One line sum any creative solution for Pawn Brotherhood by lezeroq - python coding challenges

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One line sum any solution in Creative category for Pawn Brotherhood by lezeroq

def safe_pawns(pawns):
    return sum(any(''.join((chr(ord(p[0])+i), str(int(p[1])-1))) in pawns for i in (-1, 1)) for p in pawns)

if __name__ == '__main__':
    #These "asserts" using only for self-checking and not necessary for auto-testing
    assert safe_pawns({"b4", "d4", "f4", "c3", "e3", "g5", "d2"}) == 6
    assert safe_pawns({"b4", "c4", "d4", "e4", "f4", "g4", "e5"}) == 1

May 4, 2015

Look up in the Dict()

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