CCRL 40/2 FRC
Downloads and Statistics
January 23, 2021
Testing summary:
Total: 300'494 games
played by 233 programs

White wins: 121'575 (40.5%)
Black wins: 103'591 (34.5%)
Draws: 75'328 (25.1%)
White score: 53.0%

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 January 23, 2021 with Bayeselo based on 300'494 games
RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
ELO+
1Dragon by Komodo3782+15−1575.4%−182.536.4%1650 
89.9%
2Stockfish 123770+12−1270.1%−144.038.3%2750
87.7%
 Stockfish 1707203761+13−1272.1%−154.738.2%2350
100.0%
 Stockfish 103718+11−1177.6%−196.135.6%3612
100.0%
 Stockfish 93670+13−1377.3%−214.134.8%2400
100.0%
3Houdini 63644+7−765.8%−115.541.8%8228
59.2%
 Stockfish 1809173642+14−1477.9%−220.933.0%2100
99.8%
 Stockfish 83616+11−1172.7%−181.136.9%3300
62.1%
 Komodo 13.33614+9−965.3%−120.135.2%4726
79.9%
 Komodo 13.13607+12−1268.6%−139.438.4%2662
78.0%
 Houdini 5.013600+12−1272.6%−181.637.5%2700
69.6%
4Ethereal 12.753595+14−1457.7%−54.539.8%1850
85.9%
 Komodo 11.2.13585+10−1061.7%−91.040.5%3614
60.2%
 Komodo 12.1.13583+12−1261.9%−93.541.1%2520
96.6%
 Ethereal 12.503568+10−1051.5%−8.541.0%3440
69.7%
 Stockfish 2005163563+16−1678.0%−230.527.1%1800
52.0%
 Komodo 10.43562+14−1471.6%−178.731.7%2100
98.8%
5SlowChess Blitz 2.43540+12−1251.5%−10.337.5%2650
74.7%
 Stockfish 1503163533+15−1575.2%−200.531.6%1800
51.2%
 Komodo 14 MCTS3532+13−1346.9%+21.742.5%2052
80.6%
 Komodo 10.23524+13−1368.5%−151.330.7%2400
63.5%
 Ethereal 12.003521+10−1046.3%+28.938.5%3528
98.3%
 Stockfish 2008153499+15−1571.6%−168.531.6%1800
72.4%
 Komodo 9.423494+14−1464.3%−121.330.3%2100
48.8%
 SlowChess Blitz 2.23494+11−1141.8%+60.933.6%3278
55.9%
 Ethereal 11.753493+12−1254.9%−39.139.0%2600
46.6%
 Komodo 13.01 MCTS3493+10−1054.2%−36.139.6%3966
85.9%
6Fire 7.13487+8−752.9%−29.540.4%7282
49.2%
 Komodo 103487+15−1566.9%−135.331.9%1800
86.8%
 Komodo 9.23475+15−1568.6%−145.831.8%1800
78.0%
 Ethereal 11.503467+12−1251.9%−18.337.4%2464
69.5%
 Stockfish 63462+13−1370.9%−161.632.6%2400
100.0%
 Komodo 93416+15−1569.8%−152.730.2%1800
59.0%
 Fire 6.13413+12−1249.3%−0.631.5%2920
53.3%
 SlowChess Blitz 2.13413+13−1339.2%+80.834.5%2200
52.3%
 Stockfish 0405143412+15−1579.7%−245.723.0%2100
65.1%
7‑8Pedone 3.03407+15−1540.9%+63.433.6%1550
53.6%
7‑8RubiChess 1.93407+14−1341.0%+62.331.8%2050
86.8%
 Komodo 13863394+15−1567.1%−130.730.9%1800
69.0%
 Houdini 43390+8−856.3%−61.327.3%6900
75.1%
9Schooner 2.23386+10−1039.2%+75.136.7%4260
