Because of this, time is sometimes an issue. You are never far from my mind. The address is pen.k12.va.us. Choose option 7 until you reach the Problem Solving Corner. The same, or similar, problems will be found there, and that version will also have a similar set-up.
Participation is open to any student in Virginia, either on an individual or team basis.
I only ask that you do not submit them to me once the school year starts, and during this school year. They capture student interest and imagination. The solution is not immediately obvious. The problem can be solved using more than one strategy. The problem is within the computational skill level of the student.