[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Nyzhnyk, Illya"]
[Black "Yim, Sungho"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2612"]
[BlackElo "2373"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,99,6,8,18,17,18,18,10,29,8,18,25,25,20,26,21,37,33,40,25,27,27,41,37,44,44,33,39,53,48,48,39,47,27,45,36,38,17,0,0,0,-14,29,7,25,38,73,74,75,75,89,84,115,82,104,99,143,87,110,130,219,196,292,297,507,477,756,752,767,747,872,873,878,856,793,571,543,523,1380,805,1572,1039,1372,1320,5683,5675,5615,5216,5065,4810]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Nh5 8. Be3 (8. Bg5 f6 9. Be3 Bd6 10. Bb5 O-O 11. O-O a6 12. Ba4 Bd7 13. Ne1 Nf4 14. g3 Nh3+ {1-0 (52) Karjakin,S (2781)-Nakamura,H (2785) Stavanger 2017}) 8... Bd6 9. Ne5 {The position is equal.} g6 10. Bb5 (10. Ndf3 {with more complications.} f6 11. Ng4 O-O 12. Nh6+ Kh8 13. g3) 10... Bd7 11. Nxd7 Qxd7 12. O-O $146 ({Predecessor:} 12. g4 Ng7 13. Qf3 O-O 14. O-O-O a6 15. Bxc6 bxc6 {½-½ (46) Souza Neves,A (2163)-Quintiliano Pinto,R (2494) Florianopolis 2017}) 12... O-O 13. Nf3 Qc7 14. Re1 Ng7 15. Qe2 a6 16. Bd3 Rac8 17. Bh6 Bf4 18. Bxf4 Qxf4 19. g3 Qd6 20. Qd2 f6 21. Qh6 Nd8 22. Qh4 b5 23. a3 Nc6 24. Re2 e5 25. dxe5 $40 {[%mdl 128] White mounts an attack.} fxe5 26. Ng5 {[%csl Gg5][%cal Rh4h7]} h5 27. Rd1 Qf6 (27... Ne7 {is more complex.} 28. Qh3 Rcd8 29. Qg2 Qf6 30. h4 Kh8) 28. f4 exf4 29. Qxf4 Qxf4 30. gxf4 Rxf4 31. Bxg6 Rd8 32. h3 Rd6 33. Bb1 Kf8 {[#]} 34. Rde1 (34. Kh2 $142 $1) 34... a5 35. b4 d4 (35... axb4 $16 36. axb4 Nd8) 36. Ba2 {[%cal Rg5h7]} Rg6 (36... Rh6 {was called for.}) 37. Rg2 $18 {[%cal Rg5h7]} Rxg5 $2 (37... Rh6 38. bxa5 Nxa5 39. cxd4 Nc4) 38. Rxg5 {White is clearly winning.} dxc3 (38... axb4 $142 39. cxb4 d3) 39. Rc5 Rf6 40. bxa5 Nf5 41. Rf1 Ncd4 42. Bb1 Ke7 43. Rcxf5 Rg6+ 44. Kh2 c2 {[#]} 45. Bxc2 $1 {Rf7+ is the strong threat.} Nxc2 46. Rf7+ Ke6 47. a6 {Strongly threatening a7.} Rg8 48. Rf8 Rg7 49. R1f6+ Kd5 50. R6f7 {Precision: White = 69%, Black = 40%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Kolev, Atanas"]
[Black "Shevelev, Dmitri"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2572"]
[BlackElo "2283"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,62,7,29,16,12,27,16,14,24,0,3,7,0,0,4,9,40,10,25,10,24,15,17,0,0,0,-1,0,0,-20,-20,-34,-14,-24,0,0,0,0,-5,-5,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nbd2 f5 5. g3 Nf6 6. Bg2 Bd6 7. O-O Nbd7 8. Qc2 {A90: Dutch Defence: Miscellaneous and Modern Stonewall (with ...Bd6)} Ne4 9. Ne1 O-O 10. Nd3 Qe7 {LiveBook: 11 Games} 11. Rb1 a5 12. c5 $146 ({Predecessor:} 12. Nf3 b6 13. Bf4 Ba6 14. Bxd6 Qxd6 15. cxd5 cxd5 {1-0 (65) Riazantsev,A (2646)-Zhigalko,S (2655) Minsk 2015}) 12... Bc7 13. Nf3 {[%cal Bd2f3,Bf3e5,Be5d3][%mdl 32]} g5 14. Nfe5 {And now Nxd7 would win.} (14. b3 {keeps more tension.} g4 15. Nh4 f4 16. Nxf4 Bxf4 17. Bxf4 Rxf4 18. gxf4 Qxh4 19. Bxe4 dxe4 20. Qxe4 Qh6 21. f3) 14... Nexc5 15. Nxc5 Nxc5 16. Bxg5 Qxg5 17. Qxc5 Qf6 (17... Qg7 {is more complex.} 18. f4 Bd7 19. e3 b6 20. Qc2 Rfc8) 18. Qc3 (18. f4 {feels hotter.} Rd8 19. Qc3 Bd6 20. Bf3 Bd7 21. Rbc1) 18... Bd6 (18... Bxe5 $5 19. dxe5 Qe7 $11) 19. Nd3 Qe7 20. a3 a4 21. e3 Bd7 22. Nc5 b6 23. Nxd7 Qxd7 24. Rfc1 c5 {[%cal Bc6c5,Bc5c4][%mdl 32]} 25. b3 axb3 26. Rxb3 c4 27. Rxb6 {The position is equal.} Rxa3 28. Qc2 Rfa8 29. Rcb1 Ra1 30. Bf1 Rxb1 (30... Bc7 $5 {[%cal Rc7b6]} 31. R6b2 Rxb1 32. Qxb1 Qc8 $15) 31. Qxb1 Rc8 {Precision: White = 49%, Black = 37%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Li, Ruifeng"]
[Black "Breckenridge, Steven James"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2571"]
[BlackElo "2239"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,95,15,33,0,0,-9,-14,-37,6,14,17,10,22,0,0,0,0,0,0,0,14,5,22,11,36,32,31,32,58,35,31,28,39,30,45,13,27,21,25,25,43,60,51,-26,73,70,200,175,241,239,227,231,624,619,577,583,684,662,871,642,1070,1036,1048,1023,976,954,1666,866,1062,1050,1025,1021,995,995,992,980,3103,1991,29976,29977,29975,29976]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 a6 6. Nbd2 O-O 7. Bb3 d6 8. h3 Be6 9. Nf1 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} Bxb3 10. axb3 d5 11. Qe2 {The position is equal.} dxe4 12. dxe4 Qd6 13. Ng3 Rad8 {[#]} 14. O-O $146 ({Predecessor:} 14. b4 Bb6 15. Nd2 Ba7 16. Nc4 Qe6 {1-0 (59) Bauer,C (2626)-Fressinet,L (2646) Aix les Bains 2007}) 14... h6 15. b4 Bb6 16. Be3 Bxe3 17. Qxe3 Qe6 18. Rfd1 Rd7 19. Rxd7 Nxd7 20. Rd1 Nb6 21. Nf5 Qa2 22. N3h4 {[#] Threatening mate with Qg3.} Qe6 $1 23. Qg3 {[%csl Gf5][%cal Rg3g7]} Qf6 24. Nf3 Re8 25. b3 Kh7 26. Nh2 h5 27. Nf3 g6 28. Ng5+ Kh8 29. Nh6 ({White should play} 29. Ne3 $1 $14) 29... Rf8 (29... Re7 $1 $11) 30. Rd3 {[%cal Bd1d3,Bd3f3,Bf3f7][%mdl 32] [#] Black must now prevent Rf3.} Qg7 (30... Qe7 $1 $14) 31. Qe3 $18 Qf6 (31... Nc8 $142) 32. Qc5 $40 {[%cal Rc5f8][%mdl 128] White goes for the king.} Qg7 33. Rf3 Qxh6 $2 (33... f5) 34. Nxf7+ Rxf7 35. Rxf7 Kg8 36. Rxc7 Qc1+ 37. Kh2 Qf4+ 38. g3 Qxe4 39. Qxb6 {[%mdl 4096] Endgame KQR-KQN} Qf5 40. Rxb7 h4 41. Qe3 hxg3+ 42. Qxg3 e4 43. Kg2 Ne5 44. Re7 Nf7 45. Qg4 Qf6 46. Re6 Qf3+ 47. Qxf3 exf3+ 48. Kg3 {Precision: White = 73%, Black = 45%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "De Firmian, Nick E"]
[Black "Wang, Xiexin"]
[Result "1/2-1/2"]
[ECO "C19"]
[WhiteElo "2492"]
[BlackElo "2000"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,119,-1,-4,27,0,90,-5,10,-5,-5,-9,0,7,9,5,8,0,0,0,0,0,0,-13,0,-95,-53,-66,-45,-45,-45,-46,-52,-52,-52,-67,-52,-67,-67,-67,0,-67,-40,-60,-60,-139,-70,-102,-57,-54,-56,-93,-52,-52,0,-96,0,-71,-72,-83,0,0,62,62,62,62,62,62,62,62,62,75,75,75,105,75,107,105,105,105,166,152,150,141,260,104,93,-134,-147,-214,-214,-205,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Bd7 8. Be2 Ba4 9. O-O {LiveBook: 16 Games} Nbc6 {C19: French: 3 Nc3 Bb4: Main line: 7 Nf3 and 7 a4} (9... Qc7 10. Rb1 Nd7 11. Bd3 c4 12. Be2 O-O 13. Nh4 f6 14. Bg4 f5 15. Bf3 Nb6 16. g3 Be8 17. Ng2 {½-½ (36) Baranowski,T (2483)-Szczepanski,Z (2555) ICCF email 2009}) 10. Rb1 Qc7 (10... b6 $11) 11. Re1 ({White should try} 11. dxc5 $16 a6 12. Bd3) 11... c4 12. Ng5 h6 13. Nh3 $146 ({Predecessor:} 13. Nf3 O-O-O 14. Rb2 Rdf8 15. Bf1 f5 16. exf6 Rxf6 17. Qe2 Rhf8 18. g3 Rxf3 {0-1 (18) Schirmer,M (2158)-Seidel,M (2211) DESC email 2001}) 13... O-O-O 14. Nf4 g6 15. g3 Nf5 {[%cal Be7f5,Bf5g7,Bg7e8,Be8c7][%mdl 32]} 16. Bf1 Qe7 17. Bg2 Ng7 18. Bf3 Kb8 19. h3 g5 20. Ng2 (20. Nh5 $11 Nxh5 21. Bxh5) 20... f5 21. Be2 Ne8 22. Bd2 Nc7 23. Qc1 Rdf8 24. Kh2 Rhg8 25. Rg1 b6 (25... h5 $5) 26. Qb2 Qh7 27. Rbf1 Qe7 ({Black should play} 27... h5 $15) 28. f3 (28. Rb1 $11) 28... Kb7 29. Rh1 Rf7 30. Kg1 ({Better is} 30. f4 $15) 30... Rfg7 (30... f4 $1 $17 31. g4 Rff8) 31. Kf2 {[#]} f4 $1 {[%mdl 512]} 32. gxf4 gxf4 33. Rfg1 $1 Qf7 34. Nxf4 Qf5 (34... Ne7 $15) 35. Bd1 (35. Rg4 $11 {keeps the balance.}) 35... a5 (35... Rxg1 $1 $17 36. Rxg1 Rxg1 37. Kxg1 Qg5+ 38. Kh1 Ne7) 36. Ng2 (36. Rg4 $11 {remains equal.}) 36... Nb5 $17 37. Ne3 Rxg1 (37... Qf8 $17) 38. Rxg1 $11 Rxg1 (38... Qf7 $11) 39. Nxf5 $14 Rxd1 40. Ke2 Rh1 41. Nxh6 Rh2+ 42. Ke3 Rxh3 43. Nf7 Rh1 44. Kf4 $1 Nc7 45. Kg3 Ne7 46. Kg2 Rd1 47. Bg5 Nf5 (47... Nc6 $16 {might work better.} 48. Be3 Nb5) 48. Bd8 Rd2+ 49. Kh3 $1 {Nd6+ is the strong threat.} Rxc2 (49... Rd1 $16 50. Nd6+ Nxd6) 50. Qa1 (50. Qb1 $1 $18 {is the precise move to win.}) 50... Nb5 $16 {[#]} 51. Bf6 $2 (51. Nd6+ $1 $16 Nfxd6 52. exd6 Nxc3 53. Bf6) 51... Rxc3 $17 52. Nd8+ (52. Kg4 $17 {was necessary.}) 52... Ka6 $19 53. Nxe6 {White wants to play Nc7+.} Rd3 $2 (53... Rxa3 54. Qg1 $15) (53... Rxf3+ $19 54. Kh2 Rd3) 54. Qg1 $1 $11 {[%cal Rg1g8] And now Qg8 would win.The position is equal.} Nbxd4 (54... Nfxd4 55. Qg8) 55. Qg8 $1 {[%cal Rg8a8] Qa8+ would kill now.} Bc6 {White must now prevent ...Nxe6.} ({Weaker is} 55... Nxf3 56. Qa8+ Kb5 57. Qe8+ Ka6 {[#]} 58. Nc5+ $1 {[%mdl 512]} Ka7 59. Qf7+ Ne7 60. Qxe7+ Bd7+ 61. Qxd7+ Kb8 62. Qb7#) 56. Nc7+ Kb7 57. Qh7 Rxf3+ 58. Kh2 Rd3 59. Nb5+ Ka6 60. Nc7+ {Precision: White = 45%, Black = 36%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Vorontsov, Pavlo"]
[Black "Lin, Andy"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2492"]
[BlackElo "2147"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,14,8,24,41,19,24,21,19,23,0,0,0,25,22,39,14,16,-9,18,16,34,33,38,19,18,0,0,0,42,0,0,0,4,14,141,141,141,141,141,153,152,143,158,157,534,531,524,484,6227,6103,29939,11906,29973,29972,29961,12849,2799,831,1475,651,29976,736,29984,29980,29980,29981,29994,29995]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 Bf5 4. e3 e6 5. c4 Bxb1 6. Rxb1 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Bb4+ 7. Ke2 {LiveBook: 18 Games} dxc4 8. Qa4+ $1 {White has an edge.} Nc6 9. Ne5 Nd5 10. Nxc6 Qd7 $1 11. g3 $146 ({Predecessor:} 11. Rc1 bxc6 12. Rxc4 Rb8 13. Qxc6 Nxf4+ 14. exf4 {½-½ (26) Karjakin,S (2773)-Wei,Y (2696) Bilbao 2016}) 11... bxc6 12. Bg2 {Threatens to win with Bxd5.} Be7 13. h4 $1 ({Don't play} 13. Qxc4 g5 $15) 13... c3 14. Bxd5 (14. Rhc1 {seems wilder.} Rb8 15. b3 O-O 16. Bxd5 Qxd5 17. Rxc3 c5 18. Rbc1) 14... cxd5 15. Qa5 cxb2 (15... c2 {looks sharper.} 16. Rbc1 c5 17. Rxc2 f6 18. Rhc1 O-O) 16. Rxb2 Bd6 17. Bxd6 cxd6 18. Rc1 $36 {[%mdl 2048] White has good play.} O-O 19. Rc7 Qd8 20. Rbb7 a6 21. Qa4 {[%mdl 1024] White has compensation.} g5 22. h5 Qf6 23. g4 Kg7 {[#]} (23... Rae8 $11 {remains equal.}) 24. Qc6 $1 $16 Rab8 25. Qxd6 {Strongly threatening Rxf7+!} Rxb7 26. Rxb7 {[%mdl 4096] Endgame KQR-KQR} a5 27. a4 Rc8 28. Rc7 Rb8 $2 {[#]} (28... Ra8 $16 {is a better chance.} 29. Rc5 Ra7) 29. Rxf7+ $1 $18 {[%mdl 512]} Qxf7 30. Qxb8 {KQ-KQ} Qd7 (30... h6 $142 31. Qb6 Qd7 32. Qxa5 Kf7) 31. Qe5+ Kf7 32. Qh8 Qxa4 33. Qxh7+ Ke8 34. h6 Qb5+ 35. Qd3 (35. Kf3 $142 Qc4 36. Qg6+ Kd7 37. Qxg5) 35... Qb2+ 36. Kf3 (36. Kf1 $142 Qb7 37. h7) 36... Kf8 37. Qa6 (37. Qh7 $142 Qc1 38. Kg2 Qd1 39. Qg7+ Ke8 40. Qxg5 Qb1 41. Qg8+ Ke7 42. h7 Qe4+ 43. Kg3) 37... Qd2 38. Qxe6 {White mates.} Qd1+ 39. Kg2 a4 40. h7 {[%mdl 32768] Precision: White = 67%, Black = 25%. . An unexpected result.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "He, Xuhao"]
[Black "Corrales Jimenez, Fidel"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2316"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "27"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,18]} 1. e4 {Predecessor:} e6 $146 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 c5 6. Ne2 Nc6 7. Be3 Nd5 8. Bxd5 Qxd5 9. Nbc3 Qxg2 10. Rg1 Qf3 11. Nb5 Rb8 12. dxc5 Bd7 13. Nc7+ Kd8 14. Nb5 {0-1 (54) Kramnik,V (2808)-Caruana,F (2808) Stavanger 2017} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Feng, Maggie"]
[Black "Petrosian, Tigran L"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2298"]
[BlackElo "2595"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,18]} 1. Nf3 {Predecessor:} e6 $146 2. d4 f5 3. g3 Nf6 4. Bg2 d5 5. c4 Bd6 6. Nc3 c6 7. Bf4 Bxf4 8. gxf4 O-O 9. e3 Nbd7 10. Qb3 b6 11. Ng5 Nb8 12. O-O-O Kh8 13. Kb1 Qe7 14. Rc1 h6 15. Nf3 Nbd7 16. cxd5 cxd5 17. Ne5 Nxe5 18. fxe5 {0-1 (44) So,W (2812)-Carlsen,M (2832) Stavanger 2017} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Asaria, Danial"]
[Black "Bitoon, Richard"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2243"]
