CCRL Blitz
Downloads and Statistics
September 19, 2020
Testing summary:
Total: 2'370'030 games
played by 2'800 programs

White wins: 913'140 (38.5%)
Black wins: 734'658 (31.0%)
Draws: 722'232 (30.5%)
White score: 53.8%

Free multi-CPU engines

Comparing 317 engines!
87 best versions of selected engines played 26282 games with each other

CCRL Blitz Rating List — Free multi-CPU engines (Quote)

Ponder off, General book up to 12 moves, up to 6 piece EGTB
Time control: From Jan 2020, equivalent to 2'+1" on an Intel i7-4770K. See the "about" page.
Computed on September 19, 2020 with Bayeselo based on 2'370'030 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 300 games or more. Normal font - less than 300 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1Lc0 0.25.1 t40-1541 RTX20803642+18−1868.7%−123.854.1%934 
93.8%
2Stockfish+NNUE 150720 64-bit 4CPU3625+14−1461.9%−80.863.8%1546
77.3%
 Lc0 0.23.1 w42850 RTX20803618+13−1262.1%−74.367.8%1789
98.1%
 Stockfish 2019-10-09 64-bit 4CPU3601+11−1166.7%−108.955.6%2753
59.7%
 Stockfish 11 64-bit 4CPU3599+13−1361.6%−76.560.2%1739
60.3%
 Lc0 0.22.0 w49921 RTX20803596+15−1563.8%−81.865.5%1292
92.1%
 Allie 0.5 nn42850 RTX20803570+32−3253.6%−24.265.2%253
79.2%
3Allie 0.5 nn49921 RTX20803556+13−1347.0%+9.068.0%1714
82.6%
 Stockfish 10 64-bit 4CPU3548+11−1167.1%−110.155.5%2680
59.7%
 Stockfish 9 64-bit 4CPU3546+12−1274.1%−183.344.7%2605
80.3%
 SugaR XPrO 1.4 64-bit 4CPU3534+24−2373.3%−174.247.8%640
56.6%
 Stockfish 130118 64-bit 4CPU3531+30−2959.5%−63.665.7%315
56.8%
 SugaR XPrO 1.2 64-bit 4CPU3528+16−1667.0%−126.754.9%1306
62.7%
 asmFish 191017 64-bit 4CPU3525+17−1765.6%−113.258.9%1080
89.6%
 ShashChess 6.0 64-bit 4CPU3505+24−2470.4%−135.452.0%550
62.2%
 SugaR XPrO 1.3 64-bit 4CPU3500+24−2450.3%−16.467.4%481
69.4%
 Stockfish 8 64-bit 4CPU3493+12−1169.4%−138.449.0%2734
97.0%
4Ethereal 12.25 64-bit 4CPU3469+21−2147.8%+14.760.1%627
86.4%
 Stockfish 160716 64-bit 4CPU3455+14−1379.9%−217.435.3%2345
86.5%
 Ethereal 12.00 64-bit 4CPU3443+15−1547.9%+13.659.3%1333
54.1%
 Stockfish 200516 64-bit 4CPU3441+18−1880.7%−220.934.3%1272
86.1%
5‑6Komodo 10 64-bit 4CPU3429+15−1475.8%−184.736.9%1875
50.1%
5‑6Xiphos 0.6 64-bit 4CPU3429+12−1142.2%+50.857.4%2347
62.6%
7Fire 7.1 64-bit 4CPU3427+9−945.8%+25.953.1%4744
49.8%
 Stockfish 7 64-bit 4CPU3427+20−2078.1%−200.538.0%1008
52.0%
 Ethereal 11.75 64-bit 4CPU3426+18−1844.6%+37.355.1%966
62.5%
8SlowChess Blitz Classic 2.2 64-bit 4CPU3422+14−1454.0%−24.356.1%1454
57.2%
 Stockfish 251115 64-bit 4CPU3420+17−1770.9%−144.243.4%1208
67.6%
 Ethereal 11.50 64-bit 4CPU3415+14−1446.5%+23.955.1%1582
93.8%
9RofChade 2.3 64-bit 4CPU3397+18−1848.0%+13.458.6%857
56.1%
 Xiphos 0.5 64-bit 4CPU3395+14−1444.5%+35.848.8%1646
57.2%
 Stockfish 6 64-bit 4CPU3393+15−1567.7%−118.549.8%1485
55.0%
 Ethereal 11.25 64-bit 4CPU3392+14−1447.0%+17.859.4%1545
77.8%
