Because maths is more fun in the bedroom..

The popular game, Sudoku, is now also a sex game! Form a SudoFUKu puzzle with the numbers 1-9 and then flip over tiles two at a time.
When you reveal a sex position, act it out!
The game includes 81 double-sided number/sex
position tiles, a standard Sudoku board and rules of
Sudoku and SudoFUKu.