Tinkerbit › Hitori
Hitori: free daily puzzle
Black out cells so no number repeats, no blacks touch, whites stay connected.
About Hitori
Hitori is a Japanese logic puzzle first published in 1990 by Nikoli. Black out cells so no number repeats in any row or column (among whites), no two blacks are orthogonally adjacent, and all remaining whites stay connected.
Tips
- A cell flanked by two copies of its value must stay white.
- Three-in-a-row of the same number forces the middle white and ends black.
- Check connectivity regularly — an isolated white group means a mistake earlier.
How to play on Tinkerbit
- Play today’s daily puzzle, the same for everyone, or switch to Infinite for unlimited puzzles at Easy, Medium or Hard.
- Missed a day? The archive has every past daily puzzle.
- Tap the ? next to the title for the full rules and controls.
- Your time, streak and best score are saved, and you can share your result.
Kind of game: Logic.
More games like Hitori
- Sudoku: Daily 9×9 Sudoku — logic puzzle that rewards deduction.
- Queens: One queen per row, column, and colored region — no adjacencies.
- Tango: Balance suns and moons on a 6×6 grid. Row/column rules + edge constraints.
- Nonogram: Fill cells to match the number clues along each row and column.
- Kakuro: Cross-sums with digits 1–9; runs add up to each clue.
- Minesweeper: Clear the grid without setting off the mines.