[Event "GER-chT Nord-West U20 1112"]
[Site "Germany"]
[Date "2012.05.12"]
[Round "8.5"]
[White "Killgus, Leonard"]
[Black "Ukena, Riko"]
[Result "1/2-1/2"]
[ECO "B76"]
[PlyCount "120"]
[EventDate "2011.09.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. 0-0-0 Nxd4 10. Bxd4 Be6 11. Kb1 Qc7 12. g4 Rfc8 13. Rc1 Qa5 14. b3 Qb4 15. Rd1 Bxg4 16. fxg4 e5 17. Nd5 Nxd5 18. exd5 Qxd4 19. Qxd4 exd4 20. Bd3 Re8 21. Rde1 Re5 22. Kc1 Rae8 23. Kd1 Re3 24. Re2 Rxe2 25. Bxe2 Re3 26. Ke1 Re5 27. Kf2 Rxd5 28. Bf3 Rc5 29. Bd1 Rc3 30. Re1 Be5 31. Kg2 d3 32. cxd3 Rxd3 33. Kg1 Rd2 34. a3 Rxh2 35. Rxe5 dxe5 36. Kxh2 f5 37. Kg3 Kf7 38. gxf5 gxf5 39. Bc2 Ke6 40. Kf3 h6 41. Bb1 e4+ 42. Kf4 Kd5 43. Kxf5 e3 44. Bd3 Kd4 45. Be2 Kc3 46. Kf4 Kxb3 47. Kxe3 Kxa3 48. Kd2 a5 49. Kc2 Kb4 50. Kb2 b5 51. Bd1 a4 52. Ka2 Kc4 53. Be2+ Kb4 54. Kb2 Ka5 55. Ka2 b4 56. Kb2 Kb6 57. Bd1 a3+ 58. Kb3 Kc5 59. Bh5 Kd4 60. Bf7 Kc5 1/2-1/2

[Event "GER-chT Nord-West U20 1112"]
[Site "Germany"]
[Date "2012.01.22"]
[Round "5"]
[White "Ukena, Riko"]
[Black "Aslan, Dersim"]
[Result "1/2-1/2"]
[ECO "A26"]
[PlyCount "85"]
[EventDate "2011.09.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 Nc6 5. d3 Nf6 6. e4 e5 7. Nge2 Bg4 8. h3 Bd7 9. 0-0 0-0 10. f4 exf4 11. Nxf4 Ne8 12. Be3 Nd4 13. Qd2 c6 14. Nfe2 Nxe2+ 15. Nxe2 Rb8 16. Bxa7 Ra8 17. Be3 Rb8 18. Kh2 f5 19. Bh6 Qb6 20. Bxg7 Nxg7 21. b3 Rbe8 22. Nf4 Qd4 23. Rad1 Re7 24. b4 Qa7 25. Qc2 g5 26. Ne2 Ref7 27. Qd2 h6 28. Rb1 Kh7 29. d4 Be6 30. d5 cxd5 31. exd5 Bd7 32. Nd4 f4 33. gxf4 Rxf4 34. Rxf4 Rxf4 35. Nb5 Qb6 36. Re1 Rf2 37. Qc3 Rf7 38. Qg3 Nh5 39. Qxd6 Qf2 40. Rg1 Bxh3 41. Qe5 Bxg2 42. Rxg2 Qh4+ 43. Kg1 1/2-1/2

