This is a position from a DGS game I finished not to long ago. Does black need to spend a move connecting the center stones, or can black play elsewhere? Looked at another way, can white cut off the marked stones?
$$Bc can white cut? $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . X . . . . . . X O X X O . O X . . . | $$ | . O X . . X X . X X O O . O X . . . . | $$ | . O . X . X O O . O . O . O . X . . . | $$ | . . . . . O X O . . O . . . . . . . . | $$ | . . O . O . X O . . O X . X . X . . . | $$ | . . . . O X . B B O O O X . . . . . . | $$ | . . . . . X O O B B O X . . . . X . . | $$ | . . . O . . . . B . O X . X . . . . . | $$ | . . . , . . O O B , O X . . O , X X . | $$ | . . . . . . . . B . X O O . . . . O . | $$ | . . . O . . . . . . X . . . . . O . . | $$ | . O O . . O . . . . . . . O . O X . . | $$ | . O X X . . . . . . . . X X X O . . . | $$ | X X . . . O . . . . X . . . X O . . . | $$ | . . . X . . . . O , . . O . X X O O . | $$ | . . . X . O . X O . X . . . . O X O . | $$ | . . . X O . . . O X . . . . . X X X O | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------
[go]$$Bc can white cut? $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . X . . . . . . X O X X O . O X . . . | $$ | . O X . . X X . X X O O . O X . . . . | $$ | . O . X . X O O . O . O . O . X . . . | $$ | . . . . . O X O . . O . . . . . . . . | $$ | . . O . O . X O . . O X . X . X . . . | $$ | . . . . O X . B B O O O X . . . . . . | $$ | . . . . . X O O B B O X . . . . X . . | $$ | . . . O . . . . B . O X . X . . . . . | $$ | . . . , . . O O B , O X . . O , X X . | $$ | . . . . . . . . B . X O O . . . . O . | $$ | . . . O . . . . . . X . . . . . O . . | $$ | . O O . . O . . . . . . . O . O X . . | $$ | . O X X . . . . . . . . X X X O . . . | $$ | X X . . . O . . . . X . . . X O . . . | $$ | . . . X . . . . O , . . O . X X O O . | $$ | . . . X . O . X O . X . . . . O X O . | $$ | . . . X O . . . O X . . . . . X X X O | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
The only possible move to disconnect would be M7 but black can answer with K6 and all is safe. Black needs to watch out as the position changes.
An interesting move in this position is S7. How should white respond to that?
Still officially AGA 5d but I play so irregularly these days that I am probably only 3d or 4d over the board (but hopefully still 5d in terms of knowledge, theory and the ability to contribute).
$$Wc can white cut? $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . X . . . . . . X O X X O . O X . . . | $$ | . O X . . X X . X X O O . O X . . . . | $$ | . O . X . X O O . O . O . O . X . . . | $$ | . . . . . O X O . . O . . . . . . . . | $$ | . . O . O . X O . . O X . X . X . . . | $$ | . . . . O X . B B O O O X . . . . . . | $$ | . . . . . X O O B B O X . . . . X . . | $$ | . . . O . . . . B . O X . X . . . . . | $$ | . . . , . . O O B , O X . . O , X X . | $$ | . . . . . . . . B . X O O . . . . O . | $$ | . . . O . . . . . 5 X . . . . . O . . | $$ | . O O . . O . . . 4 3 1 . O . O X . . | $$ | . O X X . . . . . . 2 . X X X O . . . | $$ | X X . . . O . . . . X . . . X O . . . | $$ | . . . X . . . . O , . . O . X X O O . | $$ | . . . X . O . X O . X . . . . O X O . | $$ | . . . X O . . . O X . . . . . X X X O | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------
[go]$$Wc can white cut? $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . X . . . . . . X O X X O . O X . . . | $$ | . O X . . X X . X X O O . O X . . . . | $$ | . O . X . X O O . O . O . O . X . . . | $$ | . . . . . O X O . . O . . . . . . . . | $$ | . . O . O . X O . . O X . X . X . . . | $$ | . . . . O X . B B O O O X . . . . . . | $$ | . . . . . X O O B B O X . . . . X . . | $$ | . . . O . . . . B . O X . X . . . . . | $$ | . . . , . . O O B , O X . . O , X X . | $$ | . . . . . . . . B . X O O . . . . O . | $$ | . . . O . . . . . 5 X . . . . . O . . | $$ | . O O . . O . . . 4 3 1 . O . O X . . | $$ | . O X X . . . . . . 2 . X X X O . . . | $$ | X X . . . O . . . . X . . . X O . . . | $$ | . . . X . . . . O , . . O . X X O O . | $$ | . . . X . O . X O . X . . . . O X O . | $$ | . . . X O . . . O X . . . . . X X X O | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Your move 2 would be very bad as it doesn't really protect anything. You have to be more indirect as I showed in my earlier post.
Still officially AGA 5d but I play so irregularly these days that I am probably only 3d or 4d over the board (but hopefully still 5d in terms of knowledge, theory and the ability to contribute).
looking bad, it appears that black is still connected after that sequence.