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Author SHA1 Message Date
Marco Costalba
de828bdde7 Document decompression 2016-06-04 10:08:13 +02:00
Marco Costalba
f71e21e3af Drop alpha and beta in search 
Useless because they are always WDLLoss and WDLWin.
 2016-06-03 08:16:49 +02:00
Marco Costalba
9d088003f4 Get rid of tb_size[8] 
And align functions open braces to SF standard.
 2016-06-02 10:07:49 +02:00
Marco Costalba
02004b8e50 Fix groupLen[] size 
It is zero-terminated array of group lengths, so in case
of 6-men, all different peices we have 6 groups and we need
size 7 to account for the zero-termination.
 2016-06-02 08:36:40 +02:00
Marco Costalba
3077acaa2d Reworwk groups array 2016-06-01 18:02:04 +02:00
Marco Costalba
99d5346eb5 Document set_groups() 2016-06-01 12:54:15 +02:00
Marco Costalba
f9d894a675 Complete work in do_probe_table() 2016-05-30 18:06:00 +02:00
Marco Costalba
c568078c16 More work in do_probe_table() 2016-05-29 18:03:05 +02:00
Marco Costalba
15dce36035 Sync with master 
bench: 7031649
 2016-05-29 15:41:43 +02:00
Marco Costalba
65186e964b Assorted renaming and document 2016-05-29 12:11:15 +02:00
Stéphane Nicolet
07b247f943 Pins or discovered attacks on the opponent's queen 
Bonus for pins or discovered attacks on the opponent's queen

STC:
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 32020 W: 5914 L: 5652 D: 20454

LTC:
LLR: 2.97 (-2.94,2.94) [0.00,5.00]
Total: 10946 W: 1530 L: 1375 D: 8041

Bench: 7031649
 2016-05-28 14:57:58 +02:00
Stéphane Nicolet
abac509ccb Teach check_blockers to check also non-king pieces 
This is a prerequisite for next patch

No functional change.
 2016-05-28 14:52:21 +02:00
Marco Costalba
f4a1b3ac77 Reset TB when ucinewgame 
This unmaps all the memory mapped TB
freeing unsued memory.
 2016-05-28 11:00:25 +02:00
Marco Costalba
551a5246f0 Send uci 'info' to std::out as standard behaviour 2016-05-27 12:39:55 +02:00
Marco Costalba
8e2adf3c4c Move variable defintions where are used 2016-05-27 12:31:42 +02:00
Marco Costalba
ac65186fa9 Move 'wdl' and 'dtz' UCI commands under 'd' 2016-05-27 08:47:23 +02:00
Marco Costalba
c77a13ef4a Retire old DTZ table 2016-05-26 23:33:12 +02:00
Marco Costalba
5bd859e1fa Retire old DTZ probing code 2016-05-26 23:09:35 +02:00
Marco Costalba
1b00b426a0 Verify DTZ in hash is equivalent to current one 2016-05-26 23:09:32 +02:00
Marco Costalba
a12542cbaa Attempt to init() just once 
In case something goes wrong baseAddress is set to zero
and any further attempt to init() returns false.

This is a prerequisite for future work.
 2016-05-26 23:09:25 +02:00
Marco Costalba
2e3412fdd0 Use hash table also for DTZ 2016-05-26 23:09:19 +02:00
Marco Costalba
3ea9928f55 Revert "Add DTZ to WDL hash table" 
This reverts commit 19bc074c18.
 2016-05-26 18:57:57 +02:00
Marco Costalba
19bc074c18 Add DTZ to WDL hash table 
A single hash table to store both pointers.

Greatly simplify code.
 2016-05-26 18:51:25 +02:00
Stéphane Nicolet
ab0f4c0353 Simplify doubled pawn 
Only use doubled pawn malus when the doubled pawns are on consecutive squares.

Passed STC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 7678 W: 1469 L: 1325 D: 4884

And LTC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 26739 W: 3562 L: 3449 D: 19728

Bench: 8211685
 2016-05-26 12:33:44 +02:00
Marco Costalba
ff3165286c Make DTZEntry init() thread safe 2016-05-26 10:48:26 +02:00
Marco Costalba
5ebd56ebd8 Retire pos_code() 2016-05-26 10:20:44 +02:00
Marco Costalba
32c1f1da26 Rearrange WDLEntry API 
To avoid using temporaries like keys[]
 2016-05-26 09:54:16 +02:00
Marco Costalba
107750279d Move file name setup inside init() 2016-05-26 09:26:48 +02:00
Marco Costalba
ac136ea72b De-templetize a couple of functions 
Use simple overloads instead.
 2016-05-26 09:12:50 +02:00
Marco Costalba
c920c6c807 Improve some comments 2016-05-25 11:31:01 +02:00
Marco Costalba
23a548feaa Small tweak in probe_dtz() 2016-05-24 13:10:31 +02:00
Marco Costalba
09139d87cb Fix an issue with only capture moves 
When the only legal moves are captures, then
probe_wdl_table() returns a wrong score.
 2016-05-24 10:10:22 +02:00
Marco Costalba
f852b0ed8f Hanlde mate position in dtz probe 
Stick to the original code behaviour.
 2016-05-24 09:50:56 +02:00
Marco Costalba
36d6a1fd0a Third attempt: hopefully the last one 2016-05-23 09:26:18 +02:00
Marco Costalba
de5a03ff0f Second attempt at dtz loop 2016-05-22 15:53:57 +02:00
Marco Costalba
e9e9cfa9bf Further simplify opponent side DTZ search 2016-05-22 10:24:44 +02:00
Marco Costalba
eb16759a48 Explicitly initialize 'ready' flag 2016-05-22 09:49:03 +02:00
Marco Costalba
0610a13789 Initialize result before probing 2016-05-22 07:28:54 +02:00
Marco Costalba
8925a28cf1 Fix ep move for real this time 2016-05-21 21:51:23 +02:00
Marco Costalba
db8112ec9e Fix issue and rewrite search() flags 2016-05-21 21:39:04 +02:00
Marco Costalba
3731213994 Further simplify probe_dtz() loop conditions 2016-05-21 20:27:28 +02:00
Marco Costalba
6a6a7d2b22 Make probe_dtz_table() return correct dtz 2016-05-21 19:55:32 +02:00
Marco Costalba
96314cc971 Prefer readibility to (useless) optimization 2016-05-21 19:43:36 +02:00
Marco Costalba
de335433ea Added 'wdl' and 'dtz' UI debug commands 
Probe WDL and DTZ tables on current position.
 2016-05-21 15:14:50 +02:00
Marco Costalba
0700912dc5 Further improve probe_dtz() 2016-05-21 10:58:09 +02:00
Marco Costalba
0b040243ba Remove ep specific code from dtz probe 2016-05-21 10:43:34 +02:00
Marco Costalba
47e21c274d More work in probe_dtz_no_ep() 2016-05-21 10:33:53 +02:00
Marco Costalba
bea98066a0 Integrate WIN_PAWN_MOVE into the search() loop 2016-05-21 09:53:47 +02:00
Marco Costalba
4b068d50f6 Strong type probe state 2016-05-21 08:30:46 +02:00
Marco Costalba
af95d27fd7 Fix enpassant case to handle 2 ep moves 2016-05-21 07:31:03 +02:00