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Lesson
Common Invasions
Invasions, reductions, settling, and safe retreat
Learning Goals
- Understand: Invasions, reductions, settling, and safe retreat
- Recognize when the idea applies in problems
- Build a stable reading order before practice
Common Mistakes
- Playing by shape instinct before counting liberties.
- Stopping after the first good-looking candidate.
- Ignoring the opponent's strongest reply and treating the task as one move.
Study Steps
Step 1
Identify the local goal: save, kill, connect, cut, or finish yose.
Step 2
Count liberties and eye space, then remove clearly failing candidates.
Step 3
Read forcing moves first: atari, cuts, threats, and sente exchanges.
Step 4
Review mistakes and attach each blind spot to this skill node.