| ECO A05 in 1964 play it! mnatsakanian edu defeats white's stefanov josif in 84 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. c4 Be7 6. d4 O-O 7. Nc3 d5 8. b3 Nbd7 9. Bb2 Rc8 10. cxd5 exd5 11. Ne5 a6 12. Rc1 Bd6 13. Na4 Qe7 14. Nc4 dxc4 15. Bxb7 Rb8 16. Bxa6 b5 17. Bxb5 Rxb5 18. bxc4 Rh5 19. e3 Qe6 20. Qf3 Ra5 21. d5 Qe4 22. Qxe4 Nxe4 23. Nc3 Nd2 24. Rfd1 Nxc4 25. Ba1 Ncb6 26. e4 f5 27. exf5 Rxf5 28. Ne4 Rfxd5 29. Bd4 Bc5 30. Bxc5 Rxd1+ 31. Rxd1 Nxc5 32. Ng5 Nbd7 33. Re1 h6 34. Re8+ Nf8 35. Nf3 Rxa2 36. Rc8 Ne4 37. Rxc7 Nxf2 38. h4 Ng4 39. Rc4 Rg2+ 40. Kxg2 Ne3+ 41. Kh3 Nxc4 42. h5 Kf7 |
| ECO A09 in 1993 play it! mnatsakanian edu defeats white's kazek krzysztof in 122 moves | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. d4 Nbd7 6. Qc2 Bd6 7. b3 O-O 8. Be2 dxc4 9. bxc4 e5 10. O-O Re8 11. Rd1 Qe7 12. a4 a5 13. c5 Bc7 14. Ba3 exd4 15. exd4 Nf8 16. Re1 Qd8 17. Qb3 Rb8 18. Rad1 Be6 19. Qc2 Nd5 20. Ne4 Bf5 21. Bd3 Bg4 22. Neg5 Rxe1+ 23. Rxe1 g6 24. h3 Bxf3 25. Nxf3 Ne6 26. Bxg6 hxg6 27. Rxe6 Nf4 28. Re4 Qd5 29. Bc1 Ne6 30. h4 Rd8 31. Bg5 Rd7 32. Qe2 Kg7 33. g3 b5 34. cxb6 Bxb6 35. Bf4 Re7 36. Be5+ f6 37. Bf4 Kf7 38. Kh2 Rd7 39. Bh6 Bxd4 40. Nxd4 Nxd4 41. Qg4 Ne6 42. Re3 c5 43. Rf3 c4 44. Bc1 Rb7 45. Rc3 Rb4 46. Qe2 Nd4 47. Qe3 Rb3 48. Rxb3 cxb3 49. Qh6 Nf3+ 50. Kh3 Ne5 51. Kh2 Nf3+ 52. Kh3 Ne5 53. Qh7+ Ke8 54. Qh8+ Kd7 55. Qg7+ Qf7 56. Qxf7+ Nxf7 57. g4 Ne5 58. h5 gxh5 59. gxh5 Ke6 60. Bb2 Kf7 61. Bc3 Kg7 |
| ECO A05 in 1978 play it! mnatsakanian edu defeats white's kalashian loris in 128 moves | 1. Nf3 Nf6 2. d4 g6 3. Nbd2 d5 4. c4 c6 5. g3 Bg7 6. Bg2 O-O 7. O-O Ne4 8. e3 Nxd2 9. Nxd2 Be6 10. b3 c5 11. Bb2 Nc6 12. cxd5 Bxd5 13. Nf3 Qa5 14. Ne5 Bxg2 15. Kxg2 Nxe5 16. dxe5 Rad8 17. Qc1 e6 18. e4 Rd3 19. Rd1 Rfd8 20. Rxd3 Rxd3 21. Qc4 Qd2 22. Re1 h6 23. Kf1 b6 24. Bc1 Qc3 25. Qa4 Qxe5 26. Qe8+ Bf8 27. Bxh6 Qd6 28. Qa8 Qd8 29. Qxd8 Rxd8 30. Bxf8 Kxf8 31. Ke2 Rd4 32. Ke3 