Chess Engines Diary

  A match in which the Fritz 20 engine tested the new version of the Halogen 15.24.0 engine. As you can see from the results, the Fritz 20 is much better. CEDR   773.114 games download   (01.11.2025) 💾  Tournament  download with 24 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Arena 👍 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engine Score (Tie) ***** +/-/= 1: Fritz 20 14.5 / 24 137.75 ½½1½½½111½½1½½½½½½½½½½½½ (+5 -0 =19) 2: Halogen 15.24.0 9.5 / 24 137.75 ½½0½½½000½½0½½½½½½½½½½½½ (+0 -5 =19)

  PlentyChess 7.0.22 won a major tournament of new chess engine versions. Reckless 0.9.0 dev.967b JA took second place, and Halogen 15.21.0 took third. It recently performed well against the Ynode 0219 engine, which we tested. CEDR   773.114 games download   (01.11.2025) 💾  Tournament  download with 506 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Arena 👍 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engine CEDR Score (Tie) Chg +/-/= 1: PlentyChess 7.0.22 3729 38.0 / 44 748.50 +4 (+32 -0 =12) 2: Reckless 0.9.0 dev.967b JA 3730 37.5 / 44 724.00 +0 (+31 -0 =13) 3: Halogen 15.21.0 3688 37.0 / 44 710.50 +0 (+30 -0 =14) 4: Halogen 15.23.0 3688 36.5 / 44 680.50 -4 (+31 -2 =11) 5: Lc0 0.32.1 ...

Artemis 19TR sl won another tournament of the strongest chess engines. Kookaburra 3.11 took second place, and Stockfish dev-20251122 took third. Detailed results can be found in the table.   CEDR   773.114 games download  (01.11.2025) GPU NVIDIA  RTX 3060 ti. GUI-Banksia, For Every Engine only 1 CPU and 512 Hashtables,    Book  - 4 GM mvs  book,  6TBs. 🕒🕒Time 3'+3"   Tournament  download with 760 games   #chessenginesdiary P Engine Score (Tie) +/-/= 1: Artemis 19TR sl 39.0 / 76 1480.25 (+2 -0 =74) 2: Kookaburra 3.11 39.0 / 76 1479.25 (+3 -1 =72) 3: Stockfish dev-20251122 39.0 / 76 1479.00 (+3 -1 =72) 4: Tactical Titan 5.8 38.5 / 76 1462.50 (+1 -0 =75) 5: CorChess 20251005 38.5 / 76 1462.25 (...

Lolbot - UCI chess engines Author: Lorentz Vedeler Lolbot – We haven't tested previous versions of this chess engine yet. This latest version will be competing in our tournaments tomorrow – results coming soon. Lolbot 0.2.2 alpha download

Kookaburra 3.11 wins the Elite Chess Engines Tournament. Artemis 18.9 TR sl took second place, and PlentyChess 7.0.20 took third. It's worth noting the a PlentyChess engine's performance – it's getting stronger and stronger. I wonder if it will challenge Stockfish's dominance?   CEDR   773.114 games download   (01.11.2025) 💾  Tournament  download with 240 games 💻 Dell G15 SE, i7-11800H RAM 16,0 GB  🖬 GUI - Fritz 17 👍 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engine Score (Tie) +/-/= 1: Kookaburra 3.11 18.0 / 30 246.00 (+6 -0 =24) 2: Artemis 18.9 TR sl 17.5 / 30 243.50 (+5 -0 =25) 3: PlentyChess 7.0.20 17.0 / 30 236.50 (+4 -0 =26) 4: Reckless 0.9.0 dev97b 17.0 / 30 235.75 (+4 -0 =26) 5: JigSaw 6.0 17.0 / 30 234.7...

Halogen - UCI chess engine. The engine is constantly being developed by the author, and the latest stable version has risen to 15th place in the CEDR rankings. We will be testing this version soon. Author: Kieren Pearson  Rating Chess Engines Diary CEDR=3688 Halogen 15. what's new? Elo gaining patches: Apply 4-ply continuation history for quiet move ordering by @KierenP in #695 Increase RFP margin for positions with active threats that need to be resolved by @KierenP in #696 SPSA LTC tune by @KierenP in #697 Add Continuation Correction History by @KierenP in #698 Threat history should consider all threats, on both from and to square by @KierenP in #699 Include Knight capture Bishop as a threat for threat calculations by @KierenP in #700 Reduce search depth on root fail high by @KierenP in #701 Apply double negative extensions for non-singular cut ndoes by @KierenP in #702 Apply double negative extensions to near multi-cut nodes by @KierenP in #703 SPSA LTC tune by @Ki...

PlentyChess 7.0.22 won another tournament of new chess engine versions. PlentyChess 7.0.20 and Reckless 0.9.0 dev967b finished 2nd and 3rd, with identical results. Tarnished 4.0 (Consort) dev.1137 JA had problems running in GUI-Fritz 17, crashing 19 times!   CEDR   773.114 games download   (01.11.2025) 💾  Tournament  download with 272 games 💻 HP ENVY i5-8250U 8GB RAM  🖬 GUI - Fritz 17 👍 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" P Engine Score (Tie) +/-/= 1: PlentyChess 7.0.22 25.5 / 32 313.50 (+19 -0 =13) 2-3 PlentyChess 7.0.20 25.5 / 32 309.75 (+19 -0 =13) 2-3 Reckless 0.9.0 dev967b 25.5 / 32 309.75 (+19 -0 =13) 4: Halogen 15.23.0 25.0 / 32 317.50 (+19 -0 =12) 5: Reckless 0.9.0 dev.fe4 JA ...