Every 2 minutes, gamers around the world compete in the same sudoku board.

[Rules]
Fill in all empty cells on the board with the correct numbers. Cells each take a number between 1and 9. A number can appear once in a sing row, column, or 3x3 box.

[How to Play]
1 Select a number you want put in.
2 Press lightly to put in a note.
3 Press hard to put in a number.
4 Time cutoff after 7 minutes.

[For beginners & practice]
If you set the [Auto Mode] on, you can easily know where to put in, but you can’t get high score.

[Ranking]
The ranking is recorded by the average score and the number of medals earned.(Gold medal for 1st place, silver medal for 2nd and 3rd place, bronze medal for 4th to 6th places.)