CCRL 40/40
Downloads and Statistics
August 31, 2010
Testing summary:
Total: 269'665 games
played by 875 programs
37814 CPU days (X2 4600+)

White wins: 96'456 (35.8%)
Black wins: 71'403 (26.5%)
Draws: 101'806 (37.8%)
White score: 54.6%

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 August 31, 2010 with Bayeselo based on 269'665 games
RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
ELO+
1Rybka 4 64-bit 4CPU3263+21−2172.6%−151.943.1%787 
100.0%
2Stockfish 1.7.1 64-bit 4CPU3216+20−1962.6%−82.650.4%804
98.4%
3Naum 4.2 64-bit 4CPU3186+21−2160.5%−67.950.0%688
100.0%
4Deep Shredder 12 64-bit OA On 4CPU3124+17−1657.2%−46.246.1%1154
95.2%
5Deep Fritz 11 4CPU3095+29−2954.2%−27.355.2%335
75.9%
6Critter 0.80 64-bit3078+36−3561.0%−73.933.3%264
58.2%
7Zappa Mexico II 64-bit 4CPU3074+13−1354.5%−29.747.5%2013
53.9%
8Spark 0.5 64-bit 4CPU3072+29−2942.6%+49.846.9%360
83.4%
9Komodo 1.2 64-bit3055+18−1843.1%+42.348.7%916
95.9%
10Thinker 5.4C Inert 64-bit 4CPU3032+16−1650.3%−1.338.1%1370
66.1%
11Deep Sjeng WC2008 64-bit 4CPU3028+14−1446.9%+20.139.8%1684
97.0%
12Hiarcs 12.1 4CPU3008+15−1542.7%+46.245.4%1414
55.7%
13Toga II 1.4.1SE 4CPU3007+13−1350.2%−0.241.6%1891
73.7%
14Bright 0.4a 4CPU3001+15−1550.2%−0.840.6%1472
95.3%
15Hannibal 1.0a 64-bit2967+35−3556.3%−43.138.3%264
75.2%
16Loop M1-T 64-bit 4CPU2954+12−1243.3%+42.445.1%2422
65.7%
17Gull 0.11a 32-bit2948+21−2146.9%+17.247.3%693
52.4%
18Protector 1.3.3 64-bit2947+31−3149.4%+5.044.1%311
61.7%
19Onno 1.2.70 64-bit2940+30−3142.3%+51.042.9%336
55.6%
20Deep Junior 11.1a 32-bit 1CPU2938+21−2142.4%+47.447.3%708
57.9%
21Crafty 23.3 64-bit 4CPU2933+39−4036.7%+87.637.1%210
98.1%
22Twisted Logic 20100131x 64-bit2880+26−2652.3%−18.234.7%484
73.1%
23SmarThink 1.20 64-bit2869+26−2653.8%−27.533.3%480
84.0%
24Ktulu 92853+16−1740.5%+63.439.2%1216
69.4%
25Spike 1.2 Turin2848+7−743.8%+40.939.8%8046
89.1%
26Scorpio 2.0 4CPU2834+22−2234.0%+110.036.8%712
65.5%
27‑28Bison 9.112828+17−1744.4%+37.538.6%1126
51.1%
27‑28Delfi 5.4 2CPU2828+19−1940.9%+62.735.7%983
54.7%
29Chessmaster 11 2CPU2825+35−3547.5%+15.739.6%260
77.7%
30Booot 4.15.12806+33−3444.6%+34.744.6%278
51.8%
31Chess Tiger 2007.12805+11−1144.4%+37.342.7%2810
58.1%
32‑33Chronos 1.9.8 64-bit2801+38−3848.6%+8.439.8%216
50.9%
32‑33Frenzee Feb08 32-bit2801+14−1445.1%+32.237.9%1759
61.6%
34Daydreamer 1.75 32-bit2796+28−2854.2%−27.544.1%383
74.2%
35Umko 0.8 32-bit2781+35−3552.3%−20.040.2%261
63.0%
36Movei 00.8.438 (10 10 10)2775+13−1348.2%+8.938.7%2140
85.4%
37Alaric 7072765+13−1349.5%+3.135.1%2032
58.8%
38BugChess2 1.6.4 32-bit2762+23−2348.1%+11.741.0%624
81.7%
39‑40Cyrano 0.6b172750+16−1647.1%+17.741.5%1240
47.9%
39‑40E.T. Chess 13.01.082750+16−1649.8%+0.637.8%1388
