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Stockfish/src
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Michael Chaly 9cc15b3049 Do more reductions for cut nodes without a tt move 
Logic is somewhat similar to IIR but in LMR.
Usually things like reducing more in IIR scale badly but this patch does
this in LMR where reducing more for cutNodes is in general good, so I
believe there is no non-linear scaling.

Passed STC:
https://tests.stockfishchess.org/tests/view/67abc9aaa04df5eb8dbeb452
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 42304 W: 11223 L: 10892 D: 20189
Ptnml(0-2): 184, 4904, 10669, 5187, 208

Passed LTC:
https://tests.stockfishchess.org/tests/view/67abcd7ba04df5eb8dbeb96c
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 32334 W: 8386 L: 8074 D: 15874
Ptnml(0-2): 26, 3446, 8916, 3748, 31

closes https://github.com/official-stockfish/Stockfish/pull/5875

Bench: 2612849
2025-02-13 19:49:54 +01:00
..
incbin
Update Incbin Library
2024-12-22 15:16:01 +01:00
nnue
Clean up pack reordering
2025-01-25 20:17:39 +01:00
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
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2025-01-06 00:45:28 +01:00
bitboard.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
bitboard.h
Fix undefined behavior
2025-01-25 20:33:43 +01:00
engine.cpp
Disallow same option being added twice
2025-02-04 21:18:01 +01:00
engine.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
evaluate.cpp
Use same pawn value in both nets when doing material scaling of eval
2025-01-12 21:09:58 +01:00
evaluate.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
history.h
Tweak correction history factors
2025-02-02 13:43:32 +01:00
main.cpp
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2025-01-06 00:45:28 +01:00
Makefile
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2025-01-06 00:45:28 +01:00
memory.cpp
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2025-01-06 00:45:28 +01:00
memory.h
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2025-01-06 00:45:28 +01:00
misc.cpp
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2025-01-06 00:45:28 +01:00
misc.h
Fix undefined behavior
2025-01-25 20:33:43 +01:00
movegen.cpp
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2025-01-06 00:45:28 +01:00
movegen.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
movepick.cpp
Introduce one more continuation history
2025-01-18 21:04:55 +01:00
movepick.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
numa.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
perft.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
position.cpp
Remove two xors by setting the hash keys for unreachable squares to zero
2025-02-13 19:44:53 +01:00
position.h
Remove major corrhist
2025-01-26 22:41:00 +01:00
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
Do more reductions for cut nodes without a tt move
2025-02-13 19:49:54 +01:00
search.h
Remove major corrhist
2025-01-26 22:41:00 +01:00
thread_win32_osx.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
thread.cpp
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2025-01-06 00:45:28 +01:00
thread.h
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2025-01-06 00:45:28 +01:00
timeman.cpp
Comments Tweak
2025-01-25 20:29:40 +01:00
timeman.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
tt.cpp
Fix initialization of TTData.
2025-01-18 20:23:10 +01:00
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
Update Copyright Year
2025-01-06 00:45:28 +01:00
types.h
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2025-01-06 00:45:28 +01:00
uci.cpp
Update Copyright Year
2025-01-06 00:45:28 +01:00
uci.h
Update Copyright Year
2025-01-06 00:45:28 +01:00
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