81.1%
10Shredder 133381+7−641.7%+56.133.3%10646
94.6%
 Fire 53371+11−1042.6%+51.629.2%3900
76.8%
 SlowChess Blitz 2.03365+11−1149.3%+6.532.8%3062
86.0%
 Houdini 33356+12−1276.3%−211.624.6%3000
80.2%
 Stockfish DD3347+15−1474.9%−199.925.0%2100
70.9%
11Nemorino 6.003341+17−1746.3%+25.929.5%1200
99.6%
12Demolito 2020-12-243313+14−1439.5%+76.232.9%1950
87.3%
 Stockfish 1609133301+14−1464.6%−117.928.9%2100
92.8%
13Critter 1.6a3290+6−641.9%+61.629.1%16644
93.0%
 Pedone 2.03280+12−1245.7%+30.535.7%2480
82.8%
 Houdini 2.03270+18−1769.2%−151.326.3%1300
47.9%
 SlowChess Blitz 1.93270+15−1540.1%+82.733.9%1700
75.3%
14Chiron 43264+8−834.6%+127.324.3%8732
99.6%
 Critter 1.23234+21−2072.2%−175.325.6%1000
56.1%
 Demolito 2020-02-053232+15−1545.8%+28.733.7%1500
63.6%
 SlowChess Blitz 1.83228+20−2048.6%+8.040.1%800
49.3%
 Stockfish 33228+13−1369.2%−157.024.3%2700
96.9%
 Pedone 1.93210+13−1338.3%+87.931.8%2300
73.5%
 Stockfish 2.3.13204+15−1556.7%−56.529.3%1700
52.3%
15‑16Senpai 2.03203+10−1147.2%+21.531.5%3572
48.9%
15‑16Vajolet2 2.83203+13−1248.9%+6.135.1%2236
84.3%
 Stockfish 2.2.13192+18−1864.1%−110.427.0%1200
51.4%
 Stockfish VE_093191+16−1653.8%−36.829.5%1600
64.3%
 Stockfish 2.1.13187+19−1966.3%−124.428.6%1100
57.1%
 Stockfish 2.2.23184+20−2066.3%−125.628.5%1000
76.3%
 Nemorino 5.003176+12−1150.1%−1.031.6%2924
50.7%
 Demolito 2019-02-063175+16−1650.4%−4.229.9%1516
58.8%
 Fire 3.03173+9−931.8%+157.921.2%7200
84.5%
 Pedone 1.83162+19−1952.5%−22.132.3%1000
54.9%
 Critter 1.013161+20−2064.0%−108.928.7%900
49.3%
17Rybka 4.13161+7−635.5%+118.926.1%12680
97.1%
 Chiron 33149+11−1153.3%−28.323.2%3700
88.8%
 Stockfish 2.0.13136+18−1768.7%−144.626.8%1300
63.2%
 Nemorino 4.003132+20−2052.2%−18.627.6%1000
62.2%
 Stockfish 1.83127+19−1971.7%−166.523.9%1100
83.6%
18Monolith 23115+13−1353.2%−25.229.6%2320
61.4%
 Stockfish 1.73111+22−2271.5%−162.027.3%800
56.9%
 Stockfish 1.9.13109+25−2473.0%−179.621.7%700
61.7%
 Chiron 23104+10−1043.3%+58.320.8%4900
52.0%
 Critter 0.903104+20−2064.4%−110.225.8%1000
78.4%
 Nemorino 3.04a3093+20−2047.6%+20.429.8%1000
70.3%
 Rybka 33086+13−1366.7%−133.724.8%2400
88.6%
19Naum 4.63076+8−846.5%+29.624.3%7440
78.6%
 SlowChess Blitz 1.53069+17−1852.0%−18.528.1%1208
74.4%
20Minic 3.033060+18−1852.8%−21.026.6%1100
96.9%
 Chiron 1.53039+12−1236.5%+109.319.2%3300
58.8%
 Critter 0.803036+19−1955.4%−47.827.1%1000
53.1%
21Rodent IV v0.263035+12−1247.8%+15.930.0%2560
49.5%
 Stockfish 1.63035+22−2264.6%−110.126.1%800
