[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.1"]
[White "Metev, Martin"]
[Black "Kostov, Nikolay"]
[Result "1-0"]
[ECO "C66"]
[WhiteElo "2062"]
[BlackElo "1709"]
[PlyCount "53"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Be7 5. Re1 d6 6. Bxc6+ bxc6 7. d4 exd4 8.
Nxd4 (8. Qxd4 O-O 9. Nc3 c5 10. Qd3 Be6 11. Nd5 Nxd5 12. exd5 Bd7 13. Bd2 Rb8
14. b3 Re8 15. c4 Qc8 16. Re2 Bf5 17. Qe3 Qd7 18. Rae1 Kf8 19. Bc3 c6 20. dxc6
Qxc6 21. Qf4 Qd7 22. h3 Bg6 {
Putz,G (1688)-Hamberger,R (1807) Germany 2009 0-1 (42)}) 8... c5 $146 (8... Bd7
9. c4 O-O 10. Nc3 Re8 11. h3 Qb8 12. b3 d5 13. exd5 cxd5 14. cxd5 Bb4 15. Rxe8+
Qxe8 16. Nde2 Bd6 17. Qd3 h6 18. Be3 a5 19. Bd4 Be5 20. Qe3 Bxd4 21. Qxe8+ Rxe8
22. Nxd4 g5 23. Rd1 {
Chandler,M (2517)-Parker,J (2545) West Bromwich 2003 1-0 (39)}) (8... Bd7 9. c4
$14) 9. Nf3 (9. Nc6 Qd7 10. Nxe7 Qxe7 $16) 9... Bg4 (9... O-O 10. Nc3 $11) 10.
h3 $14 Bxf3 11. Qxf3 Nd7 12. Nc3 Ne5 13. Qe2 c6 (13... O-O 14. Nd5 $14) 14. b3
O-O 15. Bb2 Re8 16. Rad1 Rb8 17. Na4 Nd7 18. Qg4 Bf6 $2 (18... f6 $142 $16) 19.
Rxd6 $18 Qa5 20. Qd1 (20. Re3 $5 Bxb2 21. Rxd7 Bf6 $18) 20... Bxb2 (20... Rbd8
21. Re2 Bxb2 22. Nxb2 $18) 21. Nxb2 $18 (21. Rxd7 $6 Bd4 $16) 21... Nf6 22. e5
Rbd8 $4 (22... Nd5 $18) 23. Nc4 Qc7 (23... Rxd6 24. Nxd6 c4 25. Nxe8 Nxe8 $18)
24. exf6 Rxe1+ 25. Qxe1 gxf6 26. Rxd8+ Qxd8 27. Qe4 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.2"]
[White "Babatov, Martin"]
[Black "Krasteva, Beloslava"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "1625"]
[BlackElo "1986"]
[PlyCount "111"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. c4 e6 3. Bf4 Nf6 4. e3 c5 5. dxc5 Bxc5 6. Nf3 O-O 7. Nc3 Nc6 8.
cxd5 exd5 $146 (8... Nxd5 9. Nxd5 exd5 10. Bd3 Bb4+ 11. Nd2 Re8 12. O-O Qf6 13.
a3 Bxd2 14. Qxd2 a6 15. Rac1 Bf5 16. Bxf5 Qxf5 17. Rfd1 Rad8 18. Bc7 Rd7 19.
Bb6 h6 20. Bd4 Re6 21. Bc3 Rg6 22. Qd3 Qg5 23. Qf1 {
Mladenov,I (2177)-Vachev,V (2231) Velingrad 2004 1-0 (46)}) 9. Be2 Be6 10. O-O
a6 11. a3 Rc8 (11... d4 12. exd4 Nxd4 13. Nxd4 Bxd4 14. Bf3 $11) 12. b4 (12.
Qc2 Qe7 $11) 12... Ba7 $11 13. Rc1 d4 14. exd4 Nxd4 15. Nxd4 Qxd4 (15... Bxd4
16. Na4 $11) 16. Qxd4 $11 Bxd4 17. Na4 Ne4 18. Bf3 f5 19. Be3 Bxe3 20. fxe3 Nd2
$2 (20... Rxc1 $142 $5 21. Rxc1 Bd5 $11) 21. Bxb7 $16 Nxf1 22. Bxc8 (22. Rxf1
Rc2 23. Nc5 Bc4 $15) 22... Rxc8 (22... Bxc8 23. Rxf1 Rd8 24. Rc1 $16) 23. Rxc8+
(23. Rxf1 $6 Rc2 $16) 23... Bxc8 24. Kxf1 Be6 25. h4 (25. Ke2 Bc4+ 26. Kd2 Kf7
$16) 25... Kf7 26. Nc5 Bc4+ 27. Kf2 Kf6 28. Nd7+ Ke7 29. Nb6 Be6 30. Kf3 h6 (
30... Kd6 $142 $5 31. Na4 Ke5 $16) 31. Kf4 $18 Kd6 32. Na4 Bc8 $2 (32... g6 33.
Nc3 $16) 33. g3 (33. h5 Bb7 34. g3 Bc8 $18) 33... Ke6 $2 (33... g6 34. Nc3 $16)
34. e4 $4 (34. h5 $142 $18) 34... fxe4 $16 35. Kxe4 Kd6 36. Nc3 Bd7 37. Kf4 Bc8
38. h5 Ke6 (38... Bd7 39. g4 $16) 39. g4 (39. a4 Bd7 40. Ne4 Be8 41. Nc5+ Kf6
$18) 39... Kd6 40. g5 Ke6 41. gxh6 gxh6 42. a4 (42. Ne4 $5 $16) 42... Kd6 $11
43. Ne4+ Ke6 (43... Kc7 44. Nf6 a5 45. bxa5 $11) 44. b5 (44. a5 Ke7 45. Ke5 $18
) 44... axb5 $11 45. axb5 Kd5 46. Nf6+ Kc5 47. Ng8 Kxb5 $4 (47... Bd7 $142 $11)
48. Nxh6 $18 Be6 49. Ke5 Bb3 50. Ng4 (50. Nf5 Bg8 $18) 50... Kc6 51. Kf6 Kd6
52. h6 Bc2 53. Ne5 Bh7 54. Kg7 Kxe5 55. Kxh7 Kf6 56. Kg8 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.3"]
[White "Andreev, Dobrotich"]
[Black "Georgiev, Nikolay Zh."]
[Result "1-0"]
[ECO "C64"]
[WhiteElo "1985"]
[BlackElo "1623"]
[PlyCount "71"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8.
Bxb4 Nxb4 9. O-O O-O 10. Re1 (10. a3 Nd5 11. Re1 Nef6 (11... Ndf6 12. d5 b6 13.
Bd3 Re8 14. Nc3 Nc5 15. Rxe8+ Qxe8 16. Bc2 d6 17. b4 Ncd7 18. Nb5 Qd8 19. Nfd4
Bb7 20. Nc6 Bxc6 21. dxc6 Ne5 22. Nd4 a6 23. Bb3 b5 24. Rc1 Qb8 25. Nf3 Qe8 26.
Nd4 {Shih,L-Kakuk,T (1622) Khanty-Mansiysk 2016 1/2}) 12. Nc3 Nxc3 13. bxc3 c6
14. Bd3 d6 15. h3 Qa5 16. Qc2 Qh5 17. Nd2 d5 18. Re5 Qh6 19. Rae1 Bd7 20. Nf3
Rfe8 21. Qb2 b6 22. Qb4 Rxe5 23. dxe5 c5 24. Qb3 c4 {
Fuentealba,J (2214)-Larrain Cadaiz,E (2292) Santiago de Chile 2007 1/2 (43)})
10... Ng5 $146 (10... d5 11. a3 Nc6 12. Bxc6 bxc6 13. Nbd2 Bf5 14. Rc1 Nxd2 15.
Qxd2 Qd6 16. Rc5 f6 17. Re3 Rfb8 18. g3 Rb6 19. Nh4 Bd7 20. Ng2 Rab8 21. b4 Rb5
22. Nf4 Kf7 23. Qc2 Kg8 24. Qe2 a5 25. Rxb5 {
Arita,K-Beyen,R (2265) Nice 1974 1-0 (41)}) (10... Nf6 11. Nc3 b6 12. a3 Nbd5
13. Nxd5 Nxd5 14. Bc4 Bb7 15. Re5 Nf6 16. Qd3 d6 17. Re2 a5 18. Rae1 d5 19. Ba2
Ba6 20. Qd2 Bxe2 21. Rxe2 Re8 22. Ne5 Qd6 23. Qc2 Re6 24. Bb1 g6 25. Re3 {
Lozano Alarcon,A (1791)-Mejia Fernandez,J (1734) Santa Eulalia de Roncana 2009
0-1 (35)}) 11. Ne5 (11. Nxg5 $142 Qxg5 12. Nc3 $15) 11... d6 $19 12. Nd3 (12.
a3 $142 dxe5 13. axb4 exd4 14. Bd3 $17) 12... Nxd3 $4 (12... Nh3+ $142 13. gxh3
Qg5+ 14. Kh1 Bxh3 $19) 13. Bxd3 $15 Ne6 14. Bc2 (14. Nc3 Nf4 $17) 14... Qg5 (
14... Qf6 15. d5 Nf4 16. Nc3 $17) 15. Nc3 Nf4 16. Qf3 Bh3 $4 {
Óâåëè~~èâàåò äàâëåíèå íà g2} (16... Bd7 $142 $17) 17. Qg3 $18 Qxg3 18. hxg3 (
18. fxg3 $6 Nxg2 19. Re2 d5 $14) 18... Nxg2 19. Re7 g5 $2 (19... Rae8 $142 20.
Rxe8 Rxe8 $18) 20. Be4 Nh4 (20... Rfc8 21. Bxb7 Kf8 22. Bxa8 (22. Bxg2 Bxg2 23.
Re3 Bc6 $15) 22... Kxe7 23. Bxg2 $18) 21. gxh4 gxh4 22. Nd5 (22. Kh2 Bg4 23.
Rg1 f5 $18) 22... f5 $2 (22... c6 23. Nc7 Rad8 $18) 23. Bf3 Bg4 24. Bxg4 (24.
Bh1 $142 $5 Rf7 25. Rae1 c6 $18) 24... fxg4 25. Nxc7 Rac8 26. Rae1 Rf4 (26...
Rf7 27. Re8+ Rxe8 28. Nxe8 $18) 27. Ne6 (27. Ne8 $142 Rc2 28. Rg7+ Kf8 29. Rxh7
Rfxf2 30. Rh8+ Kf7 31. Nxd6+ Kg7 32. Rxh4 Rg2+ 33. Kh1 g3 34. Rg4+ Kh6 35. Nf5+
Kh5 36. Rxg3 Rxg3 37. Nxg3+ Kg4 $18) 27... Rf6 $4 (27... Rf7 28. Ng5 Rxe7 29.
Rxe7 Rc1+ 30. Kg2 h3+ 31. Kh2 h5 $14) 28. Rg7+ $18 Kh8 29. Rxg4 Rc2 30. Nf4 h5
(30... Rf8 $18) 31. Re8+ Kh7 32. Re7+ Kh6 33. Rxh4 Kg5 (33... Rf5 34. Rxb7 Rd2
35. Nh3 $18) 34. Rg7+ Kxh4 (34... Kf5 35. Rh7 Rg6+ 36. Nxg6 Kxg6 37. Rxb7 Kg5
$18) 35. Ng2+ Kh3 36. Rg3# 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.4"]
[White "Ivanov, Oleg M."]
[Black "Andreev, Krasimir"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1604"]
[BlackElo "1882"]
[PlyCount "72"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 c5 2. b3 d6 3. Bb2 Nc6 4. e3 a6 ({RR} 4... Bg4 5. Be2 e6 6. O-O Nf6 7.
d4 Be7 8. c4 O-O 9. Nc3 cxd4 10. Nxd4 Bxe2 11. Ndxe2 Qa5 12. Nd4 a6 13. Nxc6
bxc6 14. Na4 d5 15. Rc1 Qd8 16. Qd4 Ne8 17. Qb6 Qxb6 18. Nxb6 Rd8 19. cxd5 {
Cvorovic,D (2425)-Kosanski,S (2420)/Makarska Tucepi 1995/EXT 1997/1-0 (57)}) ({
RR} 4... Bf5 5. Bb5 Qb6 6. Nc3 Nf6 7. d3 g6 8. Bxc6+ Qxc6 9. e4 Bd7 10. Qe2 Bg7
11. O-O O-O 12. h3 Nh5 13. Nd5 Rfe8 14. Bxg7 Nxg7 15. c4 f6 16. Rfe1 Kf7 17. b4
b6 18. b5 Qc8 19. Qb2 {
Lin,A (1735)-Eytan,D (1599)/San Francisco 2015/EXT 2016/0-1 (33)}) 5. Nc3 $146
({RR} 5. d4 cxd4 6. exd4 d5 7. c3 ({RR} 7. Be2 Bf5 8. O-O Nf6 9. Nbd2 e6 10.
