[Event "HUN-chT 2122"]
[Site "Hungary"]
[Date "2021.12.05"]
[Round "3.12"]
[White "Balint, Vilmos"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2292"]
[BlackElo "1948"]
[PlyCount "61"]
[EventDate "2021.10.10"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Dunaharaszti"]
[BlackTeam "Morihana"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. g3 Nf6 2. Bg2 g6 3. e4 e5 4. d4 d6 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5 Be7 8. Nc3 c6 9. 0-0-0+ Ke8 10. h3 Be6 11. Bh6 Nbd7 12. f4 Bf8 13. Bxf8 Rxf8 14. Nf3 Nh5 15. Ne2 Bc4 16. Rxd7 Bxe2 17. Rxb7 Nxg3 18. Re1 Ba6 19. Rc7 Ne2+ 20. Kb1 Nxf4 21. Nxe5 Nxg2 22. Nxc6 Rh8 23. Rd1 h5 24. Rxa7 Rc8 25. Rxa6 Nf4 26. h4 Ng2 27. Ra7 Nxh4 28. Rc7 Ra8 29. Rcd7 Kf8 30. Nd8 Rh7 31. Ne6+ 1-0

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2021.10.27"]
[Round "7.20"]
[White "Demjen, Mark"]
[Black "Onodi, Tamas"]
[Result "1/2-1/2"]
[ECO "B29"]
[WhiteElo "1878"]
[BlackElo "1899"]
[PlyCount "70"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. g3 Nc6 5. Bg2 g6 6. 0-0 Bg7 7. Re1 0-0 8. d4 cxd4 9. Nxd4 Nb6 10. Nxc6 dxc6 11. Qe2 Be6 12. Nc3 Qd4 13. Bg5 Qb4 14. Ne4 Rfe8 15. c3 Qa5 16. Bf4 Nd5 17. Bd2 Nc7 18. f4 Rad8 19. c4 Qa6 20. b3 b5 21. Nc5 Qa3 22. Be3 bxc4 23. Nxe6 Nxe6 24. Bxc6 Rf8 25. Qxc4 Rc8 26. Qa4 Qb2 27. Rab1 Qc3 28. Rbc1 Qb2 29. Bd7 Rc3 30. Rxc3 Qxc3 31. Kf2 Nc5 32. Bxc5 Qxc5+ 33. Re3 Qc2+ 34. Re2 Qc5+ 35. Re3 Qc2+ 1/2-1/2

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2021.10.25"]
[Round "3.14"]
[White "Demjen, Mark"]
[Black "Geher, Koppany"]
[Result "0-1"]
[ECO "D27"]
[WhiteElo "1878"]
[BlackElo "2280"]
[PlyCount "54"]
[EventDate "2021.10.24"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 c5 6. 0-0 a6 7. dxc5 Bxc5 8. Qc2 Qe7 9. a3 0-0 10. b4 Bd6 11. Bb2 b5 12. Be2 Bb7 13. Nbd2 Rc8 14. Qb1 Nbd7 15. Rd1 e5 16. e4 Nb6 17. Bd3 Na4 18. Ne1 Bb8 19. Bc2 Nxb2 20. Qxb2 Ba7 21. Bd3 Ng4 22. Ndf3 Nxf2 23. Qxf2 Bxf2+ 24. Kxf2 f5 25. Nd2 fxe4 26. Nxe4 Bxe4 27. Bxe4 Qh4+ 0-1

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.12"]
[Round "9.3"]
[White "Demjen, Mark"]
[Black "Levitan, Caleb Levi"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2043"]
[BlackElo "1645"]
[PlyCount "70"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "IND"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. Qe1 e5 11. Nxc6 bxc6 12. Bc5 Re8 13. g4 Qa5 14. Ba3 d4 15. Nb1 Bh6+ 16. Nd2 Be6 17. Kb1 Rab8 18. Nb3 Qxe1 19. Rxe1 Bf8 20. Bxf8 Kxf8 21. Nc5 Ke7 22. Nxe6 fxe6 23. h4 h5 24. Bh3 c5 25. Rhg1 Kf7 26. b3 Rh8 27. g5 Nd7 28. Rgf1 Ke7 29. f4 exf4 30. Rxf4 Rhf8 31. Ref1 Rxf4 32. Rxf4 Rf8 33. Rxf8 Kxf8 34. Bxe6 Ne5 35. c3 Nf3 1/2-1/2

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.11"]
[Round "8.3"]
[White "Bokorovics, Bertalan"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2165"]
[BlackElo "2043"]
[PlyCount "63"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "IND"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. 0-0-0 Be7 13. Kb1 0-0 14. Ne4 Nxe4 15. Qxe4 Nf6 16. Qe2 Qd5 17. Be3 Rfd8 18. Ne5 c5 19. Rhe1 b5 20. g4 c4 21. g5 hxg5 22. Bxg5 c3 23. b3 Qb7 24. h6 Nh7 25. Bc1 g6 26. Nxf7 Kxf7 27. Qxe6+ Kf8 28. Qxg6 Bf6 29. Rg1 Qf7 30. Ba3+ Be7 31. Qxf7+ Kxf7 32. Rg7+ 1-0

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.07"]
[Round "5.4"]
[White "Demjen, Mark"]
[Black "Krithigga, K."]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2043"]
[BlackElo "1885"]
[PlyCount "66"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "IND"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 Qh4 7. Nf4 Bb4 8. a3 Bxc3+ 9. bxc3 Be4 10. Rg1 h6 11. Rg3 Qe7 12. a4 b6 13. a5 Qb7 14. Nh5 g5 15. a6 Qc7 16. f3 Bg6 17. f4 Bxh5 18. gxh5 gxf4 19. Rg7 Ne7 20. Bh3 c5 21. Ba3 cxd4 22. Bxe6 Qxc3+ 23. Kf1 fxe6 24. Bxe7 Qh3+ 25. Kg1 Qe3+ 26. Kf1 Qh3+ 27. Kg1 Qe3+ 28. Kg2 Qe4+ 29. Kh3 Nc6 30. Bf6 Nxe5 31. Bxe5 Qxe5 32. Qg4 Qe3+ 33. Kh4 Qf2+ 1/2-1/2

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.06"]
[Round "4.3"]
[White "Mrithyunjay, Mahadevan"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1778"]
[BlackElo "2043"]
[PlyCount "97"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "IND"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. Nf3 g6 3. d4 Bg7 4. Bd3 d6 5. Nbd2 e5 6. Nc4 Qc7 7. a4 Ne7 8. Be3 0-0 9. h3 f5 10. dxe5 dxe5 11. Bc5 Rd8 12. Bd6 Qd7 13. Bxe5 b5 14. axb5 cxb5 15. Nb6 axb6 16. Rxa8 Bxe5 17. Nxe5 Qc7 18. Rxb8 Kg7 19. Rxc8 Nxc8 20. exf5 Qxe5+ 21. Qe2 Qxe2+ 22. Kxe2 gxf5 23. Bxf5 Ne7 24. Bd3 b4 25. Be4 b3 26. c3 Kf6 27. Bxh7 Nd5 28. g3 Ra8 29. Be4 Ke5 30. Bxd5 Kxd5 31. h4 Ra2 32. Rd1+ Ke4 33. f3+ Ke5 34. Rd2 Ra1 35. Ke3 Rh1 36. f4+ Ke6 37. Kf3 Rf1+ 38. Kg4 Rc1 39. Kf3 Rf1+ 40. Rf2 Rh1 41. Kg4 Rc1 42. h5 Rc2 43. Kf3 Kf6 44. g4 b5 45. Ke3 Rc1 46. h6 Rh1 47. Kd4 Rc1 48. Rh2 Rc2 49. Rh1 1-0

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.05"]
[Round "3.3"]
[White "Demjen, Mark"]
[Black "Levitan, Judah Nathan"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2043"]
[BlackElo "1314"]
[PlyCount "45"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "IND"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 e6 5. 0-0 a6 6. d3 Be7 7. Nc3 0-0 8. Qb3 Nc6 9. Nh4 Bg4 10. cxd5 Nxd5 11. Nxd5 exd5 12. Qxb7 Nb4 13. Bf4 Bd6 14. Rfc1 Rb8 15. Qa7 Bxf4 16. gxf4 Qxh4 17. a3 Rb6 18. axb4 Rh6 19. e3 Bh3 20. Bxd5 Rg6+ 21. Kh1 Bf1 22. Qxc7 Qh5 23. Qxf7+ 1-0

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.04"]
[Round "2.3"]
[White "Levitan, Caleb Levi"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1645"]
[BlackElo "2043"]
[PlyCount "93"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "IND"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. Bf4 c5 3. e3 cxd4 4. exd4 d5 5. c3 Nc6 6. Nd2 Bf5 7. Qb3 Qc8 8. Ngf3 e6 9. Ne5 Be7 10. Nxc6 bxc6 11. Qa4 0-0 12. Ba6 Qd7 13. 0-0 Bd6 14. Bg3 Nh5 15. Bxd6 Qxd6 16. Nf3 Rab8 17. b4 f6 18. Nh4 Bg6 19. Nxg6 hxg6 20. Qc2 f5 21. Rae1 c5 22. b5 c4 23. a4 Kf7 24. g3 Nf6 25. Qc1 Ne4 26. Kg2 Rh8 27. Rh1 Nf6 28. f3 Ne8 29. Re5 Nc7 30. Qf4 Qb6 31. Rhe1 Rhe8 32. h4 Nxa6 33. bxa6 Qxa6 34. g4 Kg8 35. h5 gxh5 36. gxf5 Qd6 37. fxe6 Rxe6 38. Qh4 Rb2+ 39. Kh1 Rxe5 40. dxe5 Qg6 41. Rg1 Rb1 42. Rxb1 Qxb1+ 43. Kh2 Qc2+ 44. Kg3 Qxc3 45. Qxh5 Qe1+ 46. Kg2 Qd2+ 47. Kf1 1/2-1/2

[Event "Budapes FS07 Nadassy"]
[Site "Budapest"]
[Date "2021.07.03"]
[Round "1.3"]
[White "Demjen, Mark"]
[Black "Bokorovics, Bertalan"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2043"]
[BlackElo "2165"]
[PlyCount "62"]
[EventDate "2021.07.03"]
[EventType "schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "IND"]

1. e4 c5 2. Nf3 e6 3. c4 a6 4. Nc3 Qc7 5. Be2 d6 6. d4 cxd4 7. Nxd4 Nf6 8. 0-0 b6 9. Be3 Bb7 10. f3 Be7 11. Rc1 Nbd7 12. Qd2 0-0 13. Rfd1 Rac8 14. Bf1 Rfe8 15. Qf2 Qb8 16. a3 Bd8 17. b4 Bc7 18. g3 h5 19. Nb3 Ne5 20. Be2 Ba8 21. Na4 d5 22. cxd5 exd5 23. Bxb6 dxe4 24. Bxc7 Rxc7 25. Rxc7 Qxc7 26. Qc5 Qxc5+ 27. Naxc5 exf3 28. Bxa6 Nfg4 29. Nd3 Nxd3 30. h3 Re1+ 31. Rxe1 f2+ 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.16"]
[Round "10.3"]
[White "Toth, Lili"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "A42"]
[WhiteElo "1680"]
[BlackElo "2054"]
[PlyCount "76"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. Nf3 g6 2. c4 Bg7 3. d4 d6 4. Nc3 e5 5. e4 Nc6 6. Be3 Bg4 7. d5 Nd4 8. Be2 Nxe2 9. Qxe2 Ne7 10. h3 Bd7 11. Nd2 f5 12. Bg5 0-0 13. Bxe7 Qxe7 14. a3 Bh6 15. Nf3 Rf7 16. 0-0 Raf8 17. Nh2 f4 18. Qf3 Rg7 19. Kh1 g5 20. Ng4 Rg6 21. Qe2 f3 22. gxf3 Bg7 23. Kg2 h5 24. Nh2 Rf4 25. Rh1 g4 26. hxg4 hxg4 27. fxg4 Bxg4 28. Nxg4 Rfxg4+ 29. Kf1 Qg5 30. Qe1 Rg2 31. Rd1 Rf6 32. Rd2 Qg3 33. Nd1 Bh6 34. Rc2 Qf3 35. Rg1 Rxg1+ 36. Kxg1 Rg6+ 37. Kf1 Qh1+ 38. Ke2 Qxe4+ 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.15"]
[Round "9.3"]
[White "Demjen, Mark"]
[Black "Matyassy, Lazar"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2054"]
[BlackElo "2042"]
[PlyCount "57"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 0-0 8. h3 c5 9. Be3 Nc6 10. Be2 cxd4 11. cxd4 Qa5+ 12. Bd2 Qa3 13. d5 Nd4 14. Nxd4 Bxd4 15. Rb1 f5 16. 0-0 Qd6 17. Bb4 Qe5 18. Bxe7 Re8 19. d6 fxe4 20. Rb5 Qg7 21. Bc4+ Kh8 22. Rd5 Bb6 23. Bb5 Rg8 24. Qa1 Qxa1 25. Rxa1 Be6 26. Bf6+ Rg7 27. Re5 Bd4 28. Rxe6 Bxa1 29. Bxa1 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.14"]
[Round "8.3"]
[White "Toth, Nikoletta"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "A70"]
[WhiteElo "1937"]
[BlackElo "2054"]
[PlyCount "72"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 c5 6. d5 0-0 7. h3 e6 8. Bd3 exd5 9. cxd5 Re8 10. 0-0 c4 11. Bxc4 Nxe4 12. Nxe4 Rxe4 13. Qc2 Re8 14. Bd2 Bf5 15. Qb3 Nd7 16. Bc3 Bxc3 17. Qxc3 Rc8 18. Qb3 Re4 19. Rfc1 a5 20. Nd2 Nc5 21. Qa3 Re8 22. Bf1 Qg5 23. Nf3 Qf6 24. Rc3 Ne4 25. Rxc8 Rxc8 26. Bd3 Nc5 27. Bxf5 Qxf5 28. Qxa5 Qc2 29. Qb6 Nd3 30. Rf1 Qxb2 31. Qxd6 Rc1 32. Rxc1 Qxc1+ 33. Kh2 Nxf2 34. Qb8+ Kg7 35. Qe5+ Kg8 36. d6 Nd3 1/2-1/2

