[Event "Festival Szmetan-Giardelli 2018"] [Site "Buenos Aires"] [Date "2018.12.06"] [Round "2"] [White "Mareco, Sandro"] [Black "Flores, Diego"] [Result "1/2-1/2"] [ECO "D30"] [WhiteElo "2656"] [BlackElo "2631"] [Annotator "TA"] [PlyCount "79"] [EventDate "2018.12.04"] [EventType "tourn"] [EventCountry "ARG"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,79,33,35,18,22,22,27,13,43,13,26,20,20,16,20,20,25,19,29,0,0,0,0,0,0,0,21,-10,-9,-8,-12,-39,-13,-16,-20,-41,-17,-48,-19,-22,-12,-20,-8,-14,-8,-47,-37,-64,-72,-74,-78,-80,-47,-47,-47,-48,-16,-21,-20,-31,-28,-52,-5,-6,-3,-8,0,0,0,-10,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 g6 (4... c5 5. Nc3 a6 6. cxd5 exd5 7. Be2 Nc6 8. O-O cxd4 9. Nxd4 Bd6 10. b3 Be5 11. Nxc6 bxc6 12. Bb2 h5 13. f4 Bb8 14. Na4 Ba7 15. Bd4 Bg4 16. Bxg4 hxg4 17. Rc1 {1-0 (68) Mamedyarov,S (2801)-Navara,D (2741) Biel 2018}) 5. b3 Nbd7 6. Nc3 {D30: Queen's Gambit Declined: Systems without Nc3} Bg7 7. Bd3 O-O 8. O-O {White has an edge.} dxc4 9. Bxc4 b6 10. Ba3 Re8 11. Qe2 $146 ({Predecessor:} 11. Rc1 Bb7 12. Qe2 Qb8 13. h3 Bf8 14. Bxf8 Rxf8 {1-0 (26) Ret,A (1458)-Svetinsky,V (1405) Hradec Kralove 2016}) 11... a6 12. Rfd1 Bb7 13. Rac1 Qb8 {Threatens to win with ...b5.} 14. e4 c5 15. dxc5 Nxc5 16. Bxc5 bxc5 17. Bd3 Qf4 18. h3 c4 19. bxc4 Nd7 20. Na4 Bc6 {[%mdl 1024] Black has compensation.} 21. Bc2 Red8 22. g3 Qc7 23. Rb1 Rac8 24. Qe3 Bf8 25. Qc3 Rb8 26. Rxb8 Rxb8 27. a3 Bg7 28. Qe3 Qa5 29. Qd2 Qxd2 30. Rxd2 Bf8 31. Nd4 Bxa4 $1 32. Bxa4 Nb6 33. Bb3 Bxa3 34. Nc6 Rc8 35. Ra2 Bf8 36. Ne5 {The position is equal.} Ra8 37. Rc2 Rc8 38. Ra2 Ra8 39. Rc2 Rc8 40. Ra2 {Accuracy: White = 55%, Black = 62%.} 1/2-1/2 [Event "Festival Szmetan-Giardelli 2018"] [Site "Buenos Aires"] [Date "2018.12.08"] [Round "5"] [White "Mareco, Sandro"] [Black "Darcyl, Tomas"] [Result "1-0"] [ECO "A16"] [WhiteElo "2656"] [BlackElo "2366"] [Annotator "TA"] [PlyCount "57"] [EventDate "2018.12.04"] [EventType "tourn"] [EventCountry "ARG"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,57,39,38,36,51,146,161,184,183,185,183,187,186,189,161,160,168,166,143,152,143,139,150,135,135,141,108,110,118,137,140,245,265,394,422,412,389,571,564,29977,29977]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 Nc6 8. h4 {A16: English Opening: 1...Nf6 with ...d5} (8. Nf3 O-O 9. Qa4 Qd7 10. d4 Nxd4 11. Qxd7 Nxf3+ 12. Bxf3 Bxd7 13. Rxb7 Bxc3+ 14. Bd2 Be5 15. Bf4 Bxf4 16. gxf4 {½-½ (28) Topalov,V (2749)-Mamedyarov,S (2800) Paris 2017}) 8... h6 9. d4 O-O 10. Nf3 {LiveBook: 4 Games. White is slightly better.