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Vlastimil Hort vs Peter Biyiasas
Manila Interzonal (1976), Manila PHI, rd 15, Jul-03
King's Indian Defense: Fianchetto Variation. Classical Main Line (E69)  ·  1-0

ANALYSIS [x]

FEN COPIED

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sac: 24.Rxa7 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jan-22-12  backrank: 17. Nb5! and especially 23. Qc6! (only making sense with the following queen sac already in mind - BTW, the move forces the reply Rc8 by threatening Bxb6!) and 24. Rxa7!! reveal Hort's deep positional understanding. The combination is so strong because the pawn on b6 is invariably lost (thus soon leading to two connected passed pawns for White), and the black minor pieces are so poorly placed on g7 and h5 that they can't help anything. 28. ... Nxc7 is utter desperation, but otherwise White simply plays b5-b6-b7-b8. With 32. Bd2, White threatens Be3-a7. In the sequel, the black lady isn't able to defend b8 and a7 at the same time, hence Black's last try d5 and Bd6. But after 35. ... Qb4, White simply plays 36. Rxd6 Qxd6 37. Ba7, and the game is over.
Mar-23-23
Premium Chessgames Member
  GrahamClayton: A classic example of why a Queen is a poor blockader of a passed pawn - Biyiasas is effectively playing without his most powerful piece.

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