Solution
occupies the vital 1-2 point, then pushes. After , Black finds that he is unable to prevent White from connecting the stone outside due to shortage of liberties.
Variation ( at , at )
If makes a tiger shape, then , and kills.
Variation at D18
a and c are miai.
If at a then at c.
If at c then at a.
b and d are miai.
If at b then at d.
If at d then at b.
Sub-pages (up)Attempts
Referenced byRTGProblem27