Ne5 Rc8 11. c4 Be7 12. Rc1 dxc4 13. Nxc6 Rxc6 14. Bf3 Rc7 15. Nxc4 Nd5 16. Ne3
Rxc1 17. Qxc1 Bg6 18. Nxd5 exd5 19. Ba3 O-O 20. Bxe7 Qxe7 21. Bxd5 Qd7 {
Pogats,J (2260)-Csiszar,C (2235)/Hungary 1993/TD/1/2 (33)}) 7... Bf5 8. Bd3
Bxd3 9. Qxd3 Nf6 10. Nbd2 e6 11. O-O Bd6 12. Rae1 O-O 13. Ne5 Ne7 14. f4 Rc8
15. Qh3 h6 16. Rf3 Nh7 17. Kh1 Bxe5 18. dxe5 Re8 19. Rd3 Qa5 {
Vilerte,T (2155)-Kozlovskaya,V (2281)/Moscow 2011/CBM 144 Extra/1-0 (55)}) ({RR
} 5. c4 e5 6. d4 e4 7. Nfd2 Nf6 8. dxc5 dxc5 9. Bxf6 Qxf6 10. Na3 Bf5 11. Rc1
Rd8 12. Nab1 Be7 13. a3 O-O 14. Qc2 Qg6 15. Nc3 Rfe8 16. g3 Ne5 17. Ncxe4 Rxd2
18. Kxd2 Bxe4 {0-1 Giering,H (1665)-Kolb,W (1680)/Ellwangen 2000/EXT 2006})
5... Bg4 6. Be2 e6 7. O-O Nf6 8. d4 Be7 9. a3 O-O 10. Qd3 d5 11. Na4 Bf5 12.
Qd2 Ne4 13. Qc1 Rc8 14. c4 cxd4 15. Nxd4 Nxd4 16. exd4 b5 17. Nc3 dxc4 18. Nxe4
Bxe4 19. Qe3 Bd5 20. b4 Qd7 21. Rac1 Bd6 22. Rc3 f6 23. Qh3 Rf7 24. f4 Re8 25.
Re3 Rfe7 26. Bh5 g6 27. Bd1 Qc7 28. Qh4 Rf8 29. Bc2 f5 30. Qe1 Rg7 31. g3 Qf7
32. Kf2 h6 33. Ke2 Re8 34. Bc3 g5 35. fxg5 hxg5 36. Qf2 f4 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.5"]
[White "Tzonev, Kirjl"]
[Black "Mladenov, Andrey"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1877"]
[BlackElo "1589"]
[PlyCount "91"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. Nf3 c6 3. Bf4 Nf6 4. e3 e6 5. Bd3 Be7 6. O-O ({RR} 6. Nbd2 O-O 7.
Ne5 Nbd7 8. Qf3 Re8 9. Qh3 Nf8 10. g4 N6d7 11. Ndf3 f6 12. Nxd7 Bxd7 13. Rg1
Bc8 14. O-O-O Bd6 15. Qg3 Bxf4 16. Qxf4 Nd7 17. g5 f5 18. h4 Re7 19. h5 Qe8 20.
Rh1 e5 {
Del Rio Crespo,J (1723)-Sola Montoya,J (1872)/Sant Adria 2016/EXT 2017/1/2 (31)
}) 6... O-O ({RR} 6... b6 7. Nbd2 O-O 8. Ne5 Bb7 9. c3 c5 10. h3 Nbd7 11. Ndf3
a6 12. a4 h6 13. Bh2 Re8 14. Qe2 c4 15. Bc2 b5 16. a5 Bd6 17. Kh1 Qc7 18. Bb1
Nf8 19. Nd2 Ne4 20. f4 f6 21. Nxe4 {
Mueller,M (2320)-Onischuk,A (2585)/Dresden 1994/TD/0-1 (51)}) 7. c4 Nbd7 8. h3
c5 $146 ({RR} 8... dxc4 9. Bxc4 b5 10. Bd3 a6 11. Nc3 Bb7 12. Qe2 c5 13. dxc5
Nxc5 14. Bc2 b4 15. Na4 Nce4 16. Rfd1 Qa5 17. Ne5 Rac8 18. Nc4 Qb5 19. Nab6
Rcd8 20. f3 Nc5 21. a4 bxa3 22. bxa3 a5 23. Rab1 {
Ozturk,K (2131)-Leite,C (2218)/Dresden 2007/CBM 117 Extra/1/2 (55)}) 9. Nc3
cxd4 10. exd4 dxc4 11. Bxc4 Nb6 12. Bd3 Nbd5 13. Be5 b6 14. Rc1 Bb7 15. Re1 Rc8
16. Ng5 g6 17. Qe2 Nd7 18. Nf3 Nxe5 19. Qxe5 Bf6 20. Qg3 Nb4 21. Bb1 Nc6 22.
Rcd1 Qc7 23. Qxc7 Rxc7 24. Be4 Nb4 25. Bxb7 Rxb7 26. a3 Nc6 27. Ne5 Ne7 28. d5
Nxd5 29. Nxd5 exd5 30. Rxd5 Rc8 31. b3 Rc3 32. Ng4 Kg7 33. Re3 Rxe3 34. Nxe3
Rc7 35. Nc4 Be7 36. Kf1 Bc5 37. a4 a6 38. Ke2 Re7+ 39. Kf3 Re1 40. a5 Rb1 41.
Nd2 Rb2 42. Ke2 Ra2 43. axb6 Bxb6 44. f4 f5 45. Rd7+ Kh6 46. g4 $138 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.7"]
[White "Ignatov, Bojidar"]
[Black "Tenev, Bogdan"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "1826"]
[BlackElo "1450"]
[PlyCount "101"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. c4 e6 3. Nc3 Ne7 4. Bg5 ({RR} 4. Nf3 a6 5. cxd5 exd5 6. Bf4 Ng6 7.
Bg3 h5 8. h3 h4 9. Bh2 Bd6 10. Bxd6 Qxd6 11. e3 Nc6 12. Bd3 Nge7 13. a3 f6 14.
Qc2 g5 15. O-O-O Bd7 {
1/2 Antonsen,M (2470)-Fries Nielsen,J (2457)/Svendborg 2015/CBM 165 Extra}) ({
RR} 4. cxd5 exd5 5. Bg5 Nbc6 6. e3 a6 7. Bd3 f6 8. Bf4 Nb4 9. Bb1 Bf5 10. a3
Nbc6 11. Nf3 Bg4 12. h3 Bh5 13. O-O Qd7 14. Na4 b6 15. Bd3 Nf5 16. Qc2 Bg6 17.
Rac1 Nfe7 18. Bxg6+ hxg6 {
Tinica,G (1578)-Attouche,M (1209)/Montreal 2016/EXT 2017/1-0}) 4... b6 ({RR} 
4... f6 5. Bf4 a6 6. e3 g6 7. Nf3 b6 8. h3 Bb7 9. a3 Bg7 10. b4 O-O 11. c5 b5
12. Be2 Nbc6 13. O-O e5 14. dxe5 Nxe5 15. Nd4 Qd7 16. a4 c6 17. Qc2 f5 18. Rad1
Nf7 19. Na2 {Georgiev,N (1639)-Tenev,B/Sofia 2015/CBM 164 Extra/1/2 (62)}) 5.
e4 $146 ({RR} 5. Nf3 Bb7 6. e3 g6 7. Bd3 Bg7 8. O-O O-O 9. Bxe7 Qxe7 10. cxd5
exd5 11. Rc1 Nd7 12. Qb3 Nf6 13. Ne5 c5 14. Be2 cxd4 15. exd4 Ne4 16. Nxd5 Bxd5
17. Qxd5 Nd6 18. Bf3 Rfd8 19. Nc6 Qf6 {
Dang,T (1842)-Huynh,X (1826)/Ho Chi Minh City 2014/EXT 2016/1-0}) 5... dxe4 6.
Nxe4 Bb7 7. Ng3 h6 8. Be3 g6 9. Qc2 Bg7 10. Nf3 Bxf3 11. gxf3 O-O 12. O-O-O
Nbc6 13. Qe4 f5 14. Qh4 g5 15. Bxg5 hxg5 16. Qxg5 Qe8 17. Kb1 Qg6 18. Qh4 Bf6
19. Qh3 Nxd4 20. Bd3 Nxf3 21. Ne2 Ng5 22. Qe3 Kf7 23. h4 Ne4 24. f3 Nc5 25. Bc2
Bg7 26. Rhg1 Qf6 27. Rxg7+ Qxg7 28. b4 Nb7 29. Nf4 e5 30. c5 exf4 31. Bb3+ Ke8
32. Qe6 Rf6 33. Qd7+ Kf8 34. Qxc7 Nd5 35. Qe5 Nxb4 36. Rd7 Qxd7 37. Qxf6+ Ke8
38. Qh8+ Ke7 39. Qxa8 Nxc5 40. Qg8 Qd3+ 41. Kb2 Nxb3 42. axb3 Qe2+ 43. Ka3 Nc2+
44. Kb2 Nd4+ 45. Ka3 Nb5+ 46. Ka4 Nc3+ 47. Kb4 Na2+ 48. Ka3 Qe6 49. Qg7+ Qf7
50. Qe5+ Qe6 51. Qg7+ 1/2-1/2

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "1.8"]
[White "Anavi, David"]
[Black "Kolev, Velio"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1292"]
[BlackElo "1734"]
[PlyCount "97"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Bc4 Nb6 7. Bb3 Nc6 8. f4
dxe5 9. dxe5 Qxd1+ 10. Bxd1 Bf5 11. Nf3 h6 $146 ({RR} 11... e6 12. O-O Bc5+ 13.
Kh1 Bd3 14. Re1 Bf2 15. Nc3 Bxe1 16. Nxe1 Bg6 17. Nb5 O-O 18. Nd6 Rfd8 19. Bf3
Rab8 20. Be3 Nd5 21. Bc1 f6 22. Nc4 b5 23. Ne3 fxe5 24. Nxd5 e4 25. Ne7+ Nxe7
26. Be2 {Gottstein,T-Von Kiedrowski,K/Baunatal 1997/EXT 1999/0-1 (35)}) 12. O-O
e6 13. Nc3 Bc5+ 14. Kh1 O-O 15. a3 a5 16. Na4 Bd3 17. Re1 Bf2 18. Nxb6 Bxb6 19.
Be3 Bxe3 20. Rxe3 Rfd8 21. Be2 Bxe2 22. Rxe2 Rd5 23. Rd2 Rad8 24. Rad1 Ne7 25.
g4 Rxd2 26. Rxd2 Rxd2 27. Nxd2 Ng6 28. Nc4 a4 29. f5 Nf4 30. Nb6 Nd3 31. Nxa4
Nxe5 32. fxe6 fxe6 33. Nc5 b6 34. Nxe6 Nc4 35. Nc7 Nxb2 36. Nd5 Nc4 37. Kg2 Kf7
38. a4 Ke6 39. Nc3 Kd6 40. Kf3 Kc5 41. Kf4 Kb4 42. Nd5+ Kxa4 43. Kf5 b5 44. h3
Kb3 (44... g5 $1 $19) 45. Kg6 Ne5+ 46. Kxg7 Kc4 47. Ne3+ Kd4 48. Nd1 b4 49.
Kxh6 1/2-1/2

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.1"]
[White "Tzonev, Kirjl"]
[Black "Metev, Martin"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "1877"]
[BlackElo "2062"]
[PlyCount "90"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Ne7 ({RR} 
7... Nc6 8. Qg4 Kf8 9. h4 Nge7 10. h5 h6 11. Rh3 Qa4 12. Bd3 c4 13. Rg3 Rg8 14.
Bh7 Nf5 15. Bxg8 Nxg3 16. Qxg3 Qxc2 17. Rc1 Qe4+ 18. Ne2 Kxg8 19. Bxh6 Qh7 20.
Bg5 Qxh5 21. Nf4 Qh7 22. Qg4 {
Cadilhac,I (2051)-Da Silva,S (1797)/Sao Paulo 2016/CBM 170 Extra/1-0 (34)}) 8.
Qg4 ({RR} 8. c4 Qc7 9. cxd5 ({RR} 9. c3 cxd4 10. cxd4 dxc4 11. Qa4+ Bd7 12.
Qxc4 Qxc4 13. Bxc4 Nbc6 14. Ne2 Nf5 15. Bc3 Rc8 16. Bb3 h5 17. O-O Nce7 18. Bb2
Bb5 19. Rfe1 Nc6 20. d5 Na5 21. Ba2 Rc2 22. Bc3 exd5 23. Bxa5 Rxe2 {
Ruschukov,B (1983)-Metev,M (2003)/Sofia 2015/CBM 169 Extra/1-0}) 9... exd5 10.
c3 Nbc6 11. Be3 Nf5 12. Nf3 Nxe3 13. fxe3 c4 14. e4 Be6 15. Ng5 O-O 16. Qc2 Qe7
17. h4 g6 18. Be2 Rad8 19. O-O dxe4 20. Rf6 Bd5 21. Raf1 Nxe5 22. dxe5 Qxe5 {
Savchenko,B (2581)-Bartel,M (2641)/Dubai 2014/CBM 160 Extra/0-1 (70)}) 8... O-O
$146 ({RR} 8... Kf8 9. a4 Nbc6 10. Nf3 Qb6 ({RR} 10... c4 11. Be2 b5 12. h4
bxa4 13. h5 h6 14. Qf4 a3 15. Ra2 Rb8 16. O-O Rb2 17. Rfa1 Rxa2 18. Rxa2 Qb6
19. Ne1 Qb2 {0-1 Hatlebakk,E (2290)-Angantysson,H (2425)/Skien 1980/MCD}) 11.
dxc5 Qxc5 12. Bd3 h6 13. O-O b6 14. Rfe1 Na5 15. Qb4 Bd7 16. Qxc5 bxc5 17. c4
Nxc4 18. Bxc4 dxc4 19. Be3 f5 20. Bxc5 Kf7 21. Nd4 Rhc8 22. Bd6 Nc6 23. Nxc6 {
Cifka,S (2310)-Bartel,M (2481)/Cochin 2004/CBM 103 Extra/0-1 (48)}) ({RR} 8...
