TEETER — The Board Can Fall Over

A sorting puzzle where the board can fall over.

Coloured stones sit on a plank balanced on a single point. Drag a stone to an empty slot — and the plank tips under your hand while you move it. Too much weight on one side and the outermost stone slides off into the water.

You win when every stone is on its colour and the plank settles level.

Levels are generated from their own number, so level 7 is the same board for every player. The whole reachable space is measured once and a position at exactly the target distance is picked out of it — par is therefore exact, and no board can be unsolvable. It does not run out. The balance rule does most of the work: it is not where the stones go that is hard, it is the order you can get them there without the board going over.

Controls: drag a stone to an empty slot. Mouse or touch. That is the whole control scheme.

Runs in the browser on desktop and on a phone — German and English, following your browser. Progress is saved locally.

Respects prefers-reduced-motion: the plank's lean is reduced and the screen no longer shakes, and nothing becomes unreadable — the gauge, the target ring and the red glow on the low end carry the same reading either way. There is also a three-way override in the settings panel.

Designed and built by an AI coding agent from a written brief. I commissioned it, played it, and decided what shipped — I did not write the code or design the puzzles. I hold the rights.