CCRL 40/40
Downloads and Statistics
April 29, 2012
Testing summary:
Total: 392'036 games
played by 1'157 programs
51729 CPU days (X2 4600+)

White wins: 141'069 (36.0%)
Black wins: 105'475 (26.9%)
Draws: 145'492 (37.1%)
White score: 54.5%

Rating list

CCRL 40/40 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz)
Computed on April 29, 2012 with Bayeselo based on 392'036 games

Color legend: Commercial, Free, Open source, Private, Controversial.
Bold font - tested with 200 games or more. Normal font - less than 200 games.
"Controversial" means that the origin of those engines is debated in the community (CCC, OpenChess).

RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
Elo+−
1Houdini 2.0c 64-bit 4CPU3299+25−2566.0%−102.843.2%523 
99.5%
2Rybka 4 64-bit 4CPU3256+19−1865.3%−101.246.8%947
64.3%
3Critter 1.2 64-bit 4CPU3250+27−2661.2%−70.649.0%433
50.6%
4Stockfish 2.2.2 64-bit 4CPU3249+25−2559.3%−54.557.3%464
96.6%
5IvanHoe 9.46h 64-bit 4CPU3220+23−2355.7%−36.159.5%516
54.2%
6Komodo 4 64-bit3218+14−1462.8%−84.846.6%1655
92.5%
7Strelka 5.1 32-bit3197+23−2368.0%−116.947.7%614
94.1%
8Naum 4.2 64-bit 4CPU3174+15−1551.2%−9.350.5%1379
100.0%
9Deep Shredder 12 64-bit OA On 4CPU3125+13−1350.2%−1.845.3%1997
54.0%
10Spike 1.4 Leiden 4CPU3124+16−1642.5%+46.644.4%1188
56.3%
11Deep Junior 13 64-bit 4CPU3121+28−2852.6%−14.051.3%382
88.8%
12Chiron 1.1a 64-bit3097+25−2544.4%+31.345.4%502
51.2%
13Deep Fritz 11 4CPU3096+29−2954.2%−27.355.2%335
57.3%
14Hiarcs 13.2 4CPU3093+21−2143.2%+45.241.5%713
60.5%
15Protector 1.4.0 64-bit 4CPU3087+34−3545.8%+25.847.4%249
64.4%
16Zappa Mexico II 64-bit 4CPU3080+11−1149.7%+0.747.9%2775
61.7%
17Spark 1.0 64-bit 4CPU3077+21−2139.0%+69.146.8%692
98.8%
18Deep Sjeng c't 20103045+12−1346.6%+21.945.1%2074
76.0%
19Onno 1.2.70 64-bit 4CPU3032+32−3247.9%+14.049.3%288
57.2%
20Thinker 5.4C Inert 64-bit 4CPU3028+15−1549.1%+6.539.0%1552
60.5%
21Gull 1.2 64-bit3025+19−1937.3%+86.837.7%921
91.3%
22Toga II 1.4.1SE 4CPU3008+13−1348.9%+8.241.9%2060
72.1%
23Bright 0.4a 4CPU3002+15−1549.9%+1.640.4%1415
85.2%
24Quazar 0.4 32-bit2988+20−2041.2%+60.542.4%819
68.9%
25Hannibal 1.1 64-bit2979+30−3046.0%+24.444.5%346
93.7%
26Loop M1-T 64-bit 4CPU2953+12−1243.2%+43.445.2%2447
59.0%
27Crafty 23.3 64-bit 4CPU2949+30−3045.0%+33.337.8%360
