Ruy Lopez, Exchange Variation Qf6 7.Qd3. There are two "ECO" classifications for the Exchange Variation. Bibliography Ruy Lopez, Exchange Variation The Exchange Variation of the Ruy Lopez is a chess opening that begins with the moves: Black may recapture on c6 with either pawn; although 4...bxc6 is playable, 4...dxc6 is almost always chosen at master level. Black has gained the at the cost of a weakened pawn structure, due to his doubled pawns on c6 and c7. White aims to reach an endgame in which he has the superior pawn structure, which may become an important factor. Thus, Black is compelled to strive for
Sicilian cuisine pane con panelle, while in the Catania region Cartocciate and Cipolline are very popular, and finally in the Messina region Focaccia messinese and Pitone messinese are common. Sicilian cuisine Sicilian cuisine is the style of cooking on the island of Sicily. It shows traces of all cultures that have existed on the island of Sicily over the last two millennia. Although its cuisine has a lot in common with Italian cuisine, Sicilian food also has Greek, Spanish, French and Arab influences. The Sicilian cook Mithaecus, born during 5th century BC, is credited with having brought knowledge of Sicilian gastronomy to