CCRL 40/4
Downloads and Statistics
January 29, 2010
Testing summary:
Total: 521'483 games
played by 779 programs
8111 CPU days (X2 4600+)

White wins: 201'250 (38.6%)
Black wins: 158'946 (30.5%)
Draws: 161'287 (30.9%)
White score: 54.1%

Rating list

CCRL 40/4 Rating List — All engines (best versions only) (Quote)

Ponder off, General book (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 January 29, 2010 with Bayeselo based on 521'483 games
RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
ELO+−
1Rybka 3 64-bit 4CPU3263+10−1079.4%−221.928.8%4412 
100.0%
2Stockfish 1.6s JA 64-bit 4CPU3187+14−1468.1%−126.737.3%1793
100.0%
3Naum 4 64-bit 4CPU3154+11−1068.7%−135.735.9%3487
92.2%
4Deep Shredder 12 64-bit OA On 4CPU3143+14−1461.1%−80.136.3%1897
100.0%
5Spark 0.3 64-bit 4CPU3063+14−1348.7%+7.441.4%1845
97.3%
6‑7Thinker 5.4c Inert 64-bit 4CPU3046+11−1151.5%−14.336.1%2980
52.6%
6‑7Zappa Mexico II 64-bit 4CPU3046+10−1052.0%−17.239.7%3606
95.4%
8Hiarcs 12.1 4CPU3034+11−1151.0%−9.834.4%3292
60.5%
9Deep Sjeng WC2008 64-bit 4CPU3032+10−1051.2%−9.634.2%3602
94.9%
10Deep Fritz 10.1 4CPU3017+15−1550.7%−5.932.1%1496
94.3%
11Bright 0.4a 4CPU3002+11−1242.2%+51.334.0%2789
65.7%
12Toga II 1.4 beta5c 4CPU2999+11−1143.5%+44.537.7%3094
79.8%
13Doch 1.3.4 64-bit2988+21−2154.7%−31.537.5%738
94.3%
14Loop M1-T 64-bit 4CPU2970+8−843.9%+40.437.0%5899
100.0%
15Onno 1.1.1 64-bit2942+13−1353.2%−24.438.6%2215
97.8%
16Deep Junior 10 4CPU2925+10−1146.0%+27.932.4%3356
100.0%
17Ktulu 9.02878+12−1246.5%+24.532.3%2676
80.9%
18Twisted Logic 20090922 64-bit2869+18−1847.4%+18.532.6%1109
78.8%
19Chessmaster 11 4CPU2857+22−2259.2%−63.532.5%699
78.8%
20SmarThink 1.20 64-bit2846+15−1536.8%+91.834.4%1539
76.5%
21Crafty 23.0 64-bit 4CPU2838+16−1628.8%+152.028.9%1535
89.9%
22Spike 1.2 Turin2827+5−541.8%+58.632.9%20400
67.2%
23Scorpio 2.0 32-bit 4CPU2822+18−1830.9%+141.130.3%1204
61.2%
24Chess Tiger 2007.12819+8−847.7%+17.335.4%5299
94.6%
25Delfi 5.4 2CPU2806+15−1542.4%+59.332.8%1726
81.0%
26‑27Bison 9.8 32-bit2793+25−2547.6%+16.923.5%591
48.1%
26‑27Deep Frenzee May07 64-bit 2CPU2793+16−1640.5%+74.428.2%1512
66.0%
28Pharaon 3.5.1 4CPU2786+33−3440.5%+63.331.8%305
70.2%
29BugChess2 1.6.4 64-bit2774+24−2451.4%−8.430.9%573
57.0%
30Booot 4.15.02772+15−1547.8%+16.933.7%1659
73.2%
31Alaric 706172762+25−2551.6%−8.331.8%547
82.8%
32Colossus 2008b2749+13−1345.0%+36.029.9%2188
80.4%
33‑34Chronos 1.9.72739+17−1749.7%+2.533.4%1175
52.2%
33‑34E.T. Chess 13.01.082739+10−1047.0%+23.832.2%3647
56.6%
35Sloppy 0.2.2 64-bit2737+19−1947.5%+16.636.0%928
61.6%
36WildCat 82734+13−1344.1%+46.530.3%2406
