[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.26"]
[Round "1.1"]
[White "Colmenares, Aurelio"]
[Black "Brunello, Sabino"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2302"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,80,34,27,33,16,29,15,40,8,0,-20,-22,-4,42,39,23,37,25,31,29,0,21,-10,10,-40,-33,-84,-26,-44,-31,-70,0,0,0,-81,-81,-68,-74,-86,-18,-23,-13,-8,-20,-60,-43,-50,-6,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O h6 7. Nbd2 Ne7 {B12: Caro-Kann: Advance Variation.} 8. Nb3 Qc7 9. Bd2 g5 10. Ne1 c5 11. Nxc5 (11. c4 {keeps more tension.} dxc4 12. Bxc4 a6 13. Rc1 b5 14. Be2) 11... Nxc5 12. dxc5 Nc6 13. Bd3 Bxc5 14. Bxf5 exf5 15. Nd3 Bb6 16. Re1 O-O-O $1 17. c3 Rhe8 18. Qf3 f4 {[#]} 19. b4 $146 (19. g3 $15) ({Predecessor:} 19. Qh3+ Qd7 20. Qxd7+ Rxd7 21. g3 fxg3 22. hxg3 Rde7 23. Kg2 Nxe5 24. Nb4 Nc4 25. Rxe7 Rxe7 26. Nxd5 {½-½ (79) Arencibia Rodriguez,W (2506)-Yakubboev,N (2422) Sharjah 2016}) 19... Kb8 (19... Qd7 $17) 20. a4 {And now a5 would win.} Qc8 ({Not} 20... Nxe5 $2 21. Nxe5 Rxe5 22. a5 $18) 21. g3 fxg3 (21... Qh3 $1 $15) 22. hxg3 $11 Bc7 {[%cal Rc6e5]} 23. Kg2 (23. Qxf7 $11 Nxe5 24. Nxe5 Bxe5 25. Qg6) 23... Nxe5 $17 24. Nxe5 Bxe5 25. Qxf7 {[#]} Rf8 (25... d4 $1 $17 {[%cal Rd4c3]} 26. Rac1 Qc6+ 27. Qf3 Qxa4) 26. Qg6 $11 Bxc3 27. Rac1 $132 {[%mdl 2048] White puts up resistance} d4 {White must now prevent ...Qd7.} ({Wrong is} 27... Bxd2 $2 28. Rxc8+ Rxc8 29. Qd6+ Ka8 30. Re7 $18) 28. Qe4 Rde8 29. Qd5 Rxe1 (29... Qc7 {with more complications.} 30. Rxe8+ Rxe8 31. b5 Rc8 32. Qe6 Qc5) 30. Bxe1 {The position is equal.} Qc7 31. Bxc3 $1 dxc3 {[#]} 32. Rxc3 $1 {[%mdl 512]} Rxf2+ (32... Qxc3 33. Qd6+) 33. Kxf2 {Intending Qg8+ and mate.} Qxc3 {[%mdl 4096] Endgame KQ-KQ} 34. Qd8+ Qc8 35. Qd6+ Qc7 36. Qf8+ Qc8 37. Qd6+ Ka8 38. Qxh6 Qf5+ 39. Ke3 {Qh8+ would kill now.} Qe5+ 40. Kf3 {Threatens to win with Qf8+.} Qf5+ {Accuracy: White = 75%, Black = 72%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.26"]
[Round "1.2"]
[White "Baenziger, Fabian"]
[Black "Alboronz Cabrera, Daniel Carlos"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2415"]
[BlackElo "2566"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,44,0,7,7,0,3,26,35,12,16,3,0,0,0,-5,-117,-120,-127,-127,-163,-155,-178,-178,-171,-163,-233,-243,-230,-202,-275,-276,-308,-301]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. d4 dxc4 7. Qc2 b5 8. a4 {E05: Open Catalan: 5 Nf3 Be7.} b4 9. Nfd2 Nd5 10. Nxc4 {White has an edge.} c5 11. dxc5 Ba6 12. Rd1 {And now e4 would win.} Nd7 13. b3 {Threatens to win with e4.} Rc8 {[#]} 14. Bb2 $146 (14. e4 $1 $11 N5f6 15. e5) ({Predecessor:} 14. e4 N5f6 15. e5 Nd5 16. Bb2 Nxc5 17. Nbd2 Qc7 18. Rac1 Rfd8 19. Bf1 Qb8 20. Bd4 {1-0 (33) Tsolakidou,S (2431)-Solozhenkina,E (2283) New Delhi 2019}) 14... Nxc5 $17 15. Nbd2 Bf6 16. Ne4 {[#]} Bxb2 $1 17. Nxc5 Bxa1 18. Nxa6 {[#]} Qf6 $1 19. Qc1 (19. Rd3 {was worth a try.}) 19... Bd4 $19 20. e3 Bc3 21. e4 Nb6 22. Nd6 Rcd8 {Accuracy: White = 53%, Black = 100%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.26"]
[Round "1.3"]
[White "Studer, Noel"]
[Black "Petrov, Nikita"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2546"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,79,42,25,58,32,48,48,50,43,57,-18,35,37,25,1,75,63,101,30,34,10,27,28,30,35,34,22,51,59,59,0,0,0,0,0,0,0,9,0,0,-87,34,23,140,48,132,-26,311,319,387,381,347,215,216,213,454,458,435,429,501,451,437,414,539,381,377,367,720,714,706,705]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 Nc6 {E71: King's Indian: 4 e4 d6 5 h3.} 7. d5 Ne5 8. g4 c6 {White is slightly better.} 9. f4 Ned7 {[#]} 10. Bg2 $1 $146 {[%mdl 8] An important novelty.} ({White should play} 10. Nf3 $14) ({Predecessor:} 10. Nf3 cxd5 11. cxd5 b6 12. Nd4 Nc5 13. Qf3 Bb7 14. g5 Nfxe4 15. Nxe4 Bxd5 16. Nf6+ exf6 17. Qxd5 {1-0 (48) Caruana,F (2822)-Firouzja,A (2723) Wijk aan Zee 2020}) 10... cxd5 (10... Nb6 $11) 11. cxd5 $14 b5 12. a3 a6 (12... Nb6 $11) 13. Nge2 $16 Bb7 14. Nd4 ({Better is} 14. O-O $16) 14... Rc8 15. O-O Nb6 16. Qe2 Nc4 17. Bf2 Nd7 18. Rfd1 Nc5 19. e5 $1 Qe8 {[%cal Rd6e5]} ({But not} 19... dxe5 $2 20. Nc6 $18) 20. b4 (20. a4 $1 $14 b4 21. Na2 (21. Qxc4 bxc3 22. bxc3 Ne4 $11) 21... dxe5 22. Nc6 {[%mdl 64] Double Attack} Nxa4 23. b3 (23. Qxc4 Bxc6 24. dxc6 Nxb2 $14 {[%mdl 64] Double Attack})) 20... dxe5 $11 21. fxe5 Nd7 22. e6 Ndb6 $1 23. Rac1 Bh6 24. Ra1 Bg7 25. Ra2 {[#]} (25. Rac1 $11 {keeps the balance.}) 25... fxe6 (25... f5 $1 $17) 26. Qxe6+ $14 Kh8 {[#]} (26... Qf7 $1 $11) 27. Re2 ({White has to play} 27. Qe1 $1 $16) 27... Nd6 ({Black should try} 27... Ba8 $14) 28. Nc6 $2 (28. Qe3 $16) 28... Nxd5 $2 {[%mdl 8192] Now Black is done in.} (28... Rxf2 $1 $11 29. Kxf2 Bxc3) 29. Nxd5 $18 Qxc6 30. Bc5 Nc4 31. Qxc6 Rxc6 32. Rxe7 Bc8 $2 (32... Nb2) 33. Nc7 Rxc5 34. bxc5 Bb2 35. Re8 Rxe8 36. Nxe8 Bxa3 37. Rd8 Bxc5+ 38. Kh1 Be6 $2 (38... Bxg4 39. hxg4 Be7) 39. Nc7+ {[%mdl 64] Double Attack, Discovered Attack} Bg8 40. Bd5 {Accuracy: White = 60%, Black = 40%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.26"]
[Round "1.4"]
[White "Gaehwiler, Gabriel"]
[Black "Donchenko, Alexander"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2407"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,54,20,25,20,20,29,27,8,23,-37,-42,-112,-100,-112,-112,-110,-110,-118,-104,-123,-114,-189,-213,-212,-211,-230,-236,-258,-236,-533,-533,-637,-637,-624,-623,-583,-548,-800,-798,-928,-862,-854,-840,-5181,-2239]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qe2 {B94: Sicilian Najdorf: 6 Bg5 Nbd7.} h6 8. Bh4 g6 9. O-O-O {White has an edge.} e5 10. f4 ({White should try} 10. Nb3 $11) 10... exd4 $15 11. e5 ({White should play} 11. Rxd4 $15 Qa5 12. e5 dxe5 13. fxe5) 11... dxc3 $17 ({Inferior is} 11... dxe5 12. fxe5 Bc5 13. exf6+ Kf8 14. Ne4 $18) 12. exf6+ {[#]} Ne5 $1 {[%mdl 512]} 13. fxe5 {[#]} Be6 $1 {Strongly threatening ...Qa5.} 14. Be1 cxb2+ $40 {[%mdl 128] Black is out for blood.} 15. Kb1 {[#] Black should prevent exd6.} Qc7 $1 {[#]} 16. c4 $146 (16. Qe4 $17 {is a better defense.}) ({Predecessor:} 16. g3 dxe5 17. Bg2 Qc5 18. Qd3 Qb6 19. Bc3 Bd6 20. Bd5 Bc7 21. Ba5 Qxa5 22. Bxe6 {1-0 (55) Sliwicka,A (2293)-Nosacheva,M (2127) Riga 2018}) 16... dxe5 $19 17. Bc3 Bd6 18. Qxb2 O-O 19. Qc1 Rfd8 20. Rxd6 $2 (20. Be2 {was called for.}) 20... Qxd6 {Black is clearly winning.} 21. Qxh6 {[%csl Gf6][%cal Rh6g7]} Bf5+ {[%mdl 64] Discovered Attack} 22. Kb2 {[%csl Gf6][%cal Rh6g7]} Qb6+ 23. Ka3 {[%csl Gf6][%cal Rh6g7]} Qxf6 24. Be2 b5 25. g4 a5 {Hoping for ...b4+.} 26. cxb5 Rac8 27. Qe3 {[#]} Rd3 $1 {[%mdl 512] White got outplayed after the opening. Accuracy: White = 47%, Black = 100%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.26"]
[Round "1.5"]
[White "Stijve, Theo"]
[Black "Diermair, Andreas"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2249"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,107,-4,-6,-6,0,0,0,0,0,36,39,44,44,46,41,47,49,40,10,15,-18,-24,-66,-54,-133,-112,-132,-62,-52,-61,-62,0,-4,0,0,0,0,8,8,8,14,13,15,8,8,65,65,80,38,62,62,62,60,60,60,63,57,57,57,75,57,57,57,75,75,75,57,57,0,15,16,16,16,16,16,16,16,16,0,16,16,16,16,16,0,16,0,16,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c4 g6 7. Nc3 Bg7 8. h3 O-O 9. O-O $1 {[%mdl 4] is recently more successful than 9.Be3.} Nd4 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 10. Nxd4 exd4 11. Ne2 Nd7 12. b4 {[#]} Rb8 $146 ({Predecessor:} 12... a5 13. Bxd7 Bxd7 14. b5 f5 15. exf5 Bxf5 16. Ng3 Be6 17. Ne4 d5 18. Bg5 Qc8 19. cxd5 Bxd5 {½-½ (54) Sadikhov,U (2479)-Brkic,A (2560) Sarajevo 2019}) 13. Bf4 b5 14. cxb5 axb5 15. Bb3 Nb6 16. Qd2 Be6 17. Rfc1 {With the idea Bh6.} Rc8 18. Rc6 Qd7 $1 $36 {[%cal Rd7c6][%mdl 2048] Black has good play.} 19. Rc2 c5 {And now ...c4 would win.} 20. bxc5 ({White should try} 20. Bh6 $1 $15) 20... dxc5 $17 {Hoping for ...c4.} 21. Qa5 Bxb3 (21... Qc6 $1 $17 22. Rcc1 c4) 22. axb3 $15 Ra8 23. Qe1 {[#]} Rxa1 ({Better is} 23... c4 $1 $15 {[%mdl 512]} 24. Rca2 (24. bxc4 bxc4) 24... Rxa2 25. Rxa2 f5 26. bxc4 fxe4) 24. Qxa1 $11 c4 25. bxc4 bxc4 {aiming for ...g5.} 26. Qa6 Ra8 27. Qxb6 cxd3 28. Rc7 $1 {[%cal Rc7d7]} dxe2 29. Rxd7 e1=Q+ {[%mdl 64] Double Attack} 30. Kh2 {Threatening mate with Rd8+.} Rf8 ({Not} 30... Qxf2 $2 {[#]} 31. Qd8+ $1 {[%mdl 512]} Rxd8 32. Rxd8+ Bf8 33. Bh6 $18) ({Black should play} 30... Qxe4 $11 31. Rd8+ Bf8) 31. f3 $14 h5 32. Rd8 Qh4 33. Rxf8+ Bxf8 34. Bg3 Qg5 35. Qxd4 Bc5 36. Qa1 h4 37. Be5 {Black must now prevent Qa8+.} Kh7 38. Bh8 {[%csl Gh8][%cal Ra1g7]} Bd6+ 39. Kh1 {[%csl Gh8][%cal Ra1g7]} Bf8 40. Bf6 Qg3 41. Be5 Qf2 42. Qa8 Bg7 {( -> ...Qf1+). The position is equal.} 43. Qd5 Bxe5 44. Qxe5 $11 {[%mdl 4096] Endgame KQ-KQ} f6 45. Qc7+ Kh6 46. Qf4+ Kg7 47. Qg4 g5 48. Qd7+ Kh6 49. Qd1 Kg6 50. Qg1 Qe2 51. Qb1 Qe3 52. e5+ f5 53. Qa1 Kf7 54. Qa2+ {Accuracy: White = 81%, Black = 88%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.27"]
[Round "2.1"]
[White "Albornoz Cabrera, Daniel Carlos"]
[Black "Colmenares, Aurelio"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2566"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,107,14,12,0,0,0,24,30,34,43,38,42,30,-46,-36,-37,-33,-50,28,29,30,42,36,48,138,109,100,103,85,83,110,21,79,18,25,28,34,17,22,15,15,17,37,14,50,31,45,45,57,30,25,24,39,21,104,107,98,108,261,259,245,249,266,259,244,231,178,72,72,72,113,93,92,89,87,77,77,58,67,23,77,77,77,77,124,124,124,124,29981,29982,29981,29982]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7 10. Qc2 {D43: Semi-Slav: 5 Bg5 h6.} Nbd7 11. Rd1 Nh5 (11... Bb4 {looks sharper.} 12. Ne5 c5 13. O-O Bxc3 14. Qxc3 Nxe4 15. Qe3 Nxg3 16. fxg3 Nxe5 17. Qxe5 O-O) 12. d5 $1 {[%cal Rd5e6] aiming for dxe6.White has an edge.} Nxg3 13. hxg3 exd5 14. exd5 cxd5 {[#]} 15. Nxb5 $146 ({White should play} 15. Nxd5 $11 Bg7 16. Ne3) ({Predecessor:} 15. Nxd5 Bg7 16. Ne3 Qa5+ 17. Kf1 Rd8 18. Nf5 Kf8 19. Rd6 Bxf3 20. gxf3 Ne5 21. Qc3 {1-0 (28) Bok,B (2640)-Saric,I (2667) Khanty-Mansiysk 2019}) 15... Qa5+ $15 16. Nc3 Bg7 17. Nd4 Nf6 (17... Rd8 $15) 18. Nf5 $11 Kf8 19. O-O Rd8 20. Rd2 h5 (20... Ne8 $14) 21. Nxg7 Kxg7 22. Qf5 Rh6 23. Qxg5+ Rg6 24. Qe5 (24. Qf4 $1 $16) 24... Qb6 (24... Re8 $11 25. Qd4 Qb6) 25. Qd4 ({White should try} 25. Bf3 $16) 25... Qxd4 26. Rxd4 Rb8 27. Rfd1 Bc6 28. R1d2 Rg5 29. Kf1 Re5 30. Ke1 Rbe8 31. Kd1 Ne4 32. Nxe4 dxe4 33. Rxc4 e3 34. fxe3 Bxg2 35. Rc7 a5 {[#]} (35... Bd5 $11 {remains equal.}) 36. Bc4 $1 $36 {[%mdl 2048] White is really pushing.} Bf3+ 37. Ke1 Rxe3+ $2 (37... R8e7 $16 38. Rxe7 Rxe7) 38. Kf2 $18 Bg4 39. Rxf7+ Kg6 40. Rd6+ Kg5 41. Bd3 {[%cal Rf7g7]} R3e6 42. Rg7+ (42. Rd5+ $18 {has better winning chances.} Re5 43. Rg7+ Kf6 44. Rg6+ Kf7 45. Rgd6) 42... Kf6 $16 43. Rg6+ Kf7 44. Rgxe6 (44. Rd7+ {is more complex.} Kf8 45. Rxe6 Rxe6 46. Rd4 Re7 47. a3) 44... Bxe6 {[%mdl 4096] Endgame KRB-KRB} 45. Ra6 Rd8 46. Ke2 Bxa2 47. Rxa5 Be6 48. b4 {[%cal Bb2b4,Bb4b5,Bb5b6,Bb6b7][%mdl 32]} Rd4 {[#]} (48... h4 $11 {keeps the balance.}) 49. b5 $1 {[%cal Rb5b6] Hoping for b6.} Rb4 50. Kd2 Bd5 51. Kc3 Rg4 52. b6 Ke6 $2 {[%mdl 8192] [#]} (52... Bg2 $16 53. Rxh5 Ke7) 53. Rxd5 $1 {[%mdl 576] Remove Defender} Kxd5 54. b7 {Accuracy: White = 79%, Black = 59%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.27"]
[Round "2.2"]
[White "Petrov, Nikita"]
