[nomoi]

Thank you so much, ezdiy, for sharing this and the sourcecode. A PB without a root-shell would have rendered it useless for me and disrespected the freedom of the user. I registered solely for this posting resp. the following questions:

I looked into the source but am unable to understand how it does it precisely. Can someone elaborate or give me some hint, (i) why it does work and (ii) how the solution is found in the first place. It's like a mathematical proof at this point but without description what led to it in the first place. =)

Thanks again and a nice day.

PS. Some hints about literature about this topic i'd admire to.