3-4 point, high approach, outside contact

Upper tsuke  

We discuss : White has two possible answers at a and b. Other moves are rare; c will be discussed on 3-4 point high approach outside contact, push

Black's intention is to develop along the left side and perhaps into the center. White can choose for a strong position at the upper side with a, or try to take the corner with b. Especially the latter move is likely to start some extremely complex variations. White should not play this move if the ladder^[101] is bad for her.

Outside Contact at

Outside contact play (1)  

• 3-4 Point high approach outside contact
• at a: see below.
• This variation: 3-4 point high approach outside contact, tsukehiki hanging connection
• at b: 3-4 point high approach outside contact, tsukenobi main line and 3-4 point high approach outside contact, tsukenobi simple lines
• at c: 3-4 point high approach outside contact, tsukehiki solid connection]
• at d: 3-4 point high approach outside contact, tsukehiki extend up
• at a: unexplored joseki

Outside contact play (2)  

• this variation ( here): 3-4 point high approach, double contact, push, extension
• at 10: 3-4 point high approach, double contact hane
• at a: 3-4 point high approach, double contact, wall
• at b: 3-4 point high approach, double contact, push, cut
• at 10: 3-4 point high approach, double contact, push, atari

Hane-hiki  

After the hane , drawing back (hiki) with is most common. Next the hanging connection is the traditional variation, while White a is more modern. White can also go straight for the center with White b, allowing Black a rather large corner.

• : 3-4 point high approach outside contact, tsukehiki hanging connection
• White a: 3-4 point high approach outside contact, tsukehiki solid connection
• White b: 3-4 point high approach outside contact, tsukehiki extend up

Black extends  

The second option at is this extension. Then and next are natural. After this comes the turning point of the joseki. here is the most common move, but leads to complex variations. White can instead choose other, more peaceful moves, but the result is regarded slightly better for Black.

• here: 3-4 point high approach outside contact, tsukenobi main line
• or elsewhere: 3-4 point high approach outside contact, tsukenobi simple lines

Attempted cut of the keima  

The obvious move is possibly a, from 'don't let the keima be cut'; but are there any other options for this joseki?

LukeNine45: absolutely must be at a. Only time it may be elsewhere is if was a ko threat. If black plays anywhere else, white will play a, and then for will have been a terrible exchange for black.