[Black "Baenziger, Fabian"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2592"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,93,16,18,-21,-19,-18,8,3,12,0,0,0,0,0,0,-8,-10,0,0,0,3,0,50,58,55,46,47,45,54,50,54,51,52,42,44,12,18,17,13,30,28,16,16,20,47,15,69,72,112,105,111,91,90,48,60,48,42,33,96,98,102,0,96,96,91,89,95,0,350,308,935,5074,2198,1372,5114,5061,5057,2512,4774,5001,2423,2409,1855,915,898,892]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 {B23: Closed Sicilian: Lines without g3.} Nc6 7. d3 Nd4 8. Nxd4 {The position is equal.} cxd4 9. Ne2 e6 10. O-O Ne7 11. f5 {[#]} exf5 $146 ({Predecessor:} 11... gxf5 12. Ng3 Be5 13. exf5 Nxf5 14. Nxf5 exf5 15. Qh5 Qf6 16. Bd5 Rc8 17. Rf2 b6 {0-1 (63) Isik,E (2215)-Emiroglu,C (2291) Denizli 2013}) 12. Bg5 h6 13. Bh4 {exf5 is the strong threat.} O-O 14. exf5 Bxf5 15. Ng3 {Strongly threatening Rxf5!} Be6 (15... Bc8 $5 {[%cal Rg6g5]} 16. Qf3 d5 17. Bxe7 Qxe7 $11) 16. Bxe6 fxe6 17. Qg4 Qd7 18. Bxe7 Qxe7 19. Qxg6 Rf6 20. Qg4 {aiming for Rxf6.} Raf8 21. Nh5 Rf5 22. h4 Kh7 23. Ng3 $36 {[%mdl 2048] White has good play.} Rxf1+ 24. Rxf1 Rxf1+ 25. Nxf1 d5 26. h5 Qf7 27. Nd2 Be5 (27... e5 $11) 28. Nf3 $14 Bf4 29. Kf1 Be3 30. Ke2 $1 Qg7 31. Qh3 Qc7 32. Kd1 Qf7 33. Qg4 Qg7 ({Black should play} 33... a6 $14) 34. Qxe6 $16 Qxg2 35. Qd7+ (35. Qxd5 $6 Qh1+ 36. Ke2 Qg2+ 37. Kd1 Qh1+ 38. Ke2 Qg2+ 39. Kd1 $11) 35... Kh8 (35... Kg8 $1 $11 {remains equal.} 36. Qxd5+ {[%mdl 64] Double Attack} Kf8) 36. Qc8+ (36. Qxd5 $6 Qh1+ 37. Ke2 Qg2+ 38. Kd1 Qh1+ 39. Ke2 Qg2+ 40. Kd1 $11) 36... Kg7 37. Qxb7+ {[%mdl 64] Double Attack} Kf6 {[#]} 38. Qa6+ ({Much worse is} 38. Qxd5 $6 Qh1+ 39. Ke2 Qg2+ 40. Kd1 Qh1+ 41. Ke2 Qg2+ 42. Kd1 $11) (38. Qc6+ $1 $16 Kg7 39. Qc7+ (39. Qxd5 Qh1+ 40. Ke2 Qg2+ 41. Kd1 Qh1+ 42. Ke2 Qg2+ 43. Kd1 $11) 39... Kg8 40. Qc8+ (40. Qb8+ Kf7 $14) 40... Kg7 41. Qd7+ Kh8 42. Qd8+ (42. Qxd5 Qh1+ 43. Ke2 Qg2+ 44. Kd1 Qh1+ 45. Ke2 Qg2+ 46. Kd1 $11) 42... Kg7 43. Qc7+ (43. Qxd5 Qh1+ 44. Ke2 Qg2+ 45. Kd1 Qh1+ 46. Ke2 Qg2+ 47. Kd1 $11) 43... Kf8 44. Qd8+ Kg7 45. Qe7+ (45. Qxd5 Qh1+ 46. Ke2 Qg2+ 47. Kd1 Qh1+ 48. Ke2 Qg2+ 49. Kd1 $11) 45... Kg8 46. Qd8+ Kh7 47. Qe7+ (47. Qxd5 Qh1+ 48. Ke2 Qg2+ 49. Kd1 Qh1+ 50. Ke2 Qg2+ 51. Kd1 $11) 47... Kg8 48. Qe6+ Kh8 49. Qe5+ (49. Qxd5 Qh1+ 50. Ke2 Qg2+ 51. Kd1 Qh1+ 52. Ke2 Qg2+ 53. Kd1 $11) 49... Kh7 50. Qf5+ (50. Qxd5 Qh1+ 51. Ke2 Qg2+ 52. Kd1 Qh1+ 53. Ke2 Qg2+ 54. Kd1 $11) 50... Kg7 51. Qe5+ (51. Qxd5 Qh1+ 52. Ke2 Qg2+ 53. Kd1 Qh1+ 54. Ke2 Qg2+ 55. Kd1 $11) 51... Kh7 52. Qc7+ (52. Qxd5 Qh1+ 53. Ke2 Qg2+ 54. Kd1 Qh1+ 55. Ke2 Qg2+ 56. Kd1 $11) 52... Kg8 53. Qd8+ (53. Qb8+ Kf7 $14) 53... Kh7 54. Qe7+ (54. Qxd5 Qh1+ 55. Ke2 Qg2+ 56. Kd1 Qh1+ 57. Ke2 Qg2+ 58. Kd1 $11) 54... Kg8) 38... Kg7 $2 {[%mdl 8192]} (38... Ke7 $1 $11 {and Black stays safe.} 39. Qb7+ (39. Qxa7+ Kd6 $11) 39... Kd6 40. Qa6+ Ke7 41. Qxa7+ Kd6 42. Qb8+ Kd7 43. Ne5+ Ke7 44. Ng6+ Kd7 45. Nf8+ Ke7 46. Ng6+ Kd7 47. Nf8+ Ke7 48. Ng6+) 39. Qxa7+ $18 Kh8 $2 (39... Kf8 40. Qc5+ Ke8 41. Qc8+ (41. Qxd5 Qh1+ 42. Ke2 Qg2+ 43. Kd1 Qh1+ 44. Ke2 Qg2+ 45. Kd1 $11) 41... Ke7 42. Qc7+ Ke8 43. Qe5+ Kd8 44. Qxd5+ Kc7) 40. Qb8+ {White is clearly winning.} Kh7 41. Qc7+ Kh8 42. Qd8+ Kg7 43. Qe7+ Kg8 44. Qe8+ Kg7 {[#]} 45. Qg6+ $1 Qxg6 46. hxg6 Kxg6 47. a4 {Accuracy: White = 89%, Black = 61%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.27"]
[Round "2.3"]
[White "Donchenko, Alexander"]
[Black "Studer, Noel"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2650"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,103,13,16,13,20,4,17,0,0,0,0,-2,-6,0,0,0,10,5,7,9,13,10,0,-7,13,12,56,63,58,68,60,72,110,110,110,109,119,132,135,137,141,122,181,204,186,152,129,95,192,129,134,123,116,111,98,53,50,0,106,108,122,104,108,69,69,69,69,69,69,69,69,69,69,69,69,69,69,65,777,778,753,753,753,753,700,621,29967,6280,29974,29975,29979,29980,29982,29983,29983,29984]} 1. c4 e5 2. g3 Nf6 3. Bg2 Bc5 4. Nc3 c6 5. e3 O-O 6. Nge2 {A23: English Opening: 1...e5 2 Nc3 Nf6 3 g3 c6.} d5 7. cxd5 Nxd5 8. O-O {The position is equal.} Nxc3 9. Nxc3 Bf5 10. d4 exd4 11. Na4 Be7 {[#] ...b5 is the strong threat.} 12. exd4 {[#]} Bf6 $146 ({Predecessor:} 12... Na6 13. a3 Be6 14. Be3 Re8 15. Re1 Qd7 16. Qc2 Rad8 17. Bf3 Nc7 18. Nc5 Bxc5 19. dxc5 {½-½ (46) Marin,I (2216)-Bolz,B (2269) GER email 2014}) 13. Be3 Na6 14. Qb3 Qa5 15. d5 cxd5 {[#] aiming for ...d4.} 16. Rad1 {[%cal Ba1d1,Bd1d5,Bd5b5][%mdl 32]} ({Much weaker is} 16. Bxd5 Nb4 $15) 16... Be6 {Strongly threatening ...d4.} 17. Bxd5 Bxd5 18. Rxd5 Qb4 19. Qxb4 Nxb4 20. Rb5 a5 21. a3 $36 {[%mdl 2048] White is really pushing.} Nc2 22. Bc5 ({But not} 22. Rxb7 Nxe3 23. fxe3 Rad8 $14) 22... Rfe8 23. Rd1 Re4 24. Nb6 Rae8 25. Nd5 Be5 (25... Bd4 $16 26. Bxd4 (26. Rxa5 f6 $16) 26... Rxd4 27. Rxd4 Nxd4 28. Rxb7 (28. Rxa5 f6 $16) 28... Kf8) 26. Rxb7 h5 27. Ne7+ Kh7 28. Nf5 Rc8 (28... Bf6 $16 {might work better.}) 29. Ba7 (29. Rd5 $18) 29... Re1+ $16 30. Rxe1 Nxe1 31. Kf1 Nf3 32. Kg2 Ne1+ 33. Kf1 (33. Kh3 $14) 33... Nf3 $1 34. h4 Rc2 35. Ne3 Rxb2 36. Rxb2 (36. Rxf7 {is more complex.} Bf6 37. Rd7 Rb3 38. Bc5 Rb5 39. Rd5) 36... Bxb2 {[%mdl 4096] Endgame KBN-KBN} 37. Nc4 Bc3 38. Ke2 Ne5 39. Nxe5 Bxe5 $14 {KB-KB} 40. Kd3 $1 Bd6 $1 {[%cal Rd6a3]} 41. a4 $1 Bb4 $1 42. Kc4 {Threatens to win with Kb5.} Be1 $1 43. Bb6 {Black must now prevent Kb5.} Kg6 $2 {[%mdl 8192] Now Black is done in.} (43... f5 $14) 44. Kb5 $18 Kf5 45. Bxa5 Bxf2 46. Bb4 g5 47. a5 Ke6 48. Kc6 f5 49. Bc5 {White mates.} Bxc5 50. Kxc5 f4 51. gxf4 g4 52. Kd4 {Accuracy: White = 87%, Black = 73%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.27"]
[Round "2.4"]
[White "Diermair, Andreas"]
[Black "Gaehwiler, Gabriel"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2483"]
[BlackElo "2407"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,15,17,25,51,43,68,66,69,72,71,70,60,22,29,16,60,26,34,47,41,37,52,20,33,26,13,-9,-6,-9,0,0,0,0,0,-12,66,57,89,103,110,18,24,16,7,7,25,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,6,6,7,7,7,6,7,0]} 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. O-O b5 5. b3 Bb7 6. c4 {A07: Réti Opening: New York and Capablanca Systems.} bxc4 7. bxc4 dxc4 8. Na3 {[#] White is slightly better.} Be7 $146 ({Predecessor:} 8... Nbd7 9. Nxc4 c5 10. d3 Nd5 11. Bd2 Be7 12. Rb1 Qc8 13. Nfe5 Nxe5 14. Nxe5 O-O {½-½ (77) Meins,G (2430)-Zumsande,M (2422) Germany 2015}) 9. Nxc4 O-O 10. d3 c5 11. Bd2 Bd5 12. Ne3 Bc6 13. Qc2 Nbd7 14. Nc4 Nb6 15. Ba5 Nfd5 16. a3 Qc8 17. Rfc1 Qa6 18. Qd2 Nxc4 19. Rxc4 Rab8 {aiming for ...Rb5.} 20. Ne5 Bb5 21. Rcc1 Bf6 22. f4 c4 (22... Rfc8 $11) 23. a4 $1 $14 {[%cal Ra4b5]} c3 24. Bxc3 Nxc3 25. Qxc3 (25. axb5 $16 Qb6+ 26. e3 Nxb5 27. Rc6) 25... Rfc8 $1 $11 {[%cal Rc8c3]} 26. Qd4 Rxc1+ 27. Rxc1 Qxa4 28. Qxa4 Bxa4 {The position is equal.} 29. d4 Bd8 30. Nc6 Bxc6 $1 31. Rxc6 {[%mdl 4096] Endgame KRB-KRB} Bb6 32. e3 Kf8 33. Kf2 Ke7 34. Be4 g6 35. g4 Kd7 36. g5 Rc8 37. Rxc8 Kxc8 38. Bc6 Kd8 39. Ke2 {Accuracy: White = 81%, Black = 81%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.27"]
[Round "2.5"]
[White "Brunello, Sabino"]
[Black "Stijve, Theo"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2528"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,63,-5,11,-3,22,29,18,7,36,22,35,13,58,66,219,219,224,205,255,251,339,345,474,451,462,475,527,537,538,535,514,458,552,572,633,634,607,605,810,727,815,968,906,805,986,977,971,951,953,944,1325,1183,5418,5410,29993,29994]} 1. e4 c5 2. Nf3 e6 3. Qe2 Nc6 4. g3 Nge7 5. Bg2 d5 6. exd5 {C00: French: Unusual White 2nd moves.} Nxd5 7. O-O Be7 8. Rd1 {The position is equal.} Bf6 9. Nc3 O-O 10. Ne4 b6 11. c4 Nc7 $2 ({Black should try} 11... Ba6 $1 $14) 12. Nxf6+ $18 Qxf6 {[#]} 13. d4 $1 {[%mdl 512]} Ba6 {[#]} (13... cxd4 14. Bg5) 14. dxc5 $146 ({Predecessor:} 14. Ng5) 14... bxc5 15. Rd6 Na5 16. Bg5 Qf5 17. b3 Bb7 18. Be7 {Strongly threatening Nh4.} Qh5 19. Bxf8 Rxf8 20. Rad1 e5 21. Qe3 Ne6 {If Black can now play ...Nd4 this consolidates a bit.} 22. Nxe5 Re8 23. Bf3 Qh3 24. Rd7 {[%mdl 64] Double Attack} Nd4 25. Bxb7 Nxb7 26. Rxb7 f6 27. Rxd4 cxd4 28. Qxd4 {Intending Qd5+ and mate.} fxe5 29. Qd5+ Kh8 30. Rxa7 Qh6 31. Ra8 {[%cal Ra8e8]} Qc1+ {[#]} 32. Kg2 $1 {White took control after the opening. Accuracy: White = 100%, Black = 20%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.28"]
[Round "3.1"]
[White "Colmenares, Aurelio"]
[Black "Petrov, Nikita"]
[Result "1/2-1/2"]
[ECO "B56"]
[WhiteElo "2302"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,100,33,36,22,27,26,31,15,1,-12,0,-10,0,-14,0,-17,0,-16,-13,-22,-11,-22,0,-7,-19,-22,-18,-37,-25,-25,-14,-17,-25,-37,-16,-41,0,-13,0,-7,-7,-11,-9,-19,-16,-18,0,0,0,-14,-10,-59,-14,-14,-14,-18,0,-6,0,-12,-7,-13,0,-16,0,0,0,0,0,0,0,0,0,-27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7 6. Bg5 e6 7. Ndb5 {B56: Classical Sicilian: Unusual Lines.} (7. Be2 {feels hotter.} Be7 8. O-O O-O 9. Qd2 Nc6 10. Nb3) 7... Bxb5 $1 {[%mdl 4] is more profitable than 7...Bc6 at the moment. Played by Magnus Carlsen in December 2019.} 8. Bxb5+ Nc6 9. Qd2 {White is slightly better.} Be7 10. O-O O-O 11. Rad1 Rc8 {[#]} 12. Rfe1 $146 ({Predecessor:} 12. Be2 a6 13. Kh1 b5 14. a3 Qa5 15. f4 h6 16. Bh4 Nxe4 17. Nxe4 Qxd2 18. Rxd2 Bxh4 19. Nxd6 {½-½ (44) Kokarev,D (2478)-Kozlov,V (2092) Voronezh 2002}) 12... Qb6 13. Be3 Qc7 14. f3 a6 15. Bf1 Ne5 16. Qf2 (16. a3 {is interesting.} Rfd8 17. Bd4 b5 18. Qf2 Rb8 19. h3) 16... Nc4 17. Bxc4 Qxc4 18. Rd4 Qc6 19. Red1 b5 20. a4 Rb8 21. axb5 axb5 22. R4d2 Rfd8 23. Ne2 Qb7 24. Nf4 Rbc8 25. Kh1 b4 26. b3 Ra8 27. Qe1 Rdc8 28. Ra1 Qb5 29. Rxa8 Rxa8 30. Rd1 Rc8 31. Nd3 d5 32. e5 {[#] aiming for Bg5.} Nd7 33. Qd2 Ra8 34. Bd4 Nb8 35. Ra1 Rxa1+ 36. Bxa1 Nc6 37. h3 h6 38. Qf2 Qa6 39. Bd4 Qa2 40. Bb2 Qa6 41. f4 Bd8 42. Bd4 Qa2 (42... Bh4 $5 {[%cal Rh4f2]} 43. Qe3 Qa2 $11) 43. Bc5 {The position is equal.} Qa1+ 44. Qe1 (44. Kh2 {is more complex.} Qc3 45. g3 Be7 46. Be3 Qa1 47. Kg2) 44... Qxe1+ 45. Nxe1 Be7 46. Bxe7 Nxe7 $11 {KN-KN} 47. Nd3 Nc6 48. Kg1 f6 49. Kf2 fxe5 50. fxe5 Kf7 {Accuracy: White = 91%, Black = 91%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.28"]
[Round "3.2"]
[White "Baenziger, Fabian"]
[Black "Donchenko, Alexander"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2415"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,31,20,20,22,7,8,9,12,-14,-11,-8,28,32,25,22,59,54,64,75,69,62,108,112,110,105,108,113,117,115,130,94,127,112,125,91,116,106,128,88,89,63,70,57,175,164,161,0,100,0,161,123,165,164,160,156,160,107,107,108,108,108,108,108,100,70,99,53,41,36,37,36,36,32,40,53,48,30]} 1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. Qb3 {White wants to play Bxf6.} Nbd7 8. e3 {The position is equal.} b5 {[#]} 9. Rd1 $146 ({Predecessor:} 9. Qc2 h6 10. Bh4 Be7 11. Bd3 O-O 12. O-O Rc8 13. a4 c6 14. axb5 cxb5 15. Qb3 {0-1 (46) Sarana,A (2636)-Maghsoodloo,P (2671) chess.com INT 2019}) 9... c5 10. Bxf6 Qxf6 11. Nxd5 Qd8 12. e4 $36 {[%mdl 2048] White is more active.} c4 13. Qe3 Bxd5 14. exd5+ Qe7 15. Ne5 $1 f6 {[#]} 16. d6 $1 {[%cal Rd6e7][%mdl 512]} Qe6 {[#]} (16... Qxd6 17. Ng6+) 17. Nxc4 $1 Kf7 18. Qxe6+ Kxe6 19. Ne3 g6 20. Be2 Bg7 21. Bf3 Rac8 22. Ke2 Kxd6 23. Rc1 f5 24. Kd3 Rhd8 25. Rhe1 Nf8 26. Bb7 Rb8 (26... Rxc1 $14 27. Rxc1 Ne6) 27. Bd5 $18 {Rc6+ is the strong threat.} ({Not} 27. Bxa6 Ne6 $15) 27... Rbc8 28. Bb7 ({Better is} 28. Rxc8 $18 Rxc8 29. Bb3) 28... Rb8 $1 $16 {[%cal Rb8b7] [#]} 29. Bd5 ({But not} 29. Bxa6 Ne6 $15) (29. Rc5 $1 $16) 29... Rbc8 $18 30. g3 Nd7 31. Bb7 Rxc1 32. Rxc1 Nb8 33. b4 (33. Bd5 $142) 33... Rd7 $16 34. Bd5 {And now Rc8 would win.} Rc7 35. Rxc7 Kxc7 {[%mdl 4096] Endgame KBN-KBN} 36. Bg8 Nc6 37. a3 h6 38. Bf7 Bxd4 {White is slightly better.} 39. Bxg6 Bb2 40. Kc2 Bxa3 41. Kb3 Bc1 42. Nxf5 Bd2 43. Be8 {Blacks defense is rewarded with a draw. Accuracy: White = 65%, Black = 71%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.28"]
[Round "3.3"]
[White "Studer, Noel"]
[Black "Diermair, Andreas"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2546"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,88,16,10,12,7,10,0,0,0,8,0,12,0,0,-22,0,0,0,-15,0,-6,0,0,0,0,0,0,0,-24,-24,-81,-74,-106,-106,-106,-106,-102,-98,-67,0,-11,0,-7,0,-123,-109,-132,-132,-237,-232,-241,-42,-52,-44,-46,-43,-45,-48,-34,-36,-56,-43,-43,-50,-48,-44,-81,-89,-94,-100,-396,-396,-396,-367,-270,-233]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 d5 6. Bg2 Be7 7. O-O O-O 8. Ne5 c5 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations.} 9. dxc5 Qc7 10. cxd5 exd5 {The position is equal.} 11. Ndf3 {With the idea Bf4.} bxc5 {[#]} 12. Bf4 $146 {Hoping for Nxf7.} ({Predecessor:} 12. b4 Nc6 13. Bf4 Nxe5 14. Bxe5 Qb6 15. bxc5 Bxc5 16. Bd4 Rfc8 17. Re1 Ne4 18. e3 Rab8 19. h4 h6 20. a4 Bxd4 21. Nxd4 {½-½ (21) Cubides,A (2268)-Graterol,S (2204) ICCF email 2018}) 12... Bd6 13. Rc1 Re8 {[%cal Rd6e5]} ({Don't play} 13... g5 $6 14. Bxg5 Bxe5 15. Nxe5 $16) 14. b4 Nbd7 {[%cal Rd6e5]} 15. Nd3 $1 c4 16. Bxd6 Qxd6 17. Nf4 Qxb4 18. Nxd5 Nxd5 19. Qxd5 Nf6 $36 {[%mdl 2048] White is under pressure.} 20. Qc6 Qa3 21. Rfd1 Rad8 22. Qc7 {[#]} (22. e3 $11) 22... Rd7 $1 $17 {[%cal Rd7c7][%mdl 512]} 23. Qf4 (23. Rxd7 Qxc1+) 23... Rxd1+ 24. Rxd1 c3 {aiming for ...c2.} 25. Nd4 Qb2 $1 26. Bc6 Rd8 (26... Rf8 $15 27. Qe3 h6) 27. Qc7 Rf8 28. Bf3 h6 {...Rc8 is the strong threat.} 29. Qc6 (29. Kg2 $11 {keeps the balance.}) 29... Rd8 30. e3 Qa3 31. Kg2 (31. h3 $17 {was worth a try.}) 31... Rc8 $19 32. Nc2 Qxa2 $2 (32... Rxc6 $19 33. Nxa3 c2) 33. Nb4 $1 $15 Rxc6 34. Nxa2 Rc5 {White must now prevent ...c2.} 35. Rc1 $1 c2 {And now ...Bc4 would win.} 36. Nb4 {[%mdl 64] Double Attack} Bb5 37. Rxc2 Rxc2 38. Nxc2 {[%mdl 4096] Endgame KBN-KBN} a5 39. Na3 Bd3 40. Bc6 Kf8 41. f3 Ke7 42. Nb5 $2 {[%mdl 8192] [#]} (42. Kf2 $17) 42... Bxb5 $1 $19 {[%mdl 64] Overworked Piece} 43. Bxb5 {[#]} Nd5 $1 {[%cal Rd5c3]} 44. e4 Nc3 {Accuracy: White = 76%, Black = 89%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.28"]
