[Event "Toronto op"]
[Site "Toronto"]
[Date "1978.??.??"]
[Round "1"]
[White "Theodorovich, Ivan"]
[Black "Brodie, Hugh"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "121"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CAN"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d6 2. g3 e5 3. d3 Nc6 4. Bg2 g6 5. 0-0 Bg7 6. c3 Nge7 7. Nbd2 0-0 8. a4 Bd7 9. e4 Qc8 10. Nc4 f5 11. Ne1 f4 12. b4 Bg4 13. f3 Be6 14. a5 a6 15. Rb1 Kh8 16. Qe2 g5 17. g4 Ng6 18. Rf2 Nh4 19. h3 Bf6 20. Bf1 Ne7 21. Ng2 Neg6 22. Bb2 Kg7 23. d4 exd4 24. cxd4 d5 25. Nd2 Qd7 26. Qd3 Rad8 27. e5 Be7 28. Qb3 c6 29. Bd3 Rh8 30. Nf1 h5 31. Nxh4 Nxh4 32. Be2 hxg4 33. fxg4 Rh6 34. Nh2 Rdh8 35. Bf1 Qc8 36. Bc1 R8h7 37. Qd3 Bf7 38. Qc3 Be6 39. Bd2 Ng6 40. Qf3 Nh4 41. Qd1 Ng6 42. Rb3 Qd7 43. Be1 Nh4 44. Ra2 Ng6 45. Bg2 Qc8 46. Rc2 Qd7 47. Rcc3 Rh8 48. Bf1 Nh4 49. Bxh4 Rxh4 50. Rc2 Bd8 51. Bg2 Be7 52. Bf1 Bd8 53. Rcc3 Be7 54. Rf3 Bd8 55. Rfc3 Be7 56. Rf3 Bd8 57. Rfc3 Be7 58. Rb2 Bd8 59. Bg2 Be7 60. Rcb3 Bd8 61. Bf1 1/2-1/2

[Event "Ontario op"]
[Site "Ottawa"]
[Date "1969.05.19"]
[Round "5"]
[White "Zalys, Ignas"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "129"]
[EventDate "1969.05.17"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Be6 8. Nc4 Rc8 9. Ne3 g6 10. Ncd5 Bg7 11. c3 Nf6 12. Bd3 0-0 13. 0-0 Nd7 14. a4 f5 15. f3 f4 16. Nc4 Bxd5 17. exd5 Ne7 18. a5 Rf6 19. Nd2 Nf5 20. Ne4 Rf8 21. b4 h6 22. Bd2 Kh8 23. Rc1 Nf6 24. c4 Rc7 25. Nxf6 Bxf6 26. Be4 Qc8 27. Qc2 Nd4 28. Qd3 g5 29. Be1 Qd7 30. Bf2 Qa4 31. Bxd4 exd4 32. Rb1 Be5 33. Rfc1 Qd7 34. Qd2 h5 35. Bg6 h4 36. h3 Qg7 37. Bd3 Re8 38. Re1 Qf6 39. Re4 Qd8 40. Kh1 Rg7 41. Rbe1 Ree7 42. Rf1 b6 43. axb6 Qxb6 44. Rc1 Rc7 45. c5 Qb7 46. cxd6 Bxd6 47. Rxc7 Rxc7 48. Rxd4 Be5 49. Re4 Qxd5 50. Qe1 Bf6 51. Bxa6 Qa2 52. Bd3 Kg7 53. Re8 Qd5 54. Be4 Qd4 55. Kh2 Qa7 56. Ra8 Qd4 57. b5 Qe3 58. Qd1 Bd4 59. Rd8 Bb6 60. Qa1+ Kf7 61. Rd6 Rc3 62. Qd1 Rc7 63. Qd5+ Kf8 64. Rf6+ Ke8 65. Bg6+ 1-0

[Event "Greater Chicago op"]
[Site "Chicago"]
[Date "1968.??.??"]
[Round "8"]
[White "Theodorovich, Ivan"]
[Black "Webster, Peter"]
[Result "0-1"]
[ECO "E61"]
[PlyCount "74"]
[EventDate "1968.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Nf6 3. e3 g6 4. c4 Bg7 5. Nc3 0-0 6. Be2 Nbd7 7. 0-0 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qc2 c6 11. b3 Qc7 12. a4 e4 13. Bb2 Bf5 14. a5 Rfe8 15. b4 h5 16. Na4 Nd7 17. Bxg7 Kxg7 18. Qc3+ Qe5 19. Rac1 Rad8 20. f4 exf3 21. gxf3 Qxc3 22. Rxc3 Re5 23. Rd1 Rde8 24. Kf2 Nf6 25. Nc5 R5e7 26. Bf1 g5 27. a6 bxa6 28. Be2 g4 29. f4 Rb8 30. Ra3 Rxb4 31. Rxa6 Rb2 32. Ra3 h4 33. Re1 g3+ 34. hxg3 h3 35. Nd3 Ng4+ 36. Kf1 h2 37. Kg2 Rxe2+ 0-1

[Event "Kingston CAN op"]
[Site "Kingston"]
[Date "1966.??.??"]
[Round "8"]
[White "Coudari, Camille"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "99"]
[EventDate "1966.09.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CAN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 b6 3. Bf4 Bb7 4. Nd2 g6 5. f3 Bg7 6. e4 0-0 7. Bd3 c5 8. Ne2 cxd4 9. cxd4 d6 10. 0-0 Nc6 11. d5 Ne5 12. Bxe5 dxe5 13. Nc4 Ne8 14. Qb3 Nd6 15. a4 Rb8 16. Nc3 Nxc4 17. Bxc4 Bh6 18. Nb5 a6 19. Na3 Qd6 20. Qd3 Ra8 21. Nc2 Rfc8 22. Rf2 Qc5 23. b3 Ra7 24. Rd1 Qd6 25. g3 Rca8 26. Kg2 Bc8 27. Qe2 Qd7 28. Qd3 Rb8 29. Qc3 Qd6 30. Nb4 Rc7 31. Qe1 b5 32. axb5 axb5 33. Nc6 Rcb7 34. Bf1 Bf8 35. Ra2 Bd7 36. Ra6 Rc8 37. Qc3 f6 38. Be2 Kf7 39. Qa5 Qc5 40. Nd8+ Rxd8 41. Qxd8 Qc2 42. Re1 Rc7 43. Rc6 Rxc6 44. dxc6 Qxc6 45. Qa5 Bh6 46. Bd3 Qc5 47. Re2 f5 48. exf5 gxf5 49. Rc2 Qd5 50. Bc4 1-0

