How many rectangles are there? (it's my first 100% pen project, so that's why it's so simple-looking - please support me, not criticise me!) Don't post the answer in the comments. You are ruining the fun for everyone. You can post how much time and tries it took you in the comments.
I hope I get a high rank in the contest! Again, this is my first ever 100% pen project, so please have that in mind when you play!
