]>
git.sesse.net Git - stockfish/log
Marco Costalba [Tue, 17 May 2011 10:09:45 +0000 (12:09 +0200)]
Retire Position::see(Square from, Square to) overload
Alomst unuseful.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 17 May 2011 09:47:52 +0000 (11:47 +0200)]
Prefer an assert to a comment in position.h
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 17 May 2011 07:09:26 +0000 (09:09 +0200)]
Let 'make' with no arguments to show compilation options
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 16 May 2011 08:59:51 +0000 (10:59 +0200)]
Prefer ttMove to tte->move() in search()
Avoids aliasing problems due to TT overwrites.
Node changes becuase of IID.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 8 May 2011 09:40:30 +0000 (10:40 +0100)]
Use standard naming conventions in book.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 8 May 2011 08:12:28 +0000 (09:12 +0100)]
Reintroduce operator>>() in Book class
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 8 May 2011 08:01:41 +0000 (09:01 +0100)]
Restore development version
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 8 May 2011 07:46:33 +0000 (08:46 +0100)]
Stockfish 2.1.1
stockfish bench signature is:
6487630
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 7 May 2011 09:08:53 +0000 (10:08 +0100)]
Spell fix in evaluate.cpp
Spotted by Eelco.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 7 May 2011 08:03:59 +0000 (09:03 +0100)]
Fix reading of book file
Bug is subtle because appears only under MSVC 32 bits in
optimized version, hence was missed before.
Bug is due to the fact that evaluation order of terms of a
sum is undefined by the standard, so in get_int() we have:
return 256 * get_int<n-1>() + bookFile.get();
And if get() is evaluated before get_int() we have a corrupted
key.
The patch rewrites the code in a more natural and predictable way.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 5 May 2011 09:55:28 +0000 (11:55 +0200)]
Remove redundant assignment in search()
It is already assigned few lines before.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 5 May 2011 05:35:42 +0000 (06:35 +0100)]
Restore development version
No functional change.
Marco Costalba [Tue, 3 May 2011 18:29:21 +0000 (19:29 +0100)]
Fix a warning in debug mode
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 3 May 2011 08:00:10 +0000 (10:00 +0200)]
Stockfish 2.1
stockfish bench signature is:
6487630
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 3 May 2011 07:54:22 +0000 (09:54 +0200)]
Reintroduce permanent PV entries in TT
We are now ready to release so restore this
improvment before 2.1
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 3 May 2011 07:24:51 +0000 (09:24 +0200)]
Update Readme.txt to 32 threads and bsfq on Windows
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 30 Apr 2011 12:02:56 +0000 (13:02 +0100)]
Fix bug in evaluate_passed_pawns()
If blockSq is already on rank 8, blockSq + pawn_push(Us) is on rank 9,
outside of board. It does not make sense to measure king distance to
a field outside the board.
Bug spotted by Fruity:
http://open-chess.org/viewtopic.php?f=5&t=1156&start=10
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 2 May 2011 12:15:06 +0000 (14:15 +0200)]
Retire "Pawn Structure" UCI option
Almost useless for the user and now is in sync with
the material value that is already weighted.
A small speedup of 0,4% because we avoid an apply_weight()
call in a fast path.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 2 May 2011 07:43:16 +0000 (09:43 +0200)]
Rename stuff in evaluate.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 1 May 2011 10:00:19 +0000 (11:00 +0100)]
Additional tweaks in evaluate_unstoppable_pawns()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 1 May 2011 09:31:27 +0000 (10:31 +0100)]
Remove redundancy in evaluate_unstoppable_pawns()
Spotted by Fruity
http://open-chess.org/viewtopic.php?f=5&t=1156&start=20
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 1 May 2011 06:11:58 +0000 (07:11 +0100)]
Small reformat in evaluate_unstoppable_pawns()
Also simplify tracing because evaluate_unstoppable_pawns()
return always zero if both colors have non pawn material.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 1 May 2011 06:49:40 +0000 (07:49 +0100)]
Update polyglot.ini
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 29 Apr 2011 14:26:48 +0000 (16:26 +0200)]
Rename check related functions
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 29 Apr 2011 08:07:23 +0000 (10:07 +0200)]
Small renaming in thread.cpp
To better self document the code.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 29 Apr 2011 07:18:54 +0000 (09:18 +0200)]
Rename Option in UCIOPtion
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 28 Apr 2011 07:00:10 +0000 (08:00 +0100)]
Limit history range to +-2000
Extensive test series on tweaking history limit and bonus
formula. At the end this was the best.
