Before being cut, you can defend yourself.
Here, if white plays a cut at F6, black's two stones are badly separated.
So, black should play a defending move to prevent the cut.
This is a connection move.
Here, with F6, black firmly connects the stones.
This is a direct connection. There is no more possibility of white separating the stones.
White can legally play at F6, however, it will soon be captured by F5.
Please make sure by playing on the board by yourself.
Thus, they are virtually connected.
These kind of indirect connection may seem a little smarter than the direct
If you know when to play an indirect connection at the right place, you are no longer a beginner.
In the figure above, black has two cutting points at E5 and F4.
You might think either of them will be cut...
There is a good move which defends the two weak points simultaneously!
Please make a move at F5.
Now white can play neither E5 nor F4.
That's because F5 happens to be the indirect connection for both of them.
Because of the shape, this connection is called trumpet connection.
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