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Ulf Andersson vs Andras Adorjan
Szirak Interzonal (1987), Szirak HUN, rd 11, Jul-31
Zukertort Opening: Sicilian Invitation (A04)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
Feb-13-06
Premium Chessgames Member
  Mateo: Everybody is talking about Topalov's sacs of exchange, most of the time wonderful, but this is nothing new. Just think about Petrossian or Andersson. This game shows a brilliant sac of the exchange.

On move 20, Adorjan had to face the double threat 21. Qc3, attacking the Bishop and threatening mate on g7. That is why he played 20... e5. But this loses. He should have played something like 20... Rac8.

After 20... e5? 21. Qc3, White wins, because he can open anyway the a1-h8 diagonal (or as in the game, Black must go for a lost ending).

1) 21... Be4 22. Ne5!! Ne5 23. Qe5 f6 24. Rf6, White wins.

2) 21... Bb5 22. Ne5 Rac8 23. Qd4 Ne5 24. Qe5 f6 25. Rf6, White wins.

3) 21... Rac8 22. Ne5 f6 23. Nc6 Ne5 24. Qd2! Rc6 25. Be5, White wins.

Jan-17-16  Retireborn: One of my favourite Andersson games.

14...Qb8 is close to being a losing move and Houdini suggests the typical Hedgehog pawn sacrifice 14...b5 instead.

Andersson should have played 18.Nxd4 with a big advantage.

After 19...Qb7 20.Rd6! Black can no longer defend the dark squares, as <Mateo> sets out. Adorjan missed his chance to fight back with 19...Nc5! Then Houdini gives an interesting line 20.Qc3 (20.Qh6 f6) e5 21.Rd2 f6 22.b4 Nxe4 23.Qxc6 Nxd2 24.Qd5+ Kg7 25.Ng5! (the knight cannot be taken now or later because White rides in on the dark squares) Kh8 26.Qxd2 Ra7 which I'm going to call "unclear".

Possible earlier improvement for Black is Suba's suggestion 11...Ra7 planning ...Qa8.

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