CCRL 40/4
Downloads and Statistics
October 25, 2008
Testing summary:
Total: 352'891 games
played by 690 programs
5321 CPU days (X2 4600+)

White wins: 134'426 (38.1%)
Black wins: 106'995 (30.3%)
Draws: 111'470 (31.6%)
White score: 53.9%

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, 41'097 games:

CCRL 40/4 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 4 minutes on Athlon 64 X2 4600+ (2.4 GHz)
Computed on October 25, 2008 with Bayeselo based on 41'097 games
RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
ELO+
1Rybka 1.0 Beta 64-bit2943 (−1)+25−2479.1%−217.924.9%702 
99.5%
2Toga II 1.3.1 HT75 TEHPon2891 (+12)+30−3067.7%−128.525.8%407
99.2%
3Glaurung 2.0.1 64-bit2847 (+12)+21−2163.3%−90.632.3%773
96.1%
4Spike 1.2 Turin2825 (−1)+14−1466.3%−116.033.0%1763
99.9%
5Naum 2.0 32-bit2791 (−3)+18−1858.7%−62.130.5%1120
72.9%
6Bright 0.2c2783 (−6)+20−2055.2%−33.033.7%854
68.8%
7Alaric 7072777 (+17)+17−1756.7%−47.629.7%1134
94.3%
8Scorpio 2.0 32-bit2757 (+11)+18−1852.4%−16.433.4%1013
67.7%
9Frenzee Feb08 64-bit2748 (−19)+32−3257.3%−52.229.3%321
76.3%
10Movei 00.8.438(10 10 10)2735 (+2)+17−1752.7%−19.732.2%1149
63.8%
11E.T. Chess 13.01.082731 (−1)+18−1851.9%−13.833.1%1012
60.7%
12‑13Alfil 8.1.1 Optimized2727 (+1)+19−1951.5%−10.031.7%896
50.5%
12‑13Booot 4.14.02727 (+6)+30−3055.4%−39.130.5%371
68.4%
14Delfi 5.12718 (+5)+18−1851.6%−11.832.4%1070
54.2%
15WildCat 82716 (−10)+26−2650.9%−9.634.2%479
53.9%
16Zappa 1.1 64-bit2714 (+5)+19−1949.4%+3.932.7%897
65.5%
17‑18Colossus 2007d2709 (−2)+16−1649.0%+6.732.0%1315
51.9%
17‑18Slow Chess Blitz WV2.12709 (−2)+15−1547.8%+15.131.3%1621
54.3%
19Pro Deo 1.22707 (−12)+24−2448.4%+9.630.8%607
73.4%
20‑21SOS 5.12698 (+16)+17−1751.1%−8.229.8%1251
49.8%
20‑21Sloppy 0.2.0 64-bit2698 (−11)+28−2850.0%−0.731.1%415
53.3%
22‑24BugChess2 1.6.2 64-bit2697 (+1)+25−2550.6%−5.427.8%539
48.8%
22‑24GarboChess 2.10 64-bit2697 (−10)+29−3048.2%+13.624.4%397
49.9%
22‑24Pharaon 3.5.12697 (−3)+18−1746.0%+28.728.1%1125
73.1%
25List 5.122690 (−1)+16−1648.8%+7.434.3%1369
68.7%
26Ruffian 1.0.52685 (+6)+16−1651.1%−8.434.4%1376
68.6%
27Petir 4.392679 (+16)+17−1850.6%−2.633.0%1087
62.6%
28Pseudo 0.7c2675 (0)+17−1747.7%+17.231.5%1233
87.7%
29‑30Aristarch 4.502661 (−6)+17−1748.0%+15.330.0%1205
50.0%
29‑30Hamsters 0.62661 (+1)+16−1651.8%−12.731.3%1271
89.4%
31Fritz 5.322647 (+5)+16−1654.9%−35.932.6%1360
74.3%
32Ktulu 4.22639 (+4)+17−1755.8%−40.629.1%1182
57.4%
33‑34Anaconda 2.0.12637 (−3)+16−1652.8%−19.829.9%1366
49.8%
33‑34Crafty 21.5 PS 64-bit2637 (−5)+17−1847.1%+22.131.4%1104
52.4%
35The Baron 2.232636 (−20)+34−3537.8%+85.231.0%287
51.6%
36Jonny 2.83 32-bit2635 (−14)+17−1647.6%+16.627.6%1269
65.9%
37Thinker 4.7a2631 (−4)+15−1553.0%−21.132.1%1428
57.7%
38SmarThink 0.17a2628 (−4)+16−1652.9%−20.630.5%1274
58.2%
39Ufim 8.022626 (0)+15−1554.3%−31.728.1%1643
