Irregular chess opening

The Irregular openings are rarely played openings in chess. Originally, the term specifically not covered and theoretically not remanufactured openings were designated. With increasing development of opening theory, the term experienced a corresponding narrowing. Today in particular openings without 1.d4 (closed games) and 1.e4 ( Open and Semi-open games), but even without 1.c4 ( English Opening ) 1.f4 ( Bird Opening ) and 1.Nf3 count ( Réti - opening ) to the irregular openings.

These are classified in the ECO codes under the key A00 ( with the exception of the Larsen system: A01 ).

Some opening names listed here are mostly to be found in the English language, the German has not (yet ) enforced no single name. Common German names are characterized at the appropriate point by references to separate articles.

Anderssen 's opening

This opening begins with 1.a2 -a3. See Anderssen - opening

Goods - Opening

1 a2 -a4

The product - opening White starts with the first train a2 -a4. It is named after the goods U.S. chess player Preston (1821-1891), who often played irregular openings.

The double step edge of the farmers is certainly one of the weakest white opening moves: The pawn on a4 does not have any influence on the Centre does not open storm tracks for the white bishop and weakens the white queenside. It is therefore foreseen early for Black that White is hardly aspire to the long castling. In addition, this Randbauernzug ​​leaves the Black free choice at their own game center and figure construction. Good Entgegungen are the natural trains 1 ... d7 -d5 or 1 ... e7 - e5.

Goods - opening plays no role in modern chess tournament.

Larsen - opening

This opening begins with 1.B2 -b3. See Larsen system

Orangutan Opening

This opening begins with 1.B2 - b4. See Sokolski opening

Zaragoza - opening

This opening starts with 1.c2 - c3. See Saragossa opening

Lousy opening

This opening starts with 1.d2 -d3. See Lousy opening

Van't Kruys opening

1 e2 -e3

The Van't Kruys opening is initiated by 1.e2 -e3. It is named after the Amsterdam players Maarten van't Kruys (1813-1885) named, who won the sixth Dutch Championship in 1878.

1 e2 -e3 is not a popular train, according to data from ChessBase he is the elftpopulärste the twenty possible first moves of white. He freed the King Bishop and claimed the center of a moderate way for themselves, but the train is passive, also by letting the blacks free hand in reply. The development of women's runner is hampered by the pawn on e3, and white will usually reach more than a reserved occupation of the center.

Although the train is not very aggressive, the game in the English opening, the Queen's Pawn Game or in a reversed way of the French Defence ( with delayed d2 -d4 ), or the Dutch Defence pass (f2 - f4 together with possible Stonewall structure with d2 -d4 and c2 - c3).

The Van't Kruys - opening is not an ordinary election for the Grand Master, but their ability to move in many different openings, explains the appeal of opening for some players, such as the Czech grandmaster Pavel Blatný.

The Amsterdam - attack is a variant of the Van't Kruys - opening, at the 1st to 1.e2 -e3 e7 - e5 trains ... 2 c2 - c4 (This is already achieved in the Sicilian suits. ) D7 - follow d6 3 Nb1 - c3 - c6 Sb8 4 b2 -b3 Ng8 - f6.

Barnes - opening

1 f2 -f3

The Barnes - opening or patience - opening is initiated by 1.f2 -f3.

Of the twenty possible first moves 1.f2 -f3 is considered the worst. Although the train attacks e4 the central field, but if the control of e4 is White's play goal that it should not be exclusively so is still too prefer 1.d2 -d3 or 1.Sb1 - c3, although these traits considered very passive be. 1.f2 -f3 does nothing for the development, in reality the train hindered rather that white development, as the king Springer natural centrally acting field is taken f3. In addition, 1.f3 weakens the king position unnecessarily.

Since 1.f3 a weak train is, it is not often played. However, he may not be the rarest opening move. Some players play this train with a certain arrogance in order to show the enemy that you can play anything against him. After 1.f2 -f3 e7 - e5 some players even play the nonsensical train 2.Ke1 - f2? , This opening is sometimes called the Wanderkönig opening. It was even played already at the British Chess Championships 1999 an insignificant for the tournament starting game.

However, the refutation of 1.f2 -f3 is not as easy as you think. Although Black can simply realize an advantage by occupying the center and quick character development aims, however, it is not self-explanatory to use a profit.

The Barnes - opening can fool Matt, 1.f2 -f3 e7 - e5 2.g2 - g4? Qd8 - h4 # lead. Besides 2.h2 - h3? Qd8 - h4 3.g2 - g3 Dh4xg3 # but this is the only train that allows an early checkmate, and is made possible only by serious errors of Whites.

The opening is according to Thomas Wilson Barnes (1825-1874), named an English chess player who won eight times against Paul Morphy, including a game in which he responded to 1.e2 -e4 with 1 .. f6 f7 -.

As a patience - opening it was named after the Frenchman David patience.

Königsfianchetto

1 g2 - g3

The Königsfianchetto g2 - g3 initiated first by train to fianchettieren with the aim of the King Bishop by g2. Usually the opening turns into positions of the English game or the King 's Indian Attack. White can also build up in accordance with the Pirc Defense Ufimtsev, with an extra tempo.

Grob's attack

This opening starts with 1.g2 - g4. See Grob's attack

Clemenz opening

1 h2 - h3

The Clemenz opening is by train 1.h2 - h3? initiated. It is named after the Estonian player Hermann Clement ( 1846-1908 ).