 Ethereal 11.00 64-bit 4CPU3383+17−1752.2%−14.955.7%1012
53.7%
 Komodo 9 64-bit 4CPU3382+16−1672.7%−151.243.9%1400
91.2%
 Stockfish 5 64-bit 4CPU3366+16−1671.8%−145.543.0%1380
54.5%
10Laser 1.7 64-bit 4CPU3365+10−946.2%+25.752.4%3679
63.4%
11RubiChess 1.7.3 64-bit 4CPU3360+28−2845.7%+29.249.2%380
64.1%
12Booot 6.4 64-bit 4CPU3355+13−1348.3%+11.457.0%1691
54.3%
13Defenchess 2.2 64-bit 4CPU3354+12−1246.4%+27.352.7%2263
53.6%
 Komodo 8 64-bit 4CPU3353+16−1668.0%−120.944.7%1330
64.8%
 Fire 6.1 64-bit 4CPU3348+15−1544.9%+33.944.1%1568
62.8%
 RofChade 2.202 64-bit 4CPU3345+15−1551.1%−3.456.5%1274
54.3%
14Fizbo 2 64-bit 4CPU3344+9−941.6%+53.046.9%4141
86.9%
15Andscacs 0.95 64-bit 4CPU3336+11−1051.2%−6.649.6%2930
55.4%
 Fire 5 64-bit 4CPU3335+15−1553.3%−18.251.4%1390
79.0%
 Andscacs 0.94 64-bit 4CPU3325+19−1944.0%+38.751.0%855
48.9%
 Booot 6.3.1 64-bit 4CPU3325+12−1245.6%+29.454.9%2201
55.0%
 Xiphos 0.4 64-bit 4CPU3324+18−1847.2%+17.046.1%1038
59.4%
 Komodo 7a 64-bit 4CPU3321+16−1661.5%−76.445.6%1334
54.9%
 Fizbo 1.9 64-bit 4CPU3319+14−1450.5%−1.642.4%1762
68.3%
 Andscacs 0.92 64-bit 4CPU3312+27−2757.3%−47.138.9%460
53.7%
 Stockfish DD 64-bit 4CPU3310+15−1566.6%−122.142.3%1559
55.5%
 RofChade 2.1 64-bit 4CPU3308+20−2046.1%+23.249.5%760
68.4%
 Andscacs 0.921 64-bit 4CPU3302+18−1864.7%−104.039.1%1017
55.0%
 Andscacs 0.93 64-bit 4CPU3300+17−1745.6%+35.342.5%1215
75.5%
 RubiChess 1.6.1.1 64-bit 4CPU3292+14−1449.2%+4.652.5%1572
62.8%
 Defenchess 2.1 64-bit 4CPU3288+19−1944.6%+38.644.0%941
50.7%
16Schooner 2.1 64-bit 4CPU3288+16−1650.3%−3.557.3%1079
53.7%
 Komodo TCEC 64-bit 4CPU3287+16−1664.9%−111.641.2%1429
51.8%
17Arasan 22.1 64-bit 4CPU3286+20−2049.5%−16.748.7%754
78.5%
 Schooner 2.0.34 64-bit 4CPU3276+16−1640.8%+53.945.2%1332
49.0%
 Schooner 2.2 64-bit 4CPU3276+11−1144.7%+31.956.3%2572
54.7%
 Andscacs 0.91 64-bit 4CPU3275+16−1644.2%+41.347.2%1254
50.5%
 Laser 1.6 64-bit 4CPU3275+17−1747.5%+20.652.5%1116
53.6%
 Andscacs 0.90 64-bit 4CPU3274+18−1852.0%−8.049.1%988
52.6%
 Arasan 22.0 64-bit 4CPU3273+14−1447.3%+16.651.1%1617
61.1%
 Stockfish 4 64-bit 4CPU3270+17−1769.2%−146.137.0%1346
65.2%
18Houdini 1.5a 64-bit 4CPU3265+16−1674.8%−186.432.0%1649
56.5%
 RubiChess 1.6 64-bit 4CPU3263+16−1646.4%+18.749.2%1216
62.0%
 Andscacs 0.88 64-bit 4CPU3260+17−1741.0%+61.146.8%1104
49.7%
19Gull 3 64-bit 4CPU3260+9−946.1%+24.844.9%4857
56.9%
 Gull 2.8b 64-bit 4CPU3258+21−2170.1%−147.934.7%849
52.8%
 Arasan 21.4 64-bit 4CPU3257+21−2144.6%+31.354.1%638
50.1%
 Booot 6.2 64-bit 4CPU3257+13−1343.4%+51.848.7%2107
52.5%
 Fire 4 64-bit 4CPU3256+10−1046.1%+24.449.7%3212
55.7%
20Pedone 2.0 64-bit 4CPU3255+14−1453.4%−18.552.3%1649
53.4%
21Wasp 4.0 64-bit 4CPU3254+25−2554.6%−26.852.5%455
55.5%
22Equinox 3.30 64-bit 4CPU3252+7−841.9%+53.750.5%6058
49.1%
 Komodo 6 64-bit 4CPU3252+19−1966.1%−117.140.7%998
65.9%
 Fizbo 1.8 64-bit 4CPU3247+14−1445.9%+30.742.5%1712
55.7%
