[Event "Wasselonne op 23rd"]
[Site "Wasselonne"]
[Date "2019.08.01"]
[Round "1"]
[White "Katz, Leo"]
[Black "Pirverdiyev, Agil"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1963"]
[BlackElo "2414"]
[PlyCount "46"]
[EventDate "2019.08.01"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "FRA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 c5 4. c3 Be7 5. Nd2 0-0 6. Bd3 b6 7. Qf3 Nc6 8. Qh3 cxd4 9. exd4 e5 10. Bg5 d5 11. g4 g6 12. Bb5 Nxg4 13. Qg2 Bxg5 14. Bxc6 Rb8 15. Ngf3 Bxd2+ 16. Nxd2 exd4 17. Qxd5 Re8+ 18. Kf1 Ba6+ 19. c4 Qh4 20. Qg2 Re6 21. Bd5 Rf6 22. Ne4 Ne3+ 23. Kg1 Nxg2 0-1

[Event "Verbandsliga Suedbaden 1819"]
[Site "Baden"]
[Date "2019.03.10"]
[Round "7.7"]
[White "Schmid, Joachim"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1722"]
[BlackElo "1963"]
[PlyCount "54"]
[EventDate "2018.10.14"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Konstanz"]
[BlackTeam "Baden-Baden IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Bf4 Nf6 3. c3 e6 4. e3 c5 5. Nd2 Nc6 6. Be2 Bd6 7. Bg3 e5 8. dxe5 Nxe5 9. Ngf3 Qe7 10. Nxe5 Bxe5 11. Bxe5 Qxe5 12. Bb5+ Bd7 13. Bxd7+ Nxd7 14. Qg4 0-0-0 15. 0-0-0 f5 16. Qg3 Qxg3 17. hxg3 Nf6 18. Kc2 Ng4 19. Rhf1 d4 20. exd4 cxd4 21. cxd4 Rxd4 22. Nf3 Rxd1 23. Kxd1 Re8 24. Kd2 Rd8+ 25. Ke2 Re8+ 26. Kd2 Rd8+ 27. Ke2 Re8+ 1/2-1/2

[Event "Verbandsliga Suedbaden 1617"]
[Site "Baden"]
[Date "2017.05.14"]
[Round "9.6"]
[White "Katz, Leo"]
[Black "Kramer, Gerald"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1881"]
[BlackElo "2018"]
[PlyCount "79"]
[EventDate "2016.10.09"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Baden Baden IV"]
[BlackTeam "Hoerden"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. Bf4 e6 3. Nf3 Bd6 4. Bg3 Nf6 5. Nbd2 Ne4 6. e3 Nxd2 7. Qxd2 c5 8. Bb5+ Nc6 9. dxc5 Bxc5 10. Qc3 Bf8 11. Ne5 Bd7 12. Nxc6 bxc6 13. Bxc6 Rc8 14. Bxd7+ Qxd7 15. Qb3 Qc6 16. c3 Be7 17. 0-0 0-0 18. Rfd1 f6 19. Rd2 Kh8 20. Rad1 Rfd8 21. Rd4 g5 22. h4 Bc5 23. R4d3 Rg8 24. h5 Rg7 25. Qc2 Qe8 26. Qe2 Qb5 27. b4 Bb6 28. e4 d4 29. cxd4 Bxd4 30. Qg4 Be5 31. Rd8+ Rg8 32. Rxg8+ Rxg8 33. Qxe6 Re8 34. Qf7 Bxg3 35. Qxf6+ Kg8 36. Rd5 Bxf2+ 37. Kxf2 Qxd5 38. exd5 Rf8 39. Qxf8+ Kxf8 40. Ke3 1-0

[Event "Verbandsliga Sued Baden 1213"]
[Site "Baden"]
[Date "2013.02.17"]
[Round "6.6"]
[White "Katz, Leo"]
[Black "Geiger, Bernd Thorsten"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1858"]
[PlyCount "69"]
[EventDate "2012.10.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Baden-Baden IV"]
[BlackTeam "Iffezheim"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 c5 2. c3 e6 3. Nf3 Nf6 4. Bf4 Nc6 5. e3 d5 6. h3 Bd6 7. Bxd6 Qxd6 8. Bd3 0-0 9. 0-0 e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. Nd2 Ne4 13. Nf3 Qe7 14. Qe2 b6 15. Rfd1 Nd6 16. Nh2 Bb7 17. Rac1 f5 18. a4 Rae8 19. Ba6 Ba8 20. Qc2 Rf6 21. Be2 f4 22. Ng4 Re6 23. Bf3 h5 24. Nh2 fxe3 25. fxe3 Qg5 26. Nf1 Ne4 27. Rd3 Rf8 28. Qe2 Bc6 29. Bxh5 Nf2 30. Bg4 Re4 31. Ng3 Nxd3 32. Nxe4 dxe4 33. Rd1 Rf2 34. Qxf2 Nxf2 35. Kxf2 0-1

[Event "GER-chT U16"]
[Site "Naumburg"]
[Date "2012.12.29"]
[Round "5"]
[White "Katz, Leo"]
[Black "Xiong, Ferdinand"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1892"]
[BlackElo "1987"]
[PlyCount "96"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Baden-Baden"]
[BlackTeam "Vaterstetten"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. h3 d6 5. e3 0-0 6. Nbd2 Nbd7 7. Bc4 c5 8. c3 a6 9. a4 b6 10. 0-0 Bb7 11. Qe2 Re8 12. Ng5 d5 13. Ba2 e5 14. dxe5 Nxe5 15. Bxe5 Rxe5 16. Ngf3 Re7 17. Qd3 Qf8 18. Qc2 Ne4 19. Nxe4 dxe4 20. Nd2 Rd8 21. Rfd1 Red7 22. Nc4 b5 23. Na5 Ba8 24. Rxd7 Rxd7 25. Rd1 Qd8 26. Rxd7 Qxd7 27. Nb3 Qd6 28. axb5 axb5 29. Qd2 Qxd2 30. Nxd2 c4 31. Bb1 f5 32. g4 Kf7 33. Kg2 Ke6 34. f4 Bd5 35. Bc2 Kd6 36. Kf2 Kc5 37. Ke2 b4 38. Nb1 Kb5 39. Kd2 Ka5 40. Kc1 fxg4 41. hxg4 h5 42. gxh5 gxh5 43. Bd1 h4 44. Bg4 Kb5 45. Kc2 Kc5 46. Nd2 Bc6 47. Bf5 Ba4+ 48. Kc1 bxc3 1/2-1/2

[Event "GER-chT U16"]
[Site "Naumburg"]
[Date "2012.12.29"]
[Round "6"]
[White "Peczely, Sebastian Zsombor"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2024"]
[BlackElo "1892"]
[PlyCount "47"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Leipzig Schachgemeinschaft"]
[BlackTeam "Baden-Baden"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Bxe4 7. Bxe4 c6 8. c3 Nd7 9. 0-0 Ngf6 10. Bc2 Bd6 11. Re1 Qc7 12. Qe2 0-0 13. Bg5 Rfe8 14. Rad1 Nd5 15. Qd3 Nf8 16. Bh4 Nf4 17. Qd2 N8g6 18. Bg3 Rad8 19. Ng5 Nh5 20. Qe2 Nxg3 21. hxg3 Be7 22. Nxf7 Ra8 23. Qxe6 Bf6 24. Nh6+ 1-0

[Event "GER-chT U16"]
[Site "Naumburg"]
[Date "2012.12.28"]
[Round "4"]
[White "Yankelevich, Lev"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2180"]
[BlackElo "1892"]
[PlyCount "95"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Trier"]
[BlackTeam "Baden-Baden"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 Be7 6. Ne2 0-0 7. 0-0 c6 8. c4 Nbd7 9. Nbc3 Nb6 10. b3 a5 11. Bf4 Re8 12. Qc2 Bf8 13. Rad1 g6 14. Rd2 Bg7 15. Rfd1 Qe7 16. Ng3 a4 17. Nge4 Nxe4 18. Nxe4 e5 19. dxe5 Bxe5 20. Bg5 f6 21. Be3 Qc7 22. Nd6 Rd8 23. Nxc8 Raxc8 24. Rxd8+ Rxd8 25. Rxd8+ Qxd8 26. bxa4 Nc8 27. g3 Ne7 28. Be4 Kg7 29. Kg2 Qd7 30. a5 Nc8 31. a6 bxa6 32. Qa4 Ne7 33. Qxa6 f5 34. Bf3 Bf6 35. Qa7 Qe6 36. Bd4 Kf7 37. Bxf6 Kxf6 38. Qd4+ Kf7 39. a4 g5 40. Bh5+ Ng6 41. a5 Qc8 42. h3 Qa8 43. Qc5 Qe8 44. Qxf5+ Kg7 45. a6 c5 46. Bxg6 hxg6 47. Qf3 Qa4 48. Qb7+ 1-0

