Revision as of 14:15, 26 October 2021 by 127.0.0.1(talk)(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,...")
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 marked cells must also contain the digits1 to 9.