Fegatello variant

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The Fegatello variant after 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7

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The Fegatello variant (in English : Fried Liver Attack ) is an opening in the game of chess in which White sacrifices a knight in order to expose the black king and gain strong initiative. It results in the two-knight game afterwards in the variant of the Prussian game according to the sequence of moves ( see also: chess notation ):

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7

In the opening system of the ECO codes , the Fegatello variant is classified under the key C57. The first surviving game with this attack dates back to 1610 ( Giulio Cesare Polerio - Domenico , Rome).

Idea and Variants

The idea of ​​the white knight sacrifice , which Black cannot refuse at this point because of the fork and therefore answers with 6.… Kxf7 , is the subsequent double attack 7. Qf3 + (gives check and attacks the knight on d5 again). This is to steer the black king to e6 - the only move with which Black can claim the multi-piece. Here the king is not only relatively unprotected, but also blocks the development of black pieces, which gives White good chances of attack. In the further course everything revolves around the knight on d5.

  • 7.… Ke6 8. Nc3 Nc4 Black defends his knight and at the same time threatens Nc2 + with a rook win.
    • 9. Qe4 c6 10. a3 Sa6 11. d4 ( 11. 0–0 ) White protects c2 and drives away the defending knight in order to continue attacking or first to bring his own king to safety.
    • 9. a3 ?! Nxc2 + 10. Kd1 Nxa1 11. Nxd5 Another sacrifice to reinforce the attack. White gives black no time to play c6 and forces the black knight to give up cover on d5 at the expense of a rook. As a result, White can beat on d5 and aims, with its active figures the open black king matt to set. However, this variant is very risky, since white remains behind with a loss of material if the attack does not penetrate through. Black can do this through very careful defense. Since (for human opponents) this defense is not easy to implement in the various variants, this subsequent sacrifice offers opportunities in practice - even at a high level.

alternative

In order to avoid the king's move to the center and the resulting complications, Black can return the piece immediately and parry chess with 7.… Qf6 . This simplifies the defense, but Black stays behind

  • 8. Bxd5 + Ke8 9. Bxc6 + Qxc6 10. Qxc6 + ( 10. Qh5 + Qg6 11. Qxe5 ) bxc6 11. d3

with at least one minus pawn and the considerably worse structure. 7.… Ke8 leads to the same result; very bad is 7 ... Kg8 ?? 8. Bxd5 + and mate in two moves.

Deviations

Instead of 6.Ng5xf7 ?! becomes 6. d2 – d4! considered objectively stronger. With this development move White first covers his knight on g5. 6. d2 – d4 !, which was played by Paul Morphy as early as 1858 , increases the development advantage and risks nothing. Black faces big problems.

6.… e5xd4 would open the e-file for the better developed White, which he seeks to exploit with 0–0 soon.

The threat Ng5xf7 remains and is prepared by development.

A game between Joseph Henry Blackburne and Richard Teichmann continued with 6. d2 – d4! e5xd4 7. 0–0 Bc8 – e6 (f6 8. Re1 + Be7 9. Qf3 ) 8. Rf1 – e1 Qd8 – d7 9. Ng5xf7! Ke8xf7 10. Qd1 – f3 + Kf7 – g8 11. Re1xe6! Re8 – d8 12. Re6 – e4 Nc6 – a5? 13. Re4 – e8!

Black gave up at this point. 13.… Rxe8 14. Qxd5 + and Black goes mate 13.… Qxe8 14. Bxd5 + Rxd5 15. Qxd5 + Qf7 16. Qxa5 with a piece win.

Black can prevent White's knight sacrifice in a two-knight game (and probably should) by instead of 5.… Nxd5? attacks the white bishop who is still blocked by his own pawn with 5.… Na5 . After an interim check, the latter has to withdraw and Black can develop, e.g. B .:

  • 6. Bb5 + c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bc5 … with a balanced position.

A variant that is as aggressive as it is risky for Black is to completely ignore the threat to the f7 square from the knight and bishop after 4. Ng5 and instead attack White's king position in the form of the f2 square with 4.… Bc5 . This is the Traxler counterattack . It leads to sharp play, but usually also to a clear advantage for White.

See also

Web links

Individual evidence

  1. ↑ The “regular game” Polerio - Domenico on chessgames.com . Retrieved April 5, 2016.
  2. ↑ See Shirov - Sulskis , Tromsø 2014 . Retrieved April 5, 2016.