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Subject: Re: Interesting position from Guenther Simon's RWBC

Author: Will Singleton

Date: 17:17:55 02/20/04

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On February 20, 2004 at 19:42:51, Anthony Cozzie wrote:

>On February 20, 2004 at 16:59:44, Tim Foden wrote:
>
>>Here is a position that occured between ZCHess 2.22 and Deep Sjeng 1.5 (ZChess
>>was white).
>>
>>Most engines (well the one's we tested anyway!) don't like white here, but
>>ZChess went on to win.
>>
>>[D]2r3k1/R4p2/1p2p1pp/1b1nQ3/3P3P/3q1PN1/5BP1/6K1 w - - 0 1
>>
>>The plan for white of Ne4 Kh2! Be1! Bd2 looks to win every time.  Any other
>>engines see the win for white here?
>>
>>(for the game see Guenther's site http://home.t-online.de/home/g.simon.rgbg/)
>>Cheers, Tim.
>
>It takes a while, but here you go.  Zappa prefers Be3-d2 over Be1-d2, but
>otherwise it is the correct plan, and with a reasonable plus score as well.
>Branching factor of *7* from 13->14 ply though :(
>
>1. Ng3-e4 Rc8-f8 2. Kg1-h2 h6-h5 3. Bf2-g3 Qd3-c2 4. Bg3-f4 Bb5-f1 5. Bf4-d2
>Qc2-b2 6. Kh2-g1 Qb2-b1 7. Bd2-h6 Bf1-e2 8. Kg1-h2
> = (-0.50)	Depth: 13/27	00:01:54.32	108306kN
>1. Ng3-e4++
> + (-0.25)	Depth: 14/28	00:05:14.44	300698kN
>1. Ng3-e4 Qd3-f1 2. Kg1-h2 Bb5-e8 3. Bf2-e3 Rc8-c2 4. Be3-d2 Rc2xd2 5. Ne4xd2
>Qf1-f2 6. Ra7-a8 Qf2xh4 7. Kh2-g1 Qh4-e7 8. Nd2-c4 f7-f6 9. Qe5-d6
> = (0.51)	Depth: 14/28	00:15:18.86	884816kN
>1. Ng3-e4 Qd3-f1 2. Kg1-h2 Bb5-e8 3. Bf2-e3 Rc8-c2 4. Be3-d2 Rc2xd2 5. Ne4xd2
>Qf1-f2 6. Ra7-a8 Qf2xh4 7. Kh2-g1 Qh4-e7 8. Nd2-c4 f7-f6 9. Qe5-b8 Nd5-c7
> = (0.66)	Depth: 15/30	00:26:44.89	1547890kN
>
>anthony

Ah, you beat me.  But I do get a +1 score, after 73 (!) minutes.  Our pv's are
the same through move 8.

10 -130 1273 4499805 Ne4 Qf1 Kh2 Be8 Qg3 h5 Qg5 Qc1 Nf6 Nxf6 Qxf6 Rc2 Qd8
11 -116 2266 8154618 Ne4 Qf1 Kh2 Be8 Kg3 h5 Nd6 Rc2 Qe1 Qxe1 Bxe1 Rc1 Nxe8 Rxe1
12 -21 8783 31349800 Ne4 Qe2 Kh2 h5 Be1 Bc4 Rxf7 Kxf7 Nd6 Kg8 Qxe2 Bxe2 Nxc8
13 -9 14694 52488869 Ne4 Rf8
14 -50 21612 78043738 Ne4 Rf8 Kh2 Qc2 Be1 Qc6 Bd2 f6 Qg3 g5 Nd6 Bf1 hxg5 hxg5
15 55 63557 226545925 Ne4 Qe2 Kh2 Bd3 Nf6 Kf8 Qd6 Kg7 Nxd5 exd5 Qxd5 Rf8 Bg3 Kg8
Bd6 Bc4
16 65 104595 371753588 Ne4 Qf1
17 109 441248 1504300313 Ne4 Qf1 Kh2 Be8 Be3 Rc2 Bd2 Rxd2 Nxd2 Qf2 Ra8 Qxh4 Kg1
Qe7 Qb8 Kf8 Nc4 h5 Nxb6 Nxb6 Qxb6

Will




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