[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Gordievsky, Dmitry"]
[Black "Li, Ruifeng"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2613"]
[BlackElo "2571"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,96,32,29,30,36,14,28,27,20,18,23,20,36,8,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,-12,0,0,0,0,0,0,0,0,0,0,47,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. Qc2 Nbd7 6. b3 Bd6 7. Bb2 O-O 8. Be2 a6 9. d4 b5 10. O-O {D45: Semi-Slav: 5 e3} Bb7 11. e4 (11. Rad1 Rc8 12. Rfe1 Re8 13. Bd3 h6 14. Qb1 Bb8 15. Ne2 Qa5 16. Ng3 dxc4 17. bxc4 c5 18. dxc5 Bxf3 19. gxf3 bxc4 20. Bxc4 Rxc5 {0-1 (61) Mamedyarov,S (2747)-Movsesian,S (2653) Huaian 2016}) 11... b4 12. e5 {White has an edge.} bxc3 13. Bxc3 Bc7 14. exf6 Nxf6 $146 ({Predecessor:} 14... Qxf6 15. Rfe1 a5 16. Bd3 g6 17. Ne5 Nxe5 18. dxe5 {½-½ (41) Machlik,M (2015)-Havik,V (2137) Caleta 2015}) 15. c5 a5 16. a3 Ba6 17. Bxa6 Rxa6 18. b4 Ne4 19. Rfb1 axb4 20. axb4 Qa8 21. Nd2 Nxc3 22. Qxc3 Rb8 23. Rxa6 Qxa6 24. Ra1 Qb5 25. g3 g6 26. Ra7 Rb7 27. Rxb7 Qxb7 28. Nf3 Qa6 29. Qd2 Kg7 30. Kg2 Qc4 31. h4 {With the idea h5!} h6 {The position is equal.} 32. Nh2 {[#] aiming for Ng4.} h5 33. Nf3 Qb3 34. Qg5 (34. Qe1 {keeps more tension.} Qb2 35. Qf1 e5 36. dxe5 Qxb4 37. e6) 34... f6 $1 {[%cal Rf6g5]} 35. Qe3 (35. Qd2 {feels hotter.} e5 36. dxe5 Bxe5 37. Qe1 Kh7 38. Ng5+) 35... Qxe3 36. fxe3 $11 {[%mdl 4096] Endgame KB-KN} Kf7 37. Ng1 e5 38. Ne2 Ke6 39. Nc3 exd4 40. exd4 Bd8 41. b5 cxb5 42. Nxb5 Kd7 43. Nc3 Kc6 44. Ne2 g5 45. Ng1 Ba5 46. Kf2 g4 47. Ke3 {[#] Ne2 is the strong threat.} Kd7 48. Ne2 {Strongly threatening Nf4.} Be1 {Precision: White = 71%, Black = 92%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Petrosian, Tigran L"]
[Black "Nyzhnyk, Illya"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2595"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,103,16,16,11,18,25,18,14,19,19,22,37,8,51,48,57,18,39,8,26,22,41,33,44,31,37,42,45,48,44,49,45,40,69,50,54,52,51,27,30,32,58,33,37,35,33,0,25,0,26,-11,14,14,10,16,12,0,0,0,5,5,5,5,11,11,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. c4 c6 6. cxd5 cxd5 7. Nc3 Nc6 8. Ne5 O-O 9. O-O Bf5 10. Nxc6 bxc6 11. Bf4 Nd7 {[%cal Bf6d7,Bd7e5,Be5g4][%mdl 32]} 12. Qd2 {LiveBook: 5 Games. D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5)} (12. Na4 e5 13. dxe5 Nxe5 14. Rc1 Rc8 15. b3 Re8 16. Qd2 h5 17. h3 Nd7 18. Be3 a6 19. Rfe1 Kh7 {0-1 (45) Anton Guijarro,D (2559)-Zhigalko,S (2671) Yerevan 2014}) 12... Qb6 13. Rfd1 Rfe8 14. Rac1 {White has an edge.