EntityQ1442767· pop 18· linked from 30 articlesWare OpeningSign in to savechess opening 1. a4ConnectionsList of ECO codesEntityUnited StatesCountryInternational Standard Book NumberEntityMagnus CarlsenEntitychess openingEntityOxford University PressEntityTeimour RadjabovEntityEnglish openingEntityChess.comEntityalgebraic notationEntityWesley SoEntityLichessEntityScandinavian DefenseEntityLarsen's OpeningEntityEncyclopaedia of Chess OpeningsEntityBird's OpeningEntityFour Knights GameEntitySokolsky OpeningEntityKing's Pawn GameEntityBudapest GambitEntityCategoriesChess openings