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Wei Yi vs Stefan Bromberger
Qatar Masters (2015), Doha QAT, rd 6, Dec-26
Russian Game: Nimzowitsch Attack (C42)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Given 6 times; par: 49 [what's this?]

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Kibitzer's Corner
Dec-26-15
Premium Chessgames Member
  keypusher: After 21.....Rd8:


click for larger view

22.Rxe6! Rxd1+ 23.Kxd1 and Black is completely tied down by the threat of Re8+.

White marches his king to h5 and advances his kingside pawns, setting up a won king and pawn ending.

So simple yet so amazing! You can see why Wei Yi reminds people of Morphy.

Dec-26-15  fisayo123: 22.Qe2 and white was also winning.

But the spectacular 22.Rxe6!! wins by force. There's no way for black to escape the potential zugzwang that will surely ensue.

Dec-26-15  AzingaBonzer: This is the Wei Yi we all know and love. Not the guy who's been playing as him for the last few days.
Dec-26-15
Premium Chessgames Member
  keypusher: <AzingaBonzer>

Here Wei Yi vs N R Vignesh, 2015 he obviously made several mistakes and eventually lost via a terrible blunder. But even in that game, he showed enormous creativity and strength. He'll be fine.

Dec-26-15
Premium Chessgames Member
  Penguincw: Video analysis of this game: https://www.youtube.com/watch?v=Lx4....
Dec-27-15  coolconundrum: Wei of Kings
Dec-27-15
Premium Chessgames Member
  Penguincw: This game should be both GOTD and POTD soon. Okay, maybe not POTD soon, as it would be fresh in people's minds, but definitely in the future.

I also love how after 24...Kf8, white doesn't go for 25.Rxe8+ right away (I would've). Recognizing black can do nothing about it, why not make some progress? Nothing to lose, everything to gain.

White also makes sure they have enough tempo on the queenside to ensure black is in zugzwang in the ensuing king and pawn endgame

Still, not a bad game by black, until 19...f6. At that point, just a matter of resistance with Wei Yi's patience and technique.

Dec-28-15
Premium Chessgames Member
  OhioChessFan: 25...f5 opens up a lot of possibilites of perpetual check. How does White win?
Dec-28-15  rainingpieces: <OhioChessFan> Maybe 26.h3 followed by g4? If Qd1+ then Kg3. King can go to h3 and then push pawn to g4. h3 covers g4 from the queen
Dec-28-15
Premium Chessgames Member
  OhioChessFan: I have been messing around with this some. The problem I have with winning this for White is after the tempo needed to secure the King, Black plays b5 and the zugzwang disappears, in part because Black's a Pawn can move one or two squares. I think.
Dec-28-15  Pulo y Gata: OCF, 25...f5 changes nothing and that pawn will fall later. White walks over his king to h5 and then exchanges on e8, followed by Kg6-xf5, etc. No worries with b5, in that structure black can't break through and will still run out of moves (but by then the extra pawn on the kingside makes it already winning for white).
Dec-28-15  rainingpieces: <Pulo y Gata> Black can keep his queen on d8 covering h5. After exchange on e8 Black king can move to f7 covering g6. If queen stays on d8 the White king cannot enter
Dec-28-15  Pulo y Gata: Black's queen from d8 can't cover h5. In fact black is reduced to shuffling his queen from d8 to d7 because of the back rank mate threat.

Just to give you a sample line after 25...f5 26.Kg3 Qd7 27.Re1 Qd8 28.Re2 Qd7 29.Kh4 Qd8+ 30.Kh5 mission accomplished. Next white plays Re8+ followed by exchanges on e8 and then white plays Kg6, winning the f5 pawn.

This is an straightforward line. You can insert pawn moves on the queenside but white's winning plan is simple enough to calculate and execute.

Dec-28-15  rainingpieces: <Pulo y Gata> Yes sorry I meant h4. I see your point and that kind of line is winning.

So looks like Black does not have any meaningful pawn moves on the queenside. Like 25...f5 26.Kg3 b5 and 27.b3 should hold the queenside together I think. 27...a5 28.c3 is what I would play. If 28...a4 then 29.bxa4 and if 28...b4 then 29.cxb4. Okay it clearly holds, so White just wins even after 25...f5. Thanks for the reply

Dec-28-15  Pulo y Gata: <rainingpieces> You're welcome.
Dec-28-15
Premium Chessgames Member
  OhioChessFan: Fixing a typo:

<Just to give you a sample line after 25...f5 26.Kg3 Qd7 27.Re1 Qd8 28.Re2 Qd7 29.Kh4 Qd8+ 30.Kh5 mission accomplished. >

If it's so straight forward, why the Rook moves, except to lose a move and make Black then play the supposedly zugzwang induced bad move Qd7 just in time to let the King move to h4? I accept this may be dead lost for Black, but I'm sure not seeing how White gets the King to h4 without Black's help. As for your suggested line, 26. Kg3 <b5>. Now what?

Points under consideration. The f5 Pawn blocks the Bishop from d3, a nice spot for the Black Queen to check on. Pushing the Queenside Pawns is going to lead to the c2 Pawn moving, which will leave d3 undefended. I have been trying this sequence: h3, Kh2, g4, without success, Qd2+ being a real problem.

Dec-28-15
Premium Chessgames Member
  OhioChessFan: Another point: If White plays 27. cxb5 then after Black's reply cxb5, Black now has c6 for his Queen, and can alternate attacking the Rook with Qd7 and the Bishop with Qc6. Maybe White has to play 28. h4 and hope for the best.
Dec-28-15
Premium Chessgames Member
  OhioChessFan: h4/h5 defending the Bishop......Might be something here for White......
Dec-28-15
Premium Chessgames Member
  tpstar: On 25 ... f5 White plays 26. Re5:


click for larger view

If 26 ... Qd7 27. Rxf5+ Kg8 (27 ... Ke7? 28. Rf7+) 28. Re5 Kf8 29. Re8+ trading down to a Pawn up K&P endgame win. If 26 ... Qc8 27. Bxf5 Qd8 28. Bg6 & 29. Re8+ leads to the same result.

On the Queenside, both sides have doubled c Pawns. If Black tries to break with ... b5, the key is that White does not capture:


click for larger view

The point is that Black can never create a passed Pawn on the Queenside, provided White does not trade c4xb5. Instead you let Black play b5xc4 and the tripled Pawns can't Queen, or else meet b5-b4 with a3-a4.

Dec-28-15
Premium Chessgames Member
  OhioChessFan: 25...f5 26. Re5 <Qd1+> then Qd8
Dec-28-15  Pulo y Gata: OCF, it's straightforward in a sense that the idea is clear: black is tied down to the defense of his back rank and white can improve his position before making the trade on e8. I thought it need no explanation that b5 will not work, but tpstar helped out. If anything, you'll get more than what initially interested to a game by goong through it in depth, so your investigation is a win-win situation.

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