[Event "GER-chT Nord-West U20 1112"]
[Site "Germany"]
[Date "2012.01.22"]
[Round "5"]
[White "Ukena, Riko"]
[Black "Petrov, Iouri"]
[Result "0-1"]
[ECO "A11"]
[PlyCount "118"]
[EventDate "2011.09.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. Nc3 e6 6. 0-0 Bb4 7. Qb3 Qe7 8. d3 h6 9. a3 Bxc3 10. Qxc3 0-0 11. b4 Nbd7 12. c5 e5 13. e3 e4 14. Nd4 Bh7 15. Bh3 Ne5 16. Nf5 Bxf5 17. Bxf5 Nxd3 18. Bd2 Qe5 19. Qxe5 Nxe5 20. Bc3 Nfd7 21. Bxd7 Nxd7 22. Rfd1 a5 23. bxa5 Rfd8 24. Bb4 Ne5 25. Rdc1 Nc4 26. Rab1 Rd7 27. a4 Nxa5 28. Bxa5 Rxa5 29. Rb4 Kf8 30. f3 exf3 31. Kf2 Re7 32. Kxf3 g5 33. g4 Kg7 34. Rd4 Kg6 35. h3 f5 36. gxf5+ Kxf5 37. Rb4 h5 38. Rd4 Re4 39. Rb1 Rxd4 40. exd4 Rxa4 41. Rxb7 Rxd4 42. Rc7 Rd3+ 43. Kg2 d4 44. Rxc6 Rc3 45. Rd6 Ke5 46. Rg6 Rxc5 47. Rxg5+ Kd6 48. Rg6+ Kd5 49. Kf2 Kc4 50. Ke2 Kc3 51. Rd6 Re5+ 52. Kd1 Re3 53. Ra6 d3 54. Rc6+ Kd4 55. h4 Re4 56. Kd2 Rxh4 57. Rd6+ Kc4 58. Rc6+ Kd5 59. Rc3 Rh2+ 0-1

[Event "GER-chT Nord-West U20 1112"]
[Site "Germany"]
[Date "2011.11.05"]
[Round "2"]
[White "Ukena, Riko"]
[Black "Skambraks, Torge"]
[Result "1/2-1/2"]
[ECO "A25"]
[PlyCount "68"]
[EventDate "2011.09.24"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e5 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 0-0 6. Nge2 Re8 7. d3 d6 8. 0-0 a6 9. a3 Qe7 10. b4 Ba7 11. Bb2 Be6 12. h3 Qd7 13. Kh2 d5 14. cxd5 Nxd5 15. Nxd5 Bxd5 16. Bxd5 Qxd5 17. Nc3 Qd7 18. Qc2 Rad8 19. Rad1 Qe6 20. Ne4 h6 21. Nc5 Bxc5 22. Qxc5 Rd5 23. Qc3 Red8 24. Rd2 Qg6 25. Rfd1 Kh8 26. Qc4 Qf6 27. Kg2 Qe7 28. Qc3 f6 29. Qc2 R8d7 30. d4 exd4 31. Bxd4 Nxd4 32. Rxd4 Rxd4 33. Rxd4 Rxd4 34. exd4 Qd7 1/2-1/2

[Event "Harburg-chG 8th"]
[Site "Hamburg"]
[Date "2010.08.22"]
[Round "4"]
[White "Rosenburg, Thies"]
[Black "Ukena, Riko"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1589"]
[BlackElo "1571"]
[PlyCount "93"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. f3 0-0 9. Qd2 Bd7 10. 0-0-0 Rc8 11. h4 Qc7 12. g4 a6 13. h5 b5 14. hxg6 fxg6 15. Bh6 Nxd4 16. Qxd4 Bxh6+ 17. Rxh6 a5 18. Rd2 Qc5 19. Qxc5 Rxc5 20. Nd5 Nxd5 21. Rxd5 Rxd5 22. exd5 Bc8 23. Rh1 b4 24. Kd2 Bb7 25. Ke3 Bxd5 26. b3 Kg7 27. Rd1 Bc6 28. Rd4 Rc8 29. Bc4 Bb7 30. g5 Rc5 31. Rf4 Rf5 32. Rxf5 gxf5 33. Be6 Kg6 34. Kf4 Kh5 35. Kxf5 Bxf3 36. Bf7+ Kh4 37. Bg8 Bg4+ 38. Kf4 e5+ 39. Ke4 Kxg5 40. Bxh7 Kf6 41. Kd5 Bf5 42. Bxf5 Kxf5 43. Kxd6 e4 44. Kc5 e3 45. Kb5 e2 46. Kxa5 e1Q 47. Kb5 0-1