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.13"]
[Round "7.3"]
[White "Demjen, Mark"]
[Black "Krivenko, Dion"]
[Result "0-1"]
[ECO "B55"]
[WhiteElo "2054"]
[BlackElo "2005"]
[PlyCount "112"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be7 7. Nc3 Be6 8. Bg5 0-0 9. Qd2 a5 10. Bb5 h6 11. Be3 d5 12. exd5 Nxd5 13. Nxd5 Qxd5 14. Qxd5 Bxd5 15. 0-0-0 Be6 16. Kb1 Rc8 17. a4 Nc6 18. Nc5 Bxc5 19. Bxc5 Bf5 20. Bd3 Bxd3 21. Rxd3 Nb4 22. Bxb4 axb4 23. b3 b5 24. axb5 Ra5 25. Rhd1 Rxb5 26. Rd8+ Rxd8 27. Rxd8+ Kh7 28. Kc1 Kg6 29. Kd2 f5 30. Kd3 Kf6 31. Kc4 Rb7 32. Rd6+ Kg5 33. Rd5 Kf4 34. g3+ Kxf3 35. Rxe5 Kg2 36. Re2+ Kf3 37. Re5 Kg2 38. Re2+ Kf3 39. Rd2 g5 40. Rd6 f4 41. Rxh6 Kg2 42. gxf4 gxf4 43. c3 bxc3 44. Kxc3 Rf7 45. Rg6+ Kf1 46. b4 f3 47. b5 f2 48. Ra6 Ke2 49. Ra1 Rf4 50. h4 Rxh4 51. Ra2+ Kf3 52. Ra1 Kg2 53. b6 f1Q 54. Rxf1 Kxf1 55. b7 Rh8 56. Kc4 Rb8 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.12"]
[Round "6.3"]
[White "Tancsa, Tamas"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2063"]
[BlackElo "2054"]
[PlyCount "89"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 Bxd3 6. Qxd3 e6 7. Bg5 Qb6 8. Nd2 c5 9. c4 Qxb2 10. Rd1 Nc6 11. Ngf3 Nb4 12. Qe2 cxd4 13. 0-0 d3 14. Qe3 Qa3 15. Rb1 Nh6 16. Rb3 Qxa2 17. cxd5 Nxd5 18. Qxd3 Qa6 19. Qb1 Rc8 20. Ne4 Nf5 21. Rd1 b6 22. Nc3 Nxc3 23. Rxc3 Bc5 24. Qe4 0-0 25. Rcd3 Be7 26. Rd7 Bxg5 27. Nxg5 Qc4 28. Qb7 Qxh4 29. Qxc8 Qxg5 30. Qxf8+ Kxf8 31. Rd8+ Qxd8 32. Rxd8+ Ke7 33. Ra8 Kd7 34. Rxa7+ Kc6 35. Rxf7 Kd5 36. Rb7 Kc5 37. Kf1 b5 38. Ke2 b4 39. Kd3 h4 40. f4 g6 41. Rf7 Kd5 42. Rc7 b3 43. Rb7 Nd4 44. Rb4 Kc5 45. Rc4+ 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.10"]
[Round "5.3"]
[White "Demjen, Mark"]
[Black "Toth, Lili"]
[Result "1-0"]
[ECO "C92"]
[WhiteElo "2054"]
[BlackElo "1680"]
[PlyCount "101"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Re8 10. d4 Bb7 11. Nbd2 Bf8 12. Bc2 g6 13. d5 Nb8 14. b3 Nbd7 15. Nf1 c6 16. c4 Rc8 17. Be3 cxd5 18. cxd5 Nc5 19. Ng3 Bg7 20. b4 Ncd7 21. Nd2 Nb6 22. Bd3 Nfd7 23. Nb3 Na4 24. Na5 Ba8 25. Qd2 Ndb6 26. Ne2 Qd7 27. Rac1 f5 28. f3 f4 29. Bf2 Bf6 30. Bc2 Bb7 31. Bb3 Rxc1 32. Rxc1 Ba8 33. Nc3 Bd8 34. Nxa4 Nxa4 35. Bxa4 bxa4 36. Nc6 Qb7 37. Qc2 Qb5 38. Nxd8 Rxd8 39. Qc7 Qb8 40. Bh4 Qxc7 41. Rxc7 Re8 42. Be7 Rb8 43. Bxd6 Re8 44. Bxe5 Rxe5 45. Rc8+ Kf7 46. Rxa8 Re7 47. Rxa6 Rc7 48. Rc6 Rb7 49. a3 Rd7 50. Kf2 Ke7 51. Ke2 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.09"]
[Round "4.3"]
[White "Matyassy, Lazar"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2042"]
[BlackElo "2054"]
[PlyCount "79"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 e6 8. Ne5 Bh7 9. Qh5 Qc7 10. Bf4 Nf6 11. Qf3 Bxc2 12. Bc4 Bb4+ 13. Kf1 Qd8 14. Rc1 Bh7 15. Nh5 Nxh5 16. Qxh5 Qf6 17. Qg4 0-0 18. Bg5 Qf5 19. Qg3 Bd6 20. Bxh6 Bxe5 21. dxe5 Qg6 22. Qxg6 Bxg6 23. Bf4 Nd7 24. h5 Be4 25. h6 g5 26. Bxg5 Nxe5 27. Re1 f5 28. Bxe6+ Kh7 29. f3 Rae8 30. Bb3 Bd3+ 31. Kf2 c5 32. Bf4 Nc6 33. Bd6 Rxe1 34. Rxe1 Rd8 35. Bxc5 Kxh6 36. Re6+ Kg7 37. Be7 Rd7 38. Bf6+ Kf8 39. Bc3 a5 40. Ba4 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.08"]
[Round "3.3"]
[White "Demjen, Mark"]
[Black "Toth, Nikoletta"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2054"]
[BlackElo "1937"]
[PlyCount "85"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. c3 0-0 7. d4 Ba7 8. Re1 b5 9. Bb3 d6 10. h3 h6 11. Be3 Re8 12. Nbd2 Bb7 13. d5 Bxe3 14. fxe3 Ne7 15. Nh4 Ng6 16. Nf5 Bc8 17. Rf1 Bd7 18. Qe2 Rf8 19. Rf2 Kh7 20. Raf1 Ng8 21. g4 Rb8 22. Kh2 a5 23. Rg1 N6e7 24. Qf1 g5 25. Ng3 f6 26. Nh5 Ng6 27. Nf3 a4 28. Bd1 c5 29. h4 Qe7 30. Qh3 Kh8 31. Ng3 Rf7 32. hxg5 fxg5 33. Qh5 Nf8 34. Nf5 Bxf5 35. gxf5 Nf6 36. Qh3 g4 37. Rxg4 Nxg4+ 38. Qxg4 Rg7 39. Qh3 Nd7 40. Nh4 Nf8 41. f6 Qf7 42. fxg7+ Qxg7 43. Nf5 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.07"]
[Round "2.3"]
[White "Krivenko, Dion"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2005"]
[BlackElo "2054"]
[PlyCount "61"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team B"]
[BlackTeam "Team A"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 Nc6 5. 0-0 0-0 6. d3 h6 7. Nd5 Ba5 8. c3 d6 9. a4 Bb6 10. b4 a5 11. b5 Nxd5 12. bxc6 Ne7 13. cxb7 Bxb7 14. Be3 Ba7 15. Qe2 Ng6 16. Rad1 Kh8 17. Bxa7 Rxa7 18. Qe3 Ra8 19. d4 exd4 20. cxd4 Qe8 21. Nd2 Qxa4 22. f4 Ne7 23. f5 f6 24. Rb1 Ba6 25. Bb3 Qe8 26. Rf3 a4 27. Be6 Bc8 28. Ba2 d5 29. Re1 Bd7 30. Rh3 Kh7 31. g4 1/2-1/2

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2021.02.06"]
[Round "1.3"]
[White "Demjen, Mark"]
[Black "Tancsa, Tamas"]
[Result "1-0"]
[ECO "C25"]
[WhiteElo "2054"]
[BlackElo "2063"]
[PlyCount "53"]
[EventDate "2021.02.06"]
[EventType "schev"]
[EventRounds "10"]
[EventCountry "HUN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Team A"]
[BlackTeam "Team B"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. g3 g6 2. Bg2 Bg7 3. d3 d6 4. e4 e5 5. Nc3 Nc6 6. Nge2 f5 7. 0-0 Nf6 8. f4 0-0 9. h3 Be6 10. Be3 Qd7 11. Kh2 d5 12. fxe5 Nxe5 13. Bd4 Qd6 14. Bxe5 Qxe5 15. d4 Qd6 16. e5 Qd7 17. exf6 Bxf6 18. Nf4 c6 19. Nxe6 Qxe6 20. Qd2 Rae8 21. Rae1 Qd6 22. Ne2 Re7 23. Nf4 Rfe8 24. c3 Bg5 25. Rxe7 Rxe7 26. Qd3 b5 27. b3 1-0

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.30"]
[Round "9"]
[White "Pogany, Zsombor"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "2221"]
[BlackElo "2018"]
[PlyCount "47"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 0-0 7. Nd3 Bb6 8. e5 Ne8 9. 0-0 d6 10. exd6 Nxd6 11. Nf4 c6 12. d3 N6f5 13. Ne4 Nh4 14. c3 Ne6 15. Nxe6 Bxe6 16. Bg5 f6 17. Bxh4 g5 18. Bb3 Bxb3 19. Qxb3+ Kg7 20. Bg3 Qxd3 21. Rfe1 Rae8 22. Nd6 Rxe1+ 23. Rxe1 Qd2 24. Qd1 1-0

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.29"]
[Round "8"]
[White "Demjen, Mark"]
[Black "Forgacs, Andras"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2018"]
[BlackElo "1880"]
[PlyCount "63"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. e3 e6 4. Bd3 Bg4 5. c4 c6 6. Qb3 Qc7 7. Ne5 Bh5 8. e4 Bd6 9. exd5 cxd5 10. Nc3 a6 11. cxd5 Bxe5 12. dxe5 Qxe5+ 13. Be3 b5 14. dxe6 Nf6 15. h3 Nc6 16. g4 Bg6 17. Bxg6 fxg6 18. g5 Na5 19. Qd1 Rd8 20. Qf3 b4 21. gxf6 bxc3 22. f7+ Ke7 23. 0-0 cxb2 24. Rad1 Nc4 25. Bf4 Qb5 26. Qe4 g5 27. Rd7+ Rxd7 28. exd7+ Kxf7 29. Re1 Qxd7 30. Qxc4+ Kg6 31. Re6+ Kh5 32. Qe2+ 1-0

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.28"]
[Round "7"]
[White "Tubak, Daniel"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "2214"]
[BlackElo "2018"]
[PlyCount "113"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. N1e2 Nf6 7. Nf4 e5 8. dxe5 Qa5+ 9. c3 Qxe5+ 10. Qe2 Qxe2+ 11. Bxe2 Nbd7 12. Nxg6 hxg6 13. 0-0 0-0-0 14. Rd1 Bc5 15. h3 Rhe8 16. Kf1 Nb6 17. Rxd8+ Rxd8 18. b3 Bd6 19. Bg5 Be5 20. Rc1 Nbd5 21. c4 Nf4 22. Rd1 Rxd1+ 23. Bxd1 Ne6 24. Bd2 Bf4 25. Bc3 c5 26. Ne2 Bd6 27. Bc2 Kc7 28. g3 Nd7 29. f4 Be7 30. Kf2 Bf6 31. Bd2 Nd4 32. Nxd4 Bxd4+ 33. Kf3 Nf6 34. g4 Kd6 35. h4 b6 36. g5 Ng8 37. f5 gxf5 38. Bxf5 f6 39. g6 Ne7 40. Ke4 a5 41. h5 Ng8 42. Bc8 Ne7 43. Bf4+ Be5 44. Bxe5+ fxe5 45. h6 gxh6 46. g7 h5 47. Bb7 h4 48. Bd5 h3 49. Kf3 e4+ 50. Bxe4 Ke5 51. Bd5 Kd4 52. g8Q Nxg8 53. Bxg8 h2 54. Kg2 Kc3 55. Bd5 Kb2 56. Bc6 Kxa2 57. Ba4 1-0

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.27"]
[Round "5"]
[White "Demjen, Mark"]
[Black "Kelemen, David"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2018"]
[BlackElo "2171"]
[PlyCount "82"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 a6 2. d4 b5 3. a4 b4 4. Bd3 e6 5. Ne2 Bb7 6. 0-0 c5 7. c3 cxd4 8. cxd4 Nf6 9. Bg5 Qb6 10. Nd2 d5 11. a5 Qa7 12. e5 Nfd7 13. Be3 Nc6 14. f4 Be7 15. Nb3 f6 16. exf6 Nxf6 17. Ng3 0-0 18. Kh1 Bd6 19. Nh5 g6 20. Nxf6+ Rxf6 21. Qd2 Raf8 22. g4 Bc8 23. h4 Qb8 24. g5 R6f7 25. h5 Ne7 26. Rf2 Bxf4 27. Raf1 Bxe3 28. Qxe3 Rxf2 29. Rxf2 Rxf2 30. Qxf2 Nf5 31. Bxf5 gxf5 32. Qh2 Qb5 33. Qc7 Qf1+ 34. Kh2 Qf2+ 35. Kh1 Qf3+ 36. Kg1 Qg4+ 37. Kf2 Qh4+ 38. Kf1 Qh3+ 39. Kg1 Qe3+ 40. Kf1 Qd3+ 41. Kf2 Qb5 1/2-1/2

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.27"]
[Round "6"]
[White "Demjen, Mark"]
[Black "Vodila, Martin Botond"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "2018"]
[BlackElo "2224"]
[PlyCount "50"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 0-0 6. Nge2 Nc6 7. 0-0 e5 8. d5 Ne7 9. Rb1 Nh5 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. h3 Nf6 14. c5 h5 15. Qc2 g4 16. hxg4 hxg4 17. cxd6 cxd6 18. fxg4 Nxg4 19. Nb5 Qe8 20. Rfc1 Qh5 21. Kf1 Qh1+ 22. Ng1 Ne3+ 23. Bxe3 fxe3+ 24. Ke2 Qxg2+ 25. Kxe3 Bh6# 0-1

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.26"]
[Round "4"]
[White "Pribelszky, Bence"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B57"]
[WhiteElo "2286"]
[BlackElo "2018"]
[PlyCount "36"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 g6 7. Nxc6 bxc6 8. e5 Ng4 9. exd6 Qxd6 10. Qxd6 exd6 11. Bf4 d5 12. Nxd5 cxd5 13. Bxd5 Bc5 14. Bxa8 Bxf2+ 15. Ke2 0-0 16. h3 Ba6+ 17. Kf3 Rxa8 18. hxg4 Bd4 1-0

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.25"]
[Round "3"]
[White "Demjen, Mark"]
[Black "Kovacs, Gabor Etele"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2018"]
[BlackElo "2075"]
[PlyCount "83"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. e3 Nf6 4. d4 c6 5. Nbd2 Be7 6. Bd3 0-0 7. 0-0 Nbd7 8. e4 dxe4 9. Nxe4 b6 10. Be3 Bb7 11. Nxf6+ Bxf6 12. Qc2 h6 13. c5 e5 14. Rad1 Qc7 15. b4 exd4 16. Bxd4 Rad8 17. Rfe1 Rfe8 18. Rxe8+ Rxe8 19. Bf5 Bxd4 20. Nxd4 Nf6 21. g3 b5 22. Bh3 Nd5 23. a3 Bc8 24. Bg2 Bg4 25. Rc1 a6 26. h3 Bd7 27. Rd1 Qe5 28. Qd2 Kh8 29. Kh2 f5 30. Nxc6 Bxc6 31. Bxd5 Rd8 32. Bxc6 Rxd2 33. Rxd2 f4 34. Kg2 fxg3 35. fxg3 Qe3 36. Rf2 Qxa3 37. Be4 g5 38. c6 Qxb4 39. c7 Qxe4+ 40. Kh2 Qe8 41. Rd2 Kg7 42. Rd8 1/2-1/2

