From Daan
Revision as of 23:12, 7 November 2012 by MeesterDaan (talk | contribs)
Hoezee
simple swap
Two solutions are related by a 'simple swap' if all tiles are identical, apart from two tiles forming a rectangle, appearing in reverse order.
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compound swap
Solutions are related by a 'compound swap' if all tiles are identical, apart from a number of two forming a rectangle, appearing in reverse order.
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