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Alexander Beliavsky vs Robert Roskar
European Club Cup (2008), Kallithea GRE, rd 5, Oct-21
Queen's Indian Defense: Fianchetto Variation. General (E15)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Dec-05-18
Premium Chessgames Member
  Phony Benoni: I found 31.Rfxh5+ (Right Rook!) Nxh5 32.Rxh5+ Kg7 33.Qg3+ Kf6 34.Qf3+ Kg7 35.Qg4+ Kf6 36.Rf5#. Black has assorted queen interpositions, but that are futile.
Dec-05-18  ERinSTL: <Phony Benoni: I found 31.Rfxh5+ (Right Rook!)> Why does it matter which rook, Phony?
Dec-05-18
Premium Chessgames Member
  Jimfromprovidence: A nice side puzzle is to determine if black can do anything to avoid a forced mate after 30 Kh2.


click for larger view

Dec-05-18
Premium Chessgames Member
  al wazir: I came up with the slow, stodgy, unimaginative, but ultimately effective 31. Rxh5+ Nxh5 32. Rxh5+ Kg7 33. Qg3+ Kf6 34. Qf3+ Kg6/Kg7 35. Qg4+ Kf6 36. Rf5#.
Dec-05-18
Premium Chessgames Member
  agb2002: White has a bishop for a knight and two pawns.

Black threatens Nxf5.

White has a mating attack, starting with 31.Rfxh5+ Nxh5 (31... Kg8 32.Rh8# or Ne7#) 32.Rxh5+ Kg7 (32... Kg8 33.Qg3+ Qg5 34.Qxg5#) 33.Qg3+ Kf6 (33... Qg5 does not even delay mate at any moment) 34.Qf3+ Kg6(7) 35.Qg4+ Kf6 36.Rf5#.

Dec-05-18
Premium Chessgames Member
  ChessHigherCat: All time easiest Wed.:

31. Rfxh5+ Nxh5 32. Rxh5+ Kg7 33. Qg3+ Kf6 34. Qh4+ Kg7 35. Rh7+ Kg8 36. Ne7#

Watch me do it with the other rook, Ma!:

31. Rhxh5+ Nxh5 32. Rxh5+ Kg7 33. Qd4+ Kg6 34. Qg4+ Kf6 35. Qh4+ Qg5 36. Qxg5#

Dec-05-18  saturn2: I saw 31. Rfxh5+

31...Nxh5 (Kg8 32. Ne7#) Rxh5+ Kg7 33. Qg3+ Kf6 34. Qh4+ Kg7 35. Rh7+ Kg6 (or Kg8) Ne7#

Dec-05-18
Premium Chessgames Member
  Phony Benoni: <ERinSTL> I guess it doesn't matter after all. After 31.Rhxh5+ Kg8 White doesn't have the immediate 32.Rh8#, so I rejected the line without going into the deep analysi require to find 32.Ne7#.
Dec-05-18  talwnbe4: 31. Rfxh5+ Nxh5 (31..Kg8 32. Rh8 mate) 32. Qf6+ Kg8 [32.. Kh7 33. Rxh5+ Qh6 ((33..Kg8 34. Qh8 mate)) 34. Qxh6+ Kg8 35. Qh8 mate]33. Ne7 mate
Dec-05-18
Premium Chessgames Member
  agb2002: <Jim> Black can try 29... f6 to open an escape square but White can control all the squares around the black king and thus force mate relatively soon. For example, 30.Rfxh5+ Kg8 31.Qf5 Ng7 32.Rg3 Kf7 (32... Qg5 33.Rxg5 fxg5 34.Ne7#) 33.Rxg7+ and mate next.
Dec-05-18  saturn2: After 21...Qxg3?

comes 22. Qd4 threatening to trap the queen by Re3

Dec-05-18  areknames: Like others I didn't consider 32.Qf6+ but saw almost instantaneously that capturing twice on h5 followed by Qg3+ will eventually win. If I'd had a few minutes on the clock I would have happily played that OTB.
Dec-05-18  Walter Glattke: 32.-Kg8 33.Ne7+ Kh7 34.Rxh5+ Qh6 35.RorQxh6# After 31.Rfxh5+ Nxh5 32.Rxh5+ Kf6 33.Qg3+ Kf6 white also could play 34.Qf3+ Kg7 35.Qg4+ Kf6 36.Rf5# to prolongue with queen sac.
Dec-05-18  gofer: Nc6 is a "god". With Pd5, Nc6 not only threatens Ne7# ,if Kh8 gets forced to g8, but also they create a wall (e7/e6/e5) that stops any escape for the forlorn black king. So we just need to open up the king side and use our 2R+Q to out match black's N+Q+P defences. I am not sure that we cannot take Ph5 with either rook; both seem fine. It is just that Rfxh5+ is more "forcing" as it threatens another mating threat where as Rhxh5+ doesn't.

