411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Bc5/4. c3/4...Nf6/5. d4/5...exd4/6. cxd4/6...Bb4/7. Nc3
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Greco’s Gambit
This is the traditional way to block the bishop check. With 7. Nc3, white does sacrifice the e4 pawn, but aims to get a dangerous initiative