CCRL 40/15
Downloads and Statistics
January 18, 2020
Testing summary:
Total: 1'114'202 games
played by 2'605 programs

White wins: 385'748 (34.6%)
Black wins: 286'303 (25.7%)
Draws: 442'151 (39.7%)
White score: 54.5%

Free 4-CPU engines

Comparing 306 engines!
82 best versions of selected engines played 10536 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 January 18, 2020 with Bayeselo based on 1'114'202 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 2019-10-09 64-bit 4CPU3492+28−2772.3%−139.853.9%408 
71.1%
 SugaR NN 1.1 64-bit 4CPU3483+20−2072.5%−148.449.4%814
92.2%
 Stockfish 10 64-bit 4CPU3465+16−1672.0%−146.152.0%1307
53.9%
 SugaR 1.6.1 64-bit 4CPU3463+25−2569.0%−118.357.4%479
67.6%
 Stockfish 270918 64-bit 4CPU3454+28−2777.9%−188.743.3%457
56.4%
 ShashChess 8.0 64-bit 4CPU3452+21−2068.1%−110.860.6%700
85.6%
 SugaR XPrO 1.5.3 64-bit 4CPU3434+24−2471.8%−144.151.3%544
54.7%
 Stockfish 9 64-bit 4CPU3432+15−1572.3%−153.050.5%1423
95.5%
 SugaR XPrO 1.4 64-bit 4CPU3411+20−2072.3%−149.751.8%840
55.6%
 asmFish 051117 64-bit 4CPU3409+20−1969.8%−129.655.7%819
75.5%
 SugaR XPrO 1.2 64-bit 4CPU3400+21−2070.4%−136.452.5%754
63.5%
 ShashChess Pro 1.0 64-bit 4CPU3393+33−3365.6%−94.361.7%256
77.0%
 Stockfish 8 64-bit 4CPU3379+14−1365.1%−96.762.1%1647
64.7%
 SugaR XPrO 1.3 64-bit 4CPU3374+23−2266.0%−103.357.4%598
92.7%
2Ethereal 11.75 64-bit 4CPU3349+24−2448.8%+6.765.4%486
54.9%
3Komodo 10 64-bit 4CPU3347+23−2276.6%−173.344.0%700
62.7%
4Xiphos 0.6 64-bit 4CPU3341+24−2444.8%+31.063.6%484
78.5%
 Ethereal 11.53 64-bit 4CPU3328+23−2252.3%−13.164.0%542
53.7%
 Stockfish 7 64-bit 4CPU3326+15−1567.0%−105.657.3%1304
62.7%
5Fire 7.1 64-bit 4CPU3323+13−1352.8%−18.660.8%1771
86.2%
 Xiphos 0.5 64-bit 4CPU3310+19−1943.9%+39.564.2%745
55.4%
 Komodo 9 64-bit 4CPU3308+20−1970.4%−124.052.7%804
71.6%
 Ethereal 11.00 64-bit 4CPU3300+19−1947.0%+17.863.2%778
48.7%
 Ethereal 11.25 64-bit 4CPU3300+21−2246.3%+24.265.5%588
74.0%
 Stockfish 6 64-bit 4CPU3291+14−1465.3%−94.057.3%1542
60.6%
 Fire 6.1 64-bit 4CPU3288+18−1848.5%+7.758.4%940
54.2%
6RofChade 2.202 64-bit 4CPU3287+21−2141.9%+49.060.9%652
55.1%
7Defenchess 2.2 64-bit 4CPU3285+21−2142.5%+48.060.2%664
49.1%
 Komodo 8 64-bit 4CPU3285+16−1669.8%−126.649.0%1298
51.9%
8Laser 1.7 64-bit 4CPU3284+18−1843.4%+41.962.4%882
77.7%
9Fizbo 2 64-bit 4CPU3276+13−1344.6%+32.955.5%1927
52.4%
 Ethereal 10.55 64-bit 4CPU3275+24−2549.8%−1.757.4%488
66.5%
 Stockfish 5 64-bit 4CPU3269+15−1567.9%−111.053.8%1326
59.9%
 Fire 5 64-bit 4CPU3266+18−1846.9%+17.662.5%867
52.0%
10Andscacs 0.95 64-bit 4CPU3265+19−1941.3%+53.558.4%832
53.9%
 Andscacs 0.94 64-bit 4CPU3264+18−1847.2%+17.754.2%907
51.8%
11Booot 6.3.1 64-bit 4CPU3263+15−1542.6%+46.756.8%1316