72.5%
40AnMon 5.602620 (+5)+16−1655.3%−38.427.9%1426
69.1%
41Trace 1.37a2614 (+1)+16−1654.2%−30.526.8%1413
62.1%
42‑43Little Goliath Evolution 3.12 (TB On)2610 (+1)+18−1852.4%−16.829.8%1023
52.6%
42‑43Yace 0.99.872610 (−1)+17−1754.0%−28.831.0%1216
99.9%
44Green Light Chess 3.002573 (−1)+17−1749.9%−0.230.4%1118
51.7%
45Tao 5.62572 (+4)+17−1751.0%−8.727.1%1145
81.1%
46‑47Arasan 10.0 64-bit2562 (+2)+17−1750.9%−7.830.0%1117
49.7%
46‑47Twisted Logic 20080404x2562 (+1)+18−1850.9%−7.823.2%1120
51.0%
48Abrok 5.02561 (+2)+16−1649.8%+1.129.1%1347
89.8%
49Amyan 1.5972547 (−11)+15−1546.1%+28.728.3%1576
65.4%
50SpiderChess 0706032543 (−5)+14−1448.3%+12.132.3%1683
52.5%
51Matacz 1.3 HT742542 (0)+18−1849.6%+3.029.8%1053
67.2%
52King of Kings 2.562537 (+1)+19−1949.0%+5.625.5%992
58.5%
53Quark 2.352534 (+7)+17−1748.5%+10.626.1%1204
53.1%
54‑55LambChop 10.992533 (+5)+17−1749.4%+5.528.5%1230
48.4%
54‑55Pepito 1.59 64-bit2533 (−9)+16−1749.7%+1.232.0%1229
61.9%
56Cerebro 3.03b2526 (−27)+41−4326.4%+172.324.8%222
59.1%
57‑58Dragon 4.62521 (+8)+16−1648.2%+11.827.3%1417
48.7%
57‑58Kiwi 0.6d2521 (+4)+17−1746.1%+27.226.1%1173
58.3%
59Delphil 1.9c2518 (+3)+27−2749.4%+5.433.3%448
63.6%
60Snitch 1.6.2 32-bit2512 (−1)+18−1845.1%+33.526.7%1060
66.3%
61Nejmet 3.072507 (−7)+15−1645.7%+30.726.5%1481
57.4%
62KnightDreamer 3.32504 (−2)+20−2147.2%+19.027.9%798
65.0%
63RomiChess P3k 64-bit2497 (−9)+27−2747.5%+20.424.5%494
73.7%
64Hermann 2.02486 (0)+24−2440.4%+75.920.7%695
54.0%
65Gosu 0.162484 (+1)+24−2450.8%−5.922.5%635
56.4%
66Amy 0.8.7b DC2481 (0)+21−2144.4%+40.723.5%800
52.8%
67Gaia 3.5 32-bit2480 (−15)+26−2553.8%−30.119.0%564
56.1%
68Comet B682478 (+2)+16−1642.6%+51.325.2%1374
55.9%
69Muse 0.899b2476 (+2)+17−1748.5%+10.025.9%1176
52.2%
70Sjeng 12.132475 (+4)+18−1940.0%+70.925.9%1055
53.3%
71Der Bringer 1.92474 (−3)+16−1646.7%+24.625.2%1331
85.0%
72Djinn 0.925x2459 (−3)+24−2448.3%+9.022.8%631
57.3%
73Homer 2.012455 (−8)+31−3053.7%−29.718.4%391
55.9%
74Crazy Bishop 00522452 (−1)+23−2341.5%+60.225.8%671
65.1%
75Amateur 2.822447 (−3)+19−1944.6%+38.522.2%990
79.2%
76‑77Arion 1.72434 (+11)+25−2550.2%−3.428.8%553
48.4%
76‑77Cheese 1.22434 (−4)+25−2547.5%+16.725.4%551
68.2%
78Phalanx XXII Reborn JA2426 (0)+22−2237.2%+92.624.0%767
64.7%
79OliThink 5.1.4 64-bit2417 (+12)+39−4046.0%+28.423.2%224
97.8%
80Asterisk 0.62364 (+2)+32−3243.7%+47.522.2%343
60.4%
81Anechka 0.082358 (+5)+27−2843.6%+48.119.2%479
56.6%
82Horizon 4.32355 (+1)+33−3439.6%+79.622.9%327
72.3%
83Sage 2.2a2341 (+3)+30−3141.0%+68.621.9%389
61.1%
84Popochin 2.72335 (+11)+36−3735.8%+106.328.0%279
62.2%
85Natwarlal 0.142327 (−21)+28−2936.6%+98.422.0%445
62.7%
86Atlas 2.202319 (+16)+41−4231.4%+131.428.6%210
67.7%
87Latista 1.502305 (0)+40−4137.9%+91.822.0%223
89.9%
88BlackBishop 0.982269 (+8)+31−3226.0%+187.419.2%421
 

