Fix en passant hash and bench debug builds

src/Lynx.Benchmark/PieceHash.cs → src/Lynx.Benchmark/EnPassantHash.cs

@@ -73,7 +73,7 @@ private static long AndTrick(int enPassantSquare)
             return default;
         }
 
-        var file = enPassantSquare & 0x03;
+        var file = enPassantSquare & 0x07;
 
         return _table[file, (int)Piece.P];
     }

src/Lynx.Benchmark/MakeUnmakeMove_implementation.cs

@@ -976,6 +976,9 @@ public static long PositionHash(MakeMovePosition position)
 
     public static class MakeMoveMoveGenerator
     {
+#if DEBUG
+        private static readonly NLog.Logger _logger = NLog.LogManager.GetCurrentClassLogger();
+#endif
         private const int TRUE = 1;
 
         /// <summary>

src/Lynx.Benchmark/MakeUnmakeMove_integration.cs

@@ -1384,6 +1384,10 @@ public static long PositionHash(MakeMovePosition position)
 
     public static class MakeMoveMoveGenerator
     {
+#if DEBUG
+        private static readonly NLog.Logger _logger = NLog.LogManager.GetCurrentClassLogger();
+#endif
+
         private const int TRUE = 1;
 
         /// <summary>

src/Lynx/ZobristTable.cs

@@ -34,7 +34,7 @@ public static long EnPassantHash(int enPassantSquare)
         }
 #endif
 
-        var file = enPassantSquare & 0x03;  // enPassantSquare % 8
+        var file = enPassantSquare & 0x07;  // enPassantSquare % 8
 
         return _table[file, (int)Piece.P];
     }