53.1%
41Colossus 2008b2749+15−1548.8%+8.439.4%1484
60.4%
42Pharaon 3.5.1 2CPU2744+33−3332.2%+136.226.9%357
52.2%
43Slow Chess Blitz WV2.12743+12−1248.5%+10.137.1%2167
80.4%
44Ruffian 2.1.02735+16−1647.4%+19.335.9%1366
64.4%
45WildCat 82731+16−1648.5%+8.337.7%1204
61.4%
46Hamsters 0.7.12727+18−1849.6%+2.941.0%1017
58.1%
47Gandalf 62725+13−1343.9%+41.335.8%2225
63.6%
48Pro Deo 1.22721+17−1748.9%+4.630.5%1179
55.7%
49Sloppy 0.2.3 64-bit2718+35−3550.0%+0.128.9%270
71.7%
50Deuterium 09.01.26.4922705+24−2451.1%−7.639.7%544
58.9%
51Alfil 8.1.12702+15−1550.8%−8.532.9%1583
55.8%
52‑53Aristarch 4.502701+14−1446.1%+27.933.1%1825
48.5%
52‑53N2 0.4 64-bit2701+26−2652.1%−15.933.3%480
53.6%
54The Baron 1.8.12700+24−2449.5%+1.231.6%608
56.7%
55Pseudo 0.7c2697+16−1650.9%−5.737.8%1370
53.2%
56Petir 4.392696+26−2650.2%−3.939.5%483
60.9%
57Arasan 11.6 64-bit2690+33−3351.6%−11.027.6%312
64.5%
58Brutus 8.05 32-bit2681+29−2945.9%+24.138.5%379
53.1%
59Jonny 2.832680+17−1746.9%+19.132.5%1245
57.7%
60Amyan 1.722677+23−2353.4%−23.531.0%662
76.5%
61Rotor 0.52666+19−1949.5%+2.637.9%919
66.1%
62SOS 5.12661+17−1746.2%+23.435.6%1159
51.6%
63Anaconda 2.0.12660+28−2848.0%+11.735.8%422
57.4%
64Dirty 6J-222656+30−3052.5%−19.533.8%373
60.7%
65AnMon 5.662651+26−2650.7%−5.231.3%508
51.8%
66Tornado 3.21a 32-bit2650+38−3845.8%+27.840.7%216
63.0%
67Ufim 8.022643+17−1749.6%−0.131.3%1251
85.2%
68DanaSah 4.242630+18−1851.8%−12.737.1%1057
62.9%
69GarboChess 2.202626+17−1749.5%+2.535.3%1109
74.2%
70Nimzo 82614+32−3342.2%+55.833.8%328
58.1%
71LittleThought 1.052 64-bit2609+35−3555.2%−38.525.0%288
50.6%
72Little Goliath Evolution 3.122608+20−2045.7%+29.232.3%882
53.5%
73Hermann 2.42607+23−2350.1%−0.228.7%627
51.1%
74Tao 5.62606+23−2349.0%+7.627.2%666
76.3%
75‑76Gaviota 0.74.41 64-bit2591+34−3545.5%+29.728.5%288
49.6%
75‑76Xpdnt 0910072591+23−2353.4%−23.034.2%653
58.2%
77‑78BBChess 1.3b2588+25−2550.7%−4.537.8%500
48.3%
77‑78Trace 1.362588+29−2949.9%+1.029.3%420
52.3%
79‑80Cerebro 3.03d2587+19−1949.9%−1.330.1%969
51.3%
79‑80Philou 3.1.4.12587+24−2444.6%+38.533.6%601
55.2%
81‑83Anatoli 0.35k2585+18−1851.4%−11.332.0%1086
50.5%
81‑83Matacz 1.32585+29−2947.4%+17.633.0%382
49.6%
81‑83SpiderChess 0706032585+28−2851.0%−3.141.2%408
51.6%
84‑85Pepito 1.59 32-bit2584+24−2449.4%+2.633.9%555
50.5%
84‑85Quark 2.352584+24−2448.5%+8.831.2%605
53.2%
86Yace 0.99.872583+24−2450.6%−3.127.8%616
64.9%
87Counter 1.22576+26−2649.1%+5.742.3%454
70.2%
88Bruja 1.9.1 64-bit2562+40−4049.3%+4.225.5%216
56.3%
89NanoSzachy 3.82559+23−2352.9%−23.728.3%650
54.0%
90‑91Delphil 1.9g2557+29−2950.9%−7.238.4%378
49.2%
90‑91Pupsi2 0.082557+31−3145.5%+33.331.5%356
80.1%
