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Vladimir Mikhailovich Liberzon vs Ivan Radulov
Debrecen (1969)
Spanish Game: Morphy Defense. Archangelsk Variation (C78)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Given 19 times; par: 20 [what's this?]

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Kibitzer's Corner
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Mar-16-12  dragon player: Today's position looks complicated. Black's king is unsafe, but white has two pieces hanging. So far, I
don't see any move which could be the solution. Wait, a see something:

19. Nh7+ Nxh7

What else?

20. Qh5 Qd7

The only alternative is Re7, but I'm not really impressed by that move.

21. Qxh6+ Kg8
22. Re3

I'm not so sure about this move, but I don't really see a good defence against Rg3+.
Time to check.

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

Right idea, but Re3 was not played. Let's see what Rybka thinks: It loses, 22... Qg4 is the refutation. Second day on a row I miss the final move.

3/5 now. Not good.

Mar-16-12  Memethecat: <viking78> At chesstempo go to preferences & put the standard on easy, don't worry about your score for now. Really its just about recognizing patterns & the more you do the better you will become, even if you get many wrong, after time you will be able to see 3 & 4 move combinations almost instantly.
Mar-16-12  viking78: thanks, I'll do that
Mar-16-12  Memethecat: & I don't know a better, more enjoyable way to improve your game. We are very lucky to live in this era of technology that makes learning chess much easier, with engines, tools & 150,000 of the best games ever played at our finger tips. Praise be upon Caissa
Mar-16-12
Premium Chessgames Member
  agb2002: White is a pawn ahead.

Black threatens 19... Nxb5 and 19... hxg5 (19... Nxe4 20.Nh7+).

The first idea that comes to mind is 19.Qc4 but after 19... d5 (19... Bd5 20.Nh7+ Kg7 21.Bxf6+ Qxf6 22.Qxd5 Kxh7 23.Qxf7+ Qxf7 24.Bxf7 Rf8 25.Bh5 Nc6 26.Bf3 Ne5 27.Nd2 + - [2P]) 20.Qb4+ c5 21.Nh7+ Nxh7 - +.

Another option is 19.Nh7+:

A) 19... Nxh7 20.Qh5

A.1) 20... Qd7 21.Qxh6+ Kg8 22.Qg6+ Kh8 (22... Kf8 23.Qxh7 f5(6) (23... Nxb3 24.Qh8#) 24.Qxd7 + -) 23.Bxf7 with the double threat 24.Bf6+ Nxf6 25.Qxf6+ Kh7 26.Qg6+ Kh8 27.Qh7# and 24.Bxe8, three pawns for the knight and attack.

A.2) 20... Re7 21.Qxh6+

A.2.a) 21... Ke8 22.Ba4+ c6 (22... Bc6 23.Bxc6+ doesn't seem to change anything) 23.Qxh7 followed by Bxe7 + -.

A.2.b) 21... Kg6 22.Qg6+ Kh8 (22... Kf8 23.Qxh7 + -) 23.Bxf7 looks similar to A.1.

A.3) 20... Ng5 21.Bxg5 + -.

B) 19... Ke7 20.Bxf6#.

C) 19... Kg7 20.Bxf6+

C.1) 20... Kxh7 21.Bxd4 Bxd4 22.Qf5+ Kh8 23.Bxf7 and Black doesn't seem to have enough compensation for the pawns.

C.2) 20... Qxf6 21.Nxf6 Nxb5 22.Nxe8 + -.

C.3) 20... Kg8 21.Bxd8 Nxb5 22.Nf6+ Kf8 23.Nxe8 + -.

C.4) 20... Kg6 21.Bxd4 Bxd4 22.Qf5+ Kg7 23.Qxf7+ Kh8 24.e5 followed by Nf6 winning.

D) 19... Kg8 20.Nxf6+

D.1) 20... Kf(h)8 21.Qxe8+, etc.

D.2) 20... Kg7 21.Nxe8+, etc.

D.3) 20... Qxf6 21.Qxe8+, etc.

Mar-16-12  jhelix70: agb2002:

I like your line C.1 as best for black.

19.Nh7+ Kg7 (best) 20.Bxf6+

After 20... Kxh7 21.Bxd4 Bxd4 22.Qf5+ Kh8 23.Bxf7 Rf8 and black is worse, but there is still a lot of chess to play.

this is one of those combinations that was hard for me b/c of this line...I couldn't figure out a slam dunk win for white

Mar-16-12
Premium Chessgames Member
  agb2002: <jhelix70:> I considered 20.Qd3 but didn't notice that it was also protecting the knight because of e5+.

