CCRL 40/15
Downloads and Statistics
February 8, 2020
Testing summary:
Total: 1'120'733 games
played by 2'610 programs

White wins: 387'881 (34.6%)
Black wins: 287'767 (25.7%)
Draws: 445'085 (39.7%)
White score: 54.5%

Free 4-CPU engines

Comparing 309 engines!
82 best versions of selected engines played 10546 games with each other

CCRL 40/15 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 15 minutes on an Intel i7-4770k.
Computed on February 8, 2020 with Bayeselo based on 1'120'733 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 11 64-bit 4CPU3497+27−2672.8%−143.850.4%454 
52.9%
 Stockfish 2019-10-09 64-bit 4CPU3495+28−2772.9%−144.252.9%420
77.2%
 SugaR NN 1.1 64-bit 4CPU3483+20−2072.5%−148.549.4%826
91.8%
 Stockfish 10 64-bit 4CPU3465+16−1672.0%−145.452.0%1307
54.0%
 SugaR 1.6.1 64-bit 4CPU3464+25−2569.0%−118.757.4%479
67.7%
 Stockfish 270918 64-bit 4CPU3455+28−2777.9%−189.143.3%457
56.7%
 ShashChess 8.0 64-bit 4CPU3452+20−2068.3%−111.160.4%712
85.6%
 SugaR XPrO 1.5.3 64-bit 4CPU3435+24−2471.8%−144.451.3%544
55.0%
 Stockfish 9 64-bit 4CPU3433+15−1572.3%−153.450.5%1423
95.5%
 SugaR XPrO 1.4 64-bit 4CPU3412+20−2072.3%−150.251.8%840
55.7%
 asmFish 051117 64-bit 4CPU3410+20−1969.8%−130.255.7%819
75.4%
 SugaR XPrO 1.2 64-bit 4CPU3400+21−2070.4%−135.852.5%754
63.0%
 ShashChess Pro 1.0 64-bit 4CPU3393+33−3365.6%−93.561.7%256
77.6%
 Stockfish 8 64-bit 4CPU3379+13−1365.1%−96.262.1%1647
64.5%
 SugaR XPrO 1.3 64-bit 4CPU3374+23−2266.0%−102.557.4%598
91.4%
2Ethereal 11.75 64-bit 4CPU3352+22−2247.6%+13.465.0%572
60.2%
3Komodo 10 64-bit 4CPU3347+23−2276.6%−172.644.0%700
63.9%
4Xiphos 0.6 64-bit 4CPU3341+22−2243.8%+38.562.3%570
79.2%
 Ethereal 11.53 64-bit 4CPU3328+22−2252.3%−12.864.0%542
53.1%
 Stockfish 7 64-bit 4CPU3327+15−1567.0%−106.057.3%1304
63.3%
5Fire 7.1 64-bit 4CPU3323+13−1352.0%−12.660.7%1857
86.1%
 Xiphos 0.5 64-bit 4CPU3311+19−1943.9%+39.164.2%745
55.3%
 Komodo 9 64-bit 4CPU3309+20−2070.4%−124.252.7%804
69.3%
 Ethereal 11.25 64-bit 4CPU3301+21−2146.3%+23.865.5%588
51.6%
 Ethereal 11.00 64-bit 4CPU3300+19−1947.0%+18.463.2%778
74.3%
 Stockfish 6 64-bit 4CPU3292+14−1465.3%−94.357.3%1542
61.3%
 Fire 6.1 64-bit 4CPU3289+18−1848.5%+7.458.4%940
52.7%
6RofChade 2.202 64-bit 4CPU3288+20−2042.4%+46.461.9%682
55.0%
 Komodo 8 64-bit 4CPU3286+16−1669.8%−126.749.0%1298
51.8%
7‑8Defenchess 2.2 64-bit 4CPU3285+20−2042.7%+46.760.4%694
49.4%
7‑8Laser 1.7 64-bit 4CPU3285+17−1742.3%+49.561.4%964
73.2%
 Ethereal 10.55 64-bit 4CPU3276+25−2449.8%−2.057.4%488
48.7%
9Fizbo 2 64-bit 4CPU3276+12−1243.6%+40.254.9%2047
65.1%
10Schooner 2.2 64-bit 4CPU3270+26−2646.3%+24.460.7%402
50.7%
 Stockfish 5 64-bit 4CPU3270+15−1567.7%−109.254.0%1346
61.0%
11Andscacs 0.95 64-bit 4CPU3267+18−1841.7%+50.559.0%866
51.6%
 Fire 5 64-bit 4CPU3266+18−1846.9%+18.162.5%867
55.7%
 Andscacs 0.94 64-bit 4CPU3264+18−1847.2%+18.454.2%907
50.7%
