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 Post subject: Flaw in Oskar's treasure chest puzzle
PostPosted: Wed May 23, 2012 11:09 am 
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Joined: Wed Jan 14, 2009 6:37 pm
Location: The Great White North
I just received my Oskar's treasure chest + jewel from Meffert's. It's a pretty cool concept... though I found a flaw: you don't have to solve the entire puzzle to open the box, just the top two layers. Is this intentional, or was it an oversight? :) I proved this by doing a 3-corner cycle on the bottom layer, and it still opened no problem. Same with a 3-edge cycle. Upon closer inspection, it's obvious that locking mechanism is only keyed to the top two layers.

Here's a challenge for you geniuses out there: can you modify/extend the existing mechanism so that it does depend on all 3 layers?


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 Post subject: Re: Flaw in Oskar's treasure chest puzzle
PostPosted: Wed May 23, 2012 11:11 am 
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Joined: Sun Mar 27, 2005 7:37 pm
This is well known. You can simply impose your own rule that it has to be solved.

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 Post subject: Re: Flaw in Oskar's treasure chest puzzle
PostPosted: Wed May 23, 2012 11:23 am 
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Joined: Mon Mar 22, 2010 7:00 am
Location: Germany, Siegerland
I think that one of the solutions to make all 3 layers work in the locking mechanism is to make the 4 middle-layer edges parts of the cover.

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 Post subject: Re: Flaw in Oskar's treasure chest puzzle
PostPosted: Thu May 24, 2012 11:31 am 
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You actually don't even have to solve the two top layers... try doing: RL' D2 R'L

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 Post subject: Re: Flaw in Oskar's treasure chest puzzle
PostPosted: Sat May 26, 2012 2:18 am 
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Joined: Thu Oct 16, 2008 9:46 pm
Location: Littleton CO
RubixFreakGreg wrote:
You actually don't even have to solve the two top layers... try doing: RL' D2 R'L

This may be getting off topic a bit, but I may have thought of a solution. As far as I know there a notches in the center layer that align with the holes in the top layer. Could you change the shape/size of the pieces that stick out so, say the wrg corner only opens on the rg edge. I hope this made sense, it’s rather late.


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