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Meir Romm vs Stefano Tatai
Netanya (1973)
French Defense: Winawer. Classical Variation (C18)  ·  1-0
ANALYSIS [x]

FEN COPIED

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sac: 23.Qxh6+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Nov-29-03  Bears092: whoa
Nov-29-03  Qian: Nxh5!! whoa!! if exh5 then mate in 3... wow.
Nov-29-03  DWINS: Nice game but Romm didn't followup correctly. It took some bad moves at the end by Tatai for him to score the point.

He should have played 25.Nxg7 instead of Nd6. Black is very close to being mated. The threat of 26.Bf7 followed by f4+ is very hard to deal with. As a matter of fact, I don't see a defense. Anybody out there see one?

Nov-29-03  euripides: 25 Nxg7 Kh6 26 Bf7+ Kxg7 or 26 Nf5 exf5 and I think Black wins.
Nov-29-03
Premium Chessgames Member
  crafty: 25. ♘xg7 ♘g6 26. f4+ ♔h6 27. ♘xe6 ♔h7 28. ♗xg6+   (eval 6.36; depth 16 ply; 750M nodes)
Nov-29-03  dorn: <euripides> After 25.Nxg7! Kh6 26.Nxe6! and now:

26...Qxe6 27.Bg4+ Kg7 28.Bxe6 with an easy win for White or:

26...Ng6 27.Bf3+ Nh4+ 28.Rxh4+ Kg6 29.Rg4+ Kf7 30.Rg7+ Kxe6 31.Bg4#

Nov-29-03  dorn: <DWINS> I think White was surprised with 24...Kg5! and played a weak 25.Nd6? after which he shouldn't win.
Nov-29-03
Premium Chessgames Member
  talchess2003: I saw Nxh5 and that mate in three... but did chessgames.com really expect us to calculate out the win after Kg5??!! Furthermore, I do not believe that white has a forced win after Kg5.
Nov-29-03  TheAussiePatzer: I didn't see what happened after the 23rd text move (though neither did Romm). I was analysing 23. Ng6 which is interesting as the Knight cannot be taken:

23.Ng6 Rxg6 24.Bxg6+ Kxg6 (24...Nxg6 25.Qxh6+) 25.Qxh6+ Kf7 26.Qf6+ Ke8 27.Rh8+

or

23. Ng6 Nxg6 24.Qxh6+ Kxh6 25.Be2+ Nh4+ 26.Rxh4+ Kg6 27.Bh5+ Kg5 28.f4+ Kh6 29.Bf7#

However black has one saving move, 23...Ng8, which leads to white's attack fizzling out.

Nov-29-03  cVeggyman: talchess: I hope they (chessgames.com) continue to put out difficult chess puzzles. It is good to have once in a while a difficult one to calculate. The easier ones are just simple rote motion to solve and are boring sometimes.
Nov-29-03  raylopez99: I think black blundered after 35...a5??, which leads to a mate in two. Better is to fight on a pawn down with 35...Rf7.

Interestingly, I saw the move 23. Qxh6, only because I only saw the forced mate line and because this was a problem, so I figured a queen sac was perhaps involved. Sometimes even a patzer (Class A patzer for me) can blunder into victory!

Nov-29-03  ellipotrix: Yes i think Chessgames.com expected you to solve this one!! Why did you not expect to solve it? It becomes a little less difficult when you know there is a solution.
Jan-21-18  mel gibson: I wasn't sure what to play.

