[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "1.1"]
[White "Argote Heredia, Valentina"]
[Black "Morales, Jhon Alexander"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2150"]
[BlackElo "2400"]
[Annotator "ChessBase"]
[PlyCount "83"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:01:37]} 2. Nf3 {[%emt 0:01:53]} d6 {[%emt 0:01:44]} 3. d4 {[%emt 0:01:16]} cxd4 {[%emt 0:00:09]} 4. Nxd4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:24]} 5. Nc3 {[%emt 0:01:17]} a6 {[%emt 0:00:38]} 6. Be2 {[%emt 0:02:10]} e5 {[%emt 0:10:22]} 7. Nb3 {[%emt 0:03:57]} Be7 {[%emt 0:00:09]} 8. O-O {[%emt 0:03:51]} O-O {[%emt 0:00:52]} 9. Kh1 {[%emt 0:01:47]} b6 {[%emt 0:05:06]} 10. Bg5 {[%emt 0:04:40]} Nbd7 {[%emt 0:09:43]} 11. Nd5 {[%emt 0:06:36]} Nxd5 {[%emt 0:01:45]} 12. Qxd5 {[%emt 0:00:07]} Rb8 {[%emt 0:00:44]} 13. Bxe7 {[%emt 0:04:40]} Qxe7 {[%emt 0:03:58]} 14. Rad1 {[%emt 0:02:51]} Nf6 {[%emt 0:10:01]} 15. Qxd6 {[%emt 0:06:41]} Qxd6 {[%emt 0:00:27]} 16. Rxd6 {[%emt 0:00:05]} Nxe4 {[%emt 0:00:15]} 17. Rd5 {[%emt 0:00:05]} f6 {[%emt 0:03:07]} 18. f3 {[%emt 0:06:04]} Ng5 {[%emt 0:01:35]} 19. Rd2 {[%emt 0:00:56]} Be6 {[%emt 0:07:48]} 20. Rfd1 {[%emt 0:08:14]} Nf7 {[%emt 0:00:25]} 21. Nc1 {[%emt 0:03:04]} a5 {[%emt 0:01:09]} 22. Kg1 {[%emt 0:01:50]} Rfd8 {[%emt 0:05:34]} 23. Rxd8+ {[%emt 0:04:38]} Rxd8 {[%emt 0:01:41]} 24. Rxd8+ {[%emt 0:00:04]} Nxd8 {[%emt 0:00:09]} 25. Kf2 {[%emt 0:00:13]} Kf8 {[%emt 0:00:10]} 26. Ke3 {[%emt 0:03:29]} Ke7 {[%emt 0:01:19]} 27. Bd3 {[%emt 0:00:37]} g6 {[%emt 0:02:46]} 28. a3 {[%emt 0:02:56]} Kd6 {[%emt 0:01:17]} 29. Ne2 {[%emt 0:00:36]} Nc6 {[%emt 0:01:15]} 30. Nc3 {[%emt 0:00:55]} Nd4 {[%emt 0:03:25]} 31. Nb5+ {[%emt 0:02:07]} Nxb5 {[%emt 0:06:46]} 32. Bxb5 {[%emt 0:00:04]} Kc5 {[%emt 0:05:58]} 33. Bd3 {[%emt 0:03:21]} Bf7 {[%emt 0:03:47]} 34. f4 {[%emt 0:01:00]} Kd6 {[%emt 0:06:39]} 35. g3 {[%emt 0:01:35]} Kd5 {[%emt 0:00:48]} 36. Be4+ {[%emt 0:00:08]} Kd6 {[%emt 0:00:10]} 37. Bd3 {[%emt 0:00:04]} Kd5 {[%emt 0:01:28]} 38. Be4+ {[%emt 0:00:04]} Kd6 {[%emt 0:00:36]} 39. Bd3 {[%emt 0:00:04]} Bg8 {[%emt 0:02:00]} 40. Bb5 {[%emt 0:00:00]} Be6 {[%emt 0:00:00]} 41. Bd3 {[%emt 0:02:34]} Kd5 {[%emt 0:00:49]} 42. Be4+ {[%emt 0:00:07]} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "1.2"]
[White "Mateus, Alejandro"]
[Black "Palencia Morales, Wilson Guillermo"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2353"]
[BlackElo "2340"]
[Annotator "ChessBase"]
[PlyCount "145"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:02:51]} 2. Nf3 {[%emt 0:00:02]} Nc6 {[%emt 0:00:05]} 3. Bb5 {[%emt 0:00:36]} Nf6 {[%emt 0:00:08]} 4. d3 {[%emt 0:01:28]} Bc5 {[%emt 0:00:08]} 5. c3 {[%emt 0:01:55]} d5 {[%emt 0:00:09]} 6. Nxe5 {[%emt 0:08:59]} O-O {[%emt 0:00:24]} 7. Bxc6 {[%emt 0:03:33]} bxc6 {[%emt 0:00:48]} 8. d4 {[%emt 0:03:13]} Bb6 {[%emt 0:00:25]} 9. exd5 {[%emt 0:04:18]} cxd5 {[%emt 0:10:31]} 10. O-O {[%emt 0:01:15]} Qd6 {[%emt 0:06:32]} 11. Re1 {[%emt 0:06:48]} Ne4 {[%emt 0:03:43]} 12. Nd2 {[%emt 0:04:02]} Nxd2 {[%emt 0:01:06]} 13. Bxd2 {[%emt 0:03:19]} f6 {[%emt 0:00:08]} 14. Nd3 {[%emt 0:01:13]} g5 {[%emt 0:03:14]} 15. Qf3 {[%emt 0:05:45]} c6 {[%emt 0:01:07]} 16. Re3 {[%emt 0:06:30]} Bc7 {[%emt 0:04:14]} 17. g3 {[%emt 0:00:20]} Qd7 {[%emt 0:08:34]} 18. Qh5 {[%emt 0:07:12]} Qh3 {[%emt 0:04:42]} 19. Qxh3 {[%emt 0:00:26]} Bxh3 {[%emt 0:00:07]} 20. Rae1 {[%emt 0:03:18]} Bd6 {[%emt 0:01:26]} 21. f3 {[%emt 0:02:58]} Bf5 {[%emt 0:02:24]} 22. g4 {[%emt 0:09:05]} Bd7 {[%emt 0:01:14]} 23. R1e2 {[%emt 0:04:34]} h5 {[%emt 0:01:19]} 24. gxh5 {[%emt 0:01:22]} Kf7 {[%emt 0:00:22]} 25. Be1 {[%emt 0:02:21]} Rh8 {[%emt 0:00:06]} 26. Bg3 {[%emt 0:03:12]} Bf8 {[%emt 0:00:10]} 27. Bc7 {[%emt 0:04:03]} Rxh5 {[%emt 0:01:48]} 28. Ba5 {[%emt 0:02:00]} Bf5 {[%emt 0:00:55]} 29. Bb4 {[%emt 0:02:00]} Bg7 {[%emt 0:19:58]} 30. Nc5 {[%emt 0:03:21]} a5 {[%emt 0:00:34]} 31. Ba3 {[%emt 0:00:06]} Bf8 {[%emt 0:05:54]} 32. Nb7 {[%emt 0:00:50]} Bxa3 {[%emt 0:04:23]} 33. bxa3 {[%emt 0:00:06]} Rh3 {[%emt 0:01:47]} 34. Nc5 {[%emt 0:04:14]} Rb8 {[%emt 0:01:22]} 35. Nb3 {[%emt 0:00:20]} a4 {[%emt 0:01:52]} 36. Nc5 {[%emt 0:00:06]} Kg6 {[%emt 0:03:19]} 37. Kg2 {[%emt 0:01:35]} Rh7 {[%emt 0:02:38]} 38. Re8 {[%emt 0:00:48]} Bh3+ {[%emt 0:02:28]} 39. Kg3 {[%emt 0:00:24]} Rb1 {[%emt 0:00:18]} 40. Re1 {[%emt 0:00:00]} Rb2 {[%emt 0:00:00]} 41. R8e2 {[%emt 0:02:19]} Rb8 {[%emt 0:01:24]} 42. Na6 {[%emt 0:11:17]} Rbh8 {[%emt 0:02:30]} 43. Re8 {[%emt 0:01:01]} Rxe8 {[%emt 0:11:18]} 44. Rxe8 {[%emt 0:00:06]} Bd7 {[%emt 0:01:05]} 45. Re2 {[%emt 0:10:24]} f5 {[%emt 0:06:13]} 46. Nc5 {[%emt 0:02:22]} f4+ {[%emt 0:00:15]} 47. Kg2 {[%emt 0:00:06]} Bh3+ {[%emt 0:00:56]} 48. Kf2 {[%emt 0:02:41]} Bf5 {[%emt 0:00:40]} 49. Ke1 {[%emt 0:00:20]} Rh3 {[%emt 0:02:50]} 50. Rf2 {[%emt 0:00:23]} Rh8 {[%emt 0:00:07]} 51. Kd2 {[%emt 0:01:34]} Rb8 {[%emt 0:02:12]} 52. Kc1 {[%emt 0:02:53]} Rb1+ {[%emt 0:01:45]} 53. Kd2 {[%emt 0:00:05]} Ra1 {[%emt 0:00:22]} 54. Nxa4 {[%emt 0:00:51]} Rxa2+ {[%emt 0:00:20]} 55. Ke1 {[%emt 0:00:05]} Rxa3 {[%emt 0:00:14]} 56. Nc5 {[%emt 0:00:10]} Rxc3 {[%emt 0:00:21]} 57. Kf1 {[%emt 0:01:38]} Rc1+ {[%emt 0:03:03]} 58. Kg2 {[%emt 0:01:50]} Rd1 {[%emt 0:00:30]} 59. Rb2 {[%emt 0:00:48]} Rxd4 {[%emt 0:00:42]} 60. Rb6 {[%emt 0:00:08]} Rd2+ {[%emt 0:00:11]} 61. Kg1 {[%emt 0:00:06]} Bh3 {[%emt 0:00:43]} 62. Rxc6+ {[%emt 0:00:06]} Kf7 {[%emt 0:06:38]} 63. Rh6 {[%emt 0:00:33]} Bf5 {[%emt 0:00:29]} 64. h4 {[%emt 0:01:19]} g4 {[%emt 0:00:35]} 65. fxg4 {[%emt 0:00:11]} Bxg4 {[%emt 0:00:12]} 66. Rh7+ {[%emt 0:01:13]} Kg6 {[%emt 0:00:21]} 67. Rh8 {[%emt 0:00:24]} Kg7 {[%emt 0:00:32]} 68. Ra8 {[%emt 0:00:43]} f3 {[%emt 0:00:35]} 69. Ra7+ {[%emt 0:00:26]} Kf6 {[%emt 0:00:49]} 70. Nd7+ {[%emt 0:00:48]} Kf5 {[%emt 0:00:24]} 71. Ra6 {[%emt 0:00:20]} f2+ {[%emt 0:00:13]} 72. Kg2 {[%emt 0:00:08]} Bh3+ {[%emt 0:01:26]} 73. Kg3 {[%emt 0:01:35]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "1.3"]
[White "Escobar Medina, Andres F"]
[Black "Malka, Samuel"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "2249"]
[BlackElo "2203"]
[Annotator "ChessBase"]
[PlyCount "68"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:02:32]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:01]} d6 {[%emt 0:00:00]} 3. Bb5+ {[%emt 0:00:06]} Bd7 {[%emt 0:00:00]} 4. Bxd7+ {[%emt 0:00:08]} Qxd7 {[%emt 0:00:00]} 5. c4 {[%emt 0:00:15]} Nf6 {[%emt 0:00:00]} 6. Nc3 {[%emt 0:00:03]} g6 {[%emt 0:00:00]} 7. d4 {[%emt 0:00:05]} cxd4 {[%emt 0:00:00]} 8. Nxd4 {[%emt 0:00:05]} Bg7 {[%emt 0:00:00]} 9. f3 {[%emt 0:00:43]} O-O {[%emt 0:00:08]} 10. Be3 {[%emt 0:00:12]} Nc6 {[%emt 0:00:32]} 11. Nde2 {[%emt 0:00:59]} a6 {[%emt 0:04:00]} 12. b3 {[%emt 0:01:34]} b5 {[%emt 0:11:58]} 13. cxb5 {[%emt 0:05:54]} axb5 {[%emt 0:00:11]} 14. O-O {[%emt 0:00:08]} Qb7 {[%emt 0:03:22]} 15. Rc1 {[%emt 0:05:37]} Rfd8 {[%emt 0:08:59]} 16. Nd4 {[%emt 0:02:24]} Nxd4 {[%emt 0:01:24]} 17. Bxd4 {[%emt 0:00:03]} e5 {[%emt 0:00:35]} 18. Be3 {[%emt 0:00:51]} d5 {[%emt 0:00:17]} 19. exd5 {[%emt 0:00:05]} b4 {[%emt 0:06:44]} 20. Na4 {[%emt 0:00:11]} Nxd5 {[%emt 0:00:12]} 21. Qe2 {[%emt 0:00:09]} e4 {[%emt 0:02:06]} 22. Rc4 {[%emt 0:03:38]} Nxe3 {[%emt 0:03:40]} 23. Qxe3 {[%emt 0:00:08]} exf3 {[%emt 0:00:29]} 24. Rxf3 {[%emt 0:07:18]} Re8 {[%emt 0:12:39]} 25. Qf4 {[%emt 0:11:15]} Be5 {[%emt 0:08:30]} 26. Qc1 {[%emt 0:09:40]} Rad8 {[%emt 0:04:40]} 27. Rf1 {[%emt 0:05:18]} Bd4+ {[%emt 0:15:25]} 28. Kh1 {[%emt 0:00:04]} Re2 {[%emt 0:00:47]} 29. Rc6 {[%emt 0:05:03]} Rd6 {[%emt 0:05:44]} 30. Qc4 {[%emt 0:00:05]} Rd2 {[%emt 0:10:28]} 31. Qc1 {[%emt 0:00:06]} Rxg2 {[%emt 0:00:45]} 32. Rc8+ {[%emt 0:00:07]} Kg7 {[%emt 0:00:13]} 33. Rxf7+ {[%emt 0:00:12]} Qxf7 {[%emt 0:00:31]} 34. Rc7 {[%emt 0:00:06]} Rg1+ {[%emt 0:00:35]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "1.5"]
[White "Benitez Lozano, Javier"]
[Black "Araujo Sanchez, Josue"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "2350"]
[BlackElo "2337"]
[Annotator "ChessBase"]
[PlyCount "154"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} e5 {[%emt 0:00:16]} 2. Nc3 {[%emt 1:31:00]} Nf6 3. Nf3 d6 4. g3 {[%emt 0:00:00]} Be7 {[%emt 0:01:09]} 5. Bg2 {[%emt 0:00:00]} O-O {[%emt 0:05:16]} 6. O-O {[%emt 0:00:00]} Re8 {[%emt 0:01:09]} 7. d4 {[%emt 0:00:00]} exd4 {[%emt 0:01:10]} 8. Nxd4 {[%emt 0:00:00]} c6 {[%emt 0:01:18]} 9. b3 {[%emt 0:00:00]} a5 {[%emt 0:05:42]} 10. Qc2 {[%emt 0:00:00]} Na6 {[%emt 0:01:27]} 11. Rd1 {[%emt 0:00:00]} Qb6 {[%emt 0:04:31]} 12. Nf5 {[%emt 0:00:00]} Bxf5 {[%emt 0:06:33]} 13. Qxf5 {[%emt 0:00:00]} Nc5 {[%emt 0:01:37]} 14. Be3 {[%emt 0:00:00]} Qb4 {[%emt 0:17:45]} 15. Rac1 {[%emt 0:00:00]} Nfd7 {[%emt 0:01:27]} 16. Bd2 {[%emt 0:00:00]} Qb6 {[%emt 0:07:57]} 17. Rb1 {[%emt 0:04:01]} Ne5 {[%emt 0:03:43]} 18. Be3 {[%emt 0:01:37]} Qb4 {[%emt 0:06:31]} 19. Bd2 {[%emt 0:02:13]} Qb6 {[%emt 0:02:52]} 20. Be3 {[%emt 0:00:35]} Qb4 {[%emt 0:04:51]} 21. Rdc1 {[%emt 0:00:17]} g6 {[%emt 0:01:05]} 22. Qc2 {[%emt 0:00:40]} Ng4 {[%emt 0:01:38]} 23. Bd2 {[%emt 0:01:07]} Qb6 24. Rf1 f5 25. h3 Nf6 26. Be3 Qc7 27. Bxc5 {[%emt 0:01:28]} dxc5 {[%emt 0:06:32]} 28. e3 {[%emt 0:00:13]} Bf8 {[%emt 0:03:43]} 29. Rbd1 {[%emt 0:00:22]} Qe5 {[%emt 0:01:57]} 30. Rd3 {[%emt 0:01:27]} h5 31. h4 Bh6 32. Ne2 Rad8 33. Rfd1 Rxd3 34. Qxd3 Kf7 35. Bf3 Re7 36. Kg2 Qc7 37. Qc3 Nd7 38. Nf4 Bxf4 39. gxf4 {[%emt 0:03:56]} Nf6 {[%emt 0:08:33]} 40. Rd3 {[%emt 0:00:00]} Re8 {[%emt 0:00:00]} 41. Qd2 {[%emt 0:04:25]} Re7 {[%emt 0:10:15]} 42. Rd6 {[%emt 0:14:01]} Re6 {[%emt 0:03:00]} 43. Rd8 {[%emt 0:00:58]} Re8 {[%emt 0:01:28]} 44. Rd3 {[%emt 0:13:40]} Re6 45. Qb2 Re7 46. Rd1 Rd7 47. Rd2 Rxd2 48. Qxd2 Ke7 49. Kf1 b5 50. cxb5 {[%emt 0:00:00]} cxb5 {[%emt 0:04:52]} 51. Qc3 {[%emt 0:01:33]} b4 {[%emt 0:22:50]} 52. Qc4 {[%emt 0:00:57]} Qd6 {[%emt 0:01:01]} 53. Qb5 {[%emt 0:00:35]} Qc7 {[%emt 0:00:38]} 54. Qa6 {[%emt 0:00:36]} Kf7 {[%emt 0:02:05]} 55. Ke1 {[%emt 0:01:17]} Ke7 {[%emt 0:01:08]} 56. Be2 {[%emt 0:00:28]} Kf7 {[%emt 0:01:22]} 57. Bc4+ {[%emt 0:00:19]} Kg7 {[%emt 0:00:16]} 58. Qe6 {[%emt 0:00:30]} Qd8 {[%emt 0:00:30]} 59. Qe5 {[%emt 0:00:30]} Kh7 {[%emt 0:00:30]} 60. Ke2 {[%emt 0:00:30]} Ne4 {[%emt 0:00:30]} 61. Bd3 {[%emt 0:00:42]} Nc3+ {[%emt 0:00:37]} 62. Kd2 {[%emt 0:00:25]} Qxh4 {[%emt 0:00:33]} 63. Ke1 {[%emt 0:00:36]} Qh1+ {[%emt 0:00:24]} 64. Bf1 {[%emt 0:00:12]} Qe4 {[%emt 0:00:24]} 65. Qxe4 {[%emt 0:00:49]} Nxe4 {[%emt 0:00:31]} 66. f3 {[%emt 0:00:28]} Nc3 {[%emt 0:00:31]} 67. Kd2 {[%emt 0:00:05]} Nd5 {[%emt 0:00:35]} 68. Bc4 {[%emt 0:00:48]} Nb6 {[%emt 0:00:11]} 69. Be6 Kg7 {[%emt 0:01:37]} 70. e4 {[%emt 0:01:08]} Kf6 {[%emt 0:00:00]} 71. Bg8 a4 {[%emt 0:01:00]} 72. e5+ {[%emt 0:01:00]} Kg7 {[%emt 0:00:30]} 73. Be6 {[%emt 0:00:24]} a3 {[%emt 0:00:30]} 74. Ke3 {[%emt 0:01:08]} h4 {[%emt 0:00:00]} 75. Kf2 {[%emt 0:00:00]} c4 {[%emt 0:00:00]} 76. bxc4 {[%emt 0:00:21]} b3 {[%emt 0:00:00]} 77. c5 {[%emt 0:00:15]} b2 {[%emt 0:00:00]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "1.6"]
[White "Vera Siguenas, Deivy"]
[Black "Ruiz Castillo, Joshua Daniel"]
[Result "1/2-1/2"]
[ECO "E53"]
[WhiteElo "2503"]
[BlackElo "2498"]
[Annotator "RC"]
[PlyCount "138"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Bb4 {[%emt 0:00:14]} 4. e3 {[%emt 0:00:00]} O-O {[%emt 0:00:14]} 5. Bd3 {[%emt 0:00:01]} d5 {[%emt 0:00:15]} 6. Nf3 {[%emt 0:00:49]} c5 {[%emt 0:00:22]} 7. cxd5 {[%emt 0:00:05]} exd5 {[%emt 0:00:39]} 8. dxc5 {[%emt 0:00:05]} Nbd7 {[%emt 0:08:13]} 9. Bd2 {[%emt 0:00:26]} Nxc5 {[%emt 0:03:20]} 10. Be2 {[%emt 0:00:06]} Ba5 {[%emt 0:01:35]} 11. O-O {[%emt 0:00:29]} Nce4 {[%emt 0:00:25]} 12. Nxe4 {[%emt 0:09:25]} dxe4 {[%emt 0:00:34]} 13. Nd4 {[%emt 0:01:11]} Bxd2 {[%emt 0:18:31]} 14. Qxd2 {[%emt 0:00:54]} Bg4 {[%emt 0:00:00]} 15. Bc4 {[%emt 0:04:00]} Qd6 {[%emt 0:03:08]} 16. h3 {[%emt 0:00:42]} Bh5 {[%emt 0:01:17]} 17. Qa5 {[%emt 0:02:41]} Rfc8 {[%emt 0:02:23]} 18. Rac1 {[%emt 0:03:09]} b6 {[%emt 0:01:34]} 19. Qg5 {[%emt 0:09:37]} Rc5 {[%emt 0:08:08]} 20. Nf5 {[%emt 0:00:36]} Qf8 {[%emt 0:00:04]} 21. b4 {[%emt 0:00:11]} Rcc8 {[%emt 0:00:55]} 22. Ba6 {[%emt 0:10:06]} Rxc1 {[%emt 0:03:16]} 23. Rxc1 {[%emt 0:00:05]} Bg6 {[%emt 0:00:04]} 24. a3 {[%emt 0:03:32]} Bxf5 {[%emt 0:09:57]} 25. Qxf5 {[%emt 0:00:18]} h6 {[%emt 0:10:53]} 26. Qe5 {[%emt 0:09:38]} Re8 {[%emt 0:01:19]} 27. Qc7 {[%emt 0:01:25]} Qe7 {[%emt 0:05:32]} 28. Bb5 {[%emt 0:10:54]} Nd5 {[%emt 0:00:12]} 29. Qxe7 {[%emt 0:00:13]} Rxe7 {[%emt 0:00:04]} 30. Rc8+ {[%emt 0:00:06]} Kh7 {[%emt 0:00:05]} 31. Bc6 {[%emt 0:00:07]} Nf6 {[%emt 0:04:46]} 32. Kf1 {[%emt 0:00:21]} g5 {[%emt 0:00:06]} 33. Ke2 {[%emt 0:00:40]} Kg7 {[%emt 0:02:22]} 34. a4 {[%emt 0:04:56]} h5 {[%emt 0:03:55]} 35. Rd8 {[%emt 0:05:32]} h4 {[%emt 0:03:21]} 36. Rd4 {[%emt 0:04:13]} Kg6 {[%emt 0:00:34]} 37. b5 {[%emt 0:00:31]} Kf5 {[%emt 0:00:12]} 38. a5 {[%emt 0:00:27]} bxa5 {[%emt 0:00:09]} 39. Ra4 {[%emt 0:00:03]} g4 {[%emt 0:03:28]} 40. Rxa5 {[%emt 0:00:00]} Kg6 {[%emt 0:00:00]} 41. Ra4 {[%emt 0:06:25]} gxh3 {[%emt 0:02:20]} 42. gxh3 {[%emt 0:00:05]} Kf5 {[%emt 0:00:06]} 43. f3 {[%emt 0:01:12]} exf3+ {[%emt 0:00:23]} 44. Kxf3 {[%emt 0:00:16]} Kg5 {[%emt 0:00:04]} 45. Ra5 {[%emt 0:03:19]} Kg6 {[%emt 0:00:40]} 46. Ra1 {[%emt 0:00:02]} Nh7 {[%emt 0:02:03]} 47. Kg4 {[%emt 0:09:58]} Ng5 {[%emt 0:02:22]} 48. Ra3 {[%emt 0:01:14]} f6 {[%emt 0:00:57]} 49. Kxh4 {[%emt 0:01:39]} Rh7+ {[%emt 0:00:05]} 50. Kg4 {[%emt 0:00:16]} f5+ {[%emt 0:00:21]} 51. Kf4 {[%emt 0:00:29]} Kf6 {[%emt 0:06:56]} 52. Bg2 {[%emt 0:03:18]} Ne6+ {[%emt 0:03:25]} 53. Kg3 {[%emt 0:00:10]} Rg7+ {[%emt 0:00:49]} 54. Kf2 {[%emt 0:02:38]} Rh7 {[%emt 0:01:50]} 55. Bd5 {[%emt 0:03:07]} Ng5 {[%emt 0:03:03]} 56. h4 {[%emt 0:02:16]} Rxh4 {[%emt 0:00:06]} 57. Rxa7 {[%emt 0:00:04]} Rb4 {[%emt 0:00:58]} 58. Bc6 {[%emt 0:00:10]} Rb2+ {[%emt 0:01:22]} 59. Ke1 {[%emt 0:00:14]} Nf7 {[%emt 0:00:10]} 60. Kd1 {[%emt 0:05:03]} Ne5 {[%emt 0:01:26]} 61. Ra3 {[%emt 0:01:41]} Ke6 {[%emt 0:05:20]} 62. Kc1 {[%emt 0:00:02]} Rb4 {[%emt 0:00:12]} 63. Kc2 {[%emt 0:00:51]} Nxc6 {[%emt 0:02:41]} 64. bxc6 {[%emt 0:00:04]} Kd6 {[%emt 0:00:03]} 65. Rc3 {[%emt 0:00:15]} Kc7 {[%emt 0:00:02]} 66. Kd3 {[%emt 0:00:15]} Re4 {[%emt 0:00:18]} 67. Rc5 {[%emt 0:01:10]} Re6 {[%emt 0:00:50]} 68. Kc4 {[%emt 0:01:50]} Rxe3 {[%emt 0:00:08]} 69. Rxf5 {[%emt 0:00:03]} Kxc6 {[%emt 0:00:06]} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "2.1"]
