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Puzzle Shatranj. Shatranj on a 15 puzzle. (8x8, Cells: 60) [All Comments] [Add Comment or Rating]
J Andrew Lipscomb wrote on Mon, Dec 21, 2009 06:46 PM UTC:
You only have 15 pieces, so 'at-least-one' implies 'exactly-one.'

On the commentary, a piece with eight bindings is thrice colorbound, not four times (which would mean full coverage requires sixteen). At the fourth order, it is switching (as the Ferz is at the second order and the Knight at the first).