Mirrored from Sudopedia, the Free Sudoku Reference Guide
A pattern is symmetrical when the same pattern can be formed by reflection or rotation.
A Sudoku is symmetrical when the pattern formed by the givens is symmetrical.
A Killer Sudoku is symmetrical when the cage pattern is symmetrical.
A Jigsaw Sudoku is symmetrical when both the givens and the nonets are symmetrical.
This page was last modified 10:51, 16 November 2006.