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First solution in Clear category for Pawn Brotherhood by karolk10
def safe_pawns(pawns):
pawns = list(pawns)
cou = 0
j = 0
for i in range(len(pawns)):
ki = ord(pawns[i][0]) - 96
wi = int(pawns[i][1])
while j < len(pawns):
kj = ord(pawns[j][0]) - 96
wj = int(pawns[j][1])
if wi == wj + 1 and (ki == kj + 1 or ki == kj - 1):
cou = cou + 1
j = len(pawns)
j = j + 1
j = 0
return cou
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
Nov. 15, 2016