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Subject: Re: An amazing checkmate. Can your program find it?

Author: Marc Plum

Date: 16:26:48 12/22/99

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On December 22, 1999 at 14:10:56, Dann Corbit wrote:

>Have a look at this tremendous checkmate Chest found from the famous 1924 New
>York Chess Club championship:

Not a mere "chess club championship".  This was one of the strongest
international tournaments of its time, won by Em. Lasker ahead of Capablanca and
Alekhine.

>2r3k1/5ppp/7r/Q7/3P1p2/1N3Pnq/PP3K1P/R5R1 b - - acd 10; acn 535351375; acs
>15279; bm Ne4+; ce 32750; dm 9; id "C.A.P. 812153"; pv Ne4+ fxe4 Qe3+ Kf1 Rxh2
>Rxg7+ Kxg7 Qe5+ f6 Qe7+ Kg6 Qxf6+ Kxf6 e5+ Kg6 e6 Qf2#;
>
>I will be amazed if any general purpose program (or even most GM's) can find it.

As someone has already pointed out, Black (Frank Marshall) didn't find it, but
played another winning line, Qxh2+.  That makes two GMs who apparently
overlooked this, as Alekhine lets this pass without comment in his notes.  See
"The Book of the New York International Chess Tournament, 1924", Herman Helms,
ed., available in a Dover Reprint.

Marc



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