 Arasan 21.3 64-bit 4CPU3245+24−2445.6%+27.251.6%494
50.7%
 Gull 2.3 64-bit 4CPU3245+17−1763.8%−102.043.5%1137
48.5%
23Igel 2.5.0 64-bit 4CPU3245+24−2452.9%−17.451.0%492
65.9%
 Komodo 5.1 64-bit 4CPU3239+16−1566.6%−121.339.7%1503
52.9%
 Andscacs 0.872 64-bit 4CPU3238+17−1747.3%+21.546.8%1101
53.6%
 Stockfish 3 64-bit 4CPU3237+19−1968.0%−133.738.5%1022
53.9%
 RofChade 2.0 64-bit 4CPU3236+17−1755.8%−41.549.9%1097
60.8%
24Critter 1.6a 64-bit 4CPU3233+7−747.1%+19.445.8%8172
66.3%
25‑26Combusken 1.3.0 64-bit 4CPU3228+25−2552.1%−13.845.5%484
48.0%
25‑26Vajolet2 2.8 64-bit 4CPU3228+12−1247.0%+19.446.5%2243
63.9%
 Gull 2.2 64-bit 4CPU3224+20−2067.9%−131.936.8%945
49.0%
27Hannibal 1.7 64-bit 4CPU3224+9−944.9%+35.247.0%3979
61.2%
28NirvanaChess 2.4 64-bit 4CPU3223+10−1049.4%+5.845.7%3418
53.9%
 Andscacs 0.86 64-bit 4CPU3222+17−1744.9%+35.142.7%1128
50.9%
 Stockfish 2.3.1 64-bit 4CPU3221+18−1859.5%−59.746.9%951
57.8%
 Equinox 3.20 64-bit 4CPU3216+52−5342.7%+47.848.6%109
49.5%
 Fire 3.0 64-bit 4CPU3216+17−1743.7%+38.447.5%1126
56.0%
29Demolito 2020-04-10 64-bit 4CPU3214+15−1547.3%+16.050.2%1345
53.5%
 Gull 3.1 64-bit 4CPU3213+18−1840.9%+68.643.6%1090
57.0%
 NirvanaChess 2.3 64-bit 4CPU3211+14−1339.0%+78.245.8%1832
56.5%
 Critter 1.2 64-bit 4CPU3209+16−1668.6%−131.639.9%1331
50.8%
 Demolito 2020-01-11 64-bit 4CPU3209+16−1659.0%−55.847.4%1143
61.3%
 Arasan 21.2 64-bit 4CPU3206+17−1752.2%−15.250.7%1031
80.5%
30BlackMamba 2.0 64-bit 4CPU3197+12−1242.3%+55.546.6%2426
48.6%
 Pedone 1.9 64-bit 4CPU3197+17−1750.0%−0.452.4%1076
56.5%
 Stockfish 2.1.1 64-bit 4CPU3195+15−1566.3%−113.341.2%1489
49.9%
31Texel 1.07 64-bit 4CPU3195+10−1050.0%+3.645.8%3130
56.7%
 Arasan 21.1 64-bit 4CPU3193+17−1751.3%−8.052.9%1015
55.5%
 Igel 2.4.0 64-bit 4CPU3191+19−1948.9%+8.449.8%817
51.8%
 RubiChess 1.5 64-bit 4CPU3191+26−2552.5%−16.842.8%479
52.2%
 Wasp 3.75 64-bit 4CPU3190+13−1352.8%−17.251.8%1799
59.9%
 Booot 6.1 64-bit 4CPU3187+15−1543.7%+44.944.7%1536
58.6%
 Vajolet2 2.6.1 64-bit 4CPU3185+15−1551.4%−7.956.8%1263
54.2%
 Fizbo 1.7 64-bit 4CPU3184+15−1541.9%+58.439.5%1498
57.1%
 NirvanaChess 2.2 64-bit 4CPU3182+16−1640.6%+68.443.4%1284
49.5%
32chess22k 1.14 64-bit 4CPU3182+13−1351.1%−7.550.4%1785
58.2%
33Nemorino 5.00 64-bit 4CPU3180+11−1151.4%−9.047.9%2763
57.8%
 Combusken 1.2.0 64-bit 4CPU3178+23−2352.0%−32.736.8%655
49.9%
34Senpai 2.0 64-bit 4CPU3178+10−1051.7%−11.745.9%3412
61.6%
35Elektro 1.2 64-bit 4CPU3175+16−1642.5%+54.046.5%1300
63.6%
 Laser 1.5 64-bit 4CPU3171+19−1950.3%+4.537.4%1000
52.5%
36‑37ChessBrainVB 3.74 4CPU3170+14−1454.2%−27.441.9%1596
50.0%
36‑37iCE 4.0 64-bit 4CPU3170+12−1251.7%−11.448.2%2163
52.4%
 Hannibal 1.5 64-bit 4CPU3169+12−1234.2%+113.039.3%2349
57.0%
 Stockfish 2.0.1 64-bit 4CPU3167+14−1466.8%−113.843.4%1647
72.1%
38Minic 2.33 64-bit 4CPU3160+20−2050.7%−4.440.6%801
50.4%
 Pedone 1.8 64-bit 4CPU3160+18−1849.0%+5.453.9%878
