Réti Opening: Anglo-Slav Variation, Bled Variation

The Réti Opening: Anglo-Slav Variation, Bled Variation is a chess opening classified under ECO code A12 in the Flank Openings family, characterized by moves like 1.c4, 1.Nf3, or 1.f4, aiming to control the center indirectly. It is reached after 4 moves: 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. c4 c6. The resulting position leaves white to move.