Difference between revisions of "Bottleneck"

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(Added category)
(Removed "bottleneck with bridges" section, since there is no explanation and it makes no sense (Blue would never play like this).)
Line 12: Line 12:
 
   visible="area(d1,a4,g4,g1)"
 
   visible="area(d1,a4,g4,g1)"
 
   contents="R e1 e2 B d2 f2 d4 R 1:d3 B 2:c4 R 3:c3 B 4:b4 R 5:e3 B 6:e4 R 7:f3 B 8:f4"
 
   contents="R e1 e2 B d2 f2 d4 R 1:d3 B 2:c4 R 3:c3 B 4:b4 R 5:e3 B 6:e4 R 7:f3 B 8:f4"
  />
 
 
== Bottlenecks with bridges ==
 
 
<hexboard size="4x8"
 
  coords="none"
 
  edges="bottom"
 
  visible="area(d1,a4,h4,h1)"
 
  contents="R f1 B e1 g1 e4"
 
  />
 
<hexboard size="4x8"
 
  coords="none"
 
  edges="bottom"
 
  visible="area(d1,a4,h4,h1)"
 
  contents="R f1 B d2 g2 d4"
 
 
   />
 
   />
  
 
[[category:strategy]]
 
[[category:strategy]]
 
[[category:definition]]
 
[[category:definition]]

Revision as of 14:25, 11 September 2021

The bottleneck is a common defense pattern. The board fragment below shows a position where the vertical player (red) wants to connect to the bottom, but is being hindered by blue in a bottleneck formation.

The bottleneck formation invariably leads to a ladder situation. Red gets ladders in both directions.

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