CCRL Blitz
Downloads and Statistics
October 17, 2020
Testing summary:
Total: 2'387'265 games
played by 2'826 programs

White wins: 919'531 (38.5%)
Black wins: 739'461 (31.0%)
Draws: 728'273 (30.5%)
White score: 53.8%

Free 4-CPU engines

Comparing 319 engines!
87 best versions of selected engines played 25958 games with each other

CCRL Blitz Rating List — Free 4-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 October 17, 2020 with Bayeselo based on 2'387'265 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 RTX20803644+17−1765.6%−104.357.9%1089 
94.3%
2Stockfish+NNUE 150720 64-bit 4CPU3628+14−1461.9%−81.563.8%1546
77.9%
 Lc0 0.23.1 w42850 RTX20803620+13−1362.1%−74.067.8%1789
98.7%
 Stockfish 2019-10-09 64-bit 4CPU3602+11−1166.7%−108.855.6%2753
55.8%
 Stockfish 11 64-bit 4CPU3601+13−1361.6%−76.660.2%1739
64.8%
 Lc0 0.22.0 w49921 RTX20803597+15−1563.8%−82.265.5%1292
91.1%
 Allie 0.5 nn42850 RTX20803572+33−3253.6%−24.365.2%253
73.7%
3Allie 0.5 nn49921 RTX20803561+12−1246.2%+13.968.1%1848
93.6%
 Stockfish 10 64-bit 4CPU3548+11−1167.1%−109.855.5%2680
62.7%
 Stockfish 9 64-bit 4CPU3545+12−1274.1%−182.744.7%2605
80.3%
 SugaR XPrO 1.4 64-bit 4CPU3534+24−2373.3%−174.647.8%640
56.3%
 Stockfish 130118 64-bit 4CPU3531+30−2959.5%−63.865.7%315
57.1%
 SugaR XPrO 1.2 64-bit 4CPU3528+16−1567.0%−127.054.9%1306
62.7%
 asmFish 191017 64-bit 4CPU3525+17−1765.6%−113.458.9%1080
89.7%
 ShashChess 6.0 64-bit 4CPU3505+24−2470.4%−135.852.0%550
62.1%
 SugaR XPrO 1.3 64-bit 4CPU3500+24−2450.3%−16.667.4%481
69.7%
 Stockfish 8 64-bit 4CPU3493+11−1169.4%−138.749.0%2734
96.6%
4Ethereal 12.25 64-bit 4CPU3470+21−2147.8%+14.260.1%627
60.4%
 Ethereal 12.50 64-bit 4CPU3466+17−1750.1%−0.667.4%898
84.6%
 Stockfish 160716 64-bit 4CPU3454+14−1379.9%−217.035.3%2345
84.7%
 Ethereal 12.00 64-bit 4CPU3443+15−1547.9%+14.059.3%1333
56.9%
 Stockfish 200516 64-bit 4CPU3441+18−1880.7%−221.434.3%1272
82.6%
5Xiphos 0.6 64-bit 4CPU3430+11−1141.0%+59.956.5%2661
56.5%
6Komodo 10 64-bit 4CPU3429+14−1475.8%−185.236.9%1875
54.3%
 Ethereal 11.75 64-bit 4CPU3427+18−1844.6%+37.555.1%966
52.8%
7Fire 7.1 64-bit 4CPU3427+8−844.3%+36.652.3%5158
50.7%
 Stockfish 7 64-bit 4CPU3426+20−1978.1%−200.238.0%1008
59.5%
8SlowChess Blitz Classic 2.2 64-bit 4CPU3423+14−1352.8%−17.757.2%1633
61.9%
 Stockfish 251115 64-bit 4CPU3420+17−1770.9%−144.843.4%1208
63.9%
 Ethereal 11.50 64-bit 4CPU3416+13−1444.8%+35.553.9%1682
48.2%
9Nemorino 6.00 64-bit 4CPU3416+31−3166.5%−102.248.3%321
88.4%
 Xiphos 0.5 64-bit 4CPU3396+14−1442.9%+47.147.9%1746
54.2%
10RofChade 2.3 64-bit 4CPU3394+18−1842.9%+52.853.6%991
58.7%
 Ethereal 11.25 64-bit 4CPU3392+14−1447.0%+18.259.4%1545
47.9%
 Stockfish 6 64-bit 4CPU3392+15−1567.7%−118.249.8%1485
79.3%
 Ethereal 11.00 64-bit 4CPU3383+17−1752.2%−15.355.7%1012
54.2%
 Komodo 9 64-bit 4CPU3381+16−1672.7%−150.943.9%1400
91.2%
 Stockfish 5 64-bit 4CPU3366+16−1671.8%−146.143.0%1380
