A cube solver app has one job: turn the physical state of your cube into data, then turn that data into a list of moves you can follow. Everything else is interface.
Capturing the cube state
Scanning works face by face. The app looks at a 3×3 grid of colour samples per face and records which colour sits in each position. Good lighting and a steady frame make this step far more reliable.
Manual entry as a fallback
If the camera struggles — unusual stickers, tinted lighting, worn colours — entering the colours manually gives the solver exactly the same input.
Validating the configuration
Not every combination of colours is a solvable cube. Before producing a solution the app checks that the configuration it read is internally consistent: correct colour counts, valid edge and corner pieces, and a reachable state.
Producing the moves
Once the state is valid, the solver searches for a sequence of standard face turns that ends in a solved cube, then presents them one at a time so you always know which single turn to make next.
