Sudoku Puzzle Generator

Generate 4x4 Sudoku Puzzles

a b 1C 1D
b c 2C 2D
3A 3B 3C 3D
4A 4B 4C text4D
a b 1C 1D
b c 2C 2D
3A 3B 3C 3D
4A 4B 4C 4D