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Sergey Gennadyevich Kudrin vs Anthony Miles
USA-ch (1989), Long Beach, CA USA, rd 15, Dec-??
Nimzowitsch Defense: Kennedy Variation. Paulsen Attack (B00)  ·  0-1
ANALYSIS [x]

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Kibitzer's Corner
Jan-24-08  Xuorarch: I think 8.Be3 is a pretty good alternative.
8.Be3 Ng6(forced I think) 9. Bc4
Now if 9...Ne5, 10. Nxe5 Bxe5 11.Bxf7+ Kxf7 12. Qh5+
Jul-01-11  qqdos: 30.Bg3? is a mistake. 33...Qxf3! exploiting the unprotected g1-square is the tactic Kudrin may have overlooked. He hopes to defend with 34.Bc4+ but is undone by 34...Rxc4 35.gxf3 Rxh3+ 36.Kg2 Rh2+! allowing Black to recover his Queen plus 2 extra pieces. <Source: 1996 book by Keene & Jacobs - A Complete Defence for Black, advocating 1...Nc6 as a surprising all-purpose defence to every White opening!> Their conclusion: "A brilliant game."
Dec-27-13
Premium Chessgames Member
  offramp: There's always a place for Tony Miles in an English chess player's heart.
Dec-27-13  Cheapo by the Dozen: It looks like Qxf3 threatening Rxh3 does the job. Obviously I'm missing something ...
Dec-27-13  Cheapo by the Dozen: Oh. What I missed is that the bishop check is clearance for the defence of g1.
Dec-27-13
Premium Chessgames Member
  Phony Benoni: <Cheapo by the Dozen> That's what I'm thinking. After <33...Qxf3 24.Bc4+ Rxc4 35.gxf3> covers the original mate, but Black regains the queen with <35..Rxh3+ 36.Kg2 Rh2+ 37.Kg3 Rxd2 38.Kxg4>.

I think that leaves Black a piece ahead, but I'm very unsure; White has a lot of checks and rooks floating around. Let's peek...

OK, that did work. White came very close to a perp, but 38...Nh6 and 40..>Rcc2 saved the day.

It will be interesting to watch the complications explored as the day goes on.

Dec-27-13  Patriot: Material is even. White threatens 34.Qxd5 or 34.hxg4.

33...Qxf3

34.gxf3 Rg1#

34.hxg4 Rh3#

34.Bc4+ Kh8 35.gxf3 Rxh3+ 36.Kg2 Rh2+

34.Bc4+ Kh8 35.hxg4 Rh3#

Dec-27-13  mistreaver: Friday. Black to play. Difficult. 33...?
In this position, only one move comes instantly into mind: 33 ... Rxh3+
34 gxh3 Qxf3+
and now white has 2 posibilities:
A) 35 Bg2 Qg3
is not good
B) 35 Qg2 Rc2!
This beautiful move is pleasant to find even if it is or even neccesary. The idea is that both 36 Qxf3 Rh2+ and 36 hxg4 Rxg2 lose for white 36 Re2 Rxe2
37 Bxe2 Nf2+
and black has strong attack for the exchange i think. Time to check and see.
-----------------
Ahhhhh, good nuances, wrong introduction. I missed that in A variation after 35 ... Qg3 white has 36 Qd5+ with 37 Qh5+ (else mate on f7) which wins.
And i was also too optimistic and subjective in B variation, after 37... Nf2+
38 Kh2 Qf4+
39 Qg3
now mate is threatened on g7, therefore:
39... Qxg3
40 Kxg3
with a winning endgame for white.
One really has to be careful with these puzzles, and analyze more deeply and not so superficially.
Dec-27-13  Nick46: Anthony Serged Miles ahead - nothing Kud be done.
Dec-27-13
Premium Chessgames Member
  agb2002: The material is even (opposite color bishops).

White threatens 34.Qxd5, 34.hxg4, 34.Ree7, etc.

The weak white castle and the above threats suggest 33... Qxf3, trying 34... Rxh3#:

A) 34.gxf3 Rg1#.

B) 34.hxg4 Rxh3#.

C) 34.Rxg7+ Kxg7 35.Re7+ Kh8 wins.

D) 34.Bc4+ Rxc4 35.gxf3 Rxh3+ 36.Kg2 Rh2+ 37.Kg3 (37.Kf1 Rxd2 38.Ree7 Rc1+ 38.Re1 Rf2+ 39.Kg1 Rxe1#) 37... Rxd2

D.1) 38.Kxg4 (or 38.fxg4) 38... Rc7 - + [B+P].

D.2) 38.Ree7 Nh6 39.Rxg7+ Kf8 40.Rh7 Rcc2 41.f4 (41.Rxh6 Rg7+ 42.Kh3(4) Rh2+ 43.Kg4 Rxh6, etc.; 41.Rh8+ Ng8 - +) 41... Rg7+ 42.Kh3(4) (42.Kf4 Rc4#) 42... Rh2+ 43.Kg3 Rcg2+ 44.Kf4 Rh4#.

