[Event "DDR corr"]
[Site "DDR"]
[Date "1988.??.??"]
[Round "?"]
[White "Albrecht"]
[Black "Merker, R."]
[Result "1/2-1/2"]
[ECO "E21"]
[PlyCount "33"]
[EventDate "1988.08.04"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 Bxc3+ 5. bxc3 b6 6. Bg5 h6 7. Bh4 g5 8. Bg3 Ne4 9. Nd2 Nxg3 10. fxg3 Bb7 11. e4 d6 12. Be2 Qf6 13. Qa4+ Bc6 14. Qc2 Nd7 15. Bh5 Rf8 16. Rf1 Qg7 17. d5 1/2-1/2

[Event "EU-ch corr"]
[Site "ICCF corr"]
[Date "1988.??.??"]
[Round "?"]
[White "Krocian, Jan"]
[Black "Merker, R."]
[Result "0-1"]
[ECO "B03"]
[PlyCount "56"]
[EventDate "1988.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Be2 Be7 10. Nf3 0-0 11. 0-0 f6 12. Qb3 fxe5 13. d5 Nb4 14. d6 Bxd6 15. c5 Nc2 16. Bf2 e4 17. Nxe4 Nxa1 18. Rxa1 Nd5 19. Nc3 Bf4 20. Rd1 c6 21. Nd4 Qf6 22. Nxd5 exd5 23. Qxb7 Rae8 24. Bf3 Qh6 25. Qxc6 Qxh2+ 26. Kf1 Qh1+ 27. Bg1 Be4 28. Bxe4 Bh2+ 0-1

[Event "EU-ch corr"]
[Site "ICCF corr"]
[Date "1988.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Kaiser"]
[Result "1-0"]
[ECO "D58"]
[PlyCount "87"]
[EventDate "1988.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 0-0 6. e3 h6 7. Bh4 b6 8. Be2 Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. 0-0 Qd6 12. Rc1 a6 13. a3 Nd7 14. b4 Rfe8 15. Qb3 c6 16. Rfd1 b5 17. Ne1 Bd8 18. Nd3 Bc7 19. g3 a5 20. Bf3 axb4 21. axb4 Bb6 22. e4 Qf6 23. Bg2 Bxd4 24. exd5 Nb6 25. dxc6 Bxc6 26. Bxc6 Qxc6 27. Ne2 Qe4 28. Nxd4 Qxd4 29. Nf4 Qf6 30. Rc5 Ra1 31. Rxa1 Qxa1+ 32. Kg2 Qa6 33. Qf3 Nc4 34. Nd5 Rb8 35. Ne7+ Kf8 36. Nc6 Rc8 37. Nd4 Rxc5 38. bxc5 b4 39. Qd5 Kg8 40. Nc6 Qb7 41. Kg1 g5 42. Qxc4 Qxc6 43. Qxb4 Qe6 44. Qc3 1-0

[Event "DDR corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Hunger"]
[Black "Merker, R."]
[Result "0-1"]
[ECO "D34"]
[PlyCount "62"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. dxc5 Bxc5 10. Na4 Be7 11. Be3 Re8 12. Rc1 Bg4 13. Bc5 Ne4 14. Bxe7 Qxe7 15. h3 Bxf3 16. exf3 Nf6 17. f4 Rad8 18. Nc5 b6 19. Nb3 Qd7 20. Nd4 Nxd4 21. Qxd4 Rc8 22. g4 Qb5 23. g5 Ne4 24. a4 Qb3 25. Rfd1 Nc5 26. Bxd5 Qxh3 27. Bg2 Qg4 28. Kh2 Rb8 29. Bh3 Qf3 30. Bg2 Qh5+ 31. Kg1 Nb3 0-1

