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New version chess engine: Tenax 1.0 (Windows and Linux)

Tenax (a Latin term meaning tenacious) is a UCI compatible chess engine written in ANSI C.  ------------------  TENAX ver. 1.0.0 ------------------ Tenax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ----------------------------- Tenax is a UCI chess engine written in C and started as a private hobby project to see the engine improve over previous versions. This version of Tenax has support for Syzygybases. Tenax is an AB chess engine and evaluates positions with a neural network, for this reason requires a CPU with the SSSE3 instruction set (which almost all CPUs have), and will not run on systems lacking these instructions. AVX/AVX2 have become ubiquitous in modern processor design, and are necessary to capitalize on the full strength of Neural Network method. Users with Intel CPUs containing BMI2 support (also known as PEXT), should use the BMI2 binary for optima
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Recent posts

Dragon 3.3 wins Middle Class Engines Tournament (Tests by Jörn Gronemann, Heide, 2024.04.21 Time: 3'+3")

The Dragon 3.3 engine is still the best among middle-class engines. There is no change in the top positions. Berserk 13 was in second place and Obsidian 12.0 was in third place. The PlentyChess 1.0.0 engine had a very good debut. GPU NVIDIA  RTX 3060 ti. GUI-Banksia, For Every Engine only 1 CPU and 512 Hashtables, Book -  Open-ICCF_4moves ,  6TBs. 🕒🕒Time 3'+3"   630 tournaments games download   💾 All games CEDR  317.321 games download  01.04.2024  (3'+3")    @chessenginesdiary P Engine Score +/-/= 1: Dragon 3.3 51.0 / 84 (+22 -4 =58) 2: Berserk 13 50.5 / 84 (+21 -4 =59) 3: Obsidian 12.0 48.5 / 84 (+18 -5 =61) 4: PlentyChess 1.0.0 46.5 / 84 (+14 -5 =65) 5: Alexandria-6.1.0 46.0 / 84 (+14 -6 =64) 6: Ethereal 14.25 46.0 / 84 (+1
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New chess engine: Saxton 1.0.0

  Saxton - UCI chess engine, Senior Project/CSC 480 Project Created by Aaron Lampert,  CSC 480 Professor: Dr. Rodrigo Canaan   Requires the NNUE weights to be in same directory as executable.   Saxton 1.0.0 download
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New chess engine: Topas 1.3.3

  Topas - UCI Chess Engine  Author: Sam Nelson Topas is an open source UCI chess engine written in Rust with a focus on clean, readable code.  Topas is a "from scratch" implementation I created as a hobby project with the goal of learning more about chess algorithms and Rust programming in general. v.1.3.3: The following features are implemented in this release: Universal Chess Interface (UCI) support, described in the README Chess board representation and fast attack/movement patterns using bitboards Negamax with alpha-beta pruning, using a principal variation search, to efficiently search to a configurable depth Iterative deepening with aspiration windows to allow for more efficient move ordering and time management Transposition tables (with Zobrist hashing) for fast lookup and enhanced move ordering Move ordering based on principal variation, cut nodes, capture moves sorted via MVV-LVA (Most Valuable Victim, Least Valuable Attacker), and killer moves Quiescence search wit
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New chess engine: Akira CE 1.0.7

  Akira CE - winboard chess engine Author: Adam Adair Version: 1.0.7 Fixed ambiguous draw offerings and theirs acceptance from some real advantage. Calibrated time settings for extreme bullet plays (~200 ms per move, though less is still gonna lose on time) Approx. CCRL rating: 1750,  CEDR ranking - engine not tested yet Akira CE 1.0.7 download
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Raid 3.6 TR wins New Engines Test, by Chess Engines Diary 21-22.04.2024

 This small tournament of new chess engines was won by Raid 3.6 TR . Right behind him, ShashChess 35.2 and Stockfish 20240330 Ivec , half a point less. The new engine achieved quite good results in our tests - Motor 0.4.0 💾  650 (!) games from the tournament download   👍 @chessenginesdiary  Country - Poland, City -  Malbork 🕓 Time 3'+3" 💻 Dell G15 SE, i7-11800H RAM 16,0 GB  🖬 GUI-Aquarium All  CEDR  317.321 games download  (01.04.2024 - 3'+3")  Pl Engine 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 Sco 1 Raid 3.6 TR = = 1 0 = = = = = = = 1 = 1 = = = = = 1 1 1 1 = 1 1 1 1 1 1 1 1 23.0 2 ShashChess 35.2 = =
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Stockfish 20240411 wins New Engines Tournament, by Chess Engines Diary18-29.04.2024

The April compilation Stockfish 20240411 won the tournament. Two Stockfish varieties, Yuliirma 4.0 and HypnoS 030424 , were half a point behind. Among the new versions of other engines, it is worth paying attention to the good result of the Saturn 1.3 . 💾  650 (!) games from the tournament download   👍 @chessenginesdiary  Country - Poland, City -  Malbork 🕓 Time 3'+3" 💻 HP Pavilion i5-1035G1 8GB RAM  🖬 GUI-Banksia All  CEDR  317.321 games download  (01.04.2024 - 3'+3")  Tech table: Engine KN/mov NPS dep/mov time/mov mov/game time/game fails Arasan 24.2.1 3334 478540 25.8 7.0 42.4 295.4 Caissa 1.18 5559 1037325 27.2 5.4 56.6 303.4 Cheng 4.47 4722 784546 19.4 6.0 51.1 307.6 CiorapBot 0.3 740 173434 19.3 4.3 42.9 183.0 Cool Iris 12.10 2812 463666 24.9 6.1 52.0 315.2 Critter 1.6a 10434 1662340 18.4 6.3 47.3 296.6 DanaSah 9.1 1411 243085 18.1 5.8 60.5 351.3 Fatalii 0.6.1 1316 200899 12.3 6.5 39.0 255.7 Fire 9.3 5300 944082 20.4 5.6 56.8 3
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Today start 1 League Chess Engines Diary, edition 03/2024

