Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
First solution in Clear category for Pawn Brotherhood by eugenga
def safe_pawns(pawns: set) -> int:
result = 0
for pawn in pawns:
row, line = pawn[0], int(pawn[1])
# which square can protect this pawn
protector_1 = chr(ord(row)-1) + str(line-1)
protector_2 = chr(ord(row)+1) + str(line-1)
if protector_1 in pawns or protector_2 in pawns:
# protected
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
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")
Sept. 7, 2019
