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Ding Liren vs Yu Yangyi
IMSA Elite Mind Games (Blitz) (2017) (blitz), ?, rd 5, Dec-12
English Opening: Symmetrical Variation. General (A30)  ·  0-1

ANALYSIS [x]

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sac: 32...Rxg4+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Dec-01-20  saturn2: <alwazir aore interesting question is, what did white think he was doing when he played 26. Nxd5 ?> The only possible answer is it was blitz.
Dec-01-20  Madman99X: <al wazir> According to Houdini 6 after 26. Nxd5 Bxf2+ 27. Kg2 Bxe1, white can equalize with 28. Qxe4 where the threat of Nf6+ must be answered. Not so easy to find such a move in blitz chess, I wouldn't think.
Dec-01-20
Premium Chessgames Member
  scormus: What <Cheapo> said :
Dec-01-20
Premium Chessgames Member
  murkia: Expect the unexspected seems to be the new
<cg> normal.
Dec-01-20  groog: easier than yesterday
Dec-01-20  Mayankk: I lost my precious 5 minutes hunting for a brilliant sacrifice till I realised Black was already a Rook up. And of course the simple 2 Rook versus Queen-pawn exchange does the trick.

I should learn to count pieces before I start on a puzzle.

Dec-01-20  morfishine: i got it without realizing Black was a rook up anyways LOL
Dec-01-20  et1: This was Monday like.
Dec-01-20  Brenin: <al wazir>: After 29 b4 Kh8 (e4!?) 30 bxc5 Rxc5 White does indeed regain the piece, but it's a N in return for a R, so he's the exchange down with a weak c-pawn and no compensation.

As <Madman99X> wrote, the big mistake was 28 Rxe1, when Qxe4 first (threatening to win the Q with 29 Nf6+) and then capture on e1 would have maintained equality. Typical blitz oversight.

Dec-01-20
Premium Chessgames Member
  scormus: We, no wonder it was difficult with W to play. B's R advantage would be decisive even if he could have "passed" on the move.

Curious that <CG> should pick a position that is winning for any remotely plausible move

Dec-01-20  stacase: After a few seconds of casting about, the question arises, who can say check? 32...Qxd5+ and 32...Rxg4+ Oh look at that, it forks White's King & Queen and there's a Black Rook waiting in the wings to pin the White Queen if White doesn't resign on the spot. What fun! White continues.

After all of that and typing up my post, I notice White was already down a Rook and then I read: <Phony Benoni: It's easy to be brilliant when you're a rook ahead.> Ha ha! First chuckle of the day.

Dec-01-20  TheaN: I don't really get the choice of a 'rook up' puzzle, as it does make <32....Rxg4+ 33.Qxg4 Rg8 -+> trivially easy. In fact, you spot this, only to realize Black's a rook up after.

Black may still have to keep some composure after 34.Qxg8+ (Rg3 Rxg4 35.Rxg4 Nf6 -+) Kxg8 35.Rg3+ Kf8 36.Kf2, as this forced sequence breaks the pin on Nd5 and the Black king is somewhat isolated, but White's pretty much out of pieces to force something, and 36....b5 -+ breaks the temporary deadlock immediately.

Long story short; <Phony Benoni: It's easy to be brilliant when you're a rook ahead.> QotD.

Dec-01-20  zb2cr: Paraphrasing a line of beer commercials, "When you have a Rook ahead, life is good."

All this does is show a way to simplify to cut down on White's dynamic chances. 32. ... Rxg4+; 33. Qxg4, Rg8 ; 34. Qxg8+, Kxg8 Black is ahead a straight Queen for Rook and White has no real play.

Dec-01-20  saturn2: No need to overrespect a GM in blitz. 26 Nd5 was only good if he foresaw 28. Qxe4 .which he did not.

So 26.Nd5 was played without plan and it was only good by coincidence.

Dec-01-20  Damenlaeuferbauer: After a few seconds, the very strong Chinese grandmaster Yu Yangyi finally found the exchange of his two rooks vs. white's queen and a pawn to simplify the position with 32.-,Rxg4+! 33.Qxg4,Rg8 -+. He won a classical game against the immortal Vladimir Kramnik, which is much more impressive than his win in lightning chess against the reigning world champion Magnus Carlsen.
Dec-01-20
Premium Chessgames Member
  Diademas: I used 15 minutes of my life, gave up, and than realized it was Black, not White, to move.
That really makes one feel like a bonafide genius.
Dec-01-20  AlicesKnight: Found .... Rxg4 followed by the pin of the Q fairly quickly. The run-up to it made no sense until the word 'Blitz' was spotted.
Dec-01-20  popnstart: i got it, but still struggle with with why Yu didn't take free pawn on move 12.
Dec-01-20
Premium Chessgames Member
  al wazir: <saturn2: The only possible answer is it was blitz.>

I was missing something. Yes, at blitz it was understandable.

Dec-01-20  Doktorn: This is one of those I would play in an instance in a real game, but that doesn't feel like a puzzle solution. So saw the played line in a few seconds and came here a few minutes later expecting to see a solution winning more material if not mating.
Dec-01-20
Premium Chessgames Member
  Messiah: <Diademas: I used 15 minutes of my life, gave up, and than realized it was Black, not White, to move.>

kek

Dec-01-20  RandomVisitor: 23.Qf3! is winning for white:


click for larger view

Stockfish_20112916_x64_modern:

<45/67 1:16:36 +3.09 23...Nc5 24.Qxb7 Nxb7 25.Bxb6> Nxg4 26.Ne3 Nf6 27.Ned5 Nxd5 28.Nxd5 Nc5 29.Rcd1 Bg5 30.Kf1 Kh8 31.Bc7 Nb7 32.Ke2 Rg8

45/63 1:16:36 +6.40 23...Kh8 24.Nxe4 Rg8 25.h3 b5 26.Rb1 Nxe4 27.Qxe4 Qxe4 28.Rxe4 h5 29.Nb4 hxg4 30.hxg4 Bg5 31.Nd5 Kg7 32.Kg2 Rh8

45/72 1:16:36 +6.48 23...d5 24.Nxd5 Nc5 25.Ncb4 Bd8 26.Nxf6+ Bxf6 27.Qxb7 Nxb7 28.Nd5 Rc6 29.Bxb6 Bg5 30.Rc2 Kf8 31.Kg2 Nd6 32.Bf2 a5

Dec-01-20  RandomVisitor: According to Stockfish, b5, Rg7, f6, Rc6, Rxg4+, Qc6, Rce8, Qb8, a5, Rb8, Rcd8, Rcf8, Ra8, Rc5, Qa8, e4, Qa7, Rc7, Nf8, Kg7, Nc5, and Nb8 all win for black.

Kudos to anyone who found all of these.

Dec-01-20  RandomVisitor: Rge8, Qxd5+, Rg6, h5, Nf6, Rg5, Qc7, Rgf8, and h6 all lose.

Rgd8 is even and Rxc4 favors white.

...h6 allows Qxh6 mate.

Did I miss anything?

Dec-02-20  Nullifidian: 32... ♖xg4+ 33. ♕xg4 ♖g8 pinning the queen and winning it. White will capture the second rook, but black will still be up material.
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