[Event "5th DUS"]
[Site "Sofia"]
[Date "2017.12.10"]
[Round "1.1"]
[White "Kononenko, Vladimir"]
[Black "Tsonev, Kiril"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1345"]
[BlackElo "1886"]
[PlyCount "62"]
[EventDate "2017.12.10"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceDate "2008.07.28"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Bd7 6. Be3 Qb6 7. Qc2 ({RR} 7. Qb3
Nh6 8. Nbd2 cxd4 9. Bxd4 Qc7 10. Bd3 Ng4 11. O-O Ngxe5 12. Nxe5 Nxe5 13. Bxe5
Qxe5 14. Qxb7 Qb8 15. Qxb8+ Rxb8 16. b3 Bc5 17. c4 dxc4 18. Nxc4 Ke7 19. Rac1
Rhc8 20. Rc2 g6 21. Rfc1 Bd4 {
Saltaev,M (2522)-Gazis,E (2307)/Aghios Kirykos 2007/CBM 119 Extra/1/2 (50)})
7... Rc8 8. Nbd2 ({RR} 8. Qb3 Qc7 9. Nbd2 Nge7 10. Be2 Nf5 11. O-O h5 12. h3
Be7 13. Rfe1 g5 14. Bxg5 Bxg5 15. Nxg5 cxd4 16. c4 Na5 17. Qa3 dxc4 18. Rac1
Bc6 19. Bxc4 Nxc4 20. Rxc4 Qe7 21. Qxe7+ Kxe7 22. Ngf3 Bd5 {
Ristanic,P (1783)-Erenda,B (2022)/Vinkovci 2016/CBM 173 Extra/0-1 (48)}) 8...
Nh6 $146 ({RR} 8... cxd4 9. Nxd4 Nxd4 10. Bxd4 ({RR} 10. Qd3 Qxb2 11. Rb1 Rxc3
12. Rxb2 Rc1# {0-1 Kloos,M-Schwingeler,W/Baunatal 1995/EXT 1998}) 10... Qxd4
11. cxd4 ({RR} 11. O-O-O Qxe5 12. Bd3 Nf6 13. Nf3 Qf4+ 14. Kb1 Qa4 15. Qe2 Bd6
16. Rhe1 O-O 17. h4 e5 18. Bc2 Qg4 19. Qe3 e4 20. Nd4 Bf4 21. Qe2 Qxe2 22. Nxe2
Bc7 23. h5 h6 24. Nd4 Bb6 25. f3 Bxd4 {
Rothermel,T (1346)-Wanie,K (2050)/Griesheim 2006/CBM 113 Extra/0-1 (33)}) 11...
Rxc2 12. b3 Bb5 13. Rd1 Ne7 14. Be2 Rxa2 15. h4 Nf5 16. Rh3 Nxd4 17. Bd3 Nxb3
18. Bc2 Nxd2 19. Rxd2 Rxc2 {0-1 Van der Zon,S-Groen,R/Netherlands 2001/EXT 2004
}) 9. Nb3 c4 10. Nc5 Nf5 11. Nxd7 Nxe3 12. fxe3 Kxd7 13. Ng5 Be7 14. Nxh7 Nxe5
15. dxe5 Qxe3+ 16. Be2 Qh6 17. Qa4+ Rc6 18. Qxa7 Kc7 19. Rf1 f5 20. exf6 gxf6
21. Nxf6 Bxf6 22. Qa5+ Kb8 23. h3 Bd8 24. Qa4 Rg8 25. Bf3 Qe3+ 26. Kd1 Qd3+ 27.
Ke1 Bh4+ 28. Rf2 Qe3+ 29. Kd1 Bxf2 30. Kc2 Qd3+ 31. Kc1 Be3# 0-1

[Event "5th DUS"]
[Site "Sofia"]
[Date "2017.12.10"]
[Round "2.1"]
[White "Tsonev, Kiril"]
[Black "Ralchev, Lachezar"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1886"]
[BlackElo "1499"]
[PlyCount "59"]
[EventDate "2017.12.10"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceDate "2008.07.28"]

