Please Help me review

lightvector · Post by **lightvector** » Sat May 19, 2012 12:06 pm

When diagonal shapes meet straight shapes in Go, straight shapes usually win.

Click Here To Show Diagram Code: [go]$$W Case 1, straight shape meets diagonal shape. $$ ---------------------- $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . X . . . W B . . . | $$ . , . . . . W . B . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . |[/go]

Click Here To Show Diagram Code: [go]$$W White can often hit black's head $$ ---------------------- $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . X . . . O X . . . | $$ . , . . . . O . X . . | $$ . . . . . . . . 1 . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . |[/go]

Click Here To Show Diagram Code: [go]$$W Black is flattened to the second line. $$ ---------------------- $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . X . . . O X 6 . . | $$ . , . . . . O 5 X . . | $$ . . . . . . . . W 2 . | $$ . . . . . . . . 3 4 . | $$ . . . . . . . . 7 . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . |[/go]

Click Here To Show Diagram Code: [go]$$W Or black has multiple cutting points and a tricky fight. $$ ---------------------- $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . X . . . O X . . . | $$ . , . . . . O 3 X . . | $$ . . . . . . . 2 W . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . |[/go]

Click Here To Show Diagram Code: [go]$$B Black usually cannot hit white's head. $$ ---------------------- $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . X . . . O X . . . | $$ . , . . . . O . X . . | $$ . . . . . . 1 . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . |[/go]

Click Here To Show Diagram Code: [go]$$B Black is cut up. $$ ---------------------- $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . X . . . O X 4 . . | $$ . , . . . . O 2 X . . | $$ . . . . . . 1 3 . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . | $$ . . . . . . . . . . . |[/go]

And also...

Click Here To Show Diagram Code: [go]$$W Case 2, straight shape meets diagonal shape. $$ ------------------------------------ $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . . $$ . O . O . . . W B . . . . X . X . . $$ . . , . . . . W . B . . . . . . . . $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$W White's invasion threatens connection under $$ ------------------------------------ $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . a . . . . . . . . . $$ . O . O . . . O X . 1 . . X . X . . $$ . . , . . . . O . X . . . . . . . . $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$W White connects $$ ------------------------------------ $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . 5 6 . . . . . . . . $$ . O . O . . . O X 7 W 3 . X . X . . $$ . . , . . . . O . X 2 4 . . . . . . $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$B Black's invasion does not threaten connection under $$ ------------------------------------ $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . 4 3 . . . . . . . . . . $$ . O . O . 1 . O X . . . . X . X . . $$ . . , . 2 . . O . X . . . . . . . . $$ . . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . .[/go]

And also...

Click Here To Show Diagram Code: [go]$$W Case 3, straight shape meets diagonal shape. $$ ---------------------------------- $$ . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . $$ . . . . . . . W . B . . . . . . . $$ . . , . . . . W B . . . . . . . . $$ . . . . . . X X O O . . . . . . . $$ . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$W After giving each side a few symmetrical moves... $$ ---------------------------------- $$ . . . . . . . . . . . . . . . . . $$ . . . . . . . . . . . . . . . . . $$ . . O . . . . O . X . . . X . . . $$ . . , . O O . O X . X X . . . . . $$ . . . . . X X X O O O . . . . . . $$ . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$W White's territory on the top is larger $$ ---------------------------------- $$ . . . C C C C . . . C C C . . . . $$ . . . C C C C . . . C C C . . . . $$ . . O . C C . O . X C C . X . . . $$ . . , . O O . O X . X X . . . . . $$ . . . . . X X X O O O . . . . . . $$ . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$W And white still has good followups (if black defends against white 'a', white keeps sente). $$ ---------------------------------- $$ . . . . . . . . . . . . . . . . . $$ . . . . . . . . 3 1 2 . . . . . . $$ . . O . . . . O . X . . . X . . . $$ . . , . O O . O X a X X . . . . . $$ . . . . . X X X O O O . . . . . . $$ . . . . . . . . . . . . . . . . .[/go]

Click Here To Show Diagram Code: [go]$$B Black can't even play this modest move without leaving a weakness. $$ ---------------------------------- $$ . . . . . . . . . . . . . . . . . $$ . . . . . . . 2 1 . . . . . . . . $$ . . O . . . . O a X . . . X . . . $$ . . , . O O . O X . X X . . . . . $$ . . . . . X X X O O O . . . . . . $$ . . . . . . . . . . . . . . . . .[/go]

When you kick a stone and the opponent extends, you are giving yourself bad shape. Those diagonal shapes next to the opponent's straight shapes can drain quite a few points away from you in subtle ways that you might not realize, so you had better get good compensation in the bigger picture.

mogosoup · Post by **mogosoup** » Sat May 19, 2012 6:32 pm

This guy felt stronger than most 10kyus, in fact he just registered so maybe he isn't. He was really strange. He kept wanting to mark his own stones as dead.

I am mostly curious about the lower left hand corner. I feel like he got a lot of territory.

Post by **Joaz Banbeck** » Mon May 21, 2012 7:49 am

Move 10: As soon as he strengthens himself with C16 on the previous move, you know that eventually you are going to have to do something about the weakness at B18/D18. The standard shape here is E18.

Move 12: Necessary, but cramped. Now your previous move now looks way too small. It would feel better at F16 or G17, or maybe even H17.

Move 16: This ends in gote. How big is it? It looks rather small for your 8th move.
Probably better is the hane on top.

mogosoup · Post by **mogosoup** » Tue May 22, 2012 11:29 pm

Can someone give me some advice on how to save the group?

Life In 19x19

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