12Booot 6.3.1 64-bit 4CPU3264+15−1542.8%+45.657.3%1350
75.3%
 Fizbo 1.9 64-bit 4CPU3256+17−1745.7%+26.155.5%1004
61.1%
 Xiphos 0.4 64-bit 4CPU3252+19−1943.8%+39.461.1%830
53.5%
 RofChade 2.1 64-bit 4CPU3251+25−2544.4%+36.660.0%452
72.8%
 Andscacs 0.921 64-bit 4CPU3241+16−1650.7%−6.447.5%1225
52.2%
 Andscacs 0.93 64-bit 4CPU3240+18−1842.9%+45.854.8%938
66.1%
 Stockfish DD 64-bit 4CPU3235+17−1763.0%−78.456.1%1032
52.9%
13RubiChess 1.6 64-bit 4CPU3234+27−2761.1%−68.351.3%409
58.7%
 Andscacs 0.91 64-bit 4CPU3230+22−2242.5%+47.659.2%596
52.9%
 Komodo 7a 64-bit 4CPU3229+18−1860.7%−65.459.0%897
59.9%
14Arasan 21.4 64-bit 4CPU3224+27−2746.8%+16.455.7%402
52.5%
 Andscacs 0.89 64-bit 4CPU3223+21−2145.9%+28.955.0%662
58.7%
 Komodo TCEC 64-bit 4CPU3220+18−1861.7%−73.755.1%925
56.8%
 Booot 6.2 64-bit 4CPU3218+14−1442.9%+46.459.3%1517
49.4%
 Laser 1.6 64-bit 4CPU3218+16−1643.5%+44.155.2%1124
55.1%
 Schooner 2.1 64-bit 4CPU3216+23−2344.6%+34.255.5%550
55.5%
 Andscacs 0.88 64-bit 4CPU3214+28−2845.0%+30.954.8%387
55.3%
 Komodo 6 64-bit 4CPU3212+17−1758.6%−52.956.7%1065
60.6%
 Andscacs 0.90 64-bit 4CPU3208+24−2450.3%+2.255.1%515
53.0%
 Stockfish 4 64-bit 4CPU3206+17−1660.9%−63.858.9%1054
63.3%
 Schooner 2.0.34 64-bit 4CPU3202+20−2049.3%+3.257.9%734
52.2%
 Komodo 5.1 64-bit 4CPU3201+20−2061.8%−72.154.8%715
51.2%
 Andscacs 0.872 64-bit 4CPU3200+24−2451.3%−4.658.8%476
53.7%
 Fire 4 64-bit 4CPU3199+13−1346.5%+22.159.7%1885
53.9%
 Arasan 21.3 64-bit 4CPU3197+31−3145.6%+33.156.4%298
63.9%
 Ethereal 10.00 64-bit 4CPU3191+20−2053.4%−23.750.8%788
68.0%
15Houdini 1.5a 64-bit 4CPU3184+18−1862.2%−80.145.0%991
57.6%
16NirvanaChess 2.4 64-bit 4CPU3182+13−1341.5%+56.654.1%1794
52.5%
17Gull 3 64-bit 4CPU3181+9−1041.9%+52.654.4%3673
54.1%
 Fizbo 1.8 64-bit 4CPU3180+21−2143.6%+43.049.7%708
51.0%
 Xiphos 0.3 64-bit 4CPU3180+21−2149.2%+3.254.2%660
51.1%
 Gull 2.8b 64-bit 4CPU3179+19−1949.1%+4.151.8%797
53.6%
18Vajolet2 2.7 64-bit 4CPU3178+28−2754.3%−25.354.6%381
52.0%
 RofChade 2.0 64-bit 4CPU3177+21−2149.7%+1.357.7%620
56.7%
19Equinox 3.20 64-bit 4CPU3175+11−1141.9%+52.258.9%2615
52.4%
20ChessBrainVB 3.72 4CPU3174+31−3145.2%+28.851.6%304
51.9%
 Arasan 21.2 64-bit 4CPU3173+30−3052.2%−12.560.6%302
58.2%
 Arasan 21.1 64-bit 4CPU3168+27−2751.2%−7.259.5%383
50.9%
 Booot 6.1 64-bit 4CPU3168+20−2041.6%+51.960.6%708
52.6%
 Stockfish 3 64-bit 4CPU3167+21−2156.0%−35.357.8%663
53.2%
 Igel 2.3.1 64-bit 4CPU3164+74−7450.0%−0.556.9%51
50.0%
 RubiChess 1.5 64-bit 4CPU3164+29−2952.4%−14.654.3%348
53.0%
 Equinox 3.30 64-bit 4CPU3162+18−1843.9%+39.258.9%896
60.0%
21Critter 1.6a 64-bit 4CPU3160+8−845.3%+31.854.6%5429
69.9%
22Hannibal 1.7 64-bit 4CPU3156+14−1442.2%+48.254.5%1561
59.4%
 NirvanaChess 2.3 64-bit 4CPU3153+18−1841.4%+55.456.8%869
56.1%
 Fire 3.0 64-bit 4CPU3151+17−1749.5%+2.658.2%948
50.5%
23Nemorino 5.00 64-bit 4CPU3151+18−1848.1%+9.952.3%878
53.0%
