Chess Opening Theory/1. e4/1...Nf6/2. Bc4/2...Nxe4/3. Bxf7/3...Kxf7/4. Qh5/4...g6

=Alekhine Defence:Krejcik Variation= Black moves a pawn to block the Queen, affecting their pawn structure. Now the Knight can be regained with Qd5+.

Theory table
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'1.e4 Nf6 2.Bc4 Nxe4 3.Bxf7+ Kxf7 4.Qh5+ g6'