CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Free 4-CPU engines

Comparing 300 engines!
80 best versions of selected engines played 10813 games with each other

CCRL 40/40 Rating List — Free 4-CPU engines (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), about 15 minutes on a modern Intel CPU.
Computed on August 17, 2019 with Bayeselo based on 1'075'629 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent		DrawsGamesLOS
Elo+−
 SugaR NN 1.1 64-bit 4CPU3497+47−4576.2%−176.541.5%164 
90.2%
1SugaR 1.6.1 64-bit 4CPU3462+25−2569.0%−118.757.4%479
50.7%
 Stockfish 10 64-bit 4CPU3461+18−1873.0%−154.550.7%1050
68.2%
 Stockfish 270918 64-bit 4CPU3453+28−2777.9%−188.743.3%457
57.0%
 ShashChess 8.0 64-bit 4CPU3450+25−2568.8%−115.959.5%476
82.7%
 SugaR XPrO 1.5.3 64-bit 4CPU3433+24−2471.8%−144.151.3%544
54.4%
 Stockfish 9 64-bit 4CPU3431+15−1572.3%−152.850.5%1423
95.5%
 SugaR XPrO 1.4 64-bit 4CPU3411+20−2072.3%−150.551.8%840
55.5%
 asmFish 051117 64-bit 4CPU3409+20−1969.8%−130.555.7%819
75.2%
 SugaR XPrO 1.2 64-bit 4CPU3399+21−2070.4%−136.152.5%754
64.1%
 ShashChess Pro 1.0 64-bit 4CPU3392+33−3365.6%−94.361.7%256
76.6%
 Stockfish 8 64-bit 4CPU3378+14−1365.1%−96.462.1%1647
64.6%
 SugaR XPrO 1.3 64-bit 4CPU3373+23−2266.0%−102.957.4%598
94.8%
2Komodo 10 64-bit 4CPU3346+23−2276.6%−172.544.0%700
70.1%
 Ethereal 11.53 64-bit 4CPU3327+65−6644.4%+32.662.9%62
51.0%
 Stockfish 7 64-bit 4CPU3326+15−1567.0%−105.957.3%1304
68.8%
3Fire 7.1 64-bit 4CPU3320+14−1455.1%−31.959.8%1449
72.4%
4Xiphos 0.5 64-bit 4CPU3313+22−2245.2%+31.366.2%544
61.4%
 Komodo 9 64-bit 4CPU3308+20−2070.4%−124.052.7%804
73.7%
5Ethereal 11.00 64-bit 4CPU3299+19−1947.8%+12.763.8%754
55.2%
 Ethereal 11.25 64-bit 4CPU3297+22−2245.0%+31.666.4%559
65.1%
 Stockfish 6 64-bit 4CPU3291+14−1465.3%−94.257.3%1542
62.2%
 Fire 6.1 64-bit 4CPU3287+18−1848.5%+8.158.4%940
57.9%
 Komodo 8 64-bit 4CPU3285+16−1669.8%−126.749.0%1298
66.3%
6Laser 1.7 64-bit 4CPU3279+22−2244.7%+33.562.3%552
58.1%
7Fizbo 2 64-bit 4CPU3276+14−1345.6%+26.455.8%1653
54.6%
 Ethereal 10.55 64-bit 4CPU3274+24−2549.8%−1.757.4%488
64.6%
 Stockfish 5 64-bit 4CPU3269+15−1567.9%−111.253.7%1324
55.3%
8Andscacs 0.95 64-bit 4CPU3267+22−2240.8%+56.258.5%612
54.6%
 Fire 5 64-bit 4CPU3265+18−1846.9%+17.962.5%867
53.1%
 Andscacs 0.94 64-bit 4CPU3264+18−1848.1%+11.255.0%883
62.1%
9Booot 6.3.1 64-bit 4CPU3260+16−1642.9%+44.656.8%1121
67.0%
 Fizbo 1.9 64-bit 4CPU3255+17−1745.7%+25.855.5%1004
54.9%
 Schooner 2.1 64-bit 4CPU3251+59−6039.4%+65.561.3%80
50.2%
 Xiphos 0.4 64-bit 4CPU3250+19−1943.8%+39.661.1%830
56.6%
10RofChade 2.1 64-bit 4CPU3248+26−2643.4%+42.859.5%410
68.0%
 Andscacs 0.921 64-bit 4CPU3240+16−1650.7%−6.847.5%1225
52.2%
 Andscacs 0.93 64-bit 4CPU3239+18−1842.9%+45.354.8%938
63.7%
 Stockfish DD 64-bit 4CPU3234+17−1763.5%−80.755.5%992
65.0%
