CCRL 40/40
Downloads and Statistics
March 12, 2010
Testing summary:
Total: 238'941 games
played by 792 programs
33842 CPU days (X2 4600+)

White wins: 86'054 (36.0%)
Black wins: 63'694 (26.7%)
Draws: 89'193 (37.3%)
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 March 12, 2010 with Bayeselo based on 238'941 games
RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
ELO+−
1Rybka 3 64-bit 4CPU3233+16−1676.3%−183.137.2%1519 
100.0%
2Naum 4.1 64-bit 4CPU3171+31−3161.4%−75.143.2%329
90.0%
3Stockfish 1.6.3 64-bit 4CPU3146+25−2560.8%−70.643.5%494
81.3%
4Deep Shredder 12 64-bit OA On 4CPU3132+21−2061.4%−72.144.8%753
96.8%
5Deep Fritz 11 4CPU3098+29−2954.2%−27.355.2%335
93.3%
6Zappa Mexico II 64-bit 4CPU3074+13−1356.9%−44.046.7%1802
98.8%
7Spark 0.3 64-bit 4CPU3042+24−2447.6%+12.849.3%523
62.7%
8Thinker 5.4C Inert 64-bit 4CPU3037+17−1754.2%−30.039.2%1173
67.0%
9Deep Sjeng WC2008 64-bit 4CPU3032+16−1650.3%−4.440.5%1391
55.5%
10Komodo 1.0 64-bit3030+19−1953.6%−25.947.1%849
91.3%
11Hiarcs 12.1 4CPU3011+16−1644.2%+35.345.9%1269
54.3%
12Toga II 1.4.1SE 4CPU3010+13−1350.0%+0.641.6%1872
62.6%
13Bright 0.4a 4CPU3006+15−1550.4%−1.540.3%1499
100.0%
14Loop M1-T 64-bit 4CPU2956+12−1243.4%+42.845.1%2432
99.9%
15Onno 1.0 64-bit2921+18−1842.5%+51.741.5%962
75.0%
16Deep Junior 10 4CPU2913+13−1444.0%+42.435.3%1897
56.9%
17Crafty 23.1 64-bit 4CPU2910+31−3145.8%+29.837.0%330
51.4%
18Protector 1.3.2 32-bit2909+25−2544.4%+34.450.0%468
90.1%
19Critter 0.52b 32-bit2881+35−3551.9%−11.947.9%240
90.0%
20Ktulu 92855+18−1839.4%+69.739.4%1025
76.5%
21Spike 1.2 Turin2848+7−743.6%+40.540.0%7668
79.2%
22SmarThink 1.20 32-bit2839+19−1942.6%+49.738.3%914
61.3%
23Scorpio 2.0 4CPU2835+22−2234.0%+110.336.9%713
52.1%
24Twisted Logic 200909222834+19−1945.2%+30.044.2%891
66.2%
25Delfi 5.4 2CPU2828+19−1941.0%+63.535.6%985
53.2%
26Bison 9.112827+25−2552.3%−16.637.5%525
53.6%
27Chessmaster 11 2CPU2825+34−3547.5%+15.839.6%260
86.9%
28Chess Tiger 2007.12804+11−1144.2%+38.542.4%2861
67.1%
29Frenzee Feb08 32-bit2800+14−1445.0%+33.637.7%1817
66.8%
30Booot 4.15.02796+15−1543.8%+40.446.0%1348
96.6%
31Movei 00.8.438 (10 10 10)2778+13−1348.8%+5.138.6%2053
89.4%
32Alaric 7072766+14−1449.3%+4.535.4%1903
63.9%
33BugChess2 1.6.4 32-bit2761+25−2547.8%+13.042.6%491
71.2%
34Cyrano 0.6b172752+18−1847.0%+19.240.8%1037