[Event "Harburg-chG 8th"]
[Site "Hamburg"]
[Date "2010.08.22"]
[Round "5"]
[White "Ukena, Riko"]
[Black "Janke, Hendrik"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "1571"]
[BlackElo "1523"]
[PlyCount "68"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Nc6 4. Nc3 Bg7 5. a3 d6 6. Nf3 Nf6 7. 0-0 0-0 8. Rb1 Bf5 9. d3 Rb8 10. b4 cxb4 11. axb4 a6 12. b5 Na7 13. Be3 Ra8 14. Nd4 axb5 15. Nxf5 gxf5 16. Bxa7 Rxa7 17. Nxb5 Ra2 18. Bxb7 Kh8 19. Nd4 Qd7 20. Qb3 Ra5 21. Nc6 Rc5 22. Qb6 f4 23. Rb5 Qh3 24. Rxc5 Ng4 25. Rh5 Qxh5 26. h4 Ne5 27. Nxe5 Bxe5 28. d4 Bf6 29. Bf3 Qh6 30. Kh2 Rg8 31. Kh3 fxg3 32. fxg3 Qg7 33. g4 Bxd4 34. Qb1 Qh6 1/2-1/2

[Event "Harburg-chG 8th"]
[Site "Hamburg"]
[Date "2010.08.21"]
[Round "3"]
[White "Schoknecht, Sabine"]
[Black "Ukena, Riko"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1595"]
[BlackElo "1571"]
[PlyCount "36"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. c3 g6 4. e3 Bg7 5. Nd2 0-0 6. Be2 Nbd7 7. g4 c5 8. a3 cxd4 9. exd4 Re8 10. h4 e5 11. dxe5 Nxe5 12. Bxe5 Rxe5 13. f4 Re7 14. g5 Ng4 15. Nf1 Qb6 16. Nh3 Qxb2 17. Nd2 Bxc3 18. Rb1 Bxd2+ 0-1

[Event "Harburg-chG 8th"]
[Site "Hamburg"]
[Date "2010.08.21"]
[Round "2"]
[White "Ukena, Riko"]
[Black "Frenzel, Uwe"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "1571"]
[BlackElo "1561"]
[PlyCount "76"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4 Be7 6. Nc3 0-0 7. Nf3 b6 8. 0-0 Bb7 9. Re1 d5 10. cxd5 cxd5 11. Ne5 Bc5 12. Qd3 Na6 13. a3 Nc7 14. b4 Bd6 15. Nf3 Re8 16. Bb2 Qd7 17. Rad1 Rad8 18. Nd2 Be5 19. f4 Bxc3 20. Bxc3 Qe7 21. Bxf6 Qxf6 22. Nb3 Qe7 23. Nd4 g6 24. b5 Rd6 25. Rc1 Qd7 26. Qc3 Nxb5 27. Nxb5 Qxb5 28. Qb4 Qd7 29. Rc2 Ba6 30. Rec1 Bc4 31. Rd2 b5 32. e4 a5 33. Qc5 Rc6 34. Qd4 Rd6 35. exd5 Rd8 36. Rcd1 a4 37. Bf1 Rxd5 38. Qf6 Rxd2 0-1

[Event "Harburg-chG 8th"]
[Site "Hamburg"]
[Date "2010.08.20"]
[Round "1"]
[White "Rosenburg, Hauke"]
[Black "Ukena, Riko"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "1618"]
[BlackElo "1571"]
[PlyCount "41"]
[EventDate "2010.08.20"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. e3 Nc6 7. Be2 0-0 8. 0-0 b6 9. a3 a5 10. Bf3 Bb7 11. Qa4 Nxd4 12. Bxb7 Ra7 13. exd4 Rxb7 14. Qb5 Qc7 15. g3 Qc6 16. Re1 Qxb5 17. Nxb5 d5 18. cxd5 Nxd5 19. Be3 Rc8 20. Rac1 Rbb8 21. Kf1 1/2-1/2

