CCRL 40/40
Downloads and Statistics
October 19, 2019
Testing summary:
Total: 1'092'341 games
played by 2'556 programs
149261 CPU days (X2 4600+)

White wins: 378'952 (34.7%)
Black wins: 281'710 (25.8%)
Draws: 431'679 (39.5%)
White score: 54.5%

Free 4-CPU engines

Comparing 300 engines!
81 best versions of selected engines played 10769 games with each other

CCRL 40/40 Rating List — Free 4-CPU engines (Quote)

Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Computed on October 19, 2019 with Bayeselo based on 1'092'341 games

Color legend: Commercial, Free, Open source, Private.
Bold font - tested with 200 games or more. Normal font - less than 200 games.

RankNameRatingScoreAverage
Opponent
DrawsGamesLOS
Elo+
1SugaR NN 1.1 64-bit 4CPU3489+23−2374.4%−164.745.2%626 
92.2%
 SugaR 1.6.1 64-bit 4CPU3464+25−2569.0%−118.557.4%479
51.5%
 Stockfish 10 64-bit 4CPU3463+17−1772.0%−146.551.8%1179
67.7%
 ShashChess 8.0 64-bit 4CPU3457+23−2368.7%−116.059.7%544
54.6%
 Stockfish 270918 64-bit 4CPU3455+28−2777.9%−189.243.3%457
86.0%
 SugaR XPrO 1.5.3 64-bit 4CPU3434+24−2471.8%−143.451.3%544
55.3%
 Stockfish 9 64-bit 4CPU3433+15−1572.3%−153.650.5%1423
95.6%
 SugaR XPrO 1.4 64-bit 4CPU3412+20−2072.3%−150.451.8%840
55.6%
 asmFish 051117 64-bit 4CPU3410+20−1969.8%−130.455.7%819
75.5%
 SugaR XPrO 1.2 64-bit 4CPU3400+21−2070.4%−136.152.5%754
62.4%
 ShashChess Pro 1.0 64-bit 4CPU3394+33−3365.6%−94.561.7%256
78.0%
 Stockfish 8 64-bit 4CPU3379+14−1365.1%−96.462.1%1647
64.5%
 SugaR XPrO 1.3 64-bit 4CPU3374+23−2266.0%−102.957.4%598
95.0%
2Komodo 10 64-bit 4CPU3347+23−2276.6%−172.844.0%700
84.6%
3Ethereal 11.53 64-bit 4CPU3329+23−2352.4%−12.763.6%506
56.2%
 Stockfish 7 64-bit 4CPU3327+15−1567.0%−106.357.3%1304
65.9%
4Fire 7.1 64-bit 4CPU3322+14−1454.0%−25.060.3%1575
74.8%
5Xiphos 0.5 64-bit 4CPU3314+20−2044.0%+38.864.1%669
63.7%
 Komodo 9 64-bit 4CPU3309+20−2070.4%−124.352.7%804
68.4%
 Ethereal 11.25 64-bit 4CPU3301+21−2146.3%+23.965.5%588
51.8%
 Ethereal 11.00 64-bit 4CPU3300+19−1947.0%+18.563.2%778
50.7%
 RofChade 2.2 64-bit 4CPU3300+62−6347.7%+10.070.3%64
59.3%
 Stockfish 6 64-bit 4CPU3292+14−1465.3%−94.557.3%1542
52.8%
6Defenchess 2.2 64-bit 4CPU3291+24−2444.6%+35.458.8%512
55.7%
 Fire 6.1 64-bit 4CPU3288+18−1848.5%+8.258.4%940
59.0%
 Komodo 8 64-bit 4CPU3286+16−1669.8%−127.049.0%1298
58.8%
7Laser 1.7 64-bit 4CPU3282+20−2044.5%+35.761.9%678
50.6%
 RofChade 2.202 64-bit 4CPU3282+87−9036.8%+76.367.6%34
54.5%
8Fizbo 2 64-bit 4CPU3277+13−1345.0%+30.255.6%1753
52.5%
 Ethereal 10.55 64-bit 4CPU3276+25−2449.8%−2.157.4%488
65.3%
9Andscacs 0.95 64-bit 4CPU3269+20−2040.9%+57.058.1%738
50.3%
 Stockfish 5 64-bit 4CPU3269+15−1567.9%−110.653.7%1324
61.0%
 Fire 5 64-bit 4CPU3266+18−1846.9%+17.862.5%867
54.7%
 Andscacs 0.94 64-bit 4CPU3264+18−1847.2%+18.454.2%907
50.1%
10Booot 6.3.1 64-bit 4CPU3264+15−1543.0%+44.057.2%1238
76.1%
