A man with a mission

In column "A subtle difference" we looked at the subtle difference between the Teichmann and Gunderam lines. A small difference indeed, but with important consequences. We learned that, in the Gunderam, white should refrain from the normal "Teichmann" continuation 12.00 and choose 12.Rf1 (diagram) instead in the position occuring after 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bf5 6.Ne5 e6 7.g4 Bg6 8.Qf3 c6 9.g5 Nd5 10.Bd3 Qc7 11.Bxg6 hxg6.

It seems to me that black's only reply is 12...Bb4 13.Bd2 00 14.Nxd5 Bxd2 15.Kxd2 cxd5 16.Nxg6 (diagram)

All of these moves seem to be forced for black, so let's look at the above position :

a/ 16...Nc6 17.Nxf8 Nxd4 18.Qd3
...a1/ 18...Qxh2+ 19.Kd1 (=)
...a2/ 18...Nf5 19.Nxe6 (+=)

b/ 16...Rc8 17.Ne5
...b1/ 17...Qxc2+ 18.Ke3 Qf5 19.Qxf5 exf5 20.Rxf5 (=)
...b2/ 17...Nc6 18.Qxf7+ Qxf7 19.Nxf7 Nxd4 20.c3 (=)

c/ 16...Re8 17.Ne5 Nc6 18.Qxf7+ Qxf7 19.Nxf7
...c1/ 19...Re7 20.g6 Nxd5 21.Rae1 (+=)
...c2/ 19...Rf8 20.g6 Nxd5 21.Rae1 (+=)
...c3/ 19...Nxd5 20.Rae1 (+=)

Seems like interesting positions for players with a mission !