CCRL 40/15
Downloads and Statistics
March 28, 2020
Testing summary:
Total: 1'132'680 games
played by 2'634 programs

White wins: 391'782 (34.6%)
Black wins: 290'390 (25.6%)
Draws: 450'508 (39.8%)
White score: 54.5%

Free 4-CPU engines

Comparing 313 engines!
83 best versions of selected engines played 10794 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 March 28, 2020 with Bayeselo based on 1'132'680 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 4CPU3496+22−2272.5%−143.751.2%650 
54.6%
 Stockfish 2019-10-09 64-bit 4CPU3494+28−2772.9%−145.152.8%422
75.6%
 SugaR NN 1.1 64-bit 4CPU3482+19−1972.2%−145.250.1%870
92.2%
 Stockfish 10 64-bit 4CPU3464+16−1672.0%−145.352.0%1307
53.2%
 SugaR 1.6.1 64-bit 4CPU3463+25−2569.0%−118.357.4%479
68.2%
 Stockfish 270918 64-bit 4CPU3454+28−2777.9%−189.043.3%457
52.4%
 ShashChess 8.0 64-bit 4CPU3453+19−1966.4%−100.462.9%806
88.7%
 SugaR XPrO 1.5.3 64-bit 4CPU3434+24−2471.8%−144.351.3%544
54.9%
 Stockfish 9 64-bit 4CPU3432+15−1572.3%−153.250.5%1423
95.5%
 SugaR XPrO 1.4 64-bit 4CPU3411+20−2072.3%−150.051.8%840
55.7%
 asmFish 051117 64-bit 4CPU3409+20−1969.8%−129.955.7%819
75.3%
 SugaR XPrO 1.2 64-bit 4CPU3400+21−2070.4%−136.552.5%754
63.3%
 ShashChess Pro 1.0 64-bit 4CPU3393+33−3365.6%−94.461.7%256
77.2%
 Stockfish 8 64-bit 4CPU3379+14−1365.1%−96.962.1%1647
64.8%
 SugaR XPrO 1.3 64-bit 4CPU3374+23−2266.0%−103.457.4%598
92.0%
2Ethereal 11.75 64-bit 4CPU3351+21−2147.3%+14.865.0%614
55.9%
 Ethereal 12.00 64-bit 4CPU3347+43−4348.6%+10.672.9%140
50.4%
3Komodo 10 64-bit 4CPU3347+23−2276.6%−172.944.0%700
66.9%
4Xiphos 0.6 64-bit 4CPU3340+21−2143.8%+37.664.1%624
78.5%
 Ethereal 11.53 64-bit 4CPU3327+23−2252.3%−12.864.0%542
51.6%
 Stockfish 7 64-bit 4CPU3327+15−1567.0%−106.457.3%1304
65.3%
5Fire 7.1 64-bit 4CPU3322+12−1251.6%−10.660.8%1911
86.0%
 Xiphos 0.5 64-bit 4CPU3310+19−1943.9%+39.264.2%745
54.3%
 Komodo 9 64-bit 4CPU3308+20−2070.4%−123.452.7%804
72.7%
 Ethereal 11.00 64-bit 4CPU3300+19−1947.0%+17.663.2%778
47.9%
 Ethereal 11.25 64-bit 4CPU3300+21−2146.3%+24.365.5%588
73.6%
 Stockfish 6 64-bit 4CPU3292+14−1465.3%−94.857.3%1542
62.4%
 Fire 6.1 64-bit 4CPU3288+18−1848.5%+7.658.4%940
57.7%
 Komodo 8 64-bit 4CPU3285+16−1669.8%−126.049.0%1298
51.2%
6Laser 1.7 64-bit 4CPU3285+16−1643.2%+43.361.3%1059
54.2%
7RofChade 2.202 64-bit 4CPU3284+19−1940.6%+58.859.5%786
51.6%
8Defenchess 2.2 64-bit 4CPU3283+19−1941.1%+58.058.6%814
69.5%
 Ethereal 10.55 64-bit 4CPU3275+25−2549.8%−1.957.4%488
49.2%
9Fizbo 2 64-bit 4CPU3275+12−1243.6%+40.254.9%2047
70.2%
 Stockfish 5 64-bit 4CPU3270+15−1567.7%−109.754.0%1346
55.7%
10Schooner 2.2 64-bit 4CPU3267+26−2645.6%+28.560.7%420
52.8%
11Andscacs 0.95 64-bit 4CPU3266+18−1842.3%+48.159.0%882
52.6%
 Fire 5 64-bit 4CPU3265+18−1846.9%+18.562.5%867
56.3%
 Andscacs 0.94 64-bit 4CPU3263+18−1847.2%+18.554.2%907
51.1%
12Booot 6.3.1 64-bit 4CPU3263+15−1543.0%+44.157.4%1366
74.6%
 Fizbo 1.9 64-bit 4CPU3255+17−1745.7%+26.455.5%1004
