CCRL 40/15
Downloads and Statistics
August 8, 2020
Testing summary:
Total: 1'167'960 games
played by 2'693 programs

White wins: 402'856 (34.5%)
Black wins: 297'658 (25.5%)
Draws: 467'446 (40.0%)
White score: 54.5%

Open source multi-CPU engines

Comparing 193 engines!
193 selected engines played 24650 games with each other



CCRL 40/15 Rating List - Open source multi-CPU engines
1167960 games played by 2693 programs, run by 23 testers
Ponder off, General books (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 August 8, 2020 with Bayeselo based on 1'167'960 games
Tested by CCRL team, 2005-2020, http://ccrl.chessdom.com/ccrl/4040/

 Rank                 Engine                   Elo   +    -   Score  AvOp  Games
    1 Stockfish 2019-10-09 64-bit 4CPU        3495  +25  -24  73.4% -148.2   524
      Stockfish 11 64-bit 4CPU                3486  +20  -19  72.3% -139.2   824
      SugaR NN 1.1 64-bit 4CPU                3478  +18  -17  72.2% -143.0  1056
      Stockfish 10 64-bit 4CPU                3463  +16  -16  72.0% -145.4  1307
      SugaR 1.6.1 64-bit 4CPU                 3462  +25  -25  69.0% -118.5   479
      Stockfish 270918 64-bit 4CPU            3454  +28  -27  77.9% -189.3   457
      ShashChess 8.0 64-bit 4CPU              3446  +17  -17  66.3%  -98.6   992
      SugaR XPrO 1.5.3 64-bit 4CPU            3433  +24  -24  71.8% -143.6   544
      Stockfish 9 64-bit 4CPU                 3432  +15  -15  72.3% -153.6  1423
      SugaR XPrO 1.4 64-bit 4CPU              3411  +20  -20  72.3% -150.3   840
      asmFish 051117 64-bit 4CPU              3409  +20  -19  69.8% -130.4   819
      SugaR XPrO 1.2 64-bit 4CPU              3399  +21  -20  70.4% -135.9   754
      ShashChess Pro 1.0 64-bit 4CPU          3392  +33  -33  65.6%  -93.9   256
      Stockfish 8 64-bit 4CPU                 3378  +14  -14  65.1%  -96.2  1647
      SugaR XPrO 1.3 64-bit 4CPU              3373  +23  -22  66.0% -102.7   598
      Ethereal 12.25 64-bit 4CPU              3360  +39  -40  48.8%   +7.4   162
    2 Ethereal 12.00 64-bit 4CPU              3353  +22  -22  50.9%   -3.1   562
      Ethereal 11.75 64-bit 4CPU              3349  +21  -21  47.3%  +14.5   614
    3 Xiphos 0.6 64-bit 4CPU                  3339  +18  -18  46.1%  +23.6   844
      Stockfish 7 64-bit 4CPU                 3326  +15  -15  67.0% -105.6  1304
      Ethereal 11.53 64-bit 4CPU              3325  +23  -22  52.3%  -12.6   542
      Xiphos 0.5 64-bit 4CPU                  3308  +19  -19  43.9%  +39.6   745
    4 Booot 6.4 64-bit 4CPU                   3299  +21  -21  41.3%  +51.5   618
      Ethereal 11.00 64-bit 4CPU              3299  +19  -19  47.0%  +17.9   778
      Ethereal 11.25 64-bit 4CPU              3299  +21  -22  46.3%  +24.0   588
      Stockfish 6 64-bit 4CPU                 3291  +14  -14  65.3%  -94.1  1542
    5 RubiChess 1.7.3 64-bit 4CPU             3288  +23  -23  55.6%  -33.3   520
    6 Laser 1.7 64-bit 4CPU                   3286  +15  -15  43.5%  +40.5  1277
    7 Defenchess 2.2 64-bit 4CPU              3280  +16  -17  41.8%  +52.4  1042
      Ethereal 10.55 64-bit 4CPU              3275  +24  -25  49.8%   -2.2   488
      Stockfish 5 64-bit 4CPU                 3269  +15  -15  67.7% -109.1  1346
    8 Andscacs 0.94 64-bit 4CPU               3263  +18  -18  47.2%  +17.9   907