53.3%
11Laser 1.7 64-bit 4CPU3365+9−1045.3%+32.751.6%3815
62.3%
12RubiChess 1.7.3 64-bit 4CPU3360+28−2845.7%+29.549.2%380
61.5%
13Booot 6.4 64-bit 4CPU3356+13−1345.6%+33.554.8%1859
58.8%
14Defenchess 2.2 64-bit 4CPU3354+12−1246.3%+28.252.6%2298
56.9%
 Komodo 8 64-bit 4CPU3352+16−1668.0%−120.544.7%1330
64.0%
 Fire 6.1 64-bit 4CPU3348+15−1544.9%+33.644.1%1568
61.7%
 RofChade 2.202 64-bit 4CPU3345+15−1551.1%−3.356.5%1274
55.6%
15Fizbo 2 64-bit 4CPU3344+9−941.5%+53.146.9%4177
86.2%
16Andscacs 0.95 64-bit 4CPU3336+10−1151.0%−5.349.7%2966
57.2%
 Fire 5 64-bit 4CPU3334+15−1553.3%−17.651.4%1390
83.5%
 Booot 6.3.1 64-bit 4CPU3325+12−1245.6%+29.354.9%2201
51.8%
 Andscacs 0.94 64-bit 4CPU3324+19−1944.0%+39.251.0%855
53.3%
 Xiphos 0.4 64-bit 4CPU3323+18−1847.2%+17.546.1%1038
59.7%
 Komodo 7a 64-bit 4CPU3320+16−1561.5%−76.045.6%1334
54.1%
 Fizbo 1.9 64-bit 4CPU3319+14−1450.5%−1.942.4%1762
68.4%
 Andscacs 0.92 64-bit 4CPU3311+28−2757.3%−46.538.9%460
54.1%
 Stockfish DD 64-bit 4CPU3310+15−1566.6%−123.042.3%1559
53.8%
 RofChade 2.1 64-bit 4CPU3308+20−2046.1%+23.149.5%760
69.5%
 Andscacs 0.921 64-bit 4CPU3301+19−1864.7%−103.639.1%1017
54.8%
 Andscacs 0.93 64-bit 4CPU3300+17−1745.6%+34.642.5%1215
74.7%
 RubiChess 1.6.1.1 64-bit 4CPU3292+14−1449.2%+4.452.5%1572
63.0%
 Defenchess 2.1 64-bit 4CPU3288+19−1944.6%+38.644.0%941
51.0%
17Schooner 2.1 64-bit 4CPU3288+16−1650.3%−3.857.3%1079
52.8%
18Arasan 22.1 64-bit 4CPU3287+20−2048.7%−11.348.4%790
51.6%
 Komodo TCEC 64-bit 4CPU3286+16−1664.9%−111.341.2%1429
83.6%
 Schooner 2.2 64-bit 4CPU3277+11−1144.5%+32.356.3%2608
57.9%
 Andscacs 0.91 64-bit 4CPU3275+16−1644.2%+40.947.2%1254
47.0%
 Schooner 2.0.34 64-bit 4CPU3275+16−1640.8%+54.645.2%1332
53.7%
 Laser 1.6 64-bit 4CPU3274+16−1747.5%+21.052.5%1116
53.7%
 Andscacs 0.90 64-bit 4CPU3273+18−1852.0%−7.549.1%988
51.5%
 Arasan 22.0 64-bit 4CPU3273+14−1447.3%+16.551.1%1617
62.8%
 Stockfish 4 64-bit 4CPU3269+17−1769.2%−145.937.0%1346
65.3%
19Houdini 1.5a 64-bit 4CPU3264+16−1574.8%−186.232.0%1649
54.8%
 RubiChess 1.6 64-bit 4CPU3263+16−1646.4%+18.549.2%1216
62.8%
 Andscacs 0.88 64-bit 4CPU3259+17−1741.0%+61.546.8%1104
49.9%
20Gull 3 64-bit 4CPU3259+9−946.1%+25.344.9%4857
57.2%
 Gull 2.8b 64-bit 4CPU3257+21−2170.1%−147.634.7%849
51.9%
 Arasan 21.4 64-bit 4CPU3256+21−2144.6%+32.154.1%638
50.7%
 Booot 6.2 64-bit 4CPU3256+12−1243.4%+52.448.7%2107
53.0%
 Fire 4 64-bit 4CPU3255+10−1046.1%+24.849.7%3212
59.0%
21Pedone 2.0 64-bit 4CPU3254+14−1352.6%−13.951.8%1685
53.1%
22Wasp 4.0 64-bit 4CPU3252+24−2452.3%−11.751.6%490
53.6%
23Equinox 3.30 64-bit 4CPU3251+8−841.9%+54.250.5%6058
50.0%
 Komodo 6 64-bit 4CPU3251+19−1966.1%−116.940.7%998
65.4%
 Fizbo 1.8 64-bit 4CPU3246+14−1445.9%+31.242.5%1712
55.1%
 Arasan 21.3 64-bit 4CPU3245+24−2445.6%+26.851.6%494
50.0%
24Igel 2.5.0 64-bit 4CPU3245+24−2452.9%−18.151.0%492
51.7%
 Gull 2.3 64-bit 4CPU3244+17−1763.8%−101.843.5%1137
