Minh Tai, a high school senior in the Los Angeles area who can do
the cube in average 50 seconds proposes the following problem:

Is it possible to make every face have either a Z or an S
(two colors, one forming the Z pentomino)?

He signs himself with a quick routine for six T's as follows:
(U2 R' L)2 (B2 D2)3


   ------!----!-------
   ! x   ! x  !      !
   !                 !
   ------!----!-------
   !     ! x  !      !
   !                 !
   ------!----!------
   !                 !
   !        x      x !
   ------!-----!------
-------