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Emil Diemer vs Ronald A Fuller
Hastings B (1957)
Blackmar-Diemer Gambit: Euwe Defense (D00)  ·  1-0



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Given 24 times; par: 31 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Feb-11-08  hovik2003: <johnlspouge>
You are right as saying goes "practice makes perfect"
Feb-11-08  xrt999: So far 14 people have posted the actual solution in perfect notation, and 6 have used the term "discovered check". (not couting of course the slew of posters I have on ignore) Typical for a Monday.

I guess when you have read the solution 13 times in a row, one's natural inclination is to be the 14th.

Feb-11-08  goodevans: <johnlspouge: <hovik2003>, I also occasionally reflect the board, not just horizontally, but also vertically, e.g., I sometimes write d4 for d5 …> Me too. I’ve always put it down to having started out using the English notation (1. P-K4 P-K4; 2. N-KB3 N-QB3; etc.) where the same square has different labels depending on whose move it is. Horrible!
Feb-11-08  YouRang: A very interesting mate-in-2 Monday puzzle.

Naturally, the discovered check is calling for the knight to be moved -- except that our queen (the checker) is capturable.

So if the knight moves, it must either deliver double check (which it can't) or create a threat of its own.

That's the pretty part of the puzzle. The ultra-efficient 23. Ne8! serves triple duty: (1) by vacating f6, it clears the f-file for the rook to hit f8, (2) by landing on e8, it interferes with the black's rook's defense of the back rank east of the e-file, and (3) it guards the g7 square, effectively creating a back-rank mating threat.

That our queen is delivering check forces black's hand. He has just two legal moves, and either one will be his last.

23...Qxe5 24. Rf8#, or
23...Kg8 24. Qg7#.

Feb-11-08  MartinChuzzlewit: Please, let me be the 29th person to list the solution:


While I am at it, please allow me to go into all the gory details of black's impending doom, and list all the sub and sequential moves and the lines associated with each one, taking up 17 paragraphs to do so, utilizing my handy thesaurus to make everyone here that much more enamored with my narcissistic self...

Feb-11-08  kevin86: The clinching move is sort of a queen sac in that if black takes the queen,white ignores the recapture and mates instead.

As said above,the knight move opens up the rook,blocks the adverse rook,and guards the escape square at g7.

Ironically,if black declines the sac via 23...♔g8,white ignores the black queen and mates with his own by 24 ♕g7#.

Feb-11-08  JG27Pyth: JG27Pyth: Nice finish (although Qd6 was a blunder) but I really like this game top to bottom. Diemer puts relentless pressure on black's kingside and trades and simplfies very intelligently and deeply. If black plays 23.Qg7 instead of Qd6 the game heads toward an interesting ending... (the kind I dread!) where white is in a N vs B ending up a pawn and has positional advantages but will have to play absolutely accurately to convert the win.

White's move of the game IMO is 20.Qe4! a nice sharp tempo grab that keep the game in white's hands ... forcing black to play the meaningless Rb8 while white manuvers the Q to invade e5. Very nice game.

Feb-11-08  alphee: Nice mate, easy to spot.
Feb-11-08  herker: Hmmm... not so easy to me. I spent a minute to solve it.

I believe 9...b6 was Fuller's biggest mistake. His white squares were swiftly exploited, as well as the pin on f6.

May anyone explain if Emil Joseph Diemer is a co-inventor of Blackmar - Diemer Gambit? I think it isn't just a coincidence.

Feb-11-08  Steve Case: The knight's "motor was running" and it was just a question of where to go (-:
Feb-11-08  wals: Noting the strange thoughts that whirl through my head first glance: if Ne8+ Q x Q Rf8 checkmate
PM =
Good heavens I got it. I do think I'm improving.
Feb-11-08  Dr. J: <herker> Yes, it's the same Diemer.
Feb-11-08  outsider: why does nobody love NH5???
Feb-11-08  YouRang: <outsider: why does nobody love NH5???> 23. Nh5+ Qxe5
-- and what is there for white to love?
Feb-11-08  just a kid: I got 23.Ne8! in 10 seconds!
Feb-11-08  RandomVisitor: 11...Bb7 might equalize for black.
Feb-11-08  scorpius: lol, a monday puzzle :)
Premium Chessgames Member
  Jimfromprovidence: Black could have tried 18....Rf7 instead of Rxf6. Now, if 19 Qf4, then 19...Ba6 puts his queen rook into play.

click for larger view

Feb-11-08  Aurora: I have known it !
Premium Chessgames Member
  FSR: 23.Ne8+ Qxe5 (23...Kg8 24.Qg7#) 24.Re8# looks pretty strong.
Premium Chessgames Member
  FSR: <herker: May anyone explain if Emil Joseph Diemer is a co-inventor of Blackmar - Diemer Gambit? I think it isn't just a coincidence.>

It's not. Click on his name at the top of the game. He was also a Nazi -- lovely.

Feb-12-08  patzer2: As <YouRanq> notes, White's discovered check 23. Ne8+! initiates an amusing mate-in-two to solve the Monday Feb 11, 2008 puzzle.
May-17-08  sallom89: sick :S!
Sep-20-08  just a kid: Diemer may not have been the best player but he wasn't the worst!
Jan-19-09  MartinChuzzlewit: 25 posts for the puzzle of the day....and then the game is relegated back to the bowels of the CG dungeon, where it will rot for another 50 years, until the year 2059, when CG dusts it off to amaze another generation of woodpushers who will gush at the brilliance of a discovered check/queen attack.

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