411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...c5/3. Nxe5/3...f6/4. Qh5/4...Ke7
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4...Ke7
Black thinks he avoided the loss of his rook, but white now has /5. Nf7/.
1.e4 e5 2.Nf3 c5? 3.Nxe5! f6? 4.Qh5+! Ke7