[pxx]

I don't know how much they "stand out" because their frequency makes it so that the optimal global leaderboard strat is often to just try something dumb and see if you win input roulette.

if we just look at the last three puzzles: day 23 last year, for example, admitted the greedy solution but only for some inputs. greedy clearly shouldn't work (shuffling the vertices in a file that admits it causes it to fail).