A dance with the queen
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A fun game with some interesting tactical lesson about queen walking.
I don't really understand your comments at 7...Nxf2. After a quick calculation, I think Black is simply a Knight down and its sacrifice proved to be bad.
On the other hand, I like your 11.Be3. 11.Qe3 would have saved the b2-pawn and white pawn structure but I think it's better to speed up developement of pieces.
The comments make sense at the conclusion of the sequence. (One pawn advantage though, not two). Look at the position after 12. Nd2. Black has more pawns, but white has the minor piece, so white is approximately one pawn up. But most important is whites lead in development. White must strike fast before this dynamic advantage dissapates. Moves like 11. Be3 are exactly the thing that white needs to be doing to make his advantage tell.
I think we agree on the value of 11.Be3
Counting on pawns ( 1 Knight =3pawns) looks to me rather inadequate in such positions. White's advantage is large after 12.Nd2 and won't dissipate that fast : in an open position being a knight up + the bishop pair and black's king much more insecure than white's as you demonstrated it.
I like 9.Kxf3! after which Black has nothing. 9....Qh4 then 10.Bf4 followed by consolidation. White's position becomes quite good quickly with Pg3 then go to g2 with the king. Black will have lots of problems. The F file is open and white is a piece up to boot.
I like it too ! Though not natural, it's true that Black has nothing then.
