LEARN BY MAKING A MOVE
A new dimension.
One idea at a time.
You do not need to understand four dimensions before you start. Begin with one piece, one legal move and a clear view of the board.
Begin inside the app
Start The Lost Signal from Home, Learn or the welcome flow. This free, optional story teaches through twenty playable chambers, with guidance adapted for beginners and experienced chess players. Resume later or revisit the full course and movement labs whenever you want. Pawnie’s short setup helps you try tapping and moving your companion before choosing its settings.
- Meet Pawnie and play The Lost Signal ↗
Restore an observatory in twenty chambers, with guidance for new and experienced chess players.
- 102 puzzles and a daily practice habit ↗
Explore five levels, spatial challenges and how free puzzle sets work.
- Your first game ↗
Start with a compact board, find a legal move, and build confidence with Quick helper.
- How four connected boards work ↗
Understand X, Y, Z and W without having to picture an extra dimension.
- Turn a game into practice ↗
Replay a position, save a deeper review and return to a personal practice exercise.
When you are ready for more
Explore the advanced 4D Academy. The first exercise in each module is available free; Fourfold Plus unlocks the complete advanced collection. Existing basic lessons remain free.
See the Plus comparison →