} e5 11. O-O Bf5 $146 (11... exd4 $14 12. Nxd4 Nxd4 13. cxd4 Qxd4) ({Predecessor:} 11... exd4 12. cxd4 Rb8 13. d5 Bf5 14. Rb3 Ne7 15. Nd4 Bg4 {½-½ (71) Disu,K (1910)-Calvert,D (1984) London 2015}) 12. Rxb7 $16 Be4 {[%cal Re5d4]} 13. Nxe5 Bxg2 14. Kxg2 Qc8 15. Rb5 ({Resist} 15. Nxc6 $6 Qxb7 16. d5 Qa6 $14) 15... Qa6 16. a4 Nxe5 17. dxe5 Rad8 18. Qc2 Qc6+ 19. Kg1 a6 20. Rb4 Rfe8 21. Bf4 Rd5 22. Qb3 Rc5 23. Rc1 Bxe5 24. Bxh6 Bxc3 {[#]} (24... a5 $16 25. Rb8 Rxb8 26. Qxb8+ Kh7) 25. Rb8 $1 $18 {Hoping for Rxc3!} ({Don't do} 25. Rf4 $6 Re7) 25... Rxb8 (25... Bd4 $142) 26. Qxb8+ Kh7 27. Bf8 Rc4 {[#]} (27... Rf5 {was worth a try.} 28. Qb3 (28. Bb4 Rxf2 29. Kxf2 Bd4+ {[%mdl 64] Discovered Attack} 30. e3 Qxc1 $14) 28... Qe8 29. Rxc3 Qxf8 30. Rxc7 Rf6) 28. Qb3 $1 {aiming for Rxc3!} a5 {[#]} 29. Rxc3 $1 {[%mdl 512] Accuracy: White = 87%, Black = 44%.} 1-0 [Event "Festival Szmetan-Giardelli 2018"] [Site "Buenos Aires"] [Date "2018.12.11"] [Round "7"] [White "Mareco, Sandro"] [Black "Perez Ponsa, Federico"] [Result "1/2-1/2"] [ECO "E62"] [WhiteElo "2656"] [BlackElo "2554"] [Annotator "TA"] [PlyCount "82"] [EventDate "2018.12.04"] [EventType "tourn"] [EventCountry "ARG"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,82,31,32,40,21,25,23,9,25,23,16,43,13,30,22,56,18,42,18,31,25,35,16,16,11,14,14,14,14,14,13,13,13,16,14,13,14,10,0,0,0,0,0,0,4,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. c4 g6 2. g3 Bg7 3. Bg2 Nf6 4. d4 O-O 5. Nc3 d6 6. Nf3 Bf5 7. Nh4 Bc8 8. O-O c6 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} 9. b3 (9. Nf3 Bf5 10. b3 Ne4 11. Bb2 Nxc3 12. Bxc3 Be4 13. Re1 c5 14. Qd2 Nc6 15. d5 Bxf3 16. Bxg7 Kxg7 17. Bxf3 Ne5 18. Bg2 a6 19. a4 Qb6 20. f4 Nd7 {1-0 (79) Bindrich,F (2588)-Dobrev,N (2333) Berlin 2018}) 9... e5 $146 ({Predecessor:} 9... Nbd7 10. e4 e5 11. Nf3 exd4 12. Nxd4 Re8 13. Rb1 Ne5 14. Bb2 Nh5 15. f4 Bg4 16. Nf3 Bxf3 17. Bxf3 Nxf3+ 18. Qxf3 Qd7 19. Kg2 f5 20. Rfd1 Bxc3 21. Qxc3 {½-½ (40) Kotoucek,J (1796)-Docekalova,Z Ostrava 2006}) 10. dxe5 dxe5 11. Ba3 Qxd1 12. Raxd1 Re8 13. Nf3 {LiveBook: 3 Games} Na6 14. h3 Bf8 15. Bxf8 Kxf8 16. Rd6 Kg7 17. Rfd1 Re7 18. a3 Bf5 19. b4 Rae8 20. Rd8 Bc2 {[#] aiming for ...e4.