[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.17"]
[Round "1"]
[White "Bachmann, Axel"]
[Black "Slipak, Sergio"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2465"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,57,19,32,33,30,27,53,27,31,19,14,12,16,-14,-11,-8,-8,-7,28,0,0,-10,170,98,163,141,162,151,221,225,173,143,200,209,885,900,900,897,892,888,934,926,1333,1325]} 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. b3 Be7 5. Bg2 O-O 6. O-O a5 7. Nc3 c6 8. Bb2 {A14: English Opening: 1...e6 with b3 by White} b6 {LiveBook: 3 Games} 9. d3 (9. Rc1 Ba6 10. d3 Nbd7 11. Nd4 Rc8 12. e3 Re8 13. f4 Bf8 14. Qd2 e5 15. Nf3 exf4 16. gxf4 {0-1 (50) Mareco,S (2606)-Sadorra,J (2560) Baku 2016}) 9... Bb7 10. e3 {White has an edge.} Na6 {[%cal Bb8a6,Ba6c5,Bc5e4][%mdl 32]} 11. Qe2 Nc5 12. Rad1 a4 13. d4 Nce4 14. Nxa4 $146 ({But not} 14. bxa4 Nd6 15. Ba3 Nxc4 16. Bxe7 Qxe7 $17) (14. Nd2 Nxd2 15. Qxd2 a3 16. Ba1 {0-1 (32) Thorsteins,K (2305)-Abramovic,B (2445) Reykjavik 1982}) 14... b5 $1 {[%cal Rb5a4]} 15. Nc3 bxc4 16. bxc4 Qa5 17. Nxe4 Nxe4 18. Ne5 {[%cal Bf3e5,Be5d7,Bd7b6][%mdl 32]} Qxa2 $2 {[#]} (18... f6 $11 19. Nd7 Rfd8 20. Bxe4 dxe4) 19. Qc2 ({White should try} 19. Bxe4 $1 $18 dxe4 20. Qc2) 19... Ba3 (19... Qa4 $16 20. Bxe4 dxe4 21. Qxe4 Qb3) 20. Bxe4 dxe4 21. Rb1 {[%cal Bd1b1,Bb1a1,Ba1a7][%mdl 32]} c5 (21... Rfd8 $16 {was called for.}) 22. dxc5 $18 f6 23. Nd7 Rf7 (23... Rfd8 $16 {is a better defense.}) 24. Nb6 Ra7 $2 {[#]} (24... Ra6 25. Rfd1 (25. Na4 Bxb2 26. Nxb2 Bc6 $11) 25... h6) 25. Ra1 {White is clearly winning.} Qxb2 26. Qxb2 Bxb2 27. Rxa7 Bc6 28. Nc8 Be5 29. Ne7+ 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.17"]
[Round "1"]
[White "Flores, Diego"]
[Black "Garcia Palermo, Carlos"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,80,-20,-14,-24,-22,0,-7,42,39,61,38,49,46,42,21,46,13,42,-60,-49,-59,-64,-106,-10,-116,-120,-131,-119,-271,-279,-260,-243,-394,-365,-452,-458,-445,-354,-378,-363,-593,-500,-445,-349,-329,-199,-176,-199,-202,-187,-238,-237,-256,-259,-245,-245,-254,-228,-367,-354,-397,-397,-1075,-1079,-851,-767,-610,-595,-590,-548,-592,-575]} 1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 Nc6 {E28: Nimzo-Indian: Sämisch: 5...0-0 6 e3} (6... b6 7. Bd3 Bb7 8. f3 c5 9. Ne2 Nc6 10. e4 Ne8 11. O-O Na5 12. f4 f5 13. Ng3 Nd6 14. exf5 exf5 15. dxc5 bxc5 16. Rb1 Qc7 17. Re1 g6 18. Bf1 Rae8 19. Be3 Ndxc4 {0-1 (44) Anton Guijarro,D (2631)-Eljanov,P (2723) Dubai 2014}) 7. Bd3 b6 8. e4 {[%cal Be3e4,Be4e5][%mdl 32]} Ne8 {The position is equal.} 9. Nf3 Ba6 10. e5 f6 $146 (10... f5 11. Bg5 Qc8 12. d5 Na5 13. Qe2 Rf7 14. Rb1 h6 15. Bc1 {1-0 (34) Bigabylov,Z (2152)-Kesidis,O (2228) Chalkidiki 2016}) 11. Qc2 h6 12. Qe2 Na5 13. exf6 Nxf6 14. Ne5 ({White should try} 14. Bf4 $14) 14... d6 $1 $15 {[%cal Bd7d6,Bd6e5,Be5e4][%mdl 32]} 15. Ng6 Re8 16. O-O {[#]} Qd7 (16... e5 $1 $17 {[%cal Re5e4] Threatens to win with ...e4.} 17. dxe5 dxe5) 17. Re1 {[#]} (17. f4 $1 $11) 17... e5 $1 $17 {[%cal Re5d4]} 18. dxe5 dxe5 19. Rd1 $2 (19. f3 $17 {keeps fighting.}) 19... e4 $19 20. Bc2 Qf7 21. Nh4 $2 (21. Nf4) 21... Bxc4 22. Qe3 Qh5 23. Qg3 Bd3 24. Bxh6 Qxh6 25. Rxd3 $2 (25. Bxd3 exd3 26. Nf5) 25... exd3 26. Nf5 Qh7 27. Bxd3 Rad8 {...g6 is the strong threat.} 28. Ne7+ Rxe7 29. Bxh7+ Kxh7 30. h3 (30. f3 $142) 30... Nb3 31. Qh4+ Kg6 32. Rb1 Nd2 33. Rc1 Rd3 34. Kh1 (34. Qa4 {might work better.}) 34... Re4 35. f4 Kf7 36. Re1 $2 (36. Qf2) 36... g5 {Black is clearly winning.} 37. Qf2 Rxf4 (37... gxf4 $2 38. Rd1 Nf3 39. Rxd3 $17) 38. Qe2 Nde4 {White must now prevent ...Ng3+.} ({Stronger than} 38... Rxc3 39. Qxd2 Rc5 40. Qa2+ Kg6 41. Qb1+ Kf7 42. Qb3+ Kg6 43. Re7 $16) 39. Kg1 Rd2 40. Qc4+ Kg6 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.17"]
[Round "1"]
[White "Pichot, Alan"]
[Black "Hoffman, Alejandro"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2556"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,136,22,32,28,32,29,35,23,12,29,20,16,15,6,8,13,24,20,10,-7,0,0,0,0,0,-48,-10,-79,-57,-81,-17,-71,-33,-58,-19,-21,-17,-20,-15,-29,0,-14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-14,0,-72,0,-68,-47,-115,-15,-8,-20,-20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-164,-157,-233,-214,-525,-521,-431,-196,-233,-234,-2159,-868,-29975,-29976,-29973,-29977,-29976,-29968,-29982,-29982,-29983,-29984,-29983,-29954,-29961,-4672,-5089,-2206,-1375,0,-1658,0,-6211,-7202,-29990,-29991,-29991,-29992]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d3 Bd7 6. c3 g6 7. Re1 Bg7 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} O-O 9. Nf1 {C66: Ruy Lopez: Steinitz Defence} (9. Ba4 Nh5 10. Nf1 Kh8 11. h3 f5 12. exf5 gxf5 13. d4 e4 14. Ng5 Nf6 15. d5 Ne5 16. Bxd7 Qxd7 {1-0 (42) Caruana,F (2804)-Kramnik,V (2812) Paris 2016}) 9... h6 10. Ng3 Qe7 11. a4 {White is slightly better.} a6 12. Bc4 Na5 $146 (12... Be6 13. a5 Bxc4 14. dxc4 Qe6 15. b3 Ne7 16. h3 Nd7 {½-½ (31) Luetke,J (2326)-Semina,S (2182) Germany 2005}) 13. Ba2 c5 14. Be3 Kh7 15. b4 cxb4 16. cxb4 Nc6 {[%cal Ba5c6,Bc6d8,Bd8e6,Be6c5][%mdl 32]} 17. Qd2 Bg4 18. b5 axb5 19. axb5 Nd8 20. b6 Ne6 21. Qb4 (21. Bxe6 $11 fxe6 22. Ra7) 21... Bxf3 $17 22. gxf3 h5 (22... Nf4 $17 23. Bc4 Rxa1 24. Rxa1 Nh3+ 25. Kf1 Nd7) 23. Kh1 (23. Bxe6 $11 Qxe6 24. Ra7) 23... Bh6 24. Ne2 Bxe3 25. fxe3 Nc5 26. Bc4 Rxa1 27. Rxa1 Nfd7 28. d4 exd4 29. exd4 (29. Nxd4 Nxe4 $1 {[%mdl 512]} 30. Be2 Nec5 $17) 29... Nxe4 30. fxe4 Qxe4+ 31. Kg1 Qe3+ 32. Kg2 Qe4+ 33. Kf2 Qh4+ 34. Kg2 Qe4+ 35. Kf2 Qh4+ 36. Kg1 Qg4+ 37. Kf2 Qh4+ 38. Kf1 (38. Kg1 $11 {remains equal.} Qg4+ 39. Kh1 Qe4+ 40. Kg1 Qg4+) 38... Qxh2 ({Black should try} 38... Nf6 $1 $17 {[%cal Rf6g4] Strongly threatening ...Ng4.} 39. Qe1 (39. Qxd6 Ne4 40. Qf4 Qxf4+ 41. Nxf4 Nd2+ 42. Ke2 Nxc4 $17) 39... Qxh2) 39. Ra3 (39. Qb3 $11) 39... Nf6 $15 {[%mdl 1024] Black has compensation.} 40. Rf3 (40. Qb3 $15) 40... Ng4 (40... Qh1+ $6 41. Ng1 Kg7 42. Rxf6 $1 {[%mdl 512]} (42. Qxd6 Ng4 $11) 42... Kxf6 43. Qxd6+ Kg7 44. Qe5+ (44. Bd5 Qh4 45. Bxb7 Rd8 46. Qe5+ Qf6+ 47. Qxf6+ Kxf6 $11) 44... Kh6 45. Bd5 $14) (40... Ra8 $1 $17 {[%cal Ra8a1]} 41. Qb1 (41. Qc3 Ne4 42. Rxf7+ Kh6 43. Qe3+ g5 44. Rh7+ Kxh7 $17) 41... Kg7) 41. Ke1 $11 Qh1+ (41... Re8 $2 42. Rxf7+ Kh6 43. Kd2 $18) 42. Rf1 Qh4+ 43. Kd2 Qe7 44. Rf3 Kg7 45. Qb5 h4 46. Bb3 Kh6 47. Rh3 f5 48. Nf4 $1 {[%cal Rf4e6] aiming for Ne6.} (48. Kc3 Nf2 49. Rh2 Qe3+ 50. Kb2 Qd2+ 51. Ka3 Ra8+ 52. Ba4 Qe3+ 53. Qb3 Qxe2 $19) 48... Qe4 $36 {[%mdl 2048] Black has the initiative.} 49. Rxh4+ Kg5 50. Rxg4+ $2 (50. Ne6+ $1 $11 Kxh4 51. Nxf8) 50... Kxg4 $19 51. Ne6 (51. Ne2 $17 Re8 52. Bd1 Qe3+ 53. Kc2) 51... Rh8 $1 {[%cal Rh8h2]} 52. Qf1 $2 (52. Bd1+ Kg3 53. Qd3+ (53. Qb3+ $2 Kf2 54. Qd3 Ra8 $19) 53... Qxd3+ 54. Kxd3) 52... Rh2+ $1 53. Kc3 f4 (53... Rh3+ $2 54. Qxh3+ $1 {[%mdl 512]} Kxh3 55. Ng5+ Kg3 56. Nxe4+ fxe4 57. Kd2 $18 (57. Bd5 $2 e3 58. Bxb7 e2 $19)) (53... Qe3+ $142 54. Kb4 f4) 54. Bd1+ Kf5 55. Qb5+ $2 (55. Ng7+ Kf6 56. Ne8+ $1 {[%mdl 512]} Ke7 57. Nc7) 55... Kf6 ({Not} 55... Kxe6 $2 56. Qe8+ Kf5 {[#]} 57. Bg4+ $1 {[%mdl 512]} Kxg4 58. Qxe4 Rh3+ 59. Kb4 $18) (55... d5 $142 56. Qd3 Kxe6 57. Bg4+ Kd6) 56. Qg5+ Kxe6 {[%mdl 4096] Endgame KQR-KQB} 57. Bb3+ d5 58. Kb4 Qxd4+ 59. Kb5 Qd3+ 60. Kb4 Qe4+ 61. Ka5 Rb2 62. Qd8 Qe1+ (62... Rxb3 63. Qe7+ Kxe7 $11) (62... Qe5 $142 63. Qc8+ Kf6 64. Qd8+ Kf5 65. Ka4 f3 66. Qc8+ Ke4 67. Ka3 Rd2 68. Kb4 f2 69. Qc1 Qd6+ 70. Kc3 Qg3+ 71. Kb4 Qd6+ 72. Kc3 Rd3+ 73. Kb2 Qf6+ 74. Ka2 f1=Q 75. Bxd5+ Rxd5 76. Qc2+ Kf4 77. Qc7+ Rd6 78. Qc3 Qe2+ 79. Kb1 Rxb6+ 80. Qb4+ Rxb4+ 81. Kc1 Qc6#) 63. Ka4 Qa1+ 64. Kb4 Qe1+ 65. Ka4 $1 {Black must now prevent Qe8+.} Qe4+ 66. Ka5 $1 Kf5 ({Worse is} 66... Rxb3 67. Qe7+ Kf5 68. Qf8+ Kg5 69. Qxf4+ Kh5 70. Qg5+ Kxg5 $11) 67. Qh8 Qe1+ ({Inferior is} 67... Rxb3 68. Qf6+ Kg4 69. Qxf4+ Kxf4 $11) 68. Ka4 Qa1+ 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.17"]
[Round "1"]
[White "Morovic Fernandez, Ivan"]
[Black "Mareco, Sandro"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2527"]
[BlackElo "2655"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,69,5,18,27,28,11,24,16,19,20,23,0,49,0,0,0,0,0,11,16,17,0,15,9,21,26,22,15,22,13,16,26,9,12,12,8,112,78,164,21,75,22,546,531,2134,880,29992,29993,29996,29997]} 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 Nc6 5. O-O d5 6. c3 Bd6 7. Nbd2 O-O 8. dxc5 Bxc5 9. b4 Bd6 10. Bb2 e5 {D05: Colle System with ...e6} (10... Bd7 11. a3 a5 12. Qe2 Ne7 13. e4 e5 14. Rfe1 Re8 15. Rad1 axb4 16. axb4 Ra2 17. Rb1 Ng6 18. g3 {0-1 (53) Ganguly,S (2652)-Kravtsiv,M (2621) Berlin 2015}) 11. e4 Bg4 {LiveBook: 6 Games} 12. Re1 Rc8 $146 {White has an edge.} (12... Re8 13. h3 Bh5 14. exd5 Nxd5 15. Qc2 Nf6 16. b5 Na5 17. c4 Qc7 18. Rac1 {½-½ (62) Richter,M (2505)-Hertneck,G (2476) Germany 2016}) 13. h3 Bxf3 14. Qxf3 d4 15. a3 Bb8 16. Nb3 a6 17. Rad1 dxc3 18. Bxc3 Qe7 (18... Nd4 $2 19. Bxd4 exd4 20. e5 $18) 19. Bc4 Nd4 20. Bxd4 exd4 21. Nc5 {e5 is the strong threat.} (21. Rxd4 Be5 22. Qd3 Rfe8 $17) 21... Be5 {With the idea ...b6.} 22. Qf5 {aiming for f4.} b6 {White must now prevent ...g6.} 23. Nd3 $36 {[%mdl 2048] White is more active.} Rxc4 24. Nxe5 g6 25. Qg5 h6 $1 {[%cal Rh6g5]} 26. Qf4 Nh5 27. Qh2 Rc3 $1 28. Rxd4 Qf6 (28... Rd8 $11 {remains equal.} 29. Rxd8+ Qxd8) 29. Rd5 {Strongly threatening g4.} Rxa3 (29... Qe7 $16 {was worth a try.}) 30. Ng4 (30. Nd7 $18 Qc3 31. Red1) 30... Qc3 {[#]} (30... Qf4 $11) 31. Red1 ({White should try} 31. Rdd1 $1 $16) 31... Qxb4 $2 {[%mdl 8192] [#]} (31... Nf6 $11 {and Black has nothing to worry.} 32. Nxf6+ (32. Nxh6+ Kg7 33. Qf4 Nxd5 34. exd5 Qf6 $15) 32... Qxf6) 32. Rxh5 $1 $18 {[%mdl 512]} ({Less strong is} 32. Nxh6+ Kh7 $14) ({Weaker is} 32. Qe5 Ra5 33. Nxh6+ Kh7 $16) 32... gxh5 33. Nf6+ (33. Nxh6+ $142 Kh7 34. Qf4) 33... Kh8 34. Qf4 {[%cal Rf4h6]} Kg7 35. Nxh5+ 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.17"]
[Round "1"]
[White "Sosa, Tomas"]
[Black "Van Riemsdijk, Herman C"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2318"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,59,0,10,8,22,18,32,27,90,89,88,90,93,93,87,61,81,73,130,129,117,133,112,126,133,132,113,108,98,129,902,879]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} Bg4 10. d5 Na5 {[%cal Bc6a5,Ba5c4,Bc4b6,Bb6d7,Bd7c5][%mdl 32]} 11. Bc2 c6 12. h3 Bc8 13. dxc6 Qc7 14. Nbd2 Qxc6 15. Nf1 Nc4 16. a4 {[%cal Ba2a4,Ba4a5][%mdl 32] C91: Closed Ruy Lopez: 7...d6 8 c3 0-0 9 d4} (16. Ng3 Re8 17. a4 Bb7 18. Qe2 Nb6 19. axb5 axb5 20. Bg5 Qd7 21. Rad1 Bd8 22. Nf5 Nc8 23. Bxf6 Bxf6 24. Bb3 Ra6 25. Qd3 {1-0 (45) Kamsky,G (2659)-Naroditsky,D (2646) Saint Louis 2017}) 16... Nb6 17. a5 $146 (17. Bg5 Nxa4 18. Bxa4 bxa4 19. Ne3 Qxe4 20. Bxf6 Bxf6 21. Qxd6 Bxh3 22. c4 Rfd8 23. Qc7 Rd3 {0-1 (40) Tseshkovsky,V (2549)-Klovans,J (2408) Condino 2009}) 17... Nbd7 18. Ng3 {White is slightly better.} g6 (18... Nc5 $11 {remains equal.}) 19. Bh6 $16 Re8 20. Qd2 Nc5 21. b4 Ne6 22. Bb3 {Strongly threatening Bd5.} Qc7 23. Rad1 Bb7 (23... Rd8 $142) 24. Ng5 Nxg5 25. Bxg5 (25. Qxg5 Nxe4 26. Qe3 Nxg3 27. Qxg3 (27. fxg3 Rad8 $15) 27... Bf6 $15) 25... Rad8 26. Qa2 Rf8 27. Bh6 Qxc3 28. Re3 Qxb4 {[#]} 29. Nf5 $1 {[%mdl 512]} ({Weaker is} 29. Bxf8 Rxf8 30. Rb1 Kg7 $15) 29... gxf5 $4 {[%mdl 8192]} (29... d5 $16) 30. Rg3+ 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.17"]
[Round "1"]
[White "Darcyl, Tomas"]
[Black "Granda Zuniga, Julio E"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2405"]
[BlackElo "2658"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,76,3,-3,25,22,23,27,42,13,37,16,15,-4,-7,-26,-7,0,0,-8,0,-33,33,17,26,-8,0,-100,-113,-133,-104,-111,-106,-126,-134,-114,-117,-131,-111,-125,-116,-170,-116,-165,-118,-236,-182,-200,-211,-246,-240,-264,-274,-306,-278,-335,-333,-585,-557,-544,-440,-506,-480,-674,-675,-713,-685,-29990,-29991]} 1. Nf3 f5 2. e4 fxe4 3. Ng5 Nf6 4. d3 e5 5. dxe4 h6 6. Nf3 {LiveBook: 5 Games. A04: Unusual lines after 1 Nf3 and King's Indian Attack} Qe7 (6... Nc6 7. Bc4 Bc5 8. O-O d6 9. h3 Na5 10. Bd3 O-O 11. Nc3 a6 12. Qe2 Nc6 13. Be3 Bxe3 14. Qxe3 {½-½ (58) Bu,X (2714)-Zhang,Z (2649) Beijing 2008}) 7. Nc3 d6 8. Bc4 $146 {White has an edge.} (8. h3 Be6 9. Nh4 Qf7 10. Nf5 g6 11. Ne3 Nbd7 12. Ned5 Bxd5 13. exd5 {½-½ (48) Azevedo,E (1909)-Pinto,C (2124) Joao Pessoa 2012}) 8... g5 {[%cal Bg7g5,Bg5g4][%mdl 32]} 9. h4 g4 10. Nd2 (10. Nh2 $5 {looks sharper.} Bd7 11. Nf1 Nc6 12. Ng3 O-O-O 13. Be3) 10... c6 11. a4 Be6 12. Qe2 Nbd7 13. Bxe6 Qxe6 14. Nf1 d5 15. Ng3 Bc5 (15... d4 $15 16. Nb1 O-O-O) 16. O-O O-O-O {[%cal Be8c8,Bc8b8,Bb8a8][%mdl 32]} 17. Bd2 Kb8 18. b4 (18. a5 $11) 18... Bxb4 $17 19. Rfb1 Bxc3 20. Bxc3 Ka8 $36 {[%mdl 2048] Black is really pushing.} 21. Bd2 Nc5 {[%cal Rf6e4]} 22. exd5 cxd5 ({Resist} 22... Qxd5 23. Rd1 Nce4 24. Nxe4 Qxe4 25. Qxe4 Nxe4 {[#]} 26. Bxh6 $1 $11 {[%mdl 512]}) 23. Rb5 Rc8 24. Rab1 Rc6 ({Much worse is} 24... b6 $6 25. a5 Nfd7 26. axb6 Nxb6 27. Be3 $11) 25. Qe3 (25. a5 $17 {was worth a try.}) 25... Nfd7 ({Black should play} 25... Nxa4 $19 26. Qa3 (26. Rxb7 $2 Nb6 27. R7xb6 Rxb6 $19) 26... Nb6) 26. Qa3 Rhc8 27. h5 (27. a5 $17) 27... a6 28. R5b4 Nb6 29. Bc1 Nc4 30. Rxc4 dxc4 {[%cal Bd5c4,Bc4c3][%mdl 32]} 31. a5 Qd7 {Strongly threatening ...Qd1+.} 32. Be3 Ne6 33. Ne4 $2 (33. Qc3 {keeps fighting.}) 33... Nd4 $19 34. Qa4 c3 35. Nc5 Qd5 36. Nd3 (36. Bxd4 $142 Qxd4 37. Qxd4 exd4 38. Nd3) 36... Rc4 37. Qa2 {[#]} Nf3+ $1 38. gxf3 gxf3 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.18"]
[Round "2"]
[White "Granda Zuniga, Julio E"]
[Black "Hoffman, Alejandro"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2658"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,143,0,0,0,0,0,47,-75,39,-144,22,-156,14,0,0,0,13,-208,-126,-454,-10,-20,12,22,72,68,91,65,48,69,83,66,111,98,123,139,105,102,143,144,163,144,144,138,139,146,154,158,151,144,141,60,39,0,53,63,53,64,76,68,83,19,209,198,185,112,112,21,45,0,79,0,519,436,344,98,99,99,225,225,232,189,174,174,210,173,160,160,143,145,134,132,129,118,122,0,100,0,0,0,0,0,0,0,1039,810,560,0,0,0,1524,1537,1486,1486,1464,1450,1450,1421,1421,1412,1412,1330,1330,1310]} 1. Nf3 g6 2. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} Bg7 3. e4 c5 4. d5 d6 5. h3 Nf6 6. Nc3 O-O 7. a4 e6 8. Be2 {A43: Schmid Benoni} exd5 9. exd5 Na6 10. Nd2 Nb4 11. Nc4 Re8 {LiveBook: 3 Games} 12. Ne3 $146 (12. O-O Bf5 13. Ne3 Rxe3 14. Bxe3 Nxc2 15. g4 Nxe3 16. fxe3 {0-1 (49) Roktim,B (2383)-Neelotpal,D (2512) Hyderabad 2006}) 12... b6 13. O-O Ba6 14. Bf3 (14. Nb5 $14 {stays ahead.}) 14... Bf8 (14... Bxf1 $17 15. Kxf1 Bf8) 15. b3 $2 (15. Nb5 $14 {keeps the upper hand.} Bb7 16. c3) 15... Nd7 $2 ({Black should play} 15... Bxf1 $17 16. Nxf1 Nd7) 16. Bb2 $2 (16. Nb5 $1 $11 Bg7 17. Ra3) 16... Ne5 $2 (16... Bxf1 $17 17. Qxf1 Bg7) 17. Be2 Bg7 18. Rb1 f5 19. f4 $2 (19. Nb5 $11 {and White stays safe.}) 19... Nf7 20. Nb5 $2 {[%mdl 8192]} (20. Nc4 $17 {is more resistant.}) 20... Bb7 $2 (20... Rxe3 $19 21. Bxg7 Qe7) 21. Bxg7 $1 $11 Kxg7 22. Rf3 a6 23. Nc3 Qf6 24. Qd2 Re7 25. Rd1 Rae8 26. Bf1 h5 27. Nc4 g5 28. fxg5 Nxg5 29. Rf4 Ne4 30. Nxe4 Rxe4 31. Nxb6 {Hoping for c3.} Rxf4 32. Qxf4 {Black must now prevent c3!} Nxc2 33. Nc4 {[%cal Bb6c4,Bc4a5,Ba5c6][%mdl 32]} Rd8 34. Na5 Rd7 35. Nc6 $1 (35. Nxb7 $6 Rxb7 36. Qg3+ (36. Bxa6 Rxb3 37. Kh1 Ne3 $11) 36... Qg6 $11) 35... Rc7 36. Qd2 ({White should try} 36. Rd2 $16 Bxc6 37. Rxc2 (37. dxc6 Nd4 $16)) 36... Bxc6 $14 37. dxc6 Nd4 (37... Qd4+ $1 $11 38. Qxd4+ Nxd4) 38. Bxa6 {Strongly threatening b4.} Rxc6 39. Bb5 Rc7 40. Bc4 Re7 41. Re1 ({Better is} 41. Kh1 $16) 41... Re5 $2 (41... d5 $11 42. Rxe7+ (42. Bxd5 $2 Rd7 43. Qd1 Rxd5 $19) 42... Qxe7) 42. Rxe5 Qxe5 43. Qg5+ (43. a5 $1 $18) 43... Kf8 $16 44. Qd8+ (44. Qxh5 $6 d5 $11) (44. a5 $1 $16) 44... Kg7 $11 45. Qg5+ Kf8 46. Qg6 ({Much worse is} 46. Qxh5 d5 47. Bf1 (47. Qh6+ Kf7 48. Qh7+ Kf8 $11) 47... Nxb3 $11) (46. a5 $16) 46... Ne2+ $2 {[%mdl 8192]} (46... d5 $11 {and Black is okay.} 47. Bb5 Nxb3) 47. Bxe2 Qxe2 48. Qxf5+ $2 $18 {[%mdl 4096] Endgame KQ-KQ} (48. Qxd6+ $18 Ke8 49. Qxc5) 48... Ke7 $16 49. Kh2 Qd2 {[#]} (49... Kd8 $16) 50. h4 $1 $18 ({Less strong is} 50. Qxh5 Qf4+ 51. Kg1 Qe3+ 52. Kf1 Qxb3 $16) 50... d5 51. Qe5+ Kd7 52. a5 Kc6 53. Qf6+ Kb7 54. Qb6+ Ka8 55. Qxc5 Qf4+ 56. Kg1 d4 57. Qc6+ Ka7 58. Qc5+ Ka8 59. Qxh5 (59. Qc2 $16) 59... Qe3+ 60. Kh2 {Qd5+ is the strong threat.} Qf4+ $1 61. Kh3 Qe3+ 62. g3 d3 $2 {[%mdl 8192]} (62... Qe4 $11 63. Qg5 d3) 63. Qd5+ Ka7 64. Qd7+ $2 (64. b4 $18 Qe2 65. Qd4+ Kb8 66. b5) 64... Ka6 $11 65. b4 {[%cal Bb3b4,Bb4b5][%mdl 32] aiming for Qc6+.} d2 $2 {[%mdl 8192] [#]} (65... Qe4 $11) 66. Qc6+ $1 $18 {White is clearly winning.} Ka7 67. b5 {White wants to mate with Qc7+.} d1=Q 68. Qc7+ Ka8 69. Qc8+ Ka7 70. b6+ Qxb6 71. axb6+ Kxb6 72. Qe6+ 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.18"]
