CCRL 40/40
Downloads and Statistics
July 3, 2010
Testing summary:
Total: 265'503 games
played by 880 programs
37419 CPU days (X2 4600+)

White wins: 95'210 (35.9%)
Black wins: 70'363 (26.5%)
Draws: 99'930 (37.6%)
White score: 54.7%

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 July 3, 2010 with Bayeselo based on 265'503 games
RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
ELO+−
1Rybka 4 64-bit 4CPU3261+25−2571.1%−138.846.4%524 
99.7%
2Stockfish 1.7.1 64-bit 4CPU3218+21−2164.3%−92.349.6%707
97.9%
3Naum 4.2 64-bit 4CPU3187+24−2460.4%−68.749.5%525
100.0%
4Deep Shredder 12 64-bit OA On 4CPU3123+17−1756.1%−38.945.8%1062
94.2%
5Deep Fritz 11 4CPU3096+29−2954.2%−27.455.2%335
91.3%
6Zappa Mexico II 64-bit 4CPU3074+13−1355.0%−31.946.7%2022
54.8%
7Spark 0.5 64-bit 4CPU3071+35−3547.7%+16.648.3%238
82.4%
8Komodo 1.2 64-bit3049+30−3054.5%−28.046.1%343
80.1%
9Thinker 5.4C Inert 64-bit 4CPU3034+16−1753.0%−21.739.1%1225
66.3%
10Deep Sjeng WC2008 64-bit 4CPU3029+14−1448.2%+10.440.5%1607
97.1%
11Hiarcs 12.1 4CPU3009+15−1542.7%+45.845.4%1414
59.1%
12Toga II 1.4.1SE 4CPU3007+13−1350.2%−0.841.7%1975
66.2%
13Bright 0.4a 4CPU3003+15−1450.7%−3.940.5%1556
81.5%
14Critter 0.70 32-bit2989+23−2350.5%−3.149.9%567
99.3%
15Loop M1-T 64-bit 4CPU2955+12−1243.3%+42.345.1%2441
63.4%
16Protector 1.3.3 64-bit2949+31−3149.4%+4.644.1%311
66.5%
17Onno 1.2.70 64-bit2938+35−3645.2%+31.544.6%240
53.0%
18Deep Junior 11.2 64-bit 1CPU2936+36−3646.0%+25.137.9%240
85.6%
19Crafty 23.1 64-bit 4CPU2909+31−3145.8%+30.237.0%330
83.9%
20Twisted Logic 20100131x 64-bit2886+29−2953.5%−24.635.3%388
75.0%
21SmarThink 1.20 64-bit2873+28−2853.7%−26.034.3%408
86.8%
22Ktulu 92854+17−1739.3%+71.138.5%1113
71.8%
23Spike 1.2 Turin2848+7−743.6%+41.739.8%8211
88.1%
24Scorpio 2.0 4CPU2834+22−2234.0%+110.336.9%713
64.9%
25Bison 9.112828+18−1844.4%+38.038.4%1021
52.3%
26Delfi 5.4 2CPU2827+19−1941.0%+63.735.6%985
54.8%
27Chessmaster 11 2CPU2825+35−3547.5%+15.639.6%260
87.2%
28Chess Tiger 2007.12804+11−1144.1%+38.442.4%2862
53.7%
29‑30Chronos 1.9.8 64-bit2802+38−3848.6%+8.639.8%216
50.5%
29‑30Daydreamer 1.75 32-bit2802+38−3758.4%−55.739.6%225
53.0%
31Frenzee Feb08 32-bit2800+14−1445.0%+33.437.7%1817
58.9%
32Booot 4.15.02798+15−1544.5%+36.145.5%1471
85.8%
33Umko 0.82777+35−3551.1%−11.839.9%273
53.0%
34Movei 00.8.438 (10 10 10)2776+13−1348.4%+8.138.5%2157
88.7%
35Alaric 7072765+13−1349.3%+4.135.3%2007
