Sea & Sand

About Sea & Sand

A pirate's logic puzzle. Every X marks an island of exactly that many squares. Chart the sea around them so islands never touch and all the water connects, with no guessing required.

Every X on the chart marks an island of exactly that many squares. Islands never touch, all the sea is one connected body of water, and open water never pools in a 2×2 block. Every chart can be reasoned out square by square.

How to play Sea & Sand

1. Tap a square once for sea, twice for sand, and again to clear it.
2. A square touching two different Xs can only be sea.
3. When an island has all its squares, it is ringed with sea for you.
4. Fog shows the squares no island can reach: they are sea.

What's inside

• Charts from 5×5 to 8×8, with trickier rules as you go
• A new Daily Chart every day, with a streak and a shareable result
• Three doubloons per chart: a wrong mark costs one
• Every X shows how many squares it still needs
• A no-hint streak and a best time for every size
• Hints that explain the rule behind the move
• Light and dark mode, plays offline, no account needed

Sea & Sand screenshots

Sea & Sand questions