[Round "3.4"]
[White "Gaehwiler, Gabriel"]
[Black "Brunello, Sabino"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2407"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,106,12,4,37,0,0,0,0,-29,-56,-45,17,-45,-66,-106,-101,-95,-103,-115,-97,-109,-102,-110,-102,-102,-72,-66,-61,-63,-50,-62,-59,-75,-25,-124,83,10,9,18,177,28,147,124,133,143,147,139,183,183,185,183,192,177,186,191,188,187,187,180,186,177,189,190,181,135,135,114,124,116,113,65,65,65,65,65,65,66,66,65,65,65,66,60,64,64,66,58,64,0,47,0,64,0,60,0,64]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Nd2 O-O 6. Ngf3 dxc4 7. Qc2 Nbd7 {E04: Open Catalan: 5 Nf3.} 8. O-O b5 9. a4 c6 {[#]} 10. Ng5 $146 ({Predecessor:} 10. b3 Bb7 11. bxc4 bxc4 12. Ne5 Nxe5 13. dxe5 Nd5 14. Nxc4 Ba6 15. Ba3 Bxa3 16. Rxa3 {1-0 (45) Galopoulos,N (2371)-Kozyris,I (1453) Heraklion 2017}) 10... Rb8 11. Bxc6 h6 (11... a6 $1 $15) 12. Ngf3 ({Better is} 12. axb5 $11 hxg5 13. Nxc4) 12... a6 $1 $15 13. Nb1 Qb6 $1 {[%cal Rb6c6]} 14. axb5 axb5 15. Bxd7 Bxd7 (15... Nxd7 16. Bf4 $15) 16. Nc3 Bc6 17. Ne5 Ba8 18. Be3 Rfd8 ({Reject} 18... Qb7 $6 19. f3 $15) 19. Rfd1 Qb7 {[%csl Ga8][%cal Rb7h1]} 20. f3 Bf8 21. Bf2 Qc7 22. Ra6 b4 23. Na4 (23. Nb1 $1 $11) 23... Qb7 $2 {[#]} (23... Bb7 $17 {and life is bright.} 24. Ra7 Be4 25. fxe4 Qxa7) 24. Qxc4 ({White should try} 24. Rb6 $1 $16 {[%cal Rb6b7]} Qa7 25. Rxb8 (25. Nxc4 b3 $11) 25... Qxb8 26. Qxc4 (26. Nxc4 b3 $16)) 24... Rbc8 $11 25. Qd3 Nd5 $2 (25... Bd6 $11 26. Ra5 Qc7) 26. Nc5 (26. e4 $18) 26... Qc7 (26... Bxc5 $1 $11 27. dxc5 Qc7) 27. Qb5 Rb8 {[#]} 28. Qa5 $1 Qxa5 29. Rxa5 b3 30. Ned7 Rbc8 31. Nxf8 Kxf8 32. Rd3 Nb4 33. Rxb3 Nc6 34. Ra4 e5 35. dxe5 Nxe5 36. Rd4 Re8 37. Rc3 Kg8 38. Nd3 {And now Nxe5 would win.} Nc6 39. Rdc4 Rxe2 40. b4 {Hoping for b5.} Rd8 41. Nf4 Rb2 {Strongly threatening ...Ne5.} 42. Rxc6 Bxc6 43. Rxc6 Rd1+ 44. Kg2 Rdd2 45. Nh3 Rxb4 46. g4 f6 47. Rc8+ Kh7 48. Kg3 {aiming for Be1.} Rbb2 49. Rc7 Kg8 50. Rc8+ ({White should play} 50. Rc3 $14) 50... Kf7 51. Rc7+ Kg8 52. Rc8+ Kf7 53. Rc7+ Kg8 {Black escapes into a draw. Accuracy: White = 68%, Black = 68%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.28"]
[Round "3.5"]
[White "Stijve, Theo"]
[Black "Albornoz Cabrera, Daniel Carlos"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2249"]
[BlackElo "2566"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,81,14,0,20,21,56,23,29,0,13,13,16,0,18,-28,-23,-39,-16,-69,-63,-98,-98,-102,-104,-107,-94,-122,-112,-281,-270,-268,-256,-248,-261,-264,-257,-238,-214,-428,-378,-356,-339,-454,-453,-441,-427,-678,-675,-1166,-1166,-1166,-739,-1133,-940,-4710,-2220,-29986,-6299,-29969,-29970,-29962,-29968,-29956,-29973,-6087]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Qd2 Nbd7 10. O-O-O Qc7 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 11. Kb1 Rc8 12. g3 Be7 {White has an edge.} 13. Nd5 Nxd5 14. exd5 Bf5 {[%cal Rf5c2] [#]} 15. Rc1 $146 ({Predecessor:} 15. Bd3 Bxd3 16. Qxd3 Qc4 17. Qd2 O-O 18. Rhg1 f5 19. h3 Bf6 20. Na5 Qc7 21. Rc1 {1-0 (55) Karjakin,S (2760)-Gelfand,B (2741) Moscow 2010}) 15... O-O 16. Be2 Nb6 17. Na5 Bd8 18. Rhd1 {[#]} (18. Bd3 $11 Bd7 19. Be2) 18... Nxd5 $1 $15 {[%mdl 576] Discovered Attack} 19. Qxd5 {aiming for Nb3.} Bxc2+ {[%mdl 64] Double Attack} ({Much weaker is} 19... Qxa5 $6 20. Qxb7 Qa4 21. Bd3 $14) 20. Ka1 Qxa5 21. Qxa5 Bxa5 22. Rxd6 Bf5 {Hoping for ...Rxc1+.} 23. f4 $2 {Now White is beyond hope.} (23. Rdd1 $17) 23... exf4 24. Bxf4 {[#]} Bc7 $1 {[%cal Rc7d6]} 25. Rdd1 Bxf4 26. gxf4 g6 27. Bf3 Bg4 28. Bxg4 $2 (28. Bxb7 Rb8 29. Bxa6 Bxd1 30. Rxd1) 28... hxg4 29. Kb1 Rxc1+ 30. Rxc1 $19 {[%mdl 4096] Endgame KR-KR} f5 31. h3 {Now Rg1 and White clings on.} Kg7 32. hxg4 (32. Rc7+ $142 Rf7 33. Rc2) 32... fxg4 33. Rf1 Kf6 34. Kc2 Rd8 35. Rh1 Kf5 36. Rh7 g3 {( -> ...g2)} 37. Rf7+ Kg4 (37... Ke6 $142 38. Rc7 g2 39. Kb3 g1=Q 40. Rc4 Qd1+ 41. Kb4 Qd6+ 42. Kb3 b5 43. Re4+ Kf5 44. Re5+ Kxf4 45. Re2 Qd4 46. Rf2+ Kg3 47. Rg2+ Kxg2 48. Kc2 Qd3+ 49. Kc1 Qd1#) 38. Rg7 Rd6 {Black mates.} 39. Re7 g2 40. Re5 Kxf4 41. Re1 {Accuracy: White = 32%, Black = 80%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.29"]
[Round "4.1"]
[White "Donchenko, Alexander"]
[Black "Colmenares, Aurelio"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2650"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,67,0,10,0,0,0,0,7,22,12,27,19,22,27,37,29,39,0,27,28,63,29,50,0,59,5,95,81,115,104,112,118,131,118,114,108,129,119,127,90,225,222,250,249,239,246,239,231,346,356,427,399]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Qb3 e6 9. Bb5 Bg7 10. O-O {A35: Symmetrical English: 2 Nc3 Nc6 3 Nf3.} O-O 11. Bxc6 bxc6 12. Ne4 {[#] The position is equal. 12.Re1 is a critical line.} a5 $146 ({Predecessor:} 12... Qb6 13. Rd1 Ba6 14. Ne5 Rad8 15. Be3 Nxe3 16. fxe3 c5 17. Nxc5 Bxe5 18. Qxb6 axb6 19. Nxa6 {½-½ (48) Sargissian,G (2668)-Sutovsky,E (2623) Tsaghkadzor 2015}) 13. Bd2 a4 14. Qc2 Ba6 15. Rfe1 Bb5 16. h4 Qe7 17. a3 (17. h5 $5) 17... Rfb8 {[#]} 18. h5 $1 {[%mdl 512]} Ra7 (18... gxh5 19. Neg5) 19. hxg6 hxg6 20. Ne5 Qd8 (20... Qh4 $11) 21. Rad1 ({White should try} 21. g3 $14) 21... Qe8 (21... Qh4 $11) 22. Nc5 Ne7 23. Qc3 Rd8 24. Ne4 f6 25. Ng4 $1 {[%cal Rg4f6]} Nd5 {[#]} 26. Qh3 $1 Re7 {With the idea ...f5.} 27. Bb4 $36 {[%mdl 2048] White is on the roll.} Red7 28. Nc5 Nf4 {[#] A mistake that costs the game.} (28... Re7 $16 {was necessary.}) 29. Qf3 $1 $18 {[%cal Rf3f4]} Rxd4 30. Rxd4 Rxd4 31. Bc3 Qd8 32. Nb7 ({Don't do} 32. Bxd4 $6 Qxd4 33. Rd1 (33. Nxe6 Qd2 $14) 33... Qxc5 $16) 32... Qd5 (32... Be2 $142) 33. Bxd4 Ne2+ 34. Rxe2 {Accuracy: White = 84%, Black = 46%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.29"]
[Round "4.2"]
[White "Diermair, Andreas"]
[Black "Baenziger, Fabian"]
[Result "1/2-1/2"]
[ECO "D77"]
[WhiteElo "2483"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,63,52,13,22,22,50,60,37,44,60,52,65,58,58,60,60,62,70,72,80,81,86,16,32,29,25,0,0,0,0,0,0,0,60,61,47,0,0,0,0,0,14,0,0,0]} 1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 O-O 6. O-O dxc4 7. Na3 Nc6 8. Nxc4 Be6 9. b3 Bd5 10. Bb2 a5 11. Ne3 {[#]} e6 $146 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6.} ({Predecessor:} 11... Be4 12. a3 Qc8 13. Nc4 Rd8 14. e3 Bd5 15. Rc1 Ne4 16. Qe2 Qe6 17. Ne1 Ng5 18. Nf3 Qg4 19. Ncd2 Nxf3+ 20. Bxf3 Bxf3 21. Qxf3 Qxf3 22. Nxf3 {½-½ (44) Rozum,I (2573)-Sjugirov,S (2654) Khanty-Mansiysk 2018}) 12. a3 a4 13. Nxd5 exd5 {White is slightly better.} 14. Ne5 Nxe5 15. dxe5 Ng4 16. bxa4 Nxe5 17. Bxd5 c6 18. Bg2 Qa5 19. Rb1 Rfd8 20. Qc1 Rab8 21. Qc3 (21. Kh1 $16) 21... Qxa4 $11 22. Rfc1 Rd7 23. Qc2 (23. Ba1 {feels hotter.} Rbd8 24. Bf1 Qa7 25. Qb4 h5 26. h3) 23... Qxc2 24. Rxc2 Rbd8 25. Rcc1 h5 26. a4 Rd2 (26... Ra8 $11) 27. Bxe5 $1 $14 Bxe5 28. Bf3 Bb2 {The position is equal.} 29. Rc4 Rd1+ 30. Rxd1 Rxd1+ 31. Kg2 {With the idea Rb4.} Rd4 32. Rxd4 {Accuracy: White = 81%, Black = 89%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.29"]
[Round "4.3"]
[White "Brunello, Sabino"]
[Black "Studer, Noel"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2528"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,74,19,6,5,11,12,0,12,13,11,11,8,12,11,0,35,20,39,39,50,43,58,37,46,37,56,41,43,45,50,51,50,0,4,-12,-6,-70,0,0,0,-5,-5,-23,-13,-13,0,-107,-27,-29,-8,-436,-441,-860,-657,-5261,-2800]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 12. Nc2 O-O 13. g3 Bg5 {The position is equal.} 14. h4 Bh6 15. Bh3 Be6 16. Kf1 Rb8 17. Qd3 Qd7 18. Kg2 {[#]} f5 $146 ({Predecessor:} 18... Ne7 19. Nxe7+ Qxe7 20. Rad1 Rfd8 21. b3 Qa7 22. Qf3 a5 23. Ne1 Qe7 24. Nd3 Rf8 {1-0 (37) Olszewski,M (2558)-Klekowski,M (2392) Trzcianka 2014}) 19. exf5 Bxf5 20. Bxf5 Rxf5 21. Qe4 Rf7 22. b3 a5 23. Rad1 Rbf8 24. Rhf1 Nd8 {[%cal Bc6d8,Bd8e6,Be6c5][%mdl 32]} 25. Nce3 Ne6 26. Nb6 Qd8 $132 {[%mdl 2048] [#] White must now prevent ...Bxe3. Black has counterplay} 27. Nbd5 Nc5 28. Qc2 (28. Qg4 $11) 28... Qd7 (28... Bxe3 $1 $15 29. fxe3 Qd7) 29. f3 $11 g6 30. Ng4 Bg7 31. Qd2 {Black should prevent Nb6.} e4 {[%cal Re4f3]} 32. Nh2 $1 a4 33. bxa4 (33. Qc2 $1 $11 {remains equal.}) 33... exf3+ ({Of course not} 33... Nxa4 $6 34. fxe4 Nc3 35. Rxf7 $11) (33... Qxa4 $17 {Strongly threatening ...b3.} 34. f4 b3 35. axb3 Qxb3) 34. Nxf3 Qg4 35. Ng5 $2 {[%mdl 8192] [#]} (35. Ne3 $1 $11 {and White has nothing to worry.} Qe4 36. Qd5) 35... Ne4 $1 $19 {[%mdl 512] Black is clearly winning.} 36. Qe3 (36. Nxf7 $142 Qxg3+ 37. Kh1 Rxf7 38. Qh2) 36... Rf2+ {[%mdl 64] Double Attack} 37. Kg1 Nxg5 {Accuracy: White = 61%, Black = 84%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.29"]
[Round "4.4"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Gaehwiler, Gabriel"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2566"]
[BlackElo "2407"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,62,42,43,0,0,0,0,0,0,2,0,-17,-18,-31,-14,-21,0,0,0,0,0,-11,-13,-12,-6,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4 Nb4 9. Be2 dxc4 10. Bxc4 O-O 11. Re1 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nd6 12. Bb3 Bf6 13. Nc3 Bg4 14. Be3 {[#]} Nc6 $146 ({Predecessor:} 14... Re8 15. h3 Bh5 16. a3 Nc6 17. g4 Bg6 18. Ba4 Nc4 19. Bxc6 bxc6 20. b3 Nb6 {0-1 (37) Szabo,B (1758)-Hoang,T (2042) Budapest 2004}) 15. Bd5 Nf5 16. Bxc6 bxc6 17. h3 {The position is equal.} Bxf3 (17... Nxe3 {is interesting.} 18. fxe3 Bh5 19. g4 Bg6 20. Qd2 c5) 18. Qxf3 {[%mdl 64] [#] Double Attack} Nxd4 19. Bxd4 Qxd4 20. Qxc6 Qb6 21. Qxb6 axb6 22. Rac1 Bxc3 23. Rxc3 Rxa2 24. Rxc7 Rxb2 $11 {[%mdl 4096] Endgame KRR-KRR} 25. Rb7 h6 26. Ree7 b5 27. g3 Rb1+ 28. Kg2 Rb2 29. Re5 b4 30. Reb5 b3 31. Rxb3 Rxb3 {An uneventful encounter. Accuracy: White = 93%, Black = 100%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.02.29"]
[Round "4.5"]
[White "Petrov, Nikita"]
[Black "Stijve, Theo"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "2592"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,83,18,19,46,34,38,39,38,37,80,73,101,101,95,95,102,64,76,81,95,92,156,162,208,205,233,233,270,283,279,290,272,288,281,273,281,279,270,276,333,333,351,342,275,195,364,375,375,375,487,502,501,501,501,501,500,499,489,438,914,875,29984,29982,29973,5899]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be3 a6 7. Be2 Nf6 8. O-O Bb4 9. Nxc6 bxc6 {[%cal Bb7c6,Bc6c5][%mdl 32]} 10. Qd4 c5 11. Qc4 Bb7 {B49: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 7 Be2.} 12. a3 Bxc3 13. Qxc3 Bxe4 {White is slightly better.} 14. f3 Bb7 15. Qxc5 (15. Bxc5 $6 Nd5 $11) 15... Rc8 16. Qxc7 Rxc7 17. c4 d5 {[#]} 18. Bf4 $146 ({Predecessor:} 18. Rfc1 O-O 19. cxd5 Rxc1+ 20. Rxc1 Nxd5 21. Bc5 Rd8 22. g3 g5 23. b4 f5 24. Rd1 {½-½ (44) Carpenter,M (2103)-Whitfield,C (2095) England 2017}) 18... Rc8 19. b3 {[%cal Bb2b3,Bb3b4,Bb4b5][%mdl 32]} Ke7 20. Rfc1 Rhd8 ({Black should play} 20... dxc4 21. bxc4 Bc6) 21. c5 $16 Ne8 22. b4 f6 23. a4 e5 24. Bd2 Nc7 25. b5 Ne6 {intending ...Nd4.} 26. c6 ({Don't play} 26. bxa6 $6 Bc6 $16) 26... Ba8 27. Rab1 Nd4 28. Bd3 e4 29. Re1 Kf7 30. fxe4 dxe4 31. Bc4+ ({Don't do} 31. Rxe4 Nf3+ 32. gxf3 Rxd3 $18) 31... Kg6 32. Bf4 {c7 is the strong threat.} Re8 $2 {[#]} (32... axb5 33. axb5 Bxc6) 33. Re3 $18 axb5 34. axb5 Kf5 35. Rf1 Nf3+ 36. gxf3 Kxf4 37. Rxe4+ Rxe4 38. fxe4+ {KRB-KRB} Ke5 39. Bd5 Kd4 (39... Kd6 $142 40. Kf2 f5) 40. Rc1 f5 41. c7 fxe4 42. Bxa8 {Black did not feel at home in the position after the opening. Accuracy: White = 91%, Black = 47%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.01"]
[Round "5.1"]
[White "Colmenares, Aurelio"]
[Black "Diermair, Andreas"]
[Result "1-0"]
[ECO "C92"]