[Event "GER-chT U16"]
[Site "Naumburg"]
[Date "2012.12.27"]
[Round "1"]
[White "Katz, Leo"]
[Black "Knopf, Felix"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "1892"]
[BlackElo "1922"]
[PlyCount "141"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Baden-Baden"]
[BlackTeam "Merseburg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nc6 5. Nf3 Nf6 6. Bf4 Qb6 7. Na4 Qb4+ 8. Bd2 Qd6 9. Qc2 g6 10. Qc5 Qxc5 11. Nxc5 Ne4 12. e3 Nxc5 13. dxc5 Bg7 14. Bc3 Bxc3+ 15. bxc3 Be6 16. Nd4 Ne5 17. Rb1 Bc8 18. Bb5+ Bd7 19. Bxd7+ Nxd7 20. Rxb7 Nxc5 21. Rc7 Ne6 22. Nxe6 fxe6 23. Ke2 Kf7 24. Rb1 Rhc8 25. Rbb7 Rxc7 26. Rxc7 e5 27. e4 dxe4 28. Ke3 Ke6 29. Kxe4 Kd6 30. Rb7 Rc8 31. Rb3 Rc4+ 32. Kd3 Ra4 33. Rb2 Kc5 34. f3 g5 35. Re2 Kd6 36. Rc2 Kc5 37. Rb2 h6 38. Re2 Kd6 39. Rb2 Kc5 40. Re2 Kd6 41. c4 Ra3+ 42. Ke4 Rc3 43. Kf5 Rxc4 44. Kg6 Ke6 45. g4 Rf4 46. Kxh6 Kf6 47. h4 Rxf3 48. hxg5+ Kf7 49. g6+ Kg8 50. Rxe5 Rh3+ 51. Kg5 Ra3 52. Re2 Ra4 53. Rh2 Kg7 54. Rh7+ Kg8 55. Rxe7 Rxa2 56. Kh6 Rh2+ 57. Kg5 Ra2 58. Re5 Kg7 59. Rf5 Ra1 60. Rf7+ Kg8 61. Kf6 Ra6+ 62. Kg5 Ra1 63. Re7 Ra2 64. g7 Ra6 65. Kh5 Ra5+ 66. g5 Ra6 67. Rc7 Rb6 68. Rxa7 Kh7 69. g6+ Kg8 70. Kh6 Rxg6+ 71. Kxg6 1/2-1/2

[Event "GER-chT U16"]
[Site "Naumburg"]
[Date "2012.12.27"]
[Round "2"]
[White "Koop, Thorben"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "E18"]
[WhiteElo "2186"]
[BlackElo "1892"]
[PlyCount "81"]
[EventDate "2012.12.27"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Lingen"]
[BlackTeam "Baden-Baden"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. c4 Be7 6. Nc3 0-0 7. Qc2 c5 8. Rd1 d6 9. d4 cxd4 10. Rxd4 a6 11. b3 Qc7 12. Ba3 Rd8 13. Rad1 Nc6 14. R4d2 Na5 15. e4 Rac8 16. Nd4 Ne8 17. Qd3 b5 18. cxb5 Nxb3 19. Nxb3 Qxc3 20. Qxc3 Rxc3 21. bxa6 Bxa6 22. e5 Rb8 23. exd6 Bd8 24. Bb2 Rc4 25. Be5 Nf6 26. d7 Rb5 27. Bxf6 gxf6 28. Bf1 Rc7 29. Rd6 Rxb3 30. axb3 Bxf1 31. Kxf1 Kf8 32. b4 Rb7 33. R6d4 f5 34. Ke2 Rb8 35. Rc4 Rb7 36. Rd3 Ke7 37. Kd2 Rxd7 38. Rxd7+ Kxd7 39. Kd3 Bb6 40. f3 Bg1 41. Rh4 1-0

[Event "Verbandsliga Sued Baden 1213"]
[Site "Baden"]
[Date "2012.11.18"]
[Round "2.6"]
[White "Wehrle, Uwe"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2117"]
[BlackElo "1863"]
[PlyCount "99"]
[EventDate "2012.10.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]
[WhiteTeam "Horben"]
[BlackTeam "Baden-Baden IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. Nf3 d5 3. g3 b6 4. Bg2 Bb7 5. 0-0 e6 6. Bg5 Nbd7 7. Ne5 Be7 8. c4 c6 9. cxd5 cxd5 10. Qa4 0-0 11. Nxd7 Nxd7 12. Bxe7 Qxe7 13. Nc3 Rfc8 14. Rfc1 Rc4 15. Qxc4 dxc4 16. Bxb7 Rb8 17. Bc6 Nf6 18. a3 Qd6 19. Bb5 Qxd4 20. Rd1 Qc5 21. a4 Qc8 22. Rd4 a6 23. Rxc4 Qb7 24. Bc6 Qe7 25. Bf3 Rd8 26. Rc1 g6 27. Rc2 Kg7 28. e3 Nd7 29. Rc7 Qf6 30. Be2 Nc5 31. Rc6 Qf5 32. Rc1 Nb3 33. Rd1 Rxd1+ 34. Bxd1 Nd2 35. Rxb6 Nb1 36. Be2 Nxc3 37. bxc3 Qa5 38. Rxa6 Qxc3 39. Bb5 Qc1+ 40. Kg2 Qb1 41. Rd6 Qe4+ 42. Kg1 h5 43. Rd4 Qb1+ 44. Kg2 Qc2 45. h4 Qb1 46. Rc4 Kf6 47. Rf4+ Ke7 48. Rd4 Kf6 49. Rc4 Qd1 50. Rd4 1/2-1/2

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.06.02"]
[Round "9"]
[White "Arnoczky, Philipp"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2031"]
[BlackElo "1911"]
[PlyCount "60"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. 0-0 Nbd7 8. Qc2 0-0 9. b3 b6 10. Bc3 Bb7 11. Nbd2 c5 12. Rfd1 Rc8 13. Ne5 Qc7 14. Nxd7 Qxd7 15. Nf3 Qc7 16. dxc5 dxc4 17. b4 bxc5 18. Be5 Qc6 19. Ne1 Qb5 20. bxc5 Bxc5 21. Rab1 Bxf2+ 22. Kf1 Bxg2+ 23. Nxg2 Qc5 24. Bd6 Qh5 25. Bxf8 Qxh2 26. Kxf2 Ng4+ 27. Kf3 Ne5+ 28. Kf2 Ng4+ 29. Kf3 Ne5+ 30. Kf2 Ng4+ 1/2-1/2

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.06.01"]
[Round "8"]
[White "Katz, Leo"]
[Black "Persch, Adrian"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "1911"]
[BlackElo "1873"]
[PlyCount "86"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. f4 dxe4 4. Nxe4 Nf6 5. Nf2 Qb6 6. Nf3 Na6 7. Bc4 Nd5 8. Bxd5 cxd5 9. 0-0 Bg4 10. Kh1 Bxf3 11. Qxf3 0-0-0 12. Nd3 Nb4 13. Nxb4 Qxb4 14. Qc3+ Qxc3 15. dxc3 e6 16. Be3 b6 17. Bd4 f6 18. Rae1 Re8 19. Rf3 Kd7 20. Rg3 Ke7 21. Kg1 Kf7 22. Kf2 Bd6 23. Rf3 Rc8 24. Ke2 Rc6 25. Kd2 a5 26. g3 Rhc8 27. Re2 Bc5 28. Bxc5 bxc5 29. c4 dxc4 30. Ra3 Ra8 31. Re4 Ke7 32. Rxc4 e5 33. Re3 Kd6 34. fxe5+ fxe5 35. Rce4 Re8 36. Rb3 Kd5 37. Re2 Re7 38. Rb8 c4 39. Ra8 Rc5 40. Rd8+ Ke6 41. Rb8 Rd7+ 42. Kc3 Re7 43. Re4 Kf5 1/2-1/2