[BlackElo "2454"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,85,32,37,69,58,296,310,296,307,304,293,305,295,277,298,321,322,285,305,330,316,300,217,244,233,224,220,229,142,243,243,285,276,300,287,315,312,349,324,405,342,476,472,488,377,481,484,461,456,514,512,497,485,646,619,1240,1140,1280,877,868,857,5412,4937]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 e6 6. O-O d6 7. d4 Nb6 8. Bb3 cxd4 9. cxd4 dxe5 10. dxe5 Qxd1 11. Rxd1 Be7 12. Nc3 {[%cal Bb1c3,Bc3b5,Bb5c7][%mdl 32]} O-O 13. Be3 Nd7 {B22: Sicilian: 2 c3} 14. Nb5 {Black must now prevent Nc7.} (14. Bf4 Nc5 15. Bc2 Bd7 16. a3 a5 17. Be3 Rfd8 18. Ne4 Nxe4 19. Bxe4 Be8 20. Bb6 Rxd1+ 21. Rxd1 {1-0 (42) Vlassov,N (2466)-Poluljahov,A (2516) chessassistantclub.com INT 2004}) 14... Ndxe5 $2 {[#]} (14... Bc5 $14) 15. Nxe5 $18 Nxe5 {White has a decisive advantage.} 16. Nc7 Rb8 17. Bxa7 Nc6 $146 ({Predecessor:} 17... Bd7 18. Bxb8 Rxb8 19. f4 Rc8 20. Rac1 Bd8 21. fxe5 Bxc7 22. Rxc7 Rxc7 23. Ba4 g5 24. Rxd7 {1-0 (24) Rajcsanyi,Z (2100)-Medvegy,N (2185) Hungary 1991}) 18. Bxb8 Nxb8 19. Ba4 Bf6 20. Rac1 Bxb2 21. Rc2 Be5 22. Ne8 Nc6 23. Nd6 Rd8 24. Bxc6 bxc6 25. Rxc6 Bb7 26. Rc7 Ba6 (26... Bd5 $16 {is a better defense.}) 27. Ra7 Bc4 28. g3 h5 29. Rc1 Rxd6 30. Rxc4 {[%mdl 4096] Endgame KRR-KRB} g5 31. Rc5 Rd1+ 32. Kg2 Bd4 33. Rxg5+ Kf8 34. Ra8+ Ke7 35. Ra3 {White is clearly winning.} Rd2 36. Rf3 h4 37. gxh4 Rxa2 38. h5 {[%cal Bh4h5,Bh5h6][%mdl 32]} f5 39. h6 Kf6 40. Rg8 Ra7 41. Rfg3 Rh7 42. R3g6+ Kf7 43. h4 {Precision: White = 92%, Black = 33%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Mousseri, Daniel"]
[Black "Gordievsky, Dmitry"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2233"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,56,13,14,9,25,11,9,0,0,0,0,-16,0,0,7,0,0,0,0,0,0,-34,-18,-55,0,0,0,0,-11,-98,-83,-83,-54,-214,-141,-171,-170,-164,-164,-1329,-1250,-29996,-29997]} 1. e4 c5 2. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b3][%mdl 32]} e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Bb4 7. Bd2 Nf6 8. Bg2 Nc6 {[%cal Bb8c6,Bc6e5,Be5c4][%mdl 32]} 9. Nb3 {B43: Sicilian: Kan Variation: 5 Nc3} Be7 10. O-O d6 11. a4 {The position is equal.} (11. f4 O-O 12. Be3 b5 13. a3 Bb7 14. g4 Rfe8 15. g5 Nd7 16. Qh5 g6 17. Qh4 b4 18. Ne2 bxa3 19. bxa3 Na5 20. Nxa5 Qxa5 21. Rf3 Rac8 {0-1 (55) Guseinov,G (2634)-Gajewski,G (2654) Berlin 2015}) 11... Ne5 12. f4 $146 ({Predecessor:} 12. Kh1 Nc4 13. Bc1 Bd7 14. Nd4 Rc8 15. f4 h6 16. h3 Nh7 {½-½ (53) Jurcik,M (2378)-Gerbery,R (2179) Slovakia 2011}) 12... Nc4 13. Bc1 O-O 14. Qe2 Rb8 15. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} b5 16. axb5 axb5 17. g5 Nd7 18. Rf3 Re8 19. Bf1 d5 (19... Qb6+ $15 20. Qf2 Bb7) 20. exd5 $11 exd5 21. Nxd5 Bc5+ 22. Kh1 (22. Nxc5 $11 {remains equal.} Qxc5+ 23. Ne3) 22... Qd8 {[%mdl 1024] Black has strong compensation.} 23. Qd1 Bb7 {Threatens to win with ...Ndb6.} 24. Rd3 $2 (24. Bg2 $1 $15) 24... Bf2 $36 {[%mdl 2048] Black is on the roll.} 25. Qf3 {[#]} Nde5 $1 {[%mdl 512]} 26. fxe5 Nxe5 27. Qxf2 $2 (27. Nf6+ gxf6 28. Qxb7 Qxd3 29. Qxf7+ Kxf7 30. cxd3) 27... Nxd3 $19 28. cxd3 Qxd5+ {Precision: White = 24%, Black = 60%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "1"]
[White "Yanayt, Eugene"]
[Black "Moradiabadi, Elshan"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2182"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,107,20,34,34,47,32,95,88,116,138,133,39,56,37,34,27,53,32,67,39,49,50,38,52,50,46,49,49,52,45,48,35,58,27,58,49,72,74,76,72,102,95,104,111,148,126,166,173,164,70,66,81,80,68,82,35,29,31,28,24,512,468,515,496,495,412,599,597,585,575,707,706,704,702,809,801,902,842,804,742,951,922,950,927,887,885,2314,1938,12842,12843,12843,12843,12844,12837,12845,12845]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 g6 6. O-O Bg7 7. Nc3 O-O 8. d5 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6)} exd5 9. cxd5 b5 $146 (9... Re8 $14) ({Predecessor:} 9... Re8 10. Nd4 c5 11. dxc6 dxc6 12. Bf4 Nh5 13. Be3 Qd7 14. Nb3 Qe7 15. Qd2 Nd7 {0-1 (70) Inarkiev,E (2732)-Hou,Y (2658) Petropavlovsk Kamchatsky 2016}) 10. Qb3 $16 {White is better.} b4 11. Qxb4 Bxd5 12. e4 (12. Bg5 $16 Bc6 13. Qh4) 12... a5 $14 13. Qa4 Bc6 14. Qc2 Na6 15. Rd1 Qc8 16. Nd4 Bb7 17. Bf4 Re8 18. Rac1 d6 19. Ndb5 Bf8 20. Nd5 Nxd5 21. exd5 {[%cal Rb5c7]} Qd7 22. Nc3 $36 {[%mdl 2048] Black is under pressure.} Bg7 23. a3 Rab8 24. Bf1 {Hoping for Bb5.} Bc8 25. Na4 Bb7 26. b3 h6 27. Qd2 g5 28. Be3 Ra8 {[%cal Bb8a8,Ba8a3,Ba3b3,Bb3b2][%mdl 32]} 29. Qxa5 {aiming for Bb5.} Re7 30. Qd2 Qf5 31. b4 ({White should try} 31. Bg2 $18) 31... Nb8 32. Nc3 {[%cal Ba4c3,Bc3b5,Bb5c7,Bc7e8,Be8d6][%mdl 32]} Rxa3 33. Nb5 Rb3 34. Rxc7 Rxc7 35. Nxc7 Rb2 36. Qc1 {Strongly threatening Ne8.} Nd7 $2 {[%mdl 8192]} (36... Rxb4 $11 37. Qa3 Rb2) 37. Ne8 $18 Be5 {[#]} 38. Nxd6 $1 {[%mdl 512]} Bxd6 39. Qxb2 Bxd5 (39... Ne5 $142 40. Bg2 Nf3+ 41. Kh1 Bxd5) 40. Qd4 {White is clearly winning.} Nf6 {...Qf3 is the strong threat.} 41. Bg2 Bxg2 42. Kxg2 Be5 43. Qd3 Qe6 44. b5 Ng4 45. h3 Nf6 46. Kh2 Ne4 47. Qd8+ Kh7 48. Qd5 Qf5 {[#]} 49. f4 $1 gxf4 50. Bxf4 Nf2 51. Qxe5 Qxh3+ 52. Kg1 Nxd1 53. Qd5 Qe6 54. Qxe6 {Precision: White = 75%, Black = 40%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Gordievsky, Dmitry"]
[Black "Marrero Lopez, Yaniet"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2613"]
[BlackElo "2242"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,114,110,155,151,159,120,117,115,114,105,198,200,190,194,206,207,222,226,220,217,234,229,213,213,244,248,244,228,228,238,249,242,336,332,538,534]} 1. Nf3 Nf6 2. g3 b5 3. d3 d5 4. Bg2 Bb7 5. O-O e6 6. c4 dxc4 {A05: Réti Opening: 1 Nf3 Nf6} (6... a6 7. cxd5 Nxd5 8. a4 Be7 9. Nc3 O-O 10. axb5 Nxc3 11. bxc3 axb5 12. Rxa8 Bxa8 13. Qb3 Bc6 14. Be3 {½-½ (57) Short,N (2670)-Hou,Y (2649) Hoogeveen 2016}) 7. dxc4 Qxd1 8. Rxd1 b4 9. Bf4 {LiveBook: 6 Games} Nbd7 10. Bxc7 Rc8 11. Bf4 Bxf3 12. Bxf3 e5 13. Be3 $146 ({Predecessor:} 13. Bg5 Rxc4 14. Nd2 {1-0 (31) Romanishin,O (2515)-Meyner,H (2114) Kerkyra 2009}) 13... Rxc4 (13... Bc5 $16 {keeps fighting.}) 14. Nd2 $18 ({Don't take} 14. Bxa7 $6 Rc7 $16) 14... Rc7 15. Rac1 Rxc1 16. Rxc1 Nb6 17. Rc7 {Bc6+ is the strong threat.} Nfd5 18. Bxd5 Nxd5 19. Rxa7 Nxe3 20. fxe3 {[%mdl 4096] Endgame KRB-KRN} h5 21. Nc4 Rh6 22. Ra8+ ({Resist} 22. Nxe5 $6 Bc5) 22... Ke7 23. Nxe5 Re6 24. Nd3 Rb6 25. Nf4 Rb5 $2 {[#]} (25... Rd6 26. Rb8 g5) 26. e4 {Precision: White = 93%, Black = 48%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Kiewra, Keaton F"]
[Black "Atoufi, Pedram"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2429"]
[BlackElo "2281"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,107,33,-17,16,-19,0,0,-7,-7,11,4,21,20,21,0,37,43,43,25,33,40,35,29,34,24,50,49,51,43,70,70,70,76,71,48,58,56,75,37,55,48,61,16,83,6,9,31,54,16,15,0,0,0,10,0,0,0,0,0,0,0,0,0,74,54,111,112,92,90,96,0,17,22,21,24,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d6 4. f3 Nf6 5. Nc3 Nbd7 6. e4 e5 7. Be3 c6 8. Qd2 Be7 9. Nge2 O-O 10. g4 b5 {B07: Pirc Defence: Miscellaneous Systems} 11. Ng3 (11. g5 Ne8 12. f4 b4 13. Nd1 exf4 14. Bxf4 d5 15. exd5 cxd5 {1-0 (55) Ponkratov,P (2624)-Goganov,A (2609) Khanty-Mansiysk 2014}) 11... exd4 12. Bxd4 b4 13. Nd1 Ne5 14. Be2 c5 15. Bxe5 dxe5 16. Qxd8 Bxd8 $146 (16... Rxd8 {looks sharper.} 17. Ne3 Be6 18. h4 Nd7 19. Ngf5 Bf8) ({Predecessor:} 16... Rxd8 17. Ne3 a5 18. Nc4 {1-0 (93) Athanasiadis,M (2025)-Bognar,C (2217) Chalkidiki 2016}) 17. Ne3 Ne8 {[%cal Bf6e8,Be8c7,Bc7e6,Be6d4][%mdl 32]} 18. Bc4 Nc7 19. h4 Ne6 20. Kf2 Nd4 21. g5 Kh8 22. c3 Ne6 23. Ngf5 Nf4 24. Nd6 $1 {[%cal Rd6f7]} Be6 25. Bxe6 Nxe6 26. Ndc4 f6 27. gxf6 Bxf6 28. Rad1 Rad8 29. Rxd8 Rxd8 30. Nd5 h5 (30... Nf4 $11 {remains equal.}) 31. Kg3 (31. cxb4 $16 {With the idea b5.} cxb4 32. Nxb4) 31... bxc3 $11 32. bxc3 Nf8 33. Rb1 {Black should prevent Nce3.} Ng6 34. Nxf6 gxf6 {[%mdl 4096] Endgame KRN-KRN} 35. Rb7 Nf4 36. Kf2 Rd3 37. Rxa7 Nh3+ 38. Ke1 Rxc3 39. Nb6 Rxf3 40. a4 f5 (40... Nf2 $11 {keeps the balance.}) 41. exf5 $16 {Strongly threatening a5.} e4 $1 42. a5 {Threatens to win with Re7.} Nf4 {[#]} 43. Re7 $1 {Black must now prevent a6.} e3 {[#]} 44. a6 (44. Nd7 $1 $16 {[%cal Rd7f6] Intending Nf6 and mate.} Rh3 45. Kd1 e2+ 46. Kc2) 44... Ng2+ 45. Ke2 Rf2+ 46. Kd3 Ra2 $1 {aiming for ...e2.} 47. a7 e2 {The position is equal.} 48. Rxe2 Nf4+ 49. Ke4 Nxe2 50. a8=Q+ Rxa8 51. Nxa8 c4 52. Nb6 Ng3+ 53. Kd4 Nxf5+ 54. Ke4 {Precision: White = 53%, Black = 68%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Schmakel, Sam A"]
[Black "Asaria, Danial"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2344"]
[BlackElo "2243"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,63,17,39,28,27,15,34,32,34,63,118,102,110,84,96,113,453,447,652,646,624,295,286,302,293,211,192,201,302,290,277,178,532,528,622,623,616,520,802,593,579,579,580,575,785,785,779,775,770,754,764,739,854,845]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qe2 {B94: Sicilian Najdorf: 6 Bg5 Nbd7} (7. Bc4 Qb6 8. O-O Qc5 9. Bd5 e6 10. Re1 Be7 11. Be3 Qa5 12. Bxe6 fxe6 13. Nxe6 Nc5 14. b4 Qxb4 15. Nc7+ {1-0 (53) Wei,Y (2706)-Van Wely,L (2695) Wijk aan Zee 2017}) 7... Qc7 8. O-O-O h6 9. Bh4 {White is slightly better.} b5 10. f4 e5 {[#]} (10... b4 $14 11. Nd5 Nxd5 12. exd5 Bb7) 11. Nd5 $1 $16 {[%cal Rd5c7]} Nxd5 12. Ne6 $146 ({Predecessor:} 12. exd5 Bb7 13. Ne6 Qb8 14. Qg4 g6 {1-0 (27) Levrand,R (2097)-Koci,V (1636) Marianske Lazne 2016}) 12... Qa5 13. exd5 $40 {[%mdl 128] White wants a kill.} Bb7 $2 {[%mdl 8192]} (13... g5 $16 {is a better chance.}) 14. Qe1 $18 Qb6 (14... b4 $142 15. Qxb4 Qb6 16. Qxb6 Nxb6) 15. Bf2 Nc5 16. Nxf8 (16. Nxc5 $142 {Hoping for Ne6.} dxc5 17. Qxe5+ Kd8 18. d6) 16... Qc7 17. fxe5 Kxf8 18. exd6 Qxd6 19. Bg3 Qg6 (19... Qe7 $142 20. Qxe7+ Kxe7) 20. Qb4 Rc8 21. Bd3 Qb6 $2 (21... Qg5+ {is tougher.} 22. Bf4 Qf6) 22. Bf5 {White is clearly winning.} a5 23. Qf4 Rd8 24. Qc7 Na4 (24... Qxc7 $142 25. Bxc7 Ke7 26. d6+ Kf6) 25. Qxb6 Nxb6 26. Bc7 Rxd5 27. Bxb6 Rxd1+ 28. Rxd1 {Threatening mate with Bc5+.} Ke7 29. Rd7+ Kf6 30. Rxb7 Kxf5 31. Rxf7+ Kg6 {[#]} 32. Rxg7+ $3 {Precision: White = 78%, Black = 24%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Lu, Albert"]
[Black "Vorontsov, Pavlo"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2313"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,78,33,24,22,28,37,28,35,25,47,43,48,20,33,26,34,22,38,17,24,14,20,0,0,0,2,0,4,21,37,21,52,53,49,53,118,123,135,131,154,141,172,137,196,180,148,-21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 g6 2. c4 Bg7 3. Nf3 Nf6 4. Nc3 O-O 5. Bg5 d6 6. e3 Bf5 7. Bd3 Bxd3 {E61: King's Indian: Early deviations for White, including Smyslov System} 8. Qxd3 Nbd7 9. O-O h6 {White has an edge.} 10. Bh4 g5 11. Bg3 Nh5 12. Rfd1 $146 ({Predecessor:} 12. Rad1 e6 13. d5 Qe7 14. Nd4 a6 15. Qe2 Nxg3 16. hxg3 {1-0 (36) Kramnik,V (2812)-Caruana,F (2804) Leuven 2016}) 12... c5 13. Rac1 Rc8 14. b3 a6 15. Qe2 Ndf6 16. dxc5 Rxc5 17. Na4 Nxg3 18. hxg3 Rc8 19. Nd4 Qa5 20. Qf3 $36 {[%mdl 2048] White has good play.} b5 21. cxb5 Rxc1 22. Rxc1 {b6 is the strong threat.} axb5 23. Nc3 $1 e6 (23... Rc8 $1 $14 24. Ndxb5 Rc5) 24. Ndxb5 $16 d5 25. a4 Nd7 {[%cal Bf6d7,Bd7e5,Be5d3][%mdl 32] [#]} 26. Qd1 $1 Ne5 27. Na2 h5 (27... Rb8 $16) 28. b4 ({Weaker is} 28. Qxh5 Qd2 $15) 28... Qa6 29. Qxh5 $2 (29. Nd4 $16) 29... Nd3 {The position is equal.} 30. Rf1 {And now Qe2 would win.} Qxa4 31. Nbc3 Qc2 32. Qxg5 Ra8 33. Qg4 Rxa2 34. Nxa2 Qxa2 35. Qg5 Qb2 36. Qd8+ Bf8 37. Qg5+ Bg7 38. Qd8+ Bf8 39. Qg5+ Bg7 {Precision: White = 58%, Black = 44%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Feng, Maggie"]
[Black "Li, Ruifeng"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2298"]
