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Vlastimil Hort vs Paul Georg Heilemann
corr 1.EU tt (1987), Endru
Spanish Game: Morphy Defense. Breyer Defense Zaitsev Hybrid (C95)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Dec-07-17
Premium Chessgames Member
  patzer2: For today's Thursday puzzle (32. ?), I successfully played guess-the-move against Black's stubborn resistance for the first seven moves of White's winning combination. However I deviated on the eighth move of the combination, which was also the last move of the game.

Instead of 38. Qxe5+ +- (mate-in-14, Stockfish 8 @ 38 ply), I picked the obstruction 38. Bc6 +- (mate-in-27, Stockfish 8 @ 27 ply) which also clearly wins.

P.S.: Black's game takes a turn for the worse with 24...bxa4? allowing 25. f4 =/- to +- (+1.71 @ 29 ply, Stockfish 8) with a strong attack against the weakly protected castled king.

Instead, 23...Rae8 = (-0.02 @ 27 ply, Stockfish 8) brings a piece of heavy artillery over to reinforce Black's Kingside and keep the position level.

Dec-07-17  stacase: 32.Nxf6 and White sacrifices the Knight for two Pawns and allows Her Ugliness to pay Black's King a social visit.
Dec-07-17
Premium Chessgames Member
  patzer2: Admittedly off topic, but according to a recent article at https://en.chessbase.com/post/the-f..., Stockfish 8 has been decisively beaten (28 wins, 72 draws and zero losses) by the revolutionary new program AlphaZero developed by Deep Mind-- a company founded by former Chess prodigy Demis Hassabis and owned by Google.

The program is said to have learned Chess from the basic moves, without any information about master games, opening theory, strategy or tactics. AlphaZero progressed enough in only 24 hours of computer self-play learning and improvement to being capable of decisively beating Stockfish 8.

Dec-07-17
Premium Chessgames Member
  gofer: Well, in truth I missed this one. I wanted to play <32 Nxf6>, so in that respect I was correct, but I missed best black's defence. I saw the queen check followed by Kh1, which didn't seem to achieve much. I didn't think there was a decent defence!

But, in hindsight, it was all very obvious... ...better luck tomorrow.

Dec-07-17  saturn2: Nxf6 cracks the nut.
Dec-07-17
Premium Chessgames Member
  Once: <Defiant Knight: Once you know there's a tactic>

I do indeed!

Dec-07-17  JonKing: Almost... I missed 35. Bxa4

Oh, the nice slow moves...

Dec-07-17  mel gibson: <Dec-07-17
Premium Chessgames Member patzer2: Admittedly off topic, but according to a recent article at https://en.chessbase.com/post/the-f..., Stockfish 8 has been decisively beaten (28 wins, 72 draws and zero losses) by the revolutionary new program AlphaZero developed by Deep Mind-- a company founded by former Chess prodigy Demis Hassabis and owned by Google.>

I don't know about that patzer.
I tried the position on that page which says

<In this position from Game 5 of the ten published, this position arose after move 20...Kh8. The completely disjointed array of Black’s pieces is striking, and AlphaZero came up with the fantastic 21.Bg5!! After analyzing it and the consequences, there is no question this is the killer move here, and while my laptop cannot produce 70 million positions per second, I gave it to Houdini 6.02 with 9 million positions per second. It analyzed it for one full hour and was unable to find 21.Bg5!!>

21.Bg5
and my computer -DR4 64 bit - did over 100 million board combinations to depth 21 & found only a draw -
not a killer move as described.

Dec-07-17
Premium Chessgames Member
  Dionysius1: Don't know that I like correspondence chess puzzles. They're as different from over the board as chess studies are.
Dec-07-17
Premium Chessgames Member
  whiteshark: According to CB Corr.Database this game has been played between

[Event "EU-chT1 fin 10 corr"]
[Site "ICCF corr"]
[Date "1978.??.??"]
<[White "Horton, Michael Howard"]

<[Black "Heilemann, Manfred"]>>

I think this needs further investigation - is there an ICCF crosstable?

Dec-07-17
Premium Chessgames Member
  patzer2: <mel Gibson> I see what you mean about that position. After 21. Bg5 f5 (diagram below)


click for larger view

I'm only getting a draw with Stockfish 8 (0.00 at 36 ply). Wonder if the position was set up correctly or if our programs are missing something.

Dec-07-17
Premium Chessgames Member
  malt: <32.N:f6> Q:b6+ 33.Kh1 R:f6 34.Q:g5+

32.R:f6 (could be a better,
stopping ...Qb6+ )32...N:f6 33.Q:g5+

Dec-07-17  NBZ: What's the finish? My thought is Kf7 d6 Qd8 Be8+!
Dec-07-17  mel gibson: <I'm only getting a draw with Stockfish 8 (0.00 at 36 ply). Wonder if the position was set up correctly or if our programs are missing something.>

Yes - something very wrong there.

Dec-07-17  weary willy: At the end, I thought ... Kf7, Bc6 - black loses a piece if Qd8
Dec-07-17  psmith: <patzer2>

I think you mean 37. Bc6, instead of 37. Qh5 -- not 38. Bc6, which allows Nxh5. right?

