[Event "Gashimov Memorial 5th"] [Site "Shamkir"] [Date "2018.04.27"] [Round "8"] [White "Mamedyarov, Shakhriyar"] [Black "Navara, David"] [Result "1-0"] [ECO "D90"] [WhiteElo "2814"] [BlackElo "2745"] [Annotator "Krasenkow,M"] [PlyCount "83"] [EventDate "2018.04.19"] [EventType "tourn"] [EventRounds "9"] [EventCountry "AZE"] [EventCategory "21"] [SourceTitle "CBM 184"] [Source "ChessBase"] [SourceDate "2018.05.16"] [SourceVersion "1"] [SourceVersionDate "2018.05.16"] [SourceQuality "1"] {[%evp 0,45,26,26,26,-18,37,37,55,52,51,14,1,12,23,-1,-10,0,-28,-28,15,-3,-3, -3,-3,-47,-47,-47,-20,-20,21,-11,110,86,65,63,63,76,76,76,76,76,76,71,67,62,40, 40]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 dxc4 6. e4 c5 7. d5 b5 8. h5 $1 {[%csl Gb7,Gc2,Gd3,Rd7,Ge4,Gf3,Gg2,Gh7][%CAl Ge4d5,Gc6b7,Gc6b5,Gc3b5,Gf1c4, Ge4f5,Gg6h7,Gg6h5,Gf5g4,Rd5e6,Re6d7] [#]} O-O (8... Nxh5 9. Nxb5 Qa5+ 10. Nc3 Nd7 11. Bd2 Ba6 12. g4 Nhf6 13. Bh3 h5 14. gxh5 Rxh5 15. Bxd7+ Nxd7 16. Rxh5 gxh5 17. Ng5 Ne5 18. Qxh5 Qb6 19. Ne6 Bf6 20. Na4 Nd3+ 21. Ke2 Qd6 22. Bc3 Qxe6 23. dxe6 Nf4+ 24. Kf3 Nxh5 25. Rh1 Bxc3 26. bxc3 fxe6 27. Rxh5 O-O-O 28. Nxc5 Bb7 29. Rh7 Re8 30. Kf4 Bc6 31. Ke5 Bd7 32. f4 Kd8 33. Rh2 Kc7 34. Rd2 Bc8 35. Nxe6+ Kc6 36. f5 Rh8 37. Rd8 Rxd8 38. Nxd8+ Kc7 39. Ne6+ Kc6 40. Nf4 Kd7 41. Kd4 Bb7 42. e5 Bf3 43. Kxc4 Bg4 44. f6 exf6 45. exf6 Kd6 46. f7 {1-0 (46) Prusikin,M (2524)-Jansa,V (2438) Bayerisch Eisenstein 2014 EXT 2016 [Prusikin, M]}) 9. hxg6 fxg6 10. d6 $6 $146 {A dubious novelty in one of the main theoretical lines of the new 5.h4 system.} (10. Nxb5 {is good for Black, too:} Qa5+ 11. Nc3 Nxe4 12. Bd2 Nxc3 13. bxc3 Bxc3 (13... Nd7 $5 14. Bxc4 $140 Nb6 $132) 14. Bxc4 Ba6 15. Qe2 Bxc4 $2 (15... Rf7 $13) 16. Qe6+ Rf7 17. Rxh7 Bxd2+ 18. Nxd2 Kxh7 19. Qxf7+ Kh8 20. Qf8+ Kh7 21. Qxe7+ Kg8 22. Qe8+ Kg7 23. Rb1 $18 {1-0 (35) Li Chao2 (2732)-Xiong,J (2634) chess.com INT 2018}) (10. e5 Ng4 11. d6 {is the main continuation leading to a crazy position. Here are some practical examples although, of course, it's beyond human abilities to play this position without errors:} e6 $1 (11... Bb7 12. Bg5 Nc6 13. dxe7 Qxd1+ 14. Rxd1 Rf5 15. Nxb5 $18 {1-0 (43) Gareyev,T (2674)-Robson,R (2620) Saint Louis 2013}) 12. Rxh7 $1 {A nice sacrifice, which Black is not obliged to accept, though.