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Tether

A minimalist sliding puzzle. Tiles slide until a wall stops them, and tethered tiles move together — stopping the moment either one is blocked. Line everything up to solve each level.

▶ Play TetherTap or swipe
TETH—ER
Tiles slide until something stops them. Tethered tiles move as one body — settle every shape on its mark.
DRIFT · LEVEL 12 / 100 slides 6 · par 6 solved 11/100
TILES

How to play

Tether is a sliding puzzle with one twist. Tap a tile to select it, then swipe or press an arrow to slide it. A tile doesn't step one square — it travels across the whole board and keeps going until something stops it: a wall, the edge of the board, or another tile. The walls are your brakes, so you aim at them to park a tile exactly where you want it.

Select a tile, then slide. It runs until a wall (or an edge, or another tile) blocks it — so you aim at a wall to stop it on the square you want.

The tether

Some tiles are joined by an ultramarine tether (and wear a matching dot). Tethered tiles move together as one rigid body — and they stop the instant any one of them is blocked. A tether can bind two, three or more tiles, and later boards carry more than one tether at once, so the order you move them in matters.

A tethered pair slides as one. The square meets the wall, so the circle halts with it — a tether is only as free as its most-blocked tile.
You can slide into a dead end
Because tiles slide the whole way, a careless move can strand a level with no solution left. Undo (Z) walks a move back, or restart from the top. Stuck? Hint (H) reads the board and points to the next slide — or tells you it's no longer solvable.

The pieces

Tiles — your movers. Each wears a shape — circle, square, triangle, diamond or hex — that matches exactly one goal.
Tethered tile — marked with a blue dot. Slides in lockstep with everything on its tether.
Goal — an outline target. Park the tile of the matching shape on it; it fills in when settled. Land every tile on its goal to solve the level.
Wall — an ink block. It stops any tile that slides into it, and a spare tile can be parked to work as a wall of your own.

Seven waters, 100 levels

There are 100 hand-built levels, and every par is a proven minimum — the fewest slides the puzzle can be solved in. They open on calm 5×5 boards and deepen tier by tier to a churning 11×11:

Drift · 5×5
Current · 6×6
Eddy · 7×7
Riptide · 8×8
Undertow · 9×9
Maelstrom · 10×10
Abyss · 11×11

Tips

  • Plan the last move first, then work out how to set it up.
  • Use a spare tile as a temporary wall — its own body is a backstop.
  • Remember a tether is only as free as its most-blocked tile.
  • Beat par, not just the level — chase the perfect line.
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▶ Play Tether

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