This is the joseki as played. Abe, the joseki expert, was White. The alleged error was playing the tesuji 11. According to the Kido commentary, he should first play 'A'. If (or 'when' may be more apt) Black responds with 'B', then it is time for the tesuji 11.
The game continuation was as follows:
Now Black can play 'A' and that would revert to the same line as in the first "right-order" diagram, the end result of which will be a joseki shape.
The usual continuation then is as follows;
And a typical continuation from there could be the one shown in Jungsuk in our Time:
White can now capture four stones but "Black has the precious sunsoo" - sente.
Sakai, however, eschewed all this and, having the precious sunsoo already, chose to make good use of it by playing as in the diagram below:
This does seem a rather bold manoeuvre - an imperfect ponnuki in return for a
decent-sized corner - but there must be some grounds for a Kido staff writer to
rubbish all previous joseki books. The game may shed more light and you can
download it here
.
If you find this as baffling and intriguing as we did, this would be a good topic on which to seek expert opinion next time you meet a pro.
Now back to Igo Daijiten...