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.31"]
[Round "7"]
[White "Kuehne, Niklas"]
[Black "Katz, Leo"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "1753"]
[BlackElo "1911"]
[PlyCount "116"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 Be7 4. Bf4 Nf6 5. Nf3 0-0 6. e3 c5 7. Bd3 dxc4 8. Bxc4 a6 9. a4 cxd4 10. exd4 Nbd7 11. 0-0 Nb6 12. Bd3 Nbd5 13. Bg3 b6 14. Rc1 Bb7 15. Bb1 Rc8 16. Re1 Bd6 17. Ne5 Qe7 18. Bh4 Nf4 19. Be4 Ng6 20. Bxf6 gxf6 21. Bxb7 Qxb7 22. Nxg6 hxg6 23. Ne4 Be7 24. Qf3 Kg7 25. h3 Qd5 26. Rxc8 Rxc8 27. Qd3 Rc4 28. Rd1 e5 29. Nc3 Qxd4 30. Qxd4 Rxd4 31. Rxd4 exd4 32. Nd5 Bc5 33. b4 Bd6 34. Kf1 a5 35. bxa5 bxa5 36. Ke2 f5 37. Kd3 Bb8 38. Ne7 Kf6 39. Nc6 Bc7 40. Nxd4 Ke5 41. Ne2 Kd5 42. f3 Kc5 43. Kc3 Be5+ 44. Kb3 Bf6 45. g3 Be5 46. g4 fxg4 47. fxg4 Bf6 48. Nc3 Bxc3 49. Kxc3 g5 50. Kd3 Kb4 51. Ke4 Kxa4 52. Kf5 Kb4 53. Kxg5 a4 54. Kf6 a3 55. Kxf7 a2 56. Kg6 a1Q 57. h4 Qh8 58. h5 Kc5 0-1

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.30"]
[Round "6"]
[White "Kardoeus, David"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1857"]
[BlackElo "1911"]
[PlyCount "81"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Nf6 3. e3 c5 4. Nf3 Nc6 5. Bb5 Bd7 6. 0-0 e6 7. d3 Be7 8. Nbd2 0-0 9. Bxc6 Bxc6 10. Ne5 Qc7 11. f4 Rad8 12. Qe2 b6 13. Nxc6 Qxc6 14. Nf3 Nd7 15. e4 d4 16. Rae1 b5 17. g4 e5 18. f5 Rc8 19. c3 Rfd8 20. Rc1 Qd6 21. c4 a6 22. g5 f6 23. h4 Rc6 24. Rc2 Nb6 25. Bc1 bxc4 26. bxc4 Nd7 27. Qg2 Bf8 28. Qg3 Re8 29. h5 Qe7 30. Rh2 Kh8 31. Nh4 Qf7 32. g6 Qg8 33. gxh7 Qxh7 34. Ng6+ Kg8 35. h6 Kf7 36. hxg7 Qxg7 37. Bh6 Qg8 38. Kf2 Rb8 39. Kf3 Rbb6 40. Bxf8 Nxf8 41. Nh8+ 1-0

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.29"]
[Round "4"]
[White "Katz, Leo"]
[Black "Kreyssig, Robert"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1911"]
[BlackElo "2005"]
[PlyCount "110"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d6 6. e3 c5 7. Nge2 Nc6 8. 0-0 Rb8 9. b3 Bd7 10. Bb2 a6 11. d5 Na5 12. Qc2 b5 13. cxb5 axb5 14. Rfd1 Qc7 15. Ne4 Nxe4 16. Bxe4 b4 17. Bxg7 Kxg7 18. Bd3 e6 19. Nf4 e5 20. Ng2 Bb5 21. Bc4 Nxc4 22. bxc4 Bd7 23. e4 Ra8 24. Re1 Ra3 25. f4 f6 26. f5 g5 27. Qe2 Rfa8 28. h4 Rxg3 29. hxg5 Rxg5 30. Kf2 Rg8 31. Rh1 Be8 32. Rh2 Kf8 33. Rah1 Qg7 34. Ne3 Rg1 35. Qf3 h5 36. Ng2 Rxh1 37. Rxh1 Qg4 38. Nh4 Qxf3+ 39. Kxf3 Kg7 40. Rg1+ Kh7 41. Ra1 Rg7 42. a4 Ra7 43. a5 b3 44. Rb1 Ba4 45. Ke3 Rxa5 46. Kd3 Ra8 47. Kc3 Rb8 48. Rb2 Be8 49. Rxb3 Rxb3+ 50. Kxb3 Kh6 51. Nf3 h4 52. Nxh4 Kg5 53. Nf3+ Kf4 54. Nd2 Ke3 55. Kc2 Ba4+ 0-1

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.29"]
[Round "5"]
[White "Katz, Leo"]
[Black "Passon, Marcel"]
[Result "1-0"]
[ECO "C69"]
[WhiteElo "1911"]
[BlackElo "1909"]
[PlyCount "117"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. d4 Bg4 7. c3 Bd6 8. Be3 Ne7 9. Nbd2 b5 10. Qb3 Qd7 11. c4 Ng6 12. d5 c5 13. Rfe1 0-0 14. Rac1 b4 15. Qd3 f5 16. exf5 Bxf5 17. Qe2 e4 18. Ng5 Rae8 19. Nb3 Nf4 20. Bxf4 Bxf4 21. Ne6 Bxe6 22. dxe6 Qxe6 23. Rcd1 e3 24. f3 Rf5 25. g3 Bxg3 26. hxg3 Rg5 27. Kg2 Qg6 28. g4 h5 29. Rd5 hxg4 30. Rxg5 gxf3+ 31. Qxf3 Qxg5+ 32. Qg3 Qf5 33. Rxe3 Rf8 34. Rf3 Qe4 35. Nxc5 Qc2+ 36. Rf2 Rxf2+ 37. Qxf2 Qxc4 38. b3 Qd5+ 39. Kg3 Qg5+ 40. Kf3 Qh5+ 41. Ke4 Qh1+ 42. Ke5 Qh5+ 43. Ke6 Qg6+ 44. Kd7 Qd6+ 45. Kc8 g6 46. Nd7 Kg7 47. Kd8 a5 48. Qa7 Qd5 49. Kxc7 g5 50. Qb6 Qf5 51. Qd4+ Kg6 52. Kd6 Kh5 53. Qe5 Qd3+ 54. Ke6 Qh3+ 55. Qf5 Qe3+ 56. Kf7 Kh4 57. Nf6 Qe2 58. Kg6 Qg2 59. Ne4 1-0

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.28"]
[Round "3"]
[White "Stahnecker, Ludwig"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "2144"]
[BlackElo "1911"]
[PlyCount "55"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 0-0 8. Nf3 c5 9. Qd2 Nc6 10. dxc5 Nxc5 11. 0-0-0 a6 12. Bd3 b5 13. Kb1 b4 14. Ne2 a5 15. Rhe1 Ba6 16. Ng3 b3 17. Bxa6 bxa2+ 18. Ka1 Rxa6 19. f5 Rb8 20. f6 gxf6 21. Nh5 Qb7 22. Nxf6+ Kh8 23. Qc1 Qb4 24. Re3 d4 25. Nxd4 Nxd4 26. Rxd4 Qxd4 27. Rh3 Kg7 28. Qh6+ 1-0

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.27"]
[Round "2"]
[White "Grewenig, Jan"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "C05"]
[WhiteElo "2045"]
[BlackElo "1911"]
[PlyCount "61"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. c3 Nf6 5. e5 Nfd7 6. f4 c5 7. Ndf3 Nc6 8. Bd3 b6 9. Ne2 Bb7 10. Be3 Qc7 11. 0-0 f5 12. a3 0-0-0 13. b4 c4 14. Bc2 Rdg8 15. h3 h6 16. Qd2 Qd8 17. Kf2 Nf8 18. Ke1 Kc7 19. Kd1 Bc8 20. Kc1 Bd7 21. Kb2 Be8 22. Rg1 Bf7 23. g4 g6 24. Qe1 Nh7 25. Kc1 Kb7 26. Kd2 Kc7 27. Qb1 Qc8 28. Qb2 Qd8 29. Rab1 Kb7 30. a4 Be8 31. a5 1/2-1/2