 Andscacs 0.91 64-bit 4CPU3229+22−2242.5%+47.459.2%596
52.7%
 Komodo 7a 64-bit 4CPU3228+18−1860.7%−65.359.0%897
64.5%
 Andscacs 0.89 64-bit 4CPU3222+21−2145.9%+28.855.0%662
55.6%
 Komodo TCEC 64-bit 4CPU3220+18−1862.4%−77.955.0%885
58.2%
 Booot 6.2 64-bit 4CPU3218+14−1542.2%+50.759.2%1427
52.9%
 Laser 1.6 64-bit 4CPU3217+17−1742.4%+50.956.1%1034
68.6%
 Komodo 6 64-bit 4CPU3211+17−1758.6%−52.856.7%1065
51.3%
 Andscacs 0.88 64-bit 4CPU3210+31−3241.1%+55.055.9%297
56.9%
 Andscacs 0.90 64-bit 4CPU3207+24−2450.3%+2.155.1%515
52.7%
 Stockfish 4 64-bit 4CPU3206+17−1760.9%−64.858.9%1054
58.2%
11Arasan 21.3 64-bit 4CPU3201+33−3348.4%+10.660.5%258
52.8%
 Komodo 5.1 64-bit 4CPU3200+20−2061.8%−72.054.8%715
49.9%
12Schooner 2.0.34 64-bit 4CPU3200+20−2049.3%+3.557.9%734
51.6%
 Andscacs 0.872 64-bit 4CPU3199+24−2451.3%−4.658.8%476
53.6%
 Fire 4 64-bit 4CPU3198+13−1346.5%+22.259.7%1885
77.2%
 Ethereal 10.00 64-bit 4CPU3189+20−2053.4%−23.150.8%788
60.5%
13Houdini 1.5a 64-bit 4CPU3185+18−1863.2%−87.044.5%951
68.6%
14‑15Gull 3 64-bit 4CPU3180+10−941.7%+53.154.5%3651
48.6%
14‑15NirvanaChess 2.4 64-bit 4CPU3180+14−1440.6%+62.753.8%1676
53.8%
 Fizbo 1.8 64-bit 4CPU3179+21−2143.6%+43.149.7%708
51.8%
 Gull 2.8b 64-bit 4CPU3179+19−1949.1%+3.251.8%797
50.5%
 Xiphos 0.3 64-bit 4CPU3178+21−2149.2%+3.754.2%660
61.8%
16Equinox 3.20 64-bit 4CPU3175+11−1141.6%+53.959.3%2504
48.0%
 RofChade 2.0 64-bit 4CPU3175+21−2149.7%+1.657.7%620
56.6%
17ChessBrainVB 3.72 4CPU3172+31−3145.5%+26.950.7%302
59.9%
 Arasan 21.1 64-bit 4CPU3167+27−2751.2%−7.959.5%383
49.0%
 Arasan 21.2 64-bit 4CPU3167+32−3252.6%−14.861.8%272
50.9%
 Booot 6.1 64-bit 4CPU3167+20−2041.6%+51.960.6%708
52.1%
 Stockfish 3 64-bit 4CPU3166+21−2156.0%−35.357.8%663
62.5%
 Equinox 3.30 64-bit 4CPU3162+18−1843.9%+38.358.9%896
59.8%
18Critter 1.6a 64-bit 4CPU3159+8−845.3%+31.954.6%5429
72.5%
19Hannibal 1.7 64-bit 4CPU3154+14−1441.9%+50.854.6%1472
55.6%
20Nemorino 5.00 64-bit 4CPU3152+19−1949.5%+2.053.1%834
51.0%
 NirvanaChess 2.3 64-bit 4CPU3152+18−1841.4%+55.456.8%869
55.7%
 Fire 3.0 64-bit 4CPU3150+17−1749.5%+2.858.2%948
54.1%
21Bouquet 1.8 64-bit 4CPU3149+11−1143.6%+41.356.7%2427
58.9%
 Stockfish 2.2.2 64-bit 4CPU3147+16−1659.2%−56.853.4%1141
53.4%
 Critter 1.2 64-bit 4CPU3146+20−2058.9%−55.552.9%762
53.3%
 Andscacs 0.86 64-bit 4CPU3145+20−2141.5%+54.254.9%703
49.2%
 Critter 1.4 64-bit 4CPU3145+19−1960.7%−65.653.7%843
52.4%
22Pedone 1.8 64-bit 4CPU3144+32−3250.4%−4.259.4%266
51.4%
 Laser 1.5 64-bit 4CPU3143+20−2049.4%+8.054.5%723
51.4%
 Gull 2.3 64-bit 4CPU3142+17−1747.4%+15.259.3%982
50.2%
 Stockfish 2.3.1 64-bit 4CPU3142+19−1955.4%−32.952.5%846
50.0%
23Texel 1.07 64-bit 4CPU3142+14−1449.8%+3.949.3%1604
62.2%
 NirvanaChess 2.2 64-bit 4CPU3139+18−1740.7%+59.657.5%961
51.3%
24Protector 1.9.0 64-bit 4CPU3138+15−1546.3%+26.054.1%1313
