Breaking News (05.12.2025):New CS series ON where this time I realized to include / test: 47 engines!Great news is that no crash or time forfeit recorded..well-done to authors!Other good news: my machine seems to be stable, actually from the past To the present, SCCT produced data belongs to one of the best sources:In Stability, Quality, Strength... sure I refer for long marathon (27+ years)!Moreover, often I serve you many new tour ideas that never seen before!Yes and as usual SF is Number One again and again but via 56% draws..Unbelievable stats, plus SF is another beast that came just from different Planet and destroyed everything on field! 2nd PlentyChess 3rd Reckless..All of them with superb performance!! Sure as same words are going forMany Top engines as well... Ok..BIG thanks and congrats to all authors..
     The Grand Champion is Stockfish 17.1 - My Congratulations to SF Team!    Note. Exactly same SF ver is managed to win both Rapid plus Bullet CS..
Rank Name               Elo    +    - games score oppo. draws    1 Stockfish 17.1    3820    9    9   920   72%  3697   56%    2 PlentyChess 7     3798    9    9   920   68%  3698   63%    3 Reckless 0.8.0    3795    9    9   920   67%  3698   64%    4 Obsidian 16       3789    9    9   920   66%  3698   65%    5 Alexandria 8.1.2  3783    9    9   920   64%  3698   64%    6 Berserk 13        3776    9    9   920   63%  3698   67%    7 K Dragon 3.3      3770    9    9   920   62%  3698   68%    8 Caissa 1.23       3765    9    9   920   61%  3699   71%    9 Viridithas 18     3761    9    9   920   61%  3699   69%   10 Clover 9.1        3760    9    9   920   60%  3699   70%   11 Integral 7        3750    9    9   920   59%  3699   72%   12 Stormphrax 7      3748    9    9   920   58%  3699   71%   13 Motor 0.9.0       3740    9    9   920   57%  3699   72%   14 Horsie 1.1        3738    9    9   920   56%  3699   75%   15 RubiChess 0824    3726    9    9   920   54%  3699   74%   16 Starzix 6.1       3723    9    9   920   54%  3700   68%   17 Pawnocchio 1.8.1  3723    9    9   920   54%  3700   71%   18 Lizard 11.2       3722    9    9   920   54%  3700   75%   19 Halogen 15        3720    9    9   920   53%  3700   73%   20 Quanticade 2.0    3719    9    9   920   53%  3700   75%   21 Uralochka 3.42a   3718    9    9   920   53%  3700   75%   22 Fritz 20          3715    9    9   920   53%  3700   75%   23 Astra 6.1.1       3710    9    9   920   52%  3700   75%   24 Revenge 4         3696    9    9   920   49%  3700   74%   25 Renegade 1.2.0    3692    9    9   920   49%  3700   69%   26 Velvet 8.1.1      3691    9    9   920   48%  3700   70%   27 Cinder 0.3.1      3686    9    9   920   48%  3700   72%   28 CST 2.00          3682    9    9   920   47%  3700   73%   29 Titan 1.1         3681    9    9   920   47%  3700   71%   30 Tarnished 4       3680    9    9   920   47%  3700   69%   31 Seer 2.8.0        3680    9    9   920   46%  3700   71%   32 Rebel 16.3        3675    9    9   920   46%  3701   69%   33 Clarity 8.0.0     3673    9    9   920   45%  3701   71%   34 Koivisto 9.2      3673    9    9   920   45%  3701   69%   35 Booot 7.4         3662    9    9   920   43%  3701   69%   36 Arasan 25.2.1     3661    9    9   920   43%  3701   68%   37 rofChade 3.1      3652    9    9   920   42%  3701   66%   38 Igel 3.6.0        3648    9    9   920   41%  3701   68%   39 Peacekeeper 3.01  3639    9    9   920   39%  3701   66%   40 Zangdar 5.02      3631    9    9   920   38%  3702   63%   41 Devre 6.0         3629    9    9   920   38%  3702   61%   42 Fire 10           3619    9    9   920   36%  3702   58%   43 Black Marlin 9    3606    9    9   920   34%  3702   56%   44 Altair 7.0.0      3603    9    9   920   33%  3702   56%   45 SlowChess 2.9     3600    9    9   920   32%  3702   56%   46 Equisetum 1.0     3597    9    9   920   32%  3702   55%   47 Minic 3.4.3 JA    3576    9    9   920   28%  3703   48% 
    • Calculated by Bayeselo / SlowChess fixed to 3600 / Blue Name = Last Update---------------------------------------------------------------------------------------------------------------
New: Rapid CS (10m+1s, 512 MB hash, rest same...) - Top 8
Rank Name               Elo    +    - games score oppo. draws    1 Stockfish 17.1    3796    8    9   140   57%  3763   84%    2 Reckless 0.8.0    3780   10   11   140   53%  3766   92%    3 PlentyChess 7     3773   11   11   140   51%  3767   92%    4 Obsidian 16       3768   11   11   140   50%  3767   96%    5 Alexandria 8.1.2  3766   11   11   140   50%  3768   89%    6 K Dragon 3.3      3756   11   10   140   48%  3769   92%    7 Caissa 1.23       3751   11   10   140   46%  3770   84%    8 Berserk 13        3750   11    9   140   46%  3770   91% ---------------------------------------------------------------------------------------------------------------
    More Details:    • As far as possible official engines are played which are over than 3600+     • Almost all of them are AVX2, and participated via theirs default Evalfiles     • As usually, Unique opening book suite used (based on 1200+ openings)  And for more fair conditions, each of used opening line repeated: twice    • Plus, for more fair tour conditions, 'Engine Learning' is disabled as well    • Sure where possible: all of engines are played with move overhead 100     • Bullet overall draw ratio 68% rather quite normal due 3600+ Elo players    • As usually, all of the played tournament games available: Bullet / Rapid