[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.23"]
[Round "7"]
[White "Ramme, Georg"]
[Black "Itin, Dmitry"]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "1527"]
[BlackElo "1416"]
[PlyCount "122"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Nc6 6. Nb3 Bg7 7. Bg5 0-0 8. Qd2 b6 9. e4 d6 10. Be2 Bb7 11. 0-0 Rc8 12. Bxf6 Bxf6 13. Nd5 Bg7 14. Rac1 e6 15. Nc3 Ne7 16. Nb5 d5 17. cxd5 Rxc1 18. Rxc1 a6 19. Nc3 Bxc3 20. Qxc3 exd5 21. Qc7 Ba8 22. Qxd8 Rxd8 23. Rc7 Re8 24. Bxa6 dxe4 25. Bb5 Nd5 26. Bxe8 Nxc7 27. Bd7 Bd5 28. Nc1 Ne6 29. Kf1 Kf8 30. b4 Ke7 31. Ba4 Nd4 32. Ke1 b5 33. Bd1 Bc4 34. Kd2 Ke6 35. Ne2 Nxe2 36. Bxe2 Kd5 37. Bd1 Bxa2 38. Kc3 Bc4 39. h4 f5 40. g3 h6 41. Bc2 g5 42. Bd1 f4 43. Bh5 Ke5 44. Bg6 e3 45. fxe3 fxe3 46. Bh7 e2 47. Kd2 gxh4 48. gxh4 Kf4 49. h5 Kf3 50. Ke1 Ke3 51. Bf5 Bd3 52. Bg6 Kd4 53. Kd2 Bc4 54. Bh7 e1Q+ 55. Kxe1 Kc3 56. Kd1 Kxb4 57. Kc2 Ka3 58. Kc3 Be2 59. Bg6 b4+ 60. Kc2 b3+ 61. Kd2 Bc4 0-1

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.22"]
[Round "5"]
[White "Glaschak, Joachim"]
[Black "Itin, Dmitry"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1267"]
[BlackElo "1416"]
[PlyCount "54"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. e3 g6 4. Nc3 Bg7 5. Nf3 0-0 6. Bd3 b6 7. 0-0 Bb7 8. b3 Nbd7 9. Re1 c5 10. cxd5 cxd4 11. Nxd4 Nxd5 12. Nxd5 Bxd5 13. e4 Bb7 14. Be3 Nc5 15. Bc2 Nxe4 16. f3 Nc3 17. Qd3 e5 18. Ne2 Qxd3 19. Bxd3 e4 20. fxe4 Nxe2+ 21. Bxe2 Bxa1 22. Rxa1 Bxe4 23. Rd1 Rfe8 24. Bb5 Re5 25. Bc4 b5 26. Bd4 Rd8 27. Be2 Red5 0-1

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.22"]
[Round "6"]
[White "Itin, Dmitry"]
[Black "Brannys, Peter"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1416"]
[BlackElo "1346"]
[PlyCount "65"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Bd3 c5 5. b3 Nc6 6. Nbd2 Qb6 7. Bb2 Bd7 8. c4 a5 9. 0-0 cxd4 10. Nxd4 Bc5 11. Nc2 d4 12. exd4 Nxd4 13. Nxd4 Bxd4 14. Bxd4 Qxd4 15. Nf3 Qc5 16. Re1 Bc6 17. Ne5 Rd8 18. Nxc6 Qxc6 19. Qc2 Rd4 20. Rad1 Rg4 21. Bf1 0-0 22. Qd3 Re4 23. Rxe4 Nxe4 24. g3 b6 25. Bg2 f5 26. g4 g6 27. gxf5 exf5 28. Re1 Qc5 29. Re2 Nf6 30. Bd5+ Kg7 31. Qf3 Rd8 32. Rd2 Rd6 33. Qc3 1/2-1/2

