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Pekka Pietinen vs Carsten Randlov
Tradewise Gibraltar (2012), Catalan Bay GIB, rd 4, Jan-27
King's Indian Defense: Saemisch Variation. Normal Defense (E81)  ·  0-1

ANALYSIS [x]

FEN COPIED

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sac: 31...Rc3 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Feb-09-12  Marmot PFL: Rc3 was not too difficult to find, and typical of the kind of tactics white always has to watch for in the King's Indian.
Feb-09-12  BOSTER: The question is the same like yesterday <where to move the rook>.

What is important to understand in this <POTD>, that black queen can <reach> the g2 square not only from f3 which is obvious, but from e4 which is hidden in the shadow. So 31...Rc3!, and white can't protect e4 and f3 without losing the material.

Feb-09-12  Nemesistic: 31..Rc3 wins for White, but it took me 20 mins to find that!! I would never have seen this OTB, especially lately..
Feb-09-12
Premium Chessgames Member
  Once: <KingV93> It was. The immortal Marcellus Wallace.

Mind you, it is one of very few Pulp Fiction quotes that you can use on a family site without reaching for the * key!

Feb-09-12  Memethecat: <LTJ Wow! I'm the first guy to look at the 31...Rc3 32. Bc5 line.> But you've gotta admit, as lines go, its a pretty poor one. 8>D
Feb-09-12  BadKnight: I found the move in about few minutes. I realized the queen has to go to f3 but without allowing white time to defend. sac on g3 did not work, sac on f2 is probably not a good idea because white has d6+ complicating matter. I tried forcing move Rc3 preventing d6 discovered check. of course it allows Qxc3, but then once i saw Qxe4 i realized there is no defense.
Feb-09-12
Premium Chessgames Member
  anthro: I got a Thursday! Must be easy...
Feb-09-12
Premium Chessgames Member
  chrisowen: <anthro> It often in sac and fox!

alright ok isnt it down in wind squab carcass dark tower in c3,

second stage qe4 g2 mate. I give you in every it is kind for OE

hit a3 like liquorice c3 you bine qxc3 in pickle me it thickle

queen a2 holds on get rook into coccyx eg queen sac in free it

her guess black too cocky earlier on gen oose it sic in f5p?

Feb-09-12
Premium Chessgames Member
  chrisowen: <BadKnight> At terse chef our queen and rook took me a while

verificating blacks glory it repeat in complimentary dish of

swede in ham rc3 thorn qxc3 qxe4 after each in wool a cot rook

slide again all flag on abides chain c3 deflect queen in evermore

it little feint queen takes e4 milly on next win eg... maniac ha

ph5!

Feb-09-12
Premium Chessgames Member
  chrisowen: <Memethecat> Lucid it river sense it her exploit old off

loading bc5 still under the rook starting to fry.

Feb-09-12
Premium Chessgames Member
  Penguincw: I didn't even consider moving the rook along a rank!
Feb-09-12  VincentL: "Medium".

An immediate Rxb2 does not lead anywhere.

The move that strikes me is 31....Rc3.

If 32. Qxc3 Qxe4 and then Qg2# cannot be stopped. Any other queen move allows 32....Qf3, and again Qg2# cannot be prevented.

32. Bc5 might be the best try. After 32....Rxc4 33. Bxf8 Qxe5 34. Ra2 Bxf8 35. Bxb7 Qd4+ 36. Rff2 Bc5+ 37.Kh1 Qxf1#.

If white can stop the mate in this line (I donīt have time to check all variations) he will emerge with a serious material deficit of R for Q + B.

Time to check.

Feb-09-12  Auhm: 31. ...Rxg3
32. hxg3 Qf3
33. d6+ Kh7
34. Qa2 Qg2#

Taking with the h-pawn is a mistake as it blocks White's queen passage to the g2 square.

31. ...Rxg3
32. Bxg3

This should allow queen passage within the variations, making it the mate a more complex matter. 32. ... Rg3
33. Rxg3 Qxg3
34. Qa2 Bh6
35. d6+ Kh7
36. Rg1 Be3+
If
37. Bf2 Qg2#

If 37. Rf2 Bxf2
38. Kf1 Bxg3+
39. Qf2 Qxf2#
...38.Bxf2 Qg2#

Now that I check, I was completely off.. I must have overlooked something.