[Round "2"]
[White "Mareco, Sandro"]
[Black "Pichot, Alan"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2655"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,39,7,0,-8,-9,-4,0,0,0,0,0,-4,-6,-8,17,0]} 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. Bf4 Bd6 {E05: Open Catalan: 5 Nf3 Be7} 11. Qc1 a5 12. Nc3 Na6 13. Bg5 (13. Bd2 Nb4 14. Qb1 Bxf3 15. Bxf3 c6 16. Rd1 Qe7 17. Ne4 Nxe4 18. Qxe4 {1-0 (44) Ding,L (2760)-Aronian,L (2785) Sharjah 2017}) 13... h6 {LiveBook: 6 Games. The position is equal.} 14. Bxf6 Qxf6 15. Rd1 Nb4 16. e4 {[#] e5 is the strong threat.} e5 17. dxe5 Bxe5 18. Nxe5 Qxe5 19. Nd5 $146 Rfd8 {[%cal Rc6d5]} 20. f4 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.18"]
[Round "2"]
[White "Slipak, Sergio"]
[Black "Sosa, Tomas"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2465"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,81,2,7,8,86,73,66,15,103,74,76,66,109,100,100,109,107,103,105,112,122,85,98,107,99,82,93,70,107,54,39,64,146,99,288,291,300,287,469,297,275,310,425,419,520,442,559,497,533,535,516,528,542,531,506,481,545,533,472,0,0,0,0,0,133,134,321,0,0,0,0,-11]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 Nfd7 5. d4 dxc4 6. Bxc4 c5 $1 7. Nf3 {Black must now prevent d5. A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} (7. d5 Nxe5 8. Bb5+ Bd7 9. dxe6 fxe6 10. Qh5+ Nf7 11. Nf3 Bxb5 12. Nxb5 Qa5+ 13. Nc3 Qa6 14. Ng5 g6 15. Qf3 Nxg5 16. Bxg5 Bg7 17. O-O-O Bd4 18. Rxd4 cxd4 19. Qf6 {1-0 (19) Goganov,A (2597)-Sjodahl,P (2404) Stockholm 2015}) 7... Nb6 (7... Nc6 $1 $11 {keeps the balance.}) 8. Bb5+ Bd7 9. O-O (9. Bg5 $14 Be7 10. dxc5 Bxg5 11. cxb6) 9... c4 $146 (9... Bxb5 $11 {remains equal.} 10. Nxb5 Nd5) (9... a6 10. Bxd7+ Qxd7 11. dxc5 Bxc5 12. Ne4 Be7 13. Qb3 Nd5 14. Rd1 Nc6 {1-0 (62) Nadenau,O (2240)-Hund,J Bad Woerishofen 1991}) 10. Bg5 Be7 11. Bxd7+ N8xd7 12. Bxe7 Qxe7 13. Ne4 O-O 14. Rc1 f6 15. exf6 gxf6 16. Re1 Rac8 17. b3 Kh8 18. bxc4 Nxc4 19. Qb3 Ncb6 20. a4 ({White should play} 20. g3 $16) 20... Rxc1 $1 $14 21. Rxc1 a5 (21... Nd5 $14) 22. h3 {Hoping for Rc7.} Rg8 $2 {[#]} (22... Rb8 $16) 23. Rc7 $1 $18 Nd5 24. Rxb7 {Threatens to win with Qb5.} Nf4 $2 (24... Rg7 25. Qb5 Qb4 26. Qxb4 (26. Rxd7 Rxd7 27. Qxd7 Qb1+ 28. Kh2 Qxe4 29. Qd8+ Kg7 30. Qxa5 Qf4+ 31. Kh1 Qc1+ 32. Ng1 Qc6 $18) 26... Nxb4) 25. Ng3 Qd6 26. Qb5 Rg7 27. Qxa5 h6 28. Qd2 Kh7 29. a5 Qc6 {intending ...Nxh3+.} 30. Rxd7 ({Not} 30. Qxf4 Qxb7 31. Qd6 Qd5 $16) 30... Nxh3+ 31. gxh3 Qxd7 32. Qf4 Qc7 33. Qxf6 Rf7 34. Qxe6 Qf4 35. Qe4+ $2 {[#]} (35. Ne5 {is a self mate.} Qxf2+ 36. Kh1 Qe1+ 37. Nf1 Rxf1+ 38. Kh2 Qf2#) (35. Nh4 $18 Rf6 36. Qd7+ Rf7 37. Qe8) 35... Qxe4 $11 36. Nxe4 Rxf3 {KR-KN} 37. a6 Ra3 (37... Kg6 $11) 38. Nc5 $16 Kg6 $2 (38... h5 $16) 39. Kg2 $2 (39. d5 $18) 39... Kf6 $11 40. f3 Ke7 41. Kg3 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.18"]
[Round "2"]
[White "Garcia Palermo, Carlos"]
[Black "Bachmann, Axel"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2450"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,110,33,61,62,71,42,97,-18,28,-33,66,69,91,93,85,78,89,84,77,19,29,0,0,-43,-48,-76,-63,-39,-6,-104,-87,-118,-106,-110,-100,-170,-120,-247,-250,-229,-209,-195,-142,-686,-684,-680,-680,-669,-668,-5143,-25,-25,0,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-22,-24,-22,-22,0]} 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 Bg4 7. Be3 Nfd7 8. Ng1 Bxe2 9. Ngxe2 c5 10. d5 Na6 11. O-O {E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4} Nc7 12. a4 (12. Qd2 Re8 13. f4 a6 14. e5 dxe5 15. f5 b5 16. b3 bxc4 17. bxc4 {1-0 (54) Iturrizaga Bonelli,E (2646)-Chadaev,N (2582) Moscow 2013}) 12... b6 {LiveBook: 4 Games} 13. f4 {White is slightly better.} a6 14. Rb1 $146 (14. e5 b5 15. b3 bxc4 16. bxc4 Rb8 17. Ne4 Rb4 18. Qd3 f5 {1-0 (41) Nezad,H (2427)-Seeman,T (2407) Baku 2016}) 14... Ne8 (14... Rb8 $14) 15. b4 (15. b3 $16) 15... Nef6 16. h3 (16. b5 $11) 16... Qc7 (16... cxb4 $15 17. Rxb4 Qc8) 17. b5 $14 Rfe8 18. Qd3 e6 19. dxe6 Rxe6 20. f5 Ree8 21. fxg6 (21. Bg5 $16) 21... hxg6 $11 22. Nf4 ({Don't play} 22. Nd5 Nxd5 23. Qxd5 (23. exd5 $2 axb5 24. Rxb5 Ne5 $19) 23... Nf6 $17) (22. Bf4 $5 {with more complications.} axb5 23. Nxb5 Qc6 24. Nec3 Nxe4 25. Nd5) 22... axb5 23. cxb5 (23. Nxb5 $5 {seems wilder.} Qd8 24. Rbe1 Rxe4 25. Nd5 Re5 26. Ndc3) 23... Qb7 {[%cal Rf6e4]} 24. Qxd6 Nxe4 25. Nxe4 Rxe4 26. Bc1 (26. Nd5 $11 Re6 27. Ne7+ Kh8 28. Qd5 Qxd5 29. Nxd5) 26... Raxa4 $17 {...Ne5 is the strong threat.} 27. Qc6 Ra7 (27... Bd4+ 28. Kh1 Ra7 29. Nxg6 $15) 28. Bb2 Ne5 $36 {[%mdl 2048] Keeping White busy.} 29. Bxe5 (29. Qe8+ $17 Kh7 30. Qd8) 29... Rxe5 30. Rfd1 (30. Rbd1 $17 {is a better defense.}) 30... Qb8 $19 31. Rd6 Bf8 32. Rf6 Rae7 (32... Qd8 $19 {White must now prevent ...Qd4+.} 33. Nxg6 (33. Qxb6 $2 Qd4+ 34. Kh1 Rae7 $19) 33... fxg6 34. Qxb6 Qxb6 35. Rxb6 Kg7) 33. Qxb6 $2 {[%mdl 8192]} (33. Nd5 $17 R7e6 34. Qd7 Rxf6 35. Nxf6+ Kg7 36. Rf1) 33... Re1+ 34. Rxe1 Rxe1+ 35. Kf2 Qe5 {[%csl Ge1][%cal Re5e3] [#]} 36. Kf3 Bg7 $2 (36... g5 $19 37. Rxf7 Rf1+ 38. Kg4 Rxf4+ 39. Rxf4 Qxf4+ 40. Kh5 Qh4+ 41. Kg6 Qh6+ 42. Kf5 Qxb6 43. h4 gxh4 44. Kf4 Qxb5 45. Ke3 Bh6+ 46. Ke4 Kf7 47. Kd5 Ke7 48. Ke4 Qb3 49. g4 hxg3 50. Kf5 Qe6#) 37. Qd8+ $11 Bf8 {And now ...Qc3+ would win.} 38. Qxf8+ Kxf8 39. Nxg6+ $1 Kg7 {[#] ( -> ...Re3+)} 40. Nxe5 Kxf6 {[%mdl 4096] Endgame KR-KN} 41. Nd7+ Ke7 42. Nxc5 Re5 43. Ne4 Rxb5 44. Kf4 f5 45. Nc3 Ra5 46. Ne2 Kf6 47. g4 Ra4+ 48. Kf3 fxg4+ 49. hxg4 Kg5 50. Ke3 Rxg4 51. Nd4 Kf6 52. Nf3 Ra4 53. Nd4 Ke5 54. Nf3+ Kf5 55. Nd4+ Rxd4 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.18"]
[Round "2"]
[White "Darcyl, Tomas"]
[Black "Flores, Diego"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2405"]
[BlackElo "2568"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,100,-7,-7,-14,-14,-28,-22,-26,-10,-28,-19,-53,-47,-58,-48,-42,-57,-47,-46,-61,-47,-94,-77,-102,-76,-156,-124,-150,-132,-135,-132,-152,-143,-189,-186,-266,-258,-302,-281,-282,-289,-267,-254,-310,-434,-374,-241,-257,-247,-233,-243,-237,-239,-207,-212,-293,-268,-301,-290,-347,-268,-292,-268,-345,-353,-333,-350,-345,-378,-367,-361,-397,-360,-29978,-29979,-29978,-29979,-29979,-5850,-29979,-29979,-29985,-29986]} 1. Nf3 c5 2. b3 d6 3. Bb2 e5 4. c4 Nc6 5. e3 g6 6. Nc3 Bg7 7. d3 Nge7 {A04: Unusual lines after 1 Nf3 and King's Indian Attack} 8. Be2 O-O 9. O-O h6 10. a3 Be6 {LiveBook: 3 Games} 11. Nd2 (11. Rb1 a5 12. Nb5 d5 13. cxd5 Nxd5 14. Nd2 Qb6 15. a4 Qd8 16. Rc1 Qe7 17. Qc2 b6 18. Nc4 Rab8 19. Qb1 Ndb4 20. Rfd1 {½-½ (20) Lenic,L (2630)-Lalic,B (2476) Bol 2013}) 11... f5 12. b4 $146 (12. Bf3 Qd7 13. Bd5 Rab8 14. Qf3 a6 15. Bxe6+ Qxe6 16. Rab1 b5 17. cxb5 axb5 18. Nxb5 Rxb5 {0-1 (18) Bendig,F (2441)-Monacell,J (2463) IECG email 2004}) 12... cxb4 13. axb4 Nxb4 14. Ba3 Nec6 15. Qb3 a5 16. Rfb1 Rf7 17. Bxb4 Nxb4 18. Na2 Nc6 19. Nc3 Ra6 20. Bf1 Kh7 21. g3 Nb4 22. Qa4 ({White should play} 22. Na2) 22... d5 23. cxd5 Nxd5 24. Nxd5 Bxd5 ({Of course not} 24... Qxd5 $6 25. Rb5 Qd6 26. Rxa5 $11 (26. Nc4 Qc7 27. Rxa5 Rxa5 28. Nxa5 Rf8 $15)) 25. e4 Bc6 26. Qc4 Qf6 27. Rb2 (27. exf5 $142 Qxf5 28. Ne4 Bxe4 29. dxe4 Qxf2+ 30. Kh1) 27... a4 $19 28. Nb1 fxe4 29. dxe4 {[#]} Rb6 $1 {[%mdl 512]} ({Don't play} 29... b5 30. Qc2 $17) 30. Rd2 (30. Rxb6 Qxf2+) 30... Rb3 31. Qe2 Bf8 32. Rc2 Qf3 (32... Bb5 $2 33. Qd1 $19) 33. Nd2 Qxe2 34. Bxe2 {Threatening Bc4.} Rb4 35. f3 Rd7 36. Kf2 Kg7 37. Nc4 Bc5+ 38. Ke1 Bd4 39. Rd1 Bb5 40. f4 Bxc4 41. Rxc4 Rxc4 42. Bxc4 {[%mdl 4096] Endgame KRB-KRB} Rc7 43. Bd5 b5 {[%cal Bb7b5,Bb5b4,Bb4b3][%mdl 32]} 44. Kd2 b4 45. fxe5 Bxe5 46. Rc1 $2 (46. Rb1 $19) 46... Rxc1 47. Kxc1 {[#]} b3 $1 48. Kd2 Kf6 49. Ke3 Ke7 50. Kd3 Kd6 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.18"]
[Round "2"]
[White "Van Riemsdijk, Herman C"]
[Black "Morovic Fernandez, Ivan"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2318"]
[BlackElo "2527"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 31,104,0,0,0,0,0,14,0,8,7,48,48,68,62,65,67,68,61,92,15,28,0,0,-36,-22,-37,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,4,0,0,0,0,-35,0,0,0,0,0,0,0,0,0,0,0,0,6,6,8,6,6,0,6]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bc4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. Be3 Bh5 11. h3 exd4 12. cxd4 d5 13. e5 Ne4 14. Nc3 Nxc3 {C91: Closed Ruy Lopez: 7...d6 8 c3 0-0 9 d4} 15. bxc3 Na5 16. Bc2 Nc4 {LiveBook: 44 Games} (16... Qd7 17. g4 Bg6 18. Bg5 Nc4 19. Bf5 Bxf5 20. Bxe7 Bc2 21. Qxc2 Qxe7 22. Nd2 {½-½ (61) Shirov,A (2712)-Inarkiev,E (2660) Poikovsky 2015}) 17. Qd3 {[%csl Gc2][%cal Rd3h7] [#]} Bg6 18. Qd1 a5 19. Bxg6 fxg6 20. Nd2 $146 (20. Re2 b4 21. Rc1 Ra6 22. Nd2 Nxe3 23. Rxe3 {½-½ (38) Amos,B (2420)-Rubinraut,S Haifa 1976}) 20... Nxe3 21. Rxe3 c5 22. dxc5 $1 Bxc5 23. Re2 $1 Rc8 24. Nf3 Rf4 25. Qd2 (25. Rd2 $16) 25... Rc4 $11 26. Rd1 Rxc3 27. Qxd5+ Qxd5 28. Rxd5 Rc1+ 29. Kh2 b4 30. e6 Re8 31. Ne5 Bb6 32. Nd7 Bc7+ 33. g3 Rc6 34. Rc5 Rxc5 35. Nxc5 {[%mdl 4096] Endgame KRB-KRN} Kf8 36. Rd2 $1 Re7 37. Kg2 Ke8 38. Rd5 Bb6 39. Na4 Bc7 40. Nc5 Bb6 41. Na4 Bd8 42. Nc5 Ra7 43. Na4 Ra6 44. Nc5 {The position is equal.} Rb6 {[#] Strongly threatening ...Rb5.} 45. Kf3 Be7 46. Na4 $1 {[%cal Ra4b6]} Rxe6 47. Rxa5 Rf6+ 48. Ke3 Rc6 49. Nb2 Bc5+ 50. Ke2 Re6+ 51. Kf1 Be7 52. Nd3 Rb6 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.19"]
[Round "3"]
[White "Bachmann, Axel"]
[Black "Darcyl, Tomas"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2405"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,111,3,9,6,6,5,14,12,11,3,19,15,25,17,16,12,27,32,46,38,74,76,88,85,74,83,92,89,96,97,119,80,89,83,85,73,113,40,90,110,206,199,192,206,206,199,192,151,196,174,232,240,247,222,242,157,235,147,811,272,342,314,358,347,350,332,272,311,475,471,595,439,709,729,725,705,911,786,2158,1886,1916,1776,2238,2141,2179,2167,5306,5297,29980,29981,29981,29982,29982,29983,29983,29984,29984,29985,29986,29987]} 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. e4 e6 6. Nge2 Nge7 7. d3 d6 {LiveBook: 248 Games} 8. Rb1 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} (8. O-O O-O 9. Rb1 b6 10. a3 Bb7 11. b4 Qd7 12. Bg5 h6 13. Be3 Nd4 14. f4 f5 15. Qd2 Kh7 16. Rbe1 Rae8 17. Bf2 Nec6 18. b5 Nxe2+ 19. Nxe2 Nd4 20. Nxd4 cxd4 21. exf5 gxf5 22. Bxb7 Qxb7 {0-1 (30) Dominguez Perez,L (2732)-Wojtaszek,R (2727) Huaian 2016}) 8... b6 9. Be3 e5 10. a3 $146 {The position is equal.} (10. O-O O-O 11. f4 Rb8 12. Qd2 exf4 13. Nxf4 Ne5 14. h3 a6 15. Ncd5 Bb7 {½-½ (53) Nyshanbayev,B (1993)-Ibrayev,N (2407) Pavlodar 2010}) 10... Nd4 11. O-O Rb8 12. b4 Bd7 13. Qd2 O-O 14. b5 f5 15. exf5 gxf5 16. Bg5 {Threatens to win with Nxd4.} Qe8 17. Nxd4 cxd4 18. Bxe7 Qxe7 19. Nd5 Qd8 20. f4 Be6 21. Nb4 $36 {[%mdl 2048] White has strong initiative.} Qd7 22. Bc6 Qf7 23. Rbe1 Kh8 24. a4 Rg8 {[#]} 25. Qg2 (25. a5 $1 $16 {[%mdl 512]}) 25... Qg6 26. Kh1 Bf6 {[#]} (26... Qh6 $16) 27. Bd5 $1 $18 {[%cal Rd5e6]} Bxd5 28. Qxd5 (28. cxd5 exf4 29. Rxf4 Be5 $11) 28... Rbe8 29. Nc6 (29. Qxd6 $6 e4 30. Kg1 (30. Nd5 Bg7 31. Qb4 Bf8 $16) 30... Rgf8 $16) 29... exf4 30. Rxe8 (30. Qxd6 fxg3 31. Qxg3 Qxg3 32. hxg3 Rxe1 33. Rxe1 Rxg3 $11) (30. gxf4 $2 Re4 31. Qxg8+ Qxg8 $19) 30... Rxe8 31. Rxf4 (31. Nxd4 $6 fxg3 32. Nxf5 gxh2 33. Nxd6 Rf8 $14) 31... Re1+ (31... Be5 $142 32. Rf1 f4) 32. Kg2 Be5 33. Nxe5 dxe5 {[%mdl 4096] Endgame KQR-KQR} 34. Qd8+ Kg7 (34... Qg8 $16 35. Qxg8+ Kxg8 36. Rxf5 Re2+ 37. Kf3 Re3+ 38. Kf2 Rxd3) 35. Qc7+ Kf8 $2 {[%mdl 8192]} (35... Qf7 $16 36. Qxf7+ Kxf7 37. Rxf5+ Ke6) 36. Qb8+ $2 (36. Qc8+ Ke7 37. Rxf5) 36... Kg7 37. Qxa7+ Qf7 38. Qxf7+ (38. Qxb6 exf4 39. Qxd4+ Kg6 40. Qd6+ Qf6 41. Qxf6+ Kxf6 $19) 38... Kxf7 39. Rxf5+ {KR-KR} Ke6 40. Rh5 Re2+ (40... e4 $142 41. Rh6+ (41. Rxh7 $2 exd3 42. Rh6+ Ke5 $19) 41... Kf5 42. dxe4+ (42. Rxb6 $2 exd3 43. g4+ Ke5 $19) (42. Rxh7 Re2+ 43. Kf1 exd3 $11) 42... Ke5 43. Rxh7 (43. Rxb6 d3 44. Rb8 d2 45. Re8+ Kf6 46. e5+ Kf5 47. g4+ Ke4 $17) 43... Ra1 44. Re7+ Kf6) 41. Kf1 Rd2 42. Rh6+ Kf5 (42... Kd7 $142 43. Rxb6 Rxd3) 43. Rxb6 Rxd3 44. Rb8 Rb3 45. c5 Ke4 46. c6 Rc3 47. Kg2 d3 48. Rd8 Rc2+ 49. Kh3 Rc4 50. b6 Rd4 51. c7 {White mates.} d2 52. Rxd4+ exd4 53. c8=Q d1=Q 54. Qe6+ Kd3 55. Qf5+ Kc3 56. b7 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.19"]
[Round "3"]
[White "Flores, Diego"]
[Black "Granda Zuniga, Julio E"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2658"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,0,-24,-21,-16,0,8,0,7,0,0,0,0,33,24,27,22,33,14,8,3,2,0,0,0,0,-8,0,0,13,11,12,8,11,8,10,0,7,0,19,13,49,0,23,9,9,9,13,0,0,0,0,-23,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 Nc6 {[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 7. Bd3 e5 8. Ne2 {LiveBook: 3 Games. E40: Nimzo-Indian: Rubinstein (4 e3): Unusual Black 4th moves} e4 9. Bc2 Na5 10. Ng3 $1 Nxc4 11. Nxe4 Nxe4 12. Bxe4 d5 13. Bd3 b5 $146 (13... Nd6 14. Qc2 g6 15. O-O Bf5 16. Bxf5 Nxf5 {0-1 (77) Shengelia,D (2504)-Campos Moreno,J (2446) Illes Medes 2007}) 14. a4 c6 15. O-O Be6 16. f3 a5 17. axb5 (17. Qb3 $5 {creates asymmetry.} Qd7 18. Rf2 h6 19. Qb1 Rfe8 20. Rfa2) 17... cxb5 18. Bxc4 bxc4 19. e4 Qd7 20. Bf4 Ra6 21. Qc2 Qb7 22. Rfb1 Rb6 23. Bd6 Ra8 24. Rxb6 Qxb6 25. Bc5 Qc7 26. e5 h5 27. h3 h4 28. Rb1 Qd8 29. Qc1 Rb8 30. Rxb8 Qxb8 31. Qg5 Qb1+ 32. Kh2 Qe1 33. Qd8+ Kh7 34. Qg5 {The position is equal.} (34. Qxa5 Qg3+ 35. Kg1 Qe1+ 36. Kh2 Qg3+ 37. Kg1 Bxh3 $17) 34... Kg8 35. Qd8+ Kh7 {[#] White must now prevent ...Qg3+.} 36. Qg5 ({Don't play} 36. Qxa5 {[#]} Bxh3 $1 {[%mdl 512]} 37. Qa2 Bf5 $17) 36... Kg8 37. Qd8+ Kh7 {Hoping for ...Qg3+.} 38. Qg5 ({Of course not} 38. Qxa5 Qg3+ 39. Kg1 Bxh3 $17) 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.19"]
[Round "3"]
[White "Pichot, Alan"]
[Black "Van Riemsdijk, Herman C"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2556"]
[BlackElo "2318"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,87,164,19,16,6,50,60,52,37,106,48,81,55,56,64,60,58,89,85,85,85,85,89,74,52,112,65,95,29,31,35,79,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,-6,-6,-6,-6,-8,-6,-6,-6,-6]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+ 11. Ke2 f6 12. exf6 ({White should try} 12. cxd5 $18 Ba6+ 13. Kf3 cxd5 14. Nd6+ Bxd6 15. exd6) 12... Nxf6 $11 {B45: Sicilian Four Knights} 13. Be3 Qb8 (13... Qd8 14. Nd6+ Bxd6 15. Qxd6 Bb7 16. Rd1 Rc8 17. g4 c5 18. Rg1 Rf8 19. f5 Qb6 20. fxe6 dxe6 {1-0 (40) Karjakin,S (2762)-Yu,Y (2721) Baku 2015}) 14. Nxf6+ gxf6 {White is slightly better.} 15. Kf2 {Black must now prevent Qh5+.} Bd6 {[#]} (15... O-O $1 $14) 16. Qd2 (16. Qg4 $1 $16) 16... Qb4 17. Rd1 $146 (17. Qxb4 Bxb4 18. c5 Ba5 19. Bc4 Bc7 20. Rad1 {½-½ (42) Petenyi,T (2347)-Choisy,M (2203) Merlimont 2011}) 17... Qxd2+ 18. Rxd2 Bb4 19. Rc2 d6 20. a3 Bc5 21. Bxc5 dxc5 22. Be2 Ke7 23. Bf3 Bd7 (23... Rd8 $14) 24. Rd1 Rhb8 25. f5 (25. Re2 $16) 25... e5 26. Rcd2 Bxf5 {[#]} 27. Bxc6 (27. g4 $1 $16 {[%cal Rg4f5]} e4 28. gxf5 exf3 29. Re1+ (29. Kxf3 Rd8 $14) 29... Kf7 30. Re6 (30. Kxf3 Rd8 31. Rxd8 Rxd8 $14)) 27... Bg4 {The position is equal.} 28. Bf3 Bxf3 29. Kxf3 {[%mdl 4096] Endgame KRR-KRR} Rb7 30. g4 Rg8 31. h3 h5 32. b4 hxg4+ 33. hxg4 cxb4 34. axb4 Rc8 35. Rh1 {Hoping for Rh7+.} Ke6 36. c5 {[%cal Bc4c5,Bc5c6][%mdl 32]} Rxb4 37. Rd6+ Kf7 38. c6 Rc4 39. Rh6 Rf4+ 40. Ke3 Ke7 41. Rd7+ Ke6 42. g5 Rxc6 43. Rxa7 Kf5 {...Re4+ is the strong threat.} 44. Rxf6+ 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.19"]
[Round "3"]
[White "Morovic Fernandez, Ivan"]
[Black "Slipak, Sergio"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2527"]
[BlackElo "2465"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,57,-29,-35,-37,-44,-47,-33,-31,0,-23,0,0,0,0,4,0,0,0,0,7,-4,0,28,50,273,277,256,264,274,249,791,791,775,666,1939,1936,1867,1876,2472,2045,29987,29988]} 1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. dxc5 e6 5. b4 {D04: Colle System} (5. a3 Bxc5 6. b4 Be7 7. Bb2 O-O 8. Nbd2 b6 9. Bd3 Nbd7 10. O-O a5 11. c3 Bb7 12. Qe2 Qc7 {½-½ (21) Shimanov,A (2550)-Alekseev,E (2688) Olginka 2011}) 5... a5 6. c3 axb4 7. cxb4 b6 8. Bb5+ Bd7 9. Bxd7+ Nbxd7 {LiveBook: 20 Games} 10. a4 bxc5 11. b5 Bd6 12. O-O $146 (12. Bb2 O-O {½-½ (25) Anhalt,H (2449)-Walczak,P (2470) ICCF email 2011}) 12... O-O 13. Bb2 Qc7 14. Nbd2 c4 15. Qc2 Nc5 16. h3 e5 17. Rfb1 Nd3 18. Ba3 Bxa3 19. Rxa3 Qa5 20. b6 {[%cal Bb5b6,Bb6b7][%mdl 32]} Rfb8 $2 (20... Nd7 $1 $14) 21. b7 $18 Ra7 22. Rxd3 {Hoping for Nxc4!} e4 23. Rc3 {[%cal Bd3c3,Bc3c4,Bc4c8][%mdl 32]} exf3 $2 {[#]} (23... Rbxb7 24. Rxb7 Rxb7) 24. Nxc4 $1 {[%mdl 512]} ({Inferior is} 24. Nxf3 Rbxb7 25. Ra3 Ne4 $15) ({Stronger than} 24. Rb5 Qc7 $11) 24... dxc4 25. Rxc4 {Black must now prevent Rc8+.} g6 26. Rc8+ Kg7 27. Rxb8 Qg5 28. g3 Qh5 29. Qc8 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.19"]
