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Alexander Vasilyevich Filipenko vs Fabian Lipinsky
5th HIT Open (2000), Nova Gorica SLO, rd 9
Sicilian Defense: Richter-Rauzer. Classical Variation (B63)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Given 28 times; par: 32 [what's this?]

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sac: 24...Rxa2 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Dec-26-07  znprdx: Reading some of the posts, I see eggnog overflowing...

<Chesstalesfan:&fictionist:> 25.Ne3 is too little too late. Bxe3[N] 26.Qxe3[N] Qxc2+ 27.Ka1 Rxa1+ 28.Kxa1[R] Ra8+ 29.Qa7+ Rxa7[Q]#

What makes the immediate ...24.Rxa2 difficult is to see that 27.Ra3 cannot hold the position which I thought, so started looking at ...24.b3)

BTW 24... Rxa2: 25 Kxa2 Qa5+ 26.Ra3 b4xa3[R] 27. b3 <Dr. J: (not 27. b2xa3? Rc3) Now what?> simply ...Qc3 :)

Black's control of the black squares is overpowering.

Even if White had played 24.Ne3 as probably envisioned, an amusing variation is ....24.Qa7 25.Nd5+ Kf8 26.White is in zugswang.

Dec-26-07  micartouse: <dzechiel: I stand corrected! Of course white can play 27 c4, I have no excuse as to why I didn't see this move. <sigh>>

Maybe because in situations like this, one subliminally rules out 27. c3 b3 which doesn't help White a bit. But 27. c4 so the rook can capture the b-pawn ... I just didn't account for that.

Dec-26-07  alphee: I got this one easily and it seems white does not have any saving moves after 24..... ♖xa2, at least among the ones I tested eg: 24.... b3 or ♖a3
Dec-26-07
Premium Chessgames Member
  DarthStapler: I didn't see it either, Dzechiel. My solution was pretty much the same as yours.
Dec-26-07  VaselineTopLove: Similar to Ivanchuk-Anand from Linares 1998!
Dec-26-07  xrt999: <dzechiel: I stand corrected! Of course white can play 27 c4, I have no excuse as to why I didn't see this move. <sigh>>

d, as usual Im not following your logic! (This is a compliment by the way)

27.c4? is a horrible move, it just loses immediately, whereas 27.Ra3 interposes the rook and leads to a complex position. If black does not play perfectly there is a possibility of a perpetual.

I plugged 27.Ra3 into my engine (I also picked 27.Ra3) and the game went on for another 10 moves after 27.Ra3 bxa3 28.c3 Bc1! before white succumbed.

27.Ra3 is better than 27.c4; why are you seemingly beating yourself up because Filipenko played the inferior move?

Dec-26-07  blair45: <Funicular:>
<BTW (i'd like to see many replies to this one) do you open the game and go forward till the moment before the move to be guessed is played? (of course without seeing the move, just focusing on the board, as it's bigger you see it better) or do you reproduce the position in a real board? how do you do?> I like to play up to the diagramed position. If I haven't solved it by looking at the diagram,I try one final time. I believe that playing over the game helps me with my openings and gives me some insight into the player's strategy. Black's bishop at h6 is the real killer here.

Dec-26-07  xrt999: this would actually be a great puzzle after 27.c4, its mate in 6 for black!
Dec-26-07  MaxxLange: I wound up rejecting 24...Rxa2 because I didn't see a clear win against 25. Kxa2 Qa5+ 26. Kb3. Probably 26...Ra8 busts that defense, but, that and other complications led me to just give up and check the game score.
Dec-26-07
Premium Chessgames Member
  YouRang: Like <dzechiel>, I missed 27. c4, and thus the play required to win in that line.

I considered 28. c3, after which 28...b3 seals off the mate. I must not have thought that c4 made the difference.

It shows how careful one must be before launching a sac attack.

