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Ding Liren vs Lu Shanglei
"Wing Ding" (game of the day Apr-10-2012)
Chinese Chess Championship (2012), Xinghua CHN, rd 5, Mar-31
Queen's Gambit Declined: Vienna Variation (D39)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 4 ·  Later Kibitzing>
Apr-11-12
Premium Chessgames Member
  AylerKupp: Analysis of 14...d4! (part 2 of 2)

In the latest CCRL 40/40 engine tournament rankings (http://computerchess.org.uk/ccrl/40...) Ivanhoe 9.46h was evaluated for the first time and was highly ranked (5/241 for 64-bit version, 7/241 for the 32-bit version), so I decided to let it have a go at the position after 8...Bxc3 9.Ba3 Bxa1 10.Qxa1 Qf6 11.Qc1 Nc6 12.d5 exd5 is viable for black if 13.Re1+ Kd8 14.Bb2 d4! 15.Nxd4 Nxd4 16.Bxd4 Qxd4.


click for larger view

But at d=27 it couldn't come up with anything better than a slightly different draw by repetition than Rybka: 17.Rd1 Qxd1+ 18.Qxd1+ Ke7 19.Qe2+ Be6 20.Bxe6 fxe6 21.Qe5 Rad8 22.Qxg7+ Kd6 23.Qd4+ Kc6 24.Qa4+ Kb6 25.Qb4+ Kc6 26.Qa4+ etc. and all its other lines favored Black.


click for larger view

Spike 1.4, which often comes up with interesting and original lines that other engines don't, didn't this time, settling for yet another slightly different version of a draw by repetition at d=31 after 17.Rd1 Qxd1+ 18.Qxd1+ Ke7 19.Qd5 Be6 20.Qc5+ Kd7 21.Qd4+ Ke7 22.Qc5+ etc. and all its other lines favored Black. And sliding forward and starting the analysis after 26.h4 doesn't change Spike's evaluation, all moves result in evaluations of [0.00] at d=29.

So I think that I agree with <chopin4525> that the line 8...Bxc3 9.Ba3 Bxa1 10.Qxa1 Qf6 11.Qc1 Nc6 12.d5 exd5 is viable for black provided that, as is often the case, he gives up some of his extra material to blunt White's attack. And that if White overreaches in an attempt to get more than a draw, he will find himself in the inferior position. I need to amend my conclusion in my last post, "The position of White's bishops reminds me of the Danish gambit. It's viable for Black but a single mistake is usually fatal" to add "for either side." Still, I think that Black has the better practical chances regardless of the engines' evaluations.

A fun game to play over and analyze.

Dec-12-12  qqdos: <newzild> Is the pun not the lament of Lu's mother!?! This game impressed the panel of Chess Informant to win Best Game of Volume 115.
Dec-22-12  notyetagm: http://www.chesscafe.com/informant/...
Dec-23-12  notyetagm: Ding Liren vs Lu Shanglei, 2012

<qqdos: <newzild> Is the pun not the lament of Lu's mother!?! This game impressed the panel of Chess Informant to win Best Game of Volume 115.>

Yes, an unbelievably aggressive *and* sound attacking game by Ding Liren. Leko did say that the young man is a genius, or words to that effect I believe. :-)

http://www.chesscafe.com/informant/...

Dec-25-12  notyetagm: Game Collection: DING LIREN'S BEST GAMES
Dec-25-12  notyetagm: Game Collection: DING LIREN'S BEST GAMES

Ding Liren vs Lu Shanglei, 2012 Voted Best Game of Chess Informant 115, 10-pts from LarryC

Jun-25-14  notyetagm: Ding Liren vs Lu Shanglei, 2012

----

<Added on 06.25.2014

Attack with LarryC: Liren Ding’s Lifto-Palooza>

https://webcast.chessclub.com/icc/i...

Mar-31-18  ChessHigherCat: I'm afraid I'll have to interrupt my bragging streak here but those of you who call yourself tacticians should have no problem in solving this straightforward mate in 25.
Mar-31-18  Toribio3: Ding Liren will be the next world chess champion, after the Carlsen-Caruana Chess Championship match in November 2018! Why? In the candidates matches, he is the only who did not suffer any defeat. Besides, China is the next superpower.
Mar-31-18  Walter Glattke: The puzzle is 24.-Qe7 25.Rf6 Bd7 26.Rxg7+
Qxg7 27.Rg6 Qxg6 28.Qxg6+ +- I found no better continuation
Mar-31-18
Premium Chessgames Member
  Penguincw: Haven't attempted or solved a <cg> puzzle in a while. Decided to give it a crack here.

