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.
Fuseki frames the story; yose writes the final line.