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Cogwheels Puzzle #81 by Maarten
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chaydov



Joined: 05/05/2008 07:26:48
Messages: 20
Location: USA
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Number: Puzzle #81
Genre: Cogwheels
Author: Maarten
Appeared at: January 10, 2007

It seems to me there is another correct solution to this puzzle.

In 6th row, move gear from column 2 to column 3.
In 8th row, move gear from column 3 to column 2.

All gears remain attached and not overlapping and number requirements are fulfilled.

Is this correct or is there something I am not seeing

Chaydov
zulio



Joined: 04/03/2008 10:05:16
Messages: 11
Location: Rome
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You're missing this: two cogwheels are connected only if the central squares of their sides are adjacent.

So the big 5x5 cog is not connected with the small one in the 4th row; if you remove the small cog in the 6th row, you'll have two separate groups of cogs, thus making your solution incorrect.

(Hope my English is correct... )

zulio
chaydov



Joined: 05/05/2008 07:26:48
Messages: 20
Location: USA
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Your English is perfect.

I had to study the diagram to understand, now it makes sense to me! I hadn't realized cogs have to connect at midpoint of sides in order to be connected. This will help me with other puzzles.

Thanks so much for taking time to explain it!

Chaydov
xevs



Joined: 12/05/2010 14:38:50
Messages: 31
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Nice disguising! I like this.
 
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