tviigg.

bench 3533707
Vizvezdenec · Jul 10, 2019 · ef65340 · ef65340
1 parent df22bf9
commit ef65340
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Showing 2 changed files with 6 additions and 5 deletions.
diff --git a/src/evaluate.cpp b/src/evaluate.cpp
@@ -708,11 +708,6 @@ namespace {
     behind |= shift<Down>(behind);
     behind |= shift<Down+Down>(behind);
 
-    if (more_than_one((FileABB | FileBBB) & pos.pieces(Us, PAWN) & shift<Down>(pos.pieces(Them, PAWN))))
-    	safe &=~FileCBB;
-    if (more_than_one((FileGBB | FileHBB) & pos.pieces(Us, PAWN) & shift<Down>(pos.pieces(Them, PAWN))))
-    	safe &=~FileFBB;
-
     int bonus = popcount(safe) + popcount(behind & safe);
     int weight = pos.count<ALL_PIECES>(Us) - 1;
     Score score = make_score(bonus * weight * weight / 16, 0);

diff --git a/src/search.cpp b/src/search.cpp
@@ -1036,6 +1036,12 @@ namespace {
               // Prune moves with negative SEE (~10 Elo)
               if (!pos.see_ge(move, Value(-29 * lmrDepth * lmrDepth)))
                   continue;
+
+              if (type_of(movedPiece) == PAWN 
+                  && relative_rank(us, from_sq(move)) == RANK_2
+                  && relative_rank(us, to_sq(move)) == RANK_3
+                  && !pos.see_ge(move))
+                  continue;
           }
           else if ((!givesCheck || !extension)
                   && !pos.see_ge(move, -PawnValueEg * (depth / ONE_PLY))) // (~20 Elo)