#### siva.shanmukh

##### Member

My defn of non-reducable maneuver is that there are no X X' / X X2 combinations in the maneuver recursively.

I recently came across this:

F R U2 B U B' R' D2 F2 D2 R' L F2 B U2 F2 B2 D2 B L' R U2 B2 F' U' (I think Feliks posted it somewhere and I found this in some forum)

This is a 25 mover. And we know of (R U R' U') x 6 which is a 24 mover. I am wondering if there are shorter ones!