EVENT
BOARDSIZE 19
SETUP W Q13 Q14 R15 R16 S17 R12 Q4 R5 O3 B4 C6 C9 L17 
SETUP B D17 C15 J17 R18 R17 P17 Q16 Q15 P14 K3 F3 D4 C3 
MARK D@K16 C@J15 B@K15 A@L15 \t@L17
COM
The above two principles will go a long way in helping you become
an effective attacking player. But it is necessary for you to
learn some basic attacking techniques as well.  

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Attacking with Caps and Knight's
Moves 
################################### 

Two of the most common are capping moves and the knight's moves.
We have already seen examples of these in "Problem 2", namely
Black 1 and 3 there (both are good moves, but Black 5 there is
not good). Look at the Diagram (Taken from Problem 16.).

White has just jumped into hostile territory with her marked
stones. Black can get a clear advantage if he attacks correctly.
The two main candidate moves are A and B, but a lot of players
would also consider jumping to C or extending diagonally with
D.

The first thing you must do when faced with a situation such
as this is to have a clear idea of your goal. It is unreasonable
for Black to expect to kill this stone. A reasonable goal would
be to let it live, but confine it to the top.
ENDCOM
B 1 J15
COM
With this goal in mind, Black 1 is rejected because ...
ENDCOM
  VAR
  B 1 K16
  COM
  Extending diagonally with Black 1 is also not consistent with
  Black's goal because ...
  ENDCOM
  W 2 M15
  COM
  ... White again escapes into the center with 2.
  <=
  ENDCOM
  ENDVAR
  VAR
  B 1 L15
  COM
  What about capping at 1? This cap is the kind of severe attacking
  move that often succeeds, but here ...
  ENDCOM
  W 2 K16
  COM
  ... White will be able to break out by extending diagonally with
  2. Black's stones on the left will become strong and he will
  secure the territory there. But White will escape into the center
  and Black's wall on the right will not have been used effectively.
  <=
  ENDCOM
  ENDVAR
  VAR
  B 1 K15
  COM
  This leaves only the knight's move of Black 1. It will drive
  the white stone towards the black wall on the right, enabling
  Black to build a wall on the outside and force White to live
  in gote.

  [Continued as "Problem 5"] 
  ENDCOM
  ENDVAR
W 2 L15
COM
... White can jump to 2 and her stones are out into the open.
<=
ENDCOM