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

Calibre 05 · The secret tunnel puzzle

GALERiX

Eight pieces. Two keys.If they go through, you've got it.

Buy · $44See how it works

Ref. LGX-GALERIX85.2 × 85.2 × 19.8 mmAges 6+

How it works

One rule:the keys have to get through.

Each challenge sets a few pieces, a row and a column. Fill the board, then push in both keys: if they come out the other side, you've got it. Scroll: challenge 01 builds itself, then the keys pass judgment.

GALERiX, challenge 01 built piece by piece, then both keys go through the board

The board · 36 empty cells

  1. IThe board6 × 6, two levels12 mm pitch. Every cell of every piece has two tunnels through it, one low, one high, each running in one direction.
  2. IIThe given piecesE, F, D, G, CChallenge 01 sets five, down to their engraved lines: a single line for the low tunnel, a double line for the high one.
  3. IIIThe pieces to findA, H, BTurn them, flip them: a flipped piece swaps its low and high tunnels.
  4. IVThe tunnels connectRow 1, column 4Six low tunnels lined up wall to wall along row 1, six high ones along column 4. You can't see them: only the engraved lines give them away.
  5. VThe keys are the judgesTwo keys, two levelsThe key goes in from the left on the low level, the key from the front on the high level. One piece turned the wrong way, and the key stops dead.
  6. VISolvedChallenge 01 · StarterBoth keys come out the other side: it's right, and it's the only solution.

How it works, on video

One challenge,in thirty seconds.

Challenge 01, from the first move to both keys going through. Rendered from the game's 3D files: what you see is what you will receive.

GALERiX · challenge 01 · 31 s

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Anatomy · exploded view

Eight pieces, two keys,seventy-two tunnels.

Eight flat, reversible pieces of four or five cells, with two tunnels through every cell, and two 91 mm keys. Pick a reference to examine it on its own: flip it, and its lines change sides, its tunnels change levels.

↑ Tap a reference to see it in 3D, flip it and turn it.
Single line: low tunnel. Double line: high tunnel. Engraved top and bottom.

Combinatorics

1,976 ways to fill the board.The keys rule out almost all of them.

1,976

Challenge 71 · Expert · no constraints

28 of the 36 key pairs are possible, with 6 to 396 assemblies each. At Wizard level, the row and column are hidden: the two given pieces leave just one.

The challenges

120 challenges.At the last level, the keys go into hiding.

Five levels of 24 challenges. The higher the level, the fewer pieces you are given; at Wizard level, you are no longer told the row or the column. Scroll: the cursor runs through all 120 challenges.

Bar height: size of the solver's search tree, in nodes, on a log scale; at Wizard level (hatched), the sum over the 28 key pairs. 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: letter, position and tunnel lines, exactly as engraved.
  • 02The keys' row and column are marked at the edge of the board. At Wizard level, they are hidden: it's up to you to find them.
  • 03No account, no app. The guide works offline once loaded.
  • 04120 challenges for GALERiX, 960 across the eight games in the range.
GALERiX: 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 05

GALERiX

$44Taxes extra

Shop coming soon
DUiXTwo levels, ten pieces · $39 PIViXTen hinged pieces · $34
Contents
8 reversible pieces (A to H), 6 × 6 board, 2 keys, lid engraved GALERiX that stores the keys, card with the guide code
Challenges
120, in 5 levels, one solution each, in the online guide; at Wizard level, the keys' row and column are hidden
Size
85.2 × 85.2 × 19.8 mm closed, keys stored, about 88 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.