Nf5 9. Bd3 O-O 10. Ne2 Nc6 11. Bxf5 exf5 12. Qg3 Kh8 13. O-O cxd4 14. Rfd1 Qa4
15. cxd4 Qxc2 16. f3 Qc4 17. Qf2 Bd7 18. Be3 Na5 19. Nf4 Nb3 20. Rab1 g5 21.
Nh5 f4 22. Bxf4 gxf4 23. Qh4 {Lopez,M-Carvajal,J/La Paz 1964/EXT 2001/0-1 (34)}
) 9. Nf3 c4 10. h4 Qa4 11. Rc1 f5 12. exf6 Rxf6 13. Ne5 Qxa3 14. Be2 Nbc6 15.
O-O Nxe5 16. dxe5 Rf7 17. h5 Qc5 18. Be3 Qc7 19. Ra1 Qxe5 20. Bd4 Qc7 21. Bxa7
e5 22. Qg3 Nf5 23. Qh2 b5 24. Bb6 Qc6 25. Rxa8 Qxa8 26. g4 Qc6 27. Ba5 Nh6 28.
g5 Nf5 29. Bb4 Qe6 30. Bg4 Qe8 31. Re1 e4 32. Qb8 Rb7 33. Qa8 g6 34. Bxf5 gxf5
35. Bc5 f4 36. g6 hxg6 37. Bd4 f3 38. Qa6 Qe6 39. Qxe6+ Bxe6 40. hxg6 Bf5 41.
g7 Rb8 42. Kh2 Ra8 43. Kg3 Kf7 44. Kf4 Be6 45. Rh1 Rg8 1/2-1/2

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.2"]
[White "Grabchev, Plamen"]
[Black "Andreev, Dobrotich"]
[Result "0-1"]
[ECO "A15"]
[BlackElo "1985"]
[PlyCount "20"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. c4 Nf6 2. e3 c6 3. b3 ({RR} 3. a3 d5 4. Nf3 g6 5. Nc3 Bg7 6. Be2 O-O 7. O-O
Nbd7 8. cxd5 cxd5 9. d4 a6 10. Bd2 b5 11. Qb3 Nb6 12. Ne5 Nc4 13. Nxc4 dxc4 14.
Qd1 Bb7 15. b3 cxb3 16. Qxb3 Rb8 17. Rfd1 Qd7 {
Dairokuno,M (1849)-Rouanet,L (2014)/Nova Odessa 2016/EXT 2017/0-1 (84)}) 3...
d5 4. Bb2 Bg4 $146 ({RR} 4... e6 5. d3 Nbd7 6. Nd2 Be7 7. Ngf3 O-O 8. Qc2 b6 9.
Be2 Bb7 10. O-O Rc8 11. a3 c5 12. Rfe1 Bd6 13. Bf1 Re8 14. g3 e5 15. Bg2 e4 16.
dxe4 dxe4 17. Ng5 Qe7 18. Rad1 Be5 19. Ndxe4 {
Bellon Lopez,J (2446)-Abreu Delgado,A (2419)/Santa Clara 2000/CBM 078/1-0 (39)}
) 5. Be2 Bxe2 6. Qxe2 e6 7. d3 Be7 8. Ba3 Bxa3 9. Nxa3 Qa5+ 10. Qd2 Qxa3 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.3"]
[White "Andreev, Krasimir"]
[Black "Babatov, Martin"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1882"]
[BlackElo "1625"]
[PlyCount "67"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. h3 g6 7. Be3 $146 ({RR} 
7. Ne2 Bg7 8. Ng3 ({RR} 8. O-O O-O 9. Bf4 Re8 10. Nd2 Nd7 11. Nf3 Qb6 12. Rb1
f6 13. Bc2 Nf8 14. Re1 Be6 15. Qd2 Bf7 16. h4 Rad8 17. Bh6 Bh8 18. Ng3 e5 19.
dxe5 Nxe5 20. Nxe5 fxe5 21. h5 e4 22. hxg6 Nxg6 {
Fuernhammer,F (1888)-Palme,H (1991)/Germany 2016/EXT 2017/0-1 (37)}) 8... O-O
9. O-O e5 10. dxe5 Nxe5 11. Be2 Be6 12. f4 Qb6+ 13. Kh2 Nc6 14. f5 Bd7 15. Qc2
Rac8 16. Bg5 Nd4 17. Qd1 Nxf5 18. Nxf5 Bxf5 19. Qb3 Qe6 20. Bf3 Qe5+ 21. Kg1
Bd3 {Torres Caravaca,J-Aguilera,J/Barcelona 1929/EXT 2000/0-1 (32)}) ({RR} 7.
Bg5 Bg7 8. Nd2 Bf5 9. Bxf5 gxf5 10. Ne2 Ne4 11. Bf4 e6 12. f3 Nxd2 13. Qxd2 h5
14. O-O Rg8 15. Kh1 Bf6 16. Nc1 Bg5 17. Nd3 Bxf4 18. Qxf4 Qg5 19. Qxg5 {
1/2 Keitlinghaus,L (2510)-Meduna,E (2450)/Lazne Bohdanec 1994/CBM 040}) ({RR} 
7. Qe2 Bg7 8. Nf3 Qc7 9. Na3 O-O 10. Nb5 Qb8 11. Ne5 a6 12. Na3 Nxe5 13. dxe5
Ne4 14. Bxe4 dxe4 15. Qxe4 Bf5 16. Qe2 Bxe5 17. Nc4 Bc7 18. Bh6 Rd8 19. Rd1
Rxd1+ 20. Qxd1 Bf4 21. Bxf4 Qxf4 {
Hounie Fleurquin,C-Fenoglio,V/Buenos Aires 1935/HCL/1/2 (57)}) ({RR} 7. Nf3 Bf5
8. Bf4 Qc8 9. Ne5 Bg7 10. O-O O-O 11. Re1 Re8 12. Qc2 Nxd4 {
0-1 Moehler,G-Lange,W/Hamburg 1946/EXT 2005}) 7... Bg7 8. Nf3 a6 9. Nbd2 b5 10.
O-O O-O 11. Ne5 Nxe5 12. dxe5 Nd7 13. f4 e6 14. Bd4 Nb6 15. b3 Bd7 16. Qe2 Qc7
17. Qe3 Nc8 18. Bc5 Re8 19. b4 Bf8 20. Bxf8 Rxf8 21. Be2 Nb6 22. Rac1 Nc4 23.
Bxc4 dxc4 24. Ne4 Qa7 25. Nc5 Bc6 26. g4 Bd5 27. f5 gxf5 28. Qg5+ Kh8 29. Qf6+
Kg8 30. gxf5 exf5 31. Kh2 Rfc8 32. Rg1+ Kf8 33. Qd6+ Qe7 34. Nd7+ 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.5"]
[White "Tenev, Bogdan"]
[Black "Anavi, David"]
[Result "1/2-1/2"]
[ECO "C20"]
[WhiteElo "1450"]
[BlackElo "1292"]
[PlyCount "43"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. g3 Bc5 ({RR} 2... d5 3. exd5 Qxd5 4. Qf3 Qxf3 5. Nxf3 Nc6 6. Bb5
Bd7 7. O-O Bd6 8. Re1 Nge7 9. d3 h6 10. Nc3 O-O-O 11. Be3 f5 12. d4 e4 13. Nd2
a6 14. Bf1 g5 15. Nc4 Rdf8 16. Rad1 Nb4 17. Ne2 {
Weyrich,M (2345)-Nurkiewicz,M (2285)/Germany 1999/EXT 2000/0-1 (55)}) 3. d3 ({
RR} 3. f3 h5 4. h4 d5 5. Nc3 dxe4 6. Nxe4 Bb6 7. Bb5+ c6 8. Bc4 Nf6 9. d3 Nxe4
10. fxe4 Bg4 11. Nf3 Qd6 12. Bd2 Nd7 13. Qe2 Nc5 14. Bb4 a5 15. Bxc5 Bxc5 16.
O-O-O b5 17. d4 Bxd4 {
Chakli,S-Messaoudi,E (1840)/Algiers 2015/CBM 165 Extra/0-1}) 3... Nf6 4. Qe2
$146 ({RR} 4. Bg5 h6 5. Bxf6 Qxf6 6. Qd2 O-O 7. Nc3 c6 8. f4 exf4 9. Qxf4 Qe7
10. O-O-O d6 11. d4 Bb4 12. Bd3 Bxc3 13. bxc3 Be6 14. c4 Na6 15. e5 dxe5 16.
Qxe5 Qa3+ 17. Kd2 Rae8 18. Qe4 Qa5+ {
Mandoshkin,J-Redhead,G/London,Canada 1993/EXT 2005/0-1}) 4... d6 5. h3 Nc6 6.
c3 Be6 7. Be3 Bxe3 8. Qxe3 O-O 9. Bg2 d5 10. exd5 Bxd5 11. Nf3 e4 12. dxe4 Re8
13. Nfd2 Bxe4 14. Nxe4 Nxe4 15. Bxe4 f5 16. Nd2 fxe4 17. Nxe4 Qd5 18. f3 Ne5
19. O-O Nxf3+ 20. Qxf3 Rxe4 21. Rad1 Qe6 22. Qf5 1/2-1/2

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.6"]
[White "Krasteva, Beloslava"]
[Black "Ignatov, Bojidar"]
[Result "1-0"]
[ECO "E48"]
[WhiteElo "1986"]
[BlackElo "1826"]
[PlyCount "23"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nge2 d5 7. cxd5 Nxd5 ({RR
} 7... cxd4 8. Nxd4 Nxd5 9. Bd2 Nxc3 10. Bxc3 Bxc3+ 11. bxc3 Nd7 12. O-O Nf6
13. Be2 a6 14. Bf3 Qc7 15. Qb3 e5 16. Nc2 Rb8 17. Nb4 Be6 18. Nd5 Bxd5 19. Bxd5
e4 20. Rfd1 Ng4 21. g3 Nf6 22. Rd4 {
Lenderman,A (2601)-Lastin,A (2643)/ICC INT 2010/CBM 135 Extra/1/2 (52)}) 8. a3
({RR} 8. O-O cxd4 9. Nxd5 Qxd5 10. exd4 Nc6 11. Be3 b6 12. Qc2 f5 13. Bc4 Qd7
14. Nf4 Qe8 15. Qb3 Rf6 16. d5 exd5 17. Nxd5 Kh8 18. Nxf6 gxf6 19. Bb5 Bd6 20.
Qd5 Qe5 21. Qxe5 Nxe5 22. Rfd1 Be7 {Ferreira Maia,M (2085)-Noseda,F (1962)/Rio
de Janeiro 2016/CBM 173 Extra/1-0 (37)}) 8... cxd4 9. exd4 $6 (9. axb4 $142)
9... Nxc3 $146 ({RR} 9... Be7 10. O-O Nc6 11. Nxd5 Qxd5 12. Be3 Bf6 13. Qc2 g6
14. Rfd1 Ne7 15. Nc3 Qd8 16. Ne4 Bg7 17. Nc3 Nd5 18. Nxd5 exd5 19. Rac1 Bg4 20.
f3 Be6 21. Qc7 Rb8 22. Qxd8 Rfxd8 23. Rc7 Rdc8 24. Rdc1 {
Gokhale,J (2330)-Littke,A (2270)/Buenos Aires 1992/EXT 1997/1/2}) 10. bxc3 Be7
11. Bc2 b6 $4 (11... Nc6 $142 $11) 12. Be4 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.7"]
[White "Ruschukov, Boyan"]
[Black "Georgiev, Nikolay Zh."]
[Result "1-0"]
[ECO "D16"]
[WhiteElo "1844"]
[BlackElo "1623"]
[PlyCount "109"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Be6 6. e4 Na6 7. Ne5 ({RR} 7. e5
Nd5 8. Nd2 Nf4 9. Nf3 Nd3+ 10. Bxd3 cxd3 11. Qxd3 g6 12. Ne2 Bg7 13. O-O Nc5
14. Qc2 Nb3 15. Ra3 Nxc1 16. Rxc1 O-O 17. b4 Qd7 18. Ng3 a5 19. Qd2 axb4 20.
Qxb4 Ra7 21. Ne4 Bd5 {
Kolev,N (1841)-Georgiev,N (1506)/Sofia 2016/CBM 171 Extra/1-0 (45)}) 7... Qa5
8. Bd2 Qb6 9. Be3 $146 ({RR} 9. Bc1 O-O-O 10. Be3 Qxb2 11. Rc1 Nb4 12. Bxc4 Rg8
13. Bxe6+ fxe6 14. Nc4 Nc2+ 15. Qxc2 Qxc2 16. Rxc2 g6 17. f3 Bg7 18. O-O Rgf8
19. Rb1 Nd7 20. a5 Kc7 21. Na4 a6 22. Bf2 Kb8 23. Rcb2 b5 {
Cao,J (1980)-Romero,P/Montevideo 2014/CBM 159 Extra/1-0}) 9... Qxb2 10. Qc1
Qxc1+ 11. Rxc1 Nb4 12. f3 a5 13. Nxc4 Bxc4 14. Bxc4 e6 15. g4 h6 16. Ke2 Be7
17. h4 O-O-O 18. g5 hxg5 19. hxg5 Nh5 20. Kf2 g6 21. d5 cxd5 22. exd5 e5 23.
