Ruy Lopez
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In the Ruy Lopez, after Black Nc3 and White Bb4, if Black a3, what is White's response in order to keep that B eying a diagonal from the lower left quadrant?
First of all, U should learn algebraic notations on the chessboard 
:
https://en.wikipedia.org/wiki/Algebraic_notation_(chess)
DeirdreSkye wrote:
I agree with Yigor(I must be terribly sick) but more or less I understand your question.
Get well soon. 
I'm as good as gold! 