2.2.3 - Cell Door Lock
======================

Hints:
You're trying to swap the position of the circular and triangular pieces.
Easy.

Objects Needed:
None

Solution:
As with the last puzzle, it's easier to just mess around until you solve it
than it is to explain it.  But this wouldn't be much of a walkthrough unless
I explained it for any who become stuck.

I'll write this with abbreviations.

R = Right
M = Middle
L = Left
U = Up/upper
D = Down/bottom
C = Circle piece
T = Triangular Piece

If I say RCR, I mean to move currently rightmost circular piece right one
space.

RCD, LTL, RTR, MTR, RCR, RCR, MCR, MCD, MCR, LCR, LCR, LCD, LTL, LTL, LTL,
LTL, MCL, UCL, UCL, RCL, RCL, TCL, MTL, MTL, MTL, RCR, RCR, MCR, MCR, LCR,
LCR, MTL, MTL, MTL, LCL, LCL, MCD, MCL, RCL, RCD, RTL, RTL, RTL, RTL, RCR,
RCR, RCR, MCR, MCR, MCR, LCR, LCR, LCR, RTL, MTR, LTR.

That might be a step or two off (if I say to move a piece and you're not
quite positive of which, move the LAST piece in the newly listed direction),
but once you get the basic idea you should be able to do it.

When they're in position, press the yellow button at the top middle to open
the lock.

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You'll have access to a new puzzle in the main hall now.