[Event "US Open-83"]
[Site "St Paul"]
[Date "1982.08.09"]
[Round "2"]
[White "Shapiro, Daniel E"]
[Black "Welsh, David"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2335"]
[PlyCount "100"]
[EventDate "1982.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. cxd5 exd5 6. Bg5 Be7 7. e3 0-0 8. Bd3 c6 9. Qc2 h6 10. Bh4 Re8 11. 0-0 Bd6 12. Rab1 Nf8 13. b4 Bg4 14. Nd2 Rc8 15. Na4 N8d7 16. h3 Be6 17. f4 b5 18. Nc5 Nxc5 19. dxc5 Be7 20. Nb3 Bd7 21. Na5 Qc7 22. Be1 Bd8 23. Bd2 Ne4 24. Bc1 Bf6 25. Bb2 Bxb2 26. Rxb2 Re7 27. Nb3 Rce8 28. Rf3 Qd8 29. Na5 Qc7 30. Rb1 Qc8 31. Qb2 Qc7 32. Rc1 a6 33. Rc2 Bf5 34. Qd4 Qd7 35. Rb2 Qc8 36. a3 Qd7 37. Ra2 Qe6 38. Kh2 h5 39. a4 h4 40. axb5 axb5 41. Nb3 Ng3 42. Rd2 Qg6 43. Nc1 Be4 44. Rff2 Nf5 45. Qc3 Qg3+ 46. Kg1 d4 47. exd4 Bxg2 48. Ne2 Rxe2 49. Rdxe2 Rxe2 50. Rxe2 Be4+ 0-1

[Event "US Open-82"]
[Site "Palo Alto"]
[Date "1981.??.??"]
[Round "11"]
[White "Sullivan, Martin"]
[Black "Welsh, David"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "55"]
[EventDate "1981.08.02"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 d5 5. h3 0-0 6. e3 Nbd7 7. Bd3 c5 8. c3 b6 9. 0-0 Bb7 10. Ne5 Ne4 11. Nxd7 Qxd7 12. Nxe4 dxe4 13. Bc2 Qc6 14. dxc5 Qxc5 15. Qd7 Bc6 16. Qg4 f5 17. Qh4 Rfd8 18. Bg5 Rd7 19. Bb3+ Kh8 20. Bf7 Qd6 21. Rad1 Qxd1 22. Bxg6 Kg8 23. Qxh7+ Kf8 24. Rxd1 Rxd1+ 25. Kh2 e6 26. Bf6 Rd7 27. Bxg7+ Rxg7 28. Qh8+ 1-0

[Event "corr1"]
[Site "corr"]
[Date "1972.??.??"]
[Round "?"]
[White "Harshbarger, Robert"]
[Black "Welsh, David"]
[Result "1/2-1/2"]
[ECO "C44"]
[PlyCount "103"]
[EventDate "1972.??.??"]
[EventType "tourn (corr)"]
[EventRounds "9"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 5. e5 dxc3 6. Nxc3 Bb4 7. Bd2 Nge7 8. Be2 0-0 9. 0-0 Be6 10. a3 Bxc3 11. Bxc3 Nf5 12. Bd3 a5 13. Rc1 d4 14. Bd2 Nh4 15. Ng5 Bf5 16. Bxf5 Nxf5 17. f4 h6 18. Ne4 Qh4 19. Qb3 Nxe5 20. Be1 Qg4 21. h3 Qe2 22. fxe5 Qxe4 23. Bd2 Ne3 24. Bxe3 dxe3 25. Rfe1 e2 26. Qb5 Qe3+ 27. Kh1 c6 28. Qxe2 Qxe2 29. Rxe2 Rfe8 30. Kh2 Re6 31. Kg3 Rae8 32. Kf4 f6 33. Rce1 Kf7 34. h4 a4 35. h5 b5 36. g4 c5 37. Re4 Rxe5 38. Rxe5 Rxe5 39. Rxe5 fxe5+ 40. Kxe5 b4 41. Kd5 Kf6 42. Kxc5 bxa3 43. bxa3 Kg5 44. Kb4 Kxg4 45. Kxa4 Kxh5 46. Kb4 g5 47. a4 g4 48. a5 g3 49. a6 g2 50. a7 g1Q 51. a8Q Qd4+ 52. Kb3 1/2-1/2

[Event "USA Annual op-ch69"]
[Site "Aspen"]
[Date "1968.08.??"]
[Round "?"]
[White "Sherwin, James T"]
[Black "Welsh, David"]
[Result "1-0"]
[ECO "D27"]
[PlyCount "53"]
[EventDate "1968.08.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. 0-0 a6 7. a4 Nc6 8. Qe2 cxd4 9. Rd1 Qc7 10. exd4 Be7 11. Ne5 Nb4 12. Nc3 0-0 13. a5 b5 14. axb6 Qxb6 15. Bg5 Qc7 16. Rac1 Qa5 17. Ne4 Bb7 18. Nxf6+ Bxf6 19. Bxf6 gxf6 20. Nd7 Qg5 21. f4 Qxf4 22. Nxf8 Rxf8 23. Qd2 Qd6 24. Rc3 Kh8 25. Qh6 e5 26. Rg3 Be4 27. Qg7# 1-0