[Event "Kingston CAN op"]
[Site "Kingston"]
[Date "1966.??.??"]
[Round "6"]
[White "Theodorovich, Ivan"]
[Black "Lecornu, Phil"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "103"]
[EventDate "1966.09.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CAN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c3 Nf6 2. Nf3 b6 3. d3 d5 4. g3 Bb7 5. Bg2 Nbd7 6. Bf4 e6 7. 0-0 Bd6 8. Bxd6 cxd6 9. Nbd2 0-0 10. a4 a6 11. Nd4 Rc8 12. c4 Rc7 13. cxd5 Bxd5 14. Bxd5 Nxd5 15. Nc4 Qf6 16. e3 e5 17. Ne2 Rfc8 18. e4 Nb4 19. Nc3 Qe6 20. Ne3 Nf6 21. a5 b5 22. Qd2 Rc5 23. f4 Qh3 24. fxe5 dxe5 25. Rad1 Nc6 26. Qf2 Nd4 27. Ned5 Qe6 28. Nxf6+ Qxf6 29. Qxf6 gxf6 30. Nd5 Kg7 31. Rf2 Rc1 32. Rxc1 Rxc1+ 33. Kg2 Rc2 34. Nb4 Rxf2+ 35. Kxf2 Nb3 36. Nc6 Kf8 37. Ke3 Ke8 38. Nb4 Nxa5 39. Nxa6 Kd7 40. Nb4 Nb3 41. Nd5 Kc6 42. Nxf6 Kc5 43. Nxh7 Nd4 44. Nf6 Kb4 45. h4 Kb3 46. h5 Ne6 47. h6 Nf8 48. Nd7 Ng6 49. h7 Kxb2 50. Nxe5 Nh8 51. d4 Kc3 52. d5 1-0

[Event "Kingston CAN op"]
[Site "Kingston"]
[Date "1966.??.??"]
[Round "7"]
[White "Theodorovich, Ivan"]
[Black "Lombardy, William James"]
[Result "0-1"]
[ECO "A01"]
[PlyCount "104"]
[EventDate "1966.09.04"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CAN"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Bf5 3. d3 e6 4. g3 Nf6 5. Bg2 Nbd7 6. Nf3 c6 7. 0-0 Bc5 8. e3 Qc7 9. Nbd2 h6 10. Qe2 0-0 11. a3 a5 12. Rac1 Bh7 13. c4 Be7 14. d4 Ne4 15. Nxe4 Bxe4 16. Bh3 Bxf3 17. Qxf3 Qb6 18. Qd1 Rad8 19. Qc2 Qc7 20. Rfd1 a4 21. cxd5 exd5 22. b4 Nb6 23. Bf1 Qd7 24. Bd3 Ra8 25. Qe2 Nc8 26. e4 dxe4 27. Qxe4 f5 28. Bc4+ Kh8 29. Qe2 Nb6 30. Be6 Qd6 31. d5 Nxd5 32. Be5 Qd8 33. b5 Qe8 34. bxc6 bxc6 35. Rxc6 Qxc6 36. Bxd5 Qg6 37. Bxa8 Rxa8 38. Rd7 Bf8 39. Qb2 Kh7 40. h4 h5 41. Qd4 Re8 42. Kh2 Qg4 43. Qf4 Qxf4 44. gxf4 Rc8 45. Ra7 Rc4 46. Rf7 Kg8 47. Rxf5 Bxa3 48. Rxh5 Be7 49. Bb8 Rc5 50. Rxc5 Bxc5 51. Be5 a3 52. f5 Be7 0-1

[Event "Ontario op"]
[Site "Kingston"]
[Date "1965.??.??"]
[Round "?"]
[White "Kalotay, Andrew"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "A20"]
[PlyCount "61"]
[EventDate "1965.05.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 Nge7 4. Nc3 Nf5 5. a3 g6 6. b4 Bg7 7. Bb2 0-0 8. e3 Rb8 9. Nge2 b6 10. 0-0 Bb7 11. f4 d6 12. Qc2 h5 13. Nd5 Nh6 14. Rad1 f5 15. fxe5 dxe5 16. d4 exd4 17. Nef4 Qe8 18. exd4 Qf7 19. Nh3 Qd7 20. Kh1 Ne7 21. Ndf4 Bxg2+ 22. Qxg2 Rbe8 23. d5 Bf6 24. Ne6 Rf7 25. Nhg5 Bxg5 26. Nxg5 Rff8 27. Ba1 Ng4 28. Qb2 Nf6 29. Ne4 fxe4 30. Rxf6 Nf5 31. Rxf5 1-0

[Event "Ontario op"]
[Site "Kingston"]
[Date "1965.??.??"]
[Round "?"]
[White "Theodorovich, Ivan"]
[Black "Day, Lawrence A"]
[Result "1-0"]
[ECO "A49"]
[PlyCount "61"]
[EventDate "1965.05.22"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 c5 6. e3 cxd4 7. exd4 d6 8. Re1 Nc6 9. c3 Bg4 10. h3 Bd7 11. a4 a5 12. Na3 Na7 13. Bf1 Nc8 14. Nb5 Nd5 15. Bd2 Kh8 16. Qc1 f5 17. Bh6 f4 18. Bxg7+ Kxg7 19. g4 h5 20. g5 Bc6 21. c4 Nb4 22. d5 Bd7 23. Nbd4 Nb6 24. Re6 Kh7 25. Qc3 Rc8 26. Rae1 Rf7 27. Bd3 Bxe6 28. Bxg6+ Kxg6 29. Rxe6+ Kh7 30. Rh6+ Kg8 31. Ne6 1-0

[Event "Canadian op"]
[Site "Ottawa"]
[Date "1962.09.02"]
[Round "8.2"]
[White "Fuster, Geza"]
[Black "Theodorovich, Ivan"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "82"]
[EventDate "1962.08.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 d6 3. d4 c6 4. e4 Qc7 5. Ne2 h5 6. h3 e5 7. c4 a5 8. Nbc3 Na6 9. Be3 exd4 10. Nxd4 Nc5 11. Nb3 Nfd7 12. Nxc5 Nxc5 13. Qc2 Be6 14. Ne2 f6 15. Nd4 Bf7 16. 0-0 g6 17. b3 Be7 18. Rad1 0-0 19. Rd2 Na6 20. a3 Nc5 21. Rfd1 Nd7 22. Ne2 Rfd8 23. Bd4 a4 24. b4 Ne5 25. Bxe5 fxe5 26. Bf1 h4 27. c5 Bb3 28. cxd6 Bxd6 29. Qc1 Bxd1 30. Rxd1 Bf8 31. Rxd8 Qxd8 32. gxh4 Qxh4 33. Qc4+ Kg7 34. Ng3 Qf6 35. Qc3 Bd6 36. Qd2 Rf8 37. Bg2 c5 38. h4 cxb4 39. axb4 Qxf2+ 40. Qxf2 Rxf2 41. Kxf2 a3 0-1

