CCRL 40/40
Downloads and Statistics
May 25, 2019
Testing summary:
Total: 1'048'225 games
played by 2'458 programs
143565 CPU days (X2 4600+)

White wins: 364'320 (34.8%)
Black wins: 271'251 (25.9%)
Draws: 412'654 (39.4%)
White score: 54.4%

Free 4-CPU engines

Comparing 287 engines!
79 best versions of selected engines played 11614 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 May 25, 2019 with Bayeselo based on 1'048'225 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+−
1Stockfish 10 64-bit 4CPU3463+19−1974.1%−163.148.9%930 
55.3%
 SugaR 1.6.1 64-bit 4CPU3461+26−2669.6%−122.556.4%447
64.9%
 Stockfish 270918 64-bit 4CPU3454+28−2777.9%−189.543.3%457
71.5%
 ShashChess 8.0 64-bit 4CPU3442+27−2668.1%−111.260.8%416
68.0%
 SugaR XPrO 1.5.3 64-bit 4CPU3434+24−2471.8%−144.451.3%544
55.6%
 Stockfish 9 64-bit 4CPU3432+15−1572.3%−153.750.5%1423
95.5%
 SugaR XPrO 1.4 64-bit 4CPU3411+20−2072.3%−150.451.8%840
55.8%
 asmFish 051117 64-bit 4CPU3409+20−1969.8%−130.455.7%819
75.2%
 SugaR XPrO 1.2 64-bit 4CPU3399+21−2070.4%−135.952.5%754
62.8%
 ShashChess Pro 1.0 64-bit 4CPU3392+33−3365.6%−93.661.7%256
77.7%
 Stockfish 8 64-bit 4CPU3378+14−1365.1%−96.462.1%1647
64.6%
 SugaR XPrO 1.3 64-bit 4CPU3373+23−2266.0%−102.857.4%598
94.8%
2Komodo 10 64-bit 4CPU3346+23−2276.6%−172.644.0%700
93.7%
 Stockfish 7 64-bit 4CPU3326+15−1567.0%−106.057.3%1304
65.7%
3Fire 7.1 64-bit 4CPU3321+15−1556.7%−41.959.2%1269
84.4%
 Komodo 9 64-bit 4CPU3308+20−2070.4%−124.152.7%804
56.8%
 Xiphos 0.5 64-bit 4CPU3304+37−3837.9%+74.666.5%194
59.8%
4Ethereal 11.00 64-bit 4CPU3298+20−2048.7%+8.363.9%714
55.0%
 Ethereal 11.25 64-bit 4CPU3296+26−2643.3%+42.465.1%410
62.9%
 Stockfish 6 64-bit 4CPU3291+14−1465.3%−94.257.3%1542
61.8%
 Fire 6.1 64-bit 4CPU3287+18−1848.5%+8.358.4%940
58.2%
 Komodo 8 64-bit 4CPU3285+16−1669.8%−126.749.0%1298
55.8%
5Laser 1.7 64-bit 4CPU3282+30−3048.8%+9.361.3%302
60.4%
6Fizbo 2 64-bit 4CPU3278+14−1446.0%+23.355.1%1493
57.6%
 Ethereal 10.55 64-bit 4CPU3275+25−2449.8%−2.057.4%488
59.8%
7Andscacs 0.95 64-bit 4CPU3270+29−2939.9%+62.859.5%336
53.1%
 Stockfish 5 64-bit 4CPU3269+15−1567.9%−111.253.7%1324
61.7%
 Fire 5 64-bit 4CPU3265+18−1846.9%+17.962.5%867
52.8%
 Andscacs 0.94 64-bit 4CPU3264+19−1848.3%+9.955.1%875
55.1%
8Booot 6.3.1 64-bit 4CPU3262+18−1843.5%+40.855.8%965
72.5%
 Fizbo 1.9 64-bit 4CPU3255+17−1745.7%+25.855.5%1004
59.9%
9Xiphos 0.4 64-bit 4CPU3251+19−1943.8%+39.461.1%830
81.4%
 Andscacs 0.921 64-bit 4CPU3240+16−1650.7%−6.847.5%1225
51.8%
 Andscacs 0.93 64-bit 4CPU3239+18−1842.9%+45.554.8%938
64.2%
 Stockfish DD 64-bit 4CPU3234+17−1763.5%−80.755.5%992
65.1%
 Andscacs 0.91 64-bit 4CPU3229+22−2242.5%+47.359.2%596