[White "Heredia Serrano, Carla"]
[Black "Palencia Morales, Wilson Guillermo"]
[Result "0-1"]
[ECO "C67"]
[BlackElo "2340"]
[Annotator "RC"]
[PlyCount "113"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:12:43]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:13]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:23]} Nf6 {[%emt 0:00:00]} 4. O-O {[%emt 0:00:16]} Nxe4 {[%emt 0:00:06]} 5. Re1 {[%emt 0:00:21]} Nd6 {[%emt 0:00:06]} 6. Nxe5 {[%emt 0:00:11]} Be7 {[%emt 0:00:39]} 7. Bf1 {[%emt 0:02:01]} Nxe5 {[%emt 0:00:35]} 8. Rxe5 {[%emt 0:00:01]} O-O {[%emt 0:00:08]} 9. d4 {[%emt 0:00:07]} Bf6 {[%emt 0:00:33]} 10. Re1 {[%emt 0:00:01]} Nf5 {[%emt 0:00:16]} 11. c3 {[%emt 0:02:44]} d5 {[%emt 0:00:08]} 12. Bf4 {[%emt 0:03:02]} b6 {[%emt 0:01:14]} 13. Nd2 {[%emt 0:05:51]} Nh4 {[%emt 0:05:53]} 14. Bd3 {[%emt 0:22:19]} c5 {[%emt 0:05:14]} 15. Be5 {[%emt 0:01:16]} c4 {[%emt 0:07:40]} 16. Bc2 {[%emt 0:01:40]} Bg5 {[%emt 0:04:43]} 17. Nf1 {[%emt 0:18:05]} Ng6 {[%emt 0:02:31]} 18. Qh5 {[%emt 0:01:10]} f5 {[%emt 0:02:33]} 19. Bc7 {[%emt 0:09:51]} Qf6 {[%emt 0:02:29]} 20. Be5 {[%emt 0:00:14]} Nxe5 {[%emt 0:02:25]} 21. Rxe5 {[%emt 0:01:43]} Bf4 {[%emt 0:06:54]} 22. Re2 {[%emt 0:06:33]} Qf7 {[%emt 0:16:19]} 23. Qf3 {[%emt 0:00:47]} Bd6 {[%emt 0:02:04]} 24. Rae1 {[%emt 0:02:19]} f4 {[%emt 0:04:16]} 25. b3 {[%emt 0:01:11]} b5 {[%emt 0:02:52]} 26. bxc4 {[%emt 0:00:03]} bxc4 {[%emt 0:00:06]} 27. Ba4 {[%emt 0:00:23]} Bb7 {[%emt 0:05:04]} 28. Nd2 {[%emt 0:04:30]} Rad8 {[%emt 0:02:08]} 29. Rb1 {[%emt 0:02:27]} Rc8 {[%emt 0:08:58]} 30. Qh3 {[%emt 0:00:52]} Rc7 {[%emt 0:00:44]} 31. Qe6 {[%emt 0:01:29]} Re7 {[%emt 0:05:45]} 32. Qxf7+ {[%emt 0:00:25]} Rfxf7 {[%emt 0:00:01]} 33. Rxe7 {[%emt 0:00:44]} Rxe7 {[%emt 0:00:07]} 34. h3 {[%emt 0:00:24]} g5 {[%emt 0:01:01]} 35. Nf3 {[%emt 0:00:34]} h6 {[%emt 0:00:06]} 36. Kf1 {[%emt 0:00:15]} Kf7 {[%emt 0:03:31]} 37. Ne1 {[%emt 0:00:06]} h5 {[%emt 0:00:25]} 38. Nc2 {[%emt 0:00:09]} g4 {[%emt 0:00:25]} 39. hxg4 {[%emt 0:01:14]} hxg4 {[%emt 0:00:07]} 40. Nb4 {[%emt 0:00:00]} Rc7 {[%emt 0:00:00]} 41. Bd1 {[%emt 0:02:10]} a5 {[%emt 0:04:39]} 42. Nc2 {[%emt 0:00:04]} Bc8 {[%emt 0:00:09]} 43. Rb5 {[%emt 0:01:41]} Be6 {[%emt 0:00:06]} 44. Rxa5 {[%emt 0:09:34]} Rb7 {[%emt 0:01:29]} 45. Na3 {[%emt 0:03:11]} Bxa3 {[%emt 0:04:38]} 46. Rxa3 {[%emt 0:00:01]} Rb1 {[%emt 0:00:09]} 47. Ke2 {[%emt 0:05:11]} g3 {[%emt 0:00:37]} 48. Ra7+ {[%emt 0:02:24]} Kf8 {[%emt 0:01:35]} 49. Ra8+ {[%emt 0:01:42]} Ke7 {[%emt 0:00:02]} 50. Ra7+ {[%emt 0:00:04]} Kd8 {[%emt 0:00:08]} 51. f3 {[%emt 0:07:14]} Rb2+ {[%emt 0:00:35]} 52. Kf1 {[%emt 0:02:46]} Rf2+ {[%emt 0:00:30]} 53. Ke1 {[%emt 0:01:13]} Rxg2 {[%emt 0:00:23]} 54. Be2 {[%emt 0:00:35]} Rg1+ {[%emt 0:00:29]} 55. Kd2 {[%emt 0:00:01]} Ra1 {[%emt 0:00:15]} 56. a4 {[%emt 0:00:12]} g2 {[%emt 0:00:15]} 57. Rg7 {[%emt 0:00:20]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "2.2"]
[White "Malka, Samuel"]
[Black "Mateus, Alejandro"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2203"]
[BlackElo "2353"]
[Annotator "RC"]
[PlyCount "128"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:05:58]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:05]} e6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:01]} d5 {[%emt 0:00:27]} 4. Nf3 {[%emt 0:00:02]} dxc4 {[%emt 0:00:38]} 5. Bg2 {[%emt 0:00:01]} Bb4+ {[%emt 0:00:23]} 6. Bd2 {[%emt 0:00:11]} c5 {[%emt 0:00:16]} 7. dxc5 {[%emt 0:10:11]} Bxc5 {[%emt 0:00:18]} 8. Qa4+ {[%emt 0:01:12]} Bd7 {[%emt 0:02:29]} 9. Qxc4 {[%emt 0:00:46]} Qb6 {[%emt 0:02:10]} 10. O-O {[%emt 0:01:28]} Bb5 {[%emt 0:01:16]} 11. Qh4 {[%emt 0:00:34]} Bxe2 {[%emt 0:07:36]} 12. b4 {[%emt 0:10:47]} Be7 {[%emt 0:04:53]} 13. Re1 {[%emt 0:04:40]} Nd5 {[%emt 0:17:50]} 14. Qe4 {[%emt 0:09:08]} Bxf3 {[%emt 0:04:37]} 15. Bxf3 {[%emt 0:00:16]} O-O {[%emt 0:01:06]} 16. Nc3 {[%emt 0:03:49]} Nc6 {[%emt 0:06:36]} 17. Rab1 {[%emt 0:04:55]} Rad8 {[%emt 0:04:14]} 18. Na4 {[%emt 0:09:46]} Qd4 {[%emt 0:05:04]} 19. Red1 {[%emt 0:06:41]} Ne5 {[%emt 0:09:23]} 20. Bg2 {[%emt 0:06:41]} Qxe4 {[%emt 0:00:29]} 21. Bxe4 {[%emt 0:00:01]} Nc4 {[%emt 0:01:03]} 22. Be1 {[%emt 0:23:47]} Bf6 {[%emt 0:03:51]} 23. Nc5 {[%emt 0:00:00]} b6 {[%emt 0:01:06]} 24. Nb3 {[%emt 0:00:00]} g6 {[%emt 0:06:48]} 25. Nd4 {[%emt 0:00:00]} Rd7 {[%emt 0:02:36]} 26. b5 {[%emt 0:00:00]} Rc8 {[%emt 0:04:31]} 27. a4 {[%emt 0:00:00]} Na3 {[%emt 0:05:24]} 28. Ra1 {[%emt 0:00:00]} Bxd4 {[%emt 0:02:33]} 29. Rxd4 {[%emt 0:00:00]} Nc2 {[%emt 0:01:40]} 30. Rc1 {[%emt 0:00:55]} Rdc7 {[%emt 0:00:38]} 31. Rdd1 {[%emt 0:02:01]} Nxe1 {[%emt 0:01:23]} 32. Rxc7 {[%emt 0:00:05]} Rxc7 {[%emt 0:00:21]} 33. Bxd5 {[%emt 0:00:20]} exd5 {[%emt 0:00:52]} 34. Rxe1 {[%emt 0:00:01]} Rc4 {[%emt 0:01:53]} 35. a5 {[%emt 0:02:01]} bxa5 {[%emt 0:01:46]} 36. Re7 {[%emt 0:00:08]} Rb4 {[%emt 0:00:33]} 37. Rxa7 {[%emt 0:00:13]} Rxb5 {[%emt 0:00:05]} 38. h4 {[%emt 0:00:48]} Kg7 {[%emt 0:01:22]} 39. Ra6 {[%emt 0:00:01]} Kf8 {[%emt 0:00:44]} 40. Ra7 {[%emt 0:00:00]} h5 {[%emt 0:00:00]} 41. Kf1 {[%emt 0:02:04]} d4 {[%emt 0:03:37]} 42. Ke2 {[%emt 0:05:13]} Rd5 {[%emt 0:03:23]} 43. Kd3 {[%emt 0:00:51]} Kg7 {[%emt 0:02:13]} 44. Ra6 {[%emt 0:00:44]} Rf5 {[%emt 0:01:53]} 45. Ke2 {[%emt 0:07:41]} d3+ {[%emt 0:01:51]} 46. Ke3 {[%emt 0:00:29]} Rd5 {[%emt 0:00:30]} 47. Kd2 {[%emt 0:00:08]} Kf8 {[%emt 0:00:33]} 48. Ra7 {[%emt 0:00:29]} Ke8 {[%emt 0:00:21]} 49. Rb7 {[%emt 0:02:55]} Rf5 {[%emt 0:02:21]} 50. f4 {[%emt 0:09:17]} Rd5 {[%emt 0:00:39]} 51. Ra7 {[%emt 0:00:14]} Kf8 {[%emt 0:02:52]} 52. Rb7 {[%emt 0:00:07]} Kg7 {[%emt 0:00:33]} 53. Rb6 {[%emt 0:00:02]} Rd4 {[%emt 0:03:06]} 54. Ra6 {[%emt 0:03:47]} Ra4 {[%emt 0:01:18]} 55. Kxd3 {[%emt 0:00:55]} Ra3+ {[%emt 0:00:08]} 56. Ke2 {[%emt 0:00:07]} Rxg3 {[%emt 0:00:42]} 57. Rxa5 {[%emt 0:00:13]} Rg4 {[%emt 0:00:14]} 58. Kf3 {[%emt 0:00:19]} Rxh4 {[%emt 0:00:11]} 59. Kg3 {[%emt 0:02:16]} Rg4+ {[%emt 0:01:04]} 60. Kf3 {[%emt 0:00:14]} Rg1 {[%emt 0:00:23]} 61. Kf2 {[%emt 0:00:29]} Rb1 {[%emt 0:00:09]} 62. Kg3 {[%emt 0:00:15]} Rb3+ {[%emt 0:01:27]} 63. Kh4 {[%emt 0:02:48]} Rf3 {[%emt 0:02:00]} 64. Ra4 {[%emt 0:01:54]} Kh6 {[%emt 0:00:11]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "2.3"]
[White "Brizuela Abreu, Ronald Jesus"]
[Black "Hernandez Sanchez, Jairo Andres"]
[Result "1/2-1/2"]
[ECO "A01"]
[Annotator "NA RC"]
[PlyCount "84"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. b3 {[%emt 0:03:21]} g6 {[%emt 0:01:32]} 2. Bb2 {[%emt 0:00:01]} Nf6 {[%emt 0:00:11]} 3. Bxf6 {[%emt 0:00:01]} exf6 {[%emt 0:00:12]} 4. c4 {[%emt 0:00:01]} b6 {[%emt 0:02:04]} 5. Nf3 {[%emt 0:01:27]} Bb7 {[%emt 0:00:39]} 6. Nc3 {[%emt 0:00:03]} f5 {[%emt 0:01:26]} 7. g3 {[%emt 0:00:43]} Bg7 {[%emt 0:07:04]} 8. Bg2 {[%emt 0:00:02]} O-O {[%emt 0:00:47]} 9. O-O {[%emt 0:00:02]} d6 {[%emt 0:02:37]} 10. Rc1 {[%emt 0:03:20]} Nd7 {[%emt 0:04:04]} 11. e3 {[%emt 0:03:49]} Nf6 {[%emt 0:02:33]} 12. d4 {[%emt 0:00:13]} c5 {[%emt 0:02:06]} 13. Nd2 {[%emt 0:18:26]} Qe7 {[%emt 0:12:18]} 14. Bxb7 {[%emt 0:04:18]} Qxb7 {[%emt 0:00:31]} 15. Qf3 {[%emt 0:00:01]} Qxf3 {[%emt 0:01:51]} 16. Nxf3 {[%emt 0:00:13]} Rfd8 {[%emt 0:15:51]} 17. Rfd1 {[%emt 0:02:04]} Ne4 {[%emt 0:07:15]} 18. Nd5 {[%emt 0:06:29]} Rd7 {[%emt 0:02:15]} 19. Rc2 {[%emt 0:01:54]} Rad8 {[%emt 0:01:13]} 20. Kf1 {[%emt 0:05:00]} Nf6 {[%emt 0:08:49]} 21. Nc3 {[%emt 0:10:42]} Ne4 {[%emt 0:00:10]} 22. Nd5 {[%emt 0:16:15]} Nf6 {[%emt 0:00:51]} 23. Nf4 {[%emt 0:02:10]} Bh6 {[%emt 0:02:53]} 24. Ne2 {[%emt 0:03:31]} Ne4 {[%emt 0:06:49]} 25. Nd2 {[%emt 0:03:44]} Nf6 {[%emt 0:02:06]} 26. Nb1 {[%emt 0:02:55]} Bf8 {[%emt 0:02:29]} 27. Nbc3 {[%emt 0:00:33]} d5 {[%emt 0:00:33]} 28. dxc5 {[%emt 0:00:12]} Bxc5 {[%emt 0:00:37]} 29. cxd5 {[%emt 0:01:58]} Nxd5 {[%emt 0:00:10]} 30. Nxd5 {[%emt 0:00:03]} Rxd5 {[%emt 0:00:12]} 31. Rxd5 {[%emt 0:00:03]} Rxd5 {[%emt 0:00:01]} 32. Nf4 {[%emt 0:00:01]} Rd1+ {[%emt 0:03:41]} 33. Ke2 {[%emt 0:00:02]} Ra1 {[%emt 0:00:03]} 34. Kd3 {[%emt 0:00:51]} g5 {[%emt 0:04:10]} 35. Nd5 {[%emt 0:00:27]} Kg7 {[%emt 0:03:37]} 36. f4 {[%emt 0:05:25]} h6 {[%emt 0:00:21]} 37. b4 {[%emt 0:00:07]} Bf8 {[%emt 0:01:56]} 38. Kc4 {[%emt 0:01:19]} Rd1 {[%emt 0:01:20]} 39. Nc3 {[%emt 0:02:31]} Re1 {[%emt 0:00:49]} 40. Nd5 {[%emt 0:00:00]} Rd1 {[%emt 0:00:00]} 41. Nc7 {[%emt 0:36:13]} Kg6 {[%emt 0:32:24]} 42. Kb5 {[%emt 0:00:30]} Kh5 {[%emt 0:00:30]} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "2.4"]
[White "Morales, Jhon Alexander"]
[Black "Pazos Gambarrotti, Plinio"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2400"]
[BlackElo "2109"]
[Annotator "RC"]
[PlyCount "75"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:25]} 2. c4 {[%emt 0:00:11]} c5 {[%emt 0:01:24]} 3. Nf3 {[%emt 0:00:09]} g6 {[%emt 0:00:09]} 4. d5 {[%emt 0:00:48]} b5 {[%emt 0:00:07]} 5. cxb5 {[%emt 0:00:05]} a6 {[%emt 0:00:05]} 6. b6 {[%emt 0:00:08]} d6 {[%emt 0:00:05]} 7. Nc3 {[%emt 0:00:09]} Nbd7 {[%emt 0:00:15]} 8. e4 {[%emt 0:06:58]} Rb8 {[%emt 0:00:38]} 9. Be2 {[%emt 0:00:55]} Bg7 {[%emt 0:00:06]} 10. O-O {[%emt 0:00:21]} O-O {[%emt 0:00:24]} 11. a4 {[%emt 0:05:31]} Nxb6 {[%emt 0:00:52]} 12. Re1 {[%emt 0:26:01]} Nfd7 {[%emt 0:08:49]} 13. Nd2 {[%emt 0:04:39]} f5 {[%emt 0:05:42]} 14. exf5 {[%emt 0:09:34]} gxf5 {[%emt 0:00:45]} 15. Nf3 {[%emt 0:00:35]} Nf6 {[%emt 0:04:43]} 16. Ng5 {[%emt 0:09:11]} Na8 {[%emt 0:07:46]} 17. Bf3 {[%emt 0:12:20]} Nc7 {[%emt 0:01:31]} 18. Qc2 {[%emt 0:02:14]} Nd7 {[%emt 0:04:23]} 19. Nh3 {[%emt 0:05:22]} Ne5 {[%emt 0:00:46]} 20. Be2 {[%emt 0:00:06]} Ng6 {[%emt 0:01:14]} 21. Bh5 {[%emt 0:05:17]} Bd7 {[%emt 0:04:37]} 22. Bg5 {[%emt 0:00:41]} Be5 {[%emt 0:01:40]} 23. Bxg6 {[%emt 0:00:38]} hxg6 {[%emt 0:00:06]} 24. Rxe5 {[%emt 0:00:24]} dxe5 {[%emt 0:00:46]} 25. d6 {[%emt 0:00:07]} Rf7 {[%emt 0:00:14]} 26. dxc7 {[%emt 0:00:41]} Qxc7 {[%emt 0:00:14]} 27. Nd5 {[%emt 0:00:35]} Qb7 {[%emt 0:01:36]} 28. Nxe7+ {[%emt 0:02:35]} Kg7 {[%emt 0:00:06]} 29. Qxc5 {[%emt 0:03:12]} Qxb2 {[%emt 0:00:37]} 30. Rf1 {[%emt 0:03:14]} Bxa4 {[%emt 0:00:25]} 31. Qd6 {[%emt 0:01:07]} Rb6 {[%emt 0:00:36]} 32. Qd5 {[%emt 0:01:16]} Rb5 {[%emt 0:01:23]} 33. Qa8 {[%emt 0:00:13]} Rb8 {[%emt 0:00:14]} 34. Qxa6 {[%emt 0:00:13]} Kf8 {[%emt 0:02:58]} 35. Nxg6+ {[%emt 0:00:26]} Kg7 {[%emt 0:00:07]} 36. Ne7 {[%emt 0:00:38]} Kf8 {[%emt 0:00:07]} 37. Qxa4 {[%emt 0:00:25]} Qb5 {[%emt 0:00:30]} 38. Qh4 {[%emt 0:00:20]} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "2.5"]
[White "Soto, Miguel Angel"]
[Black "Argote Heredia, Valentina"]
[Result "0-1"]
[ECO "E15"]
[BlackElo "2150"]
[Annotator "RC"]
[PlyCount "98"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:03:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:26]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:39]} b6 {[%emt 0:02:41]} 4. g3 {[%emt 0:01:40]} Ba6 {[%emt 0:03:38]} 5. b3 {[%emt 0:00:30]} d5 {[%emt 0:09:21]} 6. Bg2 {[%emt 0:02:55]} Bb4+ {[%emt 0:02:30]} 7. Bd2 {[%emt 0:00:38]} Be7 {[%emt 0:00:07]} 8. Ne5 {[%emt 0:02:27]} O-O {[%emt 0:02:03]} 9. O-O {[%emt 0:03:46]} c5 {[%emt 0:02:04]} 10. Bc3 {[%emt 0:04:39]} Bb7 {[%emt 0:06:25]} 11. Nd2 {[%emt 0:08:50]} Nc6 {[%emt 0:05:59]} 12. dxc5 {[%emt 0:04:24]} Bxc5 {[%emt 0:03:48]} 13. e3 {[%emt 0:01:01]} Rc8 {[%emt 0:02:29]} 14. Ng4 {[%emt 0:06:50]} Be7 {[%emt 0:09:52]} 15. Bxf6 {[%emt 0:09:29]} Bxf6 {[%emt 0:00:10]} 16. Nxf6+ {[%emt 0:00:11]} Qxf6 {[%emt 0:00:04]} 17. cxd5 {[%emt 0:01:13]} exd5 {[%emt 0:00:49]} 18. Bxd5 {[%emt 0:05:56]} Rcd8 {[%emt 0:10:02]} 19. e4 {[%emt 0:03:42]} Ba6 {[%emt 0:00:20]} 20. Nc4 {[%emt 0:02:00]} Nb4 {[%emt 0:09:03]} 21. Qd2 {[%emt 0:02:26]} Nxd5 {[%emt 0:00:57]} 22. exd5 {[%emt 0:00:10]} Qf3 {[%emt 0:02:23]} 23. Rfd1 {[%emt 0:02:23]} Bb7 {[%emt 0:01:52]} 24. Qe3 {[%emt 0:09:11]} Qh5 {[%emt 0:00:26]} 25. Qe7 {[%emt 0:06:26]} Rxd5 {[%emt 0:05:11]} 26. Re1 {[%emt 0:01:19]} Ba8 {[%emt 0:02:01]} 27. Rac1 {[%emt 0:01:38]} Qh3 {[%emt 0:03:18]} 28. Qh4 {[%emt 0:01:58]} Qd7 {[%emt 0:04:21]} 29. Qe7 {[%emt 0:04:18]} Qh3 {[%emt 0:01:20]} 30. Qh4 {[%emt 0:00:15]} Qxh4 {[%emt 0:00:03]} 31. gxh4 {[%emt 0:00:11]} Rd4 {[%emt 0:00:15]} 32. Re7 {[%emt 0:01:27]} Rg4+ {[%emt 0:04:21]} 33. Kf1 {[%emt 0:00:01]} Rxh4 {[%emt 0:00:53]} 34. Rxa7 {[%emt 0:01:17]} Rxh2 {[%emt 0:00:25]} 35. Rc3 {[%emt 0:02:13]} b5 {[%emt 0:01:24]} 36. Nd6 {[%emt 0:00:51]} h5 {[%emt 0:01:06]} 37. Nxb5 {[%emt 0:02:57]} h4 {[%emt 0:00:47]} 38. Nc7 {[%emt 0:01:13]} Rh1+ {[%emt 0:00:19]} 39. Ke2 {[%emt 0:00:01]} Bg2 {[%emt 0:00:48]} 40. f3 {[%emt 0:00:00]} Rf1 {[%emt 0:00:00]} 41. Ra4 {[%emt 0:10:18]} h3 {[%emt 0:02:40]} 42. Rh4 {[%emt 0:00:49]} g5 {[%emt 0:02:19]} 43. Rh5 {[%emt 0:00:28]} f6 {[%emt 0:00:20]} 44. Re3 {[%emt 0:00:56]} Rd8 {[%emt 0:09:09]} 45. f4 {[%emt 0:06:26]} Rc1 {[%emt 0:09:21]} 46. Re7 {[%emt 0:01:45]} Rc2+ {[%emt 0:01:23]} 47. Ke3 {[%emt 0:01:24]} Rc3+ {[%emt 0:03:48]} 48. Kf2 {[%emt 0:00:20]} Rd2+ {[%emt 0:01:11]} 49. Ke1 {[%emt 0:00:13]} Rxa2 {[%emt 0:00:39]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "3.1"]
[White "Hernandez Sanchez, Jairo Andres"]
[Black "Heredia Serrano, Carla"]
[Result "1-0"]
[ECO "B12"]
[Annotator "NA RC"]
[PlyCount "83"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c6 {[%emt 0:12:45]} 2. d4 {[%emt 0:00:15]} d5 {[%emt 0:00:21]} 3. e5 {[%emt 0:00:32]} c5 {[%emt 0:00:10]} 4. dxc5 {[%emt 0:01:27]} e6 {[%emt 0:00:08]} 5. a3 {[%emt 0:00:58]} Bxc5 {[%emt 0:00:09]} 6. b4 {[%emt 0:00:58]} Bb6 {[%emt 0:01:19]} 7. Nf3 {[%emt 0:00:12]} Ne7 {[%emt 0:00:38]} 8. Bd3 {[%emt 0:00:20]} Ng6 {[%emt 0:01:18]} 9. O-O {[%emt 0:02:52]} a5 {[%emt 0:00:16]} 10. b5 {[%emt 0:03:50]} Nd7 {[%emt 0:03:34]} 11. Bb2 {[%emt 0:08:20]} a4 {[%emt 0:12:03]} 12. c4 {[%emt 0:05:52]} dxc4 {[%emt 0:23:18]} 13. Bxg6 {[%emt 0:02:19]} hxg6 {[%emt 0:01:09]} 14. Nbd2 {[%emt 0:00:15]} O-O {[%emt 0:01:05]} 15. Nxc4 {[%emt 0:01:36]} Bc5 {[%emt 0:04:36]} 16. Bd4 {[%emt 0:17:28]} Qe7 {[%emt 0:07:53]} 17. Qe2 {[%emt 0:06:42]} b6 {[%emt 0:10:59]} 18. Bxc5 {[%emt 0:03:19]} bxc5 {[%emt 0:00:22]} 19. Qe4 {[%emt 0:12:09]} Rb8 {[%emt 0:00:25]} 20. Na5 {[%emt 0:01:44]} Rxb5 {[%emt 0:00:52]} 21. Nc6 {[%emt 0:02:16]} Qe8 {[%emt 0:01:17]} 22. Rab1 {[%emt 0:04:29]} Rb6 {[%emt 0:14:11]} 23. Na5 {[%emt 0:19:58]} Qd8 {[%emt 0:00:22]} 24. Rbd1 {[%emt 0:01:59]} Qc7 {[%emt 0:02:02]} 25. Qh4 {[%emt 0:00:58]} f6 {[%emt 0:00:24]} 26. exf6 {[%emt 0:00:28]} gxf6 {[%emt 0:00:43]} 27. Qh6 {[%emt 0:00:34]} g5 {[%emt 0:00:35]} 28. Nxg5 {[%emt 0:01:02]} fxg5 {[%emt 0:00:05]} 29. Qg6+ {[%emt 0:00:49]} Kh8 {[%emt 0:00:02]} 30. Qh6+ {[%emt 0:00:33]} Kg8 {[%emt 0:00:01]} 31. Qg6+ {[%emt 0:00:01]} Kh8 {[%emt 0:00:09]} 32. Qh5+ {[%emt 0:01:07]} Kg7 {[%emt 0:00:33]} 33. Qxg5+ {[%emt 0:00:06]} Kf7 {[%emt 0:00:19]} 34. Nc4 {[%emt 0:00:40]} Rh8 {[%emt 0:01:07]} 35. f4 {[%emt 0:00:43]} Rg8 {[%emt 0:01:21]} 36. Ne5+ {[%emt 0:00:35]} Kf8 {[%emt 0:00:13]} 37. Rxd7 {[%emt 0:00:23]} Bxd7 {[%emt 0:01:07]} 38. Qf6+ {[%emt 0:00:06]} Ke8 {[%emt 0:00:04]} 39. Qf7+ {[%emt 0:00:18]} Kd8 {[%emt 0:00:01]} 40. Qxg8+ {[%emt 0:00:00]} Be8 {[%emt 0:00:00]} 41. Rd1+ {[%emt 0:00:58]} Rd6 {[%emt 0:00:16]} 42. Rxd6+ {[%emt 0:00:10]} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "3.2"]
