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Staircase

 

Staircase example
  Difficulty: Advanced   Keywords: Tactics

[Diagram]
On the edge

White 1 is a typical tactic in handicap games; and then White 3 makes the staircase formation.


[Diagram]
White's ladder

White's idea in playing this way is probably that Black may be tempted to capture one stone on the edge; in which case White 6 captures in a ladder.


[Diagram]
Connect solidly

One better way for Black is to connect solidly as shown here. That makes a and b into miai points. This is discussed also at hane-kaeshi follow-up.

Not playing either atari here is in line with the 123 principle. It is useful to know this idea, as a way of playing.


[Diagram]
Keep White low

If Black is strong enough to fight hard here, Black 1 and 3 may make it difficult for White to live.



[Diagram]
The pro play

The staircase isn't often seen here in pro games, because extending with 1 is more like the proper play. Of course, White 1 is heavier, too. The original marked contact play is a technique that is occasionally appropriate.


[Diagram]
Kobayashi Satoru - Kato

In a game Kobayashi Satoru versus Kato Masao played 1990-11-15, the staircase did appear after the 10-3 contact play.

Black connected solidly and succeeded in killing White. On the other hand White managed to break into Black's upper area by means of this sacrifice. Black did win the game.


[Diagram]
Continuation

[Diagram]
Continuation

After these plays White's group is dead as it stands, but Black has become thin on the outside.


[Diagram]
Continuation

[Diagram]
Continuation

Charles Matthews



This is a copy of the living page "Staircase example" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.