51.8%
37Movei 00.8.438 (10 10 10)2733+10−1045.3%+36.730.2%3721
95.5%
38‑39Gandalf 62720+12−1239.4%+81.427.7%2528
49.2%
38‑39Pro Deo 1.22720+12−1242.3%+58.427.4%2577
55.0%
40Ruffian 2.1.02719+15−1545.1%+36.929.8%1703
67.3%
41Alfil 8.1.1 Optimized2715+12−1242.7%+57.228.3%2752
55.7%
42Slow Chess Blitz WV2.12714+7−741.3%+64.129.0%8345
79.8%
43GarboChess 2.10 64-bit2707+14−1440.4%+76.325.8%2016
57.1%
44Lemming 0.34 64-bit2705+16−1644.9%+36.730.1%1370
96.2%
45‑46Chiron 0.8.72686+14−1447.8%+15.126.8%1799
48.9%
45‑46Hamsters 0.7 2CPU2686+20−2039.0%+76.335.7%862
72.2%
47SOS 5.12679+10−1047.6%+16.828.6%3478
68.0%
48Pseudo 0.7c2676+10−1150.1%−3.529.9%3499
61.1%
49Critter 0.402673+18−1856.1%−69.126.8%1151
62.5%
50The Baron 2.23 64-bit2669+17−1746.1%+26.128.7%1313
56.4%
51Aristarch 4.502667+11−1147.1%+22.627.3%3353
53.9%
52Arasan 11.3 64-bit 4CPU2666+22−2312.5%+339.213.0%1386
53.4%
53‑54Deuterium 09.01.26.4922664+35−3467.3%−138.921.6%366
50.4%
53‑54Petir 4.392664+12−1248.0%+15.332.6%2352
90.4%
55Jonny 2.83 32-bit2653+12−1247.4%+19.326.8%2427
70.6%
56Hermann 2.4 64-bit 2CPU2647+17−1755.4%−43.823.8%1367
60.7%
57Amyan 1.622644+19−1856.3%−71.126.7%1118
60.3%
58Anaconda 2.0.12641+12−1251.0%−6.830.6%2480
75.3%
59Ufim 8.022636+9−953.1%−24.828.3%4591
52.6%
60BBChess 1.3b 64-bit 2CPU2635+18−1857.1%−57.527.7%1205
64.4%
61AnMon 5.752631+16−1650.1%−2.325.3%1378
76.9%
62DanaSah 4.242617+33−3344.4%+37.826.6%312
62.0%
63‑64Little Goliath Evolution 3.12 (TB On)2611+16−1650.3%−2.129.2%1375
48.8%
63‑64Trace 1.37a2611+11−1149.4%+4.927.8%3234
61.0%
65Yace 0.99.872609+14−1451.0%−7.829.7%1805
87.8%
66Pepito 1.59 32-bit2596+17−1751.8%−12.231.5%1216
89.6%
67Cerebro 3.01c2579+20−2044.0%+44.325.9%931
61.1%
68‑69Bruja 1.9 64-bit JA No-int-book2576+16−1649.8%+1.126.8%1311
48.1%
68‑69Green Light Chess 3.002576+15−1548.9%+7.031.3%1534
58.5%
70Tao 5.62574+14−1448.6%+8.425.4%1773
55.9%
71Gaviota 0.74.12 64-bit 2CPU2572+19−1957.5%−58.617.7%1134
87.9%
72Abrok 5.02558+14−1348.4%+8.827.7%2003
81.5%
73Matacz 1.3 HT742549+16−1650.2%−1.828.3%1309
55.4%
74SpiderChess 0706032548+10−1048.2%+12.631.5%3570
71.0%
75King of Kings 2.562542+17−1750.1%−1.824.7%1248
70.6%
76LambChop 10.992537+13−1350.5%−4.127.6%2345
77.9%
77Quark 2.352529+14−1449.6%+4.024.9%1961
84.2%
78Nejmet 3.072520+12−1248.7%+9.226.9%2658
58.8%
79‑80NanoSzachy 3.52518+19−1957.1%−66.423.8%1103
49.9%
79‑80Snitch 1.6.2 32-bit2518+14−1449.2%+5.026.0%1864
53.0%
81‑82Dragon 4.62517+12−1246.6%+26.525.8%2634
50.7%
81‑82Patzer 3.80 2CPU2517+19−1951.8%−16.024.6%1012
53.9%
83Delphil 1.9c2516+18−1847.3%+20.529.8%1050
55.3%
