Form & Logic

Form & Logic is a collection of four small geometry puzzles, each built on a different kind of reasoning. • Paired Rotors — turn linked polygons. Order does not matter; counts do. • Mirror Circuit — flip tiles across a shared edge. A solution is a set of handles. • Vertex Twist — rotate rings of six triangles. Overlapping rings do not commute. • Boundary Shift — hand a tile to a neighbouring region. Bridges force detours. A Journey interleaves the four, getting harder together, with short lessons along the way. Practice lets you stay with one mechanic. After a solve, an optional insight card explains the move you just made — in the language of that puzzle, not a lecture. No timers. No accounts. Progress stays on the device.