CCRL 40/15
Downloads and Statistics
May 15, 2021
Testing summary:
Total: 1'244'261 games
played by 2'847 programs

White wins: 426'196 (34.3%)
Black wins: 313'011 (25.2%)
Draws: 505'054 (40.6%)
White score: 54.5%

Open source multi-CPU engines

Comparing 213 engines!
44 best versions of selected engines played 2980 games with each other

CCRL 40/15 Rating List — Open source multi-CPU engines (Quote)

Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Computed on May 15, 2021 with Bayeselo based on 1'244'261 games
Please refer to the "about" page for comments on engine inclusion

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+
1Stockfish 13 64-bit 4CPU3548+19−1877.3%−181.245.4%1034 
54.5%
 Stockfish 2021-01-11 64-bit 4CPU3547+19−1975.2%−164.048.8%954
90.2%
 ShashChess 15.0 64-bit 4CPU3528+22−2274.9%−162.949.8%666
74.5%
 SugaR AI 1.00 64-bit 4CPU3517+26−2572.5%−143.453.4%476
56.4%
 Stockfish 12 64-bit 4CPU3514+19−1971.8%−139.956.0%841
95.1%
 Stockfish 2019-10-09 64-bit 4CPU3489+23−2374.7%−156.350.3%616
78.3%
 Stockfish 11 64-bit 4CPU3477+20−1973.0%−143.152.6%840
72.6%
 SugaR NN 1.1 64-bit 4CPU3469+15−1570.8%−131.952.4%1344
77.5%
 Stockfish 10 64-bit 4CPU3461+17−1673.4%−155.750.3%1227
55.2%
 SugaR 1.6.1 64-bit 4CPU3459+25−2569.0%−118.557.4%479
66.3%
 Stockfish 270918 64-bit 4CPU3451+28−2777.9%−189.343.3%457
72.3%
 ShashChess 8.0 64-bit 4CPU3441+15−1565.8%−94.163.7%1206
76.2%
 SugaR XPrO 1.5.3 64-bit 4CPU3430+24−2471.8%−143.651.3%544
54.2%
 Stockfish 9 64-bit 4CPU3429+15−1572.3%−153.350.5%1423
74.5%
2Igel 3.0.5 64-bit 4CPU3416+35−3547.6%+15.375.0%208
64.1%
3RubiChess 2.1 64-bit 4CPU3409+20−2047.7%+15.069.5%643
51.4%
 SugaR XPrO 1.4 64-bit 4CPU3408+20−2072.3%−150.051.8%840
55.2%
 asmFish 051117 64-bit 4CPU3406+20−1969.8%−129.855.7%819
67.9%
 Igel 3.0.0 64-bit 4CPU3399+21−2247.3%+15.870.0%566
55.6%
 SugaR XPrO 1.2 64-bit 4CPU3397+21−2070.4%−136.352.5%754
67.2%
4Ethereal 12.75 64-bit 4CPU3391+15−1548.9%+8.868.1%1224
53.3%
 ShashChess Pro 1.0 64-bit 4CPU3389+33−3365.6%−93.961.7%256
62.6%
5Nemorino 6.00 64-bit 4CPU3383+17−1748.4%+6.461.7%1039
72.2%
 Stockfish 8 64-bit 4CPU3376+14−1365.1%−96.462.1%1647
54.9%
 Nemorino 6.05 64-bit 4CPU3374+23−2344.8%+31.770.6%496
57.7%
 SugaR XPrO 1.3 64-bit 4CPU3371+23−2266.0%−103.157.4%598
71.7%
 Ethereal 12.25 64-bit 4CPU3361+22−2249.3%+5.871.0%544
54.2%
 Igel 2.9.0 64-bit 4CPU3360+16−1648.2%+12.860.6%1050
53.6%
 Igel 2.8.0 64-bit 4CPU3358+25−2553.6%−15.658.2%457
60.5%
 RubiChess 2.0 64-bit 4CPU3354+20−2042.4%+47.669.8%666
65.4%
 Ethereal 12.00 64-bit 4CPU3348+22−2250.9%−3.568.8%564
62.0%
 Ethereal 11.75 64-bit 4CPU3343+21−2147.3%+15.265.0%614
71.9%
6Lc0 0.27.0 w703810 64-bit 4CPU3335+17−1743.8%+36.460.7%955
66.5%
