Gamepuzzles Annual Polyomino
Excellence Award for 2015 —
"Untouchable 11" cube-fold hexominoes



In 2005, Kadon established a special annual award to be presented to the individual or organization that created the best new pentomino or polyomino idea of the year. Each award is a unique custom design.

For the year 2015, the award went to two collaborators, Carl Hoff and Peter Grabarchuk, for their "Untouchable 11" design. There are 11 hexominoes whose shape can be folded into a cube. The challenge Carl and Peter worked out was to fit all 11 into snug rectangles with no contact between the pieces, not even at their corners.

Peter has programmed these challenges so you can try them yourself right online.

Their prize consisted of the 11 hexominoes arranged in symmetrical pairs and forming a tower (shown above), with the C and P pentomino added to represent the winners' initials. The plaque displays the title of the award.

As a humorous antithesis, their award included a bonus challenge: Scrunchable 11 — to find the smallest space into which all 11 pieces can fit when stacked. Here's that addendum:

A formal certificate accompanied the award:




Awards we bestow

2017 Kadon Enterprises, Inc.