92Typhoon 1.00-3582542+19−1948.9%+6.332.8%964
58.0%
93PostModernist 10162538+27−2746.1%+25.928.1%459
53.9%
94Homer 2.012536+23−2349.4%+3.132.2%636
57.3%
95Snitch 1.6.2 32-bit2533+25−2645.8%+28.429.0%527
56.0%
96Kiwi 0.6d2530+25−2547.0%+18.730.1%574
56.9%
97Muse 0.899b2527+23−2448.0%+15.427.9%628
57.5%
98KnightDreamer 3.32523+37−3748.8%+10.832.5%243
64.2%
99Queen 4.032515+21−2149.8%−0.434.8%775
52.4%
100Dragon 4.62514+21−2146.3%+25.234.0%761
53.2%
101Diablo 0.5.12513+23−2350.8%−4.532.5%643
54.2%
102Djinn 0.925x2511+25−2646.6%+22.827.7%538
53.2%
103RomiChess P3k 32-bit2510+20−2049.3%+4.132.8%863
59.6%
104Gaia 3.5 32-bit2506+25−2548.0%+14.128.7%544
50.9%
105Rodin 3.02505+27−2749.0%+8.427.0%493
55.1%
106Comet B682503+25−2645.8%+29.725.3%549
54.1%
107Gosu 0.162501+24−2547.1%+20.626.6%586
54.1%
108Pawny 0.1.9 64-bit2499+38−3843.1%+47.227.1%240
54.2%
109Amy 0.87b2496+31−3147.5%+20.626.2%363
54.2%
110‑111Horizon 4.42494+20−2050.0%−0.726.5%898
50.1%
110‑111Patzer 3.802494+31−3148.5%+12.124.7%360
51.5%
112GreKo 6.302493+37−3747.9%+14.332.5%237
54.6%
113Sage 3.532491+19−1950.8%−5.728.0%957
56.6%
114Sorgenkind 0.42489+17−1752.5%−15.928.7%1163
50.2%
115Amateur 2.822488+23−2346.1%+27.524.6%666
62.4%
116Ares 1.0042482+28−2848.6%+8.826.6%436
55.5%
117Phalanx XXII2480+31−3148.6%+9.724.6%358
52.2%
118Thor's Hammer 2.28 32-bit2478+29−3048.8%+9.828.7%401
76.6%
119Tytan 9.32463+29−2950.4%−1.324.8%447
55.0%
120OliThink 5.3.02460+37−3848.8%+9.825.1%251
53.6%
121Glass 1.32458+26−2651.1%−6.631.1%501
71.1%
122Flux 2.22448+25−2548.7%+9.028.9%546
56.8%
123WChess 1.062444+32−3247.5%+15.433.1%317
56.4%
124Aice 0.99.22441+26−2646.8%+21.827.6%500
53.1%
125Popochin 2.92439+41−4146.2%+32.232.4%210
54.2%
126Amundsen 0.802436+26−2646.0%+27.731.6%500
52.0%
127‑129Arion 1.72435+25−2552.8%−22.529.5%549
51.2%
127‑129Asterisk 0.62435+21−2149.6%+1.727.2%799
50.1%
127‑129Chezzz 1.0.32435+32−3251.8%−15.228.7%328
50.6%
130Eeyore 1.502434+37−3752.0%−13.126.6%248
52.8%
131KnightX 1.922433+27−2750.8%−7.227.3%473
80.6%
132Averno 0.812415+30−3050.4%−4.526.2%381
53.4%
133Zeus 1.272413+34−3452.1%−22.223.2%328
56.8%
134Cheese 1.32409+19−1946.4%+27.328.6%990
54.2%
135‑136Natwarlal 0.142408+23−2347.1%+20.623.5%719
50.5%
135‑136Sungorus 1.4 64-bit2408+39−4041.4%+62.823.2%228
51.4%
137Anechka 0.082407+22−2246.1%+29.426.9%720
58.1%
138‑139Ant 2006-F2403+26−2647.1%+19.024.5%539
51.0%
138‑139Joker 1.1.142403+23−2350.9%−6.827.7%686
63.3%
140Matilde 20082395+40−3957.0%−47.432.4%213
67.0%
141AliChess 4.212382+40−4143.8%+40.730.5%203
58.4%
142Butcher 1.60n12376+30−3046.6%+22.734.6%355
66.7%
143Chispa 4.0.32368+22−2249.1%+5.827.3%747
70.7%
144Waxman 20092360+22−2248.2%+10.330.1%714
66.4%
