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Anatolij Bannik vs Alexander Cherepkov
Moscow (1961)
Sicilian Defense: Paulsen Variation. General (B44)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-23-06  EmperorAtahualpa: Another tough one.....again I was unable to solve it. :(

I guess <chessgames.com> is giving all the overly confident kibitzer over here a lesson. :)

Feb-23-06  dakgootje: I missed it =(

I calculated this line first, but abandoned it as i didnt see anything after the first 4 half moves. So i went for Re1 which DOES win...well at least in the line which i calculated 36. ...♖e1 37. ♕d2 ♕g6 38. ♖g2 ♕b1 39. ♖xe1 ♖xe1 40. ♔f2 and black is much better (when i threw the position in Fritz8 it calculated: 36. ...♖e1 37. ♕d2 ♕g6 38. ♖g2 ♕b1 39. ♖xe1 ♖xe1 40. ♔f2 ♖d1 41. ♕xa5 ♕e4 42. ♕c3 ♕f4 43. ♕f3 ♕d4 44. ♕e3 ♖d2 45. ♔f3 ♕f6 46. ♔e4 ♕e6 47. ♔f3 ♕f5 48. ♔g3 ♕g6 49. ♔f4 ♖xg2 (eval -8.84; depth 12/51; 484.5M nodes)

Pity for me white has ...Re1 37. Qd3! and its only a draw

Feb-23-06  EmperorAtahualpa: <dakgootje> 36...Re1 was also my idea.
Feb-23-06  DexterGordon: <patzer2>, in the diagrammed position you gave after 38. Kh1!?, I had a hard time figuring out why White can't block the long diagonal with 41.Qf3 after 38...Rh5+ 39.Rh2 Ree5 40.Qd3 Qc6+.

Is the problem 41...Qxf3+ 42.Rxf3 Re1+ 43.Kg2 Re2+ and White loses a rook?

Feb-23-06  Tariqov: i'm suprise this a thursday puzzle,usually takes less then one minute for thursday but took me a while to find it,but i think this deserves to be a thursday puzzle, this puzzle is not much about calculation(compared to Fri,Sat,and Sun)but finding one hard move..(normally it doesn't come to mind to play Re2! because it looks like you are giving a queen)....Re2!!

<EmperorAtahualpa> and the other's who chose 36...Re1,why this move??Doesn't look like a move for a puzzle because normally it has checks,sacrifices,etc unless it is a very positional move which is unlikely for a tactical puzzle.Just giving my opinion.Thanks:)

Feb-23-06
Premium Chessgames Member
  patzer2: <Marco65> Good observation about the point of 38. Kh1 Rh5+ 39. Rh2<39...Ree5!> (solution to puzzle in my last post), being <after 40.Qg2 Rxh2+ White can't take with the queen> since her Royal Highness gets pinned by 41. Reh5 .

Also, after 38. Kh1 Rh5+ 39. Rh2 Ree5!, White can't get away with capturing with the Rook because 40. Rxh5+ Rxh5+ 41. Kg2 Qg5+! gives Black a winning pursuit combination (mates or wins the Queen).

Feb-23-06  EmperorAtahualpa: <36...Re1,why this move??>

<Tariqov> Basically because we couldn't think of the right response to it. :)

Feb-23-06
Premium Chessgames Member
  patzer2: The possible position after 39. Rff2 creates an interesting mate-in-four puzzle:


click for larger view

[If White plays 39. Rff2 (diagram above), find Black's four-move mate (Black to move, starting with 39...?).]

For a more difficult challenge, find two solutions (one where a Rook gives mate, and the other where the Queen gives mate).

Feb-23-06  DexterGordon: <patzer2>, thanks a lot for the supplementary puzzle!

