EightChess-Team/eightchess-networks

8Chess NNUE Networks

Trained NNUE networks for the 8Chess engine (1024-wide threat + piece features, 10 input / 8 output buckets).

The champion network embedded in release v1.0.10 is eightchess_1024_tuned768.nnue.

Files

Network	Size	Notes
eightchess_1024_tuned768.nnue	80.4 MiB	Champion — embedded in v1.0.10 (67.75% vs Stockfish 19, +129 Elo)
eightchess_1024_tuned_exact.nnue	80.4 MiB	Tuned variant, exact export
eightchess_1024_master.nnue	80.4 MiB	Master 1024-wide network
eightchess_1024_lc0_best.nnue	80.4 MiB	Lc0-distilled best
eightchess_1024_gold_master.nnue	80.4 MiB	Gold training stage
eightchess_1024_beast_master.nnue	80.4 MiB	Beast training stage
eightchess_1024_base_master.nnue	80.4 MiB	Base stage
eightchess_1024_base.nnue	80.4 MiB	Base network
eightchess_1024_residual_init.nnue	80.4 MiB	Residual init
eightchess_tuned_master.nnue	60.3 MiB	768-wide tuned
eightchess_lc0_best.nnue	60.3 MiB	768-wide Lc0 best
eightchess_gold_master.nnue	60.3 MiB	768-wide gold
eightchess_beast_master.nnue	60.3 MiB	768-wide beast
eightchess_d9_master.nnue	60.3 MiB	D9 run
base_master.nnue	60.3 MiB	Legacy base network

Usage

# embedded in the binary by default; or override at runtime:
setoption name EvalFile value /path/to/eightchess_1024_tuned768.nnue

These files are identical to the copies used for training in Reckless/networks/ — de-duplicated by SHA-256.

License

AGPL-3.0, same as the engine. See the 8Chess repository.