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Klaus Bischoff vs Karsten Mueller
"Smother's Day" (game of the day May-11-08)
75th German Championship 2004  ·  Semi-Slav Defense: Stoltz Variation (D45)  ·  1-0


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find similar games 2 more K Mueller/K Bischoff games
sac: 31.Rxe6 PGN: download | view Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing >
Oct-27-04
Premium Chessgames Member
  notyetagm: Best defense to 31 ... Ne4 seems to be 32 Re8+ Rxe8 33 Nxe8, meeting the threats of 32 ... fxe6 and 33 ... Rxb3 and trading off a pair of rooks to boot. Then White is simply up by a piece for nothing. Black has some activity with his Qa3 and his Ne4 but it hardly compensates for a piece.
Oct-27-04   marekg248: The same combination would follow in this game: Ribli vs Chandler, 1982. A pattern surely worth remembering.
Oct-27-04
Premium Chessgames Member
  Knight13: I say Rxe6 immediately. I think I am getting better on these daily puzzles.
Oct-27-04
Premium Chessgames Member
  midknightblue: Poor Mueller. My only question is why did he play the game to completion. He could have demonstrated the calculating ability of someone with at least half his rating (i.e. 1250+ or so) by resigning after Qe1. Instead he allowed himself to be humiliated. I think sometimes they play the games to completion simply to give the opponent the honor of getting their asthetically pleasing mate, so that they can show it off later. If, this was his reasoning, it was a kind act. I could never bring myself to be so generous. My king would be horizontal after move 30.
Oct-27-04   helloriker: <erikcu> if 31 ... kf8 32 re3 black can play 32 ... a5. You are now threatning to win the bishop back on the next move. So there are still some chances for black because he has a slight tactical edge. There are a lot of mate threats that white has to worry about and he will probably have to give back the piece to escape.

I don't believe ne4 is the best defence to this attack because it forces white to trade off pieces which is good for white. Black needs to keep his rook for added pressure on whites king.

Oct-27-04
Premium Chessgames Member
  Willem Wallekers: <DexterGordon: <panigma>, the comments I like best report *how long* it took them to solve the puzzle.> Those kibitzers confuse seeing a promising move with actually checking out possible defenses.
Oct-27-04
Premium Chessgames Member
  Willem Wallekers: BTW Herr Mueller seems to be a stubborn type. The manouevre 7 ... e5, 8 ... e4 looks questionable. Mueller played this a few month earlier against the same opponent. Then he played 9 ... 0-0 and lost also.
Oct-27-04
Premium Chessgames Member
  artemis: <to all>: Most of the smothered mate themes involve queen sacrifices. As such, they tend to stay in a players memory. If I were to look at two different positions with a theme that I know, one involving the smothered mate with the queen sac, and another one, of equal 'difficulty', than I would probably find the smothered mate quicker, because lets face it; who doesn't like to finish off their opponent with a queen sac?

As to why the GM was caught, it is a relatively easy oversight, and depending on the time controls, or time left at this point, it is easy to make a mistake. Kramnik has left his queen hanging before.

Oct-28-04   Marco65: <helloriker> 31...Kf8 32.Re3 a5 is interesting, but I think 33.Qc3 a4 34.Bd1 is enough to hold the position, and there is also the tricky 33.Nc8!, for instance:

33...Rxc8? 34.Bc2 trapping the queen
33...a4? 34.Re8+! Nxe8 35.Qe7+ Kg8 36.Qxe8#
33...g6 34.Nb6 and again Bc2 is threatened

Dec-27-04   ArturoRivera: why not 30.-...h6?
Nov-28-06   syracrophy: This should be a Game of the Day on Christmas with the pun: "Santa Klaus is coming tonight" :-) It has double sense since it involves the name of a player and also, in "to-night" appears the name of the piece that gave mate in th end :-P
May-11-08   wouldpusher: <This should be a Game of the Day on Christmas>

It turns out to be much different from what was expected.

May-11-08
Premium Chessgames Member
  deadlysin: not the normal smotherd mate
May-11-08
Premium Chessgames Member
  Gilmoy: <panigma: The question is...how easy would this be if you didn't know this week's "smothered mate" theme?>

- For a newbie who's never seen (or done) a Philidor before, it's fun to work it out. We all started there.