24Bouquet 1.8 64-bit 4CPU3150+11−1143.6%+41.256.7%2427
57.2%
 Critter 1.4 64-bit 4CPU3148+19−1860.1%−61.853.7%873
50.8%
 Stockfish 2.2.2 64-bit 4CPU3148+16−1659.2%−56.853.4%1141
56.4%
 Andscacs 0.86 64-bit 4CPU3146+21−2141.6%+54.155.0%705
47.9%
 Critter 1.2 64-bit 4CPU3146+20−2058.9%−54.752.9%762
55.7%
 Laser 1.5 64-bit 4CPU3144+20−2049.4%+8.354.5%723
50.7%
25Texel 1.07 64-bit 4CPU3144+14−1449.8%+3.649.3%1604
52.9%
 Gull 2.3 64-bit 4CPU3143+17−1747.4%+15.059.3%982
50.0%
 Stockfish 2.3.1 64-bit 4CPU3143+19−1955.4%−33.052.5%846
52.4%
26Pedone 1.8 64-bit 4CPU3142+28−2846.7%+18.757.4%350
55.5%
 NirvanaChess 2.2 64-bit 4CPU3140+17−1840.7%+59.657.5%961
50.9%
27Protector 1.9.0 64-bit 4CPU3139+15−1546.3%+26.154.1%1313
55.5%
28Alfil 15.7 64-bit 4CPU3138+17−1742.9%+48.056.3%1006
51.9%
 Vajolet2 2.6.1 64-bit 4CPU3137+21−2150.8%−4.560.3%605
56.5%
 Andscacs 0.85 64-bit 4CPU3134+25−2543.9%+42.953.1%467
53.9%
 Bouquet 1.5 64-bit 4CPU3133+23−2346.4%+20.063.6%500
49.4%
 Sting SF 6 64-bit 4CPU3133+28−2850.8%−6.761.0%354
50.7%
 Texel 1.06 64-bit 4CPU3133+20−2046.1%+24.953.6%739
50.2%
 Sting SF 4.8.4 64-bit 4CPU3132+29−2953.3%−20.562.4%330
51.0%
 Wasp 3.60 64-bit 4CPU3132+58−5943.6%+31.064.1%78
53.7%
 DeepSaros 4.1.6 64-bit 4CPU3129+26−2645.2%+28.257.5%419
51.9%
 Stockfish 2.0.1 64-bit 4CPU3128+24−2456.4%−40.948.6%514
51.0%
 Pedone 1.9 64-bit 4CPU3127+29−2949.3%+2.756.3%336
51.4%
29iCE 4.0 64-bit 4CPU3126+29−2948.6%+6.350.3%346
52.9%
 ChessBrainVB 3.68 4CPU3125+26−2649.2%+4.151.6%428
49.6%
 Gull 3.1 64-bit 4CPU3125+30−3045.4%+33.645.1%359
50.0%
 Protector 1.8.0 64-bit 4CPU3125+28−2850.4%−1.554.7%386
54.0%
30BlackMamba 2.0 64-bit 4CPU3124+15−1544.2%+37.454.3%1408
56.5%
 Arasan 20.4.1 64-bit 4CPU3121+26−2551.7%−10.450.2%452
50.4%
 Fizbo 1.7 64-bit 4CPU3121+27−2756.1%−38.652.2%410
54.5%
 Elektro 1.2 64-bit 4CPU3119+23−2346.1%+26.955.5%546
51.2%
 Sting SF 5 64-bit 4CPU3118+25−2548.1%+13.054.0%465
57.1%
 Stockfish 1.9.1 64-bit 4CPU3115+22−2260.9%−73.246.6%639
53.7%
 IvanHoe 9.46h 64-bit 4CPU3114+14−1453.2%−19.359.5%1542
50.6%
 Stockfish 2.1.1 64-bit 4CPU3114+27−2754.7%−29.348.3%406
53.5%
 RobboLito 0.21Q 64-bit 4CPU3112+22−2250.9%−5.762.7%569
50.8%
31Winter 0.7 64-bit 4CPU3112+27−2745.1%+31.647.2%422
51.9%
 Hannibal 1.5 64-bit 4CPU3111+19−1953.2%−20.557.1%819
49.2%
32Senpai 2.0 64-bit 4CPU3111+20−2051.6%−11.748.6%780
54.5%
 Sting SF 3 64-bit 4CPU3110+21−2147.7%+11.458.5%644
48.5%
 Sting SF 9 64-bit 4CPU3110+28−2848.0%+11.347.2%381
52.4%
 Bouquet 1.6 64-bit 4CPU3109+21−2150.0%−0.160.7%641
51.4%
 Sting SF 2 64-bit 4CPU3109+27−2748.8%+7.958.1%375
51.1%
 Stockfish 1.8 64-bit 4CPU3108+19−1962.0%−80.549.4%864
52.7%
 ChessBrainVB 3.66 4CPU3107+28−2854.2%−27.248.7%378
54.1%
 Andscacs 0.83 64-bit 4CPU3105+29−2946.6%+18.651.2%338
50.0%
 Stockfish 1.7.1 64-bit 4CPU3105+19−1960.4%−68.452.6%882
53.3%
 Xiphos 0.2.2 64-bit 4CPU3103+26−2647.3%+14.553.6%414
52.9%
