Archive for October, 2019

October Problems of the Month

Congratulations to September’s supremely successful solvers: Filip Belik, Luke Haddorff, Tom LoFaro, James Wittrig, and Katherine Williams. October’s Problem #1 is just a game of Xs and Os: Imagine that the following list of three 7-letter words is made from tiles with X on one side, and O on the other side:   OOOXXXX XXOXOOX […]