52.8%
28Nemo 1.0.1 64-bit2948+34−3542.9%+44.146.4%248
56.6%
29Booot 5.1.02945+12−1241.7%+54.941.0%2544
77.8%
30Umko 1.2 64-bit2930+35−3547.2%+18.438.3%264
99.6%
31Jonny 4.002881+13−1344.4%+36.835.5%2189
70.2%
32SmarThink 1.20 64-bit2874+21−2156.2%−42.635.3%768
62.2%
33‑34BugChess2 1.9 64-bit2868+32−3253.6%−24.532.8%320
49.6%
33‑34Texel 1.01 32-bit2868+43−4263.0%−92.526.0%204
53.3%
35Naraku 1.42866+27−2748.9%+7.823.2%488
54.5%
36‑37Tornado 4.88 32-bit2864+32−3152.5%−15.041.4%314
50.1%
36‑37Twisted Logic 20100131x 64-bit2864+22−2251.9%−15.534.9%705
78.9%
38Ktulu 92853+14−1444.6%+34.939.0%1682
63.3%
39Scorpio 2.7 32-bit2849+20−2049.0%+8.536.2%826
65.9%
40Chronos 1.9.9 64-bit2842+25−2553.2%−19.836.7%537
83.9%
41Bison 9.112827+14−1448.5%+10.237.2%1810
62.0%
42Delfi 5.4 2CPU2824+19−1940.3%+67.335.7%1017
54.6%
43Chessmaster 11 2CPU2821+35−3547.5%+16.339.4%259
53.6%
44Frenzee 3.5.19 32-bit2819+32−3249.8%+0.032.4%324
72.2%
45Bobcat 2.75 64-bit2806+30−3050.6%−3.938.9%360
55.9%
46Chess Tiger 2007.12803+11−1144.9%+34.042.5%3031
70.3%
47Dirty 25Aug2011 64-bit2794+30−3055.1%−32.439.5%354
86.8%
48Daydreamer 1.75 64-bit2773+25−2547.7%+16.738.4%523
62.1%
49‑50Deuterium 10.01.27.2132768+22−2251.8%−15.133.9%704
49.7%
49‑50Movei 00.8.438 (10 10 10)2768+12−1247.8%+11.837.6%2430
60.3%
51Gaviota 0.85.1 32-bit2763+35−3551.5%−9.132.8%274
56.4%
52Alaric 7072760+12−1249.1%+5.634.4%2400
58.5%
53Philou 3.7.1 64-bit2755+37−3756.1%−40.332.6%236
63.3%
54E.T. Chess 13.01.082748+14−1549.5%+3.137.1%1599
60.7%
55Cyrano 0.6b172745+15−1547.9%+13.741.5%1437
57.0%
56Colossus 2008b2744+13−1349.0%+6.638.0%1963
54.2%
57‑58Cheng3 1.07 32-bit2742+31−3145.0%+33.230.2%351
49.7%
57‑58Pharaon 3.5.1 2CPU2742+33−3332.2%+135.626.9%357
61.3%
59Slow Chess Blitz WV2.12737+12−1247.9%+13.736.7%2367
54.8%
60RedQueen 1.0.0 32-bit2735+24−2451.6%−7.535.9%576
54.4%
61ProDeo 1.742733+25−2551.3%−6.532.8%551
55.0%
62Alfil 122731+34−3454.4%−32.731.3%297
53.9%
63‑64Ruffian 2.1.02729+15−1547.6%+17.836.6%1540
51.2%
63‑64WildCat 82729+14−1449.2%+3.835.5%1660
59.7%
65Gandalf 62726+12−1245.7%+29.635.6%2503
66.3%
66‑67Arasan 13.4 32-bit2719+30−3049.7%+1.934.8%374
50.4%
66‑67Hamsters 0.7.12719+16−1648.7%+9.138.6%1341
70.8%
68Sloppy 0.2.3 64-bit2711+24−2449.2%+4.831.6%580
85.3%
