Two Knights Defense

When Two Knights in Nachzuge is an opening of the chess game, which is divided into several variants. The Two Knights in Nachzuge one of the most open-ended games and is classified in the opening system of the ECO codes C55- C59 under the keys.

The Two Knights in Nachzuge begins with the trains 1 e2- e4 e7 - e5 2 Sg1 -f3 Sb8 - c6 - c4 3 Lf1 Ng8 - f6

History

The name Two Knights in Nachzuge means that the second player at the start of the game after the development of the king's pawn first developed his two Springer and thus starts a counter attack to the point e4.

The earliest analysis of this opening comes from the Italian master Giulio Cesare Polerio from 1560. During the first half of the 19th century were made re- investigation by the Berlin School, led by Paul Rudolph of Bilguer. The Two Knights in Nachzuge was therefore formerly known in the chess literature as Prussian defense.

Variants

  • 4 Nb1 - c3

The coverage of the farmer with 4 Nb1 - c3 allows the sham sacrifice 4 ... Sf6xe4, attempt to secure in the center with the black space advantage, after 5 Sc3xe4 wins the black with the farmer fork d7 -d5 back the figure.

After the white head continued 4 Nf3 - g5 ( with attack on the weakest point in black stock: f7 ) fails this sacrifice ( 4 ... Sf6xe4 ) to 5 Lc4xf7 Ke8 - e7 6 d2 -d4 with white advantage. Less good is the Springer fork 5 Sg5xf7 since Black organized by Qd8 - h4 with attack on f2 counterplay, eg: 6 0-0 Bf8 - c5.

  • 4 Nf3 - g5

The most common retort to black 4 Nf3 - g5 is immediately d7 -d5, and then the game goes into the Prussian game after 5 e4xd5. 4 ... c5 Bf8 yields the double-edged Traxler counterattack.

  • 4 d2 -d4

After d2 -d4 e5xd4 5 0-0 Bf8 - c5 or 5 ... Sf6xe4 6 Tf1 - e1 d7 -d5 7 8 Nb1 - c3 Lc4xd5 Dd8xd5 Qd5 - a5 9 Sc3xe4 goes the game in the Max - Long - attack.

  • 4 d2 -d3

The modern variant leads to Bf8 - c5 in the Italian game.

Opening Traps and short games

1 short game

The following case, also called Canal trap, comes from a lot of 1923 in the Canal against Johner in Trieste took. 4.d2 -d4 e5xd4 5.0-0 Sf6xe4 6.Tf1 - e1 d7 -d5 7.Sb1 - c3

This case people get away quite easily by 7 ... dxc3!

7 ... d5xc4 8.Te1xe4 Bc8 - e6?

Here would Be7! been necessary.

9.Sf3xd4 Sc6xd4 10.Te4xd4 Qd8 - c8 11.Lc1 - g5 Bf8 - d6 -e4 0-0 12.Sc3 13.Se4 - f6 From here on, it's only a short way to go matt black.

2 short game

Here is a match between Andrews and Jansen 4.d2 -d4 e5xd4 5.0-0 Bf8 - e7 6.Sf3xd4 Sc6xd4 7.Dd1xd4 d7 - d6 8.f2 - f4 b7 - b6?

Black is a trap, one in which he is groping himself.

9.e4 e5 - d6 -d5 10.Lc4 - b5 Bc8 - d7 11.e5xf6! Be7 - c5 12.Tf1 - e1 Ke8 -f8 13.f6xg7 Kf8 - g8 14.g7xh8D #

First-move advantage in chess Sacrifice (chess) Two Knights Defense, Max Lange Attack
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