Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
2-liner solution in Creative category for Pawn Brotherhood by Stensen
def safe_pawns(ps):
p_indexes = set([(int(p[1])-1, ord(p[0])-97) for p in ps])
return sum([1 for r, c in p_indexes if (r-1, c-1) in p_indexes or (r-1, c+1) in p_indexes])
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. 21, 2020
Comments:
