The puzzle is to pack the 7 different shapes into the fountain. Originally called the Brunnenpuzzle by its German designer Markus Götz, brunnen translates as…
Double, Triple and Quadruple Multicubes
Consider that the 2×2 is a pretty doable puzzle?
But what if you join 2 of them together? Or 3? Or even 4?
Double, Triple or Quadruple Multicubes can get very challenging very quickly!