Program to generate and solve Sudoku puzzles in 2D or 3Dhttps://apps.kde.org/ksudoku
KSudoku is a program that can generate and solve sudoku puzzles. The
word Sudoku means "single number in an alloted place" in Japanese. Some
cells are filled with a number at the beginnning: the remaining are to
be filled by the player using numbers from 1 to 9, without repeating a
number twice on each column, row, or subsquare.