52.6%
 Komodo 7a 64-bit 4CPU3228+18−1860.7%−65.359.0%897
64.6%
 Andscacs 0.89 64-bit 4CPU3222+21−2145.9%+28.955.0%662
55.5%
 Komodo TCEC 64-bit 4CPU3220+18−1862.4%−77.955.0%885
58.0%
 Booot 6.2 64-bit 4CPU3218+15−1442.2%+50.859.2%1427
51.2%
 Laser 1.6 64-bit 4CPU3217+17−1742.4%+51.556.1%1034
70.1%
 Komodo 6 64-bit 4CPU3211+17−1758.6%−52.856.7%1065
51.2%
 Andscacs 0.88 64-bit 4CPU3210+31−3241.1%+55.055.9%297
57.0%
 Andscacs 0.90 64-bit 4CPU3207+24−2450.3%+2.355.1%515
52.8%
 Stockfish 4 64-bit 4CPU3206+17−1760.9%−64.858.9%1054
66.4%
 Komodo 5.1 64-bit 4CPU3200+20−2061.8%−72.054.8%715
49.1%
10Schooner 2.0.34 64-bit 4CPU3200+20−2048.9%+5.858.2%698
52.5%
 Andscacs 0.872 64-bit 4CPU3199+24−2451.3%−4.658.8%476
53.6%
 Fire 4 64-bit 4CPU3198+13−1346.5%+22.159.7%1885
76.7%
 Ethereal 10.00 64-bit 4CPU3189+20−2053.4%−22.950.8%788
61.4%
11Houdini 1.5a 64-bit 4CPU3185+19−1963.5%−89.043.9%931
67.8%
12Gull 3 64-bit 4CPU3180+9−941.7%+53.254.5%3651
51.8%
13‑14ChessBrainVB 3.72 4CPU3179+38−3844.3%+35.150.0%202
50.0%
 Fizbo 1.8 64-bit 4CPU3179+21−2143.6%+43.149.7%708
50.4%
13‑14NirvanaChess 2.4 64-bit 4CPU3179+14−1439.6%+69.253.4%1572
51.2%
 Xiphos 0.3 64-bit 4CPU3179+21−2149.2%+3.054.2%660
50.4%
 Gull 2.8b 64-bit 4CPU3178+19−1949.1%+4.251.8%797
55.1%
15RofChade 2.0 64-bit 4CPU3176+21−2149.7%+1.757.7%620
55.9%
16Equinox 3.20 64-bit 4CPU3175+11−1141.6%+53.859.3%2504
63.5%
17Arasan 21.2 64-bit 4CPU3168+33−3353.7%−21.462.1%256
51.7%
 Arasan 21.1 64-bit 4CPU3167+27−2751.2%−7.359.5%383
51.2%
 Booot 6.1 64-bit 4CPU3167+20−2041.6%+51.960.6%708
51.9%
 Stockfish 3 64-bit 4CPU3166+21−2156.0%−35.257.8%663
62.8%
 Equinox 3.30 64-bit 4CPU3162+18−1843.9%+38.358.9%896
59.6%
18Critter 1.6a 64-bit 4CPU3159+8−845.3%+31.954.6%5429
64.2%
19Nemorino 5.00 64-bit 4CPU3155+20−2049.9%−1.152.2%762
52.6%
20Hannibal 1.7 64-bit 4CPU3154+14−1441.9%+50.954.6%1472
57.4%
 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
49.6%
 Pedone 1.8 64-bit 4CPU3150+39−3955.5%−33.463.4%172
52.4%
21Bouquet 1.8 64-bit 4CPU3149+11−1143.6%+41.356.7%2427
58.5%
 Stockfish 2.2.2 64-bit 4CPU3147+16−1659.2%−56.753.4%1141
53.3%
 Critter 1.2 64-bit 4CPU3146+20−2058.9%−55.452.9%762
52.8%
 Critter 1.4 64-bit 4CPU3145+19−1960.7%−65.553.7%843
51.2%
 Andscacs 0.86 64-bit 4CPU3144+20−2141.5%+55.254.9%703
53.9%
 Laser 1.5 64-bit 4CPU3143+20−2049.4%+8.154.5%723
51.6%
 Gull 2.3 64-bit 4CPU3142+17−1747.4%+15.259.3%982
50.1%
 Stockfish 2.3.1 64-bit 4CPU3142+19−1955.4%−32.952.5%846
50.0%
22Texel 1.07 64-bit 4CPU3142+14−1449.9%+3.349.0%1568
62.4%
 NirvanaChess 2.2 64-bit 4CPU3139+17−1840.7%+59.657.5%961
51.4%
23Protector 1.9.0 64-bit 4CPU3138+15−1546.3%+26.054.1%1313
