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Ding Liren vs Wang Hao
Chinese League (2011), Chengdu CHN, rd 4, May-26
Queen's Gambit Declined: Ragozin Defense (D38)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-19-11  sevenseaman: My ISP let me down again today. Its just been restored.

Looks equal, a P off, yes.

29. g4 looks a good idea.

<29. g4 Bg6 30. Re7+ Bf7>

Stuck. Can see no forcing moves. Nothing. 31. Re6 with d5 backing does not seem to give me any advantage.

Another tack I have in mind. With same idea, how about 29. Bd3? Let us see.

29. Bd3 Bxd3 30. Re7+ Kg6 31. Qxd3+ Kh5 (looking good now) 32. Rh7+ Kg4 33. Qe4+ Qf4 34. Qe6+ Qf5 35. Re4+ Kg3 36. Rh3+ Qxh3 37. Qxh3+ (oh thats a mate!). On second thoughts Qe5+ too. Wonderful!

Looks too good to be true. I do not see any catch but you never know. I was tempted twice but its good I left the g2 P in its place as it gives me the pleasure of an alternative mate.

So my line would be;

<29. Bd3 Bxd3 30. Re7+ Kg6 31. Qd3+ Kh5 32. Rh7+ Kg4 33. Qe4+ Qf4 34. Qe6+ Qf5 35. Re4+ Kg3 36. Rh3+ Qxh3 37. Qxh3#>

~~~~~~~~~~~~~~~~~~~~

Its very different. May be my ISP should have stayed down for another day. I have to see where I went astray; the week was going nice until now.

Nov-19-11  sevenseaman: Thanks <David2009> Crafty wasted no time in showing me the error of my line. It gives White an immediate check with f2. Its mayhem after that. I missed this in my solution.

Wait a minute. This f2 check? Is it not possible in the text line?

Nov-19-11  abuzic: <gofer: First of all I looked at Re7+...............

<29 g4 f2+>
<30 Qxf2 Bg6>
<31 Qxa7+ Kh8>
<32 Re6 Qf4>
<33 R1e4!! Qg3+>
<34 Bg2 Qd3>
<35 Re3 > winning>

"I deleted unnecessary variations and corrected some move numbers."

But black plays after
<34.Bg2>

34...Rxd5! and is better than white with big chances for win, for example:

35.Re1
<35.Qe7 Rd1+ 36.Re1 c2 wins; 35.Qf2 Rd1+ 36.Re1 Qxf2 37.Kxf2 c2 wins>

35...Rd2
36.Qb7
<36.36.R6e2 c2!; 36.R1e2 c2 or...Rd1+ and black wins (actually will force mate!)>

36...Qf2+
37.Kh1
<37.Kh2 c2>
37...c2
38.Qf3
<38.Qc6 Rd1; 38.Re7 Qh4+ 39.Kg1 Qxe1+ 40.Rxe1 Rd1 41.Qb2+ Kh7 42.Rf1 Rf8>

38...Qxf3
39.Bxf3 Rf8
40.Rxg6 Rxf3
41.Rc6 Rd1
42.Rc8+ Kg7
43.Rc7+ Rf7
44.Rxc2 Rxe1+.

Nov-19-11  sethoflagos: <<sevenseaman:>...This f2 check? Is it not possible in the text line?> Following <gofer> and <abuzic> try these on Crafty:

29.Bd3 f2+ 30.Qxf2 Bxd3 31.Re7+ Kg6 32.R1e6 Rgf8 33.Qg3 Rxd5 34.Qh3 Qxe6 35.Qxe6+ Rf6 36.Qxd5

29.g4 f2+ 30.Qxf2 Bg6 31.Re7+ Bf7 32.Rxf7 Qxf7 33.Qd4+ Kh7 34.Bd3+ Rg6 35.d6 Qf4 36.Bxg6+ Kh6 37.Qxf4 gxf4 38.Re6

Nov-19-11  polarx: <sevenseaman> You mean something like this for example:

29. g4, f2+
30. Qxf2, Bxd3
31. Re7+, Kg6
32. R1e6, Bf5
33. Rxf6, Kxf6
34. Re6+, Kg7
35. Qxf5

And if Black plays Bg6 like in the text then we could curiously arrive at almost the same position as in the game:

29. g4, f2+
30. Qxf2, Bg6
31. Re7+, Bf7
32 Rxf7+, Kxf7
33. Kxa7+, Kf8
34. Re6

A different defending line played by crafty is this one:

29. g4, f2+
30. Qxf2, Bg6
31. Re7+, Bf7
32. Rxf7+, Qxf7
33. D4+, Kh7
34. Bd3+, Rg6 (if 34..., Kh6. Black has no defence against 35.Re2 and 36. Rh2) 35. Bxg6, Qxg6 and who knows what may happen after that

Nov-19-11
Premium Chessgames Member
  kevin86: A good conclusion---I didn't see beyond the second move.
Nov-19-11  sevenseaman: <sethoflagos> My crafty link is not working very fluently today but I got both your points. Both the lines against Crafty seem sound.

