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Emil Joseph Diemer vs Portz
Lindau 1948  ·  Blackmar-Diemer Gambit: Ryder Gambit (D00)  ·  1-0
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Given 33 times; par: 21 [what's this?]

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sac: 12.Qxc6+ PGN: download | view Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 7 OF 7 ·  Later Kibitzing>
Mar-15-10
Premium Chessgames Member
  Patriot: <fyad reject> It could be that you are studying patterns that are not basic enough. For example, you should look at simple knight forks, skewers, pins, etc. first rather than combinations that end in these tactics.

It almost sounds as if you are trying to remember whole positions. It's not about remembering where every piece is. In this puzzle, for example, you only need to see that the black king cannot move (a big hint!) because of the bishop slicing across the board, the queen is aimed at the pawn on c6, and another bishop is ready to jump in at a6 to deliver mate. Also, whenever the enemy king has no move consider a check...even if it looks bad.

Mar-15-10  micartouse: <Play the French against them and they will lose. Most BDG don't even know that there is something like an endgame.>

I played 2 ... e6 online once, and my opponent played 3. Be3 which completely surprised me (and he won actually, but he was rated a bit higher so I didn't read much into it).

Mar-15-10
Premium Chessgames Member
  kingfu: If you are bad at endgames, play for mate. Beware the Ides of March.
Mar-15-10  Cushion: Qxc6+ forces mate.
Mar-15-10
Premium Chessgames Member
  kevin86: Classic Boden crossfire mate by two bishops. The pawn takes the queen,but sadly opens the door to the second bishop-just as the movement of the c7 pawn opened the first door.
Mar-15-10
Premium Chessgames Member
  mjmorri: The hard part about Boden's mate is not finding the pattern when it arises, but in the organizing ones forces to make it a possibility.
Mar-15-10
Premium Chessgames Member
  YouRang: I had forgotten the name of this tactic, but I remembered the tactic itself right away, with the queen sac setting up the bishop criss-cross mate.

Some time ago, cg.com featured this tactic for a few days in a row, so I guess it got burned into my head. :-)

Mar-15-10
Premium Chessgames Member
  Jack Kerouac: <chrisowen> Phantasmagorical syntax!
Mar-15-10
Premium Chessgames Member
  patzer2: It's Monday and 12. Qxc6+! initiates a Boden's mate-in-two for our puzzle solution.
Mar-15-10
Premium Chessgames Member
  patzer2: After 11. Bf4, Black could have held with 11...Qa5! to , which parries the Boden's mate threat with 12. Qxc6+?? bxc6 13. Ba6+ Qxa6 .
Mar-15-10
Premium Chessgames Member
  chrisowen: <Jack Kerouac> White wins cup after Qh5. Put the Ryder gambit in context, black goes up two pawns but the queen does captain paving his path. Go merry go round 5..Qxd4 6.Be3 Qg4 7.Qf2 Qb4?! 8.0-0-0 e5 for instance tees off complications perhaps 9.Qg3. Or in the manner of resorting to a new port of call kill Qb4 look at 7..e5. He swans eagerly the Qh5 without a concrete check, it results in a grand flogging.
Mar-15-10
Premium Chessgames Member
  fm avari viraf: When this game was played, I was just two years old. Now, I keep teaching such tactics to my students scores of times in my academy. The Queen looks more beautiful on c6 & becomes immortal.
Mar-15-10  Cardinal Fang: Qxc6. I'd only scrolled down as far as the third rank.
Mar-15-10  Brandon plays: Qxc6 bxc6 Ba6# seems suggested. I was thinking g4 for a second, but that doesn't really do anything.
Mar-15-10  ROO.BOOKAROO: The crisscrossing of the two white bishops is key. It jumps to your eyes. Then the queen sacrifice is obvious. For once I got the puzzle without any hesitation, in 10 secs flat. Maybe I am not yet a lost case. Of course, we are mentally prompted because we know there's now a key move. The prompting is 50% of the equation.
Mar-15-10  Shah Mat: <fyad reject>

don't feel bad man. i've spent the last 2 weeks doing mate-in-twos, white to moves in Laszlo Polgars Chess, and i still didn't find this in spite having solved at least 3 dozen similar puzzles as recently as 10 hours ago.

in fact, your description of what you looked for mimicked mine almost exactly.

i also felt stupid when i saw the solution =(((

Mar-15-10
Premium Chessgames Member
  OBIT: Wow... I pulled up Diemer's games with the BDG in this database, and I see his record is 104 wins, 8 losses, 1 draw. This is just further proof, of course, that opening statistics are meaningless in a database like this. Speculative openings always score great in selective databases, since the games that get uploaded are usually the ones where the opening worked great.

By comparison, when I check the results after 4...exf3 (main line BDG) in a database of master level games, I see White scores under 40%.

Mar-15-10
Premium Chessgames Member
  Marmot PFL: I saw the mate in a couple of seconds, but have been trying all day to remember it's name. Thanks you kevin86.
Mar-15-10
Premium Chessgames Member
  Once: Okay, let's strip this one down to its core components and see if we can make it easier to remember. Here's the absolute basic unplugged position:


click for larger view

The combination of the black rook and knight plus the white bishop mean that the black king is almost stalemated. All it would take would be for a bishop or queen to land on a6 and it would be mate.

Here's the same mating pattern with a few more pieces added:


click for larger view

The pawn on b7 is all that stops white from playing Ba6#. So all we need to do is to deflect the b7 pawn with 1. Qxc6+ bxc6 2. Ba6#.


click for larger view

The other way to remember this one is by spotting the landmarks. Black has castled queenside after playing c6. This means that his queen knight can't go to c6 where it really belongs, so it has to go to d7.

That's black's side of the equation. He has voluntarily boxed his king in.

For his part, white has bishops and queen poised to jump into the queenside. Whenever you get these factors, you should always be on the lookout for Boden's mate.

Mar-15-10
Premium Chessgames Member
  hedgeh0g: A fairly common tactical theme today: Boden's mate. White forces mate with Qxc6+! bxc6 Ba6#.

Having a bishop lasering into the opponent's queenside-castled position often generates a lot of tactical opportunities. Definitely a pattern to remember.

Mar-15-10  SamAtoms1980: Roll the Queen right into the fortress of the enemy. Good ol' Monday.
Mar-15-10  JG27Pyth: The original: R Schulder vs S Boden, 1853

Talk about castling into it.

Mar-15-10  ku0826: Forced mate with Queen is decisive.
Mar-15-10  turbo231: I don't have a clue.
Apr-21-12
Premium Chessgames Member
  Infohunter: <JG27Pyth: Talk about castling into it.>

Just like what happened in Ed Lasker vs F Englund, 1913.

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