55.2%
25Alfil 15.7 64-bit 4CPU3137+17−1742.9%+48.056.3%1006
51.3%
 Pedone 1.9 64-bit 4CPU3136+57−5751.9%−9.568.8%80
49.8%
 RubiChess 1.5 64-bit 4CPU3136+74−7643.8%+35.058.3%48
50.3%
26Vajolet2 2.6.1 64-bit 4CPU3136+21−2150.8%−5.060.3%605
51.9%
 Wasp 3.60 64-bit 4CPU3134+57−5745.1%+23.063.4%82
51.0%
 Andscacs 0.85 64-bit 4CPU3133+25−2543.9%+42.953.1%467
53.8%
 Bouquet 1.5 64-bit 4CPU3132+23−2346.4%+20.163.6%500
50.2%
 Sting SF 4.8.4 64-bit 4CPU3132+29−2953.3%−21.362.4%330
49.1%
 Sting SF 6 64-bit 4CPU3132+28−2850.8%−6.561.0%354
51.3%
 Texel 1.06 64-bit 4CPU3132+20−2046.1%+24.953.6%739
59.3%
 DeepSaros 4.1.6 64-bit 4CPU3128+26−2645.2%+28.257.5%419
50.6%
 Stockfish 2.0.1 64-bit 4CPU3127+24−2456.4%−40.548.6%514
58.2%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+3.651.6%428
49.6%
 Gull 3.1 64-bit 4CPU3124+30−3045.4%+33.145.1%359
48.7%
 Protector 1.8.0 64-bit 4CPU3124+27−2850.4%−1.254.7%386
54.2%
27BlackMamba 2.0 64-bit 4CPU3123+15−1544.2%+37.554.3%1408
58.5%
 Arasan 20.4.1 64-bit 4CPU3119+26−2651.7%−10.150.2%452
53.1%
 Elektro 1.2 64-bit 4CPU3118+23−2346.1%+27.255.5%546
49.3%
 Fizbo 1.7 64-bit 4CPU3118+27−2756.1%−38.152.5%396
51.8%
 Sting SF 5 64-bit 4CPU3118+25−2548.1%+12.154.0%465
61.6%
 IvanHoe 9.46h 64-bit 4CPU3113+14−1453.2%−19.359.5%1542
49.4%
 Stockfish 2.1.1 64-bit 4CPU3113+27−2754.7%−28.848.3%406
54.1%
 Stockfish 1.9.1 64-bit 4CPU3112+23−2362.1%−81.446.2%580
50.2%
 RobboLito 0.21Q 64-bit 4CPU3111+22−2250.9%−5.662.7%569
53.3%
 Hannibal 1.5 64-bit 4CPU3110+19−1953.2%−20.357.1%819
53.9%
28Senpai 2.0 64-bit 4CPU3109+20−2050.9%−7.948.9%750
50.0%
 Sting SF 3 64-bit 4CPU3109+21−2147.7%+11.458.5%644
51.2%
 Bouquet 1.6 64-bit 4CPU3108+21−2150.0%−0.060.7%641
51.4%
 Sting SF 2 64-bit 4CPU3108+27−2748.8%+8.058.1%375
51.7%
 Stockfish 1.8 64-bit 4CPU3107+19−1962.2%−81.749.3%850
52.3%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−27.148.7%378
54.1%
 Andscacs 0.83 64-bit 4CPU3104+29−2946.6%+18.851.2%338
50.0%
 Stockfish 1.7.1 64-bit 4CPU3104+19−1960.7%−70.052.8%860
53.9%
 Xiphos 0.2.2 64-bit 4CPU3102+26−2647.3%+14.353.6%414
53.1%
29Wasp 3.50 64-bit 4CPU3101+20−2050.4%−5.053.6%785
57.6%
 Gull 2.2 64-bit 4CPU3098+25−2544.5%+31.054.8%469
51.9%
 Vajolet2 2.5 64-bit 4CPU3097+24−2451.5%−9.854.0%493
52.3%
 Sting SF 9 64-bit 4CPU3096+34−3450.6%−4.345.5%266
51.0%
30Naum 4.6 64-bit 4CPU3095+14−1448.1%+11.854.3%1544
50.5%
 Nemorino 4.00 64-bit 4CPU3095+22−2250.0%+1.352.9%624
48.9%
 NirvanaChess 2.1c 64-bit 4CPU3095+22−2345.2%+31.647.7%608
51.5%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+48.648.9%562
62.5%
 Arasan 20.3 64-bit 4CPU3088+32−3252.5%−19.847.4%302
50.3%
 Critter 1.01 64-bit 4CPU3088+31−3149.3%+2.158.0%295
49.9%
 Laser 1.4 64-bit 4CPU3088+19−1949.6%+0.445.7%843
54.0%
 Pedone 1.7 64-bit 4CPU3087+19−1948.2%+10.756.4%801
56.5%