[WhiteElo "2302"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 35,71,0,23,8,14,0,0,0,0,0,101,32,41,61,188,188,380,390,577,582,730,727,29978,29972,29984,29983,29985,29986,29986,29986,29989,29990,29990,5522,29991,29992,29992,29991]} 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 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a4 h6 13. Bc2 exd4 14. cxd4 Nb4 15. Bb1 c5 16. d5 Nd7 17. Ra3 c4 18. Nd4 Qf6 19. N2f3 {C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations.} Nc5 20. axb5 (20. b3 {is interesting.} Nbd3 21. Bxd3 Nxd3 22. Re3 Qg6 23. axb5 axb5 24. Nxb5 Nf4 25. Ne1) 20... axb5 21. Nxb5 {The position is equal.} Rxa3 22. Nxa3 Ncd3 {[#]} (22... Ba6 $11 {remains equal.}) 23. Nxc4 $146 (23. Re3 $1 $16) ({Predecessor:} 23. Re3 Ba6 24. b3 Nxc1 25. Qxc1 Nd3 26. Bxd3 cxd3 27. Nc4 Ra8 28. Rxd3 Bxc4 29. Qxc4 {1-0 (48) Wallace,P (2242)-Fox,A (2129) Dublin 2010}) 23... Nxe1 $14 24. Nxe1 Ba6 {[#] A mistake that costs the game.} (24... Na6 $14) 25. Nb6 $1 $18 {aiming for Qa4.} Bb7 $2 (25... Na2) 26. Qa4 $1 {[%csl LRb4,LRe8][%mdl 64] Double Attack} Qd4 (26... Nxd5 $142 27. Nxd5 (27. Qxe8 Nxb6 28. Qb5 Qd4 $16) 27... Qd8) 27. Be3 Qxb2 {...Ra8! is the strong threat.} 28. Qxe8 {Black must now prevent Nd7.} Qxb1 29. Nd7 Qxe1+ 30. Kh2 Qc3 31. Qxf8+ {[%mdl 64] Double Attack} Kh7 32. Qxf7 Bc8 33. Nf8+ Kh8 34. Ng6+ Kh7 35. Ne7 {[%csl Ge7][%cal Rf7g8]} Qe5+ 36. Bf4 {Accuracy: White = 90%, Black = 46%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.01"]
[Round "5.2"]
[White "Baenziger, Fabian"]
[Black "Brunello, Sabino"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2415"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,82,23,15,27,33,31,26,29,18,13,0,0,0,0,-16,5,-40,-30,-42,-39,-42,-39,-39,-47,-55,-48,-49,-48,-33,-42,-16,-26,-35,-24,-101,-110,-104,-104,-94,-101,-141,-96,-86,-56,-56,-58,-124,-74,-79,-75,-75,-43,-54,-35,-131,-131,-208,-188,-679,-678,-674,-651,-2358,-1464,-5089,-4470,-1842,-1596,-2247,-2191]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d5 6. Bg2 c6 7. Qc2 O-O 8. O-O b6 {E11: Bogo-Indian.} 9. Bf4 Be7 10. cxd5 Nxd5 {White has an edge.} 11. Bxb8 Rxb8 12. Qxc6 Ba6 {[#] Strongly threatening ...Rc8.} 13. Qc2 $1 Rc8 $36 {[%mdl 2048] Black is more active.} 14. Qd1 Qc7 {[#]} 15. Nbd2 $146 ({Predecessor:} 15. Ne5 Rfd8 16. Bxd5 Rxd5 17. Nc3 Rdd8 18. Re1 Ba3 19. Nb5 Bxb5 20. bxa3 Qc3 21. Qb1 Qxd4 22. Qxb5 {1-0 (73) Postny,E (2673)-Anurag,M (2421) Stockholm 2016}) 15... Qc2 16. Qxc2 Rxc2 17. Rfc1 Rfc8 18. Rxc2 Rxc2 19. Bf1 Bb4 20. e4 Bxf1 21. Nxf1 Nf6 22. Ne3 Rxb2 23. Rc1 h6 24. e5 (24. Rc8+ $11 {keeps the balance.} Kh7 25. e5) 24... Ne4 $17 25. Rc2 Rxc2 26. Nxc2 {[%mdl 4096] Endgame KBN-KNN} Be7 27. Kf1 Kf8 28. a3 Nc3 29. Nd2 $1 a4 30. f4 (30. f3 $15) 30... Ke8 31. Kf2 b5 32. Ke3 Kd7 33. Kd3 $1 {[%cal Rd3c3]} Nd5 34. Nb1 (34. Ne4 $1 $15) 34... b4 35. axb4 (35. Ke4 $17) 35... Nxb4+ $19 36. Kc3 $2 {[#]} (36. Nxb4 Bxb4 37. Kc4) 36... Nxc2 {Black is clearly winning.} 37. Kxc2 Bb4 38. g4 Kc6 39. f5 Kd5 40. h4 Kxd4 41. g5 hxg5 {Accuracy: White = 54%, Black = 85%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.01"]
[Round "5.3"]
[White "Studer, Noel"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1-0"]
[ECO "E51"]
[WhiteElo "2546"]
[BlackElo "2566"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,0,0,0,0,-3,0,12,9,7,4,0,8,9,0,0,42,29,65,43,37,44,37,58,25,-13,-4,-40,-54,-52,-81,-94,0,0,21,15,50,51,39,45,39,35,25,-41,-40,-27,-18,-57,-7,-37,-42,-35,-35,-28,0,0,0,0,192,168,354,312,450,450,12845,12845]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd2 b6 7. cxd5 exd5 8. Rc1 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} Be7 9. Bd3 Bb7 10. O-O {The position is equal.} c5 11. Ne5 Nc6 12. Be1 Rc8 {[#]} 13. Bf5 $146 ({Predecessor:} 13. f3 g6 14. Bf2 cxd4 15. Nxc6 Bxc6 16. exd4 Nh5 17. Ba6 Rb8 18. Nb5 Bb7 19. Bxb7 Rxb7 {½-½ (31) Ruokokoski,H (2185)-Schreiber,E (2358) ICCF email 2015}) 13... Ra8 14. f4 a6 (14... g6 $5 {[%cal Rg6f5]} 15. Bd3 cxd4 16. Nxc6 Bxc6 $11) 15. Bh4 g6 16. Bd3 (16. Bh3 {seems wilder.} cxd4 17. exd4 Qd6 18. a3 Bd8 19. Bg5) 16... cxd4 17. Nxc6 Bxc6 18. exd4 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 19. Re1 Qd6 20. Re5 Bd8 21. Bg5 b4 22. Ne2 Bb6 ({Black should play} 22... Ng4 $17 23. Bxd8 Raxd8) 23. Qe1 $11 Ng4 {aiming for ...f6.} 24. Qh4 {Black must now prevent Be7.} f6 25. Qxg4 (25. Rxc6 $2 Qxc6 26. Re7 Bxd4+ 27. Kf1 (27. Nxd4 $2 Qc1+ {[%mdl 64] Double Attack} 28. Bf1 h5 $19) 27... Ne3+ 28. Kf2 Nf5+ 29. Nxd4 Nxh4 $19) 25... fxe5 26. fxe5 Bd7 {Threatens to win with ...Qxe5.} 27. Qg3 Qe6 28. Bf6 (28. Bh6 $11) 28... Rxf6 $15 29. exf6 Qxf6 30. Kh1 Bxd4 31. Nxd4 (31. Qc7 $5 {[%cal Rc7d7]} Bb5 32. Bxb5 axb5 33. Nxd4 Qxd4 34. Rf1 $11) 31... Qxd4 32. h3 Rf8 (32... Qxb2 33. Rc7 $18) 33. Rc7 Rf7 34. Bxa6 Qxb2 35. Qd6 Qxa2 $2 {[#]} (35... Qb1+ $11 {and Black is okay.} 36. Kh2 Qf5) 36. Bb7 $1 $36 {[%cal Rb7d5][%mdl 2048] [#] White is in control.} Qa1+ $2 (36... Bxh3 $1 {[%mdl 512] was worth a try.} 37. Qd8+ (37. Bxd5 Bxg2+ 38. Bxg2 Qa1+ 39. Kh2 Rxc7 $11) (37. gxh3 Rf1#) 37... Rf8 38. Bxd5+ {[%mdl 64] Double Attack} Be6 39. Bxa2 Rxd8 40. Bxe6+ Kh8) 37. Kh2 Qd4 (37... Qf6 {might work better.} 38. Qxf6 Rxf6) 38. Bxd5 ({Stronger than} 38. Rxd7 Rxd7 39. Qxd7 Qe5+ 40. Kh1 Qe1+ 41. Kh2 Qe5+ 42. g3 Qe2+ 43. Kh1 Qe1+ 44. Kh2 Qf2+ 45. Kh1 Qe1+ 46. Kh2 Qf2+ 47. Kh1 Qe1+ $11) 38... Be6 (38... Kh8 $142 39. Rxd7 Qf4+ 40. Qxf4 Rxf4) 39. Rxf7 {Accuracy: White = 82%, Black = 58%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.01"]
[Round "5.4"]
[White "Gaehwiler, Gabriel"]
[Black "Petrov, Nikita"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2407"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,62,14,0,0,0,0,0,0,0,4,-4,13,-27,-18,-18,0,-9,0,0,0,-56,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,0,0,0,-9,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Nd2 O-O 6. Ngf3 b6 7. O-O Bb7 8. Ne5 a5 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} 9. Qc2 c5 10. cxd5 Bxd5 11. e4 Bb7 12. dxc5 {[#]} Bxc5 $146 ({Predecessor:} 12... Qc8 13. Nd3 Bxd2 14. Bxd2 Nxe4 15. Be3 Nd7 16. c6 Bxc6 17. Rfc1 Nec5 18. Nxc5 Nxc5 19. Bxc5 bxc5 20. Qxc5 Bxg2 21. Qxc8 Rfxc8 22. Kxg2 Kf8 23. Rab1 Ke7 {½-½ (23) Mason,I (2286)-James,A (2334) ICCF email 2017}) 13. Ndc4 Qc7 {Threatens to win with ...b5.} 14. Nd3 {Bf4 is the strong threat.} Bxe4 (14... Bd6 {with more complications.} 15. e5 Bxg2 16. Kxg2 Bxe5 17. Ndxe5 b5) 15. Bxe4 Nxe4 16. Nxc5 Nxc5 17. Be3 (17. Rd1 $11) 17... Nbd7 (17... Nba6 $15) 18. Rac1 $11 {The position is equal.} Ne5 19. Nxe5 Qxe5 20. Bxc5 bxc5 21. Rfe1 Qf6 22. b3 Rac8 23. Re4 Rfd8 24. Ra4 h5 25. Rxa5 Rd5 26. Ra4 Rcd8 {[#] Hoping for ...Qf3.} 27. Rf4 Qe5 28. Re4 Qf5 {aiming for ...Rd2.} 29. Rf4 Qe5 30. Re4 Qf5 {[#] Strongly threatening ...Rd2.} 31. Rf4 Qe5 {A rather calm draw. Accuracy: White = 90%, Black = 94%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.01"]
[Round "5.5"]
[White "Stijve, Theo"]
[Black "Donchenko, Alexander"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2249"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,82,0,8,-10,9,16,25,7,8,7,12,-8,-4,-10,0,0,0,0,0,0,-10,-122,-89,-96,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,0,0,0,4,0,0,0,0,0,0,0,0,0,0,-29967,-29968,-29968,-29969,-29969,-29937,-29970,-29966]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 Bxd3 6. Qxd3 e6 {6...Qa5+ is the hot move. Played by Jeffery Xiong in February 2020.} 7. Bg5 {B12: Caro-Kann: Advance Variation.} Be7 8. Nf3 c5 {[#]} 9. Nc3 $146 {White has an edge.} ({Predecessor:} 9. dxc5 Nd7 10. b4 Bxg5 11. hxg5 Ne7 12. Nc3 a5 13. Nb5 axb4 14. Nd6+ Kf8 15. Qd4 {½-½ (52) Nepomniachtchi,I (2729)-Laznicka,V (2647) Riadh 2017}) 9... cxd4 10. Nb5 Nc6 11. Nbxd4 Nxd4 12. Qxd4 a6 13. O-O Rc8 14. Rfd1 Bxg5 15. Nxg5 Nh6 16. Ne4 (16. Rac1 $11) 16... Nf5 17. Qb4 Qe7 (17... Rxc2 $17 18. Nd6+ Nxd6 19. exd6 a5 20. Qxb7 O-O) 18. Nd6+ $11 Nxd6 19. exd6 Qd7 20. Rxd5 $1 exd5 21. Re1+ Kf8 22. Re7 Qg4 $1 {[%cal Rg4b4]} 23. d7 {[%csl Gd7][%cal Re7e8] [#]} Qxb4 24. dxc8=Q+ Kxe7 25. Qxh8 Qxb2 26. Qxh5 {[%mdl 4096] Endgame KQ-KQ} Qc1+ 27. Kh2 Qf4+ 28. Kg1 Kd6 29. g3 Qf6 30. Qg4 Kc5 31. a3 a5 32. Qd7 {And now Qc7+ would win.} Kb6 33. Qxd5 Qa1+ 34. Kg2 Qxa3 35. Qxf7 Qc3 36. Qb3+ Qxb3 37. cxb3 Kc5 38. h5 $2 {[%mdl 8192] [#]} (38. Kf3 $11) 38... b5 $1 {Black mates.} ({Not} 38... Kb4 $2 39. g4 $18) 39. g4 Kd6 40. g5 Ke7 41. f4 a4 {Accuracy: White = 85%, Black = 96%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.02"]
[Round "6.1"]
[White "Brunello, Sabino"]
[Black "Colmenares, Aurelio"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2528"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,147,24,46,10,67,60,56,62,75,27,34,35,33,18,14,0,0,3,41,50,79,78,106,93,110,110,125,81,129,130,151,153,173,166,183,183,207,187,190,183,213,205,215,120,114,117,113,100,132,141,154,154,154,147,154,147,153,147,147,147,147,69,69,69,91,75,73,36,36,23,23,23,23,24,24,31,31,22,22,22,22,22,22,22,22,22,22,22,22,22,22,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,52,19,19,8,8,8,8,8,29976,29977,29977,29970,29969,29970,29980,29981,29981,29982,29982,29981]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 O-O 8. Rxb7 Bxb7 9. Bxb7 Nd7 10. Bxa8 Qxa8 11. Nf3 {A16: English Opening: 1...Nf6 with ...d5.} Ne5 (11... Qc6 $11) 12. O-O $14 Nxf3+ 13. exf3 {White is slightly better.} Qd5 14. Qa4 Qxf3 15. Qd7 Bf6 16. Qxc7 h5 {[#]} 17. Re1 $146 ({Predecessor:} 17. h4 Qg4 18. Ba3 Rc8 19. Qb7 Bxh4 20. Bxe7 Bxe7 21. Qxe7 Qa4 22. a3 Re8 23. Qc5 {½-½ (43) Cekro,E (2380)-Lytchak,B (2260) Germany 1999}) 17... h4 18. Qf4 Qxf4 (18... Qd5 {keeps more tension.} 19. gxh4 Rc8 20. Ba3 Rc4 21. d4 Rxc3 22. Bxe7 Bxe7 23. Rxe7 Rd3) 19. gxf4 $11 {[%mdl 4096] Endgame KRB-KRB} h3 20. Kf1 Rd8 21. Re4 a5 22. Ke2 Rb8 23. Kd3 Kf8 24. Re3 Rb1 25. Kc2 $1 {[%cal Rc2b1]} Rb6 26. Rxh3 Ke8 27. d4 Re6 28. Re3 Rb6 29. a4 Kd7 30. Ba3 Rb8 31. Bc5 (31. Rh3 $18) 31... Rh8 $16 32. h3 e6 33. c4 Rh4 34. Rf3 $1 Bd8 {[#]} 35. Ba3 $1 Bc7 36. Bc1 Kc6 37. Bd2 Bb6 38. Rd3 Rh5 39. Be3 {Hoping for d5+!} Bc7 {[#]} 40. Rb3 (40. Bc1 $1 $16) 40... Rxh3 $14 41. Rb5 Rh1 42. d5+ exd5 43. cxd5+ Kd7 $1 44. Rb7 {Black must now prevent Bb6.} Kc8 45. Ra7 Rh5 46. d6 Bxd6 47. Rxf7 Rf5 $1 {[%cal Rf5f7]} 48. Rg7 Bxf4 49. Rxg6 Bxe3 $1 50. fxe3 $11 {KR-KR} Rf2+ $1 51. Kb3 Re2 52. Rc6+ Kd7 53. Rc3 Rd2 54. Kc4 {Threatens to win with Rd3+.} Kc6 $1 55. e4 Rd1 56. Rh3 Rb1 57. Rh6+ Kd7 58. Kd5 Rb4 59. Rh7+ Kd8 60. e5 Ke8 61. Ke6 {[%cal Rh7h8]} Rb6+ 62. Kf5 {Ra7 is the strong threat.} Rb4 63. Kf6 {aiming for Rh8+.} Rf4+ $1 64. Ke6 {Intending Rh8+ and mate.} Kf8 65. Rh8+ Kg7 66. Ra8 Rxa4 67. Kd7 Rd4+ 68. Ke8 $1 Rd5 $2 {[%mdl 8192] This move loses the game for Black.} (68... Re4 $11) 69. e6 {White mates.} Rh5 70. Kd7 Rd5+ 71. Kc6 Rd1 72. e7 Rc1+ 73. Kb5 Rb1+ 74. Ka4 {Accuracy: White = 88%, Black = 82%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.02"]
[Round "6.2"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Baenziger, Fabian"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2566"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,59,27,27,17,33,34,97,89,87,90,93,81,87,83,95,85,60,99,179,176,163,161,154,159,170,174,203,189,289,282,295,289,309,228,211,203,479,471,594,585,901,881,1012,923,1028,1008,999,971,1145,1000,921,829]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bd3 Ngf6 6. Re1 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} b5 7. a4 Bb7 (7... b4 $14) 8. axb5 $16 {White is better.} axb5 9. Rxa8 Qxa8 10. Bxb5 Bxe4 {[#]} 11. d4 $146 {dxc5 is the strong threat.} ({Predecessor:} 11. Nc3 Bxf3 12. Qxf3 Qxf3 13. gxf3 e6 14. d3 h6 15. Bd2 Kd8 16. Ra1 Kc8 17. Ra7 {1-0 (26) Csonka,B (2466)-Mesaros,F (2439) Radenci 2019}) 11... Bxf3 12. gxf3 {Threatens to win with dxc5.} cxd4 13. Qxd4 e5 {[#]} (13... e6 $16) 14. f4 $1 $18 {[%cal Rf4e5]} e4 15. Nc3 {[%cal Rc3e4]} Be7 16. Nxe4 O-O 17. Nc3 Qd8 18. b4 $36 {[%mdl 2048] White is in control.} Ng4 (18... Nb6 $142 19. Be3 Qc7) 19. Nd5 Bh4 20. Re2 Ndf6 {intending ...Nxd5.} 21. h3 Nxd5 22. hxg4 Nf6 $2 (22... Nc7) 23. g5 {White is clearly winning.} Ng4 24. Bb2 {[%csl Gb2][%cal Rd4g7] [#]} f6 25. f3 Bf2+ 26. Rxf2 Nxf2 27. Kxf2 Kh8 28. Bd3 {aiming for Qe4.} d5 29. c4 dxc4 30. gxf6 {Accuracy: White = 93%, Black = 42%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.02"]
[Round "6.3"]
[White "Petrov, Nikita"]
