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First solution in Clear category for Pawn Brotherhood by werepire
def safe_pawns(pawns):
safep=0
for a in pawns:
row=int(a[1])
col=ord(a[0])
row1=row-1
col1=ord(a[0])-1
col2=ord(a[0])+1
paw1=(chr(col1))+str(row1)
paw2=chr(col2)+str(row1)
if paw1 in pawns or paw2 in pawns:
safep=safep+1
return safep
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
Oct. 19, 2016