Difficulty: Medium, Pre-Hard.
This map for skilled Portal players.
Passing: http://www.youtube.com/watch?v=plJm2-ItL0o
Second map: Brainteaser v2.0
Third map: Brainteaser v3.0

Click here to download Brainteaser v1.0

Click here to download Brainteaser v1.0

very laggy due to the high amount of lasers. Try to change the rooms a bit so there's a 90 degrees turn between each new room with a laser, that should improve the performance a bit.

Awesomefully designed map! It was really well thought out and fun to play all the way through, thanks!

This was quite a challenge. It took a while before I realized how to hit that catcher high up on the wall. But it took me quite a bit more time before I realized how to hit that laser catcher and then get out of that room and back to the final room.

Unlike Brainteaser 2, this one requires no use of game glitches.
EXCELLENT !!!