53.1%
 Igel 2.3.1 64-bit 4CPU3159+15−1561.4%−72.444.1%1511
54.6%
 Texel 1.06 64-bit 4CPU3158+15−1542.2%+53.043.8%1558
48.9%
 chess22k 1.13 64-bit 4CPU3158+14−1449.7%+1.750.4%1521
52.1%
 Critter 1.01 64-bit 4CPU3157+16−1664.3%−100.638.1%1338
53.5%
 Wasp 3.60 64-bit 4CPU3156+18−1843.4%+40.254.4%885
58.8%
 Stockfish 1.9.1 64-bit 4CPU3154+13−1270.2%−141.438.3%2428
51.1%
 Sting SF 9 64-bit 4CPU3153+17−1750.4%−4.045.1%1137
55.7%
 Wasp 3.50 64-bit 4CPU3152+18−1852.7%−19.246.8%965
55.4%
39Naum 4.6 64-bit 4CPU3150+9−1041.7%+62.040.0%4057
73.3%
 Arasan 20.4.1 64-bit 4CPU3144+18−1849.9%−0.340.8%974
53.5%
 Texel 1.05 64-bit 4CPU3143+14−1433.0%+124.835.4%2041
55.3%
 Stockfish 1.7.1 64-bit 4CPU3141+13−1368.1%−125.138.4%2052
53.3%
40Marvin 3.6.0 64-bit 4CPU3140+21−2243.8%+39.044.5%668
58.1%
 Minic 2.0 64-bit 4CPU3138+12−1246.1%+23.445.1%2099
49.0%
 Stockfish 1.8 64-bit 4CPU3138+16−1668.0%−124.438.4%1379
57.4%
 Pedone 1.7 64-bit 4CPU3136+18−1847.4%+16.642.7%1006
49.2%
 RubiChess 1.4 64-bit 4CPU3136+25−2547.9%+12.751.3%480
58.2%
41Pirarucu 3.3.5 64-bit 4CPU3133+18−1848.5%+9.544.1%948
60.1%
 Pirarucu 3.2.4 64-bit 4CPU3130+15−1547.3%+15.849.2%1280
50.5%
42‑43Protector 1.9.0 64-bit 4CPU3129+9−947.1%+19.841.8%4968
52.1%
42‑43Winter 0.8 64-bit 4CPU3129+21−2151.3%−9.934.0%738
51.6%
 Critter 0.90 64-bit 4CPU3128+15−1564.5%−98.439.8%1619
61.5%
 Vajolet2 2.5 64-bit 4CPU3125+20−2048.3%+10.743.5%809
59.5%
 Arasan 20.1 64-bit 4CPU3121+24−2460.5%−68.142.3%562
51.9%
 Arasan 20.3 64-bit 4CPU3120+18−1843.2%+46.141.6%973
51.0%
 Ethereal 9.30 64-bit 4CPU3120+29−2954.5%−28.545.9%364
50.8%
 Defenchess 1.1f 64-bit 4CPU3119+14−1447.0%+20.441.6%1701
54.2%
 Hannibal 1.4b 64-bit 4CPU3118+13−1438.3%+80.138.0%1935
54.0%
 ChessBrainVB 3.70 4CPU3117+17−1750.5%−4.543.0%1060
56.7%
 Pedone 1.6 64-bit 4CPU3115+18−1849.5%+1.149.2%966
48.6%
 Wasp 3.0 64-bit 4CPU3115+29−2949.9%+1.655.6%340
55.9%
 Nemorino 4.00 64-bit 4CPU3113+23−2348.0%+13.442.6%587
68.3%
 Combusken 1.1.0 64-bit 4CPU3106+15−1556.8%−41.547.4%1423
50.2%
 Rodent III 0.276 64-bit 4CPU3106+58−6130.6%+121.343.3%90
50.8%
 Demolito 2018-10-29 64-bit 4CPU3105+16−1651.1%−7.443.8%1227
50.2%
 RubiChess 1.3 64-bit 4CPU3105+23−2358.7%−63.640.8%635
56.0%
44Monolith 2 64-bit 4CPU3103+17−1766.0%−105.841.3%1184
55.7%
45Amoeba 3.1 64-bit 4CPU3101+13−1350.2%−1.244.4%1909
60.5%
46PeSTO 2.210 64-bit 4CPU3099+14−1453.3%−22.537.5%1699
55.5%
 Senpai 1.0 64-bit 4CPU3097+16−1736.2%+98.335.7%1355
55.1%
 Pirarucu 2.9.5 64-bit 4CPU3095+17−1751.4%−9.947.0%1038
55.4%
 Stockfish 1.6s JA 64-bit 4CPU3094+13−1366.6%−115.738.6%2185
51.8%
 Pedone 1.5 64-bit 4CPU3093+16−1747.7%+15.045.4%1151
59.1%
 Laser 1.4 64-bit 4CPU3091+19−1948.4%+11.241.1%909
50.6%
47Rodent III 0.273 64-bit 4CPU3090+16−1747.0%+18.846.1%1131
50.6%
 Stockfish 1.6.3 64-bit 4CPU3090+13−1365.3%−107.638.0%2172
55.8%
 Ethereal 9.00 64-bit 4CPU3088+19−1950.5%−5.544.9%909
