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Bartosz Socko vs Alexey Shirov
European Team Championship (2007), Heraklion GRE, rd 7, Nov-04
Sicilian Defense: Najdorf Variation. English Attack (B90)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-06-07  sanyas: This game is truly bizarre.
Mar-04-17  RandomVisitor: white has an exposed king - black can try 20...Kh8 and later try Qg5+ hoping for a perpetual check.
Mar-04-17  RKnight: Wow. In order to justify 19 Rxf7, you have to foresee the strange-looking 25. Ne7, otherwise the sac doesn't seem to win. Needless to say, I didn't even consider 25. Ne7 when at move 19.
Mar-04-17  Cybe: The game seems to be drawish: 19. R:f7, 19… R:f7, 20. B:f7+, 20… Kh8!
Mar-04-17  Mrs Butterworth: I saw 19. Rxf7!, Rxf7 20. Bxf7+, Kxf7 21. Qd5+ with a winning attack. But what if Black doesn't take the bishop?

On 20. ...Kh8, the picture isn't so clear.

Mar-04-17  Sacrificed pawn: Really difficult potd.
Mar-04-17  dfcx: Stockfish found a draw with

19.Rxf7 (white's best move) Rxf7
20.Bxf7+ Kh8!
21.Nxb5 Nxe5
22.Qxd6 Qg5+
23.Kh1 Qxe3 2
4.Qxe5 Qf3+


click for larger view

Mar-04-17  Moszkowski012273: 17...Nf3 is incredibly strong.
Mar-04-17  morfishine: <19.Rxf7> seems the most forcing but as pointed out, Black could've held without too much extra effort; perhaps he panicked

*****

Mar-04-17  RandomVisitor: After 19.Rxf7


click for larger view

Komodo-10.1-64bit:

<0.00/37 19...Rxf7 20.Bxf7+ Kh8 21.Nxb5 Nxe5 22.Qxd6 Qg5+ 23.Kh1 Qxe3 24.Qxe5 Qf3+> 25.Kg1 Qe3+ 26.Kf1 Qf3+ 27.Ke1 Qe3+ 28.Kd1 axb5 29.Bd5 Rf8 30.Bf7 Rd8+ 31.Bd5 h6 32.h4 Rf8 33.Bf7 Rd8+ 34.Bd5

+0.16/37 19...Qg5+ 20.Kh1 Kh8 21.Nxb5 Rxf7 22.Bxf7 Nxe5 23.Qe2 Nxf7 24.Rf1 axb5 25.Rxf7 Qe5 26.Qd3 h6 27.Qd4 Qg5 28.Qxd6 Qxe3 29.Qd3 Qc1+ 30.Rf1 Qg5 31.Qg3 Qe7 32.Qf4 Rxc2 33.Qf8+ Qxf8 34.Rxf8+ Kh7 35.Rf7 Ra2 36.Rxb7 Rxa3 37.Rxb5 Re3 38.Re5 Kg6 39.Kg2 Re2+ 40.Kf3 Rxh2 41.Rf5 Rb2 42.b5 Rb3+ 43.Kf4 h5 44.Rd5 h4 45.Rc5

Mar-04-17  saturn2: Null points. I looked at 19 Rxf7 but was discouraged by the answer Nxe5. Now the queen is attacked and also R(N)xNc3 is looming. Maybe there is 20 Qd5...I dont know.
Mar-04-17  beenthere240: 20...Kh8 essentially concedes the game. Black is at least one pawn down with a hopeless position.
Mar-04-17  The Kings Domain: Got this one. One can say white did a Shirov on Shirov. Nice game.
Mar-04-17  Carlos0012358: Two Black fatal errors:

A) 20.....KxB exposes the black King and forces an escape down the h file. Protecting the King with 20.....Kh8 would have been best.

B) Then, having committed error A), black destroys himself with 23.....dxe5, failing to run to rescue the isolated black King. A better move would have been Rxc2+, attacking the white King who must move to h1 allowing the black Queen to come to the King's recue with Qh3.

