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First solution in Clear category for Pawn Brotherhood by avalon3515
def safe_pawns(pawns):
sum=0
for a in pawns:
if chr(ord(a[0])-1)+str(int(a[1])-1) in pawns or chr(ord(a[0])+1)+str(int(a[1])-1) in pawns:
sum+=1
return sum
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
March 10, 2015
