Hidato Solver
Solve square or hexagonal Hidato puzzles, including irregular outlines. On square boards, consecutive numbers can touch by an edge or corner; on hex boards, they share an edge.
Enter your Hidato puzzle
Select squares or hexagons, enter the clue numbers, and hide cells to match the puzzle’s outline.
Tap a square, then enter numbers. Consecutive numbers may touch diagonally.
Tip: For 25, tap 2 then 5. On hex boards, select Edit outline and tap a cell to add or remove it. Only visible cells count toward the final number.
Paste / copy a puzzle grid
Paste one row per line using spaces. . = blank, # = missing cell. The copied hex format begins with @hex to preserve its honeycomb shape. A copied square grid remains unchanged.
Solution & walkthrough
The solver keeps every clue fixed and uses the appropriate neighbor rules: eight directions for squares, six shared edges for hexagons.
Load an example or enter your own Hidato. Then click Find Solution to fill in the path.
Hidato normally uses every number from 1 to the number of open squares exactly once. If clues allow several answers, the page will identify that instead of claiming a unique solution. Extremely open puzzles may need additional clues.
Look for consecutive clues already on the board. They must touch. For clues several numbers apart, the missing numbers must form a continuous route. Blocked spaces cannot be used.
How to solve Hidato
- Number all visible cells from 1 to N, where N is the count of active puzzle cells.
- On square boards, consecutive numbers may touch by an edge or corner. On hexagons, consecutive numbers must share an edge; point-only contact does not count.
- Original printed clues must stay in their positions; the solver never moves them.
- Use Check Grid to spot invalid or repeated values; use Find Solution to fill in missing numbers.