The popular official KenKen game. For the 4×4, answers only consist of the numbers 1 to 4. For the 6×6 grid, answers can only be the digits 1 to 6, and so on. No digits can be repeated in any row or column. Solve each cage (outlined group of boxes) so that the digits equal the target number using the math operator supplied. For example a cage in a 4×4 grid with two cells that has the equation “1-” can be solved by either: 4, 3; 3, 4; 3, 2; or 2, 3.