[Event "Principle of 2 weaknesses"] [Site "https://lichess.org/R6wP9rC0"] [Date "2021.02.02"] [White "Sidd12"] [Black "Vishruthkrishnan"] [Result "0-1"] [UTCDate "2021.02.02"] [UTCTime "12:55:55"] [WhiteElo "1323"] [BlackElo "1337"] [Variant "From Position"] [TimeControl "420+0"] [ECO "?"] [Opening "?"] [Termination "Normal"] [FEN "6r1/1pp5/p2bk3/4pp2/8/2P2PP1/PP3B2/3R1K2 b - - 0 1"] [SetUp "1"] [Annotator "lichess.org"] 1... f4 2. gxf4 exf4 3. Re1+ Kf5 4. b4 Rh8 5. Bd4 Rh3 6. Kg2 Rg3+ 7. Kf2 Kg5 8. Bc5 Bxc5+ 9. bxc5 Kh4 10. Re5 Rg5 11. Re4 Rxc5 12. Rxf4+ Kg5 13. Rf7 Rxc3 14. Rg7+ Kf6 15. Rxc7 Rxc7 16. Ke3 b5 17. Kd4 a5 18. Kd5 a4 19. Kd6 Rc2 20. a3 Rc3 21. Kd5 Rxa3 22. Kd6 Rxf3 23. Kd7 a3 24. Kd6 a2 25. Kc6 a1=Q 26. Kxb5 Qd4 27. Kc6 Qc5+ 28. Kb7 Re3 29. Ka6 Qb6+ 30. Kxb6 Ke6 31. Kc5 Ke5 32. Kc4 Ke4 33. Kb5 Rc3 34. Kb4 Rc8 35. Kb5 Kd5 36. Kb6 Kd6 37. Kb5 Rc6 38. Kb4 Rc5 39. Kb3 Kd5 40. Kb4 Kd4 41. Kb3 Rc4 42. Kb2 Kd3 43. Kb3 Kd4 44. Kb2 Rc3 45. Kb1 Kd3 46. Kb2 Kd2 47. Kb1 Rc2 48. Ka1 Rc4 49. Kb1 Kd3 50. Kb2 Rc3 51. Kb1 Kc4 52. Kb2 Kb4 53. Kb1 Kb3 54. Ka1 Rc1# { Black wins by checkmate. } 0-1