 Texel 1.05 64-bit 4CPU3084+17−1747.3%+19.251.4%1016
55.8%
 Andscacs 0.82 64-bit 4CPU3082+29−2950.6%−3.055.2%330
56.2%
 Critter 0.90 64-bit 4CPU3078+31−3147.6%+13.946.5%316
53.0%
 Andscacs 0.81 64-bit 4CPU3077+31−3248.7%+5.549.3%300
49.2%
 Hannibal 1.4b 64-bit 4CPU3077+15−1542.3%+47.651.3%1332
57.1%
 Protector 1.7.0 64-bit 4CPU3075+19−1944.1%+36.750.6%834
50.9%
 Demolito 2019-04-27 64-bit 4CPU3074+59−5950.0%+0.441.9%86
51.1%
 RubiChess 1.4 64-bit 4CPU3073+58−5849.4%+1.647.7%86
51.8%
 Nemorino 3.0 64-bit 4CPU3072+27−2747.9%+12.446.1%427
51.6%
 Protector 1.6.0 64-bit 4CPU3071+21−2243.2%+44.250.2%656
53.6%
31Rodent III 0.238 64-bit 4CPU3069+20−2047.2%+15.350.0%742
63.1%
32Defenchess 1.1f 64-bit 4CPU3065+19−1851.7%−12.145.3%916
51.4%
33RubiChess 1.3 64-bit 4CPU3064+22−2252.8%−17.744.2%642
58.6%
 Wasp 3.0 64-bit 4CPU3061+25−2551.1%−9.055.0%462
55.3%
 Rodent III 0.276 64-bit 4CPU3058+32−3252.9%−14.656.6%272
49.4%
 Texel 1.04 64-bit 4CPU3058+21−2143.1%+43.047.8%722
54.7%
 Alfil 15.8 64-bit 4CPU3056+22−2253.9%−24.147.9%631
50.4%
 NirvanaChess 2.0a 64-bit 4CPU3056+30−3044.7%+35.850.1%337
50.4%
 Protector 1.5.0 64-bit 4CPU3056+18−1842.5%+47.447.4%952
57.3%
 Pedone 1.6 64-bit 4CPU3053+23−2349.5%+2.957.7%508
52.0%
34Amoeba 3.0 64-bit 4CPU3052+26−2654.8%−32.344.8%466
52.0%
35Demolito 2018-10-29 64-bit 4CPU3051+36−3652.0%−15.251.8%226
52.0%
 Ethereal 9.00 64-bit 4CPU3050+23−2346.8%+18.645.1%570
66.5%
 Vajolet2 2.2 64-bit 4CPU3042+26−2747.0%+15.048.7%423
49.7%
 Vajolet2 2.4 64-bit 4CPU3042+19−1947.2%+18.245.7%878
54.4%
 Stockfish 1.6.3 64-bit 4CPU3040+22−2258.2%−54.044.8%631
52.4%
 Arasan 19.2 64-bit 4CPU3039+31−3151.7%−11.355.0%289
50.8%
 Gull R375 64-bit 4CPU3039+22−2243.4%+36.857.4%605
49.6%
 Wasp 2.6 64-bit 4CPU3039+18−1848.9%+7.947.2%968
60.4%
 Critter 0.80 64-bit 4CPU3034+31−3050.9%−8.648.3%321
51.8%
 Hannibal 1.3 64-bit 4CPU3033+22−2243.0%+43.048.6%642
51.9%
 Pedone 1.5 64-bit 4CPU3032+31−3149.5%+3.551.6%304
51.3%
 Wasp 2.01 64-bit 4CPU3031+30−3055.3%−31.754.5%321
55.6%
 Vajolet2 2.3 64-bit 4CPU3028+31−3243.7%+36.054.7%287
53.5%
 Arasan 20.0 64-bit 4CPU3026+33−3349.2%+6.957.1%252
50.2%
 Winter 0.6 64-bit 4CPU3026+70−7049.2%+5.737.1%62
51.2%
36Bobcat 8.0 64-bit 4CPU3025+21−2148.3%+11.253.5%636
53.6%
 Senpai 1.0 64-bit 4CPU3024+16−1646.2%+20.553.5%1095
50.2%
 Andscacs 0.80 64-bit 4CPU3023+31−3150.2%−0.846.7%317
50.2%
37Pirarucu 2.9.5 64-bit 4CPU3023+35−3549.3%+3.753.3%229
54.3%
 Pirarucu 2.7.4 64-bit 4CPU3021+22−2155.7%−40.047.0%659
54.4%
 Arasan 19.0.1 64-bit 4CPU3019+34−3354.2%−32.743.1%276
52.0%
38Rybka 2.3.2a 64-bit 4CPU3018+13−1363.1%−88.443.9%1906
56.1%
39Spike 1.4 Leiden 4CPU3016+11−1145.2%+29.747.7%2862
62.5%
40‑41Crafty 25.2 64-bit 4CPU3013+16−1648.5%+9.442.5%1279
49.8%
40‑41chess22k 1.10 64-bit 4CPU3013+22−2246.7%+16.743.7%680
53.0%
 Nemorino 2.00 64-bit 4CPU3012+30−3047.0%+16.259.6%302
