Edward Hordern IPP Puzzle Exchange - Washington DC, August 2012
Presented by Laurie Brokenshire. Made by Václav Obšivač. Designed by Václav Obšivač.
Difficulty 5+/5 on Vinco's scale.
You may try 3 (Tri) challenges using the mathematically complete set of 4 different woods on each of 6 pieces which look a bit like bicycle wheels.
1. Uni-Cycle. Simply form a cube (not too difficult)
2. Bi-Cycle. Each corner of the cube must be one single colour (a bit trickier)
3. Tri-Cycle. The cube must have no identical colour touching anywhere, not even diagonally or on an edge (a lot more though required to do this one)
Size: 80mm x 80mm x 80mm
Vinco collects many trees in his local area to create these puzzles including acacia, ash, beech, cherry, elm, larch, maple, oak, pear, plum and walnut. Timber variety may vary from puzzle to puzzle unless otherwise specified. The puzzles are unsealed showcasing the natural colour and texture of the timber.
A printed solution to challenges 2 & 3 is inside the box.