[Event "Canadian op"]
[Site "Ottawa"]
[Date "1962.09.01"]
[Round "7.6"]
[White "Theodorovich, Ivan"]
[Black "Portigal, Alan"]
[Result "1-0"]
[ECO "A06"]
[PlyCount "99"]
[EventDate "1962.08.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. d3 c5 3. e4 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Nc6 6. Be3 e6 7. Nfd2 Bd6 8. Nc4 Be7 9. a4 Nf6 10. f3 b6 11. Nba3 0-0 12. c3 Rd8+ 13. Kc2 Ne8 14. Be2 Bb7 15. h4 Nd6 16. Nxd6 Bxd6 17. Nc4 Bc7 18. h5 h6 19. g4 f6 20. Rae1 Ne7 21. Nd2 e5 22. Bc4+ Kf8 23. Nf1 Bc6 24. b3 a6 25. Be2 Bd6 26. Ng3 b5 27. a5 Rac8 28. Kb2 Be8 29. Rd1 Rc6 30. Rhf1 Bc7 31. Ra1 Bb8 32. Nh1 c4 33. bxc4 bxc4 34. Kc2 Bc7 35. Rfb1 Rb8 36. Rxb8 Bxb8 37. Rb1 Rc8 38. Ng3 Ba4+ 39. Kc1 Bb5 40. Ra1 Bc7 41. Bc5 Kf7 42. Kc2 Rd8 43. Bxe7 Kxe7 44. Nf5+ Kf7 45. Ne3 Kf8 46. Bxc4 Rc8 47. Bxb5 axb5 48. Nd5 Bb8 49. Nb6 Rc7 50. Rb1 1-0

[Event "Canadian op"]
[Site "Ottawa"]
[Date "1962.08.31"]
[Round "6.1"]
[White "Witt, Laszlo"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "91"]
[EventDate "1962.08.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 a6 7. N5a3 g6 8. Be3 Bg7 9. Nc3 Nge7 10. Nc2 f5 11. f3 0-0 12. Qd2 f4 13. Bf2 Be6 14. Rd1 Nc8 15. Nd5 g5 16. b4 N6e7 17. c5 Nxd5 18. exd5 Bf5 19. Bd3 Bxd3 20. Qxd3 g4 21. Na3 Qf6 22. Nc4 Rf7 23. Nd2 a5 24. b5 Qh6 25. Ke2 dxc5 26. Bxc5 b6 27. Ba3 gxf3+ 28. gxf3 Bf8 29. Rdg1+ Kh8 30. Bb2 Bg7 31. Ne4 Nd6 32. Ng5 Re7 33. Ne6 e4 34. Bxg7+ Qxg7 35. fxe4 f3+ 36. Kf2 Qb2+ 37. Ke3 Rc8 38. Qd4+ Qxd4+ 39. Kxd4 Rc4+ 40. Ke5 Nxe4 41. Rc1 Nc3 42. Rhf1 Rd7 43. Rxf3 Rxd5+ 44. Kf6 Rc8 45. Rfxc3 Rg8 46. Rc8 1-0

[Event "Canadian op"]
[Site "Ottawa"]
[Date "1962.08.29"]
[Round "4.5"]
[White "Haley, Philip G"]
[Black "Theodorovich, Ivan"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "94"]
[EventDate "1962.08.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d3 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. 0-0 0-0 6. Nbd2 c5 7. e4 Nc6 8. Re1 d4 9. Nc4 b5 10. e5 Nd5 11. Ncd2 Bb7 12. Ne4 h6 13. c4 bxc4 14. dxc4 Nb6 15. b3 Nd7 16. Ned2 Qc7 17. Qe2 Rfd8 18. a3 a5 19. Nf1 Rab8 20. Bd2 Ba6 21. Rab1 Rb6 22. Bc1 Rdb8 23. N1d2 a4 24. b4 cxb4 25. axb4 Bxb4 26. Ra1 Nc5 27. Rd1 Bc3 28. Ra3 Na5 29. Bf1 Rb4 30. Nh4 Nab3 31. Nxb3 Rxb3 32. Qg4 Kf8 33. Ra2 Rb1 34. Ba3 Rxd1 35. Qxd1 Kg8 36. Bxc5 Qxc5 37. Rxa4 Bb7 38. Bd3 Qxe5 39. Qe2 Qxe2 40. Bxe2 Bc6 41. Ra2 Rb1+ 42. Bf1 Be4 43. f3 Bd3 44. Rf2 g5 45. Ng2 Bd2 46. h4 Be3 47. Nxe3 dxe3 0-1

[Event "Canadian op"]
[Site "Ottawa"]
[Date "1962.08.27"]
[Round "2.3"]
[White "Bouchoux, E."]
[Black "Theodorovich, Ivan"]
[Result "1/2-1/2"]
[ECO "E67"]
[PlyCount "162"]
[EventDate "1962.08.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. g3 Bg7 5. Nc3 0-0 6. Bg2 Nbd7 7. 0-0 e5 8. dxe5 dxe5 9. e4 Re8 10. Qe2 c6 11. Rd1 Qe7 12. Rb1 Nf8 13. h3 a5 14. Be3 N6d7 15. Qd2 Ne6 16. Na4 Ndc5 17. Nc3 Nf8 18. Ne1 Nfe6 19. Nd3 Nxd3 20. Qxd3 Rd8 21. Qe2 Nd4 22. Qf1 Be6 23. b3 Qb4 24. Rbc1 h6 25. f4 f6 26. Qf2 Qd6 27. Na4 c5 28. Nc3 Bf7 29. Nd5 Rf8 30. f5 g5 31. g4 Kh7 32. Rd2 Rh8 33. Qg3 Ra6 34. Rf1 Kg8 35. Bf2 h5 36. Qe3 hxg4 37. hxg4 b6 38. Bg3 Bxd5 39. exd5 Ra7 40. Rff2 Bf8 41. Bf1 Rah7 42. Rh2 Rxh2 43. Bxh2 Qe7 44. Bd3 Qh7 45. Rg2 Bd6 46. Qg3 Kf7 47. Be4 Qg7 48. Qf2 Rh3 49. Rg3 Qh6 50. Qg2 Rh4 51. Re3 Qh8 52. a4 Ke8 53. Rc3 Kd7 54. Re3 Kc7 55. Qg3 Kb7 56. Kg2 Ka7 57. Bg1 Rh7 58. Re1 Bc7 59. Bf2 Qf8 60. Rh1 Ne2 61. Qf3 Rxh1 62. Kxh1 Qh6+ 63. Kg2 Nf4+ 64. Kf1 Bd6 65. Ke1 Kb8 66. Kd2 Qh2 67. Qg3 Qh7 68. Be3 Kc7 69. Bg1 Be7 70. Be3 Kd6 71. Bf2 Qh8 72. Ke3 Kd7 73. Kd2 Qa8 74. Qf3 Bd6 75. Qh1 Qc8 76. Qh7+ Be7 77. Be3 Qc7 78. Qf7 Qd6 79. Qg8 Bd8 80. Qf7+ Be7 81. Qg8 Bd8 1/2-1/2