a5 33. Rc1 e5 34. h4 f6 35. g4 Kg7 36. f3 Kh6 37. a3 a4 38. bxa4 Rxa4 39. Rc3 c4 40. f4 Kg7 41. f5 b5 42. Kf3 Ra7 43. Ke3 Rd7 44. a4 bxa4 45. Rxc4 Ra7 46. Rc2 a3 47. Ra2 Ra4 48. Kf3 Kh6 49. Kg3 Rxe4 50. g5+ Kg7 51. gxf6+ Kxf6 52. fxg6 Re3+ 53. Kg4 Kxg6 54. h5+ Kg7 55. Rc2 Re4+ 56. Kg5 Rf4 57. h6+ Kg8 58. Kg6 Rg4+ 59. Kf5 Ra4 60. Kg5 a2 61. Rc8+ Kf7 62. h7 a1=Q 63. h8=Q Qg1+ 64. Kf5 Rf4+ |
| ECO A06 in 1979 play it! mnatsakanian edu defeats white's cvetkovic srdjan in 67 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. f3 Bb4 8. Nxc4 Nd5 9. Qd2 c5 10. e4 cxd4 11. Qxd4 O-O 12. exd5 Nc6 13. Qf4 exd5 14. Qxf5 dxc4 15. Kf2 Re8 16. Be3 Rxe3 17. Rd1 Qb6 18. Nd5 Re2+ 19. Kxe2 Re8+ 20. Qe4 Rxe4+ 21. fxe4 Qc5 22. Kf3 h5 23. Be2 Nd4+ 24. Rxd4 Qxd4 25. Nxb4 Qf6+ 26. Kg3 Qd6+ 27. Kh3 Qxb4 28. Bxh5 Qxb2 29. Rf1 g6 30. Bg4 c3 31. e5 c2 32. e6 f5 33. e7 Qh8+ 34. Kg3 |
| ECO A05 in 1976 play it! mnatsakanian edu defeats white's petrosian arshak in 113 moves | 1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 b6 6. Bg2 Bb7 7. O-O c5 8. Nc3 d6 9. d4 e6 10. Qd2 Qe7 11. Rad1 Rd8 12. d5 e5 13. Ne1 a6 14. a4 e4 15. Nc2 Re8 16. f4 Bc8 17. Ne3 h5 18. h3 Bf5 19. Ra1 Nbd7 20. Ncd1 Nf8 21. Nf2 N8h7 22. g4 hxg4 23. hxg4 Bd7 24. g5 Nh5 25. Bxg7 Nxg7 26. Qc3 f5 27. gxf6 Nxf6 28. Bh3 Ngh5 29. Bxd7 Qxd7 30. Kh2 Re7 31. Rg1 Nxf4 32. Rxg6+ Nxg6 33. Qxf6 Rf8 34. Nfg4 Rh7+ 35. Kg1 Rg7 36. Rf1 Nf4 37. Qh4 Qf7 38. Kh2 Rh7 39. Nh6+ Kg7 40. Nxf7 Rxh4+ 41. Kg3 Rxf7 42. Kxh4 Ng2+ 43. Nxg2 Rxf1 44. Ne3 Rg1 45. Nf5+ Kf6 46. Nxd6 Ke5 47. Nf7+ Kf4 48. Kh3 Rg3+ 49. Kh2 Re3 50. d6 Rxe2+ 51. Kg1 Rd2 52. Kf1 a5 53. Ke1 Rd3 54. Ke2 Kf5 55. Nh6+ Kg6 56. Ng4 Rxd6 57. Ke3 |
| ECO A16 in 1980 play it! mnatsakanian edu defeats white's dobosz henryk in 64 moves | 1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4. Bg2 O-O 5. e4 Bxc3 6. dxc3 d6 7. Qe2 Nbd7 8. Nf3 Nc5 9. Nd2 a5 10. Nf1 h6 11. f3 c6 12. Ne3 a4 13. O-O Qb6 14. Kh1 Be6 15. Rd1 Qc7 16. Bd2 Rfe8 17. Be1 Rad8 18. Bf2 b6 19. Qc2 d5 20. cxd5 cxd5 21. exd5 Nxd5 22. Nxd5 Bxd5 23. c4 Bc6 24. b4 axb3 25. axb3 Qb7 26. Rxd8 Rxd8 27. Rd1 Re8 28. Qc3 e4 29. fxe4 Nxe4 30. Qc2 Nc3 31. Rg1 Re2 32. Qf5 Ne4 |
