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Zhao Jun vs Xiu Deshun
"Jun is Busting Out All Over" (game of the day Jan-16-12)
Chinese Championship (2011)  ·  Nimzo-Indian Defense: Saemisch. O'Kelly Variation (E26)  ·  1-0
To move:
Last move:

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Given 11 times; par: 47 [what's this?]

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find similar games 3 more Zhao Jun/Xiu Deshun games
sac: 16.Bxd6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jan-16-12
Premium Chessgames Member
  Shams: <xthred> Nope-- 20.Qh5 would instantly settle.
Jan-16-12  LoveThatJoker: Great tactics in this game by White.

LTJ

Jan-16-12
Premium Chessgames Member
  FSR: An amazing game <and> an early candidate for Worst Pun.
Jan-16-12  Penguincw: It's about time this game received a pun.
Jan-16-12
Premium Chessgames Member
  Eduardo Bermudez: I enjoy this chessgame every time that I can see it !!
Jan-16-12  ferri1234: what happens if 25 ....Kf8??
Jan-16-12
Premium Chessgames Member
  Phony Benoni: <ferri1234> After <25...Kf8>:


click for larger view

My guess would be 26.dxe6, when Black can hardly expect to survive the pressure on f7.

Jan-16-12  cydmd: <ferri1234>, White simply puts more pressure with

26.dxe6

And there's no defense against 27.Rxf7+.

If 26... Rg8 then 27.Rxf7+ Nxf7 28.Rxf7+ Ke8 (28... Qxf7 29.Qxf7#) 29.Qxg8#

Jan-16-12  RestlessLife: fantastic play by white.
Jan-16-12
Premium Chessgames Member
  Gilmoy: <Anatoly21: 18.Rf6!! (Two pieces down and moving the rook? Amazing move!)> White did net a pawn, so it's a 5-point "sac" offer, similar to a Rf6 to deflect g7 (or Bg7) outright. The structural pattern is to blockade f7: it (a) cuts the board in half; (b) prevents f5 defending h7.

Tal vs Leonov, 1949 (a,b)

Fischer vs Benko, 1963 (b)

Anand vs Bareev, 1993 (a)

Rare but known: White is "only" in the Tal/Fischer/Anand class :)

Jan-16-12  Galaxy7: A remarkable game ! GM Jun doesn't care about anything else other than slashing his opponent's throat ... merciless assassin this Chinese GM !
Jan-16-12  cludi: My analysis of this great game

http://www.youtube.com/watch?v=p4pe...

Jan-16-12  rudiment: 16. Bxd6 ... 17. e5 was a splendid attack. Not sure about all the superlatives being bandied around about this game but it is compelling to watch the perfect exercise of control from Bxd6 onwards.
Jan-16-12  drpoundsign: I LIKE the bishop and queen sacs. Good mating net. No mathematical endgames (which give me a headache)
Jan-16-12  erniecohen: Actually, I think Black was fine until 15...Nh5. After 15...e5, he seems to be relatively safe.
Jan-16-12
Premium Chessgames Member
  Shams: <erniecohen> 15...e5 16.dxe5 and what's your idea, out of curiosity?
Jan-17-12  shivasuri4: <Shams>,that should be followed with 16...dxe5.17.Bxe5 is not good because of 17..Ng4 exploiting the e3 weakness.
Jan-17-12
Premium Chessgames Member
  Shams: <shivasuri4> Thanks, it's obvious now that White should not take on e5 even once.
Jan-17-12  rilkefan: Interestingly, stockfish likes 16.Nf4 (+1.6) at a depth of 24 (1 Gnode), though given the shifting evaluation at less depth I should let it think a lot longer.

I then played 16.Bxd6 and let it run 1 Gnode (a depth of 27) and it thinks black is better by -0.7. It's planning on 18.Nf4. I then played up to 18.Ng3. Here it's looking at a perpetual or a slight edge for white after 19.hxg3 f5 (1 Gnode, depth 27). After I played 19.Rf6 it soon (depth of 22) decided white had a sizable advantage (+1) - at 1.5 Gnode (depth 27) it thinks black should play 19...Bxc4 and exchange the white LSB, eval still fluctuating from 1 to 1.7.

At 1.5 Gnode, a depth of 26 (as shown above, not enough at all in this game), it thinks 15...e5 is even, with a main line of 16.Be1 Nh5 17.Ng3 Nf4 18.Nf5 or 16.Nc1 Bxc4 17.de de 18.Qf3 Nd7 or 16.Rf5... After 16.de de 17.Bxe5 it seems to think ...Ng4 is even.

Conclusion: this is a game needing more calculation time than I have patience for or human input above patzer level.

Jan-17-12
Premium Chessgames Member
  kevin86: The attack is SO strong,that even the queen is expendable.
Jan-30-12
Premium Chessgames Member
  Eduardo Bermudez: The moves 16, 19, and 25 are astonishing !!
Apr-25-12
Premium Chessgames Member
  Eduardo Bermudez: The moves 16, 19, and 25 are astonishing !!
May-08-13  Mudphudder: What about this continuation?

24.Qh7+ Kf8
25.Be4 Qc7
26.BxR

Would this have worked as well?

May-08-13  Nerwal: <What about this continuation?

24.Qh7+ Kf8
25.Be4 Qc7
26.BxR

Would this have worked as well?>

This also wins quite easily. But 24. d5 is stronger. White goes for the throat and black cannot defend his king.

