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839 commits

Author SHA1 Message Date
Marco Costalba
c45818e9f8 Remove xxx_of_color() for real 
Remove also from assert expressions. Was hidden
in release mode.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-02-17 17:26:15 +01:00
Marco Costalba
9f5b709db7 Mobility is zero for a pinned piece 
A little bit more overhead, but better mobility evaluation.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-02-17 11:29:14 +01:00
Marco Costalba
2c955f25de Remove xxx_of_color() helpers 
They hide the underlying uniform function call with
no benefit.

A little bit more verbose but now is clear what happens.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-02-17 10:54:47 +01:00
Marco Costalba
4b53bb02f6 Fix a very old bug in queen mobility 
For queen mobility could be bigger then 15, so
we need count_1s() not count_1s_max_15().

This bug was introduced by patch:
"Group common evaluate code" of 24/9/2008

So it's almost 4 months and two release old!

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-10 16:11:33 +01:00
Marco Costalba
bdbbc4e06b Rewrite evaluate_common() as a template 
Seems to speed up this very hot path and code is
cleaner too.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-07 15:48:22 +01:00
Marco Costalba
5cacefe7c6 Another micro-optmization in valuate_passed_pawns() 
very small gain, but still a gain at the cost of
an extra indentation level.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-07 15:47:31 +01:00
Marco Costalba
9b87d151bc Fix a small bug in rook pawn evaluation 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-06 16:10:22 +01:00
Marco Costalba
cbfbf25d1b evaluate_passed_pawns() micro-optmization 
No functional change, only a bit faster.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-06 16:06:08 +01:00
Marco Costalba
90585a8a36 Final space inflate of evaluatio.cpp 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-06 15:59:08 +01:00
Marco Costalba
e236a0c652 Space inflate evaluate_passed_pawns() 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-06 15:49:33 +01:00
Marco Costalba
d0804341c5 Piece mobility: filter out squares protected by pawns 
Do not consider squares protected by enemy pawns
in mobility evaluation.

This reduces the mobility value by about 15%

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-05 15:14:16 +01:00
Marco Costalba
e3b03f13b3 Passed pawns: consider enemy rooks or queens from behind 
Merged from Glaurung 2.2

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-12-22 12:10:15 +01:00
Marco Costalba
54b7da120f King safety: retire rook contact check 
Merged from Glaurung 2.2

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-12-22 12:07:00 +01:00
Marco Costalba
61c6a3d5a0 Merge cosmetics from Glaurung 2.2 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-12-21 17:02:34 +01:00
Marco Costalba
31d4f0b734 Merge space weigth evaluation fromGlaurung 2.2 
Is a new evaluation rule that gives bonus in midgame
to the side that has more space behind pawns for its
minor pieces.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-12-21 16:26:36 +01:00
Marco Costalba
9d5d69e435 Revert sigmoid interpolator 
After deep test (1000 games) it seems do not improve anything,
actually seems slightly weaker.

So remove it for now.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-11-30 21:16:47 +01:00
Marco Costalba
af59cb1d63 Refactor Position::pinned_pieces() to use templates 
Also better document this interesting function.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-10-24 21:10:04 +02:00
Marco Costalba
5dc2312121 Update copyright info 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-10-20 21:47:20 +02:00
Marco Costalba
760f77872f Remove Positions::xxx_count() functions 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-10-20 21:47:18 +02:00
Marco Costalba
d4f14a8e83 Remove Position::xxx_list() functions 
No useful, only obfuscating.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-10-20 21:47:17 +02:00
Marco Costalba
d9e54ceaa1 Prefer template to name decoration 
This also allows faster code although bigger.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-10-20 21:47:16 +02:00
Marco Costalba
b00abed181 Space inflate evaluate_king() 
This is the most complex piece of software
so far.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-26 05:54:49 +02:00
Marco Costalba
2e3faae067 Clarify difference between king zone and adjacent zone 
There are subtle differences in the king evaluation
that should be clear to avoid misunderstandings.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-26 05:54:49 +02:00
Marco Costalba
453e815d4b Tidy up quick_evaluate() 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-26 05:54:49 +02:00
Marco Costalba
3e0dc9ee84 Tidy up middle game specific evaluation 
Also add starting position to benchmarks.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-26 05:54:49 +02:00
Marco Costalba
597ef38c39 Code style massage evaluate() 
No functional changes.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-26 05:54:49 +02:00
Marco Costalba
3ee3cdc09b Evaluate: weight_option() is static 
Declare function under local namespace. This removes a
warning from the picky Intel compiler.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:17:28 +02:00
Marco Costalba
ca891e9760 Cleanup read_weights() in evaluate.cpp 
Exception to 80 colums rule here, but result
seems better.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:02:16 +02:00
Marco Costalba
dfcfed6432 Evaluate: rename king attack variables 
A better naming IMHO

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:02:15 +02:00
Marco Costalba
34ca22486a Further cleanup evaluate() 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:02:15 +02:00
Marco Costalba
f56af8e84d Rename pawn_rank() in relative_rank() 
It is more clear, at last for me.

Also cleanup evaluate_rook() and evaluate_queen()

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:02:15 +02:00
Marco Costalba
3263ee8557 Add also outposts evaluation in common code 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:02:14 +02:00
Marco Costalba
853ce65f17 Group common evaluate code 
This removes code redundancy but perhaps
impact performance due to uninlining.

Testing for regression is needed. For now
aim to best code readibility.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 21:02:14 +02:00
Marco Costalba
7dd0c39714 Warnings termination fest 
A bunch of Intel C++ warnings removed, other silent out.

Still few remaining but need deeper look.

Also usual whitespace crap removal noise.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-24 00:32:53 +02:00
Marco Costalba
67f975e56b init_eval: small cleanup 
Functionality not changed.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-23 08:07:50 +02:00
Marco Costalba
1d8994402b Fix InitKingDanger initialization 
Last line was missing.

Also reformat tables constants to be more readable.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-23 08:07:42 +02:00
Marco Costalba
cde7b30b65 Add new superlinear interpolator 
Faster transition and between phases and
more persistent during mid and ending game.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-20 21:56:46 +02:00
Marco Costalba
2f5012a3eb Fix another conversion warning: Bitboard->int 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-09-18 12:26:31 +02:00
Marco Costalba
bb751d6c89 Initial import of Glaurung 2.1 2008-09-01 07:59:13 +02:00