[Event "Riga"]
[Site "Riga"]
[Date "1965.??.??"]
[Round "?"]
[White "Trenko, Zigfrid"]
[Black "Jascenko, Olga"]
[Result "0-1"]
[ECO "C61"]
[PlyCount "116"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. 0-0 c6 6. Ba4 Nf6 7. c3 d5 8. e5 Ng4 9. d3 Bc5 10. Nd2 dxc3 11. Nf3 Nxf2 12. Rxf2 Bxf2+ 13. Kxf2 Qb6+ 14. Be3 Qxb2+ 15. Kg3 0-0 16. Bb3 Re8 17. Rb1 Qa3 18. Qc2 Qb4 19. Bd4 Qe7 20. Qxc3 Bd7 21. Be3 f6 22. Bd4 fxe5 23. Bxe5 Qf7 24. Bc2 b6 25. h3 c5 26. d4 Bf5 27. Bxf5 Qxf5 28. Rb5 Rac8 29. Kh2 Re6 30. Bg3 Re2 31. dxc5 Rxc5 32. Rxc5 bxc5 33. Nh4 Qc2 34. Qa5 Re8 35. Qxa7 c4 36. Nf3 Qe4 37. Be5 Rxe5 38. Nxe5 Qxe5+ 39. Kh1 Qe1+ 40. Kh2 Qe5+ 41. Kh1 h6 42. Qc5 c3 43. a4 Qe1+ 44. Kh2 Qd2 45. Qc8+ Kf7 46. Qf5+ Ke7 47. Qe5+ Kd7 48. Qxg7+ Kc6 49. Qf6+ Kc5 50. Qe7+ Kc4 51. Qc7+ Kb3 52. Qb6+ Ka2 53. Qb4 Qd3 54. a5 c2 55. Qa4+ Kb2 56. Qb4+ Qb3 57. Qd4+ Kb1 58. a6 Qb8+ 0-1

[Event "Riga"]
[Site "Riga"]
[Date "1965.??.??"]
[Round "?"]
[White "Trenko, Zigfrid"]
[Black "Jascenko, Olga"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "59"]
[EventDate "1965.??.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. e3 cxd4 6. exd4 Bb4 7. Nf3 Qa5 8. Bd2 0-0 9. a3 Bxc3 10. Bxc3 Qc7 11. b3 dxc4 12. bxc4 b6 13. Bd3 Bb7 14. 0-0 Nbd7 15. Ne5 Nxe5 16. dxe5 Nd7 17. Re1 Nc5 18. Bc2 Rfd8 19. Qg4 Rac8 20. Re3 Nd7 21. Rh3 Nf8 22. Bxh7+ Nxh7 23. Qh4 Qxc4 24. Qxh7+ Kf8 25. Bb4+ Ke8 26. Qg8+ Kd7 27. Qxf7+ Kc6 28. Rc3 Ba6 29. Qxe6+ Kb7 30. Rxc4 1-0

[Event "URS U20 Team-ch08 Final"]
[Site "Moscow"]
[Date "1949.06.??"]
[Round "4"]
[White "Rasimavichius"]
[Black "Trenko, Zigfrid"]
[Result "0-1"]
[ECO "B73"]
[PlyCount "114"]
[EventDate "1949.06.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "URS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nf6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. Qd2 d5 10. Nxc6 bxc6 11. exd5 cxd5 12. Bf3 e6 13. Rad1 Ba6 14. Be2 Bxe2 15. Qxe2 Qa5 16. Bd4 Rab8 17. b3 Nd7 18. Bxg7 Kxg7 19. Qd2 Rfc8 20. Na4 Qc7 21. c4 Nf6 22. Rc1 Qe7 23. c5 Qb7 24. Qd4 Qb4 25. Qe5 Rc6 26. Rcd1 Qb7 27. Rd4 Qc7 28. Qxc7 Rxc7 29. Re1 a5 30. Rd2 Rc6 31. Rc2 Nd7 32. Kf1 Rb5 33. Rec1 f5 34. f4 Kf6 35. g3 g5 36. Kg2 h6 37. h3 Kg6 38. Re2 Kf6 39. Rec2 Kg6 40. Re2 Kf6 41. Rec2 Rb4 42. Kf3 h5 43. Nb2 h4 44. fxg5+ Kxg5 45. Nd3 Rd4 46. Nf2 hxg3 47. Kxg3 f4+ 48. Kg2 e5 49. a3 e4 50. Rb2 Rxc5 51. Rxc5 Nxc5 52. b4 axb4 53. axb4 Na4 54. Rb3 Rd2 55. Kf1 e3 56. Ng4 d4 57. b5 Nc3 0-1

[Event "URS U20 Team-ch08 Final"]
[Site "Moscow"]
[Date "1949.06.??"]
[Round "1"]
[White "Savitsky, Leonid"]
[Black "Trenko, Zigfrid"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "47"]
[EventDate "1949.06.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "URS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Be3 Nbd7 7. Qd2 e5 8. 0-0-0 exd4 9. Nxd4 Nc5 10. f3 Ne6 11. Nxe6 Bxe6 12. Bh6 Nh5 13. g4 Ng3 14. Rh2 Nxf1 15. Rxf1 Qf6 16. Bxg7 Kxg7 17. f4 Bc4 18. Rfh1 Rh8 19. g5 Qe6 20. Qd4+ Kg8 21. f5 gxf5 22. exf5 c5 23. Qxh8+ Kxh8 24. fxe6 1-0