33Wasp 3.50 64-bit 4CPU3102+20−2050.4%−4.653.6%785
58.8%
 Gull 2.2 64-bit 4CPU3099+25−2544.5%+30.854.8%469
50.8%
 Vajolet2 2.5 64-bit 4CPU3098+24−2451.5%−9.554.0%493
55.9%
34Naum 4.6 64-bit 4CPU3096+14−1448.1%+11.754.3%1544
49.3%
 Nemorino 4.00 64-bit 4CPU3096+22−2250.0%+1.752.9%624
50.1%
 NirvanaChess 2.1c 64-bit 4CPU3096+22−2245.2%+31.447.7%608
51.6%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+49.648.9%562
61.3%
 Arasan 20.3 64-bit 4CPU3090+32−3252.5%−20.647.4%302
50.2%
 Laser 1.4 64-bit 4CPU3089+19−1949.6%+0.945.7%843
52.9%
 Critter 1.01 64-bit 4CPU3088+27−2746.1%+22.854.8%385
50.6%
 Pedone 1.7 64-bit 4CPU3088+19−1948.2%+11.256.4%801
58.1%
 Texel 1.05 64-bit 4CPU3085+17−1747.3%+18.951.4%1016
55.8%
 Andscacs 0.82 64-bit 4CPU3083+29−2950.6%−3.255.2%330
56.7%
 Critter 0.90 64-bit 4CPU3079+31−3147.6%+13.546.5%316
52.5%
 Andscacs 0.81 64-bit 4CPU3078+31−3148.7%+5.349.3%300
49.2%
 Hannibal 1.4b 64-bit 4CPU3078+15−1542.3%+47.551.3%1332
57.0%
 Protector 1.7.0 64-bit 4CPU3076+19−1944.1%+36.650.6%834
52.0%
 Demolito 2019-04-27 64-bit 4CPU3074+66−6650.0%−0.038.9%72
51.2%
 Nemorino 3.0 64-bit 4CPU3073+27−2747.9%+12.846.1%427
52.6%
 Protector 1.6.0 64-bit 4CPU3072+21−2243.2%+44.250.2%656
50.7%
35Rodent III 0.238 64-bit 4CPU3071+20−2047.2%+15.350.0%742
56.5%
 Rodent III 0.276 64-bit 4CPU3068+29−2949.6%+4.258.2%337
53.9%
 RubiChess 1.3 64-bit 4CPU3067+22−2252.8%−18.344.2%642
51.2%
 Defenchess 1.1f 64-bit 4CPU3066+18−1951.7%−11.745.3%916
62.1%
 Wasp 3.0 64-bit 4CPU3061+25−2551.1%−8.155.0%462
55.5%
 Texel 1.04 64-bit 4CPU3059+20−2143.1%+42.947.8%722
54.5%
 Alfil 15.8 64-bit 4CPU3057+22−2253.9%−24.147.9%631
49.9%
36Demolito 2018-10-29 64-bit 4CPU3057+32−3249.0%+3.950.7%288
50.7%
 NirvanaChess 2.0a 64-bit 4CPU3057+30−3044.7%+35.650.1%337
50.5%
 Protector 1.5.0 64-bit 4CPU3057+18−1842.5%+47.247.4%952
57.0%
 Pedone 1.6 64-bit 4CPU3054+23−2349.5%+2.757.7%508
50.9%
37Amoeba 3.0 64-bit 4CPU3053+26−2654.8%−31.844.8%466
53.4%
 Ethereal 9.00 64-bit 4CPU3052+23−2346.8%+18.645.1%570
69.7%
 Vajolet2 2.4 64-bit 4CPU3044+19−1947.2%+18.145.7%878
53.0%
 Vajolet2 2.2 64-bit 4CPU3043+27−2747.0%+14.948.7%423
55.2%
 Arasan 19.2 64-bit 4CPU3040+31−3151.7%−11.455.0%289
50.9%
 Gull R375 64-bit 4CPU3040+22−2243.4%+36.757.4%605
47.8%
 Stockfish 1.6.3 64-bit 4CPU3040+22−2258.2%−53.944.8%631
50.1%
 Wasp 2.6 64-bit 4CPU3040+18−1848.9%+8.447.2%968
63.2%
 Critter 0.80 64-bit 4CPU3034+31−3050.9%−8.348.3%321
50.4%
 Hannibal 1.3 64-bit 4CPU3034+22−2243.0%+42.948.6%642
51.2%
 Pedone 1.5 64-bit 4CPU3033+31−3149.5%+3.851.6%304
51.6%
 Wasp 2.01 64-bit 4CPU3032+30−3055.3%−31.754.5%321
56.0%
 Arasan 20.0 64-bit 4CPU3029+30−3047.4%+16.653.4%328
51.8%
 Vajolet2 2.3 64-bit 4CPU3028+31−3145.2%+25.653.5%303
53.9%
38Bobcat 8.0 64-bit 4CPU3026+21−2148.3%+11.653.5%636
54.3%
 Andscacs 0.80 64-bit 4CPU3024+31−3150.2%−1.246.7%317
49.5%
 Senpai 1.0 64-bit 4CPU3024+16−1646.2%+21.553.5%1095