Results matrix

Pure free single-CPU engines
#NameELO12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788
1Rybka 1.0 Beta 64-bit2943  22 − 10
+18−6=8
+35
19.5 − 12.5
+14−7=11
−46
22 − 10
+16−4=12
−28
27.5 − 4.5
+24−1=7
+120
21.5 − 10.5
+17−6=9
−49
24 − 8
+19−3=10
−15
 23.5 − 6.5
+18−1=11
−22
25 − 7
+21−3=8
−7
23.5 − 8.5
+20−5=7
−39
 23 − 9
+18−4=10
−78
 27.5 − 4.5
+24−1=7
+52
24 − 8
+18−2=12
−70
23.5 − 8.5
+18−3=11
−77
26.5 − 5.5
+22−1=9
+3
28 − 4
+26−2=4
+85
   27.5 − 4.5
+25−2=5
+54
28 − 4
+24−0=8
+35
28 − 4
+24−0=8
+28
28 − 4
+26−2=4
+64
25 − 7
+22−4=6
−49
30.5 − 1.5
+29−0=3
+178
    27.5 − 4.5
+25−2=5
−7
                                                      
2Toga II 1.3.1 HT75 TEHPon2891  15 − 17
+10−12=10
−63
42.5 − 25.5
+30−13=25
+13
44.5 − 21.5
+37−14=15
+27
22.5 − 12.5
+18−8=9
−4
2.5 − 1.5
+2−1=1
−8
26.5 − 8.5
+23−5=7
+63
        27 − 8
+22−3=10
+11
46.5 − 19.5
+39−12=15
−34
23 − 8
+19−4=8
−10
    25.5 − 9.5
+23−7=5
−11
                                                                
3Glaurung 2.0.1 64-bit284710 − 22
+6−18=8
−35
17 − 15
+12−10=10
+63
 59.5 − 53.5
+38−32=43
−5
16.5 − 15.5
+10−9=13
−45
21.5 − 10.5
+17−6=9
+56
36 − 28
+25−17=22
−30
21.5 − 10.5
+15−4=13
+20
 24 − 8
+20−4=8
+70
23.5 − 8.5
+20−5=7
+56
21 − 11
+13−3=16
−26
 23.5 − 8.5
+20−5=7
+45
 22.5 − 9.5
+16−3=13
−4
20.5 − 11.5
+15−6=11
−44
62 − 22
+50−10=24
+31
 21 − 11
+17−7=8
−40
   21 − 11
+16−6=10
−42
24 − 8
+19−3=10
+14
20.5 − 11.5
+16−7=9
−61
 23.5 − 8.5
+19−4=9
−8
                                                            
