Chess Opening Theory/1. e4/1...d5/2. Nf3/2...dxe4/3. Ng5/3...Bf5

Tennison gambit accepted Scandinavian defence → Tennison gambit → Tennison gambit accepted Zukertort opening → Tennison gambit → Tennison gambit accepted 3...Bf5 Black defends the e4 pawn with their bishop. This is considered the most accurate move against 3. Ng5, though not the most common. White usually plays 4. Nc3, adding pressure onto the e4 pawn. Black then usually defends with 4...Nf6, where White can either develop their bishop with 5. Bc4 or attack the pawn again with 5. Qe2!?. If 5. Qe2!? is played, Black should give the pawn back with 5...Nc6. But a common trap Black players fall for is the Brigg's trap, where they hold on to the pawn and instead blunder 6. Qb5+!. Black will then be forced to either give up material or get checkmated: 6...Nbd7 7. Qxf5 is the best line. Black gives up their bishop. 6...Bd7?! 7. Qxb7! leads to Black having to sacrifice the rook to avoid checkmate: 7...Bc6? 8. Bb5! pinning the bishop to the king: 8...Qb6?? 9. Qc8# is a checkmate. 8...Qd7 is better, but after 9. Bxc6 Black must give up the rook after 9...Nxc6 10. Qxa8+, as 9...Qxc6?? 10. Qc8# is a swift checkmate. 7...Qb6 is better, sacrificing the rook with 8. Qxa8+. References