<polarx> ditto. I'll try the lines when Crafty response improves.

Nice lines found by both of you. Thanks.

Nov-19-11
Premium Chessgames Member
  Jimfromprovidence: Here's another line to add to the mix; 29 Bd3 f2+ 30 Qxf2 Bg6 31 Qxf6+!, below. (It's better than 31 Re7+).


click for larger view

Now 31...Kxf6 32 Re6+ Kg7 33 Rxg6+, with an overwhelming attack.


click for larger view

Nov-19-11  gofer: <<abuzic>>: <sethoflagos

29.g4 f2+ 30.Qxf2 Bg6 31.Re7+ Bf7 32.Rxf7 Qxf7 33.Qd4+ Kh7 34.Bd3+ Rg6 35.d6 Qf4 36.Bxg6+ Kh6 37.Qxf4 gxf4 38.Re6>

A very nice finish indeed, but really I was no where near.

In the line, <29.g4 f2+ 30.Qxf2 Bg6 31.Re7+ Bf7 32.Rxf7 Qxf7 33.Qd4+ Kh7 34.Bd3+ Rg6 > I tried and lost against Crafty again and again. In the end I had to look at your posts to find <35 d6!>.

Nov-19-11  abuzic: <sethoflagos

29.g4 f2+ 30.Qxf2 Bg6 31.Re7+ Bf7 32.Rxf7 Qxf7 33.Qd4+ Kh7 34.Bd3+ Rg6 35.d6 Qf4 36.Bxg6+ Kh6 37.Qxf4 gxf4 38.Re6>

31.Re7+ ect. above instead of 31.Qxa7 that I suggested earlier) is very strong variation and should win. So 29.g4 played actually in the game wins and in style! Very entertaining.

Nov-19-11  sethoflagos: <gofer>,<abuzic> Many thanks. Has anyone worked through 29...Rge8 yet? It looks to be more awkward than 29...f2+, particularly against 29.Bd3
Nov-19-11
Premium Chessgames Member
  chrisowen: 29.Bd3 the spundoolies a boo ja g4 indeed!

29.g4 Rgf8 30.gxf5 c2 31.Bd3 Rc8 32.Re7+ Kg8 ( 4.79)

Ode ar to a knot in love

Constant new ground a3 till actual
The long fellow finger queen Evan bish Geline
I took re7 as it situ in check
First amount to nothing and interlocution is it heck

Safe g4 a medal for Ding the revered!
And king Gabriel fate entomb In reared
Flows old arcade angel to the rescue re6
Qf7? 35.c5+

Ding eats queen dropping f6
Never like flies to honey must risk
Haodya wangle that won ie resign!
You big beating turkey ze wild thin line.

Nov-19-11  LIFE Master AJ: When I first looked at this problem - maybe for a couple of minutes - I did not see an immediate tactical solution.

This usually means that some type of "prepatory move" is called for.

I think that 29.g4! is the right move. Black has to play 29...Bg6. Now we have a series of checks: 30.Re7+, 30...Bf7▢; 31.RxB/f7+!, 31...KxR/f7▢; 32.QxP/a7+, with a winning attack. (If the King goes to g6, Bd3+ looks good. While if ...Kf8; Re6 leaves the BQ without a good square.)

Nov-19-11  LIFE Master AJ: Well, I got it, however, it certainly took me long enough! (Maybe close to half an hour, although I did not keep an exact track.)

I did not see <dzechiel>'s usually good post, howver, <agb2002> does a fine job of looking at the myriad of variations for the key position.

My freind from LA, NM Jim Rouselle, (the current state champ) points out that the immediate Re7+ and Re6 might fail to Black giving up the Queen, then pushing his Pawns.

Nov-19-11  dark.horse: Cry me a river.
Nov-19-11
Premium Chessgames Member
  Jimfromprovidence: This winning line of <sethoflagos> and last expanded on by <abuzic> is amazing.

<29.g4 f2+ 30.Qxf2 Bg6 31.Re7+ Bf7 32.Rxf7 Qxf7 33.Qd4+ Kh7 34.Bd3+ Rg6 35.d6 Qf4 36.Bxg6+ Kh6 37.Qxf4 gxf4 38.Re6>

Here is the position after 34...Rg6.


click for larger view

It looks like black has weathered the storm by giving back the exchange. He also double-attacks white's d pawn.

But as stated previously, white plays 35 d6!


click for larger view

The main threat is 36 Re7 and black has absolutely no answer for it. Try it yourself.