61.7%
 Xiphos 0.4 64-bit 4CPU3251+19−1943.8%+39.561.1%830
53.7%
 RofChade 2.1 64-bit 4CPU3250+25−2544.4%+36.860.0%452
72.4%
 Andscacs 0.921 64-bit 4CPU3240+16−1650.7%−6.247.5%1225
52.1%
 Andscacs 0.93 64-bit 4CPU3240+18−1842.9%+45.054.8%938
65.3%
 Stockfish DD 64-bit 4CPU3235+17−1763.0%−78.656.1%1032
56.6%
13RubiChess 1.6 64-bit 4CPU3232+26−2661.2%−69.250.9%436
56.1%
 Andscacs 0.91 64-bit 4CPU3229+22−2242.5%+47.959.2%596
52.3%
 Komodo 7a 64-bit 4CPU3228+18−1860.7%−64.659.0%897
64.9%
 Andscacs 0.89 64-bit 4CPU3223+21−2145.9%+28.355.0%662
49.0%
14Arasan 21.4 64-bit 4CPU3223+27−2746.8%+16.255.7%402
58.2%
 Komodo TCEC 64-bit 4CPU3220+18−1861.7%−73.955.1%925
57.8%
 Booot 6.2 64-bit 4CPU3217+14−1442.9%+46.659.3%1517
50.0%
 Laser 1.6 64-bit 4CPU3217+16−1643.5%+44.155.2%1124
54.8%
 Schooner 2.1 64-bit 4CPU3216+23−2344.6%+33.455.5%550
55.4%
 Andscacs 0.88 64-bit 4CPU3213+27−2845.0%+31.454.8%387
54.4%
 Komodo 6 64-bit 4CPU3211+17−1758.6%−52.256.7%1065
61.0%
 Andscacs 0.90 64-bit 4CPU3207+24−2450.3%+2.655.1%515
52.5%
 Stockfish 4 64-bit 4CPU3206+17−1760.9%−64.158.9%1054
66.5%
 Komodo 5.1 64-bit 4CPU3201+20−2061.8%−72.354.8%715
49.5%
 Schooner 2.0.34 64-bit 4CPU3201+20−2049.3%+3.357.9%734
51.6%
 Andscacs 0.872 64-bit 4CPU3200+24−2451.3%−4.858.8%476
53.9%
 Fire 4 64-bit 4CPU3199+13−1346.5%+21.859.7%1885
52.6%
 Arasan 21.3 64-bit 4CPU3198+30−3046.7%+26.055.7%314
65.9%
 Ethereal 10.00 64-bit 4CPU3190+20−2053.4%−23.250.8%788
67.6%
15Houdini 1.5a 64-bit 4CPU3184+18−1862.2%−80.545.0%991
53.2%
16SlowChess Blitz Classic 1.9 64-bit 4CPU3182+27−2753.3%−18.958.0%383
53.1%
17‑18Gull 3 64-bit 4CPU3181+9−942.0%+51.154.3%3711
51.8%
17‑18NirvanaChess 2.4 64-bit 4CPU3181+13−1341.7%+55.354.2%1828
51.3%
 Fizbo 1.8 64-bit 4CPU3180+20−2043.9%+41.949.3%724
53.6%
 Gull 2.8b 64-bit 4CPU3179+19−1949.1%+3.751.8%797
49.6%
 Xiphos 0.3 64-bit 4CPU3179+21−2149.2%+3.654.2%660
52.3%
19Vajolet2 2.7 64-bit 4CPU3178+27−2754.3%−24.754.7%397
54.9%
 RofChade 2.0 64-bit 4CPU3176+21−2149.7%+1.457.7%620
56.6%
20Equinox 3.20 64-bit 4CPU3174+11−1141.9%+52.259.0%2635
54.3%
 Arasan 21.2 64-bit 4CPU3172+30−3052.2%−12.160.6%302
58.0%
 Arasan 21.1 64-bit 4CPU3168+27−2751.2%−7.759.5%383
49.7%
 Booot 6.1 64-bit 4CPU3168+20−2042.0%+49.460.3%726
50.3%
21ChessBrainVB 3.72 4CPU3168+30−3045.0%+30.451.3%320
52.2%
 Stockfish 3 64-bit 4CPU3167+21−2156.0%−35.557.8%663
51.3%
 ChessBrainVB 3.74 4CPU3164+128−13046.9%+18.056.3%16
50.7%
 RubiChess 1.5 64-bit 4CPU3163+29−2952.4%−13.954.3%348
52.8%
 Equinox 3.30 64-bit 4CPU3162+18−1843.9%+38.858.9%896
60.2%
22Critter 1.6a 64-bit 4CPU3160+8−845.3%+31.454.6%5429
68.7%
23Hannibal 1.7 64-bit 4CPU3156+14−1442.3%+47.454.5%1577
60.2%
 NirvanaChess 2.3 64-bit 4CPU3153+18−1841.4%+55.056.8%869
56.2%
 Fire 3.0 64-bit 4CPU3151+17−1749.5%+2.358.2%948
53.9%
24‑25Bouquet 1.8 64-bit 4CPU3150+11−1143.6%+40.856.7%2427
49.8%
 Critter 1.4 64-bit 4CPU3150+18−1860.0%−61.454.2%907
48.9%
