Depends on how diamond plays. I can give yu a better answer if you can describe the play style. With the information at my disposal i would say using solid fundimentals. Ask your self. Am i stable?Are they stable? Am i set up for an attack? Will this attack end with me in top control or a safety position? Work your way though these questions if its a no. Make it a yes. This will help keep you alive long enough for them to mess up enough for you to capitalise on.