50.2%
48FabChess 1.15 64-bit 4CPU3088+21−2155.9%−36.541.1%700
53.6%
 Protector 1.5.0 64-bit 4CPU3087+14−1540.5%+64.237.3%1682
52.5%
 Arasan 20.0 64-bit 4CPU3085+59−6227.5%+142.341.6%89
54.1%
 chess22k 1.11 64-bit 4CPU3082+21−2143.7%+37.849.8%687
50.6%
 Vajolet2 2.4 64-bit 4CPU3081+17−1743.1%+47.339.6%1202
64.4%
 Marvin 3.5.0 64-bit 4CPU3077+18−1845.8%+26.243.9%944
53.4%
 Xiphos 0.1 64-bit 4CPU3076+20−2043.5%+40.341.4%804
54.6%
 Wasp 2.6 64-bit 4CPU3074+18−1943.8%+42.042.8%944
53.9%
49Gogobello 2.2 64-bit 4CPU3073+17−1651.5%−8.944.1%1133
47.5%
 Winter 0.7 64-bit 4CPU3073+14−1452.1%−13.239.8%1741
54.6%
 Bouquet 1.8 64-bit 4CPU3072+17−1732.2%+124.041.2%1256
55.6%
 Critter 0.80 64-bit 4CPU3070+17−1758.6%−57.340.6%1149
57.7%
 Vajolet2 2.2 64-bit 4CPU3068+18−1846.2%+22.542.7%1010
52.2%
 Hannibal 1.3 64-bit 4CPU3067+20−2140.3%+67.936.3%821
49.7%
 Pedone 1.4.1 64-bit 4CPU3067+20−2045.2%+27.549.3%768
63.6%
50Cheng 4.39 64-bit 4CPU3063+12−1244.5%+35.044.3%2378
53.7%
 Wasp 2.01 64-bit 4CPU3062+22−2252.2%−14.449.7%593
52.4%
 Nemorino 3.0 64-bit 4CPU3061+33−3343.6%+47.336.6%320
56.7%
51Topple 0.7.5 64-bit 4CPU3058+19−1948.2%+10.943.9%864
53.4%
52Bobcat 8.0 64-bit 4CPU3057+11−1147.3%+15.545.9%2786
56.2%
 Vajolet2 2.3 64-bit 4CPU3055+23−2350.6%−7.237.9%588
54.4%
53Crafty 25.2 64-bit 4CPU3053+15−1549.0%+6.439.5%1428
60.9%
 Amoeba 3.0 64-bit 4CPU3050+16−1651.6%−9.244.6%1192
51.4%
 Marvin 3.4.0 64-bit 4CPU3050+16−1654.2%−29.341.2%1307
52.4%
 Rodent III 0.232 64-bit 4CPU3049+19−1940.1%+67.836.3%945
63.4%
 Rodent IV 022 64-bit 4CPU3045+11−1142.2%+48.447.5%2638
49.4%
54Rybka 2.3.2a 64-bit 4CPU3045+11−1068.7%−132.437.0%3571
56.9%
 Combusken 1.0.0 64-bit 4CPU3043+16−1647.3%+17.343.0%1264
54.1%
 Topple 0.7.4 64-bit 4CPU3042+15−1551.5%−9.041.2%1458
59.6%
55Spike 1.4 Leiden 4CPU3040+8−841.2%+61.338.2%5347
57.9%
 Critter 0.70 64-bit 4CPU3037+24−2351.1%−6.843.6%567
55.0%
 Bobcat 7.6 64-bit 4CPU3036+19−2043.7%+39.646.5%820
54.2%
 Gogobello 2.1 64-bit 4CPU3034+24−2446.8%+19.441.4%539
50.9%
56Bagatur 2.1 64-bit 4CPU3033+25−2547.7%+15.146.9%475
57.7%
 Ethereal 8.81 64-bit 4CPU3030+22−2244.3%+36.440.8%682
49.9%
 Igel 2.1.0 64-bit 4CPU3030+20−2052.6%−26.443.3%759
51.7%
 Minic 1.35 64-bit 4CPU3029+30−2957.5%−44.641.1%355
50.9%
 Stockfish 1.5.1 64-bit 4CPU3029+14−1458.9%−61.038.6%1649
59.0%
57Spark 1.0 64-bit 4CPU3027+8−841.1%+63.139.9%5829
63.7%
58Alfil 15.8 64-bit 4CPU3023+20−2043.8%+39.939.5%795
61.5%
 FabChess 1.14 64-bit 4CPU3019+17−1752.2%−13.245.4%1086
53.8%
59EXchess 7.97b 64-bit 4CPU3018+14−1445.6%+29.738.6%1636
63.9%
 Nemorino 2.00 64-bit 4CPU3013+25−2543.2%+43.740.8%500
57.6%
 Gogobello 2.0 64-bit 4CPU3010+14−1447.2%+17.238.3%1725
60.4%
60Asymptote 0.8 64-bit 4CPU3007+18−1849.7%+1.037.3%1005
53.7%
 Rodent III 0.210 64-bit 4CPU3005+32−3233.4%+109.737.3%332
51.4%
 Winter 0.6 64-bit 4CPU3004+23−2353.8%−24.239.0%592
53.2%