53.2%
 Laser 1.3 64-bit 4CPU3010+30−3047.2%+15.755.8%321
49.7%
 Texel 1.03 64-bit 4CPU3010+31−3150.3%−1.047.0%313
52.0%
42Cheng 4.39 64-bit 4CPU3009+15−1550.0%+0.549.1%1288
68.3%
 Pedone 1.4.1 64-bit 4CPU3001+31−3148.5%+8.155.7%305
53.9%
 Vajolet2 2.1 64-bit 4CPU2999+25−2550.9%−3.748.5%462
54.8%
 Rodent III 0.210 64-bit 4CPU2997+28−2845.1%+32.742.5%402
57.1%
 Fizbo 1.5 64-bit 4CPU2993+27−2752.6%−16.148.5%410
68.3%
43Scorpio 2.8 64-bit 4CPU2984+25−2549.9%−1.047.2%472
53.0%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+48.742.9%912
55.1%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+22.942.4%531
51.3%
 Bobcat 7.6 64-bit 4CPU2980+32−3250.2%−0.941.7%300
59.7%
 Rybka 2.2 64-bit 4CPU2975+20−2063.5%−91.641.4%843
53.5%
 Arasan 18.3 64-bit 4CPU2973+30−3046.6%+21.046.8%327
54.5%
 Arasan 18.2 64-bit 4CPU2971+28−2751.9%−14.750.3%388
50.6%
44EXchess 7.97b 64-bit 4CPU2971+18−1847.4%+18.445.9%1017
52.1%
 Stockfish 1.5.1 64-bit 4CPU2970+25−2453.7%−23.147.7%495
52.1%
45Spark 1.0 64-bit 4CPU2969+13−1345.0%+32.346.6%1787
62.3%
 Protector 1.3.6 64-bit 4CPU2964+33−3345.7%+23.744.7%291
51.5%
 Demolito 2017-08-26 64-bit 4CPU2963+21−2140.2%+63.340.8%748
60.8%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+29.248.6%356
51.4%
46Toga II 4.0 64-bit 4CPU2957+19−1941.6%+55.340.3%968
53.2%
 Fizbo 1.31 64-bit 4CPU2956+29−3051.1%−7.041.9%358
50.5%
47Winter 0.5 64-bit 4CPU2955+25−2551.1%−8.439.4%500
60.9%
 Crafty 25.0 64-bit 4CPU2950+25−2548.1%+12.647.9%468
53.5%
 Stockfish 1.4 64-bit 4CPU2949+17−1754.2%−29.242.2%1131
58.4%
 Scorpio 2.7.9 64-bit 4CPU2945+22−2246.7%+21.340.5%659
54.8%
48Tucano 7.07 64-bit 4CPU2943+36−3653.8%−24.545.0%240
50.9%
49Gaviota 1.0 64-bit 4CPU2942+16−1647.3%+16.545.4%1256
53.4%
50Marvin 3.3.2 64-bit 4CPU2941+36−3745.9%+22.741.8%232
49.7%
 Topple 0.6.0 64-bit 4CPU2941+121−10975.0%−168.728.6%28
50.4%
51The Baron 3.44 64-bit 4CPU2940+27−2748.0%+13.544.8%422
51.7%
 EXchess 7.51b 64-bit 4CPU2939+33−3350.7%−2.245.7%276
57.9%
 Arasan 17.5 64-bit 4CPU2935+27−2748.4%+10.045.1%406
54.2%
 Bobcat 7.1 64-bit 4CPU2933+33−3348.0%+12.147.1%278
50.4%
 EXchess 7.71b 64-bit 4CPU2933+28−2853.3%−23.443.2%403
49.1%
 Spark 0.4 64-bit 4CPU2933+21−2143.0%+48.445.2%703
51.4%
 Fizbo 1.4 64-bit 4CPU2932+28−2845.9%+25.444.7%394
53.2%
 Ethereal 8.62 64-bit 4CPU2931+22−2244.2%+35.449.7%600
56.3%
 Spark 0.3 64-bit 4CPU2928+23−2346.5%+20.549.7%572
53.2%
 Arasan 18.0 64-bit 4CPU2927+29−2947.2%+15.241.5%378
50.3%
52Thinker 5.4d Inert 64-bit 4CPU2926+22−2346.0%+24.549.7%587
57.6%
 Thinker 5.4c Inert 64-bit 4CPU2924+15−1548.1%+12.639.4%1502
57.4%
 Marvin 3.2.0 64-bit 4CPU2921+21−2153.7%−26.443.0%698
55.7%
 Toga II 3.0 4CPU2919+22−2245.6%+27.049.0%592
54.4%
53Gogobello 2.0 64-bit 4CPU2917+26−2552.9%−21.139.2%502
56.7%
54DisasterArea 1.65 64-bit 4CPU2914+21−2144.2%+35.946.1%709
