- For other uses of "cloverleaf", see Cloverleaf (disambiguation).
Washing machine (or cloverleaf) is a period-2 oscillator found by Robert Wainwright no later than June 1972. It consists of four diagonal on-off rotors within a single stator.
It is the fifty-sixth most common object on Catagolue in the symmetry the object has (D4_x1), making it the fourth most common period-2 oscillator in that symmetry, but it is much rarer in asymmetric soups.
In other rules
Washing machine is much more common in Grounded Life (B35/S23), even in asymmetric soups. It is the 56th most common object in asymmetric soups and the 21st most common object in D4_x1 soups.