Congratulations to Amari, Ssinjin, Nanoush, Luca, Jeremy, Charlotte, Alistair, of the 3rd grade and Sam, Hazel, and Beau of the 4th grades. The winning strategy is go first, take three, and leave your opponent with 8 counters. Then if they remove either 1 or 2, leave them with 5 counters. If they remove more than 2, you can take all of the remaining counters.