Sudoku JT

ゲームの説明
Great version of Sudoku, one of the most addictive games. Put your mind to work an solve this puzzle
How to play
Sudoku begins with some of the grid cells already filled with numbers. The object of Sudoku is to fill the other empty cells with numbers between 1 and 9 (1 number only in each cell). Number can appear only once on each row, column and a region