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259: 3 bulldozer-heptacubes, 3 hitchhiker-heptacubes, 3 notch-heptacubes
2 solutions for B, 3 solutions for A, 7 solutions for D and many solutions for C
3×
3×
3×
empty cube at B
(1 of 2)
empty cube at B
(2 of 2)
empty cube at A
(1 of 3)
empty cube at A
(2 of 3)
empty cube at A
(3 of 3)
3× 