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Li Chao vs Wang Hao
IMSA Elite Mind Games (Blitz) (2016) (blitz), Huai'an CHN, rd 18, Feb-29
Catalan Opening: Closed Variation (E06)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Mar-31-17  iking: 26. Re1 ... a good monday-tuesday puzzle.
May-02-17
Premium Chessgames Member
  Phony Benoni: Well, I came up with 27.Re8+ Nxe8 28.Qxe8+ Kg7 29.Qf8+ Kg6 30.Be4+. Or, if Black declines, 27...Kg7 28.Qxc4 Nxc4 29.Bf8+ Kg6 30.Be4.

Then I saw that White played 27.Qxc4, and the flaw in my line hit: after 27.Re8+ Kg7 28.Qxc4 Nxe8 white has othing.

May-02-17  lost in space: my move would have been

27. Qe8+

A: 27...Nxe8 28. Rxe8+ Kg7 29. Bf8+ Kg6 30. Be4+ Qf5 and white wins due to his material plus

B: 27...Kg7 28. Qe3 Nb5 (only move I found to avoid Bd4+) 29. a4 Rxa2 30. axb5 Ra1 31. h3 or Bb4 and white win due to his material plus.

Most probably the second best solution

May-02-17  dick50: 27 Re8+ also wins!

27 Re8+ Nxe8 28 Qxe8+.. and wins as in actual game

27 Re8 Kg7 28 Qxc4 Nxc4 29 Bf8+ and wins as in game

28 Re8 Kg7 28 Qxc4 Nxe8 29 Bd4 wins black Queen and then game

May-02-17  lost in space: 27. Re8+ Kg7 28. Qxc4 Rb1+!!

and it is black to win


click for larger view

for example 29. Bf1 Nxc4 30. Bf8+ Kg6 and no follow up


click for larger view

May-02-17  Walter Glattke: Always one piece, 27.Qxa7 Rxa2 28.Bd5 Qd8! only 27.Qxc4 Rxf2 28.Re8+ Kg7 29.Bxd6 Rxg2+
30.Kxg2 Qxd6 or 28.-Nxe8 29.Bxf2
May-02-17  ChessHigherCat: Good puzzle. At first it looks like there are three alternatives, Qe8+ or Re8+ or Qxc4, but only the last one diverts the knight to enable the coup de grāce Be4#
May-02-17
Premium Chessgames Member
  agb2002: White has the bishop pair and a pawn for a bishop and a knight.

The knight controls e8. This suggests 27.Qxc4 Nxc4 28.Re8+ Kg7 29.Bf8+ Kg6 (29... Kg(h)8 30.Bh6#) 30.Be4+ Qf5 31.Bxf5+ wins a piece at least.

The alternative 27.Re8+ Kg7 28.Qxc4 fails due to 28... Rb1+ 29.Qf1 (29.Bf1 Nxc4 30.Bf8+ Kg6 and 31.Bd3+ is impossible) 29... Rxf1+.

May-02-17  Iwer Sonsch: A bit too tricky for a Tuesday, I feel like. I also went for 27.Re8+? Kg7 28.Qxc4?? Rb1+! .

Interestingly enough though, 27.Qe8+ is also winning, just on a more difficult basis:

a) 27...Nxe8 28.Rxe8+ Kg7 29.Bf8+ Kg6 30.Be4+ Qf5 31.Bxf5+ Kf6 (11.02 @depth 29)

b) 27...Kg7 28.Qe3! Nb5 29. a4 Qf4 (delaying the loss of material) 30.Qe7! Nd6 31.Be3 Qxg4 32.h3 Qh4 33.Qe5+ f6 34.Qxb2 (11.36 @depth 25).

So if you somehow thought it's Thursday, 27.Qe8+! is the right solution for today's puzzle, leaving White with an even bigger advantage than the Tuesday solution (9.09 @depth 24 after 29.Bf8+ Kg6 30.Be4+ Qf5 31.Bxf5+ Kf6 32.Bb4! Rxb4 33.axb4).

