Sunday, December 22, 2013

Yet another improvement

I was looking for improvements on my game last week, where my opponent was baffled by my audacious 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bh5 7.g4 Bg6 8.Ne5 e6 9.Qf3 Nd5 10.Bb5+ c6 11.0-0.

My opponent choose the inferior 11...f6, but I realised black would get trhe upper hand aftre the correct 11...Nf6, as 12.Rf2 complicates things even further, but black remains on top after the simple 12...Be7.

But now I see that 11.0-0 is in fact the bad move ! 11.Rf1 (diagram) is much stronger.

a/ 11...Qh4+ 12.Kd1
...a1/ 12...cxb5 13.Nxd5 (++)
...a2/ 12...Nxc3+ 13.bxc3 (+=)
...a3/ 12...Be7 13.Nxd5 (+=)
...a4/ 12...f6 13.Nxd5 (++)
...a5/ 12...Qf6 13.Qg2 (=)
...a6/ 12...Qe7 13.Nxd5 (++)
...a7/ 12...Bd6 13.Nxg6 (++)

b/ 11...cxb5 12.Nxg6 (++)

c/ 11...Nf6 12.Be2 (=)

d/ 11...Qf6 12.Nxd5
...d1/ 12...exd5 13.Qxd5 (+=)
...d2/ 12...Qxf3 13.Nc7+ Kd8 14.Rxf3 Kxc7 15.Nxf7 (+)

e/ 11...f6 12.Nxg6 hxg6 13.Bd3 (=)

f/ 11...f5 12.Nxd5 
...f1/ 12...Qxd5 13.Qxd5 exd5 14.Bd3 (+=)
...f2/ 12...exd5 13.Bd3 (+=)

So it seems to me that 11.Rf1 is much stronger than 11.0-0. There is no advantage in sight for black and he will soon be drowning the terrible complications against a well prepared attacker.

Also, black can hold in three lines :
> 11...Qh4+ 12.Kd1 Qf6 Qg2
> 11...Nf6 12.Be2
> 11...f6 12.Nxg6 hxg6 13.Bd3

My next post will focus on these lines.

Monday, December 16, 2013

The jungle of variations

Yesterday afternoon I played an interesting Blackmar Diemer - I didnt win the game, as I lost the way in the jungle of variations myself.

Guido De Bouver - Patrick Colemont
Belgian interclubs. 15-dec-2013.

1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bh5 7.g4 Bg6 8.Ne5 e6 9.Qf3
All according to plan - the Teichmann defense

9...Nd5?! (diagram)

Luckily I remembered a great attacking line.
10.Bb5+ c6 11.0-0 (diagram)

11..f6 ?!
The correct move is 11...Nf6 and black should be better somehow, even if 12.Rf2 complicates things for black.

12.Nxg6 hxg6 (diagram)

Now it was turn to make an inferior move :-(
13.Nxd5 ?
The correct move 13.Bd3 should gave given me a small advantage

13...Nxd5 14.Bd3 (diagram)

The defender is better now, but black choose the inferior 14...Kf7.

The remainder of the game was quite spectacular after 15.Be4 Qxd4+ 16.Be3 Qe5, but I was able to secure a draw in a complicated queen versus two rooks endgame.

In any case, I will have to find a decent continuation after black's best move 11.Nf6