Joost VandeVondele 4d647428d8 Remove goto, limit skipping to NMP ...

This patch simplifies the control flow in search(), removing an if
and a goto. A side effect of the patch is that Stockfish is now a
little bit more selective at low depths, because we allow razoring,
futility pruning and probcut pruning after a null move.

passed STC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 32035 W: 6523 L: 6422 D: 19090
http://tests.stockfishchess.org/tests/view/5af142ca0ebc597fb3d39bb6

passed LTC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 41431 W: 6187 L: 6097 D: 29147
http://tests.stockfishchess.org/tests/view/5af148770ebc597fb3d39bc1

Ideas for further work:

• Use the nodes credit opened by the patch (the increased selectivity)
  to try somewhat higher razoring, futility or probcut margins at [0..4].

Bench: 4855031

2018-05-09 01:42:34 +02:00

..

syzygy

Tablebases root ranking

2018-04-18 18:46:24 +02:00

benchmark.cpp

New Year 2018

2018-01-01 13:18:10 +01:00

bitbase.cpp

Mark all compile-time constants as constexpr.

2018-03-18 23:48:16 +01:00

bitboard.cpp

Some small changes

2018-04-01 02:32:55 +02:00

bitboard.h

Correct a bug introduced by Stéphane in the previous patch.

2018-05-02 13:38:00 +02:00

endgame.cpp

Simplify KBPKB endgame with opposite bishops

2018-04-01 02:19:42 +02:00

endgame.h

New Year 2018

2018-01-01 13:18:10 +01:00

evaluate.cpp

Penalty for bad bishop with blocked central files

2018-05-01 07:12:27 +02:00

evaluate.h

Use per-thread dynamic contempt

2018-03-30 10:48:57 +02:00

main.cpp

Further documentation and coding style on TB code

2018-04-12 09:37:18 +02:00

Makefile

Fix 'make strip' for mingw.

2018-04-29 06:53:51 +02:00

material.cpp

Always scale using pawn contribution

2018-04-29 07:26:25 +02:00

material.h

New Year 2018

2018-01-01 13:18:10 +01:00

misc.cpp

Fix an MSVC 2017 error and warnings.

2018-03-16 22:37:03 +01:00

misc.h

Switch time management to 64 bits

2018-03-27 16:25:41 +02:00

movegen.cpp

Fix a few minor code style inconsistencies

2018-03-21 01:35:05 +01:00

movegen.h

New Year 2018

2018-01-01 13:18:10 +01:00

movepick.cpp

Remove template W param

2018-04-23 08:46:32 +02:00

movepick.h

Drop the lever condition for backwards

2018-05-08 11:14:43 +02:00

pawns.cpp

Drop the lever condition for backwards

2018-05-08 11:14:43 +02:00

pawns.h

Simplify the ShelterStrength[] array

2018-04-23 09:49:05 +02:00

position.cpp

Tablebases root ranking

2018-04-18 18:46:24 +02:00

position.h

Tablebases root ranking

2018-04-18 18:46:24 +02:00

psqt.cpp

Mark all compile-time constants as constexpr.

2018-03-18 23:48:16 +01:00

search.cpp

Remove goto, limit skipping to NMP

2018-05-09 01:42:34 +02:00

search.h

Tablebases root ranking

2018-04-18 18:46:24 +02:00

thread_win32.h

New Year 2018

2018-01-01 13:18:10 +01:00

thread.cpp

Update various comments

2018-04-29 06:48:18 +02:00

thread.h

Tablebases root ranking

2018-04-18 18:46:24 +02:00

timeman.cpp

Switch time management to 64 bits

2018-03-27 16:25:41 +02:00

timeman.h

Document Elo impact of various parts of search

2018-04-01 03:21:45 +02:00

tt.cpp

New Year 2018

2018-01-01 13:18:10 +01:00

tt.h

Mark all compile-time constants as constexpr.

2018-03-18 23:48:16 +01:00

types.h

Always scale using pawn contribution

2018-04-29 07:26:25 +02:00

uci.cpp

Fix a few minor code style inconsistencies

2018-03-21 01:35:05 +01:00

uci.h

Allow UCI parameters to be double

2018-04-23 08:08:27 +02:00

ucioption.cpp

Allow UCI parameters to be double

2018-04-23 08:08:27 +02:00