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.25"]
[Round "2"]
[White "Geher, Koppany"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2319"]
[BlackElo "2018"]
[PlyCount "48"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 Bxd3 6. Qxd3 e6 7. Bg5 Qb6 8. Nd2 c5 9. c4 Qxb2 10. Rd1 Nc6 11. Ngf3 Nb4 12. Qe2 cxd4 13. 0-0 d3 14. Qe3 Qa3 15. Rb1 Nh6 16. Bxh6 gxh6 17. Rb3 Qxa2 18. cxd5 Nxd5 19. Qxd3 Qa6 20. Qb1 Bg7 21. Rxb7 0-0 22. Ne4 Rac8 23. Ng3 Nb6 24. Re7 Qa3 1/2-1/2

[Event "HUN-ch U18"]
[Site "Budapest"]
[Date "2020.10.24"]
[Round "1"]
[White "Demjen, Mark"]
[Black "Ongut, Tamas Gunes"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2018"]
[BlackElo "2333"]
[PlyCount "91"]
[EventDate "2020.10.24"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c4 e5 4. Be2 Nc6 5. 0-0 g6 6. Nc3 Bg7 7. d3 Nge7 8. Ne1 0-0 9. Rb1 Be6 10. Nc2 f5 11. Nd5 b6 12. b4 cxb4 13. Ncxb4 Nxb4 14. Nxb4 fxe4 15. dxe4 Qd7 16. Ba3 Rac8 17. Nd5 Bxd5 18. cxd5 Rc3 19. Bb5 Qd8 20. Bb4 Rc7 21. Qb3 Bh6 22. Rfd1 Rf6 23. Rd3 Qc8 24. Rf3 Rc1+ 25. Rxc1 Qxc1+ 26. Bf1 Qg5 27. Rxf6 Qxf6 28. Qa3 a5 29. Bxd6 Nc8 30. Bc7 Bf8 31. Qb2 Bd6 32. Bxd6 Qxd6 33. Qc3 Ne7 34. g3 Kf7 35. Bh3 Ke8 36. Be6 Kd8 37. Kg2 a4 38. Qc4 a3 39. Qa6 g5 40. f4 gxf4 41. gxf4 exf4 42. Qa8+ Kc7 43. Qa7+ Kd8 44. e5 Nc8 45. Qg7 Qc5 46. Qd7# 1-0

[Event "HUN-chT 1920"]
[Site "Hungary"]
[Date "2020.09.13"]
[Round "9.12"]
[White "Demjen, Mark"]
[Black "Csernyik, Mark"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2040"]
[BlackElo "1725"]
[PlyCount "68"]
[EventDate "2019.11.16"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Morihana"]
[BlackTeam "Kobanya Aquarena"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 d6 3. c4 Nf6 4. Nc3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. f3 0-0 8. Be3 Bd7 9. Qd2 Nc6 10. Nc2 Rc8 11. Rb1 a6 12. Be2 Be6 13. 0-0 Nd7 14. Rfc1 Nce5 15. b3 b5 16. f4 Ng4 17. Bd4 bxc4 18. Bxg7 Kxg7 19. Nd4 Ndf6 20. Nxe6+ fxe6 21. Qd4 e5 22. fxe5 Nxe5 23. bxc4 Qa5 24. Rb7 Rc7 25. Rcb1 Rfc8 26. R7b4 Qc5 27. Qxc5 Rxc5 28. Nd5 Nxd5 29. cxd5 Rc1+ 30. Rxc1 Rxc1+ 31. Kf2 Rc2 32. Ra4 Nd3+ 33. Ke3 Nc5 34. Ra5 Rc3+ 1/2-1/2

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.14"]
[Round "10"]
[White "Kuhn, Ulf"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "2081"]
[BlackElo "1943"]
[PlyCount "69"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Weaker Row"]
[BlackTeam "Stronger Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e4 e5 6. Nge2 Nc6 7. 0-0 d6 8. d3 a5 9. f4 exf4 10. Nxf4 Bg4 11. Qd2 Nh5 12. Nxh5 gxh5 13. h3 Be6 14. Nd5 h4 15. g4 Bxd5 16. exd5 Nd4 17. Be4 h5 18. Qf2 hxg4 19. hxg4 Qd7 20. Qxh4 f5 21. gxf5 Nxf5 22. Qg4 Rae8 23. Bxf5 Rxf5 24. Qxf5 Bd4+ 25. Kh1 Qxf5 26. Rxf5 Re1+ 27. Kg2 Rg1+ 28. Kf3 Kh7 29. Be3 Rxa1 30. Bxd4 Kg6 31. Rf6+ Kg5 32. Rf7 Rf1+ 33. Bf2 Rb1 34. b3 a4 35. bxa4 1-0

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.13"]
[Round "9"]
[White "Demjen, Mark"]
[Black "Nemeth, Zalan"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1943"]
[BlackElo "1989"]
[PlyCount "65"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Stronger Row"]
[BlackTeam "Weaker Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 g5 5. Bg3 Nc6 6. Nf3 Bg7 7. Nc3 Ngxe5 8. Nxe5 Nxe5 9. e3 d6 10. Be2 Be6 11. Qc2 Qd7 12. Nb5 h5 13. h4 g4 14. Rd1 0-0 15. 0-0 Qe7 16. Nd4 f5 17. c5 d5 18. Bxe5 Bxe5 19. Nxe6 Qxe6 20. Rxd5 Qe7 21. Rfd1 g3 22. fxg3 Bxg3 23. Qc4 Qxe3+ 24. Kh1 Kh8 25. R1d3 Qxe2 26. Qc3+ Be5 27. Rxe5 Qf1+ 28. Kh2 Qf4+ 29. Kg1 Qxh4 30. Re6+ Kg8 31. Rg6+ Kf7 32. Qg7+ Ke8 33. Qd7# 1-0

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.12"]
[Round "8"]
[White "Lakatos, Tamas"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "1940"]
[BlackElo "1943"]
[PlyCount "30"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Weaker Row"]
[BlackTeam "Stronger Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Nf6 6. 0-0 d6 7. h3 Be7 8. c3 0-0 9. Re1 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. Bg5 Bg7 1-0

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.11"]
[Round "7"]
[White "Demjen, Mark"]
[Black "Tancsa, Tamas"]
[Result "0-1"]
[ECO "C74"]
[WhiteElo "1943"]
[BlackElo "2105"]
[PlyCount "92"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Stronger Row"]
[BlackTeam "Weaker Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. 0-0 Bd3 8. Re1 Be7 9. Qb3 Rb8 10. Qd5 Bf5 11. Bb3 Nf6 12. Qf7+ Kd7 13. Ng5 Qg8 14. Qxg8 Rhxg8 15. Bxg8 Rxg8 16. Nf3 e4 17. Nh4 Be6 18. g3 g5 19. Ng2 Ne5 20. Re3 d5 21. d4 Nd3 22. Rxd3 exd3 23. Be3 b6 24. Ne1 Bf5 25. Nd2 Ng4 26. Rd1 Nxe3 27. fxe3 c5 28. dxc5 bxc5 29. c4 Ke6 30. b3 Rd8 31. cxd5+ Kxd5 32. Nc4 Ke4 33. Kf2 Bf6 34. Nd2+ Kd5 35. Rc1 Re8 36. Rc4 Bd8 37. Ng2 Ba5 38. e4+ Kc6 39. Ne3 Be6 40. Nf3 Bxc4 41. Nxc4 Bc3 42. Ke3 g4 43. Ng5 Rd8 44. Nf7 Bd4+ 45. Kxd3 Rd7 46. Nfd6 Rxd6 0-1

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.10"]
[Round "6"]
[White "Juhasz, Agoston Botond"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2176"]
[BlackElo "1943"]
[PlyCount "59"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Weaker Row"]
[BlackTeam "Stronger Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 d6 5. dxe5 dxe5 6. Nbd2 Bg4 7. h3 Bh5 8. c3 Qd6 9. 0-0 0-0-0 10. Bb5 Bg5 11. Qa4 Bxd2 12. Nxd2 Nge7 13. Nc4 Qg6 14. f3 Qe6 15. Be3 Kb8 16. b4 Rd3 17. Bxc6 Nxc6 18. b5 Nd4 19. cxd4 exd4 20. Bf4 g5 21. Bh2 Rg8 22. Rac1 f5 23. b6 f4 24. Qxa7+ Kc8 25. Nd6+ Kd7 26. Nxb7 Qxb6 27. Nc5+ Kd6 28. Qxb6+ cxb6 29. Nxd3 Bf7 30. Nxf4 1-0

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.08"]
[Round "5"]
[White "Demjen, Mark"]
[Black "Matyassy, Lazar"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "1943"]
[BlackElo "1981"]
[PlyCount "66"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Stronger Row"]
[BlackTeam "Weaker Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 0-0 10. Qd2 a5 11. f3 a4 12. 0-0 Qa5 13. Rab1 Be6 14. Rfc1 Rfc8 15. b4 axb3 16. axb3 Qb4 17. Qd1 Nd7 18. Nd5 Bxd5 19. cxd5 Rc3 20. Rxc3 Qxc3 21. Qc1 Rc8 22. Bb5 Qxc1+ 23. Rxc1 Rxc1+ 24. Bxc1 Nc5 25. b4 Bd4+ 26. Kf1 Nb3 27. Bh6 Bc3 28. Ba4 Nd2+ 29. Ke2 Nb1 30. Bc2 Na3 31. Bd3 Bxb4 32. Bc1 Bc5 33. Kd2 Bb4+ 1/2-1/2

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.07"]
[Round "4"]
[White "Szalay Ocsak, Bank"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1946"]
[BlackElo "1943"]
[PlyCount "54"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Weaker Row"]
[BlackTeam "Stronger Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. Nc3 g6 4. Nf3 Bg7 5. h3 dxe4 6. Nxe4 Nf6 7. Nxf6+ Bxf6 8. Bc4 Nd7 9. 0-0 Nb6 10. Bb3 a5 11. a3 a4 12. Ba2 0-0 13. Bg5 Ra5 14. Qd2 Rf5 15. Bxf6 exf6 16. Rfe1 Nd5 17. Re4 Rh5 18. Rc1 g5 19. Bxd5 Qxd5 20. Qb4 Be6 21. Qe7 Rh6 22. Nd2 Bf5 23. Re3 Qxd4 24. Ne4 Qxb2 25. Nxg5 Rg6 26. Nxh7 Rc8 27. Qc5 Qb5 1-0

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.06"]
[Round "3"]
[White "Demjen, Mark"]
[Black "Kuhn, Ulf"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "1943"]
[BlackElo "2081"]
[PlyCount "135"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Stronger Row"]
[BlackTeam "Weaker Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 e5 5. Nf3 Nd7 6. Be2 Ne7 7. h4 h6 8. Be3 f5 9. dxe5 dxe5 10. exf5 gxf5 11. g3 0-0 12. Qd2 Rf6 13. c5 Qf8 14. Bc4+ Kh8 15. 0-0-0 e4 16. Ne1 Rc6 17. Bb5 Nxc5 18. Bxc6 Nxc6 19. Qd5 Ne6 20. Nc2 Ne5 21. Nd4 Nc5 22. Kb1 c6 23. Nxc6 bxc6 24. Qxc5 Qxc5 25. Bxc5 Nd3 26. Rxd3 exd3 27. Na4 Be6 28. Be3 Bd5 29. Rd1 Rd8 30. Nc5 Bf3 31. Rd2 Be2 32. Ne6 Rd7 33. Nf4 Bf3 34. Nxd3 Be4 35. Kc2 a6 36. b3 Rd5 37. f3 Bxf3 38. Nf4 Be4+ 39. Kc1 Rxd2 40. Kxd2 Kh7 41. Ne6 Be5 42. Bf4 Bd5 43. Bxe5 Bxe6 44. Kc3 Kg6 45. Kb4 Kf7 46. Kc5 Bd5 47. Kb6 Ke6 48. Bf4 h5 49. Kxa6 Kd7 50. Kb6 Kc8 51. Be5 Kd7 52. Kc5 Kc8 53. Kb4 Kb7 54. Bd6 Bf3 55. a4 Be2 56. Bc5 Bf1 57. Kc3 Be2 58. b4 Bg4 59. Be3 Bd1 60. a5 Be2 61. Kd4 Bf3 62. Ke5 Bg4 63. Bf4 Ka6 64. Kd6 Bf3 65. Ke6 Bg4 66. Kd7 Bf3 67. Ke6 Bg4 68. Ke5 1/2-1/2

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.05"]
[Round "2"]
[White "Nemeth, Zalan"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "1989"]
[BlackElo "1943"]
[PlyCount "64"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Weaker Row"]
[BlackTeam "Stronger Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. Rb1 c6 6. e4 d5 7. cxd5 cxd5 8. e5 Ne4 9. d4 Bf5 10. Ra1 Nc6 11. Nge2 f6 12. Qb3 Nxc3 13. bxc3 e6 14. exf6 Qxf6 15. Be3 Na5 16. Qb5 Nc4 17. Nf4 Qf7 18. h4 h6 19. 0-0 g5 20. hxg5 hxg5 21. Nh3 Qh5 22. Bxd5 Nxe3 23. fxe3 Qxh3 24. Bg2 Qxg3 25. Rf3 Qh4 26. Raf1 g4 27. Rxf5 Rxf5 28. Rxf5 exf5 29. Qxb7 Rf8 30. Qd5+ Kh8 31. c4 Qe1+ 32. Kh2 Rf6 0-1

