Breaking News (22.10.2026):     For more fair cond., new "Size" tourneys organized Small, Medium, and Large.     Btw, Corchess is Corchess...proves again to all of us that it's "One step ahead"     As same words are going to "Stockfish" engine as well..Note also that as far as     Possible newer vers. are participated, exc. some former Champions are played     Again..sure for comparing..What I can add more? These kind of tours introduce     That smaller engines can be stronger than bigger ones..but anyhow (in overall),     It's clear that usually bigger engines (in size) are stronger than the smaller ones.     As last; SIZE matters...but Think BIG, Dream BIG, and the RESULT will be BIG!
    Small (Up to 45 MB) Size Champ: Stockfish - Congrats to Anton CES, SF Team!    Note: Stockfish 200926 is a quite small engine... approx. 3.75 MB, just imagine !!
Rank Name               Elo    +    - games score oppo. draws   1 Stockfish 200926  3801    8    8  1088   65%  3711   65%    2 Sedat 2026        3800    8    8  1088   65%  3712   63%    3 Obsidian 16.15 SE 3798    8    8  1088   64%  3712   65%    4 Alexandria 9.1.0  3790    8    8  1088   63%  3712   67%    5 Berserk 14        3771    8    9  1088   59%  3713   71%    6 Astra 7.0         3741    9    9  1088   54%  3715   69%    7 JustBot 0.5.0     3728    9    9  1088   52%  3716   72%    8 Devre 7.0         3718    9    9  1088   50%  3716   70%    9 Renegade 1.3.1    3709    9    9  1088   49%  3717   68%   10 Tcheran 14        3706    9    9  1088   48%  3717   70%   11 Minke 7.0.0       3703    9    9  1088   48%  3717   71%   12 Icarus 1.1.1      3700    9    9  1088   47%  3717   72%   13 PZChessBot 7.1    3696    9    9  1088   46%  3718   74%   14 Zangdar 7         3672    9    9  1088   42%  3719   66%   15 Arasan 26.1       3655    9    9  1088   39%  3720   65%   16 Avalanche 5.0.0   3644    9    8  1088   37%  3721   65%   17 Clarity 8.0.0     3633    8    8  1088   35%  3721   61%   18 Cataphract 1.5.1  3630    8    8  1088   35%  3722   59% 
    • Overall Draw Ratio: 67%,normal..likely due to not so close in strength engines----------------------------------------------------------------------------------------------------------------
    Medium (45 MB - 90 MB) Size's Champion Stockfish- Congratulations to SF Team!
Rank Name                Elo    +    - games score oppo. draws    1 Stockfish 141025   3829    7    7  1014   61%  3762   73%    2 Reckless 010926    3820    8    8  1014   60%  3763   75%    3 PlentyChess 8.0.5  3800    8    8  1014   56%  3764   77%    4 Pawnocchio 2.01    3789    8    8  1014   54%  3765   77%    5 Caissa 2.0         3787    8    8  1014   54%  3765   78%    6 Integral 8         3786    8    8  1014   53%  3765   77%    7 Viridithas 2.0     3778    8    8  1014   52%  3766   79%    8 Hobbes 3           3767    8    8  1014   50%  3767   77%    9 Gaiachess 4.4.3    3761    8    8  1014   49%  3767   77%   10 Stormphrax 8.0.0   3748    8    8  1014   47%  3768   76%   11 Quanticade 290926  3740    8    8  1014   45%  3769   75%   12 Raphael 4.2.0      3733    8    8  1014   44%  3770   72%   13 Tarnished 6.0      3726    8    8  1014   43%  3770   74%   14 Heimdall 1.5.1     3672    7    7  1014   32%  3774   58% 
    • Overall Draw Ratio: 75%, normal too...likely due not so close in strength engines----------------------------------------------------------------------------------------------------------------
  Large (90 MB+) Size's Champion: CorChess - Congratulations to I. Ivec, SF Team!
Rank Name                Elo    +    - games score oppo. draws    1 Corchess 300926    3849    4    5  1280   53%  3833   88%    2 Stockfish 171026   3847    4    5  1280   53%  3833   90%    3 Private19sf 3.10   3846    4    5  1280   53%  3833   90%    4 SF-Wald 111026     3844    5    5  1280   53%  3833   88%    5 Revolution 150926  3844    5    5  1280   52%  3833   88%    6 SF-PB 010726       3844    5    5  1280   52%  3833   89%    7 Raid 7.9           3843    5    5  1280   52%  3833   87%    8 DarkSisTer 17      3843    5    5  1280   52%  3833   89%    9 Artemis 47TR PrO   3843    5    5  1280   52%  3833   89%   10 Evolution 1.0      3843    5    5  1280   52%  3833   89%   11 Stockfish 19       3843    5    5  1280   52%  3833   90%   12 Hlamnick 011026    3842    5    5  1280   52%  3834   90%   13 SpecTral 17        3842    5    5  1280   52%  3834   87%   14 Horizon +          3841    5    5  1280   52%  3834   88%   15 Triumviratus 8     3839    5    5  1280   52%  3834   89%   16 SF-POLY 011026     3838    5    5  1280   51%  3834   90%   17 DON 121026         3835    5    5  1280   51%  3834   90%   18 Killfish 010426    3833    5    5  1280   50%  3834   87%   19 Coda 0.9.4         3805    4    4  1280   44%  3835   81%   20 Cinder 0.6.1       3790    3    3  1280   40%  3836   76%   21 CSTal 3.0.0        3758    3    3  1280   27%  3838   53% 
    • Overall Draw Ratio: 86%, a bit high..due to mainly SF-based engines are played
More Details:     • Only Public Engines / Mostly Avx2 / Engine Learning OFF / Default EvalFiles      • For max. stability and performance: HT (SMT) plus Large Page are Disabled       • All of the tournament matches are played with Physical Core/s (not thread/s)      • GUI Options - Concurrent Games 68, that means played at 53% CPU usage     • All participated engines played (sure where possible) via move overhead: 100      • All engines played with a newer Unique suite ver (based on 2191 openings)   For more fair conditions..each of the used opening line is repeated as twice• Calculated by Bayeselo Chess Program / Blue Name= Last Updated Engine• As usually, all of the tournament games are available (in PGN): SIZE CS III