CCRL 40/2 FRC
Downloads and Statistics
May 6, 2021
Testing summary:
Total: 341'114 games
played by 257 programs

White wins: 137'230 (40.2%)
Black wins: 115'634 (33.9%)
Draws: 88'250 (25.9%)
White score: 53.2%

Complete rating list

CCRL 40/2 FRC Rating List — All engines (Quote)

Ponder off, 5-men EGTB, 128MB hash, 64-bit executables where available, random openings with switched sides
Time control: Equivalent to 40 moves in 2 minutes on an Intel i7-4770k.
Computed on May 6, 2021 with Bayeselo based on 341'114 games
Please refer to the "about" page for comments on engine inclusion
RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
ELO+
1Stockfish 1903213850+13−1375.5%−189.541.0%2424 
99.9%
 Stockfish 1101213819+15−1570.0%−148.442.9%1500
79.5%
2Fat Fritz 23812+10−1065.0%−109.553.6%3294
72.3%
 Stockfish 133807+15−1568.7%−136.445.8%1550
60.0%
3Dragon 2 by Komodo3804+14−1470.9%−153.942.5%1918
95.8%
 Dragon by Komodo3790+10−1067.8%−135.742.7%3770
99.8%
 Stockfish 123769+11−1167.7%−128.942.0%3050
95.2%
 Stockfish 1707203756+13−1372.1%−154.838.2%2350
100.0%
 Stockfish 103712+11−1177.6%−195.935.6%3612
100.0%
 Stockfish 93664+13−1377.3%−213.434.8%2400
99.8%
 Stockfish 1809173636+14−1477.9%−220.033.0%2100
70.5%
4Houdini 63632+7−659.1%−66.040.7%10660
99.9%
 Stockfish 83611+11−1172.7%−180.236.9%3300
63.8%
 Komodo 13.33609+9−965.3%−119.835.2%4726
76.8%
5Fire 8.13603+11−1148.0%+15.540.0%3212
57.7%
 Komodo 13.13602+12−1268.6%−139.938.4%2662
71.5%
 Houdini 5.013596+12−1272.6%−181.237.5%2700
94.8%
6Ethereal 12.753583+10−943.4%+51.537.3%4280
62.6%
 Komodo 11.2.13580+10−1061.7%−91.240.5%3614
62.8%
 Komodo 12.1.13578+12−1261.9%−94.041.1%2520
95.7%
 Ethereal 12.503564+10−1051.5%−9.041.0%3440
58.8%
 Stockfish 2005163561+16−1678.0%−230.027.1%1800
59.3%
 Komodo 10.43558+14−1471.6%−178.431.7%2100
99.4%
7SlowChess Blitz 2.43536+9−943.4%+54.134.3%5532
53.3%
8RubiChess 2.13535+10−1044.1%+48.933.5%3810
66.9%
 Stockfish 1503163531+15−1575.2%−200.031.6%1800
65.6%
 Komodo 14 MCTS3526+13−1346.9%+21.842.5%2052
72.9%
 Komodo 10.23521+13−1368.5%−151.330.7%2400
71.9%
 Ethereal 12.003515+10−1046.3%+29.738.5%3528
96.2%
 Stockfish 2008153498+15−1571.6%−169.231.6%1800
72.4%
 Komodo 9.423492+14−1464.3%−120.930.3%2100
58.8%