56.3%
39Pirarucu 2.7.4 64-bit 4CPU3022+21−2154.9%−35.047.0%681
51.1%
 Pirarucu 2.9.5 64-bit 4CPU3022+34−3450.0%−2.552.6%249
57.1%
40Rybka 2.3.2a 64-bit 4CPU3018+13−1362.8%−85.943.9%1928
50.9%
 Winter 0.6 64-bit 4CPU3018+32−3253.0%−28.235.6%329
51.1%
41Spike 1.4 Leiden 4CPU3017+11−1145.2%+29.547.7%2862
52.2%
 Arasan 19.0.1 64-bit 4CPU3016+32−3252.3%−19.241.6%298
53.3%
42‑43Crafty 25.2 64-bit 4CPU3015+16−1648.5%+8.942.5%1279
50.4%
42‑43chess22k 1.10 64-bit 4CPU3015+22−2246.7%+16.243.7%680
53.2%
 Nemorino 2.00 64-bit 4CPU3013+30−3047.0%+16.359.6%302
55.7%
44Cheng 4.39 64-bit 4CPU3011+15−1550.0%−0.349.1%1288
48.2%
 Laser 1.3 64-bit 4CPU3011+29−3047.2%+15.855.8%321
50.5%
 Texel 1.03 64-bit 4CPU3011+31−3150.3%−1.347.0%313
66.3%
 Pedone 1.4.1 64-bit 4CPU3002+30−3048.5%+7.755.7%305
53.3%
 Vajolet2 2.1 64-bit 4CPU3000+25−2550.9%−3.948.5%462
53.2%
 Rodent III 0.210 64-bit 4CPU2998+28−2845.1%+33.242.5%402
58.7%
 Fizbo 1.5 64-bit 4CPU2994+27−2752.6%−16.448.5%410
66.9%
45Scorpio 2.8 64-bit 4CPU2985+25−2549.9%−0.347.2%472
54.7%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+49.542.9%912
55.4%
 Bobcat 7.6 64-bit 4CPU2981+32−3250.0%+0.041.7%302
49.0%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+23.842.4%531
63.8%
 Rybka 2.2 64-bit 4CPU2976+20−2063.6%−93.041.1%859
52.9%
 Arasan 18.3 64-bit 4CPU2974+30−3046.6%+20.846.8%327
54.3%
 Arasan 18.2 64-bit 4CPU2972+28−2851.9%−14.950.3%388
49.2%
46EXchess 7.97b 64-bit 4CPU2972+18−1847.4%+18.945.9%1017
57.7%
47Spark 1.0 64-bit 4CPU2970+13−1345.0%+32.146.6%1787
49.9%
 Stockfish 1.5.1 64-bit 4CPU2970+25−2453.7%−23.147.7%495
62.1%
 Demolito 2017-08-26 64-bit 4CPU2965+21−2140.2%+63.340.8%748
52.3%
 Winter 0.5 64-bit 4CPU2964+26−2650.4%−5.538.3%470
52.1%
 Protector 1.3.6 64-bit 4CPU2963+32−3246.6%+18.344.3%307
58.2%
48Toga II 4.0 64-bit 4CPU2959+18−1941.4%+56.540.4%958
50.5%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+30.048.6%356
54.1%
 Fizbo 1.31 64-bit 4CPU2956+30−2951.1%−6.441.9%358
60.9%
 Crafty 25.0 64-bit 4CPU2951+25−2548.1%+12.547.9%468
55.3%
 Stockfish 1.4 64-bit 4CPU2949+17−1754.2%−29.142.2%1131
54.8%
 Scorpio 2.7.9 64-bit 4CPU2947+22−2246.7%+20.840.5%659
60.4%
49Gaviota 1.0 64-bit 4CPU2943+16−1647.3%+16.545.4%1256
54.2%
50Tucano 7.07 64-bit 4CPU2941+34−3453.0%−18.444.6%271
51.8%
 EXchess 7.51b 64-bit 4CPU2940+33−3350.7%−2.545.7%276
50.8%
51The Baron 3.44 64-bit 4CPU2940+27−2747.2%+17.544.9%412
57.7%
 Arasan 17.5 64-bit 4CPU2936+27−2748.4%+9.645.1%406
50.3%
 Bobcat 7.1 64-bit 4CPU2935+32−3249.1%+5.746.6%294
50.2%
52Marvin 3.3.2 64-bit 4CPU2935+37−3845.4%+27.444.0%218
53.4%
 EXchess 7.71b 64-bit 4CPU2933+28−2853.3%−22.743.2%403
50.8%
 Fizbo 1.4 64-bit 4CPU2933+28−2845.9%+24.844.7%394
48.9%
 Spark 0.4 64-bit 4CPU2933+21−2143.0%+49.045.2%703
53.2%
 Ethereal 8.62 64-bit 4CPU2932+22−2244.2%+35.749.7%600
58.4%
 Spark 0.3 64-bit 4CPU2928+23−2346.5%+20.949.7%572
