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 language word has come to us directly from Catalan (as opposed to Provençal or Spanish), the following are likely to be such examples: By the time the crowns of Castille and Aragon were united in the late 15th century, the Italianisation of written Sicilian in the parliamentary and court records had commenced. By 1543 this process was virtually complete, with the Tuscan dialect of Italian becoming the "lingua franca" of the Italian peninsula and supplanting written Sicilian. Spanish rule had hastened this process in two important ways: Spanish rule lasted over three centuries (not counting the Aragonese and Bourbon periods on