Houdini doesn't like 23.Bxf7 in that line and prefers 23.Nc3 with some edge for White. A very interesting puzzle.

Mar-16-12  James D Flynn: 19.Nh7+ Nxh7 20.Qh5 there are 2 defenses
A 20….Qd7 21.Qxh6+ Kg8 22.Qg6+ Kh8 23.Bxf7 Rf8(or any along the back rank) 24.Bf6+ Nxf6 25.Qxf6+ Kh7 25.Qg6+ Kh8 Qh6# B 20…Re7 21.Qh6+ Kg8 22.Qg6+ Kh8 23.Bxf7 White threatens 24.Bxe7 Qxe7 Qg8# and Black has no answer except to keep the Q on the bank rank and lose the R. Now for the game.
Mar-16-12  BOSTER: In such position (see diagram) white to play move 17 every player, who respect himself and his pieces ,should play Nc3. Who exchanges d pawn for b pawn?


click for larger view

<Patriot> <The site does not seem to be helping improve any more>.

It means you resigned. I guess <CG> can not afford this.

Mar-16-12  srag: <LoveThatJoker> and <patriot>: would you please compare chesstempo and chess.emrald? I visit both of them and I think chess.emrald values quickness too much. I am a very weak player and today I begun to solve problems at chess.emrald with a rating of 1056. I made a few mistakes (really few) and when I quit my rating was 947. Not very stimulating, I guess ...
Mar-16-12  Patriot: <agb2002> That was (again) some great analysis! I especially like the way you rounded off <A.2.a) 21... Ke8 22.Ba4+ c6 (22... Bc6 23.Bxc6+ doesn't seem to change anything) 23.Qxh7 followed by Bxe7 + -.> If only I thought of it that way!

At first I thought C.3 and C.4 were unnecessary but when pieces are hanging those candidates become critical.

Mar-16-12  LoveThatJoker: <srag> Chesstempo: Excellent tactics and endgames site. Some cool features in terms of being able to analyze with the engine of your choice (so long as it's on your hard drive) directly on the site.

chess.emrald.net: All about spotting the best/most efficient way to win at lightning speed. Excellent for pattern recognition and improving one's tactical ability in general. The time element is definitely the number one feature that makes the site so challenging. Keep at it, man...don't let the site beat you: You beat the site.

LTJ

Mar-16-12  Patriot: <BOSTER> I think you misunderstood me. I wasn't referring to <CG>.

<srag> I would sum up Chess Tempo and Chess Tactics Server (chess.emrald.net) this way: Chess Tempo allows you to develop a better thought process by allowing you to think longer, while CTS helps develop quick pattern recognition. So roughly it is developing analysis skills vs. developing pattern recognition.

But Chess Tempo is much more flexible (if you subscribe). You can adjust the rating strength of the puzzles, which makes it possible to develop pattern recognition if you choose very easy problems. It will also show you which tactical patterns you are weakest at, and so you can tell it to only show those themes.

CTS is completely free and mostly gives you problems that it expects you to solve in a few seconds. The problems it gives are based on your rating level. I thoroughly enjoy these, and they have helped me jump hundreds of rating points! Some of the problems are pretty tough though, which can be it's downfall. In order to get better it is more beneficial to practice the very easy tactics repeatedly until you instantly recognize them just like the multiplication tables. That's where I would recommend Chess Tempo.

Mar-16-12  Norbi506: 23. Bxf7 - Qf5!

:)

Mar-16-12  M.Hassan: "Difficult" White to play 19.?
White is a pawn up.
A check by the Knight opens the way for the Queen to go to safety while attacking Black Queen by Bishop:

19.Nh7+ Nxh7
20.Qh5 Re7
21.Qxh6+ Kg8
22.Re3 Nf5
<if 23.exf5 Rxe3 24.Bxd8 Re1#>

23.Qg6+ Ng7
24.Bxf7+ Rxf7
25.Bxd8 Bxe3
26.fxe3
White wins having the Queen and stronger materials.
Time to check

Mar-16-12  M.Hassan: Another line given by Chessmaster:

19.Nh7+ Kg7
20.Qd3 Kxh7
21.e5+ Kh8
22.Qd2 Kh7
23.Bxf6 Qd7
24.Bc2+ Nxc2
25.Qd3+ Be4
26.Qxe4+ Kg8
27.Qf4 Bxf2+
28.Kxf2 Kh7
29.Qe4+ Kg8
30.Qxc2


click for larger view

And White is way stronger than Black in this position.

