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The Ruy Lopez | Open Variation | Chess Openings | IM Andrey OstrovskiyThe Ruy Lopez | Open Variation | Chess Openings | IM Andrey OstrovskiyChessfactorintermediateOpeningRuy lopezMorphy defenceOpen variationThe French Defense | Tarrasch Variation | Open Variation | Chess Openings | IM Andrey OstrovskiyThe French Defense | Tarrasch Variation | Open Variation | Chess Openings | IM Andrey OstrovskiyChessfactorintermediateOpeningFrench defenseTarrasch variationOpen variation