[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Bok, Benjamin"]
[Black "De Vreesse Pieters, Seppe"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2643"]
[BlackElo "2229"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,73,50,31,87,63,71,77,58,58,122,126,138,145,177,182,168,167,209,188,282,287,328,328,418,415,585,585,576,577,609,600,735,770,763,760,746,746,665,518,512,515,515,496,566,562,560,560,549,548,625,614]} 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 Nf6 5. g3 O-O 6. Bg2 Nc6 7. O-O Bf5 8. Ne1 Na5 9. e4 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} Bg4 10. f3 Bd7 11. b3 c5 12. Nc2 Nc6 13. Be3 {[#] LiveBook: 8 Games} b6 $146 (13... Qa5 $14 14. Qd3 a6) ({Predecessor:} 13... Qa5 14. Qd2 a6 15. a3 cxd4 16. Nxd4 Nxd4 17. Bxd4 {½-½ (35) Georgiev,K (2636)-Smirin,I (2663) Khanty-Mansiysk 2013}) 14. Qd2 e5 15. dxe5 dxe5 16. Bg5 Be6 (16... Qe8 $14) 17. Nd5 $16 Bxd5 18. cxd5 Nd4 19. Nxd4 cxd4 {[#]} 20. Bh3 $1 Qd6 21. Rac1 Nxd5 (21... Qe7 {might work better.} 22. Rc6 Rad8) 22. exd5 $18 Qxd5 23. Rc7 f5 24. Rfc1 Rf7 (24... Kh8 $142 25. Bf1 f4) 25. Bf1 {White is clearly winning.} Rxc7 26. Rxc7 Qd6 27. Qc2 Kh8 28. Be7 {[#] White threatens Rc8+ and mate.} Qd5 29. Rc8+ Rxc8 30. Qxc8+ Qg8 31. Qxg8+ Kxg8 32. Bc4+ Kh8 33. Kf2 Bh6 34. Bd6 e4 35. fxe4 fxe4 36. Bd5 e3+ 37. Ke2 {Accuracy: White = 96%, Black = 21%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Baryshpolets, Andrey"]
[Black "Carreto Nieto, Geovanni"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2578"]
[BlackElo "2213"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 32,97,49,46,49,40,40,28,26,30,23,36,120,39,68,49,50,43,51,43,54,36,42,50,48,50,51,43,50,41,58,0,0,0,0,0,103,103,590,590,590,588,581,583,583,574,595,595,595,595,595,595,595,588,588,581,693,557,1762,1557,1296,1266,6170,5479,29970,29970,29968,29969]} 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Bg7 6. Be3 Nf6 7. Nc3 O-O 8. Be2 d6 9. O-O Nxd4 10. Bxd4 Bd7 11. Qd2 Bc6 12. f3 a5 13. b3 Nd7 14. Bf2 Nc5 15. Rab1 Qb6 16. a3 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} Qd8 17. Bd1 {LiveBook: 9 Games} Qb8 18. Bc2 {White is slightly better.} Rc8 19. Rfe1 $146 ({Predecessor:} 19. a4 Rc7 20. Rbe1 Qf8 21. f4 e6 22. Bxc5 dxc5 23. e5 f6 {½-½ (32) Hernandez,G (2485)-Petursson,M (2550) Linares 1994}) 19... b5 20. cxb5 Bxb5 {And now ...Bxc3 would win.} 21. Nd5 Ra7 {[#]} ({Black should play} 21... Qb7 $14) 22. b4 (22. e5 $1 $16) 22... axb4 $14 23. Rxb4 e6 {[#]} 24. a4 $1 {[%mdl 512]} exd5 (24... Bxa4 25. Rxb8) 25. Rxb5 Qa8 26. Bxc5 Rxc5 27. Rxc5 dxc5 28. Qxd5 ({Reject} 28. exd5 Bd4+ 29. Kh1 Qxd5 $15) 28... Bd4+ 29. Kh1 Qb8 30. e5 Qb2 31. Bb3 (31. Qe4 $14) 31... Qc3 $11 {[%cal Rc3e1]} 32. Qd8+ Kg7 {[%cal Rc3e1]} 33. Qf6+ Kg8 {[#]} (33... Kh6 $11 {remains equal.} 34. Qh4+ Kg7) 34. Rb1 $1 $16 {White threatens Bxf7+! and mate.} ({But not} 34. Qd8+ $6 Kg7 $11) 34... Bxe5 $2 {[%mdl 8192] [#]} (34... c4 $16 35. Bxc4 Bc5) 35. Bxf7+ $1 $18 {[%mdl 512]} Rxf7 {[#]} 36. Rb8+ $1 {[%mdl 576] Deflection} Bxb8 {[%cal Rc3e1]} 37. Qxc3 {[%mdl 4096] Endgame KQ-KRB} Ba7 38. g3 Re7 39. Qf6 Rf7 40. Qe6 Kg7 41. Kg2 Bb8 42. Qc6 Ba7 43. Qd6 Rf8 44. f4 Rf5 45. g4 {[%cal Bg3g4,Bg4f5,Bf5f6][%mdl 32]} Rf7 46. Qe5+ Kg8 47. f5 gxf5 48. gxf5 c4 49. f6 {Accuracy: White = 68%, Black = 43%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Gonzalez Vidal, Yuri"]
[Black "Acosta Cruz, Oscar Yosimar"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2553"]
[BlackElo "2212"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,59,79,81,95,65,66,69,87,67,80,81,116,60,68,62,80,54,98,33,34,34,158,147,332,312,311,291,392,402,382,394,29997,29994]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. e4 d6 5. d4 cxd4 6. Nxd4 Bg7 7. Be2 a6 8. O-O O-O 9. Be3 Bd7 10. Qd2 Re8 11. f3 Nc6 12. Rfd1 Rc8 13. Rac1 Nxd4 14. Bxd4 Bc6 15. b4 {LiveBook: 3 Games. B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} b6 16. Kh1 $146 ({Predecessor:} 16. Bf1 Nd7 17. Be3 a5 18. a3 axb4 19. axb4 Ra8 20. Qf2 Qb8 21. Nd5 Bxd5 22. cxd5 b5 23. Qe2 Ra3 24. Bf2 Ne5 25. Bd4 Rb3 26. Qd2 Rc8 27. Rxc8+ {½-½ (27) Dochev,D (2357)-Raev,R (2338) Pleven 2005}) 16... Nd7 17. Bxg7 {White is slightly better.} Kxg7 18. f4 Qc7 19. e5 Nf8 20. Nd5 (20. b5 $16 axb5 21. cxb5 (21. Nxb5 Qd7 $14)) 20... Bxd5 21. cxd5 {[%cal Bc4d5,Bd5c6][%mdl 32]} Qb7 22. exd6 exd6 {[#]} 23. Bf3 (23. Rc6 $1 $16) 23... Rxc1 $14 24. Rxc1 Rc8 ({Black should try} 24... Kg8 $14) 25. Rc6 $36 {[%mdl 2048] aiming for Qc3+. Black is under strong pressure.} Rxc6 $2 (25... Rd8 $16 26. Qd4+ Kg8 27. Qxb6 (27. Rxb6 Qa7 $16) 27... Rb8 28. Qxb7 (28. Qxa6 Qxb4 29. Rc1 Qxf4 $11) 28... Rxb7) 26. dxc6 $18 Qc7 27. g4 Ne6 28. f5 Nd8 29. Qc3+ Kh6 $2 {[#]} (29... Kf8 $18 30. Bd5 Kg8) 30. h4 {Precision: White = 49%, Black = 36%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Theodorou, Nikolas"]
[Black "La Rota, Fabio"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2546"]
[BlackElo "2184"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,76,18,17,35,29,17,2,7,-7,0,-53,-40,-41,-41,-60,-41,-57,-51,-37,15,17,137,155,239,236,250,250,246,258,235,233,244,235,281,288,268,249,260,259,245,257,252,250,283,275,434,270,336,336,325,222,775,362,327,338,525,513,480,385,379]} 1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. O-O Bf5 5. c4 e6 {[%cal Be7e6,Be6d5][%mdl 32]} 6. cxd5 exd5 7. d3 Bc5 {A11: English Opening: 1...c6} 8. Qc2 (8. Qb3 Bb6 9. Nc3 O-O 10. Na4 Re8 11. Re1 Ba5 12. Qxb7 Bxe1 13. Qxa8 Bxf2+ 14. Kxf2 Qd7 15. Nd4 Bh3 16. Bf4 {1-0 (16) Meier,G (2628)-Ivanchuk,V (2710) Jerusalem 2018}) 8... Nbd7 9. Nc3 O-O 10. e4 {LiveBook: 4 Games} dxe4 11. dxe4 Bg6 12. h3 h6 $146 ({Predecessor:} 12... Re8 13. Nh4 Qc7 14. Bf4 Ne5 15. Rad1 Nh5 16. Qe2 Nxf4 17. gxf4 Be7 18. fxe5 Bxh4 19. f4 f5 20. exf5 Bf7 21. e6 {1-0 (21) Lehtinen,H (2246)-Luukkonen,T (2138) Tampere 2000}) 13. Re1 Re8 14. Bf4 {[#]} (14. Nh4 $11) 14... Nd5 $1 $15 {[%mdl 512]} 15. Nxd5 cxd5 16. Nd2 Qb6 17. Nb3 Bb4 {...Rac8 is the strong threat.} 18. Be3 Qd6 (18... Qa6 $15 19. Bd2 Bd6) 19. Red1 $11 Nf6 (19... Bxe4 $2 20. Bxe4 Rac8 21. Rxd5 $18) (19... a5 $11 {remains equal.}) 20. a3 $16 {[%mdl 64] [#] Trapped Piece} Nxe4 (20... Rxe4 $16 21. Qe2 (21. Bxe4 Bxe4 22. Qe2 Qe6 $16) 21... Bh5) 21. axb4 $18 Qxb4 22. Rd4 ({And not} 22. Rxa7 Rxa7 23. Bxa7 Nxg3 $17) (22. Rxd5 $6 Nf6) 22... Qe7 23. Bxe4 ({Don't play} 23. Rxd5 $6 Nf6 $16) 23... Bxe4 24. Qe2 Qf6 25. Nd2 Bf5 {Hoping for ...Qxd4!} 26. Qf3 ({But not} 26. Rxd5 $6 Qxb2 27. Rda5 Rad8 $16) 26... Qg6 27. Rc1 Rac8 28. Rxc8 Rxc8 29. Qxd5 Bxh3 30. Qxb7 Rc1+ 31. Kh2 Bg4 (31... Bc8 $142 32. Qe7 Qf5 33. Rd8+ Kh7) 32. Qd5 Kh7 33. Nf3 Be6 34. Qe4 Bf5 $2 (34... Qxe4 35. Rxe4 Rb1) 35. Qh4 (35. Qf4 $142) 35... Rc8 36. b4 a6 (36... Re8 $142 37. Qf4 Bc8) 37. g4 Bc2 38. Qe7 Bb3 {Accuracy: White = 70%, Black = 26%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Dias Huizar, Alvaro"]
[Black "Cordova, Emilio"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2221"]
[BlackElo "2595"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,124,15,26,14,4,10,10,18,8,12,2,11,9,7,0,2,-30,-35,-50,-25,-62,-33,-41,-41,-33,-33,-41,-20,-25,-25,-35,-35,-32,-44,-43,-38,-37,-25,-30,-13,-7,-7,-51,-34,-115,-119,-119,-118,-116,-118,-128,-114,-135,-129,-145,-145,-138,-111,-125,-121,-180,-177,-203,-200,-192,-167,-205,-183,-295,-294,-266,-177,-214,-216,-220,-198,-351,-356,-313,-233,-427,-256,-244,-240,-240,-240,-240,-240,-257,-208,-193,-190,-359,-375,-298,-201,-658,-656,-899,-856,-29957,-6444,-29980,-29981,-29981,-29981,-29981,-29982]} 1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O c5 6. e3 d6 7. b3 Nbd7 8. Bb2 Be7 9. Nbd2 O-O 10. c4 {LiveBook: 4 Games} a6 {A30: Symmetrical English: Double Fianchetto and Hedgehog} (10... Ne4 11. Qe2 Qc7 12. Rfd1 Rfd8 13. Nxe4 Bxe4 14. Ne1 Bxg2 15. Kxg2 Rac8 16. Rac1 Nf6 17. h3 cxd4 18. Bxd4 {0-1 (54) Jary,S (2297)-Levin,E (2505) Sochi 2016}) 11. Qe2 cxd4 $146 ({Predecessor:} 11... Ra7 12. e4 cxd4 13. Nxd4 Qa8 14. h3 Ne8 15. f4 Bf6 16. f5 exf5 17. exf5 Nc5 18. Bxb7 Qxb7 {1-0 (34) Noga,J (2054)-Malecki,R (2144) Gora Sw Anny 2008}) 12. exd4 Re8 {The position is equal.} 13. Rfe1 Bf8 14. Qd3 Rc8 15. Rac1 g6 16. Re2 b5 17. a3 bxc4 18. Nxc4 Rc7 19. b4 Qa8 {Hoping for ...Rec8.} 20. Ne1 Bxg2 21. Nxg2 Rec8 22. Rec2 Qe4 (22... Bh6 {is interesting.} 23. Nge3 Qb8 24. Na5 Rxc2 25. Rxc2 Rxc2 26. Nxc2 Qc8) 23. Qxe4 Nxe4 24. Nce3 Rxc2 25. Rxc2 Rxc2 26. Nxc2 Nb6 27. Nge3 Bg7 28. Kf1 Na4 29. Bc1 Nec3 30. Bd2 Nb5 31. Nc4 (31. d5 $15) 31... d5 $17 32. Ne5 {[#]} Nxd4 $1 {[%mdl 576] Remove Defender} 33. Nxd4 {Ndc6 is the strong threat.} Bxe5 {[%mdl 4096] Endgame KBN-KBN} 34. Nc6 Bb2 35. Nb8 Bxa3 36. Nxa6 Kf8 37. Ke2 Ke7 38. Kd3 Bb2 39. Kc2 (39. b5 $17) 39... Bd4 $19 40. f3 Kd7 41. b5 Bg1 42. h3 Nc5 43. Nb4 (43. Nxc5+ $142 Bxc5 44. g4) 43... Kc7 44. Nc6 Nb7 45. Kb3 Kb6 46. Ne5 f5 ({Don't take} 46... Kxb5 47. Nxf7 Bf2 48. Bf4 $17) 47. Nd7+ $2 (47. Kb4 {keeps fighting.}) 47... Kxb5 48. Nf8 Bf2 49. g4 $2 (49. Nxe6 Bxg3 50. Nd4+ Kb6 51. Be3 Nc5+ 52. Kc3) 49... fxg4 (49... e5 $142 50. Nxh7 e4) 50. hxg4 e5 51. Nxh7 {intending Nf8.} Nc5+ 52. Kc2 {[#]} Ne6 $1 53. Nf6 Kc5 54. Kd3 Kc6 55. Ke2 $2 (55. Bc3 {was worth a try.}) 55... Bh4 56. Nh7 Kd7 57. f4 $2 (57. Bc3 d4 58. Bd2) 57... exf4 58. Kf3 Ng5+ 59. Nxg5 Bxg5 60. Bxf4 Bxf4 {Black mates.} 61. Kxf4 Ke6 62. g5 Kd6 {Accuracy: White = 29%, Black = 72%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Amaro Alfonso, Raynner"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2212"]
[BlackElo "2559"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,78,14,12,13,54,53,62,35,79,34,53,48,33,46,53,51,91,18,15,0,0,0,25,0,5,0,7,-60,-70,-140,-118,-204,-189,-549,-553,-1167,-1165,-1127,-1088,-29988,-29989,-29989,-29990,-29991,-29990,-29990,-29991,-29994,-29994,-29995,-29993,-29993,-29994]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 h5 9. Qd2 Nbd7 10. Nd5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} Bxd5 11. exd5 g6 12. Be2 Bg7 13. O-O (13. O-O-O O-O 14. g4 a5 15. a4 Nb6 16. gxh5 Nxh5 17. Bb5 Nf6 {0-1 (71) Leko,P (2690)-Vachier Lagrave,M (2780) Batumi 2018}) 13... b6 14. c4 O-O {LiveBook: 31 Games} 15. Rae1 a5 16. Na1 $146 {[%cal Bb3a1,Ba1c2,Bc2a3,Ba3b5][%mdl 32]} ({Predecessor:} 16. Kh1 Kh7 17. Bd3 Nc5 18. Nxc5 bxc5 {½-½ (57) Remizov,Y (2317)-Salemgareev,T (2375) Riga 2018}) 16... Nc5 17. Nc2 Re8 18. Bd1 Qd7 19. Na3 e4 20. Bc2 exf3 21. gxf3 h4 22. Bd4 (22. Nb5 $16) 22... Qh3 23. Rxe8+ Rxe8 24. Nb5 Qd7 25. a3 Qe7 26. b4 Ncd7 27. Bb3 (27. f4 $11) 27... Nh5 $15 28. Bf2 ({Better is} 28. Bxg7 $15 Nxg7 29. Nd4) 28... Be5 $36 {[%mdl 2048] Black is really pushing.} 29. Kh1 (29. Re1 $17) 29... Bf4 $19 30. Qd1 $2 {[#]} (30. Qc2 {was the crucial defense.}) 30... Ng3+ $1 {[%mdl 512]} 31. hxg3 hxg3 32. Bxg3 Bxg3 33. Qd2 Qh4+ {Black mates.} 34. Kg1 Bf4 35. Qb2 Be3+ 36. Kg2 Re5 {[%cal Be8e5,Be5g5,Bg5g1,Bg1b1][%mdl 32]} 37. Rb1 Rg5+ 38. Kf1 Rg1+ 39. Ke2 Rxb1 {Accuracy: White = 25%, Black = 53%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "1"]
[White "Corrales Jimenez, Zenia"]
[Black "Almeida Quintana, Omar"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2177"]
[BlackElo "2545"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,123,80,76,120,56,97,82,73,74,164,141,188,89,171,170,168,175,189,175,196,209,185,216,193,150,153,101,97,99,105,116,125,112,105,95,110,83,158,166,175,150,156,103,85,0,136,0,159,164,160,148,157,147,131,141,233,193,225,196,191,158,158,148,177,184,246,255,255,255,241,238,1193,1156,1106,592,1356,535,2339,427,11188,10135,9987,8007,268,261,12850,12849,12798,1175,612,0,8536,2841,6156,5077,5575,5057,12314,11702,12741,8287,12295,6621,6103,5808,5575,5057,4627,4622,1490,1191]} 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. f4 Qa5 5. Bd2 Qb6 6. Nf3 Bg4 7. e5 Nd5 8. exd6 {LiveBook: 3 Games. B07: Pirc Defence: Miscellaneous Systems} (8. Ne4 Bxf3 9. gxf3 Qd8 10. c4 Nc7 11. Qb3 b6 12. O-O-O d5 13. f5 e6 14. Nc3 Qh4 15. fxe6 fxe6 {1-0 (50) Filipovic,B (2409)-Vidovic,S (2354) Sibenik 2011}) 8... exd6 9. Bc4 $146 ({White should play} 9. Qe2+ $16 Kd8 10. O-O-O) ({Predecessor:} 9. Qe2+ Ne7 10. d5 Nd7 11. O-O-O Nf6 12. dxc6 bxc6 13. h3 Bxf3 14. Qxf3 d5 15. Bd3 Rb8 {1-0 (25) Grippo,L (2231)-Gionfriddo,M (1822) ICCF email 2013}) 9... Nf6 10. d5 {White is better.} Be7 11. h3 Bf5 (11... Bd7 $16) 12. g4 $18 Ne4 {[%csl Ge4][%cal Rb6f2]} 13. Rf1 (13. Qe2 $1 $18 {is the precise move to win.} Ng3 14. Qg2) 13... Nxd2 (13... Qxb2 $16 14. Rb1 Nxc3 15. Rxb2 Nxd1 16. Kxd1 Bc8) 14. Qxd2 Bd7 15. O-O-O O-O 16. f5 Qb4 17. Bb3 c5 18. a3 Qa5 19. Ne4 Qxd2+ 20. Rxd2 ({Much less strong is} 20. Nexd2 $6 Na6 $14) ({Don't do} 20. Kxd2 $6 b5 $14) (20. Nfxd2 $142 b5 21. c4) 20... b5 21. c4 Na6 22. f6 Bxf6 23. Nxf6+ gxf6 24. Nh4 $1 Kg7 25. Rdf2 Rae8 (25... bxc4 $142 26. Bxc4 Nc7) 26. Rxf6 $16 Re1+ 27. Rxe1 Kxf6 28. Rf1+ (28. cxb5 $142 Nc7 29. a4) 28... Ke7 29. Re1+ (29. cxb5 $142 Bxb5 30. Nf5+ Kd7 31. Rf4) 29... Kf6 30. Rf1+ (30. cxb5 $1 $16 Nc7 31. a4) 30... Kg7 $2 (30... Ke7 $11) 31. cxb5 $1 Nc7 32. a4 $1 Re8 33. Bc4 Re3 34. Nf3 f5 (34... h6 $16 {was called for.} 35. b3 Re4) 35. gxf5 Bxf5 36. Ng5 Kg6 37. Rg1 {Strongly threatening Ne6+.} Kf6 38. a5 $1 {[%cal Ba4a5,Ba5b6][%mdl 32]} Re8 {[#]} 39. Ne6 $1 {[%cal Re6c7][%mdl 512]} Bxe6 (39... Nxe6 {is a better defense.} 40. dxe6 h6) 40. dxe6 $18 {[%cal Bd5e6,Be6e7][%mdl 4128] Endgame KRB-KRN} d5 41. b6 axb6 42. axb6 dxc4 $2 (42... Na8) 43. bxc7 {KR-KR} Rc8 {[#]} 44. e7 $1 {[%mdl 512]} Kf7 {[#]} (44... Kxe7 45. Rg7+) 45. Kc2 (45. e8=Q+ $142 $1 {[%mdl 512]} Rxe8 46. Rd1) 45... h6 {[#]} 46. Kc3 (46. e8=R $142 $1 {[%mdl 512]} Rxe8 47. Rf1+ Kg6 48. Ra1) 46... Rxc7 {[#]} (46... Kxe7 $142 47. Rg7+ (47. Kxc4 Kf6 $16) 47... Kd6) 47. Rg7+ $1 {[%mdl 512]} Ke8 (47... Kxg7 48. e8=Q) 48. Kxc4 Rc6 49. Kb5 Rf6 $2 (49... Rd6 50. Kxc5 Rd3) 50. Kxc5 Rf5+ 51. Kd6 (51. Kb6 $142 Rf4 52. Ka5) 51... Rf6+ 52. Kc5 (52. Kc7 $142 Rf4 53. Rg4) 52... Rf5+ $1 53. Kb4 (53. Kc4 $142 Rf4+ 54. Kc5) 53... Rf4+ 54. Ka5 Rf5+ 55. Ka4 Rh5 56. Rg3 Kxe7 57. Rd3 Re5 58. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Re1 59. b5 Rb1 60. Ka5 Ra1+ 61. Kb6 Rb1 62. Ka6 {Accuracy: White = 68%, Black = 39%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Cordova, Emilio"]
[Black "Campos Jimenez, Augusto Cesar"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2595"]
[BlackElo "2381"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,13,15,8,10,0,25,0,9,-30,-21,-32,-22,-53,-15,-26,-13,-15,-9,-3,1,-20,1,-52,2,-60,0,-96,-83,-101,-61,-52,-36,-75,-35,-85,-42,-85,-78,-78,-84,-82,-81,-97,-74,-79,-67,-70,-45,-54,-29,-41,0,-22,-6,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,-7,-2,-8,-37,-31]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 c6 4. e3 Bg4 5. Ngf3 Nbd7 {LiveBook: 8 Games} 6. c3 {D00: 1 d4 d5: Unusual lines} (6. c4 e6 7. Bd3 Be7 8. Qb3 Qb6 9. Qc2 Bh5 10. O-O Bg6 11. c5 Qd8 12. b4 Bxd3 13. Qxd3 {1-0 (62) Artemiev,V (2692)-Radjabov,T (2742) Tbilisi 2017}) 6... e6 7. h3 Bh5 8. g4 $146 {White has an edge.} ({Predecessor:} 8. Bd3 Be7 9. Qc2 Bg6 10. Bxg6 hxg6 11. Bf4 c5 12. Qa4 {1-0 (42) Mohamad,J (1850)-Cwiek,P (1770) France 2005}) 8... Bg6 9. Ne5 Qb6 {White should prevent ...Nxe5.} 10. Nxg6 hxg6 11. b4 Be7 12. Rb1 e5 13. Bg2 exd4 14. exd4 Nf8 15. Be3 Ne6 16. f4 (16. b5 $11) 16... Qa6 (16... a5 $15 17. b5 cxb5) 17. Bf1 (17. Qe2 $1 $11) 17... Qb6 ({Black should try} 17... Qa3 $15 18. Bg2 a5) 18. f5 (18. Bg2 $1 $11 {remains equal.}) 18... gxf5 $17 19. gxf5 Nf8 20. Rg1 Rh7 21. Qf3 N8d7 22. Bd3 Kf8 23. Kf1 Bd6 24. Re1 a5 25. a3 axb4 26. axb4 Ra3 27. Nb1 Ra2 28. Rg2 Rxg2 29. Kxg2 Bb8 30. Nd2 Qa7 31. Nf1 Bd6 32. Bf4 Qb8 33. Bxd6+ Qxd6 34. Qg3 Qxg3+ 35. Nxg3 Rh6 36. Ra1 Ke7 37. Ra7 b5 38. Ra6 Ne8 39. Ne2 Nc7 40. Ra7 Kd6 41. Ng3 Nf6 {Accuracy: White = 36%, Black = 45%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Perez Rodriguez, Luis Manuel"]
[Result "1-0"]
[ECO "D44"]
[WhiteElo "2559"]
[BlackElo "2354"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 38,71,37,67,137,135,141,136,154,145,137,153,139,154,153,143,168,151,151,161,164,96,139,87,91,0,2,17,145,162,150,108,2154,2145,1210,1184]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3 Bb7 12. Bg2 Qb6 13. exf6 c5 14. d5 O-O-O 15. O-O b4 16. Rb1 Qa6 17. dxe6 Bxg2 18. e7 Bxf1 19. Kxf1 {D44: Semi-Slav: Botvinnik System} (19. Qxf1 bxc3 20. bxc3 Bh6 21. Bxh6 Rxh6 22. Qg2 Rdh8 23. Qa8+ Kc7 24. e8=Q Rxe8 25. Qxe8 Rxf6 26. Qe4 Qc6 {0-1 (34) Lenic,L (2662)-Andreikin,D (2712) chess.com INT 2018}) 19... Bxe7 20. fxe7 {LiveBook: 31 Games} Rde8 ({Black should try} 20... Rdg8 $14 21. Ne4 c3+ 22. Kg1 Rxg5 23. Nxg5 Qg6) 21. Ne4 $16 {Nd6+ is the strong threat.White is clearly better.} Qc6 $146 ({Predecessor:} 21... c3+ 22. Kg1 {1-0 (22) Celestini,M (2236)-Bondi,A (2356) ICCF email 2017}) 22. Nd6+ {[%mdl 64] [#] Double Attack} Kc7 23. Nxe8+ Rxe8 24. Kg1 Ne5 {[#] Threatens to win with ...Nf3+.} 25. Bf4 $1 {[%cal Rf4e5]} ({But not} 25. Qd8+ $6 Kb7 $11) 25... Rxe7 26. Qe2 Kb6 27. Bxe5 f6 28. Qxc4 Rxe5 {[%mdl 4096] Endgame KQR-KQR} 29. a3 (29. b3 $18) 29... Qe4 30. Qf1 (30. Qxe4 $142 Rxe4 31. h4) 30... a5 31. axb4 ({White should play} 31. Rc1 $16) 31... axb4 $11 32. h4 f5 (32... c4 $11) 33. Ra1 $36 {[%mdl 2048] And now Qa6+ would win. White is on the roll.} Qe2 34. Qc1 {Black must now prevent Qh6+.} c4 $2 {[%mdl 8192]} (34... Kb5 $16) 35. Qh6+ $18 Re6 36. Qf8 {Accuracy: White = 53%, Black = 43%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Vorontsov, Pavlo"]