} e5 15. dxe5 Nxe5 {[#] aiming for ...Nc4.} 16. b3 Ng4 17. Rf1 Qa6 $146 ({Predecessor:} 17... Rac8 18. h3 Nf6 19. Rfd1 Nh5 {1-0 (49) Zickus,S (2330)-Kalvaitis,S (2290) Palanga 2010}) 18. h3 Nf6 19. e3 Be4 20. Rfd1 (20. f3 {feels hotter.} Bf5 21. g4 Be6 22. Na4 Nd7 23. Bd6) 20... Bxg2 21. Kxg2 Rad8 22. Qd3 Qb7 23. Bg5 h6 24. Bxf6 $1 Bxf6 25. Na4 Bg7 26. Rc2 Rd6 27. Nc5 Qe7 28. b4 h5 29. h4 g5 30. hxg5 Qxg5 31. Rh1 {[%cal Bd1h1,Bh1h3,Bh3h4][%mdl 32]} Rg6 32. Rh3 Rh6 33. Rh4 Rg6 34. Rh3 Rh6 $1 35. Rh4 Rg6 36. Rc1 Rxe3 {The position is equal.} (36... d4 $5 {[%cal Re8e3]} 37. Rch1 dxe3 $11) 37. Qxe3 Qxh4 $1 38. Qe8+ Bf8 $1 39. Nd7 (39. a3 $5 {[%cal Rc1e1]}) 39... Qxb4 40. Rb1 Qe4+ (40... Qxb1 {keeps more tension.} 41. Qxf8+ Kh7 42. Qxf7+ Kh6 43. Qf4+ Kg7) 41. Qxe4 dxe4 $11 {[%mdl 4096] Endgame KRB-KRN} 42. Rb8 Kg7 {[#] Strongly threatening ...Bd6.} 43. Nxf8 {KRN-KR} Rd6 44. Re8 c5 45. a3 c4 46. Rxe4 c3 {Black wants to play ...Rc6.} 47. Rc4 Kxf8 48. Rxc3 Ra6 49. Kh3 Kg7 50. Kh4 Kg6 51. Rd3 f6 52. Rc3 {Precision: White = 65%, Black = 72%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Moradiabadi, Elshan"]
[Black "Gurevich, Dmitry"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2550"]
[BlackElo "2454"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,80,52,59,43,36,36,44,36,39,35,42,36,52,5,48,45,79,38,65,67,59,69,45,55,77,75,82,79,90,79,77,92,74,86,98,50,65,76,121,134,135,120,121,121,163,137,138,75,150,85,452,345,588,397,966,966,962,961,1048]} 1. Nf3 Nf6 2. c4 e6 3. d4 a6 4. Nc3 c5 5. e4 cxd4 6. Nxd4 Qc7 7. a3 b6 8. Be3 Bb7 {B41: Sicilian: Kan Variation: 5 c4} 9. f3 Be7 10. Be2 O-O 11. Rc1 d6 12. O-O Nbd7 {LiveBook: 263 Games} 13. Qd2 (13. Kh1 Rac8 14. b4 Rfd8 15. Bg1 Qb8 16. Nb3 {1-0 (50) Ponomariov,R (2712)-Wojtaszek,R (2727) Huaian 2016}) 13... Rac8 14. Rfd1 Qb8 15. Bf1 Rfe8 16. b4 Bd8 17. Kh1 Bc7 18. Nde2 $146 ({Predecessor:} 18. Bg1 Ne5 19. Rc2 h5 20. Na4 h4 21. c5 dxc5 22. bxc5 b5 23. c6 Nxc6 24. Nxc6 Bxc6 25. Rxc6 bxa4 26. Qe1 Bd8 27. Rxc8 Qxc8 28. Qxh4 Be7 29. Qe1 {½-½ (29) Dvirnyy,D (2444)-Korneev,O (2613) Pavia 2009}) 18... Ne5 (18... d5 $5) 19. Ng3 Ng6 20. Qf2 (20. Bg5 $5 {[%cal Rg5f6]} Nd7 21. Be3 $14) 20... Bc6 21. a4 h5 22. Be2 h4 23. Nf1 Ba8 24. c5 bxc5 25. bxc5 dxc5 26. Rb1 Bb7 {[#]} 27. Bxa6 $1 {[%mdl 512]} Bxa6 28. Rxb8 Bxb8 29. Bxc5 {Nb5 is the strong threat.