mirror of
https://github.com/sockspls/badfish
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1db969e620
This reduces the futiltiy_margin if our opponents last move was bad by around ~1/3 when not improving and ~1/2.7 when improving, the idea being to retroactively futility prune moves that were played, but turned out to be bad. A bad move is being defined as their staticEval before their move being lower as our staticEval now is. If the depth is 2 and we are improving the opponent worsening flag is not set, in order to not risk having a too low futility_margin, due to the fact that when these conditions are met the futility_margin already drops quite low. Passed STC: https://tests.stockfishchess.org/tests/live_elo/65e3977bf2ef6c733362aae3 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 122432 W: 31884 L: 31436 D: 59112 Ptnml(0-2): 467, 14404, 31035, 14834, 476 Passed LTC: https://tests.stockfishchess.org/tests/live_elo/65e47f40f2ef6c733362b6d2 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 421692 W: 106572 L: 105452 D: 209668 Ptnml(0-2): 216, 47217, 114865, 48327, 221 closes https://github.com/official-stockfish/Stockfish/pull/5092 Bench: 1565939 |
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| .. | ||
| incbin | ||
| nnue | ||
| syzygy | ||
| benchmark.cpp | ||
| benchmark.h | ||
| bitboard.cpp | ||
| bitboard.h | ||
| evaluate.cpp | ||
| evaluate.h | ||
| main.cpp | ||
| Makefile | ||
| misc.cpp | ||
| misc.h | ||
| movegen.cpp | ||
| movegen.h | ||
| movepick.cpp | ||
| movepick.h | ||
| perft.h | ||
| position.cpp | ||
| position.h | ||
| search.cpp | ||
| search.h | ||
| thread.cpp | ||
| thread.h | ||
| thread_win32_osx.h | ||
| timeman.cpp | ||
| timeman.h | ||
| tt.cpp | ||
| tt.h | ||
| tune.cpp | ||
| tune.h | ||
| types.h | ||
| uci.cpp | ||
| uci.h | ||
| ucioption.cpp | ||
| ucioption.h | ||