 SlowChess Blitz 2.23490+11−1141.8%+61.233.6%3278
59.6%
 Ethereal 11.753488+12−1254.9%−38.939.0%2600
47.7%
 Komodo 13.01 MCTS3488+10−1054.2%−36.139.6%3966
60.2%
 Komodo 103486+15−1566.9%−136.031.9%1800
63.5%
 Fire 7.13482+7−753.3%−31.240.2%7534
82.0%
 RubiChess 2.03475+15−1550.8%+2.033.4%1604
54.7%
 Komodo 9.23473+15−1568.6%−145.331.8%1800
50.1%
9Pedone 3.13473+12−1253.4%−27.135.0%2558
89.7%
 Ethereal 11.503462+12−1251.9%−17.837.4%2464
57.1%
 Stockfish 63460+13−1370.9%−161.032.6%2400
100.0%
 Komodo 93414+15−1569.8%−152.030.2%1800
62.8%
 Stockfish 0405143411+15−1579.7%−245.923.0%2100
56.2%
 Fire 6.13409+12−1249.3%−0.731.5%2920
57.8%
 SlowChess Blitz 2.13407+13−1339.2%+81.134.5%2200
70.2%
 RubiChess 1.93402+13−1342.9%+49.531.5%2260
81.2%
 Komodo 13863393+15−1567.1%−131.030.9%1800
51.5%
 Pedone 3.03393+12−1238.2%+81.333.9%2512
67.4%
 Houdini 43389+8−856.3%−61.627.3%6900
89.1%
10Schooner 2.23381+8−839.3%+75.236.6%5658
82.9%
11Shredder 133376+6−741.9%+55.633.4%11740
93.1%
 Fire 53367+11−1042.6%+51.829.2%3900
74.3%
 SlowChess Blitz 2.03362+11−1149.3%+6.332.8%3062
81.3%
 Houdini 33354+13−1276.3%−210.924.6%3000
55.1%
12Nemorino 6.003353+12−1242.2%+54.730.1%2486
75.9%
 Stockfish DD3346+15−1574.9%−200.025.0%2100
88.2%
 Nemorino 6.053333+15−1548.8%+7.728.8%1666
99.9%
13Demolito 2020-12-243305+11−1142.2%+56.930.9%2940
71.7%
 Stockfish 1609133300+14−1464.6%−118.328.9%2100
73.2%
 Demolito 2021-04-033293+14−1444.7%+38.233.7%1874
73.6%
14Critter 1.6a3288+6−642.5%+56.729.1%17936
84.0%
15Minic 3.063282+11−1155.7%−43.332.5%2914
70.6%
 Pedone 2.03278+12−1245.7%+29.835.7%2480
79.7%
 Houdini 2.03268+18−1769.2%−150.526.3%1300
52.3%
 SlowChess Blitz 1.93268+15−1540.1%+81.833.9%1700
81.3%
16Chiron 43260+7−738.0%+100.525.0%10144
99.1%
 Critter 1.23233+21−2072.2%−175.425.6%1000
58.3%
 Demolito 2020-02-053230+15−1545.8%+29.033.7%1500
63.7%
 Stockfish 33227+13−1369.2%−157.224.3%2700
51.7%
 SlowChess Blitz 1.83226+20−2048.6%+8.540.1%800
94.3%
 Pedone 1.93208+13−1338.3%+87.331.8%2300
65.5%
17‑18Senpai 2.03205+9−948.3%+12.931.1%4842
46.4%
17‑18Vajolet2 2.83205+10−1051.0%−7.134.9%3786
63.2%
 Stockfish 2.3.13202+15−1556.7%−56.129.3%1700
83.2%
 Stockfish 2.2.13191+18−1864.1%−110.527.0%1200
52.8%
 Stockfish VE_093190+16−1553.8%−37.329.5%1600