} h3 $1 {[%cal Rh3g2]} 30. gxh3 Nf4 31. Nb5 Nxh3 32. Qe3 Bf4 33. Qa3 g5 34. Ng3 g4 35. Ne2 ({Better is} 35. Nd6 Red8 36. fxg4) 35... Be5 $16 36. Ng1 ({White should play} 36. Qe3) 36... Nf4 $2 {[%mdl 8192] [#]} (36... Red8 $16 37. Rxd8+ Rxd8) 37. Bd6 $18 Bxd6 $2 (37... Red8 {was called for.} 38. Bxe5 Rxd1) 38. Qxd6 Bxb5 $2 (38... N6h5 39. Qxa6 Rc2 40. fxg4 Nf6) 39. Qxf4 Bxa4 40. Ra1 Ra8 {Precision: White = 71%, Black = 46%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Gorovets, Andrey"]
[Black "Asaria, Danial"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2524"]
[BlackElo "2243"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,55,18,14,21,31,16,22,15,16,20,36,36,36,31,35,26,26,20,23,18,21,18,21,29,52,26,202,174,810,870,878,859,791,729,1277,1195,1114,990,29991,29992,29995,29996,29996,29997,29998,29998]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 h6 7. Bh4 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2)} Na6 (7... Be7 8. e3 O-O 9. Bd3 c5 10. Nge2 Nc6 11. O-O g5 12. Bg3 c4 13. Bf5 Nb4 14. Qb1 Bxf5 15. Qxf5 Qc8 16. Qb1 Qc6 17. Nc1 Qe6 18. a3 Nc6 19. b3 cxb3 20. Nxb3 b6 21. Qd3 Ne4 {½-½ (21) Andreikin,D (2720)-Kramnik,V (2777) Baku 2015}) 8. a3 Nc7 9. e3 {The position is equal.} Bd6 10. Bd3 O-O 11. Nf3 Re8 12. O-O Bg4 13. Bg3 Bxf3 $146 ({Predecessor:} 13... Bxg3 14. hxg3 Ne6 15. Ne5 Ng5 16. b4 Qd6 17. Rfc1 Bd7 18. Na4 {1-0 (47) Esser,P (1792)-Schipke,T (1922) Germany 2009}) 14. gxf3 Ne6 15. Kh1 Ng5 16. f4 Nge4 17. Bh4 Qd7 18. Rg1 $36 {[%mdl 2048] White has good play.} Kh8 $2 (18... Qh3 $11 19. Bxf6 Qf3+ 20. Rg2 Nxf6) 19. f3 $1 $18 {[%cal Rf3e4]} Nxc3 $2 (19... Qh3) 20. Bxf6 $1 gxf6 21. Bf5 $1 {[%cal Rf5d7]} ({Less strong is} 21. bxc3 Qe6 $14) 21... Qe7 {[#]} 22. Qf2 $1 {[%cal Rf2h4] Intending Qh4 and mate.} Nd1 {[#]} 23. Qh4 $1 {[%cal Rh4h6]} Nf2+ 24. Qxf2 {Threatening mate with Qh4.} Qf8 25. Qh4 {White mates.} Be7 26. Rg3 Bd8 27. Rag1 Rxe3 {[#]} 28. Rg8+ $1 {[%mdl 512] Precision: White = 97%, Black = 27%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Bitoon, Richard"]
