[Event "US Open-62"]
[Site "San Francisco"]
[Date "1961.08.21"]
[Round "7"]
[White "Mortz, John R"]
[Black "Gross, Ronald Joseph"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "47"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Nf5 8. Bd3 h5 9. Qf4 Nc6 10. Ne2 Nce7 11. dxc5 Qc7 12. Be3 Nxe3 13. Qxe3 Bd7 14. 0-0 0-0-0 15. Rab1 Nf5 16. Bxf5 exf5 17. c6 Bxc6 18. Qxa7 Rhe8 19. Nd4 Rxe5 20. Rb6 Rde8 21. Nxc6 bxc6 22. Qa6+ Kd8 23. Rb7 Qc8 24. Qb6+ 1-0

[Event "US Open-62"]
[Site "San Francisco"]
[Date "1961.08.20"]
[Round "6"]
[White "McCormick, James"]
[Black "Mortz, John R"]
[Result "1-0"]
[ECO "D32"]
[PlyCount "37"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Qxd5 8. Nxd5 Bd6 9. Bd2 Be6 10. e4 Bxd5 11. exd5 Nb4 12. 0-0-0 Nxd5 13. Bb5+ Kf8 14. Kb1 Ngf6 15. Nf3 h6 16. Bc4 Nb6 17. Bb3 Nc8 18. Rhe1 Ng4 19. Bb4 1-0

[Event "US Open-62"]
[Site "San Francisco"]
[Date "1961.08.17"]
[Round "4"]
[White "Kocsis, Zoltan1111"]
[Black "Mortz, John R"]
[Result "0-1"]
[ECO "B95"]
[PlyCount "50"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Be7 8. Rg1 Qc7 9. g4 Nbd7 10. 0-0-0 b5 11. Qe2 Bb7 12. Bg2 h6 13. Bxf6 Bxf6 14. Ndxb5 axb5 15. Nxb5 Qa5 16. Nxd6+ Kf8 17. Qc4 Ba6 18. Qc6 Rb8 19. c3 Qxa2 20. Nb7 Bxb7 21. Qxd7 Bg5+ 22. Rd2 Qa1+ 23. Kc2 Bxe4+ 24. Bxe4 Rxb2+ 25. Kd3 Rxd2+ 0-1

[Event "US Open-62"]
[Site "San Francisco"]
[Date "1961.08.16"]
[Round "3"]
[White "Mortz, John R"]
[Black "Bourke, Alan W"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "42"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 a6 4. d4 exd4 5. 0-0 Be7 6. c3 b5 7. Bb3 d6 8. cxd4 Nf6 9. e5 dxe5 10. dxe5 Qxd1 11. Rxd1 Nd7 12. Bd5 Bb7 13. Bxf7+ Kxf7 14. Rxd7 Rhd8 15. Rxd8 Rxd8 16. Nc3 b4 17. Ng5+ Kg8 18. Ne6 Rd7 19. Bg5 bxc3 20. Bxe7 c2 21. Re1 Rd1 0-1

[Event "US Open-62"]
[Site "San Francisco"]
[Date "1961.08.15"]
[Round "2"]
[White "Gross, Henry"]
[Black "Mortz, John R"]
[Result "1/2-1/2"]
[ECO "B93"]
[PlyCount "101"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Qc7 8. Bd3 g6 9. 0-0 Bg7 10. Qe1 Nbd7 11. Qh4 0-0 12. Ng5 h6 13. Nf3 exf4 14. Qxf4 Ne5 15. Nxe5 Qc5+ 16. Kh1 Qxe5 17. Qxe5 dxe5 18. Bxh6 Bxh6 19. Rxf6 Bf4 20. Nd5 Bg5 21. Rb6 Bd8 22. Rd6 Be6 23. Bc4 Rc8 24. Bb3 Bxd5 25. Rxd5 Kg7 26. c3 Bf6 27. Rd7 b6 28. Rd6 Bd8 29. Rf1 a5 30. g4 Rc5 31. Kg2 b5 32. Kg3 a4 33. Bd5 a3 34. Rc6 Rxc6 35. Bxc6 axb2 36. Rb1 Bg5 37. Rxb2 Rc8 38. Bxb5 Rxc3+ 39. Kg2 Re3 40. Bc6 Bf4 41. Bd5 f6 42. Rc2 Kh6 43. a4 Kg5 44. a5 Ra3 45. Ra2 Rxa2+ 46. Bxa2 Kxg4 47. h3+ Kh4 48. a6 Be3 49. Kf3 Bd4 50. Be6 Ba7 51. Bf7 1/2-1/2