145EXchess 5.01b2352+30−3046.2%+22.832.2%369
73.8%
146Ayito 0.2.9942338+28−2845.5%+31.722.6%468
52.9%
147KMTChess 1.2.1 64-bit2337+38−3854.0%−29.727.9%240
55.2%
148Feuerstein 0.4.6.12334+21−2148.1%+12.727.3%777
65.2%
149Atak 6.72326+35−3551.2%−8.035.4%260
50.4%
150Gibbon 2.52a2325+19−1951.3%−10.229.3%958
54.3%
151ChessAlex 2.0r42324+24−2449.0%+4.329.0%589
53.7%
152Uralochka 1.1b2322+21−2149.1%+6.226.5%808
70.5%
153‑154EveAnn 1.622311+34−3449.0%+3.627.3%311
50.2%
153‑154ZCT 0.3.24512311+27−2749.4%+4.025.5%478
57.1%
155‑156Atlas 2.202307+34−3449.8%−0.723.6%313
50.8%
155‑156Neurosis 2.52307+21−2151.0%−8.031.4%760
52.1%
157BlackBishop 1.02306+21−2147.6%+16.427.3%758
51.2%
158RattateChess Bologna 20072305+25−2552.1%−14.925.3%576
64.5%
159Latista (Sinobyl) 1.52298+32−3250.7%−8.024.4%361
50.5%
160Alf 1.092297+25−2549.6%−0.229.3%566
57.2%
161Mediocre 0.342294+27−2750.2%−2.222.3%489
52.0%
162Buzz 0.08 32-bit2293+28−2851.1%−7.525.4%472
65.7%
163OBender 3.2.4.22286+22−2250.0%+0.029.2%737
52.9%
164Alex 2.032284+30−3049.3%+4.824.7%384
68.5%
165Lime 662275+24−2451.3%−11.722.8%637
51.3%
166NagaSkaki 5.122274+22−2250.0%−0.528.9%703
72.4%
167KnockOut 0.7.12264+27−2757.0%−50.426.7%483
59.4%
168Bearded 06_292259+32−3249.9%+2.025.7%338
66.5%
169Parrot 07.01.162248+37−3747.1%+21.520.9%273
62.0%
170‑171Adam 3.22240+31−3051.7%−12.121.9%388
51.0%
170‑171TJchess 0.1212240+20−2045.6%+33.224.7%906
57.3%
172Prophet 2.02237+23−2346.7%+23.723.2%664
85.8%
173Clarabit 1.002219+22−2347.8%+12.330.0%686
80.5%
174Ifrit j2.92199+41−4150.5%−4.218.1%215
69.4%
175FireFly 2.5.62186+25−2545.4%+30.024.4%581
57.1%
176BikJump 2.012183+22−2251.0%−6.428.7%715
77.2%
177BigLion 2.23x2171+24−2544.8%+36.527.7%588
66.3%
178ChessMind 0.822161+37−3752.4%−17.019.5%272
53.7%
179Mustang 4.972159+30−3045.3%+32.632.2%391
51.9%
180Matheus 2.32158+28−2943.5%+48.120.8%453
52.5%
181ECE 1.12156+39−3945.2%+36.918.8%240
86.3%
182Monarch 1.72130+25−2542.0%+71.519.9%637
62.8%
183Kurt 2710092121+41−4147.0%+15.826.1%203
52.4%
184‑185BibiChess 0.52119+33−3344.5%+38.625.2%326
51.3%
184‑185Schola 1.1.02119+38−3849.2%+5.827.3%242
78.7%
186Heracles 0.6.162100+30−3045.9%+29.827.4%398
92.4%
187Marvin 1.3.02070+28−2940.8%+67.823.0%457
65.7%
188Smash 1.0.32061+29−3038.1%+95.117.7%451
57.8%
189‑190Carballo 0.4 32-bit2056+40−4131.9%+130.831.9%226
50.4%
189‑190Rival 1.182056+29−2942.1%+56.526.4%436
78.5%
191Micro-Max 4.8 (DM-PII)2041+26−2648.2%+14.625.1%517
78.1%
192Reger 0.092021+38−3935.2%+108.922.9%253
67.4%
193Clueless 1.42010+25−2637.5%+99.917.9%605
53.9%
194Warrior 1.0.32008+34−3441.3%+65.524.8%311
75.4%
195Surprise 4.3b131993+31−3236.3%+107.519.3%394
64.7%
196Slibo 0.4.81982+43−4427.3%+190.512.0%249

