Hitori

THE PLAYBOOK · 850305

How to play Hitori

Choose Hitori at 850305 for a browser session with its rules close at hand. The aim is straightforward: Shade repeated numbers while keeping black cells separated and all white cells connected. This edition highlights learn from a completed round.

Twelve checked 5×5 boards; fixed black starter squares cannot be changed.

Learn from a completed round

Finish a round where possible, then identify one decision you would change. Revisit the example or mistake section for a focused second attempt.

Your goal

Shade repeated numbers while keeping black cells separated and all white cells connected.

Step by step

1. Click a cell to shade, mark or clear it.
2. No unshaded number may repeat in a row or column.
3. Black cells cannot share an edge.
4. Check puzzle verifies duplicates and connectivity.

Controls

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

A useful example

Two identical unshaded numbers in one row cannot both remain.

Watch out for this

Removing every duplicate can disconnect white cells.

Common questions