Feb-28-14
Premium Chessgames Member
  DcGentle: <The sacrifice <16. Bxd6!!>>


click for larger view

White to move played <16. Bxd6!!>.

White's 16th move actually is not easily detected by any current engine. I would be surprised, if any of them found this sac because of the ensuing <19. Rf6!>, a positional move, which is starting checkmating actually. Recently I looked at the following analysis again, which I did some years ago, showing that the sac really deserves 2 exclamation marks, because very beautiful mate lines can be found, all of which are much shorter than any engine suggestion. So objectively seen, <16. Bxd6!!> is the best move. Checkmate should follow around move 50. I can claim this, because the following lines are only the tip of the iceberg of my analysis, which lasted several weeks and comprises more than 500 lines. But I was curious to find the truth about the quality of this sac.

Enjoy, <DC>
________________________________

[Event "Chinese Championship"]
[Site "Xinghua Jiangsu CHN"]
[Date "2011.04.08"]
[Round "9"]
[White "Zhao Jun"]
[Black "Xiu Deshun"]
[Result "1-0"]
[ECO "E26"]
[WhiteElo "2580"]
[BlackElo "2508"]
[PlyCount "63"]
[EventDate "2011.03.30"]
[Annotator "DcGentle"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Bd3 Nc6 8. Ne2 Ba6 9. e4 O-O 10. Bg5 h6 11. Bh4 g5 12. Bg3 d6 13. f4 Na5 14. fxg5 hxg5 15. O-O Nh5 16. Bxd6

(16. Nf4 {is the engine proposal. Here there is a feasible line:} Nxf4 17. Bxf4 f6 18. Qh5 Qd7 19. Bxd6 Rf7 20. e5 f5 21. d5 Bxc4 22. dxe6 Bxe6 23. Bb5 Qc8 24. Qxg5+ Rg7 25. Qf6 a6 26. Be2 Qe8 27. Rab1 b5 28. Rbd1 Rf7 29. Qh6 Rh7 30. Qf4 Nb7 31. Rf3 Kh8 32. Rg3 Qf7 33. Bf3 Re8 34. Bxb7 Qxb7 35. Bxc5 Qc7 36. Be3 Qf7 37. Rd6 Qh5 38. Rh3 Qg6 39. Rxh7+ Kxh7 40. Rxa6 Kg8 41. h4 {White is winning, but checkmate is far away.})

16... Qxd6 17. e5 Qe7 18. Ng3 Nxg3 19. Rf6 Kg7

(19... Rfc8 20. hxg3 Qf8 21. Qh5 Qg7 22. Raf1 Rc7 23. Rh6 Bxc4 24. Rh7 Bxd3 25. Rxg7+ Kxg7 26. Qxg5+ Kf8 27. Rf4 Rac8 28. d5 Re7 29. d6 Rb7 30. d7 Rxd7 31. Rh4 Bh7 32. Rxh7 Rd1+ 33. Kh2 Ke8 34. Qg8+ Kd7 35. Rxf7+ Kc6 36. Qxc8+ Kb5 37. Qe8+ Nc6 38. Qxe6 Rd2 39. c4+ Ka4 40. Rf3 Nb8 41. Qe8+ Rd7 42. e6 a6 43. exd7 Ka5 44. a4 Nc6 45. Qe1+ Nb4 46. Ra3 b5 47. d8=B#)

20. Qg4 Rg8 21. hxg3 Nb7

(21... Kf8 22. Raf1 Rg7 23. Qh5 Bxc4 24. Bxc4 Nxc4 25. d5 Nxe5 26. Rxe6 Qd8 27. Rxe5 Kg8 28. Rff5 f6 29. Re6 Rf7 30. Rxg5+ fxg5 31. Rg6+ Rg7 32. Rh6 Rh7 33. Rxh7 Qf6 34. Rh6 Qxh6 35. Qxh6 g4 36. Kf2 b5 37. Ke3 Rf8 38. Qg6+ Kh8 39. d6 b4 40. axb4 cxb4 41. cxb4 a5 42. bxa5 Rf7 43. d7 Re7+ 44. Kf4 Rxd7 45. Qe8+ Kg7 46. Qxd7+ Kf6 47. a6 Kg6 48. Qe7 Kh6 49. Kf5 Kh5 50. Qh4#)

22. Raf1 Nd8 23. Qe4 Qb7

(23... Bb7 24. d5 Kf8 25. Qh7 Rg7 26. Qh8+ Rg8 27. Qh6+ Ke8 28. d6 Qd7 29. Bg6 Qc6 30. Rxe6+ Nxe6 31. Bxf7+ Kd8 32. Qf6+ Kc8 33. Bxe6+ Kb8 34. Bd5 Qd7 35. Bxg8 a5 36. Be6 Qc6 37. Bd5 Qd7 38. Qf7 Qxf7 39. Rxf7 Bxd5 40. cxd5 a4 41. e6 Kc8 42. Rf8+ Kb7 43. Rxa8 Kxa8 44. e7 Ka7 45. e8=Q Ka6 46. Qc6 Ka7 47. d7 g4 48. d8=Q Ka6 49. Qdxb6#)

24. d5 Rh8 25. Qg6+ fxg6 26. Rxg6+ Kh7 27. Rxg5+ Kh6 28. Rg6+ Kh7 29. Rg4+ Kh6 30. Rf6+ Kh5 31. Rh4+ {Black resigned.} Kg5 32. Rg6# 1-0
________________________________

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