 Fizbo 1.9 64-bit 4CPU3255+17−1745.7%+26.755.5%1004
60.5%
 Xiphos 0.4 64-bit 4CPU3252+19−1943.8%+39.261.1%830
52.8%
11RofChade 2.1 64-bit 4CPU3251+25−2544.4%+36.960.0%452
50.9%
 Arasan 21.4 64-bit 4CPU3250+71−7057.8%−64.043.8%64
59.3%
 Andscacs 0.921 64-bit 4CPU3241+16−1650.7%−6.647.5%1225
52.1%
 Andscacs 0.93 64-bit 4CPU3240+18−1842.9%+45.554.8%938
65.6%
 Stockfish DD 64-bit 4CPU3235+17−1763.2%−79.655.9%1018
64.4%
 Andscacs 0.91 64-bit 4CPU3230+22−2242.5%+47.259.2%596
53.0%
 Komodo 7a 64-bit 4CPU3228+18−1860.7%−64.759.0%897
64.4%
 Andscacs 0.89 64-bit 4CPU3223+21−2145.9%+28.655.0%662
57.9%
 Komodo TCEC 64-bit 4CPU3220+18−1862.0%−75.155.0%911
54.6%
 Booot 6.2 64-bit 4CPU3219+14−1442.3%+49.659.3%1442
49.6%
 Laser 1.6 64-bit 4CPU3219+17−1742.7%+48.956.1%1049
58.0%
 Andscacs 0.88 64-bit 4CPU3215+31−3142.6%+45.855.8%312
51.6%
12Schooner 2.1 64-bit 4CPU3214+23−2344.1%+37.555.0%536
57.8%
 Komodo 6 64-bit 4CPU3211+17−1758.6%−52.256.7%1065
60.7%
 Andscacs 0.90 64-bit 4CPU3207+24−2450.3%+2.855.1%515
52.9%
 Stockfish 4 64-bit 4CPU3206+17−1760.9%−64.158.9%1054
62.7%
 Schooner 2.0.34 64-bit 4CPU3202+20−2049.3%+3.357.9%734
52.7%
 Komodo 5.1 64-bit 4CPU3201+20−2061.8%−72.354.8%715
51.9%
 Andscacs 0.872 64-bit 4CPU3200+24−2451.3%−4.958.8%476
53.4%
 Fire 4 64-bit 4CPU3199+13−1346.5%+21.859.7%1885
55.6%
13Arasan 21.3 64-bit 4CPU3196+32−3244.5%+40.456.4%282
62.0%
 Ethereal 10.00 64-bit 4CPU3190+20−2053.4%−22.950.8%788
62.9%
14Houdini 1.5a 64-bit 4CPU3186+18−1862.7%−83.944.9%977
67.5%
15‑16Gull 3 64-bit 4CPU3181+9−941.7%+53.054.5%3651
51.5%
15‑16NirvanaChess 2.4 64-bit 4CPU3181+14−1440.5%+62.553.6%1687
52.4%
 Fizbo 1.8 64-bit 4CPU3180+21−2143.6%+42.849.7%708
50.3%
 Xiphos 0.3 64-bit 4CPU3180+21−2149.2%+3.154.2%660
51.5%
 Gull 2.8b 64-bit 4CPU3179+19−1949.1%+3.851.8%797
56.7%
 RofChade 2.0 64-bit 4CPU3177+21−2149.7%+0.957.7%620
55.3%
17Equinox 3.20 64-bit 4CPU3175+11−1141.6%+54.259.3%2520
52.7%
18ChessBrainVB 3.72 4CPU3174+31−3145.2%+29.051.3%302
52.5%
 Arasan 21.2 64-bit 4CPU3172+30−3052.2%−11.860.6%302
58.0%
 Arasan 21.1 64-bit 4CPU3168+27−2751.2%−7.459.5%383
51.0%
 Booot 6.1 64-bit 4CPU3168+20−2041.6%+51.760.6%708
52.1%
 Stockfish 3 64-bit 4CPU3167+21−2156.0%−35.557.8%663
62.6%
 Equinox 3.30 64-bit 4CPU3162+18−1843.9%+39.058.9%896
50.6%
19RubiChess 1.5 64-bit 4CPU3162+30−3053.0%−17.653.2%314
55.3%
20Critter 1.6a 64-bit 4CPU3160+8−845.3%+31.654.6%5429
76.5%
21Hannibal 1.7 64-bit 4CPU3154+14−1441.8%+51.354.5%1487
54.5%
22Nemorino 5.00 64-bit 4CPU3153+19−1948.9%+4.652.7%856
49.2%
 NirvanaChess 2.3 64-bit 4CPU3153+18−1841.4%+55.256.8%869
56.0%
 Fire 3.0 64-bit 4CPU3151+17−1749.5%+2.358.2%948
54.0%
23Bouquet 1.8 64-bit 4CPU3150+11−1143.6%+41.056.7%2427
58.5%
 Stockfish 2.2.2 64-bit 4CPU3148+16−1659.2%−56.953.4%1141
53.5%
 Critter 1.2 64-bit 4CPU3146+20−2058.9%−54.552.9%762
52.5%
 Critter 1.4 64-bit 4CPU3146+19−1960.7%−65.653.7%843