69Aristarch 4.502696+13−1347.4%+19.232.0%2275
59.3%
70‑71Petir 4.392693+23−2349.5%+0.437.7%607
49.5%
70‑71The Baron 2.23 32-bit2693+16−1650.2%−2.033.3%1259
53.8%
72N2 0.4 64-bit2692+19−1950.6%−5.334.0%913
53.8%
73Pseudo 0.7c2691+14−1450.8%−5.838.0%1625
60.2%
74Rotor 0.62688+17−1648.1%+13.832.6%1245
53.8%
75Amyan 1.722687+14−1451.2%−7.830.6%1825
51.0%
76CuckooChess 1.122686+26−2747.8%+16.630.6%483
66.0%
77GarboChess 3.0 64-bit2677+36−3655.1%−36.327.4%263
51.9%
78Godel 2.05 32-bit2676+25−2549.0%+5.730.9%525
50.6%
79GNU Chess 5.07.153b 64-bit2675+34−3461.9%−84.330.4%306
65.8%
80Francesca MAD 0.192667+21−2145.9%+28.833.3%753
55.8%
81Brutus 8.05 32-bit2665+17−1749.3%+2.936.7%1135
63.0%
82DanaSah 4.882660+27−2751.8%−12.633.2%449
55.8%
83SOS 5.12657+14−1447.5%+15.434.2%1731
60.8%
84Anaconda 2.0.12653+27−2747.9%+12.135.2%458
65.4%
85Glass 1.7 64-bit2644+35−3554.0%−29.826.0%288
51.7%
86AnMon 5.662643+24−2449.7%+2.030.9%573
55.3%
87Ufim 8.022641+13−1449.5%+2.230.9%1902
87.0%
88Hermann 2.8 64-bit2624+28−2750.3%−3.424.4%464
57.8%
89Rodin 4.02620+20−2052.7%−21.430.2%870
54.9%
90Rodent 0.102618+36−3647.6%+13.932.8%253
61.4%
91‑92EXchess 6.10b 32-bit2610+37−3748.6%+8.433.5%242
50.1%
91‑92Nimzo 82610+28−2845.5%+33.432.2%453
61.9%
93Little Goliath Evolution 3.122605+18−1846.4%+23.933.5%1014
55.9%
94Tao 5.62603+17−1749.9%+1.226.5%1169
52.4%
95Green Light Chess 3.01.2.22602+28−2849.2%+4.731.7%417
59.4%
96Pawny 0.3.1 32-bit2597+34−3448.0%+13.828.7%300
64.9%
97Delphil 2.82589+23−2349.2%+3.933.6%636
51.5%
98LittleThought 1.052 64-bit2588+24−2450.0%−0.123.0%600
51.6%
99NanoSzachy 3.92587+24−2449.2%+5.429.0%600
52.0%
100GreKo 8.0 64-bit2586+27−2750.6%−3.131.9%464
56.6%
101Yace 0.99.872584+19−1950.2%−0.827.6%980
54.1%
102‑103Bruja 1.9.1 64-bit2582+24−2450.8%−5.025.6%590
49.1%
102‑103Xpdnt 0910072582+16−1649.3%+4.932.0%1355
58.4%
104Anatoli 0.35k2580+17−1750.9%−8.032.3%1236
52.0%
105‑107DoubleCheck 3.1 32-bit2579+36−3650.8%−7.025.8%264
50.4%
105‑107Matacz 1.32579+29−2947.4%+17.633.0%382
48.8%
105‑107SpiderChess 0706032579+23−2350.1%+2.439.7%605
52.1%
108‑109Cerebro 3.03d2578+19−1949.8%−0.029.7%982
52.0%
108‑109Pepito 1.59 32-bit2578+24−2449.4%+2.033.8%585
50.5%
110BBChess 1.3b2577+25−2551.0%−5.838.1%525
54.1%
111Quark 2.352576+21−2149.6%+1.330.0%791
56.2%