Results matrix

All engines (top 12, best versions only)
#NameELO123456789101112
1Rybka 4 64-bit 4CPU3263 51.5 − 35.5
+22−6=59
+3
32 − 25
+12−5=40
−44
43.5 − 12.5
+31−0=25
+37
  40 − 13
+29−2=22
−24
48.5 − 11.5
+38−1=21
+18
52 − 17
+37−2=30
−46
65 − 12
+55−2=20
+26
35.5 − 8.5
+31−4=9
+2
 
2Stockfish 1.7.1 64-bit 4CPU321635.5 − 51.5
+6−22=59
−3
 30 − 23
+14−7=32
+6
53.5 − 24.5
+32−3=43
+15
  38 − 15
+25−2=26
−10
15 − 5
+11−1=8
+18
25 − 8
+19−2=12
+8
 42 − 10
+35−3=14
+37
46 − 16
+33−3=26
−53
3Naum 4.2 64-bit 4CPU318625 − 32
+5−12=40
+44
23 − 30
+7−14=32
−6
 28.5 − 25.5
+15−12=27
−46
  15 − 9
+9−3=12
−35
14.5 − 5.5
+10−1=9
+26
81 − 33
+53−5=56
−4
 37.5 − 15.5
+27−5=21
−24
38.5 − 12.5
+29−3=19
−8
4Deep Shredder 12 64-bit OA On 4CPU312412.5 − 43.5
+0−31=25
−37
24.5 − 53.5
+3−32=43
−15
25.5 − 28.5
+12−15=27
+46
   2 − 2
+1−1=2
−50
 41 − 25
+20−4=42
−2
34.5 − 16.5
+24−6=21
+20
43 − 26
+27−10=32
−21
72.5 − 31.5
+46−5=53
+1
5Deep Fritz 11 4CPU3095      23.5 − 16.5
+11−4=25
+26
   24 − 13
+13−2=22
+18
 