51.0%
 Andscacs 0.86 64-bit 4CPU3145+20−2141.5%+55.054.9%703
52.9%
 Laser 1.5 64-bit 4CPU3144+20−2049.4%+8.254.5%723
51.0%
24Texel 1.07 64-bit 4CPU3144+14−1449.8%+3.249.3%1604
52.6%
 Gull 2.3 64-bit 4CPU3143+17−1747.4%+14.859.3%982
49.8%
 Stockfish 2.3.1 64-bit 4CPU3143+19−1955.4%−33.152.5%846
57.5%
25Pedone 1.8 64-bit 4CPU3140+29−2945.9%+23.257.6%328
50.5%
 NirvanaChess 2.2 64-bit 4CPU3139+17−1840.7%+60.457.5%961
50.9%
26Protector 1.9.0 64-bit 4CPU3139+15−1546.3%+25.854.1%1313
55.5%
27Alfil 15.7 64-bit 4CPU3138+17−1742.9%+47.856.3%1006
51.5%
28Vajolet2 2.6.1 64-bit 4CPU3137+21−2150.8%−4.560.3%605
51.7%
 Pedone 1.9 64-bit 4CPU3136+47−4754.5%−27.362.8%121
52.5%
 Andscacs 0.85 64-bit 4CPU3134+25−2543.9%+42.653.1%467
53.1%
 Sting SF 6 64-bit 4CPU3133+28−2850.8%−6.761.0%354
50.5%
 Bouquet 1.5 64-bit 4CPU3132+23−2346.4%+20.863.6%500
50.4%
 Sting SF 4.8.4 64-bit 4CPU3132+29−2953.3%−20.562.4%330
50.3%
 Texel 1.06 64-bit 4CPU3132+20−2046.1%+25.553.6%739
50.8%
 Wasp 3.60 64-bit 4CPU3131+58−5943.6%+31.964.1%78
53.9%
 DeepSaros 4.1.6 64-bit 4CPU3128+26−2645.2%+28.957.5%419
50.6%
 Stockfish 2.0.1 64-bit 4CPU3128+24−2456.4%−40.648.6%514
56.8%
 ChessBrainVB 3.68 4CPU3125+26−2649.2%+4.051.6%428
49.6%
 Gull 3.1 64-bit 4CPU3125+30−3045.4%+33.445.1%359
49.9%
 Protector 1.8.0 64-bit 4CPU3125+28−2850.4%−1.654.7%386
54.1%
29BlackMamba 2.0 64-bit 4CPU3123+14−1544.2%+38.254.3%1408
56.7%
 Arasan 20.4.1 64-bit 4CPU3121+25−2651.7%−10.850.2%452
54.7%
 Elektro 1.2 64-bit 4CPU3119+23−2346.1%+26.855.5%546
49.2%
 Fizbo 1.7 64-bit 4CPU3119+27−2756.1%−38.452.5%396
51.9%
 Sting SF 5 64-bit 4CPU3118+25−2548.1%+12.854.0%465
55.1%
 Stockfish 1.9.1 64-bit 4CPU3116+23−2362.1%−81.246.6%595
55.9%
 IvanHoe 9.46h 64-bit 4CPU3114+14−1453.2%−19.559.5%1542
49.6%
 Stockfish 2.1.1 64-bit 4CPU3114+27−2754.7%−29.048.3%406
54.2%
 RobboLito 0.21Q 64-bit 4CPU3112+22−2250.9%−5.962.7%569
51.5%
30Senpai 2.0 64-bit 4CPU3112+20−2051.6%−12.648.6%780
51.9%
 Hannibal 1.5 64-bit 4CPU3111+19−1953.2%−20.757.1%819
54.9%
 Bouquet 1.6 64-bit 4CPU3109+21−2150.0%−0.360.7%641
48.9%
 Sting SF 3 64-bit 4CPU3109+21−2147.7%+12.258.5%644
52.3%
 Sting SF 2 64-bit 4CPU3108+27−2748.8%+8.858.1%375
51.4%
 Stockfish 1.8 64-bit 4CPU3108+19−1962.2%−82.049.3%850
52.8%
 ChessBrainVB 3.66 4CPU3107+28−2854.2%−27.448.7%378
49.0%
 Sting SF 9 64-bit 4CPU3107+31−3149.8%−0.346.9%307
54.8%
 Andscacs 0.83 64-bit 4CPU3105+29−2946.6%+18.551.2%338
50.1%
 Stockfish 1.7.1 64-bit 4CPU3104+19−1960.7%−69.452.8%860
52.9%
 Xiphos 0.2.2 64-bit 4CPU3103+26−2647.3%+14.353.6%414
53.3%
31Wasp 3.50 64-bit 4CPU3102+19−1950.4%−4.953.6%785
58.2%
 Gull 2.2 64-bit 4CPU3098+25−2544.5%+31.554.8%469
51.5%
 Vajolet2 2.5 64-bit 4CPU3098+24−2451.5%−9.954.0%493
55.4%
32Naum 4.6 64-bit 4CPU3096+14−1448.1%+11.554.3%1544
49.1%
 Nemorino 4.00 64-bit 4CPU3096+22−2250.0%+1.452.9%624
50.1%
