How to Play Hitori

THE PLAYBOOK · JINSHENGTEC

Hitori: learn through an example

Hitori gives you a focused activity to play in your browser. Shade repeated numbers while keeping black cells separated and all white cells connected. Use the example below to understand a decision. Compare the starting position with the example in the Guide. Choose a clear next step rather than rushing through the instructions.

Play twelve 5×5 puzzles. Any shaded starting cells remain fixed.

Take a closer look while playing

After a move, check what changed. Decide which rule explains the new state before acting again. Use the example to check your reasoning.

Your objective

Shade repeated numbers while keeping black cells separated and all white cells connected. Use the instructions to see which actions move you towards it. Take a moment to understand the current position.

Making your moves

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.

Keyboard and screen controls

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Read a button’s label before selecting it. Read the example below alongside these instructions.

Try this example

Two identical unshaded numbers in one row cannot both remain. Your next round may have a different position, so inspect it before acting. Take a moment to compare.

Check this before moving on

Removing every duplicate can disconnect white cells. Check the rule before repeating the action. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.

Helpful answers for players