White is a pawn ahead, and has both bishops trained on
Black's kingside. Black appears to have plenty of pieces to
defend with, however, so White would like to add some fuel to this
fire.
1.Bf4 e5
When contemplating this sequence White has originally feared this
move, which attacks the f4-bishop with the pawn while at the same time
uncovering an attack by the c8-bishop against the white queen.
2.Qh5
A fantastic zwischenzug! Zwischenzugs, or in-between moves, are
sometimes hard to see, because when we are looking at a combination,
we tend to think everything involves a check or a capture, but a quiet
move that doesn't capture anything and that doesn't give check can
easily be overlooked.
What the queen move does is every
bit as important for Black to consider as a capture or check though.
In this case, White now threatens mate-in-three with 3.Bxh7+ Kh8
4.Bg6+ Kg8 5.Qh7 mate.
That's an important mating
pattern to remember, because most beginners will want to rush in with
the queen first; play through the sequence after 3.Qxh7+ though and
you'll see that while it also wins for White, it's no mate-in-three.
2...g6 3.Bd5+
It is quite telling about this position that according to Herr Fritz,
the ridiculous looking move 3...Qf7 is actually Black's best.
3...Kh8 4.Bxe5
Skewering the b8-rook, while the f6-bishop is pinned against the rook.
Meanwhile, the queen is left en prise!
4...gxh5
If 4...Bxe5 5.Rxf8+ Kg7 6.Rg8+ Kf6 7.Rf1+ Bf5 8.Qh4+ g5 9.Qxg5
checkmate.
5.Bxc7 Ra8
It looks like Black's come through the fire relatively unscathed.
He lost another pawn and his kingside pawn structure is smashed, but
he survived the attack without losing so much as a piece. Right?
Wrong! White has one last little trick left:
6.Rxf6 Rxf6 7.Be5
Pinning the rook, but Black still thinks he can survive this little
exchange by bringing his king to the defense of the rook - after Bxf6
Kxf6 all White will have accomplished is an exchange of pieces.
7...Kg7 8.Rf1
White's last surprise for Black - ganging up on the poor pinned rook.
Black's poor development in the beginning of the game, leaves him one
piece short of defending here at the ending of the game. Note
that two of Black's pieces have never moved in this game!
1-0
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