Bb6 Bxg5 24. Bxa5 Bxc1 25. Rxc1 Na6 26. Ne4 Kb8 27. Rb1 Ka8 28. Rd1 Rc8 29. Nd6
Nf6 30. Nxc8 Rxc8 31. Bb3 Nc5 32. Bc2 Nfd7 33. Bb4 b6 34. Ke3 Kb7 35. f4 Re8
36. f5 g5 37. Rg1 f6 38. Rh1 Kc7 39. Rh7 Ra8 40. Rf7 Kd6 41. a5 Re8 42. Be4
bxa5 43. Bxa5 Rb8 44. Bf3 Rb3+ 45. Kf2 Ra3 46. Bd8 e4 47. Be2 Ke5 48. Bb5 Ra7
49. Bc6 Kd6 50. Be7+ Ke5 51. Bxf6+ Kxf5 52. Bd4+ Kg6 53. Rg7+ Kh6 54. Re7 Ra2+
55. Kg3 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "2.8"]
[White "Kostov, Nikolay"]
[Black "Ivanov, Oleg M."]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1709"]
[BlackElo "1604"]
[PlyCount "103"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. e3 g6 3. Bd3 Bg7 4. c4 O-O 5. Nc3 d6 6. h3 ({RR} 6. Nge2 Nc6 ({RR
} 6... c6 7. O-O Nbd7 8. e4 e5 9. d5 cxd5 10. cxd5 Nc5 11. Be3 Nxd3 12. Qxd3
Ng4 13. h3 Nxe3 14. Qxe3 h5 15. f4 Bh6 16. Kh2 Bd7 17. g3 Qe7 18. Rae1 b5 19.
b4 Rfc8 20. Qd3 h4 21. gxh4 {
Benkovsky,P (1677)-Ostrochovsky,A (1985)/Ruzomberok 2016/CBM 172 Extra/0-1 (41)
}) 7. O-O e5 8. d5 Ne7 9. Ng3 c6 10. e4 a6 11. Rb1 cxd5 12. cxd5 Nd7 13. Be3 h5
14. Rc1 f5 15. exf5 gxf5 16. f4 e4 17. Be2 Nf6 18. Nxh5 Nxh5 19. Bxh5 Bd7 20.
Qd2 Kh8 {
Fradkin,B (2385)-Rashkovsky,N (2530)/Kurgan 1993/CBM 038 Extra/1/2 (31)}) 6...
c5 $146 ({RR} 6... Nbd7 7. Nf3 c6 8. e4 Qc7 9. Bg5 e5 10. d5 Nc5 11. Bc2 a5 12.
a4 Kh8 13. O-O Nh5 14. Rb1 Nf4 15. Bh4 f5 16. Bg3 Bf6 17. Bh4 Qe7 18. Bxf6+
Qxf6 19. Kh2 g5 20. dxc6 bxc6 21. g3 {
Santana,E (1765)-Albano,R/Americana 2009/CBM 132 Extra/0-1}) ({RR} 6... e5 7.
d5 Na6 8. Nf3 Nc5 9. Bc2 a5 10. a4 Ne8 11. Ne4 Nxe4 12. Bxe4 f5 13. Bc2 h6 14.
e4 f4 15. b3 Nf6 16. h4 Bg4 17. Qd3 Nd7 18. Ba3 b6 19. Bd1 Bf6 20. g3 Bg7 21.
Nh2 {Pereiro,O-Ortiz,J/Fuengirola 2005/CBM 109 Extra/1/2 (40)}) ({RR} 6... a6
7. Nf3 e6 8. Qc2 Nc6 9. O-O Nb4 10. Qd1 Nxd3 11. Qxd3 c6 12. Qc2 b5 13. cxb5
cxb5 14. Bd2 Bb7 15. e4 Rc8 16. Qd3 b4 17. Ne2 a5 18. Ng3 Qb6 19. Rfe1 Ba6 20.
Qb3 Bc4 21. Qd1 {
Nuelken,M (1248)-Bergert,B (1163)/Leipzig 2011/CBM 141 Extra/1-0 (56)}) 7. Nf3
Nc6 8. O-O a6 9. Qe2 Bd7 10. Rd1 Nb4 11. Bb1 b6 12. e4 Nc6 13. e5 Ne8 14. exd6
exd6 15. dxc5 dxc5 16. Nd5 b5 17. Be3 Nc7 18. Nb6 Nd4 19. Bxd4 cxd4 20. Nxa8
Qxa8 21. Nxd4 Re8 22. Qd2 bxc4 23. Bc2 Ne6 24. Nxe6 Bxe6 25. Ba4 Rb8 26. Qd6
Bxb2 27. Rab1 c3 28. Bc6 Qa7 29. Be4 Bxa2 30. Qf6 a5 31. Rd8+ Rxd8 32. Qxd8+
Kg7 33. Re1 Qc5 34. Bc2 Be6 35. g4 h6 36. Rxe6 fxe6 37. Qd3 Qg5 38. Qd7+ Kf8
39. Qc8+ Ke7 40. Qc7+ Ke8 41. Ba4+ Kf8 42. Qc8+ Kg7 43. Qd7+ Kf6 44. Qd4+ Ke7
45. Qg7+ Kd6 46. Qd7+ Ke5 47. Qc7+ Kd4 48. Qd7+ Qd5 49. Qg7+ Kd3 50. Qxg6+ Kd2
51. Qxh6+ Ke1 52. Qe3# 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "3.2"]
[White "Andreev, Dobrotich"]
[Black "Metev, Martin"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1985"]
[BlackElo "2062"]
[PlyCount "37"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Qe2 Be7 7. Nf3 b6 8.
Ne5 ({RR} 8. Nxf6+ Bxf6 9. Bf4 Bb7 10. O-O-O g5 11. Bg3 g4 12. Ne5 Bxe5 13.
Bxe5 Qg5+ 14. Kb1 Nxe5 {
1/2 Nestorovic,N (2435)-Brkljaca,A (2360)/Belgrade 2007/EXT 2010}) 8... Bb7 ({
RR} 8... Nxe5 9. dxe5 Nd7 10. Qg4 Nxe5 11. Qxg7 Nxd3+ 12. cxd3 Rf8 13. O-O Bb7
14. Bh6 f5 15. Nc3 Kd7 16. Qd4+ Kc8 17. Qc4 Rf6 18. Bf4 Rg6 19. f3 Bc5+ 20. Kh1
Bd6 21. Nb5 e5 22. Nxd6+ Qxd6 23. Rfe1 {
Tuncer,T (2175)-Kilic,E (1816)/Kocaeli 2015/CBM 167 Extra/1/2 (65)}) 9. Bb5 O-O
10. Nc6 $146 ({RR} 10. Bc6 Qc8 11. Nxf6+ Nxf6 12. Qf3 Bxc6 13. Nxc6 Qd7 14. O-O
Bd6 15. c4 h6 16. Rd1 Nh7 17. Be3 f5 18. Ne5 Qe8 19. h4 f4 20. Bd2 Bxe5 21.
dxe5 g5 22. g3 fxg3 23. Qxg3 Qh5 24. Kg2 Rad8 {
Tang,H-Tumanon,F/Beijing 1975/EXT 2012/1/2 (44)}) 10... Qe8 11. O-O a6 12.
Nxe7+ Qxe7 13. Bd3 Nxe4 14. Bxe4 Bxe4 15. Qxe4 c5 16. d5 Nf6 17. Bg5 Nxe4 18.
Bxe7 Rfe8 19. d6 {...} 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "3.3"]
[White "Tenev, Bogdan"]
[Black "Krasteva, Beloslava"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1450"]
[BlackElo "1986"]
[PlyCount "44"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 d5 2. Nc3 e6 3. g3 Nf6 4. Bg5 ({RR} 4. Bg2 c5 5. dxc5 Bxc5 6. Nf3 Nc6 7.
O-O h6 8. b3 O-O 9. Bb2 b6 10. a3 Bb7 11. e3 Rc8 12. Qe2 Qe7 13. Rfd1 Rfd8 14.
Nb5 Ne4 15. Nfd4 a6 16. Nxc6 Rxc6 17. Bxe4 dxe4 18. Qg4 Rxd1+ {
Bogdan,D (2395)-Istratescu,A (2535)/Herculane 1996/CBM 056 Extra/0-1 (34)}) ({
RR} 4. a3 Nbd7 5. e3 c6 6. Bd2 Bd6 7. Bg2 O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4
Nf6 11. Bg5 h6 12. Bxf6 Qxf6 13. Nf3 e5 14. d5 Bc5 15. b4 Bb6 16. c4 cxd5 17.
Bxd5 e4 18. c5 exf3 {Patkai,A-Bocska,J (2004)/Hungary 2015/EXT 2016/0-1}) 4...
c5 $146 ({RR} 4... Be7 5. Nf3 O-O 6. Bg2 Nbd7 7. a3 c5 8. e3 b6 9. O-O Bb7 10.
Rc1 Rc8 11. Re1 cxd4 12. Qxd4 h6 13. Bxf6 Bxf6 14. Qb4 Rc4 15. Qb3 Nc5 16. Qa2
Bxc3 17. bxc3 Rxc3 18. Bf1 Qf6 19. Nd2 {
Vegh,I (1855)-Horvath,R (2042)/Hungary 2003/EXT 2009/0-1}) ({RR} 4... h6 5.
Bxf6 Qxf6 6. e4 Bb4 7. e5 Qe7 8. Nf3 c5 9. Bg2 Nc6 10. O-O cxd4 11. Nb5 O-O 12.
Nbxd4 Nxd4 13. Nxd4 Bd7 14. c3 Ba5 15. Re1 a6 16. Re3 Rfc8 17. Rf3 Rc7 18. Rf4
Rf8 19. Bf1 {Minani,F-Press,S/Istanbul 2000/EXT 2001/0-1 (68)}) 5. e3 Nc6 6.
Nge2 h6 7. Bxf6 Qxf6 8. Bg2 cxd4 9. Nxd4 Bb4 10. Qd3 O-O 11. O-O Ne5 12. Qd1
Bxc3 13. bxc3 b6 14. e4 Ba6 15. Re1 dxe4 16. Rxe4 Rac8 17. f4 Nc4 18. Bf1 Bb7
19. Re1 Rfd8 20. Qc1 Rxd4 21. cxd4 Qxd4+ 22. Re3 Nxe3 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "3.4"]
[White "Babatov, Martin"]
[Black "Ruschukov, Boyan"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1625"]
[BlackElo "1844"]
[PlyCount "57"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Nf3 e5 7. d5 Nh5 8. Be3 a5
({RR} 8... f5 9. a3 a5 10. c5 f4 11. Bd2 dxc5 12. Qb3 Kh8 13. Be2 Nf6 14. Rc1
b6 15. O-O Ne8 16. Rfd1 Nd6 17. Be1 Qe7 18. Nd2 Nd7 19. Qc2 Nf6 20. b4 axb4 21.
axb4 cxb4 22. Ncb1 Ra7 23. f3 {
Arnaudov,P (2464)-Cheparinov,I (2686)/Kozloduy 2014/CBM 160 Extra/0-1 (51)}) 9.
Qd2 $146 ({RR} 9. c5 Na6 10. cxd6 cxd6 11. Nd2 Nc5 12. g3 ({RR} 12. Bxc5 dxc5
13. a4 Kh8 14. g3 Nf6 15. Nc4 Ne8 16. h4 f5 17. h5 Qg5 18. hxg6 Qxg6 19. Qh5
Qxh5 20. Rxh5 Nf6 21. Rh4 Nxe4 22. Nxe4 fxe4 23. Nb6 Rb8 24. Nxc8 Rbxc8 25.
Rxe4 Rcd8 26. Bc4 Rd6 {
Arnaudov,P (2490)-Mareco,S (2557)/Varna 2013/CBM 155 Extra/1-0 (60)}) ({RR} 12.
Nc4 b6 13. Bxc5 {
1/2 Georgiev,V (2532)-Solak,D (2598)/Golden Sands 2013/CBM 154 Extra}) 12...
Nf6 13. Bxc5 dxc5 14. a4 Ne8 15. Nc4 Nd6 16. Nxd6 Qxd6 17. Nb5 Qb6 18. h4 Bd7
19. h5 Bxb5 20. Bxb5 Qd6 21. Bc4 Rad8 22. Ra3 f5 23. hxg6 hxg6 {
Kovalenko,I (2667)-Kollars,D (2445)/Jurmala 2016/CBM 171 Extra/1-0 (45)}) 9...
f5 10. exf5 gxf5 11. Bh6 Na6 12. Bxg7 Kxg7 13. g4 Nf4 14. Ne2 Nxe2 15. Bxe2 Nc5
16. gxf5 Rxf5 17. Rg1+ Kh8 18. Qh6 Qf6 19. Qe3 Bd7 20. O-O-O Rf8 21. Rg3 e4 22.
Nd2 Rxf2 23. Rdg1 Na4 24. Nxe4 Qxb2+ 25. Kd1 Qb1+ 26. Kd2 Qxa2+ 27. Kd1 R2f4 $4
(27... Nb2+ $19) 28. Qd4+ R4f6 29. Qxf6+ 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "3.5"]
[White "Anavi, David"]
[Black "Kostov, Nikolay"]
[Result "1/2-1/2"]
[ECO "C61"]
[WhiteElo "1292"]
[BlackElo "1709"]
[PlyCount "49"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. c3 Qg5 6. Be2 ({RR} 6. Bf1 Bc5 (
{RR} 6... Qg6 7. d3 Nf6 8. cxd4 Bb4+ 9. Nc3 d6 10. Be3 O-O 11. a3 Bxc3+ 12.
bxc3 Bd7 13. g3 Nh5 14. Be2 Nf6 15. h4 Ng4 16. h5 Nxe3 17. hxg6 Nxd1 18. gxh7+
Kh8 19. Bxd1 f5 20. f3 Rf7 21. Be2 {Enachi,A (1038)-Bocanici,D (1039)/
Calimanesti Caciulata 2016/CBM 172 Extra/1/2 (57)}) 7. d3 Qe7 8. Nd2 Nf6 9. Be2
O-O 10. Nb3 dxc3 11. bxc3 Bb6 12. a4 c6 13. O-O Re8 14. a5 Bc7 15. f4 d6 16.
