Thickness Example 1
In this familiar result of a 3-3 invasion White has taken territory in the corner and Black has created a group, consisting of a wall with an extension at plus an extra stone at . The black configuration influences the center and the right side.
Even so, White has a possible forcing move here, at a.
Without the thick move, White can certainly cut bluntly with and here.
Black in fact normally reacts by running back at , instead of blocking at . Therefore it is quite usual, in this case, for White to be allowed to cut right through.
Another interesting way available here is the contact play .