< Earlier Kibitzing · PAGE 4 OF 4 ·
|Apr-27-09|| ||xiko9: what about 29. ...Rxe8 30. Qxd4 Rad8 31.Qc3 d2 32.Rd1 Re1+ 33.Rxe1 d1=Q! ?|
|Apr-27-09|| ||xiko9: I think that black couldn't have resign if he saw that line....|
|Apr-27-09|| ||Patriot: <xiko9: I think that black couldn't have resign if he saw that line....>|
I tend to agree with you. After 34.Qxa5 though, black has lost two pawns (one from the queen promotion).
|Apr-27-09|| ||Dr. J: <eaglewing> and <hms123>: <29 Re8+ Rxe8 30 Qxd4 Rad8 31 Qg4 Re7 32 Kf1 Re7 33 Rd1 Rde8 34 f4 (34 Rxd2?? Re1#) Re1+ 35 Kf2 Rxd1 36 Qxd1 Rd8. Go on with 37. g4 and Ke2/Qxd2/KxRd2.>|
Yes, I agree. This is a clearly won K+P ending. Standard strategy will do: centralize the K, and use the K-side pawns to make an outside passed pawn. As Black has no counterplay, there is no need for analysis of variations.
And all it took was 12 moves of analysis to show that a Monday position is clearly winning.
|Apr-27-09|| ||hms123: <Dr. J> Your point is well-taken. This is why <Domdaniel's> post is worth reading carefully.|
|Apr-27-09|| ||Shams: <Domdaniel> <I threw away a potential win against an IM last year, by failing to grasp this.> |
|Apr-27-09|| ||Shams: As an example of "stings on the tail"; put the white king on h1 instead of g1 and white's combo loses on the spot.|
|Apr-27-09|| ||Marmot PFL: Re8+ wins a rook, or queen for a rook. Amazing that Yusopov missed a shot like that but we are all human even super-GMs.|
|Apr-27-09|| ||eaglewing: <Dr. J> and <hms123>: I think, it is even more critical. The transition to the pawn endgame may be mishandled easily.|
I'm not sure, but what Fritz suggested to play in the analysis by <hms123>:
<1. (4.55): 31.Qg4 d2 32.Kf1 Rd6 33.Rd1 Rde6 34.f4 Re1+ 35.Kf2 Rxd1 36.Qxd1 Rd8 37.f5> may be already an error. I was able to hold the position vs my Fritz 7 (and vice versa) following:
37. f5 c5 38. g4 Kf7 39. Ke2 Kf6 40. b3 Rd4 because after exchange on d2 the black king is able to infiltrate fast via g5/h4 to the pawn root h3 (or h4 is countered by h5 with the black king adjacent to f5).
Not immediately/soon exchanging on d2 needed careful play by black, but it was doable, because the white king, hold back by rook d4 to the rows 1/2/3 and lines e-h, was not able to support the white kingside pawns against the black king (preferably on f6) and the pawns g7/h6 (hold them there! Or take an advancing white pawn sacrifice, which Fritz tried without success).
In conclusion careful play is needed, even if 37. f5 does not throw away the win, it makes it much more complicated.
My earlier suggestion to just play f4 and g4 (Blacks h5 h3 hg hg or g5 f5 is doomed) on the other hand gives all time you need to exchange on d2 and clear the queenside situation, because the black king cannot couterattack via g5.
|Apr-27-09|| ||Kasputin: 29. Re8+ gives black's rooks too many defensive chores. And even if black sees the danger of capturing the rook and plays 29 ...Kf7, then white will play 30. Qxd4 and then black is forced to lose material.|
|Apr-27-09|| ||mworld: this one definitely was one of the easier monday's - on chesstactics I think they'd only rate this at an elo of 1200|
|Apr-27-09|| ||lightbishop c5e6: Very easy. 1. Re8+!Kf7 (1... Rxe8?? 2. Qxd4 ) 2. Qxd4 Rxd4 3. Rxa8
Found it pretty quickly.|
|Apr-27-09|| ||StevieB: I got it but it took longer than it should have. However, it was a rather neat eureka moment. Fun.|
|Apr-27-09|| ||The Rocket: hmm pretty advanced for a monday|
|Apr-27-09|| ||Utopian2020: Actually proving that white has a conclusively winning position requires analyzing deeply. While black loses his queen, he gets it back because white cannot stop the pawn at d3 from queening. White has somewhere between a 1 to 2 pawn advantage, but nowhere near the full rook advantage my initial analysis indicated.|
|Apr-27-09|| ||WhiteRook48: 29 Re8+ is easy|
|Apr-27-09|| ||JG27Pyth: Utopian2020: <Actually proving that white has a conclusively winning position requires analyzing deeply. While black loses his queen, he gets it back because white cannot stop the pawn at d3 from queening. White has somewhere between a 1 to 2 pawn advantage, but nowhere near the full rook advantage my initial analysis indicated.>|
I think YouRang's line shows how the d3 pawn <is> stopped.
|Apr-27-09|| ||c o r e: The first move of the puzzle was pretty obvious, but careful play is still required to convert the gained material into a win. Passed pawns and back rank weakness make a dangerous combination.|
|Apr-27-09|| ||EnovyT: hm how is this line for black?
29. Re8+ Kf7
30. Qxd4 Rxd4
31. Rxa8 d2
32. Rd1 Rxc4
without lookin at the endgame it seems that black can promote with no problem or is bring a pawn down too much? havent used a engine [ keeps crashin ]
|Apr-27-09|| ||Buttinsky: 33.Kf1,Rc1 34.Ke2 solves it.|
|Apr-27-09|| ||EnovyT: ah true thanks|
|Apr-27-09|| ||Marmot PFL: 33 Rd8 is even easier. i like the never say die attitude though.|
|Apr-29-09|| ||gawain: For the record (not that anyone will still be looking at this page) but I saw 29 Re8+ almost immediately. |
Yusupov must have been flabbergasted.
|May-11-09|| ||zb2cr: Recycled? This was a Monday puzzle only a couple of weeks back! See my comment on the first page of kibitzing.|
|Aug-17-11|| ||hedgeh0g: Black clearly missed the point of the insidious 26.e6!, pre-empting the natural-looking Nd4.|
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