Difference between revisions of "Edge template IV2b"

Latest revision as of 17:02, 14 February 2022

Template IV2-b is a 4th row edge template with 2 stones:

Red has two main threats:

and

These threats overlap at only one hex, marked "x":

If Blue plays at x:

Then Red is connected by a crescent.

@@ Line 1: / Line 1: @@
-== The Edge template IV2b ==
+Template IV2-b is a 4th row [[edge template]] with 2 stones:
-<hex> R4 C5
-Sa1 Sb1 Vc1   Se1
- Sa2 Vb2
-  Sa3 </hex>
-Red has two threats:
+<hexboard size="4x5"
+  coords="none"
+  edges="bottom"
+  visible="-a1--a3 b1 e1"
+  contents="R c1 b2"
+  />
-<hex> R4 C5 Sa1 Sb1 Vc1 Vb3 Pa4 Pb4 Se1 Sa2 Vb2 Sa3 </hex>
+== Defending the template ==
+Red has two main threats:
+<hexboard size="4x5"
+  coords="none"
+  edges="bottom"
+  visible="-a1--a3 b1 e1"
+  contents="R c1 b2 R b3 E +:a4 +:b4"
+  />
 and
-<hex> R4 C5 Sa1 Sb1 Vc1 Vd2 Pd1 Pc2 Pe2 Pc3 Pd3 Pe3 Pb4 Pc4 Pd4 Pe4 Se1 Sa2 Vb2 Sa3 </hex>
+<hexboard size="4x5"
+  coords="none"
+  edges="bottom"
+  visible="-a1--a3 b1 e1"
+  contents="R c1 b2 R d2 E +:(d1 c2 b4--e4 c3--e3 e2)"
+  />
+These threats overlap at only one hex, marked "x":
+<hexboard size="4x5"
+  coords="none"
+  edges="bottom"
+  visible="-a1--a3 b1 e1"
+  contents="R c1 b2 E x:b4"
+  />
+If Blue plays at x:
-These threats overlap on one hex at b4:
+<hexboard size="4x5"
+  coords="none"
+  edges="bottom"
+  visible="-a1--a3 b1 e1"
+  contents="R c1 b2 B 1:b4 R 2:b3 B 3:a4 R 4:d3"
+  />
-<hex> R4 C5 Sa1 Sb1 Vc1 H1b4 V2b3 H3a4 V4d3 Se1 Sa2 Vb2 Sa3 </hex>
+Then Red is connected by a [[crescent]].
-The d3 piece is connected to the bottom, and connects to the template pieces through either c3, or a bridge with d2.
+[[category:edge templates]]