Hello,

I would like to present my puzzle "Узоры" (Traceries). The idea of this
puzzle was described in Russian magazine "Наука и жизнь" (Science and life)
N 5, 1976. This puzzle is like traditional "15" puzzle, but it contains
16 items, and bottom slider can be moved. It allows you to compose any
tracery which you can imagine. Some of them are attached. Enjoy!

Best regards,
Vladimir Yaroslavskiy

Здорово!
Cool!

Another example that an artistic + mathematical theme can make a big difference
to the appearance and elegance of a puzzle!

Excellent implementation!




Pantazis