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Max Pestalozzi vs Dietrich Duhm
Bern (1900), Bern SUI
French Defense: Classical Variation. Richter Attack (C13)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 4 ·  Later Kibitzing>
Jun-05-12
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair.

A mere question of technique, 11.Bxh7+:

A) 11... Kxh7 12.Qh5+ Kg8 13.Ng5

A.1) 13... Re8 14.Qxf7+ Kh8 15.Qh5+ Kg8 16.Qh7+ Kf8 17.Qh8+ Ke7 18.Qxg7#.

A.2) 13... Qxg5 14.Qxg5 + - [Q+P vs 2B].

B) 11... Kh8 12.Qh5

B.1) 12... Re8 13.Bg6+ Kg8 14.Bxf7+ Kf8 15.Bxe8 Qxe8 16.Qh8+ Kf7 17.Ng5+ Ke7 18.Qxg7+ + - [R+N+3P vs 2B].

B.2) 12... g6 13.Bxg6+ Kg7(8) 14.Qh7#.

Jun-05-12  RookFile: If you're playing the French Defense and are not calculating Bxh7+ every move, you don't survive long.
Jun-05-12  Tired Tim: <stacase: 11 Bxh7+ is the nearly instantaneous first choice on the what to do list.> Of course! But by Thursday/Friday, you have to see that Bxh7+ is *not* the move to play.

Fortunately, it will be in a different position.

Jun-05-12
Premium Chessgames Member
  scormus: Nice clean, natural sequence, and attractive final # position (attractive from the W side of th board anyway)

I always liked the line with 5. Bxf6, I didnt know it is called the Richter attack. I suppose it figures.

Jun-05-12
Premium Chessgames Member
  scormus: where did B go so wrong? Appealing though it looks, W's 5. Bxf6 and 6. e5 is not a winning line.

All looks like the natural continuation up to 9. Qg4, but what about 0-0? Looks rsky but it seems that's OK. But after 10 Nf3 it has to be, certainly not ... Nf6?? Instead 10 ... f5 and B's position should be defendable.

These were the sort of positions I often reached with W and thought I was winning, then found my attack foundered on the rocks.

Jun-05-12  sevenseaman: <scormus> I am much impressed the way you relate every puzzle to the game's opening. Is it possible to prepare a kind of 'ready reckoner' of say 30 common openings?

I'll do the donkey work, you just design it (in preferred order dictated by the incidence of their occurrence/popularity).

You see my ideas about opening theory are rather liberally vague. I've become painfully aware that one cannot afford to mess up the cardinal opening concepts. (In the interest of cardiovascular well-being, eh!)

BTW, how are you?

Jun-05-12  Abdel Irada: As always, chess is a game of extortion: One wrests concessions from the opponent by the threat of worse exactions.

In this case, we see what most experienced French players know as a stock sacrifice against which to remain forever on guard: After 11. ♗xh7+, black must yield decisive material or be mated.

The variations:

(1) 11. ...♔h8; 12. ♕h5, ♖e8 <(not 12. ...g6?; 13. ♗xg6+, ♔g8; 14. ♕h7#)>; 13. ♗g3+, ♔g8; 14. ♗xf7+, ♔f8; 15. ♗xe8, ♕xe8; 16. ♕h8+, ♔e7 and white has the luxury of a choice between exchanging into an easily won ending or continuing the attack with 17. ♕xg7+, ♔d8; 18. o-o-o

(2) 11. ...♔xh7; 12. ♕h5+, ♔g8; 13. ♘g5, followed by either

(2.1) 13. ...♕xg5; 14. ♕xg5

or

(2.2) 13. ...♖e8; 14. ♕xf7+!, ♔h8; 15. ♕h5+, ♔g8; 16. ♕h7+, ♔f8; 17. ♕h8+, ♔e7; 18. ♕xg7# (Note in this line the instrumentality of the white pawn on e5 in enforcing the mate, as well as the importance of removing the cover afforded by the f-pawn before chasing the king.)

Jun-05-12  Abdel Irada: ...And the actual line played shows that Duhm entirely failed to see his imminent doom. :-)
Jun-05-12  poszvald: I think this puzzle is about winning down black queen, or gaining advantage of future weak king defense: 1, Bxh7+ Kxh7 (if Kh8, than Qh5 wins)
2, Qh5+ Kg8
3, Ng5 and the only one step to avoide mate is Qxg5
4, Qxg5 (..Re8 5, Qxf7+ Kh8 6, Qh5+ Kg8 7, Qh7+ Kf8 8, Qh8+ Ke7 9, Qxg7#)
Jun-05-12  SamAtoms1980: Well, 11.Bxh7+ sure looks good, but does it work? Let's see.

11.Bxh7+ Kxh7 12.Qh5+ Kg8 13.Ng5 Re8 14.Qh7+ Kf8 15.Qh8+ Ke7 16.Qxg7 Rf8 and the finishing line is not clear.

Hmm. I spell a spoiler.

I think I'm going to castle.

Let's have a look..... D'OH!

14.Qxf7+ Kh8 15.Qh5+ Kg8 was the ingredient that I was missing.

And so the French Defense is played by a German, and then a Greek gift is offered by an Italian. Why can't they all just be one big happy family?

Wait.... Max doesn't sound like an Italian name. He might have been Swiss. That would pretty much change everything.

Jun-05-12  mistreaver: 11 Bxf7+ breaks the Black's defences.
Now if:
a)11... Kxh7 12 Qh5+ Kg8 13 Ng5 and black has to give uš his queen b)11... Kh8 12 Qh5 and wins
Jun-05-12  mistreaver: I will claim full point for today because this is Greco's sacrifice mating pattern which is rather famous.
Jun-05-12  gofer: We have seen one quite like this before, but it wasn't quite so easy and it certainly wasn't so clear cut and it definitely wasn't a "Tuesday"!