[Event "Hamburg-ch U14"]
[Site "Schoenhagen"]
[Date "2009.03.16"]
[Round "3"]
[White "Groetzbach, Daniel"]
[Black "Ukena, Riko"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1586"]
[BlackElo "1425"]
[PlyCount "117"]
[EventDate "2009.03.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Nxf6+ Bxf6 11. Bxf6 Qxf6 12. Qd5 Bb7 13. Be2 0-0 14. Qd3 Nd4 15. 0-0 Qg6 16. f3 f5 17. exf5 Rxf5 18. Rf2 Raf8 19. Raf1 Qh6 20. c3 Nxe2+ 21. Qxe2 Rh5 22. g3 Rhf5 23. Nc2 Qf6 24. Ne1 Qf7 25. b3 Qc7 26. Qd3 Qc5 27. Kg2 e4 28. Qd4 Qxd4 29. cxd4 exf3+ 30. Nxf3 h5 31. h4 R8f6 32. a3 Kf8 33. a4 bxa4 34. bxa4 Bd5 35. a5 Kf7 36. Rc1 Rxf3 37. Rxf3 Rxf3 38. Kh2 Rf2+ 39. Kg1 Rg2+ 40. Kf1 Rxg3 41. Rc7+ Ke6 42. Kf2 Rg4 43. Kf1 g6 44. Rg7 Be4 45. Ra7 Rxh4 46. Kf2 Bd3 47. Ke3 Bc4 48. Rc7 d5 49. Rc6+ Kf5 50. Kf3 Rxd4 51. Rc8 Re4 52. Rf8+ Kg5 53. Rd8 Rd4 54. Rb8 h4 55. Rb1 Rg4 56. Re1 Rf4+ 57. Kg2 Kg4 58. Kh2 Rf2+ 59. Kh1 0-1

[Event "Hamburg-ch U14"]
[Site "Schoenhagen"]
[Date "2009.03.15"]
[Round "2"]
[White "Ukena, Riko"]
[Black "Pfeiffer, Daniel"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "1425"]
[BlackElo "1793"]
[PlyCount "42"]
[EventDate "2009.03.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. e3 d6 5. g3 0-0 6. Bg2 c5 7. 0-0 Nc6 8. b3 Qb6 9. Bb2 Ne8 10. Na3 Nc7 11. Nc2 a5 12. Rb1 Na6 13. dxc5 Nxc5 14. Bxg7 Kxg7 15. Ncd4 Bg4 16. Nxc6 bxc6 17. Qd4+ e5 18. Qxg4 f5 19. Qg5 Ne4 20. Qh4 h6 21. g4 g5 1/2-1/2

[Event "Hamburg-ch U14"]
[Site "Schoenhagen"]
[Date "2009.03.14"]
[Round "1"]
[White "John, Arne"]
[Black "Ukena, Riko"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1208"]
[BlackElo "1425"]
[PlyCount "80"]
[EventDate "2009.03.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Bc4 e6 5. Nf3 Nc6 6. Nxc3 Bb4 7. Bd2 Nge7 8. 0-0 0-0 9. a3 Bxc3 10. Bxc3 a6 11. a4 b6 12. Nd4 Nxd4 13. Qxd4 f6 14. Qd6 Nc6 15. Bxe6+ dxe6 16. Qxc6 Bd7 17. Qd6 Rc8 18. Bb4 Re8 19. Rfd1 Bc6 20. Qg3 Qc7 21. Bd6 Qb7 22. e5 f5 23. b3 Bd5 24. Rac1 Rc6 25. b4 Rec8 26. Rxc6 Qxc6 27. Be7 Kf7 28. Bg5 h6 29. Bd2 Qc2 30. Rf1 Qxd2 31. Qa3 Rc3 32. Qa1 Rc2 33. Qd1 Qg5 34. g3 Rd2 35. Qc1 Qg4 36. f3 Qd4+ 37. Kh1 Bxf3+ 38. Rxf3 Rd1+ 39. Rf1 Rxc1 40. Rxc1 Qe4+ 0-1