| ECO A22 in 1977 play it! mnatsakanian edu defeats white's donchenko anatol in 78 moves | 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Bd3 h6 8. Nxf6+ Qxf6 9. O-O Bf8 10. Bh7+ Kh8 11. Be4 Nb4 12. Qb1 c6 13. d4 exd4 14. Nxd4 d5 15. cxd5 cxd5 16. Bf3 Bc5 17. a3 Bxd4 18. axb4 Be5 19. Qd3 Rd8 20. Ra5 Bf5 21. Qe2 Be4 22. h3 Bc7 23. Ra4 b5 24. Ra3 Qd6 25. g3 Qxb4 26. b3 Be5 27. Bxe4 dxe4 28. Qh5 Qe7 29. Ra6 b4 30. Ra2 Kg8 31. Bd2 Rab8 32. Rc1 Rd3 33. Bxb4 Rxb4 34. Rxa7 Qe6 35. Rc5 Bf6 36. Rcc7 Rbxb3 37. Rxf7 Rb1+ 38. Kg2 Rdd1 39. Rxf6 Rg1+ |
| ECO A15 in 1982 play it! mnatsakanian edu defeats white's grigorian karen in 82 moves | 1. c4 Nf6 2. Nf3 c6 3. g3 d5 4. Qc2 Bg4 5. Ne5 Bh5 6. Bg2 d4 7. Nf3 e6 8. O-O Bc5 9. d3 O-O 10. Bg5 h6 11. Bxf6 Qxf6 12. Nbd2 Qe7 13. b4 Bxb4 14. Nxd4 Rd8 15. N2b3 a5 16. Nf3 e5 17. Qb2 Ba3 18. Qc3 Nd7 19. h3 f5 20. Rab1 Bb4 21. Qc2 Rf8 22. Nbd2 Rad8 23. a3 Bxa3 24. Rxb7 Bb4 25. Nb3 Rb8 26. Rxd7 Qxd7 27. Nxe5 Qe6 28. f4 Be8 29. Ra1 Ra8 30. Kh2 Bd6 31. Nd4 Qf6 32. Ndf3 c5 33. d4 a4 34. Rb1 a3 35. Qa2 Qd8 36. Rb7 Qa5 37. Nh4 Rb8 38. Rxb8 Bxb8 39. Nhg6 Rf6 40. Ne7+ Kh8 41. N7c6 Bxc6 |
| ECO A25 in 1991 play it! mnatsakanian edu defeats white's farago sandor in 72 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nge7 7. O-O O-O 8. d3 Bg4 9. h3 Be6 10. Nd5 Qd7 11. Kh2 Nd8 12. d4 c6 13. Nxe7+ Qxe7 14. d5 cxd5 15. cxd5 Bd7 16. Bd2 Bb5 17. Bc3 f5 18. Re1 Nf7 19. f4 Rac8 20. Qd2 Rfe8 21. Ng1 e4 22. Bxg7 Kxg7 23. Rac1 h5 24. h4 Nh6 25. Nh3 Ng4+ 26. Kg1 Nf6 27. Bf1 Bxf1 28. Rxf1 Qf7 29. Rfd1 Rxc1 30. Qxc1 Qd7 31. Ng5 Rc8 32. Qd2 Qb5 33. b3 Qb6 34. Kg2 Ng4 35. Qb2+ Kg8 36. Ne6 Rc2+ |