Feb-09-12  Memethecat: <chrisowen> You make an excellent point. I'd never really thought about it in those terms. I'm always willing to accommodate others points of view. So after some intense reflection I have to admit you may be on to something. many thanx
Feb-09-12  zakkzheng: This problem is easy
Feb-09-12
Premium Chessgames Member
  Gypsy: 31...Rc3! 32.Qa2! Qxe4! 33.d6+ Kh7 34.Bb6 Rc2 ... 0-1
Feb-09-12
Premium Chessgames Member
  Wayne Power: I also saw 31..Rc3 but, looking now at the game, I see 23Bd6 winning the exchange and with d6 still in reserve.
Feb-09-12
Premium Chessgames Member
  Jimfromprovidence: I went with 31...b5, like <FSR>, in order to drive the queen off of the 4th rank.


click for larger view

It's not a bad move, but it allows white more wiggle room. So if 32 Qc2 Rc3, white now has 33 Qd2.


click for larger view

Black now has 33...Qxe4, but white gains the tempo to move his bishop to a7 or b6.


click for larger view

Black now can exchange rooks, put his bishop on h6 and pick up white's c and d pawns.

Feb-09-12  sevenseaman: Having been on the wheel for almost the entire day yesterday, I did the puzzle rather haphazardly from a friend's computer.

Even after I'd posted my solution, despite my resolve not to think of chess, the ghost wouldn't vacate my head.

And I found a wee bit better defense for White. Here;

<31...Rc3 32. Qa2 Qxe4 33. Bb6 Rc2>


click for larger view

<34. Qxc2 Qxc2> (Ascendancy!)<35. Rf2 Rxf2 36. Bxf2 Qe4 37. Kf1 Qc4+ 38. Ke1 Qc3+ 39. Ke2+ Qxa1 40. cxb7 Qb2+>

I believe Crafty does something similar but I have not found the time to attend to it.

Feb-09-12  Patriot: <Memethecat> <<chrisowen> You make an excellent point...> I took <chrisowen> off my ignore list after reading your post just to see what he said. I have nothing against him personally--he's probably a nice person. But I just can't stand to read his posts because they are incoherent. I have no idea what he's trying to say half the time and it's very annoying to read them, so I keep him on ignore.
Feb-10-12  DrGridlock: It doesn't relate to the puzzle solution, but the moves prior to the puzzle are somewhat interesting.

White has about a 200 rating point advantage over black, and has a near winning position at move 28. However, 28 Kg2, followed by 29 Qc4 have to be among the two worst back-to-back moves ever played, and give the game quickly to black.

I can come up with no rationale for what White gains by "fianchettoing" his king with 28 Kg2, other than to allow black to play h3 with check and save a tempo. After black has moved his rook to f3, the only response which saves the game for White is to move his pawn to h3.

If this was a game played between Keres and Botvinnik, people would be developing conspiracy theories.

Feb-10-12
Premium Chessgames Member
  Once: <DrGridlock> Agreed. Those two moves by white do look odd. He might have been afraid that black was going to take three times on g3 with the sequence 28...Rf3 29. Qc4 hxg3 30. hxg3 Rxg3 31. Bxg3 Qxg3+

Incidentally, Fritz also reckons that there was another pair of poor moves. 29...Rcf8 should have led to no more than a level position after 30. d6+ and 31. Rae1. Better for black was to play his Rc3 move straight away.

But after white plays 30. c6, the combination is possible again.

All in all, mistakes all round.

Feb-10-12  LIFE Master AJ: 31...Rc3!; 32.Qa2, QxP/e4; 33.B-any, Rc2 " "
Feb-10-12  LIFE Master AJ: I did not check that with an engine, you would be wise to do so.
Jul-23-12
Premium Chessgames Member
  perfidious: < DrGridlock: ....White has....a near winning position at move 28. However, 28 Kg2, followed by 29 Qc4 have to be among the two worst back-to-back moves ever played, and give the game quickly to black....>

White had 27.d6 at his disposal. There's more than one way to meet the threat of 28.d7, but I see little to help Black. On 27....Rf8 28.Bd2, followed by exchanging rooks leaves nothing to set against the powerful passed pawn. Another possibility would be 27....Rcd8 28.Ra2. Once this rook enters the fray, it's problematic whether the game can be saved.

<....If this was a game played between Keres and Botvinnik, people would be developing conspiracy theories.>

Entirely possible....s-s-s-s-h! Don't get 'em started!

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