[Black "Diaz Hernandez, Heriberto"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2548"]
[BlackElo "2351"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,101,-2,0,0,0,0,10,0,0,0,0,0,0,-43,42,34,102,84,77,25,154,136,147,81,83,75,91,66,164,160,160,165,161,166,161,168,166,168,166,166,173,135,167,160,163,164,179,159,180,187,185,180,179,179,238,233,216,236,225,218,278,268,304,295,418,394,625,633,613,599,654,601,720,714,613,565,541,540,533,533,1620,1568,5501,5547,5530,5527]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 {[%cal Bg1f3,Bf3g5,Bg5e4][%mdl 32]} Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. a3 Bf8 8. Ng5 {A28: English Opening: Four Knights Variation} g6 9. h4 d6 {LiveBook: 4 Games} 10. Nxf6+ {The position is equal.} Qxf6 11. Ne4 Qe7 $146 ({Predecessor:} 11... Qd8 12. h5 Bg7 13. hxg6 hxg6 14. d3 d5 15. cxd5 Qxd5 {1-0 (37) Kovalenko,I (2684)-Berzinsh,R (2408) Tallinn 2017}) 12. d3 f5 13. Nc3 Be6 14. Bd2 Qf7 15. O-O-O Ne7 (15... h5 $15) 16. h5 $14 d5 (16... c6 $14) 17. hxg6 $16 hxg6 18. g4 (18. d4 $16) 18... dxc4 (18... c6 $11 {remains equal.}) 19. dxc4 Bxc4 {...Bb3 is the strong threat.} (19... fxg4 $6 20. Ne4 $11) 20. Bxc4 ({White should play} 20. gxf5 $1 Nxf5 21. Bxc4 Qxc4 22. Rdg1) 20... Qxc4 21. gxf5 Nxf5 22. Rdg1 Kf7 (22... Ne7 $1 $14) 23. Rh7+ $18 Bg7 24. Rxg7+ $1 Kxg7 25. Qxf5 $1 Qf1+ 26. Rxf1 {Rg1 would kill now.} gxf5 27. e4 fxe4 28. Nxe4 Kg6 29. Bc3 Kf5 30. Re1 Rad8 31. Ng3+ Kf4 32. Re3 Rd7 33. Ne2+ Kf5 {[#]} 34. f4 $1 {[%mdl 512]} e4 (34... exf4 35. Rxe8) 35. Be5 Rd3 (35... Rxe5 {was worth a try.} 36. fxe5 Kxe5) 36. Ng3+ Ke6 ({Don't play} 36... Kg4 37. Nxe4 Rxe3 38. Nf6+ Kf3 39. Nxe8) 37. Rxd3 exd3 {[#]} 38. Kd2 $1 Kd5 39. Kxd3 ({Less strong is} 39. Bxc7 Rg8 $16) 39... c5 40. Ne4 {Strongly threatening Nf6+.} c4+ (40... Kc6 {was necessary.} 41. Nf6 Re7) 41. Ke3 {And now Nf6+ would win.} Rd8 (41... Rf8 $142 42. Nc3+ Kc6) 42. Nf6+ {White is clearly winning.} Ke6 43. Ke4 Rd2 44. f5+ Kf7 45. Ng4 Re2+ 46. Kf3 Re1 47. Bc3 Rf1+ 48. Ke4 b5 49. Nh6+ Ke7 50. f6+ {[%cal Bf5f6,Bf6f7][%mdl 32]} Ke6 51. f7 {Accuracy: White = 83%, Black = 27%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Figueredo Losada, Leonel"]
[Black "Bok, Benjamin"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2363"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,112,14,22,22,26,23,0,16,23,11,85,109,163,165,152,141,141,159,174,118,176,173,175,178,211,115,111,92,106,87,139,53,85,70,83,87,87,87,99,113,118,124,105,95,406,0,0,-95,-77,-81,-39,-55,-30,-90,-101,-88,-87,-111,-111,-121,-131,-126,-133,-138,-110,-134,-112,-391,-391,-29984,-703,-581,0,-29984,-29984,-29969,-5069,-1829,-365,-263,0,-1500,-1089,-5069,-4590,-4133,-4132]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. Bg5 {[%cal Bc1g5,Bg5h4,Bh4g3,Bg3d6][%mdl 32]} h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7 10. O-O Nbd7 11. Ne5 {D43: Semi-Slav: 5 Bg5 h6} Bg7 12. Nxd7 Nxd7 13. Bd6 a6 14. a4 b4 {LiveBook: 15 Games} 15. Nb1 Nf6 16. e5 Ne4 $1 {[%cal Re4d6]} 17. Bxb4 {Hoping for Ba3.} c5 $1 {[%cal Rc5b4]} 18. Ba3 $1 {Strongly threatening f3.} cxd4 {[#]} (18... g4 $11) 19. Bf3 $146 g4 (19... Rc8 $16 {was worth a try.}) 20. Bxe4 $1 $18 Bxe4 21. Qxg4 Bg6 22. Bd6 $1 Qb6 23. Nd2 ({White should play} 23. Na3 $18) 23... c3 (23... Rc8 $16 {might work better.}) 24. Nc4 $1 {[%cal Rc4b6]} Qc6 25. Qxd4 c2 26. Rac1 (26. Ra3 $1 $18) 26... Bf8 27. f4 Rd8 28. Rf2 Rg8 29. Re2 (29. Qc3 $16) 29... Qxa4 30. Qc5 Qb5 31. Bxf8 $1 Rxf8 32. Qc7 Rd1+ 33. Re1 Qd7 {[#]} 34. Nd6+ $1 Ke7 35. Qc5 Rxd6 $2 {[%mdl 8192]} (35... Rxe1+ $16 {is more resistant.} 36. Rxe1 Rh8) 36. exd6+ $2 (36. f5 $1 $18 {[%cal Rf5g6]} Bxf5 37. exd6+ Kf6 38. Qd4+ e5 39. Rxe5) 36... Qxd6 $11 37. Qa5 (37. Qxd6+ $11 {remains equal.} Kxd6 38. g4) 37... Qxf4 38. Qxa6 Rb8 39. Qa3+ Qd6 {[%mdl 1024] Black has compensation.} 40. Qh3 (40. Ra1 $11) 40... Qd4+ $17 41. Kh1 h5 42. b3 Rc8 {Threatens to win with ...Rc3.} 43. Qf3 Rc3 44. Qb7+ Kf6 45. b4 Bf5 46. Rf1 Kg7 47. b5 $2 {[%mdl 8192]} (47. Qe7 $17) 47... h4 $19 48. Rf3 $2 (48. h3 $19 Rxh3+ 49. gxh3 Be4+ 50. Qxe4 Qxe4+ 51. Kh2) 48... Qd1+ (48... h3 $142 49. Rxf5 exf5 50. Qe7 hxg2+ 51. Kxg2 Qd2+ 52. Qe2 Qxe2+ 53. Kh1 Qd1+ 54. Kg2 Qxc1 55. h4 Qd2+ 56. Kh1 c1=Q#) 49. Rf1 {[#]} Qd4 $40 {[%mdl 128] Black has some attack.} (49... Qxf1+ $1 $19 {[%mdl 512]} 50. Rxf1 c1=Q) 50. Rf3 $1 h3 51. Rff1 hxg2+ (51... Kh6 $142 52. Rfe1 Re3 53. Rg1 Be4 54. Qxf7 hxg2+ 55. Rxg2 Bxg2+ 56. Kxg2 Qd2+ 57. Qf2 Re2 58. Qxe2 Qxe2+ 59. Kh1 Qf3+ 60. Kg1 Qe3+ 61. Kg2 Qxc1 62. Kf3 Qf1+ 63. Ke4 c1=Q 64. Ke5 Qc5+ 65. Kxe6 Qff5#) 52. Qxg2+ Kf8 $2 (52... Kh6 {aiming for ...Be4.} 53. Rxf5 exf5) 53. Qa8+ Kg7 $2 (53... Ke7 54. Qb7+ Kd6) 54. Qg2+ $1 Kh6 {And now ...Be4 would win.Black is clearly winning.} 55. Rfe1 Re3 {( -> ...Be4)} 56. Rxe3 Qxe3 {Precision: White = 43%, Black = 57%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Medina Diaz, Rafael Alejandro"]
[Black "Baryshpolets, Andrey"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2356"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,81,4,-17,2,12,26,-8,-24,-45,-17,-70,-66,-70,-66,-62,-57,-61,-49,-74,-32,-58,-9,-6,-14,-39,-43,-51,-50,-47,-47,-41,-25,-24,-13,-61,-27,-38,-31,-96,-77,-101,-77,-92,-50,-50,-50,-50,-52,-90,-93,-149,-54,-164,-147,-130,0,0,2,11,420,122,802,0,7,8,8,-29980]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Nxc6 bxc6 8. Bd3 Qc7 9. c4 {LiveBook: 4 Games. C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} d4 10. O-O Bd6 11. Nf3 $146 {White has an edge.} ({Predecessor:} 11. Qg4 Bxh2+ 12. Kh1 h5 13. Qxg7 Be5 14. Qg5 Bf6 15. Qc5 Nh6 16. f4 {0-1 (39) Karthikeyan,P (2507)-Wang,H (2683) Sharjah 2017}) 11... e5 12. Bd2 a5 13. Rc1 (13. Nh4 $11) 13... c5 $1 $15 14. Bc2 a4 15. Ne1 Ne7 16. Nd3 O-O 17. f4 f6 18. fxe5 fxe5 19. Rxf8+ Kxf8 20. Qh5 Kg8 $1 21. b4 axb3 $1 22. axb3 Be8 23. Qg4 Bf7 24. b4 Ng6 {[%cal Be7g6,Bg6f8,Bf8d7][%mdl 32]} ({Not} 24... Bxc4 $2 25. bxc5 Kh8 26. cxd6 $18) 25. Bb1 Ra1 26. Qd1 Nf8 $36 {[%mdl 2048] Black fights for an advantage.} 27. Qb3 (27. bxc5 $15 Bxc5 28. Nxc5 Qxc5 29. Bd3 Rxc1 30. Bxc1) 27... Nd7 28. h3 Qa7 29. Kh2 Bg6 30. bxc5 Nxc5 31. Nxc5 Ra3 32. Qb7 Qxc5 33. Qb2 (33. Rc2 $142) 33... d3 (33... h6 $17 {Threatens to win with ...Kh7.} 34. Qb7 Kh7) 34. Qb7 ({Better is} 34. Re1 $1 $15) 34... Ra7 35. Qb5 Qf2 (35... Bxe4 $17 36. Qe8+ Bf8 37. Qe6+ Rf7) 36. Qd5+ $11 {[%mdl 64] [#] Double Attack} Rf7 37. Qxd3 Qc5 $2 {[%mdl 8192]} (37... Bc5 $11 {and Black stays safe.}) 38. Qd5 $2 (38. Be3 $18 {and the rest is easy.} Qa3 39. c5 Qxd3 40. Bxd3) 38... Qf2 $2 {[%mdl 8192]} (38... Qxd5 $16 39. cxd5 Rf2) 39. Qd3 $2 (39. Qxd6 $18 h6 40. c5) 39... Bxe4 40. Qxe4 Qxd2 41. Kg1 $4 {[%mdl 40960] Accuracy: White = 28%, Black = 36%. . An unexpected result.} (41. Rc2 $11 Qd4 42. Re2) 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Lopez Gonzalez, Abel Fabian"]
[Black "Gonzalez Vidal, Yuri"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2353"]
[BlackElo "2553"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,79,0,36,0,11,0,-8,-28,0,0,0,0,0,0,0,0,18,19,8,12,6,0,0,0,0,0,0,0,0,-13,0,-5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Nh6 7. c3 O-O 8. d4 cxd4 9. cxd4 d5 10. e5 {B31: Sicilian: 2...Nc6 3 Bb5 g6} f6 11. e6 Nf5 {LiveBook: 11 Games} 12. Nbd2 $146 {[%cal Bb1d2,Bd2b3,Bb3c5][%mdl 32] White is slightly better.} ({Predecessor:} 12. Nc3 Qd6 13. Qe2 Qb4 14. a3 Qb3 15. h4 a5 16. Bf4 Ba6 17. Qd2 h5 {1-0 (34) Saric,I (2677)-Saric,A (2541) Pozega 2018}) 12... Qd6 13. Qe2 a5 14. g4 Nh6 (14... Ba6 $5 15. Qd1 $8 Nh6 $11) 15. h3 {The position is equal.} Ba6 16. Qd1 $1 Bc8 17. Nb3 Bxe6 18. Qe2 $1 {[%cal Re2e6]} Bd7 {White must now prevent ...Rfe8.} 19. Qxe7 Nf7 20. Nc5 Bc8 21. Qxd6 (21. Kg2 {keeps more tension.} f5 22. g5 f4 23. Bd2 Bf5 24. Qxd6 Nxd6 25. Ne5) 21... Nxd6 22. Bf4 Ne4 $1 23. Rac1 Nxc5 24. Rxc5 Bd7 25. a4 Ra7 26. Bd6 Rc8 27. Re3 Rd8 28. Rb3 Bxg4 29. Bb8 Ra8 30. hxg4 {[#] aiming for Bc7.} Rdxb8 31. Rxb8+ Rxb8 32. Rxc6 $11 {[%mdl 4096] Endgame KRB-KRN} Rb4 33. Rc5 Rxa4 34. Rxd5 Rb4 35. Rxa5 Rxb2 36. Ra8+ Kf7 37. Ra7+ Kg8 38. Kg2 Rb5 39. Rd7 Bf8 40. Nd2 {Accuracy: White = 70%, Black = 73%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Perez Leiva, Jerzy Jesus"]
[Black "Theodorou, Nikolas"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "2313"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,72,0,7,-1,6,0,0,0,0,0,0,0,0,-22,0,-4,-5,-25,-36,-50,-56,-50,-35,-26,-20,-48,-44,-60,-60,-60,-49,-50,-71,-53,-18,-130,-116,-203,-202,-208,-222,-217,-125,-125,-125,-216,-206,-199,-213,-205,-207,-205,-160,-418,-420,-424,-422,-564,-543]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Bg5 O-O {LiveBook: 6 Games. B92: Sicilian Najdorf: 6 Be2} (8... Nbd7 9. a4 h6 10. Be3 Ng4 11. Bc1 Ngf6 12. O-O Nc5 13. Nd2 Be6 14. b3 O-O 15. Bb2 Qc7 16. Bf3 Rfd8 {0-1 (72) Grischuk,A (2766)-Vachier Lagrave,M (2779) Saint Louis 2018}) 9. Bxf6 Bxf6 10. Nd5 Nd7 {The position is equal.} 11. Nd2 Nc5 12. b4 Na4 $146 ({Predecessor:} 12... Ne6 13. Nc4 b5 14. Nce3 Bb7 15. O-O Rc8 16. a4 {1-0 (46) Gerdes,J (1492)-May,A (1373) Willingen 2018}) 13. c4 Nb6 14. O-O Nxd5 15. cxd5 Bg5 16. Nc4 f5 17. Bf3 Qc7 18. Qb3 Kh8 19. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Bd7 $36 {[%mdl 2048] Black is pushing.} 20. Ne3 fxe4 21. Rac1 Qb6 22. a5 $1 {[%cal Ra5b6]} Qa7 23. Bxe4 Bb5 {aiming for ...Rf4.} 24. Rfe1 Qd4 (24... Rf4 $5 {[%cal Rf4e4]} 25. f3 Rff8 $17) 25. Qc2 (25. Nf5 $1 $11 {keeps the balance.} Rxf5 26. Bxf5 Bxc1 27. Rxc1) 25... Qxb4 $17 26. Rb1 (26. h4 $17 Bh6 27. h5) 26... Qxa5 $19 27. Bxh7 Rac8 $1 {[%cal Rc8c2]} 28. Qg6 Bh6 ({Don't do} 28... Bxe3 29. fxe3 Rf6 30. Qg3 $17) ({Better is} 28... Qd2 $19 29. Nf5 (29. Qxg5 $2 Qxf2+ 30. Kh1 Kxh7 $19) 29... Bh6 30. Nxh6 gxh6) 29. Ng4 $17 Qd2 30. Nxh6 (30. f3 $17) 30... gxh6 $19 ({Much less strong is} 30... Qxh6 31. Qxh6 gxh6 32. Be4 $17) 31. f3 Qd4+ $1 ({Not} 31... Qxd5 32. Qxh6 Qd4+ 33. Kh1 $11) 32. Kh1 Qf4 33. Qe4 Qf6 {Hoping for ...Rc7.} 34. Rbc1 $2 (34. Rb2 $17 {might work better.}) 34... Rxc1 35. Rxc1 {[#]} Qg7 $1 36. Bf5 {[#]} Qg5 $1 {[%csl LRc1,LRf5][%mdl 64] Double Attack. Accuracy: White = 46%, Black = 88%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.14"]
[Round "2"]
[White "Herrera, Juan Sebastian"]
[Black "Gonzalez Zamora, Juan Carlos"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2306"]
[BlackElo "2538"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,76,51,73,73,105,53,43,32,41,0,-6,-11,-6,-117,-118,-109,-97,-97,-92,-95,-95,-78,-38,-103,-113,-121,-118,-114,-118,-112,-84,-113,-102,-156,-137,-156,-142,-200,-211,-207,-183,-191,-198,-232,-247,-243,-230,-233,-244,-238,-244,-377,-375,-370,-355,-355,-342,-586,-569,-29994,-29995]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. d5 d6 6. e4 Qe7 {E20: Nimzo-Indian: 4 g3 and 4 f3} (6... O-O 7. Nge2 b5 8. Ng3 exd5 9. cxd5 a6 10. a4 Ba5 11. Be2 Nbd7 12. O-O c4 13. Kh1 Rb8 14. axb5 axb5 15. Nf5 Nc5 16. Rxa5 Qxa5 {1-0 (37) Mamedyarov,S (2772)-Li,R (2577) chess.com INT 2017}) 7. Nge2 {[%cal Bg1e2,Be2g3,Bg3h1][%mdl 32]} Nbd7 8. Ng3 Bxc3+ 9. bxc3 Nf8 {LiveBook: 3 Games} 10. Bd3 h5 $146 {[%cal Bh7h5,Bh5h4][%mdl 32]} ({Predecessor:} 10... e5 11. Qa4+ Kd8 12. O-O Ng6 13. Nf5 Bxf5 14. exf5 Nf4 15. Bxf4 exf4 {½-½ (41) Golod,V (2590)-Gershon,A (2502) Tel Aviv 2000}) 11. O-O ({White should play} 11. h4 $1 $16) 11... h4 $14 12. Nh1 e5 13. a4 Nh5 14. Ra2 Ng6 15. g3 (15. Re1 $11) 15... hxg3 $17 16. hxg3 Nhf4 {Threatens to win with ...Nh3+.} 17. Rh2 {[#]} Rxh2 $1 18. Kxh2 Nxd3 19. Qxd3 Bd7 20. a5 ({Better is} 20. Qc2 $15) 20... O-O-O 21. Nf2 Rh8+ 22. Kg2 Qd8 23. a6 b6 24. Bd2 Kc7 25. Ra1 {[#]} (25. Be3 $142) 25... Rh5 $1 26. Qc2 Qh8 27. Rh1 (27. Rg1 $17 {was necessary.}) 27... Rxh1 $19 28. Nxh1 Qh3+ 29. Kg1 f5 30. Be1 f4 31. Qd2 Bc8 32. Qa2 fxg3 33. Bxg3 Qh6 34. Kg2 (34. Qc2 {was worth a try.}) 34... Bh3+ 35. Kg1 Qc1+ 36. Kh2 Bd7 ({Worse is} 36... Qxc3 37. Kxh3 Qxf3 38. Kh2 $11) 37. Qb3 $2 (37. Qe2 {is a better defense.}) 37... Qf1 38. Nf2 Nf4 {Accuracy: White = 23%, Black = 89%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Bok, Benjamin"]
[Black "Miranda Mesa, Elier"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2643"]
[BlackElo "2499"]
[Annotator "TA"]
[PlyCount "240"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,240,11,13,11,12,12,9,13,21,7,12,3,11,10,32,32,32,32,32,32,32,29,32,27,37,31,37,36,36,57,63,45,58,42,79,66,72,75,77,75,103,99,101,104,105,88,88,88,88,88,123,88,118,88,88,0,122,113,100,113,104,96,95,102,114,88,88,88,88,88,88,88,88,0,0,0,93,88,104,88,113,113,113,113,113,92,90,90,113,94,113,113,113,97,109,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,83,0,90,90,90,90,90,90,90,0,90,0,90,90,90,90,91,91,91,0,90,0,90,0,91,0,0,0,90,0,90,0,91,0,91,0,91,0,91,0,91,0,91,0,0,0,91,91,91,0,90,0,90,90,91,91,91,91,91,0,91,0,90,90,90,90,90,90,90,60,68,77,86,86,86,0,0,243,0]} 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 a6 5. d4 Bf5 6. Be2 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} (6. Bd3 Bxd3 7. Qxd3 e6 8. O-O Bb4 9. Bd2 O-O 10. Nxd5 Nxd5 11. cxd5 Bxd2 12. Qxd2 exd5 13. Ne5 Re8 {½-½ (46) Vallejo Pons,F (2707)-So,W (2780) Leon 2018}) 6... h6 7. Bd3 Bxd3 8. Qxd3 e6 9. O-O Bb4 10. Bd2 O-O {LiveBook: 27 Games} 11. Rfd1 Ba5 12. a4 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]} 13. Rab1 Re8 14. Be1 $146 Rc8 15. b4 Bc7 16. e4 {[%cal Be3e4,Be4e5][%mdl 32]} Nb6 17. cxd5 cxd5 18. e5 Nfd7 19. Nd2 Bb8 20. a5 Nc4 21. Na4 f6 22. exf6 Qxf6 23. Nc5 Nxc5 24. bxc5 Nxa5 25. Nf3 Nc4 26. Rxb7 e5 27. dxe5 Nxe5 28. Qxd5+ Kh8 {With the idea ...Rcd8.} 29. Nxe5 $1 Rxe5 30. Qb3 Ree8 31. g3 Be5 32. Rb6 Qf5 33. c6 Bd4 34. Rxd4 Rxe1+ 35. Kg2 Rc1 36. Rf4 Qe5 37. Rxa6 (37. Qd3 $16) 37... Qd6 (37... Qe2 $11 38. Rb6 Qf1+ 39. Kf3 Rd8) 38. Qf3 R1xc6 39. Rxc6 Rxc6 $16 {[%mdl 4096] Endgame KQR-KQR} 40. Rf8+ Kh7 41. h4 Qe6 42. h5 Rd6 43. Kh2 {Qa8 would kill now.} Rd5 44. Kg1 Qe1+ 45. Kg2 Qe6 46. Kh2 (46. g4 $16) 46... Qe5 $11 47. Kg2 ({White should try} 47. Qb3 $11 Qe4 48. g4 $1 {[%mdl 512]}) 47... Qe6 $1 $16 48. Rf4 Rd8 49. Re4 Qd6 50. Qf5+ Kh8 51. Qg6 Qd7 52. Rf4 Kg8 53. Kh2 Qe7 54. Qf5 Re8 55. Qd5+ Qe6 56. Qb5 Rd8 57. Qb7 (57. Qc5 {is interesting.} Re8 58. Qb4 Qe5 59. Qb3+ Kh7 60. Qd1) 57... Qd5 58. Qxd5+ Rxd5 {KR-KR} 59. g4 Ra5 60. Kg3 Rb5 61. Rf5 Rb4 62. f3 Ra4 63. Re5 Kf7 64. Re4 Ra5 65. Kf4 Kf6 66. Rd4 Ra6 67. Rd7 Ra4+ 68. Ke3 Rb4 69. Rd4 Rb5 70. Rf4+ Ke6 71. Rf8 Ke7 72. Rf5 Rb4 73. Rd5 Kf6 74. Rd6+ Ke7 75. Rd4 Rb5 76. Ke4 Ke6 77. Ra4 Kf6 78. Ra6+ Kf7 79. Rd6 Ra5 80. f4 Rb5 81. Rd5 Rb6 82. g5 (82. Ra5 $16) 82... hxg5 (82... Re6+ $1 $11 83. Re5 Ra6 84. g6+ Kf8 85. Rf5+ Kg8) 83. fxg5 Rb7 84. Kf4 Ra7 85. Rb5 Rc7 86. Rd5 Ra7 $1 87. Rb5 Rc7 $1 88. Rb4 Ra7 89. Kg4 Ra8 90. Rb7+ Kg8 91. Re7 (91. g6 $16) 91... Rb8 (91... Ra4+ $11 92. Kf3 Kf8) 92. Kf4 (92. g6 $1 $16) 92... Ra8 (92... Rb4+ $11 93. Kf3 Rb3+ 94. Kf4 Rb4+ 95. Kf3 Kf8) 93. Rd7 (93. g6 $1 $16) 93... Rb8 (93... Ra4+ $11 94. Ke5 Ra1) 94. Ke5 (94. g6 $16) 94... Rb5+ $11 95. Rd5 Rb6 (95... Rxd5+ $1 $11 96. Kxd5 Kf7) 96. Ra5 (96. g6 $1 $16 {[%cal Rd5d8]} Rb8 97. Rd7) 96... Rb8 (96... Kh7 $1 $11) 97. Kf5 (97. g6 $1 $16) 97... Rc8 (97... Kh7 $1 $11 {keeps the balance.}) 98. Rd5 (98. g6 $1 $16) 98... Re8 (98... Kh7 $1 $11) 99. Rd6 (99. g6 $16) 99... Ra8 (99... Kh7 $1 $11) 100. Rd5 Re8 101. Ra5 (101. g6 $16) 101... Rb8 {[#]} (101... Rc8 $11) 102. Rc5 (102. g6 $1 $16) 102... Re8 (102... Kh7 $1 $11) 103. Rd5 (103. g6 $16) 103... Kh7 $1 104. Rd7 Kg8 (104... Rf8+ $11 105. Ke6 Ra8) 105. Rc7 $16 Ra8 106. Ke6 (106. g6 $16) 106... Re8+ (106... Ra6+ $11 {remains equal.} 107. Ke5 Ra5+ 108. Kf4 Ra8) 107. Kd6 ({White should play} 107. Kd7 $16 Re1 108. g6 Rd1+ 109. Ke6 Re1+ 110. Kd5 Rd1+ 111. Ke4 Re1+ 112. Kd4 Rd1+ 113. Ke3 Re1+ 114. Kd3 Rd1+ 115. Ke2) 107... Kf8 (107... Kh7 $11) 108. Rb7 Rd8+ 109. Ke6 Re8+ 110. Kf5 Kg8 111. Rc7 Ra8 112. Ke6 Re8+ 113. Kd7 Re5 {[#]} 114. g6 $1 {Threatening mate with Rc8+.} Rf5 115. Rc8+ Rf8 116. Rxf8+ Kxf8 117. Ke6 {Kd7 is the strong threat.} Kg8 118. Ke7 Kh8 119. h6 ({Better is} 119. Kd6 $16 {aiming for Ke6.} Kg8 120. Kd5) 119... Kg8 $11 120. h7+ Kh8 {Accuracy: White = 53%, Black = 62%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Theodorou, Nikolas"]
