Revision as of 02:22, 1 June 2020 by Rooted(talk | contribs)(Created page with "'''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 puz...")
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 digits1 to 9.