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Subject: Re: a few more "Arasan" test positions

Author: Andrew Dados

Date: 11:19:05 02/06/01

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On February 06, 2001 at 09:58:57, Jon Dart wrote:

>A few more test positions from Arasan games:
>
>r1b2rk1/pp3pp1/4p2p/2ppP1b1/3Pq3/2P1PNP1/PP2Q2P/R3KB1R w KQ - bm Nxg5; id
>"arasan2.19";
>rnb2rk1/pp2bpp1/2ppp1qp/4P3/3P4/2NB1N2/PPPQ1PPP/2KR3R b - - bm f5; id
>"arasan2.20";
>1r4k1/p2R1pp1/4p2p/3b4/1P2q3/P4N2/5PPP/3Q2K1 b - - bm Qg6; id "arasan2.21";
>1r5k/p5qp/2pr4/3p1p2/1P1Pn1p1/P2B4/2R1RPPP/2Q3K1 w - - bm Bxe4; id "arasan2.22";
>2r1rbk1/1pq2p1p/2b1pPp1/3pP3/p1pP2P1/P1P2NQ1/1PB4P/1R2R1K1 w - - bm Ng5; id
>"arasan2.23";
>
>The last one is an example of why computers shouldn't play the French:

>
>[D] 2r1rbk1/1pq2p1p/2b1pPp1/3pP3/p1pP2P1/P1P2NQ1/1PB4P/1R2R1K1 w - -

I found that simply penalizing pawn on f7 and giving huge bonus to white pawn f6
in such a setup (e6/e5 and d5/d4 blocked; g6 even worsens dark squares) forces
mine to prepare/play f5. I prefere weak e6 and hope to play e5 then getting
mated comfortably. While primitive it seems to work...

-Andrew-

>
>White probably has more than one way to win (in the game, he played h4) but Ng5!
>appears to be most decisive. Another question, though: do any programs realize
>at this point (before they see the tactics) that Black is in a very bad way,
>with his Queen several other pieces locked out of the action, and his King, if
>not now unsafe, about to be put in danger?



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