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Alexander Huzman vs Igor N Khmelnitsky
Herson 48/210 (Huzman,A; Vainerman,I) (1989), Herson 48/210 Huzman,A; Vainerman,I
Caro-Kann Defense: Karpov. Modern Variation (B17)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jan-10-10
Premium Chessgames Member
  lost in space: With the help of my silcon monster and with what was written so far I tried to improve the defense:

12. Nxf7 Kxf7 13. dxe5 Qxe5 14. Nf4 (superior to Rhe1 and f4) 14...Nd5! (superior to Ne4) 15. Ng6 Qf6 16. Nxh8 Kg8 17. Rhe1! (17. Ng6 Nc5 18. c4 Nxd3+ 19. Qxd3 Bf5 20. Qf3 Qxg6 =)

17...Kxh8 18. Re8+ Nf8; better for white, but no win


click for larger view

Jan-10-10  goodevans: So many possibilities to choose from (12 Nxf7, 12 Ne6, 12 Bc4, 12 Bg6, 12 f4, 12 Nf4, 12 dxe5). If black can castle then the threats seem to diminish so something forcing seems to be in order.

I quite like the look of 12 f4 but can't seem to turn it into a win. In fact I can't quite turn any of the candidates into a win so I think I'll plump for <12 Nxf7 Kxf7 13 dxe5> since 13 ... Nxe5? drops the Q to 14 Bg6+. Not sure how things would continue after <13 ... Qxe5> though. Possibly white gets a bit of an attack with <14 Nf4>.

Time to see what the solution is.

Jan-10-10  goodevans: Wow! Spot on with the first three moves!

Can't say I saw any further than that though so I can only really give myself half marks today.

Jan-10-10
Premium Chessgames Member
  OhioChessFan: Too deep for me. Nxf7 and dxe5 were clear enough. I was lost after that. There's no way 17...Nf8 was best.
Jan-10-10
Premium Chessgames Member
  Once: f7 week comes to a close with a position which is almost impossible to calculate, but can probably be played on general principles.

We start with a lead in development, but our knight is under attack from the h6 pawn. Now any knight retreat leads to problems: eg 12. Nf3 e4 with a pawn fork or 12. Nh3 e4 13. Bc4 b5 Bb3 a5 and black is developing a pawn roller on the queen side.

So much for the beige chess. We are CG kibitzers and that means we are made of sterner stuff. We laugh in the face of danger, spit in the eyes of fear and pull a wedgie in the underpants of terror. No knight retreat for us ... it's time for the classic f7 sacrifice.

The feature in the position that should get our juices flowing is the unprotected black queen on d6 opposed by the d-file battery of queen and rook. If only we can magically make the Bd3 and d4 pawn disappear, the black queen is toast.

So we need to lure the black king to a square where we can move the bishop with check. A little jiggling with move orders gets to this line: 12. Nxf7 Kxf7 13. de. Now 13...Nxe5 allows the discovery with Bc4+ or Bg6+, so black has to play 13... Qxe5. This gets us to here:


click for larger view

Now white has a choice of tempting moves: 14. Nf4, 14. f4, 14. Bc4+ and 14. Rhe1. But I'm struggling to see a clear winner ... or a convincing win. I'd probably play into it anyway, because it is also fun to kick the opponent's king around, especially if you have open lines and better development.

Plug it into Fritz and a slightly different picture emerges. On my slow laptop, Fritz initially doesn't rate 12. Nxf7 as the strongest move. Instead, he prefers 14. Ne4 or 14. de with a slight plus for white. Fast forward to the game continuation and after 14. Nf4 Fritzie initially says 0.00, with his favourite black response as 14...Qc5.

But let Fritzie chew on it for a while and the eval slowly creeps up for white. After 5 minutes, he reckons that 14...Nd5 is +1.10 and 14...Ne4 is +1.42. His original pick of 14...Qc5 has slumped in the pop charts to +2.25.

So chalk up a half point for meat-eating, red-blooded humanity. We can spot the strength of 12. Nxf7 whilst the machine is still grubbing away with the likes of 12. Ne4.

