The world has one puzzle.
Solve it first.
A focused 6×6 cage-sum logic game where every live player receives the same puzzle. Your board stays private; the race, the Discoverer and the Chain are shared.
200 progressive training puzzles, a permanent archive and one live World whenever you want the race.
The next puzzle remembers the last one.
Every completed grid leaves exactly six solved positions behind — one in every row and every column — while the next board still has one exact, no-guess solution.
Learn privately. Race globally.
Solve at your own pace in Training, then enter the shared World when you want the pressure of a real global first solve.
Use 1–6, rows, columns and cage sums.
The first verified solution becomes the Discoverer.
Other correct boards can still join the Chain.
Six values survive into the next World.
A fresh race every month.
Every verified live solve earns position-based points. Chase your personal rank or race together with a Crew.
SEE THE GLOBAL RACE →Every World becomes playable history.
Replay completed Chain puzzles, play the Daily, or return to the live World when you want competition.