4Spike 1.2 Turin282512.5 − 19.5
+7−14=11
+46
25.5 − 42.5
+13−30=25
−13
53.5 − 59.5
+32−38=43
+5
 65 − 57
+43−35=44
−11
38.5 − 28.5
+23−13=31
+3
21.5 − 14.5
+15−8=13
+15
41.5 − 25.5
+23−7=37
+2
 25.5 − 14.5
+19−8=13
+1
41 − 23
+30−12=22
0
23 − 9
+19−5=8
+59
 44 − 20
+32−8=24
+16
19 − 13
+14−8=10
−48
18 − 14
+11−7=14
−72
27 − 8
+22−3=10
+75
93 − 47
+72−26=42
−3
23.5 − 11.5
+19−7=9
0
21.5 − 10.5
+15−4=13
−18
 21 − 11
+16−6=10
−21
 44.5 − 12.5
+36−4=17
+69
62.5 − 31.5
+46−15=33
−24
23.5 − 9.5
+16−2=15
−9
24 − 8
+17−1=14
+10
23 − 8
+20−5=6
+34
22 − 10
+18−6=8
−30
 25.5 − 8.5
+18−1=15
−16
 24.5 − 6.5
+21−3=7
+30
26.5 − 5.5
+23−2=7
+64
24 − 8
+19−3=10
−16
20 − 12
+17−9=6
−97
26 − 5
+22−1=8
+58
 25.5 − 7.5
+21−3=9
−4
21 − 9
+16−4=10
−71
5.5 − 0.5
+5−0=1
+151
      29 − 3
+26−0=6
+76
38.5 − 12.5
+30−4=17
−106
   1 − 0
+1−0=0
+INF
   30 − 2
+28−0=4
+107
   27.5 − 4.5
+25−2=5
−17
  30 − 2
+28−0=4
+72
                        
5Naum 2.0 32-bit279110 − 22
+4−16=12
+28
21.5 − 44.5
+14−37=15
−27
15.5 − 16.5
+9−10=13
+45
57 − 65
+35−43=44
+11
 19 − 16
+12−9=14
+20
19 − 15
+13−9=12
+23
21 − 14
+17−10=8
+38
 22.5 − 17.5
+14−9=17
−15
18 − 14
+11−7=14
−20
19 − 13
+13−7=12
−2
 16 − 16
+12−12=8
−73
 19.5 − 11.5
+14−6=11
+8
16 − 18
+11−13=10
−100
53 − 33
+40−20=26
−2
32.5 − 17.5
+22−7=21
+8
18 − 13
+14−9=8
−36
   33.5 − 23.5
+24−14=19
−39
23.5 − 10.5
+19−6=9
+32
21.5 − 12.5
+19−10=5
−2
21 − 11
+16−6=10
−3
22 − 8
+18−4=8
+51
18.5 − 13.5
+14−9=9
−78
 1 − 1
+0−0=2
−144
 1 − 0
+1−0=0
+INF
24.5 − 7.5
+23−6=3
+68
 23.5 − 6.5
+21−4=5
+67
24 − 6
+21−3=6
+72
 23.5 − 6.5
+20−3=7
+47
0.5 − 0.5
+0−0=1
−140
10.5 − 4.5
+6−0=9
−65
       1 − 0
+1−0=0
+INF
   1 − 0
+1−0=0
+INF
          27 − 5
+25−3=4
−12
1 − 0
+1−0=0
+INF
 1 − 0
+1−0=0
+INF
                     
6Bright 0.2c27834.5 − 27.5
+1−24=7
−120
12.5 − 22.5
+8−18=9
+4
10.5 − 21.5
+6−17=9
−56
28.5 − 38.5
+13−23=31
−3
16 − 19
+9−12=14
−20
 36 − 31
+24−19=24
+18
34 − 33
+24−23=20
−22
 18 − 14
+15−11=6
−1
20.5 − 11.5
+15−6=11
+43
21 − 11
+17−7=8
+56
 21 − 11
+14−4=14
+28
 22 − 10
+17−5=10
+59
42 − 24
+33−15=18
+20
46.5 − 20.5
+36−10=21
+57
 19.5 − 12.5
+14−7=11
−12
   43.5 − 23.5
+32−12=23
+12
35.5 − 27.5
+23−15=25
−52
18 − 14
+10−6=16
−62
 21.5 − 10.5
+16−5=11
+5
                                                            