59.3%
 Naum 4.23033+9−937.9%+97.722.1%6400
81.1%
 Minic 2.483023+20−1953.0%−21.823.9%960
81.4%
 Shredder 123013+8−837.1%+105.722.1%7100
96.9%
 Minic 2.212997+15−1549.2%+5.424.6%1750
84.7%
 Naum 42985+16−1566.6%−129.423.1%1700
56.2%
 Chiron 1.1a2984+13−1440.8%+73.621.0%2600
53.3%
22Cheng 4.402983+19−1951.9%−16.323.5%1000
64.8%
 Demolito 2017-08-262978+15−1541.3%+67.325.9%1800
98.6%
 Rybka 2.3.2z32954+14−1468.1%−135.928.6%2100
90.7%
23Spike 1.4 Leiden2943+8−837.4%+97.722.4%7420
64.8%
 Stockfish 1.5.12939+19−1955.2%−40.423.8%1000
85.5%
24Hiarcs 13.22927+8−838.2%+95.320.5%7830
98.3%
25Bobcat 8.02911+13−1338.1%+88.125.8%2330
92.0%
26EXchess 7.92b2899+12−1240.5%+71.624.0%2470
54.8%
 Hiarcs 13.12897+16−1642.8%+53.325.1%1500
61.0%
 EXchess 7.71b2894+14−1538.6%+90.223.1%1900
86.4%
 Cheng 4.392884+12−1243.2%+53.022.7%2570
83.5%
27Deep Sjeng WC20082877+8−845.9%+34.422.0%7760
52.5%
 Shredder 112876+12−1259.3%−73.522.1%2800
86.8%
 Bobcat 7.62863+18−1852.0%−15.224.8%1100
66.4%
28The Baron 3.442858+17−1653.8%−28.625.8%1310
56.5%
 Naum 3.12856+16−1658.6%−69.124.5%1600
63.2%
 Deep Sjeng 3.02852+17−1657.1%−56.025.2%1400
93.3%
 Cheng4 0.382834+17−1745.2%+39.020.4%1300
54.8%
 Naum 32832+17−1658.8%−69.624.6%1400
53.7%
 Minic 1.152831+20−2048.6%+7.924.8%870
66.1%
 Hiarcs 12.12826+12−1247.8%+18.022.0%3100
61.3%
29Cyclone xTreme Fear2824+9−947.3%+19.421.2%6320
56.6%
 Hiarcs 122822+15−1553.0%−22.826.9%1700
50.2%
 Hiarcs Paderborn 20072822+15−1553.1%−22.824.8%1700
71.5%
 EXchess 7.18b2816+14−1446.9%+25.822.1%1900
66.6%
 Bobcat 7.12811+18−1849.5%+3.725.1%1100
64.7%
30Tornado 8.02806+16−1653.1%−22.522.2%1520
60.4%
 Toga CMLX 1.4.5e2803+22−2251.4%−8.425.9%700
76.0%
 Glaurung 2.22793+14−1458.3%−70.519.8%2200
71.6%
 The Baron 3.292787+16−1646.9%+22.523.1%1500
67.3%
31GNU Chess 5.602783+11−1145.9%+30.523.6%3120
52.1%
32Arminius 2018-12-232782+17−1747.8%+16.122.5%1210
69.4%
 Hiarcs 11.12776+14−1459.3%−70.324.1%2000
66.7%
 Cheng4 0.36a2772+13−1355.8%−46.619.8%2600
54.4%
 Naum 2.22771+15−1560.0%−76.826.3%1600
53.9%
 Shredder 102770+15−1459.7%−76.619.4%1900
56.6%
 Hiarcs 112768+20−2062.4%−95.025.6%900
76.1%
 Fruit 0511032760+10−1057.0%−58.622.6%4100
49.3%
 Hiarcs 11.22760+19−1860.2%−79.123.7%1100
58.2%
33Cheese 2.02757+17−1750.7%−4.526.1%1300
52.3%
 GNU Chess 5.502757+13−1354.2%−33.319.0%2500
57.7%
34Loop for Chess9602755+8−753.2%−27.123.1%8620
56.3%
35Octochess 51902754+12−1251.9%−15.024.1%2720
54.7%
