Thank you! There are ~18 distinct puzzle types at the moment, and some have 3-4 variations - eg the midpoint one can be a straight line, an arc, or a combination like today's. It keep things pretty fresh, as it can be 3-4 days before the same type comes up again (with the exception of Set The Angle, which is every day).
I often wonder if I'll run out of ideas, but inspiration appears from nowhere and suddenly I've got 2-3 types more to try out. That said, there are quite a few ideas that have gone in the bin - it's surprising what the human mind can do effortlessly, or not at all - it can be very hard to find the right balance of difficulty or intuition. At the moment I'm adding 1-2 new types a week; I'm sure that'll slow down eventually.
I often wonder if I'll run out of ideas, but inspiration appears from nowhere and suddenly I've got 2-3 types more to try out. That said, there are quite a few ideas that have gone in the bin - it's surprising what the human mind can do effortlessly, or not at all - it can be very hard to find the right balance of difficulty or intuition. At the moment I'm adding 1-2 new types a week; I'm sure that'll slow down eventually.