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My email: jotes@go2.pl





New chess opening book: M9.5 (bin)

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  Mustafa Canseven Books: Book M9.5 (bin) - download

Chess engine: CorChess 2020-10-31 NNUE

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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. Rating JCER=3245 CorChess 2020-10-31 NNUE - download

Spike 1.4 wins JCER League group E2 edition 39, 2020.10.27 - 2020.10.29

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Promotion to the group E1: Spike 1.4, DisasterArea 1.65 and Spark 1.0.  Relegation to group E3: Dimitri 5.2.3, Drosophila 1.6 and Gojemat 8.64. Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   190 games

Chess engine: Foxsee 5.21

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FoxSEE - UCI chess engine Author: Zixiao Han  Rating JCER=2636 FoxSEE 5.21 download

Chess engine: Cinnamon 2.3.3 (Windows, Mac, Linux and Android)

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Cinnamon - UCI chess engines, Author Giuseppe Cannella  Rating JCER = 2568    Cinnamon 2.3.3 download

Chess engine: Combusken 1.4

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Pokemon Combusken Combusken is a UCI-compliant open source chess engine. Rating JCER=2962 Author: Marcin Henryk Bartkowiak (Poland) Combusken 1.4 download

Chess engine: Raubfisch X43d and GTZ22d and NNUE

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Raubfisch is an engine derived from Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler) Rating JCER - 3270  (2st place) Raubfisch X43c and GTZ22c_NNUE - download

Only for donors added: 16 chess engines.

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There is a transfer to another virtual disk. Sponsors (min. 15$) please contact us by email. 16 chess engines: BBC 1.4 + sf NNUE, Belofte 2.0.6, Cfish 261020 NNUE, Cfish 271020 NNUE, Cinnamon 2.3.1, Cinnamon 2.3.2, Crystal 201027, Eubos 1.1.4, Halogen 8, Igel 2.8.0, Mr bob 0.9.0, OliThink 5.9.0, Stash 22.0, Stockfish 20102808, Stockfish 20102808_SFisGOD, Stockfish 20102823. Book : --- GUI : --- ================================================   Full acces to the folder: CHESS ENGINES - about 3000 files! If you do not want to wait a long time for download donate a minimum of 15$, enter your email - you will gain full access to the folder with chess engines and games, tables, etc. My email: jotes @ go2.pl

Fisherov 0.93c NNUE wins JCER Fritz Tournament (Test new engines), 2020.10.29 - 2020.10.30

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  Temp 3'+3" Intel Core i7 7,9 GB GUI Fritz 17 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   180 games

Chess engine: Stockfish 20102823 and NNUE

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Stockfish - UCI chess engine, compiled by Syzygy1 Rating JCER=3294 Timestamp: 1603924837 Do not skip non-recapture ttMove when in check The qsearch() MovePicker incorrectly skips a non-recapture ttMove when in check (if depth <= DEPTH_QS_RECAPTURES). This is clearly not intended and can cause qsearch() to return a mate score when there is no mate. Introduced in cad300c and 6596f0e, as observed by joergoster in #3171 and #3198. This PR fixes the bug by not skipping the non-recapture ttMove when in check. Passed non-regression STC: https://tests.stockfishchess.org/tests/view/5f9867ea6a2c112b60691b10 LLR: 2.98 (-2.94,2.94) {-1.25,0.25} Total: 27112 W: 2943 L: 2842 D: 21327 Elo +1.29 Ptnml(0-2): 127, 2170, 8878, 2237, 144 Passed non-regression LTC: https://tests.stockfishchess.org/tests/view/5f9967326a2c112b60691bb0 LLR: 2.99 (-2.94,2.94) {-0.75,0.25} Total: 18392 W: 807 L: 738 D: 16847 Elo +1.30 Ptnml(0-2): 9, 655, 7802, 718, 12 Bench: 3870606 Stockfish 20102823 and NNUE dow

Stockfish 20102808 wins JCER Test new engines, 2020.10.29 - 2020.10.30

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Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   90 games  

Chess engine: OliThink 5.9.0 (Windows, Linux and Mac)

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OliThink is an open-source WB engine by Oliver Brausch MSYS2/MinGW static builds by T. Poppins Rating JCER=2718 OliThink 5.9.0 - download

Chess engine: Cinnamon 2.3.2

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Cinnamon - UCI chess engines, Author Giuseppe Cannella  Rating JCER = 2568    Cinnamon 2.3.2 download

