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Jorgen Henseler vs David Klein
"Klein Battle" (game of the day Dec-12-2018)
15th Unive Open (2011), Hoogeveen NED, rd 1, Oct-14
Nimzo-Indian Defense: Kmoch Variation (E20)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Oct-19-11  tonsillolith: Then what? I don't get it.

What happens if White takes the knight?

Oct-19-11
Premium Chessgames Member
  Phony Benoni: <tonsillolith>: After <29.Bxc4 Bxc4>:


click for larger view

White's ♖a2 and ♕ are forked while the ♘g1 remains under attack. Black wins the exchange after 30.Qxc4 Rxf2, and cleans up after 30.Qe1 Bxa2+.

If White tries to get two rooks for the queen with 30.Rxg2 Bxe2 31.Rxg8, then 31...Qe1+ leads to a quick win: 32.Kc2 Qd1+ 33.Kb2 Qd2+ 34.Kb3 (34.Ka1 Qc1# or 34.Ka3 Qxc3#) c4+ 35.Kb4 Qxa2.

Oct-21-11  tonsillolith: Ah thank you. It seems the major thing I missed was inserting the queen check on e1 in between rook captures, so that the king must block the protection of the rook.

I should try not to be so stupid.

Sep-30-14
Premium Chessgames Member
  FSR: Klein Battle.
Dec-12-18
Premium Chessgames Member
  OhioChessFan: I guess I learned something when I tried to figure out the pun.

<The name "bottle" seems to come from a translator's error who mistook the German "kleinsche Fläche" (Klein surface) for "kleinsche Flasche" (Klein bottle)>

Dec-12-18  nalinw: Black got into White's "inside" by making a "tunnel" on the king side .... Chess and Topology ... good one FSR
Dec-12-18  SeanAzarin: I must be suffering from chess-blindness, because I don't see what's wrong with 29 RxR.
Dec-12-18  scormus: great pun <FSR> well spotted <nalinw>
Dec-12-18  Swampy: A Klein Bottle is a well known three dimensional mathematical object with only one surface. It is like a Möbius strip, which is the two dimensional version.
Dec-12-18
Premium Chessgames Member
  OhioChessFan: <Sean> if 29. Rxg2 Rxg2 and the White Queen is in trouble. eg 29. Rxg2 Rxg2 30. Qxg2 Qe1+ 31. Kc2 Ne3+ 32. Kb3 Nxg2 33. Rxg2 Bxd3 and it's over.


click for larger view

Dec-12-18  newzild: <<SeanAzarin:> I must be suffering from chess-blindness, because I don't see what's wrong with 29 RxR.>

29. Rxg2 Rxg2
30. Qxg2 Qe1+
31. Kc2 Ne3+

Followed by 32. Nxg2

Dec-12-18  Ironmanth: Wow. Had to look at the comments myself to see the reason for resignation here. More coffee, PLEASE! Thanks, chessgames. Happy, safe, and blessed holidays to all readers. :)
Dec-12-18
Premium Chessgames Member
  catlover: White was indeed bottled up.

When it became apparent that Klein was going to attack along the g-file, at least Henseler had the sense to move his king to the queen side.

Not that it did the poor guy any good.

Dec-12-18  cormier: J Henseler vs D Klein, 2011
Dec-12-18
Premium Chessgames Member
  ajk68: <When it became apparent that Klein was going to attack along the g-file, at least Henseler had the sense to move his king to the queen side.>

No. That was just wasting time. It was too slow. He needed to get his attack going on the queen-side.

Too many king and knight moves while black just lined up an attack.

Dec-12-18
Premium Chessgames Member
  Breunor: Some very good puns in a row now!

Stockfish doesn't like the white king walk to the queenside, it keeps lowering the score as the king moves.

So for instance, after 15 ... 0-0-0,

the computer scores it as :

1) +0.57 (22 ply) 16.a5 Nxa5 17.Rb1 Nh5 18.Ra3 Qc7 19.Nf2 Bb7 20.Qb2 Ba6 21.Qa2 Bb7 22.Bc2 Kb8 23.Nd3 Nf6 24.Bf2 g5 25.Ba4 Rhg8 26.Bb5

But after the game move:

1) -0.26 (20 ply) 16...g5 17.a5 Nxa5 18.Kg1 Nh5 19.Rfa1 Bb7 20.Rxa5 bxa5 21.Rxa5 a6 22.Nf2 Nf4 23.Qb2 h5 24.g3 Qc7 25.Qa2 Nxd3 26.Nxd3 Qe7 27.Nf2

Dropping abut 1 point. Stockfish keeps trying to get white to move the king back to the kingside.

Dec-13-18  Horace Morris: Hello everyone. I'm a total novice and this is my first post so please go easy on me!

I did manage to figure out how black finishes if white plays the moves that have already been mentioned in previous posts but can someone describe how black would have dealt with 29.Qe1 ?

Cheers!

Dec-13-18
Premium Chessgames Member
  ChessHigherCat: Welcome Horace! 29. Qe1 Rxg1! 30.Bf1 (if Rf1 than QxQ wins another rook) Ne3 31.Kb2 Bxf1 32.Rxf1 Qxe1 and there's no immediate mate but black has such a material advantage that it's only a question of time.
Dec-13-18  Horace Morris: <ChessHigherCat> Thanks for the reply and the welcome.

I'm glad you said there's no immediate mate and it's only a matter of time because I was trying to figure out if I was missing a swifter, more elegant resolution that black would have used against 29. Qe1, as opposed to my own somewhat unsophisticated, blood-all-over-the-chessboard, turkey-shoot approach!

After quite a few fairly clumsy tries, I did finally manage to reach mate on the 35th move and I think that's about as good as I'm capable of. Thanks again for the feedback. :)

Dec-13-18  Saniyat24: Henseler's King took a fancy on Klein's queen-knight...!
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December 12: Klein Battle
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