84Kiwi 0.6d2514+15−1546.1%+27.324.9%1608
56.5%
85RomiChess P3k 64-bit2512+16−1749.7%+3.426.2%1364
66.7%
86‑87KnightDreamer 3.32507+17−1751.3%−9.928.0%1308
50.3%
86‑87LittleThought 1.04 64-bit2507+18−1854.2%−36.118.1%1213
59.7%
88Gaia 3.5 32-bit2504+16−1654.1%−35.319.7%1582
64.4%
89Francesca MAD 0.13 Nobook2500+18−1850.7%−5.424.8%1148
52.9%
90Comet B502499+21−2144.9%+38.124.3%824
65.6%
91Gosu 0.162493+14−1453.0%−23.921.1%1954
63.0%
92Amy 0.8.7b DC2490+15−1651.4%−13.021.6%1569
78.8%
93‑94Leila 0.53h2481+16−1657.4%−64.920.2%1661
52.0%
93‑94Muse 0.899b2481+11−1253.4%−28.723.9%2930
76.0%
95‑97Der Bringer 1.92475+11−1152.8%−25.223.6%3239
49.9%
95‑97Dirty ACCA 32475+16−1651.6%−19.625.2%1505
50.2%
95‑97Djinn 0.925x2475+11−1149.9%−2.623.7%2962
56.9%
98Crazy Bishop 00522474+15−1557.7%−66.222.8%1727
60.0%
99Homer 2.012470+25−2554.6%−36.719.5%606
73.1%
100Queen 3.092456+36−3648.5%+11.133.1%260
50.6%
101‑102Betsy 6.51 Nobook2455+16−1656.4%−54.022.6%1613
51.6%
101‑102Glass 1.32455+17−1754.1%−38.922.0%1357
64.3%
103Amateur 2.822451+11−1153.1%−28.720.6%3229
70.3%
104Cheese 1.22445+19−1943.9%+43.325.2%993
61.2%
105Phalanx XXII Reborn JA2441+14−1455.7%−53.119.6%1980
87.4%
106Thor's Hammer 2.28 32-bit2430+15−1558.6%−73.317.5%1909
76.9%
107Arion 1.72423+11−1148.5%+9.125.5%3066
67.6%
108Chezzz 1.0.32418+16−1659.0%−75.319.2%1664
62.8%
109OliThink 5.1.4 64-bit2412+36−3743.6%+46.622.4%272
66.9%
110Averno 0.812403+15−1556.7%−58.522.8%1843
58.5%
111KnightX 1.922401+13−1355.0%−45.420.0%2544
54.1%
112Aice 0.99.22399+41−4239.7%+77.123.4%214
51.1%
113Popochin 3.22398+16−1643.8%+39.325.7%1406
65.8%
114Resp 0.19 64-bit JA Nobook2393+15−1553.8%−36.420.8%1770
76.7%
115Scidlet 3.61 x64 JA2385+15−1555.4%−48.420.7%1723
54.6%
116GreKo 5.32383+40−4144.1%+37.121.5%228
50.9%
117Eeyore 1.482382+14−1453.4%−30.522.0%2026
69.5%
118GNU Chess 5.07 64-bit JA Nobook2376+20−2055.3%−44.118.1%1024
52.8%
119Ayito 0.2.9942375+17−1754.8%−40.318.4%1448
68.2%
120Asterisk 0.62368+25−2544.2%+41.720.5%595
52.0%
121EXchess 5.01 64-bit2367+15−1553.5%−32.422.7%1760
62.1%
122Natwarlal 0.142363+16−1643.0%+46.619.9%1515
67.7%
123Horizon 4.32357+22−2247.9%+13.619.0%847
67.7%
124Anechka 0.082351+16−1645.7%+27.819.5%1504
56.7%
125Doctor 3.02348+18−1854.7%−42.226.4%1149
56.4%
126Esc 1.162346+16−1656.8%−54.521.3%1598
55.2%
127Butcher 1.60n1 64-bit2344+37−3764.8%−137.313.9%330
58.1%
128Sage 2.2a2339+25−2548.1%+8.021.4%639
52.1%
129Zeus 1.272338+44−4359.0%−84.820.8%216
59.6%
130Ant 2006-F2332+17−1748.3%+12.021.9%1323
97.4%
131Dorky 3.482309+16−1653.4%−29.619.1%1567
57.0%
132CyberPagno 2.12307+17−1752.5%−24.119.0%1472
