Advanced Sudoku is a logic-based placement puzzle. It is complex version of Traditional Sudoku. AvexLab Advanced Sudoku is game for experienced players. The object is to fill the grid so that every column, every row and every 4x4 box contains the digits 1 to 16. The game field 16x16 is used. There is photo background now.
Sudo Sudoku 1.2
Sudoku Puzzle Game
A Windows Puzzle Game and Solver.
Sudoku Puzzles Ace 1.50
Millions of Sudoku puzzles (free trial)
100 Sudoku puzzles in 5 degrees of difficulty
500 Sudoku Puzzles Ebook With Solutions