[Event "Lausanne WGP 2020"] [Site "Lausanne SUI"] [Date "2020.03.04"] [Round "3.5"] [White "Muzychuk, Anna"] [Black "Sebag, Marie"] [Result "1-0"] [ECO "B30"] [WhiteElo "2535"] [BlackElo "2443"] [Annotator "Muzychuk,A"] [PlyCount "75"] [EventDate "2020.03.02"] [EventType "tourn"] [EventRounds "11"] [EventCountry "SUI"] [EventCategory "11"] [SourceTitle "The Week in Chess 1322"] [Source "Mark Crowther"] [SourceDate "2020.03.09"] [SourceVersion "1"] [SourceVersionDate "2020.03.09"] [SourceQuality "2"] {[%evp 0,75,16,28,97,58,50,64,82,82,50,42,38,33,2,-22,-25,-104,-59,-153,-130, -102,-113,-113,-63,-66,-66,-353,-108,-350,-61,-82,366,376,376,376,503,503,503, 519,503,503,516,493,486,490,484,500,500,488,522,522,530,359,428,358,327,301, 353,358,347,351,331,305,320,322,327,356,364,363,435,412,460,416,638,696,696, 708]} 1. e4 c5 2. Nc3 Nc6 3. Nf3 e5 4. Bc4 Be7 5. d3 Nf6 6. Ng5 O-O 7. h4 { This idea became popular after Daniil Dubov introduced it in his rapid game vs Boris Gelfand. At first glance it looks like Black did not do anything wrong and White's attack should be premature. However nowadays chess became a much more concrete game and the moves which were not seriously considered earlier appear to be very interesting and appealing. Indeed, the statistics claims White is doing very well in this line - according to my database after 7.h4 White won 7 games out of 12. Though things are not so clear and I believe players from the Black's side will try to find an antidote in the next games.} h6 $6 {Marie wasn't familiar with this new concept and after some time of thinking she came up with 7...h6. In my opinion this is not the correct way to face the line since after h6 Black does not really threaten to capture the knight while White gets an extra tempo for developing the attack.} (7... Na5 { was played by Gelfand and Moiseenko, as well as in some correspondence games. This looks logical as the bishop on c4 is very annoying but after} 8. f4 { some radical measures should be taken} d5 $1 ({The reason is that if} 8... Nxc4 {then White simply gets a very comfortable attack without any risk} 9. dxc4 d6 10. f5 g6 (10... h6 11. Qf3 (11. a4 $5 {[%cal Yb7b5]}) 11... Bd7 12. Nh3 (12. g4 $18) 12... b5 13. g4 b4 14. Nd1 Bc6 15. Nhf2 Nxe4 16. Nxe4 Bxh4+ 17. Ndf2 Bxf2+ 18. Kxf2 d5 19. Bxh6 dxe4 20. Qh3 f6 21. Be3 Qe7 22. Qh7+ Kf7 23. Qg6+ Kg8 24. Rh7 Be8 25. Rah1 {1-0 (25) Kryvoruchko,Y (2675)-Moiseenko,A (2623) Lutsk 2019}) (10... h5 11. Nd5 Ng4 12. a4 (12. Ne3 $5) 12... Bd7 13. Ne3 Nf6 14. g4 $18 g6 15. Qf3 Kg7 16. gxh5 Nxh5 17. Rg1 Bxg5 18. Rxg5 Rh8 19. fxg6 fxg6 20. Nf5+ Bxf5 21. exf5 e4 22. Qc3+ Kf7 23. fxg6+ Kg8 24. b3 Ng7 25. Bb2 Qe7 26. Qg3 e3 27. Qf3 Rxh4 28. Qf7+ Qxf7 29. gxf7+ Kf8 30. Rxg7 {1-0 (30) Dubov,D (2660)-Gelfand,B (2725) Moscow 2016}) 11. g4 h5 12. gxh5 (12. Rg1 Nxg4 13. Rxg4 hxg4 14. Qxg4 Qe8 15. Nd5 Bd8 16. Be3 Kh8 17. O-O-O f6 18. Ne6 Bxe6 19. Rg1 $1 Bd7 20. Qg2 $16) 12... gxf5 13. Qf3 (13. exf5 Bxf5 14. Rg1 Kh8 $13 {1-0 (47) Hakobyan,A (2554)-Skibbe,W (2245) Karlsruhe 2019}) (13. Rg1 Kh8 14. Qf3 fxe4) 13... fxe4 14. Ncxe4 Ng4 (14... Nxe4 15. Nxe4 Bxh4+ 16. Kf1 f5 17. Bh6 $18) 15. Rg1 (15. Bd2 $16) (15. Nc3 $16) 15... f6 16. Nh3 f5 17. Neg5 $16) 9. Nxd5 (9. Bxd5 Bg4 10. Qd2 Nc6 $1 $44 (10... exf4 11. O-O)) (9. exd5 $2 Bg4 10. Qd2 Nxc4 11. dxc4 exf4 $19) 9... Nxc4 10. dxc4 Nxd5 11. cxd5 exf4 12. Bxf4 Re8 13. O-O ( 13. e5 f6 14. Ne4 Bf5 15. Qf3 Bxe4 16. Qxe4 Bd6 17. O-O-O Bxe5 {is close to equality}) 13... Bxg5 {and White was pressing a bit after both 14.hg and 14. Bg5 but Black managed to hold} 14. hxg5 (14. Bxg5 f6 15. Bf4 Rxe4 16. d6 Qd7 17. Qd5+ Qe6 18. Rad1 Qxd5 19. Rxd5 Bd7 20. Rxc5 Bc6 21. Rf2 Kf7 22. Kh2 Rae8 23. Bg3 Ke6 24. c4 Rc8 25. Rd2 {1/2 (25) Podvoysky,E (2393)-Rudenko,A (2328) ICCF email 2017}) 14... Rxe4 15. Qf3 Bf5 16. c4 Rxc4 17. Rae1 Qd7 18. Be5 Bg4 19. Qd3 Ra4 20. Bc3 Rf8 21. d6 Ra6 22. Be5 Be6 23. Qc3 Rxd6 24. Bxd6 Qxd6 25. Rd1 Qc7 26. a3 c4 27. Qd4 Qg3 28. Qf4 Qxf4 29. Rxf4 h6 30. gxh6 Rc8 31. hxg7 Kxg7 32. Rd6 Rc5 33. Kf2 Rb5 34. Rd2 Rc5 35. Rc2 Rd5 36. Ke3 Rd3+ 37. Ke4 Kf8 38. Rff2 Ke7 39. Rfd2 Rg3 40. Rc3 Rg5 41. Kf4 Rf5+ 42. Ke4 b5 43. Rc1 Rg5 44. Kf4 Rf5+ 45. Ke3 Re5+ 46. Kf2 a5 47. Rd4 b4 48. a4 Kf6 49. g4 Kg5 50. Kf3 Bd5+ 51. Kg3 {1/2 (51) Jonsson,D (2557)-Cruzado Duenas,C (2570) ICCF email 2018}) ( 7... d6 {wouldn't be my recommendation for Black} 8. Nd5 Nxd5 (8... h6 9. Nxf6+ Bxf6 10. Qh5 {and nothing can stop White playing Qg6 on the next move}) 9. Bxd5 g6 10. Nf3 $16 {[%cal Yh4h5,Yc1h6]} (10. f4 Nb4 11. Bb3 d5 $132) (10. Nxh7 $5 Kxh7 11. Qd2 Bf6 12. Qh6+ Kg8 13. Qxg6+ Bg7 14. Bh6 Qf6 15. Qxf6 Bxf6 16. Bxf8 Kxf8 $14)) 8. Nd5 {Following the idea of 7.h4. White wants to eliminate the f6- knight, then play Qh5 attaking the f7-pawn and keeping in mind the hidden but very unpleasant idea of Qg6.} Nxd5 (8... Nd4 9. Nxf6+ Bxf6 10. c3 (10. Qh5 $5 {leads to some crazy lines which are very entertaining but Black are supposed to be ok there.}) (10. a4 $5 {[%cal Yb7b5]}) 10... Ne6 11. Nxe6 dxe6 ( 11... fxe6 12. Qh5 $14) 12. Qh5 $40 {with the idea of Rh3-Rg3 or g4-g5}) 9. exd5 $1 {Over the board novelty. I'm glad that during the game I managed to find the strongest continuation.} (9. Bxd5 {is weaker} Nb4 $1 (9... hxg5 { loses on the spot} 10. hxg5 g6 11. Qg4 Kg7 12. Rh7+ $3 Kxh7 13. Qh4+ Kg8 14. Bd2 $18 {White still needs 3 moves to mate: 0-0-0, Rh1 and Qh7 or Qh8 but there is simply no defense.} Re8 15. Qh6 $1 (15. O-O-O Bf8)) 10. Bxf7+ (10. Bb3 $2 hxg5 {now this works!