52.8%
 Arasan 18.0 64-bit 4CPU2927+29−2947.2%+15.741.5%378
50.2%
53Thinker 5.4d Inert 64-bit 4CPU2927+22−2246.0%+24.049.7%587
58.6%
 Thinker 5.4c Inert 64-bit 4CPU2924+15−1548.1%+12.939.4%1502
53.7%
 Marvin 3.2.0 64-bit 4CPU2923+21−2153.7%−26.743.0%698
57.4%
 Toga II 3.0 4CPU2920+22−2345.6%+26.949.0%592
60.5%
54DisasterArea 1.65 64-bit 4CPU2916+21−2144.2%+35.746.1%709
55.9%
55Gogobello 2.0 64-bit 4CPU2913+25−2550.8%−6.839.1%522
53.2%
 Crafty 23.8 64-bit 4CPU2911+34−3447.6%+16.747.2%267
54.7%
 Asymptote 0.6 64-bit 4CPU2906+84−8351.3%−13.852.5%40
50.5%
 Thinker 5.4a Inert 64-bit 4CPU2905+23−2347.3%+20.045.4%560
50.9%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.541.6%2041
52.7%
 The Baron 3.41 64-bit 4CPU2904+20−2039.1%+70.743.8%800
62.7%
 Cheng4 0.36c 64-bit 4CPU2898+30−3048.8%+6.046.6%326
51.5%
56‑57Bright 0.4a 4CPU2897+15−1547.4%+17.241.1%1495
50.8%
56‑57Tornado 6.0 64-bit 4CPU2897+26−2645.5%+27.343.3%469
50.9%
58Glaurung 2.2 64-bit 4CPU2896+16−1647.0%+19.740.7%1259
51.2%
 Tornado 8.0 64-bit 4CPU2896+19−1945.2%+30.739.0%881
54.3%
 Tornado 7.0 64-bit 4CPU2894+25−2545.3%+31.139.2%502
56.3%
 Bright 0.5c 4CPU2891+23−2347.2%+19.842.9%616
57.2%
59Octochess r5506 64-bit 4CPU2889+21−2144.5%+35.546.7%715
55.6%
60MinkoChess 1.3 64-bit 4CPU2887+21−2146.0%+24.043.7%725
50.7%
 Tornado 4.88 64-bit 4CPU2886+26−2646.0%+24.741.5%479
52.2%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.545.8%996
56.3%
 Pedone 1.3 64-bit 4CPU2883+29−2946.6%+19.651.0%355
51.3%
 Fruit Reloaded 3.2.1 64-bit 4CPU2882+18−1838.8%+74.739.1%1024
56.5%
 Crafty 24.1 64-bit 4CPU2879+31−3243.5%+41.239.1%322
56.9%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.4%+17.044.0%445
64.6%
 Glaurung 2.1 64-bit 4CPU2869+19−1942.8%+50.941.3%946
53.7%
 Bobcat 6.4b 64-bit 4CPU2867+27−2748.3%+11.946.5%415
51.6%
 The Baron 3.29 64-bit 4CPU2867+25−2546.3%+22.343.1%489
51.8%
 EXchess 7.18b 64-bit 4CPU2866+33−3347.3%+16.438.4%292
57.9%
 Scorpio 2.7.5 64-bit 4CPU2861+33−3345.7%+24.650.0%266
51.6%
 Gaviota 0.86 64-bit 4CPU2860+24−2453.4%−26.332.6%617
52.9%
 Arasan 16.3 64-bit 4CPU2859+34−3449.1%+4.140.2%276
49.2%
 Crafty 23.4 64-bit 4CPU2859+34−3446.9%+19.535.7%272
56.6%
61Monolith 1.0 64-bit 4CPU2856+21−2248.6%+7.943.0%693
48.6%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+45.141.3%310
54.4%
62Counter 3.2 64-bit 4CPU2854+32−3250.7%−4.840.2%301
57.0%
63Igel 1.9.0 64-bit 4CPU2850+31−3241.0%+59.239.5%324
50.5%
 Topple 0.7.0 64-bit 4CPU2849+91−9341.3%+57.527.5%40
52.9%
64Cheese 2.0 64-bit 4CPU2845+30−3046.2%+24.538.6%365
52.9%
65Shield 2.1 64-bit 4CPU2844+24−2448.7%+9.836.0%594
62.9%
66BugChess2 1.9 64-bit 4CPU2839+21−2143.4%+44.238.2%738
52.1%
 Crafty 23.3 64-bit 4CPU2838+31−3241.5%+55.138.2%325
48.9%
67Loop 13.6 (Loop 2007) 64-bit 4CPU2838+19−1948.3%+12.442.8%894
72.1%
 Bright 0.3a 4CPU2830+18−1842.4%+51.541.8%988
53.4%
