Sudoku Collection: Classic Sudoku, Killer Sudoku, Diagonal Sudoku, Jigsaw Sudoku

Solve 320 handcrafted puzzles across eight Sudoku variants: Classic, Killer, Diagonal, Jigsaw, Hyper, Thermo, Arrow, and Kropki. Use candidates, undo and redo, optional assists, 16 backgrounds, original music, and ambient sounds to solve at your own pace.