Cipher 12: Knot homophonic

This week’s cipher is a (non-invertible!) matrix of knots, which you can view by clicking on the image below:

Click to enlarge

Click to enlarge

When mathematicians originally classified knots, they made the mistake of believing that two knots (10_161 and 10_162 in the original table) were different when they were in fact equivalent. Hopefully you won’t make the same mistake as they did.

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