As the Anderssen - opening, 1.a2 -a3, is 1.h2 - h3 a time-consuming train. He claims no central fields for themselves and also helps any figure in the development. The train also is a slight weakening of the pawn structure on the kingside, although the attenuation is not as severe as in 1.g2 - g4 ( Grob's attack) or 1.f2 -f3 ( Barnes - opening ). For these reasons, it is probably one of the least played twenty possible first moves for White.

Black has many playable answers that are most common 1 .. d7 -d5 and 1 .. e7 - e5, which the center is occupied. Black can, however, expect no great advantage, since white with Clemenz opening practically giving only the first-move advantage.

Desprez - opening

1 h2 - h4

The Desprez or Kada - opening is characterized by the first train 1 h2 - h4. The opening is named after the French chess player Marcel Desprez or after the Hungarian chess player Gabor Kada.

How 1 a2 -a4, the goods - opening, is 1 h2 - h4 an unimportant pawn that does nothing to fight for the central fields and nothing for development. The only character who was freed, the King's Tower, who is mainly needed for the short castling or practically never developed according to h3. Therefore, white is almost forced to castle long and are black and thus the ability to snap from the first train to his game to an attack on the position of the long castling. In addition 1.h2 - h4 produces a weakening on the kingside. For these reasons, 1 h2 - h4 one of the rarely played first twenty possible opening moves of white.

In general, Black answers with the occupation of the center with 1 ... e7 - e5 or 1 ... d7 -d5, also 1 ... Ng8 - f6 is possible as a healthy development course. Rarely, however, the King Bishop by 1 ... g7- g6 is fianchettiert here, since it is now justified by the farmer now possible lever h4 - h5, with opening the h-file, the white opening move.

Durkin opening

1 Nb1 -a3

The Durkin Opening, in English also known as the sodium attack is initiated with the train 1.Sb1 -a3.

This strange development of the women's jumper does too little to use the white suit advantage. From a3 from the Springer does not affect the center and no activity. It is likely that the White Springer soon moves back to him perhaps to post after 2.c4 on c2 or exchange on c4. If this is the white plan, so it is more likely to attract 1.c4, and thus to play the English opening. From this perspective you can see the only meaning of the train is to depart from the opening theory.

The opening is named after the American chess player Robert Durkin.

The name " sodium - attack" is an ironic name of this opening, which is based in the English notation of the train 1.Sa3. In English, this train is listed 1.Na3, (N for Knight) and Na is the chemical symbol for the element sodium.

Amar - opening

1 Sg1 - h3

The Amar - opening or Paris - opening starts with the first Randspringerzug Sg1 - h3? . The Parisian amateur Charles Amar played this opening in the 1930s. It was probably so named from Savielly Tartakower, who used both names for this opening.

As with the Durkin Opening White developed at this opening his king knight on a field edge, and such a development is usually little to recommend. ( As Siegbert Tarrasch used to say: "A knight on the edge brings sorrow and shame. "). After preparing the development of the Kingdom Springer before the short castling.

The most played black answer is 1 .. d7 -d5, it intends to pawn structure on the kingside to destroy with 2 .. Lc8xh3. Therefore, White plays on 1 .. d7 -d5 2.g2 - g3 mostly to prevent this, but after what Black 2 .. e7 - e5 can occupy the center.

There is a variant of this opening gambit, which is called the Paris Gambit. However, it is very doubtful, since after his move order 1.Sg1 - h3? d7 -d5 2.g2 - g3 - e5 3.f2 - f4 e7? Black not only the center, but after 3 .. Lc8xh3 4.Lg2xh3 e5xf4 5.0-0 f4xg3 6.h2xg3 also has a healthy extra pawn ( so played first in a game Tartakower -Lilienthal, Paris 1933).

Sleipner opening

1 Nb1 - c3

The Sleipner Opening - named after Sleipnir, the eight-legged horse of Odin - begins with the knight move after c3, ie 1 Nb1 - c3.

The knight move according to c3 is a useful development course in the direction of the center. Although the train is playable, he is not very popular. For one thing, the first player lays down with the Springer development before the pawn structure is clarified in the center. Secondly, the second player has a free choice of opening moves such as 1 ... e7 - e5, 1 ... d7 -d5 or 1 ... c7 - c5, so that he may make the character of the opening material.

However, some players have intensively with the train and extensively tested it, such as the Danish Correspondence Chess Grandmaster Ove Ekebjærg or the Netherlands Correspondence Chess Grandmaster Daniel Dirk van Geet ( born March 1, 1932).

After 1.Sb1 - c3 diverse transitions are possible in other known openings. After 1 ... e7 - e5 2 e2 -e4 you reach the Vienna Game. After 1 ... d7 -d5 2 e2 -e4 may arise various Semi-Open Games as the Caro- Kann Defence, the Alekhine Defence or the French defense. The answer ... c7 - c5 1 reached after 2 e2- e4, the Sicilian Defence.

Other hand, a mostly independent character have the following options:

Other names of the opening

In the Anglo - American world, the opening carries mostly the name Dunst Opening ( according to the New York chess champion Ted A. Dunst); but there are also names like Heinrichsen Opening, Baltic Opening, van Geet 's Opening, Opening Sleipnir, Kotrč 's Opening, Opening Mestrovic or Queen's Knight Opening.