If you haven’t played it yet, Perfect Paths is a brilliant iOS puzzle solving game.
As you’d expect the levels get harder as you go along, but they feel JUST about the right difficulty to stop you throwing your phone out of the window.
If you are stuck, I’ve posted my solutions below – I’d really recommend keeping going, but if you’ve just about had enough, I hope these help.
I’m sure someone has more efficient methods somewhere, but they will certainly allow you to progress. Levels: (Click on an image for a larger version)
I will upload the solutions for Columba 3 & 4 as soon as I have worked them out!