Difference between revisions of "Edge template IV2i"

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(Added disambiguation, since IV2I and IV2l look the same in sans serif fonts.)
(Simplified and converted to new hexboard diagrams)
 
Line 3: Line 3:
 
The template:
 
The template:
  
−
<hexboard size="4x5"
+
<hexboard size="4x4"
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  coords="hide"
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  visible="-(a1 a2 a3 b1)"
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  contents="E *:a1 E *:b1 E *:c1 R e1 E *:a2 E *:b2 R c2 E *:a3 E *:e3 E *:e4"
+
  edges="bottom"
−
  />
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  coords="none"
 +
  contents="R c1 d2"
 +
/>
 
    
 
    
−
(From: [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk])
+
(mirror-image of template from [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk])
  
−
Red has two threats:
+
Red defends the bridge,
  
−
<hexboard size="4x5"
+
<hexboard size="4x4"
−
  coords="hide"
+
  visible="-(a1 a2 a3 b1)"
−
  contents="E *:a1 E *:b1 E *:c1 E +:d1 R e1 E *:a2 E *:b2 R c2 E +:d2 E *:a3 R 1:b3 E *:e3 E +:a4 E +:b4 E *:e4"
+
  edges="bottom"
−
  />
+
  coords="none"
 +
  contents="R c1 d2 2:d1 B 1:c2"
 +
/>
  
 +
and then has two threats:
 +
 +
<hexboard size="4x4"
 +
  visible="-(a1 a2 a3 b1)"
 +
  edges="bottom"
 +
  coords="none"
 +
  contents="R c1 d2 2:d1 4:d3 B 1:c2 E +:c4 +:d4"
 +
/>
 
and
 
and
 +
<hexboard size="4x4"
 +
  visible="-(a1 a2 a3 b1)"
 +
  edges="bottom"
 +
  coords="none"
 +
  contents="R c1 d2 2:d1 4:b3 B 1:c2 E +:(a4 b2 b4 c3)"
 +
/>
  
−
<hexboard size="4x5"
+
Because there is no common [[hex (board element)|hex]] used in both threats, Blue cannot prevent Red from connecting to the bottom.
−
  coords="hide"
+
−
  contents="E *:a1 E *:b1 E *:c1 R e1 E *:a2 E *:b2 E +:d2 E +:e2 E *:a3 R 1:d3 E *:e3 E +:c4 E +:d4 E *:e4"
+
−
  />
+
−
 
+
−
For a blocking attempt Blue has to play on the overlap field:
+
−
 
+
−
<hexboard size="4x5"
+
−
  coords="hide"
+
−
  contents="E *:a1 E *:b1 E *:c1 R 4:d1 R e1 E *:a2 E *:b2 R c2 B 1:d2 B 3:e2 E *:a3 R 2:d3 E *:e3 E *:e4"
+
−
  />
+
−
 
+
−
Red is now connected to the bottom by [[Edge_template_III2e|III-2-e]].
+
  
 
== See also ==
 
== See also ==
  
 
[[category:edge templates]]
 
[[category:edge templates]]

Latest revision as of 00:26, 9 December 2020

This page is about edge template IV2i (four two eye). There is also an edge template IV2l (four two ell).

The template:

(mirror-image of template from www.drking.org.uk)

Red defends the bridge,

21

and then has two threats:

214

and

214

Because there is no common hex used in both threats, Blue cannot prevent Red from connecting to the bottom.

See also

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