Difference between revisions of "Template VI1/Intrusion on the 3rd row"

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(moved contents)
 
(Third-row followup: i4: reorganized a little bit)
Line 41: Line 41:
  
 
Bh5  MR Mi5 Mi4 Mk3  
 
Bh5  MR Mi5 Mi4 Mk3  
  Pj5 Pk4 Pl4
+
Pj4    Pl4
 +
  Pj5
 
</hex>
 
</hex>
  
Red threatens to play at "+" points above, with these two templates:
+
=== Figuring out the [[Must-play region]]===
 +
Red threatens to play at "+" points above, with these templates:
  
 
<hex>
 
<hex>
Line 58: Line 60:
 
  Rj5
 
  Rj5
 
Pk4 Pj4
 
Pk4 Pj4
Ph6 Pi6 Pj6 Pg7 Ph7 Pi7
+
Pk5
 +
Ph6     Pj6 Pk6
 +
Pg7 Ph7 Pj7 Pk7
 
</hex>
 
</hex>
  
 
 
Edge template IV1a
 
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 74: Line 75:
  
 
Bh5  Ri5 Bi4 Rk3  
 
Bh5  Ri5 Bi4 Rk3  
  Rl4
+
  Rj5
                         
+
Pk4 Pj4
                  Pl3
+
Ph6 Pi6 Pj6  
              Pk4             Pm4
+
Pg7 Ph7 Pi7
          Pj5    Pk5    Pl5    Pm5    Pn5
+
      Pi6     Pj6     Pk6    Pl6    Pm6    Pn6
+
  Ph7     Pi7     Pj7    Pk7      Pl7    Pm7    Pn7
+
 
</hex>
 
</hex>
  
We need only consider the intersection of these two templates
 
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 94: Line 91:
  
 
Bh5  Ri5 Bi4 Rk3  
 
Bh5  Ri5 Bi4 Rk3  
Pj5
+
Rj4
Pk4
+
Pj5
Pi6 Pj6
+
Ph6 Pi6 Pj6  
Ph7 Pi7
+
Pg7 Ph7 Pi7 Pj7
 
</hex>
 
</hex>
  
=== Third-row followup i4 and incursion at k4 ===
+
 
 +
[[Edge template IV1a]]
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 111: Line 109:
  
 
Bh5  Ri5 Bi4 Rk3  
 
Bh5  Ri5 Bi4 Rk3  
MB Mk4 Mj4
+
Rl4
Pj5 Ph6 Pi6 Pj6
+
                         
Pg7 Ph7 Pi7 Pj7
+
                  Pl3
 +
              Pk4            Pm4
 +
          Pj5     Pk5    Pl5    Pm5    Pn5
 +
      Pi6     Pj6     Pk6    Pl6    Pm6    Pn6
 +
  Ph7     Pi7     Pj7     Pk7      Pl7    Pm7    Pn7
 
</hex>
 
</hex>
  
=== Third-row followup i4 and incursion at j5 ===
+
We need only consider the intersection of these templates.
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 127: Line 129:
  
 
Bh5  Ri5 Bi4 Rk3  
 
Bh5  Ri5 Bi4 Rk3  
MB Mj5 Mj4 Mh7 Mi6 Mi7 Mk6
+
Pj5
Pj6 Pl4
+
  Pj6
 +
Ph7
 
</hex>
 
</hex>
  
=== Third-row followup i4 and incursion at i6 ===
+
=== Incursion at j5 ===
 
+
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 143: Line 145:
  
 
Bh5  Ri5 Bi4 Rk3  
 
Bh5  Ri5 Bi4 Rk3  
MB Mi6 Mj5
+
MB Mj5 Mj4 Mh7 Mi6 Mi7 Mk6
Ph6 Pj6
+
Pj6 Pl4
 
</hex>
 
</hex>
  
=== Third-row followup i4 and incursion at j6 ===
+
=== Incursion at j6 ===
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 162: Line 164:
 
</hex>
 
</hex>
  
=== Third-row followup i4 and incursion at h7 ===
+
=== Incursion at h7 ===
 
<hex>
 
<hex>
 
R7 C14 Q0
 
R7 C14 Q0
Line 177: Line 179:
 
Pk6 Pl6 Pm6
 
Pk6 Pl6 Pm6
 
Pj7 Pk7 Pl7 Pm7
 
Pj7 Pk7 Pl7 Pm7
</hex>
 
 
=== Third-row followup i4 and incursion at i7 ===
 
<hex>
 
R7 C14 Q0
 
1:BBBBBBBBBRBBBBB
 
Sa2 Sb2 Sc2 Sd2 Se2 Sf2 Sg2 Sh2 Rj2 Sl2 Sm2 Sn2
 
Sa3 Sb3 Sc3 Sd3 Se3 Sf3 Sm3 Sn3
 
Sa4 Sb4 Sc4 Sd4 Sn4
 
Sa5 Sb5
 
Sa6
 
 
Bh5  Ri5 Bi4 Rk3
 
MB Mi7 Mj5
 
Ph6 Pk6
 
 
</hex>
 
</hex>
  

Revision as of 07:08, 7 March 2009

Red should go here:

1

The Red 1 hex is connected to the bottom, and threatens to connect to the top through either one of the "+" hexes. Thus these are the only important incursions. An incursion to the right of the number 1 hex is important only in connection with the two indicated here, and will be seen in the treatement below transposed into the sequel.

Third-row followup: i4

321

Figuring out the Must-play region

Red threatens to play at "+" points above, with these templates:


Edge template IV1a

We need only consider the intersection of these templates.

Incursion at j5

214635

Incursion at j6

21

Incursion at h7

435621

Third-row followup: j3 (stub)

21