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Karl-Heinz Podzielny vs Gerhard Diez
Goch (open) (2007), ?, rd 2, Oct-05
Queen's Indian Defense: Classical Variation (E17)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Apr-20-17  Fish55: Nice double sac: 26.Bxh6 gxh6 27.Rxh6+ Kxh6 28.Qg5+ (covering e3) Kh7 29.f6. I should have analyzed further to see that after 29...Qxg3 30.Qxg3 Rg8 white has 31.Qc7, winning more material.
Apr-20-17  ChessHigherCat: 26. Bxh6 suggests itself as the first move since the B is en prise anyway. I was anticipating gxh6 and considered the immediate 27. Rxh6 but I didn't see the follow up so I continued 27. Qf4 to attack h6 without allowing the black Q to defend it. Not nearly as flashy as the game line but I think it's probably sufficient.
Apr-20-17  JohnDMaster: Easy solve, pretty much only one line to worry about.
Apr-20-17  stacase: 26. Bh6 is so obvious,
<See a good move look for a better one.> Didn't see one because the first one was best. Black doesn't have much choice other than opening up his castled King. And then White can have a field day.
Apr-20-17
Premium Chessgames Member
  al wazir: I think 26. Rxh6+ (my move) also wins: 26...gxh6 27. Qf4, and the only way to stop 28. Qxh6 is to give up the ♕ with 27...Qxe3+ 28. Qxe3.
Apr-20-17  patzer2: The demolition 26. Bxh6! is a rather obvious solution to today's Thursday puzzle.

A good alternative in the follow-up is 28. f6! which forces mate-in-six after 28...Qe3+ 29.Kh2 Bxe4 30.Qg7+ Kh5 31.Rf5+ Bxf5 32.Bf3+ Qxf3 33.Qg5#.

A worthy alternative at the start is 26. Rxh6+! which wins decisively after 26...gxh6 27. Qf4! Kg8 28. f6 (M15, Stockfish 8 @ 37 depth.)

P.S.: For a possible Black improvement, I strongly prefer the popular active move 7...exd5 = to as in M Ragger vs N Vitiugov, 2017 over the infrequently played 7...Re8 = in this game.

Black might have gotten some of the same active counterplay in the 7...exd5 = line with 9...exd5 = to .

After the passive retreat 9...Bf8?!, allowing 10. Nh4 , Black's game appears to slide steadily slide downhill.

Apr-20-17  Walter Glattke: 26.Bxh6 Qc3 27.f6 g6 28.Bd2 Rxe4 29.Qg5 mating
26.Rxh6+ Kg8 27.Rf3 Bxe4 28.f6 g6
29.Bxc5 Bxf3 30.Rxg6+ fxg6 31.Qxg6+ Kh8
32.Qg7#
Apr-20-17
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop, a knight and a pawn.

Black threatens Qxe3+ and Qxc4.

White has 26.Rxh6+ and 26.Bxh6.

In the case of 26.Rxh6+ gxh6 27.Qf4 Rh8 28.Qxh6+ Kg8 29.Qg5+ Kf8 (29... Kh7 30.f6 + -) 30.Qd8+ White has perpetual but perhaps nothing more.

In the case of 26.Bxh6:

A) 26... gxh6 27.Rxh6+ Kxh6 28.Qg5+ Kh7 29.f6

A.1) 29... Qe3+ 30.Qxe3 Re5 (30... Rg8 31.Rf5 Re(d)8 32.Qg5 Rg8 33.Qh5#) 31.Rf5 followed by Qg5 wins.

A.2) 29... Rg8 30.Qh5#.

A.3) 29... Qxg3 30.Qxg3 Rg8 (30... Kh6 31.Qg5(7)+ Kh7(5) 32.Qg7(5)#) 31.Qc7 and the double threat Qxf7+ and Qxb7 wins.

B) 26... g6 27.Rxg6 and the threat Rg7+ wins (27... fxg6 28.Qxg6+ Kh8 29.Qg7#).

