British Go Journal No. 65.  July 1985. Page 31a.
The problem to this solution is on page 25b .
"There is death in the hane", as the proverb reminds us. Black 1 and 3 appear to help white, but then 5 lands on the vital spot and exploits black's shortage of liberties.
Solution 1a ||
Solution 1b |
Dia 1b is a variation.