May-02-17  Iwer Sonsch: Both players played pretty solid for a blitz game. Black was equal until the passive 18...Ne8!?, simultaneously missing an opportunity to make it pretty difficult for White (19.Bxc7 Rd7 20.Qe5! Qxe5 21.Bxe5 Bb7! (0.16 @depth 23).
May-02-17  leRevenant: Having bombed out as per <Phony Benoni>, I don't feel too disgraced.
May-02-17  Whitehat1963: Totally missed it.
May-02-17  Carlos0012358: 27.Re8+ is a bad idea because then 27....Kg7 28.Qd1 Nxe8 29.Bd4 Bxa2 30.Bf6+ Bf1....... And white's initial advantage has deteriorated.

27.Qxc4 is the best move....then 27....Nxc4 is not good for black because then 28.Re8+ Kg7 29.Bf8+ Kg6 30.Be4+ Qf5 31.Bxf5+ Kf6 32.Bb4 Rxb4 33.axb4 and white is a Rook and a pawn up and wins easily.

Therefore, finally 27 Qxc4 Rxf2 best continuation for black, then 28.Qa4 Rxa2 29.Bd4 Qd8 30.Qb3 Rd2 31.Be3 Rxg2+ 32.Kxg2 .....although white is still up a Rook and a pawn and eventually wins.

May-02-17
Premium Chessgames Member
  morfishine: <27.Qxc4> deflects the Knight allowing the White rook's entry: 27...Nxc4 28.Re8+ Kg7 29.Bf8+ and now if 29...Kg8, then 30.Bh6# or 29...Kg6 30.Be4+

Nice Combination

*****

May-02-17
Premium Chessgames Member
  malt: 27.Q:c4 N:c4 28.Re8+ Kg7 29.Bf8+ Kg6 30.Be4+ Then looked at 27.Qe8+ N:e8 28.R:e8+ Kg7 29.Bf8+ Kg6 30.Be4+ 27.Re8+ looks risky
May-02-17  mel gibson: DR4 64 bit only played the first move:

27. Qxc4 (27. Qxc4 (♕a4xc4 a7-a6 ♗c5-d4 ♕f6-f4 ♕c4-c3 ♕f4-d2 ♕c3xb2 ♕d2xe1+ ♗g2-f1 h7-h6 ♕b2-b8+ ♘d6-e8 ♗d4-e3 ♔g8-f8 ♕b8-b4+ ♕e1xb4 a3xb4 ♘e8-f6 ♗e3-c5+ ♔f8-e8 ♗f1xa6 ♘f6xg4 a2-a4 ♘g4-f6 d5-d6 c7xd6 ♗c5xd6 ♔e8-d7 ♗d6-f8 ♔d7-e6 ♗a6-c4+) +5.49/15 84)

score for white +5.49 depth 15.

May-02-17
Premium Chessgames Member
  PawnSac: wow... when i looked at the puzzle on the front page i had to check the date.. Did i lose a day somehow?? For a moment i thought it was queen sac monday!

< Qxc4 Nx Re8+ Kg7 Bf8+ Kg6 Be4+ wins a piece and game >

May-02-17
Premium Chessgames Member
  gawain: There are at least three moves that win for White. 27 Re8+ is the weakest. I would say that 27 Qxc4 and 27 Qe8+ both win convincingly enough to count as solutions. Both lead to pretty wins if Black accepts the offered queen. And both lead to not-especially-pretty wins if Black refuses.
May-02-17  notyetagm: <Whitehat1963: Totally missed it.>

I did not think this was that easy.

May-02-17  Iwer Sonsch: On some rare occasions, I wish I could understand <chrisowen>'s thoughts.
May-02-17
Premium Chessgames Member
  paavoh: @Iwer Sonsch: <On some rare occasions, I wish I could understand <chrisowen>'s thoughts.> Take a look at his posts from 4-5 years ago - a big difference. You almost got his ideas back then :-)
May-02-17  swclark25: I also went with Re8+ like Misters <Benoni> and <Sonsch> but I see its fallacy and the improvement of Qxc4.

Agree with <paavoh> and <Sonsch> on understanding the thoughts of <chrisowen>. Today was tougher because of all the bullshine.

May-02-17  schachfuchs: I thought chrisown is a bot?!
May-02-17  swclark25: What happened to <YouRang>? Haven't heard from him in several weeks. I always enjoyed his inputs.
May-02-17  NBZ: <swclark25> Wait so is there a way to decode <chrisowen>'s messages? Like some secret code that only the few know about? I mean the moves all look sensible it's just the annotation in between that's such a mystery (is it just a different language)?
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