 Tornado 4.882753+11−1153.0%−23.718.7%3500
52.9%
 Fruit 2.32752+20−2064.0%−108.025.0%1000
68.9%
 Hiarcs X542745+22−2264.0%−108.623.8%800
87.9%
 Glaurung 2.12729+15−1451.0%−10.619.8%2000
71.7%
36Bright 0.4a2724+9−955.3%−43.320.0%5720
61.1%
37Karballo 1.82721+18−1853.6%−26.925.1%1110
64.0%
 Fruit 2.2.12716+18−1856.6%−53.324.1%1200
70.9%
 Spike 1.2 Turin2711+9−953.4%−28.923.0%5500
52.6%
38Frenzee 3.5.192710+11−1154.1%−32.616.2%3820
54.9%
 Deep Sjeng 2.72709+13−1351.2%−14.721.4%2300
72.8%
 Cheese 1.9.12703+16−1650.6%−6.021.6%1400
72.3%
 Glaurung 2.0.12696+15−1548.0%+8.522.6%1900
53.2%
 Arminius 2017-01-012695+17−1755.2%−39.720.8%1310
69.7%
 EXchess 6.50b2689+13−1352.0%−14.419.7%2300
52.3%
 Tornado 4.42689+13−1357.5%−60.718.8%2500
82.8%
 Naum 2.12678+17−1750.0%−4.326.4%1300
99.6%
39DanaSah 8.302644+18−1846.5%+24.426.0%1100
73.1%
 Cheese 1.82636+19−1848.1%+13.220.6%1100
50.4%
 Glaurung 1.2.12636+13−1346.6%+23.321.4%2400
94.8%
40Fridolin 3.002618+15−1545.7%+32.319.6%1630
75.3%
 Deep Sjeng 2.52611+15−1547.0%+15.621.5%1800
58.1%
41‑42Daydreamer 1.752609+9−947.9%+16.122.0%5220
50.9%
41‑42Nebula 2.02609+10−1046.7%+26.320.4%4320
86.3%
43Alfil 13.12598+16−1649.5%+3.620.2%1420
77.4%
 DanaSah 7.902590+15−1555.6%−41.420.5%1640
65.8%
44Maverick 1.52586+13−1348.9%+8.619.6%2220
97.3%
 Frenzee Feb082569+12−1251.2%−11.115.2%3300
49.4%
 Monolith 0.42569+16−1649.1%+5.919.9%1510
48.7%
45Movei 00.8.4382569+8−746.5%+28.119.7%7920
74.9%
 DanaSah 7.302563+16−1551.9%−14.422.8%1520
54.8%
 Tornado 4.12562+15−1550.1%−1.018.3%1900
78.0%
46Dumb 1.72552+20−2049.7%+2.514.2%1000
52.9%
 GNU Chess 5.07.173b2551+13−1352.0%−17.316.3%2700
76.0%
47Pharaon 3.5.12546+7−745.8%+32.819.1%8620
56.4%
 The Baron 2.232545+10−1048.3%+12.517.1%4500
71.2%
 Arminius 2015-08-062540+18−1848.9%+8.021.1%1200
61.4%
48Galjoen 0.40.12536+18−1848.9%+7.521.3%1168
57.6%
49Hermann 2.82534+10−1149.5%+2.117.0%4010
86.9%
50Amyan 1.722526+10−948.5%+11.917.9%4920
55.4%
51Jonny 2.832525+9−948.4%+12.816.0%5320
56.7%
 Fridolin 2.002524+15−1550.4%−2.922.3%1600
59.2%
 Maverick 1.02521+18−1851.3%−9.720.8%1200
70.4%
52Hamsters 0.7.12516+9−948.3%+13.419.8%5610
67.5%
 Hermann 2.52513+13−1351.8%−17.316.8%2400
55.6%
 DanaSah 6.302511+17−1848.4%+10.222.1%1200
93.3%
 Hermann 2.42494+14−1447.7%+19.117.4%2300
51.5%
 Hamsters 0.62493+16−1738.2%+92.719.9%1600
54.5%
 DanaSah 5.072492+18−1855.5%−41.622.7%1100
75.7%
53Ufim 8.022485+8−844.5%+44.719.0%7918
52.6%
 Dumb 1.62484+36−3551.8%−15.314.3%300