[Event "GER-ch U16"]
[Site "Oberhof"]
[Date "2012.05.27"]
[Round "1"]
[White "Katz, Leo"]
[Black "Moehn, Hans"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1911"]
[BlackElo "2109"]
[PlyCount "66"]
[EventDate "2012.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 148 Extra"]
[Source "ChessBase"]
[SourceDate "2012.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Qc7 6. Nc3 Nf6 7. Qc2 b6 8. Be2 Bb7 9. Be3 Be7 10. 0-0-0 d6 11. Rhf1 0-0 12. g4 Re8 13. g5 Nfd7 14. f4 Bf8 15. Rf3 Nc6 16. Nxc6 Bxc6 17. Rh3 g6 18. Bd3 Qb7 19. Qf2 b5 20. Qh4 h5 21. gxh6 Kh7 22. f5 Ne5 23. fxg6+ fxg6 24. c5 dxc5 25. Qg5 Nxd3+ 26. Rxd3 b4 27. Rg3 Qf7 28. Nd1 Bxe4 29. Rd2 Bf5 30. Nf2 e5 31. b3 Be7 32. Rd7 Bxd7 33. Qxe5 Bh4 0-1

[Event "Verbandsliga Sued Baden 1112"]
[Site "Germany"]
[Date "2012.01.29"]
[Round "5.8"]
[White "Katz, Leo"]
[Black "Becker, Andreas"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "1817"]
[BlackElo "2074"]
[PlyCount "126"]
[EventDate "2011.10.09"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Baden-Baden IV"]
[BlackTeam "Zaehringen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Bc4 Nb6 5. Bb3 e6 6. Nf3 c5 7. Qe2 Nc6 8. d3 Be7 9. Bd2 0-0 10. 0-0 Nd4 11. Nxd4 cxd4 12. Ne4 a5 13. a4 Nd5 14. c3 dxc3 15. bxc3 Bd7 16. d4 Bc6 17. Bc2 Nf6 18. Nxf6+ Bxf6 19. Qd3 g6 20. Rfe1 Rc8 21. Bf4 Bd5 22. Reb1 Qd7 23. Bb3 Rfd8 24. Bxd5 Qxd5 25. Rb5 Qc6 26. Bd2 Rd5 27. Qe2 e5 28. dxe5 Bxe5 29. Rab1 Rxb5 30. Rxb5 Bxc3 31. Bxc3 Qxc3 32. h3 Qa1+ 33. Kh2 Qxa4 34. Rxb7 Qf4+ 35. g3 Qf6 36. Ra7 Rb8 37. Kg2 Rb2 38. Qf3 Qxf3+ 39. Kxf3 Ra2 40. g4 h6 41. h4 Ra3+ 42. Kg2 g5 43. hxg5 hxg5 44. Kh2 Kg7 45. Ra6 a4 46. Kg2 Ra2 47. Kg3 Ra1 48. Kh2 Ra2 49. Kg3 Ra3+ 50. Kg2 Ra1 51. Kh2 a3 52. Kg2 a2 53. Kf3 Kf8 54. Ra7 Ke8 55. Kg2 Kd8 56. Kf3 Kc8 57. Kg2 Kb8 58. Ra4 Kc7 59. Ra8 Kb6 60. Ra3 Kb5 61. Ra8 Kc4 62. Rc8+ Kd3 63. Rd8+ Kc4 1/2-1/2

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.05"]
[Round "7"]
[White "Katz, Leo"]
[Black "Hirschberg, Leander"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1727"]
[BlackElo "1752"]
[PlyCount "91"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[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. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 Rb8 13. a4 bxa4 14. Ncb4 Nxb4 15. Nxb4 0-0 16. Nc6 Qb6 17. Nxb8 Qxb2 18. Be2 Qxc3+ 19. Kf1 a3 20. h4 Bd2 21. Ra2 Be6 22. Qxd2 Qxd2 23. Rxd2 Rxb8 24. Bd3 a2 25. Ke2 a5 26. Ra1 a4 27. Raxa2 Bxa2 28. Rxa2 Ra8 29. Ra3 g6 30. Bb5 f5 31. Rxa4 Rxa4 32. Bxa4 Kg7 33. Ke3 Kf6 34. Bc2 h6 35. Bb1 Ke6 36. Ba2+ Kf6 37. Bd5 g5 38. hxg5+ hxg5 39. Kd3 f4 40. Kc4 Ke7 41. Kb5 Kd7 42. Kb6 g4 43. Kb7 Kd8 44. Kc6 Ke7 45. Kc7 f3 46. g3 1-0

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.04"]
[Round "6"]
[White "Jaeschke, Felix"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "1989"]
[BlackElo "1727"]
[PlyCount "42"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bg4 5. Bg2 Nbd7 6. cxd5 cxd5 7. d4 e6 8. 0-0 Bb4 9. Ba3 Bxa3 10. Nxa3 Qa5 11. Nc2 0-0 12. Nh4 Rac8 13. h3 Bh5 14. g4 Bg6 15. Nxg6 hxg6 16. e3 Rc3 17. f3 Rfc8 18. Qd2 Qc7 19. Ne1 Qg3 20. Rf2 Qc7 21. Re2 a6 1/2-1/2

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.04"]
[Round "5"]
[White "Ruff, Maximilian"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1940"]
[BlackElo "1727"]
[PlyCount "48"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nh6 8. b3 Bb4+ 9. Kf1 Nf5 10. Bb2 Be7 11. Nc3 Bd7 12. Na4 Qd8 13. Rc1 0-0 14. Nc5 Rb8 15. g3 f6 16. exf6 Bxf6 17. Kg2 Rf7 18. Bb5 Nd6 19. Bxc6 bxc6 20. Re1 Re7 21. Ne5 Bxe5 22. Rxe5 Nc4 23. Re2 Nxb2 24. Rxb2 e5 1/2-1/2

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.03"]
[Round "3"]
[White "Katz, Leo"]
[Black "Ciolek, Andreas"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1727"]
[BlackElo "1781"]
[PlyCount "24"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 8. Qd2 Be6 9. Nd4 Nxd4 10. cxd4 d5 11. Bd3 Qd7 12. 0-0 0-0 1/2-1/2

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.03"]
[Round "4"]
[White "Katz, Leo"]
[Black "Ehret, Thomas"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1727"]
[BlackElo "1771"]
[PlyCount "138"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bd2 Bf5 7. Bc4 e6 8. Nd5 Qd8 9. Nxf6+ Qxf6 10. c3 Nd7 11. Be3 Bd6 12. Bd3 Bg4 13. Be2 Bxf3 14. Bxf3 0-0 15. Qc2 Rfe8 16. 0-0-0 Bf4 17. Bxf4 Qxf4+ 18. Qd2 Qxd2+ 19. Rxd2 Rac8 20. Kc2 b5 21. Rhd1 Nb6 22. b3 Red8 23. Be4 a5 24. f4 f5 25. Bf3 Nd5 26. Bxd5 cxd5 27. Kd3 Rc6 28. Rc2 Rcd6 29. Ke3 Kf7 30. g3 R8d7 31. c4 bxc4 32. bxc4 dxc4 33. Rxc4 Rd5 34. Rb1 Ke7 35. Rb6 R7d6 36. Rc7+ Rd7 37. Rxd7+ Rxd7 38. Kd3 Ra7 39. a4 h6 40. Rb5 Kd6 41. Kc4 Kc6 42. Re5 Kd6 43. Rc5 Ke7 44. Kb5 Rd7 45. Kxa5 Rxd4 46. Rc2 Rd1 47. Kb6 Rb1+ 48. Ka6 Kd7 49. a5 g5 50. Re2 gxf4 51. gxf4 Rb4 52. Rf2 Kc6 53. Rf3 Rb1 54. Rh3 Rb8 55. Rc3+ Kd5 56. Ka7 Rb2 57. Rh3 Rb4 58. Rf3 Ke4 59. Rh3 Kd5 60. Rxh6 Rxf4 61. h4 e5 62. a6 Rb4 63. h5 e4 64. Rb6 Rc4 65. h6 e3 66. h7 Rh4 67. Rb5+ Kd4 68. Rb4+ Kd3 69. Rxh4 e2 1-0

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.02"]
[Round "2"]
[White "Kast, Joannis"]
[Black "Katz, Leo"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "1841"]
[BlackElo "1727"]
[PlyCount "52"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 c5 5. e5 Nfd7 6. c3 Nc6 7. Ngf3 Be7 8. 0-0 a5 9. a3 h5 10. Qe2 cxd4 11. cxd4 g5 12. Bb5 g4 13. Bxc6 bxc6 14. Ne1 Ba6 15. Nd3 c5 16. Qe3 Rc8 17. Re1 cxd4 18. Qxd4 Nc5 19. Nxc5 Bxc5 20. Qa4+ Kf8 21. Qf4 a4 22. Qxa4 Bxf2+ 23. Kxf2 Qh4+ 24. g3 Qxh2+ 25. Ke3 Qxg3+ 26. Kd4 Qd3# 0-1