[Black "Studer, Noel"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2592"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,86,26,29,29,26,20,12,16,21,27,35,58,8,32,-60,-47,-44,-46,-79,-78,-71,-43,-49,-77,-58,-67,-94,-91,-118,-117,-108,-120,-114,-121,-112,-123,-133,-118,-121,-94,-163,-155,-148,-154,-203,-203,-203,-202,-202,-195,-202,-187,-185,-98,-98,-98,-89,-97,-109,-93,-616,-605,-600,-592,-633,-626,-29992,-29993,-29993,-29994,-29994,-29988]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 10. O-O b6 {now supersedes 10...Qe7.} 11. Nh2 Nf8 {The position is equal.} 12. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Ne6 13. a5 {[#]} Ba6 $146 ({Predecessor:} 13... Rb8 14. Ne2 Rb7 15. axb6 axb6 16. Ra8 Nc7 17. Ra4 Ne6 18. Rfa1 h5 19. Ra7 Qe7 {½-½ (55) Lukas,N (2376)-Gonzaga Grego,L (2403) ICCF email 2018}) 14. b3 f5 15. f3 (15. exf5 $14 gxf5 16. Rfe1) 15... f4 $15 16. Bf2 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 17. Na2 b4 18. Rfd1 Qe7 19. c3 $1 {[%cal Rc3b4]} Rb8 20. Rac1 bxc3 $1 21. Qxc3 {[%cal Rf2c5] [#]} Rb5 $1 22. b4 {[%cal Rf2c5]} O-O 23. bxc5 Rfb8 24. Qe1 Nd4 ({Weaker is} 24... Nxc5 {[#]} 25. Nb4 $1 $14 {[%mdl 512]}) 25. Bxd4 exd4 26. Ng4 h5 ({Don't play} 26... Rxc5 27. Rxc5 Qxc5 28. Rc1 $15) 27. Nf2 Be5 28. Kh2 (28. Rc2 $17) 28... Bc8 $36 {[%mdl 2048] White is under strong pressure.} 29. Rb1 Qxc5 30. Rdc1 Rxb1 31. Rxb1 Rxb1 32. Qxb1 Qxa5 33. Nb4 Bd7 34. Nc2 Qb6 ({Better is} 34... Kg7 $19 35. Qb7 Qc7) 35. Qa2+ $17 Kg7 36. Na3 Bf6 37. Nc4 Be6 38. Qa3 $2 {[%mdl 8192] White does not recover from this.} (38. e5 $17 Bh4 39. Ne4) 38... Bxc4 $1 $19 39. dxc4 Bh4 {( -> ...Bg3+)} 40. Nd1 c5 41. Kg1 {[#] If White can now play Nb2 this consolidates a bit.} Qb1 $1 {Black mates.} 42. Qxa7+ Kh6 43. Qa4 Qc1 {Accuracy: White = 57%, Black = 90%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.02"]
[Round "6.4"]
[White "Donchenko, Alexander"]
[Black "Gaehwiler, Gabriel"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2650"]
[BlackElo "2407"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,53,39,41,31,37,36,44,43,52,47,102,105,119,118,131,137,129,136,138,135,144,133,167,160,174,159,249,254,248,235,241,233,270,273,266,261,369,366,440,435,419,414,409,406]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 g6 5. O-O Bg7 6. d4 O-O 7. Bf4 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6.} Nc6 {[#]} 8. Qc1 $146 ({Predecessor:} 8. Na3 Ne7 9. Rc1 c6 10. Be5 b6 11. Qb3 Bb7 12. Rfd1 Nf5 13. Nd2 Bh6 14. Nc2 Ng4 15. cxd5 exd5 {½-½ (62) Zhang,Z (2634)-Wang,C (2514) China 2016}) 8... dxc4 9. Rd1 {White is slightly better.} Nd5 10. Bg5 Bf6 (10... Nde7 $14) 11. Bxf6 $16 Nxf6 12. Na3 Kg7 13. Nxc4 Qe7 14. a3 a5 15. Qc2 Rd8 16. e4 b5 17. Nce5 Nxe5 18. dxe5 ({Resist} 18. Nxe5 $6 Bb7 $16) 18... Ne8 (18... Rxd1+ $16 19. Rxd1 Ne8) 19. Rxd8 $18 Qxd8 20. Rd1 {[%cal Ba1d1,Bd1d7,Bd7e7][%mdl 32]} Qe7 {[#]} 21. Nd4 $1 Bd7 22. Nc6 Bxc6 23. Qxc6 {[%mdl 64] Double Attack} Rb8 (23... Rd8 $142 24. Rxd8 Qxd8 25. Qxb5 Qa8) 24. Rd7 Rb6 25. Rxe7 Rxc6 26. Rxe8 Rc2 27. b4 {White took control after the opening. Accuracy: White = 100%, Black = 53%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.02"]
[Round "6.5"]
[White "Diermair, Andreas"]
[Black "Stijve, Theo"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2483"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,110,21,18,53,27,21,10,8,0,0,0,18,20,15,25,28,19,24,19,33,-31,0,-17,-20,-22,0,-14,30,-28,0,-41,-42,-84,-69,-71,-77,-75,-72,-78,-66,-71,-71,-71,-69,-76,-77,-76,-56,-49,-60,-102,-54,-48,-47,-117,-14,-38,-8,-8,0,0,0,-22,0,-38,-38,-54,-57,-83,0,-6,0,-20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 O-O 8. Qc2 h6 9. Bh4 c5 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 10. Nge2 c4 11. Bf5 {Black should prevent Bxf6.} Nc6 {[#]} 12. a3 $146 ({Predecessor:} 12. O-O Nb4 13. Qb1 g5 14. Bg3 Bxf5 15. Qxf5 Qc8 16. Qb1 Qd7 17. h3 b5 18. Nc1 {½-½ (45) Meshalkin,Y (2147)-Belchev,B (2190) ICCF email 2018}) 12... Re8 13. O-O a6 (13... Nh5 {looks sharper.} 14. Bxe7 Rxe7 15. Rad1 Nf6 16. Ng3 Re8) 14. Bxc8 Rxc8 15. Bxf6 Bxf6 16. Qf5 Ne7 17. Qf3 Qd7 18. Rad1 (18. a4 $14) 18... Rcd8 19. g3 b5 20. Nf4 Qf5 21. Qg2 g6 22. h4 (22. Nfxd5 $142 $1 Nxd5 23. e4 {[%mdl 64] Double Attack}) 22... Qd7 23. Rd2 a5 24. e4 dxe4 25. Nxe4 Qf5 ({Don't blunder} 25... Bxd4 $2 26. Ne2 $18) 26. Nxf6+ Qxf6 27. Rfd1 Nf5 28. Nd5 Qd6 29. Nc3 b4 30. Nb5 Qb6 31. a4 Nd6 32. Nxd6 Rxd6 33. Qf3 Rf6 34. Qd5 Rc8 35. Rc1 {[#]} ({Better is} 35. Qe4 $15) 35... Rf5 (35... c3 $1 $17 {[%cal Rc3d2]} 36. bxc3 Rxc3) 36. Qe4 (36. Qd7 $5 {[%cal Rd7c8]} Qb8 37. Re2 $11) 36... c3 37. Rdc2 {[%cal Rb2c3]} Qf6 38. bxc3 bxc3 39. Rd1 Rc4 40. Rd3 (40. Qd3 $5 {[%cal Rd3c4]} Rc8 41. d5 $11) 40... Kg7 41. Qe3 Rxa4 42. Rcxc3 Rd5 ({Black should try} 42... Ra1+ $17 43. Kg2 {[#]} Ra2 $1 {[%mdl 512]}) 43. Rc8 {Threatens to win with Qe8.The position is equal.} Ra2 44. Ra3 Qf5 45. Rc5 Rxc5 46. dxc5 $11 {[%mdl 4096] Endgame KQR-KQR} Qb1+ 47. Kh2 {And now Qd4+ would win.} Rxa3 48. Qxa3 {KQ-KQ} Qc2 49. Qa1+ Kg8 50. Qxa5 {Black must now prevent Qd8+.} Qxf2+ 51. Kh3 h5 52. Qd8+ Kg7 53. Qd5 Qf1+ 54. Kh2 Qf2+ 55. Kh3 Qf1+ {Accuracy: White = 76%, Black = 77%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.1"]
[White "Colmenares, Aurelio"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "*"]
[ECO "B23"]
[WhiteElo "2302"]
[BlackElo "2566"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,13,14,16,-15,-22,-18]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 {B23: Closed Sicilian: Lines without g3.} Nc6 7. d3 {[#] A rather calm draw.} {Predecessor:} e6 $146 8. f5 Nf6 9. fxg6 hxg6 10. Bf4 Qb8 11. Nb5 Bf8 12. a4 a6 13. Nc3 Bg7 {½-½ (75) Kadric,D (2585)-Alekseenko,K (2704) Caleta 2020} *

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.1"]
[White "Colmenares, Aurelio"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2302"]
[BlackElo "2566"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,-2,0,-29,-25,-29,-19,-22,12,6,56,37,77,73,76,37,49,27,52,37,52,16,83,83,81,68,95,90,97,76,206,174,193,94,97,102,109,110,97,70,97,76,78,77,87,77,70,70,75,38,50,50,50,50,50,50,45,20,50,8,66,72,110,104,110,83,122,122,286,172,271,125,118,0,0,0,0,-206,-206,-236,-239,-232,-231,-232,-231,-231,-233,-379,-388,-387,-386]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Bc4 {B23: Closed Sicilian: Lines without g3.} Nc6 7. d3 Na5 8. Bd2 {The position is equal.} Nxc4 9. dxc4 Nf6 10. Qe2 {[#]} (10. e5 $5 {[%cal Re5f6]} Nh5 11. Qe2 $11) 10... Bc6 $146 ({Predecessor:} 10... O-O 11. O-O-O a6 12. e5 Ne8 13. h4 Bg4 14. h5 dxe5 15. hxg6 fxg6 16. fxe5 Qd7 {1-0 (46) Perunovic,M (2597)-Santos Ruiz,M (2523) Skopje 2018}) 11. O-O-O Nd7 12. g4 Qb6 13. Rhe1 O-O-O 14. Qd3 Nf6 15. g5 Ne8 (15... Nh5 $1 $11) 16. b3 $16 Nc7 17. f5 Bd7 18. Kb1 Rhe8 19. Ne2 Be5 (19... Qc6 $16) 20. Nxe5 $18 dxe5 {[#]} 21. Qf3 (21. Qh3 $1 $18 {and White stays clearly on top.}) 21... Qc6 $16 22. Qg4 Rg8 23. Ng3 h6 24. h4 f6 25. Qe2 hxg5 26. hxg5 Ne8 27. fxg6 Rxg6 28. Qh5 Rg8 29. g6 Nd6 30. Nf5 Bxf5 31. exf5 Rh8 32. Qg4 Rh2 33. Ba5 b6 34. Rd2 $36 {[%mdl 2048] Black is under pressure.} Rh6 ({Black should play} 34... Rh1 $11 35. Rxh1 Qxh1+ 36. Rd1 Qc6) 35. Bc3 $14 {And now Bxe5! would win.} Qd7 36. Rf1 Rg8 {White should prevent ...Rhxg6.} 37. Qf3 Qb7 38. Rd5 Rh4 $2 (38... Kb8 $16 {was called for.}) 39. Qg3 Rh5 {[#]} (39... Ne4 $142 40. Qd3 (40. Qxh4 Nxc3+ 41. Kb2 Nxd5 $14) 40... Nxc3+ 41. Qxc3 Kc7) 40. Qg4 (40. Bxe5 $1 $18 {[%mdl 512]} Nxf5 (40... fxe5 41. f6) 41. Qf3) 40... Rg5 $16 41. Qh4 (41. Qh3 $16 Qd7 42. Qh7) 41... Nxf5 $11 42. Qh7 R5xg6 {White must now prevent ...Nd6.} 43. Rxf5 $2 (43. Bxe5 $1 $11 {and White is okay.} Ne3 44. Qh3+ {[%mdl 64] Double Attack} Ng4 45. Bc3) 43... e6 $1 $19 {[%csl LRd5,LRf5,LRh7]} 44. Rd8+ Rxd8 45. Qxg6 exf5 46. Qxf5+ Qd7 47. Qxf6 e4 48. Kb2 (48. a4 {was worth a try.}) 48... Re8 49. a4 Qe6 {Accuracy: White = 57%, Black = 63%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.2"]
[White "Baenziger, Fabian"]
[Black "Petrov, Nikita"]
[Result "*"]
[ECO "E10"]
[WhiteElo "2415"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,13,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O {[#]} {Predecessor:} c6 $146 {E11: Bogo-Indian.} 8. Qc2 Nbd7 9. b3 b6 10. Bc3 Bb7 11. Nbd2 Qc7 12. Rfd1 c5 13. Rac1 dxc4 14. Nxc4 b5 15. Ba5 Qb8 16. Nce5 Nxe5 17. dxe5 Nd5 18. Bd2 {0-1 (47) Vidit,S (2721)-Firouzja,A (2726) Prague 2020} *

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.2"]
[White "Baenziger, Fabian"]
[Black "Petrov, Nikita"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2415"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,84,12,16,7,10,0,31,9,16,14,63,64,64,44,69,29,79,7,18,-9,0,0,15,0,9,0,65,65,72,54,99,41,55,56,35,52,56,25,62,61,71,68,95,80,179,175,186,146,129,136,141,132,139,132,148,148,188,76,76,76,76,76,76,76,76,76,76,76,72]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 c6 9. Bf4 Ne4 10. h4 {E08: Closed Catalan: Main Line: 7 Qc2.} h6 11. Nc3 g5 {Strongly threatening ...Nxc3.} 12. Be3 {[#] White is slightly better.} f5 $146 ({Predecessor:} 12... Nd6 13. b3 f5 14. Bc1 gxh4 15. Nxh4 Bxh4 16. gxh4 Kh7 17. f3 Qxh4 18. Ba3 Qxd4+ {0-1 (35) Eljanov,P (2663)-Shtembuliak,E (2600) Lutsk 2019}) 13. Qc1 Bf6 14. hxg5 Nxg5 15. Bf4 Qe7 16. Qe3 Nb6 17. b3 (17. cxd5 $16 exd5 18. Qxe7 Bxe7 19. Ne5) 17... dxc4 $11 18. bxc4 Nxc4 19. Qd3 Nb6 20. Ne5 Qg7 21. e4 $36 {[%mdl 2048] White is pushing.} fxe4 ({Black should try} 21... Nf7 $11) 22. Nxe4 $14 Nxe4 23. Bxe4 Nd5 24. Bd2 (24. Kh2 $16) 24... c5 25. Kg2 {Threatens to win with Rh1.} Bxe5 26. dxe5 {And now Rh1 would win.} Bd7 $1 27. f3 ({Much worse is} 27. Bxd5 $6 Rad8 $11) (27. Rh1 $5 {[%cal Rd2h6]} Nf4+ 28. Bxf4 Rxf4 29. f3 $11) 27... Bc6 28. Rh1 Rad8 29. Qb3 $1 Qxe5 {...Nf6! is the strong threat.} 30. Bxh6 Rf7 {[#]} (30... c4 $16 {keeps fighting.} 31. Qxc4 Qb2+ 32. Kh3 Kf7) 31. Rae1 $1 $18 Qc3 32. Bxd5 Qxb3 33. Bxb3 Bxf3+ 34. Kg1 {Black must now prevent Rh4.} Bxh1 35. Kxh1 Kh7 36. Bf4 ({Much less strong is} 36. Bxe6 $6 Re8 $14) 36... Rd4 {[#]} 37. Bxe6 (37. Be3 $1 $18 {and White stays clearly on top.}) 37... Rfxf4 {White is better.} 38. gxf4 Rxf4 {KRB-KR} 39. Bd5 b5 40. Re7+ Kg6 41. Rxa7 Rd4 42. Bc6 b4 {Accuracy: White = 65%, Black = 71%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.3"]
[White "Studer, Noel"]
[Black "Donchenko, Alexander"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2546"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,73,16,22,22,22,32,31,25,77,54,71,45,44,54,60,43,45,48,40,0,0,0,0,0,5,0,6,6,6,6,6,6,8,0,0,0,0,-7,16,12,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 Be6 9. Bxe6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} fxe6 10. Ng5 Qd7 11. Qf3 {White is slightly better.} h5 $5 {[%mdl 4] [#] Exploring less charted territory.} (11... d5 $11 {keeps the balance.}) 12. Rd1 $146 ({Predecessor:} 12. O-O-O b5 13. b3 Nc6 14. Rd2 Rc8 15. Rhd1 Nd8 16. Bb6 Rc6 17. Bxd8 Bxd8 18. Kb2 {1-0 (32) Laubsch,B (2221)-Gutman,L (2425) Germany 2010}) 12... Nc6 {[%cal Bb8c6,Bc6d8,Bd8f7,Bf7g5][%mdl 32]} 13. O-O {[#] Threatens to win with Na4.} Nd8 14. Qg3 Ng4 15. Bc1 Bxg5 $1 16. Bxg5 Nf7 17. f3 Nxg5 {The position is equal.} 18. fxg4 h4 $1 {[%cal Rh4g3]} 19. Qe3 Nf7 20. g5 O-O 21. g6 Nh8 22. Qg5 Rxf1+ 23. Rxf1 {[#] Black must now prevent Qh5.} Qe8 $1 24. Qxh4 {[%csl Gg6][%cal Rh4h7]} Nxg6 25. Qg4 Rc8 26. Rf3 Rc7 27. Qh5 {Strongly threatening Rg3.} Re7 $1 28. Rd3 Rf7 {And now ...Nf4 would win.} 29. Rxd6 (29. Qxg6 $2 Rf1+ 30. Kxf1 Qxg6 $19) 29... Qe7 30. Qd1 Nf4 $1 31. g3 Qg5 $1 32. Rd2 Nh3+ 33. Kg2 Nf4+ 34. Kh1 Nh3 $1 {[%cal Rh3f2]} 35. Kg2 Nf4+ 36. Kh1 Nh3 $1 {[%cal Rh3f2] aiming for ...Nf2+.} 37. Kg2 {Accuracy: White = 96%, Black = 96%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.3"]
[White "Studer, Noel"]
[Black "Donchenko, Alexander"]
[Result "*"]
[ECO "B90"]
[WhiteElo "2546"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,11,27,22]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 {[#]} {Predecessor:} e5 $146 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 7. Nb3 Be6 8. f3 h5 9. Nd5 Bxd5 10. exd5 Nbd7 11. Qd2 g6 12. O-O-O Nb6 13. c4 Rc8 14. Na5 Nbxd5 15. Bg5 b6 16. Nb7 Qc7 17. Bxf6 Nxf6 18. Nxd6+ Bxd6 19. Qxd6 Qxd6 20. Rxd6 {½-½ (42) Dominguez Perez,L (2758)-Grischuk,A (2777) chess.com INT 2020} *

