Hi everyone. Apologies for the delay in producing the June problems and also in responding to those of you who have sent in solutions to the May problems. I’ve had a few unexpected events chew up rather large blocks of my time. However, here at least are the June problems, and the April solutions for you.
From this month forward, the monthly problems will be a selection of problems used in previous sets of “September problems”. This month, it’s four of the easiest problems from 2006.
Hello everyone. Here are the May problems, and the March solutions. Have fun, and keep those solutions coming in!
Hello everyone. Here are the April problems, and also the February solutions. Have fun, and keep those solutions coming!
Hello everyone. Here are the March Problems, and also the January Solutions. Have fun, and keep those solutions coming!
Update, 3rd March 2009: a typo in Problem four has been corrected – the problem should read “a sequence of 1000 consecutive integers”.
The February problemsare an easy set of problems, aimed mainly at students who are only just entering the arena of “Olympiad style” problem solving. However, they will still be good practice for those who intend to do the September problems. As the months progress, problems in this series will gradually get more difficult.
Unusually, solutions to these problem sets will actually be posted, typically with a two month delay. However, as usual, solutions can be obtained at any time by sending an email providing evidence of some serious attempt to do the problems.