nnue-pytorch
Ethereal
nnue-pytorch | Ethereal | |
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14 | 2 | |
284 | 328 | |
3.9% | - | |
6.3 | 6.8 | |
5 days ago | 9 days ago | |
C++ | C | |
GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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nnue-pytorch
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Are Super-GMs far more cautious in opening choice than they were even ten years ago?
There's extremely detailed information on how Stockfish's neural network evaluation works, but none of this will tell you the why of why the engines' assessment changed: https://github.com/glinscott/nnue-pytorch/blob/master/docs/nnue.md
- Why are people using bitboards for chess input?
- Resources for learning and implementing a NNUE for a chess engine?
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I am the first author of Stockfish. Ask me anything.
If you want a readable explanation of all the details, this document is phenomenal.
- What's a simple engine to modify? (Preferably in Python)
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"RL Fine-Tuning: Scalable Online Planning via Reinforcement Learning Fine-Tuning", Fickinger et al 2021 {FB}
Getting SOTA in chess would be earth-shattering, especially since Stockfish has now adopted very light-weight NNs (called NNUE) and has doubled down on alpha-beta search, regaining the upper hand against A0 style programs.
- Where would an absolute beginner to neural networks start when trying to learn how to build a NNUE evaluation function?
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Stockfish 14 Released
Stockfish NNUE is deep network. You can find out more about it's architecture and internal working here:
https://github.com/glinscott/nnue-pytorch/blob/master/docs/n...
It's pretty interesting read.
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Official release version of Stockfish 14
[0] https://tests.stockfishchess.org/tests/view/60dae5363beab81350aca077 [1] https://nextchessmove.com/dev-builds [2] https://stockfishchess.org/blog/2021/stockfish-13/ [3] https://lczero.org/blog/2021/06/the-importance-of-open-data/ [4] https://github.com/official-stockfish/Stockfish/commit/e8d64af1 [5] https://github.com/glinscott/nnue-pytorch/ [6] https://stockfishchess.org/get-involved/
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How do Neural Networks work?
https://github.com/glinscott/nnue-pytorch/blob/master/docs/nnue.md There is some info there.
Ethereal
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Stockfish 15 Crash
Could you try Ethereal?
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What's a simple engine to modify? (Preferably in Python)
If you are open to programs in non-python, my recommendations would be to look into https://github.com/AndyGrant/Ethereal which is written in C, cleaner and easier to understand than SF, and not too much weaker.
What are some alternatives?
Ceres - Ceres - an MCTS chess engine for research and recreation
secondchess - secondchess is a chess engine by Emilio Díaz, based on firstchess by Pham Hong Nguyen
Stockfish - A free and strong UCI chess engine
lc0 - The rewritten engine, originally for tensorflow. Now all other backends have been ported here.
KataGo - GTP engine and self-play learning in Go
berserk - UCI Chess Engine written in C
irwin - irwin - the protector of lichess from all chess players villainous
Koivisto - UCI Chess engine
fishtest - The Stockfish testing framework
chessx - Sources of the official ChessX version.
ChessCounter - Estimate the number of legal chess positions