[White "Argote Heredia, Valentina"]
[Black "Brizuela Abreu, Ronald Jesus"]
[Result "1-0"]
[ECO "C13"]
[WhiteElo "2150"]
[Annotator "NA RC"]
[PlyCount "54"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:21]} e6 {[%emt 0:00:25]} 2. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:04]} 3. Nc3 {[%emt 0:00:12]} Nf6 {[%emt 0:01:45]} 4. Bg5 {[%emt 0:00:25]} dxe4 5. Nxe4 {[%emt 0:00:34]} Be7 {[%emt 0:01:15]} 6. Nxf6+ {[%emt 0:04:40]} Bxf6 {[%emt 0:02:41]} 7. Be3 {[%emt 0:00:37]} O-O {[%emt 0:01:10]} 8. Nf3 {[%emt 0:00:26]} Bd7 {[%emt 0:03:44]} 9. Bd3 {[%emt 0:01:25]} Bc6 {[%emt 0:01:06]} 10. c3 {[%emt 0:01:54]} Nd7 {[%emt 0:00:06]} 11. Qc2 {[%emt 0:07:00]} g6 {[%emt 0:06:40]} 12. Be4 {[%emt 0:04:57]} Bxe4 {[%emt 0:01:35]} 13. Qxe4 {[%emt 0:00:07]} c6 {[%emt 0:00:01]} 14. h4 {[%emt 0:00:14]} Bg7 {[%emt 0:00:20]} 15. Bg5 {[%emt 0:05:18]} Nf6 {[%emt 0:15:49]} 16. Qf4 {[%emt 0:01:31]} Nh5 {[%emt 0:07:21]} 17. Qd2 {[%emt 0:07:43]} Qd5 {[%emt 0:04:25]} 18. Rh3 {[%emt 0:04:02]} Rfe8 {[%emt 0:03:28]} 19. g4 {[%emt 0:01:20]} Qe4+ {[%emt 0:01:02]} 20. Qe3 {[%emt 0:02:00]} Qxg4 {[%emt 0:01:31]} 21. Nh2 {[%emt 0:02:53]} Qg1+ {[%emt 0:03:41]} 22. Nf1 {[%emt 0:00:06]} e5 {[%emt 0:00:09]} 23. O-O-O {[%emt 0:01:14]} exd4 {[%emt 0:00:09]} 24. Qf3 {[%emt 0:00:20]} h6 {[%emt 0:09:23]} 25. Bd2 {[%emt 0:10:57]} dxc3 {[%emt 0:00:42]} 26. bxc3 {[%emt 0:00:14]} Rad8 {[%emt 0:00:58]} 27. Ne3 {[%emt 0:01:35]} Rxd2 {[%emt 0:00:53]} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "3.4"]
[White "Escobar Medina, Andres F"]
[Black "Morales, Jhon Alexander"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2249"]
[BlackElo "2400"]
[Annotator "RC"]
[PlyCount "75"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:02:31]} c5 {[%emt 0:00:45]} 2. Nf3 {[%emt 0:00:23]} e6 {[%emt 0:00:36]} 3. g3 {[%emt 0:01:30]} b6 {[%emt 0:03:04]} 4. Bg2 {[%emt 0:01:08]} Bb7 {[%emt 0:00:30]} 5. Qe2 {[%emt 0:00:07]} d6 {[%emt 0:00:35]} 6. d4 {[%emt 0:04:18]} cxd4 {[%emt 0:18:05]} 7. Nxd4 {[%emt 0:00:05]} Nc6 {[%emt 0:00:27]} 8. Nxc6 {[%emt 0:00:47]} Bxc6 {[%emt 0:00:05]} 9. O-O {[%emt 0:00:08]} Be7 {[%emt 0:01:30]} 10. Nc3 {[%emt 0:05:29]} Qc8 {[%emt 0:16:40]} 11. Rd1 {[%emt 0:02:11]} a6 {[%emt 0:22:35]} 12. Be3 {[%emt 0:07:38]} Qc7 {[%emt 0:02:44]} 13. Rd2 {[%emt 0:04:08]} b5 {[%emt 0:08:09]} 14. a3 {[%emt 0:04:13]} Nf6 {[%emt 0:01:11]} 15. Bf4 {[%emt 0:03:27]} O-O {[%emt 0:01:46]} 16. e5 {[%emt 0:01:43]} dxe5 {[%emt 0:00:11]} 17. Bxe5 {[%emt 0:00:04]} Qb7 {[%emt 0:00:16]} 18. Bxc6 {[%emt 0:00:23]} Qxc6 {[%emt 0:00:06]} 19. Rad1 {[%emt 0:00:08]} Rfc8 {[%emt 0:01:54]} 20. Bxf6 {[%emt 0:06:02]} Bxf6 {[%emt 0:01:45]} 21. Rd6 {[%emt 0:00:07]} Qc4 {[%emt 0:02:49]} 22. Qf3 {[%emt 0:00:08]} h6 {[%emt 0:03:30]} 23. Rd7 {[%emt 0:00:29]} Rf8 {[%emt 0:05:03]} 24. R1d3 {[%emt 0:02:55]} Rac8 {[%emt 0:03:25]} 25. Ne4 {[%emt 0:00:10]} Be5 {[%emt 0:00:33]} 26. c3 {[%emt 0:02:01]} Qc6 {[%emt 0:00:55]} 27. Nd2 {[%emt 0:02:13]} Bf6 {[%emt 0:03:14]} 28. Ne4 {[%emt 0:02:54]} Be5 {[%emt 0:00:06]} 29. Nd2 {[%emt 0:01:25]} Bf6 {[%emt 0:00:56]} 30. Qxc6 {[%emt 0:02:11]} Rxc6 {[%emt 0:00:04]} 31. Ra7 {[%emt 0:02:07]} Bd8 {[%emt 0:00:29]} 32. Kg2 {[%emt 0:00:26]} Bc7 {[%emt 0:00:51]} 33. Nf3 {[%emt 0:08:16]} e5 {[%emt 0:00:15]} 34. Rd7 {[%emt 0:00:31]} Rc8 {[%emt 0:00:07]} 35. Rxf7 {[%emt 0:09:34]} e4 {[%emt 0:01:23]} 36. Nd4 {[%emt 0:00:04]} Rc4 {[%emt 0:00:08]} 37. Re7 {[%emt 0:00:59]} Kh8 {[%emt 0:00:26]} 38. Rxa6 {[%emt 0:00:29]} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.12"]
[Round "3.5"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Malka, Samuel"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2340"]
[BlackElo "2203"]
[Annotator "RC"]
[PlyCount "96"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:02:41]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:09]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:06]} cxd4 4. Nxd4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:07]} g6 {[%emt 0:00:00]} 6. Be3 {[%emt 0:00:08]} Bg7 {[%emt 0:00:00]} 7. f3 {[%emt 0:00:16]} O-O {[%emt 0:00:00]} 8. Qd2 {[%emt 0:00:03]} Nc6 {[%emt 0:00:00]} 9. g4 {[%emt 0:00:08]} Be6 {[%emt 0:00:02]} 10. O-O-O {[%emt 0:06:35]} Nxd4 {[%emt 0:00:17]} 11. Bxd4 {[%emt 0:00:11]} Qa5 {[%emt 0:00:01]} 12. Kb1 {[%emt 0:02:52]} Rfc8 {[%emt 0:04:47]} 13. Nd5 {[%emt 0:06:30]} Qxd2 {[%emt 0:00:23]} 14. Nxf6+ {[%emt 0:00:07]} Bxf6 {[%emt 0:00:37]} 15. Rxd2 {[%emt 0:00:05]} Bxd4 {[%emt 0:04:17]} 16. Rxd4 {[%emt 0:00:26]} Rc5 {[%emt 0:03:13]} 17. Rb4 {[%emt 0:07:49]} b6 {[%emt 0:03:24]} 18. Be2 {[%emt 0:01:27]} Rac8 {[%emt 0:02:43]} 19. c3 {[%emt 0:05:35]} Kg7 {[%emt 0:03:36]} 20. h4 {[%emt 0:02:06]} f6 {[%emt 0:04:12]} 21. f4 {[%emt 0:02:57]} Bc4 {[%emt 0:06:03]} 22. Bxc4 {[%emt 0:03:54]} Rxc4 {[%emt 0:00:13]} 23. Rxc4 {[%emt 0:00:06]} Rxc4 {[%emt 0:00:08]} 24. Re1 {[%emt 0:00:01]} Kf7 {[%emt 0:05:12]} 25. Kc2 {[%emt 0:07:12]} f5 {[%emt 0:02:44]} 26. Kd3 {[%emt 0:21:30]} Ra4 {[%emt 0:00:15]} 27. a3 {[%emt 0:10:09]} fxg4 {[%emt 0:04:52]} 28. c4 {[%emt 0:00:16]} Ra5 {[%emt 0:03:25]} 29. Rg1 {[%emt 0:00:10]} h5 {[%emt 0:00:17]} 30. Ra1 {[%emt 0:00:32]} Rc5 {[%emt 0:00:51]} 31. b4 {[%emt 0:00:17]} Rc8 {[%emt 0:00:34]} 32. a4 {[%emt 0:04:37]} a5 {[%emt 0:04:06]} 33. bxa5 {[%emt 0:00:36]} bxa5 {[%emt 0:00:11]} 34. Rb1 {[%emt 0:00:05]} Kf6 {[%emt 0:06:18]} 35. Rb5 {[%emt 0:07:00]} Rc5 {[%emt 0:02:12]} 36. Rb6 {[%emt 0:02:00]} g3 {[%emt 0:16:49]} 37. Rb1 {[%emt 0:00:33]} e5 {[%emt 0:01:00]} 38. Rf1 {[%emt 0:00:20]} Rc8 {[%emt 0:10:13]} 39. fxe5+ {[%emt 0:01:31]} Kxe5 {[%emt 0:00:03]} 40. Rf3 {[%emt 0:00:00]} Rb8 {[%emt 0:00:00]} 41. Kc3 {[%emt 0:00:25]} g5 {[%emt 0:04:19]} 42. Rf5+ {[%emt 0:15:25]} Kxe4 {[%emt 0:00:19]} 43. Rxg5 {[%emt 0:00:01]} Kf3 {[%emt 0:02:31]} 44. Kd4 {[%emt 0:01:03]} g2 {[%emt 0:02:31]} 45. Kd5 {[%emt 0:00:06]} Rb1 {[%emt 0:00:48]} 46. Kxd6 {[%emt 0:00:40]} g1=Q {[%emt 0:00:22]} 47. Rxg1 {[%emt 0:00:07]} Rxg1 {[%emt 0:00:04]} 48. c5 {[%emt 0:00:10]} Rg4 {[%emt 0:40:08]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "4.1"]
[White "Heredia Serrano, Carla"]
[Black "Malka, Samuel"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2114"]
[BlackElo "2203"]
[Annotator "TA"]
[PlyCount "214"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,214,-27,-34,-16,-14,-16,-34,-25,-25,-18,-15,7,0,0,-16,-17,-29,-8,-18,-12,-24,7,0,22,-1,61,78,85,87,86,86,71,77,73,35,25,9,3,0,3,2,97,91,87,82,208,143,220,225,398,88,88,14,15,12,12,12,11,8,11,0,11,0,8,8,11,11,9,0,8,8,12,0,3,5,4,4,8,2,3,1,1,0,3,2,5,0,0,-27,0,-41,-36,-51,-22,-97,-20,-46,-34,-44,-14,-24,-14,-14,-14,-15,-15,-116,-116,-191,-184,-185,260,260,260,253,418,418,418,418,418,418,418,410,418,418,418,418,418,418,418,410,418,418,411,0,418,410,410,0,418,411,418,410,410,410,410,410,410,410,418,410,410,410,410,410,410,410,410,410,410,0,410,410,410,410,418,0,410,410,410,410,410,410,410,410,410,410,410,410,410,410,410,410,410,410,410,406,406,410,410,403,346,361,410,406,410,396,29965,29968,29967,29968,29967,29968,29963,29960,29951]} 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 e6 6. Bc4 Bc5 {B21: Sicilian: 2 f4 and Morra Gambit.} 7. O-O Ne7 8. Bg5 f6 {Black is slightly better.} 9. Bf4 {[#]} b5 $146 ({Predecessor:} 9... Ng6 10. Bd6 Bxd6 11. Qxd6 Nc6 12. Rad1 Qe7 13. Qg3 Nce5 14. Bb3 Qc5 15. Nd4 O-O {0-1 (45) Negele,M-Koch,T (2335) Leverkusen 1991}) 10. Bb3 Qb6 11. a4 Bb7 12. Qe2 {[%cal Ra4b5]} O-O 13. axb5 axb5 14. Rxa8 (14. Nxb5 Bxe4 $1 {[%mdl 512]} 15. Rxa8 Bxa8 $17) 14... Bxa8 15. Rd1 Bc6 16. Nd5 $1 {[%cal Rd5b6]} Qb7 17. Be3 Bd6 (17... Bxd5 $11 18. exd5 Bxe3 19. Qxe3 Nxd5 20. Bxd5 exd5) 18. Nxf6+ $1 $14 Rxf6 19. Rxd6 Bxe4 20. Ng5 $1 Bg6 21. Nxe6 $1 Rxe6 22. Bxe6+ dxe6 23. Bc5 (23. Bg5 {seems wilder.} Nec6 24. Qxe6+ Bf7 25. Qf5 h6 26. Bf4) 23... Qc8 24. b4 Bf7 25. Qxb5 Nbc6 (25... Nd5 $11) 26. h3 $1 $16 {[%mdl 1024] White has strong compensation.} Be8 27. Qe2 {Hoping for b5.} Nd5 (27... Kf7 $16 {was worth a try.}) 28. Rxe6 $18 (28. Qxe6+ Qxe6 29. Rxe6 Kf7 $14) 28... Bf7 (28... Nf6 $16 29. Rd6 Bd7) 29. Rd6 $1 Ncxb4 $2 (29... h5 30. Qe1 Nce7) 30. Bxb4 $2 (30. Qg4 $18 {is the precise move to win.} Qxg4 31. Rd8+ (31. hxg4 h6 $11) 31... Be8 32. Rxe8+ (32. hxg4 Kf7 $14) 32... Kf7 33. Rf8+ (33. hxg4 $2 Kxe8 34. g3 Nc6 $19) 33... Kg6 34. hxg4) 30... Nxb4 $16 31. Qd2 (31. Qe4 $16 Nd5 32. Rxd5 Bxd5 33. Qxd5+ Kf8 34. g4) 31... Nc6 $11 32. Qc3 Be8 33. Qc4+ Kh8 34. Qc5 Kg8 35. Qc4+ Kh8 36. Qc5 h6 37. Qc3 {aiming for Rxh6+.} Kh7 38. Qc2+ Kh8 39. Qc3 Kg8 40. Qc4+ Kh7 41. Qc5 Kg8 42. g4 Qb7 43. Qd5+ Kf8 44. Qf5+ Qf7 45. Qc5 {Rf6+ is the strong threat.} Ne7 46. Rd3 Kg8 47. Re3 Nc6 48. Kg2 Qd7 49. Rc3 Bf7 50. Kh2 (50. Kg3 $5 {[%cal Rc5c6]} Nd8 51. f4 $11) 50... Ne7 51. Rc2 Kh7 52. Re2 (52. Rb2 $11 {keeps the balance.}) 52... Nd5 (52... Ng6 $1 $17) 53. Rd2 Qe6 {Threatens to win with ...Qe5+.} 54. Qd4 Nf6 55. f3 Qe1 56. Qd3+ Bg6 57. Qe2 Qc1 58. h4 (58. Qd1 $11 Qc7+ 59. Kg2) 58... Qc7+ 59. Kg2 (59. Kh1 $17) 59... h5 $1 $19 {[%cal Rh5g4] And now ...hxg4 would win.} 60. g5 {[#]} Nd7 $4 {[%mdl 8192]} (60... Ng8 $1 $19 {White must now prevent ...Ne7.} 61. Qe6 Ne7) 61. Qe7 $18 {Cut Off at move 61} Bf5 {[#]} 62. g6+ $1 {[%mdl 512]} Bxg6 $2 (62... Kxg6 {was called for.} 63. Qg5+ Kf7) 63. Qxd7 {[%mdl 4096] Endgame KQR-KQB} ({Weaker is} 63. Rxd7 Qc3 $18) 63... Qf4 64. Qd4 Qf5 65. Re2 Qf8 66. Qe5 Qa3 67. Qe3 Qd6 68. Rd2 Qf6 69. Rd4 Qc6 70. Qd2 Qe8 71. Rd8 Qe7 72. Rd4 Qe8 $1 73. Kg3 Qe5+ 74. Kg2 Qe8 $1 75. Rb4 Qe7 76. Kg3 Qe5+ {[#]} 77. Rf4 $1 Qe7 78. Kh3 Qe6+ 79. Kg2 Qe7 80. Kf2 Qc5+ 81. Qd4 Qc2+ 82. Kg3 Qc1 83. Qf2 Qc3 84. Qe2 Qc1 85. Qf2 Qc3 $1 86. Rd4 Qc7+ 87. Kg2 Qe7 88. Qd2 $2 (88. Qb2 $18) 88... Qf6 $2 {[%mdl 8192]} (88... Qe8 $1 $11 {and Black has nothing to worry.} 89. Rd7 Bf5) 89. Qf4 Qe6 90. Kf2 Qb6 91. Qd6 Qb2+ 92. Rd2 Qa1 93. Rd1 Qb2+ 94. Kg3 Qe2 {intending ...Be4.} 95. Qd5 Qe3 96. Qd4 Qe2 97. Ra1 Qe7 98. Kf2 Qc7 99. Kg2 Qc2+ 100. Kg3 Qc7+ 101. Qf4 Qc3 102. Rc1 Qa5 103. Qd4 Bf5 $2 (103... Kh8 $18 104. Rc5 Qe1+ 105. Kg2 Qe2+ 106. Qf2 Qe6) 104. Qc5 {White mates.} Qxc5 105. Rxc5 Bd3 106. Rxh5+ Kg6 107. Rd5 Bb1 {What a bad dream for Black.  Weighted Error Value: White=0.22/Black=0.34} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "4.2"]
[White "Hernandez Sanchez, Jairo Andres"]
[Black "Argote Heredia, Valentina"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2394"]
[BlackElo "2150"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,51,8,9,54,54,57,48,52,55,71,72,72,76,80,81,81,75,89,72,97,64,104,104,97,104,97,97,104,97,97,54,158,156,156,143,147,145,660,461]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. O-O Nf6 8. Bg5 e5 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 9. Qd3 Bc6 10. Nc3 Be7 {White is slightly better.} 11. Rfd1 Qb6 12. Bxf6 Bxf6 {[#]} 13. a4 $146 ({Predecessor:} 13. Nd2 O-O 14. Nc4 Qc5 15. Ne3 Rad8 16. Ncd5 Bg5 17. b4 Qa7 18. a4 Bxe3 19. Nxe3 {1-0 (48) Lange,J (2126)-Junker,M (2093) Willingen 2020}) 13... Be7 14. Nd2 O-O 15. Nc4 Qc5 16. Ne3 Rfc8 17. b4 Qa7 18. Ncd5 Bxd5 19. Nxd5 ({Don't play} 19. exd5 $6 a5 $11) 19... Bd8 20. a5 Rc6 21. c3 Qb8 22. f4 b6 (22... exf4 $14 23. Rf1 Bg5) 23. axb6 Bxb6+ 24. Kh1 Bd8 25. f5 f6 $2 {[%mdl 8192] [#]} (25... Qb7 $16 26. Ra2 Rac8) 26. Ne7+ {[%mdl 64] Clearance.  Weighted Error Value: White=0.07/Black=0.51} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "4.3"]
[White "Soto, Miguel Angel"]
[Black "Escobar Medina, Andres F"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2273"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,38,0,0,0,0,0,9,0,6,8,0,20,12,-35,-24,-21,-4,-9,-8,-6,0,-39,-27,-70,-73,-76,-22]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 $1 {8.Nf3 is better than 8.Nge2. E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} cxd4 9. Nxd4 Nd7 10. Bf4 {The position is equal.} Ndc5 11. O-O {[%cal Rd3e4]} Bxc3 12. bxc3 Bd7 13. Bxe4 dxe4 14. Qe2 Qa5 {[#]} 15. Nb3 $146 ({Predecessor:} 15. Bd2 Rac8 16. f3 exf3 17. Rxf3 Bc6 18. Rf4 Nd7 19. Re1 Qxa2 20. Rg4 g6 21. Qf2 Qxc4 {0-1 (32) Collado Barbas,L (2056)-Jimenez Fernandez,R (1882) Linares 2020}) 15... Nxb3 16. axb3 Qxc3 17. Qxe4 Qxb3 18. Be3 Bc6 19. Qg4 {[#] And now Bh6! would win.} Qd3 {Weighted Error Value: White=0.14/Black=0.02} (19... Qc3 $17) 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "4.4"]
[White "Brizuela Abreu, Ronald Jesus"]
[Black "Pazos Gambarrotti, Plinio"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2361"]
[BlackElo "2109"]
[Annotator "ChessBase"]
