The code for last capture extension can be removed in current master.
Passed STC
LLR: 2.95 (-2.94,2.94) {-1.00,0.20}
Total: 85024 W: 7754 L: 7707 D: 69563
Ptnml(0-2): 293, 5991, 29914, 6004, 310
https://tests.stockfishchess.org/tests/view/
607690f1814175337896068f
Passed LTC
LLR: 2.96 (-2.94,2.94) {-0.70,0.20}
Total: 39880 W: 1503 L: 1453 D: 36924
Ptnml(0-2): 17, 1281, 17293, 1333, 16
https://tests.stockfishchess.org/tests/view/
6076ccbe814175337896069e
Closes https://github.com/official-stockfish/Stockfish/pull/3430
Bench:
4202264
&& (pos.is_discovered_check_on_king(~us, move) || pos.see_ge(move)))
extension = 1;
- // Last captures extension
- else if ( PieceValue[EG][pos.captured_piece()] > PawnValueEg
- && pos.non_pawn_material() <= 2 * RookValueMg)
- extension = 1;
-
// Add extension to new depth
newDepth += extension;