Sum to 15

Tango and Cash are playing the following game: Each of them chooses a number between 1 and 9 without replacement. The first one to get 3 numbers which sum to 15 wins. Does any of them have a winning strategy?

Place the numbers from 1 to 9 in a 3×3 grid so that they form a magic square. Now the game comes down to a standard TIC-TAC-TOE and it is well-known that it always leads to a draw using optimal strategies by both players.

We do not know where this puzzle originated from. If you have any information, please let us know via email.

Subscribe
Notify of
guest
3 Comments
Newest
Oldest Most Voted
Inline Feedbacks
View All Comments