Edge template IV2j

The template:

(From: www.drking.org.uk)

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