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Arkadij Naiditsch vs Igor Khenkin
Dortmund (2013), Dortmund GER, rd 9, Aug-04
Caro-Kann Defense: Advance Variation. Botvinnik-Carls Defense (B12)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
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Jan-07-14  Amadori: bishop sac + deflection -> check -> and mate.

If only life were that easy.

Jan-07-14  Ray C: <Patriot> Or 37...Qc6. But that doesn't work either: 38. Qd6+ Ke8 39. Qe7#.

Move, capture, interpose. All three are available and none of them avail.

Jan-07-14  Patriot: <Ray C> You are absolutely right! Interposing is something I didn't even consider, which could be a big mistake in some positions (even though it loses in more than one way here). "Move, capture, interpose"--I will have to be more careful about seeing all the options in the future.
Jan-07-14
Premium Chessgames Member
  agb2002: White has a bishop for a rook.

The black queen prevents 37.Qd6+ Ke8 38.Qe7# due to 37... Qxd6. This suggests 37.Bb5+, to control the escape square c6 or to divert the black queen:

A) 37... Kc7 38.Qe7+ Bd7 39.Qxd7#.

B) 37... Qc6 38.Qe7#.

Jan-07-14  Cheapo by the Dozen: Looks like a mate in 3:

37 Bb5+ Qxb5
38 Qd6+ Ke8
39 Qe7++
or

37 ... Kc7
38 Qe7+ Bd7
39 Qxd7++

Jan-07-14  M.Hassan: "White to move 37.?
White has a Bishop for a Rook

Moving black Queen from the 6th rank will make life easy for White:

37.Bb5+
<if...Qc6 38.Qe7#>
<if...Qxb5 38.Qd6+ Ke8 39.Qe7#>

37.........Kc7
38.Qe7+ Bd7
39.Qxd7#

Jan-07-14  Cybe: After 34. R:f7! White HAS NOT mate in six: 34. R:f7!, 34… Qb1+, 35. B:b1, 35… R:b1+, 36 Kg2 (Kh2), 36… K:f7, 37. Qf4+, 37… Kg8, 38. Q:f8+, 38… Kh7 etc. Black of course loses, but few moves later.
Jan-07-14
Premium Chessgames Member
  whiteshark: Toughest Tuesday puzzle in 2014 so far.
Jan-07-14  eblunt: < Ray C: <Patriot> Or 37...Qc6. But that doesn't work either: 38. Qd6+ Ke8 39. Qe7#.>

Or even 37 .. ♕c6 38 ♕e7# why wait !

Jan-07-14  FSR: White wins beautifully with 37.Bb5+! Qxb5 (37...Kc7 38.Qe7+ Bd7 39.Qxd7 is a nice Guéridon mate - https://en.wikipedia.org/wiki/Check...) 38.Qd6+! Ke8 ("it's good to be back home again"?) 39.Qe7#.
Jan-07-14  zb2cr: 37. Bb5+ does it. If the Queen takes, Black gets mated by 38. Qd6+, Ke8; 39. Qe7#. If the King retreats to c7, 38. Qe7+, Bd7; 39. Qxd7# gives a variant on the swallow's-tail mating pattern.
Jan-07-14
Premium Chessgames Member
  Penguincw: Easier than yesterday, but the 37...Kc7 variation is kinda hard to calculate.
Jan-07-14
Premium Chessgames Member
  morfishine: White forces the win with <37.Bb5+>

37...Qxb5 38.Qd6+ Ke8 39.Qe7#

(or 37...Kc7 38.Qe7+ Bd7 39.Qxd7#)

*****

Jan-07-14
Premium Chessgames Member
  gawain: White plays 37 Bb5+ and now it's mate in two regardless of whether Black captures the bishop. I am eager to see how Black got himself into this position.
Jan-07-14  landogriffin: Something I find quite interesting happened to me (not for the first time) whilst looking at this puzzle: the first move that 'popped into my head' as I looked at the position was Bb5+, it was seemingly subconscious. Then my conscious took over and put Bb5+ to one side in order to start analyzing Qe7+; after realizing this came to a dead end I started looking for new moves and reluctantly 'gave in' to the Bb5+ idea, which I soon found wins right away! I wonder if anybody else has had similar experiences and whether you have anything to add as to what the cause of it might be, whether it is a particular sympton of a more general case etc. Any takers?
Jan-07-14  M.Hassan: <gawain:I am eager to see how Black got himself into this position.>

32...Be8 instead of ...Bc8 could have prevented it I think. Don't you think so?

Jan-07-14  WoodPushkin: Greetings

Pull the White Q to the fifth rank to make available d6.

The move 22...h6?? was the losing move. The Black ♘ is needed to break up Whites plans of advancing a queen side pawn.

While Whites 22.g3 is the quiet move of GM's Black needed a louder response. As all the other pieces were busy the knight who had been turned into a loafer by g3 had to re-position himself.

27. h4? gives back most of the winning advantage. A continued press on the queen side such as ♖a7 or ♕b4 increase the pressure.

Moves 22 through 31 are a positional quagmire as both GM's go back and forth giving each other and throwing away the advantage! The study of these moves for correct play is critical to growth and understanding. The next-to-last mistake indeed Master Savielly Tartakower.

33...Qxb6 is the final mistook and Naiditsch recognizes a simple mate or loss of Blacks queen.

34.? White to play is another great Tuesday/Wednesday perhaps Thursday puzzle.

Analysis, Calculation, Elucidation: Study!

JAH Love

Jan-07-14  sambo: Does 33…Nd7 save black?
Jan-07-14
Premium Chessgames Member
  gawain: <M Hassan: 32...Be8 instead of ...Bc8 could have prevented it I think. Don't you think so?>

Yes indeed. 32... Bc8 does look like a terrible move. It must have seemed like fun to chase the White R from a6, but that accomplished nothing except to "force" the R to a7 (where it wanted to be! readying for the stroke Rxf7. Black simply had no idea how much danger he was in.

Jan-07-14
Premium Chessgames Member
  AvidChessMan: Why not 17.Qh4 instead of 17.Rfc1? which threatens mate at h7 and the undefended e7 knight.
Jan-07-14  haydn20: 17. Qh4 lets Black get in 17...Ng3, solving most of his problems. 17. Rfc1 pushes the Q off an important diagonal, releasing the DSB from Pawn-guarding duty. White could now play 18. Bxh7 Kxh7 19. Qh4+ and Qxe7 with a plus, but 18. a4 to prevent ...Bb5 is not bad either.
Jan-07-14  BOSTER: My Q. is . Should the strong GM playing black when almost all his pieces on the back rank , and the communication between east and west is interrupted , see the move 34. Rxf7 and play 33..Qxb6, or this symbolize the resignaton?
Jan-07-14  BOSTER: <notyetagm 34. White has a forced mate in 6 !! >. Not after 34...Qd8.
Jan-07-14  M.Hassan: <gawain:Yes indeed. 32... Bc8 does look like a terrible move. It must have seemed like fun to chase the White R from a6, but that accomplished nothing except to "force" the R to a7 (where it wanted to be! readying for the stroke Rxf7. Black simply had no idea how much danger he was in.>

HOW NICELY EXPLAINED.

Jan-09-14
Premium Chessgames Member
  kevin86: I see an epaulette mate in white's future.
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