Jim Bumgardner’s puzzle site is a cult classic. His Hexadoku puzzles are known for being "elegantly difficult." They often feature symmetrical patterns and a unique aesthetic. He provides a weekly PDF of five puzzles.
Hexadoku offers several benefits, including: hexadoku 16x16 sudoku puzzles to print
Hexadoku, also known as 16x16 or Hexadecimal Sudoku, is a supersized version of the classic 9x9 game that uses a grid divided into Jim Bumgardner’s puzzle site is a cult classic
In a standard 9x9 Sudoku, the sum of a row is 45. In a 1-16 Hexadoku, the sum of every row, column, and block must be 136 . This can help you identify missing numbers in nearly-finished regions (similar to the 45 rule in Killer Sudoku ). Below are four printable 16×16 Hexadoku puzzles (increasing
Below are four printable 16×16 Hexadoku puzzles (increasing difficulty: Easy → Hard → Expert → Puzzle of the Week). Symbols: use digits 1–9 and letters A–G to represent values 1–16. Each 16×16 grid is divided into sixteen 4×4 blocks; fill so every row, column, and 4×4 block contains each symbol exactly once.