69.3%
 Andscacs 0.872 64-bit 4CPU3238+17−1747.3%+20.946.8%1101
47.6%
 Komodo 5.1 64-bit 4CPU3238+16−1566.6%−121.139.7%1503
57.0%
 Stockfish 3 64-bit 4CPU3236+19−1968.0%−133.638.5%1022
53.2%
 RofChade 2.0 64-bit 4CPU3235+17−1755.8%−41.049.9%1097
61.3%
25Critter 1.6a 64-bit 4CPU3233+7−747.1%+18.845.8%8172
75.0%
26Vajolet2 2.8 64-bit 4CPU3228+12−1247.0%+19.046.5%2243
52.4%
27Combusken 1.3.0 64-bit 4CPU3227+25−2552.1%−13.345.5%484
59.5%
28Hannibal 1.7 64-bit 4CPU3224+9−944.9%+34.747.0%3979
51.7%
 Gull 2.2 64-bit 4CPU3223+20−2067.9%−131.836.8%945
55.0%
29NirvanaChess 2.4 64-bit 4CPU3222+10−1049.4%+6.345.7%3418
54.2%
 Andscacs 0.86 64-bit 4CPU3221+17−1744.9%+35.542.7%1128
51.2%
 Stockfish 2.3.1 64-bit 4CPU3221+18−1859.5%−60.346.9%951
57.5%
 Equinox 3.20 64-bit 4CPU3215+52−5342.7%+48.348.6%109
49.8%
 Fire 3.0 64-bit 4CPU3215+17−1743.7%+38.747.5%1126
55.7%
30Demolito 2020-04-10 64-bit 4CPU3214+15−1547.3%+15.450.2%1345
53.4%
 Gull 3.1 64-bit 4CPU3213+18−1840.9%+68.043.6%1090
57.1%
 NirvanaChess 2.3 64-bit 4CPU3211+13−1439.0%+77.645.8%1832
57.2%
 Critter 1.2 64-bit 4CPU3209+17−1668.6%−132.539.9%1331
50.1%
 Demolito 2020-01-11 64-bit 4CPU3209+17−1659.0%−56.447.4%1143
61.3%
 Arasan 21.2 64-bit 4CPU3205+17−1752.2%−14.950.7%1031
80.5%
31BlackMamba 2.0 64-bit 4CPU3196+12−1242.3%+56.046.6%2426
48.5%
 Pedone 1.9 64-bit 4CPU3196+16−1650.0%−0.152.4%1076
57.2%
 Stockfish 2.1.1 64-bit 4CPU3194+15−1566.3%−113.141.2%1489
49.2%
32Texel 1.07 64-bit 4CPU3194+10−1050.0%+3.945.8%3130
56.7%
 Arasan 21.1 64-bit 4CPU3193+17−1751.3%−8.752.9%1015
55.6%
 Igel 2.4.0 64-bit 4CPU3191+19−1948.9%+7.649.8%817
51.6%
 RubiChess 1.5 64-bit 4CPU3190+25−2552.5%−16.542.8%479
52.5%
 Wasp 3.75 64-bit 4CPU3189+13−1352.8%−16.951.8%1799
59.7%
 Booot 6.1 64-bit 4CPU3187+15−1543.7%+44.344.7%1536
58.7%
 Vajolet2 2.6.1 64-bit 4CPU3184+15−1551.4%−7.456.8%1263
54.2%
 Fizbo 1.7 64-bit 4CPU3183+15−1541.9%+58.939.5%1498
57.1%
 NirvanaChess 2.2 64-bit 4CPU3181+16−1640.6%+68.843.4%1284
49.6%
33chess22k 1.14 64-bit 4CPU3181+13−1351.1%−7.150.4%1785
58.2%
 Nemorino 5.00 64-bit 4CPU3180+11−1151.4%−9.747.9%2763
57.4%
 Combusken 1.2.0 64-bit 4CPU3177+23−2352.0%−32.236.8%655
50.3%
34Senpai 2.0 64-bit 4CPU3177+10−1051.7%−11.445.9%3412
61.5%
35Elektro 1.2 64-bit 4CPU3174+16−1642.5%+54.646.5%1300
63.9%
 Laser 1.5 64-bit 4CPU3170+19−1950.3%+4.837.4%1000
52.4%
36‑37ChessBrainVB 3.74 4CPU3169+14−1454.2%−27.241.9%1596
52.1%
 Hannibal 1.5 64-bit 4CPU3169+13−1334.2%+112.339.3%2349
47.6%
36‑37iCE 4.0 64-bit 4CPU3169+12−1251.7%−11.248.2%2163
59.8%
 Stockfish 2.0.1 64-bit 4CPU3167+15−1466.8%−114.643.4%1647
71.7%
38Minic 2.33 64-bit 4CPU3159+20−2050.7%−4.140.6%801
50.3%
 Pedone 1.8 64-bit 4CPU3159+18−1849.0%+5.953.9%878
53.3%
 Igel 2.3.1 64-bit 4CPU3158+15−1461.4%−72.144.1%1511
55.6%
 Critter 1.01 64-bit 4CPU3157+16−1664.3%−101.438.1%1338
48.4%
 Texel 1.06 64-bit 4CPU3157+14−1542.2%+53.543.8%1558
49.0%
