Mirrored from Sudopedia, the Free Sudoku Reference Guide

Center Dot

Center Dot a variant of Sudoku with an extra constraint. Specifically, the center cells of all the boxes is also a house. That is, in the example puzzle below, the blue cells must also contain the digits 1 to 9.

image:Centerdot.png

See also

This page was last modified 17:18, 2 January 2008.