Bf3 Nd7 17. d4 f5 18. e5 dxe5 19. Ba3 Qf7 20. fxe5 Nf8 {
Hansen,E (2550)-Gibson,K (2244)/Windsor 2010/EXT 2012/1-0 (45)}) 6... d3 7. Bf1
d5 $146 ({RR} 7... Nf6 8. Qf3 Ng4 9. Qf5 Qxf5 10. exf5 Bc5 11. f3 Nf2 12. Rg1
O-O {0-1 Djurhuus,E (1831)-Ioannidis,E (2002)/Maribor 2012/EXT 2013}) 8. Qf3
Bg4 9. Qxd3 O-O-O 10. Qe3 Qxe3+ 11. dxe3 dxe4 12. Be2 Be6 13. Nd2 Nf6 14. Nb3
c5 15. Bd2 Be7 16. O-O-O Ng4 17. Be1 Rxd1+ 18. Bxd1 Ne5 19. Be2 a6 20. f3 Bc4
21. Bxc4 Nxc4 22. fxe4 Nxe3 23. Bf2 Nxg2 24. Bxc5 Bg5+ 25. Kb1 1/2-1/2

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "3.6"]
[White "Ignatov, Bojidar"]
[Black "Grabchev, Plamen"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "1826"]
[PlyCount "49"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 b6 2. c4 Nf6 3. Nc3 Bb7 4. f3 e6 5. e4 Bb4 6. Bd3 h6 7. Nge2 d5 8. cxd5
exd5 9. e5 Bxc3+ 10. bxc3 Nfd7 11. O-O Ba6 12. f4 Bxd3 13. Qxd3 Nc6 14. f5 f6
15. e6 Nf8 16. Ba3 a6 17. Nf4 h5 18. Qf3 Ne7 19. Nxh5 Nh7 20. Nxg7+ Kf8 21. Nh5
Rc8 22. Qe3 Ng5 23. Nxf6 c5 24. Qxg5 Ng8 25. Nd7+ 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.21"]
[Round "3.8"]
[White "Georgiev, Nikolay Zh."]
[Black "Ivanov, Oleg M."]
[Result "0-1"]
[ECO "C40"]
[WhiteElo "1623"]
[BlackElo "1604"]
[PlyCount "60"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 d5 3. Nxe5 Bd6 4. d4 ({RR} 4. Nxf7 Kxf7 5. Qh5+ Kf8 6. Qxd5 Nf6
7. Qc4 Qe8 8. Nc3 Be6 9. Qe2 Nc6 10. d3 Nd4 11. Qd1 Qh5 12. Be3 Qxd1+ 13. Kxd1
c5 14. h3 h6 15. f4 Nh5 16. e5 Ng3 17. Rg1 Be7 18. Ne4 Nxf1 {
Simic,A (2283)-Hodak,S (2235)/Babina Greda 2014/EXT 2016/0-1 (42)}) ({RR} 4. f4
Bxe5 5. fxe5 Qh4+ 6. Ke2 Bg4+ 7. Kd3 dxe4+ 8. Kxe4 Bxd1+ 9. Kd5 Bxc2 10. Nc3
Nc6 11. g3 Qd4# {0-1 Biletskyy,D-Hrabinska,A/Lvov 2016/EXT 2017}) 4... Qe7 5.
Be2 $146 ({RR} 5. Nc3 dxe4 6. Nd5 Qe6 ({RR} 6... Qd8 7. Bc4 Be6 8. O-O f6 9.
Nf4 Bxc4 10. Nxc4 Bxf4 11. Bxf4 Na6 12. Qh5+ Kf8 13. Rad1 Ne7 14. d5 g6 15. Qe2
Nxd5 16. Qxe4 c6 17. Rfe1 Kg7 18. Nd6 Nxf4 19. Qxf4 Qc7 20. Re6 Rhf8 21. Rde1 {
Boehm,T-Roggon,B/Bad Segeberg 2000/EXT 2002/1-0 (62)}) 7. Bc4 Qf5 8. g4 Qxe5 9.
dxe5 Bxe5 10. Bf4 Nd7 11. Bxe5 Nxe5 12. Nxc7+ Ke7 13. Be2 Rb8 14. Qd5 Ng6 15.
Qc5+ Kd8 16. O-O-O+ Bd7 17. Rxd7+ Kxd7 18. Rd1+ Kc8 19. Na6# {
1-0 Parrilli,F-Pipino,H (1981)/Villa Carlos Paz 2004/CBM 102 Extra}) ({RR} 5.
Qe2 Nf6 6. Bg5 Bxe5 7. dxe5 Qxe5 8. Bxf6 gxf6 9. exd5 Qxe2+ 10. Bxe2 Nd7 11.
Bb5 a6 12. Bxd7+ Bxd7 13. Nc3 O-O-O 14. O-O c6 15. d6 Bf5 16. Rad1 Bxc2 17. Rd2
Bf5 18. Re1 Rhe8 19. Rxe8 Rxe8 {
Trifonova,N-Kostylev,O/Gorodets 2014/EXT 2016/1/2}) 5... dxe4 6. Nc4 Nc6 7. O-O
Nf6 8. Re1 Bf5 9. Bg5 O-O-O 10. Bf3 Nxd4 11. Nxd6+ Rxd6 12. Bxe4 Bxe4 13. Bxf6
gxf6 14. f3 Nxf3+ 15. Qxf3 Bxf3 16. Rxe7 Rd1+ 17. Kf2 Bd5 18. Re1 Rxe1 19. Kxe1
Bxg2 20. Nc3 f5 21. Kf2 Be4 22. Nb5 c6 23. Na3 Rg8 24. Rg1 Rxg1 25. Kxg1 b5 26.
c3 Kd7 27. Kf2 Ke6 28. Kg3 Ke5 29. Kh4 f4 30. Kg5 f3 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.1"]
[White "Andreev, Krasimir"]
[Black "Andreev, Dobrotich"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1882"]
[BlackElo "1985"]
[PlyCount "53"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 g6 6. h3 Bf5 7. Nf3 Bxd3 8.
Qxd3 Bg7 9. Bf4 e6 10. O-O Nge7 11. Nbd2 ({RR} 11. Qb5 Qd7 12. Nbd2 O-O 13.
Rfe1 Rfc8 14. Nb3 Ne5 15. Qxd7 Nxd7 16. Na5 b6 17. Nb7 Rc6 18. Nd6 Nc8 19. Nxc8
Raxc8 20. Rad1 b5 21. a3 a5 22. Rc1 Nb6 23. Be5 Nc4 24. Bxg7 Kxg7 25. Ne5 Nxe5
{Petrov,A (1562)-Andreev,D (2073)/Sofia 2012/CBM 146 Extra/0-1 (45)}) 11... O-O
12. Rae1 $146 ({RR} 12. Rfe1 Rc8 13. Nb3 Na5 14. Nc5 b6 15. Nb3 Nc4 16. Re2 Nc6
17. Rb1 N6a5 18. Qd1 Nb7 19. Nbd2 Nxd2 20. Qxd2 Re8 21. Bh6 Bh8 22. Rbe1 Nd6
23. Ng5 Nf5 24. Nf3 Nxh6 25. Qxh6 Bg7 26. Qf4 Qc7 {
Witek,P-Klim,K/Kolobrzeg 2003/EXT 2007/0-1 (47)}) 12... Nf5 13. Re2 Qa5 14. a3
Qb6 15. Rb1 Rfc8 16. g4 Nfe7 17. h4 Qd8 18. Kg2 Na5 19. Rh1 Nc4 20. Nxc4 dxc4
21. Qe4 Qd5 22. h5 Qxe4 23. Rxe4 Nd5 24. hxg6 hxg6 25. Bg3 Nf6 26. Rf4 b5 27.
Ne5 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.2"]
[White "Krasteva, Beloslava"]
[Black "Tzonev, Kirjl"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1986"]
[BlackElo "1877"]
[PlyCount "45"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nc6 7. d5 Nb8 8. Be3
c5 ({RR} 8... Na6 9. Nd2 e6 10. O-O Re8 11. Rc1 c5 12. Kh1 e5 13. a3 Rf8 14. f4
exf4 15. Bxf4 Qe7 16. Nb5 Ne8 17. Qb3 f5 18. Qg3 Bxb2 19. Rce1 Be5 20. Bd3 Ng7
21. exf5 Nh5 22. Qg5 Qxg5 23. Bxg5 {
Magerramov,E (2555)-Mirzoeva,E (2260)/Abu Dhabi 2001/EXT 2002/1-0 (33)}) ({RR} 
8... Ng4 9. Bd4 Ne5 10. Nxe5 dxe5 11. Be3 e6 12. Bc5 Re8 13. d6 Na6 14. Ba3
cxd6 15. Qxd6 Qg5 16. g3 Rd8 17. h4 Qf6 18. Qe7 Bd7 19. Qxf6 Bxf6 20. O-O-O
Rac8 21. Kb1 Nc5 22. f3 a6 23. Rd2 {
Petraitis,G (1902)-Grabarczyk,S (1725)/Kaunas 2015/CBM 167 Extra/1/2 (70)}) 9.
O-O $146 ({RR} 9. Qd2 Qa5 10. h3 a6 11. O-O b5 12. cxb5 axb5 13. e5 b4 14. Nb5
Ne4 15. Qc2 Bf5 16. Bd3 dxe5 17. Bxe4 Bxe4 18. Qxe4 Qxb5 19. Nxe5 Nd7 20. Nxd7
Qxd7 21. Bxc5 Bxb2 22. Rab1 Bc3 23. Bxe7 Rfe8 {
Demel,P (1932)-Kraemer,M (2104)/Bayern 2004/EXT 2007/0-1 (32)}) ({RR} 9. h3
Nbd7 ({RR} 9... a6 10. O-O Nbd7 11. Qc1 Rb8 12. a4 Ne8 13. Bh6 Ne5 14. Bxg7
Nxf3+ 15. Bxf3 Kxg7 16. Qe3 Qc7 17. Rae1 Nf6 18. Bd1 e5 19. f4 Qe7 20. f5 Bd7
21. h4 h6 22. g4 Nh7 23. Qh3 g5 24. Rf2 {
Markov,V (2125)-Petrovic,D (2215)/Pula 1989/EXT 1997/0-1 (42)}) 10. Qd2 a6 11.
Bh6 Qa5 12. Bxg7 Kxg7 13. O-O b5 14. Qc2 bxc4 15. Bxc4 Nb6 16. Be2 Nbd7 17. Nd2
Qc7 18. Rad1 Nb6 19. b3 Nfd7 20. Qb2 Kg8 21. a4 Bb7 22. a5 Nc8 23. Nc4 Na7 {
Cuadrado Lopez,F (1957)-Fernandez Lledo,J (2138)/Madrid 2011/CBM 140 Extra/1-0
(51)}) 9... a6 10. Ne1 e6 11. Rc1 Re8 12. a3 exd5 13. exd5 Nbd7 14. b4 b6 15.
Nf3 Rxe3 16. fxe3 Bh6 17. Qd3 Ng4 18. Nd1 Qe7 19. Kh1 Ndf6 20. Nh4 Bxe3 21.
Nxe3 Nxe3 22. Rxf6 Qxf6 23. Qxe3 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.3"]
[White "Kostov, Nikolay"]
[Black "Babatov, Martin"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "1709"]
[BlackElo "1625"]
[PlyCount "58"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 c6 2. e4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. Bd3
Bxd3 9. Qxd3 Qc7 10. Be3 Ngf6 11. O-O-O O-O-O 12. Qb3 e6 13. Kb1 c5 $146 ({RR} 
13... Ng4 14. Ne2 Bd6 15. Rhf1 Qb6 16. Nd2 Qxb3 17. Nxb3 {
1/2 Balazs,T (2056)-Szili,I (2098)/Hungary 2000/EXT 2007}) 14. dxc5 Bxc5 15. c4
Bxe3 16. Qxe3 Kb8 17. b3 Ng4 18. Qe2 Qb6 19. Rd2 Ndf6 20. Rhd1 Rxd2 21. Rxd2
Rd8 22. Rxd8+ Qxd8 23. Ne5 Nxe5 24. Qxe5+ Qc7 25. Qe2 Qf4 26. Qd3 Kc7 27. c5
Nd5 28. Ne4 Qxh4 29. g3 Qxe4 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.4"]
[White "Metev, Martin"]
[Black "Anavi, David"]
[Result "0-1"]
[ECO "C97"]
[WhiteElo "2062"]
[BlackElo "1292"]
[PlyCount "70"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3
O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nb7 13. a4 ({RR} 13. Kh2 Kh8 14. g4
Ng8 15. Rg1 Bd7 16. Be3 g6 17. b3 f6 18. Nbd2 Rf7 19. a4 Qc8 20. Qe2 h5 21. Nh4
g5 22. Nf5 Rh7 23. axb5 axb5 24. Kg2 Bd8 25. Bd3 Ba5 26. Bxb5 Bxf5 27. exf5
Bxc3 {Garcia Pantoja,R (2456)-Gonzalez Arroyo,L (2233)/Oaxtepec 2016/CBM 171
Extra/1-0 (38)}) 13... Bd7 14. Nbd2 Rfe8 $146 ({RR} 14... c4 15. Nf1 Nc5 16.
axb5 axb5 17. Ra3 ({RR} 17. Rxa8 Rxa8 18. Ng3 g6 19. Nh2 Ra2 20. Qf3 Qc8 21.
