Hi Sudoku

9×9 Sudoku

Hi Sudoku is a Sudoku puzzle game for PC. You fill a 9×9 grid by placing numbers according to classic Sudoku rules, choosing from five difficulty levels ranging from Beginner to Expert.

Puzzles and tools

Play through fixed stages or pick a puzzle in free play. Pencil marks help track possible numbers, while highlights can show related cells and matching numbers. You can undo moves and ask for step-by-step hints. Each hint explains a logical step and highlights the relevant cells; you decide whether to apply its conclusion.