Breaking News (05.04.2023):Again 2 (two) Championships, based mainly on engines 3550+ EloThe 1st tour is played via 2 Core/Game, 2nd tour via 4 Core/GameAnd this time, all played under Classic mode (without using Evalfiles)However (like recent Tour) no much Elo progress since many time!On other hand, CF EXT is SSE41, where Cfish 030820 is POPCNTI mean both are not AVX2...probably they would get more points if...Btw, some are out (BlackMarlin 15.7 and Fisherov Monk 1.2) due toBoth performed bellow than expected..no idea..but it's waste of time!Forget everything, some are quite new but their performance is closeTo Stockfish 11 (released 3 years ago)  I wonder.. what is going on?Anyhow...FUN is one of most important parts... so no BIG problem!)What I can say more (via both tours) we have several Number Ones!
The Winners StockfishMZ / SF SkyNet - Congratulations to M.Z / SkyNet!
Rank Name               Elo    +    - Games Score Oppo. Draws    1 SF-MZ 170522      3576    7    8   760   53%  3557   87%    2 SF SkyNet 010423  3576    7    8   760   53%  3558   90%    3 Polyfish 260323   3574    7    8   760   52%  3558   90%    4 SF Polyglot 15    3573    7    8   760   52%  3558   88%    5 CF EXT 291120     3573    7    8   760   52%  3558   84%    6 SF-PB 190422      3573    7    8   760   52%  3558   89%    7 Stockfish 240223  3572    7    8   740   52%  3559   89%    8 Cfish 030820      3571    8    8   760   52%  3558   85%    9 Zeus 26.5         3571    7    8   760   52%  3558   87%   10 PREDATOR X5       3570    7    8   760   52%  3558   89%   11 RapTora 2.2       3570    7    8   760   52%  3558   88%   12 DeepBlue 290323   3570    7    8   760   52%  3558   90%   13 AI 27.0           3570    7    8   760   52%  3558   89%   14 EMAN 8.90         3568    8    8   740   51%  3559   90%   15 CiChess170720     3566    9    9   580   50%  3564   88%   16 Kayra 1.7         3565    8    8   700   51%  3559   90%   17 Corchess 010423   3564    8    8   740   51%  3559   89%   18 BrainFish 240720  3564    9    9   580   50%  3564   85%   19 Cool Iris 5.2     3563    9    9   520   50%  3565   89%   20 Redfish 300322    3563    8    8   700   51%  3560   90%   21 Kookaburra 1.03a  3563    8    8   740   51%  3559   90%   22 Solidor 121122    3562    8    8   700   51%  3558   90%   23 Tiger 180520      3561    9    9   580   50%  3564   84%   24 Fisherov 098m     3560    8    8   660   50%  3562   85%   25 Cfish 030820 C40  3559    8    8   660   50%  3559   83%   26 BrainLearn 22     3559    8    8   680   50%  3560   91%   27 Raubfisch X48e    3554    9    9   580   49%  3564   87%   28 Honey v14         3554    8    8   680   49%  3560   88%   29 YuliGM PrO4       3551    9    8   600   49%  3560   87%   30 Genko 1.1         3551    9    9   580   49%  3561   92%   31 Stockfish 11      3550    9    9   560   48%  3563   85%   32 Patzer AI 020223  3548    8    8   620   48%  3561   89%   33 ShashChess 30     3546    9    8   580   48%  3561   86%   34 FatFritz 3        3542    8    8   600   47%  3561   89%   35 Leptir 280223     3534    8    8   600   46%  3561   83%   36 Bluefish 270320   3532    8    8   540   44%  3566   84%   37 SolistaAttack v2  3529    8    8   600   45%  3562   80%   38 Ditto 130221      3522    8    8   500   43%  3568   73%   39 DarkSister 4.6    3517    8    7   560   42%  3562   76% 
      • Calculated by Bayeselo program / Stockfish 11 engine is fixed to 3550 Elo
     More Details: • Mostly of the engines are AVX2, and tested as NON-NNUE • All are played with default Contempt, exc. Cfish via 40 too • And as usual, for all:  move overhead is configurated to 100     Meanwhile, no any game recorded to be lost on time..great! • The overall draw ratio (based on 13020 games) is high: 87% • All the played games are available (in PGN): NON-NNUE VI
--------------------------------------------------------------------------------------------------------
    2nd NON-NNUE tour, but as MP (with the above Top 11 players):     Exc.(just out of curiosity) Cfish 030820 MP with Contempt 40 played too     Cutechess, 2m+1s, Ponder ON, 4 Cores/Game, 512 MB hash     Note: as usual Cfish + CF EXT produced lower draws..not bad.!
    Via latest GAMES (by Cfish 030820 MP C40), standings are changed    The Winner: Cfish 030820 - Congratulations to Cfish, Stockfish team!    Btw, e.g previous Leaders were 3 engines: Cfish, Polyfish,Stockfish     Note also that exactly the same Cfish ver. is already 7-times Champ!    What does it mean?...no words to say exc. just almost as Perfection!    And under these conditions (without assistance) Cfish is still as KING!
 Rank Name                 Elo   +   -  games score oppo. draws    1 Cfish 030820 MP      3609   7   7   660   51%  3602   85%    2 Polyfish 260323 MP   3606   7   7   660   51%  3602   90%    3 Stockfish 240223 MP  3606   7   7   660   50%  3603   92%    4 DeepBlue 290323 MP   3605   7   7   660   50%  3603   94%    5 Zeus 26.5 MP         3604   7   7   660   50%  3603   91%    6 RapTora 2.2 MP       3604   7   7   660   50%  3603   91%    7 Cfish 030820 MP C40  3603   7   7   660   50%  3603   84%    8 SF SkyNet 010423 MP  3602   7   7   660   50%  3603   93%    9 SF Polyglot 15 MP    3602   7   7   660   50%  3603   90%   10 SF-MZ 170522 MP      3600   7   7   660   50%  3603   92%   11 CF EXT 291120 MP     3598   7   7   660   49%  3603   87%   12 PREDATOR X5 MP       3596   7   7   660   49%  3603   93% 
     • Calculated by Bayeselo / Draw Ratio (based on 3960 games) is high: 90%