[Black "Lenderman, Aleksandr"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2454"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,99,0,0,0,0,0,0,22,37,37,33,29,25,42,18,23,10,7,20,19,0,0,0,7,0,0,0,0,0,0,-27,-27,-27,-27,-36,0,0,0,0,0,0,-6,-8,0,0,0,-5,0,-3,0,-7,0,0,0,0,0,-18,-11,-89,-96,-105,-101,-198,-185,-224,-232,-235,-189,-199,-165,-142,-71,-86,-86,-82,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. g3 c5 4. Bg2 cxd4 5. O-O Bd7 6. Nxd4 e5 7. Nb3 Be6 8. Bg5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Nbd7 9. Nc3 Be7 10. f4 {[%cal Bf2f4,Bf4e5,Be5f6][%mdl 32] LiveBook: 8 Games} (10. Qd3 O-O 11. e3 Rc8 12. Rfd1 e4 13. Qb5 Qc7 14. Bf4 Qb6 15. Nd4 Bg4 {½-½ (67) Dominguez Perez,L (2732)-Navara,D (2734) Huaian 2016}) 10... d4 11. fxe5 $146 ({Predecessor:} 11. Ne4 Nxe4 12. Bxe7 Qxe7 13. Bxe4 Nf6 14. Qd3 O-O 15. fxe5 Nxe4 16. Qxe4 Bxb3 17. axb3 {½-½ (64) Amura,C (2282)-Alexandrova,O (2424) Tromsoe 2014}) 11... dxc3 12. exf6 cxb2 13. fxe7 Qb6+ 14. Nd4 bxa1=B 15. Qxa1 {Threatens to win with Rb1.} Qc5 $1 {[%cal Rc5g5]} 16. Bf4 Qxe7 17. Bxb7 O-O $1 18. Bxa8 Rxa8 19. Nxe6 Qxe6 20. Qd4 Nb6 21. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Qxe2 22. a5 Nc4 23. Qd5 Re8 24. Qd7 a6 {[#]} 25. Bd2 $1 {[%mdl 512]} Rf8 ({Weaker is} 25... Nxd2 26. Qxf7+ Kh8 27. Qf8+ $1 {[%mdl 512]} Rxf8 28. Rxf8#) 26. Bb4 $1 {[%cal Rb4f8]} Qe3+ 27. Rf2 $1 Ne5 28. Qd5 Ng4 29. Qc5 Qxc5 30. Bxc5 $11 {[%mdl 4096] Endgame KRB-KRN} Rc8 31. Re2 f6 32. Bd4 Rc4 (32... Rd8 $5 {[%cal Rd8d4]} 33. Bc3 Kf7 $15) 33. Rd2 h5 34. c3 Ra4 35. h3 Nh6 36. Bb6 $1 Ra3 37. Rc2 Nf5 38. c4 (38. g4 $11 hxg4 39. hxg4) 38... Rxg3+ $17 39. Kh2 Rd3 40. c5 (40. Bf2 $17 {was necessary.}) 40... Nd4 $19 41. Rb2 Rc3 42. Kg2 Ne6 43. Rd2 Nf4+ 44. Kf1 Rc1+ (44... g5 $142 45. Rd8+ Kf7) 45. Kf2 $17 Nxh3+ 46. Ke3 {[#]} Ng5 (46... Re1+ $1 $17 47. Kd4 Ng5) 47. Rd8+ $1 $11 {The position is equal.} Kh7 {Hoping for ...Ne6.} 48. Kd2 $1 {[%cal Rd2c1]} Rc4 {aiming for ...Nf3+.} 49. Kd3 Rc1 {...Ne6 is the strong threat.} 50. Kd2 $1 {Precision: White = 70%, Black = 60%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Bryant, John Daniel"]
[Black "Abdumalik, Zhansaya"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2443"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,87,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,17,0,6,0,3,0,23,18,33,28,32,31,29,3,53,49,50,28,56,36,31,32,33,29,34,27,37,32,72,72,91,86,84,91,83,86,166,156,172,183,175,189,185,83,89,85,219,222,1530,1425,5493,5489,29979,29980,29980,29981,29977,29964,29990,29991]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Be2 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} Ne4 {White must now prevent ...d3!