CCRL 40/2 FRC
Downloads and Statistics
April 19, 2021
Testing summary:
Total: 327'860 games
played by 250 programs

White wins: 131'950 (40.2%)
Black wins: 111'596 (34.0%)
Draws: 84'314 (25.7%)
White score: 53.1%

Free engines

Comparing 199 engines!
64 best versions of selected engines played 46548 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 April 19, 2021 with Bayeselo based on 327'860 games
Please refer to the "about" page for comments on engine inclusion
RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
ELO+
1Stockfish 1903213859+14−1478.1%−211.437.0%2160 
100.0%
 Stockfish 1101213821+14−1471.2%−156.440.6%1810
83.9%
 Stockfish 133811+14−1470.2%−145.943.6%1850
100.0%
 Stockfish 123773+11−1167.7%−129.442.0%3050
95.1%
 Stockfish 1707203760+13−1372.1%−154.938.2%2350
100.0%
 Stockfish 103716+11−1177.6%−196.335.6%3612
100.0%
 Stockfish 93667+13−1377.3%−213.134.8%2400
99.8%
 Stockfish 1809173640+14−1477.9%−221.033.0%2100
98.9%
2Fire 83618+11−1147.9%+16.938.5%3300
66.2%
 Stockfish 83614+11−1172.7%−180.536.9%3300
99.9%
3Ethereal 12.753588+10−1043.7%+50.037.0%3680
99.8%
 Ethereal 12.503567+10−1051.5%−8.441.0%3440
66.7%
 Stockfish 2005163563+16−1678.0%−230.727.1%1800
97.5%
4RubiChess 2.13541+11−1145.3%+38.134.5%3300
81.2%
5SlowChess Blitz 2.43535+9−943.6%+53.833.5%4932
61.5%
 Stockfish 1503163532+15−1575.2%−199.731.6%1800
90.2%
 Ethereal 12.003519+10−1046.3%+29.438.5%3528
97.7%
 Stockfish 2008153499+15−1571.6%−168.731.6%1800
71.0%
 SlowChess Blitz 2.23493+11−1141.8%+61.833.6%3278
61.6%
 Ethereal 11.753491+12−1254.9%−38.839.0%2600
78.1%
 Fire 7.13486+7−853.3%−32.240.2%7534
82.9%
 RubiChess 2.03478+14−1448.2%+18.234.0%1814
90.7%
 Ethereal 11.503465+12−1251.9%−17.937.4%2464
63.4%
 Stockfish 63462+13−1370.9%−161.832.6%2400
100.0%
6Komodo 93415+15−1569.8%−151.730.2%1800
63.2%
 Stockfish 0405143412+15−1579.7%−245.923.0%2100
50.9%
 Fire 6.13411+12−1249.3%−0.231.5%2920
54.0%
 SlowChess Blitz 2.13411+13−1339.2%+80.834.5%2200
67.7%
 RubiChess 1.93406+13−1342.9%+49.431.5%2260
76.4%
7Pedone 3.03400+12−1239.1%+74.734.6%2422
98.0%
8Schooner 2.23385+8−938.7%+78.636.1%5132
98.5%
 Fire 53369+10−1142.6%+52.329.2%3900
74.5%
 SlowChess Blitz 2.03364+11−1149.3%+6.632.8%3062
74.7%
9Nemorino 6.003358+13−1441.7%+58.229.6%2052
85.8%
 Stockfish DD3347+15−1474.9%−200.025.0%2100
84.2%
 Nemorino 6.053336+15−1548.8%+7.928.8%1666
98.9%
