Difference between revisions of "Edge template V1b"

We will assume that Red simply defends the pink ziggurat, and therefore we will not need to consider any Blue intrusions there.

Red's main threats are

and

Blue must play in the overlap:

If Blue plays at a, then Red plays 5, after which Red connects via

or

If Blue plays at b, then Red plays 5, after which Red connects via

or

If Blue plays at c, then Red responds with

This forces Blue to defend towards the top, after which

connects directly or via red 1.

If Blue plays at d or e, then Red plays like this:

If Blue plays at f, then Red plays like this:

Now Red threatens to play in one of the cells marked "*", and the only overlap (apart from the two captured cells below 5) is at "+", so Blue must play there. Then Red responds like this:

Now Red is connected left by double threats "*" and right by double threats "+".

Red's main threat is as follows,

connecting back via one of the cells marked "*".

If Blue plays either of the two of those cells adjacent to the edge, then Red plays the

same move anyway, connecting down via the other of those two cells or Tom's move.

If Blue plays one of the five upper-right of those cells

then Red still connects via Tom's move,

since at least two of the three cells marked "*" are still available to Red 1 to connect to Red's left group.

This leaves only two remaining tries for Blue:

If Blue plays the right of those two,

then Red connects via double threat.

Thus Blue instead plays the left of those two. ​ Red responds as follows.

Now, it does not matter which of the two shaded cells Blue 2 is at, since

• if Blue plays the other too then the order in which they were played doesn't matter, and
• if instead Red plays the other, then whichever one Blue played will be dead.

So this is equivalent to Red having a clipped version of Edge template IV1d.

In particular, Red is connected down.