Exciting game with sudden end. | CHESS AT THE BAG OF CATS

This trend of posting stuff from last season will soon end as the Easter Tournament will start in a few hours and I will have new games to analyze. In the meantime, here is the the game between the two players who scored 7/8 last year:
   [Event "Påskturneringen 2013"]  [Site "Norrköping"]  [Date "2013.03.31"]  [Round "7"]  [White "Gleizerov, Evgeny"]  [Black "Hillarp Persson, Tiger"]  [Result "1/2-1/2"]  [ECO "D19"]  [WhiteElo "2546"]  [BlackElo "2527"]  [Annotator "Tiger/140418"]  [PlyCount "45"]  [EventRounds "7"]  [EventCountry "SWE"]  [SourceDate "2011.03.24"]   1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O  O-O 9. Nh4 Nbd7 10. Nxf5 exf5 11. Bd2 Rc8 $5 ({I did not like} 11... Qa5 {  since it will be difficult for me to move the bishop from b4 in the future.}) (  11... a5 {is a normal move considering the Queenside structure, but I was not  sure that it would go well with exf5. The reason is that my only counterplay  is connected with the move c6-c5, when a5 will be quite a bad move, since my  b5 square will be weakened...}) 12. Ne4 Bxd2 (12... Qa5 $1 {seems better:} 13.  Bxb4 Qxb4 14. Nxf6+ Nxf6 15. Qb3 Qxb3 16. Bxb3 c5 17. Rfd1 cxd4 18. Rxd4 Rfd8 {  and Black had equalized in Arkell,K (2595)-Varga,P (2484)/France 2002.}) 13.  Nxd2 a5 (13... Nb6 14. Bb3 Nbd5 15. Nc4 Qe7 16. Re1 Rcd8 17. Rc1 g6 18. Ne5 Kg7  19. a5 a6 $1 20. Qc2 {with a balanced game, in Kuzmin,G (2530)-Ionov,S (2500)/  St Petersburg 1992.}) 14. Qb1 g6 15. b4 Rb8 16. bxa5 Qxa5 {During the game I  was quite convinced that I was worse here since I did not see any way for me  to stop White from playing Nd2-b3/c4, followed by a5-a6, but in reality it  seems that I'm just on time creating counter-threats on the Kingside.} 17. Qc2  (17. Nb3 Qc7 18. a5 Ne4 19. Qc2 Ndf6 20. h3 f4 21. Bd3 Rfe8 22. Rfe1 fxe3 23.  Rxe3 Ng5 {and White's pawns are no less weak than Black's.}) 17... Kg7 18. Rfc1  Rfe8 19. g3 h5 $5 {I sensed that my queenside would eventually end up in  tatters, so I decided to create something on the other side. The idea is to  play h4, hxg3 and then Qc7, Re8, Ng4 followed by a sacrifice on e3...} 20. Nf3  ({An illustrative line is:} 20. Be2 $5 h4 21. Bf3 hxg3 22. hxg3 Nf8 23. Nb3 Qc7  24. a5 Ne6 25. Bg2 Ng5 26. d5 $1 (26. a6 Rxe3 $1 $36) (26. Re1 Rh8 27. a6 bxa6  28. Nc5 Rb6 29. Nxa6 Qd6 30. Nc5 Ng4 $40 {and it seems that Black's  counterplay comes just in time.}) 26... Rxe3 27. Nd4 Rxg3 28. fxg3 Qxg3 29. Qb2  Rh8 30. Ra3 Qh2+ 31. Kf1 cxd5 {with a complete mess... which I'm quite happy  about.}) 20... Ne4 21. Qb2 Ndf6 22. Ne5 Ng4 $1 23. Nd3 {My opponent offered a  draw here and since I had only ten minutes vs thirty, I decided accepting was  the prudent thing to do.} ({I was not afraid of} 23. Nxf7 {because of} Nexf2  24. d5+ Kh7 25. Ng5+ Kh6 26. Ne6 Rg8 {with counterplay.}) ({The critical line  is} 23. Bxf7 $5 {, when} Rxe5 {was my intention during the game, but it seems  to fall a bit short of equality. However, it is very difficult to calculate  with precision.} (23... Re7 $1 {is stronger...} 24. Nxg4 fxg4 25. Bc4 Rf8 26.  Rc2 Ng5 27. Bf1 Nf3+ 28. Kh1 h4 29. d5+ Kh6 30. dxc6 bxc6 31. Qa3 Ref7 $44) 24.  dxe5 Nexf2 (24... Kxf7 25. f3 Qd2 26. Qb3+ Ke7 27. Qa3+ Kf7 28. Ra2 Qd5 29.  fxe4 Qxe4 30. e6+ Qxe6 31. Rb2 $14 h4) 25. e6+ Kh6 {I thought the king should  be on a dark square since the bishop is on a White one... no deeper thoughts  than that ;)} (25... Kh7 26. e7 Nh3+ 27. Kf1 (27. Kg2 Ng5 $36) 27... Qa6+ 28.  Qe2 Nxe3+ (28... Nxh2+ 29. Ke1 Qa5+ 30. Kd1 Ng4 31. e8=Q Rxe8 32. Bxe8 Qd8+ 33.  Kc2 Qxe8 {and the King would be better on h6 since the b-pawn will not fall  with check!}) 29. Ke1 Qa5+ 30. Qd2 Qe5 31. Ra3 Nd5+ 32. Qe2 Qxe7 33. Qxe7 Nxe7  34. Re3 $18) 26. e7 Nh3+ 27. Kf1 $1 {I missed this.} Qa6+ 28. Qe2 Nxh2+ 29. Ke1  Qa5+ 30. Kd1 Ng4 31. e8=Q Rxe8 32. Bxe8 Qd8+ 33. Kc2 Qxe8 $44 {I would not  mind playing this position with Black. The White King is somewhat insecure.}) (  23. Nd3 {If I had not been short on time here I would probably have tried} Ng5  24. Kg2 (24. h4 Nh3+ 25. Kg2 Nhxf2 26. Nxf2 Nxe3+ 27. Kg1 Qc7 28. Nh1 f4 {with  a nasty attack.}) 24... Rxe3 $1 25. fxe3 Nxe3+ 26. Kf2 Nxc4 27. Rxc4 Qd5 28.  Ne5 f6 {and it is White who has to think about equality.}) {1/2-1/2}