Using standard Algebraic notation ('' for a pawn), given previous move and a next move, output true if it is a valid move or false otherwise. Assume there are no other pieces on the chess board, that the piece can be either black or white (whichever generates a valid result) and the previous move was valid. Examples:
Moving a pawn one space:
('c5','c6') -> true
Moving a bishop non-diagonally:
('Bb7','Bd7') -> false
Hard !
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)
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Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
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