[BlackElo "2571"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,95,-11,-11,47,36,52,41,42,33,47,27,63,57,65,66,61,28,41,33,34,30,30,31,26,13,17,21,17,20,31,6,10,21,14,0,0,0,0,0,0,13,38,19,34,34,33,31,102,87,95,88,57,80,83,55,112,112,112,120,122,119,113,112,132,131,123,112,122,86,89,89,90,90,89,70,74,70,122,81,81,0,112,0]} 1. Nf3 b6 2. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} Bb7 3. c4 e6 4. a3 Nf6 5. Nc3 g6 6. d5 Bg7 7. g3 O-O 8. Bg2 c5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} (8... exd5 $11 9. cxd5 Na6) (8... exd5 9. cxd5 c6 10. O-O cxd5 11. Bg5 Na6 12. Rc1 Nc7 13. Qd2 Ne6 14. Bh6 Bxh6 15. Qxh6 Rc8 16. Rfd1 Rc5 17. Nd4 Qe7 {0-1 (29) Georgiev,K (2636)-Vallejo Pons,F (2706) Khanty-Mansiysk 2013}) 9. O-O $14 exd5 10. cxd5 d6 {White is slightly better.} 11. Nd2 $146 ({Predecessor:} 11. Rb1 Nbd7 12. b4 Ne8 13. Bb2 Nc7 14. bxc5 bxc5 15. e4 Ba6 16. Re1 Rb8 17. Qc2 {½-½ (33) Camarena Gimenez,R (2402)-Vassallo Barroche,M (2409) Mislata 2010}) 11... Qe7 12. a4 Na6 13. Nc4 Nb4 14. Bf4 Rfd8 15. Re1 Ng4 16. e4 Ne5 17. Nxe5 Bxe5 18. Bxe5 Qxe5 19. Qd2 Qd4 20. Rad1 Qxd2 21. Rxd2 Ba6 22. Bf1 Bxf1 23. Kxf1 Rd7 24. Ra1 a6 25. f4 Re8 26. Kg2 f5 27. Re1 fxe4 28. Rxe4 Kf7 29. Kf3 Rxe4 30. Nxe4 {[%mdl 4096] Endgame KRN-KRN} c4 (30... b5 $14) 31. Ke3 $16 b5 32. axb5 axb5 33. Kd4 Nd3 34. Rc2 ({Of course not} 34. b3 $6 Nc1 $11) 34... Ke7 {[#]} ({Black should play} 34... Kg7 $14) 35. Nc3 $1 {[%cal Rc3b5]} Rb7 {[#]} 36. Nxb5 $1 {[%mdl 512]} Rxb5 37. Kxc4 Rxb2 38. Kxd3 {KR-KR} Rb7 39. Re2+ Kd7 40. Ke4 Rb4+ 41. Ke3 Rb3+ 42. Kd4 Ra3 43. Rb2 {Threatens to win with Rb7+.} Kc7 44. Rc2+ Kd7 45. Ke4 Ra4+ (45... h5 $14) 46. Ke3 Ra3+ 47. Ke4 Ra4+ {[#]} 48. Ke3 {Precision: White = 62%, Black = 60%.} (48. Kf3 $1 $16) 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "He, Anthony B"]
[Black "Kolev, Atanas"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2295"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,76,21,5,10,11,30,33,24,0,3,-17,-14,-50,-58,-43,0,0,0,0,23,-16,-20,-14,-19,-40,-17,-23,-22,-19,0,0,5,0,0,0,0,0,20,27,18,23,25,0,0,0,47,47,46,70,61,12,9,10,14,13,10,0,2,0,17,0,0,0,12]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. Bb3 d6 {[%cal Bd7d6,Bd6d5][%mdl 32]} 7. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} Ba7 8. Nf1 h6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (8... O-O 9. h3 Re8 10. Qe2 Be6 11. Bc2 b5 12. Ng5 Bc8 13. g4 b4 14. Bb3 Rf8 15. Ng3 bxc3 16. bxc3 Na5 17. Bc2 {1-0 (40) Duda,J (2693)-Sychev,K (2459) Minsk 2017}) 9. Ng3 Be6 10. O-O O-O {White is slightly better.} 11. Bc2 d5 12. d4 $146 ({Predecessor:} 12. Qe2 Re8 13. h3 b5 14. Rd1 dxe4 15. dxe4 Qc8 16. Bb3 Bc5 17. Bxe6 Qxe6 18. b4 {0-1 (49) Piscopo,P (2383)-Flear,G (2459) Calvi 2012}) 12... dxe4 13. Nxe5 Nxe5 14. dxe5 {[#] Qxd8 is the strong threat.} Qxd1 15. Rxd1 Ng4 16. Nxe4 Bf5 {Strongly threatening ...Bxe4.} 17. Rf1 (17. Nf6+ $5 gxf6 18. Bxf5 Nxf2 19. Rd7 $14) 17... Rfe8 18. Bf4 Bg6 19. Rad1 Nxe5 20. Rfe1 Ng4 21. Bg3 Re7 22. h3 Ne5 {[%cal Bg4e5,Be5c4,Bc4a3][%mdl 32]} 23. Bh4 Ree8 24. Kf1 Nc4 25. b3 Na3 (25... Ne3+ {keeps more tension.} 26. fxe3 Bxe4 27. Bxe4 Rxe4 28. Bd8 Bb6) 26. Bd3 Nb5 27. c4 Nd4 28. Nc3 Bxd3+ 29. Rxd3 Nf5 30. Rxe8+ Rxe8 31. Bd8 c6 $1 32. Bc7 Nd4 {The position is equal.} 33. Bf4 b5 34. cxb5 axb5 35. Be3 Nc2 $1 {[%cal Rc2e3]} 36. Bd2 Nd4 37. Be3 Nc2 $1 {[%cal Rc2e3]} 38. Bd2 Nd4 {Precision: White = 52%, Black = 63%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Findlay, Ian T"]
[Black "Nyzhnyk, Illya"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2239"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,116,12,12,21,14,14,14,14,14,26,18,21,0,6,0,0,-12,0,-21,-9,-28,-30,-31,-19,-37,0,-23,-22,-23,-27,-26,-18,-18,-15,-34,-14,-41,-29,-44,-45,-47,-46,-64,-44,-45,-47,-42,-37,-42,-33,-57,-54,-61,-59,-61,-66,-61,-55,-67,-73,-77,0,-49,-40,-21,-19,-58,-54,-53,-54,-55,-39,-46,-49,-114,-115,-88,-65,-68,-20,-92,-52,-82,-36,-169,-176,-133,-82,-93,-77,-77,-8,-74,-8,-8,-8,-8,-8,-2007,-1952,-1199,-1511,-4618,-4618,-4614,-4614,-4614,-4610]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} (6... Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Qxd4 Qxd4 11. Nxd4 Bd7 12. Be2 Bc5 13. Rd1 Rc8 14. c4 O-O 15. Be3 e5 16. Nc2 Bf5 17. Bxc5 Rxc5 18. Ne3 Be6 19. b4 Rc7 20. c5 Ne4 21. Rac1 Rfc8 22. Bf3 Nf6 23. Bd5 Nxd5 24. Nxd5 Bxd5 25. Rxd5 f6 26. Rcd1 {½-½ (26) Anand,V (2786)-So,W (2812) Stavanger 2017}) 7. O-O Nc6 8. Nb3 Nf6 {The position is equal.} 9. Nbxd4 Nxd4 10. Nxd4 {Hoping for Bb5.} a6 11. Re1 b5 12. Be2 Bb7 13. Bf3 Rd8 {aiming for ...Bxf3.} 14. Bxb7 (14. Qe2 {keeps more tension.} Bc5 15. Bxb7 Qxb7 16. Nb3 Be7 17. Bf4) 14... Qxb7 15. Qf3 $146 Qxf3 16. Nxf3 Nd5 17. c3 Nb6 18. Nd4 (18. Be3 $5 {[%cal Re3b6]} Na4 19. Rab1 $11) 18... Na4 19. Rb1 Bc5 20. Be3 Rd5 21. a3 Kd7 22. Kf1 Rc8 23. Nf3 Bd6 24. Bd4 f6 25. Be3 e5 26. Re2 f5 (26... Bxa3 $5 27. c4 Rxc4 $15) 27. g3 h6 28. h4 Ke6 29. Rbe1 Kf6 30. Bc1 Nc5 31. Be3 e4 32. Bd4+ Kf7 33. Nd2 Ne6 34. Nb3 g5 35. hxg5 hxg5 (35... Nxg5 $17 36. Nd2 h5) 36. Kg2 (36. g4 {feels hotter.} Nf4 37. Re3 Nd3 38. R1e2 Nf4 39. Re1) 36... Nxd4 37. Nxd4 g4 38. Ra1 Bc5 39. Nb3 Bb6 40. a4 a5 41. axb5 Rxb5 42. Nd4 (42. Ra3 $15) 42... Bxd4 $1 $17 43. cxd4 {[%mdl 4096] Endgame KRR-KRR} Ke6 44. Rd2 Rd8 45. Rc1 (45. Ra4 $11) 45... Rd6 46. Kf1 Rdb6 47. Rcc2 ({Better is} 47. Ra1 $1 $15) 47... Kd6 $1 $19 48. Ke2 a4 (48... Rb3 $142 49. Rc5 R6b5 50. Rxb5 Rxb5) 49. Ke3 $17 Rb3+ $1 50. Kf4 {[#]} Rf3+ $1 51. Kg5 {[#]} Rc6 ({Black should try} 51... Rb8 $1 $17 {[%cal Rb8g8]} 52. d5 Ke5) 52. Rxc6+ $11 Kxc6 {KR-KR} 53. d5+ $1 Kd6 54. Rd4 $2 {[%mdl 8192]} (54. Kf6 $11) 54... Rxf2 $19 {Black is clearly winning.} 55. Rxa4 e3 {[%cal Be4e3,Be3e2][%mdl 32]} 56. Ra8 e2 57. Re8 f4 {[%cal Bf5f4,Bf4f3][%mdl 32]} 58. Kxg4 f3 {Precision: White = 45%, Black = 61%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Yanayt, Eugene"]
[Black "Gurevich, Dmitry"]
[Result "0-1"]
[ECO "B60"]
[WhiteElo "2182"]
[BlackElo "2454"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,39,0,7,-58,-28,-118,-133,-272,-274,-347,-345,-540,-537,-527,-527,-525,-518,-515,-507,-593,-489,-1182]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 g6 7. Bxf6 exf6 8. Be2 {B60: Sicilian: Richter-Rauzer: Unusual Black 6th moves and 6...Bd7 without 7 Qd2} (8. Bb5 Bd7 9. Qd3 Bg7 10. O-O-O O-O 11. Nxc6 Bxc6 12. Bc4 f5 13. exf5 Qg5+ 14. Kb1 Qxf5 15. Qxf5 gxf5 {½-½ (47) Shankland,S (2679)-Perelshteyn,E (2489) Atlantic City 2016}) 8... Bg7 9. Ndb5 O-O 10. Qxd6 f5 {LiveBook: 3 Games} 11. Qa3 $146 (11. O-O-O $11) ({Predecessor:} 11. O-O-O Qa5 12. Qg3 fxe4 13. Bc4 a6 14. Nd6 Be5 15. Qe3 Bxd6 16. Rxd6 Qb4 17. Nxe4 Qxc4 18. Nf6+ Kg7 19. Nh5+ gxh5 20. Qg5+ Kh8 21. Qf6+ Kg8 22. Qg5+ {½-½ (22) Pruijssers,R (2529)-Fedorovsky,M (2385) Germany 2014}) 11... fxe4 12. Nxe4 (12. O-O $1 $11 {remains equal.}) 12... Bf5 $17 13. Ned6 (13. Ng3 $17 Bxc2 14. O-O) 13... a6 $19 14. Nc3 {[#]} Nd4 $1 {[%cal Rd4c2]} ({Not} 14... Bxc2 15. O-O $17) 15. O-O-O (15. O-O {is a better defense.} Nxc2 16. Qc5) 15... Bh6+ {Black is clearly winning.} 16. Kb1 Bxc2+ 17. Ka1 Bxd1 18. Bxd1 Qg5 {[#] ...Qc1+ is the strong threat.} 19. Ne2 Qxg2 20. Ng3 (20. Rg1 $142 Qxf2 21. Ne4 Qxh2 22. Qd6 Qxd6 23. Nxd6) 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Feinstein, Michael"]
[Black "De Firmian, Nick E"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2139"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,119,0,0,0,0,-29,-5,-10,0,0,0,0,-6,-14,-17,-13,-3,-9,-7,-18,0,0,12,8,10,12,12,10,26,16,9,0,0,-45,-27,-53,-46,-81,-87,-108,-56,-41,-54,-66,-63,-70,-34,-150,-25,-25,-31,-25,-25,-25,-24,-29,-2,-6,-8,-156,-161,-206,-83,-82,-95,-79,-80,-76,-1,-3,0,-179,0,-29,0,-18,-18,-26,-35,-538,-531,-524,-506,-1325,-1228,-1676,-1631,-12840,-12840,-12841,-12841,-12841,-12842,-12842,-12843,-12843,-12843,-12847,-12846,-29994]} 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 c5 6. O-O Be7 7. c3 O-O 8. e4 cxd4 9. cxd4 Ba6 {A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems} 10. Bxa6 Nxa6 11. e5 Nd5 {LiveBook: 15 Games. The position is equal.} 12. Qe2 $146 ({Predecessor:} 12. Ne4 Nac7 13. Bd2 f5 14. exf6 {½-½ (13) Howell,D (2684)-Demchenko,A (2629) Minsk 2017}) 12... Nab4 13. a3 Nc6 14. Ne4 Rc8 15. Bd2 h6 16. Rfd1 d6 17. Nc3 Nxc3 18. Bxc3 d5 19. h3 Qd7 20. Rd3 b5 21. Nh2 a5 22. Bd2 f5 23. exf6 Bxf6 24. Nf3 Rfe8 25. Bf4 a4 26. Qd2 Qa7 27. Bd6 Na5 28. Bc5 Qa6 29. Rd1 Nc4 30. Qc2 {[#]} Rxc5 $1 {[%mdl 512]} 31. dxc5 $15 Nxb2 32. Rb1 Nxd3 33. Qxd3 Rb8 34. Nd4 {[#]} (34. Nh2 $15) 34... Bxd4 (34... Qc8 $1 $17 {Hoping for ...e5.} 35. Qc3 e5) 35. Qxd4 $17 {[%mdl 4096] Endgame KQR-KQR} Qc6 36. Rc1 Rc8 37. Qe5 Rd8 38. Qd4 {[#]} e5 $1 {[%mdl 512]} 39. Qxe5 d4 40. Kf1 (40. Qe1 $11) 40... d3 41. Qe3 {[#]} d2 (41... Qd5 $1 $19 {Strongly threatening ...d2.} 42. f3 d2) 42. Rd1 Qd5 {aiming for ...Qc4+.} 43. f3 Qc4+ 44. Kf2 Qc2 (44... Kh8 $17) 45. Qe7 $11 Rd4 (45... Rf8 $5 {[%cal Rc2d1]} 46. Qe6+ Kh8 $11) 46. Ke2 $2 (46. Qe5 $11 {and White stays safe.}) 46... Qd3+ (46... b4 $19 47. axb4 a3) 47. Kf2 Qxa3 {Threatens to win with ...Qd3.} 48. Qe8+ Kh7 49. Qxb5 Qc1 $36 {[%mdl 2048] Black has good play.} (49... Qa2 $5 50. c6 $8 Qc2 $15) 50. Ke2 $2 {[%mdl 8192]} ({White must play} 50. c6 $1 $15) 50... a3 $19 {Black is clearly winning.} 51. c6 Qc2 52. c7 (52. Qa5 $142 a2 53. c7) 52... Qxc7 53. Qb1+ Kh8 54. Rxd2 Qe7+ 55. Kd1 Rxd2+ 56. Kxd2 Qg5+ 57. Kc3 Qxg2 58. Qb8+ Kh7 59. Qb7 a2 60. Kd4 {Precision: White = 32%, Black = 54%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.16"]
[Round "2"]
[White "Wang, Xiexin"]
[Black "Abdumalik, Zhansaya"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2000"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,95,31,33,33,39,35,64,69,79,70,89,96,99,64,72,69,72,76,160,18,0,-49,31,27,31,24,27,31,27,23,37,8,33,10,35,17,31,9,49,42,84,77,127,127,140,127,138,64,72,35,83,0,-7,0,0,-28,0,0,0,-15,0,0,0,0,0,-7,0,-100,-101,-120,-106,-106,-93,-92,-90,-194,-206,-268,-242,-320,-47,-266,-95,-61,-35,-23,0,0]} 1. c4 c5 2. Nc3 Nc6 3. g3 e5 4. Bg2 Nf6 5. e3 d6 6. Nge2 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} Be6 7. Nd5 Bxd5 (7... Be7 8. O-O O-O 9. Nec3 Nb4 10. Nxe7+ Qxe7 11. d3 d5 12. a3 dxc4 13. axb4 cxb4 {1-0 (40) Kramnik,V (2795)-Polgar,J (2705) London 2012}) 8. cxd5 {White is slightly better.} Nb4 9. Qb3 Qa5 10. O-O Rc8 11. d3 $146 {a3 is the strong threat.} ({Predecessor:} 11. a3 Qa6 12. f4 Nd3 13. fxe5 Nxe5 {0-1 (46) Suarez,M (1963)-Mateus,M (2155) Pereira 2011}) 11... Qa6 $1 12. Rd1 $1 {And now a3 would win.} e4 $1 {[%cal Rb4d3]} 13. Nf4 g5 (13... Nxd3 $142 14. Nxd3 exd3) 14. Nh3 (14. dxe4 $16 gxf4 15. exf4) 14... exd3 $11 15. Nxg5 Bg7 (15... Rg8 $1 $15 16. h4 h6) 16. Rb1 $1 $14 h6 17. Nh3 {[%cal Bg5h3,Bh3f4,Bf4g2,Bg2h4][%mdl 32]} Qxa2 18. Qxa2 Nxa2 19. Rxd3 a5 20. Bd2 (20. Ra3 $5 {[%cal Ra3a2]} Nxc1 21. Rxc1 $14) 20... b6 21. Nf4 O-O 22. Ra3 Nb4 23. Bc3 Rfe8 24. Rd1 Re7 25. Bf3 Na6 26. Ng2 Ne8 27. Nh4 {Hoping for Nf5.} Bxc3 28. Rxc3 ({Better is} 28. bxc3 $16 {Strongly threatening Nf5.} Ng7 29. Rb1) 28... Ng7 29. Be2 Nc7 30. g4 (30. Rb3 $16) 30... b5 $11 31. Ra3 a4 32. Ng2 Ra8 33. f3 f5 34. h3 Kf7 35. Kf2 c4 36. gxf5 Nxf5 37. e4 Rg8 38. Ne3 (38. Bf1 $11 {remains equal.} Ng3 39. Ne3) 38... Nxe3 $17 39. Rxe3 Na6 40. f4 Nc5 41. e5 Ke8 42. e6 (42. Rf1 $17) 42... Reg7 $19 43. Bf1 Ke7 44. Rde1 {[#]} b4 $2 (44... Rf8 $1 $19 45. Rf3 Rf5) 45. f5 $2 {[#]} ({White has to play} 45. Bxc4 $15 Rg2+ 46. Kf1) 45... Rf8 $2 (45... c3 $1 $19 {[%cal Rc3b2] has better winning chances.} 46. bxc3 b3 47. f6+ Kxf6) 46. Bxc4 $17 Rxf5+ 47. Rf3 Rxf3+ 48. Kxf3 {Precision: White = 39%, Black = 40%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Nyzhnyk, Illya"]
[Black "Schmakel, Sam A"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2612"]
