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633 points jihadjihad | 2 comments | 02 Apr 25 15:35 UTC | HN request time: 0s | source

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curiousObject ◴[02 Apr 25 16:26 UTC] No.43558431[source]▶

>>43557873 (OP) #

Interesting.

What animals cannot be accurately depicted with 13 circles?

replies(6): >>43558621 #>>43558631 #>>43558633 #>>43558843 #>>43558855 #>>43569449 #

1. trieloff ◴[02 Apr 25 16:45 UTC] No.43558633[source]▶

>>43558431 #

Pelican on a bicycle

replies(1): >>43560049 #

2. addaon ◴[02 Apr 25 18:47 UTC] No.43560049[source]▶

>>43558633 (TP) #

More generally, any animal that cannot be drawn in 12 circles cannot be drawn in 13 circles when riding a bicycle. By recursion, no animal can be drawn when riding a stack of seven bicycles.

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Animals Made from 13 Circles (2016)