[Round "3"]
[White "Hoffman, Alejandro"]
[Black "Mareco, Sandro"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2488"]
[BlackElo "2655"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,155,-17,22,-16,-4,-4,0,-10,0,0,0,8,8,6,3,-8,0,0,1,8,9,11,14,0,39,28,44,38,46,18,41,19,97,111,163,154,218,156,154,152,155,159,166,138,167,142,207,212,224,194,327,319,235,197,220,228,229,159,170,147,137,-81,160,-66,222,210,216,137,162,168,241,189,196,154,252,245,364,270,360,222,217,265,240,258,371,341,300,301,494,485,490,451,498,495,649,314,312,294,318,279,306,180,361,332,408,427,426,413,786,784,742,678,1319,1035,1934,503,811,205,329,137,320,137,137,137,137,137,137,137,137,137,137,137,137,137,137,137,569,472,579,579,1414,1364,1179,1064]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Qc2 Bb7 6. a3 Bxc3+ 7. Qxc3 d6 8. Bg5 {E21: Nimzo-Indian: 4 Nf3} Nbd7 9. Nd2 (9. e3 O-O 10. Nd2 c5 11. dxc5 bxc5 12. Bd3 h6 13. Bh4 a5 14. O-O Qb6 15. e4 d5 16. cxd5 exd5 17. Rfe1 dxe4 18. Nxe4 Nxe4 19. Bxe4 Bxe4 20. Rxe4 {½-½ (51) Mamedyarov,S (2736)-Korobov,A (2700) Skopje 2015}) 9... h6 10. Bh4 {The position is equal.} c5 11. dxc5 bxc5 12. e3 $146 (12. Qc2 Qc7 13. e3 Qc6 14. Bg3 O-O 15. Nf3 Ne4 16. Bd3 Nxg3 17. hxg3 {1-0 (31) Zelba,M-Opaska,I Ueberlingen 2000}) 12... O-O 13. f3 a5 14. b3 Qb6 15. Be2 d5 16. Bf2 Ba6 17. O-O Rfc8 18. Rab1 Qd8 19. Rfd1 Qe8 20. Bf1 Rc6 21. h3 Qc8 22. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Qb7 (22... Qb8 $11) 23. Qxa5 $16 dxc4 (23... Qb8 $16 {is a better defense.}) 24. bxc4 $18 (24. Nxc4 $6 Bxc4 25. bxc4 Qc8 $14) 24... Nb6 (24... Qa7 $16 25. Bd3 Rcc8) 25. Ra1 Qc7 26. Qc3 Bb7 27. a5 Nbd7 28. e4 Nh5 29. Nb3 Ne5 (29... Bc8 $16 {was called for.} 30. Rd2 Rb8) 30. Qe3 Ba6 31. Rac1 Rc8 (31... Nd7 $142 32. f4 e5) 32. f4 {[%cal Bf3f4,Bf4f5][%mdl 32]} Ng6 33. g3 {[%cal Bg2g3,Bg3g4][%mdl 32] And now e5 would win.} e5 {[%cal Re5f4]} 34. f5 Nf8 35. Bg2 Nf6 36. g4 N8d7 37. h4 $2 (37. Bf3 $16 {stays on course.}) 37... Rb8 $2 (37... Nxg4 $17 38. Qg3 Nxf2 39. Kxf2 (39. Qxf2 Rb8 40. Qe3 Nf6 $17) 39... Rb8) 38. Rc3 $2 (38. Bf3 $16) 38... Rd6 $2 {[%mdl 8192]} (38... Nxg4 $15 {stays ahead.} 39. Qd3 Nxf2 40. Kxf2 Nf6) 39. Rxd6 Qxd6 40. g5 hxg5 41. hxg5 (41. Rd3 $6 Qc6 $16) 41... Nh7 (41... Nh5 $142) 42. Bf3 ({Don't take} 42. Nxc5 $6 Nxc5 43. Qxc5 Qd1+ 44. Kh2 Nxg5 $16) 42... Qc6 43. Kg2 Rc8 (43... Rb4 $16 {was worth a try.} 44. g6 (44. Nxc5 Nxc5 45. Qxc5 Qxc5 46. Bxc5 Rb2+ 47. Kg3 Nxg5 $16) 44... fxg6 45. Nxc5 Nxc5) 44. Qd2 Qa4 (44... Qc7 $142 45. Kh2 Rd8) 45. Be3 Rb8 46. Nxc5 Nxc5 47. Bxc5 Qxa5 48. Be3 Qa1 (48... Rc8 {might work better.} 49. c5 Bb7) 49. Rc2 ({But not} 49. Rc1 Qb2 $18) 49... Qa4 50. c5 Bc4 $2 (50... Rc8 51. Rb2 Qa3) 51. Qc3 Ba6 {Black wants to play ...Rb3.} 52. Rb2 Rxb2+ 53. Qxb2 Qe8 {[#]} 54. Qb6 (54. g6 $142 $1 {[%mdl 512]}) 54... Bb5 55. Qd6 Bc6 56. Kg3 Nf8 57. Bd2 (57. Bc1 $142) 57... Nh7 $2 (57... Qd7 58. Kf2 Qxd6 59. cxd6 Nd7) 58. Kh4 f6 59. g6 Nf8 60. Qd3 Qa8 (60... Kh8 $142 61. Be3 Qd7) 61. Qc4+ Kh8 62. Kg3 Nd7 63. Be3 Qg8 64. Qc1 (64. Qc2 $142 {Threatening mate with Qh2+.} Qe8 65. Qh2+ Kg8 66. Qh7+ Kf8 67. Qh8+ Ke7 68. Qxg7+ Kd8 69. Qh7) 64... Qb3 (64... Qa2 $142 65. Qd1 Nf8) 65. Qh1+ (65. Be2 $142 {Intending Bc4 and mate.} Bxe4 66. c6 Bxc6 67. Bc4) 65... Kg8 66. Qh7+ Kf8 {[#]} 67. Qh8+ (67. Bh6 $1 $18 {[%cal Rh6g7] and the rest is easy.} Ke8 68. Qxg7) 67... Qg8 $16 68. Qxg8+ Kxg8 {[%mdl 4096] Endgame KBB-KBN} 69. Kf2 Kf8 70. Ke2 Ke7 71. Kd3 Bb5+ 72. Kc3 Bc6 73. Kc4 Ke8 74. Bd2 {Ba5 is the strong threat.} Kf8 $2 {[%mdl 8192] [#]} (74... Nb8 $16 {is a better chance.} 75. Bc1 Na6) 75. Ba5 $1 $18 {White is clearly winning.} Ke8 76. Bc7 Ke7 77. Bd6+ Kd8 78. Kd3 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.19"]
[Round "3"]
[White "Sosa, Tomas"]
[Black "Garcia Palermo, Carlos"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,62,-6,-85,-78,-127,-145,-149,-155,-179,-183,-258,-264,-240,-258,-422,-418,-417,-419,-392,-345,-312,-280,-527,-488,-474,-487,-458,-470,-539,-524,-526,-512,-833,-644,-697,-704,-848,-851,-835,-703,-899,-920,-978,-978,-1052,-1052]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nh3 Nf6 8. Nf4 Bh7 9. Bc4 e6 10. Qe2 (10. Nfh5 $11 {keeps the balance.}) 10... Qxd4 $17 {B18: Classical Caro-Kann: 4...Bf5 sidelines} (10... b5 $6 11. Bxe6 (11. Nxe6 fxe6 12. Bxe6 Qe7 $15) 11... fxe6 12. Nxe6 $11) (10... Na6 11. O-O Nc7 12. c3 Bd6 13. Nfh5 Nxh5 14. Nxh5 g6 15. Nf4 Qxh4 16. g3 Qe7 17. b4 Nd5 18. Qf3 {1-0 (63) Cruz,J (2438)-Magem Badals,J (2552) Barcelona 2015}) 11. Be3 $146 (11. Bxe6 fxe6 12. Nxe6 Qg4 13. Nc7+ Kd7 14. Nxa8 Qxe2+ 15. Kxe2 Bxc2 16. Be3 b6 17. a4 Bb4 18. a5 {1-0 (37) Niemann,H (2097)-Askin,M (1898) San Francisco 2014}) 11... Qxb2 12. O-O Qxc2 {Black is clearly better.} 13. Bd2 {[#]} Nbd7 $1 14. Nxe6 (14. Rac1 $142 Qa4 15. Bxe6 fxe6 16. Nxe6) 14... fxe6 $19 15. Qxe6+ Kd8 {[%cal Be8d8,Bd8c7,Bc7c8][%mdl 32]} 16. Rfd1 $2 (16. Ba5+ {was worth a try.} Kc8 17. Rac1) 16... Bc5 17. Rac1 Re8 18. Qh3 Qg6 {And now ...Qg4 would win.} 19. Bc3 {Bxf6+ is the strong threat.} Kc7 ({Resist} 19... Ng4 20. Bd4 Bxd4 21. Rxd4) 20. Ne2 $2 (20. Bxf6 Nxf6 21. Bd3) 20... Qg4 {Black is clearly winning.} 21. Qh2+ Kc8 ({Weaker is} 21... Kd8 22. Bd4 Kc8 23. Bxc5 Nxc5 24. Nd4 $19) 22. Nd4 Be4 ({But not} 22... Ne5 {[#]} 23. Be6+ $1 {[%mdl 512]} Rxe6 24. Nxe6 Qxe6 25. Bxe5 Bxf2+ 26. Kh1 $19) 23. Ba5 {[%csl Ga5][%cal Rh2c7] [#]} Bd6 $1 24. Qh1 (24. Qxd6 Qxg2#) 24... Bf4 25. Nb5 (25. Be2 $142 Qg6 26. Bd2) 25... Nb6 26. Bf1 Nbd5 27. Nd4 Bxc1 28. Rxc1 Kd7 29. f3 Bxf3 30. Nxf3 Re3 31. Rc4 Qg3 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.20"]
[Round "4"]
[White "Granda Zuniga, Julio E"]
[Black "Mareco, Sandro"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2658"]
[BlackElo "2655"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,80,0,15,5,25,22,25,26,27,25,26,23,17,17,31,8,16,0,31,-22,0,-16,0,-7,-26,-15,22,-14,0,-37,0,-132,-129,-130,-136,-471,-436,-653,-647,-650,-625,-644,-391,-377,-393,-388,-380,-633,-646,-637,-635,-690,-381,-592,-563,-805,-565,-645,-643,-568,-616,-630,-522,-616,-614,-622,-624,-609,-610]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 d6 6. Be2 {A28: English Opening: Four Knights Variation} (6. a3 Bxc3 7. Qxc3 e4 8. Nd4 Ne5 9. b4 O-O 10. Bb2 Re8 11. h3 c5 12. Nc2 b6 13. Be2 Ba6 {1-0 (83) Kovalenko,I (2684)-Hammer,J (2628) chess.com INT 2017}) 6... O-O 7. O-O Re8 {LiveBook: 3 Games} 8. d3 {The position is equal.} a5 9. b3 $146 (9. a3 Bc5 10. Rd1 Bf5 11. Ne4 Bxe4 12. dxe4 {½-½ (52) Beck,H (2285)-Slobodjan,R (2490) Budapest 1994}) 9... Bf5 10. Bb2 Ne7 11. Na4 {With the idea a3.} Ng6 12. Rfd1 Bc5 13. Nxc5 dxc5 14. Ne1 Qe7 15. Bf1 h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 16. f3 (16. Be2 $14) 16... Rad8 17. Qf2 b6 18. Nc2 h4 19. a3 Rd7 20. Rd2 Nh5 21. Re1 Qd8 22. g4 (22. b4 $11 {keeps the balance.}) 22... hxg3 $1 $17 23. hxg3 e4 (23... Bxd3 24. Red1 Bxc2 25. Rxd7 Bxd1 26. Rxd8 Rxd8 27. f4 $14 (27. g4 Nf6 $14)) 24. g4 $2 {[%mdl 8192]} (24. fxe4 Bxe4 25. Be2 Nf6 $11) (24. Qh2 $17 Nf6 25. Bxf6 (25. fxe4 $2 Nxe4 26. Rdd1 Bg4 $19) 25... gxf6 26. fxe4) 24... Nh4 $19 25. fxe4 (25. Bg2 $142 exf3 26. Bxf3) 25... Bxg4 26. Bg2 Nxg2 27. Qxg2 Qh4 28. Qh2 Qg5 29. Rg2 Rxd3 30. Rf1 $2 (30. e5) 30... Rxe4 31. Qxc7 Qg6 32. Ne1 Rxb3 33. Qd8+ (33. Nf3 $142 f6 34. Bc1) 33... Kh7 {Black is clearly winning.} 34. Nd3 {Now Ne5 and White clings on.} Qe6 ({Stronger than} 34... Rxc4 35. Ne5 Qe6 36. Qg5 $11 (36. Nxc4 f6 $11) (36. Rxf7 $2 Rxb2 37. Qd3+ Kg8 38. Qd8+ Kh7 39. Qd3+ Kh6 40. Rxb2 Rc1+ 41. Kf2 Bh3 $19)) 35. Nf4 {[#]} Rxf4 $1 36. exf4 Qe3+ (36... Qxc4 37. Qh4 (37. Bxg7 Nxg7 38. Rxg4 Rh3 $11) 37... f5 38. Rxg4 fxg4 39. Qxh5+ Kg8 40. Qe8+ Kh7 41. Qh5+ Kg8 42. Qe8+ Kh7 43. Qh5+ $11) 37. Kh2 {intending Bxg7.} Qh3+ ({Weaker is} 37... Be2 {[#]} 38. Bxg7 $1 {[%mdl 512]} Nxg7 39. Qg5 $1 $11 {[%mdl 512]}) 38. Kg1 Bf3 39. Rxf3 Rxf3 40. Qg5 Re3 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.20"]
[Round "4"]
[White "Flores, Diego"]
[Black "Bachmann, Axel"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,37,-13,-57,119,111,139,119,260,58,496,482]} 1. c4 Nf6 2. g3 e6 3. Bg2 Be7 4. Nf3 d5 5. O-O O-O 6. d4 c6 7. Qc2 Nbd7 8. Bf4 Nh5 9. Bd2 Nhf6 10. Nc3 b6 {E11: Bogo-Indian} 11. Rfd1 Ba6 12. Ne5 Nxe5 13. dxe5 Nd7 14. cxd5 cxd5 15. Bf4 {LiveBook: 4 Games} Qc7 $146 {[#]} (15... g5 $15 {keeps the upper hand.} 16. Bc1 (16. Be3 Nxe5 17. Bd4 Ng6 $15) 16... Nxe5) (15... g5 16. Nxd5 exd5 17. Bxd5 Qc8 {0-1 (49) Swinkels,R (2494)-Lauber,A (2464) Germany 2011}) 16. Rac1 $1 $16 Kh8 17. Qd2 Nc5 (17... Qd8 $16 {was necessary.}) 18. Qd4 $2 ({White has to play} 18. b4 $18) 18... g5 $2 {[%mdl 8192] [#]} (18... Qd7 $1 $14) 19. Nxd5 $1 {[%mdl 512]} 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.20"]
[Round "4"]
[White "Slipak, Sergio"]
[Black "Pichot, Alan"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2465"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,68,0,0,0,6,0,0,-62,0,0,0,-33,-30,-24,-33,-31,-30,-30,-18,-34,-23,-58,0,0,0,0,0,0,0,0,-7,-8,-8,-299,-293,-265,-278,-672,-707,-588,-572,-843,-839,-1144,-1146,-1124,-1116,-1036,-1036,-1025,-1014]} 1. g3 d5 2. Nf3 Nf6 3. Bg2 e6 4. O-O Be7 5. b3 O-O 6. c4 d4 7. e3 c5 8. exd4 cxd4 9. Re1 Nc6 10. d3 Nd7 11. Na3 {A14: English Opening: 1...e6 with b3 by White} e5 12. Nc2 a5 13. Ba3 $146 (13. Rb1 $11) (13. Rb1 Rb8 14. a3 b5 15. Nh4 Na7 16. Nf5 Bf6 17. Nd6 Nc5 18. Nxc8 Qxc8 {½-½ (44) Sanal,V (2531)-Nabaty,T (2649) Budapest 2017}) 13... Re8 (13... Bxa3 $15 14. Nxa3 f6) 14. Bxe7 Rxe7 15. Ng5 h6 16. Ne4 $1 f5 17. Nd6 Nc5 $1 18. Bd5+ Kh7 19. Nxc8 Rxc8 20. f3 b5 (20... Re8 $15) 21. Bxc6 $11 bxc4 22. Bb5 Nxd3 23. Bxc4 Nxe1 24. Qxe1 d3 25. Ne3 Qd4 26. Rd1 $2 {[%mdl 8192] [#]} (26. Kg2 $1 $11 e4 27. f4) 26... Rxc4 $1 $19 {[%mdl 512]} (26... e4 27. Qf2 Rc5 28. fxe4 fxe4 29. Kg2 $11) 27. bxc4 {Hoping for Qf2.} f4 28. Kf2 $2 (28. Qd2 Rd7 29. Kf2) 28... Rb7 {Black is clearly winning.} (28... fxe3+ 29. Qxe3 Qxc4 30. Qxd3+ Qxd3 31. Rxd3 $11) 29. Rd2 g5 ({And not} 29... fxe3+ 30. Qxe3 Qxc4 31. Qxe5 $11 (31. Qxd3+ Qxd3 32. Rxd3 Rb2+ 33. Ke3 Rxa2 $15)) (29... Rb1 30. Qxb1 fxe3+ 31. Ke1 exd2+ 32. Kxd2 Qf2+ 33. Kc3 $11 (33. Kxd3 Qxf3+ 34. Kd2+ e4 $11)) 30. gxf4 exf4 31. Qe2 Rb2 ({Inferior is} 31... dxe2 32. Rxd4 fxe3+ 33. Kxe2 $11) ({Less strong is} 31... fxe3+ 32. Qxe3 Qxc4 33. Qe4+ Qxe4 34. fxe4 $15) 32. Rxd3 Rxe2+ 33. Kxe2 Qb2+ 34. Rd2 Qe5 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.20"]
[Round "4"]
[White "Garcia Palermo, Carlos"]
[Black "Morovic Fernandez, Ivan"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2450"]
[BlackElo "2527"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,1,0,0,0,0,0,0,11,8,18,0,0,-5,-1,-10,-10,-19,-12,-11,-20,-41,-40,-61,-58,-75,-73,-75,-81,-64,-50,-28,-42,-122,-127,-122,-131,-110,-29,-32,-31,-47,-38,-179,-158,-176,-75,-80,0,0,58,66,29998,29999]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bg5 Be7 7. Qa4+ c6 8. cxd5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} Nxd5 (8... exd5 9. g3 O-O 10. Bg2 Nbd7 11. O-O Ne4 12. Bf4 g5 13. Be3 f5 14. Qc2 Bf6 15. b4 Qe7 {1-0 (48) Mamedyarov,S (2768)-Korobov,A (2692) Doha 2016}) 9. Bxe7 Qxe7 10. Rc1 {The position is equal.} Nd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 11. g3 $146 (11. e3 N5f6 12. Ba6 Bxa6 13. Qxa6 O-O 14. O-O c5 15. h3 cxd4 16. Nxd4 {1-0 (28) L'Ami,E (2603)-Werle,J (2607) Wijk aan Zee 2009}) 11... O-O 12. Nxd5 exd5 (12... cxd5 $6 13. Rc7 Bc8 14. Ne5 $16) 13. Bh3 Nf6 14. e3 c5 15. O-O c4 16. b3 a6 17. Ne5 b5 18. Qa5 Ne4 (18... cxb3 $6 19. Rb1 $14) 19. a4 {[%cal Rb3c4]} f6 $36 {[%mdl 2048] White is under strong pressure.} 20. Nf3 Qd8 (20... cxb3 $6 21. axb5 axb5 22. Qxb5 $11) 21. Qb4 Qd6 22. Qxd6 Nxd6 23. bxc4 (23. Nd2 $15) 23... dxc4 $17 24. Be6+ Kh8 25. d5 Bc8 ({Not} 25... bxa4 26. Rc2 $14) (25... b4 $17 26. e4 Bc8) 26. axb5 axb5 27. Rb1 ({Of course not} 27. Nd4 b4 28. Rb1 b3 $17) 27... Ra4 28. Rfd1 {[#]} ({White should try} 28. Ra1 $1 $15) 28... b4 $1 $19 29. Rd4 Rd8 (29... b3 $19 {has better winning chances. And now ...Nb5 would win.} 30. Nd2 Rb4) 30. e4 $17 {[#]} Ra6 (30... Ba6 $1 $17 {...b3 is the strong threat.} 31. e5 fxe5 32. Nxe5 g6) 31. e5 $11 fxe5 (31... Nb5 $1 $11 32. Rxc4 Bxe6 33. dxe6 Na3) 32. Nxe5 $14 {Intending Ng6+! and mate.} b3 $2 {[%mdl 8192] [#]} (32... g5 $14) 33. Ng6+ $1 {[%mdl 512]} ({Weaker is} 33. Nxc4 Nxc4 34. Rxc4 Bxe6 35. dxe6 Rxe6 $16) 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.20"]
[Round "4"]
[White "Darcyl, Tomas"]
[Black "Sosa, Tomas"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2405"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,64,13,16,19,25,50,32,26,21,20,18,29,13,8,6,31,42,34,33,56,40,70,62,64,59,65,5,2,0,0,6,76,11,27,0,25,23,24,-279,-337,-650,-584,-635,-556,-1076,-1045,-1021,-908,-1012,-1013,-1453,-924,-1645,-1476,-2779,-2688]} 1. Nf3 Nf6 2. g3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 3. Bg2 Bb7 4. Na3 a6 5. c4 b4 6. Nc2 c5 {A05: Réti Opening: 1 Nf3 Nf6} 7. a3 $146 (7. O-O e6 8. d4 cxd4 9. Ncxd4 Be7 10. b3 O-O 11. Bb2 d6 12. Qd2 Qb6 13. a3 bxa3 14. Bxa3 Nbd7 15. Qb4 Qc7 16. Rfd1 Rab8 {1-0 (61) Efimenko,Z (2648)-Moiseenko,A (2707) Dubai 2014}) 7... bxa3 8. b3 e6 {White is slightly better.} 9. Bxa3 Be7 10. O-O O-O 11. Ne3 d6 12. b4 cxb4 13. Bxb4 a5 14. Ba3 Nbd7 15. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} Qc7 16. d5 e5 17. Nf5 Rfe8 $1 18. c5 (18. Nxe7+ $14 Rxe7 19. Nd2) 18... Nxc5 $11 {[#]} 19. Nxe5 $1 {[%mdl 512]} Bf8 $1 ({Don't play} 19... dxe5 $6 20. d6 Bxd6 21. Qxd6 Qxd6 22. Nxd6 Bxg2 23. Kxg2 $16) 20. Nc4 Rac8 (20... g6 $11 {remains equal.} 21. Nfe3 Nfd7) 21. Rc1 ({Better is} 21. Bb2 $16) 21... Qd8 22. Qd2 Nfe4 {[%cal Bf6e4,Be4c3,Bc3e2,Be2d4][%mdl 32]} 23. Qf4 {[#] aiming for f3.} Bxd5 {And now ...Nb3 would win.} 24. f3 $2 {[%mdl 8192]} (24. Rfd1 $11 {and White is okay.} Bxc4 25. Rxc4) 24... Nb3 $19 25. Rcd1 $2 (25. Rce1 Nc3 26. Nce3) 25... Nc3 {Black is clearly winning.} ({Less strong is} 25... Rxc4 26. fxe4 Be6 27. Qe3 (27. Bxd6 Nd4 28. Nxd4 Qxd6 29. Qxd6 Bxd6 $15) 27... Bxf5 28. Rxf5 $15) 26. Qg4 {Threatens to win with Rxd5!} Rxc4 27. f4 Nxe2+ 28. Kh1 Bxg2+ 29. Kxg2 g6 30. Bxd6 Qc8 31. Rd5 Qc6 32. Rfd1 Ned4 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.20"]
[Round "4"]
[White "Van Riemsdijk, Herman C"]
[Black "Hoffman, Alejandro"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2318"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,112,22,0,0,-15,0,-4,10,0,-5,-12,0,10,47,38,117,14,13,16,51,49,135,92,138,154,177,185,187,162,318,315,297,302,317,316,308,308,321,315,271,182,232,233,270,281,307,297,336,145,161,130,155,152,210,220,254,129,182,129,129,129,129,129,129,129,129,62,43,0,129,115,227,217,172,164,157,154,450,450,515,486,394,421,499,87,1144,204,437,171,154,0,385,0,163]} 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 Be7 9. O-O-O O-O 10. Rhe1 Re8 11. h3 a6 {C62: Ruy Lopez: Steinitz Defence} (11... a5 12. Qc4 Nd7 13. Bf4 Nb6 14. Qd3 Bf6 15. Nd4 Bg5 16. Qg3 Bxf4+ 17. Qxf4 Bd7 18. Re3 Re5 19. Nf3 {½-½ (42) Chereches,M (2331)-Glatt,G (2282) Hungary 2010}) 12. Kb1 h6 $146 (12... b5 13. Qd2 Qc8 14. Nd4 Bd7 15. g4 b4 16. Nd5 Nxd5 17. exd5 Bxg5 18. Qxg5 Qd8 19. Qf4 {1-0 (53) Chatzieleftheriou,A (1810)-Iliopoulos,D (1334) Achaea 2016}) 13. Bc1 Nd7 14. Nd5 Bf6 15. Qc4 (15. Qb4 $5 {looks sharper.} a5 16. Qc4 Nb6 17. Qd3 Na4 18. Qc4) 15... Bxd5 16. Qxd5 Qc8 17. g4 Re6 (17... a5 $14) 18. Nd4 (18. h4 $16) 18... Re5 $11 19. Qc4 b5 20. Qf1 Qb7 (20... d5 $14) 21. f3 Rae8 22. Bf4 R5e7 23. Nf5 Re6 24. h4 Nc5 $2 (24... b4 25. g5 Bc3) 25. g5 $18 {[%cal Bg4g5,Bg5h6][%mdl 32]} Be5 (25... hxg5 26. hxg5 (26. Bxg5 Be5 $14) 26... Bxb2 27. Kxb2 $18) 26. Bxe5 (26. gxh6 Bxf4 27. Nxg7 (27. hxg7 Be5 $11) 27... Qc8 $11) 26... Rxe5 27. gxh6 g6 {[#]} 28. h5 $1 {[%mdl 512]} Kh7 (28... gxf5 $2 29. Qg2+ Kf8 30. exf5 $18) (28... gxh5 29. Qg2+) 29. hxg6+ fxg6 30. Ne3 Rf8 31. Qg2 Ne6 32. Ng4 $1 {[%cal Rg4e5]} Nf4 33. Qd2 Re7 34. Qd4 (34. e5 $18 {has better winning chances.} dxe5 35. Nxe5) 34... Nh5 $16 35. Rd3 Rf4 36. a3 Ref7 (36... Qc8 $16 37. Qc3 Qe6) 37. Qc3 $18 Nf6 38. e5 ({White has to play} 38. Nf2 $1 $18 {[%cal Rf2h3] And now Nh3 would win.} Rh4 39. f4) 38... Nxg4 $16 39. e6 ({White should play} 39. fxg4 $18 b4 40. axb4) 39... Re7 40. fxg4 Qg2 41. Rg3 Qd5 42. g5 Rf5 43. Rge3 (43. b4 $16) 43... Qg2 $14 44. Rg3 ({White should try} 44. R3e2 $14 Qxg5 45. Qa5) 44... Qd5 $16 45. b3 Re5 (45... Qa8 $16 {might work better.} 46. Qd4 Qd5 47. Qxd5 Rxd5) 46. Rxe5 $1 $18 dxe5 {[%mdl 4096] Endgame KQR-KQR} 47. Rf3 {Strongly threatening Rf6.} Qxe6 48. Rf6 $40 {[%mdl 128] White is out for blood.} Qg4 $2 (48... Qd7 $16 {is a better defense.} 49. Rxa6 Qf5) 49. Qc5 ({Less strong is} 49. Rxa6 Qg1+ 50. Ka2 Qxg5 $16) 49... Qd1+ 50. Ka2 Qd8 51. Rxa6 e4 {[#] Now ...e3 and Black clings on.} 52. Qe3 $2 ({Weaker is} 52. Qxb5 e3 53. Qc4 Qe8 $16) (52. Ra8 $1 $18 {[%mdl 512]} Qd6 (52... Qxa8 53. Qxe7+) 53. Qxb5) 52... Re5 $2 {[%mdl 8192]} (52... Qd5 $16) 53. Rf6 $2 (53. Qc3 Qe7 54. Rc6 Rxg5 55. Rxc7 Qxc7 56. Qxc7+ Kxh6 57. Qf4) 53... Qd5 $2 (53... Re7 54. Qc3 Qg8) 54. Qf4 $2 (54. Qc3 c5 55. Rc6 $1 {[%mdl 512]}) 54... Re7 {[#]} 55. Qe3 $2 (55. Rf8 $1 $16 {Qf6 would kill now.} Qe5 56. Qd2) 55... Re5 {[#]} 56. Qf4 (56. Qc3 $142 $1 {[%cal Rc3c7]} c5 57. Rc6) 56... Re7 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.21"]
