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Achilles Frydman vs Stefan Zawadzki
"Achilles Heel" (game of the day Nov-21-2004)
Polish Championship (1935), Warsaw POL, rd 13, Jun-??
Four Knights Game: Spanish. Classical Variation (C48)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Nov-21-04  aw1988: <chessgames> DeFirmian vs Bronstein, 1993
Nov-21-04  JohnBoy: I'd love to see some comments here regarding
(1) why not 16.Nf4?
and
(2) what exactly befalls black after 20...dc4.

The only thing I see in common w/ deFirmian-Bronstein is the losers Q-side pawn formation. What are you thinking <aw1988>?

Nov-21-04  de schaar: what's the continuation after 20...dxc4?
Nov-21-04  Catfriend: IMO 20..d:♗c4? 21.♘e6+! f:♘e6 22.f:e6 is the answer. Though white's down on material even after ♘d7's death, his rooks invade the last row, and together with the white pawn and queen, it's a deadly pressure. Anybody, comments?
Nov-21-04  tldr3: 25...Kc7 26.Qf4+ Bd6 Re7+ nice game by white
Nov-21-04  crafty: 20...dxc4 21. ♕g4+ ♔f8 22. ♘g6+ fxg6 23. fxg6 ♖g8 24. ♖xd7   (eval 3.38; depth 13 ply; 250M nodes)
Nov-21-04  crafty: 16. ♘f4 ♘e5 17. ♘h5+ ♔f8 18. ♗e2 c6 19. ♖fe1   (eval 2.11; depth 13 ply; 250M nodes)
Nov-21-04  patzer2: This game is a good example of using tactical threats to gain positional advantage.

The subtle 20. Rfe1 uses the threat of a decisive "double attack" to defend against Black's "threatened" 20...dxc4? in the line given by <crafty>. This double attack would occur after 20...dxc4? 21. Qg4+ Kh7? (see Crafty's analysis above for 21...Kf8 22. Ng6+ ), when White wins with 22. Rxd7! Qxd7 23. Nh5! Rhg8 24. Nxf6+ Kh8 25. Qf4 (threatening mate or capture of the Black Queen) .

White uses a "Knight Fork"to create a winning "double" attack after 22. Ne6+! If 22...Kg8?, then 23. Qg4+ Kh7 24. Qg7#. If 22...Ke8, then 23. Nxc4+ (discovered check) wins a piece with decisive advantage. If 23...Ne5 or 23...Nb8, then 24. Qxf6+ is decisive.

Nov-21-04  kevin86: Nice attack by white-it looks like a Greek vaulted over the Pole!

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