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Aron Nimzowitsch vs E Verner Nielsen
"Bjorn Under a Bad Sign" (game of the day Sep-13-2005)
Simul (1930), Copenhagen DEN, Apr-10
Caro-Kann Defense: Karpov. Modern Variation Kasparov Attack (B17)  ·  1-0


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Given 7 times; par: 20 [what's this?]

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Kibitzer's Corner
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Sep-13-05  coolthing76: a very nice killer move.
Sep-13-05  ianD: Beautiful end position. Must have been a real shock. Black was thinking BxRd6
Sep-13-05  JohnBoy: I concur with all of the sentiments here - what a finish! Talk about getting hit in the face with a sledge hammer...
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  ajile: A bolt from the blue. Who could see such a beautiful move?
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  YouRang: Having his rook off the back rank, and ready to slide over to a weakened castled position gives Nimzo a fabulous queen sac tactic.
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  kevin86: After a series of moves focusing on d6,white threatens mate-an immediate dagger in the heart o black's game:Mate in two follows gxf6-and mate in one follows about everything else.
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  kevin86: Black CAN save the game by 23...♕xe5,but 24 ♕xe5 leaves black with two rooks vs a queen and a rook
Sep-13-05  belka: <A bolt from the blue. Who could see such a beautiful move?>

I might see it in the future now that I've seen it once All it took was 3 positional components, and look how simple they were!

1. bishop on the long open diagonal

2. an activated rook able to reach the open side of the half open g file

3. a weak f6 square (already on the long diagonal.)

All 3 combine to mean f6 belongs to White. When Black is castled kingside, that a great square to control.

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  YouRang: YouRang: After 19...Qd5, Nimzo already saw this queen sac combo. All he needed to do was deflect the bishop guarding f6. That was the point of 20. Rc7! The deflection worked (20...Bd6), except now the bishop is threatening White's bishop, which is also needed to make the queen sac work. So Nimzo pins the black bishop with 21. Rd7!, creating a 'side threat' to win the bishop.

Black unsuspectingly moves his rook to defend the bishop, but after eliminating the black bishop (22. Rxd6 Rxd6), White can spring the queen sac, 23. Qf6!! Black can survive only by losing his queen after 23...Qxe5 or 23...Bxe5.

Sep-13-05  EmperorAtahualpa: Nice game! could have made a nice puzzle out of this game actually...
Sep-13-05  briscola: Wow!!
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  YouRang: Perhaps Black's last chance to survive would have been to protect his bishop with the other rook (21...Rfd8 instead of ...Rad8). That way, he has f8 as an escape square.
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  tpstar: Accepting the Queen sacrifice with 23 ... gxf6 leads to a Morphy Mate after 24. Rg4+ Kh8 25. Bxf6#:

click for larger view

Good luck finding other Morphy Mates in the database, but here are some Morphy Concealed Mates which feature a Windmill before mating:

Reshevsky vs Shainswit, 1951
Kiss vs J Vianna, 1925
Winawer vs Shumov, 1875

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  tpstar: Another Morphy Mate = Owen vs Burn, 1887
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  tpstar: Another Morphy Mate = T Palmer vs D Moody, 1999
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  Travis Bickle: 23. Qf6 1-0 is a Fischerlike move!
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  An Englishman: Good Evening: What a way to treat the gentleman who would eventually write your biography!
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  notyetagm: Game Collection: notyetagm's favorite tactics
Aug-28-12  backrank: Quite strange that Nimzo admitted an IQP here, which he otherwise considered weak. Strategically, Black is playing well, blockading d5. However 19 ... Qd5 is weak, surrendering the 7th rank. 19 ... Rc8 instead looks quite satisfactory for Black.
Nov-07-17  Swedish Logician: Nimzo's lightening bolt 21. Qf6!! reminded me of Bronstein's striking 20. Qg6!! in Bronstein vs Geller, 1961
Nov-14-17  Stonehenge: Black may actually have been Verner Nielsen.
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  Magpye: <Stonehenge: Black may actually have been Verner Nielsen.>

He was. In Bjorn Nielsen's <Nimzowitsch Danmarks Skaklaerer>, pg. 425, Diagram F, this game is given at move 20...Bd6, with E. Verner Nielsen as Black.

Nov-15-17  Stonehenge: Thanks, I have submitted a correction slip. So much for the pun :)
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  Magpye: Glad I had the book available.
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  Magpye: Wow! That name change correction was fast.

Now we just to find out what the E. stands for.

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