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152: 3 cleaver-heptacubes, 3 four-heptacubes, 3 hanger-heptacubes
1 solution for C, 2 solutions for A and 2 solutions for B
3×
3×
3×
empty cube at C
empty cube at A
(1 of 2)
empty cube at A
(2 of 2)
empty cube at B
(1 of 2)
empty cube at B
(2 of 2)
3× 
3× 