3-4 point high approach, two-space high pincer, ogeima, Cho's variation
According to An Younggil this is now the main variation of the 3-4 point high approach, two-space high pincer, ogeima. at
directly is the "old" joseki according to him.
This was first played by Cho Chikun in the 2000 Kisei title match (against O Rissei).
and
follow almost certainly, though recently some Chinese pros have started investigating
at a. The following seems to be the main line from the few games where this variation has been played so far:
After this is played at a or b, and the joseki comes to an end soon afterwards. Of course, several other moves have been tried, and it will be interesting to see how this joseki develops over time. Noone has yet seen fit to copy O Rissei's response when first confronted with this new move:
When Franz-Josef Dickhut confronted Egbert Rittner with this variation at the 2003 German Go Championship, Rittner took a full half an hour to come up with (colors reversed):
Though Black gained considerable territory, White seems to be much better here (especially since, in the game, there was a White stone at the hoshi to the bottom of this position). It might be interesting to play if the ladder doesn't work, though.
Authors: