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Andreas Huss vs Eric Lobron
"Huss Little Baby Don't You Cry" (game of the day Feb-24-2015)
Beer-Sheva (1985), ?
King's Indian Defense: Orthodox Variation. Positional Defense Closed Line (E94)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 4 ·  Later Kibitzing>
Dec-26-09  Quentinc: Well, if I had 20 minutes in an OTB game I would have found 44. Nd3, since (after agonizing in front of the computer for 20 minutes) it was the only thing that didn't lead to a clear loss. I didn't realize that White would actually have an edge, just that he survived with roughly equal material.

The nice thing about this and the previous puzzle is that they were more realistic. It was obvious that your position was on the verge of collapse, so the next move was absolutely critical. Not like most puzzles, where if the same position occurred over the board there would be no way (at least for me) of knowing that the next move was make-or-break.

Dec-26-09  Quentinc: By the way, <OhioChessFan>, thanks for the great analysis of the endgame.
Dec-26-09  Marmot PFL: Found 44 Nd3 fairly quickly, as it looked like the only move. White often has to find moves like this in the KID and hope for the best.
Dec-26-09
Premium Chessgames Member
  Jimfromprovidence: <OhioChessFan> <I don't think Black can hold that, much less win. White's Knight is far more useful than Black's LSB and the d Pawn is eternally weak.>

I would agree with your assessment if the rooks were not on the board. Black’s rook and bishop together can still give white headaches.

After <44 Nd3 Qxc2 45 Rxc2 Bxe1 46 Nxe1 Rb4 47 Kf2 Bxc4>, a representative continuation is 48 Rc3 Ba6 49 Ra3 Rb2+.


click for larger view

Now white’s king is driven to the g file because if 50 Ke3?? 50…Re2#.

So, if 50 Kg3, then after 50…c4 it still is a very close match, where white has a slight edge.


click for larger view

Dec-26-09  cyclon: <OhioChessFan: I plugged in 47. Re2 Rxc3 48. Qxc3 and let Fritz chew on it. As unbalanced as that position is, Fritz says it's dead drawn after 19 plies.> Interesting, very interesting indeed...,
Dec-26-09  cyclon: <Eduardo Leon: After some (initially sloppy) analysis, we have established that the multipurpose move 44.Nd3 stops all black threats, saving the day for white.> Pretty much so, yeah.
Dec-26-09  gofer: I liked this one. If white plays the best defense he can find then he wins. If white plays anything less, then he loses. So we are looking for a defense, not an attack... ...can't remember the last time I saw this as MOTD...

I think that really white has very few choices!

44 Nd1 Qh1+ winning R
44 Nd3 Qxc2 winning N
44 Nh1 Qxh1 winning N + R
44 Nh3 Qxh3+ winning N
44 Ke2 Qxf2+ winning
44 Rce3/Rd3 Bxc4+ winning as 45 Bxf2 ... 46 Qg1# is unstoppable 44 Q anywhere Rxc3 which either wins the R or leads to Qxf2#

So we are left with moving Re1. Now white must protect Qxf2# and not allow Rxc3 to win the rook, so we only have Re2 and Ree3.

44 Ree3 Rb1+
44 Re1 Rxe1 (44 Qxb1 Qxf2#)
45 Kxe1 Qg1+
46 Kd2 Qxf2+
47 Kc1 Qe1
48 Kb2 Bf2 and black is winning!

So now we are just left with Re2

44 Re2 Bxc4 (now Rb1 fails to 45 Qxb1!)

45 Rxc4 Rxf3 (now Nf2 is pinned and so 46 ... Qh1# is looming, white's king must run!)

46 Ke1 Qg1+

47 Kd2 Bxf2 (regaining the piece)

48 Rc3 and now white's position is solid and the a pawn is free to create havoc. Now this is probably a huge oversimplification of what is quite a complex position, but its time to check...

Dec-26-09  WhiteRook48: had 44 Rxb3 Bxc4+ 45 Qe2 with unclear continuation
Dec-26-09
Premium Chessgames Member
  OhioChessFan: <Joe: After <44 Nd3 Qxc2 45 Rxc2 Bxe1 46 Nxe1 Rb4 47 Kf2 Bxc4>, a representative continuation is 48 Rc3 Ba6 49 Ra3 Rb2+. Now white’s king is driven to the g file because if 50 Ke3?? 50…Re2#.

So, if 50 Kg3, then after 50…c4 it still is a very close match, where white has a slight edge. >

I think <49. Ng2> is better. White has no need to commit the Rook to the edge of the board yet. It's fine blockading on the c file and might want to go to the b file. eg 49...Rb2+ 50. Kg3 c4 51. Ne3


click for larger view

Dec-26-09  cyclon: <gofer:So now we are just left with Re2

44 Re2 Bxc4 (now Rb1 fails to 45 Qxb1!)

45 Rxc4 Rxf3 (now Nf2 is pinned and so 46 ... Qh1# is looming, white's king must run!)

46 Ke1> Sorry! Black does NOT play here -Qg1+?, but -QH1+ 47.Kd2 (only move, as you can see) -Bf4+ 48.Re3 Bxe3+ WINS.

Dec-26-09  sethoflagos: <Jimfromprovidence - I actually like this line for black, seeing 46...Rb4 47 Kf2 Bxc4>

I didn't pursue this line beyond a position where I thought white could make a game of it, Jim. Like <OhioChessFan> I think I marginally prefer white

