| Bram Cohen ( @ 2007-12-25 12:24:00 |
Puzzle ring question answer
Times up on my puzzle ring pattern challenge. Nobody gets the cookie.
To refresh, the question was what the pattern/generalization of this design is:
And the answer is that if you chop the pattern up into four quadrants, and the crossings all go the same way within each quadrant, like so:
This can be scaled up or down to any number of bands, for example the classic design is four bands
And it can be chopped into quadrants as well
I also gave the three banded version in a previous post. The five-banded design works as well, but I don't like that as much because it doesn't have a strong canonical position which the bands want to go into like they do with four or six.
Times up on my puzzle ring pattern challenge. Nobody gets the cookie.
To refresh, the question was what the pattern/generalization of this design is:
___ ___ ___ ___ ___ ___ ______
\ / \ / \ / \ / \ / \ /
\ \ \ / / /
___/ \ / \ / \ / \ / \ / \ ___
\ / \ / \ / \ / \ / \ /
\ \ \ / / /
___ / \ / \ / \ / \ / \ / \___
\ / \ / \ / \ / \ / \ /
/ / / \ \ \
___/ \ / \ / \ / \ / \ / \ ___
\ / \ / \ / \ / \ / \ /
/ / / \ \ \
___ / \ / \ / \ / \ / \ / \___
\ / \ / \ / \ / \ / \ /
/ / / \ \ \
___/ \___/ \___/ \___/ \___/ \___/ \______And the answer is that if you chop the pattern up into four quadrants, and the crossings all go the same way within each quadrant, like so:
___ ___ ___ ___| ___ ___ ______
\ / \ / \ / \ / \ / \ /
\ \ \ |/ / /
___/ \ / \ / \ / \ / \ / \ ___
\ / \ / \ /| \ / \ / \ /
\ \ \ | / / /
___ / \ / \ / \| / \ / \ / \___
---\-/---\-/---\-/---\-/---\-/---\-/------
/ / / |\ \ \
___/ \ / \ / \ / \ / \ / \ ___
\ / \ / \ /| \ / \ / \ /
/ / / | \ \ \
___ / \ / \ / \| / \ / \ / \___
\ / \ / \ / \ / \ / \ /
/ / / |\ \ \
___/ \___/ \___/ \___/ \___/ \___/ \______This can be scaled up or down to any number of bands, for example the classic design is four bands
___ ___ ___ ___ ______
\ / \ / \ / \ /
\ \ / /
___/ \ / \ / \ / \ ___
\ / \ / \ / \ /
/ / \ \
___ / \ / \ / \ / \___
\ / \ / \ / \ /
/ / \ \
___/ \___/ \___/ \___/ \______And it can be chopped into quadrants as well
___ ___ ___| ___ ______
\ / \ / \ / \ /
\ \ |/ /
___/ \ / \ / \ / \ ___
------\-/---\-/+--\-/---\-/---
/ / | \ \
___ / \ / \| / \ / \___
\ / \ / \ / \ /
/ / |\ \
___/ \___/ \___/ \___/ \______I also gave the three banded version in a previous post. The five-banded design works as well, but I don't like that as much because it doesn't have a strong canonical position which the bands want to go into like they do with four or six.