|Other Retailer||Price Checked Time||Their Price in AUD||Our Price|
|Amazon UK||2 days ago||29.02||$15.82||You save $13.20|
|Amazon US||1 days ago||17.33||$15.82||You save $1.51|
A physicist and concert pianist who resides in Oxford, England, Christopher Maslanka specializes in puzzles and problem-solving. He has written a puzzle page for London's Guardian newspaper for many years and hosted the BBC program, "Puzzle Panel."