74.1%
 Fizbo 1.9 64-bit 4CPU3255+17−1745.7%+26.555.5%1004
53.2%
 Schooner 2.2 64-bit 4CPU3252+65−6734.4%+94.662.5%64
51.2%
 Xiphos 0.4 64-bit 4CPU3251+19−1943.8%+39.761.1%830
53.4%
 RofChade 2.1 64-bit 4CPU3250+25−2544.4%+37.260.0%452
72.7%
 Andscacs 0.921 64-bit 4CPU3241+16−1650.7%−7.047.5%1225
52.2%
 Andscacs 0.93 64-bit 4CPU3240+18−1842.9%+45.154.8%938
57.6%
12RubiChess 1.6 64-bit 4CPU3236+29−2962.8%−77.050.6%352
54.9%
 Stockfish DD 64-bit 4CPU3234+17−1763.0%−78.256.1%1032
63.4%
 Andscacs 0.91 64-bit 4CPU3229+22−2242.5%+48.059.2%596
53.9%
 Komodo 7a 64-bit 4CPU3228+18−1860.7%−65.259.0%897
53.3%
13Arasan 21.4 64-bit 4CPU3226+28−2847.8%+10.256.0%368
57.8%
 Andscacs 0.89 64-bit 4CPU3223+21−2145.9%+28.455.0%662
63.1%
 Booot 6.2 64-bit 4CPU3219+14−1442.6%+47.459.2%1492
46.9%
 Komodo TCEC 64-bit 4CPU3219+18−1861.7%−73.555.1%925
55.2%
 Andscacs 0.88 64-bit 4CPU3217+28−2844.1%+37.255.5%362
51.2%
 Laser 1.6 64-bit 4CPU3217+16−1742.8%+48.055.9%1099
51.9%
14Schooner 2.1 64-bit 4CPU3216+23−2344.6%+33.855.5%550
63.3%
 Komodo 6 64-bit 4CPU3211+16−1758.6%−52.756.7%1065
60.3%
 Andscacs 0.90 64-bit 4CPU3207+24−2450.3%+2.555.1%515
53.4%
 Stockfish 4 64-bit 4CPU3206+17−1760.9%−64.658.9%1054
62.9%
 Schooner 2.0.34 64-bit 4CPU3201+20−2049.3%+3.657.9%734
53.4%
 Andscacs 0.872 64-bit 4CPU3200+24−2451.3%−5.358.8%476
49.0%
 Komodo 5.1 64-bit 4CPU3200+20−2061.8%−71.954.8%715
55.4%
 Fire 4 64-bit 4CPU3198+12−1346.5%+22.459.7%1885
52.5%
 Arasan 21.3 64-bit 4CPU3197+31−3145.6%+33.256.1%296
65.0%
 Ethereal 10.00 64-bit 4CPU3190+20−2053.4%−23.250.8%788
68.2%
15Houdini 1.5a 64-bit 4CPU3183+18−1862.2%−79.945.0%991
60.1%
16‑17Gull 3 64-bit 4CPU3181+10−941.9%+51.954.4%3673
49.4%
16‑17NirvanaChess 2.4 64-bit 4CPU3181+13−1341.1%+58.954.4%1770
53.9%
 Fizbo 1.8 64-bit 4CPU3180+21−2143.6%+42.549.7%708
52.7%
 Gull 2.8b 64-bit 4CPU3179+19−1949.1%+3.251.8%797
48.8%
18Vajolet2 2.7 64-bit 4CPU3179+29−2956.8%−39.655.1%345
50.1%
 Xiphos 0.3 64-bit 4CPU3179+21−2149.2%+3.654.2%660
57.2%
 RofChade 2.0 64-bit 4CPU3176+21−2149.7%+1.657.7%620
56.8%
19Equinox 3.20 64-bit 4CPU3174+11−1141.7%+53.759.0%2591
51.8%
20ChessBrainVB 3.72 4CPU3173+31−3145.2%+29.551.3%302
52.1%
 Arasan 21.2 64-bit 4CPU3172+30−3052.2%−12.060.6%302
58.1%
 Arasan 21.1 64-bit 4CPU3168+27−2751.2%−7.659.5%383
51.3%
 Booot 6.1 64-bit 4CPU3167+20−2041.6%+52.560.6%708
53.1%
 Stockfish 3 64-bit 4CPU3166+21−2156.0%−35.157.8%663
55.4%
 RubiChess 1.5 64-bit 4CPU3164+29−2952.4%−14.654.3%348
54.4%
 Equinox 3.30 64-bit 4CPU3162+18−1843.9%+38.558.9%896
60.0%
21Critter 1.6a 64-bit 4CPU3159+8−845.3%+32.154.6%5429
70.4%
22Hannibal 1.7 64-bit 4CPU3155+14−1441.9%+50.255.0%1537
60.0%
23Nemorino 5.00 64-bit 4CPU3152+19−1948.8%+5.752.7%860
48.3%
