2026-03-29 14:02:25 +02:00
1 changed files with 3 additions and 5 deletions
@@ -43,11 +43,9 @@ object PgnParser:
          parseAlgebraicMove(token, board, history, color) match
            case None => state  // unrecognised token — skip silently
            case Some(move) =>
-              val newBoard =
-                if move.castleSide.isDefined then
-                  board.withCastle(color, move.castleSide.get)
-                else
-                  board.withMove(move.from, move.to)._1
+              val newBoard = move.castleSide match
+                case Some(side) => board.withCastle(color, side)
+                case None       => board.withMove(move.from, move.to)._1
              val newHistory = history.addMove(move)
              (newBoard, newHistory, color.opposite, acc :+ move)