[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.1"]
[White "Keymer, Vincent"]
[Black "Smit, Devon"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2588"]
[BlackElo "1888"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,127,-7,-3,-10,-6,0,0,5,10,0,0,0,-6,-1,0,-21,-6,-19,35,-3,2,-13,-14,-23,-16,-33,-19,-13,18,-6,29,27,28,-8,16,0,16,5,16,18,17,13,21,18,31,29,49,53,54,56,95,97,119,87,76,77,56,80,74,-35,-28,-165,-159,-150,-157,-140,-155,-173,-147,-146,-145,-149,-143,-157,-169,-153,-129,-168,-112,-160,-155,-159,-175,-162,-141,-243,-241,-231,-217,-239,-237,-229,-232,-220,-136,-147,-131,-198,-166,-224,-211,-464,-501,-485,-263,-403,-384,-512,-512,-497,-497,-490,-476,-1412,-1391,-1096,29970,29971,29994,29995]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 a6 5. cxd5 exd5 6. g3 {[#] A17: English Opening: 1...Nf6 with ...Bb4.} Be7 $146 ({Predecessor:} 6... Bd6 7. Bg2 c5 8. d4 Nc6 9. dxc5 Bxc5 10. O-O O-O 11. a3 Bg4 12. b4 Ba7 {0-1 (51) Regecova,N-Kral,K (1829) Sliac 2011}) 7. Bg2 O-O 8. O-O {The position is equal.} c6 9. b3 Bf5 10. d3 h6 11. Bb2 Nbd7 12. Qe2 Bh7 13. Rfd1 Qb6 (13... Bd6 $11) 14. Rac1 Rad8 15. Nd4 Rfe8 16. Qf1 Qa7 17. a3 Bf8 18. b4 Ne5 19. Nb3 Nfd7 20. h3 Bg6 21. Kh1 Nb6 22. Nb1 Na4 23. Bd4 Qb8 24. f4 Nd7 25. Nc3 $36 {[%mdl 2048] White has good play.} Nxc3 26. Rxc3 Bh7 27. Re1 Be7 28. e4 dxe4 29. dxe4 ({Reject} 29. Bxe4 Bf6 $15) 29... Nf6 30. Rce3 a5 31. Bb6 axb4 32. Bxd8 Qxd8 33. axb4 Bxb4 34. Rd1 (34. R1e2 $16) 34... Qb6 $15 35. Qe2 {[#]} (35. Nd4 $11) 35... Nd5 $1 $19 {[%mdl 576] Pin} 36. Red3 (36. exd5 Rxe3) 36... Nc3 37. Rxc3 Bxc3 38. Qc4 Qb4 39. Qxb4 Bxb4 40. e5 Bf5 41. g4 Be6 42. Nc1 Rc8 43. Nd3 Be7 (43... Rd8 $19 44. Rb1 Ba3) 44. f5 Bc4 45. Nb2 Ba6 46. Rd7 Bg5 47. Na4 {[#]} (47. Be4 $17) 47... Re8 $1 48. Nc5 Rxe5 {...Re1+ is the strong threat.} 49. Nxa6 Re1+ ({Weaker is} 49... bxa6 50. Bxc6 g6 51. fxg6 $15) 50. Bf1 Rxf1+ {[%mdl 4096] Endgame KRB-KRN} 51. Kg2 Rb1 52. Nc5 b5 {[%cal Bb7b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 53. Rb7 (53. Rc7 $17) 53... b4 54. Rb8+ (54. Kf2 $142) 54... Kh7 55. Nd7 $2 (55. Rb7) 55... Be7 56. Rb7 f6 (56... b3 $142 {aiming for ...b2.} 57. Ne5 b2) 57. Nb8 (57. Ne5 {was worth a try.} fxe5 58. Rxe7) 57... Bd6 {Hoping for ...Bxb8.} 58. Nxc6 b3 59. Na5 b2 60. Nc4 Be5 61. Nxe5 (61. Rb3 $142) 61... fxe5 62. f6 Kg6 $4 {[%mdl 8192]} (62... Kg8 $19 63. Rb8+ Kf7 64. fxg7 Kxg7) 63. f7 Rc1 64. f8=Q {Quite a comeback for White.  Weighted Error Value: White=0.37/Black=0.25} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Bjerre, Jonas Buhl"]
[Black "Oosthuizen, Michal Jacobus"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2551"]
[BlackElo "1920"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,49,17,4,20,16,58,59,71,75,209,213,212,212,212,211,212,207,207,210,318,318,310,310,385,382,380,366,521,489,508,512,737,733,1321,1312]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Nf3 d6 6. Be2 Nc6 7. O-O e5 8. dxe5 dxe5 9. Bg5 Bg4 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1.} 10. Qxd8 Raxd8 11. Nd5 $1 {[%cal Rd5f6] [#]} Nxd5 $146 {White is slightly better.} ({Predecessor:} 11... Rd6 12. Bxf6 Bxf6 13. c5 Re6 14. Nxc7 Re7 15. Nd5 Re6 16. Rfd1 Bd8 17. b4 Kg7 {1-0 (59) Paravyan,D (2653)-Matinian,N (2475) Lichess.org INT 2020}) 12. cxd5 f6 (12... Bxf3 $16 13. Bxf3 f6) 13. dxc6 $18 {aiming for Be3.} fxg5 14. Bc4+ Kh8 15. Nxg5 bxc6 16. Nf7+ Rxf7 17. Bxf7 Rd2 (17... Bh6 $142 18. Bc4 Rd4) 18. f3 Bc8 19. Rfd1 Rxd1+ 20. Rxd1 {[#] Hoping for Rd8+. KRB-KB} Bf6 21. Be8 c5 (21... Be7 $142 22. Bd7 Bb7) 22. Rd5 {White is clearly winning.} Bg5 23. Kf2 Be6 24. Rxe5 {[%mdl 64] [#] Double Attack} Bxa2 25. Rxg5 {Black got outplayed after the opening.  Weighted Error Value: White=0.00/Black=0.47} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Kacharava, Nikolozi"]
[Black "Rodrigue-Lemieux, Shawn"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2443"]
[BlackElo "2276"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,134,25,47,36,47,43,47,44,50,45,62,31,43,37,100,87,148,43,35,42,37,47,47,11,0,0,2,0,0,0,1,10,10,13,15,0,16,0,34,0,0,0,7,7,24,-12,-7,-1,85,94,85,93,111,105,112,0,0,0,0,0,0,0,147,175,399,229,239,216,242,243,194,197,233,227,198,110,93,0,0,0,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Bb4+ 6. Nbd2 {B12: Caro-Kann: Advance Variation.} Nd7 7. O-O Ba5 8. a4 {White is slightly better.} Bc7 9. Nb3 {[#]} Ne7 $146 ({Predecessor:} 9... a5 10. Bg5 f6 11. Bh4 Qb8 12. Re1 fxe5 13. dxe5 Nh6 14. Nfd4 Bxe5 15. g4 Bxh2+ {1-0 (31) Cori Quispe,K (2378)-Carneiro,V (2435) Manta 2017}) 10. a5 O-O 11. Nh4 Be4 (11... f6 $14) 12. f3 $1 $16 {[%cal Rf3e4]} Ng6 (12... Bg6 $142) 13. Nxg6 (13. fxe4 $16 Qxh4 14. exd5 cxd5 15. Bd2) 13... Bxg6 $14 14. f4 Qe7 15. Be3 f6 16. Bd3 Bxd3 17. Qxd3 fxe5 18. fxe5 c5 19. Nxc5 Nxc5 20. dxc5 Bxe5 21. Bd4 Bc7 22. Rfe1 Rae8 23. b4 Qg5 24. Qe3 Bf4 25. Qh3 e5 26. Be3 e4 27. Bxf4 Qxf4 28. Qe3 Qg4 (28... Qxe3+ $1 $11 29. Rxe3 d4) 29. a6 $16 bxa6 30. Rxa6 Rf3 31. Qd4 Ref8 {White must now prevent ...Rf2!} 32. Raa1 {[#]} (32. Rxa7 $6 Rf2 $11) (32. Qxd5+ $16 Kh8 33. Raa1 (33. Rxa7 Rf2 {[%mdl 64] Double Attack} 34. Rxg7 Rxg2+ 35. Kh1 Rxh2+ 36. Kxh2 Rf2+ {[%mdl 64] Double Attack} 37. Kh1 Qh4+ 38. Kg1 Qh2#)) 32... Rf2 $1 $11 {[%csl Gf2][%cal Rg4g2][%mdl 512]} 33. Qxd5+ (33. Qxf2 Rxf2) 33... R8f7 $1 {[%csl Gf2][%cal Rg4g2]} 34. Qd8+ Rf8 {[%csl Gf2][%cal Rg4g2]} 35. Qd5+ {[%mdl 64] Double Attack} Kh8 (35... R8f7 $1 $11 36. Qa8+ Rf8 37. Qd5+) 36. Qxe4 $16 Qg5 $2 ({Stronger than} 36... Rf1+ 37. Rxf1 Rxf1+ 38. Rxf1 Qc8 39. Qe7 Qg8 40. Rf8 $1 {[%mdl 512]} h5 41. Rxg8+ Kxg8 42. c6) (36... R2f4 37. Qe5 Rxb4 38. Rxa7 Qg6) 37. c6 (37. Rf1 $142 Qd2 38. h3) 37... Qb5 $18 {[#]} 38. h3 $1 h6 39. Ra5 ({Less strong is} 39. Rxa7 Qb6 $14) 39... Qb6 40. Rc5 R2f4 41. Qe7 R4f7 42. Qe3 ({White should try} 42. Qd6 $18) 42... Qxb4 $16 43. c7 (43. c4 $16) 43... Rc8 $1 $11 {The position is equal.} 44. c3 {White threatens Qe8+! and mate.} Qh4 45. Qe6 Qf2+ 46. Kh1 Rcxc7 47. Rxc7 Rxc7 {[%mdl 4096] Endgame KQR-KQR} 48. Qe8+ Kh7 49. Qe4+ g6 50. c4 a5 51. Rb1 Qf7 52. Qa8 Qf5 53. Rb8 {Hoping for Rh8+.} Qf1+ 54. Kh2 {Threatens to win with Rh8+.} Qf4+ 55. Kh1 $1 Qd4 (55... Rxc4 56. Rh8+ Kg7 57. Qg8+ Kf6 58. Qf8+ Ke5 59. Qb8+ Ke4 60. Qb1+ Ke5 61. Re8+ Kd5 62. Qb7+ Kd4 63. Qb6+ Kc3 64. Qxa5+ Kb3 65. Qb6+ Ka3 66. Re3+ Ka4 67. Qb3+ Ka5 68. Re1 $18) (55... Qe5 {looks sharper.} 56. Re8 Qd4 57. Qxa5 Qxc4 58. Qe5 Rg7) 56. Qxa5 Qxc4 {( -> ...Qf1+)} 57. Rb1 (57. Qe5 {seems wilder.} Rg7 58. Rb6 h5 59. Rb8 Qc1+ 60. Kh2) 57... h5 58. Qd2 Rf7 59. Rc1 Qe4 60. Re1 Qh4 61. Qe2 {Cut Off at move 61} Qg3 62. Rf1 Rc7 63. Qe6 Kh6 64. Qg8 Qe5 65. Qf8+ Qg7 66. Qxg7+ Kxg7 67. Kh2 Rd7 {Black defended with fortune.  Weighted Error Value: White=0.16/Black=0.16} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Huang, Renjie"]
[Black "Concio, Michael Jr."]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "2422"]
[BlackElo "2297"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,69,17,10,39,30,45,45,61,71,62,52,54,56,68,40,74,18,29,18,27,24,21,0,78,95,90,109,305,292,395,392,400,393,393,383,343,389,408,402,389,382,439,428,576,547,559,535,1130,1086]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. d3 h6 9. Nbd2 d6 10. c3 Re8 11. Nf1 Bf8 12. Ng3 g6 {C90: Closed Ruy Lopez with 7...d6: Early deviations.} 13. a4 {Strongly threatening axb5.} b4 {[#]} 14. a5 $146 ({Predecessor:} 14. Bd2 d5 15. cxb4 Nxb4 16. exd5 Nxd3 17. Re3 Nc5 18. Bc4 e4 19. b4 Ncd7 20. Nd4 {0-1 (40) Kyriakides,S (2202)-Kostin,A (2087) Vancouver 2010}) 14... Rb8 {White is slightly better.} 15. Bc4 Bg7 16. Bd2 bxc3 17. bxc3 Na7 18. Qc2 c5 19. d4 (19. Qc1 $16) 19... cxd4 $11 20. cxd4 Nb5 21. dxe5 dxe5 22. Be3 Nd4 (22... Be6 $11 {remains equal.}) 23. Bxd4 $16 exd4 {[#]} 24. e5 $1 {[%cal Re5f6]} d3 $2 {[#] Loses the game.} (24... Nd5 $16) 25. Qa2 $1 $18 ({Not} 25. Bxd3 Ng4 $14) ({Stronger than} 25. Qxd3 Qxd3 26. Bxd3 Nd7 $11) 25... Nd7 {[%cal Rd7e5]} 26. Bxf7+ {[%mdl 64] Double Attack} Kh7 {[%cal Re8e5]} 27. Bxe8 Qxe8 28. Rad1 Nc5 29. Ne4 Be6 30. Qd2 Nxe4 31. Rxe4 Bb3 32. Rde1 {White is clearly winning.} Bc2 33. Nd4 Rc8 34. e6 Rc4 35. Nxc2 {Weighted Error Value: White=0.10/Black=0.45} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Raja Rithvik R"]
[Result "1-0"]
[ECO "E36"]
[WhiteElo "2414"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,113,-1,0,0,0,-7,10,-12,0,0,11,0,21,8,31,0,0,0,33,22,10,0,53,42,63,60,70,68,68,70,65,63,77,72,73,77,91,50,65,20,69,74,64,59,242,248,248,248,223,231,236,231,233,227,225,219,220,222,210,219,227,230,220,213,294,293,734,734,734,719,718,655,800,805,796,771,884,883,847,810,770,753,1345,1290,29964,29965,5114,5237,5177,4704,4802,2312,29980,29981,29981,29982,29982,29983,29981,29982,29988,29989,29991,29992]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. e3 {E36: Nimzo-Indian: Classical: 4...d5 5 a3.} b6 8. Nf3 Ba6 9. b3 {The position is equal.} Nbd7 10. Be2 c5 11. O-O Rc8 12. a4 {[#]} cxd4 $146 ({Predecessor:} 12... dxc4 13. bxc4 Qc7 14. Bb2 Bb7 15. dxc5 Nxc5 16. a5 Rfd8 17. Nd4 Nce4 18. Qb4 Qc5 19. Qxc5 Nxc5 {1-0 (37) Gareyev,T (2598)-Gordon,S (2495) Sitges 2019}) 13. exd4 dxc4 14. bxc4 Qc7 {[%cal Ra6c4]} 15. Ba3 Rfe8 16. Rfc1 Nd5 (16... e5 $11) 17. Qd2 $14 Nf4 18. Bf1 Ng6 19. a5 Bb7 20. axb6 axb6 21. Qe3 Nf6 {White must now prevent ...Ng4.} 22. h3 Ra8 23. Rab1 Ne7 24. Bxe7 Rxe7 25. Rb3 Rd8 26. Ne5 Be4 27. f3 Bg6 $2 {[#] A mistake that costs the game.} ({Black should play} 27... Ba8 $14) 28. c5 $1 $18 {[%cal Rc5b6]} bxc5 29. Rxc5 Qd6 30. Nc6 {[%mdl 64] Double Attack} Red7 31. Nxd8 Rxd8 32. Qe5 h5 33. Qxd6 Rxd6 34. Rb8+ Kh7 35. Rcc8 {[%csl Gb8][%cal Rc8h8]} Kh6 36. Rh8+ Kg5 37. Rb5+ Rd5 38. g3 {aiming for h4+.} Bh7 $2 (38... Bf5 39. Kf2 Rxd4) 39. Rxd5+ exd5 {[%mdl 4096] Endgame KRB-KBN} 40. h4+ Kh6 41. Bd3 g6 {Now ...Ng8 and Black clings on.} 42. Rd8 Kg7 43. Kf2 Bg8 44. Ke3 Bh7 45. Kf4 Ng8 46. Ke5 Ne7 47. Kd6 Kf6 48. Re8 Ng8 49. Kxd5 Kg7 50. Ke5 Nf6 51. Rd8 Bg8 52. d5 {White mates.} Nh7 53. d6 f6+ 54. Kd4 Nf8 55. Bc4 Be6 {[#]} 56. Rxf8 $1 Bxc4 {[#]} (56... Kxf8 57. Bxe6) 57. d7 $1 {[%mdl 512] Weighted Error Value: White=0.05/Black=0.63} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "He, Anthony"]
[Black "Svane, Frederik"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2337"]
