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Aleksandr Shimanov vs Andrey Vovk
Turkish Team Championship (2011), Konya TUR, rd 3, Jun-30
Hungarian Opening: Indian Defense (A00)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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Jan-21-21
Premium Chessgames Member
  OhioChessFan: Oh, that just leads to repetition of moves.
Jan-21-21  rbhgroup: <Cellist> Yes, so true... I feel a bit sad when, as happened with this puzzle, I get the first move quickly but then lose my way in the variations...
Jan-22-21  njchess: <Brenin> I agree that the moves are questionable, even blunders. In fact, one could argue that, given the game position, 27. ... ♕xc4! is a viable path for Black. That would leave White a Queen, a Rook and a Knight for the attack and a tough position to defend. Black would get a good pawn structure, a defendable king position, the open c-file and solid counter attacking chances.

While the transcript might be in error, I think the game play is probably more a product of an unfamiliar/complicated position for Black, Whites' attack and time control issues for both sides.

It's also interesting to note that White played 40. ♘h5+ at time control before settling on the winning move.

Feb-23-21  Walter Glattke: Jan 21 , 2021
Feb-23-21  stacase: I would have moved 44.Rf5. I don't see why Black resigns after 45.Qg7

I didn't figure out the first move a mere month ago. Maybe next month I'll come up with it all the way to the end (-:

Feb-23-21
Premium Chessgames Member
  agb2002: Level 2: 19.?
Ghitescu vs J H Donner, 1967


click for larger view

Feb-23-21  Brenin: Another recycling of a recent POTD, including the nonsensical moves 28, 29, 31 and 32, where the transcript is hard to believe. Both players are still alive, so it should be possible to sort out what really happened at that stage of the game.
Feb-23-21  saturn2: In<agb2002>'s puzzle I took 19.Bxf7+ Kxf7 20. Qc4+ Kf6 21. Ng5 Bf8 22. Nxh7+-  Ke7 (Qxh7 in the game) 23. Rfe1+ Ne5 24. Bg5
Feb-23-21  jffun1958: Thursday POTD last month, a Tuesday this time round.
Feb-23-21  Brenin: Nice puzzle, <agb2002>: the first two moves are easy to see, but the follow-up (21 Ng5 Bf8 22 Nxh7+ ) is harder.
Feb-23-21  mel gibson: I saw the first move but it got complicated after that.

After about an hour of processing
on an i7 quad core -
Stockfish 12 says White wins - mate in 35

42. Ne8+

(42. Ne8+ (♘f6-e8+
♖f8xe8 ♕g5-f6+ ♔g7-h6 ♕f6-f4+ ♔h6-h7 ♕f4xf7+ ♔h7-h6 ♕f7xe8 ♕b6xd4+ ♖f1-f2 ♕d4-e3 ♕e8-h8+ ♔h6-g5 ♕h8-f6+ ♔g5-h6 ♔g1-h2 ♔h6-h7 ♕f6-e7+ ♔h7-h6 ♕e7-f8+ ♔h6-g5 ♕f8-d8+ ♔g5-h6 ♕d8-h8+ ♔h6-g5 h3-h4+ ♔g5xg4 ♕h8xc8+ ♔g4xh4 ♕c8-h8+ ♔h4-g4 ♖f2-g2+ ♔g4-f3 ♕h8-h3+ ♔f3xe4 ♕h3-e6+ ♔e4-d4 ♕e6xd6+ ♔d4-c4 ♕d6-c6+ ♔c4-d4 ♖g2-g4+ ♔d4-d3 ♕c6xg6+ ♔d3-d2 ♖g4-g2+ ♕e3-e2 ♕g6-g5+ ♔d2-d1 ♖g2xe2 ♔d1xe2 ♕g5xa5 ♔e2-d2 ♕a5xb4+ ♔d2-c2 ♕b4-c3+ ♔c2-b1 b2-b4 ♔b1-a2 b4-b5 ♔a2-b1 b5-b6 ♔b1-a2 b6-b7 ♔a2-b1 b7-b8♕+ ♔b1-a2 ♕b8-b2+) +M35/51 1 hour)

Feb-23-21  TheaN: Didn't do this one in January so here I go: <42.Ne8+ Rxe8> alternatives lead to the same but worse after Qf6, given mate on g7. <43.Qf6+> and Black's losing the exchange with a horrible position forcefully. All but Kh6 run into Qxf7+, and <43....Kh6 44.Qf4+ g5 45.Qf6+ +-> and it follows regardless. What White played might be more practical but is not objectively better.
Feb-23-21
Premium Chessgames Member
  Sally Simpson: ***

The score of the game is obviously wrong (things are going astray on moves 27-31.) but I've just looked, these are the exact same moves from the official site.(game No. 196)

https://theweekinchess.com/chessnew...

So the fault is at their end.

***

Feb-23-21
Premium Chessgames Member
  chrisowen: Jailor i keyups Ne8+ hubbub abacus blacks aitchin asceticism keyins jailor rabble bereft watson donatello quicks divine quoshes mucky pygmalion cuppug guzzled its feebler keyson within matches keyson bones quicks kestrel discus plungy keysin qc4 finish aitchin muddle qb6 gonnas keyaid aitchin course method uncle it eme keysin knight plushy erstwhile kestrel addups hentup javelin fandango Ne8+ duckout;
Feb-23-21  1g1yy: Probably the biggest revelation I've had with these puzzles is how much I have yet to learn. I thought I had this, but when I looked at the game then, I was able to shoot holes in my line, so clearly that wasn't it.

