Sudoku Vault

Fill empty cells with numbers 1 to 9 while following classic sudoku row and column logic. This version challenges players with a timed number placement system where multiple difficulty tiers subtly adjust puzzle complexity. Players advance through grid completion stages that test pattern recognition and logical deduction under slight time pressure. Key Features • Number input grid interface • Timed puzzle solving mechanic • Progressive difficulty scaling • Sequential grid completion stages • Classic 9x9 sudoku layout