} 8. cxd4 Bb6 9. O-O {The position is equal.} O-O 10. Nc3 Be6 11. Be3 f6 12. exf6 Qxf6 13. Rc1 Rad8 14. h3 {[#]} Nxc3 $146 ({Predecessor:} 14... h6) 15. bxc3 h6 $1 16. Re1 Bf5 17. Qd2 Be4 18. Nh2 {[%cal Bf3h2,Bh2g4,Bg4e3][%mdl 32]} Qd6 19. Ng4 Qg6 20. f3 Bf5 21. Kh2 a6 (21... h5 $5 {[%cal Rh5g4]}) 22. Bf4 Qf7 {Threatens to win with ...Bxg4.} 23. Bg3 h5 24. Ne3 Bg6 25. Bd3 Ne7 {[%cal Bc6e7,Be7g6,Bg6f4][%mdl 32]} 26. Rb1 Bxd3 27. Qxd3 Ng6 28. Kh1 Nf4 29. Qc2 Rd6 30. Qb3 Rfd8 31. Bxf4 Qxf4 {[#]} 32. c4 $1 {[%cal Rc4c5]} Bxd4 (32... dxc4 $16 33. Nxc4 Rxd4) 33. Nxd5 $18 Rxd5 34. Re4 Qg3 35. cxd5 Be5 {[%csl Ge5][%cal Rg3h2]} 36. Kg1 (36. d6+ $1 $18 Kf8 37. f4 Bxf4 38. Qxg3 Bxg3 39. dxc7 (39. Rxb7 Rxd6 40. Rb1 Kf7 $16) 39... Bxc7 40. Rf1+ Kg8 41. Re7) 36... Qh2+ $16 37. Kf1 {And now d6+ would win.} Rd6 {[#]} (37... Bg3 $16) 38. Qe3 $1 $18 ({Worse is} 38. Qxb7 Rg6 $17) 38... Rxd5 $2 (38... Rg6 39. Qg1 b6 40. Qxh2 Bxh2) 39. Re1 ({Less strong is} 39. Qb3 c6 $16) 39... Bf6 40. Re8+ Kf7 41. Qe6+ {White mates.} Kg6 42. Qxd5 Qh1+ 43. Ke2 Qxg2+ 44. Kd3 {Precision: White = 70%, Black = 37%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Kiewra, Keaton F"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2429"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,63,0,24,0,0,0,0,-18,-13,-18,-6,-50,-36,-60,-59,-59,-58,-56,-53,-75,-33,-38,-40,-104,-104,-100,-96,-113,-90,-89,-89,-93,-21,-21,-21,-29,-14,-18]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. O-O Nc6 8. Be3 cxd4 9. cxd4 Be7 10. Nc3 Qd6 11. h3 Bh5 12. Nb5 Qb8 {B22: Sicilian: 2 c3} 13. Ne5 Bxe2 14. Qxe2 O-O {LiveBook: 5 Games} 15. Nxc6 bxc6 16. Nc3 Nd5 17. Rac1 (17. Nxd5 cxd5 18. Rac1 Qb6 19. Rc2 Bf6 20. Qd3 {½-½ (28) Ljubojevic,L (2580)-Kasparov,G (2805) Moscow 1994}) 17... Nxe3 18. fxe3 c5 19. Kh1 $146 ({Predecessor:} 19. Rcd1 cxd4 20. exd4 {0-1 (40) Handoko,E (2470)-Wu,S (2435) Singapore 1997}) 19... Qb7 20. Qb5 Qxb5 21. Nxb5 a6 22. Nc3 Bg5 {[#] And now ...cxd4 would win.} 23. Rce1 Bxe3 24. d5 $1 Bd2 25. Rd1 (25. Re5 $15) 25... Bxc3 $1 $17 26. bxc3 {[%mdl 4096] Endgame KRR-KRR} e5 27. d6 Rfd8 28. Rd5 f6 29. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} Kf7 (29... Rac8 $17 {aiming for ...Rc6.} 30. g5 Kf7 31. gxf6 gxf6 32. Rxe5 Rxd6) 30. Rxe5 $1 $11 Rxd6 31. Rxc5 Rd2 {...Re8 is the strong threat.} 32. g5 $1 {[%mdl 32768] Precision: White = 45%, Black = 59%. . Loss on Time!?} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Paikidze, Nazi"]