56.2%
 Crafty 23.8 64-bit 4CPU2911+34−3447.6%+16.247.2%267
60.4%
 Thinker 5.4a Inert 64-bit 4CPU2905+23−2347.3%+20.245.4%560
51.7%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.441.6%2041
56.3%
 The Baron 3.41 64-bit 4CPU2903+20−2039.1%+70.443.8%800
66.8%
55Bright 0.4a 4CPU2897+15−1547.4%+17.041.1%1495
49.4%
 Cheng4 0.36c 64-bit 4CPU2897+30−3048.8%+6.446.6%326
52.1%
56‑57Glaurung 2.2 64-bit 4CPU2896+16−1647.0%+19.540.7%1259
49.6%
56‑57Tornado 6.0 64-bit 4CPU2896+26−2645.1%+30.443.5%453
54.8%
 Tornado 7.0 64-bit 4CPU2894+25−2545.3%+31.039.2%502
50.4%
 Tornado 8.0 64-bit 4CPU2894+19−1945.2%+30.639.0%881
58.4%
 Bright 0.5c 4CPU2891+22−2347.2%+19.042.9%616
57.5%
58Octochess r5506 64-bit 4CPU2888+21−2144.5%+35.446.7%715
55.0%
59MinkoChess 1.3 64-bit 4CPU2886+21−2146.0%+24.443.7%725
50.2%
 Tornado 4.88 64-bit 4CPU2886+26−2646.0%+24.241.5%479
51.7%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
49.9%
 Topple 0.7.0 64-bit 4CPU2885+82−8249.0%+6.226.0%50
51.2%
 Asymptote 0.6 64-bit 4CPU2884+75−7548.0%+7.452.0%50
51.4%
 Pedone 1.3 64-bit 4CPU2882+29−2946.6%+20.151.0%355
53.8%
 Fruit Reloaded 3.2.1 64-bit 4CPU2880+18−1838.8%+74.839.1%1024
54.3%
 Crafty 24.1 64-bit 4CPU2878+31−3243.5%+41.639.1%322
56.7%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.4%+16.444.0%445
62.8%
 Glaurung 2.1 64-bit 4CPU2869+18−1942.8%+51.341.3%946
55.5%
 Bobcat 6.4b 64-bit 4CPU2867+27−2748.3%+11.546.5%415
50.9%
 The Baron 3.29 64-bit 4CPU2867+25−2546.3%+22.343.1%489
51.2%
 EXchess 7.18b 64-bit 4CPU2866+35−3546.7%+20.137.9%256
51.7%
 Crafty 23.4 64-bit 4CPU2865+37−3747.2%+16.835.2%236
59.3%
 Gaviota 0.86 64-bit 4CPU2860+24−2453.4%−26.932.6%617
52.6%
 Arasan 16.3 64-bit 4CPU2858+34−3449.1%+4.740.2%276
52.1%
 Scorpio 2.7.5 64-bit 4CPU2857+36−3644.1%+34.050.9%230
51.6%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+44.741.3%310
53.3%
60Monolith 1.0 64-bit 4CPU2854+22−2248.6%+8.543.4%687
54.2%
 Igel 1.7.0 64-bit 4CPU2850+77−7942.0%+48.240.0%50
55.3%
 Counter 3.2 64-bit 4CPU2843+46−4647.7%+11.436.6%153
53.2%
61‑62Cheese 2.0 64-bit 4CPU2841+29−2946.2%+23.838.1%394
48.9%
61‑62Shield 2.1 64-bit 4CPU2841+24−2448.5%+10.536.7%586
57.2%
63Loop 13.6 (Loop 2007) 64-bit 4CPU2839+19−1948.3%+11.142.7%878
51.4%
64BugChess2 1.9 64-bit 4CPU2838+21−2143.4%+44.438.2%738
51.0%
 Crafty 23.3 64-bit 4CPU2837+31−3241.5%+55.738.2%325
54.3%
 Topple 0.5.0 64-bit 4CPU2834+60−6236.7%+82.442.2%83
53.9%
 Bright 0.3a 4CPU2830+18−1842.4%+51.541.8%988
54.4%
 Glaurung 2.0.1 64-bit 4CPU2829+17−1743.8%+38.643.5%1100
63.8%
 Octochess r5190 64-bit 4CPU2823+24−2445.9%+24.444.5%555
58.7%
 Pedone 1.1 64-bit 4CPU2819+31−3153.7%−31.739.5%347
56.1%
65Jonny 4.00 4CPU2816+25−2543.6%+42.335.0%540
72.4%
 Bright 0.2c 4CPU2806+21−2143.9%+39.943.2%724
58.5%
 Pedone 1.2 64-bit 4CPU2801+39−3949.5%+1.941.0%210
53.8%