24‑25Nemorino 5.00 64-bit 4CPU3150+18−1848.1%+10.252.3%878
57.8%
 Stockfish 2.2.2 64-bit 4CPU3148+16−1659.2%−56.853.4%1141
54.8%
 Critter 1.2 64-bit 4CPU3146+20−2058.9%−54.952.9%762
53.2%
 Andscacs 0.86 64-bit 4CPU3145+20−2041.9%+52.755.0%725
53.1%
 Laser 1.5 64-bit 4CPU3144+20−2049.4%+7.754.5%723
52.5%
 Gull 2.3 64-bit 4CPU3143+17−1747.4%+14.859.3%982
49.9%
 Stockfish 2.3.1 64-bit 4CPU3143+19−1955.4%−33.252.5%846
52.9%
26Texel 1.07 64-bit 4CPU3142+14−1449.5%+5.249.2%1620
52.5%
27Pedone 1.8 64-bit 4CPU3141+28−2846.7%+18.857.4%350
53.7%
 NirvanaChess 2.2 64-bit 4CPU3139+17−1840.8%+59.857.6%965
50.1%
28Protector 1.9.0 64-bit 4CPU3139+15−1546.4%+25.053.9%1338
56.4%
29Alfil 15.7 64-bit 4CPU3137+17−1742.9%+48.656.3%1006
52.2%
 Vajolet2 2.6.1 64-bit 4CPU3137+21−2150.8%−5.060.3%605
56.2%
 Andscacs 0.85 64-bit 4CPU3134+25−2543.9%+42.553.1%467
50.4%
30Igel 2.3.1 64-bit 4CPU3134+27−2750.2%−2.553.2%406
53.3%
 Bouquet 1.5 64-bit 4CPU3132+23−2346.4%+20.863.6%500
50.3%
 Sting SF 4.8.4 64-bit 4CPU3132+29−2953.3%−20.662.4%330
49.2%
 Sting SF 6 64-bit 4CPU3132+28−2850.8%−5.961.0%354
50.5%
 Texel 1.06 64-bit 4CPU3132+20−2046.1%+25.653.6%739
59.5%
 DeepSaros 4.1.6 64-bit 4CPU3128+26−2645.2%+28.857.5%419
50.7%
 Pedone 1.9 64-bit 4CPU3128+28−2849.4%+1.355.4%354
51.1%
 Stockfish 2.0.1 64-bit 4CPU3127+24−2456.4%−40.048.6%514
55.3%
 Protector 1.8.0 64-bit 4CPU3125+28−2850.4%−1.854.7%386
49.7%
31Wasp 3.60 64-bit 4CPU3125+36−3645.0%+29.350.9%230
51.0%
 ChessBrainVB 3.68 4CPU3124+26−2649.2%+4.651.6%428
50.1%
 Gull 3.1 64-bit 4CPU3124+30−3045.4%+33.845.1%359
52.7%
32‑33BlackMamba 2.0 64-bit 4CPU3123+14−1544.2%+38.154.3%1408
50.0%
32‑33iCE 4.0 64-bit 4CPU3123+28−2847.8%+11.150.8%380
55.5%
 Arasan 20.4.1 64-bit 4CPU3121+25−2651.7%−11.150.2%452
49.9%
 Fizbo 1.7 64-bit 4CPU3121+27−2756.1%−39.052.2%410
54.6%
 Elektro 1.2 64-bit 4CPU3119+23−2346.1%+26.655.5%546
51.1%
 Sting SF 5 64-bit 4CPU3118+25−2548.1%+12.754.0%465
57.2%
 Stockfish 1.9.1 64-bit 4CPU3115+22−2260.9%−73.446.6%639
53.2%
 IvanHoe 9.46h 64-bit 4CPU3114+14−1453.2%−19.459.5%1542
50.8%
 Stockfish 2.1.1 64-bit 4CPU3113+27−2754.7%−28.348.3%406
53.5%
 RobboLito 0.21Q 64-bit 4CPU3112+22−2250.9%−5.962.7%569
53.3%
 Hannibal 1.5 64-bit 4CPU3111+19−1953.2%−20.957.1%819
50.0%
34Senpai 2.0 64-bit 4CPU3111+20−2051.6%−12.448.6%780
54.9%
 Bouquet 1.6 64-bit 4CPU3109+21−2150.0%−0.360.7%641
48.8%
 Sting SF 3 64-bit 4CPU3109+21−2147.7%+12.258.5%644
50.0%
 Sting SF 9 64-bit 4CPU3109+28−2848.0%+11.347.2%381
50.1%
 Stockfish 1.8 64-bit 4CPU3109+19−1861.4%−76.950.2%898
52.4%
 Sting SF 2 64-bit 4CPU3108+27−2748.8%+8.858.1%375
49.7%
35Winter 0.7 64-bit 4CPU3108+25−2645.1%+32.047.1%463
53.9%
 ChessBrainVB 3.66 4CPU3106+28−2854.2%−26.748.7%378
53.8%
 Andscacs 0.83 64-bit 4CPU3104+29−2946.6%+19.451.2%338
50.2%
 Stockfish 1.7.1 64-bit 4CPU3104+19−1960.4%−67.852.6%882
53.4%
 Xiphos 0.2.2 64-bit 4CPU3103+26−2647.3%+13.953.6%414
52.6%
 Wasp 3.50 64-bit 4CPU3102+19−1950.4%−4.953.6%785
