+9−17=15
−7		 14.5 − 19.5
+7−12=15
−10		14 − 18
+8−12=12
−5		16 − 16
+11−11=10
+34		18 − 14
+12−8=12
+65		18 − 19
+12−13=12
+8		16.5 − 15.5
+9−8=15
+24		12.5 − 25.5
+5−18=15
−106		 22.5 − 15.5
+16−9=13
+59		20.5 − 21.5
+13−14=15
−36		20.5 − 18.5
+15−13=11
−9		3.5 − 2.5
+2−1=3
+15		1.5 − 0.5
+1−0=1
+94		2 − 0
+2−0=0
+INF
17Aristarch 4.502687  0.5 − 1.5
+0−1=1
+17		0.5 − 1.5
+0−1=1
−17		  19 − 24
+11−16=16
+17		12 − 23
+6−17=12
−55		20 − 16
+12−8=16
+71		15.5 − 16.5
+10−11=11
+28		15 − 17
+7−9=16
+20		20 − 25
+15−20=10
−17		14.5 − 23.5
+6−15=17
−51		19.5 − 16.5
+11−8=17
+42		17 − 22
+11−16=12
−36		15.5 − 22.5
+9−16=13
−59		 20.5 − 17.5
+14−11=13
0		22 − 17
+15−10=14
+14		13 − 9
+9−5=8
+23		20.5 − 14.5
+15−9=11
−2		19.5 − 10.5
+15−6=9
+21
18Colossus 2006f2662  2.5 − 7.5
+1−6=3
+14		1.5 − 5.5
+1−5=1
−70		 0.5 − 1.5
+0−1=1
−40		1 − 3
+1−3=0
−146		 9 − 23
+5−19=8
−94		 0 − 1
+0−1=0
−INF		1 − 0
+1−0=0
+INF		3 − 7
+1−5=4
−79		13.5 − 18.5
+9−14=9
−12		16.5 − 17.5
+10−11=13
+21		21.5 − 20.5
+14−13=15
+36		17.5 − 20.5
+11−14=13
0		 20.5 − 18.5
+13−11=15
+14		10.5 − 7.5
+9−6=3
+56		6.5 − 6.5
+5−5=3
−36		9.5 − 3.5
+8−2=3
+112
19Jonny 2.83 32-bit2662 0 − 1
+0−1=0
−INF		1.5 − 6.5
+0−5=3
−21		1.5 − 1.5
+1−1=1
+178		 0 − 4
+0−4=0
−INF		14 − 27
+9−22=10
−36		1.5 − 0.5
+1−0=1
+214		1.5 − 2.5
+0−1=3
+5		 7.5 − 24.5
+4−21=7
−133		16.5 − 17.5
+14−15=5
+41		19 − 23
+13−17=12
+16		16 − 20
+10−14=12
+4		25.5 − 23.5
+18−16=15
+45		18.5 − 20.5
+13−15=11
+9		17 − 22
+10−15=14
−14		18.5 − 20.5
+11−13=15
−14		 7.5 − 4.5
+5−2=5
+67		10 − 11
+8−9=4
−51		18 − 8
+15−5=6
+82
20SOS 5.12654 3 − 9
+1−7=4
+48		3 − 8
+1−6=4
+49		1 − 2
+0−1=2
+89		 1 − 5
+0−4=2
−105		8 − 12
+5−9=6
+23		1 − 1
+0−0=2
+81		7.5 − 16.5
+1−10=13
−33		1 − 0
+1−0=0
+INF		13.5 − 18.5
+9−14=9
+17		8 − 13
+4−9=8
−16		1 − 3
+1−3=0
−170		9.5 − 12.5
+5−8=9
+7		22.5 − 23.5
+13−14=19
+30		2.5 − 3.5
+1−2=3
−15		9 − 13
+5−9=8
−23		7.5 − 10.5
+6−9=3
−56		4.5 − 7.5
+2−5=5
−67		 11.5 − 7.5
+9−5=5
+48		11 − 10
+6−5=10
−35
21AnMon 5.602629  3.5 − 9.5
+2−8=3
+47		0 − 2
+0−2=0
−INF		  13.5 − 24.5
+7−18=13
+13		1 − 2
+1−2=0
−26		4 − 8
+1−5=6
−3		   5.5 − 10.5
+3−8=5
−21		4 − 7
+1−4=6
−3		12 − 9
+10−7=4
+120		0.5 − 1.5
+0−1=1
−94		14.5 − 20.5
+9−15=11
+2		6.5 − 6.5
+5−5=3
+36		11 − 10
+9−8=4
+51		7.5 − 11.5
+5−9=5
−48		 8.5 − 15.5
+4−11=9
−113
22Little Goliath Evolution 3.122605 3 − 12
+1−10=4
+52		0.5 − 5.5
+0−5=1
−117		0 − 2
+0−2=0
−INF		 0.5 − 1.5
+0−1=1
+16		9.5 − 23.5
+3−17=13
−1		 9.5 − 21.5
+3−15=13
+2		  0.5 − 1.5
+0−1=1
−33		6 − 10
+2−6=8
+30		3.5 − 6.5
+2−5=3
+3		10 − 15
+6−11=8
+18		0 − 2
+0−2=0
−INF		10.5 − 19.5
+6−15=9
−21		3.5 − 9.5
+2−8=3
−112		8 − 18
+5−15=6
−82		10 − 11
+5−6=10
+35		15.5 − 8.5
+11−4=9
+113		 
Performance color legend:
(Only pairs with at least 30 games)
-120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120