} 11. hxg5 g6 12. Qg4 Kg7 13. Rh7+ Kxh7 14. Qh4+ Kg8 15. Bd2 Re8 (15... d5 16. O-O-O f6 $19) 16. Qh6 (16. O-O-O Bf8 17. Rh1 Bg7 $19) 16... d5 $19) 10... Rxf7 11. Nxf7 Kxf7 12. c3 Nc6 13. Qh5+ Kf8 (13... Kg8 14. Bxh6) 14. Qf5+ Bf6 (14... Kg8 15. Qg6 {[%cal Yc1h6]}) 15. g4 d6 (15... d5 16. Qf3 $13) 16. Qf3 h5 17. gxh5 (17. g5 $2 Bg4) 17... Ke7 $13) 9... b5 $1 { That's creative!} ({After} 9... Nd4 {it was important to spot} 10. d6 $1 Bxd6 11. Qh5 Ne6 12. Ne4 Be7 13. Bxe6 dxe6 (13... fxe6 14. Bxh6 $18) 14. Bxh6 $18 { When I played 9.ed I saw all these ideas with Bh6 and my estimation was that "White has a better and promising position". The computer is firmer by indicating "+-".}) 10. Bb3 {The only move. Other options would have turned the tables:} (10. Bxb5 {is simply refuted by} Qa5+) (10. dxc6 bxc4 11. cxd7 Qxd7 12. Nf3 cxd3 $19) 10... Nd4 (10... c4 {perhaps was better from practical point of view} 11. dxc4 bxc4 (11... Na5 12. d6) 12. Bxc4 Na5 13. Qd3 e4 14. Nxe4 $16) 11. d6 $1 Bxd6 (11... Bb7 12. dxe7 Qxe7 13. c3 $16 Nxb3 14. axb3 Bxg2 15. Rg1 Bc6 16. Ne4 Qxh4 17. Ra6 $1 $18) 12. Bd5 Rb8 13. Qh5 Qf6 {Maybe this is not the best move but it is already difficult to give a good advice} (13... Ne6 { was more tenacious but after} 14. Ne4 {followed by Bh6 Black's position is quite unpleasant} Qe7 (14... Be7 15. Bxh6 f5 (15... Rb6 16. Qg4 Kh7 17. Bd2 $18 ) (15... gxh6 16. Qxh6 $18) 16. Bxg7 $1 Kxg7 17. Rh3 $18) 15. Bxh6 Bb7 16. Be3 g6 17. Qf3 Nd4 18. Bxd4 exd4 19. Bxb7 f5 20. O-O fxe4 21. Qxe4 {and White is winning or very close to that}) 14. c3 $1 {This is the only winning move and I spent nearly 40 minutes on it. It took me so much time because the idea of 14. Ne4 Qf5 15.Bg5 looked quite promising and tempting too. Promising and tempting but ... wrong. '!' Anya.} (14. Ne4 $2 Qf5 15. Bg5 {The ideas of g4 or Nf6 gf Be4 are in the air, although Black has more than one defense here:} (15. Qxf5 Nxf5 16. g4 {does not win as Black has} Ne7) 15... Bc7 (15... Nxc2+ $2 16. Kd2 (16. Kf1 $2 Ne3+ $19) 16... Nb4 17. g4 Qh7 18. Nf6+ gxf6 19. Be4 Qh8 20. Bxh6 $18) (15... Rb6 $5 {is probably the strongest} 16. g4 Qh7) (15... Be7 16. c3 Bd8 17. O-O-O $13) 16. Nf6+ gxf6 17. Be4 fxg5 18. Bxf5 Nxf5 19. hxg5 Rb6 { only Black can be better here}) 14... Bb7 (14... Ne6 15. Ne4 Qe7 16. Bxh6 $18 { I think we have already learnt this motif, right? :)}) 15. Ne4 (15. Bxb7 { is winning too but that would have been less precise} Nc2+ 16. Kd1 Nxa1 17. Bd5 $18 Be7) 15... Qe7 (15... Qf5 16. Qxf5 Nxf5 17. Bxb7 Rxb7 18. g4 $18 {Now there is no more bishop on d5, so no more Ne7 as in the line 14.Ne4 Qf5 15.Qf5 Nf5 16.g4. White will be just a piece up.