[Event "South Region-ch U14"]
[Site "Neiva"]
[Date "2012.05.21"]
[Round "7.6"]
[White "Pena, Efrain Andres"]
[Black "Calderon Zuta, Nicolas"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1521"]
[PlyCount "68"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Bf5 5. Nf3 c6 6. h3 Nf6 7. d3 e6 8. Bd2 Nbd7 9. 0-0 Qc7 10. Qe2 0-0-0 11. a3 h6 12. b4 Nb6 13. Ne5 Nxc4 14. Nxc4 g5 15. Qe5 Qxe5 16. Nxe5 Rh7 17. a4 Nd5 18. b5 f6 19. Nf3 Bc5 20. bxc6 bxc6 21. Nxd5 Rxd5 22. Bc3 e5 23. Nd2 Bd4 24. Bxd4 Rxd4 25. Rad1 g4 26. Nb3 Rxa4 27. Ra1 Rxa1 28. Rxa1 gxh3 29. gxh3 Bxh3 30. Rxa7 Rxa7 31. Kh2 Bg4 32. Kg3 h5 33. f3 Bxf3 34. Kxf3 Rg7 0-1

[Event "South Region-ch U14"]
[Site "Neiva"]
[Date "2012.05.20"]
[Round "6.7"]
[White "Benavides, Nikolas Javier"]
[Black "Pena, Efrain Andres"]
[Result "0-1"]
[ECO "C62"]
[WhiteElo "1282"]
[PlyCount "32"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. Bxc6 Bxc6 7. dxe5 dxe5 8. Nxe5 Qxd1+ 9. Nxd1 Bxe4 10. Ne3 Bd6 11. N5c4 Bc5 12. 0-0 0-0-0 13. c3 Bd3 14. Rd1 Bxc4 15. Rxd8+ Rxd8 16. Nxc4 Rd1# 0-1

[Event "South Region-ch U14"]
[Site "Neiva"]
[Date "2012.05.20"]
[Round "5.7"]
[White "Pena, Efrain Andres"]
[Black "Alvarez Angel, Nelson Eduardo"]
[Result "0-1"]
[ECO "C49"]
[BlackElo "1312"]
[PlyCount "25"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. Bxc6 dxc6 6. Nxe5 Qe7 7. Nf3 Bxc3 8. dxc3 Qxe4+ 9. Qe2 Qxe2+ 10. Kxe2 Bf5 11. Nd4 0-0-0 12. Bg5 Rhe8+ 13. Kf3 0-1

[Event "South Region-ch U14"]
[Site "Neiva"]
[Date "2012.05.19"]
[Round "4.7"]
[White "Marin Rengifo, Andres Fernando"]
[Black "Pena, Efrain Andres"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1524"]
[PlyCount "31"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nc6 3. e3 e6 4. Nf3 Nf6 5. h3 Bb4+ 6. c3 Bd6 7. Bxd6 cxd6 8. Bb5 a6 9. Ba4 b5 10. Bb3 e5 11. dxe5 dxe5 12. 0-0 h6 13. Nbd2 0-0 14. Re1 Bf5 15. Bc2 Re8 16. Bxf5 1-0

[Event "South Region-ch U14"]
[Site "Neiva"]
[Date "2012.05.19"]
[Round "3.5"]
[White "Pena, Efrain Andres"]
[Black "Arismendi Polanco, Efrain Steven"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1693"]
[PlyCount "42"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bb5+ Nc6 5. Bxc6+ bxc6 6. d3 e6 7. Bf4 Be7 8. h3 0-0 9. 0-0 e5 10. Bg5 Be6 11. Qd2 Nh5 12. Bxe7 Qxe7 13. Rfe1 Nf4 14. a3 Qd7 15. b4 cxb4 16. axb4 Bxh3 17. Qe2 Nxe2+ 18. Rxe2 Qg4 19. Kf1 Qxg2+ 20. Ke1 Qg1+ 21. Kd2 Qxa1 0-1

[Event "South Region-ch U14"]
[Site "Neiva"]
[Date "2012.05.18"]
[Round "2.3"]
[White "Zuleta, Juan Carlos"]
[Black "Pena, Efrain Andres"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "1862"]
[PlyCount "27"]
[EventDate "2012.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. d4 Nc6 3. d5 Nd4 4. c3 Nb5 5. Bxb5 Nf6 6. Bg5 h6 7. Bxf6 gxf6 8. Qh5 Rh7 9. Qf5 Qe7 10. Qxh7 Qc5 11. Be2 d6 12. Bh5 Qc4 13. Qxf7+ Kd8 14. Qe8# 1-0