[BlackElo "2421"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,113,-4,33,26,31,25,47,47,78,62,102,89,118,115,119,79,74,24,23,0,63,56,106,62,137,131,128,141,134,120,333,342,331,326,319,324,295,159,182,27,39,31,75,67,88,87,71,72,206,207,212,204,196,191,200,203,176,184,267,267,267,180,284,281,477,272,908,908,712,599,1320,1284,1183,1131,1153,1153,949,756,5532,5595,5847,4622,29976,29977,29977,29978,29977,29979,29979,29980,29980,29980,29981,29982,29983,29984,29984,29985,29984,29985]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. Qd2 {8.Qd3 gains popularity.} Be7 (8... h6 $5 {[%cal Rh6g5]} 9. Bxf6 Qxf6 $11) 9. O-O-O {B62: Sicilian: Richter-Rauzer: 6...e6: Unusual White 7th moves.} Qb6 {[#]} 10. Bxc6 $146 ({Predecessor:} 10. Be3 Qc7 11. Be2 a6 12. g4 Ne5 13. f3 O-O 14. g5 Ne8 15. h4 Nc4 16. Bxc4 Qxc4 {½-½ (52) Barna,Z (1177)-Ferluga,S (1438) LSS email 2009}) 10... Bxc6 11. f3 {White is slightly better.} Rc8 12. g4 h5 13. h3 Qa5 14. Kb1 a6 15. Nb3 Qc7 16. Bf4 Nd7 17. Bg5 Nf6 $1 18. Rhe1 Kf8 19. Ne2 d5 {[#]} (19... g6 $14) 20. e5 $1 $36 {[%cal Re5f6][%mdl 2048] White is really pushing.} Nd7 21. Bxe7+ Kxe7 22. f4 Qb6 $2 (22... Rce8 $16 {keeps fighting.}) 23. f5 $18 Kd8 24. fxe6 ({Don't take} 24. Qg5+ Kc7 $18) 24... fxe6 25. Nf4 ({Less strong is} 25. Qg5+ Kc7 $18) 25... Ba4 26. Nxh5 (26. Nd4 $18 Kc7 27. b3 (27. gxh5 Kb8 $16)) 26... Kc7 $16 27. Qa5 $2 (27. Re3 $18) 27... Qxa5 $1 $11 28. Nxa5 Bxc2+ 29. Kxc2 {White leaves nothing to chance now.} Kb6+ 30. Kb1 {Threatens to win with Nb3.} Kxa5 31. Nxg7 Rc6 {[#]} (31... Nc5 $16 {was necessary.}) 32. Nxe6 $1 $18 {[%mdl 576] Remove Defender} Rxe6 33. Rxd5+ {[%mdl 64] Double Attack} Kb6 34. Rxd7 Rxh3 35. Rd6+ Rxd6 36. exd6 {[%mdl 4096] Endgame KR-KR} Kc6 (36... Rd3 $142 37. Kc2 Rxd6) 37. Rd1 {d7 would kill now.} Kd7 38. Rd4 Rh2 (38... b5 $142 39. g5 Rg3) 39. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Rg2 $2 (39... b6 {is a better defense.} 40. Rb4 Kc6) 40. Ka2 (40. a5 $142 Rf2 41. Rb4) 40... Rg3 $2 (40... b6 41. Kb3 b5 42. axb5 axb5) 41. a5 Re3 42. b4 Rg3 43. Kb2 Re3 44. Kc2 Rg3 45. Kd2 Rf3 46. Ke2 Rf6 47. Ke3 Rf8 48. Ke4 Rf6 49. g5 {White mates.} Rf1 50. Ke5 Re1+ 51. Kf6 Rf1+ 52. Kg7 Rf2 53. g6 Rf3 54. Kg8 Rf2 55. g7 Rf3 56. Rd5 Ke6 {[#]} 57. d7 $1 {[%mdl 512] Accuracy: White = 78%, Black = 48%.} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Kushko, Dmitriy"]
[Black "Pour Agha Bala, Amirreza"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "2307"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,43,47,227,210,310,303,409,364,464,468,683,677,758,773,29996,1244,29997,29998,29998,29999]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 O-O 5. O-O d6 6. d4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Re8 10. Be3 exd4 11. Nxd4 Nc5 12. Qc2 a5 13. Rad1 a4 $2 {[#] 13...Nfd7 is the modern continuation.} (13... Qe7 $14) 14. Nxc6 $1 $18 {[%mdl 512] E69: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4 c6 9 h3.} Qb6 (14... bxc6 $142 15. Bxc5 {[%mdl 64] Pin} Re6) 15. Nd4 Qb4 {[#]} 16. Ncb5 $146 {[%cal Bc3b5,Bb5c7,Bc7e8][%mdl 32] Strongly threatening Bd2.White is winning.} ({Predecessor:} 16. Ndb5 Ra6 17. Nc7 Qxc4 18. Nxa6 bxa6 19. Bxc5 Qxc5 20. Qxa4 Nh5 21. Qxe8+ Bf8 22. Rd5 Qc7 23. Rxh5 gxh5 24. Nd5 Qb7 25. Nf6+ Kg7 26. Nxh5+ Kg8 27. Nf6+ Kg7 28. e5 Qb5 {1-0 (28) Davtyan,A (1758)-Ivic,V (1935) Al Ain 2013}) 16... Nfxe4 17. Nc7 $1 {[%csl LRa8,LRe8][%mdl 64] Double Attack} Nxg3 (17... Nf6 $142 18. Nxa8 Qa5) 18. fxg3 ({Not} 18. Nxa8 Nxf1 19. Kxf1 (19. Rxf1 Qa5 $14) 19... Bxd4 $14) 18... Rxe3 {[#]} 19. Qf2 $1 {[%mdl 512]} Qa5 20. Qxf7+ Kh8 21. Ne8 {[%csl Ge8][%cal Rf7g7][%mdl 64] Double Attack} Bh6 {[#]} 22. Qf8+ $1 {[%mdl 576] Back Rank. Black got outplayed after the opening.  Weighted Error Value: White=0.13/Black=1.61} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Modi, Yashil"]
[Black "Hong, Andrew"]
[Result "0-1"]
[ECO "D23"]
[WhiteElo "2099"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,40,0,-13,-16,-29,-110,-85,-101,-97,-106,0,0,0,0,0,0,0,0,16,-8,0,-41,-35,-106,-122,-491,-470,-686,-685,-29985,-29986,-29986,-29985]} 1. d4 Nf6 2. Nf3 d5 3. c4 dxc4 4. g3 c5 5. Bg2 Nc6 {[%cal Rc5d4]} 6. O-O {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} cxd4 7. Qa4 (7. Na3 $11) 7... Bd7 8. Qxc4 {[#]Black is better.} e5 $1 9. e3 {[%cal Re3d4] [#]} Be7 $146 (9... Rc8 $17 {Threatens to win with ...dxe3.} 10. Qb3 Be6) ({Predecessor:} 9... Rc8 10. Qb3 Na5 11. Qd1 dxe3 12. Bxe3 Nc6 13. Nc3 a6 14. Re1 Be7 15. Bg5 h6 16. Bxf6 gxf6 {0-1 (51) Kais,E (2007)-Tiemann,T (2059) Baden 2018}) 10. exd4 $11 exd4 11. Nxd4 Rc8 12. Nc3 O-O 13. Rd1 Bg4 14. Nde2 (14. Nf3 $5 {[%cal Rd1d8]} Qb6 15. Qb3 $11) 14... Qa5 15. Qf4 Qh5 16. Re1 {[#]} (16. f3 $1 $15) 16... Nb4 $1 $36 {[%cal Rb4c2][%mdl 2048] And now ...Nc2 would win. Black has strong initiative.} 17. f3 $2 {[%mdl 8192] This costs White the game.} (17. Qd2 $17 {is tougher.} Rfd8 18. Nf4) 17... Nd3 $19 {[%mdl 64] Double Attack} 18. fxg4 (18. Qg5 $142 Bc5+ 19. Kf1 Qxh2 20. Qh4 Qxg2+ 21. Kxg2 Nxe1+ 22. Kf1 Nxf3 23. Qh1) 18... Nxg4 19. Qd2 Bc5+ 20. Nd4 Bxd4+ {Weighted Error Value: White=1.15/Black=0.13} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Oosthuizen, Michal Jacobus"]
[Black "Bjerre, Jonas Buhl"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1920"]
[BlackElo "2551"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,25,21,18,33,8,11,9,16,7,13,0,22,19,19,20,28,33,27,30,37,22,19,0,0,-8,0,-25,0,-49,-44,-59,0,0,-7,-24,0,0,0,-614,-56,-135,-123,-604,-630,-606,-602,-663,-662,-662,-614,-626,-643,-720,-718,-749,-733,-747,-737,-981,-991,-984,-974,-29978,-29979,-29976,-29979,-29977,-29975,-29981,-29982,-29982,-29983,-29983,-29984,-29984,-29984]} 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. e3 d6 6. Nge2 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} Ba7 7. Rb1 {7.b3 is the modern continuation.} h5 8. h4 {The position is equal.} Nf6 9. b4 O-O 10. d3 {[#]} Bg4 $146 ({Predecessor:} 10... Ng4 11. b5 axb5 12. cxb5 Ne7 13. d4 Bf5 14. Rb3 Be6 15. Ra3 Qc8 16. O-O Rd8 {1-0 (35) Hansen,C (2625)-Rasmussen,A (2532) Svendborg 2015}) 11. O-O Qd7 12. a4 {[%cal Ba2a4,Ba4b5][%mdl 32]} Rab8 13. b5 axb5 14. axb5 Ne7 15. Ba3 Bh3 16. Ra1 Bxg2 17. Kxg2 Ra8 18. Qb3 Nf5 19. Ne4 Ng4 20. c5 dxc5 (20... Nfxe3+ $15 21. fxe3 Nxe3+ 22. Kg1 dxc5 23. Bxc5 Bxc5 24. Rxa8 (24. Nxc5 $2 Rxa1 {[%mdl 64] Overworked Piece} 25. Rxa1 Qf5 $19) 24... Rxa8 25. Nxc5 Qe7) 21. Bxc5 $11 Bxc5 22. Nxc5 Qd6 23. Rxa8 Rxa8 24. Rc1 $2 {[%mdl 8192]} (24. Ne4 $11 Qg6 25. Kh1) 24... Qg6 $2 (24... Qf6 $19 {( -> ...Nfxe3+!)} 25. f4 Ngxe3+ 26. Kg1 {[#]} Nxg3 $1 {[%mdl 512]} 27. Nxg3 Qxh4) 25. Ne4 {[#]} ({White should play} 25. Kg1 $1 $15) 25... Nxh4+ $1 $17 {[%mdl 512]} 26. gxh4 $4 {[%mdl 8192] Loses the game.} (26. Kg1 $17 Nf3+ 27. Kg2) 26... Nxe3+ $1 $19 {[%mdl 64] Discovered Attack (Double check)} 27. Kf3 Nf5 {[%csl Gh5][%cal Rg6g4]} 28. Rg1 {[#]} Qxg1 $1 {[%mdl 576] Deflection} 29. Nxg1 Nd4+ {[%mdl 64] Double Attack} 30. Ke3 Nxb3 {[%mdl 4096] Endgame KRN-KNN} 31. Nf3 f6 32. Ng3 g6 33. Ne4 Kg7 34. d4 Nxd4 35. Nxd4 exd4+ 36. Kxd4 {KR-KN} Ra4+ {Black mates.} 37. Kd3 {[#]} Rxe4 $1 38. Kxe4 Kf7 39. Kd5 g5 40. hxg5 fxg5 41. Ke5 h4 42. Ke4 Ke6 {Weighted Error Value: White=0.99/Black=0.29} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.2"]
[White "Smit, Devon"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1888"]
[BlackElo "2588"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,110,-21,-21,-72,-49,-25,-34,-84,52,-89,-88,-81,-75,-106,-94,-85,-77,-207,-204,-200,-195,-218,-200,-325,-283,-308,-309,-356,-358,-440,-451,-419,-368,-363,-374,-368,-370,-447,-438,-454,-456,-449,-449,-445,-420,-389,-177,-177,-177,-176,-176,-176,-177,-164,-140,-137,-149,-186,-186,-179,-148,-179,-176,-170,-163,-162,-149,-146,-65,-65,-66,-318,-155,-357,-317,-404,-392,-394,-379,-525,-529,-509,-492,-492,-479,-584,-619,-531,-478,-1335,-1476,-1458,-1429,-1578,-1522,-12840,-12839,-2427,-2294,-2020,-2537,-1910,-1855]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bg5 Qb6 6. Bd3 {B12: Caro-Kann: Advance Variation.} (6. b3 $11 {remains equal.}) 6... Bxd3 7. Qxd3 Qxb2 8. Nf3 {Black is slightly better.} Qb5 {[#]} ({Black should play} 8... e6 $17 9. O-O Qxa1) 9. Qe3 $146 (9. Qxb5 $14 cxb5 10. Nc3) ({Predecessor:} 9. Qxb5 cxb5 10. Nc3 e6 11. Nxb5 Kd7 12. Rb1 b6 13. O-O Nc6 14. Rfc1 Na5 15. c4 Nxc4 {1-0 (32) Chernov,V-Klementev,O (2136) Alushta 2010}) 9... e6 $1 $17 10. Nbd2 Nd7 11. c4 dxc4 12. O-O Ne7 13. Rab1 (13. a4 $17 {was called for.} Qd5 14. Bxe7 Bxe7 15. a5) 13... Nd5 $19 14. Qe1 Qa6 15. Ne4 b5 16. Nh2 (16. Qe2 $142) 16... c5 17. dxc5 Nxc5 18. f4 Nd3 19. Qg3 Qb6+ 20. Kh1 Qe3 21. Qxe3 Nxe3 22. Rf3 Nf5 23. Rxb5 Nd4 $1 {[%csl LRb5,LRf3][%mdl 64] Double Attack} 24. Rb7 Nxf3 25. Nxf3 Nc5 26. Nxc5 Bxc5 27. Rc7 O-O (27... Bb6 $142 28. Rxc4 O-O) 28. Rxc5 Rfc8 29. Rxc8+ Rxc8 30. Nd4 c3 {[%mdl 1024] Threatens to win with ...c2. Black has strong compensation.} 31. Nb3 c2 32. f5 exf5 33. g3 {[#]} a5 $1 {[%cal Ba7a5,Ba5a4][%mdl 544]} 34. Kg2 (34. Nxa5 c1=Q+) 34... a4 35. Nc1 Rc5 $1 36. Bf4 Rd5 37. Kf3 Kf8 $1 38. Ke2 Rd1 ({Black should try} 38... Ke7 $17 39. Nd3 Ke6) 39. Bd2 $15 Rg1 40. Be1 $2 {[%mdl 8192] [#] Black keeps a firm grip on the game.} ({Only move:} 40. Kf2 $1 $15 Rh1 41. Ke3) 40... Ke7 (40... g5 $1 $19 {[%mdl 512] Hoping for ...f4.} 41. hxg5 f4 $1 {[%mdl 512]}) 41. Kd2 $2 {[#]} (41. Nd3 $17 {might work better.}) 41... Rg2+ $1 $19 42. Kc3 Ke6 43. Nd3 Kd5 44. Nb4+ Kxe5 {Black is clearly winning.} 45. Nxc2 Ke4 46. a3 f6 47. Nd4 g5 48. Nb5 f4 49. hxg5 (49. gxf4 $142 Kxf4 50. Nd4) 49... fxg5 50. Nd6+ Ke3 51. gxf4 gxf4 52. Nf5+ Ke2 53. Bd2 f3 54. Nd4+ Kd1 55. Bf4 f2 {Weighted Error Value: White=0.63/Black=0.18} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.3"]
[White "Hong, Andrew"]
[Black "Modi, Yashil"]
[Result "1-0"]
[ECO "C72"]
[WhiteElo "2449"]