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.21"]
[Round "4"]
[White "Itin, Dmitry"]
[Black "Mesic, Reuf"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1416"]
[PlyCount "101"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. 0-0 Be7 6. b3 0-0 7. Bb2 d5 8. Nbd2 Nbd7 9. Ne5 Ne8 10. f4 f5 11. Bb5 Ndf6 12. Nc6 Bxc6 13. Bxc6 Rb8 14. Bb5 Nd6 15. Bd3 Nde4 16. Nxe4 Nxe4 17. Rc1 Qe8 18. Bxe4 dxe4 19. Qe2 c6 20. c4 c5 21. Rfd1 Rd8 22. Rc2 Bf6 23. dxc5 Bxb2 24. Rxb2 bxc5 25. Rbd2 Qe7 26. h3 g6 27. a3 a5 28. Kf1 Kf7 29. g3 h6 30. Ke1 Kf6 31. Rxd8 Rxd8 32. Qb2+ Kf7 33. Rxd8 Qxd8 34. Qd2 Qc7 35. b4 cxb4 36. axb4 axb4 37. Qxb4 Qa7 38. Qd2 Qa1+ 39. Ke2 Ke7 40. Qb4+ Kf7 41. c5 Qc1 42. Qb7+ Kf6 43. Qc8 Qc2+ 44. Ke1 Qc3+ 45. Ke2 Qd3+ 46. Kf2 Qc2+ 47. Kf1 Qc1+ 48. Kg2 Qd2+ 49. Kh1 Ke7 50. Qb7+ Kf6 51. Qc8 1/2-1/2

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.21"]
[Round "3"]
[White "Schimmelpfennig, Juergen"]
[Black "Itin, Dmitry"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1303"]
[BlackElo "1416"]
[PlyCount "58"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Bd3 e5 7. Nf3 b5 8. a3 Nbd7 9. Bg5 Be7 10. 0-0 0-0 11. b4 Bb7 12. Bxf6 Nxf6 13. Re1 Qc7 14. Qd2 Rac8 15. Nd5 Nxd5 16. exd5 Qc3 17. Qd1 f5 18. Re3 Qc7 19. Ne1 e4 20. Be2 Bf6 21. c3 Qf7 22. Rc1 Bg5 23. Rg3 Bxc1 24. Qxc1 Bxd5 25. Qh6 Qf6 26. Qd2 Bc4 27. Bxc4+ Rxc4 28. Nc2 Rfc8 29. Nd4 Qxd4 0-1

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.20"]
[Round "1"]
[White "Itin, Dmitry"]
[Black "Heiseke, Gerhard"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1416"]
[BlackElo "1162"]
[PlyCount "49"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. e3 f5 4. Ne5 Nd7 5. Qh5+ Ke7 6. Qf7+ Kd6 7. b3 Nh6 8. Ba3+ c5 9. Qh5 Nxe5 10. Bxc5+ Kc6 11. Bxf8 Qxf8 12. dxe5 Nf7 13. f4 g6 14. Qe2 a6 15. Nd2 Bd7 16. c4 Qc5 17. cxd5+ Qxd5 18. Rc1+ Kb6 19. e4 fxe4 20. Qe3+ Ka5 21. Rc5+ b5 22. Rxd5 exd5 23. a3 b4 24. Qc5+ Bb5 25. axb4# 1-0

[Event "Hannover-chA"]
[Site "Lehrte"]
[Date "2012.10.20"]
[Round "2"]
[White "Itin, Dmitry"]
[Black "Schmidt, Frederik"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1416"]
[BlackElo "858"]
[PlyCount "77"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. e3 Nc6 4. c4 Bb4+ 5. Nc3 Nge7 6. a3 Bxc3+ 7. bxc3 0-0 8. Qc2 dxc4 9. Bxc4 a6 10. a4 b6 11. 0-0 Bb7 12. Ba3 Re8 13. Bd3 Nf5 14. Bxf5 exf5 15. Qxf5 Ne7 16. Qh5 g6 17. Qh3 Bc8 18. Qh4 Nf5 19. Qxd8 Rxd8 20. c4 Nd6 21. Ne5 Bb7 22. c5 f6 23. cxd6 fxe5 24. dxe5 c5 25. Rab1 Be4 26. Rxb6 Bd3 27. Rc1 Rab8 28. Rxb8 Rxb8 29. Bxc5 Rc8 30. d7 Rb8 31. Bb6 Bb5 32. Rc8+ Rxc8 33. dxc8Q+ Kg7 34. e6 Bxa4 35. Bd4+ Kh6 36. Qf8+ Kh5 37. Qf3+ Kh6 38. Qh3+ Kg5 39. f4# 1-0