62.9%
36BugChess2 1.6.4 32-bit2761+22−2247.6%+14.341.0%636
76.3%
37Cyrano 0.6b172751+16−1647.2%+17.441.8%1202
51.2%
38‑39Colossus 2008b2750+16−1649.2%+6.039.5%1360
50.7%
38‑39E.T. Chess 13.01.082750+15−1550.5%−3.437.5%1426
78.7%
40Slow Chess Blitz WV2.12742+13−1348.3%+11.037.2%2153
53.2%
41Pharaon 3.5.1 2CPU2741+32−3331.9%+137.427.4%368
64.0%
42Ruffian 2.1.02734+16−1647.4%+19.635.9%1376
60.6%
43WildCat 82731+17−1748.5%+9.037.8%1144
73.4%
44‑45Gandalf 62724+12−1343.7%+43.536.0%2199
49.5%
44‑45Hamsters 0.7.12724+18−1849.6%+3.241.4%1007
60.3%
46Pro Deo 1.22721+17−1748.9%+4.530.5%1179
71.4%
47Chiron 0.8.72713+23−2351.4%−10.034.4%637
60.7%
48N2 0.4 64-bit2707+29−2954.3%−30.232.6%408
62.1%
49Alfil 8.1.12702+15−1550.8%−8.632.8%1599
56.1%
50Aristarch 4.502701+14−1446.1%+27.833.1%1825
51.1%
51‑52Deuterium 09.01.26.4922700+26−2650.9%−6.038.9%455
50.4%
51‑52Sloppy 0.2.2 32-bit2700+15−1547.7%+14.537.7%1391
53.4%
53The Baron 1.8.12699+23−2349.3%+3.131.9%615
54.6%
54Pseudo 0.7c2697+15−1551.0%−6.337.9%1386
60.8%
55Petir 4.392693+26−2649.9%−2.240.5%459
60.6%
56Lemming 0.24 32-bit2687+32−3248.4%+10.737.5%307
52.3%
57‑58Arasan 11.6 64-bit2686+34−3451.2%−8.828.1%288
49.9%
57‑58Brutus 8.05 32-bit2686+33−3443.8%+36.538.2%283
62.5%
59Jonny 2.832680+17−1746.9%+18.632.5%1245
56.3%
60Amyan 1.722677+25−2555.4%−37.832.0%553
75.7%
61Rotor 0.52666+20−2048.7%+8.038.3%830
51.3%
62Dirty 6J-222665+35−3554.2%−30.632.5%274
55.1%
63SOS 5.12663+17−1746.4%+22.035.9%1171
58.4%
64Anaconda 2.0.12659+27−2847.8%+13.035.9%426
59.9%
65Tornado 3.21a 32-bit2653+38−3845.8%+27.940.7%216
56.3%
66AnMon 5.662650+25−2650.5%−4.130.9%514
60.2%
67Ufim 8.022646+17−1749.5%+0.631.6%1192
89.9%
68DanaSah 4.242630+18−1851.7%−12.637.1%1059
61.6%
69GarboChess 2.202626+17−1749.4%+3.735.0%1135
56.5%
70Viper 0.12623+36−3646.7%+21.531.9%260
58.1%
71Cerebro 3.01c2618+31−3147.5%+17.829.2%367
61.8%
72Nimzo 82611+32−3242.0%+57.833.7%338
56.5%
73‑74Little Goliath Evolution 3.122608+20−2045.7%+29.032.4%890
49.3%
73‑74NanoSzachy 3.72608+38−3856.6%−50.428.4%243
52.5%
75‑76Hermann 2.42607+23−2349.8%+1.429.3%651
49.4%
75‑76Tao 5.62607+23−2348.2%+13.128.0%646
61.5%
77LittleThought 1.052 64-bit2601+36−3652.8%−21.525.4%264
54.3%
78‑79Gaviota 0.74.41 64-bit2598+36−3644.5%+36.829.2%264
50.1%
78‑79Philou 3.1.4.12598+26−2744.0%+42.732.9%480
58.4%
80Xpdnt 0910072594+25−2553.7%−25.133.4%533
58.9%
81Matacz 1.32589+28−2847.1%+20.932.5%412