}) (15... Qd8 16. cxd4 (16. Bxb7 $18) 16... Bxd5 17. Nxd6 $18) 16. Bg5 {In style. Now it is either I'm winning a queen or mating after Nf6} Nc2+ (16... Qe8 17. Nf6+ gxf6 18. Qg6+ Kh8 19. Bxf6# ) (16... Bxd5 17. Bxe7 $18) 17. Kd2 Bxd5 18. Bxe7 Bxe7 19. Kxc2 {This is the move I played instantly and immediately regretted about it. Obviously White's position is too much winning but had I played 19.Qe5 the game would have ended much quicker.} (19. Qxe5 Bxe4 20. Qxe4 Nxa1 21. Qxe7 $18) 19... f5 20. Ng3 Be6 {White has a huge material advantage and almost any move is winning but the game is won only after the resignation.} 21. Qe2 (21. f4 {was also logical to break Black's strong centre} exf4 22. Ne2 $18) 21... f4 22. Nf1 Bf6 23. Nd2 d5 24. g4 c4 25. d4 (25. dxc4 bxc4 26. g5 hxg5 27. hxg5 Bf5+ 28. Kc1 Bxg5 29. Qxe5 $18) 25... e4 (25... f3 26. Qe3 Bxg4 27. dxe5 Rbe8 28. Qf4 $18) 26. Nxe4 { The good thing about material advantage is that you always have an option of converting it to some other pluses :) The rest of the game is easy.} (26. g5 hxg5 27. hxg5 Bxg5 28. Qh5 $18) 26... dxe4 27. Qxe4 Bxg4 28. Rag1 Bh5 29. Qf5 Be8 30. Rg4 b4 31. Rhg1 bxc3 32. bxc3 Ba4+ 33. Kc1 Kh8 34. Qa5 Bc6 35. Rxf4 Rb5 36. Rxf6 Rxf6 37. Qd8+ Kh7 38. Qe7 (38. Qc7 Rb7 39. Rxg7+ Kh8 40. Rh7+ Kg8 41. Qd8+ Kxh7 42. Qxf6) 1-0 [Event "Corus-B"] [Site "Wijk aan Zee"] [Date "2010.01.26"] [Round "9"] [White "Muzychuk, Anna"] [Black "Giri, Anish"] [Result "1-0"] [ECO "B51"] [WhiteElo "2523"] [BlackElo "2588"] [Annotator "Muzychuk,A"] [PlyCount "109"] [EventDate "2010.01.16"] [EventType "tourn"] [EventRounds "13"] [EventCountry "NED"] [EventCategory "16"] [SourceTitle "CBM 135"] [Source "ChessBase"] [SourceDate "2010.03.17"] [SourceVersion "1"] [SourceVersionDate "2010.03.17"] [SourceQuality "1"] {[%evp 0,24,19,38,40,41,66,65,75,46,74,59,55,32,29,11,28,37,28,10,28,26,50,35, 22,7,9] This game was played in the 9th round. At that very moment my opponent was leading, 1.5 points ahead of his closest rivals. So, our game was not decisive, but as a rule the games between young players are often interesting and not at all humdrum.} 1. e4 c5 {I have to admit that already the 1st move was a little surprise for me. In all other 4 games at this tournament after 1. e4 Anish replied with 1.. .e5. The Petroff Defence had lately became the main weapon of Giri and most of all I also expected the reply of 1...e5 in my game. The choice of the Sicilian meant that Black did not intend to play just for equality.