Template VI1/Intrusion on the 4th row

This page is devoted to details on how to defend against intrusions in template VI. This page explores what are the possibilities for Red to defend the template when Blue intrude on the 4th row.

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

Bi4

Red should move here (or the equivalent mirror-image move at "+"):

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

Bi4 Rh3 Pk3

Elimination of irrelevant Blue moves
This gives Red several immediate threats: From III1a: 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

Bi4 Rh3 Rg5 Pg4 Ph4 Ph5 Pf6 Pg6 Ph6 Pe7 Pf7 Pg7 Ph7

From III1a again: 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

Bi4 Rh3 Rg5 Pg4 Ph4 Pf5 Pe6 Pf6 Pg6 Pd7 Pe7 Pf7 Pg7

From III1b : 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

Bi4 Rh3 Rg5 Pg4 Ph4 Pf5 Ph5 Pe6 Pf6 Pg6 Ph6 Pd7 Pe7 Pg7 Ph7

From IV1a: 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

Bi4 Rh3 Rg4 Pf4 Pd5 Pe5 Pf5 Pg5 Ph5 Pc6 Pd6 Pe6 Pf6 Pg6 Ph6 Pb7 Pc7 Pd7 Pe7 Pf7 Pg7 Ph7

From IV1b: 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

Bi4 Rh3 Rg4 Pf4 Ph4 Pd5 Pe5 Pf5 Pg5 Ph5 Pi5 Pc6 Pd6 Pe6    Pg6 Ph6 Pi6 Pb7 Pc7 Pd7 Pe7 Pf7 Pg7 Ph7 Pi7

The intersection of all of these leaves: R7 C14 Q1 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

Bi4 Rh3 Pg4 Pg5 Pg6 Pe7 Pg7

Specific defense
So we must deal with each of these responses. (Which will not be too hard!)

Bg4
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

Bi4 Rh3

N:on Bg4 Rh4 Bg6 Rh5 And now either 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

Bi4 Rh3

Bg4 Rh4 Bg6 Rh5 N:on Bh6 Rj5 Pk3 Pi5

or

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

Bi4 Rh3

Bg4 Rh4 Bg6 Rh5 N:on Bh7 Rh6 Bg7 Rj6 Bi6 Rj5 Pk3 Pi5

Bg5
R7 C14 Q1 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

Bi4 Rh3

N:on Bg5 Rf4 Threatening: R7 C14 Q1 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

Bi4 Rh3 Bg5 Rf4 Pe4 Pc5 R4d5 Pe5 Pb6 Pc6 Pd6 Pa7 Pb7 Pc7 Pd7 R7 C14 Q1 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

Bi4 Rh3 Bg5 Rf4 Pe5 Pf5 R4e6 Pd7 Pe7

R7 C14 Q1 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

Bi4 Rh3 Bg5 Rf4 Pd5 R4e5 Pf5 Pc6 Pd6 Pe6 Pf6 Pb7 Pc7    Pe7 Pf7 So the only hope for Blue lies in the intersection of the threats, Be5, but it is unsufficient:

R7 C14 Q1 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

Bi4 Rh3 Bg5 Rf4 N:on Be5 Rf5 Be7 Rf6 Bf7 Rg6 Bg7 Rj5 Pk3 Pi5

Bg6
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

Bi4 Rh3

N:on Bg6 Rg5 Bf6 Rh5 Pe7

3 could be played at + with the same effect; in any case now either

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

Bi4 Rh3

Bg6 Rg5 Bf6 Rh5 N:on Bh6 Rj5 Pi5 Pk3

or

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

Bi4 Rh3

Bg6 Rg5 Bf6 Rh5 N:on Bh7 Rh6 Bg7 Rj6 Bi6 Rj5 Pk3 Pi5

Be7
Either this 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

Bi4 Rh3

N:on Be7 Rg5 Bg6 Rh5 Bh6 Rj5 Pi5 Pk3

or a minor variation

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

Bi4 Rh3

N:on Be7 Rg5 Bg6 Rh5 Bh7 Rh6 Bg7 Rj6 Bi6 Rj5 Pi5 Pk3

Bg7
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

Bi4 Rh3

N:on Bg7 Rg5 Bf6 Rh6 Bh7 Rj6 Bi6 Rj5 Pi5 Pk3