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Xiaowen Zhang vs Ruiyuan Yu
XingQiu Open (2009), Zhejiang Lishui, rd 5, Sep-21
Caro-Kann Defense: Maroczy Variation (B12)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
0-1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Dec-24-20  I hate poker: Tuesday stuff on Thursday.
Dec-24-20
Premium Chessgames Member
  OhioChessFan: What <FSR> said on December 24th.
Dec-24-20
Premium Chessgames Member
  Diademas: What <Whitehat1963> said on December 24th.
Dec-24-20  Brenin: What <Brenin> said on September 30th.
Dec-24-20  JohnBoy: The real puzzle is to guess the opening from the given position. I went w Poisoned Pawn Najdorf.
Dec-24-20
Premium Chessgames Member
  perfidious: <johnBoy>, on seeing the open position of the game, a Caro-Kann would not have occurred to me.
Dec-24-20  goodevans: Hey <CG>! If you must republish puzzles after just a few weeks you could at least take into account what people wrote first time around. If we said it was too easy for a Wednesday why then give it to us on a Thursday?!?
Dec-24-20  malt: What I Said in September.
Dec-24-20
Premium Chessgames Member
  chrisowen: Juxtaposition numerals evict Rxe2 fanfare aeschylus vulcan biter oblivion bob it tub evict juxtaposition numerals evict change vBA gap it pig wok queued it eazy tyrannosaurus evict ovidy melons juxtaposition its hilt bay goody leg it poney evict wicks kin it worms crammy rd2 fever abridge blush vat latch kf2 dig it black tot add efface iotas deffy jiver Rxe2 diminish!
Dec-24-20
Premium Chessgames Member
  chrisowen: Re wax no?
Dec-24-20  thegoodanarchist: What someone said a few weeks ago.
Dec-24-20  RandomVisitor: Perhaps we are in a time warp:

"It's astounding
Time is fleeting
Madness takes its toll
But listen closely
(Not for very much longer)
I've got to keep control...

Let's do the Time Warp again
Let's do the Time Warp again"

In a chessgames first, I will solve the puzzle for tomorrow, December 25, one day ahead of time, before it is even announced.

The puzzle for tomorrow likely will be this game, from October 1, 2020:

A Hakobyan vs D Gavrilescu, 2018

where the solution is 24.exf6

Dec-24-20  drollere: well, i never saw this puzzle before. and i say Rxe2+ and Re8+, with the N fork Ne3+ if the K heads west, otherwise Qxd2 wins the exchange.

i don't think that you guys realize that some of us are so old (today is my birthday; no presents, please) that we actually forget we ever saw a puzzle the first time, so the second time around, even a week later (i'm not putting a time limit on senility -- senility is a matter of personal freedom, like believing the world is actually flat), solving the puzzle is somehow easier as a kind of subconscious recollection. and it's a joy to get the solution the second time around like a subconscious recollection. it's like i'm in a wordsworth poem trailing clouds of glory. it's like progress.

besides, how old is CG anyway? don't all of you have a grandpa who likes to tell the same stories over and over? "yes, grandpa, and then grandma poked the raccoon with the broomhandle and the cat jumped out the window. pass the butter."

Dec-24-20  RandomVisitor: <"First a jump to the left...">

22.? (Friday, October 2); 31.? (Tuesday, December 15) E Gulden vs Andrei Macovei, 2018 (A07) King's Indian Attack, 31 moves, 1-0

23.? (Saturday, October 3; Wednesday, December 16) Kiril D Georgiev vs Topalov, 1992 (A57) Benko Gambit, 39 moves, 1-0

<"and then a step to the right...">

33...? (Monday, September 28; Tuesday. December 22 T K Ozgur vs J M Miciano, 2018 (A10) English, 33 moves, 0-1

29.? (Tuesday, September 29; Wednesday, December 23) W Arencibia Rodriguez vs Z Franco Ocampos, 1990 (E25) Nimzo-Indian, Samisch, 30 moves, 1-0

24...? (Wednesday, September 30; Thursday December 24)) Zhang Xiaowen vs Yu Ruiyuan, 2009 (B12) Caro-Kann Defense, 25 moves, 0-1

<"Let's do the Time Warp again!">

24.? (Thursday, October 1)
A Hakobyan vs D Gavrilescu, 2018
(D31) Queen's Gambit Declined, 28 moves, 1-0

