[Event "4th New Chess Brains GM"] [Site "Hamburg GER"] [Date "2020.03.09"] [Round "3.4"] [White "Ernst, S."] [Black "Kollars, Dmitrij"] [Result "0-1"] [ECO "E00"] [WhiteElo "2554"] [BlackElo "2592"] [Annotator "Yip"] [PlyCount "96"] [EventDate "2020.03.08"] [EventType "tourn"] [EventRounds "9"] [EventCountry "GER"] [EventCategory "9"] [SourceTitle "TWIC 1326"] [Source "Mark Crowther"] [SourceDate "2020.04.06"] [SourceVersion "1"] [SourceVersionDate "2020.04.06"] [SourceQuality "2"] {[%evp 20,96,53,0,24,-13,80,0,38,0,35,-31,-21,-16,-8,-47,-13,-46,-13,-49,-7, -40,-13,-83,-60,-122,-64,-85,-46,-70,-64,-85,-86,-97,-87,-84,-83,-91,-91,-119, -76,-181,-158,-168,-108,-185,-178,-196,-186,-234,-228,-289,-282,-301,-262,-324, -254,-243,-191,-280,-196,-361,-252,-815,-815,-763,-752,-863,-844,-923,-907, -888,-885,-802,-894,-1161,-1282,-946,-952]} 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. Bf4 Be6 {E01: Catalan: Early deviations} 12. Nbd2 Rc8 {[#]} (12... O-O $11 { keeps the balance.}) 13. Ne5 (13. Rc1 $1 $16) 13... Nxe5 {The position is equal.} 14. Bxe5 Ng4 15. Bf4 $146 (15. Bxg7 Rg8 $15) ({White should try Predecessor:} 15. Re1 $14 Nxe5 16. Rxe5 O-O 17. Bd5 Bd7 18. Qb3 Bf6 19. Ree1 b6 20. Rad1 Bg4 21. f3 {1/2-1/2 (37) Brzoza,M (2204)-Ramsden,J (1846) ICCF email 2011}) 15... g5 $15 16. Re1 $1 {[%CAl Re1e6]} O-O 17. Be5 $1 ({Much worse is} 17. Bxb7 gxf4 18. Rxe6 Nxf2 $17) 17... Rc5 18. Nf3 Nxe5 ({Reject} 18... Rxc4 $6 19. Bxd4 Bc5 20. Bxc5 $14) 19. Nxe5 d3 (19... Bf6 20. Nd3 Rxc4 $11) 20. Nxd3 $11 Rxc4 21. Re3 $6 {Black now gets some pressure on the d<-> using a pin} (21. Ne5 Rd4 22. Qh5 Bc5 $132) 21... Rd4 22. Qf3 {The makes a threat on the queenside but is herself rather vulnerable} b6 23. Ne5 {[#] Threatening Nc6 but clearing the d<-> helps Black} (23. Rae1 Bf6 24. h3 Kg7 $15) 23... g4 $1 { [%CAl Rg4f3] Black is the first to make threats} 24. Qe2 {Threatens to win with Nc6.} (24. Nc6 $2 gxf3 25. Nxd8 Rfxd8 26. Bxf3 $19 {wins a piece}) 24... Rd2 {Improves the rook with tempo to keep up the momentum} 25. Qe1 {Black must now prevent Nc6.} Bf6 ({But not} 25... Rxb2 $6 26. Rd1 $11) 26. Re2 $6 (26. Nc6 Qd7 27. Re2 Rd6 28. Ne5 Qb5 29. b3 Rc8 $15) 26... Rxe2 27. Qxe2 Qd4 $1 $36 { [%mdl 2048] A nice double attack using the a1-h8 diagonal} 28. Nc6 Qxb2 29. Qxb2 Bxb2 30. Rb1 (30. Rd1 $17 {was the only defense.}) 30... Ba3 $17 (30... Bf6 $17 {is also good}) 31. Nxa7 {[#]} Bc5 (31... Rd8 $1 {Bringing the last piece into play was winning} 32. Nb5 Bc5 $19 {Threatening simply ..Rd2} 33. Rb2 Rd1+ 34. Bf1 Bc4 $19) 32. Nc6 (32. Rd1 $17) 32... Bxa2 $19 {The extra pawn plus the bishop pair in support is decisive} 33. Rd1 Re8 34. Bd5 (34. h3 $142) 34... Re2 35. Bxa2 Rxa2 {[%mdl 4096] Endgame KRB-KRN} 36. Nd4 h5 37. Kf1 {[#]} b5 $1 {[%CAl Bb6b5,Bb5b4,Bb4b3,Bb3b2][%mdl 544] The passer can be pushed but there is more than one good move} (37... Kg7 38. Rd3 b5 $19) (37... f5 38. Kg2 Kf7 $19) 38. Ne2 (38. Nxb5 Rxf2+) 38... b4 39. Rd8+ (39. Rc1 {was called for.} Bd6 40. Rb1) 39... Kh7 {Strongly threatening ...b3.} 40. Rc8 $2 (40. Rb8) 40... Ba7 {...b3 is the strong threat.} 41. Rc1 $2 (41. Rc7 b3 42. Rxf7+ Kh6 43. Rb7) 41... b3 {Black is clearly winning.