Dec-26-07
Premium Chessgames Member
  YouRang: <xrt999> I would agree that 27. Ra3 is better than 27. c4, but you don't want to be surprised by a response you didn't consider after investing a rook sac.

Obviously, black gets his rook back after 27. Ra3 bxa3, but black's Q+R+B+P attack on the weakly defended white king's position will be too much to withstand.

Dec-26-07
Premium Chessgames Member
  kevin86: Nice finish! The mate threats are lethal along both a-and c files. This is mate-around-the corner.
Dec-26-07
Premium Chessgames Member
  zenpharaohs: "Anyway, as it turns out, when I see the puzzle on the home page, I have a problem with my screen... it is quite dark, and it is hard to see the black pawns on dark brown squares.... and yes, the puzzle I analyzed for so long, and worked so hard to write up with every nuance, was missing one of the black pawns."

That's not as bad as my not remembering the correct player to move. I know what you mean about the black pawns on brown though. I have that problem with some programs and I have nothing wrong with my screen. There is a reason you want black and white pieces on green and beige squares.

Dec-26-07  chessmoron: Visit my forum PROFILE for a <NEW CHESS PUZZLE> if you are done with this puzzle of the day.
Dec-26-07  Dr. J: <goodevans> and <znprdx>, you are of course correct that 26 Ra3 bxa3 27 b3 is refuted by Qc3. This suggests that White's best is 26 Ra3 bxa3, 27 b4 Qxb4, 28 c3 Rxc3 when White with a naked King is already down 2 pawns, but can struggle on a little while. Yes/no?
Dec-26-07
Premium Chessgames Member
  gah: 24...b3 looks best to me, threatening bc+. If 25 ab, then Rai+ 26 Kxa1 Qa5+ 27 Kb1 Ra8 and mate next move. If 25 c3, then Rxa2+ 26 Nd2 Ra1+ 27 Kxa1 Qa5+ 28 Kb1 Qa2+ and mate next move
Dec-26-07
Premium Chessgames Member
  whiteshark: So where could white have done better ?
Maybe by keeping the a-file closed ?!

<20.Ne3 Bxe3 21.Qxe3> might be an idea...


click for larger view

Dec-26-07  Civhai: I found the solution played in the game. But what about declining the sacrifice?

That's what I hate most: Sacrifice lines are often found easily, but you always have to refute the declining of the sacrifice. Also, there are usually many possibilities and so there is a lot to calculate.

Dec-26-07  soberknight: Yeah, declining won't do any good. Black plays Qa5 next move regardless, then Ra1 and it's all over.

I got the analysis right until the last move, where I had b4-b3+, but from the initial position, that's still a good depth for me. As I move along over the board, I will recalibrate to see if there's a better move than the one I selected in my previous analysis.

Dec-26-07
Premium Chessgames Member
  dzechiel: <xrt999: 27.Ra3 is better than 27.c4; why are you seemingly beating yourself up because Filipenko played the inferior move?>

Mostly because I didn't consider the move at all. When I was trying to calculate moves in my head, I thought that if white didn't play 27 Ra3 that 27...Qa1 would be mate.

It's nice that the move I chose for white was superior, but bad that I missed the possibility of 27 c4 altogether.

Dec-26-07  stefanoleccardi: This is what Nimzowitsch calls "the revolutionary attack on the a2 pawn"!
Dec-26-07
Premium Chessgames Member
  whiteshark: <stefanoleccardi> How would an <evolutionary attack on the a2 pawn> looks like, to be seriously ?
Dec-26-07  GannonKnight: I thought that it was Rxh2, but I didn't see all the following moves. :-(
Dec-27-07  DukeAlba: At first I was looking at b3 but then after looking closer I decided that Rxa2 is better.
Dec-27-07
Premium Chessgames Member
  patzer2: Black takes advantage of the weak Queen-side castled position with the demolition sham sacrifice 24...Rxa2!!, setting up a winning double attack in the final position after 28...Qxc4+ .
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