[Event "IECC T000102"]
[Site "IECC email"]
[Date "2011.03.04"]
[Round "?"]
[White "Kranz, Werner"]
[Black "Kalchev, Nikola"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "34"]
[EventDate "2011.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bb7 7. Re1 Bc5 8. c3 d6 9. d4 Bb6 10. a4 Rb8 11. axb5 axb5 12. Na3 0-0 13. Nxb5 Re8 14. d5 Na5 15. Ba4 c6 16. dxc6 Bxc6 17. Nxd6 Re6 1-0

[Event "GER MP94 email"]
[Site "GER email"]
[Date "2010.07.04"]
[Round "?"]
[White "Raessler, Arndt"]
[Black "Kalchev, Nikola"]
[Result "0-1"]
[ECO "D87"]
[PlyCount "52"]
[EventDate "2010.??.??"]
[EventType "team-tourn (corr)"]
[EventRounds "3"]
[EventCountry "GER"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. 0-0 Nc6 10. Be3 Bg4 11. f3 Na5 12. Bxf7+ Rxf7 13. fxg4 Rxf1+ 14. Kxf1 Qd6 15. Kg1 Qe6 16. Qd3 cxd4 17. cxd4 Qxg4 18. h3 Qd7 19. Rc1 b5 20. d5 Nc4 21. Nd4 Qd6 22. Bf2 Qf4 23. Rf1 Be5 24. Nf3 Bd6 25. g3 Ne5 26. Rc1 Qxc1+ 0-1

[Event "IECC T002010"]
[Site "IECC email"]
[Date "2010.04.01"]
[Round "?"]
[White "Baer, Lutz"]
[Black "Kalchev, Nikola"]
[Result "1/2-1/2"]
[ECO "D85"]
[PlyCount "68"]
[EventDate "2010.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "DESC.1"]
[BlackTeam "Home before dinner"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 Nc6 10. d5 Ne5 11. Nxe5 Bxe5 12. Qd2 e6 13. f4 Bc7 14. 0-0 exd5 15. exd5 Ba5 16. d6 b6 17. Bf3 Bf5 18. Bxa8 Bxb1 19. Bc6 Bf5 20. Re1 Qf6 21. Bb2 Rd8 22. Re8+ Rxe8 23. Bxe8 a6 24. a4 c4 25. Qd5 b5 26. axb5 axb5 27. Kh1 h6 28. Bxb5 Bxc3 29. Bxc3 Qxc3 30. h3 Qc1+ 31. Kh2 Qxf4+ 32. Kh1 Qc1+ 33. Kh2 c3 34. d7 Qf4+ 1/2-1/2

[Event "IECC T002010"]
[Site "IECC email"]
[Date "2010.04.01"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Schmitz, Josef"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "34"]
[EventDate "2010.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 d6 5. c4 Nb4 6. dxc5 Bf5 7. Qa4+ N8c6 8. Na3 Na6 9. Be3 Nxc5 10. Bxc5 dxc5 11. Nf3 g6 12. Rd1 Bd7 13. Qb5 Qb6 14. Be2 Bg7 15. Rd2 Nxe5 16. Qxb6 axb6 17. 0-0 Bc6 0-1

[Event "IECC T002010"]
[Site "IECC email"]
[Date "2010.04.01"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Tessler, Mona"]
[Result "0-1"]
[ECO "C99"]
[PlyCount "59"]
[EventDate "2010.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 a5 15. Be3 a4 16. Nbd2 Bd7 17. Rc1 Rac8 18. Nf1 Qb8 19. Ng3 Rfe8 20. Bb1 Na5 21. b3 axb3 22. axb3 b4 23. Bc2 Bd8 24. Bg5 Qa7 25. Ra1 h6 26. Bd2 Bb6 27. Bxb4 Qc7 28. Bd3 exd4 29. Nf5 Bxf5 30. exf5 0-1

[Event "IECC T002010"]
[Site "IECC email"]
[Date "2010.04.01"]
[Round "?"]
[White "Marim, Milton"]
[Black "Kalchev, Nikola"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "43"]
[EventDate "2010.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "Brazil III"]
[BlackTeam "Home before dinner"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. c3 d6 8. a4 Bg4 9. h3 Bxf3 10. Qxf3 Na5 11. Bc2 b4 12. d3 0-0 13. Nd2 Rb8 14. Rb1 b3 15. Bd1 Re8 16. Be2 Qd7 17. Qg3 Qe6 18. Re1 Rbd8 19. Bd1 Rb8 20. Bf3 c6 21. Nf1 d5 22. exd5 0-1

[Event "IECC T002010"]
[Site "IECC email"]
[Date "2010.04.01"]
[Round "?"]
[White "Pech, Jaroslav Sr"]
[Black "Kalchev, Nikola"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "42"]
[EventDate "2010.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. a4 Bb7 8. d3 0-0 9. axb5 axb5 10. Rxa8 Bxa8 11. Nc3 b4 12. Nd5 Nxd5 13. Bxd5 Nd4 14. Bc4 Qe7 15. Be3 Bb7 16. c3 Nxf3+ 17. Qxf3 Bxe3 18. Qxe3 bxc3 19. bxc3 Qa3 20. d4 Qa4 21. Bd3 d6 0-1