1. e4 {Knaak,R} c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. g4 Bd7 6. Bd3 ({RR} 6. Nd2 c5
7. dxc5 ({RR} 7. c3 Nc6) 7... e6 ({RR} 7... Nc6 8. f4 ({RR} 8. Nb3 Nxe5 9. Qxd5
Bxg4 10. Bb5+ Nc6 11. Bxc6+ bxc6 12. Qxc6+ Bd7) 8... e6 9. Nb3 Bxc5 10. Nxc5
Qa5+ 11. c3 Qxc5) ({RR} 7... Qc7) 8. Nb3 Bxc5 9. Nxc5 Qa5+ 10. c3 Qxc5 11. Nf3
({RR} 11. Be3) 11... Ne7 12. Bd3 ({RR} 12. h5) 12... Nbc6 13. Be3 Qa5 14. Qd2 (
{RR} 14. Qc2 Rc8) 14... Ng6 ({RR} 14... d4 15. cxd4) 15. Bd4 ({RR} 15. Bxg6
fxg6) 15... Nxd4 ({RR} 15... Qc7 16. Qe3 Nxd4 17. cxd4 ({RR} 17. Qxd4 Ne7 18.
Qe3 Nc6 19. O-O-O) 17... Qb6) 16. cxd4 Qxd2+ ({RR} 16... Qb6) 17. Kxd2 Nf4 ({RR
} 17... Ne7 18. Rac1 ({RR} 18. Ke3 Nc6 19. Nd2 ({RR} 19. g5) 19... f6 20. f4)
18... a6 19. h5 Nc6 20. Ke3 f6) 18. Rac1 h5 ({RR} 18... Nxd3 19. Kxd3 Bb5+ 20.
Ke3 Kd7 21. h5 Rac8 22. Nh2 Rhf8 ({RR} 22... Rxc1 23. Rxc1 Rc8 24. Rxc8 Kxc8
25. f4 Kd7 26. g5 hxg5 ({RR} 26... Ke7 27. gxh6 gxh6 28. Ng4) 27. fxg5 Ke7 28.
h6 gxh6 29. gxh6 Kf8 30. Kf4 Kg8 31. Kg5 Bd3 ({RR} 31... Be2 32. Kf6 Bh5 33.
Nf1 Kh7 34. Ne3 Kxh6 35. Ng2) 32. Kf6) 23. f4 a5 24. Nf3) 19. Rhg1 Bc6 ({RR} 
19... Nh3 20. Rg3 ({RR} 20. Rg2 Nf4 21. Rg3 Bc6) 20... Nxf2 21. gxh5) ({RR} 
19... Rc8 20. Rxc8+ Bxc8 21. gxh5 Nxh5 22. Ke3 Bd7 23. Rc1 Kd8 24. Ng5 Rf8 25.
Be2 g6 26. Bxh5 gxh5 27. Nh7 Rg8 28. Nf6 Rg6 29. Rh1 Rh6 30. f4 Bb5 31. Rg1 Rg6
32. Rg5) 20. gxh5 Nxh5 {
