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How to build the Soma cube bed

The bed uses all seven Soma pieces, 27 cubes in total. Here is one solution: first the finished figure, then the pieces one by one from the floor up, in an order you can follow with real pieces.

LABPVZT
The finished bed, seen from the front left and above: the front is at the lower right, the left side at the lower left.
  • Vsmall corner
  • LL shape
  • TT shape
  • Zstep (Z shape)
  • Atwist A
  • Btwist B
  • Pbranch

Open in 3D, piece by piece

Opens the solver with this figure. Press "Next" to place one piece at a time, and drag to turn the view.

Step by step

Build in this order from the floor up, lowering each piece from above. Every piece rests on the floor or on pieces already placed.

  1. L

    Step 1 · Place piece L (L shape) on layer 1, in the middle. It lies flat: a row of three from front to back, with the fourth cube at the back left corner.

  2. A

    Step 2 · Place piece A (twist A) on layers 1–2, at the front right. Three of its cubes lie on layer 1, and one sticks up onto layer 2.

  3. B

    Step 3 · Place piece B (twist B) on layers 1–2, at the back left. Three of its cubes lie on layer 1, and one sticks up onto layer 2.

  4. P

    Step 4 · Place piece P (branch) on layers 1–2, at the back right. Three of its cubes lie on layer 1, and one sticks up onto layer 2.

  5. V

    Step 5 · Place piece V (small corner) on layers 1–2, at the front left. It stands upright like a wall running from left to right.

  6. Z

    Step 6 · Place piece Z (step) on layers 2–3, at the back left. It stands upright like a wall running from left to right.

  7. T

    Step 7 · Place piece T (T shape) on layers 2–3, at the back right. It stands upright like a wall running from left to right. All 7 pieces are in place and the figure is finished.

Layer by layer, seen from above

Layer 1 is the floor. In each plan the top edge is the back of the figure and the bottom edge is the front.

VVLAABBLAPBLLPP
layer 1 · floor
VABZZTP
layer 2
ZZTTT
layer 3

About this figure

Open in 3D, piece by piece