Mattia Giambirtone
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25677ae2c6
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Add improved NMP reduction scheme (20.1 +/- 14)
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2024-05-11 12:50:33 +02:00 |
Mattia Giambirtone
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9331729d76
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Add SEE to move ordering (gains 44.7 +/- 22.9)
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2024-05-11 11:25:45 +02:00 |
Mattia Giambirtone
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ca3f13ef04
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Fix movegen bug with king attacks, implement SEE and related tests (still not integrated)
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2024-05-11 09:43:58 +02:00 |
Mattia Giambirtone
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7c19d42638
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Initial work on standpat evaluation, move Qsearch TT probing into separate option. Initial work on LMP
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2024-05-10 15:26:06 +02:00 |
Mattia Giambirtone
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fc07d50ec1
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Initial work on SEE
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2024-05-10 15:12:59 +02:00 |
Mattia Giambirtone
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2f39e42448
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Apply minor fixes to FP (still untested)
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2024-05-10 14:29:47 +02:00 |
Mattia Giambirtone
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fdf71bbfce
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Add untested FP
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2024-05-10 13:25:55 +02:00 |
Mattia Giambirtone
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9b049cdcec
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Implement RFP (elo gains 41.5 +/- 21.9)
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2024-05-10 13:16:12 +02:00 |
Mattia Giambirtone
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b9fbb9eb3f
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Implement null move pruning (+34.5 +/- 19.6), minor changes and fixes
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2024-05-10 11:21:57 +02:00 |
Mattia Giambirtone
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887e2a64a3
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WIP refactoring for aspiration window, minor other changes
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2024-05-09 15:45:39 +02:00 |
Mattia Giambirtone
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e0914e2eb5
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Refactor move ordering, implement killer moves, probe TT in qsearch, initial work on aspiration windows
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2024-05-09 10:15:00 +02:00 |
Mattia Giambirtone
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9ffa7f6ea6
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Fix searches with time per move, preliminary work on eval improvements, minor changes and fixes
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2024-05-07 13:40:48 +02:00 |
Mattia Giambirtone
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d9f16c5ceb
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Fix LMR threshold
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2024-05-07 00:34:24 +02:00 |
Mattia Giambirtone
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7292356948
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Fix crashing, implement LMR and tempo bonus
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2024-05-06 23:48:40 +02:00 |
Mattia Giambirtone
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2a1f020edd
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Fix bugs with LMR (needs testing). Move to ptrs. General refactoring
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2024-05-06 00:34:06 +02:00 |
Mattia Giambirtone
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245a5d75e8
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Initial work on killer moves. Add soft tm (gains 41.8 +/- 22.0)
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2024-05-05 16:07:37 +02:00 |
Mattia Giambirtone
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651acd26ed
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Implement history euristic (gain: 73.1 +/- 30.2)
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2024-05-05 13:37:33 +02:00 |
Mattia Giambirtone
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0695fff442
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Refactor code to eliminate refs shared across thread boundaries
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2024-05-04 20:30:26 +02:00 |
Mattia Giambirtone
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98668ae66e
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Check extensions (gain 89.5 +/- 34.0) and initial work on draw by insufficient material detection
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2024-05-03 17:10:18 +02:00 |
Mattia Giambirtone
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d5f3071733
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Remove useTT compile time flag
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2024-05-02 19:08:30 +02:00 |
Mattia Giambirtone
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5100bc744c
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Fix TT: Gains 83.0 +/- 32.5 elo
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2024-05-02 19:07:20 +02:00 |
Mattia Giambirtone
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9a41ba50ff
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Uncomment tt cutoff code
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2024-05-02 15:41:30 +02:00 |
Mattia Giambirtone
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316a63303c
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Fix incremental zobrist hashing, fix repetition detection, add ttmove, wait for search thread to complete
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2024-05-02 14:39:46 +02:00 |
Mattia Giambirtone
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fe453aa3fd
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Hopefully fix crashing issues
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2024-05-02 00:24:57 +02:00 |
Mattia Giambirtone
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fe7e64e9c3
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Refactor chessboard code and move most logic to Position
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2024-05-01 19:46:28 +02:00 |
Mattia Giambirtone
