Paperboat Harbor

A boat leaves toward a matching exit only when its entire moving body has room. Some boards include shared locks.

1. Read the boat’s direction and the symbol of its exit.
2. Check the whole boat’s travel lane, then tap it to depart. A blocked boat stays safely in place.
3. Use lock switches when present. Undo reverses your last move; Hint checks the current arrangement.

Tap a boat or use Items. Arrow keys select and Enter departs. U undoes, H requests a hint, Escape opens the menu.

An open cell in front of a boat is only the beginning. The entire boat must travel through clear space to the matching exit.

Removing one boat changes which lanes are open. Recheck the neighbors before switching a lock again.

A lock is shared by boats using its passage. Plan which departure benefits from the current position before changing it.

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