Chess Engines Diary

Sting sf  - UCI chess engines (based on Stockfish) Previous version chess engine Sting sf   Author -  Marek Kwiatkowski Rating JCER=3040 Sting sf7.3 download All files (games, tables and engines) - download from page

Previous version chess engine Shark   JCER=3301 Shark 160831bf download All files (games, tables and engines) -  download from page

Crochess  wins JCER Amateur League G, edition 02/2016, 2016.10.26 - 2016.10.31 CroChess  - download

asmFish 2016.08.30 - download All files (games, tables and engines) -  download from page

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Author compilation -    Stefan Geschwentner  Information on the compilation: Timestamp: 1472501703  Tweak probcut threshold  Use better threshold for capture move generation.  STC:  LLR: 2.96 (-2.94,2.94) [0.00,5.00]  Total: 23265 W: 4415 L: 4188 D: 14662  LTC:  LLR: 2.95 (-2.94,2.94) [0.00,4.00]  Total: 36618 W: 5083 L: 4836 D: 26699  bench: 7030088  Stockfish 16082922  - download

Temp 3' + 3" Hardware: Intel Core i3-3217U CPU @ 1.80GHz with 3,9 GB Memory , Windows 10 64-bit 612 tournament games download , GUI- Arena 3.5.1 ,   134.382 JCER games download ,   Book:  Perfect 2015 , Table created -  Scid vs PC 

Stockfish - 2014 compilations (57 files) - download

66 engines the letter T(2)   Thorshammer 229,  Tigran 24n, T ikov, T imea-4a18,  Tinapa1.01,  Tippy Chess 2010a,  TJchess 1.1,  Toga II 280513,  Toga Returns 1.0,  Toga Returns 1.1,  TogaII 20SE,  toga-30,  toga-II-20,  Toltec, T oltec 2,  Tommy2.45b,  TonysChess002,  Tornado 4.88,  TornadoChess 150504,  TornadoChess 5,  TornadoChess 6,  Tossa,  Trace,  trappybeowulf rev11,  Trex,  tscp-181e,  tscp-rebel.  ttychess,  tucano.100,  tucano.104,  tucano.400,  Tucano.5.0,  tucano.600,  tucano2.0,  tucano300,  tunable_rodent,  tursas-02,  TuxedoCat.0.0.1,  twisted20100131x,  TWISTEDLOGIC 0.15,  TWISTEDLOGIC 0.16,  TWISTEDLOGIC 0.17,  TWISTEDLOGIC 0.20,  TwistedLogic 0.25,  TWISTEDLOGIC 0.37o,  TWISTEDLOGIC 0.37z1,  TWISTEDLOGIC 0.45g,  TWISTEDLOGIC 0.45g5,  TWIS...

Temp 3' + 3" Hardware: Intel Core i7-4710MQ CPU @ 2.50GHz with 7,9 GB Memory , Windows 10 64-bit 612 tournament games download, GUI-Fritz 12,  134.382 JCER games download ,  Book: Perfect 2015 , Table created - Scid vs PC All files (games, tables and engines) - download from page

Fizbo  - UCI chess engine Fizbo - homepage JCER=3010 Author -  Youri Matiounine Fizbo 1.8 download All files (games, tables and engines) - download from page

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Authors -    Marco Costalba (x3), Hixm, Gamander, Stephane Nicolet, Alain Savard, Andrew Grant. Information on the compilation: Stockfish 2016.08.27-28 (8 versions)  - download

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Author compilation -    Marco Costalba Information on the compilation: Timestamp: 1472111510  Reformat stats update  Rewritten in a way to have explicit in the search  the bonus/penalty we apply: hopefully this will lead  to further simplification/fix of current rather messy  stats update code.  No functional change.    Stockfish 16082509  - download

Ethereal - UCI chess engine Author - Andy Grant About: Ethereal is a UCI-compliant chess engine. It uses the traditional alpha-beta framework in addition to a variety of pruning, reduction, extension, and other improvements. Some of those improvements include Static Null Move Pruning, Null Move Pruning, Node Razoring, Depth base Futility Pruning, Best-Case Delta Pruning, Current-Move Delta Pruning, Late Move Reductions, Check extensions, and the use of various Transposition Tables. Ethereal generates moves using the Fancy Magic BitBoard technique, but also uses a redundant 64-length array to store pieces for easier lookup.  Ethereal is an original engine aside from the Piece Square Tables (currently using Toga II's tables). It is greatly influenced from Crafty, Stockfish, TSCP, MadChess, and Fruit. Ethereal is a hobby project, but more importantly it is an active resume. Ethereal rev 7.76 - download All files (games, tables and engines) - download from page