 chess22k 1.13 64-bit 4CPU3157+14−1449.7%+2.050.4%1521
55.6%
 Wasp 3.60 64-bit 4CPU3156+18−1843.4%+39.554.4%885
59.0%
 Sting SF 9 64-bit 4CPU3153+17−1750.4%−4.645.1%1137
49.5%
 Stockfish 1.9.1 64-bit 4CPU3153+12−1270.2%−141.238.3%2428
56.9%
 Wasp 3.50 64-bit 4CPU3151+18−1852.7%−18.746.8%965
55.4%
39Naum 4.6 64-bit 4CPU3150+10−1041.7%+61.340.0%4057
73.5%
 Arasan 20.4.1 64-bit 4CPU3143+18−1849.9%+0.040.8%974
53.5%
 Texel 1.05 64-bit 4CPU3142+14−1433.0%+125.235.4%2041
55.8%
 Stockfish 1.7.1 64-bit 4CPU3141+13−1368.1%−126.038.4%2052
52.8%
40Marvin 3.6.0 64-bit 4CPU3140+21−2143.8%+38.344.5%668
58.1%
 Minic 2.0 64-bit 4CPU3137+12−1246.1%+23.645.1%2099
49.5%
 Stockfish 1.8 64-bit 4CPU3137+16−1668.0%−124.238.4%1379
57.1%
 Pedone 1.7 64-bit 4CPU3135+18−1847.4%+17.042.7%1006
49.1%
 RubiChess 1.4 64-bit 4CPU3135+25−2547.9%+13.251.3%480
58.3%
41Pirarucu 3.3.5 64-bit 4CPU3132+18−1848.5%+9.744.1%948
60.1%
 Pirarucu 3.2.4 64-bit 4CPU3129+15−1547.3%+16.149.2%1280
50.4%
42Protector 1.9.0 64-bit 4CPU3129+9−947.1%+19.141.8%4968
55.8%
 Critter 0.90 64-bit 4CPU3128+15−1464.5%−99.339.8%1619
48.0%
43Winter 0.8 64-bit 4CPU3128+21−2151.3%−9.634.0%738
61.2%
 Vajolet2 2.5 64-bit 4CPU3124+20−2048.3%+11.143.5%809
59.5%
 Arasan 20.1 64-bit 4CPU3120+24−2360.5%−67.942.3%562
51.6%
 Arasan 20.3 64-bit 4CPU3119+18−1843.2%+46.541.6%973
52.6%
 Defenchess 1.1f 64-bit 4CPU3119+14−1447.0%+19.841.6%1701
49.4%
 Ethereal 9.30 64-bit 4CPU3119+29−2954.5%−28.245.9%364
53.4%
 Hannibal 1.4b 64-bit 4CPU3118+14−1438.3%+79.338.0%1935
54.0%
 ChessBrainVB 3.70 4CPU3116+17−1750.5%−4.243.0%1060
53.6%
 Wasp 3.0 64-bit 4CPU3115+29−2949.9%+1.155.6%340
51.4%
 Pedone 1.6 64-bit 4CPU3114+18−1849.5%+1.349.2%966
55.8%
 Nemorino 4.00 64-bit 4CPU3112+23−2348.0%+13.842.6%587
68.4%
 Combusken 1.1.0 64-bit 4CPU3105+15−1556.8%−41.247.4%1423
49.9%
 Rodent III 0.276 64-bit 4CPU3105+58−6130.6%+122.043.3%90
51.1%
 Demolito 2018-10-29 64-bit 4CPU3104+16−1651.1%−7.243.8%1227
50.4%
 RubiChess 1.3 64-bit 4CPU3104+23−2358.7%−63.440.8%635
56.0%
44Monolith 2 64-bit 4CPU3102+17−1766.0%−105.741.3%1184
55.3%
45Amoeba 3.1 64-bit 4CPU3100+13−1350.2%−1.044.4%1909
60.5%
46PeSTO 2.210 64-bit 4CPU3098+14−1453.3%−22.437.5%1699
55.6%
 Senpai 1.0 64-bit 4CPU3096+16−1636.2%+98.635.7%1355
55.2%
 Pirarucu 2.9.5 64-bit 4CPU3095+17−1751.4%−10.747.0%1038
56.5%
 Pedone 1.5 64-bit 4CPU3093+17−1747.7%+14.345.4%1151
48.6%
 Stockfish 1.6s JA 64-bit 4CPU3093+13−1366.6%−115.638.6%2185
60.6%
 Laser 1.4 64-bit 4CPU3090+19−1948.4%+11.441.1%909
50.6%
47Rodent III 0.273 64-bit 4CPU3090+17−1747.0%+18.146.1%1131
51.1%
 Stockfish 1.6.3 64-bit 4CPU3089+13−1365.3%−107.538.0%2172
55.5%
 Ethereal 9.00 64-bit 4CPU3088+19−1950.5%−6.344.9%909
50.3%
48FabChess 1.15 64-bit 4CPU3088+21−2155.9%−37.041.1%700
53.6%
 Protector 1.5.0 64-bit 4CPU3086+15−1540.5%+64.537.3%1682
52.1%
 Arasan 20.0 64-bit 4CPU3085+59−6227.5%+142.041.6%89
54.7%
