Echo Path

Size: 5×5 7×7 9×9 Difficulty: Easy Medium Hard Obstacles | Echoes: 0 New Puzzle

Goal: Draw a path that visits every cell exactly once (including blue echo stones).

Rules:

• Start from the orange square.
• Hold left mouse button and drag to move up, down, left or right.
• Cannot cross your own path.
• You can enter blue echo stones freely.
• When leaving a blue stone, you must turn exactly 90° (bounce). You cannot pass straight through.
• Obstacles (gray squares): impassable.
• Undo: Drag backward to retrace your steps.

Win: Cover every cell exactly once.