67.4%
 DanaSah 4.662475+13−1347.2%+20.419.4%2500
58.0%
 Daydreamer 1.612473+16−1645.4%+35.119.0%1700
53.9%
 Movei 00.8.3832472+15−1541.4%+72.717.5%1900
65.8%
 DanaSah 5.002467+16−1651.6%−13.620.3%1600
48.8%
 Tornado 3.422467+14−1443.9%+48.219.5%2000
68.7%
 Hermann 2.32461+20−2036.9%+108.916.2%1100
55.3%
 Tornado 2.22459+16−1644.2%+44.118.7%1700
77.9%
 The Baron 1.7.02449+22−2245.5%+30.119.3%800
52.1%
 DanaSah 4.202448+12−1245.0%+38.420.1%2800
90.5%
 DanaSah 4.602436+14−1345.9%+31.917.9%2400
49.4%
 Movei 00.8.3662436+26−2652.7%−22.517.0%600
72.5%
 Hamsters 0.52426+22−2240.1%+79.617.7%900
82.6%
 Nebula 1.02413+17−1748.7%+7.518.8%1300
76.4%
54LittleThought 1.0522405+11−1044.2%+44.517.4%4010
78.3%
 Hermann 2.02397+17−1839.3%+87.416.8%1400
90.7%
 Hamsters 0.42379+21−2238.6%+90.818.3%900
70.0%
 Galjoen 0.39.22372+19−1948.5%+9.720.6%1000
46.5%
 SlowChess 2.960d2372+13−1344.4%+43.418.5%2600
95.8%
 Tornado 2.1.41a2353+18−1841.1%+69.720.0%1300
66.8%
 Hermann 1.92346+24−2442.4%+64.616.0%700
54.9%
 Maverick 0.602344+20−2050.4%−3.715.6%1000
74.1%
55Hussar 0.42337+12−1240.0%+78.318.6%3000
67.6%
56Teki 22332+18−1849.8%+2.318.1%1200
98.7%
57Patzer 3.802309+12−1239.5%+84.614.1%3200
70.1%
 Hermann 1.72302+23−2344.9%+40.115.4%800
82.8%
58TJchess 1.012289+12−1238.1%+96.916.1%3100
100.0%
59Aice 0.99.22261+10−1036.2%+109.714.7%5000
92.3%
60Ayito 0.2.9942251+10−1035.6%+119.013.1%4800
61.3%
 Hamsters 0.22248+21−2151.4%−20.916.8%1000
94.9%
61Betsy Fischer2227+12−1237.3%+105.116.0%3400
99.9%
62Robocide 0.42192+19−2045.0%+39.319.1%1000
95.9%
 Hussar 0.22168+19−1940.9%+75.814.0%1300
54.6%
63Chispa 4.0.32167+13−1339.3%+88.226.0%2500
100.0%
64Homer 1.022119+14−1448.8%−2.415.3%2300
100.0%
65RamJet 0.142021+18−1854.3%−44.814.5%1434
98.5%
 Galjoen 0.35.21989+22−2326.8%+190.117.2%900
88.1%
 RamJet 0.121968+32−3329.9%+157.518.8%400
100.0%
66Taktix 2.23x1896+20−2037.1%+112.512.5%1300
91.4%
67BigLion 2.23x1877+19−1937.5%+116.113.6%1400
100.0%
68Sapeli 1.201794+25−2552.2%−22.810.1%800
85.9%
 Sapeli 1.021774+24−2438.1%+106.412.6%900
97.4%
69Stash 11.0.11732+32−3345.2%+38.710.4%450
82.9%
 Sapeli 1.161707+36−3819.4%+271.312.3%400
100.0%
70ArcBishop80 2.24a1497+29−1016.4%+303.47.8%816
 

Results matrix

All engines (top 10, best versions only)
#NameELO12345678910
1Dragon by Komodo3782 152 − 148
+56−52=192
−8
148.5 − 51.5
+111−14=75
+21
195.5 − 54.5
+152−11=87
+5
249.5 − 50.5
+210−11=79
+4
     
2Stockfish 123770148 − 152
+52−56=192
+8