However, even looking at the game line, I don't see why a continuation of Kxg5 isn't capable of slowing/stopping white's attack. I need to open dual windows and look at some of these lines people posted up. When they get really long, I am sometimes suspect of the forced nature of them, and can't help but think there's other sub-lines that might refute them.

It's incredible in this example, just how paralyzed black's queen is. It is several moves from any meaningful action. Lol.

Feb-23-21
Premium Chessgames Member
  chrisowen: Tao far gone unspoken no?
Feb-23-21  Diana Fernanda: Millions of games in the database but for some reason what escapes my poor reasoning, ends up publishing the same games of days gone by. Upgrade CG.
Feb-23-21  Brenin: <1g1yy>: Playing through the games and the kibitzed lines on CG is bound to improve your understanding of the game: it just requires patience. At the end of this game, if 45 ... Kxg5 then 46 Qf6+ forces 46 ... Kh5 or Kh6, and in either case 47 Rf4 threatens 48 Rh4 mate. After 46 ... Kh5 47 Rf4 Black's only reasonable defence is 47 ... Qxd4+ 48 Qxd4 Bxh3, and White has a huge material advantage. After 46 ... Kh6 47 Rf4 Black's best defence is 47 ... Qb5 48 Rh4+ Qh5 49 Rxh5+ Kxh5 50 Qxf7, and with an active Q against a poorly placed R+B and an exposed K, White will soon win, e.g. if 51 ... Rxe4?? then 52 Qf3+ wins the R.
Feb-23-21  1g1yy: <Playing through the games and the kibitzed lines on CG is bound to improve your understanding of the game: it just requires patience.>

I've been trying to stay patient. When I first found this site I actually got several of these in a row and was quite happy about it. Since, I don't think I've gotten one in the past 2 weeks. (Well, I got the 1 move ones they posted, but other'n that...) These last two from today and yesterday, there's no reason I didn't see them. I'm a bit disappointed in myself on that.

<At the end of this game, if 45 ... Kxg5 then 46 Qf6+ forces 46 ... Kh5 or Kh6, and in either case 47 Rf4 threatens 48 Rh4 mate. After 46 ... Kh5 47 Rf4 Black's only reasonable defence is 47 ... Qxd4+ 48 Qxd4 Bxh3, and White has a huge material advantage.>

I chose instead, Kh6 and after Rf4, Qb5. Now there's a defense, even if it does mean a Q for a rook, black is still a rook/bishop vs a lone queen with pawns, one pawn of which is hanging and in the crosshairs of the bishop. That said, black's pawns are not exactly positioned great either. I see you address that below. For a person at my level, I wouldn't yet consider a R/B vs Q endgame a lost cause. I actually won a game the other day with a B vs a R/B by passing pawns.

<After 46 ... Kh6 47 Rf4 Black's best defence is 47 ... Qb5 48 Rh4+ Qh5 49 Rxh5+ Kxh5 50 Qxf7, and with an active Q against a poorly placed R+B and an exposed K, White will soon win, e.g. if 51 ... Rxe4?? then 52 Qf3+ wins the R.>

Just saying, I'd probably continue it out a little farther before putting up the white flag. Not saying you're not correct, but there's a lot of places this could go.

I have to go look at other folks lines they posted. Maybe (likely), I'm missing an obvious and unstoppable continuation.

Thanks for posting the explanation. :)

Feb-23-21  mel gibson: <Feb-23-21 Diana Fernanda: Millions of games in the database but for some reason what escapes my poor reasoning, ends up publishing the same games of days gone by. Upgrade CG.>

I think the owner is often unwell but
he does his best.
He could however get one of us to do
the job for him on his off days?
I don't know what is going on but
I do enjoy this website.

Feb-23-21  Atking: A difficult one!;Qg7 isn't obvious at all.
Feb-23-21  Brenin: <1g1yy>: After 50 Qxf7 the continuation might be 50 ... Rh8 (the safest square for the R) 51 h4 (protecting the P, since 51 ... Kxh4 loses the R to 52 Qf6+, and threatening mate by 52 Qf6 and 53 Qg5) Kh6 52 Qf4+ Kg7 53 Qxd6, and White will advance the two connected passed pawns to promotion. Of course, 53 ... Rxh4? loses the R to 54 Qe7+. This line is fairly typical of what is likely to happen, whatever Black does. There are other situations where R+B are a match for a Q, or even better, but here they are so badly placed that Black's only hope of survival is a blunder by White.
Feb-23-21  sp12: How will the game proceed if 45.Qg7 Kh4?
Feb-24-21  Brenin: <sp12>: 45 ... Kh4 46 Kh2 Bxh3 47 Rf4+ Bg4 48 Qh6# or 47 ... Kxg5 48 Qf6+ Kh6 49 Rh4# (see earlier postings by <5hrsolver> and <Jimfromprovidence>).
Feb-26-21  sp12: 45..Kh4 46. Kh2 Kxg5??
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