Breaking News (07.10.2023):The current championship ended too...congrats and many thanks to all !!As reason, another new exciting book competitions are coming very soon..And as usual, all the played games are available (in PGN format): BN XVIIOk... that's all for now.and please stay tuned...more information very soonMeanwhile, for previous postings about current new championship News 
Public Book Champion OPTIMUS Congrats to Roger ConstantinescoPrivate Book Champion: DON Hercules - Congrats to Vasid Chouhan
 Rank Name                 Elo    +    - games score oppo. draws   1 OPTIMUS 4            3636   10   10   820   55%  3602   83%    2 DON Hercules         3631   10   10   820   54%  3602   73%    3 LesChats 130923      3627   10   10   820   54%  3602   78%    4 SENTINEL 2           3627   10   10   820   54%  3602   81%    5 Pimienta             3626   10   10   820   54%  3602   86%    6 Everest 300923       3624   10   10   820   53%  3602   77%    7 CachoSCCT            3624   10   10   820   53%  3602   82%    8 Goi forum            3620   10   10   820   53%  3602   75%    9 Zaytsev              3619   10   10   820   53%  3602   86%   10 SARI 300923          3618   10   10   820   52%  3602   82%   11 V by Kerveros        3615   10   10   820   52%  3603   88%   12 OlisFish 260923      3612   10   10   820   51%  3603   83%   13 Hamish 5             3609   10   10   820   51%  3603   82%   14 HCanFree Upd         3609   10   10   820   51%  3603   78%   15 Raid 3 TR            3609   10   10   820   51%  3603   82%   16 LesChats 041023      3608   10   10   820   51%  3603   79%   17 Hamish 4.1           3606   10   10   820   50%  3603   79%   18 Solista X            3605   10   10   820   50%  3603   83%   19 Cerebellum X         3604   10   10   820   50%  3603   82%   20 1337chess X          3603   10   10   820   50%  3603   83% 
   Note All of the above opening books are played by BrainFish 240720 engine-----------------------------------------------------------------   1 Feta X + rofChade31  3627   10   10   820   54%  3602   75%    2 FireOnBin + Fire     3625   10   10   820   53%  3602   76%    3 Rufus2020 + KoiV     3620   10   10   820   53%  3602   76%    4 Book + Rebel 16.2    3619   10   10   820   53%  3602   80%    5 Eman240722 + Eman    3609   10   10   820   51%  3603   80%    6 Oliprog + Igel       3603   10   10   820   50%  3603   78%    7 SF SE + SF310720     3600   10   10   820   50%  3603   83%    8 ChessGod + AI 26     3597   10   10   820   49%  3603   80%    9 M13.8 + CiChess      3595   10   10   820   49%  3603   73%   10 Legends + CF EXT     3593   10   10   820   48%  3603   80%   11 Zeus + Zeus 9.4      3590   10   10   820   48%  3603   79%   12 ChessBot + CF11      3589   10   10   820   48%  3603   72%   13 Ukraine 53 + SFX     3589   10   10   820   48%  3603   74%   14 SSDF + Berserk       3577   10   10   820   46%  3603   72%   15 HIARCS + Seer260     3576   10   10   820   46%  3603   69%   16 TestBook + Slow29    3575   10   10   820   46%  3603   76%   17 SCCT + Cfish         3575   10   10   820   46%  3603   72%   18 Book + Arasan 24     3575   10   10   820   46%  3603   79%   19 MANTIS + Caissa      3571   10   10   820   45%  3604   72%   20 TR POWER + Clover    3571   10   10   820   45%  3604   71%   21 BRAIN + RubiChess    3555   10   10   820   43%  3604   66%   22 Rybka + Tiger        3552   10   10   820   42%  3604   72% 
   • Calculated by Bayeselo / SCCT book fixed to 3575 Elo / Blue Name = Last Update
More Details (when the tour was active) All XVI's book entries are played by same engine: BrainFish 240720  Sure for more variety: many other diff. engines used as well: Details Tour target: testing books by close in strength of 3600 Elo engines...  Plus the goal is to see the influence of latest books as NON-NNUE  Based on tests: almost all played engines are close to 3600 Elo e.g:  Rebel16.2, Fire 8NN1, Koivisto 7.22, Seer slightly stronger than BrainFish  Or RubiChess130822, Arasan24, Tiger180520 are weaker than BrainFish  Where other rest engines are very close in strength (minus plus 10 Elo)     So far all old-dated opening books are played by different engines..  But mostly books are played as NON-NNUE (without assistance) • In this new Championship: Public plus Private books are allowed..• Tournament time duration is not clear..will depend on my free time • Polyglot (BIN) main settings: BookDepth 100/ BestMove Disabled  Exc. some of the books are played by Author's recommendations• Each book participant will be played min. 600 games (per player)• Any Private/Public Leader (after 600 games) will be titled Champion• The overall draw ratio (based on 14820 games) not so high: 78%BN16  BN15  BN14  BN13  BN12  BN11  LXV  BN10  BN9  BN8  BN7 BN6  64