[BlackElo "2344"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,91,50,42,56,51,54,59,77,47,72,73,80,69,74,75,78,77,75,74,98,103,95,84,99,95,109,104,98,64,67,64,102,106,105,99,110,114,137,137,142,119,140,127,134,125,159,142,166,172,164,154,172,161,168,170,176,169,166,139,377,379,472,481,465,465,727,727,724,703,714,679,2081,1983,29996,1571]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be3 c5 7. h3 cxd4 8. Nxd4 b6 {E90: King's Indian: Classical: Early deviations and 6 h3} 9. g3 Bb7 10. Bg2 {LiveBook: 9 Games} e6 $146 {White is slightly better.} ({Predecessor:} 10... Nbd7 11. O-O Nc5 12. Qc2 Rc8 13. Rfd1 Qd7 14. a4 a5 15. Nd5 Qd8 16. Rd2 {1-0 (50) Matlakov,M (2714)-Kovalev,V (2629) Minsk 2017}) 11. O-O Qe7 12. Qd2 Na6 13. Rfe1 Nc5 {[%cal Rc5e4]} 14. Bg5 e5 15. Nd5 Qd8 16. Nb5 Bxd5 17. cxd5 Qd7 18. Nc3 Ne8 19. b4 Na6 20. Qe2 Nac7 21. h4 f5 {next ...f4 is good for Black.} 22. Bh3 Qf7 23. exf5 gxf5 24. Rad1 e4 25. Qd2 a5 26. b5 $1 a4 27. Bh6 Qf6 28. Bxg7 Nxg7 29. a3 Ra5 30. Rb1 {[%cal Bd1b1,Bb1b4,Bb4c4][%mdl 32]} Nh5 31. Rb4 Rf7 32. Qg5+ ({Don't play} 32. Nxa4 $6 Rg7 $16) 32... Qxg5 33. hxg5 Kg7 {[#]} 34. Reb1 $1 Kg6 {[#]} 35. Rc4 $1 ({Inferior is} 35. Nxa4 Nxd5 36. Rd4 Kxg5 $11) 35... Kxg5 36. Rc6 Nf6 37. Rxd6 Rf8 38. Bf1 f4 $2 (38... Raa8 $16 39. Rxb6 Nfxd5 40. Nxd5 Nxd5) 39. Rd1 $18 e3 40. fxe3 fxe3 41. Rxb6 Kf5 (41... Rd8 $142 42. Rc6 Nce8) 42. d6 {[%cal Bd5d6,Bd6d7][%mdl 32]} Ne6 43. Bh3+ Ke5 44. Bxe6 Ra7 45. d7 {White wants to mate with Bh3.} Rc7 46. Rc6 {Precision: White = 91%, Black = 49%.} (46. Bh3 $142 Rc6 47. Rxc6 Re8 48. dxe8=R+ Nxe8 49. Re6#) 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Kolev, Atanas"]
[Black "Feng, Maggie"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2572"]
[BlackElo "2298"]
[Annotator "TA"]
[PlyCount "177"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,177,12,10,10,14,32,12,25,21,31,25,36,25,32,22,40,20,25,17,20,16,21,22,27,15,15,19,16,17,27,0,8,0,0,0,2,2,2,0,0,0,74,7,8,0,12,12,14,12,14,14,49,45,73,12,37,0,43,44,54,0,1,0,4,0,4,4,21,21,21,21,21,21,21,15,21,15,15,15,15,15,15,15,29,15,15,15,29,29,29,29,29,17,29,29,29,29,29,15,15,15,15,15,15,0,15,0,15,0,15,15,15,8,8,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,36,0,36,0,0,0,29975,29976,29979,29980,29980,29979,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29984,29985,29985,29985,29985,29986,29986,29987]} 1. d4 d5 2. Nf3 c5 3. Bf4 Nc6 4. e3 Nf6 5. Be2 e6 6. O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Bd6 7. Bxd6 Qxd6 8. c4 {LiveBook: 3 Games. The position is equal.} cxd4 9. Nxd4 O-O 10. cxd5 Nxd4 11. Qxd4 Qxd5 12. Qxd5 Nxd5 13. Bf3 Nf6 $146 14. Rc1 e5 15. Na3 e4 16. Be2 Bd7 17. Nc4 Bb5 18. Kf1 Rfd8 19. a4 Bc6 20. Na5 Bd5 21. Ke1 Rac8 22. Nc4 Kf8 23. Na3 a6 24. a5 Bb3 25. Nc4 Bxc4 26. Rxc4 Rxc4 27. Bxc4 $11 {[%mdl 4096] Endgame KRB-KRN} Ng4 (27... Rc8 $11 {keeps the balance.} 28. Ra4 Rc5) 28. Be2 (28. Rd1 $16 Rb8 29. Rd4) 28... Ne5 29. Ra4 f5 30. Rb4 Rd7 31. Rb6 Rc7 32. f3 Nc6 33. b4 Ke7 34. b5 ({White should play} 34. Bc4 $16) 34... Nxa5 35. bxa6 bxa6 36. fxe4 fxe4 37. Rxa6 (37. Rb4 $1 $14) 37... Nb3 38. Bg4 Nc5 39. Rb6 Kf7 40. Kf2 Re7 41. Kg3 Nd3 42. h4 g6 43. Rd6 Re5 44. Be2 Ke7 45. Ra6 (45. Rd4 {is more complex.} Kf6 46. Bxd3 exd3 47. e4 g5 48. h5) 45... Kf7 46. Ra3 h5 47. Bxd3 exd3 48. Rxd3 {KR-KR} g5 49. hxg5 Rxg5+ 50. Kf3 Ke6 51. Rd4 Rf5+ 52. Rf4 Rg5 53. Rf8 Rg4 54. Rh8 {And now Rh6+ would win.} Rg5 55. Rh6+ Kf7 56. e4 Kg7 57. Rd6 {Threatens to win with Rd5.} h4 58. Rd2 Kf6 59. Rd6+ (59. Kf4 $5 {[%cal Rd2d6]} Rg3 60. Ra2 $14) 59... Ke7 60. Rd2 Kf6 61. Ra2 Ke6 62. Kf4 Rg3 63. e5 Rg8 64. Ra6+ Ke7 65. Kf5 {Hoping for Ra7+.} Rxg2 66. Ra7+ Ke8 67. Rh7 Ra2 68. Kf6 Rf2+ 69. Ke6 Kf8 $1 70. Rxh4 Ra2 71. Rh8+ Kg7 72. Rd8 {Strongly threatening Ke7.} Ra5 73. Rd5 (73. Kf5 $5 {[%cal Rd8d7]} Kf7 74. Rd7+ Ke8 75. Rd6 $16) 73... Ra6+ 74. Ke7 {aiming for Rd4.} (74. Rd6 {with more complications.} Ra8 75. Kf5 Kf7 76. Rd7+ Ke8 77. Ke6) 74... Ra7+ 75. Rd7 Ra6 76. e6 (76. Rd4 $5 {[%cal Rd4g4]} Ra7+ 77. Ke8 Ra8+ 78. Rd8 $18) 76... Kg6 77. Rd6 (77. Rd2 $5 {[%cal Rd2g2]} Ra7+ 78. Rd7 $18) 77... Ra7+ $2 {[%mdl 8192] [#]} (77... Ra8 $11) 78. Ke8 $1 {White mates.} Kf6 79. e7+ $1 Kg7 80. Rd1 Ra8+ 81. Kd7 Ra7+ 82. Ke6 Ra6+ {[#]} 83. Rd6 $1 Ra8 84. Rd8 Ra6+ 85. Kd5 Ra5+ 86. Kc4 Ra4+ 87. Kb3 Re4 88. e8=Q Rxe8 89. Rxe8 {Precision: White = 52%, Black = 69%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Li, Ruifeng"]
[Black "He, Anthony B"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2571"]
[BlackElo "2295"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,49,51,39,32,19,36,72,59,105,126,118,110,95,91,110,90,627,624,814,791,1107,1093,1072,1072,986,934,5564,5564,29995,29996,29996,29997,29998,-530]} 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 d5 {A01: Nimzowitsch-Larsen Opening} 7. c4 dxc4 (7... c6 8. Nc3 Bf5 9. Qc2 Be7 10. cxd5 cxd5 11. Be2 O-O 12. O-O Rc8 13. Qb2 {½-½ (42) Van Geet,D (2617)-Boger,R (2642) ICCF email 2009}) 8. Bxc4 Bd6 9. Nc3 Bf5 {LiveBook: 4 Games} 10. f3 O-O 11. O-O Bg6 12. fxe4 {Hoping for e5.} Nxe4 13. Nxe4 Bxe4 14. Qg4 {[%csl Gd4][%cal Rg4g7]} Bg6 $146 15. Rf5 {aiming for Raf1.} c5 {[#]} 16. Bc3 $1 $40 {[%mdl 128] White attacks with force.} Qc8 $2 {[%mdl 8192]} (16... b5 $16 17. Bxb5 Bxh2+ 18. Kh1 (18. Kxh2 Qb8+ 19. Kg1 Qxb5 $14) 18... Qc8) 17. Raf1 $18 Kh8 {Threatening ...f6.} 18. Qg5 f6 {[#]} 19. Rxf6 $1 {[%mdl 512]} Rxf6 20. Rxf6 ({Weaker is} 20. Bxf6 Qc7 $16) (20. Qxf6 Qd7 $16) 20... Qc6 21. Bd5 Qb6 {[#]} 22. Qxg6 $3 {[%mdl 512] White threatens Rf8+! and mate.} hxg6 {[#]} 23. Rf3 $1 {[%cal Rf3h3] White mates.} Bxh2+ 24. Kh1 {[%cal Rf3h3]} Bf4 25. Rh3+ {[%mdl 32768] Precision: White = 96%, Black = 21%. . Loss on Time!?} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Gurevich, Dmitry"]
[Black "Gordievsky, Dmitry"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2454"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,80,50,47,16,53,22,16,6,4,0,29,12,31,41,108,113,99,118,104,107,162,76,181,183,173,180,182,185,169,49,47,46,139,143,137,116,152,21,92,107,136,103,132,132,111,125,122,114,95,-123,-111,-809,-800,-995,-701,-1378,-657,-856,-856,-849,-845]} 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 O-O 9. Rd1 Nc6 10. Qf4 d6 11. b3 Qb8 12. Ba3 {[%cal Ra3d6] A30: Symmetrical English: Double Fianchetto and Hedgehog} (12. Bb2 Rd8 13. e4 a6 14. Qe3 Nd7 15. Rd2 Ra7 16. h3 Ba8 17. Bf1 Nde5 18. Nh2 Rb7 19. Qe2 Na5 20. f4 Nd7 {0-1 (45) Iturrizaga Bonelli,E (2607)-Gonzalez Torres,D (2627) Bogota 2010}) 12... Ne5 13. Nb5 {[%cal Ra3d6]} Ng6 $146 ({Predecessor:} 13... Rd8 14. Bxd6 Bxd6 15. Rxd6 Rxd6 16. Nxd6 Qxd6 17. Qxe5 Rd8 18. Qxd6 Rxd6 {1-0 (62) Siegel,G (2453)-Lucchetti,P (2190) Besancon 2001}) 14. Qe3 {[%cal Ra3d6] The position is equal.} Rd8 15. Rac1 h5 16. Nbd4 Ng4 17. Qd3 $36 {[%mdl 2048] White is pushing.} e5 (17... N4e5 $14 18. Qc2 h4) 18. Nf5 $16 e4 19. Qc3 $1 {[%csl Gf5][%cal Rc3g7]} Bf6 20. N3d4 h4 (20... d5 $16) 21. Ne3 (21. Bh3 $1 $18 {[%cal Rh3g4]} N4e5 22. Qe3) 21... Qc8 (21... Nxe3 $16 22. Qxe3 d5) 22. Bh3 $18 Nxe3 23. Bxc8 Nxd1 24. Rxd1 Raxc8 25. Qe3 (25. Qc2 $18) 25... d5 $14 26. Nf5 d4 ({Black should try} 26... dxc4 $14 27. Nd6 hxg3) 27. Nxd4 $16 Rd7 28. Bb2 {[%cal Ba3b2,Bb2c3,Bc3f6][%mdl 32]} Rcd8 29. Kg2 ({Better is} 29. Bc3 $16) 29... Bc8 (29... hxg3 $11 {remains equal.} 30. fxg3 (30. hxg3 Ne5 $11) 30... Ne5) 30. h3 Bb7 31. Bc3 Ne7 32. g4 $1 Ng6 {With the idea ...Be5.} 33. Nf5 $1 Rxd1 34. Bxf6 R8d2 ({Not} 34... gxf6 $2 35. Qh6 $18) 35. Bg5 $2 {[#]} ({But not} 35. Bxg7 $2 Rxe2 $1 {[%mdl 512]} 36. Bf6 Rxe3 $19) (35. Kh2 $1 $16 {is necessary to keep the advantage.} Rc2 36. Bxh4 (36. Bxg7 Rcc1 $14)) 35... Re1 $1 $17 36. Nd4 $2 {[%mdl 8192]} (36. Kh2 $17 Rdd1 37. Nxh4) 36... Rdd1 $19 {( -> ...Rg1+). Black is clearly winning.} 37. f4 {[#]} Rxd4 $1 {[%mdl 512]} 38. Kf2 (38. Qxd4 e3+) 38... Rd3 39. Qxd3 exd3 40. Kxe1 f6 {Precision: White = 31%, Black = 43%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Torres Rosas, Luis Carlos"]
[Black "Lin, Andy"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2360"]
[BlackElo "2147"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,87,56,88,83,98,60,116,116,123,120,127,129,137,108,104,104,116,0,0,0,0,0,0,0,0,8,20,0,58,60,142,141,133,64,306,297,302,236,313,306,710,706,740,722,716,344,316,39,40,43,37,-33,-33,-35,131,125,126,120,225,222,707,706,705,706,805,805,1577,1577,29987,1208,29992,0]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Qc2 dxc4 5. Qxc4 Nf6 6. Qc2 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines} (6. Bg5 b5 7. Qc2 Bb7 8. g3 Nbd7 9. Bg2 c5 10. dxc5 Bxc5 11. O-O Rc8 12. Qb3 a6 13. a4 b4 14. Nbd2 {1-0 (32) Lalith,B (2587)-Zhigalko,S (2671) Doha 2016}) 6... b5 7. e4 Bb7 8. Bd3 h6 9. O-O Nbd7 {LiveBook: 3 Games} 10. Nc3 Rc8 11. a3 $146 ({Predecessor:} 11. Qe2 Be7 12. e5 Nh7 13. Bxh7 Rxh7 14. Qe4 g6 15. h4 Qb6 16. h5 {0-1 (43) Sazonov,A-Vasiliev,D RCCA corr 2002}) 11... Be7 (11... c5 $14) 12. Qe2 $16 a6 13. b4 Qc7 14. Bb2 O-O 15. e5 Nd5 16. Qe4 {[%csl Gd3][%cal Re4h7]} g6 17. Nh4 (17. Qg4 $16) 17... Nxc3 $1 $11 18. Bxc3 {Nxg6! is the strong threat.} c5 19. Qg4 $1 $40 {[%mdl 128] Black must now prevent Nxg6! White mounts an attack.} Bxh4 20. Qxh4 c4 21. Bc2 Kg7 $1 22. f4 {[%cal Bf2f4,Bf4f5,Bf5f6][%mdl 32]} Qd8 (22... Rg8 $11) 23. Qg3 $14 Nb6 (23... Kh7 $14) 24. f5 $16 {aiming for f6+.} Qg5 {[%cal Rg6f5]} 25. f6+ $1 Kh7 $2 (25... Kh8 $1 $14) 26. Qf2 $1 $18 Rfd8 27. Bd2 Qg4 {Hoping for ...Bxg2!} 28. h3 $1 {[%cal Rh3g4]} Qh5 $2 ({Of course not} 28... Qxd4 29. Be3 $18) (28... Qxg2+ 29. Qxg2 Bxg2) 29. Bd1 Qf5 30. Qh4 g5 31. Rxf5 (31. Qh5 $142 Qg6 32. Bc2 $1 {[%mdl 512]} Rxd4 33. Bxg6+ fxg6 34. Qe2) 31... gxh4 32. Rf4 $2 (32. Rh5 $18 Rxd4 33. Rxh6+ Kg8 34. Be3) 32... Rg8 33. Bc2+ $1 Kh8 34. g4 ({White should try} 34. Rf2 $14) 34... c3 $15 35. Bc1 Nd5 $2 (35... Nc4 $15 {stays ahead.}) 36. Rf2 $16 h5 37. g5 Rgd8 (37... Nb6 $16 {might work better.}) 38. Kh2 $18 Rc4 $2 (38... Rg8 39. g6 Rxg6) 39. g6 fxg6 40. Bxg6 Rxd4 41. Bh6 Nxf6 42. exf6 Rf4 43. Kg1 (43. Bxf4 $142 Bg2 44. f7 Kg7 45. Rxg2 e5 {[#]} 46. Rd1 $1 {[%mdl 512]} Rb8 47. Bxe5+ Kf8 48. Bf6 Rc8 49. Bxh5 Rc7 50. Rg8#) 43... Rfd4 44. Kh2 $2 {[%mdl 32768] Precision: White = 55%, Black = 29%. . Sensor Board Error (Ke4/e5)?} (44. f7 {mates} Rf8 45. Bxf8 Bf3 46. Bd6 Rd1+ 47. Rxd1 Kg7 48. Rxf3 Kh6 49. f8=Q+ Kxg6 50. Qf7+ Kh6 51. Bf4#) 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Ginsburg, Mark"]
[Black "Kiewra, Keaton F"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2341"]
[BlackElo "2429"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,96,20,-10,17,11,5,-6,10,-18,39,19,54,27,41,-52,67,9,35,23,22,21,33,15,6,6,16,8,33,28,54,9,12,12,21,0,8,8,6,6,8,-59,-64,-54,0,-80,-58,-190,-132,-136,-137,-276,-166,-160,-156,-162,-132,-157,-145,-149,-22,-21,-20,-102,-97,-164,-57,-134,-150,-179,-168,-456,-434,-635,-621,-577,-561,-1408,-1390]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 O-O 6. Be2 c6 7. O-O e5 8. Re1 exd4 9. Nxd4 Re8 10. Bf1 Nbd7 11. Nc2 Qc7 {E95: King's Indian: Classical: 7...Nbd7 8 Re1} (11... Qe7 12. Be3 Ne5 13. Qd2 Be6 14. Na3 a6 15. f3 b5 16. cxb5 axb5 17. Nc2 Reb8 18. b3 b4 19. Na4 {½-½ (57) Swayams,M (2470)-Kovalev,V (2560) Moscow 2016}) 12. Bf4 Ne5 13. Qd2 Be6 {The position is equal.} 14. b3 Rad8 (14... Nh5 $11 15. Bg5 Qa5) 15. Bg5 $146 ({Predecessor:} 15. f3 Qa5 16. Nd4 Bc8 17. Rad1 Nfd7 18. Kh1 Nc5 19. Bg5 {½-½ (71) Trajkovic,P (2280)-Lazic,D (2286) Kragujevac 2000}) 15... a6 16. Rad1 b5 17. Qf4 (17. cxb5 $14 axb5 18. Nd4) 17... Qe7 (17... Neg4 $1 $15) 18. c5 (18. cxb5 $14 axb5 19. h3) 18... Bg4 19. f3 Bc8 20. cxd6 Rxd6 21. Rxd6 Qxd6 22. Rd1 Qc5+ 23. Qe3 Qxe3+ 24. Bxe3 Bf8 25. a4 Be6 {[#] White must now prevent ...b4.} 26. Nd4 Bc5 27. Kf2 Bxd4 (27... Nfg4+ $5 28. fxg4 Nxg4+ 29. Ke2 b4 $11) 28. Bxd4 Bxb3 29. Rb1 bxa4 30. Bxa6 (30. Ra1 $11) 30... Nfd7 $15 31. Be2 c5 (31... f5 $15) 32. Be3 (32. Bxe5 $1 $11 {keeps the balance.} Nxe5 33. f4) 32... c4 $17 33. Bd4 (33. Nb5 $15) 33... a3 (33... Nc6 $19 34. Be3 a3) 34. Nd5 a2 35. Rc1 (35. Ra1 $17 {is a better defense.}) 35... f5 {...Nd3+ is the strong threat.} 36. Ke3 Kf7 37. h4 Ra8 38. Ba1 Ra3 39. Kd2 h5 ({Black should play} 39... fxe4 $17 40. fxe4 Ke6 41. Nc7+ Ke7) 40. exf5 $1 $11 gxf5 41. Nf4 (41. Ne3 $1 $11) 41... Ra6 $17 42. Nxh5 (42. g3 $17) 42... Rh6 (42... Rd6+ $19 43. Ke3 Nd3) 43. g4 ({Better is} 43. Ng3 $15) 43... Rd6+ 44. Ke3 Nd3 $36 {[%mdl 2048] Black has strong initiative.} 45. Rc3 $2 {[#]} (45. Rg1) 45... Nb6 $1 $19 {Black is clearly winning.} 46. Bxd3 (46. gxf5 $142 Nd5+ 47. Kd2 Nxc3 48. Kxc3) 46... Nd5+ ({Worse is} 46... cxd3 47. Rxd3 Re6+ 48. Kd2 $11) 47. Kf2 Nxc3 48. Bxf5 Nb5 {Precision: White = 26%, Black = 34%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Atoufi, Pedram"]