[PlyCount "118"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:07]} 3. Nc3 {[%emt 0:00:00]} d5 {[%emt 0:00:11]} 4. Nf3 {[%emt 0:00:02]} Bb4 {[%emt 0:00:17]} 5. Qa4+ {[%emt 0:00:37]} Nc6 {[%emt 0:00:07]} 6. Bg5 {[%emt 0:00:42]} Bd7 {[%emt 0:06:01]} 7. Qb3 {[%emt 0:03:53]} dxc4 {[%emt 0:02:42]} 8. Qxc4 {[%emt 0:00:55]} h6 {[%emt 0:04:22]} 9. Bh4 {[%emt 0:01:33]} g5 {[%emt 0:08:17]} 10. Bg3 {[%emt 0:00:02]} Ne4 {[%emt 0:01:47]} 11. e3 {[%emt 0:00:36]} h5 {[%emt 0:18:22]} 12. Bd3 {[%emt 0:04:17]} Nd6 {[%emt 0:03:12]} 13. Qb3 {[%emt 0:00:19]} Qe7 {[%emt 0:04:39]} 14. h4 {[%emt 0:01:24]} g4 {[%emt 0:01:36]} 15. Ne5 {[%emt 0:01:27]} Nf5 {[%emt 0:02:21]} 16. Bxf5 {[%emt 0:04:40]} exf5 {[%emt 0:00:15]} 17. Nxd7 {[%emt 0:00:03]} Kxd7 {[%emt 0:07:22]} 18. Qd5+ {[%emt 0:03:02]} Kc8 {[%emt 0:00:05]} 19. Qxf5+ {[%emt 0:00:08]} Kb8 {[%emt 0:00:02]} 20. O-O {[%emt 0:00:13]} Bd6 {[%emt 0:00:52]} 21. Nd5 {[%emt 0:01:15]} Qd8 {[%emt 0:02:01]} 22. Bxd6 {[%emt 0:01:10]} Qxd6 {[%emt 0:00:11]} 23. g3 {[%emt 0:00:52]} Ne7 {[%emt 0:00:48]} 24. Nxe7 {[%emt 0:00:13]} Qxe7 {[%emt 0:00:04]} 25. Rfc1 {[%emt 0:00:03]} Qe6 {[%emt 0:00:39]} 26. Rc5 {[%emt 0:00:45]} b6 {[%emt 0:00:33]} 27. Qxe6 {[%emt 0:00:27]} fxe6 {[%emt 0:00:05]} 28. Re5 {[%emt 0:00:09]} Rh6 {[%emt 0:00:11]} 29. Rc1 {[%emt 0:00:03]} Kb7 {[%emt 0:00:20]} 30. b4 {[%emt 0:00:27]} Rd8 {[%emt 0:00:30]} 31. Kf1 {[%emt 0:00:36]} Rd5 {[%emt 0:00:21]} 32. Re4 {[%emt 0:00:39]} a5 {[%emt 0:00:24]} 33. a3 {[%emt 0:01:19]} Kc8 {[%emt 0:01:39]} 34. Rf4 {[%emt 0:00:17]} Rh7 {[%emt 0:00:54]} 35. Ke2 {[%emt 0:00:27]} Kd7 {[%emt 0:00:19]} 36. Kd3 {[%emt 0:00:13]} axb4 {[%emt 0:00:20]} 37. axb4 {[%emt 0:00:02]} e5 {[%emt 0:00:15]} 38. Rf5 {[%emt 0:00:22]} Re7 {[%emt 0:01:40]} 39. Ke4 {[%emt 0:01:33]} Rb5 {[%emt 0:00:29]} 40. Rxe5 {[%emt 0:00:00]} Rexe5+ {[%emt 0:00:00]} 41. dxe5 {[%emt 0:01:31]} Rxb4+ {[%emt 0:00:18]} 42. Kf5 {[%emt 0:00:08]} Rb2 {[%emt 0:00:16]} 43. e6+ {[%emt 0:00:57]} Kd8 {[%emt 0:00:26]} 44. Kg5 {[%emt 0:02:12]} c5 {[%emt 0:00:52]} 45. Kxh5 {[%emt 0:00:08]} Ke7 {[%emt 0:00:29]} 46. Kxg4 {[%emt 0:00:14]} Rxf2 {[%emt 0:00:20]} 47. Rb1 {[%emt 0:00:26]} Kxe6 {[%emt 0:00:12]} 48. Rxb6+ {[%emt 0:00:02]} Kd5 {[%emt 0:00:06]} 49. h5 {[%emt 0:00:21]} c4 {[%emt 0:00:06]} 50. Rb5+ {[%emt 0:00:04]} Ke4 {[%emt 0:00:09]} 51. Rc5 {[%emt 0:00:07]} Kd3 {[%emt 0:00:08]} 52. h6 {[%emt 0:00:15]} c3 {[%emt 0:00:05]} 53. Kg5 {[%emt 0:00:52]} c2 {[%emt 0:00:26]} 54. h7 {[%emt 0:00:37]} Rh2 {[%emt 0:00:24]} 55. g4 {[%emt 0:00:09]} Rxh7 {[%emt 0:00:14]} 56. e4 {[%emt 0:00:50]} Re7 {[%emt 0:01:30]} 57. Kf5 {[%emt 0:00:49]} Rxe4 {[%emt 0:00:37]} 58. Rxc2 {[%emt 0:00:18]} Rxg4 {[%emt 0:00:06]} 59. Kxg4 {[%emt 0:00:05]} Kxc2 {[%emt 0:00:03]} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "4.5"]
[White "Morales, Jhon Alexander"]
[Black "Mateus, Alejandro"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2400"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,53,20,7,34,30,28,-1,12,10,37,35,58,69,56,0,42,-64,0,-43,43,41,71,51,60,-22,-16,-15,0,0,-19,-66,-34,-123,-83,-45,-57,-62,-44,-238,-188,-208,-41,-1266]} 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. f3 Nbd7 5. Be3 e5 6. Nge2 Be7 7. Qd2 h5 {B07: Pirc Defence: Miscellaneous Systems.} 8. O-O-O b5 {[#]} 9. Kb1 $146 ({Predecessor:} 9. dxe5 dxe5 10. Ng1 Qa5 11. a3 Nc5 12. Kb1 Qc7 13. Qf2 Ne6 14. h4 O-O 15. Nh3 {0-1 (38) Schinkowski,C (1867)-Gasthofer,A (2212) Greifswald 2001}) 9... O-O {The position is equal.} 10. Ng3 exd4 11. Bxd4 b4 12. Nce2 c5 13. Bf2 (13. Bxf6 $14 Nxf6 14. Nf4) 13... Nb6 14. Nc1 (14. Nf4 $14) 14... h4 (14... a5 $15) 15. Nge2 Nc4 ({Better is} 15... a5 $15) 16. Qe1 $14 Nd7 17. Nf4 Ncb6 18. Nd5 (18. g3 $1 $14) 18... Nxd5 $11 19. Rxd5 Nb6 $36 {[%mdl 2048] Black has some pressure.} 20. Rh5 {[%cal Rf2h4]} g6 21. Rxh4 Bf6 $1 22. f4 (22. Nd3 $1 $15) 22... Na4 ({Of course not} 22... Bxh4 $6 23. Bxh4 f6 24. Qg3 $11) 23. e5 dxe5 {[#] aiming for ...e4.} 24. Bb5 $1 Nxb2 $1 {Hoping for ...e4.} (24... Bxh4 $2 25. Bxh4 Qa5 26. Bc6 $18) 25. Kxb2 $2 (25. fxe5 $15 Bxh4 26. Bxh4) 25... e4+ 26. Kb1 Qa5 $2 (26... e3 $19 {Threatens to win with ...Qd4.} 27. Bxe3 Bxh4) 27. Qd1 $2 {[%mdl 8192] Weighted Error Value: White=0.42/Black=0.30} ({Don't blunder} 27. Qxe4 $2 b3 $19) ({Wrong is} 27. Bxc5 $2 Qxb5 28. Bxf8 Kxf8 $19) (27. a4 $15 c4 28. g4 (28. Qxe4 $2 Bf5 $19)) 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "5.1"]
[White "Pazos Gambarrotti, Plinio"]
[Black "Hernandez Sanchez, Jairo Andres"]
[Result "1/2-1/2"]
[ECO "E70"]
[WhiteElo "2109"]
[BlackElo "2394"]
[Annotator "ChessBase"]
[PlyCount "31"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:03:24]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:05]} g6 {[%emt 0:00:10]} 3. Nc3 {[%emt 0:00:06]} Bg7 {[%emt 0:00:24]} 4. e4 {[%emt 0:00:06]} d6 {[%emt 0:00:05]} 5. Nge2 {[%emt 0:00:11]} O-O {[%emt 0:00:17]} 6. Ng3 {[%emt 0:00:05]} e5 {[%emt 0:03:36]} 7. d5 {[%emt 0:04:40]} a5 {[%emt 0:00:16]} 8. Be2 {[%emt 0:00:06]} Na6 {[%emt 0:00:06]} 9. h4 {[%emt 0:00:06]} h5 {[%emt 0:00:25]} 10. Bg5 {[%emt 0:00:09]} Qe8 {[%emt 0:00:29]} 11. Qd2 {[%emt 0:00:17]} Nc5 {[%emt 0:00:28]} 12. Bh6 {[%emt 0:00:15]} Ng4 {[%emt 0:12:37]} 13. Bxg7 {[%emt 0:01:40]} Kxg7 {[%emt 0:00:12]} 14. Bxg4 {[%emt 0:00:24]} Bxg4 {[%emt 0:02:34]} 15. f3 {[%emt 0:00:23]} Bd7 {[%emt 0:00:36]} 16. Nxh5+ {[%emt 0:00:10]} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "5.2"]
[White "Argote Heredia, Valentina"]
[Black "Heredia Serrano, Carla"]
[Result "0-1"]
[ECO "B18"]
[WhiteElo "2150"]
[BlackElo "2114"]
[Annotator "NA"]
[PlyCount "52"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:51]} c6 {[%emt 0:05:39]} 2. d4 {[%emt 0:00:21]} d5 {[%emt 0:00:07]} 3. Nc3 {[%emt 0:00:07]} dxe4 {[%emt 0:00:04]} 4. Nxe4 {[%emt 0:00:06]} Bf5 {[%emt 0:00:02]} 5. Ng3 {[%emt 0:00:08]} Bg6 {[%emt 0:00:04]} 6. h4 {[%emt 0:00:07]} h6 {[%emt 0:00:04]} 7. Nh3 {[%emt 0:00:11]} e6 {[%emt 0:00:13]} 8. Nf4 {[%emt 0:03:11]} Bh7 {[%emt 0:00:05]} 9. Bc4 {[%emt 0:00:08]} Nf6 {[%emt 0:00:10]} 10. O-O {[%emt 0:00:25]} Bd6 {[%emt 0:00:28]} 11. c3 {[%emt 0:02:37]} O-O {[%emt 0:00:28]} 12. Re1 {[%emt 0:07:43]} Nbd7 {[%emt 0:05:18]} 13. Nxe6 {[%emt 0:05:48]} fxe6 {[%emt 0:23:19]} 14. Rxe6 {[%emt 0:00:10]} Bxg3 {[%emt 0:00:04]} 15. Rxf6+ {[%emt 0:04:57]} Kh8 {[%emt 0:00:10]} 16. Rxf8+ {[%emt 0:00:08]} Qxf8 {[%emt 0:00:11]} 17. fxg3 {[%emt 0:00:07]} Nf6 {[%emt 0:00:10]} 18. Bf4 {[%emt 0:03:47]} Re8 {[%emt 0:01:27]} 19. Bd3 {[%emt 0:03:40]} Nd5 {[%emt 0:20:33]} 20. Bxh7 {[%emt 0:07:26]} Nxf4 {[%emt 0:00:08]} 21. Bc2 {[%emt 0:04:36]} Ne2+ {[%emt 0:02:53]} 22. Kh2 {[%emt 0:00:04]} Re3 {[%emt 0:00:19]} 23. Qf1 {[%emt 0:16:16]} Qd6 {[%emt 0:03:30]} 24. Qf2 {[%emt 0:05:55]} Nxg3 {[%emt 0:00:13]} 25. Re1 {[%emt 0:02:36]} Nf1+ {[%emt 0:04:17]} 26. Kg1 {[%emt 0:00:16]} Qh2+ {[%emt 0:33:04]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "5.3"]
[White "Escobar Medina, Andres F"]
[Black "Brizuela Abreu, Ronald Jesus"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2249"]
[BlackElo "2361"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,106,25,38,35,38,26,30,28,26,28,26,31,49,12,49,25,55,57,104,41,69,22,17,17,17,26,27,33,56,31,69,66,100,42,43,18,21,24,39,31,86,0,0,-8,-16,-20,-13,-79,0,0,76,-47,-39,-14,-33,-54,-57,-56,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29999]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 a5 8. f4 {C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines.} a4 9. a3 cxd4 10. cxd4 {White has an edge.} Nb6 11. O-O g6 12. Nf3 Bd7 13. Bd2 h5 {[#]} 14. Qc2 $146 ({Predecessor:} 14. h3 h4 15. Qe1 Be7 16. Kh2 Nc4 17. Bxc4 dxc4 18. Nc3 Ra5 19. Be3 Rd5 20. f5 gxf5 21. Nxd5 exd5 {0-1 (54) Rosen,E (2179)-Guo,A (2121) ICC INT 2010}) 14... Rg8 15. Ng5 Be7 16. Rac1 ({Better is} 16. Rf3 $16) 16... Rg7 17. h3 Na5 18. Bxa5 Rxa5 19. Qd2 Ra8 20. Rc2 Bc6 21. Nc3 Qd7 22. Qe2 Rd8 23. Nf3 ({White should try} 23. Nb5 $16) 23... Rg8 24. g4 hxg4 25. hxg4 Rh8 26. Rf2 Qc8 (26... Qc7 $14) 27. Rh2 (27. Ng5 $16) 27... Kd7 $11 28. f5 gxf5 29. gxf5 Rdg8+ 30. Kh1 (30. Kf1 $11 {was the only way to keep the balance.}) 30... Nc4 ({Black should play} 30... Rxh2+ $17 31. Nxh2 Qf8) 31. f6 Bd8 {[#]} (31... Rxh2+ $11 {keeps the balance.} 32. Nxh2 Bf8) 32. Bh7 (32. Nxd5 $1 $16 b5 33. Nb4 (33. Bxc4 bxc4 34. Nb4 Rxh2+ 35. Kxh2 Ba8 $11)) 32... Rg4 $15 33. Qd3 Ba5 34. Rcg2 Rxg2 35. Rxg2 {And now Ng5 would win.} Bxc3 (35... Qf8 $15 36. Rh2 b5) 36. bxc3 $11 {[#] Ng5 is the strong threat.The position is equal.} Qf8 37. Rg7 $1 {Strongly threatening Ng5.} Kc8 ({Wrong is} 37... Nxa3 $2 38. Ng5 $18) 38. Ng5 $1 {[%cal Rg5f7]} Be8 ({Avoid the trap} 38... Nxa3 $2 39. Nxf7 Be8 40. Nxh8 $18) 39. Qb1 Qxa3 40. Nxf7 Bxf7 41. Rxf7 b6 42. Qg1 Qxc3 43. Qg7 {[%cal Rg7h8]} Qe1+ 44. Kg2 {[%cal Rg7h8]} Qe2+ 45. Kh3 {[%cal Rg7h8]} Qd3+ 46. Kh2 {[%cal Rg7h8]} Qe2+ 47. Kh3 {[%cal Rg7h8]} Qe3+ 48. Kh2 {[%cal Rg7h8]} Qf4+ 49. Kh1 {[%cal Rg7h8]} Qf1+ 50. Kh2 {[%cal Rg7h8]} Qe2+ 51. Kh3 {[%cal Rg7h8]} Qe3+ 52. Kh2 {[%cal Rg7h8]} Qe2+ 53. Kh3 {[%cal Rg7h8]} Kb8 $2 {[%mdl 40960] Weighted Error Value: White=0.15/Black=0.13. An unexpected result.} (53... Qf3+ $11 54. Kh4 Qh1+ 55. Kg5 Qg2+ 56. Kh4 Qh2+ 57. Kg4 Qg1+ 58. Kh5 Qh2+ 59. Kg4 Qg2+ 60. Kh4 Qh1+ 61. Kg5 Qg2+ 62. Kh4) 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "5.4"]
[White "Mateus, Alejandro"]
[Black "Soto, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "2353"]
[BlackElo "2273"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,93,66,59,59,66,74,72,55,68,83,148,104,112,107,211,224,193,214,214,210,212,197,186,147,175,160,172,155,196,138,174,177,156,125,225,181,187,188,169,169,206,188,423,405,506,485,439,170,165,81,256,231,203,191,675,622,583,117,123,0,548,0,0,0,88,-22,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. g4 Nxd4 10. Bxd4 Be6 11. h4 {11.0-0-0 is not played anymore.} Qa5 12. h5 Rfc8 13. a3 {[%cal Ba2a3,Ba3b4][%mdl 32] B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} b5 14. h6 Bh8 15. g5 {And now b4 would win.White is better.} b4 16. Na2 {[#]} Bxa2 $146 (16... Nxe4 $142 17. fxe4 Rxc2 18. Qxc2 Bxd4 19. Nxb4 Qxg5) ({Predecessor:} 16... Nd7 17. axb4 Qc7 18. Nc3 Ne5 19. Be2 Nc4 20. Bxc4 Qxc4 21. Bxh8 Kxh8 22. Ra4 Bd7 {1-0 (49) Kupreichik,V (2485)-Starostits,I (2398) Bled 2002}) 17. gxf6 (17. Rxa2 $2 Nxe4 $1 {[%mdl 512]} 18. fxe4 Rxc2 $19) 17... e5 18. axb4 (18. Rxa2 exd4 19. Bd3 Rab8 $15) 18... Qd8 (18... Qc7 $16) 19. Bxe5 $1 $18 (19. Rxa2 exd4 20. Bd3 (20. Qxd4 Rxc2 21. e5 Qc8 $17) 20... Qxf6 $14) 19... dxe5 20. Qxd8+ (20. Rxa2 Qxf6 21. Bd3 Qxf3 $14) 20... Rxd8 21. Rxa2 Bxf6 22. Bc4 $1 Rac8 23. b3 Rc7 24. Ke2 Bg5 25. c3 Kf8 26. Rc2 (26. Rha1 $18) 26... Ke7 27. Bd5 Rb8 28. Kd3 f5 (28... Kd8 $16 29. Rg2 Be7 30. Bxf7 Bxb4) 29. Ra2 fxe4+ 30. fxe4 (30. Bxe4 Rd8+ 31. Ke2 Rxc3 $11) 30... Rf8 {and if ...Rf3+ works, Black does fine.} 31. Rh3 $1 Rf6 32. c4 $1 Bf4 $2 (32... Rf1 {was worth a try.} 33. Ke2 Rb1) 33. Rh1 g5 34. Rha1 Rxh6 35. Rxa7 $2 (35. c5 a6 36. Rxa6 Rxa6 37. Rxa6) 35... Rh3+ 36. Ke2 (36. Kc2 $1 $18 Rh2+ 37. Kd3 Rh3+ 38. Ke2 Rxa7 39. Rxa7+ Kf6 40. c5 Re3+ 41. Kd2 Rxe4+ 42. Kc3) 36... Rxa7 $2 (36... Re3+ $16 37. Kf1 Rxa7 38. Rxa7+ Kf6) 37. Rxa7+ $16 {[%mdl 4096] Endgame KRB-KRB} Kf6 38. c5 g4 $2 (38... Re3+ 39. Kf1 Rf3+ 40. Ke2 Re3+ 41. Kf1 Rf3+ 42. Kg2 Rg3+ 43. Kf1 Rf3+) 39. c6 Re3+ 40. Kf1 $2 (40. Kd2 $1 $18 {is the precise move to win.} Rxe4+ 41. Kd1 Rd4+ {[%mdl 64] Double Attack} 42. Kc2) 40... Rf3+ 41. Ke2 $2 {[%mdl 8192]} (41. Ke1 $16 g3 42. Ra2 (42. Rxh7 {is a self mate.} g2 43. Ke2 g1=Q 44. Rf7+ Kg6 45. Rg7+ Kxg7 46. Kxf3 Qf1+ 47. Kg4 Qg2+ 48. Kh4 Qg5+ 49. Kh3 Qg3#)) 41... Re3+ $18 {[#]} 42. Kd1 $2 ({White has to play} 42. Kd2 $1 $18 Rxe4+ 43. Kd1 Rd4+ {[%mdl 64] Double Attack} 44. Kc2) 42... g3 $11 {( -> ...g2)} 43. Ra2 $1 {aiming for c7.} (43. Rxh7 {gets mated.} g2 44. Rf7+ Kg6 45. Rxf4 g1=Q+ 46. Kc2 Qh2+ 47. Kd1 Qxf4 48. Be6 Qf1+ 49. Kd2 Qf2+ 50. Kd1 Re1#) 43... Ke7 {[#]} (43... Rc3 $11 44. Ke2 h5) 44. Rc2 (44. b5 $1 $16 {[%cal Rb5b6]} Rc3 45. Rg2 Rc1+ 46. Ke2 Rc2+ 47. Kf3 Rxg2 48. Kxg2) 44... Rd3+ {The position is equal.} 45. Ke1 {Strongly threatening c7.} Rd2 $1 {[%cal Rd2c2]} 46. Rxd2 Bxd2+ 47. Kf1 {Weighted Error Value: White=0.63/Black=0.45} ({Avoid the trap} 47. Kxd2 $2 g2 $19) 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.13"]
[Round "5.5"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Morales, Jhon Alexander"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2340"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,111,40,56,48,75,71,78,79,83,-15,-4,-12,13,-58,-53,-33,-6,-36,-30,-29,-10,-122,-113,-110,-113,-106,-106,-123,-129,-103,-87,-86,-86,-127,-114,-116,-125,-115,-107,-99,-10,-10,0,0,0,-58,-29,-195,0,-7,0,-105,-107,-206,-10,-8,-14,-16,-10,-25,0,0,0,0,0,0,3,1,2,0,0,0,0,0,71,55,138,91,116,36,38,31,34,19,33,0,173,0,150,142,1540,1248,860,444,12850,29982,29982,29983]} 1. e4 {Mekhitarian,K} c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Be3 Qc7 8. a3 d6 9. g4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} a6 10. g5 Nd7 11. f4 {White is better.} b5 {[%cal Bb7b5,Bb5b4][%mdl 32] [#]} 12. a4 $146 ({Better is} 12. h4 $16) ({Predecessor:} 12. h4 Bb7 13. h5 Nb6 14. Qf3 b4 15. Qf2 bxc3 16. Bxb6 Qc8 17. bxc3 Be7 18. O-O-O {1-0 (41) Bogner,S (2599)-Naiditsch,A (2702) Douglas 2017 CBM 181 [Mekhitarian,K]}) 12... b4 $11 13. Ne2 Bb7 14. Ng3 (14. Bg2 $11) 14... g6 $1 $15 15. Qd2 Nc5 16. Nxc5 dxc5 17. Bg2 Na5 18. O-O (18. Qe2 $11) 18... Nc4 $17 19. Qe2 Nxe3 20. Qxe3 c4 21. Qe2 h6 22. e5 Bc5+ 23. Kh1 hxg5 24. Bxb7 Qxb7+ 25. Ne4 O-O-O $1 26. Qg2 Be7 27. fxg5 Rd4 ({Black should try} 27... Rh7 $17 {aiming for ...Rdh8.} 28. Rae1 Kb8) 28. Rf4 $1 $11 Kb8 {Threatens to win with ...Bxg5!} 29. c3 Rd5 30. cxb4 (30. Rxf7 $11 Rxe5 31. Re1) 30... Bxb4 31. Rg4 $2 (31. Nd6 $11 Bxd6 32. exd6) 31... Ka8 $2 (31... Rhd8 $19 {White must now prevent ...Rd1+.} 32. Rf1 Rxe5) 32. Rf1 Rhd8 33. Qf3 (33. Nc3 $11 Rxe5 34. Qxb7+ Kxb7 35. Rxc4 Bxc3 36. bxc3) 33... Rxe5 $17 34. Qxf7 (34. Ng3 $17 {was the only defense.}) 34... Qxf7 $2 (34... Rd7 $19 35. Qf3 (35. Qxg6 $2 Rg7 $19) 35... Rd4) 35. Rxf7 $11 Rd4 36. Rh4 {Rh8+ would kill now.} Ba5 37. Rh8+ Rd8 38. Rxd8+ Bxd8 {[%mdl 4096] Endgame KRB-KRN} 39. Nd6 {Hoping for Rf8.} Bxg5 40. Nxc4 Re4 41. b3 Kb8 42. Rg7 Bf4 43. Rxg6 Re2 44. h4 e5 (44... Rh2+ $11 {remains equal.} 45. Kg1 Rxh4) 45. Rxa6 Rc2 (45... Rh2+ $14 46. Kg1 Rxh4) 46. Re6 Rc3 47. Nxe5 (47. Re8+ $16 Kc7 48. a5 (48. Nxe5 Rxb3 49. Nc4 Rh3+ {[%mdl 64] Double Attack} 50. Kg2 Rxh4 $11)) 47... Rxb3 $14 48. Ng6 Rb4 49. a5 {[%cal Ba4a5,Ba5a6][%mdl 32] Strongly threatening Rb6+.} Bc7 50. a6 {Kg2 is the strong threat.} Rb2 $2 {[#]} (50... Bg3 $11 {and Black is okay.}) 51. Kg1 $2 ({White must play} 51. Ne5 $1 $18 {[%cal Re5c6]} Rb1+ 52. Kg2 Bxe5 53. Rxe5) 51... Ra2 {[#]} (51... Bh2+ $11 52. Kf1 Bg3) 52. Ne7 $1 $16 {And now h5 would win.} Ra4 $2 {[%mdl 8192]} (52... Bh2+ $16 53. Kf1 Kc7 54. Nd5+ Kd7) 53. h5 $18 Ka7 54. h6 Rxa6 (54... Rh4 $142 55. Nd5 Ba5) 55. Rxa6+ Kxa6 56. Nc6 {Weighted Error Value: White=0.38/Black=0.41} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.14"]
