4
8
9
2
6
9
3
8
1
6
7
6
3
8
1
4
8
9
2
4
3
6
9
7
3
9
1
6
5
2
1
8
3
"Somewhere, something incredible is waiting to be known." — Carl Sagan
"Somewhere, something incredible is waiting to be known." — Carl Sagan
There is a 'Sudoku variant' called Samurai Sudoku, consisting of five overlapping 9×9 grids sharing corner boxes.
There is a 'Sudoku variant' called Samurai Sudoku, consisting of five overlapping 9×9 grids sharing corner boxes.