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Andre Lilienthal vs Alexander Kazimirovich Tolush
Parnu (1947), Parnu URS, rd 1, Jul-14
King's Indian Defense: Normal Variation. Deferred Fianchetto (E72)  ·  1/2-1/2

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 3 ·  Later Kibitzing>
Mar-24-04
Premium Chessgames Member
  Sneaky: <There's no need to use Fritz in this kind of simple position, <socrates>. It's a basic king+pawns ending.> In defense socrates, he miscounted by only one move. If you take the position after 34.Bb5 Bxb5 35.cxb5, White would have a clear win if the Black king was on h7, or if the White pawn was already on a4.
Mar-25-04  karlzen: <sneaky>, yes of course it's a matter of exact calculation. However, the task is simple enough for a human, no need to consult a calc-monster. From g7-a8 there's 1+1+1+1+1+1 = 6 moves. For white: 1+1+1+1+1 (b6 is not be conuted as black has to take on b6) = 5 moves. Happily enough black is to play! :) socrates might've missed that black could walk in front of his own pawn (d6) and not behind it, thus keeping the white king away from bussiness.
Mar-05-06
Premium Chessgames Member
  patzer2: Black's 28...Bg1+ is a decoy which enables a double attack, allowing Black to simplify for an easy draw.

The move 28...Bg1+ is listed as the solution to number 1166 in Chess Informant's 1980 "Encyclopedia of Chess Middlegames," where it is classified as a decoy (spelled "dicoying" in this multi-language reference book).

Oct-09-11  brucejavier: 1st for 2011!! Nice combination too complicated for me
Oct-09-11  consul: @<brucejavier>: congratulations! For me in this puzzle the task of knowing what was Black playing for has been a bit difficult. It would be interesting to know the analysis of computers today... i simply didn't understand the outcome of the discussion in 2004.
Oct-09-11
Premium Chessgames Member
  al wazir: I didn't get it; I thought black had a win with 28...Kh6, which doesn't even count as a good try.

But it seems to me that 37...d5 gave black better chances in the endgame. If white plays Bc6 in order to win the d-♙ or if the white ♔ goes directly for the ♙ on a7, the black ♔ can gobble up white's K-side ♙s, and by my count, queens first. If 38. Ke3, then 38...Ke5, and black has threats against the ♙s on both wings.

Oct-09-11  abuzic: <28.Bxf7> 28.Rxf7+ or 28.Rb2 both look stronger for white in this position.
Oct-09-11  scormus: Fooled me, partly because I thought there should be a win. Sadly if 28 ... B54?? 29 Bd5+

Seems that after 28 ... Bg1! 29 Qxg1 is forced. If 29 Kh1 then Kh6 and on quick look I do not see a defense to 29 Be4

<abuzic: <28.Bxf7>> yes, 28 Bxf7 does seem a bit unfortunate for W. B had just played 27 ... Kg2 so maybe W should have smelt a rat

Oct-09-11  anandrulez: Wise . I didnt see a win , but didnt contemplate about draw . Nice puzzle and indeed an insane puzzle !
Oct-09-11  King Sacrificer: Is there a way for White to prevent draw with perpetual check after 28...Bxg3?

If not, i feel there's a way to win for Black. A Sunday puzzle should be harder than that. :)

Oct-09-11  rhickma4: I could not see a win for Black here.

So I would be playing 28...Bg1+ 29.Qxg1 Qe2+ 30.Qg2 Qxg2+ 31.Kxg2 Be4+ 32.Kf2 Bxb7

This looks slightly better for Black, but that's all.

Oct-09-11
Premium Chessgames Member
  morfishine: I can't find a win. The best I could do, while keeping <Patriot>'s advice (find the most forcing move) close to heart is: <28...Bxg3+ 29.Qxg3 Qd2+ 30.Kg1 Qd4+ 31.Qf2 Qg4+ 32.Kf1 Qd1+ 33.Qe1 Qf3+ 34.Kg1 Qxb7 35.Bd5 Qb6+ 36.Kg2 Qd8>


click for larger view

#########################################
So, Black played <28...Bg1+> and drew. Lets see if I missed something in 28...Bxg3+: After 29.Qxg3 Qd2+ 30.Kh1 (instead of 30.Kg1)...Bd5+ 31.Kg1 Qd4+ (31...Bxb7 allows 32.Qxg6+) 32.Kh2 Qd2+ 33.Kg1 Qd1+ 34.Kh2 Qc2+ 35.Kg1 Bxb7


click for larger view

The White rook is safely captured as Black Queen covers <g6>. White Queen cannot capture on <d6> due to mate on <f2>

Still looks highly drawish; But, thats what actually happened

Oct-09-11  TomOhio: The actual play went
28... Bg1+.

If. 29 Kh1
then
29... Qe4 yields the same result.
30. Kxg1 Qxg2+
31. Kxg2 Be4+

or 30. Qxe4 Bxe4+

Good one.