[Event "Budapest FS07 Nadassy"]
[Site "Budapest"]
[Date "2020.07.04"]
[Round "1"]
[White "Demjen, Mark"]
[Black "Lakatos, Tamas"]
[Result "0-1"]
[ECO "C96"]
[WhiteElo "1943"]
[BlackElo "1940"]
[PlyCount "33"]
[EventDate "2020.07.04"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]
[WhiteTeam "Stronger Row"]
[BlackTeam "Weaker Row"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Be7 5. 0-0 Nf6 6. Re1 b5 7. Bb3 0-0 8. h3 d6 9. c3 Na5 10. Bc2 c5 11. d4 cxd4 12. cxd4 Qc7 13. b3 Nc6 14. Be3 Bb7 15. Nbd2 Nd7 16. Rc1 Qb6 17. Nf1 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.10"]
[Round "9.1"]
[White "Demjen, Mark"]
[Black "Lakshyesh, Mohan Gupta"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "2058"]
[BlackElo "1761"]
[PlyCount "131"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "A Team Higher Elo"]
[BlackTeam "B Team Lower Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. dxe5 dxe5 6. 0-0 Bd6 7. Nbd2 a6 8. Bd3 Nf6 9. c3 0-0 10. h3 Qe7 11. Nc4 Rad8 12. Bg5 Be6 13. Ne3 Bc5 14. Qe2 h6 15. Bh4 g5 16. Nxg5 hxg5 17. Bxg5 Kg7 18. f4 Rxd3 19. Qxd3 Qd7 20. Qe2 Nxe4 21. Rad1 Ng3 22. Qf3 Bxe3+ 23. Qxe3 Nxf1 24. Rxf1 f6 25. fxe5 Bc4 26. Bxf6+ Kf7 27. Rf4 Qe6 28. Qc5 Rc8 29. Rxc4 Rg8 30. Rf4 Qxa2 31. Bh4+ Ke8 32. Qc4 Qxc4 33. Rxc4 Kd7 34. Bf6 Ke6 35. g4 Kd5 36. Rf4 b5 37. Kg2 Nxe5 38. Rf5 Re8 39. Rxe5+ Rxe5 40. Bxe5 Kxe5 41. Kf3 c5 42. Ke3 a5 43. h4 a4 44. h5 Kf6 45. h6 Kg6 46. g5 Kh7 47. Ke4 Kg6 48. Kd5 b4 49. cxb4 cxb4 50. Kc4 a3 51. bxa3 bxa3 52. Kb3 Kh7 53. Kxa3 Kg6 54. Kb3 Kh7 55. Kc4 Kg6 56. Kd5 Kh7 57. Ke6 Kg8 58. g6 Kf8 59. h7 Kg7 60. h8Q+ Kxh8 61. Kf6 Kg8 62. g7 Kh7 63. Kf7 Kh6 64. g8Q Kh5 65. Qg3 Kh6 66. Qg6# 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.09"]
[Round "8.1"]
[White "Lu, Miaoyi"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "E64"]
[WhiteElo "1824"]
[BlackElo "2058"]
[PlyCount "77"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "B Team Lower Elo"]
[BlackTeam "A Team Higher Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. g3 Bg7 6. Bg2 0-0 7. Nf3 Na6 8. 0-0 Nc7 9. a4 b6 10. Qc2 a6 11. Rb1 b5 12. axb5 axb5 13. b4 Na6 14. Ba3 cxb4 15. Bxb4 Nxb4 16. Rxb4 bxc4 17. Rxc4 Ba6 18. Ra4 Qc7 19. Nd4 Bb7 20. Nc6 Kh8 21. Nb5 Qb6 22. Rb4 Qc5 23. Qd2 Nxd5 24. Rc1 Nxb4 25. Rxc5 dxc5 26. Nca7 Bxg2 27. Kxg2 Rfd8 28. Qe3 c4 29. Qxe7 Nd5 30. Qc5 c3 31. e4 Ne7 32. Qxe7 c2 33. Qc7 Rd2 34. Na3 Bd4 35. N7b5 Bxf2 36. Qc3+ Rd4 37. Nxd4 Rxa3 38. Qc8+ Kg7 39. Kxf2 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.08"]
[Round "7.1"]
[White "Demjen, Mark"]
[Black "Vishwa, Vasnawala"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2058"]
[BlackElo "2011"]
[PlyCount "62"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "A Team Higher Elo"]
[BlackTeam "B Team Lower Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 d6 3. c4 e5 4. g3 Nc6 5. Bg2 f5 6. d3 Nf6 7. 0-0 Be7 8. Nc3 0-0 9. Bg5 Be6 10. Bxf6 Bxf6 11. exf5 Bxf5 12. Nd5 Rb8 13. h4 Qd7 14. Ng5 Bxg5 15. hxg5 Bg4 16. f3 Bh5 17. g4 Bf7 18. f4 exf4 19. Rxf4 Be6 20. Qd2 Nd4 21. Re1 Rxf4 22. Nxf4 Bf7 23. Qf2 Qxg4 24. Re3 Qxg5 25. Nh3 Qf5 26. Qg3 Qg6 27. Qf2 Re8 28. Rxe8+ Bxe8 29. Kh1 Bc6 30. Bxc6 bxc6 31. Qh4 Qf6 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.07"]
[Round "6.1"]
[White "Moerman, Thomas"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "A62"]
[WhiteElo "1946"]
[BlackElo "2058"]
[PlyCount "75"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "B Team Lower Elo"]
[BlackTeam "A Team Higher Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. g3 g6 7. Bg2 Bg7 8. Nf3 0-0 9. 0-0 Bg4 10. Nd2 Qd7 11. a4 Qe7 12. Re1 h5 13. h3 Bc8 14. Nc4 Nfd7 15. Nb5 Ne5 16. Nbxd6 Na6 17. Bf4 Rd8 18. Nxc8 Raxc8 19. d6 Qe8 20. Bxe5 Bxe5 21. Bxb7 Bxd6 22. Nxd6 Qe7 23. Nxc8 Qc7 24. Qb3 Nb4 25. Rad1 Rxc8 26. Bxc8 Qxc8 27. Kg2 Qc6+ 28. Qf3 Qxa4 29. Rd8+ Kg7 30. Qc3+ f6 31. Rd6 Qe8 32. Qxf6+ Kh7 33. Re6 Qg8 34. Re7+ Kh6 35. Qf4+ g5 36. Qf6+ Qg6 37. Qh8+ Qh7 38. Qxh7# 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.05"]
[Round "5.1"]
[White "Demjen, Mark"]
[Black "Mao, Yingzhou"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2058"]
[BlackElo "1938"]
[PlyCount "76"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "A Team Higher Elo"]
[BlackTeam "B Team Lower Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. b4 cxb4 7. a3 bxa3 8. Bxa3 Nge7 9. Bd6 0-0 10. Nc3 Re8 11. Bc4 Nd4 12. Nxd4 exd4 13. Nb5 Nc6 14. Nc7 Be5 15. Qf3 Re6 16. Nxe6 dxe6 17. Bxe5 Nxe5 18. Qe2 Qc7 19. Bb3 Bd7 20. d3 a6 21. f4 Nc6 22. Qf2 b5 23. f5 exf5 24. exf5 Bxf5 25. g4 Bxg4 26. Qg2 Qd7 27. Bd5 Rc8 28. Rf1 Ne5 29. Qe4 Re8 30. Rae1 Nf3+ 31. Rxf3 Rxe4 32. Bxe4 Bxf3 33. Bxf3 Qc7 34. Rb1 b4 35. Rb2 Qc3 36. Ra2 Qe1+ 37. Kg2 Qd2+ 38. Kg3 b3 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.04"]
[Round "4.1"]
[White "Friberg, Lennart"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "2015"]
[BlackElo "2058"]
[PlyCount "81"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "B Team Lower Elo"]
[BlackTeam "A Team Higher Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. g3 Nf6 2. Bg2 g6 3. d4 Bg7 4. Nf3 0-0 5. 0-0 c5 6. c4 cxd4 7. Nxd4 Nc6 8. Nc3 Ng4 9. Nxc6 bxc6 10. Qc2 Qa5 11. Qe4 Qh5 12. h3 Nf6 13. Qxe7 Ba6 14. b3 Nd5 15. Nxd5 cxd5 16. g4 Rfe8 17. Qd6 Qh4 18. Rb1 Bb7 19. e3 Be5 20. Qxd7 Re7 21. Qb5 a6 22. Qb4 a5 23. Qe1 dxc4 24. bxc4 Bxg2 25. Kxg2 h5 26. f4 Qxe1 27. Rxe1 Bxf4 28. Kf3 Bh6 29. gxh5 gxh5 30. Rb5 Re6 31. Rxh5 Rc8 32. Rxa5 Rxc4 33. Ra3 Rf6+ 34. Ke2 Rc2+ 35. Kd3 Rfc6 36. Bd2 f5 37. Rf1 Rb2 38. Rxf5 Rd6+ 39. Ke4 Rbxd2 40. Rb5 Re6+ 41. Kf3 1/2-1/2

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.03"]
[Round "3.1"]
[White "Demjen, Mark"]
[Black "Farkas, Otto Jr"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2058"]
[BlackElo "1980"]
[PlyCount "51"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "A Team Higher Elo"]
[BlackTeam "B Team Lower Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. c3 Nc6 5. e3 Bg4 6. Nbd2 cxd4 7. exd4 e6 8. Bd3 Bd6 9. Bxd6 Qxd6 10. 0-0 0-0 11. h3 Bxf3 12. Nxf3 Rab8 13. Qe2 Nd7 14. Rae1 g6 15. h4 Kg7 16. g3 h5 17. Ng5 a6 18. f4 b5 19. Kg2 Rb6 20. Bxg6 fxg6 21. Nxe6+ Kg8 22. Nxf8 Nxf8 23. f5 b4 24. fxg6 Qxg6 25. Qf3 Ne6 26. Rxe6 1-0

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.02"]
[Round "2.1"]
[White "Lakshyesh, Mohan Gupta"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1761"]
[BlackElo "2058"]
[PlyCount "100"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "B Team Lower Elo"]
[BlackTeam "A Team Higher Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 d6 5. dxe5 dxe5 6. Qxd8+ Bxd8 7. Bb5 f6 8. Bxc6+ bxc6 9. 0-0 Ba6 10. Re1 Ne7 11. Be3 Ng6 12. Nbd2 Be7 13. Nb3 Nf8 14. Bc5 Ne6 15. Bxe7 Kxe7 16. Na5 c5 17. Rad1 Nd4 18. Rd2 Bb5 19. Nb7 Ne6 20. Na5 Rhb8 21. b3 Rb6 22. a4 Ra6 23. axb5 Rxa5 24. c4 Nd4 25. b4 Ra4 26. bxc5 Rxc4 27. Nxd4 exd4 28. c6 Rb8 29. Ra2 Rxb5 30. Rxa7 Rxc6 31. Rd1 Rbc5 32. Kf1 Rc1 33. Rxc1 Rxc1+ 34. Ke2 Kd6 35. Kd2 Rg1 36. g3 Rg2 37. Ke2 Rxh2 38. Ra5 c5 39. Ra7 Rh1 40. Ra6+ Ke5 41. Kd3 Rd1+ 42. Kc2 Rf1 43. Ra7 Kxe4 44. Rxg7 Rxf2+ 45. Kd1 c4 46. g4 c3 47. g5 Kd3 48. Ke1 Re2+ 49. Kf1 c2 50. Rc7 fxg5 0-1

[Event "Budapest FS02 Nadassy"]
[Site "Budapest"]
[Date "2020.02.01"]
[Round "1.4"]
[White "Demjen, Mark"]
[Black "Lu, Miaoyi"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2058"]
[BlackElo "1824"]
[PlyCount "110"]
[EventDate "2020.02.01"]
[EventType "team-schev"]
[EventRounds "14"]
[EventCountry "HUN"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]
[WhiteTeam "A Team Higher Elo"]
[BlackTeam "B Team Lower Elo"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. Nf3 Nf6 2. d4 d5 3. Bf4 c5 4. c3 Nc6 5. dxc5 e6 6. b4 a5 7. b5 Ne7 8. Qa4 Ng6 9. Be3 Ne4 10. c6 bxc6 11. bxc6 Qc7 12. Nbd2 Nxc3 13. Qc2 Nb5 14. Bd4 Na3 15. Qa4 Ba6 16. e3 Bxf1 17. Kxf1 Rc8 18. Rc1 Nc4 19. Nxc4 dxc4 20. Qxc4 Ba3 21. Rc2 e5 22. Qd3 Bd6 23. Bb2 0-0 24. h4 Rfd8 25. Qe4 Rb8 26. g3 Rb4 27. Qf5 Ne7 28. Qh5 f6 29. Nd2 Rb6 30. Qf3 Rxc6 31. Rxc6 Qxc6 32. Qxc6 Nxc6 33. Ke2 Bb4 34. Rd1 Kf7 35. a3 Bxd2 36. Rxd2 Rxd2+ 37. Kxd2 Ke6 38. Kc3 Kd5 39. f3 e4 40. f4 h5 41. Kb3 Ne7 42. Bc3 Nf5 43. Bxa5 Nxe3 44. Bb4 Nf5 45. Be1 Nd4+ 46. Kc3 Nb5+ 47. Kb4 Nxa3 48. Kxa3 Kc4 49. f5 e3 50. g4 hxg4 51. Kb2 Kd3 52. Kc1 Ke2 53. Bg3 Kf3 54. Bd6 g3 55. Kd1 Kf2 0-1

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2019.10.29"]
[Round "6.2"]
[White "Csajbok, Levente Tamas"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "C95"]
[WhiteElo "1820"]
[BlackElo "1902"]
[PlyCount "62"]
[EventDate "2019.10.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]
[WhiteTeam "Sarkany DSE"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. h3 d6 9. c3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. Bd2 Bg7 16. Qc1 exd4 17. cxd4 c5 18. d5 c4 19. Bh6 Bh8 20. Qd2 Rc8 21. Rac1 Nc5 22. Nd4 Nfd7 23. b4 Nd3 24. Bxd3 Bxd4 25. Bxc4 Qh4 26. Qxd4 Qxh6 27. Qa7 Rc7 28. Rb1 bxc4 29. b5 axb5 30. Rxb5 Ra8 31. Qd4 Qg7 0-1

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2019.10.29"]
[Round "7.2"]
[White "Demjen, Mark"]
[Black "Tancsa, Tamas"]
[Result "1-0"]
[ECO "C97"]
[WhiteElo "1902"]
[BlackElo "2082"]
[PlyCount "73"]
[EventDate "2019.10.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Paks Atomeromu"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. h3 d6 9. c3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Re8 13. Nbd2 Bf8 14. Nf1 g6 15. b3 Bg7 16. Be3 Nh5 17. Ng3 Nxg3 18. fxg3 f5 19. Qd2 Nb7 20. Rf1 Rf8 21. Rad1 c4 22. b4 a5 23. exf5 gxf5 24. Nh4 e4 25. g4 axb4 26. cxb4 Rxa2 27. gxf5 Bf6 28. Rf4 Rf7 29. Bd4 Bxd4+ 30. Qxd4 Rxc2 31. Qxe4 Ra2 32. Qe8+ Kg7 33. Rg4+ Kf6 34. Re1 Nd8 35. Qh8+ Rg7 36. Rxg7 Nf7 37. Rg6# 1-0

