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Author SHA1 Message Date
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
Leonid Pechenik
71bfbb22fc More detailed dependence of time allocation on the magnitude of score change 
10+0.1:
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 5657 W: 1130 L: 979 D: 3548

60+0.6:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 36884 W: 5002 L: 4762 D: 27120

bench: 8428997
 2016-05-20 19:44:50 +02:00
loco-loco
7cb8cbb403 Assorted pruning tweaks 
LTC:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 38257 W: 5206 L: 4961 D: 28090

STC:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 16550 W: 3110 L: 2914 D: 10526

Bench: 8428997
 2016-05-20 19:34:49 +02:00
Marco Costalba
6eb670ad37 Integrate ENPASSANT in the search 2016-05-20 19:01:48 +02:00
Marco Costalba
9a0f8b38c3 BENCH CHANGE! Switch to new loop cycle 
Bench change is due to different move
generation order. But functionality
remains the same.
 2016-05-19 19:11:38 +02:00
Marco Costalba
8634305cb9 Test new loop cycle in probe_ab() 
Currently we return as soon as we reach
beta. This makes the bench signature to
depend on the move order in case we have
more than one possible capture and only
one of them reach beta then the nodes
searched are different in case we first
test one capture or the other.

Verify that the best value found by the
two move llops are the same. This check
will allow to remove old loop, replaced
by new one.
 2016-05-19 18:56:25 +02:00