Ngf1 Nh5 22. Ng4 Bxg4 23. hxg4 Nf4 24. Bxf4 exf4 25. Rb1 Bg5 26. g3 fxg3 27.
Qxg3 Qe8 28. f4 Bf6 29. g5 Bg7 30. Qf3 b4 31. cxb4 Na6 {
Crespo,R (2209)-Rada Equiza,M/Vila Real 2001/EXT 2002/0-1 (37)}) 17... Rxa3 18.
bxa3 Ra8 19. N1h2 Be8 20. Nd2 Qa5 21. Nb1 Na4 22. Qd2 Nd7 23. f4 exf4 24. Qxf4
Ne5 25. Re3 h6 26. Rg3 Bg5 27. Rxg5 hxg5 28. Qxg5 Qd8 29. Qg3 {
Konera,M (1626)-Pikulinski,J (1848)/Lublin 2013/CBM 158 Extra/0-1 (31)}) 15.
Nf1 h6 16. Ng3 Bf8 17. Nh2 g6 18. Be3 c4 19. Ng4 Nxg4 20. hxg4 Nc5 21. axb5
axb5 22. f3 Reb8 23. Kf2 Rxa1 24. Qxa1 b4 25. Qc1 Qb6 26. cxb4 Qxb4 27. Bxh6
Qxb2 28. Re2 Qxc1 29. Bxc1 Ba4 30. Bxa4 Nd3+ 31. Ke3 Bh6+ 32. f4 exf4+ 33. Kf3
Ne5+ 34. Kf2 fxg3+ 35. Kxg3 Bxc1 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.5"]
[White "Kolev, Velio"]
[Black "Ignatov, Bojidar"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1734"]
[BlackElo "1826"]
[PlyCount "32"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 cxd4 6. Nxd4 e5 7. Nxc6 bxc6 8.
c4 Be6 9. Qa4 Qb6 $2 (9... Bd7 $142 $11) ({RR} 9... Qd7 10. Rd1 Rc8 11. Nd2 Bd6
12. e4 d4 13. Qc2 c5 14. Nf3 h6 15. Ne1 O-O 16. Nd3 Nh7 17. f4 exf4 18. gxf4 f5
19. e5 Be7 20. b3 Kh8 21. Qe2 Qe8 22. Bd2 g5 23. Bd5 Qf7 24. Bxe6 {
Vachier Lagrave,M (2789)-Anand,V (2770)/Leuven 2016/CBM 173/0-1 (51)}) 10. Nc3
Rd8 11. cxd5 Nxd5 12. Rd1 $146 ({RR} 12. Nxd5 Bxd5 13. Be3 Qb5 14. Qxb5 cxb5
15. Rfd1 Bxg2 16. Rxd8+ Kxd8 17. Kxg2 a6 18. Bb6+ Kc8 19. Rc1+ Kb7 20. Bc7 f6
21. e4 Be7 22. Ba5 Bd8 23. Bb4 Bb6 24. f3 Rd8 25. Kf1 Rd3 26. Kg2 Be3 {
Bergersen,P (1502)-Skogli,P (1640)/Oslo 2009/EXT 2011/1/2}) 12... Ke7 13. Bd2
f6 14. Nxd5+ Bxd5 15. Ba5 Qb8 16. Bxd8+ Qxd8 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.6"]
[White "Ruschukov, Boyan"]
[Black "Grabchev, Plamen"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "1844"]
[PlyCount "31"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 h6 5. g3 ({RR} 5. Bd2 Nc6 6. e3 O-O 7. Bd3
d5 8. a3 Ba5 9. O-O Re8 10. b4 dxc4 11. Bxc4 Bb6 12. b5 Na5 13. Na4 Nxc4 14.
Bb4 Bd7 15. Nc3 a5 16. Rb1 axb4 17. Rxb4 Rxa3 {
0-1 Jonker,D (783)-Mkhize,N (880)/Cape Town 2016/CBM 170 Extra}) 5... b6 6. Bg2
Bb7 7. O-O a6 $146 ({RR} 7... Bxc3 8. bxc3 O-O 9. Nh4 ({RR} 9. a4 d6 10. a5 Re8
11. Qb3 Nbd7 12. Rd1 Qe7 13. a6 Be4 14. Ba3 Rab8 15. Ra2 e5 16. Rb2 Qe6 17. Rc1
Ba8 18. Ne1 Bxg2 19. Kxg2 Ng4 20. h3 Nxf2 21. Kxf2 Qxh3 22. Ng2 Nf6 23. Rg1
Ng4+ {Plasencia Garcia,J-Mendoza Contreras,L (2325)/Tenerife 1989/EXT 1997/0-1}
) 9... Bxg2 10. Nxg2 d6 11. Re1 c5 12. e4 e5 13. d5 Nh7 14. Qg4 Qd7 15. Qf3 f5
16. Qh5 fxe4 17. Qg6 Kh8 18. Qxe4 Qf7 19. Rf1 Nf6 20. Qe2 Nbd7 21. Nh4 Rfd8 22.
Nf5 {Borbas,P (1777)-Jevtic,M (2073)/Novi Sad 2014/CBM 158 Extra/0-1 (45)}) ({
RR} 7... O-O 8. Qb3 a5 9. Ne5 Bxg2 10. Kxg2 d6 11. Nf3 Nbd7 12. Nd1 d5 13. a3
Bd6 14. cxd5 exd5 15. Ne3 Re8 16. Qb5 Rc8 17. Nf5 c6 18. Qd3 Bf8 19. Bf4 Ne4
20. Rac1 Qf6 21. Ne3 Qe6 22. g4 {Gonzalez Velez,F (2395)-Garcia Ilundain,D
(2495)/Ponferrada 1997/CBM 060 Extra/0-1 (40)}) 8. Qb3 Bxc3 9. Qxc3 d6 10. b4
Nbd7 11. Rd1 Ne4 12. Qe3 Rb8 13. Bb2 g5 14. d5 e5 15. Qxe4 Nf6 16. Qc2 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "4.7"]
[White "Ivanov, Oleg M"]
[Black "Mladenov, Andrey"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1604"]
[BlackElo "1589"]
[PlyCount "70"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 Nf6 2. b4 d5 3. Bb2 e6 4. a3 Be7 ({RR} 4... c5 5. b5 Be7 6. e3 O-O 7.
Be2 a6 8. a4 axb5 9. Bxb5 Nc6 10. O-O Bd7 11. d3 {
1/2 Stevic,H (2606)-Zelcic,R (2501)/Schwarzach 2015/EXT 2016}) 5. d3 $146 ({RR
} 5. d4 O-O 6. e3 ({RR} 6. Nfd2 Nbd7 7. f3 Nb6 8. e3 Na4 9. Bc1 Nb6 10. Bd3 c6
11. O-O Qc7 12. f4 a5 13. bxa5 Rxa5 14. Nb3 Ra8 15. N1d2 Na4 16. g4 c5 17. g5
c4 18. gxf6 Bxf6 19. Be2 cxb3 20. Nxb3 Nc3 {
Anikin,V (1863)-Parshakov,V (2006)/Uljanovsk 2010/EXT 2012/1/2 (50)}) 6... Nbd7
7. c4 dxc4 8. Bxc4 a5 9. b5 Nb6 10. Bd3 Nbd5 11. O-O Bd7 12. Nc3 Nxc3 13. Bxc3
Nd5 14. Bd2 c6 15. e4 Nf6 16. Ng5 g6 17. f4 cxb5 18. Qf3 h6 19. Nh3 Bc6 {
Ivanov,O (1632)-Mladenov,A (1615)/Sofia 2016/CBM 173 Extra/0-1 (32)}) ({RR} 5.
g3 O-O 6. Bg2 c5 7. bxc5 Bxc5 8. O-O Nc6 9. d4 Bd6 10. Nbd2 Bd7 11. c4 Rc8 12.
Re1 Ne4 13. Nxe4 dxe4 14. Nd2 f5 15. e3 Be8 16. c5 Be7 17. f3 Bh5 18. Qb3 exf3
19. Nxf3 Qd7 {
Janusaitis,M (1967)-O'Rourke,R (2026)/Dublin 2012/CBM 149 Extra/0-1 (34)}) 5...
O-O 6. Nbd2 c6 7. c4 a5 8. c5 axb4 9. axb4 Rxa1 10. Qxa1 b6 11. d4 Ba6 12. Ne5
Qc7 13. g3 Qb7 14. Nd3 Nbd7 15. Bg2 Ra8 16. Qc1 Bxd3 17. exd3 Qa6 18. O-O bxc5
19. dxc5 Qxd3 20. Rd1 Qb5 21. Bc3 Ra4 22. Qc2 Ra7 23. Nb3 Qb8 24. Na5 Qc7 25.
Bf1 Ne4 26. Be1 Ne5 27. Qa4 Nf3+ 28. Kg2 Nxe1+ 29. Rxe1 Bxc5 30. Qxc6 Bxb4 31.
Qe8+ Bf8 32. Nc6 Nd6 33. Qb8 Qxb8 34. Nxb8 Ra2 35. Rc1 g6 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "5.2"]
[White "Andreev, Dobrotich"]
[Black "Babatov, Martin"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1985"]
[BlackElo "1625"]
[PlyCount "23"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 d5 2. Nf3 dxe4 3. Ng5 Nf6 4. Bc4 e6 5. Nc3 h6 ({RR} 5... a6 6. Ncxe4 Nxe4
7. Nxe4 c5 8. d3 b5 9. Bb3 Bb7 10. Qf3 Nc6 11. Bg5 Qd7 12. O-O Nd4 13. Qg4 h6
14. Bf6 h5 15. Qh4 Nxb3 16. axb3 Qc6 17. f4 gxf6 18. Nxf6+ Kd8 19. Nd5+ Kc8 20.
Ne3 {Pessi,E (2355)-Nevednichy,B (2335)/Bucharest 1996/EXT 2001/0-1 (50)}) 6.
Ngxe4 Nxe4 ({RR} 6... Be7 7. d4 Nc6 8. Be3 Bb4 9. O-O Bxc3 10. Nxc3 O-O 11. Re1
Re8 12. Qd2 a6 13. Bd3 Ng4 14. Be4 Bd7 15. Bf4 Rc8 16. Bf3 Nf6 17. Ne4 Nd5 18.
Bg3 Nce7 19. c4 Nb6 20. Nc5 Bc6 21. Nxb7 {
Andreev,D (1914)-Banev,S (1429)/Teteven 2016/CBM 173 Extra/1-0}) 7. Nxe4 Be7
$146 ({RR} 7... Nc6 8. d3 ({RR} 8. O-O a6 9. a4 Be7 10. c3 Ne5 11. Qe2 Nxc4 12.
Qxc4 Qd5 13. Qe2 Bd7 14. d4 b5 15. a5 Bc6 16. f3 O-O-O 17. Bf4 g5 18. Be5 Rhg8
19. Bf6 Qd7 20. Rad1 Bd5 21. Rfe1 Kb8 22. Bxe7 Qxe7 {
Mihalecz,a (2050)-Bihari,V/Hungary 2015/EXT 2016/1-0 (45)}) 8... Bd6 9. O-O e5
10. Qf3 O-O 11. Qg3 Nd4 12. Nc3 Nf5 13. Qf3 Nd4 14. Qd1 Qf6 15. Nd5 Qg6 16. g3
Bg4 17. f3 Bh3 18. Rf2 e4 19. dxe4 Bxg3 20. Ne7+ Kh7 21. Nxg6 Bxf2+ 22. Kxf2 {
Weiss,H-Mehl,S/Hockenheim 1994/EXT 2003/1-0 (51)}) 8. d4 c6 9. O-O Nd7 10. Qg4
Nf6 11. Qxg7 Rg8 12. Nxf6+ 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "5.3"]
[White "Anavi, David"]
[Black "Ruschukov, Boyan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1292"]
[BlackElo "1844"]
[PlyCount "89"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Bc4 Nb6 7. Bb3 Nc6 8. f4
({RR} 8. Bf4 d5 9. Ne2 g6 10. O-O Bg7 11. Bg3 O-O 12. a3 Bg4 13. f3 Bf5 14.
Nbc3 Na5 15. Nf4 Nxb3 16. Qxb3 g5 17. Nfe2 Qd7 18. Rfd1 Nc4 19. Bf2 Rac8 20.
Qa2 Rc6 21. b3 Na5 22. Rac1 Rfc8 {Tscharnuter,A (1559)-Trippold,D (1842)/
Feistritz an der Drau 2014/CBM 162 Extra/0-1 (32)}) 8... dxe5 9. dxe5 Qxd1+ 10.
Bxd1 Nb4 $146 ({RR} 10... Bf5 11. Nf3 e6 12. O-O Bc5+ 13. Kh1 Bd3 14. Re1 Bf2
15. Nc3 Bxe1 16. Nxe1 Bg6 17. Nb5 O-O 18. Nd6 Rfd8 19. Bf3 Rab8 20. Be3 Nd5 21.
Bc1 f6 22. Nc4 b5 23. Ne3 fxe5 24. Nxd5 e4 25. Ne7+ {
Gottstein,T-Von Kiedrowski,K/Baunatal 1997/EXT 1999/0-1 (35)}) ({RR} 10... g5
11. Nf3 gxf4 12. Bxf4 Nd5 13. Bg3 Ne3 14. Nc3 Bf5 15. Ke2 Bh6 16. Ba4 O-O-O 17.
Bxc6 bxc6 18. Kf2 Rd3 19. h3 Rg8 20. Ne2 Be4 21. Rhg1 Nxg2 22. Kxg2 Bxf3+ 23.