 NirvanaChess 2.3 64-bit 4CPU3152+18−1841.4%+55.956.8%869
56.8%
 Fire 3.0 64-bit 4CPU3150+17−1749.5%+2.858.2%948
53.6%
24Bouquet 1.8 64-bit 4CPU3149+11−1143.6%+41.556.7%2427
59.6%
 Critter 1.4 64-bit 4CPU3147+19−1960.6%−64.953.7%857
48.6%
 Stockfish 2.2.2 64-bit 4CPU3147+16−1659.2%−56.553.4%1141
54.3%
 Critter 1.2 64-bit 4CPU3146+20−2058.9%−55.552.9%762
52.1%
 Andscacs 0.86 64-bit 4CPU3145+21−2141.5%+54.654.9%703
52.8%
 Laser 1.5 64-bit 4CPU3144+20−2049.4%+7.854.5%723
50.8%
25Texel 1.07 64-bit 4CPU3143+14−1449.8%+4.049.3%1604
53.6%
 Gull 2.3 64-bit 4CPU3142+17−1747.4%+15.259.3%982
52.1%
26Pedone 1.8 64-bit 4CPU3142+28−2846.7%+18.357.4%350
47.9%
 Stockfish 2.3.1 64-bit 4CPU3142+19−1955.4%−32.852.5%846
60.3%
 NirvanaChess 2.2 64-bit 4CPU3139+18−1740.7%+60.057.5%961
50.8%
27Protector 1.9.0 64-bit 4CPU3139+15−1546.3%+25.454.1%1313
55.6%
28Alfil 15.7 64-bit 4CPU3137+17−1742.9%+48.456.3%1006
50.8%
 Vajolet2 2.6.1 64-bit 4CPU3137+21−2150.8%−4.860.3%605
57.4%
 Andscacs 0.85 64-bit 4CPU3134+25−2543.9%+42.253.1%467
54.0%
 Bouquet 1.5 64-bit 4CPU3132+23−2346.4%+20.263.6%500
50.1%
 Sting SF 4.8.4 64-bit 4CPU3132+29−2953.3%−21.062.4%330
49.1%
 Sting SF 6 64-bit 4CPU3132+28−2850.8%−6.261.0%354
50.8%
 Texel 1.06 64-bit 4CPU3132+20−2046.1%+25.353.6%739
50.4%
 Wasp 3.60 64-bit 4CPU3132+58−5943.6%+30.964.1%78
51.3%
 Pedone 1.9 64-bit 4CPU3131+30−3049.5%+0.156.6%311
55.1%
 DeepSaros 4.1.6 64-bit 4CPU3128+26−2645.2%+28.457.5%419
51.7%
 Stockfish 2.0.1 64-bit 4CPU3127+24−2456.4%−40.748.6%514
54.6%
 Gull 3.1 64-bit 4CPU3125+30−3045.4%+33.045.1%359
50.3%
 Protector 1.8.0 64-bit 4CPU3125+27−2750.4%−2.154.7%386
50.1%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+4.651.6%428
51.1%
29iCE 4.0 64-bit 4CPU3124+30−3049.4%+0.949.7%330
52.2%
30BlackMamba 2.0 64-bit 4CPU3123+15−1544.2%+37.754.3%1408
56.4%
 Arasan 20.4.1 64-bit 4CPU3120+26−2651.7%−10.250.2%452
50.2%
 Fizbo 1.7 64-bit 4CPU3120+27−2756.1%−38.252.2%410
54.8%
 Elektro 1.2 64-bit 4CPU3118+23−2346.1%+27.355.5%546
51.2%
 Sting SF 5 64-bit 4CPU3118+25−2548.1%+12.354.0%465
59.0%
 Stockfish 1.9.1 64-bit 4CPU3114+23−2261.1%−75.546.8%615
51.2%
 IvanHoe 9.46h 64-bit 4CPU3113+14−1453.2%−19.159.5%1542
50.5%
 Stockfish 2.1.1 64-bit 4CPU3113+27−2754.7%−29.048.3%406
53.5%
 RobboLito 0.21Q 64-bit 4CPU3112+22−2250.9%−6.662.7%569
51.7%
31Senpai 2.0 64-bit 4CPU3111+20−2051.6%−12.248.6%780
51.5%
 Hannibal 1.5 64-bit 4CPU3110+19−1953.2%−20.257.1%819
51.2%
 Sting SF 9 64-bit 4CPU3110+29−2947.9%+11.646.5%357
51.9%
 Sting SF 3 64-bit 4CPU3109+21−2147.7%+11.658.5%644
51.2%
 Bouquet 1.6 64-bit 4CPU3108+21−2150.0%+0.160.7%641
51.4%
 Sting SF 2 64-bit 4CPU3108+27−2748.8%+8.158.1%375
50.8%
 Stockfish 1.8 64-bit 4CPU3107+19−1962.0%−79.949.4%864