Chess engine: Stockfish 20102808_SFisGOD and NNUE

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Stockfish - UCI chess engine, compiled by SFisGOD Rating JCER=3294 Timestamp: 1603869214 Update default net to nn-2eb2e0707c2b.nnue Optimization of the net weights of the 32 x 32 layer (1024 parameters) and net biases of the 512 x 32 layer (32 parameters) using SPSA. Tuning of 32 x 32 Layer (800,000 games, 5 seconds time control): https://tests.stockfishchess.org/tests/view/5f942040d3978d7e86f1aa05 Tuning of 512 x 32 Layer (80,000 games, 20 seconds time control): https://tests.stockfishchess.org/tests/view/5f8f926d2c92c7fe3a8c608b STC: LLR: 2.96 (-2.94,2.94) {-0.25,1.25} Total: 17336 W: 1918 L: 1754 D: 13664 Elo +3.29 Ptnml(0-2): 79, 1344, 5672, 1480, 93 https://tests.stockfishchess.org/tests/view/5f9882346a2c112b60691b34 LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 37304 W: 1822 L: 1651 D: 33831 Elo +1.59 Ptnml(0-2): 27, 1461, 15501, 1640, 23 https://tests.stockfishchess.org/tests/view/5f98a4b36a2c112b60691b40 Bench: 3403528 Stockfish 20102808_SFisGOD and NNUE download

Chess engine: Stockfish 20102808 and NNUE

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Stockfish - UCI chess engine, compiled by FauziAkram Rating JCER=3294 Timestamp: 1603869089 Bishop Pawns based on Files Passed STC: https://tests.stockfishchess.org/tests/view/5f8cc8145a4eacb45305da3c LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 132544 W: 27795 L: 27328 D: 77421 Elo +1.22 Ptnml(0-2): 2756, 15558, 29272, 15835, 2851 Passed LTC: https://tests.stockfishchess.org/tests/view/5f8df614bacb75a4f9a4721e LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 169608 W: 23257 L: 22622 D: 123729 Elo +1.30 Ptnml(0-2): 1408, 16316, 48758, 16877, 1445 Bench: 4067106 Stockfish 20102808 and NNUE download

Chess engine: Crystal 2020-10-27 NNUE

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Crystal  is a free, powerful UCI chess engine derived from Stockfish.  Author: Joseph Ellis   Rating JCER=3214 Crystal 2020-10-27 download

Chess engine: Stash 22

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Stash - UCI chess engine Author:  Morgan Houppin Rating JCER=2728 Stash 22 download

Chess engine: MrBob 0.9.0

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MrBob - UCI chess engine (made using C++)  Author: Vincent Yu  Rating JCER=2849   MrBob 0.9.0 download

Chess engine: Eubos 1.1.4

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Eubos - a  basic Java chess engine, written for kicks. Uses jcpi for the UCI protocol parts. Kind of weak, doesn't evaluate for king safety, for example. Now uses transpostion hashing, but because it runs in the Java VM on a bog standard PC, doesn't search very deeply (around 100K Nodes/s, though this is actually quite hard to evaluate due to the hashing).  Rating JCER= 2471 v.1.1.4: Now running nearly twice as fast as v1.0.6. Bug fixes when scoring mate positions in the hash table; Eubos now finds deeper mating sequences, for example Mate-in-7+, reliably. You must have installed Java version 8 on the PC to use Eubos (get it from java.com) To install Eubos as an engine in Arena: 1. Select Engines > Install New Engine 2. In the file browser dialog that appears, change the drop down to *.bat 3. Navigate to the Eubos binary location, select the Eubos.bat 4. Select UCI protocol to communicate with Eubos 5. That's it!  Author: Chris Bolt Eubos 1.1.4 download

Chess engine: Belofte 2.0.6

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Belofte is an open-source WB engine Author - Yves De Billoëz  Rating JCER=2526 Belofte 2.0.6 - download

Chess engine: Cfish 2020-10-27 and NNUE

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CFish - UCI chess engine, Rating JCER=3090 "CFish, a port of Stockfish written in plain C by Ronald de Man, first published on GitHub in July 2016. Possibly inspired by the asmFish project to speed up Stockfish using a programming language closer to the machine, the purpose of CFish is to explore possible optimization issues of C versus C++ compilers" [Chess Programming Wiki]. Cfish 2020-10-27 - download

Stockfish 270920 NNUE 1 League JCER edition 39, 2020.10.25 - 2020.10.28

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  Relegation to 2 League:  rofChade 2.3 and  Xiphos 0.6.1 .  Temp 3'+3" Intel Core i7 7,9 GB GUI Fritz 17 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   264 games

Kohai 1.0 wins group E1, League JCER edition 39, 2020.10.25 - 2020.10.27

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  Promotion to the 6 League: Kohai 1.0 and  Counter 3.5 .  Relegation to group E2: Orion 0.7, Atlas 3.91 and  Ruydos 1.1.11 . Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   190 games

Chess engine: Cinnamon 2.3.1

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Cinnamon - UCI chess engines, Author Giuseppe Cannella  Rating JCER = 2568    Cinnamon 2.3.1 download

