This month requires a little thinking. It's puzzle time.

saponga says:

Everyone that loves GNU/linux (either beeing a coder or not), likes to solve puzzles. Because the flexible nature of the OS you need try a lot before get something done the exact way you want it. So, i'd like to see what kind of puzzles you guys like to play with. Everything counts: toys, games, crosswords, a bug, even a chess movement... You name it. As usual, feel free to depict the theme as wide as your imagination gets. And please, forgive my terrible english. Hope you've got the idea.

As usual, the rules are:
Photos must be taken during this month
Photos must be taken by the posting member
Photos must be taken with a camera phone
Users post only one photo per entry
Users can change the entry only once
Users must name the phone they used
(so I could include it for voting)
Last three days of this month are for voting

Please don't forget to name the phone you used to shoot the photo with because I need to include it in the voting thread!

Last month's theme.

Happy shooting.