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%

Free engines

Comparing 205 engines!
64 best versions of selected engines played 49010 games with each other

CCRL 40/2 FRC Rating List — Free 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
87.0%
 Stockfish 133807+15−1568.7%−136.445.8%1550
100.0%
 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
99.6%
 Stockfish 83611+11−1172.7%−180.236.9%3300
83.4%
2Fire 8.13603+11−1148.0%+15.540.0%3212
99.9%
3Ethereal 12.753583+10−943.4%+51.537.3%4280
99.6%
 Ethereal 12.503564+10−1051.5%−9.041.0%3440
58.8%
 Stockfish 2005163561+16−1678.0%−230.027.1%1800
99.3%
4SlowChess Blitz 2.43536+9−943.4%+54.134.3%5532
53.3%
5RubiChess 2.13535+10−1044.1%+48.933.5%3810
66.9%
 Stockfish 1503163531+15−1575.2%−200.031.6%1800
93.6%
 Ethereal 12.003515+10−1046.3%+29.738.5%3528
96.2%
 Stockfish 2008153498+15−1571.6%−169.231.6%1800
78.0%
 SlowChess Blitz 2.23490+11−1141.8%+61.233.6%3278
59.6%
 Ethereal 11.753488+12−1254.9%−38.939.0%2600
78.4%
 Fire 7.13482+7−753.3%−31.240.2%7534
82.0%
 RubiChess 2.03475+15−1550.8%+2.033.4%1604
55.5%
6Pedone 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%
7Komodo 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
87.0%
 Pedone 3.03393+12−1238.2%+81.333.9%2512
94.8%
8Schooner 2.23381+8−839.3%+75.236.6%5658
97.4%
 Fire 53367+11−1042.6%+51.829.2%3900
74.3%
 SlowChess Blitz 2.03362+11−1149.3%+6.332.8%3062
86.0%
9Nemorino 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%
10Demolito 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%
11Critter 1.6a3288+6−642.5%+56.729.1%17936
84.0%
12Minic 3.063282+11−1155.7%−43.332.5%2914
70.6%
 Pedone 2.03278+12−1245.7%+29.835.7%2480
85.1%
 SlowChess Blitz 1.93268+15−1540.1%+81.833.9%1700
99.5%
 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%
13‑14Senpai 2.03205+9−948.3%+12.931.1%4842
46.4%
13‑14Vajolet2 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%
15Stash 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
96.8%
 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%
16DanaSah 8.83122+13−1346.6%+22.920.9%2432
71.8%
17Monolith 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
62.1%
 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
88.6%
18Naum 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%
19Rodent IV v0.263044+10−1045.1%+34.829.9%3872
65.2%
20Cheng 4.413041+14−1449.8%−0.223.9%2004
65.8%
 Critter 0.803036+19−1955.4%−48.227.1%1000
51.9%
 Stockfish 1.63035+22−2264.6%−110.626.1%800
72.6%
 Minic 2.483026+20−1953.0%−21.823.9%960
98.7%
 Minic 2.212999+15−1549.2%+4.924.6%1750
95.4%
 Cheng 4.402981+15−1542.3%+52.525.3%1758
61.4%
 Demolito 2017-08-262978+15−1541.3%+66.825.9%1800
100.0%
21Spike 1.4 Leiden2941+8−837.0%+100.922.3%8182
60.5%
 Stockfish 1.5.12938+19−1955.2%−39.823.8%1000
97.7%
22Bobcat 8.02915+11−1140.3%+70.724.3%3184
98.3%
23EXchess 7.92b2898+12−1240.4%+72.524.0%2746
64.0%
 EXchess 7.71b2894+15−1538.6%+90.323.1%1900
85.5%
 Cheng 4.392884+12−1243.2%+53.622.7%2570
97.4%
 Bobcat 7.62863+18−1852.0%−15.724.8%1100
64.6%
24The Baron 3.442858+17−1753.8%−28.325.8%1310
97.9%
 Cheng4 0.382833+17−1745.2%+39.820.4%1300
57.8%
 Minic 1.152831+20−2048.6%+7.724.8%870
70.6%
25‑26Cheese 2.22823+19−1947.3%+19.523.6%1000
49.2%
25‑26Cyclone xTreme Fear2823+9−947.3%+20.121.2%6420
83.0%
 EXchess 7.18b2815+14−1446.9%+26.222.1%1900
65.4%
 Bobcat 7.12811+18−1849.5%+3.525.1%1100
66.0%
27Tornado 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%
28Arminius 2018-12-232784+17−1747.9%+15.322.2%1310
63.1%
29GNU Chess 5.602781+11−1145.7%+32.523.6%3220
86.6%
 Cheng4 0.36a2772+13−1355.8%−46.919.8%2600
92.7%
 Fruit 0511032760+10−1057.0%−58.722.6%4100
61.6%
 Cheese 2.02757+17−1750.7%−5.026.1%1300
50.5%
 GNU Chess 5.502756+13−1354.2%−32.519.0%2500
57.8%
30Octochess 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
96.8%
 Glaurung 2.12729+14−1551.0%−10.619.8%2000
72.5%
31Bright 0.4a2724+9−955.2%−42.319.9%5920
76.6%
 Fruit 2.2.12716+18−1856.6%−53.324.1%1200
56.2%
32Karballo 1.82714+17−1753.6%−27.024.6%1210
62.9%
 Spike 1.2 Turin2711+9−953.4%−29.023.0%5500
55.6%
33Frenzee 3.5.192710+11−1054.3%−34.716.2%3920
77.5%
 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
100.0%
 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%
34Fridolin 3.002618+15−1546.0%+29.619.6%1730
73.6%
35Dumb 1.82610+19−2046.4%+28.117.3%1000
53.8%
36‑37Daydreamer 1.752609+9−948.2%+14.221.8%5370
53.2%
36‑37Nebula 2.02609+10−1047.1%+23.720.5%4470
91.2%
38Alfil 13.12596+16−1649.7%+2.219.5%1570
72.3%
 DanaSah 7.902590+15−1555.6%−41.420.5%1640
57.3%
39Maverick 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%
40Movei 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%
41Pharaon 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%
42Galjoen 0.40.12536+18−1848.9%+7.421.3%1168
55.5%
43Hermann 2.82534+10−1049.7%+1.316.9%4060
88.2%
44Amyan 1.722526+9−948.5%+11.917.9%4920
55.5%
45Jonny 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%
46Hamsters 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%
47Ufim 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%
48LittleThought 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%
49Hussar 0.42337+12−1240.0%+78.318.6%3000
67.6%
50Teki 22332+18−1849.8%+2.318.1%1200
98.7%
51Patzer 3.802309+12−1239.5%+84.614.1%3200
70.3%
 Hermann 1.72301+23−2344.9%+41.115.4%800
82.7%
52TJchess 1.012289+12−1238.1%+96.916.1%3100
100.0%
53Aice 0.99.22261+10−1036.2%+109.714.7%5000
92.3%
54Ayito 0.2.9942251+10−1035.6%+119.013.1%4800
61.5%
 Hamsters 0.22248+21−2151.4%−20.916.8%1000
94.9%
55Betsy Fischer2227+12−1237.3%+105.016.0%3400
99.9%
56Robocide 0.42192+19−2045.0%+39.319.1%1000
96.0%
 Hussar 0.22168+19−1940.9%+75.814.0%1300
54.5%
57Chispa 4.0.32167+13−1339.3%+88.226.0%2500
100.0%
58Homer 1.022119+14−1448.8%−2.815.3%2300
100.0%
59RamJet 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%
60Taktix 2.23x1888+18−1841.5%+72.413.0%1550
58.4%
61BigLion 2.23x1885+18−1842.9%+64.213.5%1652
87.2%
62Sapeli 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%
63ArcBishop80 2.24a1493+361918.7%+286.49.1%1086
84.2%
64BigLion80 2.23x1477+483516.9%+303.110.1%1068
 