53.0%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−27.048.7%378
54.0%
 Andscacs 0.83 64-bit 4CPU3104+29−2946.6%+19.151.2%338
49.8%
 Stockfish 1.7.1 64-bit 4CPU3104+19−1860.4%−68.052.6%882
53.0%
 Xiphos 0.2.2 64-bit 4CPU3103+26−2647.3%+13.953.6%414
52.9%
32Wasp 3.50 64-bit 4CPU3102+19−1950.4%−5.053.6%785
59.3%
 Gull 2.2 64-bit 4CPU3098+25−2544.5%+30.954.8%469
50.7%
 Vajolet2 2.5 64-bit 4CPU3097+24−2451.5%−9.254.0%493
54.5%
 Nemorino 4.00 64-bit 4CPU3096+22−2250.0%+1.052.9%624
51.2%
33Naum 4.6 64-bit 4CPU3095+14−1448.1%+11.954.3%1544
49.3%
 NirvanaChess 2.1c 64-bit 4CPU3095+23−2345.2%+31.647.7%608
51.6%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+48.748.9%562
61.0%
 Arasan 20.3 64-bit 4CPU3089+32−3252.5%−20.147.4%302
50.3%
 Laser 1.4 64-bit 4CPU3089+19−1949.6%+0.345.7%843
52.1%
 Critter 1.01 64-bit 4CPU3088+28−2846.1%+22.456.1%360
51.4%
 Pedone 1.7 64-bit 4CPU3087+19−1948.2%+11.656.4%801
58.4%
 Texel 1.05 64-bit 4CPU3085+17−1747.3%+18.251.4%1016
55.8%
 Andscacs 0.82 64-bit 4CPU3082+29−2950.6%−2.955.2%330
56.9%
 Critter 0.90 64-bit 4CPU3078+31−3147.6%+13.646.5%316
52.3%
 Andscacs 0.81 64-bit 4CPU3077+31−3248.7%+5.749.3%300
49.3%
 Hannibal 1.4b 64-bit 4CPU3077+15−1542.3%+47.751.3%1332
57.1%
 Protector 1.7.0 64-bit 4CPU3075+19−1944.1%+36.850.6%834
51.0%
 Demolito 2019-04-27 64-bit 4CPU3074+66−6650.0%−0.138.9%72
52.1%
 Nemorino 3.0 64-bit 4CPU3072+27−2747.9%+13.246.1%427
52.8%
 Protector 1.6.0 64-bit 4CPU3071+22−2143.2%+44.350.2%656
50.2%
34Rodent III 0.238 64-bit 4CPU3071+20−2047.2%+14.750.0%742
55.0%
 Rodent III 0.276 64-bit 4CPU3068+30−3050.2%+0.958.0%312
56.2%
 Defenchess 1.1f 64-bit 4CPU3066+19−1851.7%−12.345.3%916
48.8%
 RubiChess 1.3 64-bit 4CPU3066+22−2252.8%−17.944.2%642
61.7%
 Wasp 3.0 64-bit 4CPU3061+25−2551.1%−8.555.0%462
56.6%
 Texel 1.04 64-bit 4CPU3058+21−2143.1%+43.047.8%722
52.5%
35Demolito 2018-10-29 64-bit 4CPU3057+32−3249.0%+3.650.7%288
50.8%
 Alfil 15.8 64-bit 4CPU3056+22−2253.9%−23.847.9%631
50.8%
 NirvanaChess 2.0a 64-bit 4CPU3056+30−3044.7%+36.050.1%337
50.5%
 Protector 1.5.0 64-bit 4CPU3056+18−1842.5%+47.447.4%952
57.3%
36Amoeba 3.0 64-bit 4CPU3053+26−2654.8%−32.544.8%466
49.2%
 Pedone 1.6 64-bit 4CPU3053+23−2349.5%+3.157.7%508
54.5%
 Ethereal 9.00 64-bit 4CPU3051+23−2346.8%+19.045.1%570
69.6%
 Vajolet2 2.4 64-bit 4CPU3043+19−1947.2%+18.645.7%878
53.4%
 Vajolet2 2.2 64-bit 4CPU3042+27−2747.0%+15.048.7%423
54.4%
 Stockfish 1.6.3 64-bit 4CPU3040+22−2258.2%−54.644.8%631
50.1%
 Wasp 2.6 64-bit 4CPU3040+18−1848.9%+7.847.2%968
51.0%
 Arasan 19.2 64-bit 4CPU3039+31−3151.7%−11.055.0%289
50.9%
 Gull R375 64-bit 4CPU3039+22−2243.4%+36.957.4%605
60.5%
 Critter 0.80 64-bit 4CPU3034+31−3050.9%−9.048.3%321
50.8%
 Hannibal 1.3 64-bit 4CPU3033+22−2243.0%+43.148.6%642
