[Event "Prague Festival Challengers 2020"] [Site "Prague"] [Date "2020.02.12"] [Round "1.4"] [White "Stefansson, Hannes"] [Black "Kriebel, Tadeas"] [Result "1-0"] [ECO "B47"] [WhiteElo "2529"] [BlackElo "2524"] [Annotator "TA"] [PlyCount "95"] [EventDate "2020.02.12"] [EventType "tourn"] [EventCountry "CZE"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 20,95,23,14,29,12,15,8,10,12,46,0,33,0,0,0,0,0,0,0,0,0,0,0,0,-16,-24,-27,-8,-86,20,20,14,10,198,198,204,201,198,180,195,200,266,265,271,251,300,292,370,366,471,477,607,482,488,477,458,457,536,341,492,439,473,378,476,480,745,654,796,710,6318,6314,5477,6266,29955,6888,2888,2384]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Be7 8. Be3 O-O 9. f4 d6 10. Kh1 Nxd4 11. Qxd4 e5 {B83: Sicilian Scheveningen: 6 Be2, lines without ...a6.} 12. Qd3 b6 {is the legacy move (12...a6).} 13. Rad1 Bb7 {The position is equal.} 14. Bf3 {[#]} Rad8 $146 ({Predecessor:} 14... Rac8 15. Rf2 Qc4 16. Rfd2 h6 17. Qxc4 Rxc4 18. fxe5 dxe5 19. Rd7 Nxd7 20. Rxd7 Bg5 {0-1 (32) Panagiotakos,N (2121)-Giannoulakis,L (2283) Pardubice 2015}) 15. f5 (15. Nb5 $5 {[%cal Rb5c7]} Qd7 16. c4 $14 (16. Nxa7 Bxe4 17. Bxe4 Qxa7 $14)) 15... Rfe8 16. Bf2 (16. Nb5 $5 {[%cal Rb5c7]} Qd7 17. c4 $14) 16... Qc8 17. Rfe1 Ba6 18. Qd2 d5 19. Nxd5 Nxd5 20. exd5 Qxf5 21. Re4 Bd6 22. Bh4 Rc8 23. Rde1 Qd7 24. Bh5 (24. g4 $11) 24... Rf8 (24... g6 $17 25. Be2 Bb7) 25. Bf6 $1 $11 {[#] Intending Qg5! and mate.} Qf5 $1 {[%cal Rf5f6]} ({Avoid the trap} 25... gxf6 $2 26. Rg4+ Qxg4 27. Bxg4 $18) 26. Bxe5 Rcd8 $2 (26... Bxe5 $11 27. Rxe5 Qxc2) 27. Bf3 Bxe5 28. Rxe5 $40 {[%mdl 128] White is out for blood.} Qf6 29. b3 Qd6 30. Re7 Bc8 31. Rxa7 Bd7 32. Qf2 f5 33. Rb7 Rf6 34. c4 Rh6 {[%csl Gh6][%cal Rd6h2]} 35. h3 Rf8 36. Qe3 Rhf6 37. Re2 Bc8 38. Re7 Qg3 39. Qf2 Qd6 (39... Qxf2 {might work better.} 40. Rxf2 R8f7) 40. Qh4 Bd7 41. R2e5 h6 42. b4 Ba4 (42... Rd8 $142 43. a3 f4) 43. a3 Bc2 44. R5e6 Qd8 {[#]} 45. Qg3 $1 {[%csl Ge7][%cal Rg3g7]} R6f7 46. Qe5 Be4 47. Rxf7 Kxf7 48. Bh5+ {Accuracy: White = 81%, Black = 45%.} 1-0 [Event "Prague Festival Challengers 2020"] [Site "Prague"] [Date "2020.02.14"] [Round "3.3"] [White "Stefansson, Hannes"] [Black "Cernousek, Lukas"] [Result "1-0"] [ECO "C11"] [WhiteElo "2529"] [BlackElo "2442"] [Annotator "TA"] [PlyCount "101"] [EventDate "2020.02.12"] [EventType "tourn"] [EventCountry "CZE"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 23,101,0,16,4,22,16,11,12,5,18,1,10,27,0,0,0,-12,-34,-32,-39,-30,-64,-64,-66,-68,-73,-75,-68,-81,-72,-79,-79,-67,-69,-77,-75,-73,-103,-97,-95,-77,-99,-67,-75,-12,-33,-27,-14,-12,-12,-10,-60,-51,-59,-58,-39,167,172,172,172,172,174,174,174,175,129,541,668,554,420,1193,1080,1195,1047,5527,5206,6079,6033,1401,1327]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Qb6 9. Qd2 Qxb2 10. Rb1 Qa3 11. Bb5 Nxd4 12. Bxd4 Bb4 13. Rb3 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} Qa5 14. a3 Be7 15. f5 {The position is equal.