11 Bxh7+ Kxh7
12 Qh5+ Kg8
13 Ng5 Re8
14 Qxf7+ Kh8
15 Qh5+ Kg8
16 Qh7+ Kf8
17 Qh8+ Ke7
18 Qxg7#

Time to check...

Jun-05-12
Premium Chessgames Member
  whiteshark: Duhmsday!
Jun-05-12  Marmot PFL: I knew there had to be some puns for this one. This game was played in 1900 but even today this old sac still occurs from time to time.
Jun-05-12  ossipossi: Black plays ten plain moves, and it's lost by the simplest sacrifice, There must be something wrong in french defense, or in human brain.
Jun-05-12  mohannagappan: 11.Bxh7+ Kxh7 12. Qh5+ Kg8 13. Ng5 Re8 14.Qxf7+ Kh8 15. Qh5+ Kg8 16.Qh7+ Kf8 17.Qh8+ Ke7 18. Qxg7#
Jun-05-12  CHESSTTCAMPS: In this opening position, material is roughly equal, but black's undeveloped bishop doesn't contribute to the defense of the weak kingside. Most players of the French and related defenses know not to castle into the attack when the KN has been displaced by e5 and there are no other pieces to defend. White has a routine forcing combination to exploit the weak h7.

11.Bxh7+ Kxh7 (Kh8 12.Qh5 wins) 12.Qh5+ Kg8 13.Ng5 and now:

A) 13... Re8 14.Qxf7+ Kh8 15.Qh5+ Kg8 16.Qh7+ Kf8 17.Qh8+ Ke7 18.Qxg7#

B) 13... Qxg5 14.Qxg5 (Q+P for N+B), a big material advantage in a position that should be decided quickly by advancing the h-pawn.

Jun-05-12  zb2cr: I saw this...but with nowhere near the careful exposition that <agb2002> gives it!

I salute you, sir!

Jun-05-12
Premium Chessgames Member
  Once: There are some things in life that you should think long and hard about.

When asked by your nearest and dearest: "Does my bum/ butt, look big in this?", saying: "hmm - it depends what you mean by big"

If you find yourself in a horror film, letting your curiosity get the better of you and opening the creepy door at the top of the stairs.

If you are a red-shirted security officer on the Starship Enterprise, bouncing up to Captain Kirk saying: "Me sir! Me sir! I'd love to beam down to that alien planet with you, sir!"

If you are playing the French defence and your opponent has a pawn on e5, a Bd3 and a Qg4, castling kingside.

If you do decide to castle kingside into that attack, not throwing in something like f5. Here's the position after 10. Nf3...


click for larger view

If you've been brave enough to castle after 9. Qg4, now is the time for a little bit of discretion. White has all the makings of an irresistable attack with the thematic greek gift sacrifice. Nf3 is the last attacking piece that he needs. From this position, either 10...f5 or 10...f6 give black a good game.

Incidentally, this sacrifice has a rather unusual feature - the incredible disappearing consonant. The first time you read about it, it is known as the "greek gift". When you study it obsessively, it becomes the "geek gift".

And if you ever have it played against you, it's the "eek! gift".

Jun-05-12  Patriot: This looks like a classic bishop sacrifice.

11.Bxh7+ Kxh7 12.Qh5+ Kg8 13.Ng5 Re8 14.Qxf7+ Kh8 15.Qh5+ Kg8 16.Qh7+ Kf8 17.Qh8+ Ke7 18.Qxg7#.

Black could throw in 13...Bxf2+ 14.Kd1 and black is still lost. He can also sac the queen with 13...Qxg5 but that's just losing.

Jun-05-12  Lambda: I was thinking too rigidly of the classic bishop sacrifice, so my second move was Ng5+ and I was trying to find complicated lines after ...Kh6. (I think it still wins, 11.Bxh7+ Kxh7 12. Ng5+? Kh6 13. Qh4+ Kg6 14. Qh7+ Kxg5 15. Qxg7+! cutting off an escape route f4-e5-d6 and white can chase the black king towards white's own pawns, but there's too much to calculate precisely.) If I'd never seen a bishop sacrifice at h7 before, I'd probably work it out easily, but as it is, 12. Qh5+ fell in a blind spot.
Jun-05-12  desiobu: Qxf7+ first is the key.
Jun-05-12  VincentL: "Easy".

11. Bxh7+ Kxh7 12. Qh5+ Kg8 13. Ng5 Re8 14. Qxh7+ Kf8 15. Qh8+ Ke7 16. Qxg7 with Qf6# to follow.

Black can give up Q for N with 13......Qxg5.

If black declines the original sacrifica and plays 11.....Kh8 mate will follow after 12. Qh5 and Bg6+

Jun-05-12  TimothyLucasJaeger: The greek gift 11 Bxh7+ cannot be accepted, since after 11 ... Kxh7, the forcing sequence 12 Qh5+ Kg8 13 Ng5 Re8 (13 ... Bxf2 doesn't help. White should avoid 14 Kxf2 Qb6+ which would allow black's king access to d8 and simply play 14 Kf1) 14 Qxf7+ Kh8 15 Qh5+ Kg8 16 Qh7+ Kf8 17 Qh8+ Ke8 18 Qxg7 is checkmate.

But after 11 ... Kh8 12 Qh5 Re8 13 Bg6+ (the tempitng 13 Ng5 can be met with 13 ... Nxe5) Kf8 14 Bxf7 white is up two pawns and black's king is exposed.

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