4

U2


U2 Design and Copyright : 陳啟仁 (Chi-Ren Chen) (2012).

A B
C D
Pieces 4 +frame C-D are congruent.
Selection random
Length 6
Goal 6×6×6
Holes 46
Solutions 1 / 12
Moves 28.6.3

May 18, 2011 by k16@chiba.email.ne.jp