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4cb994a3a6
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Minor tweaks
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2024-05-01 18:10:38 +02:00 |
Mattia Giambirtone
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2de3f64562
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Move the mailbox into the position object and get rid of update(). Minor UI tweaks
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2024-05-01 18:02:17 +02:00 |
Mattia Giambirtone
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e6dd6fcf4c
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Minor refactoring and cleanup. Switch away from boehm GC as that's too slow
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2024-05-01 16:54:08 +02:00 |
Mattia Giambirtone
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b865ece113
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Pregenerate pawn attacks (currently unused). Attempts at fixing random crashing
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2024-05-01 16:30:21 +02:00 |
Mattia Giambirtone
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d3170ab03a
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Hide untested options behind when defined(), increase size of some position counters, tweak MVVLVA multiplier and more fixes
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2024-04-28 16:17:30 +02:00 |
Mattia Giambirtone
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679965c438
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Remove unnecessary modules and refactor some things. WIP on testing broken Zobrist hashing
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2024-04-27 15:00:03 +02:00 |
Mattia Giambirtone
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28b9a262cc
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Add specialized .gitignore
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2024-04-27 11:12:13 +02:00 |
Mattia Giambirtone
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e442d832e7
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Bug fixes. Implement quiescent search, extensions and LMR. Needs SPRT
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2024-04-27 09:49:45 +02:00 |
Mattia Giambirtone
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19f2c7ab58
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Fix some bugs in movegen. Untested TT
Signed-off-by: Mattia Giambirtone <nocturn9x@nocturn9x.space>
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2024-04-26 11:41:59 +02:00 |
Mattia Giambirtone
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d47040feed
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Initial work on transposition table and repetition detection
Signed-off-by: Mattia Giambirtone <nocturn9x@nocturn9x.space>
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2024-04-25 23:41:25 +02:00 |
Mattia Giambirtone
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7d6cc98614
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Initial TT work
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2024-04-25 20:04:26 +02:00 |
Mattia Giambirtone
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1aa37d8af8
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Initial work on Zobrist hashing. Add Pohl opening book
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2024-04-25 18:53:51 +02:00 |
Mattia Giambirtone
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40b47053c1
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Massive eval improvement. Perform search in a separate thread. Implement more UCI commands
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2024-04-25 15:20:55 +02:00 |
Mattia Giambirtone
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a94d9ae1f0
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Initial work on search and eval
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2024-04-24 19:38:54 +02:00 |
Mattia Giambirtone
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51ef1ff9db
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More UCI ground work
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2024-04-24 12:38:03 +02:00 |
Mattia Giambirtone
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b4d2c5cbef
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Add heavy tests. Fix minor bugs. Initial work on UCI interface
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2024-04-24 10:41:01 +02:00 |
Mattia Giambirtone
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9ffe08400d
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Minor (hopefully last) movegen bugfix
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2024-04-23 20:42:57 +02:00 |
Mattia Giambirtone
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b80f71c1cb
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Minor fixups. Require nim 2.0.4 or higher to build
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2024-04-23 20:17:07 +02:00 |
Mattia Giambirtone
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fe34788817
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Merge branch 'master' into performance
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2024-04-23 18:58:54 +02:00 |
Mattia Giambirtone
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bc9ff4c3ed
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Final bug fixes. Test suite is passing
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2024-04-23 18:57:38 +02:00 |
Mattia Giambirtone
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46142496ec
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More movegen bug fixes and minor improvements to the test suite
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2024-04-23 11:48:11 +02:00 |
Mattia Giambirtone
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e42c1fd95d
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Make test suite optionally parallel. Many bug fixes
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2024-04-23 01:50:56 +02:00 |
Mattia Giambirtone
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fbb21f19d1
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Add nim.cfg and various bugfixes to movegen
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2024-04-21 15:58:31 +02:00 |
Mattia Giambirtone
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9b3264b68b
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Add missing license headers
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2024-04-21 11:11:28 +02:00 |
Mattia Giambirtone
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bb9eea4ef8
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Add missing license headers
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2024-04-21 11:09:12 +02:00 |