[Black "Fernandez Guillen, Ernesto J."]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "2546"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,69,-2,-1,6,32,0,0,-27,-21,-18,7,10,27,18,32,13,52,52,52,45,57,62,83,83,78,39,20,20,35,38,39,60,61,7,18,0,0,0,0,0,0,0,0,-8,-8,-79,-8,-69,0,0,1106,1104,1103,1058]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c5 5. d5 d6 6. Bg2 b5 7. O-O bxc4 8. Nfd2 {E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3} O-O 9. Nxc4 Ba6 {LiveBook: 6 Games} (9... a5 10. a4 Na6 11. Bd2 Nb4 12. Bc3 Bb7 13. e4 Qc7 14. Nba3 Ba6 15. Re1 Nd7 16. Bxg7 Kxg7 {1-0 (57) Inarkiev,E (2660)-Lagno,K (2523) Moscow 2015}) 10. Nba3 {The position is equal.} Nfd7 11. Bd2 $146 ({Predecessor:} 11. Rb1 Ne5 12. Nxe5 Bxe5 13. Bh6 Re8 14. Qd2 Nd7 15. Rfc1 Nb6 {0-1 (44) Tavares da Silva,L-Gadia,O Rio de Janeiro 1965}) 11... Nb6 12. Qc2 Nxc4 13. Nxc4 Nd7 {[%cal Bb8d7,Bd7e5,Be5g4][%mdl 32]} 14. Na5 Re8 (14... Bxe2 $6 15. Rfe1 $16) 15. Bc3 Qb6 16. Rfe1 Ne5 17. b3 Rac8 18. Rac1 e6 19. Qd2 Ng4 20. Bxg7 Kxg7 21. h3 Nf6 22. e4 exd5 23. exd5 Rxe1+ 24. Rxe1 c4 25. bxc4 ({White should play} 25. Nc6 $1 $14) 25... Rc5 $1 $11 26. Nc6 Bxc4 27. Nd4 {[#] White threatens Nf5+! and mate.} h6 28. Re7 Kf8 ({Avoid the trap} 28... Nxd5 $2 29. Ne6+ Kf6 30. Re8 $18) 29. Qe3 {Rxf7+! is the strong threat.} Bxd5 30. Bxd5 $40 {[%mdl 128] White has some attack.} Nxd5 ({Don't play} 30... Rxd5 $6 31. Rxa7 Qb1+ 32. Kh2 $16) 31. Re8+ Kg7 32. Qe4 (32. Ne6+ $1 $11 fxe6 33. Qxe6 Rc1+ 34. Kg2 Nf4+ 35. gxf4 Qb7+ 36. Qe4 Qxe4+ 37. Rxe4) 32... Nf6 (32... Qc7 $15) 33. Qe7 $1 {[%cal Re7f8]} Rc1+ $2 {[%mdl 8192]} ({Don't go for} 33... Qb1+ $2 34. Kh2 $18) (33... g5 $11 34. Ne6+ Kg6 35. Nxc5 Nxe8) 34. Kg2 $18 {[#] Intending Qf8+ and mate.} g5 35. Rf8 {Accuracy: White = 64%, Black = 54%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Gonzalez Zamora, Juan Carlos"]
[Black "Ordaz Valdes, Lisandra Teresa"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2538"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,96,43,25,30,14,27,0,0,-8,-3,-4,-12,-43,-8,-12,-10,-14,-12,-22,-20,-36,-28,-47,0,-16,31,-82,0,-11,-5,0,35,35,91,41,42,53,96,39,41,27,45,0,0,0,0,-91,0,0,0,0,0,0,22,-7,0,0,20,30,220,243,239,219,295,285,295,232,242,243,234,185,174,179,157,0,0,-200,-187,-234,-232,-560,-539,-646,-632,-1250,-1202]} 1. c4 e6 2. Nc3 d5 3. d4 a6 4. cxd5 exd5 5. Bf4 c6 6. e3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6} Bd6 7. Nge2 {LiveBook: 3 Games} Ne7 8. h4 $146 {White has an edge.} ({Predecessor:} 8. Bxd6 Qxd6 9. Nf4 O-O 10. Bd3 Bf5 11. O-O Nd7 12. Qc2 Bxd3 13. Nxd3 {0-1 (48) Tahay,R (2052)-Landa,K (2617) Escaldes 2017}) 8... Be6 9. h5 h6 10. Rg1 Bg4 11. Bxd6 Qxd6 12. Qb3 b5 13. Nf4 Nd7 14. f3 Be6 15. g4 c5 16. Nce2 c4 17. Qc2 Nc6 18. Qd2 Nf6 19. Ng3 (19. g5 $14 hxg5 20. Rxg5) 19... O-O-O (19... O-O $17) 20. Be2 $11 Rhe8 21. Kf2 Rg8 22. b3 Kb7 (22... Kd7 $14) 23. a4 b4 24. bxc4 dxc4 25. Rab1 (25. Rac1 $6 c3 $15) (25. Nxe6 $16 Qxe6 26. Rgc1) 25... Ka7 $1 $14 26. Nxe6 Qxe6 27. Rgc1 c3 28. Qd3 Ne5 $1 {[%cal Re5d3]} 29. Qd1 (29. Qc2 $11 Nc4 30. Qb3 (30. Rxb4 Qxe3+ 31. Kg2 Nd2 $15)) 29... Nc6 (29... Rge8 $1 $17 {Hoping for ...Nexg4+!} 30. Nf1 a5) 30. Qd3 $36 {[%mdl 2048] Black is under pressure.} Ne5 $1 {[%cal Re5d3]} 31. Qf5 Qxf5 32. Nxf5 Nc6 33. Bc4 Rd7 34. e4 {Black must now prevent d5.} Nxd4 35. Rxb4 {Threatens to win with Bxf7!} Rc8 $2 {[#]} (35... a5 $11 36. Rbb1 Nxf5 37. gxf5 Rc7 38. Rxc3 Rgc8) 36. Bxa6 $1 $18 {[%mdl 512]} Kxa6 37. Nxd4 Rc5 38. Ke3 Nh7 39. Nb3 Rc6 40. Rb5 Rdc7 41. Rb8 c2 42. Nd4 Rc3+ 43. Kf4 $2 (43. Ke2 $16) 43... Ng5 {And now ...R7c4 would win.} 44. Rb5 $2 {[#]} (44. Rb2 $11 {and White stays safe.}) 44... R7c4 $1 $19 {[%cal Rc4d4]} 45. Rd5 {[#] If White can now play Rd6+ this consolidates a bit.} Rd3 $1 {[%cal Rd3d4]} 46. Rd6+ $2 (46. Rxc2 {nothing else works.} Rcxd4 47. Rxd4 Ne6+ 48. Kg3 Nxd4 49. Rf2) 46... Kb7 {Black is clearly winning.} 47. Rxc2 Rxc2 48. a5 {[#] White wants to play Rb6+.} Rxd4 $1 {Precision: White = 33%, Black = 47%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Quesada Perez, Yasser"]
[Black "Hernandez Sanchez, Jairo Andres"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2528"]
[BlackElo "2388"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,89,75,64,43,56,56,58,54,61,49,54,18,11,3,1,-46,-30,-15,-13,-13,0,-51,-69,-68,-3,-3,-16,-47,-15,-11,-11,-13,-17,-7,10,12,12,20,93,93,118,114,103,74,86,81,74,71,88,88,349,331,658,672,672,668,672,666,633,556,548,535,526,518,650,620,1416,1289]} 1. e4 c5 2. Nc3 g6 3. d4 Bg7 4. d5 d6 5. h3 Nf6 6. Nf3 O-O 7. Bd3 Na6 8. O-O {A43: Schmid Benoni} Nc7 9. a4 b6 10. Bf4 Bb7 11. Bc4 a6 (11... Qd7 12. Qe2 Rad8 13. Rad1 Qc8 14. Rfe1 Rfe8 15. Nb5 Nh5 16. Bc1 Qb8 17. Nxc7 Qxc7 18. e5 dxe5 19. Nxe5 {1-0 (34) Moranda,W (2599)-Brodowski,P (2434) Zgierz 2018}) 12. Qd3 Nd7 {LiveBook: 3 Games} 13. Qd2 $146 ({Predecessor:} 13. Rad1 Qe8 14. Rfe1 f6 15. Bh2 Ne5 16. Nxe5 fxe5 17. Rb1 a5 18. Rf1 g5 {½-½ (31) Bronowicki,M (2326)-Brodowski,P (2424) Ustron 2008}) 13... Ne5 14. Nxe5 dxe5 15. Bh6 Qd6 16. Bxg7 Kxg7 17. f4 exf4 18. Rxf4 Qe5 19. Ra3 Rad8 20. Rb3 Rd6 21. Rf2 Ne6 22. Qd3 ({Better is} 22. Ra3 $11) 22... Nd4 $15 23. Ra3 e6 ({Black should play} 23... f5 $15) 24. Ra1 $11 exd5 25. Bxd5 Bc8 26. Raf1 {[%cal Rf2f7]} f5 27. exf5 Bxf5 28. Qxa6 Rxd5 29. Nxd5 Qxd5 30. c3 $36 {[%mdl 2048] White is more active.} Nb3 (30... Ne6 $1 $11 {keeps the balance.}) 31. Qxb6 $16 Nd2 32. Re1 Rf7 33. Qb8 Ne4 34. Rfe2 c4 35. Kh2 h5 {[#]} 36. a5 $1 {[%cal Ba4a5,Ba5a6][%mdl 544]} h4 $2 {[%mdl 8192]} (36... Qxa5 $16 {keeps fighting.} 37. Rxe4 Bxe4 38. Rxe4 Qc5) 37. a6 $18 Qc5 $2 (37... Rf6 38. Ra1 Rd6 39. Qc7+ (39. a7 Qe5+ 40. Kg1 Qc5+ 41. Kh1 Ng3+ {[%mdl 64] Double Attack} 42. Kh2 Nxe2 $11) 39... Rd7) 38. Rxe4 {White is clearly winning.} Bxe4 39. Rxe4 {[%mdl 4096] Endgame KQR-KQR} Rf1 {[%csl Gf1][%cal Rc5g1] [#]} 40. Qe5+ Qxe5+ 41. Rxe5 Ra1 42. Re4 Rxa6 43. Rxc4 Ra2 44. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} g5 45. b5 {Accuracy: White = 65%, Black = 30%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Ruiz Sanchez, Orlen"]
[Result "1/2-1/2"]
[ECO "B69"]
[WhiteElo "2514"]
[BlackElo "2385"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 34,70,10,10,8,7,8,10,10,0,14,0,22,6,35,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 gxf6 12. Kb1 Qb6 13. f5 O-O-O 14. g3 Kb8 15. fxe6 fxe6 16. Bh3 Na5 {B69: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7 9 f4 Be7 10 Nf3 b5 11 Bxf6} 17. Nd4 (17. Rhe1 b4 18. Ne2 e5 19. Bxd7 Rxd7 20. Qd5 Rc8 21. b3 Rdc7 22. Rd2 Nc6 23. Nh4 Na7 24. Nf5 {0-1 (60) Le,Q (2715)-Gupta,A (2588) Douglas 2018}) 17... b4 18. Nce2 {[%cal Bc3e2,Be2c1,Bc1b3,Bb3d2][%mdl 32] LiveBook: 3 Games} e5 19. Bxd7 Rxd7 20. Nf5 Nc4 21. Qd3 Rc8 22. Nc1 $146 ({Predecessor:} 22. Rhf1 Na3+ 23. bxa3 Rc3 24. Qd5 bxa3+ {1-0 (32) Konguvel,P (2325)-Subhayan,K (2093) Ahmedabad 2018}) 22... Bf8 23. Nb3 Rdc7 24. Nd2 Nxb2 {The position is equal.} 25. Kxb2 Rc3 26. Qd5 R3c5 $1 {[%cal Rc5d5]} 27. Qd3 {[#] aiming for Nb3.} Rc3 28. Qd5 {And now Rc1 would win.} R3c5 $1 {[%cal Rc5d5]} 29. Qb3 {Black must now prevent Rc1.} Rc3 30. Qa4 {Strongly threatening Ka1.} Ra3 $1 {[%cal Ra3a4]} 31. Qd7 {[#] Hoping for Kb1.} Qa5 (31... Qc5 $5 32. Rc1 $8 Qa5 $11) 32. Ra1 $1 (32. Nb3 {gets mated.} Rxa2+ 33. Kb1 Qa3 34. Qb7+ Kxb7 35. Nxd6+ Bxd6 36. Nc5+ Rxc5 37. Rxd6 Qb2#) 32... Qc5 {[%csl Gc8][%cal Rc5c2]} 33. Rac1 Qa5 34. Ra1 $1 (34. Nxd6 $2 {is a self mate.} Rxa2+ 35. Kb1 Ra1+ 36. Kb2 Qa3#) 34... Qc5 {[%csl Gc8][%cal Rc5c2]} 35. Rac1 {Threatens to win with Nb3.} Qa5 {Accuracy: White = 63%, Black = 87%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Perez Garcia, Alejandro"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2510"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,45,22,27,29,32,81,81,231,222,477,469,466,468,591,568,675,671,658,609]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Be7 6. Bd3 dxc4 7. Bxc4 c5 8. O-O cxd4 9. exd4 O-O 10. Re1 Nc6 11. a3 b6 {D26: Queen's Gambit Accepted: 4 e3 e6 5 Bxc5 c5 sidelines} 12. d5 exd5 13. Nxd5 Nxd5 14. Qxd5 Bb7 15. Qh5 {[#] LiveBook: 3 Games. aiming for Bg5.} Qd6 16. Bg5 {Threatens to win with Rad1.} Bf6 $146 ({Predecessor:} 16... Bxg5 17. Nxg5 Qg6 18. Qxg6 hxg6 19. Rad1 {1-0 (18) Le Roux,J (2552)-Schmitt,M (1928) Rouen 2016}) 17. Rad1 Qc5 (17... Nd4 $16 {was worth a try.} 18. Bxf6 Bxf3) 18. Bd5 $18 g6 $2 (18... Bd4) 19. Qh4 {White is clearly winning.} Bg7 20. Be3 Qa5 21. b4 Qxa3 22. Ng5 {[%csl Gg5][%cal Rh4h7] [#]} h5 23. Qe4 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Ibarra Chami, Luis Fernando"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2434"]
[BlackElo "2559"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,98,23,34,31,43,6,78,60,47,15,39,6,19,27,10,23,67,66,73,51,39,14,28,26,56,49,24,0,0,0,0,0,0,0,0,0,20,-16,0,0,0,0,52,0,0,0,69,0,0,0,0,0,0,0,0,-16,0,0,0,0,0,-19,-20,-39,-29,-102,-87,-83,-76,-73,-56,-85,-85,-86,-86,-154,-149,-173,-106,-435,-431,-511,-497]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. Bxc6+ bxc6 5. O-O Bg4 6. h3 Bh5 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} 7. e5 e6 8. exd6 Bxd6 9. d3 Nf6 {LiveBook: 10 Games} 10. Qe2 $146 ({Predecessor:} 10. Nbd2 O-O 11. Qe2 Nd5 12. Ne4 Bc7 13. c4 Nb4 14. Rd1 Bxf3 15. gxf3 {½-½ (39) Rublevsky,S (2688)-Bu,X (2676) Ningbo 2010}) 10... Nd5 11. Nbd2 Nb4 (11... O-O $11) 12. Nc4 $16 O-O 13. c3 Nd5 14. Nxd6 Qxd6 15. Qe5 Qxe5 16. Nxe5 Rfc8 17. Re1 Rc7 {[#]} 18. g4 $1 {[%cal Rg4h5]} Bg6 $1 19. a4 Re8 20. a5 f6 21. Nxg6 hxg6 22. Ra4 Rb7 $1 23. a6 Rb6 24. Ree4 Kf7 25. Ra5 Rb5 26. Rea4 Reb8 27. Kf1 Rxa5 28. Rxa5 $11 {[%mdl 4096] Endgame KRB-KRN} Rb5 29. Ra3 Nc7 (29... Rb8 $11) 30. Be3 (30. c4 $14 Rb6 31. Be3) 30... Nd5 31. Bc1 $1 {[#] Black must now prevent c4.} Rb6 ({Better is} 31... Nc7 $11) 32. Ke1 (32. c4 $14) 32... Ke7 33. Kd1 Kd6 34. Ra5 e5 35. Kc2 Rb5 36. Ra4 g5 37. b3 Rb8 38. Ba3 Nb6 39. Re4 Nd7 40. Re3 Kd5 41. d4 (41. Re1 $11) 41... cxd4 $17 42. cxd4 Rb6 ({Reject} 42... exd4 $6 43. Re7 $11) 43. dxe5 Nxe5 44. Bf8 Rxa6 45. Kb1 g6 46. Bg7 ({White should try} 46. Rc3) 46... c5 47. Re1 Ke6 (47... Nd3 $19 48. Rd1 c4) 48. h4 $2 {[%mdl 8192]} (48. Bh6 $17 {is more resistant.}) 48... Kf7 $19 49. Bxf6 Nf3 {[%mdl 64] Double Attack. Accuracy: White = 46%, Black = 65%.} ({Not} 49... Kxf6 50. hxg5+ Kxg5 51. Rxe5+ Kxg4 52. Rxc5 $15) 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Valdes Romero, Leonardo"]
[Black "Vorontsov, Pavlo"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2406"]
[BlackElo "2548"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,62,0,-5,16,-2,-8,-20,29,21,20,22,30,14,55,59,76,83,70,22,52,15,17,19,44,43,38,45,77,71,76,81,69,30,86,39,39,9,29,-9,0,0,-2]} 1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 4. O-O e6 5. d3 Nf6 6. Nbd2 h6 7. Qe1 Be7 8. e4 Bh7 9. Ne5 {A07: Réti Opening: New York and Capablanca Systems} (9. Qe2 O-O 10. Re1 a5 11. a4 Na6 12. Nb3 dxe4 13. dxe4 Bxe4 14. Be3 Nb4 15. Red1 Qc8 16. c3 Nc2 17. Rac1 Nxe3 18. Qxe3 Qc7 {0-1 (39) Hasangatin,R (2505)-Alekseev,E (2636) Sochi 2016}) 9... Nbd7 10. Nxd7 Nxd7 11. Qe2 O-O 12. f4 {LiveBook: 9 Games} dxe4 13. dxe4 Qb6+ 14. Kh1 Nc5 $146 ({Predecessor:} 14... a5 15. Nc4 Qa6 16. Re1 Bc5 {½-½ (27) Junker,C (2064)-Grimm,J (1939) Hofheim 2014}) 15. Nc4 {[%cal Bd2c4,Bc4e5,Be5g4][%mdl 32]} Qa6 16. b3 b5 17. Ne5 f6 18. Ng4 b4 19. Qxa6 Nxa6 20. Bb2 h5 21. Nf2 Nc5 22. Rfe1 Rfd8 23. Re2 a5 24. e5 Rac8 25. exf6 Bxf6 26. Bxf6 gxf6 27. Bf3 Bg6 (27... h4 $11 {keeps the balance.}) 28. Rae1 Rd4 29. Kg1 Kf7 30. Ne4 Bxe4 31. Bxe4 Nxe4 {Accuracy: White = 42%, Black = 48%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.15"]
[Round "3"]
[White "Valdes Romero, Leonardo"]
[Black "Vorontsov, Pavlo"]
[Result "*"]
[WhiteElo "2406"]
[BlackElo "2548"]
[Annotator "TA"]
[PlyCount "23"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,17]} 1. Nf3 {Predecessor:} d5 $146 2. Nc3 Nf6 3. d4 e6 4. Bf4 a6 5. e3 c5 6. Bd3 cxd4 7. exd4 Nc6 8. O-O Be7 9. Ne2 Nb4 10. c3 Nxd3 11. Qxd3 O-O 12. Ne5 {½-½ (39) Mamedyarov,S (2801)-Giri,A (2782) chess.com INT 2018} *

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Bok, Benjamin"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "1-0"]
[ECO "A26"]
[WhiteElo "2643"]
[BlackElo "2510"]
[Annotator "TA"]
[PlyCount "161"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,161,4,0,0,0,0,0,-3,9,16,23,16,15,24,14,14,15,18,18,25,18,18,16,16,16,16,14,18,20,22,16,26,26,29,29,33,26,39,25,25,25,25,25,25,25,25,25,25,17,25,0,0,0,0,0,0,0,0,0,21,21,21,21,21,21,24,24,111,111,111,111,34,34,132,132,132,132,156,0,16,16,16,16,16,0,7,0,0,0,7,0,16,16,16,10,10,0,7,7,17,8,34,17,135,129,120,97,183,97,97,97,97,97,97,97,90,90,124,121,822,715,646,157,593,157,4137,2663,2853,2747,986,690,637,583,604,451,616,627,1583,1387,29966,29970,29967,12787]} 1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. e4 Be6 7. Nge2 Qd7 8. Nd5 Nce7 9. d4 c6 {A26: English Opening vs King's Indian with ...Nc6 and d3} 10. Nxe7 Nxe7 11. d5 {LiveBook: 10 Games} cxd5 {The position is equal.} 12. cxd5 Bh3 $1 {[%cal Rh3g2]} 13. O-O Bxg2 14. Kxg2 O-O 15. f3 f5 16. Nc3 {[#]} h5 $146 ({Predecessor:} 16... b5 17. Bd2 {1-0 (46) Sher,M (2485)-Mestel,A (2505) Hastings 1990}) 17. Qa4 Qxa4 18. Nxa4 Rfc8 19. Bg5 Kf7 20. Rac1 Rxc1 21. Rxc1 {Threatens to win with Rc7.} Rc8 $1 22. Rxc8 Nxc8 $11 {[%mdl 4096] Endgame KBN-KBN} 23. Kf2 Bf6 24. Be3 Bd8 25. Ke2 fxe4 26. fxe4 a6 27. b3 Ke8 28. Kf3 Ba5 29. g4 hxg4+ 30. Kxg4 b5 31. Nb2 Ne7 32. Nd3 Ng8 33. Bg5 Kf7 34. h4 Bc3 35. h5 Kg7 36. Nc1 Bb4 37. Ne2 Be1 38. Ng1 Bf2 39. Nf3 Bc5 40. hxg6 Kxg6 41. Nh4+ Kf7 42. Kf5 Bf2 43. Nf3 Bb6 (43... Bc5 $11) 44. Ne1 $1 $16 Ba5 45. Nd3 Bc3 (45... Ne7+ $16 46. Kg4 Ng8) 46. a4 $14 Ba5 (46... bxa4 $14 47. bxa4 Ne7+ 48. Kg4 Ng8) 47. axb5 $16 axb5 48. Nc1 $1 Bb4 49. Nd3 ({White should try} 49. Na2 $16 Be1 50. Kg4) 49... Ba5 $11 50. Nf2 Be1 51. Ng4 Bc3 52. Bd8 Bb4 53. Bh4 Bd2 54. Bd8 Bb4 55. Bg5 Bc3 56. Nh2 Ba5 57. Nf3 Bc3 58. Kg4 Bb4 59. Nh4 Bc5 60. Nf5 Bb4 61. Kf3 Ke8 (61... Nf6 $11) 62. Ke2 $1 $16 Kd7 63. Kd3 Ke8 (63... Ba5 $16 {was called for.}) 64. Kc2 (64. Ne3 $1 $18) 64... Kd7 65. Kc1 Kc7 66. Kd1 Kd7 67. Kc2 Kc7 68. Kd3 Kd7 69. Ne3 $1 Kc7 $2 {[%mdl 8192]} (69... Ba3 $16) 70. Nc2 $1 $18 Bc5 {[#]} 71. Ke2 $2 (71. b4 $1 $18 {and the rest is easy.}) 71... Kb7 $2 {[#]} (71... b4 $16 {is tougher.} 72. Kd3 Kd7) 72. Kf3 $2 (72. b4 $1 $18 {is the precise move to win.}) 72... Kc8 $2 (72... b4 $16 73. Bd2 Nf6 74. Nxb4 Kb6) 73. b4 {[%cal Bb3b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Bb6 74. Na3 Bd8 75. Be3 Nf6 76. Nxb5 Ne8 77. Na3 Kd7 78. b5 Nc7 79. b6 Ne8 80. b7 Kc7 {[#]} 81. Bb6+ $1 {[%mdl 512] Accuracy: White = 63%, Black = 43%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Quesada Perez, Yasser"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2559"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "161"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,161,38,59,7,1,8,15,20,31,-27,-6,-30,-27,-43,-38,-70,-85,-108,-19,-43,0,-17,23,30,27,14,28,0,32,0,0,0,-13,-58,0,0,0,0,50,45,74,45,46,0,0,0,114,0,0,0,0,-28,0,0,0,25,0,0,0,0,0,12,71,90,96,103,229,219,331,304,370,330,392,356,413,400,497,497,497,482,497,423,456,461,494,493,495,495,575,497,497,497,497,497,497,494,870,818,730,494,494,0,488,490,490,490,491,476,475,472,456,443,448,448,439,421,465,433,427,379,493,489,950,950,909,887,1035,991,1429,1025,1260,742,2272,2359,2064,1930,29970,29972,29966,5097,5089,5089,29974,29975,29971,29972]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qf3 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2} Nf6 8. O-O-O h5 9. Nxc6 dxc6 {LiveBook: 9 Games} 10. Bg5 $146 ({White should try} 10. Be2 $14) ({Predecessor:} 10. h3 b5 11. e5 Nd5 12. Nxd5 exd5 13. Bd3 Be6 14. Rhe1 Qxe5 {½-½ (70) Zherebukh,Y (2633)-Ganguly,S (2657) Saint Louis 2018}) 10... e5 $11 11. Be2 Be7 12. Qe3 b5 13. Bxf6 ({Better is} 13. Kb1 $14) 13... gxf6 14. Qg3 Kf8 15. Kb1 Be6 16. Qe3 Qa5 17. b3 Bb4 (17... Qb4 $17 18. Rd3 a5) 18. Rd3 Qc7 19. Rhd1 Qe7 20. f4 Bc5 21. Qd2 {f5 is the strong threat.} Bd4 22. f5 Bc8 (22... Bd7 {looks sharper.} 23. Rh3 h4 24. Qe1 a5 25. Rdd3 Qb4) 23. Bf3 (23. Rh3 $5 {[%cal Rh3h5]}) 23... b4 $1 {[%cal Rb4c3]} 24. Rxd4 exd4 25. Ne2 c5 (25... Ra7 $1 $15) 26. e5 $36 {[%mdl 2048] White fights for an advantage.} Ra7 $1 27. e6 $1 Bb7 28. Nf4 Bxf3 29. gxf3 {Black must now prevent exf7.} Qd6 30. exf7 Kxf7 31. Ng6 Raa8 (31... Rg8 $11) 32. Qe2 (32. Nxh8+ $16 Rxh8 33. f4) 32... Rhe8 33. Qc4+ Kg7 34. f4 Ra7 {Threatens to win with ...Kh6.} 35. Rg1 Kh6 {[#] aiming for ...Rg7.} 36. Ne5 $1 {[%mdl 512]} fxe5 37. Rg6+ {[#]} Qxg6 $1 38. fxg6 exf4 {And now ...f3 would win.} 39. Qxc5 {[%mdl 4096] Endgame KQ-KRR} Rg7 {[#]} (39... Re1+ $11 {remains equal.} 40. Kb2 Rae7) 40. Qf5 $1 $16 Re1+ 41. Kb2 Rf1 (41... Rxg6 $16 42. Qxf4+ {[%mdl 64] Double Attack} Kh7) 42. Qd3 $18 {[%mdl 64] Double Attack} Rg1 (42... Re1 {was necessary.} 43. Qxd4 {[%mdl 64] Double Attack} Rf1) 43. Qxd4 {[%mdl 64] Double Attack} R7xg6 44. Qxf4+ Kh7 45. Qxb4 R1g2 46. h4 R2g4 47. Qe7+ Rg7 48. Qf6 R7g6 49. Qf2 Kg7 50. Qa7+ Kh6 51. Qe7 Rg7 52. Qf6+ Kh7 53. a4 R7g6 54. Qf7+ Kh6 55. Qe7 Rf4 56. Qd8 {[%cal Rd8h8]} Rgg4 (56... Kg7 $142 57. Qc7+ Rf7) 57. Qd6+ Kg7 58. Qc7+ Kg6 59. Qd6+ $2 (59. c4 $18) 59... Rf6 $2 {[%mdl 8192]} (59... Kg7 $1 $11 {and Black has nothing to worry.} 60. Qxa6 Rf6 61. Qb7+ Kh6) 60. Qd3+ Kg7 61. Qd7+ Kg6 62. Qe8+ Kh6 63. Qe3+ Kg6 64. Qe1 Kf5 65. a5 Re4 66. Qf2+ Kg6 67. Qg3+ Rg4 68. Qe1 Rff4 69. Qe8+ Rf7 (69... Kg7 $142 70. Qxh5 Rg6) 70. Qg8+ Kf6 71. Qc8 Rxh4 72. Qxa6+ Kg7 73. Qd6 Rhf4 74. Qe5+ Kg6 75. a6 R4f6 76. Qe4+ Kg7 77. Qd4 Rf8 78. a7 (78. b4 $142 Kg6 79. a7 Rf5 80. Qe4 h4 81. Qxh4 Rc8 82. Qe4 Kf6 83. a8=Q Rxa8 84. Qxa8) 78... Rh8 79. Qe5 Ra8 80. Qg5+ Rg6 81. Qd5 {Accuracy: White = 59%, Black = 34%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Vorontsov, Pavlo"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2548"]
