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Alexander Kotov vs Mikhail M Yudovich Sr.
Soviet Union (1939)
Queen's Gambit Declined: Ragozin Defense. Vienna Variation (D39)  ·  1-0

ANALYSIS [x]

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Given 8 times; par: 30 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jun-17-14  TheBish: White to play (20.?) "Easy"

20. Ng5! and Black must give up his queen for the knight to stop mate, but 20...Qxh6 21. Nxf7# would make a pretty picture -- a royal fork where the attack on the queen is circumstantial but trivial.

Jun-17-14  SimonWebbsTiger: @<hot logic>

Taking on c3 is well known theory. Only 11...Qxc4 is dubious. Better 11...gxf6 with unclear play.

Jun-17-14  Cheapo by the Dozen: <SimonWebbsTiger>, <hot logic>:

I don't see any immediate White wins after 11 ... gxf6 either. 12 Rc1 is a nice-looking move for White, but he is down a pawn, and I don't see a way to leverage the discovered attack on c8.

Jun-17-14
Premium Chessgames Member
  whiteshark: 20.Ng5 is sooo kowl
Jun-17-14  Caissas Clown: Good to see a Q sac , albeit a passive one without a forced re-capture , on a Tuesday.

It was easy to spot , but still far too pretty for a Monday ! CG realised that - bravo !

Jun-17-14
Premium Chessgames Member
  Once: The starting position for today's POTD makes it look as if neither player has quite got the hang of castling...
Jun-17-14
Premium Chessgames Member
  Penguincw: Alright! I got a Tuesday puzzle, but not a Monday puzzle. :| 20.Ng5 is the winning move, as if it's taken (20...Qxg5) then 21.Qxg5 leaves white up a queen for bishop and pawn (not to mention potential mate threats with a rook lift). If 20...Qxh6 then 21.Nxf7# 1-0 is a fork and mate. If black does nothing (ex. 20...Bd7) then 21.Nxf7# 1-0 wins anyway.
Jun-17-14
Premium Chessgames Member
  gawain: 20 Ng5 is the surprising winning move. The threat is Nxf7#--and Black cannot meet this threat without surrendering his queen or allowing an alternative mate. Nifty.
Jun-17-14  Herma48852: 20. Ng5! Black must give up his queen for the knight or get mated with Nxf7. Moving his rook to f8 allows Qg7 mate.
Jun-17-14
Premium Chessgames Member
  patzer2: Our Tuesday solution 20. Ng5! creates an unstoppable dual mate threat (e.g. 20...Qxg5 21. Qg7# or 20...Qxh6 21. Nxf7#).

I suppose 20. Ng5! could be classified as a double attack tactic. Yet as double attacks go, this one is a bit unusual since it involves two different pieces threatening separate mates on different squares.

Jun-17-14
Premium Chessgames Member
  kevin86: White leaves his queen en prise by 20 ♘g5, but it is black who must lose HIS queen. If black moves the rook to create an escape square, ♕g7# and if ♕xh6 (the text, ♘f7#)
Jun-17-14  Amarande: This pattern is critical and generally winning almost no matter where the Black Queen is. Ng5 would always win.

For instance, with the Black Queen at f8 (which seems more favourable than here), 20 Ng5 and Black still succumbs: 20 ... Rg7 (again the Queen cannot be taken because of mate on f7) 21 Rd1!! (even stronger than just winning the Rook) and Black can still give up as he will be a Rook and Bishop down.

Jun-17-14
Premium Chessgames Member
  heuristic: isn't the losing move 17...Qd5?

the Q has to get to f8 (the h6 WQ) or to b2 (the f6 WP) to defend adequately.

17...Qb4 18.Qh6 Rg8 19.Nf3 Qb2

Jun-17-14
Premium Chessgames Member
  LucB: Man, I'd love to end a game this way!
Jun-17-14  Chess Dad: I'm sure move 20 is Ng5, but I'm not sure what black is going to do about it. If he responds 20... Qxh6, then 21. Nxf7#

If he responds with either Rf8 or Rg7, then 21. QxR#.

And if he responds with Qxg5, then 21. Qxg5 winning.

I don't see anything else for Black.

Jun-17-14  Balcacer: More o less : This is what Holand did to Spain in Brasil 2014, first match.
Jun-17-14  BOSTER: <Amarande: no matter where the black Queen is Ng5 always win>. Try Qb2.
Jun-17-14  BOSTER: <heutistic:the Q has to get to f8> this is wrong, <or to b2>. This is correct.
Jun-17-14  BOSTER: <SimonWebbsTiger: Only 11...Qxc4 is dibious>. But the Q. is: can Black get away with it?
Jun-17-14  SimonWebbsTiger: @<boster>

not really. Black is simply asking for it because 12. Kg1 obviously threatens Ra1-c1. Black's king will never be safe.

Jun-17-14
Premium Chessgames Member
  numbersguy70: Black needed Qb4-Rg8-Qb2 after 17.Rc1. Even then, Fritz gives white a slight edge while a pawn down.
Jun-17-14  dzechiel: White to move (20?). Black is up a pawn. "Easy."

There's lots to look at, but white wins after...

20 Ng5

Threatening 21 Nxf7#. The only good way to stop checkmate is

20...Qxg5 21 Qxg5

giving up a queen for a knight (yeah, it's not very good after all).

Time to check.

May-13-17  zanzibar: OK, I'm suspicious of this game.

First - the game continues to mate. I would have guessed Yudovich would resign after 20.Ng5.

Second - neither <CT> nor <RUSbase> have this game.

So, what's the source of the game, where exactly was it played, and when?

.

May-13-17
Premium Chessgames Member
  Retireborn: <z> I think it's just a possible variation from this game:-

Kotov vs M Yudovich Sr., 1939

I actually have this analysis up to 21.Nxf7 in my own database, but I can't recall now what book I go it from - probably one of those collections of combinations etc

May-13-17  zanzibar: <RB> you're a step ahead of me; I was just posting on intuition.

I thought about comparing the games, but missed the connection.

This is just a fake game, in that case, and probably should be removed from <CG>.

Perhaps added as an analysis branch in the real game.

.

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