 Glaurung 2.0.1 64-bit 4CPU2829+17−1743.8%+39.043.5%1100
64.1%
 Octochess r5190 64-bit 4CPU2824+24−2445.9%+23.844.5%555
57.8%
 Pedone 1.1 64-bit 4CPU2820+31−3153.7%−32.139.5%347
51.4%
 Arminius 2018-12-23 64-bit 4CPU2819+44−4444.2%+40.836.4%165
53.8%
68Jonny 4.00 4CPU2816+25−2543.6%+42.735.0%540
72.0%
 Bright 0.2c 4CPU2806+21−2143.9%+40.343.2%724
58.6%
 Pedone 1.2 64-bit 4CPU2802+36−3648.4%+8.642.3%246
64.2%
 Crafty 23.1 64-bit 4CPU2792+36−3743.8%+42.936.9%241
52.8%
 Laser 1.0 64-bit 4CPU2790+37−3836.3%+89.939.2%227
58.6%
 Bagatur 1.7a 64-bit 4CPU2775+131−13445.0%+30.820.0%20
55.3%
 Glaurung 1.2.1 64-bit 4CPU2766+19−1940.2%+64.138.1%967
68.4%
 Crafty 23.0 64-bit 4CPU2760+18−1839.0%+77.134.1%1042
68.6%
69Fridolin 3.10 64-bit 4CPU2750+33−3349.5%−0.631.5%308
55.8%
 Alfil 13.1 64-bit 4CPU2746+28−2841.8%+53.734.1%440
76.9%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+115.336.7%607
63.2%
70Nebula 2.0 64-bit 4CPU2727+20−2045.1%+35.334.1%866
65.7%
 Scorpio 2.1 64-bit 4CPU2719+27−2734.4%+109.731.6%490
80.9%
 Igel 1.4.1 64-bit 4CPU2702+28−2850.7%−7.426.3%448
77.0%
71Hamsters 0.7.1 4CPU2686+32−3252.4%−14.336.2%318
53.8%
72RedQueen 1.1.98 64-bit 4CPU2684+27−2739.4%+80.528.5%494
65.5%
73ECE X3 64-bit 4CPU2677+23−2341.5%+68.423.4%709
56.9%
74Pharaon 3.5.1 4CPU2674+26−2643.6%+41.529.7%518
62.4%
75Jellyfish 1.1 64-bit 4CPU2667+29−2953.3%−24.532.3%403
60.2%
 RedQueen 1.1.97 64-bit 4CPU2663+22−2245.7%+26.733.3%726
71.8%
76Ghost 3.1 64-bit 4CPU2652+30−3053.9%−25.828.5%393
53.0%
77Arminius 2015-08-06 64-bit 4CPU2650+33−3344.2%+38.736.1%302
53.3%
 Gaviota 0.83 64-bit 4CPU2648+25−2547.3%+21.227.9%566
99.6%
 Fridolin 2.00 64-bit 4CPU2589+34−3441.9%+57.231.3%297
93.2%
78Delphil 3.2 64-bit 4CPU2555+31−3138.2%+85.430.5%374
52.8%
79Jazz 840 64-bit 4CPU2553+20−2057.8%−63.325.3%1000
90.9%
80Nemeton 1.8 4CPU2530+27−2749.9%+2.227.2%496
86.6%
81Jumbo 0.6.66 64-bit 4CPU2509+28−2850.0%−0.733.0%433
88.1%
82Myrddin 0.87 64-bit 4CPU2483+35−3538.9%+81.028.4%296
86.0%
 Invictus r228 64-bit 4CPU2340+242−29528.6%+167.30.0%7
 

Results matrix

Free 4-CPU engines (best versions only), top 12
#NameElo123456789101112
1Stockfish 11 64-bit 4CPU3497 37.5 − 16.5
+21−0=33
−36
 41.5 − 12.5
+29−0=25
+11
42 − 12
+30−0=24
+2
  42 − 10
+32−0=20
−7
46.5 − 7.5
+39−0=15
+47
   
2Ethereal 11.75 64-bit 4CPU335216.5 − 37.5
+0−21=33
+36
  17 − 15
+4−2=26
+3
16.5 − 15.5
+5−4=23
−21
18 − 14
+6−2=24
−29
18.5 − 13.5
+6−1=25
−26
20 − 12
+9−1=22
0
18.5 − 13.5
+10−5=17
−31
11.5 − 6.5
+6−1=11
−1
  
3Komodo 10 64-bit 4CPU3347            
4Xiphos 0.6 64-bit 4CPU334112.5 − 41.5
+0−29=25
−11
15 − 17
+2−4=26
−3
  16 − 16
+4−4=24
−16
19 − 13
+10−4=18
−1
20.5 − 11.5
+9−0=23
+19
17.5 − 14.5
+7−4=21
−30
19.5 − 12.5
+10−3=19
−2
9.5 − 6.5
+4−1=11
−22
  
5Fire 7.1 64-bit 4CPU332312 − 42
+0−30=24
−2
15.5 − 16.5
+4−5=23
+21
 16 − 16
+4−4=24
+16
 19 − 13
+10−4=18
+19
18 − 14
+5−1=26
−6
19 − 13
+7−1=24
+11
