Restrict mobility of pinned pieces

Passed both short TC:
LLR: 3.00 (-2.94,2.94) [-1.50,4.50]
Total: 54342 W: 10950 L: 10692 D: 32700

And long TC:
LLR: 2.95 (-2.94,2.94) [0.00,6.00]
Total: 61976 W: 10654 L: 10251 D: 41071

This patch introduces a slowdown of 3.5 % !!!!!

bench: 7911558
This commit is contained in:
Gary Linscott
2013-11-07 13:59:11 -05:00
committed by Marco Costalba
parent ecd07e51d0
commit 13d1f0ae43
6 changed files with 19 additions and 12 deletions

View File

@@ -1507,7 +1507,7 @@ void RootMove::extract_pv_from_tt(Position& pos) {
} while ( tte
&& pos.pseudo_legal(m = tte->move()) // Local copy, TT could change
&& pos.legal(m, pos.pinned_pieces())
&& pos.legal(m, pos.pinned_pieces(pos.side_to_move()))
&& ply < MAX_PLY
&& (!pos.is_draw() || ply < 2));