10Demolito 2020-12-243314+13−1341.5%+61.832.0%2306
91.1%
 Stockfish 1609133301+14−1464.6%−118.128.9%2100
68.3%
 Demolito 2021-04-033296+14−1444.7%+37.833.7%1874
79.4%
11Critter 1.6a3290+6−642.1%+59.429.2%17150
93.4%
 Pedone 2.03280+12−1245.7%+30.035.7%2480
85.4%
 SlowChess Blitz 1.93270+15−1540.1%+81.933.9%1700
99.6%
 Critter 1.23234+21−2072.2%−176.025.6%1000
56.6%
 Demolito 2020-02-053232+15−1545.8%+28.433.7%1500
65.2%
 Stockfish 33228+13−1369.2%−157.424.3%2700
51.0%
 SlowChess Blitz 1.83227+20−2048.6%+8.840.1%800
94.0%
 Pedone 1.93209+13−1338.3%+88.131.8%2300
76.6%
12‑13Senpai 2.03204+9−947.7%+17.331.5%4330
46.1%
12‑13Vajolet2 2.83204+11−1050.7%−5.235.5%3284
53.8%
 Stockfish 2.3.13203+15−1556.7%−56.029.3%1700
84.1%
 Stockfish 2.2.13191+18−1864.1%−109.827.0%1200
51.4%
 Stockfish VE_093191+16−1653.8%−37.329.5%1600
64.2%
 Stockfish 2.1.13186+19−1966.3%−123.828.6%1100
57.2%
 Stockfish 2.2.23184+20−2066.3%−126.128.5%1000
75.5%
 Nemorino 5.003176+12−1150.1%−0.831.6%2924
52.3%
 Demolito 2019-02-063175+16−1650.4%−4.529.9%1516
59.0%
 Fire 3.03173+9−931.8%+157.521.2%7200
79.1%
14Stash 29.03166+14−1451.2%−10.228.6%1952
63.2%
 Pedone 1.83162+19−1952.5%−22.432.3%1000
54.6%
 Critter 1.013161+20−2064.0%−109.428.7%900
97.5%
15Minic 3.043136+13−1351.5%−11.628.5%2274
48.7%
 Stockfish 2.0.13136+18−1768.7%−144.926.8%1300
63.8%
 Nemorino 4.003131+20−2052.2%−18.027.6%1000
61.7%
 Stockfish 1.83127+19−1971.7%−166.823.9%1100
85.6%
16Monolith 23115+11−1152.3%−18.829.7%2932
59.5%
 Stockfish 1.73111+22−2271.5%−162.327.3%800
56.8%
 Stockfish 1.9.13109+25−2473.0%−179.921.7%700
61.7%
 Critter 0.903104+20−2064.4%−110.625.8%1000
57.5%
 Stash 28.03101+15−1548.2%+11.328.6%1540
76.1%
 Nemorino 3.04a3092+20−2047.6%+21.029.8%1000
93.1%
17Naum 4.63077+8−846.4%+29.324.6%8052
80.4%
 SlowChess Blitz 1.53069+17−1852.0%−18.428.1%1208
48.3%
 Stash 27.03069+16−1652.6%−20.327.2%1524
76.5%
 Minic 3.033060+18−1852.8%−20.626.6%1100
97.2%
18Rodent IV v0.263041+11−1046.2%+26.030.5%3314
64.5%
 Critter 0.803036+19−1955.4%−48.027.1%1000
52.0%
 Stockfish 1.63035+22−2264.6%−110.426.1%800
78.3%
 Minic 2.483023+20−2053.0%−21.223.9%960
98.2%
 Minic 2.212998+15−1549.2%+5.024.6%1750
94.3%
19Cheng 4.402981+15−1542.3%+52.525.3%1758
61.6%
 Demolito 2017-08-262978+15−1541.3%+66.925.9%1800
100.0%
20Spike 1.4 Leiden2941+8−837.1%+101.122.4%7978
60.4%
 Stockfish 1.5.12938+19−1955.2%−39.623.8%1000
99.1%
21Bobcat 8.02910+12−1238.3%+86.725.4%2584
