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Suan-Shiau Evans-Quek vs Ivan Cheparinov
Calvia Olympiad (2004), Calvia ESP, rd 1, Oct-16
King's Indian Defense: Orthodox Variation. Aronin-Taimanov Defense (E97)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Given 20 times; par: 32 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Mar-20-12  sevenseaman: <Oxpawn> Your solution

<34. Qxh2+
35. KxQ Nf3+
36. BxN Rh4++
Or 36. Kh3 (or Kh1) Rh4++>

or

34. Qxh2+
35. Kxh2 Nf3+
36. Kh1 Rh4+
37. Bh3 Rxh3+
38. Qh2 Rxh2#

or <viking78>'s

<34...Qxh2+ 35.Kxh2 Rh4+ 36 Bh3 Ng3 37.Kh1 Rxh3+ 38.Qh2 Rxh2#>

or the text

are all correct. Blasphemy if anyone says there is any hole in your line. The computers just like to be efficient and prefer the shortest.

I think you knew it to be correct and no axe could possibly fall. Understatement?

Mar-20-12  viking78: <sevenseaman> I am pretty sure that 1.Rf3+ is the first move now don't know what black respond, maybe 1...Rf6 (Kg8 not good cause Rf8+; if Ke6 then Re3+ Kf7 Qf4 ; if Kxg7 Qe5+ Kg8 Rxg6 Qxg6 Qxe7 and white is 2 pawns up) Now 2. Rxf6 Kxf6 could end in a draw, so force with 2.Qxe7+ Qxe7, which i see also not good for white, it must be something else but not enough time and I have to give up.
Mar-20-12  newzild: <Oxspawn> Your variation also wins. Well done. It actually transposes to the game if White doesn't capture the knight.
Mar-20-12  viking78: <sevenseaman> PS. could be a win by pawn promotion on A file cause any black move is pinned bye white Queen lol (joke)
Mar-20-12  Limpin Kt: <7cmn> just saw ur puzzle. I'm trying. Plz don't post the answer until then. Thanku.
Mar-20-12  desiobu: The active rooks and insecure king suggest the solution.
Mar-20-12  Limpin Kt: <7cman> isn't Rg6!?kg6 Qe7Qe7 g8=Q a won endgame? My theoritical knowledge with queen only endgame limits my possibilites of analysis.. :(
Mar-20-12  viking78: <Limpin Kt: <7cman> isn't Rg6!?kg6 Qe7Qe7 g8=Q a won endgame? My theoritical knowledge with queen only endgame limits my possibilites of analysis.. :(> looks good 2 pawns up I think u solved it
Mar-20-12  viking78: PS and white will win with his A pawn like i said :)
Mar-20-12  Limpin Kt: <vking> :)
Mar-20-12  Jim Bartle: My solutions for the rest of week:

White to win: Qxh7
Black to win: Qxh2

Mar-20-12  sevenseaman: Terrific <Limpin Kt> You cracked it, congratulations. <Viking78> was hovering close.

Well you guys are keen puzzle solvers but I cannot post many puzzles on the POTD site as it will muddle up the main puzzle site.

I have got many puzzles, even harder ones. If you guys had a chess forum I could post them there.

What I suggest you visit my forum (just click on my handle or avatar and you'll get to my forum) and indicate if you wish the puzzles posted there ( and you post their solutions only there). I will follow up your desire whatever it is.

Mar-20-12
Premium Chessgames Member
  Oxspawn: Thank you <sevenseaman> and <newzild>. Seriously though, sevenseaman, not understatement. I often check and then recheck positions, and feel confident until someone shows me different, and the position crashes around my ears. I don't mind - you learn through your mistakes, but just occasionally it is also nice to learn from doing something right!
Mar-20-12  PinnedPiece: <Oxspawn: White has some promising attacking moves but is choking rather than protecting the white king. “Quick sir, jump in this iron suit and let me lock you in.” I think this goes: 34. Qxh2+
35. KxQ Nf3+
36. BxN Rh4++
Or
36. Kh3 (or Kh1) Rh4++ with the knight protecting the rook>

This is what I had. Took me about 35 seconds to confirm.