[Event "DDR-ch distr corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Kornblum, Dittmar"]
[Black "Merker, R."]
[Result "0-1"]
[ECO "D34"]
[PlyCount "68"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. dxc5 Bxc5 10. Bg5 d4 11. Na4 Be7 12. Rc1 Be6 13. b3 Bd5 14. Nc5 Qb6 15. Nd3 h6 16. Bxf6 Bxf6 17. Nfe1 Bxg2 18. Nxg2 Rfe8 19. Re1 Rad8 20. Qc2 Rc8 21. Qd2 Bg5 22. f4 Bf6 23. Kh1 Qd8 24. e3 dxe3 25. Rxe3 Qd7 26. Rxe8+ Rxe8 27. Rd1 Rd8 28. Qc1 Qf5 29. Nf2 Rxd1+ 30. Qxd1 Bd4 31. Nd3 Qe4 32. a3 Bb6 33. b4 Nd4 34. Nde1 Qc6 0-1

[Event "DDR-ch distr corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Hopp, Karlheinz"]
[Result "1-0"]
[ECO "D61"]
[PlyCount "53"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 0-0 6. Qc2 c6 7. e3 Nbd7 8. cxd5 cxd5 9. Bd3 h6 10. h4 Ng4 11. Bf4 f5 12. a3 Ngf6 13. Nb5 Qa5+ 14. b4 Qb6 15. Qb2 Ne8 16. Rc1 a6 17. Nc7 Nxc7 18. Bxc7 Qa7 19. Rc3 b5 20. Bf4 Bb7 21. Rc7 Rfd8 22. g4 fxg4 23. Ne5 Nxe5 24. Bxe5 Bf8 25. Qc2 Rac8 26. Bh7+ Kh8 27. Qg6 1-0

[Event "DDR-ch distr corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Jasinski, Miroslaw"]
[Result "1-0"]
[ECO "E25"]
[PlyCount "83"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5 Nxd5 8. dxc5 Qa5 9. e4 Nf6 10. Be3 Bd7 11. Qb3 Na6 12. Bxa6 Qxa6 13. a4 0-0 14. Kf2 e5 15. Ne2 Be6 16. Qb4 Rad8 17. Rhd1 Rd7 18. Rxd7 Bxd7 19. c4 Be6 20. Rc1 Rc8 21. Qb5 Qc6 22. Nc3 Nd7 23. Nd5 Kf8 24. Nb4 Qc7 25. Nd3 f6 26. Qb4 Kf7 27. a5 Nb8 28. Qa3 Na6 29. h3 h5 30. Kg1 g5 31. Qc3 Nb8 32. Nb4 Nd7 33. Nd5 Qc6 34. Rb1 g4 35. hxg4 hxg4 36. Nb4 Qc7 37. c6 Nb8 38. Nd5 Qxc6 39. Qb4 Bxd5 40. cxd5 Qc3 41. Qxc3 Rxc3 42. Bxa7 1-0

[Event "DDR corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Ribitzki, Matthias"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "49"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. Nf3 Nf6 5. Nc3 e6 6. Bg5 Be7 7. e4 0-0 8. Qc2 Nc6 9. Rd1 Bd7 10. a3 a6 11. Bxf6 Bxf6 12. e5 Be7 13. Bd3 g6 14. h4 Be8 15. Be2 Na7 16. d5 Qc8 17. Bc4 Bd7 18. Ng5 b5 19. dxe6 Bxe6 20. Bxe6 fxe6 21. Nce4 Rb8 22. Nxh7 Kxh7 23. h5 Rf5 24. g4 Rxe5 25. f4 1-0

