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Viktorija Cmilyte vs M Gutad Iversen
EU-ch U12 Girls (1994), Herculane, rd 3
Queen Pawn Game: Chigorin Variation (D02)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-06-14  Cheapo by the Dozen: Oopsie for referring to the players as "he".

Black wasn't a very good player.

Nov-06-14  cocker: Nice combination by any U-12, boy or girl.
Nov-06-14  eblunt: Black must have been Gutted to lose like that :)
Nov-06-14  TheBish: V Cmilyte vs M Gutad Iversen, 1994

White to play (27.?) "Medium", White is up a knight.

Black must have counted on the threat of ...Qxf1+ to win material back, as in 27. Rfg1?? Qxf3+ 28. R7g2 (or 28. R1g2 Qf1+, repeating) Qxh5. Or more realistically, 27. Qh3 (or Rgg1) Qxd3 and the passed pawn might cause some trouble. But White can just ignore the threat on the rook, as she has a forced mate!

27. Rh7+! Kxh7 28. Qe7+ (or Qd7+) Kg6 29. Qg7+ Kxh5 30. Qg4#.

Always nice when you can see the mate at the end of the tunnel!

Nov-06-14  morfishine: My first impulse was 27.Rg8+ but after 28...Rxg8 28.Qxf6+ Kh7 29.Qf7+ Kh8 draw

So, lets go sideways instead of headfirst with <27.Rh7+> forcing 27...Kxh7 28.Qe7+ Kg6 and now <29.Nf4+> forks the Queen and the game is over


click for larger view

*****
I have to laugh, having spotted the Queen-fork, I completely overlooked the mate in 2 :)

*****

Nov-06-14  dimgrid: I followed the line with 27.Rg8+. It took me some time but it works out fine and elegant. 27. Rg8+ Rxg8 28. Qxf6+ Kh7 29. Qe7+ Kh8 30. Qe5+ Kh7 31. Nf6+! Kh8 (another move unleashes the white Rook and its all over in a few moves). 32. Nxg8+ Kh7 33. Qf5+ Kh8 34. Qf6+ Kh7 35. Qxh6+ Kxg8 36. Rg1+ 1-0
Nov-06-14  PONFERRADA: 27. Tg8+, me decanto por esa opción.
Nov-06-14  starry2013: 1. Rh7+
2.Kxh7 Qe7+
3.Kg6 Qg7+
4.Kxh5 Qg4#

It became apparent early on that it had to be forcing, the black queen had checks.

Only two pieces could force, rook or queen. The rook was the only effective piece at doing that, then I simply had to find the right continuing checks to find the path to checkmate.

I don't know if it's cheating but I prefer playing a computer than thinking up the moves of both sides. First, it's hard enough thinking for one side. Second, it's way more fun beating someone than playing yourself

Nov-06-14
Premium Chessgames Member
  Penguincw: I would've played 27.Rg8+, but could only find 27...Rxg8 28.Qxf6+ Kh7 29.Qf7+ Kh8 30.Qf6+ etc., forcing a perpetual.
Nov-06-14  kyg16: What is wrong with CG? This week seems to be going from more difficult to easier as the days pass.
Nov-06-14  griga262: To me, this was the easiest puzzle this week...
Nov-06-14
Premium Chessgames Member
  Jimfromprovidence: I went for the 27 Rg8+ version as well.

After 27.Rg8+ Rxg8 28.Qxf6+ Kh7, finding first 29.Qe7+ Kh8 (29...Kg6?? Ng4#) then 30 Qe5+ below are the keys.


click for larger view

<agb2002> <Black threatens 27... Qxf1+ 28.Rg1 Qxf3+, perpetual. >

Just for the record, she can get more than that. 27... Qxf1+ 28.Rg1 Qxf3+ 29 Rg2 Qxh5 wins a rook.