 NirvanaChess 2.1c 64-bit 4CPU3096+22−2345.2%+31.247.7%608
51.6%
 Sting SF 4 64-bit 4CPU3095+23−2341.9%+49.448.9%562
61.4%
 Arasan 20.3 64-bit 4CPU3089+32−3252.5%−19.647.4%302
50.3%
 Laser 1.4 64-bit 4CPU3089+19−1949.6%+0.645.7%843
53.7%
 Critter 1.01 64-bit 4CPU3088+30−3048.5%+6.557.7%310
49.5%
 Pedone 1.7 64-bit 4CPU3088+19−1948.2%+10.856.4%801
57.9%
 Texel 1.05 64-bit 4CPU3085+17−1747.3%+18.851.4%1016
55.8%
 Andscacs 0.82 64-bit 4CPU3083+29−2950.6%−3.355.2%330
55.8%
 Critter 0.90 64-bit 4CPU3079+31−3147.6%+13.946.5%316
53.6%
 Hannibal 1.4b 64-bit 4CPU3078+15−1542.3%+47.251.3%1332
50.7%
 Andscacs 0.81 64-bit 4CPU3077+31−3148.7%+6.249.3%300
53.9%
 Protector 1.7.0 64-bit 4CPU3076+19−1944.1%+36.450.6%834
51.7%
 Demolito 2019-04-27 64-bit 4CPU3074+66−6650.0%+0.138.9%72
51.7%
 Nemorino 3.0 64-bit 4CPU3072+27−2747.9%+13.546.1%427
52.2%
 Protector 1.6.0 64-bit 4CPU3071+21−2243.2%+44.950.2%656
50.9%
33Rodent III 0.238 64-bit 4CPU3071+20−2047.2%+15.050.0%742
64.6%
 Defenchess 1.1f 64-bit 4CPU3066+18−1951.7%−11.945.3%916
50.3%
 RubiChess 1.3 64-bit 4CPU3066+22−2252.8%−18.044.2%642
55.7%
 Rodent III 0.276 64-bit 4CPU3063+32−3252.7%−13.757.1%273
53.3%
 Wasp 3.0 64-bit 4CPU3061+25−2551.1%−8.155.0%462
56.3%
 Texel 1.04 64-bit 4CPU3059+21−2143.1%+42.547.8%722
54.2%
 Alfil 15.8 64-bit 4CPU3057+22−2253.9%−24.347.9%631
50.8%
 NirvanaChess 2.0a 64-bit 4CPU3057+30−3044.7%+35.650.1%337
50.4%
 Protector 1.5.0 64-bit 4CPU3056+18−1842.5%+48.047.4%952
54.0%
34Demolito 2018-10-29 64-bit 4CPU3054+35−3551.0%−8.851.5%241
51.2%
 Pedone 1.6 64-bit 4CPU3054+23−2349.5%+2.857.7%508
52.1%
35Amoeba 3.0 64-bit 4CPU3053+26−2654.8%−32.644.8%466
52.9%
 Ethereal 9.00 64-bit 4CPU3051+23−2346.8%+19.245.1%570
69.4%
 Vajolet2 2.4 64-bit 4CPU3044+19−1947.2%+17.945.7%878
52.7%
 Vajolet2 2.2 64-bit 4CPU3042+27−2747.0%+15.748.7%423
53.8%
 Stockfish 1.6.3 64-bit 4CPU3041+22−2258.2%−54.644.8%631
52.1%
 Arasan 19.2 64-bit 4CPU3040+31−3151.7%−11.755.0%289
49.1%
 Wasp 2.6 64-bit 4CPU3040+18−1848.9%+8.147.2%968
52.0%
 Gull R375 64-bit 4CPU3039+22−2243.4%+37.657.4%605
59.8%
 Critter 0.80 64-bit 4CPU3035+30−3050.9%−8.848.3%321
51.4%
 Hannibal 1.3 64-bit 4CPU3034+22−2243.0%+42.848.6%642
52.0%
 Pedone 1.5 64-bit 4CPU3033+31−3149.5%+3.251.6%304
50.9%
 Wasp 2.01 64-bit 4CPU3032+30−3055.3%−31.854.5%321
58.0%
 Vajolet2 2.3 64-bit 4CPU3028+31−3145.2%+25.453.5%303
52.0%
36Winter 0.6 64-bit 4CPU3027+35−3456.1%−49.835.2%293
50.4%
 Arasan 20.0 64-bit 4CPU3026+32−3249.6%+3.953.4%283
51.3%
37Bobcat 8.0 64-bit 4CPU3026+21−2148.3%+11.053.5%636
53.2%
 Andscacs 0.80 64-bit 4CPU3024+31−3150.2%−1.346.7%317
49.9%
 Senpai 1.0 64-bit 4CPU3024+16−1646.2%+21.253.5%1095
56.2%
38Pirarucu 2.7.4 64-bit 4CPU3022+21−2255.7%−40.147.0%659
55.7%
 Arasan 19.0.1 64-bit 4CPU3019+34−3354.2%−32.543.1%276
50.7%
 Pirarucu 2.9.5 64-bit 4CPU3019+35−3550.6%−6.051.9%235
50.5%
