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Locksmith (Posted on 2008-12-19) Difficulty: 2 of 5
K, the Key, is to be moved to contact L, the Latch, so as to move it totally into the grey area.

Locked
K L
Open

L

1 3
2 8 9 10
K 5 L
4 6 11
7


The object again is to move K to dislodged L. The "tumblers", the numbered blocks, are only to slide in the direction of their respective lengths.

How might you accomplish this?

Note: the black areas are void space.

See The Solution Submitted by brianjn    
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re: Any mistake? (possible spoiler) | Comment 3 of 10 |
(In reply to Any mistake? (possible spoiler) by pcbouhid)

But 8 and 9 can't move down without 6 moving out of the way (or 3 moving out of the way if the proposed direction is up). 6 can't move far enough to allow 8 and 9 to move down far enough for K to move.
  Posted by Charlie on 2008-12-19 17:59:31

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