Nov-06-14  BOSTER: I guess that <CG > has a good communication representing the <Clearance >sac. in POTD when Carlsen inspecting the playing hall of the WC Champ in the Sochi, what means the situation about match is now <clear>.
Nov-06-14
Premium Chessgames Member
  kevin86: I knew there was a sac in the hay, but couldn't find it. I looked for the queen sac, then the rook sac at g8- both failures. Oops day today.
Nov-06-14
Premium Chessgames Member
  Phony Benoni: It appears that <dimgrid> has found the key to making <27.Rg8+> work, and that it does indeed win. After<27,,,Rxg8 28.Qxf6+ Kh7 29.Qe7+ Kh8> (29...Kg6 30.Nf4#) <30.Qe5+~! Kh7 31.Nf6+!>


click for larger view

The key idea is that the Black king will eventually be forced to the g-file, when Rg1+ will provide a decisive strengthening of the attacc.

a) <31...Kh8 32.Nxg8+ Kh7> (Black avoids the g-file as long a possible) <33.Qf5+ Kh8 34.Qf6+ Kh7 35.Qxh6+ Kxg8 36.Rg1+ Kf7 37.Rg7+> and 38.Qh8#

b) <31...Kg6 32.Qf5+!> (stronger at the moment than 32.Rg1+) <32...Kf7> (32...Kg7 <33.Rg1+ Kf7 34.Nd5+ Ke8 35.Rxg8#) <33.Nd5+ Kg7> (33....Ke8 34.Qe6+) <34.Rg1+ Kh8 35.Qe5+ Kh7 36.Nf6+ Kh8 37.Nxg8+ Kh7 38.Qg7#>

c) <31...Kg7 32.Qe7+ Kg6 33.Rg1+ Qg2+ 34.Rxg2#>

Black can also toss in ...Qg2+ in other lines, but that just ups the move numbers by one.

This line raises the interest of the puzzle quite a bit. As we've seen, several solvers followed this path, and most were deceived into thinking it a draw. The 31.Rg8+ is actually more what you might expect of a Thursday.

I didn't think about the move at all. 31.Rh7+ was the first possibility that came to mind, and the calculation was quite easy after that, so I didn't bother looking further.

Whether you started with 31.Rh7+ or 31.Rg8+ is probably a product of your own individual life over the chessboard, a matter of which move triggered your own store of pattern recognition and unconscious--but hopefully pleasant--memories.

Nov-06-14
Premium Chessgames Member
  FSR: This is medium hard? 27.Rh7+! yadda yadda (the queen mates on g7 or g4 depending on how Black plays).
Nov-06-14  LIzzard: <morfishine> - glad to see someone else got seduced by the queen fork :).
Nov-06-14  sshhhh: Well, *I'm* ready to admit I failed. Seduced by 27. Nf6, threatening Rh7#, and if … Kxg7, then Rg1#. So then I assumed …Rxf6, 28. Qxf6, and mate in 3. Completely missed … Qxf1#, which is a shame as everything else was very pretty :)
Nov-06-14
Premium Chessgames Member
  scormus: I could have just about agreed with whoever thinks this week is in reverse. But I made it more difficult for myself today, hitting on 27 Rg8+. It looked like it would be winning, and so it would have. Unfortunately I failed to get it all the way to # in another 12 :(
Nov-06-14  patzer2: Figured it was a Rook sac leading to mate in this Thursday's puzzle. Looked first at 27. Rg8+!, but gave up when I saw it was getting complicated. Then calculated 27. Rh7+! for a quick mate-in-four.
Nov-06-14
Premium Chessgames Member
  Longview: I listened to a talk today(video) given at the St. Louis Chess club by FM Aviv Friedman but I obviously did not listen to his admonition that he always tells his students: "When assessing a position, first look at the condition of both Kings." I missed what <Once> (as always) points out is the prime motivator for White: Black's plan of 27....Qxf1+ if given the chance. Therefore, since I ignored that I thought that 27. Qf5 was a good move planning 28. Qh2++ as my followup. My rating is showing.
Nov-06-14  morfishine: <Lizzard> Thanks for looking but 'seduced' may be a bit strong: I simply saw the fork first and stopped analyzing. This doesn't fall into one of those lines where the annotations begin with "Also winning is..." :)

*****

Nov-06-14  Cheapo by the Dozen: <Once>,

Your ex-wife was the expert on how quickly you came you did things?

Nov-07-14
Premium Chessgames Member
  Once: If you have to explain a joke, it's not funny....
Nov-07-14
Premium Chessgames Member
  Bubo bubo: I only considered Rg8+ and after some work I found the lines given by <dimgrid> and <Phony Benoni>. Confused about the hardness of the puzzle, but also proud of my result I looked up the game, just to find that I have missed a mate-in-four. How disappointing! I did not even consider Rh7...
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