      Andscacs 0.95 64-bit 4CPU               3263  +17  -18  42.3%  +47.8   943
      Booot 6.3.1 64-bit 4CPU                 3262  +15  -15  43.0%  +44.1  1366
      Xiphos 0.4 64-bit 4CPU                  3251  +19  -19  43.8%  +38.9   830
      Andscacs 0.921 64-bit 4CPU              3240  +16  -16  50.7%   -6.7  1225
      Andscacs 0.93 64-bit 4CPU               3239  +18  -18  42.9%  +45.6   938
      Stockfish DD 64-bit 4CPU                3234  +17  -17  63.0%  -78.4  1032
      RubiChess 1.6 64-bit 4CPU               3229  +25  -25  59.5%  -59.0   466
    9 Arasan 21.4 64-bit 4CPU                 3218  +25  -25  45.0%  +26.1   464
      Booot 6.2 64-bit 4CPU                   3217  +14  -14  42.9%  +46.3  1517
      Laser 1.6 64-bit 4CPU                   3217  +16  -16  43.5%  +43.7  1124
      Stockfish 4 64-bit 4CPU                 3206  +16  -16  60.1%  -60.2  1086
      Arasan 21.3 64-bit 4CPU                 3197  +30  -30  46.7%  +25.6   314
      Ethereal 10.00 64-bit 4CPU              3189  +20  -20  53.4%  -22.7   788
   10 Vajolet2 2.7 64-bit 4CPU                3185  +25  -25  52.3%  -14.4   459
   11 Gull 3 64-bit 4CPU                      3181   +9   -9  42.5%  +48.0  3783
      Gull 2.8b 64-bit 4CPU                   3178  +19  -19  49.1%   +4.1   797
      Xiphos 0.3 64-bit 4CPU                  3178  +21  -21  49.2%   +4.0   660
      Arasan 21.2 64-bit 4CPU                 3171  +30  -30  52.2%  -12.0   302
      Arasan 21.1 64-bit 4CPU                 3167  +27  -27  51.2%   -7.4   383
      Booot 6.1 64-bit 4CPU                   3167  +20  -20  42.0%  +49.8   726
   12 ChessBrainVB 3.72 4CPU                  3167  +30  -30  45.0%  +30.7   320
      Stockfish 3 64-bit 4CPU                 3167  +21  -21  56.0%  -35.7   663
      ChessBrainVB 3.74 4CPU                  3164 +128 -130  46.9%  +18.0    16
      RubiChess 1.5 64-bit 4CPU               3163  +29  -29  52.4%  -14.0   348
   13 Nemorino 5.00 64-bit 4CPU               3149  +18  -18  48.1%  +10.4   878
      Stockfish 2.2.2 64-bit 4CPU             3147  +16  -16  59.2%  -56.4  1141
      Laser 1.5 64-bit 4CPU                   3143  +20  -20  49.4%   +8.0   723
      Gull 2.3 64-bit 4CPU                    3142  +17  -17  47.4%  +15.1   982
      Stockfish 2.3.1 64-bit 4CPU             3142  +19  -19  55.4%  -32.7   846
   14 Texel 1.07 64-bit 4CPU                  3141  +14  -14  49.5%   +5.6  1620
   15 Protector 1.9.0 64-bit 4CPU             3139  +15  -15  46.4%  +24.7  1338
      Vajolet2 2.6.1 64-bit 4CPU              3136  +21  -21  50.8%   -4.7   605
   16 Igel 2.3.1 64-bit 4CPU                  3134  +27  -27  50.2%   -2.6   406
      Sting SF 4.8.4 64-bit 4CPU              3132  +29  -29  53.3%  -21.4   330
      Sting SF 6 64-bit 4CPU                  3132  +28  -28  50.8%   -6.5   354
      Texel 1.06 64-bit 4CPU                  3132  +20  -20  46.1%  +25.3   739
      Stockfish 2.0.1 64-bit 4CPU             3127  +24  -24  56.4%  -40.8   514
      ChessBrainVB 3.68 4CPU                  3124  +26  -26  49.2%   +3.9   428
      Gull 3.1 64-bit 4CPU                    3124  +30  -30  45.4%  +33.2   359
      Protector 1.8.0 64-bit 4CPU             3124  +27  -27  50.4%   -1.2   386