Either way it looks like a forced mate in 6.

<31 Rfxh5+ ...>

31 ... Kg8?
32 Rh8#/Ne7#

31 ... Qh6?
32 Rxh6+ Kg8
32 Rh8#/Ne7#

<31 ... Nxh5+>
<32 Rxh5+ ...>

32 ... Kg8?
33 Qg3 Qg5
34 Qxg5#

<32 ... Kg7>
<33 Qg3+ ...>

33 ... Qg5
34 Qxg5#

<33 ... Kf6>
<34 Qh4+ mating>

34 Qf3+ looks equally fatal for black, but I still prefer Qh4+ as it seems to be a lot quicker...

34 ... Kg7
35 Rh7+ Kg8/Kg6
36 Ne7#

34 ... Kg6
35 Ne7+ Rg7+
36 Rh7#

34 ... Qg5
35 Qxg5#

~~~

Ho Ho Ho. Didn't see/choose 32 Qf6+. It seems to be one move faster... Doh!!!!

:-)

Dec-05-18
Premium Chessgames Member
  OhioChessFan: Either Rook capture wins, but I knew right away just blasting away with Rhxh5+/Rh5+ surely wasn't the point of the puzzle. And that Knight over on c6 looks like a piece in a composed puzzle, so surely he had to enter into it.
Dec-05-18
Premium Chessgames Member
  malt: Gone for 31.Rf:h5+ N:h5
(31...Kg8 32.Ne7# /Rh8# )

32.Qf6+ Kh7 33.R:h5+ Qh6 34.R:h6+ Kg8
and a choice of mate!

Dec-05-18  RKnight: This is a great puzzle! Not very hard but quite beautiful. I had to post this, since I complained about a couple of earlier "puzzles" that weren't.
Dec-05-18  Cheapo by the Dozen: The only thing tricky about this puzzle is that the ideas might come in a weird order.

Take the h-pawn? Obvious.

Q-f6+? Ditto. Oh, wait; f6 is getting defended.

Realize that the rook must be chosen to keep the knight pinned? OK. Q-f6+ is back on the menu.

N-e7+ takes care of the g8 square? Great!

Oh, wait -- Black's king can move to h7 post-pin? The knight isn't defended, so the attack renews!

Dec-05-18  TheaN: Wednesday 5 December 2018

<31.?>

Interestingly, <the Knight does not have to play a part altogether> and this is how I originally solved it. Not that I missed Nc6, I just set up the mating net with the Rook on h5.


click for larger view

<31.Rfxh5+> now it DOES matter as the battery threatens Rh8#. Rhxh5+ is only a draw apparently to SF9.

<31....Nxh5 (Kg8 32.Rh8#) 32.Qf6+ Kg8> Kh7 is similar but forced <33.Rxh5!> and Black's hopeless against the mate just as much. SF still announces mate (in six) after Qf4 and QxQ.


click for larger view

So, Knights. Who needs 'em.

Dec-05-18  TheaN: In a way it's a bit sad for Black that White ended up not needing his most aggressively posted piece for the final combination.
Dec-05-18
Premium Chessgames Member
  OhioChessFan: I know how Black feels.
Dec-05-18
Premium Chessgames Member
  Breunor: Always like Beliavsky's games, he's aggressive often with complex positions.
Dec-05-18
Premium Chessgames Member
  landshark: Pretty easy for Wednesday I thought -
31.R5xh5+ is my choice:
.... Kg8 32.Ne7#
.... Nxh5 32. Qf6+,Kh7 33.Rxh5+,Qh6 34.Rxh6+,Kg8 35.Ne7#

32.... Kg8 33.Ne7+, Kh7 34.Rxh5 mating.
Saw all this rather quickly - must have been the coffee :)

Dec-05-18  TrczkWszczinsk: Saturn: After 21...Qxg3 not 22. Qd4?? Qxe1+ but I think 22. Rd4! threatening to trap the queen by Re3 is hard to parry.
Dec-05-18  Geronimo: Such elegance! This is a lovely mate.
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