P & L packing puzzle
1 August 2011Edward Hordern IPP31 Puzzle Exchange – Berlin, Germany. August 2011. 180 made. Presented by Grant Smith. Made by Mr Puzzle Australia. Designed by Junichi Yananose.…

The puzzle is to exchange the positions of the two white knights with the two black knights. The starting positions of each knight are inlaid on the board.
You must stay within the squares on the board and may use ‘Knight’ moves (as in chess) only. It was thought this puzzle was devised in Russia, but recent advice is that its origins are unknown. However, it was adopted and further developed into its current form by Ili Kaufmann in Israel. It was presented by Edward Hordern at the “Gathering for Gardner, Three” in January 1998.
The board is made from Queensland Spotted Gum. The knights are cast from pewter. The bases of the white knights are Queensland Silver Ash and the black knights are Blackbean.