} Rf5 $1 (12... Kxh7 $6 13. Ng5+ Kg8 14. Qxg4 Rf5 15. Be3 (15. f4 Rxg5 16. Qxg5 Qxg5 17. fxg5 Bxe5 18. Nxb5 {1/2 (40) Ftacnik,L (2558)-Danin,A (2564) Czechia 2014} Nc6 19. Bxc4 Rb8 $13) (15. Qh4 $5) 15... Nc6 16. Qh4 Nxe5 17. O-O-O Bd7 18. Nce4 Qa5 19. Qh7+ Kf8 20. Nxc5 Rxg5 21. Bxg5 Qxa2 22. Rd4 $18 { 1-0 (31) Vitiugov,N (2719)-Ragger,M (2680) Tromsoe 2013}) (12... Nc6 13. Rxg7+ Kxg7 14. Bg5 Qd7 (14... Qa5 15. d7 Bb7 16. Qd6 b4 17. Ne4 b3+ {1/2 (56) Pashikian,A (2603)-Kantans,T (2473) Minsk 2017} 18. Bd2 $1 Qxa2 19. Rd1 $18 {-> }) (14... Qb6 15. d7 Bb7 16. Qd2 Nd4 17. O-O-O a6 18. Nxd4 cxd4 19. Qxd4 Qxd4 20. Rxd4 Nxe5 21. d8=Q Raxd8 22. Rxd8 Rxf2 23. Be2 $16 {1-0 (37) Costachi,M (2425)-Kantans,T (2524) Antalya 2017}) 15. Ne4 Ncxe5 16. Nxe5 Nxe5 17. Nxc5 Qc6 18. Qd4 Rf5 19. Be3 Kg8 20. O-O-O $16 {-> 1/2 (39) Morozevich,A (2739) -Ponomariov,R (2756) Riga 2013}) 13. Rh3 Nc6 $1 (13... Bb7 14. Nxb5 Qa5+ 15. Nc3 Nxe5 16. Nxe5 Rxe5+ 17. Be3 Nd7 18. Rg3 Be4 19. Bxc4 $16 {1-0 (32) Vidit,S (2686)-Bok,B (2594) Douglas 2016}) 14. Nxb5 (14. Ne4 Ngxe5 (14... Bb7 $5) 15. Nfg5 Nd4 16. g4 Rf8 17. f4 Nf7 18. Qd2 Nxg5 19. Nxg5 Qxd6 20. Qh2 Qe7 21. Be3 e5 22. Bg2 {1-0 (28) Zhou,W (2646)-Li,C (2748) Zaozhuang 2015} Rd8 23. Bxa8 Bxg4 $13) 14... Ngxe5 15. Nxe5 Rxe5+ 16. Be3 Nd4 17. Bxc4 Nxb5 18. Qd3 Nd4 19. Qxg6 Qf6 20. Qe8+ Qf8 21. Qg6 Qf6 22. Qe8+ Qf8 23. Qg6 Qf6 {1/2 (23) Georgiadis,N (2473)-Ragger,M (2700) Austria 2017}) 10... exd6 11. Nxb5 (11. a4 $5) 11... d5 $1 {[%mdl 128] Black makes use of the fact that this pawn can't be taken and creates an attack in the centre.