back
154: 3 napkinholder-heptacubes, 3 notch-heptacubes, 3 pi-heptacubes
1 solution for B, 2 solutions for C and 2 solutions for D
3×
3×
3×
empty cube at B
empty cube at C
(1 of 2)
empty cube at C
(2 of 2)
empty cube at D
(1 of 2)
empty cube at D
(2 of 2)
3× 
3× 