61Invictus r305 64-bit 4CPU3003+13−1348.4%+10.145.3%1857
50.2%
 Rybka 2.2 64-bit 4CPU3003+12−1258.3%−63.141.2%2396
51.6%
 Demolito 2017-08-26 64-bit 4CPU3002+23−2336.1%+97.633.7%644
55.7%
 Topple 0.7.2 64-bit 4CPU2999+34−3464.8%−100.832.9%304
57.5%
62Scorpio 2.8 64-bit 4CPU2995+17−1842.4%+50.536.8%1101
62.7%
63Tucano 8.00 64-bit 4CPU2991+21−2149.5%+1.942.2%728
51.4%
 Tucano 7.00 64-bit 4CPU2990+18−1841.4%+57.241.2%1035
53.5%
 Spark 0.4 64-bit 4CPU2989+14−1446.6%+24.041.5%1614
55.5%
64The Baron 3.44 64-bit 4CPU2988+16−1643.0%+46.241.0%1219
65.2%
 Asymptote 0.7 64-bit 4CPU2983+19−1943.1%+44.038.9%909
51.3%
 Scorpio 2.7.9 64-bit 4CPU2982+25−2545.8%+27.236.9%520
60.2%
65Gaviota 1.0 64-bit 4CPU2979+13−1347.4%+16.538.0%2105
52.5%
66Weiss 1.0 64-bit 4CPU2978+30−3049.0%+5.438.0%353
52.1%
 Stockfish 1.4 64-bit 4CPU2977+15−1553.9%−30.535.2%1596
58.0%
 Rodent III 0.172 64-bit 4CPU2974+23−2341.8%+54.134.1%639
54.5%
 Bagatur 2.0 64-bit 4CPU2972+16−1645.8%+25.142.7%1261
48.7%
 Protector 1.4.0 64-bit 4CPU2972+13−1332.3%+130.033.6%2343
60.4%
 Spark 0.3 64-bit 4CPU2970+12−1247.4%+16.541.7%2237
55.5%
67Counter 3.4 64-bit 4CPU2968+18−1852.9%−18.440.6%948
54.2%
 Topple 0.7.3 64-bit 4CPU2967+30−3139.9%+63.143.2%338
56.6%
 Protector 1.3.5 64-bit 4CPU2963+27−2736.7%+88.939.6%455
50.5%
 Spark 0.3a 64-bit 4CPU2963+18−1744.6%+35.838.2%1093
48.8%
68Toga II 4.0 64-bit 4CPU2963+20−2036.8%+94.532.8%848
60.3%
 FabChess 1.13 64-bit 4CPU2959+19−1855.6%−36.541.3%941
70.1%
69Thinker 5.4c Inert 64-bit 4CPU2954+8−842.7%+49.235.3%5353
57.0%
 Protector 1.3.4 64-bit 4CPU2953+12−1340.3%+64.441.0%2122
64.6%
 Bagatur 1.9 64-bit 4CPU2947+23−2338.9%+73.338.5%615
53.1%
 Winter 0.5 64-bit 4CPU2946+22−2256.5%−43.536.2%650
54.1%
 The Baron 3.43 64-bit 4CPU2944+25−2550.1%+1.437.0%506
57.5%
 Marvin 3.3.2 64-bit 4CPU2941+20−2053.8%−25.841.4%811
59.5%
70DisasterArea 1.65 64-bit 4CPU2938+14−1444.9%+34.139.7%1740
50.5%
 Tucano 7.05 64-bit 4CPU2938+30−3032.2%+123.837.7%382
58.2%
 Asymptote 0.6.3 64-bit 4CPU2934+25−2554.5%−29.336.8%506
57.3%
 Toga II 3.0 4CPU2931+17−1725.3%+196.228.5%1459
60.6%
 Fruit Reloaded 3.2.1 64-bit 4CPU2928+20−2039.3%+71.536.9%875
50.5%
 Thinker 5.4a Inert 64-bit 4CPU2927+13−1350.9%−10.435.3%2096
65.8%
 Thinker 5.3b Inert 64-bit 4CPU2923+15−1545.9%+28.638.1%1468
74.4%
71Glaurung 2.2 64-bit 4CPU2917+11−1149.7%−0.436.6%2918
65.2%
 Critter 0.60 64-bit 4CPU2912+23−2337.3%+90.034.5%649
53.7%
72‑73Bright 0.4a 4CPU2911+11−1142.4%+50.733.9%3023
49.7%
72‑73MinkoChess 1.3 64-bit 4CPU2911+17−1746.1%+24.937.4%1217
61.2%
 Monolith 1.0 64-bit 4CPU2908+16−1648.9%+5.643.4%1189
56.4%
 Bright 0.5c 4CPU2906+14−1437.4%+86.735.8%1858
55.7%
 Toga II 1.4 beta5c 4CPU2905+9−935.7%+105.033.9%5355
53.2%
 Marvin 3.2.0 64-bit 4CPU2904+22−2250.5%−3.041.5%672
49.6%
 Minic 0.98 64-bit 4CPU2904+28−2865.3%−105.730.1%438
52.2%
74Cheese 2.1 64-bit 4CPU2903+15−1548.3%+10.940.5%1421
60.0%
