4-4 point low approach, high extension, invasion
Other options to investigate are d, attacking , e dodging the invastion and f jumping out.
The wedge variation usually results in White influence, while Black will settle at the , by continuing to push or jump at some point, depending on stones present to the right.
This attachment turns into a variation of the 4-4 point, low approach. With the marked stones present, White may choose to take the corner at instead of connecting at .
Aside from local responses, immediately seeking compensation in the corner is possible. However, Black may turn here and confine White into the corner, especially if Black has a stone at the circled spot. After , White's marked stone is oddly placed.
When analyzing this position, LZ prefers here, taking the corner and some centre influence in sente to then play .