Seventeen Pieces in three different shapes Designed by Professor John Conway of Cambridge University Difficulty: 10 on scale of 10 3.5&quot;cube Each puzzle is contained in its own wooden box.
(three different shapes; Designed; by Professor John Conway of Cambridge University Difficulty) (Each puzzle; is contained; in its own wooden box)
three different shapes Each puzzle
Designed is contained
by Professor John Conway of Cambridge University Difficulty
in its own wooden box