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6ecab03dee15fe30bc0237919180a2e51e0ce4b1
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Vizvezdenec 6ecab03dee Adjust singular extension search depth 
This patch applies a different singular extension search logic in case the position is ttPv && !PvNode.
It changes the depth of this search, higher for this types of nodes, and lower for other nodes.

passed STC
http://tests.stockfishchess.org/tests/view/5e72bbaae42a5c3b3ca2e75e
LLR: 2.94 (-2.94,2.94) {-0.50,1.50}
Total: 12692 W: 2608 L: 2389 D: 7695
Ptnml(0-2): 238, 1414, 2839, 1601, 254

passed LTC
http://tests.stockfishchess.org/tests/view/5e731c07e42a5c3b3ca2e770
LLR: 2.96 (-2.94,2.94) {0.25,1.75}
Total: 145716 W: 19218 L: 18626 D: 107872
Ptnml(0-2): 1100, 13605, 42899, 14111, 1143

closes https://github.com/official-stockfish/Stockfish/pull/2590

Bench: 5398277
2020-03-20 21:07:37 +01:00
..
syzygy
Small cleanups
2020-03-14 17:04:50 +01:00
benchmark.cpp
Equations for edges and corners.
2020-03-09 22:16:26 +01:00
bitbase.cpp
Small cleanups.
2020-02-05 15:32:29 +01:00
bitboard.cpp
Rewrite initialization of PseudoMoves
2020-01-10 01:58:27 +01:00
bitboard.h
Small cleanups
2020-03-14 17:04:50 +01:00
endgame.cpp
Small cleanups
2020-03-14 17:04:50 +01:00
endgame.h
Small cleanups.
2020-02-05 15:32:29 +01:00
evaluate.cpp
Anchored bishops
2020-03-17 19:20:37 +01:00
evaluate.h
Small cleanups
2020-03-01 09:31:58 +01:00
main.cpp
Small cleanups.
2020-02-05 15:32:29 +01:00
Makefile
Small cleanups
2020-03-01 09:31:58 +01:00
material.cpp
Fix ambiguity between clamp implementations
2020-03-07 11:14:27 +01:00
material.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
misc.cpp
Small cleanups.
2020-02-05 15:32:29 +01:00
misc.h
Fix ambiguity between clamp implementations
2020-03-07 11:14:27 +01:00
movegen.cpp
simplify castling part of generate_all.
2020-03-14 16:27:54 +01:00
movegen.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
movepick.cpp
Improve move order near the root
2020-02-22 21:32:32 +01:00
movepick.h
Improve move order near the root
2020-02-22 21:32:32 +01:00
pawns.cpp
Equations for edges and corners.
2020-03-09 22:16:26 +01:00
pawns.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
position.cpp
Small cleanups
2020-03-14 17:04:50 +01:00
position.h
Simplify signature of remove_piece()
2020-01-23 17:31:45 +01:00
psqt.cpp
Equations for edges and corners.
2020-03-09 22:16:26 +01:00
search.cpp
Adjust singular extension search depth
2020-03-20 21:07:37 +01:00
search.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
thread_win32_osx.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
thread.cpp
Improve move order near the root
2020-02-22 21:32:32 +01:00
thread.h
Improve move order near the root
2020-02-22 21:32:32 +01:00
timeman.cpp
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
timeman.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
tt.cpp
Small cleanups.
2020-02-05 15:32:29 +01:00
tt.h
Small cleanups
2020-03-14 17:04:50 +01:00
types.h
Small cleanups
2020-03-14 17:04:50 +01:00
uci.cpp
Small cleanups
2020-03-14 17:04:50 +01:00
uci.h
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00
ucioption.cpp
Update lists of authors and contributors
2020-01-09 01:43:47 +01:00