88.4%
22EXchess 7.92b2900+12−1241.5%+65.124.3%2570
73.4%
 EXchess 7.71b2894+14−1538.6%+90.123.1%1900
86.0%
 Cheng 4.392884+12−1243.2%+53.122.7%2570
97.1%
 Bobcat 7.62863+18−1852.0%−15.524.8%1100
65.8%
23The Baron 3.442858+16−1653.8%−28.625.8%1310
97.8%
 Cheng4 0.382833+17−1745.2%+39.820.4%1300
56.9%
 Minic 1.152831+20−2048.6%+7.924.8%870
71.6%
24‑25Cheese 2.22823+19−1947.3%+19.223.6%1000
48.5%
24‑25Cyclone xTreme Fear2823+9−947.3%+20.021.2%6420
82.5%
 EXchess 7.18b2816+14−1446.9%+25.422.1%1900
66.0%
 Bobcat 7.12811+18−1849.5%+3.525.1%1100
65.8%
26Tornado 8.02806+16−1653.1%−23.122.2%1520
59.1%
 Toga CMLX 1.4.5e2802+22−2251.4%−7.425.9%700
76.1%
 Glaurung 2.22793+14−1458.3%−70.519.8%2200
71.5%
 The Baron 3.292787+16−1646.9%+22.323.1%1500
59.3%
27Arminius 2018-12-232784+17−1747.9%+15.322.2%1310
63.1%
28GNU Chess 5.602781+11−1145.7%+32.523.6%3220
86.2%
 Cheng4 0.36a2772+13−1355.8%−46.819.8%2600
92.7%
 Fruit 0511032760+10−1057.0%−58.722.6%4100
62.0%
 Cheese 2.02757+17−1750.7%−5.026.1%1300
50.1%
 GNU Chess 5.502757+13−1354.2%−33.419.0%2500
58.3%
29Octochess 51902755+12−1251.6%−13.124.2%2820
58.5%
 Tornado 4.882753+11−1153.0%−24.018.7%3500
52.7%
 Fruit 2.32752+20−2064.0%−108.125.0%1000
96.8%
 Glaurung 2.12729+15−1451.0%−10.619.8%2000
72.6%
30Bright 0.4a2724+9−955.2%−42.319.9%5920
76.5%
 Fruit 2.2.12716+18−1856.6%−53.324.1%1200
56.5%
31Karballo 1.82714+17−1753.6%−27.024.6%1210
62.6%
 Spike 1.2 Turin2711+9−953.4%−29.023.0%5500
55.8%
32Frenzee 3.5.192710+11−1154.3%−34.616.2%3920
77.5%
 Cheese 1.9.12702+16−1650.6%−4.921.6%1400
72.4%
 Glaurung 2.0.12696+15−1548.0%+8.522.6%1900
52.8%
 Arminius 2017-01-012695+17−1755.2%−39.520.8%1310
70.1%
 EXchess 6.50b2689+13−1352.0%−14.619.7%2300
52.2%
 Tornado 4.42689+13−1357.5%−60.918.8%2500
100.0%
33DanaSah 8.302644+17−1747.3%+19.025.3%1200
72.2%
 Cheese 1.82636+19−1948.1%+13.520.6%1100
51.2%
 Glaurung 1.2.12636+13−1346.6%+23.221.4%2400
95.6%
34Fridolin 3.002618+15−1546.0%+29.619.6%1730
73.6%
35Dumb 1.82610+20−2046.4%+28.117.3%1000
53.7%
36‑37Daydreamer 1.752609+9−948.2%+14.321.8%5370
53.2%
36‑37Nebula 2.02609+10−1047.1%+23.820.5%4470
91.2%
38Alfil 13.12596+15−1549.7%+2.219.5%1570
72.2%
 DanaSah 7.902590+15−1555.6%−41.420.5%1640
57.4%
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
51.1%
40Movei 00.8.4382569+8−746.5%+27.619.7%8070
73.0%
 DanaSah 7.302563+16−1551.9%−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+7−745.9%+32.219.1%8670