62.8%
 Stockfish 2.1.13186+19−1966.3%−124.428.6%1100
57.3%
 Stockfish 2.2.23183+20−2066.3%−125.728.5%1000
52.7%
19Stash 30.03182+13−1349.7%+0.627.9%2240
76.7%
 Demolito 2019-02-063175+16−1650.4%−5.029.9%1516
47.9%
 Nemorino 5.003175+11−1250.1%−0.331.6%2924
67.1%
 Fire 3.03172+9−931.8%+157.321.2%7200
83.2%
 Pedone 1.83162+19−1952.5%−23.132.3%1000
48.5%
 Stash 29.03162+13−1351.1%−9.728.4%2112
57.1%
 Critter 1.013160+20−2064.0%−108.828.7%900
54.5%
20Rybka 4.13159+6−637.0%+105.925.7%14042
95.6%
 Chiron 33148+11−1153.3%−28.423.2%3700
88.2%
 Stockfish 2.0.13136+18−1768.7%−145.426.8%1300
63.0%
 Minic 3.043132+12−1250.5%−3.929.1%2594
52.1%
 Nemorino 4.003131+20−2052.2%−18.127.6%1000
62.3%
 Stockfish 1.83127+19−1971.7%−167.123.9%1100
64.3%
21DanaSah 8.83122+13−1346.6%+22.920.9%2432
71.8%
22Monolith 23118+10−1051.1%−9.228.9%3684
69.8%
 Stockfish 1.73111+22−2271.5%−162.527.3%800
56.8%
 Stockfish 1.9.13108+25−2473.0%−179.121.7%700
62.6%
 Chiron 23104+10−1043.3%+57.620.8%4900
52.0%
 Critter 0.903103+20−2064.4%−109.925.8%1000
54.8%
 Stash 28.03102+15−1548.2%+10.528.6%1540
76.9%
 Nemorino 3.04a3092+19−2047.6%+20.929.8%1000
70.7%
 Rybka 33086+13−1366.7%−134.024.8%2400
76.2%
23Naum 4.63080+7−746.2%+30.124.7%8810
87.4%
 Stash 27.03070+15−1552.6%−20.427.2%1524
53.5%
 SlowChess Blitz 1.53069+18−1752.0%−18.028.1%1208
72.4%
 Minic 3.033062+18−1852.8%−21.726.6%1100
95.5%
24Rodent IV v0.263044+10−1045.1%+34.829.9%3872
65.2%
25Cheng 4.413041+14−1449.8%−0.223.9%2004
63.1%
 Chiron 1.53038+12−1236.5%+109.119.2%3300
56.4%
 Critter 0.803036+19−1955.4%−48.227.1%1000
51.9%
 Stockfish 1.63035+22−2264.6%−110.626.1%800
61.2%
 Naum 4.23032+9−937.9%+97.822.1%6400
70.1%
 Minic 2.483026+20−1953.0%−21.823.9%960
89.2%
 Shredder 123012+8−837.1%+106.022.1%7100
94.6%
 Minic 2.212999+15−1549.2%+4.924.6%1750
88.5%
 Naum 42985+16−1566.6%−129.623.1%1700
58.5%
 Chiron 1.1a2983+13−1440.8%+73.521.0%2600
57.5%
 Cheng 4.402981+15−1542.3%+52.525.3%1758
61.4%
 Demolito 2017-08-262978+15−1541.3%+66.825.9%1800
98.6%
 Rybka 2.3.2z32954+14−1468.1%−136.028.6%2100
93.2%
26Spike 1.4 Leiden2941+8−837.0%+100.922.3%8182
60.5%
 Stockfish 1.5.12938+19−1955.2%−39.823.8%1000
84.2%
27Hiarcs 13.22927+8−838.3%+94.220.4%8286
96.9%
