Retroalimentacion ejercicio 4 [Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "blancas"] [Black "negras"] [Result "*"] [SetUp "1"] [FEN "2k5/1R6/K7/8/8/8/2p5/8 w - - 0 1"] [PlyCount "4"] [EventDate "2014.12.05"] [SourceDate "2014.12.05"] 1. Rb5 c1=Q 2. Rc5+ Qxc5 * your web browser and/or your host do not support iframes as required to display the chessboard; alternatively your wordpress theme might suppress the html iframe tag from articles or excerpts
