Sudoku Express by Casual_Azerion_Old

Place numbers in a 9x9 grid by filling empty cells with digits 1 to 9 using logical deduction to avoid repeats in rows, columns, and 3x3 regions. The classic puzzle demands careful placement of each digit, with varying difficulty levels that increase the complexity of deduction and number allocation strategies. Key Features • Logical deduction number placement • Input-based grid control • Progressive puzzle difficulty scaling • Hint and error-checking systems • Classic 9x9 Sudoku layout