      Arasan 20.4.1 64-bit 4CPU               3120  +26  -26  51.7%  -10.5   452
      Sting SF 5 64-bit 4CPU                  3118  +25  -25  48.1%  +12.2   465
      Stockfish 1.9.1 64-bit 4CPU             3115  +22  -22  60.9%  -73.9   639
   17 IvanHoe 9.46h 64-bit 4CPU               3113  +14  -14  53.2%  -19.0  1542
      Stockfish 2.1.1 64-bit 4CPU             3113  +27  -27  54.7%  -29.1   406
   18 Senpai 2.0 64-bit 4CPU                  3109  +19  -19  51.5%  -12.2   816
      Sting SF 3 64-bit 4CPU                  3109  +21  -21  47.7%  +11.9   644
      Sting SF 9 64-bit 4CPU                  3109  +28  -28  48.0%  +10.9   381
      Sting SF 2 64-bit 4CPU                  3108  +27  -27  48.8%   +8.3   375
   19 Winter 0.7 64-bit 4CPU                  3108  +25  -25  45.1%  +31.8   463
      Stockfish 1.8 64-bit 4CPU               3107  +18  -18  60.8%  -73.3   918
      ChessBrainVB 3.66 4CPU                  3106  +28  -28  54.2%  -27.2   378
      Stockfish 1.7.1 64-bit 4CPU             3103  +19  -18  60.4%  -67.8   882
      Xiphos 0.2.2 64-bit 4CPU                3102  +26  -26  47.3%  +14.3   414
      Gull 2.2 64-bit 4CPU                    3098  +25  -25  44.5%  +31.1   469
      Vajolet2 2.5 64-bit 4CPU                3097  +24  -24  51.5%   -9.6   493
      Nemorino 4.00 64-bit 4CPU               3095  +22  -22  50.0%   +1.6   624
      Sting SF 4 64-bit 4CPU                  3095  +23  -23  41.9%  +48.6   562
      Arasan 20.3 64-bit 4CPU                 3088  +32  -32  52.5%  -19.8   302
      Laser 1.4 64-bit 4CPU                   3088  +19  -19  49.6%   +0.5   843
      Texel 1.05 64-bit 4CPU                  3084  +17  -17  47.3%  +19.1  1016
      Protector 1.7.0 64-bit 4CPU             3075  +19  -19  44.1%  +36.8   834
   20 Amoeba 3.1 64-bit 4CPU                  3073  +34  -34  42.1%  +48.4   254
      Demolito 2019-04-27 64-bit 4CPU         3073  +66  -66  50.0%   +0.2    72
      Nemorino 3.0 64-bit 4CPU                3072  +27  -27  47.9%  +12.6   427
      Protector 1.6.0 64-bit 4CPU             3071  +22  -21  43.2%  +44.3   656
   21 Rodent III 0.238 64-bit 4CPU            3070  +20  -20  47.2%  +15.0   742
      Rodent III 0.276 64-bit 4CPU            3068  +29  -29  49.6%   +3.9   337
      RubiChess 1.3 64-bit 4CPU               3067  +22  -22  52.8%  -18.1   642
   22 Demolito 2018-10-29 64-bit 4CPU         3066  +30  -30  48.6%   +4.9   322
      Defenchess 1.1f 64-bit 4CPU             3065  +19  -18  51.7%  -11.9   916
   23 Topple 0.7.5 64-bit 4CPU                3061  +29  -29  53.2%  -19.9   360
      Texel 1.04 64-bit 4CPU                  3058  +21  -21  43.1%  +43.0   722
      Protector 1.5.0 64-bit 4CPU             3056  +18  -18  42.5%  +47.4   952
      Amoeba 3.0 64-bit 4CPU                  3053  +26  -26  54.8%  -32.0   466
      Ethereal 9.00 64-bit 4CPU               3051  +23  -23  46.8%  +18.6   570
      Arasan 19.2 64-bit 4CPU                 3043  +31  -31  51.0%   -6.9   305
      Vajolet2 2.4 64-bit 4CPU                3043  +19  -19  47.2%  +17.9   878
      Vajolet2 2.2 64-bit 4CPU                3042  +27  -27  47.0%  +15.2   423
      Gull R375 64-bit 4CPU                   3039  +22  -22  43.4%  +37.1   605
      Stockfish 1.6.3 64-bit 4CPU             3037  +22  -22  57.5%  -49.9   651