53.4%
82Trace 1.362588+28−2849.0%+6.929.0%438
50.9%
83BBChess 1.3b2587+25−2550.7%−3.937.8%500
52.8%
84SpiderChess 0706032586+28−2850.7%−1.140.9%416
52.6%
85‑86Pepito 1.59 32-bit2585+24−2449.4%+2.134.0%559
49.9%
85‑86Quark 2.352585+24−2448.6%+8.031.3%607
54.8%
87Yace 0.99.872583+24−2449.1%+6.726.8%624
51.5%
88Anatoli 0.35k2582+18−1850.7%−5.732.2%1074
79.4%
89Counter 1.22568+29−2947.7%+15.041.4%370
69.5%
90Delphil 1.9g2557+29−2950.9%−6.738.4%378
52.0%
91Pupsi2 0.082556+35−3545.2%+35.228.4%271
54.8%
92Bruja 1.9.1 32-bit2553+25−2550.6%−3.733.7%516
71.3%
93Typhoon 1.00-3582544+19−1948.3%+10.933.7%890
62.6%
94PostModernist 10162539+27−2746.1%+25.328.1%459
53.3%
95Homer 2.012537+23−2349.2%+4.432.2%646
55.5%
96Kiwi 0.6d2535+26−2646.8%+19.230.4%526
52.4%
97Snitch 1.6.2 32-bit2533+25−2645.8%+28.729.0%527
62.9%
98Muse 0.899b2528+23−2448.0%+14.827.9%628
61.6%
99KnightDreamer 3.32521+36−3648.0%+15.832.5%249
60.6%
100‑102Diablo 0.5.12515+23−2351.0%−5.732.0%621
50.2%
100‑102Dragon 4.62515+21−2146.3%+25.134.0%761
49.3%
100‑102Queen 4.032515+21−2149.7%+0.834.7%777
54.9%
103Djinn 0.925x2513+25−2646.7%+22.227.8%540
56.0%
104RomiChess P3k 32-bit2511+20−2049.2%+4.733.0%871
54.2%
105Gaia 3.5 32-bit2509+25−2548.0%+14.628.7%544
54.2%
106Rodin 3.02507+31−3147.2%+21.426.6%369
56.2%
107Comet B682504+26−2645.8%+29.625.3%549
60.0%
108Gosu 0.162499+25−2546.4%+26.026.3%566
53.0%
109Amy 0.87b2497+31−3147.5%+21.026.2%363
52.4%
110Patzer 3.802496+31−3148.5%+12.424.5%364
53.1%
111Horizon 4.42495+20−2049.9%−0.826.4%874
51.7%
112‑113Amateur 2.822494+23−2346.2%+25.824.9%672
50.5%
112‑113GreKo 6.302494+37−3747.9%+13.832.5%237
53.0%
114Sage 3.532492+19−1950.8%−5.627.9%963
60.4%
115Sorgenkind 0.42489+18−1852.0%−12.928.8%1055
63.5%
116Ares 1.0042482+34−3447.3%+19.024.3%296
54.9%
117‑118Phalanx XXII2479+33−3446.8%+23.024.5%310
49.8%
117‑118Thor's Hammer 2.28 32-bit2479+29−2948.6%+10.128.8%403
75.3%
119Tytan 9.32465+29−2950.4%−1.824.8%447
53.5%
120Glass 1.32463+27−2750.9%−5.231.9%477
77.4%
121Flux 2.22449+25−2548.7%+8.828.9%546
59.5%
122‑123Aice 0.99.22444+27−2746.9%+21.828.0%478
50.3%
122‑123WChess 1.62444+32−3247.5%+15.133.1%317
55.4%
124Amundsen 0.802441+27−2747.1%+20.832.4%460
53.9%
125Popochin 2.92439+41−4146.2%+32.032.4%210
52.1%
126Chezzz 1.0.32437+33−3351.8%−14.929.3%304
51.5%
127Asterisk 0.62436+21−2149.7%+1.827.2%801
60.5%
128KnightX 1.922432+29−2950.8%−6.726.1%429