Kramnik,V (2770)-Leko,P (2741)/Brissago 2004/CBM 103/[Knaak,R]/1-0 (41)} ({RR} 
20... Kf8)) 6... e6 7. Ne2 ({RR} 7. Nf3 c5 8. c3 Nc6 9. dxc5 Bxc5 10. b4 Be7
11. Bf4 Rc8 12. a3 a6 13. Nbd2 Na7 14. Rc1 Nb5 15. Qb3 Qb6 16. O-O g5 17. Be3
Qd8 18. a4 Nc7 19. h5 Kf8 20. b5 axb5 21. axb5 Kg7 {De la Riva Aguado,J (2201)
-Simon del Sol,J (1934)/La Pobla de Lillet 2017/CBM 179 Extra/1-0 (48)}) 7...
c5 8. c3 Qb6 $146 ({RR} 8... Nc6 9. f4 ({RR} 9. Nd2 cxd4 10. cxd4 Bb4 11. a3
Qa5 12. Rb1 Be7 13. b4 Qb6 14. Nb3 Qd8 15. Nf4 Bxh4 16. Ng6 fxg6 17. Bxg6+ Kf8
18. Qf3+ Bf6 19. Bg5 Be8 20. exf6 Nxf6 21. Bd3 Qe7 22. b5 Nd8 23. Bd2 Kg8 {
Lahimi,A (2074)-Sodagar,N/Hamedan 2012/EXT 2013/1-0 (37)}) ({RR} 9. Be3 Qb6 10.
b3 cxd4 11. cxd4 Nb4 12. Nbc3 Nxd3+ 13. Qxd3 h5 14. g5 g6 15. O-O Ne7 16. Ng3
Nc6 17. Na4 Qc7 18. Rfc1 Ba3 19. Rc3 O-O 20. Qe2 Kg7 21. Rb1 Bb4 22. Rc2 Rfc8
23. Nc5 Bxc5 {Nowakowski,M (2165)-Baumgart,S/Germany 1997/EXT 2002/1-0 (40)})
9... Qb6 10. Bc2 Rc8 11. b3 cxd4 12. Nxd4 Nxd4 13. cxd4 Bb4+ 14. Kf2 Ne7 15. a3
Qc7 16. Ra2 Nc6 17. Be3 a6 18. Bd3 Ba5 19. Nd2 Qb8 20. Nf3 Qa7 21. Kg3 Bb6 22.
Bb1 Ke7 23. f5 {
Ondrackova,P-Dvorakova,M/Svetla nad Sazavou 1999/EXT 2000/0-1 (48)}) 9. O-O Nc6
10. Bc2 Rc8 11. a3 Na5 12. dxc5 Qd8 13. h5 Qh4 14. Ng3 Bxc5 15. Kg2 Nc4 16. b4
Bb6 17. Rh1 Qd8 18. Re1 Bc6 19. Ba4 Bxa4 20. Qxa4+ Qd7 21. Qxd7+ Kxd7 22. a4
Ne7 23. a5 Bc7 24. f4 b5 25. Nd2 Bb8 26. Nb3 Rhd8 27. Nc5+ Ke8 28. Ne2 f6 29.
exf6 gxf6 30. Nxe6 1-0