55.1%
24Alfil 15.7 64-bit 4CPU3137+17−1742.9%+48.056.3%1006
52.7%
25Vajolet2 2.6.1 64-bit 4CPU3136+21−2150.8%−4.860.3%605
55.6%
 Andscacs 0.85 64-bit 4CPU3133+25−2543.9%+42.953.1%467
53.6%
 Bouquet 1.5 64-bit 4CPU3132+23−2346.4%+20.263.6%500
50.4%
 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
51.2%
 Texel 1.06 64-bit 4CPU3132+20−2046.1%+24.853.6%739
59.2%
 DeepSaros 4.1.6 64-bit 4CPU3128+26−2645.2%+28.257.5%419
50.5%
 Stockfish 2.0.1 64-bit 4CPU3127+24−2456.4%−40.548.6%514
58.1%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+3.751.6%428
49.7%
 Gull 3.1 64-bit 4CPU3124+30−3045.4%+33.145.1%359
48.8%
 Protector 1.8.0 64-bit 4CPU3124+28−2850.4%−1.354.7%386
54.1%
26BlackMamba 2.0 64-bit 4CPU3123+14−1544.2%+37.554.3%1408
58.7%
 Arasan 20.4.1 64-bit 4CPU3119+26−2651.7%−10.250.2%452
53.1%
 Elektro 1.2 64-bit 4CPU3118+23−2346.1%+27.155.5%546
49.3%
 Fizbo 1.7 64-bit 4CPU3118+27−2756.1%−38.352.5%396
51.8%
 Sting SF 5 64-bit 4CPU3117+25−2548.1%+13.154.0%465
61.3%
 IvanHoe 9.46h 64-bit 4CPU3113+14−1453.2%−19.359.5%1542
49.5%
 Stockfish 2.1.1 64-bit 4CPU3113+27−2754.7%−28.848.3%406
54.3%
 RobboLito 0.21Q 64-bit 4CPU3111+22−2250.9%−5.662.7%569
50.0%
 Stockfish 1.9.1 64-bit 4CPU3111+23−2362.1%−80.546.2%580
53.4%
 Hannibal 1.5 64-bit 4CPU3110+19−1953.2%−20.457.1%819
50.2%
 Pedone 1.9 64-bit 4CPU3110+77−7748.9%+7.865.9%44
51.0%
27Senpai 2.0 64-bit 4CPU3109+20−2050.9%−7.848.9%750
50.3%
 Sting SF 3 64-bit 4CPU3109+21−2147.7%+11.558.5%644
51.1%
 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
51.8%
 Stockfish 1.8 64-bit 4CPU3107+19−1962.2%−81.849.3%850
52.5%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−27.348.7%378
54.0%
 Andscacs 0.83 64-bit 4CPU3104+29−2946.6%+18.651.2%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%+14.253.6%414
52.8%
28Wasp 3.50 64-bit 4CPU3101+19−1950.4%−5.053.6%785
57.7%
 Gull 2.2 64-bit 4CPU3098+25−2544.5%+30.954.8%469
52.2%
 Vajolet2 2.5 64-bit 4CPU3097+24−2451.5%−10.054.0%493
52.1%
 Sting SF 9 64-bit 4CPU3096+34−3450.6%−4.345.5%266
51.2%
29Naum 4.6 64-bit 4CPU3095+14−1448.1%+11.754.3%1544
50.6%
 Nemorino 4.00 64-bit 4CPU3095+22−2250.0%+1.252.9%624
48.9%
 NirvanaChess 2.1c 64-bit 4CPU3095+22−2345.2%+31.447.7%608
51.4%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+48.648.9%562
62.7%
 Arasan 20.3 64-bit 4CPU3088+32−3252.5%−20.047.4%302
50.2%
 Critter 1.01 64-bit 4CPU3088+31−3149.3%+2.158.0%295
50.1%
 Laser 1.4 64-bit 4CPU3088+19−1949.6%+0.345.7%843
53.8%
30Pedone 1.7 64-bit 4CPU3087+19−1948.2%+10.856.4%801
56.7%
 Texel 1.05 64-bit 4CPU3084+17−1747.3%+19.151.4%1016
55.8%
 Andscacs 0.82 64-bit 4CPU3082+29−2950.6%−3.155.2%330
56.2%