62.3%
133OBender 3.2.x2302+25−2639.9%+76.418.2%606
77.3%
134Madeleine 0.22291+15−1549.7%−2.120.0%1741
55.4%
135Latista (Sinobyl) 1.52289+16−1648.2%+13.223.1%1554
72.2%
136Atlas 2.202283+15−1548.4%+9.319.9%1686
77.9%
137Chispa 4.0.32275+14−1447.5%+18.137.0%1773
53.2%
138Merlin 2.0 beta2273+40−4047.3%+20.620.5%224
60.5%
139Neurosis 2.32264+44−4721.7%+228.117.4%224
59.5%
140BlackBishop 0.982258+19−1940.3%+75.517.0%1325
55.7%
141Genesis 2.02256+19−1950.0%+0.121.8%1120
63.4%
142InmiChess3.06N2252+14−1448.7%+5.619.1%2077
72.9%
143Lime 662245+19−1942.6%+57.515.5%1312
79.5%
144Sunsetter 10.3 64-bit2234+17−1749.0%+3.117.9%1414
57.5%
145Nesik 0.7.0 alpha2231+17−1748.4%+8.921.0%1378
76.7%
146Fortress 1.622223+16−1645.4%+34.520.5%1623
61.0%
147WJChess 1.642220+17−1747.1%+16.518.3%1473
59.2%
148Alex 1.962217+20−2038.4%+95.415.9%1194
50.6%
149Adam 3.02216+36−3641.6%+60.418.1%320
93.5%
150Wing 2.0a2185+16−1647.6%+17.620.4%1513
59.7%
151GK 0.90 64-bit2182+17−1742.4%+56.519.9%1419
87.7%
152Monarch 1.72154+42−4157.1%−46.420.6%218
54.0%
153Matheus 2.32152+17−1741.3%+66.420.5%1461
90.7%
154Bodo 0.2b2135+18−1837.5%+100.616.1%1288
76.8%
155Bestia 0.902127+15−1539.6%+84.918.8%1832
53.5%
156Matant 5.022124+45−4548.0%+20.614.1%220
59.2%
157Ax 0.82118+18−1833.4%+138.815.5%1482
69.1%
158Gibbon 2.01b2107+40−4140.2%+90.819.5%256
53.2%
159DelphiMAX 2.92105+19−1936.4%+110.315.0%1231
90.9%
160Elephant 1.062087+20−2041.4%+65.618.9%1006
76.6%
161Monik 2.2.22065+52−5524.5%+267.811.9%210
53.3%
162FireFly 2.1.32062+41−4237.4%+106.218.7%235
51.1%
163JanWillem 1.132061+21−2237.1%+100.817.7%902
57.7%
164‑165BigLion 2.23x2057+31−3140.4%+79.215.8%437
50.0%
164‑165Marvin 1.3.02057+18−1840.4%+73.020.5%1193
57.3%
166Faile 1.4.42055+15−1531.6%+160.220.1%2185
90.9%
167Micro-Max 4.82036+24−2438.4%+117.818.5%766
75.5%
168Eagle 0.7.52022+32−3253.6%−30.014.6%384
56.2%
169BibiChess 0.52018+21−2237.9%+90.021.7%836
68.2%
170Feuerstein 0.4.4.22007+40−4035.7%+122.114.4%270
53.3%
171Sharper 0.172005+23−2331.3%+152.716.1%844
59.6%
172Myrddin 0.822001+26−2629.1%+183.613.6%733
55.1%
173BamBam1998+22−2239.5%+89.420.9%850
75.0%
174Clueless V1.41984+35−3456.7%−54.015.9%320
100.0%
175Dabbaba 2.621893+32−3319.1%+283.911.5%564
54.0%
176Soldat 0.25b1891+23−2413.7%+359.512.2%1287
51.7%
177BikJump v1.31890+36−3639.4%+79.922.3%287
64.9%
178Chenard 2009.09.191880+33−3517.4%+338.69.4%565
65.7%
179Heracles 0.5.91869+34−3450.8%−5.420.5%331
99.8%
180Elf 1.3.01793+31−3314.4%+322.410.9%616
50.9%
181Tscp 1.811792+37−3737.4%+98.120.3%301
74.6%
182Roce 0.03601776+33−3434.1%+114.025.8%349
 