[Event "DDR corr"]
[Site "DDR"]
[Date "1987.??.??"]
[Round "?"]
[White "Schmidt, Karl Heinz"]
[Black "Merker, R."]
[Result "1/2-1/2"]
[ECO "C11"]
[PlyCount "70"]
[EventDate "1987.??.??"]
[EventType "tourn (corr)"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 Qb6 8. Ne2 f6 9. g3 cxd4 10. Nexd4 Nxd4 11. cxd4 Bb4+ 12. Kf2 0-0 13. Be3 fxe5 14. fxe5 Be7 15. b3 Rf7 16. h4 Nb8 17. Be2 Nc6 18. a3 Bd7 19. Qd3 a6 20. Kg2 Raf8 21. a4 Nb4 22. Qd2 Rc8 23. Rac1 Rff8 24. Bg5 Rce8 25. Qe3 Nc6 26. Rh3 Ba3 27. Rc2 Rf7 28. Rh1 Ref8 29. Ra2 Be7 30. Bf4 Bd8 31. Bd1 Qb4 32. Bc2 g6 33. Rd1 Ne7 34. Rd3 Nf5 35. Qd2 Qb6 1/2-1/2

[Event "DDR-ch M corr"]
[Site "DDR"]
[Date "1986.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Mietzelfeldt, Gerhard"]
[Result "1/2-1/2"]
[ECO "D48"]
[PlyCount "110"]
[EventDate "1986.01.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 e5 11. b3 c4 12. bxc4 Bb4 13. Bb2 bxc4 14. Bc2 0-0 15. 0-0 Qa5 16. Qd2 Nc5 17. Rfe1 Ncd7 18. a3 Bd6 19. Na4 Qc7 20. Bc3 a5 21. Kh1 Re8 22. Nh4 Nc5 23. Nxc5 Bxc5 24. Ba4 Bd7 25. Bxd7 Nxd7 26. Nf5 Bf8 27. Qg5 f6 28. Qg3 Nc5 29. Qf3 Reb8 30. Qe2 Nd3 31. Reb1 Rxb1+ 32. Rxb1 Bxa3 33. Qa2 Bc5 34. Rf1 Bb4 35. d6 Bxd6 36. Nxd6 Qxd6 37. Qxc4+ Kf8 38. Kg1 Nf4 39. g3 Ne6 40. Ra1 Qa6 41. Qxa6 Rxa6 42. Ra4 Ke7 43. Kg2 Nc5 44. Rc4 Kd6 45. f4 exf4 46. gxf4 Nb3 47. e5+ Kd5 48. Rc7 Rc6 49. Rxc6 Kxc6 50. exf6 gxf6 51. Bxf6 a4 52. Bb2 Kd5 53. f5 Nd2 54. Kg3 Nc4 55. Ba1 Ke4 1/2-1/2

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Schmidt"]
[Result "1-0"]
[ECO "D36"]
[PlyCount "67"]
[EventDate "1985.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. cxd5 exd5 7. Qc2 c6 8. Bd3 Nbd7 9. Nf3 Re8 10. h3 Nf8 11. 0-0-0 g6 12. g4 Ne6 13. Bh4 Qa5 14. Kb1 Nd7 15. Bxe7 Rxe7 16. Rhe1 b5 17. Nd2 Bb7 18. f4 a6 19. f5 Nef8 20. e4 dxe4 21. Ncxe4 Rae8 22. Rf1 Ba8 23. Nd6 Rd8 24. N2e4 Qc7 25. fxg6 hxg6 26. Nxf7 Rxf7 27. Rxf7 Kxf7 28. Rf1+ Ke7 29. Qf2 Re8 30. Qh4+ Ke6 31. Re1 Ne5 32. Nc5+ Kd5 33. Be4+ Kd6 34. Qf6+ 1-0