Oct-09-11  Treestar: Saw the draw. How's this for insanity though? Without variations <28...Kh6 (threatening Be4)>, so mainline goes <29.Bd5, Bd4 (stopping Rb2, controlling g6, h8)> what does white do against plan of pushing the g pawn?) <30.Bg8 threatens #) 30...g5 31.hxg5, Kxg5 (Be4 is threatened again) 32.Bd5,Be5 (pinning g3) 33.Rb3,h4 (now threatening 34...h3)>. Is Black winning,


click for larger view

? Too speculative?

Oct-09-11  jackalope: Tough one - Black DSB vs White rook - otherwise material and position even. Best I can see is a draw by rep for Black.

28... Bxg3
29. Qxg3 Qe2+
30. Qg2 Qe5+
etc.

Time to see what I missed...

Oct-09-11  jackalope: I meant draw by perpetual check : ) Glad I was right about the draw but the real finish to the game is fascinating. I'm still losing King-pawn endings so this is worth studying.
Oct-09-11  lerpo: I see this moves 28...Bg1+.29.Kh1.Bc8 and if goes to c7 Bb6+desc.What you think?
Oct-09-11  Memethecat: I've never solved a sunday POTD to completion & don't expect I ever will, but I gave this one the usual 20-30min grilling to see if any ideas appeared. Not even close, I would never have thought to look for a draw! I just hope the act of getting my cogs turning till it hurts has a beneficial effect on my OTB game.
Oct-09-11  sevenseaman: I have pondered it for 2-3 minutes. I do not see any magic tricks for Black. He is in a difficult situation and has to take the practical view. Whether he wins or more likely draws, this is the way he must go;

<28...Bg1+ 29. Qxg1▢ Qe2+ 30. Qg2 Qxg2▢ 31. Kxg2▢ Be4+ 32. K~ Bxb7>

And there is nothing <"Insane"> about it. It looks to be a dead draw to me. If someone pulls off a win for Black, I'll enjoy reading it, and perhaps learn some unknown tricks.

Oct-09-11  znsprdx: The first thing the chess mind sees is 'if only' ...Be4 could be played: the game combination(7 ply) ...Bg1+permits this, BUT only gets the draw.

<sevenseaman:> I found a rather interesting theme which works on trying to exploit White's not playing the simple 28.Rxf7+

28...Bc8 29.Rc7 Bb6 30. RxB[c8 KxB[f7 31. Qd5+ Ke7!? (not ...Qe6? 32.Qf3+) IF 32.Qg5+? Kd7! and the rook falls

Unfortunately 32. Qb7+ is the spoiler - oh well I tried...it was a pretty motif - which could almost work in zeitnot

Oct-09-11
Premium Chessgames Member
  morfishine: Does <28...Bxg3+> fail to draw? If so, I would like to see the line
Oct-09-11  abuzic: <znsprdx:....
I found a rather interesting theme which works on trying to exploit White's not playing the simple 28.Rxf7+

28...Bc8 29.Rc7 Bb6 30. RxB[c8 KxB[f7 31. Qd5+ Ke7!? (not ...Qe6? 32.Qf3+) IF 32.Qg5+? Kd7! and the rook falls

Unfortunately 32. Qb7+ is the spoiler>

28...Bc8 29.Rc7?;
<(after 29.Rb2 or 29.Rb3 white is better; 29.Rb8 Bxg3+ draws by perpetual)>;

29...Bb6?;
<(there is still time for draw by perpetual after 29...Bxg3+)>;

30.Rxc8 Kxf7 31.Qb7+ wins but 31.Qf3+ mates anyway:

-31...Ke7 32.Qb7+ Ke6;
<(32...Bc7 33.Rxc7+ Kf8 34.Qf3+ Kg8 35.Qf7+ Kh8 36.Qh7#; 32...Kf6 33.Rf8+ Ke6 34.Qf7+ Ke6 35.Qd5#)>;

33.Re8+ Kf6 34.Rf8+ Ke6 35.Qf7+ Ke6 36.Qd5#;

-31...Ke6 32.Re8+ Kd7 33.Qf7+ Qe7;
<(33...Kc6 34.Rc8+ Bc7 Qxc7#)>;

34.Qxe7+ Kc6 35.Rc8+ Bc7 36.Qxc7#;

-31...Kg7 32.Qf8+ Kh7 33.Qh8#.

Oct-09-11  LIFE Master AJ: I analyzed for 45 minutes, but came up blank, nothing even close to a win as far as I could see ...

My two main moves were 28...BxP/g3+ and then I switched over to 28...Bg1+.

If there is a win here, its over my head. (Time to check.)

Oct-09-11  LIFE Master AJ: <Treestar> I like your idea, be good to check it with an engine ...
Oct-09-11  LIFE Master AJ: Haha, its a draw, the joke is on me.
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