Ippos  - UCI chess engine (based on Ippolit 0.80) All files (games, tables and engines) -  download from page Ippos 1.20 - download

Temp 3' + 3" Hardware: Intel Core i3-3217U CPU @ 1.80GHz with 3,9 GB Memory , Windows 10 64-bit 612 tournament games download, GUI- Arena 3.5.1 ,  134.382 JCER games download ,  Book: Perfect 2015 , Table created - Scid vs PC  All files (games, tables and engines) -  download from page

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Author compilation -    VoyagerOne Information on the compilation: Timestamp: 1472019992  Refutation penalty on captures  Apply refutation penalty for prior PV quiet move on captures  LTC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 8208 W: 1153 L: 1008 D: 6047  http://tests.stockfishchess.org/tests/view/57bc5a9f0ebc59030fbe47b5  Only LTC because a very similar patch already passed STC + LTC  bench: 7038730  Stockfish 16082408  - download

Floyd  - UCI chess engine ( for Windows, Linux and Mac). Homepage Rating JCER=2380 Author- Marcel van Kervinck   Version 0.9: m ain changes: Gained approximately 180 elo at fast time controls Better handling of zugzwang positions Fixed illegal moves deep in PV (reported by Dirk-Jan D.) Full solution for the "0readyok" problem: also don't split info lines Able to abort search in Python module (e.g. by Ctrl-C)  Under the hood: Added history counters for move ordering Improved move ordering for killers Improved null move pruning/reductions (aka verification) Added delta pruning Added hanging piece evaluation Added basic futility pruning, razoring and stand pat pruning Some minor evaluation weight tuning Simplified UCI move printing Eliminated spurious "Illegal move" in debug mode  Floyd 0.9 - download All files (games, tables and engines) - download from page

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Author compilation -    VoyagerOne Information on the compilation: Timestamp: 1471589958  Simplify IID  STC:  LLR: 2.96 (-2.94,2.94) [-3.00,1.00]  Total: 30468 W: 5687 L: 5582 D: 19199  http://tests.stockfishchess.org/tests/view/57b1ddd80ebc591c761f63e2  LTC:  LLR: 2.95 (-2.94,2.94) [-3.00,1.00]  Total: 87406 W: 11756 L: 11725 D: 63925  http://tests.stockfishchess.org/tests/view/57b212590ebc591c761f63f9  bench: 6554900  Stockfish 16081908_b  - download

Sayuri  - UCI chess engine Author - Hironori Ishibashi         Sayuri previous versions JCER=1718 Sayuri 2016.08.20 download All files (games, tables and engines) - download from page

Temp 3' + 3" Hardware: Intel Core i7-4710MQ CPU @ 2.50GHz with 7,9 GB Memory , Windows 10 64-bit 612 tournament games download , GUI- Arena 3.5.1 ,  134.382 JCER games download ,  Book: Perfect 2015 , Table created - Scid vs PC 

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Author compilation -    VoyagerOne Information on the compilation: Timestamp: 1471589414  Do LMR on captures  STC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 5361 W: 1086 L: 936 D: 3339  http://tests.stockfishchess.org/tests/view/57b31b0f0ebc591c761f643d  LTC:  LLR: 2.96 (-2.94,2.94) [0.00,5.00]  Total: 54694 W: 7591 L: 7287 D: 39816  http://tests.stockfishchess.org/tests/view/57b3442b0ebc591c761f6450  bench: 6881120  Stockfish 16081908  - download

pedantFish 2016.08.12 and 2016.08.20 - download All files (games, tables and engines) - download from page

Stockfish  - chess engines UCI Previous version chess engine Stockfish   Author compilation -    Marco Costalba Information on the compilation: Timestamp: 1471509656  Remove a stale assignment  No more used after previous patch.  Spotted by Jekaa .  No functional change.  Stockfish 16081810_costalba  - download