Finally I win with KGA against a moderate player

1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Ng5 Nxe4 5. Nxe4 Qh4+ 6. Nf2 Bc5 7. d4 Bb4+ 8. c3 Ba5 9. Qe2+ Kd8 10. Qf3 Qe7+ 11. Be2 Re8 12. Bxf4 g5 13. Bd2 c5 14. dxc5 Nc6 15. b4 Bxb4 16. cxb4 Qe5 17. Nc3 Nxb4 18. Ng4 Qd4 19. Nb5 Nc2+ 20. Kd1 Qxa1+ 21. Kxc2 Qxa2+ 22. Kd3 Qa6 23. Bxg5+ f6 24. Bxf6+ Re7 25. Bxe7+ Kxe7 26. Qe4+ Kf7 27. Rf1+ Kg7 28. Qe7+ Kg6 29. Rf6+ Kh5 30. Qxh7+ Kg5 31. Qh6# {Black checkmated} 1-0

4.. Nxe4 was wrong move
19. Nb5 was blunder exposing rook for attack. It should have been Bg5+
22. ..Qa6 was another mistake from him. He could have given more checks.
23. ..f6 does nothing. his mistake
26. Crafty found a quicker way to win 26. Qe3+ Kd8 27. Qg5+ Ke8 28. Nf6+ Kf7 29. Bh5+ Ke7 30. Nxh7+ Ke6 31. Re1#
26. ..Kf7 was another blunder from him. Letting his king loose.