Triangular Prism Puzzle

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Idea Conceived

Prototype finished


Original concept

Core puzzle



6th April 1983

8th October 1983

October 2009

Tony Fisher


6cm / 2.4 inch edge


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I made this fully functional prototype in 1983 and to this date it is still the only puzzle I have built 100% from scratch. As you can see from the photos it was made from wood. The simple mechanism used nails and after a few days it fell apart. My intention was one day to make a proper version but so far I haven't bothered. I used stickers from a Rubik's Cube just to make it usable. It goes without saying that quality was dreadful. This is perhaps a puzzle I should have kept hidden for ever but I often get asked "what else have you made?" and I guess this answers that. In my defence, remember this was 1983.