Kf2 Bxe2 24. Kxe2 Rgxg3 25. Rxg3 {Ramon Perez,J (2283)-Espineira Gonzalez,D
(2341)/Lorca 2006/CBM 113 Extra/0-1 (33)}) 11. Ne2 Nd3+ 12. Kf1 Nxc1 13. Nxc1
Bd7 14. Bf3 Rc8 15. Nc3 Nc4 16. Bxb7 Rb8 17. Ba6 Nxb2 18. Rb1 e6 19. Nd3 Rb6
20. Rxb2 Rxa6 21. Rb8+ Ke7 22. Kf2 Rb6 23. Rxb6 axb6 24. Rb1 Kd8 25. Rxb6 Kc7
26. Rb2 Be7 27. Ke3 Ra8 28. Ne4 h6 29. Nec5 Bc6 30. g4 Ra3 31. Kd2 Ra5 32. Nb3
Rd5 33. Ke3 f6 34. Rc2 Kb6 35. Nd4 Bd7 36. Rb2+ Kc7 37. Ke4 Ra5 38. f5 Ra4 39.
Rc2+ Kb6 40. fxe6 Be8 41. Ke3 Bg6 42. Rc6+ Kb7 43. exf6 Bxf6 44. Nc5+ Kb8 45.
Nxa4 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "5.5"]
[White "Ignatov, Bojidar"]
[Black "Tzonev, Kirjl"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1826"]
[BlackElo "1877"]
[PlyCount "136"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 c6 6. Be2 Be7 7. O-O O-O 8. d5
c5 9. Ne1 ({RR} 9. a3 Ne8 10. b4 g6 11. Bh6 Ng7 12. Qd2 b6 13. Rab1 Nf6 14. h3
Nfe8 15. bxc5 {1/2 Grabarczyk,M (2495)-Jakubiec,A (2518)/Griesheim 2002/CBM 088
}) 9... Ne8 10. Nd3 ({RR} 10. a3 Bg5 11. b4 Bxc1 12. Qxc1 b6 13. Nd3 g6 14. f4
Qe7 15. f5 f6 16. Qe3 Ng7 17. g4 Ba6 18. b5 Bc8 19. a4 a6 20. h4 g5 21. hxg5
fxg5 22. Kg2 h6 23. Rh1 Rf6 24. Rh3 Ne8 {Gallego Alcaraz,A (2430)-Martinez
Romero,M (2477)/Quibdo 2015/CBM 169 Extra/1-0 (64)}) 10... Bg5 11. b4 b6 $146 (
{RR} 11... Bxc1 12. Qxc1 cxb4 13. Nxb4 Qa5 14. Rb1 Nc5 15. Nd3 Nxd3 16. Bxd3 b6
17. Rb5 Qa6 18. f4 Bd7 19. Rb3 Qc8 20. fxe5 Qc5+ 21. Kh1 dxe5 22. Nd1 Nd6 23.
Ne3 f6 24. Qa3 Qxa3 25. Rxa3 Rfc8 26. Kg1 {
Osmanovic,F (2090)-Vukovic,I (2320)/Budapest 1998/EXT 2000/0-1 (64)}) 12. a4
cxb4 13. Nxb4 Bb7 14. a5 Bxc1 15. Qxc1 bxa5 16. Nc2 Nc5 17. Qe3 Nf6 18. Ra3 Rc8
19. Rfa1 a6 20. f3 Nfd7 21. Qf2 f5 22. exf5 Rxf5 23. Ne3 Rf8 24. Qe1 Qg5 25.
Ne4 Nxe4 26. fxe4 Nc5 27. Nf1 Nxe4 28. Rxa5 Rc7 29. R5a3 Rcf7 30. Rf3 Rxf3 31.
Bxf3 Nc5 32. Ra3 Bc8 33. Nd2 Bf5 34. Re3 Rb8 35. Be4 Bxe4 36. Nxe4 Nxe4 37.
Rxe4 Rb2 38. Re2 Rxe2 39. Qxe2 Qc1+ 40. Kf2 Qf4+ 41. Kg1 a5 42. h3 Qd4+ 43. Kh1
a4 44. Qa2 Qd1+ 45. Kh2 Qb3 46. Qa1 Qxc4 47. Qa3 Qxd5 48. Qxa4 Qe6 49. Qc6 Kf7
50. Qb7+ Kg6 51. Qe4+ Qf5 52. Qd5 Qf4+ 53. Kh1 Qf6 54. Qe4+ Kf7 55. Qd5+ Qe6
56. Qb7+ Qe7 57. Qd5+ Ke8 58. Qg8+ Kd7 59. Qxh7 e4 60. Qf5+ Kc6 61. Kg1 d5 62.
Qc8+ Qc7 63. Qe8+ Kc5 64. Qa4 Qb6 65. Qa3+ Kc4+ 66. Kf1 Qb1+ 67. Ke2 Qc2+ 68.
Ke3 Qc3+ 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "5.6"]
[White "Mladenov, Andrey"]
[Black "Kostov, Nikolay"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1589"]
[BlackElo "1709"]
[PlyCount "44"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e6 2. d4 b6 3. Nf3 Bb7 4. Nc3 Bb4 5. Bd3 d5 6. e5 c5 ({RR} 6... Nc6 7.
O-O Qd7 8. Ne2 Be7 9. c3 a5 10. Re1 h5 11. h4 Ba6 12. Bxa6 Rxa6 13. Bg5 Nh6 14.
Nf4 Nf5 15. Qe2 Ra8 16. Rad1 Bxg5 17. Nxg5 Nxh4 18. Nxh5 Qe7 19. Qg4 Nf5 20.
Nf3 Rd8 21. c4 {
Schwarz,D (2315)-Vojtek,V (2332)/Slovakia 2016/EXT 2017/1/2 (46)}) 7. a3 Bxc3+
8. bxc3 Nc6 $146 ({RR} 8... c4 9. Be2 Ne7 10. O-O Nbc6 11. Nd2 Qd7 12. f4 O-O-O
13. a4 Na5 14. Ba3 f6 15. Qb1 h5 16. Qb2 h4 17. Nb1 f5 18. Bd6 Rhg8 19. Na3 Ba6
20. Nb5 Kb7 21. Rfb1 Nc8 22. Bc5 Qc6 23. Bb4 {
Alexopoulos,G (2270)-Trantalis,I/Athens 1979/EXT 2004/1-0 (35)}) 9. h4 Qc7 10.
Bd2 Nge7 11. g4 cxd4 12. cxd4 O-O-O 13. Qe2 h6 14. h5 Rhf8 15. Nh4 Nxd4 16. Qe3
Ndc6 17. f4 d4 18. Qh3 f6 19. exf6 gxf6 20. g5 fxg5 21. Qxe6+ Kb8 22. Ng2 Rd6
0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "5.7"]
[White "Grabchev, Plamen"]
[Black "Georgiev, Nikolay Zh"]
[Result "0-1"]
[ECO "A06"]
[BlackElo "1623"]
[PlyCount "56"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. Nf3 d5 2. e3 Nf6 3. b3 Bf5 4. d4 e6 5. a4 Nbd7 6. Ba3 c5 7. Bb5 a6 8. Bxd7+
Nxd7 9. Ne5 Nxe5 10. dxe5 Qg5 11. O-O Be4 12. g4 h5 13. f4 Qxg4+ 14. Qxg4 hxg4
15. Rf2 g3 16. Rd2 gxh2+ 17. Rxh2 Rxh2 18. Kxh2 Bxc2 19. Nd2 Rc8 20. Rc1 Bd3
21. Rc3 c4 22. Bxf8 Kxf8 23. a5 Rc5 24. b4 Rb5 25. Nb3 cxb3 26. Rxd3 Rxb4 27.
Rd1 b2 28. Rb1 Ke8 0-1

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "6.2"]
[White "Andreev, Krasimir"]
[Black "Anavi, David"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1882"]
[BlackElo "1292"]
[PlyCount "50"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 bxc6 6. Bd3 Nf6 7. O-O O-O
8. Bg5 d6 ({RR} 8... Qe7 9. Nd2 Rb8 10. Rb1 d6 11. Qf3 Bd4 12. c3 Be5 13. Qe2
h6 14. Bh4 Bf4 15. Bg3 Bxg3 16. hxg3 d5 17. exd5 Qxe2 18. Bxe2 cxd5 19. Bd3 Re8
20. Nb3 Bd7 21. Rfe1 Rxe1+ 22. Rxe1 Kf8 23. f3 {
Pinter,G (2135)-Cselotei,I (2240)/Budapest 1998/EXT 2002/0-1 (60)}) 9. h3 ({RR
} 9. Re1 Qe7 10. Qf3 Bd4 11. c3 Be5 12. Nd2 h6 13. Bf4 Bxf4 14. Qxf4 Re8 15.
Nf3 Bd7 16. h3 Rab8 17. b3 a5 18. Bc2 Be6 19. Nd4 Qd7 20. c4 c5 21. Nb5 Red8
22. Rad1 a4 23. e5 Ne8 {
Preuss,R (1759)-Baumann,E (1638)/Germany 2016/EXT 2017/1-0 (54)}) 9... Be6 $146
({RR} 9... Rb8 10. Nd2 h6 11. Bf4 Bd4 12. c3 Be5 13. Bxe5 dxe5 14. Qc2 Nh5 15.
Nf3 Nf4 16. Rfd1 Qf6 17. Be2 Bxh3 18. gxh3 Qg6+ 19. Kf1 Qg2+ 20. Ke1 Rfd8 21.
Nxe5 Qh1+ 22. Bf1 Re8 23. Nxc6 Rxe4+ 24. Kd2 {
Tikir,H-Kavacik,A/Izmir 2006/EXT 2007/1-0}) 10. Qf3 h6 11. Be3 Bb6 12. c4 Bxe3
13. Qxe3 d5 14. e5 dxc4 15. exf6 cxd3 16. fxg7 Kxg7 17. Rd1 Bf5 18. Qe5+ Qf6
19. Qxc7 Qxb2 20. Nd2 Qf6 21. Nc4 Qg5 22. Qxc6 Bxh3 23. Nd6 Qg6 24. g3 Rac8 25.
Qd5 Rcd8 1/2-1/2

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "6.3"]
[White "Babatov, Martin"]
[Black "Kolev, Velio"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1625"]
[BlackElo "1734"]
[PlyCount "57"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 Nf6 2. c4 c5 3. e3 b6 4. Nf3 g6 5. dxc5 $146 ({RR} 5. Nc3 Bg7 6. Bd3 ({RR
} 6. Be2 {RR} O-O 7. d5 e6 8. e4 exd5 9. exd5 d6 10. h3 Re8 11. O-O a6 12. Bf4
Ra7 13. Bd3 Rae7 14. Qd2 Qc7 15. Bg5 Nbd7 16. Qf4 Nh5 17. Qc1 Nhf6 18. a4 Ne5
19. Nxe5 Rxe5 20. Qd2 Nd7 21. f4 {
Dgebuadze,A (2489)-Engelaer,M (1929)/Brasschaat 2015/EXT 2016/1-0}) ({RR} 6. d5
) ({RR} 6. b3 O-O 7. Bd3 Bb7 8. Bb2 e6 9. O-O Qe7 10. Qe2 Rd8 11. dxc5 bxc5 12.
e4 Nc6 13. Na4 Nb4 14. e5 Nxd3 15. exf6 Nf4 16. Qe3 Nh3+ 17. gxh3 Bxf6 18. Bxf6
Qxf6 19. Kg2 Rac8 20. Rad1 d6 {
Boitel,L (1995)-Green,M (1890)/Daventry 2016/CBM 173 Extra/1-0}) 6... O-O 7.
O-O d6 ({RR} 7... cxd4 8. exd4 d5 9. Bg5 dxc4 10. Bxc4 Bb7 11. Ne5 Nc6 12. Nxc6
Bxc6 13. d5 Bb7 14. Re1 a6 15. Bb3 b5 16. a3 Qd6 17. Qd2 Rfd8 18. Bf4 Qd7 19.
Rad1 Rac8 20. Bh6 Bh8 21. h3 Re8 22. Re3 {
Andersen,E-Flohr,S/Prague 1931/EXT 2000/0-1 (36)}) 8. h3 ({RR} 8. d5) 8... Nc6
({RR} 8... Nbd7 9. d5 a6 10. e4 Ne8 ({RR} 10... Rb8 11. Be3 Qc7) 11. Nh2 ({RR} 
11. Be3 Nc7 12. Qd2 b5 13. cxb5 axb5 14. Nxb5 Nxb5 15. Bxb5) 11... Nc7 12. Bg5
h6 13. Be3 e5 14. Qd2 Kh7 15. Ng4 h5) ({RR} 8... Bb7 9. d5 e5 10. Bd2 Qe7 11.
e4 Nh5) 9. d5 Na5 10. Qc2 e5 11. e4 Nh5 12. g4 ({RR} 12. Ne2) 12... Qf6 13. Kg2
Nf4+ 14. Bxf4 exf4 15. Rac1 h5 16. g5 Qe7 17. Qd2 f6 18. gxf6 Qxf6 19. Rfe1 Bd7
{Gothilf,S-Rokhlin,Y/Leningrad 1927/EXT 2014/1-0 (37)}) ({RR} 5. d5 e6 6. Nc3
exd5 7. cxd5 Bg7 8. e4 O-O 9. Bd3 d6 10. h3 Ba6 11. O-O Re8 12. Bf4 Bxd3 13.
