Shawn Xu d275bf9643 Introduce Fail Low History Bonus ...

When a node fails low, give TT move a small bonus 1/4 of normal value.

Passed STC:
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 92384 W: 24094 L: 23691 D: 44599
Ptnml(0-2): 323, 10852, 23465, 11203, 349
https://tests.stockfishchess.org/tests/view/66be80794ff211be9d4eed68

Passed LTC:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 114660 W: 29260 L: 28778 D: 56622
Ptnml(0-2): 97, 12506, 31653, 12966, 108
https://tests.stockfishchess.org/tests/view/66bf63ee4ff211be9d4eeef0

closes https://github.com/official-stockfish/Stockfish/pull/5539

bench 1463003

2024-08-20 21:34:19 +02:00

..

incbin

Cleanup comments

2023-12-31 19:54:27 +01:00

nnue

Improve Comments for Pairwise Multiplication Optimization

2024-08-20 20:47:46 +02:00

syzygy

Fixed non UCI compliance

2024-07-15 13:14:57 +02:00

benchmark.cpp

Restore NPS output for Perft

2024-04-24 18:20:55 +02:00

benchmark.h

Restore NPS output for Perft

2024-04-24 18:20:55 +02:00

bitboard.cpp

Early Exit in Bitboards::sliding_attack()

2024-05-18 09:24:23 +02:00

bitboard.h

Assorted cleanups

2024-02-11 19:52:00 +01:00

engine.cpp

Replicate network weights only to used NUMA nodes

2024-08-03 09:41:37 +02:00

engine.h

Replicate network weights only to used NUMA nodes

2024-08-03 09:41:37 +02:00

evaluate.cpp

Replace simple eval with psqt in re-eval condition

2024-07-23 19:24:00 +02:00

evaluate.h

Update default main net to nn-1111cefa1111.nnue

2024-08-20 20:59:36 +02:00

main.cpp

Transform search output to engine callbacks

2024-04-05 21:03:58 +02:00

Makefile

Change PGO type for clang

2024-06-08 23:05:56 +02:00

memory.cpp

Clean up comments in code

2024-07-11 07:29:33 +02:00

memory.h

Clean up comments in code

2024-07-11 07:29:33 +02:00

misc.cpp

Clean up comments in code

2024-07-11 07:29:33 +02:00

misc.h

Non-functional Fixes & Updates

2024-07-06 17:56:31 +02:00

movegen.cpp

Remove QS_CHECKS movepick stage

2024-07-23 17:56:52 +02:00

movegen.h

Remove QS_CHECKS movepick stage

2024-07-23 17:56:52 +02:00

movepick.cpp

Clean up comments for movepicker

2024-07-28 22:21:03 +02:00

movepick.h

Clean up comments for movepicker

2024-07-28 22:21:03 +02:00

numa.h

Replicate network weights only to used NUMA nodes

2024-08-03 09:41:37 +02:00

perft.h

Restore NPS output for Perft

2024-04-24 18:20:55 +02:00

position.cpp

Limit has_game_cycle() to only upcoming repetition

2024-07-03 13:35:49 +02:00

position.h

Clean up comments in code

2024-07-11 07:29:33 +02:00

score.cpp

Fix wrong sign for 200 TB score

2024-04-13 22:05:19 +02:00

score.h

Fix wrong sign for 200 TB score

2024-04-13 22:05:19 +02:00

search.cpp

Introduce Fail Low History Bonus

2024-08-20 21:34:19 +02:00

search.h

Replicate network weights only to used NUMA nodes

2024-08-03 09:41:37 +02:00

thread_win32_osx.h

Refactor NativeThread start_routine

2024-01-21 12:21:01 +01:00

thread.cpp

Replicate network weights only to used NUMA nodes

2024-08-03 09:41:37 +02:00

thread.h

Replicate network weights only to used NUMA nodes

2024-08-03 09:41:37 +02:00

timeman.cpp

Simplify tm, removing faster 1st move and 1.13 extraTime.

2024-06-01 20:12:36 +02:00

timeman.h

Simplify tm, removing faster 1st move and 1.13 extraTime.

2024-06-01 20:12:36 +02:00

tt.cpp

Simplify away a useless TTEntry::read()

2024-07-01 19:50:32 +02:00

tt.h

Simplify TT interface and avoid changing TT info

2024-06-12 09:17:04 +02:00

tune.cpp

Move options into the engine

2024-06-12 09:17:04 +02:00

tune.h

Move options into the engine

2024-06-12 09:17:04 +02:00

types.h

Remove QS_CHECKS movepick stage

2024-07-23 17:56:52 +02:00

uci.cpp

Move info strings once more

2024-07-03 13:39:31 +02:00

uci.h

Fix printing of empty info strings.

2024-06-15 12:04:16 +02:00

ucioption.cpp

Fixed non UCI compliance

2024-07-15 13:14:57 +02:00

ucioption.h

Move options into the engine

2024-06-12 09:17:04 +02:00