Saragossa Opening
The Saragossa Opening (or Hempel's Opening) is a chess opening defined by the opening move:
Since White usually plays more aggressively in the opening, the Saragossa is considered an irregular opening, classified as A00 by the Encyclopaedia of Chess Openings.
History
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. In 1922 a theme tournament requiring the players to open with 1.c3 was arranged in Mannheim with three participants, Siegbert Tarrasch, Paul Leonhardt and Jacques Mieses, which Tarrasch won.
Basics
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.
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, 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 Ponziani and Center Game openings, to name just a few.