[Round "5"]
[White "Mareco, Sandro"]
[Black "Van Riemsdijk, Herman C"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2655"]
[BlackElo "2318"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,69,29,15,102,35,105,70,111,114,108,110,155,141,161,160,162,175,184,169,279,299,410,408,373,406,552,469,917,672,875,848,29985,29986,29986,29987,29990,29988,29993,29994,29994,1764,29995,29996]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 cxd4 12. cxd4 Qc7 13. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3,Bg3f5][%mdl 32]} Be6 14. Nf1 {C99: Closed Ruy Lopez: Chigorin Defence: 11 d4 Qc7 12 Nbd2 cxd4} Rac8 15. Bd3 {LiveBook: 9 Games} Nc4 $146 (15... exd4 $11 16. Nxd4 Nc6) (15... exd4 16. Nxd4 Nc6 17. Be3 Nxd4 18. Bxd4 Nd7 19. Ng3 Bf6 20. Bxf6 Nxf6 21. a4 Qb6 {½-½ (31) Oparin,G (2626)-Sevian,S (2591) Monzon 2016}) 16. b3 (16. d5 $16 Bd7 17. b3) 16... Nb6 (16... exd4 $14 17. Nxd4 (17. bxc4 bxc4 18. Nxd4 cxd3 $11) 17... Ne5) 17. Bb2 exd4 18. Nxd4 Nbd7 19. Ng3 Nc5 20. Ndf5 Nxd3 21. Qxd3 {And now Nxg7! would win.} ({Much less strong is} 21. Nxe7+ $6 Qxe7 22. Qxd3 h6 $16) 21... Ne8 22. Rad1 Bg5 23. h4 Bxf5 (23... Bd8 $142 24. e5 Qc2) 24. Nxf5 $18 ({Resist} 24. hxg5 $6 Bg4 $16) 24... Bd8 25. e5 dxe5 26. Bxe5 Qa7 27. Qh3 Ra8 {[#]} (27... Qb6 $142 28. Qg3 Qg6) 28. Rd7 $1 {[%mdl 512]} Qb6 (28... Qxd7 29. Nh6+) 29. Bd4 Qa5 {[#]} 30. Rxe8 $1 {[%mdl 512]} Rxe8 31. Qg3 {[%csl Gd4,Gf5][%cal Rg3g7]} Re1+ 32. Kh2 {[%csl Gd4,Gf5][%cal Rg3g7]} g6 33. Nh6+ Kf8 34. Rxf7+ Ke8 35. Qd6 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.21"]
[Round "5"]
[White "Bachmann, Axel"]
[Black "Granda Zuniga, Julio E"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2658"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,73,29,20,33,27,31,29,22,30,18,24,29,29,25,28,36,42,29,32,48,35,40,31,37,32,41,42,31,35,33,34,37,41,34,34,50,20,37,1,12,3,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. Bg2 O-O 6. Nf3 {LiveBook: 673 Games} b6 {E11: Bogo-Indian} (6... Bxd2+ 7. Qxd2 d5 8. O-O Rd8 9. Qc2 Nc6 10. cxd5 exd5 11. Rc1 Ne4 12. Nc3 Nb4 13. Qa4 c6 14. a3 Na6 15. e3 Nd6 16. b4 Nc7 17. Qb3 Be6 {0-1 (40) Prohaszka,P (2604)-Cori Tello,J (2601) Escaldes 2016}) 7. Ne5 d5 8. O-O Bxd2 {White has an edge.} 9. Nxd2 Bb7 10. cxd5 exd5 11. Rc1 c5 12. Qa4 Rc8 13. Rfe1 Na6 14. e4 Qe8 $146 (14... cxd4 15. Rxc8+ Rxc8 16. exd5 Qb4 17. Qxb4 Nxb4 {½-½ (36) Molina Navarro,J-Semmler,J (2022) ICCF email 2010}) 15. Qa3 {[#] Threatens to win with exd5.} (15. Qxe8+ $5 {creates asymmetry.} Rxe8 16. exd5 Rad8 17. Bf1 Kf8 18. Ndf3) 15... cxd4 {aiming for ...Rxc1.} 16. Rxc8 Qxc8 17. exd5 Bxd5 (17... Nxd5 18. Ne4 Qe6 19. Nd6 $18 (19. Ng5 Qf6 $16)) 18. Bxd5 Nxd5 19. Qf3 Qe6 20. Nb3 Nac7 21. Nxd4 Qf6 22. Qxf6 Nxf6 23. Nec6 Nfd5 24. Ne7+ Kf8 {The position is equal.} 25. Nxd5 Nxd5 $11 {[%mdl 4096] Endgame KRN-KRN} 26. Nc6 a6 27. Rd1 (27. Ne5 $5 {is interesting.} Rd8 28. Kg2 f6 29. Nc6 Rd6 30. Rc1) 27... Rc8 28. Rxd5 {[#] Black must now prevent Rd6.} Rxc6 {KR-KR} 29. Rd3 Rc2 30. Rb3 b5 31. Ra3 Rc6 32. Kf1 Ke7 33. Ke2 Rc2+ 34. Ke3 Rxb2 35. Rxa6 b4 36. h4 b3 37. axb3 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.21"]
[Round "5"]
[White "Pichot, Alan"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2556"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,51,34,37,53,54,64,56,73,61,71,64,58,64,61,62,74,76,59,60,66,90,72,91,167,147,174,155,277,274,602,584,583,551,482,410,410,400,1065,856,867,852]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Bg6 7. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32] LiveBook: 28 Games. B12: Caro-Kann: Advance Variation} Be7 (7... Ne7 8. a5 a6 9. b4 Nf5 10. c3 f6 11. Bf4 fxe5 12. dxe5 Be7 13. g4 Nh4 14. Nd4 Bf7 {1-0 (31) Caruana,F (2808)-Bareev,E (2675) Baku 2016}) 8. a5 Nh6 9. a6 $146 {White is slightly better.} (9. Nbd2 O-O 10. Nb3 Rc8 11. a6 b6 12. c4 Nf5 13. h3 Qc7 14. Bf4 Rfd8 {1-0 (29) Narayanan,S (2414)-Kathmale,S (2345) Pune 2014}) 9... b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 10. c4 dxc4 11. Bxc4 Nf5 12. g4 Nh6 13. h3 $1 b5 14. Bb3 Nb6 15. Nc3 {[%cal Bb1c3,Bc3b5,Bb5d6,Bd6e4,Be4c5][%mdl 32]} Ng8 16. d5 Nxd5 17. Bxd5 cxd5 (17... exd5 $16 {keeps fighting.} 18. Nd4 Rc8) 18. Nxb5 $18 h5 {[#]} 19. g5 $1 Be4 (19... Bc5 $16 {is a better defense.}) 20. Nfd4 Bxg5 $2 (20... Kf8 21. Nxa7 Qb6) 21. Nc6 Qd7 22. Nd6+ Kf8 23. Nxe4 Bxc1 24. Rxc1 (24. Qxc1 dxe4 25. Rd1 Qc7 $18) 24... Rc8 (24... Ne7 $142 25. Nxe7 Qxe7) 25. Qa4 Ne7 26. Nc5 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.21"]
[Round "5"]
[White "Morovic Fernandez, Ivan"]
[Black "Darcyl, Tomas"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2527"]
[BlackElo "2405"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,38,37,29,24,24,31,32,42,38,31,37,32,0,0,0,0,0,0,-35,0,-78,-38]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} 6. Bb2 Bf5 7. c4 c6 8. Be2 Nbd7 9. O-O Ne4 10. a4 {LiveBook: 10 Games} Nxd2 (10... Re8 11. cxd5 cxd5 12. Nxe4 Bxe4 13. Qb3 {1-0 (36) So,W (2808)-Vachier Lagrave,M (2796) chess.com INT 2017}) 11. Nxd2 e5 12. cxd5 cxd5 13. dxe5 Nxe5 14. Bd4 Re8 $146 15. Qb3 Nc4 16. Nxc4 {[#] Strongly threatening Bxg7.} Bxd4 17. Rad1 Bg7 18. Na5 Qe7 19. Bb5 (19. Qxd5 $11 {remains equal.} Qxb4 20. Qb5 Qxb5 21. axb5) 19... Rec8 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.21"]
[Round "5"]
[White "Hoffman, Alejandro"]
[Black "Slipak, Sergio"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2488"]
[BlackElo "2465"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,141,16,33,4,11,1,7,0,7,10,27,0,8,2,1,0,0,5,8,13,6,10,11,6,12,0,22,21,16,14,14,7,20,0,0,0,11,6,12,0,14,14,14,14,25,18,22,10,13,12,26,36,75,73,49,8,9,0,1,-11,-11,-35,-35,-22,-14,-14,0,0,47,38,28,0,0,0,0,0,8,0,0,0,8,10,32,0,19,19,19,22,32,4,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,19,4,8,8,19,19,19,19,19,19,19,19,19,19]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Nf3 Nf6 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4} Be6 {LiveBook: 53 Games} 7. Rc1 $146 (7. e3 Nbd7 8. Bd3 h6 9. Bh4 g5 10. Bg3 Nh5 11. Be5 Ng7 12. h3 Nxe5 13. Nxe5 Bd6 {½-½ (60) Van Wely,L (2695)-Andreikin,D (2736) Wijk aan Zee 2017}) (7. e3 Nbd7 8. Bd3 h6 9. Bh4 Bd6 10. Rc1 c6 11. Bg3 Bxg3 12. hxg3 O-O 13. O-O Qc7 {½-½ (91) Guo,Q (2447)-Ju,W (2559) Yangzhou 2016}) 7... Nbd7 8. e3 Bd6 9. Bd3 c6 10. O-O O-O 11. Qc2 Qc7 12. Bh4 h6 13. Bg3 Bxg3 14. hxg3 a5 15. a3 Qd6 16. Na4 Rfe8 17. Nc5 Nxc5 18. dxc5 Qc7 19. b4 Bd7 20. Nd4 axb4 21. axb4 Ng4 22. Ra1 Qe5 23. Bf5 Nf6 24. Bxd7 Nxd7 25. Qf5 Qc7 (25... Qxf5 $5 {feels hotter.} 26. Nxf5 Ne5 27. Rfd1 g6 28. Nd6 Rxa1 29. Rxa1 Rb8) 26. Qf4 $36 {[%mdl 2048] Black is under pressure.} Qxf4 27. gxf4 g6 28. Rfb1 Kg7 29. g3 h5 30. Kg2 Nf6 (30... Kf6 $5 {is interesting.} 31. Kf1 Ke7 32. Ke2 Rec8 33. Rh1 Nf6) 31. Ra5 Rxa5 32. bxa5 $14 {[%mdl 4096] Endgame KRN-KRN} Re7 33. Rb6 {Black should prevent a6.} Rc7 34. Nb3 Nd7 35. Rb4 Nb8 36. f3 Na6 37. Rb6 f5 38. Kf2 Re7 39. Ke2 d4 (39... Kf7 $5 {seems wilder.} 40. Kd2 Kf6 41. Ke2 g5 42. fxg5+ Kxg5 43. Kd3 Kg6) 40. Nxd4 Nxc5 41. a6 (41. Rb1 $5 {is more complex.} Rd7 42. Nb3 Ne6 43. Ra1 Re7 44. Rh1) 41... Nxa6 {[#]} 42. Nxc6 $1 {[%mdl 512]} bxc6 43. Rxa6 $11 {KR-KR} Re6 44. Kd3 Rd6+ 45. Ke2 Re6 46. Ra7+ Kf6 47. Rh7 Re8 48. Rc7 Re6 49. Kf2 g5 50. Rh7 Kg6 {The position is equal.} 51. Rh8 {[#] Rg8+ is the strong threat.} (51. Rd7 $5 {with more complications.} gxf4 52. exf4 c5 53. Rc7 Ra6 54. Rxc5 Ra2+ 55. Kg1) 51... gxf4 52. gxf4 Re7 53. Rc8 Re6 54. Rg8+ Kh6 55. Rf8 Kg6 56. Rc8 Kg7 57. Rc7+ Kg6 58. Kg3 Rxe3 59. Rxc6+ Kf7 60. Kh4 Rxf3 61. Kg5 $1 Ra3 62. Rf6+ Kg7 63. Rg6+ Kf7 {( -> ...Rg3+)} 64. Rh6 Ra5 65. Rh7+ Kg8 66. Rxh5 Kg7 67. Rh6 Rb5 68. Ra6 Rc5 69. Ra7+ Kf8 70. Kf6 {Ra8+ would kill now.} Rc6+ 71. Kxf5 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.21"]
[Round "5"]
[White "Sosa, Tomas"]
[Black "Flores, Diego"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2568"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,116,12,-2,21,15,16,1,5,5,18,0,45,0,0,-16,0,0,0,-18,0,-38,0,7,16,-75,-81,-77,-77,-89,-96,-98,-38,-29,19,19,19,24,20,22,31,20,15,0,0,0,0,0,0,0,0,0,0,-58,-58,-144,-139,-137,-137,-137,-142,-142,-151,-151,-96,-96,-96,-92,-83,-78,-77,-81,-74,-110,-118,-160,-170,-1044,-930,-1085,-978,-5060,-4964,-1861,-1867,-1462,-1279,-29973,-29974,-29974,-29975,-29975,-29976,-29977,-29978,-29978,-29979,-29979,-29978,-29982,-29983,-29987,-29984,-29988,-29989]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 Bb6 7. a4 h6 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 8. Na3 {LiveBook: 3 Games} O-O 9. Ba2 $146 (9. Bb3 Re8 10. Nc4 Be6 11. Bc2 Bxc4 12. dxc4 a5 13. g3 Qd7 14. Nh4 Qh3 15. Qf3 {1-0 (45) Neelotpal,D (2463)-Zhang,Z (2645) Doha 2016}) 9... a6 {The position is equal.} 10. h3 Ne7 11. Nc4 Ba7 12. Nh4 g5 13. Qf3 (13. Nf3 $14) 13... Kg7 $11 14. Nf5+ $1 Nxf5 15. exf5 Re8 16. Re1 Bd7 $36 {[%mdl 2048] White is under pressure.} 17. Ne3 e4 18. dxe4 Rxe4 19. Bd2 {[#]} (19. Bb1 $11 {keeps the balance.} Re8 20. Bc2 (20. Qxb7 d5 21. Qb3 c5 $11)) 19... Bc6 $1 $17 {White must now prevent ...Rxe3.} ({Of course not} 19... Bxa4 $6 20. Bb1 Rh4 21. Qxb7 $14) 20. Nd5 Rxa4 ({Much weaker is} 20... Bxd5 $6 21. Bxd5 Rxe1+ 22. Rxe1 $11) 21. c4 Bxd5 22. cxd5 Rd4 (22... Qd7 $17 {...Qb5 is the strong threat.} 23. Bb3 Rxa1 24. Rxa1 Bd4) 23. Re2 $1 $15 (23. Bc3 $2 Rf4 24. Qd3 Bxf2+ 25. Kh2 Qd7 $17) 23... Bb6 24. g3 Rxd2 25. Rxd2 Qe8 26. Re2 Qa4 27. Kg2 Re8 28. b3 Qd4 29. Rxe8 Qxa1 30. Re2 Qd4 31. Bb1 a5 32. Be4 Bc5 33. g4 (33. Bc2 $11) 33... b5 34. h4 (34. Bd3 $15) 34... gxh4 35. Qf4 {With the idea g5.} Nxd5 36. f6+ Qxf6 37. Qxf6+ Nxf6 $17 {[%mdl 4096] Endgame KRB-KBN} 38. Bc6 a4 (38... Nxg4 $142 39. Bxb5 Nxf2) 39. bxa4 bxa4 ({But not} 39... Nxg4 $6 40. Bxb5 Bb6 41. Ra2 $11) 40. Bxa4 Nxg4 41. f4 Ne3+ 42. Kf3 Nf5 {Hoping for ...Nd4+.} 43. Kg4 Kf6 44. Re8 h5+ 45. Kxh5 $2 (45. Kh3) 45... Ng7+ $19 46. Kxh4 Nxe8 47. Bxe8 {KB-KB} d5 48. Kg4 Ke7 49. Bb5 Bd4 50. f5 f6 {Black mates.} 51. Kf3 Kd6 52. Ke2 c5 {[%cal Bc7c5,Bc5c4][%mdl 32]} 53. Kd3 Be5 54. Be8 c4+ 55. Kd2 Kc5 56. Bf7 d4 {[%cal Bd5d4,Bd4d3][%mdl 32]} 57. Be6 d3 58. Ke3 {[#]} Bf4+ $1 {[%mdl 512]} 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.22"]
[Round "6"]
[White "Granda Zuniga, Julio E"]
[Black "Van Riemsdijk, Herman C"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2658"]
[BlackElo "2318"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,155,19,14,0,9,0,81,76,64,53,87,38,32,36,40,32,26,24,45,34,45,26,77,70,61,35,51,58,99,74,75,66,65,65,58,68,110,34,64,52,58,56,63,47,67,52,54,50,74,48,68,73,60,25,221,51,39,40,68,47,46,59,50,55,55,56,50,29,70,45,89,94,139,157,191,170,172,170,204,211,250,239,270,276,239,208,207,179,200,200,168,178,131,39,39,39,39,23,39,39,39,39,39,39,39,39,75,0,64,14,15,2,8,8,8,0,8,8,8,0,5591,5388,1756,1702,29972,29966,29973,29975,29976,29977,29977,29978,29978,29979,29979,29980,29980,29981,29981,29982]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Be7 {C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines} (8... Rb8 9. Bd3 h6 10. Ne4 Nd5 11. b3 Nf4 12. Bb2 f6 13. O-O Be7 14. Re1 O-O 15. Bf1 c5 16. Ng3 Qd7 17. Nh5 Bb7 {½-½ (62) Ganguly,S (2614)-Amin,B (2627) Abu Dhabi 2014}) 9. Be2 O-O {LiveBook: 3 Games} 10. Qd3 $146 (10. Ne4 Nd5 11. d3 f5 12. Nec3 Rb8 13. O-O Be6 14. Re1 Rf6 15. Bf1 Qc7 16. Bg5 Rxb2 17. Bxf6 Bxf6 {½-½ (45) Johnsen,K (2470)-Auzins,M (2462) ICCF email 2008}) 10... Qc7 {The position is equal.} 11. Nc3 g6 (11... Nb7 $11) 12. Qg3 $16 Nd5 13. O-O (13. d4 $5 {creates asymmetry.} f6 14. Nf3 Bd6 15. dxe5 fxe5 16. Qh4) 13... f6 14. Nh3 Bf5 15. d3 Nb7 {[%cal Ba5b7,Bb7d6,Bd6b5,Bb5a3][%mdl 32]} 16. Bg4 Nd6 17. f3 Nxc3 18. bxc3 Qa5 19. Qe1 Bxg4 (19... Qa4 $11) 20. fxg4 Qa4 21. Qd1 Nb5 22. Bd2 Na3 23. Rc1 Nb5 24. c4 Nd4 25. c3 Qxd1 26. Rcxd1 Ne6 27. Kf2 ({White should try} 27. Rde1 $16) 27... Rfd8 28. Ke2 Rd7 29. Be3 Rb8 30. Rd2 Kg7 31. g3 a5 32. d4 exd4 33. cxd4 Rb4 34. Rc1 Ra4 35. d5 Nc7 $2 (35... cxd5 $11 36. cxd5 Nd8) 36. Rcc2 $2 ({White must play} 36. dxc6 $18 Rxd2+ 37. Bxd2 (37. Kxd2 Rxa2+ 38. Rc2 Bb4+ 39. Kd3 Ra1 $18)) 36... cxd5 $14 37. Nf4 Bb4 38. Rd1 Kf7 39. Nxd5 Nxd5 40. cxd5 Bd6 41. g5 f5 42. Rd3 Rb7 43. Rd4 Rxd4 44. Bxd4 {[%mdl 4096] Endgame KRB-KRB} Rb5 45. Kd3 $1 f4 46. Rc6 Ke7 47. gxf4 $1 Rxd5 48. Ke4 Rb5 49. Ra6 Rb4 50. Rxa5 Bxf4 51. a3 (51. Kxf4 $6 Rxd4+ 52. Ke5 Rh4 $16) 51... Rc4 {[#]} 52. Kd5 $1 {[%cal Rd5c4]} (52. Kxf4 $6 Rxd4+ 53. Ke5 Rh4 $16) 52... Rc7 {[#]} 53. h4 $1 Rd7+ 54. Ke4 Bg3 55. Bc5+ (55. a4 $16) 55... Kd8 56. h5 gxh5 57. Ra6 h4 58. Rh6 Be1 59. Bd4 Kc7 60. a4 Kb7 61. Be5 Ka8 62. Bd4 Kb7 63. Rb6+ Kc7 {Strongly threatening ...Rxd4+!} 64. Rb5 Kc6 65. Be3 Bd2 {...Re7+ is the strong threat.} 66. Rc5+ (66. Rb6+ $5 {looks sharper.} Kc7 67. Rb3 Re7+ 68. Kf3 Rd7 69. Kf4) 66... Kb7 {aiming for ...Re7+.} 67. Bxd2 Rxd2 $11 {KR-KR} 68. Rf5 {Black must now prevent Rf7+.} Ra2 $2 {[%mdl 8192]} (68... Rg2 $11) 69. Rf7+ $18 Kc6 70. Rxh7 Rxa4+ 71. Ke5 {White mates.} Ra1 72. g6 {[%cal Bg5g6,Bg6g7][%mdl 32]} Rg1 73. g7 ({Stronger than} 73. Rxh4 Rxg6 74. Rh8 Rg1 $11) 73... h3 74. Kf6 ({Inferior is} 74. Rxh3 Rxg7 75. Rh8 Rg4 $11) 74... Rf1+ 75. Ke7 Rg1 76. Kf7 ({Worse is} 76. Rxh3 Rxg7+ 77. Kf6 Rd7 $11) 76... Rf1+ 77. Kg8 Rf3 78. Kh8 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.22"]
[Round "6"]
[White "Bachmann, Axel"]
[Black "Sosa, Tomas"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,102,45,27,14,6,32,6,15,9,55,56,56,38,64,64,62,60,106,102,105,102,111,99,102,76,78,50,82,50,83,85,108,105,118,117,119,108,171,152,101,91,125,125,120,89,103,92,101,90,100,104,94,98,433,50,58,-30,-21,-30,29,21,119,131,129,38,113,-258,-254,-375,-273,-285,-295,-282,-275,-275,-275,-266,-266,-252,-260,-257,0,-148,0,-257,-253,-1041,-1029]} 1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. b3 Nc6 7. Bb2 e5 8. dxe5 Nd7 9. c4 dxe5 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems} (9... Re8 10. Nc3 dxe5 11. Nd2 Nd4 12. e3 Ne6 13. b4 a5 14. a3 f5 15. c5 e4 16. Nc4 Ne5 17. Nxe5 Bxe5 {1-0 (55) Mons,L (2469)-Kokol,P (2351) Graz 2017}) 10. Ne1 Nc5 $146 (10... Nd4 11. Nc3 c6 12. Nd3 f5 13. e3 Ne6 14. Na4 Qe7 15. Qc1 Re8 16. f3 h5 17. Qe1 {½-½ (95) Barcza,G-Fischer,R Zuerich 1959}) 11. Nc2 Nd4 {The position is equal.} 12. Nc3 Bf5 13. Ne3 {Threatens to win with Ba3.} c6 14. b4 $36 {[%mdl 2048] Black is under pressure.} Nd7 15. Nxf5 Nxf5 16. e3 a5 17. b5 Qc7 18. bxc6 bxc6 19. Qc2 Rfd8 20. Ba3 Nd6 21. Na4 Bf8 22. Rfd1 Nb7 23. Bxf8 Kxf8 24. c5 Nf6 25. Rdb1 Ra7 26. Rb3 e4 (26... Kg7 $16 27. Rab1 Rd7) 27. Rab1 $18 (27. Bxe4 $2 Qe5 28. Bxc6 (28. Rab1 $2 Nxe4 29. f4 Qf5 $19) 28... Qxa1+ $17) 27... Qe7 28. Bh3 Rd5 29. Rc3 Rh5 30. Bg2 Nd8 31. Rc4 {[%cal Rg2e4]} Re5 32. Nb6 {Strongly threatening Nc8.} Rc7 33. Qc3 Nb7 {[%cal Rb7c5]} 34. Bh3 $1 Rh5 $2 {[%mdl 8192]} (34... Rxc5 $2 35. Rxc5 Nxc5 36. Nc8 (36. Qxa5 Nd3 $11) 36... Rxc8 37. Bxc8 $18) (34... Nd5 $16 35. Nxd5 cxd5) 35. Nd7+ $2 (35. Na8 $18 Kg7 36. Nxc7 Qxc7 37. Bg2) 35... Kg7 $14 36. Rd1 (36. Nxf6 $14 Qxf6 37. Qxf6+ Kxf6 38. Bg2) 36... Rxh3 $11 {[#]} 37. Rxe4 $3 {[%mdl 512]} Qd8 {[#]} ({Black should play} 37... Rxd7 38. Rxe7 Rxe7) (37... Qxe4 38. Nxf6) 38. Re8 $1 {[%mdl 512]} Qxd7 (38... Qxe8 39. Nxf6 Qc8 40. Ne8+ Kf8 41. Qh8+ (41. Nxc7 Qxc7 42. Rd4 Kg8 $17) 41... Ke7 42. Qe5+ Qe6 43. Qxc7+ Kf8 44. Nd6 Nxc5 45. Rd4 $18) (38... Rxd7 $11 39. Rxd8 Rxd8) 39. Rxd7 $16 Rxd7 40. Rc8 (40. g4 $1 $16 {[%cal Rg4g5] Hoping for g5.} h6 41. Kg2) 40... Nd8 $14 {[#]} 41. g4 $2 {[%mdl 8192]} (41. f4 $1 $16 {keeps the pressure on.} h6 42. Kg2) 41... Ne6 $19 {...Rd1+ is the strong threat.} 42. Qa1 (42. Qb2 $142 Rh4 43. h3 Rxh3 44. Rxc6 Rd1+ 45. Kg2) 42... h5 43. Rxc6 {aiming for g5!} hxg4 44. Rd6 Rc7 45. c6 Rh5 46. Qb2 Rc5 47. Qb6 {[#]} Nd5 $1 ({Less strong is} 47... Rc1+ 48. Kg2 Re7 49. a4 $15) 48. Qb2+ Nf6 (48... Nc3 $19 49. Qa3 R7xc6 50. Rxc6 Rxc6 51. Qxa5 Rc5) 49. Qb6 $17 {Black must now prevent Rxe6!} Nd5 ({Much less strong is} 49... Rc1+ 50. Kg2 Re7 51. a4 $15) (49... Re7 $17 50. Kg2 (50. Qb2 $2 Rc7 $19) 50... Ne4) 50. Qb2+ $19 Kh7 51. Qe2 $2 (51. Qb3 Nb4 52. Rd7 R5xc6 53. Rxc7 Rxc7 54. Kg2) 51... Rc1+ (51... R7xc6 $2 52. Rxc6 Rxc6 53. Qxg4 $17) 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.22"]