[Event "US Open-62"]
[Site "San Francisco"]
[Date "1961.08.14"]
[Round "1"]
[White "Mortz, John R"]
[Black "Dimoff, Roderick"]
[Result "1-0"]
[ECO "C56"]
[PlyCount "29"]
[EventDate "1961.08.14"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. 0-0 Be7 6. e5 Ng4 7. Bf4 d6 8. exd6 Bxd6 9. Re1+ Kf8 10. Bg5 f6 11. Bd2 Nge5 12. Nxe5 fxe5 13. f4 exf4 14. Qh5 g6 15. Qh6# 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "2"]
[White "Blackstone, John"]
[Black "Mortz, John R"]
[Result "1-0"]
[ECO "C80"]
[PlyCount "67"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. Nxe5 Nxe5 9. dxe5 Be6 10. Be3 Bc5 11. Bxc5 Nxc5 12. f4 Nxb3 13. axb3 Bf5 14. Qe2 0-0 15. g4 Be4 16. Nc3 f5 17. Rad1 Qh4 18. Nxd5 Bxd5 19. Rxd5 fxg4 20. Qf2 Qh6 21. Rd7 Rae8 22. Qd4 Qg6 23. Rxc7 g3 24. h3 Qh5 25. Qd7 Qh6 26. Kg2 Rd8 27. Qg4 Rf7 28. Rc8 Rxc8 29. Qxc8+ Rf8 30. Qd7 Qb6 31. e6 Qe3 32. e7 Qe2+ 33. Kxg3 Qxf1 34. Qe6+ 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "4"]
[White "Blackstone, John"]
[Black "Mortz, John R"]
[Result "1-0"]
[ECO "C99"]
[PlyCount "65"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. d5 Nb4 15. Bb1 a5 16. a3 Na6 17. Bd3 Bd7 18. Nf1 Rfc8 19. Bd2 Nc5 20. Rc1 Qb7 21. Bb1 a4 22. Bb4 Nb3 23. Rxc8+ Rxc8 24. Nxe5 Bxh3 25. Nc6 Bg4 26. f3 Bh5 27. e5 Rxc6 28. dxc6 Qa7+ 29. Kh1 dxe5 30. Rxe5 Bxb4 31. Qd8+ Bf8 32. c7 Qf2 33. Qxf8+ 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "6"]
[White "Blackstone, John"]
[Black "Mortz, John R"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "57"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. 0-0 Nf6 5. d3 0-0 6. c4 c6 7. Bd2 Nbd7 8. Bc3 Re8 9. Nbd2 e5 10. e3 c5 11. b4 cxb4 12. Bxb4 e4 13. Nd4 exd3 14. cxd5 Nb6 15. d6 Nbd5 16. Ba3 Qa5 17. Qb3 Nxe3 18. Bb4 Qh5 19. fxe3 Rxe3 20. Rae1 Re2 21. Nxe2 dxe2 22. Rxf6 Bxf6 23. Bf3 Qe5 24. Rxe2 Qd4+ 25. Kg2 Be6 26. Rxe6 fxe6 27. Qxe6+ Kh8 28. Ne4 Bg7 29. Bc3 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "8"]
[White "Blackstone, John"]
[Black "Mortz, John R"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "27"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 g6 3. e4 Bg7 4. Nc3 e5 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5+ Ne7 8. Rd1+ Ke8 9. Bxe7 Kxe7 10. Nd5+ Kd6 11. Nb6+ Kc6 12. Nxa8 Bg4 13. b4 b6 14. Bc4 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "10"]
[White "Blackstone, John"]
[Black "Mortz, John R"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "12"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. a3 a5 2. c4 e5 3. Nc3 Nf6 4. e3 Nc6 5. Qc2 Bc5 6. Nf3 Qe7 1/2-1/2