58.6%
 Gull 2.2 64-bit 4CPU3098+25−2544.5%+31.554.8%469
51.3%
 Vajolet2 2.5 64-bit 4CPU3098+24−2451.5%−10.254.0%493
55.4%
36Naum 4.6 64-bit 4CPU3096+14−1448.1%+11.354.3%1544
49.6%
 Nemorino 4.00 64-bit 4CPU3096+22−2250.0%+1.152.9%624
49.9%
 NirvanaChess 2.1c 64-bit 4CPU3096+22−2345.2%+31.047.7%608
51.5%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+49.448.9%562
62.1%
 Arasan 20.3 64-bit 4CPU3089+32−3252.5%−20.247.4%302
50.2%
 Laser 1.4 64-bit 4CPU3089+19−1949.6%+0.145.7%843
52.5%
 Critter 1.01 64-bit 4CPU3088+27−2746.1%+22.254.8%385
50.5%
 Pedone 1.7 64-bit 4CPU3087+19−1948.2%+11.656.4%801
57.6%
 Texel 1.05 64-bit 4CPU3085+17−1747.3%+18.551.4%1016
55.8%
 Andscacs 0.82 64-bit 4CPU3082+29−2950.6%−2.455.2%330
50.0%
 Topple 0.7.5 64-bit 4CPU3082+68−6756.1%−40.945.5%66
53.9%
 Critter 0.90 64-bit 4CPU3079+31−3147.6%+13.246.5%316
52.4%
 Hannibal 1.4b 64-bit 4CPU3078+15−1542.3%+47.151.3%1332
50.7%
 Andscacs 0.81 64-bit 4CPU3077+31−3148.7%+6.049.3%300
53.9%
 Protector 1.7.0 64-bit 4CPU3075+19−1944.1%+37.350.6%834
52.8%
 Demolito 2019-04-27 64-bit 4CPU3073+66−6650.0%−0.338.9%72
50.7%
 Nemorino 3.0 64-bit 4CPU3072+27−2747.9%+13.446.1%427
52.1%
 Protector 1.6.0 64-bit 4CPU3071+21−2243.2%+44.850.2%656
51.4%
37Rodent III 0.238 64-bit 4CPU3071+20−2047.2%+14.750.0%742
56.0%
 Rodent III 0.276 64-bit 4CPU3068+29−2949.6%+3.558.2%337
51.6%
 RubiChess 1.3 64-bit 4CPU3067+22−2252.8%−17.544.2%642
54.2%
 Defenchess 1.1f 64-bit 4CPU3066+19−1951.7%−12.145.3%916
50.2%
38Demolito 2018-10-29 64-bit 4CPU3066+30−3048.6%+5.051.9%322
59.3%
 Wasp 3.0 64-bit 4CPU3061+25−2551.1%−8.655.0%462
55.7%
 Texel 1.04 64-bit 4CPU3058+21−2143.1%+43.547.8%722
54.5%
 Alfil 15.8 64-bit 4CPU3057+22−2253.9%−24.547.9%631
50.7%
 NirvanaChess 2.0a 64-bit 4CPU3056+30−3044.7%+36.550.1%337
50.6%
 Protector 1.5.0 64-bit 4CPU3056+18−1842.5%+47.947.4%952
55.4%
39Amoeba 3.0 64-bit 4CPU3054+26−2654.8%−32.444.8%466
51.0%
 Pedone 1.6 64-bit 4CPU3053+23−2349.5%+3.557.7%508
54.6%
 Ethereal 9.00 64-bit 4CPU3051+23−2346.8%+19.445.1%570
65.9%
 Arasan 19.2 64-bit 4CPU3043+31−3151.0%−6.454.8%305
49.7%
 Vajolet2 2.4 64-bit 4CPU3043+19−1947.2%+18.645.7%878
52.1%
 Vajolet2 2.2 64-bit 4CPU3042+27−2747.0%+15.548.7%423
55.6%
 Stockfish 1.6.3 64-bit 4CPU3040+22−2258.2%−54.345.0%633
50.1%
 Wasp 2.6 64-bit 4CPU3040+18−1848.9%+7.847.2%968
51.8%
 Gull R375 64-bit 4CPU3039+22−2243.4%+37.557.4%605
60.6%
 Critter 0.80 64-bit 4CPU3034+31−3150.9%−8.748.3%321
50.7%
 Hannibal 1.3 64-bit 4CPU3034+22−2243.0%+42.648.6%642
50.2%
 Pedone 1.5 64-bit 4CPU3034+31−3149.5%+2.951.6%304
52.6%
 Wasp 2.01 64-bit 4CPU3032+30−3055.3%−32.254.5%321
56.0%
 Arasan 20.0 64-bit 4CPU3029+30−3047.4%+16.053.4%328
50.9%
 Vajolet2 2.3 64-bit 4CPU3028+31−3145.2%+25.553.5%303
54.0%
40Bobcat 8.0 64-bit 4CPU3026+21−2148.3%+11.653.5%636
54.1%
41Pirarucu 2.7.4 64-bit 4CPU3025+21−2154.0%−29.847.6%715
51.9%
 Andscacs 0.80 64-bit 4CPU3024+31−3150.2%−1.546.7%317
49.5%