51.5%
 Pedone 1.5 64-bit 4CPU3033+31−3149.5%+2.851.6%304
51.3%
 Wasp 2.01 64-bit 4CPU3032+30−3055.3%−32.554.5%321
57.7%
 Vajolet2 2.3 64-bit 4CPU3027+31−3145.2%+25.953.5%303
51.9%
 Arasan 20.0 64-bit 4CPU3026+31−3148.0%+13.553.1%303
51.5%
37Bobcat 8.0 64-bit 4CPU3026+21−2148.3%+10.853.5%636
55.7%
 Senpai 1.0 64-bit 4CPU3024+16−1646.2%+20.553.5%1095
50.3%
 Andscacs 0.80 64-bit 4CPU3023+31−3150.2%−0.846.7%317
54.1%
38Pirarucu 2.7.4 64-bit 4CPU3021+21−2154.9%−34.847.0%681
50.0%
 Pirarucu 2.9.5 64-bit 4CPU3021+34−3450.0%−1.852.6%249
55.8%
39Winter 0.6 64-bit 4CPU3018+32−3253.0%−27.835.6%329
51.3%
40Rybka 2.3.2a 64-bit 4CPU3017+13−1362.8%−85.643.9%1928
54.4%
41Spike 1.4 Leiden 4CPU3016+11−1145.2%+29.847.7%2862
52.4%
 Arasan 19.0.1 64-bit 4CPU3015+32−3252.3%−19.041.6%298
52.9%
42‑43Crafty 25.2 64-bit 4CPU3014+16−1648.5%+9.342.5%1279
50.4%
42‑43chess22k 1.10 64-bit 4CPU3014+22−2246.7%+16.343.7%680
53.7%
 Nemorino 2.00 64-bit 4CPU3012+30−3047.0%+16.459.6%302
55.2%
44Cheng 4.39 64-bit 4CPU3010+15−1550.0%−0.149.1%1288
48.7%
 Laser 1.3 64-bit 4CPU3010+30−3047.2%+15.955.8%321
50.2%
 Texel 1.03 64-bit 4CPU3010+31−3150.3%−1.147.0%313
66.4%
 Pedone 1.4.1 64-bit 4CPU3001+31−3148.5%+7.955.7%305
53.3%
 Vajolet2 2.1 64-bit 4CPU2999+25−2550.9%−3.648.5%462
53.0%
 Rodent III 0.210 64-bit 4CPU2998+28−2845.1%+32.642.5%402
58.9%
 Fizbo 1.5 64-bit 4CPU2993+27−2752.6%−16.248.5%410
66.7%
45Scorpio 2.8 64-bit 4CPU2985+25−2549.9%−1.147.2%472
54.9%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+48.842.9%912
55.2%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+22.942.4%531
51.5%
 Bobcat 7.6 64-bit 4CPU2980+32−3250.2%−1.041.7%300
60.0%
 Rybka 2.2 64-bit 4CPU2975+20−1963.6%−92.941.1%859
53.0%
 Arasan 18.3 64-bit 4CPU2973+30−3046.6%+21.046.8%327
54.3%
46EXchess 7.97b 64-bit 4CPU2972+18−1847.4%+18.045.9%1017
50.8%
 Arasan 18.2 64-bit 4CPU2971+28−2851.9%−14.750.3%388
54.9%
47Spark 1.0 64-bit 4CPU2969+13−1345.0%+32.346.6%1787
49.7%
 Stockfish 1.5.1 64-bit 4CPU2969+25−2553.7%−22.847.7%495
62.1%
 Demolito 2017-08-26 64-bit 4CPU2964+21−2140.2%+63.740.8%748
52.2%
 Winter 0.5 64-bit 4CPU2963+26−2650.4%−5.338.3%470
52.3%
 Protector 1.3.6 64-bit 4CPU2962+32−3246.6%+18.444.3%307
57.7%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+29.248.6%356
49.3%
48Toga II 4.0 64-bit 4CPU2958+19−1941.4%+56.940.4%958
55.4%
 Fizbo 1.31 64-bit 4CPU2955+30−3051.1%−6.141.9%358
60.9%
 Crafty 25.0 64-bit 4CPU2950+25−2548.1%+12.647.9%468
55.0%
 Stockfish 1.4 64-bit 4CPU2948+17−1754.2%−28.942.2%1131
54.9%
 Scorpio 2.7.9 64-bit 4CPU2946+22−2246.7%+21.040.5%659
60.5%
49Gaviota 1.0 64-bit 4CPU2942+16−1647.3%+16.645.4%1256
54.1%
50Tucano 7.07 64-bit 4CPU2940+34−3453.0%−18.144.6%271
51.9%
