Simplest Sodoku



Simplest Sudoku is traditional sodoku game, which is a logic-based number placement puzzle.
Starting with a partially completed 9x9 grid, the objective is to fill the grid so that each row, each column, and each of the 3x3 boxes(blocks) contains the digits 1 to 9 exactly once.
Simplest Sodoku was made by referencing Elburnettes source code.