XuanxuanQijingProblem37/Solution

[Diagram]

Attempt

This sequence may be first try.

[Diagram]

Attempt failed

White succeeded in destroying eye of Black, but lost in capturing race.


.......W7W8..W9.......
......OXW3W2W1.XXO....
....O.OXW4XW5XXOO.O..
...,.XXOOXW6OOX.,...
.......XOOOOX.X....
.......X....X......
.........X.X.......
...................
...................

OTF: Main line (1)

W1 and W3 sequence is to make shortage of liberties.


......B3OXB2B1O.B4.....
......OXOXO.XXO....
....O.OXXXOXXOO.O..
...,.XXOOXXOOX.,...
.......XOOOOX.X....
.......X....X......
.........X.X.......
...................
...................

OTF: Main line (2) - ko

Black is in danger by shortage of liberties from both side.
Best Result is ko.


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