[Event "DDR-ch M774 corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Ullrich, Juergen"]
[Result "0-1"]
[ECO "E84"]
[PlyCount "78"]
[EventDate "1985.01.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. Bh6 e5 10. 0-0-0 b5 11. h4 bxc4 12. Bxg7 Kxg7 13. dxe5 Nxe5 14. Nd4 Bd7 15. f4 Nd3+ 16. Bxd3 cxd3 17. Qxd3 Qc8 18. f5 Qb7 19. Rd2 Rfe8 20. fxg6 hxg6 21. h5 Nxh5 22. Nd5 c6 23. Rxh5 gxh5 24. Qg3+ Kh8 25. Nf5 Re5 26. Nf6 Bxf5 27. Qf4 Kg7 28. Nxh5+ Kh7 29. Nf6+ Kg6 30. Nh5 Kxh5 31. g4+ Kg6 32. gxf5+ Kg7 33. f6+ Kf8 34. Qg4 Qb4 35. Qg7+ Ke8 36. Qg8+ Kd7 37. Qxf7+ Kc8 38. Qe8+ Kb7 39. Qd7+ Kb6 0-1

[Event "DDR-ch M774 corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Winter, Karl"]
[Result "1-0"]
[ECO "D34"]
[PlyCount "87"]
[EventDate "1985.01.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. dxc5 Bxc5 10. Bg5 d4 11. Bxf6 Qxf6 12. Nd5 Qd8 13. Nd2 Be6 14. Nf4 Qd7 15. Rc1 Bb6 16. Qa4 Rac8 17. Nc4 Bxc4 18. Rxc4 Rc7 19. Nd5 Rcc8 20. Nxb6 axb6 21. Bxc6 bxc6 22. Rxd4 Qe6 23. Re4 Qd7 24. Rd1 Qb7 25. Red4 b5 26. Qc2 Qa8 27. a3 Rc7 28. Qd3 h6 29. Qf5 Qe8 30. Qf4 Re7 31. e3 c5 32. Rd5 c4 33. Qh4 Re4 34. Qh5 Qe7 35. Rxb5 Qf6 36. Rd7 c3 37. bxc3 Qxc3 38. Rxf7 Qc1+ 39. Kg2 Qc6 40. Rxf8+ Kxf8 41. Qf3+ Kg8 42. Rb8+ Kh7 43. Qf5+ Qg6 44. Rh8+ 1-0

[Event "DDR-ch M774 corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Mueller, Peter"]
[Black "Merker, R."]
[Result "1/2-1/2"]
[ECO "C19"]
[PlyCount "73"]
[EventDate "1985.01.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Bd7 8. a4 Nbc6 9. Ba3 Qc7 10. Bxc5 Na5 11. Qd2 f6 12. Bd3 Bc6 13. exf6 gxf6 14. Qh6 Kf7 15. 0-0 Ng6 16. g3 Rag8 17. Nh4 Nf4 18. Rfe1 b6 19. Bb4 Rg5 20. Nf5 Nb7 21. h4 Rgg8 22. Nd6+ Nxd6 23. Qxf4 Ne8 24. Qxc7+ Nxc7 25. a5 Rd8 26. axb6 axb6 27. Ra7 Rd7 28. Bd6 Nb5 29. Rxd7+ Bxd7 30. Bb4 h6 31. Ra1 Bc6 32. Bxb5 Bxb5 33. Ra7+ Kg6 34. Rb7 Re8 35. Rxb6 Ba4 36. c4 dxc4 37. c3 1/2-1/2

[Event "DDR-ch M774 corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Weiz, Walter"]
[Black "Merker, R."]
[Result "0-1"]
[ECO "D34"]
[PlyCount "62"]
[EventDate "1985.01.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. dxc5 Bxc5 10. Na4 Be7 11. Be3 Re8 12. Nc3 Be6 13. Nd4 Qd7 14. f3 Rac8 15. Rc1 Nxd4 16. Bxd4 b6 17. g4 Rc4 18. e3 Rec8 19. g5 Ne8 20. f4 Bc5 21. a3 Bxd4 22. exd4 Nd6 23. Qd2 Nf5 24. Ne2 Qa4 25. Rxc4 Rxc4 26. Rd1 Rc2 27. Qd3 Rxb2 28. Nc3 Qxa3 29. Bxd5 Qd6 30. Bxe6 fxe6 31. Ne2 Qd5 0-1