[BlackElo "2482"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,89,58,73,54,64,50,62,34,33,20,32,39,138,32,40,10,28,-20,97,104,73,78,151,156,237,233,246,241,241,233,227,165,142,134,207,142,142,137,135,145,128,138,133,130,135,123,139,138,161,170,164,168,166,162,217,211,242,235,419,422,404,387,366,412,409,402,423,395,388,400,381,365,653,657,715,715,712,710]} 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bf5 5. Nh4 Bc8 6. c4 {[%cal Bc2c4,Bc4c5][%mdl 32]} Nb6 7. Nf3 Bf5 {LiveBook: 3 Games. B01: Scandinavian Defence} (7... g6 8. c5 Nd5 9. Bc4 Bg7 10. Qb3 c6 11. Nc3 O-O 12. O-O Nxc3 13. bxc3 b5 14. cxb6 axb6 15. Re1 b5 16. Bd3 Nd7 17. Ba3 Bf6 18. Nd2 Re8 19. Ne4 Bg7 20. Ng5 e6 21. Ne4 Nf6 22. Bc5 Nxe4 23. Bxe4 {1-0 (50) Perunovic,M (2696)-Roganovic,M (2524) Belgrade 2014}) 8. Qb3 a5 $146 ({Predecessor:} 8... e5 9. dxe5 Nc6 10. a3 Nd4 11. Nxd4 Qxd4 12. Qe3 O-O-O 13. Qxd4 Rxd4 14. Nd2 Nd7 15. Nf3 {1-0 (35) Hoerhammer,S-Peltomaa,E Finland 1989}) 9. c5 a4 {White is slightly better.} 10. Qb5+ Bd7 11. Qe2 Nd5 12. Nc3 c6 ({Black should try} 12... Bc6 $14) 13. Ne5 (13. Ne4 $1 $16 {[%csl Gc5][%cal Re4d6]} e6 14. Ne5) 13... Be6 $14 14. Ne4 {And now Nxf7! would win.} h6 $1 15. f4 {[%cal Bf2f4,Bf4f5][%mdl 32] Strongly threatening f5!} Qc7 (15... g6 $1 $11 {remains equal.}) 16. g4 $1 $36 {[%cal Bg2g4,Bg4f5][%mdl 2080] White is in control.} g6 17. Bh3 Qa5+ ({Better is} 17... a3) 18. Bd2 Qb5 {[#]} (18... Qa6 $16 19. f5 gxf5 20. gxf5 Qxe2+ 21. Kxe2 Bc8) 19. Nd3 $1 $18 {Hoping for f5.} Kd8 {[#]} 20. f5 $1 {[%cal Rf5e6]} gxf5 21. gxf5 Bd7 22. Rg1 Qc4 23. Ne5 Qxe2+ 24. Kxe2 Be8 25. Rg3 Nd7 26. Rag1 N7f6 27. Nxf6 Nxf6 28. Nc4 Ra6 29. Nb6 h5 30. Ke1 Bd7 31. Bf1 Ra7 32. Bd3 h4 33. R3g2 a3 (33... h3 $142 34. Rg3 Bh6 35. Bxh6 Rxh6) 34. b3 h3 35. Rg3 Be8 $2 (35... Bh6 {was called for.} 36. Bxh6 Rxh6) 36. Bf4 Rh4 37. Bb8 Ra6 38. Bxa6 bxa6 39. Be5 Nh7 40. Rg4 Rh5 41. Rf1 f6 42. Bg3 Bf7 $2 {[#]} (42... Ng5 43. Ke2 Rh6) 43. d5 $1 {White is clearly winning.} Bxd5 (43... cxd5 44. c6) 44. Nxd5 cxd5 45. c6 {Precision: White = 68%, Black = 51%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Cuenca Jimenez, Jose Fernando"]
[Black "Rios, Cristhian Camilo"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2513"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,82,32,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-34,-24,-18,-14,-14,-31,-50,-52,-60,-54,-71,-58,-43,-70,-121,-99,-360,-178,-162,-163,-155,-173,-178,-177,-166,-169,-171,-157,-293,-293,-300,-300,-299,-295,-270,-264,-257,-256,-263,-264,-256,-257]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 Re8 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} (7... dxc4 8. Bxc4 Bd6 9. e4 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. O-O-O Qe8 13. Qxe8 Rxe8 14. f3 Be6 15. Bxe6 Rxe6 {½-½ (67) Navara,D (2727)-Harikrishna,P (2732) Prague 2018}) 8. Rd1 a6 9. Qc2 Bd6 10. a3 h6 11. h3 dxc4 12. Bxc4 {LiveBook: 5 Games} e5 13. d5 Ne7 14. O-O b5 $146 ({Predecessor:} 14... Bf5 15. e4 Bd7 {½-½ (55) Oms Pallisse,J (2481)-Baron Rodriguez,J (2437) Lorca 2005}) 15. Ba2 Ng6 16. e4 Nh5 17. Ne2 Qf6 18. Qd3 a5 19. Rc1 Bd7 20. Rfe1 Reb8 21. Kh2 Nhf4 22. Nxf4 Nxf4 23. Bxf4 Qxf4+ 24. g3 Qf6 25. Kg2 b4 26. Nd2 bxa3 27. bxa3 Rb2 28. Rc2 {[#]} (28. Bb1 $15) 28... Bxa3 $1 $17 {[%mdl 512]} 29. Rxc7 $2 {[%mdl 8192]} (29. Ra1 $17 {was necessary.}) (29. Qxa3 Rxc2) 29... Bb5 (29... Rxa2 $142 30. Rxd7 Rc8) 30. Bc4 $19 Bd6 $36 {[%mdl 2048] Keeping White busy.} 31. Qc3 Rb4 ({Reject} 31... Bxc7 $6 32. Qxb2 Bd7 33. Be2 $11) 32. Rc6 Bxc6 33. dxc6 {[#]} Rb6 $1 {...Bb4 is the strong threat.} 34. Bd5 Bb4 35. Qe3 (35. Qc2 $17 {was called for.}) 35... Rxc6 {Black has a decisive advantage.} 36. Bxc6 Qxc6 37. Re2 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 38. Nf3 Qe6 {aiming for ...a3.} 39. Qd3 a3 40. Qb1 Qc4 41. Qa2 {[#]} Qxe2 $1 {[%mdl 512] Precision: White = 54%, Black = 85%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Berdayes Ason, Dylan Isidro"]
[Black "Baryshpolets, Andrey"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2468"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,72,0,0,0,0,0,0,0,0,0,0,10,26,10,12,72,-29,-29,-25,-29,-29,0,0,0,0,0,0,0,-77,0,0,0,0,0,0,0,-7,0,0,0,-7,36,-70,-70,-150,-150,-206,-199,-339,-339,-358,-365,-29997,-29998]} 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. Nxd4 a6 11. Re1 Qc7 12. Bf1 Be7 13. Qf3 O-O 14. Bf4 Bd6 15. Bxd6 Qxd6 16. Rad1 Qc7 17. c4 Rb8 18. Qg3 Qxg3 19. hxg3 Bd7 {½-½ (61) Karjakin,S (2773)-Duda,J (2737) chess.com INT 2018}) 7. O-O Nc6 8. Nb3 Nf6 9. Qe2 a6 10. a4 Bd6 11. Rd1 {LiveBook: 32 Games} Qe7 12. Nbxd4 Nxd4 13. Rxd4 e5 14. Rxd6 Qxd6 15. b3 Be6 {Threatens to win with ...e4.} 16. Ba3 Bxc4 17. Qxc4 {[#]} Qd5 $146 (17... Qc6 $1 $11) 18. Qxd5 (18. Qc3 $1 $16 Nd7 19. Qe1) 18... Nxd5 $11 19. Nxe5 f6 20. Nc4 $1 Kd7 21. Rd1 Ke6 22. Re1+ Kd7 $1 23. Rd1 Ke6 24. Nd6 {[#]} (24. Re1+ $11 {keeps the balance.} Kd7 25. Rd1) 24... b6 ({Better is} 24... b5 $1 $17 {[%cal Rb5b4][%mdl 512] Strongly threatening ...b4.} 25. axb5 axb5 26. Nxb5 Rhb8 27. Nd4+ Kf7) 25. c4 Nc3 26. Re1+ Kd7 27. Kf1 {And now Rc1 would win.} b5 28. Nf5 $1 bxc4 ({Don't blunder} 28... bxa4 $2 29. Re7+ Kd8 30. Bb4 $18 (30. Rxg7 Rb8 $11) (30. Nxg7 axb3 31. Ne6+ Kc8 $11)) 29. Re7+ Kc6 30. bxc4 Rhe8 {Hoping for ...Rxe7.} 31. Nd4+ ({White should play} 31. Rxg7 $14 Rad8 32. g3) 31... Kb6 $15 32. a5+ (32. Rxg7 $15 Rac8 33. c5+ Ka5 34. Ra7) 32... Kxa5 $17 {aiming for ...Nb1.} 33. Rb7 (33. Rxg7 $17 Rac8 34. Nf5) 33... Ka4 $19 34. Bb4 (34. Bd6 {was the only defense.} Ne4 35. Rb4+ Ka3 36. Rb3+ Ka2 37. Bb4) 34... Ne4 35. Be1 Rab8 36. Ra7 $2 {[#]} (36. Rxb8 $19 Rxb8 37. Ne6) 36... Nd2+ $1 {[%mdl 512] Precision: White = 49%, Black = 58%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Ordaz Valdes, Lisandra Teresa"]
[Black "Theodorou, Nikolas"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "2397"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,82,41,25,35,6,6,0,0,10,1,8,9,0,0,0,0,-11,-6,-31,-13,-45,14,0,0,0,0,0,10,14,15,0,0,6,18,0,0,-16,-8,-35,-3,-6,0,0,-4,-81,0,-84,-81,-228,-129,-123,-115,-193,-205,-330,-346,-285,-200,-195,-196,-393,-393,-381,-393,-393,-393,-393,-368,-567,-567,-597,-462]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c6 7. Qd2 {LiveBook: 148 Games} d5 {E73: King's Indian: Averbakh Variation without 6...c5} 8. exd5 (8. f3 {looks sharper.} dxe4 9. fxe4 e5 10. d5 Na6 11. Nf3) 8... cxd5 9. Bxf6 Bxf6 {The position is equal.} 10. cxd5 Na6 $146 {[%cal Bb8a6,Ba6c7,Bc7d5][%mdl 32]} ({Predecessor:} 10... e6 11. dxe6 Bxe6 12. Rd1 Bf5 13. Nf3 Nc6 14. O-O Qa5 15. Qf4 {½-½ (49) Berczes,D (2557)-Jankovic,A (2584) Rome 2011}) 11. Bf3 Nc7 12. Nge2 Rb8 13. O-O b5 14. b4 Bb7 {[%cal Rc7d5]} 15. a4 Nxd5 16. Ne4 a5 (16... bxa4 $15 17. Rxa4 a6) 17. bxa5 b4 18. Nc5 Ba8 19. Rfd1 Re8 20. a6 Qa5 21. Qd3 Red8 22. Qc4 e6 23. Nb3 Qb6 24. a5 Qa7 25. Nc5 Be7 {[%mdl 1024] Black has compensation.} 26. Rdc1 Rdc8 27. Rab1 Bc6 28. Qa2 (28. Qb3 $11) 28... Rb5 ({Black should try} 28... Bxc5 $1 $17 29. dxc5 Rb5) 29. Nd3 (29. Be4 $11 {remains equal.}) 29... Qxa6 $17 30. Ne5 (30. Ra1 $17) 30... Bb7 (30... Rxa5 $19 31. Qxa5 Qxa5 32. Nxc6 Rxc6 $1 {[%mdl 512]} 33. Rxc6 Kg7 34. Bxd5 Qxd5) 31. Rxc8+ Bxc8 32. Qc4 (32. Nc4 $17) 32... Bb7 $19 33. Bxd5 (33. Qc1 $142) 33... Bxd5 34. Qc7 Qb7 35. Qxb7 Bxb7 36. Ra1 $2 (36. f3 {was necessary.}) 36... b3 {[%cal Bb4b3,Bb3b2][%mdl 32] aiming for ...b2.} 37. Nc3 b2 38. Rb1 Rb3 39. Nd1 {[#]} Ba3 $1 40. f3 (40. Nc4 $142 Be4 41. Nxa3 Rxa3 42. Rxb2) 40... Ba6 41. Kf2 Kg7 {Accuracy: White = 32%, Black = 65%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Ruiz Sanchez, Orlen"]
[Black "Espinosa Veloz, Ermes"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2385"]
[BlackElo "2515"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,84,25,27,31,13,15,15,33,16,14,10,6,8,15,9,12,12,5,0,0,0,8,0,0,0,16,0,0,0,13,13,16,0,0,-10,-8,0,-7,-18,0,0,0,-92,-79,-85,-82,-79,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Be2 Nd7 7. O-O Ngf6 8. d4 {B11: Caro-Kann: Two Knights Variation} dxe4 9. Nxe4 Nxe4 10. Qxe4 Nf6 11. Qd3 Bd6 12. Rd1 {LiveBook: 3 Games} Qc7 13. c4 $146 ({Predecessor:} 13. Bd2 Bh2+ 14. Kh1 Bf4 15. Be1 O-O {1-0 (46) Vachier Lagrave,M (2804)-Riazantsev,A (2671) Doha 2016}) 13... Bh2+ 14. Kh1 Bf4 15. Bf3 O-O 16. Bd2 Bxd2 17. Rxd2 Rfd8 18. Rad1 Rd7 19. Qe3 Rad8 20. g4 g6 21. Kg2 a6 22. Qc3 Qf4 23. Qe3 Qc7 24. Qc3 Qf4 25. Qe3 g5 26. h4 h6 27. Qxf4 gxf4 28. Kh3 Kg7 29. b3 Kg6 30. Be2 Ne4 31. Bd3 f5 32. Bxe4 (32. gxf5+ $1 $11 {keeps the balance.} exf5 33. Bxe4 fxe4 34. d5 cxd5 35. Kg4) 32... fxe4 $11 {[%mdl 4096] Endgame KRR-KRR} 33. Re2 Rxd4 34. Rde1 Rd3+ (34... e5 $17 35. Rxe4 Rxe4 36. Rxe4 Kf6) 35. Kh2 {The position is equal.} Rd2 {...Rxe2 is the strong threat.} 36. Rxe4 {[%mdl 64] [#] Double Attack} Rxf2+ 37. Kg1 Rdd2 {Strongly threatening ...Rg2+.} 38. Rxe6+ Kf7 {And now ...Rg2+ would win.} 39. Re7+ {[%mdl 64] Double Attack} Kf8 {Black wants to play ...Rg2+.} 40. Re8+ Kf7 {White must now prevent ...Rg2+.} 41. R8e7+ Kf8 {With the idea ...Rg2+.} 42. Re8+ Kf7 {Accuracy: White = 62%, Black = 71%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "4"]
[White "Estrada Nieto, Julian"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "2251"]
[BlackElo "2514"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,94,14,0,7,12,24,0,0,0,13,18,25,22,19,-22,14,21,35,25,32,30,118,109,97,34,26,27,36,17,72,77,100,0,0,0,0,0,2,0,0,-96,-56,-170,-158,-392,-365,-382,-390,-409,-403,-372,-212,-199,-166,-166,-166,-246,-186,-387,-384,-382,-374,-2000,-737,-29989,-29990,-29990,-29991]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. O-O d6 8. a3 O-O 9. Nc3 Bg4 10. Be3 Nd4 {C84: Closed Ruy Lopez: Unusual White 6th moves} 11. Bxd4 exd4 12. Nd5 Nd7 (12... Nxd5 13. Bxd5 Rc8 14. a4 c6 15. Bb3 d5 16. h3 Bh5 17. axb5 axb5 18. exd5 {1-0 (47) Karjakin,S (2782)-Aronian,L (2764) Paris 2018}) 13. h3 Bxf3 14. Qxf3 c6 15. Nf4 {LiveBook: 25 Games} Nc5 16. Ba2 a5 17. Ne2 Bf6 {[#]} 18. Qg4 $146 ({Predecessor:} 18. e5 dxe5 19. Qxc6 {1-0 (37) Stevic,H (2615)-Brkic,A (2600) Gunja 2014}) 18... Kh8 19. f4 b4 20. Qf3 Qb6 21. e5 Be7 22. Kh1 b3 23. cxb3 {[%cal Bc2b3,Bb3b4][%mdl 32]} dxe5 24. fxe5 Rad8 (24... Nd7 $1 $11) 25. b4 $1 $16 {[%cal Rb4c5]} Nd7 26. Bxf7 (26. Qg3 $16) 26... Nxe5 $14 27. Qe4 Bf6 28. Bb3 axb4 (28... Ng6 $11 {remains equal.}) 29. a4 $16 Rde8 30. Qxd4 (30. a5 $16 Qa6 31. Nxd4) 30... c5 {[%cal Bc6c5,Bc5c4,Bc4d3,Bd3d2][%mdl 32]} 31. Qd5 {next Nf4 is good for White.} Rd8 32. Qe4 Nxd3 {[#] ...c4 is the strong threat.} 33. a5 Qa7 34. Bc2 (34. Nf4 $11 Rd4 35. Qxd3 Rxd3 {[%mdl 64] Discovered Attack} 36. Nxd3) 34... Rfe8 35. Qg4 {[#]} (35. Qf3 $15 c4 36. Rad1) 35... c4 $1 $19 {Strongly threatening ...Nf2+.} ({Much less strong is} 35... Bxb2 36. Rab1 $17) 36. Bxd3 $2 (36. Rxf6 $17 gxf6 37. Qxc4 Nxb2 38. Qf4) 36... cxd3 37. Nf4 d2 38. Rad1 Qxa5 39. Ne6 {Hoping for Rxf6.} Rd7 (39... h5 $142 40. Qc4 Rd6) 40. Ng5 Rde7 ({Inferior is} 40... Bxg5 41. Qxd7 Qe5 42. Rxd2 $11) 41. Nf3 Bxb2 42. Rxd2 (42. Nxd2 $142 Qc5 43. Qc4 Qxc4 44. Nxc4) 42... Bf6 43. Rd7 $2 (43. Rb1) 43... Qb5 44. Rfd1 Rxd7 45. Rxd7 $2 (45. Qxd7 Qxd7 46. Rxd7) 45... b3 (45... h5 $142 46. Qg6 Qxd7 47. Qxh5+ Kg8) 46. Nd4 Qf1+ 47. Kh2 Be5+ {Accuracy: White = 38%, Black = 42%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Cordova, Emilio"]
[Black "Miranda Mesa, Elier"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2595"]
[BlackElo "2499"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,45,-9,-21,10,0,0,0,4,1,16,10,9,5,13,6,4,15,2,0,25,3,13,0,0,-57,0,0,0,-38,-37,-17,0,0,0,-15,0,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 dxc4 5. e4 b5 6. Be2 {LiveBook: 32 Games. D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} g6 (6... e6 7. O-O Be7 8. a4 b4 9. e5 bxc3 10. exf6 Bxf6 11. bxc3 Ba6 12. Ne5 Bxe5 13. dxe5 Qxd1 14. Rxd1 {1-0 (27) Adhiban,B (2650)-Rapport,R (2715) Reykjavik 2018}) 7. O-O Bg7 8. a4 b4 9. e5 bxc3 $146 ({Predecessor:} 9... Nd5 10. Ne4 c3 11. Bc4 cxb2 12. Bxb2 a5 13. Re1 O-O {1-0 (37) Pert,R (2423)-Aradhya,G (2231) London 2016}) 10. exf6 Bxf6 11. bxc3 O-O 12. Ba3 Be6 13. Nd2 {[%cal Bf3d2,Bd2c4,Bc4e3][%mdl 32]} Nd7 14. Nxc4 Qc7 15. Re1 Rfd8 16. Ne3 Rab8 17. Bd3 ({White should play} 17. Rb1 $11) 17... Nb6 (17... c5 $15) 18. Rc1 $11 a5 19. Bc5 Nd7 20. Ba3 Nb6 {The position is equal.} 21. Bc5 Nd7 22. Ba3 Nb6 23. Bc5 {Accuracy: White = 49%, Black = 38%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Baryshpolets, Andrey"]
[Black "Shtembuliak, Evgeny"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2578"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,83,15,15,28,0,34,39,44,42,37,44,65,39,52,14,30,19,35,13,25,30,51,41,56,55,41,42,54,49,119,122,124,119,119,123,205,176,264,183,395,397,382,399,389,388,386,379,638,617,600,351,522,518,518,511,499,471,586,514,29987,29988,29988,1207,1060,1033,884,647,636,627]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 6. Nxe4 Bxe4 7. Bf4 d6 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} (7... Be7 8. Nd2 Bb7 9. e4 Bg5 10. Qg4 Bxf4 11. Qxf4 O-O 12. Bd3 d6 13. O-O e5 14. Qe3 exd4 15. Qxd4 {½-½ (29) Lupulescu,C (2619)-Nihal,S (2556) Abu Dhabi 2018}) 8. e3 Nd7 9. Bd3 {LiveBook: 3 Games} Bb7 {The position is equal.} 10. e4 h6 11. d5 $146 ({Predecessor:} 11. O-O g5 12. Be3 Bg7 13. h3 Qe7 14. Re1 c5 15. Qd2 cxd4 16. Bxd4 {½-½ (26) Reinecke,R (2074)-Goy,U (1987) GER email 2012}) 11... g5 12. Be3 Bg7 13. Nd4 Qe7 14. O-O Ne5 15. Be2 c5 $1 {[%cal Rc5d4]} 16. dxc6 Nxc6 17. Nb5 O-O 18. Qd2 Rad8 19. Rad1 Ne5 20. Nxa7 Bxe4 21. Nb5 $36 {[%mdl 2048] White fights for an advantage.} Qb7 22. f3 $1 {[%cal Rf3e4]} ({Much weaker is} 22. Nxd6 Rxd6 23. Qxd6 Bxg2 $15) 22... Bc6 (22... Bg6 $14) 23. Nxd6 $16 Qb8 24. Qb4 Nd7 25. Rd2 f5 (25... Bf6 $16 26. h3 Be7) 26. Rfd1 $18 g4 (26... Kh7 $142 27. Bf2 Kg6) 27. f4 e5 $2 (27... h5 28. a4 Bf6) 28. c5 bxc5 29. Bxc5 exf4 30. Bc4+ {[%cal Be2c4,Bc4f7,Bf7d5][%mdl 32]} Kh7 31. Nf7 Nxc5 $2 (31... Qxb4 32. Bxb4 Rb8 33. Rxd7 Bxd7) 32. Qxc5 (32. Rxd8 $2 {perishes.} Qa7 $19) 32... Rxf7 33. Bxf7 Rxd2 (33... Rf8 {was worth a try.} 34. Qxc6 Rxf7) 34. Qxf5+ Kh8 35. Rxd2 f3 36. Qc5 Be4 37. Bd5 Qe5 (37... Bf5 $18 38. Bxf3 Qf4 39. Rd8+ Kh7) 38. Qc8+ {[%mdl 64] [#] Double Attack} Kh7 39. Bg8+ (39. Qg8+ $142 Kg6 40. Bxe4+ Kg5 41. Rd5 Kf4 42. Rxe5 f2+ 43. Kf1 Kxe5 44. Qd5+ Kf6 45. Qd6+ Kf7 46. Bg6+ Kg8 47. Qe6+ {[%mdl 64] Double Attack} Kh8 48. Qe8+ Bf8 49. Qxf8#) 39... Kg6 {White is clearly winning.} 40. Qxg4+ {[%mdl 64] Double Attack} Kf6 41. Qh4+ Kg6 {[#] Threatens to win with ...Qc5+.} 42. Qg3+ {Accuracy: White = 79%, Black = 45%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Gonzalez Vidal, Yuri"]