[Event "Canadian op"]
[Site "Ottawa"]
[Date "1962.08.26"]
[Round "1.4"]
[White "Theodorovich, Ivan"]
[Black "Day, Lawrence A"]
[Result "1-0"]
[ECO "A49"]
[PlyCount "59"]
[EventDate "1962.08.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c3 d6 6. d4 Nbd7 7. Nbd2 c5 8. e3 b6 9. Ng5 Rb8 10. f4 h6 11. Nh3 d5 12. a4 Ba6 13. Re1 h5 14. Nf2 e6 15. Nf3 Rc8 16. h3 Kh7 17. Ng5+ Kh8 18. g4 Bh6 19. Nf3 Bg7 20. Ne5 hxg4 21. hxg4 Nxe5 22. dxe5 Nh7 23. g5 Rg8 24. Qg4 Bf8 25. Qh4 Rg7 26. Ng4 Kg8 27. Kf2 Be7 28. Rh1 Bxg5 29. fxg5 Qxg5 30. Nf6+ 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.12"]
[Round "9"]
[White "Brasket, Curt Justin"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "B32"]
[PlyCount "95"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 a6 7. N5a3 g6 8. Nc3 Bg7 9. Be3 Nge7 10. Nc2 f5 11. f3 f4 12. Bf2 Be6 13. Qd2 0-0 14. Rd1 Nc8 15. Be2 Rf7 16. 0-0 Qg5 17. Kh1 Qh5 18. Nd5 g5 19. b4 g4 20. fxg4 Bxg4 21. Bxg4 Qxg4 22. Ne1 N8e7 23. Nf3 Nxd5 24. cxd5 Ne7 25. Rc1 Ng6 26. h3 Qh5 27. Rc2 Bf6 28. Rfc1 Nh4 29. Bxh4 Bxh4 30. Rc8+ Rxc8 31. Rxc8+ Kg7 32. Qc2 Be7 33. Rb8 b5 34. Ra8 Qg6 35. Rxa6 Bd8 36. Nxe5 Qg3 37. Nf3 Rc7 38. Rc6 Rd7 39. e5 dxe5 40. Qe4 Re7 41. d6 Re6 42. Rc7+ Kf6 43. Rd7 Qg6 44. Qxg6+ hxg6 45. Rxd8 e4 46. Rf8+ Kg7 47. d7 exf3 48. d8Q 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.10"]
[Round "7"]
[White "Theodorovich, Ivan"]
[Black "Cobo Arteaga, Eldis"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "92"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. g3 Nc6 3. Bg2 g6 4. Ne2 Bg7 5. c3 e5 6. d3 d6 7. 0-0 Nh6 8. Nd2 0-0 9. Nc4 f5 10. f4 Kh8 11. fxe5 Nxe5 12. Nxe5 dxe5 13. Be3 Qd6 14. h3 Be6 15. Qd2 Ng8 16. Rfd1 Rad8 17. Qc2 f4 18. gxf4 exf4 19. Nxf4 Rxf4 20. Bxf4 Qxf4 21. Qf2 Qg5 22. h4 Qe5 23. d4 cxd4 24. cxd4 Rxd4 25. Rxd4 Qxd4 26. Qxd4 Bxd4+ 27. Kh1 b6 28. Rb1 Bxa2 29. Ra1 Bc4 30. Rxa7 b5 31. Rb7 Bxb2 32. h5 Nf6 33. hxg6 hxg6 34. Bf3 g5 35. Kg1 g4 36. Bd1 Bd3 37. Kf2 Bd4+ 38. Kg3 Nxe4+ 39. Kxg4 Nf2+ 40. Kf4 Nxd1 41. Rd7 Nc3 42. Kg5 Ne2 43. Rb7 Kg8 44. Kg4 Bc3 45. Kf3 Kf8 46. Ke3 Bc4 0-1

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.09"]
[Round "6"]
[White "Marchand, Erich Watkinson"]
[Black "Theodorovich, Ivan"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "97"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 d6 4. e4 e5 5. d4 exd4 6. Nxd4 Bg7 7. h3 0-0 8. Be2 Re8 9. Qd3 Nbd7 10. Nb3 Ne5 11. Qc2 Be6 12. Nd5 Nfd7 13. 0-0 Nc5 14. Be3 b6 15. Rad1 Nxb3 16. axb3 f5 17. Nf4 Bd7 18. exf5 Bxf5 19. Qd2 Be4 20. Nd5 Nf7 21. Nc3 Bb7 22. Bd4 Bh6 23. f4 c5 24. Bf2 Qf6 25. Bg3 Bg7 26. Bf3 Bxf3 27. Rxf3 Rad8 28. Kh2 Nh6 29. Rd3 Re6 30. Re1 Rxe1 31. Qxe1 Nf5 32. Nd5 Qf7 33. Qd2 Re8 34. Bf2 h5 35. b4 Re4 36. b3 Kh7 37. g4 hxg4 38. hxg4 Nh6 39. Qd1 Qe6 40. Rh3 Kg8 41. Rg3 Re2 42. Kg1 Bd4 43. Nf6+ Kf7 44. f5 Bxf2+ 45. Kf1 gxf5 46. gxf5 Nxf5 47. Rg7+ Kxf6 48. Qxe2 Qxe2+ 49. Kxe2 0-1