[Event "GER MP84 email"]
[Site "GER email"]
[Date "2009.10.20"]
[Round "?"]
[White "Wiehl, Hans"]
[Black "Kalchev, Nikola"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "37"]
[EventDate "2009.??.??"]
[EventType "team-tourn (corr)"]
[EventRounds "3"]
[EventCountry "GER"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "Wikinger"]
[BlackTeam "Chess Knights"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. c3 0-0 7. b4 Bb6 8. Nbd2 Be6 9. a4 a5 10. b5 Ne7 11. Bxe6 fxe6 12. Ng5 Qd7 13. Nc4 Bc5 14. Be3 Bxe3 15. fxe3 Ng6 16. Nf3 b6 17. d4 Nxe4 18. dxe5 dxe5 19. Qxd7 1-0

[Event "GER MP80 email"]
[Site "GER email"]
[Date "2009.09.17"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Schmidt, Roland"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "73"]
[EventDate "2009.??.??"]
[EventType "team-tourn (corr)"]
[EventRounds "3"]
[EventCountry "GER"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. exd5 Qxd5 5. Nf3 Nc6 6. Be3 cxd4 7. cxd4 Nf6 8. Nc3 Bb4 9. Qc2 Qa5 10. Bd3 Be7 11. Qe2 0-0 12. 0-0 b6 13. Bb5 Bb7 14. a3 a6 15. Bxc6 Bxc6 16. Ne5 Bb7 17. b4 Bxb4 18. axb4 Qxb4 19. Rfc1 Rac8 20. Rab1 Qd6 21. Qb2 b5 22. f3 Rfd8 23. Nd3 Qb6 24. Nc5 Bc6 25. Bf2 Nd5 26. N3e4 Be8 27. Re1 Rc7 28. Re2 b4 29. Nc3 Nxc3 30. Qxc3 a5 31. Qa1 Rcc8 32. Ra2 Ra8 33. Nd3 Rd5 34. Rxb4 axb4 35. Rxa8 Kf8 36. Be1 Rxd4 37. Bf2 1-0

[Event "IECC T002009"]
[Site "IECC email"]
[Date "2009.04.10"]
[Round "?"]
[White "Frenzel, Lothar"]
[Black "Kalchev, Nikola"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "37"]
[EventDate "2009.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "DESC.Europe"]
[BlackTeam "Home before dinner"]

1. Nf3 Nf6 2. Nc3 d5 3. d4 g6 4. Bf4 Bg7 5. Qd2 Nc6 6. 0-0-0 0-0 7. e3 Bf5 8. Bd3 Bxd3 9. Qxd3 Qd7 10. Ne5 Qe6 11. Qb5 Nxe5 12. Bxe5 b6 13. Bxc7 Ne4 14. Nxe4 Qxe4 15. Bf4 Rac8 16. c3 Qxg2 17. Rhg1 Qe4 18. h4 h5 19. Qe2 1-0

[Event "IECC T002009"]
[Site "IECC email"]
[Date "2009.04.10"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Peuraca, Ana"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "59"]
[EventDate "2009.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "Home before dinner"]
[BlackTeam "BEOGRAD-SRBIJA"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. dxc5 Qxc5 7. Na3 a6 8. Be3 Qc7 9. h3 Bh5 10. g4 Bg6 11. Bg2 Nc6 12. Nc4 Rd8 13. Qb3 b5 14. Bb6 bxc4 15. Bxc7 cxb3 16. Bxd8 Kxd8 17. axb3 a5 18. Nd2 Kc7 19. 0-0 e6 20. Nc4 Bd3 21. Rfe1 Bc5 22. Bxc6 Bxc4 23. bxc4 Kxc6 24. Rxa5 Bb6 25. Ra4 Rd8 26. b4 Rd3 27. c5 Bc7 28. c4 Bb8 29. Ra6+ Kc7 30. b5 0-1

[Event "IECC T002009"]
[Site "IECC email"]
[Date "2009.04.10"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Pluemmer, Rolf"]
[Result "0-1"]
[ECO "C07"]
[PlyCount "31"]
[EventDate "2009.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd6 7. 0-0 Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Qc7 12. Qe2 Bd6 13. c3 Bxh2+ 14. Kh1 Bd6 15. Bg5 0-0 16. Bb3 0-1