56.1%
129Arion 1.72429+27−2753.6%−28.429.1%481
75.9%
130Zeus 1.272413+34−3452.1%−22.223.2%328
51.7%
131Cheese 1.32412+20−2046.5%+26.328.7%894
55.7%
132Anechka 0.082410+23−2345.8%+31.326.2%682
53.4%
133Natwarlal 0.142408+22−2347.0%+21.523.6%721
60.5%
134‑136Ant 2006-F2404+27−2747.2%+18.025.2%515
48.5%
134‑136Averno 0.812404+31−3148.9%+6.926.1%357
51.8%
134‑136Joker 1.1.142404+23−2250.9%−6.927.7%686
63.0%
137Matilde 20082396+40−3957.0%−47.432.4%213
63.3%
138Pawny 0.162386+39−3855.8%−41.325.2%234
56.2%
139Butcher 1.60n12382+33−3347.2%+17.533.9%307
58.7%
140AliChess 4.202376+41−4147.4%+20.021.2%212
70.1%
141Chispa 4.0.32363+23−2349.2%+6.526.9%661
61.2%
142Waxman 20092359+24−2449.1%+4.529.0%618
63.9%
143EXchess 5.01b2352+30−3046.2%+22.832.2%369
54.1%
144Sungorus 1.3 32-bit2349+35−3551.5%−8.124.1%291
67.1%
145Ayito 0.2.9942339+28−2845.5%+31.222.6%468
51.1%
146‑147Feuerstein 0.4.6.12338+22−2248.7%+8.827.5%719
50.7%
146‑147KMTChess 1.2.1 64-bit2338+40−4054.6%−35.128.7%216
64.4%
148Gibbon 2.52a2330+20−2051.4%−12.627.8%874
61.8%
149ChessAlex 2.0r42325+24−2449.0%+4.629.0%589
53.5%
150Uralochka 1.1b2324+21−2149.0%+6.626.4%812
75.8%
151‑152BlackBishop 1.02313+23−2347.9%+12.927.1%653
49.7%
151‑152ZCT 0.3.24512313+27−2749.4%+3.825.5%478
52.0%
153EveAnn 1.622312+34−3449.0%+3.227.3%311
59.1%
154RattateChess Bologna 20072307+25−2552.1%−15.525.3%576
55.4%
155‑156Atlas 2.202304+36−3650.4%−5.221.5%275
49.2%
155‑156Neurosis 2.52304+22−2250.0%−0.931.5%692
59.9%
157Latista (Sinobyl) 1.52299+32−3150.7%−7.624.4%361
51.6%
158Alf 1.092298+25−2549.6%−0.329.3%566
51.6%
159Alex 2.032297+32−3249.9%+0.223.9%348
55.1%
160Mediocre 0.342295+29−2949.2%+4.022.1%443
50.9%
161Buzz 0.08 32-bit2294+28−2851.1%−7.325.4%472
65.6%
162OBender 3.2.4.22287+22−2249.9%+0.729.1%738
62.6%
163Atak 6.52281+26−2650.5%−4.924.0%550
57.6%
164Lime 662278+24−2451.6%−14.322.8%614
54.5%
165NagaSkaki 5.122276+22−2249.9%+0.728.4%687
77.9%
166Bearded 06_292261+32−3249.9%+2.125.7%338
52.0%
167OliThink 5.1.92260+30−3046.6%+27.421.3%417
68.8%
168Parrot 07.07.222249+27−2750.3%−1.822.3%503
69.0%
169TJchess 0.1212241+21−2145.2%+36.524.5%842
62.9%
170Prophet 2.02236+24−2446.5%+25.122.3%640
53.3%
171Adam 3.22234+33−3351.2%−9.722.2%329
73.4%
172Clarabit 1.002221+23−2347.7%+13.030.4%662
86.2%
173Ifrit j2.92194+41−4150.5%−3.018.1%215
66.2%
174FireFly 2.5.42183+37−3751.7%−16.818.9%265
57.3%
