1. Rd6!
Pins the black queen and as black does not like to lose this game, the
next move is forced
1. ... Qxd6 2. Qxg4+ Kf7
(see next diagram)
a
b
c
d
e
f
g
h
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
a
b
c
d
e
f
g
h
Now the white queen is pinned and cannot escape, but
3. Qxg7+!
solves the problem. After
3. ... Kxg7 4. Nf5+
white is just a knight and a pawn up.
(see next diagram)
a
b
c
d
e
f
g
h
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
a
b
c
d
e
f
g
h
1-0
It's nice to see all black pieces go from the board, isn't it?