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small cleanups

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closes https://github.com/official-stockfish/Stockfish/pull/2653

No functional change
This commit is contained in:
Joost VandeVondele
2020-05-23 13:26:13 +02:00
parent d940e59dad
commit 383b12e1a5
14 changed files with 64 additions and 50 deletions
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src/position.cpp
+1 -1
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@@ -591,7 +591,7 @@ bool Position::pseudo_legal(const Move m) const {
if ( !(attacks_from<PAWN>(from, us) & pieces(~us) & to) // Not a capture
&& !((from + pawn_push(us) == to) && empty(to)) // Not a single push
&& !( (from + 2 * pawn_push(us) == to) // Not a double push
&& (rank_of(from) == relative_rank(us, RANK_2))
&& (relative_rank(us, from) == RANK_2)
&& empty(to)
&& empty(to - pawn_push(us))))
return false;