 Critter 0.90 64-bit 4CPU3078+31−3147.6%+13.746.5%316
53.0%
 Andscacs 0.81 64-bit 4CPU3077+31−3148.7%+5.449.3%300
49.1%
 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
58.1%
 Nemorino 3.0 64-bit 4CPU3071+27−2747.9%+13.346.1%427
51.4%
 Protector 1.6.0 64-bit 4CPU3071+21−2243.2%+44.150.2%656
53.9%
31Rodent III 0.238 64-bit 4CPU3069+20−2047.2%+15.350.0%742
63.0%
32Defenchess (SCTR) 1.1f 64-bit 4CPU3065+19−1851.7%−12.245.3%916
54.9%
33RubiChess 1.3 64-bit 4CPU3063+22−2252.8%−17.944.2%642
54.8%
 Wasp 3.0 64-bit 4CPU3061+25−2551.1%−8.755.0%462
56.8%
 Texel 1.04 64-bit 4CPU3058+21−2143.1%+42.947.8%722
54.9%
 Alfil 15.8 64-bit 4CPU3056+22−2253.9%−24.347.9%631
50.2%
 NirvanaChess 2.0a 64-bit 4CPU3056+30−3044.7%+35.850.1%337
50.3%
 Protector 1.5.0 64-bit 4CPU3056+18−1842.5%+47.347.4%952
57.6%
 Pedone 1.6 64-bit 4CPU3053+23−2349.5%+2.957.7%508
52.9%
 Rodent III 0.276 64-bit 4CPU3051+38−3854.6%−24.159.7%186
52.0%
34Amoeba 3.0 64-bit 4CPU3050+26−2654.2%−28.545.3%450
50.1%
 Ethereal 9.00 64-bit 4CPU3050+23−2346.8%+18.745.1%570
52.7%
35Demolito 2018-10-29 64-bit 4CPU3048+36−3652.0%−14.751.8%226
60.9%
 Vajolet2 2.2 64-bit 4CPU3042+27−2747.0%+14.948.7%423
49.4%
 Vajolet2 2.4 64-bit 4CPU3042+19−1947.2%+18.245.7%878
54.3%
 Stockfish 1.6.3 64-bit 4CPU3040+22−2258.2%−54.144.8%631
52.7%
 Arasan 19.2 64-bit 4CPU3039+31−3151.7%−11.455.0%289
50.4%
 Gull R375 64-bit 4CPU3039+22−2243.4%+36.857.4%605
50.0%
 Wasp 2.6 64-bit 4CPU3039+18−1848.9%+7.747.2%968
60.2%
 Critter 0.80 64-bit 4CPU3034+30−3050.9%−8.748.3%321
51.6%
 Hannibal 1.3 64-bit 4CPU3033+22−2243.0%+43.048.6%642
52.5%
 Pedone 1.5 64-bit 4CPU3032+31−3149.5%+3.351.6%304
51.2%
 Wasp 2.01 64-bit 4CPU3031+30−3055.3%−31.854.5%321
55.5%
 Vajolet2 2.3 64-bit 4CPU3028+31−3243.7%+35.754.7%287
55.1%
 Arasan 20.0 64-bit 4CPU3025+34−3449.0%+8.257.1%240
51.3%
36Bobcat 8.0 64-bit 4CPU3024+21−2148.3%+11.953.5%636
51.1%
 Pirarucu 2.9.5 64-bit 4CPU3024+50−5045.7%+24.453.0%115
50.4%
 Andscacs 0.80 64-bit 4CPU3023+31−3150.2%−0.946.7%317
49.9%
 Senpai 1.0 64-bit 4CPU3023+16−1646.2%+21.453.5%1095
60.7%
37Pirarucu 2.7.4 64-bit 4CPU3020+22−2155.7%−40.547.0%659
51.9%
 Arasan 19.0.1 64-bit 4CPU3019+34−3354.2%−32.843.1%276
51.8%
38Rybka 2.3.2a 64-bit 4CPU3018+13−1363.1%−88.543.9%1906
55.8%
39Spike 1.4 Leiden 4CPU3016+11−1145.2%+29.647.7%2862
63.9%
40‑41Crafty 25.2 64-bit 4CPU3013+16−1648.5%+9.142.5%1279
49.1%
40‑41chess22k 1.10 64-bit 4CPU3013+22−2246.7%+16.743.7%680
53.2%
 Nemorino 2.00 64-bit 4CPU3012+30−3047.0%+15.959.6%302
53.2%
 Laser 1.3 64-bit 4CPU3010+30−3047.2%+15.555.8%321
49.5%
 Texel 1.03 64-bit 4CPU3010+31−3150.3%−1.147.0%313
52.5%
42Cheng 4.39 64-bit 4CPU3009+15−1550.0%+0.249.1%1288
