Question

What is a sudoku puzzles

Answer 1

Sudoku is a number puzzle.

There is 'Wordoku' too.

there are 6x6, 9x9(popular), 12x12 size, and more.

It looks like this.

This picture below is 6x6 size.

Answer 2

A Sudoku puzzle is a number puzzle that originated in Japan. The basic idea is to get the numbers 1-9 horizontally, vertically, diagonally, and in each box without repeats