7Booot 6.5 64-bit 4CPU3329+21−2136.6%+82.758.7%652
54.3%
8Xiphos 0.6 64-bit 4CPU3328+13−1340.5%+60.261.5%1774
62.0%
 Stockfish 7 64-bit 4CPU3325+15−1567.0%−106.457.3%1304
56.9%
 Ethereal 11.53 64-bit 4CPU3322+23−2252.3%−13.164.0%542
83.0%
 Xiphos 0.5 64-bit 4CPU3308+20−2046.1%+25.166.7%673
82.0%
 Booot 6.4 64-bit 4CPU3296+15−1538.2%+74.459.8%1337
50.5%
 Ethereal 11.00 64-bit 4CPU3296+19−1947.0%+17.863.2%778
48.8%
 Ethereal 11.25 64-bit 4CPU3296+21−2246.3%+24.065.5%588
65.2%
 RubiChess 1.8 64-bit 4CPU3291+19−1938.3%+70.561.1%822
53.1%
 Stockfish 6 64-bit 4CPU3290+14−1465.3%−94.857.3%1542
56.9%
 RubiChess 1.7.3 64-bit 4CPU3287+20−2048.3%+10.362.4%736
60.2%
9Laser 1.7 64-bit 4CPU3284+13−1340.5%+61.660.5%1837
75.2%
10Defenchess 2.2 64-bit 4CPU3278+14−1442.1%+50.160.0%1431
66.0%
 Ethereal 10.55 64-bit 4CPU3272+24−2549.8%−2.257.4%488
60.9%
 Stockfish 5 64-bit 4CPU3268+15−1567.7%−109.954.0%1346
73.1%
11Andscacs 0.94 64-bit 4CPU3260+18−1847.2%+17.954.2%907
51.5%
 Andscacs 0.95 64-bit 4CPU3259+16−1644.1%+36.960.3%1085
51.5%
 Booot 6.3.1 64-bit 4CPU3259+15−1543.0%+44.057.4%1366
82.4%
 Xiphos 0.4 64-bit 4CPU3248+19−1943.8%+39.261.1%830
79.4%
 Andscacs 0.921 64-bit 4CPU3237+16−1650.7%−6.147.5%1225
52.4%
 Andscacs 0.93 64-bit 4CPU3237+18−1842.9%+45.054.8%938
63.6%
 Stockfish DD 64-bit 4CPU3232+17−1763.0%−78.056.1%1032
54.8%
12Arasan 22.2 64-bit 4CPU3230+28−2851.9%−11.755.9%372
59.6%
13Halogen 10 64-bit 4CPU3226+26−2648.2%+10.466.3%380
49.7%
 RubiChess 1.6 64-bit 4CPU3226+25−2559.5%−58.750.9%466
72.5%
 Arasan 21.4 64-bit 4CPU3215+25−2545.0%+25.955.6%464
50.6%
 Booot 6.2 64-bit 4CPU3215+14−1442.9%+45.959.3%1517
51.4%
 Laser 1.6 64-bit 4CPU3214+16−1643.5%+44.055.2%1124
78.8%
 Stockfish 4 64-bit 4CPU3204+16−1660.1%−59.759.1%1086
72.7%
 Arasan 21.3 64-bit 4CPU3194+30−3046.7%+25.355.7%314
63.2%
 Ethereal 10.00 64-bit 4CPU3187+20−2053.4%−23.050.8%788
65.8%
14Vajolet2 2.7 64-bit 4CPU3181+24−2451.0%−6.855.8%507
48.4%
 Vajolet2 2.8 64-bit 4CPU3181+27−2747.5%+13.863.6%376
56.9%
15Gull 3 64-bit 4CPU3179+9−942.5%+48.154.2%3783
57.4%
 Gull 2.8b 64-bit 4CPU3177+19−1949.1%+3.551.8%797
51.7%
 Xiphos 0.3 64-bit 4CPU3176+21−2149.2%+3.654.2%660
64.5%
 Arasan 21.2 64-bit 4CPU3169+30−3052.2%−12.260.6%302
57.5%
 Arasan 21.1 64-bit 4CPU3165+27−2751.2%−7.359.5%383
49.2%
 Booot 6.1 64-bit 4CPU3165+20−2042.0%+49.860.3%726
51.6%
16ChessBrainVB 3.72 4CPU3165+30−3045.0%+30.351.3%320
49.0%
 Stockfish 3 64-bit 4CPU3165+21−2156.0%−35.257.8%663
51.9%
 ChessBrainVB 3.74 4CPU3162+128−13046.9%+18.056.3%16
50.5%
 RubiChess 1.5 64-bit 4CPU3161+29−2952.4%−14.354.3%348
78.8%
 Nemorino 5.00 64-bit 4CPU3147+18−1848.1%+10.052.3%878
54.6%
 Stockfish 2.2.2 64-bit 4CPU3146+16−1659.2%−57.053.4%1141
65.7%