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.07"]
[Round "4"]
[White "Byrne, Donald"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "A24"]
[PlyCount "99"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e4 d6 6. Nge2 Nbd7 7. 0-0 e5 8. d3 c6 9. h3 Qe7 10. f4 Rd8 11. f5 Nb6 12. g4 d5 13. g5 dxc4 14. gxf6 Bxf6 15. Rf3 gxf5 16. exf5 cxd3 17. Ng3 d2 18. Bxd2 Nc4 19. Nge4 Nxd2 20. Nxd2 Bg5 21. Nce4 Bxd2 22. Nxd2 Qg5 23. Rf2 Bxf5 24. Qe1 f6 25. Kh1 Kh8 26. Nf3 Qh5 27. Ng1 Rd4 28. Qc3 Rd3 29. Qc5 Bxh3 30. Bxh3 Rxh3+ 31. Nxh3 Qxh3+ 32. Rh2 Qf3+ 33. Rg2 Rg8 34. Qf2 Qh3+ 35. Rh2 Qe6 36. Rg1 Qd5+ 37. Rgg2 Rg6 38. Qd2 Kg7 39. Qxd5 cxd5 40. Rc2 Kf7 41. Rxh7+ Ke6 42. Rxb7 d4 43. Rxa7 d3 44. Rd2 e4 45. Ra3 Rg3 46. b4 Kd5 47. Rb3 Kd4 48. b5 Ke3 49. Rbb2 Kd4 50. b6 1-0

[Event "US Open-59"]
[Site "Rochester"]
[Date "1958.08.06"]
[Round "3"]
[White "Rein, Sheldon"]
[Black "Theodorovich, Ivan"]
[Result "0-1"]
[ECO "B32"]
[PlyCount "86"]
[EventDate "1958.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nf3 Nf6 6. a3 d6 7. Nc3 Be7 8. h3 0-0 9. Bc4 Be6 10. Qe2 Rc8 11. Bxe6 fxe6 12. 0-0 Nd4 13. Nxd4 exd4 14. Nb5 Qb6 15. c3 dxc3 16. Nxc3 Nd7 17. Be3 Qa5 18. Rfd1 a6 19. Qg4 Rf6 20. Nd5 exd5 21. Qxd7 Rc7 22. Qe8+ Rf8 23. Qh5 Bf6 24. Rd2 g6 25. Qxd5+ Qxd5 26. exd5 Rfc8 27. Rad1 Kf7 28. Bd4 Rc1 29. Kf1 Bxd4 30. Rxd4 Rxd1+ 31. Rxd1 Rc2 32. b4 Rc3 33. Ra1 Kf6 34. f4 Kf5 35. Ke2 Kxf4 36. Rf1+ Ke4 37. Rf7 b5 38. Rxh7 Rxa3 39. Rg7 Ra2+ 40. Kf1 Kxd5 41. Rxg6 a5 42. bxa5 b4 43. Rg8 b3 0-1

[Event "US Open-58"]
[Site "Cleveland"]
[Date "1957.08.14"]
[Round "10"]
[White "Siegel, Morton"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "E72"]
[PlyCount "63"]
[EventDate "1957.08.05"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3 0-0 6. Bg2 c5 7. Nge2 Nc6 8. d5 Ne5 9. b3 Bg4 10. f4 Nf3+ 11. Bxf3 Bxf3 12. 0-0 Bxe4 13. Bb2 Bf5 14. Qd2 Qd7 15. Rfe1 h5 16. Nd1 Ne4 17. Qc1 h4 18. gxh4 Nf6 19. Ng3 Bg4 20. Ne3 Bh3 21. Kf2 Ng4+ 22. Nxg4 Bxg4 23. Rg1 e5 24. fxe5 dxe5 25. Qg5 Kh7 26. h5 Rae8 27. Rae1 Bh6 28. Qf6 Re6 29. Ne4 Ra6 30. Rxg4 Rg8 31. a4 Rb6 32. d6 1-0

[Event "US Open-58"]
[Site "Cleveland"]
[Date "1957.08.13"]
[Round "9"]
[White "Theodorovich, Ivan"]
[Black "Waltz, Glenn"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "85"]
[EventDate "1957.08.05"]
[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 e5 2. d3 Nf6 3. Nf3 d6 4. g3 Be7 5. Bg2 Bg4 6. h3 Bh5 7. 0-0 Nc6 8. c3 Nd7 9. Nbd2 0-0 10. Qc2 Bg6 11. Nc4 Kh8 12. Ne3 Nb6 13. Nf5 Bf6 14. g4 h6 15. Be3 Ne7 16. h4 Nxf5 17. exf5 Bh7 18. g5 hxg5 19. hxg5 Be7 20. d4 exd4 21. cxd4 Nd5 22. Bd2 c6 23. Kh2 Qd7 24. Bh3 Bd8 25. Rh1 Ne7 26. Nh4 f6 27. Ng6+ Bxg6 28. fxg6 f5 29. Kg2 Kg8 30. Qb3+ d5 31. Bb4 Qe6 32. Rae1 Qxg6 33. f4 Re8 34. Qe3 a5 35. Ba3 b6 36. Qe6+ Qxe6 37. Rxe6 Kf7 38. Rhe1 g6 39. Rf6+ Kg7 40. Ree6 Ra7 41. Bd6 Kh7 42. Be5 Kg7 43. Rxf5+ 1-0