Results matrix

All engines (top 12, best versions only)
#NameELO1
Rybka
2
Stock
3
Naum
4
Deep
5
Spark
6
Think
7
Zappa
8
Hiarc
9
Deep
10
Deep
11
Brigh
12
Toga
1Rybka 3 64-bit 4CPU3263 58 − 42
+41−25=34
−22		61 − 39
+36−14=50
−42		66 − 34
+45−13=42
−17		80 − 20
+66−6=28
+15		82.5 − 16.5
+70−4=25
+31		 81 − 19
+66−4=30
−7		88 − 12
+80−4=16
+89		82 − 18
+68−4=28
−12		86.5 − 13.5
+78−5=17
+41		86 − 14
+77−5=18
+28
2Stockfish 1.6s JA 64-bit 4CPU318742 − 58
+25−41=34
+22		 61 − 39
+41−19=40
+37		57.5 − 42.5
+30−15=55
−1		76.5 − 22.5
+59−5=35
+61		70.5 − 29.5
+54−13=33
−3		69.5 − 30.5
+54−15=31
−6		68 − 32
+50−14=36
−34		74 − 26
+56−8=36
+5		 72.5 − 26.5
+60−14=25
−17		74.5 − 25.5
+57−8=35
−21
3Naum 4 64-bit 4CPU315439 − 61
+14−36=50
+42		39 − 61
+19−41=40
−37		 54 − 45
+34−25=40
+17		59 − 41
+35−17=48
−37		68.5 − 29.5
+48−9=41
+20		61.5 − 38.5
+39−16=45
−35		69.5 − 30.5
+54−15=31
+15		70.5 − 29.5
+55−14=31
+19		 73 − 27
+59−13=28
+11		71 − 29
+53−11=36
−14
4Deep Shredder 12 64-bit OA On 4CPU314334 − 66
+13−45=42
+17		42.5 − 57.5
+15−30=55
+1		45 − 54
+25−34=40
−17		 57.5 − 42.5
+37−22=41
−31		59.5 − 40.5
+46−27=27
−31		68 − 32
+49−13=38
+20		73 − 27
+56−10=34
+46		64.5 − 35.5
+51−22=27
−7		 72 − 28
+53−9=38
+3		71.5 − 28.5
+55−12=33
+4
5Spark 0.3 64-bit 4CPU306320 − 80
+6−66=28
−15		22.5 − 76.5
+5−59=35
−61		41 − 59
+17−35=48
+37		42.5 − 57.5
+22−37=41
+31		 53 − 47
+31−25=44
0		45 − 55
+24−34=42
−50		61 − 38
+43−20=36
+47		58 − 42
+36−20=44
+17		 59 − 41
+42−24=34
−2		58.5 − 41.5
+38−21=41
−9
6Thinker 5.4c Inert 64-bit 4CPU304616.5 − 82.5
+4−70=25
−31		29.5 − 70.5
+13−54=33
+3		29.5 − 68.5
+9−48=41
