1 files changed, 20 insertions, 1 deletions
diff --git a/src/board.hpp b/src/board.hpp
index 592b438..e9e3570 100644
--- a/src/board.hpp
+++ b/src/board.hpp
@@ -52,7 +52,26 @@ struct Move {
   Position From;
   Position To;
 
-  bool operator==(const Move &) const = default;
+  PieceType promotion = NONE;
+  bool operator==(const Move &other) const {
+    return From == other.From && To == other.To && promotion == other.promotion;
+  }
+};
+struct UndoMove {
+  Piece movedPiece;
+  Piece capturedPiece;
+
+  Position from;
+  Position to;
+
+  bool oldTurn;
+  bool oldCanEnpassant;
+  Position oldEnPassant;
+  std::string oldCaslte;
+  int oldHalfMoveClock;
+  int oldMoveClock;
+  std::unordered_map<uint64_t, int> OldThreeFoldMap;
+  GameState oldState;
 };
 void printBoard(Game *b);
 Piece createPiece(PieceType type, bool color, bool moved = false);