Nov-19-11  dzechiel: White to move (29?). Black is up a pawn. "Very Difficult."

Sorry I didn't post this last night, but I worked out a line that started with

29 Bd3

I thought it had real possibilities. For instance

29...Bxd3 30 Re7+ Kg6 31 Qxd3+ Kh5 32 Rh7+ Kg4 33 Re4+ etc. This wins the queen for a rook or checkmates.

Other lines for black on move 29 also look good for white (such as):

29...Bg6 30 Bxg6 Kxg6

On 30...Qxg6 31 Rxg5+ picks up the queen.

31 Re6

Also winning the queen. When I checked the actual game and saw the key move as

29 Bg4

my eyes bugged out as I looked over the play, which was totally unlike my combination. I just didn't feel like posting, so moved on to other stuff.

After reading AJ's comment today, I decided I might as well post what I had come up with and take my lumps.

Nov-19-11  sevenseaman: I was trying the following <sethoflagos - abuzic> line as given by <jimforprovidence>. It looks something good at last.

<29.g4 f2+ 30.Qxf2 Bg6 31.Re7+ Bf7 32.Rxf7 Qxf7 33.Qd4+ Kh7 34.Bd3+ Rg6 35.d6 Qf4 36.Bxg6+ Kh6 37.Qxf4 gxf4 38.Re6>

When I tried it against Crafty, this is what happened;

Crafty varied at the very first reply and to me its response 29...Be6 did not look better than 29...Bg6 in the <lagos> line. The game went like this;

<29. g4 Be6 30. Rg5+ Kf7 31. exf6+ Qxf6 32. Qf4+ Ke7 33. Rxe6+ Kxe6 34. Bc4+ Rd5 35. Bxd5+ Kd7>


click for larger view

And it was like a total surrender by Crafty, as though it wasn't interested.

I played on some;

<36. Rxg8 f2+ 37. Qxf2 c2 38. Qxc2 Kd6 39. Qc6+ Ke5 40. Rg5+ Kf4 41. Qf6+ Ke3>

Hereafter I too lost interest as only mopping up remains.

Nov-19-11  James Bowman: Yes I got lost on the Rh7+ path too.;o]
Nov-19-11  sevenseaman: Playing the <29. Bd3> line White gains the domination more easily. This is how it went;

<29.Bd3 f2+ 30. Qxf2 Bxd3 31. Re7+ Kg6 32. R1e6 Rgf8 33. Qg3 Rxd5 34. Qh3 Qxe6 35. Qxe6+ Rf6 36. Qxd5 Bf5 37. Qg8+ >


click for larger view

<Kh5 38. Qh8+ Rh6 39. Qe5 Re6 40. Rxe6 Bxe6 41. Qxe6 c2 42. Qe2+ g4 43. Qxc2 Kh6>


click for larger view

A simple win is laid on.

Nov-19-11  Antiochus: <NM JRousselle> I agree.
Nov-20-11  TheBish: Ding Liren vs Wang Hao, 2011

White to play (29.?) "Very Difficult"

The first candidate move I looked at, 29. Re7+, doesn't quite work: 29...Kg6 30. R7e6?? Bxe6 31. Rxe6 Qxe6! and if 32. dxe6 Rxe4 leaves White down two rooks for a bishop.

29. Bd3! Bg6

Or 29...Bxd3 30. Re7+ Kg6 31. R7e6, or 29...f2+ 30. Qxf2 Bxd3 (30...Bg6 is better) 31. Re7+ Kg6 32. R7e6, pinning and winning the queen.

30. Re7+ Bf7 31. Rxf7+! Kxf7 32. Qxa7+ Kf8

I looked this far awhile back, but had a hard time seeing past this point.

33. Re6!

This is the point; there is no good square for Black's queen, as it must guard the e7 square (preventing Qe7#).

33...Qf7 34. Qc5+ Kg7 35. Qxc3+

Of course, 35. Re7 wins too, but this is more brutal.

35...Kf8 36. Rf6 and White wins the queen, leaving him with queen and bishop against two rooks.

Nov-20-11  LIFE Master AJ: <dzechiel> Thanks for posting.

If I followed my own rules, I only get 5-10 minutes, except on Sundays.

Today I probably lost on time ... if it makes you feel any better.

Nov-20-11  LIFE Master AJ: But I still award myself an "E" for effort ...
May-12-16  Jambow: As I look at Ding's best games I see he has a penchant for his pawns advancing up the center of the board. Intriguing style. This game his win over Aronian too. Top ten player and a real threat to anyone at any time.
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