6Critter 0.80 64-bit3078            
7Zappa Mexico II 64-bit 4CPU307413 − 40
+2−29=22
+24
15 − 38
+2−25=26
+10
9 − 15
+3−9=12
+35
2 − 2
+1−1=2
+50
16.5 − 23.5
+4−11=25
−26
   39 − 36
+15−12=48
−8
21.5 − 23.5
+11−13=21
−55
47.5 − 29.5
+27−9=41
+22
17 − 15
+9−7=16
−47
8Spark 0.5 64-bit 4CPU307211.5 − 48.5
+1−38=21
−18
5 − 15
+1−11=8
−18
5.5 − 14.5
+1−10=9
−26
     36.5 − 25.5
+20−9=33
+36
 12 − 8
+8−4=8
+19
 
9Komodo 1.2 64-bit305517 − 52
+2−37=30
+46
8 − 25
+2−19=12
−8
33 − 81
+5−53=56
+4
25 − 41
+4−20=42
+2
  36 − 39
+12−15=48
+8
25.5 − 36.5
+9−20=33
−36
  1 − 1
+1−1=0
−27
 
10Thinker 5.4C Inert 64-bit 4CPU303212 − 65
+2−55=20
−26
  16.5 − 34.5
+6−24=21
−20
  23.5 − 21.5
+13−11=21
+55
   31 − 25
+23−17=16
+34
36.5 − 24.5
+21−9=31
+34
11Deep Sjeng WC2008 64-bit 4CPU30288.5 − 35.5
+4−31=9
−2
10 − 42
+3−35=14
−37
15.5 − 37.5
+5−27=21
+24
26 − 43
+10−27=32
+21
13 − 24
+2−13=22
−18
 29.5 − 47.5
+9−27=41
−22
8 − 12
+4−8=8
−19
1 − 1
+1−1=0
+27
25 − 31
+17−23=16
−34
 17.5 − 14.5
+10−7=15
+6
12Hiarcs 12.1 4CPU3008 16 − 46
+3−33=26
+53
12.5 − 38.5
+3−29=19
+8
31.5 − 72.5
+5−46=53
−1
  15 − 17
+7−9=16
+47
  24.5 − 36.5
+9−21=31
−34
14.5 − 17.5
+7−10=15
−6
 
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)
#NameELO123456789101112
1Rybka 4 64-bit 4CPU3263 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 1.7.1 64-bit 4CPU32160.0 98.4100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Naum 4.2 64-bit 4CPU31860.01.6 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Deep Shredder 12 64-bit OA On 4CPU31240.00.00.0 95.298.5100.099.8100.0100.0100.0100.0
5Deep Fritz 11 4CPU30950.00.00.04.8 75.990.984.998.6100.0100.0100.0
6Critter 0.80 64-bit30780.00.00.01.524.1 58.259.285.898.599.2100.0
7Zappa Mexico II 64-bit 4CPU30740.00.00.00.09.141.8 53.994.7100.0100.0100.0
8Spark 0.5 64-bit 4CPU30720.00.00.00.215.140.846.1 83.498.599.3100.0
9Komodo 1.2 64-bit30550.00.00.00.01.414.25.316.6 95.998.5100.0
10Thinker 5.4C Inert 64-bit 4CPU30320.00.00.00.00.01.50.01.54.1 66.198.6
11Deep Sjeng WC2008 64-bit 4CPU30280.00.00.00.00.00.80.00.71.533.9 97.0
12Hiarcs 12.1 4CPU30080.00.00.00.00.00.00.00.00.01.43.0 
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

269'665 games (52.11 MB)

All games with comments

269'665 games (161.09 MB)
(Please don't use aggressive download managers)

Various statistics


Created in 2005-2008 by CCRL team
Last games added on August 31, 2010