411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Bb4/3. Nxe5
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not chess opening theory== 3. Nxe5 — Radium Gambit Accepted ==
3. Nxe5 accepts the Radium Gambit, with White's knight capturing the pawn on e5.
3...Qe7! attacks the knight and prepares to recover the pawn (Main Line)
3...d6! immediately attacks the knight on e5, forcing it to move (Triton Variation).
3...Nf6 develops a piece while putting additional pressure on the center.
3...Nc6?! The Rayford Gambit offers a knight trade, but Black gives White the option to exchange knights and potentially maintain the extra pawn.
Downsides: White wins a pawn, but the knight on e5 can become a target. Black gets rapid development and can use 3...Qe7!, 3...d6!, or 3...Nc6?! to chase the knight and try to recover the pawn.
The Radium Gambit Accepted is characterized by Black's unusual pawn sacrifice.