After 11959 games:
Mod vs Orig 2087 - 1934 - 7938 ELO +4 (+- 3.7) LOS 92%
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 27 Apr 2011 22:20:42 +0000 (23:20 +0100)]
Perft counts leaf nodes not generated moves.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 26 Apr 2011 12:10:02 +0000 (14:10 +0200)]
Use probe() as name for looking up into an hash table
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 26 Apr 2011 09:19:57 +0000 (11:19 +0200)]
Tidy up uci.cpp and siblings
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 26 Apr 2011 07:02:12 +0000 (09:02 +0200)]
Move OpeningBook and RK where are actually used
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 25 Apr 2011 21:59:56 +0000 (22:59 +0100)]
Fix a compile error with gcc
It seems gcc does not like an extra semicolon.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 25 Apr 2011 12:14:23 +0000 (13:14 +0100)]
Move MovePickerExt specializations away from headings
This unclutters a bit the heading part of search.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 25 Apr 2011 09:46:52 +0000 (10:46 +0100)]
Tidy up benchmark.cpp
Node count is different just becuase now we don't log on
"bench.txt" file anymore so that we avoid some calls to
pretty_pv() that calls Position::do_move().
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 24 Apr 2011 23:22:48 +0000 (00:22 +0100)]
Large API rename in ThreadsManager
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 24 Apr 2011 17:46:26 +0000 (18:46 +0100)]
Don't allocate MAX_THREADS hash tables if not necessary
This prevent crashing on mobile devices with limited RAM,
currently with MAX_THREADS = 32 we would need 44MB that
could be too much for a poor cellphone.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 24 Apr 2011 08:20:03 +0000 (09:20 +0100)]
Move pawn and material tables under Thread class
This change allows to remove some quite a bit of code
and seems the natural thing to do.
Introduced file thread.cpp to move away from search.cpp a lot
of threads related stuff.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 24 Apr 2011 07:54:36 +0000 (08:54 +0100)]
Rename MOVES_MAX in MAX_MOVES
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 24 Apr 2011 07:31:47 +0000 (08:31 +0100)]
Retire extensions as UCI option
There is no real need why an user should change these values.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 24 Apr 2011 07:18:39 +0000 (08:18 +0100)]
Document why we use per-thread pawn and material tables
Arisen from a discussion on talkchess.
No fnctional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 23 Apr 2011 14:42:23 +0000 (15:42 +0100)]
Fix some comments in early stop detection
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 23 Apr 2011 13:57:05 +0000 (14:57 +0100)]
Retire UseLogFile in search.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 22 Apr 2011 13:52:03 +0000 (15:52 +0200)]
Introduce and use SearchLimits
Pack a bit of global variables related to search limits in
a single struct.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 22 Apr 2011 10:02:54 +0000 (12:02 +0200)]
Use move_is_special() in pawn endgame condition
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 22 Apr 2011 09:57:22 +0000 (11:57 +0200)]
Retire SearchStartTime global
Use a static variable inside current_search_time() instead.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 22 Apr 2011 07:55:47 +0000 (09:55 +0200)]
Reduce loops in init_threads() and exit_threads()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 20 Apr 2011 09:18:36 +0000 (11:18 +0200)]
Move wake_sleeping_thread() to Thread class
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 19 Apr 2011 08:24:43 +0000 (10:24 +0200)]
Correctly implementg selDepth feature
Send to GUI the deepest search depth apart from
qsearch of the PV line.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 19 Apr 2011 07:56:59 +0000 (09:56 +0200)]
Move sleepLock and sleepCond under Thread
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 19 Apr 2011 07:29:28 +0000 (09:29 +0200)]
Increase risk of blunders at low skill levels
According to Heinz's tests current setup is in fact too
strong for weak players. This seems the best according
to his tests.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 16 Apr 2011 09:25:22 +0000 (10:25 +0100)]
Use only history to score non captures
It seems gain is practically unuseful, so remove.
After 13554 games:
Mod vs Orig 2252 - 2319 - 8983 ELO -1 (+- 3.4)
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 17 Apr 2011 09:31:26 +0000 (10:31 +0100)]
Small simplification in scale_by_game_phase()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 16 Apr 2011 13:41:53 +0000 (14:41 +0100)]
Move ply to SearchStack
Shrink search() signature for better readibility.