39Rybka 2.3.2a 64-bit 4CPU3018+13−1363.1%−87.843.9%1906
55.5%
40Spike 1.4 Leiden 4CPU3017+11−1145.2%+29.447.7%2862
60.7%
41‑42Crafty 25.2 64-bit 4CPU3014+16−1648.5%+9.742.5%1279
49.9%
41‑42chess22k 1.10 64-bit 4CPU3014+22−2246.7%+16.943.7%680
53.8%
 Nemorino 2.00 64-bit 4CPU3013+30−3047.0%+15.959.6%302
53.2%
 Laser 1.3 64-bit 4CPU3011+29−3047.2%+15.455.8%321
49.9%
 Texel 1.03 64-bit 4CPU3011+31−3150.3%−1.347.0%313
51.6%
43Cheng 4.39 64-bit 4CPU3010+16−1550.0%+0.349.1%1288
68.6%
 Pedone 1.4.1 64-bit 4CPU3002+30−3048.5%+7.855.7%305
53.9%
 Vajolet2 2.1 64-bit 4CPU3000+25−2550.9%−4.048.5%462
53.4%
 Rodent III 0.210 64-bit 4CPU2998+28−2845.1%+33.142.5%402
58.4%
 Fizbo 1.5 64-bit 4CPU2994+27−2752.6%−16.548.5%410
67.7%
44Scorpio 2.8 64-bit 4CPU2985+25−2549.9%−1.047.2%472
53.7%
 Protector 1.4.0 64-bit 4CPU2983+19−1942.5%+49.542.9%912
55.7%
 Bobcat 7.6 64-bit 4CPU2981+32−3250.2%−1.341.7%300
48.8%
 Cheng4 0.38 64-bit 4CPU2981+24−2446.0%+23.742.4%531
63.0%
 Rybka 2.2 64-bit 4CPU2976+20−2063.6%−93.041.1%859
53.5%
 Arasan 18.3 64-bit 4CPU2974+30−3046.6%+20.746.8%327
54.4%
 Arasan 18.2 64-bit 4CPU2972+28−2851.9%−15.050.3%388
49.7%
45EXchess 7.97b 64-bit 4CPU2972+18−1847.4%+18.545.9%1017
56.9%
46Spark 1.0 64-bit 4CPU2970+13−1345.0%+32.146.6%1787
48.6%
 Stockfish 1.5.1 64-bit 4CPU2970+25−2453.7%−22.747.7%495
63.8%
 Demolito 2017-08-26 64-bit 4CPU2964+21−2140.2%+64.140.8%748
53.6%
 Protector 1.3.6 64-bit 4CPU2963+32−3246.6%+18.444.3%307
49.7%
 Winter 0.5 64-bit 4CPU2963+26−2650.4%−5.638.3%470
58.8%
 EXchess 7.88b 64-bit 4CPU2958+29−2945.4%+29.848.6%356
50.0%
47Toga II 4.0 64-bit 4CPU2958+18−1941.4%+57.340.4%958
54.7%
 Fizbo 1.31 64-bit 4CPU2956+30−2951.1%−6.441.9%358
60.9%
 Crafty 25.0 64-bit 4CPU2951+25−2548.1%+12.547.9%468
53.9%
 Stockfish 1.4 64-bit 4CPU2949+17−1754.2%−28.842.2%1131
56.6%
 Scorpio 2.7.9 64-bit 4CPU2947+22−2246.7%+20.440.5%659
60.0%
48Gaviota 1.0 64-bit 4CPU2943+16−1647.3%+16.445.4%1256
54.2%
49Tucano 7.07 64-bit 4CPU2941+34−3453.0%−18.544.6%271
51.8%
 EXchess 7.51b 64-bit 4CPU2940+33−3350.7%−2.545.7%276
51.8%
50The Baron 3.44 64-bit 4CPU2939+27−2747.2%+17.844.9%412
56.4%
 Arasan 17.5 64-bit 4CPU2936+27−2748.4%+9.645.1%406
50.4%
 Bobcat 7.1 64-bit 4CPU2935+32−3249.1%+5.646.6%294
51.4%
51Marvin 3.3.2 64-bit 4CPU2934+37−3845.4%+27.544.0%218
52.1%
 EXchess 7.71b 64-bit 4CPU2933+28−2853.3%−22.643.2%403
50.8%
 Fizbo 1.4 64-bit 4CPU2933+28−2845.9%+24.844.7%394
48.8%
 Spark 0.4 64-bit 4CPU2933+21−2143.0%+48.945.2%703
53.4%
 Ethereal 8.62 64-bit 4CPU2932+22−2244.2%+35.549.7%600
57.7%
 Spark 0.3 64-bit 4CPU2929+23−2346.5%+20.149.7%572
53.2%
 Arasan 18.0 64-bit 4CPU2927+29−2947.2%+15.641.5%378
50.2%
52Thinker 5.4d Inert 64-bit 4CPU2927+22−2246.0%+24.149.7%587
57.4%
 Thinker 5.4c Inert 64-bit 4CPU2924+15−1548.1%+13.339.4%1502
55.7%
 Marvin 3.2.0 64-bit 4CPU2922+21−2153.7%−26.043.0%698
56.9%
 Toga II 3.0 4CPU2920+22−2345.6%+26.849.0%592
