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Li Chao vs Bu Xiangzhi
"Tangled Up in Bu" (game of the day Jul-26-2017)
Chinese Championship (2009), Xinghua Jiangsu CHN, rd 7, Jun-02
Russian Game: Nimzowitsch Attack (C42)  ·  0-1
ANALYSIS [x]

FEN COPIED

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sac: 17...Bxd5 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jun-02-09  jon01: After 21. Kxd1 Bf3+ and mate to follow. This reminds me of the most famous game by Richard Reti. Reti vs Tartakower, 1910
Jun-02-09
Premium Chessgames Member
  luzhin: Even assuming Li didn't know that game, 18.Qxe7 was an astonishing blunder, especially as after 18.b3 White would be fine.
Jun-02-09
Premium Chessgames Member
  parmetd: reminds me of Aron Nimzowitsch game in 1910 against Ryckhoff Nimzowitsch vs NN, 1910
Jun-03-09
Premium Chessgames Member
  stoy: This looks like a 19th century amateur vs master game.
Jun-04-09
Premium Chessgames Member
  notyetagm: <jon01: After 21. Kxd1 Bf3+ and mate to follow. This reminds me of the most famous game by Richard Reti. Reti vs Tartakower, 1910>

That was my *exact* first thought when I played over this game.

Reti vs Tartakower, 1910

Jun-09-09
Premium Chessgames Member
  notyetagm: 20 ... ?


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20 ... ♕a1x♖d1+!! 0-1


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(CONT)
21 ♔d2x♕d1 <decoy: d1>


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(CONT)
21 ... ♗d5-f3++ Δ 22 ... ♖d8-d1# <double check!!>


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Jun-09-09
Premium Chessgames Member
  notyetagm: Bu Xiangzhi's brilliant combination culminating in the exquisite 20 ... ♕a1x♖d1+!! is the best example of <DOUBLE CHECK> that I can recall in recent memory.
Jun-09-09
Premium Chessgames Member
  notyetagm: Game Collection: Discovered attacks

20 ... Qa4xRd1+!! Black d8-rook,d5-bishop control d1-sq *TWICE*

As seen in <WETESCHNIK>.

Jan-13-10
Premium Chessgames Member
  Phony Benoni: A very common tactical shot that's at least a half-century older than Reti v. Tartakower; for instance, see Maczuski vs Kolisch, 1864.

I'm sure Li Chao had seen the idea before, but what probably threw him off was the queen sacrificing herself along the first rank instead of the d-file. That's very unusual.

Jan-14-10
Premium Chessgames Member
  tpstar: Also J Schulten vs Horwitz, 1846
Jan-14-10  Atking: <luzhin: Even assuming Li didn't know that game, 18.Qxe7 was an astonishing blunder, especially as after 18.b3 White would be fine.> Do you mean equal? 18.b3 Qc6 No ghost 19.QxBe7? Rhe8.
Apr-10-10  feitang: Pun for this game: "Reti Legacy"
Jul-26-17
Premium Chessgames Member
  iking: 20. .. Qd1 - surely this sac jolted Li to the bones.
Jul-26-17
Premium Chessgames Member
  offramp: Today's pun is based on the humorous Bob Dylan song called <Tangled Up In Blue>. The song tells the story of a woman he bumps into coming out of a chlamydia clinic. They go to a cinema intending to watch Death Wish 3
"...But we watched Troll 2,
Tangled up in blue."
Jul-26-17
Premium Chessgames Member
  Once: Fascinating game. The crunch point comes after black has played 17...Bxd5 getting to this position:


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Black is offering up the Be7 in return for a juicy queen check on a2.

Should white accept the offered bishop? It would mean having his king chased to the d file, but if he can weather the storm he could end up ahead by a bishop. So white will have had to calculate 18. Qxe7 Qxa2+ 19. Kc1 Qa1+ 20. Kd2 and we get to here:


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We know that black wins with the 19th century style 20...Qxd1+, but white would probably have been working through all the ways that black has to give a discovered check. He has to convince himself that this line is playable before he plays 18...Qxe7.

Fritzie confirms that 20...Qxd1+ is the only move for black which gives him an advantage. If black hadn't spotted this move, all of his discovered checks would have been defused by white blocking with Bd3.

So that's actually some pretty complicated calculating that white had to do ... and then the bombshell that black had seen further.

And both players had to do all that back on move 17 or 18. White calculated pretty well to play the line that he did. Black calculated just that little bit better.

The ironic thing is that a club player would probably have avoided 18. Qxe7 on principle, without any of this calculation!

Jul-26-17
Premium Chessgames Member
  takchess: @offramp ,in a Rolling Stone Magazine interview Dylan was quoted the movie was actually the Smurfs (thus the blue) but had to change the words to Troll 2 in order to rhyme.
Jul-26-17
Premium Chessgames Member
  offramp: <parmetd: reminds me of Aron Nimzowitsch game in 1910 against Ryckhoff Nimzowitsch vs NN, 1910.>

This also reminded me of a Nimzowitsch game, but it was this one: Nimzowitsch vs Alapin, 1914

Jul-26-17  RandomVisitor: After 17...Bxd5


click for larger view

Stockfish_17061704_x64_modern: <4 hours computer time>

<+1.24/49 18.b3 Qc6 19.Bd3> Bf6 20.Bxf6 Qxf6 21.Qxc5+ Kb8 22.f3 Qd6 23.Qxd6+ Rxd6 24.Kb2 Kc7 25.Rde1 Rgd8 26.Re7+ R6d7 27.Re3 Bc6 28.Rhe1 Rd5 29.a3 Kb6 30.Re7 R8d7 31.Rxd7 Rxd7 32.Kc3 Bd5 33.Bf5 Rd8 34.Re7 Kc6 35.h5 a5 36.a4 Kd6 37.Re1 b6 38.Re3 Rf8 39.Kd4 Bc6 40.Bd3 Rd8 41.Be4 Ke6+ 42.Kc4 Bd7 43.Bc6+ Kf6 44.Bxd7 Rxd7 45.Kb5 Rd2 46.Kxb6

+0.80/48 18.a3 Qc6 19.Bd3 Bd6 20.Bb5 Ba2+ 21.Kxa2 Qxb5 22.Be5 Bxe5 23.Qxe5 Qc4+ 24.Kb1 f6 25.Qe7 Qg4 26.Qxc5+ Kb8 27.Rxd8+ Rxd8 28.g3 Qe2 29.Qf5 b6 30.b3 Rd2 31.f3 Rd4 32.Kb2 Kc7 33.h5 Qe3 34.Ka2 Qc3 35.Rh4 Rxh4 36.gxh4 Kd6 37.a4 Qc5 38.Qg6 Qc3 39.Qe4 Qe5 40.Qd3+ Ke7 41.Qc4 Qc5 42.Qxc5+ bxc5 43.Kb2 Ke6 44.Kc3 Ke5 45.Kc4 Kf4 46.Kxc5 Kxf3

Jul-26-17  dumbgai: If Stockfish's evaluation of +1.24 for 18. b3 is accurate, that means Qxe7?? is an astonishing blunder. Not only does it turn an advantageous position for white into a forced loss, but the line is very obvious and forcing. The only explanation is that Li Chao could not find 20...Qxd1+.
Jul-27-17
Premium Chessgames Member
  perfidious: A familiar pattern executed in an unusual way.
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