Hi! Thanks for seeing my game. To answer your question is that I discover the opening repertoire I almost used in all the opening in either black or white and it is the Philidor defense. One solution is to study the main line of these opening and hope to remember what to do if they appear on the board - qoute; British Chess News ( Disreputable Opening Repertoire ).
I hope I answer your question.
[Event "White Dragon Max III - Round 1"]
[Site "Chess.com"]
[Date "2022.09.29"]
[Round "?"]
[White "dusha83"]
[Black "johnpaul999"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1315"]
[BlackElo "1166"]
[TimeControl "1/259200"]
[EndDate "2022.10.11"]
[Termination "johnpaul999 won by checkmate"]
1. e4 c5 2. Bc4 a6 3. Nf3 h6 4. O-O d6 5. d4 cxd4 6. Qxd4 Nd7 7. Re1 e5 8. Qd3
Qc7 9. b4 Ngf6 10. Qb3 Nb6 11. Nbd2 Bg4 12. Be2 Be6 13. Qa3 Rd8 14. Qb2 g6 15.
a4 Bg7 16. a5 Nc4 17. Bxc4 Bxc4 18. Qc3 Rc8 19. Bb2 O-O 20. Nxc4 Qxc4 21. Qxc4
Rxc4 22. c3 Ne8 23. Nd2 Rc8 24. c4 f5 25. f3 f4 26. Ba3 g5 27. Rec1 h5 28. c5
dxc5 29. bxc5 Rc6 30. h3 Rf7 31. Rab1 Kh7 32. Bb2 Rg6 33. Nc4 Re7 34. Rd1 g4 35.
hxg4 hxg4 36. fxg4 Rxg4 37. Rf1 Bf6 38. Rf3 Ng7 39. Rh3+ Kg8 40. Ba3 Rc7 41. Nb6
Rf7 42. Nd5 Bd8 43. Kh2 Ne6 44. Rf3 Ng5 45. Rf2 Nxe4 46. Re2 f3 47. Rc2 f2 48.
Ne3 Rh7# 0-1
https://www.chess.com/game/daily/434340913
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