60.7%
53DisasterArea 1.65 64-bit 4CPU2915+21−2144.2%+36.446.1%709
55.0%
54Gogobello 2.0 64-bit 4CPU2913+25−2550.8%−6.639.1%522
53.7%
 Crafty 23.8 64-bit 4CPU2911+34−3447.6%+16.747.2%267
60.6%
 Thinker 5.4a Inert 64-bit 4CPU2906+23−2347.3%+19.645.4%560
50.5%
 Asymptote 0.6 64-bit 4CPU2905+84−8351.3%−13.352.5%40
49.9%
 Toga II 1.4.1SE 4CPU2905+13−1348.5%+10.941.6%2041
54.0%
 The Baron 3.41 64-bit 4CPU2904+20−2039.1%+70.743.8%800
62.7%
 Cheng4 0.36c 64-bit 4CPU2898+30−3048.8%+6.146.6%326
50.6%
55‑57Bright 0.4a 4CPU2897+15−1547.4%+17.541.1%1495
52.4%
55‑57Glaurung 2.2 64-bit 4CPU2897+16−1647.0%+19.040.7%1259
50.1%
55‑57Tornado 6.0 64-bit 4CPU2897+26−2645.5%+27.443.3%469
52.6%
 Tornado 8.0 64-bit 4CPU2896+19−2045.2%+30.239.0%881
53.4%
 Tornado 7.0 64-bit 4CPU2894+25−2545.3%+31.239.2%502
56.3%
 Bright 0.5c 4CPU2892+23−2347.2%+18.842.9%616
57.1%
58Octochess r5506 64-bit 4CPU2889+21−2144.5%+35.546.7%715
55.8%
59MinkoChess 1.3 64-bit 4CPU2887+21−2146.0%+24.143.7%725
52.5%
 Toga II 1.4 beta5c 4CPU2886+18−1851.7%−12.345.8%996
48.4%
 Tornado 4.88 64-bit 4CPU2886+26−2646.0%+24.841.5%479
57.4%
 Pedone 1.3 64-bit 4CPU2883+29−2946.6%+19.751.0%355
51.8%
 Fruit Reloaded 3.2.1 64-bit 4CPU2882+18−1838.8%+74.339.1%1024
56.1%
 Crafty 24.1 64-bit 4CPU2879+31−3243.5%+41.439.1%322
56.8%
 Scorpio 2.7.6 64-bit 4CPU2875+26−2647.4%+17.144.0%445
63.5%
 Glaurung 2.1 64-bit 4CPU2870+18−1942.8%+50.441.3%946
54.8%
 Bobcat 6.4b 64-bit 4CPU2868+27−2748.3%+11.146.5%415
51.6%
 The Baron 3.29 64-bit 4CPU2867+25−2546.3%+22.643.1%489
51.9%
 EXchess 7.18b 64-bit 4CPU2866+33−3347.3%+16.438.4%292
57.9%
 Scorpio 2.7.5 64-bit 4CPU2861+33−3345.7%+24.750.0%266
51.7%
 Gaviota 0.86 64-bit 4CPU2860+24−2453.4%−26.332.6%617
52.8%
 Arasan 16.3 64-bit 4CPU2859+34−3449.1%+4.240.2%276
49.1%
 Crafty 23.4 64-bit 4CPU2859+34−3446.9%+19.635.7%272
54.7%
 Scorpio 2.7.7 64-bit 4CPU2856+32−3242.9%+45.241.3%310
51.7%
60Monolith 1.0 64-bit 4CPU2855+21−2248.6%+8.743.0%693
53.7%
61Counter 3.2 64-bit 4CPU2854+32−3250.7%−5.140.2%301
56.6%
62Igel 1.9.0 64-bit 4CPU2850+31−3241.0%+59.239.5%324
51.1%
 Topple 0.7.0 64-bit 4CPU2849+91−9341.3%+56.827.5%40
52.7%
63Cheese 2.0 64-bit 4CPU2845+30−3046.2%+23.938.6%365
52.6%
64Shield 2.1 64-bit 4CPU2844+24−2448.7%+9.536.0%594
62.7%
65BugChess2 1.9 64-bit 4CPU2839+21−2143.4%+44.138.2%738
51.5%
 Crafty 23.3 64-bit 4CPU2838+31−3241.5%+55.138.2%325
49.1%
66Loop 13.6 (Loop 2007) 64-bit 4CPU2838+19−1948.3%+12.542.8%894
71.5%
 Bright 0.3a 4CPU2831+18−1842.4%+50.841.8%988
53.7%
 Glaurung 2.0.1 64-bit 4CPU2830+17−1743.8%+38.243.5%1100
64.6%
 Octochess r5190 64-bit 4CPU2824+24−2445.9%+23.844.5%555
57.9%
 Pedone 1.1 64-bit 4CPU2820+31−3153.7%−32.039.5%347
51.7%
 Arminius 2018-12-23 64-bit 4CPU2818+44−4544.2%+41.436.4%165
53.3%
67Jonny 4.00 4CPU2816+25−2543.6%+42.735.0%540
71.9%
 Bright 0.2c 4CPU2806+21−2143.9%+40.443.2%724
