Rätsel und Puzzles
Nr. 146
Regeln:
...
Rules:
Build an octagon with all of its vertices on the nodes of a square grid and with
its sides alternating between a single cell side and a cell diagonal. How many
different such octagons exist?
Figures which differ only in rotation or reflection count as equal.
| Autor: | Viacheslav Kabanovich und Olga Leontieva |
| Quelle: | http://diogen.h1.ru/ (nicht mehr online) |
| Rätsel: | Internet-Wettbewerb 2005, Runde 4, Nr. 6, "How Many Figures" |
| Lizenz: | Freundliche Genehmigung des Autors |