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.06"]
[Round "5"]
[White "Boehme, Matthias"]
[Black "Ukena, Riko"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "70"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d3 Nf6 5. Ng5 Be6 6. Bxe6 fxe6 7. Nxe6 Qd7 8. Nxf8 Rxf8 9. Nc3 0-0-0 10. Bg5 Nd4 11. 0-0 Rfe8 12. Bxf6 gxf6 13. Qh5 Nxc2 14. Rac1 Nd4 15. Nd5 Ne6 16. Qf5 Qf7 17. Rc2 Kb8 18. Rfc1 c5 19. b4 cxb4 20. Nxb4 Nd4 21. Rc8+ Rxc8 22. Nc6+ bxc6 23. Rb1+ Ka8 24. Qh3 Qxa2 25. Rf1 Rb8 26. Qe3 Rb1 27. h3 Rxf1+ 28. Kxf1 Qb1+ 29. Qe1 Rb8 30. h4 Nc2 31. Kg1 Nxe1 32. Kh2 Qxd3 33. h5 Rb1 34. g3 Nf3+ 35. Kh3 Qf1+ 0-1

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.06"]
[Round "7"]
[White "Ukena, Riko"]
[Black "Hort, Max"]
[Result "0-1"]
[ECO "C66"]
[PlyCount "42"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d3 a6 5. Bxc6+ bxc6 6. Nc3 Nf6 7. 0-0 Bg4 8. Bg5 h6 9. Be3 d5 10. exd5 cxd5 11. Qd2 Bxf3 12. gxf3 d4 13. Ne4 dxe3 14. fxe3 Nxe4 15. fxe4 Bc5 16. Qc3 Bxe3+ 17. Kh1 Bd4 18. Qc6+ Kf8 19. c3 Bb6 20. Qc4 Qe7 21. Rf2 Bxf2 0-1

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.06"]
[Round "6"]
[White "Ukena, Riko"]
[Black "Stenzel, Jan"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "65"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 Bc5 4. Nc3 Nc6 5. Be2 0-0 6. 0-0 d6 7. Bg5 Be6 8. Re1 h6 9. Bxf6 Qxf6 10. Nb5 Rad8 11. Nxc7 Bd7 12. Nd5 Qg6 13. d4 exd4 14. g3 Qxe4 15. Bc4 Qg6 16. Re7 Be6 17. Rxb7 Rfe8 18. b3 Kh8 19. Nf4 Qh7 20. Nxe6 fxe6 21. Bb5 Rc8 22. Bxc6 Rxc6 23. Rf7 Bb6 24. Nxd4 Bxd4 25. Qxd4 e5 26. Qxa7 Rg8 27. c4 e4 28. Re1 Rcc8 29. Rd7 Ra8 30. Qd4 Rxa2 31. Rxe4 Qf5 32. Rxd6 Qf3 33. Rxh6# 1-0

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.05"]
[Round "3"]
[White "Kalauch, Lucas"]
[Black "Ukena, Riko"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "37"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bb4 5. 0-0 Bxc3 6. bxc3 Nxe4 7. Re1 Nf6 8. Nxe5 0-0 9. Nf3 Re8 10. d3 b6 11. Ng5 Re7 12. Bb5 Bb7 13. Bb2 Rxe1+ 14. Qxe1 Ng4 15. Qe4 Qxg5 16. Re1 g6 17. c4 Qh5 18. Qe8+ Rxe8 19. Rxe8# 1-0

