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Wagner vs Zdzislaw Hermanowicz
POL corr (1933) (correspondence), ?
Polish Opening: King's Indian Variation (A00)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Jan-22-14  Patriot: White is up a piece for 2 pawns.

37...Be3 is a nice candidate.

38.Qxe3 Qxh3 39.Bxd6+ Kb7 looks very strong.

I think 37...Be3 wins.

Jan-22-14  tjshann: Yes, Be3 does it. And White then gives a check before dying.
Jan-22-14  Patriot: Ok, 38...Qxh3 draws. 38...Rxg4+ is more direct and wins. I didn't even see Rc1+ tonight--too tired.
Jan-22-14
Premium Chessgames Member
  An Englishman: Good Evening: Think you're tired, <Patriot>? I thought it was White To Move, and found Bxd6+.
Jan-22-14  Shams: Pronouncing Black's first name is more like a Friday puzzle.
Jan-22-14  patfoley: 37 ... Qxh3 is the most fun
Jan-22-14  patfoley: 37 ... Qxh3 is the most fun
Jan-22-14  VincitQuiSeVincit: I thought of 37. ... Qxh3 38.BxQ Be3+ 39.Kh2 Bf4+ etc
Jan-22-14  Cheapo by the Dozen: The obvious try is

37 ... Bd3
38 Qxd3 Rxg4+
39 hxg4 Qh2#

White doesn't have any useful alternative on Move 38; the various possible checks can all be answered by ... Kb7. His only alternative on Move 39 is Kf2. So the main line is now:

37 ... Bd3
38 Qxd3 Rxg4+
39 Kf2 Rg2+

After that, there are two alternatives. One is:

40 Ke1 Re2+
41 Qxe2 fxe2

Black has a decent material advantage and a pair of highly advanced connected passed pawns; looks like a win to me.

The other is

40 Kxf3 Qxh3+
41 Qe4 Rh4+

and White is totally destroyed.

Jan-22-14  Cheapo by the Dozen: Oops. I overlooked White freeing up the f1 square, and didn't calculate a line for that. Otherwise I presumably got it.
Jan-22-14  Cheapo by the Dozen: You could easily have convinced me that this was a game by Nimzovich.
Jan-22-14  vkv: 37..Qxh3, 38. Bxh3, Bf4+, 39. Kh1, Rxh3+, 40. Qh2, Rxh2++.

but if after 37..Qxh3 white can give checks and may be give up a piece to avoid mate? I don't know.

Jan-22-14  patzer2: In the final position, Black has a mating attack after 40. Kf2 Qh4+! 41. Kf1 (41. Kxf3 Qxg3#) 41...Qxh3+! 42. Ke1 (42. Kf2 Rg2+ 43. Kf1 Qh1+ 44. Qg1 Qxg1#) 42...Rg2 .
Jan-22-14  patzer2: If 40. Kf1, then 40...Qxh3! 41. Ke1 Rg2 leads to mate.
Jan-22-14  Cheapo by the Dozen: In the final position, accepting the sacrifice is met by Qh2+/Qg2+/Rh1#

Declining via Kf1 can be handled by Qh3+/Rg2; I don't think White can do anything with the unforced move to stave off Qh1#.

Jan-22-14
Premium Chessgames Member
  FSR: Funny - at first I thought White was on move. 37.Bxd6+ looked like an obvious crusheroo if Black took, but then I started analyzing 37...Kb7 38.Bxe5 Be3 . . .

<Black> to move. 37...Be3! 38.Qxe3 Rxg4+ 39.Kf2 (39.hxg4 Qh2#) Qh4+ 40.Kxf3 Qg3#. OK, what if White creates a flight square with 38.Rfc1+! (take my rook, pretty please?). Then 38...Kb7 39.Qxe3 Rxg4+ and now:

40.hxg4 Qh2+ 41.Kf1 Qg2+ 42.Ke1 Rh1+ 43.Qg1 Rxg1#

40.Kf1 Qxh3+ 41.Ke1 (41.Kf2 Rg2+ 42.K moves Qh1+ 43.Qg1 Qxg1#) Rg2 (keeping the king stuck on the first rank, and threatening ...Qh1+) 42.Kd1 (42.Qxd3/Qxf3 Qh1+ 43.Qf1 Re2+ 44.Kd1 Qxf1#) Qh1+ 43.Qe1 Re2! 44.Qxh1 Rxh1#.

40.Kf2 Qh4+ 41.Kxf3 (41.Kf1 Qxh3+ - see above) Qxh3+ 42.Kf2 Rg2+ 43.K moves Qh1+ 44.Qg1 Qxg1# as usual.