We get also a nice 1.3% speed increase.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 16 Apr 2011 10:24:30 +0000 (11:24 +0100)]
Remove one indentation level in get_next_move()
Small renaming and fix some comments.
No functional and no speed change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 15 Apr 2011 16:14:12 +0000 (18:14 +0200)]
Code style in tt.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 15 Apr 2011 15:41:45 +0000 (17:41 +0200)]
Better self-document LMR reduction() formula
Suggested by Onno
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 14 Apr 2011 13:59:49 +0000 (15:59 +0200)]
Promote OptionsMap to a class
And add a bit of documentation too.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 16 Apr 2011 09:21:13 +0000 (10:21 +0100)]
Fix a stale comment
Spotted by Onno
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 14 Apr 2011 06:06:56 +0000 (07:06 +0100)]
Remove src/COPYING file
It is enough the one in the base directory
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 14 Apr 2011 06:04:32 +0000 (07:04 +0100)]
Remove "divide by zero" workaround
It is now useless because of the condition at the beginning.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 13 Apr 2011 13:12:33 +0000 (15:12 +0200)]
Cleanup debug counters
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 13 Apr 2011 09:54:41 +0000 (11:54 +0200)]
Move move_is_legal() under Position class
It is a more logical place than in move generation file.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 13 Apr 2011 07:08:19 +0000 (09:08 +0200)]
Some more cleanup in endgame.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 12 Apr 2011 05:27:00 +0000 (07:27 +0200)]
Fix some warnings and a compile error with icc
Unfortunatly icc does not understand that weakerSide and
strongerSide belongs to the base class :-(
So we have define them in the derived class.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 11 Apr 2011 16:12:41 +0000 (18:12 +0200)]
Move EndgameFunctions to endgame.cpp
And cleanup code while there.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 11 Apr 2011 13:33:35 +0000 (15:33 +0200)]
Increase MaterialTableSize 8 times
Now that we prefetch in material hash table we
can increase its size and gain something.
Hit rate is now of 98% from 92%
Speedup of 0.8%
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 11 Apr 2011 12:50:56 +0000 (14:50 +0200)]
Introduce and use NoPawnsSF[] in material.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 11 Apr 2011 09:32:55 +0000 (11:32 +0200)]
Tempeltize material imbalance
Speedup of almost 1%
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 11 Apr 2011 07:54:41 +0000 (09:54 +0200)]
Sync material.h with pawns.h
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 11 Apr 2011 07:03:34 +0000 (09:03 +0200)]
Prefetch also material tables
Prefetch both pawn and material tables in do_move() and
prefetch always, not only after a pawn move or a capture.
Speed up of 0,7%
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 9 Apr 2011 18:50:56 +0000 (19:50 +0100)]
Assorted code style and comments in pawns.cpp and pawns.h
The only interesting thing is that a backward or isolated
pawn cannot be a candidate passer, so code this condition.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 8 Apr 2011 06:48:05 +0000 (07:48 +0100)]
Retire mate threat extension
It seems we have a lot of totally useless code !
After 8577 games 1504 - 1451 - 5622 ELO +2 (+- 4.4)
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 7 Apr 2011 07:09:41 +0000 (08:09 +0100)]
Fix a compile error in debug mode
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 3 Apr 2011 08:19:08 +0000 (09:19 +0100)]
Assorted code style and comments in search.cpp
Nothing really serious....
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Mon, 4 Apr 2011 07:53:44 +0000 (09:53 +0200)]
Added -Wshadow option and fixed resulting warnings
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 2 Apr 2011 08:05:53 +0000 (09:05 +0100)]
Teach SF to blunder
Add blunder cabability to skill level feature.
The idea is that instead of choosing the best move at the end
of the ID loop, we now do this at a randomly chosen sampling depth
dependent on SkillLevel, so that at low skill levels we sample when
ID loop has reached only a small depth and so we have an higher
probability to pick up a blunder.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Joona Kiiski [Sat, 2 Apr 2011 07:15:05 +0000 (08:15 +0100)]
Use prob cut search to prune bad captures
The idea is to try a shallow search with reduced beta
on bad captures so to quickly prune them out in case
are really bad.
After 5529 games 966 - 868 - 3695 ELO +6 (+- 5.4) LOS 91%
Tested also version without upper limitation to 8 plies:
After 8780 games 1537 - 1398 - 5850 ELO +5 (+- 4.3) LOS 93%
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 26 Mar 2011 11:19:51 +0000 (12:19 +0100)]
Retire recapture extension also for PvNode
Seems that extension is useless.
