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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.

  Submitted by brianjn    
No Rating
Solution: (Hide)
In some instances it is irrelevant as to which "tumbler" moves first. Where one is offered such a choice the following notation:
|x|
|y| indicates that either may be the first of a pair to move.

I note 2 general solutions but there is another requiring "7" to be moved twice and thus is not as efficient as either of the following:
 |1|     |6|        |8|
 |2|  5  |K|  4  7  |9|  K  5  3  10  K

 |1|           |6|  |8|
 |2|  5  K  4  |7|  |9|  K  5  3  10  K

One could legitimately consider the possibility of moving the [1,2], [6,7] and [8,9] in unison when they present as an option if such a mechanism existed in the real world.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: No solution yet? Spoiler alert...Charlie2008-12-22 14:51:14
SolutionNo solution yet? Spoiler alert...Terrato2008-12-22 05:13:20
re(4): Any mistake? (possible spoiler) - I forgot the 6pcbouhid2008-12-20 16:07:32
re(3): Any mistake? (possible spoiler) - I forgot the 6Charlie2008-12-20 13:21:28
re(2): Any mistake? (possible spoiler) - I forgot the 6pcbouhid2008-12-20 08:28:31
Worriedbrianjn2008-12-20 06:04:32
re(2): Any mistake? (possible spoiler)Daniel2008-12-20 03:30:44
re: Any mistake? (possible spoiler)Charlie2008-12-19 17:59:31
re: Any mistake? (possible spoiler)Elisabeth2008-12-19 17:47:45
SolutionAny mistake? (possible spoiler)pcbouhid2008-12-19 14:50:12
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