Standard opening 4
Difficulty: Advanced Keywords: Opening
Standard opening 4 is the widest path for Waltheri but starting at the second most popular move, which is a 3-4 point:
leaves the upper left joseki "unfinished", making for a dynamic opening.
prevents a double enclosure.
Using a driving tesuji of sorts, makes a hanging connection in sente so that next
can cut.
The pattern continues in a one way street. White sacrifices 4 more stones in the corner, to get influence on the outside. and next ...