[Black "Fernandez Guillen, Ernesto J."]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2553"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,85,20,36,30,39,21,47,39,40,38,58,40,39,43,40,42,44,44,53,39,35,23,44,44,43,43,58,50,59,22,50,15,43,43,58,58,97,94,100,111,172,153,164,115,106,93,104,111,157,30,216,190,172,214,327,327,327,320,286,217,330,237,243,219,190,176,29973,29973,29973,29974]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. Re1 h6 7. c3 d6 8. Nbd2 Bb6 9. Bb3 Be6 {LiveBook: 7 Games} 10. Bxe6 $146 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} ({Predecessor:} 10. h3 Bxb3 11. Qxb3 Qd7 12. Nc4 Na5 13. Nxb6 axb6 14. Qc2 Rfe8 15. d4 exd4 16. Nxd4 Nc6 17. Bf4 Nxd4 18. cxd4 {0-1 (80) Fedorov,A (2569)-Malakhov,V (2717) Riga 2014}) 10... fxe6 11. Nc4 Nd7 12. b4 {[%cal Bb2b4,Bb4b5][%mdl 32] White is slightly better.} Qf6 13. a4 {Threatens to win with a5.} a5 14. Nxb6 Nxb6 15. b5 Ne7 16. Be3 Nd7 17. d4 b6 18. Ra2 Ng6 19. Kh1 Rf7 20. Ng1 {[%cal Bf3g1,Bg1e2,Be2c1,Bc1d3][%mdl 32]} Raf8 21. f3 Ne7 22. Rf2 g5 23. Qd2 Qg6 24. h3 Kh7 25. Ne2 Ng8 26. Nc1 Ngf6 27. Nd3 Rg7 28. dxe5 dxe5 (28... Nxe5 $16 {was worth a try.} 29. Nxe5 dxe5) 29. c4 $1 $18 h5 30. Qb2 g4 {And now ...gxh3 would win.} 31. Nxe5 Nxe5 32. Qxe5 gxf3 {[#]} 33. gxf3 ({Only move:} 33. Bd4 $1 $16) 33... Qg3 $2 {[#]} (33... Nd7 $11 {and Black has nothing to worry.} 34. Qh2 Qf6) 34. Qxg3 $1 ({Inferior is} 34. Qxe6 Ng8 $11) 34... Rxg3 35. Bf4 Rxh3+ (35... Rg7 {is a better defense.} 36. Rg2 Nd7 37. Rxg7+ (37. Bxc7 Rc8 $16) 37... Kxg7 38. Rg1+ (38. Bxc7 Rc8 $14) 38... Kf6) 36. Kg2 Rh4 37. Bxc7 {Strongly threatening Kg3.} Rg8+ 38. Bg3 Nxe4 (38... Nd7 $142 39. Rd2 Nc5) 39. Rxe4 Rxe4 40. fxe4 h4 41. Rf7+ Kh8 $2 {[#]} (41... Kh6 $18) 42. c5 $1 Rxg3+ (42... bxc5 43. b6) 43. Kh2 {Accuracy: White = 67%, Black = 24%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Theodorou, Nikolas"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2546"]
[BlackElo "2559"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,60,32,8,39,-9,-16,-14,-11,0,0,-20,-6,-20,-35,-54,-45,-41,-26,-43,-28,-144,-132,-118,-75,-95,-100,-85,-88,-85,11,-117,-111,-120,-116,-229,-209,-350,-360,-356,-339,-260,-267,-657,-493,-494,-504,-500,-496,-492,-493,-462,-455]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 {[%cal Bh2h4,Bh4h5,Bh5h6][%mdl 32] LiveBook: 99 Games. B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (6. Bg5 e6 7. f4 Qb6 8. Nb3 Nbd7 9. Qe2 Qc7 10. O-O-O b5 11. a3 Be7 12. g4 h6 13. Bh4 Rb8 14. Be1 g5 15. f5 Ne5 16. h4 Nfxg4 17. hxg5 Bxg5+ 18. Bd2 {1-0 (64) Grischuk,A (2769)-Vachier Lagrave,M (2780) Douglas 2018}) 6... e6 7. h5 $146 ({Predecessor:} 7. g4 h6 8. Bg2 Nfd7 9. Be3 Be7 10. g5 Ne5 11. gxh6 gxh6 12. Qe2 b5 13. O-O-O Bb7 14. Qh5 Qd7 15. Bh3 {1-0 (15) Baron,T (2528)-Menezes,C (2404) Karlsruhe 2017}) 7... b5 8. a3 {The position is equal.} Bb7 9. h6 g6 10. Bd3 Be7 11. Be3 Nbd7 12. O-O Ne5 13. Nf3 O-O 14. Nxe5 dxe5 15. f4 (15. Qf3 $11) 15... exf4 $17 16. Rxf4 e5 17. Rf1 Qd7 18. Bg5 Nh5 19. Be3 Nf4 (19... Rad8 $17 20. a4 b4) 20. Ne2 (20. Bxb5 $1 $11 Qxd1 21. Raxd1 (21. Rfxd1 axb5 22. Rd7 {[%mdl 64] Double Attack} Bb4 $17)) 20... Nxd3 21. Qxd3 Qe6 22. Ng3 (22. Nc3 $17) 22... Rad8 $19 23. Qe2 (23. Qc3 $142) 23... f5 24. exf5 gxf5 25. Rae1 Qg6 ({Inferior is} 25... f4 26. Bxf4 Qb6+ 27. Be3 $11) 26. Bf4 $2 {[#]} (26. Bf2 Bd6 27. Qh5) 26... Bc5+ {Black is clearly winning.} 27. Be3 Bd6 28. Rxf5 Rxf5 29. Nxf5 Qxf5 30. Rf1 Qg6 {Accuracy: White = 33%, Black = 60%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Almeida Quintana, Omar"]
[Black "Ordaz Valdes, Lisandra Teresa"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2545"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "196"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,196,11,25,-27,-23,-67,-73,-79,-59,-60,-51,-72,-56,-79,-74,-132,-139,-168,-189,-164,-181,-174,-14,-8,0,0,11,0,0,-5,16,8,22,0,0,-1,0,0,12,0,0,0,0,0,88,84,81,32,88,88,88,88,88,95,95,95,95,95,95,88,95,95,95,88,95,88,95,95,95,88,95,95,95,88,95,88,88,88,88,88,88,88,88,88,102,88,88,88,95,93,95,82,87,87,95,95,123,123,123,123,123,131,150,131,138,49,49,4,12,8,77,80,123,0,57,12,49,8,123,123,123,96,88,63,130,52,233,52,93,59,59,59,59,59,59,52,52,52,138,138,164,164,150,52,138,138,139,139,164,164,164,139,164,164,162,139,139,0,153,51,51,51,59,59,140,33,131,131,131,47,135,48,128,128,205,205,205,205,210]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 a6 8. Qc2 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} Re8 9. a3 Bd6 10. h3 Bd7 {LiveBook: 4 Games} 11. b4 $146 (11. Rd1 $142) ({Predecessor:} 11. Be2 dxc4 12. Bxc4 h6 13. O-O e5 14. Rae1 Qe7 {½-½ (53) Aronian,L (2793)-Giri,A (2771) Stavanger 2017}) 11... e5 $11 12. dxe5 Nxe5 ({Of course not} 12... Bxe5 13. cxd5 Nxd5 14. Bd3 $11) 13. cxd5 Nxf3+ 14. gxf3 c6 15. dxc6 Bxc6 16. Be2 Rc8 17. Rg1 (17. Qb3 $142) 17... Qd7 $17 18. Qd3 Qe6 $1 19. b5 axb5 20. Nxb5 Bxb5 $2 (20... Be5 $1 $19 21. Nd4 Qxh3) 21. Qxb5 $11 Be5 22. Rd1 Rc2 23. Qd3 Rec8 24. Bb4 Bc3+ 25. Bxc3 R2xc3 26. Qb5 Rxa3 27. Qxb7 Rac3 28. Rg3 Rc1 29. Kf1 Nh5 30. Rg4 Nf6 31. Rh4 g6 (31... g5 $1 $11 32. Rhd4 (32. Rh6 $2 Rxd1+ 33. Bxd1 Rc1 $19) 32... Qxh3+ 33. Kg1 Kg7) 32. Kg2 $16 R1c2 33. Qa6 {Rd6 is the strong threat.} (33. Bd3 {feels hotter.} R8c7 34. Qa8+ Rc8 35. Qa4 R2c5 36. Rd4) 33... Qxa6 (33... Nd5 $14 34. Re4 Qxa6 35. Bxa6 Nc3) 34. Bxa6 R8c6 35. Ra4 R6c5 36. f4 Rb2 37. Bc4 Kg7 38. Rd4 Rc7 39. Kf3 Rc2 40. Bb3 Rb2 41. Rdb4 Rd7 42. Bc4 Rc2 43. Ra2 Rc1 44. Rab2 Rc7 45. Ba2 Ra1 46. Bb1 Raa7 47. Ra2 Nd5 48. Rd4 Rxa2 49. Bxa2 {[%mdl 4096] Endgame KRB-KRN} Ne7 50. Rb4 Nf5 51. Bb1 Ne7 52. Rd4 Rc1 53. Bd3 Rc7 54. e4 {[%cal Be3e4,Be4e5][%mdl 32]} Ng8 55. Bc4 Nf6 56. Ke3 Ra7 57. e5 Nd7 58. Rd6 Nf8 59. Rf6 Re7 60. Kd4 Ra7 61. h4 h5 62. Rd6 (62. Kd3 $16) 62... Ra4 $14 63. Kc3 {White wants to play f5.} Ra3+ 64. Kb4 Ra7 (64... Rh3 $11 {remains equal.}) 65. Rf6 $16 Nh7 66. Rd6 (66. Rc6 $16) 66... Nf8 $14 67. Bd5 Rc7 (67... Ne6 $5) 68. Kb5 Ra7 (68... Ne6 $11) 69. Kb6 $16 Re7 70. Kc6 Ra7 71. Bc4 Re7 (71... Ra4 $14 72. Kb5 Ra7) 72. Rd8 (72. Kc5 $1 $16) 72... Ra7 $2 (72... Ne6 $14 73. Kd6 Ra7 74. Bxe6 Ra6+ 75. Kc5 Rxe6) 73. Kd6 $2 ({White has to play} 73. Rc8 $1 $18) 73... Rb7 74. Re8 Rd7+ $1 75. Kc5 Rc7+ 76. Kd4 Rd7+ 77. Ke4 Rc7 $1 {[%cal Rc7c4]} 78. Bd5 Ra7 (78... Nd7 $14) 79. Ra8 Rc7 80. Rb8 Nd7 81. Rd8 (81. Rb5 $1 $16) 81... Nf8 (81... Nb6 $14) 82. Rd6 Ra7 83. Rf6 Nh7 84. Rb6 Ra4+ 85. Ke3 Ra3+ 86. Rb3 Ra5 87. Bc4 Ra7 88. Bd5 Ra5 $1 {[%cal Ra5d5]} 89. Rd3 (89. Ke4 $16 {And now Rb7 would win.} Ra4+ 90. Ke3 Ra5) 89... Nf8 $14 90. Ke4 Nd7 91. Rc3 {Strongly threatening Rc7.} Ra7 (91... Nb6 $14 92. Bb3 Na4 93. Bxa4 Rxa4+ 94. Kf3 Kf8) 92. f5 (92. Kd4 $16) 92... gxf5+ (92... Ra4+ $14 93. Rc4 gxf5+ 94. Kxf5 Ra5) 93. Kxf5 $16 Ra5 {[#]} 94. Rd3 ({Better is} 94. Rg3+ $1 $16 Kf8 95. Rd3) 94... Nf8 ({Black should try} 94... f6 $1 $14) 95. Kg5 (95. f4 $16 Ng6 96. Kg5) 95... Ng6 (95... Nd7 $14) 96. f4 Ne7 {[#]} (96... Rc5 $16 {keeps fighting.} 97. Rd2 Ra5) 97. Be4 $1 $18 f6+ 98. Kxh5 fxe5 {Accuracy: White = 47%, Black = 40%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Bok, Benjamin"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2514"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,67,-6,0,-18,-7,-3,0,0,0,-18,0,-19,-11,-35,-28,-28,-24,-35,-24,-59,-24,-27,-24,-31,-9,-22,-24,-33,-17,-6,0,-19,0,0,0,0,0,0,15,16,8,19,12,13,10,0,12,5]} 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. c4 e6 5. cxd5 exd5 6. O-O Nf6 7. d3 Nbd7 8. h3 Bxf3 9. Bxf3 Bc5 10. Bg2 O-O {A11: English Opening: 1...c6} 11. Nc3 Re8 {LiveBook: 12 Games} 12. Bd2 $146 ({Predecessor:} 12. Kh2 d4 13. Ne4 Nxe4 14. Bxe4 Bd6 15. Kg2 a5 16. h4 Ne5 17. Bd2 Qd7 18. Kg1 {1-0 (90) Grigoryan,K (2604)-Dreev,A (2673) Warsaw 2013}) 12... Qe7 13. Rc1 d4 14. Ne4 Nxe4 15. Bxe4 Bb4 16. Bxb4 Qxb4 17. Rc2 Qd6 18. Bg2 Re5 19. Qd2 Rae8 20. b4 Nb6 {[%cal Bd7b6,Bb6a4,Ba4c3][%mdl 32]} 21. Bf3 a6 22. Kg2 h6 23. Rfc1 Na4 24. Rc4 Nc3 {[%cal Rc3e2]} 25. Qf4 {The position is equal.} Qe7 ({Reject} 25... Nxa2 $6 26. Rxd4 g5 27. Rxd6 $16) 26. Rxd4 Nxe2 27. Bxe2 Rxe2 28. a4 Rd8 29. Rcc4 Re6 30. Rxd8+ Qxd8 31. Rd4 Qe7 32. Qb8+ Kh7 33. Qc8 Rf6 34. Qg4 {Accuracy: White = 58%, Black = 33%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Rios, Cristhian Camilo"]
[Black "Vorontsov, Pavlo"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2467"]
[BlackElo "2548"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,98,12,23,9,9,0,0,0,27,-48,-46,-50,-48,-58,-30,-19,-22,-19,-10,-22,-21,-16,0,0,0,-8,15,-6,0,-12,-8,-25,-25,-26,-13,-27,-18,-37,-21,-31,-31,-31,-31,-31,-31,-37,-14,-34,-35,-36,-31,-35,-31,-33,-28,-44,-27,-31,-29,-31,-31,-94,-95,-133,-132,-179,-107,-93,-96,-107,-80,-240,-97,-95,-98,-104,-15,-23,-25,-45,-42,-57,0,-20,0,-58,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. Bg5 Nbd7 6. e3 c5 {LiveBook: 31 Games} 7. Nge2 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} Qa5 8. Bh4 $146 ({Predecessor:} 8. a3 cxd4 9. Bxf6 Nxf6 10. exd4 O-O 11. Rd1 Bxc3+ 12. Nxc3 b6 13. Bd3 Bb7 14. O-O Qh5 {0-1 (65) Lenic,L (2656)-Melkumyan,H (2660) chess.com INT 2018}) 8... cxd4 9. exd4 d5 10. cxd5 ({Better is} 10. c5 $1 $11) 10... Nxd5 $15 11. a3 O-O 12. Rc1 Be7 13. Bxe7 Nxe7 14. g3 b5 15. Bg2 Rb8 $1 16. O-O Bb7 17. Bxb7 Rxb7 18. Ne4 Nd5 19. Qb3 N7f6 20. Nc5 Rc7 21. Qd3 Qb6 22. b4 h6 23. Rc2 Ra8 24. Rb1 a6 25. Nc1 Rd8 26. N1b3 Ne7 27. Qf3 Nf5 28. Rd1 Rd5 29. Qf4 Re7 {[%cal Bc7e7,Be7e8,Be8d8,Bd8d5][%mdl 32]} 30. Re2 Re8 31. Re5 Red8 32. Rxd5 Rxd5 33. Rd2 Rd6 34. Qe5 Qc6 35. Rd3 Qa8 36. Na5 {[#]} (36. Rd1 $15) 36... Rd5 $1 $17 {[%cal Rd5e5]} 37. Qc7 Nxd4 {Hoping for ...Ne2+.} 38. Nab7 Ng4 ({Black should play} 38... e5 $19 {White must now prevent ...e4.} 39. f3 Ne8) 39. Kg2 e5 40. f3 Nf6 41. Re3 $2 {[#]} (41. Nd6 $17) 41... Qe8 (41... Ne8 $1 $19 {[%cal Re8c7] has better winning chances.} 42. Qb6 Nf5) 42. Nd6 Qf8 43. Ndb7 Ne6 (43... Nc2 $17 44. Re2 Nxa3 45. Nxa6 Nc4) 44. Nxe6 $11 fxe6 45. Qc6 Rd2+ 46. Kg1 Rd1+ 47. Kg2 Rd2+ 48. Kg1 $1 Rd1+ (48... Nd5 $15 49. Qxe6+ Kh8 50. Rxe5 Qxf3 51. Qc8+ Kh7 52. Qf5+ Qxf5 53. Rxf5 Ne3) 49. Kg2 Rd2+ {Accuracy: White = 44%, Black = 44%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.16"]
[Round "5"]
[White "Vitier Vazquez, Cristian"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "2392"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,144,68,67,85,56,56,56,62,62,93,80,94,57,80,85,81,84,140,106,124,94,117,65,59,61,78,79,77,15,152,99,120,95,194,83,95,86,106,71,167,120,168,0,0,-29,-37,-24,0,-21,-25,-37,-25,-36,-33,-36,-36,-61,-36,-90,208,209,208,60,74,46,125,0,0,0,0,-15,0,0,0,-18,0,0,0,0,0,0,26,0,8,-19,0,-17,0,0,0,0,21,21,21,6,9,0,0,0,0,0,0,0,0,-8,0,0,0,-8,-8,-29970,-29971,-29970,-29970,-29971,-12796,-29972,-29973,-29976,0,0,0,0,0,0,0,-29979,-29980,-29979,-29979]} 1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. g3 Nbd7 7. Bg2 O-O 8. Nge2 Ne8 9. O-O {LiveBook: 97 Games} Rb8 {A56: Czech Benoni} (9... g6 10. Be3 Ng7 11. Kh1 Kh8 12. Qd2 Nf6 13. f4 exf4 14. gxf4 Re8 15. Bg1 Ngh5 16. e5 dxe5 17. fxe5 Ng4 {0-1 (45) Gelfand,B (2723)-Aronian,L (2752) Monte Carlo 2006}) 10. Be3 g6 11. Bh6 Ng7 {White is slightly better.} 12. Qd2 Nf6 13. h3 $146 ({Predecessor:} 13. f3 a6 14. a4 Bd7 15. Nc1 b5 16. axb5 axb5 17. cxb5 Bxb5 18. Nxb5 Rxb5 {1-0 (32) Stolz,P (2208)-Mataix Arbona,C (1878) ICCF email 2010}) 13... Kh8 14. Rae1 Ng8 15. Be3 $1 f5 16. f4 exf4 ({Better is} 16... a6) 17. Bxf4 g5 18. Be3 Nh6 {[%cal Bg8h6,Bh6f7,Bf7e5][%mdl 32]} 19. Rf2 (19. Qc2 $16) 19... Nf7 $1 $14 20. Ref1 {[%cal Re4f5]} Ne5 21. b3 Bd7 22. Qc2 (22. Kh2 $16) 22... Qc8 (22... f4 $1 $11 {keeps the balance.} 23. gxf4 gxf4 24. Bxf4 (24. Rxf4 Rg8 $17) 24... Bh4) 23. Kh2 (23. exf5 $142 $1 Bxf5 24. Ne4) 23... Rf7 24. Bc1 Qf8 (24... f4 $16 {keeps fighting.}) 25. Nd1 (25. exf5 $1 $18 {and White stays clearly on top.} Nxf5 26. g4) 25... b5 $16 26. Ne3 {[%cal Re4f5]} bxc4 27. bxc4 {[%cal Re4f5]} Rb4 (27... f4 $16 {was worth a try.}) 28. exf5 $18 Ba4 29. Qe4 $2 (29. Qd2 $1 $18) 29... Nh5 30. Bh1 Nf6 $36 {[%mdl 2048] Black fights for an advantage.} 31. Qg2 Qh6 {Strongly threatening ...Nfg4+.} 32. Kg1 Nxc4 33. Nxc4 Rxc4 34. Bb2 Kg8 35. Nc3 g4 36. h4 Qe3 37. Nxa4 Ne4 $2 {[%mdl 8192]} (37... Nh5 $1 $17 {[%cal Rh5g3] keeps the pressure on.} 38. Kh2 Bxh4 39. gxh4 g3+ {[%mdl 64] Double Attack, Discovered Attack} 40. Kh3 Qe7) 38. Bc1 $1 {[%cal Rc1e3]} Qxg3 39. Qxg3 (39. Rf4 $18 Qxg2+ 40. Bxg2 Rxa4 41. Rxg4+ Rg7 42. Rff4) 39... Nxg3 $14 40. Nb2 Rd4 (40... Rc3 $14) 41. Rd1 (41. f6 $16 Bd8 42. Re1 Bxf6 43. Bg2) 41... Rxd1+ $11 42. Nxd1 {And now Rg2 would win.} Bxh4 43. Bg2 Nxf5 44. Re2 h5 45. Bb2 Bf6 46. Bxf6 Rxf6 47. Nf2 Nd4 48. Re3 a5 49. a4 (49. Ne4 $5 {[%cal Re4f6]} Rg6 50. Bf1 $11) 49... Rf4 50. Re4 Rf7 51. Re3 Rb7 52. Ne4 Nf5 53. Re1 Kg7 54. Rf1 Rf7 55. Ng5 Rf6 56. Ne4 Rf8 57. Ng5 {Threatens to win with Ne6+.} Nd4 {aiming for ...Rxf1+.} 58. Rxf8 Kxf8 59. Ne4 Ke7 60. Kf2 Nf5 61. Bf1 h4 {[%cal Bh5h4,Bh4h3][%mdl 32]} 62. Bd3 h3 63. Ng3 $2 {[%mdl 8192] [#]} (63. Ba6 $11) 63... Nxg3 $1 64. Kxg3 {[%mdl 4096] Endgame KB-KP} Kf6 65. Be2 Ke5 66. Bxg4 c4 67. Kxh3 {[#]} Kxd5 $2 {KB-K3P} (67... c3 $1 {mates} 68. Bd1 Kxd5 69. Bb3+ Kd4 70. Kg3 Kd3 71. Bd5 c2 72. Kg4 c1=Q 73. Kf5 Kd4 74. Be6 d5 75. Kg4 Qc2 76. Bg8 Qg6+ 77. Kf3 Qxg8 78. Kf4 Qg6 79. Kf3 Qg5 80. Kf2 Qg4 81. Ke1 Ke3 82. Kf1 d4 83. Ke1 Qg1#) 68. Kg3 Ke4 69. Kf2 Kd3 70. Be2+ Kc3 71. Bf3 $2 {[%mdl 8192]} (71. Ke3 $11) 71... Kd2 72. Be4 c3 {Accuracy: White = 41%, Black = 45%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Baryshpolets, Andrey"]
[Result "1/2-1/2"]
[ECO "C80"]
[WhiteElo "2559"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,120,22,22,3,0,30,0,22,0,0,0,0,-113,-45,-33,33,41,35,33,103,105,118,119,110,120,111,80,76,66,76,80,91,100,104,74,98,60,52,45,128,70,82,85,136,64,70,62,81,78,89,90,86,83,149,147,189,178,150,123,131,112,164,120,201,166,374,373,355,356,491,491,491,491,404,342,335,314,251,36,83,12,12,12,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 10. c3 d4 {C80: Open Ruy Lopez: Sidelines and 9 Nbd2} (10... Be7 11. Bc2 d4 12. Nb3 d3 13. Bb1 Nxb3 14. axb3 Bf5 15. Be3 O-O 16. Bd4 Qd5 17. Re1 d2 18. Re2 Bxb1 19. Rxb1 Nxd4 20. Nxd4 {1-0 (64) Caruana,F (2827)-Mamedyarov,S (2820) Batumi 2018}) 11. Bc2 d3 12. Bb1 {LiveBook: 3 Games} Qd5 13. Re1 $146 ({Predecessor:} 13. Ng5 Be7 14. Nxe6 Nxe6 15. a4 Nxe5 16. Ba2 Nc4 17. axb5 Nf4 18. Qg4 {1-0 (47) Savchenko,B (2607)-Sokolov,I (2626) Dubai 2016}) 13... O-O-O 14. Re3 Bf5 15. Nh4 g6 {aiming for ...Bh6.} 16. Nxf5 gxf5 17. b4 (17. a4 $11 {remains equal.}) 17... Rg8 (17... Nxe5 $17 18. bxc5 Bxc5) 18. Qf3 $15 f4 (18... Qxf3 $15 19. Rxf3 Nxe5 20. Rxf5 Na4 21. Rxe5 Bg7) 19. Qxd5 $14 Rxd5 20. Rh3 $1 Ne6 (20... Na4 $14) 21. Rxd3 $16 Rxe5 22. Nf3 $36 {[%mdl 2048] White has strong initiative.} Rh5 23. a4 Bg7 24. axb5 Nxb4 25. Rd1 $1 Rxb5 26. Ra3 $1 ({Much worse is} 26. Bxh7 $6 Rh8 $11) 26... Nc6 27. Bxh7 Rd8 28. Rxd8+ Kxd8 29. Be4 Rc5 30. Rxa6 Ne5 (30... Ncd4 $14 31. Ba3 (31. Nxd4 Bxd4 32. h3 Rxc3 $16) 31... Rxc3) 31. h4 (31. Ba3 $1 $16) 31... Nxf3+ 32. Bxf3 {Bc6 is the strong threat.} Bxc3 {[#]} (32... Rxc3 $142 33. Ba3 Nd4) 33. Bg4 (33. Ba3 $1 $16 Re5 34. Bc6) 33... Bd4 34. Ra8+ Kd7 {[#]} 35. Bxe6+ $1 Kxe6 36. Bxf4 {[%mdl 4096] Endgame KRB-KRB} Rc2 37. Be3 Bxe3 {KRB-KR} (37... c5 $142) 38. Re8+ Kf5 39. Rxe3 $18 {KR-KR} c5 40. Rf3+ Ke6 41. Kf1 Rc4 (41... c4 $16) 42. g3 {[%cal Bg2g3,Bg3g4][%mdl 32]} Rd4 (42... f5 $16 {was worth a try.} 43. Ke2 Ra4) 43. Ke2 f6 $2 (43... Rc4 44. Re3+ Kf6) 44. Rf4 {And now Rxd4 would win.} Rd8 45. g4 Rh8 46. h5 Ra8 47. Rf5 Ra2+ 48. Kd3 Ra3+ 49. Kc2 c4 50. f3 $2 (50. Kd2 $18) 50... Rd3 $14 51. h6 ({Better is} 51. Kb2 $16) 51... Kf7 $1 $11 {The position is equal.} 52. h7 Kg7 53. Rxf6 Kxh7 54. g5 Kg7 55. f4 {Black must now prevent Rc6.} Rf3 $1 56. Kd2 c3+ 57. Kc2 Kg8 58. Rf5 Kg7 59. Kb3 Kg6 60. Rf8 Kg7 {Accuracy: White = 59%, Black = 44%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Vorontsov, Pavlo"]
[Black "Barrientos, Sergio E"]
[Result "0-1"]
[ECO "A19"]
[WhiteElo "2548"]
[BlackElo "2499"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,54,16,11,53,65,43,0,0,0,0,0,2,-25,-34,-35,-29,-18,0,0,0,0,0,0,10,18,14,-260,-251]} 1. c4 Nf6 2. Nc3 e6 3. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c5 4. e5 Ng8 5. Nf3 Nc6 6. d4 cxd4 7. Nxd4 Nxe5 8. Ndb5 f6 9. Be3 a6 10. Nd6+ Bxd6 11. Qxd6 Ne7 {A19: English Opening: Flohr-Mikenas System with 3...c5} 12. Bb6 Nf5 13. Qb4 Nc6 14. Qc5 Qe7 (14... d6 15. Bxd8 dxc5 16. Bb6 e5 17. O-O-O Ncd4 18. Bxc5 Bd7 19. Bd3 {½-½ (30) Giri,A (2767)-Dubov,D (2648) Novi Sad 2016}) 15. O-O-O {LiveBook: 6 Games} d6 (15... Qxc5 {seems wilder.} 16. Bxc5 d6 17. Bxd6 Nxd6 18. Rxd6 Ke7) 16. Qa3 O-O {[#]} 17. Bd3 $146 ({Predecessor:} 17. f4 e5 18. c5 Be6 19. cxd6 Qf7 20. Bd3 Nfd4 21. fxe5 Nb5 {½-½ (36) Tomashevsky,E (2646)-Khairullin,I (2575) Serpukhov 2008}) 17... Ne5 18. Bxf5 {[#] Black must now prevent Bd3.} Nxc4 19. Qb3 Nxb6 20. Rhe1 {[%cal Rf5e6]} Qc7 21. Bxe6+ Kh8 22. Qb4 Bxe6 23. Rxe6 Nc4 24. b3 $1 Ne5 25. Kb2 a5 26. Qxd6 Qf7 {[#] Threatens to win with ...Ra6.} 27. f4 $2 {[%mdl 8192]} (27. Qd5 $11) 27... Ra6 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Almeida Quintana, Omar"]
