Alaaddin Mosque

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 20°.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• Contains one regular 9-pointed star polygon with vertex angle of 80°.
• There are four non-regular reflective tiles (including one kite and one dart).
• The tiling satisfies the interlace condition and has one finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 289 polygons.

1. From Tony Lee (Alaaddin Mosque, Konya, Turkey) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1116-1237AD, 509-634AH)
2. vol 2, page 258, Figure 255 (Imam Yahya, Mosul, Iraq) of Friedrich Sarre and Ernst Herzfeld. Archäologische reise im Euphrat..., Berlin, 1911-20. ISBN . [sarre] {}(1239AD, 636AH)
3. Photo via Aslam Qureshi (Mosque, Qadi Yahya, Cairo, Egypt) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1448-9AD, 852-3AH)

• Tilings not constructible by straightedge and compass

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