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2019.10.28"]
[Round "5.2"]
[White "Demjen, Mark"]
[Black "Blahota, Marcell"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "1902"]
[BlackElo "1765"]
[PlyCount "74"]
[EventDate "2019.10.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Nyiregyhaza VSC"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3 e6 7. Nf4 Bd6 8. h4 Bxf4 9. Bxf4 h6 10. h5 Bh7 11. Qg4 Qxd4 12. Rd1 Qxb2 13. Bd3 Qc3+ 14. Ke2 Nd7 15. Bxh7 Rxh7 16. Rxd7 Nf6 17. Qf3 Qxf3+ 18. Kxf3 Kxd7 19. Rd1+ Ke8 20. Be5 Rd8 21. Rb1 b6 22. Rb3 Rd5 23. Bc3 Rh8 24. Ra3 Rd7 25. Be5 Ke7 26. Re3 Rhd8 27. Rc3 c5 28. Ra3 Rb7 29. Ra4 Rd5 30. Bb2 Nxh5 31. c4 Rd2 32. Bc1 Rc2 33. Ne2 Rd7 34. Be3 e5 35. Ng1 f5 36. g4 e4+ 37. Kg2 f4 0-1

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2019.10.28"]
[Round "4.2"]
[White "Ongut, Tamas Gunes"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2214"]
[BlackElo "1902"]
[PlyCount "66"]
[EventDate "2019.10.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]
[WhiteTeam "Budapest MTK"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. Nf3 Nf6 2. c4 e6 3. b3 d5 4. Bb2 c5 5. e3 Nc6 6. cxd5 exd5 7. d4 Bf5 8. dxc5 Bxc5 9. Bd3 Bb4+ 10. Ke2 Bg4 11. a3 Bd6 12. h3 Bxf3+ 13. gxf3 Qe7 14. b4 0-0 15. Rg1 Be5 16. Qd2 Rfe8 17. Kf1 d4 18. e4 Qe6 19. Qh6 Nh5 20. Qxh5 Qb3 21. Ke2 Qxb2+ 22. Nd2 Bf4 23. Rad1 Ne5 24. Qh4 Bxd2 25. Rb1 Qc3 26. Bb5 Re6 27. Rgd1 Nxf3 28. Qg4 Ne5 29. Qh5 Bh6 30. Ba4 Ng6 31. Qf5 Rf6 32. Rd3 Nf4+ 33. Qxf4 Qxd3+ 0-1

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2019.10.27"]
[Round "3.2"]
[White "Baski, Barnabas"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "2037"]
[BlackElo "1902"]
[PlyCount "53"]
[EventDate "2019.10.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]
[WhiteTeam "Dunaharaszti"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 c5 6. c4 cxd4 7. Nxd4 Nc6 8. Nc3 Ng4 9. e3 Nxd4 10. exd4 Nh6 11. Bxh6 Bxh6 12. Qb3 Rb8 13. Qa3 a6 14. Rfe1 d6 15. c5 Bg7 16. d5 b5 17. Ne4 b4 18. Qb3 dxc5 19. Nxc5 Rb5 20. Rac1 Bd4 21. Nd3 Bb7 22. Qc4 Ba7 23. Qc7 Bxd5 24. Bxd5 Rxd5 25. Qxa7 Rxd3 26. Qxe7 Qd4 27. Qe5 1/2-1/2

[Event "HUN-chT U18"]
[Site "Budapest"]
[Date "2019.10.27"]
[Round "2.2"]
[White "Demjen, Mark"]
[Black "Pasztor, Balazs"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "1902"]
[BlackElo "2152"]
[PlyCount "59"]
[EventDate "2019.10.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Geniusz Tata"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 exd4 13. cxd4 Re8 14. Nf1 Bb7 15. Ng3 g6 16. Bf4 cxd4 17. Nxd4 Bf6 18. b3 Rc8 19. Rc1 d5 20. Ndf5 gxf5 21. Nxf5 Ne5 22. Nh6+ Kf8 23. Qh5 Ng6 24. e5 Bg7 25. Bg5 Qb6 26. Nf5 Rxc2 27. Rxc2 Nxe5 28. Rce2 Qg6 29. Qxg6 hxg6 30. Nxg7 1-0

[Event "HUN-ch U16"]
[Site "Balatonlelle"]
[Date "2019.06.28"]
[Round "9"]
[White "Varga, Boldizsar"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "E40"]
[WhiteElo "1804"]
[BlackElo "1944"]
[PlyCount "138"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. Nge2 d5 6. a3 Be7 7. cxd5 exd5 8. Nf4 0-0 9. Be2 Bf5 10. 0-0 g5 11. Nd3 Ne4 12. Bd2 Re8 13. Rc1 Qd6 14. b4 Qh6 15. Nxd5 Bd6 16. f4 Qe6 17. b5 Nxd2 18. Qxd2 Nxd4 19. Nxc7 Bxc7 20. exd4 Qxe2 21. Qxe2 Rxe2 22. Rxc7 Bxd3 23. fxg5 Rc2 24. Rfxf7 Rxc7 25. Rxc7 Bxb5 26. Rxb7 a6 27. Rb6 Rd8 28. a4 Bc4 29. Rb4 Rxd4 30. g3 Rd1+ 31. Kg2 Bd5+ 32. Kh3 Kg7 33. Rb6 Bc4 34. Kh4 Rd4+ 35. g4 Be2 36. Rb7+ Kf8 37. Rxh7 Rxg4+ 38. Kh3 Rxg5 39. Rc7 Ra5 40. Kg3 Rxa4 41. Kf2 Bh5 42. Ke3 Ra2 43. Ra7 a5 44. Kd3 a4 45. Kc3 Be8 46. h4 Rh2 47. h5 Rxh5 48. Kb2 Rd5 49. Kc3 Bd7 50. Kb2 Ke7 51. Ra6 Rc5 52. Ka3 Bc6 53. Ra7+ Kd6 54. Rh7 Rc3+ 55. Kb2 Rb3+ 56. Ka2 Bd5 57. Rh6+ Kc5 58. Ka1 Kb4 59. Rh4+ Ka3 60. Rd4 Rc3 61. Rd1 Bb3 62. Rb1 Rd3 63. Rb2 Kb4 64. Rb1 a3 65. Rh1 Rd2 66. Rg1 Bc2 67. Re1 Kb3 68. Rc1 Re2 69. Rg1 Bd3 0-1

[Event "HUN-ch U16"]
[Site "Balatonlelle"]
[Date "2019.06.25"]
[Round "6"]
[White "Demjen, Mark"]
[Black "Leszko, Bence"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "1944"]
[BlackElo "2135"]
[PlyCount "64"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Bg7 5. 0-0 e5 6. Na3 Nge7 7. Nc4 0-0 8. d3 d5 9. exd5 Qxd5 10. Bg5 Be6 11. Ne3 Qd6 12. Nd2 Qc7 13. f4 f6 14. f5 gxf5 15. Bh4 Ng6 16. Qh5 Nf4 17. Rxf4 exf4 18. Nxf5 Bxf5 19. Qxf5 Qe5 20. Qxe5 Nxe5 21. d4 cxd4 22. cxd4 Ng6 23. Bc4+ Kh8 24. Bf2 Rfd8 25. Nf3 Ne7 26. h4 Nf5 27. Bd3 Ne3 28. Bxe3 fxe3 29. Be4 f5 30. Bxf5 Bxd4 31. Ng5 e2+ 32. Kh1 Bf2 0-1

[Event "HUN-ch U16"]
[Site "Balatonlelle"]
[Date "2019.06.24"]
[Round "5"]
[White "Demjen, Mark"]
[Black "Erseki, Aron"]
[Result "1/2-1/2"]
[ECO "B55"]
[WhiteElo "1944"]
[BlackElo "1854"]
[PlyCount "34"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 Nc6 6. c4 e6 7. Nc3 Be7 8. Be3 0-0 9. Be2 d5 10. cxd5 exd5 11. exd5 Nxd5 12. Nxd5 Qxd5 13. Nxc6 Qxc6 14. Qc1 Qg6 15. Kf2 Rd8 16. Qc7 Rd7 17. Qc4 Rd6 1/2-1/2

[Event "HUN-ch U16"]
[Site "Balatonlelle"]
[Date "2019.06.24"]
[Round "4"]
[White "Kovacsy, Barnabas"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "2136"]
[BlackElo "1944"]
[PlyCount "67"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. 0-0-0 Be7 13. Kb1 0-0 14. Ne4 Nxe4 15. Qxe4 Nf6 16. Qe2 Qd5 17. Ne5 Qe4 18. Qxe4 Nxe4 19. Be1 Rfd8 20. f3 Nf6 21. Bf2 Bd6 22. Nd3 b5 23. Bh4 Be7 24. Bxf6 Bxf6 25. c3 a5 26. Kc2 Rd5 27. g4 e5 28. dxe5 Bxe5 29. Nf2 Rad8 30. Rxd5 cxd5 31. Nd3 Bf6 32. Rd1 d4 33. Nf4 Rc8 34. Nd5 1/2-1/2

[Event "HUN-ch U16"]
[Site "Balatonlelle"]
[Date "2019.06.21"]
[Round "1"]
[White "Demjen, Mark"]
[Black "Pribelszky, Bence"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1944"]
[BlackElo "2244"]
[PlyCount "70"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 Nc6 4. Nc3 Nf6 5. Be2 d5 6. exd5 exd5 7. d4 cxd4 8. Nxd4 Bc5 9. Nxc6 bxc6 10. cxd5 cxd5 11. 0-0 0-0 12. Bf3 Be6 13. Bg5 Be7 14. Qd3 Rb8 15. b3 Qa5 16. Rac1 Rfd8 17. Na4 d4 18. Bf4 Rbc8 19. Rxc8 Bxc8 20. Rc1 Ba6 21. Qd1 Qf5 22. Bg3 Bb4 23. Rc7 Re8 24. Rxa7 Re1+ 25. Qxe1 Bxe1 26. Rxa6 g5 27. Ra8+ Kg7 28. Rd8 Qb1 29. h4 Ba5+ 30. Kh2 Bxd8 31. hxg5 Ne4 32. Be5+ Kg8 33. Bxd4 Nxg5 34. Bb7 Qxa2 35. Nc5 Ne6 0-1

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2019.04.28"]
[Round "11.11"]
[White "Demjen, Mark"]
[Black "Szalaji, Renata"]
[Result "1-0"]
[ECO "C96"]
[WhiteElo "1838"]
[BlackElo "1894"]
[PlyCount "181"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor II"]
[BlackTeam "Lillafured DVTK II"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 Bf6 13. d5 Nb6 14. Nf1 Bd7 15. b3 Qc7 16. Be3 Rac8 17. Ng3 g6 18. Qd2 Qd8 19. Rf1 Qe7 20. Rae1 Nb7 21. Bh6 Bg7 22. Bg5 f6 23. Be3 f5 24. Bg5 Qf7 25. exf5 gxf5 26. Nh4 Qxd5 27. Nhxf5 Qxd2 28. Bxd2 Rce8 29. Nxg7 Kxg7 30. Nh5+ Kh8 31. Bg5 Re6 32. f4 exf4 33. Rxe6 Bxe6 34. Nxf4 Re8 35. Nxe6 Rxe6 36. Rf7 Na5 37. Bd8 d5 38. Bxb6 Rxb6 39. Rxh7+ Kg8 40. Rd7 Re6 41. Rxd5 Re2 42. Bf5 Rxa2 43. Rxc5 Kf7 44. b4 Nc4 45. Rc6 Ra1+ 46. Kh2 Ne3 47. Bc8 a5 48. bxa5 Rxa5 49. Rb6 Nd1 50. c4 bxc4 51. Be6+ Kg7 52. Bxc4 Ne3 53. Bd3 Rg5 54. Be4 Nf1+ 55. Kg1 Nd2 56. Rb4 Re5 57. Bf3 Kf6 58. Kf2 Kg5 59. Rd4 Nb3 60. Rd5 Rxd5 61. Bxd5 Nd4 62. Be4 Kf4 63. Bb1 Ne6 64. g3+ Kg5 65. Kf3 Nd4+ 66. Ke3 Ne6 67. Bc2 Kh5 68. Bf5 Nc7 69. Ke4 Kg5 70. h4+ Kf6 71. Bd7 Na6 72. Kf4 Nc7 73. Ba4 Ne6+ 74. Kg4 Nc7 75. Bc2 Ne6 76. Kh5 Kg7 77. Bf5 Nd4 78. Kg5 Ne2 79. g4 Nd4 80. Kf4 Ne2+ 81. Ke5 Ng1 82. Be4 Ne2 83. g5 Ng3 84. Kf4 Ne2+ 85. Kg4 Nc3 86. Bf3 Nb5 87. h5 Nd6 88. h6+ Kh7 89. Kh5 Nc4 90. g6+ Kh8 91. g7+ 1-0

[Event "HUN-chT 1819"]
[Site "Hungary"]
[Date "2019.04.27"]
[Round "8.5"]
[White "Demjen, Mark"]
[Black "Erdos, Boglarka"]
[Result "0-1"]
[ECO "C92"]
[WhiteElo "1876"]
[BlackElo "2148"]
[PlyCount "70"]
[EventDate "2018.11.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "DVTK"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Bb7 10. d4 Na5 11. Bc2 Nd7 12. Nbd2 Re8 13. Nf1 Bf6 14. dxe5 dxe5 15. Ne3 Nb6 16. Qe2 Nac4 17. Nxc4 Nxc4 18. a4 Nd6 19. Nd2 c5 20. axb5 axb5 21. Rxa8 Qxa8 22. Nf1 b4 23. f3 bxc3 24. bxc3 Qa5 25. Rd1 Nb5 26. Bd2 Nc7 27. Ne3 Rd8 28. c4 Qa6 29. Nd5 Nxd5 30. exd5 Bxd5 31. Qd3 e4 32. fxe4 Bxc4 33. Qf3 Be2 34. Qf5 Bxd1 35. Bxd1 Rxd2 0-1

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2019.03.31"]
[Round "10.11"]
[White "Lengyel, Andrea"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "A65"]
[WhiteElo "1807"]
[BlackElo "1838"]
[PlyCount "60"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Dunaharaszti II"]
[BlackTeam "Penzugyor II"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. Bd3 Bg7 8. Nge2 0-0 9. f3 Re8 10. Be3 Nbd7 11. h3 Ne5 12. 0-0 Nxd3 13. Qxd3 Nd7 14. f4 Qb6 15. Rab1 f5 16. Ng3 Nf6 17. exf5 Nh5 18. Bf2 Nxg3 19. Qxg3 Bxf5 20. Rbc1 Qxb2 21. Rfd1 Bc2 22. Be1 Bxd1 23. Rb1 Rxe1+ 24. Qxe1 Qxc3 25. Qe6+ Kh8 26. Rxd1 Qf6 27. Qd7 Qxf4 28. Re1 Bd4+ 29. Kh1 Be5 30. Kg1 Rf8 0-1

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2019.03.10"]
[Round "9.10"]
[White "Fodor, Balazs"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "2136"]
[BlackElo "1838"]
[PlyCount "37"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Budapest MTK"]
[BlackTeam "Penzugyor II"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg4 8. h3 Bxf3 9. Qxf3 Bg7 10. Bb5+ Nfd7 11. Bf4 a6 12. Bxd7+ Qxd7 13. Qg3 Ke7 14. e5 dxe5 15. Bxe5 f6 16. Bf4 Kf7 17. 0-0 Qf5 18. Bxb8 Raxb8 19. Qc7+ 1-0

