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I believe field for this should be Combinatorics? Qetuth (talk) 11:45, 18 December 2011 (UTC)
16 pieces edit
I counted 16 pieces in the page image, not 15. 7 on the top including the tetrahedron, and 9 on the bottom. 71.220.131.112 (talk) 02:29, 8 October 2022 (UTC)
- Never mind, I made a mistake. Can I delete that? 71.220.131.112 (talk) 02:30, 8 October 2022 (UTC)