[Black "Rios, Cristhian Camilo"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2545"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,79,40,36,39,40,41,20,24,21,10,15,21,34,22,32,37,-36,-14,-16,-13,-34,0,-38,0,0,0,-11,24,13,8,13,60,53,41,50,60,61,48,53,45,8,8,8,7,7,64,62,52,18,27,23,89,74,103,100,141,117,166,166,153,94,102,29,45,40,40,0,35,0,35,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Qb3 Nc6 6. a3 {LiveBook: 5 Games. E22: Nimzo-Indian: 4 Qb3} (6. Bg5 a5 7. a3 a4 8. Qc2 Bxc3+ 9. bxc3 Na5 10. Qxa4+ Bd7 11. Qb4 Nxc4 12. e3 Ra4 13. Qxb7 Nxa3 14. Rc1 {½-½ (30) Shimanov,A (2642)-Nyzhnyk,I (2610) Saint Louis 2017}) 6... Ba5 7. e3 O-O 8. Bd3 e5 $146 ({Predecessor:} 8... dxc4 9. Qxc4 Bxc3+ 10. Qxc3 Qd5 11. O-O b6 12. Re1 Ne4 13. Qc2 f5 {1-0 (57) Cheela Naga,S (1873)-Pruthu,D (2108) Saravanampatty 2017}) 9. Nxe5 Nxe5 10. dxe5 dxc4 11. Bxc4 Ng4 12. f4 Bb6 13. Ne4 (13. Bd2 $14) 13... Bf5 14. Nf2 $1 Nxf2 15. Kxf2 Be4 16. h4 Qd7 17. e6 Qd6 {[#] Threatens to win with ...Qxf4+.} 18. Kg3 $1 Rad8 19. exf7+ Kh8 $132 {[%mdl 2048] ( -> ...Qg6+). Black is not keeping still} 20. h5 Qc6 21. Qb5 $1 Bxg2 {White must now prevent ...Qf3+.} 22. Qxc6 Bxc6 23. Rh2 {Strongly threatening Rd2.} Bd5 $1 {[%cal Rd5c4]} 24. Bxd5 Rxd5 25. h6 Rxf7 26. hxg7+ Rxg7+ 27. Kf3 Rd3 (27... Rg1 $11 28. b4 Kg8) 28. Bd2 $14 Re7 {[%cal Rb6e3]} 29. Re1 Kg8 30. Rhe2 Kf7 (30... Bd4 $11 {remains equal.}) 31. Bc3 c6 32. Be5 Bc7 33. Bd4 Bb6 34. Bxb6 axb6 $18 {[%mdl 4096] Endgame [#] KRR-KRR} 35. Rh1 (35. f5 $142 $1) 35... Kf6 $16 36. Rh5 (36. a4 $16) 36... Kg6 $1 $11 {[%cal Rg6h5]} 37. Rg5+ Kf6 38. Rh5 Kg6 $1 {[%cal Rg6h5]} 39. Rg5+ Kf6 40. Rh5 {Accuracy: White = 58%, Black = 51%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Fernandez Cardoso, Alexey"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2536"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,55,38,17,9,29,2,30,-20,0,-4,25,-33,-16,-44,-39,-49,-31,-70,-39,-58,0,-8,-13,-43,187,185,243,255,242,260,252,256,258,237,596,587,558,562]} 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. e4 d6 5. Ne2 O-O 6. O-O e5 7. Nbc3 c6 8. h3 exd4 9. Nxd4 Nbd7 10. a4 a5 {LiveBook: 7 Games. B07: Pirc Defence: Miscellaneous Systems} 11. Nb3 (11. Bg5 Re8 12. Nb3 Ne5 13. Qc1 Qc7 14. Rd1 Be6 15. Nd4 Ned7 16. Bh6 Nc5 17. g4 Bxh6 18. Qxh6 {0-1 (52) Bryant,J (2363)-Gelashvili,T (2600) Las Vegas 2012}) 11... Qc7 12. Be3 Re8 {The position is equal.} 13. Nd2 $146 ({Predecessor:} 13. g4 Ne5 14. Nd2 b6 15. g5 Nh5 16. f4 Nd7 17. Qf3 Bb7 18. Nb3 Bxc3 19. bxc3 {½-½ (47) Fenil,S (2267)-Anuj,S (1920) Barcelona 2017}) 13... b6 14. Re1 Ba6 15. Qb1 ({White should try} 15. Nb3 $11) 15... Rad8 16. Qa2 Nc5 17. Rad1 h6 18. f4 Kh7 19. Bf2 {[#]} g5 ({Better is} 19... d5 $1 $15 {[%mdl 512]}) 20. fxg5 hxg5 21. Nf3 Bh6 $2 {[#]} (21... g4 $15 {stays ahead.} 22. Ng5+ Kg8) 22. e5 $1 $18 {[%cal Re5f6][%mdl 512]} g4 (22... dxe5 {is a better defense.} 23. Rxd8 Rxd8) 23. exd6 ({Not} 23. exf6 gxf3 24. Bxf3 d5 $11) 23... Rxe1+ 24. Bxe1 ({Less strong is} 24. Nxe1 Qd7 $14) 24... Rxd6 25. Rxd6 Qxd6 26. Qxf7+ Kh8 $2 (26... Bg7 {is tougher.}) 27. Nh4 {[%cal Rh4g6]} Bg7 {[#]} 28. Qxg7+ $1 {[%mdl 512] Precision: White = 36%, Black = 12%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Henriquez Villagra, Cristobal"]
[Black "Bok, Benjamin"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2514"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,50,0,0,0,-53,-49,-60,-17,-83,-70,-78,-76,-91,-98,-112,-118,-139,-126,-143,-143,-142,-129,-213,-212,-258,-268,-242,-244,-391,-388]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. Nbd2 d6 7. O-O Ne7 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} 8. h3 $146 ({Predecessor:} 8. Ba4 Ng6 9. d4 Bb6 10. Bc2 c6 11. h3 exd4 12. cxd4 d5 13. e5 Nh5 14. Re1 Nhf4 15. Nf1 {0-1 (25) Kasimdzhanov,R (2700)-Giri,A (2752) Rosmalen 2014}) 8... c6 9. Ba4 Ng6 10. d4 Bb6 11. Re1 exd4 12. cxd4 {LiveBook: 3 Games} d5 13. e5 (13. Bc2 $11) 13... Nh5 $1 $15 14. Nf1 f6 15. Bc2 (15. e6 $11 {keeps the balance.} Re8 16. g3) 15... Nhf4 $17 16. N1h2 fxe5 {[#] White must now prevent ...e4.} 17. dxe5 Bf5 18. Be3 Qd7 19. Bxf5 Qxf5 20. Qb3 Rae8 21. Bxb6 axb6 22. Qxb6 (22. Qe3 $17 {was called for.}) 22... Nxe5 $40 {[%mdl 128] Black wants a kill.} 23. Rxe5 Rxe5 24. Nxe5 Qxe5 25. Ng4 (25. Qb3 $142) 25... Qg5 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Gonzalez Vidal, Yuri"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2514"]
[BlackElo "2553"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,74,18,24,18,17,16,21,8,49,11,12,0,0,0,0,0,0,0,0,0,0,0,0,-103,-101,-141,-177,-184,-108,-115,-109,-109,-112,-102,-106,-170,-164,-182,-198,-245,-189,-187,-171,-531,-524,-578,-622,-588,-182,-165,-158,-207,-234,-222,-215,-268,-255]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. a4 a5 7. c3 d6 8. Bg5 {[%cal Bc1g5,Bg5h4,Bh4g3][%mdl 32] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} h6 (8... Qe7 9. Nbd2 Be6 10. Qb3 Rab8 11. Rad1 h6 12. Bh4 Ba7 13. Bxe6 Qxe6 14. Bxf6 Qxb3 15. Nxb3 gxf6 {1-0 (45) Adams,M (2706)-McShane,L (2669) Hull 2018}) 9. Bh4 g5 10. Bg3 Kg7 {LiveBook: 5 Games} 11. Na3 Be6 12. Bxe6 fxe6 13. Nc4 $146 ({Predecessor:} 13. Re1 g4 14. Nd2 Nh5 15. Qxg4+ Qg5 16. Qxg5+ hxg5 17. Re2 Rf6 18. Nb3 {½-½ (18) Cvak,R (2337)-Conde Poderoso,A (2347) ICCF email 2017}) 13... Ba7 14. Nfd2 Qe8 15. Nb3 h5 16. h4 Ng4 17. Qd2 (17. hxg5 h4 $15) 17... gxh4 18. Qg5+ $1 Kh7 19. Qxh4 Qg6 20. Rad1 Rg8 {And now ...Nxf2 would win.} 21. d4 (21. Qh3 $1 $11) 21... exd4 $17 22. cxd4 e5 $1 {[%cal Ra7d4]} 23. Ne3 exd4 (23... Raf8 $19 24. Nf5 exd4 25. Nbxd4 Nxd4 26. Nxd4 Nf6) 24. Nd5 Raf8 {Threatens to win with ...d3.} 25. Nf4 {[#]} Rxf4 $1 {[%mdl 512]} 26. Bxf4 Ne3 {[%csl Ge3,Gg8][%cal Rg6g2][%mdl 64] Double Attack} 27. g3 (27. Bg3 $17) 27... Nxd1 $19 ({Don't take} 27... Nxf1 28. Kxf1 Bb6 29. Nd2 $15) 28. Rxd1 Qf7 29. Bg5 Ne5 {Hoping for ...Nf3+.} 30. Nd2 d3 31. Qf4 $2 (31. Rf1 {was the crucial defense.}) 31... Qg6 32. Bh4 Rg7 33. Rf1 Qe6 $2 (33... Rf7 34. Qg5 Ng4) 34. Kg2 Qg4 35. Qf5+ Qxf5 36. exf5 {[#]} Rf7 $1 37. f6 Ng4 {Accuracy: White = 43%, Black = 75%.} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Miranda Mesa, Elier"]
[Black "Theodorou, Nikolas"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2499"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,78,22,30,11,20,14,18,0,26,21,41,20,27,8,25,0,0,0,33,25,23,17,17,22,24,22,18,0,33,27,43,20,99,94,74,73,81,85,140,139,144,135,138,136,137,149,168,36,42,43,43,40,52,6,7,6,7,7,7]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Qd3 Nf6 7. c4 {B53: Sicilian: 2...d6: Lines with Qxd4} a6 8. Bxc6 Bxc6 9. Nc3 e6 10. O-O Be7 11. Rd1 O-O {LiveBook: 7 Games} 12. b3 $146 ({Predecessor:} 12. Nd4 Bd7 13. b3 Rc8 14. Bb2 Qc7 {1-0 (51) Hou,Y (2683)-Negi,P (2664) Saint Louis 2015}) 12... Qa5 13. Bd2 Qh5 14. h3 Rfd8 15. Nd4 Be8 16. Be3 Bf8 17. Nde2 Bc6 18. Nd4 Bd7 19. Nde2 Rac8 20. Bb6 Re8 21. Rac1 $36 {[%mdl 2048] White is pushing.} Bc6 22. a4 Qg6 {[%cal Rf6e4]} 23. Nf4 Qg5 24. Nfe2 Nh5 25. Be3 Qg6 26. Nd4 f5 (26... Nf6 $11) 27. Nxc6 $16 bxc6 28. exf5 exf5 29. b4 f4 (29... Nf6 $142) 30. Qxg6 hxg6 31. Bb6 $1 Nf6 {[#]} 32. b5 $1 Nd7 {[#]} 33. a5 $1 Ne5 34. bxc6 (34. bxa6 $18 {aiming for Ne4.} Nxc4 35. Ne2) 34... Rxc6 $14 35. Nd5 Rec8 36. Nb4 Rxc4 37. Rxc4 Nxc4 {The position is equal.} 38. Nxa6 {Black should prevent Nc7.} Nxa5 $1 39. Bxa5 {Black must now prevent Nc7.} Ra8 {Accuracy: White = 54%, Black = 33%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.17"]
[Round "6"]
[White "Escobar Forero, Alder"]
[Black "Quesada Perez, Yasser"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2479"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 31,104,-8,19,-13,-12,-11,-14,-10,-9,-15,-18,-26,-8,-8,-7,-10,-6,-15,-7,-19,-6,-10,-6,-6,-5,-11,-5,-10,-15,-33,-15,-15,-15,-15,-15,-15,-15,-15,-15,-58,-15,-15,-15,-15,-15,-15,-8,-22,0,0,0,0,0,-29,-25,-27,-25,-25,-25,-25,-35,-191,-182,-144,-163,-162,-214,-1177,-996,-922,-763,-29976,-29977,-29970,-29968]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O Nxd4 9. Qxd4 Bc5 10. Bf4 d6 11. Qd3 h6 12. Rad1 e5 13. Be3 Be6 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2} 14. Bxc5 dxc5 15. Qd6 (15. Nd5 Bxd5 16. exd5 Qd6 {½-½ (16) Simacek,P (2504)-Michalik,P (2549) Czech Republic 2018}) 15... Qxd6 16. Rxd6 Ke7 {LiveBook: 5 Games} 17. Rfd1 (17. Rb6 {is interesting.} Kd7 18. Nd5 Bxd5 19. exd5 Kc7 20. Rb3) 17... Rhd8 18. Rxd8 Rxd8 19. Rxd8 Kxd8 $11 {[%mdl 4096] Endgame KBN-KBN} 20. a3 Kc7 21. f3 Ne8 $146 22. Kf2 Nd6 23. Bf1 b5 24. Ke3 Kc6 25. Nb1 c4 26. Be2 Nb7 27. f4 f6 28. Bh5 a5 29. Nc3 Nd6 30. Nd1 b4 31. axb4 axb4 32. fxe5 fxe5 33. Nf2 Nb7 34. Be8+ Kc5 35. Ba4 Kb6 36. Be8 Nc5 37. Kd2 Na6 38. Ke3 Nc7 39. Ba4 Kc5 40. b3 Nb5 41. bxc4 Bxc4 42. Bxb5 Bxb5 {KB-KN} 43. Ng4 $1 Kc4 {Hoping for ...Kc3.} 44. Nxe5+ Kc3 45. Nf3 Ba4 46. Nd4 $2 {[#]} ({White should try} 46. e5 $15) 46... Bxc2 $19 {White must now prevent ...b3.} 47. Nb5+ Kc4 48. Nd6+ Kc5 49. Ne8 $2 (49. Nb7+ Kb6 50. Nd6) 49... b3 {[#] Threatens to win with ...b2.} 50. Kd2 Kd4 51. Nxg7 Bxe4 52. Ne6+ Kc4 {[%mdl 32768] Accuracy: White = 51%, Black = 46%. . Sensor Board Error (Ke4/e5)?} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Bok, Benjamin"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2643"]
[BlackElo "2559"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,50,8,3,6,9,6,13,15,10,0,12,11,4,49,41,31,15,59,64,93,99,81,73,106,85,95,94,98,97,106,89,107,91,85,7,7,7,6]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 b6 7. Nc3 Bb7 8. d4 {LiveBook: 40 Games} dxc4 {E18: Queen's Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3)} (8... Nbd7 9. Bb2 c5 10. Ne1 cxd4 11. Qxd4 Bc5 12. Qf4 Bb4 13. Nd3 Bxc3 14. Bxc3 Qc8 15. Rfc1 dxc4 16. Bxf6 Nxf6 17. Rxc4 Qb8 18. Qxb8 Rfxb8 {½-½ (58) Ding,L (2777)-So,W (2810) Tbilisi 2017}) 9. bxc4 Ne4 10. Bb2 c5 $146 ({Predecessor:} 10... Nd7 11. Qc2 Nxc3 12. Bxc3 c5 13. Ng5 Bxg5 14. Bxb7 Rb8 15. Be4 f5 16. Bg2 cxd4 17. Bxd4 {½-½ (65) Lauritzson,P (2111)-Malesevic,N (2290) Sweden 2011}) 11. d5 Nxc3 12. Bxc3 exd5 13. Ne1 {[%cal Rc4d5]} Bf6 14. Bxf6 Qxf6 15. Nc2 Nc6 16. cxd5 Nd4 17. e4 Nxc2 18. Qxc2 Rfe8 19. Rad1 Qd6 20. f4 f6 21. Rfe1 Re7 22. Re3 Rae8 23. Rde1 c4 ({Not} 23... Bxd5 $2 24. Rd1 $18) 24. Qxc4 (24. e5 $1 $16 {[%cal Re5d6]} Qc5 25. d6) 24... Bxd5 $1 $11 25. Qd4 {[%mdl 64] [#] Pin} Qc5 {Accuracy: White = 68%, Black = 63%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Cordova, Emilio"]
[Black "Cuenca Jimenez, Jose Fernando"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2595"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,132,39,29,50,56,70,67,78,81,81,74,75,75,70,74,93,93,108,108,110,112,100,94,75,60,60,60,60,60,75,72,71,61,79,67,87,74,75,79,85,77,97,97,104,118,124,125,122,122,179,153,279,279,250,273,276,287,279,229,194,216,543,551,719,715,700,698,699,660,1020,1004,855,780,3432,2814,2408,2746,2197,2376,1546,1801,6353,6580,6231,6154,5704,5626,29973,29974,29982,29983,29983,29984,29984,29983,29983,29984,29987,29982,29982,29983,29983,29984,29983,29984,29984,29985,29985]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 O-O 5. O-O d6 6. c4 Nc6 7. Nc3 a6 8. b3 Rb8 9. d5 Na5 {E63: King's Indian: Fianchetto: Panno Variation with 7...a6} 10. Bg5 (10. Bd2 c5 11. dxc6 Nxc6 12. Qc1 Bd7 13. Bh6 b5 14. Bxg7 Kxg7 15. cxb5 axb5 16. Qb2 Kg8 17. b4 Qb6 18. Rfd1 Rfc8 {½-½ (77) Inarkiev,E (2689)-Zhao,J (2604) Riadh 2017}) 10... h6 11. Bd2 c5 12. dxc6 Nxc6 13. Rc1 Be6 14. Ne1 {LiveBook: 3 Games} Qd7 15. Nd5 {[#]} h5 $146 ({Predecessor:} 15... Kh7 16. Nd3 Bh3 17. Nb6 {0-1 (55) Gonda,L (2528)-Turner,M (2536) Telford 2018}) 16. Bc3 Bh3 17. Nxf6+ Bxf6 18. Bxf6 exf6 19. Bxh3 Qxh3 20. Ng2 Rbd8 21. Nf4 Qf5 22. Qd5 {Qxf5 is the strong threat.} Qxd5 23. Nxd5 Kg7 24. h4 Rfe8 25. e3 Ne7 26. Nc7 Rh8 27. Rfd1 Rd7 28. Nd5 Nxd5 29. Rxd5 $16 {[%mdl 4096] Endgame KRR-KRR} Rhd8 30. e4 Kf8 31. f3 Ke7 32. Kf2 Rc7 33. a4 Rc5 34. Rcd1 Rxd5 35. Rxd5 {KR-KR} Rc8 36. Ke3 Ke6 37. Kd4 Rg8 (37... b6 $16) 38. a5 f5 {[#]} (38... Rc8 $16) 39. e5 $1 $18 dxe5+ 40. Rxe5+ Kd6 41. f4 f6 42. c5+ Kd7 {[#]} 43. Rd5+ $1 Ke7 $2 (43... Kc7 {is a better chance.} 44. Rd6 g5) 44. Rd6 Rc8 45. Rb6 Rc7 46. b4 Rd7+ 47. Kc4 Rc7 48. b5 axb5+ 49. Kxb5 Rd7 {[#]} 50. Rd6 $1 {[%mdl 512]} Rc7 (50... Rxd6 51. cxd6+) 51. Kb6 Rc8 52. Rd5 Ra8 53. Rd3 Ra6+ 54. Kxb7 Rxa5 55. c6 {[%cal Bc5c6,Bc6c7][%mdl 32]} Rb5+ 56. Kc8 g5 57. Rd7+ {White mates.} Ke6 58. c7 gxf4 59. Kd8 Rc5 60. Re7+ Kd6 61. gxf4 Rc4 62. Re2 Rxc7 63. Rd2+ Kc6 64. Rc2+ Kd5 65. Rxc7 Ke4 66. Rc4+ Kd5 {Accuracy: White = 96%, Black = 42%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Baryshpolets, Andrey"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2578"]
[BlackElo "2536"]
[Annotator "ChessBase"]
[PlyCount "134"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} g6 {[%emt 0:01:09]} 2. c4 {[%emt 0:02:29]} Bg7 {[%emt 0:00:48]} 3. Nc3 {[%emt 0:04:37]} c5 {[%emt 0:02:31]} 4. d5 {[%emt 0:00:41]} Nf6 {[%emt 0:02:19]} 5. e4 {[%emt 0:01:09]} d6 {[%emt 0:00:05]} 6. h3 {[%emt 0:00:59]} Na6 {[%emt 0:00:32]} 7. Bd3 {[%emt 0:03:00]} O-O {[%emt 0:01:43]} 8. Bg5 {[%emt 0:03:27]} Nc7 {[%emt 0:04:38]} 9. a4 {[%emt 0:05:58]} e5 {[%emt 0:03:21]} 10. Qd2 {[%emt 0:03:44]} Na6 {[%emt 0:00:43]} 11. Nge2 {[%emt 0:02:32]} Nb4 {[%emt 0:00:09]} 12. Bb1 {[%emt 0:00:37]} Qd7 {[%emt 0:05:32]} 13. g4 {[%emt 0:03:31]} Ne8 {[%emt 0:05:14]} 14. Ng3 {[%emt 0:03:44]} Bf6 {[%emt 0:01:16]} 15. Bh6 {[%emt 0:04:25]} Bg7 {[%emt 0:02:43]} 16. Be3 {[%emt 0:03:53]} Qe7 {[%emt 0:01:34]} 17. Ra3 {[%emt 0:01:28]} Bd7 {[%emt 0:01:03]} 18. Nce2 {[%emt 0:03:53]} a6 {[%emt 0:02:26]} 19. Kf1 {[%emt 0:05:19]} b6 {[%emt 0:00:41]} 20. Kg2 {[%emt 0:00:06]} Qd8 {[%emt 0:02:19]} 21. Kh2 {[%emt 0:01:10]} b5 {[%emt 0:00:56]} 22. b3 {[%emt 0:00:44]} bxa4 {[%emt 0:02:14]} 23. bxa4 {[%emt 0:00:08]} Rb8 {[%emt 0:00:13]} 24. a5 {[%emt 0:02:19]} Kh8 {[%emt 0:02:03]} 25. Rf1 {[%emt 0:00:47]} Qe7 {[%emt 0:03:09]} 26. Ng1 {[%emt 0:00:48]} Bc8 {[%emt 0:01:25]} 27. Nf3 {[%emt 0:04:05]} Nf6 {[%emt 0:02:34]} 28. Bg5 {[%emt 0:01:06]} Qd7 {[%emt 0:02:44]} 29. Rg1 {[%emt 0:03:43]} Ng8 {[%emt 0:02:04]} 30. Rf1 {[%emt 0:02:09]} Qe8 {[%emt 0:01:29]} 31. Be3 {[%emt 0:03:21]} Qe7 {[%emt 0:00:28]} 32. Ng5 {[%emt 0:01:31]} Nf6 {[%emt 0:02:18]} 33. Qc1 {[%emt 0:01:29]} Kg8 {[%emt 0:01:18]} 34. Kg2 {[%emt 0:01:08]} Rb7 {[%emt 0:01:27]} 35. Bd2 {[%emt 0:01:01]} Bd7 {[%emt 0:01:06]} 36. f4 {[%emt 0:01:46]} exf4 {[%emt 0:03:20]} 37. Bxf4 {[%emt 0:00:21]} Rfb8 {[%emt 0:03:12]} 38. Qe3 {[%emt 0:08:29]} Be8 {[%emt 0:01:48]} 39. Nf3 {[%emt 0:04:21]} Nd7 {[%emt 0:00:22]} 40. Bg5 {[%emt 0:01:21]} f6 {[%emt 0:07:27]} 41. Bf4 {[%emt 0:00:59]} Bf7 {[%emt 0:03:09]} 42. Ne2 {[%emt 0:01:20]} Ne5 {[%emt 0:02:30]} 43. Bxe5 {[%emt 0:02:20]} fxe5 {[%emt 0:01:31]} 44. Ra1 {[%emt 0:00:45]} Be8 {[%emt 0:00:55]} 45. g5 {[%emt 0:01:33]} Bd7 {[%emt 0:00:36]} 46. Nh2 {[%emt 0:01:11]} Rf8 {[%emt 0:00:44]} 47. Rxf8+ {[%emt 0:00:09]} Bxf8 {[%emt 0:01:57]} 48. h4 {[%emt 0:00:37]} Bc8 {[%emt 0:00:33]} 49. Nc3 {[%emt 0:00:37]} Qd8 {[%emt 0:01:27]} 50. Nd1 {[%emt 0:00:49]} Rf7 {[%emt 0:00:21]} 51. Nf2 {[%emt 0:00:34]} Rf4 {[%emt 0:00:23]} 52. Qg3 {[%emt 0:01:00]} h5 {[%emt 0:04:00]} 53. Ra3 {[%emt 0:00:44]} Be7 {[%emt 0:01:14]} 54. Nf3 {[%emt 0:00:46]} Bd7 {[%emt 0:01:27]} 55. Ng1 {[%emt 0:01:10]} Qb8 {[%emt 0:00:38]} 56. Ne2 {[%emt 0:00:33]} Rf7 {[%emt 0:00:21]} 57. Bd3 {[%emt 0:01:05]} Bd8 {[%emt 0:00:40]} 58. Qe3 {[%emt 0:01:06]} Bc7 {[%emt 0:00:52]} 59. Nc1 {[%emt 0:00:57]} Qd8 {[%emt 0:00:59]} 60. Nb3 {[%emt 0:00:10]} Rf4 {[%emt 0:00:33]} 61. Kg3 {[%emt 0:00:31]} Qf8 {[%emt 0:01:31]} 62. Nc1 {[%emt 0:01:24]} Bg4 {[%emt 0:00:38]} 63. Qd2 {[%emt 0:01:37]} Rf3+ {[%emt 0:01:44]} 64. Kg2 {[%emt 0:00:03]} Bc8 {[%emt 0:01:45]} 65. Rb3 {[%emt 0:01:01]} Bxa5 {[%emt 0:00:39]} 66. Bf1 {[%emt 0:00:08]} Rf4 {[%emt 0:01:22]} 67. Kg3 {[%emt 0:01:30]} Nd3 {[%emt 0:00:49]} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Gonzalez Vidal, Yuri"]
[Black "Quesada Perez, Yasser"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2553"]
[BlackElo "2528"]
[Annotator "ChessBase"]