55.6%
35E.T. Chess 13.01.082751+16−1550.7%−5.637.9%1388
61.7%
36Colossus 2008b2747+18−1848.8%+9.438.6%1041
55.7%
37Chronos 1.9.72745+23−2351.9%−12.545.3%567
59.6%
38Slow Chess Blitz WV2.12742+13−1348.3%+10.937.2%2145
53.7%
39Pharaon 3.5.1 2CPU2740+32−3331.9%+138.027.4%368
63.9%
40Ruffian 2.1.02734+16−1647.4%+19.335.9%1376
69.3%
41WildCat 72728+15−1546.1%+26.938.1%1506
67.6%
42Gandalf 62724+13−1343.7%+43.236.0%2199
54.7%
43Hamsters 0.72722+30−3046.4%+24.237.7%345
52.1%
44Pro Deo 1.22721+17−1748.9%+4.530.5%1179
72.9%
45Chiron 0.8.72712+23−2351.3%−9.234.4%636
77.1%
46Alfil 8.1.12701+15−1550.5%−6.433.0%1563
54.0%
47Aristarch 4.502700+14−1445.9%+30.233.2%1801
54.6%
48The Baron 1.8.12699+24−2449.3%+3.231.8%614
55.5%
49Pseudo 0.7c2697+15−1551.0%−6.737.9%1386
52.1%
50Petir 4.392696+27−2750.1%−3.840.0%435
53.6%
51Sloppy 0.2.2 32-bit2694+16−1647.4%+17.037.3%1272
56.0%
52Arasan 11.6 64-bit2691+40−4050.9%−7.724.1%216
56.9%
53Lemming 0.242686+32−3248.4%+11.137.5%307
64.8%
54Jonny 2.832679+16−1746.9%+19.332.5%1245
57.5%
55Amyan 1.722675+37−3655.0%−33.231.3%249
61.2%
56Rotor 0.52669+23−2348.2%+11.538.0%644
67.2%
57SOS 5.12663+17−1746.4%+21.735.8%1147
58.7%
58Anaconda 2.0.12659+27−2747.8%+12.835.9%426
66.9%
59Tornado 2.22650+29−2955.7%−43.337.7%409
52.2%
60AnMon 5.662649+26−2550.5%−3.430.9%514
58.9%
61Ufim 8.022646+18−1848.7%+5.832.1%1072
90.1%
62‑64Brutus 7.02b2626+24−2460.2%−71.535.8%576
48.0%
62‑64DanaSah 4.242626+19−1951.4%−10.037.4%903
52.1%
62‑64GarboChess 2.202626+17−1749.4%+3.434.8%1123
56.3%
65Viper 0.12622+36−3646.7%+22.431.9%260
57.6%
66Cerebro 3.01c2618+31−3147.5%+17.929.2%367
61.7%
67Nimzo 82611+32−3242.0%+58.033.7%338
56.4%
68Little Goliath Evolution 3.122608+20−2045.7%+29.232.4%890
54.5%
69Tao 5.62607+23−2348.2%+12.328.0%646
50.4%
70‑72Hermann 2.42606+23−2349.8%+1.829.3%651
51.5%
70‑72NanoSzachy 3.72606+39−3956.9%−52.827.3%231
49.7%
70‑72Xpdnt 0910072606+34−3454.9%−33.934.3%286
72.5%
73N2 0.12593+27−2754.9%−30.141.5%439
51.8%
74Trace 1.362592+30−3049.2%+5.230.3%390
54.6%
75Matacz 1.32589+28−2847.1%+20.732.5%412
53.1%
76BBChess 1.3b2588+25−2550.7%−4.437.8%500
56.2%
77Yace 0.99.872585+26−2649.1%+7.128.2%514
54.2%
78Quark 2.352583+24−2448.0%+12.231.3%569
52.8%
79‑80Pepito 1.59 32-bit2582+27−2749.2%+2.634.3%461
48.8%
79‑80SpiderChess 0706032582+31−3148.1%+16.940.6%323
