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Sergey Karjakin vs Loek van Wely
Tata Steel Group A (2013), Wijk aan Zee NED, rd 13, Jan-27
Sicilian Defense: Dragon Variation. Yugoslav Attack Modern Line (B76)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Given 23 times; par: 20 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-04-14
Premium Chessgames Member
  gofer: <24 Bxf7+ ...>

24 ... Kxf7
25 Qh7+

24 ... Qxf7
25 Qxd8+

24 ... Kf8
25 Qh8+ Ke7
26 Rxe5+ Be6 (Ne6 27 Rxe6+ Bxe6 28 Qh4+ )
27 Qh4+

<24 ... Kg7>

After this it is far from clear to me to the best solution.


click for larger view

I think I like the idea of deflecting Nf4 to Nh5

25 g5! Nh5
26 Be6! Ba6
27 Bc4! Bc8
28 Rhf1 Qd6
29 Rf7+ Kh8
30 Ne4 ...

Lots of permutations...

~~~

Hmmm, I only got it half right on a Tuesday!! Ne4 is pretty horrible to defend, but I think black gave up too easily. 25 Ne4 Qd7 provides a sort of defense for at least a few moves.

Feb-04-14
Premium Chessgames Member
  agb2002: The text 25.Ne4 seems to be significantly better than my 25.Rhf1.

Houdini 2.0 x64 evaluates 25.Ne4 at about +3.6 and 25.Rhf1 at about +2.8, enough to win in any case.

Feb-04-14  Lambda: You don't really need to see 25. Ne4 to solve the puzzle. Even without that, white has just won an important pawn for no compensation, perfectly good reason for calling 24. Bxf7 the best move.
Feb-04-14  zb2cr: Missed this one, not paying enough attention.
Feb-04-14  eblunt: <Lambda: You don't really need to see 25. Ne4 to solve the puzzle.>

Well I'll go with that ! I had ♗xf7 then g5 as per <gofer> which I think is a pretty strong continuation

Feb-04-14
Premium Chessgames Member
  patzer2: <al wazir: I got it, but finding 25. Ne4 wasn't "easy" for *me*.> I found 24. Bxf7+ easy enough, but was also unsure how to reply to 24...Kg7.

After 24...Kg7, it's a bit complicated. Fritz 12 has 25. Rhf1, 25. Ne4 and 25. Bc4 as three winning options.

<agb2002> ...<D) 24... Kg7 25.Rhf1 looks winning (extra pawn and the menace 26.Rxf4 exf4 27.Re7).>

One interesting line here is 25. Rhf1! Rf8 (diagram below)


click for larger view

26. Rxf4! exf4 (26...Rxf7 27. Re4 ) 27. Be8! (diagram below)


click for larger view

With White's threat of 28. Re7+ , Black is busted (+10.84 @ 22 depth per Fritz 12).

Feb-04-14
Premium Chessgames Member
  Penguincw: The consequences of trying too hard (24.Rxe5 Qxe5 25.Qxd8+ Kg7 26.Ne6+...).
Feb-04-14  M.Hassan: I could not see why 25.Ne4 is resignable. Chessmaster shows that White falls ahead by 3 pawns after 6 moves:

25.Ne4 Nd5
26.Bxd5 cxd5
27.Qf6+ Kg8
28.Qxg6+ Qg7
29.Nf6+ Kf8
30.Qxg7+ Kxg7
31.Nh5+ Kh6
32.Rxe5


click for larger view

Feb-04-14
Premium Chessgames Member
  kevin86: missed this one 0/2 this weak-lol

Bxf7+ is more dangerous than it looks.

Feb-04-14  Nick46: <kevin86: missed this one 0/2 this weak-lol Bxf7+ is more dangerous than it looks.
>
The scale of difficulty seems to have gone up a notch recently.
Feb-04-14
Premium Chessgames Member
  TheTamale: <Nick45: The scale of difficulty seems to have gone up a notch recently.>

Yes! For a Tuesday puzzle I was looking for something a wee bit easier and a whole lot more forcing.

Feb-04-14  WoodPushkin: Greetings:

Easy?!?
I looked at this for seven minutes before I found <24.Bxf7+>.

Did super GM van Wely see this coming?

Also <25.Ne4!> followup control of d8-h4 diagonal to ultimately reach g5 is not obvious.

Yes this is a good puzzle and the study of the moves to actually win this game will improve play and accuracy. I doubt many players would resign only being two pawns down. However, easy..? No

Analysis, Calculation, Execution: Study!

YES Love

Feb-04-14
Premium Chessgames Member
  sfm: <chrisowen: I lade for one to rest cedes in fly duffed free, dead in the water...> Terrific!
Feb-04-14
Premium Chessgames Member
  al wazir: <morfishine: after 25...Rd6 26.Ng5 Black doesn't have 26...Rh8>. You're right. I resign.
Feb-04-14  Patriot: Material is even.

This was not so clear to me. 24.Bxf7+ Kxf7 25.Qh7+ wins but 24...Kg7 leaves the bishop hanging, plus 25...Ng2 with a fork is threatened. I would feel much safer playing 24.Rxe5, since I'm not seeing anything else.

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

25.Ne4 - the move I missed. That's not an easy move to find, in my opinion.

Feb-04-14  BOSTER: <M.Hassan: why 25.Ne4 is resignable>. If after 6 moves ahead your opponent 3 pawns up, this is enough to resign.
Feb-04-14
Premium Chessgames Member
  FSR: 24.Bxf7+ Kg7 (best) 25.Ne4 looks pretty crunchericious.
Feb-04-14  morfishine: <Patriot> Yes, <25.Ne4> is not easy to find, especially for a Tuesday! At least for me, it was a process of elimination going on the supposition that 24.Bxf7+ was the first move (what else given its a problem?)
Feb-04-14  Patriot: <morf> Honestly I didn't even notice white's bishop hanging! I tried to work on it quickly this morning before work, and once I missed the threat I never looked for it again!
Feb-04-14  morfishine: <Patriot> Here its not so much noticing the Bishop was hanging but the Black Queen is hanging! So just when we get it all figured out, oops Black has 24...Kg7 declining, but White gets the last laugh with 25.Ne4

More Wednesday-ish

*****

Feb-04-14  MountainMatt: The only part of this I saw clearly was Bxf7+. Oh well.
Feb-04-14  morfishine: <Patriot> BTW: A cool line I found, and no doubt you would OTB is: 24.Bxf7 Kg7 25.Ne4 Rd6 26.Ng5 Ba6 27.Qh7+ Kf6 28.h4 Bd3 29.Rxe5 Kxe5 30.Qg7+ Rf6 31.Re1+ Kd4 32.Qxf6+ Kc5 33.Re5+ Nd5 34.Ne6+
Feb-04-14  Steve.Patzer: I was musing that after 24. Bxf7 Kf8 is tough to beat.
Feb-04-14  BOSTER: " Jazz Age" revisited, 100 years ago.
Bernstein vs Capablanca.


click for larger view

Black to play.

Feb-04-14  M.Hassan: <BOSTER>:
That's right
In fact I brought the calculations to show the reason for resignation
search thread:   
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