8x8 Hidoku – 4 per Page (24 Printables)
Four 8x8 Hidoku grids on every sheet, each a 64-number path at a single level: the biggest grids of the series, four at a time.
Hidoku Generator
Make a Hidoku to print, the number path puzzle also known as Hidato, the name given to it by its inventor, the Israeli mathematician Gyora Benedek. Fill the grid with the numbers from 1 up to its number of cells, so that each number touches the next one by a side or by a corner. A few numbers are already written, always the first and the last, and every grid has a single way to link them all.
Choose the grid, from a small 5x5 to an 8x8 of 64 cells, then the level, and print a single grid on the sheet or a set of four. Easy shows about half of the numbers, Medium a little more than two in five, and Hard as few as a single solution allows, often around a third. The style draws the cells as one grid, or as separate squares with a small gap between them.
New draws a fresh path; Show the solution fills the empty cells with their numbers, in orange dots.
Version 1. Last updated on Thu, 29 Oct 2026.
Examples
The latest printable pages whose sheets were made with this generator, ready to download.
8x8 Hidoku (24 Printables)
The largest Hidoku of the series: 64 numbers to link into one path on an 8x8 grid, one grid per page, for patient and experienced solvers.
7x7 Hidoku – 4 per Page (24 Printables)
Four 7x7 Hidoku grids per page, each a separate path from 1 to 49 at the same level: compact sets of the number chain puzzle.
7x7 Hidoku (24 Printables)
A 7x7 grid where 49 numbers must line up into one path, one grid per page, from friendly to demanding.
Frequently Asked Questions
What Can You Make With the Hidoku Generator?
Number path puzzles on square grids of 5x5, 6x6, 7x7 and 8x8 cells, at three levels, drawn as a grid or as separate squares, one large grid or four smaller ones on an A4 sheet. Each puzzle has an answer key, revealed by Show the solution.
How Do You Play Hidoku?
Write the missing numbers so that the grid counts from 1 to its last cell without a gap, each number standing next to the one before it: above, below, beside or diagonally. Numbrix is a close cousin that forbids diagonal steps.
Is Hidoku the Same Puzzle as Hidato?
Yes, with the same rules. Hidato is the original name, chosen by Gyora Benedek from hida, the Hebrew word for riddle; the puzzle also travels under the name Hidoku, which this generator uses.
How Are the Levels Set?
By how many numbers stay on the grid. Easy keeps about half, which leaves short gaps to bridge; Medium keeps a little over two in five; Hard removes every number it can while one solution remains, so the gaps grow long and each step needs more thought.
Does Every Hidoku Have Only One Solution?
Yes. After each number is removed, a search tries every possible path through the empty cells, and the removal stays only if the search still finds exactly one. The first and the last numbers are never removed.
Which Grid Should I Start With?
The 5x5 grid, with its 25 cells, suits children and first attempts. The 6x6 and 7x7 grids give longer paths, and the 8x8, with 64 numbers to place, is the most demanding.
How Does the Hidoku Generator Work?
It first walks a random path that visits every cell once, moving each time to a neighboring cell, and numbers the cells along the way. Numbers then leave the grid one after another, picked at random, and a number stays removed only when the puzzle can still be solved in exactly one way.