Ruy Lopez, Exchange Variation 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 an active position, generally avoiding piece exchanges. The variation was introduced into
Ruy López de Dávalos no issue. 1.5 Giovanni de Guevara, Juan de Guevara, Secreto of Malta island and Gozo island. In 1460, married Paola Inguanez, Paula Iñiguez????, de los barones malteses de Djar il-Biniet, dei Baroni di Djar il-Bniet., with issue. Guara, Daguara, etc. are Italian approaches in the manuscripts to try to spell the Basque-Spanish name Guevara. Ruy López de Dávalos Ruy López de Dávalos, a.k.a. Rui López Dávalos, (Úbeda, Jaén Province, Spain, 1357 - in exile, Valencia, Spain, 1428), Count of Ribadeo since it was sold by the first count, the Frenchman Pierre de Villaines, who received it from Henry II of