Jan-10-10  cyclon: 12.RHE1 and relatively safest line for Black seems to be; -O-O 13.dxe5 Qxe5 ( -Nxe5? 14.Bh7+) 14.f4 or Nf3 when it`s a game though Whites edge. Another, but risky line for Black is (12.Rhe1) -e4 13.Nxe4 Nxe4 (Qxh2?!) 14.Bxe4 Qxh2?! 15.Ng3 Qh4 16.Bxc6+. I don`t know what should be a main line here, but SUPPOSING Black TAKES the Knight [A VARIATION WHICH I CONSIDER the MOST]; (12.RHE1) -hxg5, there MIGHT follow; 13.dxe5 (didn`t see any better) -Nxe5 ( -Qxe5? 14.Ng3 wins Queen) 14.Qxg5 (f.e. Ng3 gives Black a little bit more time to perhaps find something) and in this position it seems that White regains material with a bind; -Bd7 15.Ng3 / -Be6 15.Qxg7 / -O-O 15.Bh7+ / -Rg8/h5 15.Ng3 followed by f4 / -g6 15.Ng3 etc. That LEAVES (12.RHE1); -Nxd3+ 13.Rxd3 Qf8 ( -Nd5 14.Qxg7, or/and c4) 14.Ng3+ Be6 ( -Qe7 Whites edge) 15.Nf5, and NOW; -Rg8/h7 16.Rxe6+ fxe6 17.Qg6+ Qf7 18.Nd6+ wins / -Rh5 16.Nxg7+ wins / -Rd8 16.Nxg7+ Ke7 17.Nf5+ Ke8 18.Rxd8+ Kxd8 19.Qxf6+ and it`s not hard to guess who`s got the edge. BUT MAYBE WHOLE IDEA STARTING WITH A MOVE 12.RHE1 IS FLAWED (1) BECAUSE > I didn`t find a clear-cut continuation for White after 12. -hxg5 13.dxe5 Nxe5 14.Qxg5 KF8. In this `light`, 12. -hxg5 just might hold, but it`s awful position to navigate the way out in OTB-game. These are MERELY illustrations about possible lines, there are surely many others. I don`t know yet what`s the game-line. YET, there is one more line of importance that I pondered, namely (12.RHE1); -exd4 and in that case one possible direction might be; 13.Nxd4+ Kf8 (seems like the only move) 14.Nf5 and f.e. -Qc7 ( -Qc5 15.b4) 15.Nxf7 Kxf7 16.Bc4+ Kf8 ( -Kg6 17.Ne7+ BKing runs for mate) 17.Qe3 Qd8 18.Qe6 Nd5 19.Rxd5 cxd5 ( -Rg8 20.Rxd7 mates) 20.Qg6 Rg8 21.Qd6+ Kf7 22.Bxd5X. Just an example about the possibility. Again, White may have found something else...
Jan-10-10  cyclon: Okay, I see. 12.Nxf7 is a "silicon"-type of move to me, because it comes in so early stage. I check it for a while and wasn`t convinced. Difficult move to spot with it`s consequences in so EARLY stage, BECAUSE not so much PRELIMINARY things has happened. Well played game by White anyway, By the way, how "monster" refutes 14. -g5 ( instead of -Ne4) in the game-line?
Jan-10-10
Premium Chessgames Member
  chrisowen: Pulling the Nxf7 off sure looks like a gas. The saga continues with kxf7 dxe5 qxe5 then you need remote imaging. Group the sat light rooks into the centre and drill the knight away. Huzman's play is like Cassia in the sky knelt him down and offered up her secrets. No rig is finished without a mate so it was Nf8 giving the platform for a cute finish.
Jan-10-10
Premium Chessgames Member
  johnlspouge: Sunday (Insane):

Huzman vs Khmelnitsky, 1989 (12.?)

White to play and win.

Material: Even. The Black Ke8 has 3 legal moves, all dark squares. The White battery Rd1 and Qd2 x-rays the loose Qd6 through the White Bd3 and Pd4, suggesting a possible clearance. The Bd3 is light-squared, as is f7, the square that the White Ng5 attacks. The Black Ph6 threatens Ng5, which can withdraw or sacrifice itself, e.g., with 12.Nxf7, to decoy Ke8. The White Kc1 is secured from check.

Candidates (12.): Nxf7, dxe5

12.Nxf7 Kxf7 [else, drop at least a P]

13.dxe5 Qxe5 [Nxe5 Bg6+ wins Qd6]

Candidates (14.): Bc4+, Nf4, f4, Re1

[14.Bc4+ Nd5 15.Nf4 Nb6 seems to hold]

14.Nf4 (threatening 16.Re1 17.Bg6+ 18.Bf7+ 19.Qd6#)

(1) 14Qc5 [Qd4 or Qd6 15.Bg6+] b5

To avoid blocking the flight square f8 for the Black Kf7 and to survive, Qc5 must eventually lose contact with d6, so the threat succeeds.