Stockfish 8 says:

23. Qxh6+ (23. Qxh6+ (♕f4xh6+ ♔h7xh6 ♘h4xf5+ ♔h6-g5 ♘f5xg7 ♔g5-h6 ♘g7xe6 ♕c8xe6 ♗h5-f7+ ♔h6-g7 ♗f7xe6 ♘c6-d8 ♗e6-g4 ♘d8-f7 f2-f4 a7-a6 f4-f5 ♘e7-g8 f5-f6+ ♘g8xf6 e5xf6+ ♔g7xf6 ♖a1-f1+ ♔f6-g7 ♗g4-e6 ♘f7-g5 ♗e6xd5 ♖a8-d8 ♗d5xc4 b6-b5 a4xb5 a6xb5 ♗c4xb5 ♘g5-e4 ♖h1-h4 ♘e4-f6 c3-c4 ♖d8-b8 ♖h4-f4 ♖b8-b6 ♔g2-f3 ♖b6-b8 ♖f1-a1 ♖b8-b6 ♖a1-b1 ♖b6-b7 d4-d5 ♖b7-b8 d5-d6 ♖b8-h8 c4-c5 ♘f6-d5) +12.05/37 104)

score for White +12.05 depth 37.

However.

White made a weak move on 25 which gives
much better odds for Black:

25. Nd6 Ng6 (25. .. Ng6 (♘e7-g6 ♘d6xc8 ♖a8xc8 f2-f4+ ♘g6xf4+ g3xf4+ ♔g5xf4+ ♔g2-f2 ♘c6xe5 ♖a1-f1 ♖g7-g3 ♔f2-e2+ ♔f4-g5 d4xe5 ♖c8-h8 ♗h5-f7 ♖h8xh1 ♖f1xh1 ♖g3xc3 ♔e2-d2 ♖c3-g3 ♗f7xe6 ♔g5-f4 ♗e6xd5 c4-c3+ ♔d2-e2 ♔f4xe5 ♖h1-h5+ ♔e5-d4 ♗d5-b3 ♖g3-g6 ♖h5-d5+ ♔d4-e4 ♖d5-d3 ♖g6-g2+ ♔e2-e1 ♖g2-g5 ♖d3xc3 b6-b5 a4xb5 ♖g5xb5 ♔e1-d2 a7-a5 ♖c3-c6 ♔e4-d4 ♖c6-c7 ♖b5-b8 ♖c7-h7 ♔d4-e5 ♖h7-h5+ ♔e5-e4) -2.87/35 65)

score for Black -2.87 depth 35

Jan-21-18
Premium Chessgames Member
  ChessHigherCat: I forgot to give the first move: 23. Qxh6+ Kxh6 24. Nxf5+ Nxf5 (or exf5) 25. Bf7 + but anyway I miscalculated because I thought it was mate but black has Kg5 and it looks like one of those long drawn-out end games with a minor advantage rather than a nice neat puzzle-type puzzle.
Jan-21-18  raju17: The matter is to see the positional advantage and white has never allowed black to have it. 24...Kg5 was one alternative and the other alternatives to capture the Knight at f5 were no good either.
Jan-21-18
Premium Chessgames Member
  gofer: Okay, I reeallly want to play the queen sacrifice, it looks pretty sound. I have both rooks pretty active and it looks like the very minimum it does is lose my queen for a rook and pawn... ...but it seems to do a lot more...

<23 Qxh6+ ...>

23 ... Kg8?
24 Nf3 +-

<23 ... Kxh6>
<24 Nxf5+ ...>

24 ... Kh7
25 Bf7#

24 ... exf5
25 Bf7+ Kg5
26 f4+ Kg4
27 Bh5#

24 ... Nxf5
25 Bf7+ Nh5
26 Rxh5+ Kg5
27 f4#

<24 ... Kg5>
<25 Nxg7 ...>

Okay, one huge, massive, enormous <GOOT>, we have sacrificed our queen for a pawn and a rook, to get the black king into a very nasty position. The point being that black's only escape route is via h6 which creates a self-imposed discovered check and when we play Nxe6, if the black queen re-captures on e6, the discovered check wins back the queen!

