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Subject: Re: Position from last week

Author: blass uri

Date: 22:51:44 07/07/98

Go up one level in this thread


On July 07, 1998 at 18:21:52, Bruce Moreland wrote:

>Someone posted this position, as I challenge, I believe, to Diep.  I don't think
>anyone responded to it.
>
>I started my program thinking about this, figuring I'd let it go a day or two,
>but with the (US) holiday weekend, plus the technical difficulties that we had
>here, I let it go for a while longer than I expected.
>
>Does anyone know what the real point is of 1. ... d6 ?
>
>bruce
>
>-----------------
>
>r1bqr1k1/pp1p1ppp/5n2/1N2n3/2P1PB2/6P1/PP1Q1K1P/4RB1R b - - 0 1
>
>    a   b   c   d   e   f   g   h
>  +---+---+---+---+---+---+---+---+
>8 | r |///| b |/q/| r |///| k |///| 8
>  +---+---+---+---+---+---+---+---+
>7 |/p/| p |///| p |///| p |/p/| p | 7
>  +---+---+---+---+---+---+---+---+
>6 |   |///|   |///|   |/n/|   |///| 6
>  +---+---+---+---+---+---+---+---+
>5 |///| N |///|   |/n/|   |///|   | 5
>  +---+---+---+---+---+---+---+---+
>4 |   |///| P |///| P |/B/|   |///| 4
>  +---+---+---+---+---+---+---+---+
>3 |///|   |///|   |///|   |/P/|   | 3
>  +---+---+---+---+---+---+---+---+
>2 | P |/P/|   |/Q/|   |/K/|   |/P/| 2
>  +---+---+---+---+---+---+---+---+
>1 |///|   |///|   |/R/| B |///| R | 1
>  +---+---+---+---+---+---+---+---+
>    a   b   c   d   e   f   g   h
>
>Times on a P2/300
>
>PV 00:00:30.840  8    -81 [wrong] d5
>PV 00:00:34.283  8    -80 [wrong] d5 exd5 Neg4+ Kf3 Rxe1 Qxe1
>PV 00:01:00.815  9    -50 [wrong] d5 exd5 Bf5 Nc3 Neg4+ Kg2 Ne4 Rxe4 Bxe4+ Nxe4
>Rxe4 Bd3 Re8 d6
>PV 00:02:55.182 10    -59 [wrong] d5 exd5 Bf5 Nc3 Neg4+ Kg2 Ne4 Rxe4 Bxe4+ Nxe4
>Rxe4 Bd3 Re8 Qc2 Nf6 Rf1
>PV 00:11:33.407 11    -52 [wrong] d5 cxd5 Neg4+ Kf3 Nxd5 Rd1 Nge3 Bxe3 Bg4+ Kxg4
>Nxe3+ Qxe3 Qxd1+ Kh3 a6 Nd4 Rad8 Nf5
>PV 00:28:02.555 12    -63 [wrong] d5 cxd5 Neg4+ Kf3 Nxd5 Rd1 Ngf6 exd5 Bg4+ Kg2
>Bxd1 Qxd1 Nxd5 Bc4 Nxf4+ gxf4 Qf6 Qd4 Qg6+ Kf2
>PV 01:10:42.221 12    -60 [wrong] a6
>PV 01:11:18.344 12    -63 [wrong] d5 cxd5 Neg4+ Kf3 Nxd5 Rd1 Ngf6 exd5 Bg4+ Kg2
>Bxd1 Qxd1 Nxd5 Bc4 Nxf4+ gxf4 Qf6 Qd4 Qg6+ Kf2
>PV 01:11:18.344 12    -61 [wrong] a6 Nd6 Qb6+ Kg2 Re6 Bxe5 Rxe5 c5 Rxc5 Bc4 Kf8
>Rhf1 Qc7 Qd4 Rc6 e5
>PV 01:16:55.406 13    -72 [wrong] a6 Nd6 Qb6+ Kg2 Re6 Bxe5 Rxe5 c5 Rxc5 Bc4 Rc6
>e5 Rxc4 Nxc4 Qc6+ Kg1 Qxc4 exf6
>PV 01:38:42.000 13    -69 [wrong] d5
>PV 02:39:09.082 13    -61 [wrong] d5 exd5 Bf5 Nc3 Neg4+ Kg2 Ne4 Qd4 Nxc3 Qxc3
>Be4+ Rxe4 Rxe4 Qf3 Nf6 Bd3 Re8 d6 Qb6 b3
>PV 10:00:21.924 14    -72 [wrong] d5 cxd5 Neg4+ Kf3 Nxd5 exd5 Rxe1 Qxe1 Qxd5+
>Qe4 Qxe4+ Kxe4 Nf2+ Ke3 Nxh1 Nc7 Rb8 Nd5 Ra8 Bg2 Nxg3 Bxg3 Kf8 Ke4
>PV 20:52:24.463 14    -69 [right] d6
>PV 24:55:45.681 14    -55 [right] d6 Qxd6 Bd7 Nc7 Neg4+ Kf3 Rxe4 Rxe4 Nxe4 Kxe4
>Bc6+ Kd4 Qxd6+ Bxd6 Rd8 Nd5 Rxd6 Bg2 Re6 Bh3 f5 Rf1 Re4+ Kc5
>PV 32:47:40.034 15    -55 [right] d6 Qxd6 Bd7 Nc7 Neg4+ Kf3 Rxe4 Rxe4 Nxe4 Kxe4
>Bc6+ Kd4 Qxd6+ Bxd6 Rd8 Nd5 Rxd6 Bg2 Re6 h3 Re2 Bf3 Rd2+ Kc3 Bxd5
>PV 97:40:55.887 16    -48 [right] d6 Qxd6 Bd7 Nc7 Neg4+ Kf3 Rxe4 Rxe4 Nxe4 Kxe4
>Bc6+ Kd4 Qxd6+ Bxd6 Rd8 Nd5 Rxd6 Bg2 Re6 a3 f5 h3 Nf6 Rf1 Bxd5 Bxd5 Nxd5
maybe after d6 Qxd6 Bd7 Nc7 Neg4+ Kf3 the best move is g5

I think the line with Rxe4 give white an advantage in the ending.

uri



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