112Trace 1.362573+23−2348.3%+12.925.6%691
58.5%
113Pupsi2 0.082570+18−1849.0%+6.430.9%1089
64.2%
114Counter 1.22566+17−1748.0%+13.538.5%1088
81.1%
115Murka 2.0 64-bit2546+40−4137.0%+91.424.1%216
51.6%
116Hussar 0.42545+21−2148.2%+11.630.1%790
56.6%
117Dorky 4.0 64-bit2541+37−3750.8%−4.032.5%240
59.9%
118Typhoon 1.00-3482534+38−3848.2%+13.627.5%247
54.4%
119PostModernist 10162532+25−2547.7%+14.429.0%545
54.0%
120Eeyore 1.52 64-bit2530+28−2850.3%−3.424.7%434
52.3%
121Snitch 1.6.2 32-bit2528+24−2447.6%+16.428.7%614
52.7%
122Homer 2.012527+20−2049.1%+5.532.6%804
59.2%
123Abrok 5.02523+31−3149.1%+6.529.1%344
60.1%
124OliThink 5.3.2 64-bit2516+41−4151.2%−9.323.6%203
52.5%
125Muse 0.899b2514+22−2247.6%+18.527.0%730
51.8%
126KnightDreamer 3.32513+37−3748.8%+10.732.5%243
53.8%
127Kiwi 0.6d2511+20−2046.4%+23.327.1%861
62.4%
128Diablo 0.5.12507+19−1949.4%+4.131.6%925
54.7%
129Queen 4.03a2505+20−2048.8%+6.534.5%862
52.9%
130Dragon 4.62504+19−1946.3%+25.034.3%888
57.4%
131RomiChess P3k 32-bit2501+19−1949.2%+5.733.0%906
55.6%
132Gaia 3.5 32-bit2499+23−2348.8%+8.429.0%627
54.7%
133‑134Amy 0.87b2497+26−2650.0%+3.325.6%516
50.0%
133‑134Djinn 0.925x2497+23−2346.6%+22.627.9%646
52.1%
135‑137Atlas 3.14b 32-bit2496+25−2549.2%+5.930.5%551
50.8%
135‑137Comet B682496+24−2447.2%+19.225.3%640
49.9%
135‑137Simplex 0.9.8 32-bit2496+31−3149.3%+3.431.3%345
57.5%
138PikoSzachy 3.42491+35−3548.6%+10.424.1%295
51.8%
139Patzer 3.802490+26−2649.8%+2.325.3%506
60.3%
140Phalanx XXII2485+24−2450.0%−0.123.6%597
55.6%
141Gosu 0.162483+21−2147.4%+18.626.5%780
53.0%
142Sorgenkind 0.42482+16−1652.2%−14.728.4%1452
54.2%
143‑144Amateur 2.822481+21−2247.0%+20.925.0%787
47.9%
143‑144Horizon 4.42481+18−1849.2%+4.926.3%1103
58.9%
145Sage 3.532479+18−1850.0%+0.027.9%1063
54.9%
146Alex 2.14a 64-bit2476+36−3650.6%−3.323.0%269
54.8%
147Thor's Hammer 2.28 32-bit2473+28−2849.5%+4.329.1%440
56.3%
148Ifrit m1.52470+28−2846.6%+24.229.0%445
55.6%
149‑150Ares 1.0042468+16−1649.6%+0.526.7%1413
50.3%
149‑150iCE 0.22468+23−2356.5%−52.622.1%687
57.1%
151TJchess 1.012465+24−2450.9%−7.425.0%635
62.3%
152Tytan 9.32459+24−2450.7%−4.925.9%633
59.1%
153Plisk 0.2.62454+36−3651.3%−8.026.7%266
68.3%
154Flux 2.22443+23−2350.2%+0.130.3%657
62.2%
155‑156Arion 1.72439+21−2151.8%−15.727.6%818
49.6%