68.0%
 Pedone 1.4.1 64-bit 4CPU3001+30−3148.5%+8.055.7%305
53.8%
 Vajolet2 2.1 64-bit 4CPU2999+25−2550.9%−3.848.5%462
54.9%
 Rodent III 0.210 64-bit 4CPU2997+28−2845.1%+32.542.5%402
56.9%
 Fizbo 1.5 64-bit 4CPU2993+27−2752.6%−16.248.5%410
73.1%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+48.742.9%912
52.2%
43Scorpio 2.8 64-bit 4CPU2982+26−2649.6%+0.746.5%456
52.5%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+22.942.4%531
51.4%
 Bobcat 7.6 64-bit 4CPU2980+32−3250.2%−1.141.7%300
58.3%
 Rybka 2.2 64-bit 4CPU2976+20−2063.9%−94.841.6%831
54.9%
 Arasan 18.3 64-bit 4CPU2973+30−3046.6%+20.946.8%327
54.5%
 Arasan 18.2 64-bit 4CPU2971+28−2851.9%−14.750.3%388
51.2%
44EXchess 7.97b 64-bit 4CPU2970+18−1847.4%+19.145.9%1017
51.1%
 Stockfish 1.5.1 64-bit 4CPU2970+25−2453.7%−23.047.7%495
52.3%
45Spark 1.0 64-bit 4CPU2969+13−1345.0%+32.346.6%1787
69.4%
 Demolito 2017-08-26 64-bit 4CPU2963+21−2140.2%+63.240.8%748
48.5%
 Protector 1.3.6 64-bit 4CPU2963+33−3345.7%+24.744.7%291
60.4%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+29.148.6%356
51.6%
46Toga II 4.0 64-bit 4CPU2957+19−1941.5%+56.040.3%952
51.7%
 Marvin 3.3.2 64-bit 4CPU2956+51−5150.0%−2.340.0%120
50.2%
 Fizbo 1.31 64-bit 4CPU2955+29−2951.1%−6.141.9%358
57.7%
47Winter 0.5 64-bit 4CPU2951+25−2551.1%−8.439.4%500
53.1%
 Crafty 25.0 64-bit 4CPU2950+25−2548.1%+12.647.9%468
53.2%
 Stockfish 1.4 64-bit 4CPU2949+17−1754.2%−29.142.2%1131
59.2%
 Scorpio 2.7.9 64-bit 4CPU2945+22−2246.7%+21.140.5%659
58.9%
48Gaviota 1.0 64-bit 4CPU2942+16−1647.3%+16.345.4%1256
56.1%
 EXchess 7.51b 64-bit 4CPU2939+33−3350.7%−2.345.7%276
57.8%
 Arasan 17.5 64-bit 4CPU2935+27−2748.4%+9.945.1%406
50.4%
49The Baron 3.44 64-bit 4CPU2935+29−3045.6%+27.044.1%356
53.6%
 Bobcat 7.1 64-bit 4CPU2933+33−3348.0%+12.047.1%278
49.6%
 Spark 0.4 64-bit 4CPU2933+21−2143.0%+48.445.2%703
51.2%
 EXchess 7.71b 64-bit 4CPU2932+28−2853.3%−22.643.2%403
50.2%
 Fizbo 1.4 64-bit 4CPU2932+28−2845.9%+25.244.7%394
53.5%
 Ethereal 8.62 64-bit 4CPU2931+22−2244.2%+35.149.7%600
55.9%
 Spark 0.3 64-bit 4CPU2928+23−2346.5%+20.449.7%572
53.3%
 Arasan 18.0 64-bit 4CPU2926+29−2947.2%+16.141.5%378
50.5%
50Thinker 5.4d Inert 64-bit 4CPU2926+22−2346.0%+24.349.7%587
57.1%
 Thinker 5.4c Inert 64-bit 4CPU2924+15−1548.1%+12.639.4%1502
62.1%
51Marvin 3.2.0 64-bit 4CPU2919+21−2153.7%−26.043.0%698
51.9%
 Toga II 3.0 4CPU2919+22−2245.6%+26.949.0%592
57.8%
52Gogobello 2.0 64-bit 4CPU2915+26−2653.3%−23.338.7%486
54.9%
53DisasterArea 1.65 64-bit 4CPU2913+21−2144.2%+35.946.1%709
50.7%
 Topple 0.6.0 64-bit 4CPU2912+107−9775.0%−166.832.4%34
50.9%
 Crafty 23.8 64-bit 4CPU2911+34−3447.6%+16.247.2%267
