NumPlace

Number Place

The objective is to fill a 9×9 grid with digits.

Rule of Number Place
・That each column contains all of the digits from 1 to 9.
・That each row contains all of the digits from 1 to 9.
・That each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9.

There are three different difficulty level of the game.
(The number of initial display number)
・Easy - 33-36 numbers
・Medium - 27-30 numbers
・Hard - 21-24 numbers

The colors mean.
[9×9 grid]
・Green - has been selected
・Yellow - same as selected number
・Red - violation of the rules
[1-9 keys]
・Green - has been selected
・Light blue - completed