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Lars Bo Hansen vs Giovanni Vescovi
Copenhagen op17 (1995), Copenhagen DEN, rd 4
Benoni Defense: General (A43)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Apr-15-12  Rio Mike: This game should be classified as Colle System (D05)
Jun-14-14
Premium Chessgames Member
  fm avari viraf: You are right baby [Rio Mike]
Nov-12-16
Premium Chessgames Member
  whiteshark: The ECO designation for the game is still wrong

*

Nov-28-18  ChessHigherCat: There's probably better but I'm guessing: 19. Rxh7+ Kxh7 20. Ng5+ Kh8 21. Qxg6 Nf8 22. Nf7+ Qxf7 23. Qxf7

I left out the pointless Bxh2+ Kh1 Bxg2+ Kxg2 intermezzi

Nov-28-18  Fish55: 19.Rxh7+, Kxh7 20.Ng5+, Kh8 21.Qh3+ mates.
Nov-28-18  ChessHigherCat: SF gives my line +1.53 but I missed the immediately crushing 21. Qh3+ (shucks fellers)
Nov-28-18
Premium Chessgames Member
  Elrathia Kingi: 19...Kxh7 20. Ng5+ and mates:
21... Kg7 22.Qf7 then Qh7#
21... Kh8 (or Kh6) 22.Qh3+ Kg7 23.Qh7 Kf6 (or. Kf8) 24.Qf7#.
Nov-28-18  Prosperus: 19. Bh6+!? Kh8 20. Qf7 Rg8 21. Qxh7+! Kxh7 22. Bf8#
Nov-28-18
Premium Chessgames Member
  Cheapo by the Dozen: I probably made this harder than it needed to be. I saw <Prosperous>' line instantly, but incorrectly thought that ... Nf8 defended successfully; i.e., I overlooked the BISHOP mate on g7. Eventually I decided to look at checks only, at which point there were so few alternatives the game line quickly stood out.
Nov-28-18
Premium Chessgames Member
  agb2002: White has two pawns for a bishop.

White can resume the attack with 19.Rxh7+ Kxh7 (19... Kf8 20.Qf7#) 20.Ng5+:

A) 20... Kg7 21.Qf7+ Kh6(8) 22.Qh7#.

B) 20... Kh6 21.Qh3+ Kg7 22.Qh7+ Kf6(8) 23.Qf7#.

C) 20... Kh8 21.Qh3+ and mate in two as above.

Nov-28-18
Premium Chessgames Member
  agb2002: I also saw Prosperus' line but found the defense 20... Bf8 so the line with Qh3+ is far quicker.
Nov-28-18  Walter Glattke: 20.Qf7+? Kh8 21.Bh6 Bxh2+ 22.Kh1 Rg8 23.Ng5 Nf8 24.Qf6+ Rg7 black wins. 19.Bh6+!? Kh8 20.Qf7 Nf8! 21.Qf6+ Kg8
Nov-28-18  saturn2: I saw

19. Rxh7+ Kxh7 20. Ng5+

20...Kh6 21. Qh3+ Kg7 22. Qh7+ (maybe the fork Ne6 also wins with slight material plus) Kf6 23. Qf7#

20... Kg7 21. Qf7+ Kh6 22. Qh7#

Nov-28-18  saturn2: 60-70 years ago 1..c5 was a popular reply following Benoni paths. But it was found white gets advantage by avoiding c4.

2.e3 is not very ambitious. Suetin recommends 2.d5 followed by e4 Nc3 Bc4

Nov-28-18  Cybe: After 16... Rfd8?, 17. Rc1 is much stronger.
Nov-28-18  stacase: 19.Rxh7+ and he dumps his King - well that was no fun.

I was rather sure that if a Bishop, Knight and King can do it, the Queen and a Knight & Bishop would have no problem.

Nov-28-18  malt: 19.R:h7+ K:h7
(19...Kf8 20.Bh6# )

20.Ng5+ Kh8
(20...Kg7 21.Qf7+ Kh8/Kh6 22.Qh7# )

21.Qh3+ Kg7 22.Qh7+ Kf6 23.Qf7#

missed 20...Kh6

Nov-28-18  goodevans: I went with 19.Bh6+, which is slower but still winning.

<Walter Glattke: ... 19.Bh6+!? Kh8 20.Qf7 Nf8!> ... 21.Bg7#.

I didn't go with 19.Rxh7+ Kxh7 20.Ng5+ because I failed to spot 20...Kh8 21.Qh3+. Instead I spent a while looking at <19.Rxh7+ Kxh7 20.Qf7+>. I concluded (wrongly) that it was probably winning but opted for 19.Bh6+ because that definitely was.

Would it have been worth black playing on one move longer?

Nov-28-18
Premium Chessgames Member
  TheaN: Wednesday 28 November 2018

<19.?>

Now I am on the right track, or rather, finish the game swiftly with <19.Rxh7+ Kxh7 (Kf8 20.Qf7#) 20.Ng5+ Kh6/Kh8 (Kg7 21.Qf7+ Kh8 22.Qh7#) 21.Qh3+ with 22.Qh7+ and 23.Qf7#>.

Alternatives work as well but if possible just mate, And now it actually does work :>

Nov-28-18  dannydoc: Bh6+ works just as well towards Mate.
Nov-28-18  perfessor: That clot of Black pieces on the queenside look like a Sam LLoyd helpmate problem.
Nov-28-18  PJs Studio: He resigned but I didn’t see the (very necessary) Qh3+ after Ng5+ in the whole 10 seconds I gave this puzzle... ugh.

Lars would’ve seen Qh3 course. Impatialence in puzzles equals impatience OTB

Nov-28-18
Premium Chessgames Member
  landshark: Glanced at this earlier today - knew it had to be fatal for Black with so many of his pieces out of play, but couldn't find the concrete sequences. Just took another look and it was much clearer: 19.Rxh7+ Kxh7, 20.Ng5+leads to mate in 5: 21...Kh8, 22fNf7+ Kg7, 23.Bh6+ Kg8, 24.Qxg6#. Other lines are quicker.
Nov-28-18
Premium Chessgames Member
  landshark: Missed 22.Qh3+ which is better than my line
Nov-28-18
Premium Chessgames Member
  drollere: i had to puzzle this one for a while. i found
19. Rxh7+ Kxh7
20. Ng5+ Kh8
21. Qh3+ Kg7
22. Qh7+ Kf6
23. Qf7#
point being that white must be able to throw continuous checks, and/or have the Q on the KR file, otherwise black's Bxh2+ will force the white K into mate on the d file.

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