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.05"]
[Round "7"]
[White "Bielstein, Bernd"]
[Black "Itin, Dmitry"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1683"]
[BlackElo "1148"]
[PlyCount "91"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Qd2 Nbd7 10. Nd5 Bxd5 11. exd5 Nb6 12. c4 Rc8 13. Rc1 Nbd7 14. Bd3 g6 15. 0-0 b6 16. Qe2 Nc5 17. Nxc5 bxc5 18. Qd2 Rb8 19. Bc2 Bg7 20. Rb1 0-0 21. a3 a5 22. b4 axb4 23. axb4 cxb4 24. Rxb4 Nd7 25. Rfb1 Rxb4 26. Qxb4 Qc7 27. Bd3 Rb8 28. Qa4 Rxb1+ 29. Bxb1 Nc5 30. Qb5 Kf8 31. Bc2 Ke7 32. Ba4 Nxa4 33. Qxa4 f5 34. Qb5 Kf7 35. g3 Bf6 36. Qa6 Bd8 37. f4 e4 38. c5 dxc5 39. Qe6+ Kg7 40. d6 Qf7 41. Qe5+ Kf8 42. Bxc5 Kg8 43. Bd4 Kf8 44. Qh8+ Qg8 45. Qe5 Qf7 46. Qh8+ 1/2-1/2

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.04"]
[Round "6"]
[White "Itin, Dmitry"]
[Black "Drezewski, Alexander"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1148"]
[BlackElo "1903"]
[PlyCount "70"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. c4 Bg7 5. Nc3 c6 6. Bd3 0-0 7. 0-0 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. a4 Nbd7 11. cxd5 exd5 12. b4 Re8 13. Bd2 Nf8 14. Rfb1 Ne6 15. Ra3 Bf8 16. Ra2 Bd6 17. a5 Bc7 18. a6 b6 19. Rc2 Kg7 20. Re1 Qd6 21. g3 Rad8 22. Qh1 Qe7 23. Be2 Bd6 24. b5 c5 25. Nxd5 Nxd5 26. Qxd5 cxd4 27. Qg2 Bb4 28. Bf3 dxe3 29. Bc3+ Bxc3 30. Rxc3 exf2+ 31. Qxf2 Qb4 32. Ree3 Ng5 33. Qe2 Nxf3+ 34. Qxf3 Qb1+ 35. Kg2 Rd2+ 0-1

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.04"]
[Round "5"]
[White "Itin, Dmitry"]
[Black "Schneider, Waldemar"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1148"]
[BlackElo "1573"]
[PlyCount "113"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Nbd2 0-0 5. b3 c5 6. Bd3 Nc6 7. Bb2 cxd4 8. exd4 Nd5 9. 0-0 Nf4 10. Ne4 d5 11. Ng3 Bg4 12. c3 e5 13. h3 Nxd3 14. Qxd3 e4 15. Qe3 Bxf3 16. gxf3 f5 17. f4 h6 18. Kh2 Qh4 19. Ne2 Kh7 20. Qg3 Qf6 21. Rg1 Rg8 22. Ba3 Bf8 23. Bxf8 Qxf8 24. Qh4 Qd6 25. Kh1 Raf8 26. Rg3 Qa3 27. Rgg1 Qb2 28. Rge1 Qd2 29. Qg3 g5 30. Qe3 Qb2 31. Qc1 Qxc1 32. Raxc1 g4 33. h4 h5 34. a3 b5 35. c4 bxc4 36. bxc4 dxc4 37. Rxc4 Rc8 38. Rec1 Ne7 39. Rc7 Rge8 40. Rxe7+ Rxe7 41. Rxc8 Rb7 42. Kg1 Rb1+ 43. Rc1 Rb2 44. Ng3 Rb3 45. a4 Rf3 46. Nxf5 Rxf4 47. Ne3 Rf3 48. Rc3 Kg6 49. Nd5 Kf5 50. Rxf3+ exf3 51. Nc3 a6 52. d5 Ke5 53. Kh2 a5 54. Kg3 Kd6 55. Kf4 Ke7 56. Ne4 Kf7 57. Kg5 1-0