[PlyCount "74"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:12]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:24]} e6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:20]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:06]} Nc6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:09]} Qc7 {[%emt 0:00:00]} 6. Be3 {[%emt 0:00:12]} Nf6 {[%emt 0:00:04]} 7. f4 {[%emt 0:01:49]} Bb4 {[%emt 0:00:07]} 8. Ndb5 {[%emt 0:00:19]} Qa5 {[%emt 0:00:06]} 9. e5 {[%emt 0:00:14]} Nd5 {[%emt 0:00:05]} 10. Bd2 {[%emt 0:01:15]} Nxc3 {[%emt 0:00:07]} 11. Bxc3 {[%emt 0:02:33]} Bxc3+ {[%emt 0:00:08]} 12. Nxc3 {[%emt 0:01:57]} O-O {[%emt 0:00:08]} 13. Qd2 {[%emt 0:01:01]} Rb8 {[%emt 0:00:06]} 14. Bd3 {[%emt 0:14:24]} b5 {[%emt 0:00:07]} 15. O-O {[%emt 0:01:23]} Ba6 {[%emt 0:03:03]} 16. Rf3 {[%emt 0:07:13]} d5 {[%emt 0:11:11]} 17. exd6 {[%emt 0:19:21]} Rfd8 {[%emt 0:09:34]} 18. Qf2 {[%emt 0:12:38]} f5 {[%emt 0:07:02]} 19. Qh4 {[%emt 0:05:00]} b4 {[%emt 0:06:50]} 20. Rh3 {[%emt 0:02:50]} h6 {[%emt 0:02:24]} 21. Ne2 {[%emt 0:09:58]} Bxd3 {[%emt 0:06:32]} 22. Rxd3 {[%emt 0:00:23]} Rxd6 {[%emt 0:02:05]} 23. Rxd6 {[%emt 0:01:03]} Qc5+ {[%emt 0:00:05]} 24. Qf2 {[%emt 0:00:22]} Qxd6 {[%emt 0:00:05]} 25. Qe3 {[%emt 0:00:58]} Rb5 {[%emt 0:03:59]} 26. a3 {[%emt 0:04:22]} bxa3 {[%emt 0:03:35]} 27. bxa3 {[%emt 0:01:59]} e5 {[%emt 0:02:07]} 28. h3 {[%emt 0:07:17]} Qc5 {[%emt 0:12:35]} 29. Qxc5 {[%emt 0:01:25]} Rxc5 {[%emt 0:00:04]} 30. fxe5 {[%emt 0:00:06]} Rxc2 {[%emt 0:01:59]} 31. Nf4 {[%emt 0:02:23]} Nxe5 {[%emt 0:01:39]} 32. Rb1 {[%emt 0:00:08]} Rd2 {[%emt 0:12:10]} 33. Rb8+ {[%emt 0:00:51]} Kf7 {[%emt 0:00:36]} 34. Rb5 {[%emt 0:00:09]} Nc4 {[%emt 0:03:44]} 35. Rxf5+ {[%emt 0:00:18]} Kg8 {[%emt 0:00:04]} 36. Rc5 {[%emt 0:00:47]} Rd4 {[%emt 0:02:49]} 37. Rc8+ {[%emt 0:00:45]} Kh7 {[%emt 0:01:26]} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Theodorou, Nikolas"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2546"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "161"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,161,0,12,8,21,17,20,-28,75,73,83,71,74,82,78,79,83,82,78,86,81,87,83,60,53,64,62,0,0,0,0,0,0,-12,-12,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,25,24,22,8,8,8,11,8,14,4,16,10,9,8,10,0,0,0,0,0,0,-8,-8,-46,-47,-56,-8,-56,-8,-8,-8,-8,-8,-16,-16,-16,-16,-16,-16,-16,-16,-16,-16,-16,-16,-16,-16,-16,-8,-8]} 1. d4 e6 2. c4 d5 3. g3 Nf6 {[%cal Bg8f6,Bf6d5,Bd5b4,Bb4d3][%mdl 32]} 4. Bg2 Bb4+ 5. Nc3 O-O 6. Nf3 dxc4 7. O-O Nc6 8. Qa4 {E20: Nimzo-Indian: 4 g3 and 4 f3} Nd5 9. Qc2 Be7 10. Rd1 Rb8 (10... Bd7 11. e4 Ncb4 12. Qd2 Nb6 13. Ne5 Nc6 14. Nxc6 Bxc6 15. Qc2 f5 {1-0 (62) Caruana,F (2822)-So,W (2780) Saint Louis 2018}) 11. e4 Ndb4 12. Qe2 Nd3 {LiveBook: 4 Games} 13. Be3 $1 b5 14. b3 Ba6 15. Rab1 $146 ({Predecessor:} 15. d5 Bf6 16. dxc6 Bxc3 {½-½ (38) Spasov,S (2317)-Talos,D (2284) ICCF email 2007}) 15... b4 (15... Qd6 $11 {keeps the balance.}) 16. Na4 $16 cxb3 17. axb3 {Hoping for Qc2.} Nc5 {[#]} 18. Qa2 $1 ({But not} 18. Qc2 Nxa4 19. bxa4 Na5 $11) 18... Nxa4 ({Avoid the trap} 18... Nxe4 $2 19. Ne5 $18) 19. Qxa4 Bb5 20. Qa2 {[%mdl 1024] White has strong compensation.} Bd6 21. Rbc1 Qe8 22. e5 Be7 23. d5 exd5 24. Rxd5 a6 25. Nd2 ({Better is} 25. Nh4 $14 Bxh4 26. Rxb5 (26. gxh4 Nxe5 27. Qc2 c6 $17) 26... axb5 27. Bxc6 Qxe5 28. gxh4) 25... Nd8 $1 $11 26. Ne4 Ne6 27. f4 {Threatens to win with f5.} Rd8 28. Qd2 Rxd5 29. Qxd5 Qd8 30. Qxd8 Rxd8 31. f5 Nd4 $1 {[%cal Rd4e2]} 32. Bxd4 Rxd4 33. Rxc7 Rd7 34. Rc8+ Rd8 35. Rc7 Rd7 36. Rc1 h6 37. Bf1 Bxf1 38. Kxf1 {[%mdl 4096] Endgame KRB-KRN} Rd5 39. Rc8+ Kh7 $1 40. f6 gxf6 41. exf6 Rf5+ 42. Ke2 Bxf6 43. Rc6 Be7 44. Rxa6 Kg7 45. Ra7 Kf8 46. Ra8+ Kg7 47. Ra7 Kf8 48. Rc7 Rh5 49. h4 Re5 50. Kd3 f5 51. Nd2 Rd5+ 52. Ke2 Bd6 53. Rd7 Ke8 54. Rg7 Be5 55. Rg6 Kf7 56. h5 Bg7 57. Nc4 Bf8 58. Rb6 Kg7 59. Re6 Kf7 60. Rg6 Ke7 61. Ke3 f4+ {[%mdl 64] [#] Discovered Attack} 62. gxf4 {Strongly threatening Ne5.} Rxh5 63. Ke4 Rh3 64. Na5 Kf7 65. Rc6 Rc3 66. Rb6 h5 67. Rb7+ Kg8 68. Rb5 h4 69. Rh5 h3 70. f5 Bd6 {...h2 is the strong threat.} 71. Nc4 {The position is equal.} Bc7 72. Ne3 h2 73. Nd5 Rc1 {White must now prevent ...Bd6.} 74. Nxc7 h1=Q+ 75. Rxh1 Rxh1 {KR-KN} 76. Na6 Rh3 77. Nc5 Rc3 78. Kd5 Kf7 79. Kc6 Kf6 80. Kb5 Kxf5 81. Kxb4 {Accuracy: White = 62%, Black = 71%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Miranda Mesa, Elier"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2510"]
[BlackElo "2499"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,51,25,44,37,34,30,43,59,68,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Qc2 b5 6. b3 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3} g6 (6... Bg4 7. Nge2 Bh5 8. Nf4 Bg6 9. Nxg6 hxg6 10. Be2 Nbd7 11. h3 e6 12. O-O Be7 13. a3 O-O 14. Bb2 Qc7 15. Rac1 {0-1 (45) Bluebaum,M (2643)-Laznicka,V (2654) Germany 2018}) 7. Bd3 Bg7 8. Nf3 O-O 9. O-O Nbd7 10. Bb2 Bb7 {LiveBook: 33 Games} 11. Rfd1 Qb8 12. Rab1 (12. Rac1 {with more complications.} Re8 13. h3 e6 14. c5 e5 15. dxe5 Nxe5 16. Nxe5 Rxe5 17. Ne2) 12... dxc4 $146 ({Predecessor:} 12... Rc8 13. Qe2 Ne8 14. e4 e6 15. c5 dxe4 16. Nxe4 {1-0 (59) Turova,I (2415)-Lazo,X (2001) Kishinev 2005}) 13. bxc4 c5 14. dxc5 (14. d5 $1 $14) 14... Nxc5 $11 {The position is equal.} 15. cxb5 Nxd3 16. Qxd3 axb5 17. Qxb5 Be4 18. Qxb8 Rfxb8 19. Nxe4 Nxe4 20. Bxg7 Rxb1 21. Rxb1 {[#] Hoping for Be5.} Kxg7 {KRN-KRN} 22. Ra1 Ra3 23. Kf1 Nc3 24. Rc1 Nxa2 25. Rc7 Kf8 26. Rc4 {Accuracy: White = 69%, Black = 86%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Barrientos, Sergio E"]
[Black "Almeida Quintana, Omar"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2499"]
[BlackElo "2545"]
[Annotator "ChessBase"]
[PlyCount "96"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:04:30]} d6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:05]} Nf6 {[%emt 0:00:00]} 3. Bd3 {[%emt 0:00:04]} g6 {[%emt 0:01:53]} 4. Nf3 {[%emt 0:00:08]} Bg7 {[%emt 0:00:05]} 5. O-O {[%emt 0:00:05]} O-O {[%emt 0:00:04]} 6. c3 {[%emt 0:00:05]} Nbd7 {[%emt 0:03:36]} 7. Re1 {[%emt 0:00:07]} e5 {[%emt 0:00:04]} 8. Nbd2 {[%emt 0:03:00]} b6 {[%emt 0:01:51]} 9. Nf1 {[%emt 0:04:24]} Bb7 {[%emt 0:00:21]} 10. Ng3 {[%emt 0:00:08]} Re8 {[%emt 0:00:49]} 11. d5 {[%emt 0:05:20]} c6 {[%emt 0:01:01]} 12. c4 {[%emt 0:01:03]} Nc5 {[%emt 0:03:08]} 13. Bc2 {[%emt 0:16:14]} a5 {[%emt 0:00:20]} 14. Be3 {[%emt 0:01:44]} cxd5 {[%emt 0:04:35]} 15. cxd5 {[%emt 0:00:12]} Nfd7 {[%emt 0:02:16]} 16. Qd2 {[%emt 0:00:08]} b5 {[%emt 0:00:22]} 17. h4 {[%emt 0:02:34]} Nf6 {[%emt 0:03:29]} 18. Bxc5 {[%emt 0:06:09]} dxc5 {[%emt 0:00:19]} 19. a4 {[%emt 0:00:01]} b4 {[%emt 0:00:10]} 20. Bd3 {[%emt 0:00:08]} Qe7 {[%emt 0:04:04]} 21. Bb5 {[%emt 0:08:21]} Red8 {[%emt 0:09:36]} 22. Qg5 {[%emt 0:02:53]} h6 {[%emt 0:00:34]} 23. Qe3 {[%emt 0:02:01]} Ng4 {[%emt 0:04:44]} 24. Qe2 {[%emt 0:01:46]} h5 {[%emt 0:01:00]} 25. Nf1 {[%emt 0:00:53]} f5 {[%emt 0:05:11]} 26. exf5 {[%emt 0:08:49]} gxf5 {[%emt 0:01:28]} 27. Ng3 {[%emt 0:00:12]} Rf8 {[%emt 0:09:43]} 28. Bc4 {[%emt 0:05:11]} Qd6 {[%emt 0:01:30]} 29. Ng5 {[%emt 0:07:31]} e4 {[%emt 0:00:47]} 30. Ne6 {[%emt 0:13:07]} Bd4 {[%emt 0:03:54]} 31. Nxd4 {[%emt 0:00:11]} cxd4 {[%emt 0:00:03]} 32. Qf1 {[%emt 0:00:21]} d3 {[%emt 0:02:44]} 33. Rad1 {[%emt 0:00:14]} Rae8 {[%emt 0:01:07]} 34. Bxd3 {[%emt 0:00:56]} exd3 {[%emt 0:00:23]} 35. Rxe8 {[%emt 0:00:09]} Rxe8 {[%emt 0:00:07]} 36. Qxd3 {[%emt 0:00:04]} Re5 {[%emt 0:12:07]} 37. Qc4 {[%emt 0:04:05]} Nf6 {[%emt 0:03:47]} 38. Nf1 {[%emt 0:02:29]} Ba6 {[%emt 0:03:18]} 39. Qc6 {[%emt 0:03:11]} Qxc6 {[%emt 0:01:19]} 40. dxc6 {[%emt 0:00:09]} Bxf1 {[%emt 0:01:24]} 41. c7 {[%emt 0:01:08]} Ba6 {[%emt 0:00:29]} 42. Rd8+ {[%emt 0:00:37]} Re8 {[%emt 0:01:55]} 43. Rd6 {[%emt 0:00:30]} Ng4 {[%emt 0:00:32]} 44. g3 {[%emt 0:00:30]} Bb7 {[%emt 0:03:36]} 45. f3 {[%emt 0:00:02]} Re1+ {[%emt 0:00:45]} 46. Kg2 {[%emt 0:00:01]} Rc1 {[%emt 0:00:10]} 47. Rd7 {[%emt 0:01:14]} Rc2+ {[%emt 0:00:16]} 48. Kf1 {[%emt 0:00:06]} Nf6 {[%emt 0:02:02]} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "7"]
[White "Rios, Cristhian Camilo"]
[Black "Matsenko, Sergei"]
[Result "1-0"]
[ECO "E39"]
[WhiteElo "2467"]
[BlackElo "2524"]
[Annotator "ChessBase"]
[PlyCount "69"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:01:43]} Nf6 {[%emt 0:06:08]} 2. c4 {[%emt 0:00:19]} e6 {[%emt 0:00:05]} 3. Nc3 {[%emt 0:00:28]} Bb4 {[%emt 0:00:06]} 4. Qc2 {[%emt 0:00:30]} c5 {[%emt 0:00:06]} 5. dxc5 {[%emt 0:00:23]} O-O {[%emt 0:00:04]} 6. a3 {[%emt 0:00:18]} Bxc5 {[%emt 0:00:16]} 7. Nf3 {[%emt 0:00:23]} a6 {[%emt 0:00:50]} 8. Bg5 {[%emt 0:01:06]} Be7 {[%emt 0:03:53]} 9. e4 {[%emt 0:06:32]} d6 {[%emt 0:02:39]} 10. Be2 {[%emt 0:01:12]} Qc7 {[%emt 0:01:09]} 11. O-O {[%emt 0:04:20]} b6 {[%emt 0:00:13]} 12. Rfd1 {[%emt 0:04:25]} Bb7 {[%emt 0:00:34]} 13. b4 {[%emt 0:07:17]} Nbd7 {[%emt 0:01:46]} 14. Rac1 {[%emt 0:00:08]} Rac8 {[%emt 0:00:27]} 15. Qd3 {[%emt 0:08:57]} Rfd8 {[%emt 0:02:30]} 16. Nd2 {[%emt 0:01:44]} h6 {[%emt 0:19:28]} 17. Bf4 {[%emt 0:03:12]} Ne5 {[%emt 0:01:40]} 18. Qg3 {[%emt 0:00:08]} Ng6 {[%emt 0:02:29]} 19. Be3 {[%emt 0:00:22]} Nd7 {[%emt 0:00:34]} 20. Nb3 {[%emt 0:08:34]} Nde5 {[%emt 0:12:10]} 21. f4 {[%emt 0:18:10]} Nxc4 {[%emt 0:00:20]} 22. Bxc4 {[%emt 0:00:07]} Qxc4 {[%emt 0:00:03]} 23. Nd4 {[%emt 0:00:07]} Qxc3 {[%emt 0:01:51]} 24. Rxc3 {[%emt 0:00:09]} Rxc3 {[%emt 0:00:01]} 25. f5 {[%emt 0:01:09]} exf5 {[%emt 0:08:33]} 26. Nxf5 {[%emt 0:03:02]} Re8 {[%emt 0:07:47]} 27. Qf2 {[%emt 0:12:34]} Bf8 {[%emt 0:08:52]} 28. Rf1 {[%emt 0:00:16]} Rxe4 {[%emt 0:09:52]} 29. Nxh6+ {[%emt 0:00:44]} Kh7 {[%emt 0:00:04]} 30. Nxf7 {[%emt 0:07:00]} Rcxe3 {[%emt 0:03:14]} 31. Ng5+ {[%emt 0:00:35]} Kh6 {[%emt 0:00:00]} 32. Nxe4 {[%emt 0:01:08]} Rxe4 {[%emt 0:00:01]} 33. Qxb6 {[%emt 0:00:08]} Re7 {[%emt 0:06:48]} 34. Qxd6 {[%emt 0:00:26]} Re8 {[%emt 0:01:51]} 35. Qd7 {[%emt 0:00:14]} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2559"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,53,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nc6 5. O-O e6 6. Nc3 Nge7 7. e3 O-O 8. d4 cxd4 9. Nxd4 d5 10. cxd5 Nxd4 11. exd4 Nxd5 12. Nxd5 exd5 13. Be3 Be6 14. Qd2 {[#] LiveBook: 31 Games. The position is equal.} Qd6 $146 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} ({Predecessor:} 14... Qb6 15. Rfc1 Rfc8 16. Rc5 Bf8 17. Rxc8 Rxc8 18. Rc1 Rc6 19. Rxc6 {½-½ (19) Shengelia,D (2570)-Dragnev,V (2515) Stara Lubovna 2017}) 15. Rac1 Rfc8 16. Rxc8+ Rxc8 17. Rc1 Rxc1+ 18. Qxc1 h5 19. h4 Qb6 20. Qc3 Bf8 21. a3 Bd6 22. Bf3 (22. Bg5 {with more complications.} Kg7 23. Bf3 a5 24. Kg2 Qc7 25. Qd2) 22... Qc7 23. Qxc7 Bxc7 24. Kf1 Kf8 25. Ke1 Ke7 26. Kd2 Kd7 27. Kc3 {Accuracy: White = 94%, Black = 100%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Almeida Quintana, Omar"]
[Black "Bok, Benjamin"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2545"]
[BlackElo "2643"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,50,-14,39,0,64,44,52,62,42,45,58,46,58,0,20,31,32,0,0,0,46,46,46,48,64,73,56]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O dxc4 9. Bxc4 b5 10. Be2 Bb7 11. Rd1 Qc7 12. a3 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (12. Bd2 a5 13. Rac1 Rac8 14. Ne4 Nxe4 15. Qxe4 c5 16. Qh4 Bxf3 17. Bxf3 b4 18. dxc5 Nxc5 19. a3 Qd8 20. Qxd8 Rcxd8 21. axb4 {½-½ (66) Bocharov,D (2594)-Vitiugov,N (2740) Sochi 2018}) 12... e5 13. h3 Rfe8 {LiveBook: 3 Games} (13... a6 $11) 14. b4 {White is slightly better.} a5 ({Black should play} 14... exd4 $11 15. Nxd4 a6) 15. Rb1 axb4 16. axb4 exd4 17. Nxd4 $146 ({Predecessor:} 17. Rxd4 Nf8 18. Bb2 Qe7 19. Ba1 Bxb4 20. Rdxb4 Rxa1 21. Rxa1 Qxb4 {0-1 (27) Cabrera Pando,R (2152)-Spata,G (2321) Buenos Aires 2018}) 17... g6 18. Qb3 Nb6 19. Bf3 (19. Bb2 $14) 19... Be5 20. Qc2 Rab8 21. Bd2 Nc4 22. Rbc1 Qb6 23. Na4 bxa4 24. Qxc4 {[%cal Rd4c6]} Nd5 25. Be1 {[%cal Rd4c6]} Rec8 {Accuracy: White = 58%, Black = 53%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Quesada Perez, Yasser"]
[Black "Cordova, Emilio"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2528"]
[BlackElo "2595"]
[Annotator "ChessBase"]
[PlyCount "50"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:06:34]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:10]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:07]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:01:12]} 5. Nc3 {[%emt 0:00:00]} e5 {[%emt 0:01:33]} 6. Ndb5 {[%emt 0:00:12]} d6 {[%emt 0:00:07]} 7. Bg5 {[%emt 0:00:34]} a6 {[%emt 0:00:08]} 8. Na3 {[%emt 0:00:03]} b5 {[%emt 0:01:16]} 9. Nd5 {[%emt 0:00:20]} Be7 {[%emt 0:00:07]} 10. Bxf6 {[%emt 0:00:15]} Bxf6 {[%emt 0:00:06]} 11. c4 {[%emt 0:00:20]} b4 {[%emt 0:05:29]} 12. Nc2 {[%emt 0:00:17]} a5 {[%emt 0:00:44]} 13. g3 {[%emt 0:07:13]} Bg5 {[%emt 0:02:36]} 14. Bg2 {[%emt 0:03:28]} O-O {[%emt 0:00:16]} 15. O-O {[%emt 0:00:05]} Be6 {[%emt 0:00:08]} 16. Qd3 {[%emt 0:05:53]} Bxd5 {[%emt 0:16:42]} 17. cxd5 {[%emt 0:09:29]} Nb8 {[%emt 0:00:25]} 18. a3 {[%emt 0:00:15]} Na6 {[%emt 0:00:20]} 19. axb4 {[%emt 0:00:10]} Nxb4 {[%emt 0:00:06]} 20. Nxb4 {[%emt 0:00:14]} axb4 {[%emt 0:00:05]} 21. h4 {[%emt 0:00:37]} Bh6 {[%emt 0:00:41]} 22. Qc4 {[%emt 0:03:46]} Rc8 {[%emt 0:11:59]} 23. Qxb4 {[%emt 0:04:39]} Rb8 {[%emt 0:00:03]} 24. Qc3 {[%emt 0:00:32]} Qb6 {[%emt 0:00:06]} 25. Bh3 {[%emt 0:00:53]} Qxb2 {[%emt 0:00:10]} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Baryshpolets, Andrey"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2482"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,103,0,0,-9,0,0,0,0,0,0,30,0,0,0,36,46,49,31,39,25,35,52,41,39,29,17,32,37,31,6,15,13,10,16,9,5,15,15,16,16,16,16,19,19,19,19,19,19,19,19,19,19,19,19,21,19,19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. O-O g5 9. dxc5 Ndxe5 {C06: French Tarrasch: 3...Nf6 4 e5 Nfd7 5 Bd3 main lines} 10. Bb5 (10. Bc2 Ng6 11. b4 O-O 12. Re1 f5 13. Nb3 g4 14. b5 gxf3 15. bxc6 bxc6 16. Qxf3 e5 17. Bh6 {1-0 (51) Mista,A (2595)-Bartel,M (2604) Warsaw 2018}) 10... Ng6 {LiveBook: 9 Games} 11. c4 a6 12. Ba4 $146 ({Predecessor:} 12. Bxc6+ bxc6 13. cxd5 cxd5 14. b4 e5 15. Bb2 f6 16. Re1 g4 17. Nxe5 fxe5 18. Bxe5 {0-1 (58) De Seroux,C (2175)-Di Benedetto,D (2321) Batumi 2018}) 12... O-O 13. cxd5 Qxd5 14. Bb3 Qd8 15. Ne4 {[%cal Rc1g5]} g4 16. Nfd2 {[%cal Bf3d2,Bd2c4,Bc4d6][%mdl 32]} e5 17. Nc4 Qxd1 $1 18. Rxd1 Be6 19. Bh6 Rfd8 20. Ncd6 Bxb3 21. axb3 Nd4 22. Be3 f5 23. Bxd4 fxe4 24. Be3 Bxd6 $1 {The position is equal.} 25. cxd6 Kf7 26. Bb6 Rd7 27. Bc7 Nf4 28. Re1 Ne6 29. Rxe4 Nxc7 30. dxc7 Rxc7 31. Rxg4 $11 {[%mdl 4096] Endgame KRR-KRR} Rac8 {[#] ( -> ...Rc1+)} 32. g3 Rc1+ 33. Rxc1 Rxc1+ {KR-KR} 34. Kg2 Rc2 35. Rc4 Rxb2 36. Rc7+ {[%mdl 64] [#] Double Attack} Kf6 37. Rxb7 e4 $1 {[%cal Be5e4,Be4e3][%mdl 32]} 38. Rxh7 e3 $1 {[%cal Re3e2] And now ...e2 would win.} 39. Kf1 Rxf2+ 40. Ke1 Ke5 41. Rh4 a5 42. h3 Rh2 43. Rg4 Kf5 44. Rf4+ Ke5 45. h4 Rh3 46. Rg4 {Black must now prevent Ke2.} Kf5 $1 {[%cal Rf5g4]} 47. Rf4+ Ke5 48. h5 Rxh5 49. Ke2 Rh2+ 50. Kf3 Rf2+ 51. Kxe3 Rb2 52. Re4+ {Accuracy: White = 74%, Black = 86%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Escobar Forero, Alder"]
[Black "Theodorou, Nikolas"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2479"]
[BlackElo "2546"]
[Annotator "ChessBase"]
[PlyCount "146"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:18]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:01:11]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:04]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:08]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:05]} a6 {[%emt 0:00:00]} 6. Bg5 {[%emt 0:00:43]} Nbd7 {[%emt 0:00:00]} 7. Bc4 {[%emt 0:00:22]} Qb6 {[%emt 0:00:47]} 8. O-O {[%emt 0:00:09]} Qc5 {[%emt 0:00:23]} 9. Bd5 {[%emt 0:00:06]} e6 {[%emt 0:00:04]} 10. Re1 {[%emt 0:00:02]} Ne5 {[%emt 0:00:04]} 11. Na4 {[%emt 0:16:05]} Qa5 {[%emt 0:11:52]} 12. Bb3 {[%emt 0:02:10]} Be7 {[%emt 0:18:29]} 13. Qe2 {[%emt 0:28:08]} Bd7 {[%emt 0:04:33]} 14. Nc3 {[%emt 0:02:11]} O-O {[%emt 0:01:54]} 15. Rad1 {[%emt 0:01:37]} Nc6 {[%emt 0:09:55]} 16. Nf3 {[%emt 0:01:48]} Rfd8 {[%emt 0:04:07]} 17. Nb1 {[%emt 0:20:33]} h6 {[%emt 0:02:12]} 18. Bf4 {[%emt 0:00:36]} Ne5 {[%emt 0:00:54]} 19. Nbd2 {[%emt 0:01:10]} Qc7 {[%emt 0:00:16]} 20. c4 {[%emt 0:02:18]} a5 {[%emt 0:08:28]} 21. a3 {[%emt 0:02:39]} a4 {[%emt 0:00:37]} 22. Ba2 {[%emt 0:00:11]} Ng6 {[%emt 0:02:12]} 23. Be3 {[%emt 0:00:33]} Ng4 {[%emt 0:00:15]} 24. Bd4 {[%emt 0:00:10]} Bf6 {[%emt 0:00:57]} 25. Nb1 {[%emt 0:00:37]} Rac8 {[%emt 0:01:21]} 26. Nc3 {[%emt 0:00:38]} N4e5 {[%emt 0:01:01]} 27. Nxe5 {[%emt 0:03:07]} dxe5 {[%emt 0:01:08]} 28. Be3 {[%emt 0:00:14]} Be7 {[%emt 0:01:03]} 29. g3 {[%emt 0:01:29]} Bc5 {[%emt 0:01:33]} 30. Rd3 {[%emt 0:00:24]} Be8 {[%emt 0:02:35]} 31. Red1 {[%emt 0:00:39]} Rxd3 {[%emt 0:01:05]} 32. Qxd3 {[%emt 0:01:03]} Ne7 {[%emt 0:01:44]} 33. Bxc5 {[%emt 0:03:33]} Qxc5 {[%emt 0:00:06]} 34. Qd6 {[%emt 0:00:06]} Qxd6 {[%emt 0:01:24]} 35. Rxd6 {[%emt 0:00:02]} Bc6 {[%emt 0:00:21]} 36. f3 {[%emt 0:00:36]} Kf8 {[%emt 0:00:38]} 37. Kf2 {[%emt 0:00:14]} Ng6 {[%emt 0:00:50]} 38. Ke3 {[%emt 0:00:16]} Ke7 {[%emt 0:00:13]} 39. Rd2 {[%emt 0:00:57]} Ra8 {[%emt 0:01:53]} 40. Bb1 {[%emt 0:00:56]} Ra5 {[%emt 0:01:15]} 41. Bc2 {[%emt 0:01:10]} Nf8 {[%emt 0:00:51]} 42. Na2 {[%emt 0:00:12]} Be8 {[%emt 0:02:18]} 43. Nc3 {[%emt 0:00:59]} Bc6 {[%emt 0:02:52]} 44. Na2 {[%emt 0:00:07]} g5 {[%emt 0:00:59]} 45. Nb4 {[%emt 0:00:53]} Be8 {[%emt 0:00:12]} 46. Rd1 {[%emt 0:00:30]} Nd7 {[%emt 0:01:10]} 47. Rh1 {[%emt 0:01:44]} Nb6 {[%emt 0:01:04]} 48. Bd3 {[%emt 0:00:06]} Rc5 {[%emt 0:00:45]} 49. h4 {[%emt 0:00:46]} Nxc4+ {[%emt 0:00:27]} 50. Bxc4 {[%emt 0:00:01]} Rxc4 {[%emt 0:00:06]} 51. hxg5 {[%emt 0:00:38]} hxg5 {[%emt 0:00:02]} 52. Rh5 {[%emt 0:01:08]} Kf6 {[%emt 0:02:51]} 53. Rh8 {[%emt 0:01:02]} Bb5 {[%emt 0:00:48]} 54. Ra8 {[%emt 0:00:30]} Rc1 {[%emt 0:02:34]} 55. Ra5 {[%emt 0:00:12]} Bc4 {[%emt 0:02:40]} 56. Rc5 {[%emt 0:05:40]} b6 {[%emt 0:02:40]} 57. Rc6 {[%emt 0:00:14]} b5 {[%emt 0:00:13]} 58. Nd5+ {[%emt 0:00:32]} Kg7 {[%emt 0:01:35]} 59. Kd2 {[%emt 0:02:27]} Rb1 {[%emt 0:00:49]} 60. Kc2 {[%emt 0:00:31]} Rf1 {[%emt 0:01:21]} 61. Ne3 {[%emt 0:00:29]} Bb3+ {[%emt 0:02:08]} 62. Kd2 {[%emt 0:00:09]} Rxf3 {[%emt 0:00:11]} 63. Rc5 {[%emt 0:00:01]} Rxg3 {[%emt 0:01:31]} 64. Rxe5 {[%emt 0:00:15]} Kg6 {[%emt 0:02:07]} 65. Rxb5 {[%emt 0:00:05]} Rf3 {[%emt 0:00:24]} 66. Ng4 {[%emt 0:00:31]} f6 {[%emt 0:00:45]} 67. Rb4 {[%emt 0:00:32]} Kh5 {[%emt 0:01:05]} 68. e5 {[%emt 0:00:55]} f5 {[%emt 0:00:02]} 69. Nf6+ {[%emt 0:00:05]} Kg6 {[%emt 0:00:05]} 70. Nd7 {[%emt 0:00:06]} Rf2+ {[%emt 0:01:00]} 71. Ke1 {[%emt 0:00:18]} Rxb2 {[%emt 0:00:26]} 72. Nc5 {[%emt 0:00:02]} Ra2 {[%emt 0:00:34]} 73. Rb6 {[%emt 0:00:58]} f4 {[%emt 0:01:25]} 0-1

