It is a little game that is a little more complex than tic-tac-toe but a lot less complex then chess. If it is one Players turn you can go one straight or take a piece from the other player diagonaly. One player wins if one piece reaches the other players side, took all the pieces from the other players or the other player cannot do any valid move.

It is a very easy and small print and you can put magnets on the bord and the pieces, you will need 15 6x3 magnets in total.