| ECO A20 in 1986 play it! mnatsakanian edu defeats white's spiridonov nikol in 102 moves | 1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. e3 Be6 7. Nge2 Qd7 8. O-O h5 9. h4 Nge7 10. Nd5 O-O 11. Nxe7+ Qxe7 12. Nc3 Qd7 13. Qb3 Rab8 14. Bd2 b5 15. Nd5 Nd8 16. e4 c6 17. Ne3 f5 18. exf5 gxf5 19. Bf3 Rb7 20. Qc2 f4 21. Ng2 bxc4 22. dxc4 Bf5 23. Qd1 Rxb2 24. Bxh5 Ne6 25. Bc3 Rc2 26. Rc1 Rxa2 27. Re1 Nc5 28. Re2 Rxe2 29. Qxe2 Bd3 30. Qd2 fxg3 31. fxg3 Be4 32. Qd1 Qe6 33. Bd2 Bd3 34. Bg4 Bf5 35. Ne3 Bxg4 36. Qxg4 Qxg4 37. Nxg4 Nb3 38. Rd1 d5 39. Bb4 c5 40. Ba3 dxc4 41. Bb2 Nd4 42. Kg2 Rb8 43. Ba1 Rb3 44. Rc1 c3 45. Nf2 Ra3 46. Bxc3 Ne2 47. Bb2 Rxg3+ 48. Kh2 Rf3 49. Kg2 Rxf2+ 50. Kxf2 Nxc1 51. Bxc1 e4 |
| ECO B41 in 1964 play it! mnatsakanian edu defeats white's valvo michael jo in 60 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. Be3 Nc6 8. Be2 d5 9. exd5 exd5 10. Bb5 Bd7 11. Qe2 Be7 12. Rg1 a6 13. Ba4 Ne5 14. Bxh6 Rxh6 15. Qxe5 Bxa4 16. g5 Nd7 17. gxh6 Nxe5 18. hxg7 Kd7 19. O-O-O Bc6 20. Nf5 Ke6 21. Nd4+ Kf6 22. f4 Ng6 23. f5 Ne5 24. Rg3 Bc5 25. Nb3 Bf2 26. Ne4+ dxe4 27. Rxd8 Rxd8 28. g8=N+ Kxf5 29. Ne7+ Kf4 30. Nxc6 bxc6 |
| ECO B21 in 1986 play it! mnatsakanian edu defeats white's hodgson in 82 moves | 1. e4 c5 2. f4 d5 3. Nc3 dxe4 4. Nxe4 e6 5. Nf3 Nc6 6. g3 Nf6 7. Nf2 Bd6 8. Bg2 e5 9. fxe5 Nxe5 10. O-O O-O 11. d3 Neg4 12. Ng5 Qc7 13. Nfe4 Be5 14. h3 h6 15. hxg4 hxg5 16. Bxg5 Nxg4 17. Bh3 Ne3 18. Bxe3 Bxh3 19. Qh5 Bxf1 20. Ng5 Bxd3 21. cxd3 Rfe8 22. Re1 f6 23. Qh7+ Kf8 24. Qh8+ Ke7 25. Qxg7+ Kd6 26. Qg6 Rg8 27. Nf7+ Ke7 28. Qh7 Ke6 29. d4 Qxf7 30. Qh3+ Kd6 31. dxe5+ fxe5 32. b4 Kc7 33. Rf1 Qd7 34. Qh4 Rae8 35. Bf2 Qg4 36. Qh6 c4 37. b5 Qe6 38. Qe3 b6 39. a4 Qd5 40. a5 Rh8 41. axb6+ Kb7 |