[Event "Baden-ch U16"]
[Site "Karlsruhe Durlach"]
[Date "2012.01.02"]
[Round "1"]
[White "Markic, Antonio"]
[Black "Katz, Leo"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1346"]
[BlackElo "1727"]
[PlyCount "80"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Ne2 Nge7 7. Bf4 Bg4 8. f3 Bh5 9. 0-0 Qd7 10. Bxd6 Qxd6 11. Ng3 Bg6 12. Re1 0-0 13. Qc2 Rae8 14. Bxg6 hxg6 15. Nd2 Qf4 16. Qd3 Nd8 17. Qe3 Qf6 18. Qe5 Ne6 19. Qxf6 gxf6 20. Ne2 Nf5 21. g3 Kg7 22. Kf2 Rh8 23. Rh1 Rh3 24. f4 Rhh8 25. Nf1 Nd6 26. b3 Ne4+ 27. Kg2 Rh5 28. Rc1 Rd8 29. Ne3 c6 30. Rhd1 Nc7 31. c4 Rhh8 32. c5 Rhe8 33. Kf3 Re7 34. Nc3 Rde8 35. Nxe4 Rxe4 36. Rd3 Nb5 37. Rcd1 Nxd4+ 38. Kf2 Ne6 39. Rc1 Nc7 40. a4 Na6 0-1

[Event "Verbandsliga Sued Baden 1112"]
[Site "Germany"]
[Date "2011.11.06"]
[Round "2.8"]
[White "Schell, Felix"]
[Black "Katz, Leo"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1817"]
[PlyCount "92"]
[EventDate "2011.10.09"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Horben"]
[BlackTeam "Baden-Baden IV"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Nf3 Nge7 7. Nbd2 Bg4 8. Qb3 Rb8 9. 0-0 0-0 10. Qc2 Ng6 11. b3 Qd7 12. h3 Be6 13. Ng5 Nce7 14. Nxe6 fxe6 15. Nf3 Rxf3 16. gxf3 e5 17. f4 e4 18. Be2 Qxh3 19. f3 Qg3+ 20. Kh1 Nh4 21. Bd1 exf3 22. Rg1 Ng2 23. Rxg2 fxg2+ 24. Qxg2 Bxf4 25. Qxg3 Bxg3 26. Bg5 Ng6 27. Bf3 c6 28. Kg2 Bh4 29. Bd2 Re8 30. c4 dxc4 31. bxc4 Bf6 32. Rb1 Nh4+ 33. Kg3 Nxf3 34. Kxf3 b6 35. d5 cxd5 36. cxd5 Rd8 37. Ke4 Kf7 38. Rc1 Rd7 39. Bf4 Ke7 40. d6+ Ke6 41. Rc7 Rxc7 42. dxc7 Kd7 43. Kd5 a6 44. Ke4 Bc3 45. Kd3 Ba5 46. Be5 g6 0-1

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "4"]
[White "Bluebaum, Matthias"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2051"]
[BlackElo "1361"]
[PlyCount "99"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 b6 7. Bb5+ Bd7 8. Nxd5 Bxb5 9. Qxb5+ Nfd7 10. Nf3 e6 11. Nc3 a6 12. Qb3 Bd6 13. 0-0 0-0 14. Bd2 Nc6 15. Rac1 Qb8 16. Ne4 Ne7 17. Nxd6 Qxd6 18. Bb4 Qd5 19. Bxe7 Qxb3 20. axb3 Rfe8 21. Bb4 a5 22. Bd2 Rac8 23. Rxc8 Rxc8 24. Rc1 Rxc1+ 25. Bxc1 Nf6 26. Ne5 Nd5 27. Bd2 Kf8 28. e4 Nc7 29. Nd7+ Ke7 30. Nxb6 Kd6 31. Nc4+ Kc6 32. Bxa5 Kb5 33. f3 Na6 34. Bc3 Nb4 35. Bxb4 Kxb4 36. Nd2 e5 37. d5 Kc5 38. Kf2 Kd4 39. b4 Kd3 40. b5 Kxd2 41. b6 Kc2 42. b7 Kxb2 43. b8Q+ Kc3 44. Qxe5+ Kc4 45. d6 Kd3 46. d7 Kd2 47. d8Q+ Kc1 48. Qc5+ Kb2 49. Qb8+ Ka2 50. Qa5# 1-0

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "6"]
[White "Janke, Hendrik"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1559"]
[BlackElo "1361"]
[PlyCount "151"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. Be3 Bb6 7. Qd2 Be6 8. Bb3 0-0 9. Bg5 h6 10. Bh4 Qe7 11. 0-0 Bg4 12. Nd5 Qd8 13. Nxf6+ gxf6 14. Ne1 Kg7 15. h3 Bh5 16. Kh1 Bg6 17. Nf3 Qd7 18. Rad1 Nd4 19. Nxd4 Bxd4 20. c3 Bb6 21. Bg3 Qe7 22. Bd5 c6 23. Bb3 Rac8 24. f4 Rfd8 25. fxe5 dxe5 26. Qe2 Rd6 27. Bh4 Rcd8 28. Rf3 c5 29. Rdf1 Rc6 30. Bxf6+ Rxf6 31. Rxf6 Qxf6 32. Rxf6 Kxf6 33. Qf3+ Kg7 34. Qg4 Rxd3 35. h4 Rd2 36. h5 Rxb2 37. hxg6 fxg6 38. Qd7+ Kf6 39. Qxb7 Rb1+ 40. Kh2 c4 41. Qc6+ Kg5 42. Bxc4 Bg1+ 43. Kh3 Rc1 44. Bf7 Re1 45. Qxg6+ Kf4 46. Qf5+ Ke3 47. Qf3+ Kd2 48. g3 Be3 49. Qf6 Kxc3 50. Qxe5+ Bd4 51. Qa5+ Kd3 52. Qxe1 a6 53. Qd1+ Kxe4 54. Bg6+ Kd5 55. Kg4 Kc4 56. Bf7+ Kc5 57. Qc2+ Kd6 58. Qd3 Ke5 59. Bg6 Kd5 60. Kf4 Kc5 61. Qa3+ Kb5 62. Be8+ Kb6 63. Qd6+ Kb7 64. Qxd4 Kc8 65. Qa7 h5 66. Qxa6+ Kd8 67. Qc6 Ke7 68. a4 h4 69. a5 hxg3 70. a6 g2 71. Qxg2 Kf8 72. a7 Ke7 73. a8Q Kd6 74. Qac6+ Ke7 75. Qg7+ Kd8 76. Qgd7# 1-0

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "2"]
[White "Katz, Leo"]
[Black "Fistoul, Boris"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1361"]
[BlackElo "1557"]
[PlyCount "47"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 b6 3. Nf3 Bb7 4. Bd3 Nf6 5. e5 Nd5 6. c4 Nb4 7. Be2 N4c6 8. Nc3 Bb4 9. a3 Bxc3+ 10. bxc3 Ne7 11. Bd3 0-0 12. Bxh7+ Kh8 13. Bd3 c5 14. Ng5 Ng8 15. Qh5+ Nh6 16. 0-0 cxd4 17. cxd4 d6 18. Ne4 dxe5 19. Bxh6 g6 20. Qh3 Kg8 21. Bxf8 Qxf8 22. Nf6+ Kg7 23. dxe5 Nd7 24. Qh7# 1-0

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "5"]
[White "Katz, Leo"]
[Black "Knopf, Felix"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1361"]
[BlackElo "1529"]
[PlyCount "118"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 Be7 8. Qd2 b5 9. 0-0-0 Bb7 10. Kb1 Nbd7 11. g4 Ne5 12. Qf2 Rc8 13. h4 b4 14. Nce2 Qa5 15. Nc1 Nc4 16. Bxc4 Rxc4 17. Qe2 d5 18. e5 Nd7 19. f4 Nc5 20. Ncb3 Nxb3 21. axb3 Rc7 22. f5 Bc8 23. fxe6 Bxe6 24. Nxe6 fxe6 25. h5 0-0 26. Rdg1 Rfc8 27. Rg2 Rc6 28. g5 Qc7 29. g6 h6 30. Bd4 a5 31. Qf2 Rf8 32. Qd2 Bg5 33. Qe2 Rf4 34. Qd3 Re4 35. Re2 Rxe2 36. Qxe2 Qc8 37. Rh2 Qb7 38. Be3 Bxe3 39. Qxe3 Qb5 40. Qf4 Rc7 41. Rf2 Qe8 42. Qd4 Qb8 43. Qd3 Qb6 44. Rf1 Qb8 45. Qf3 Re7 46. Qf2 Qe8 47. Qf3 Qd8 48. Qf4 d4 49. Rd1 Rd7 50. Qe4 Qf8 51. Qc6 Rd8 52. Qxe6+ Kh8 53. Qg4 Qe8 54. Rxd4 Rd5 55. Qf4 Rxd4 56. Qxd4 Qf8 57. Qd5 Qd8 58. Ka2 Qxd5 59. e6 Qxe6 0-1

