Ohh haha. Well in that case it's hard to give a hint that doesn't just give away the solution... maybe try to understand from which pillar positions you can climb the left wall, and from which ones you can't. Then eliminate the ones that aren't gonna get you further. Sorry if that's of no help, if you're completely stuck I can also just give you the solution. It does require a technique that was used once before this puzzle, so it could help backtracking a bit.