Mathematics & Computer Science at Wesleyan

The annual William Lowell Putnam Mathematics Exam will be held Saturday, Dec. 1, 2012. Everyone is welcome to participate in the exam, or to attend one of the problem solving practice sessions (Math 211) that will meet 7:10-8:30 p.m. on 9/13, 9/27, 10/4, 10/25, 11/8, 11/15 and 11/29. If you are interested, contact Prof. Karen Collins (kcollins@wesleyan.edu). Here is a question to intrigue you: Forty-one rooks are placed on a 10 x 10 chessboard. Prove that you can choose five of them that do not attack each other. (Two rooks attack each other if they are in the same row or column.)