} exf5 16. Nxd5 Qxd2+ 17. Kxd2 Bd8 {[#]} 18. Rf1 $1 $146 {[%mdl 8] An important novelty.} ({Predecessor:} 18. Rc3 Ba5 19. Nc7+ Bxc7 20. Rxc7 Kd8 21. Rc3 Nf8 22. Bc5 Bd7 23. Bxf8 Bxb5 24. Bxg7 {1-0 (37) Svidler,P (2735)-Meier,G (2628) Karlsruhe/Baden Baden 2019}) 18... a6 19. Bd3 Nf8 20. Bb6 {[#] Threatens to win with Bxd8.} Be6 $36 {[%mdl 2048] Black is more active.} 21. c4 Nd7 22. Bxd8 Rxd8 23. Rxb7 O-O $1 {aiming for ...Bxd5.} 24. Bxf5 Nxe5 25. Kc3 Bxd5 26. cxd5 Rxd5 27. Rc7 g6 28. Bc2 Rfd8 29. Re1 Kg7 30. Re2 h5 31. Bb3 Rb5 {Hoping for ...Rd3+.} 32. Kc2 Rd7 (32... Rdb8 {feels hotter.} 33. Rc3 f6 34. Rd2 R5b6 35. g3 Ng4) 33. Rxd7 {[#]} Nxd7 $15 {[%mdl 4096] Endgame KRB-KRN} (33... Rc5+ $1 $17 34. Kd2 Nxd7) 34. Re7 $11 Ne5 35. Kc3 Kf6 36. Ra7 Rc5+ 37. Kd4 (37. Kb4 $5 {[%cal Rb4c5]} Rc6 38. Ka5 $11) 37... Ra5 {White must now prevent ...Nc6+.} 38. Rb7 Nc6+ 39. Kc3 Ne5 $2 (39... Nd8 $15 {stays ahead.} 40. Rb6+ Ne6) 40. Rb6+ $18 Ke7 41. Kb4 Rb5+ 42. Rxb5 axb5 43. Kxb5 {KB-KN} Kd6 44. a4 f5 $2 {[%mdl 8192]} (44... Kc7 $16 {is a better chance.} 45. Bd5 Kd6) 45. h4 Kc7 46. Kc5 Kb7 (46... Nd3+ $142 47. Kd4 Ne1) 47. Bd5+ {White is clearly winning.} Ka6 48. Kd4 Nd7 49. Bf7 Nf8 50. Ke5 Ka5 51. Be8 {Accuracy: White = 84%, Black = 66%.} 1-0 [Event "Prague Festival Challengers 2020"] [Site "Prague"] [Date "2020.02.16"] [Round "5.1"] [White "Stefansson, Hannes"] [Black "Krejci, Jan"] [Result "1-0"] [ECO "C92"] [WhiteElo "2529"] [BlackElo "2559"] [Annotator "TA"] [PlyCount "65"] [EventDate "2020.02.12"] [EventType "tourn"] [EventCountry "CZE"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 20,65,37,21,23,38,36,0,18,1,0,-20,8,7,8,9,25,22,23,33,74,70,72,77,69,69,79,79,77,77,84,81,86,89,148,120,138,137,129,131,172,173,29986,29987,29984,733,29995,29996]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 exd4 {C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations.} 12. cxd4 Nd7 13. Bd5 Nb6 {The position is equal.} 14. Bxc6 Bxc6 15. d5 Bd7 16. Nd4 Bf6 17. N2f3 {[#]} Nc4 $146 ({Predecessor:} 17... Rc8 18. Bf4 c5 19. dxc6 Bxc6 20. Nxc6 Rxc6 21. Rc1 Rxc1 22. Qxc1 Na4 23. e5 dxe5 24. Bxe5 Bxe5 25. Rxe5 Rxe5 26. Nxe5 {½-½ (37) Gao,R (2552)-Zhou,W (2635) Xinghua 2016}) 18. b3 Ne5 19. Bb2 Qb8 20. Rc1 Qb6 21. Nxe5 Bxe5 22. Qd2 h6 23. Nc6 Bxb2 24. Qxb2 Bxc6 25. Rxc6 Qa7 26. Re3 Re7 (26... Rad8 $142) 27. Rg3 $16 {[%csl Gg3][%cal Rb2g7]} g6 28. Qf6 Rae8 29. Rcc3 {Strongly threatening h4.} Qb8 ({And not} 29... Rxe4 30. Rxg6+ $1 {[%mdl 512]} Kf8 31. Rxh6 Qxf2+ 32. Kxf2 Rf4+ 33. Qxf4 Re2+ 34. Kxe2 f6 35. Rh8+ Kg7 36. Qh6+ Kf7 37. Rxc7#) 30. Rg4 {White wants to mate with Rcg3.} Qd8 $2 {[#]} (30... h5 $18 31. Rg5 h4) 31. Rcg3 $1 Qd7 32. Rh4 (32. f4 $142 b4 33. Rh4 Re6 34. dxe6 Qxe6 35. Qxe6 Rxe6 36. f5 Rf6 37. Rxh6) 32... Kh7 33. Qg5 {Accuracy: White = 91%, Black = 52%.