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "1"]
[White "Mortz, John R"]
[Black "Blackstone, John"]
[Result "1-0"]
[ECO "D53"]
[PlyCount "43"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. cxd5 Nxd5 6. Bxe7 Qxe7 7. e3 c5 8. Nf3 Nc6 9. Bd3 Ndb4 10. Bb1 cxd4 11. exd4 e5 12. 0-0 exd4 13. Nxd4 Nxd4 14. Qxd4 0-0 15. Bxh7+ Kxh7 16. Rae1 Rd8 17. Qf4 Be6 18. Re5 Nd5 19. Nxd5 Rxd5 20. Qe4+ Kh8 21. Rxd5 Qf6 22. Rh5+ 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "3"]
[White "Mortz, John R"]
[Black "Blackstone, John"]
[Result "1-0"]
[ECO "B92"]
[PlyCount "74"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 b5 8. a4 b4 9. Nd5 Bb7 10. Bg5 Nbd7 11. Qd2 Nxe4 12. Qxb4 Nxg5 13. Qxb7 Qc8 14. Nc7+ Ke7 15. Qxa8 Qxc7 16. Qxa6 Qxc2 17. Qd3 Qxb2 18. 0-0 e4 19. Qe3 Qe5 20. Nd4 Qd5 21. a5 g6 22. Rfd1 Bg7 23. Nb5 Qe5 24. Nxd6 Qxa1 25. Rxa1 Bxa1 26. Nxe4 Nxe4 27. Qxe4+ Kf8 28. a6 Kg7 29. Qb7 Nc5 30. Qb1 Bd4 31. Qb4 Ne6 32. Bg4 Rc8 33. g3 Bc5 34. Qe4 Re8 35. Qc6 Re7 36. Bxe6 Ba7 37. Bd7 Re2 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "5"]
[White "Mortz, John R"]
[Black "Blackstone, John"]
[Result "1/2-1/2"]
[ECO "C84"]
[PlyCount "40"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. e5 Ne4 7. 0-0 Be7 8. Bxc6 dxc6 9. Re1 Nc5 10. Nxd4 0-0 11. Nc3 Re8 12. f4 f6 13. e6 Nxe6 14. Nxe6 Qxd1 15. Nxd1 Bc5+ 16. Be3 Bxe3+ 17. Nxe3 Rxe6 18. Rad1 Rd6 19. Rxd6 cxd6 20. Nc4 Bf5 1/2-1/2

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "7"]
[White "Mortz, John R"]
[Black "Blackstone, John"]
[Result "1-0"]
[ECO "C13"]
[PlyCount "55"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 e6 4. e4 dxe4 5. Bxf6 gxf6 6. Nxe4 h5 7. h4 Bd7 8. Qf3 Be7 9. Qe3 Bc6 10. 0-0-0 Nd7 11. Nf3 Nb6 12. c4 Bf8 13. d5 Bh6 14. Neg5 Nxd5 15. cxd5 Bxd5 16. Kb1 Qe7 17. Bb5+ c6 18. Rxd5 exd5 19. Qc3 0-0-0 20. Bxc6 bxc6 21. Qxc6+ Kb8 22. Re1 Qxe1+ 23. Nxe1 fxg5 24. hxg5 Bxg5 25. Nf3 Rh6 26. Qa4 Rg6 27. Nxg5 Rxg5 28. Qf4+ 1-0

[Event "Northern California m"]
[Site "North California"]
[Date "1961.??.??"]
[Round "9"]
[White "Mortz, John R"]
[Black "Blackstone, John"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "55"]
[EventDate "1961.??.??"]
[EventType "match"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. c3 Nxf3+ 5. Qxf3 Qf6 6. Qe2 Qg6 7. 0-0 Bc5 8. a4 a5 9. Na3 c6 10. Nc2 d6 11. d4 Bb6 12. f4 Bg4 13. Qd3 d5 14. exd5 Qxd3 15. Bxd3 exd4 16. cxd4 cxd5 17. f5 f6 18. Re1+ Kd8 19. Re6 Bc7 20. Ne3 Bh5 21. Nxd5 Bb8 22. Bf4 Bf7 23. Bxb8 Rxb8 24. Rd6+ Ke8 25. Re1+ Kf8 26. Nb6 Be8 27. Rde6 Rd8 28. Rxe8+ 1-0

[Event "USA Junior-ch"]
[Site "Omaha"]
[Date "1959.07.13"]
[Round "7"]
[White "Harmon, Clark R"]
[Black "Mortz, John R"]
[Result "1-0"]
[ECO "E65"]
[PlyCount "91"]
[EventDate "1959.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. c4 0-0 5. Bg2 d6 6. Nc3 c5 7. 0-0 Nc6 8. dxc5 dxc5 9. Be3 Qb6 10. Qb3 Na5 11. Qxb6 axb6 12. Nd2 Be6 13. h3 Nxc4 14. Nxc4 Bxc4 15. Bxb7 Ra7 16. Bg2 Rd8 17. Rfe1 Nd5 18. Nxd5 Bxd5 19. Rad1 Rad7 20. Rxd5 Rxd5 21. Bxd5 Rxd5 22. b3 Bd4 23. Rd1 e6 24. Bxd4 Rxd4 25. Rxd4 cxd4 26. Kf1 Kf8 27. Ke1 Ke7 28. Kd2 Kd6 29. e3 dxe3+ 30. Kxe3 f5 31. f4 e5 32. fxe5+ Kxe5 33. a4 Kd5 34. b4 Kc4 35. a5 bxa5 36. bxa5 Kb5 37. Kf4 Kxa5 38. Kg5 Kb6 39. h4 Kc6 40. Kh6 g5 41. Kxg5 Kd6 42. Kh6 Ke5 43. Kxh7 f4 44. gxf4+ Kxf4 45. h5 Kg5 46. h6 1-0

