After "Try-bal" and "Bi-Cycle", 2012 naturally melds into the "Try-Cycle" Puzzle that I'm peddling... You may Try 3 (Tri) challenges using teh mathematically complete set of "Cycles" (of the 4 different woods on 6 four-spoked pieces - 3 bicycles/2 tricycles would have 6 wheels!).
Uni-Cycle: Simply form a cube (easy)
Bi-Cycle: Each corner of the cube must be one single colour (trickier)
Try-Cycle: The cube must have no identical colour touching anywhere (no even diagonally or on an edge - a little more thought required...)
Having Cycled here from Anchorage, Ethel and I hope you will "Try-Cycle"-ing and enjoy the co-ordinated motion (and no flats)!
- Laurie Brokenshire