History of "pure" testing for free single-CPU engines

LOS matrix

Pure free single-CPU engines
#NameELO1
Ryb
2
Tog
3
Spi
4
Nau
5
Gla
6
Sco
7
Slo
8
Mov
9
Wil
10
Zap
11
Lis
12
Pro
13
Pha
14
Ruf
15
Pse
16
Del
17
Ari
18
Col
19
Jon
20
SOS
21
AnM
22
Lit
1Rybka 1.0 64-bit2928 99.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Toga II 1.2.1a28750.5 95.499.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Spike 1.2 Turin28470.04.6 89.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Naum 2.0 32-bit28260.00.410.5 98.598.6100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
5Glaurung 1.2.1 64-bit27840.00.00.01.5 60.399.197.799.999.899.9100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
6Scorpio 1.9127780.00.00.01.439.7 96.395.999.198.699.099.799.999.9100.0100.0100.0100.0100.0100.0100.0100.0
7Slow Chess Blitz WV2.127410.00.00.00.00.93.7 60.582.280.083.394.298.198.999.799.8100.0100.0100.0100.0100.0100.0
8Movei 00.8.43827350.00.00.00.02.34.139.5 65.265.067.482.389.291.497.196.998.799.899.999.9100.0100.0
9WildCat 727270.00.00.00.00.10.917.834.8 52.155.078.387.692.097.297.999.399.9100.0100.0100.0100.0
10Zappa 1.1 64-bit27260.00.00.00.00.21.420.035.047.9 52.573.783.088.294.996.298.299.899.999.9100.0100.0
11List 5.1227250.00.00.00.00.11.016.732.645.047.5 72.682.588.295.296.498.499.8100.0100.0100.0100.0
12Pro Deo 1.227140.00.00.00.00.00.35.817.721.726.327.4 60.669.486.587.993.199.099.699.8100.0100.0
13Pharaon 3.5.127090.00.00.00.00.00.11.910.812.417.017.439.4 60.682.284.090.898.899.699.7100.0100.0
14Ruffian 1.0.527050.00.00.00.00.00.11.18.68.011.811.830.639.4 74.677.085.298.299.199.4100.0100.0
15Pseudo 0.7c26930.00.00.00.00.00.00.32.92.85.14.813.517.825.4 52.662.492.894.997.199.7100.0
16Delfi 5.026910.00.00.00.00.00.00.23.12.13.83.612.116.023.047.4 59.792.094.095.999.5100.0
17Aristarch 4.5026870.00.00.00.00.00.00.01.30.71.81.66.99.214.837.640.3 89.191.895.099.5100.0
18Colossus 2006f26620.00.00.00.00.00.00.00.20.10.20.21.01.21.87.28.010.9 50.563.890.198.9
19Jonny 2.83 32-bit26620.00.00.00.00.00.00.00.10.00.10.00.40.40.95.16.08.249.5 64.491.699.4
20SOS 5.126540.00.00.00.00.00.00.00.10.00.10.00.20.30.62.94.15.036.235.6 83.897.8
21AnMon 5.6026290.00.00.00.00.00.00.00.00.00.00.00.00.00.00.30.50.59.98.416.2 82.4
22Little Goliath Evolution 3.1226050.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.01.10.62.217.6 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100
Created in 2005-2008 by CCRL team
Last games added on April 11, 2008