2^(2n-2) * 6

If any one row or one column is fixed, the whole board is fixed.

所有跟帖： 

• 2^(2n-4) * 6 -屋漏痕- ♂ (0 bytes) () 07/16/2009 postreply 11:00:14

• 应该没有那么多 -康MM- ♀ (0 bytes) () 07/17/2009 postreply 17:21:14

• Agree -屋漏痕- ♂ (527 bytes) () 07/20/2009 postreply 05:09:52