155‑156Ghost 2.0.12439+20−2051.5%−9.729.1%834
56.6%
157WChess 1.062435+32−3347.5%+15.632.9%316
66.0%
158Amundsen 0.80 32-bit2427+20−2147.5%+18.529.9%825
55.9%
159Aice 0.99.22425+21−2147.2%+19.826.3%777
56.5%
160Asterisk 0.62423+21−2048.9%+6.627.2%837
62.6%
161Butcher 1.61 64-bit2416+36−3744.3%+41.923.5%264
53.4%
162KnightX 1.922414+24−2449.3%+3.128.0%611
53.3%
163Averno 0.812412+25−2548.7%+7.926.4%557
55.0%
164Popochin 2.92409+37−3744.4%+44.631.2%260
56.5%
165Sungorus 1.4 64-bit2405+33−3347.6%+17.223.1%338
52.8%
166Mediocre 0.42403+37−3650.9%−7.423.9%264
52.8%
167Cheese 1.3b 32-bit2402+37−3747.4%+17.727.7%253
51.6%
168‑169Waxman 20102401+22−2251.7%−12.127.8%752
49.0%
168‑169Zeus 1.272401+34−3452.1%−21.723.2%328
57.1%
170Natwarlal 0.142398+21−2148.4%+11.324.2%815
59.5%
171Chezzz 1.0.32394+24−2449.8%−1.025.6%617
52.9%
172‑173Ant 2006-F2392+24−2548.5%+8.923.8%617
51.5%
172‑173Joker 1.1.142392+22−2250.6%−5.227.8%730
54.4%
174Anechka 0.082390+20−2147.0%+23.126.6%852
52.0%
175Sjakk 1.1.82389+28−2855.3%−39.024.7%466
63.0%
176AliChess 4.252383+28−2848.5%+9.924.3%460
56.6%
177Chaturanga 2.4.32379+26−2650.1%−1.026.7%539
68.6%
178EveAnn 1.662369+35−3547.8%+15.030.9%269
62.3%
179Matilde 20082361+34−3451.5%−9.831.2%295
59.2%
180Chispa 4.0.32356+21−2149.4%+4.427.5%800
53.4%
181Jazz 444 64-bit2354+39−3951.0%−6.719.6%240
62.3%
182RattateChess 1.0 Nosferatu2347+24−2448.9%+10.028.5%610
69.2%
183Beowulf 2.4a 64-bit2337+28−2854.4%−31.522.5%463
67.9%
184‑185Atak 6.82329+21−2146.6%+24.323.3%841
49.8%
184‑185Ayito 0.2.9942329+26−2646.5%+24.022.7%538
51.5%
186‑188Betsabe II 1.08c2328+38−3851.4%−8.621.8%252
48.8%
186‑188Dolphin 1.02328+27−2751.0%−8.224.5%490
51.5%
186‑188Myrddin 0.85 64-bit2328+32−3252.4%−19.020.2%352
50.6%
189Feuerstein 0.4.6.12327+19−1949.1%+6.328.5%939
68.1%
190KMTChess 1.2.1 64-bit2319+26−2649.5%+3.523.4%548
66.0%
191‑194Bearded N44.2 32-bit2310+35−3552.1%−14.125.9%286
50.8%
191‑194ChessAlex 2.0r42310+24−2449.0%+4.029.0%589
48.6%
191‑194FireFly 2.5.12 64-bit2310+37−3752.1%−16.322.3%264
50.8%
191‑194Gibbon 2.42c2310+26−2646.1%+26.828.4%514
53.1%
195Bagatur 1.2d 32-bit2308+38−3845.7%+27.229.1%234
55.3%
196Uralochka 1.1b2305+21−2148.5%+10.726.6%835
53.2%
197Adam 3.32304+26−2749.2%+6.221.2%520
63.8%
198ZCT 0.3.24512297+27−2749.4%+3.525.5%478
