A Classical Stonewall

My third game was encouraging. Not because I played particularly well but because I felt I knew what was going on in a type of position I have studied a lot lately.

Juniel Hutapea - Sv.Johnsen
BCC Thailand Open (3)
1.d4 f5 2.c4 e6 3.Nf3 Nf6 4.g3 d5 5.Bg2 c6 6.0–0 Bd6 (D)
The Modern Dutch Stonewall is on the board.
7.Nc3
Until 15 years ago or so this move was considered inaccurate against the Stonewall as the knight is a long way from e5 and doesn’t support the bishop exchange on a3. Now it’s considered a quite dangerous weapon.
7...0–0 8.b3
White’s most powerful follow-up to his previous move is a quick queenside initiative with Qc2, Rb1 and b4.
8...Bd7!?
This old-fashioned bishop manoeuvre has lately been less popular than the more dynamic plan involving ...b6 and ...Bb7.
9.Qc2 Ne4
This move shields the f-pawn so I can move my bishop to e8 and still recapture with my e-pawn should White exchange on d5.
10.Ne5
Two other tries are:
a) 10.Bb2 Be8 11.Ne5 Nd7 12.f3 Bxe5 13.Nxe4 Bc7 14.Nf2 f4 15.gxf4 Bxf4 16.e4 Bg6 =+ Szeberenyi-Szabolcsi, Budapest 2000
b) 10.Bf4 Be8 11.Bxd6 Nxd6 12.c5 Ne4 13.e3 Nd7 14.b4 a6 15.Ne5 Nxe5 16.dxe5 Bg6 17.Ne2 a5 18.f3 Ng5 19.f4 Ne4 = Peyrou Olya-Moosavian, Iran 2000.
10...Be8
This seems more consistent than the unprovoked exchange 10...Nxc3 11.Qxc3 of Karayannis-Georgiakakis, Chania 1995. After 11...Be8 12.Nd3 Nd7 13.a4 g5 14.a5 a6 15.Bb2 Qf6 16.b4 Bh5 17.Rae1 chances were balanced.
11.f3 Nxc3
11...Nf6, keeping more pieces on board trying to take advantage of White’s weakened king’s position is a serious alternative. Sop-Bejatovic, Kemer 2007 went 12.Nd1 Nbd7 13.Bb2 Rc8 14.Nf2 c5 15.Nxd7 Qxd7 16.Qd3 Bg6 17.dxc5 f4 18.Qd2 fxg3 19.hxg3 Bxg3 and Black was a little better.
12.Qxc3 Nd7
Normally Black should meet f3 with a quick ...c5 but I was also tempted by ...f4 or even ...dxc4 followed by ...e5, so I continued developing.
13.Nd3 Qe7 14.Bb2 Bg6 15.Kh1 (D)
15...f4!?
Possibly 15...Rac8 16.Qa5 a6 is a safer way to proceed.
16.Nxf4 Bxf4 17.gxf4 Rxf4 18.a4 Qh4 19.Bc1 Rf5 20.Be3 Rh5 21.Bg1
Maybe White assumed that his kingside fortress now was safe forever?
21...Rf8 22.a5
22.Qb4 Nf6 23.Qxb7 leads to play similar to the game after 23...Rh6 24.Qxc6 Nh5, e.g. 25.Bf2 Ng3+ 26.Bxg3 Qxg3 27.Qxe6+ Kh8 (27...Bf7? 28.Qxh6+-) 28.Kg1 Qxh2+ 29.Kf2 Qh4+ 30.Kg1 Bf5 and Black wins (31.Qxd5 Qh2+ 32.Kf2 Rg6 33.Rg1 Qg3+ 34.Ke3 (34.Kf1 Bh3–+) 34...Re8+ 35.Kd2 Qf4+ is a typical line).
22...Nf6 23.a6
White has found a way to pick up some pawns on the queenside. I could have delayed his progress but I saw that my kingside attack would be quick and I hoped the bait on the queenside would distract his queen from the defence.
23...b6 24.cxd5 Nxd5 25.Qxc6 Nf4 26.Rf2 Bf5 (D)

27.Qc7?
White is greedy. 27.e3! is the right way to defend. I thought that after 27...Nh3 28.Bxh3 Bxh3 I would have a very dangerous attack thanks to the opposite colored bishops but Rybka tells me that the best I have got is 29.Qc7 Rhf5 30.f4! (30.Qxa7 Rxf3 31.Rxf3 Rxf3 32.Qb7 Qg4 33.Qc8+ Kf7 34.Qc2 Ke7!! 35.a7 Rf2 36.Qc7+ Kf6 37.Qe5+ Kg6 38.Qxe6+ Qxe6 39.a8Q Re2 40.Ra6 Bf5 wins for Black) 30...R5f7 when I can try ...Kh8 and ...g5 but nothing is clear.
27...Rh6 28.Bf1
It’s too late for White to save the game. 28.e4 loses to 28...Nh5. The rest is more or less forced:
28...Nh5 29.Rg2 Bh3 (D)
It's a pity I never got around to playing ...Kh8!
30.Rf2 Bxf1 31.Rfxf1 Ng3+ 32.Kg2 Nxe2! 33.Be3 Qh3+ 34.Kh1 Ng3+ 35.Kg1 Qxh2 mate 0–1