Though it's Saturday, I have like no chance. I got the triple capture on g6 though. I also had thoughts of trying to bust open the position with f5.

I also see this is an old POTW, and I made a comment on Mar/31/2012 (wow, exactly 6 years ago) where it was also the Saturday puzzle. No memory of so, and no indication if I solved it or not.

Mar-31-18  diagonalley: ...not too difficult for a saturday, given that the double sacrifice is screaming at you... meanwhile it's fascinating to note that carlsen & caruana meet in round 1 at baden baden (dead cert draw!?!)
Mar-31-18  gofer: I couldn't get this to work, so <Nil Point> today. My guess was...

<14 Bxg6 fxg6>
<15 Nxg6 ...>

15 ... hxg6?
16 Qxg6 Kh8
17 Bg5! +-

<15 ... Qc7>


click for larger view

Okay, now things are far more tricky. I can't see an obvious way forward. I looked at <16 Ne7++ Kh8 17 Nxc8 Rxc8 18 Rae1>, but its not obvious to me that that is winning. So I must have missed something.

~~~

Okay, so I saw the line played - big whoop! No where near really...

Stockfish likes the following - which really does make this a <Saturday> POTD.

+6.93 (28 ply)

1.Ne5+ Bg7
2.Qh5 Rf8
3.Rf3 Bxh6
4.Qxh6 Rf7
5.Qh5 Nc6
6.Rg3+ Kf8
7.Nxf7 Qxf7
8.Qh6+ Ke8
9.Rg7 Qf8
10.Qh5+ Kd8
11.Rxh7!


click for larger view

Mar-31-18
Premium Chessgames Member
  thegoodanarchist: The GOTD pun is so stupid it's funny.
Mar-31-18  patzer2: Found the first three moves of today's Saturday (14. ?) puzzle easy enough. However, in attempting to calculate it all out ahead without playing it out move-by-move, I missed 17. Bg5! +- (+3.79 @ 34 ply, Stockfish 9 analysis of move 17...?).

Instead, I planned to go with 17. Qh5 ± (+0.75 @ 22 ply, Stockfish 9 analysis of move 17...?).

Mar-31-18  mel gibson: I saw the first 4 moves but wasn't sure about the rest.

Stockfish fights harder & gives only
a minor piece advantage or 3 pawns to White:

14.Bxg6

(14. Bxg6 (♗d3xg6 h7xg6 ♘e5xg6 f7xg6 ♕g4xg6+ ♔g8-h8 ♗h6-g5 ♖e8-f8 ♖f1-f3 ♗f6xg5 ♖f3-h3+ ♗g5-h4 ♕g6-h5+ ♔h8-g8 ♖h3xh4 ♕d8xh4 ♕h5xh4 ♘b8-d7 ♕h4-g5+ ♔g8-f7 f4-f5 e6xf5 ♕g5xf5+ ♘d7-f6 ♕f5xc5 ♗c8-d7 ♖a1-f1 ♔f7-g6 ♕c5-c7 ♖a8-e8 ♕c7xb7 ♖e8-e3 c3-c4 ♖f8-f7 ♕b7xa7 ♗d7-e6 ♕a7-a5 ♘f6-g4 ♖f1xf7 ♔g6xf7 d4-d5 ♗e6-f5 h2-h3 ♘g4-f6 ♕a5-a7+ ♖e3-e7 ♕a7-f2 ♔f7-g6 g2-g4 ♗f5-d3 ♕f2-d4 ♖e7-e1+ ♔g1-f2 ♖e1-f1+ ♔f2-e3 ♗d3-e4 ♕d4-b6 ♖f1-f3+ ♔e3-d4) +3.45/37 200)

score for White +3.47 depth 37

Mar-31-18  patzer2: A pun about the tragic case of wild dogs eating a baby and the mother being framed for murder is IMO not amusing.

Perhaps "Demolition man" about a fictional movie character coming back to life from a long cryogenic sleep would make for a better pun.

Mar-31-18  Marmot PFL: Great game! It's always good to remember that while we know that there is a solution and that a sacrifice will probably work the players get no such assurance and are taking considerable risks (somewhat minimized here as white could settle for perpetual check).

As far as the title goes the actual quote was "Dingos took my baby". If so they may well have eaten the child, but there are several cases of human children raised by animals (or at least claimed to be), such as the "wolf boy of Moscow" or the girl abandoned in the Venezuelan rain forest and raised by capuchin monkeys.

Mar-31-18  saturn2: <Marmot PFL..while we know that there is a solution..> Unless it is a spoiler.
