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Subject: Re: Another tough one ...

Author: Bertil Eklund

Date: 09:45:17 12/21/00

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On December 21, 2000 at 07:11:47, Ferdinand S. Mosca wrote:

>On December 21, 2000 at 02:03:12, Jim Monaghan wrote:
>
>>[D]r1b3k1/pp1n3p/2pbpq1r/3p4/2PPp1p1/PP2P1P1/1BQN1P1P/3RRBK1 b - - 0 17
>>
>>Maroczy-Tartakower, 1922 bm 17...Rxh2!!
>>A human GM would consider this first and only if it didn't
>>work would alternatives be examined.  The engines don't even
>>consider it briefly in their candidates ... Interesting. Not that
>>difficult to "see", tough to verify though ...
>>
>>Crafty 17.14
>>12->   8:12  -0.47   1. ... Qf5 2. Bg2 Rf6 3. Re2 e5 4.
>>                                    Nf1 exd4 5. exd4 b6 6. cxd5 cxd5 7.
>>                                    Ne3 Qh5 <HT>
>>
>>LG2000v2.9a
>>
>>12 58 34388 51749022 f6f5 f1g2 d6e7 e1e2 h6f6 g1h1 f6f7 a3a4 b7b6 c4d5 c6d5
>>
>>
>>This position has probably been posted before. Sorry in advance if it was:-)
>>Anybody's program see this?
>>
>>Jim
>
>I think the move 17...Rxh2 is still premature. The bishop on c8, the rook in a8
>and the knight in d7 have to be improved first.
>
>one variation is:
>1...Rxh2?! 2.Kxh2 Qxf2+ 3.Kh1 Qxg3 4.Re2 and black cannot sustain his attack,
>its undeveloped pieces can not easily support a pawn storm on white's king
>position. Besides by eliminating white's pawns in f, g and h, black's king
>position is also in trouble because of white's rooks that is not difficult to
>develop.
>
>Dinan

Hi!

I believe it's winning (with the help of Gambit) instead 3.-Nf6 4.Rc1-Qxg3
5.Nb1-Qh4+ 6.Kg1-g3 7.Qg2-Ng4 8.Qh3-Qg5 9.Rc2-Bd7! 10.Rg2-Rf8 11.Rxg3-Bxg3
12.Qxg3-Rf3 13.Qg2-Qh4 14.Re2-Rg3 15.Qxg3-Qxg3+  and game over.

No I don't think any program finds 17.-Rxh2, at least not in reasonable time.

Bertil



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