@Toadofsky: I'd be interested to hear what you have in mind :)
i read that link before, and i was pretty impressed. i figure it should work, however, practice says that it has not really been working for all puzzles, for some reason. maybe it's mostly the search depth's fault for these cases?
1,
This puzzle was a bit deeply analyzed by RealKool, and the solution of Lichess is correct.
http://en.lichess.org/qa/1020/puzzle-44727-2151--is-wrong-answered