2. the construction only works for n mod 4 = 1. If n mod 4 = 3, then the number of red grids in claim 2 and 3 are the same. let me think what to do in this case...
two comments...
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1. the proof of claim 2 is correct but incomplete. the border grids need to be discussed separately.
2. the construction only works for n mod 4 = 1. If n mod 4 = 3, then the number of red grids in claim 2 and 3 are the same. let me think what to do in this case...
2. the construction only works for n mod 4 = 1. If n mod 4 = 3, then the number of red grids in claim 2 and 3 are the same. let me think what to do in this case...
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• one more comment -dynamic- ♂ (1066 bytes) () 04/25/2009 postreply 03:02:49