| ECO B40 in 1964 play it! mnatsakanian edu defeats white's kristensen leif in 84 moves | 1. e4 c5 2. Nf3 e6 3. Qe2 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nge7 7. d3 O-O 8. Re1 h6 9. Nbd2 e5 10. Nf1 d6 11. Ne3 Be6 12. c4 f5 13. exf5 gxf5 14. Nh4 Nd4 15. Qd1 f4 16. Nd5 Nxd5 17. cxd5 Bd7 18. Be4 Qf6 19. Ng6 Rf7 20. g4 h5 21. g5 Qxg5+ 22. Kh1 Bg4 23. Rg1 Bxd1 24. Rxg5 Bf3+ 25. Bxf3 Nxf3 26. Rxh5 Bf6 27. Kg2 Ne1+ 28. Kf1 Nxd3 29. Ke2 Rh7 30. Rf5 Kg7 31. Kxd3 Kxg6 32. Ke4 Rh4 33. Bxf4 Rxf4+ 34. Rxf4 exf4 35. Rg1+ Kf7 36. Kxf4 Bxb2 37. Rb1 Be5+ 38. Kf5 b6 39. f4 Bf6 40. a4 c4 41. a5 Rb8 42. axb6 axb6 |
| ECO B92 in 1959 play it! mnatsakanian edu defeats white's govbinder mikhai in 64 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. O-O Qc7 9. Be3 Nbd7 10. f3 Be7 11. Rc1 O-O 12. Nd5 Bxd5 13. exd5 b5 14. c4 b4 15. f4 Nc5 16. Qe1 Nfe4 17. f5 Nxb3 18. axb3 Bf6 19. Rf3 Nc5 20. Qd1 e4 21. Rh3 Bxb2 22. Rb1 Bf6 23. Bf1 g6 24. Qg4 Qe7 25. Kh1 Rfe8 26. Be2 a5 27. Rf1 a4 28. Qf4 Nd7 29. fxg6 fxg6 30. Bg4 Rf8 31. Be6+ Kh8 32. Bxd7 Bg7 |
| ECO B20 in 1963 play it! mnatsakanian edu defeats white's kirillov vladimi in 98 moves | 1. e4 c5 2. Ne2 Nf6 3. Nbc3 Nc6 4. d4 cxd4 5. Nxd4 d6 6. Be2 g6 7. Be3 Bg7 8. Nb3 O-O 9. f4 a5 10. a4 Be6 11. O-O Rc8 12. Bf3 Nb4 13. Rf2 Bxb3 14. cxb3 Nd7 15. e5 Nc5 16. Rd2 Qe8 17. exd6 exd6 18. Bf2 Qe7 19. Rc1 Rfd8 20. Bd5 Bxc3 21. bxc3 Nxd5 22. Rxd5 Ne4 23. Bd4 Nxc3 24. Rxc3 Rxc3 25. Bxc3 Qe3+ 26. Kf1 Qxc3 27. Rxd6 Rxd6 28. Qxd6 Qxb3 29. Qb8+ Kg7 30. Qe5+ f6 31. Qe7+ Qf7 32. Qc5 b6 33. Qd4 Qe6 34. Kf2 Qc6 35. Qd8 Kf7 36. Qh8 Qc2+ 37. Kf3 Qd3+ 38. Kf2 h5 39. Qh7+ Ke6 40. Qg8+ Kf5 41. g3 Qc2+ 42. Kg1 Kg4 43. Qe6+ Kf3 44. Qd5+ Qe4 45. Qd1+ Qe2 46. Qd5+ Kg4 47. Qd7+ f5 48. Qd8 h4 49. h3+ Kxg3 |
| ECO B30 in 1978 play it! mnatsakanian edu defeats white's eolian levon s in 40 moves | 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Qd3 a6 8. O-O-O Bd7 9. f4 Be7 10. Nb3 b5 11. Bxf6 gxf6 12. a3 Qb6 13. Be2 h5 14. Qh3 b4 15. axb4 Qxb4 16. Bxh5 a5 17. f5 a4 18. Nd2 Rb8 19. b3 Qa3+ 20. Kb1 axb3 |