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2019.02.24"]
[Round "8.12"]
[White "Demjen, Mark"]
[Black "Kis, Bela"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "1838"]
[BlackElo "2054"]
[PlyCount "67"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor II"]
[BlackTeam "Budapest Vasas"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 d6 2. d4 Nf6 3. Bd3 g6 4. Ne2 Bg7 5. 0-0 0-0 6. c4 c5 7. d5 e6 8. Nbc3 exd5 9. exd5 Na6 10. h3 Nb4 11. Bf4 Nxd3 12. Qxd3 Bf5 13. Qf3 Qb6 14. g4 Bd7 15. Rab1 Ne8 16. Rfe1 Qa6 17. b3 b5 18. Ng3 bxc4 19. Re7 cxb3 20. Rxd7 bxa2 21. Ra1 Qc8 22. Re7 Qd8 23. Ree1 Qh4 24. Rxa2 Qxh3 25. Nce4 f5 26. gxf5 Rxf5 27. Ng5 Rxf4 28. Qxf4 Qd7 29. Ne6 Bf6 30. Ne4 Be7 31. Rae2 a5 32. Qh6 Ra7 33. N4g5 Bxg5 34. Qf8# 1-0

[Event "HUN-chT 1819"]
[Site "Hungary"]
[Date "2019.02.10"]
[Round "5.5"]
[White "Demjen, Mark"]
[Black "Aczel, Gergely"]
[Result "0-1"]
[ECO "B55"]
[WhiteElo "1876"]
[BlackElo "2549"]
[PlyCount "72"]
[EventDate "2018.11.17"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Aquaprofit"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be7 7. c4 a5 8. Be3 a4 9. Nc1 0-0 10. Nc3 Qa5 11. Qd2 Nc6 12. Bd3 Bd8 13. Nd5 Nxd5 14. cxd5 Nd4 15. Bxd4 exd4 16. Qxa5 Bxa5+ 17. Kd1 f5 18. Ne2 fxe4 19. Bxe4 Bf5 20. Ng3 Bxe4 21. Nxe4 Rf5 22. Nxd6 Rxd5 23. Ne4 Rb5 24. Rb1 d3 25. Rf1 Rd8 26. b3 Kf7 27. Nd2 Rc8 28. Rf2 Bb6 29. Ne4 Bxf2 30. Nd6+ Ke6 31. Nxb5 Be3 32. Na3 axb3 33. axb3 b5 34. Nxb5 Rc2 35. Ra1 Rxg2 36. Ra6+ Ke5 0-1

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2019.01.27"]
[Round "6.12"]
[White "Demjen, Mark"]
[Black "Nandin, Erdene Davaadembere"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "1838"]
[BlackElo "1494"]
[PlyCount "109"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor II"]
[BlackTeam "Debrecen Kwizda"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 Nc6 3. c4 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 e5 7. Nb3 Be7 8. Be2 0-0 9. 0-0 Be6 10. Be3 Rc8 11. f3 a6 12. Qd2 Na5 13. Nxa5 Qxa5 14. Nd5 Qd8 15. Nxf6+ Bxf6 16. Qb4 Qc7 17. Rac1 Be7 18. Qd2 f5 19. exf5 Rxf5 20. Bd3 Rf6 21. Be4 Bf5 22. Qd5+ Be6 23. Qxb7 Qxb7 24. Bxb7 Rxc4 25. b3 Rxc1 26. Rxc1 a5 27. Bc6 Rf8 28. Ba4 d5 29. Rc7 Bb4 30. Rc2 d4 31. Bd2 d3 32. Rb2 Rc8 33. Bxb4 axb4 34. Rd2 Bf5 35. Kf2 Rc5 36. g4 Bg6 37. Bd7 e4 38. Be6+ Kf8 39. fxe4 Bxe4 40. Bc4 Rg5 41. h3 Ra5 42. Ke3 Re5 43. Bxd3 Bxd3+ 44. Kxd3 Re1 45. Kc4 Rh1 46. Kxb4 Rxh3 47. a4 Rh4 48. Rd4 h5 49. a5 hxg4 50. a6 Ke7 51. a7 Rh8 52. Rxg4 Kf7 53. Kb5 Re8 54. Ra4 Re5+ 55. Kb4 1-0

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.30"]
[Round "7"]
[White "Demjen, Mark"]
[Black "Kovacsy, Barnabas"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1898"]
[BlackElo "2057"]
[PlyCount "54"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nd2 d5 4. Ngf3 Bg7 5. e3 0-0 6. Be2 c5 7. c3 Nc6 8. 0-0 h6 9. h3 Nd7 10. e4 dxe4 11. Nxe4 cxd4 12. cxd4 Nb6 13. Be3 Nd5 14. Qd2 Nxe3 15. fxe3 b6 16. Bc4 Bb7 17. Nh4 e6 18. Qf2 Nxd4 19. Nf6+ Bxf6 20. Qxf6 Qxf6 21. Rxf6 Nc2 22. Rc1 Nxe3 23. Bxe6 Kg7 24. Rxf7+ Rxf7 25. Bxf7 Kxf7 26. Rc7+ Kf6 27. Rxb7 g5 1/2-1/2

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.30"]
[Round "6"]
[White "Virag, Balint"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1994"]
[BlackElo "1898"]
[PlyCount "84"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 d6 7. c3 0-0 8. h3 b5 9. Bc2 d5 10. d4 exd4 11. e5 Ne4 12. cxd4 Nb4 13. Bb3 c5 14. a3 Nc6 15. Nc3 Nxc3 16. bxc3 c4 17. Bc2 Rb8 18. Bd2 a5 19. Nh2 b4 20. axb4 axb4 21. f4 Qb6 22. Kh1 f5 23. g4 b3 24. Bxf5 Rxf5 25. gxf5 Bxf5 26. Nf3 b2 27. Rb1 Ra8 28. Qe2 Bxb1 29. Rxb1 Ra1 30. Qd1 Qa5 31. Be1 Rxb1 32. Qxb1 Qa1 33. Nd2 Na5 34. Kg2 Nb3 35. Qf5 Qxe1 36. Qe6+ Kf8 37. Qc8+ Kf7 38. Qf5+ Bf6 39. Qd7+ Kg6 40. f5+ Kh6 41. exf6 Qxd2+ 42. Kg3 Qg5+ 0-1

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.29"]
[Round "5"]
[White "Demjen, Mark"]
[Black "Kormendy, Gyorgy"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1898"]
[BlackElo "1557"]
[PlyCount "71"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 c6 3. c4 g6 4. Bd3 Bg7 5. Ne2 Nd7 6. Nbc3 c5 7. d5 Ne5 8. 0-0 Nf6 9. f4 Nxd3 10. Qxd3 0-0 11. h3 a6 12. a4 b6 13. Be3 Bd7 14. Bf2 Qc8 15. Bg3 h6 16. Bh2 Kh7 17. e5 Ng8 18. g4 f5 19. e6 Be8 20. gxf5 gxf5 21. Rf2 Bg6 22. Rg2 Qe8 23. Kh1 Nf6 24. Rag1 Ne4 25. Nxe4 fxe4 26. Qg3 Rf6 27. f5 Qxa4 28. Nf4 Qxc4 29. Nxg6 Qd3 30. Nxe7 Qxg3 31. Rxg3 Bh8 32. Rg6 Re8 33. Bxd6 Rxe7 34. Bxe7 Rxf5 35. d6 Rh5 36. h4 1-0

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.29"]
[Round "4"]
[White "Gruz, Janos"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "E33"]
[WhiteElo "1702"]
[BlackElo "1898"]
[PlyCount "71"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6 5. Nf3 d6 6. a3 Bxc3+ 7. bxc3 h6 8. e4 0-0 9. Bd3 e5 10. 0-0 Bg4 11. Be3 Qe7 12. Nd2 Nh5 13. f3 Bd7 14. g3 Bh3 15. Rf2 f5 16. exf5 exd4 17. Bxd4 Nxd4 18. cxd4 Qf6 19. Nb3 Rae8 20. Qd2 Bxf5 21. Rd1 Bxd3 22. Qxd3 Qg5 23. Nd2 Re3 24. Qf1 Rxa3 25. Qg2 Qe3 26. Nf1 Qb3 27. Re1 Qxc4 28. Nd2 Qxd4 29. Kh1 Ra1 30. Qf1 Rxe1 31. Qxe1 Nf6 32. Kg2 Re8 33. Qb1 Qd5 34. Qg6 Re3 35. Qc2 Ng4 36. Nf1 0-1

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.28"]
[Round "3"]
[White "Demjen, Mark"]
[Black "Spanos, Nomikos"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "1898"]
[BlackElo "1801"]
[PlyCount "76"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 d6 8. c3 Na5 9. Bc2 c5 10. h3 0-0 11. d4 Qc7 12. d5 Re8 13. Nbd2 Bf8 14. Nf1 g6 15. b3 Bg7 16. Ng3 c4 17. b4 Nb7 18. Be3 Bd7 19. Rc1 a5 20. a3 axb4 21. axb4 Ra3 22. Bb1 Rea8 23. Qd2 Qd8 24. Rf1 Qf8 25. Ne1 h5 26. f4 exf4 27. Bxf4 Qe8 28. Nf3 R8a6 29. Bh6 Bh8 30. Qg5 Nh7 31. Qh4 Rxc3 32. Rxc3 Bxc3 33. Ng5 Bd4+ 34. Kh1 Nd8 35. Nxh5 Qe7 36. Nf4 Bf6 37. Nxg6 fxg6 38. Bf8 Nxf8 0-1

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.28"]
[Round "2"]
[White "Karacsonyi, Gellert"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2195"]
[BlackElo "1898"]
[PlyCount "101"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 Ne7 9. Re1 Ng6 10. d4 Bd6 11. hxg4 hxg4 12. Nh2 Rxh2 13. Qxg4 Rh4 14. Qf5 exd4 15. Nf3 Rh7 16. Bg5 Qe6 17. Qxe6+ fxe6 18. Nxd4 Kf7 19. Nf3 Rh5 20. c3 Bf4 21. Bxf4 Nxf4 22. g3 Ng6 23. Kg2 Rd8 24. Rad1 Rxd1 25. Rxd1 Ke7 26. a3 Rb5 27. Rd2 c5 28. Kf1 Rb6 29. Ke2 Rd6 30. e5 Rd5 31. c4 Rxe5+ 32. Nxe5 Nxe5 33. b3 Nc6 34. Ke3 e5 35. f4 exf4+ 36. Kxf4 a5 37. Kg5 Nd4 38. Kg6 Ke6 39. g4 Ke5 40. g5 Kf4 41. Rf2+ Ke3 42. Rf7 Nxb3 43. Kxg7 Nd2 44. g6 Nxc4 45. Kf6 Nd6 46. Re7+ Kd3 47. g7 c4 48. g8Q c3 49. Qd5+ Kc2 50. Re2+ Kc1 51. Qh1# 1-0

[Event "Budapest Karacsonyi op 10th"]
[Site "Budapest"]
[Date "2018.12.27"]
[Round "1"]
[White "Demjen, Mark"]
[Black "Peterfia, Ferenc"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1898"]
[BlackElo "1627"]
[PlyCount "45"]
[EventDate "2018.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 b6 2. d4 e6 3. Bd3 Bb7 4. Nf3 c5 5. c3 Nf6 6. Qe2 Be7 7. 0-0 0-0 8. Bg5 c4 9. Bc2 b5 10. a4 bxa4 11. Bxf6 Bxf6 12. Rxa4 d5 13. e5 Be7 14. Ne1 f5 15. exf6 Rxf6 16. Nf3 Bc6 17. Ra1 Qd6 18. Re1 Rh6 19. Ne5 Rh4 20. g3 Re4 21. Bxe4 dxe4 22. Nxc6 Qxc6 23. Qxe4 1-0

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2018.12.02"]
[Round "5.11"]
[White "Metaxasz, Vaszilisz"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "1993"]
[BlackElo "1838"]
[PlyCount "61"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Taban Spartacus"]
[BlackTeam "Penzugyor II"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. c4 e6 2. Nc3 Bb4 3. Nf3 Nf6 4. e3 0-0 5. Be2 Nc6 6. d4 Bxc3+ 7. bxc3 d6 8. Ba3 Re8 9. c5 dxc5 10. Bxc5 Ne4 11. Bb4 a5 12. Qc2 Nxf2 13. Kxf2 axb4 14. Bb5 Bd7 15. Bxc6 Bxc6 16. cxb4 Bxf3 17. gxf3 Qh4+ 18. Kg2 e5 19. d5 Ra6 20. Rhe1 e4 21. f4 Rea8 22. Kh1 Rxa2 23. Rxa2 Qxe1+ 24. Kg2 Rxa2 25. Qxa2 h5 26. d6 cxd6 27. Qc2 Qxe3 28. Qc8+ Kh7 29. Qf5+ Kh6 30. Qg5+ Kh7 31. Qf5+ 1/2-1/2

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2018.11.18"]
[Round "4.12"]
[White "Fekete, Agnes"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1954"]
[BlackElo "1838"]
[PlyCount "80"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Kisujszallas"]
[BlackTeam "Penzugyor II"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. Nf3 Nc6 5. Nbd2 e5 6. dxe5 fxe5 7. e4 Be6 8. Bb5 Qf6 9. Qe2 Bd6 10. 0-0-0 0-0 11. Kb1 a6 12. Ba4 Na5 13. exd5 Bxd5 14. Ne4 Bxe4 15. Qxe4 Qf4 16. Qxf4 exf4 17. c3 b5 18. Bc2 Rfe8 19. Rd5 Re2 20. Rf1 Nc4 21. Rh5 Rae8 22. Bxh7+ Kg7 23. b3 Rb2+ 24. Kc1 Ba3 25. Bc2 Rxa2+ 26. Kb1 Rb2+ 27. Ka1 Rxc2 28. Nd4 Bb2+ 29. Ka2 Rd2 30. Nf3 Bxc3+ 31. Nxd2 Nxd2 32. Rc1 b4 33. Rf5 Re2 34. Rh1 Rxf2 35. h4 Ne4+ 36. Kb1 Nd2+ 37. Kc2 Rxg2 38. h5 Ne4+ 39. Kb1 Bb2 40. h6+ Kh8 0-1

[Event "HUN-chT2 Maroczy 1819"]
[Site "Hungary"]
[Date "2018.10.07"]
[Round "2.10"]
[White "Krizsany, Laszlo Sr"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "1859"]
[BlackElo "1838"]
[PlyCount "20"]
[EventDate "2018.09.23"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Kobanya Aquarena II"]
[BlackTeam "Penzugyor II"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 cxd4 5. exd4 d5 6. cxd5 exd5 7. Nf3 Nc6 8. Bb5 Bd7 9. 0-0 Be7 10. Bg5 a6 1/2-1/2