7Alaric 707277710.5 − 21.5
+6−17=9
+49
1.5 − 2.5
+1−2=1
+8
28 − 36
+17−25=22
+30
14.5 − 21.5
+8−15=13
−15
15 − 19
+9−13=12
−23
31 − 36
+19−24=24
−18
 50.5 − 48.5
+36−34=29
−12
14.5 − 9.5
+10−5=9
+40
23 − 18
+17−12=12
0
13.5 − 18.5
+8−13=11
−102
18.5 − 13.5
+14−9=9
+4
16 − 7
+13−4=6
+90
40.5 − 23.5
+32−15=17
+33
18 − 13
+12−7=12
−8
18.5 − 13.5
+15−10=7
−6
49.5 − 17.5
+38−6=23
+93
18.5 − 16.5
+15−13=7
−46
 19 − 13
+16−10=6
−8
19.5 − 12.5
+15−8=9
−2
20.5 − 11.5
+16−7=9
+20
16.5 − 15.5
+14−13=5
−68
21 − 13
+16−8=10
0
20 − 12
+15−7=10
−2
21 − 11
+16−6=10
+16
38 − 26
+28−16=20
−34
21.5 − 10.5
+16−5=11
+11
17 − 15
+10−8=14
−98
     23 − 9
+21−7=4
+36
              24 − 7
+21−4=6
−22
                                      
8Scorpio 2.0 32-bit27578 − 24
+3−19=10
+15
8.5 − 26.5
+5−23=7
−63
10.5 − 21.5
+4−15=13
−20
25.5 − 41.5
+7−23=37
−2
14 − 21
+10−17=8
−38
33 − 34
+23−24=20
+22
48.5 − 50.5
+34−36=29
+12
  36 − 28
+24−16=24
+19
15.5 − 16.5
+9−10=13
−35
21.5 − 10.5
+17−6=9
+90
 18.5 − 13.5
+12−7=13
+13
 17.5 − 14.5
+12−9=11
−11
31.5 − 35.5
+19−23=25
−66
44 − 22
+37−15=14
+75
 19.5 − 12.5
+13−6=13
+9
   37 − 28
+28−19=18
−12
43.5 − 20.5
+34−11=19
+58
17.5 − 14.5
+11−8=13
−42
17 − 15
+11−9=12
−62
18 − 14
+13−9=10
−40
22 − 10
+16−4=12
+24
                    24 − 8
+20−4=8
−30
                                      
9Frenzee Feb08 64-bit2748      9.5 − 14.5
+5−10=9
−40
  12 − 12
+7−7=10
−11
12 − 14
+7−9=10
−41
 17 − 14
+15−12=4
+14
 15 − 15
+8−8=14
−33
 15 − 9
+11−5=8
+40
   21.5 − 10.5
+18−7=7
+77
18.5 − 13.5
+15−10=7
+5
18 − 14
+14−10=8
−9
      15.5 − 8.5
+10−3=11
+3
        16.5 − 9.5
+14−7=5
−22
                       13.5 − 2.5
+13−2=1
+62
                         
10Movei 00.8.438(10 10 10)27356.5 − 23.5
+1−18=11
+22
 8 − 24
+4−20=8
−70
14.5 − 25.5
+8−19=13
−1
17.5 − 22.5
+9−14=17
+15
14 − 18
+11−15=6
+1
18 − 23
+12−17=12
0
28 − 36
+16−24=24
−19
12 − 12
+7−7=10
+11
 28.5 − 35.5
+20−27=17
−43
18.5 − 13.5
+13−8=11
+43
10.5 − 13.5
+6−9=9
−43
19.5 − 12.5
+15−8=9
+58
16.5 − 13.5
+12−9=9
+15
20 − 12
+16−8=8
+66
29 − 35
+17−23=24
−52
18.5 − 21.5
+11−14=15
−50
18.5 − 13.5
+12−7=13
+23
17 − 15
+12−10=10
−18
18.5 − 13.5
+11−6=15
+13
17.5 − 14.5
+13−10=9
−3
19.5 − 12.5
+16−9=7
+40
23 − 17
+16−10=14
+12
24 − 16
+17−9=14
+20
20.5 − 11.5
+14−5=13
+40
19 − 13
+16−10=6
+8
19 − 13
+14−8=10
+4
19 − 13
+15−9=8
−5
22.5 − 9.5