Don't play on the point of symmetry / Solution 3

[Diagram]

False solution(1)

Getting out doesn't work.

[Diagram]

False solution(2)

Black is captured in a snap-back (at WC).

[Diagram]

Solution(1)

W2 must go down, as after the exchange of a for b, the ladder in the false solution (1) would work

[Diagram]

Solution(2)

W2 is an important tesuji : if played immediately at W4, Black plays at W2 himself, and White has only two liberties. Now B5, etc. repeat the same manoeuvre on the right, and we get to

[Diagram]

Solution(3)

Now for the really tricky part (it is easier if White captures) : the incredible B5, breaking the symmetry at last !! And Black concludes with a double atari at b, on the last point of symmetry :-)


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(OC) 2007 the Authors, published under the OpenContent License V1.0.
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