The main question "I am I right or am I wrong?!"

~~~

Hmmm, <melgibson>'s stockfish seems to agree...

It would fun to play it anyway!

Jan-21-18  Walter Glattke: I realized, that 24.Nxf5+ Nxf5 gets mate with 25.Bf7+ Kg5 26.f4+ Kg4 27.Bh5#
Jan-21-18
Premium Chessgames Member
  rodchuck: I would have thought that 30. ...Nxe5. 31.dxe5 Kxe5 would have given black a fighting chance with 2 connected pawns against the bishop
Jan-21-18
Premium Chessgames Member
  agb2002: White has a bishop for a knight.

The rook on h1 x-rays the black king. This suggests 23.Qxh6+:

A) 23... Kxh6 24.Nxf5+

A.1) 24... Nxf5 25.Bf7+ Nh4 26.Rxh4+ Kg5 27.Rh5+ Kg4 28.f3#.

A.2) 24... exf5 25.Bf7+ and mate in two.

A.3) 24... Kh7 25.Bf7#.

A.4) 24... Kg5 25.Nxg7 (25.f4+ Kxf5 26.Kf3 Qg8 27.Rag1 Rg4)

A.4.a) 25... Kh6 26.Nxe6 Ng6 (26... Qxe6 27.Bf7+ wins decisive material) 27.Bg4+ Nh4 28.Rxh4+ Kg6 29.Nxf4+ followed by Bxc8 wins.

A.4.b) 25... Qg8 26.f4+ Kh6 27.Nxe6 Ng6 28.Bg4+ Nh4 29.Rxh4+ Kg6 30.f5+ Kf7 31.Rah1 + - [R+B+3P vs q] and the threat Rh7+.

A.4.c) 25... Nd8 26.f4+ Kh6 27.Ne8 and White looks winning due to the threat Bf7+.

A.4.d) 25... Nxd4(e5) doesn't seem to solve anything for Black.

A.4.e) 25... Ng6 26.f4+

A.4.e.i) 26... Kh6 27.Nxe6 Kh7 28.f5 Kg8 29.Bxg6 + - [R+B+3P vs q].

A.4.e.ii) 26... Nxf4 27.gxf4+ and White recovers nearly all the material while the Black is still exposed. For example, 27... Kh6 28.Ne8 Qxe8 (due to Bf7#) 29.Bxe8+ Kg7 30.Bxc6 + - [B+2P].

B) 23... Kg8 28.Ng6 wins a pawn and looks winning (28.... Rh7 29.Bxe7+ Nxe7 30.Bf7+).

Jan-21-18
Premium Chessgames Member
  malt: Attracting the king to h6 <23.Q:h6> the Bishop and rook work together, once the knight has cleared the h file <23...K:h6 24.Nf5+ Kg5>

(24...N:f5 25.Bf7+ Kg5 26.f4+ Kg4 27.Bh5# )
(24...ef5 25.Bf7+ Kg5 26.f4+ Kg4 27.Rh4# )
<25.Nd6 Ng6 26.N:c8>

Jan-21-18
Premium Chessgames Member
  DarthStapler: I got the first two moves
Jan-21-18
Premium Chessgames Member
  wtpy: I completely missed it. Tried to make Bf7 followed by Nf3 work but that only yields small advantage.
Jan-21-18
Premium Chessgames Member
  Richard Taylor: I found the first few moves but didn't analyse the lines as played. But Black is forced to give back his Q so that was the critical line other wise it is a forced mate or he has a Q on h6 which is winning easily.

Great play by Romm!

Jan-22-18  5hrsolver: I thought 23.Bg6+ also wins and was easier to play.

23. Bg6+ Nxg6 24. Qxh6+ Kxh6 25. Nxf5+ Kg5 26. f4+ Kxf5 27. Rh5+ Kg4 28. Rg5#

Of course there are other lines here too but white would get a very good position at least.

Jan-22-18  WorstPlayerEver: <5hrsolver>

23. Bg6+ Nxg6 24. Qxh6+ Kxh6 25. Nxf5+ Kg5 26. f4+ Nxf4+

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