I’ve stopped even attempting any puzzle that takes them more than 30 mins to solve.
Mark is a pain for solving through “feed-forward” though, which is tantamount to bifurcation in my book. One of my favourite solves though was one where he’d gone down that route and I’d bloody-mindedly refused to, spending another eight hours or so finding a logical solution.
(, Sat 6 Mar 2021, 17:59, Reply)