Your first renju game against the engine. You are black: the forbidden points are marked on the board, the opening theory of chapters 9–10 applies, and the four-three is your sharpest weapon. Plan the capped three early — a forcing four without a follow-up is just a wasted stone. Concretely: open toward one side, grow a second line while white answers the first, and only then look for the junction where a four and a three can be born together.
Play step
Finish this step to move on.