55.5%
81Anatoli 0.35k2580+19−1950.7%−6.632.0%917
85.1%
82Counter 1.12564+22−2250.7%−7.738.5%646
55.2%
83Philou 3.0.02562+28−2949.4%+4.134.6%396
53.2%
84‑85Bruja 1.92560+28−2852.2%−14.235.8%402
50.8%
84‑85Delphil 1.9g2560+29−2950.9%−7.138.4%378
62.8%
86Kiwi 0.6d2553+30−3049.1%+2.032.5%378
56.9%
87Typhoon 1.00-3582549+22−2248.4%+10.034.4%704
71.2%
88‑89PostModernist 10162539+27−2746.1%+26.028.1%459
51.4%
88‑89Pupsi2 0.072539+21−2047.2%+19.830.2%809
51.8%
90Homer 2.012538+23−2349.2%+4.132.2%646
58.0%
91Snitch 1.6.2 32-bit2534+26−2645.3%+31.829.0%503
63.8%
92Muse 0.899b2528+27−2748.4%+11.928.3%470
60.4%
93KnightDreamer 3.32522+36−3648.0%+15.032.5%249
60.3%
94Dragon 4.62516+21−2146.3%+25.034.0%761
51.2%
95‑96Diablo 0.5.12515+24−2451.2%−6.832.6%559
51.5%
95‑96Djinn 0.925x2515+26−2646.4%+23.428.5%516
55.7%
97RomiChess P3k 32-bit2512+19−2049.1%+5.633.1%875
53.6%
98Queen 4.032511+21−2148.7%+7.136.0%733
52.7%
99Gaia 3.5 32-bit2510+25−2548.0%+14.628.7%544
62.1%
100Comet B682504+26−2645.8%+30.325.3%549
59.4%
101Gosu 0.162500+27−2746.3%+26.826.9%494
51.8%
102Amy 0.87b2499+33−3349.2%+8.225.7%319
53.7%
103‑104Patzer 3.802497+31−3148.5%+12.024.5%364
50.1%
103‑104Sorgenkind 0.42497+19−1952.2%−14.528.2%969
52.9%
105Sage 3.532496+20−2050.3%−2.227.3%865
51.6%
106‑108Amateur 2.822495+23−2346.2%+26.024.9%672
50.5%
106‑108Dirty ACCA32495+29−2945.9%+27.534.7%375
50.3%
106‑108GreKo 6.302495+37−3747.9%+13.732.5%237
51.3%
109Horizon 4.42494+20−2049.7%+1.226.3%878
52.9%
110Phalanx XXII2492+38−3847.5%+18.525.2%238
68.9%
111Thor's Hammer 2.28 32-bit2481+30−3048.8%+8.529.0%379
80.7%
112Glass 1.32462+27−2750.4%−1.432.2%466
52.0%
113Tytan 9.32461+30−3050.1%+1.424.6%399
71.6%
114Flux 2.22450+25−2548.7%+8.928.9%546
59.2%
115WChess 1.62445+32−3247.5%+14.933.1%317
52.2%
116LittleThought 1.03 32-bit2444+21−2147.5%+19.524.9%826
53.4%
117Aice 0.99.22442+28−2846.4%+25.628.4%454
53.6%
118Popochin 2.92440+41−4146.2%+32.232.4%210
52.0%
119Chezzz 1.0.32439+33−3351.8%−15.529.3%304
52.6%
120Asterisk 0.62437+21−2149.7%+1.827.2%801
59.5%
121Amundsen 0.802433+32−3348.3%+14.929.3%321
50.4%
122‑123KnightX 1.922432+29−2950.8%−5.926.1%429
50.8%
122‑123Rodin 2.3a2432+28−2853.2%−22.627.1%436
55.0%
124Arion 1.72430+27−2753.6%−28.529.1%481
83.8%
125Cheese 1.32412+21−2146.0%+29.329.0%806
53.4%