25.5 − 20.5
+11−6=29
−17
10.5 − 7.5
+4−1=13
−5
19.5 − 12.5
+9−2=21
+3
24.5 − 13.5
+12−1=25
+19
6RofChade 2.202 64-bit 4CPU3288 14 − 18
+2−6=24
+29
 13 − 19
+4−10=18
+1
13 − 19
+4−10=18
−19
 15 − 17
+3−5=24
−19
15 − 17
+4−6=22
−21
16 − 16
+6−6=20
−9
10 − 6
+4−0=12
+47
18 − 14
+7−3=22
+11
16.5 − 15.5
+6−5=21
−13
7Defenchess 2.2 64-bit 4CPU3285 13.5 − 18.5
+1−6=25
+26
 11.5 − 20.5
+0−9=23
−19
14 − 18
+1−5=26
+6
17 − 15
+5−3=24
+19
 16 − 16
+6−6=20
0
19 − 13
+8−2=22
+41
11 − 7
+4−0=14
+43
18.5 − 13.5
+7−2=23
+19
16.5 − 15.5
+5−4=23
−13
8Laser 1.7 64-bit 4CPU328510 − 42
+0−32=20
+7
12 − 20
+1−9=22
0
 14.5 − 17.5
+4−7=21
+30
13 − 19
+1−7=24
−11
17 − 15
+6−4=22
+21
16 − 16
+6−6=20
0
 16 − 14
+6−4=20
+8
8.5 − 7.5
+1−0=15
0
16.5 − 15.5
+5−4=23
−10
19 − 13
+7−1=24
+26
9Fizbo 2 64-bit 4CPU32767.5 − 46.5
+0−39=15
−47
13.5 − 18.5
+5−10=17
+31
 12.5 − 19.5
+3−10=19
+2
20.5 − 25.5
+6−11=29
+17
16 − 16
+6−6=20
+9
13 − 19
+2−8=22
−41
14 − 16
+4−6=20
−8
 10.5 − 7.5
+4−1=13
+39
21 − 17
+8−4=26
+19
21.5 − 16.5
+11−6=21
+27
10Schooner 2.2 64-bit 4CPU3270 6.5 − 11.5
+1−6=11
+1
 6.5 − 9.5
+1−4=11
+22
7.5 − 10.5
+1−4=13
+5
6 − 10
+0−4=12
−47
7 − 11
+0−4=14
−43
7.5 − 8.5
+0−1=15
0
7.5 − 10.5
+1−4=13
−39
 9 − 7
+3−1=12
+24
9.5 − 6.5
+5−2=9
+50
11Andscacs 0.95 64-bit 4CPU3267    12.5 − 19.5
+2−9=21
−3
14 − 18
+3−7=22
−11
13.5 − 18.5
+2−7=23
−19
15.5 − 16.5
+4−5=23
+10
17 − 21
+4−8=26
−19
7 − 9
+1−3=12
−24
 16.5 − 15.5
+6−5=21
+8
12Booot 6.3.1 64-bit 4CPU3264    13.5 − 24.5
+1−12=25
−19
15.5 − 16.5
+5−6=21
+13
15.5 − 16.5
+4−5=23
+13
13 − 19
+1−7=24
−26
16.5 − 21.5
+6−11=21
−27
6.5 − 9.5
+2−5=9
−50
15.5 − 16.5
+5−6=21
−8
 
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
#NameElo123456789101112
1Stockfish 11 64-bit 4CPU3497 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Ethereal 11.75 64-bit 4CPU33520.0 60.275.198.6100.0100.0100.0100.0100.0100.0100.0
3Komodo 10 64-bit 4CPU33470.039.8 63.996.1100.0100.0100.0100.0100.0100.0100.0
4Xiphos 0.6 64-bit 4CPU33410.024.936.1 91.9100.0100.0100.0100.0100.0100.0100.0
5Fire 7.1 64-bit 4CPU33230.01.43.98.1 99.899.9100.0100.0100.0100.0100.0
6RofChade 2.202 64-bit 4CPU32880.00.00.00.00.2 56.756.682.884.893.996.9
7Defenchess 2.2 64-bit 4CPU32850.00.00.00.00.143.3 49.477.481.291.695.4
8Laser 1.7 64-bit 4CPU32850.00.00.00.00.043.450.6 80.682.793.597.1
9Fizbo 2 64-bit 4CPU32760.00.00.00.00.017.222.619.4 65.180.990.2
10Schooner 2.2 64-bit 4CPU32700.00.00.00.00.015.218.817.334.9 59.466.5
11Andscacs 0.95 64-bit 4CPU32670.00.00.00.00.06.18.46.519.140.6 59.0
12Booot 6.3.1 64-bit 4CPU32640.00.00.00.00.03.14.62.99.833.541.0 
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

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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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Created in 2005-2013 by CCRL team
Last games added on February 8, 2020