A logic-based, combinatorial number-placement puzzle. Makes a great board game gift for number-puzzle lovers.

Features:
Promote logical thinking - logical skills are the core requirement for playing a Sudoku puzzle. The difficulty level depends on the number of clues given; the more complicated inference pattern will become as you play more challenging puzzle.
Anxiety relief - a great way to focus on the task at hand and clear the mind of stress and anxiety.
Develop problem solving skills - problem-solving skills will be developed unconsciously through the process of trial and error and logical thinking is engaged.
Improve your efficiency and fun to play
built-in drawer can store all tiles and the solutions booklet
Each tile has a red number on one side and a black number on the other side. At the beginning of the game, the black numbers are used as a given.
No more erasing - double-sided tiles for trial and error, no need to erase wrong number; no pencil or paper required.

Tips about the double-sided coloured tiles:
Using the black side for your definite answer
Using the red side for your possible answer, when sure turn over to black
The objective is to fill a 9 9 grid with digits so that each column, each row, and each of the nine 3 3 sub-grids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the digits from 1 to 9.

Specifications

Made with high-quality wood and eco-friendly, water-based paint, safe and durable.
Age 3 + up to adult
23x23x4 cm

What's in the box
1 x Sudoku game