 Vajolet2 2.4 64-bit 4CPU3081+17−1743.1%+46.639.6%1202
49.5%
 chess22k 1.11 64-bit 4CPU3081+21−2143.7%+38.549.8%687
63.5%
 Marvin 3.5.0 64-bit 4CPU3076+18−1845.8%+26.443.9%944
53.4%
 Xiphos 0.1 64-bit 4CPU3075+20−2043.5%+40.641.4%804
54.5%
 Wasp 2.6 64-bit 4CPU3073+18−1843.8%+42.342.8%944
52.3%
 Winter 0.7 64-bit 4CPU3073+14−1452.1%−14.239.8%1741
52.4%
49Gogobello 2.2 64-bit 4CPU3072+17−1751.5%−8.544.1%1133
51.8%
 Bouquet 1.8 64-bit 4CPU3071+17−1732.2%+124.441.2%1256
56.1%
 Critter 0.80 64-bit 4CPU3070+17−1758.6%−58.340.6%1149
58.6%
 Pedone 1.4.1 64-bit 4CPU3067+20−2045.2%+27.049.3%768
48.0%
 Vajolet2 2.2 64-bit 4CPU3067+18−1846.2%+23.042.7%1010
52.4%
 Hannibal 1.3 64-bit 4CPU3066+21−2140.3%+68.036.3%821
62.4%
50Cheng 4.39 64-bit 4CPU3063+12−1244.5%+34.344.3%2378
53.8%
 Wasp 2.01 64-bit 4CPU3061+23−2252.2%−14.349.7%593
52.2%
 Nemorino 3.0 64-bit 4CPU3060+33−3343.6%+47.536.6%320
56.8%
51Topple 0.7.5 64-bit 4CPU3057+19−1948.2%+11.243.9%864
53.4%
52Bobcat 8.0 64-bit 4CPU3056+11−1147.3%+15.745.9%2786
56.3%
 Vajolet2 2.3 64-bit 4CPU3054+23−2350.6%−7.037.9%588
54.4%
53Crafty 25.2 64-bit 4CPU3052+15−1549.0%+6.639.5%1428
61.0%
 Amoeba 3.0 64-bit 4CPU3049+16−1651.6%−8.844.6%1192
51.5%
 Marvin 3.4.0 64-bit 4CPU3049+16−1654.2%−29.141.2%1307
52.0%
 Rodent III 0.232 64-bit 4CPU3048+19−1940.1%+68.236.3%945
63.5%
 Rodent IV 022 64-bit 4CPU3044+11−1142.2%+48.747.5%2638
50.0%
54Rybka 2.3.2a 64-bit 4CPU3044+10−1168.7%−132.237.0%3571
56.7%
 Combusken 1.0.0 64-bit 4CPU3042+16−1647.3%+17.543.0%1264
54.1%
 Topple 0.7.4 64-bit 4CPU3041+15−1551.5%−8.741.2%1458
59.6%
55Spike 1.4 Leiden 4CPU3039+9−941.2%+61.538.2%5347
58.1%
 Critter 0.70 64-bit 4CPU3037+23−2351.1%−7.743.6%567
54.8%
 Bobcat 7.6 64-bit 4CPU3035+19−2043.7%+40.246.5%820
55.0%
56Bagatur 2.1 64-bit 4CPU3033+25−2547.7%+14.546.9%475
49.1%
 Gogobello 2.1 64-bit 4CPU3033+24−2446.8%+19.641.4%539
58.7%
 Ethereal 8.81 64-bit 4CPU3029+22−2244.3%+36.840.8%682
50.1%
 Igel 2.1.0 64-bit 4CPU3029+20−2052.6%−26.343.3%759
51.8%
 Minic 1.35 64-bit 4CPU3029+30−2957.5%−45.441.1%355
50.8%
 Stockfish 1.5.1 64-bit 4CPU3028+14−1458.9%−61.038.6%1649
58.9%
57Spark 1.0 64-bit 4CPU3026+8−841.1%+63.339.9%5829
63.5%
58Alfil 15.8 64-bit 4CPU3022+20−2043.8%+40.339.5%795
61.5%
 FabChess 1.14 64-bit 4CPU3018+17−1752.2%−13.045.4%1086
53.8%
59EXchess 7.97b 64-bit 4CPU3017+14−1445.6%+30.038.6%1636
64.0%
 Nemorino 2.00 64-bit 4CPU3012+25−2543.2%+43.940.8%500
57.7%
 Gogobello 2.0 64-bit 4CPU3009+14−1447.2%+17.438.3%1725
60.3%
60Asymptote 0.8 64-bit 4CPU3006+18−1849.7%+1.237.3%1005
53.5%
 Rodent III 0.210 64-bit 4CPU3004+32−3233.4%+109.937.3%332
51.8%
 Winter 0.6 64-bit 4CPU3003+23−2353.8%−24.039.0%592
53.5%
 Demolito 2017-08-26 64-bit 4CPU3002+23−2436.1%+97.033.7%644
48.6%
61Invictus r305 64-bit 4CPU3002+13−1348.4%+10.245.3%1857
50.4%
 Rybka 2.2 64-bit 4CPU3002+12−1258.3%−62.941.2%2396
57.7%
 Topple 0.7.2 64-bit 4CPU2998+34−3464.8%−100.632.9%304
