In Hexadoku, the game is played on a 16x16 grid, divided into 16 4x4 regions. The puzzle consists of some numbers already filled in, while others are blank. The objective remains the same: fill in the missing numbers from 1 to 16, making sure that each row, column, and region contains each number only once.
: Offers thousands of free hexadecimal Sudoku puzzles organized into 100 printable booklets per volume. Puzzles are available in both hexadecimal (0–F) and decimal (1–16) formats. hexadoku 16x16 sudoku puzzles to print