 Laser 1.0 64-bit 4CPU2798+39−4037.2%+84.339.6%207
59.4%
 Crafty 23.1 64-bit 4CPU2792+36−3743.8%+42.736.9%241
54.0%
 Arminius 2018-12-23 64-bit 4CPU2788+49−5040.9%+65.234.1%138
78.8%
 Glaurung 1.2.1 64-bit 4CPU2766+19−1940.2%+63.638.1%967
67.8%
 Crafty 23.0 64-bit 4CPU2759+18−1839.0%+77.934.1%1042
77.8%
 Alfil 13.1 64-bit 4CPU2746+28−2841.8%+53.334.1%440
54.4%
66Fridolin 3.10 64-bit 4CPU2743+33−3349.5%+0.331.5%308
52.3%
 Bagatur 1.7a 64-bit 4CPU2740+109−11341.1%+61.025.0%28
55.4%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
65.0%
67Nebula 2.0 64-bit 4CPU2725+20−2045.1%+36.034.1%866
63.9%
 Scorpio 2.1 64-bit 4CPU2719+27−2734.4%+109.331.6%490
81.6%
68Igel 1.4.1 64-bit 4CPU2701+28−2850.7%−7.126.3%448
60.1%
 Minic 0.57 64-bit 4CPU2686+104−11231.0%+123.634.5%29
50.4%
69Hamsters 0.7.1 4CPU2685+32−3252.4%−13.836.2%318
55.3%
70RedQueen 1.1.98 64-bit 4CPU2683+27−2739.4%+79.828.5%494
65.5%
71ECE X3 64-bit 4CPU2675+23−2341.5%+68.823.4%709
55.3%
72Pharaon 3.5.1 4CPU2673+26−2643.6%+41.729.7%518
61.5%
73Jellyfish 1.1 64-bit 4CPU2667+29−2953.2%−23.432.4%411
61.5%
 RedQueen 1.1.97 64-bit 4CPU2662+22−2245.7%+26.833.3%726
72.0%
74Ghost 3.1 64-bit 4CPU2651+30−2953.9%−25.728.5%393
52.8%
75Arminius 2015-08-06 64-bit 4CPU2650+33−3344.2%+37.836.1%302
53.2%
 Gaviota 0.83 64-bit 4CPU2648+25−2547.3%+20.527.9%566
99.6%
 Fridolin 2.00 64-bit 4CPU2588+34−3441.9%+57.431.3%297
93.4%
76Delphil 3.2 64-bit 4CPU2554+31−3138.2%+85.130.5%374
51.4%
77Jazz 840 64-bit 4CPU2553+20−1957.8%−64.125.3%1000
91.5%
78Nemeton 1.8 4CPU2529+27−2749.9%+1.927.2%496
86.6%
79Jumbo 0.6.66 64-bit 4CPU2508+28−2850.0%−0.933.0%433
88.1%
80Myrddin 0.87 64-bit 4CPU2482+35−3538.9%+80.928.4%296
86.0%
 Invictus r228 64-bit 4CPU2339+242−29528.6%+166.90.0%7
 

Results matrix

Free 4-CPU engines (best versions only), top 12
#NameElo1
SugaR
2
Komod
3
Fire
4
Xipho
5
Ether
6
Laser
7
Fizbo
8
Andsc
9
Booot
10
RofCh
11
Arasa
12
Schoo
1SugaR 1.6.1 64-bit 4CPU3462  24 − 8
+17−1=14
+19		22 − 10
+12−0=20
−44		 26 − 6
+20−0=12
+27		23 − 9
+14−0=18
−56		24.5 − 7.5
+17−0=15
−31		27.5 − 4.5
+23−0=9
+65		   
2Komodo 10 64-bit 4CPU3346            
3Fire 7.1 64-bit 4CPU33208 − 24
+1−17=14
−19		  16.5 − 21.5
+2−7=29
−40		20 − 12
+9−1=22
+46		19 − 13
+7−1=24
+8		25.5 − 20.5
+11−6=29
−14		19.5 − 12.5
+9−2=21
+6		24.5 − 13.5
+12−1=25
+18		13 − 9
+5−1=16
−20		 4.5 − 1.5
+3−0=3
+32
4Xiphos 0.5 64-bit 4CPU331310 − 22
+0−12=20
+44		 21.5 − 16.5
+7−2=29
+40		  18 − 14
+5−1=26
−4		21 − 17
+7−3=28
−10		23 − 15
+10−2=26
+9		23 − 15
+9−1=28
0		11 − 9
+3−1=16
−40		 3.5 − 2.5
+1−0=5
−70
5Ethereal 11.00 64-bit 4CPU3299  12 − 20
+1−9=22
−46		   19.5 − 12.5
+8−1=23
+33		 16 − 16
+1−1=30
−39		  21 − 11
+11−1=20
−15
6Laser 1.7 64-bit 4CPU32796 − 26
+0−20=12
−27		 13 − 19
+1−7=24
−8		14 − 18
+1−5=26
+4		  16 − 14
+6−4=20
+14		16.5 − 15.5
+5−4=23
