Two knights in the aftermath
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The two-knight game after 3.… Ng8 – f6
The two-knight game afterwards is an opening of the chess game , which is divided into several variants. The two-knight game afterwards is one of the open games and is classified in the opening system of the ECO codes under the keys C55-C59.
The two-knight game afterwards begins with moves 1. e2 – e4 e7 – e5 2. Ng1 – f3 Nb8 – c6 3. Bf1 – c4 Ng8 – f6
history
The name two knights defense means that the second player at the start of the game by developing the king's pawn first developed his two Springer and counterattacked to the point e4 starts.
The earliest analysis of this opening comes from the Italian master Giulio Cesare Polerio in 1560. In the first half of the 19th century , the Berlin school carried out new investigations , especially Paul Rudolph von Bilguer . The two-knight game in the aftermath was therefore also called the Prussian Defense in the chess literature .
variants
- 4. Sb1-c3
Covering the pawn with 4. Nb1 – c3 enables the dummy offering 4.… Nf6xe4, with which Black wants to gain space advantage in the center . After 5. Nc3xe4, Black wins the piece back with the pawn fork d7 – d5.
After White's main continuation 4. Nf3 – g5 (with an attack on the weakest point in Black's camp: f7) this sacrifice (4.… Nf6xe4) fails on 5. Bc4xf7 + Ke8 – e7 6. d2 – d4 with White advantage. The knight fork 5. Ng5xf7 is less good, since Black organizes counterplay through Qd8 – h4 with an attack on f2; E.g .: 6. 0-0 Bf8-c5.
- 4. Nf3-g5
Black's most common answer to 4. Nf3 – g5 is immediately d7 – d5, after which the game passes into the Prussian game after 5. e4xd5 . 4.… Bf8 – c5 results in the double-edged Traxler counterattack .
- 4. d2-d4
After 4. d2 – d4 e5xd4 5. 0–0 Bf8 – c5 6. e4 – e5 the game goes into the Max Lange attack . Black can avoid this line with the Anti-Lange variant : 5. ... Nf6xe4 6. Rf1 – e1 d7 – d5 7. Bc4xd5 Qd8xd5 8. Nb1 – c3 Qd5 – a5 9. Nc3xe4 with a roughly even game.
- 4. d2-d3
the modern variant leads to the Italian game after Bf8 – c5 .
Opening traps and short games
1. Short game
The following trap, also known as the Canal trap, comes from a game in 1923 in which Canal faced Johner in Trieste .
- 4. d2 – d4 e5xd4
- 5. 0-0 Nf6xe4
- 6. Rf1-e1 d7-d5
- 7. Sb1-c3
This trap can be avoided quite easily with 7.… dxc3!
- 7.… d5xc4
- 8. Re1xe4 + Bc8 – e6?
Here would be Be7! been necessary.
- 9. Nf3xd4 Nc6xd4
- 10. Re4xd4 Qd8-c8
- 11. Bc1-g5 Bf8-d6
- 12. Nc3-e4 0-0
- 13. Ne4-f6 +
White won.
2. Short game
Here is a game between Andrews and Jansens:
- 4. d2 – d4 e5xd4
- 5. 0-0 Bf8-e7
- 6. Nf3xd4 Nc6xd4
- 7. Qd1xd4 d7-d6
- 8. f2 – f4 b7 – b6?
Black sets up a trap that he himself will fall into.
- 9. e4 – e5 d6 – d5
- 10. Lc4-b5 + Lc8-d7
- 11. e5xf6 !! Be7-c5
- 12. Rf1-e1 + Ke8-f8
- 13. f6xg7 + Kf8-g8
- 14.g7xh8D #
(if 13.… Ke8 follows 14. gxh8D + Kd7 15. Qxd5 + Bd6 16. Qhe5 c6 17. Qdxd6 + Kc8 18. Qxd8 + Kb7 19. Dec7 + Ka6 20. Qxb6 + axb6 21. Qxa8 #)
literature
- Alexander Beliavsky , Adrian Mikhalchishin : The Two Knights Defense . Batsford, London 1999, ISBN 0-7134-8441-1 .
- Jan Pinski: The Two Knights Defense . Everyman Chess, London 2004, ISBN 1-85744-283-0 .
- Alexander Delchev : Bc4 against the Open Games. Chess Stars Publishing, Sofia 2018, ISBN 978-619-7188-17-2 .
- Alexei Suetin : Textbook of chess theory, Sportverlag Berlin , 1974.
Individual evidence
- ↑ Alexei Suetin: Textbook of the chess theory, Sportverlag Berlin, 1974, p. 103.