[Event "US Open-58"]
[Site "Cleveland"]
[Date "1957.08.12"]
[Round "8"]
[White "Byrne, Robert Eugene"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "E69"]
[PlyCount "181"]
[EventDate "1957.08.05"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nbd7 7. 0-0 e5 8. e4 exd4 9. Nxd4 Nc5 10. h3 Re8 11. Re1 a5 12. Qc2 a4 13. Be3 c6 14. Rab1 Nfd7 15. b4 axb3 16. axb3 Ne6 17. Red1 Qe7 18. b4 Ne5 19. Nce2 Ra3 20. Rb3 Rxb3 21. Nxb3 Nc7 22. Na5 Na6 23. Qa4 Nxc4 24. Nxc4 b5 25. Qc2 bxc4 26. Qxc4 Nb8 27. Nd4 Bb7 28. Kh2 Rc8 29. Nb3 Ba6 30. Qc2 Bf8 31. Na5 Bb5 32. h4 Qc7 33. Bh3 Rd8 34. Nc4 Qe7 35. Bb6 Rd7 36. Bxd7 Nxd7 37. Be3 d5 38. exd5 Qxb4 39. dxc6 Bxc6 40. Rc1 Bd5 41. Qd2 Qb5 42. Qd3 Ba8 43. Ra1 Bc6 44. Rd1 Bf3 45. Qxd7 Qxc4 46. Rc1 Qd5 47. Qxd5 Bxd5 48. Rc8 Be6 49. Rb8 Kg7 50. Bd4+ f6 51. Bxf6+ Kf7 52. Bc3 h5 53. Rb7+ Kg8 54. f3 Bf5 55. Be5 Be6 56. Rb6 Bf5 57. g4 hxg4 58. fxg4 Be4 59. Kg3 Bd3 60. Rb7 Be4 61. Rb6 Bd3 62. Kf4 Bh6+ 63. g5 Bf8 64. h5 gxh5 65. g6 Bh6+ 66. Kg3 Kf8 67. g7+ Bxg7 68. Rb8+ Kf7 69. Rb7+ Kg6 70. Rxg7+ Kf5 71. Bd4 Be2 72. Bb6 Bg4 73. Bd8 Ke4 74. Rg5 Bf3 75. Bf6 Bg4 76. Re5+ Kd3 77. Kf2 Kc2 78. Ke3 Kb3 79. Kd3 Bd1 80. Rb5+ Ka4 81. Rb2 Bg4 82. Kc4 Be6+ 83. Kc5 Ka3 84. Rb6 Bg4 85. Rb4 Be6 86. Bb2+ Ka2 87. Bc1 Bd7 88. Rb2+ Ka1 89. Kb4 h4 90. Ka3 h3 91. Bf4 1-0

[Event "Tartakover Memorial op"]
[Site "Detroit"]
[Date "1956.09.03"]
[Round "8"]
[White "Skema, Kazys"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "E90"]
[PlyCount "105"]
[EventDate "1956.08.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Bf4 c5 7. d5 Nbd7 8. Qd2 Re8 9. Be2 a6 10. 0-0 Qc7 11. Rfe1 Ng4 12. Rad1 Nge5 13. Nxe5 dxe5 14. Bg5 Qd6 15. Bd3 b6 16. Qe2 Nf6 17. h3 Bd7 18. f4 Nh5 19. f5 Reb8 20. a4 Nf6 21. g4 Ne8 22. Rf1 Nc7 23. Qf2 f6 24. Be3 a5 25. Nb5 Nxb5 26. cxb5 Kf7 27. Kh1 Rh8 28. Be2 Rag8 29. Rg1 Kf8 30. b4 axb4 31. a5 h5 32. g5 gxf5 33. axb6 fxg5 34. Bxc5 Qf6 35. b7 Kf7 36. Ba7 f4 37. b8Q Rxb8 38. Bxb8 Rxb8 39. Qa7 f3 40. Rdf1 g4 41. Qxd7 Qh4 42. Rg2 Bf6 43. Rxf3 Rb6 44. d6 Rxd6 45. Bc4+ Kg7 46. Qe8 Kh6 47. Rfg3 Rd2 48. Kh2 Rxg2+ 49. Kxg2 Bg7 50. hxg4 hxg4 51. Qc6+ Bf6 52. Qe6 Qg5 53. Qxg4 1-0

[Event "Tartakover Memorial op"]
[Site "Detroit"]
[Date "1956.09.03"]
[Round "7"]
[White "Theodorovich, Ivan"]
[Black "Byrne, Donald"]
[Result "0-1"]
[ECO "A04"]
[PlyCount "92"]
[EventDate "1956.08.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 d6 6. Nbd2 e5 7. a4 Nge7 8. Nc4 0-0 9. c3 h6 10. 0-0 Be6 11. Nfd2 d5 12. exd5 Bxd5 13. Ne4 b6 14. Ne3 Be6 15. f4 f5 16. Nf2 exf4 17. gxf4 Qd7 18. Bd2 Rae8 19. Rb1 Ba2 20. Ra1 Bf7 21. Rb1 Ba2 22. Ra1 Bf7 23. Qc2 g5 24. Nc4 g4 25. Rfe1 Ng6 26. Bh1 h5 27. Be3 Bh6 28. a5 Bd5 29. axb6 Bxh1 30. Nxh1 Nh4 31. Nd2 Qd5 32. Qb3 Nf3+ 33. Kf2 Qxb3 34. Nxb3 Nxe1 35. Rxe1 axb6 36. Ng3 h4 37. Nf1 Ne7 38. c4 Ng6 39. d4 cxd4 40. Bxd4 Nxf4 41. Rd1 Re2+ 42. Kg1 g3 43. hxg3 hxg3 44. Nfd2 Rfe8 45. Nf3 Nh3+ 46. Kh1 g2+ 0-1