After 10105 games
Mod vs Orig 1738 - 1702 - 6665 ELO +1 (+- 4)
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 1 Apr 2011 12:35:39 +0000 (14:35 +0200)]
Use a constant instead of value_mate_in(PLY_MAX)
And also apply the same to value_mated_in(PLY_MAX)
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 1 Apr 2011 12:19:51 +0000 (14:19 +0200)]
Retire value_is_mate()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 1 Apr 2011 11:48:13 +0000 (13:48 +0200)]
Simplify wait_for_stop_or_ponderhit()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Fri, 1 Apr 2011 11:36:14 +0000 (13:36 +0200)]
Retire update_killers()
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 27 Mar 2011 17:54:02 +0000 (18:54 +0100)]
Fine tune skill level
Rescaled Skill level from 0 to 20. At level 19 is still
comparable with Crafty 20.14, while at low levels strength
increase is now less steep.
Thanks to Joona and Heinz for testing and valuable
comments.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 27 Mar 2011 10:23:29 +0000 (11:23 +0100)]
Add "Skill level functionality
It is now possible to adjust skill level of Stockfish
from 10 (full strength) to 0.
Skill adjustment is done in such a way that is CPU speed and
time control largely independent, at least at low skills. It
means that given a skill we have same play level on a mobile
phone and on a super OCTAL CPU, at 1' per game or at 180'.
At skill 9 strength is that of an average engine, I have used
Crafty 20.14 to tune and we are more or less there. At skill 0
engine is pretty weak but still shows a realistic play.
When skill is not used we don't have any impact on the regular
code.
Idea to use MultiPV is from Heinz van Saanen, implementation and
formulas by me.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 26 Mar 2011 07:42:38 +0000 (08:42 +0100)]
Fix a compile error with icc
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 24 Mar 2011 10:06:00 +0000 (11:06 +0100)]
Send PV line to GUI only after resolving a fail high
This is how Shredder, Rybka and others do and
avoids user is confused by a fail high (sent to GUI)
followed by a fail low (not sent).
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 24 Mar 2011 09:05:14 +0000 (10:05 +0100)]
Triviality in position.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 23 Mar 2011 09:50:50 +0000 (10:50 +0100)]
Retire move_ambiguity() altogether
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 22 Mar 2011 08:24:14 +0000 (09:24 +0100)]
Simplify move_ambiguity()
And additional small touches in move.cpp
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 19 Mar 2011 15:00:09 +0000 (16:00 +0100)]
Do not send ponder move if we don't have it
Has been reported by Justin Blanchard that
this creates problems on some buggy GUI.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 17 Mar 2011 12:47:15 +0000 (13:47 +0100)]
Use intrinsic in pop_1st_bit() under MSVC 64 bits
Around 1% speedup when compiled with MSVC 64
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 12 Mar 2011 15:57:02 +0000 (16:57 +0100)]
Additional cleanup in bitbase.cpp
Also better document what code does.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 12 Mar 2011 11:04:02 +0000 (12:04 +0100)]
Move KPKBitbase[] where it belongs
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sat, 12 Mar 2011 10:22:02 +0000 (11:22 +0100)]
Fix a couple of issues in bitbase.cpp
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 10 Mar 2011 13:39:53 +0000 (14:39 +0100)]
Reintroduce initialization of some bitboards
With off-by-one bug in InFrontBB[] loop fixed.
Also use int instead of File to workaround a bug
in mingw 4.4.0 in first loop that cycles forever.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 9 Mar 2011 08:58:26 +0000 (09:58 +0100)]
Rename NonSlidingAttacksBB[] in StepAttacksBB[]
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Wed, 9 Mar 2011 08:20:43 +0000 (09:20 +0100)]
Update copyright notes in rkiss.h
New info after a thread on talkchess:
http://www.talkchess.com/forum/viewtopic.php?t=38313
and some emails exchange with Heinz.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Thu, 10 Mar 2011 07:07:07 +0000 (08:07 +0100)]
Revert previous patch due to miscompile under gcc
I need to understand what's going on, in the
meantime revert.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Tue, 8 Mar 2011 13:38:17 +0000 (14:38 +0100)]
Change initialization of some bitboards
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
Marco Costalba [Sun, 20 Feb 2011 10:07:13 +0000 (11:07 +0100)]
Increase MAX_THREADS to 32
No speed regression after 8731 games:
Mod vs Orig 1394 - 1342 - 5995 ELO +2 (+- 4.1)
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>