EntityQ678245· pop 33· linked from 564 articlesPirc DefenceSign in to savechess opening 1. e4 d6ConnectionsWorld Chess ChampionshipEntityList of ECO codesEntityModern DefenseEntityBenoni DefenseEntityDragon VariationEntityonline chessEntityRussianEntityWorld War IIConceptchessEntityBarcelonaEntityInternational Standard Book NumberEntityCuraçaoConceptGarry KasparovEntityBobby FischerEntitypawnEntityrookEntitykingEntityqueenEntityAnatoly KarpovEntityknightEntityCategoriesChess openings