[Event "Tartakover Memorial op"]
[Site "Detroit"]
[Date "1956.09.01"]
[Round "3"]
[White "Tejada, Humberto"]
[Black "Theodorovich, Ivan"]
[Result "0-1"]
[ECO "E91"]
[PlyCount "48"]
[EventDate "1956.08.31"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Bg5 c6 7. Be2 Qa5 8. Qd2 Nbd7 9. 0-0 Re8 10. Rfe1 e5 11. d5 cxd5 12. Nxd5 Qxd2 13. Nxf6+ Bxf6 14. Bxd2 Nc5 15. Bf1 a5 16. Rad1 Be7 17. Bc3 Na4 18. Bd2 Nxb2 19. Rb1 Na4 20. Re3 Nc5 21. Bc3 Bd7 22. Nd2 Bc6 23. f3 Bg5 24. Ree1 Na4 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "7"]
[White "Mednis, Edmar John"]
[Black "Theodorovich, Ivan"]
[Result "1/2-1/2"]
[ECO "B32"]
[PlyCount "114"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Be2 Nd4 10. 0-0 0-0 11. Nc2 Nxe2+ 12. Qxe2 b5 13. cxb5 axb5 14. Nxb5 Ba6 15. a4 Bxb5 16. axb5 Rxa1 17. Nxa1 Qa8 18. Bg5 Rb8 19. Nc2 d5 20. Bxf6 Bxf6 21. exd5 Qxd5 22. Na3 e4 23. Qc2 Qd4 24. Rd1 Qb4 25. Rd2 Bd4 26. Re2 f5 27. Qc7 Rf8 28. Qc4+ Qxc4 29. Nxc4 Ra8 30. g3 Ra4 31. b3 Rb4 32. Rd2 Bf6 33. b6 Kf7 34. b7 Rxb3 35. Rd7+ Kg6 36. Na5 Rb1+ 37. Kg2 Be5 38. Nc6 Kf6 39. Nxe5 Kxe5 40. Rxg7 h6 41. Rh7 Kf6 42. Rxh6+ Kg7 43. Rc6 Rxb7 44. Rc2 Kf6 45. Kf1 Kg5 46. h3 Rb5 47. Rc8 Rb1+ 48. Ke2 Rb2+ 49. Ke3 Rb3+ 50. Ke2 Rb2+ 51. Ke3 Rb3+ 52. Kd2 Kf6 53. Rc6+ Ke5 54. Rc3 Rb1 55. Ra3 Rh1 56. Ra5+ Kd4 57. Rxf5 Rxh3 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "5"]
[White "Saidy, Anthony Fred"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "73"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 h6 6. Bf4 Nbd7 7. Be3 e5 8. d5 0-0 9. f3 Nh7 10. Qd2 f5 11. 0-0-0 f4 12. Bf2 Nhf6 13. Kb1 Ne8 14. Nge2 c5 15. dxc6 bxc6 16. c5 Rf6 17. Nc1 Qe7 18. Nd5 Qd8 19. Nxf6+ Bxf6 20. cxd6 a5 21. Nb3 a4 22. Nc5 Nxc5 23. Bxc5 Bd7 24. Bc4+ Kh7 25. Qb4 Qc8 26. Rd3 g5 27. Ra3 g4 28. Rxa4 Rb8 29. Qa3 h5 30. Ra7 Kh6 31. Qa5 Bd8 32. Qc3 Bf6 33. g3 gxf3 34. Qd2 Ra8 35. Rxa8 Qxa8 36. gxf4 Kh7 37. fxe5 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "10"]
[White "Sherwin, James T"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "E88"]
[PlyCount "79"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c6 7. Qd2 e5 8. d5 cxd5 9. cxd5 Ne8 10. g4 f5 11. gxf5 gxf5 12. Bg5 Bf6 13. h4 f4 14. 0-0-0 Kh8 15. Bh3 Nd7 16. Nge2 Nc5 17. Rdg1 Bxh3 18. Rxh3 b5 19. Kb1 b4 20. Nd1 Qb6 21. Rh2 Rc8 22. Rhg2 Na4 23. Bh6 Nc7 24. Bxf8 Rxf8 25. Qc2 Nc5 26. Rg4 Qb5 27. Nc1 Qd7 28. Nd3 Nxd3 29. Qxd3 Rc8 30. Nf2 Nb5 31. h5 Nd4 32. h6 Qc7 33. b3 Nc2 34. Nh3 Ne3 35. Rg7 Bxg7 36. hxg7+ Kg8 37. Ng5 Qa5 38. Nxh7 Kxh7 39. Qe2 Qd8 40. g8Q+ 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "2"]
[White "Smith, Kenneth Ray"]
[Black "Theodorovich, Ivan"]
[Result "0-1"]
[ECO "B32"]
[PlyCount "88"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. f3 Be6 7. N5c3 a6 8. Nd5 Bxd5 9. exd5 Nd4 10. c3 Nf5 11. Qa4+ b5 12. Qc2 Qc8 13. Bd3 Nge7 14. a4 b4 15. a5 bxc3 16. Qa4+ Qd7 17. Nxc3 Nd4 18. b4 Qxa4 19. Rxa4 g6 20. b5 axb5 21. Nxb5 Nxd5 22. Nxd4 exd4 23. 0-0 Nc7 24. Re1+ Be7 25. a6 Kd7 26. a7 d5 27. Bf4 Bd6 28. Bxd6 Kxd6 29. Rea1 Rhd8 30. Rxd4 Ne6 31. Rb4 Rd7 32. Ra6+ Ke7 33. Rb5 Nf4 34. Bf1 d4 35. g3 Ne6 36. Rba5 d3 37. Ra1 d2 38. Be2 Nd4 39. Bd1 Nb5 40. Ba4 Raxa7 41. Bxb5 d1Q+ 42. Rxd1 Rxd1+ 43. Kg2 Rb7 44. Be2 Rb2 0-1

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "12"]
[White "Steinmeyer, Robert H"]
[Black "Theodorovich, Ivan"]
[Result "1-0"]
[ECO "E74"]
[PlyCount "61"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 h6 7. Bf4 c5 8. d5 Nbd7 9. Qd2 Qa5 10. Nf3 g5 11. Bg3 Nh5 12. Rc1 Nxg3 13. hxg3 Nf6 14. Nh2 e6 15. dxe6 fxe6 16. 0-0 Ne8 17. Ng4 Qd8 18. e5 h5 19. Nf6+ Bxf6 20. exf6 Qxf6 21. Ne4 Qe5 22. Nxg5 Ng7 23. Nf3 Qf6 24. Qxd6 Qxb2 25. Bd3 Qb6 26. Bh7+ Kxh7 27. Qxf8 Qc7 28. Rcd1 Nf5 29. Rd8 Qg7 30. Qe8 Kh6 31. Rxc8 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "11"]
[White "Theodorovich, Ivan"]
[Black "Brandts, Paul"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "129"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. d3 Bc5 3. Nf3 d6 4. g3 Nc6 5. c3 Nf6 6. Bg2 Qe7 7. 0-0 0-0 8. Nbd2 a5 9. a4 Bg4 10. h3 Be6 11. Re1 Rae8 12. Nf1 Bc8 13. Ne3 Qd8 14. Bd2 Re7 15. Nd5 Nxd5 16. exd5 Nb8 17. Ng5 Bf5 18. Ne4 Bb6 19. g4 Bxe4 20. Bxe4 Ree8 21. Qf3 Qh4 22. Kg2 g6 23. Qg3 Qxg3+ 24. fxg3 Kg7 25. Rf1 Nd7 26. h4 Nc5 27. Ra3 f6 28. b4 Nxe4 29. dxe4 axb4 30. cxb4 Rc8 31. a5 Bd4 32. b5 Bc5 33. Raf3 Ra8 34. g5 fxg5 35. Rxf8 Rxf8 36. Bxg5 Ra8 37. Bd2 Bd4 38. g4 h6 39. Rc1 Bc5 40. Bc3 Kf6 41. Kf3 Ke7 42. Ke2 Rf8 43. Bxe5 Rf2+ 44. Ke1 Rf3 45. g5 hxg5 46. hxg5 Re3+ 47. Kd2 Rxe4 48. Bf6+ Ke8 49. Rh1 Rb4 50. Rh8+ Kf7 51. Rh7+ Kf8 52. Rxc7 Rxb5 53. Kd3 Bg1 54. Ke4 Rb4+ 55. Kf3 Rb5 56. Rg7 Rxd5 57. Rxg6 Rxa5 58. Rg7 Bh2 59. Rxb7 Be5 60. Be7+ Kg8 61. Kg4 d5 62. Kf5 d4 63. Bb4 Bc7+ 64. Bxa5 Bxa5 65. Rd7 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "3"]
[White "Theodorovich, Ivan"]
[Black "Donovan, Jeremiah"]
[Result "1/2-1/2"]
[ECO "A08"]
[PlyCount "105"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. d3 e6 3. g3 d5 4. Nd2 b6 5. Bg2 Bb7 6. Ngf3 Be7 7. 0-0 Nf6 8. Re1 0-0 9. c3 dxe4 10. Ng5 Qxd3 11. Ndxe4 Qa6 12. Qc2 Nbd7 13. Bf1 c4 14. b3 Nxe4 15. Nxe4 Ne5 16. Ng5 Bxg5 17. Rxe5 Bxc1 18. Rxc1 b5 19. Bg2 Bxg2 20. Kxg2 Rfd8 21. bxc4 bxc4 22. Qe2 Rd3 23. Qe4 Rad8 24. Rc5 Rd2 25. Rxc4 Qxa2 26. Rf1 a5 27. Ra4 Qd5 28. Qxd5 R2xd5 29. Rfa1 Ra8 30. Rc4 Kf8 31. Raa4 Ke7 32. Rc7+ Rd7 33. Rc5 Rda7 34. Kf3 Kd6 35. Rh5 h6 36. Ke3 f5 37. g4 fxg4 38. Rh4 Rc8 39. c4 Rb8 40. Rxg4 Rb3+ 41. Ke2 Rh3 42. Rd4+ Ke5 43. c5 Rc3 44. f4+ Kf5 45. Rdc4 Rxc4 46. Rxc4 e5 47. c6 Rc7 48. Ke3 exf4+ 49. Rxf4+ Ke6 50. Ra4 Ra7 51. Rd4 a4 52. c7 Rxc7 53. Rxa4 1/2-1/2