[Round "6"]
[White "Flores, Diego"]
[Black "Morovic Fernandez, Ivan"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2527"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,109,6,2,50,48,58,11,37,0,30,33,33,47,42,0,25,0,29,12,26,0,23,21,25,15,26,23,28,29,20,8,20,19,17,0,89,100,119,79,173,133,118,102,245,53,54,52,52,60,120,61,56,58,125,70,75,26,31,5,13,8,130,47,48,48,148,132,118,46,51,-29,64,-1,0,-6,-6,-29,0,0,208,185,285,51,420,393,495,473,480,476,639,576,704,204,29997,29998]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. e3 Be7 {A22: English Opening: 1...e5 2 Nc3 Nf6} (6... Nc6 7. Nge2 h5 8. h3 h4 9. g4 f5 10. d4 exd4 11. exd4 fxg4 12. Qd3 Qf6 13. Ne4 Bb4+ 14. Bd2 {0-1 (46) Caruana,F (2804)-Vachier Lagrave,M (2789) Paris 2016}) 7. Nge2 Nc6 8. O-O O-O 9. f4 {LiveBook: 43 Games} exf4 10. Nxf4 Ne5 11. b3 c6 12. Bb2 Ng6 13. Qc2 Nxf4 14. Rxf4 Be6 $146 15. Be4 g6 16. Ne2 Nd5 17. Bxd5 Qxd5 18. Nc3 Qd7 19. Ne4 Bf5 $1 20. Raf1 $40 {[%mdl 128] White attacks.} Rad8 21. Qc3 {[%csl Gb2][%cal Rc3h8]} f6 $1 22. g4 Bxe4 $1 23. Rxe4 {Threatens to win with Qc4+.} Rf7 $1 24. Rf2 {[%cal Bf1f2,Bf2g2,Bg2c2][%mdl 32]} c5 25. g5 {[%cal Rg5f6]} b5 (25... Rdf8 $11) 26. gxf6 $16 Bf8 27. Qc2 Qc6 (27... Qd3 $16 {might work better.} 28. Qxd3 Rxd3) 28. Rg4 Qd7 29. Rfg2 Qe6 (29... Qd3 $16 {keeps fighting.} 30. Qc1 Re8) 30. Qe4 $2 (30. h4 $1 $18 {[%cal Rh4h5] aiming for h5.} Bh6 31. Re4 (31. Qxc5 Rxd2 32. R4g3 Rd3 $11)) 30... Qxe4 $14 31. Rxe4 Rfd7 32. d4 Rd6 {[#]} (32... Rc7 $14) 33. Rf4 (33. Rc2 $1 $16) 33... Kf7 34. Rc2 Ra6 (34... Rd5 $14) 35. a3 (35. dxc5 $16 {Black must now prevent a3.} Rxa2 36. c6) 35... Re6 36. Rf3 Rd5 37. Kf2 Bd6 38. h3 b4 (38... a5 $11 {keeps the balance.}) 39. a4 (39. axb4 $16 {[%cal Rd4c5]} cxb4 40. Ke2) 39... a5 40. Rc4 g5 (40... Rg5 $14) 41. Ke2 $16 {Strongly threatening Kd3.} h5 {[#]} 42. Kd3 (42. dxc5 $1 $16 Bxc5 43. e4) 42... g4 $14 43. Rf1 ({Better is} 43. hxg4 $1 $14 hxg4 44. Rf1) 43... cxd4 (43... gxh3 $11 44. e4 Rg5) 44. Bxd4 ({White should try} 44. e4 $14 Rg5 45. hxg4 (45. Bxd4 g3 46. Rg1 h4 $15)) 44... gxh3 $11 45. Rc8 h2 ({Wrong is} 45... Re8 $2 46. Rxe8 Kxe8 47. e4 $18) 46. Rh8 Rg5 47. Rh7+ Kg8 $2 (47... Kg6 $1 $11 {and Black stays safe.} 48. Rg7+ Kh6) 48. Rd7 {Threatening mate with f7+.} Bf8 (48... Rxf6 $142 49. Bxf6 Rg1 50. Rg7+ (50. Rd8+ $2 Kf7 51. Be5+ Rxf1 52. Bxh2 Bxh2 $19) 50... Rxg7 51. Bxg7 Kxg7) 49. Rh1 $2 (49. f7+ $18 Kh7 50. Rh1) 49... Rd6 $2 {[%mdl 8192]} ({Black should play} 49... Bc5 $1 $14) 50. Ra7 Rd8 51. Rxh2 Bd6 52. Rf2 ({Less strong is} 52. f7+ Kf8 53. Rf2 Be5 $16) 52... Kf8 53. Ke2 Rd5 54. f7 $2 (54. Rh7 Kg8 55. Rg7+ Kh8 56. Rfg2) 54... Rc8 $2 {[#]} (54... Be7 $18 55. Rf4 R8d7) 55. Bg7+ $1 {[%mdl 512]} 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.22"]
[Round "6"]
[White "Slipak, Sergio"]
[Black "Mareco, Sandro"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2465"]
[BlackElo "2655"]
[Annotator "TA"]
[PlyCount "24"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,24,6,-9,68,63,95,83,122]} 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Bd2 d5 5. e3 O-O 6. Nf3 b6 7. cxd5 exd5 8. Bd3 Bb7 9. O-O Nbd7 10. Rc1 {LiveBook: 31 Games} Re8 {E52: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5 6 Bd3 b6} (10... Be7 $11) (10... a6 11. Ne5 Re8 12. f4 Nf8 13. Be1 c5 14. Bh4 c4 15. Bc2 b5 16. g4 Qb6 17. g5 Ne4 18. Nxe4 dxe4 {0-1 (44) Li,C (2746)-Short,N (2666) Baku 2016}) 11. Nb5 $1 $14 Bd6 12. Qc2 Re7 $146 (12... Nf8 13. Nxd6 cxd6 14. Qc7 Re7 15. Qxd8 Rxd8 16. Bb4 Ne6 17. Ne5 Rc7 18. Rxc7 Nxc7 {½-½ (40) Tartakower,S-Johner,P Karlsbad 1929}) 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.22"]
[Round "6"]
[White "Garcia Palermo, Carlos"]
[Black "Hoffman, Alejandro"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2450"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,44,0,-2,-40,-18,-55,-43,-118,-127,-133,-145,-262,-261,-268,-250,-259,-243,-313,-261]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 Be7 5. Nbd2 O-O 6. b3 b6 7. Bb2 Bb7 8. Bd3 c5 9. O-O cxd4 10. exd4 Nc6 11. Rc1 Rc8 12. Qe2 Re8 13. Rfd1 Bf8 14. Nf1 g6 {LiveBook: 23 Games. E14: Queen's Indian: Classical Variation (4 e3)} 15. Bc3 $146 (15. Ne3 Bg7 16. c5 bxc5 17. dxc5 a5 18. a3 Qc7 19. Bb5 Re7 20. Bxc6 Qxc6 21. Be5 Ne4 22. Bxg7 Kxg7 23. b4 {½-½ (32) Forcen Esteban,D (2540)-Laznicka,V (2651) Monzon 2016}) 15... Ba3 16. Rb1 Nb4 {Black is slightly better.} 17. Ne5 (17. Bxb4 $15 Bxb4 18. Ne3) 17... Nxd3 $17 18. Rxd3 dxc4 19. Rh3 (19. Nxc4 $17 Bf8 20. Rdd1) 19... cxb3 $19 20. Rxb3 Bf8 21. Bb2 Bg7 22. Ne3 Nd5 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.22"]
[Round "6"]
[White "Darcyl, Tomas"]
[Black "Pichot, Alan"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2405"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,125,0,27,39,35,10,45,21,24,6,37,40,48,41,65,51,66,66,62,50,66,54,68,68,72,82,77,68,66,60,50,40,59,43,79,18,23,26,26,26,40,0,83,79,93,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-16,-16,-16,-8,-9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-33,-33,-33,-33,-33,-33,-33,-33,-33,0,0,0,-33,-33,-33,-33,-33,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. Nbd2 c5 7. dxc5 Nc6 {LiveBook: 4 Games. D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (7... Qc7 8. Nb3 e5 9. e4 Bg4 10. h3 Bxf3 11. Qxf3 Nxe4 12. Rd1 Rd8 13. c4 Na6 14. cxd5 Naxc5 15. Nxc5 Nxc5 {1-0 (51) Gajewski,G (2615)-Tomczak,J (2601) Warsaw 2017}) 8. c3 a5 9. Nd4 e5 10. Nxc6 bxc6 11. e4 $146 (11. Nf3 Ne4 12. Be3 Ba6 13. Nd2 f5 14. Nxe4 fxe4 15. Qd2 {0-1 (31) Gandolfo,A (2046)-Krysa,L (2271) Villa Martelli 2010}) 11... d4 12. cxd4 Qxd4 13. Nf3 Qxc5 14. Be3 Qe7 15. Qc2 Re8 16. Rfd1 Qb4 17. Nd2 Be6 18. Bc5 ({But not} 18. Qxc6 Rec8 19. Qb6 Ng4 $15) 18... Qb5 19. Bf1 Qb8 20. Nc4 Bf8 21. Bxf8 Rxf8 22. f3 Nd7 23. Qc3 Qa7+ 24. Qe3 ({White should try} 24. Kg2 $16) 24... Qxe3+ $11 25. Nxe3 Rfb8 26. Rd2 Rb4 27. Rc1 Nb6 (27... Rd4 $11 28. Rcd1 Bxa2) 28. Rxc6 $16 Bxa2 29. Nd5 (29. Ng4 $16) 29... Nxd5 $11 30. exd5 Rd8 31. d6 Be6 32. Rc5 Rd4 33. Rxd4 exd4 34. Rxa5 Rxd6 {[%mdl 4096] Endgame KRB-KRB} 35. Bd3 Rc6 36. Ra4 Rc1+ 37. Kf2 $1 Rh1 38. b4 ({Reject} 38. Rxd4 Rxh2+ 39. Ke3 Rxb2 $17) 38... Rxh2+ 39. Ke1 Bd5 40. f4 Rg2 41. b5 Rxg3 42. Rxd4 Bh1 43. Kd2 h5 44. b6 h4 {White must now prevent ...h3.} 45. f5 h3 {And now ...Bg2 would win.} 46. fxg6 fxg6 {[#]} 47. b7 $1 {[%mdl 512]} Bxb7 48. Rd8+ Kg7 49. Rd7+ Kh8 50. Rxb7 {KRB-KR} Rg2+ 51. Ke3 h2 52. Rb1 Rg1 53. Rb8+ Kg7 54. Be4 Re1+ 55. Kf2 Rxe4 $15 {KR-KR} 56. Kg2 Rh4 57. Kh1 Kh6 58. Rb5 g5 59. Rb2 Kh5 60. Rb8 Kg4 61. Rb4+ {The position is equal.} Kg3 {[#] ...Rf4 is the strong threat.} 62. Rxh4 Kxh4 63. Kxh2 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.23"]
[Round "7"]
[White "Mareco, Sandro"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2655"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,55,39,32,64,64,66,72,71,68,73,49,89,64,92,77,125,79,135,129,118,143,159,160,217,185,204,160,167,136,146,155,154,158,229,232,231,226,251,251,377,380,723,714]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Bg6 7. a4 {[%cal Ba2a4,Ba4a5][%mdl 32] B12: Caro-Kann: Advance Variation} Ne7 {[%cal Bg8e7,Be7c8,Bc8a7,Ba7b5][%mdl 32]} 8. a5 {LiveBook: 6 Games} a6 9. b4 {White is slightly better.} Nc8 (9... Nf5 10. c3 f6 11. Bf4 fxe5 12. dxe5 Be7 13. g4 Nh4 14. Nd4 Bf7 {1-0 (31) Caruana,F (2808)-Bareev,E (2675) Baku 2016}) 10. c3 Na7 11. Ne1 $146 (11. Bd3 Be7 12. Bxg6 hxg6 13. Re1 Nb5 14. Qd3 b6 15. axb6 Qxb6 {1-0 (57) Tabatabaei,M (2493)-Laurent Paoli,P (2305) Khanty-Mansiysk 2016}) 11... Nb5 12. Bd3 f6 13. Qc2 Kf7 14. f4 Be7 15. Nd2 {[%cal Bb1d2,Bd2f3,Bf3h4][%mdl 32]} Rf8 (15... Bxd3 $142 16. Nxd3 (16. Qxd3 f5 $14) 16... f5) 16. exf6 $16 gxf6 17. f5 exf5 18. Ndf3 ({Don't play} 18. Bxf5 $6 Nd6 $14) 18... Rg8 {[#]} (18... Nd6 $16 {is a better defense.}) 19. Nh4 $1 $18 (19. Bxf5 $6 Bxf5 20. Qxf5 Kg7 $14) 19... Nd6 20. g3 ({Don't do} 20. Nxf5 Nxf5 21. Bxf5 Kg7) 20... Nf8 21. Neg2 {[%cal Be1g2,Bg2h4,Bh4f3][%mdl 32]} Ne6 22. Nxf5 Nxf5 23. Bxf5 Qd7 (23... Ng7 $16) 24. Nh4 Rae8 25. Bh6 Bxf5 26. Qxf5 ({Much less strong is} 26. Nxf5 $6 Rg6 27. Rae1 Kg8 $16) 26... Nf8 (26... Rg6 $142) 27. Qh5+ Ng6 $2 {[#]} (27... Rg6 28. Nxg6 hxg6) 28. Nf3 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.23"]
[Round "7"]
[White "Pichot, Alan"]
[Black "Flores, Diego"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2556"]
[BlackElo "2568"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,76,20,29,83,68,94,85,94,94,89,93,92,88,79,82,132,65,67,-24,-14,-13,-13,-11,-16,0,104,118,115,0,252,111,114,12,19,19,19,19,19,0,0,0,0,0,0,-46,-21,-23,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. c3 Bc5 6. Be3 Bb6 7. Nf5 g6 {C45: Scotch Game} 8. Bxb6 axb6 9. Ne3 Nf6 10. f3 O-O 11. c4 {LiveBook: 26 Games} Nh5 (11... d5 $11 {remains equal.}) 12. Qd2 $16 f5 13. exf5 $1 (13. Nc3 f4 14. Ned5 Qh4+ 15. Qf2 {1-0 (30) Yu,Y (2729)-Bu,X (2705) Doha 2016}) 13... Qh4+ 14. Qf2 $1 {[%cal Rf2h4]} Qd4 15. Nc3 $1 Re8 16. Ne4 Nf6 $146 (16... Ra3 17. Nd5 Qe5 18. fxg6 Nf6 19. Qh4 Nh5 20. Qxh5 {1-0 (20) Antal,G (2547)-Cruz,J (2433) Barcelona 2017}) 17. Bd3 d5 {[#]} 18. cxd5 (18. Nxf6+ $1 $16 Qxf6 19. O-O (19. cxd5 Nb4 20. Rd1 Bd7 $15)) 18... Nb4 $14 19. Bb1 (19. Rd1 $14 Nxd3+ {[#]} 20. Rxd3 $1 {[%mdl 512]} Qxd3 21. Nxf6+ Kf8 22. Nxe8 Kxe8 23. fxg6 Rxa2 24. Qd2 Ra1+ 25. Nd1 Qxd2+ 26. Kxd2 hxg6 27. Re1+ Kd8 28. Re5) 19... Nxe4 $11 (19... Nfxd5 $2 20. Nxd5 Qxd5 21. O-O $18) 20. fxe4 Nd3+ 21. Bxd3 $1 Qxd3 22. fxg6 Bf5 (22... hxg6 $11 23. Qg3 (23. Rf1 Bf5 24. Qd2 Qxe4 $17) 23... Qxe4) 23. gxh7+ $16 (23. Qxf5 $6 Qxe3+ 24. Kd1 Qd4+ 25. Kc1 Qc4+ 26. Kd2 Qd4+ 27. Kc1 Qc4+ 28. Kd2 Qd4+ 29. Kc2 Rf8 30. Qe6+ Kh8 $11) 23... Bxh7 24. e5 ({White should play} 24. Rf1 $16 Rxe4 25. Qf7+ Kh8 26. Qf6+ Kg8 27. Qg5+ Kh8 28. Rf3 (28. Qf6+ Kg8 29. Qg5+ Kh8 $14)) 24... Rxa2 $2 {[%mdl 8192]} (24... Ra3 $1 $11 25. Qg3+ (25. bxa3 $2 Qc3+ 26. Qd2 Qxa1+ 27. Qd1 Qxe5 $19) 25... Kh8 26. bxa3 Qc3+ 27. Ke2 Bd3+ 28. Kd1 (28. Kf3 Rf8+ 29. Kg4 Rg8+ 30. Kf3 Rf8+ 31. Kg4 Rg8+ 32. Kh4 Rxg3 33. hxg3 Qxe5 $11) 28... Qxa1+ 29. Kd2 Qxh1 30. Qh4+ (30. Kxd3 Qb1+ 31. Kd4 Qb2+ 32. Ke4 Qb1+ 33. Kd4 Qb2+ 34. Ke4 Qb1+ 35. Kd4 $11) 30... Bh7 31. Qf6+ Kg8) 25. Rd1 ({Inferior is} 25. Rxa2 Qb1+ 26. Ke2 Qd3+ 27. Ke1 Qb1+ 28. Ke2 Qd3+ 29. Ke1 Qb1+ 30. Ke2 $11) (25. Qg3+ $18 {and the rest is easy.} Kh8 26. Rxa2 Qb1+ 27. Nd1 Qxa2 28. O-O Qxd5 29. Ne3) 25... Qb5 26. e6 (26. Rf1 $16 {Qf7+ is the strong threat.} Qa5+ 27. Qd2 Rxe5 28. Kf2) 26... Rxb2 $11 27. Rd2 Rxd2 $1 28. Qxd2 Qb1+ 29. Qd1 Qb4+ 30. Kf2 Rf8+ 31. Kg1 {Threatens to win with h4.} Qc3 {[%cal Rc3e3]} 32. Qe2 Qa1+ {[%mdl 1024] Black has compensation.} 33. Qd1 $1 {[%cal Rd1a1]} Qc3 {[%cal Rc3e3]} 34. Qe2 {The position is equal.} Qc1+ (34... Qa1+ $5 35. Qd1 $8 Qc3 $11) 35. Nd1 Qc5+ 36. Ne3 {Hoping for h4.} Qc1+ 37. Nd1 {Strongly threatening h4.} Qc5+ 38. Ne3 {Black must now prevent h4.} Qc1+ 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.23"]
[Round "7"]
[White "Morovic Fernandez, Ivan"]
[Black "Bachmann, Axel"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2527"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,88,17,5,14,0,0,0,2,14,18,0,65,58,83,30,103,0,0,0,0,0,0,-16,-16,-16,0,0,0,-15,64,-85,-86,-90,-77,-77,-4,-4,-7,-9,-7,-49,0,-23,-28,-241,-251,-191,0,0,0,0,0,0,0,0,0,0,0,0,4,0,14,12,14,14,15,14,13,2,2,0,25,0,8]} 1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 b6 5. O-O Bb7 6. Nbd2 Nc6 7. c3 d5 8. Re1 Be7 {D05: Colle System with ...e6} 9. dxc5 {LiveBook: 3 Games} bxc5 10. e4 Qc7 11. exd5 exd5 12. Nf1 O-O 13. Bg5 Rfe8 (13... Ne4 $11 14. Bxe7 (14. Bxe4 dxe4 15. Rxe4 Bxg5 16. Nxg5 h6 $11) 14... Nxe7) 14. Ne3 $1 $14 d4 {[#]} 15. Nf5 (15. cxd4 $1 $16 Nxd4 16. Nxd4 cxd4 17. Nf5) 15... dxc3 $146 (15... Ng4 $11 16. Qd2 (16. Nxe7+ Nxe7 17. Be4 Ng6 18. Bxb7 Qxb7 $11) 16... Bf8) (15... Nd5 16. Nxe7+ Ndxe7 17. cxd4 Nxd4 18. Nxd4 cxd4 {1-0 (38) Kovacevic,V (2555)-Rajkovic,D (2440) Pula 1984}) 16. Nxe7+ (16. bxc3 $16 {aiming for Qa4.} h6 17. Bh4 (17. Nxe7+ Rxe7 18. Bxf6 gxf6 $16)) 16... Nxe7 $11 17. Bxf6 gxf6 18. bxc3 Ng6 19. Rxe8+ Rxe8 {[%cal Ba8e8,Be8e4,Be4f4][%mdl 32]} 20. Qa4 Bc6 21. Bb5 $1 {[%cal Rb5c6]} Re4 22. Qa6 Bb7 (22... Ba8 $11) 23. Qxf6 (23. Qxa7 $14 {is the one way to stay ahead.} Re7 24. Rb1) 23... Rf4 $17 24. Qg5 Bxf3 25. gxf3 Rxf3 (25... Qb7 $17 26. Be2 (26. Qxc5 $2 Qxf3 27. Bd7 f5 28. Be6+ Kg7 29. Bxf5 Rxf5 $19) 26... Qb2) 26. Rd1 $132 {[%mdl 2048] White puts up resistance (4)} Kg7 27. Rd3 $1 {[%cal Rd3f3]} Rf4 28. Rh3 ({Of course not} 28. Rd7 Qb6 29. Be2 Qb2 $17) 28... Qd6 29. Qh5 c4 30. Qh6+ $2 ({Wrong is} 30. Qxh7+ $2 Kf6 31. Bxc4 Rxc4 32. Rf3+ Rf4 33. Rxf4+ Qxf4 $19) (30. Qe2 $11) 30... Kf6 $19 {[#] Strongly threatening ...Qd1+.} 31. Rg3 Qd2 $2 (31... Qd1+ $19 32. Kg2 Qd5+ 33. f3 Qd2+ 34. Kf1 Ke5 35. Qxh7 Qd3+ 36. Kf2 Qd2+ 37. Kf1 Qd3+ 38. Kg1 Qb1+ 39. Kf2 Qc2+ 40. Kf1 Kd6 41. Rxg6+ Qxg6 42. Qxg6+ fxg6) 32. Qg5+ $11 Kg7 {And now ...Qe1+ would win.} 33. Qe5+ $1 Rf6 34. Qd4 Qxd4 35. cxd4 {[%mdl 4096] Endgame KRB-KRN} Rd6 36. Bxc4 Rxd4 37. Bb3 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 38. Kf1 a4 39. Bc2 Rc4 40. Bd1 Rd4 41. Ke1 Re4+ 42. Kd2 Rd4+ 43. Ke1 Re4+ 44. Kd2 Rd4+ 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.23"]
[Round "7"]
[White "Hoffman, Alejandro"]
[Black "Darcyl, Tomas"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2488"]
[BlackElo "2405"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,30,18,0,21,15,18,17,15,10,11,-5,4,2,4,7,6,-16,27,30,46]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Bg7 5. Bxf6 Bxf6 6. cxd5 c6 7. dxc6 {LiveBook: 29 Games. D80: Grünfeld: Unusual White 4th moves and 4 Bg5} Qxd4 ({But not} 7... Nxc6 8. e3 $16) (7... Bxd4 $5 {with more complications.} 8. cxb7 Bxb7 9. Rc1 Qb6 10. e3 Bxc3+ 11. Rxc3 Qxb2 12. Rb3 Qxa2 13. Rxb7 Qa5+) 8. Qxd4 Bxd4 9. cxb7 {[%cal Rb7c8] [#] The position is equal.} Bxc3+ 10. bxc3 {[%cal Rb7c8]} Bxb7 11. e3 O-O 12. Rb1 $146 (12. Nf3) 12... Be4 13. Rb4 Bd5 14. c4 Nc6 15. Rb5 Be6 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.23"]
[Round "7"]
[White "Sosa, Tomas"]
[Black "Granda Zuniga, Julio E"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2658"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,105,20,7,7,13,32,1,6,5,6,0,0,0,0,0,0,-8,0,0,0,-2,0,-9,0,-16,0,-14,13,-12,-12,-12,-12,-12,-12,-29,-12,-23,14,-23,-24,-24,-23,-27,-24,-25,-17,-35,-29,-52,-54,-48,-55,-54,-39,-54,-37,-54,-57,-57,-56,-53,-57,-60,-60,-60,-51,-50,-50,-60,-50,-67,-8,-64,-8,-8,-8,-52,-52,-52,-52,-52,-52,-52,-52,-125,-125,-125,-125,-125,-125,-125,-125,-125,-125,-125,-125,-125]} 1. Nf3 d5 2. c4 d4 3. b4 c5 4. e3 dxe3 5. fxe3 cxb4 {A09: Réti Opening: 1 Nf3 d5 2 c4} 6. a3 {LiveBook: 3 Games} (6. d4 Nf6 7. Bd3 g6 8. a3 bxa3 9. O-O Bg7 10. Bxa3 O-O 11. Nc3 Nc6 12. h3 b6 13. Qe2 Bb7 14. Rac1 {1-0 (30) Mareco,S (2664)-Nakamura,H (2793) chess.com INT 2017}) 6... e6 7. d4 bxa3 $146 {The position is equal.} (7... Nf6 8. Bd3 Nc6 9. O-O e5 10. Bc2 Bd6 11. Qe1 b3 12. Bxb3 e4 13. Nfd2 {1-0 (27) Sulskis,S (2497)-Skytte,R (2323) Lisbon 2000}) 8. Bd3 Bb4+ 9. Nbd2 Nc6 10. O-O Nf6 11. Bxa3 Bxa3 12. Rxa3 O-O $1 13. Ne4 Nxe4 14. Bxe4 Bd7 15. Qb3 f5 16. Bc2 b6 17. e4 Na5 18. Qd3 Qc7 19. Ne5 {[%cal Re4f5]} Nc6 20. Nxc6 ({Much weaker is} 20. Nxd7 Qxd7 21. Rd1 Rad8 $17) 20... Qxc6 21. exf5 exf5 22. Bd1 {Black should prevent Bf3.} Qc7 23. Bf3 Rac8 24. c5 bxc5 25. Qc4+ Kh8 {Threatening ...Qb6.} 26. Qxc5 Qxc5 27. dxc5 Bb5 28. Rfa1 a6 29. Bb7 Rxc5 30. Bxa6 Bc6 31. Be2 g5 32. Bf3 Be8 33. Ra8 {[#] Hoping for Re1.} Kg7 34. h3 Bg6 35. Rxf8 $1 Kxf8 $15 {[%mdl 4096] Endgame KRB-KRB} 36. Ra7 h5 37. Kf2 g4 38. hxg4 hxg4 39. Bd1 Rc3 40. Ra4 g3+ (40... Ke7 $15) 41. Ke1 (41. Ke2 $1 $11) 41... Re3+ ({Black should play} 41... Rc7 $15) 42. Kd2 $11 Re5 43. Ra3 f4 44. Bf3 Kg7 45. Ra4 Rf5 46. Be4 Be8 $1 {[%cal Re8a4]} 47. Bxf5 ({Better is} 47. Ra7+ $15 Rf7 48. Ra2) 47... Bxa4 $15 {KB-KB. Black is better.} 48. Ke2 Kf6 49. Bd3 Ke5 50. Kf1 Kd4 51. Ba6 Bc6 52. Kg1 Ke3 53. Bc4 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.23"]
[Round "7"]
[White "Van Riemsdijk, Herman C"]
[Black "Slipak, Sergio"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2318"]
