Author: Dann Corbit
Date: 17:39:50 02/28/02
Go up one level in this thread
On February 28, 2002 at 15:00:03, Les Fernandez wrote:
>[D]8/4b1k1/R5pp/2p1pp2/1pQq4/1P1P3P/1P3PPK/8 w - -
>
>
>I am interested to know if the above position can be held by black. White is
>short on time but can force perpetual by Qe6. Although a rook is better then a
>bishop, most of the time, should white exchange queens here? I am only an
>average player but after doing a little analysis on this position Crafty reports
>the following on a fairly slow machine. (Pentium 350, 256 mb ram)
>
>8/4b1k1/R5pp/2p1pp2/1pQq4/1P1P3P/1P3PPK/8 w - - acd 15; acn 170618898; acs 900;
>ce 155; pv Kg1 Qxc4 bxc4 h5 g3 Kf7 Kg2 Bf6 Rc6 Be7 Kf3 g5;
>
>Although white is reported to have a 1.55 advantage after Kg1 I wonder if the
>position can be held by black. I also took a look at the position with white
>taking the queen and the ce still appeared about the same with black capturing
>white queen with cxd4.
>
>8/4b1k1/R5pp/2p1pp2/1p1Q4/1P1P3P/1P3PPK/8 b - - acd 17; acn 186582676; acs 902;
>ce -151; pv cxd4 Kg3 Kf7 Kf3 h5 Rc6 Bf6 Rb6 Be7 g3 Bf8 h4 Be7;
>
>Question is with queens off the board can the white rook start chopping up the
>black pawns while the black bishop exists? Can someone run this on better
>hardware and tkae it a bit deeper to see what falls out?
One possible dominating sequence after the immediate queen exchange and pawn
move to g4:
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[FEN "8/4b1k1/R5pp/2p2p2/1p1p2P1/1P1P3P/1P3P1K/8 b - - 0 1"]
[SetUp "1"]
{--------------
. . . . . . . .
. . . . b . k .
R . . . . . p p
. . p . . p . .
. p . p . . P .
. P . P . . . P
. P . . . P . K
. . . . . . . .
black to play
--------------}
1... fxg4 2. hxg4 Kf7 3. Kg3 Bg5 4. Ra7+ Be7 5. Kf4 Kf6 6. Ra6+ Kf7 7. Ke5
h5 8. gxh5 gxh5 9. Rh6 Bd8 10. Rxh5 Kg6 11. Rh3 Bc7+ 12. Ke6 Kg5 13. Rh7
Bf4 14. Rg7+ Kh6 15. Rg1 Bc7 16. Rg8 Kh7 17. Kf7 Kh6 18. Kf6 Kh5 19. Kf5
*
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