126Daydreamer 1.52411+31−3057.2%−56.533.7%377
54.3%
127‑128Anechka 0.082408+23−2345.1%+37.626.8%657
50.1%
127‑128Natwarlal 0.142408+23−2346.5%+25.123.4%696
54.0%
129Zeus 1.272406+36−3650.7%−10.823.4%303
51.4%
130Averno 0.812405+31−3148.9%+6.726.1%357
55.9%
131Joker 1.1.142402+23−2350.5%−3.127.8%654
53.1%
132Ant 2006-F2401+27−2846.4%+24.025.5%482
52.5%
133Matilde 20082399+40−3957.0%−46.832.4%213
72.1%
134Butcher 1.60n12383+39−3948.8%+7.434.7%216
78.4%
135Chispa 4.0.32365+24−2449.2%+5.626.9%629
69.2%
136Waxman 20092356+27−2750.1%−0.927.6%485
55.7%
137Ares 1.02353+33−3341.6%+57.229.4%316
51.3%
138‑139AliChess 4.062352+35−3544.3%+36.331.2%279
50.1%
138‑139EXchess 5.01b2352+30−3046.1%+24.232.3%368
56.9%
140KMTChess 1.2.1 64-bit2347+40−4054.6%−33.328.7%216
53.9%
141Feuerstein 0.4.6.12345+24−2449.0%+6.727.5%585
53.2%
142Ayito 0.2.9942343+29−2946.0%+27.823.2%436
65.2%
143Deuterium 06.08.25.042335+29−2945.0%+34.928.8%406
53.4%
144Gibbon 2.52a2334+22−2252.0%−16.928.1%716
63.9%
145‑146ChessAlex 2.0r42328+24−2449.0%+4.429.0%589
50.6%
145‑146Uralochka 1.1b2328+21−2249.2%+4.725.8%768
59.3%
147BlackBishop 1.02324+26−2648.4%+9.927.7%498
68.3%
148ZCT 0.3.24512314+28−2849.1%+5.926.2%447
52.9%
149EveAnn 1.622312+34−3448.9%+5.127.4%310
56.2%
150RattateChess Bologna 20072309+25−2552.1%−15.325.3%576
56.9%
151Atlas 2.202305+36−3650.4%−4.821.5%275
53.6%
152‑153Latista (Sinobyl) 1.52303+32−3150.8%−8.924.4%360
50.1%
152‑153Neurosis 2.52303+24−2449.7%+1.432.5%572
56.0%
154Alf 1.092300+25−2549.6%−0.429.3%566
55.2%
155Buzz 0.08 32-bit2298+28−2851.1%−7.825.4%472
56.8%
156Mediocre 0.342294+32−3249.4%+3.122.6%354
60.1%
157OBender 3.2.4.22289+22−2249.9%+0.729.3%706
50.8%
158Atak 6.52288+26−2550.5%−4.624.0%550
63.6%
159NagaSkaki 5.122282+25−2551.0%−7.328.2%567
54.6%
160Lime 662280+25−2550.5%−6.422.7%582
57.1%
161Pawny 0.132276+39−3955.3%−39.818.9%244
53.5%
162Sungorus 1.22274+28−2853.4%−24.428.3%446
63.1%
163OliThink 5.1.92267+29−3046.6%+28.021.3%417
66.0%
164Bearded 06_292257+34−3449.5%+5.525.2%306
60.1%
165Parrot 07.07.222252+27−2750.3%−2.622.3%503
67.1%
166TJchess 0.1212244+23−2344.5%+41.823.2%697
65.6%
167Prophet 2.02237+24−2445.5%+32.722.5%608
70.8%
168Clarabit 1.002228+23−2348.4%+8.030.3%638
78.8%
169Adam 3.12214+25−2547.5%+15.919.4%624
88.9%
170FireFly 2.5.42186+37−3751.7%−16.118.9%265
68.4%
