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266: 3 bulldozer-heptacubes, 3 gun-heptacubes, 3 spatula-heptacubes
2 solutions for A, 4 solutions for C, 5 solutions for D and many solutions for B
3×
3×
3×
empty cube at A
(1 of 2)
empty cube at A
(2 of 2)
3× 