−20		40.5 − 59.5
+27−46=27
+31		47 − 53
+25−31=44
0		 47 − 53
+25−31=44
−17		48.5 − 51.5
+30−33=37
−23		54 − 46
+37−29=34
+14		 56 − 44
+38−26=36
−5		62 − 38
+42−18=40
+30
7Zappa Mexico II 64-bit 4CPU3046 30.5 − 69.5
+15−54=31
+6		38.5 − 61.5
+16−39=45
+35		32 − 68
+13−49=38
−20		55 − 45
+34−24=42
+50		53 − 47
+31−25=44
+17		 59 − 41
+36−18=46
+42		57 − 43
+39−25=36
+33		 59.5 − 40.5
+41−22=37
+16		25.5 − 24.5
+12−11=27
−40
8Hiarcs 12.1 4CPU303419 − 81
+4−66=30
+7		32 − 68
+14−50=36
+34		30.5 − 69.5
+15−54=31
−15		27 − 73
+10−56=34
−46		38 − 61
+20−43=36
−47		51.5 − 48.5
+33−30=37
+23		41 − 59
+18−36=46
−42		 52.5 − 47.5
+36−31=33
+13		 63 − 37
+42−16=42
+49		 
9Deep Sjeng WC2008 64-bit 4CPU303212 − 88
+4−80=16
−89		26 − 74
+8−56=36
−5		29.5 − 70.5
+14−55=31
−19		35.5 − 64.5
+22−51=27
+7		42 − 58
+20−36=44
−17		46 − 54
+29−37=34
−14		43 − 57
+25−39=36
−33		47.5 − 52.5
+31−36=33
−13		  50 − 50
+32−32=36
−28		50 − 50
+26−26=48
−33
10Deep Fritz 10.1 4CPU301718 − 82
+4−68=28
+12		           
11Bright 0.4a 4CPU300213.5 − 86.5
+5−78=17
−41		26.5 − 72.5
+14−60=25
+17		27 − 73
+13−59=28
−11		28 − 72
+9−53=38
−3		41 − 59
+24−42=34
+2		44 − 56
+26−38=36
+5		40.5 − 59.5
+22−41=37
−16		37 − 63
+16−42=42
−49		50 − 50
+32−32=36
+28		  45.5 − 54.5
+27−36=37
−31
12Toga II 1.4 beta5c 4CPU299914 − 86
+5−77=18
−28		25.5 − 74.5
+8−57=35
+21		29 − 71
+11−53=36
+14		28.5 − 71.5
+12−55=33
−4		41.5 − 58.5
+21−38=41
+9		38 − 62
+18−42=40
−30		24.5 − 25.5
+11−12=27
+40		 50 − 50
+26−26=48
+33		 54.5 − 45.5
+36−27=37
+31		 
Performance color legend:
(Only pairs with at least 30 games)
-120 -100 -80 -60 -40 -20 0 20 40 60 80 100 120