[BlackElo "2099"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,69,46,22,114,83,82,106,152,157,128,152,209,188,194,202,199,115,241,217,366,394,343,245,246,243,258,265,252,256,248,254,244,242,250,238,235,235,229,221,232,154,386,376,383,374,425,400,421,395,782,775,754,703,664,535,5357,5349,5324,5302,5352,5352]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. d4 g6 {C72: Ruy Lopez: Deferred Steinitz: 5 0-0.} (6... b5 $11 {remains equal.} 7. Bb3 Nxd4) 7. Bxc6 Bxc6 8. dxe5 Bxe4 {White is better.} 9. Re1 {[#]} d5 $146 ({Predecessor:} 9... Bxf3 10. exd6+ Be7 11. Qxf3 Qxd6 12. Qxb7 Rd8 13. Nc3 Nf6 14. Ne4 Nxe4 15. Qxe4 O-O {1-0 (50) Kallio,J-Lehtonen,S Oulu 2006}) 10. Nc3 Bxf3 (10... h6 $16 11. Nd4 (11. Nxe4 dxe4 12. Nd2 Bg7 $16) 11... c6) 11. Qxf3 $18 ({And not} 11. gxf3 c6 $11) 11... c6 12. e6 {[%csl Ge6][%cal Rf3f7]} f6 13. h4 (13. Bf4 $18) 13... Qe7 (13... Be7 $16) 14. Bf4 Nh6 (14... f5 $142 15. Bg5 Nf6) 15. Rad1 {Black must now prevent Rxd5!} Rd8 16. h5 Bg7 17. Qg3 g5 18. Bc7 Rc8 19. Bd6 Nf5 20. Bxe7 Nxg3 21. h6 $1 {[%cal Rh6g7]} ({Inferior is} 21. fxg3 Kxe7 22. Na4 f5 $11) 21... Bxh6 22. Bxf6 Rf8 {[#]} 23. Be5 $1 {[%cal Re5g3]} ({Not} 23. fxg3 Rxf6 24. Re5 Ke7 $17) 23... Nf5 {[#]} 24. Na4 $1 Ke7 25. Bc3 {And now Bb4+ would win.} Rc7 $2 {This move loses the game for Black.} (25... Bg7 $16 {was necessary.}) 26. Ba5 Rcc8 27. Bb4+ Nd6 {[#]} 28. c4 $1 {[%mdl 512]} b5 (28... dxc4 29. Rxd6) 29. Nb6 {Hoping for Bxd6+.} c5 $2 (29... Rb8 30. cxd5 Rxb6 31. Bxd6+ Kxd6) 30. Nxd5+ {White is clearly winning.} Ke8 31. Bc3 b4 32. e7 Rf7 33. Nf6+ {[%mdl 64] Discovered Attack} Rxf6 34. Bxf6 Rc6 {[#]} 35. Re6 $1 {Accuracy: White = 70%, Black = 38%.} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.3"]
[White "Pour Agha Bala, Amirreza"]
[Black "Kushko, Dmitriy"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2432"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,115,25,66,46,47,48,48,49,38,28,26,29,25,21,22,0,37,25,29,-10,51,0,30,7,8,-24,21,-7,0,0,0,0,21,0,20,8,13,19,24,21,23,0,22,22,31,22,41,41,48,33,41,41,72,20,70,0,80,0,97,0,18,5,31,25,59,10,33,0,29,48,33,33,36,21,17,0,0,0,0,0,3,-18,0,0,183,188,218,0,410,402,402,395,385,366,370,0,92,-33,447,441,469,0,447,460,533,524,562,531]} 1. e4 d6 2. d4 Nf6 3. f3 e5 4. d5 Be7 5. Be3 Nh5 6. c4 {B07: Pirc Defence: Miscellaneous Systems.} a5 7. Nc3 Na6 {[#]} 8. Qd2 $146 {White is slightly better.} ({Predecessor:} 8. g3 g6 9. Qd2 f5 10. exf5 gxf5 11. f4 O-O 12. Nh3 Qe8 13. Be2 Qg6 14. O-O-O {1-0 (30) Dreev,A (2683)-Illescas Cordoba,M (2580) France 2002}) 8... h6 9. Bf2 Bg5 10. Qd1 O-O 11. g3 Be7 12. Nge2 Nc5 13. Bg2 f5 14. O-O fxe4 (14... f4 $1 $11) 15. fxe4 (15. Bxc5 $14 dxc5 16. Nxe4) 15... Bg4 16. h3 (16. Bxc5 $5 dxc5 17. h3 $14) 16... Bd7 17. Kh2 Nf6 18. Be3 Qe8 19. Bxc5 dxc5 20. Ng1 Nh7 21. Nf3 Bd6 22. Nh4 g6 23. Qe2 Kg7 24. Bf3 Nf6 25. Nd1 Qe7 26. Ne3 Rae8 27. Rf2 Kh7 28. Raf1 Kg7 29. Qd3 b6 30. Qe2 Kh7 31. Kg2 ({White should play} 31. Bg4 $16) 31... Bc8 32. Ng4 (32. Bg4 $14) 32... Ng8 (32... Nh5 $1 $11) 33. Ne3 Nf6 34. Nd1 (34. Bg4 $16) 34... Qd7 35. Rh1 Qe7 36. Ne3 Qd7 37. Ng4 Ng8 38. b3 Qe7 39. Ne3 Nf6 40. Kh2 Bd7 41. Bg2 a4 42. bxa4 Bxa4 43. Bf3 Bd7 44. Nhg2 Ng8 45. Ne1 Nf6 46. Rhf1 b5 $2 (46... Ra8 $11) 47. cxb5 $18 Ra8 {[#]} 48. Bg2 $2 ({Only move:} 48. Qc4 $1 $18) 48... Ng8 $2 {[%mdl 8192]} (48... Ra5 $1 $11) 49. Rxf8 Rxf8 50. Rxf8 Qxf8 51. a4 Qa8 52. Qa2 $2 {[#]} (52. Qc2 $18) 52... Qa5 (52... Bxb5 $1 $11 {remains equal.} 53. a5 Nf6) 53. N1c2 ({White should try} 53. Qb1 $16) 53... Nf6 $2 {[%mdl 8192]} (53... Bxb5 $1 $15 {stays ahead.} 54. Nc4 Qxa4 55. Qxa4 Bxa4) 54. Qb3 Qd2 55. Qb1 $2 ({Better is} 55. Nc4 $18 Qe2 56. Qf3 Qxc2 57. Qxf6 {[%mdl 64] Double Attack} Qxc4 58. Qf7+ {[%mdl 64] Double Attack} Kh8 59. Qxd7) 55... Nh5 $2 {[%mdl 8192]} (55... Nxe4 $1 $11 {and Black has nothing to worry.} 56. Nc4 Qd3) 56. Qe1 {White is clearly winning.} Qxe1 57. Nxe1 Nf6 58. Nc4 {Weighted Error Value: White=0.38/Black=0.58} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.3"]
[White "He, Anthony"]
[Black "Svane, Frederik"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2337"]
[BlackElo "2421"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,155,49,19,18,15,37,39,45,22,23,14,10,9,13,0,34,-17,-8,-20,-18,-22,-12,-21,0,0,0,0,5,10,14,0,0,0,0,0,0,-7,20,-3,0,-4,-2,-6,-7,-16,-16,-19,0,0,0,0,0,0,0,0,27,0,0,-8,-8,-8,-8,-9,-8,-8,-7,-102,-102,-158,-153,-163,-89,-421,-421,-744,-224,-160,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,-8,0,-44,-14,-14,-14,-14,-14,-30,-30,-30,-30,-30,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,-8,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,-8,-8,-8]} 1. e4 c5 2. Nf3 a6 3. c3 e6 4. d4 d5 5. exd5 exd5 6. Be2 Nf6 {B22: Sicilian: 2 c3.} 7. O-O Bd6 8. dxc5 Bxc5 {White is slightly better.} 9. Nbd2 (9. Bg5 {with more complications.} Nbd7 10. Bd3 O-O 11. Nbd2 h6 12. Bh4) 9... O-O 10. Nb3 Bb6 11. Nbd4 Nc6 12. Bg5 {[#]} Qd6 $146 ({Predecessor:} 12... h6 13. Bh4 g5 14. Bg3 Ne4 15. Nxc6 bxc6 16. Nd4 Bd7 17. Bd3 Qf6 18. Bc2 Rfe8 19. Qd3 c5 20. Nf3 Bb5 21. Qxd5 Rad8 22. Qb3 Nxg3 23. hxg3 Bxf1 24. Rxf1 g4 {0-1 (24) Hons,T (2033)-Karas,M (2278) Prague 2016}) 13. Bh4 (13. Qb3 $14 Na5 14. Qb4 Qxb4 15. cxb4) 13... Ne4 14. Bg3 Nxg3 15. hxg3 Bg4 16. Re1 Rad8 17. Qd2 Bxf3 18. Bxf3 Nxd4 19. cxd4 Rfe8 20. Rac1 g6 21. Red1 Rc8 22. Rxc8 Rxc8 23. Qg5 Rc4 24. Qe3 Qe6 25. Qf4 Kg7 26. b3 Rc2 27. Qg5 Rxa2 28. Qxd5 Qxd5 (28... a5 {is more complex.} 29. Qxe6 fxe6 30. Bxb7 e5 31. dxe5 Bxf2+ 32. Kh2 Re2) 29. Bxd5 $11 {[%mdl 4096] Endgame KRB-KRB} Rb2 30. Bxb7 Rxb3 31. Bxa6 Rb4 32. d5 Rd4 33. Rb1 Bc5 34. Bb7 Rd2 35. Rf1 h5 36. Bc6 Kf6 37. Kh2 Rxf2 38. Rb1 (38. Rxf2+ $11 {remains equal.} Bxf2 39. Kh3) 38... Bd6 $17 39. Kh3 (39. Kg1 $142 Rd2 40. Rf1+ Ke7 41. Rf3) 39... Re2 40. Rf1+ Ke7 ({Better is} 40... Kg5 $19 41. Bb5 Re4) 41. Kh4 $2 {[%mdl 8192] [#]} (41. Bb5 $17 {is tougher.} Re4 42. Bd3) 41... Re4+ $19 42. Kh3 (42. Rf4 $142 Re1 43. Rf3) 42... Re3 $2 (42... g5 {( -> ...Rh4+!)} 43. Bd7 Re3) 43. Rf3 Rxf3 $2 (43... Re1 $17 {[%cal Re1h1]} 44. Kh4 f6) 44. gxf3 $17 {KB-KB} Kf6 45. Kg2 g5 46. Kh3 Ke7 47. Bb5 Kf6 48. Bd3 Ke5 49. Bc4 Kd4 50. Bb3 Ke3 51. Kg2 (51. f4 $5) 51... h4 52. g4 h3+ 53. Kxh3 Kxf3 54. Bc2 Kf4 55. Bf5 Ke5 56. Bh7 Kxd5 57. Bg8 Ke5 58. Bxf7 {The position is equal.} Kf4 59. Bh5 Bc5 60. Kg2 $1 Bd4 61. Kf1 {Cut Off at move 61} Be5 62. Kf2 Bd4+ 63. Ke2 Ke4 64. Kd2 Be5 65. Kc2 Kf4 66. Kb3 Bc7 67. Kc4 Bb6 68. Kd5 Bf2 69. Ke6 Bg1 70. Kf6 Bf2 71. Kg6 Be1 72. Kf6 Bd2 73. Ke6 Bc1 74. Kd5 Bb2 75. Kc4 Bc1 76. Kd3 Be3 77. Ke2 Ba7 78. Kd3 {Weighted Error Value: White=0.32/Black=0.16} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.4"]
[White "Rodrigue-Lemieux, Shawn"]
[Black "Kacharava, Nikolozi"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2276"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,114,16,6,6,6,6,6,3,4,-6,0,-21,-19,-14,-14,-22,-13,-24,-25,-14,0,0,22,15,22,14,23,-10,28,0,0,-8,0,0,8,3,56,47,84,12,12,12,27,29,19,27,26,-11,-6,-33,-13,-34,-34,-47,-48,-46,-59,-55,-41,-53,-16,-48,-47,-49,-52,-70,-70,-67,-49,-98,-94,-97,-103,-124,-126,-145,-149,-171,-154,-152,-104,-175,-157,-160,-127,-125,-134,-131,-107,-94,-103,-108,-117,-104,-104,-152,-103,-458,-12,-56,0,-1609,-1528,-12835,-12831,-12845,-12846]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd3 Nxe4 5. Qe2 Qe7 6. Nf4 {Nd5 is the strong threat. C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nc6 {And now ...Nd4 would win. seems to push 6...Nf6 aside.} 7. Nd5 Nd4 {[%mdl 64] White must now prevent ...Qe5. Double Attack} 8. Nxe7 {The position is equal.} Nxe2 9. Bxe2 Bxe7 {[#]} 10. O-O $146 ({Predecessor:} 10. d3 Nf6 11. Nc3 c6 12. O-O d5 13. Re1 Be6 14. Bf3 O-O 15. Ne2 Rfe8 16. Bd2 {½-½ (25) Delgado Ramirez,N (2572)-So,W (2770) chess.com INT 2020}) 10... Bf5 11. Re1 c6 12. d3 Nc5 13. d4 Ne6 14. c3 Kd7 15. Be3 Bg5 16. Bxg5 Nxg5 17. Nd2 h5 18. Nf3 Ne6 19. Rad1 Nf4 20. Bc4 f6 21. Nh4 Bh7 $1 22. g3 Nh3+ ({Better is} 22... d5 $11 23. Bf1 (23. gxf4 dxc4 24. f5 Rhe8 $11) 23... Ne6) 23. Kg2 $14 {Hoping for Be6+.} Ng5 24. Bd3 (24. f4 $16 Ne4 25. Bf7) 24... Bxd3 $11 25. Rxd3 {White wants to play Rde3.} Rhe8 26. Rde3 Rxe3 27. Rxe3 {[%mdl 4096] Endgame KRN-KRN} Ne6 28. Nf3 a5 29. Nd2 Nc7 30. Kf1 a4 31. Ke1 Nd5 32. Rf3 b5 33. a3 Rh8 34. c4 Nb6 35. cxb5 cxb5 36. b3 Nd5 37. h4 Ra8 38. bxa4 Rxa4 39. Rf5 g6 ({Of course not} 39... Rxd4 40. Rxh5 Ke6 41. Rh7 $11) 40. Rf3 ({Don't go for} 40. Rxd5 $2 Kc6 $19) 40... Rxd4 41. Rb3 Kc6 42. Ke2 Nb6 43. f3 f5 44. Rc3+ Kd7 45. Rb3 (45. Nb3 $17 Rc4 46. Rd3) 45... Nc4 $19 46. Nb1 Kc6 47. Nc3 Rd2+ 48. Ke1 Rd3 {Strongly threatening ...Kd7.} 49. Nxb5 Rxb3 50. Nd4+ {[#]} Kd5 $1 51. Nxb3 Nxa3 $17 {KN-KN} 52. Ke2 Kc4 53. Nc1 $2 {[%mdl 8192] [#]} (53. Na5+ $17 {was the crucial defense.} Kd5 54. Kd3) 53... Kc3 $2 ({Black should play} 53... f4 $1 $19 {[%mdl 512]} 54. Kf2 (54. gxf4 Nc2) 54... Nc2) 54. Nd3 d5 ({Black should try} 54... Nc4 $15) 55. Ne5 $2 {[%mdl 8192]} (55. Nf4 $11) 55... d4 $19 {Black is clearly winning.} 56. Kd1 d3 57. g4 Nc4 {Weighted Error Value: White=0.51/Black=0.27} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.5"]
[White "Pour Agha Bala, Amirreza"]
[Black "Kushko, Dmitriy"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2432"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,49,37,24,18,29,22,93,73,83,79,118,107,137,146,162,167,257,271,240,245,367,350,346,367,310,231,252,245,226,162,162,139,263,241,643,628,1164,1161,29986,29987,29996,-939]} 1. e4 d6 2. d4 Nf6 3. f3 e6 4. c4 Be7 5. Nc3 O-O 6. Be3 {B07: Pirc Defence: Miscellaneous Systems.} c5 7. d5 e5 (7... exd5 $11 8. cxd5 (8. Nxd5 Nxd5 9. cxd5 f5 $15) 8... Nbd7) 8. Bd3 {White is better.} Nh5 9. Nge2 {[#]} g6 $146 ({Predecessor:} 9... a6 10. O-O Bg5 11. Qd2 Bxe3+ 12. Qxe3 Qh4 13. a3 Nf4 14. Nxf4 exf4 15. Qf2 Qxf2+ 16. Kxf2 {1-0 (40) Carrasco Leon,J (2015)-Navarro Alvarez,A (2110) Barcelona 2004}) 10. Qd2 Na6 11. O-O-O Nc7 12. g4 Nf4 (12... Nf6 $142 13. Bh6 Re8) 13. Nxf4 $18 exf4 14. Bxf4 Bf6 (14... b5 {is a better defense.} 15. cxb5 (15. Nxb5 Nxb5 16. cxb5 a6 $18) 15... Bh4) 15. h4 b5 16. cxb5 ({Don't take} 16. Nxb5 Nxb5 17. cxb5 a6 $18) 16... a6 17. b6 Nb5 18. Bg5 Nxc3 19. bxc3 Rb8 20. Rh2 Re8 (20... Rxb6 $16 21. Qf4 Be7) 21. Qf4 ({Don't play} 21. Bxf6 $6 Qxf6 22. h5 Rxb6 $16) 21... Bxg5 $2 {[#]} (21... Be7 22. Bxe7 Rxe7) 22. hxg5 ({Not} 22. Qxg5 Qxb6 23. h5 Qa5 $16) 22... Qxb6 23. Rdh1 Qa5 24. Qf6 Re5 {[#]} 25. Qh8+ $1 {[%mdl 33280] White took control after the opening.  Weighted Error Value: White=0.10/Black=0.74. Loss on time!?} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.6"]
[White "Concio, Michael Jr."]