28Bobcat 8.02915+11−1140.3%+70.724.3%3184
98.3%
29EXchess 7.92b2898+12−1240.4%+72.524.0%2746
52.5%
 Hiarcs 13.12897+16−1742.8%+53.025.1%1500
59.5%
 EXchess 7.71b2894+15−1538.6%+90.323.1%1900
85.5%
 Cheng 4.392884+12−1243.2%+53.622.7%2570
83.4%
30Deep Sjeng WC20082877+8−846.1%+33.122.0%7860
56.5%
 Shredder 112876+12−1259.3%−73.722.1%2800
87.0%
 Bobcat 7.62863+18−1852.0%−15.724.8%1100
64.6%
31The Baron 3.442858+17−1753.8%−28.325.8%1310
58.1%
 Naum 3.12856+16−1658.6%−69.224.5%1600
63.4%
 Deep Sjeng 3.02852+16−1657.1%−56.125.2%1400
93.2%
 Cheng4 0.382833+17−1745.2%+39.820.4%1300
55.1%
 Naum 32832+17−1658.8%−69.624.6%1400
53.2%
 Minic 1.152831+20−2048.6%+7.724.8%870
66.7%
 Hiarcs 12.12825+12−1247.8%+18.822.0%3100
58.2%
32‑33Cheese 2.22823+19−1947.3%+19.523.6%1000
49.2%
32‑33Cyclone xTreme Fear2823+9−947.3%+20.121.2%6420
56.0%
 Hiarcs 122822+15−1553.0%−22.826.9%1700
50.2%
 Hiarcs Paderborn 20072822+15−1553.1%−22.824.8%1700
72.4%
 EXchess 7.18b2815+14−1446.9%+26.222.1%1900
65.4%
 Bobcat 7.12811+18−1849.5%+3.525.1%1100
66.0%
34Tornado 8.02806+16−1653.1%−23.122.2%1520
59.4%
 Toga CMLX 1.4.5e2802+22−2251.4%−7.625.9%700
76.1%
 Glaurung 2.22793+14−1458.3%−70.619.8%2200
71.5%
 The Baron 3.292787+16−1646.9%+22.223.1%1500
58.8%
35Arminius 2018-12-232784+17−1747.9%+15.322.2%1310
63.1%
36GNU Chess 5.602781+11−1145.7%+32.523.6%3220
70.0%
 Hiarcs 11.12776+14−1459.3%−70.424.1%2000
66.9%
 Cheng4 0.36a2772+13−1355.8%−46.919.8%2600
54.2%
 Naum 2.22771+16−1560.0%−76.926.3%1600
53.9%
 Shredder 102770+15−1459.7%−76.719.4%1900
56.5%
 Hiarcs 112768+20−2062.4%−95.025.6%900
76.1%
 Fruit 0511032760+10−1057.0%−58.722.6%4100
49.5%
 Hiarcs 11.22760+19−1860.2%−79.223.7%1100
59.5%
 Cheese 2.02757+17−1750.7%−5.026.1%1300
50.5%
 GNU Chess 5.502756+13−1354.2%−32.519.0%2500
57.6%
37‑38Loop for Chess9602755+8−853.2%−27.323.1%8620
51.7%
37‑38Octochess 51902755+12−1251.6%−13.224.2%2820
59.0%
 Tornado 4.882753+11−1153.0%−24.118.7%3500
52.6%
 Fruit 2.32752+20−1964.0%−108.125.0%1000
68.9%
 Hiarcs X542745+22−2264.0%−108.623.8%800
87.8%
 Glaurung 2.12729+14−1551.0%−10.619.8%2000
72.5%
39Bright 0.4a2724+9−955.2%−42.319.9%5920
76.6%
 Fruit 2.2.12716+18−1856.6%−53.324.1%1200
56.2%
40Karballo 1.82714+17−1753.6%−27.024.6%1210
62.9%
 Spike 1.2 Turin2711+9−953.4%−29.023.0%5500
