Ultimate Sudoku by Code This Lab srl

Solve logic puzzles by filling a 9x9 grid with numbers so each row, column, and box contains unique digits. The game challenges players to deduce missing numbers using classic Sudoku rules, with increasing difficulty as puzzles progress. Pencil marks assist in tracking possible values for uncertain cells, enhancing strategic deduction. Key Features • Number placement logic mechanic • Interactive pencil mark system • Difficulty ramp with puzzle complexity • Timed challenge mode option • Classic grid layout and design