[Round "6.1"]
[White "Morales, Jhon Alexander"]
[Black "Malka, Samuel"]
[Result "1/2-1/2"]
[ECO "B55"]
[WhiteElo "2400"]
[BlackElo "2203"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,38,21,12,13,20,20,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+ Nbd7 7. Nf5 d5 8. exd5 a6 9. Bxd7+ Qxd7 10. Ne3 b5 {The position is equal.} 11. Nc3 {B55: Sicilian: 2...d6 3 d4 cxd4 4 Nxd4 Nf6 5 f3.} Bb7 12. a3 Rd8 {[#]} 13. Qd3 $146 ({Predecessor:} 13. O-O Nxd5 14. Nexd5 Bxd5 15. Be3 {½-½ (15) Supancic,D (2375)-Buzeti,J (2270) Ljubljana 2012}) 13... Nxd5 14. Nexd5 Bxd5 15. Nxd5 Qxd5 16. Qxd5 Rxd5 17. Bd2 Bc5 18. Ke2 Ke7 19. Rhd1 Ke6 {A rather calm draw.  Weighted Error Value: White=0.01/Black=0.00} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.14"]
[Round "6.2"]
[White "Soto, Miguel Angel"]
[Black "Palencia Morales, Wilson Guillermo"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2273"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,6,37,16,8,4,18,10,16,13,0,0,4,0,0,0,0,0,8,0,5,0,1,0,1,1,1,1,1,2,8,0,10,6,14,6,5,0,5,5,5,0,0,0,0,0,14,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-268,638,529,1733,1429,1702,1431,2089,2004,5088,5081,1611,1257,29980,29981,29981,29982,29979]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 d5 6. exd5 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} Qxd5 {...Bxf2+! is the strong threat.} 7. Bc4 Qd6 8. b4 {The position is equal.} Bb6 9. a4 {aiming for a5.} O-O 10. Nbd2 Bf5 11. Ba3 {Hoping for b5.} e4 $1 {[%cal Re4f3]} (11... Bxd3 12. b5 $16) 12. dxe4 Nxe4 13. Nxe4 Bxe4 14. Qxd6 cxd6 15. O-O-O Rac8 {Strongly threatening ...Ne5.} 16. Bd5 Bxd5 17. Rxd5 Ne5 18. Nxe5 dxe5 19. Kb2 Rfd8 20. Rhd1 {[#]} Rxd5 $146 ({Predecessor:} 20... e4 21. R5d2 Rxd2+ 22. Rxd2 Rd8 23. Re2 f5 24. Kc2 Kf7 25. f3 exf3 26. gxf3 Re8 27. Rd2 Rd8 28. Re2 Re8 29. Rd2 Rd8 30. Re2 {½-½ (30) Robson,R (2673)-So,W (2770) Lichess.org INT 2020}) 21. Rxd5 $11 {[%mdl 4096] Endgame KRB-KRB} f6 22. f3 Rd8 23. Rxd8+ Bxd8 {KB-KB} 24. Kb3 Kf7 25. Kc4 Ke6 26. a5 f5 27. Bc1 h5 28. Be3 a6 29. Kc5 g5 30. Bd2 g4 31. h3 gxf3 32. gxf3 Bc7 $1 33. c4 f4 {Black wants to play ...e4!} 34. Be1 $1 Bd8 35. Bc3 $2 {[%mdl 8192] [#]} (35. Bf2 $11) 35... Bf6 $4 {[%mdl 8192]} (35... e4 $1 $19 {[%mdl 512]} 36. Be1 (36. fxe4 $2 f3 $19) 36... exf3) 36. Kb6 $18 e4 37. Be1 ({Wrong is} 37. Bxf6 $2 Kxf6 38. fxe4 f3 $19) 37... exf3 38. Bf2 Bc3 39. Kxb7 Bxb4 40. Kxa6 Bd2 {[#]} 41. c5 $1 Kd5 42. Kb5 Be3 43. a6 Ke6 {Weighted Error Value: White=0.16/Black=0.38} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.14"]
[Round "6.3"]
[White "Brizuela Abreu, Ronald Jesus"]
[Black "Mateus, Alejandro"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2361"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,-4,0,-22,-19,-25,-22,-20,-21,-25,-17,-18,0,-18,-25,-7,-9,-34,-5,-26,-27,-27,-24,-11,-13,-26,-20,-22,-34,-36,20,16,12,17,22,0,16,0,0,-22,-18,-27,-12,-41,-32,-65,-35,-51,-25,-40,112,118,118]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 Re8 6. g3 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} d5 7. a3 Bf8 8. cxd5 {The position is equal.} exd5 9. Bg2 a5 10. O-O Na6 11. Nf4 {[%cal Rf4d5]} c6 $1 12. f3 Nc7 {[#]} 13. Nd3 $146 ({Predecessor:} 13. g4 h6 14. Nd3 Ne6 15. f4 c5 16. Ne5 Qb6 17. Nxd5 Nxd5 18. Bxd5 cxd4 19. e4 {1-0 (44) Bernadskiy,V (2511)-Zhai,M (2329) Golden Sands 2015}) 13... g6 14. Kh1 Bg7 15. Re1 Bf5 16. Nf2 h5 17. Bd2 b6 18. Na4 Nb5 19. Rc1 Qc7 ({Better is} 19... Rc8 $15) 20. Qb3 $11 Qb7 21. Bf1 Bd7 22. Nd3 Nh7 23. Bg2 Rab8 24. Qd1 Nd6 25. b3 Nb5 26. Ra1 Bf5 27. Bf1 ({But not} 27. e4 $2 dxe4 28. fxe4 Bg4 $19) 27... Ng5 {[#] Threatens to win with ...Nxf3!} 28. Nf2 $1 Qd7 29. Ra2 Nh3 $2 (29... Be6 $15 {keeps the upper hand.}) 30. Bxh3 $16 Bxh3 {Weighted Error Value: White=0.07/Black=0.21} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.14"]
[Round "6.4"]
[White "Hernandez Sanchez, Jairo Andres"]
[Black "Escobar Medina, Andres F"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "2394"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,61,-25,-12,-8,-14,-32,0,0,0,-12,0,0,0,0,0,0,21,21,14,17,31,29,63,60,60,31,39,27,27,22,48,22,75,40,50,20,17,0,2,2,7,-10]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nh3 Nf6 8. Nf4 Bh7 9. Bc4 e6 10. O-O Bd6 11. Re1 O-O 12. c3 {B18: Classical Caro-Kann: 4...Bf5 sidelines.} Re8 13. Bd3 Bxd3 14. Nxd3 Nbd7 15. Qf3 Qc7 {[#]} 16. Ne4 $146 ({Predecessor:} 16. Bf4 Bxf4 17. Nxf4 e5 18. Nd3 exd4 19. cxd4 Nd5 20. Nf5 Kh7 21. Rac1 N7f6 22. Ne5 {½-½ (39) Agulnick,M (2127)-Weiss,L (2021) USA 2000}) 16... Nxe4 17. Rxe4 Nf6 18. Re2 Nd7 19. Bf4 Bxf4 20. Nxf4 Nf6 21. Nd3 b6 22. g4 Qe7 23. Ne5 Nd7 24. Nxc6 Qxh4 25. Rae1 Nf6 26. Ne5 (26. Ne7+ {looks sharper.} Kf8 27. Rxe6 Qxg4+ 28. Qxg4 Nxg4 29. R6e2) 26... h5 (26... Rf8 $11) 27. gxh5 Qxh5 28. Qxh5 Nxh5 {The position is equal.} 29. Nd3 Red8 30. Kg2 Nf6 31. Kg1 {Weighted Error Value: White=0.10/Black=0.13} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.14"]
[Round "6.5"]
[White "Argote Heredia, Valentina"]
[Black "Pazos Gambarrotti, Plinio"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2150"]
[BlackElo "2109"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,93,23,40,33,10,34,39,42,37,53,26,18,20,18,0,117,60,103,47,48,41,50,22,54,-6,83,77,132,92,170,176,235,192,218,198,209,203,199,209,310,177,178,127,515,481,482,411,429,420,414,410,519,510,453,269,266,268,477,466,469,455,563,566,1749,1375,29988,29989,29984,2592,1234,762,29992,29985,29985,29986,29986,29987,29984,1002,29994,29995]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 Re8+ {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 9. Ne2 h5 {9...h5 is better than 9...h6.} (9... f5 $5) 10. O-O Qc7 {White is slightly better.} 11. h3 Nd7 12. Be3 Nf8 13. Rae1 g6 14. c4 {[#]} h4 $146 (14... f5 $11 {keeps the balance.}) ({Predecessor:} 14... b6 15. c5 bxc5 16. dxc5 Be5 17. f4 Bxb2 18. Bf2 Rd8 19. Bc4 Rb8 20. Bb3 Ba3 {0-1 (35) Salim,M (1926)-Ammar,S (2274) Chess.com INT 2020}) 15. Nc3 (15. c5 $16 Bh2+ 16. Kh1) 15... Be6 16. Ne4 (16. d5 $16 {And now Ne4 would win.} Bd7 17. Ne4) 16... Be7 $1 $14 17. Qd2 $36 {[%mdl 2048] White fights for an advantage.} f5 18. Nc3 Rad8 19. Rd1 (19. Rc1 $14) 19... Bc8 (19... Bf6 $11) 20. d5 $16 Nd7 (20... Bd6 $142) 21. Be2 {aiming for d6.} ({Weaker is} 21. Bxa7 b6 $17) 21... Nc5 (21... Bf6 $16) 22. Bf3 $1 $18 a5 (22... Bd6 $142 23. b4 Ne6) 23. Bd4 f4 24. Bxc5 Bxc5 25. Ne4 Rxe4 26. Bxe4 Qe5 (26... Bf8 $142 27. a3 cxd5 28. Bxd5 Kh7) 27. Bf3 (27. Qxa5 $142 b6 28. Qe1) 27... b6 28. Qe2 (28. Qe1 $18 Qxe1 29. Rfxe1 cxd5 30. Rxd5) 28... Qg5 $2 {[%mdl 8192] This move loses the game for Black.} (28... Qxe2 $16 {is a better chance.} 29. Bxe2 cxd5) 29. dxc6 Rf8 30. Rd5 Qf6 31. Qe5 Qxc6 {[#]} 32. Rd8 $3 {[%mdl 512]} Qa4 (32... Rxd8 33. Bxc6) 33. Rxf8+ Bxf8 34. Qxf4 (34. Rd1 $142 Be6 35. Rd8) 34... Be6 35. Rd1 Be7 $2 (35... Qxc4 36. Qxc4 Bxc4) 36. Qb8+ Kg7 37. Qxb6 Qxa2 38. Bd5 Bf5 39. Qb7 Bb4 40. Qxf7+ Kh6 {[#]} 41. c5 $1 Qxb2 (41... Bxc5 42. Bxa2) 42. Qf8+ Kg5 43. Qe7+ Kh6 44. Qxh4+ Kg7 45. Qe7+ Kh6 46. Qf8+ (46. g4 $142 Bxc5 47. Qxc5 Qe5 48. gxf5 gxf5 49. Qb6+ Kg7 50. Kh1 Kh7 51. Qd8) 46... Kg5 {[#]} 47. h4+ $1 {Weighted Error Value: White=0.28/Black=0.83} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "7.1"]
[White "Pazos Gambarrotti, Plinio"]
[Black "Heredia Serrano, Carla"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "2109"]
[BlackElo "2114"]
[Annotator "ChessBase"]
[PlyCount "84"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:05:36]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:15]} c6 {[%emt 0:00:15]} 3. e3 {[%emt 0:01:47]} Nf6 {[%emt 0:00:47]} 4. Nc3 {[%emt 1:24:22]} a6 {[%emt 0:13:44]} 5. d4 {[%emt 0:00:30]} b5 {[%emt 0:00:46]} 6. cxd5 {[%emt 0:00:00]} cxd5 {[%emt 0:00:06]} 7. Bd3 {[%emt 0:00:00]} Bb7 {[%emt 0:01:02]} 8. O-O {[%emt 0:00:00]} Nbd7 {[%emt 0:04:13]} 9. Ne5 e6 {[%emt 0:00:00]} 10. Bd2 {[%emt 0:02:30]} Be7 {[%emt 1:14:07]} 11. f4 {[%emt 0:00:00]} O-O {[%emt 0:00:00]} 12. Rf3 {[%emt 0:00:00]} Ne4 {[%emt 0:00:00]} 13. a3 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 14. Rh3 {[%emt 0:00:00]} Rc8 {[%emt 0:00:00]} 15. Qe2 {[%emt 0:00:00]} Ndf6 {[%emt 0:00:00]} 16. Kh1 {[%emt 0:00:00]} Bd6 {[%emt 0:00:00]} 17. Be1 {[%emt 0:00:00]} Qe8 {[%emt 0:00:00]} 18. Na2 {[%emt 0:00:00]} Nd7 {[%emt 0:00:00]} 19. Bb4 {[%emt 0:00:00]} Bxb4 {[%emt 0:00:00]} 20. Nxb4 {[%emt 0:00:00]} Nb6 {[%emt 0:00:00]} 21. Rg1 {[%emt 0:00:00]} a5 {[%emt 0:00:00]} 22. Nc2 {[%emt 0:00:00]} Nc4 {[%emt 0:00:00]} 23. Ne1 {[%emt 0:00:00]} Nxe5 {[%emt 0:01:28]} 24. dxe5 {[%emt 0:00:00]} d4 {[%emt 0:03:35]} 25. exd4 {[%emt 0:00:00]} Rc1 {[%emt 0:00:51]} 26. Rf3 {[%emt 0:00:00]} b4 {[%emt 0:00:32]} 27. axb4 {[%emt 0:00:00]} axb4 {[%emt 0:00:00]} 28. Nc2 {[%emt 0:00:00]} Rxg1+ {[%emt 0:00:08]} 29. Kxg1 {[%emt 0:00:00]} Qa4 {[%emt 0:01:25]} 30. Bc4 {[%emt 0:00:00]} Bd5 {[%emt 0:00:38]} 31. Ne3 {[%emt 0:00:00]} Bxc4 {[%emt 0:00:12]} 32. Qxc4 {[%emt 0:00:00]} Re8 {[%emt 0:01:24]} 33. Nf1 {[%emt 0:00:00]} h6 {[%emt 0:00:33]} 34. Rb3 {[%emt 0:00:00]} Qa1 {[%emt 0:00:25]} 35. Rxb4 {[%emt 0:00:00]} Qe1 {[%emt 0:00:28]} 36. d5 {[%emt 0:00:00]} Nd2 {[%emt 0:00:40]} 37. Qb5 {[%emt 0:00:00]} Nxf1 {[%emt 0:00:29]} 38. Qxe8+ {[%emt 0:00:00]} Kh7 {[%emt 0:00:01]} 39. h3 {[%emt 0:00:00]} Nd2+ {[%emt 0:00:42]} 40. Kh2 {[%emt 0:00:00]} Nf1+ {[%emt 0:00:00]} 41. Kg1 {[%emt 0:00:00]} Ne3+ {[%emt 0:00:35]} 42. Kh2 {[%emt 0:00:00]} Qf2 {[%emt 0:04:39]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "7.2"]
[White "Escobar Medina, Andres F"]
[Black "Argote Heredia, Valentina"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2249"]
[BlackElo "2150"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,85,7,-27,0,-14,2,-14,0,0,11,0,0,0,14,0,14,0,0,-9,0,-2,0,-26,-22,-18,-8,-22,0,-2,0,-58,-37,-26,-19,-33,-29,-39,-30,-22,-33,-36,0,0,0,0,0,-13,0,-9,0,-14,0,0,0,0,0,0,0,0,29,-16,0,-98,0,0,0,0,373,361,963,823,29984,29984,29994,29995,29995,29996]} 1. g3 Nf6 2. Bg2 c5 3. Nf3 Nc6 4. O-O g6 5. d3 Bg7 6. Nc3 O-O {A05: Réti Opening: 1 Nf3 Nf6.} 7. Bg5 d6 8. Qd2 Re8 {The position is equal.} 9. e4 Bd7 10. h3 Rb8 11. a4 a6 12. Bh6 {[#]} b5 $146 ({Predecessor:} 12... Bh8 13. Ne2 Nh5 14. c3 Na5 15. Qe3 c4 16. Nf4 Nxf4 17. Bxf4 cxd3 18. e5 Nb3 {1-0 (39) Ilkovic,F (1875)-Hindicky,F (1892) Slovakia 2018}) 13. Bxg7 Kxg7 14. axb5 axb5 15. Nh4 b4 16. Ne2 Qb6 17. f4 c4+ 18. Kh2 cxd3 19. cxd3 Na5 20. Qd1 (20. Rae1 $11) 20... Bb5 21. f5 Nc6 22. Qd2 Ne5 23. fxg6 hxg6 24. d4 Ned7 25. Rf2 Bxe2 26. Rxe2 {Strongly threatening e5.} e5 27. d5 Rh8 28. Rf1 b3 29. Ref2 Qb4 30. Qe3 {Threatens to win with Rxf6!} Qc5 31. Qd2 Qb4 {...Qxd2 is the strong threat.} 32. Qg5 {[%cal Rf2f6]} Rh5 33. Qc1 $36 {[%mdl 2048] White fights for an advantage.} Qc5 34. Qd1 {Black must now prevent Rxf6!} Qe3 35. Rf3 (35. Bf3 $5 {[%cal Rf3h5]} Rxh4 36. gxh4 $16) 35... Qb6 36. Qe2 {[#]} (36. Qc1 $11 {keeps the balance.}) 36... Rhh8 (36... Rc8 $1 $17 {Hoping for ...Rc2.} 37. Qe1 Rh7) 37. Qd2 $11 Rh5 38. Qe1 {And now g4 would win.} Rc8 $2 {[%mdl 8192]} (38... Rf8 $11 {and Black stays safe.}) 39. g4 $18 Rg5 $2 (39... Rh7 40. g5 Ng4+ 41. Kh1 (41. hxg4 Kg8 $18) 41... Kg8) 40. Qd2 Nxg4+ 41. hxg4 {White mates.} Rxg4 42. Rxf7+ {[%mdl 64] [#] Double Attack} Kg8 43. Qh6 {Weighted Error Value: White=0.13/Black=0.56} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "7.3"]
[White "Mateus, Alejandro"]
[Black "Hernandez Sanchez, Jairo Andres"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2353"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,96,20,38,26,39,75,108,54,56,38,48,23,91,79,80,0,2,4,5,7,0,0,0,0,0,-105,-111,-104,-111,-111,-94,-145,-127,-173,-167,-176,-158,-162,-154,-162,-139,-146,-147,-235,-232,-241,-243,-291,-220,-325,-295,-287,-281,-383,-383,-385,-385,-385,-385,-386,-374,-525,-523,-523,-523,-622,-594,-599,-579,-553,-353,-353,-353,-353,-346,-339,-339,-412,-356,-323,-312,-388,-388]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nge7 9. Bd3 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} Be6 10. c4 Nd4 {[#]} 11. O-O $146 (11. Be3 $16) ({Predecessor:} 11. Nxe7 Bxe7 12. cxb5 axb5 13. Nxb5 Nb3 14. Rb1 Rxa2 15. Nc3 Ra5 16. Bb5+ Rxb5 17. Nxb5 {0-1 (25) Lindholm,J (2040)-Sukhorukov,A (2268) Finland 2017}) 11... bxc4 $1 $14 12. Bxc4 Bxd5 13. exd5 Nef5 (13... g6 $11 {remains equal.}) 14. f4 $16 {Bd3 is the strong threat.} h5 15. fxe5 ({White should play} 15. Nc2 $16) 15... dxe5 $11 {Threatening ...Bc5.} 16. Rxf5 Nxf5 17. Qa4+ Ke7 18. Qc6 {Threatening mate with Bg5+.} Nd6 19. Bxa6 {Hoping for Nc4.} Qe8 20. Qb6 ({Don't go for} 20. Bg5+ $2 f6 $19) (20. Bb7 $11 Qxc6 21. Bxc6) 20... Qb8 $17 {Black keeps a firm grip on the game.} 21. Qxb8 Rxb8 22. b3 Ra8 23. Bf1 ({White should try} 23. Be2) 23... Kf6 {And now ...Nf5 would win.} 24. Nc2 {[#]} Nf5 $1 25. Bc4 Bc5+ 26. Kf1 Nd4 27. Ne1 Ba3 28. Bd2 Rhb8 $36 {[%mdl 2048] White is under strong pressure.} 29. Nd3 (29. Rb1 $17 {is a better defense.}) 29... Bd6 $19 30. b4 Nc2 31. Rd1 Nxb4 32. Nf2 (32. Bxb4 $142 Bxb4 33. Nxb4 Rxb4 34. Bb3) 32... Nc2 ({Don't take} 32... Nxa2 33. Be2) 33. Ne4+ Ke7 34. Rc1 Nd4 35. Bg5+ f6 36. Be3 Rc8 37. Bxd4 exd4 38. Re1 (38. Nf2 $142) 38... Bb4 39. Re2 Kd8 40. Bb3 Rc1+ 41. Kf2 d3 42. Re3 d2 43. Rd3 {[#]} Rxa2 $1 {[%mdl 576] Promotion} 44. Bxa2 {Black must now prevent Bb3.} d1=Q 45. Rxd1 Rxd1 46. Ke2 Rc1 47. Bb3 Ke7 48. Ba4 Bd6 {Weighted Error Value: White=0.31/Black=0.14} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.14"]
[Round "7.4"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Brizuela Abreu, Ronald Jesus"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2340"]
[BlackElo "2361"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,33,-1,28,-13,-14,-8,-14,-10,-27,-37,-11,-13,-10,-2,18,-37,0,-12,0,-14,0,-10,0,0,0,-9]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Qe2+ Qe7 (5... Ne7 {is more complex.} 6. Nf3 Nbc6 7. c3 O-O 8. O-O Bf5) 6. Qxe7+ {C01: French: Exchange Variation.} (6. Nc3 {seems wilder.} c6 7. Bd2 Be6 8. O-O-O Nf6 9. f4) 6... Nxe7 7. Ne2 Bf5 8. Bxf5 Nxf5 9. c3 c6 10. Bf4 Bxf4 11. Nxf4 f6 12. f3 ({Better is} 12. g4 $11 Nh4 13. Nd2) 12... Kf7 13. Kf2 {The position is equal.} Nd7 14. Nd2 Rhe8 15. Rhe1 {[#]} Nd6 $146 ({Predecessor:} 15... Rxe1 16. Rxe1 Re8 17. Rxe8 Kxe8 18. Nd3 Nd6 19. Nf1 Kf7 20. Ne3 Nf8 21. Nf4 Ne6 22. Nxe6 Kxe6 {½-½ (30) Sredojevic,I (2376)-Galyas,M (2484) Budapest 2017}) 16. Rxe8 Rxe8 17. Re1 {A rather calm draw.  Weighted Error Value: White=0.17/Black=0.16} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "7.5"]