LOS matrix

All engines (top 12, best versions only)
#NameELO1
Ryb
2
Sto
3
Nau
4
Dee
5
Spa
6
Thi
7
Zap
8
Hia
9
Dee
10
Dee
11
Bri
12
Tog
1Rybka 3 64-bit 4CPU3263 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 1.6s JA 64-bit 4CPU31870.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Naum 4 64-bit 4CPU31540.00.0 92.2100.0100.0100.0100.0100.0100.0100.0100.0
4Deep Shredder 12 64-bit OA On 4CPU31430.00.07.8 100.0100.0100.0100.0100.0100.0100.0100.0
5Spark 0.3 64-bit 4CPU30630.00.00.00.0 97.398.0100.0100.0100.0100.0100.0
6Thinker 5.4c Inert 64-bit 4CPU30460.00.00.00.02.7 52.695.397.599.9100.0100.0
7Zappa Mexico II 64-bit 4CPU30460.00.00.00.02.047.4 95.497.799.9100.0100.0
8Hiarcs 12.1 4CPU30340.00.00.00.00.04.74.6 60.596.5100.0100.0
9Deep Sjeng WC2008 64-bit 4CPU30320.00.00.00.00.02.52.339.5 94.9100.0100.0
10Deep Fritz 10.1 4CPU30170.00.00.00.00.00.10.13.55.1 94.397.5
11Bright 0.4a 4CPU30020.00.00.00.00.00.00.00.00.05.7 65.7
12Toga II 1.4 beta5c 4CPU29990.00.00.00.00.00.00.00.00.02.534.3 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Complete list (all engines and versions)

Pure list (removes rating distortions)

Selections from the complete rating list:

All engines   |   32-bit

1-2-CPU engines   |   32-bit

Single-CPU engines   |   32-bit

Multi-CPU engines   |   32-bit

2-CPU engines   |   32-bit

4-CPU engines   |   32-bit

Free engines   |   32-bit

Free 1-2-CPU engines   |   32-bit

Free single-CPU engines   |   32-bit

Free multi-CPU engines   |   32-bit

Free 2-CPU engines   |   32-bit

Free 4-CPU engines   |   32-bit

Open source engines   |   32-bit

Open source 1-2-CPU engines   |   32-bit

Open source single-CPU engines   |   32-bit

Open source multi-CPU engines   |   32-bit

Open source 2-CPU engines   |   32-bit

Open source 4-CPU engines   |   32-bit

Custom comparison

Step 1. Select class of engines to compare:

Only public releases (no private engines)
Only stable versions (no beta versions)
Only engines with default settings
Only new versions
Only best versions from each family

Select additional individual engines or engine families. You can select multiple items in each list by pressing SHIFT or CTRL while selecting. These lists can be used all at the same time, all selections will be simply combined together.

Families

Engines


Step 2. Select output that you want to see.

Rating list
Testing profile
  (Step: , Numbers: )

Results table
Performance table
Score table
LOS table
Ponder hit table
Eval difference table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
 Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents
Ponder hit with common opponents
Ponder hit with all opponents
Eval difference with common opponents
Eval difference with all opponents

Ponder hit: most similar pairs
Ponder hit: most similar pairs (different families only)
Ponder hit: most different pairs
Ponder hit: most different pairs (same families only)
Eval diff: most similar pairs
Eval diff: most similar pairs (different families only)
Eval diff: most different pairs
Eval diff: most different pairs (same families only)

Maximum size of cross-tables (from 2 to 100):
Limit crosstables to engines in ELO range: to
Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
  No recalibration (reference and current list are compared as they are)
  Recalibrate reference list to current one using selected engines only
  Recalibrate reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


Step 3.


Download games in PGN format

All games are compressed with 7-zip.

All games, without comments

521'483 games (99.21 MB)

Selection of games
(Please don't use aggressive download managers)

Various statistics

Created in 2005-2008 by CCRL team
Last games added on January 29, 2010