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.