The Ridiculous Ruy Lopez Opening: Marshall Attack, Modern, Main Line, Spassky Variation - Chess Forums

This is perhaps the longest variation of opening theory I've ever seen. It's called "Ruy Lopez Opening: Marshall Attack, Modern, Main Line, Spassky Variation" and only occurs after 19 moves.

Chess openings: Ruy Lopez (C60)

Ruy Lopez

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Ruy López Opening: Marshall Attack, Modern, Main Line, Spassky Variation - Chess Openings

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The Ridiculous Ruy Lopez Opening: Marshall Attack, Modern, Main Line, Spassky Variation - Chess Forums

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The Ridiculous Ruy Lopez Opening: Marshall Attack, Modern, Main Line, Spassky Variation - Chess Forums