Timm,John (2200) - IM Glazer,Helmut (2470) [B74]
2nd NAPZ, 1994

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2

This was my first international tournament. I was sure a 2470 IM was very strong,
and knew lots of theory which was not readily available. So White avoids
the "modern" Yugoslav attack and plays an "old-fashioned" system. Remember
that this was 1994, and that most players (myself included) did not have home
PCs, chess-playing programs, or computer databases.

7...Nc6 8.0-0 0-0 9.Nb3 b6?!

According to theory, Black can equalize by trading off pieces on c4 or
g4 after 9 ... Be6; 10 f4, Na5 or Qc8. But in a tournament with 7 2400+ players, and
a handful of unrated (nominally 2200) players such as myself, it could make sense
for a 2470 Black to avoid exchanges and try for more than equality.

10.f4 Bb7 11.Bf3 Rc8 12.Qd2 Qc7?!

Very passive. Black needs counterplay, and should try 12 ... Qd7 with the idea of
Ng4, or 12 ... Nd7!? with the idea of 13 ... B:c3 and if 14 Q:c3, then Nce5.

13.Rad1 Rfe8 14.Rfe1 Nd8

Black's avoidance of theory and exchanges isn't working out. The natural-looking
14 ... a6 just creates a weakness on b6, and White increases his advantage by Qf2 or
Na4 or Nd5 forcing ...N:d5.

15.Nd4 a6

Now b6 is shielded by Nd4, but White has another idea.

16.Bf2 b5 17.e5!

This must be the right idea. White, unlike Black, has all his pieces developed,
and ...Nd8 interferes with the cooperation between Black's Rooks and has left e5 temporarily undefended. In other words, the tactics "should" work, but still need to be calculated.

17...Bxf3 18.exf6 b4!

[Not 18...Bxd1? 19.Nd5 Qc4 20.Nxe7+ Rxe7 21.fxe7 Ne6 22.Nxe6 fxe6 23.b3 Qc7
24.Rxe6 Re8 25.Qd5! Kh8 (25...Bxc2? 26.Rxg6+! Kh8 27.Rxg7! mates quickly) 26.Qxd1+-]

19.Rxe7 Rxe7 20.fxe7 Qxe7 21.Nxf3 bxc3 22.bxc3 Nb7 23.Qd3 Rxc3

Probably best. After 23 ... a5, White has a combination of advantages: extra
doubled pawn, two weak Black pawns, stable center squares for White's pieces.
But now the White a-pawn is dangerous.

24.Qxa6 Rxc2 25.Qa8+ Nd8 26.a4 Ra2 27.Re1 Qf8 28.Rc1 Qe8 29.Bb6 Bf6 30.Re1 Qd7

[Not 30...Qc6?? 31.Bxd8!+-]

31.a5 Kg7 32.Qd5 Qa4 33.Ng5 Qc2 34.Kh1 Ne6 35.Rxe6! Ra1+

[35...Qb1+? 36.Bg1 fxe6 (36...Ra1 37.Re1!+-) 37.Nxe6+ Kh6 38.g4[]+-
threatening 39 Qg5+!! with mate.]

36.Bg1 Rxg1+

[36...fxe6 37.Qb7+ mates.]

37.Kxg1 Qc1+ 38.Kf2 Qxf4+ 39.Ke2 Qg4+ 40.Kf2 Bd4+
41.Ke1 Bc3+ 42.Kf1 fxe6 43.Nxe6+ Kf6

Black has material equality but White is winning due to the dual threats: against the
King and to trade Queens and win with the passed a-pawn.

44.Nd8! Qf4+ 45.Ke2 Qg4+ 46.Ke3 Qd7 47.Qf3+!+- Kg7

[47...Ke7 48.Nc6+ Ke8 49.Qd5+-]

48.Qb7 Qxb7 49.Nxb7 Be5 50.h3 Kf6 51.a6 Bh2 52.Kf3 Bg1 53.Nxd6

1-0