Who can teach me more about Morphy defense ? Thank you

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kindaspongey

Perhaps it would be helpful to look at Starting Out: Ruy Lopez by IM John Shaw (2003).

https://web.archive.org/web/20140627024240/http://www.chesscafe.com/text/hansen53.pdf

Sqod

I posted a book excerpt of a limited discussion of this defense at:

https://www.chess.com/forum/view/chess-openings/is-the-ruy-lopez-a-lie?lc=1#last_comment