 Gull 2.3 64-bit 4CPU3141+17−1747.4%+14.559.3%982
49.0%
 Laser 1.5 64-bit 4CPU3141+20−2049.4%+8.054.5%723
50.3%
 Stockfish 2.3.1 64-bit 4CPU3141+19−1955.4%−33.352.5%846
55.7%
17Texel 1.07 64-bit 4CPU3139+14−1449.3%+6.349.2%1636
57.2%
18Protector 1.9.0 64-bit 4CPU3137+15−1546.4%+25.053.9%1338
59.3%
 Vajolet2 2.6.1 64-bit 4CPU3134+21−2150.8%−4.660.3%605
55.7%
 Igel 2.3.1 64-bit 4CPU3132+27−2750.2%−2.753.2%406
52.1%
 Sting SF 6 64-bit 4CPU3131+28−2850.8%−6.961.0%354
51.0%
 Sting SF 4.8.4 64-bit 4CPU3130+29−2953.3%−20.862.4%330
49.6%
 Texel 1.06 64-bit 4CPU3130+20−2046.1%+25.453.6%739
61.6%
 Stockfish 2.0.1 64-bit 4CPU3125+24−2456.4%−40.248.6%514
55.1%
 Protector 1.8.0 64-bit 4CPU3123+28−2850.4%−1.854.7%386
51.6%
 ChessBrainVB 3.68 4CPU3122+26−2649.2%+4.251.6%428
50.4%
 Gull 3.1 64-bit 4CPU3122+30−3045.4%+33.045.1%359
57.0%
 Arasan 20.4.1 64-bit 4CPU3118+26−2651.7%−10.450.2%452
54.8%
 Sting SF 5 64-bit 4CPU3116+25−2548.1%+12.754.0%465
53.1%
 Stockfish 1.9.1 64-bit 4CPU3115+22−2259.7%−66.547.2%671
58.6%
19IvanHoe 9.46h 64-bit 4CPU3112+14−1453.2%−19.559.5%1542
51.2%
 Stockfish 2.1.1 64-bit 4CPU3111+27−2754.7%−28.648.3%406
58.7%
 Sting SF 3 64-bit 4CPU3108+21−2147.7%+11.258.5%644
51.5%
20Senpai 2.0 64-bit 4CPU3107+19−1950.5%−5.048.9%872
50.6%
 Sting SF 9 64-bit 4CPU3107+28−2848.0%+10.647.2%381
49.5%
 Stockfish 1.8 64-bit 4CPU3107+18−1860.4%−70.650.6%942
51.4%
 Sting SF 2 64-bit 4CPU3106+27−2748.8%+8.658.1%375
50.4%
21Winter 0.7 64-bit 4CPU3106+25−2645.1%+31.747.1%463
53.6%
 ChessBrainVB 3.66 4CPU3104+28−2854.2%−26.848.7%378
54.4%
 Stockfish 1.7.1 64-bit 4CPU3102+19−1960.4%−67.652.6%882
54.3%
 Xiphos 0.2.2 64-bit 4CPU3101+26−2647.3%+13.553.6%414
58.7%
 Gull 2.2 64-bit 4CPU3096+25−2544.5%+31.754.8%469
52.5%
 Vajolet2 2.5 64-bit 4CPU3095+24−2451.5%−9.454.0%493
54.8%
 Nemorino 4.00 64-bit 4CPU3093+22−2250.0%+1.752.9%624
50.9%
 Sting SF 4 64-bit 4CPU3093+23−2341.9%+49.148.9%562
62.6%
 Arasan 20.3 64-bit 4CPU3086+32−3252.5%−19.747.4%302
50.3%
 Laser 1.4 64-bit 4CPU3086+19−1949.6%+0.545.7%843
59.9%
 Texel 1.05 64-bit 4CPU3083+17−1747.3%+18.551.4%1016
76.9%
 Protector 1.7.0 64-bit 4CPU3073+19−1944.1%+37.250.6%834
52.0%
 Demolito 2019-04-27 64-bit 4CPU3072+66−6650.0%−0.738.9%72
50.5%
22Amoeba 3.1 64-bit 4CPU3071+34−3442.1%+48.349.6%254
52.1%
 Nemorino 3.0 64-bit 4CPU3070+27−2747.9%+12.846.1%427
51.4%
 Protector 1.6.0 64-bit 4CPU3069+21−2243.2%+44.750.2%656
52.5%
23Rodent III 0.238 64-bit 4CPU3068+20−2047.2%+15.250.0%742
54.2%
 Rodent III 0.276 64-bit 4CPU3066+29−2949.6%+3.958.2%337
52.6%
 RubiChess 1.3 64-bit 4CPU3065+22−2252.8%−17.844.2%642
51.6%
24Topple 0.7.5 64-bit 4CPU3065+28−2851.4%−9.846.3%400
51.4%
25Demolito 2018-10-29 64-bit 4CPU3064+30−3048.6%+5.151.9%322
50.6%