(2) 14Ne4 15.Bxe4 Qxe4 [else, down material with a bad position]

16.Re1 Q any

17.Q to e-file (threatening 18.Qe6+ 19.Ng6#, or 18.Qe7+ then 19.Rd8+ or 19.Qe8+ 20.Qg6+ 21.Re8+)

Black must sacrifice at least a piece to prevent all mate threats down the d- and e-files.

(3) 14Nd5 15.Ng6 (forking Qe5 and Rh8)

While possibly not the best move, 15.Ng6 suffices to regain the material in a superior position.

Jan-10-10
Premium Chessgames Member
  RandomVisitor: After 10.Qd2:


click for larger view

Rybka 3:

<[+0.00] d=24 10...h6> 11.Ne4 Nxe4 12.Bxe4 Nf6 13.Bf3 0-0 14.0-0-0 e5 15.dxe5 Qxe5 16.Nd4 Bg4 17.Bxg4 Nxg4 18.Nf3 Qc7 19.Qd7 Qf4+ 20.Qd2 Qc7 21.Qd7 Qf4+ 22.Qd2 Qc7 23.Qd7 Qf4+ 24.Qd2 Qc7 25.Qd7 Qf4+

[+0.03] d=24 10...b6 11.0-0-0 h6 12.Ne4 Nxe4 13.Bxe4 Nf6 14.Bf3 Ba6 15.a3 0-0-0 16.Rhe1 Bc4 17.Kb1 Kb7 18.h3 Bd5 19.Bxd5 Nxd5 20.c4 Nf6 21.Qe3 Rd7

Jan-10-10
Premium Chessgames Member
  RandomVisitor: After 17...Rf8 18.Ne6 Kg8 19.Nxf8 Qxf8:


click for larger view

Rybka 3:

<[+0.73] d=18 20.Re7> Nf6 21.Qe5 Kh8 22.Rd6 Kg8 23.f3

[+0.55] d=18 20.Qc7 Kh7 21.f4 Qf5 22.Re7 Qg4 23.g3 Nb6 24.Qe5 Nd5 25.Rf7 Be6 26.Rxb7 Bc8 27.Rf7 Be6 28.Rxg7+ Qxg7 29.Qxe6 Rb8 30.c3 Qb7 31.Rd2 Qb6 32.Qe4+ Kh8 33.Qe5+ Kg8 34.Re2

Jan-10-10  Quentinc: <Cyclon - I didn`t find a clear-cut continuation for White after 12. -hxg5 13.dxe5 Nxe5 14.Qxg5 KF8.>

I'm glad someone else liked 12. Rhe1 too! In the line you mention, I was liking 15. Nf4. If 15...Neg4, then 16. Bf5. If 15...Nxd3+, 16.Rxd3 Qc7 17. Qc5+ Kg8 18.Re7....

Jan-10-10
Premium Chessgames Member
  wals: Rybka 3 1cpu 3074mb hashtable
tracks the text moves to 14.Nf4
but prefers 14....Nd5 (+0.61) to
the text move blunder 14....Ne4 (+2.25)
Jan-10-10
Premium Chessgames Member
  lost in space:


click for larger view

I have to correct me. This position is won for White. I made deep analyse and slided forward a lot of lines.

Me and my silicon assistant (or vise versa?!) were not able to hold black's position.

Jan-10-10  cyclon: <Quentinc: 15.Nf4 Nxd3+, 16.Rxd3 Qc7 17. Qc5+ Kg8 > Thanks for comment! I had THIS position, but it seems like 18.Re7 is NOT playable. You see, comes -Qxf4+ 19.Kb1 Be6, only Black is winning. BUT, maybe "insane" 18.Ng6 (Nd5 isn`t just quite enough) -fxg6 19.Qc4+ and if Black is not satisfied by draw -Kf8, he might try -Kh7 ( -Nd5 20.Re8+), 20.Qh4+ Nh5 and now maybe 21.Rf3, unclear.
Jan-10-10
Premium Chessgames Member
  gofer: 12 Nxf7+ Kxf7 (or else white wins the exchange and a pawn) 13 dxe5 Qxe5 (Nxd5 14 Bg6 winning the queen)
14 Bc4+ ...

Things are starting to look a little uncomfortable for black, especially as Bc8 is blocked from protecting the white squares and only Nf6 can do anything by playing Nd5. But if black plays Nd5 early to block Bc4+ then white can try to push down the f file!

All the king moves lead to real trouble for black...

