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First solution in Clear category for Pawn Brotherhood by SnakeInTheLake
def safe_pawns(pawns: set) -> int:
safe = 0
for coord in pawns:
if coord[1] == '1':
continue
if chr(ord(coord[0]) - 1) + str((int(coord[1]) - 1)) in pawns \
or chr(ord(coord[0]) + 1) + str((int(coord[1]) - 1)) in pawns:
safe += 1
return safe
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!")
May 28, 2019