58.7%
 Pedone 1.2 64-bit 4CPU2802+36−3648.4%+8.742.3%246
64.0%
 Crafty 23.1 64-bit 4CPU2792+36−3743.8%+42.936.9%241
52.7%
 Laser 1.0 64-bit 4CPU2790+37−3836.3%+90.339.2%227
58.8%
 Bagatur 1.7a 64-bit 4CPU2775+131−13445.0%+30.620.0%20
55.1%
 Glaurung 1.2.1 64-bit 4CPU2766+19−1940.2%+64.238.1%967
68.0%
 Crafty 23.0 64-bit 4CPU2760+18−1839.0%+77.434.1%1042
69.4%
68Fridolin 3.10 64-bit 4CPU2749+33−3349.5%+0.231.5%308
55.5%
 Alfil 13.1 64-bit 4CPU2746+28−2841.8%+53.734.1%440
76.5%
 Scorpio 2.0 32-bit 4CPU2732+24−2433.4%+115.536.7%607
64.0%
69Nebula 2.0 64-bit 4CPU2727+20−2045.1%+35.234.1%866
64.9%
 Scorpio 2.1 64-bit 4CPU2720+27−2734.4%+108.831.6%490
81.2%
 Igel 1.4.1 64-bit 4CPU2702+28−2850.7%−7.226.3%448
77.1%
70Hamsters 0.7.1 4CPU2686+32−3252.4%−14.236.2%318
53.9%
71RedQueen 1.1.98 64-bit 4CPU2684+27−2739.4%+80.328.5%494
65.8%
72ECE X3 64-bit 4CPU2677+23−2341.5%+68.123.4%709
56.2%
73Pharaon 3.5.1 4CPU2674+26−2643.6%+41.629.7%518
62.7%
74Jellyfish 1.1 64-bit 4CPU2667+29−2953.3%−24.632.3%403
60.1%
 RedQueen 1.1.97 64-bit 4CPU2663+22−2245.7%+26.733.3%726
71.8%
75Ghost 3.1 64-bit 4CPU2652+30−3053.9%−25.728.5%393
52.9%
76Arminius 2015-08-06 64-bit 4CPU2650+33−3344.2%+38.736.1%302
53.4%
 Gaviota 0.83 64-bit 4CPU2648+25−2547.3%+21.227.9%566
99.6%
 Fridolin 2.00 64-bit 4CPU2589+34−3441.9%+57.231.3%297
93.2%
77Delphil 3.2 64-bit 4CPU2555+31−3138.2%+85.330.5%374
52.3%
78Jazz 840 64-bit 4CPU2554+20−2057.8%−64.125.3%1000
91.2%
79Nemeton 1.8 4CPU2530+27−2749.9%+2.127.2%496
86.5%
80Jumbo 0.6.66 64-bit 4CPU2509+28−2850.0%−0.833.0%433
88.3%
81Myrddin 0.87 64-bit 4CPU2483+35−3538.9%+80.828.4%296
86.0%
 Invictus r228 64-bit 4CPU2340+242−29528.6%+166.90.0%7
 

Results matrix

Free 4-CPU engines (best versions only), top 12
#NameElo123456789101112
1SugaR NN 1.1 64-bit 4CPU3489  24.5 − 7.5
+17−0=15
+6
25.5 − 6.5
+19−0=13
+26
24.5 − 7.5
+17−0=15
−8
26.5 − 5.5
+21−0=11
+30
26.5 − 5.5
+21−0=11
+18
26.5 − 5.5
+22−1=9
+26
27.5 − 4.5
+23−0=9
+46
24.5 − 7.5
+17−0=15
−57
18 − 4
+14−0=8
−21
27 − 5
+22−0=10
−28
2Komodo 10 64-bit 4CPU3347            
3Ethereal 11.53 64-bit 4CPU33297.5 − 24.5
+0−17=15
−6
  16 − 16
+4−4=24
−8
16 − 16
+6−6=20
−15
18.5 − 13.5
+9−4=19
+7
18.5 − 13.5
+6−1=25
−7
17.5 − 14.5
+9−6=17
−24
17 − 15
+5−3=24
−43
20.5 − 10.5
+11−1=19
+26
15.5 − 8.5
+8−1=15
+2
40.5 − 17.5
+25−2=31
+2
4Fire 7.1 64-bit 4CPU33226.5 − 25.5
+0−19=13
−26
 16 − 16
+4−4=24
+8
 16.5 − 21.5
+2−7=29
−41
18 − 14
+5−1=26
0
19 − 13
+7−1=24
+9
25.5 − 20.5
+11−6=29
−15
19.5 − 12.5
+9−2=21
+6
24.5 − 13.5
+12−1=25
+20
14 − 10
+5−1=18
−24
 
5Xiphos 0.5 64-bit 4CPU33147.5 − 24.5
+0−17=15
+8
 16 − 16
+6−6=20
+15
21.5 − 16.5
+7−2=29
+41
 16 − 16
+5−5=22
−24
18 − 14
+5−1=26
−2
21 − 17
+7−3=28
−10
23 − 15
+10−2=26
+10
23 − 15
+9−1=28
+3
13.5 − 9.5
+5−1=17
−18
 
6Defenchess 2.2 64-bit 4CPU32915.5 − 26.5
+0−21=11
−30
 13.5 − 18.5
+4−9=19
