Tic Tac Toe Nygaards
A Numerical Tic-Tac-Toe based on P.H. Nygaard’s idea.
A player can place with odd numbers (1,3,5,7,9) and even numbers (2,4,6,8).
A player win the game by completing a line (including diagonal) of 15 of same parity (i.e. all odds or all evens)