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Rios, Cristhian Camilo"]
[Black "Gonzalez Vidal, Yuri"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2467"]
[BlackElo "2553"]
[Annotator "ChessBase"]
[PlyCount "49"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:27]} Bb4 {[%emt 0:00:10]} 4. cxd5 {[%emt 0:00:33]} exd5 {[%emt 0:00:10]} 5. Bf4 {[%emt 0:00:35]} Ne7 {[%emt 0:03:08]} 6. e3 {[%emt 0:01:25]} c6 {[%emt 0:00:54]} 7. Nf3 {[%emt 0:01:56]} O-O {[%emt 0:01:18]} 8. Be2 {[%emt 0:00:29]} Bd6 {[%emt 0:02:24]} 9. Ne5 {[%emt 0:02:35]} Bc7 {[%emt 0:13:00]} 10. O-O {[%emt 0:07:22]} Nd7 {[%emt 0:00:33]} 11. Nd3 {[%emt 0:03:35]} Bxf4 {[%emt 0:02:54]} 12. Nxf4 {[%emt 0:00:17]} Nf6 {[%emt 0:01:10]} 13. b4 {[%emt 0:06:43]} a6 {[%emt 0:03:07]} 14. a4 {[%emt 0:00:38]} Qd6 {[%emt 0:04:35]} 15. b5 {[%emt 0:06:57]} axb5 {[%emt 0:06:41]} 16. axb5 {[%emt 0:00:11]} Bf5 {[%emt 0:01:04]} 17. Qb3 {[%emt 0:08:37]} h6 {[%emt 0:14:13]} 18. h3 {[%emt 0:08:11]} g5 {[%emt 0:04:16]} 19. Nh5 {[%emt 0:03:20]} Nxh5 {[%emt 0:01:52]} 20. Bxh5 {[%emt 0:00:09]} Bd3 {[%emt 0:00:49]} 21. Be2 {[%emt 0:03:14]} Bxe2 {[%emt 0:03:11]} 22. Nxe2 {[%emt 0:00:11]} f5 {[%emt 0:01:45]} 23. Rxa8 {[%emt 0:02:35]} Rxa8 {[%emt 0:00:03]} 24. bxc6 {[%emt 0:00:33]} bxc6 {[%emt 0:00:29]} 25. Rb1 {[%emt 0:01:42]} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Vera Gonzalez-Quevedo, Reynaldo"]
[Black "Espinosa Veloz, Ermes"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2431"]
[BlackElo "2515"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,141,-1,10,0,15,4,40,26,33,31,64,53,56,62,54,60,78,66,68,64,78,78,79,77,79,77,82,80,65,56,93,61,89,84,97,52,84,73,81,82,79,68,97,96,102,102,110,81,170,81,159,145,150,54,16,0,0,0,0,0,0,0,0,0,0,0,0,0,74,0,77,8,77,77,104,77,91,0,0,0,0,0,0,0,0,0,0,0,1433,1113,1295,218,221,0,0,0,205,287,6563,1591,1374,1203,1108,0,0,0,264,0,715,421,1710,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 Nc6 7. O-O e5 8. d5 Ne7 9. b4 Nh5 10. g3 f5 11. Ng5 Nf6 12. Bf3 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1} c6 {LiveBook: 46 Games} (12... Bd7 {keeps more tension.} 13. Re1 Qc8 14. exf5 gxf5 15. Be2 h6) 13. Be3 cxd5 14. cxd5 fxe4 15. Ncxe4 Nxe4 16. Bxe4 h6 17. Ne6 Bxe6 $1 18. dxe6 d5 19. Bg2 b6 {[#]} 20. Qb3 $146 Qd6 21. Rad1 {[%cal Rd1d5]} Rad8 22. Bxd5 Nxd5 {[#]} 23. e7 $1 {[%mdl 512]} Qxe7 24. Rxd5 Rxd5 25. Qxd5+ Kh7 26. Rc1 h5 27. Qe4 Qd7 28. Rc6 Rf5 29. Kg2 Qf7 30. Qc4 Qxc4 31. Rxc4 $16 {[%mdl 4096] Endgame KRB-KRB} Rf7 32. Rc6 Rd7 33. a4 Bh6 34. Kf3 Bxe3 35. fxe3 {KR-KR} Kh6 (35... Rd2 $16) 36. h4 (36. a5 $1 $18 {is more deadly.}) 36... Rf7+ (36... Rd2 $142) 37. Ke4 Rf2 38. Rc7 (38. Kxe5 $16 Rf3 39. e4) 38... Rb2 $1 $14 39. Rxa7 {Black must now prevent b5.} Rxb4+ 40. Kxe5 Rg4 $1 41. e4 {And now Rb7 would win.} Rxg3 42. Kd5 g5 43. hxg5+ Rxg5+ 44. e5 h4 45. Rb7 Rg6 (45... Rg4 $11) 46. Rc7 (46. Rb8 $16 Rg7 47. Rxb6+ Kg5 48. e6) 46... Rg1 (46... Rg3 $11) 47. e6 ({Better is} 47. Rc4 $1 $16) 47... Kg6 (47... Re1 $11 {keeps the balance.}) 48. Rc4 $16 h3 49. Rh4 (49. Re4 {feels hotter.} h2 50. e7 h1=Q 51. e8=Q+ Kh7 52. Qe7+) 49... Rg3 50. Kd6 (50. Re4 $1 $16 {Intending e7 and mate.} h2 51. e7) 50... Rd3+ $11 51. Kc7 Re3 52. Kd7 Rd3+ 53. Kc6 Re3 54. Kd7 Rd3+ 55. Ke8 Kf6 $2 {[%mdl 8192]} (55... Kg5 $11 56. Rh8 Rc3) 56. e7 $1 $18 Re3 {[#]} 57. Rf4+ $1 Kg7 58. Rg4+ Kf6 59. Rf4+ Kg7 $1 60. Rf2 Rg3 $2 (60... Rd3 61. Rf7+ Kg8) 61. Rh2 (61. Rf7+ $142 Kh6 62. Kf8) 61... Rd3 62. Rh1 Rg3 {[#]} 63. Kd7 $2 ({White must play} 63. Re1 $1 $18 {aiming for Kd7.} Rd3 64. Rg1+ Kh6 65. Kf7 Rf3+ 66. Ke6 Re3+ 67. Kd6 Rd3+ 68. Kc6) 63... Rd3+ $11 64. Ke8 $2 {[%mdl 8192]} (64. Kc7 $11 Kf7 65. Kxb6) 64... Rg3 $1 $18 65. Rh2 $2 (65. Re1 Rd3 66. Rg1+ Kh7 67. Kf7 Rf3+ 68. Ke6 Re3+ 69. Kd7 Rd3+ 70. Kc6) 65... Rd3 $1 66. Rb2 Rg3 (66... Rd1 $142 67. Rh2 Rd3) 67. Kd7 $2 ({Only move:} 67. Rd2 $18 Re3 68. Kd7) 67... Rd3+ $11 {The position is equal.} 68. Kc7 Kf7 69. Re2 Ke8 70. Kxb6 Rg3 71. a5 {Accuracy: White = 44%, Black = 47%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.18"]
[Round "8"]
[White "Fernandez Guillen, Ernesto J."]
[Black "Quesada Perez, Luis Ernesto"]
[Result "1-0"]
[ECO "B87"]
[WhiteElo "2401"]
[BlackElo "2510"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,85,9,20,-11,22,6,51,9,14,-16,-2,-52,10,14,11,15,12,0,5,19,11,12,39,35,71,75,66,66,87,72,216,216,230,222,235,231,225,149,151,74,98,77,306,320,320,315,274,304,415,418,665,683,676,666,635,568,501,827,777,777,777,777,730,739,29976,29977,29976,29977,29978,29979]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. f3 Nbd7 9. Be3 {B87: Sicilian Scheveningen/Najdorf: 6 Bc4, with early ...b5} Nc5 {LiveBook: 19 Games} 10. g4 {[%cal Bg2g4,Bg4g5][%mdl 32]} (10. Qd2 Bd7 11. O-O-O b4 12. Nce2 a5 13. Kb1 Qc8 14. c3 a4 15. cxb4 Ncxe4 16. fxe4 axb3 17. Nxb3 {0-1 (25) Fraiman,D (2255)-Alekseenko,K (2588) St Petersburg 2017}) 10... Qc7 11. Qd2 {The position is equal.} Bd7 12. g5 Nh5 $1 13. Nce2 $146 ({Predecessor:} 13. a4 Nxb3 14. Nxb3 b4 15. Ne2 Be7 16. Nbd4 g6 17. c3 {0-1 (29) Spanko,J (2168)-Likavsky,T (2410) Slovakia 2001}) 13... a5 14. c3 Nxb3 (14... d5 $1 $15) 15. axb3 $11 e5 16. Nc2 Qb7 17. b4 a4 18. Ng3 Nxg3 19. hxg3 Bc6 20. O-O-O Rd8 21. Rh5 g6 22. Rh4 $36 {[%mdl 2048] Black is under pressure.} Be7 23. Qh2 d5 (23... h5 $16) 24. Rxh7 $18 Rf8 {[#]} 25. Rh8 $1 Kd7 26. Rxf8 Bxf8 27. Bc5 Kc8 28. Qh3+ ({Better is} 28. exd5 Bxd5 29. Bxf8 Rxf8 30. Re1) 28... Bd7 $16 29. Qh7 dxe4 $2 (29... Bxc5 $16 30. bxc5 Be6) 30. Qxf7 $18 Bxc5 31. bxc5 exf3 {[#]} 32. Nb4 $1 ({Don't do} 32. Qxg6 $6 Qc6 $16) 32... a3 33. bxa3 Qa7 (33... f2 $142 34. Qxf2 Bf5 35. Rxd8+ Kxd8) 34. Kb2 Qxc5 35. Qxf3 {Qa8+ is the strong threat.} Qa7 36. Nc6 Qb7 37. Ne7+ Kb8 38. Qxb7+ Kxb7 39. Nxg6 e4 40. Ne5 e3 41. Rxd7+ {White mates.} Rxd7 42. Nxd7 e2 43. Nc5+ {Precision: White = 66%, Black = 37%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Bok, Benjamin"]
[Black "Fernandez Guillen, Ernesto J."]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2643"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,106,34,15,29,25,47,51,88,53,46,54,68,12,23,10,4,0,28,33,30,10,23,0,0,0,5,1,12,16,10,3,51,-11,-16,-7,-7,-14,0,0,14,0,0,-27,6,11,22,0,0,0,0,0,0,-19,0,0,0,-153,-90,-82,-98,-141,-141,-222,-220,-205,-139,-104,-20,-102,0,-70,-35,-108,-102,-214,-179,-160,-112,-180,-169,-173,0,0,0,-147,0]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Bg2 O-O 8. O-O Qb6 9. e3 d6 10. b3 Bd7 {A39: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6 6 0-0 0-0 7 d4} 11. Bb2 Rac8 (11... Rfc8 12. Qd2 Rab8 13. Rfd1 Qa5 14. Rac1 Nxd4 15. exd4 Qh5 16. Re1 Re8 17. Qe2 Bg4 18. f3 {½-½ (44) Sarana,A (2587)-Shinkevich,V (2433) Sochi 2018}) 12. Qd2 {LiveBook: 4 Games} a6 {The position is equal.} 13. Rfd1 Qa7 $146 ({Predecessor:} 13... Rfd8 14. Rac1 Qa7 15. Na4 b6 16. Nc3 Ng4 17. Nxc6 Bxc6 18. Bxc6 Rxc6 {½-½ (38) Chekhov,S (2465)-Najdin,D (2235) Tambov 2016}) 14. Nde2 Rfd8 15. Nf4 Bg4 16. Re1 b6 17. Rac1 (17. h3 $14 Bd7 18. g4) 17... Ne5 $11 18. Ncd5 Nxd5 19. cxd5 Qb7 20. h3 Bd7 21. Bd4 a5 22. Rxc8 Rxc8 23. Rc1 Rxc1+ 24. Qxc1 Bb5 25. Qc3 Bf6 26. h4 Nd7 27. Bh3 (27. Ne6 $14) 27... Bxd4 28. Qxd4 Ne5 {aiming for ...Nf3+.} 29. Qc3 Ba6 30. e4 Bb5 31. Bc8 Qb8 32. a4 Bd7 (32... Bc4 {keeps more tension.} 33. Bh3 Ba6 34. Kh1 Qb7 35. h5 Qb8) 33. Bxd7 Nxd7 34. Ne2 Nc5 35. Qc4 Qc8 36. Kg2 f5 37. Nc3 Qf8 38. exf5 Qxf5 39. Ne2 $2 (39. Nb5 $11) 39... Qb1 (39... Nd3 $142 $1 40. f4 Nc5) 40. Nd4 $17 {[#]} Qe4+ $1 41. Kf1 Kf7 42. Qc3 (42. Nb5 $17 {was necessary.}) 42... Qxd5 43. Qe3 e5 44. Nb5 Qd1+ ({Black should try} 44... Qh1+ $17 45. Ke2 Ke6) 45. Kg2 $11 Qd5+ (45... Qxb3 $17 46. Nxd6+ Ke6 47. Qxb3+ Nxb3) 46. Kg1 (46. Kf1 $11) 46... Nd7 47. Qc1 (47. Qc3 $15) 47... Qc5 $17 ({Of course not} 47... Qxb3 $6 48. Qc6 $15) 48. Qc4+ (48. Qxc5 $17 dxc5 49. Kf1) 48... d5 49. Qe2 Qb4 50. Qf3+ (50. Qd3 $17 Qc5 51. Qe2) 50... Nf6 $19 51. Qe3 Nd7 52. Qf3+ Nf6 53. Qe3 {[#]} Nd7 {Precision: White = 39%, Black = 31%.} (53... Ne4 $1 $17 54. Kg2 Qc5) 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Cordova, Emilio"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2595"]
[BlackElo "2559"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,63,0,3,0,22,2,39,37,28,26,20,26,27,6,8,6,7,7,8,8,9,8,8,8,15,11,15,15,10,8,8,8,26,-9,-3,-8,0,-5,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Bd5 11. Qc1 {E05: Open Catalan: 5 Nf3 Be7} (11. Qc2 Be4 12. Qc1 h6 13. Bxf6 Bxf6 14. Nbd2 Bxf3 15. Nxf3 a5 16. Rd1 c6 17. h4 Na6 18. Qf4 Qc7 19. Qg4 Rad8 20. Rac1 Nb4 {0-1 (45) Wei,Y (2729)-So,W (2780) chess.com INT 2018}) 11... Nc6 {LiveBook: 9 Games} 12. Nbd2 {aiming for Bxf6.} Ne4 $146 ({Predecessor:} 12... Nxd4 13. Nxd4 Bxg2 14. Nxe6 Qd5 15. Bxf6 Bxf1 16. Nf4 Qd7 17. Bxe7 Qxe7 18. Nxf1 b5 19. Ne3 c5 20. Qc3 Rfe8 21. Nfd5 Qd8 22. axb5 axb5 23. Rxa8 Qxa8 24. Nf5 f6 25. Nxf6+ {1-0 (25) Lafuente,P (2422)-Liascovich,L (2312) Buenos Aires 2002}) 13. Bxe7 Nxe7 14. Nxe4 Bxe4 15. Qf4 Bxf3 16. Bxf3 Nd5 17. Qc1 a5 18. Rd1 c6 19. Qc5 Rc8 20. Rac1 b6 21. Qc4 Nb4 22. Qb3 Qd6 23. Rc4 Rc7 24. Qe3 Rd8 25. Rdc1 Rdc8 26. b3 c5 27. Qf4 Qxf4 {The position is equal.} 28. gxf4 g6 29. Kg2 Kf8 30. e3 Ke7 31. Be2 Nd5 32. Bf3 {Accuracy: White = 60%, Black = 60%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Gonzalez Vidal, Yuri"]
[Black "Almeida Quintana, Omar"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2553"]
[BlackElo "2545"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,37,31,36,45,106,119,118,86,141,83,137,135,137,144,252,179,368,139,426,310,532,533,639,635,978,892]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. b3 d6 6. e5 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} dxe5 7. Nxe5 Qg5 {[%mdl 64] LiveBook: 3 Games. Double Attack} 8. Ng4 {White is slightly better.} f5 {[#]} (8... Nf6 $14 9. Ne3 Nd5) 9. Qf3 $1 $16 {[%cal Rf3c6]} fxg4 10. Qxc6+ Kd8 $146 (10... Kf7 $142 11. Qxa8 Qe5+ {[%mdl 64] Double Attack} 12. Kd1 Qxa1 {[%mdl 64] Double Attack}) ({Predecessor:} 10... Kf7 11. Qxa8 Qe5+ 12. Kd1 Qc7 13. Qe4 Nf6 {0-1 (83) Howell,D (2650)-Williams,S (2462) Aberystwyth 2014}) 11. Qxa8 Qe5+ {[%mdl 64] Double Attack} 12. Kd1 {Nc3 is the strong threat.} Qxa1 13. Nc3 a6 (13... Bd6 $16 {was worth a try.}) 14. Ke2 {Hoping for Rd1.} Nf6 $2 (14... Kc7) 15. Rd1 $2 (15. Qc6 $18) 15... c4 $2 {[%mdl 8192]} (15... Kc7 $16) 16. bxc4 {[%cal Bb3c4,Bc4c5][%mdl 32]} (16. Ba3 {[#]} Qxd1+ $1 {[%mdl 512]} 17. Kxd1 Bxa3 $16) 16... Kc7 $2 (16... Nd7 17. Ba3 Qxd1+ 18. Nxd1 (18. Kxd1 Bxa3 19. Qc6 Ke7 $16) 18... Bxa3) 17. Qa7+ $18 {White is clearly winning.} ({Weaker is} 17. Ba3 Qxd1+ 18. Kxd1 (18. Nxd1 Bxa3 19. Qa7+ Bb7 $14) 18... Bxa3 $16) 17... Bb7 18. c5 ({Not} 18. Ba3 Qxd1+ 19. Kxd1 Bxa3 $16) 18... Nd5 19. Ba3 {Accuracy: White = 74%, Black = 10%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Theodorou, Nikolas"]
[Black "Rios, Cristhian Camilo"]
[Result "1/2-1/2"]
[ECO "D78"]
[WhiteElo "2546"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,71,0,18,-12,-11,0,2,-13,-10,-4,-18,-10,-9,-15,-5,-5,-6,-7,-6,-9,-9,-9,0,0,0,-10,13,-10,-10,-10,-9,-14,-13,-14,-14,-14,-14,-13,5,0,6,0,6,-13,-13,-13,-13,-13,-13,-8,-6,-21,-17,-22,-22,-22]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 c6 6. O-O O-O 7. Qb3 Qb6 8. Nc3 Bf5 9. Ne5 Be6 {LiveBook: 14 Games. The position is equal.} 10. Na4 {D78: Fianchetto Grünfeld: 6 0-0 c6} (10. Qd1 dxc4 11. Na4 Qd8 12. Nc5 Qc8 13. Qc2 Bh3 14. Qxc4 Bxg2 15. Kxg2 Nbd7 16. Ncd3 Nxe5 17. dxe5 Nd5 {1-0 (36) Nakamura,H (2787)-Kramnik,V (2800) Moscow 2018}) 10... Qxb3 11. axb3 {aiming for Nb6!} Nfd7 $146 ({Predecessor:} 11... Nbd7 12. Nc3 Nb6 13. cxd5 Nfxd5 14. Nxd5 Nxd5 15. Bd2 Bxe5 16. dxe5 Nc7 17. b4 Rfd8 {1-0 (49) Maiorov,N (2538)-Hnaras,F (1875) Paleochora 2013}) 12. Rd1 dxc4 13. Nxc4 b5 14. Nc3 $1 bxc4 15. d5 $1 {[%cal Rd5e6]} cxd5 16. Nxd5 Nc6 17. Nc7 Rad8 18. Nxe6 fxe6 19. Bxc6 Ne5 20. Rxd8 Rxd8 21. Ba4 Rd1+ 22. Kg2 {[#] Hoping for bxc4.} Nd3 $1 {[%mdl 512]} 23. exd3 cxd3 {Threatens to win with ...d2.} 24. b4 Re1 {...d2 is the strong threat.} 25. Ra3 Rxc1 26. Rxd3 Bxb2 $11 {[%mdl 4096] Endgame KRB-KRB} 27. Rd7 Ra1 28. Rxa7 Kf7 29. Ra6 Bd4 30. f4 Ra2+ 31. Kf3 {[#] Black must now prevent Be8+!} Rxh2 32. Bb3 Rb2 33. Bxe6+ Kg7 34. Ra4 Bc3 35. Ra3 Bxb4 36. Rb3 {Precision: White = 55%, Black = 83%.} 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Quesada Perez, Yasser"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2536"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,51,0,0,0,0,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. O-O O-O 12. Rfc1 Rfc8 13. h3 h6 14. a3 {D14: Slav Defence: Exchange variation with ...Bf5} (14. Nd2 Nd7 15. Ne2 Ne7 {½-½ (15) Bu,X (2725)-Duda,J (2724) Liaocheng 2018}) 14... Nd7 {[#] LiveBook: 8 Games. The position is equal.} 15. Ne2 $146 ({Predecessor:} 15. Na4) 15... Rc7 16. Rc2 Rac8 17. Rac1 Ne7 18. Rxc7 Rxc7 19. Rxc7 Qxc7 20. Qc3 Qxc3 21. Nxc3 $11 {KNN-KNN} Nf5 22. Kf1 Nd6 23. b3 Kf8 24. Ke2 Ke7 25. Kd3 Nf6 26. Nd2 1/2-1/2

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Espinosa Veloz, Ermes"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2515"]
[BlackElo "2482"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,71,51,33,34,34,34,33,33,33,38,33,33,33,35,41,108,116,154,152,210,208,329,208,208,205,199,202,201,201,205,193,190,193,212,212,283,283,283,295,751,671,652,675]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 O-O 9. O-O Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. b3 Nd7 14. Bf2 Nc5 15. Rab1 Be5 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} 16. Rfd1 {LiveBook: 9 Games} (16. Bd1 e6 17. Bc2 Qe7 18. Rfe1 Rfd8 19. a3 Be8 20. b4 axb4 21. axb4 Na6 22. Red1 Rdc8 23. Bd3 {½-½ (41) Erdos,V (2624)-Kveinys,A (2535) Antalya 2017}) 16... f5 17. exf5 Rxf5 {White is slightly better.} 18. Be3 Qf8 19. Nd5 e6 20. Nc7 Rc8 21. Nb5 $1 {[%cal Rb5d6]} ({Much worse is} 21. Qxa5 Qf6 $17) 21... Bxb5 $1 22. cxb5 {[#]} Qf6 $146 (22... b6 $14) ({Predecessor:} 22... b6 23. g3 {1-0 (40) Espinosa Veloz,E (2520)-Martinez Duany,L (2509) Havana 2018}) 23. g3 $1 $16 d5 24. Rbc1 $36 {[%mdl 2048] White is really pushing.} ({Inferior is} 24. Qxa5 Bc3 $11) 24... b6 {[#]} (24... Qe7 $16) 25. f4 $1 $18 {[%cal Rf4e5]} Bb2 (25... d4 {is a better defense.}) 26. Rc2 d4 27. Bxd4 ({Stronger than} 27. Rxb2 dxe3 28. Qc1 Rd5 $15) 27... Bxd4+ 28. Qxd4 Qxd4+ 29. Rxd4 Rd5 30. Rxd5 exd5 {[%mdl 4096] Endgame [#] KRB-KRN} 31. Rd2 $1 Ne4 32. Rxd5 Rc1+ 33. Kg2 Rc2 34. Kf3 Nc5 $2 (34... Kf8 35. Bd1 Nd2+ 36. Ke2 Nb1+ 37. Bxc2 Nc3+ 38. Ke3 Nxd5+ 39. Kd4 Nf6) 35. Bc4 Kf8 {[#]} 36. Rxc5 $1 {Precision: White = 86%, Black = 59%.} 1-0

[Event "XXX Torre Memorial 2018"]
[Site "Merida"]
[Date "2018.12.19"]
[Round "9"]
[White "Torres Rosas, Luis Carlos"]
[Black "Baryshpolets, Andrey"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2277"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2018.12.15"]
[EventType "swiss"]
[EventCountry "MEX"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,64,0,-19,-8,-18,-58,-61,-73,-66,-62,-66,-64,-51,-60,-49,-108,-108,-147,-133,-229,-232,-343,-338,-376,-372,-377,-375,-346,-341,-377,-326,-536,-501,-529,-529,-499,-422,-375,-350]} 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Qc2 Bd6 7. Be2 O-O 8. O-O dxc4 9. Bxc4 b5 10. Be2 a6 11. Rd1 Qc7 12. e4 e5 13. g3 Re8 14. a3 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (14. dxe5 Nxe5 15. Bg5 Nxf3+ 16. Bxf3 Be5 17. Rac1 Bh3 18. Bxf6 gxf6 19. Qe2 Be6 20. Bg4 Qe7 21. Qf3 Rad8 {0-1 (68) Le,Q (2739)-Navara,D (2737) Saint Louis 2017}) 14... h6 {LiveBook: 16 Games} 15. dxe5 Nxe5 16. Nd4 {With the idea f4.The position is equal.} Bc5 17. Nf5 $146 ({Predecessor:} 17. b4 Bb6 18. a4 Bg4 19. Be3 Bxe2 20. Qxe2 Nfg4 21. Nc2 Nxe3 22. Nxe3 {1-0 (34) Garus,E-Schneider,K GER email 2010}) 17... Bxf5 18. exf5 Qb6 19. Rf1 Neg4 20. Bxg4 Nxg4 21. Ne4 (21. Bf4 $15) 21... Bd4 $17 22. h3 Ne5 23. f6 (23. Bf4 $17 {was called for.}) 23... c5 $19 24. Kg2 (24. Bf4 $142) 24... Qc6 25. f3 Re6 26. Bf4 {[#]} Nxf3 $1 {[%mdl 512]} 27. Kxf3 (27. Rxf3 Rxe4) 27... Rae8 {[%cal Re6e4]} ({Weaker is} 27... gxf6 28. g4 $19) 28. Rae1 g5 29. Bc1 $2 (29. Bd2) 29... Rxf6+ 30. Kg2 Rfe6 31. Qb3 R8e7 32. Qf3 Rxe4 {Accuracy: White = 33%, Black = 88%.} 0-1

