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First solution in Clear category for Pawn Brotherhood by shinobi_01
def safe_pawns(pawns: set) -> int:
abc = 'abcdefgh'
num = 0
for item in pawns:
if abc.find(item[0])-1 >= 0:
if abc[abc.find(item[0])-1]+str(int(item[1])-1) in pawns:
num += 1
continue
if abc.find(item[0])+1 < 8:
if abc[abc.find(item[0])+1]+str(int(item[1])-1) in pawns:
num += 1
continue
return num
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
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Nov. 12, 2020