[White "Malka, Samuel"]
[Black "Soto, Miguel Angel"]
[Result "0-1"]
[ECO "D76"]
[WhiteElo "2203"]
[BlackElo "2273"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,110,8,12,15,24,29,43,48,-18,-25,-30,0,-3,-9,-7,55,0,0,-26,0,0,68,0,8,0,8,8,13,11,15,0,0,0,0,-18,0,-167,-164,-173,-191,-181,-184,-180,-181,-185,-164,-553,-535,-568,-299,-298,-276,-372,-341,-409,-275,-1226,-1215,-1154,-1179,-1649,-1091,-1845,-1722,-1679,-1547,-1530,-1056,-903,-968,-1618,-1765,-1787,-1760,-1668,-1339,-1193,-1207,-1827,-1647,-2034,-1948,-4133,-3847,-5065,-2948,-29967,-29968,-29967,-29968,-29968,-29969]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 6. Nf3 Bg7 7. O-O O-O 8. d4 Nc6 9. d5 Na5 10. e4 c6 11. Bf4 cxd5 {D76: Fianchetto Grünfeld: Main Line with 7...Nb6.} 12. Nxd5 Nxd5 13. exd5 Bg4 {[#] White is slightly better.} 14. Re1 $146 (14. Rc1 $14 Rc8 15. b3) ({Predecessor:} 14. Rc1 e5 15. dxe6 Bxe6 16. Qxd8 {½-½ (16) Tkachiev,V (2650)-Vachier Lagrave,M (2703) Nimes 2009}) 14... Bxb2 $11 15. Rb1 Bf6 16. Qa4 Bd7 ({Don't go for} 16... Qxd5 $2 17. Ne5 $18) 17. Qb4 Bf5 (17... Rc8 $11) 18. Rbd1 (18. Rbc1 $1 $14) 18... Qb6 19. Qa4 Rac8 {[#] Strongly threatening ...Rc4.} 20. Rc1 Qa6 (20... Rxc1 $11 21. Rxc1 Bb2) 21. Bh6 (21. Bf1 $14 b5 22. Bxb5) 21... b5 $1 {[%cal Rb5a4]} 22. Qa3 Rxc1 23. Rxc1 Rc8 $1 24. Rxc8+ Bxc8 25. d6 exd6 {Threatens to win with ...Nc4.} 26. Qe3 $1 {[%cal Re3e8]} Be6 27. Ng5 Nc4 28. Qf3 $2 {Black keeps a firm grip on the game.} (28. Qf4 $1 $11 Be5 29. Qh4) 28... Bxg5 $19 29. Bxg5 Qxa2 30. Bh6 {Threatening mate with Qa8+.} Qa1+ 31. Bf1 {Intending Qa8+ and mate.} d5 {Hoping for ...Bh3.} 32. Qf4 {[#] White wants to mate with Qb8+.} Qe5 $1 {[%cal Re5f4]} 33. Qh4 $2 (33. Qxe5 {is more resistant.} Nxe5 34. Bxb5) 33... f6 34. Bf4 g5 35. Bxe5 gxh4 36. Bxf6 hxg3 37. hxg3 Bf5 38. Bxc4 $2 (38. Bc3) 38... dxc4 {[%mdl 4096] Endgame KB-KB} 39. Bc3 Kf7 40. Kf1 Ke6 41. Ke2 Kd5 42. Bb4 Kc6 43. Ke3 Kb6 44. Kd4 a5 45. Be7 Bd3 46. Bd8+ Ka6 47. Kc5 b4 48. Bf6 c3 49. Bd4 Kb7 50. f4 Kc8 51. g4 Kd7 52. f5 Ke8 53. g5 Bxf5 {Black mates.} 54. Kb5 Kf7 55. Kxa5 c2 {Weighted Error Value: White=0.94/Black=0.21} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "8.1"]
[White "Heredia Serrano, Carla"]
[Black "Morales, Jhon Alexander"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2114"]
[BlackElo "2400"]
[Annotator "ChessBase"]
[PlyCount "98"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:09:09]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:09]} d6 {[%emt 0:00:25]} 3. Bb5+ {[%emt 0:00:08]} Nd7 {[%emt 0:00:09]} 4. O-O {[%emt 0:00:20]} a6 {[%emt 0:00:23]} 5. Bd3 {[%emt 0:00:05]} Ngf6 {[%emt 0:00:44]} 6. Re1 {[%emt 0:00:29]} Qc7 {[%emt 0:24:02]} 7. a4 {[%emt 0:00:17]} b6 {[%emt 0:00:28]} 8. c3 {[%emt 0:00:52]} Bb7 {[%emt 0:00:26]} 9. Na3 {[%emt 0:11:26]} e6 {[%emt 0:01:56]} 10. Qe2 {[%emt 0:03:07]} Be7 {[%emt 0:05:30]} 11. Bc2 {[%emt 0:01:04]} Rc8 {[%emt 0:16:35]} 12. d3 {[%emt 0:11:26]} O-O {[%emt 0:04:23]} 13. h3 {[%emt 0:09:36]} Rfe8 {[%emt 0:01:38]} 14. Bf4 {[%emt 0:00:47]} Bf8 {[%emt 0:00:35]} 15. Bh2 {[%emt 0:12:19]} Qb8 {[%emt 0:14:40]} 16. Rac1 {[%emt 0:12:30]} Qa8 {[%emt 0:02:39]} 17. Nb1 {[%emt 0:10:09]} g6 {[%emt 0:07:24]} 18. Nbd2 {[%emt 0:00:30]} e5 {[%emt 0:00:15]} 19. c4 {[%emt 0:00:15]} Nh5 {[%emt 0:01:17]} 20. Nf1 {[%emt 0:03:48]} Bh6 {[%emt 0:01:27]} 21. Ne3 {[%emt 0:00:24]} Nf8 {[%emt 0:00:21]} 22. a5 {[%emt 0:05:38]} b5 {[%emt 0:03:39]} 23. cxb5 {[%emt 0:00:19]} axb5 {[%emt 0:00:05]} 24. Ra1 {[%emt 0:00:48]} Ne6 {[%emt 0:00:59]} 25. Bb3 {[%emt 0:01:11]} Nhf4 {[%emt 0:00:24]} 26. Bxf4 {[%emt 0:01:08]} Nxf4 {[%emt 0:00:07]} 27. Qd1 {[%emt 0:00:25]} Qa6 {[%emt 0:03:30]} 28. Ng4 {[%emt 0:03:20]} Bg7 {[%emt 0:00:20]} 29. Ng5 {[%emt 0:01:17]} c4 {[%emt 0:00:36]} 30. dxc4 {[%emt 0:00:10]} bxc4 {[%emt 0:00:07]} 31. Ba4 {[%emt 0:00:06]} Rf8 {[%emt 0:03:46]} 32. Qc2 {[%emt 0:02:16]} h6 {[%emt 0:01:55]} 33. Nf3 {[%emt 0:00:04]} Rc5 {[%emt 0:00:37]} 34. b4 {[%emt 0:00:51]} cxb3 {[%emt 0:00:10]} 35. Qxb3 {[%emt 0:00:10]} Rxa5 {[%emt 0:01:16]} 36. Nd2 {[%emt 0:00:30]} Nd3 {[%emt 0:00:25]} 37. Reb1 {[%emt 0:00:41]} Nc5 {[%emt 0:00:20]} 38. Qb6 {[%emt 0:00:38]} Rxa4 {[%emt 0:00:16]} 39. Rxa4 {[%emt 0:00:31]} Qxa4 {[%emt 0:00:08]} 40. Qxd6 {[%emt 0:00:00]} Nxe4 {[%emt 0:00:00]} 41. Qd3 {[%emt 0:03:49]} Nxd2 {[%emt 0:01:38]} 42. Rxb7 {[%emt 0:00:08]} Qa1+ {[%emt 0:00:11]} 43. Kh2 {[%emt 0:00:15]} Nf1+ {[%emt 0:00:22]} 44. Kg1 {[%emt 0:00:24]} Nd2+ {[%emt 0:00:50]} 45. Kh2 {[%emt 0:00:05]} Qd4 {[%emt 0:00:24]} 46. Qe2 {[%emt 0:04:53]} Rc8 {[%emt 0:04:03]} 47. Re7 {[%emt 0:04:23]} Rc1 {[%emt 0:02:26]} 48. Re8+ {[%emt 0:01:41]} Kh7 {[%emt 0:00:14]} 49. Nxe5 {[%emt 0:02:51]} Nf1+ {[%emt 0:00:34]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "8.2"]
[White "Brizuela Abreu, Ronald Jesus"]
[Black "Malka, Samuel"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2361"]
[BlackElo "2203"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,17,6,0,32,24,53,-8,-10,-13,12,0,39,23,27,27,69,34,109,101,105,59,131,130,120,122,126,96,131,120,129,129,171,164,151,136,284,262,233,195,302,306,304,288,464,468,973,939,949,933,820,1751,944,3304,3059,3073,1709,1452,2400,2208,2862,12829,12837,12837,12838,12839,12841,12841,12841,12842,12843,12843,12844,12843,12844,12843]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c5 7. dxc5 dxc5 8. Bxc5 {E81: King's Indian: Sämisch: 6th move deviations (including 6 Be3 c6).} Nc6 9. Be3 Qa5 {[#]} 10. Kf2 $146 (10. Qa4 $14) ({Predecessor:} 10. Qa4 Qxa4 11. Nxa4 Rd8 12. Rc1 Nd7 13. Nh3 Nb6 14. Nc3 Bxh3 15. gxh3 Ne5 16. Nd5 {1-0 (57) Bukavshin,I (2622)-Kraus,O (2190) Jerusalem 2015}) 10... Rd8 $11 11. Qa4 Qxa4 (11... Nxe4+ $5 12. fxe4 Bxc3 13. Qxa5 Bxa5 $11) 12. Nxa4 b6 13. Rc1 Nd7 14. Ne2 Bb7 15. Nec3 Nd4 (15... Nde5 $1 $14) 16. Be2 $16 Nc5 17. Rhd1 f5 (17... Nxa4 $14 18. Nxa4 e6) 18. Nxc5 bxc5 19. exf5 gxf5 20. f4 e6 21. Bf3 Bxf3 22. gxf3 Rab8 23. Na4 Rbc8 24. Rd2 Rd6 {Loses the game.} (24... e5 $16) 25. Rcd1 $18 Ra6 26. b3 {[%cal Bb2b3,Bb3a4][%mdl 32] And now Rg1 would win.} Rxa4 (26... Kf7 $142 27. h4 (27. Bxd4 Bxd4+ 28. Kf1 Rg8 $14) 27... h5) 27. bxa4 Rb8 28. Rc1 ({Resist} 28. Bxd4 Bxd4+ 29. Kg3 Rb4 $18) 28... a5 $2 {[#]} (28... Kf7 29. a5 Ke7) 29. Bxd4 {White is clearly winning.} Bxd4+ (29... cxd4 $142 30. c5 Kf7) 30. Rxd4 cxd4 {[%mdl 4096] Endgame KR-KR} 31. c5 Kf7 32. c6 Ke7 33. c7 Rc8 34. Ke2 Kd6 35. Kd3 Kd5 36. Rc2 h5 37. h4 e5 38. fxe5 {[%mdl 64] [#] Overworked Piece} Kxe5 39. Rc5+ Kf4 40. Kxd4 Kg3 41. Ke5 f4 42. Kd6 Kxf3 43. Rxh5 Kg4 44. Rh7 {Weighted Error Value: White=0.15/Black=0.45} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "8.3"]
[White "Hernandez Sanchez, Jairo Andres"]
[Black "Palencia Morales, Wilson Guillermo"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2394"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,96,20,14,10,11,16,0,11,0,5,-6,-5,-15,-15,-20,0,-2,24,-16,0,-3,0,-10,15,-21,-4,0,36,24,28,34,78,66,80,-16,10,-27,0,0,0,0,0,0,15,14,19,9,37,37,32,37,33,39,14,16,13,0,0,0,0,-23,-37,-40,0,-16,0,-92,-15,-29,0,0,0,-41,0,0,0,-181,-189,-312,-312,-282,-267,-281,-193,-277,-283,-283,-259]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. O-O d6 6. a4 h6 {C50: Hungarian Defence and Giuoco Pianissimo.} 7. c3 {Strongly threatening b4.} a5 8. Na3 O-O {The position is equal.} 9. Nc2 Ne7 10. d4 exd4 11. cxd4 Bb6 12. Bd3 Ng6 13. Re1 {[#]} Nh5 $146 ({Predecessor:} 13... c6 14. Bd2 Bc7 15. Bc1 Bb6 16. h3 Re8 17. Ra3 d5 18. e5 Ne4 19. Nd2 Ng5 {½-½ (34) Cvak,R (2409)-Henry,D (2036) ICCF email 2018}) 14. Bf1 Re8 15. h3 Bd7 16. g3 Qc8 17. Kh2 Nf6 18. Nd2 h5 19. Bg2 h4 20. Nc4 hxg3+ 21. fxg3 Ba7 22. Ra3 (22. Bg5 $16) 22... Be6 23. d5 Bd7 (23... Bg4 $5 {[%cal Rg4d1]} 24. Qd2 (24. hxg4 $2 Nxg4+ 25. Qxg4 Qxg4 $19) 24... Bd7 $11) 24. Bg5 Bc5 25. Ra1 Nh7 26. Bd2 Ne5 27. Nxe5 Rxe5 28. Bc3 Rg5 29. Rf1 Qe8 30. Nd4 Nf6 31. Nf3 Rh5 {Hoping for ...Ng4+.} 32. Bxf6 gxf6 33. Qc2 Kg7 34. b3 Qe7 35. h4 Rg8 36. Bh3 Bxh3 37. Kxh3 Kf8 38. Kh2 {[#]} (38. g4 $11 Rh6 39. Qd3) 38... Qd7 (38... Rh6 $1 $17 {aiming for ...Rhg6.} 39. Rae1 Rhg6) 39. Rae1 Bb4 {And now ...Qg4 would win.} 40. Re3 Bc5 41. Ree1 Qg4 42. Qg2 Rh6 {White must now prevent ...Rhg6.} 43. Re2 $2 (43. Qh3 $11) 43... Rhg6 $19 44. Ne1 (44. Nd2 {was worth a try.}) 44... Qxg3+ 45. Qxg3 Rxg3 46. Rf3 Bg1+ 47. Kh1 Bd4 48. Rg2 {[#]} R3g4 $1 {Weighted Error Value: White=0.23/Black=0.12} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "8.4"]
[White "Argote Heredia, Valentina"]
[Black "Mateus, Alejandro"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2150"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,32,19,0,0,0,0,15,27,0,0,0,0,0,20,24,30]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 Be7 10. Bg5 Bxg5 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 11. Nxg5 Ke7 12. Rad1 Be6 {[#] The position is equal.} 13. Rd2 $146 ({Predecessor:} 13. g4 Nh4 14. Nxe6 fxe6 15. f4 h5 16. h3 Rad8 17. Ne4 hxg4 18. hxg4 Rxd1 19. Rxd1 {1-0 (40) Jimenez Ruiz,J-Perez Cadenas,C Malaga 2002}) 13... Rad8 14. Rfd1 Rxd2 15. Rxd2 h6 16. Nxe6 Kxe6 {A rather calm draw.  Weighted Error Value: White=0.08/Black=0.05} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.15"]
[Round "8.5"]
[White "Pazos Gambarrotti, Plinio"]
[Black "Escobar Medina, Andres F"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2109"]
[BlackElo "2249"]
[Annotator "ChessBase"]
[PlyCount "82"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:04:16]} 2. g3 {[%emt 0:00:00]} c5 {[%emt 0:00:28]} 3. Bg2 {[%emt 0:00:00]} Nc6 {[%emt 0:00:06]} 4. O-O {[%emt 0:00:14]} g6 {[%emt 0:04:22]} 5. c4 {[%emt 0:00:59]} Bg7 {[%emt 0:00:14]} 6. Nc3 {[%emt 0:00:24]} O-O {[%emt 0:00:07]} 7. a3 {[%emt 0:01:19]} d5 {[%emt 0:02:15]} 8. cxd5 {[%emt 0:02:11]} Nxd5 {[%emt 0:00:07]} 9. Qc2 {[%emt 0:00:20]} Nxc3 {[%emt 0:17:25]} 10. bxc3 {[%emt 0:02:24]} Bf5 {[%emt 0:03:38]} 11. e4 {[%emt 0:02:44]} Be6 {[%emt 0:00:39]} 12. d3 {[%emt 0:00:32]} Qa5 {[%emt 0:01:24]} 13. Bd2 {[%emt 0:00:55]} Qa6 {[%emt 0:05:07]} 14. Ng5 {[%emt 0:03:09]} Bd7 {[%emt 0:00:08]} 15. Be3 {[%emt 0:00:36]} b6 {[%emt 0:03:24]} 16. f4 {[%emt 0:01:59]} Rac8 {[%emt 0:01:19]} 17. e5 {[%emt 0:04:47]} Nd4 {[%emt 0:04:44]} 18. cxd4 {[%emt 0:00:47]} cxd4 {[%emt 0:00:03]} 19. Qf2 {[%emt 0:00:13]} dxe3 {[%emt 0:00:04]} 20. Qxe3 {[%emt 0:00:06]} Rc3 {[%emt 0:03:56]} 21. Rad1 {[%emt 0:00:11]} Bf5 {[%emt 0:08:09]} 22. Be4 {[%emt 0:01:28]} Bxe4 {[%emt 0:00:07]} 23. Qxe4 {[%emt 0:00:28]} e6 {[%emt 0:03:44]} 24. g4 {[%emt 0:00:48]} Bh6 {[%emt 0:20:13]} 25. Qd4 {[%emt 0:02:01]} Rxa3 {[%emt 0:05:43]} 26. Ne4 {[%emt 0:00:31]} Qa4 {[%emt 0:00:09]} 27. Qf2 {[%emt 0:00:55]} Bg7 {[%emt 0:01:41]} 28. d4 {[%emt 0:03:23]} Ra2 {[%emt 0:03:25]} 29. Qh4 {[%emt 0:00:19]} Qc6 {[%emt 0:00:54]} 30. Rfe1 {[%emt 0:04:31]} Qd5 {[%emt 0:01:56]} 31. Qg3 {[%emt 0:00:37]} Rc8 {[%emt 0:00:04]} 32. Nf2 {[%emt 0:02:46]} Rcc2 {[%emt 0:00:26]} 33. Rf1 {[%emt 0:00:06]} b5 {[%emt 0:00:36]} 34. f5 {[%emt 0:00:09]} b4 {[%emt 0:00:15]} 35. Qe3 {[%emt 0:01:33]} a5 {[%emt 0:01:15]} 36. Rc1 {[%emt 0:00:12]} b3 {[%emt 0:01:28]} 37. Rxc2 {[%emt 0:00:24]} Rxc2 {[%emt 0:00:02]} 38. fxe6 {[%emt 0:00:15]} Qxe6 {[%emt 0:02:18]} 39. Qe4 {[%emt 0:00:14]} Rc4 {[%emt 0:02:04]} 40. Nd3 {[%emt 0:00:00]} Qb6 {[%emt 0:00:00]} 41. Nc5 {[%emt 0:01:47]} Qxc5 {[%emt 0:00:23]} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.16"]
[Round "9.1"]
[White "Escobar Medina, Andres F"]
[Black "Heredia Serrano, Carla"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2249"]
[BlackElo "2114"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,55,5,5,5,9,0,8,12,3,0,21,-40,-40,-45,-37,-35,-14,-8,-12,-11,9,7,24,18,76,71,103,68,422,439,433,427,477,446,546,546,634,655,699,694,656,672,987,984,960,885,1333,1303]} 1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. c4 cxd4 6. Nxd4 {B12: Caro-Kann: Advance Variation.} e6 7. Nc3 Bb4 8. cxd5 {The position is equal.} Qxd5 {[%mdl 64] [#] Double Attack} 9. Nxc6 bxc6 {[#]} 10. Qf3 $146 (10. Qe2 $11) ({Predecessor:} 10. Qe2 Ne7 11. Bd2 Bxc3 12. Bxc3 a5 13. Rd1 Qxa2 14. Qg4 O-O 15. Bc4 Qa4 16. O-O {½-½ (79) Adams,M (2744)-Jobava,B (2668) Reykjavik 2015}) 10... Qxe5+ 11. Be2 Ne7 12. O-O Bxc3 (12... Nd5 {with more complications.} 13. Nxd5 exd5 14. Bf4 Qf6 15. Qe3+ Qe7) 13. bxc3 {[%cal Bb2c3,Bc3c4][%mdl 32]} O-O 14. Rd1 {With the idea Ba3.} Nd5 15. Bd2 Bb7 16. c4 Nf6 (16... Nb6 $11) 17. Rab1 $16 {[%mdl 1024] White has strong compensation.} Qc7 18. Bg5 Qe7 $2 {[%mdl 8192] [#] This costs Black the game.} ({Black should play} 18... Nd7 $14) 19. Rd3 $18 {White is clearly winning.} Rab8 20. Rdb3 Kh8 21. Qg3 c5 22. Bf3 Rfd8 23. h3 ({Inferior is} 23. Rxb7 Rxb7 24. Bxb7 Qxb7 $15) 23... h6 24. Rxb7 Rxb7 25. Rxb7 Qe8 26. Bxf6 gxf6 27. Qc7 Kg7 28. Bh5 {Weighted Error Value: White=0.09/Black=0.62} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.16"]
[Round "9.2"]
[White "Mateus, Alejandro"]
[Black "Pazos Gambarrotti, Plinio"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2353"]
