THE PLAYBOOK · SJBOB
How to play Hitori
Bring your attention to one round of Hitori. Shade repeated numbers while keeping black cells separated and all white cells connected. Keep the game area visible while you use its controls. Compare the starting position with the example in the Guide. Look at what changes after your first action.
Play twelve 5×5 puzzles. Any shaded starting cells remain fixed.
Read before acting
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Notice the feedback after each input.
Your goal
Shade repeated numbers while keeping black cells separated and all white cells connected. An attractive position is not enough unless the goal is met. Return to the instructions when a step is unclear.
Step by step
- Click a cell to shade, mark or clear it.
- No unshaded number may repeat in a row or column.
- Black cells cannot share an edge.
- 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. Use the control method described here for this activity. Avoid pressing the same control repeatedly while a move is being processed.
A useful example
Two identical unshaded numbers in one row cannot both remain. Compare this with the rule that governs the move. Keep the game’s format in mind.
Watch out for this
Removing every duplicate can disconnect white cells. A different version of the game may use a different rule. After a move, check what changed. Decide which rule explains the new state before acting again.
Common questions
While learning, what is the goal of Hitori?
The key detail is this: Shade repeated numbers while keeping black cells separated and all white cells connected.
How do I control Hitori?
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
For this browser game, what example helps explain Hitori?
For clarity: Two identical unshaded numbers in one row cannot both remain.
While reading the Guide, what should I watch out for in Hitori?
For clarity: Removing every duplicate can disconnect white cells.
Before I begin, what format does Hitori offer?
Play twelve 5×5 puzzles. Any shaded starting cells remain fixed.
On this playing page, which play mode does Hitori use?
For clarity: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.