 EXchess 7.51b 64-bit 4CPU2939+33−3350.7%−2.345.7%276
50.7%
51The Baron 3.44 64-bit 4CPU2939+27−2747.2%+17.944.9%412
57.8%
 Arasan 17.5 64-bit 4CPU2935+27−2748.4%+9.845.1%406
50.3%
 Bobcat 7.1 64-bit 4CPU2935+32−3249.1%+4.846.6%294
49.8%
52Marvin 3.3.2 64-bit 4CPU2935+37−3845.4%+26.744.0%218
53.9%
 Spark 0.4 64-bit 4CPU2933+21−2143.0%+48.145.2%703
50.3%
 EXchess 7.71b 64-bit 4CPU2932+28−2853.3%−22.443.2%403
50.8%
 Fizbo 1.4 64-bit 4CPU2932+28−2845.9%+25.144.7%394
51.5%
 Ethereal 8.62 64-bit 4CPU2931+22−2244.2%+35.949.7%600
58.5%
 Spark 0.3 64-bit 4CPU2928+23−2346.5%+20.149.7%572
52.9%
 Arasan 18.0 64-bit 4CPU2926+29−2947.2%+16.041.5%378
50.2%
53Thinker 5.4d Inert 64-bit 4CPU2926+23−2346.0%+24.449.7%587
58.5%
 Thinker 5.4c Inert 64-bit 4CPU2923+15−1548.1%+13.239.4%1502
53.8%
 Marvin 3.2.0 64-bit 4CPU2922+21−2153.7%−26.543.0%698
57.3%
 Toga II 3.0 4CPU2919+22−2245.6%+27.149.0%592
60.4%
54DisasterArea 1.65 64-bit 4CPU2915+21−2144.2%+35.946.1%709
55.8%
55Gogobello 2.0 64-bit 4CPU2912+25−2550.8%−6.539.1%522
53.3%
 Crafty 23.8 64-bit 4CPU2911+33−3447.6%+16.047.2%267
54.6%
 Asymptote 0.6 64-bit 4CPU2905+84−8351.3%−13.052.5%40
50.5%
 Thinker 5.4a Inert 64-bit 4CPU2904+23−2347.3%+20.445.4%560
51.0%
 Toga II 1.4.1SE 4CPU2904+13−1348.5%+10.841.6%2041
52.5%
 The Baron 3.41 64-bit 4CPU2903+20−2039.1%+71.143.8%800
63.0%
 Cheng4 0.36c 64-bit 4CPU2897+30−3048.8%+6.346.6%326
51.4%
56‑58Bright 0.4a 4CPU2896+15−1547.4%+17.441.1%1495
52.4%
56‑58Glaurung 2.2 64-bit 4CPU2896+16−1647.0%+18.940.7%1259
49.3%
56‑58Tornado 6.0 64-bit 4CPU2896+26−2645.5%+27.643.3%469
51.8%
 Tornado 8.0 64-bit 4CPU2895+20−2045.2%+30.839.0%881
54.2%
 Tornado 7.0 64-bit 4CPU2893+25−2545.3%+31.339.2%502
56.4%
 Bright 0.5c 4CPU2891+23−2347.2%+18.942.9%616
56.8%
59Octochess r5506 64-bit 4CPU2888+21−2144.5%+35.746.7%715
55.9%
60MinkoChess 1.3 64-bit 4CPU2886+21−2146.0%+24.243.7%725
50.7%
 Tornado 4.88 64-bit 4CPU2886+26−2646.0%+23.941.5%479
52.1%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−12.345.8%996
56.3%
 Pedone 1.3 64-bit 4CPU2882+29−2946.6%+19.951.0%355
51.2%
 Fruit Reloaded 3.2.1 64-bit 4CPU2881+18−1838.8%+74.839.1%1024
56.6%
 Crafty 24.1 64-bit 4CPU2878+31−3243.5%+41.539.1%322
56.4%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.5%+15.543.9%446
64.9%
 Glaurung 2.1 64-bit 4CPU2868+19−1942.8%+51.341.3%946
54.0%
 Bobcat 6.4b 64-bit 4CPU2867+27−2748.3%+11.246.5%415
51.7%
 The Baron 3.29 64-bit 4CPU2866+25−2546.3%+22.643.1%489
51.7%
 EXchess 7.18b 64-bit 4CPU2865+33−3347.3%+16.738.4%292
57.9%
 Scorpio 2.7.5 64-bit 4CPU2860+33−3345.7%+24.950.0%266
51.8%
 Gaviota 0.86 64-bit 4CPU2859+24−2453.4%−26.132.6%617
52.7%
 Arasan 16.3 64-bit 4CPU2858+34−3449.1%+4.540.2%276
49.2%
 Crafty 23.4 64-bit 4CPU2858+34−3446.9%+19.735.7%272