What I see is 39...Re1+ 40.Kh2 Rh5+ 41.Kg3 Qg5+ 42.Kf3 Re3#, but I haven't found the solution in which the Queen mates yet. :-)

Feb-23-06  Fan of Leko: I saw this line, but after 38 Kh1 (instead of Qf2?)I can't find a win for black. So instead I picked 36...Qc5. I think it is better because it also threatens Re2, however I still couldn't find a win for black.
Feb-23-06  Fan of Leko: Finally I see it. The other rook can come up because the queen covers f8. maybe in a game a would see this (in the past i could) but not i don't concentrate on positions so well anymore.
Feb-23-06  Marco65: <patzer2> <Also, after 38. Kh1 Rh5+ 39. Rh2 Ree5!, White can't get away with capturing with the Rook because 40. Rxh5+ Rxh5+ 41. Kg2 Qg5+!> Yes but this is not another point for not choosing 39...Re3: 39...Re3 40. Rxh5 Qxh5+ 41. Kg1 [41. Kg2 Re2+ ] Rg3+ 42. Kf2 Qh2+ wins as well
Feb-23-06  dakgootje: <<dakgootje> 36...Re1 was also my idea.> See, best people does have the most creative ideas (which are not always the right ones in the case of solving puzzles)
Feb-23-06  Larsker: Great puzzle. I got the first part - but missed 38.. Re2!
Feb-23-06  Marco65: <patzer2> The solution with the queen might be 39...Re1+ 40.Kh2 Qe5+ 41.Kh3 Rh1+ 42.Rh2 Qg3# but White can throw some rook in-between at move 41, so it's note exactly mate in 4.
Feb-23-06  Nostalgia: hmm...I got up to 38. Qf2, didn't see ... Rf2!. Beautiful! Ah, I see I'm not the only one. Misery loves company :D

-Joe

Feb-23-06
Premium Chessgames Member
  patzer2: <DexterGordon> Congratulations on finding the solution to the puzzle for mate-in-four with the Rook. <Marco65> Congratulations also, as you solved it for mate with the Queen. After 39...Re1+ 40.Kh2, Black can try to cook the four-move mate solution (trying to make it mate-in-five) with 41. Rf4 Qxf4+ 42. Kh3 Rh1+ 43. Rh2 Qg3#. However, it's still mate-in-four after 41. Rf4 Qxf4+ 42.Kh3 Rh5#.
Feb-23-06
Premium Chessgames Member
  patzer2: <DexterGordon> As I understand, your're asking <after 38. Kh1!? Rh5+ 39.Rh2 Ree5 40.Qd3 Qc6+, why (can't) White block the long diagonal with 41.Qf3.> It's a good question, and makes for another interesting puzzle:


click for larger view

[After 38. Kh1!? Rh5+ 39.Rh2 Ree5 40.Qd3 Qc6+ 41. Qf3, find Black's winning move(s)?]

Hint: The solution involves some key deflections and a skewer.

Feb-23-06
Premium Chessgames Member
  kevin86: Another toughie! Re2 was a brilliant move as the queen cannot capture either queen or rook. (An interesting case of the double pin)
Feb-23-06
Premium Chessgames Member
  patzer2: <DexterGordon> Your solution to the above puzzle is correct.
Feb-23-06
Premium Chessgames Member
  YouRang: Well, I got as far as 36...Rg5+ 37. Rg2 Qc4+ 38. Qf2

I didn't see Re2 at all. :(

Feb-23-06  Stelling: <patzer2> After 41. Qf3 black wins easely with 41. ... Qxf3+ 42. Rxf3 Re1+ 43. Kg2 Re2+ grabbing a rook.
Feb-23-06  Castle In The Sky: I saw the move, but not the full line, I guess that's 1/2 credit.
Feb-23-06
Premium Chessgames Member
  patzer2: <Stellin> Congratulations! You got it. In your winning line, if 44. Rf2? then 44...Rxf2+ 45. Kxf2 Rxh2+! wins easily.
Feb-24-06  drnooo: This one I missed, in a way. Oddly the key Re2 move that everyone found so hard was easy enough, though I took the wrong way around at the start: My first move for a while was R e4 threateneing the queen check at g6, somehow the first check with the rook seeming too obvious , but once I finally tried the damn thing the rest went like clockwork.
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