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Gerd Lorenz vs Lutz Espig
Freiberg ch19-DDR (1970), Freiberg GDR, rd 14
Formation: King's Indian Attack (A07)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Jan-09-16
Premium Chessgames Member
  Penguincw: Me: I saw a Friday puzzle, so should reasonable come close to solving this Saturday puzzle.

(looks at Saturday puzzle): <Great>, all the pieces are still on the board, except that each side is missing a pawn.

Anyway, the solution I came up with was 23.Bxh6 gxh6 24.Nh5. Typical goal for me in mid/late week puzzles: get the correct sacrifice and capture, but have no idea why it was played.

Jan-09-16
Premium Chessgames Member
  al wazir: I didn't get it. I rejected 23. Bxh6 in favor of Ng5, which comes four moves later in the game as played.

But couldn't black have defended better with 24...Qd7/Qe7 ? After 25. Qxh6 Qg7 white has to retreat or swap the ♕.

Jan-09-16  diagonalley: ...wow!... cracked a saturday(!?) ... gotta go and lie down for a bit
Jan-09-16
Premium Chessgames Member
  al wazir: Nah, after 24...Qd7/Qd8, white plays 25. Nh5.
Jan-09-16
Premium Chessgames Member
  Penguincw: < Penguincw: Me: I saw a Friday puzzle, so should reasonable come close to solving this Saturday puzzle. >

Oops, I meant to say I "solved" a Friday puzzle.

Jan-09-16  jith1207: I got the idea of taking queen to h6. Then, unsure of how to proceed, I planned the idea of playing Ng5 but there I had a different idea of playing f6 supported by Knight, attacking queen and Rook while also taking another step towards the pawn-chain-submission of the enemy King. Not sure if that plan is sound enough, I need to check.
Jan-09-16  jith1207: I will have to admit I did not get all the defensive moves that Black could make and probably there are more than what I actually read into. As a typical Saturday, I was surprised I even came closer and my idea was born rather out of desperation than planning. Nevertheless, time to check and hope for Sympathetic Sunday tomorrow :-)
Jan-09-16  bjarvis: Got it! not just the first move.
Jan-09-16  patzer2: Went down in flames on today's Saturday puzzle with 23. Qd2? which loses to 23...Nxa2! 24. Rxa2 Nb3 25. Qf2 (25. Qe1 Rxc1 ) 25... Nxc1 26. Ra1 Qa5 27. Rb1 Rc6 28. Nh5 Qc7 (-2.65 @ 23 depth, Deep Fritz 15).

Correct of course is the game continuation with 23. Bxh6! preparing a mating attack by quickly sacrificing minor pieces like pawns, in order to tear open the closed position and take advantage of the under-protected Black King and his out-of-play defenders.

In the final position, Black resigns in lieu of 29. gxh7+ Qxh7 30. Nf6+ Rxf6 31. gxf6+ Kh8 32. Qg5 Nd7 33. Rh2 with mate-in-six to follow.

For an improvement for Black, I'd start with the opening and discard 6...Nf6 in favor of the popular move 6...e5 as in Kaufman vs Yermolinsky, 1996.

Later on it's more difficult to find improvements for Black. Initially the computers indicate 22...h6? is the losing move. However, the computer improvement 22...Qe8 still lands Black in hot water after 23. Nh5 Rc7 24. Bh6! Kh8 25. Qd2 (+1.88 @ 21 depth, Deep Fritz 15).

Jan-09-16  mel gibson: Correct of course is the game continuation with 23. Bxh6! preparing a mating attack by quickly sacrificing minor pieces like pawns, in order to tear open the closed position and take advantage of the under-protected Black King and his out-of-play defenders.

. Correct - it was a good finish.

Jan-09-16
Premium Chessgames Member
  agb2002: The material is identical.

The knight on b4 is defenseless althogh a piece capturing it, presumably the queen, could be exposed to a discovered attack by the dsb.

White can attack the black castle with a number of pieces starting with 23.Bxh6 gxh6 (else drop a pawn) 24.Qd2:

A) 24... Kg7 25.Nh5+ (probably better than 25.Qxb4 Nxd3 26.Nh5+ Kg8 27.Qd2 Nf4) 25... Kg8 (25... Kh8 26.Qxh6+ Kg8 27.Qg(h)7#) 26.Qxh6 looks winning. For example, 26... Qe7 27.g7 Rfd8 28.Nxf6+ Kf7 29.Qg6# or 26... Qc7 27.g7 Rfd8 28.Qh8+ Kf7 29.g8=Q+ Rxg8 30.Qh7+ Ke8 31.Rxg8+ Bf8 32.Nxf6+ Kd8 33.Rxf8#.