D.3) 38.Re8+ Kh7 39.Ree7 Ne3 40.Rxg7+ Kh6 41.Rh7+ Kg6 and there's no perpetual.

Dec-27-13  morfishine: I first examined 33...Rxh3+ & 33...Nf2+, both forcing moves with check. However, when both came up short, I looked for other moves and finally saw 33...Qxf3. The Queen is immune here due to 34.gxf3 Rg1#

<33...Qxf3> Black wins a piece outright besides threatening 34...Rxh3#

34.Qa2+ Kh7 35.Qb1+ (or 35.Rxg7+ Kxg7 36.Re7+Kh6) 36.hxg4 Qxg4 and White has no defense to 37.Qh4+

*****
PM: I didn't see 34.Bd5+; I wonder why White played 38.Ree7 instead of 38.Kxg4? I don't see a mating net

*****
<OffRamp> Yes, Tony Miles is one of the greatest English players ever

*****
<Nick46> Nice punning! Submit it before some silly word play is attached to this game

*****

Dec-27-13  notyetagm: Kudrin vs Miles, 1989

<Cheapo by the Dozen: Oh. What <<<I missed is that the bishop check>>> is clearance for the defence of g1.>

Yep, I <MISSED THAT CHECK>, too.

Very bad. You *cannot* miss <CHECKS>!

Dec-27-13
Premium Chessgames Member
  gofer: Well, we have two tempting sacrifices; Qxf3 and Rxh3

The rook sac seems to fail...

<33 ... Qxf3>

The queen is currently immune...

34 gxf3 Rg1#

34 hxg4 Qxg4

34 Qa2+ Kh8

<34 Bb4+ Rxd5>
<35 gxf3 Rxh3+>
<36 Kg2 Rh2+>
<37 Kg3 Rxd2>


click for larger view

38 Re8+ Kh7

39 fxg4 Bf2+

39 Kxg4 Rg2+

Seems okay...

~~~

Missed 38 onwards...

Dec-27-13  MarkFinan: Notyetagm.. Any cases of super GM's making blunders like the one below? I mean outright, dropping a piece, game losing, completely missing the obvious, patzeresque.. blunders??

...g5?? Qxb6


click for larger view

Dec-27-13
Premium Chessgames Member
  Penguincw: Woah! I was thinking of 33...Rxh3+ 34.gxh3 Qxf3+ 35.Qg2, but after something (maybe) like 35...Nf2+ 36.Kg1 Nxh3+ 37.Kh1 Qxg2+ 38.Kxg2 Nf4+ 39.Bxb7 Rb8 40.Bxa6 Ng6 41.Rxd6, black is down the exchange and also losing, since those passed pawns are going to be quick.
Dec-27-13  Patriot: <mistreaver> I like the self-analysis at the end--this is a really good way to improve.

<I missed that in A variation after 35 ... Qg3 white has 36 Qd5+ with 37 Qh5+ (else mate on f7) which wins.> 37...Nh6 is forced here, otherwise it's mate in a few moves. One possibility on 37...Qg3 is 38.hxg4 Qh4+ 39.Bh3 Qxh3+ 40.Qh2 with white winning.

I calculated much of this very similar to you (35...Qg3 in line A; and 35...Rc2 in line B). Line B really is what made me take another look at the whole line and eventually settle on 33...Qxf3.

<One really has to be careful with these puzzles, and analyze more deeply and not so superficially.> NM Dan Heisman calls ending calculation too early, "quiescence" errors. That is, when there are further checks, captures, and threats. Another point about this is that earlier moves matter more than later moves when calculating variations. My goal is to look at moves like Qxf3 and Rxh3+ at around 3-ply to get a feel for which may be stronger, to avoid wasting a lot of time later. 33...Rxh3+ is a good candidate but it took some effort on my part to back out of this idea. Had I looked at this at a shallow level and then looked at 33...Qxf3, I may have spent less time on the whole thing.

Dec-27-13
Premium Chessgames Member
  kevin86: The brilliant Qxf3! sets of white's doom watch.
Dec-27-13
Premium Chessgames Member
  Jimfromprovidence: <Morf> <I wonder why White played 38.Ree7 instead of 38.Kxg4? I don't see a mating net>

It seems that he sensed a loss and tried to swindle a draw by perpetual with 38 Ree7.

If he played 38 Kxg4 he allows black 38...Rg2+, below and the g7 pawn gets protection, with white down a piece and a pawn.


click for larger view

On the other hand, by playing the text 38 Ree7, he has the slim chance that black might try 38...Rc1?, below, seeing mate in 2.


click for larger view

This position is a perpetual draw.

Dec-27-13  Patriot: <mistreaver> <One possibility on 37...Qg3 is 38.hxg4 Qh4+ 39.Bh3 Qxh3+ 40.Qh2 with white winning.> Sorry, I made a mistake here. 40...Qxg4 (rook for bishop + 2 pawns) and is apparently a draw according to Houdini.
Dec-27-13  PJs Studio: I found everything up to 40. Rcc2! But I had missed whites 38.Ree7! in my initial analysis.

A very nice try by white to save a lost position.

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