Chess Opening Theory/1. e4/1...e5/2. d4/2...exd4/3. c3/3...dxc3/4. Bc4/4...cxb2/5. Bxb2/5...Nf6/6. Nf3

Danish Gambit Accepted rd nd bd qd kd bd rd pd pd pd pd pd pd pd nd bl pl nl pl bl pl pl pl rl nl ql kl rl Danish Gambit Accepted, Classical Defence 6. Nf3 6…Nxe4? would be a great move to teach chess students about the value of development over pawn-grabbing. The simple 7. O-O sets in motion an overwhelming attack. Part of the reason White wants to play 7. O-O is that it deprives Black of the bishop check on b4, which is otherwise a free developing move. So it makes sense that Black's most popular move is the immediate 6...Bb4+ followed by castling, and that a less popular but higher-scoring alternative is 6...d5 to distract White from castling by threatening a piece. After 6...d5 7.exd5 Black has the nice d6 square for the bishop, Open Ruy Lopez style. Black can opt for passive defence with 6...Be7 or 6...d6, or for a transposition to the Göring Gambit with 6...Nc6.