55.9%
 The Baron 2.232545+10−1048.3%+12.517.1%4500
70.2%
 Arminius 2015-08-062540+18−1748.9%+8.221.1%1200
62.5%
42Galjoen 0.40.12536+18−1848.9%+7.421.3%1168
55.5%
43Hermann 2.82534+10−1149.7%+1.416.9%4060
88.2%
44Amyan 1.722526+9−948.5%+11.917.9%4920
55.4%
45Jonny 2.832525+9−948.4%+12.816.0%5320
55.9%
 Fridolin 2.002524+15−1550.4%−2.822.3%1600
59.6%
 Maverick 1.02521+18−1851.3%−9.720.8%1200
69.8%
46Hamsters 0.7.12516+9−948.3%+13.119.8%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
54.0%
 DanaSah 5.072492+18−1855.5%−41.522.7%1100
55.5%
 Galjoen 0.41.12489+29−2939.4%+79.718.0%450
61.8%
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+15−1541.4%+72.617.5%1900
65.4%
 DanaSah 5.002467+16−1651.6%−13.520.3%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+22−2245.5%+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%−22.517.0%600
72.6%
 Hamsters 0.52426+22−2240.1%+79.617.7%900
82.2%
 Nebula 1.02413+17−1748.7%+7.618.8%1300
76.5%
48LittleThought 1.0522405+11−1044.2%+44.517.4%4010
78.6%
 Hermann 2.02397+17−1839.3%+87.416.8%1400
90.7%
 Hamsters 0.42379+21−2238.6%+90.718.3%900
70.0%
 SlowChess 2.960d2373+13−1344.4%+42.418.5%2600
53.4%
 Galjoen 0.39.22372+19−1948.5%+9.820.6%1000
91.3%
 Tornado 2.1.41a2353+18−1841.1%+69.720.0%1300
66.8%
 Hermann 1.92346+24−2442.4%+64.416.0%700
54.8%
 Maverick 0.602344+20−2050.4%−3.615.6%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 1.72302+23−2344.9%+40.115.4%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
61.2%
 Hamsters 0.22248+21−2151.4%−20.816.8%1000
95.0%
55Betsy Fischer2227+12−1237.3%+105.016.0%3400
99.9%
56Robocide 0.42192+19−2045.0%+39.219.1%1000
95.8%
 Hussar 0.22168+18−1940.9%+75.914.0%1300
54.8%
57Chispa 4.0.32167+13−1339.3%+88.226.0%2500
100.0%
58Homer 1.022119+14−1448.8%−2.915.3%2300
100.0%
59RamJet 0.142020+18−1854.3%−44.314.5%1434
98.4%
 Galjoen 0.35.21989+22−2326.8%+189.917.2%900
88.1%
 RamJet 0.121967+32−3329.9%+158.518.8%400
100.0%
60Taktix 2.23x1895+20−2041.1%+74.712.2%1400
88.5%
61BigLion 2.23x1879+19−1941.4%+78.713.0%1500
100.0%
62Sapeli 1.201786+22−2259.5%−87.19.8%1056
78.2%
 Sapeli 1.021773+22−2246.4%+33.512.2%1100
98.5%
 Stash 11.0.11732+29−2854.4%−38.010.8%600
83.7%
 Sapeli 1.161707+36−3819.4%+271.312.3%400
100.0%
63ArcBishop80 2.24a1494+341320.4%+268.59.4%916
87.1%
64BigLion80 2.23x1476+473218.1%+288.310.6%906
 