55.6%
41Frenzee 3.5.192710+11−1054.3%−34.716.2%3920
52.9%
 Deep Sjeng 2.72709+13−1351.2%−14.721.4%2300
72.6%
 Cheese 1.9.12702+16−1650.6%−4.921.6%1400
72.5%
 Glaurung 2.0.12696+15−1548.0%+8.522.6%1900
52.6%
 Arminius 2017-01-012695+17−1755.2%−39.520.8%1310
70.1%
 EXchess 6.50b2689+13−1452.0%−14.619.7%2300
52.2%
 Tornado 4.42688+13−1357.5%−59.918.8%2500
82.9%
 Naum 2.12678+17−1750.0%−4.426.4%1300
99.7%
 DanaSah 8.302644+16−1643.0%+55.023.9%1400
73.1%
 Cheese 1.82636+18−1948.1%+13.520.6%1100
51.3%
 Glaurung 1.2.12636+13−1346.6%+23.221.4%2400
95.5%
42Fridolin 3.002618+15−1546.0%+29.619.6%1730
74.4%
 Deep Sjeng 2.52610+15−1547.0%+16.621.5%1800
50.7%
43Dumb 1.82610+19−2046.4%+28.117.3%1000
53.8%
44‑45Daydreamer 1.752609+9−948.2%+14.221.8%5370
53.2%
44‑45Nebula 2.02609+10−1047.1%+23.720.5%4470
91.2%
46Alfil 13.12596+16−1649.7%+2.219.5%1570
72.3%
 DanaSah 7.902590+15−1555.6%−41.420.5%1640
57.3%
47Maverick 1.52588+13−1349.4%+4.919.5%2370
98.7%
 Frenzee Feb082569+12−1251.2%−11.215.2%3300
49.3%
 Monolith 0.42569+16−1649.1%+5.919.9%1510
51.2%
48Movei 00.8.4382569+8−846.5%+27.519.7%8070
72.9%
 DanaSah 7.302563+16−1651.9%−14.422.8%1520
54.9%
 Tornado 4.12562+15−1550.1%−1.118.3%1900
81.3%
 Dumb 1.72551+19−1949.9%+0.414.1%1050
48.4%
 GNU Chess 5.07.173b2551+13−1352.0%−17.316.3%2700
76.3%
49Pharaon 3.5.12546+8−745.9%+32.219.1%8670
55.9%
 The Baron 2.232545+10−1048.3%+12.417.1%4500
70.2%
 Arminius 2015-08-062540+18−1748.9%+8.221.1%1200
62.6%
50Galjoen 0.40.12536+18−1848.9%+7.421.3%1168
55.5%
51Hermann 2.82534+10−1049.7%+1.316.9%4060
88.2%
52Amyan 1.722526+9−948.5%+11.917.9%4920
55.5%
53Jonny 2.832525+9−948.4%+12.816.0%5320
55.9%
 Fridolin 2.002524+15−1550.4%−2.822.3%1600
59.7%
 Maverick 1.02521+17−1851.3%−9.720.8%1200
69.8%
54Hamsters 0.7.12516+9−948.3%+13.019.8%5660
68.7%
 Hermann 2.52512+13−1351.8%−16.316.8%2400
54.7%
 DanaSah 6.302511+18−1848.4%+10.322.1%1200
93.7%
 Hermann 2.42494+14−1447.7%+19.117.4%2300
51.7%
 Hamsters 0.62493+16−1738.2%+92.719.9%1600
53.9%
 DanaSah 5.072492+18−1855.5%−41.622.7%1100
55.5%
 Galjoen 0.41.12489+29−2939.4%+79.718.0%450
61.9%
55Ufim 8.022485+8−844.5%+44.719.0%7918
52.4%
 Dumb 1.62484+36−3651.8%−15.314.3%300
67.6%
 DanaSah 4.662475+13−1347.2%+20.419.4%2500
58.1%