[Black "Vorontsov, Pavlo"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2355"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,56,-6,21,18,20,26,38,2,0,-35,-38,-43,-20,-11,-14,-16,-41,-83,-77,-118,-103,-143,-139,-139,-140,-147,-139,-135,-141,-150,-145,-209,-202,-202,-206,-191,-210,-500,-498,-502,-504,-504,-504,-504,-504,-504,-504,-695,-695]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Bb4+ 5. Bd2 Bd6 (5... Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 c6 9. Rd1 b6 10. b3 a5 11. Bc3 Ne4 12. Ne5 Nxe5 13. Bxe4 f5 14. Bxd5 exd5 15. dxe5 f4 16. cxd5 cxd5 17. Bd4 Ba6 18. Qc6 Bxe2 {½-½ (28) Ding,L (2773)-Giri,A (2785) Moscow 2017}) 6. Bg2 {E01: Catalan: Early deviations} O-O 7. O-O Nbd7 8. Nc3 {White is slightly better.} dxc4 $146 ({Predecessor:} 8... c6 9. e4 Nxe4 10. Nxe4 dxe4 11. Ng5 e5 12. Nxe4 Be7 {1-0 (36) Froewis,G (2449)-Hellmayr,A (2252) Austria 2017}) 9. e4 {e5 is the strong threat.} e5 10. Bg5 h6 11. Bxf6 Qxf6 12. Nd5 Qd8 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Qc2 c6 16. Ne3 {[#]} b5 $1 17. Rad1 Qb6 18. Nf5 Be6 19. Kh1 Rfd8 20. Bh3 (20. f4 $17 {might work better.} Bxf5 21. exf5 Rxd1 22. Rxd1) 20... Rxd1 $19 21. Rxd1 Rd8 22. Ne7+ Kh7 23. Rxd8 $2 (23. Bxe6 {was the only chance.} fxe6 24. Kg2) 23... Qxd8 {Black is clearly winning.} 24. Nxc6 {[#]} Qd3 $1 25. Qxd3 cxd3 {[%cal Bc4d3,Bd3d2][%mdl 32]} 26. Bf1 d2 27. Be2 Bxb2 28. Nxa7 Bd7 {Precision: White = 30%, Black = 87%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Raptis, Nick"]
[Black "Kolev, Atanas"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2296"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,96,0,-6,0,0,3,0,17,17,24,28,70,0,0,0,0,0,0,0,0,-6,0,-25,-25,-14,-20,-21,-18,-21,-22,-29,-19,-15,-13,-18,-18,-8,0,-32,-25,-43,-24,-54,-49,-43,-49,-34,-19,-47,-58,-54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,143]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8. Qc2 Bb7 9. d3 Be7 10. b3 O-O 11. Bb2 c5 12. Nbd2 Nd5 {A13: English Opening: 1...e6} 13. a3 {[#]} N5b6 $146 ({Predecessor:} 13... Qb8 14. Rac1 a5 15. d4 Rc8 16. Qb1 b4 17. dxc5 Nxc5 18. Be5 Qa7 19. a4 Bf6 20. Bxf6 Nxf6 {0-1 (38) Kosten,A (2522)-Lautier,J (2672) Chartres 2005}) 14. Rfd1 Qb8 15. e4 Rc8 16. a4 {Hoping for a5.