} 12. Nc3 (12. exd5 $4 Qe8+) (12. e5 Ne4 13. Nd6 Qa5+ 14. Ke2 Be6 15. Nxe4 dxe4 16. Ng5 Rd8 17. Bd2 c3 18. Bxc3 Rxd1 19. Rxd1 Qb6 20. Rd6 Nc6 21. Nxe6 Qb7 22. Kd1 Bxe5 23. Bc4 Kh8 24. Ng5 Bxc3 25. Bd5 e3 26. fxe3 Qe7 27. Rxh7+ Qxh7 28. Nxh7 Be5 29. Rxc6 Rd8 30. Rxc5 Kxh7 31. Kc2 Kh6 32. Be4 Bf6 33. b4 Be7 34. Rc4 Rd6 35. b5 Re6 36. Kd3 Re5 37. a4 Bc5 38. a5 Bf8 39. Rc8 Bb4 40. b6 axb6 41. axb6 Rb5 42. b7 Bd6 43. Rc6 { 1-0 (43) Babula,V (2559)-Ioannidis,E (2411) Tornelo INT 2021}) 12... Re8 13. Be3 d4 $2 {[%mdl 16384] But now David Navara neglects development and lets his initiative slip.} (13... Nc6 $142 $1 14. exd5 (14. Nxd5 Nxe4 15. Bxc4 Be6) 14... Nd4 $17 {[%csl Re1]}) 14. e5 (14. Bxc4+ $5 Be6 (14... Kh8 $2 15. Ng5) ( 14... Kf8 15. e5) 15. Bxe6+ Rxe6 16. Ng5 $36) 14... Ba6 $6 {Of course, it was impossible to calculate everything over the board. Black's choice is not optimal.} (14... dxe3 $142 {, e.g.} 15. Bxc4+ Kh8 16. Qxd8 Rxd8 17. exf6 (17. Ng5 Rd7) 17... Bxf6 18. Ne4 exf2+ 19. Kxf2 Bd4+ {and Black holds on.}) 15. Qa4 Qd7 16. Bxc4+ Bxc4 17. Qxc4+ Qe6 18. Qxe6+ Rxe6 19. exf6 Bxf6 20. Nd5 Bd8 21. O-O-O dxe3 22. Nxe3 $16 {The position has calmed down. As a result of complications, White has got a better endgame, due to the weakness of Black's c5 pawn.} Nc6 23. Rd7 Be7 $2 {[%mdl 8192] A blunder losing a pawn.} (23... Re7 $142 {but after} 24. Rhd1 {Black's position is very difficult.}) 24. Rxh7 $1 Rb8 (24... Kxh7 25. Ng5+) (24... Rxe3 25. fxe3 Kxh7 26. Rc7 $18) 25. Rc7 $6 { Starting from now, White plays inaccurately.} (25. Nd5 $142 $1 $18) 25... Bf6 26. Rb7 Nb4 27. Rxb8+ Kxh7 28. Rb7+ Kg8 29. Rxa7 Nd3+ 30. Kb1 (30. Kc2 $1 Nxf2 31. Nd5 Re2+ 32. Kb3 Bxb2 33. a4) 30... Bxb2 31. a4 Bd4 32. Kc2 Nb4+ (32... Nxf2 33. Nc4 $16) 33. Kd2 Bxe3+ 34. fxe3 Nd5 35. a5 c4 $2 {This pawn is going nowhere.} (35... Nxe3 $142 {keeping some drawing chances.}) 36. Rd7 $1 { Ousting Black's knight from the central square.} Nf6 (36... Nxe3 37. Nd4 Nf1+ ( 37... Re8 38. a6) 38. Kc3 Ra6 39. Kb4 $18) (36... c3+ 37. Kc2 Nxe3+ 38. Kxc3 Nxg2 39. Nd4 {and Black's knight can't come back to the queenside to give itself up for White's a-pawn.}) 37. Rd8+ Kg7 38. Kc3 Rc6 (38... Ra6 39. Kb4) ( 38... Rxe3+ 39. Kxc4 {etc.}) 39. Ne5 Ne4+ 40. Kd4 c3 41. Kxe4 Rc4+ 42. Kf3 (42. Kf3 c2 43. Nd3 $18) 1-0