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.03"]
[Round "4"]
[White "Bischoff, Norbert"]
[Black "Itin, Dmitry"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "1687"]
[BlackElo "1148"]
[PlyCount "68"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 c6 5. cxd5 cxd5 6. Nc3 h6 7. Ne5 a6 8. Qa4+ Nbd7 9. Qb3 Nb6 10. a4 Rb8 11. f3 e6 12. a5 Nbd7 13. Qa4 Bd6 14. Bd2 0-0 15. Nxd7 Nxd7 16. g3 Nf6 17. Qd1 h5 18. Qe2 Bc7 19. b4 b5 20. Bg2 Rc8 21. 0-0 Qd6 22. f4 Ne4 23. Nxe4 dxe4 24. Qxh5 Bg6 25. Qe2 f5 26. Rac1 Kf7 27. Rc5 Bb8 28. Rfc1 Rxc5 29. Rxc5 Ba7 30. Rc2 Kg8 31. Qe1 Be8 32. Qc1 Rf7 33. Bf1 Kh7 34. Be2 g6 1/2-1/2

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.03"]
[Round "3"]
[White "Itin, Dmitry"]
[Black "Rinck, Michael"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1148"]
[BlackElo "1687"]
[PlyCount "82"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Nbd2 d5 5. b3 Nc6 6. Bd3 Be7 7. Bb2 0-0 8. 0-0 Bd7 9. Ne5 h6 10. f4 Qb6 11. c3 Rac8 12. Kh1 a6 13. g4 c4 14. Bc2 cxb3 15. axb3 Nxe5 16. fxe5 Nh7 17. Qf3 Bb5 18. Rg1 Qc7 19. Qh3 Qd8 20. Nf3 Be2 21. Rg2 Bxf3 22. Qxf3 Ng5 23. Qg3 Nh7 24. e4 Ng5 25. exd5 Qxd5 26. Qd3 Qf3 27. Rf1 Qxd3 28. Bxd3 Nh7 29. Be4 Rc7 30. Rgf2 Bh4 31. Rd2 Bg5 32. Rd3 Rd8 33. Ba3 f6 34. Bd6 Rcd7 35. Kg2 Nf8 36. Kg3 fxe5 37. Bxe5 Nh7 38. Bg2 Bf6 39. Bxf6 Nxf6 40. Re1 Re8 41. Rde3 Kf7 1/2-1/2

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.02"]
[Round "2"]
[White "Boehning, Kilian"]
[Black "Itin, Dmitry"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1738"]
[BlackElo "1148"]
[PlyCount "83"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 Nf6 8. f3 0-0 9. 0-0-0 Nbd7 10. Bh6 e5 11. Nde2 Ne8 12. Bxg7 Kxg7 13. g4 h6 14. Nd5 Nb6 15. Nec3 Nxd5 16. Nxd5 Be6 17. Bc4 Rc8 18. Bb3 Nc7 19. Nb6 Rb8 20. Qxd6 Qg5+ 21. Qd2 Qe7 22. Qd6 Qg5+ 23. Kb1 Nb5 24. Qc5 Nd4 25. Bxe6 Nxe6 26. Qa5 Rfd8 27. Nd7 Rbc8 28. Qxe5+ Qxe5 29. Nxe5 Ng5 30. h4 Ne6 31. c3 Kf6 32. Nd7+ Ke7 33. Nb6 Rc6 34. Rxd8 Nxd8 35. Nd5+ Ke6 36. Rd1 g5 37. hxg5 hxg5 38. Nb4 Rc8 39. Rd5 f6 40. Kc2 Nf7 41. Nd3 Rc4 42. Nc5+ 1-0

[Event "Niedersachsen-ch op-B"]
[Site "Verden"]
[Date "2012.01.02"]
[Round "1"]
[White "Itin, Dmitry"]
[Black "Lebiedz, Oliver"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1148"]
[BlackElo "1791"]
[PlyCount "66"]
[EventDate "2012.01.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Ne5 e6 4. e3 Nbd7 5. f4 Nxe5 6. fxe5 Ne4 7. Qg4 f6 8. Nd2 Ng5 9. Bd3 f5 10. Qf4 Be7 11. h4 Nf7 12. Nf3 Bd7 13. Bd2 Nh6 14. 0-0-0 Ng4 15. Nh2 Nxh2 16. Rxh2 c6 17. Rg1 Qc7 18. g4 g6 19. g5 0-0-0 20. h5 gxh5 21. Rxh5 Rdg8 22. Rgh1 Qd8 23. Rxh7 Rxh7 24. Rxh7 Bxg5 25. Qh2 Qe8 26. b3 Qg6 27. Rh8 Be7 28. Kb2 Kc7 29. Rxg8 Qxg8 30. c4 Qf8 31. c5 b6 32. b4 Qb8 33. Ka1 b5 1/2-1/2

