JZ Mock Set C is ready
Set C is now up, I have also adjusted a few questions in sets A and B after further reviews. My mock papers are generally more difficult, as I believe for practice purposes, you are better served with more demanding questions. However, my design philosophy is that difficulty comes not from increased calculations or brute force work, but in ways of thinking, traps, misdirections, all of which, are supposed to be logical. Overcoming these, should in principle, improve your logical thinking.