} 21. R1d6 Nc7 22. Rxe8 Rxe8 23. b5 cxb5 {The position is equal.} 24. cxb5 Re7 25. b6 axb6 26. Ne1 Bb3 27. Rxb6 Bd5 $1 28. Nd3 Bxg2 29. Kxg2 Ncd5 30. Nxd5 Nxd5 $11 {[%mdl 4096] Endgame KRN-KRN} 31. Rb5 Nc3 32. Rxe5 Rxe5 33. Nxe5 Nxe2 {KN-KN} 34. Kf3 Ng1+ 35. Ke3 Nxh3 36. Nc4 Kf6 37. Nd6 Ke6 38. Nxb7 Kd5 39. Nd8 f5 40. Kf3 Ng5+ 41. Kf4 Nh3+ {Accuracy: White = 60%, Black = 60%.} 1/2-1/2 [Event "Festival Szmetan-Giardelli 2018"] [Site "Buenos Aires"] [Date "2018.12.13"] [Round "9"] [White "Mareco, Sandro"] [Black "Slipak, Sergio"] [Result "1-0"] [ECO "E05"] [WhiteElo "2656"] [BlackElo "2421"] [Annotator "TA"] [PlyCount "123"] [EventDate "2018.12.04"] [EventType "tourn"] [EventCountry "ARG"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,123,20,3,18,-26,39,6,8,-20,52,43,50,58,40,13,26,28,19,24,12,23,77,74,56,59,79,18,26,15,12,8,25,0,14,17,28,37,37,37,22,20,36,35,33,33,33,37,44,36,43,28,37,31,67,62,60,54,62,62,62,34,62,38,95,81,88,91,102,105,101,106,109,110,120,102,109,60,70,56,58,47,61,41,52,41,127,127,114,113,272,268,456,437,448,447,455,455,430,415,424,412,508,471,426,425,571,570,735,599,560,537]} 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Qc2 c6 {E05: Open Catalan: 5 Nf3 Be7} (7... b6 8. Ne5 Qxd4 9. Bxa8 Qxe5 10. Bf3 Nd5 11. Qxc4 Ba6 12. Qa4 c5 13. Na3 Qc7 14. Rd1 Qc8 15. Bd2 {½-½ (27) Cheparinov,I (2711)-Bacrot,E (2677) Zagreb 2018}) 8. a4 {LiveBook: 8 Games} a5 9. Na3 $146 {[#]} ({Predecessor:} 9. Qxc4 Na6 10. Nc3 Nd5 11. e4 Ndb4 12. Rd1 Qe8 13. Bf4 Kh8 14. Rac1 Bd7 15. Qe2 f6 16. Nd2 c5 17. d5 e5 {1-0 (31) Urban,K (2490)-Arlandi,E (2470) Pula 1997}) 9... Na6 (9... b5 $1 $11 {[%mdl 512]}) 10. Nxc4 Nb4 11. Qb3 b6 ({Black should try} 11... b5 $11 12. Nce5 Ba6) 12. Nfe5 $14 Bb7 13. Rd1 Qc7 14. Bf4 Nfd5 15. Bd2 b5 16. Na3 bxa4 17. Qxa4 Nb6 (17... Ba6 $11) 18. Qb3 $16 c5 19. Nb5 Qb8 20. Bxb7 (20. e4 $1 $16) 20... Qxb7 $11 21. dxc5 Bxc5 22. Bxb4 axb4 23. Rac1 Rac8 24. Nd3 Nd5 25. Rxc5 Rxc5 26. Nxc5 Qxb5 {[%mdl 64] Double Attack} 27. Nd3 h6 28. Rc1 Ra8 29. Qc4 Qb6 30. Kg2 Rb8 31. Qe4 Qb5 32. Rc5 Qb7 33. Rc4 Qb5 34. Qd4 Rd8 {White must now prevent ...Ne3+!} 35. Qc5 Qb7 {( -> ...Nf4+)} 36. Qc6 Qb8 37. Qa6 Kh7 38. Kg1 (38. b3 {seems wilder.