At this point, a heartfelt “thank you” to Dan Q – and of course everyone else – who helps out here to be able to care more about tupperware than staring at ugly holiday photo pieces.
I’m not that into coding, but the debugger no shuffle method thingy works for me fine – except when I’m to lazy and not moving enough pieces from the sack before putting them together. lLet’s see if a minimum click rate can be determined – for now I’m down to13 min fpr 400pc – which is still okayish – for an unknwon type puzzle (still it’s annoying, that it is soooo repetitive).

So once again DANQU! (pun intended)
flipso