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Ivan Sokolov vs Tom Middelburg
Dutch Club Championship (2009), ?, rd 7, Mar-28
Slav Defense: Czech Variation. Bled Attack (D17)  ·  1-0

8
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White to move.
ANALYSIS [x]
1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
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Kibitzer's Corner
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Apr-21-09  stacase: 32 Qxh5+ was an obvious "Puzzle" move but it took me a while to see how it would go if Black declined to capture White's Queen i.e., 32 ... Kg8. It would finally wind up as a mate with White's Queen on h8, Black's King on f8 with escape squares e7 and g7 covered by White's Knight and f7 blocked by Black's Pawn.
Apr-21-09  Crowaholic: Took my sweet time noticing the bishop pin…

<Doesn't this one work as well ?? 32. Rxg6 xg6 33. Rxg6 Nxg6 34. Qxh5++>

Only if you're looking for helpmates. 33. ..Kxg6

Apr-21-09  zb2cr: Found this quickly, perhaps 15 seconds. With Black's Rook standing on h8, and with White's Rook on the g-file, this pattern becomes the equivalent of an <Arabian mate>. Therefore, we have to look for a method of allowing the Rook on c6 to enter.

32. Qxh5+ does the job. 32. ... gxh5 opens up the pseudo-<Arabian mate> I referred to before. But 32. ... Kg8 puts the King in position for the White Bishop at a2 to act with a pin. Therefore: 33. Rxg6+, Nxg6; 34. Qxg6+, Kf8; 35. Qg7+, Ke8; 36. Qxh8#.

Looks like I found a slightly longer-winded way of forcing mate in the alternative line, but the very useful White Knight blocks e67 as a flight square, and the Black Queen blocks d7.

Apr-21-09  Dr. J: <scarfac3: Doesn't this one work as well ?? 32. Rxg6 xg6 33. Rxg6 Nxg6 34. Qxh5++>

Right elements, wrong order:
32 Rgxg6 ? fxg6? (...Qxf5 wins)
33 Rxg6? .......... (Qxh5 mates next)
33 ......... Nxg6? (...Qxf5 or ...Kxg6 wins. Better yet: ...Rc8+)

34 Qh5#

Apr-21-09  ahmadov: It was easy for me as well...
Apr-21-09  ahmadov: <Qxh5+ Kg8 (not gxh5 since Rh6#) Rcxg6+ Nxg6 (not fxg6 since the Bishop on a2 pins the pawn) Rxg6+ Kf8 Qxh8#> This would be a more decent continuation for Black...
Apr-21-09  gtgloner: 32. Qxh5+ looks like it has interesting possibilities, let's see.
Apr-21-09  Stormbringer: Forgot to mention in pursuit of 32 ... Kg8 I also spent a lot of time looking at 33 Nh6+ or 33 Bxf7+ Qxf7 34 Nf6+ (for the royal fork (which I couldn't make stick)) or 33 Qxh8+ in order to 'lift' the rook over to the h column with check.
Apr-21-09  johnlspouge: Tuesday (Easy):

I Sokolov vs T Middelburg, 2009 (32.?)

White to play and win.

Material: B for N. The Black Kh7 has 1 legal move, to g8 on the file of the White Rg1. The White Rg1 and Rc6 both attack Pg6, while Qe2 attacks Ph4. The White Nf5 is in position to support Rs at h6 or g7, while Ba2 attacks Pf7. I hear Robin Williams singing “Another Arabian Night”…

Candidates (32.): Qxh5+

32.Qxh5+ Kg8 [gxh5 33.Rh6# or 33.Rg7# - variant of Arabian mate]

33.Rcxg6+ [or Rgxg6+] Nxg6 34.Rxg6#

The White Ba2 pins Pf7 to Kg8.

Apr-21-09  johnlspouge: I forgot the Nf8 vacated the flight square for Kg8, so

34.Rxg6+ Kf8 Qxh8

is required to finish the job.

Apr-21-09  TheTamale: Ugh. I got the answer immediately, but my mental analysis of 32) ...Kg8 was not 100% accurate. Karpov says he had the ability to play blindfold since he learned to play at age 4. I am 46.
Apr-21-09  kmzr: 20 sec
Apr-21-09  Patriot: Rewind to move 31, white to play. This is why I love this game so much. Black would love to play 31...Qxd2+ 32.Kxd2 gxf5. But white sees that 31.Qe2! gxf5 32.Qxh5#. And he also must have seen what happens on 31...Qd7 (a fork on rook and knight!), which most players would fear and possibly even reject 31.Qe2 altogether. But even if you don't see the entire combination, the simple 32.Rf6 looks playable since 32...gxf5 33.Qxh5 is mate! Or 32...Qxf5 33.Rxf5 , since 33...gxf5 is still not possible due to 34.Qxh5#. 32...Rc8+ is another critical line that must be examined as well.