[BlackElo "2465"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,131,51,54,21,39,29,39,39,31,26,70,-20,-15,-7,31,-69,-6,-12,-8,-27,-13,-26,-23,-35,-20,-20,-20,-20,-17,-20,-20,-20,-21,-22,-20,-16,-16,-16,-8,-16,-16,-31,-7,-7,-7,-7,-7,-8,0,-2,-2,-8,-2,-43,-43,-30,-4,-30,-31,-135,-135,-135,-135,-137,-135,-135,-135,-1987,-1606,-29953,-29957,-29957,-29961,-29962,-29964,-29963,-29958,-29962,0,-29963,-29964,-29964,-29966,-29968,-29966,-29963,-29967,-29968,0,0,0,-29967,-29964,-29974,-29969,-29978,-29979,-29980,-29980,-29980,0,0,0,0,0,0,0,0,0,-5102,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 5. c3 g6 6. d4 {C70: Ruy Lopez: 3...a6 4 Ba4, Norwegian and Delayed Schliemann} exd4 7. Nxd4 (7. cxd4 b5 8. Bb3 Bg7 9. d5 Na5 10. Bd2 c5 11. d6 Nec6 12. Bg5 {½-½ (12) Bobras,P (2524)-Movsesian,S (2677) Czech Republic 2017}) 7... Bg7 8. Bg5 O-O 9. O-O h6 10. Nxc6 bxc6 {LiveBook: 5 Games} 11. Bh4 Rb8 12. Bb3 d5 $146 (12... g5 13. Bg3 Ng6 14. Qh5 Nf4 15. Bxf4 gxf4 16. h4 {1-0 (61) Diaz,R (2306)-Henriquez,C (2219) Santiago de Chile 2011}) 13. Re1 g5 14. Bg3 Be6 15. exd5 (15. Nd2 $14) 15... cxd5 $11 16. Nd2 Rb6 17. Be5 (17. Nf3 $14) 17... c5 ({Black should play} 17... Bxe5 $15 18. Rxe5 c5) 18. Bxg7 Kxg7 19. Nf1 Nf5 20. Qd2 c4 21. Bd1 d4 22. b3 dxc3 23. Qxc3+ Qd4 24. Qxd4+ Nxd4 25. bxc4 Bxc4 26. Nd2 Be6 27. Nb3 Rd8 {[%cal Re6b3]} 28. h3 Nxb3 29. Bxb3 Rd2 30. Re3 Bxb3 31. axb3 $15 {[%mdl 4096] Endgame KRR-KRR} Rf6 32. Rf3 Rxf3 33. gxf3 $11 {KR-KR} Rd6 34. Kg2 Rb6 35. Ra5 Kg6 36. Rd5 f6 37. Ra5 h5 38. h4 gxh4 {[%cal Bg5h4,Bh4h3][%mdl 32]} 39. f4 (39. Ra3 $15) 39... Rxb3 $17 40. Rxa6 h3+ 41. Kh2 Rf3 42. Ra2 Kf5 43. Rb2 $2 {[%mdl 8192]} (43. Ra6 $17) 43... Kxf4 $19 44. Ra2 f5 45. Rb2 Kg4 46. Rb4+ f4 47. Rb2 Kg5 48. Rc2 Kg4 $2 (48... Rb3 49. Rc6 Kg4 50. Rc2 Rb1 51. Ra2 Rf1 52. Rb2 Kf3 53. Rb7 Kxf2 54. Rb4 Kf3 55. Rb7 Re1 56. Ra7 Kf2 57. Ra5 f3 58. Rxh5 Ke2 59. Re5+ Kf1 60. Ra5 Rb1 61. Rh5 Ke2 62. Re5+ Kd2 63. Rf5 Ke3 64. Re5+ Kf4 65. Re7 f2 66. Rf7+ Ke3 67. Re7+ Kd3 68. Rd7+ Kc4 69. Rf7 f1=Q 70. Rxf1 Rxf1 71. Kxh3 Rg1 72. Kh2 Rg6 73. Kh3 Kd3 74. Kh4 Ke4 75. Kh5 Kf5 76. Kh4 Kf4 77. Kh3 Rg8 78. Kh2 Kf3 79. Kh1 Kf2 80. Kh2 Rh8#) 49. Ra2 $2 {[%mdl 8192] [#]} (49. Rb2 $11 Rc3 50. Rd2) 49... Rb3 50. Rc2 Rb1 51. Ra2 Rf1 52. Rb2 Kf3 53. Rb3+ Ke2 $2 (53... Kxf2 54. Ra3 Rd1 55. Rxh3 f3 56. Rxh5 Ke3 57. Re5+ Kf2 58. Rb5 Ke1 59. Kg3 f2 60. Re5+ Kf1 61. Rf5 Rd3+ 62. Kh2 Re3 63. Ra5 Ke2 64. Ra2+ Kf3 65. Ra1 Re1 66. Ra3+ Kf4 67. Ra4+ Kf3 68. Ra3+ Kf4 69. Ra4+ Kf3 70. Ra3+) 54. Rb2+ $11 Kf3 $2 {[%mdl 8192] [#]} (54... Ke1 $11 55. Kxh3 Rxf2 56. Rb1+ Ke2 57. Rb2+ Ke1 58. Rb1+ Kd2) 55. Rb3+ $1 Kxf2 56. Rxh3 Rg1 57. Rxh5 Rg8 58. Rh7 f3 59. Rh6 Kf1 $2 (59... Rf8 {mates} 60. Rh5 Ke2 61. Re5+ Kf1 62. Re6 f2 63. Re3 Rh8+ 64. Kg3 Kg1 65. Rf3 Rg8+ 66. Kh3 f1=Q+ 67. Rxf1+ Kxf1 68. Kh4 Kf2 69. Kh3 Kf3 70. Kh4 Kf4 71. Kh5 Rg4 72. Kh6 Kf5 73. Kh5 Rd4 74. Kh6 Rd7 75. Kh5 Rh7#) 60. Ra6 $1 Rg2+ (60... f2 $5 61. Ra1+ $8 Ke2 62. Ra2+ Ke1 63. Ra1+ Kd2 $11) 61. Kh3 Re2 (61... Rb2 $5 62. Kg3 $8 f2 63. Ra1+ Ke2 $11) 62. Kg3 $1 f2 63. Kf3 $1 Re7 {Strongly threatening ...Rf7+.} (63... Kg1 $5 64. Rg6+ $8 Kf1 $11) 64. Ra1+ Re1 65. Ra2 Kg1 66. Rxf2 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Granda Zuniga, Julio E"]
[Black "Slipak, Sergio"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2658"]
[BlackElo "2465"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,57,19,28,16,10,13,26,30,41,38,61,60,93,95,93,52,63,56,102,100,119,117,105,104,150,150,155,149,352,318,195,50,751,-20,677,674]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bf4 Nc6 8. Qd2 Be6 9. O-O-O Qd7 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 10. Ng5 (10. h3 Bf6 11. g4 h6 12. Bg2 O-O-O 13. b3 Rde8 14. Rhe1 Kb8 15. Be3 a6 16. Ng1 g5 17. Ne2 h5 18. f3 {½-½ (73) So,W (2770)-Wei,Y (2696) Bilbao 2016}) 10... Bxg5 11. Bxg5 f6 12. Be3 O-O-O {LiveBook: 26 Games} ({Wrong is} 12... Bxa2 $2 13. b3 $18) 13. Bb5 a6 ({Not} 13... Bxa2 $2 14. b3 $18) 14. Be2 {[#]} Ne5 $146 ({Don't take} 14... Bxa2 $2 15. b3 $18) (14... Bg4 15. f3 Be6 16. Rhe1 Rhe8 17. Bf1 {½-½ (32) Czarnota,P (2537)-Fridman,D (2661) Germany 2010}) 15. b3 Ng4 16. Bd4 h5 17. f4 h4 18. h3 Nh6 19. Bf3 Nf5 20. Bf2 d5 21. Rhe1 Rhe8 22. Bh5 Rh8 23. Bg4 Rde8 {[#]} 24. c4 $1 {[%cal Rc4d5]} d4 25. c3 c5 $2 (25... d3 $16 {was necessary.} 26. Qxd3 Qxd3 27. Rxd3 g6) 26. cxd4 $18 {Threatens to win with d5.} cxd4 27. Rxe6 ({Better is} 27. Re4 $18) 27... Rxe6 $4 {[%mdl 8192] [#]} (27... Qxe6 $14 28. Qa5 g6) 28. Bxd4 $2 (28. Bxf5 $18 Rhe8 29. Bxh4) 28... Nxd4 $4 {[%mdl 8192]} (28... g6 $11 29. Bc3 Qxd2+ 30. Rxd2 Kc7) 29. Qxd4 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Bachmann, Axel"]
[Black "Pichot, Alan"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,95,-20,-16,-42,18,0,5,-44,0,0,0,-11,34,0,0,0,0,0,0,0,0,0,0,0,0,-41,-10,-75,-42,-57,-61,-77,0,-68,-61,-89,-94,-83,-43,-54,-60,-47,-47,-55,-15,-25,-8,-8,-8,-8,-8,-14,-15,-15,-15,-15,-14,-44,-24,-77,-77,-79,-81,-430,-430,-422,-422,-489,-489,-489]} 1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 Nf6 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. e5 Nd7 9. Re1 b5 10. Nf1 a5 11. h4 b4 12. Bf4 a4 13. a3 bxa3 14. bxa3 Ba6 15. h5 {C00: French: Unusual White 2nd moves} (15. Ne3 Rb8 16. Bh3 Nd4 17. Nxd4 cxd4 18. Nxd5 exd5 19. e6 Nf6 20. exf7+ Rxf7 21. Bxb8 Qxb8 22. Be6 Bc8 {½-½ (55) Yu,Y (2737)-Jakovenko,D (2710) Moscow 2016}) 15... Rc8 (15... h6 $15) 16. Ne3 Nd4 17. Nd2 $146 {The position is equal.} (17. Ng4 Qb6 18. h6 g6 19. Qd2 Rfe8 20. Rab1 Qa7 21. Be3 Nb5 22. Ra1 d4 {½-½ (58) Tian,T (2303)-Zhang,X (2191) China 2005}) 17... Bg5 (17... Rb8 $5 {feels hotter.} 18. c4 Bg5 19. Bxg5 Qxg5 20. cxd5 Nxe5 21. f4 Qxg3 22. fxe5 Bxd3 23. Ndf1 Bxf1 24. Nxf1 Qg5) 18. Bxg5 Qxg5 19. c3 Nxe5 20. cxd4 cxd4 21. Nxd5 $1 {[#] Black must now prevent Nb4.} Nxd3 22. Ne4 Qd8 ({Wrong is} 22... Qxd5 $2 {[#]} 23. Nf6+ $1 {[%mdl 512]} gxf6 24. Bxd5 exd5 25. Qg4+ Kh8 26. Qxd4 $18) 23. Nb4 Nxe1 24. Qxe1 Bb5 25. h6 gxh6 26. Nd2 Qf6 27. Qe4 (27. Rb1 $11) 27... Rfd8 28. Re1 d3 29. Rd1 Qb2 ({Better is} 29... Rd7 $17) 30. Qg4+ ({White should try} 30. Qf4 $11) 30... Qg7 $1 $15 {[%cal Rg7g4]} 31. Qh5 Qg5 32. Qf3 Qg6 33. Qb7 Qh5 $1 {[%cal Rh5d1]} 34. Bf3 Qe5 35. Kg2 Rc7 36. Qb6 Qc5 37. Qa5 $1 {Ne4 is the strong threat.} Be8 38. Qxc5 Rxc5 39. Ne4 Rc7 {Black wants to play ...Bb5.} 40. Nf6+ ({Of course not} 40. Nxd3 Bc6 41. Nf6+ Kg7 42. Nh5+ Kf8 $17) 40... Kf8 {Strongly threatening ...Rc3.} 41. Nxe8 ({But not} 41. Rxd3 $2 Rxd3 42. Nxd3 Rc3 $19) (41. Nxd3 $2 Rc3 42. Nb4 Rxd1 43. Bxd1 Rxa3 $19) 41... Kxe8 42. Bc6+ Kf8 43. Bxa4 (43. Kf3 $11 {remains equal.}) 43... Rc3 $17 44. Bb5 d2 45. a4 $2 {[%mdl 8192]} (45. Be2 $17 {is a better chance.}) 45... Rc1 $19 {Black is clearly winning.} 46. Be2 Rd4 47. Na6 {If White can now play f3 this consolidates a bit.} Rxd1 48. Bxd1 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Bachmann, Axel"]
[Black "Pichot, Alan"]
[Result "*"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,29,-15,0,-5]} 1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 Nf6 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. e5 Nd7 9. Re1 b5 10. Nf1 a5 11. h4 b4 12. Bf4 a4 13. a3 bxa3 14. bxa3 Ba6 15. h5 {C00: French: Unusual White 2nd moves} Rb8 $146 16. N1h2 Nd4 17. Nxd4 cxd4 18. Qg4 Kh8 19. h6 g6 20. Nf3 Qb6 21. Bd2 Bc5 22. Qf4 Qb2 {1-0 (42) Balogh,C (2660)-Horvath,A (2539) Bastia 2014} *

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Flores, Diego"]
[Black "Hoffman, Alejandro"]
[Result "*"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,23,25,27]} 1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. e3 Nc6 8. Bb2 b6 9. Nc3 Bb7 10. cxd5 Nxd5 11. Nxd5 Qxd5 12. d4 {LiveBook: 159 Games} Qf5 $146 13. Ne5 Nxe5 14. Bxb7 Rad8 15. Qb1 Nd3 16. Ba3 a5 17. Bg2 Nb4 18. Be4 Qh5 19. Bb2 Bf6 20. a3 {½-½ (40) Gordievsky,D (2564)-Berkes,F (2648) Moscow 2017} *

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Flores, Diego"]
[Black "Hoffman, Alejandro"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 32,55,203,191,221,204,213,174,447,259,257,258,255,219,572,571,565,563,662,659,957,957,957,649,630,622]} 1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. e3 Nc6 8. Bb2 b6 9. Nc3 Bb7 10. cxd5 Nxd5 11. Nxd5 Qxd5 12. d4 Rad8 13. Ne5 Qd6 14. dxc5 Qxc5 15. Nd7 {A14: English Opening: 1...e6 with b3 by White} Qg5 16. h4 Qh6 17. Rc1 {[%cal Ba1c1,Bc1c7,Bc7c6,Bc6d6][%mdl 32] LiveBook: 9 Games. White is clearly better.} e5 (17... Na5 18. Rc7 Bxg2 19. Kxg2 Rfe8 20. Qf3 e5 21. Nxe5 Qe6 22. Rxa7 f6 {1-0 (60) Howell,D (2650)-Neiksans,A (2572) Tromsoe 2014}) 18. Qg4 Rfe8 19. Rfd1 (19. Nxe5 $6 Nxe5 20. Bxe5 Bxg2 21. Kxg2 Bc5 $16) 19... Bf8 $2 {[#]} (19... Rc8 20. Bd5 (20. Nxe5 Nxe5 21. Bxe5 Rxc1 22. Rxc1 Bxg2 $18) 20... Qg6 21. Qxg6 (21. Nxe5 Qxg4 22. Nxg4 Ba8 $16) 21... hxg6 22. Nxe5 Nxe5) 20. Bd5 $146 (20. Nxf8 $142 Rxf8 21. Ba3) (20. Qa4 Na5 21. Bxb7 Nxb7 22. Qxa7 Nc5 23. Nxc5 Bxc5 24. Rxd8 Rxd8 {1-0 (50) Pavlovic,M (2488)-Bokros,A (2472) Kragujevac 2015}) 20... Na5 $18 21. Bxb7 Nxb7 22. Rc7 ({Resist} 22. Bxe5 $6 Qg6 23. Qxg6 hxg6 24. Nxf8 Rxd1+ 25. Rxd1 Kxf8 $16) 22... Nd6 $2 (22... Nc5 {is tougher.} 23. Nxe5 Rxd1+ 24. Qxd1 Qd6 25. Qxd6 Bxd6 26. Rxa7 b5) 23. Nxf8 {White is clearly winning.} (23. Rxa7 Re7 $16) 23... Kxf8 24. Rc6 ({Less strong is} 24. Rxa7 Qf6 25. Rd3 Kg8 $18) 24... Re6 25. Ba3 Ke7 26. Rdxd6 Rexd6 27. Rxd6 Rxd6 28. Qc8 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Sosa, Tomas"]
[Black "Morovic Fernandez, Ivan"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2527"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,88,-10,0,-19,-4,-37,-39,-35,-33,-92,-64,-95,-75,-104,-104,-104,-87,-124,-113,-129,-122,-182,-181,-163,-188,-170,-170,-179,-162,-184,-81,-78,-14,-31,-33,-82,-85,-96,-93,-114,-83,-98,-87,-183,-208,-237,-244,-225,-165,-270,-154,-189,-190,-119,0,0,-26,-139,-125,-629,-643,-1668,-1648,-1620,-1369,-1633,-1578,-3460,-3362,-3133,-3097]} 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. b3 Be7 6. Bb2 O-O 7. d3 d5 8. Nbd2 c5 9. e3 Nc6 {A05: Réti Opening: 1 Nf3 Nf6} 10. Qe2 Qc7 {LiveBook: 9 Games} 11. a3 (11. e4 dxe4 12. dxe4 e5 13. c3 a5 14. a4 Ba6 15. Nc4 b5 16. axb5 Bxb5 17. Nfd2 {1-0 (50) Nakamura,H (2735)-Simonian,H (2521) ICC INT 2010}) 11... Rad8 {The position is equal.} 12. Rac1 $146 (12. Rfe1 e5 13. e4 d4 14. h3 b5 15. Nh4 g6 16. Bc1 Ne8 {0-1 (43) Andries,C (1953)-Winslow,E (2293) San Francisco 2012}) 12... e5 13. c4 d4 14. e4 (14. exd4 $15 Nxd4 15. Nxd4 exd4 16. Bxb7 Qxb7 17. f3) 14... g6 15. Ng5 Nh5 16. Nh3 Bc8 17. f3 Be6 18. Rf2 Rb8 19. Qf1 b5 20. f4 (20. cxb5 $17 Rxb5 21. a4) 20... exf4 $19 21. Nxf4 Nxf4 22. gxf4 bxc4 23. dxc4 Bh4 24. Rf3 f5 (24... Bg4 $19 25. Rd3 g5) 25. e5 $17 Rb6 (25... Qd7 $17) 26. Rh3 Be7 27. Bd5 Qd7 28. Qg2 Rd8 29. Bf3 Bf8 30. Kh1 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 31. Rg1 {[#]} (31. Bh5 $17) 31... a4 $1 $19 32. Rxh7 Qxh7 33. Bxc6 axb3 34. Bf3 (34. a4 $142) 34... Bf7 (34... Be7 $19 35. Qxg6+ Qxg6 36. Rxg6+ Kf7) 35. Qg5 $17 Re8 36. Qxf5 Be7 ({Better is} 36... Kh8 $17 37. Qg4 g5) 37. Qd7 $11 Kf8 $36 {[%mdl 2048] Black has some pressure.} 38. Ne4 (38. Qc7 $11 {remains equal.} Rbb8 39. Be4) 38... Qh4 $17 39. Bg4 $2 {[%mdl 8192]} (39. Qc7 $17 Qxf4 40. Bg2) 39... Bxc4 $19 {[#] aiming for ...Rd8.Black is clearly winning.} 40. Qc7 Bd5 41. Bf3 Rb7 42. Qa5 Qxf4 43. Rg3 Bxe4 44. Kg2 Kg7 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Sosa, Tomas"]
[Black "Morovic Fernandez, Ivan"]
[Result "*"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2527"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,19,-2,-23]} 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O e6 5. b3 Be7 6. Bb2 O-O 7. d3 d5 8. Nbd2 c5 9. e3 Nc6 {A05: Réti Opening: 1 Nf3 Nf6} 10. Qe2 {LiveBook: 9 Games} Qc7 $146 11. e4 dxe4 12. dxe4 e5 13. c3 a5 14. a4 Ba6 15. Nc4 b5 16. axb5 Bxb5 17. Nfd2 {1-0 (50) Nakamura,H (2735)-Simonian,H (2521) ICC INT 2010} *

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Garcia Palermo, Carlos"]
[Black "Van Riemsdijk, Herman C"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2450"]
[BlackElo "2318"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,119,15,9,31,27,38,43,29,38,22,16,12,13,26,12,77,27,24,10,60,27,26,26,55,55,55,55,55,53,52,53,52,52,55,55,63,62,62,63,62,62,74,70,77,63,63,63,68,56,65,62,80,80,86,85,86,81,83,78,83,70,68,4,4,0,0,0,61,61,60,35,79,83,84,83,80,83,91,91,91,91,91,75,75,75,75,75,75,75,75,75,75,75,75,8,8,8,8,8,8,8]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Be4 11. Qc1 c5 {E05: Open Catalan: 5 Nf3 Be7} 12. dxc5 Nbd7 13. b4 a5 {White is slightly better.} 14. Nc3 axb4 15. Nxe4 (15. Nxb5 Bxc5 16. Nbd4 Qb6 $17) 15... Nxe4 16. Bxb4 {aiming for Nd4.} Bxc5 17. Qb1 {[#]} Qe7 $146 (17... Bxb4 $11 18. Qxb4 (18. Qxe4 Ra4 $11) 18... Ndc5) (17... Bxb4 18. Qxb4 Ndf6 19. Qxb5 {½-½ (44) Khenkin,I (2605)-Fridman,D (2629) Dortmund 2013}) 18. Qxe4 {Black must now prevent Bxc5.} Bxb4 19. Rab1 Ra4 20. Nd4 {Strongly threatening Nc6.} Bc3 (20... Rxa2 $2 21. Nc6 (21. Nxb5 Bc5 $11) 21... Qc5 22. Rxb4 $18) 21. Nc6 Qc5 22. Qd3 Ne5 23. Nxe5 Bxe5 24. Rxb5 Qc3 25. Qxc3 Bxc3 26. Rc1 Bf6 27. Rc2 $1 Ra7 28. Rb7 Rxb7 29. Bxb7 $14 {[%mdl 4096] Endgame KRB-KRB} Rb8 30. a4 {And now a5 would win.} Bd8 31. Ba6 Bb6 32. h4 Kf8 33. Kg2 Ke7 34. f4 Rd8 35. Bb5 f6 36. Bd3 h6 37. Rb2 Ba5 38. Kf3 Rd4 39. Rb7+ Rd7 40. Rb1 Rd4 41. Kg4 (41. Bb5 $14) 41... f5+ $11 42. Kh5 Kf6 43. Rb8 Rd8 (43... Rxa4 $6 44. Rf8+ Ke7 45. Ra8 $16) ({Black should play} 43... Be1 $11 44. Rf8+ Ke7) 44. Rxd8 $14 Bxd8 {KB-KB} 45. g4 fxg4 46. Kxg4 g6 47. h5 $1 gxh5+ 48. Kxh5 Ba5 49. e4 {[%cal Be2e4,Be4e5][%mdl 32]} Bd2 50. e5+ Ke7 51. Kg4 ({Of course not} 51. Kxh6 $6 Bxf4+ 52. Kh5 Bxe5 $11) 51... h5+ {[#]} 52. Kf3 $1 ({But not} 52. Kxh5 Bxf4 53. Kh4 Bxe5 $11) 52... h4 {[#]} 53. Bf1 $1 Kd7 54. Bh3 Bb4 55. Ke4 Bd2 56. f5 exf5+ 57. Kd5 ({Better is} 57. Bxf5+ $16 Kc6 58. e6) 57... Kc7 $11 {The position is equal.} 58. e6 Bg5 ({Don't play} 58... Kd8 $6 59. Bxf5 Bb4 60. Kc6 $16) 59. Bxf5 Kb6 60. a5+ 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.24"]
[Round "8"]
[White "Darcyl, Tomas"]
[Black "Mareco, Sandro"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2405"]
[BlackElo "2655"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,60,18,3,23,13,17,-28,-12,-26,-25,-31,-31,-29,-29,-44,-33,-53,-59,-143,-62,-76,-77,-68,-64,-285,-41,-154,-122,-152,-170,-170,-147,-152,-152,-194,-143,-141,-131,-140,-143,-137,-138,-335,-333,-540,-542,-541,-541,-1054,-1044]} 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. d3 Be7 6. e4 O-O 7. Re1 d6 {A05: Réti Opening: 1 Nf3 Nf6} 8. Nbd2 Nbd7 9. e5 $146 (9. Nf1 Re8 10. h3 e5 11. g4 Nf8 12. Ng3 Ng6 13. c3 a6 14. g5 Nd7 15. h4 {0-1 (81) Rzayev,B (2411)-Kotsur,P (2552) Nakhchivan 2013}) 9... dxe5 {Black has an edge.} 10. Nxe5 Bxg2 11. Kxg2 Nxe5 12. Rxe5 Nd5 13. a4 a6 14. Qf3 Nb4 15. axb5 {[#]} (15. Qd1 $1 $15) 15... Nxc2 ({Black should try} 15... Bd6 $1 $17 {[%cal Rd6e5]} 16. Re4 axb5 17. Rxa8 Qxa8) 16. Rxa6 $15 Rb8 17. Nc4 Bf6 $36 {[%mdl 2048] Black has the initiative.} 18. Re2 $2 (18. Re4 $15) 18... Nb4 $2 (18... Nd4 $19 19. Qg4 Nxe2 20. Qxe2 Rxb5) 19. Na5 (19. Ra5 $15) 19... Qd7 ({Don't take} 19... Rxb5 20. Nc6 Qxd3 21. Nxb4 Qxf3+ 22. Kxf3 $17) 20. Nc6 Nxa6 21. bxa6 Rb6 22. Rc2 Rxa6 23. Bf4 Rb6 (23... Ra1 $19 24. h3 Rb1) 24. b4 $17 Rb5 {[%cal Bb6b5,Bb5f5,Bf5d5][%mdl 32]} 25. Na7 Rf5 26. Rxc7 Qd8 27. Qb7 $2 (27. Rc8 $17 {was called for.} Qd5 28. Qxd5 Rxd5 29. Rc7) 27... Qxd3 $19 28. Be3 $2 (28. Nc8) 28... Rd5 {[#] aiming for ...Qe4+.Black is clearly winning.} 29. h3 Be5 30. Rc8 Qe4+ 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.25"]
[Round "9"]
[White "Mareco, Sandro"]
[Black "Flores, Diego"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2655"]