C) 26... Rg8 27.Bf4 (27.Bxg7 and 27.Rg6 looks more complex)

C.1) 27... g6 28.Qg5 Rh8 (due to Qh6+ and f6; 28... gxf5 29.Q(R)h6#) 29.Qh6+ Kg8 30.Rd8#.

C.2) 27... Rh8 25.Qh5+ Kg8 26.Rd8#.

C.3) 27... Re8 25.Be5

C.3.a) 25... Rxe5 26.Qh5+ and mate in two.

C.3.b) 25... f6 26.Qh5+ Kg8 27.Qxe8+ wins.

C.3.c) 25... g6 26.fxg6+ is crushing.

D) 26... Qc3 27.f6 g6 (27... Rg8 28.Bxg7 followed by Qh5 wins) 28.Bc1 followed by Qg5 wins. For example, 28... Rh8 29.Qg5 Kg8 30.Rd8+ Kh7 31.Qh6#.

Apr-20-17  Walter Glattke: 26.Rxh6 gxh6 27.Qf4??
I had 27.Bhx6 Forces Kxh6 28.Qg5+ Kh7
29.f6 Rg8!? 30.Qh5#
27.Bxh6 Rg8 28.Qh5 Rxg3 29.Qxf7+ Kxh6
30.Qxb7 Rxg2+ 31.Kxg2 Qb2+ 32.Kh1
Apr-20-17  Vermit: I had 26.Rxh6 as well. After 26...gxh6 27.Qf4 Rh8 28.f6 is still winning but not as quickly as in the game.
Apr-20-17  morfishine: Got it except for Black's delaying tactic <29...Qxg3>

*****

Apr-20-17  Walter Glattke: D) 28.-Qc3 27.f6 g6 28.Bc1 (or Bd2 Glattke) Qe5 29.Rf5 Qxd6 30.Qg5 Qf8 31.h5 gxh5 black wins.
Apr-20-17  Walter Glattke: 29.Bf4 Qh5 no win with 27.-Bxh6 then.
Apr-20-17
Premium Chessgames Member
  whiteshark: Podz in action
Apr-20-17  swclark25: I was good through move 29)f6, but also missed 29)...Qxg3 like <morfishine> mentioned. Half credit?
Apr-20-17  beenthere240: <swclark25> Half credit is possible. Let's ask Chris Owen for his opinion. "Pang pug hulk hack plush pad hanky panky glad kup hang down park."

Okay?

Apr-20-17  morfishine: <swclark25: I was good through move 29)f6, but also missed 29)...Qxg3 like <morfishine> mentioned. Half credit?

In my world, full credit, since you had to see that 29...Rg8 fails to 30.Qh5#, so I figured Black resigned straight off instead of the delaying tactic

...and he has to resign anyways after 31.Qc7

*****

Apr-20-17  stst: Rxh6 or Bxh6?

Bxh6 got the adv. of threatening to push in the Q, whether gxB or not. If gxB, go also R-sac, RxP+ KxR, Qg5+ etc will prevail.

Rxh6+ will do it similarly, though g not taking but instead K flees will prolong the game.

Apr-20-17  butilikefur: <26. Bxh6 Qc3> 26...Rg8 (26...gxh6 27. Rxh6+ Kxh6 28. f6 Qe3+ 29. Kh2 Bxe4 30. Qg7+ Kh5 31. Rf5+ Bxf5 32. Bf3+ Qxf3 33. Qg5+ mate) 27. Bxg7 Qe3+ (27...Rxg7 28. Qh5+ Kg8 29. Rd8+ mate) 28. Kh2 Nc6 (otherwise White has 30. Qh5+ Kxg7 31. f6+ Kf8 32. Rd8+ mate) 29. f6 Qh6 30. h5 Ne7 31. Bxh6 Rxg4 32. fxe7 wins comfortably

<27. Bxg7 Qxg7 28. Qh5+ Kg8 29. Rh6 Re5 30. Rf4 Kf8 31. Rg4> wins

Apr-21-17  swclark25: Thanks for the full credit and reply <morfishine>. I was happy I got most of the moves.

Also, thanks for the much needed laughs from <beenthere240> and <chrisowen>. Couldn't have said it better myself!

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