[Black "Raptis, Nick"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2281"]
[BlackElo "2296"]
[Annotator "TA"]
[PlyCount "188"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,188,16,-11,11,0,0,3,8,0,-1,4,8,-8,24,17,21,17,40,-38,-38,-37,-34,-42,-45,-42,-35,-63,-47,-56,-32,-33,-15,-68,-68,-68,-69,-89,-89,-89,-89,-89,-89,-89,-89,-89,-89,-90,-56,-90,-76,-90,-90,-122,-122,-122,-78,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-25,-122,-122,-122,-122,-122,-8,-8,-8,-122,-122,-122,-122,-122,-8,-56,-8,-122,-7,-122,-122,-122,-122,-122,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,0,0,-8,-8,-8,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,-8,-8,-8,-8,-12,-8,-122,-122,-122,-8,-16,0,-122,-122,-5285,-479,-1675,-1434,-29981,-29981,-29981,-29982,-29983,-29983,-29988,-29989,-29989,-29990,-29990,-29991,-29991,-29992,-29992,-29992]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nc6 5. Bb5 Bd6 6. c4 dxc4 7. d5 {[%cal Bd4d5,Bd5c6][%mdl 32]} a6 8. Ba4 b5 9. dxc6 bxa4 10. O-O Ne7 11. Qxa4 Be6 {C01: French: Exchange Variation} (11... O-O 12. Nc3 Rb8 13. Qxc4 Rb4 14. Qe2 Nxc6 15. h3 Re8 16. Be3 Rf4 17. Rad1 Rf5 18. Nd4 Nxd4 19. Rxd4 Bb7 20. Rfd1 {½-½ (55) Bukavshin,I (2616)-Ponkratov,P (2617) St Petersburg 2014}) 12. Ng5 Bd5 13. Nc3 Bxc6 {The position is equal.} 14. Qxc4 O-O 15. Nge4 Qd7 16. Bg5 $146 ({Predecessor:} 16. Nxd6 cxd6 17. Bg5 Rfc8 18. Qe2 Ng6 19. Rad1 {0-1 (40) Tomilova,E (2315)-Milanovic,S (2375) Moscow 2015}) 16... Nd5 (16... Bb5 {is more complex.} 17. Nxb5 axb5 18. Qb3 c6 19. Nxd6 Qxd6 20. Bxe7 Qxe7 21. Rfe1 Qf6) 17. Nxd6 Nxc3 18. Qxc3 {aiming for Nc4.} Qxd6 19. Rfc1 (19. Bf4 $14 Qxf4 20. Qxc6) 19... Bxg2 $1 $15 20. Qxc7 Qg6 21. Kxg2 Qxg5+ 22. Qg3 Qb5 23. Qb3 Qe5 24. Qc3 Qe4+ 25. Qf3 Qb4 26. Qb3 (26. b3 $11) 26... Qxb3 27. axb3 {[%mdl 4096] Endgame KRR-KRR} Rfb8 28. Rc6 Rxb3 29. Raxa6 Rab8 30. Rc2 g6 {[%cal Bg7g6,Bg6g5][%mdl 32]} 31. Ra2 R8b5 32. f3 Kg7 33. Kg3 g5 34. Kg2 h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 35. h3 Kg6 36. Ra6+ f6 $1 37. Ra2 Kf5 38. Kg3 h4+ 39. Kg2 R5b4 40. Rf2 Kf4 41. Ra6 f5 ({But not} 41... Rxb2 42. Rxf6+ Ke5 43. Rf8 $15) 42. Ra2 Rd3 43. Ra1 Rbd4 44. Rc1 Rd2 45. Rc2 Rd1 (45... Rxc2 $1 $17 46. Rxc2 Rd3) 46. Rfe2 (46. Rc3 $11) 46... R1d3 $17 47. Rf2 Re3 48. Rc5 Re1 (48... Rb3 $17 49. Rfc2 Rdb4 50. R5c4+ Rxc4 51. Rxc4+ Ke3) 49. Rfc2 $11 Red1 50. Re2 (50. R5c4 $11) 50... R1d2 $17 51. Rc2 Rxe2+ 52. Rxe2 {KR-KR} Rc4 ({Black should try} 52... Rd3 $17 53. Rc2 Ke3) 53. Kf2 (53. b3 $5 {[%cal Rb3c4]} Rb4 54. Rb2 $17) 53... Rc1 54. Kg2 (54. Rd2 $1 $11 {was the only way to keep the balance.}) 54... Rb1 (54... Rd1 $1 $17 55. Rc2 Rd3 56. Rc4+ Ke3) 55. Kf2 (55. Rc2 $11 {keeps the balance.}) 55... Rh1 56. Kg2 Rd1 57. Rc2 Ke3 (57... Rd3 $17 58. Rc4+ Ke3) 58. Rc3+ Kd4 {And now ...Rd2+ would win.} 59. Rc2 Rb1 60. Kf2 f4 61. Rd2+ Kc4 62. Rc2+ Kd3 63. Rc3+ Kd2 (63... Kd4 {looks sharper.} 64. Rb3 Rh1 65. Kg2 Ra1 66. Kf2 Ra5) 64. Rb3 Kc2 65. Rc3+ $1 Kd2 66. Rb3 $1 Rh1 {Hoping for ...Rh2+.} 67. Kg2 Re1 68. Rb5 Re2+ 69. Kg1 Ke3 70. Rb3+ Kd4 71. Rb5 Kd3 72. Rb3+ Kc4 73. Rb8 $1 Re1+ 74. Kf2 Rh1 75. Kg2 Rb1 76. Kf2 Kd3 77. Rb5 Rc1 78. Rb3+ Kc4 79. Rb8 $1 {[%cal Rb8c8] Black must now prevent Rc8+.} Rc2+ 80. Kg1 {Rc8+ is the strong threat.} Kd3 {Strongly threatening ...Ke2.} (80... Kd4 {is more complex.} 81. Rb3 Rc5 82. Kf2 Re5 83. Rb8 Kd3) 81. Rb3+ (81. Re8 $1 $11) 81... Ke2 82. Kg2 Kd2 ({Black should play} 82... Rd2 $17 {Threatens to win with ...Ke1+.} 83. Rc3 Rxb2) 83. Kg1 Ke2 ({Better is} 83... Ke1 $11) 84. Kg2 Rd2 85. Kg1 $2 {[%mdl 8192] [#]} (85. Ra3 $17) 85... Rd1+ $1 $19 86. Kg2 {[#]} (86. Kh2 $142 Rf1 87. Rb5) 86... Rf1 $1 87. Rb5 Rf2+ {Black mates.} 88. Kg1 Rxf3 89. Kh2 Re3 90. Ra5 f3 {[%cal Bf4f3,Bf3f2][%mdl 32]} 91. b4 f2 92. Ra2+ Kf3 93. Ra1 Re1 94. Ra3+ Kf4 {Precision: White = 46%, Black = 58%.} 0-1

[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

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Nyzhnyk, Illya"]
[Black "Gordievsky, Dmitry"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2612"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,94,0,0,8,0,0,0,0,-10,0,0,0,0,43,40,31,35,40,-22,89,0,0,-1,41,43,29,18,26,29,4,21,31,9,58,61,54,58,71,69,137,137,172,145,166,132,182,181,178,182,194,69,284,265,257,246,281,5,18,0,0,-7,-8,-50,0,-27,-8,-8,-8,-8,-8,-8,-8,-28,0,-29,-8,-10,0,-52,0]} 1. c4 c5 2. Nc3 g6 3. Nf3 Bg7 4. e3 {[%cal Be2e3,Be3d4][%mdl 32]} Nf6 5. d4 cxd4 6. exd4 d5 7. Bg5 Ne4 8. cxd5 Nxg5 9. Nxg5 e5 {B14: Caro-Kann: Panov-Botvinnik Attack with 5...e6 and 5...g6} (9... O-O 10. Qd2 Nd7 11. Bc4 Bh6 12. f4 Nf6 13. O-O a6 14. a4 Bf5 15. a5 Rc8 16. Bb3 Qd6 17. Rfe1 {½-½ (39) Kortschnoj,V (2628)-Morozevich,A (2679) Biel 2003}) 10. Nf3 exd4 $1 11. Nxd4 O-O {The position is equal.} 12. Qd2 Nc6 $146 ({Predecessor:} 12... Qb6 13. Rd1 Rd8 14. Be2 Nc6 15. Ndb5 Nb4 16. a3 a6 17. Na4 {0-1 (31) Moskalenko,V (2544)-Borges Matos,J (2456) Barbera del Valles 2004}) 13. Nc2 Ne7 14. Bc4 b5 15. Nxb5 Bxb2 16. Rb1 Be5 17. f4 (17. O-O $14) 17... Nf5 (17... Bg7 $11) 18. O-O (18. fxe5 $16 Qh4+ 19. Kd1 Qxc4 20. Rb4 Qxa2 21. g4) 18... Bg7 $11 19. Kh1 a6 20. Nbd4 Nd6 21. Nc6 Nxc4 22. Qe2 Qd6 23. Qxc4 Bf5 24. Rbe1 {And now Ne7+ would win.} Rfc8 25. Ne3 Bd7 {[%cal Rd7c6]} 26. Rc1 Re8 {[#]} 27. Qd3 $1 Bxc6 ({Black should play} 27... Qf6 $1 $14) 28. Rxc6 $16 Qe7 29. Nc4 Rad8 30. d6 ({But not} 30. Rxa6 $6 Qe4 $16) 30... Qe4 31. Qxe4 Rxe4 32. Rd1 Rxf4 {[#]} 33. g3 (33. Na5 $1 $18) 33... Rf6 $2 (33... Rd4 $14 34. Rxd4 Bxd4) 34. a4 Re6 35. Rxa6 Bf6 36. Rb1 $2 (36. Rc6 $18) 36... Rc8 $1 $11 {[%cal Rc8c4]} 37. Rb4 Kg7 38. Ra7 Rc5 39. Rc7 Rd5 {[%mdl 1024] Black has compensation.} 40. Kg2 {Rbb7 is the strong threat.} Rf5 {Strongly threatening ...Re2+.} ({Don't play} 40... Re2+ $6 41. Kf3 $16) 41. Rbb7 $1 $132 {[%mdl 2048] White has counterplay} Re2+ 42. Kh3 Bd8 43. Rd7 Rff2 44. Rxd8 h5 {[%csl Ge2][%cal Rf2h2]} 45. Kh4 {Threatens to win with Re7.} Re4+ 46. Kh3 {Black must now prevent Rb2.} Ree2 {[%csl Ge2][%cal Rf2h2]} 47. Kh4 {aiming for Re7.} Re4+ {Precision: White = 44%, Black = 41%.} (47... Rxh2+ $15 48. Kg5 Rhf2) 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Kolev, Atanas"]
[Black "Gorovets, Andrey"]
[Result "0-1"]
[ECO "A81"]
[WhiteElo "2572"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,90,33,22,16,21,45,0,0,0,3,0,32,0,6,6,8,-62,-44,-60,-67,-66,-68,-67,-69,-72,-67,-128,-128,-160,-67,-161,-161,-164,-126,-137,-107,-185,-184,-178,-25,-36,-29,-46,-27,-102,-85,-85,-75,-186,-183,-214,-208,-328,-106,-134,-125,-101,-92,-120,-120,-120,-128,-128,-128,-129,-127,-123,-145,-29971,-29967,-6218,-6083]} 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 d5 5. O-O Bd6 6. c4 O-O 7. Nc3 c6 8. Qc2 Bd7 9. Rb1 {A90: Dutch Defence: Miscellaneous and Modern Stonewall (with ...Bd6)} (9. Bg5 h6 10. Bf4 Bxf4 11. gxf4 Be8 12. c5 Nbd7 13. b4 Ne4 14. Ne5 Nxc3 15. Qxc3 Nxe5 16. dxe5 Kh8 {1-0 (60) Li,C (2720)-Agdestein,S (2602) Doha 2016}) 9... Be8 10. c5 Bc7 11. Bf4 {LiveBook: 4 Games. White is slightly better.} Bxf4 12. gxf4 Bh5 13. Ng5 $146 ({Predecessor:} 13. e3 Nbd7 14. b4 a6 15. Ne5 Ne4 16. Na4 Nef6 {½-½ (38) Cornette,M (2545)-Spraggett,K (2584) Catalunya 2012}) 13... Qe7 14. f3 Nbd7 15. b4 a6 16. Rbe1 h6 17. Nh3 Bg6 18. a4 (18. Qd2 $11) 18... a5 $15 19. bxa5 Rxa5 20. Nf2 b6 21. cxb6 Nxb6 22. Nd3 Rfa8 23. e4 (23. e3 $15) 23... Nxa4 $17 24. Ne5 Be8 (24... Nxc3 $17 25. Qxc3 Qe8 26. Qxc6 Qxc6 27. Nxc6 Ra4 28. Ne7+ Kf7) 25. exf5 (25. Ne2 $1 $15) 25... Nxc3 $19 26. Qxc3 Ra3 (26... exf5 27. Nc4 $14 (27. Nxc6 Qa3 $15)) 27. Qc1 Qb4 ({Don't play} 27... exf5 $6 28. Nc4 $11) 28. fxe6 (28. Kh1 $17) 28... Qxd4+ 29. Kh1 Qc3 $2 (29... Nh5 $1 $19 30. Nxc6 Qf6) 30. f5 c5 31. f4 c4 32. Qd1 (32. Qxc3 $11 Rxc3 33. Rd1) 32... Bh5 $17 33. Bf3 Bxf3+ 34. Nxf3 (34. Rxf3 $17 Qb2 35. Rxa3 Rxa3 36. Qe2) 34... Ra2 $1 $19 35. e7 Re8 36. Rg1 {[#]} (36. Qd4 {was necessary.} Qxd4 37. Nxd4) 36... Kh8 $2 $40 {[%mdl 128] Black is out for blood.} ({Weaker is} 36... Ra7 37. Nd4 $19) (36... d4 $1 $19 {[%mdl 512] is more deadly.} 37. Re6 {[#]} (37. Nxd4 $2 Rd2 $19) (37. Qxd4 Qxf3+) 37... Ng4 $1 {[%mdl 512]} 38. Rxg4 Ra1 39. Qxa1 Qxa1+ 40. Rg1 Qa8) 37. Rg2 $17 Rxg2 38. Kxg2 Nh5 39. Qd4 Qc2+ 40. Kh1 Qxf5 41. Ne5 Kh7 42. Qxd5 Rxe7 43. Qxc4 Nxf4 44. Nf3 $2 {[%mdl 8192]} (44. Rf1 $17) 44... Nd3 45. Rf1 {[#]} Re1 $1 {[%mdl 512] Precision: White = 34%, Black = 55%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Li, Ruifeng"]
[Black "Petrosian, Tigran L"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2571"]
[BlackElo "2595"]
[Annotator "TA"]
[PlyCount "154"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,154,53,45,58,51,46,-16,-17,-14,-11,-97,-88,-90,-90,-77,-16,-81,-80,-108,-94,-113,-43,-44,0,-117,-71,-82,-88,-93,-73,-131,-115,-156,-147,-152,-139,-133,-137,-133,-127,-120,-92,-89,-93,-97,-93,-84,-89,-104,-68,-88,-92,-89,-88,-85,-72,-101,-63,-102,-90,-148,-144,-154,-83,-147,-116,-179,-88,-107,-95,-223,-224,-230,-222,-216,-215,-234,-222,-212,-231,-229,-216,-250,-246,-246,-220,-232,-231,-220,-158,-153,-153,-146,-130,-249,-242,-254,-229,-222,-220,-208,-122,-128,0,0,0,0,0,0,0,0,0,-15,-15,-37,-53,-407,-382,-683,-620,-1637,-1584,-1600,-1579,-1414,-1381,-1264,-1132,-5493,-2306,-12842,-12843,-12843,-12843]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Re1 c6 8. a4 a5 9. h3 h6 10. Ba2 Re8 11. Be3 {C41: Philidor Defence} Qc7 12. Qd2 {LiveBook: 24 Games} exd4 13. Nxd4 {White is slightly better.} Bf8 {[#]} 14. Nf5 $146 (14. f3 $14) ({Predecessor:} 14. f3 Nc5 15. Rad1 Bd7 16. Qf2 d5 17. Nde2 dxe4 18. Bxc5 Bxc5 19. Qxc5 exf3 20. gxf3 Bxh3 {1-0 (27) Berg,E (2601)-Lubczynski,R (2418) Plovdiv 2008}) 14... Nc5 $11 15. Bxc5 dxc5 16. Rad1 (16. Nh4 $11) 16... Bxf5 $1 $17 17. exf5 Rad8 $36 {[%mdl 2048] White is under strong pressure.} 18. Qc1 Rxe1+ 19. Rxe1 Rd4 $1 20. Qe3 Qd7 $1 21. Qf3 Rd2 (21... c4 $17 22. Rd1 Rxd1+ 23. Qxd1 Qxf5 24. Bxc4 Qf4) 22. Nb1 $15 Rd4 ({Weaker is} 22... Rxc2 23. Qb3 $16) (22... Rd6 $15) 23. Nc3 $17 Rb4 24. Rd1 Qe7 25. b3 Rd4 26. Bb1 ({White should play} 26. Kf1) 26... Qe5 {Threatens to win with ...Rxd1+.} 27. Rf1 c4 28. Qe3 Qxe3 29. fxe3 Rd8 $1 30. bxc4 Bc5 31. Re1 Bb4 32. Rd1 Re8 33. Rd3 Bxc3 34. Rxc3 {[%mdl 4096] Endgame KRB-KRN} Ne4 35. Ra3 Nc5 {[%mdl 1024] Black has strong compensation.} 36. Kf2 Re4 $1 37. Ba2 Kf8 38. Bb3 Re8 39. Ra1 Rd8 40. Kf3 Ke7 41. g4 (41. Ke2 $142) 41... Rd2 42. Rf1 {[#]} f6 (42... Kd6 $142 $1 43. Kf4 b6) 43. Kf4 (43. Kg3 $142) 43... Nd7 44. e4 (44. Kg3 $17 {might work better.}) 44... Ne5 (44... Kd6 $19 45. Re1 Ne5) 45. c5 Nd7 46. Ke3 (46. Re1 $17 {keeps fighting.}) 46... Rh2 $19 47. Kd4 {[#]} Ne5 $1 ({Worse is} 47... Rxh3 48. Rb1 $11) 48. Rb1 Kd8 49. Be6 Kc7 50. Rb3 Rxc2 51. Rg3 Rh2 52. Rb3 Rd2+ 53. Ke3 Rd1 54. Rc3 Ra1 55. Bb3 Rf1 56. Ke2 Rh1 57. Kf2 Rh2+ 58. Kg3 (58. Ke1 $17 {was called for.}) 58... Rd2 59. Bc2 Re2 60. Kf4 Rf2+ 61. Ke3 Rf3+ (61... Rg2 $19 62. Kf4 Rf2+ 63. Ke3 Rh2) 62. Kd4 Rxc3 ({Better is} 62... Rf1 $17 63. Rg3 Rf2) 63. Kxc3 $17 {KB-KN} b6 64. cxb6+ Kxb6 65. Bd1 Kc5 66. Be2 Nd7 67. Bd3 Kd6 {Hoping for ...Ke5.} (67... Nb6 $5 {[%cal Rb6a4]} 68. Bc2 Kd6 $15) 68. Kd4 Nb6 69. e5+ $2 {[%mdl 8192]} (69. Bc2 $15) 69... fxe5+ $19 70. Ke4 $2 (70. Ke3 Nxa4 71. h4) 70... Nxa4 {Black is clearly winning.} 71. Bc4 Nb6 72. Ba2 Nd5 73. Bc4 a4 74. h4 a3 75. g5 hxg5 76. hxg5 {[#]} a2 $1 77. Bxa2 Nc3+ {Precision: White = 48%, Black = 69%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Vorontsov, Pavlo"]
