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ShapeProblem1

 

Shape Problem 1 Solution
    Keywords: Shape, Problem

[Diagram]
Peep, atari, capture

Alex Weldon: I believe this is correct. White wants to capture BC to save her three stones, but to play W5 immediately is poor style. The proverb is play kikashi before living, and this is the purpose of W1 and W3. Either of them, if ignored by Black, would allow White to rescue her stones, while still having some intrinsic value if answered. Black is then essentially forced (at least from the local standpoint) to connect at B2 and B4. Then White comes back to play W5.



Order of moves is very important. If White played W3 before W1, W1 would no longer be forcing, because B4 also defends against W1; Black could resist kikashi?. Also, as I said, White must play kikashi before living. After W5, the three White stones have already been saved, so it is less pressing for Black to answer the kikashi. If White lived with W5 first, and then later tried to play W1 or W3, there's a chance Black might just ignore the move, if plays elsewhere on the board are larger.



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(OC) 2003 the Authors, published under the OpenContent License V1.0.