Breaking News - 16.12.2025:Another CS organized..congratulations and many thanks to all book authors! What's new? it's like human, but belonging to the strong level play 2700+ Elo    And I hope you like my new tour idea? By the way, the draw ratio is just: 39%    At the same time these low values shows us that the errors are high, but you    Know..without error there can be no FUN, right ?) therefore classic is classic!    Moreover, if each time via huge assistance...is not much boring? Yeah, since    NNUE 2020, 3800+ Elo situation has become unbearable, even via fast bullet..    Anyhow, as we see Champions authors books are on Top again and again !!    No matter with NNUE or as without and correct me please..if I'm wrong here..    Yes this time, Mr. Hamdullah one (Kill Bookson) performed with great points!    Also AdrianOlivia, DON, LesChats, Blunder, Queen Gambit performed good!Btw, Bobcat2 performed very good too..even old-dated (based on 2011) but No any surprise..e.g the same book version is managed to be Winner: LXXIMeanwhile, for my previous posts about the current competition OpenChess
     The Champion of LXXI: Kill Bookson 2  - Congratulations to Hamdullah Can!
Rank Name               Elo    +    - games score oppo. draws   1 Kill Bookson 2    2806   19   19   720   59%  2740   44%    2 AdrianOliva 4     2796   19   19   720   58%  2740   46%    3 Bobcat2           2785   19   19   720   56%  2741   40%    4 DonLite 131225    2784   19   19   720   56%  2741   45%    5 DON 131225        2784   19   19   720   56%  2741   45%    6 LesChats 121225   2783   19   18   720   56%  2741   53%    7 Blunder           2782   19   19   720   56%  2741   49%    8 Queens Gambit     2782   19   19   720   56%  2741   48%    9 Tunafish 3.2      2780   19   19   720   55%  2741   48%   10 Biyuya 2.5        2779   19   19   720   55%  2741   45%   11 Unicornio upd2    2773   19   19   720   54%  2741   47%   12 Smarthink 1.0     2755   20   20   720   52%  2742   31%   13 Africaata 231125  2744   19   19   720   50%  2742   46%   14 Gogobello 1.3     2741   20   19   720   50%  2742   36%   15 Skynet 180724     2741   19   19   720   49%  2742   49%   16 Fruit 2005        2739   19   19   720   49%  2742   39%   17 Alaric 707        2734   20   20   720   49%  2742   29%   18 Naum 2.0          2732   20   20   720   49%  2742   35%   19 So                2730   19   19   720   48%  2743   47%   20 LOBO 2025         2727   19   19   720   47%  2743   48%   21 Karjakin          2726   19   19   720   47%  2743   46%   22 Tornado 4.4       2725   20   20   720   48%  2743   29%   23 Phalanx XXV       2717   20   20   720   46%  2743   28%   24 Rodent 1.1        2715   19   20   720   46%  2743   35%   25 Glaurung 1.2.1    2710   20   20   720   46%  2743   29%   26 Performance       2701   20   20   720   45%  2743   25%   27 Gandalf 7         2700   20   20   720   44%  2744   31%   28 ECE X3            2696   20   21   720   44%  2744   22%   29 Shield 2          2684   20   21   720   42%  2744   22%   30 Ruffian 2.1.0     2678   20   20   720   41%  2744   33%   31 Cheng3 1.07       2673   20   20   720   41%  2744   25%
    • Calculated by Bayeselo / Gandalf fixed to 2700 Elo /  Blue Name = Last Update
More Details:• All engines are very close in strength, target was to pick the engines to GMs     Levels..and at same time..they are played via own books plus as alternative:  Many trend books participated too and all of them are played by Bobcat 2.75    • As usually, all the played tournament games are available (in PGN): CS LXXI51  50  49   48  47   46  45  44  43   42  LXX  41  LXIX  40  39  35n  BEC1  BEN2  38  37  36  S1