60.2%
 Thinker 5.4a Inert 64-bit 4CPU2905+23−2347.3%+20.245.4%560
51.6%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.341.6%2041
57.0%
 The Baron 3.41 64-bit 4CPU2902+20−2039.1%+71.343.8%800
66.2%
54Bright 0.4a 4CPU2897+15−1547.4%+17.041.1%1495
49.8%
 Cheng4 0.36c 64-bit 4CPU2897+30−3048.8%+6.346.6%326
51.8%
55‑56Glaurung 2.2 64-bit 4CPU2896+16−1647.0%+19.440.7%1259
49.7%
55‑56Tornado 6.0 64-bit 4CPU2896+26−2645.1%+30.343.5%453
54.9%
 Tornado 7.0 64-bit 4CPU2894+25−2545.3%+30.839.2%502
51.9%
 Tornado 8.0 64-bit 4CPU2893+19−1945.2%+31.039.0%881
57.0%
 Bright 0.5c 4CPU2890+23−2347.2%+19.742.9%616
58.3%
57Octochess r5506 64-bit 4CPU2887+21−2144.5%+36.046.7%715
54.2%
58MinkoChess 1.3 64-bit 4CPU2886+21−2146.0%+24.143.7%725
50.1%
 Tornado 4.88 64-bit 4CPU2886+26−2646.0%+24.041.5%479
51.4%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
57.0%
 Pedone 1.3 64-bit 4CPU2882+29−2946.6%+20.051.0%355
54.8%
 Fruit Reloaded 3.2.1 64-bit 4CPU2880+18−1838.8%+74.338.7%1008
53.3%
 Crafty 24.1 64-bit 4CPU2878+31−3243.5%+41.539.1%322
56.8%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.4%+16.344.0%445
62.5%
 Glaurung 2.1 64-bit 4CPU2869+18−1942.8%+51.341.3%946
56.1%
 Bobcat 6.4b 64-bit 4CPU2867+27−2748.3%+11.046.5%415
52.0%
 EXchess 7.18b 64-bit 4CPU2866+35−3646.7%+19.837.9%256
48.5%
 The Baron 3.29 64-bit 4CPU2866+25−2546.3%+23.143.1%489
53.1%
 Crafty 23.4 64-bit 4CPU2865+37−3747.2%+16.635.2%236
58.9%
 Gaviota 0.86 64-bit 4CPU2860+24−2453.4%−26.732.6%617
53.6%
 Arasan 16.3 64-bit 4CPU2858+34−3449.1%+4.340.2%276
51.8%
 Scorpio 2.7.5 64-bit 4CPU2857+36−3644.1%+33.750.9%230
51.4%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+44.541.3%310
57.3%
59Monolith 1.0 64-bit 4CPU2852+23−2347.5%+15.242.7%627
76.8%
60Shield 2.1 64-bit 4CPU2840+24−2448.9%+8.236.9%591
55.8%
61‑62BugChess2 1.9 64-bit 4CPU2838+21−2143.4%+44.138.2%738
47.9%
61‑62Loop 13.6 (Loop 2007) 64-bit 4CPU2838+19−1948.3%+11.942.7%878
52.2%
 Crafty 23.3 64-bit 4CPU2837+31−3241.5%+55.638.2%325
59.3%
63Cheese 2.0 64-bit 4CPU2832+33−3345.0%+30.839.6%298
49.6%
 Topple 0.5.0 64-bit 4CPU2832+60−6236.7%+83.142.2%83
50.8%
 Counter 3.2 64-bit 4CPU2831+50−5143.5%+41.039.8%123
51.4%
 Bright 0.3a 4CPU2830+18−1842.4%+51.441.8%988
54.4%
 Glaurung 2.0.1 64-bit 4CPU2829+17−1743.8%+38.543.5%1100
64.4%
 Octochess r5190 64-bit 4CPU2823+24−2445.9%+24.244.5%555
58.8%
 Pedone 1.1 64-bit 4CPU2819+31−3153.7%−32.039.5%347
56.6%
64Jonny 4.00 4CPU2815+25−2543.6%+42.735.0%540
71.4%
 Bright 0.2c 4CPU2806+21−2143.9%+39.943.2%724
58.7%
 Pedone 1.2 64-bit 4CPU2801+39−3949.5%+1.741.0%210
53.7%
 Laser 1.0 64-bit 4CPU2798+39−4037.2%+84.139.6%207
59.1%
