Zukertort Opening: Tennison Gambit, Brigg's Trap

The Zukertort Opening: Tennison Gambit, Brigg's Trap is a chess opening classified under ECO code A06 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 5 moves: 1. e4 d5 2. Nf3 dxe4 3. Ng5 Nf6 4. Nc3 Bf5 5. Qe2 Qd4. The resulting position leaves white to move.