Exclude blockers for king from mobility area

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index a6c93b43550722e5c4584816497b1768d3b3ce4d..21c36f5090bfadbbc073c0939702238468cf6601 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1064,8 +1064,7 @@ moves_loop: // When in check, search starts from here
           extension = 1;
 
       // Last captures extension
-      else if (   PvNode
-               && PieceValue[EG][pos.captured_piece()] > PawnValueEg
+      else if (   PieceValue[EG][pos.captured_piece()] > PawnValueEg
                && pos.non_pawn_material() <= 2 * RookValueMg)
           extension = 1;
 
@@ -1478,9 +1477,7 @@ moves_loop: // When in check, search starts from here
                        && !pos.capture(move);
 
       // Don't search moves with negative SEE values
-      if (  (!inCheck || evasionPrunable)
-          && !(givesCheck && pos.is_discovery_check_on_king(~pos.side_to_move(), move))
-          && !pos.see_ge(move))
+      if (  (!inCheck || evasionPrunable) && !pos.see_ge(move))
           continue;
 
       // Speculative prefetch as early as possible