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248: 3 cleaver-heptacubes, 3 notch-heptacubes, 3 partridge-heptacubes
2 solutions for C and 2 solutions for D
3×
3×
3×
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× 