Xuanxuan Qijing Problem 62: Black to play and kill
玄玄棋经 · Problem 62 of 347 · First-line placement to make a false eye
White has one eye and hopes for a second on the top edge. Play inside that eye space on the first line, and aim to leave White with an eye that is false.
How to solve it
White has one eye and needs a second on the top edge. Black plays inside it on the first line at E19.
If White blocks at F19, Black plays F18. White captures a stone with D19, and Black's D17 makes it miai to connect above or to the left: White is left with a false eye.
If White plays D17 instead, Black plays F18, and after White's D19 Black connects at F19 with the same result.
Main line
- 1. Black E19
- 2. White F19
- 3. Black F18
- 4. White D19
- 5. Black D17
Solution checked against Sensei's Library.
Play it out on the board
Place the stones yourself and see the refutation when you miss. All the Xuanxuan Qijing problems as quick lessons.