      Arasan 20.0 64-bit 4CPU                 3029  +30  -30  47.4%  +16.2   328
      Vajolet2 2.3 64-bit 4CPU                3028  +31  -31  45.2%  +25.3   303
24-25 Bobcat 8.0 64-bit 4CPU                  3026  +21  -21  48.3%  +11.3   636
24-25 Pirarucu 2.7.4 64-bit 4CPU              3026  +20  -20  53.6%  -27.6   735
      Pirarucu 2.9.5 64-bit 4CPU              3024  +33  -33  50.0%   -1.8   269
      Senpai 1.0 64-bit 4CPU                  3024  +16  -16  46.2%  +20.6  1095
      Winter 0.6 64-bit 4CPU                  3016  +32  -32  53.0%  -27.1   329
26-27 Crafty 25.2 64-bit 4CPU                 3014  +16  -16  48.5%   +9.3  1279
26-27 chess22k 1.10 64-bit 4CPU               3014  +22  -22  46.7%  +16.0   680
      Arasan 19.0.1 64-bit 4CPU               3012  +31  -31  51.3%  -12.3   318
      Nemorino 2.00 64-bit 4CPU               3012  +30  -30  47.0%  +16.7   302
      Laser 1.3 64-bit 4CPU                   3011  +30  -30  47.2%  +15.1   321
   28 Cheng 4.39 64-bit 4CPU                  3010  +15  -15  49.4%   +4.0  1333
      Texel 1.03 64-bit 4CPU                  3010  +31  -31  50.3%   -1.2   313
      Vajolet2 2.1 64-bit 4CPU                2999  +25  -25  50.9%   -3.8   462
      Rodent III 0.210 64-bit 4CPU            2997  +28  -28  45.1%  +33.0   402
   29 Scorpio 2.8 64-bit 4CPU                 2984  +25  -25  48.8%   +6.9   492
      Protector 1.4.0 64-bit 4CPU             2983  +19  -19  42.5%  +48.7   912
      Cheng4 0.38 64-bit 4CPU                 2981  +24  -24  46.0%  +22.8   531
      Bobcat 7.6 64-bit 4CPU                  2979  +31  -31  48.6%   +8.6   318
      Arasan 18.3 64-bit 4CPU                 2973  +30  -30  46.6%  +20.9   327
      Arasan 18.2 64-bit 4CPU                 2971  +28  -28  51.9%  -15.2   388
   30 EXchess 7.97b 64-bit 4CPU               2971  +18  -18  47.4%  +19.1  1017
      Stockfish 1.5.1 64-bit 4CPU             2969  +25  -24  53.7%  -23.1   495
      Demolito 2017-08-26 64-bit 4CPU         2964  +21  -21  40.2%  +63.2   748
      Winter 0.5 64-bit 4CPU                  2964  +26  -26  50.4%   -5.9   470
      Protector 1.3.6 64-bit 4CPU             2962  +32  -32  46.6%  +18.2   307
   31 Toga II 4.0 64-bit 4CPU                 2958  +19  -19  41.4%  +56.7   958
      EXchess 7.88b 64-bit 4CPU               2957  +29  -29  45.4%  +29.7   356
      Crafty 25.0 64-bit 4CPU                 2950  +25  -25  48.1%  +12.3   468
      Stockfish 1.4 64-bit 4CPU               2947  +17  -17  54.2%  -28.5  1131
      Scorpio 2.7.9 64-bit 4CPU               2946  +22  -22  46.7%  +20.7   659
   32 Tucano 7.07 64-bit 4CPU                 2941  +33  -33  51.5%   -9.7   291
      EXchess 7.51b 64-bit 4CPU               2940  +32  -32  49.5%   +5.0   296
   33 Marvin 3.3.2 64-bit 4CPU                2936  +36  -37  43.4%  +39.5   228
      Arasan 17.5 64-bit 4CPU                 2935  +27  -27  48.4%   +9.7   406
      EXchess 7.71b 64-bit 4CPU               2932  +28  -28  53.3%  -22.7   403
      Bobcat 7.1 64-bit 4CPU                  2931  +31  -31  47.5%  +16.3   314
      Ethereal 8.62 64-bit 4CPU               2931  +22  -22  44.2%  +35.9   600
      Arasan 18.0 64-bit 4CPU                 2926  +29  -29  47.2%  +15.7   378
