http://olympiad.cs.uct.ac.za/old/saco2007/day1_2007_solutions.pdf Can someone please explain how the formula for the 4th problem (The Knights Who Say Ni) was derived.
Knight Distance formula
http://olympiad.cs.uct.ac.za/old/saco2007/day1_2007_solutions.pdf Can someone please explain how the formula for the 4th problem (The Knights Who Say Ni) was derived.
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