Interesting line in the Modern Defense (B06)

  I was watching a chess game that started with e4 and Black responded with the Modern Defense. Black challenges the center with a c-pawn push, but then delays the capture and develops the knight, prompting White to chase it across the board. By the time the knight retreats to c6, there have been only three chess games that reached the position on Lichess, but none of them continued with the move recommended by Stockfish: Bxf7+

  The only reasonable move for Black is to take the bishop with the king, and after dxc5 from White, the Black knight is trapped! Only squares not covered by the White queen are either occupied by Black pieces or leading into a direct fork at Qd5+.

  I found this interesting because the computer suggested continuations are quite unintuitive, while the things that feel natural to me (not an expert, mind you) lead to huge gains for White. Also, it's a move that has never been played AFAIK.

  So, a long overdue chess post and some PGN: 

1. e4 g6 2. d4 Bg7 3. c3 c5 4. Be3 Nf6 5. e5 Nd5 6. Bc4 Nb6 (6. .. Nxe3 7. fxe3 d6 (7. .. O-O) 8. exd6 exd6 9. Nf3 d5 10. Bb3 O-O 11. O-O) 7. Bxf7+ Kxf7 8. dxc5 {Knight on b6 is now trapped. The only escape squares are covered by the White queen or leading to a fork at d5.} d6 (8. .. Nc4 9. Qd5+ Ke8 (9. .. e6 10. Qxc4 Rf8 11. h4) 10. Qxc4) (8. .. d5 9. cxb6 Bxe5 10. Nf3 Bf6 11. bxa7 Nc6) 9. cxb6 dxe5 10. Qf3+ Bf6 11. bxa7 Nc6 {It's not a huge advantage, but Black can't castle, has double pawns and the fianchetto bishop is a glorified pawn. White develops either knight and is just fine without both center pawns.} *