 206.5 − 93.5
+155−42=103
+1
146.5 − 53.5
+103−10=87
−27
192 − 58
+157−23=70
−38
     
3Houdini 6364451.5 − 148.5
+14−111=75
−21
93.5 − 206.5
+42−155=103
−1
 108 − 92
+52−36=112
−26
166.5 − 83.5
+101−18=131
−5
226 − 74
+170−18=112
+10
121 − 29
+100−8=42
−14
236 − 64
+191−19=90
−34
288 − 62
+234−8=108
−27
256.5 − 43.5
+217−4=79
+3
4Ethereal 12.75359554.5 − 195.5
+11−152=87
−5
53.5 − 146.5
+10−103=87
+27
92 − 108
+36−52=112
+26
 115 − 85
+62−32=106
−10
136 − 64
+89−17=94
+1
148.5 − 51.5
+120−23=57
−16
153 − 47
+121−15=64
−4
155 − 45
+124−14=62
−17
159.5 − 40.5
+126−7=67
−7
5SlowChess Blitz 2.4354050.5 − 249.5
+11−210=79
−4
58 − 192
+23−157=70
+38
83.5 − 166.5
+18−101=131
+5
85 − 115
+32−62=106
+10
 138 − 112
+73−47=130
−22
102 − 48
+73−19=58
−16
175.5 − 74.5
+137−36=77
+6
178 − 72
+145−39=66
−1
182 − 68
+139−25=86
−5
6Fire 7.13487  74 − 226
+18−170=112
−10
64 − 136
+17−89=94
−1
112 − 138
+47−73=130
+22
 93.5 − 56.5
+64−27=59
−1
63 − 37
+49−23=28
+10
61 − 39
+38−16=46
−33
198.5 − 101.5
+124−27=149
−8
7Pedone 3.03407  29 − 121
+8−100=42
+14
51.5 − 148.5
+23−120=57
+16
48 − 102
+19−73=58
+16
56.5 − 93.5
+27−64=59
+1
 80 − 70
+51−41=58
+21
73.5 − 76.5
+49−52=49
−27
80 − 70
+58−48=44
−3
8RubiChess 1.93407  64 − 236
+19−191=90
+34
47 − 153
+15−121=64
+4
74.5 − 175.5
+36−137=77
−6
37 − 63
+23−49=28
−10
70 − 80
+41−51=58
−21
 46 − 54
+29−37=34
−46
51 − 49
+34−32=34
−20
9Schooner 2.23386  62 − 288
+8−234=108
+27
45 − 155
+14−124=62
+17
72 − 178
+39−145=66
+1
39 − 61
+16−38=46
+33
76.5 − 73.5
+52−49=49
+27
54 − 46
+37−29=34
+46
 50.5 − 49.5
+28−27=45
−2
10Shredder 133381  43.5 − 256.5
+4−217=79
−3
40.5 − 159.5
+7−126=67
+7
68 − 182
+25−139=86
+5
101.5 − 198.5
+27−124=149
+8
70 − 80
+48−58=44
+3
49 − 51
+32−34=34
+20
49.5 − 50.5
+27−28=45
+2
 
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
1Dragon by Komodo3782 89.9100.0100.0100.0100.0100.0100.0100.0100.0
2Stockfish 12377010.1 100.0100.0100.0100.0100.0100.0100.0100.0
3Houdini 636440.00.0 100.0100.0100.0100.0100.0100.0100.0
4Ethereal 12.7535950.00.00.0 100.0100.0100.0100.0100.0100.0
5SlowChess Blitz 2.435400.00.00.00.0 100.0100.0100.0100.0100.0
6Fire 7.134870.00.00.00.00.0 100.0100.0100.0100.0
7Pedone 3.034070.00.00.00.00.00.0 53.699.399.9
8RubiChess 1.934070.00.00.00.00.00.046.4 99.5100.0
9Schooner 2.233860.00.00.00.00.00.00.70.5 81.1
10Shredder 1333810.00.00.00.00.00.00.10.018.9 
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 January 23, 2021