| ECO B24 in 1965 play it! mnatsakanian edu defeats white's tompa janos in 59 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2 Qa5+ 8. c3 Nc6 9. f4 Nge7 10. Nf3 d5 11. O-O O-O 12. a3 Rd8 13. b4 Qc7 14. Bxc5 dxe4 15. Nfd4 exd3 16. Qxd3 Nxd4 17. Nxd4 Nf5 18. Rfd1 Nxd4 19. Bxd4 Bxd4+ 20. cxd4 Bd7 21. Rac1 Qb6 22. Rc5 Ba4 23. Rdc1 Rab8 24. Kh1 Rd7 25. Rc8+ Rxc8 26. Rxc8+ Kg7 27. Rc5 Qd6 28. Qc3 f6 29. h3 b6 30. Rc4 |
| ECO B29 in 1984 play it! mnatsakanian edu defeats white's kupreichik vikto in 88 moves | 1. e4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 d5 5. exd5 Nxd5 6. Bb5 Nxc3 7. bxc3 e6 8. O-O Bd7 9. Be3 Be7 10. dxc5 O-O 11. Rb1 Qc7 12. Ng5 Rad8 13. Bd3 h6 14. Ne4 Bc8 15. Nd6 Bxd6 16. cxd6 Qxd6 17. Rb5 Rfe8 18. Rh5 e5 19. Qf3 Qe6 20. Rh4 Ne7 21. Bxa7 Ng6 22. Rb4 Nf4 23. Bb5 Re7 24. Be3 Nd5 25. Rd1 Kh7 26. Rc4 Bd7 27. Qe4+ f5 28. Qxd5 Bxb5 29. Qxd8 Bxc4 30. a4 f4 31. Bc5 Re8 32. Qd7 Qg6 33. Qxb7 Qxc2 34. Re1 Qxa4 35. Qe4+ Kg8 36. Bd6 Qb5 37. Bxe5 f3 38. gxf3 Bd5 39. Qg4 Qb4 40. Qg6 Re6 41. Qf5 Qe7 42. Re3 Qe8 43. Kg2 Qc6 44. Rd3 Rxe5 |
| ECO B29 in 1979 play it! mnatsakanian edu defeats white's franzen jozef in 44 moves | 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Ne4 Nc6 6. c4 Nb6 7. b3 d5 8. exd6 f5 9. Nxc5 e5 10. d4 Bxd6 11. Nd3 e4 12. Nfe5 Qf6 13. Nxc6 exd3 14. Bxd3 bxc6 15. c5 Bxc5 16. dxc5 Qxa1 17. Qh5+ Kf8 18. O-O Nd5 19. Qh4 Be6 20. Bf4 Qf6 21. Bd6+ Kf7 22. Qa4 Rhe8 |
| ECO B29 in 1986 play it! mnatsakanian edu defeats white's grigorov jordan in 80 moves | 1. e4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 g6 8. O-O Bg7 9. a4 O-O 10. Ba3 c4 11. Qe2 Be6 12. Rfc1 Rc8 13. Rab1 b6 14. Ng5 Bd5 15. Bxd5 Qxd5 16. Rb5 Qd7 17. d4 cxd3 18. cxd3 Bxc3 19. Rxc3 Nd4 20. Qxe7 Qxe7 21. Bxe7 Ne2+ 22. Kg2 Nxc3 23. Rb3 Rfe8 24. Bf6 Nd5 25. Bd4 Red8 26. Nf3 f6 27. a5 Rb8 28. axb6 axb6 29. Bb2 Ra8 30. Nd4 Ra4 31. Nc2 Rc8 32. Ne3 Rb4 33. Rxb4 Nxb4 34. Bxf6 Nxd3 35. Nd5 Rc2 36. Bd4 b5 37. Kf3 Kf7 38. h4 Ke6 39. Ke3 Kxd5 40. Kxd3 Rc4 |