1.e4
c5
2.Nc3
a6
Against a young opponent, the grandmaster takes the game out of book
3.f4
A fine reaction, aiming for a closed Sicilian in which a6 is not a useful tempo
3...b5
I would have a long talk with my students about such play.
4.d3
Again, the right reaction, often with g3 and Bg2
4...Bb7
5.Be2
e6
6.Nh3
Nothing wrong with Nf3. White likes the look of Nf2 and g4-g5
6...b4
7.Nb1
Heading to f3
7...Nf6
8.Nd2
Be7
9.0-0
Nc6
10.c4
Stopping ...d5, but Nf3 or Nf2 might have been more consistent
10...0-0
11.b3
This works well. The black king is suddenly in danger. Bb2 and g4 are looming
11...d6
12.Bb2
a5
13.Nf2
a4
14.Nf3
Nd7
15.g4
Bf6
To exchange off white's powerful bishop and with the idea of axb3
16.Qd2
well played. Replacing one dark-squared movers with another
16...Bxb2
17.Qxb2
Qf6
18.Qxf6
Nxf6
Black has succeeded in trading off some pieces, but white's attack continues.
19.Rfd1
g4-g5
19...Ra7
20.Rab1
Rfa8
21.d4
axb3
22.axb3
Ra2
23.Kf1
h5
24.h3
hxg4
25.hxg4
cxd4
26.Nxd4
Nxd4
27.Rxd4
e5
28.Rxd6
Nxe4
29.Nxe4
Bxe4
30.Rc1
exf4
31.Rd4
Diagram There's a story here... Rohde must have nervous about the passed c-pawn, but black has a win here [31.Rd4
Re8
32.c5
Bg2+!
33.Kxg2
Rexe2+
34.Kf3
g5
35.Rd3
Rac2-/+
] 1/2-1/2