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240: 3 bulldozer-heptacubes, 3 dove-heptacubes, 3 gun-heptacubes
2 solutions for B and 2 solutions for C
3×
3×
3×
empty cube at B
(1 of 2)
empty cube at B
(2 of 2)
empty cube at C
(1 of 2)
empty cube at C
(2 of 2)
3× 
3× 