Dec-24-20  yataturk: I solved a Thursday puzzle, after a long time. Detecting the fork by the knight and the pin on the rook moved the pieces for me.
Dec-24-20  King.Arthur.Brazil: After the natural sacrifice: 24...♖xe2+ 25. ♔xe2 ♖e8+, I guess many has found this line, the White resigns, but it is good to see why. The most stupid move: 26. ♔d3?? ♕c3#. Another stupid one is 26. ♔d1?? ♘c3+ 27. ♔c1 ♕a3#. Also mortal is 26. ♔f1 ♘e3+ 27. ♔f2 ♕xd2+ 28. ♔f3 ♕xg2+ 29. ♔f4 ♕f2#. Trying another escape, 26. ♔f2 ♕xd2+ 27. ♔g3 ♖g8+ Don't commit suicide: 28. ♔f3?? ♕xg2#. Now it could follow A){28. Kh3 Nf4+ 29. Kh4 Nxg2+ [If 30. ♔h5 ♖g5+ (31. ♔h6 ♖xf5#) 31.31. ♕xg5 ♕xg5#]. So 30. ♔h3 ♕h6+ 31. ♕h5 ♕xh5# or B)28. ♔h4 ♕h6+ 29. ♕h5 ♕f4+ (If 30. g4 ♕f2+ 31. ♔h3 ♘f4#}) 30. ♔h3! Now it seems the best try: 30...♕f2 (threats {31...Nf4#]) which must be avoided by 31.g3 ♘f4+ 32. gxf4 ♕g2+ 33. ♔h4 f5! Then 34. h3 ♕f2# or any ♖} move, ♕xh2#. Therefore it is forced: 34. ♕d1 ♖g4+ (If 35. ♕xg4 ♕xg4#}) 35. ♔h5 ♕h3#.

So it turns the most long line comes from 26.♔f3 directly. The fist difference is that you din't have the ♕xd2+ nor ♖g8+ which gives to Black great power. While the 26...♕c3+? 27. ♖d3 creates defense to White.

It must follow {26...Re3+ (Don't get back: 27. ♔f2 ♕xd2+ 28. ♔f1 ♖e1# or 28. ♔g1 ♖e1+ 29. ♕f1 ♕e3#}) 27.♔g4 Still the single hope. Perhaps you can find some chekck-mate line in many variants, but I guess that here, after 27...♕a4+ 28. ♔h5 ♖e5! seems the best answer. Which will be followed by 29. ♖xd5 ♖xf5+ 30. ♖xf5 ♕e8+ 31. ♔g4 ♕e4+ 32. ♔g3 ♕xf5 or 32. ♖f4 ♕xg2+ 33. ♔f5 ♕xh1 Both cases win the ♖.

Any try to make a progress like: 34. ♔xf6 ♕c6+ 35. ♔f5 ♕xc5+ 36. ♔f6 ♕d6+ 37. ♔g5 ♔g7 is easily blocked and the final is easy to win. I let you study the position for other moves than 28...♖e5. Good luck.

Happy Christmas everybody.

Dec-24-20  Refused: 24...Rxe2+ 25.Kxe2 Re8+ curtains. At the very least the rook on d2 is gonna drop, I wouldn't be surprised if there was quick mate to be found with the being forced to venture onto the third rank.
Dec-24-20
Premium Chessgames Member
  Jimfromprovidence: I pulled this one out of my puzzle vault. It'll make you think some. Move 33, white to play.


click for larger view

Here is the game link.
Karjakin vs Kamsky, 2008

Dec-24-20
Premium Chessgames Member
  moronovich: Rb3 and 1-0

Merry Christamas <Jim>

Dec-24-20  Pedro Fernandez: Is this Médium? Really? Seriously, I see this in no more than fifteen seconds.
Dec-24-20  Pedro Fernandez: That's Correct <Chris>. Impediment of Rxe2 Let's one solve immediately the puzzle.
Dec-24-20  Pedro Fernandez: Happy NocheBuena for everybody here!
Dec-24-20
Premium Chessgames Member
  ajk68: Why do I feel like this position came up in another puzzle of the day? There are no comments from the past on this thread, so there must be another game with a similar combination.

Anybody remember the other game?

Dec-24-20
Premium Chessgames Member
  ajk68: I am mistaken, the comments were from only 3 months ago. I saw the year and didn't notice the month.

So, I guess this was the game.

Dec-24-20  Pedro Fernandez: Great <Jim>, so you pull out that nice problema from your Puzzle's Gold Treausure Coffin? And do you agree with me your ones even not yet Medium category It has been reachable? (Nice, though!).

Merry Christmas <Jim>.

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