 Senpai 1.0 64-bit 4CPU3024+16−1646.2%+21.053.5%1095
53.3%
 Pirarucu 2.9.5 64-bit 4CPU3022+34−3450.0%−2.153.4%253
59.6%
42Rybka 2.3.2a 64-bit 4CPU3018+13−1362.8%−86.343.9%1928
53.8%
43Spike 1.4 Leiden 4CPU3017+11−1145.2%+29.247.7%2862
49.4%
 Winter 0.6 64-bit 4CPU3017+32−3253.0%−27.635.6%329
52.7%
 Arasan 19.0.1 64-bit 4CPU3015+32−3252.2%−17.741.4%302
51.8%
44Crafty 25.2 64-bit 4CPU3015+16−1648.5%+8.942.5%1279
51.2%
45chess22k 1.10 64-bit 4CPU3014+22−2246.7%+16.643.7%680
53.1%
 Nemorino 2.00 64-bit 4CPU3013+30−3047.0%+16.159.6%302
53.2%
 Laser 1.3 64-bit 4CPU3011+29−3047.2%+15.655.8%321
50.8%
 Texel 1.03 64-bit 4CPU3011+31−3150.3%−1.747.0%313
50.8%
46Cheng 4.39 64-bit 4CPU3010+15−1549.6%+2.648.8%1313
69.9%
 Pedone 1.4.1 64-bit 4CPU3001+31−3148.5%+8.055.7%305
53.2%
 Vajolet2 2.1 64-bit 4CPU2999+25−2550.9%−3.248.5%462
53.7%
 Rodent III 0.210 64-bit 4CPU2998+28−2845.1%+32.642.5%402
58.3%
 Fizbo 1.5 64-bit 4CPU2993+27−2752.6%−15.848.5%410
65.2%
47Scorpio 2.8 64-bit 4CPU2986+25−2549.9%−0.947.2%472
56.5%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+49.442.9%912
55.4%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+23.442.4%531
53.6%
 Bobcat 7.6 64-bit 4CPU2979+31−3148.6%+9.041.8%318
58.7%
 Rybka 2.2 64-bit 4CPU2975+20−2063.4%−91.541.1%863
52.5%
 Arasan 18.3 64-bit 4CPU2974+30−3046.6%+20.246.8%327
54.0%
48EXchess 7.97b 64-bit 4CPU2972+18−1847.4%+18.645.9%1017
51.3%
 Arasan 18.2 64-bit 4CPU2971+28−2851.9%−14.450.3%388
54.4%
49Spark 1.0 64-bit 4CPU2970+13−1345.0%+31.846.6%1787
50.3%
 Stockfish 1.5.1 64-bit 4CPU2970+25−2553.7%−23.647.7%495
62.3%
 Demolito 2017-08-26 64-bit 4CPU2964+21−2140.2%+63.940.8%748
50.8%
 Winter 0.5 64-bit 4CPU2964+26−2650.4%−5.638.3%470
53.0%
 Protector 1.3.6 64-bit 4CPU2962+32−3246.6%+18.944.3%307
57.9%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+29.548.6%356
49.1%
50Toga II 4.0 64-bit 4CPU2958+18−1941.4%+57.340.4%958
55.3%
 Fizbo 1.31 64-bit 4CPU2956+29−3051.1%−6.741.9%358
61.1%
 Crafty 25.0 64-bit 4CPU2950+25−2548.1%+13.047.9%468
55.6%
 Stockfish 1.4 64-bit 4CPU2948+17−1754.2%−28.842.2%1131
54.2%
 Scorpio 2.7.9 64-bit 4CPU2946+22−2246.7%+21.440.5%659
60.1%
51Gaviota 1.0 64-bit 4CPU2943+16−1647.3%+16.145.4%1256
55.4%
 EXchess 7.51b 64-bit 4CPU2940+33−3350.5%−0.845.4%280
51.4%
52The Baron 3.44 64-bit 4CPU2940+27−2747.2%+17.544.9%412
50.4%
53Tucano 7.07 64-bit 4CPU2939+34−3452.4%−14.444.4%275
57.3%
 Arasan 17.5 64-bit 4CPU2935+27−2748.4%+10.345.1%406
52.9%
 Bobcat 7.1 64-bit 4CPU2934+32−3248.7%+8.046.3%298
51.7%
 EXchess 7.71b 64-bit 4CPU2933+28−2853.3%−23.243.2%403
49.2%
54Marvin 3.3.2 64-bit 4CPU2933+37−3744.8%+31.143.7%222
50.5%
 Spark 0.4 64-bit 4CPU2933+21−2143.0%+48.645.2%703
53.3%
 Ethereal 8.62 64-bit 4CPU2932+22−2244.2%+35.449.7%600
48.4%
 Fizbo 1.4 64-bit 4CPU2932+28−2845.9%+25.544.7%394
59.6%
 Spark 0.3 64-bit 4CPU2928+23−2346.5%+20.349.7%572
52.4%
 Arasan 18.0 64-bit 4CPU2927+29−2947.2%+15.341.5%378
50.2%
55Thinker 5.4d Inert 64-bit 4CPU2927+22−2346.0%+23.749.7%587