 Defenchess 1.1f 64-bit 4CPU3063+18−1951.7%−11.545.3%916
68.7%
 Texel 1.04 64-bit 4CPU3056+20−2143.1%+43.547.8%722
56.4%
 Protector 1.5.0 64-bit 4CPU3054+18−1842.5%+47.947.4%952
55.9%
 Amoeba 3.0 64-bit 4CPU3052+26−2654.8%−32.644.8%466
56.0%
 Ethereal 9.00 64-bit 4CPU3049+23−2346.8%+18.845.1%570
65.1%
 Arasan 19.2 64-bit 4CPU3041+31−3151.0%−6.354.8%305
51.2%
 Vajolet2 2.2 64-bit 4CPU3041+27−2747.0%+14.748.7%423
49.2%
 Vajolet2 2.4 64-bit 4CPU3041+19−1947.2%+18.145.7%878
59.7%
 Gull R375 64-bit 4CPU3037+22−2243.4%+37.557.4%605
53.1%
 Stockfish 1.6.3 64-bit 4CPU3036+22−2257.5%−49.845.3%651
67.9%
 Arasan 20.0 64-bit 4CPU3027+30−3047.4%+16.553.4%328
51.7%
 Vajolet2 2.3 64-bit 4CPU3026+31−3145.2%+25.653.5%303
53.9%
26‑27Bobcat 8.0 64-bit 4CPU3024+21−2148.3%+11.553.5%636
50.5%
26‑27Pirarucu 2.7.4 64-bit 4CPU3024+21−2053.6%−27.047.6%735
51.8%
 Pirarucu 2.9.5 64-bit 4CPU3023+33−3350.0%−2.053.2%269
52.4%
 Senpai 1.0 64-bit 4CPU3022+16−1646.2%+21.153.5%1095
64.4%
 Winter 0.6 64-bit 4CPU3015+32−3253.0%−27.735.6%329
55.4%
28‑29Crafty 25.2 64-bit 4CPU3012+16−1648.5%+9.742.5%1279
51.7%
28‑29chess22k 1.10 64-bit 4CPU3012+22−2246.7%+16.443.7%680
52.6%
 Arasan 19.0.1 64-bit 4CPU3011+32−3151.3%−12.340.9%318
49.8%
 Nemorino 2.00 64-bit 4CPU3011+30−3047.0%+16.059.6%302
53.2%
 Laser 1.3 64-bit 4CPU3009+29−3047.2%+15.655.8%321
50.6%
 Texel 1.03 64-bit 4CPU3009+31−3150.3%−1.547.0%313
50.5%
30Cheng 4.39 64-bit 4CPU3008+15−1549.4%+4.648.6%1333
76.8%
 Vajolet2 2.1 64-bit 4CPU2998+25−2550.9%−4.148.5%462
54.5%
 Rodent III 0.210 64-bit 4CPU2995+28−2845.1%+33.242.5%402
74.1%
31Scorpio 2.8 64-bit 4CPU2983+25−2548.8%+6.546.3%492
53.4%
 Protector 1.4.0 64-bit 4CPU2981+19−1942.5%+49.442.9%912
55.1%
 Cheng4 0.38 64-bit 4CPU2979+24−2446.0%+23.642.4%531
53.6%
 Bobcat 7.6 64-bit 4CPU2977+31−3148.6%+9.541.8%318
59.5%
 Arasan 18.3 64-bit 4CPU2972+30−3046.6%+20.646.8%327
54.8%
 Arasan 18.2 64-bit 4CPU2970+28−2851.9%−15.350.3%388
48.7%
32EXchess 7.97b 64-bit 4CPU2970+18−1847.4%+18.645.9%1017
55.0%
 Stockfish 1.5.1 64-bit 4CPU2968+25−2453.7%−23.147.7%495
63.8%
 Demolito 2017-08-26 64-bit 4CPU2962+21−2140.2%+63.740.8%748
49.8%
 Winter 0.5 64-bit 4CPU2962+26−2650.4%−5.338.3%470
53.2%
 Protector 1.3.6 64-bit 4CPU2960+32−3246.6%+19.044.3%307
58.1%
 EXchess 7.88b 64-bit 4CPU2956+29−2945.4%+29.548.6%356
49.4%
33Toga II 4.0 64-bit 4CPU2956+19−1941.4%+57.240.4%958
68.4%
 Crafty 25.0 64-bit 4CPU2948+25−2548.1%+13.247.9%468
54.4%
 Stockfish 1.4 64-bit 4CPU2947+17−1754.2%−29.242.2%1131
55.8%
 Scorpio 2.7.9 64-bit 4CPU2944+22−2246.7%+21.440.5%659
58.1%
34Tucano 7.07 64-bit 4CPU2940+33−3351.5%−9.544.7%291
51.9%
 EXchess 7.51b 64-bit 4CPU2939+32−3249.5%+5.245.6%296
57.1%
35Marvin 3.3.2 64-bit 4CPU2935+36−3743.4%+39.644.7%228