171BikJump 2.012175+25−2549.8%+2.229.7%535
56.1%
172BigLion 2.23x2173+25−2544.8%+36.427.7%588
66.2%
173Matheus 2.32164+30−3044.0%+44.621.2%405
53.4%
174Mustang 4.972162+32−3245.6%+30.732.4%343
89.5%
175Monarch 1.72136+26−2642.6%+67.420.4%589
76.0%
176BibiChess 0.52120+37−3744.9%+35.522.2%266
73.5%
177Heracles 0.6.162103+36−3648.1%+14.228.2%262
84.5%
178Smash 1.0.32077+31−3140.4%+76.918.4%403
55.7%
179Marvin 1.3.02074+28−2940.8%+68.523.0%457
73.8%
180Rival 1.182061+29−3042.7%+52.526.7%412
77.6%
181Micro-Max 4.8 (DM-PII)2047+26−2648.2%+14.325.1%517
93.4%
182ECE 0.32019+26−2738.4%+89.420.7%535
58.6%
183Clueless 1.42015+25−2637.5%+99.617.9%605
54.2%
184Warrior 1.0.32013+34−3441.3%+65.124.8%311
55.6%
185Slibo 0.4.82009+44−4629.1%+172.812.3%227
65.8%
186Surprise 4.3b131997+31−3236.3%+107.719.3%394
 

Results matrix

All engines (top 12, best versions only)
#NameELO1
Rybka
2
Naum
3
Stock
4
Deep
5
Deep
6
Zappa
7
Spark
8
Think
9
Deep
10
Komod
11
Hiarc
12
Toga
1Rybka 3 64-bit 4CPU3233 33 − 16
+21−4=24
+42		33.5 − 18.5
+23−8=21
+6		29 − 16
+18−5=22
−12		27 − 13
+17−3=20
−29		39.5 − 14.5
+26−1=27
−20		 44.5 − 9.5
+38−3=13
+48		36 − 11
+27−2=18
−25		 25 − 7
+18−0=14
−44		39.5 − 10.5
+33−4=13
−10
2Naum 4.1 64-bit 4CPU317116 − 33
+4−21=24
−42		 28 − 20
+16−8=24
+25		23.5 − 19.5
+13−9=21
−10		 30.5 − 16.5
+18−4=25
−9		31 − 15
+23−7=16
−12		 37 − 10
+30−3=14
+62		 36 − 13
+27−4=18
−4		 
3Stockfish 1.6.3 64-bit 4CPU314618.5 − 33.5
+8−23=21
−6		20 − 28
+8−16=24
−25		 26.5 − 24.5
+14−12=25
0		  32.5 − 16.5
+19−3=27
−10		 32.5 − 15.5
+21−4=23
−5		 37.5 − 12.5
+29−4=17
+33		32 − 18
+19−5=26
−51
4Deep Shredder 12 64-bit OA On 4CPU313216 − 29
+5−18=22
+12		19.5 − 23.5
+9−13=21
+10		24.5 − 26.5
+12−14=25
0		   28.5 − 21.5
+15−8=27
−49		34.5 − 16.5
+24−6=21
+17		41.5 − 25.5
+26−10=31
−27		 72.5 − 31.5
+46−5=53
−4		35.5 − 14.5
+26−5=19
+15
5Deep Fritz 11 4CPU309813 − 27
+3−17=20
+29		    23.5 − 16.5
+11−4=25
+23		  24 − 13
+13−2=22
+19		  27 − 13
+19−5=16
+24
6Zappa Mexico II 64-bit 4CPU307414.5 − 39.5
+1−26=27
+20		16.5 − 30.5
+4−18=25
+9		  16.5 − 23.5
+4−11=25
−23		 17 − 15
+6−4=22
−15		21.5 − 23.5
+11−13=21
−50		45.5 − 28.5
+26−9=39
+25		 17 − 15
+9−7=16
−44		33 − 20
+22−9=22
+13
7Spark 0.3 64-bit 4CPU3042 15 − 31
+7−23=16
+12		16.5 − 32.5
+3−19=27
+10		21.5 − 28.5
+8−15=27
+49		 15 − 17
+4−6=22
