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Nils Michaelsen vs Etienne Bacrot
Bundesliga (1999/00), Porz GER, rd 14
Gruenfeld Defense: Exchange Variation (D85)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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Dec-05-07  RandomVisitor: 38...Nf6 would have been better play for black:


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Rybkav2.3.2a.x64:
(17-ply)
1. (-1.05): 39.Qg7+ Ke8 40.Bc1 Qc4 41.Qh8+ Kd7 42.Qa8 Qxe4 43.Qa6 Ke8 44.f3 Qd5 45.Nd2 Kf7

2. (-1.11): 39.Bd2 Bf8 40.c4 Qe8 41.Bc3 Ke6 42.Nd2 Bxh6 43.Qxe8+ Nxe8 44.Kf1 Nf6

Dec-05-07  newzild: It took me 2.5 minutes to get this one. Very good puzzle, because the answer is a clear win.
Dec-05-07  newzild: By the way, I have never been to Denver, although I've been to the US four times (always just passing through to Canada or Mexico). However, I used to be fond of the Denver Burger served by a certain fast-food joint in Hamilton, New Zealand.
Dec-05-07  erad1288: I got Qa6 alright but the reason I wanted to play it was to keep the king from escaping via f1 and to play 2.Qa1 with mate (oops)(dumb knight) but I had the idea that if white tried to stop the mate then I would play Bd8 winning the queen. Well my reasoning was wrong but the right move came out nevertheless. I guess that's what you call puzzle luck.
Dec-05-07  sfm: Hmm. Spent a full couple of minutes figuring this one out, which makes me wonder if I am getting old and really would have overlooked it in a game. Denver? USA? No, and should I against my consciousness decide to spend tourist money on supporting a murderous regime I'd rather go to Burma.
Dec-05-07  awfulhangover: I took 5-10 minutes on this. I'm ashamed of myself, coz I got the right idea, trapping the quuen, at once. Looked for Bd8 etc first. Maybe "silent" moves are harder too see.
Dec-05-07  Cuellargacharna: Excellent demostration of board positional awareness.
Dec-05-07
Premium Chessgames Member
  moronovich: Been to many places, but never to Denver.
And I will tell that to my shrink.
(And ask him about Denver).
Dec-05-07  MaxxLange: Easy enough to find when you see it as a puzzle; much harder to see over the board, I'm sure.
Dec-05-07  zanshin: I saw Bd8 but didn't think of trapping the Queen.

I like the music of John Denver.

Dec-05-07  znprdx: Seems like a fluke, given that 41.Qc7 was probably played in a time control scramble....Pretty cute not unlike what Judit Polgar recently did to Topalov (or rather like here what he did to himself) <sataranj: i think, after 38.Qh8, black should have immediately taken the bishop.> & <RandomVisitor: 38...Nf6 would have been better play for black:> Sheesh - and miss the chance to find this swindle while singing "queen traps always make me happy" Apologies to both John Denver & Tarrasch:)
Dec-05-07  YouRang: I was in Denver in 1991 (on my way to Boulder, CO - also a very nice town).

I blew today's puzzle, so I am left out of the "Here's how I solved it" discussions. But at least I can join the "I've been to Denver" people!

Dec-05-07  zhivago: I also looked at 42 Qa2 for too long! I didn't have breakfast yet, so I took a break and had a Denver omelet! After that, I got 42 Qa6! immediately.
Dec-05-07  soberknight: Wow, I completely missed the queen trap. It's beautiful.
Dec-05-07  dazone3: I successfully drove through Denver during the summer flood of 1997, and successfully solved this puzzle in the winter blizzard of 2007!

I also drove through Denver during the spring blizzard of 2003, just before said murderous regime invaded Iraq. I'm guessing that will help me out on some future puzzle, possibly during a flood in the Fall of 2013.

Dec-05-07
Premium Chessgames Member
  Jimfromprovidence: I also looked at Qa2 too long.

After I looked at the game I noticed that white played Nh2 one move too early (to keep the queen off of g4 I guess. f3 would have done the same thing). If white had simply played 41 Qc7+, then 42 Kf7 Nh2 he probably would have been OK.

As a grad student at UC-Santa Barbara in the early 80’s, I flew through Denver many times to get back to the East Coast. There’s nothing like flying over the Rockies, except for maybe solving a weekend puzzle.

Dec-05-07  patzer2: For today's puzzle solution Bacrot closes the trap on his opponent's Queen with 42...Qa6!, leaving White helpless against the coming 43...Bd8 .
Dec-05-07
Premium Chessgames Member
  kevin86: Missed it-what a week! I was looking at a back row mate-(I know,the pun was used before). Then I looked at a possible zugzwang-an overall lack of mobility by white's forces. I just didn't focus on the queen.

I too was looking at Qa2 in an attempt to trap the bishop,I didn't even see the text move that traps the queen in a hotbox so that she can be captured.

It seemed that last weeks puzzles were too easy,these may be too hard.

Dec-05-07
Premium Chessgames Member
  HFlew: Whoo hoo! I got it! :)
Dec-05-07
Premium Chessgames Member
  fm avari viraf: Hi- everyone. Due to my very busy schedule, I couldn't post my views for all this time but occasionally I used to have a quick glance at your lovely analysis which I did enjoyed. Still my Academy has to conduct three more Championships on 15th & 16th Dec.07 so again I'm in a tied knot. Now, back to our puzzle, to be candid, first, I saw 42...Bg5 & 42...Qc4 but White seems to be alright. Then suddenly,I saw the dreadful 42...Qa6 trapping the White Queen with ...Bd8! Hence, my pun "Nils scores Nil."
Dec-05-07  TheaN: 3/3

42....Qa6 with Bd8. How strange it seems, yesterday had some variation, today there just isn't one: Black WILL play 43....Bd8 no matter what.

Dec-05-07  ruzon: It is so beautifully random (or randomly beautiful) that two pawns, a Queen, a Knight, a Bishop, and a King can be placed on the board in such way not only to trap the Queen, but to give White one whole move without direct threats and <still> not be able to rescue it despite having even material.
Dec-05-07
Premium Chessgames Member
  Jimfromprovidence: <If white had simply played 41 Qc7+, then 42 Kf7 Nh2 he probably would have been OK.>

Correction of above post.

If white had simply played 42 Qc7+, then 42... Kf7 43 Nh2 he probably would have been OK.

Dec-05-07
Premium Chessgames Member
  howardb86: I did not get it....
going to retire from chess.
So beautiful, why did I not see it?
going to give up chess
Dec-05-07  crazydotaplayer: hi,i got this in a minute and i want to know how can i check my rating?
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