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< Earlier Kibitzing · PAGE 2 OF 3 ·
Later Kibitzing> |
Apr-03-12
 | | Once: The rook sac and knight fork pave the way for the h pawn to promote. |
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| Apr-03-12 | | mohannagappan: 33 Rxg7+ Rxg7 34 Nh6+ king any move, Black lost its queen |
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Apr-03-12
 | | sevenseaman: White is a P better but down an exchange, a R for a N. First thoughts: a wild and funny one, g7 being pinned I feel like a N+ from e7. Qxe7 Bxf6 and Q cannot recapture on a/c of my Q. But more serious thought for now. The point is White gave up a R for a N. Let us assume he thought it would pay off better. Do I see that? Hmm... not yet. Black R stops the N from checking from h6.
Aah yes, I do see it;
<33. Rxg7+ Rxg7> (it could hardly be with the Q) <34. Nh6+> (forking the K and the Q). <34...Kf8> (not forced but better than 34...Kh8 and another check). <35. Nxf7 Rxf7>
36. g4 or Bxf6? Not having an engine, I have no way of knowing. g4 looks quite good to me. Bxf6 creates a self-pin. It pins the R to the K though but that could evaporate, chancy. Merely on gut feeling I will go with <36. g4> It will be unfair to say 1-0 at this stage. White is down a piece. Perhaps he will have to think of a promotion. I'll just say White has better chances or at least even. My wilder fancy, academic now.
33. Ne7+ Qxe7 34. Bxe7 Qa7 35. h7 Bxf2+ 36. Qxf2 Qxf2+ 37. Kxf2 Rf8 38. Rxg7+ Rxg7 39. hxg7 (B is pinned and White loses) Is it any good to have wild thoughts?
One more thing before I post. To me it looked more like a Thursday than a Tuesday. |
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Apr-03-12
| | sevenseaman: Its the other one <36. Bxf6>. Makes the promotion of h P easier. No matter, Crafty will fight both of them. I have been spending excessive time on my post. Look how succinctly <Once> says just as much; <The rook sac and knight fork pave the way for the h pawn to promote>. The fine art of conveying your thoughts without being garrulous! |
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| Apr-03-12 | | viking78: 33.Rxg7 wins material with either 33...Rxg7 34 Nh6+ fork Queen and King, or 33...Qxg7 34.Nxg7 Rxg7 and white has a free h-pawn. Anyone visited game of the day? I have problem to see black win there after 27.Ke3. |
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Apr-03-12
 | | agb2002: White has a knight and a pawn for a rook.
White would deliver a knight fork on h6 if the rook didn't control that square. Hence, divert it with 33.Rxg7+: A) 33... Rxg7 34.Nh6+
A.1) 34... Kf8 35.Nxf7
A.1.a) 35... Rxg7 36.Bxf6 + - [Q+3P vs 2R], with the threat h6. A.1.b) 35... Kxf7 36.Qxf6+ Kg8 37.h6 R7a7 (say) 38.Qg6+ Kf8 (38... Kh8 39.Bf6+ and mate next) 39.h7 + -. A.2) 34... Kh8 35.Nxf7 Rxf7 36.Bxf6+ is similar to A.1.a. A.3) 34... Kh7 35.Nxf7 Rxf7 36.Qf5+ Kg8 37.Bxf6 is similar to A.1.a. B) 33... Qxg7 34.Nxg7 Rxg7 (34... Kxg7 35.Qxf6+ Kg8 36.h6 is similar to A.1.b) 35.Qxf6 Rf8 36.Qe6+ + - [Q+3P vs 2R]. For example, 36... Rgf7 37.Kf1 Kh8 38.f3 and White can resume the attack. C) 33... Kf(h)8 34.Rxf7 + - [Q+N+2P vs 2R] is even worse. |
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Apr-03-12
| | sevenseaman: <scormus> <Easy to see that 33 Rxg7+ sets up the royal fork but IMO it's necessary to see the follow on play to reach the 1-0 position.> You put your finger on a painful nerve. Not merely shirking or being lazy, I guess I am part of the gang that wont risk going wrong. 'Undeservedly long for a Tuesday' was a factor too. Who wants to work that hard so early in the week! Let Christmas come when its due. |
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| Apr-03-12 | | Limpin Kt: I got Rg7 very quickly, but i will agree with <scormus> that its difficult to see the follow up. But i just want to point some facts out- <1) R N combo is no match for Q except in very rare cases 2) Q B combo also considered little inferior to lone queen 3)in the book <positional sacrifices> which i think is published by cadogan, deals with the issue of queen vs R B combo in a chapter, which makes it instinctive to recognise winning <queen sac for R B combo>, so i suggest if anybody is interested in the issue, they can just refer it in the book. |