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "7"]
[White "Katz, Leo"]
[Black "Stolcz, Bianca"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "1361"]
[BlackElo "1357"]
[PlyCount "62"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f3 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 a6 10. Nc1 b5 11. a3 0-0 12. N1e2 Bc4 13. 0-0-0 a5 14. Ng3 Bxf1 15. Rhxf1 b4 16. Nce2 bxa3 17. bxa3 d5 18. Nf5 Bxa3+ 19. Kb1 Rb8+ 20. Ka2 Bb4 21. Qc1 d4 22. Bh6 Ne8 23. Bg5 f6 24. Bh4 Bc5 25. g4 Nb4+ 26. Ka1 d3 27. cxd3 Nxd3 28. Qd2 Rb3 29. Qc2 Ra3+ 30. Kb1 Qb6+ 31. Qb2 Qxb2# 0-1

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "1"]
[White "Moritz, Aron"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1983"]
[BlackElo "1361"]
[PlyCount "65"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[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 Bd7 9. 0-0-0 Nxd4 10. Bxd4 0-0 11. g4 Qa5 12. Kb1 b5 13. Nd5 Nxd5 14. Qxa5 Bxd4 15. Rxd4 Nb6 16. Bxb5 Bxb5 17. Qxb5 Rfb8 18. Qd3 a5 19. h4 a4 20. h5 a3 21. b3 Na4 22. hxg6 hxg6 23. Qe3 f6 24. Qh6 Nc3+ 25. Ka1 Kf7 26. Qh7+ Ke6 27. Qxg6 Kd7 28. Rh7 Rc8 29. Qxf6 Nxa2 30. Qxe7+ Kc6 31. Qxd6+ Kb5 32. Rb7+ Ka5 33. Ra4# 1-0

[Event "GER-ch Net qual4 U14"]
[Site "Playchess.com INT"]
[Date "2009.06.17"]
[Round "3"]
[White "Schmitt, Katrin"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1658"]
[BlackElo "1361"]
[PlyCount "258"]
[EventDate "2009.06.17"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 0-0 8. 0-0 d6 9. Nxc6 Nxc6 10. Bxc5 dxc5 11. Nd2 Re8 12. Bd5 Ne7 13. Bb3 Qb6 14. Nc4 Qc6 15. f3 Be6 16. Na5 Bxb3 17. Nxb3 Ng6 18. Qe2 Qb6 19. Qf2 Rad8 20. Qxc5 Rd3 21. Qxb6 axb6 22. Rad1 Red8 23. Rxd3 Rxd3 24. Kf2 Nf4 25. g3 Ne6 26. Ke2 Rd8 27. Rd1 Ra8 28. a3 Kf8 29. Nd4 Ke7 30. Nxe6 Kxe6 31. Ke3 Ra5 32. Rd2 Rh5 33. f4 Ra5 34. Rd8 Ke7 35. Rb8 Ra7 36. Rh8 h6 37. Rh7 Kf6 38. Rh8 Ra6 39. Rc8 c6 40. Rc7 Ra7 41. e5+ Ke6 42. g4 g6 43. c4 f6 44. exf6 Kxf6 45. Ke4 Ra4 46. Kd3 Ra7 47. h4 g5 48. hxg5+ hxg5 49. fxg5+ Kxg5 50. Rg7+ Kf6 51. Rg8 Kf7 52. Rg5 Kf6 53. Rf5+ Kg6 54. Re5 Kf6 55. Rf5+ Kg6 56. Rf4 Kg5 57. Rd4 Ra8 58. Ke3 Re8+ 59. Kf3 Rf8+ 60. Kg3 Re8 61. Rd3 Re2 62. b4 Re4 63. c5 bxc5 64. bxc5 Rc4 65. Rb3 Rxc5 66. Rxb7 Rc3+ 67. Kf2 Rxa3 68. Rc7 Rc3 69. Ke2 Kxg4 70. Kd2 Rc5 71. Kd3 Kf5 72. Kd4 Rc1 73. Kd3 Ke5 74. Kd2 Rc5 75. Kd3 Kd6 76. Rc8 Kd5 77. Rh8 Rc1 78. Rh5+ Kd6 79. Kd2 Rc5 80. Rh6+ Kd5 81. Kd3 Rc1 82. Rh5+ Kd6 83. Rh8 Rg1 84. Rh6+ Kc7 85. Kc4 Kb6 86. Rh2 Rc1+ 87. Kb3 Kb5 88. Rh5+ c5 89. Rh8 Rb1+ 90. Kc2 Rg1 91. Rb8+ Kc6 92. Rh8 Kd5 93. Rh5+ Kc6 94. Rh6+ Kb5 95. Kc3 Rg3+ 96. Kc2 Kb4 97. Rh4+ Kb5 98. Rh5 Kc4 99. Rh4+ Kb5 100. Re4 Kc6 101. Rh4 Rg5 102. Kd3 Kd5 103. Kc3 Rg3+ 104. Kc2 c4 105. Rh5+ Kd4 106. Rh4+ Kc5 107. Rh5+ Kb4 108. Rh8 Rg2+ 109. Kd1 Kc3 110. Rh3+ Kb2 111. Rh8 c3 112. Rb8+ Ka3 113. Ra8+ Kb4 114. Rb8+ Kc4 115. Rc8+ Kd3 116. Rd8+ Ke3 117. Rf8 Rg1+ 118. Kc2 Ke2 119. Kxc3 Rf1 120. Re8+ Kf2 121. Kd2 Kg1 122. Rg8+ Kh1 123. Ke2 Rg1 124. Rf8 Rg2+ 125. Kf3 Ra2 126. Rh8+ Kg1 127. Rb8 Ra3+ 128. Kg4 Ra4+ 129. Kf3 Ra3+ 1/2-1/2

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "6"]
[White "Hapke, Moritz"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1358"]
[BlackElo "1361"]
[PlyCount "45"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. Bg5 Be6 7. Nd5 h6 8. Bxf6 gxf6 9. 0-0 Qd7 10. Nxf6+ Ke7 11. Nxd7 Kxd7 12. Bxe6+ fxe6 13. c3 h5 14. d4 exd4 15. cxd4 Bb6 16. d5 e5 17. dxc6+ bxc6 18. Nxe5+ Ke6 19. Nxc6 Rag8 20. Qd5+ Kf6 21. Qf5+ Kg7 22. Ne7 Rf8 23. Qg6# 1-0

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "3"]
[White "Katz, Leo"]
[Black "Baier, Felix"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1361"]
[BlackElo "1523"]
[PlyCount "92"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Be2 Nf6 5. Nf3 Bf5 6. d4 e6 7. Bf4 c6 8. Qd2 Bb4 9. 0-0 Bxc3 10. bxc3 Nbd7 11. Bd3 Bg6 12. Rfb1 b6 13. Ne5 Rc8 14. Nxg6 hxg6 15. a4 0-0 16. Re1 Nd5 17. c4 Qxd2 18. Bxd2 N5f6 19. Re3 Rcd8 20. c3 Nb8 21. Rh3 Rd7 22. Re1 Rfd8 23. Bg5 c5 24. Bxf6 gxf6 25. Re4 cxd4 26. Reh4 f5 27. Rh8+ Kg7 28. R8h7+ Kf6 29. Bf1 dxc3 30. Rxc3 Nc6 31. c5 bxc5 32. Rxc5 Ne5 33. f4 Nd3 34. Ra5 Nxf4 35. Kf2 Rd5 36. Rxa7 R8d7 37. Ra8 Rd2+ 38. Kf3 Nh5 39. a5 Rc7 40. Be2 Rc3+ 41. Kf2 Re3 42. a6 Rdxe2+ 43. Kf1 Re1+ 44. Kf2 R3e2+ 45. Kf3 Re4 46. a7 Rf1# 0-1