[BlackElo "2109"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,141,23,0,0,2,30,22,32,46,35,42,63,75,83,50,82,66,109,108,108,0,0,0,14,23,91,76,162,160,155,135,157,154,151,146,252,247,227,187,199,186,195,192,186,196,192,179,156,145,154,155,161,151,177,166,170,170,169,175,182,193,179,147,215,213,211,202,204,200,173,179,144,80,140,156,195,183,281,139,143,160,203,101,116,143,110,108,312,300,648,647,633,620,1170,1111,2156,1898,1472,1211,862,688,669,640,609,612,2091,2012,1427,1007,29984,29985,29985,29986,29986,29987,29987,29988,29988,29989,29989,29989,29989,29990]} 1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. d4 d5 5. exd5 exd5 6. Be2 Bd6 7. dxc5 Bxc5 8. O-O Nge7 9. Nbd2 O-O 10. Nb3 Bb6 11. Bf4 Bf5 {B22: Sicilian: 2 c3.} 12. Qd2 Qd7 13. a4 {[%cal Ba2a4,Ba4a5][%mdl 32] [#]} a6 $146 {The position is equal.} ({Predecessor:} 13... Rad8 14. a5 Bc7 15. Bxc7 Qxc7 16. Nfd4 Be4 17. Rfe1 Rfe8 18. a6 b6 19. Bb5 Rf8 {½-½ (36) Akhsharumova,A (2220)-Belavenets,L Tbilisi 1976}) 14. a5 Ba7 15. Be3 Bb8 16. Rfe1 Be4 17. g3 Nf5 18. Bc5 Re8 19. Ng5 $1 Nd6 20. f3 (20. Rad1 $16) 20... Bf5 $11 21. Qxd5 {With the idea Bd3.} h6 22. Ne4 {[%cal Re4d6]} Nxe4 (22... Re5 $11 23. Qd1 Nxe4 24. fxe4 Qxd1 25. Bxd1 Bxe4) 23. fxe4 $16 Rxe4 (23... Ne5 $16 {was worth a try.}) 24. Qxd7 $18 Bxd7 25. Bf3 $36 {[%mdl 2048] White is in control.} Rxe1+ 26. Rxe1 Bc7 {[#]} 27. Bb6 $1 {[%cal Rb6c7]} Rc8 {[#]} (27... Bd6 $16 28. Rd1 Be6) 28. Nc5 $1 {[%cal Rc5d7]} Bf5 29. Nxb7 Ne5 30. Bd5 Be6 31. Bxe6 fxe6 32. Kg2 Nd7 33. Bxc7 Rxc7 {[%mdl 4096] Endgame KRN-KRN} 34. Nd6 Rc5 35. Rxe6 Rxa5 36. Re7 Nf6 37. Kf3 Rd5 38. Nc4 Rf5+ 39. Ke2 Rh5 40. h4 g5 41. Re6 Kf7 (41... Kg7 $16) 42. Rxa6 {Hoping for Nd6+.} gxh4 43. gxh4 Rxh4 44. Ne5+ Kg7 {And now ...Re4+ would win.} 45. Ra7+ Kg8 {Threatening ...Re4+.} 46. Nf3 ({White should play} 46. Kd3) 46... Rh1 (46... Rg4 $142) 47. c4 $16 Rb1 48. Rb7 Ne4 (48... h5 $142 49. b4 Kf8) 49. Ke3 (49. Nd2 $18 {is more deadly.} Ng3+ 50. Kf3) 49... Nd6 50. Rb8+ Kf7 51. Nd2 (51. c5 $18 {has better winning chances.} Ne8 52. Ne5+ Ke7 53. b4) 51... Re1+ 52. Kd3 Nf5 53. c5 Ke7 $2 {This move loses the game for Black.} (53... h5 $16) 54. b4 $18 {[%cal Bb2b4,Bb4b5][%mdl 32]} Kd7 $2 (54... Re3+ 55. Kc4 Rh3) 55. b5 Ne7 56. Nb3 Kc7 57. Rh8 Rh1 58. Rh7 Kd8 59. Nd4 Rd1+ 60. Kc4 Rc1+ 61. Kb3 {Cut Off at move 61} Nd5 62. c6 {Rd7+ is the strong threat.} Nc7 {and the idea ...Nxb5 leaves Black hopeful.} 63. Rxh6 Rb1+ 64. Kc2 Rxb5 65. Nxb5 {White mates.} Nxb5 {KR-KN} 66. Kd3 Kc7 67. Kc4 Nd6+ 68. Kd5 Nb5 69. Kc5 Nc3 70. Rh7+ Kc8 71. Re7 {Weighted Error Value: White=0.18/Black=0.32} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.16"]
[Round "9.3"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Argote Heredia, Valentina"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2340"]
[BlackElo "2150"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,67,16,25,25,18,28,18,9,8,5,6,44,29,16,18,24,8,24,0,41,39,68,66,114,100,127,114,88,96,136,106,213,221,397,382,373,236,539,533,491,320,343,0,566,559,557,551,1070,1273,1227,1164,29988,29989]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 9. a3 Be7 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7.} (9... Qxb2 $2 10. Na4 $18) 10. Bf2 {aiming for Nxe6!} Qc7 11. Qf3 Nbd7 {The position is equal.} 12. O-O-O b5 13. g4 Bb7 14. h4 $1 {[%mdl 4] And now g5 would win. is more profitable than 14.Bg2 at the moment.} Nc5 {[%cal Rc5e4]} 15. Bd3 d5 {[%cal Rd5e4]} 16. e5 Nfe4 17. Be1 {[#]} g6 $146 ({Predecessor:} 17... O-O-O 18. Kb1 Kb8 19. Qe3 h5 20. g5 g6 21. Bxe4 Nxe4 22. Nxe4 dxe4 23. Bb4 Bd5 24. Bxe7 Qxe7 {1-0 (45) Wei,Y (2737)-Lu,S (2619) Changsha 2019}) 18. Be2 Rc8 19. Kb1 Nd7 20. Rf1 Rf8 21. Nxe4 dxe4 22. Qe3 Bd5 23. f5 g5 ({But not} 23... Qxe5 24. Bc3) (23... Nxe5 $16 24. Qxh6 Nf3) 24. hxg5 $18 Bxg5 $2 {[#]} (24... hxg5 25. Bc3 Nxe5) 25. Qh3 $1 Qxe5 26. Bb4 {Strongly threatening fxe6.} Nc5 $2 (26... Be7 {is tougher.} 27. Bxe7 (27. Qxh6 Rh8 $16) 27... Kxe7) 27. fxe6 Bxe6 28. Nf5 Rc6 29. Nd4 $2 ({White should try} 29. Qh5 $18 {Black must now prevent Bc3.} Bd7 30. c3) 29... Rc7 $2 {[%mdl 8192]} (29... Rc8 $1 $11 {and Black is okay.}) 30. Nxe6 Qxe6 31. Qg3 Qc6 32. Rd6 Qb7 33. Qe5+ {[%mdl 64] [#] Double Attack} Ne6 34. Rxe6+ {[%mdl 64] Pin, Discovered Attack.  Weighted Error Value: White=0.23/Black=0.86} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.16"]
[Round "9.4"]
[White "Malka, Samuel"]
[Black "Hernandez Sanchez, Jairo Andres"]
[Result "1/2-1/2"]
[ECO "E70"]
[WhiteElo "2203"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,117,33,48,27,33,39,46,27,29,35,67,54,59,42,39,13,13,18,16,20,31,24,28,42,29,22,42,45,74,58,54,54,52,25,24,44,37,40,37,34,36,0,0,0,0,0,41,0,0,0,0,-9,-15,-28,-21,-20,0,0,0,0,0,0,0,0,0,-27,-27,-27,-27,-28,-13,-9,-11,-12,-12,-18,-10,-24,-27,-27,-39,-52,-26,-26,-16,-16,0,-28,-8,-12,-8,-9,-8,-8,0,-8,-12,-71,0,-8,0,0,0,-8]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 e5 6. d5 O-O 7. Nge2 c6 8. O-O Na6 9. a3 {E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2.} Nc5 10. Bc2 a5 11. f3 {White is slightly better.} cxd5 12. cxd5 Qb6 13. Be3 Bd7 14. b3 Rfc8 15. Rb1 Bh6 16. Bf2 {[#]} Qc7 $146 ({Predecessor:} 16... Qd8 17. b4 axb4 18. axb4 Na6 19. Bd3 Nh5 20. Qb3 Nf4 21. Nxf4 Bxf4 22. Nb5 {½-½ (22) Temirbayev,S (2461)-Peng,X (2574) Singapore 1995}) 17. b4 axb4 18. axb4 Na6 19. Bd3 Nh5 20. g3 f5 21. exf5 gxf5 22. Nb5 (22. f4 $5 {[%cal Rf4e5]}) 22... Bxb5 23. Bxb5 Nf6 24. Rb3 Qf7 25. Bd3 Nxd5 {[#]} 26. Bxf5 $1 {[%mdl 512]} Qxf5 27. Qxd5+ {[%mdl 64] Double Attack} Qf7 28. Rd1 {Threatens to win with Qxf7+.} Qxd5 29. Rxd5 Rc2 30. Nc3 ({Wrong is} 30. Rxd6 $2 Bf8 $19) 30... Bf8 31. Ne4 Nc7 32. Ra5 Ra6 33. Rxa6 bxa6 34. Rd3 Rc6 35. Nf6+ Kf7 36. Nxh7 Be7 {Strongly threatening ...Kg7.} 37. h4 Kg6 38. Ng5 $1 Bxg5 39. hxg5 Kxg5 $11 {[%mdl 4096] Endgame KRB-KRN} 40. f4+ exf4 41. gxf4+ Kf5 42. Kg2 Nb5 43. Kf3 Rc4 44. Rd5+ Ke6 45. Rh5 Rxb4 46. f5+ Kd5 47. Be1 Nd4+ 48. Kg4 Rc4 {...Nc2+ is the strong threat.} (48... Rb1 $5 {[%cal Rb1e1]} 49. Bf2 Nc6 $17) 49. Bf2 Nc6+ 50. Kg5 Ne5 51. Rh7 Rg4+ 52. Kf6 a5 53. Ra7 Nc6 54. Ra8 a4 55. Be1 Kc5 56. Bf2+ {[#]} (56. Bd2 $11) 56... Kd5 (56... Kb5 $1 $17 {And now ...d5 would win.} 57. Ke6 Re4+ 58. Kxd6 Rf4 {[%mdl 64] Double Attack}) 57. Be1 {The position is equal.} Rc4 58. Bg3 Rg4 59. Be1 {Weighted Error Value: White=0.09/Black=0.08} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.16"]
[Round "9.5"]
[White "Morales, Jhon Alexander"]
[Black "Soto, Miguel Angel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2400"]
[BlackElo "2273"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,84,37,23,25,29,27,25,15,15,38,0,22,-25,0,-19,18,17,30,28,28,-94,-93,-109,22,-76,-78,-101,0,0,0,0,0,0,0,-1,0,0,0,0,0,0,0,-32,-21,-42,-41,-42,-53,-56,-31,-99,-74,-123,-135,-135,-131,-130,-120,-106,-118,-1118,-239,-242,0,-1135,0,-220,0,-1135,-1115]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 g6 5. Bc4 Bg7 6. Nxd4 cxd4 7. Qf3 Nh6 8. d3 O-O 9. Ne2 Ng4 {B23: Closed Sicilian: Lines without g3.} 10. Bb3 (10. Qxg4 d5 $15) 10... d6 11. Qg3 a5 {Black wants to play ...a4.White has an edge.} 12. a4 Nf6 {[#]} 13. c3 $146 ({Predecessor:} 13. O-O Nd7 14. Bg5 Nc5 15. Qh4 Re8 16. Bd5 Be6 17. Bxe6 Nxe6 18. Bh6 Bf6 19. Qg3 {1-0 (60) Svidler,P (2727)-Leko,P (2741) Dortmund 2004}) 13... d5 14. f3 dxc3 15. bxc3 Qb6 16. Rb1 ({Reject} 16. Bxd5 Nxd5 17. exd5 Qc5 $17) 16... Qa6 17. Bc2 $1 (17. exd5 Qxd3 18. Rb2 Nxd5 $17) 17... Bd7 18. Nd4 (18. Be3 $11) 18... Rac8 $17 {And now ...dxe4 would win.} 19. Bd2 Qa7 (19... dxe4 $17 20. dxe4 Nd5 $1 {[%mdl 512]} 21. exd5 Bxd4 {[%mdl 64] Pin} 22. Bxg6 fxg6 23. cxd4 Rf5) 20. Nb5 (20. Ne2 $11) 20... Bxb5 21. Rxb5 {[#]} Nh5 ({Better is} 21... Nd7 $1 $17 22. d4 (22. Rxd5 $2 Bxc3 23. Qf4 Nf6 $19) 22... Bxd4 23. cxd4 (23. Rxd5 Bxc3 24. Qf2 Bxd2+ 25. Rxd2 Nc5 $17) 23... Rxc2) 22. Qf2 $11 Qxf2+ 23. Kxf2 Bxc3 24. Ke2 dxe4 25. fxe4 Bd4 26. Bb3 b6 27. Rb1 Nf6 28. e5 Ng4 29. Bf4 Rc5 30. Kf3 Nxe5+ 31. Ke4 $1 Nc6 32. Bd5 {Threatens to win with Rxc5.} e5 {[#]} 33. Bh6 (33. Bxe5 $1 $15 {[%mdl 512]} Bxe5 (33... Nxe5 34. Kxd4) 34. Rxc5 bxc5 35. Bxc6 Bxh2 36. Rb5) 33... Rc8 {Hoping for ...Rc2.} 34. Rxc5 Bxc5 35. Rf1 Rc7 36. Rf6 Nb4 37. Bc4 Rd7 38. Rf3 $2 {[%mdl 8192]} (38. g4 $17) 38... Nc6 $2 (38... Rd4+ 39. Ke3 Rxc4+ 40. Ke2 Rc2+ 41. Kf1 Ra2) 39. Bd5 $19 Nb4 $2 (39... Nd4 40. Rf1 Nf5) 40. Bc4 Nc6 $2 (40... Rd4+ 41. Ke3 Rxc4+ {[%mdl 64] Discovered Attack} 42. Ke2 Rc2+ 43. Bd2 Ra2) 41. Bd5 $1 {[%cal Rd5c6]} Nb4 $2 (41... Nd4 42. Rf1 Ne2) 42. Bc4 Rd4+ {Weighted Error Value: White=0.34/Black=0.84} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "10.1"]
[White "Heredia Serrano, Carla"]
[Black "Soto, Miguel Angel"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2114"]
[BlackElo "2273"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,93,14,6,52,54,36,46,46,9,10,20,14,1,1,-5,0,0,0,0,0,0,41,-22,-22,-14,-8,-46,-18,-28,-29,-31,-38,-37,0,0,0,0,0,-20,-18,-23,-25,-79,-76,-85,-89,-88,-81,-83,-8,-9,0,-42,-42,-44,-44,-44,-44,-45,-20,-20,-20,-20,-15,-28,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. d4 e6 {7...cxd4 is a critical line. B52: Sicilian: Moscow Variation with 3...Bd7.} 8. d5 exd5 9. exd5 Ne7 {White is slightly better.} 10. c4 Ng6 11. Nc3 Be7 {[#]} 12. Qa4 $146 ({Predecessor:} 12. Re1 O-O 13. b3 Rfe8 14. Qc2 a6 15. a4 b6 16. h3 Bf8 17. Bg5 Be7 18. Qd3 {½-½ (36) Wolter,J (2400)-Kohlmann,A (2400) Germany 2019}) 12... Qxa4 13. Nxa4 b5 14. cxb5 Nxd5 15. Rd1 Nc7 16. Nc3 h6 17. Nd5 (17. a4 $14) 17... Nxd5 $11 18. Rxd5 a6 19. bxa6 Kd7 20. Be3 Rxa6 21. Rd2 {Black should prevent Bxc5.} Kc7 22. a3 Nh4 23. Nxh4 Bxh4 24. Rc1 Bg5 25. f4 Bf6 26. Kf2 Re8 27. Bd4 (27. Rcc2 $11) 27... Re4 $17 28. Be3 Ra8 29. Kf3 Rae8 30. Bf2 g5 (30... Ra4 $17 {White must now prevent ...Rb8.} 31. Rcd1 Ra6) 31. g3 $11 gxf4 {[%mdl 64] Remove Defender} 32. gxf4 {[#]} (32. b4 $5) 32... Rxf4+ $1 {[%mdl 576] Remove Defender} 33. Kxf4 {aiming for h4.} Bg5+ 34. Kf3 {Strongly threatening Re1.} Bxd2 $15 {[%mdl 4096] Endgame KRB-KRB} 35. Rc2 Bg5 36. b4 Ra8 37. bxc5 Rxa3+ 38. Kg2 Rd3 39. Bg3 {The position is equal.} f5 40. Bxd6+ Kc6 41. Rf2 Rd5 42. Rb2 Rd4 43. Rf2 f4 44. h4 Bxh4 45. Rxf4 Rxf4 46. Bxf4 Kxc5 47. Bxh6 {Weighted Error Value: White=0.10/Black=0.10} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "10.2"]
[White "Brizuela Abreu, Ronald Jesus"]
[Black "Morales, Jhon Alexander"]
[Result "1/2-1/2"]
[ECO "D33"]
[WhiteElo "2361"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,105,39,31,40,36,20,24,22,25,47,53,47,52,64,57,43,53,75,73,89,85,91,86,102,99,105,54,80,59,59,6,36,24,30,0,0,0,11,15,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,16,-10,-12,-607,-573,-919,-33,-35,-32,-32,-30,-25,-32,-175,25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 d5 5. cxd5 exd5 6. d4 Nc6 7. Bg2 cxd4 $1 {[%mdl 4] is currently scoring better than 7...Be7.} 8. Nxd4 Bc5 9. Nb3 Bb6 {D33: Tarrasch Defence: 6 g3 sidelines.} 10. O-O (10. Bxd5 Nb4 $11) 10... d4 11. Na4 O-O {White has an edge.} 12. Bg5 h6 13. Bxf6 Qxf6 14. Nxb6 axb6 15. Bxc6 bxc6 16. Qxd4 Qd8 17. Rfd1 Qc7 18. Qd6 Qb7 {[#]} 19. Nd4 $146 ({Predecessor:} 19. a3 c5 20. f3 Be6 21. Nd2 Rad8 22. Qe5 Rfe8 23. Qc3 Qa6 24. Kf2 Rd4 25. Ne4 {1-0 (62) Morefield,J (2227)-Srihari,L (2414) chess.com INT 2020}) 19... Re8 20. Rd2 c5 {[#]} 21. Nc2 (21. Nb5 $1 $16) 21... Ra4 22. b3 Rae4 23. f3 ({White should try} 23. Ne3 $14) 23... R4e5 (23... Rxe2 $2 24. Rxe2 Be6 25. f4 $18) 24. Qd3 Qa7 25. e4 f5 {[%cal Rf5e4]} 26. Qc4+ Kh8 {[%cal Rf5e4]} 27. Ne3 b5 28. Qe2 ({Wrong is} 28. Qxb5 $2 c4 $19) 28... c4 29. bxc4 bxc4 30. Qf2 c3 (30... fxe4 $5 31. f4 $8 (31. Nxc4 $2 e3 $19) 31... c3 $11) 31. Rc2 fxe4 32. f4 $1 {[%cal Rf4e5]} Rc5 33. Rac1 Bh3 34. Rxc3 Rxc3 35. Rxc3 Qd4 36. Rc1 Rb8 37. Rd1 Qc3 38. f5 Rb2 39. Qf4 $2 {[%mdl 8192]} (39. Qe1 $11 Qxe1+ 40. Rxe1) 39... Re2 $19 40. f6 {Threatening mate with Rd8+.} Qxf6 $2 ({But not} 40... Qxe3+ $2 41. Qxe3 Rxe3 42. f7 $18) (40... Rxe3 $19 41. Rf1 Bxf1 42. Qb8+ Kh7) 41. Qxf6 $15 gxf6 $19 {[%mdl 4096] Endgame KRB-KRN} 42. Nd5 {Black must now prevent Nf4.} Rg2+ 43. Kh1 Rxa2 44. Nxf6 (44. Nf4 $15 Bg4 45. Rc1) 44... Bg2+ $2 ({Better is} 44... e3 $19 45. Re1 Rf2) 45. Kg1 $11 {White wants to mate with Rd7.} Kg7 {The position is equal.} 46. Nh5+ Kf7 {aiming for ...Bf3.} 47. Nf4 Bf3 48. Rd7+ Kf6 {Strongly threatening ...e3.} 49. Rd6+ Kf5 50. Rd5+ Kg4 {( -> ...e3)} 51. Re5 Ra1+ 52. Kf2 {[%csl Gf4][%cal Rh2h3]} Ra2+ 53. Kg1 {Weighted Error Value: White=0.36/Black=0.28} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "10.3"]
[White "Argote Heredia, Valentina"]
[Black "Malka, Samuel"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2150"]
[BlackElo "2203"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,64,19,35,12,29,19,11,22,20,21,28,23,-91,-95,-83,-97,-90,-86,-76,-87,-146,-138,-139,-135,-148,-154,-149,-154,-243,-248,-258,-258,-236,-202,-433,-283,-501,-500,-523,-514,-810,-401,-845,-850]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. g4 Be6 10. Nxe6 fxe6 11. O-O-O Ne5 12. Be2 Qc8 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} 13. h4 Nfd7 14. h5 Nc4 {The position is equal.} 15. Bxc4 Qxc4 16. hxg6 hxg6 17. Qh2 (17. f4 $11) 17... Rxf3 $17 18. Qh7+ Kf7 $1 19. Bh6 Rg8 $36 {[%cal Ba8g8,Bg8g7,Bg7g8][%mdl 2080] Black has strong initiative.} 20. Bxg7 Rxg7 21. Qh8 {[#]} (21. Qh4 $142) 21... Rg8 $1 {[%cal Rg8h8]} 22. Qh7+ {[#]} Kf8 $1 {[#]} 23. Rh3 $146 ({Predecessor:} 23. g5 b5 24. a3 Ne5 25. Nb1 Rf7 26. Qh3 Nf3 27. Nd2 Nxd2 28. Rxd2 Qxe4 29. Rd3 {0-1 (42) Martello,J (2220)-Simmelink,J (2315) Chessfriend.com 2003}) 23... Rf7 24. Qh6+ Ke8 25. Rhd3 (25. b3 $17 {was called for.} Qc5 26. Kb2) 25... Ne5 $19 26. Rd4 Qc5 ({Don't go for} 26... Nxg4 $2 27. Qg5 $18 (27. Rxc4 Nxh6 28. Rh1 Rh7 $11)) 27. Na4 Qa5 28. Kb1 $2 (28. Nc3 {is a better defense.}) 28... Nc6 29. Rc4 $2 (29. Qd2) 29... Qa6 30. b3 b5 $1 {[%csl LRa4,LRc4][%cal Bb7b5,Bb5c4][%mdl 32]} 31. Nc5 (31. Rxc6 $142 Qxc6 32. Nb2) 31... Qa5 (31... Qa3 $142 32. Nxe6 bxc4) 32. Nxe6 (32. Nb7 $142 Qa6 33. Rxc6 Qxc6 34. Na5 Qxe4 35. Qh1 Qxh1 36. Rxh1) 32... bxc4 {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.82/Black=0.36} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "10.4"]
[White "Pazos Gambarrotti, Plinio"]
[Black "Palencia Morales, Wilson Guillermo"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2109"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,81,-1,-1,0,0,1,11,0,6,0,0,-7,-10,-8,0,-16,-24,-12,-16,-56,-39,-37,-35,-44,-24,-34,-30,-54,-51,-74,-60,-79,-89,-70,-62,-63,-41,-110,-109,-112,-116,-114,-103,-97,-102,-104,-85,-146,-146,-198,-197,-191,-191,-227,-216,-280,-270,-310,-315,-597,-590,-590,-590,-3525]} 1. Nf3 Nf6 2. g3 d5 3. c4 e6 4. Bg2 c6 5. b3 Be7 6. O-O O-O 7. Bb2 b5 8. d3 a5 9. a3 Nbd7 10. Nbd2 Ba6 {is the legacy move (10...Bb7).} 11. Qc2 {A14: English Opening: 1...e6 with b3 by White.} Qb6 12. Rab1 {[#]} Rfd8 $146 ({Predecessor:} 12... Qb8 13. Nd4 Rc8 14. e4 Bf8 15. N4f3 dxe4 16. dxe4 e5 17. Ne1 Re8 {½-½ (17) Gisbrecht,E (2441)-Van den Doel,E (2609) Germany 2004}) 13. h3 {The position is equal.} Bd6 14. e4 dxe4 15. dxe4 {[#] Strongly threatening e5.} e5 16. Rfd1 Bc5 17. Nf1 bxc4 18. bxc4 Qc7 $1 19. Re1 Re8 20. Ne3 Nb6 21. Bf1 Nfd7 22. Bc3 Bc8 23. Bb2 f6 24. Nd2 a4 25. Ra1 Nf8 26. Nf3 Be6 27. Bc3 Qe7 28. Rab1 (28. Nf5 $15 Qc7 29. Bb4) 28... Bxe3 $17 29. Rxe3 Nxc4 30. Bxc4 Bxc4 31. Bb4 Qf7 32. Rc1 Bb5 33. Bxf8 (33. Nh4 $142) 33... Rxf8 34. Rc3 (34. Kg2 $17) 34... Rfd8 $19 35. Kg2 Rd6 36. Nd2 Rad8 37. Nc4 Rd4 38. Qe2 h6 39. R1c2 $2 {[#]} (39. Qa2 {was called for.}) 39... Kh8 40. Rc1 Rxc4 41. Ra1 {Weighted Error Value: White=0.27/Black=0.03} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "10.5"]
