Hexadoku 16x16 Sudoku Puzzles To Print ~upd~ -

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 ).

16x16 Sudoku: 150 Easy, Medium, & Hard Sudoku Puzzles - Amazon.com hexadoku 16x16 sudoku puzzles to print

For those who want a curated collection, you can find physical books like 50 Giant 16x16 Sudoku Puzzles on Amazon. In a standard 9x9 Sudoku, the sum of a row is 45