Dec-07-17
Premium Chessgames Member
  patzer2: <psmith> Thanks for the correction! What I meant to say was after correctly picking 32. Nxf6 and the next five moves, I deviated from the game on the seventh move of the combination with 37. Bc6 +- (mate-in-27, Stockfish 8).
Dec-07-17
Premium Chessgames Member
  chrisowen: Vis jrs f6s flubber vivas b6s bluffer vis its to 32...Kg6 dune hud guffegg vet tin vis 4 dun ever u h1s hog f6s fluffer lunk g5s gumegg f7s funeggs vet guff 34...Rg6 eel jug gutebbs vim 5 6 dun ever a4s aider vim f3s funs guv nub luv vis f3s feck u f6s fluffer lunk h5s huffle e7s eggshead eve ebberetc 38.Qxe5+ oble eggers 8 9 dun ever luv vis jrs f6s flubber fen mys vow v iffy malts ohs hog hip vis hob i lap vim blink vint kuz cog wcs quagmire vow vis it's vasts his not gantry vis it's vasts hints vivas flav goat hogan tis vis ghats ion gain host vim giant host vis nag hoist tangos hiv ago thins f6s flubber vim vis ruse raj jrs joffy fens nets vet vim men iffy mys vow malt talon late lao ahs hos ohs hip hoi vis plush pub blink u kind kuz duck cog wcs quagmire vow vis it's vasts his not gantry vis its to 32.Nxf6 Qb6+ doh von bluffer vet vis tink blush butch vows heeby jeeby hubby hull vent hell heel von guv help hulk held helm u f6s flubber fluffer flusher flutter flecker feudhug fetch buff fletch hug hung buff cuff duff guff huff muff nuff puff boot vow vet flush guff flesh flunks flecks vow luv fluffs duffs deffs vis its to 32...Kg6 dune hud guffegg vet tins 4 dun ever vis hud 33.Kh1 Rxf6 34.Qxg5+ muff gunegg fog guff 34...Kf7 eel jet funeggs guv nub vim guff 34...Rg6 eel jug guffegg 5 6 dun ever vis aider 35.Bxa4 Rxf3 36.Rxf3+ add feud cuff fly fluffs 36...Nf6 37.Qh5+ nut hut huffles eve egghead 37...Ke7 38.Qxe5+ oble eggers 8 9 dun ever vide pug peg hug guppy huv huh heh i ref vet jeer erstwhile eversnarc tree vent hes husk huss hues dutch heud duck deck hud dug clucky cucumbers huck heck vis chump chug checks ums aqua kong vow fancy eoyore ebullient has luv vis jrs f6s flubber;
Dec-07-17
Premium Chessgames Member
  kevin86: The key was to remove the pawn at f6
Dec-07-17
Premium Chessgames Member
  malt: 32.R:f6 prevents the black queen check (earlier post) 32...N:f6 33.Q:g5+ Kh8 34.N:f6 Rf7 35.Qh4+
Dec-07-17
Premium Chessgames Member
  agb2002: White is one pawn down.

The natural moves (destruction of defense) are Nxf6 and Rxf6. In the case of 32.Nxf6:

A) 32... Nxf6 33.Qxg5+

A.1) 33... Kf7 34.Rxf6+ Ke7 35.Qg7+ wins.

A.2) 33... Kh7 34.Rxf6 Rxf6 35.Rxf6 Qg7 36.Qh5+ Kg8 37.Rg6 wins decisive material.

A.3) 33... Kh8 34.Rxf6 Rxf6 35.Rxf6 as above.

B) 32... Rxf6 33.Qxg5+

B.1) 33... Rg6 34.Rf7+ and mate soon.

B.2) 33... Kf7(8) 34.Rxf6+ Nxf6 35.Rxf6+ Ke8 (35... Ke7 36.Qg7+ and 37.Rf8#) 36.Qg8+ Kd7 37.Qg7+ Kc8 38.Rf8+ wins decisive material.

B.3) 33... Kh7 34.Rxf6 Nxf6 35.Rxf6 transposes to A.2.

B.4) 33... Kh8 34.Rxf6 Nxf6 35.Rxf6 transposes to A.3.

C) 32... Kg6 33.Rxg3

C.1) 33... Nxf6 34.Qxg5+ Kh8 (34... Kf7 35.Qg7+ and 36.Qxc7; 34... Kh7 35.Qh4+ Nh5 36.Qxh5#) 35.Rxf6 wins (35... Rxf6 36.Qxf6+ Kh7 37.Qh4#).

C.2) 33... Rxf6 34.Qxg5+ as above.

D) 32... Kh6 33.Rxg3 Rg8 34.Nxg8 wins decisive material.

Dec-07-17  Patriot: <agb2002> You missed 32...Qb6+ too! That wasn't even on my radar this morning.
Dec-07-17  Henrychn: 37 Qh5+, Kg7. What is white's next move?
Dec-08-17  Henrychn: I got it. Rxg4+
Dec-08-17
Premium Chessgames Member
  agb2002: <Patriot: <agb2002> You missed 32...Qb6+ too!>

I saw it immediately the first time I looked at the diagram but I don't know why I forgot it a few hours later when I found the time to write my post.

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