[Black "Huang, Renjie"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2297"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,76,4,0,-7,-10,-12,-9,-16,-9,-47,-43,-96,-87,-93,-95,-84,-81,-93,-73,-113,-123,-288,-294,-306,-305,-306,-288,-483,-480,-487,-464,-468,-483,-459,-459,-521,-521,-519,-515,-510,-472,-462,-454,-514,-439,-441,-438,-539,-531,-521,-506,-1044,-1034,-1026,-1014,-29974,-29975,-29972,-29973,-5158,-3208]} 1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 Nf6 6. Nge2 d6 7. d3 O-O 8. O-O a6 9. h3 Rb8 10. Rb1 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 11. b3 Nd4 {[#]} 12. Be3 $146 {The position is equal.} ({Predecessor:} 12. Nxd4 cxd4 13. Ne2 bxc4 14. Nxd4 Qb6 15. Be3 Ng4 16. bxc4 Nxe3 17. Rxb6 Bxd4 18. Rxb8 Nxd1 19. Rxd1 a5 20. Rdb1 e5 21. Ra8 {1-0 (21) Granados Gomez,M (2428)-Sanchez Aller,F (2118) Cala Mendia 2001}) 12... e5 13. f4 b4 14. Na4 (14. Nd5 $15) 14... Nxe2+ $17 15. Qxe2 Nh5 16. Kh2 exf4 17. gxf4 Bd7 (17... Qh4 $6 18. Qf2 $11) 18. Nb2 f5 ({Don't take} 18... Qh4 19. Qf2 $15) 19. Nd1 $2 (19. Bf3 $17) 19... fxe4 $19 ({Not} 19... Qh4 20. Qf2 $17) 20. dxe4 {[#]} Nxf4 $1 {[%mdl 512]} 21. Bxf4 {[#]} Rxf4 $1 {[%mdl 512]} 22. Ne3 $2 {[#]} (22. Rxf4 {keeps fighting.} Be5 23. Kg1 Bxf4 24. Nb2) 22... Be5 $1 {[%cal Rf4f1]} 23. Rxf4 Bxf4+ 24. Kg1 Qg5 $1 {[%csl LRe3,LRh3]} 25. Nd5 Be5 {aiming for ...Qg3.} 26. Qd3 Rf8 27. Rf1 Rxf1+ 28. Kxf1 Qc1+ 29. Kf2 Bd4+ 30. Ke2 Kg7 31. Qd2 Qg1 32. Qg5 {intending Qe7+.} Be6 {And now ...Qf2+ would win.} 33. Nf4 Bf7 {White must now prevent ...Qf2+.} 34. Nd3 (34. e5 $142 Qf2+ 35. Kd1 Bxe5 36. Ne2) 34... h6 35. Qg3 Qb1 36. Nf4 Qxa2+ 37. Kf1 Qb1+ 38. Ke2 Qc2+ {White did not feel at home in the position after the opening.  Weighted Error Value: White=0.67/Black=0.05} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.7"]
[White "Svane, Frederik"]
[Black "He, Anthony"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2421"]
[BlackElo "2337"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,79,12,10,29,26,29,25,17,18,23,18,25,12,17,0,21,-13,0,-18,6,5,5,7,0,1,28,34,23,27,198,199,191,188,240,240,235,239,246,243,231,231,309,273,332,298,324,355,356,328,344,349,332,357,354,360,445,394,373,384,356,329,475,482,12841,12842,12842,12840,12840,0,12840,12840]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 a6 6. Bf1 b6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} 7. d4 cxd4 8. Nxd4 Nxd4 {White has an edge.} 9. Qxd4 Nc6 {[#]} 10. Qd3 $146 ({Predecessor:} 10. Qd2 Qc7 11. c4 Bd6 12. h3 Bb7 13. Nc3 Rd8 14. Qd1 O-O 15. Be3 Bc5 16. Rc1 {1-0 (42) Naiditsch,A (2626)-Anton Guijarro,D (2703) Biel 2020}) 10... Qc7 11. c4 Bd6 12. g3 Bb7 13. b3 (13. Rd1 $5 {[%cal Rd3d6]} Ke7 14. Nc3 $11) 13... Ne5 14. Qe2 h5 15. Bg2 h4 16. Be3 hxg3 17. hxg3 f5 18. Nc3 Bb4 19. Bd4 f4 $2 {[#] White now steadily converts the win.} (19... O-O-O $11 {and Black has nothing to worry.}) 20. Nd5 $1 $18 {[%cal Rd5c7][%mdl 512]} exd5 21. exd5 O-O-O (21... Bxe1 $142 22. Bxe5 {[#]} Bxf2+ $1 {[%mdl 512]} 23. Kxf2 f3) 22. Bxe5 d6 23. Bxf4 Bxe1 24. Rxe1 Kb8 25. b4 Rc8 26. Rc1 Rhe8 27. Qd3 Qe7 28. Qg6 Qf6 29. Bxd6+ Ka7 30. Qxf6 gxf6 31. c5 bxc5 32. bxc5 ({Less strong is} 32. Bxc5+ Kb8 $16) 32... Red8 {And now ...Rxd6 would win.} 33. Rd1 Rxd6 34. cxd6 {[%mdl 4096] Endgame KRB-KRB} Rd8 35. Re1 Rxd6 (35... Bc8 $142 36. Kf1 Bg4) 36. Re6 Rxe6 (36... Rd8 $142 37. d6 Bc8 38. Rxf6 Bd7) 37. dxe6 {Intending e7 and mate.} Bc8 38. Bh3 Bb7 39. Bg2 Bc8 $1 40. Bd5 {Weighted Error Value: White=0.20/Black=0.35} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "1.8"]
[White "Raja Rithvik R"]
[Black "Cardoso Cardoso, Jose Gabriel"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2408"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,133,17,19,17,22,22,32,34,37,43,50,38,41,38,67,57,77,77,75,73,72,74,118,89,97,72,86,68,74,66,84,79,75,61,87,0,76,67,81,81,63,38,37,20,40,14,12,0,31,-18,-39,-10,-13,-83,11,-62,-76,-92,-94,-116,-116,-113,-93,-92,-91,-94,-77,-90,-69,-87,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-66,-59,-59,-59,-106,-100,-102,-113,-105,-106,-156,-77,-76,-25,-25,-13,-13,-14,-15,-15,-15,-17,-98,-89,-129,-89,-89,-89,-84,-72,-97,0,-91,-95,-89,0,0,0,-104,0,0,0,-109]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Bg5 {E04: Open Catalan: 5 Nf3.} Be7 8. e3 Rb8 {Recently 8...0-0 got a lot of attention.} 9. Qc1 {White is slightly better.} O-O 10. Qxc4 h6 11. Bxf6 Bxf6 12. Nc3 Bd7 {[#]} 13. Rfd1 $146 ({Predecessor:} 13. Ne4 Qe7 14. Rfd1 Rfc8 15. Rac1 g6 16. Nxf6+ Qxf6 17. Qc3 Be8 18. Nd2 Qg7 19. Ne4 {1-0 (67) Gleizerov,E (2514)-Cornelisse,J (2123) Amsterdam 2017}) 13... Ne7 14. Ne4 Nd5 15. Nxf6+ Nxf6 16. Ne5 c6 17. Rac1 Qe7 18. b4 Rfc8 19. a4 Be8 20. Nd3 Nd5 {[%cal Bf6d5,Bd5c7,Bc7b5,Bb5d4][%mdl 32]} 21. a5 Rd8 22. Qc5 Qc7 23. Qc4 Qe7 $1 24. Nc5 f6 25. e4 Nc7 26. Qc3 Bh5 27. Rd2 Nb5 28. Qb2 e5 29. d5 Nd4 30. Rc3 cxd5 31. exd5 Bf7 32. Re3 (32. Nb3 $11 {remains equal.}) 32... Qf8 (32... Qd6 $17 33. Nb3 Qxb4 34. Nxd4 Qxb2 35. Rxb2 exd4) 33. h4 (33. f4 $11 Nf5 34. Red3 exf4 35. gxf4) 33... Bxd5 $15 34. Bxd5+ Rxd5 35. Ne6 Qd6 36. Nxd4 exd4 37. Red3 {[%cal Rd3d4] [#]} Rd8 $1 38. Rd1 h5 39. R1d2 Kh8 40. Rd1 Qe5 41. Qd2 Qf5 42. Qb2 {[%cal Rd3d4]} Qg4 43. Kg2 Qe4+ 44. Kg1 Kh7 45. Qd2 Qf5 46. Kg2 R5d6 47. Qe2 Qd5+ 48. Qf3 Kg6 49. Qxd5 Rxd5 $17 {[%mdl 4096] Endgame KRR-KRR} 50. Kf3 Kf5 51. Re1 R8d7 (51... Rb5 $142 52. Rb1 g5) 52. Re4 g5 ({Black should play} 52... R5d6 $17) 53. hxg5 $1 $11 fxg5 {And now ...g4+ would win.} 54. g4+ hxg4+ 55. Rxg4 Kf6 56. Kg3 Ke7 57. Re4+ {[#]} (57. Kf3 $1 $11) 57... Kd8 $1 $17 58. Re1 Kc7 {Hoping for ...Kc6.} 59. Rc1+ Kd6 60. Rc8 Ke5 61. Re8+ {Cut Off at move 61} Kd6 {...Kc6 is the strong threat.} 62. Rc8 $1 Ke7 63. Kg4 Rb5 64. Rc4 Rbd5 65. Rc8 R7d6 66. Rc7+ $1 Rd7 67. Rc8 {Weighted Error Value: White=0.17/Black=0.12} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.1"]
[White "Keymer, Vincent"]
[Black "Cardoso Cardoso, Jose Gabriel"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2588"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "145"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,145,29,24,25,29,33,31,20,28,27,30,27,31,24,31,27,31,0,30,28,30,27,41,38,42,21,22,31,31,29,28,36,85,85,103,75,84,76,94,50,50,50,50,50,56,56,82,17,81,49,90,88,107,102,102,103,116,76,92,92,92,74,76,51,83,83,104,68,90,51,125,125,125,125,125,125,125,122,123,0,143,0,120,0,110,66,229,229,229,229,363,229,363,363,452,395,440,275,435,386,362,362,403,360,360,356,639,618,606,570,781,750,1089,1075,1193,1189,1214,1245,1199,1029,1167,1208,2839,2761,2280,2280,29982,2395,29971,29972,29980,29981,29985,29986,29987,29988,29988,29989]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 a6 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. e3 Nbd7 8. h3 {White is slightly better.} Bd6 9. Bd3 c6 10. O-O O-O 11. Qd2 h6 12. Bf4 Qb8 {[#]} 13. Rab1 $146 ({Predecessor:} 13. Rfe1 Nh5 14. Bxd6 Qxd6 15. Ne2 Rfe8 16. Rac1 g6 17. Nf4 Ng7 18. Nxe6 Nxe6 19. e4 dxe4 20. Bxe4 {0-1 (66) Steingrimsson,H (2549)-Niemann,H (2436) New York 2019}) 13... Re8 14. Bxd6 Qxd6 15. Rfc1 g6 16. Qc2 Kg7 17. Na4 Ne4 18. b4 {[%cal Bb2b4,Bb4c5][%mdl 32]} Ng5 {Black wants to play ...Nxf3+.} 19. Nh2 Re7 20. Nc5 Nxc5 21. bxc5 Qd7 22. h4 Ne4 23. Nf1 Rae8 24. f3 Nf6 25. Rb3 Qd8 26. Qf2 Bc8 27. Bc2 Nh7 28. g4 ({White should play} 28. h5 $16) 28... Nf6 (28... f5 $11) 29. Qg3 h5 {[%cal Rh5g4]} 30. g5 Ng8 31. Rd1 Rc7 32. Qf4 Rce7 33. a3 Qc7 34. Qxc7 Rxc7 35. Rd2 Ne7 36. Ng3 Be6 37. Bb1 Rd8 38. Rb4 Bc8 39. Kf2 Rcd7 ({Better is} 39... Rf8 $14) 40. Rdb2 $16 Rc7 41. Ne2 Re8 42. Nf4 Ng8 43. Nd3 Ne7 44. Nf4 (44. Ne5 $16) 44... Rd8 (44... Ng8 $1 $11) 45. Ne2 Re8 $1 46. Ng3 Rd8 $1 47. e4 Rf8 $2 {[#] A mistake that costs the game.} (47... dxe4 $14 48. fxe4 a5) 48. e5 $1 $18 Re8 49. f4 Rf8 (49... Rh8 {keeps fighting.} 50. Ke3 a5) 50. Ke3 Re8 {[#]} (50... Rh8 {was worth a try.} 51. Rb6 Nf5+ 52. Nxf5+ gxf5) 51. f5 $1 {[%mdl 512]} Kf8 (51... Bxf5 52. Bxf5) 52. Kf3 Rd8 53. Kg2 Re8 (53... gxf5 {was called for.} 54. Nxh5 Ng6) 54. Rf2 {Black must now prevent fxg6.} gxf5 55. Nxh5 Ng6 56. Kg3 a5 57. Rb3 Be6 $2 (57... Ne7 58. Nf6 Rd8) 58. Bxf5 Bxf5 59. Rxf5 Rd8 60. Rbf3 Kg8 61. Nf6+ {Cut Off at move 61} Kg7 62. Ng4 Nf8 63. Nh6 Rdd7 64. Rf6 Ne6 65. Nf5+ Kg8 66. g6 fxg6 67. Rxg6+ Ng7 68. h5 (68. e6 $142 Re7 69. Nxe7+ Rxe7 70. Rff6 Rc7 71. h5 Kh7 72. Rf7 Rxf7 73. exf7 Nxh5+ 74. Kf3 Kxg6 75. f8=Q) 68... Kh7 69. Kg4 {White mates.} Nxf5 70. Rxf5 Re7 71. Kg5 Rc8 72. e6 Rce8 73. Rf7+ {Weighted Error Value: White=0.25/Black=0.35} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.1"]
[White "Hong, Andrew"]