 Crafty 23.1 64-bit 4CPU2792+36−3743.8%+42.736.9%241
75.2%
 Arminius 2018-12-23 64-bit 4CPU2766+59−6136.6%+94.236.6%93
50.6%
 Glaurung 1.2.1 64-bit 4CPU2765+19−1940.2%+64.538.1%967
67.8%
 Crafty 23.0 64-bit 4CPU2759+18−1839.0%+77.934.1%1042
83.0%
 Alfil 13.1 64-bit 4CPU2742+28−2842.1%+51.534.2%424
70.8%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
50.8%
 Igel 1.5.1 64-bit 4CPU2731+89−9145.5%+28.360.6%33
54.6%
65Nebula 2.0 64-bit 4CPU2725+21−2144.9%+36.734.5%831
62.9%
 Scorpio 2.1 64-bit 4CPU2719+27−2734.4%+109.331.6%490
55.6%
 Bagatur 1.7a 64-bit 4CPU2711+95−9841.2%+65.635.3%34
52.2%
 Minic 0.57 64-bit 4CPU2708+92−9540.0%+65.040.0%35
56.3%
66Igel 1.4.1 64-bit 4CPU2699+28−2850.7%−6.326.3%448
74.1%
67Hamsters 0.7.1 4CPU2686+32−3252.4%−14.536.2%318
54.4%
68RedQueen 1.1.98 64-bit 4CPU2683+27−2839.5%+81.027.8%474
60.5%
69ECE X3 64-bit 4CPU2679+23−2441.8%+65.024.3%674
61.8%
70Pharaon 3.5.1 4CPU2673+26−2643.6%+42.029.7%518
58.9%
71Jellyfish 1.1 64-bit 4CPU2669+30−3054.7%−34.932.5%382
64.0%
 RedQueen 1.1.97 64-bit 4CPU2662+22−2245.7%+26.933.3%726
71.2%
72Ghost 3.1 64-bit 4CPU2652+30−3053.9%−26.228.5%393
53.5%
73Arminius 2015-08-06 64-bit 4CPU2650+33−3344.2%+37.936.1%302
53.6%
 Gaviota 0.83 64-bit 4CPU2648+25−2547.3%+20.427.9%566
56.4%
 Asymptote 0.5 64-bit 4CPU2639+93−10026.5%+138.947.1%34
82.1%
74Fridolin 2.00 64-bit 4CPU2588+34−3441.9%+57.331.3%297
92.1%
75Delphil 3.2 64-bit 4CPU2555+32−3240.0%+74.130.6%340
54.2%
76Jazz 840 64-bit 4CPU2553+20−2057.8%−63.825.3%1000
91.6%
77Nemeton 1.8 4CPU2529+27−2749.9%+1.727.2%496
86.5%
78Jumbo 0.6.66 64-bit 4CPU2508+28−2850.0%−1.033.0%433
87.7%
79Myrddin 0.87 64-bit 4CPU2482+35−3538.9%+81.328.4%296
86.1%
 Invictus r228 64-bit 4CPU2339+242−29528.6%+166.70.0%7
 

Results matrix

Free 4-CPU engines (best versions only), top 12
#NameElo1
Stock
2
Komod
3
Fire
4
Ether
5
Laser
6
Fizbo
7
Andsc
8
Booot
9
Xipho
10
Schoo
11
Houdi
12
Gull
1Stockfish 10 64-bit 4CPU3463  37.5 − 10.5
+27−0=21
+37		33.5 − 14.5
+19−0=29
−51		 44.5 − 11.5
+34−1=21
+12		34.5 − 7.5
+27−0=15
+26		33.5 − 10.5
+24−1=19
−35		38.5 − 5.5
+33−0=11
+76		   
2Komodo 10 64-bit 4CPU3346           38.5 − 11.5
+28−1=21
+7
3Fire 7.1 64-bit 4CPU332110.5 − 37.5
+0−27=21
−37		  20 − 12
+9−1=22
+44		9.5 − 6.5
+3−0=13
+7		25.5 − 20.5
+11−6=29
−13		9.5 − 6.5
+4−1=11
0		24.5 − 13.5
+12−1=25
+19		17.5 − 14.5
+4−1=27
−47		4.5 − 1.5
+3−0=3
+31		 27 − 13
+15−1=24
−42
4Ethereal 11.00 64-bit 4CPU329814.5 − 33.5
+0−19=29
+51		 12 − 20
+1−9=22
−44		  19.5 − 12.5
+8−1=23
+36		 16 − 16
+1−1=30
−36		17.5 − 14.5
+4−1=27
−23		21 − 11
+11−1=20
−14		  
5Laser 1.7 64-bit 4CPU3282  6.5 − 9.5
+0−3=13
−7		  4.5 − 1.5
+3−0=3
+148		13.5 − 12.5