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Apr-03-12
 | | Memethecat: I love these cheeky little forks, knights add so much to the game. 33Rxg7+ Rxg7 34Nh6+ Kf8 35Nxf7 |
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Apr-03-12
 | | WinKing: Looks like 'g7' is the intended target. White has a few tries here: 33.Bxf6 Qxf6 34.Rg6 Qd8 35.h6 Ra7 36.Qg3 Qf8 <(I don't see how white can break through - g7 is well defended)> 33.h6 g5! 34.Bxg5 fxg5 35.Rxg5+ Kh8 36.Qg4 Rg8 37.Rg7 Rgxg7 38.hxg7+ Rxg7
39.Qh4+ Rh7 <(& white is fighting for a draw)> 33.Nxg7 Rxg7 34.Bxf6 Rxg3 35.Qxg3+ Kf8 36.Qg5 Qh7 <(whites assault has run out of steam)> 33.Qg4 Kh8 34.Qg6 Rf8 <(34...Qxg6 35.hxg6 Rh5  - hard to see where it goes from here> 35.h6 Qxg6 36.Rxg6 Rxh6
37.Nxh6 Kg7 <(& black is ok maybe slightly better)> 33.Rxg7+ Rxg7 34.Nh6+ Kf8 35.Nxf7 Rxf7 36.Bxf6 d5 <(threatening ...Ra6)>
37.h6 Ra6 38.Bg7+ <(white has all the chances & seems to be winning )>
Looks to be white's best try.
Let's see how Bartel handled this. (Sorry for any typos I did this in a bit of a hurry - busy day today.) |
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| Apr-03-12 | | Cibator: All else being equal, a rook-pair is usually at least a match for a lone queen, even if a pawn or two to the bad. (For an instructive example, see D Byrne vs Reshevsky, 1957.) But here we have a good example of the sort of position where the rooks just can't get it together in time, and the queen prevails. |
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| Apr-03-12 | | CHESSTTCAMPS: In this middle-game attacking position, white has a slight material deficit (N+P for a rook), but all the play. White's attacking force has black's Q and Rh7 tied to passive defensive posts. The position of WN, BK, and BQ is a setup for a royal fork. 33.Rxg7+! Rxg7 34.Nh6+ does the trick. Although black will have something close to material parity with two rooks for Q, the stripping of the pawn shelter and the white h-pawn ensures the black king's quick demise: A) 34... Kh8 35.Nxf7+ Rxf7 36.Bxf6+ Kg8 (Kh7 37.Qf5+ Kg8 38.Qg6+) 37.Qg4+ Kf8 (Kh7 38.Qg6#) 38.Qg6 (h6? Bxf2+ allows counter-play) and the threat of h6 followed by Bg7(+) is decisive. B) 34... Kh7 35.Nxf7 Rxf7 36.Qf5+ Kg8 (Kg7 37.Qg6+ Kf8 38.Bxf6) 37.Bxf6 Kf8 38.Qg6 is similar. C) 34... Kf8 35.Nxf7 Rxf7 (Kxf6 36.Qxf6+ Kg8 37.h6) 36.Bxf6 followed by 37.Qg6+ is similar. |
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Apr-03-12
| | WinKing: 36.g4 appears to be a nice try also! Totally missed that possibility in my analysis. 33.Rxg7+ Rxg7 34.Nh6+ Kf8 35.Nxf7 Rxf7 <36.g4!> |
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| Apr-03-12 | | CHESSTTCAMPS: The game defense was more imaginative than my lines, but similarly hopeless. |
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Apr-03-12
 | | chrisowen: Cog afraid as glowing 33.rxg7+ coin operated nicked it new clear route form in gain it notice rookh7 over then it paves the way free for h6+ in general lift rok eg mi lare pad out in g3xg7 time ado the hammer Can't abstain flags a lot pick strip in queen pawn equal out it horse Castle ment ace Bartel. Open is it nuthatch back to back o be brawn it good to go-
33.rxg7+ rxg7 34.nh6+ kf8 35.nxf7 rxf7 36.bxf6 (  )
F8 i story for car park rookf7 hill iron high 36.bxf6 ball as tread as far as i got ha dry an it kins wallow your pride white in drivers seat f6 h5 f3 queen retired in either again pawn it ear in grund let rooks and hapless king fanciful a post in grade f6s too strong queenf3 over sat a yeah black is pigeon entree these nor flappin get rifle f5 street queen sweep off cashino h6 h7 baby bio groan win corner f3f5 escort easy finish lie man is hoof queen grid corrugated i carte 5f l0. do net ele comin craggy pro seek one ding dong battle up until dare 28...kh7 got in smoked gq4 snap inceed 29 rd3 g3 g7+ out rook leg in dogged a5 pawn? |