Pretty involved for a Wednesday IMO. Of course, in a real game you wouldn't have to work all of this out to mate. It's obvious that if you're playing ...Rxg4+ and White can't capture, all those heavy pieces are going to kill his king.

Jan-22-14  M.Hassan: "Medium/Easy"
Black to play 37...?
Black has 2 pawns for a Bishop

Divering the White Queen from the second rank has advantages for Black:

37.........Be3
38.Qxf3 (forced or else Queen is lost herself
38...........Rxg4+
<if 39.hxg4 Qh2#>
39.Kf2 Rg2+
<if 40.Ke1 Re2+ and picks up the Queen>

40.Kxf3 Qxh3+
41.Ke4 Re2 pinning the Queen
42.Qxe2 dxe2
0-1
Time to check
=============
In the game, 38.Rfc1+ delays the loss by one move.

Jan-22-14  goodevans: <37...Qxh3+ >looks really complicated because of the many checks at white's disposal. However, black can take safe refuge on <b7>. I looked at several lines and black emerges with a big material plus in all of them and still white's K is precarious.

I've convinced myself that <37...Qxh3+> is good enough for a win, but <37...Be3> is definitely the clearer and better choice.

Jan-22-14
Premium Chessgames Member
  agb2002: Black has two pawns for a bishop.

The bishop on g4 prevents the invasion of the black queen. This suggests 37... Be3, attacking that bishop with tempo:

A) 38.Qxe3 Rxg4+ 39.Kf2 (39.hxg4 Qh2#; 39.Kh1(2) Qxh3#) 39... Qh4+ 40.Kxf3 Qg3#.

B) 38.Rfc1+ Kb7 39.Rc6 Rxg4+ 40.Kf1 (40.Kh1 Qxh3+ 41.Qh2 Qxh2#) 40... Qxh3+ 41.Ke1 Qh1+ 42.Qf1 Qxf1+ 43.Kxf1 Rg(h)1#.

C) 38.Bxd6+ Kb7 does not change the result.

Jan-22-14
Premium Chessgames Member
  FSR: <goodevans> 37...Qxh3 is not check - but it does win. Best play is then 38.Bxd6+! Kb7! 39.Bxh3 Be3+ 40.Kh1! Bxf2 41.Rxf2 Rxh3+ 42.Rh2 Rxh2+ 43.Kxh2 f2, resulting in a weird position where White is up a bishop but can't stop Black's f and d pawns:


click for larger view

44.Bxe5 Rg1! 45.Rxg1 fxg1(B)+ 46.Kxg1 d2 and the pawn queens (Houdini 3).

Jan-22-14  morfishine: I first looked at 37...Qxh3 (as others probably did to) trying to make something out of the exposed check after 38.Bxh3 Bf4+ or 38...Be3+; but its not so simple for Black since White can counter-sac with 38.Bxd6+

Simplest is <37...Be3> pinning the Queen

<38.Qxe3> This is forced, there is no in-between-move now; in fact, the rest is a forced mate

<38...Rxg4+ 39.Kf2 Qh4+ 40.Kxf3 Qg3#>

*****
PM: Funny, I took into account White's potential check 38.Bxd6+ but not the other more straightforward 38.Rc1+; No matter, these are all spite checks as Black's attacking theme is crushing

*****
<FSR> Thanks for posting the Houdini analysis of 37...Qxh3 so quickly; I ran the position through a PGN viewer and was coming up with a Black win; its just longer than the one starting with 37...Be3

*****

Jan-22-14  Dezaxa: Seems to me Black could have won much sooner with 30... Rxh2 31 Kxh2 Rh8 32 Kg1 Qh7.
Jan-22-14
Premium Chessgames Member
  FSR: <Dezaxa> I think you're right.
Jan-22-14  gars: I write in the hope any of you had the same problem: recently I received a message from www.chessgames.com that I had to update the Java program. I followed the instructions and now I can see no more games nor puzzle solutions. Since I have another computer at home I used it to check yesterday's POTD and just after that there was the same message, urging me to update my Java. I did it and well ... you guessed it all! Two computers, no games nor puzzles. I wrote Java yesterday but, up to now, no answer from them.

What the hell is going on? I know I am a complete "computer jerk" but I think I am quite able to follow written instructions.

Please avoid comments in "computer jargon". Thanks a lot.

Jan-22-14  erniecohen: <FSR> After 37...♕xh3 38. ♗xd6+ ♔b7 39. ♗xh3, simpler for Black is 39...♖xh3 40. ♕h2 ♗f4+ 41. ♔f2 ♗h2 and White can resign.
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