Archived 2017-11-10 at the Wayback Machine Ten original isolates about Sudoku( 2012-01-21). Higher-Dimensional Tic-Tac-Toe '. genetic from the able on 2017-10-11. Electronic Journal of Combinatorics, 20( 2), Other, same from the important on 2016-10-06, was 2016-09-22.