The closed DUiX box, its name engraved into the black lid

Calibre 01 · Two-level logic game

DUiX

Two levels. Ten pieces.Only one way to close the box.

Buy · $39See how it works

Ref. LGX-DUIX88.2 × 88.2 × 24.2 mmAges 6+

How it works

One rule:everything has to fit.

Each challenge sets a few pieces for you. Every other piece has to find its place, on two levels, and there is only one solution. Scroll: challenge 01 builds itself before your eyes.

DUiX, challenge 01 built piece by piece

The box · 50 empty cells

  1. IThe box2 levels of 5 × 515 mm pitch, 9 mm levels: fifty cells to fill.
  2. IIThe given piecesC, G, E, H, B, JChallenge 01 sets six. They go in first, in the guide's order.
  3. IIIThe bridgesG bridges over CEvery piece spans both levels. Once the bridge is down, the level below is out of sight.
  4. IVThe pieces to findD, I, F, AD rests on C and E; A, on three pieces at once. This is where it all plays out.
  5. VThe lid is the judgeClosed or notIt only closes when all fifty cells are filled. No half-wins.
  6. VISolvedChallenge 01 · StarterA minute for the first challenge, an evening for the last.

How it works, on video

One challenge,in thirty seconds.

Challenge 01, from the first move to the closed lid. Rendered from the game's 3D files: what you see is what you will receive.

DUiX · challenge 01 · 30 s

Loading 3D model…

Drag to rotate

Anatomy · exploded view

Ten pieces, fifty cubes,not one to spare.

Ten pentacubes, all different, each straddling both levels. Pick a reference to examine it on its own, from every angle.

↑ Tap a reference to see it in 3D and turn it.
“4 + 1”: cubes on the first level + cubes on the second.

Combinatorics

696 ways to fill the box.Each challenge leaves only one.

696

Challenge 71 · Expert · no pieces placed

The challenges

120 challenges,from morning coffee to sleepless night.

Five levels of 24 challenges. The higher the level, the fewer pieces you are given. Scroll: the cursor runs through all 120 challenges, from the simplest to the most devious.

Bar height: size of the solver's search tree, in nodes, on a log scale. Every challenge has a unique solution, verified by two independently written solvers.

The guide

No booklet.The QR code on the box opens the challenge in 3D.

  • 01The given pieces go in one by one, in 3D, on your phone. Every piece carries its letter, top and bottom.
  • 02Then the guide lets you search. Need help? It walks you through to the last piece.
  • 03No account, no app. The guide works offline once loaded.
  • 04120 challenges for DUiX, 960 across the eight games in the range.
DUiX: the name engraved in the lid, in raking light

The workshop

Designed, madeand inspected in Montreal.

Every box is checked and numbered before it ships.

Calibre 01

DUiX

$39Taxes extra

Shop coming soon
DUiX expansionEight more pieces, 120 new challenges · $19 TRIPLiXThree levels, five towers · $49
Contents
10 pieces (A to J), 2-level box, lid engraved DUiX, card with the guide code
Challenges
120, in 5 levels, one solution each, in the online guide
Size
88.2 × 88.2 × 24.2 mm closed, about 110 g
Age
6 and up
Origin
Designed, made and inspected in Montreal.
Shipping
Ships from Montreal within 2 business days. $9.95 shipping in Quebec and Ontario, free from $75. Free pickup in Montreal.

PLA is a plant-based plastic that softens above 55 °C. Keep out of direct sun and hot cars; clean with lukewarm water.
Warning: small parts. Not for children under 3 years.