−4		19 − 13
+7−1=24
+28		13.5 − 8.5
+5−0=17
+23		 7 − 9
+2−4=10
−115
7Fizbo 2 64-bit 4CPU32769 − 23
+0−14=18
+56		 20.5 − 25.5
+6−11=29
+14		17 − 21
+3−7=28
+10		12.5 − 19.5
+1−8=23
−33		14 − 16
+4−6=20
−14		 21 − 17
+8−4=26
+19		21.5 − 16.5
+11−6=21
+23		9 − 13
+2−6=14
−77		 22.5 − 16.5
+11−5=23
−33
8Andscacs 0.95 64-bit 4CPU32677.5 − 24.5
+0−17=15
+31		 12.5 − 19.5
+2−9=21
−6		15 − 23
+2−10=26
−9		 15.5 − 16.5
+4−5=23
+4		17 − 21
+4−8=26
−19		 16.5 − 15.5
+6−5=21
+4		14 − 8
+8−2=12
+62		14 − 6
+9−1=10
+54		10.5 − 5.5
+6−1=9
+25
9Booot 6.3.1 64-bit 4CPU32604.5 − 27.5
+0−23=9
−65		 13.5 − 24.5
+1−12=25
−18		15 − 23
+1−9=28
0		16 − 16
+1−1=30
+39		13 − 19
+1−7=24
−28		16.5 − 21.5
+6−11=21
−23		15.5 − 16.5
+5−6=21
−4		 12.5 − 9.5
+4−1=17
+22		 24.5 − 13.5
+14−3=21
+24
10RofChade 2.1 64-bit 4CPU3248  9 − 13
+1−5=16
+20		9 − 11
+1−3=16
+40		 8.5 − 13.5
+0−5=17
−23		13 − 9
+6−2=14
+77		8 − 14
+2−8=12
−62		9.5 − 12.5
+1−4=17
−22		 22.5 − 19.5
+9−6=27
−27		3 − 1
+2−0=2
+101
11Arasan 21.3 64-bit 4CPU3201       6 − 14
+1−9=10
−54		 19.5 − 22.5
+6−9=27
+27		 3 − 1
+2−0=2
+148
12Schooner 2.0.34 64-bit 4CPU3200  1.5 − 4.5
+0−3=3
−32		2.5 − 3.5
+0−1=5
+70		11 − 21
+1−11=20
+15		9 − 7
+4−2=10
+115		16.5 − 22.5
+5−11=23
+33		5.5 − 10.5
+1−6=9
−25		13.5 − 24.5
+3−14=21
−24		1 − 3
+0−2=2
−101		1 − 3
+0−2=2
−148		 
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

Free 4-CPU engines (best versions only), top 12
#NameElo1
Sug
2
Kom
3
Fir
4
Xip
5
Eth
6
Las
7
Fiz
8
And
9
Boo
10
Rof
11
Ara
12
Sch
1SugaR 1.6.1 64-bit 4CPU3462 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Komodo 10 64-bit 4CPU33460.0 96.897.799.9100.0100.0100.0100.0100.0100.0100.0
3Fire 7.1 64-bit 4CPU33200.03.2 72.496.699.9100.0100.0100.0100.0100.0100.0
4Xiphos 0.5 64-bit 4CPU33130.02.327.6 82.098.599.799.9100.0100.0100.0100.0
5Ethereal 11.00 64-bit 4CPU32990.00.13.418.0 90.497.398.499.999.8100.0100.0
6Laser 1.7 64-bit 4CPU32790.00.00.11.59.6 58.178.491.096.2100.0100.0
7Fizbo 2 64-bit 4CPU32760.00.00.00.32.741.9 76.593.496.6100.0100.0
8Andscacs 0.95 64-bit 4CPU32670.00.00.00.11.621.623.5 68.686.599.9100.0
9Booot 6.3.1 64-bit 4CPU32600.00.00.00.00.19.06.631.4 78.399.9100.0
10RofChade 2.1 64-bit 4CPU32480.00.00.00.00.23.83.413.521.7 98.999.7
11Arasan 21.3 64-bit 4CPU32010.00.00.00.00.00.00.00.10.11.1 52.8
12Schooner 2.0.34 64-bit 4CPU32000.00.00.00.00.00.00.00.00.00.347.2 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
Testing profile
  (Step: , Numbers: )

Results table
Performance table
Score table
LOS 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

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:
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  Recalibrate current list to reference using all common engines

Created in 2005-2013 by CCRL team
Last games added on August 17, 2019