[Event "HUN-chT U18"]
[Site "Zalakaros"]
[Date "2018.07.29"]
[Round "7.6"]
[White "Kratzmajer, Akos Gyorgy"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "1972"]
[BlackElo "1747"]
[PlyCount "89"]
[EventDate "2018.07.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]
[WhiteTeam "Dunaujvaros Bastya"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxe4 6. Nxe4 Qe7 7. Nb5 Qxe4+ 8. Be2 Bb4+ 9. c3 Ba5 10. 0-0 0-0 11. Bd3 Qh4 12. g3 Qh3 13. Re1 d5 14. Bf1 Qd7 15. Bg2 Ne7 16. b4 Bb6 17. Bf4 Ng6 18. Nd4 Nxf4 19. gxf4 c6 20. Qh5 Qd6 21. Re5 f6 22. Re3 Bxd4 23. cxd4 Qxf4 24. Rg3 Bf5 25. Bh3 Bxh3 26. Rxh3 Qg5+ 27. Qxg5 fxg5 28. Re1 Rae8 29. Rhe3 Rxe3 30. Rxe3 Kf7 31. Kg2 Re8 32. Rf3+ Kg6 33. a3 Re4 34. Rf8 Rxd4 35. Rb8 Rd3 36. a4 Rb3 37. Rxb7 a5 38. b5 cxb5 39. Rxb5 Rxb5 40. axb5 a4 41. b6 a3 42. b7 a2 43. b8Q a1Q 44. Qd6+ Qf6 45. Qxd5 1/2-1/2

[Event "HUN-chT U18"]
[Site "Zalakaros"]
[Date "2018.07.27"]
[Round "4.6"]
[White "Juhasz, Adam"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1929"]
[BlackElo "1747"]
[PlyCount "83"]
[EventDate "2018.07.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]
[WhiteTeam "Zsambek"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. Nf3 c5 3. c3 g6 4. Bf4 Bg7 5. e3 0-0 6. Bd3 d6 7. 0-0 Nc6 8. Bg3 Re8 9. Qc2 e5 10. dxe5 dxe5 11. e4 Qe7 12. Nbd2 Nh5 13. Rfe1 Qf8 14. Bc4 Be6 15. Bxe6 Rxe6 16. Nc4 h6 17. Rad1 b5 18. Ne3 Bh8 19. Nd5 Rc8 20. Rd2 f5 21. h3 f4 22. Bh2 g5 23. a4 bxa4 24. Qxa4 Rg6 25. Qc4 Kh7 26. Ra1 Bf6 27. Ra6 g4 28. hxg4 Rxg4 29. Nxf6+ Qxf6 30. Rd7+ Kh8 31. Qf7 Qxf7 32. Rxf7 Rg6 33. Rd7 Rcg8 34. Nh4 Re6 35. Rd5 Rc8 36. Rxc5 Nf6 37. f3 Nd7 38. Rd5 Nb6 39. Rd1 Nc4 40. b4 Ne3 41. Rd2 Nc4 42. Rd7 1/2-1/2

[Event "HUN-chT U18"]
[Site "Zalakaros"]
[Date "2018.07.26"]
[Round "1.5"]
[White "Demjen, Mark"]
[Black "Forgacs, Attila Jr"]
[Result "0-1"]
[ECO "C74"]
[WhiteElo "1747"]
[BlackElo "1911"]
[PlyCount "108"]
[EventDate "2018.07.26"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "CBM 185 Extra"]
[Source "ChessBase"]
[SourceDate "2018.07.29"]
[SourceVersion "1"]
[SourceVersionDate "2018.07.29"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Atomeromu"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. 0-0 Bd3 8. Re1 Be7 9. Qb3 b5 10. Qd5 Qd7 11. Qxd3 bxa4 12. Qc2 Nf6 13. d3 0-0 14. Nbd2 Rad8 15. Qxa4 Nh5 16. Nf1 Rf7 17. Ng3 Nxg3 18. hxg3 Rdf8 19. Be3 d5 20. Rad1 a5 21. Re2 Qe8 22. Qb3 Qd7 23. d4 Rb8 24. Nxe5 Qf5 25. Qxd5 Nxe5 26. Qxe5 Qd7 27. Bf4 Bd6 28. Qe3 Bxf4 29. gxf4 Rbf8 30. g3 Qg4 31. Rde1 Rxf4 32. Qe6+ Qxe6 33. Rxe6 Rxf2 34. R6e2 R2f3 35. Kg2 R3f7 36. Rd1 Rd8 37. Rd3 Rfd7 38. Rde3 Kf7 39. Rf2+ Kg8 40. Re5 Ra8 41. Rff5 a4 42. Ra5 Rxa5 43. Rxa5 Re7 44. Kf3 Rf7+ 45. Ke3 Re7+ 46. Kd3 Re1 47. Rxa4 Rg1 48. Ra7 Rxg3+ 49. Ke4 h5 50. Rxc7 h4 51. Rc5 g6 52. Kf4 g5+ 53. Kf5 h3 54. Kg6 Kf8 0-1

[Event "HUN-chT2 Charousek 1718"]
[Site "Hungary"]
[Date "2018.05.06"]
[Round "9.10"]
[White "Demjen, Mark"]
[Black "Kurcsics, Erika"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1800"]
[BlackElo "1964"]
[PlyCount "88"]
[EventDate "2017.10.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Szentgotthard Alsoszolnok"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c5 2. Nf3 g6 3. c4 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. f3 Bd7 10. Rc1 a6 11. 0-0 Nxd4 12. Bxd4 Bc6 13. Qd2 Rb8 14. Rfd1 Nd7 15. Be3 Re8 16. Bf1 Ne5 17. Qf2 Qc8 18. b4 Qe6 19. b5 Bd7 20. Nd5 Rbc8 21. h3 f5 22. bxa6 bxa6 23. Nb6 Rc7 24. c5 Bb5 25. Bxb5 axb5 26. cxd6 Rxc1 27. Rxc1 exd6 28. Nd5 Nd3 29. Nc7 Nxf2 30. Nxe6 Nxh3+ 31. gxh3 Rxe6 32. Bf4 fxe4 33. fxe4 Bd4+ 34. Kg2 Rxe4 35. Rc8+ Kf7 36. Kf3 d5 37. Rb8 Be5 38. Rb7+ Ke6 39. Bg5 b4 40. Rxh7 Rc4 41. Ra7 Rc3+ 42. Kg4 Rg3+ 43. Kh4 Rg2 44. Ra4 Kf5 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.04.15"]
[Round "13"]
[White "Kelemen, Szabolcs"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1741"]
[BlackElo "1753"]
[PlyCount "104"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Barcza GSC"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. 0-0 0-0 7. Re1 Be6 8. Bb3 h6 9. Bc2 d5 10. exd5 Nxd5 11. Qe2 Bd6 12. h3 f5 13. b4 a6 14. a3 Nde7 15. Nbd2 Ng6 16. Nf1 Qd7 17. c4 Rae8 18. c5 Be7 19. Bb2 Bf6 20. Qd2 e4 21. Bxf6 exf3 22. Bb2 fxg2 23. Nh2 f4 24. Qc3 Bxh3 25. d4 Bf5 26. Rxe8 Rxe8 27. d5 Nce5 28. Bxf5 Qxf5 29. Re1 f3 30. Re3 Nf4 31. Nxf3 Ne2+ 32. Rxe2 Nxf3+ 33. Qxf3 Qxf3 34. Rxe8+ Kf7 35. Re3 Qxd5 36. Rg3 g6 37. Rxg2 Qe4 38. Kh2 Ke6 39. Rg3 Kd5 40. Bc1 h5 41. Be3 Kc4 42. Kg1 Kb5 43. Kh2 Ka4 44. Bg5 h4 45. Re3 Qg4 46. Bd8 Qf4+ 47. Kg2 g5 48. Be7 Qf5 49. Kg1 h3 50. Rg3 g4 51. Bd8 Qe4 52. Rc3 Qg2# 0-1

[Event "HUN-chT2 Charousek 1718"]
[Site "Hungary"]
[Date "2018.03.25"]
[Round "8.12"]
[White "Felde, Bence"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "E40"]
[WhiteElo "1938"]
[BlackElo "1746"]
[PlyCount "79"]
[EventDate "2017.10.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Aquaprofit Nagykanizsa II"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. Bd3 d6 6. Nge2 e5 7. d5 Bxc3+ 8. Nxc3 Ne7 9. Qc2 Nd7 10. 0-0 Nc5 11. Be2 a5 12. e4 0-0 13. f4 exf4 14. Bxf4 Ng6 15. Bg3 Re8 16. Rae1 Qg5 17. Bf3 h5 18. Nb5 h4 19. Bf2 Na6 20. Be3 Qe7 21. Qd2 Ne5 22. Bg5 f6 23. Bxh4 Nxc4 24. Qc3 Ne5 25. Bh5 Rf8 26. Nd4 g6 27. Bd1 Nc5 28. Bc2 Rf7 29. Nf3 Bd7 30. Nxe5 Qxe5 31. Rxf6 Qxc3 32. bxc3 Rxf6 33. Bxf6 Rf8 34. Bd4 Ba4 35. Bxa4 Nxa4 36. e5 dxe5 37. Rxe5 Nb2 38. Re6 Kh7 39. Re7+ Kh6 40. Bg7+ 1-0

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.03.18"]
[Round "12"]
[White "Saar, Patrik"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1753"]
[BlackElo "1753"]
[PlyCount "67"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Aquarena III"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nf3 Nd7 7. c3 Ne7 8. Be3 Qb6 9. b3 c5 10. 0-0 Rc8 11. Nbd2 Nf5 12. Rac1 Be7 13. Bf4 h5 14. Rfe1 0-0 15. h3 h4 16. g4 hxg3 17. fxg3 cxd4 18. cxd4 Ba3 19. Rxc8 Rxc8 20. g4 Ne7 21. h4 Qb4 22. Nb1 Bb2 23. Bd2 Qb6 24. Bc3 Bxc3 25. Nxc3 Nc6 26. h5 Nb4 27. Qd2 Qa6 28. Re3 b5 29. Qh2 Qb6 30. h6 Nxe5 31. h7+ Kh8 32. Nxe5 Rc7 33. Ne2 Nc2 34. Rc3 1-0

[Event "HUN-chT 1718"]
[Site "Hungary"]
[Date "2018.03.04"]
[Round "7.12"]
[White "Karacsonyi, Kata"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "1752"]
[BlackElo "1705"]
[PlyCount "92"]
[EventDate "2017.11.25"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Kobanya Aquarena"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Bxc6 Nxc6 6. c3 Be7 7. d4 d6 8. h3 0-0 9. Nbd2 f5 10. dxe5 dxe5 11. exf5 Rxf5 12. Qb3+ Kh8 13. Ne4 Qd3 14. Neg5 h6 15. Rd1 Qb5 16. Qxb5 axb5 17. Ne4 Be6 18. a3 Rd8 19. Rxd8+ Bxd8 20. Nc5 Bd5 21. Nxb7 Be7 22. b4 e4 23. Ne1 Bf6 24. Bb2 Bh4 25. g3 e3 26. fxe3 Bxg3 27. Nc5 Bf2+ 28. Kf1 Bxe3+ 29. Ke2 Re5 30. Ncd3 Bc4 31. Nf3 Re7 32. Nfe1 Ne5 33. Rd1 Bg5 34. Kf2 Bh4+ 35. Kg2 Nxd3 36. Nxd3 Bxd3 37. Rxd3 Re2+ 38. Kf3 Rxb2 39. Rd7 Rb3 40. Rxc7 Rxa3 41. Rc5 Bf6 42. Rxb5 Rxc3+ 43. Kg4 Kh7 44. Rb7 Kg6 45. b5 h5+ 46. Kf4 Rxh3 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.02.25"]
[Round "10"]
[White "Csaszar, Gyula"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1966"]
[BlackElo "1753"]
[PlyCount "83"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Budapest EAC II"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Be3 Bf5 7. Rc1 e6 8. c5 Be7 9. a3 0-0 10. Nf3 Re8 11. Bb5 Bg4 12. 0-0 a6 13. Ba4 Ne4 14. h3 Bh5 15. b4 Bf6 16. Qd3 Bg6 17. Qe2 Re7 18. Rfd1 Nxc3 19. Rxc3 e5 20. Bxc6 bxc6 21. dxe5 Bxe5 22. Nxe5 Rxe5 23. Qd2 Qh4 24. Bf4 Re4 25. Bg5 Qh5 26. g4 Rxg4+ 27. hxg4 Qxg4+ 28. Rg3 Qh5 29. Kg2 f6 30. Bf4 Re8 31. Re1 Rxe1 32. Qxe1 Qf5 33. Qe3 Bf7 34. Qe7 h5 35. Bd6 Bg6 36. Qe2 h4 37. Rh3 Qg5+ 38. Kh2 Bf5 39. Re3 h3 40. Rg3 Qc1 41. Qe8+ Kh7 42. Qh5+ 1-0

[Event "HUN-chT2 Charousek 1718"]
[Site "Hungary"]
[Date "2018.02.18"]
[Round "6.12"]
[White "Demjen, Mark"]
[Black "Kun, Balint"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1735"]
[BlackElo "1685"]
[PlyCount "60"]
[EventDate "2017.10.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor"]
[BlackTeam "Balatonfuered"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. Bf4 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 Nc6 7. d5 Nb8 8. h4 e5 9. Be3 a5 10. Qd2 Na6 11. h5 Nc5 12. Bf3 Bg4 13. hxg6 fxg6 14. 0-0-0 Bxf3 15. gxf3 Nh5 16. Nce2 a4 17. Bg5 Qd7 18. Qe3 b5 19. Ng3 Nf4 20. N1e2 bxc4 21. Nxf4 exf4 22. Bxf4 Qb5 23. e5 Nd3+ 24. Rxd3 cxd3 25. Ne4 Qc4+ 26. Kb1 Qc2+ 27. Ka1 Rab8 28. Qd4 Rxf4 29. Rb1 Bxe5 30. Qa7 Bxb2+ 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.02.11"]
[Round "9"]
[White "Forizs, Andras"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "A70"]
[WhiteElo "1850"]
[BlackElo "1753"]
[PlyCount "68"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "SENSE"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bd3 0-0 9. 0-0 Bg4 10. h3 Bxf3 11. Qxf3 Nbd7 12. Qd1 Re8 13. Re1 a6 14. a4 Rc8 15. Bf1 c4 16. Bf4 Nc5 17. Qc2 Qd7 18. Rad1 b5 19. axb5 axb5 20. f3 Nh5 21. Bh2 b4 22. Nb1 Na4 23. g4 Nxb2 24. gxh5 b3 25. Qf2 c3 26. Rc1 c2 27. Na3 Qa4 28. e5 Qxa3 29. hxg6 hxg6 30. f4 Nd1 31. Qd2 b2 32. Rexd1 cxd1Q 33. Rxd1 Rc1 34. Bd3 Qa1 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.02.04"]
[Round "8"]
[White "Demjen, Mark"]
[Black "Nagy, Ferenc3333"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "1753"]
[BlackElo "1947"]
[PlyCount "65"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor III"]
[BlackTeam "Siraly"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 g6 2. e4 Bg7 3. c4 e6 4. Nc3 Ne7 5. Be3 d5 6. e5 0-0 7. h4 dxc4 8. h5 Nf5 9. g4 Nxe3 10. fxe3 Qg5 11. Qe2 Bd7 12. Bg2 Bc6 13. Nh3 Qe7 14. hxg6 hxg6 15. g5 Rd8 16. 0-0-0 b5 17. Bxc6 Nxc6 18. Ne4 Nb4 19. Nf6+ Kf8 20. Kb1 c5 21. Nf4 Qc7 22. Rhf1 Ke7 23. a3 a5 24. d5 Qxe5 25. axb4 Qxg5 26. d6+ Rxd6 27. Rxd6 Bxf6 28. Rb6 axb4 29. Rxb5 c3 30. Rb7+ Kf8 31. Qd3 cxb2 32. Nxe6+ fxe6 33. Qd6+ 1-0