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.4"]
[White "Gaehwiler, Gabriel"]
[Black "Diermair, Andreas"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2407"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,84,5,14,0,0,0,18,10,12,2,14,18,39,29,23,24,20,25,36,29,32,2,60,44,71,7,21,-11,0,0,8,10,54,75,62,75,69,50,52,22,48,25,22,14,41,48,47,-8,8,0,0,0,0,-198,-204,-213,-205,-203,-204,-293,-293,-293,-293,-362,-359,-418,-396]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 d5 6. Bg2 e5 7. Nf3 d4 8. O-O Nc6 9. e3 Be7 10. exd4 exd4 {[#]} 11. b4 $1 {[%mdl 512] E01: Catalan: Early deviations.} Bxb4 (11... Nxb4 12. Nxd4) 12. Nxd4 O-O (12... Nxd4 $5 13. Qa4+ $8 Bd7 14. Qxb4 Nc2 {[%mdl 64] Double Attack} 15. Qxb7 Rb8 16. Qxa7 O-O $11) 13. Nxc6 {The position is equal.} bxc6 14. Qa4 {[#]} Qe7 $146 ({Predecessor:} 14... a5 15. a3 Bc5 16. Nc3 Be6 17. Bg5 Qd4 18. Bxf6 Qxf6 19. Ne4 Qe5 20. Nxc5 Qxc5 21. Qxc6 Rac8 22. Qxc5 Rxc5 23. Rfc1 Rxc4 24. Rxc4 Bxc4 {½-½ (24) Dawson,A (2044)-Limbert,N (2321) ICCF email 2016}) 15. Bg5 Rb8 16. a3 Bc5 17. Nd2 Bd4 18. Rad1 Bg4 19. Rde1 Be6 20. Bxc6 h6 (20... Qc5 $1 $11 21. Bxf6 Bxf6) 21. Bf4 $1 $14 {[%cal Rf4b8]} Rb2 {[#]} 22. Nf3 (22. Nb3 $1 $16 {[%cal Rb3d4]} Bb6 23. Be5) 22... Bc5 23. Be5 Ra2 24. Bd4 Rxa3 25. Qb5 Bd6 {aiming for ...Rb8.} (25... Bb4 $5 {[%cal Ra3a5]} 26. Rb1 a5 $11) 26. c5 Bc7 27. Qb2 Ra5 28. Ra1 Rb8 29. Qc3 Nd5 30. Qd2 (30. Qe1 $5 {[%cal Rc6d5]} Rxa1 31. Qxa1 $14) 30... Rxa1 31. Rxa1 Nb4 32. Ba4 Qd8 33. Bc3 (33. Qc3 $14) 33... Qd5 34. Qxd5 ({Don't play} 34. Bxb4 Qxf3 35. Bd1 Qe4 $17) 34... Bxd5 35. Nd4 Na2 36. Nb5 $2 {[#]} (36. Be1 $11) 36... Rxb5 $1 $19 {[%mdl 576] Remove Defender} 37. Bxb5 {Bb2 is the strong threat.} Nxc3 38. Bd3 a5 39. Ra3 (39. f4 $142) 39... Ne4 40. Bxe4 Bxe4 41. Re3 {[#]} Bc6 $1 42. Re7 Bb8 {Accuracy: White = 68%, Black = 86%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.4"]
[White "Gaehwiler, Gabriel"]
[Black "Diermair, Andreas"]
[Result "*"]
[ECO "A40"]
[WhiteElo "2407"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 6,6,35]} 1. d4 Nf6 2. c4 e6 3. g3 c5 {[#] Not much happened in this game.} {Predecessor:} 4. d5 $146 exd5 5. cxd5 d6 6. Nc3 {A64: Modern Benoni: Fianchetto Variation: 9...Nbd7 10 Nd2 a6 11 a4 Re8.} g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Re8 10. Nd2 Nbd7 11. a4 a6 12. a5 b5 13. axb6 Nxb6 14. Nb3 Qc7 15. Na5 Nfd7 16. Bf4 Ne5 17. Qc1 f5 18. b3 Bd7 19. Ra2 Bb5 20. h3 Nbd7 21. Rd1 Rac8 22. Nc6 {1-0 (49) Firouzja,A (2723)-Duda,J (2758) Moscow 2019} *

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.5"]
[White "Stijve, Theo"]
[Black "Brunello, Sabino"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2249"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,24,37,-5,22,-27,-11,-90,-89,-98,-95,-92,-99,-97,-77,-175,-156,-175,-166,-162,-147,-231,-249,-428,-416,-421,-415,-418,-414,-404,-398,-444,-454,-545,-565,-548,-515,-645,-600,-766,-650,-987,-1002,-1541,-1527,-1494,-1492,-1597,-1531,-1531,-1513,-29990,-29981]} 1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Nxd4 e6 6. c4 {B12: Caro-Kann: Advance Variation.} Ne7 {[#]} 7. Bg5 $146 ({Predecessor:} 7. Nc3 g6 8. Bg5 a6 9. Bf6 Rg8 10. Be2 Nd7 11. cxd5 Nxf6 12. d6 Nfd5 13. O-O {0-1 (26) Barron,G-City,H IECC email 1998}) 7... h6 8. Nb5 (8. Be3 $11) 8... hxg5 $17 9. Nd6+ Kd7 10. Nxf7 Qa5+ 11. Nc3 Rh4 12. cxd5 (12. a3 $17 {is a better defense.}) 12... Nxd5 $19 ({Don't play} 12... exd5 13. a3 $17) 13. Bb5+ Nc6 {[#] Strongly threatening ...Ke8.} 14. O-O Kc7 15. Nxd5+ (15. Rc1 $17 Rd4 16. Qe2 Nxc3 17. bxc3) 15... exd5 16. Qxd5 $2 (16. Bxc6 bxc6 17. Nxg5) 16... Rd4 17. Qb3 Rb4 {[%mdl 64] [#] Double Attack} 18. Bxc6 {And now Qd3 would win.} Rxb3 19. axb3 Qd2 20. Bf3 {If White can now play Rfd1 this consolidates a bit.} Be6 21. Rfc1+ Kb6 22. Rd1 Qf4 23. Nd8 Bxb3 24. Rd7 Rb8 25. Nxb7 g4 26. Na5 gxf3 27. Rd3 Be6 28. Rxf3 Qb4 29. Rc3 Bc5 30. Raa3 Qxb2 {White got outplayed after the opening. Accuracy: White = 26%, Black = 92%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.03"]
[Round "7.5"]
[White "Stijve, Theo"]
[Black "Brunello, Sabino"]
[Result "*"]
[ECO "B12"]
[WhiteElo "2249"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "23"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 8,8,19]} 1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 {[#] An uneventful encounter.} {Predecessor:} 5. Qxd4 $146 e6 6. Nc3 {B12: Caro-Kann: Advance Variation.} Nc6 7. Qf4 h6 8. h4 g6 9. Bd3 a6 10. O-O Nge7 11. Ne2 Nf5 12. c3 {0-1 (58) Karjakin,S (2754)-Wei,Y (2725) Jerusalem 2019} *

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.04"]
[Round "8.1"]
[White "Petrov, Nikita"]
[Black "Colmenares, Aurelio"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2592"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,20,25,25,25,26,40,22,22,25,23,21,35,25,28,-7,34,-11,-7,-7,-6,-4,8,0,9,8,44,36,72,55,65,-16,60,50,58,59,76,73,53,47,76,46,63,53,56,45,47,22,116,109,109,109,271,218,655,634,29981,604,562,597,467,561,534,529,585,554,29991,554]} 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Bd3 b6 6. O-O {D30: Queen's Gambit Declined: Systems without Nc3.} Bd6 7. Nc3 Nbd7 8. e4 {White is slightly better.} dxe4 9. Nxe4 Nxe4 10. Bxe4 Qc7 11. Re1 Bb7 12. Bg5 O-O {[#]} (12... h6 $5 {[%cal Rh6g5]} 13. Bh4 Nf6 $11) 13. Bc2 $146 ({Predecessor:} 13. Qd2 f6 14. Bh4 Rae8 15. Rad1 Bf4 16. Qc3 c5 {0-1 (16) Clark,R (2206)-Orlando,E ICCF email 2017}) 13... Rfe8 14. Qd3 Nf8 $1 15. Rad1 Rac8 16. a3 $36 {[%mdl 2048] White has some pressure.} f6 17. Bh4 a5 18. Bg3 Bxg3 19. hxg3 c5 20. Qe3 (20. d5 $14) 20... Bxf3 (20... Red8 $11) 21. gxf3 $14 cxd4 22. Rxd4 Red8 23. Red1 Rxd4 24. Rxd4 Rd8 25. b4 axb4 {...Rxd4 is the strong threat.} 26. axb4 Rxd4 27. Qxd4 Kf7 28. Ba4 g5 (28... Qe5 $11 {remains equal.} 29. Qd1 Qc3) 29. c5 $16 bxc5 30. bxc5 {[%cal Bb4c5,Bc5c6][%mdl 32]} h5 $2 {Now Black is done in.} (30... Qa7 $16) 31. c6 $1 $18 Ng6 $2 (31... Qa5 32. Qc4 Ng6) 32. Qb4 {Hoping for Qb7.} Ke8 {[#]} 33. Qe4 (33. Qb8+ $142 $1 {[%mdl 512]} Qxb8 34. c7+ Qb5 35. Bxb5+ Ke7 36. c8=Q g4 37. Qd7+ Kf8 38. Qxe6) 33... Kf7 {[#]} 34. Qb1 $1 {[%cal Rb1b7] aiming for Qb7.} Ne7 {[#]} 35. Qb7 $1 {[%cal Rb7c7]} ({Weaker is} 35. Qh7+ Kf8 $16) 35... Qc8 36. Qd7 Kf8 37. c7 {Threatening mate with Qd8+.} Qa6 38. Qe8+ {Accuracy: White = 76%, Black = 51%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.04"]
[Round "8.2"]
[White "Donchenko, Alexander"]
[Black "Baenziger, Fabian"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2650"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "232"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,232,0,17,13,23,0,0,-2,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-23,-20,-18,-14,-33,0,0,0,0,0,0,0,-12,0,0,-12,-38,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-10,-193,22,22,24,18,22,11,13,13,13,11,8,9,18,21,22,23,24,22,35,35,35,35,35,35,32,33,49,34,47,35,35,0,44,44,44,44,45,38,41,43,43,38,49,38,41,41,36,37,38,36,38,0,35,0,29,30,33,33,33,33,39,18,39,21,22,37,19,22,31,16,19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,13,0,0,0,13,7,10,0,17,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-12842,-12843,-12843,-12843,-12845,-12845,-12850,-12850,-12850,-29971,-12851,-27999,-12851,-29974,-12851,-27999,-12851,-27999,-12851,-27999,-12851,-27999]} 1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 7. Bb5 e6 8. O-O {[#] The position is equal.} Qb6 $146 ({Predecessor:} 8... Be7 9. Ne5 Qb6 10. c4 O-O 11. Bxc6 bxc6 12. c5 Qa6 13. b4 Ne4 14. Nxe4 Bxe4 {1-0 (35) Berkes,F (2688)-Motuz,K (2348) Velky Cetin 2018}) 9. c4 dxc4 10. Qa4 a6 11. Bxc6+ $1 Qxc6 12. Qxc6+ bxc6 13. Nxc4 Nd5 14. Nd6+ Bxd6 15. Bxd6 a5 16. a4 Kd7 17. Bg3 f6 18. Nd2 Ra6 19. Nb3 {Black must now prevent Nc5+.} Rb6 20. Ra3 Bc2 21. Nc5+ Ke7 22. Re1 Kf7 23. Rxe6 Rxb2 {( -> ...Rb1+)} 24. h3 Rb6 25. Re2 Bd1 26. Re1 Bc2 27. Re2 Bd1 28. Re1 Bc2 29. Ra2 Bf5 30. f3 Rb4 31. Rc1 Re8 32. Be1 $2 (32. Kh2 $11) 32... Rxd4 $2 ({Black should try} 32... Rb1 $19 33. Ra1 Rb2) 33. Bxa5 $11 Nf4 {Strongly threatening ...Ne2+.} 34. Kh2 Ra8 35. Bc3 Rc4 36. Bd2 Rxc1 37. Bxc1 Nd3 $132 {[%mdl 2048] Black is fighting back} 38. Be3 Nxc5 39. Bxc5 {[%mdl 4096] Endgame KRB-KRB} Be6 40. Ra1 Bc4 41. a5 Bb5 42. Kg3 Ke6 43. Bb6 Kd5 44. Rd1+ Ke6 45. Rc1 Kd6 46. Kf2 Kd5 47. Rd1+ Ke6 48. Rc1 Kd5 49. h4 Bc4 50. Rd1+ Ke6 $1 51. Rd4 Bb5 52. Re4+ Kd6 53. Rg4 g6 54. Rd4+ Ke6 55. Rb4 Kd5 56. Rb1 Bc4 57. Rd1+ Ke6 $1 58. Rd4 Bb5 59. Rb4 Kd5 60. Rb2 Bc4 61. Rd2+ Ke6 62. Ke3 c5 63. Rd1 h5 64. Rd2 g5 65. Rd1 gxh4 66. Rh1 Kd5 67. Rxh4 Re8+ 68. Kf4 Re5 69. Rh1 Rg5 70. Rd1+ Kc6 71. Rc1 Ba6 72. g3 Bc8 73. Ra1 Rf5+ 74. Ke3 Re5+ 75. Kf2 Ba6 76. Ra2 Bc4 77. Rb2 Rd5 78. Ba7 Bb5 79. Rc2 Bd3 80. Ra2 Bc4 (80... Kb7 $5 81. Bb6 $8 Bb5 $11) 81. Rc2 Bd3 82. Rc3 Ba6 83. Ke3 Re5+ 84. Kf4 Rd5 85. Rb3 {Black should prevent Rb6+.} Bb5 86. Re3 Bd3 {[%csl Gd3][%cal Rd5f5]} 87. Re6+ Rd6 88. Re7 Kb5 89. Rb7+ Kc6 90. Re7 Kb5 91. Rb7+ Kc6 92. Rb6+ Kd5 93. Rb3 Kc6 94. Rc3 c4 95. Ra3 Kb5 96. Bb6 {Threatens to win with a6.} Ka6 97. Bc5 Rd5 98. Bb4 Rf5+ 99. Ke3 Rg5 100. Kf4 Rf5+ 101. Ke3 Rg5 102. Kf2 Re5 103. Ra2 Rb5 104. Bc3 Rb3 105. Bxf6 c3 106. Bg5 $2 {[%mdl 8192]} (106. Bxc3 $11 Rxc3 107. g4) 106... Rb2+ $19 {[%mdl 64] [#] Double Attack} 107. Ke3 Rxa2 108. Kxd3 {KR-KB} Rf2 109. Kxc3 Rxf3+ {[%mdl 64] Double Attack} 110. Kd2 Rxg3 111. Bd8 Rg8 112. Bf6 Rg6 {[#]} (112... Kxa5 $19 113. Ke3 Kb5) 113. Bh4 Rg4 114. Bf6 h4 115. Be5 h3 116. Ke1 Re4+ {Accuracy: White = 95%, Black = 95%.} (116... Kxa5 $19 117. Kf2 Rg2+ 118. Kf3 Rc2 119. Kg4 h2 120. Bxh2 Rxh2 121. Kf4 Kb4 122. Kg3 Re2 123. Kf3 Re8 124. Kf4 Kc4 125. Kf3 Kd4 126. Kf4 Rf8+ 127. Kg5 Ke4 128. Kg6 Ke5 129. Kg7 Rf5 130. Kg6 Ke6 131. Kg7 Rg5+ 132. Kh6 Kf6 133. Kh7 Rh5+ 134. Kg8 Rh6 135. Kf8 Rh8#) 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.04"]
[Round "8.3"]
[White "Diermair, Andreas"]
[Black "Studer, Noel"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2483"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,114,13,9,0,0,0,0,0,0,0,0,0,0,-4,6,0,4,-8,-4,-4,0,0,5,0,0,0,16,0,18,-102,-104,-93,0,0,0,0,0,0,0,0,160,-14,39,39,39,39,31,33,41,0,0,22,67,57,84,0,0,0,468,0,0,0,0,0,0,-75,-62,-101,295,-437,-442,-462,-463,-463,-445,-466,-461,-469,-462,-460,-460,-453,-443,-427,-430,-427,-418,-417,-390,-830,-819,-865,-839,-876,-856,-1071,-1063,-2175,-2027,-2808,-1152,-1150,-1120,-1102,-1051]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3 6. Qxc3 Qe7 7. d4 {is cutting edge theory. A28: English Opening: Four Knights Variation.} Ne4 8. Qd3 exd4 9. Nxd4 {The position is equal.} O-O 10. Be2 Qb4+ 11. Kf1 Qe7 12. f3 f5 13. Qd1 Nc5 14. Nb5 d6 $36 {[%mdl 2048] Black fights for an advantage.} 15. Kf2 {[#]} a5 $146 (15... Ne5 {is more complex.} 16. Rf1 a6 17. Nc3 Be6 18. b4 Ncd7) ({Predecessor:} 15... Be6 16. Nc3 a5 17. b3 Qf6 18. Bb2 f4 19. e4 Ne5 20. h4 a4 21. Rb1 axb3 22. axb3 {½-½ (56) Vaibhav,S (2597)-Vaishali,R (2313) Douglas 2018}) 16. Re1 Be6 17. Kg1 Rf6 18. Nc3 Rg6 19. Nd5 Qh4 20. Bf1 (20. Rf1 $1 $11 {was the only way to keep the balance.}) 20... Ne5 $1 $17 21. g3 Ncd3 (21... Rxg3+ $6 22. hxg3 Qxg3+ 23. Bg2 $14) (21... Bxd5 $1 $17 22. cxd5 Qh5) 22. Bxd3 $11 Bxd5 23. cxd5 Rxg3+ 24. hxg3 Qxg3+ {[%mdl 64] Double Attack} 25. Kf1 Nxf3 $2 (25... Qh3+ $11 26. Kg1 Qg3+ 27. Kf1 Qh3+ 28. Kg1 Qg3+) 26. Bb5 $2 (26. Bxf5 $16 Qg1+ 27. Ke2 Qg2+ 28. Kd3 Nxe1+ 29. Kc3 (29. Qxe1 Qxd5+ {[%mdl 64] Double Attack} 30. Kc2 Qxf5+ 31. e4 Re8 $15)) 26... Qg1+ ({Black should play} 26... a4 $11 27. Bd2 Qg1+ 28. Ke2 Qg2+ 29. Kd3 Nxe1+ 30. Qxe1 (30. Kc3 Ra5 $15) 30... Qxd5+ {[%mdl 64] Double Attack} 31. Kc2 Qc5+ 32. Bc3 Qxb5) 27. Ke2 $14 Qg2+ 28. Kd3 Nxe1+ 29. Kc3 $1 Nf3 30. Bd7 Qg4 31. b3 Rf8 32. Be6+ Kh8 33. Bb2 (33. Kb2 $16) 33... Rf6 34. Qe2 Rh6 $2 {[%mdl 8192] [#]} (34... Qb4+ $1 $11 {and Black is okay.} 35. Kc2 Rh6) 35. Rf1 $2 ({White has to play} 35. Qb5 $1 $18 {[%cal Rb5e8]} Qb4+ 36. Qxb4 axb4+ 37. Kxb4) 35... Rh2 36. Rf2 $1 ({Wrong is} 36. Qb5 $2 g6 $19) 36... Qb4+ 37. Kc2 $1 Qe4+ 38. Kc1 (38. Kd1 $1 $11 Rxf2 39. Qxf2) 38... Rh1+ $17 39. Rf1 Rh2 $2 {[%mdl 8192] [#]} (39... Rxf1+ $17 {and life is bright.} 40. Qxf1 Qxe3+ 41. Kc2 Qe4+ 42. Kd1 Qb1+ 43. Ke2 Qe4+ 44. Kd1 Qb1+ 45. Bc1 Nd4) 40. Qxh2 $4 {[%mdl 8192]} (40. Bxf5 $1 $18 {was the only winning move.} Qxd5 41. Qd3 Qc6+ 42. Qc3) 40... Qxe3+ $19 ({Inferior is} 40... Nxh2 41. Rxf5 Qh1+ 42. Kc2 $11) 41. Kc2 Nxh2 42. Rxf5 {[%cal Rf5f8]} Qe2+ 43. Kc1 {[%cal Rf5f8]} h5 44. Rf7 Qe3+ 45. Kb1 Qe4+ 46. Kc1 {Black must now prevent Rf8+.} Qh1+ 47. Kc2 {aiming for Rf8+.} Qg2+ 48. Kb1 Qg1+ 49. Kc2 {Strongly threatening Rf8+.} Nf1 ({Not} 49... Qg2+ 50. Kb1 $19) 50. Rf8+ $2 (50. Bxg7+ Qxg7 51. Rxg7 Kxg7 52. Kd3) 50... Kh7 {And now ...Qg2+ would win.Black is clearly winning.} 51. Bf5+ Kh6 {Threatens to win with ...Ne3+.} 52. Bc1+ Ne3+ {[%mdl 64] Double Attack} 53. Kb2 g5 54. Be6 Qh2+ 55. Ka1 Qc2 {[%cal Rc2c1]} 56. Rh8+ Kg6 {[%cal Rc2c1]} 57. Rg8+ Kh7 {Never resign too early! Accuracy: White = 64%, Black = 81%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.04"]
