Difficult Sudoku-8-X Group Puzzle | ||
|
| ||
| Permission is granted to teachers in grades K-12 to print and photocopy these puzzles for use in their classes. Permission is also granted for individuals to print for personal use. All other rights are reserved. | ||
Place each element of the group (1 2 3 4 5 6 7 8) exactly once in each row, each column, each 4x2 rectangle, and each diagonal.