[White "Escobar Medina, Andres F"]
[Black "Mateus, Alejandro"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2249"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,100,-26,-39,-15,-16,-4,-15,-18,-14,-8,-57,-10,-29,-25,-56,-45,-40,-8,-10,7,0,46,0,15,24,16,0,19,0,0,0,0,0,0,0,0,0,18,-56,0,-29,-31,-52,0,0,0,0,0,0,0,0,0,0,34,35,132,124,122,123,128,97,118,118,126,122,110,0,0,0,0,0,0,-778,-773,-967,-909,-1595,-1173,-29984,-29985,-29985,-29986,-29986,-29987,-29987,-29988,-29998,-29999]} 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nc2 d6 $1 {6...d6 is better than 6...Nf6.} 7. Bg2 Be6 8. Ne3 Nf6 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} 9. O-O Qd7 10. Nc3 Bh3 {[#] The position is equal.} 11. Ncd5 $146 {And now Bxh3 would win.} ({Predecessor:} 11. Bd2 Rc8 12. Rc1 h5 13. f3 Bxg2 14. Nxg2 {½-½ (14) Kindler,K (2091)-Naundorf,M (2146) Untergrombach 2017}) 11... Bxg2 12. Kxg2 h5 13. Nxf6+ Bxf6 14. f3 h4 {Strongly threatening ...hxg3.} 15. g4 Rc8 16. Rb1 Bg7 17. b3 Kf8 18. Bb2 Qe6 19. Bxg7+ Kxg7 20. Nd5 Qe5 21. Qd3 e6 22. f4 Qd4 $1 23. Nb4 h3+ 24. Kg3 Qf6 25. Nxc6 Rxc6 26. e4 (26. g5 $11 Qe7 27. e3) 26... Qh4+ 27. Kf3 Rhc8 28. a4 Kg8 ({Better is} 28... a6 $15) 29. Rbd1 $11 a6 30. a5 $1 Qd8 31. Qd2 b5 32. axb6 $1 Qxb6 33. Qe3 Qb7 34. Kg3 d5 (34... a5 $14) 35. exd5 $16 exd5 36. Rxd5 Re6 37. Qf3 {Rd8+! is the strong threat.} Rce8 {[#] Hoping for ...Re3.} 38. Re5 $1 ({Don't blunder} 38. Kxh3 $2 Re3 $19) 38... Qc7 39. Rxe6 ({But not} 39. Kxh3 $6 Rxe5 40. fxe5 Rxe5 $11) 39... Rxe6 40. Kxh3 {[%mdl 4096] Endgame KQR-KQR} ({White should play} 40. Qa8+ $16 Kg7 41. Qd5 (41. Kxh3 Re3+ 42. Kg2 Qb6 $11)) 40... Qb6 $1 $36 {[%mdl 2048] Black is more active.} 41. Qg3 {aiming for f5.} Re3 42. Rf3 Re2 {Threatens to win with ...Qd4.} 43. Rd3 $2 {[%mdl 8192]} (43. c5 $11 Qxc5 44. f5) 43... Qf6 $19 44. Qg1 Qxf4 45. Rd8+ Kh7 46. Rd3 f5 {Black mates.} 47. Rd7+ Kg8 48. Rd8+ Kf7 49. Rd7+ Ke8 50. Rd3 {[#]} Rxh2+ $1 {[%mdl 512] Weighted Error Value: White=0.54/Black=0.13} 0-1

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "11.1"]
[White "Mateus, Alejandro"]
[Black "Heredia Serrano, Carla"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2353"]
[BlackElo "2114"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,52,-29,-15,-65,-70,-69,-60,-59,-64,-58,-57,-122,-127,-162,-139,-161,-162,-161,-158,-193,-196,-183,-191,-185,-113,-184,-173,-166,-96,-97,-106,-102,-79,-91,-96,-137,-189,-180,0,-14,29995,29996,29996,29997,29997]} 1. e4 c6 2. Ne2 d5 3. e5 Bf5 4. Nd4 Bg6 5. h4 Qb6 {[#]} 6. h5 $146 {Hoping for Qg4. B10: Caro-Kann: 2 d3 and 2 c4.} ({Predecessor:} 6. c3 e6 7. h5 Bxb1 8. Rxb1 Bc5 9. Qg4 Kf8 10. Nxe6+ fxe6 11. d4 Nd7 12. Rh3 {1-0 (31) Teske,H (2517)-Sturm,T (2035) Hamburg 2013}) 6... Qxd4 7. hxg6 Qxe5+ 8. Be2 $1 {Black is slightly better.} fxg6 9. d4 Qf6 10. c3 (10. c4 $15) 10... Nd7 $17 11. Nd2 e5 12. Nf3 e4 13. Ng5 Nh6 14. Qb3 O-O-O $1 15. Be3 Bd6 16. g4 Rdf8 {[#]} (16... Rde8 $19 17. O-O-O Bf4) 17. Nh3 (17. Nxe4 $1 $17 {[%mdl 512]} dxe4 18. g5) 17... Qe6 $19 18. c4 {[#]} Kb8 ({Resist} 18... Nxg4 19. cxd5 cxd5 20. Ng5 $17) ({Black should try} 18... dxc4 $1 $19 19. Bxc4 Qxg4) 19. Ng5 $17 {[%cal Bh3g5,Bg5e6,Be6c7][%mdl 32]} Qe7 20. cxd5 cxd5 21. Qxd5 Bf4 22. Ne6 Bxe3 23. fxe3 {[#]} Qb4+ $2 (23... Rc8 $1 $19 {White must now prevent ...Rc6.} 24. Qb3 (24. Qxe4 Nf6 $17) 24... Rc6) 24. Kd1 $11 Qxb2 $2 {[%mdl 8192]} (24... Rf7 $11) 25. Qd6+ {[%mdl 64] Double Attack} Ka8 26. Nc7+ Kb8 {Weighted Error Value: White=0.21/Black=0.51} 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "11.2"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Escobar Medina, Andres F"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2340"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,0,1,-2,8,0,15,-35,-17,-28,-25,-63,-71,-73,-45,-62,-70,-50,-45,-58,-24,-39,-37,-29,-27,-25,-47,-34,-38,-56,-56,-57,-57,-56,-56,-56,-56,-56,-56,-57,-57,-57,-57,-57,-57,-57,-57,-62,-56,-56,-56,-56,-52,-52,-52,-52,-39,-30,-18,-9,-12,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-275,0,-248,0,-1033,133,-29978,0,-847,-304]} 1. e4 c5 2. Nf3 d6 3. c4 Bg4 4. d4 cxd4 5. Qxd4 Nc6 6. Qd1 {B50: Sicilian: 2...d6, Miscellaneous.} Nf6 7. Nc3 g6 8. h3 {The position is equal.} Bxf3 9. Qxf3 Bg7 {[#]} 10. Bd3 $146 ({Predecessor:} 10. Be2 O-O 11. O-O Nd4 12. Qd3 Nd7 13. Bd1 Ne5 14. Qg3 Nxc4 15. b3 Ne5 16. f4 {1-0 (36) Perez,M (2417)-Antonova,N (1877) Chess.com INT 2020}) 10... Rc8 11. Rb1 O-O 12. O-O Nd7 13. Nb5 {[%cal Bc3b5,Bb5a3,Ba3c2][%mdl 32]} a6 14. Na3 $1 Nde5 15. Qd1 Nb4 16. Be2 Nxa2 17. Bd2 Nc6 18. Qa4 a5 19. Nc2 {[#]} Nab4 $1 {[%mdl 512]} 20. Bxb4 (20. Nxb4 axb4) 20... axb4 21. Nxb4 Ra8 22. Nxc6 Rxa4 23. Nxd8 Rxd8 24. Rfd1 Rda8 25. Rd5 Ra1 26. Rxa1 Rxa1+ $15 {[%mdl 4096] Endgame KRB-KRB} 27. Rd1 Ra2 28. Rd2 b6 29. g3 Kf8 30. Kg2 Ke8 ({Inferior is} 30... Bxb2 31. e5 $1 $16 {[%mdl 512]}) 31. Bd1 Kd7 ({Avoid the trap} 31... Bxb2 $2 32. Bb3 $18) 32. Bb3 Ra1 33. f4 Kc6 34. c5 bxc5 {...e6 is the strong threat.} 35. Bxf7 Kb5 36. b3 Kb4 37. Rc2 Bc3 38. Bg8 Ra8 39. Bd5 Ra3 40. Kf3 Bd4 41. h4 Rxb3+ (41... Ra1 {looks sharper.} 42. Bg8 h6 43. Rc4+ Kb5 44. Bf7 Re1) 42. Bxb3 Kxb3 $11 {KR-KB} 43. Rg2 c4 {And now ...c3 would win.} 44. Ke2 $1 Kc2 45. Ke1+ $2 {[%mdl 8192]} (45. g4 $11 {and White is okay.}) 45... Kc1 $2 (45... Kd3 $19 {Threatens to win with ...c3.} 46. f5 Kxe4 47. fxg6 hxg6) 46. Ra2 $2 (46. g4 $11 {and White stays safe.}) 46... c3 $2 (46... Bb2 $1 $19 {White must now prevent ...c3.} 47. Ra7 c3 48. Rxe7 c2) 47. Ke2 $2 {[%mdl 8192]} (47. Ra4 $11 Bb6 48. Rc4) 47... Kb1 $2 ({Black should try} 47... c2 $1 $19 48. Kd3 Bb2) 48. Ke1 $2 {[%mdl 8192]} (48. Ra4 $16 Bf6 49. Rc4) 48... Kc1 $2 (48... Kxa2 {mates} 49. Ke2 Bc5 50. Kf3 c2 51. Kg4 c1=Q 52. Kg5 {[#]} Qe3 $1 {[%mdl 512]} 53. e5 Qxg3+ 54. Kh6 Qxf4+ 55. Kg7 Bd4 $1 {[%mdl 512]} 56. h5 Bxe5+ 57. Kg8 gxh5 58. Kxh7 Qf7+ 59. Kh6 Bf4#) 49. Rh2 $2 {[%mdl 8192]} (49. Ke2 $11) 49... h5 $2 {[%mdl 32768] Weighted Error Value: White=0.69/Black=0.65. An unexpected result.} (49... c2 50. Rh1 Kb2) 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "11.3"]
[White "Malka, Samuel"]
[Black "Pazos Gambarrotti, Plinio"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2203"]
[BlackElo "2109"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,109,12,22,24,43,57,108,108,105,108,104,94,131,154,133,115,179,131,122,121,99,12,102,58,77,81,64,76,78,20,32,33,54,61,84,77,77,21,71,66,75,77,76,50,59,27,40,14,18,0,0,-4,-5,-6,-6,-6,0,0,0,0,0,0,0,-3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,0,12,0,12,0,12,0,12,0,0,0,13,0,13,13,13,0]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 $1 {8.a4 scores better than 8.Qxc4.} Nbd7 9. Rd1 {E05: Open Catalan: 5 Nf3 Be7.} c5 10. Nbd2 Qc7 ({Better is} 10... b6 $14) 11. Nxc4 $16 {White is better.} cxd4 12. Bf4 Qc5 13. Nxd4 {[#]} Nd5 $146 ({Predecessor:} 13... Nb6 14. Nxb6 Qxb6 15. a5 Qc5 16. Qxc5 Bxc5 17. Nb3 Ba7 18. Bd6 Re8 19. Bc5 Nd7 20. Bxa7 Rxa7 {1-0 (40) Loos,R (2367)-Heika,M (2254) Bayern 2016}) 14. Nb3 Qa7 15. Bd2 N7f6 (15... N7b6 $16) 16. e4 Nb4 17. Qc3 Ng4 {[#]} 18. Rf1 (18. Be1 $1 $16) 18... Nc6 (18... Rd8 $1 $11 {keeps the balance.}) 19. Qc2 Nce5 20. Nxe5 Nxe5 21. Be3 Qb8 22. Qe2 (22. Bb6 $16 {Bc7 is the strong threat.} Bd7 23. f4) 22... Nc6 23. f4 Bd7 24. Rfd1 Be8 25. e5 Nb4 {[#]} 26. Nd4 (26. Nc5 $1 $16) 26... Nc6 27. Rac1 Nxd4 28. Rxd4 ({Much weaker is} 28. Bxd4 Bxa4 29. Re1 Bb4 $15) 28... a5 29. Rdc4 {Strongly threatening Rc7.} Bc6 30. Bxc6 bxc6 31. Rxc6 Qb3 $1 {The position is equal.} 32. R6c4 Bb4 33. Bc5 Bxc5+ 34. Rxc5 Qxa4 35. Qc4 Qxc4 36. R1xc4 $11 {[%mdl 4096] Endgame KRR-KRR} Rfb8 37. Ra4 g6 38. Ra2 Rb3 39. Kg2 a4 40. Rc4 a3 41. bxa3 Rbxa3 42. Rxa3 Rxa3 {KR-KR} 43. g4 Kg7 44. h3 h5 45. Rc7 hxg4 46. hxg4 Kf8 47. Rc5 Rb3 48. Kf2 Ra3 49. Rc4 Rb3 50. Re4 Ra3 51. Re3 Ra4 52. Kg3 Kg7 53. Rb3 Re4 54. Kf3 Re1 55. Rb5 {Weighted Error Value: White=0.14/Black=0.13} 1/2-1/2

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "11.4"]
[White "Morales, Jhon Alexander"]
[Black "Hernandez Sanchez, Jairo Andres"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2400"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,57,24,18,44,43,38,24,43,28,125,128,173,160,103,120,197,156,238,208,533,532,508,510,29981,29982,29982,29983,29982,29983,3083,3036,2537,2508,1912,1090,1878,1087,1089,1066,1042,1010,29984,1497]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nce7 9. Bg5 f6 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} 10. Be3 {Threatens to win with Bb6.} Nxd5 11. Qxd5 Rb8 $1 {White has an edge.} 12. Qb3 {[#]} f5 $146 (12... Bb7 $11 {remains equal.}) ({Predecessor:} 12... Qc7 13. Nb1 Bd7 14. Nc3 Ne7 15. O-O-O Bc6 16. a3 Nc8 17. Nd5 Bxd5 18. Rxd5 Nb6 {1-0 (36) Timofeev,A (2555)-Potapov,P (2476) Khanty-Mansiysk 2015}) 13. Bc4 $1 $16 {[%cal Rc4g8]} Nf6 14. Bf7+ Ke7 {next ...f4 is good for Black.} 15. O-O-O $1 {Black must now prevent f4.} f4 (15... g6 $16) 16. Bxf4 $1 $18 exf4 {[#]} (16... Qc7 $16) 17. e5 $1 $40 {[%mdl 640] White attacks with force.} Ne4 $2 (17... d5) (17... dxe5 18. Rxd8) 18. Rhe1 $1 {[%cal Re1e4]} Nc5 19. Qd5 $1 {[%cal Re5d6]} ({Worse is} 19. exd6+ Kf6 $14) 19... Bb7 (19... g6 $18 20. exd6+ Kf6) 20. exd6+ Kf6 {[#]} 21. Re6+ $1 {[%mdl 512]} Kxf7 (21... Nxe6 22. Qxe6+) 22. Re7+ $1 Kg6 23. Qf7+ {[%mdl 64] Double Attack} Kh6 24. Qxf4+ g5 25. Qf6+ {[%mdl 64] Double Attack} Kh5 26. Qxh8 h6 {[#]} 27. Qf6 $1 {[%mdl 512]} Bxe7 28. dxe7 {[%mdl 64] Discovered Attack} Qe8 29. Rd8 {Weighted Error Value: White=0.00/Black=1.10} (29. h3 $142 Qc6 30. Rd6 Nd3+ {[#]} 31. Kb1 $1 {[%mdl 512]} Qxd6 32. Qxd6 Nxf2 33. Qxb8 Bc6 34. Qc8 $1 {[%mdl 576] Double Attack}) 1-0

[Event "Colombia Tierra de Atletas-B 2020"]
[Site "Medellin"]
[Date "2020.12.17"]
[Round "11.5"]
[White "Soto, Miguel Angel"]
[Black "Brizuela Abreu, Ronald Jesus"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "2273"]
[BlackElo "2361"]
[Annotator "TA"]
[PlyCount "163"]
[EventDate "2020.12.10"]
[EventType "tourn"]
[EventCountry "COL"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,163,25,6,93,43,55,34,41,40,51,36,41,26,26,35,23,22,54,58,39,-75,-97,-139,0,0,0,0,0,0,62,71,420,165,179,165,168,87,117,7,11,0,4,15,26,-20,-30,-35,0,-52,-40,-46,-56,-52,-52,-48,-59,-61,0,-81,7,0,0,0,9,8,13,13,19,15,27,21,22,13,25,16,19,13,53,47,20,0,30,28,22,0,83,91,189,185,206,118,118,82,89,0,0,0,0,0,0,0,0,7,158,17,316,288,304,301,339,314,457,286,279,266,284,273,323,334,613,629,641,625,854,772,687,696,1013,998,759,849,869,810,732,477,633,477,1722,1594,29974,29975,29979,29980,29980,29981,29981,29982,29982,29983,29986,29987,29987,29988,29988,29989]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Kxe7 {C14: French: Classical System: 4 Bg5 Be7 main line.} (6... Qxe7 $11 7. f4 O-O) 7. Qg4 {Qg5+ is the strong threat.} Kf8 8. f4 {[#]} a6 $146 {White is slightly better.} ({Predecessor:} 8... f5 9. exf6 Nxf6 10. Qh4 c5 11. Nf3 cxd4 12. Nxd4 Qb6 13. O-O-O Nc6 14. Qf2 Nxd4 15. Rxd4 {1-0 (55) Nadeev,S (2353)-Gurin,A (2184) Tula 2004}) 9. Nf3 c5 10. dxc5 Nc6 11. O-O-O Nxc5 12. f5 exf5 13. Qf4 Be6 14. Bc4 $1 {[%cal Rc4d5]} Ne7 15. b4 (15. g4 $14 {stays ahead.}) 15... Ne4 $17 16. Nxe4 Ng6 (16... fxe4 $17 17. Nd4 Kg8) 17. Qg3 $1 $11 {Black must now prevent Nc5.} fxe4 18. Ng5 $1 {And now Rhf1 would win.} Rc8 19. Rhf1 Kg8 (19... Ke7 $1 $11 20. Bxd5 Bxd5 21. Nxf7 Bxf7 22. Rxd8 Rcxd8) 20. Bb3 $1 $14 Rc6 $2 {[%mdl 8192] [#]} (20... Qc7 $2 21. Nxe6 fxe6 22. Rxd5 $1 $18 {[%mdl 512]}) (20... Ne7 $16) 21. h4 $2 (21. Nxf7 $1 {[%mdl 512]} Bxf7 22. Rxf7 $1 {[%mdl 576] Remove Defender} Kxf7 23. Bxd5+ Qxd5 24. Rxd5) 21... Ne7 $18 {[#]} 22. Nxe4 $1 {[%mdl 576] Pin} Qc7 (22... dxe4 23. Rxd8#) 23. Nc5 (23. Nf6+ $6 Kf8 $14) (23. Nd6 $18 Rc3 24. Qf2) 23... h5 24. Rf2 (24. Nxe6 $16 fxe6 25. Qf3) 24... Rh6 25. Rdf1 Rxc5 26. bxc5 Qxc5 27. Kb2 Rg6 28. Qd3 Rg4 {[%mdl 1024] Black has compensation.} 29. g3 (29. Rf4 $11) 29... Nc6 $15 30. Re2 Na5 31. Rf4 Nc4+ 32. Bxc4 dxc4 33. Qc3 $1 Rg6 (33... Rxf4 $15 34. gxf4 Qb6+ 35. Ka3 Qg1) 34. a3 (34. Re3 $11 {keeps the balance.}) 34... Bd5 (34... Qb6+ $1 $17 35. Qb4 Qg1) 35. Re1 Rb6+ 36. Kc1 Be6 37. Rd4 Rb5 38. Rd8+ Kh7 39. Qf3 {[%cal Rf3h5]} Bg4 40. Qe3 (40. Qxf7 {is a self mate.} Qxa3+ 41. Kd2 Qa5+ 42. Ke3 Qxe1+ 43. Kd4 Qxe5+ 44. Kxc4 Be2+ 45. Rd3 Qc5#) 40... Qe7 41. Rd6 Be6 42. Qd4 Qc7 43. Re3 Rc5 44. Qe4+ Kg8 45. Qd4 Qa5 46. Rd8+ Kh7 47. Rb8 Rc7 (47... Rd5 $11 48. Qe4+ g6 49. Rxb7 c3) 48. Rxb7 $1 $16 ({Don't go for} 48. Qd8 $2 c3 $19) 48... Rc8 (48... Rxb7 $16 49. Qe4+ {[%mdl 64] Double Attack} g6 50. Qxb7 Qc5) 49. Rb6 $1 $18 Rc5 50. Rd6 (50. Rxa6 $18 Qb5 51. Qd6) 50... Rb5 $16 51. Qe4+ g6 52. Qd4 (52. g4 $1 $16 Bxg4 53. Qxc4) 52... Qc7 $1 $11 53. Rxa6 Qb7 54. Rxe6 $1 fxe6 55. Qxc4 {[%mdl 4096] Endgame aiming for Rb3. KQR-KQR} Qh1+ 56. Kd2 Qg2+ $2 {[#] White leaves nothing to chance now.} ({Better is} 56... Rb1 $1 $11) 57. Kc3 ({White has to play} 57. Qe2 $1 $16 {[%cal Re2g2]} Qb7 58. Qf3) 57... Rb7 $2 {[%mdl 8192]} (57... Qb7 $1 $11 {and Black has nothing to worry.}) 58. Qe4 $18 Rc7+ {[#]} 59. Kb2 $1 Qd2 60. Rb3 Qa5 (60... Kg7 {might work better.} 61. a4 Qa5) 61. Qd4 {Cut Off at move 61} Qa6 62. Qd3 Qa4 63. Rb4 Qc6 64. g4 Qc5 $2 (64... Rd7 65. Qc3 Qd5 66. gxh5 gxh5) 65. Rb5 Qc4 66. gxh5 Qxd3 67. cxd3 gxh5 {KR-KR} 68. Rb6 Re7 69. d4 Kg6 70. d5 Kf5 71. Rxe6 Rd7 72. Rh6 Rxd5 73. e6 Kg4 (73... Rd4 $142 74. e7 (74. Rxh5+ Kxe6 75. Kb3 Rd3+ 76. Kb4 Rd4+ 77. Kb5 Kd6 $18) 74... Re4 75. Rxh5+ Kg6) 74. Rg6+ Kxh4 75. e7 {White mates.} Re5 76. Rg7 Kh3 77. a4 {[%cal Ba3a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Kh2 {[#]} 78. a5 $1 {[%mdl 512]} h4 (78... Rxa5 79. e8=Q) 79. a6 Rb5+ 80. Kc3 Rb8 81. Rf7 Re8 82. a7 {Weighted Error Value: White=0.31/Black=0.37} 1-0