B) 24... Nc6 25.Qxh6 looks very good. For example, 25... Qc7 26.Nh5 Ra8 (26... Rfd8 27.Nxf6#; 26... Rf7 27.gxf7+ is crushing) 27.g7 Rfc8 28.Nxf6+ (or 28.Qh8+ as in A) 28... Kf7 29.Qg6+ Ke7 30.Nd5+ wins.

C) 24... Qc7 25.Nh5 (25.Qxh6 Qg7) followed by Qxh6 looks similar to previous lines.

That's all I can do today.

Jan-09-16
Premium Chessgames Member
  Willber G: <al wazir: But couldn't black have defended better with 24...Qd7/Qe7 ? After 25. Qxh6 Qg7 white has to retreat or swap the ♕.>

That's what I saw and couldn't get past it. I was surprised at 24...Rc7 in the game, looks wrong to me.

Jan-09-16  morfishine: Sac on <h6>: <23.Bxh6> followed by 23...gxh6 <24.Qd2> and Black can't play 24...Kg7 due to 25.Nh5+ so White breaks in after Black move with <25.Qxh6>

*****

Jan-09-16  BwanaVa: If black plays 24...Qd7/e7, white plays 25. Nh5 to cover g7, and only then follows with Qxh6.
Jan-09-16  Monocle: Looks like a King's Indian with colours reversed. Bxh6/Qd2 should be obvious to King's Indian players, I'd have thought.
Jan-09-16  Kasparov Fan: The kind of position where artistry prevails over concrete calculation. Bxh6 gxh6 and after Qd2 with an idea of transfering the queen to kingside is a correct and recurring idea in such positions. but after that visualization of the position fades away.
Jan-09-16  gofer: Black has such a miserable position. Ba6, Bd6, Nb4 and Nc5 are all muted, by either its own pawns or white pawns. On the other hand white has so many pieces attacking black's kingside that it is difficult to chose which to play first; Ng5, Nh5 and Bxh6. But for me Ng5 asks all the right questions of black's defences...

<23 Ng5! ...>

23 ... hxg5
24 Qh5 mating

23 ... fxg5
24 hxg5 (White threatens gxh5 and then hxg7! Not allowing this forces black to allow Bxh6 at which point Qh5 will cause mayhem!)

But the real question is how does black refuse Ng5?! What is the best defensive reply?

23 ... Nc6
24 Nf7!

23 ... Nd7
24 Nd6

23 ... Rc7
24 Nh7!

Perhaps the best is Qc7?

<23 ... Qc7>
<24 Qh5 ...>

White shows its hand, but is a royal flush! The knight is still immune and black's inability to defend is quite staggering...

That's enough guess work for now. With all but 2 pawns on the board there are too many permutations for me to really see the wood from the trees...

~~~

Hmmm, okay I made it too complicated... ...but like many I couldn't see how to get passed <23 Bxh6 gxh6 24 Qd2 Qd7 25 Qxh6 Qg7> at which point white's progress is quite slow. After white plays <23 Ng5>, white can still opt for Bxh6. I don't think Nxa2 is enough of a counter threat...

<23 Ng5 Nxa2>
<24 Nf7! ...>


click for larger view

...what does Fritz say about <23 Ng5>????

Jan-09-16  dfcx: I can see

23.Bxh6

A. 23...gxh6 24.Qd2 Qe7 25. Nh5 and black can't stop the king side attack of Q+R+N+P.

B. 23...Rc7 24.Bd2 and black has lost a pawn with weakened king side.

C. 23...Nbxd3 24.Bxd3 gxh6 25.Qd2 Nxd3 26.Qxd3 and black still can't stop Nh5 followed by Qd2

Jan-09-16
Premium Chessgames Member
  kevin86: White gives up two pieces and wins because black's pieces are ALL worthless!
Jan-09-16  devere: <gofer:>
On 23.Ng5 Black can make a game of it with fxg5 24.hxg5 N(c)xd3! 25. Bxd3 (f6 looks a bit better, but very complex) Rxc1 26. Rxc1 Qxg5. 23.Bxh6 looks like a more straightforward way to win.
Jan-09-16  BOSTER: <jith1207: I got the idea of taking queen to h6, my idea was born>.

I don't want to disappoint you.

But how I know this <idea was born> (maybe before) in the game Bronstein vs Keres,1955.

Look at this.


click for larger view

White to play.

After Bxh6 gxh6 Qd2-the white queen followed the bishop's route in penetrating to h6.

Jan-09-16
Premium Chessgames Member
  moronovich: <23.Bxh6 gxh6 24.Qd2 Rc7 bible achtung baby>

When Adolf plays Jesus it is seriuos bussiness.

Jan-09-16  Cheapo by the Dozen: All my ideas involved a slower attack, with White's queen getting to h6 via h5. Total whiff; see which weakness to attack was hardly an accomplishment in itself.
Jan-09-16  dark.horse: Not a bad deal:
Sac the bishop for two pawns and Black's position gets overrun with White pieces.

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