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First solution in Creative category for Pawn Brotherhood by Buggerman
def safe_pawns(pawns: set) -> int:
coords = [(ord(x), int(y)) for x,y in pawns]
return sum(1 for x,y in coords if (x - 1, y - 1) in coords or (x + 1, y - 1) in coords)
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
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")
July 27, 2021