175BikJump 2.012179+23−2350.5%−3.329.6%665
66.9%
176BigLion 2.23x2171+24−2544.8%+37.127.7%588
63.9%
177Mustang 4.972164+31−3145.5%+31.232.2%367
54.0%
178Matheus 2.32162+30−3044.0%+44.221.2%405
73.7%
179ECE 1.12145+41−4243.9%+45.819.6%214
69.2%
180Monarch 1.72132+26−2642.0%+72.120.1%613
73.6%
181BibiChess 0.52118+37−3744.9%+35.322.2%266
71.8%
182Schola 1.1.02101+40−4048.6%+11.825.9%216
63.8%
183Heracles 0.6.162092+33−3347.8%+17.227.8%324
76.9%
184Smash 1.0.32075+31−3140.4%+76.318.4%403
56.0%
185Marvin 1.3.02071+28−2940.8%+68.723.0%457
73.2%
186Rival 1.182059+29−3042.7%+51.926.7%412
78.2%
187Micro-Max 4.8 (DM-PII)2044+26−2648.2%+14.625.1%517
71.4%
188Reger 0.092029+41−4237.4%+90.323.7%215
73.9%
189Clueless 1.42012+25−2637.5%+99.917.9%605
54.5%
190Warrior 1.0.32010+34−3441.3%+65.324.8%311
70.4%
191‑192Slibo 0.4.81994+43−4528.1%+182.912.2%237
50.0%
191‑192Surprise 4.3b131994+31−3236.3%+107.919.3%394

Results matrix

All engines (top 12, best versions only)
#NameELO1
Rybka
2
Stock
3
Naum
4
Deep
5
Deep
6
Zappa
7
Spark
8
Komod
9
Think
10
Deep
11
Hiarc
12
Toga
1Rybka 4 64-bit 4CPU3261 51.5 − 35.5
+22−6=59
+7		32 − 25
+12−5=40
−41		43.5 − 12.5
+31−0=25
+38		 40 − 13
+29−2=22
−22		15 − 5
+11−1=8
−31		1 − 1
+0−0=2
−212		23.5 − 4.5
+20−1=7
+28		1.5 − 1.5
+1−1=1
−217		  
2Stockfish 1.7.1 64-bit 4CPU321835.5 − 51.5
+6−22=59
−7		 30 − 23
+14−7=32
+4		53.5 − 24.5
+32−3=43
+12		 38 − 15
+25−2=26
−12		15 − 5
+11−1=8
+15		1 − 1
+0−0=2
−169		 42 − 10
+35−3=14
+36		46 − 16
+33−3=26
−54		 
3Naum 4.2 64-bit 4CPU318725 − 32
+5−12=40
+41		23 − 30
+7−14=32
−4		 28.5 − 25.5
+15−12=27
−48		 15 − 9
+9−3=12
−36		14.5 − 5.5
+10−1=9
+24		3 − 0
+3−0=0
+INF		 37.5 − 15.5
+27−5=21
−24		38.5 − 12.5
+29−3=19
−8		 
4Deep Shredder 12 64-bit OA On 4CPU312312.5 − 43.5
+0−31=25
−38		24.5 − 53.5
+3−32=43
−12		25.5 − 28.5
+12−15=27
+48		  2 − 2
+1−1=2
−49		 2.5 − 1.5
+1−0=3
+9		34.5 − 16.5
+24−6=21
+23		43 − 26
+27−10=32
−19		72.5 − 31.5
+46−5=53
+3		36.5 − 14.5
+27−5=19
+25
5Deep Fritz 11 4CPU3096     23.5 − 16.5
+11−4=25
+25		   24 − 13
+13−2=22
+18		 27 − 13
+19−5=16
+23
6Zappa Mexico II 64-bit 4CPU307413 − 40
+2−29=22
+22		15 − 38
+2−25=26
+12		9 − 15
+3−9=12
+36		2 − 2
+1−1=2
+49		16.5 − 23.5
+4−11=25
−25		  0 − 3
+0−3=0
−INF		21.5 − 23.5
+11−13=21
−53		47.5 − 29.5
+27−9=41
+23		17 − 15
+9−7=16
−46		33 − 20
+22−9=22
+10
7Spark 0.5 64-bit 4CPU30715 − 15
+1−11=8
+31		5 − 15
+1−11=8
−15		5.5 − 14.5