In any case, after error A) black is doomed.

Mar-04-17  YouRang: Saturday 19.?


click for larger view

I see that white has a powerful pawn battery aimed up the e-file (also known as "YouRang's Gun"). Additionally white exerts a lot of pressure on Pf7.

On the other hand, black is up a R for 2P, white's Nc3 is in danger, and the white K is exposed (to ...Qg5+ for example).

It seems white should either do something about the Nc3 (e.g. 19.Nxb5) or attack the king. Given that this is a puzzle involving Pf7, I'm betting on <19.Rxf7>


click for larger view

Black can't take my Nc3 because of the threat of Rxd7+. One may expect <19...Rf7> creating a pinned rook situation (although 19...Qg5+ may be a complicated alternative).

This leaves white with the same choice: save Nc3 or attack the K, so let's keep up the attack: <20.Bxf7+> (I considered 20.e6, but 20...Rxc3 21.exf7+ Kf8 leaves black with all the attack) <20.Kxf7> (which is expected, but may be an unwise king exposure) <21.Qd5+ Ke7>


click for larger view

Now what? I considered 22.exd6+ but then 22...Nxd6 and pfft.

Without a way to give check, it seems white must finally save the Nc3 with <22.Nxb5>


click for larger view

This makes exd6+ a potent threat (e.g. 22...axb5? 23.exd6+ Ke8 24.Qe6+ Kf8 25.Rf1+ Nf6 26.e5 ).

However, black can stop that with 22...Nxe5, or go on the attack with 22...Rxc2+.

At this point, it's too complicated for me to see how white makes progress, although white seems to have the initiative at the moment, and of course, that powerful pawn battery...

Mar-04-17  YouRang: I see that in the game, black opted for <21...Kg6> (instead of 21...Ke7) which surprised me a bit.

General rule (which applies to life as well as chess):

<Don't go running naked outside unless you've carefully ascertained that panicking is the best course of action.>

After the black K runs outside naked, then <22.Qe6+> locks the door on him and forces him to run into the street.

It's just a matter of time before he will realize that he is in an embarrassing situation.

Mar-04-17  RandomVisitor: Does white have a better move than 19.Rxf7? apparently not:


click for larger view

Komodo-10.1-64bit:

0.00/41 19.Rxf7 Rxf7 20.Bxf7+ <Kh8> 21.Nxb5 Nxe5 22.Qxd6 Qg5+ 23.Kh1 Qxe3 24.Qxe5 Qf3+ 25.Kg1 Qe3+ 26.Kf1 Qf3+ 27.Ke1 Qe3+ 28.Kd1 axb5 29.Bd5 Rf8 30.Bf7 Rd8+ 31.Bd5 Rf8

-0.63/41 19.Nxb5 Nxe5 20.Qd2 axb5 21.Bb3 Rc6 22.Kh1 Ra6 23.Rf4 g6 24.Qd5 Qd7 25.Raf1 Qc6 26.Qd4 Rxa3 27.Rf6 Ra6 28.Kg2 Nc4 29.Bxc4 Qxc4 30.Qxc4 bxc4 31.b5 Ra2 32.R1f2 Rb2 33.b6 Rxb6 34.e5 Rd8 35.Rxf7 dxe5 36.Rc7 Rb1 37.Rxc4 Re1 38.Rc7 b5 39.Rff7 Rd2+ 40.Rf2 Ree2 41.Rxe2 Rxe2+ 42.Kf3 Rxh2 43.Ke4 Re2 44.Rb7 h5 45.Rxb5 Kf7

Mar-04-17
Premium Chessgames Member
  agb2002: White has a bishop and a pawn for a knight.

Black threatens N(R)xc3, d(N)xe5, Qg5+ followed by Qxe5.

White has Rxf7 and Nxb5.

In the case of 19.Nxb5 Nxe5 20.Qxd6 Qg5+ 21.Kh1 Rxc2 22.Rg1 Ng4 doesn't look good for White.