[Black "Huang, Renjie"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2449"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "23"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,23,28,26,53,50,62,66]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Nh6 7. c3 O-O 8. h3 f6 9. d4 cxd4 10. cxd4 d5 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 11. Nc3 e6 {[#]} 12. Bf4 $146 ({Predecessor:} 12. b3 dxe4 13. Nxe4 Nf7 14. Bb2 Re8 15. Rc1 Nd6 16. Nc5 Nb7 17. Na4 Bd7 18. Nd2 {1-0 (29) Feller,S (2610)-Klekowski,M (2439) Cappelle-la-Grande 2016}) 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.1"]
[White "Pour Agha Bala, Amirreza"]
[Black "Kacharava, Nikolozi"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2432"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "150"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,150,29,23,22,10,26,-4,0,-2,0,-8,7,-24,-22,-16,-16,-13,-2,-22,-16,-23,-12,-23,-8,-21,-17,-13,22,2,95,81,92,77,93,108,76,80,100,41,51,56,60,55,52,0,34,23,65,83,68,76,63,75,62,80,71,69,72,76,77,58,46,45,68,8,108,64,64,39,64,64,125,114,107,64,64,74,74,15,16,14,15,29,74,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0]} 1. Nf3 d5 2. g3 Nd7 3. Bg2 e5 4. O-O Ngf6 5. c4 dxc4 6. Qa4 Bd6 7. Qxc4 O-O {A07: Réti Opening: New York and Capablanca Systems.} 8. d3 c6 9. Nc3 {[#] 9.Qc2 is setting a new trend.} Nb6 $146 ({Predecessor:} 9... h6 10. a3 a5 11. Be3 Nb6 12. Bxb6 Qxb6 13. Na4 Qc7 14. Rac1 Be6 15. Qc2 Rfe8 {0-1 (79) Ladva,O (2522)-Navara,D (2740) Katowice 2017}) 10. Qb3 h6 11. Qc2 a5 12. Nd2 Re8 13. Nde4 Nxe4 14. Nxe4 Bf8 15. Bd2 Nd5 16. a3 Bg4 17. Rfe1 Qb6 18. Nc3 Be6 19. Na4 Qa7 20. Rac1 f6 (20... c5 $11 {remains equal.}) 21. e4 $1 $36 {[%cal Re4d5][%mdl 2048] White is on the roll.} Nc7 22. Be3 Qa6 23. d4 $1 exd4 24. Bxd4 Qb5 {Threatens to win with ...Bb3.} 25. Nc5 (25. Re3 $16) 25... Bxc5 $1 $14 26. Bxc5 Bb3 27. Qc3 {And now Bf1 would win.} Ne6 28. Bd6 ({Better is} 28. Bf1 $14 Qxc5 29. Qxb3) 28... a4 29. e5 Bd5 30. Bxd5 Qxd5 31. Rcd1 Qb3 32. Qxb3 axb3 33. exf6 gxf6 34. Bb4 c5 35. Bc3 Kf7 36. Rd6 Ra6 37. Rd5 Rc6 38. f4 (38. Bd2 $14) 38... Nd4 (38... Re7 $11) 39. Rd7+ Kf8 {...Nf3+ is the strong threat.} 40. Kf2 Rxe1 41. Kxe1 {[%mdl 4096] Endgame KRB-KRN} Re6+ {[#]} (41... Nb5 $14) 42. Kd1 $1 $16 Nb5 43. Rxb7 Nxc3+ 44. bxc3 {KR-KR} c4 45. Rb4 (45. a4 $16) 45... Rc6 $1 $11 46. a4 Ke7 47. a5 Ra6 {[#]} 48. Rxc4 ({White should play} 48. Rb5 $1 $16) 48... Rxa5 {aiming for ...Ra1+.The position is equal.} 49. Rb4 Ra2 $1 50. Rxb3 {With the idea h4.} Rxh2 51. Ke1 Rg2 52. c4 Rc2 53. Rb7+ Ke6 54. Rc7 Rg2 55. Rg7 Rc2 56. Rg6 Rxc4 57. Rxh6 Rc2 58. Rh5 Rg2 59. Rh3 Kf5 60. Kf1 Ra2 61. Rh4 Rb2 62. Kg1 Ra2 63. Rh2 Ra1+ 64. Kg2 Kg6 65. Kh3 f5 66. Rb2 Rh1+ 67. Kg2 Ra1 68. Rb6+ Kf7 69. Kf2 Rc1 70. Ke3 Rc3+ 71. Kd4 Rxg3 72. Ke5 Ra3 73. Kxf5 Ra5+ 74. Kg4 Rc5 75. f5 Rc1 {Accuracy: White = 84%, Black = 85%.} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.1"]
[White "Svane, Frederik"]
[Black "Bjerre, Jonas Buhl"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2421"]
[BlackElo "2551"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,133,8,5,14,10,24,18,40,14,22,12,28,17,10,0,5,8,30,0,17,-6,-12,0,3,15,0,-5,99,87,78,83,89,59,80,69,60,62,119,110,118,123,121,112,117,116,115,118,131,134,164,94,106,85,154,104,94,101,104,94,243,235,305,328,335,202,291,301,430,421,417,392,497,505,528,516,517,493,588,587,538,510,580,579,582,677,660,623,718,743,794,784,768,677,29979,29980,29980,29980,29981,29981,29981,29982,29982,29983,29983,29984,29984,29985,29985,29986,29988,29987,29987,29988,29988,29989,29989,29990,29996,29990,29997,29998]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e5 7. Nde2 Be7 8. O-O Be6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 9. f4 Qc7 10. Ng3 Nbd7 {The position is equal.} 11. Kh1 exf4 12. Bxf4 Ne5 {[#]} 13. Qd2 $146 ({Predecessor:} 13. Nf5 Bxf5 14. exf5 Nxd3 15. Qxd3 O-O 16. Rad1 Rfd8 17. Bg5 Rac8 18. Rfe1 d5 19. Bxf6 Bxf6 20. Nxd5 Qxc2 21. Nxf6+ gxf6 22. Qxc2 {1-0 (22) Gavrilescu,D (2473)-Arunnuntapanich,T (2064) chess.com INT 2020}) 13... O-O 14. Nce2 Ng6 15. Bg5 Ng4 16. Bxe7 Qxe7 17. Nf5 Bxf5 18. exf5 Qh4 {[%csl Gg4][%cal Rh4h2]} 19. h3 N6e5 20. Qf4 {[%mdl 64] [#] Pin} Rfe8 (20... g5 $11 21. Qg3 Qxg3 22. Nxg3 Nxd3 23. cxd3 Nf6) 21. Nc3 $36 {[%mdl 2048] Black is under strong pressure.} Qh6 22. Qxh6 Nxh6 23. Rad1 Rac8 24. g4 {[#] Strongly threatening g5.} Kf8 25. f6 gxf6 (25... g6 $14) 26. Rxf6 Re6 27. Rf2 Nxd3 28. Rxd3 Ng8 29. Rdf3 f6 30. Nd5 Kg7 31. Kg2 Rf8 32. Kg3 ({White should play} 32. Nf4 $18 Re5 33. Nh5+ Kg6 34. Rb3) 32... Re5 33. Rd2 h5 (33... f5 $142) 34. Ne3 hxg4 35. hxg4 Nh6 36. Rxd6 Rfe8 {This costs Black the game.} (36... Rf7 $16 {was necessary.}) 37. Nd5 $18 f5 38. Rd7+ Kf8 39. gxf5 Rxf5 (39... b5 $142 40. c3 Rxf5) 40. Rxb7 Re2 (40... Rf7 $142 41. Rfxf7+ Nxf7) 41. Ne3 Rxf3+ 42. Kxf3 {[%mdl 4096] Endgame KRN-KRN} Rd2 43. Rb6 Nf7 44. Rxa6 Ke7 45. a4 Ng5+ 46. Kf4 Ne6+ 47. Ke5 Nc5 48. Ra7+ Kd8 49. b4 Nd7+ 50. Ke4 Kc8 51. a5 Nf6+ 52. Kf5 Nd7 53. Ke6 Re2 54. Rxd7 {White mates.} Rxe3+ {KR-KR} 55. Kd6 Rc3 56. Rg7 Rxc2 57. b5 {[%cal Bb4b5,Bb5b6][%mdl 32]} Rh2 58. a6 {[%cal Rg7g8]} Kb8 59. b6 {[%cal Rg7g8]} Rh6+ 60. Kc5 {[%cal Rg7g8]} Rh5+ 61. Kd4 {[%cal Rg7g8] Cut Off at move 61} Rh8 62. Rc7 Rh4+ 63. Kc5 Rh5+ 64. Kc6 Rh6+ 65. Kb5 Rh8 66. a7+ Ka8 67. Ka6 {Weighted Error Value: White=0.13/Black=0.27} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.2"]
[White "Bjerre, Jonas Buhl"]
[Black "Svane, Frederik"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2551"]
[BlackElo "2421"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,113,0,15,22,29,20,25,25,25,17,27,27,27,25,25,25,29,29,32,28,35,32,32,35,33,25,39,26,31,21,63,66,232,223,277,278,267,276,277,280,277,261,529,529,507,233,208,26,29,0,0,0,0,0,0,0,0,0,4,5,12,8,8,8,8,8,15,8,8,8,8,0,0,0,0,-8,-8,-8,0,-8,87,-8,-8,-137,-137,-389,-313,-29970,-29971,-29970,-29971,-29972,-29972,-29970,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Bd6 6. Bg2 {E01: Catalan: Early deviations.} O-O 7. O-O Nbd7 8. c5 {White has an edge.} Be7 9. Nc3 c6 10. b4 b6 11. Qc2 a5 12. a3 Ba6 13. Rfb1 h6 14. Bf4 Nh5 15. Be5 Nhf6 16. h3 Qc8 17. Bf4 {[#]} axb4 $146 ({Predecessor:} 17... Re8 18. Rc1 Bd8 19. e4 dxe4 20. Nxe4 Nxe4 21. Qxe4 Nf6 22. Qe1 Nd5 23. Bd6 axb4 24. axb4 Bb5 25. Ne5 bxc5 26. bxc5 {1-0 (60) Markus,R (2602)-Horvath,J (2437) Hungary 2020}) 18. axb4 Qb7 19. Nd2 Ra7 20. e4 {And now exd5 would win.} dxe4 $2 (20... Rc8 $14) 21. Ndxe4 $18 ({Not} 21. Ncxe4 Nd5 $14) ({Stronger than} 21. Bxe4 Nxe4 22. Ndxe4 (22. Qxe4 Nf6 $11) 22... Rfa8 $14) 21... Nd5 22. b5 Bxb5 23. Nxb5 Rxa1 24. Rxa1 cxb5 25. c6 {[%mdl 64] [#] Double Attack} Nb4 $2 (25... Qc8 26. Nd6 Bxd6 27. Bxd6 Re8 28. Bxd5 exd5 29. cxd7 Qxd7) 26. cxb7 Nxc2 27. Ra8 (27. Rc1 $142 Nxd4 28. Rc7 Ne2+ 29. Kf1 Nxf4 30. gxf4) 27... Nxd4 {With the idea ...Ne2+.} 28. b8=Q $2 (28. Be3 $18 Bc5 29. Rc8) 28... Nxb8 $11 29. Rxb8 Ne2+ 30. Kf1 Nxf4 31. Rxf8+ Kxf8 32. gxf4 f5 33. Ng3 Bd6 34. Ne2 {next Bc6 is good for White.} Kf7 35. Bc6 b4 36. Ba4 {Black should prevent Ke1.} Kf6 37. Kg2 g5 38. Kf3 e5 39. fxe5+ Kxe5 40. Ng3 Bc5 41. Ke2 g4 42. h4 f4 43. Nf1 Kd4 44. h5 Kc3 {[#]} (44... Ke4 $11 {keeps the balance.}) 45. Nd2 (45. Bd7 $1 $16) 45... f3+ 46. Kd1 (46. Ke1 $1 $11) 46... Bxf2 $17 47. Ne4+ $2 {[%mdl 8192]} (47. Bd7 $17 {was called for.} g3 48. Bh3) 47... Kd4 $19 48. Nxf2 $2 (48. Bc6 $19 Ke3 49. Nd2) 48... g3 49. Nh3 Ke3 50. Bc6 b3 51. Kc1 f2 $2 (51... g2 {mates} 52. Bxf3 Kxf3 53. Kb2 Kg3 54. Ng1 Kf2 55. Nh3+ Kf1 56. Kc3 g1=Q 57. Nxg1 Kxg1 58. Kxb3 Kg2 59. Kc4 Kf3 60. Kb4 Kf4 61. Kc3 Kg5 62. Kb3 Kxh5 63. Kc4 Kg4 64. Kd3 h5 65. Ke3 h4 66. Ke2 h3 67. Kf2 b5 68. Ke3 h2 69. Kd4 h1=Q 70. Kc5 Qe4 71. Kxb5 Kf4 72. Kc5 Ke5 73. Kb6 Qb4+ 74. Kc6 Ke6 75. Kc7 Qb5 76. Kc8 Kd6 77. Kd8 Qd7#) 52. Bg2 $11 {The position is equal.} Ke2 53. Nf4+ Ke1 54. Nd3+ Ke2 55. Nf4+ Ke1 56. Nd3+ Ke2 57. Nf4+ {White used his chance.  Weighted Error Value: White=0.41/Black=0.26} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.2"]
[White "Kacharava, Nikolozi"]
[Black "Pour Agha Bala, Amirreza"]
[Result "0-1"]
[ECO "B62"]
