Edge template IV2j

Template IV2-j is a 4th row edge template with 2 stones.

Red can connect the stone marked "↑" to the edge. Red cannot guarantee to connect the other stone.

(From: www.drking.org.uk)

Defending the template

Red has two threats:

and

To attempt blocking, Blue must play in one of the two cells where these threats overlap. If Blue plays in upper one of these cells, Red responds as follows:

Red 4 is connected to the bottom and also to the top by one of the two fields marked "+".

If Blue plays in the other overlap, Red responds as follows:

See also

Multiple threats