−7
14 − 18
+1−5=26
0
16 − 16
+5−5=22
+24
 16 − 16
+6−6=20
−9
19 − 13
+8−2=22
+36
18.5 − 13.5
+7−2=23
+15
16.5 − 15.5
+5−4=23
−19
 21 − 11
+11−1=20
+10
7Laser 1.7 64-bit 4CPU32825.5 − 26.5
+0−21=11
−18
 13.5 − 18.5
+1−6=25
+7
13 − 19
+1−7=24
−9
14 − 18
+1−5=26
+2
16 − 16
+6−6=20
+9
 16 − 14
+6−4=20
+12
16.5 − 15.5
+5−4=23
−5
19 − 13
+7−1=24
+29
14.5 − 9.5
+5−0=19
+18
17.5 − 8.5
+10−1=15
+30
8Fizbo 2 64-bit 4CPU32775.5 − 26.5
+1−22=9
−26
 14.5 − 17.5
+6−9=17
+24
20.5 − 25.5
+6−11=29
+15
17 − 21
+3−7=28
+10
13 − 19
+2−8=22
−36
14 − 16
+4−6=20
−12
 21 − 17
+8−4=26
+20
21.5 − 16.5
+11−6=21
+26
10 − 14
+2−6=16
−70
 
9Andscacs 0.95 64-bit 4CPU32694.5 − 27.5
+0−23=9
−46
 15 − 17
+3−5=24
+43
12.5 − 19.5
+2−9=21
−6
15 − 23
+2−10=26
−10
13.5 − 18.5
+2−7=23
−15
15.5 − 16.5
+4−5=23
+5
17 − 21
+4−8=26
−20
 16.5 − 15.5
+6−5=21
+6
15 − 9
+8−2=14
+54
16 − 10
+11−5=10
+16
10Booot 6.3.1 64-bit 4CPU32647.5 − 24.5
+0−17=15
+57
 10.5 − 20.5
+1−11=19
−26
13.5 − 24.5
+1−12=25
−20
15 − 23
+1−9=28
−3
15.5 − 16.5
+4−5=23
+19
13 − 19
+1−7=24
−29
16.5 − 21.5
+6−11=21
−26
15.5 − 16.5
+5−6=21
−6
 13 − 11
+4−2=18
+9
17.5 − 8.5
+10−1=15
+48
11RofChade 2.1 64-bit 4CPU32514 − 18
+0−14=8
+21
 8.5 − 15.5
+1−8=15
−2
10 − 14
+1−5=18
+24
9.5 − 13.5
+1−5=17
+18
 9.5 − 14.5
+0−5=19
−18
14 − 10
+6−2=16
+70
9 − 15
+2−8=14
−54
11 − 13
+2−4=18
−9
 12 − 12
+4−4=16
−38
12Schooner 2.1 64-bit 4CPU32145 − 27
+0−22=10
+28
 17.5 − 40.5
+2−25=31
−2
  11 − 21
+1−11=20
−10
8.5 − 17.5
+1−10=15
−30
 10 − 16
+5−11=10
−16
8.5 − 17.5
+1−10=15
−48
12 − 12
+4−4=16
+38
 
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
1SugaR NN 1.1 64-bit 4CPU3489 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Komodo 10 64-bit 4CPU33470.0 84.696.497.999.9100.0100.0100.0100.0100.0100.0
3Ethereal 11.53 64-bit 4CPU33290.015.4 69.083.499.099.9100.0100.0100.0100.0100.0
4Fire 7.1 64-bit 4CPU33220.03.631.0 74.898.899.9100.0100.0100.0100.0100.0
5Xiphos 0.5 64-bit 4CPU33140.02.016.625.2 93.298.799.999.9100.0100.0100.0
6Defenchess 2.2 64-bit 4CPU32910.00.11.01.26.8 70.184.491.796.898.8100.0
7Laser 1.7 64-bit 4CPU32820.00.00.10.11.329.9 68.282.792.497.5100.0
8Fizbo 2 64-bit 4CPU32770.00.00.00.00.115.631.8 73.089.396.3100.0
9Andscacs 0.95 64-bit 4CPU32690.00.00.00.00.18.317.327.0 66.087.7100.0
10Booot 6.3.1 64-bit 4CPU32640.00.00.00.00.03.27.610.734.0 81.4100.0
11RofChade 2.1 64-bit 4CPU32510.00.00.00.00.01.22.53.712.318.6 98.3
12Schooner 2.1 64-bit 4CPU32140.00.00.00.00.00.00.00.00.00.01.7 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Rating list
Testing profile
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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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Reference rating list:
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Created in 2005-2013 by CCRL team
Last games added on October 19, 2019