The box 5x8x8 with C4 symmetry with pentacube 33 (Helmut Postl, Jan. 1998) +--+--+--+--+--+--+--+--+ | d |d | |d |d | | +--+ +--+--+ +--+--+ + |d | | |d | d | +--+--+--+ +--+--+ +--+ |d | | d | | |d | +--+ + +--+--+ +--+--+ | d | |d |d |d | | + +--+--+--+--+--+--+ + | | d |d |d | |d | +--+--+ +--+--+ + +--+ |d | | |d | |d | +--+ +--+--+ +--+--+--+ |d | d | | | | + +--+--+ +--+--+ +--+ | |d |d | |d |d | +--+--+--+--+--+--+--+--+ +--+--+--+--+--+--+--+--+ |d |u |u d | u |u d | + +--+--+ +--+ + +--+ |u |d | |u |d | |u | +--+--+--+--+--+--+--+--+ |u d | |u |d |d |u | + +--+ +--+ +--+--+ + | |u |d u |u |u | d | +--+--+--+--+--+--+--+--+ |d |u |u |u d |u | | + +--+--+ +--+ +--+ + |u |d | d |u | |d u | +--+--+--+--+--+--+--+--+ |u | |d |u | |d | u | +--+ + +--+ +--+--+ + |d u |u |d u |u |d | +--+--+--+--+--+--+--+--+ +--+--+--+--+--+--+--+--+ |u | |d |u | |d |d |u | +--+ +--+--+ +--+--+--+ |d | u |d |u | | +--+--+ + +--+--+ +--+ |d |u | | |u | u |d | +--+--+--+--+--+--+--+--+ | |u |d |d | d |u | +--+ +--+--+--+--+ +--+ |u |d |d |d |u | | +--+--+--+--+--+--+--+--+ |d |u |u | | |u |d | +--+ +--+--+ + +--+--+ | |u | d |u |d | +--+--+--+ +--+--+ +--+ |u |d |d | |u |d | |u | +--+--+--+--+--+--+--+--+ +--+--+--+--+--+--+--+--+ |d |u d | u |u d | + +--+ +--+--+ +--+ + |u |d | |u |d |d |d | | +--+--+--+--+--+--+--+--+ |u d | |d |d | u | + +--+ +--+ +--+--+ + | |d |d u |u |d |u |d | +--+--+--+--+--+--+--+--+ |d |u |d |u |u d |d | | + +--+--+ +--+ +--+ + |u | d |d | |d u | +--+--+--+--+--+--+--+--+ | |d |d |d |u | |d |u | + +--+ +--+--+ +--+ + |d u |u |d u | d | +--+--+--+--+--+--+--+--+ +--+--+--+--+--+--+--+--+ |u | |u | | |u | +--+ +--+--+ +--+ +--+ | u | | u |u |u | +--+--+ +--+--+--+--+ + | |u | u |u | | | + +--+--+ +--+ +--+--+ | u |u | | u | |u | +--+ +--+--+--+--+ +--+ |u | |u | |u |u | +--+--+ +--+ +--+--+ + | | |u |u |u | | + +--+--+--+--+ +--+--+ | u |u |u | |u | +--+ +--+ +--+--+ +--+ |u | | |u | |u | +--+--+--+--+--+--+--+--+