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How to Attack Pinned Pieces | Attack & Defense | Improver Level | IM Andrey Ostrovskiy | 2DHow to Attack Pinned Pieces | Attack & Defense | Improver Level | IM Andrey Ostrovskiy | 2DChessfactorbeginnerExploiting pinned Pieces to get a Material Advantage | Attack & Defense | IM Andrey OstrovskiyExploiting pinned Pieces to get a Material Advantage | Attack & Defense | IM Andrey OstrovskiyChessfactorintermediate