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First solution in Clear category for Pawn Brotherhood by defensor
def safe_pawns(pawns: set) -> int:
return len([i for i in pawns
if chr(ord(i[0])+1) + chr(ord(i[1])-1) in pawns or
chr(ord(i[0])-1) + chr(ord(i[1])-1) in pawns])
if __name__ == '__main__':
print(safe_pawns({"b4", "d4", "f4", "c3", "e3", "g5", "d2"}))
#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
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")
June 24, 2021
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