} 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. c4 Bg4 $146 {According to my database this move is a novelty. Black wants to take the knight on f3 and make weaknesses in the pawn structure} ({A similar idea with . ..Bg4 was seen in the game Girinath,P-Zhang Zhong/Kuala Lumpur 2007. In that game Black continued with} 7... Rc8 8. O-O Bg4 9. Nbd2 (9. Nc3 {here or 9.Nfd2 is also possible}) 9... Nf6 10. h3 Bd7 11. Re1 g6 12. e5 dxe5 13. Nxe5 Bg7 14. Ndf3 O-O 15. Qh4 Bc6 16. Nd4 Qb6 17. Ndxc6 bxc6 18. Re2 Rfd8 19. Be3 Qb7 20. Bc5 $14 {0-1 Girinath,P-Zhang Zhong/Kuala Lumpur 2007/CBM 120 ext (56)}) (7... b5 $5 {was played against me by Vugar Gashimov in a rapid game, just a month before my game with Anish.} 8. Nc3 bxc4 9. Qxc4 e6 10. O-O Ne7 11. Be3 Ng6 12. b4 $6 (12. Bd4 $14) 12... Be7 13. a4 O-O 14. b5 Bf6 15. Bd4 Nf4 16. b6 $4 Rc8 17. Qb4 Rxc3 $19 18. e5 Rxf3 19. exf6 Ne2+ 20. Kh1 Rf4 21. Rfd1 e5 22. Qxd6 Rxd4 23. Qxe5 Re8 {0-1 Muzychuk,A-Gashimov,V/Warsaw POL 2009/The Week in Chess 789}) (7... e5 $5 8. Qd3 b5 9. Na3 Qb6 10. O-O h6 11. b3 Nf6 12. Re1 Be7 13. Nd2 O-O 14. Nf1 Bc6 15. Ng3 Bd7 16. Be3 Qb7 17. Nc2 bxc4 18. bxc4 Rfc8 { 1-0 Tiviakov, S-Babula,V/Dresden 2007/CBM 118 (41). Later on White won the game, but the current position is quite ok for Black.}) ({The simple} 7... Nf6 {may be also a good option} 8. Bg5 (8. Nc3 g6 9. O-O Bg7 10. Bd2 O-O 11. b3 Rc8 12. Rac1 Kh8 13. Rfe1 Bc6 14. Qd3 Nd7 $11 {1/2-1/2 Mednis,E-Giorgadze,T/Lugano 1985/EXT 2000 (41)}) 8... Bc6 9. Nc3 e6 10. O-O Be7 11. Rfe1 O-O 12. Rad1 Qa5 13. Qd2 Qb6 $2 (13... Qc5 $11) 14. Nd5 $1 $14 {1/2-1/2 Girinath,P-Sitanggang,S/ Singapore SIN 2007/The Week in Chess 685 (49)}) 8. Nc3 e6 9. Be3 Nf6 ({Quite an unusual position could happen after} 9... Bxf3 10. gxf3 Nf6 {White has an advantage in development, but Black has the better pawn structure. As it is just the opening, this position needs to be analysed more deeply.}) (9... Ne7 { with the idea of ...Nc6 and then ...Be7 was also an interesting try.}) 10. Nd2 $1 ({The sharp move} 10. e5 {did not give anything and after} dxe5 11. Nxe5 Qxd4 12. Bxd4 Bf5 {Black has a good position with the advantage of 2 bishops.}) 10... Be7 11. h3 e5 ({Now Black faces some problems with the bishop on g4. If he played} 11... Bh5 {then I was going to continue with} 12. f4 (12. g4 { was over-optimistic as after} Bg6 13. f4 e5 14. fxe5 dxe5 15. Qxe5 O-O { Black has more than good compensation for the sacrificed pawn.}) 12... e5 13. fxe5 dxe5 14. Qxe5 O-O 15. O-O Bd6 (15... Bg6 16. Nd5 Nxd5 17. exd5 Bf6 18. Rxf6 Qxf6 19. Qxf6 gxf6 20. c5 {with an obvious advantage for White.}) 16. Qd4 Re8 17. Nd5 Nd7 18. Rae1 {and in my opinion, here the compensation for the pawn is insufficient.}) 12. Qb6 ({In this position I spent quite lot of time while choosing between 12.Qb6 and 12.Qd3. To keep the queens on the board was more in my style of playing but I could not estimate the position after} 12. Qd3 Be6 13. O-O O-O 14. f4 exf4 15. Bxf4 Nd7 {Now I think that} 16. Nd5 { has to give a slight advantage for White, but in the game I preferred another move.