 Glaurung 2.1 64-bit 4CPU2901+11−1245.9%+28.635.7%2686
52.6%
 Toga II 1.4.1SE 4CPU2900+11−1144.9%+37.535.8%3128
52.1%
 Thinker 5.4d Inert 64-bit 4CPU2897+98−10045.3%+31.034.4%32
51.1%
 Winter 0.4a 64-bit 4CPU2896+26−2556.1%−40.738.5%488
67.1%
 Cheese 2.0 64-bit 4CPU2888+22−2245.9%+27.337.7%636
50.1%
 RofChade 1.0 64-bit 4CPU2888+21−2146.5%+23.132.4%785
93.4%
75Loop 13.6 (Loop 2007) 64-bit 4CPU2868+16−1643.8%+40.339.1%1225
51.9%
76Tornado 8.0 64-bit 4CPU2867+15−1541.7%+56.231.0%1489
69.4%
 Glaurung 2.0.1 64-bit 4CPU2862+13−1341.3%+60.435.0%2227
53.5%
 Igel 1.8.2 64-bit 4CPU2860+31−3147.8%+14.330.2%348
61.3%
 Igel 1.9.0 64-bit 4CPU2855+25−2542.8%+45.739.1%491
51.8%
 Bright 0.3a 4CPU2854+14−1443.7%+40.834.6%1756
55.7%
 Minic 0.47 64-bit 4CPU2851+37−3670.3%−136.826.5%291
56.9%
 Gogobello 1.4 64-bit 4CPU2847+24−2449.2%+5.635.6%579
60.0%
77BugChess2 1.9 64-bit 4CPU2843+18−1850.0%−2.032.6%1034
76.1%
 Igel 1.5.1 64-bit 4CPU2831+30−2957.8%−55.526.0%400
73.5%
 Topple 0.5.0 64-bit 4CPU2820+18−1846.3%+26.130.8%1098
54.7%
 Winter 0.3 64-bit 4CPU2818+24−2446.7%+24.128.3%618
63.4%
 Bright 0.2c 4CPU2813+17−1735.5%+101.830.1%1244
51.8%
 Arminius 2018-12-23 64-bit 4CPU2811+97−11023.7%+188.021.1%38
58.9%
78Shield 2.1 64-bit 4CPU2798+21−2144.2%+40.326.8%809
57.1%
 ECE X3 64-bit 4CPU2792+63−6634.5%+102.228.6%84
51.1%
79Fridolin 3.10 64-bit 4CPU2791+23−2346.6%+24.031.2%629
67.6%
 Asymptote 0.5 64-bit 4CPU2783+28−2853.1%−22.032.5%421
77.8%
 Glaurung 1.2.1 32-bit 4CPU2770+15−1543.2%+45.933.8%1495
77.9%
 Fridolin 3.00 64-bit 4CPU2756+33−3267.7%−121.828.7%345
49.7%
 Minic 0.65 64-bit 4CPU2756+24−2445.2%+50.723.4%640
76.8%
 Crafty 23.0 64-bit 4CPU2745+17−1728.1%+157.728.1%1436
85.1%
 Scorpio 2.0 32-bit 4CPU2731+20−2029.1%+154.229.4%1005
72.7%
 Scorpio 2.1 64-bit 4CPU2723+17−1727.5%+174.123.2%1495
93.5%
 Minic 0.40 64-bit 4CPU2694+34−3368.0%−131.523.7%367
79.6%
 Topple 0.3.4 64-bit 4CPU2675+31−3167.6%−129.521.3%400
51.3%
80Pharaon 3.5.1 4CPU2674+24−2441.7%+58.228.9%634
62.3%
 Gaviota 0.83 64-bit 4CPU2669+19−1962.2%−90.224.9%1019
81.4%
81Dorky 4.8 64-bit 4CPU2653+30−2956.1%−39.233.3%375
89.3%
82Detroid 1.0.1 64-bit 4CPU2626+31−3150.4%−2.329.4%344
99.6%
 Arasan 11.3 64-bit 4CPU2575+22−2312.5%+339.313.0%1386
95.0%
83Jumbo 0.6.107 64-bit 4CPU2547+23−2350.0%+1.125.5%650
53.4%
 Jumbo 0.7.0 64-bit 4CPU2546+17−1746.2%+27.325.4%1255
77.3%
 Topple 0.3.1 64-bit 4CPU2532+32−3243.1%+49.622.9%341
98.1%
84Nemeton 1.81 4CPU2490+24−2451.1%−7.424.5%600
75.6%
 Jumbo 0.6.66 64-bit 4CPU2477+27−2743.5%+46.123.3%477
57.4%
 Nemeton 1.7 4CPU2473+30−3149.1%+6.624.4%377
95.2%
85Myrddin 0.87 64-bit 4CPU2439+26−2650.2%−1.625.7%525
98.3%
86Halogen 5 64-bit 4CPU2408+15−1538.8%+80.024.4%1583
96.3%
 Invictus r228 64-bit 4CPU2375+33−3256.6%−47.924.2%335
100.0%
 Halogen 4 64-bit 4CPU2281+26−2747.4%+18.022.8%508
100.0%
87Embla 2.0.0 64-bit 4CPU1928+32−3321.5%+221.119.6%419
 

