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Saragossa Opening

The Saragossa Opening (or Hempel's Opening) is a chess opening defined by the opening move:

1. c3

Since White usually plays more aggressively in the opening, the Saragossa is considered an irregular opening, classified as A00 by theEncyclopaedia of Chess Openings.

This opening became popular in the Saragossa chess club (Zaragoza, Spain) in 1919. The next year club member José Juncosa analyzed the opening in Revista del Club Argentino.[1] In 1922 a theme tournament requiring the players to open with 1.c3 was arranged in Mannheim with three participants, Siegbert TarraschPaul Leonhardt and Jacques Mieses, which Tarrasch won.

The opening of 1.c3 seems at first to be an unambitious move. It opens a diagonal for the queen, but it makes only a timid claim to the center. It prepares to play d4, but White could simply have played that move immediately. Also, the pawn on c3 has the apparent disadvantage of taking the c3-square away from the knight. The difference between playing 1.c3 instead of 1.d4 is that the latter ensures black will not play 1...e5, while the more cautious 1.c3 still allows black to respond with 1...e5. This setup gives white the ability to maintain its extra tempo by forcing black to respond after each move.

It is not a terrible move, however, because it is likely to transpose to many solid systems, including a reversed Caro-Kann Defence or Slav Defense (but with an extra tempo for White); the Exchange Variation of the Queen's Gambit Declined, a fully respectable opening often played by grandmasters, after 1.c3 e5 2.d4 exd4 3.cxd4 d5; to a solid but passive type of Queen's Pawn Game after 1.c3 Nf6 2.d4 or 1.c3 d5 2.d4; or to a reversed Scandinavian Defense after 1.c3 e5 2.d4 exd4 3.Qxd4!? Nc6 4.Qa4; as well as the Ponzianni and Center Game openings, to name just a few. In the hands of a master-level player with a very deep theoretical knowledge of some of these systems, White can use this opening effectively in order to gain an unexpected advantage from the extra tempo.[citation needed] 1.c3 e5 2.Qc2 is the Hanham or Hayward

Black has a number of responses, the most common (and effective) being 1...d5, 1...e5, and 1...Nf6. After 1...d5, White can essay the Plano Gambit, 2.e4?!, in effect a weird response to the Scandinavian Defense. After 2...dxe4, 3.Qa4+ recovers the pawn, but Black gets quick development with 3...Nc6 4.Qxe4 Nf6 5.Qc2 e5. Also reasonable is 1...f5, when 2.d4 transposes to aDutch Defense where White has played the passive move c3.

The reply 1...c5 is also playable, but gives White more opportunity than other moves to transpose to standard openings where he may have a small advantage. The move 1...c5 2.e4 transposes to the Alapin Variation of the Sicilian Defence. The sequence 1...c5 2.d4 is also possible, when 2...cxd4 (2...e6 3.e4 d5, transposing to a French Defence after 4.e5 or 4.exd5, is also possible) 3.cxd4 d5 transposes to a regular Exchange Variation of the Slav Defense (usually reached by 1.d4 d5 2.c4 c6 3.cxd5 cxd5), which gives White a slight advantage.

The move 1...Nc6 is also possible, as it transposes to the 1.Nc3 system (with colors reversed), where Black embarked on a rather dubious plan with c6 and d5. After 2.d4 d5, Black seems to be holding the admittedly unusual position without particular difficulties.

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