[Event "HUN-chT2 Charousek 1718"]
[Site "Hungary"]
[Date "2018.01.28"]
[Round "5.12"]
[White "Csiszar, Viktoria"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "1933"]
[BlackElo "1721"]
[PlyCount "126"]
[EventDate "2017.10.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Komlo Banyasz"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 Bxd3 8. Qxd3 e6 9. 0-0 Ngf6 10. Ng5 Be7 11. Re1 0-0 12. Bd2 c5 13. Rxe6 fxe6 14. Nxe6 Qb6 15. Re1 Rfe8 16. Nf5 Bf8 17. d5 c4 18. Qg3 g6 19. d6 Kf7 20. Ng5+ Kg8 21. Ne7+ Bxe7 22. dxe7 Qc5 23. Ne6 Qxe7 24. f4 Qd6 25. f5 Qxg3 26. hxg3 gxf5 27. Bc3 Re7 28. Bb4 Rae8 29. Bxe7 Rxe7 30. Kf1 Ne4 31. Nd4 Nxg3+ 32. Kf2 Rxe1 33. Kxe1 Nc5 34. Kf2 Nce4+ 35. Kf3 Kf7 36. Nxf5 Nxf5 37. Kxe4 Ke6 38. a4 h5 39. c3 Kf6 40. Kf4 Nd6 41. a5 a6 42. Kg3 Kg5 43. Kf3 Nf5 44. Ke4 Kg4 45. Ke5 h4 46. Ke6 Kg3 47. Kd7 Kxg2 48. Kc7 h3 49. Kxb7 h2 50. Kxa6 h1Q 51. Kb5 Ne3 52. a6 Kf2 53. Kb6 Qa8 54. Ka5 Kf3 55. Kb5 Ke4 56. Kb6 Kd5 57. Kb5 Qc6+ 58. Ka5 Qc5+ 59. Ka4 Nd1 60. b4 Qa7 61. b5 Kc5 62. Ka3 Kxb5 63. Ka2 Qf2+ 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.01.21"]
[Round "7"]
[White "Dlauchy, Peter"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "1716"]
[BlackElo "1753"]
[PlyCount "39"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Budapest Vasas II"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. 0-0 d6 6. Re1 Bg4 7. Qd3 Ne5 8. Nxe5 dxe5 9. Qb3 Qd7 10. Qxb7 Qc8 11. Qb5+ c6 12. Qxe5+ Be7 13. Qxd4 0-0 14. Bg5 Rd8 15. Qe3 h6 16. Bh4 g5 17. Bg3 Qb7 18. Qb3 Qd7 19. Nc3 Rab8 20. Bxb8 1-0

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2018.01.14"]
[Round "6"]
[White "Vinnay, Istvan"]
[Black "Demjen, Mark"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "1689"]
[BlackElo "1753"]
[PlyCount "76"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Budapest Ujpest KSE"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. c4 e6 2. Nc3 Bb4 3. d4 Nf6 4. Nf3 Nc6 5. Bd2 d6 6. e3 0-0 7. Be2 e5 8. 0-0 Bg4 9. a3 Bxc3 10. Bxc3 e4 11. Nd2 Bd7 12. b4 a6 13. Qc2 Bf5 14. Qb2 Re8 15. Rfd1 Bg4 16. Bxg4 Nxg4 17. h3 Nh6 18. Qc2 f5 19. Nf1 g5 20. b5 Ne7 21. Qb3 Qd7 22. d5 Ng6 23. a4 f4 24. bxa6 bxa6 25. c5 f3 26. Ng3 fxg2 27. Kxg2 Nh4+ 28. Kh2 Qf7 29. Ra2 Qf3 30. Rg1 g4 31. Qd1 Rf8 32. Qd4 N6f5 33. Qh8+ Kf7 34. Qxh7+ Ke8 35. Qh5+ Kd8 36. hxg4 Nxg3 37. Rxg3 Qxf2+ 38. Rxf2 Rxf2+ 1-0

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2017.12.10"]
[Round "5"]
[White "Farkas, Otto Jr"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "C89"]
[WhiteElo "1638"]
[BlackElo "1753"]
[PlyCount "50"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Palota Sakk"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. c3 0-0 7. Re1 b5 8. Bb3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. Bxd5 cxd5 13. d4 Bd6 14. Re3 f5 15. Qf3 Bb8 16. Nd2 Ra7 17. Nb3 g5 18. Nc5 f4 19. Re1 g4 20. Qd1 Qh4 21. Bxf4 Rxf4 22. g3 Qh5 23. gxf4 Bxf4 24. Kf1 Qh3+ 25. Kg1 Bxh2+ 0-1

[Event "HUN-chT2 Charousek 1718"]
[Site "Hungary"]
[Date "2017.12.03"]
[Round "3.12"]
[White "Nemeth, Noemi Anna"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "E28"]
[WhiteElo "1789"]
[BlackElo "1653"]
[PlyCount "50"]
[EventDate "2017.10.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Paks ASE II"]
[BlackTeam "Penzugyor"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d6 5. a3 Bxc3+ 6. bxc3 0-0 7. Bd3 Nc6 8. Ne2 e5 9. Qc2 Qe8 10. f3 g6 11. 0-0 Nh5 12. e4 f5 13. exf5 Bxf5 14. Be4 Ng7 15. Bh6 exd4 16. Bxf5 Nxf5 17. Bxf8 Qe3+ 18. Rf2 d3 19. Qb3 dxe2 20. c5+ Kxf8 21. Re1 Nfd4 22. Qxb7 Rb8 23. Qxc7 Rb1 24. Qxd6+ Ne7 25. Qf6+ Kg8 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2017.11.19"]
[Round "4"]
[White "Demjen, Mark"]
[Black "Juhasz, Andras"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1753"]
[BlackElo "1868"]
[PlyCount "64"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor III"]
[BlackTeam "Mattolda"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. a3 a5 7. Bd3 Nf5 8. Bc2 Qb6 9. g4 Nh6 10. h3 Be7 11. b3 Bd7 12. Ra2 Rc8 13. Be3 Na7 14. Qd2 cxd4 15. cxd4 Bb5 16. Nc3 Qc6 17. Ne2 b6 18. 0-0 Bxa3 19. Bxh6 Bb4 20. Qd1 gxh6 21. Kh2 Bxe2 22. Qxe2 Nb5 23. Bd3 Nc3 24. Qc2 Ke7 25. Raa1 Ne4 26. Qe2 Ng5 27. Nxg5 hxg5 28. Qe3 h6 29. f4 Qc3 30. fxg5 Qd2+ 31. Qxd2 Bxd2 32. gxh6 Rxh6 0-1

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2017.11.12"]
[Round "3"]
[White "Nagy, Laszlo"]
[Black "Demjen, Mark"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "1918"]
[BlackElo "1753"]
[PlyCount "72"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Fabulon"]
[BlackTeam "Penzugyor III"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. c4 e6 2. Nc3 Bb4 3. Qc2 Nc6 4. e3 a5 5. d4 Nf6 6. Nf3 d6 7. Bd3 e5 8. d5 Bxc3+ 9. bxc3 Nb8 10. 0-0 0-0 11. Ba3 Qe7 12. Nd2 Re8 13. f3 b6 14. Rae1 g6 15. Kh1 Nh5 16. g4 Ng7 17. Rg1 Nd7 18. Re2 Kh8 19. h4 Qxh4+ 20. Rh2 Qf6 21. Qd1 Kg8 22. Ne4 Qe7 23. Ng3 Nf6 24. Qe2 Bd7 25. Rh6 e4 26. Nxe4 Nxe4 27. Bxe4 Qg5 28. Qh2 Rxe4 29. Rxh7 Nh5 30. Rxh5 Qxe3 31. Rh8+ Kg7 32. Qh7+ Kf6 33. g5+ Ke7 34. fxe4 Qxe4+ 35. Rg2 Qe1+ 36. Rg1 Qe4+ 1/2-1/2

[Event "Budapest-chT1 Lilienthal 1718"]
[Site "Budapest"]
[Date "2017.10.15"]
[Round "2"]
[White "Demjen, Mark"]
[Black "Vecsernyes, Norbert"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1753"]
[BlackElo "1884"]
[PlyCount "58"]
[EventDate "2017.10.01"]
[EventType "team-tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Penzugyor III"]
[BlackTeam "Csepel"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "HUN"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Bd6 5. Bxd6 Qxd6 6. Bd3 Qb4+ 7. Nc3 Qxb2 8. Nb5 Qb4+ 9. Qd2 Qxd2+ 10. Kxd2 Na6 11. Rab1 Ke7 12. Nc3 b6 13. Ne5 Nd7 14. Nc6+ Kd6 15. Nxa7 Bb7 16. Nab5+ Ke7 17. e4 c6 18. Na3 Nab8 19. Rb3 c5 20. exd5 exd5 21. Re1+ Kd8 22. Nab5 Bc6 23. Nd6 Rf8 24. Bb5 cxd4 25. Bxc6 Nxc6 26. Nxd5 Rxa2 27. Re8+ Rxe8 28. Nxf7+ Kc8 29. Nd6+ Kd8 1/2-1/2

[Event "Budapest Gyorgy Memorial 2nd"]
[Site "Budapest"]
[Date "2017.10.14"]
[Round "5.4"]
[White "Demjen, Mark"]
[Black "Galuszka, Tomasz"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1753"]
[BlackElo "1934"]
[PlyCount "78"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. Nf3 e6 4. e3 c5 5. c3 Nc6 6. Bd3 cxd4 7. exd4 Bd6 8. Bxd6 Qxd6 9. 0-0 0-0 10. Re1 a6 11. a4 b6 12. Ne5 Bb7 13. f4 Na7 14. Qe2 b5 15. Nd2 b4 16. g4 Rac8 17. g5 Ne4 18. Bxe4 dxe4 19. Qe3 bxc3 20. bxc3 Nc6 21. Nxe4 Qd5 22. Ng4 Kh8 23. Rab1 Na5 24. Ne5 Qxe4 25. Qxe4 Bxe4 26. Rxe4 Nc4 27. Nxc4 Rxc4 28. Rb4 Rxc3 29. Rb6 g6 30. Rxa6 Rb8 31. Kf2 Rh3 32. Kg2 Ra3 33. Ra7 Rb2+ 34. Kf1 Rxh2 35. Kg1 Rd2 36. Re1 Kg8 37. a5 Rxd4 38. Ra8+ Kg7 39. Ra7 Ra2 0-1

[Event "Budapest Gyorgy Memorial 2nd"]
[Site "Budapest"]
[Date "2017.10.14"]
[Round "4.5"]
[White "Demjen, Mark"]
[Black "Giang, Tran Nam"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1753"]
[BlackElo "1607"]
[PlyCount "88"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c4 a6 4. Nc3 Nc6 5. Be2 Qc7 6. 0-0 Nf6 7. d4 cxd4 8. Nxd4 Bb4 9. f3 Nxd4 10. Be3 Nxe2+ 11. Nxe2 0-0 12. Kh1 d6 13. a3 Bc5 14. Bd2 Re8 15. b4 Ba7 16. Rc1 Bd7 17. Bf4 e5 18. Bg5 Kh8 19. Qb3 Rac8 20. a4 Be6 21. Rfe1 b5 22. Qa3 bxc4 23. Nc3 Nd7 24. a5 h6 25. Bd2 Rb8 26. g4 Bd4 27. h4 Bf2 28. Re2 Bxh4 29. Rh2 Bg3 30. Rh3 Bf4 31. Bxf4 exf4 32. Qb2 Qxa5 33. Rh5 Qxb4 34. Qd2 Ne5 35. Qxf4 Nd3 36. Qe3 Nxc1 37. g5 Qc5 38. Qd2 g6 39. Rxh6+ Kg7 40. Nd5 c3 41. Qf4 Qd4 42. Rh7+ Kxh7 43. Qh4+ Kg8 44. Nf6+ Kf8 0-1

[Event "Budapest Gyorgy Memorial 2nd"]
[Site "Budapest"]
[Date "2017.10.13"]
[Round "2.5"]
[White "Godovanchuk, Ilie"]
[Black "Demjen, Mark"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "1081"]
[BlackElo "1753"]
[PlyCount "106"]
[EventDate "2017.10.12"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "HUN"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 cxd4 5. exd4 d5 6. Nc3 Be7 7. Bd3 0-0 8. Qc2 Nc6 9. a3 dxc4 10. Bxc4 Nxd4 11. Nxd4 Qxd4 12. Be2 Bd7 13. Be3 Qe5 14. 0-0 Rac8 15. Rac1 Bd6 16. g3 Nd5 17. Qd2 Nxc3 18. Rxc3 Rxc3 19. Bd4 Rc2 20. Qxc2 Qxd4 21. Rd1 Qe5 22. Qd3 Bc6 23. Bf1 Qd5 24. Qxd5 Bxd5 25. Bg2 Bxg2 26. Kxg2 Rd8 27. b4 Kf8 28. f4 Ke7 29. Kf3 b6 30. h4 Bxb4 31. Rxd8 Kxd8 32. axb4 Kd7 33. Ke4 Kd6 34. Kd4 a5 35. b5 a4 36. Kc4 a3 37. Kb3 Kc5 38. Kxa3 Kxb5 39. Kb3 h5 40. Kc3 Ka4 41. Kb2 Kb4 42. Ka2 Kc3 43. Kb1 Kb3 44. Kc1 b5 45. Kb1 b4 46. Ka1 Kc2 47. f5 e5 48. f6 gxf6 49. g4 e4 50. gxh5 e3 51. h6 e2 52. h7 e1Q+ 53. Ka2 Qb1# 0-1