[WhiteElo "2443"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,109,29,29,15,20,3,48,45,51,37,37,45,39,52,36,39,32,33,34,39,27,0,0,0,8,22,31,0,0,0,0,0,13,0,0,0,0,0,0,-18,-7,-37,0,-153,-156,-176,-160,-184,-149,-179,-137,-151,0,-127,-124,-156,-127,-156,-147,-391,-344,-559,-477,-635,-631,-659,-658,-656,-646,-629,-600,-1943,-1916,-1162,-710,-727,-722,-827,-793,-810,-799,-808,-798,-29977,-29978,-29978,-29979,-29979,-29980,-29980,-29981,-29981,-29982,-29982,-29983,-29998,-29999,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5 Bd7 8. Qd3 {is now more promising than 8.Bxc6. B62: Sicilian: Richter-Rauzer: 6...e6: Unusual White 7th moves.} Be7 9. O-O-O {[#]} Qa5 $146 ({Predecessor:} 9... a6 10. Bxc6 bxc6 11. Nb3 d5 12. e5 Ng4 13. Bxe7 Qxe7 14. Qg3 f5 15. h3 Nh6 {1-0 (65) Sethuraman,S (2644)-Gupta,A (2612) chess.com INT 2020}) 10. Nb3 {White is slightly better.} Qc7 11. f4 a6 12. Bxc6 Bxc6 13. Rhe1 O-O-O 14. Nd4 h6 15. Bh4 g5 16. fxg5 Ng4 $1 17. h3 hxg5 {Hoping for ...Ne5.} 18. Nxc6 Qxc6 19. Bg3 Ne5 20. Bxe5 dxe5 21. Qf3 Rdf8 22. Rd3 Kb8 (22... Rh4 {with more complications.} 23. a3 Kb8 24. Kb1 f6 25. Qd1 Rfh8) 23. a3 f6 24. Kb1 Rc8 25. Red1 Rc7 26. Qe2 Rhc8 27. Qd2 Bc5 28. Na2 $2 (28. Rf1 $11) 28... Qxe4 $17 29. Rf1 Be7 30. Nc3 Qc4 {And now ...e4 would win.} 31. Re1 Qf4 32. Qd1 Qc4 $2 ({Black should try} 32... Qf2 $17 33. Re2 Qb6) 33. g4 (33. Qd2 $1 $11) 33... Qc6 34. Qd2 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 35. Rc1 b4 $36 {[%mdl 2048] Keeping White busy.} 36. Na2 $2 {White does not recover from this.} (36. axb4 $17 Bxb4 37. Qe2) 36... bxa3 $19 37. Nb4 $2 (37. b4 {might work better.}) 37... Qc4 38. Rb3 {Strongly threatening Nxa6+.} Rb7 39. Nd3 Rxb3 40. cxb3 Qxb3 41. Rxc8+ Kxc8 42. Ka1 axb2+ 43. Nxb2 Qxh3 44. Qc2+ Kd8 45. Qe4 Qf1+ 46. Ka2 Qb5 47. Qa8+ Kd7 48. Ka1 Bc5 {Black mates.} 49. Qg8 {[#]} Bd4 $1 {[%csl Gd4][%cal Rb5b2]} 50. Qf7+ Kd6 {[%csl Gd4][%cal Rb5b2]} 51. Qf8+ Kd5 {[%csl Gd4][%cal Rb5b2]} 52. Qa8+ Qc6 53. Qd8+ Ke4 54. Qh8 Qc1+ {[%mdl 64] [#] Double Attack} 55. Ka2 Qxb2# {Weighted Error Value: White=0.53/Black=0.23} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.2"]
[White "Huang, Renjie"]
[Black "Hong, Andrew"]
[Result "0-1"]
[ECO "C82"]
[WhiteElo "2422"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,82,0,0,0,-14,-12,-40,-41,-45,-49,-44,-42,-48,-43,-43,-34,-73,-81,-210,-230,-313,-308,-300,-293,-517,-514,-513,-511,-504,-496,-579,-542,-611,-610,-595,-583,-578,-565,-569,-556,-787,-761,-761,-734,-1549,-1950,-3166,-2766,-12839,-1667,-1417,-1497,-12845,-12845,-12846,-12846]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2 12. Rxf2 Bxf2+ 13. Kxf2 f6 14. exf6 Qxf6 15. Kg1 Rae8 {C82: Open Ruy Lopez: 9 c3 without 9...Be7.} 16. Nf1 Ne5 17. Ne3 Nxf3+ {Black is slightly better.} 18. Qxf3 Qxf3 19. gxf3 Rxf3 20. Bd2 Bh3 21. Re1 Ref8 22. Bd3 c5 {[#] And now ...d4 would win.} 23. Be2 $146 (23. Bf1 $17) ({Predecessor:} 23. Bf1 Bxf1 24. Rxf1 d4 25. Rxf3 Rxf3 26. cxd4 cxd4 27. Nf1 Rf6 28. b3 Kf7 29. a4 {0-1 (49) Oskooei,A-Ghari Zadeh,M Iran 1993}) 23... Rf2 $19 24. Bf1 ({Wrong is} 24. Nxd5 $2 Rg2+ 25. Kh1 Rxe2 $1 $19 {[%mdl 512]}) 24... Rxd2 25. Bxh3 Re8 {...Rd3 is the strong threat.} ({Less strong is} 25... Rxb2 26. Nxd5 Rxa2 27. Nb6 $19) 26. Nc2 $2 (26. Bd7 {was called for.} Re5 27. Bc6) 26... Rxe1+ {Black is clearly winning.} 27. Nxe1 Kf7 28. b4 c4 29. Nf3 Rc2 30. Be6+ Kf6 31. Bxd5 Rxc3 32. Kf2 Ra3 33. Ke2 Rxa2+ 34. Ke3 Rb2 35. Bb7 Rxb4 36. Bxa6 Rb3+ 37. Ke4 c3 {( -> ...c2)} 38. Nd4 {[#]} Rb2 (38... Rb4 $142 $1 39. Kd3 {[#]} Rxd4+ $1 {[%mdl 512]} 40. Kxc3 Rh4 41. Bxb5 Rxh2) 39. Kd3 b4 40. h4 Rd2+ 41. Ke3 {[#]} Rxd4 $1 {[%mdl 576] Promotion. White got outplayed after the opening.  Weighted Error Value: White=1.17/Black=0.30} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.2"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2414"]
[BlackElo "2588"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,83,16,10,10,13,23,0,34,24,37,21,22,21,14,16,36,9,31,0,14,7,54,45,45,45,45,45,45,21,31,27,45,45,56,55,54,11,20,2,2,2,25,25,54,32,56,52,45,41,210,210,324,254,693,741,736,701,817,762,722,647,2099,1983,1485,1407,29979,29980,29980,29981,29987,29988,29987,29988]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Rb1 $1 {[%mdl 4] is recently more successful than 7.Nf3.} Be7 {D35: Queen's Gambit Declined: Exchange Variation.} 8. Nf3 O-O 9. Bc4 a6 {The position is equal.} 10. a4 Qc7 {With the idea ...cxd4.} 11. Bd3 cxd4 12. cxd4 Nc6 13. O-O Nb4 {[#]} 14. Be2 $146 ({Predecessor:} 14. Ba3 Nxd3 15. Qxd3 Bxa3 16. Qxa3 Bd7 17. Ne5 Rfc8 18. Rfc1 Qd8 19. Nxd7 Qxd7 20. Qb2 Qxa4 21. Rxc8+ Rxc8 22. Qxb7 {½-½ (33) Akobian,V (2625)-Dominguez Perez,L (2739) Saint Louis 2019}) 14... Rd8 15. Qb3 a5 16. Be3 b6 17. Rfc1 Qb7 18. Ne5 Bd7 19. Nxd7 Rxd7 20. Bb5 Rdd8 21. f3 Bf6 22. Rc4 Rac8 23. Rbc1 h6 24. g3 Bg5 25. Kg2 Bxe3 26. Qxe3 Qb8 27. h4 Na2 28. Rxc8 {[%mdl 64] Overworked Piece} Rxc8 29. Rxc8+ Qxc8 30. d5 {[%cal Bd4d5,Bd5d6][%mdl 32]} Qc2+ $2 {This costs Black the game.} (30... exd5 $14 31. exd5 Qc2+ 32. Qf2 Nb4) 31. Qf2 $18 Qxf2+ (31... Nb4 $142) 32. Kxf2 {[%mdl 4096] Endgame KB-KN} e5 $2 (32... f6 33. d6 (33. dxe6 Kf8 $16) 33... Kf7) 33. d6 {And now d7 would win.} Kf8 34. Ke3 Nb4 35. Kd2 f6 {[#]} 36. f4 $1 Kf7 {[#]} 37. f5 $1 Kf8 38. Kc3 Na2+ 39. Kc4 {White mates.} Nb4 40. Bd7 Na2 41. Bc6 Nb4 42. Kb5 {Weighted Error Value: White=0.05/Black=0.56} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "2.3"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2414"]
[BlackElo "2588"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,65,18,10,22,0,11,0,0,0,0,0,29,19,33,18,35,50,81,18,72,52,60,75,79,64,80,33,84,88,268,202,204,75,212,64,65,58,95,56,128,114,138,137,245,242,374,353,597,594,584,554,872,862,884,863]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Rb1 $1 {[%mdl 4] is more profitable than 7.Nf3 at the moment.} Be7 {D35: Queen's Gambit Declined: Exchange Variation.} 8. Nf3 O-O 9. Bd3 cxd4 {The position is equal.} 10. cxd4 Nc6 11. Be3 {[#]} Nb4 $146 ({Predecessor:} 11... Qa5+ 12. Bd2 Bb4 13. Bxb4 Nxb4 14. O-O Nxd3 15. Qxd3 b6 16. Qd2 Bb7 17. Qxa5 {1-0 (17) Petrosyan,M (2607)-Pulpan,J (2407) chess.com INT 2020}) 12. Be2 b6 13. O-O Bb7 14. Qd2 Nc6 15. Rfd1 (15. d5 $16 exd5 16. exd5) 15... Na5 (15... Bf6 $11) 16. d5 $16 exd5 17. exd5 Bd6 18. Nd4 Rc8 ({Don't blunder} 18... Bxd5 $2 19. Nf5 $18) (18... Bxh2+ $2 19. Kxh2 Qxd5 20. Nf3 $18) 19. Nc6 Bxc6 ({Black should try} 19... Nxc6 $14 20. dxc6 {[%mdl 64] Discovered Attack} Rxc6) 20. dxc6 Bc7 $2 {[#]} (20... Be7 $16) 21. Bg4 Qxd2 22. Rxd2 (22. Bxd2 $18 {is the precise move to win.} f5 23. Bf3) 22... Rcd8 (22... Nc4 $16) 23. Bd7 ({Better is} 23. Rd7 $18 f5 24. Be2 (24. Rxc7 fxg4 25. Rxa7 Nxc6 $16)) 23... Nc4 $14 24. Rd3 Ne5 25. Rd5 Nxd7 ({Black should play} 25... f6 $14) 26. cxd7 $16 {Strongly threatening Rc1.} ({Worse is} 26. Rxd7 Rxd7 27. cxd7 Rd8 $17) 26... f6 27. Rc1 $36 {[%mdl 2048] White is in control.} Be5 (27... Bb8 $16 {was called for.} 28. Rc6 h6) 28. f4 $18 Bb2 (28... Bb8 {was necessary.} 29. Bd2 Kf7) 29. Rc7 Kf7 $2 (29... Ra8 {keeps fighting.} 30. Rd3 f5) 30. Rxa7 {White is clearly winning.} Ke6 31. Rd3 Rf7 32. Bxb6 Rdxd7 {[#]} 33. f5+ $1 {[%mdl 512] Weighted Error Value: White=0.29/Black=0.51} 1-0

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "3.1"]
[White "Hong, Andrew"]
[Black "Svane, Frederik"]
[Result "0-1"]
[ECO "B36"]
[WhiteElo "2449"]
[BlackElo "2421"]
[Annotator "RC"]
[PlyCount "120"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:02]} 2. Nf3 {[%emt 0:00:03]} g6 {[%emt 0:00:01]} 3. d4 {[%emt 0:00:09]} cxd4 {[%emt 0:00:01]} 4. Nxd4 {[%emt 0:00:04]} Nc6 {[%emt 0:00:01]} 5. c4 {[%emt 0:00:15]} Nf6 {[%emt 0:00:02]} 6. Nc3 {[%emt 0:00:12]} Nxd4 {[%emt 0:00:01]} 7. Qxd4 {[%emt 0:00:03]} d6 {[%emt 0:00:01]} 8. Bg5 {[%emt 0:01:04]} Bg7 {[%emt 0:00:02]} 9. Qd2 {[%emt 0:00:03]} Be6 {[%emt 0:00:13]} 10. Rc1 {[%emt 0:02:20]} Qa5 {[%emt 0:00:55]} 11. Bd3 {[%emt 0:01:07]} h6 {[%emt 0:01:15]} 12. Bf4 {[%emt 0:01:18]} Rc8 {[%emt 0:01:10]} 13. b3 {[%emt 0:00:43]} Nd7 {[%emt 0:03:28]} 14. O-O {[%emt 0:00:43]} Nc5 {[%emt 0:00:07]} 15. Bb1 {[%emt 0:00:24]} a6 {[%emt 0:00:36]} 16. Nd5 {[%emt 0:01:46]} Qxd2 {[%emt 0:00:06]} 17. Bxd2 {[%emt 0:00:03]} Bxd5 {[%emt 0:00:47]} 18. exd5 {[%emt 0:01:35]} Kd7 {[%emt 0:00:14]} 19. Bc2 {[%emt 0:00:45]} Kc7 {[%emt 0:01:35]} 20. Rfe1 {[%emt 0:00:16]} Bf6 {[%emt 0:00:17]} 21. b4 {[%emt 0:00:52]} Nd7 {[%emt 0:00:03]} 22. Ba4 {[%emt 0:00:09]} Ne5 {[%emt 0:00:31]} 23. Rc2 {[%emt 0:00:56]} Kb8 {[%emt 0:00:34]} 24. c5 {[%emt 0:00:36]} b5 {[%emt 0:02:30]} 25. Bb3 {[%emt 0:01:11]} Nd3 {[%emt 0:01:04]} 26. Re3 {[%emt 0:00:51]} dxc5 {[%emt 0:00:02]} 27. Rxd3 {[%emt 0:01:01]} c4 {[%emt 0:00:01]} 28. Bf4+ {[%emt 0:00:17]} Kb7 {[%emt 0:00:21]} 29. Rdd2 {[%emt 0:00:32]} cxb3 {[%emt 0:01:01]} 30. axb3 {[%emt 0:00:02]} g5 {[%emt 0:00:35]} 31. Be3 {[%emt 0:00:04]} Bc3 {[%emt 0:00:04]} 32. Re2 {[%emt 0:00:26]} Bxb4 {[%emt 0:00:02]} 33. h4 {[%emt 0:00:06]} gxh4 {[%emt 0:00:32]} 34. Kh2 {[%emt 0:00:06]} Rxc2 {[%emt 0:00:52]} 35. Rxc2 {[%emt 0:00:03]} Rc8 {[%emt 0:00:02]} 36. Rb2 {[%emt 0:00:20]} Rc3 {[%emt 0:00:11]} 37. Bxh6 {[%emt 0:00:24]} Bd6+ {[%emt 0:00:07]} 38. Kg1 {[%emt 0:00:02]} Rd3 {[%emt 0:00:23]} 39. f4 {[%emt 0:00:09]} Rxd5 {[%emt 0:00:10]} 40. Kf2 {[%emt 0:00:05]} Rh5 {[%emt 0:00:32]} 41. Bf8 {[%emt 0:00:15]} Rh8 {[%emt 0:00:06]} 42. Bg7 {[%emt 0:00:03]} Rg8 {[%emt 0:00:01]} 43. Be5 {[%emt 0:00:22]} Bxe5 {[%emt 0:00:17]} 44. fxe5 {[%emt 0:00:01]} a5 {[%emt 0:00:12]} 45. Rd2 {[%emt 0:00:13]} Kc6 {[%emt 0:00:27]} 46. Ra2 {[%emt 0:00:03]} Ra8 {[%emt 0:00:05]} 47. Kf3 {[%emt 0:00:04]} a4 {[%emt 0:00:05]} 48. bxa4 {[%emt 0:00:07]} bxa4 {[%emt 0:00:02]} 49. Ke4 {[%emt 0:00:13]} Kc5 {[%emt 0:00:07]} 50. Rc2+ {[%emt 0:00:03]} Kb4 {[%emt 0:00:02]} 51. Rc7 {[%emt 0:00:42]} a3 {[%emt 0:00:02]} 52. Rb7+ {[%emt 0:00:01]} Kc3 {[%emt 0:00:05]} 53. Rc7+ {[%emt 0:00:01]} Kd2 {[%emt 0:00:05]} 54. Rxe7 {[%emt 0:00:27]} a2 {[%emt 0:00:02]} 55. Rxf7 {[%emt 0:00:06]} a1=Q {[%emt 0:00:04]} 56. Rf2+ {[%emt 0:00:02]} Kc3 {[%emt 0:00:03]} 57. Re2 {[%emt 0:00:22]} Qd1 {[%emt 0:00:05]} 58. Re3+ {[%emt 0:00:05]} Kc4 {[%emt 0:00:01]} 59. Kf5 {[%emt 0:00:08]} Rf8+ {[%emt 0:00:02]} 60. Kg5 {[%emt 0:00:11]} Qd2 {[%emt 0:00:02]} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "3.1"]