[Black "Kiewra, Keaton F"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2492"]
[BlackElo "2429"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,63,7,0,0,2,9,-2,8,14,10,0,0,-12,0,-36,-30,-24,-20,-39,-14,-11,0,6,62,58,64,11,14,11,13,0,13,8,0,0,1,0,0,0,0,0,0,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Be7 5. Bb2 O-O 6. Be2 c5 7. O-O b6 8. cxd5 Nxd5 9. d4 Bb7 10. Nbd2 Nd7 {[%cal Bb8d7,Bd7c5,Bc5e4][%mdl 32] A30: Symmetrical English: Double Fianchetto and Hedgehog} (10... cxd4 11. Nxd4 Nc6 12. Nxc6 Bxc6 13. Nf3 Bb7 14. Rc1 Rc8 15. Qd2 Nf6 16. Rxc8 Qxc8 17. Rc1 Qa8 18. Bd4 {½-½ (37) Chernyshov,K (2567)-Talla,V (2400) Marianske Lazne 2012}) 11. Nc4 Rc8 12. Rc1 {LiveBook: 4 Games} cxd4 13. Nxd4 Nc5 14. a3 $146 ({Predecessor:} 14. Bf3 Ba6 15. Qd2 {½-½ (42) Levenfish,G-Makogonov,V Leningrad & Moscow 1939}) 14... Bf6 15. b4 Ne4 16. Bd3 (16. Qd3 $5 {[%cal Rd3e4]} Nd6 17. Nxd6 Qxd6 18. Nb5 $11) 16... Nd6 17. Qh5 {[%csl Gd3][%cal Rh5h7] [#]} g6 18. Qe2 Nf5 (18... Bxd4 $5 19. Bxd4 Nxc4 20. Bxc4 Nf4 21. exf4 Qxd4 $11) 19. Nxf5 exf5 20. Ne5 Qe7 21. f4 Bg7 22. Bc4 Nf6 ({Better is} 22... Rfd8 $11) 23. Rfd1 $1 $14 Rc7 24. Bb3 (24. Qd3 $14) 24... Rxc1 $11 {The position is equal.} 25. Bxc1 Bc8 $1 26. Nc6 Qc7 (26... Qe8 $5 {[%cal Re8c6]} 27. Nxa7 Be6 $11) 27. b5 Ne4 {Strongly threatening ...Nc3.} 28. Bb2 Bb7 29. Bxg7 Kxg7 30. Qb2+ f6 31. Nd4 Nc5 32. Ne6+ {Precision: White = 51%, Black = 43%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Barcenilla, Rogelio"]
[Black "Raptis, Nick"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2452"]
[BlackElo "2296"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,135,74,0,40,0,0,0,33,25,27,21,21,15,33,22,35,34,40,38,43,15,44,50,95,58,115,62,127,88,86,71,83,39,42,26,75,72,108,90,108,99,107,73,120,60,74,31,39,41,67,23,75,31,119,50,185,88,88,85,132,31,31,31,31,31,31,15,22,22,31,15,31,31,31,0,31,0,30,0,0,0,0,0,0,0,14,0,29975,29976,29976,29977,29977,29978,29978,0,29992,29980,29980,29981,29981,29982,29982,29983,29983,29984,29984,29985,29985,29986]} 1. c4 c6 2. Nf3 Nf6 3. b3 d5 4. Bb2 Bf5 5. g3 e6 6. Bg2 h6 7. O-O Nbd7 8. d3 Be7 9. Nbd2 O-O 10. a3 a5 11. Qc2 Bh7 12. Bc3 b5 13. cxb5 cxb5 14. b4 Rc8 15. Qb3 {LiveBook: 4 Games. A12: English Opening: 1...c6 with b3 by White} (15. bxa5 $16 Nc5 16. Bb4) (15. bxa5 Nc5 16. Bb4 Nxd3 17. Bxe7 Qxe7 18. Qb3 Nc5 19. Qb4 Qa7 20. Rac1 Nce4 21. Nxe4 Bxe4 22. Nd4 Bxg2 23. Kxg2 {½-½ (36) Nguyen,N (2617)-Rodshtein,M (2609) Biel 2010}) 15... Qc7 16. Rfc1 a4 17. Qb2 {The position is equal.} Qb7 18. Rc2 Rfd8 19. Rac1 Ne8 20. Bd4 $146 ({Predecessor:} 20. Bh3 Bf6 21. Bxf6 Ndxf6 22. Nd4 Nd6 23. Rxc8 Rxc8 {1-0 (43) Lutz,G (2089)-Kunze,H (2118) Bayern 2009}) 20... Rxc2 21. Rxc2 Rc8 22. Rxc8 Qxc8 23. e4 Ndf6 {[%cal Rd5e4]} 24. Ne1 Nc7 25. Qc3 Qd7 26. Nc2 Bg6 (26... Na6 $14) 27. Ne3 (27. Nf3 $16) 27... h5 ({Black should play} 27... dxe4 $14 28. dxe4 Nce8) 28. h3 Nfe8 29. f4 f6 30. g4 hxg4 31. hxg4 Bf7 32. e5 f5 33. Bh3 g6 34. Nf3 Na6 35. Bb6 Ng7 36. Nd4 (36. d4 $16) 36... Be8 $14 37. Kf2 {[%cal Bg1f2,Bf2e2,Be2d2][%mdl 32]} Qb7 38. Ba5 Qa7 39. Ke2 Qd7 (39... Nb8 $11) 40. Kd2 fxg4 ({Better is} 40... Nb8 $14) 41. Bxg4 (41. Nxg4 $16 Nf5 42. Nf6+ Bxf6 43. exf6) 41... Nf5 (41... Nb8 $14) 42. Nexf5 (42. Bxf5 $1 $18 {is more deadly.} gxf5 43. Qc1) 42... gxf5 $16 43. Bf3 Nb8 {[#]} 44. Qc1 (44. Nxb5 $1 $16 {[%mdl 512] Nd6! is the strong threat.} Qxb5 45. Qc8) 44... Nc6 $14 45. Qg1+ Kh7 46. Nxc6 Qxc6 47. Bb6 Qd7 48. Qh2+ Kg7 49. Bf2 Qd8 50. Qg1+ Kh7 51. Bb6 Qd7 52. Bc5 Bxc5 53. bxc5 b4 $1 54. axb4 {Threatens to win with Qh2+.} a3 55. c6 Qc7 56. Qa1 Qa7 {aiming for ...Qf2+.} (56... Qxc6 $5 {[%cal Rc6b6]} 57. Qxa3 Qb6 $11) 57. c7 Bd7 $2 {[%mdl 8192]} (57... Qxc7 $11 58. Qxa3 Qb6) 58. Qh1+ Kg7 {[#]} 59. Qg2+ $1 Kf8 60. Qh2 Kg7 {[#]} 61. Qg3+ $1 Kh7 $2 {[%mdl 8192]} (61... Kf8 $11) 62. Qh4+ {White mates.} Kg7 63. Qe7+ Kh6 64. Qxd7 Qf2+ 65. Be2 Qxf4+ 66. Kc2 Qxe5 67. c8=Q Qxe2+ 68. Kb3 {Precision: White = 42%, Black = 42%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Bryant, John Daniel"]
[Black "Moradiabadi, Elshan"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2443"]
[BlackElo "2550"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,134,7,0,4,4,5,4,8,4,10,18,10,9,15,12,0,15,0,6,6,0,-24,-22,-36,-20,-11,4,-16,-13,-25,-34,-16,-18,-24,-30,-47,-53,-50,-41,-41,-42,-53,-20,-68,-66,-79,-79,-76,-57,-50,0,0,0,-64,-31,-44,-30,-54,-37,-78,-78,-78,-78,-78,-68,-84,-82,-94,-81,-118,-118,-124,-119,-121,-108,-106,-110,-118,-107,-140,-139,-139,-134,-136,-119,-236,-183,-221,-225,-186,-82,-113,-118,-222,-203,-367,-364,-344,-350,-369,-130,-139,0,-357,0,-584,-584,-583,-576,-4619,-4618,-29979,-29980,-29980,-29981,-29981,-29982,-29983,-29984,-29984,-29985,-29986,-29985,-29985,-29986,-29988,-29989]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 d6 5. Bc4 dxe5 6. Nxe5 {B22: Sicilian: 2 c3} e6 $1 7. d4 Be7 8. O-O {The position is equal.} O-O 9. dxc5 Bxc5 10. Nd2 Nc6 11. Nef3 Be7 12. Ne4 Nb6 $146 {Threatens to win with ...Qxd1.} ({Predecessor:} 12... Qc7 13. Re1 Rd8 14. Qc2 b6 15. Bd2 Bb7 16. Rad1 Rac8 17. Bf1 Rd7 {0-1 (51) Pierrot,J (2424)-Flores,D (2579) Asuncion 2009}) 13. Bb5 a6 {Hoping for ...Qxd1.} 14. Bxc6 bxc6 15. Bf4 Nd5 16. Bd2 c5 17. c4 Nf6 18. Qe2 Bb7 19. Nxf6+ Bxf6 20. Rad1 Qc7 21. b3 a5 22. Be3 a4 23. Ne1 axb3 24. axb3 Be7 25. Nd3 Bd6 26. Qh5 {[%cal Re3c5]} f5 27. b4 cxb4 28. c5 Be7 (28... Be5 $5 29. Nxb4 Ra4 $17) 29. Nxb4 Bxg2 30. Kxg2 Qb7+ $40 {[%mdl 128] Black mounts an attack.} 31. Nd5 (31. c6 $11 Qxb4 32. Rd7) 31... exd5 32. Qf3 Rad8 33. Bd4 Qc6 34. Rfe1 Bxc5 35. Bxc5 Qxc5 36. Re5 Rd6 37. Rxf5 {[%csl Gf3][%cal Rf5f8]} Qc8 38. Rxf8+ Qxf8 39. Qxf8+ Kxf8 $17 {[%mdl 4096] Endgame KR-KR} 40. Kf3 Kf7 41. Ke3 Re6+ 42. Kf3 Re5 43. Ra1 Kf6 44. Ra7 Re7 45. Ra4 Ke5 46. Ke3 Rb7 47. Rg4 (47. f4+ $17 {keeps fighting.} Kf5 48. Ra5) 47... Rb3+ $19 48. Ke2 g6 49. h4 Rb2+ (49... Rh3 $1 $19 {has better winning chances. Strongly threatening ...d4.} 50. Rg5+ Kd4 51. Rg4+ Kc5) 50. Kf3 Rb6 51. Ra4 (51. h5 $17) 51... Rb3+ 52. Kg2 $2 (52. Ke2 {was forced.}) 52... d4 53. Ra7 h5 54. Ra6 d3 $2 (54... Rb1 $19 {is more deadly. White must now prevent ...d3.} 55. Kf3 Re1 56. Ra5+ Kd6) 55. Kf3 $17 Kd4 (55... d2+ $17 56. Ke2 Rd3 $1 {[%mdl 512]}) 56. Rxg6 $2 {[%mdl 8192] [#]} (56. Ra4+ $1 $11 Ke5 57. Ke3) 56... Kc3 $2 (56... Rb8 $1 $19 {aiming for ...Rf8+.} 57. Rd6+ Kc3 58. Rc6+ Kd2) 57. Ra6 $2 {[%mdl 8192]} (57. Ke3 $11 {and White has nothing to worry.}) 57... Kc2 $19 {( -> ...d2+)} 58. Ra2+ Rb2 59. Ra1 Rb1 60. Ra5 d2 {Black mates.} 61. Rc5+ Kd3 62. Rd5+ Kc3 63. Kf4 d1=Q 64. Rxd1 Rxd1 65. Kg5 Rd5+ 66. Kg6 Kd4 67. f4 Ke4 {Precision: White = 40%, Black = 63%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Aldama Degurnay, Dionisio"]
[Black "He, Anthony B"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2385"]
[BlackElo "2295"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,97,15,0,27,35,65,58,70,70,70,71,79,27,76,83,82,82,82,83,68,85,77,74,204,190,200,200,198,208,205,187,202,202,201,193,201,207,193,198,283,264,276,230,230,216,230,230,230,230,230,223,320,301,337,330,325,325,551,544,531,536,1382,1379,1277,1302,1219,1185,811,745,29968,29971,5197,5189,29978,29977,29981,29982,29982,29983,29984,29985,29987,29988]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. b3 c5 7. e3 Nc6 8. Bb2 Ne4 9. Nbd2 Qc7 {A05: Réti Opening: 1 Nf3 Nf6} (9... Bf5 {is interesting.} 10. c4 e6 11. cxd5 exd5 12. Ne5 cxd4 13. Nxc6 bxc6 14. Nxe4 dxe4 15. Bxd4 Bxd4 16. Qxd4 Qxd4 17. exd4 Rad8) 10. c4 Nxd2 11. Qxd2 ({Much weaker is} 11. Nxd2 dxc4 12. Nxc4 cxd4 $15) 11... cxd4 $146 {White is slightly better.} ({Predecessor:} 11... dxc4 12. bxc4 Rd8 13. d5 Ne5 14. Nxe5 Bxe5 15. Bxe5 Qxe5 16. f4 Qd6 17. e4 {0-1 (46) Harika,D (2507)-Stefanova,A (2489) Khanty-Mansiysk 2014}) 12. cxd5 dxe3 13. fxe3 {Threatens to win with Bxg7.} Ne5 14. Rac1 ({White should play} 14. Bxe5 $16 Bxe5 15. Rac1) 14... Qd6 15. Nxe5 Bxe5 16. Bxe5 Qxe5 17. Qd4 Qxd4 18. exd4 Rd8 19. Rc7 Rd7 {[#]} (19... Kf8 $16) 20. Rfc1 $1 $18 Rxc7 21. Rxc7 {[%mdl 4096] Endgame KRB-KRB} Kf8 {[#]} 22. d6 $1 {[%cal Rd6d7]} exd6 23. Bd5 ({And not} 23. Bxb7 Bxb7 24. Rxb7 a5 $11) 23... Be6 24. Bxe6 ({Weaker is} 24. Bxb7 Re8 $11) 24... fxe6 25. Rxh7 {KR-KR} Kg8 26. Rxb7 a5 27. Re7 Ra6 (27... Rc8 $142 28. Rxe6 Kf7 29. Rxd6 Rc1+ 30. Kf2 Rc2+ 31. Kf3 Rxa2) 28. Rxe6 Kf7 29. Re2 a4 30. Kg2 axb3 31. axb3 Rb6 32. Re3 Rb4 33. Rd3 Ke6 (33... Kf6 $142 34. Kf3 g5) 34. Kf3 Kf5 35. g4+ Kg5 36. Kg3 d5 $2 (36... Kf6 37. h4 Kf7) 37. h4+ Kf6 38. Kf4 g5+ 39. hxg5+ Kg6 40. Ke5 Rb5 41. Kd6 Kxg5 42. Kc6 Ra5 43. b4 {[%cal Bb3b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Ra4 44. Rb3 Kxg4 45. Kxd5 {White mates.} Kf4 46. b5 Ra5 47. Kc6 Ke4 48. b6 Ra8 49. b7 {Precision: White = 87%, Black = 35%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Torres Rosas, Luis Carlos"]
[Black "Lenderman, Aleksandr"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "2360"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,69,-23,-8,-23,-30,-15,-74,-85,-81,-35,-39,-43,-97,-80,-77,-72,-98,-86,-94,-74,-108,-94,-139,-92,-87,-100,-135,-62,-76,-67,-74,-26,-54,0,-38,-25,-8,0,0,0,-7,0,-37,-37,-37,-14,-14,-14,-14,-14,-14,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Bb4 6. e3 h6 7. Bh4 g5 8. Bg3 Ne4 9. Rc1 Bxc3+ 10. bxc3 d6 {E13: Queen's Indian/Nimzo-Indian hybrid: 4 Nc3 Bb7 5 Bg5 h6 6 Bh4 Bb4} 11. Bd3 (11. Nd2 Nxg3 12. hxg3 Nd7 13. g4 Qe7 14. Qa4 Kf8 15. Rh2 c5 16. Be2 Kg7 17. Kf1 Nf6 18. Kg1 e5 19. dxc5 dxc5 20. Bf3 {0-1 (45) Vakhidov,T (2446)-Riazantsev,A (2692) Dubai 2014}) 11... Nd7 12. Qc2 (12. O-O $11 {remains equal.}) 12... f5 $17 {Black is better.} 13. O-O Ndf6 $146 ({Predecessor:} 13... h5 14. h3 Nxg3 15. fxg3 g4 16. Nh4 Qg5 17. Qf2 gxh3 18. gxh3 {0-1 (35) Zea Ruiz,E (1642)-Cerrato Torrijos,M (1988) Madrid 2009}) 14. d5 e5 15. Ne1 (15. Nd2 $15) 15... Qe7 16. f3 Nxg3 17. hxg3 e4 18. fxe4 fxe4 19. Be2 Bc8 20. Qd1 O-O 21. Nc2 Bd7 22. Qd4 Qe5 (22... g4 $17 23. Kh2 Nh5) 23. Rf2 Kg7 24. Rcf1 a5 25. Na3 h5 ({Black should play} 25... Qxd4 $15 26. cxd4 Ng8) 26. Nb1 (26. Qxe5 {is more complex.} dxe5 27. Nb1 Bg4 28. Nd2 Rae8 29. Bd1) 26... Qxd4 (26... Rae8 {is interesting.} 27. Na3 Qxd4 28. cxd4 b5 29. Nxb5 Bxb5 30. cxb5 Nxd5 31. Bxh5 Rxf2 32. Bxe8 Rxf1+ 33. Kxf1 Nxe3+ 34. Ke2 Nc2) 27. cxd4 b5 (27... Rac8 {with more complications.} 28. Nc3 Rcd8 29. Bd1 Rde8 30. Be2 Rb8) 28. cxb5 Nxd5 29. Rxf8 Rxf8 30. Rxf8 Kxf8 $11 {KBN-KBN} 31. Kf2 $1 a4 32. a3 {The position is equal.} Ke7 33. Bc4 Nb6 34. Be2 Nd5 35. Bc4 {Precision: White = 58%, Black = 38%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Ginsburg, Mark"]
[Black "Bitoon, Richard"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2341"]
