411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. d4/2...exd4/3. c3/3...dxc3/4. Bc4/4...cxb2/5. Bxb2/5...Nf6/6. e5/6...d5/7. exf6/7...Bb4/8. Bc3
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Danish Gambit Accepted rd nd bd qd kd rd pd pd pd pd pd pd pl pd bd bl bl pl pl pl pl rl nl ql kl nl rl
Danish Gambit Accepted, Classical Defence
8. Bc3
Black is temporarily a piece down, and the bishop on b4 is threatened, so 8...Bxc3+ is necessary.