58.9%
 Thinker 5.4c Inert 64-bit 4CPU2924+15−1548.1%+12.339.4%1502
52.0%
 Marvin 3.2.0 64-bit 4CPU2923+21−2153.7%−26.643.0%698
58.6%
 Toga II 3.0 4CPU2919+22−2245.6%+27.449.0%592
59.9%
56DisasterArea 1.65 64-bit 4CPU2915+21−2144.2%+36.546.1%709
55.7%
57Gogobello 2.0 64-bit 4CPU2913+25−2550.8%−7.039.1%522
55.9%
 Crafty 23.8 64-bit 4CPU2910+33−3347.0%+19.646.9%271
54.0%
 Asymptote 0.6 64-bit 4CPU2905+84−8351.3%−13.552.5%40
50.3%
 Thinker 5.4a Inert 64-bit 4CPU2905+23−2447.3%+19.545.4%560
52.5%
 The Baron 3.41 64-bit 4CPU2904+20−2039.1%+70.443.8%800
47.5%
 Toga II 1.4.1SE 4CPU2904+13−1348.5%+11.141.6%2041
79.0%
58Bright 0.4a 4CPU2897+15−1547.4%+16.641.1%1495
48.5%
 Cheng4 0.36c 64-bit 4CPU2897+30−3048.8%+6.446.6%326
53.0%
59‑60Glaurung 2.2 64-bit 4CPU2896+16−1647.0%+19.040.7%1259
48.7%
59‑60Tornado 6.0 64-bit 4CPU2896+26−2645.5%+27.943.3%469
51.6%
 Tornado 8.0 64-bit 4CPU2896+19−2045.2%+30.339.0%881
53.9%
 Tornado 7.0 64-bit 4CPU2894+25−2545.3%+30.839.2%502
56.8%
 Bright 0.5c 4CPU2891+23−2347.2%+19.442.9%616
56.6%
61Octochess r5506 64-bit 4CPU2889+21−2144.5%+35.446.7%715
56.3%
62MinkoChess 1.3 64-bit 4CPU2886+21−2146.0%+24.743.7%725
50.7%
 Tornado 4.88 64-bit 4CPU2886+26−2646.0%+24.441.5%479
52.0%
 Toga II 1.4 beta5c 4CPU2885+18−1851.7%−11.945.8%996
60.1%
 Fruit Reloaded 3.2.1 64-bit 4CPU2882+18−1838.8%+74.239.1%1024
49.0%
 Pedone 1.3 64-bit 4CPU2882+29−2946.6%+20.151.0%355
56.7%
 Crafty 24.1 64-bit 4CPU2879+31−3243.5%+40.939.1%322
57.0%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.4%+16.544.0%445
64.9%
 Glaurung 2.1 64-bit 4CPU2869+19−1942.8%+50.341.3%946
53.3%
 Bobcat 6.4b 64-bit 4CPU2867+27−2748.3%+11.546.5%415
51.9%
 The Baron 3.29 64-bit 4CPU2866+25−2546.3%+22.843.1%489
51.8%
 EXchess 7.18b 64-bit 4CPU2865+33−3347.3%+16.838.4%292
57.8%
 Scorpio 2.7.5 64-bit 4CPU2861+33−3345.7%+24.250.0%266
51.6%
 Gaviota 0.86 64-bit 4CPU2860+24−2453.4%−26.832.6%617
51.7%
 Crafty 23.4 64-bit 4CPU2859+34−3446.9%+19.235.7%272
51.0%
 Arasan 16.3 64-bit 4CPU2858+34−3449.1%+4.540.2%276
53.6%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+44.741.3%310
51.2%
63Monolith 1.0 64-bit 4CPU2855+21−2248.6%+8.643.0%693
53.9%
64Counter 3.2 64-bit 4CPU2853+32−3250.7%−4.340.2%301
57.4%
 Igel 1.9.0 64-bit 4CPU2849+31−3241.0%+59.439.5%324
50.7%
 Topple 0.7.0 64-bit 4CPU2848+91−9341.3%+57.827.5%40
52.6%
65Cheese 2.0 64-bit 4CPU2845+30−3046.2%+23.838.6%365
52.5%
66Shield 2.1 64-bit 4CPU2844+24−2448.7%+9.736.0%594
63.3%
67‑68BugChess2 1.9 64-bit 4CPU2838+21−2143.4%+44.838.2%738
51.4%
67‑68Loop 13.6 (Loop 2007) 64-bit 4CPU2838+19−1948.3%+12.042.8%894
51.2%
 Crafty 23.3 64-bit 4CPU2837+31−3241.5%+55.638.2%325
65.4%
 Bright 0.3a 4CPU2830+18−1842.4%+51.041.8%988
53.2%
 Glaurung 2.0.1 64-bit 4CPU2829+17−1743.8%+38.643.5%1100
64.3%
 Octochess r5190 64-bit 4CPU2823+24−2445.9%+24.244.5%555
57.7%
 Pedone 1.1 64-bit 4CPU2819+31−3153.7%−31.439.5%347
51.4%
