Les Blancs exploitent la case c4

   [Event ""]  [Site "Baden-Baden"]  [Date "1925"]  [Round ""]  [White "Carls, Carl Johan Margot"]  [Black "Rosselli del Turco, Stefano"]  [Result "1-0"]  [ECO "A38"]  [PlyCount "103"]  [EventDate "1925"]  [Source "ChessBase"]  [SourceDate "1999.07.01"]   1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nf3 Nf6 7. Bd2 Bd7 8. O-O  O-O 9. Nd5 Re8 10. Bc3 e5 11. Nd2 Nxd5 12. cxd5 Nd4 13. Nc4 Bf8 14. a4 Qc8 15.  e3 Nf5 16. Qd2 Ng7 17. Rfc1 Bh3 18. Bh1 b6 19. b4 Qd7 20. Rcb1 Rab8 21. b5 f5  22. a5 bxa5 23. Rxa5 Rb7 24. Bf3 Reb8 25. Na3 Ne8 26. Bg2 Bxg2 27. Kxg2 Nc7 28.  Qa2 Qf7 29. e4 g5 30. Qc2 Be7 31. Bd2 Kh8 32. h3 Qg6 33. Bc3 Kg8 34. f3 f4 35.  g4 Qe8 36. Qa2 Kf8 37. Qc2 Ra8 38. Qa4 Qb8 39. Nc4 Qd8 40. b6 axb6 41. Nxb6 Kf7  42. Rb2 Rab8 43. Nc4 Rxb2+ 44. Bxb2 Rb4 45. Qc6 Qb8 46. Ra2 Rb3 47. Bxe5 Rxd3  48. Bxd6 Bxd6 49. Qxd6 Rc3 50. Ne5+ Kg8 51. Qe7 Ra3 52. Qxg5+ 1-0     

   [Event ""]  [Site "Baden-Baden"]  [Date "1925"]  [Round ""]  [White "Carls, Carl Johan Margot"]  [Black "Rosselli del Turco, Stefano"]  [Result "1-0"]  [ECO "A38"]  [SetUp "1"]  [FEN "r2qr1k1/pp1b1pbp/3p2p1/2pPp3/3n4/2BP2P1/PP1NPPBP/R2Q1RK1 w - - 0 13"]  [PlyCount "79"]  [EventDate "1925.??.??"]  [Source "ChessBase"]  [SourceDate "1999.07.01"]   13. Nc4 Bf8 14. a4 Qc8 15. e3 Nf5 16. Qd2 Ng7 17. Rfc1 Bh3 18. Bh1 b6 19. b4  Qd7 20. Rcb1 Rab8 21. b5 f5 22. a5 bxa5 23. Rxa5 Rb7 24. Bf3 Reb8 25. Na3 Ne8  26. Bg2 Bxg2 27. Kxg2 Nc7 28. Qa2 Qf7 29. e4 g5 30. Qc2 Be7 31. Bd2 Kh8 32. h3  Qg6 33. Bc3 Kg8 34. f3 f4 35. g4 Qe8 36. Qa2 Kf8 37. Qc2 Ra8 38. Qa4 Qb8 39.  Nc4 Qd8 40. b6 axb6 41. Nxb6 Kf7 42. Rb2 Rab8 43. Nc4 Rxb2+ 44. Bxb2 Rb4 45.  Qc6 Qb8 46. Ra2 Rb3 47. Bxe5 Rxd3 48. Bxd6 Bxd6 49. Qxd6 Rc3 50. Ne5+ Kg8 51.  Qe7 Ra3 52. Qxg5+ 1-0