[Event "5th DUS"]
[Site "Sofia"]
[Date "2017.12.10"]
[Round "3.1"]
[White "Todev, Simeon"]
[Black "Tsonev, Kiril"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1443"]
[BlackElo "1886"]
[PlyCount "81"]
[EventDate "2017.12.10"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceDate "2008.07.28"]

1. e4 c5 2. Nc3 Nc6 3. Bc4 e6 4. f4 a6 5. a4 d6 6. Nf3 Nf6 7. O-O Be7 8. d3 O-O
9. Qe1 d5 10. Bb3 ({RR} 10. Ba2 d4 11. Ne2 b5 12. f5 Nb4 13. e5 Nfd5 14. f6
gxf6 15. Bh6 Kh8 16. Bxf8 Qxf8 17. Bxd5 Nxd5 18. axb5 Ne3 19. Qh4 f5 20. Qh5
Qg7 21. Rf2 Nxc2 22. Ra4 Nb4 23. Nd2 Bd7 24. Qf3 Qf8 {
Gaudineau,E (2210)-Horvath,T (2395)/Val Thorens 1996/EXT 2004/0-1 (44)}) 10...
Nd4 ({RR} 10... dxe4 11. dxe4 Nd4 12. Nxd4 cxd4 13. Nd1 b6 14. e5 Nd7 15. Qg3
Nc5 16. Bc4 Bb7 17. f5 Ne4 18. Qg4 exf5 19. Rxf5 Kh8 20. Nf2 Nxf2 21. Rxf2 Qc7
22. Bd3 Qxe5 23. Bf4 Qe6 24. Bf5 Qc6 25. Be5 {
Vinklarek,O (2147)-Haase,P (2103)/Pardubice 2017/CBM 179 Extra/1-0 (55)}) 11.
e5 Nxb3 12. cxb3 $146 ({RR} 12. exf6 Nxa1 13. fxe7 Qxe7 14. Qd1 Bd7 15. b3 c4
16. Bb2 Nxc2 17. Qxc2 b5 18. dxc4 dxc4 19. Ng5 g6 20. Nce4 f6 21. Qc3 h6 22.
Ba3 Qxa3 23. Nxf6+ Rxf6 24. Qxf6 Qc5+ 25. Kh1 Qf5 26. Qe7 hxg5 {
Maleki,M-Rouillon,L/Avoine 1996/EXT 2004/1-0}) 12... Ne8 13. Qg3 f5 14. Ne2 Kh8
15. Qh3 Bd7 16. Ng5 Bxg5 17. fxg5 g6 18. Nf4 Rg8 19. Qh4 Qe7 20. Rf3 Rc8 21.
Rh3 c4 22. bxc4 dxc4 23. d4 Nc7 24. Bd2 Nd5 25. Nxd5 exd5 26. Re1 Be6 27. Bb4
Qf7 28. Qf4 Rc7 29. Bd6 Rd7 30. Rf3 Qe8 31. h3 Rf7 32. Qd2 Qxa4 33. g4 Qe8 34.
gxf5 gxf5 35. h4 Rd7 36. Qf2 Qh5 37. Kh2 Rxg5 38. Rg1 Rxg1 39. Kxg1 Rg7+ 40.
Kh2 Rg4 41. Be7 1/2-1/2

[Event "5th DUS"]
[Site "Sofia"]
[Date "2017.12.10"]
[Round "4.1"]
[White "Tsonev, Kiril"]
[Black "Markov, Daniel"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1886"]
[BlackElo "1228"]
[PlyCount "39"]
[EventDate "2017.12.10"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceDate "2008.07.28"]

1. d4 f5 2. g4 d5 3. g5 e6 4. Bg2 ({RR} 4. Nf3 c5 ({RR} 4... Nc6 5. Bf4 Bd6 6.
e3 Qe7 7. Ne5 Bxe5 8. dxe5 Qb4+ 9. Nd2 Qxb2 10. Rb1 Qxa2 11. Bd3 Nge7 12. O-O
Ng6 13. Qh5 Qa3 14. Nf3 Qe7 15. c4 Qf7 16. Qh3 d4 17. Bg3 dxe3 18. fxe3 O-O 19.
Qg2 {Faqiry,R (2013)-Soppa,C (1883)/Bad Homburg 2016/EXT 2017/0-1 (37)}) 5. c3
Nc6 6. Bg2 cxd4 7. cxd4 Bd6 {
1/2 Leniart,A (2472)-Malaniuk,V (2545)/Krakow 2013/CBM 158 Extra}) 4... c6 $146
({RR} 4... Bd6 5. f4 c6 6. Nf3 Nd7 7. e3 b6 8. Nbd2 Ba6 9. b3 Ne7 10. Bb2 Qc7
11. Ne5 Bxe5 12. fxe5 b5 13. Nf3 c5 14. Qd2 c4 15. Ba3 c3 16. Qf2 Ng6 17. Bd6
Qb6 18. h4 Rc8 19. h5 {
Bende,E (2178)-Legman,M (2025)/Hungary 2010/EXT 2011/1-0 (36)}) 5. Nf3 Be7 6.
h4 Nd7 7. Bf4 Nb6 8. Ne5 Bd6 9. e3 Qc7 10. Qh5+ g6 11. Nxg6 hxg6 12. Qxh8 Kf8
13. Bxd6+ Qxd6 14. c3 Nc4 15. b3 Nb6 16. h5 gxh5 17. Rxh5 Qe7 18. f4 Bd7 19.
Rh7 Qe8 20. Qg7# 1-0