Mar-31-18
Premium Chessgames Member
  malt: First tried 14.f5, to no avail, then
14.N:g6 hg6 15.B:g6 fg6 16.Q:g6+ Kh8 17.Bg5 Rf8 could not see

an advantage, even with 18.Rf3

Mar-31-18  Walter Glattke: Now tell me, where is the mate after 24.Rxg6.
Mar-31-18
Premium Chessgames Member
  agb2002: White is one pawn down.

Black threatens cxd4.

White can start an attack against the black king with Bxg6, Nxg6, Nxf7 or f5. In the case of 14.Nxg6 (14.f5 Bxe5 15.exf5 Qxd3; 14.Nxf7 Kxf7 15.f5 exf5 16.Bxf5 Bxf5):

A) 14... hxg6 15.Bxg6

A.1) 15... fxg6 16.Qxg6+ Kh8 17.Rf3

A.1.a) 17... Rg8 18.Qh5

A.1.a.i) 18... Qd5 19.Bg5+ Kg7 20.Qh6+ Kf7 21.Qxf6+ Ke8 22.Qe7#.

A.1.a.ii) 18... Qd(e)7 19.Bf8+ Qh7 20.Rh3 Rg7 (20... Qxh6 21.Rxh6#) 21.Bxg7+ Kxg7 22.Qxh7+ wins.

A.1.a.iii) 18... Qe8 19.Bg7+ Kxg7 20.Rg3+ Bg5 (20... Kf8 21.Rxg8+ wins) 21.Qxg5+ Kf7 22.Qh5+ Kf6 (22... Ke7 23.Qh7+ wins the rook on g8) 23.Qh4+ Kf5 (23... Kf7 24.Qh7+ wins) 24.Re1 Nc6 (24... Rxg3 25.Re5+ Kg6 26.Qh5+ followed by 27.Qxe8 and the double threat hxg3 and Qxc8) 25.Rg5+ Kf6 (25... Rxg5 26.Qxg5#) 26.Rxg8+ wins.

A.1.a.iv) 18... Rg7 19.Bxg7+ Kxg7 (19... Kg8 20.Qh8+ Kf7 21.Bxf6 Qxf6 22.Qxc8 wins decisive material) 20.Rg3+ Bg5 (20... Kf8 21.Qh7 wins) 21.Rxg5+ Kf6 22.Qh7 wins (22... Qf8 23.Rg6+ Kf5 24.Rg8+ and 25.Rxf8).

A.2) 15... e5 16.Bf5+ Kh8 17.fxe5

A.2.a) 17... Rg8 18.Qh3 and White looks very good due to the threats Bf8#, Bg5+ and exf5 (18... Bxf5 19.Rxf5 Bh4 20.Rh5).

A.2.b) 17... Bxf5 18.Rxf5 as in A.2.a.

A.3) 15... Kh8 16.Bxf7 followed by Qh5 looks advantageous for White.

B) 14... fxg6 15.Bxg6

B.1) 15... hxg6 16.Qxg6+ transposes to A.1.

B.2) 15... Re7 16.Bc2+ Kh8 (16... Bg7 17.Bg5 recovers material) unclear.

C) 14... e5 15.Ne7+ Kh8 16.Nxc8

C.1) 16... Qxc8 17.Qxc8 Rxc8 18.dxe5 wins a pawn.

C.2) 16... e4 17.dxc5 looks rather complex. For example, 17... exd3 18.Nd6 Re7 19.Nf5 seems to win the exchange.

I'm not sure, but I'd probably play 14.Nxg6.

Mar-31-18  ChessHigherCat: <Marmot PFL: As far as the title goes the actual quote was "Dingos took my baby". If so they may well have eaten the child, but there are several cases of human children raised by animals (or at least claimed to be), such as the "wolf boy of Moscow" or the girl abandoned in the Venezuelan rain forest and raised by capuchin monkeys.>

Not to mention Romulus and Remus, who were nursed by a she-wolf and lived happily ever after, until Romulus killed Remus for jumping over his fence, just so he could say: Thus shall we slay all enemies who jump over our walls!

Mar-31-18  landshark: <diagonalley> Not too difficult for a Saturday if you lead off with the right minor piece - ! I chose 14. Nxg6 with much of the same reasoning as <agb2002> and liked my chances! Not sure if it's sound however. A lot of thinking went into choice of first move because Black has lots of defensive options. What I did see was the transposition into the game continuation, to come in with 17. Bg5! winning. I saw it all the way out to 20 Rf3 and felt I had a win there. But that's the problem with us weaker players - we can see the low hanging fruit, but not know how to pick it! Anybody with an engine got analysis on 14. Nxg6?
Mar-31-18  landshark: I think this was one heck of a good Saturday puzzle (:
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