pretty cool

app/src/main/java/chess/model/Game.java

@@ -0,0 +1,31 @@
+package chess.model;
+
+import chess.model.visitor.PiecePathChecker;
+import common.Signal0;
+import common.Signal1;
+
+public class Game {
+	private final ChessBoard board;
+
+	public final Signal0 OnRenderUpdate = new Signal0();
+	public final Signal1<Move> OnMoveRefused = new Signal1<>();
+
+	public Game(ChessBoard board) {
+		this.board = board;
+	}
+
+	public ChessBoard getBoard() {
+		return board;
+	}
+
+	public void tryMove(Move move) {
+		boolean valid = new PiecePathChecker(board, move).isValid();
+		if (!valid) {
+			this.OnMoveRefused.emit(move);
+			return;
+		}
+		this.board.applyMove(move);
+		this.OnRenderUpdate.emit();
+	}
+
+}