Chess engine: Igel 2.8.0 NNUE

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Igel - UCI chess engine, Rating JCER=2954 Author : Volodymyr Shcherbyna (Fork of GreKo 2018.01) Igel 2.8.0 news ------------- Fix null move pruning bug (54 elo) Use 250cp as lazy eval threshold Improve time management for sudden death time controls Use Dietrich Kappe's Night Nurse improved net (internal version ninu-0.2.5b.nnue) Igel 2.8.0 - download

Chess engine: Halogen 8.0 and NNUE

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Halogen - UCI chess engine Author: Kieren Pearson  Rating JCER=2707  In self testing, Halogen 8 is approximately 200 elo stronger than Halogen 7. Halogen 8 features a larger neural network than was contained in Halogen 7, but due to improvements and optimisations runs significantly faster. The current network was trained using a private neural network trainer written in C by @AndyGrant. I can't thank Andrew enough for the work he has done to support the development of Halogen. As always, multiple builds are provided below. Halogen8-x64-AVX2.exe is recommended if it will run on your computer. Ideally, download each exe and run each with a bench command and use the one with the highest nodes per second (nps). It is not recommended that you compile it yourself because it is currently experiencing significant slowdowns in multithreaded mode when compiled with gcc. Halogen 8.0 download

Chess engine: Cfish 2020-10-26 and NNUE

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CFish - UCI chess engine, Rating JCER=3090 "CFish, a port of Stockfish written in plain C by Ronald de Man, first published on GitHub in July 2016. Possibly inspired by the asmFish project to speed up Stockfish using a programming language closer to the machine, the purpose of CFish is to explore possible optimization issues of C versus C++ compilers" [Chess Programming Wiki]. Cfish 2020-10-26 - download

Cfish 231020 NNUE wins JCER - Fritz Tournament (Test new engines), 2020.10.23 - 2020.10.25

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  Temp 3'+3" Intel Core i5-1035G1 7,9 GB GUI Fritz 17 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   380 games

Chess engine: BBC 1.4 + Sztokfisz NNUE

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  BBC (Bit Board Chess) -  UCI chess engine Author: Monkey King own online GUI bitboard board representation pre-calculated attack tables magic bitboards for sliding pieces encoding moves as integers copy/make approach for making moves negamax search with alpha beta pruning PV/killer/history move ordering iterative deepening PVS (Principle Variation Search) LMR (Late Move Reduction) NMP (Null Move Pruning) razoring evaluation pruning / static null move pruning Transposition table (up to 128MB) PURE Stockfish NNUE evaluation + 50 move rule penalty (gives over 600 Elo points) UCI protocol NOTE: Make sure to paste *.nnue file into the same folder where engine binary executable lives BBC 1.4 + Sztokfisz NNUE download      

Texel 1.08a13 wins JCER - Arena Test new engines, 2020.10.23 - 2020.10.25

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  Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   240 games

Ethereal 12.75 NNUE wins JCER CUP-2020 Group 6, 2020.10.17-25, Temp 60' + 10"

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  Promotion to the semi-finals: Ethereal 12.75 NNUE and  Igel 2.7.0 NNUE ,  Waiting room: Wasp 4.0 . JCER 2020 Cup - Group No.6 Temp 60' + 10"  GUI - Fritz 17, 90 games download  

First Test Supernova 2.1.4, 2020.10.24-25

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  Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   100 games

Only for donors added: 31 chess engines, 2 book.

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There is a transfer to another virtual disk. Sponsors (min. 15$) please contact us by email. 31 chess engines: Alouette 0.1.3, BBC 1.3 NNUE, Benjamin2, BrainLearn 12.1, Cfish 221020 NNUE, Cfish 231020 NNUE, Chess-At-Nite, Cinnamon 2.3, Cosette 2.0, Crystal 191020, Drofa 1.31, Ethereal 12.75 NNUE, Fisherov 0.93C NNUE, Minic 2.51, Minic 2.53, MisterQueen, OliThink 5.8.7, OliThink 5.8.8, OliThink 5.8.9, SF-Bobby, Stash 21.2, Stockfish 20101413, Stockfish 20101419, Stockfish 20101419 UnaiCorzo, Stockfish 20101813, Stockfish 20102220, Stockfish 20102220_syzygy1, Supernova 2.1, Supernova 2.1.2, Supernova 2.1.3, Supernova 2.1.4. Book :  NebulaBlue71x, STP-ABK current. GUI : --- ================================================   Full acces to the folder: CHESS ENGINES - about 3000 files! If you do not want to wait a long time for download donate a minimum of 15$, enter your email - you will gain full access to the folder with chess engines and games, tables, etc. My email: jotes @ go2.pl