51.3%
199Neurosis 2.52296+17−1749.1%+6.928.6%1218
69.2%
200BlackBishop 1.02290+18−1948.9%+7.927.3%1034
54.3%
201Kurt 0.9.2.2 64-bit2288+29−2951.0%−8.720.9%446
58.4%
202Latista (Sinobyl) 1.52283+30−3049.9%−1.925.1%391
51.4%
203Alf 1.092282+25−2549.6%−0.329.3%566
55.9%
204OBender 3.2.4.22280+20−2049.9%+2.225.4%899
55.1%
205Buzz 0.08 32-bit2278+28−2851.1%−7.925.4%472
63.7%
206ECE 11.012271+23−2347.3%+17.422.0%683
66.7%
207NagaSkaki 5.122264+20−2050.6%−4.828.0%876
65.4%
208Lime 662258+23−2250.3%−3.421.2%728
68.4%
209Chesley r3232250+26−2648.8%+9.820.5%557
66.1%
210KnockOut 0.7.12243+16−1652.1%−14.726.8%1400
94.1%
211Prophet 2.02224+19−1949.3%+3.824.0%1005
53.5%
212Parrot 07.01.162222+32−3246.0%+29.821.5%354
74.4%
213ChessKiss 1.3a2205+36−3647.5%+15.327.7%264
57.8%
214Clarabit 1.002201+22−2247.6%+14.229.9%736
79.6%
215Carballo 0.5 32-bit2187+24−2446.8%+23.322.5%622
84.9%
216BikJump 2.012171+18−1850.3%−1.827.3%1062
85.9%
217Protej 0.5.72153+26−2646.8%+22.724.0%520
57.5%
218BigLion 2.23x2150+22−2245.3%+33.128.3%718
59.7%
219PLP 16615712146+25−2546.9%+22.024.0%559
52.5%
220Bubble 1.52145+28−2845.2%+34.722.2%478
62.7%
221Jabba 1.02139+24−2446.6%+24.626.9%603
77.3%
222Matheus 2.32125+25−2545.1%+37.922.7%599
55.6%
223Mustang 4.972123+27−2743.9%+40.830.8%484
53.4%
224Slibo 0.5.12121+26−2646.0%+29.219.3%539
68.5%
225Monarch 1.72112+23−2344.9%+49.219.4%767
75.4%
226ChessMind 0.822100+26−2645.9%+30.617.1%580
66.7%
227BSC 3.92090+37−3844.9%+39.124.1%253
52.6%
228BibiChess 0.52089+29−2947.8%+15.324.5%436
57.2%
229Schola 1.1.02085+27−2745.7%+31.426.0%480
80.0%
230Heracles 0.6.162069+27−2746.2%+27.127.9%499
84.2%
231Marvin 1.3.02050+26−2643.2%+51.022.5%570
54.3%
232Monik 2.2.3 32-bit2048+34−3444.7%+36.428.1%303
61.9%
233Rival 1.182041+27−2745.6%+31.325.4%489
65.6%
234‑235MatMoi 7.15.02033+28−2939.6%+76.625.1%443
49.5%
234‑235Smash 1.0.32033+26−2640.8%+74.617.8%574
73.7%
236Micro-Max 4.8 (DM-PII)2021+25−2648.6%+11.825.1%541
71.0%
237GChess IV 0.2.02010+30−3141.1%+65.528.1%377
58.0%
238Reger 0.092006+28−2837.9%+90.522.1%480
67.8%
239Clueless 1.41997+23−2340.4%+76.717.4%726
73.6%
240Warrior 1.0.31986+27−2843.0%+51.824.9%478
71.1%
241Surprise 4.3b131975+29−3038.9%+87.919.1%446
87.4%
242Predateur 2.2 64-bit1946+41−4239.6%+78.618.1%216
 