} 1-0 [Event "Prague Festival Challengers 2020"] [Site "Prague"] [Date "2020.02.19"] [Round "7.1"] [White "Stefansson, Hannes"] [Black "Abasov, Nijat"] [Result "1/2-1/2"] [ECO "E16"] [WhiteElo "2529"] [BlackElo "2670"] [Annotator "TA"] [PlyCount "62"] [EventDate "2020.02.12"] [EventType "tourn"] [EventCountry "CZE"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,62,33,23,16,15,11,12,12,18,12,19,23,22,6,14,10,7,11,4,5,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. O-O d6 9. Nc3 Ne4 10. Nxe4 Bxe4 11. Qe3 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} Bb7 12. Qd3 {Black must now prevent Ng5!} f5 13. Ne1 Bxg2 14. Nxg2 {[#]} e5 $146 ({Predecessor:} 14... Qf6 15. Qf3 c6 16. Rfd1 d5 17. Rac1 Nd7 18. Qa3 Rfc8 19. Nf4 g5 20. Nd3 Qxd4 21. cxd5 cxd5 {1-0 (39) Alekseev,E (2707)-Raznikov,D (2486) St Petersburg 2013}) 15. dxe5 dxe5 16. Qf3 {The position is equal.} e4 17. Qc3 Nc6 18. Rfd1 Qf6 19. Qxf6 Rxf6 20. Rd7 Rf7 21. Rad1 Ne5 22. Rxf7 Kxf7 $11 {[%mdl 4096] Endgame KRN-KRN} 23. Ne3 g6 24. Kg2 Re8 25. f4 exf3+ 26. exf3 Re7 27. Kf2 Rd7 28. Rxd7+ Nxd7 29. Ke2 Ke6 30. f4 Kd6 31. b4 a6 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2 [Event "Prague Festival Challengers 2020"] [Site "Prague"] [Date "2020.02.20"] [Round "8.1"] [White "Stefansson, Hannes"] [Black "Piorun, Kacper"] [Result "0-1"] [ECO "B91"] [WhiteElo "2529"] [BlackElo "2611"] [Annotator "TA"] [PlyCount "100"] [EventDate "2020.02.12"] [EventType "tourn"] [EventCountry "CZE"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,100,29,42,48,43,59,39,43,39,46,0,50,50,50,50,58,51,58,43,43,43,50,50,50,21,37,20,23,0,33,29,20,0,0,0,0,0,0,0,0,0,0,0,0,-16,-22,-97,-97,-97,-97,-97,-97,-97,-97,-97,-97,-123,-123,-123,-97,-97,-97,-97,0,-97,0,-123,-123,-123,-123,-592,-592,-592,-580,-553,-488,-484,-477]} 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 O-O 9. O-O Nbd7 10. a4 b6 11. Nd5 Nxd5 12. Qxd5 Rb8 13. Nc3 Nf6 {B91: Sicilian Najdorf: 6 g3.} 14. Qd3 h6 15. b3 Qc7 {White is slightly better.} 16. Ba3 {[#]} Bd7 $146 ({Predecessor:} 16... Rd8 17. Rac1 Qb7 18. f4 b5 19. axb5 axb5 20. Bb4 Be6 21. f5 Bc4 22. Qd2 Bxf1 23. Rxf1 {1-0 (47) Bender,Z (2002)-Kovacevic,K (2117) Zagreb 2019}) 17. Bb4 b5 (17... a5 $5 18. Ba3 $8 Rfc8 $11) 18. axb5 axb5 19. Rfd1 Rfc8 20. Qe3 Ra8 21. Rxa8 Rxa8 22. Qd3 Bf8 23. Bf3 Rc8 24. Kg2 ({Much worse is} 24. Nxb5 Bxb5 25. Qxb5 Qxc2 $15) 24... Qb6 25. Rd2 (25. Ra1 {feels hotter.} Qd4 26. Qxd4 exd4 27. Ne2 d5 28. e5) 25... Bc6 26. Qe2 ({Avoid the trap} 26. Bxd6 $2 Rd8 $19) 26... Qb8 27. h4 Qa8 {[#] Hoping for ...d5.} 28. Bxd6 b4 29. Na4 $1 {[%cal Ra4b6]} Nxe4 30. Bxe4 Bxe4+ 31. f3 Bxd6 32. Qxe4 Qxe4 33. fxe4 Bc5 34. Nxc5 Rxc5 $11 {[%mdl 4096] Endgame KR-KR} 35. Rd8+ (35. h5 $11 {keeps the balance.}) 35... Kh7 $17 36. Rb8 Rxc2+ 37. Kh3 h5 38. Rxb4 f6 39. Rc4 Re2 40. Ra4 Kh6 41. Rc4 Kg6 42. Rb4 Rb2 43. Rb7 Re2 44. Rb4 $1 Kh6 45. Rc4 $1 g5 46. hxg5+ Kxg5 47. b4 $2 {[%mdl 8192] [#] This costs White the game.} (47. Rb4 $17) 47... Rb2 $19 {Black is clearly winning.} 48. Rc3 Rxb4 49. Re3 Rb2 50. Re1 Rb3 {Accuracy: White = 78%, Black = 90%.} 0-1