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chansuke/count_pawn

Created August 22, 2014 22:30
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simple solution for CheckiO - "Pawn Brotherhood"
Raw
count_pawn
safe_pawns=lambda s:sum(chr(ord(i[0])-1) + str(int(i[1])-1)in s or chr(ord(i[0])+1) + str(int(i[1])-1)in s for i in s)
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