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