[Round "8.4"]
[White "Brunello, Sabino"]
[Black "Gaehwiler, Gabriel"]
[Result "1/2-1/2"]
[ECO "E46"]
[WhiteElo "2528"]
[BlackElo "2407"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,61,0,8,15,18,1,12,0,7,4,20,0,0,-4,-4,-1,22,23,14,18,17,18,18,16,15,15,25,6,5,6,19,7,31,12,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} Bxc3 7. Bxc3 Ne4 8. Rc1 Nxc3 (8... b6 {is interesting.} 9. Bd3 Nxc3 10. Rxc3 Bb7 11. Nf3 cxd4 12. exd4 Bxf3 13. Qxf3 Nc6) 9. Rxc3 b6 10. Nf3 Bb7 11. Be2 d6 12. O-O Nd7 {[%cal Bb8d7,Bd7c5,Bc5e4][%mdl 32]} 13. dxc5 Nxc5 14. Nd4 d5 15. cxd5 Bxd5 16. Bf3 Ne4 17. Rc2 Qd7 18. Qc1 Rac8 19. Rd1 Qb7 20. Qb1 b5 (20... g6 {is more complex.} 21. Rdc1 Rfd8 22. h4 Rxc2 23. Qxc2 e5) 21. Rxc8 (21. h3 {feels hotter.} Nf6 22. Rdc1 Bxf3 23. Nxf3 Nd5 24. Nd4) 21... Rxc8 {The position is equal.} 22. Nxb5 Qxb5 23. Bxe4 Bxe4 24. Qxe4 Qxb2 $14 {[%mdl 4096] Endgame KQR-KQR} 25. Qa4 h6 26. h3 Rc1 27. Rxc1 Qxc1+ 28. Kh2 Qc7+ 29. g3 g6 30. h4 Qc5 31. Kg2 {An uneventful encounter. Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.04"]
[Round "8.5"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Stijve, Theo"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2566"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,51,28,41,30,22,30,31,24,24,29,39,38,61,46,50,0,32,0,0,8,7,-22,0,0,0,-67,-68,-87,-75,-113,-120,-141,-148,-147,0,-7,0,-137,0,0,0,-154]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be3 a6 7. Qf3 $1 {[%mdl 4] is recently more successful than 7.Qd2. B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} Bd6 8. O-O-O {[#] aiming for Ncb5!} Be5 $1 9. Qe2 {White is slightly better.} Nge7 {[#]} 10. Qd2 $146 ({Predecessor:} 10. g3 Bxd4 11. Bxd4 Nxd4 12. Rxd4 e5 13. Rd1 b5 14. Bh3 O-O 15. Nd5 Nxd5 16. Rxd5 {1-0 (41) Anand,V (2756)-Svidler,P (2729) Amsterdam 2019}) 10... b5 11. Nf3 Bb7 12. Nxe5 Nxe5 13. Qd4 {Bxb5! is the strong threat.} d5 14. exd5 Nxd5 15. Nxd5 Bxd5 16. Bf4 Rc8 {[%csl Gc8][%cal Rc7c2]} 17. Rd2 f6 18. Bxe5 (18. h4 $11) 18... fxe5 $15 19. Qb4 {[#]} Rf8 $1 (19... Bxa2 20. b3 $16) 20. Qh4 g6 21. Bd3 Rf4 ({Resist} 21... Bxg2 22. Re1 $17) 22. Qg5 Ra4 ({Don't play} 22... Bxa2 $6 23. Re1 $11) ({Better is} 22... e4 $17 23. Be2 Bxa2) 23. Qf6 $11 Rf4 (23... e4 $11 24. Qh8+ Kf7 25. Qxh7+ Kf6 26. Qxc7 Rxc7) 24. Qg5 $17 Ra4 ({Reject} 24... Bxa2 $6 25. Re1 $11) ({Black should play} 24... e4 $17 25. Be2 Bxa2) 25. Qf6 $11 Rf4 $2 ({Black should try} 25... e4 $11 26. Qh8+ Kf7 27. Qxh7+ Kf6 28. Qxc7 Rxc7) 26. Qg5 {Accuracy: White = 83%, Black = 88%.} 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.05"]
[Round "9.1"]
[White "Colmenares, Aurelio"]
[Black "Donchenko, Alexander"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2302"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,113,25,37,15,15,0,0,-16,-14,-16,0,-12,-10,-8,5,11,0,12,24,2,-8,0,28,-3,0,0,0,-14,-22,-8,-1,-4,0,-75,-66,-76,35,19,81,84,83,79,89,76,131,121,71,78,91,62,80,80,162,106,144,37,39,37,37,41,60,18,18,21,28,22,37,4,8,8,26,0,8,0,0,0,0,0,0,-36,-28,-35,-31,-26,-29,-33,-33,-33,0,0,0,0,0,0,0,0,-8,-5102,-2518,-29981,-29983,-29984]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. O-O h6 7. c3 Nd7 8. Be3 {B12: Caro-Kann: Advance Variation.} Bh7 9. Nbd2 Nf5 10. b4 {The position is equal.} a5 11. a3 {[#]} b6 $146 ({Predecessor:} 11... Be7 12. Nb3 b6 13. Bd2 O-O 14. Bd3 Bg6 15. Bc2 Ra7 16. g4 Nh4 17. Nxh4 Bxc2 18. Qxc2 Bxh4 {½-½ (50) Murawski,G (2254)-Urban,K (2465) Poland 2013}) 12. Re1 Nxe3 13. fxe3 g5 14. Nf1 g4 15. N3d2 h5 16. b5 (16. e4 $5) 16... c5 $1 17. c4 Bh6 18. Qb3 a4 $36 {[%mdl 2048] Black has the initiative.} 19. Qc3 O-O 20. cxd5 exd5 21. Bd3 Qg5 22. Bxh7+ Kxh7 23. Rac1 (23. Rad1 $11) 23... Rae8 24. Qc2+ Kg8 (24... Qg6 $17 25. Qxa4 f6) 25. Qxa4 f6 {[#]} (25... Qg6 $11 {remains equal.}) 26. Qb3 $1 $16 {[%cal Rb3d5]} c4 {[#]} 27. Nxc4 $1 {[%mdl 512]} dxc4 28. Qxc4+ Kh8 29. e6 Ne5 30. dxe5 Qxe5 31. Qd3 Rxe6 32. Rc6 Rfe8 (32... f5 $16) 33. Qg6 ({White should try} 33. Ng3 $18) 33... Qg5 {[#]} 34. Qxg5 ({Better is} 34. Qf7 $1 $16 R6e7 35. Qb3 (35. Qxf6+ Qxf6 36. Rxf6 Re6 $16)) 34... Bxg5 $14 35. Rxe6 Rxe6 $16 {[%mdl 4096] Endgame KRB-KRN} 36. Kf2 Re5 37. Rb1 Rc5 38. Ke2 Rc3 39. a4 Ra3 $1 40. Rb4 Kg7 41. Rd4 Kf7 42. Rd6 Rxa4 43. Nd2 Ra3 44. Nc4 Rc3 45. Rc6 {Threatens to win with Nd6+.} Rc2+ 46. Kd3 Rxg2 47. Rxb6 Rxh2 48. Ra6 $1 g3 49. Ra1 g2 50. Rg1 {White wants to play b6.} h4 {And now ...h3 would win.} (50... Bh4 $5 {[%cal Rh4f2]} 51. Ke2 Bg3 $17) 51. b6 {b7 is the strong threat.} h3 {Strongly threatening ...Rh1.} 52. b7 Rh1 53. b8=Q Rxg1 54. Qb7+ Kg6 {aiming for ...Rd1+.} 55. Qc8 $2 {[%mdl 8192]} (55. Ne5+ $11 fxe5 56. Qe4+ Kg7 57. Qb7+ Kh6 58. Qc6+ Kh5 59. Qf3+ Kg6 60. Qe4+ Kh6 61. Qc6+ Kg7 62. Qb7+ Kh6 63. Qc6+) 55... Rd1+ $19 56. Ke4 g1=Q {[%cal Rg1h1]} 57. Qg8+ {Accuracy: White = 68%, Black = 80%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.05"]
[Round "9.2"]
[White "Baenziger, Fabian"]
[Black "Diermair, Andreas"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "2415"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,124,68,101,110,100,97,90,91,86,85,95,100,94,102,109,92,97,105,196,196,170,-43,0,-134,-114,-117,-120,-131,0,0,12,1,0,0,4,10,3,10,8,5,27,11,50,23,56,51,97,26,0,14,35,0,0,0,0,0,0,-14,-13,-30,-8,-8,-8,-70,-62,-241,-243,-572,-575,-571,-555,-552,-547,-638,-536,-633,-534,-563,0,-640,-640,-710,-709,-1036,-966,-1067,-767,-1600,-1600,-1600,-1600,-1600,-1600,-1593,-1593,-1593,-1593,-1586,-1586,-1538,-1534,-1082,-1034,-1433,-965,-917,-855,-6135,-5454]} 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. Nf3 O-O 6. e4 d6 7. h3 e6 8. Bd3 Nbd7 9. O-O e5 10. Bg5 {10.a3 injects fresh life into this line. Played by Wesley So in November 2019. E90: King's Indian: Classical: Early deviations and 6 h3.} h6 11. Be3 Nh7 12. Qd2 {[#] White is better.} f5 $146 ({Predecessor:} 12... g5 13. Ne2 Ndf6 14. Ng3 g4 15. hxg4 Nxg4 16. Nh5 Nxe3 17. Qxe3 Ng5 18. Nxg7 Nxf3+ 19. Qxf3 Kxg7 {½-½ (36) Ylla Soro,R (1612)-Hernandez Mediavilla,J (1312) Barcelona 2017}) 13. exf5 gxf5 14. Bxh6 e4 15. Nxe4 fxe4 16. Bxe4 Ndf6 {[#]} 17. Bg6 $1 {[%mdl 1024] White has strong compensation.} a6 (17... Bxh6 $16 {might work better.} 18. Qxh6 Qc7) 18. a4 $18 b6 19. Nh4 $2 (19. Rae1 $18) 19... Ra7 {Threatens to win with ...Ne4!} (19... Ne4 $5 20. Bxe4 Qxh4 {[%mdl 64] Double Attack} 21. Bxg7 Kxg7 $11) 20. Nf5 (20. Rfe1 $11) 20... Ne4 $1 $17 {[%csl LRd2,LRf5]} 21. Qf4 Bxf5 22. Bxf5 {Strongly threatening Bxg7.} Bxh6 (22... Nhg5 $17 23. Be6+ Nxe6 24. Qxe4 Nd4) 23. Qxh6 $11 Qf6 24. Qxf6 Nhxf6 25. Rad1 b5 26. Rfe1 Ng5 27. axb5 axb5 28. cxb5 Nh5 29. Bg4 Nf4 30. h4 (30. b4 $5) 30... Nh7 31. g3 Ng6 32. Bh5 ({Better is} 32. Re6 $16 Rf6 33. b4 cxb4 34. Re4) 32... Ne5 33. f4 Nc4 34. b3 Na3 35. Ra1 $1 {b6 is the strong threat.} Nxb5 36. Rxa7 Nxa7 37. Re7 Nb5 38. Bg4 Nd4 39. Be6+ Kh8 40. Rd7 ({White should try} 40. Kg2 $11) 40... Nf6 $15 41. Rb7 $2 (41. Rc7 $15) 41... Ra8 $19 42. h5 $2 (42. Rf7 Ne4 43. Kg2) 42... Ra2 {aiming for ...Nf3+.} 43. h6 Ne4 44. Bg4 Nxg3 45. Rd7 Ne4 46. Rf7 Ra8 47. Be6 Ra2 48. Bg4 Rb2 {Black is clearly winning.} 49. Re7 Nf6 50. Be6 Rxb3 51. Rf7 Ne4 {And now ...c4 would win.} 52. Rc7 Rb2 {( -> ...Nf3+)} 53. Bg4 {[#]} Nf6 $1 54. Be6 Nf3+ 55. Kf1 Ne4 {[%cal Re4g3]} 56. Rc8+ Kh7 {[%cal Re4g3]} 57. Bf5+ Kxh6 {[%cal Re4g3]} 58. Bxe4 Nd2+ {[%mdl 64] Double Attack} 59. Ke2 Nxe4+ {[%mdl 64] Discovered Attack} 60. Kf3 Nf6 61. Rc6 Rb3+ 62. Kg2 Ne4 {Quite a comeback for Black. Accuracy: White = 53%, Black = 81%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.05"]
[Round "9.3"]
[White "Studer, Noel"]
[Black "Brunello, Sabino"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2546"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,71,0,0,-10,17,9,10,0,27,0,24,0,41,33,52,64,265,256,254,255,287,232,209,198,198,192,193,194,191,192,191,187,258,256,271,272,265,278,269,286,267,274,259,231,292,292,282,292,12833,12836,12836,12835,12836,12836,12836,12836,29983,29984,29984,29985,29985,29986]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Nf6 7. Qe2 {C45: Scotch Game.} O-O 8. Be3 Re8 9. f3 $1 {The position is equal.} d5 {[%cal Rd5e4]} 10. O-O-O $1 d4 11. Kb1 Be6 12. Na4 Bxb3 13. cxb3 {[#]} Nxe4 $146 (13... a6 $14) ({Predecessor:} 13... Qd6 14. Bf2 Rad8 15. Nxb6 axb6 16. Qd2 Nh5 17. Bb5 d3 18. g4 Nf6 19. Bg3 Qc5 20. Bxd3 {1-0 (39) Svane,F (2383)-Minko,D (2073) Bratislava 2019}) 14. fxe4 $18 Rxe4 {[#]} 15. Bg5 $1 {[%mdl 512]} Qd5 (15... Qxg5 16. Qxe4) 16. Qb5 Qe6 17. Qc4 Qg4 18. Bd3 {Black must now prevent h3.} Ne5 19. Qc2 Nxd3 20. Qxd3 Rae8 21. h4 Qxg2 (21... h6 {was necessary.}) 22. Rhg1 Qh2 23. Bf6 g6 24. Nxb6 axb6 25. Bxd4 Qxh4 {Hoping for ...Rd8.} 26. Rh1 Qe7 27. Bc3 ({Resist} 27. Qh3 $6 h5 $16) 27... h5 28. Qd2 {Threatens to win with Qh6.} Kh7 29. Qd5 f5 $2 {[#]} (29... Kh6 30. Qxb7 f5) 30. Rxh5+ $3 {[%mdl 576] Deflection} gxh5 31. Qxf5+ {[%mdl 64] Double Attack} Kh6 32. Bd2+ Kg7 33. Qxh5 {White wants to mate with Rg1+.} Qe6 34. Bc3+ {White mates.} Kf8 35. Qh8+ Ke7 36. Qh7+ {Black did not feel at home in the position after the opening. Accuracy: White = 100%, Black = 52%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.05"]
[Round "9.4"]
[White "Gaehwiler, Gabriel"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2407"]
[BlackElo "2566"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,65,23,0,0,0,1,8,-4,-8,-8,-38,0,0,52,68,66,60,87,0,0,0,73,72,85,99,93,92,112,104,193,207,174,182,223,239,227,226,212,190,289,193,389,458,452,452,448,413,1592,1557,29987,29988,29989,29987,29996,29997]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Nd2 O-O 6. Ngf3 dxc4 7. Qc2 a5 {E04: Open Catalan: 5 Nf3.} 8. a3 $1 {[%mdl 4] is recently more successful than 8.Qxc4. Played by Wesley So in November 2019.} Bxd2+ 9. Bxd2 b5 {The position is equal.} 10. a4 c6 11. h4 {[#]} Ra6 $146 ({Predecessor:} 11... Na6 12. Ne5 Nb4 13. Bxb4 axb4 14. Nxc6 Qd6 15. Ne7+ Qxe7 16. Bxa8 b3 17. Qc3 Qa7 {½-½ (31) Xu,X (2581)-Wei,Y (2734) Hangzhou 2018}) 12. h5 Nd5 ({Better is} 12... h6 $11) 13. h6 $14 ({But not} 13. axb5 cxb5 14. h6 g6 $15) 13... g6 14. O-O Nb4 15. Bxb4 (15. Qb1 $16) 15... axb4 $11 16. Qd2 Qe7 (16... Qd6 $1 $11 {remains equal.}) 17. Qf4 {White leaves nothing to chance now.} Bb7 18. axb5 $1 cxb5 {[#]} 19. Qe5 $1 {[%csl Gh6][%cal Re5g7][%mdl 512]} f6 20. Qxb5 $40 {[%mdl 128] Black is in trouble.} Rc8 {[#]} (20... c3 $16 {was necessary.}) 21. Nd2 $1 $18 Bxg2 22. Kxg2 Rxa1 23. Rxa1 c3 24. bxc3 bxc3 {[#]} 25. Ne4 $1 Nc6 (25... f5 $142) 26. Qc4 c2 $2 (26... f5 {was called for.}) 27. Qxc2 f5 28. Ra6 Qb7 29. Nc5 $1 {[%csl LRb7,LRe6][%mdl 64] Double Attack} Qb5 {[#]} (29... Nxd4+ $142 30. Nxb7 {[%mdl 64] Discovered Attack} Nxc2) 30. Qa2 $1 Nxd4 31. Rxe6 {[%cal Re6e8] White mates.} Kh8 {[#]} 32. Qd5 $1 {[%mdl 512]} Nc6 {[#]} 33. Qd7 $1 {Accuracy: White = 81%, Black = 40%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.05"]
[Round "9.5"]
[White "Stijve, Theo"]
