Yes, apart from a couple of intermediate cases. In hindsight, the easy questions were where I already knew, or worked out, the construction technique for the question, the impossible ones were where I didn’t spot what was going on, and the intermediates were where I knew the technique but the application was complicated and took a while to deduce.
Yes, apart from a couple of intermediate cases. In hindsight, the easy questions were where I already knew, or worked out, the construction technique for the question, the impossible ones were where I didn’t spot what was going on, and the intermediates were where I knew the technique but the application was complicated and took a while to deduce.