+5−4=17
−2		3.5 − 2.5
+1−0=5
+17		6 − 4
+2−0=8
+21		7 − 9
+2−4=10
−118		7.5 − 2.5
+5−0=5
+56		 
6Fizbo 2 64-bit 4CPU327811.5 − 44.5
+1−34=21
−12		 20.5 − 25.5
+6−11=29
+13		12.5 − 19.5
+1−8=23
−36		1.5 − 4.5
+0−3=3
−148		 3.5 − 2.5
+1−0=5
+34		21.5 − 16.5
+11−6=21
+23		16.5 − 15.5
+5−4=23
−18		22.5 − 16.5
+11−5=23
−35		 23 − 9
+15−1=16
+35
7Andscacs 0.95 64-bit 4CPU32707.5 − 34.5
+0−27=15
−26		 6.5 − 9.5
+1−4=11
0		 12.5 − 13.5
+4−5=17
+2		2.5 − 3.5
+0−1=5
−34		 2.5 − 3.5
+0−1=5
−45		6 − 4
+2−0=8
+30		10.5 − 5.5
+6−1=9
+22		6.5 − 3.5
+5−2=3
+18		 
8Booot 6.3.1 64-bit 4CPU326210.5 − 33.5
+1−24=19
+35		 13.5 − 24.5
+1−12=25
−19		16 − 16
+1−1=30
+36		2.5 − 3.5
+0−1=5
−17		16.5 − 21.5
+6−11=21
−23		3.5 − 2.5
+1−0=5
+45		 16 − 16
+6−6=20
−13		24.5 − 13.5
+14−3=21
+22		  
9Xiphos 0.4 64-bit 4CPU32515.5 − 38.5
+0−33=11
−76		 14.5 − 17.5
+1−4=27
+47		14.5 − 17.5
+1−4=27
+23		4 − 6
+0−2=8
−21		15.5 − 16.5
+4−5=23
+18		4 − 6
+0−2=8
−30		16 − 16
+6−6=20
+13		 26.5 − 16.5
+12−2=29
+15		5.5 − 4.5
+2−1=7
−34		 
10Schooner 2.0.34 64-bit 4CPU3200  1.5 − 4.5
+0−3=3
−31		11 − 21
+1−11=20
+14		9 − 7
+4−2=10
+118		16.5 − 22.5
+5−11=23
+35		5.5 − 10.5
+1−6=9
−22		13.5 − 24.5
+3−14=21
−22		16.5 − 26.5
+2−12=29
−15		 4.5 − 5.5
+2−3=5
−46		 
11Houdini 1.5a 64-bit 4CPU3185    2.5 − 7.5
+0−5=5
−56		 3.5 − 6.5
+2−5=3
−18		 4.5 − 5.5
+1−2=7
+34		5.5 − 4.5
+3−2=5
+46		  
12Gull 3 64-bit 4CPU3180 11.5 − 38.5
+1−28=21
−7		13 − 27
+1−15=24
+42		  9 − 23
+1−15=16
−35		      
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
Sto
2
Kom
3
Fir
4
Eth
5
Las
6
Fiz
7
And
8
Boo
9
Xip
10
Sch
11
Hou
12
Gul
1Stockfish 10 64-bit 4CPU3463 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Komodo 10 64-bit 4CPU33460.0 96.099.999.9100.0100.0100.0100.0100.0100.0100.0
3Fire 7.1 64-bit 4CPU33210.04.0 96.698.8100.099.9100.0100.0100.0100.0100.0
4Ethereal 11.00 64-bit 4CPU32980.00.13.4 80.595.694.099.7100.0100.0100.0100.0
5Laser 1.7 64-bit 4CPU32820.00.11.219.5 60.472.586.695.5100.0100.0100.0
6Fizbo 2 64-bit 4CPU32780.00.00.04.439.6 67.691.598.8100.0100.0100.0
7Andscacs 0.95 64-bit 4CPU32700.00.00.16.027.532.4 67.085.4100.0100.0100.0
8Booot 6.3.1 64-bit 4CPU32620.00.00.00.313.48.533.0 80.8100.0100.0100.0
9Xiphos 0.4 64-bit 4CPU32510.00.00.00.04.51.214.619.2 100.0100.0100.0
10Schooner 2.0.34 64-bit 4CPU32000.00.00.00.00.00.00.00.00.0 85.595.8
11Houdini 1.5a 64-bit 4CPU31850.00.00.00.00.00.00.00.00.014.5 67.8
12Gull 3 64-bit 4CPU31800.00.00.00.00.00.00.00.00.04.232.2 
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
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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 May 25, 2019