[BlackElo "2568"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,85,49,41,35,52,43,44,46,39,40,46,46,57,45,38,42,41,34,27,36,40,5,45,38,38,42,41,24,50,42,59,40,58,6,15,4,60,45,50,55,59,56,49,57,91,81,71,79,75,42,50,29,60,14,14,0,297,207,281,266,482,466,420,420,422,395,635,589,619,589,1834,1728]} 1. Nf3 Nf6 2. c4 e6 3. g3 a6 4. b3 b5 5. Nc3 {[%cal Bb1c3,Bc3a4,Ba4b6][%mdl 32]} Bb7 6. Bg2 b4 7. Na4 {A13: English Opening: 1...e6} c5 (7... Be7 8. O-O O-O 9. d4 a5 10. Bb2 d6 11. Re1 Be4 12. Nd2 Bxg2 13. Kxg2 d5 14. e4 dxe4 15. Nxe4 Nxe4 16. Rxe4 {½-½ (32) Wagner,D (2548)-Bartel,M (2641) Zurich 2016}) 8. d4 cxd4 {LiveBook: 3 Games} 9. Qxd4 {White is slightly better.} Nc6 10. Qb6 $146 (10. Qf4 d5 11. Bb2 dxc4 12. Qxc4 Be7 13. Nc5 Bxc5 14. Qxc5 Qe7 {1-0 (57) Velikov,P (2495)-Stajcic,N (2290) Werfen 1990}) 10... Qxb6 11. Nxb6 Rd8 12. O-O (12. Be3 Ng4 13. Na4 Nxe3 14. fxe3 {[#]} Ne5 $1 $11 {[%mdl 512]}) 12... Ne4 13. Bb2 f6 14. Rad1 Nc5 15. Ne1 Na5 16. Nd3 Bxg2 17. Kxg2 Nxd3 18. exd3 (18. Rxd3 $5 {with more complications.} Bc5 19. Bd4 Nb7 20. e3 h5 21. Rfd1) 18... Rb8 (18... Bc5 $5 19. Na4 $8 Ba7 $14) 19. Bd4 Nc6 20. Be3 Be7 21. f4 Rb7 22. Rc1 f5 23. Na4 Bf6 24. Nc5 (24. Rfd1 $14) 24... Ra7 $11 25. Rfd1 Nd4 (25... Bb2 $11) 26. Ne4 $14 fxe4 27. dxe4 {Black must now prevent e5.} Nc6 $1 (27... e5 $2 28. fxe5 Bxe5 29. Bxd4 Bxd4 30. Rxd4 $18) 28. Bxa7 Nxa7 29. Rd6 $1 {[#] Hoping for Rcd1.} Be7 30. Rxa6 Nc6 31. Ra8+ Bd8 32. Rd1 Ke7 33. h4 $36 {[%mdl 2048] White fights for an advantage.} g6 34. a3 bxa3 35. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} a2 $2 {[%mdl 8192]} (35... Nxb4 $11 {and Black is okay.} 36. Ra7 (36. Rxa3 Bb6 37. Rb1 Bc5 $11) 36... Ke8) 36. b5 Nd4 37. Rxa2 ({Weaker is} 37. Rxd4 Bb6 38. Rxd7+ (38. Rxh8 Bxd4 39. Ra8 a1=Q 40. Rxa1 Bxa1 $17) 38... Kxd7 39. Rxa2 Kd6 $15) 37... Nb3 $2 (37... Bb6 {might work better.} 38. Rad2 Ra8 39. Rxd4 Bxd4) 38. Ra8 $18 Re8 39. b6 Nc5 40. Rb1 Nb7 $2 (40... Bxb6 41. Rxe8+ Kxe8 42. Rxb6 Nxe4 43. Rb8+ Kf7) 41. Rb8 {White is clearly winning.} Na5 42. b7 Nc6 43. Rc8 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.25"]
[Round "9"]
[White "Pichot, Alan"]
[Black "Sosa, Tomas"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2556"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "145"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,145,39,33,26,31,31,37,31,33,19,20,32,27,21,35,0,30,31,43,39,47,45,48,39,47,37,44,28,31,16,23,-8,0,0,17,0,0,0,0,0,0,0,10,0,18,0,4,-2,-5,-39,-47,-62,-63,-75,-76,-75,-76,-81,-64,-77,-76,-75,-67,-106,-104,-184,-175,-177,-184,-177,-177,-216,-215,-209,-208,-267,-267,-270,-256,-257,-177,-212,-186,-226,-90,-85,-34,-42,-27,-35,-35,-35,-35,-35,-35,-35,-35,-37,-42,-43,-37,-48,-25,-87,-88,-95,-87,-102,-88,-100,-93,-100,-95,-102,-104,-96,-95,-101]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 O-O 10. Qd2 Be6 11. Rc1 Qa5 12. f3 Rfc8 13. b3 Rab8 {B36: Sicilian: Maroczy Bind: Gurgenidze System} 14. Nb5 Qxd2+ 15. Kxd2 a6 {LiveBook: 3 Games. White is slightly better.} 16. Nd4 Bd7 17. Rhd1 {[#]} Ne8 $146 (17... Kf8 18. Ke1 Be8 19. Nc2 Nd7 20. Nb4 Nc5 21. Nd5 {½-½ (49) Swiercz,D (2654)-Zvjaginsev,V (2659) Tromsoe 2013}) 18. Ke1 Nc7 19. c5 Ne8 20. b4 Ba4 21. Rd3 Ra8 22. Rdc3 dxc5 23. bxc5 Bxd4 24. Bxd4 Nc7 25. Be3 Rd8 26. Rb1 Bc6 27. Rb6 Rd7 28. Rd3 (28. Rcb3 $5 {feels hotter.} Rc8 29. Kf2 e5 30. h4 Na8 31. R6b4) 28... Rad8 29. Rxd7 Rxd7 30. a4 Kg7 31. Bc4 e5 32. g4 f5 33. gxf5 gxf5 34. h4 fxe4 35. fxe4 Na8 (35... Bxe4 $2 36. Bh6+ Kh8 37. Rf6 $18) 36. Rb4 a5 37. Rb3 {aiming for Bd5.} Bxe4 38. h5 Nc7 39. Bd2 Rd4 40. Rg3+ Kf6 41. Bg5+ Kf5 42. Bg8 Rd7 ({But not} 42... Rxa4 $6 43. h6 (43. Bxh7+ Ke6 44. Bg8+ Kd7 $11) 43... Nd5 44. Bxh7+ Ke6 45. Bg8+ Kd7 46. Bxd5 Ra1+ 47. Ke2 Bxd5 48. Rh3 $14 (48. Rd3 Kc6 49. Rh3 Be4 $11)) 43. Bd2 Ne6 44. h6 Nxc5 45. Bxa5 Kf6 46. Bd2 Nxa4 47. Bb4 {[#]} (47. Bg5+ $17 Kf5 48. Bh4) 47... Nb2 $1 $19 {[%cal Rb2d3]} 48. Bf8 Nd3+ 49. Kf1 {[#]} Bg6 $1 50. Bg7+ Kf5 51. Bc4 Nf4 52. Re3 e4 53. Ra3 Rd2 54. Rg3 Nh5 55. Rb3 Kf4 56. Ke1 Rd7 (56... e3 $19 {is more deadly. Strongly threatening ...Bc2.} 57. Be2 Ng3 58. Be5+ Kxe5 59. Rxe3+ Ne4 60. Rxe4+ Kxe4 61. Kxd2 Kf4) 57. Bb2 $17 e3 (57... Bf7 $17 58. Bc1+ Kg4 59. Be2+ Kh4) 58. Bc1 $15 Re7 {[#]} (58... Bc2 $5 {is interesting.} 59. Bxe3+ Ke4 60. Rb2 Kxe3 61. Rxc2 Rc7) 59. Rxe3 $1 {[%mdl 512]} Rxe3+ 60. Kf2 Nf6 61. Bxe3+ {[%mdl 4096] Endgame KBB-KBN} Ke5 {Threatens to win with ...Ng4+.} 62. Ke2 Ne4 63. Kf3 Bh5+ 64. Kg2 Be8 65. Bd3 b5 {[%cal Bb7b5,Bb5b4,Bb4b3][%mdl 32]} 66. Bxe4 (66. Ba7 $11) 66... Kxe4 $11 {KB-KB. Black is better.} 67. Bd2 Kd3 68. Ba5 Kc4 {And now ...b4 would win.} 69. Kf2 b4 {Hoping for ...b3.} 70. Ke1 Kb3 71. Kd2 Ka3 {White must now prevent ...b3.} 72. Kc1 b3 {...b2+ is the strong threat.} 73. Bc3 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.25"]
[Round "9"]
[White "Morovic Fernandez, Ivan"]
[Black "Granda Zuniga, Julio E"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2527"]
[BlackElo "2658"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,87,0,-3,5,-17,-17,-21,-24,-20,-15,-17,-9,-11,-6,-22,-6,-27,-16,-16,-24,-37,-22,-25,-24,-31,-27,-57,-35,-35,-35,-35,-23,-23,-35,-35,0,-26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-11,-4,-11,-11,-11,-11,-11,-11,-21,-11,-11,0,-18,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 d5 {[%cal Bd7d5,Bd5e4][%mdl 32]} 6. Ne5 Be7 7. f4 {LiveBook: 4 Games. D05: Colle System with ...e6} Ne4 (7... O-O 8. Qf3 Nfd7 9. Qh3 f5 10. Nxd7 Qxd7 11. c3 a5 12. a4 Ba6 13. Bc2 c5 14. Nf3 Nc6 {1-0 (49) Szabo,G (2525)-Arnaudov,P (2404) Albena 2010}) 8. Nxe4 $146 (8. Qf3 $5 {is more complex.} Nd6 9. b3 Nc6 10. Nxc6 Bxc6 11. O-O) (8. Qf3 Nf6 9. O-O g6 10. c3 O-O 11. g4 Nbd7 12. Qh3 Nxe5 13. fxe5 Ne4 14. Nf3 Kg7 {0-1 (52) Thieme,H (1978)-Rabaev,S (1901) Berlin Pankow 2005}) 8... dxe4 9. Bb5+ c6 10. Bc4 {[#] aiming for f5!} Nd7 11. O-O O-O 12. a4 c5 13. c3 Rc8 14. Qe2 Qc7 {Strongly threatening ...cxd4.} (14... Bd5 $5 {is interesting.} 15. Ba6 Rc7 16. c4 Ba8 17. Rd1 cxd4 18. exd4 Nb8) 15. Nxd7 Qxd7 16. Rd1 Rfd8 17. a5 Bc6 18. axb6 axb6 19. Bb3 b5 20. Bd2 c4 21. Bc2 Bd5 22. Ra5 Qb7 23. Rda1 Rc7 24. b4 cxb3 {[#]} 25. Bxb3 $1 {[%mdl 512] The position is equal.} Rb8 ({Don't play} 25... Bxb3 $6 26. Rxb5 Ra8 27. Rxa8+ Qxa8 28. Rxb3 $16) 26. Rb1 Qb6 27. Ra2 Qc6 28. Rab2 Rcb7 29. Be1 Bd6 30. h3 g6 31. g4 Bc7 32. g5 h6 33. h4 h5 34. Kh2 Rb6 35. Kg3 Kf8 {[%cal Bg8f8,Bf8e8,Be8d7][%mdl 32]} 36. Bd2 Ke8 37. Be1 Kd7 38. Bd2 Bc4 39. Bxc4 bxc4 40. Rb4 Qd5 41. Ra1 Rc6 42. Rxb8 Bxb8 43. Be1 Bc7 44. Ra4 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.25"]
[Round "9"]
[White "Hoffman, Alejandro"]
[Black "Bachmann, Axel"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2488"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,87,49,31,92,91,91,79,101,79,95,43,55,47,83,83,68,56,51,45,45,62,56,36,43,37,60,-4,131,130,130,129,122,125,188,198,310,281,276,149,149,138,142,139,163,135,166,160,159,113,188,0,0,0,288,291,288,288,418,403,417,402,381,381,412,392,392,370,356,337,365,0,319,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. e4 Nbd7 5. f3 e5 6. Nge2 c6 7. Be3 Bg7 8. Qd2 O-O 9. d5 {LiveBook: 216 Games} c5 {E86: King's Indian: Sämisch: 6...e5 7 Nge2 c6} (9... cxd5 $14 10. cxd5 (10. exd5 e4 $11) 10... a6) (9... cxd5 10. cxd5 a6 11. g4 h5 12. g5 Nh7 13. Nc1 f6 14. gxf6 Rxf6 15. Be2 Nc5 16. b4 Nd7 17. Nb3 Rf4 18. O-O-O Qf6 19. Kb1 Ng5 20. Bxf4 exf4 {1-0 (44) Bocharov,D (2602)-Fedorov,A (2565) Voronezh 2016}) 10. Ng3 h5 11. Bd3 a6 {White is better.} 12. a4 $146 (12. O-O Nh7 13. a3 h4 14. Nge2 f5 15. f4 h3 16. g3 Qe8 17. exf5 gxf5 18. fxe5 Nxe5 {½-½ (54) Bullerkotte,F-Tabernet,C CServe email 1997}) 12... Nh7 13. O-O ({White should play} 13. b3 $16) 13... Bf6 14. a5 Bg5 15. Bxg5 Nxg5 16. Na4 h4 17. Ne2 Rb8 18. b4 b5 19. axb6 $1 {[#] Threatens to win with bxc5.} cxb4 20. Qxb4 Nxb6 21. Rab1 (21. Nxb6 $14 Rxb6 22. Qc3) 21... Nxa4 (21... a5 $11 {keeps the balance.} 22. Qxa5 h3) 22. Qxb8 $16 h3 {White must now prevent ...hxg2.} 23. g3 Nc5 24. Bc2 Qf6 (24... a5 $16) 25. Qb4 $18 Nxf3+ (25... Qe7 $142 26. Qc3 f5 27. exf5 Bxf5 28. Bxf5 gxf5) 26. Kh1 g5 {[#]} 27. Ng1 (27. g4 $1 $18) 27... g4 $16 28. Qc3 Qg5 29. Nxf3 gxf3 30. Qxf3 Bg4 31. Qf6 Qd2 {[%csl Gh3][%cal Rd2g2]} 32. Rf2 Qe3 (32... Be2 $16 {was worth a try.}) 33. Rf4 $2 (33. Kg1 $18) 33... Bh5 $11 34. Rg1 ({Don't take} 34. Qg5+ $2 Bg6 35. Rbf1 (35. Rf5 $2 Qe2 36. Rg1 Qxc2 $19) 35... exf4 $19) 34... Rb8 $2 {[%mdl 8192]} (34... exf4 $11 35. gxf4+ Bg6 36. Rxg6+ fxg6 37. Qxg6+ Kh8 38. Qh6+ Kg8 39. Qg6+ Kh8 40. Qh6+ Kg8 41. Qg6+) 35. g4 $18 Bg6 36. Rf3 (36. Qxd6 exf4 37. Qxb8+ Kh7 38. Qh8+ Kxh8 39. Rg3 fxg3 40. hxg3 Qxg3 41. Bd1 Qg2#) 36... Qe2 (36... Qh6 $142) 37. Rxh3 {[%csl Gf6][%cal Rh3h8]} Bxe4+ 38. Bxe4 Qxe4+ 39. Rf3 Rb7 40. Qd8+ Kh7 41. Qh4+ Kg8 42. Qg5+ Kh8 43. Qf6+ Kg8 44. Qg5+ $2 (44. g5 $18 {g6 is the strong threat.} Nd3 45. Qf5 (45. Qd8+ Kh7 46. Rgf1 Ne1 $17) 45... Qxf5 46. Rxf5) 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.25"]
[Round "9"]
[White "Slipak, Sergio"]
[Black "Garcia Palermo, Carlos"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2465"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,44,14,15,0,15,31,28,4,4,4,4,16,10,12,7,0,8,0,31,48,87,38,24,13,12,8,20,7,9,7,8,11,61,57,60]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 c5 5. a3 Bxc3 6. Bxc3 Ne4 {LiveBook: 4 Games. E20: Nimzo-Indian: 4 g3 and 4 f3} 7. Rc1 (7. Qc2 Nxc3 8. Qxc3 cxd4 9. Qxd4 O-O 10. Nf3 Nc6 11. Qd2 Na5 12. Qc3 b6 13. b4 Nc6 14. e3 {½-½ (44) Miljkovic,M (2445)-Pikula,D (2568) Sombor 2009}) 7... Qf6 $146 {[%csl Ge4][%cal Rf6f2] [#]} (7... Nxc3 8. Rxc3 Qb6 9. e3 d6 10. Ne2 Nd7 11. g3 Nf6 12. Bg2 O-O 13. O-O e5 14. Rb3 {1-0 (52) Certic,B (2396)-Drazic,S (2463) Belgrade 2003}) 8. Nf3 b6 9. dxc5 (9. d5 $5 {creates asymmetry.} Nxc3 10. Rxc3 O-O 11. e4 d6 12. Be2) 9... Nxc3 10. Rxc3 {With the idea cxb6.} bxc5 11. g3 Nc6 12. Bg2 O-O 13. O-O Rb8 14. Rb3 Rxb3 15. Qxb3 Ba6 16. Qa4 Bb7 17. b4 cxb4 18. axb4 {Threatens to win with b5.} Qc3 $1 19. Rd1 Nxb4 20. Qxd7 Bc6 21. Qxa7 Bxf3 22. Bxf3 Qxc4 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.25"]
[Round "9"]
[White "Van Riemsdijk, Herman C"]
[Black "Darcyl, Tomas"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2318"]
[BlackElo "2405"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,91,26,24,74,72,129,118,122,119,132,119,235,84,94,90,90,91,170,75,64,65,66,67,129,120,139,93,112,108,114,96,95,93,129,134,127,126,117,108,110,117,150,134,161,148,150,155,145,134,131,125,314,300,321,244,414,245,288,288,285,272,579,569,549,549,522,484,569,610,619,444,1104,1041,2119,2125,1937,1777,1192,933,29980,29981]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} Nf6 2. e5 Nd5 3. d4 {[%cal Bd2d4,Bd4d5,Bd5c6][%mdl 32]} d6 4. Nf3 Nc6 5. c4 Nb6 6. Be2 dxe5 {B04: Alekhine's Defence: 4 Nf3} 7. d5 {LiveBook: 5 Games} (7. Nxe5 Nxd4 8. Be3 c5 $17) (7. dxe5 Qxd1+ 8. Bxd1 Nxc4 $17) 7... e4 $146 (7... Nb8 8. Nxe5 e6 9. O-O Be7 10. Nc3 exd5 11. cxd5 O-O 12. Bd3 N8d7 13. Nxd7 Bxd7 {½-½ (34) Oparin,G (2564)-Spraggett,K (2545) Linares 2015}) 8. dxc6 {Strongly threatening Qxd8+.} Qxd1+ (8... exf3 $142 9. Qxd8+ (9. Bxf3 Qxd1+ 10. Kxd1 Rb8 $14) 9... Kxd8 10. Bxf3 bxc6) 9. Bxd1 $16 {And now c5 would win.} exf3 10. Bxf3 Rb8 11. Bf4 Kd8 (11... Na8 $16 {was worth a try.} 12. Nc3 f6) 12. Na3 $2 (12. c5 $1 $18 {[%cal Rc5b6]} Na8 13. Na3) 12... bxc6 13. O-O-O+ Bd7 14. Bxc6 $1 Kc8 (14... e5 $16) 15. Bxd7+ (15. Rxd7 $1 $18 {is the precise move to win.} Nxd7 16. Rd1) 15... Nxd7 16. Nb5 Rb7 $1 17. Be3 c5 (17... c6 $14) 18. Rd2 g6 19. Nc3 Bg7 20. Ne4 Rc7 21. b3 h6 22. g4 f5 23. gxf5 gxf5 24. Ng3 e6 25. Nh5 Be5 26. f4 Bc3 27. Rd3 Nf6 {[#]} 28. Nxf6 $1 ({Don't play} 28. Rxc3 $6 Nxh5 29. Rg1 Nf6 $14) 28... Bxf6 29. Rd6 Rg8 30. Rxe6 Rg6 31. Kb1 {aiming for Rd1.} Kd7 $2 (31... Re7 $16 {was called for.} 32. Rxe7 Bxe7) 32. Ra6 $18 Ke7 33. Rg1 ({Don't take} 33. Rxa7 $6 Rxa7 34. Bxc5+ Kf7 35. Bxa7 Rg2 $18) 33... Rg4 $2 (33... Rxg1+ 34. Bxg1 Kf7) 34. h3 (34. Rxg4 $142 fxg4 {[#]} 35. Rxa7 $1 {[%mdl 512]} Rxa7 36. Bxc5+ Kd7 37. Bxa7) 34... Rh4 35. Rg3 Kf7 36. Kc2 Bd4 $2 (36... Be7 {is more resistant.} 37. Rf3 Rh5) 37. Bxd4 cxd4 {[%mdl 4096] Endgame KRR-KRR} 38. Rf3 Re7 39. Kd3 Re4 40. Rxa7+ Kf6 41. Ra6+ Kg7 (41... Ke7 $142 42. b4 Rexf4 43. Rxf4 Rxf4 44. Rxh6 Rf2) 42. c5 {[%cal Bc4c5,Bc5c6][%mdl 32]} Rhxf4 43. Rxf4 Rxf4 44. c6 {Intending c7 and mate.} Rf1 45. Ra4 Rd1+ 46. Ke2 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.26"]
[Round "10"]
[White "Granda Zuniga, Julio E"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2658"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,29,34,25,22,0,18,-4,0,-19,11,0,0,4,58,56,55,52,49,46,52,53,49,26,29,2,60,72,60,49,49,43,70,51,72,57,95,89,81,86,150,148,155,127,129,122,242,246,272,294,287,211,211,213,233,233,339,325,329,327,361,354,458,445,473,473]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O Bb4 {B12: Caro-Kann: Advance Variation} 7. c3 Ba5 {LiveBook: 24 Games} 8. Na3 (8. Nbd2 Bc7 9. Re1 h6 10. Nf1 c5 11. Ng3 Bg6 12. b4 c4 13. a4 Ne7 14. Nh4 {1-0 (27) Anand,V (2779)-Mamedyarov,S (2768) Doha 2016}) 8... Bc7 $146 {White has an edge.} (8... Ne7 9. Nc2 O-O 10. Ne3 Be4 11. Ng5 Bg6 12. f4 Re8 13. Bd3 Bxd3 14. Qxd3 {1-0 (24) Louro,O-MacNair,A UECC email 1998}) 9. Bf4 h6 10. Qd2 Ne7 11. Rae1 g5 12. Bg3 Ng6 {White must now prevent ...g4.} 13. h3 g4 ({Better is} 13... f6 $11) 14. hxg4 $14 Bxg4 15. c4 $1 Nb6 16. c5 Nd7 17. Nc2 Bxf3 18. Bxf3 Qg5 19. Qe3 Nh4 (19... Ne7 $11) 20. Bxh4 Qxh4 21. g3 $36 {[%mdl 2048] White has good play.} Qg5 22. Kg2 b6 23. b4 {[%cal Bb2b4,Bb4b5,Bb5c6][%mdl 32]} a5 24. b5 Qxe3 25. fxe3 bxc5 26. bxc6 Nb6 (26... Nb8 $142) 27. Na3 $16 (27. dxc5 Nc4 $14) 27... Rc8 28. Rb1 ({Much weaker is} 28. dxc5 $6 Nc4 29. Nxc4 dxc4 $11) 28... Bd8 29. dxc5 Na4 (29... Nc4 $16 30. Nxc4 dxc4) 30. Rfc1 $1 $18 {And now Bd1 would win.} Be7 {With the idea ...0-0.} 31. Nb5 {Hoping for Nd6+.} O-O 32. Nd6 Rxc6 {[#]} 33. Bd1 $1 {[%cal Rd1a4]} Nxc5 {[#]} 34. Rb5 $1 {[%csl LRa5,LRc5]} Bxd6 (34... Rfc8 {is a better defense.}) 35. exd6 Rxd6 36. Rcxc5 ({Resist} 36. Rbxc5 Ra6 37. Rb5 Kg7 $18) 36... f5 37. a4 d4 38. exd4 ({Not} 38. Rxa5 d3 39. Rc7 Rf7 $18) 38... Rxd4 39. Bb3 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.26"]
[Round "10"]
[White "Bachmann, Axel"]
[Black "Mareco, Sandro"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2646"]
[BlackElo "2655"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,117,0,0,-13,-13,0,0,0,-2,8,0,0,0,0,0,0,-15,-14,-18,0,-27,-35,-41,-16,-14,-6,0,-2,-21,0,-14,-6,-8,-14,-19,5,5,5,18,27,-3,0,4,248,227,399,395,411,409,371,402,379,415,399,398,395,324,336,340,324,291,300,270,485,495,488,477,637,589,711,712,764,747,851,868,684,594,1207,1137,29968,29969,29966,0,1139,0,29965,29964,29962,29958,29952,12814,7026,7026,29977,29977,29976,29977,29977,29979,29982,29983,29982,29983]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. c4 Be7 6. h3 d5 7. Nc3 O-O 8. Be2 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} (8. cxd5 exd5 9. Bd3 c5 10. Rc1 Nbd7 11. Ne5 cxd4 12. exd4 Ne4 13. O-O Rc8 14. Re1 Ndf6 15. Qb3 Nh5 16. Bh2 Bg5 {1-0 (68) Gorovets,A (2532)-Hevia Alejano,C (2534) Brownsville 2016}) 8... dxc4 9. Bxc4 {LiveBook: 6 Games} a6 10. a4 {The position is equal.} c5 11. O-O cxd4 $146 (11... Nbd7 12. Bg3 Nh5 {1-0 (32) Htet,N-Tun,N Yangon 2014}) 12. Nxd4 Nbd7 {[%cal Bb8d7,Bd7c5,Bc5b7,Bb7a5][%mdl 32] White must now prevent ...e5.} 13. Nf3 Ra7 14. Qe2 Qa8 15. Rfd1 Rc8 16. Rac1 Bc6 17. b3 Nc5 18. Qf1 Bxf3 19. gxf3 Nb7 20. Ne4 Nxe4 21. fxe4 Na5 22. Qe2 g6 (22... Qxe4 $2 23. Bd3 Qa8 24. Be4 $1 $18 {[%mdl 512]}) 23. Be5 Rc5 24. Bd4 Rc6 25. Ba1 Qc8 26. Qb2 {[%csl Ga1][%cal Rb2h8]} f6 $132 {[%mdl 2048] Black is fighting back (3)} 27. Bf1 Rac7 {[%cal Rc6c1]} 28. Rb1 Rc2 29. Qd4 Ra2 $2 (29... R7c5 $11 {and Black has nothing to worry.}) 30. Qxb6 $18 Rcc2 $2 (30... Rc5 {keeps fighting.} 31. Bxa6 Qc6 32. Qxc6 Nxc6) 31. Qxa5 Rxf2 32. Rbc1 (32. Qxa6 Qxa6 33. Bxa6 Rg2+ 34. Kh1 Rh2+ 35. Kg1 Rag2+ 36. Kf1 Rf2+ 37. Kg1 Rfg2+ 38. Kf1 Rf2+ 39. Kg1 Rfg2+ $11) 32... Rfc2 33. Bc3 (33. Qxa6 Rxc1 34. Qxc8+ (34. Rxc1 $2 Qxc1 35. Qxe6+ Kf8 $19) 34... Rxc8 $17) (33. Qd2 Qc7 34. Qf2 (34. Rxc2 $2 Rxc2 35. Be5 Rxd2 36. Bxc7 Rxd1 $19) 34... Rxc1 35. Rxc1 Qxc1 36. Qxa2 Qxe3+ 37. Qf2 Qxb3 38. Bxf6 Bxf6 $18) 33... Qc6 34. Rxc2 (34. Bxa6 Rg2+ 35. Kf1 Qxe4 36. Be2 Rgxe2 37. Rd8+ Kf7 38. Rf8+ Kxf8 39. Qg5 Qh1+ 40. Qg1 Qxh3+ 41. Qg2 Qxg2#) 34... Rxc2 35. Bd2 (35. Bxa6 $2 Qxe4 36. Rd8+ Kf7 $19) (35. Qxa6 Qxc3 36. Qd3 (36. Qxe6+ Kf8 37. Bd3 Ra2 $17) 36... Qc7 $15) (35. Bb4 Qxe4 36. Rd8+ (36. Bxe7 Qxe3+ 37. Kh1 Qf3+ 38. Kg1 Qg3+ 39. Kh1 Qh2#) 36... Kg7 $11) 35... Qxe4 36. Qxa6 Rxd2 37. Rxd2 Qxe3+ 38. Rf2 Bc5 {[#]} 39. Qe2 $1 {[%cal Re2e3] Strongly threatening Qxe3.} Qg3+ $2 (39... Qxb3 40. a5 Qc3) 40. Bg2 Qxb3 41. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} Kf7 42. a6 Qa3 43. Bf3 f5 44. Kg2 Bxf2 45. Kxf2 Kf6 46. Kg2 e5 47. Qc4 Qe3 48. Qh4+ Ke6 49. Qc4+ (49. Qxh7 Qd2+ 50. Kg3 (50. Kf1 Qc1+ 51. Kf2 Qd2+ 52. Kg3 Qf4+ 53. Kf2 Qd2+ 54. Be2 Qf4+ 55. Kg2 Qg5+ 56. Kf2 Qf4+ 57. Kg2 Qg5+ 58. Bg4 fxg4 $11) 50... Qf4+ 51. Kf2 Qd4+ 52. Kf1 Qc4+ 53. Kg2 Qc2+ 54. Kh1 Qc1+ 55. Kh2 Qd2+ 56. Kh1 (56. Bg2 Qf4+ 57. Kh1 Qc1+ 58. Kh2 Qf4+ 59. Kh1 Qc1+ 60. Kh2 Qf4+ $11) 56... Qe1+ 57. Kh2 (57. Kg2 Qd2+ 58. Kg1 Qe3+ 59. Kg2 Qd2+ $11) 57... Qf2+ 58. Bg2 Qf4+ 59. Kh1 Qc1+ 60. Kh2 Qf4+ 61. Kg1 Qe3+ 62. Kf1 Qc1+ 63. Kf2 Qd2+ 64. Kf3 (64. Kg1 Qe3+ 65. Kh1 Qc1+ 66. Kh2 Qf4+ $11) 64... Qd3+ 65. Kf2 Qd2+ 66. Kf3 (66. Kg1 Qe3+ 67. Kh2 Qf4+ $11) 66... Qd3+ 67. Kf2 Qd2+ $11) (49. Qf2 $142 Qg5+ 50. Kh1 Qc1+ 51. Qg1 Qa3 52. a7 Qxf3+ 53. Qg2 Qd1+ 54. Kh2) 49... Kf6 {and the idea ...e4 leaves Black hopeful.} 50. Qh4+ (50. Qc6+ $18 Kg7 51. Qd7+ Kh6 52. a7) 50... Ke6 {intending ...e4.} 51. Qf2 (51. Qxh7 Qd2+ 52. Kg3 (52. Kf1 Qc1+ 53. Kf2 Qd2+ 54. Kg3 Qe1+ 55. Kh2 Qd2+ 56. Kh1 Qe1+ 57. Kh2 Qf2+ 58. Bg2 Qf4+ 59. Kh1 Qc1+ 60. Kh2 Qf4+ 61. Kg1 Qe3+ 62. Kf1 Qd3+ 63. Kg1 Qe3+ 64. Kf1 Qd3+ 65. Kf2 Qd4+ 66. Ke2 Qc4+ 67. Kf3 Qe4+ 68. Kf2 Qd4+ 69. Kf3 Qe4+ 70. Kf2 Qd4+ $11) 52... Qg5+ 53. Bg4 Qe3+ 54. Kh2 Qf2+ 55. Kh1 Qf1+ 56. Kh2 Qf2+ 57. Kh1 Qf1+ 58. Kh2 Qf2+ $11) 51... Qg5+ 52. Kh1 Qc1+ 53. Qg1 Qa3 54. a7 e4 55. Qb6+ {White mates.} Kd5 56. Bg2 ({Not} 56. Bxe4+ fxe4 57. Qd8+ Kc4 58. Qc7+ Kd3 $16) 56... Qa1+ 57. Kh2 Qe5+ 58. Kg1 Qa1+ 59. Bf1 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.26"]