.

Mar-20-12  hugogomes: <Oxspawn>, your solution is no less correct than Rh4+ first. Game ends at move 38 with mate in any of the two correct variations. Move order in this case is not important.
Mar-20-12
Premium Chessgames Member
  kevin86: This one is destined to end badly for white. After the queen sac-the encroaching knight gives the final move an Arabian flavor:

34...♕h2+ 35 ♔xh2 ♖h4+ 36 ♗h3 ♘f3+ 37 ♔h1 ♖xh3+ 38 ♕h2 ♖xh2# kismet

or yachtzee,if you don't have the colored dice.

Mar-20-12
Premium Chessgames Member
  Once: The interesting thing here is that black just kept on hammering at the h file. No matter how many pieces white put on the file, black just kept on hammering away. You might call it a woodpecker mate. Rat-a-tat-a-tat.

Oxspawn's solution is fun and just as good. I suppose that I gravitated towards 35... Rh4+ because it only gives white one reply. And variations that give our opponent only one reply are often interesting.

But 35...Nf3+ also mates. Okay, so it might give white three different replies but each of them end in a grisly demise. Well spotted, sir!

Mar-20-12  dragon player: A lot of pressure on the white king. A sac to finish it:

34... Qxh2+
35. Kxh2 Rh4+
36. Bh3 Nf3+
37. Kh1 Rxh3#

Must be a solution, maybe there are more, with
35... Nf3+ for example.

Time to check.

--------------

Yeah, I was right.

2/2 now

Mar-20-12
Premium Chessgames Member
  Penguincw: I got the puzzle, but missed how many blocks and moves white still had.
Mar-20-12  KingV93: Well...I missed the 'obvious' move, unfortunately, and it is rather apparent, though tough for a Tuesday.... but what is the opinion here of 34...♕xf2 35.♗xe5 ♕xg2+ 36.♖xg2 ♖f1+ 37. ♖g1 ♖fxg1#

Probably just overcomplicating the more elegant puzzle solution given but I looked at 35.♗xe5, 35.♗e4, 35.♕d1 and can't seem to find a good refutation. Since there are many stronger players here and good analysts as well I was hoping to solicit an opinion without resorting to Fritz, not that there's anything wrong with that, just don't feel like it today.

Mar-20-12  zb2cr: <viking78>, Consider yourself acknowledged... and I missed <VincentL> too.
Mar-20-12  sevenseaman: <KingV93> <Well...I missed the 'obvious' move, unfortunately, and it is rather apparent, though tough for a Tuesday.... but what is the opinion here of 34...Qxf2 35.Bxe5 Qxg2+ 36.Rxg2 Rf1+ 37. Rg1 Rfxg1#

Probably just overcomplicating the more elegant puzzle solution given but I looked at 35.Bxe5, 35.Be4, 35.Qd1 and can't seem to find a good refutation >. and continued...

I do not have an engine to be sure of 35.Qe1 but to my peasant mind it looks to be the refutation of your otherwise solid line.

Mar-20-12  stst: Purely by eye-balling:
34.... Qxh2+
35.Kxh2 Rh4+
36.Bh3 Nf3+
37.Kh1 Rxh3#

All White moves are forced.

Mar-21-12  sevenseaman: <KingV93> 35. Qe1 was a typo.

34...Qxf2
35. Qd1 Rg4
36. Bxe5
(and Black loses momentum as his Q+ can be handled)
36...Kg8
37. Qd8+ Qf8▢
38. Bd5+

swings it White's way.

Mar-21-12  KingV93: <sevenseasman> Thanks for the response and taking time to look at my idea.

If 35.♕d1 then 35...♖d4 36.♗xd4 cxd4 37.♕xc4 ♕xg1 38.♔xg1 ♘f3+ puts Black in command.

What does White do after 35.♖d4? Ah, I see, ♕h5 spoils the fun for Black. oh well, almost a great idea. Thanks for the help!

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