57.1%
62Scorpio 2.8 64-bit 4CPU2995+17−1742.4%+49.936.8%1101
65.9%
63Tucano 7.00 64-bit 4CPU2990+18−1841.4%+56.541.2%1035
48.7%
 Tucano 8.00 64-bit 4CPU2990+21−2149.5%+2.042.2%728
54.7%
 Spark 0.4 64-bit 4CPU2988+14−1446.6%+24.141.5%1614
55.3%
64The Baron 3.44 64-bit 4CPU2987+16−1643.0%+46.541.0%1219
65.3%
 Asymptote 0.7 64-bit 4CPU2982+19−1943.1%+44.238.9%909
51.3%
 Scorpio 2.7.9 64-bit 4CPU2981+25−2545.8%+27.536.9%520
60.2%
65Gaviota 1.0 64-bit 4CPU2978+13−1347.4%+16.938.0%2105
52.5%
66Weiss 1.0 64-bit 4CPU2977+30−3049.0%+5.838.0%353
52.1%
 Stockfish 1.4 64-bit 4CPU2976+15−1553.9%−30.235.2%1596
57.9%
 Rodent III 0.172 64-bit 4CPU2973+23−2341.8%+54.334.1%639
53.9%
 Protector 1.4.0 64-bit 4CPU2972+13−1332.3%+129.233.6%2343
51.1%
 Bagatur 2.0 64-bit 4CPU2971+16−1645.8%+25.242.7%1261
58.0%
 Spark 0.3 64-bit 4CPU2969+12−1247.4%+16.641.7%2237
55.6%
67Counter 3.4 64-bit 4CPU2968+18−1852.9%−19.340.6%948
54.1%
 Topple 0.7.3 64-bit 4CPU2966+30−3039.9%+63.243.2%338
56.8%
68Toga II 4.0 64-bit 4CPU2963+20−2136.8%+93.932.8%848
50.6%
 Protector 1.3.5 64-bit 4CPU2962+27−2736.7%+89.039.6%455
50.6%
 Spark 0.3a 64-bit 4CPU2962+17−1844.6%+36.038.2%1093
60.7%
 FabChess 1.13 64-bit 4CPU2958+18−1855.6%−36.641.3%941
69.2%
69Thinker 5.4c Inert 64-bit 4CPU2953+9−942.7%+49.435.3%5353
57.0%
 Protector 1.3.4 64-bit 4CPU2952+13−1340.3%+64.641.0%2122
64.6%
 Bagatur 1.9 64-bit 4CPU2947+23−2338.9%+72.438.5%615
53.4%
 Winter 0.5 64-bit 4CPU2945+23−2256.5%−43.336.2%650
54.1%
 The Baron 3.43 64-bit 4CPU2944+25−2550.1%+0.637.0%506
57.4%
 Marvin 3.3.2 64-bit 4CPU2941+20−2053.8%−26.741.4%811
59.4%
70DisasterArea 1.65 64-bit 4CPU2938+14−1444.9%+33.439.7%1740
50.4%
 Tucano 7.05 64-bit 4CPU2937+30−3032.2%+124.237.7%382
58.7%
 Asymptote 0.6.3 64-bit 4CPU2933+25−2554.5%−29.336.8%506
56.7%
 Toga II 3.0 4CPU2930+17−1725.3%+196.428.5%1459
60.6%
 Fruit Reloaded 3.2.1 64-bit 4CPU2927+19−2039.3%+72.036.9%875
50.7%
 Thinker 5.4a Inert 64-bit 4CPU2927+13−1350.9%−11.335.3%2096
65.8%
 Thinker 5.3b Inert 64-bit 4CPU2923+15−1545.9%+27.838.1%1468
74.4%
71Glaurung 2.2 64-bit 4CPU2917+11−1149.7%−1.236.6%2918
65.1%
 Critter 0.60 64-bit 4CPU2912+23−2337.3%+89.134.5%649
53.7%
72‑73Bright 0.4a 4CPU2910+11−1142.4%+50.933.9%3023
49.8%
72‑73MinkoChess 1.3 64-bit 4CPU2910+16−1646.1%+25.137.4%1217
61.6%
 Monolith 1.0 64-bit 4CPU2907+16−1648.9%+5.743.4%1189
55.9%
 Bright 0.5c 4CPU2905+14−1437.4%+86.835.8%1858
55.7%
 Toga II 1.4 beta5c 4CPU2904+9−935.7%+105.233.9%5355
53.9%
 Marvin 3.2.0 64-bit 4CPU2903+22−2250.5%−3.041.5%672
49.9%
 Minic 0.98 64-bit 4CPU2903+29−2865.3%−105.830.1%438
51.6%
74Cheese 2.1 64-bit 4CPU2902+15−1548.3%+11.040.5%1421
59.6%
 Glaurung 2.1 64-bit 4CPU2900+11−1145.9%+28.735.7%2686
52.6%
 Toga II 1.4.1SE 4CPU2899+11−1144.9%+37.735.8%3128
52.1%
 Thinker 5.4d Inert 64-bit 4CPU2897+98−10045.3%+30.034.4%32
51.4%
 Winter 0.4a 64-bit 4CPU2895+26−2556.1%−40.938.5%488
66.8%
