Hitori is a logic puzzle which consists of a grid of squares, each of which contains a number. The aim of the puzzle is to deduce which squares are to be blacked out and which are to be left white. The rules of the puzzle are as follows:
- There can only be one occurence (or none) of a given number in any row or column
- No two blacked out squares can be horizontally or vertically adjacent to each other
- All white squares must form one connected block when the puzzle is completed
Like Sudoku, Hitori is not a mathematical puzzle, because the numbers can be replaced by arbitrary symbols.
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Recreational puzzles |
Hashi T – Hitori – Kakuro – Kjarposko – Lights Out T – Sudoku |
Riddle-type puzzles |
Zebra Puzzle |