51.6%
 Arasan 17.5 64-bit 4CPU2934+27−2748.4%+9.745.1%406
55.0%
 EXchess 7.71b 64-bit 4CPU2931+28−2853.3%−22.743.2%403
51.4%
 Bobcat 7.1 64-bit 4CPU2930+31−3147.5%+16.545.9%314
51.1%
 Ethereal 8.62 64-bit 4CPU2930+22−2244.2%+35.549.7%600
59.8%
 Arasan 18.0 64-bit 4CPU2925+29−2947.2%+15.741.5%378
58.6%
 Marvin 3.2.0 64-bit 4CPU2921+21−2153.7%−26.343.0%698
58.7%
 Toga II 3.0 4CPU2918+22−2345.6%+26.749.0%592
68.3%
 Crafty 23.8 64-bit 4CPU2908+32−3345.8%+27.547.0%287
60.9%
 Toga II 1.4.1SE 4CPU2903+13−1348.5%+10.641.6%2041
51.1%
 Asymptote 0.6 64-bit 4CPU2902+95−9548.3%+3.056.7%30
54.7%
 Cheng4 0.36c 64-bit 4CPU2896+30−3048.8%+6.046.6%326
52.5%
36Glaurung 2.2 64-bit 4CPU2894+16−1647.0%+19.640.7%1259
71.4%
37Octochess r5506 64-bit 4CPU2887+21−2144.5%+35.646.7%715
56.0%
38MinkoChess 1.3 64-bit 4CPU2885+21−2146.0%+24.043.7%725
50.9%
 Toga II 1.4 beta5c 4CPU2884+18−1851.7%−11.845.8%996
65.0%
 Crafty 24.1 64-bit 4CPU2877+31−3243.5%+41.339.1%322
56.8%
 Scorpio 2.7.6 64-bit 4CPU2873+26−2647.4%+17.144.0%445
64.3%
 Glaurung 2.1 64-bit 4CPU2867+19−1942.8%+51.041.3%946
53.9%
 Bobcat 6.4b 64-bit 4CPU2866+27−2748.3%+11.146.5%415
53.4%
 EXchess 7.18b 64-bit 4CPU2864+33−3347.3%+16.438.4%292
57.9%
 Scorpio 2.7.5 64-bit 4CPU2859+33−3345.7%+24.750.0%266
53.7%
 Arasan 16.3 64-bit 4CPU2857+34−3449.1%+4.240.2%276
49.0%
 Crafty 23.4 64-bit 4CPU2857+34−3446.9%+19.735.7%272
56.7%
39Monolith 1.0 64-bit 4CPU2854+22−2148.6%+8.043.0%693
48.6%
 Scorpio 2.7.7 64-bit 4CPU2854+32−3242.9%+45.241.3%310
54.2%
40Counter 3.2 64-bit 4CPU2852+32−3250.7%−4.840.2%301
56.9%
 Igel 1.9.0 64-bit 4CPU2848+31−3241.0%+59.339.5%324
69.8%
 Crafty 23.3 64-bit 4CPU2836+31−3241.5%+55.238.2%325
66.4%
 Glaurung 2.0.1 64-bit 4CPU2828+17−1743.8%+38.743.5%1100
65.8%
 Octochess r5190 64-bit 4CPU2822+24−2445.9%+23.944.5%555
91.6%
 Crafty 23.1 64-bit 4CPU2790+36−3743.8%+43.536.9%241
53.7%
 Laser 1.0 64-bit 4CPU2788+37−3836.3%+89.839.2%227
58.4%
 Bagatur 1.7a 64-bit 4CPU2773+131−13445.0%+31.220.0%20
54.8%
 Glaurung 1.2.1 64-bit 4CPU2765+19−1940.2%+63.938.1%967
69.2%
 Crafty 23.0 64-bit 4CPU2758+18−1839.0%+77.634.1%1042
69.1%
41Fridolin 3.10 64-bit 4CPU2748+33−3349.5%−0.231.5%308
78.3%
 Scorpio 2.0 32-bit 4CPU2731+24−2433.4%+114.736.7%607
76.2%
 Scorpio 2.1 64-bit 4CPU2718+27−2734.4%+109.131.6%490
80.3%
 Igel 1.4.1 64-bit 4CPU2701+28−2850.7%−7.126.3%448
81.2%
42RedQueen 1.1.98 64-bit 4CPU2683+27−2739.4%+80.328.5%494
88.0%
 RedQueen 1.1.97 64-bit 4CPU2662+22−2245.7%+26.733.3%726
100.0%
 Fridolin 2.00 64-bit 4CPU2588+34−3441.9%+57.331.3%297
95.1%
43Jazz 840 64-bit 4CPU2554+20−2057.8%−63.925.3%1000
91.7%
44Nemeton 1.8 4CPU2530+27−2749.9%+1.727.2%496
92.5%
 Invictus r228 64-bit 4CPU2341+242−29528.6%+166.40.0%7
 

