This is a long & frustrating game @mickeynh but I do have one suggestion (at least it seems to help me!) -- if I have identical cards that can be played -- one showing on the board (where they're all face up) and one showing on top of the turn-over pile, I choose the one off of the turn-over pile figuring that the one on the board will always be there but the ones in the pile get buried quickly & may never be retrievable. Of course, this depends on what type of action using one or the other stirs up so naturally you'd take the one with the better results. Something to consider anyway and good luck! Also, naturally you'll be wanting to get all the aces in place asap.