[Event "IECC T002009"]
[Site "IECC email"]
[Date "2009.04.10"]
[Round "?"]
[White "Weber, Daniel"]
[Black "Kalchev, Nikola"]
[Result "1-0"]
[ECO "C78"]
[PlyCount "63"]
[EventDate "2009.??.??"]
[EventType "match (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "HELVETIA"]
[BlackTeam "Home before dinner"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. c3 b5 7. Bc2 d5 8. a4 Bb7 9. exd5 Qxd5 10. d4 exd4 11. Re1+ Kf8 12. Bb3 Qd6 13. axb5 axb5 14. Rxa8+ Bxa8 15. Qd3 dxc3 16. Qxb5 Ng4 17. Kf1 Nxf2 18. Nxc3 Qd3+ 19. Re2 Qxb5 20. Nxb5 Nd3 21. Nxc7 Be7 22. Bg5 f6 23. Be3 Bb7 24. Rd2 Ncb4 25. Ne6+ Ke8 26. Nxg7+ Kd7 27. Bc4 Kc7 28. Rxd3 Nxd3 29. Bxd3 Bd5 30. Bd4 Rd8 31. Bxh7 Bxf3 32. Ne6+ 1-0

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.20"]
[Round "?"]
[White "Janocha, Alfred"]
[Black "Kalchev, Nikola"]
[Result "0-1"]
[ECO "C49"]
[PlyCount "12"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. Bc4 0-0 6. a3 Bxc3 0-1

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.20"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Malewicz, Frank"]
[Result "1/2-1/2"]
[ECO "C87"]
[PlyCount "52"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 d6 7. c3 0-0 8. d4 Bd7 9. Nbd2 exd4 10. cxd4 Nb4 11. Bxd7 Qxd7 12. Nf1 d5 13. Ne5 Qe6 14. a3 Nc6 15. Nxc6 Qxc6 16. e5 Ne4 17. f3 Ng5 18. Bxg5 Bxg5 19. Ne3 Qd7 20. Qb3 c6 21. Re2 f5 22. Nc2 a5 23. Rf1 a4 24. Qc3 f4 25. Nb4 Be7 26. Nd3 Qe6 1/2-1/2

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.20"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Pech, Jaroslav Sr"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "47"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 Nc6 6. Bc4 Nb6 7. Bb3 d6 8. exd6 Qxd6 9. cxd4 Be6 10. 0-0 Bxb3 11. Qxb3 e6 12. Nc3 Be7 13. Rd1 Rd8 14. Be3 0-0 15. d5 Nxd5 16. Qxb7 Rb8 17. Qa6 Rxb2 18. Rac1 Ncb4 19. Qa3 Rc2 20. Rxc2 Nxc2 21. Qxd6 Bxd6 22. Nxd5 exd5 23. Bxa7 Nb4 24. a3 1/2-1/2

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.20"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Vetter, Udo"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "33"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Nc6 6. Be3 Ng4 7. Nbd2 cxd4 8. Bc4 Qd6 9. Nxd4 Nxe3 10. fxe3 Ne5 11. Qb3 Nxc4 12. Nxc4 Qc7 13. Nb5 Qc5 14. 0-0-0 e6 15. Rhf1 Be7 16. Nbd6+ Bxd6 17. Nxd6+ 1-0

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.20"]
[Round "?"]
[White "Lehmann, Hartmut"]
[Black "Kalchev, Nikola"]
[Result "0-1"]
[ECO "D80"]
[PlyCount "23"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e4 dxe4 5. Be3 Bg7 6. Qd2 c5 7. 0-0-0 cxd4 8. Bxd4 0-0 9. Be3 Qa5 10. f3 Nc6 11. fxe4 Rd8 12. Qxd8+ 0-1

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.20"]
[Round "?"]
[White "Von Rosenberg, Clemens"]
[Black "Kalchev, Nikola"]
[Result "0-1"]
[ECO "D87"]
[PlyCount "70"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. 0-0 Nc6 10. Be3 e6 11. Bb5 Bd7 12. d5 exd5 13. Qxd5 a6 14. Ba4 b5 15. Bc2 Rc8 16. Rfd1 Be6 17. Qxc5 Qa5 18. Bb3 Nd4 19. Qxf8+ Rxf8 20. cxd4 Qa3 21. Bxe6 fxe6 22. Rd2 Rc8 23. Rb1 b4 24. h3 a5 25. d5 exd5 26. exd5 a4 27. d6 b3 28. d7 Rd8 29. axb3 axb3 30. Rd3 Qa2 31. Rbxb3 Qxe2 32. Bb6 Qe1+ 33. Kh2 Be5+ 34. g3 Bf6 35. Kg2 Qe4+ 0-1

[Event "GER email"]
[Site "GER email"]
[Date "2009.02.13"]
[Round "?"]
[White "Kalchev, Nikola"]
[Black "Auburger, Kirstin"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "54"]
[EventDate "2009.??.??"]
[EventType "swiss (corr)"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bf5 7. 0-0 e6 8. Re1 Nbd7 9. Bf4 Bg6 10. Bd3 Be7 11. a3 0-0 12. Bg3 Rfe8 13. Ne5 Nxe5 14. Bxe5 Qb6 15. b4 Bxd3 16. Qxd3 a5 17. b5 Nd5 18. Nxd5 cxd5 19. c4 dxc4 20. Qxc4 Rac8 21. Qb3 Bf8 22. Rac1 Rxc1 23. Rxc1 f6 24. Bc7 Qxd4 25. Bxa5 Qd5 26. Qxd5 exd5 27. Bb4 Bxb4 1/2-1/2