54.6%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+44.341.3%310
51.5%
61Monolith 1.0 64-bit 4CPU2855+22−2148.6%+8.143.0%693
53.7%
62Counter 3.2 64-bit 4CPU2853+32−3250.7%−4.840.2%301
57.0%
63Igel 1.9.0 64-bit 4CPU2849+31−3241.0%+59.239.5%324
50.4%
 Topple 0.7.0 64-bit 4CPU2849+91−9341.3%+57.027.5%40
53.0%
64Cheese 2.0 64-bit 4CPU2845+30−3046.2%+23.638.6%365
53.0%
65Shield 2.1 64-bit 4CPU2843+24−2448.7%+9.936.0%594
62.8%
66BugChess2 1.9 64-bit 4CPU2838+21−2143.4%+44.438.2%738
52.0%
 Crafty 23.3 64-bit 4CPU2837+31−3241.5%+55.238.2%325
49.0%
67Loop 13.6 (Loop 2007) 64-bit 4CPU2837+19−1948.3%+12.642.8%894
72.0%
 Bright 0.3a 4CPU2830+18−1842.4%+50.741.8%988
53.5%
 Glaurung 2.0.1 64-bit 4CPU2829+17−1743.8%+38.243.5%1100
64.0%
 Octochess r5190 64-bit 4CPU2823+24−2445.9%+24.044.5%555
57.9%
 Pedone 1.1 64-bit 4CPU2819+31−3153.7%−31.739.5%347
51.3%
 Arminius 2018-12-23 64-bit 4CPU2818+44−4544.2%+40.936.4%165
53.8%
68Jonny 4.00 4CPU2815+25−2543.6%+42.835.0%540
72.3%
 Bright 0.2c 4CPU2805+21−2143.9%+40.543.2%724
58.4%
 Pedone 1.2 64-bit 4CPU2801+36−3648.4%+8.942.3%246
64.4%
 Crafty 23.1 64-bit 4CPU2791+36−3743.8%+42.936.9%241
52.5%
 Laser 1.0 64-bit 4CPU2789+37−3836.3%+90.139.2%227
58.6%
 Bagatur 1.7a 64-bit 4CPU2774+131−13445.0%+31.220.0%20
55.3%
 Glaurung 1.2.1 64-bit 4CPU2765+19−1940.2%+64.338.1%967
68.3%
 Crafty 23.0 64-bit 4CPU2759+18−1839.0%+77.434.1%1042
68.7%
69Fridolin 3.10 64-bit 4CPU2749+33−3349.5%−0.331.5%308
55.7%
 Alfil 13.1 64-bit 4CPU2746+28−2841.8%+52.834.1%440
76.9%
 Scorpio 2.0 32-bit 4CPU2731+24−2433.4%+115.536.7%607
63.3%
70Nebula 2.0 64-bit 4CPU2726+20−2045.1%+35.534.1%866
65.5%
 Scorpio 2.1 64-bit 4CPU2719+27−2734.4%+108.831.6%490
81.0%
 Igel 1.4.1 64-bit 4CPU2701+28−2850.7%−7.026.3%448
77.0%
71Hamsters 0.7.1 4CPU2685+32−3252.4%−14.136.2%318
53.8%
72RedQueen 1.1.98 64-bit 4CPU2683+27−2739.4%+80.628.5%494
65.7%
73ECE X3 64-bit 4CPU2676+23−2341.5%+68.323.4%709
56.5%
74Pharaon 3.5.1 4CPU2673+26−2643.6%+41.729.7%518
62.5%
75Jellyfish 1.1 64-bit 4CPU2667+29−2953.3%−25.432.3%403
60.1%
 RedQueen 1.1.97 64-bit 4CPU2662+22−2245.7%+26.833.3%726
71.8%
76Ghost 3.1 64-bit 4CPU2651+30−3053.9%−25.528.5%393
52.9%
77Arminius 2015-08-06 64-bit 4CPU2650+33−3344.2%+37.736.1%302
53.3%
 Gaviota 0.83 64-bit 4CPU2648+25−2547.3%+20.427.9%566
99.6%
 Fridolin 2.00 64-bit 4CPU2588+34−3441.9%+57.531.3%297
93.2%
78Delphil 3.2 64-bit 4CPU2554+31−3138.2%+85.630.5%374
53.0%
79Jazz 840 64-bit 4CPU2553+20−2057.8%−64.225.3%1000
91.0%
80Nemeton 1.8 4CPU2529+27−2749.9%+2.127.2%496
86.6%
81Jumbo 0.6.66 64-bit 4CPU2508+28−2850.0%−0.833.0%433
88.1%
82Myrddin 0.87 64-bit 4CPU2482+35−3538.9%+81.128.4%296
85.9%
 Invictus r228 64-bit 4CPU2339+242−29528.6%+167.30.0%7
 