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "7"]
[White "Katz, Leo"]
[Black "Diederichs, Luise"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1361"]
[BlackElo "1157"]
[PlyCount "43"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 cxd4 6. cxd4 Qb6 7. Nc3 Bb4 8. Bd3 Nge7 9. 0-0 Bd7 10. a3 Nxd4 11. axb4 Qxb4 12. Nxd4 Qxd4 13. Qe2 Qb6 14. Kh1 0-0 15. f4 Bc6 16. Qh5 g6 17. Qg5 Nf5 18. Bxf5 exf5 19. Rb1 Bb5 20. Rf3 Bc4 21. Rh3 h5 22. Rxh5 1-0

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "1"]
[White "Katz, Leo"]
[Black "Donchenko, Alexander"]
[Result "0-1"]
[ECO "B05"]
[WhiteElo "1361"]
[BlackElo "1984"]
[PlyCount "108"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 Bxf3 6. Qxf3 dxe5 7. dxe5 e6 8. Bb5+ c6 9. Bd3 Nd7 10. Bd2 Nxe5 11. Qe2 Nxd3+ 12. Qxd3 Be7 13. Nc3 Nxc3 14. Qxc3 Bf6 15. Qb3 Qb6 16. Qxb6 axb6 17. c3 Ke7 18. Ke2 Rhd8 19. a3 Ra5 20. Be3 Re5 21. Rad1 b5 22. Kf3 Red5 23. Rxd5 Rxd5 24. Ke2 Kd6 25. Bf4+ Kc5 26. Be3+ Kc4 27. Bc1 Bg5 28. Rd1 Rxd1 29. Kxd1 Bxc1 30. Kxc1 Kd3 31. Kd1 c5 32. g3 e5 33. h4 f5 34. h5 g6 35. hxg6 hxg6 36. f3 g5 37. g4 f4 38. Kc1 Ke2 39. Kc2 Kxf3 40. Kd3 e4+ 41. Kd2 Kxg4 42. c4 bxc4 43. Kc3 f3 44. Kxc4 f2 45. Kxc5 f1Q 46. b4 Qa6 47. Kd4 Qxa3 48. Kc5 b6+ 49. Kc4 e3 50. b5 e2 51. Kd5 Qc5+ 52. Ke4 Qxb5 53. Ke3 e1Q+ 54. Kd4 Qee5# 0-1

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "5"]
[White "Katz, Leo"]
[Black "Ishorst, Martin"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1361"]
[BlackElo "1203"]
[PlyCount "97"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 d5 2. e5 Nc6 3. d4 Bf5 4. h4 Qd7 5. c3 0-0-0 6. Bd3 Bxd3 7. Qxd3 f6 8. exf6 Nxf6 9. Nf3 e6 10. Bf4 Bd6 11. Bxd6 cxd6 12. Nbd2 e5 13. dxe5 dxe5 14. Qc2 e4 15. Ng5 h6 16. Nh3 d4 17. 0-0-0 d3 18. Qb3 Nd4 19. Qc4+ Kb8 20. Qxd4 Qxd4 21. cxd4 Rc8+ 22. Kb1 Rc2 23. Rhe1 Nd5 24. Nxe4 Nb4 25. a3 Re2 26. axb4 Re8 27. f3 Rc8 28. Rxe2 dxe2 29. Re1 Rc4 30. Rxe2 Rxd4 31. b5 Rd1+ 32. Ka2 a5 33. Rd2 Rxd2 34. Nxd2 a4 35. Ka3 b6 36. Kxa4 Ka7 37. Kb4 Kb7 38. Nc4 Kc7 39. Nf4 Kb7 40. Nd5 Kb8 41. Ndxb6 Ka7 42. Nd5 Kb7 43. b6 Kb8 44. Nd6 Ka8 45. b7+ Kb8 46. Nb6 Ka7 47. Nd7 Ka6 48. b8N+ Ka7 49. Kc5 1-0

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "4"]
[White "Mainik, Philipp"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "1539"]
[BlackElo "1361"]
[PlyCount "125"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. Nc3 Ne7 7. d4 exd4 8. Nxd4 c5 9. Nf3 Qxd1 10. Rxd1 Nc6 11. Be3 Bg4 12. h3 Bh5 13. Nd5 0-0-0 14. Bf4 Bd6 15. Bxd6 Rxd6 16. Nf4 Bxf3 17. gxf3 Ne5 18. Rxd6 cxd6 19. Kg2 Kd7 20. Rd1 Re8 21. Nd5 Kc6 22. b3 b5 23. Ne3 Ng6 24. Nf5 Nf4+ 25. Kg3 Ne2+ 26. Kh2 g6 27. Nxd6 Rd8 28. Rd2 Rxd6 29. Rxe2 Re6 30. Kg3 f5 31. Kf4 b4 32. Rd2 fxe4 33. fxe4 Kb5 34. e5 c4 35. Rd6 cxb3 36. cxb3 Re8 37. e6 Rf8+ 38. Kg5 Kc5 39. Rxa6 Rxf2 40. e7 Re2 41. Kf6 Kb5 42. Ra8 Rf2+ 43. Kg7 Kc6 44. e8Q+ Kc5 45. Rc8+ Kd4 46. Rd8+ Kc3 47. Qc6+ Kb2 48. Qc4 Kxa2 49. Qxb4 Kb2 50. Rd2+ Rxd2 51. Qxd2+ Kxb3 52. Qc1 h5 53. Kxg6 h4 54. Kg5 Kb4 55. Qc2 Kb5 56. Qc3 Kb6 57. Qc4 Ka5 58. Qb3 Ka6 59. Kf5 Ka5 60. Ke5 Ka6 61. Kd5 Ka5 62. Kc6 Ka6 63. Qb6# 1-0

[Event "GER-ch Net qual1 U14"]
[Site "Playchess.com INT"]
[Date "2009.05.10"]
[Round "2"]
[White "Muth, Matthias Potisarath"]
[Black "Katz, Leo"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1567"]
[BlackElo "1361"]
[PlyCount "169"]
[EventDate "2009.05.10"]
[EventType "swiss (blitz)"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 d6 4. Nc3 Nc6 5. d3 Be7 6. Nf3 h6 7. 0-0 Be6 8. Bd2 0-0 9. Qc1 Qd7 10. Re1 a6 11. a3 Bh3 12. Bh1 Rab8 13. Rb1 Be6 14. b4 Nd8 15. Nh4 c6 16. Ne4 Nxe4 17. Bxe4 f5 18. Bg2 Nf7 19. Nf3 Kh7 20. e4 fxe4 21. Rxe4 Nh8 22. Re1 Rf7 23. d4 exd4 24. Nxd4 Bh3 25. Qc2+ Kg8 26. Bh1 Rbf8 27. Be3 Bg4 28. b5 axb5 29. cxb5 c5 30. Nb3 Bf5 31. Be4 Bxe4 32. Qxe4 b6 33. Qc6 Qxc6 34. bxc6 Bd8 35. Nd2 Bc7 36. Nc4 b5 37. Nd2 Rb8 38. Bf4 Rb6 39. Ne4 Rxc6 40. Rxb5 Rf5 41. Reb1 Ng6 42. Be3 Re5 43. Nc3 Kh7 44. Na4 c4 45. Rb7 c3 46. Ra7 c2 47. Rc1 Rd5 48. Nb2 Bd8 49. Kf1 Bf6 50. Rb7 Bxb2 51. Rxb2 Rd1+ 52. Ke2 Rxc1 53. Bxc1 Ne5 54. f4 Ng4 55. h3 Nf6 56. Kd3 Ra6 57. Rxc2 Kg6 58. g4 h5 59. g5 Nd5 60. Kd4 Ne7 61. Ke4 Ra4+ 62. Kf3 Kf5 63. Rc7 Nd5 64. Rxg7 Nxf4 65. Bxf4 Rxf4+ 66. Kg3 Re4 67. Rd7 h4+ 68. Kg2 Re6 69. Rh7 Kxg5 70. Rg7+ Kf5 71. Rg4 Re4 72. a4 Rxg4+ 73. hxg4+ Kxg4 74. a5 h3+ 75. Kh2 d5 76. a6 d4 77. a7 d3 78. a8Q d2 79. Qd8 Kf3 80. Qxd2 Kg4 81. Qd4+ Kf3 82. Kxh3 Ke2 83. Qc3 Kf1 84. Qc2 Kg1 85. Qg2# 1-0

