chessdryad.comchessdryad.com/articles/chessdigest/v3_03.pdf · Line 17 in the treatment of Ruy...
12
chessdryad.comchessdryad.com/articles/chessdigest/v3_03.pdf · Line 17 in the treatment of Ruy Lopez in the 7th edition of MCC) shows a continuation in the Bird's defence to Ruy Lopez