why the resignation?

why did black resign?

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6
8. Be3 O-O 9. f4 Qb6 10. Qd3 Ng4 11. Nxc6 Nxe3 12. Nxe7+ Kh8 13. Na4 Qd4
14. Qxd4 Bxd4 15. c3 Nxf1+ 16. cxd4 Ne3 17. Rc1 Bd7 18. Nc3 Rf-e8 19. Kf2
Rxe7 20. Kxe3 Rc8 21. Rd1 Bc6 22. d5 Bd7 23. Kd4 a6 24. a4 Rc-e8 25. Bd3
f5 26. a5 Kg7 27. Rc1 Kf6 28. Re1 g5 29. Rf1 g4 30. Re1 h5 31. b4 h4 32.
g3 Kg6 33. gxh4 fxe4 34. Nxe4 Bf5 35. h5+ Kh6 36. Nxd6 Rxe1 37. Nxf5+ Kxh5
38. Ng7+ Kh4 39. Nxe8 Rxe8 40. d6 g3 41. hxg3+ Kxg3 42. Kd5 Kxf4 43. d7
Rh8 44. Kd6 1-0

Other matches like this can be posted here.

because they didnt want to play anymore

because after bishop sac Bxh6 it's a touchdown.

although he was a pawn in advantage had no counter-attack...white managed to control the game