Results matrix

Free engines (best versions only), top 12
#NameELO123456789101112
1Stockfish 1903213850 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
       
2Fire 8.1360353 − 247
+8−202=90
+15
 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
    
3Ethereal 12.75358338.5 − 271.5
+3−236=71
−28
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
    
4SlowChess Blitz 2.4353631 − 279
+7−255=48
−32
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
206 − 94
+158−46=96
−55
198 − 52
+163−17=70
−20
  
5RubiChess 2.1353532.5 − 267.5
+0−235=65
0
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
226 − 74
+178−26=96
−6
   
6Pedone 3.13473 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
157.5 − 76.5
+123−42=69
0
175 − 59
+147−31=56
+13
161 − 73
+128−40=66
−52
155.5 − 44.5
+121−10=69
−2
7Komodo 93414          198 − 102
+144−48=108
−20
 
8Schooner 2.23381 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
  84 − 66
+64−46=40
+14
58.5 − 41.5
+38−21=41
−20
61.5 − 38.5
+42−19=39
−19
111 − 89
+62−40=98
−65
9Nemorino 6.003353   94 − 206
+46−158=96
+55
74 − 226
+26−178=96
+6
76.5 − 157.5
+42−123=69
0
 66 − 84
+46−64=40
−14
 87 − 63
+68−44=38
+8
81 − 69
+55−43=52
−39
117 − 83
+81−47=72
−15
10Demolito 2020-12-243305   52 − 198
+17−163=70
+20
 59 − 175
+31−147=56
−13
 41.5 − 58.5
+21−38=41
+20
63 − 87
+44−68=38
−8
 53.5 − 46.5
+31−24=45
+4
101 − 99
+72−70=58
−19
11Critter 1.6a3288     73 − 161
+40−128=66
+52
102 − 198
+48−144=108
+20
38.5 − 61.5
+19−42=39
+19
69 − 81
+43−55=52
+39
46.5 − 53.5
+24−31=45
−4
 97.5 − 94.5
+63−60=69
−2
12Minic 3.063282     44.5 − 155.5
+10−121=69
+2
 89 − 111
+40−62=98
+65
83 − 117
+47−81=72
+15
99 − 101
+70−72=58
+19
94.5 − 97.5
+60−63=69
+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

Free engines (best versions only), top 12
#NameELO123456789101112
1Stockfish 1903213850 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Fire 8.136030.0 99.9100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Ethereal 12.7535830.00.1 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4SlowChess Blitz 2.435360.00.00.0 53.3100.0100.0100.0100.0100.0100.0100.0
5RubiChess 2.135350.00.00.046.7 100.0100.0100.0100.0100.0100.0100.0
6Pedone 3.134730.00.00.00.00.0 100.0100.0100.0100.0100.0100.0
7Komodo 934140.00.00.00.00.00.0 100.0100.0100.0100.0100.0
8Schooner 2.233810.00.00.00.00.00.00.0 100.0100.0100.0100.0
9Nemorino 6.0033530.00.00.00.00.00.00.00.0 100.0100.0100.0
10Demolito 2020-12-2433050.00.00.00.00.00.00.00.00.0 99.599.8
11Critter 1.6a32880.00.00.00.00.00.00.00.00.00.5 84.0
12Minic 3.0632820.00.00.00.00.00.00.00.00.00.216.0 
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
White score
Number of 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 reference list to current one using all common engines
  Recalibrate current list to reference using selected engines only
  Recalibrate current list to reference using all common engines


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