- After you've lost to it 2-3 times, you'll always see it. (Take heart!)

- Eventually, you'll pull it off yourself. (~30 times for me in blitz -- it's much rarer than weak back rank with a rook, but much more common than an Anastasia or Damiano.)

- At strong Internet level (say, reaching "master"-equivalent level on any free Internet chess site, like pogo -- so you regularly stomp 70% of other players on that site -- I dunno how that equates to Elo), you know mate patterns by heart, and you start using them during your move planning. That means 5-6 moves in advance, you see the threat, and you're juggling it among about 5 other threats / constraints / ideas among your strengths. Usually, your opponent also sees it, and pays a move to snuff it (which you can anticipate), or he does something outre that negates the half-chance. Once in a while, he'll miss a deep threat.

- For the Philidor pattern, any N attacking f7 is a mental trigger. (If you don't have that trigger yet, make one!) Then you need a diagonal Q check. Canonical is Ng5/Qc4+ -- but your opponent usually sees that coming. (And why? Because he probably already lost to it once before!) Then you generalize to all the variations of those elements.

- In this game, at move 20 (or before!), White surely saw that 21.Nd6 has the outside, remote, ghost-of-a-threat of a Philidor. It's half the pattern, so it's a deep constraint on Black -- Black must skate carefully around the threat, and/or eventually pay a move to settle it (e.g. 21..h6). Hence, that's one of the fringe benefits of planting an N on d6. White surely didn't expect to actually finish the pattern -- it's not the main reason he played Nd6. Nd6 is a three-tier German chocolate cake, and the Philidor threat is only the stem on the cherry.

- Black may have even seen it too (at 21), but kept putting off the 1 "wasted" move to settle the threat -- walking the very fine line between puppethood and aggression. You gotta break a few eggs to beat another GM (with Black)! Black came very close to a win by force. He just overstepped by one move, and ran into a deep fork -- his Q, or a piece, or mate. It happens.

May-11-08
Premium Chessgames Member
  whiteshark: Mother's Day was last week.
May-11-08
Premium Chessgames Member
  patzer2: A smothered mate on mother's day makes for an amusing pun for the game of the day. After 31. Rxe6! fxe6 32. Qxe6+, there's no stopping mate.
May-11-08   jovack: funny how 4 years ago people were saying the same thing about daily puzzles:

"got this one right away, i think im getting better at these puzzles"

May-11-08   Pianoplayer: No Mothers day is 2day in the U.S<whiteshark>.
May-11-08   fersonatu: White's 30th move strikes me as a good Thursday/Friday puzzle. (I love the quite key move puzzles) To bad it has already been a puzzle (starting at move 31) and now a GOTD.
May-11-08
Premium Chessgames Member
  RandomVisitor: After 26...Qa4 there would be the improvement 27.Rxb8+!

1: Klaus Bischoff - Karsten Mueller, 75th German Championship 2004


click for larger view

Analysis by Rybka 2.3.2a mp : 18-ply

1. (1.58): 27.Rxb8+ Rxb8 28.c6 Rb6 29.c7 Rc6 30.Qb2 h6 31.Rxe6 fxe6 32.c8Q+ Rxc8 33.Nxc8 Ne4

2. ± (0.91): 27.Reb1 Rxb3 28.Rxb3 Qd7 29.Rb7 Qd8 30.Kb2 g6 31.g4 Rb8 32.Rxb8 Qxb8+ 33.Qb3 Qa8

(, 11.05.2008)

May-11-08
Premium Chessgames Member
  whiteshark: Thanks <Pianoplayer>, I didn't know that. When in Rome, do as the Romans do! :D
May-11-08   lildemonsc: The pun that keeps on giving.
May-11-08
Premium Chessgames Member
  sleepyirv: I like Mueller's optimism. "Hey, maybe he doesn't know his queen sac leads to a mate!" Or maybe Mueller just wanted to see a smothers mate in an advance game.
May-12-08
Premium Chessgames Member
  kevin86: Although the pun has whiskers on it,it is a good excuse to show a Philidor's Legacy-at any time.
May-02-09   WhiteRook48: it would be even funnier if it was played on May's second Sunday that year
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