 Arminius 2018-12-23 64-bit 4CPU2818+44−4544.2%+41.136.4%165
53.8%
69Jonny 4.00 4CPU2816+25−2543.6%+42.335.0%540
72.1%
 Bright 0.2c 4CPU2806+21−2143.9%+40.143.2%724
58.6%
 Pedone 1.2 64-bit 4CPU2801+36−3648.4%+9.142.3%246
64.3%
 Crafty 23.1 64-bit 4CPU2791+36−3743.8%+43.336.9%241
52.7%
 Laser 1.0 64-bit 4CPU2790+37−3836.3%+89.439.2%227
58.5%
 Bagatur 1.7a 64-bit 4CPU2775+131−13445.0%+30.420.0%20
55.3%
 Glaurung 1.2.1 64-bit 4CPU2766+19−1940.2%+63.838.1%967
68.7%
 Crafty 23.0 64-bit 4CPU2759+18−1839.0%+77.734.1%1042
68.2%
70Fridolin 3.10 64-bit 4CPU2749+33−3349.5%−0.031.5%308
56.0%
 Alfil 13.1 64-bit 4CPU2746+28−2841.8%+53.134.1%440
77.0%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+114.936.7%607
62.7%
71Nebula 2.0 64-bit 4CPU2726+20−2045.1%+36.034.1%866
66.1%
 Scorpio 2.1 64-bit 4CPU2719+27−2734.4%+109.331.6%490
80.5%
 Igel 1.4.1 64-bit 4CPU2701+28−2850.7%−6.426.3%448
77.0%
72Hamsters 0.7.1 4CPU2686+32−3252.4%−14.536.2%318
53.9%
73RedQueen 1.1.98 64-bit 4CPU2684+27−2739.4%+80.228.5%494
65.5%
74ECE X3 64-bit 4CPU2677+23−2341.5%+68.123.4%709
57.0%
75Pharaon 3.5.1 4CPU2674+26−2643.6%+41.129.7%518
62.1%
76Jellyfish 1.1 64-bit 4CPU2667+29−2953.3%−24.832.3%403
60.3%
 RedQueen 1.1.97 64-bit 4CPU2662+22−2245.7%+27.433.3%726
71.7%
77Ghost 3.1 64-bit 4CPU2652+30−3053.9%−26.028.5%393
53.2%
78Arminius 2015-08-06 64-bit 4CPU2650+33−3344.2%+38.336.1%302
53.4%
 Gaviota 0.83 64-bit 4CPU2648+25−2547.3%+20.827.9%566
99.6%
 Fridolin 2.00 64-bit 4CPU2589+34−3441.9%+56.931.3%297
93.1%
79Delphil 3.2 64-bit 4CPU2555+31−3138.2%+85.130.5%374
52.5%
80Jazz 840 64-bit 4CPU2554+20−2057.8%−64.325.3%1000
91.0%
81Nemeton 1.8 4CPU2530+27−2749.9%+2.127.2%496
86.6%
82Jumbo 0.6.66 64-bit 4CPU2509+28−2850.0%−0.733.0%433
88.0%
83Myrddin 0.87 64-bit 4CPU2483+35−3538.9%+81.128.4%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
#NameElo1
Stock
2
Ether
3
Komod
4
Xipho
5
Fire
6
Laser
7
RofCh
8
Defen
9
Fizbo
10
Schoo
11
Andsc
12
Booot
1Stockfish 11 64-bit 4CPU3496 37.5 − 16.5
+21−0=33
−36		 41.5 − 12.5
+29−0=25
+11		42 − 12
+30−0=24
+3		42 − 10
+32−0=20
−5		36 − 8
+28−0=16
+4		43 − 7
+36−0=14
+54		46.5 − 7.5
+39−0=15
+47		   
2Ethereal 11.75 64-bit 4CPU335116.5 − 37.5
+0−21=33
+36		  17 − 15
+4−2=26
+3		16.5 − 15.5
+5−4=23
−21		20 − 12
+9−1=22
+1		18 − 14
+6−2=24
−32		18.5 − 13.5
+6−1=25
−27		18.5 − 13.5
+10−5=17
−31		11.5 − 6.5
+6−1=11
−3		  
3Komodo 10 64-bit 4CPU3347            
4Xiphos 0.6 64-bit 4CPU334012.5 − 41.5
+0−29=25
−11		15 − 17
+2−4=26
−3		  16 − 16
+4−4=24
−16		17.5 − 14.5
+7−4=21
−29		19 − 13
+10−4=18
−4		20.5 − 11.5
+9−0=23
+18		19.5 − 12.5
+10−3=19
−2		10.5 − 7.5
+4−1=13
−31		  
5Fire 7.1 64-bit 4CPU332212 − 42
+0−30=24
−3		15.5 − 16.5
+4−5=23
+21		 16 − 16
+4−4=24
+16		 19 − 13
+7−1=24
+12		19 − 13
+10−4=18
+16		18 − 14
+5−1=26
−7		25.5 − 20.5
+11−6=29
−17		10.5 − 7.5
+4−1=13
−7		19.5 − 12.5
+9−2=21
+3		24.5 − 13.5
+12−1=25
+19
6Laser 1.7 64-bit 4CPU328510 − 42
+0−32=20
+5		12 − 20
+1−9=22
−1		 14.5 − 17.5
