Here are a few of the important sequences in this variation.
Starting from solution (5) in the main solution, with the marked stone in place forcing the sequence up to here (well, almost ; there is another difficult variation starting with Black pushing and cutting, then driving White down with 7), the following is forced too :
But next it gets quite complicated (and I may still have missed something ; the full solution in sgf format soon to be found on my site : http://denisfeldmann.fr/bestiary.htm#emperor). I give only two examples:
shevious: If White connects, Black wins the capturing race.
(White at is just a repeat.)
Yes, sorry for that. It should have been :
dfeldmann?Yes, again I was oversimplifying (damn diagrams). Here is, I believe, the solution to your variation (but instead of only trying to demolish my solutions, you could try to mend them first :-)). Anyway, I am very grateful, for I had too quickly dismissed this option, and the final tesuji (sagari at 4 in diagram 10''a') is quite hard to find...
shevious: OK. I'll try to mend it if I can. :)
Actually, there are several moves that should be considered in the above solutions. I'll suggest some.
I think (5') is just a copying error from (5), but worth to be notified.
I mended it myself. :)
The Black's sente timing at a is delicate.
shevious: Then, what if Black goes back to ko fight after White ?