+1−10=9
−24		    13.5 − 6.5
+9−2=9
+87		 12 − 8
+8−4=8
+21		  
8Komodo 1.2 64-bit30491 − 1
+0−0=2
+212		1 − 1
+0−0=2
+169		0 − 3
+0−3=0
−INF		1.5 − 2.5
+0−1=3
−9		 3 − 0
+3−0=0
+INF		6.5 − 13.5
+2−9=9
−87		  1 − 1
+1−1=0
−20		 0.5 − 0.5
+0−0=1
−11
9Thinker 5.4C Inert 64-bit 4CPU30344.5 − 23.5
+1−20=7
−28		  16.5 − 34.5
+6−24=21
−23		 23.5 − 21.5
+13−11=21
+53		   31 − 25
+23−17=16
+33		36.5 − 24.5
+21−9=31
+33		33.5 − 25.5
+22−14=23
+17
10Deep Sjeng WC2008 64-bit 4CPU30291.5 − 1.5
+1−1=1
+217		10 − 42
+3−35=14
−36		15.5 − 37.5
+5−27=21
+24		26 − 43
+10−27=32
+19		13 − 24
+2−13=22
−18		29.5 − 47.5
+9−27=41
−23		8 − 12
+4−8=8
−21		1 − 1
+1−1=0
+20		25 − 31
+17−23=16
−33		 17.5 − 14.5
+10−7=15
+6		34 − 21
+24−11=20
+55
11Hiarcs 12.1 4CPU3009 16 − 46
+3−33=26
+54		12.5 − 38.5
+3−29=19
+8		31.5 − 72.5
+5−46=53
−3		 15 − 17
+7−9=16
+46		  24.5 − 36.5
+9−21=31
−33		14.5 − 17.5
+7−10=15
−6		 19 − 13
+12−6=14
+58
12Toga II 1.4.1SE 4CPU3007   14.5 − 36.5
+5−27=19
−25		13 − 27
+5−19=16
−23		20 − 33
+9−22=22
−10		 0.5 − 0.5
+0−0=1
+11		25.5 − 33.5
+14−22=23
−17		21 − 34
+11−24=20
−55		13 − 19
+6−12=14
−58		 
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
Dee
6
Zap
7
Spa
8
Kom
9
Thi
10
Dee
11
Hia
12
Tog
1Rybka 4 64-bit 4CPU3261 99.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 1.7.1 64-bit 4CPU32180.3 97.9100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Naum 4.2 64-bit 4CPU31870.02.1 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Deep Shredder 12 64-bit OA On 4CPU31230.00.00.0 94.2100.099.1100.0100.0100.0100.0100.0
5Deep Fritz 11 4CPU30960.00.00.05.8 91.383.198.4100.0100.0100.0100.0
6Zappa Mexico II 64-bit 4CPU30740.00.00.00.08.7 54.893.1100.0100.0100.0100.0
7Spark 0.5 64-bit 4CPU30710.00.00.00.916.945.2 82.495.697.699.899.9
8Komodo 1.2 64-bit30490.00.00.00.01.66.917.6 80.187.298.899.3
9Thinker 5.4C Inert 64-bit 4CPU30340.00.00.00.00.00.04.419.9 66.398.699.5
10Deep Sjeng WC2008 64-bit 4CPU30290.00.00.00.00.00.02.412.833.7 97.198.9
11Hiarcs 12.1 4CPU30090.00.00.00.00.00.00.21.21.42.9 59.1
12Toga II 1.4.1SE 4CPU30070.00.00.00.00.00.00.10.70.51.140.9 
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

265'503 games (51.27 MB)

All games with comments

265'503 games (158.57 MB)

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

Various statistics

Created in 2005-2008 by CCRL team
Last games added on July 3, 2010