} 42. Rb1 b2 {And now ...Ra1 would win.} 43. Kg2 Bc5 44. Nc3 Ra3 45. Ne2 Rb3 46. Kf1 Ba3 47. Ke1 Rd3 48. Kf1 Rd2 {Accuracy: White = 49%, Black = 73%.} 0-1 [Event "4th New Chess Brains GM"] [Site "Hamburg GER"] [Date "2020.03.12"] [Round "8.5"] [White "Parvanyan, Ashot"] [Black "Ernst, S."] [Result "0-1"] [ECO "D02"] [WhiteElo "2447"] [BlackElo "2554"] [Annotator "Tactical Analysis 3.0 (15s)"] [PlyCount "116"] [EventDate "2020.03.08"] [EventType "tourn"] [EventRounds "9"] [EventCountry "GER"] [EventCategory "9"] [SourceTitle "TWIC 1326"] [Source "Mark Crowther"] [SourceDate "2020.04.06"] [SourceVersion "1"] [SourceVersionDate "2020.04.06"] [SourceQuality "2"] {[%evp 10,116,59,0,53,9,61,7,66,0,39,0,48,0,22,0,30,0,60,0,30,0,16,0,37,0,46,0, 71,0,44,0,0,0,13,0,0,-17,0,-13,9,-25,-13,-20,0,-13,0,-33,-13,-62,-13,-52,-13, -94,-59,-93,-66,-124,-79,-156,-89,-132,-94,-252,-204,-238,-156,-184,-48,-64, -62,-307,-291,-410,-407,-843,-698,-722,-660,-624,-235,-282,-235,-229,-234,-231, -223,-284,-207,-283,-272,-470,-471,-468,-443,-473,-460,-553,-553,-672,-696, -1074,-707,-766,-773,-29986,-29983,-29988,-29989]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Qc2 dxc4 5. Qxc4 Bg4 6. Nbd2 (6. Nc3 {is more complex.} Nbd7 7. e4 Bxf3 8. gxf3 e5 9. Be3) 6... e6 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines} 7. g3 (7. h3 $14 Bf5 8. g4) 7... Nbd7 (7... Bh5 $11) 8. Bg2 $14 Be7 (8... Bh5 $11) 9. O-O (9. Qb3 $14) 9... O-O 10. b3 a5 (10... Rc8 $11) 11. a3 Rc8 12. Bb2 h6 13. Rfc1 b5 (13... Bh5 $11) 14. Qc2 (14. Qd3 $1 $14) 14... Bf5 15. Qd1 $146 ( 15. e4 $5 {[%CAl Re4f5]} Bg6 16. Bf1 $11) ({Predecessor:} 15. e4 Bg6 16. Bf1 Qb6 17. Qd3 Rc7 18. Qe2 Rb8 19. Ne1 c5 20. Nd3 cxd4 21. Rxc7 Qxc7 22. Bxd4 { 1/2-1/2 (45) Zhekov,Z-Gavrilov,I ICCF email 2016}) 15... Qb6 16. e3 Rfe8 17. Qe2 Bh7 (17... Bg6 $11) 18. h3 (18. Ne5 $14) 18... Bf8 (18... Red8 $11) 19. Ne1 (19. Ne5 $16) 19... c5 (19... Red8 $11 {was preferrable.}) 20. a4 (20. Nef3 $14 ) 20... bxa4 $11 21. Rxa4 cxd4 22. Rxc8 Rxc8 23. Bxd4 Nc5 24. Ra1 Nfd7 25. Nc4 Qb5 26. Rxa5 Qxb3 27. Nd2 Qb4 28. Ra7 Rd8 29. Ra2 (29. Nc4 $11) 29... e5 $15 30. Ba1 Bf5 31. Nc2 (31. g4 $11 {keeps the balance.} Be6 32. Rc2) 31... Qb6 $36 {[%mdl 2048] Black is pushing.} 32. Bc3 Qe6 33. Nb4 Bxh3 34. Bd5 ({Better is} 34. Bxh3 Qxh3 35. Ra7) 34... Qg6 ({Black should play} 34... Qf6 {White must now prevent ...Nb6.} 35. Ra7 Rc8) 35. Ra7 Be6 36. e4 $2 (36. Bxe6 $17 Qxe6 37. Qc4) 36... Rc8 $19 37. Nc6 Bxd5 38. exd5 Qc2 ({Black should try} 38... Re8 $19 39. Nc4 Qb1+ 40. Kh2 Qf5) 39. Bb4 $1 $15 Re8 40. Qf3 $2 (40. Bxc5 $15 Nxc5 41. Qh5) 40... e4 $19 41. Qe3 (41. Qe2 $142) 41... Nf6 42. Qd4 {[#]} (42. d6 $142 Nd3 43. Ne7+ Bxe7 44. Rxe7 Rxe7 45. dxe7 Nxb4 46. Qd4 Qd1+ 47. Kh2 Qh5+ 48. Kg1 ) 42... e3 $1 {[%mdl 512]} 43. fxe3 Nd3 44. d6 {intending d7.} Nxb4 $2 ({ Weaker is} 44... Qxc6 45. Qxd3 Nd5 46. d7 $17) (44... Qd1+ 45. Nf1 Re4) 45. Nxb4 Qd1+ 46. Nf1 Qxd4 47. exd4 Bxd6 48. Nc6 g5 49. Kf2 Kg7 50. Ne3 $2 (50. Kg1 ) 50... Ne4+ 51. Kg2 Nxg3 52. Nc4 Nf5 53. Rd7 Bf4 54. Kf3 h5 55. d5 Nh4+ 56. Kf2 g4 {[#] ( -> ...g3+)} 57. Ne7 g3+ 58. Kf1 Ra8 {Accuracy: White = 29%, Black = 53%.} 0-1