14 ... Kg6 15 Nf4+ ...
14 ... Kf8/Ke7 15 Nf4 ...
14 ... Ke8 15 Nd4 ...

So black is probably going to avoid, moving his king

14 ... Nd5

But this leads to other issues! White can now push his queen side pawns into the kings' position and hope to open up the f or g files. At the same time the queen can be pushed around as the pawns advance the rooks move into open files and the knight can attack at any point too...!

15 f4! ...

Now the queen must move but where? Qf5/Qd6/Qe7/Qe8 Nd4, Qh5 h3, Qf6 g4. All moves seem to improve white's position and trap black in the mire!

Time to check...

Jan-10-10  muralman: Got the first two moves, then lost my way. I forgot this week is all about queen traps.
Jan-10-10  David2009: Sunday's Insane position Huzman vs Khmelnitsky, 1989 White 12?

In this very sharp position 12 Nxf7! hoping for 12...Kxf7 13 dxe5 Nxe5?? 14 Bg6+ winning the Q leaps to the eye. Much better for Black is 13...Qxd5. White has sacrificed N for P to keep Black stuck in the centre, but I can see no clear win. I am feeling lazy and will look no further (4.5/6 to date this week). Time to check:
=====
The position after the sacrifice is


click for larger view

(Huzman v Khmelnitsky 1989, 14?). I fed this position into Crafty (link below) and found Crafty agreed with the game defence until move 17, thus 14.Nf4 Ne4 15.Bxe4 Qxe4 16.Rhe1 Qf5 17.Qd6 , when it diverges with 17...Re8. One possible continuation is 18.Rxe8 Kxe8 19.Re1+ Kf7 20.Re7+ Kg8 21.Ne6 Qxf2! 22.Re8+ Kh7 23.Qd3+ g6 24.Re7+ Kh8 25.Re8+ Kh7 26.Re7+ draw. In the final position, it is dangerous for either side to deviate. On-line link:
http://www.chessvideos.tv/endgame-t... You are white, drag and drop the move you want to make. Enjoy!

Crafty (colours reversed) finds an alternative for White after the sacrifice: 15.Qe3 (instead of 15. Bxe4) Re8 16.Rhe1 g5 17.Qxe4 Qxe4 18.Bxe4 Rxe4! 19.Rxe4 Nf6 20.Ra4 gxf4 21.Rxf4 Be6 with an unbalanced and approximately even endgame


click for larger view

(White to play).

Jan-10-10
Premium Chessgames Member
  patzer2: <RandomVisitor> Thanks for the analysis of 10...h6, 10...b6 and 17...Rf8. It would seem Black missed his last chance to equalize by not playing 10...h3 = or 10...b6=, and his last opportunity for drawing chances by not playing 17...Rf8! .

While I agree 14. Nd5! avoids immediate loss and maximizes resistance, like <lost in space> I'm not so sure Black can survive against strong play. However, it does seem to offer some OTB drawing chances.

Jan-10-10  Quentinc: <Cyclon,> thanks. I completely overlooked the hanging knight!
Jan-11-10
Premium Chessgames Member
  Willber G: Instead of 17...Nf8, what is wrong with 17...Kg8?
Jan-11-10
Premium Chessgames Member
  zanshin: <Willber G: Instead of 17...Nf8, what is wrong with 17...Kg8?>

After <17...Kg8>


click for larger view

<18.g4> seems to be a killer which allows White to set up a mating net. Rybka then recommends giving up the Queen with <18...Qf6 19.Re6>. Other moves result in loss of Queen or mate.

Jan-11-10  LIFE Master AJ: <Once>
"So much for the beige chess. We are CG kibitzers and that means we are made of sterner stuff. We laugh in the face of danger, spit in the eyes of fear and pull a wedgie in the underpants of terror. No knight retreat for us ... it's time for the classic f7 sacrifice."

A true classic.

The heck with chess. You get two awards here.

# 1.) The "A.J." award for comedy in writing.
# 2.) General recognition for having some of the more entertaining posts on this server. (Wish mine were half as good.)

Jan-12-10
Premium Chessgames Member
  Once: <LIFE Master AJ> Kind words, but I wish my analytical skills were a fraction of yours!
Jan-17-10
Premium Chessgames Member
  VargPOD: Sunday.

Got 12.Nxf7 Kxf7 13.dxe5 Qxe5 and after that there are many good looking moves, but could not calculate throught the maze. Still, I'm taking a half point on this one.

Total 3,5/7.

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