Now for the puzzle move. 32.Qxh5+. Brutal and forceful. 32...gxh5 33.Rg7#/Rh6# as in the main line. But after 32...Kg8 33.Rxg6+ Nxg6 34.Rxg6+ Kf8 35.Qxh8#; or 32...Kg8 33.Rxg6+ Nxg6 34.Qxg6+ Kf8 35.Qg7+ Ke8 36.Qxh8#.

Apr-21-09  pankajdaga: 2/2 for me this week.
Apr-21-09  fyad reject: i took about ten minutes to finally solve this and found it quite challenging, but congratulations to all the people who found it easy i guess
Apr-21-09  JG27Pyth: Full credit+ today. Got the easy line (sac accepted) and the harder Kg8 sac declined line... in full, and quickly. Yay... plus bonus points for solving despite agitated mental state from arguing with wife about nonsense just prior to solving.

I think my performance rating was at least 150% of my real rating, today :)

Apr-21-09  Kasputin: 32. Qxh5+

If 32 ...gxh5 then 33. Rg7# so instead black is forced to play:

32 ...Kg8
33. R(g)xg6+ Nxg6
34. Rxg6+ Kf8
35. Qxh8#

It doesn't matter which rook moves on white's 33rd move, but since I calculated first with the g-rook, I used that move.

Apr-21-09  Milesdei: BOO-ya! Both lines, less than two minutes. I'm back baby!
Apr-21-09  MiCrooks: I like that fact that after gxh5 White has his choice of Rg7++ and Rh6++ as in the game. Seems odd that Black just caved like that and didn't at least make him prove it by Kg8. Not that the finish is hard to find, but mate in one? Or just resign. You would think this game was from the early 1900s when opponents would play out to mate to allow someone to finish the combination.
Apr-21-09  kevin86: I especially like the twin Arabian mates at h6 and g7.
Apr-21-09  patzer2: Sokolov's 32. Qxh5+ initiates a quick mate to solve today's Tuesday puzzle. It's fairly easy to win here. But how does one get such great attacking positions?

One place to look is Sokolov's early 12. g4!? (novel?) opening gambit which sacrifices a pawn to open the g and h files for the coming attack on the Black King.

This is the first and only time 12. g4!? appears
in our chessgames.com Opening Explorer, which indicates previously played here were 12. Bd2 as in Carlsen vs Z Andriasian, 2003 and 12. 0-0 as in A Bykhovsky vs D Zoler, 2001, C Lutz vs Hertneck, 1994, and Kashdan vs E M Jackson, 1931.

Apr-21-09  notyetagm: <Lambda: White's position is so overwhelming, the combination works even if you remove the dangerous Rc6 from the board.>

Just like Weteschnik said, <ACTIVE PIECE PLACEMENT GIVES BIRTH TO TACTICS>.

Here Sokolov has an *overwhelmingly* active positiob. There just MUST be a combination which wins something.

I remember correctly solving this puzzle when it first appeared in Chess Today about a month ago.

Apr-21-09  notyetagm: <patzer2: Sokolov's 32. Qxh5+ initiates a quick mate to solve today's Tuesday puzzle. It's fairly easy to win here. <<<But how does one get such great attacking positions?>>>>

Yes, that is where the true chess skill lies, creating the winning positions in the first place.

Just like Spielmann said about Alekhine, <"I can see the combinations as well as Alekhine, I just cannot get his positions.">

Apr-21-09  patzer2: Black's 17th, 18th and 19th moves look ripe for improvement.

Here's a few ideas:

<17...b5?!>

Better is 17... c5 18. dxc5 Qa5 19. Kb1 Qxc5 20. Bb3 Nc6 =.

<18...c5?>

An improvement is 18... bxa4 19. Nxa4 Bxd2+ 20. Qxd2 =.

<19...Rh8?> This loses quickly to the game continuation or the simple 20. dxc5 .

Putting up more resistance is 19... cxd4 20. e5 Ng8 21. Nxb5 Qc8+ 22. Kb1 Qf5+ 23. Ka1 Bxd2 24. Qxd2 Qxe5 25. f4 Qe3 26. Bd5 Qxd2 27. Rxd2 Na6 28. Bxa8 Rxa8 29. Rxd4 with perhaps some hope of holding the draw.

Apr-21-09  YouRang: 32.Qxh5+ was easy to spot due to the nice Arabian-style mate awaiting black if 32...gxh5 (either 33.Rh6# or 33.Rg7#).

So, black's only choice is 32...Kg8, which had me furrowing my brow for a moment, but then I noticed that my LSB hiding on a2 made it easy: 33.Rgxg6+ Nxg6 34.Rxg6+ Kf8 35.Qxh8#.

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