EntityQ3817711· pop 13· linked from 536 articlesoutpostSign in to savein chess, a square on the 4th–7th ranks protected by a pawn and not attackable by an opponent’s pawnConnectionsglossary of chessEntityonline chessEntitychessEntityInternational Standard Book NumberEntityViswanathan AnandEntitypawnEntityrookEntitykingEntityqueenEntityknightEntitybishopEntityFIDEEntitycastlingEntityGrandmasterEntitychess openingEntityChess OlympiadEntitycheckmateEntityDeep BlueEntitychess pieceEntitySicilian DefenceEntityCategoriesChess strategyChess terminology