[Black "Petrov, Nikita"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2249"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,80,10,8,17,13,21,22,21,-4,4,7,7,0,0,0,11,10,16,-58,-60,-61,-48,-43,-33,-114,-9,-86,29,27,14,13,29,22,10,12,19,14,16,21,22,21,52,37,30,34,60,37,35,-11,-3,-58,-47,-464,-464,-464,-464,-464,-464,-464,-464,-456,-449,-433,-411,-720,-720,-720,-720,-1508,-1480,-1095,-1013]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. Bb5 Bg7 5. O-O d6 6. Re1 e5 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 7. a4 Nge7 8. d3 O-O {The position is equal.} 9. Be3 h6 10. Bc4 Kh7 11. Nd5 Nxd5 12. Bxd5 Ne7 {[#]} 13. Bc4 $146 ({Predecessor:} 13. Bb3 f5 14. exf5 gxf5 15. c3 f4 16. Bc1 Kh8 17. Nh4 Qe8 18. d4 cxd4 19. cxd4 {1-0 (39) Parkajic,B (1706)-Grcic,V (2225) Stari Banovci 2017}) 13... f5 14. b4 (14. c3 $11) 14... cxb4 $15 15. Rb1 a5 16. c3 bxc3 17. Qc2 ({White should try} 17. Qb3 $15) 17... Bd7 (17... fxe4 $1 $17 18. dxe4 d5 19. exd5 Bf5) 18. Rxb7 (18. Qxc3 $11 Bc6 19. Bb5) 18... Bc6 (18... Qc8 $1 $17 {[%cal Rc8b7]} 19. Reb1 Re8) 19. Bb6 $36 {[%mdl 2048] White fights for an advantage.} Qe8 20. Rc7 Nc8 21. Qxc3 Nxb6 {[#]} 22. Rxc6 $1 {[%mdl 512]} Nxa4 (22... Qxc6 $2 23. Bg8+ $1 {[%mdl 512]} Rxg8 24. Qxc6 $18) 23. Qc2 Nc5 (23... Qxc6 $2 {[#] loses.} 24. Bg8+ $1 {[%mdl 512]} Rxg8 25. Qxc6 $18) 24. Rxd6 {aiming for exf5.} fxe4 $1 25. dxe4 Qa4 26. Qxa4 Nxa4 27. Bd5 Ra7 28. Rc1 Nb2 29. Rb6 Nd3 30. Rcc6 ({Better is} 30. Rcb1 $11) 30... Nb4 $1 $15 {[%cal Rb4c6]} 31. Rc3 $2 {[%mdl 8192] Now White is beyond hope.} ({Avoid the trap} 31. Rxg6 $2 Nxd5 32. exd5 a4 $19) (31. Rd6 $15) 31... Nxd5 $19 32. exd5 e4 33. Ra3 exf3 34. gxf3 Rf4 35. d6 Rd4 36. Rc6 Be5 37. Re3 (37. Rc5 $142 Bxd6 38. Rcxa5 Rxa5 39. Rxa5) 37... Bxd6 {Black is clearly winning.} 38. Re6 Bf8 39. Rxg6 a4 40. Ra6 Rdd7 {Accuracy: White = 57%, Black = 84%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.06"]
[Round "10.1"]
[White "Diermair, Andreas"]
[Black "Colmenares, Aurelio"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2483"]
[BlackElo "2302"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,71,16,-21,-20,-24,-13,-31,-25,-33,-22,-29,-5,-77,-78,-89,97,-208,-198,-212,-226,-249,-250,-241,-236,-234,-224,-234,-234,-270,-218,-469,-443,-670,-177,-377,-377,-488,-466,-471,-350,-629,-618,-517,-126,-537,-527,-29982,-29983,-29982,-29983,-29996,-29990,-29995,-29993,-29994,-29995,-29998,-29999,-29999]} 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. g4 h6 8. Rg1 {8.h3 is vanishing.} e5 {D45: Semi-Slav: 5 e3.} 9. Bd2 e4 10. Nh4 Bxh2 {Black is slightly better.} 11. Rg2 Bb8 12. O-O-O Nb6 13. c5 {[#]} (13. cxd5 $11 {remains equal.} cxd5 14. Be2) 13... Bxg4 $146 ({Predecessor:} 13... Nbd7 14. f3 Nh7 15. fxe4 Qxh4 16. exd5 Ndf6 17. d6 Bxg4 18. Be2 Bxe2 19. Rxe2 O-O {½-½ (27) Bastos,P (2460)-Krzyzanowski,W (2461) ICCF email 2016}) 14. cxb6 g5 $2 (14... axb6 $17 15. Be2 Bxe2 16. Nxe2 g5) 15. Re1 $2 {[%mdl 8192]} (15. Rxg4 $1 $16 {and life is bright. Threatens to win with Rg1.} Nxg4 16. bxa7 Rxa7 17. f3) 15... Be6 {Black continues to play with concentration.} (15... axb6 16. Nxe4 Nxe4 17. Rxg4) (15... Qxb6 16. Rxg4 Nxg4 17. Nf5 $14) 16. f3 {[%cal Rf3e4]} gxh4 17. fxe4 h3 (17... axb6 18. e5 $17) 18. Rg1 h2 (18... Qxb6 19. e5 $15) 19. Rh1 Nxe4 {Hoping for ...Nf2.} (19... Qxb6 20. e5 $15) 20. Nxe4 dxe4 21. Qxe4 Qd5 ({Not} 21... Qxb6 22. Bc4 $15) 22. Qh4 $2 (22. Qxd5 cxd5 23. bxa7 Rxa7 24. a3) 22... axb6 $19 (22... Qxh1 23. Bb4 $11) 23. e4 (23. Rxh2 $142 Rxa2 24. Bb4) 23... Qd8 $2 (23... Qxa2 24. Qf6 {[#]} Qb3 $1 {[%mdl 512]}) 24. Qf2 $2 (24. Qxd8+ Kxd8 25. e5) 24... Rg8 25. d5 Bg3 {[%mdl 64] Skewer} 26. Qg2 Ke7 27. Re2 $2 (27. Rd1 cxd5 28. a3) 27... Rxa2 28. Qf3 Qa8 $2 (28... cxd5 $19 29. exd5 {[%mdl 64] Pin} Qd7) 29. Bb4+ $2 {[%mdl 8192]} (29. dxe6 $17 {nothing else works.} Ra1+ 30. Kc2 Qa4+ 31. Qb3 Qxb3+ 32. Kxb3 fxe6 33. Bxh6) 29... c5 30. dxe6 Ra1+ {Black mates.} 31. Kc2 Qa4+ {[%mdl 64] Double Attack} 32. Kd3 Qd1+ 33. Bd2 {[#]} c4+ $1 {[%mdl 512]} 34. Ke3 {[#]} (34. Kxc4 Rc8+) 34... Ra3+ $1 {[%mdl 576] Skewer} 35. bxa3 Qb3+ {[%mdl 64] Double Attack} 36. Kd4 {Accuracy: White = 35%, Black = 70%.} 0-1

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.06"]
[Round "10.2"]
[White "Brunello, Sabino"]
[Black "Baenziger, Fabian"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2528"]
[BlackElo "2415"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,77,-25,-34,-31,18,-2,24,19,23,21,23,31,22,15,16,0,0,-23,0,0,0,-29,-31,-35,-44,-44,-41,-38,-20,-44,-17,-16,-8,-82,-91,-87,-72,-83,-91,-75,0,0,0,2,98,28,17,18,66,7,321,308,321,317,322,310,295,302,1129,1156,933,719,29996,29997]} 1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. Nc3 e5 5. Nf3 exd4 6. Qxd4 Qxd4 7. Nxd4 Bc5 8. Ndb5 Na6 9. Bf4 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4.} Be6 (9... c6 $5 {[%cal Rc6b5]} 10. Nd6+ Bxd6 11. Bxd6 Be6 $11) 10. Bxc7 O-O 11. f3 {White has an edge.} Nb4 {Strongly threatening ...Nc2+.} 12. O-O-O $1 a6 13. Nd4 {[#]} Rfc8 $146 {...Bxd4 is the strong threat.} ({Predecessor:} 13... Nd3+ 14. Bxd3 Bxd4 15. Bc2 Be3+ 16. Kb1 Rfc8 17. Rhe1 Rxc7 18. Rxe3 b5 19. e5 Nd7 {½-½ (39) Lagarde,M (2433)-Prie,E (2490) Caen 2011}) 14. Bf4 b5 15. Nxe6 fxe6 16. g4 Rd8 17. Be2 Nc6 18. h4 Nd4 {aiming for ...b4.} 19. Be5 Rac8 20. Kb1 Kf7 21. a3 Rd7 22. g5 Nh5 23. f4 Ng3 $1 {[%csl LRe2,LRh1][%mdl 64] [#] Double Attack} 24. Rhe1 (24. b4 $11 {keeps the balance.} Bb6 25. Rh3 Ngxe2 26. Nxe2) 24... Rcd8 $17 25. Bg4 {Black must now prevent f5.} Nc6 26. Rxd7+ Rxd7 27. f5 exf5 ({Black should try} 27... Nxe5 $17 28. fxe6+ Ke7 29. exd7 Nxg4) 28. exf5 $11 Nxe5 29. Rxe5 Bd4 {[#]} (29... Rd4 $1 $11 {remains equal.}) 30. Re6 (30. g6+ $1 $16 {[%mdl 512]} hxg6 31. fxg6+ {[%mdl 64] Discovered Attack} Kf8 32. Rxb5) 30... Bxc3 31. bxc3 {[%mdl 4096] Endgame KRB-KRN} Rd3 32. Kc2 (32. g6+ $14 hxg6 33. fxg6+ Kf8 34. h5) 32... a5 $2 {[%mdl 8192] This move loses the game for Black.} (32... h5 $1 $11 {and Black has nothing to worry.} 33. gxh6 gxh6) 33. g6+ $18 hxg6 34. fxg6+ Kf8 35. Re5 a4 36. h5 ({Don't do} 36. Rxb5 $6 Re3 $16) 36... b4 $2 (36... Rd6 37. Rxb5 Ke7) 37. cxb4 Rxa3 38. b5 {Threatens to win with b6.} Rb3 39. Bd7 {Accuracy: White = 81%, Black = 53%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.06"]
[Round "10.3"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Studer, Noel"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2566"]
[BlackElo "2546"]
[Annotator "TA"]
[PlyCount "149"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,149,12,16,8,14,8,15,15,14,15,9,15,14,0,0,2,22,22,22,22,21,22,22,22,22,22,22,22,43,35,33,6,43,36,49,4,77,70,79,74,77,72,98,97,92,87,149,82,118,82,93,0,111,111,111,117,118,0,141,82,127,79,156,149,142,103,116,122,111,87,99,65,75,48,65,50,99,83,245,131,385,372,788,788,788,652,353,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,89,89,89,89,89,89,89,8,0,81,80,77,32,32,32,32,0,32,0,73,0]} 1. Nf3 d5 2. d4 Nf6 3. c4 dxc4 4. e3 e6 5. Bxc4 a6 6. O-O c5 7. a4 cxd4 8. exd4 Nc6 9. Nc3 Be7 10. Bg5 O-O 11. Re1 Bd7 {[#]} 12. Bxf6 $146 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} (12. Qe2 h6 13. Bxf6 Bxf6 14. Rad1 Nb4 15. Ne5 Bc6 16. Qg4 Rc8 17. Bxe6 fxe6 18. Qxe6+ Kh7 19. Qf5+ Kg8 20. Qe6+ Kh7 21. Qf5+ Kg8 22. Qe6+ {½-½ (22) Albornoz Cabrera,C (2577)-Studer,N (2494) Bad Ragaz 2019}) ({Predecessor:} 12. Qe2 Rc8 13. Rad1 Nd5 14. Bxd5 Bxg5 15. Be4 Bh6 16. d5 exd5 17. Rxd5 g6 18. Red1 Rc7 19. Rd6 Bf4 20. R6d3 {1-0 (41) Wang,H (2680)-Volokitin,A (2668) Calimanesti Caciulata 2016}) 12... Bxf6 13. d5 Bxc3 14. bxc3 {The position is equal.} exd5 15. Bxd5 Rc8 16. Qb3 Qc7 17. Re3 Na5 18. Qb4 Qc5 19. Rd1 Qxb4 $1 20. cxb4 Bxa4 21. Ra1 Bc6 $1 {[%cal Rc6d5]} 22. Rxa5 b6 23. Rxa6 {Hoping for Bxc6.} Bxd5 24. Rxb6 Rc1+ 25. Ne1 g6 26. f3 Bc4 27. Kf2 Rc8 28. Re5 Be6 (28... Rb1 $11 {remains equal.}) 29. Nd3 $1 $16 {[%cal Rd3c1]} R1c2+ 30. Kg3 Bc4 31. Nf4 Bf1 32. Re1 Bc4 33. h4 Kg7 (33... h6 $142) 34. Rb7 (34. b5 $142) 34... Ba6 35. Ra7 Bc4 36. Rb7 Ba6 $1 {[%cal Ra6b7]} 37. Ne6+ Kg8 38. Rb6 {Strongly threatening b5.} Bc4 39. Nf4 Kg7 40. Re5 (40. b5 $142) 40... Bf1 41. Rb7 h6 {[#]} (41... Ba6 $142 42. Ra7 Bc4) 42. Ree7 $1 {[%cal Re7f7]} Bc4 43. Rec7 Bb3 44. Rxc8 Rxc8 {[%mdl 4096] Endgame KRB-KRN} 45. b5 g5 46. hxg5 hxg5 47. Nd3 {And now b6 would win.} Rc3 48. Nb4 Rc4 49. Nc6 Kf6 $2 (49... Rc2 $16) 50. Rb6 ({Better is} 50. Ra7 $18) 50... Rc3 $2 {[%mdl 8192]} (50... Rc1 $16 {was necessary.} 51. Nd4+ Be6 52. Nxe6 fxe6) 51. Nb4+ $18 Ke5 $2 (51... Kg7 52. Rc6 Re3) 52. Rc6 Rxc6 53. Nxc6+ {KB-KN} Kd6 54. Kg4 $2 (54. Nd4 $18 {and the rest is easy.} Ba4 55. Nf5+ Ke5 56. b6) 54... Bc4 $16 55. Nd4 $1 Kc5 56. b6 Kxb6 57. Kxg5 Bf1 58. g3 Kc5 {[#]} 59. Nf5 $1 Be2 {[#]} 60. f4 $1 {Nh6 is the strong threat.} Kd5 61. Nh6 Ke6 62. f5+ Ke7 63. Ng8+ Kf8 64. Nf6 Bf3 65. Kh6 Bd1 66. g4 Bb3 67. Kg5 Ke7 68. Ng8+ Kf8 69. Nf6 (69. Nh6 $11) 69... Ke7 70. Ne4 Bc2 71. Nc3 Bb3 $1 72. Nb5 Bd1 73. Nc3 Bb3 74. Ne4 Bc2 75. Nf6 {Blacks defense is rewarded with a draw. Accuracy: White = 76%, Black = 69%.} ({White should play} 75. Nc5 $16) 1/2-1/2

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.06"]
[Round "10.4"]
[White "Petrov, Nikita"]
[Black "Gaehwiler, Gabriel"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2592"]
[BlackElo "2407"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,0,0,-1,-3,9,12,4,25,16,27,24,38,27,25,15,33,37,33,34,52,28,15,23,61,59,59,59,72,68,72,60,78,79,72,66,81,97,93,79,93,43,43,43,20,52,133,130,115,108,112,68,56,52,78,25,68,72,401,352,546,553,597,588,570,558,719,685,742,682,1016,788,654]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 c5 6. a3 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} Bxc3 7. Bxc3 Ne4 8. Ne2 {[#] The position is equal.} Qf6 $146 {[%csl Ge4][%cal Rf6f2] [#]} ({Predecessor:} 8... b6 9. d5 Ba6 10. b3 b5 11. Qd3 exd5 12. Qxd5 Nxc3 13. Nxc3 Qa5 14. Qd2 bxc4 15. Bxc4 {½-½ (49) Yuffa,D (2566)-Aronian,L (2775) Moscow 2019}) 9. f3 Nxc3 10. Nxc3 d6 11. dxc5 dxc5 12. Bd3 Qe7 13. Qc2 f5 14. O-O-O Nc6 15. Kb1 b6 16. f4 e5 17. Nd5 Qf7 18. Rhf1 $1 e4 19. Be2 Be6 20. g4 fxg4 21. Rg1 Ne7 22. Nc7 ({Much worse is} 22. Bxg4 Bxd5 23. cxd5 Nxd5 $11) 22... Nf5 23. Nxe6 ({But not} 23. Qxe4 $6 Qxc7 24. Qxe6+ Qf7 $11) 23... Qxe6 24. Bxg4 Rad8 25. Qc3 {Rxd8 is the strong threat.} g6 26. Rd5 Rxd5 27. cxd5 Qf6 ({Black should try} 27... Qxd5 $14 28. Be2 Nd6) 28. Bxf5 $1 $16 Qxf5 {[%mdl 4096] Endgame KQR-KQR} 29. Rg5 Qh3 30. Re5 Qf1+ 31. Ka2 Qd3 {[#]} 32. a4 $40 {[%mdl 128] Black needs to defend precisely.} (32. Qxd3 $1 $16 exd3 33. Kb3) 32... a6 33. a5 Qxc3 $4 {[%mdl 8192] This move loses the game for Black.} (33... bxa5 $16 {is more resistant.} 34. Qxc5 Rb8) 34. bxc3 {KR-KR} b5 (34... bxa5 $142 35. Rxe4 Rd8) 35. Rxe4 $18 {White is clearly winning.} Rf5 36. Re6 Rxd5 37. Rxa6 Rd2+ 38. Kb3 Rxh2 39. Rb6 c4+ 40. Kb4 Rb2+ {Accuracy: White = 88%, Black = 60%.} 1-0

[Event "Accentus Young Masters 2020"]
[Site "Bad Ragaz"]
[Date "2020.03.06"]
[Round "10.5"]
[White "Donchenko, Alexander"]
[Black "Stijve, Theo"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2650"]
[BlackElo "2249"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.26"]
[EventType "schev"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,20,15,0,0,0,-7,0,0,0,17,16,10,16,29,18,34,15,68,63,81,76,75,75,100,84,212,201,218,183,174,182,216,223,221,183,206,206,202,210,199,175,202,179,200,186,352,337,777,745,29993,1316,29952,7146,29996,29997,29997,29998,29998,29999,29999]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. e3 Nf6 5. d4 e4 6. d5 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} (6. Ne5 {feels hotter.} cxd4 7. exd4 Bb4 8. Be2 Qe7 9. Bf4) 6... exf3 7. dxc6 dxc6 8. Qxd8+ {The position is equal.} Kxd8 9. gxf3 g6 10. b3 Bg7 11. Bb2 {[#]} Bf5 $146 ({Predecessor:} 11... Ke7 12. O-O-O Be6 13. Ne2 Rhd8 14. Bg2 Rxd1+ 15. Rxd1 Rd8 16. Rxd8 Kxd8 17. f4 b5 18. Bxc6 bxc4 {0-1 (34) Afanasiev,N (2517)-Belov,V (2598) Moscow 2019}) 12. Ne4 Bxe4 13. fxe4 Nh5 (13... Kc7 $11) 14. e5 Re8 15. O-O-O+ Kc7 {[#]} 16. Bh3 $1 $36 {[%mdl 2048] aiming for Rd7+. White is on the roll.} Re7 17. Bg4 a5 (17... Rf8 $16) 18. f4 $18 a4 19. Bxh5 gxh5 20. Rhg1 Bh6 21. Rg3 b5 22. cxb5 cxb5 23. Rd5 Rd7 24. Rxc5+ {[%mdl 64] Double Attack} Kb6 25. Rc2 Rad8 {[%csl Gd8][%cal Rd7d1]} 26. Ba3 Rd1+ 27. Kb2 R8d5 $2 (27... Bf8) 28. Rg8 Re1 $2 (28... Rd8) 29. Rgc8 Rdd1 30. Bb4 (30. R2c6+ $142 Kb7 31. R8c7+ Kb8 32. Rxf7 Re2+ 33. Kc3 Bf8 34. Bxf8 Rc1+ {[#]} 35. Kd3 $1 {[%mdl 512]} Rxc6 36. Kxe2) 30... Rb1+ {[#]} 31. Ka3 $1 {White wants to mate with R2c6+.} Red1 32. R2c6+ {[%mdl 64] Double Attack. White mates.} Kb7 33. R6c7+ {[%mdl 64] Double Attack} Ka6 34. Ra8+ Kb6 35. Ba5# {Black did not feel at home in the position after the opening. Accuracy: White = 93%, Black = 43%.} 1-0