} Ra7 17. axb5 ({Better is} 17. a5 $14 Na8 18. Rac1) 17... axb5 $11 18. Rxa7 Qxa7 19. Ra1 Qb8 20. Rc1 h6 21. Qb1 Qa8 22. Ne5 Nxe5 23. Bxe5 Nd7 24. Bb2 Rd8 25. Qc2 Qb8 26. Nf3 Rc8 (26... Qd6 {looks sharper.} 27. Qc3 Bf8 28. Qc2 Ra8 29. Qb1 Be7) 27. Qe2 Bf6 28. Bxf6 Nxf6 29. Qb2 Nd7 30. Re1 Qd6 31. Bf1 Rd8 32. Qc3 Ra8 33. Ra1 Rxa1 34. Qxa1 f5 35. Qe1 b4 36. Qe3 fxe4 (36... Ne5 $15) 37. dxe4 {The position is equal.} Qd1 {Threatens to win with ...c4!} 38. Qd3 Qxd3 39. Bxd3 {[%mdl 4096] Endgame KBN-KBN} Kf8 40. Kf1 Ke7 41. Ke2 Nb8 42. Ne5 Nc6 43. Nxc6+ Bxc6 {KB-KB} 44. h4 e5 45. Ke3 g5 46. hxg5 hxg5 47. f4 exf4+ 48. gxf4 g4 {Precision: White = 61%, Black = 53%.} (48... gxf4+ $11 49. Kxf4 Bd7) 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "4"]
[White "Wang, Xiexin"]
[Black "Barcenilla, Rogelio"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "2000"]
[BlackElo "2452"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,66,13,37,34,33,26,30,15,10,5,16,2,14,-12,2,-23,6,-20,-20,-12,-2,-15,-18,-43,-35,-22,-8,-68,-40,-89,-49,-161,-145,-139,-91,-292,-322,-439,-254,-225,-224,-173,-168,-882,-882,-831,-818]} 1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 f5 6. e3 Nf6 7. Nge2 O-O 8. O-O Nc6 9. Rb1 a5 10. a3 Be6 11. Nd5 Rb8 12. b4 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} (12. Nec3 Ne7 13. Qa4 b6 14. Bd2 g5 15. f4 h6 16. e4 Bd7 17. Nxe7+ Qxe7 18. Qc2 gxf4 19. gxf4 fxe4 20. Nxe4 Nxe4 21. Bxe4 exf4 {0-1 (36) Mironov,V (2323)-Rozum,I (2581) Vladivostok 2016}) 12... axb4 13. axb4 Ne7 {[%cal Re7d5]} 14. Nxe7+ {White has an edge.} Qxe7 15. Qc2 c6 16. Bb2 $146 ({Predecessor:} 16. b5 Qd7 17. Bd2 d5 18. bxc6 bxc6 19. c5 Qa7 20. Ra1 Qd7 21. Ba5 {½-½ (21) Celis,G (2042)-Vinardi,E Buenos Aires 2001}) 16... h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 17. d4 e4 18. c5 d5 19. Bc3 h4 20. b5 Rbc8 21. bxc6 bxc6 22. Rb6 Bh6 23. Bd2 ({Don't play} 23. gxh4 $6 Ng4 $14) 23... g5 24. Qb2 (24. gxh4 $11 gxh4 25. f4) 24... Qe8 (24... h3 $5 25. Bxh3 f4 $11) 25. f4 exf3 26. Rxf3 ({White has to play} 26. Bxf3 $15 g4 27. Bg2) 26... h3 $1 $19 {[%cal Rh3g2]} 27. Bh1 Qh5 28. Nc3 $2 (28. Qc2 $17) 28... Ne4 29. Rf1 {[#]} Nxd2 (29... f4 $142 $1 {[%mdl 512]} 30. Bf3 (30. exf4 gxf4 31. Bxe4 dxe4 $19) (30. Bxe4 dxe4 31. Bc1 fxg3 $19) 30... g4 31. Bxe4 fxg3) 30. Qxd2 {[#]} f4 $1 {[%cal Rf4g3]} 31. exf4 gxf4 {[%cal Bg5f4,Bf4g3][%mdl 32]} 32. Qe2 $2 (32. Bf3 fxg3 33. Qe2) 32... Qxe2 33. Nxe2 fxg3 {Precision: White = 17%, Black = 48%.} 0-1

