Category
Insight
Hand-picked one-offs. Each puzzle is its own world.
The flagship series. Every puzzle here has a non-obvious aha — a single insight that makes the rest fall into place. Curated by hand, no two alike. Updated weekly.
6 puzzles
- The Mislabeled BoxesLogic · ★★★☆☆
Sometimes the only way forward is to embrace what you know is wrong.
- Two StrangersLogic · ★★★☆☆
On an island where every sentence is a key, one statement can unlock two doors.
- The Inscribed CircleGeometric · ★★★☆☆
Half a square, a single circle. The geometry is older than calculus.
- The Bridge and the TorchAlgorithmic · ★★★★☆
Sometimes you have to send your slowest people together — even if it feels wrong.
- Two Doors, Two GuardsLogic · ★★★★☆
One question. One answer. Two guards. Make their truth-telling — or lying — point you to the right door.
- The Twelve CoinsAlgorithmic · ★★★★★
A balance scale gives 3 outcomes per weighing. Three weighings, twenty-seven outcomes. Plenty for twelve coins — barely.