[Event "Baden-ch U14"]
[Site "Schoeneck"]
[Date "2009.01.04"]
[Round "5"]
[White "Katz, Leo"]
[Black "Abdelrazeh, Ahmed"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1339"]
[BlackElo "1691"]
[PlyCount "86"]
[EventDate "2009.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. c3 Nf6 6. Nf3 0-0 7. 0-0 Bg4 8. h3 Bh5 9. Bg5 h6 10. Bh4 g5 11. Bg3 Ne4 12. Bh2 f5 13. Bxd6 Qxd6 14. Qe2 Nd7 15. Nbd2 Rae8 16. Qd1 Kh8 17. Qc2 Rg8 18. Nh2 Qf4 19. Nxe4 dxe4 20. Bc4 Rg7 21. g3 Qd6 22. Be2 g4 23. hxg4 Bxg4 24. Nxg4 fxg4 25. Kg2 h5 26. Rh1 Qh6 27. Rhd1 Nf6 28. Qc1 e3 29. Bd3 Qg5 30. Re1 Qd5+ 31. Kh2 Qf3 32. Qc2 Rge7 33. Re2 h4 34. gxh4 Qh3+ 35. Kg1 Nd5 36. fxe3 Nxe3 37. Qd2 Qg3+ 38. Kh1 Qf3+ 39. Kg1 g3 40. Rae1 g2 41. Rf2 Qh3 42. Rf4 Qh1+ 43. Kf2 Qh2 0-1

[Event "Baden-ch U14"]
[Site "Schoeneck"]
[Date "2009.01.04"]
[Round "6"]
[White "Katz, Leo"]
[Black "Weber, Clemens"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1339"]
[BlackElo "1440"]
[PlyCount "99"]
[EventDate "2009.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 8. f4 Be6 9. Bd3 Qe7 10. fxe5 dxe5 11. Rf2 h6 12. Bxf6 gxf6 13. Qf1 Rg8 14. Rxf6 Bh3 15. Rf2 0-0-0 16. Kh1 Be6 17. Nc3 Rg7 18. Rd1 Rdg8 19. Rdd2 Qg5 20. Rd1 Bh3 21. gxh3 Qh4 22. Ne2 Nxe2 23. Qxe2 Qxh3 24. Qf3 Qh4 25. Qf5+ Kb8 26. Rfd2 f6 27. Qf2 Qg5 28. Bc4 Rc8 29. Qf5 Qxf5 30. exf5 a6 31. Be6 Re8 32. Rd8+ Rxd8 33. Rxd8+ Ka7 34. Rd7 Rxd7 35. Bxd7 Kb6 36. Kg2 Kc5 37. Kf3 Kd4 38. Bc8 b6 39. Bxa6 c5 40. Ke2 Ke4 41. Bc8 Kf4 42. Kf2 Ke4 43. a3 Kd4 44. Bd7 Kc4 45. Ke3 Kd5 46. Be6+ Kc6 47. Ke4 Kd6 48. Bc4 Kc6 49. a4 Kd6 50. Bb5 0-1

[Event "Baden-ch U14"]
[Site "Schoeneck"]
[Date "2009.01.03"]
[Round "3"]
[White "Dehm, Tobias"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "1423"]
[BlackElo "1339"]
[PlyCount "32"]
[EventDate "2009.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d5 9. exd5 Nxd5 10. 0-0 0-0 11. Re1 Nb6 12. Re4 Nxc4 13. Nxc4 Qd5 14. Ncd2 Bf5 15. Rh4 Bg6 16. Nb3 Rfe8 1/2-1/2

[Event "Baden-ch U14"]
[Site "Schoeneck"]
[Date "2009.01.03"]
[Round "4"]
[White "Hirschberg, Leander"]
[Black "Katz, Leo"]
[Result "1/2-1/2"]
[ECO "C56"]
[WhiteElo "1555"]
[BlackElo "1339"]
[PlyCount "81"]
[EventDate "2009.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 Bc5 6. c3 d6 7. cxd4 Bb6 8. Nc3 0-0 9. Bg5 h6 10. Bf4 Bg4 11. d5 Nd4 12. Be2 Nxe2+ 13. Qxe2 Re8 14. Qd3 Qe7 15. Nd2 Nd7 16. Qg3 Bh5 17. Bxh6 Bg6 18. Be3 Ba5 19. f3 Qf6 20. Qf4 Bxc3 21. bxc3 Qxc3 22. Rfc1 Qa5 23. Nb3 Qa3 24. Rxc7 Ne5 25. Bd4 Qb4 26. Bxe5 dxe5 27. Qd2 Qb6+ 28. Rc5 Rac8 29. Qf2 Rxc5 30. Qxc5 Qxc5+ 31. Nxc5 b6 32. Nd3 f6 33. Rc1 Re7 34. g4 Kf7 35. Kf2 Ke8 36. Nb4 Rd7 37. Ke3 Bf7 38. Rc3 Ke7 39. Nc6+ Kd6 40. Kd3 Rc7 41. Nb4 1/2-1/2

[Event "Baden-ch U14"]
[Site "Schoeneck"]
[Date "2009.01.03"]
[Round "2"]
[White "Katz, Leo"]
[Black "Kuch, Janis"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1339"]
[BlackElo "1263"]
[PlyCount "95"]
[EventDate "2009.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 d6 5. d3 Bg4 6. Be3 Nd4 7. Nbd2 h5 8. c3 Nxf3+ 9. Nxf3 Bxe3 10. fxe3 h4 11. Bxf7+ Kd7 12. Nxe5+ dxe5 13. Qxg4+ Kc6 14. Bd5+ Kb6 15. Qxg7 Ne7 16. Qxe5 Nxd5 17. Qxd5 Qxd5 18. exd5 Rag8 19. h3 Rg5 20. c4 Rhg8 21. Rf2 Rg3 22. Re1 Rxh3 23. Ree2 Rhg3 24. Kh2 c6 25. dxc6 Kxc6 26. Rf3 Kd6 27. Rxg3 Rxg3 28. Kg1 h3 29. Kh2 hxg2 30. Rxg2 Rxe3 31. Rd2 Kc5 32. d4+ Kxc4 33. d5 Re8 34. d6 Kc5 35. d7 Rd8 36. Kg3 Kc6 37. Kf4 Rxd7 38. Rxd7 Kxd7 39. Ke4 Kc6 40. Kd4 Kb5 41. a3 Ka4 42. Kc4 b6 43. Kc3 Kb5 44. Kb3 a5 45. a4+ Kc5 46. Kc3 b5 47. axb5 Kxb5 48. Kb3 1/2-1/2

[Event "Baden-ch U14"]
[Site "Schoeneck"]
[Date "2009.01.02"]
[Round "1"]
[White "Jehnichen, Jan"]
[Black "Katz, Leo"]
[Result "0-1"]
[ECO "C45"]
[BlackElo "1339"]
[PlyCount "114"]
[EventDate "2009.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 Qh4 7. Qe2 a6 8. a5 Ba7 9. Nc3 d6 10. h3 Be6 11. Nd5 Qd8 12. Be3 Bxe3 13. Qxe3 Nge7 14. Nd4 Nxd4 15. Qxd4 0-0 16. Nf4 Nc6 17. Qc3 Bd7 18. Nh5 Qg5 19. Ng3 Qe5 20. Qxe5 Nxe5 21. Be2 Bc6 22. 0-0 Rfe8 23. f4 Ng6 24. Bd3 Rad8 25. Rae1 d5 26. f5 Nf8 27. Re2 dxe4 28. Bxe4 Bb5 29. Bd3 Rxe2 30. Bxe2 Bxe2 31. Nxe2 Rd2 32. Ng3 Rxc2 33. Rf2 Rc5 34. b4 Rc4 35. Rb2 c6 36. Nh5 f6 37. g4 Kf7 38. Kf2 Nd7 39. Ke2 Ne5 40. Kd2 Rd4+ 41. Kc2 g6 42. fxg6+ hxg6 43. Ng3 Rd3 44. Rb3 Rd4 45. Nf1 Rf4 46. Ne3 Rf2+ 47. Kc3 Rf3 48. Kd4 Rxh3 49. Kc5 Nxg4 50. Kb6 Rxe3 51. Rxe3 Nxe3 52. Kxb7 Ke7 53. Kxc6 Kd8 54. b5 Kc8 55. Kb6 axb5 56. a6 Kb8 57. Kxb5 f5 0-1

