Xuanxuan Qijing Problem 34 / Solution

[Diagram]

Point of symmetry

In a sense this is a symmetrical shape because 'x' and 'y' plays the same role - sente for black.

White has two obvious choices to try to make the second eye, namely 'a' and 'b'.

Attempt 'a'

[Diagram]

Black connects B1 out with the sente at B3. Next, B5 takes away whites eye space. White can't capture the black stones with W6.

[Diagram]

White can try to struggle more, but it doesn't work.

.

Attempt 'b'

[Diagram]

W2 is met by B3. If white tries W4 here, again, black plays the sente move at B5, and then takes away white's eye space with B7.

[Diagram]

W4 here is countered by B5; white can't get both 'x' and 'y'. Alternatively, black can play B5 at 'x', but the aji is slightly worse on the right side.

[Diagram]

Finally, for W4 here, black just make atari and connect.

Failure

[Diagram]

Making atari first doesn't work, next white gets an eye with either 'x' or 'y'.

[Diagram]

B1 here, white tries to make an eye with W2. B5 is a smart move that destroys the eye, but white makes an eye with W8.

[Diagram]

Another failure

Maybe this is too obvious.


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