[Event "URS U18 Team-ch Semifinal"]
[Site "Riga"]
[Date "1949.06.??"]
[Round "5"]
[White "Tal, Mihail"]
[Black "Trenko, Zigfrid"]
[Result "1/2-1/2"]
[ECO "C91"]
[PlyCount "96"]
[EventDate "1949.06.??"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "URS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. d4 d6 9. c3 Bg4 10. d5 Na5 11. Bc2 Nd7 12. h3 Bxf3 13. Qxf3 Nc4 14. b3 Ncb6 15. Nd2 Bg5 16. Nf1 Bxc1 17. Raxc1 Qf6 18. Qxf6 Nxf6 19. f3 Nh5 20. Ne3 g6 21. c4 Nd7 22. Bb1 b4 23. h4 Nc5 24. Kf2 a5 25. Bc2 a4 26. Ra1 Ra5 27. bxa4 Nxa4 28. a3 Rb8 29. axb4 Rxb4 30. Reb1 Rxb1 31. Bxb1 Ra6 32. Bc2 Nc5 33. Rxa6 Nxa6 34. g3 Kf8 35. Ba4 Ke7 36. Bc6 Nb4 37. Bb5 Kd8 38. Ng4 f5 39. exf5 gxf5 40. Nh6 f4 41. g4 Ng3 42. Nf7+ Ke7 43. Ng5 h6 44. Ne6 Nd3+ 45. Kg2 Ne1+ 46. Kf2 Nd3+ 47. Kg2 Ne1+ 48. Kf2 Nd3+ 1/2-1/2

[Event "URS U20 Team-ch08 Final"]
[Site "Moscow"]
[Date "1949.06.??"]
[Round "2"]
[White "Trenko, Zigfrid"]
[Black "Laes, Charles Heino"]
[Result "0-1"]
[ECO "B74"]
[PlyCount "46"]
[EventDate "1949.06.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "URS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6 8. 0-0 0-0 9. Nb3 Be6 10. f4 Qc8 11. Qe1 a5 12. a4 Nb4 13. Qd2 Bc4 14. Rf2 Bxb3 15. cxb3 Qe6 16. Bf3 Qxb3 17. Rd1 Nc6 18. g4 Nd7 19. e5 Nb6 20. exd6 Nc4 21. Qd5 Nb4 22. Qxb7 Nxe3 23. dxe7 Nxd1 0-1

[Event "URS U20 Team-ch08 Final"]
[Site "Moscow"]
[Date "1949.06.??"]
[Round "5"]
[White "Trenko, Zigfrid"]
[Black "Mikhailov"]
[Result "1-0"]
[ECO "B74"]
[PlyCount "67"]
[EventDate "1949.06.??"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "URS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. 0-0 d6 9. Nb3 Be6 10. f4 Qc8 11. Qe1 Ng4 12. Bxg4 Bxg4 13. f5 gxf5 14. h3 Bh5 15. exf5 f6 16. Qh4 Be8 17. Nd5 Bd7 18. Nd4 Rf7 19. Qe4 Ne5 20. Ne6 Bxe6 21. fxe6 Qxe6 22. Rf4 Qd7 23. Rh4 Ng6 24. Rh5 f5 25. Qf3 e6 26. Nc3 a6 27. Rd1 Rc8 28. Bf4 Nxf4 29. Qxf4 Be5 30. Rg5+ Kf8 31. Qh4 Rg7 32. Qh6 Kg8 33. Rxg7+ Qxg7 34. Qxe6+ 1-0

[Event "Riga Junior-ch Semifinal"]
[Site "Riga"]
[Date "1949.03.??"]
[Round "9"]
[White "Trenko, Zigfrid"]
[Black "Tal, Mihail"]
[Result "1/2-1/2"]
[ECO "C18"]
[PlyCount "110"]
[EventDate "1949.03.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 cxd4 6. axb4 dxc3 7. Nf3 cxb2 8. Bxb2 Ne7 9. Bd3 Ng6 10. 0-0 Bd7 11. b5 Nf4 12. Ba3 Nxd3 13. Qxd3 f5 14. Nd4 Kf7 15. f4 Re8 16. Kh1 Kg8 17. Qh3 Kh8 18. Qh5 Rg8 19. Nf3 Qe8 20. Qh4 Qg6 21. Nd4 Qg4 22. Qe7 Re8 23. Qd6 Qg6 24. Bc5 a6 25. Rf3 Qf7 26. Rb3 Bc8 27. b6 Nc6 28. Nxc6 bxc6 29. Qxc6 Bb7 30. Qc7 Kg8 31. Bd6 Rec8 32. Qxf7+ Kxf7 33. Bc7 g6 34. Kg1 h5 35. h4 Kg8 36. Kf2 Kf7 37. Ke3 Kf8 38. g3 Kf7 39. Kd4 Ke8 40. c4 dxc4 41. Kxc4 Bd5+ 42. Kb4 Bxb3 43. Kxb3 Rxc7 44. bxc7 Kd7 45. Rc1 Rc8 46. Kb4 Rxc7 47. Rd1+ Ke7 48. Rd6 Rb7+ 49. Kc5 a5 50. Ra6 Rc7+ 51. Kb6 Rc3 52. Rxa5 Rxg3 53. Ra7+ Kf8 54. Kc6 Rd3 55. Kc5 Rd5+ 1/2-1/2

