- Logical reasoningDeduce consequences and eliminate incompatible options.
- Spatial reasoningVisualize positions, connections and shapes before acting.
- Attention to detailTrack clues and detect conflicts on the board.
- Working memoryHold several clues and constraints in mind while deciding.
Join neighbouring regions with stitches while satisfying all numerical clues.
These puzzles engage different skills while you play. This does not in itself establish general cognitive improvement or replace professional care.