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "8"]
[White "Theodorovich, Ivan"]
[Black "Gross, Henry"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "65"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. g3 d5 5. Nbd2 dxe4 6. dxe4 Bg4 7. h3 Bh5 8. Bb5 Qd6 9. Qe2 0-0-0 10. c3 Nd7 11. 0-0 f6 12. Re1 g5 13. b4 Bf7 14. Nc4 Qe6 15. Be3 a6 16. Bxc6 Qxc6 17. Na5 Qxe4 18. Nd2 Qf5 19. b5 Nb8 20. bxa6 bxa6 21. Rab1 Qd3 22. Ba7 Qxe2 23. Rxb8+ Kd7 24. Rxd8+ Kxd8 25. Rxe2 Bxa2 26. Ne4 Be6 27. Nxf6 Ke7 28. Ne4 Bxh3 29. Nc6+ Kd7 30. Nxe5+ Kc8 31. Rb2 c5 32. Rb8+ Kc7 33. Nf7 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "9"]
[White "Theodorovich, Ivan"]
[Black "O'Keefe, Jack"]
[Result "1-0"]
[ECO "A04"]
[PlyCount "55"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nd2 e6 6. Ngf3 Nge7 7. 0-0 0-0 8. c3 d6 9. a4 Rb8 10. h4 a6 11. Nh2 b5 12. axb5 axb5 13. Qc2 b4 14. Nb3 bxc3 15. bxc3 Qb6 16. Rb1 Ba6 17. Be3 Qc7 18. Rfd1 c4 19. dxc4 Bxc4 20. Nd2 Ne5 21. Rxb8 Rxb8 22. Nxc4 Nxc4 23. Bc1 Qc5 24. Bf1 d5 25. h5 Bh6 26. Ng4 Bxc1 27. Qxc1 Kh8 28. Qf4 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "6"]
[White "Theodorovich, Ivan"]
[Black "Rozsa, Bela"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "67"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. g3 Bc5 5. Bg2 d6 6. 0-0 Bg4 7. h3 Be6 8. c3 Bb6 9. Qe2 Qd7 10. Ng5 h6 11. Nxe6 Qxe6 12. Nd2 a6 13. Nc4 Ba7 14. Ne3 Ne7 15. Kh2 g6 16. Bd2 h5 17. b4 c6 18. a4 Qd7 19. Nc2 Nh7 20. b5 cxb5 21. axb5 Qxb5 22. h4 Qd7 23. Bh3 Qc7 24. f4 Nf8 25. fxe5 dxe5 26. Qf3 Rh7 27. Nb4 Nd7 28. Bg5 Nb6 29. Qf6 Ng8 30. Qf3 Qd6 31. Ra5 Ne7 32. Bf6 Nd7 33. Bxe7 Kxe7 34. Rd5 1-0

[Event "US Open-57"]
[Site "Oklahoma"]
[Date "1956.??.??"]
[Round "4"]
[White "Theodorovich, Ivan"]
[Black "Santasiere, Anthony Edward"]
[Result "1-0"]
[ECO "B10"]
[PlyCount "99"]
[EventDate "1956.07.16"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 e5 4. g3 Be6 5. Bg2 Bd6 6. Ngf3 f6 7. 0-0 Ne7 8. Ne1 Nd7 9. f4 exf4 10. gxf4 Qb6+ 11. Kh1 0-0-0 12. c3 g5 13. f5 Bf7 14. d4 Qc7 15. Qc2 h5 16. c4 g4 17. e5 Nxe5 18. c5 Nc4 19. cxd6 Nxd6 20. Nb3 h4 21. h3 gxh3 22. Bxh3 Ne4 23. Bf4 Ng3+ 24. Kg1 Qb6 25. Bxg3 Rdg8 26. Rf3 Qc7 27. Bg2 Rxg3 28. Rxg3 Qxg3 29. Qd3 Rg8 30. Qxg3 Rxg3 31. Kh2 Bh5 32. Bh3 Bg4 33. Bxg4 Rxg4 34. Ng2 Nxf5 35. Rf1 Nxd4 36. Nd2 f5 37. Ne3 Rg5 38. Rf4 Ne6 39. Rxh4 f4 40. Ng4 Kc7 41. Nf3 Rg7 42. Kg2 Nc5 43. Nfe5 Na4 44. Nd3 Kb6 45. Kf3 Re7 46. Rh2 Rf7 47. Rc2 Kb5 48. b3 Nb6 49. Rc5+ Ka6 50. Nb4# 1-0

