Hitori Online

Play Hitori online on a 5x5 number grid. Shade duplicate numbers without adjacent black cells, keep white cells connected, and try three difficulty settings.

How to play

1. Tap cells to black them out or restore them, leaving no repeated numbers in any white row or column.
2. Black cells cannot touch orthogonally, and all white cells must remain connected through their orthogonal neighbors.
3. White-mark mode protects confirmed white cells; inspect mode highlights duplicates. Meet every condition to pass.

Playing tips

Shade cells so that no number repeats among the remaining white cells in any row or column. Black cells must not share an edge. All white cells must stay connected through their horizontal or vertical neighbours.

Use white-cell protection to mark decisions you want to keep, and inspect duplicate groups before shading another cell. A locally valid move can still cut the white area into separate regions.

Logic

• Binary Balance — Find the balance hidden between zero and one.
• Skyscraper View — Use clues around the edge to deduce tower heights.
• Arithmetic Cages — Solve arithmetic and grid logic together.