      Marvin 3.2.0 64-bit 4CPU                2922  +21  -21  53.7%  -26.2   698
      Toga II 3.0 4CPU                        2919  +22  -23  45.6%  +26.9   592
      Crafty 23.8 64-bit 4CPU                 2909  +32  -33  45.8%  +27.2   287
      Toga II 1.4.1SE 4CPU                    2904  +13  -13  48.5%  +10.5  2041
      Asymptote 0.6 64-bit 4CPU               2903  +95  -95  48.3%   +3.0    30
      Cheng4 0.36c 64-bit 4CPU                2897  +30  -30  48.8%   +6.0   326
   34 Glaurung 2.2 64-bit 4CPU                2895  +16  -16  47.0%  +19.4  1259
   35 Octochess r5506 64-bit 4CPU             2888  +21  -21  44.5%  +35.8   715
   36 MinkoChess 1.3 64-bit 4CPU              2886  +21  -21  46.0%  +24.1   725
      Toga II 1.4 beta5c 4CPU                 2885  +18  -18  51.7%  -12.2   996
      Crafty 24.1 64-bit 4CPU                 2878  +31  -32  43.5%  +41.3   322
      Scorpio 2.7.6 64-bit 4CPU               2874  +26  -26  47.4%  +17.1   445
      Glaurung 2.1 64-bit 4CPU                2868  +19  -19  42.8%  +50.7   946
      Bobcat 6.4b 64-bit 4CPU                 2867  +27  -27  48.3%  +11.1   415
      EXchess 7.18b 64-bit 4CPU               2865  +33  -33  47.3%  +16.4   292
      Scorpio 2.7.5 64-bit 4CPU               2860  +33  -33  45.7%  +24.6   266
      Arasan 16.3 64-bit 4CPU                 2858  +34  -34  49.1%   +4.2   276
      Crafty 23.4 64-bit 4CPU                 2858  +34  -34  46.9%  +19.6   272
   37 Monolith 1.0 64-bit 4CPU                2855  +22  -21  48.6%   +8.1   693
      Scorpio 2.7.7 64-bit 4CPU               2855  +32  -32  42.9%  +45.2   310
   38 Counter 3.2 64-bit 4CPU                 2853  +32  -32  50.7%   -4.6   301
      Igel 1.9.0 64-bit 4CPU                  2849  +31  -32  41.0%  +59.3   324
      Crafty 23.3 64-bit 4CPU                 2837  +31  -32  41.5%  +55.1   325
      Glaurung 2.0.1 64-bit 4CPU              2829  +17  -17  43.8%  +38.3  1100
      Octochess r5190 64-bit 4CPU             2823  +24  -24  45.9%  +23.8   555
      Crafty 23.1 64-bit 4CPU                 2791  +36  -37  43.8%  +43.1   241
      Laser 1.0 64-bit 4CPU                   2789  +37  -38  36.3%  +89.6   227
      Bagatur 1.7a 64-bit 4CPU                2774 +131 -134  45.0%  +30.8    20
      Glaurung 1.2.1 64-bit 4CPU              2765  +19  -19  40.2%  +64.3   967
      Crafty 23.0 64-bit 4CPU                 2759  +18  -18  39.0%  +77.1  1042
   39 Fridolin 3.10 64-bit 4CPU               2749  +33  -33  49.5%   -0.4   308
      Scorpio 2.0 32-bit 4CPU                 2731  +24  -24  33.4% +115.3   607
      Scorpio 2.1 64-bit 4CPU                 2719  +27  -27  34.4% +108.6   490
      Igel 1.4.1 64-bit 4CPU                  2701  +28  -28  50.7%   -6.6   448
   40 RedQueen 1.1.98 64-bit 4CPU             2683  +27  -27  39.4%  +80.8   494
      RedQueen 1.1.97 64-bit 4CPU             2662  +22  -22  45.7%  +27.3   726
      Fridolin 2.00 64-bit 4CPU               2589  +34  -34  41.9%  +56.8   297
   41 Jazz 840 64-bit 4CPU                    2554  +20  -20  57.8%  -64.0  1000
   42 Nemeton 1.8 4CPU                        2530  +27  -27  49.9%   +2.2   496
      Invictus r228 64-bit 4CPU               2341 +242 -295  28.6% +166.7     7

Created in 2005-2013 by CCRL team
Last games added on August 8, 2020