Changes

Being tempted by the success of [[Stockfish NNUE]] and attracted by how easy the method and small the code is, many engine developers have started testing and applying [[NNUE]]. For quick trials and evaluating before going into serious development, some of them borrowed and/or rewrote NNUE code and use networks from Stockfish NNUE. Most of them reported positive results, such as [[David Carteau]] with [[Orion]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74828 Orion 0.7 : NNUE experiment] by [[David Carteau]], [[CCC]], August 19, 2020</ref>, [[Ehsan Rashid]] with [[DON]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72613&start=320#p856640 Re: New engine releases 2020...Don NNUE 2020?] by supersharp77, [[CCC]], August 19, 2020</ref>, various [[Stockfish#Derivatives|Stockfish derivatives]] by [[Michael Byrne]] <ref>[http://talkchess.com/forum3/viewtopic.php?f=2&t=74825 ... the last shall be first ...] by [[Michael Byrne|MikeB]], [[CCC]], 19 Aug 2020</ref>, and [[Volodymyr Shcherbyna]] with [[Igel]] <ref>[http://talkchess.com/forum3/viewtopic.php?f=2&t=67890&start=10#p856742 Introducing Igel chess engine] by [[Volodymyr Shcherbyna]], [[CCC]], 20 Aug 2020</ref> using the ''Night Nurse'' NNUE net by [[Dietrich Kappe]] <ref>[http://talkchess.com/forum3/viewtopic.php?f=2&t=74837 Night Nurse 0.2] by [[Dietrich Kappe]], [[CCC]], August 19, 2020</ref>. [[Daniel Shawul]] added NNUE support à la [[CFish]] into his [[Scorpio#Bitbases|egbbdll]] probing library of [[Scorpio]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75400&start=22 Re: Hacking around CFish NNUE] by [[Daniel Shawul]], [[CCC]], October 15, 2020</ref> <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75415&start=3 Re: How to scale stockfish NNUE score?] by [[Daniel Shawul]], [[CCC]], October 17, 2020</ref>, making it even easier to use NNUE. The promising engines [[Halogen]] 7 and 8 by [[Kieren Pearson]], and [[Seer]] by [[Connor McMonigle]] came with their own, distinct NNUE implementations, and on November 10, 2020, the commercial [[Dragon by Komodo Chess]] aka [[Komodo]] NNUE appeared <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75748 Dragon by Komodo Chess] by [[Larry Kaufman]], [[CCC]], November 10, 2020</ref>, trying to close the gap to Stockfish NNUE. The commercial [[Fat Fritz#Fat Fritz 2|Fat Fritz 2.0]], based on a slightly modified Stockfish 12 using a customized, double sized network, was released by [[ChessBase]] in February 2021.

* [[Yu Nasu]] ('''2018'''). ''&#398;U&#1048;&#1048; Efficiently Updatable Neural-Network based Evaluation Functions for Computer Shogi''. Ziosoft Computer Shogi Club, [https://github.com/ynasu87/nnue/blob/master/docs/nnue.pdf pdf], [https://www.apply.computer-shogi.org/wcsc28/appeal/the_end_of_genesis_T.N.K.evolution_turbo_type_D/nnue.pdf pdf] (Japanese with English abstract)[https://github.com/asdfjkl/nnue GitHub - asdfjkl/nnue translation] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76250 Translation of Yu Nasu's NNUE paper] by [[Dominik Klein]], [[CCC]], January 07, 2021</ref>

==2020 =====January ...===

* <span id="Training"></span>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75724 Pytorch NNUE training] by [[Gary Linscott]], [[CCC]], November 08, 2020 <ref>[https://en.wikipedia.org/wiki/PyTorch PyTorch from Wikipedia]</ref>

* [https://github.com/davidDanielUranga/TensorFlowNNUE GitHub - DanielUranga/TensorFlowNNUE] by [[Daniel Uranga]]* [https://github.com/glinscott/nnue-pytorch GitHub - glinscott/nnue-carteaupytorch: NNUE (Chess evaluation) trainer in Pytorch] by [[Gary Linscott]] * [https://github.com/cerebrum connormcmonigle/seer-nnue GitHub - davidconnormcmonigle/seer-nnue: UCI chess engine using neural networks for position evaluation] by [[Connor McMonigle]] » [[Seer]]* [https://github.com/bmdanielsson/nnue-trainer GitHub - bmdanielsson/nnue-trainer: PyTorch trainer for NNUE style neural networks] by [[Martin Danielsson]] » [[Marvin]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=76964 nnue-trainer] by [[Jon Dart]], [[CCC]], March 27, 2021</ref>* [https://github.com/fsmosca/Mabigat GitHub -carteaufsmosca/cerebrumMabigat: The Cerebrum libraryNNUE parameter optimizer] by [[David CarteauFerdinand Mosca]] » [[CerebrumAutomated Tuning]]