OK, here's a challenge for a budding perl programmer...

Given a 4x4 grid (i.e. 16 squares) that represent a bingo card, and given that you can win with a row in any direction or diagonal, the 4 corners, or ultimately with "BINGO" - all 16 squares, what is the minimum number of numbers you need to guarantee the following things:

1. Each card can win

2. Each card is unique (discounting ordering)

For extra kudos, generate the cards (ascii art is fine).

(note this isn't a college question - I'm trying to do this myself too (and other monks can confirm I'm no a student) - I was just curious as to what other solutions people come up with)

In reply to Bingo Challenge by Matts

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