Results matrix

Free 4-CPU engines (best versions only), top 12
#NameElo123456789101112
1Stockfish 2019-10-09 64-bit 4CPU3492 20 − 10
+10−0=20
−51
 23 − 7
+16−0=14
+14
25 − 7
+18−0=14
+10
25 − 7
+18−0=14
−24
27.5 − 4.5
+23−0=9
+58
24.5 − 5.5
+19−0=11
+5
  25.5 − 4.5
+21−0=9
+25
 
2Ethereal 11.75 64-bit 4CPU334910 − 20
+0−10=20
+51
  17 − 15
+4−2=26
+6
16.5 − 15.5
+5−4=23
−18
18 − 14
+6−2=24
−27
18.5 − 13.5
+6−1=25
−23
20 − 12
+9−1=22
+2
18.5 − 13.5
+10−5=17
−28
   
3Komodo 10 64-bit 4CPU3347            
4Xiphos 0.6 64-bit 4CPU33417 − 23
+0−16=14
−14
15 − 17
+2−4=26
−6
  16 − 16
+4−4=24
−16
19 − 13
+10−4=18
−2
20.5 − 11.5
+9−0=23
+19
17.5 − 14.5
+7−4=21
−31
19.5 − 12.5
+10−3=19
−2
   
5Fire 7.1 64-bit 4CPU33237 − 25
+0−18=14
−10
15.5 − 16.5
+4−5=23
+18
 16 − 16
+4−4=24
+16
 19 − 13
+10−4=18
+18
18 − 14
+5−1=26
−6
19 − 13
+7−1=24
+10
25.5 − 20.5
+11−6=29
−17
19.5 − 12.5
+9−2=21
+1
24.5 − 13.5
+12−1=25
+18
 
6RofChade 2.202 64-bit 4CPU32877 − 25
+0−18=14
+24
14 − 18
+2−6=24
+27
 13 − 19
+4−10=18
+2
13 − 19
+4−10=18
−18
 15 − 17
+3−5=24
−18
15 − 17
+4−6=22
−21
16 − 16
+6−6=20
−8
18 − 14
+7−3=22
+10
16.5 − 15.5
+6−5=21
−13
 
7Defenchess 2.2 64-bit 4CPU32854.5 − 27.5
+0−23=9
−58
13.5 − 18.5
+1−6=25
+23
 11.5 − 20.5
+0−9=23
−19
14 − 18
+1−5=26
+6
17 − 15
+5−3=24
+18
 16 − 16
+6−6=20
−1
19 − 13
+8−2=22
+41
18.5 − 13.5
+7−2=23
+17
16.5 − 15.5
+5−4=23
−14
 
8Laser 1.7 64-bit 4CPU32845.5 − 24.5
+0−19=11
−5
12 − 20
+1−9=22
−2
 14.5 − 17.5
+4−7=21
+31
13 − 19
+1−7=24
−10
17 − 15
+6−4=22
+21
16 − 16
+6−6=20
+1
 16 − 14
+6−4=20
+9
16.5 − 15.5
+5−4=23
−11
19 − 13
+7−1=24
+26
 
9Fizbo 2 64-bit 4CPU3276 13.5 − 18.5
+5−10=17
+28
 12.5 − 19.5
+3−10=19
+2
20.5 − 25.5
+6−11=29
+17
16 − 16
+6−6=20
+8
13 − 19
+2−8=22
−41
14 − 16
+4−6=20
−9
 21 − 17
+8−4=26
+17
21.5 − 16.5
+11−6=21
+26
 
10Andscacs 0.95 64-bit 4CPU3265    12.5 − 19.5
+2−9=21
−1
14 − 18
+3−7=22
−10
13.5 − 18.5
+2−7=23
−17
15.5 − 16.5
+4−5=23
+11
17 − 21
+4−8=26
−17
 16.5 − 15.5
+6−5=21
+9
 
11Booot 6.3.1 64-bit 4CPU32634.5 − 25.5
+0−21=9
−25
   13.5 − 24.5
+1−12=25
−18
15.5 − 16.5
+5−6=21
+13
15.5 − 16.5
+4−5=23
+14
13 − 19
+1−7=24
−26
16.5 − 21.5
+6−11=21
−26
15.5 − 16.5
+5−6=21
−9
  
12RubiChess 1.6 64-bit 4CPU3236            
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 2019-10-09 64-bit 4CPU3492 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Ethereal 11.75 64-bit 4CPU33490.0 54.968.397.2100.0100.0100.0100.0100.0100.0100.0
3Komodo 10 64-bit 4CPU33470.045.1 62.796.0100.0100.0100.0100.0100.0100.0100.0
4Xiphos 0.6 64-bit 4CPU33410.031.737.3 90.8100.0100.0100.0100.0100.0100.0100.0
5Fire 7.1 64-bit 4CPU33230.02.84.09.2 99.899.9100.0100.0100.0100.0100.0
6RofChade 2.202 64-bit 4CPU32870.00.00.00.00.2 55.156.280.394.096.599.6
7Defenchess 2.2 64-bit 4CPU32850.00.00.00.00.144.9 50.876.192.495.499.5
8Laser 1.7 64-bit 4CPU32840.00.00.00.00.043.849.2 77.793.796.699.6
9Fizbo 2 64-bit 4CPU32760.00.00.00.00.019.723.922.3 83.890.999.2
10Andscacs 0.95 64-bit 4CPU32650.00.00.00.00.06.07.66.316.2 56.294.1
11Booot 6.3.1 64-bit 4CPU32630.00.00.00.00.03.54.63.49.143.8 93.9
12RubiChess 1.6 64-bit 4CPU32360.00.00.00.00.00.40.50.40.85.96.1 
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:
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Created in 2005-2013 by CCRL team
Last games added on January 18, 2020