} h5 39. Qc6 g6 40. h3 Kg7 41. Qa6) 38... Rd6 (38... b3 $14) 39. Rc8 $16 Rxa6 40. Rxb8 {[%mdl 4096] Endgame KRN-KRN} Ra1+ 41. Kg2 Rd1 42. Nxb4 Nxb4 43. Rxb4 {KR-KR} g5 44. Kf3 Kg6 45. h4 f5 46. hxg5 hxg5 47. Ke3 Kf6 48. Rd4 Rb1 49. Rd2 e5 ({Black should play} 49... Rf1 $1 $14) 50. Kd3 $1 Rc1 51. Rc2 e4+ $2 (51... Rf1 $16 {might work better.}) 52. Kc3 $1 $18 Rf1 $2 {[#]} (52... Rd1 53. b4 e3 54. fxe3 Rg1) 53. e3 $1 Ke5 {[#]} 54. b4 $1 {[%cal Bb2b4,Bb4b5][%mdl 32]} Rb1 55. Kc4 Kd6 56. b5 Kc7 57. Rd2 Kb6 58. Rd6+ {White is clearly winning.} Kc7 59. Rf6 Rb2 60. Rxf5 Kb6 61. Rf6+ Kb7 62. Kd4 {Accuracy: White = 65%, Black = 37%.} 1-0 [Event "Festival Szmetan-Giardelli 2018"] [Site "Buenos Aires"] [Date "2018.12.14"] [Round "11"] [White "Mareco, Sandro"] [Black "Iturrizaga Bonelli, Eduardo"] [Result "1/2-1/2"] [ECO "A33"] [WhiteElo "2656"] [BlackElo "2628"] [Annotator "TA"] [PlyCount "64"] [EventDate "2018.12.04"] [EventType "tourn"] [EventCountry "ARG"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,64,1,-5,-1,-27,-31,-20,-6,-10,-11,-24,-10,-19,-19,-87,-91,-138,-140,-122,-122,-131,-58,-112,-99,-112,-19,-21,-20,-20,-29,-22,-12,-19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 Be7 7. e4 O-O {A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6} 8. Nb3 (8. Nf3 Qa5 9. Bd2 Qh5 10. Be2 d5 11. exd5 exd5 12. cxd5 Nxd5 13. Nd4 Qe5 14. Nxc6 bxc6 15. O-O {½-½ (47) So,W (2780)-Vachier Lagrave,M (2779) Saint Louis 2018}) 8... b6 9. Be2 {LiveBook: 7 Games} Ba6 10. O-O $146 ({Predecessor:} 10. Bf4 d6 11. O-O Rc8 12. Nd2 Nd4 13. Re1 Nxe2+ 14. Qxe2 Qc7 15. b3 Rfd8 16. Nf3 Nh5 {½-½ (16) Noble,M (2574)-D'Adamo,E (2557) ICCF email 2011}) 10... Ne5 {[%cal Bc6e5,Be5g4,Bg4f2][%mdl 32]} 11. Nd2 Qc7 12. b3 Rad8 13. Bb2 Bb7 14. Re1 Qb8 15. Nf3 (15. b4 $11 {keeps the balance.}) 15... Neg4 $17 {aiming for ...Bc5.} 16. h3 {[#]} Nxf2 $1 {[%mdl 512]} 17. Kxf2 Bc5+ 18. Nd4 Qe5 ({Black should play} 18... e5 $17 19. Nd5 Nxe4+ 20. Kg1 Rde8) 19. Na4 (19. Ncb5 $15) 19... Nxe4+ 20. Kg1 Qg3 (20... d5 $17 {White must now prevent ...Bd6.} 21. Nxc5 bxc5) 21. Nxc5 $11 Qe3+ 22. Kh2 Qf4+ ({Much worse is} 22... bxc5 $6 23. Bf3 $16) 23. Kg1 {Strongly threatening Nxe4.} Qf2+ {The position is equal.} ({Reject} 23... bxc5 $6 24. Bf3 $16) 24. Kh2 bxc5 25. Nf3 $1 {And now Be5 would win.} Qg3+ 26. Kg1 {Threatens to win with Be5.} Qf2+ 27. Kh2 Qg3+ 28. Kg1 {Be5 is the strong threat.} Nf2 29. Be5 Nxh3+ $1 30. Kh1 Nf2+ 31. Kg1 Nh3+ $1 32. Kh1 Nf2+ {Accuracy: White = 61%, Black = 72%.} 1/2-1/2