Mar-16-12  SpoiltVictorianChild: I had 22. Re3. Didn't see ... Qg4! :(
Mar-16-12  srag: <LoveThatJoker> Thanks a lot!
Mar-16-12  LoveThatJoker: <srag> My pleasure, man. Swing by my forum sometime again. :)

LTJ

Mar-16-12  sevenseaman: We all aim to convey to others clearly what we think. (I am sure no one deliberately to obfuscates).

To facilitate easy perusal, I suggest all posters print their main argument in each of their lines in a distinguishing color.

To illustrate my point I had a lot of difficulty in reading <LTJ>'s (<agb2002> and some others as well) 19...Kg7 line below;

19...Kg7 20. Bxf6+ Kxh7 [20...Qxf6 21. Qxe8 (21. Nxf6 Nxb5 22. Nxe8+ Kg6 23. Bd5 c6 24. Bc4 and White wins excellently) 21...Kxh7 (21...Nf3+ 22. gxf3 Qxf3 23. Qf8+ Kxh7 - 23...Kg6? 24. Qg8+ Kh5 25. Bd1! Bxf2+ 26. Kf1 Bxe1+ 27. Bxf3 and White wins - 24. Qxf7+ and White wins) 22. Qxf7+ Qxf7 23. Bxf7 Nc2 24. Rc1 Bxe4 25. Nc3 is also winning for White] 21. Bxd4 Bxd4 22. Qf5+ Kh8 23. Bxf7 looks like Black's absolute best try limiting White to a 2 pawn advantage and a better position.

Had it been printed as;

<19...Kg7 20. Bxf6+ Kxh7> [20...Qxf6 21. Qxe8 (21. Nxf6 Nxb5 22. Nxe8+ Kg6 23. Bd5 c6 24. Bc4 and White wins excellently) 21...Kxh7 (21...Nf3+ 22. gxf3 Qxf3 23. Qf8+ Kxh7 - 23...Kg6? 24. Qg8+ Kh5 25. Bd1! Bxf2+ 26. Kf1 Bxe1+ 27. Bxf3 and White wins - 24. Qxf7+ and White wins) 22. Qxf7+ Qxf7 23. Bxf7 Nc2 24. Rc1 Bxe4 25. Nc3 is also winning for White] <21. Bxd4 Bxd4 22. Qf5+ Kh8 23. Bxf7> looks like Black's absolute best try limiting White to a 2 pawn advantage and a better position.

Of course an assiduous follower will peruse all the side comments. You will agree how easy the use of a distinguishing color makes our understanding what is being said.

Mar-17-12  LoveThatJoker: <sevenseaman> Trust me: I try to do the coloured text as much as I can.

There is no attempt to obfuscate as I solve the problems with great care and make the greatest effort to ensure that they are the best possible continuations.

Simply by examining my lines in a cursory fashion you can see that they are of amazing quality and originality.

This said, going back to the whole colour coding: You must understand this was a very complicated puzzle and I was genuinely more concerned with solving it correctly than with how it would look once posted.

To sum up: I make every attempt to make sure the presentation of my lines is as clear as possible. However, when the presentation is not as clear, take a few minutes to sort it out yourself and I promise you that you will be rewarded with an accurate, enlightening and original treatment of the position in question.

LTJ

PS. If there are ever any innacuracies, I will either have owned up to it first through a "**CORRECTION**" post or via a post sent to me by a fellow kibitzer: I'm simply looking for the truth.

Mar-17-12  sevenseaman: <LoveThatJoker> No problem today. It was a generalised observation/proposal meant for all posters.

Your comment was only used as an illustration. I do not wish to miss posts from good analysts (though I read all) merely because these are a bit abstruse to decipher.

Mar-18-12  Norbi506: Can black hold on after 23. Qf5? How does white continue after Qf5?
Mar-18-12
Premium Chessgames Member
  Sastre: 23...Qf5 24.Bxe8 wins.
Mar-18-12  Norbi506: ok ^^
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