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First solution in Uncategorized category for Pawn Brotherhood by Moff
def safe_pawns(pawns):
result = 0
for pawn in pawns:
col, row = pawn[0], int(pawn[1]) - 1
if '{}{}'.format(chr(ord(col) - 1), row) in pawns or \
'{}{}'.format(chr(ord(col) + 1), row) in pawns:
result += 1
return result
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
July 16, 2015