[White "Pour Agha Bala, Amirreza"]
[Black "Cardoso Cardoso, Jose Gabriel"]
[Result "1/2-1/2"]
[ECO "B87"]
[WhiteElo "2432"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "244"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,244,0,0,6,-4,0,0,0,-14,0,-71,-26,-31,-7,0,0,0,0,0,0,-14,11,0,14,-21,-20,-41,-11,-41,-25,-62,-52,-54,-45,-70,-47,-42,-41,-79,-65,-75,-66,-61,-52,-45,-7,-7,-6,-6,0,-29,-43,-28,-16,-11,3,-20,0,0,0,0,50,0,12,9,20,0,0,0,0,0,0,0,87,0,96,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,25,18,27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,149,58,85,12,14,14,65,0,0,0,0,0,23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. O-O Be7 8. Bb3 O-O 9. Be3 b5 10. f3 Bb7 {B87: Sicilian Scheveningen/Najdorf: 6 Bc4, with early ...b5.} 11. Qd2 Nbd7 12. Rad1 Nc5 13. Qf2 Qc7 14. Rfe1 (14. Qg3 $11) 14... Rac8 {[#]} 15. Qg3 $146 ({Predecessor:} 15. Rc1 Rfe8 16. Nde2 Qb8 17. Nf4 Kh8 18. Nd3 Nxb3 19. axb3 Kg8 20. Ba7 Qc7 21. Bb6 {1-0 (49) Licayan,A-Reams,C Paris 1993}) 15... Kh8 16. a3 Rfe8 17. Ba2 Bf8 18. Bg5 Be7 19. Be3 Ba8 20. Nce2 d5 (20... Bf8 {is interesting.} 21. Nc3 Bb7) 21. Qxc7 (21. e5 {keeps more tension.} Nfd7 22. b4 Na4 23. f4 g6 24. Bf2) 21... Rxc7 22. exd5 Nxd5 23. Bc1 Rcc8 24. c3 Bh4 25. g3 Bf6 26. Kf2 g6 27. Nb3 Na4 28. Nbd4 Kg7 29. Nc2 Be7 30. Bb3 Bc5+ 31. Kg2 Nab6 32. Nf4 a5 33. Nxd5 Nxd5 34. Bxd5 Bxd5 35. Be3 {White wants to play Rxd5!} Bb3 36. Rd2 e5 37. Kf2 Re7 38. Bxc5 Rxc5 39. f4 e4 40. Ne3 (40. Nd4 $5 {[%cal Rd4b3]} Bc4 41. g4 $11) 40... f5 41. Rd4 Rb7 42. Re2 Be6 43. Red2 Kf7 44. Ke2 h6 45. h4 Kf6 (45... Rc6 $11 {keeps the balance.}) 46. Kf2 (46. Rd6 $16) 46... g5 {[#]} (46... Kf7 $11) 47. hxg5+ (47. Rd6 $1 $16) 47... hxg5 $11 48. fxg5+ Kxg5 49. Rd6 Bc4 50. Rd7 Rxd7 51. Rxd7 {[%mdl 4096] Endgame KRB-KRN} Be6 52. Rd6 Kf6 53. Rb6 Ke7 54. Ng2 Bc4 55. Nf4 Rc7 56. Ng6+ Kd8 $1 57. Rf6 Rh7 58. Ne5 Rh2+ 59. Ke3 Re2+ 60. Kd4 Rd2+ 61. Ke3 {Cut Off at move 61} Re2+ 62. Kd4 Rf2 63. g4 e3 {[%mdl 64] [#] Decoy} 64. Kxe3 Re2+ 65. Kf4 Ba2 (65... fxg4 $11 66. Rd6+ Kc7 67. Rc6+ Kb7) 66. Rxf5 (66. gxf5 $16 Rxb2 67. Ra6) 66... Rxb2 $14 67. Rf8+ (67. g5 $16) 67... Kc7 $1 $11 68. Ra8 Bd5 ({Black should play} 68... a4 $11) 69. Rh8 (69. Ra7+ $14 Kb6 70. Rd7) 69... Rb3 70. Ke3 {Kd4 is the strong threat.} Rxa3 71. Kd4 {aiming for Rh7+.} Be6 72. Kc5 {Strongly threatening Rh7+.} Rxc3+ {The position is equal.} 73. Kxb5 Kd6 74. Ng6 Bd7+ 75. Kxa5 Kc5 {[%cal Rc3a3]} 76. Rh5+ Kd6 77. Ne5 Be8 78. Rg5 Rb3 79. Nc4+ (79. Rf5 {looks sharper.} Rb5+ 80. Ka6 Rxe5) 79... Kc6 80. Re5 Bf7 81. Nd2 Rb2 82. Ne4 Bd5 83. Nc3 Bc4 84. Rc5+ {[%mdl 64] Decoy} Kxc5 85. Na4+ {[%mdl 64] Double Attack} Kd4 {( -> ...Rb3)} 86. Nxb2 {KB-KN} Be6 87. g5 Ke5 88. g6 Kf6 89. g7 Kxg7 (89... Bg8 {with more complications.} 90. Nd3 Bh7 91. Kb6 Kxg7 92. Ne5 Be4) 90. Nc4 Kf6 91. Ne5 Kf5 92. Nd7 Bg8 93. Nf6 Bf7 94. Nd5 Ke5 95. Ne3 Be6 96. Ng4+ Kd4 97. Nf6 Kc5 98. Nd7+ Kd6 99. Ne5 Bd5 100. Nd3 Be4 101. Nf4 Bf5 102. Ne2 Ke5 103. Nd4 Be4 104. Nc6+ Kd6 105. Nb4 Bf5 106. Nd3 Bh7 107. Ne5 Bf5 108. Nf7+ Kd5 109. Ng5 Bg4 110. Nf3 Bh5 111. Nd2 Be8 112. Ne4 Bg6 113. Nc3+ Kc4 114. Ne2 Bd3 115. Nd4 Be4 116. Ne6 Bf5 117. Nf4 Be4 118. Nd5 Kd4 119. Ne3 Bd3 120. Nf5+ Ke5 121. Ng3 Kf4 122. Kb4 Kxg3 {Weighted Error Value: White=0.14/Black=0.16} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "3.1"]
[White "Svane, Frederik"]
[Black "Hong, Andrew"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2421"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "209"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,208,16,36,35,29,35,42,43,48,45,53,53,56,42,49,47,50,29,70,27,100,100,96,49,54,54,83,0,6,0,0,0,6,0,7,6,8,0,14,16,18,21,22,0,25,0,29,0,17,0,54,14,14,0,0,0,39,39,39,39,39,39,51,41,131,131,160,113,113,113,113,113,113,96,114,80,80,43,46,0,0,0,0,0,12,12,12,12,12,12,12,12,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 O-O 8. O-O d5 9. exd5 cxd5 10. Bg5 c6 11. Qf3 h6 12. Bxf6 Qxf6 13. Qxf6 gxf6 14. Ne2 Bd6 15. Nd4 {C47: Scotch Four Knights and Four Knights with 4 g3.} c5 16. Nf5 Bxf5 17. Bxf5 {White is slightly better.} Be5 18. Rad1 Rfd8 19. b3 a5 {[#]} 20. g3 $146 ({Predecessor:} 20. Bd3 a4 21. Bb5 axb3 22. axb3 Ra2 23. Bd3 Rda8 24. g3 Ra1 25. Rxa1 Rxa1 26. Rxa1 Bxa1 {½-½ (35) Liu,C (2345)-Xiang,Z (2402) Beijing 2017}) 20... a4 21. Rfe1 c4 22. Kg2 Kf8 23. Re2 Bc3 (23... cxb3 $11 24. cxb3 axb3 25. axb3 Bc3) 24. bxc4 $16 dxc4 25. Rxd8+ Rxd8 {[%mdl 4096] Endgame KRB-KRB} 26. Re4 Bd4 27. c3 (27. g4 $16) 27... Bb6 $11 {With the idea ...Rd2.} 28. Kf1 Rd5 29. g4 Rc5 30. Ke1 Ba5 31. Kd2 a3 32. h4 Bc7 33. h5 Bd6 34. Rd4 Ke7 35. Re4+ Kd8 36. Rd4 Ke7 37. Re4+ Kf8 38. Rd4 Be7 (38... Ke7 $11) 39. Be4 Rb5 40. Rxc4 Rb2+ 41. Kd3 Bd6 42. Bd5 Rxf2 43. Rc8+ Ke7 44. Ra8 Bc5 45. Kc4 Bb6 ({Black should play} 45... Be3 $14) 46. Rxa3 $16 f5 47. gxf5 Rxf5 48. Rb3 Bc7 49. Kc5 Kd7 50. c4 Rxh5 51. Rf3 f5 52. a4 f4 53. a5 Bxa5 {The position is equal.} 54. Rxf4 Bd8 55. Kd4 Rh2 56. Rf7+ Be7 57. c5 Rd2+ 58. Ke5 Re2+ 59. Be4 Ke8 60. Rh7 Bxc5 61. Rxh6 {Cut Off at move 61} Bf8 62. Ra6 Bg7+ 63. Kf5 (63. Kd5 {keeps more tension.} Ke7 64. Ra7+ Kf6 65. Kd4 Re1 66. Kd3) 63... Bd4 64. Rd6 Bc5 65. Rc6 Be7 66. Ke5 Kd7 67. Rc2 Re1 68. Rd2+ Kc7 69. Rc2+ Kb6 70. Rb2+ Kc5 71. Rc2+ Kb4 72. Rc7 Bc5 73. Rb7+ Kc4 74. Rc7 Rd1 75. Rc8 Rd7 76. Bf5 Rd5+ 77. Ke4 {[#] Hoping for Be6.} Rd6 78. Ke5 Rb6 79. Be6+ Kb4 80. Bd5 Rh6 81. Rb8+ Bb6 82. Be6 Kc5 83. Rc8+ Kb5 84. Rc2 Rh5+ 85. Ke4 Bc5 86. Bd5 Rh3 87. Rb2+ Bb4 88. Kd4 Ka4 {[#] White must now prevent ...Bc3+.} 89. Ra2+ Kb5 90. Rb2 Rc3 91. Rb1 Rc2 92. Be4 Rc4+ 93. Kd5 {Bd3! would kill now.} Rc3 94. Kd4 Ra3 95. Bd3+ Ka5 96. Kc4 Rc3+ 97. Kd4 Ra3 98. Kc4 Rc3+ 99. Kd4 Rc8 100. Ra1+ Kb6 {Threatens to win with ...Bc3+.} 101. Rb1 Rd8+ 102. Kc4 Ka5 103. Rxb4 Rc8+ 104. Kb3 Rc3+ 105. Kxc3 {Weighted Error Value: White=0.14/Black=0.13} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "3.1"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Pour Agha Bala, Amirreza"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "2414"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,134,41,0,12,14,10,-8,-2,-7,-7,-50,-20,-13,0,-45,-40,-48,-43,-68,-69,-70,-71,-68,-65,-105,-102,-109,-110,-161,-93,-104,-114,-110,-45,-39,-23,-15,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,22,8,15,5,4,5,7,0,0,0,0,0,0,0,7,-82,-80,-47,-35,-31,0,0,0,0,0,-8,0,0,0,-238,-231,-466,-457,-457,-435,-1213,-1087,-1220,-1166,-2070,-1768,-4057,-2045,-29976,-29979,-29979,-29980,-29982,-29983,-29985,-29985,-29985,-29986,-29986,-29987,-29987,-29988,-29987,-29984,-29990,-29991,-29997,-29992,-29993,-29993,-29993,-29991]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Nf3 c5 7. Be3 Qa5 8. Qd2 cxd4 {E90: King's Indian: Classical: Early deviations and 6 h3.} 9. Nxd4 Nc6 {aiming for ...Nxd4.} 10. Nb3 Qb4 {[#] The position is equal.} 11. Rc1 $146 ({Predecessor:} 11. f4 Be6 12. Be2 Bxc4 13. O-O Bxe2 14. Qxe2 Nxe4 15. Nd5 Qa4 16. Kh2 e6 17. Nc7 {0-1 (50) Kozlovskaya,V (2155)-Malachi,A (2097) Porto 2014}) 11... Be6 12. Nd5 Qa4 (12... Qxd2+ {is interesting.} 13. Nxd2 Rfc8 14. a3 Nd7 15. Rb1 Bxd5 16. exd5 Nd4) 13. Nc3 Qb4 14. Nd5 Qxd2+ 15. Nxd2 Rfc8 16. Nf4 Nd7 17. Nxe6 fxe6 18. Rb1 Nb4 19. a3 Nc2+ 20. Ke2 Nxe3 21. Kxe3 {[#]} (21. fxe3 $17 {keeps fighting.} Nc5 22. b3) 21... Nc5 (21... Bh6+ $1 $19 22. Ke2 {[#]} b5 $1 {[%mdl 512]}) 22. Bd3 Bh6+ 23. Ke2 Bxd2 (23... Nxd3 $17 24. Kxd3 Bxd2 25. Kxd2 Rxc4) 24. Kxd2 $15 e5 25. b4 Ne6 26. c5 Nd4 27. Rhc1 Kf8 28. cxd6 exd6 29. Bc4 Rc7 30. Bd5 Rac8 31. Rxc7 Rxc7 32. Rc1 Rxc1 33. Kxc1 $11 {[%mdl 4096] Endgame KB-KN} b6 34. Kd2 Nb5 35. Bc4 Nc7 36. g3 g5 37. Ke3 Kg7 38. f4 gxf4+ 39. gxf4 Kf6 40. f5 Kg5 41. Bf7 Kh4 42. f6 (42. Kd3 $11 {remains equal.}) 42... Kg5 $17 43. Bg8 Kxf6 (43... Kg6 {is more complex.} 44. f7 Ne6 45. h4 Kg7 46. a4 Nf4) 44. Bxh7 Kg5 45. Kd3 Kf4 46. Bg6 Kg5 47. Bh7 Ne8 48. Bg8 Nf6 49. Be6 $2 {White is now going downhill.} (49. Bf7 $1 $11 {and White stays safe.}) 49... Kf4 $19 50. h4 $2 (50. Bf5 {was forced.}) 50... Nxe4 51. h5 {and if h6 works, White does fine.} Nf6 52. h6 (52. Bf7 $142 Kg5 53. Kc4) 52... Kg5 53. Kc4 Kxh6 54. Kb5 Kg5 55. Ka6 e4 56. Kxa7 d5 {Black mates.} 57. Bh3 d4 58. Kxb6 d3 59. Bf1 Kf4 60. a4 Ke3 61. a5 {Cut Off at move 61} d2 62. a6 d1=Q 63. a7 Qa4 64. Ba6 Nd5+ 65. Kb7 Qxb4+ 66. Kc8 Nb6+ 67. Kb7 Kf2 {Weighted Error Value: White=0.59/Black=0.23} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "4.1"]