Today start 1 League Chess Engines Diary, edition 03/2024 Time: 3'+3"  GUI-Fritz 17 1 League Edition 03/2024 - 3’+3” Rating 1. SugaR Al SE 3725 2. Lc0 BT4 3712 3. Dragon 3.3 3711 4. Stockfish 16.1 3760 5. Corchess 20240422 3750 6. Berserk 13 3692 7. ShashChess 35.2 3747 8. RubiChess 20240112 3650 9. Clover 6.1.19 3644 10. Caissa 1.18 3671 11. Rofchade 3.1 3620 12. Chess-System-Tal-NNUE-2 3642 13. Alexandria 6.1.0 3622 14. Obsidian 12 3660 15. Slowchess 2.9 3554 16. Koivisto 9.20 Impan 3611 TOP-64 League Chess Engines Diary -  more
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Chess engine: Stockfish 20240421 Ivec

Stockfish - UCI chess engine, compiled by Ivec Rating CEDR=3742 We highly recommend this Stockfish compilation (by Ivec). The engine performs very well in our tests. Chess Engines Diary Team. Stockfish 20231024 Ivec - results: Z5 2.1 6/6 +6 6 Games Seer 2.7.0 4.5/6 +3 6 Games Polyfish 231022 3/6 +0 6 Games Brainlearn 26.1 3/6 +0 6 Games Berserk 12 3/6 +0 6 Games Obsidian 6.0 4/4 +4 4 Games Pawn 2.0 4/4 +4 4 Games Lynx 0.19.0 4/4 +4 4 Games Pingu 2.0.0 4/4 +4 4 Games Alpaca 0.2.5 4/4 +4 4 Games Mida 2.2 4/4 +4 4 Games Boychesser 1.0 4/4 +4 4 Games Tofiks 1.3.0 4/4 +4 4 Games Sirius 5.0 4/4 +4 4 Games RukChess 3.0.16 3.5/4 +3 4 Games SF PB 221023 2/4 +0 4 Games ShashChess 34.1 2/4 +0 4 Games Raid 2.78i_X 2/4 +0 4 Games Vafra 12.5 Cfish 2/4 +0 4 Games Hazard 3.78 2/4 +0 4 Games Lux 3.4 2/2 +2 2 Games Stockfish 20240421 Ivec NNUE  download
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New version chess Engine: Hazard JigSaw 5.5i (Stockfish derivatives)

Hazard -  (Stockfish derivatives) by Tanick Ramz  Rating Chess Engines Diary CEDR=3742 Note: We have added the necessary nnue files to the engine! Hazard 4.21  - results with other engines: Eman 9.90 33/62 +4 62 Games Brainlearn 27 22.5/48 -3 48 Games Leptir Big-Ultra 23/44 +2 44 Games ShashChess 34.6 22.5/44 +1 44 Games SF-PRO 05.02.2024 19/40 -2 40 Games AbbyStein 2.8 17.5/36 -1 36 Games INCOGNITO 5 PRO 17/34 +0 34 Games Leptir 230124 15.5/30 +1 30 Games Kookaburra 2.00 13.5/26 +1 26 Games Sawfish 2TC 13/26 +0 26 Games Cool Iris 11.80 12/24 +0 24 Games Dragon 3.3 12/22 +2 22 Games CorChess 20240209 11.5/22 +1 22 Games Stockfish 20240209 11/22 +0 22 Games Deep Blue 20230628 10.5/22 -1 22 Games Stockfish 20240214 10.5/20 +1 20 Games SF-PRO 19.01.2024 10.5/20 +1 20 Games CorChess 20240122 10/20 +0 20 Games Polyfish 240112 10/20 +0 20 Games CorChess 20240213 9.5/20 -1 20 Games Killfish 071223 9/18 +0 18 Games Hazard 4.21  - tournament results: 2024.01.20 AcerArenaTournament 38.5/50 +2
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New version chess engine: CorChess 20240422

  CorChess   is a clone of Stockfish maintained for better performance on long time controls, trying at least partially to fill the gap between regular tests and demands of correspondence players. 👍The Chess Engines Diary team recommends this engine for analyzing chess games and particularly complex positions. Thanks to the Author  Ivan Ivec Rating CEDR=3750 (3'+3")    CorChess 20240422 download CorChess 20240323  - results: Yuliirma 4.0 6/12 +0 12 Games SF-PRO 16.03.2024 6/12 +0 12 Games Yuli GM Pro 16 5.5/12 -1 12 Games Big-SF 220324 5/10 +0 10 Games Deep Blue-20240315-killer 5/10 +0 10 Games Stockfish 20240322 5/10 +0 10 Games Kookaburra 2.00 5/10 +0 10 Games HypnoS 240324 5/10 +0 10 Games JigSaw 5.1 5/10 +0 10 Games Incognito 8 5/10 +0 10 Games Cool Iris 12.20 D-3072 5/10 +0 10 Games Ippolit 032324 6/6 +6 6 Games Stockfish 20240322 Ivec 3/6 +0 6 Games Stockfish 16.1 3/6 +0 6 Games SF 16.1 MPV 3/6 +0 6 Games Big-SF 210324 3/6 +0 6 Games HypnoS 190324 3/6 +0 6 Games Maraud
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