}) 12... Qxb6 13. Bxb6 Be6 $6 (13... Bd7 {was a better move with the following ...Bd8 as the position should be about equal. The main idea is that now after 14.Nd5 Nxd5 15.cxd5 Black does not have to make one more move with a bishop as in the case with 13...Be6?!}) 14. Nd5 Bxd5 $6 ({Still I would prefer } 14... Bd8 15. Bxd8 Kxd8) ({or} 14... Rc8) 15. cxd5 Bd8 16. Bxd8 Kxd8 17. Rc1 {Now it is clear, that White has an advantage in the endgame, but it is quite difficult to transform it into a full point.} b5 $2 ({The move ...b7-b5 seems to be a mistake. Black weakens the important c6-square and gives one more move for White to improve the position. Anish wanted to prevent me from playing Nc4 at some moment, but the simple} 17... Rc8 {was stronger:} 18. Ke2 Ke7 19. Ke3 Nd7 20. Nb3 b6 {not allowing Na5 and it should not be difficult for Black to hold the position. Even though after} 21. Nd2 {there are still some problems.}) 18. Ke2 Kd7 19. Rc6 Rhc8 20. Rhc1 Rxc6 $2 ({It may be difficult to state, but as Anish and I realised after the game, the position after 20...Rxc6 is almost lost for Black. The correct move was} 20... Ng8 $1 {with the following lines:} 21. a4 Ne7 22. Rxc8 Rxc8 (22... Nxc8 23. axb5 axb5 24. Rc3 {and there are still problems with the b5-pawn.}) 23. Rxc8 Kxc8 24. axb5 axb5 25. Kd3 Kc7 26. Kc3 Ng6 27. Kb4 Kb6 $1 (27... Nf4 $2 28. Kxb5 Nxg2 29. b4 Nf4 30. Ka6 {the b-pawn is very dangerous.}) 28. g3 Nf8 29. Nb1 Nd7 30. Nc3 Nc5 31. Nxb5 Nd3+ ( 31... Nxe4 32. f3 Nxg3 33. Nxd6 {threatening to take the pawn on f7, or in the event of 33...f6 34.Nc4, followed by Kc5 White has chances to win the game as the b- and d-pawns will cause many problems.}) 32. Kc3 Nxf2 33. Nxd6 Kc5 34. Nxf7 Nxe4+ {and the game should end in a draw.}) 21. Rxc6 Ng8 22. a4 $1 Ne7 23. Rb6 {This is the difference! Without the exchange of rooks this move was impossible due to the hanging rook on c1.} Kc7 24. a5 Ra7 25. Nf3 {The idea is 26.Nxe5 dxe5 27.d6+ or, if Black replies with 25...Kd7, then 26.Ng5, that is why} f6 26. Ne1 {now the knight changes direction, coming closer to the b4-square.} Nc8 27. Rc6+ Kd7 28. Nd3 Ne7 29. Rc3 {The rook was forced to leave the 6th rank, but the black pieces are remaining passive. 29...Rc7 is bad in view of 30.Nb4, so the black rook cannot move, the king and knight must control the c-line. The next plan of White is to create new weaknesses in the position of Black, but on the other side.} f5 30. f3 f4 31. Kf2 Ra8 32. h4 g6 33. g3 fxg3+ 34. Kxg3 {Now lines on the king's side are going to be opened. My next idea is to play f4 at the right moment and then transform the pieces to the king's side, while Black will not have enough time for consolidation.