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5d1505d8c7475fed854e51512113aa8238b7dafd
stockfish/src
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Michael ChalyandJoost VandeVondele 5d1505d8c7 Reintroduce reduction term in LMR for cutnodes 
This term increases reduction for cutnodes without tt move, term was simplified away recently.

Passed STC:
https://tests.stockfishchess.org/tests/view/688882007b562f5f7b73262f
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 187616 W: 49367 L: 48824 D: 89425
Ptnml(0-2): 710, 21898, 48034, 22471, 695

Passed LTC:
https://tests.stockfishchess.org/tests/view/688c71f4502b34dd5e71139a
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 140280 W: 36280 L: 35750 D: 68250
Ptnml(0-2): 79, 15175, 39121, 15667, 98

closes https://github.com/official-stockfish/Stockfish/pull/6206

Bench: 2996732
2025-08-04 14:58:59 +02:00
..
incbin
Update Incbin Library
2024-12-22 15:16:01 +01:00
nnue
Optimize find_nnz() using VBMI2
2025-08-02 15:49:35 +02:00
syzygy
Do not change TB cursed wins to draws if requested
2025-01-25 20:42:50 +01:00
benchmark.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
benchmark.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
bitboard.cpp
Remove pawn_attacks_bb()
2025-04-02 17:39:40 +02:00
bitboard.h
Remove code that is not used anywhere
2025-08-02 16:21:41 +02:00
engine.cpp
Allow more than 1024 threads on high-end machines
2025-03-21 11:17:59 +01:00
engine.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
evaluate.cpp
Remove non-functional accumulator reset
2025-04-26 21:30:01 +02:00
evaluate.h
Various cleanups
2025-04-02 17:43:14 +02:00
history.h
Refactor: Simplify pawn structure indexing
2025-08-04 14:56:03 +02:00
main.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
Makefile
Fix icx profile-build
2025-08-04 14:53:49 +02:00
memory.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
memory.h
Remove unneeded return statement
2025-04-26 22:26:39 +02:00
misc.cpp
Speedup movegen with VBMI2
2025-07-24 10:08:35 +02:00
misc.h
Move SIMD code to a separate header
2025-05-25 20:52:57 +02:00
movegen.cpp
Speedup movegen with VBMI2
2025-07-24 10:08:35 +02:00
movegen.h
Speedup movegen with VBMI2
2025-07-24 10:08:35 +02:00
movepick.cpp
Refactor: Simplify pawn structure indexing
2025-08-04 14:56:03 +02:00
movepick.h
Speedup movegen with VBMI2
2025-07-24 10:08:35 +02:00
numa.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
perft.h
Remove unnecessary deque allocation in perft
2025-07-28 20:05:26 +02:00
position.cpp
Refactor Position::pseudo_legal Pawn Move Check
2025-05-19 07:12:11 +02:00
position.h
Simplify Position::pieces()
2025-06-02 21:28:18 +02:00
score.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
score.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
search.cpp
Reintroduce reduction term in LMR for cutnodes
2025-08-04 14:58:59 +02:00
search.h
Tweak the logic for setting the improving flag
2025-07-28 19:45:13 +02:00
thread_win32_osx.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
thread.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
thread.h
Update clang-format to v20
2025-05-23 08:54:06 +02:00
timeman.cpp
Simplify sudden death time optimization
2025-07-02 18:41:46 +02:00
timeman.h
Shrink Enum Sizes
2025-05-19 07:17:39 +02:00
tt.cpp
Introduce Secondary TT Aging
2025-06-02 21:55:55 +02:00
tt.h
Silence clang-format issue
2025-02-02 13:49:54 +01:00
tune.cpp
Disallow same option being added twice
2025-02-04 21:18:01 +01:00
tune.h
Prevent accidential misuse of TUNE()
2025-07-24 10:28:17 +02:00
types.h
Small tt verify simplification
2025-06-02 21:15:56 +02:00
uci.cpp
Display upper/lowerbound before wdl
2025-08-02 15:54:10 +02:00
uci.h
Shrink Enum Sizes
2025-05-19 07:17:39 +02:00
ucioption.cpp
Disallow same option being added twice
2025-02-04 21:18:01 +01:00
ucioption.h
Disallow same option being added twice
2025-02-04 21:18:01 +01:00