The Ruy Lopez opening (also known as Spanish Game), is by far the most frequently played and the one that has accumulated the greatest body of theory.  The Ruy Lopez opening falls into a group of Chess openings called “Open Games” and derives its strength from the logic of white's second and third move.

Try yourself the Ruy Lopez opening below. You have white pieces and need to move your Bishop to b5 to complete the book opening move sequence.