Ruy Lopez Berlin Defense Rio Gambit Accepted variation main line quiz

In chess, is it a good idea to play games where you intentionally sacrifice your queen in the opening to become better at swindling your opponents? - Quora

2022 Archives - British Chess News

The Project Gutenberg eBook of Chess Strategy, by Edward Lasker

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From Berlin to Rio: 1. e4 e5 for Black

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Ruy Lopez (How To Play It, Attack It, And Beat It)

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