Results matrix

Free multi-CPU engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.25.1 t40-1541 RTX20803642 81.5 − 75.5
+21−15=121
−6
32.5 − 15.5
+19−2=27
+15
  78 − 21
+59−2=38
−21
84.5 − 15.5
+70−1=29
+37
     
2Stockfish+NNUE 150720 64-bit 4CPU362575.5 − 81.5
+15−21=121
+6
 99.5 − 56.5
+48−5=103
+6
20 − 5
+15−0=10
+40
 21.5 − 3.5
+18−0=7
+71
21 − 4
+17−0=8
+42
  21.5 − 3.5
+18−0=7
+7
22 − 3
+19−0=6
+28
21.5 − 2.5
+19−0=5
+52
3Allie 0.5 nn49921 RTX2080355615.5 − 32.5
+2−19=27
−15
56.5 − 99.5
+5−48=103
−6
    40.5 − 18.5
+26−4=29
−18
     
4Ethereal 12.25 64-bit 4CPU3469 5 − 20
+0−15=10
−40
   36.5 − 28.5
+19−11=35
−4
37.5 − 27.5
+14−4=47
−1
72.5 − 45.5
+38−11=69
+17
40.5 − 24.5
+21−5=39
−2
 19 − 10
+10−1=18
−22
 
5Komodo 10 64-bit 4CPU3429            
6Xiphos 0.6 64-bit 4CPU342921 − 78
+2−59=38
+21
3.5 − 21.5
+0−18=7
−71
 28.5 − 36.5
+11−19=35
+4
  64 − 50
+26−12=76
+29
56 − 62
+22−28=68
−20
20.5 − 16.5
+8−4=25
0
68 − 49
+32−13=72
−18
19 − 10
+11−2=16
+19
65.5 − 45.5
+30−10=71
−24
7Fire 7.1 64-bit 4CPU342715.5 − 84.5
+1−70=29
−37
4 − 21
+0−17=8
−42
18.5 − 40.5
+4−26=29
+18
27.5 − 37.5
+4−14=47
+1
 50 − 64
+12−26=76
−29
 60.5 − 57.5
+22−19=77
+2
17 − 20
+6−9=22
−51
70 − 39
+39−8=62
+20
19.5 − 10.5
+12−3=15
+22
72.5 − 38.5
+39−5=67
+14
8SlowChess Blitz Classic 2.2 64-bit 4CPU3422   45.5 − 72.5
+11−38=69
−17
 62 − 56
+28−22=68
+20
57.5 − 60.5
+19−22=77
−2
 63 − 55
+35−27=56
−4
67.5 − 50.5
+31−14=73
−16
15.5 − 13.5
+9−7=13
−39
72.5 − 46.5
+37−11=71
−5
9RofChade 2.3 64-bit 4CPU3397   24.5 − 40.5
+5−21=39
+2
 16.5 − 20.5
+4−8=25
0
20 − 17
+9−6=22
+51
55 − 63
+27−35=56
+4
 21 − 16
+6−1=30
0
16.5 − 13.5
+8−5=17
−6
57 − 54
+22−19=70
−33
10Laser 1.7 64-bit 4CPU3365 3.5 − 21.5
+0−18=7
−7
   49 − 68
+13−32=72
+18
39 − 70
+8−39=62
−20
50.5 − 67.5
+14−31=73
+16
16 − 21
+1−6=30
0
 16 − 14
+8−6=16
+19
59.5 − 51.5
+20−12=79
+8
11RubiChess 1.7.3 64-bit 4CPU3360 3 − 22
+0−19=6
−28
 10 − 19
+1−10=18
+22
 10 − 19
+2−11=16
−19
10.5 − 19.5
+3−12=15
−22
13.5 − 15.5
+7−9=13
+39
13.5 − 16.5
+5−8=17
+6
14 − 16
+6−8=16
−19
 17 − 13
+8−4=18
+32
12Booot 6.4 64-bit 4CPU3355 2.5 − 21.5
+0−19=5
−52
   45.5 − 65.5
+10−30=71
+24
38.5 − 72.5
+5−39=67
−14
46.5 − 72.5
+11−37=71
+5
54 − 57
+19−22=70
+33
51.5 − 59.5
+12−20=79
−8
13 − 17
+4−8=18
−32
 
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 multi-CPU engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.25.1 t40-1541 RTX20803642 93.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish+NNUE 150720 64-bit 4CPU36256.2 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Allie 0.5 nn49921 RTX208035560.00.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Ethereal 12.25 64-bit 4CPU34690.00.00.0 99.8100.0100.0100.0100.0100.0100.0100.0
5Komodo 10 64-bit 4CPU34290.00.00.00.2 50.160.072.999.5100.0100.0100.0
6Xiphos 0.6 64-bit 4CPU34290.00.00.00.049.9 62.676.999.9100.0100.0100.0
7Fire 7.1 64-bit 4CPU34270.00.00.00.040.037.4 70.299.8100.0100.0100.0
8SlowChess Blitz Classic 2.2 64-bit 4CPU34220.00.00.00.027.123.129.8 98.9100.0100.0100.0
9RofChade 2.3 64-bit 4CPU33970.00.00.00.00.50.10.21.1 99.998.7100.0
10Laser 1.7 64-bit 4CPU33650.00.00.00.00.00.00.00.00.1 63.491.1
11RubiChess 1.7.3 64-bit 4CPU33600.00.00.00.00.00.00.00.01.336.6 64.1
12Booot 6.4 64-bit 4CPU33550.00.00.00.00.00.00.00.00.08.935.9 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
Testing profile
  (Step: , Numbers: )

Results table
Performance table
Score table
LOS table
Proportion of draws
Number of games
Number of connecting games
Percentage of connecting games
Score with common opponents
Score with all opponents
Performance with common opponents
Performance with all opponents
LOS with common opponents
LOS with all opponents

Maximum size of cross-tables (from 2 to 100):
Limit crosstables to engines in Elo range: to
Match length (Minimum number of games to highlight with color):

Cross-tables show only best version of each engine
Sort cross-tables by:   Rating   Name
Highlight diagonal of cells wide. (0 to highlight everything)

Reference rating list:
Recalibrate:
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Created in 2005-2013 by CCRL team
Last games added on September 19, 2020