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Introduce dual NNUE evaluation#4910

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XInTheDark wants to merge 7 commits intoofficial-stockfish:masterofficial-stockfish/Stockfish:masterfrom XInTheDark:dualNNUE_1206_XInTheDark/Stockfish:dualNNUE_1206_Copy head branch name to clipboard

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Commits on Dec 5, 2023

• Dual net NNUE

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  mstembera

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  linrock

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• Smaller 256 net and fixed Makefile by @linrock

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  mstembera

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  linrock

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• Change EvalFileBig back to EvalFile to make fishtest happy

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  mstembera

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  linrock

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• hint big nnue below 2000 simple eval

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  linrock

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• big below 2200, add stochastic term

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  linrock

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• Try a search tune for dual NNUE.

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Commits on Dec 6, 2023

• v1: Tuned 44k games, use latest linrock smallnet.

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