Here's my guess:
Move 9 blocks to fill in the water and obtain the red key.
Use key to open red door and portal to pick up 20 chips in the sand surrounded by invisible walls.
Open socket and portal down, then portal left and read hint (-1).
Trigger tanks twice at correct time to allow flame to toggle walls.
Portal to finish.
(9+20-1)*2=56
How's this? 56, The number of designers who submitted levels for CCLP1 voting.
or this based on similar movements:
(9+20)*2= 58-1= 57 Same reason as above. Is that number even correct? How many were there?
Edit: I just watched my solution and noticed I had to toggle the tanks 3 times. so my answer would be:
(9+20)*(3-1)=58 Same reason as above.
Move 9 blocks to fill in the water and obtain the red key.
Use key to open red door and portal to pick up 20 chips in the sand surrounded by invisible walls.
Open socket and portal down, then portal left and read hint (-1).
Trigger tanks twice at correct time to allow flame to toggle walls.
Portal to finish.
(9+20-1)*2=56
How's this? 56, The number of designers who submitted levels for CCLP1 voting.
or this based on similar movements:
(9+20)*2= 58-1= 57 Same reason as above. Is that number even correct? How many were there?
Edit: I just watched my solution and noticed I had to toggle the tanks 3 times. so my answer would be:
(9+20)*(3-1)=58 Same reason as above.