Every Mac since macOS 13 (2022) ships a pair of daemons whose only purpose in life is to build a graph about who you are, who you know, how those people are related to you and to each other, how you communicate with them, where you go, what you do and when. In this post, we look into how this system works and give you a tool to peek into your own graph.
A family fork: one knight on e2 attacks White's king, queen, rook and bishop at once. White's pieces are the household the graph is about; the knight is the store, one move from every one of them. White's own last move, 18.e3, emptied the square it stands on. White is in check and has one legal reply, Kh1; then the knight takes the queen. The check falls on the one who accepted the terms. What is lost is someone else.
