My opponent yesterday evening tried a Teichmann Exchange against me - and guess what - I had covered the line already in an earlier post. And guess another thing - I forgot about it ! But luckily I was able to pull off a nice attack, resulting in a nice win.
Guido De Bouver - Velibor Novakovic
1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.g4 e6 9.g5 Nd5 10.Bd3 Be7 11.h4 Nd7 (diagram)
I covered this position in an earleir post "Black's difficult Teichmann Exchange defense" in May 2011. In there, I suggested 12.Nxd5, leading to an equal game.
12.Bd2 N7b6 13.000 Nxc3 14.Bxc3 Nd5 (diagram)
Black is forced to castle into it
16...g6 17.Bd2 Nb4 18.Bc4 Nd5 19.Kb1
A preparation move, so that the balck queen will not be able to check on g5.
19...b5 20.h5 (diagram)
20....Bxg5 ?? 21.hxg6 1-0
So we see that Blackmar Diemer gambiteers dont necessarily have to play the best moves to create dispair in the defending ranks.