Difference between revisions of "Edge template IV3b"

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(Created page with "The template: <hexboard size="4x6" coords="hide" contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 E *:d2 E *:a3" /> If the middle red piece is removed, t...")
 
(Converted to new hexboard diagrams)
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The template:
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Template IV3-b is a 4th row [[edge template]] with 3 stones.
  
 
<hexboard size="4x6"
 
<hexboard size="4x6"
 
   coords="hide"
 
   coords="hide"
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 E *:d2 E *:a3"
+
   edges="bottom"
 +
  visible="-area(a1,a3,c1)"
 +
  contents="R d1 R e1 R f1 S d2"
 
   />
 
   />
 +
The shaded cell is not part of the template and can be occupied by Blue.
  
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each others in some other way.
+
If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each other in some other way.
  
 
(From: [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk])
 
(From: [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk])
 +
 +
== Defending the template ==
 
    
 
    
 
Red has this threat:
 
Red has this threat:
  
 
<hexboard size="4x6"
 
<hexboard size="4x6"
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 E *:d2 E +:e2 E +:f2 E *:a3 R 1:e3 E +:d4 E +:e4"
+
  coords="hide"
 +
  edges="bottom"
 +
  visible="-area(a1,a3,c1)"
 +
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 S d2 E +:e2 E +:f2 E *:a3 R e3 E +:d4 E +:e4"
 
   />
 
   />
  
 
For trying to block the connection Blue has to play on the 5 fields used by that threat.
 
For trying to block the connection Blue has to play on the 5 fields used by that threat.
  
 +
<hexboard size="4x6"
 +
  coords="hide"
 +
  edges="bottom"
 +
  visible="-area(a1,a3,c1)"
 +
  contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 S d2 E y:e2 E x:f2 E *:a3 E x:e3 E z:d4 E x:e4"
 +
  />
  
Moves 1-3 (f2, e3, e4):
+
If Blue moves in any of the 3 cells marked x, Red has the same response:
 
+
These 3 moves can be covered in a single line of play by Red:
+
  
 
<hexboard size="4x6"
 
<hexboard size="4x6"
 
   coords="hide"
 
   coords="hide"
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 R 4:c2 E *:d2 B 3:e2 B 1:f2 E *:a3 R 2:d3 B 1:e3 B 1:e4"
+
  edges="bottom"
 +
  visible="-area(a1,a3,c1)"
 +
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 R 4:c2 S d2 B 3:e2 B 1:f2 E *:a3 R 2:d3 B 1:e3 B 1:e4"
 
   />
 
   />
  
Red 4 is connected to the bottom by [[Edge_template_III2e|III-2-e]].
+
Red 4 is connected to the bottom by [[Edge_template_III2e|template III2-e]].
  
Move 4 (e2):
+
If Blue moves at y:
  
 
<hexboard size="4x6"
 
<hexboard size="4x6"
 
   coords="hide"
 
   coords="hide"
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 R 2:c2 E *:d2 B 1:e2 E +:f2 E *:a3 R 4:c3 E +:d3 R 6:e3 B 3:b4 B 5:c4"
+
  edges="bottom"
 +
  visible="-area(a1,a3,c1)"
 +
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 R 2:c2 S d2 B 1:e2 E +:f2 E *:a3 R 4:c3 E +:d3 R 6:e3 B 3:b4 B 5:c4"
 
   />
 
   />
  
Red 6 is connected to the top by the two fields marked with +.
+
Red 6 is connected to the top by double threat at the two fields marked "+".
  
Move 5 (d4):
+
If Blue moves at z:
  
 
<hexboard size="4x6"
 
<hexboard size="4x6"
 
   coords="hide"
 
   coords="hide"
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 E +:c2 E *:d2 E *:a3 R 4:c3 E +:d3 R 2:e3 B 1:d4 B 3:e4"
+
  edges="bottom"
 +
  visible="-area(a1,a3,c1)"
 +
   contents="E *:a1 E *:b1 E *:c1 R d1 R e1 R f1 E *:a2 E *:b2 E +:c2 S d2 E *:a3 R 4:c3 E +:d3 R 2:e3 B 1:d4 B 3:e4"
 
   />
 
   />
  
Red 4 is connected to the top by the two fields marked with +.
+
Red 4 is connected to the top by double threat at the two fields marked "+".
  
== See also ==
 
  
 
[[category:edge templates]]
 
[[category:edge templates]]

Revision as of 18:14, 11 December 2020

Template IV3-b is a 4th row edge template with 3 stones.

The shaded cell is not part of the template and can be occupied by Blue.

If the middle red piece is removed, the template stays valid, as long as the two remaining stones are connected to each other in some other way.

(From: www.drking.org.uk)

Defending the template

Red has this threat:

For trying to block the connection Blue has to play on the 5 fields used by that threat.

yxxzx

If Blue moves in any of the 3 cells marked x, Red has the same response:

431211

Red 4 is connected to the bottom by template III2-e.

If Blue moves at y:

214635

Red 6 is connected to the top by double threat at the two fields marked "+".

If Blue moves at z:

4213

Red 4 is connected to the top by double threat at the two fields marked "+".