[BlackElo "2454"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,91,20,16,64,18,32,32,28,0,1,0,36,2,28,10,44,38,62,80,130,137,182,198,331,197,91,5,7,9,22,12,22,0,52,0,44,0,10,30,61,0,0,0,0,0,0,-20,-15,-19,0,-13,-12,-14,-12,-10,0,-106,0,0,11,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. O-O c5 6. Nc3 Be7 7. Re1 d5 8. cxd5 exd5 9. d4 O-O 10. Bf4 Na6 11. Rc1 Qd7 {E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7} (11... Ne4 12. a3 Re8 13. Qa4 cxd4 14. Nxd4 Nac5 15. Qd1 Nxc3 16. Rxc3 Bf6 17. Rc2 Qd7 18. Be3 Rac8 19. Qb1 Ba6 {½-½ (36) Postny,E (2642)-Tiviakov,S (2639) Leiden 2015}) 12. Qd3 $146 (12. Ne5 $5 {[%cal Re5d7]} Qe6 13. dxc5 bxc5 14. e4 dxe4 15. Nxe4 $14) ({Predecessor:} 12. e3 Ne4 13. Ne5 Nxc3 14. bxc3 Qe6 15. h4 f6 16. Nf3 Rac8 17. Qd3 c4 18. Qc2 b5 19. Nd2 {½-½ (19) Horvath,D (2356)-Tompa,J (2380) Hungary 2016}) 12... Rfd8 13. Red1 h6 {White is slightly better.} 14. Qb1 Qe6 15. a3 Bf8 16. h3 Ne4 17. dxc5 Nxc3 18. Rxc3 bxc5 19. Rb3 Bc6 {With the idea ...d4.} 20. Re3 Qc8 21. Ne5 Bb7 (21... Qb7 {might work better.} 22. Nxc6 Qxc6) 22. Rb3 (22. Nxf7 $142 Kxf7 23. Qh7) 22... c4 (22... Rb8 $18 23. Bf3 Qe6) 23. Rxb7 ({White should try} 23. Be4 $16 {White wants to mate with Bh7+.} dxe4 24. Rxd8 Qxd8 25. Rxb7) 23... Qxb7 $11 {[#]} 24. Nxc4 $1 {[%mdl 512]} Nc7 (24... Rac8 $5 {[%cal Rc8c4]} 25. Ne3 Nc7 $11) (24... dxc4 25. Bxb7) 25. Ne3 Bc5 26. Nf5 Ne6 ({Black should play} 26... Rac8 $11) 27. b4 (27. Be5 $14) 27... Bf8 28. Ne3 {[%cal Rg2d5]} (28. Bd6 $5) 28... Nxf4 29. gxf4 {[%cal Rg2d5]} Rab8 30. Nxd5 (30. Bxd5 $14 Qc7 31. Qf5) 30... Qa6 31. Qd3 (31. Qb2 {seems wilder.} Qb5 32. e3 a5 33. Qb3 Qe2 34. Ra1) 31... Qxd3 32. Rxd3 Rbc8 33. Kh2 Bd6 34. e4 f6 35. Kg3 g5 36. Nxf6+ Kf7 37. Nd5 $1 gxf4+ 38. Kh4 {[#]} (38. Kf3 $11) 38... Ke6 (38... Rc2 $1 $17 39. Bf3 Rxf2) 39. Kg4 {The position is equal.} Be5 40. Nxf4+ (40. h4 {looks sharper.} Rg8+ 41. Kf3 Rc2 42. Bh3+ Kf7 43. Bd7) 40... Bxf4 41. Rxd8 Rxd8 42. Kxf4 {KR-KB} Rd2 43. Ke3 Ra2 44. Bf1 $1 {[%cal Rf1c4]} Rxa3+ 45. Bd3 $1 a5 46. bxa5 {Precision: White = 32%, Black = 28%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "5"]
[White "Atoufi, Pedram"]
[Black "Corrales Jimenez, Fidel"]
[Result "0-1"]
[ECO "B63"]
[WhiteElo "2281"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,90,17,67,-104,-103,-105,-98,-110,-110,-121,-112,-117,-122,-115,-120,-134,-126,-174,-171,-203,-177,-169,-160,-220,-171,-214,-170,-166,-157,-152,-143,-155,-150,-151,-131,-146,-106,-113,-83,-102,-101,-125,-128,-145,-154,-154,-155,-185,-180,-172,-172,-196,-192,-211,-211,-210,-206,-211,-211,-205,-202,-220,-204,-381,-382,-450,-437,-410,-352,-549,-529,-517,-529,-1095,-1095,-1147,-1147,-1071,-1068]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Qd2 h6 {LiveBook: 172 Games} 8. Bh4 $2 {[#] B63: Sicilian: Richter-Rauzer: 7...Be7 and unusual Black 7th moves} (8. Bxf6 $1 $14 gxf6 9. Be2) (8. Bxf6 gxf6 9. O-O-O a6 10. f4 Bd7 11. Nf3 Qa5 12. f5 O-O-O 13. Kb1 h5 14. g3 Kb8 15. Bh3 Bc8 16. Rhf1 Be7 17. Ne2 Qa4 18. fxe6 fxe6 {½-½ (75) Proudian,A (2437)-Vera Siguenas,D (2535) Florianopolis 2017}) 8... Nxe4 $1 $17 {[%mdl 512]} 9. Qf4 (9. Nxe4 Qxh4) 9... Nf6 {aiming for ...g5.} 10. Bxf6 {Black is better.} Qxf6 11. Qxf6 gxf6 {[%cal Bg7f6,Bf6f5][%mdl 32]} 12. Ndb5 Kd8 13. O-O-O d5 14. Ne4 f5 $146 ({Predecessor:} 14... a6 15. Nd4 f5 {0-1 (35) Safvat,Y-Addison,W Tel Aviv 1964}) 15. Ng3 a6 16. Nd4 Nxd4 17. Rxd4 Bd7 18. Kb1 (18. Nh5 $17) 18... b5 19. Rd2 Kc7 20. Be2 Rg8 21. Bf3 Bc6 22. Nh5 Rd8 23. g3 Bc5 24. Rhd1 Rd6 25. Nf4 Rgd8 26. Nd3 Bb6 27. Ne5 Be8 28. Bh5 f6 29. Bxe8 fxe5 30. Bf7 Kd7 31. Bh5 Ke7 32. Re2 Kf6 33. Red2 e4 34. Rf1 b4 {[%cal Bb5b4,Bb4a3][%mdl 32]} 35. Rdd1 a5 36. Be2 a4 37. Bb5 a3 38. bxa3 $2 (38. b3 {is a better defense.}) 38... bxa3 $19 39. Ba4 Ba5 40. Bb3 Bc3 41. Rh1 (41. f4 {was worth a try.}) 41... d4 {[%cal Bd5d4,Bd4e3][%mdl 32] Black is clearly winning.} 42. Kc1 e3 43. fxe3 dxe3 44. Rxd6 Rxd6 45. Bc4 Rd2 {Precision: White = 46%, Black = 68%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Petrosian, Tigran L"]
[Black "Gordievsky, Dmitry"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2595"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,65,20,16,31,11,26,28,29,21,58,39,37,33,31,35,43,23,23,16,37,3,46,44,79,79,84,87,74,73,102,40,80,81,76,11,11,26,40,10,33,33,35,36,64,56,174,67,56,43,47,35]} 1. Nf3 c5 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. O-O Bg7 6. Nc3 Nc6 7. e3 Nf6 8. d4 Na5 {A30: Symmetrical English: Double Fianchetto and Hedgehog} (8... cxd4 9. exd4 O-O 10. Re1 e6 11. b3 d5 12. Ba3 Re8 13. Ne5 Bf8 14. Bxf8 Rxf8 15. Nxc6 Bxc6 16. b4 Rb8 17. Rb1 Ba8 18. c5 bxc5 19. dxc5 {1-0 (40) Le,Q (2705)-Safarli,E (2626) Fujairah 2012}) 9. b3 {LiveBook: 7 Games} O-O 10. Bb2 cxd4 {The position is equal.} 11. Qxd4 Ne4 12. Qd3 $1 f5 $146 ({Predecessor:} 12... d5 13. cxd5 Nxc3 14. Bxc3 Qxd5 15. Qxd5 Bxd5 16. Bxg7 Kxg7 {1-0 (39) Buchal,S (2295)-Helmer,C (2062) Germany 2015}) 13. Nd4 {[%cal Rc3e4]} Nc5 14. Qd2 Bxg2 15. Kxg2 Nc6 {[%cal Ba5c6,Bc6e5,Be5g4][%mdl 32]} 16. Nf3 e6 17. Rad1 g5 18. Qc2 a5 19. Nd4 {[#] And now Nxc6 would win.} Ne5 20. f4 Ng4 21. Qe2 gxf4 22. exf4 Qe8 23. Nf3 (23. Ndb5 $16) 23... Qh5 24. h3 Nf6 25. Ne5 (25. Qe3 $16) 25... Qxe2+ $11 26. Nxe2 d5 27. Nc3 {[%cal Rc4d5]} a4 28. cxd5 axb3 29. axb3 exd5 30. Nxd5 Nfe4 {[#]} ({Better is} 30... Nxd5 $14 31. Rxd5 Ne4) 31. Ra1 ({Weaker is} 31. Nxb6 Ra2 $11) ({White should try} 31. Ne7+ $1 $18 Kh8 32. Ra1) 31... Bxe5 $14 32. fxe5 {b4 is the strong threat.} Rxa1 33. Bxa1 {Precision: White = 35%, Black = 31%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Lenderman, Aleksandr"]
[Black "Aldama Degurnay, Dionisio"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2585"]
[BlackElo "2385"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,89,17,12,16,31,39,17,20,13,22,0,8,10,7,0,4,0,33,34,111,100,180,171,172,164,162,171,168,100,163,161,157,156,150,133,128,135,127,125,159,129,188,135,154,124,134,126,164,157,149,132,153,134,177,178,229,231,366,356,350,350,360,354,351,228,415,425,416,404,527,525,497,500]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 O-O 8. Qc2 h6 9. Bh4 Re8 10. Nge2 {[%cal Bg1e2,Be2c1,Bc1d3][%mdl 32]} a5 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2)} (10... Ne4 11. Bxe7 Qxe7 12. Bxe4 dxe4 13. Ng3 f5 14. O-O Qg5 15. Rae1 h5 16. Qb3+ Be6 17. Qxb7 Nd7 18. Nge2 Nf6 19. b3 h4 20. Nf4 Bf7 21. Rc1 {1-0 (31) Kuzubov,Y (2640)-Hayrapetyan,H (2489) Al Ain 2015}) 11. O-O b6 12. Rfd1 $146 ({Predecessor:} 12. f3 c5 13. Bf2 Bb7 14. dxc5 bxc5 15. Rfd1 Nbd7 16. Bb5 Bd6 17. e4 d4 18. Nb1 {½-½ (55) Balazs,G (2174)-Kovacs,B (2302) Hungary 2006}) 12... Ba6 {The position is equal.} 13. Nc1 (13. Bxf6 $5 Bxf6 14. Nf4 $11) 13... Bd6 14. a3 {[%cal Ba2a3,Ba3a4,Ba4b5,Bb5a6][%mdl 32]} Nbd7 15. Bxa6 Rxa6 16. Nd3 Qa8 (16... Qb8 $5 {[%cal Rd6h2]} 17. Bg3 Bxg3 18. hxg3 Ra8 $11) 17. Rac1 b5 (17... Qb8 $5 {[%cal Rd6h2]}) 18. a4 Ne4 (18... Qb8 $14) 19. axb5 $16 Nxc3 (19... cxb5 $16 {might work better.} 20. Nxb5 Bb8) 20. bxa6 $18 ({Resist} 20. Qxc3 $6 cxb5 21. Bg3 b4 $14) 20... Nxd1 21. Qxc6 ({Don't take} 21. Rxd1 $6 Qxa6 22. Rc1 Rc8 $14) 21... Qxc6 22. Rxc6 Bf8 23. Rc1 (23. a7 $18) 23... Ra8 (23... Nxb2 $16 24. Nxb2 Re6) 24. Rxd1 Rxa6 25. Rc1 a4 26. Kf1 a3 27. bxa3 Rxa3 28. Nc5 Ra7 29. Bg3 f5 (29... Be7 $16 30. Nxd7 Rxd7 31. Rc8+ Kh7) 30. Ne6 (30. Nxd7 $18 Rxd7 31. h4) 30... Kf7 31. Nf4 Nf6 32. Nd3 Nd7 33. Bc7 g5 34. Rc2 Ra1+ 35. Ke2 Rg1 36. h3 Be7 (36... Ra1 $142 37. g4 fxg4) 37. Ra2 Bf6 (37... h5 $142 38. Ra7 h4) 38. Ra5 f4 39. Rxd5 Nf8 40. exf4 Ne6 41. fxg5 hxg5 $2 (41... Nxd4+ {was called for.} 42. Ke3 hxg5 43. Rxd4 Bxd4+ 44. Kxd4 Rxg2) 42. Be5 Bxe5 43. Nxe5+ Kf8 {[#] ...Nf4+ is the strong threat.} 44. g3 Rh1 45. Nf3 {[%mdl 32768] Precision: White = 69%, Black = 46%. . An unexpected result.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Moradiabadi, Elshan"]
[Black "Barcenilla, Rogelio"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2550"]
[BlackElo "2452"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,55,18,0,29,39,47,49,49,25,44,43,39,39,38,13,16,18,16,-30,22,0,12,-12,-19,-29,0,0,0,0,0,0,-2,-27,0,0,0,-17]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Bg5 h6 10. Bxf6 Bxf6 11. b4 {LiveBook: 116 Games} Bd7 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1} (11... a5 12. a3 Bg7 13. c5 f5 14. Bd3 Kh8 15. Rc1 axb4 16. axb4 Bd7 17. Nd2 f4 18. Nb5 Rf6 19. Qb3 g5 20. cxd6 cxd6 {1-0 (39) Erdos,V (2614)-Mamedov,R (2689) Minsk 2017}) 12. c5 Kg7 $146 ({Predecessor:} 12... Qe8 13. Nd2 Bg5 14. Nc4 Nc8 15. Na5 Rb8 16. Bg4 f5 17. exf5 gxf5 18. Bh5 Qd8 19. Qb3 {1-0 (42) Burgess,G (2300)-Stentebjerg Hansen,P (2255) Odense 1991}) 13. Nd2 Nc8 {White is slightly better.} 14. Bg4 Bg5 {[#] Strongly threatening ...Bxg4.} 15. Nb3 f5 16. Bf3 Ne7 17. b5 b6 18. c6 Bc8 19. g3 Ng8 ({Black should try} 19... f4) 20. a4 a5 21. bxa6 Bxa6 22. Be2 Bxe2 23. Qxe2 f4 24. Nd2 h5 25. Nf3 Bh6 26. Nd2 Bg5 27. Nf3 Bh6 28. Rfb1 {Precision: White = 49%, Black = 52%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Corrales Jimenez, Fidel"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2524"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,127,0,13,10,0,0,0,0,0,0,0,0,-17,0,-1,-6,-31,0,0,0,-14,-14,-22,0,-12,0,0,0,-12,0,-8,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bg5 h6 8. Bh4 g5 9. Bg3 Bg7 10. Be2 h5 11. Bxg4 Bxg4 12. f3 Bd7 13. Qd2 Nc6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (13... g4 14. Bf2 Nc6 15. O-O-O Ne5 16. f4 Nc4 17. Qe2 Rc8 18. e5 Rh6 19. Rhe1 Kf8 20. Bh4 dxe5 21. Nb3 {0-1 (39) Brodsky,D (2303)-Xiong,J (2476) Philadelphia 2015}) 14. Nxc6 bxc6 15. Bf2 Qa5 16. Bd4 Bxd4 17. Qxd4 {[%cal Rd4h8] [#]} f6 18. Qd2 $146 ({Predecessor:} 18. O-O Rb8 19. b3 Qb6 20. Qxb6 Rxb6 21. Na4 {½-½ (41) Kuehn,P-Wilhelmi,C Germany 1993}) 18... Rb8 19. b3 h4 20. h3 Qe5 21. O-O $1 {The position is equal.} Kf7 22. Rad1 a5 23. Kh1 Be6 24. Qd3 Rb4 25. Ne2 c5 {[%cal Bc6c5,Bc5c4][%mdl 32]} 26. a3 {[%cal Ba2a3,Ba3b4,Bb4b5,Bb5b6][%mdl 32]} c4 27. Qe3 $1 Rb7 {[%cal Rc4b3]} 28. Nd4 cxb3 29. cxb3 Rc7 30. b4 axb4 31. axb4 Rhc8 32. b5 Rc3 33. Qd2 R3c4 34. b6 Rb8 35. Nxe6 Qxe6 36. Rb1 Rc6 37. Qa5 Rb7 (37... Rc5 $5 {[%cal Rc5a5]} 38. Qa7 Qc8 $14) 38. Rb4 Rc5 39. Qa6 Qc8 $1 40. Qa2+ Kg7 41. Qd2 Rc2 42. Qd4 Rc1 43. Rxc1 Qxc1+ $11 {[%mdl 4096] Endgame KQR-KQR} 44. Qg1 Qc5 45. Qb1 Kf7 46. Rb5 Qf2 47. Rb2 (47. e5 $5) 47... Qd4 48. Qa2+ Kg7 49. Qb3 Qc5 50. Rb1 Kf8 51. Kh2 Ke8 52. Qa4+ Kd8 53. Rb5 Qc6 54. Qb3 Kd7 55. Rb4 Qc5 56. Qa4+ Qc6 {White must now prevent ...Qxa4.} 57. Qa6 Ke6 58. Qa8 Kf7 59. Qa2+ Kg7 60. Qe6 Qc1 61. Qb3 Qf4+ 62. Kh1 Qc1+ 63. Kh2 Qf4+ 64. Kh1 {Precision: White = 64%, Black = 74%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Gorovets, Andrey"]
[Black "Nyzhnyk, Illya"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2524"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,105,13,8,29,7,36,49,93,89,117,130,117,135,126,142,117,122,117,118,139,108,97,114,118,8,0,0,0,-46,-54,-65,-60,-55,-70,-64,-58,-65,-73,-74,-80,-82,-80,-75,-62,-109,-65,-107,-22,-45,0,0,0,-48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0]} 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 c5 5. c3 Nc6 6. Ngf3 Be7 7. Bd3 h6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (7... Nh5 8. Be5 Nxe5 9. dxe5 g6 10. Qe2 Bd7 11. O-O O-O 12. g3 Qc7 13. e4 Rae8 14. Rfe1 c4 15. Bc2 Bc5 {½-½ (34) Granda Zuniga,J (2648)-Melkumyan,H (2653) Germany 2017}) 8. Qe2 O-O 9. g4 $146 ({Predecessor:} 9. dxc5 Bxc5 10. e4 dxe4 11. Nxe4 Nd5 12. Bxh6 gxh6 13. Nxc5 b6 14. Bb5 Nce7 15. Ne4 Nf4 16. Nf6+ Kg7 17. Qe5 Nxg2+ 18. Kf1 Nf5 19. Rg1 {0-1 (19) Rua,N-Chaucanes,J Medellin 2001}) 9... Qb6 {White is slightly better.} 10. O-O-O c4 11. Bb1 $1 Qa5 12. Rdg1 $1 Ba3 13. bxa3 {And now Kb2 would win.} Qxc3+ 14. Kd1 Qa1 {[#]} 15. Ke1 $1 c3 {White must now prevent ...c2.} 16. Qd1 {aiming for Bh7+!} cxd2+ 17. Nxd2 {Hoping for Bh7+!} Ne4 {[#]} 18. Bxe4 (18. g5 $1 $16) 18... Qxd1+ $11 19. Kxd1 dxe4 20. Nxe4 f6 $1 {[%cal Bf7f6,Bf6e5][%mdl 32]} 21. Nd6 e5 22. Nxc8 Raxc8 23. dxe5 Nxe5 24. Bxe5 fxe5 $15 {[%mdl 4096] Endgame KRR-KRR} 25. Ke2 Rc2+ 26. Kd3 Rxa2 27. Ke4 Rfxf2 28. Ra1 Rxh2 29. Kxe5 Kf7 ({Black should try} 29... a6 $17 30. Rhb1 Rxa1 31. Rxa1 Re2) 30. e4 $11 Ke7 31. Rxh2 Rxa1 {KR-KR} 32. Rc2 Rd1 33. Rc8 {The position is equal.} Rd8 34. Rc7+ Rd7 35. Rc8 b6 36. Kf5 Rd8 37. Rxd8 Kxd8 {KP-KP} 38. Kg6 Ke7 {Strongly threatening ...Kf8.} 39. Kxg7 b5 $1 40. Kxh6 {Threatens to win with g5. K3P-KPP} a5 $1 41. g5 {g6 is the strong threat.} b4 42. axb4 axb4 {KPP-KP} 43. g6 {White threatens g7 and mate.} b3 44. g7 b2 $1 ({And not} 44... Kf7 45. Kh7 Kf6 46. g8=Q Ke5 47. Qd5+ Kf4 48. Kg8 Ke3 49. e5) 45. g8=Q {White wants to mate with Qb8.} b1=Q {KQ-KQ} 46. Qh7+ Ke6 47. Qf5+ Ke7 48. Qe5+ Kf7 49. Qg7+ Ke6 50. Qg8+ Ke7 51. Qg5+ Ke6 52. Qd5+ (52. Kg7 $5 {[%cal Rg5f6]} Qb7+ 53. Kg6 Qxe4+ 54. Kh5 $11) 52... Ke7 53. Qe5+ {Precision: White = 76%, Black = 69%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "De Firmian, Nick E"]
