(1) Foerster,A (2215) - Petrosian,S (2424) [A59]
Bargteheider Cup 6th Hamburg (3), 30.05.2003

1.d4 The threat is 2.e4

1...Nf6 d5 also stops the threat but gives the game a very different character in which, after 2.c4 e6, leaves Black with a "bad" Bc8

2.c4 c5 The Benoni.

3.d5 Consistent and aggressive [3.Nf3 cxd4 4.Nxd4 and Black has many options, including ...e6 and a hedgehog!]

3...b5 Attacking the c4/d5 pawn chain at the base, with counterplay at the expense of a pawn

4.cxb5 a6 5.bxa6 g6 Black is no rush to recapture, and speeds the development of the Bf8-g7

6.Nc3 Bxa6 To countere2-e4 with Bxf1

7.e4 Bxf1 8.Kxf1 Part of Black's compensation is that white will have to spend much time untangling on the kingside

8...d6 9.g3 fianchettoing the king! h3 and Kg1-h2 is another option

9...Bg7 10.Kg2 Nbd7 11.h3 To prevent the idea of Ng4-e5

11...0-0 12.Nf3 Ra7 The usual plan is Qa5 or Qb6. In this line, Black will play Qa8 and Rb8

13.Re1 Qa8 14.Re2 Rb8 Black has an obvious initiative on the queenside. Is it worth the pawn?

15.Bf4 Diagram wit the idea of e5, but Qc2 is more prudent

15...Nb6 heading towards a4 or c4

16.Rc1 Na4 17.Rec2 White is already in trouble [17.Nxa4 Rxa4 18.Rxc5 Rxe4=/+ (18...dxc5 19.Bxb8 ) ]

17...Rxb2 [17...Nxc3 18.bxc3 Nxe4-/+ ]

18.Nxa4 [18.Rxb2 Nxb2 19.Qe2 Na4-/+ ]

18...Rxc2 19.Rxc2 Rxa4 With threats on a2 and e4

20.e5 Nxd5 21.exd6 Nxf4+ 22.gxf4 Rd4 23.Rd2 exd6 The Nf3 is pinned!

24.Rxd4 Bxd4 25.Kg3 Qxa2-+ 26.Nxd4 Qd5 0-1