Date: 23 Sep 1981 1554-PDT From: HOROWITZ at USC-ISIF Subject: question for cube-lovers To: cube-lovers at MIT-AI 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 ! ------!-----!------ -------