for rods in [ self._diced,
[ abs(self._diced[0] - self._diced[1]) ],
[ self._diced[0] + self._diced[1] ] ]:
if self._can_be_shut(rods):
self._options.append(rods)
for rods in [ self._diced,
[ abs(self._diced[0] - self._diced[1]) ],
[ self._diced[0] + self._diced[1] ] ]:
if self._can_be_shut(rods):
self._options.append(rods)