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Simple solution in Clear category for Pawn Brotherhood by Krischtopp
def safe_pawns(pawns):
safe_pos = []
for pawn in pawns:
safe_pos.append(chr(ord(pawn[0]) - 1) + chr(ord(pawn[1]) + 1)) #Left capture
safe_pos.append(chr(ord(pawn[0]) + 1) + chr(ord(pawn[1]) + 1)) #Right capture
return len([pawn for pawn in pawns if pawn in safe_pos])
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
Jan. 13, 2016
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