3-5 point 3-3 approach cover, tenuki

White's tenuki  

There are a few examples in pro games of White ignoring Black's cover play .

Fencing in the corner  

The first idea is , trying to take the whole corner. Some aji for White remains at a or b.

Fencing in the corner  

This choice of was tried by Hashimoto Utaro. There is then a weakness at c that White might be able to exploit in later fighting.

Charles Matthews