[White "Pour Agha Bala, Amirreza"]
[Black "Svane, Frederik"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "2432"]
[BlackElo "2421"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,82,3,24,0,3,3,16,8,6,0,12,12,0,0,3,-17,-19,-22,-16,-17,-4,-3,-15,-25,-20,-24,0,-27,-18,-20,-23,-25,-27,-103,-82,-207,-216,-201,-212,-211,-211,-620,-619,-612,-595,-622,-820,-681,-430,-450,-420,-423,-358,-449,-450,-705,-295,-489,-489,-764,-431,-491,-486,-570,-468,-662,-662,-29973,-29971,-29977,-29974,-29989,-29990]} 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 d6 6. Nc3 Bf5 {6...e6 is a critical line.} 7. d3 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} Qd7 8. Rb1 Nf6 9. a3 {The position is equal.} Bh3 10. b4 Bxg2 11. Kxg2 O-O {[#]} 12. b5 $146 ({Predecessor:} 12. e4 Ng4 13. Ne2 Nge5 14. Nxe5 Nxe5 15. Bb2 cxb4 16. axb4 b5 17. Bxe5 Bxe5 18. d4 {0-1 (47) Belous,V (2524)-Svidler,P (2723) chess.com INT 2020}) 12... Nd4 13. Nd2 d5 14. a4 Rfd8 15. Bb2 h5 16. cxd5 Nxd5 17. Nce4 Rac8 18. Nc4 Qf5 19. Qd2 {[#]} h4 $1 {[%mdl 512]} 20. f3 (20. gxh4 Nf4+) 20... Nb6 21. Nxb6 axb6 22. Bxd4 (22. e3 $11 h3+ 23. Kh1) 22... Rxd4 23. a5 {Now White is beyond hope.} (23. gxh4 $17 {was necessary.} Rxa4 24. Qg5) 23... h3+ $19 24. Kh1 bxa5 25. Qxa5 c4 26. Qb6 $2 (26. Qa3 cxd3 27. exd3) 26... cxd3 27. exd3 Qd5 28. Rbe1 Rxd3 {aiming for ...Bd4.} 29. Qf2 Qxb5 30. g4 Qe5 31. Qh4 Qf4 32. Qxh3 b5 {[%cal Bb7b5,Bb5b4,Bb4b3,Bb3c2][%mdl 32]} 33. Rb1 {[#]} (33. g5 $142 Rc2 34. Rf2) 33... Rb8 (33... Qxe4 $142 $1 {[%mdl 512]} 34. Rxb5 (34. fxe4 Rxh3) 34... Qc6) 34. Rb4 $2 (34. Qg3 {was worth a try.} Qxg3 35. hxg3) 34... Bc3 35. Rbb1 (35. Nf2 $142 Qxf3+ 36. Qxf3 Rxf3 37. Re4) 35... b4 {Strongly threatening ...Qxe4!} 36. Kg2 b3 37. Qh4 Bf6 38. Qf2 (38. Qg3 $142 Qxg3+ 39. Nxg3) 38... Rc8 {Hoping for ...Rc2!} 39. Rfe1 {[#]} Rc2 $1 {Black mates.} 40. Re2 Bd4 41. Rxc2 bxc2 {Weighted Error Value: White=0.72/Black=0.48} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "4.1"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Hong, Andrew"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2414"]
[BlackElo "2449"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,103,25,34,27,20,33,0,2,0,0,0,10,7,0,7,13,12,22,22,35,29,31,23,34,25,34,25,23,-5,19,17,16,19,15,9,9,9,64,27,61,0,41,20,24,12,14,8,30,0,30,16,66,44,51,20,26,42,439,155,251,239,250,236,232,222,768,766,618,368,294,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. b3 Nc6 8. Bb2 cxd4 9. Nxd4 Nxd4 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} 10. Bxd4 Bd7 {[#]} 11. Qe2 $146 ({Predecessor:} 11. Nd2 Be7 12. Be2 Bc6 13. Nc4 O-O 14. Qc2 Rc8 15. Qb2 Bc5 16. Rfd1 Bxd4 17. Rxd4 {1-0 (32) Dreev,A (2644)-Abreu Delgado,A (2450) Merida 2015}) 11... Rc8 12. Rd1 Bc5 13. Bb2 Qe7 14. a3 O-O 15. b4 Ba7 16. Nd2 Bc6 17. a4 Bb8 18. b5 axb5 19. axb5 Bd5 20. Bd3 {Black must now prevent e4.} e5 $1 21. e4 Be6 22. h3 Bd6 23. Nc4 Bxc4 24. Bxc4 Bc5 25. g3 Rfd8 26. Kg2 h5 (26... g6 $11) 27. Bb3 h4 28. Rac1 (28. gxh4 $14 Bd4 29. Ba3) 28... Ba3 29. Rxc8 Rxc8 30. Ba1 hxg3 31. fxg3 Bb4 32. Qd3 b6 33. Bb2 Kh7 34. Qf3 Kg8 35. Qf5 Rc5 36. g4 Rc7 $2 {[%mdl 8192]} (36... Qc7 $1 $14 37. Ra1 Rc2+ 38. Bxc2 Qxc2+ 39. Qf2 Qxe4+ 40. Kh2 Bc5) 37. Qxe5 $2 (37. g5 $18 {and the rest is easy.} Nxe4 38. g6) 37... Ne8 (37... Qxe5 $16 38. Bxe5 Rd7) 38. Qxe7 $18 Rxe7 39. Kf3 Nd6 40. e5 Nxb5 $2 (40... Nb7 41. Bd5 Nc5) 41. Rd8+ Kh7 42. Bc2+ g6 {[#]} 43. Rd5 $2 ({White must play} 43. e6 $1 $18 {[%csl Gb2][%cal Rd8h8][%mdl 512]} Bc3 (43... Rxe6 44. Rh8#) 44. Bxc3 Nxc3 45. Rd3) 43... Nc7 $1 $132 {[%cal Rc7d5][%mdl 2048] Black puts up resistance. The position is equal.} 44. Rd8 {aiming for e6!} Ne6 45. Rb8 Rc7 46. Bb3 ({Don't blunder} 46. Rxb6 $2 Ng5+ 47. Kg3 Be1+ 48. Kg2 Rxc2+ $19) 46... Bc3 47. Bxe6 {Threatens to win with Bxc3.} Bxb2 48. Bd5 Bxe5 {And now ...Rc3+ would win.} 49. Rxb6 Kg7 50. h4 Bc3 51. Rc6 Rxc6 52. Bxc6 {Black defended with fortune.  Weighted Error Value: White=0.42/Black=0.26} 1/2-1/2

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "4.2"]
[White "Hong, Andrew"]
[Black "Cardoso Cardoso, Jose Gabriel"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2449"]
[BlackElo "2414"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,78,29,26,15,17,19,39,8,13,0,26,2,-10,-25,-37,-36,0,-48,-1,-3,-6,-8,0,-3,-8,-10,0,0,3,0,0,-9,-2,-8,-3,-3,-2,-3,0,-9,-10,-462,-471,-619,-674,-663,-661,-608,-591,-29970,-29972,-29969,-29970,-29990,-29991,-29991,-29992,-29992,-29993,-29993,-29994,-29994,-29995,-29995,-29996,-29996,-29997,-29997,-29998]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 a6 6. O-O Nc6 7. Bg5 {E04: Open Catalan: 5 Nf3.} Be7 8. e3 Bd7 {The old main line.} 9. Qc1 {[%mdl 1024] White has compensation.White is slightly better.} b5 {[#]} 10. Rd1 $146 ({Predecessor:} 10. Nbd2 Nd5 11. Bxe7 Ncxe7 12. e4 Nb6 13. b3 O-O 14. Rd1 cxb3 15. Nxb3 a5 16. Nc5 {1-0 (63) Postny,E (2638)-Perez Candelario,M (2575) Istanbul 2012}) 10... Rb8 11. Nc3 O-O 12. Ne5 Nxe5 13. dxe5 Nd5 (13... Ng4 {with more complications.} 14. Bf4 Qc8 15. Bf3 f5 16. exf6 Nxf6 17. a4 b4) 14. Bxd5 exd5 (14... Bxg5 {is interesting.} 15. Be4 Qe8 16. Qc2 h6 17. Ne2 c5) 15. Bxe7 Qxe7 16. Nxd5 Qxe5 {Strongly threatening ...Bg4.} 17. Qc3 Qxc3 18. bxc3 {Black must now prevent Ne7+.} Rfd8 19. Nxc7 Bg4 20. Rd4 Rxd4 21. exd4 $11 {[%mdl 4096] Endgame KRB-KRN} a5 22. a3 Rb7 23. Re1 {[%cal Re1e8]} (23. Na6 {feels hotter.} Bf3 24. Re1 Kf8 25. Re3 Bc6 26. Nc5) 23... h5 24. Na6 Rb6 25. Nc7 Bf3 26. Rb1 $2 {[%mdl 8192] [#] This costs White the game.} (26. Re8+ $11 Kh7 27. Re3) 26... b4 $1 $19 {[%cal Rb4c3][%mdl 512]} 27. axb4 axb4 28. cxb4 c3 29. b5 {[#] Hoping for Rc1.} Rb7 $1 30. Na6 c2 {[%cal Rc2b1] Black mates.} 31. Rc1 Rxb5 32. Nc5 {[#]} Rb1 $1 {[%cal Rb1c1][%mdl 512]} 33. Nd3 Be4 34. d5 Bxd3 35. d6 Rxc1+ 36. Kg2 Rd1 37. d7 Bf1+ {[%mdl 64] Discovered Attack} 38. Kf3 c1=Q 39. d8=R+ Rxd8 {Accuracy: White = 63%, Black = 86%.} 0-1

[Event "FIDE Online-ch U16 Open 2020"]
[Site "Online"]
[Date "2020.12.19"]
[Round "4.2"]
[White "Svane, Frederik"]
[Black "Pour Agha Bala, Amirreza"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2421"]
[BlackElo "2432"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.12.19"]
[EventType "k.o."]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,115,63,28,34,42,50,52,54,51,52,61,64,55,52,44,50,42,44,41,51,44,44,29,49,45,50,49,73,68,60,42,108,104,93,0,103,49,44,44,44,37,117,114,116,106,118,64,74,72,186,102,130,112,144,61,101,55,66,66,66,67,136,137,284,277,559,554,493,254,514,272,955,927,29989,29990,29990,29991,29991,29992,29992,29993,29993,29993,29993,29992,29992,0,29993,29994,29994,29992,29992,29993,29993,29994,29994,29995,29995,29996,29996,29997,29997,29998]} 1. e4 c5 2. Nf3 e6 3. c4 a6 4. Nc3 Qc7 5. Be2 Nf6 6. O-O b6 7. d4 cxd4 8. Nxd4 Bb7 {B41: Sicilian: Kan Variation: 5 c4.} 9. f3 Bd6 10. Kh1 Be7 {White is slightly better.} 11. Be3 d6 12. Qd2 Nbd7 13. Rac1 O-O 14. Rfd1 Rac8 15. Bf1 Rfd8 16. Qf2 {[#]} Qb8 $146 ({Predecessor:} 16... Ba8 17. b4 Qb8 18. Nb3 Re8 19. Na4 Bd8 20. Qg3 Bc7 21. Bh6 g6 22. Qh4 Bd8 {0-1 (76) Wieth,K (1979)-Umetsubo,C (2370) Florianopolis 2016}) 17. a3 Re8 18. b4 Bd8 19. Nb3 Bc7 20. Qg1 h5 21. Bf2 g6 22. Bg3 Kg7 ({Black should try} 22... d5 $1 $14) 23. Qd4 Ne5 24. Qe3 (24. Na4 $16) 24... Rh8 (24... d5 $1 $11) 25. Bxe5 (25. Bh4 $16) 25... dxe5 $14 26. c5 b5 27. a4 Bc6 (27... bxa4 $14 28. Na1 Ng8) 28. axb5 $16 axb5 29. Qe2 h4 30. Ra1 (30. Nxb5 $6 Bxb5 31. Qxb5 Qxb5 $11) (30. Qf2 $16) 30... Nh5 $1 $14 {[%cal Rh5g3] And now ...Ng3+! would win.} 31. Kg1 ({Don't blunder} 31. Nxb5 $2 Ng3+ $1 {[%mdl 512]} 32. Kg1 Nxe2+ $19) 31... Nf4 {[#]} (31... Ng3 $16 32. Qf2 (32. hxg3 hxg3 33. Rac1 Rh1+ {[%mdl 64] Decoy, Clearance} 34. Kxh1 Rh8+ 35. Kg1 Rh1+ {[%mdl 64] Decoy, Clearance} 36. Kxh1 Qh8+ 37. Kg1 Qh2#) 32... Nxf1) 32. Qe3 (32. Qa2 $1 $18) 32... Qb7 33. Na5 $36 {[%mdl 2048] Black is under strong pressure.} Bxa5 34. bxa5 (34. Rxa5 $16 {[%cal Rc3b5]} Ra8 35. Rxa8 Rxa8 36. Qd2) 34... Qe7 35. Ne2 ({Worse is} 35. Nxb5 Bxb5 36. Bxb5 Qg5 $17) 35... Qg5 {Strongly threatening ...Nh3+.} 36. Nxf4 exf4 37. Qc3+ e5 {[#] White now steadily converts the win.} ({Better is} 37... Qf6 $1 $14 38. Qxf6+ Kxf6) 38. h3 $1 $16 b4 (38... Qe7 $16 39. Rdb1 Bd7) 39. Qxb4 $18 f5 $2 (39... Rb8 {keeps fighting.} 40. Qc3 Rhc8) 40. Rd6 Ba8 {Black hopes to continue with ...fxe4.} 41. Bd3 (41. exf5 $142 gxf5 42. Rad1) 41... Rhe8 $2 (41... fxe4 42. Bxe4 Bxe4) 42. Re1 Qg3 $2 (42... fxe4 43. Bxe4 Bxe4) 43. exf5 g5 44. f6+ Kh8 45. Rd7 e4 46. Rxe4 Bxe4 47. Bxe4 Re6 48. Rh7+ Kg8 49. Rg7+ Kh8 50. Rh7+ Kg8 51. f7+ {White mates.} Kf8 52. c6+ Re7 53. Rh8+ Kxf7 54. Rh7+ Kg8 55. Qc4+ Kf8 56. Rh8+ Kg7 57. Qd4+ Kf7 58. Rh7+ {Weighted Error Value: White=0.27/Black=0.42} 1-0