} g5 { It is not easy to say, whether this move is good or a mistake. To be objective White is easily winning after 34...g5, but from the practical point of view Black tries to make the game being more unclear.} 35. hxg5 Rg8 36. Kh4 h6 37. gxh6 Rg1 (37... Rg2 {would be met by} 38. f4 exf4 39. Nxf4 {and now there is the possibility to play Rh3 after ...Rh2.}) 38. Rc1 ({Compared with 37...Rg2, now} 38. f4 {is not that effective as after} Ng6+ {the move Kh3 does not threaten to take the rook. But still after} 39. Kh5 exf4 40. Nf2 {the position is winning.}) 38... Rg6 39. f4 ({During the game I spent about 20 minutes on calculating} 39. Kh5 {which was the most logical move and the easiest way to win the game:} Rg3 (39... Rg2 40. Rh1 Ng6 41. h7 Nh8 (41... Ke7 42. Rc1 $18) 42. Rc1 Rg7 43. Rc6 $18) 40. Nb4 (40. Nf2 {is winning very easily, but for some reason this move did not come to my mind.}) 40... Ng6 41. Nxa6 Nf4+ 42. Kh4 Rg2 43. Rc7+ Ke8 44. Rg7 Ng6+ 45. Rxg6 Rxg6 46. Kh5 Rg2 47. Nc7+ Kd7 48. Ne6 {and White is winning, but in the game I decided that 39.f4 is safer. Unfortunately, the general rule, that after a long time of thinking the best move is rarely made, was true in my case.}) (39. Nb4 {is not so clear because of} Rxh6+ 40. Kg3 Rh8 {and after} 41. Nxa6 {Black takes the pawn back.} Ra8) 39... Rxh6+ 40. Kg3 exf4+ 41. Nxf4 Ng6 42. Ne6 (42. Rc6 {could give good chances for Black:} Nxf4 43. Kxf4 Rh2 44. Rxa6 Rf2+ 45. Ke3 Rxb2 {and as is well known, there is a tendency in rook endings with pawns that there are lots of positions which can be saved.}) (42. Nd3 {was also an interesting idea as after} Ne5 43. Nxe5+ dxe5 44. Rc6 Rh1 (44... Rxc6 45. dxc6+ Kxc6 46. b4 { White is winning}) 45. Rxa6 Rb1 46. Kg4 Rf1 47. Rb6 {in this rook ending I will have 2 pawns more. But the problem is that Black can play 42...Rh4!}) 42... Ke7 43. Nd4 Kf6 44. Nf5 (44. Rc6 {was one more move, but the following line should have been calculated until the very end:} Ke5 45. Nf3+ Kxe4 46. Rxd6 Ne7 {(this tricky move I saw in the game and stopped looking at this line) } 47. Ng5+ Ke3 48. Rxh6 Nf5+ 49. Kh3 Nxh6 50. d6 {and nothing can prevent the d-pawn from becoming a queen.}) 44... Rh5 45. Rc8 Rg5+ 46. Kf3 (46. Kf2 Ke5 47. Re8+ Kf4 48. Nxd6 Rh5 49. Re6 {is also winning, but I did not want to give Black this initiative with an active king.}) 46... Rg1 47. Nxd6 Rb1 (47... Ke5 48. Nf5 {and Re8.}) (47... Ne5+ 48. Ke3 $18) 48. Re8 Rxb2 49. Re6+ Kg5 (49... Kg7 50. Ne8+ Kf7 51. Rf6+ $18) 50. Nf7+ Kh5 51. Ke3 Rb3+ 52. Kd4 Rb4+ 53. Kc5 Rc4+ 54. Kb6 b4 (54... Rd4 55. Kxa6 b4 56. Kb7 b3 57. Rb6 Rxe4 58. d6 (58. Rxb3 $2 Re7+)) 55. Rxg6 {Black resigned in view of 55...Kxg6 56.Ne5+.} 1-0