Difference between revisions of "Loose connection"

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There are two different types of '''loose connections''', both of which are described below.
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There are many different types of '''loose connections''', two of which are described below.
  
 
== Type I ==
 
== Type I ==
  
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<hex>R2 C3 Q1 Ha1 Hc2</hex>
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<hexboard size="2x3"
 +
  coords="none"
 +
  edges="none"
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  contents="R a1 c2 E *:b1 *:b2"
 +
  />
  
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The [[Piece|pieces]] on this board are able to connect to each other through a [[Bridge|bridge]] by placing a piece on either b1 och b2, that is if they're not prevented to do so.
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The [[Piece|pieces]] on this board can be connected by a [[Bridge|bridge]] by placing a red piece at either of the cells marked "*". These are the same places where Blue can play to try to prevent the connection.
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The two stars on this board shows which positions can be used to break the threat of a loose connection:
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<hex>R2 C3 Q1 Ha1 Sb1 Sb2 Hc2</hex>
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These are the same places at which the horizontal player wants to place additional pieces in order to connect the blue pieces.
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== Type II ==
 
== Type II ==
  
 
This connection is a bit weaker than Type I.
 
This connection is a bit weaker than Type I.
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<hexboard size="3x4"
 +
  coords="none"
 +
  edges="none"
 +
  visible="-a1 d3"
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  contents="R a2 d2 E *:(c1 b3)"
 +
  />
  
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<hex>R3 C4 Q1 Ha2 Hd2</hex>
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Red threatens to connect the pieces by playing at one of the cells marked "*", which form two [[Bridge|bridges]] between the original pieces.
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The blue player threatens to connect the pieces by either playing c1 or b3:
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<hex>R3 C4 Q1 Ha2 Hd2 Sb3 Sc1</hex>
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which form two [[Bridge|bridges]] between the original pieces.
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The obvious way for the red player to stop the blue is to play either b2 ''or'' c2:
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<hex>Q1 R3 C4 Ha2 Pb2 Pc2 Hd2</hex>
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This is a reasonable defense because either of the two moves (b2 ''or'' c2) will [[Blocking|block]] potential [[Bridge|bridge]] connections using either c1 or b3 (only one example shown):
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The obvious way for the Blue to stop this connection is to play in one of the cells marked "+", which is where Red's threats overlap:
 +
<hexboard size="3x4"
 +
  coords="none"
 +
  edges="none"
 +
  visible="-a1 d3"
 +
  contents="R a2 d2 E +:(b2 c2)"
 +
  />
  
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<hex>Q1 R3 C4 Ha2 Vb2 Bc1 Hd2 Rb1</hex>
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This is a reasonable defense because either of the two moves "+" will [[Blocking|block]] potential [[Bridge|bridge]] connections. Here is an example:
 +
<hexboard size="3x4"
 +
  coords="none"
 +
  edges="none"
 +
  visible="-a1 d3"
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  contents="R a2 d2 B 1:b2 R 2:c1 B 3:b1"
 +
  />
  
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[[category: strategy]]
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[[category: Strategy]]
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[[category: Definition]]

Latest revision as of 21:11, 28 December 2020

There are many different types of loose connections, two of which are described below.

Type I

The pieces on this board can be connected by a bridge by placing a red piece at either of the cells marked "*". These are the same places where Blue can play to try to prevent the connection.

Type II

This connection is a bit weaker than Type I.

Red threatens to connect the pieces by playing at one of the cells marked "*", which form two bridges between the original pieces.

The obvious way for the Blue to stop this connection is to play in one of the cells marked "+", which is where Red's threats overlap:

This is a reasonable defense because either of the two moves "+" will block potential bridge connections. Here is an example:

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