Hexadoku 16x16 Sudoku Puzzles To Print May 2026

For most puzzle enthusiasts, the classic 9x9 Sudoku is a satisfying mental workout. But for the dedicated few who find that grid a bit too cozy, there is the Hexadoku. Also known as "Super Sudoku" or "16x16 Sudoku," this colossal logic puzzle takes everything you love about the original and expands it into a sprawling, 256-cell beast of pure reasoning.

Each time you place that final symbol—often the letter “F” or the number “0” in the last empty cell—you aren’t just finishing a puzzle. You have conquered 256 variables, maintained flawless logic over an hour or more, and exercised your brain to its fullest capacity. hexadoku 16x16 sudoku puzzles to print

| Feature | Standard Sudoku (9x9) | Hexadoku (16x16) | | :--- | :--- | :--- | | | 81 | 256 | | Symbols | 1-9 | 0-9, A-F | | Box Size | 3x3 | 4x4 | | Average Solve Time | 10-20 min | 45-90+ min | | Pencil Marks | Up to 9 per cell | Up to 16 per cell | For most puzzle enthusiasts, the classic 9x9 Sudoku