Forum for Xuanxuan Qijing Problem 169

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Black 1 tn the solution not required? [#2796]

Laudia: Black 1 tn the solution not required? (2012-05-06 03:02) [#9370]

Could black simply play 3 at the beginning? As far as i could read the exchange 1 for 2 is still possible after the ladder has come to its end.

JoelR: 1 is necessary as a probe. (2012-05-06 10:33) [#9371]

is a probe. Black must play out the ladder differently if White descends. So Black makes White choose before playing out the ladder.

Laudia: ((no subject)) (2012-05-06 10:41) [#9372]

Thank you very much, terrible missread on my part, missed one of w's liberties.

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Forum for Xuanxuan Qijing Problem 169