[Event "DDR-ch M774 corr"]
[Site "DDR"]
[Date "1985.??.??"]
[Round "?"]
[White "Zill, Eberhard"]
[Black "Merker, R."]
[Result "1/2-1/2"]
[ECO "D34"]
[PlyCount "61"]
[EventDate "1985.01.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 d5 5. cxd5 exd5 6. d4 Nc6 7. Bg2 Be7 8. 0-0 0-0 9. dxc5 Bxc5 10. Bg5 d4 11. Bxf6 Qxf6 12. Nd5 Qd8 13. Nd2 Re8 14. Rc1 Bb6 15. Re1 Be6 16. Nf4 Qd7 17. Qa4 Rac8 18. Nc4 Bd8 19. b4 a6 20. Nb2 b5 21. Qxa6 Nxb4 22. Qxc8 Qxc8 23. Rxc8 Bxc8 24. a3 Na2 25. Bc6 Rf8 26. Bxb5 Nc3 27. Bc6 Ba6 28. e3 Bb6 29. exd4 Bxd4 30. a4 g5 31. Nfd3 1/2-1/2

[Event "DDR-Cup8 sf07 corr"]
[Site "DDR"]
[Date "1983.??.??"]
[Round "?"]
[White "Gehrmann, Gerhard"]
[Black "Merker, R."]
[Result "1-0"]
[ECO "E11"]
[PlyCount "63"]
[EventDate "1983.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 Bb4+ 4. Nbd2 d5 5. Qa4+ Nc6 6. a3 Be7 7. e3 Bd7 8. Qc2 0-0 9. b3 a5 10. Bb2 Na7 11. Bd3 b6 12. Ne5 dxc4 13. bxc4 Rc8 14. Ne4 c6 15. 0-0 Nxe4 16. Bxe4 b5 17. c5 Qc7 18. Bc3 Bd8 19. f4 f5 20. Bf3 Be8 21. e4 Kh8 22. g4 fxg4 23. Bxg4 Rf6 24. f5 Rb8 25. fxe6 b4 26. axb4 axb4 27. Bb2 Qe7 28. d5 Rxf1+ 29. Rxf1 Nb5 30. d6 Nxd6 31. cxd6 Qxd6 32. Rf7 1-0

[Event "DDR-Cup8 sf14 corr"]
[Site "DDR"]
[Date "1983.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Schulz"]
[Result "1/2-1/2"]
[ECO "A31"]
[PlyCount "43"]
[EventDate "1983.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 5. Nb5 d5 6. cxd5 Bc5 7. e3 0-0 8. N5c3 e4 9. Bc4 Nbd7 10. Nd2 Re8 11. Qc2 Ne5 12. Ncxe4 Nxe4 13. Qxe4 Ng4 14. Qc2 Nxf2 15. 0-0 Bxe3 16. Nf3 Ng4+ 17. Kh1 Bxc1 18. Qxc1 Qb6 19. Qd2 Ne3 20. Rfe1 Bg4 21. Bb3 Bd7 22. Rac1 1/2-1/2

[Event "DDR-Cup8 sf07 corr"]
[Site "DDR"]
[Date "1983.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Wallraf, Ulrich"]
[Result "1-0"]
[ECO "E89"]
[PlyCount "61"]
[EventDate "1983.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 c6 8. Nge2 cxd5 9. cxd5 a6 10. g4 h5 11. h3 hxg4 12. hxg4 Bxg4 13. fxg4 Nxg4 14. Qd2 f5 15. exf5 gxf5 16. 0-0-0 f4 17. Nxf4 exf4 18. Bd4 Ne5 19. Bh3 Rf6 20. Rdg1 Kf8 21. Be6 Nbd7 22. Rh7 Ng6 23. Rxg6 Rxg6 24. Bxg7+ Rxg7 25. Rh8+ Ke7 26. Rxd8 Rxd8 27. Qxf4 Rh8 28. Bxd7 Rh1+ 29. Kc2 Kxd7 30. Ne4 Rg2+ 31. Kc3 1-0