Results matrix

All engines (top 12, best versions only)
#NameElo1
Houdi
2
Rybka
3
Critt
4
Stock
5
IvanH
6
Komod
7
Strel
8
Naum
9
Deep
10
Spike
11
Deep
12
Chiro
1Houdini 2.0c 64-bit 4CPU3299  32.5 − 18.5
+22−8=21
+35		27 − 25
+14−12=26
−35		31 − 21
+16−6=30
−25		  36 − 16
+23−3=26
−9		39 − 11
+31−3=16
+20		36 − 8
+31−3=10
+65		25 − 7
+19−1=12
+8		 
2Rybka 4 64-bit 4CPU3256       32 − 25
+12−5=40
−49		43.5 − 12.5
+31−0=25
+45		   
3Critter 1.2 64-bit 4CPU325018.5 − 32.5
+8−22=21
−35		      19.5 − 11.5
+13−5=13
+7		23 − 9
+16−2=14
+11		22.5 − 9.5
+14−1=17
−8		  
4Stockfish 2.2.2 64-bit 4CPU324925 − 27
+12−14=26
+35		   28 − 23
+8−3=40
−3		27.5 − 22.5
+9−4=37
−5		 31 − 19
+20−8=22
0		33.5 − 15.5
+21−3=25
−12		32.5 − 17.5
+19−4=27
−36		  
5IvanHoe 9.46h 64-bit 4CPU322021 − 31
+6−16=30
+25		  23 − 28
+3−8=40
+3		 24 − 28
+5−9=38
−21		 32 − 20
+19−7=26
+22		31 − 22
+15−6=32
−47		35 − 16
+24−5=22
+18		  
6Komodo 4 64-bit3218   22.5 − 27.5
+4−9=37
+5		28 − 24
+9−5=38
+21		   22 − 10
+15−3=14
+24		20.5 − 11.5
+14−5=13
−3		 36.5 − 13.5
+25−2=23
+20
7Strelka 5.1 32-bit3197            
8Naum 4.2 64-bit 4CPU317416 − 36
+3−23=26
+9		25 − 32
+5−12=40
+49		11.5 − 19.5
+5−13=13
−7		19 − 31
+8−20=22
0		20 − 32
+7−19=26
−22		   28 − 25
+15−12=26
−31		14.5 − 17.5
+6−9=17
−79		  
9Deep Shredder 12 64-bit OA On 4CPU312511 − 39
+3−31=16
−20		12.5 − 43.5
+0−31=25
−45		9 − 23
+2−16=14
−11		15.5 − 33.5
+3−21=25
+12		22 − 31
+6−15=32
+47		10 − 22
+3−15=14
−24		 25 − 28
+12−15=26
+31		 25 − 23
+18−16=14
+13		26 − 24
+16−14=20
+7		 
10Spike 1.4 Leiden 4CPU31248 − 36
+3−31=10
−65		 9.5 − 22.5
+1−14=17
+8		17.5 − 32.5
+4−19=27
+36		16 − 35
+5−24=22
−18		11.5 − 20.5
+5−14=13
+3		 17.5 − 14.5
+9−6=17
+79		23 − 25
+16−18=14
−13		 24.5 − 25.5
+14−15=21
−8		 
11Deep Junior 13 64-bit 4CPU31217 − 25
+1−19=12
−8		       24 − 26
+14−16=20
−7		25.5 − 24.5
+15−14=21
+8		  
12Chiron 1.1a 64-bit3097     13.5 − 36.5
+2−25=23
−20		      
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
Hou
2
Ryb
3
Cri
4
Sto
5
Iva
6
Kom
7
Str
8
Nau
9
Dee
10
Spi
11
Dee
12
Chi
1Houdini 2.0c 64-bit 4CPU3299 99.599.799.8100.0100.0100.0100.0100.0100.0100.0100.0
2Rybka 4 64-bit 4CPU32560.5 64.365.498.999.8100.0100.0100.0100.0100.0100.0
3Critter 1.2 64-bit 4CPU32500.335.7 50.695.097.499.7100.0100.0100.0100.0100.0
4Stockfish 2.2.2 64-bit 4CPU32490.234.649.4 96.698.199.7100.0100.0100.0100.0100.0
5IvanHoe 9.46h 64-bit 4CPU32200.01.14.93.4 54.289.0100.0100.0100.0100.0100.0
6Komodo 4 64-bit32180.00.22.61.945.8 92.5100.0100.0100.0100.0100.0
7Strelka 5.1 32-bit31970.00.00.30.311.07.5 94.1100.0100.0100.0100.0
8Naum 4.2 64-bit 4CPU31740.00.00.00.00.00.05.9 100.0100.099.9100.0
9Deep Shredder 12 64-bit OA On 4CPU31250.00.00.00.00.00.00.00.0 54.059.396.7
10Spike 1.4 Leiden 4CPU31240.00.00.00.00.00.00.00.046.0 56.395.0
11Deep Junior 13 64-bit 4CPU31210.00.00.00.00.00.00.00.140.743.7 88.8
12Chiron 1.1a 64-bit30970.00.00.00.00.00.00.00.03.35.011.2 
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

392'036 games (75.67 MB)

All games with comments

392'036 games (234.76 MB)

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

Various statistics

Created in 2005-2008 by CCRL team
Last games added on April 29, 2012