+15		  16.5 − 15.5
+8−7=17
0		 43.5 − 40.5
+23−20=41
−20		 
8Thinker 5.4C Inert 64-bit 4CPU30379.5 − 44.5
+3−38=13
−48		  16.5 − 34.5
+6−24=21
−17		 23.5 − 21.5
+13−11=21
+50		  31 − 25
+23−17=16
+33		 36.5 − 24.5
+21−9=31
+32		33.5 − 25.5
+22−14=23
+17
9Deep Sjeng WC2008 64-bit 4CPU303211 − 36
+2−27=18
+25		10 − 37
+3−30=14
−62		15.5 − 32.5
+4−21=23
+5		25.5 − 41.5
+10−26=31
+27		13 − 24
+2−13=22
−19		28.5 − 45.5
+9−26=39
−25		15.5 − 16.5
+7−8=17
0		25 − 31
+17−23=16
−33		  17.5 − 14.5
+10−7=15
+5		33.5 − 20.5
+24−11=19
+56
10Komodo 1.0 64-bit3030            
11Hiarcs 12.1 4CPU30117 − 25
+0−18=14
+44		13 − 36
+4−27=18
+4		12.5 − 37.5
+4−29=17
−33		31.5 − 72.5
+5−46=53
+4		 15 − 17
+7−9=16
+44		40.5 − 43.5
+20−23=41
+20		24.5 − 36.5
+9−21=31
−32		14.5 − 17.5
+7−10=15
−5		  19 − 13
+12−6=14
+59
12Toga II 1.4.1SE 4CPU301010.5 − 39.5
+4−33=13
+10		 18 − 32
+5−19=26
+51		14.5 − 35.5
+5−26=19
−15		13 − 27
+5−19=16
−24		20 − 33
+9−22=22
−13		 25.5 − 33.5
+14−22=23
−17		20.5 − 33.5
+11−24=19
−56		 13 − 19
+6−12=14
−59		 
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
Nau
3
Sto
4
Dee
5
Dee
6
Zap
7
Spa
8
Thi
9
Dee
10
Kom
11
Hia
12
Tog
1Rybka 3 64-bit 4CPU3233 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Naum 4.1 64-bit 4CPU31710.0 90.098.3100.0100.0100.0100.0100.0100.0100.0100.0
3Stockfish 1.6.3 64-bit 4CPU31460.010.0 81.399.2100.0100.0100.0100.0100.0100.0100.0
4Deep Shredder 12 64-bit OA On 4CPU31320.01.718.7 96.8100.0100.0100.0100.0100.0100.0100.0
5Deep Fritz 11 4CPU30980.00.00.83.2 93.399.8100.0100.0100.0100.0100.0
6Zappa Mexico II 64-bit 4CPU30740.00.00.00.06.7 98.8100.0100.0100.0100.0100.0
7Spark 0.3 64-bit 4CPU30420.00.00.00.00.21.2 62.775.275.698.698.7
8Thinker 5.4C Inert 64-bit 4CPU30370.00.00.00.00.00.037.3 67.068.998.899.4
9Deep Sjeng WC2008 64-bit 4CPU30320.00.00.00.00.00.024.833.0 55.597.098.5
10Komodo 1.0 64-bit30300.00.00.00.00.00.024.431.144.5 91.394.1
11Hiarcs 12.1 4CPU30110.00.00.00.00.00.01.41.23.08.7 54.3
12Toga II 1.4.1SE 4CPU30100.00.00.00.00.00.01.30.61.55.945.7 
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

238'941 games (45.93 MB)

All games with comments

238'941 games (141.74 MB)
(Please don't use aggressive download managers)

Various statistics

Created in 2005-2008 by CCRL team
Last games added on March 12, 2010