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.05"]
[Round "1"]
[White "Roehricht, Connor"]
[Black "Ukena, Riko"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "74"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Bc4 Nf6 5. d3 d6 6. Bg5 0-0 7. 0-0 b6 8. Bxf6 Qxf6 9. Qe2 Bxc3 10. bxc3 Bg4 11. h3 Bxf3 12. Qxf3 Qxf3 13. gxf3 Rfe8 14. Rfe1 g6 15. Kf1 Na5 16. Rad1 Nxc4 17. dxc4 Rad8 18. c5 dxc5 19. Rxd8 Rxd8 20. Ke2 b5 21. Rb1 a6 22. a3 c6 23. Ke3 a5 24. f4 exf4+ 25. Kxf4 Rd2 26. Ke3 Rxc2 27. f3 Rxc3+ 28. Ke2 Rxa3 29. e5 Kg7 30. Re1 f6 31. Kd2 fxe5 32. Rxe5 c4 33. Rc5 c3+ 34. Rxc3 Rxc3 35. Kxc3 b4+ 36. Kb3 Kf6 37. Ka4 Ke5 0-1

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.05"]
[Round "2"]
[White "Ukena, Riko"]
[Black "Garbers, Boriss"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "127"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d3 Bg4 6. Nc3 Bxf3 7. Qxf3 Nf6 8. Bg5 Be7 9. 0-0-0 0-0 10. Qe3 Ng4 11. Bxe7 Nxe3 12. Bxd8 Nxd1 13. Be7 Rae8 14. Rxd1 Rxe7 15. Ne2 Re6 16. Ng3 Rh6 17. h3 Rg6 18. d4 Rd8 19. dxe5 Rxd1+ 20. Kxd1 Re6 21. f4 b5 22. f5 Rxe5 23. Ke2 g6 24. Kf3 gxf5 25. Nxf5 c5 26. Kf4 Rxf5+ 27. Kxf5 Kf8 28. Ke5 Ke7 29. Kd5 h5 30. Kxc5 Ke6 31. Kd4 Kd6 32. e5+ Kc6 33. Ke4 b4 34. Kf5 Kc5 35. c3 bxc3 36. bxc3 a5 37. Kf6 Kd5 38. g4 hxg4 39. hxg4 Ke4 40. g5 Kf4 41. Kxf7 Kxe5 42. g6 c5 43. g7 Ke4 44. g8Q Kd3 45. Qg3+ Kc4 46. Qd6 Kxc3 47. Qxc5+ Kb2 48. Qxa5 Kc2 49. Qb4 Kd3 50. Qc5 Ke4 51. Qd6 Kf5 52. Qe7 Kf4 53. Qe6 Kf3 54. Qe5 Kf2 55. Qe4 Kf1 56. Qe3 Kg2 57. Qf4 Kg1 58. Qf3 Kh2 59. Kg6 Kg1 60. Kg5 Kh2 61. Kg4 Kg1 62. Qe2 Kh1 63. Kg3 Kg1 64. Qg2# 1-0

[Event "Hamburg State-ch U10"]
[Site "Hamburg"]
[Date "2005.03.05"]
[Round "4"]
[White "Ukena, Riko"]
[Black "Pfeiffer, Daniel"]
[Result "0-1"]
[ECO "B50"]
[BlackElo "1452"]
[PlyCount "74"]
[EventDate "2005.03.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bb5+ Nbd7 5. d3 a6 6. Bc4 b5 7. Bd5 Nxd5 8. Nxd5 e6 9. Nc3 Be7 10. 0-0 Bb7 11. b3 b4 12. Ne2 0-0 13. Bb2 Bf6 14. Bxf6 Nxf6 15. Nf4 Qc7 16. Ng5 Rfe8 17. Nh5 Nxh5 18. Qxh5 h6 19. Nf3 a5 20. Rfe1 a4 21. bxa4 Rxa4 22. e5 Bxf3 23. gxf3 d5 24. f4 d4 25. Red1 Rea8 26. Qf3 Qd8 27. Qc6 Qc8 28. Qxc8+ Rxc8 29. Rd2 Rca8 30. c4 dxc3 31. Rc2 Rxa2 32. Rcxa2 Rxa2 33. Rxa2 b3 34. Ra8+ Kh7 35. Rb8 c2 36. Rxb3 c1Q+ 37. Kg2 Qxf4 0-1

