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Jens Kristiansen vs Bo Jacobsen
Aarhus (1976), Aarhus DEN, rd 10, Apr-??
Modern Defense: Two Knights Variation (B06)  ·  1-0


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sac: 12.Bxf7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Jan-24-07  dakgootje: _O_

Very nice puzzle all in all!

Jan-24-07  Tactic101: Yeah. I saw the bishop sac and also the waiting move Qe6. The rest is kind of instinctive. Very good puzzle.
Premium Chessgames Member
  alphee: I got the first moves but nothing really good after 14.♕xf6+ as my continuation for Black was different: 12. ♗xf7+ ♔xf7 13. ♘xe5+ ♘xe5 14. ♕xf6+ ♔g8 15. ♕xe5 ♕c5 16. ♕xc5 ...and I didn't go any further. Obviously the first move had to be a check as the white queen was under attack and could not do much alone.
Jan-24-07  ianD: Not that dificult. Bxf7 is intuitively the right move which I spotted instantly. Took me a minute to confirm white is better in all lines.
Premium Chessgames Member
  KingV93: Bxf7+! My all time favorite move, it means you get to sit on the edge of your chair for the rest of the game ! :)
Jan-24-07  jaaron11: Great puzzle. A truly one-sided game. It's not often that you see a forced mate sequence starting at move 12.
Jan-24-07  chopin4525: Altough white has a huge advantage I don't think this is a forced mate because if you evaluate the position you'll see that after 12.Bxf7+,Kxf7 13.Nxe5+,Nxe5(even if white is still better black can hold the position for a while)14.Qxf6+,Kg8 15Qxe5,Qc5(Here I thought I got the solution but then I saw the game and I was doubtful so I analysed the position with deep junior 10 and I found that my line was the best,junior also continue as follows...) 16.Bf6,Qxe5 17.Bxe5,Bh6+ 18.Kb1,Be6 19.Bxh8 and now white is winning!What do you think?^_^
Premium Chessgames Member
  playground player: I'd still like to know what happens to players who get addicted to computer assistance and then have to play a game without it.
Premium Chessgames Member
  kevin86: <jaaron11> Early mate announcements are not rare at all. I have even seen a game with a mate announcement longer than the amount of moves played before it.

I answered only the first two moves of this one,but I think I could have come up with the rest. A whimsical finish with black's pieces forced to smother the king to "protect" him.

Jan-24-07  chopin4525: playground player: I'd still like to know what happens to players who get addicted to computer assistance and then have to play a game without it.

Altough I really appreciate your subtle irony have you ever heard with whom radjabov trains himself?No?I have pity on you :)

Premium Chessgames Member
  Tomlinsky: <I'd still like to know what happens to players who get addicted to computer assistance and then have to play a game without it.>

If they are not using their brains they will gain nothing. If they are using their brains they will improve. It's a limitless resource for refinement at a personal level or a crutch, there is a choice.

Jan-24-07  nimzo knight: 11..Bf8 is definitely a mistake. But what are other options of black, which white must evaluate before playing Qd6. I think 11.. Qb4 is a possibility. Of course main purpose of Qd6 is to stop black from castling.
Jan-24-07  jaaron11: <kevin86> True enough at the lower levels. I meant that it's rare to see a forced mate among players who are rated high enough for their games to be posted on this site.
Jan-24-07  Kruglov: <Marco65: c) 13...Ke8 14.Qe6+ Be7 [14...Kd8 15.Nf7+ Kc7 16.Bf4+ and mate] 15.Bxf6 Kd8 [15...Nxf6 or 15...Kf8 > or 15...Qd8 <16.Qf7#] 16.Rxd7+ and mate>

Good analysis, thanks. There are few more variations of this line. 16...Qc5 [16...Qb4 17.Na2 Qc5] 17.Nxd7 Bxd7 (forced, Queen is under attack and she has to protect e7) 18.Rxd7 and mate

Premium Chessgames Member
  YouRang: I pretty much got it. I've learned that f7 (or f2) is a perennial vulnerability in chess puzzles, so it was the first thing I looked at.

I did see that after
12. Bxf7+ Kxf7 (...Kd8? 13. Bxf6+ )
13. Nxe5+! Nxe5 (other moves lose to 14. Qe6, with multiple threats: Qf7#, Rxd7+, Nxd7, etc.)

White has sac'ed 2 pieces for two pawns plus attack, but white will now recover the pieces:

14. Qxf6 Kg8
15. Qxe5

And now white is up 2 pawns and still has a strong attack underway.

Premium Chessgames Member
  wals: Jens made it look so easy
Premium Chessgames Member
  fm avari viraf: A beautiful masterpiece from Jens.
Jan-24-07  DeepThought: There is no forced mate. Not in the next 30 moves!

Not after 13.. Nxe5 and not after 16..Kh6! Jacobson was feared and blundered high times.

Sure, White has gained a superior position and some material, but please stop telling me you saw a forced mate from move 12.Bxf7, because at that time, mate is 30 something moves away.

Premium Chessgames Member
  EmperorAtahualpa: What's interesting is that Bo Jacobsen, playing the Black pieces in this game, actually won the Danish national championship in the very same year!

So what a way to beat the national champion!

Premium Chessgames Member
  Themofro: Nice combination.
Jan-24-07  uuft: This is as Wednesday as it gets.
Jan-24-07  JohnNash: I agree with deep thought, that's the difference between human and computers, humans involve psychological aspect, computers only consider future moves, plies, depth. For me, this game only tells me one thing: whether winning or losing, always maintain a clear head
Jan-24-07  nimzo knight: What do computers recommend instead of 11.. Bf8 ?? Anyone .....
Premium Chessgames Member
  WannaBe: Shredder likes 11...Qb4
Jan-24-07  nimzo knight: Thats wht I thought. I dont who has the advantage after white exchange queens. Blacks rook will be on half open file
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