+4−7=21
+29		13 − 19
+1−7=24
−12		 17 − 15
+6−4=22
+17		16 − 16
+6−6=20
−2		16 − 14
+6−4=20
+7		10 − 8
+2−0=16
+9		16.5 − 15.5
+5−4=23
−11		19 − 13
+7−1=24
+25
7RofChade 2.202 64-bit 4CPU32848 − 36
+0−28=16
−4		14 − 18
+2−6=24
+32		 13 − 19
+4−10=18
+4		13 − 19
+4−10=18
−16		15 − 17
+4−6=22
−17		 15 − 17
+3−5=24
−17		16 − 16
+6−6=20
−6		11.5 − 6.5
+5−0=13
+57		18 − 14
+7−3=22
+14		16.5 − 15.5
+6−5=21
−10
8Defenchess 2.2 64-bit 4CPU32837 − 43
+0−36=14
−54		13.5 − 18.5
+1−6=25
+27		 11.5 − 20.5
+0−9=23
−18		14 − 18
+1−5=26
+7		16 − 16
+6−6=20
+2		17 − 15
+5−3=24
+17		 19 − 13
+8−2=22
+42		11 − 7
+4−0=14
+42		18.5 − 13.5
+7−2=23
+20		16.5 − 15.5
+5−4=23
−12
9Fizbo 2 64-bit 4CPU32757.5 − 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		14 − 16
+4−6=20
−7		16 − 16
+6−6=20
+6		13 − 19
+2−8=22
−42		 10.5 − 7.5
+4−1=13
+37		21 − 17
+8−4=26
+19		21.5 − 16.5
+11−6=21
+27
10Schooner 2.2 64-bit 4CPU3267 6.5 − 11.5
+1−6=11
+3		 7.5 − 10.5
+1−4=13
+31		7.5 − 10.5
+1−4=13
+7		8 − 10
+0−2=16
−9		6.5 − 11.5
+0−5=13
−57		7 − 11
+0−4=14
−42		7.5 − 10.5
+1−4=13
−37		 9 − 7
+3−1=12
+26		9.5 − 6.5
+5−2=9
+52
11Andscacs 0.95 64-bit 4CPU3266    12.5 − 19.5
+2−9=21
−3		15.5 − 16.5
+4−5=23
+11		14 − 18
+3−7=22
−14		13.5 − 18.5
+2−7=23
−20		17 − 21
+4−8=26
−19		7 − 9
+1−3=12
−26		 16.5 − 15.5
+6−5=21
+8
12Booot 6.3.1 64-bit 4CPU3263    13.5 − 24.5
+1−12=25
−19		13 − 19
+1−7=24
−25		15.5 − 16.5
+5−6=21
+10		15.5 − 16.5
+4−5=23
+12		16.5 − 21.5
+6−11=21
−27		6.5 − 9.5
+2−5=9
−52		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
#NameElo1
Sto
2
Eth
3
Kom
4
Xip
5
Fir
6
Las
7
Rof
8
Def
9
Fiz
10
Sch
11
And
12
Boo
1Stockfish 11 64-bit 4CPU3496 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Ethereal 11.75 64-bit 4CPU33510.0 59.277.498.9100.0100.0100.0100.0100.0100.0100.0
3Komodo 10 64-bit 4CPU33470.040.8 66.996.5100.0100.0100.0100.0100.0100.0100.0
4Xiphos 0.6 64-bit 4CPU33400.022.633.1 92.0100.0100.0100.0100.0100.0100.0100.0
5Fire 7.1 64-bit 4CPU33220.01.13.58.0 100.0100.0100.0100.0100.0100.0100.0
6Laser 1.7 64-bit 4CPU32850.00.00.00.00.0 54.255.982.787.393.997.7
7RofChade 2.202 64-bit 4CPU32840.00.00.00.00.045.8 51.676.784.490.795.5
8Defenchess 2.2 64-bit 4CPU32830.00.00.00.00.044.148.4 75.683.790.295.3
9Fizbo 2 64-bit 4CPU32750.00.00.00.00.017.323.324.4 70.579.390.2
10Schooner 2.2 64-bit 4CPU32670.00.00.00.00.012.715.616.329.5 52.861.6
11Andscacs 0.95 64-bit 4CPU32660.00.00.00.00.06.19.39.820.747.2 61.3
12Booot 6.3.1 64-bit 4CPU32630.00.00.00.00.02.34.54.79.838.438.7 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Alter engine selection



Alter output selection

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:
  No recalibration (reference and current list are compared as they are)
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  Recalibrate current list to reference using all common engines

Created in 2005-2013 by CCRL team
Last games added on March 28, 2020