Tejas and Anton, great job on problems 1 and 3! You have both received 10 points for those, but you have a slight error in problem 2. Here is what you need to work on:
1. Although you have identified a possible maximum configuration, you never showed that that was the best one.
2. How do you know that any other configuration doesn’t allow more bishops?
Think about counting this in a clever way that is guaranteed to give you the maximum. But great job nonetheless!