[Round "10"]
[White "Flores, Diego"]
[Black "Van Riemsdijk, Herman C"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2568"]
[BlackElo "2318"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,39,34,33,51,36,33,43,39,28,35,35,60,45,160,156,156,151,299,299,475,467,467,467,471,467]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Bb4 6. e3 h6 7. Bh4 Nbd7 8. Bd3 c6 9. Nf3 {[%cal Bg1f3,Bf3e5,Be5g6][%mdl 32]} Be7 {D35: Queen's Gambit Declined: Exchange Variation} (9... O-O 10. O-O Re8 11. Qc2 b6 12. Qa4 Bxc3 13. Qxc6 Bxb2 14. Rab1 Rb8 15. Rxb2 Bb7 16. Qd6 Rc8 17. a4 g5 18. Bg3 Re6 19. Qb4 {1-0 (29) Riazantsev,A (2646)-Zhang,Z (2619) Berlin 2015}) 10. Qc2 Nh5 11. Bxe7 Qxe7 {White is slightly better.} 12. O-O-O $146 (12. O-O O-O 13. Rab1 Nhf6 14. b4 a6 15. a4 Rd8 16. Rfc1 Ne8 17. b5 Nd6 18. bxc6 bxc6 19. a5 Bb7 20. Na4 Nb5 {1-0 (42) Rossetto,H-Mangini,J Rio de Janeiro 1957}) 12... Nb6 13. Ne5 Be6 14. Kb1 O-O-O (14... Nf6 $14) 15. Nb5 $1 $36 {[%cal Rb5a7][%mdl 2048] White is on the roll.} Kb8 16. Qxc6 $1 f6 {[#]} (16... Nf6 $16 17. Qc5 Rhe8) 17. Ng6 $1 $18 {[%cal Rg6e7]} Qd7 (17... bxc6 $142 18. Nxe7 cxb5) 18. Qxd7 {White is clearly winning.} Bxd7 19. Nxh8 Rxh8 20. Nd6 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.26"]
[Round "10"]
[White "Morovic Fernandez, Ivan"]
[Black "Pichot, Alan"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2527"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,107,0,0,28,29,39,37,49,54,50,28,38,34,22,26,58,38,29,33,32,0,19,-49,-46,-64,-25,-51,-17,-71,-71,-72,-69,-75,-72,-66,-85,-71,-58,-111,-83,-101,-80,-74,-62,-143,-118,-303,-308,-312,-52,-106,-58,-145,-144,-149,-62,-66,-65,-65,-62,-67,-61,-77,-63,-107,-26,-118,-20,-262,-262,-260,-259,-224,-19,-38,-14,-14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. c3 O-O 6. Bd3 c5 7. O-O cxd4 8. cxd4 Nc6 {B07: Pirc Defence: Miscellaneous Systems} 9. Re1 (9. h3 Nh5 10. Nb3 e5 11. Bg5 Qb6 12. d5 Nb4 13. Be3 Qd8 14. Bc4 a5 15. Nbd2 Bd7 16. a3 {½-½ (89) Fedoseev,V (2674)-Kokarev,D (2638) Sochi 2015}) 9... e5 10. d5 Ne7 {White is slightly better.} 11. Nc4 b5 $146 (11... Ne8 12. Qb3 Kh8 13. Bd2 f5 14. Bb4 b5 15. Na5 Qb6 16. Rac1 fxe4 17. Bxe4 {0-1 (43) Mateuta,G (2520)-Fedorov,A (2555) Calimanesti 2014}) 12. Ncd2 Bd7 13. a4 a6 14. Nb1 Qb6 15. axb5 axb5 16. Rxa8 Rxa8 17. Bg5 h6 18. Bh4 (18. Be3 $11 Qb7 19. Bd2) 18... g5 $15 19. Bg3 Ng6 20. Na3 Nf4 21. Bf1 (21. Bxf4 $1 $11 exf4 22. h3) 21... Ra4 $17 22. Nd2 h5 23. h4 gxh4 24. Bxh4 Ng4 $36 {[%mdl 2048] Hoping for ...Bf6. Black is in control.} 25. Nf3 Ng6 26. Qc2 (26. Bg3 $15) 26... Nxh4 27. Nxh4 Bf6 28. Nf3 Bd8 29. g3 ({White should try} 29. Nh2 $15) 29... Qa5 30. Kg2 $2 (30. Bd3 $17) 30... Bb6 $19 31. Re2 Qa8 $2 (31... Bxf2 $1 $19 32. Qc1 Ba7) 32. Qd2 ({Better is} 32. Qc1 $15) 32... Qd8 33. Nc2 (33. Nh4 $1 $15) 33... Qf6 $17 34. Nh4 Bxf2 (34... Ra2 $1 $17 {[%cal Ra2b2]} 35. Ne1 Bxf2 36. Rxf2 Nxf2 37. Qxf2 Bh3+ $1 {[%mdl 512]} 38. Kg1 Qxf2+ 39. Kxf2 Rxb2+ 40. Be2 Ra2) 35. Rxf2 $15 Nxf2 36. Qxf2 Qxf2+ 37. Kxf2 Ra2 $1 38. Ne3 Rxb2+ 39. Ke1 $1 b4 40. Bd3 {[#]} (40. Nf3 $1 $11) 40... b3 ({Black should play} 40... Ra2 $1 $17 41. Nhf5 Bxf5 42. Nxf5 b3 43. Nxd6 b2) 41. Nhf5 $2 (41. Nf3 $1 $11) 41... Bxf5 $1 $19 42. Nxf5 Rg2 43. Kd1 {[#]} b2 $2 (43... Rg1+ $1 $19 44. Kd2 b2) 44. Bb1 $1 $11 Kf8 45. Ba2 $1 {The position is equal.} Rg1+ 46. Kc2 Re1 $1 47. Nxd6 Re3 48. Nf5 ({Don't play} 48. Kxb2 Rxg3 49. Nf5 Rg2+ 50. Ka3 Rh2 $17) 48... Rxe4 49. Kxb2 Re2+ 50. Kb3 Rd2 51. d6 e4 {next ...e3! is good for Black.} 52. Bb1 e3 $1 {[%cal Re3e2] White must now prevent ...e2.} 53. Nxe3 {Strongly threatening Nf5.} Rxd6 54. Kc3 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.26"]
[Round "10"]
[White "Sosa, Tomas"]
[Black "Hoffman, Alejandro"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2459"]
[BlackElo "2488"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,37,-28,-33,-28,-31,-41,-33,9,-46,-43,-41,-39,-44,0,0,8,-72]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. Re1 Bd7 6. c3 Be7 7. d4 O-O 8. Nbd2 Nxd4 9. cxd4 Bxb5 {C66: Ruy Lopez: Steinitz Defence} 10. Qb3 c6 11. dxe5 dxe5 12. Nxe5 {LiveBook: 3 Games} Nd7 13. Ndf3 Nc5 $146 (13... Nxe5 14. Nxe5 Qd6 15. Bf4 Qe6 16. Qg3 Rad8 17. a4 {1-0 (36) Sznapik,A (2440)-Jacobsen,B (2315) Copenhagen 1982}) 14. Qc3 a5 15. Bf4 (15. Be3 $11 Nxe4 16. Qc2) 15... Ne6 $15 16. Rad1 Qc8 17. Qc1 Nxf4 18. Qxf4 c5 19. Rd5 (19. Ng4 $11) 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.26"]
[Round "10"]
[White "Darcyl, Tomas"]
[Black "Slipak, Sergio"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2405"]
[BlackElo "2465"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,28,31,36,38,38,35,38,37,41]} 1. Nf3 Nf6 2. b3 b6 3. Bb2 Bb7 4. e3 g6 5. c4 Bg7 6. Be2 O-O 7. O-O c5 8. Nc3 d6 9. d4 Ne4 10. Nxe4 Bxe4 11. Qd2 Nd7 {White is slightly better.} 12. d5 {E61: King's Indian: Early deviations for White, including Smyslov System} (12. Rfd1 a5 13. Ng5 Bb7 14. Bf3 Bxf3 15. Nxf3 Qc7 16. a4 e6 17. dxc5 Nxc5 18. Bxg7 Kxg7 19. Qb2+ Kg8 {½-½ (92) Westerberg,J (2498)-Fernandez,D (2462) Vaxjo 2016}) 12... Bxb2 13. Qxb2 Bxf3 14. Bxf3 Rb8 $146 (14... Qc7 15. Be2 Rfb8 16. Rfd1 a6 17. a4 Qd8 18. f4 Qf8 19. Ra2 Nf6 {½-½ (48) Giffard,N (2303)-Mensch,E (2380) France 2002}) 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.27"]
[Round "11"]
[White "Mareco, Sandro"]
[Black "Sosa, Tomas"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2655"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,89,52,61,63,80,62,68,57,62,58,62,71,67,59,60,52,77,71,130,94,119,100,120,134,123,106,123,131,184,170,193,172,187,169,179,174,187,123,145,130,259,265,256,162,265,261,273,207,212,211,199,204,273,263,406,340,501,497,507,505,475,452,903,852,975,788,1614,1583,1416,1412,1248,1064,837,745]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nbd7 8. Be3 Re8 9. d5 Nh5 10. g3 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves} Bf8 11. Ne1 Ng7 12. Nd3 {White is slightly better.} f5 13. f3 Be7 14. Qd2 Nf6 15. c5 fxe4 16. fxe4 Bh3 17. Rf2 h5 ({Black should try} 17... Ng4) 18. b4 $146 Nh7 19. Bf1 Ng5 20. Bg2 Bg4 21. h4 {[%cal Bh2h4,Bh4g5,Bg5g6][%mdl 32]} Nh7 22. Raf1 g5 {[#]} (22... Rf8 $16 23. Rxf8+ Bxf8) 23. Rf7 $1 $18 Rf8 24. Rxf8+ Bxf8 25. hxg5 Be7 {[#]} 26. g6 $1 $36 {[%cal Rg6h7][%mdl 2048] Keeping Black busy.} Nf8 27. c6 (27. cxd6 cxd6 28. Bf3 (28. Qf2 Nxg6 29. Bf3 Bh3 $16) 28... Bxf3 $16) (27. Nf2 $18) 27... b6 $16 28. Nf2 Nxg6 (28... Bc8 $16 29. Nh3 Nxg6) 29. Nxg4 $18 hxg4 30. Qf2 {Strongly threatening Qf7+.} Kh7 (30... Nh8 {might work better.} 31. a4 Bg5) 31. Nd1 ({Much less strong is} 31. Qf7 $6 Nh8 32. Qf2 Bg5 $16) 31... Qc8 32. Qe2 ({Resist} 32. Qf7 $6 Qf8 33. Qf2 Qxf2+ 34. Nxf2 (34. Rxf2 Nh5 $14) (34. Kxf2 Rf8+ 35. Ke1 Kg8 $16) 34... Nh5 $16) 32... Nh5 33. Rf7+ Kh8 34. Qf2 {aiming for Qf5.} Qg8 35. Bh6 Bf8 (35... Re8 $142 36. Ne3 Nf8 37. Nxg4 Nh7) 36. Rf5 {[%cal Bf7f5,Bf5h5,Bh5h6][%mdl 32]} Bxh6 (36... Nxg3 $142 37. Rxf8 (37. Qxg3 Bxh6 38. Rh5 Qh7 $11) 37... Nxf8) 37. Rxh5 {White is clearly winning.} Kg7 38. Ne3 Bxe3 39. Qxe3 Kf7 (39... Kf8 $142 40. Qg5 Qf7) 40. Qg5 {Hoping for Qf5+.} Rf8 41. Rh6 Ne7 42. Qh5+ Kg7 43. Re6 Qf7 44. Qh6+ Kg8 45. Qg5+ 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.27"]
[Round "11"]
[White "Pichot, Alan"]
[Black "Granda Zuniga, Julio E"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2556"]
[BlackElo "2658"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,81,40,77,55,87,31,68,49,91,69,95,90,97,97,90,100,120,147,139,135,115,114,140,75,75,46,65,6,15,14,45,28,27,0,0,0,24,24,24,24,24,24,64,14,152,154,506,506,497,499,481,487,472,422,806,805,791,785,729,750,733,728,707,565,710,571,856,813]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. O-O Nd7 7. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32] B12: Caro-Kann: Advance Variation} h6 8. a5 g5 {LiveBook: 5 Games} 9. a6 {White is better.} b5 $146 ({Predecessor (8):} 9... b6 10. Ne1 Rg8 11. c3 f6 12. Bh5+ Bg6 13. f4 gxf4 14. Bxf4 fxe5 15. dxe5 {½-½ (42) Zautzig,H (2555)-Papenin,N (2630) ICCF email 2010}) 10. Ne1 (10. Nbd2 $16) 10... Bg6 11. c3 Qb6 12. Nd2 Bg7 13. Nb3 Nf5 14. Nd3 Bf8 15. f4 c5 16. dxc5 (16. fxg5 c4 $15) 16... Nxc5 17. Ndxc5 Bxc5+ 18. Nxc5 Qxc5+ {[#]} 19. Kh1 ({White should try} 19. Rf2 $1) 19... h5 $16 {[%cal Bh6h5,Bh5h4][%mdl 32] Black wants to play ...h4.} 20. fxg5 h4 $1 {And now ...Ng3+! would win.} 21. Rxf5 (21. h3 $14) 21... Bxf5 $11 ({Much worse is} 21... exf5 $6 22. Qd3 $16) 22. Qg1 Qxg1+ 23. Kxg1 b4 24. Be3 bxc3 $1 25. bxc3 O-O 26. Ra4 Rfc8 27. Bd4 $1 Rc7 28. Rb4 {Black must now prevent Rb7.} Rac8 29. Rb7 Kg7 (29... Rxb7 $1 $11 30. axb7 Rb8) 30. Rxa7 $16 (30. Bxa7 Rxc3 31. Rb2 Bd3 32. Bxd3 Rxd3 $17) 30... Rxc3 $2 {[#]} (30... Rxa7 $16 {is more resistant.} 31. Bxa7 Bc2) 31. Bxc3 $18 {White is clearly winning.} Rxc3 $16 {[%mdl 4096] Endgame KRB-KRB} 32. Rd7 Ra3 {and the idea ...Bd3 leaves Black hopeful.} 33. a7 Be4 34. Bh5 d4 (34... Bg6 $142) 35. Rxf7+ $18 Kg8 36. Rd7 Ra1+ 37. Kf2 Ra2+ 38. Ke1 Ra1+ 39. Kd2 Ra2+ 40. Kc1 Rxg2 41. Rxd4 1-0

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.27"]
[Round "11"]
[White "Hoffman, Alejandro"]
[Black "Morovic Fernandez, Ivan"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2488"]
[BlackElo "2527"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,74,0,2,0,11,0,0,0,47,21,43,0,12,4,5,-8,0,-27,-9,-21,-25,-43,-31,-22,-12,-21,-18,-26,0,0,0,-29,-20,-31,-45,-53,-41,-118,-82,-89,-64,-95,-57,-56,-56,-79,-87,-89,-57,-63,-50,-103,-50,-69,-86,-85,-62,-456,-462,-696,-718,-731,-718,-29986,-29987]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 cxd4 6. Nxd4 Ne4 7. Bd2 {E20: Nimzo-Indian: 4 g3 and 4 f3} (7. Qc2 $5 {feels hotter.} Nxc3 8. bxc3 Be7 9. Bg2 O-O 10. O-O) (7. Qc2 Qa5 8. Bg2 Nxc3 9. O-O Nc6 10. bxc3 Bxc3 11. Nb3 Nd4 12. Nxd4 Bxd4 13. Rb1 d6 14. Bb2 Bxb2 15. Qxb2 {0-1 (90) Carlsen,M (2855)-Caruana,F (2804) Leuven 2016}) 7... Bxc3 8. Bxc3 (8. bxc3 $5 {seems wilder.} e5 9. Nb3 Qc7 10. Bg2 Qxc4 11. Na5) 8... Nxc3 9. bxc3 {The position is equal.} a6 10. Bg2 Qc7 11. Qb3 d6 $1 12. O-O Nd7 13. Rab1 O-O 14. f4 $146 (14. Nc2 Rb8 {½-½ (54) Nolte,R (2479)-Ghaem Maghami,E (2593) Subic Bay 2009}) 14... Rd8 15. Kh1 Nc5 16. Qd1 Bd7 17. f5 e5 18. Nc2 Bc6 $36 {[%mdl 2048] Black has good play.} 19. Ne3 f6 20. Nd5 Qf7 21. g4 Kh8 22. Rb6 Rac8 23. Qd2 e4 24. Nf4 ({White should try} 24. Rb4 $15) 24... Qxc4 25. Rb4 Qf7 26. Rd4 Qe7 27. Qe3 Kg8 28. Rfd1 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 29. h4 Bb7 30. c4 b4 31. Bh3 (31. Kh2 $15) 31... Nd3 (31... Qe5 $17 32. Rg1 a5) 32. Nd5 ({Don't take} 32. Ne6 $2 {[#]} Nf2+ $1 {[%mdl 512]} 33. Qxf2 e3+ 34. Qg2 Bxg2+ $19) 32... Bxd5 $1 33. cxd5 Nb2 34. Rg1 $2 {[%mdl 8192]} ({Better is} 34. Rc1 $15 Rxc1+ 35. Qxc1) 34... Rc3 $19 35. Qd2 (35. Qxe4 $142 Rxh3+ 36. Kg2) 35... Rxh3+ 36. Kg2 Rxh4 {[#] aiming for ...Qe5.} 37. Kg3 Qe5+ 0-1

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.27"]
[Round "11"]
[White "Slipak, Sergio"]
[Black "Flores, Diego"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2465"]
[BlackElo "2568"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,40,38,47,16,1,14,17,-20,0,-25,0,0,15,23,55,66,118,95,99,112,112]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bg5 h6 8. Bh4 Bg7 9. e3 O-O 10. Nd2 Na6 11. Be2 {A61: Modern Benoni: Nf3 without early e4} (11. e4 Nc7 12. a4 Rb8 13. Bd3 a6 14. a5 Bd7 15. O-O Bb5 16. Qf3 b6 17. axb6 Rxb6 18. Ra2 Qe7 19. Nxb5 axb5 20. b3 Rfb8 21. Qe2 {½-½ (21) Akobian,V (2600)-Antic,D (2505) Ledyards 2006}) 11... Nc7 {LiveBook: 7 Games} 12. e4 b5 13. O-O $146 {The position is equal.} (13. Bxb5 Rb8 14. Bd3 g5 15. Bg3 Rxb2 {1-0 (29) Akobian,V (2417)-Khruschiov,A (2281) Moscow 2000}) 13... b4 14. Na4 Re8 {[#] aiming for ...g5.} 15. Bd3 Bd7 16. a3 bxa3 17. Rxa3 ({Much worse is} 17. bxa3 g5 18. Bg3 c4 19. Nxc4 Nxe4 $17) 17... Rb8 18. Nc3 Bb5 (18... Nb5 $14) 19. Nxb5 $16 Nxb5 20. Ra6 Nc7 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.27"]
[Round "11"]
[White "Garcia Palermo, Carlos"]
[Black "Darcyl, Tomas"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2450"]
[BlackElo "2405"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,99,35,25,35,30,0,18,28,53,45,58,36,63,61,77,66,61,72,94,22,80,68,88,78,110,76,70,42,67,89,87,26,55,12,27,0,0,0,0,0,93,85,85,90,93,93,97,89,100,100,100,100,100,90,134,98,92,92,94,85,85,50,51,58,72,13,74,75,218,67,89,8,8,8,225,233,412,115,115,115,115,115,115,81,191,8,8,8,8,8,8,8]} 1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Be3 {D70: Grünfeld: Unusual White 3rd moves (met by ...d5)} ({Relevant:} 6. Nc3 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. O-O-O Qd6 10. Nb5 Qd7 11. Kb1 Rd8 12. d5 a6 13. Nc3 Qe8 14. Qc1 Na5 15. Bf4 Rd7 16. Bh6 Bxh6 17. Qxh6 {½-½ (31) Nakamura,H (2787)-So,W (2794) Douglas 2016}) 6... Bg7 7. Qd2 c6 8. Nc3 Be6 9. O-O-O Bc4 {Black wants to play ...Bxf1.} 10. Nge2 Qd6 $146 ({Predecessor:} 10... N8d7 11. Bh6 Bxh6 12. Qxh6 Qc7 13. b3 Bxe2 14. Bxe2 {1-0 (49) Quiroga,F (2440)-Palmisano,J La Carlota 1995}) 11. b3 Qa3+ 12. Qb2 $1 {[%cal Rb2a3]} Qxb2+ 13. Kxb2 Ba6 14. f4 ({Better is} 14. h4 $16) 14... O-O (14... f5 $11) 15. g4 $16 N8d7 16. Bg2 Rac8 17. Ng3 c5 18. d5 Bxc3+ 19. Kxc3 c4 20. Kb2 (20. Kb4 $16) 20... Nc5 $11 21. Bxc5 Rxc5 ({But not} 21... c3+ $6 22. Kxc3 Rxc5+ 23. Kb2 $16) 22. e5 cxb3 23. axb3 Rfc8 {Strongly threatening ...Rc2+.} 24. Rc1 {[#]} Bd3 (24... Bc4 $1 $11 {[%mdl 512] keeps the balance.} 25. bxc4 Nxc4+ 26. Kb1 Rb5+ 27. Ka1 Ra5+ 28. Kb1 Rb5+ 29. Ka1 Ra5+ 30. Kb1 Rb5+) 25. Rxc5 $16 Rxc5 26. Rc1 Rxc1 27. Kxc1 {[%mdl 4096] Endgame KBN-KBN} Nd7 28. Kd2 Ba6 29. Ne4 b6 30. Kc3 Kf8 31. Kd4 h6 32. g5 hxg5 33. fxg5 ({Of course not} 33. Nxg5 Nc5 $11) 33... Be2 34. Nc3 Bg4 35. Bf1 Nc5 36. Bc4 a5 37. d6 (37. Na4 $16 Nxa4 38. bxa4) 37... exd6 (37... Bd7 $11) 38. exd6 Bf3 {[#]} (38... Bd7 $16) 39. h4 $2 ({White should play} 39. Na4 $1 $18) 39... Bc6 $14 40. Na2 (40. Nb1 $16) 40... Ke8 $11 41. b4 axb4 $2 (41... Ne4 $11 {and Black has nothing to worry.}) 42. Nxb4 $18 Bb7 $2 (42... Ba4 43. Nd5 Nd7 44. Nc7+ Kf8) 43. Nd5 $2 (43. Nd3 $18 {and the rest is easy.}) 43... Bxd5 $16 44. Kxd5 {KB-KN} Nd7 45. Be2 Kd8 46. Kc6 {Threatens to win with h5.} f6 47. Kd5 $2 ({White has to play} 47. gxf6 $18 {And now Bd3 would win.} Nxf6 48. Bd3 (48. Kxb6 Kd7 $11)) 47... fxg5 $1 $11 {The position is equal.} 48. hxg5 Nf8 49. Bd3 Nh7 50. Bxg6 1/2-1/2

[Event "Memorial Jorge Szmetan 2017"]
[Site "Buenos Aires"]
[Date "2017.04.27"]
[Round "11"]
[White "Van Riemsdijk, Herman C"]
[Black "Bachmann, Axel"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2318"]
[BlackElo "2646"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2017.04.17"]
[EventType "tourn"]
[EventCountry "ARG"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,58,7,6,10,14,-28,26,11,26,26,16,16,40,23,66,66,218,0,26,0,0,0,0,0,0,0,0,0,1,0,1,0,8,0,9,0,6,0,7]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O h5 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2} 9. Re1 Nxd4 10. Qxd4 Bc5 11. Bf4 d6 $1 {LiveBook: 14 Games} ({Much weaker is} 11... Bxd4 $6 12. Bxc7 Ng4 13. Re2 $16) ({Of course not} 11... Qb6 $6 12. Qd2 $16) 12. Qd2 {aiming for e5.} Ng4 13. Nd1 {Strongly threatening b4.} Ne5 $146 (13... e5 $142 14. Be3 Nxe3 15. Nxe3 Be6) (13... a5 14. a3 Bd7 15. Rc1 a4 16. b4 {½-½ (31) Lu,S (2562)-Yu,Y (2675) China 2013}) 14. Be3 h4 15. Bxc5 Qxc5 16. Ne3 hxg3 17. hxg3 b5 18. Rad1 Ke7 $2 {[#]} (18... Ra7 $14) 19. c3 $2 (19. Nf5+ $1 $18 {[%mdl 512]} Kf6 (19... exf5 20. exf5) 20. Qxd6 (20. Nxd6 Kg6 21. Qe3 Qxe3 22. Rxe3 Nc4 $18) 20... Qxd6 21. Nxd6) 19... Bb7 $11 20. Qd4 Rac8 {The position is equal.} 21. f4 Qxd4 22. Rxd4 Nc6 $1 {[%cal Rc6d4]} 23. Rd2 Na5 24. Red1 Rhd8 25. Kf2 g6 26. Rd4 Nc6 27. R4d2 Na5 28. Rd4 Nc6 29. R4d2 Na5 1/2-1/2