[Event "5th DUS"]
[Site "Sofia"]
[Date "2017.12.10"]
[Round "5.1"]
[White "Cholakov, Nikolay"]
[Black "Tsonev, Kiril"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "1566"]
[BlackElo "1886"]
[PlyCount "91"]
[EventDate "2017.12.10"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceDate "2008.07.28"]

1. d4 d6 2. Nf3 Nd7 3. c4 g6 4. Nc3 Bg7 5. Bf4 c5 6. e3 Ngf6 7. h3 O-O 8. Be2
Qb6 9. Qd2 Rd8 10. O-O Nf8 11. Na4 Qc6 12. Nc3 Ne4 13. Nxe4 Qxe4 14. d5 Qf5 15.
Bd3 Qh5 16. Ng5 h6 17. Be2 hxg5 18. Bxh5 gxf4 19. Bf3 e5 20. exf4 exf4 21. Rfe1
Be5 22. Re2 Nh7 23. Rae1 f6 24. Be4 Kg7 25. Qc2 Ng5 26. f3 Rh8 27. Rd1 Nxe4 28.
fxe4 f3 29. gxf3 Rxh3 30. Rd3 Rh4 31. Qa4 Bh3 32. f4 Bd4+ 33. Rxd4 cxd4 34. Qb3
Rg4+ 35. Kh2 Rh8 36. Qxb7+ Kg8 37. Qb8+ Kg7 38. Qxh8+ Kxh8 39. Kxh3 Rxf4 40.
Kg3 g5 41. c5 d3 42. Rd2 dxc5 43. Rxd3 Rxe4 44. d6 Re8 45. d7 Rd8 46. Kg4
1/2-1/2

[Event "5th DUS"]
[Site "Sofia"]
[Date "2017.12.10"]
[Round "6.2"]
[White "Tsonev, Kiril"]
[Black "Penov, Luboslav"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1886"]
[BlackElo "1701"]
[PlyCount "31"]
[EventDate "2017.12.10"]
[EventType "swiss (rapid)"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceDate "2008.07.28"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nc3 d6 5. Qd2 h6 6. e4 ({RR} 6. h3 g5 7. Bg3
Bf5 8. e3 Ne4 9. Nxe4 Bxe4 10. Bd3 Bxd3 11. cxd3 Nd7 12. O-O e6 13. Rac1 O-O
14. a4 Nf6 15. Qb4 b6 16. Rc6 a5 17. Qc4 Ne8 18. e4 Qe7 19. Re1 Rd8 20. b3 Rd7
{Prie,E (2529)-Vaisser,A (2515)/Belfort 2010/CBM 137 Extra/1-0 (46)}) ({RR} 6.
h4 Nbd7 7. e4 Nh5 8. Be3 Ndf6 9. Nh2 Ng4 10. Nxg4 Bxg4 11. Bc4 c6 12. f3 Bd7
13. g4 Nf6 14. e5 Ng8 15. exd6 exd6 16. O-O-O d5 17. Rde1 Ne7 18. Be2 Be6 19.
f4 Qd7 20. Rhg1 Bf6 {
Pacheco,D (2279)-Shen,C (2165)/chess.com INT 2017/CBM 176 Extra/1-0 (44)}) 6...
g5 7. Bg3 Nh5 8. O-O-O Nxg3 $146 ({RR} 8... e6 9. Kb1 Nd7 10. d5 Nxg3 11. fxg3
Ne5 12. Nxe5 Bxe5 13. Be2 c6 14. Rdf1 h5 15. Nd1 Bd7 16. Ne3 b5 17. dxe6 Bxe6
18. Nf5 f6 19. Bxh5+ Rxh5 20. Ng7+ Kd7 21. Nxh5 b4 22. Ng7 Bg8 23. Nf5 {
Crouch,C (2380)-Nikolaidis,I (2530)/Ano Liosia 1996/CBM 051 Extra/0-1 (50)}) 9.
hxg3 O-O 10. Bc4 Nd7 11. e5 Nb6 12. Bb3 a5 {Äèàãðàììà #} 13. Nxg5 hxg5 14. Qxg5
a4 15. Qh5 Re8 16. Qxf7# 1-0

