Edge template IV3c - Revision history

Selinger: /* Defending the template */ Added a link

2022-02-06T23:06:17Z

‎Defending the template: Added a link

Selinger: Added a section header; minor editing

2020-12-07T23:57:36Z

Added a section header; minor editing

Selinger: Fixed typo in diagram.

2020-12-07T23:48:07Z

Fixed typo in diagram.

Demer: simplified this article's new diagram code

2020-12-07T23:23:22Z

simplified this article's new diagram code

Demer: Converted to new hexboard diagrams; gave simpler line for second attempt

2020-12-07T22:52:37Z

Converted to new hexboard diagrams; gave simpler line for second attempt

Richyfourtytwo: Created page with "The template: (From: [http://www.drki..."

2016-05-17T17:28:05Z

Created page with "The template: <hexboard size="4x6" coords="hide" contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 E *:a3 R b3" /> (From: [http://www.drki..."

New page

The template:

<hexboard size="4x6"
coords="hide"
contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 E *:a3 R b3"
/>

(From: [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk])

Red has two main threats:

<hexboard size="4x6"
coords="hide"
contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 E +:e2 E +:f2 E *:a3 R b3 R 1:e3 E +:d4 E +:e4"
/>

and

<hexboard size="4x6"
coords="hide"
contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 R 1:e2 E *:a3 R b3 E +:c3 E +:d3 E +:a4 E +:b4 E +:c4 E +:d4"
/>

using [[Edge_template_III2e|III-2-e]]

For trying to block the connection Blue has to play on the overlap:

<hexboard size="4x6"
contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 E +:e2 E *:a3 R b3 E +:d4"
/>

First attempt (d4):

<hexboard size="4x6"
coords="hide"
contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 B 1:e2 R 2:f2 E *:a3 R b3 R 8:c3 R 6:d3 R 4:e3 B 7:c4 B 5:d4 B 3:e4"
/>

Second attempt (b4):

<hexboard size="4x6"
coords="hide"
contents="E *:a1 E *:b1 E *:c1 E *:d1 E *:e1 R f1 E *:a2 E *:b2 E *:c2 R d2 E *:a3 R b3 R 6:c3 R 4:d3 R 2:e3 B 5:c4 B 1:d4 B 3:e4"
/>

== See also ==

[[category:edge templates]]

@@ Line 29: / Line 29: @@
 The second threat uses [[Edge_template_III2e|edge template III-2-e]].
-To try to block the connection, Blue must play in the overlap:
+To try to block the connection, Blue [[mustplay region|must play]] in the overlap:
 <hexboard size="4x6"

@@ Line 1: / Line 1: @@
-The template:
+Template IV3c is a 3-stone 4th row [[edge template]]:
 <hexboard size="4x6"
@@ Line 10: / Line 10: @@
 (From: [http://www.drking.org.uk/hexagons/hex/templates.html www.drking.org.uk])
-Red has two main threats:
+== Defending the template ==
 <hexboard size="4x6"
@@ Line 16: / Line 18: @@
     edges="bottom"
     coords="hide"
-    contents="R b3 d2 f1 1:e3 E +:(e2 f2 d4 e4)"
+    contents="R b3 d2 f1 1:e3 S (f1 e2 f2 e3 d4 e4)"
     />
 and
 <hexboard size="4x6"
     visible="area(a4,b3,c3,d2,e2,f1,f4)"
     edges="bottom"
     coords="hide"
-    contents="R b3 d2 f1 1:e2 E +:(a4 b4 c3 c4 d3 d4)"
+    contents="R b3 d2 f1 1:e2 S (f1 e2 d2 b3 a4 b4 c3 c4 d3 d4)"
     />
+The second threat uses [[Edge_template_III2e|edge template III-2-e]].
-using [[Edge_template_III2e|III-2-e]].
-For trying to block the connection Blue has to play on the overlap:
+To try to block the connection, Blue must play in the overlap:
 <hexboard size="4x6"

@@ Line 16: / Line 16: @@
     edges="bottom"
     coords="hide"
-    contents="R b3 d2 f1 1:e3 E +(e2 f2 d4 e4)"
+    contents="R b3 d2 f1 1:e3 E +:(e2 f2 d4 e4)"
     />

@@ Line 16: / Line 16: @@
     edges="bottom"
     coords="hide"
-    contents="R b3 d2 f1 1:e3 E +:e2 +:f2 +:d4 +:e4"
+    contents="R b3 d2 f1 1:e3 E +(e2 f2 d4 e4)"
     />
@@ Line 25: / Line 25: @@
     edges="bottom"
     coords="hide"
-    contents="R b3 d2 f1 1:e2 E +:a4 +:b4 +:c3 +:c4 +:d3 +:d4"
+    contents="R b3 d2 f1 1:e2 E +:(a4 b4 c3 c4 d3 d4)"
     />