A LITTLE LOGIC. A SEA OF POSSIBILITIES.

Nurikabe Islands & Sea

Shape the islands. Connect the sea.
Discover what must be true.

YOUR NEXT SMALL DISCOVERY

Island No. 001

Active tool: Island

Use arrow keys to move. I marks island, S marks sea, E erases. Enter or Space uses the active tool. Numbered cells are permanent. Escape cancels a drag stroke. Right click marks sea. Control or Command Z undoes; Shift Z redoes.

Board size100%Scroll the board at larger sizes.

CHOOSE YOUR NEXT DISCOVERY

The island collection

Difficulty reflects deduction and solver search measurements, with board size considered for a comfortable progression.

A QUIET INTRODUCTION

These are worked positions from verified, uniquely solvable puzzles. Practice does not change your saved game.

Your discoveries

Best completion recorded for each puzzle. Independent takes precedence over hinted, then revealed. In-progress restarts keep your history.