This is a good problem, but it needs more test cases. There is no test with the King for instance, and there should be a true and false state test for every piece.
this doesn't take into account captures or moving a pawn 2 moves from its starting position. should it?
and the occasional other weird rules...
Captures and pawn 2 moves and castling and such aren't possible based upon the assumptions I stated (i.e. no other pieces on the board, the previous move was valid, etc)
Make the vector [1 2 3 4 5 6 7 8 9 10]
Getting the indices from a vector
Permute diagonal and antidiagonal
Relative ratio of "1" in binary number
Back to basics 26 - Keywords
Back to basics 17 - white space
Convert Roman to Arabic Numerals
Back to basics 11 - Max Integer
2 b | ~ 2 b
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