Expert

Setup: 8×8 · 28 arrows

The toughest, most tangled difficulty of all.

An 8×8 grid with 28 arrows. The arrows interlock deeply, so you'll need to carefully plan the domino order.

A true challenge that puts cascade planning and forward thinking to the test, all within three hearts.

• Plan your escape order working backward.
• You have little margin for error, so verify every move.
• If you get blocked, undo and try a different order.

▶ Start at this difficulty