 RofChade 1.0 64-bit 4CPU2888+21−2146.5%+22.232.4%785
50.2%
 Cheese 2.0 64-bit 4CPU2887+22−2345.9%+27.337.7%636
92.0%
75Loop 13.6 (Loop 2007) 64-bit 4CPU2867+16−1643.8%+40.439.1%1225
52.0%
76Tornado 8.0 64-bit 4CPU2866+16−1641.7%+56.431.0%1489
69.3%
 Glaurung 2.0.1 64-bit 4CPU2861+13−1341.3%+60.535.0%2227
54.2%
 Igel 1.8.2 64-bit 4CPU2859+31−3147.8%+13.930.2%348
60.9%
 Igel 1.9.0 64-bit 4CPU2854+25−2542.8%+45.539.1%491
51.5%
 Bright 0.3a 4CPU2853+14−1443.7%+40.934.6%1756
55.9%
 Minic 0.47 64-bit 4CPU2850+37−3670.3%−136.626.5%291
57.3%
 Gogobello 1.4 64-bit 4CPU2846+24−2449.2%+5.535.6%579
59.2%
77BugChess2 1.9 64-bit 4CPU2842+18−1850.0%−1.832.6%1034
76.3%
 Igel 1.5.1 64-bit 4CPU2830+30−2957.8%−55.426.0%400
73.5%
 Topple 0.5.0 64-bit 4CPU2819+18−1846.3%+26.130.8%1098
55.3%
 Winter 0.3 64-bit 4CPU2817+24−2446.7%+24.128.3%618
62.5%
 Bright 0.2c 4CPU2812+17−1735.5%+101.930.1%1244
51.9%
 Arminius 2018-12-23 64-bit 4CPU2810+97−11023.7%+188.021.1%38
59.1%
78Shield 2.1 64-bit 4CPU2797+21−2144.2%+40.126.8%809
56.6%
 ECE X3 64-bit 4CPU2791+63−6634.5%+102.228.6%84
51.3%
79Fridolin 3.10 64-bit 4CPU2790+23−2346.6%+24.031.2%629
67.4%
 Asymptote 0.5 64-bit 4CPU2782+28−2853.1%−22.032.5%421
77.6%
 Glaurung 1.2.1 32-bit 4CPU2769+15−1543.2%+46.033.8%1495
78.2%
 Fridolin 3.00 64-bit 4CPU2755+33−3267.7%−121.828.7%345
49.7%
 Minic 0.65 64-bit 4CPU2755+24−2445.2%+50.723.4%640
76.5%
 Crafty 23.0 64-bit 4CPU2744+17−1728.1%+157.928.1%1436
85.1%
 Scorpio 2.0 32-bit 4CPU2730+19−2029.1%+154.329.4%1005
72.7%
 Scorpio 2.1 64-bit 4CPU2723+17−1727.5%+173.323.2%1495
93.5%
 Minic 0.40 64-bit 4CPU2693+34−3368.0%−131.323.7%367
79.6%
 Topple 0.3.4 64-bit 4CPU2674+31−3167.6%−129.321.3%400
51.6%
80Pharaon 3.5.1 4CPU2673+23−2441.7%+58.428.9%634
62.0%
 Gaviota 0.83 64-bit 4CPU2669+19−1962.2%−91.024.9%1019
81.4%
81Dorky 4.8 64-bit 4CPU2653+30−2956.1%−40.033.3%375
89.4%
82Detroid 1.0.1 64-bit 4CPU2625+31−3150.4%−2.129.4%344
99.6%
 Arasan 11.3 64-bit 4CPU2574+22−2312.5%+339.513.0%1386
95.1%
83Jumbo 0.6.107 64-bit 4CPU2547+23−2350.0%+0.025.5%650
53.0%
 Jumbo 0.7.0 64-bit 4CPU2545+17−1746.2%+27.525.4%1255
77.3%
 Topple 0.3.1 64-bit 4CPU2532+32−3243.1%+48.722.9%341
98.1%
84Nemeton 1.81 4CPU2489+24−2451.1%−7.224.5%600
75.7%
 Jumbo 0.6.66 64-bit 4CPU2476+27−2843.5%+46.323.3%477
57.2%
 Nemeton 1.7 4CPU2472+30−3049.1%+6.824.4%377
95.3%
85Myrddin 0.87 64-bit 4CPU2438+26−2650.2%−1.525.7%525
98.2%
86Halogen 5 64-bit 4CPU2407+15−1538.8%+80.224.4%1583
96.3%
 Invictus r228 64-bit 4CPU2374+33−3256.6%−47.524.2%335
100.0%
 Halogen 4 64-bit 4CPU2280+26−2647.4%+18.522.8%508
100.0%
87Embla 2.0.0 64-bit 4CPU1928+32−3421.5%+220.919.6%419
 

Results matrix

Free 4-CPU engines (best versions only), top 12
#NameElo123456789101112
1Lc0 0.25.1 t40-1541 RTX20803644 81.5 − 75.5
+21−15=121
−5
32.5 − 15.5
+19−2=27
+18
 78 − 21
+59−2=38
−22
 84.5 − 15.5
+70−1=29
+35
     
2Stockfish+NNUE 150720 64-bit 4CPU362875.5 − 81.5
