NNUE search integration: FH% tables, NODE_TYPE refinement, TREEDUMP rewrite

2026-10-23T20:19:17Z

- data.c/chess.h: widen the joint FH% table's late axis 16->17, dedicating the new bucket 0 to a whole-node ("will something here fail high at all") sample rather than sharing it with the first-leftover-move curve. Add an NNUE-eval counterpart table (g_uJointFHThousandths_NNUE) and an NNUE counterpart of the beta-side table, selected at runtime based on whether NNUE eval is active. - search.c/searchsup.c: add _RefineNodeTypeGuess, which uses the FH% tables (via g_NodeTypeGuessTable) to refine a node's NODE_TYPE guess instead of the old heuristic; thread uParentMoveFHEstimate through PLY_INFO so a node can see its parent's prediction for the move that led to it. - generate.c: initialize sKillers[2]/[3].uBonus unconditionally (an uninitialized-stack read caught by valgrind under LTO; harmless today but a real bug). - dumptree.c/chess.h/GNUmakefile: replace the long-dead DUMP_TREE XML tree dump (written for a GUI this project no longer has) with TREEDUMP, a flat, path-keyed move/result trace meant to diff against an identically-instrumented Stockfish build -- see docs/TREEDUMP_FORMAT.md. - docs/DEEPER_PRUNING.md: notes on closing the search-efficiency gap vs Stockfish. - crafty_egtb/stockfish_xboard/typhoon_nnue: wrapper scripts so match_play.py's Engine class can drive Crafty, Stockfish (via PolyGlot), and an NNUE-enabled typhoon the same way it drives HCE typhoon. - tests/lop: rename lop.txt -> lop.ep_; update compare_lop.cpp. - annotate_pgns: add aggregate_marginsafety.py, dedup_pgn.py, fit_lazy_probe.py; update annotate.py/run_nnue_pipeline.py for the NNUE training pipeline. - .gitignore: ignore compile_commands.json (clangd build DB) and eval.nnue (a symlink into the untracked head_reference/ comparison baseline), neither of which belongs in the repo. Co-Authored-By: Claude Sonnet 5

typhoon.git/src/crafty_egtb, branch master

NNUE search integration: FH% tables, NODE_TYPE refinement, TREEDUMP rewrite