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Ding Liren vs Levon Aronian
World Cup (2017), Tbilisi GEO, rd 7, Sep-26
Queen's Gambit Declined: Ragozin Defense. Vienna Variation (D39)  ·  1/2-1/2
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Sep-26-17
Premium Chessgames Member
  PhilFeeley: This looks drawish, except white is more active. That has to count for something.
Sep-26-17
Premium Chessgames Member
  offramp: Centralised rooks need second looks.
Sep-26-17
Premium Chessgames Member
  keypusher: Black also could have played 22...Nxe5, right?
Sep-26-17
Premium Chessgames Member
  keypusher: <offramp: Centralised rooks need second looks.>

A pawn is a pawn is a pawn. -- G. Steinitz

Sep-26-17  afterCarlsin: much stress...
Sep-26-17  vonKrolock: A drawing masterpiece with Nanking ink or khash with grechnaia kasha and chicken schmaltz ?!
Sep-26-17  Toribio3: The outcome will be another draw?
Sep-26-17  BOSTER: What is better to have much space or material( pawn)?
Sep-26-17
Premium Chessgames Member
  Mateo: The Black King can come to e7 and then Black trades Rooks on the 'd' file. Black has good prospects for a win here.
Sep-26-17  arieszodiac: Black is pawn even though the position is drwish black has the initiative. Take all the major pieces the blavk has always a move up
Sep-26-17  optimal play: This is a win to black!

If Aronian lets Ding Dong escape with a draw he should be made to eat Chop Suey for a month!

Sep-26-17  Toribio3: Draw! Bishop is stronger than knight in this kind of endgame situation. The long range power of bishop is enough compensation for one pawn down.
Sep-26-17
Premium Chessgames Member
  moronovich: Since white lost his e-pawn he has defended excellently IMO and has realistic drawingchances.
Sep-26-17  afterCarlsin: Black wins (astrologer here)
Sep-26-17  JimNorCal: Objectively still a draw, I bet. But with Black a pawn up and lines opening probabilities begin to favor one of two outcomes: 1) black makes an error and slips to an even position 2) white makes an error and and slips to a losing position

I think Aronian had the edge in 3 of the 4 games. Ding has defended excellently.

Sep-26-17  BOSTER: Rook d4 is interesting.
Sep-26-17  ughaibu: How can Aronian lose from here?
Sep-26-17  JimNorCal: Stockfish likes NxB RxN Rxh5 with two pawn advantage but weak black pawns targeted by the white rooks.

Aronian deep in calculation, burning time and coming closer to equal with Ding. Ding had been down about 10 minutes.

Sep-26-17  Absentee: Draw agreed. Quite a satisfying game, nonetheless.
Sep-26-17
Premium Chessgames Member
  whiteshark: 2 L8 4 me
Sep-26-17  JimNorCal: Never too late for you, WS!
And we saved all the moves and all our thoughts so you could go over them :)
Sep-26-17  optimal play: Lev blew it!

Where did he go wrong?

Probably 44...Re5?

Better is 44...Rxb5 but he was presumably worried about 45.Rexe6+ which looked more ominous than it was.

Sep-27-17  Ulhumbrus: <optimal play: Lev blew it!

Where did he go wrong? > One answer is that whether Aronian blew it depends on whether Ding Liren had sufficient compensation for the pawn

7 Bxf6 concedes the bishop pair

One alternative to 28...Kf8 is 28...h5 preventing both h5 and Rg4

Instead of 30...Rg8, 30...Rd8 offers to return the pawn in return for a counter-attack eg 31 Rxd8 Rxd8 32 Rxg7 Rd1+ 33 Kh2 Ne4 34 f3 Nf6 depriving the white rook of mobility

Sep-28-17  optimal play: <Ulhumbrus> Some interesting observations which indicate Aronian may have missed a couple of opportunities even before his 44th move, but 44...Rxb5 was his last chance to win.

Consider 44...Rxb5 45.Rexe6+ Kf7 46.Rxb6 Rb8 and there is a R+P ending with black's two connected pawns to white's one.

Okay, it still requires precise play, but there's a win there for black if he's good enough.

In any event, I would suggest Ding Liren did not have sufficient compensation for the pawn.

Sep-28-17  Arconax: <optimal play> It didn't seem like he had.
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