Up to and including black_14 this is this game between Christian and Ed. In the actual game white proceeds with the invasion 15. A10 and wins easily. Here the difference between invading or not invading is illustrated in an example where white invades (or not) one move later.

Best start both at white_15.
Sorry, you need a Java enabled browser to view this Symple Game.
As it turns out white wins by the smallest possible margin. Imagine it were the other way around. Now let's instead invade at A10.
Sorry, you need a Java enabled browser to view this Symple Game.
This wins by seven points.