 Daydreamer 1.612473+16−1645.4%+35.119.0%1700
54.0%
 Movei 00.8.3832472+15−1641.4%+72.617.5%1900
65.3%
 DanaSah 5.002467+15−1651.6%−13.620.3%1600
49.2%
 Tornado 3.422467+14−1443.9%+48.119.5%2000
68.9%
 Hermann 2.32461+20−2036.9%+108.916.2%1100
55.1%
 Tornado 2.22459+16−1644.2%+44.118.7%1700
77.9%
 The Baron 1.7.02449+22−2345.5%+30.119.3%800
52.0%
 DanaSah 4.202448+12−1245.0%+38.320.1%2800
90.5%
 DanaSah 4.602436+13−1345.9%+31.817.9%2400
49.5%
 Movei 00.8.3662436+26−2652.7%−22.717.0%600
72.6%
 Hamsters 0.52426+22−2240.1%+79.617.7%900
82.2%
 Nebula 1.02413+17−1748.7%+7.518.8%1300
76.5%
56LittleThought 1.0522405+11−1044.2%+44.517.4%4010
78.7%
 Hermann 2.02397+17−1839.3%+87.416.8%1400
90.7%
 Hamsters 0.42379+21−2138.6%+90.718.3%900
69.6%
 Galjoen 0.39.22372+19−1948.5%+9.720.6%1000
46.6%
 SlowChess 2.960d2372+13−1344.4%+43.418.5%2600
95.9%
 Tornado 2.1.41a2353+18−1841.1%+69.720.0%1300
66.8%
 Hermann 1.92346+24−2442.4%+64.416.0%700
54.7%
 Maverick 0.602344+20−2050.4%−3.715.6%1000
74.1%
57Hussar 0.42337+12−1240.0%+78.318.6%3000
67.6%
58Teki 22332+18−1849.8%+2.318.1%1200
98.7%
59Patzer 3.802309+12−1239.5%+84.614.1%3200
70.3%
 Hermann 1.72301+23−2344.9%+41.115.4%800
82.7%
60TJchess 1.012289+12−1238.1%+96.916.1%3100
100.0%
61Aice 0.99.22261+10−1036.2%+109.714.7%5000
92.3%
62Ayito 0.2.9942251+10−1035.6%+119.013.1%4800
61.5%
 Hamsters 0.22248+21−2151.4%−20.916.8%1000
94.9%
63Betsy Fischer2227+12−1237.3%+105.016.0%3400
99.9%
64Robocide 0.42192+19−2045.0%+39.319.1%1000
96.0%
 Hussar 0.22168+19−1940.9%+75.814.0%1300
54.5%
65Chispa 4.0.32167+13−1339.3%+88.226.0%2500
100.0%
66Homer 1.022119+14−1448.8%−2.815.3%2300
100.0%
67RamJet 0.142021+17−1755.8%−55.214.6%1582
98.7%
 Galjoen 0.35.21989+22−2326.8%+190.117.2%900
88.2%
 RamJet 0.121968+32−3329.9%+157.518.8%400
100.0%
68Taktix 2.23x1888+18−1841.5%+72.413.0%1550
58.4%
69BigLion 2.23x1885+18−1842.9%+64.213.5%1652
87.2%
70Sapeli 2.01868+25−2562.3%−126.413.7%782
100.0%
 Sapeli 1.201786+22−2259.5%−87.09.8%1056
76.9%
 Sapeli 1.021774+22−2246.4%+33.112.2%1100
98.6%
 Stash 11.0.11733+29−2854.4%−38.810.8%600
84.6%
 Sapeli 1.161707+36−3819.4%+271.312.3%400
100.0%
71ArcBishop80 2.24a1493+361918.7%+286.49.1%1086
84.2%
72BigLion80 2.23x1477+483516.9%+303.110.1%1068
 

