Fisherman defense

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The basic position of the Fischer defense after 3.… d7 – d6

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The Fischer defense is an opening variant in chess . It is named after the world chess champion Bobby Fischer , who published an analysis in the American Chess Quarterly in 1961 .

The fisherman's defense results from the King's Gambit after the moves:

1. e2 – e4 e7 – e5
2. f2-f4 e5xf4
3. Ng1-f3 d7-d6

After a defeat by Boris Spasski in Mar del Plata in 1960, Bobby Fischer published a famous article A bust to the king's gambit in the American Chess Quarterly in 1961 , in which he recommended the “high-class waiting move” 3.… d7 – d6 and as a “refutation” of the King Jumper Gambits .

variants

The point of this move is to reach the Hanstein variant (3. Nf3 g5 4. Bc4 Bg7 5. 0–0 d6 6. d4 h6) via 4. Bf1 – c4 h7 – h6 without giving the opponent the opportunity to to play the Kieseritzky Gambit .

4. d2 – d4 g7 – g5 5. h2 – h4 (5. Bf1 – c4 and 5. Nb1 – c3 invite you to the Rosentreter gambit) g5 – g4 leads to independent tangles . Fischer analyzed 6. Nf3 – g5 f7 – f6 (In contrast to the Allgaier Gambit , the pawn g4 is covered by the bishop c8.) 7. Ng5 – h3 g4xh3 8. Qd1 – h5 + Ke8 – d7 9. Bc1xf4 Qd8 – e8! 10. Qh5-f3 Kd7-d8. Therefore the retreat 6. Nf3 – g1 is forced here.

4. b2 – b3 wants to take advantage of the delay of g7 – g5 and claim the long, black-squared diagonal itself. 4. Bf1 – c4 h7 – h6 5. b2 – b3 also has the same intention.

3.… d6 creates the possibility after 4. Bc4 Be6 5. Bxe6 fxe6 6. d4 Qf6

A variation of the sea ​​cadet mat can arise in the Fischer defense (Partie Haller - Siegel, Vienna 1956):

4. Bf1 – c4 g7 – g5? (The preparatory h7 – h6 is usual) 5. Nb1 – c3 (5. h2 – h4! Loosens the black pawn structure g5 – g4 6. Nf3 – g5 Ng8 – h6 7. d2 – d4 f7 – f6 8. Bc1xf4! F6xg5 9 Bf4xg5 Qd8 – d7 10. 0–0) Bc8 – g4 6. Nf3 – e5! Bg4xd1 ?? 7. Bc4xf7 + Ke8 – e7 8. Nc3 – d5 #

Black would have to play d6xe5 on move six, to which White answers with 7. Qd1xg4.

literature

Individual evidence

  1. Jerzy Konikowski: Crash course of the chess openings . 3rd edition, Joachim Beyer Verlag, 2005, p. 29.
  2. Jerzy Konikowski: Crash course of the chess openings . 3rd edition, Joachim Beyer Verlag, 2005, p. 29.