Joseki & Habit — Shape is efficiency: build connections with minimal stones and avoid heavy groups. Today we work at Professional level in the Middle Game.
Original term: 形 (katachi)
About this tactic: Efficient stone arrangement that stays connected, light, and flexible. Exploit overconcentration and bad shape. (形 katachi)
Weekly Course Notice: This lesson is part of a 7‑day course that repeats every week. Follow the hourly sequence from Monday to Sunday, then loop again next week to reinforce skills.
Strong connections, light shape, and steady rhythm win long games.