[Black "Vorontsov, Pavlo"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2492"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,129,33,-8,-8,0,0,0,0,0,0,0,0,0,-4,-29,-19,-35,-18,-62,-63,-55,-58,-70,-49,-64,-51,-51,-50,-100,-61,-82,-68,-76,-75,-133,-131,-131,-130,-138,-112,-140,-116,-157,-166,-153,-81,-84,-91,-81,-87,-72,-64,-79,-50,-93,-97,-133,-134,-123,-133,-133,-116,-125,-106,-100,-41,-61,0,0,0,0,224,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,118,113,266,266,241,233,327,321,371,378,380,339,710,692,847,787,904,828,1537,1478,2047,2070,3314,4106,2916,3413]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 {[#]} 5. Nxe4 $1 {[%mdl 512]} Be7 (5... Nxe4 6. Bxd8) 6. Bxf6 gxf6 7. Nf3 f5 8. Ned2 c5 {C13: French: Classical System: 4 Bg5 Be7, Alekhine-Chatard Attack} 9. Nb3 (9. dxc5 Qa5 10. g3 Qxc5 11. Bg2 Qb5 12. Qc1 Bf6 13. Rb1 Bd7 14. c4 Qa4 15. O-O Qxa2 16. c5 O-O 17. b4 a5 18. b5 a4 19. Nc4 a3 {0-1 (19) Horvath,A (2536)-Gupta,A (2638) Abu Dhabi 2014}) 9... cxd4 10. Qxd4 Bf6 $146 {The position is equal.} ({Predecessor:} 10... Qxd4 11. Nfxd4 Bd7 12. Nb5 Kd8 13. O-O-O a6 14. Nd6 Bxd6 15. Rxd6 Kc7 16. Rd2 Rg8 17. f3 Bc6 18. Na5 Nd7 19. Nxc6 {½-½ (19) Simons,M (2096)-Stewart,A (2069) England 2014}) 11. Qxd8+ Kxd8 12. O-O-O+ Kc7 13. g3 Nc6 14. Bg2 e5 15. Nfd2 Be6 16. Nf1 Bg5+ 17. Kb1 Rad8 18. Ne3 Bxe3 19. fxe3 Rxd1+ 20. Rxd1 h5 21. Nc5 h4 22. gxh4 Rxh4 23. h3 e4 24. a3 (24. Kc1 $142) 24... Rh6 $17 25. Bf1 Rg6 26. Kc1 Ne5 27. b3 Kc6 28. Na4 Rg3 29. Kd2 Ng6 (29... a6 $142 $1 30. Nc3 Nf3+ 31. Ke2 Nh2) 30. Nc3 Kd6 31. Ne2 Rg5 $1 32. Ke1+ Ke5 33. Rd4 $1 f4 34. h4 Rh5 35. Rb4 Rxh4 36. exf4+ Nxf4 37. Rb5+ Kd6 {Strongly threatening ...Nxe2.} 38. Nxf4 Rxf4 39. Rxb7 {[%mdl 4096] Endgame KRB-KRB} Ke5 ({Better is} 39... Rh4 $17 40. Kd2 f5) 40. Rxa7 $15 Kd4 (40... Rh4 $1 $15) 41. a4 {[%cal Ba3a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} (41. b4 $5 {[%cal Rb4b5]}) 41... Rh4 42. a5 Rh1 $2 (42... Rh5 $1 $11 {and Black stays safe.}) 43. Re7 $2 (43. a6 $18) 43... Rh5 $11 44. a6 {Threatens to win with b4.} Ra5 $1 45. Kf2 e3+ 46. Kg3 Rg5+ 47. Kh4 Rg4+ 48. Kh5 Rg8 49. a7 {Rb7 is the strong threat.} Ke5 {And now ...Kf6 would win.} 50. Rb7 Bd5 51. Rb8 Rg1 $1 {[%cal Rg1f1]} ({Don't go for} 51... Bf3+ $2 52. Kh4 $18) 52. Rb5 Kf4 {[#]} (52... Rh1+ $11 53. Kg5 f6+ 54. Kg6 Rg1+ 55. Kh7 Rh1+ 56. Kg7 Rg1+ 57. Kh7 Rh1+ 58. Kg7 Rg1+ 59. Kf8 Rg8+ 60. Ke7 Rg7+ 61. Kd8 Rxa7) 53. Kh6 $1 $16 Bf3 $2 {[#]} (53... Rh1+ $16 54. Kg7 Rxf1 55. Rxd5 Ra1 56. Rd4+ Kg3) 54. Bd3 $1 $18 {Hoping for Rf5+.} ({Resist} 54. Rb4+ $6 Ke5 $16) 54... Ra1 55. Rf5+ Kg3 (55... Kg4 {keeps fighting.}) 56. Rxf7 e2 {[#]} 57. Bxe2 $1 {[%mdl 512]} Bxe2 {KRB-KR} 58. b4 {[%cal Bb3b4,Bb4b5,Bb5b6][%mdl 32]} Bc4 $2 (58... Kg4 59. Kg7 Kg3) 59. Rc7 {White is clearly winning.} Be2 60. Kg5 Bf3 61. b5 Ra5 62. c4 {[%cal Bc2c4,Bc4c5][%mdl 32]} Be2 63. Kf6 Kf4 64. b6 Bf3 65. c5 {Precision: White = 68%, Black = 55%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Bitoon, Richard"]
[Black "Abdumalik, Zhansaya"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2454"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,62,14,7,16,-10,24,0,16,-13,-10,-10,-5,-22,-27,-27,-7,-21,0,-16,10,16,22,10,14,7,49,43,47,0,0,0,0,0,0,0,0,-24,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. c4 c5 7. bxc5 dxc5 8. O-O Nc6 9. d3 Bf5 {A05: Réti Opening: 1 Nf3 Nf6} (9... Rb8 10. Nc3 b6 11. e3 Bb7 12. Qe2 e6 13. Rfd1 Qe7 14. Rac1 Rfd8 15. d4 Na5 16. Ba3 Nd7 17. Nb5 {1-0 (70) Edouard,R (2636)-Bartel,M (2622) Berlin 2015}) 10. Nbd2 Qc8 $146 ({Predecessor:} 10... Qd7 11. Nb3 b6 12. Re1 Rad8 13. a4 a5 14. Ne5 Nxe5 15. Bxe5 Ng4 16. Bxg7 Kxg7 17. Qc1 {½-½ (37) Schmittdiel,E (2460)-Loetscher,R (2402) Dortmund 2012}) 11. Rb1 b6 12. Re1 Bh3 13. Bh1 Qc7 14. a4 Rad8 15. Bc3 Nh5 16. Bxg7 Kxg7 17. Qc1 h6 18. Ne4 Nf6 19. Qc3 Rfe8 20. Nfd2 e5 (20... g5 {is more complex.}) 21. Nxf6 Kxf6 22. f4 (22. Bxc6 $5 Qxc6 23. f3 $14) 22... Kg7 23. fxe5 Nxe5 24. a5 h5 25. axb6 axb6 26. Bd5 f6 (26... h4 $5) 27. Nf3 {The position is equal.} Nxf3+ 28. exf3 Bf5 29. Qb3 Qb8 30. Kf2 Rxe1 31. Rxe1 Re8 {Precision: White = 69%, Black = 55%.} 1/2-1/2

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Schmakel, Sam A"]
[Black "Li, Ruifeng"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "2344"]
[BlackElo "2571"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,132,0,2,-12,-19,-34,0,-52,-55,-116,-115,-201,-218,-212,-180,-320,-316,-345,-360,-376,-376,-366,-374,-292,-334,-373,-373,-372,-363,-350,-335,-358,-376,-376,-372,-376,-343,-340,-284,-385,-381,-388,-373,-358,-373,-607,-362,-353,-291,-288,-134,-139,-137,-135,-139,-147,-147,-155,-151,-182,-182,-182,-182,-182,0,-176,-172,-162,-139,-171,-154,-170,-110,-110,-110,-110,-110,-110,-110,-114,-111,-137,-137,-128,-130,-161,-114,-128,0,-146,-144,-325,-332,-332,-332,-318,-329,-310,-317,-1097,-820,-2111,-1647,-29969,-29970,-29972,-29973,-29965,-5061,-4674,-4702]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nge7 5. O-O g6 6. c3 Bg7 7. d4 exd4 8. cxd4 b5 {C60: Ruy Lopez: Unusual Black 3rd moves and 3...g6} 9. Bb3 O-O 10. h3 d6 11. Nc3 (11. Re1 Na5 12. Bc2 c5 13. Nc3 cxd4 14. Nxd4 {0-1 (27) Najer,E (2679)-Grischuk,A (2737) Doha 2016}) 11... Na5 12. Bc2 c5 {LiveBook: 108 Games} 13. Bf4 cxd4 $146 ({Predecessor:} 13... Nc4) 14. Nxd4 Nc4 15. Rb1 (15. Bb3 $11) 15... Bb7 $15 16. Qd3 ({White should try} 16. Re1 $15) 16... d5 $1 $17 {[%cal Rd5e4] White must now prevent ...dxe4.} 17. Rfd1 (17. e5 $17 {was necessary.}) 17... dxe4 $19 18. Nxe4 Qb6 19. Bg5 (19. Ne2 $142) 19... Rfd8 20. Bxe7 Rxd4 21. Qe2 Re8 22. Rxd4 Bxd4 ({Much less strong is} 22... Qxd4 23. Bf6 $19) 23. Bb4 Bxe4 24. Bxe4 a5 25. b3 axb4 26. bxc4 bxc4 27. Qf3 Re6 28. Rf1 c3 29. Bc2 Rf6 30. Qe2 h5 31. g3 Qd6 {( -> ...Qxg3+)} 32. Kg2 {[#]} h4 $1 {[%mdl 512]} 33. gxh4 Qf4 34. Bb3 $2 (34. h5 Be5 35. Rh1) 34... Qxh4 35. f4 Kg7 36. Qg4 Qxg4+ (36... Qh8 $19 {and Black stays clearly on top.} 37. f5 Qa8+ 38. Qf3 Qc8) 37. hxg4 {[%mdl 4096] Endgame KRB-KRB} Be3 38. f5 Rc6 {Threatens to win with ...c2.} 39. fxg6 fxg6 40. Kf3 Bg5 {aiming for ...c2.} 41. Rf2 Bd2 42. Bc2 Ra6 43. Bb3 Rc6 44. Bc2 Re6 45. Rf1 Bg5 46. Rd1 Ra6 47. Bb3 Ra3 (47... Rf6+ $19 48. Ke2 Rf4) 48. Rd7+ $17 Kh6 49. Rc7 Ra6 50. Rc4 Be7 51. Re4 Rf6+ 52. Kg2 Bd6 53. Rd4 Kg5 54. Bd1 Bf8 55. Kg3 {And now Rd5+ would win.} Bd6+ 56. Kg2 Kh4 57. Rc4 $2 {[#]} (57. Bc2 $17) 57... Bg3 $1 $19 58. Bf3 {[#]} Bf4 $1 59. Kf2 Bg5 60. Rc8 {With the idea Rh8+.} Kh3 61. Rh8+ $2 (61. Rc4) 61... Bh4+ 62. Ke2 Kg3 63. Bd5 Rf2+ 64. Kd3 Rd2+ 65. Ke4 c2 (65... Bf6 $142 66. Rc8 Rd4+ 67. Ke3 Rxd5 68. Rc6 Bg5+ 69. Ke4 Ra5 70. Kd3 Rxa2 71. Rc7 Rf2 72. Rc5 Kxg4 73. Rc6 b3 74. Rxc3 Rf3+ 75. Kc4 b2 76. Rd3 Rxd3 77. Kxd3 b1=Q+ 78. Kc4 Qb6 79. Kc3 Qc5+ 80. Kd3 Bf4 81. Ke2 Qe3+ 82. Kf1 Bh2 83. Kg2 Qg1#) 66. Rc8 Bf6 {Precision: White = 49%, Black = 73%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Ginsburg, Mark"]
[Black "Gurevich, Dmitry"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2341"]
[BlackElo "2454"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,70,-2,0,2,-33,-17,-66,-68,-62,-66,-90,-43,-58,-54,-94,-95,-104,-93,-110,-94,-96,-9,-109,-102,-129,-125,-186,-172,-170,-174,-204,-176,-245,-252,-245,-238,-333,-335,-401,-388,-477,-458,-476,-477,-475,-456,-882,-881,-1342,-1246,-29990,-29991,-29991,-29992]} 1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. g3 c5 5. Bg2 Nc6 6. O-O d4 7. d3 {A13: English Opening: 1...e6} (7. e3 Be7 8. exd4 cxd4 9. d3 O-O 10. Re1 Ne8 11. a3 a5 12. Nbd2 f6 13. Rb1 e5 14. Nh4 Nc7 15. Qh5 Qe8 16. Qxe8 Rxe8 {½-½ (132) Topalov,V (2761)-Nakamura,H (2787) Leuven 2016}) 7... Bd6 8. e3 O-O 9. exd4 cxd4 10. Ba3 {LiveBook: 7 Games} e5 11. b4 $146 ({Predecessor:} 11. Re1 Re8 12. Bxd6 Qxd6 13. Nbd2 Bf5 14. Qc2 Nb4 15. Qd1 Bxd3 16. Ng5 Nc2 17. Nde4 Nxe4 18. Nxf7 Kxf7 19. Qxd3 Nxe1 20. Qxe4 Nxg2 {0-1 (20) Carlstedt,J (2442)-Fridman,D (2649) Berlin 2015}) 11... a6 12. Qb3 h6 13. Nbd2 Be6 14. Rfe1 Re8 15. Rab1 Qd7 16. Rec1 b5 17. Qd1 Rac8 18. Ne1 Rc7 19. Qe2 Rb8 (19... Bf8 $17 20. Nef3 Rcc8) 20. Nc2 (20. c5 $11 Be7 21. Bxc6 Qxc6 22. Nef3) 20... bxc4 $17 21. Nxc4 {[#]} Rb5 $1 22. Bb2 (22. Re1 $17 {was called for.}) 22... Nxb4 $19 23. Nxd6 Qxd6 24. a4 {[#]} Rb8 $1 25. Nxb4 (25. Ba3 $142 a5 26. Nxb4 Rxc1+ 27. Bxc1) 25... Rxb4 26. Rxc7 Qxc7 27. Rc1 Qb8 28. Ba3 Rxa4 29. Bc5 Ra2 30. Qe1 Ng4 31. Rb1 Qc7 32. Qe4 (32. Qb4 $142 Nxf2 33. Qb8+ Qxb8 34. Rxb8+ Kh7 35. Rb7) 32... Nxf2 33. Qa8+ Kh7 34. Qf8 Nh3+ 35. Kh1 Rxg2 {Precision: White = 30%, Black = 72%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.18"]
[Round "6"]
[White "Raptis, Nick"]
[Black "Bryant, John Daniel"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2296"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,88,-5,45,21,50,41,48,51,48,45,53,27,40,33,77,48,64,59,72,-24,-13,-51,48,-24,-20,-34,-20,-18,229,214,217,184,205,188,318,283,349,-335,115,81,299,346,425,434,520,529,519,506,728,698,1199,1153,1169,232,205,202,226,188,184,153,158,157,162,131,172,159,273,256,259,252,263,266,222,240,196,0,126]} 1. d4 c5 2. d5 e6 3. c4 exd5 4. cxd5 d6 5. Nc3 g6 6. e4 Bg7 7. f4 a6 (7... Bxc3+ $5 8. bxc3 Nf6 $11) 8. Nf3 {A43: Schmid Benoni} Bg4 9. a4 Ne7 10. Be2 {White is slightly better.} (10. Bc4 Nd7 11. O-O O-O 12. Qd3 Nb6 13. Nd2 f5 {1-0 (32) Agopov,M (2458)-Kiik,K (2374) Jyvaskyla 2015}) 10... O-O 11. O-O Nd7 12. Be3 (12. h3 $5 {[%cal Rh3g4]} Bxf3 13. gxf3 $11) 12... Re8 13. Bf2 h6 $146 ({Predecessor:} 13... Qa5) 14. h3 Bxf3 $1 15. Bxf3 Rb8 16. g4 (16. Qc2 $16) 16... g5 $11 17. e5 dxe5 (17... gxf4 $15 18. exd6 Nc8) 18. f5 ({Better is} 18. fxg5 $14 hxg5 19. Be4) 18... Nf6 19. Bxc5 Bf8 (19... Rc8 $5 {[%cal Rc8c5]} 20. Ba7 Rxc3 21. bxc3 e4 $14) 20. Qb3 Nxf5 $2 (20... Nc8 $11 21. Bxf8 Kxf8) 21. Bb6 $1 $18 {[%cal Rb6d8]} ({Stronger than} 21. Bxf8 Nd4 $17) 21... Qd6 22. gxf5 {Strongly threatening Ne4.} e4 23. Bg2 Qe5 (23... g4 $142) 24. Rfe1 Bd6 25. Be3 $4 {[%mdl 8192]} (25. Nxe4 $1 $18 {is the narrow road to win.} Qh2+ 26. Kf1 Nxe4 27. Rxe4) 25... g4 $2 (25... Qh2+ $19 26. Kf1 Nh5) 26. hxg4 $16 Nxg4 $2 (26... Qh2+ $16 27. Kf1 Qg3) 27. Nxe4 $18 Qh2+ 28. Kf1 Re5 29. Nxd6 Qg3 {[%cal Re5e3]} 30. Be4 Rxe4 31. Nxe4 Qf3+ 32. Kg1 Kh7 33. Ba7 $2 (33. d6 Ne5 34. Qc2) 33... Qxb3 34. Bxb8 Qxd5 35. Rad1 Qxf5 36. Bg3 Qf3 37. Rd7 Kg6 {And now ...f5 would win.} 38. Bf2 $1 (38. Rxb7 f5 $11) 38... h5 39. Rd2 ({Not} 39. Rxb7 h4 $11) 39... Qh3 (39... a5 $16 {might work better.} 40. Rd8 f6) 40. Bg3 $1 h4 41. Bb8 Qf3 {[#]} 42. Nf2 $1 {[%cal Rf2g4] Threatens to win with Nxg4.} Ne3 {[%csl Ge3][%cal Rf3g2]} 43. Nd1 Ng4 {[#]} 44. Nf2 (44. Rf1 $1 $18 {[%cal Rf1f3]} Qe4 45. Nf2) 44... Ne3 {Precision: White = 47%, Black = 36%.} 1/2-1/2