+15−21=121
+5
 99.5 − 56.5
+48−5=103
+8
20 − 5
+15−0=10
+38
21.5 − 3.5
+18−0=7
+69
 21 − 4
+17−0=8
+39
   21.5 − 3.5
+18−0=7
+4
22 − 3
+19−0=6
+25
3Allie 0.5 nn49921 RTX2080356115.5 − 32.5
+2−19=27
−18
56.5 − 99.5
+5−48=103
−8
    40.5 − 18.5
+26−4=29
−23
     
4Ethereal 12.25 64-bit 4CPU3470 5 − 20
+0−15=10
−38
  36.5 − 28.5
+19−11=35
−4
 37.5 − 27.5
+14−4=47
−2
72.5 − 45.5
+38−11=69
+17
 40.5 − 24.5
+21−5=39
−6
 19 − 10
+10−1=18
−23
5Xiphos 0.6 64-bit 4CPU343021 − 78
+2−59=38
+22
3.5 − 21.5
+0−18=7
−69
 28.5 − 36.5
+11−19=35
+4
  64 − 50
+26−12=76
+28
56 − 62
+22−28=68
−20
 20.5 − 16.5
+8−4=25
−4
68 − 49
+32−13=72
−19
19 − 10
+11−2=16
+18
6Komodo 10 64-bit 4CPU3429            
7Fire 7.1 64-bit 4CPU342715.5 − 84.5
+1−70=29
−35
4 − 21
+0−17=8
−39
18.5 − 40.5
+4−26=29
+23
27.5 − 37.5
+4−14=47
+2
50 − 64
+12−26=76
−28
  60.5 − 57.5
+22−19=77
+3
 17 − 20
+6−9=22
−54
70 − 39
+39−8=62
+20
19.5 − 10.5
+12−3=15
+22
8SlowChess Blitz Classic 2.2 64-bit 4CPU3423   45.5 − 72.5
+11−38=69
−17
62 − 56
+28−22=68
+20
 57.5 − 60.5
+19−22=77
−3
  63 − 55
+35−27=56
−8
67.5 − 50.5
+31−14=73
−17
15.5 − 13.5
+9−7=13
−40
9Nemorino 6.00 64-bit 4CPU3416          21 − 15
+12−6=18
0
 
10RofChade 2.3 64-bit 4CPU3394   24.5 − 40.5
+5−21=39
+6
16.5 − 20.5
+4−8=25
+4
 20 − 17
+9−6=22
+54
55 − 63
+27−35=56
+8
  21 − 16
+6−1=30
+2
16.5 − 13.5
+8−5=17
−3
11Laser 1.7 64-bit 4CPU3365 3.5 − 21.5
+0−18=7
−4
  49 − 68
+13−32=72
+19
 39 − 70
+8−39=62
−20
50.5 − 67.5
+14−31=73
+17
15 − 21
+6−12=18
0
16 − 21
+1−6=30
−2
 16 − 14
+8−6=16
+19
12RubiChess 1.7.3 64-bit 4CPU3360 3 − 22
+0−19=6
−25
 10 − 19
+1−10=18
+23
10 − 19
+2−11=16
−18
 10.5 − 19.5
+3−12=15
−22
13.5 − 15.5
+7−9=13
+40
 13.5 − 16.5
+5−8=17
+3
14 − 16
+6−8=16
−19
 
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
1Lc0 0.25.1 t40-1541 RTX20803644 94.3100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish+NNUE 150720 64-bit 4CPU36285.7 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Allie 0.5 nn49921 RTX208035610.00.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4Ethereal 12.25 64-bit 4CPU34700.00.00.0 100.099.9100.0100.099.7100.0100.0100.0
5Xiphos 0.6 64-bit 4CPU34300.00.00.00.0 56.570.779.179.3100.0100.0100.0
6Komodo 10 64-bit 4CPU34290.00.00.00.143.5 59.069.075.499.8100.0100.0
7Fire 7.1 64-bit 4CPU34270.00.00.00.029.341.0 66.273.299.9100.0100.0
8SlowChess Blitz Classic 2.2 64-bit 4CPU34230.00.00.00.020.930.933.8 65.599.6100.0100.0
9Nemorino 6.00 64-bit 4CPU34160.00.00.00.320.724.626.834.5 88.699.999.6
10RofChade 2.3 64-bit 4CPU33940.00.00.00.00.00.20.10.411.4 99.898.1
11Laser 1.7 64-bit 4CPU33650.00.00.00.00.00.00.00.00.10.2 62.3
12RubiChess 1.7.3 64-bit 4CPU33600.00.00.00.00.00.00.00.00.41.937.7 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
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  (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 October 17, 2020