44 Nd3 Qxc2
45 Rxc2 Bxe1
46 Nxe1 Rb4
47 g5 .... looks more of a challenge than a passive Kf2

I also agree with <OhioChessFan> on the line:

44 Nd3 Qxc2
45 Rxc2 Rxd3?
46 Rb1 Ra3
47 Rb6 Rxa5
48 Rxd6 Ra4
49 Kg2 Bf4
50 Rxg6+ Kf7
51 Rc6 Bxc4
52 Rxc5 Bd3
53 Rc7+ ...

Which might continue
53 ... Ke8
54 Rb2 Kd8
55 Rg7 Kc8
56 d6 ... leaving black in desperate straits:


click for larger view

But how on earth does Fritz make <RandomVisitor>'s line

44 Nd3 Qh1+
45 Ke2 Qg2+
46 Kd1 Qxf3+
47 Re2 Rxc3
48 Qxc3 ... a draw?

What does Fritz reckon the continuation is to

48 ... Bc8
49 any Bxg4

For 49 Qb3 (alternate suggestions welcome)


click for larger view

This looks very strong for black (though I do realise it's pointless arguing with a machine - just curious :-)

Dec-26-09  cyclon: <sethoflagos:> PERHAPS 49.Qd2, and if -Bxg4, then 50.Kc2, when Black can`t change in e2, because a5-a6 Queens. Besides, White threatens 51.Re3, or a6. Maybe even 49.a6 straight is playable.
Dec-26-09  turbo231: According to Rybka it's a draw.
Dec-26-09  Quentinc: <Sethoflagos>, how about 49 Kd2? If 49...Bxg4 50 Nc1. Black can win material back in a variety of ways, but has to deal with the a pawn. If 50...Bf4+ 51 Kc2, and although Black can go up two bishops to the rook, he must surrender one for the a pawn. I'm probably missing something better for Black.
Dec-26-09
Premium Chessgames Member
  OhioChessFan: <For 49 Qb3 (alternate suggestions welcome) >

49. Kd2 Bxg4 50. Nc1


click for larger view

This is a problem for Black. There is no way he can exchange Queens. The b3 Bishop is skewered. It must move with check, so 50...Bf4+ 51. Kc2 and now Black is stuck with either Qh1 or Qf1. That can't be good. Which tells me Black can't play Bxg4. I'll run it through Fritz.

Dec-26-09
Premium Chessgames Member
  OhioChessFan: Well, <Quentinc> and I had a decent move, but Fritz says <cyclon> suggestion of Qd2 is even better. At 20 plies, Fritz says: (1.16) 49. Qd2 Qxg4 50. Kc2 Bh4 51. Nc1 Kg7 52. Qd3 Qg1


click for larger view

(I'll note when I played this out and let it sit 18 plies, the eval ran to 1.37)

(0.69) 49. Kd2 Kg7 50. Qc2 Bh4 51. Kc1 Bd8 52. Nf2 Bxa5 53. Qd3 Bxg4 54. Ra2 Be1 55. Qxf3 Bxf3 and we get this bizarre position:


click for larger view

(After playing that out and letting it sit 20 plies, the eval rose to 1.00) Back to the orginal question, that tells me 49...Bc8 isn't a good idea for Black and the draw appears to be the best Black can hope for. FWIW, Fritz says either 49...Bh4 or Bf4

Dec-26-09  newzild: <OhioChessFan> In your position, black has the simple 50...Qxc3+ 51.Kxc3 Bxe2 52.Nxe2 Be1+, winning the pawn on a5 and leaving black a pawn up.
Dec-26-09  sethoflagos: 49 Qd2 doesn't work

44 Nd3 Qh1+
45 Ke2 Qg2+
46 Kd1 Qxf3+
47 Re2 Rxc3
48 Qxc3 Bc8
49 Qd2 Bxg4
50 Nc1 Bf4
51 Qd3 Qh1+
52 Kc2 Qxc1+
53 Kb3 Qa1
54 Qc2 Bxe2
55 Qxe2 Qxa5

Can't refute 49 Kd2 though. Thanks!

Dec-26-09  newzild: ...I'm referring to the position after 49. Kd2 Bxg4 50. Nc1.
Dec-26-09
Premium Chessgames Member
  OhioChessFan: I'll call it a day on this one. Most enjoyable POTD for me in a long time. The sort of pre-endgame is my comfort zone. Middle game tactics are usually too much for me on Saturdays.
Dec-26-09
Premium Chessgames Member
  OhioChessFan: <newzild: In your position, black has the simple 50...Qxc3+ 51.Kxc3 Bxe2 52.Nxe2 Be1+, winning the pawn on a5 and leaving black a pawn up.>

52. a6
That's the same problem Black has with the Bxg4 lines.

Dec-26-09  sethoflagos: Seems Qd2 beats it too. Oh well.
Dec-26-09
Premium Chessgames Member
  OhioChessFan: <seth: 49 Qd2 doesn't work

44 Nd3 Qh1+
45 Ke2 Qg2+
46 Kd1 Qxf3+
47 Re2 Rxc3
48 Qxc3 Bc8
49 Qd2 Bxg4
50 Nc1 Bf4 >

50. Kc2

Dec-26-09
Premium Chessgames Member
  OhioChessFan: Here's a pic of Lobron:
http://graphicshunt.com/images/lebr...
Dec-26-09  sethoflagos: Cheers OCF. Hope tomorrow's is as much fun
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