Results matrix

Open source multi-CPU engines (best versions only), top 12
#NameElo123456789101112
1Stockfish 13 64-bit 4CPU3548  21 − 7
+14−0=14
+14
43 − 13
+30−0=26
+12
40 − 12
+28−0=24
+4
27 − 11
+16−0=22
−90
22.5 − 9.5
+13−0=19
−103
42.5 − 7.5
+35−0=15
+35
100 − 14
+86−0=28
+27
   
2Igel 3.0.5 64-bit 4CPU3416  27 − 25
+3−1=48
+2
         
3RubiChess 2.1 64-bit 4CPU34097 − 21
+0−14=14
−14
25 − 27
+1−3=48
−2
 13.5 − 16.5
+2−5=23
−43
14 − 14
+2−2=24
−26
52 − 26
+28−2=48
+17
20.5 − 9.5
+12−1=17
+26
18.5 − 9.5
+10−1=17
+10
    
4Ethereal 12.75 64-bit 4CPU339113 − 43
+0−30=26
−12
 16.5 − 13.5
+5−2=23
+43
 17 − 15
+5−3=24
+6
21 − 17
+7−3=28
−28
18.5 − 13.5
+6−1=25
−21
17.5 − 12.5
+6−1=23
−20
20.5 − 9.5
+11−0=19
−6
21.5 − 8.5
+13−0=17
+11
  