Chess engine: Stockfish 20102220_syzygy1 and NNUE

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Stockfish - UCI chess engine, compiled by syzygy1 Rating JCER=3294 Timestamp: 1603392616 More incremental accumulator updates This patch was inspired by c065abd which updates the accumulator, if possible, based on the accumulator of two plies back if the accumulator of the preceding ply is not available. With this patch we look back even further in the position history in an attempt to reduce the number of complete recomputations. When we find a usable accumulator for the position N plies back, we also update the accumulator of the position N-1 plies back because that accumulator is most likely to be helpful later when evaluating positions in sibling branches. By not updating all intermediate accumulators immediately, we avoid doing too much work that is not certain to be useful. Overall, roughly 2-3% speedup. This patch makes the code more specific to the net architecture, changing input features of the net will require additional changes to the incremental update code as dis

CiChess NNUE 041020 for Android

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CiChess NNUE 041020 for Android download  

First Test chess engine Cosette 2.0, 2020.10.23-24

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  Temp 3'+3" Intel Core i5 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   100 games

GoldOno 7.0 wins JCER - Android Chess Engines Tournament, 2020.10.23

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  Temp: 3'  90 games download ,  GUI - Chess Tournament, Tablet - Huawei MediaPad T3 10, 2GB RAM, all 4.912 games Best progress: CFish 140920 +36

JCER Match: Cfish 221020-Fisherov 0.93c, 3'+3", 2020.10.22 - 2020.10.23

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  Temp 3'+3" Intel Core i7 7,9 GB GUI Fritz 17 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   100 games

Chess engine: OliThink 5.8.9 (Windows, Linux and Mac)

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OliThink is an open-source WB engine by Oliver Brausch MSYS2/MinGW static builds by T. Poppins Rating JCER=2718 OliThink 5.8.9 - download

Chess engine: Cfish 2020-10-23 and NNUE

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CFish - UCI chess engine, Rating JCER=3090 "CFish, a port of Stockfish written in plain C by Ronald de Man, first published on GitHub in July 2016. Possibly inspired by the asmFish project to speed up Stockfish using a programming language closer to the machine, the purpose of CFish is to explore possible optimization issues of C versus C++ compilers" [Chess Programming Wiki]. Cfish 2020-10-23 - download

Stockfish 20101419_UnaiCorzo wins JCER - Arena Test new engines, 2020.10.21 - 2020.10.23

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  Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   182 games

Chess engine: Cosette 2.0

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  Cosette - UCI chess engine (written in C# for .NET Core platform) Author: Paweł Tearth 2.0: -Added fifty-move rule detection -Added new evaluation functions: pawn shield, bishop pair, doubled rooks, a rook on open file -Added "evaluate" command to get FEN position evaluation -Added ability to postpone moves generation before PV move check -Added evaluation hash table -Added Arbiter app to speed up the process of testing engine -Added support for UCI's winc and binc -Fixed PV node detection -Fixed invalid detection of passing pawns -Fixed invalid best move when a search has been aborted -Fixed static exchange evaluation - in rare cases the table was returning an invalid score -Improved method of probing piece type at the specified field -Improved time management - now allocated time depends on the moves count -Improved move ordering: castling and better promotions are now prioritized -Improved transposition tables: entries are now smaller, have proper checkmate scores (

Chess engine: Alouette 0.1.3

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Alouette - UCI chess engine  Rating JCER=2262 Author: Roland Chastain v.0.1.3 Fixed castling generation Added debug output for castling generation Remade the Perft function Alouette 0.1.3 - download  

First Test chess engine Benjamin 2, 2020.10.20-22

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  Temp 3'+3" Intel Core i7 7,9 GB GUI  Arena 3.5.1 Book  Perfect 2019 All JCER games 123.432 Table created  Scid vs PC JCER League Tournament:   100 games

Chess engine: Stockfish 20102220 and NNUE

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Stockfish - UCI chess engine, compiled by Xoto10 Rating JCER=3294 Timestamp: 1603390095 Reduce big time spikes by reducing PV re-searches. Save time by reducing PV re-searches above original depth. Instead use 5% extra time on every move. STC 10+0.1 th 1 : LLR: 2.93 (-2.94,2.94) {-0.25,1.25} Total: 90688 W: 9702 L: 9436 D: 71550 Elo +1.02 Ptnml(0-2): 408, 7252, 29792, 7450, 442 https://tests.stockfishchess.org/tests/view/5f8df807bacb75a4f9a47223 LTC 60+0.6 th 1 : LLR: 2.97 (-2.94,2.94) {0.25,1.25} Total: 97856 W: 4602 L: 4303 D: 88951 Elo +1.06 Ptnml(0-2): 53, 3757, 41057, 3960, 101 https://tests.stockfishchess.org/tests/view/5f8ec4872c92c7fe3a8c602d Bench 3943959 Stockfish 20102220 and NNUE download