Results matrix

All engines (top 10, best versions only)
#NameELO12345678910
1Stockfish 1903213850 169.5 − 140.5
+51−22=237
−13
157 − 117
+59−19=196
−8
258.5 − 51.5
+218−11=81
+30
247 − 53
+202−8=90
−15
271.5 − 38.5
+236−3=71
+28
279 − 31
+255−7=48
+32
267.5 − 32.5
+235−0=65
0
  
2Fat Fritz 23812140.5 − 169.5
+22−51=237
+13
 136.5 − 137.5
+32−33=209
−8
241 − 59
+197−15=88
+37
227.5 − 72.5
+176−21=103
−33
245.5 − 54.5
+208−17=75
+9
259 − 41
+226−8=66
+9
262.5 − 37.5
+225−0=75
+12
  
3Dragon 2 by Komodo3804117 − 157
+19−59=196
+8
137.5 − 136.5
+33−32=209
+8
 217 − 57
+173−13=88
+31
216.5 − 57.5
+175−16=83
+3
215.5 − 58.5
+171−14=89
−21
220.5 − 53.5
+177−10=87
−52
236 − 38
+204−6=64
+11
  
4Houdini 6363251.5 − 258.5
+11−218=81
−30
59 − 241
+15−197=88
−37
57 − 217
+13−173=88
−31
 162.5 − 137.5
+62−37=201
−6
108 − 92
+52−36=112
−26
166.5 − 83.5
+101−18=131
+2
181.5 − 118.5
+115−52=133
−31
162.5 − 75.5
+118−31=89
−39
288 − 62
+234−8=108
−20
5Fire 8.1360353 − 247
+8−202=90
+15
72.5 − 227.5
+21−176=103
+33
57.5 − 216.5
+16−175=83
−3
137.5 − 162.5
+37−62=201
+6
 165 − 135
+86−56=158
+9
176.5 − 123.5
+92−39=169
−15
186 − 114
+127−55=118
+8
155.5 − 82.5
+110−37=91
−29
242 − 58
+199−15=86
0
6Ethereal 12.75358338.5 − 271.5
+3−236=71
−28
54.5 − 245.5
+17−208=75
−9
58.5 − 215.5
+14−171=89
+21
92 − 108
+36−52=112
+26
135 − 165
+56−86=158
−9
 115 − 85
+62−32=106
−2
172.5 − 127.5
+96−51=153
−3
150 − 86
+96−32=108
−26
155 − 45
+124−14=62
−10
7SlowChess Blitz 2.4353631 − 279
+7−255=48
−32
41 − 259
+8−226=66
−9
53.5 − 220.5
+10−177=87
+52
83.5 − 166.5
+18−101=131
−2
123.5 − 176.5
+39−92=169
+15
85 − 115
+32−62=106
+2
 150 − 150
+89−89=122
−2
149 − 87
+108−46=82
+22
178 − 72
+145−39=66
−2
8RubiChess 2.1353532.5 − 267.5
+0−235=65
0
37.5 − 262.5
+0−225=75
−12
38 − 236
+6−204=64
−11
118.5 − 181.5
+52−115=133
+31
114 − 186
+55−127=118
−8
127.5 − 172.5
+51−96=153
+3
150 − 150
+89−89=122
+2
 148.5 − 87.5
+97−36=103
+18
213 − 87
+169−43=88
−7
9Pedone 3.13473   75.5 − 162.5
+31−118=89
+39
82.5 − 155.5
+37−110=91
+29
86 − 150
+32−96=108
+26
87 − 149
+46−108=82
−22
87.5 − 148.5
+36−97=103
−18
 138.5 − 97.5
+93−52=91
−35
10Schooner 2.23381   62 − 288
+8−234=108
+20
58 − 242
+15−199=86
0
45 − 155
+14−124=62
+10
72 − 178
+39−145=66
+2
87 − 213
+43−169=88
+7
97.5 − 138.5
+52−93=91
+35
 
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

All engines (top 10, best versions only)
#NameELO12345678910
1Stockfish 1903213850 100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Fat Fritz 238120.0 82.7100.0100.0100.0100.0100.0100.0100.0
3Dragon 2 by Komodo38040.017.3 100.0100.0100.0100.0100.0100.0100.0
4Houdini 636320.00.00.0 100.0100.0100.0100.0100.0100.0
5Fire 8.136030.00.00.00.0 99.9100.0100.0100.0100.0
6Ethereal 12.7535830.00.00.00.00.1 100.0100.0100.0100.0
7SlowChess Blitz 2.435360.00.00.00.00.00.0 53.3100.0100.0
8RubiChess 2.135350.00.00.00.00.00.046.7 100.0100.0
9Pedone 3.134730.00.00.00.00.00.00.00.0 100.0
10Schooner 2.233810.00.00.00.00.00.00.00.00.0 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

Explanation of the columns

"Rank" — 1 is best, 2 is second best, etc.. Note that only best engine version wich played at least 150 games may have rank, that's why many engines don't have any rank.
"Name" — Name and version of an engine, including settings, 32/64-bit and number of CPUs. It has green color if an engine is free.
"ELO" — Engine rating computed with Bayeselo.
"+" and "−" — 95% confidence intervals. For example, if engine's rating is 2850, "+" is +20 and "−" is −15, it means that there is only 5% estimated probability that engine's "true" rating is outside of the [2850−15 .. 2850+20] range.
"Score" — Number of points scored by an engine, divided by the number of games. Win is 1 point, draw is 1/2 of a point, and loss is 0.
"Average Opponent" — Difference between the rating of engine tested and average of the opponent ratings for all games played by that engine. Positive number means that engine was playing with stronger opponents, averagely. Negative number - weaker opponents.
"Draws" — Percentage of games by an engine, that ended in a draw.
"Games" — Total number of games played by an engine.

Additional selections from the complete rating list

All engines    

Free engines  

Open source engines  


Created in 2005-2008 by CCRL team
Last games added on May 6, 2021