La case très forte en c4

   [Event ""]  [Site "Lugano"]  [Date "1968"]  [Round ""]  [White "Edwards, Julio Francis"]  [Black "Liebert, Heinz"]  [Result "0-1"]  [ECO "A48"]  [BlackElo "2400"]  [SetUp "1"]  [FEN "2r1r3/pp3p1p/3k2p1/n2p4/1P1P2P1/P3P2P/5P2/2RR2K1 b - - 0 24"]  [PlyCount "27"]  [EventDate "1968.10.17"]  [EventType "team"]  [EventRounds "7"]  [EventCountry "SUI"]  [Source "ChessBase"]  [SourceDate "1999.07.01"]  [WhiteTeam "British Virgin Islands"]  [BlackTeam "German Dem Rep"]  [WhiteTeamCountry "IVB"]  [BlackTeamCountry "DDR"]   24... Nc4 25. a4 Nb2 26. Rf1 Nxa4 27. Ra1 b5 28. Rfc1 Rc4 29. Rxc4 dxc4 30. Kg2  Kd5 31. Kf3 c3 32. Ke2 Kc4 33. f3 Kxb4 34. e4 Kb3 35. d5 Kb2 36. Rd1 c2 37. Rd2  Kb1 0-1       

   [Event ""]  [Site "Lugano"]  [Date "1968.10.24"]  [Round ""]  [White "Edwards, Julio Francis"]  [Black "Liebert, Heinz"]  [Result "0-1"]  [ECO "A48"]  [BlackElo "2400"]  [PlyCount "74"]  [EventDate "1968.10.17"]  [EventType "team"]  [EventRounds "7"]  [EventCountry "SUI"]  [Source "ChessBase"]  [SourceDate "1999.07.01"]  [WhiteTeam "British Virgin Islands"]  [BlackTeam "German Dem Rep"]  [WhiteTeamCountry "IVB"]  [BlackTeamCountry "DDR"]   1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Nc3 O-O 6. Bd3 Nbd7 7. h3 Re8 8. O-O  e5 9. dxe5 dxe5 10. Nxe5 Nxe5 11. Be2 Qxd1 12. Raxd1 c6 13. b3 Bf5 14. Bd3 Bxd3  15. cxd3 Nd5 16. Nxd5 cxd5 17. d4 Nc6 18. Rc1 Rac8 19. Bd6 Bf8 20. Bxf8 Kxf8  21. Rfd1 Ke7 22. g4 Kd6 23. a3 Na5 24. b4 Nc4 25. a4 Nb2 26. Rf1 Nxa4 27. Ra1  b5 28. Rfc1 Rc4 29. Rxc4 dxc4 30. Kg2 Kd5 31. Kf3 c3 32. Ke2 Kc4 33. f3 Kxb4  34. e4 Kb3 35. d5 Kb2 36. Rd1 c2 37. Rd2 Kb1 0-1       

   [Event ""]  [Site "Parnu"]  [Date "1973"]  [Round ""]  [White "Yuksti"]  [Black "Tseitlin, Mark D"]  [Result "0-1"]  [ECO "E61"]  [SetUp "1"]  [FEN "2r1r1k1/3q2b1/p2n2p1/1p1p1p1p/PP1P1P2/3B2P1/7P/B2RRQK1 b - - 0 32"]  [PlyCount "21"]  [EventDate "1973.??.??"]  [Source "ChessBase"]  [SourceDate "2000.11.22"]   32... Nc4 33. axb5 axb5 34. Qf3 Kf7 35. h3 Nd2 36. Qf2 Ne4 37. Qg2 Ra8 38. g4  hxg4 39. Bxe4 Rxe4 40. Rxe4 dxe4 41. Qb2 Qd5 42. Qc3 Qc4 0-1       

   [Event ""]  [Site "Parnu"]  [Date "1973"]  [Round ""]  [White "Yuksti"]  [Black "Tseitlin, Mark D"]  [Result "0-1"]  [ECO "E61"]  [PlyCount "84"]  [EventDate "1973.??.??"]  [Source "ChessBase"]  [SourceDate "2000.11.22"]   1. c4 e5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. e3 Nf6 6. Nge2 O-O 7. O-O c6 8. d4  Nbd7 9. b3 Re8 10. Ba3 exd4 11. exd4 Nf8 12. Re1 h5 13. Qd2 Bf5 14. Nf4 Qd7 15.  Rad1 N8h7 16. b4 Bg4 17. f3 Bf5 18. Ne4 Rad8 19. Bb2 b6 20. Nxf6+ Nxf6 21. Nd3  b5 22. cxb5 cxb5 23. Nf2 Nd5 24. f4 Nb6 25. Bf1 d5 26. Nd3 Nc4 27. Qf2 Bxd3 28.  Bxd3 f5 29. Bc3 Nd6 30. Qf1 a6 31. a4 Rc8 32. Ba1 Nc4 33. axb5 axb5 34. Qf3 Kf7  35. h3 Nd2 36. Qf2 Ne4 37. Qg2 Ra8 38. g4 hxg4 39. Bxe4 Rxe4 40. Rxe4 dxe4 41.  Qb2 Qd5 42. Qc3 Qc4 0-1