Other Items 366 Feel fine Easy Sudoku 550 JPY 982 ChoGekikara (Really really hard) Sudoku 12 820 JPY 370 Enjoyable and doable! Easy Sudoku 600 JPY 463 Nankan(Hard)Sudoku 3 720 JPY 386 Not so easy! Sudoku for schoolchildren (all graders) 900 JPY 357 Just Right! Sudoku (a bit hard) 2 700 JPY