Chess Opening Repertoire: The Semi-Slav - Nicolas YapChess Opening Repertoire: The Semi Slav by Nicolas Yap A great balance between solidity and dynamism When deciding upon a repertoire to meet 1 d4, those players whose natural inclination is to be aggressive have a difficult decision. There are plenty of outright counter attacking tries such as the Benko Gambit, the King's Indian Defence and the Modern Benoni. However, such openings are generally considered borderline unsound at the higher levels. On