In the case of 19.Rxf7:

A) 19... Rxf7 20.Bxf7+

A.1) 20... Kxf7 21.Qd5+ followed by Nxb5, exd6 and Rf1 seems to provide enough compensation for the piece.

A.2) 20... Kf8 21.Nxb5 Nxe5 22.Qxd6+ Qxd6 23.Nxd6 Rxc2 24.Kg3 and White seems to emerge at least one pawn ahead.

B) 19... Rxc3 20.Rxd7+ Kh8 21.Rxd8 Rxd8 (21... Rxd3 22.Rxf8#) 22.Qd2 + - [Q+2P vs R].

C) 19... Nxe5 20.Rd7+ Kh8 21.Rxd8 Nxd3 22.Rxf8+ Rxf8 23.Nxb5 axb5 24.cxd3 wins a piece.

I can't do more today.

Mar-04-17  Marmot PFL: Ugly tripled pawns but they control a lot of squares. Lines with e6 (after Nxb5) don't seem to work as black just takes and plays Kh8. So R or Bxf7, trade and Qd5+, if Ke7 Nxb5 Rxc2+ Kh1 ab5 ed6+ looks good.

Qd5+ Kg6 Qe6+ now maybe black has to give back the piece with Nf6 (although it looks lost) as Kh5 Nd5 threatening Nf4+ looks dangerous, although I don't see a forced mate.

Mar-04-17  mel gibson: I couldn't get this one.
The computer - DR4 64 bit says it's a draw.
Notice the King doesn't take that bishop & moves back into the corner!

19. Rxf7 (19. Rxf7
(♖f1xf7 ♖f8xf7 ♗a2xf7+ ♔g8-h8 ♘c3xb5 ♘d7xe5 ♕d3xd6 ♕d8-g5+ ♔g2-h1 ♕g5xe3 ♕d6xe5 ♕e3-f3+ ♔h1-g1 ♕f3-e3+ ♔g1-f1 ♕e3-f3+ ♔f1-e1 ♕f3-e3+ ♔e1-d1 a6xb5 ♗f7-b3 ♖c8-d8+ ♗b3-d5 ♖d8-f8 ♗d5-f7 ♖f8-c8 ♗f7-b3 ♖c8-d8+ ♗b3-d5 ♖d8-f8 ♗d5-f7) 0.00/19 77)

score 0.00 depth 19

Mar-04-17  morfishine: Poor position for a puzzle

*****

Mar-04-17  RandomVisitor: Consider the following, from Anticipating Surprise (Grabo, 2004):

p.120 "The ultimate goal of stratagem is to make the enemy quite certain, very decisive and wrong." ...the best stratagem is the one that generates a set of warning signals susceptible to alternative, or better yet, optional interpretations, where the intended solution is implausible in terms of the victim's prior experience and knowledge while the false solution (or solutions) is plausible.

Consider black to move:


click for larger view

20...Kxf7 looks safe because it does not seem like white can mobilize forces to attack the black king faster than black can to defend it. Looks like white had a good strategy.

Mar-04-17
Premium Chessgames Member
  transpose: My candidates were Bxf7, Rxf7, e6, Nxb5, and Nd5. I spent most of my time on the most forcing 19 Rxf7 as it seemed most promising. I thought white's best would be 19 Rxf7 Rxf7 20 Bxf7+ Kxf7 (i actually thought white would be better if black went to Kh8) 21 Qd5+ but then figured wherever the King went, 22 Nxb5 and white is for preference. I did not foresee 22 Qe6+ but I think in a game I would have considered it at that moment. I don't give myself full credit at all, and anyone who could foresee 24 Ne7 is a much better chess player than me.
Mar-04-17  Tiggler: Helpmate by Shirov: four inferior moves in a row after 20. Bxf7
Mar-16-17
Premium Chessgames Member
  thegoodanarchist: GOTD Pun:

Socko Puppet

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