[Event "DDR corr"]
[Site "DDR"]
[Date "1982.??.??"]
[Round "?"]
[White "Lauer, Franz"]
[Black "Merker, R."]
[Result "0-1"]
[ECO "D38"]
[PlyCount "70"]
[EventDate "1982.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Bb4 5. Qa4+ Nc6 6. e3 Bd7 7. Qc2 0-0 8. Bd2 dxc4 9. Bxc4 Bd6 10. Ng5 e5 11. Nd5 g6 12. Nxf6+ Qxf6 13. Ne4 Qh4 14. g3 Qe7 15. d5 Nb4 16. Qb3 a5 17. 0-0 b5 18. Nxd6 bxc4 19. Nxc4 Rfb8 20. Bxb4 Rxb4 21. Qc3 Bb5 22. b3 Bxc4 23. bxc4 Rab8 24. a3 Rb2 25. Qxa5 h5 26. h4 Qd7 27. Rfd1 g5 28. hxg5 h4 29. Qe1 hxg3 30. Rd2 gxf2+ 31. Qxf2 Qg4+ 32. Qg2 Rb1+ 33. Rxb1 Rxb1+ 34. Kf2 Qh4+ 35. Ke2 e4 0-1

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1982.??.??"]
[Round "?"]
[White "Melzer, Georg"]
[Black "Merker, R."]
[Result "1/2-1/2"]
[ECO "B02"]
[PlyCount "60"]
[EventDate "1982.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 Ne4 4. d4 Bf5 5. Nxe4 dxe4 6. Be3 e6 7. h4 h6 8. g4 Bg6 9. h5 Bh7 10. Ne2 c5 11. c3 Nc6 12. Bg2 Qa5 13. 0-0 g6 14. Bxe4 gxh5 15. Bxh7 Rxh7 16. gxh5 cxd4 17. cxd4 Rg7+ 18. Kh2 Rd8 19. Qb3 Bd6 20. Rg1 Nxd4 21. Bxd4 Bxe5+ 22. Bxe5 Qxe5+ 23. Ng3 Rd4 24. Rge1 Rh4+ 25. Kg2 Qxh5 26. Rh1 Rxg3+ 27. Qxg3 Qd5+ 28. f3 Qd2+ 29. Qf2 Qg5+ 30. Qg3 Qd2+ 1/2-1/2

[Event "DDR-Cup corr"]
[Site "DDR"]
[Date "1981.??.??"]
[Round "?"]
[White "Merker, R."]
[Black "Starck, Erhard"]
[Result "1-0"]
[ECO "E38"]
[PlyCount "77"]
[EventDate "1981.??.??"]
[EventType "tourn (corr)"]
[EventRounds "10"]
[EventCountry "DDR"]
[SourceTitle "Corr Nr. 1"]
[Source "ChessBase"]
[SourceDate "1997.09.01"]
[SourceVersion "2"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Nf3 d5 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. Bd2 Nc6 10. Rd1 Nb4 11. Qc3 Qf5 12. Rc1 Be7 13. Qb3 a5 14. a3 Nc6 15. e3 0-0 16. Bd3 Qh5 17. 0-0 g5 18. Bc3 Bd6 19. Qb5 f5 20. Be5 Be7 21. Bc7 Bf6 22. Qb3 g4 23. Nd2 Qf7 24. Bb6 a4 25. Qa2 Bd7 26. Be2 Be5 27. f4 Bb8 28. Rfd1 Ne7 29. Ne4 Nd5 30. Ng5 Qe8 31. Rxd5 exd5 32. Qxd5+ Kg7 33. Qxb7 Bxf4 34. exf4 Rb8 35. Bd4+ Kh6 36. Qa6+ Qg6 37. Qa7 Qe8 38. Rc6+ Kh5 39. Ne6 1-0

