Originally posted by konhenBlack will probably play Qxe5, yes. Basically the e-file is then also open (with queen and king on the same file). White will continue development and then try to use his advanced development, black will have to defend carefully. His king will not be safe for a while.
What good does e5 do? Cant black just play Qxe5 without repercussions?
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1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3
6. Qxf3 Qf6 7. e5
According to Korchnoi, the most logical, "with this extra sacrifice of a pawn white opens up new lines for the attack".
7. d3 is playable but after 7. ... Bc5+ 8. Kh1 d6 black has opened a few lines for his pieces and if, say, 9. BXf4 Nc6 10. Nc3 Ne5 white has attacking chances after 11. Qg3 but it is far from clear and he is still N for a pawn down.
There are no other realistic options, so 7. e5!! it must be.