Results matrix

Free engines (best versions only), top 12
#NameELO123456789101112
1Stockfish 1903213859 259 − 51
+213−5=92
+1
271.5 − 38.5
+236−3=71
+24
267.5 − 32.5
+235−0=65
−2
279 − 31
+255−7=48
+22
       
2Fire 8361851 − 259
+5−213=92
−1
 115.5 − 94.5
+55−34=121
−1
183.5 − 116.5
+111−44=145
−9
133 − 77
+86−30=94
0
 158.5 − 51.5
+121−14=75
−46
176 − 34
+146−4=60
+14
    
3Ethereal 12.75358838.5 − 271.5
+3−236=71
−24
94.5 − 115.5
+34−55=121
+1
 172.5 − 127.5
+96−51=153
−2
115 − 85
+62−32=106
−8
 148.5 − 51.5
+120−23=57
−16
155 − 45
+124−14=62
−11
    
4RubiChess 2.1354132.5 − 267.5
+0−235=65
+2
116.5 − 183.5
+44−111=145
+9
127.5 − 172.5
+51−96=153
+2
 150 − 150
+89−89=122
−4
 224.5 − 75.5
+172−23=105
+26
213 − 87
+169−43=88
−9
226 − 74
+178−26=96
−7
   
5SlowChess Blitz 2.4353531 − 279
+7−255=48
−22
77 − 133
+30−86=94
0
85 − 115
+32−62=106
+8
150 − 150
+89−89=122
+4
  102 − 48
+73−19=58
−18
178 − 72
+145−39=66
+2
206 − 94
+158−46=96
−49
198 − 52
+163−17=70
−10
  
6Komodo 93415          198 − 102
+144−48=108
−19
 
7Pedone 3.03400 51.5 − 158.5
+14−121=75
+46
51.5 − 148.5
+23−120=57
+16
75.5 − 224.5
+23−172=105
−26
48 − 102
+19−73=58
+18
  73.5 − 76.5
+49−52=49
−21
84.5 − 65.5
+59−40=51
0
92 − 58
+70−36=44
−8
  
8Schooner 2.23385 34 − 176
+4−146=60
−14
45 − 155
+14−124=62
+11
87 − 213
+43−169=88
+9
72 − 178
+39−145=66
−2
 76.5 − 73.5
+52−49=49
+21
 84 − 66
+64−46=40
+15
58.5 − 41.5
+38−21=41
−15
61.5 − 38.5
+42−19=39
−21
76.5 − 23.5
+62−9=29
+6
9Nemorino 6.003358   74 − 226
+26−178=96
+7
94 − 206
+46−158=96
+49
 65.5 − 84.5
+40−59=51
0
66 − 84
+46−64=40
−15
 87 − 63
+68−44=38
+12
81 − 69
+55−43=52
−42
 
10Demolito 2020-12-243314    52 − 198
+17−163=70
+10
 58 − 92
+36−70=44
+8
41.5 − 58.5
+21−38=41
+15
63 − 87
+44−68=38
−12
 53.5 − 46.5
+31−24=45
−2
65 − 35
+49−19=32
−7
11Critter 1.6a3290     102 − 198
+48−144=108
+19
 38.5 − 61.5
+19−42=39
+21
69 − 81
+43−55=52
+42
46.5 − 53.5
+24−31=45
+2
 60 − 40
+46−26=28
−16
12Senpai 2.03204       23.5 − 76.5
+9−62=29
−6
 35 − 65
+19−49=32
+7
40 − 60
+26−46=28
+16
 
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 1903213859 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Fire 836180.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
3Ethereal 12.7535880.00.0 100.0100.0100.0100.0100.0100.0100.0100.0100.0
4RubiChess 2.135410.00.00.0 81.2100.0100.0100.0100.0100.0100.0100.0
5SlowChess Blitz 2.435350.00.00.018.8 100.0100.0100.0100.0100.0100.0100.0
6Komodo 934150.00.00.00.00.0 92.799.9100.0100.0100.0100.0
7Pedone 3.034000.00.00.00.00.07.3 98.0100.0100.0100.0100.0
8Schooner 2.233850.00.00.00.00.00.12.0 100.0100.0100.0100.0
9Nemorino 6.0033580.00.00.00.00.00.00.00.0 100.0100.0100.0
10Demolito 2020-12-2433140.00.00.00.00.00.00.00.00.0 100.0100.0
11Critter 1.6a32900.00.00.00.00.00.00.00.00.00.0 100.0
12Senpai 2.032040.00.00.00.00.00.00.00.00.00.00.0 
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
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)
  Recalibrate reference list to current one using selected engines only
  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 April 19, 2021