Qxd3 a6 14. a4 Ra7 15. Nd2 Rae7 16. Rae1 Nh5 17. Bg5 f6 18. Be3 Bf8 19. Nc4 Rb7
{Polgar,Z (2565)-Agdestein,S (2600)/Oslo 1996/EXT 1998/0-1 (52)}) 5... bxc5 6.
b3 Bg7 7. Bb2 Bb7 8. g3 O-O 9. Bg2 d6 10. O-O Nbd7 11. Qe2 a5 12. Nc3 Bc6 13.
a4 Qb6 14. Nb5 Qb7 15. Ne1 Nb8 16. Bxc6 Nxc6 17. Qf3 Qd7 18. Nd3 Qg4 19. Qxc6
Qe2 20. Rad1 Qc2 21. Bxf6 Bxf6 22. Nc1 Bb2 23. Qd5 Bxc1 24. Rxc1 Qxb3 25. Ra1
Rad8 26. Rfc1 Qb2 27. Qd3 e6 28. Qc3 Qe2 29. Qxa5 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "6.4"]
[White "Tzonev, Kirjl"]
[Black "Kostov, Nikolay"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1877"]
[BlackElo "1709"]
[PlyCount "101"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 O-O 6. O-O d6 7. h3 Na5 8. Bb3
Nxb3 9. axb3 c6 10. Qe2 ({RR} 10. d4 Qc7 11. Bg5 Re8 12. Qe2 h6 13. Be3 b6 14.
b4 Bf8 15. b5 cxb5 16. Nxb5 Qb7 17. dxe5 dxe5 18. Nd2 Bd7 19. f3 Nh5 20. Qd3
Red8 21. Qb3 Nf4 22. Kh2 a6 23. Nc3 Be6 24. Qa4 Bc5 {
Goldberg,A (2330)-Dautov,R (2380)/Dresden 1986/EXT 1997/0-1}) 10... Qc7 ({RR} 
10... Ne8 11. Nh2 f5 12. f4 exf4 13. Rxf4 Nc7 14. Bd2 Ne6 15. Rxf5 Rxf5 16.
exf5 Nd4 17. Qd1 Bxf5 18. Nf3 Bf6 19. Be3 Ne6 20. Rb1 d5 21. d4 Qe8 22. Qd2 Qg6
23. Rc1 Bxh3 24. Ne1 Bf5 25. Qf2 {
Fedak,I (1328)-Badik,M (1903)/Lvov 2016/EXT 2017/0-1 (33)}) 11. Be3 b6 12. d4
Re8 $146 ({RR} 12... a5 13. Rfd1 Ba6 14. Qe1 Rfe8 ({RR} 14... c5 15. dxe5 dxe5
16. Bg5 Rae8 17. Bxf6 Bxf6 18. Nd5 Qc6 19. c4 Bc8 20. Rd3 Bd8 21. Qc3 Bc7 22.
Nh2 f5 23. f3 fxe4 24. fxe4 Bd8 25. Nf3 Qg6 26. Nxe5 Qxe4 27. Re1 Qh4 28. Rde3
Qh5 29. Nc6 {Sirbiladze,S-Kekenadze,A/Tbilisi 2001/EXT 2004/1-0 (38)}) ({RR} 
14... Rfd8 15. dxe5 dxe5 16. Na4 c5 17. Nc3 Rxd1 18. Rxd1 Rd8 19. Bg5 c4 20.
Bxf6 Bxf6 21. Nd5 Qb8 22. Nxf6+ gxf6 23. bxc4 Bxc4 24. Rxd8+ Qxd8 25. Qc3 Qd1+
26. Kh2 Qe2 27. Nd2 Be6 28. f3 h5 29. Nb3 {
Spendal,B-Grobelsek,A (2140)/Bled 2003/CBM 095 Extra/0-1 (69)}) 15. dxe5 dxe5
16. Na4 c5 17. Bg5 Bb7 18. Bxf6 Bxf6 19. c4 Rad8 20. Nc3 Qe7 21. Qe2 Bg5 22.
Nd5 Bxd5 23. Rxd5 Rxd5 24. exd5 Bh6 25. Re1 e4 26. Nd2 f5 27. Nb1 {
Nespurek,P (1800)-Ptacek,L (2128)/Czechia 2013/EXT 2016/1/2 (38)}) 13. Rfd1 Bb7
14. d5 cxd5 15. exd5 Qd7 16. Bg5 Qd8 17. Bxf6 Bxf6 18. Qe4 g6 19. Ne2 h5 20. c4
Bc8 21. Ng3 h4 22. Nf1 Bf5 23. Qe2 Qd7 24. N3h2 e4 25. Ne3 Kg7 26. Nhg4 Bxg4
27. Nxg4 Bg5 28. b4 f5 29. Ne3 Qe7 30. Rac1 a5 31. c5 Bxe3 32. Qxe3 Qe5 33.
cxb6 axb4 34. Rc7+ Kf6 35. Qh6 Re7 36. Qxh4+ Kf7 37. Rdc1 Rxc7 38. bxc7 Qe8 39.
g4 Rc8 40. gxf5 gxf5 41. Qh5+ Ke7 42. Qxf5 Qg8+ 43. Kf1 e3 44. Qe4+ Kd7 45.
Qe6+ Qxe6 46. dxe6+ Kxe6 47. fxe3 Ke5 48. Ke2 d5 49. Kd3 b3 50. h4 Kf5 51. Kd4
1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "6.5"]
[White "Ruschukov, Boyan"]
[Black "Metev, Martin"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "1844"]
[BlackElo "2062"]
[PlyCount "85"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. d4 e6 2. c4 Nf6 3. g3 d5 4. Bg2 c6 5. Nf3 Nbd7 6. O-O dxc4 7. Qc2 b5 8. b3
Nb6 $146 ({RR} 8... Bb7 9. bxc4 bxc4 10. Ba3 Bxa3 ({RR} 10... c5 11. Rd1) 11.
Nxa3 c5 12. Nxc4 Qc7 13. Nce5 Be4 14. Qa4 cxd4 15. Rac1 Qb7 16. Nxf7 Kxf7 17.
Ng5+ Kg6 18. Nxe4 Nxe4 19. Qxd4 Ndf6 20. Rc4 Rhd8 21. Qxe4+ ({RR} 21. Qe3)
21... Nxe4 22. Bxe4+ Qxe4 23. Rxe4 {
Batuev,A-Preobrazhensky,N/Leningrad 1938/EXT 2012/1-0 (40)} {RR} Kf5) ({RR} 
8... cxb3 {RR} 9. Qxc6 Rb8 10. axb3 Bb7 11. Qc2 Rc8 12. Qa2 Bd6 13. Bg5 O-O 14.
Nbd2 Qc7 15. Qb1 a6 16. Bxf6 Nxf6 17. Ng5 Bxg2 18. Kxg2 Qb7+ 19. Nde4 g6 20.
Kg1 Be7 21. Nxf6+ Bxf6 22. Ne4 Bxd4 23. Nd6 Qd7 {Dominguez Perez,L (2732)
-Quesada Perez,Y (2631)/Matanzas 2016/CBM 170 Extra/1/2 (51)}) ({RR} 8... Ba6
9. bxc4 bxc4 10. Na3 c3 11. Qxc3 Bxe2 12. Re1 Nd5 13. Qxc6 Rc8 14. Qa4 Nc3 15.
Qb3 Qb6 16. d5 Bc5 17. Qxb6 Nxb6 18. dxe6 fxe6 19. Nc2 O-O 20. Ncd4 Ba6 21. Bd2
Nbd5 22. Rxe6 Bd3 23. Re5 {
Lozano,N (2153)-Marin,A (1998)/Medellin 2015/EXT 2016/1-0}) 9. Ne5 Bb7 10. Rd1
cxb3 11. Bxc6+ Bxc6 12. Qxc6+ Nfd7 13. axb3 b4 14. Nd2 Be7 15. Ndc4 O-O 16. e4
Rc8 17. Qb5 Nxe5 18. Nxe5 Rc5 19. Qe2 Rc7 20. Bb2 Bf6 21. Ng4 Be7 22. Rd2 Qd6
23. d5 Rd7 24. Be5 Qc5 25. Rc2 Nc4 26. Rxc4 Qb5 27. Ne3 Re8 28. Rc2 Qxe2 29.
Rxe2 exd5 30. Nxd5 Bc5 31. Rd1 Rxe5 32. Nf6+ gxf6 33. Rxd7 Bb6 34. Rd5 Re6 35.
Rb5 a5 36. Rc2 Bd4 37. Rc4 Bc3 38. Rxa5 Rd6 39. Kg2 Rd2 40. Rac5 Bd4 41. Rc2
Rxf2+ 42. Rxf2 Bxc5 43. Rxf6 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "6.6"]
[White "Georgiev, Nikolay Zh."]
[Black "Ignatov, Bojidar"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1623"]
[BlackElo "1826"]
[PlyCount "73"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 Bxc3+ 7. bxc3
dxc6 8. Qxd8+ Kxd8 9. Bg5 h6 10. Bxf6+ gxf6 11. O-O-O+ Ke7 12. Bc4 Be6 13. Bb3
$146 ({RR} 13. Bxe6 fxe6 14. Rd3 Rad8 15. Rhd1 Rxd3 16. cxd3 c5 17. Kc2 e5 18.
Rf1 Rg8 19. g3 h5 20. f4 h4 21. fxe5 fxe5 22. Rg1 hxg3 23. hxg3 Rg4 24. Kd2 c4
25. Ke3 cxd3 26. Kxd3 b5 27. Ke3 c5 {
Micheel,P (1900)-Schulz,B (1680)/Rostock 1997/EXT 2001/1/2 (37)}) 13... c5 14.
Bxe6 fxe6 15. Rd2 Rad8 16. Rhd1 Rxd2 17. Rxd2 Rd8 18. Rxd8 Kxd8 19. c4 c6 20.
Kd2 b5 21. g4 e5 22. Ke3 Ke7 23. f4 Kf7 $4 (23... exf4+ $142 $11) 24. fxe5 fxe5
25. Kf3 Kg6 26. h4 b4 27. Kg3 a5 28. Kf3 a4 29. Kg3 Kf6 30. Kh3 Kg6 31. h5+ $4
(31. Kh2 $18) 31... Kg7 $4 (31... Kg5 32. Kg3 a3 $11) 32. Kh4 Kf7 33. g5 Kg7
34. gxh6+ Kxh6 35. Kg4 Kg7 36. Kf5 Kh6 37. Kxe5 1-0

[Event "180th open MGU"]
[Site "Sofia"]
[Date "2017.01.22"]
[Round "6.7"]
[White "Grabchev, Plamen"]
[Black "Mladenov, Andrey"]
[Result "0-1"]
[ECO "A30"]
[BlackElo "1589"]
[PlyCount "30"]
[EventDate "2017.01.21"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]

1. c4 c5 2. b3 d5 ({RR} 2... e6 3. g3 d5 4. Bg2 Nc6 5. e3 Nb4 6. Ba3 Qf6 7. d4
cxd4 8. exd4 Qxd4 9. Qxd4 Nc2+ 10. Kd2 Nxd4 11. cxd5 Nf6 12. Bxf8 Rxf8 13. Nc3
exd5 14. Nxd5 Nxd5 15. Bxd5 Ke7 16. Re1+ Be6 17. Nf3 {
Shimanov,A (2664)-Iskusnyh,S (2489)/Ekaterinburg 2013/CBM 155/1/2 (33)}) ({RR} 
2... e5 3. e4 Nf6 4. Nc3 d6 5. d3 Be7 6. Nd5 Nxd5 7. exd5 O-O 8. Be2 a6 9. Nf3
Nd7 10. O-O {
0-1 Cetean Onetiu,J (1652)-Cantenys Pages,C (1478)/Figueres 2016/EXT 2017}) 3.
e3 $146 ({RR} 3. cxd5 Qxd5 ({RR} 3... Nf6 4. Bb2 Nxd5 5. g3 Nd7 6. Nf3 e6 7.
Bg2 N5f6 8. O-O Be7 9. Nc3 O-O 10. Qc2 Rb8 11. Rfd1 b6 12. Rac1 Bb7 13. d4 cxd4
14. Nxd4 Bxg2 15. Kxg2 Qc7 16. Kg1 Rbc8 17. Qb1 Qb7 18. f3 {
Habibi,A (2295)-Hicker,H (2141)/Triesen 2000/EXT 2001/1/2 (58)}) 4. Nc3 Qh5 ({
RR} 4... Qd8 5. Nf3 Nf6 6. e3 e6 7. Be2 Be7 8. O-O O-O 9. Bb2 Nc6 10. Rc1 b6
11. d4 cxd4 12. Na4 Bb7 13. Nxd4 Nxd4 14. Qxd4 Qb8 15. Rfd1 Rd8 16. Qc3 Bd6 17.
h3 h6 18. Bd3 Rc8 19. Qd2 {
Peckov,K (2242)-Stanojoski,Z (2479)/Stip 2002/CBM 088 Extra/0-1 (36)}) 5. g3 a6
6. Bg2 Nf6 7. Bb2 Nc6 8. Rc1 Rb8 9. Ne4 Nxe4 10. Bxe4 e6 11. d3 f5 12. Bf3 Qh6
13. Qd2 Qg6 14. Qf4 Ra8 15. Qc7 Nd8 16. Nh3 Qf7 17. Qe5 h6 {
Horvath,M (2078)-Lamar Flores,R (2023)/Santiago de Chile 2008/EXT 2012/1-0 (60)
}) 3... Nf6 4. Bb2 g6 5. f3 Bg7 6. a4 O-O 7. Na3 Nc6 8. Nc2 Qb6 9. Na3 d4 10.
exd4 Nxd4 11. Bxd4 cxd4 12. Bd3 e5 13. Qc2 e4 14. fxe4 Nxe4 15. Bxe4 d3 0-1