5Nemorino 6.00 64-bit 4CPU338312 − 40
+0−28=24
−4
 14 − 14
+2−2=24
+26
15 − 17
+3−5=24
−6
 32.5 − 19.5
+20−7=25
+27
 19 − 13
+8−2=22
−5
21.5 − 10.5
+12−1=19
0
20.5 − 11.5
+12−3=17
−20
  
6Lc0 0.27.0 w703810 64-bit 4CPU333511 − 27
+0−16=22
+90
 26 − 52
+2−28=48
−17
17 − 21
+3−7=28
+28
19.5 − 32.5
+7−20=25
−27
 50 − 46
+22−18=56
+4
19.5 − 14.5
+10−5=19
+34
    
7Booot 6.5 64-bit 4CPU33299.5 − 22.5
+0−13=19
+103
 9.5 − 20.5
+1−12=17
−26
13.5 − 18.5
+1−6=25
+21
 46 − 50
+18−22=56
−4
 13 − 19
+1−7=24
−50
    
8Xiphos 0.6 64-bit 4CPU33287.5 − 42.5
+0−35=15
−35
 9.5 − 18.5
+1−10=17
−10
12.5 − 17.5
+1−6=23
+20
13 − 19
+2−8=22
+5
14.5 − 19.5
+5−10=19
−34
19 − 13
+7−1=24
+50
 17.5 − 14.5
+7−4=21
−18
20.5 − 11.5
+9−0=23
+25
 10.5 − 5.5
+6−1=9
−8
9Laser 1.7 64-bit 4CPU328414 − 100
+0−86=28
−27
  9.5 − 20.5
+0−11=19
+6
10.5 − 21.5
+1−12=19
0
  14.5 − 17.5
+4−7=21
+18
 16 − 16
+6−6=20
−6
 9.5 − 6.5
+5−2=9
+2
10Defenchess 2.2 64-bit 4CPU3278   8.5 − 21.5
+0−13=17
−11
11.5 − 20.5
+3−12=17
+20
  11.5 − 20.5
+0−9=23
−25
16 − 16
+6−6=20
+6
  11.5 − 4.5
+8−1=7
+86
11Andscacs 0.94 64-bit 4CPU3260            
12Arasan 22.2 64-bit 4CPU3230       5.5 − 10.5
+1−6=9
+8
6.5 − 9.5
+2−5=9
−2
4.5 − 11.5
+1−8=7
−86
  
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

Open source multi-CPU engines (best versions only), top 12
#NameElo123456789101112
1Stockfish 13 64-bit 4CPU3548 100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
2Igel 3.0.5 64-bit 4CPU34160.0 64.189.895.0100.0100.0100.0100.0100.0100.0100.0
3RubiChess 2.1 64-bit 4CPU34090.035.9 92.097.4100.0100.0100.0100.0100.0100.0100.0
4Ethereal 12.75 64-bit 4CPU33910.010.28.0 76.3100.0100.0100.0100.0100.0100.0100.0
5Nemorino 6.00 64-bit 4CPU33830.05.02.623.7 100.0100.0100.0100.0100.0100.0100.0
6Lc0 0.27.0 w703810 64-bit 4CPU33350.00.00.00.00.0 66.573.7100.0100.0100.0100.0
7Booot 6.5 64-bit 4CPU33290.00.00.00.00.033.5 54.3100.0100.0100.0100.0
8Xiphos 0.6 64-bit 4CPU33280.00.00.00.00.026.345.7 100.0100.0100.0100.0
9Laser 1.7 64-bit 4CPU32840.00.00.00.00.00.00.00.0 75.298.3100.0
10Defenchess 2.2 64-bit 4CPU32780.00.00.00.00.00.00.00.024.8 93.299.9
11Andscacs 0.94 64-bit 4CPU32600.00.00.00.00.00.00.00.01.76.8 95.8
12Arasan 22.2 64-bit 4CPU32300.00.00.00.00.00.00.00.00.00.14.2 
LOS color legend:
0 10 20 30 40 50 60 70 80 90 100

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Results table
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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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Created in 2005-2013 by CCRL team
Last games added on May 15, 2021