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Apr-03-12
 | | Clodhopper: The winning idea behind the rook "sac" isn't the fork (which only regains material parity) - it is the creation of the passed pawn. That is what wins the game. |
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| Apr-03-12 | | Capabal: This is way too much work for a Tuesday. The fork is immediately obvious but there are too many possible lines to examine, mainly because 34…Kh7 is just as playable, probably better, than 34...Kf8, and leads to a totally different continuation. |
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| Apr-03-12 | | YoungEd: The YoungEd juggernaut has not been stopped this week! There's always tomorrow... |
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Apr-03-12
 | | David2009: M Bartel vs Krasenkow, 2010 White 33?
click for larger view
For once the win against Crafty End Game Trainer is straightforward. Interactive link to the puzzle position as above: http://www.chessvideos.tv/endgame-t... |
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| Apr-03-12 | | TheaN: 3 April 2012
<33.?>
Material: Black up,  vs  +
Candidates: Nh6, h6, Bxf6, <[Rxg7†]> There are a few things I did wrong in analysing this puzzle. Checking initial material, I had the consensus Black was up a rook, not the exchange, for a pawn. White's still down, but that doesn't make the combination that urgent, Black's pieces are not well placed. Nonetheless, finally deciding on the keymove, the foremost moveorder is simple. <33.Rxg7† Rxg7 34.Nh6† Kf8> Kh8 just being the illogical move in this position, considering the kingside pawns will march up harrasing the king if he's in the corner. <35.Nxf7 Rxf7> Kxf7 being a blunder and plain suicidal. However. Now, I actually went with the straightforward analysis "White's better, but it's probably a draw", putting no effort into either 36.Bxf6 and 36.g4, thinking it goes too far for a Tuesday. It somehow does, but that doesn't warrant the fact that just up to move 36, is too few for true credit in this position. White repairs the material deficit, but is clearly winning. |
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Apr-03-12
| | sevenseaman: I knew Krasenko to be a high quality Polish GM. But Mateusz Bartel is brilliant young GM. Only 27 he won the European at the age of 18. He has a sizzling win against Caruana and a brilliant one against K. Sasikiran. |
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Apr-03-12
 | | kevin86: Notice the pieces on g3,g7,g8,f7,and h7 at move 33-remind you of something? this week? White wins the queen AND TWO PAWNS for a rook and bishop...And creates a passed pawn...which will queen soonest. |
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| Apr-03-12 | | cyclon: 33. Rxg7+ Rxg7 ( -Qxg7 34. Nxg7 Rxg7/Kxg7 35. Bxf6/+ White also gets winning game ) 34. Nh6+ and now despite Black King having 3 moves at his disposal the basic idea is that after 34. -K- 35. Nxf7/+ Rxf7 ( or in case of 34. -Kf8 35. Nxf7 Kxf7 36. Qxf6+ Kg8 37. h6 is devastating ) 36. Bxf6, White sooner or later - in this position - wins material or mates Black. Whether this is an "easy" puzzle or not, is another question. |
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| Apr-03-12 | | MarkFinan: <chrisowen> nailed it once again, lol... You did better than me buddy, i thought it started with h6? |
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| Apr-03-12 | | BlackSheep: I think on seeing what was required (finally) I took way to long to find it as it was so obvious that g7 is the weak point and its destruction is going to be the only way to blast the position open immediately <David2009> I must have made a meal of it then because I didnt quickly finish him off and I didnt particularly find it harder/easier than most days but I do enjoy the link though as I am fastidiously lazy and would never bother to set it up for myself . |
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< Earlier Kibitzing · PAGE 2 OF 3 ·
Later Kibitzing> |
sac: 25.Nh4