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Subject: Re: Exchange sac

Author: Tord Romstad

Date: 19:19:53 06/29/05

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On June 29, 2005 at 15:52:50, Richard Pijl wrote:

>>>[D]2r5/p2nnkNp/1pq1p1pP/3pPp2/2rP4/P1P3Q1/3B1PP1/R4RK1 b - -
>
>The only engine I've found to play Rxc3 so far is crafty.

Glaurung 0.2.4t likes it, with a draw score.  Analysis on an iMac G5 1.8 GHz:

2 -36 1 107 Kg8 Nh5
3 -32 1 268 Kg8 Nh5 Qb5
4 -89 4 1268 Kg8 Qh4 Kf8 Rab1
4 -84 6 2143 Kf8 Qg5 Ng8 Rab1
5 -83 10 3186 Kf8 Qg5 Ng8 Rab1 b5
6 -83 17 6797 Kf8 Qg5 b5 Rfb1 a5 Rb2
7 -80 22 11864 Kf8 Qg5 b5 Rab1 Ng8 Rfe1 a5
8 -88 36 29332 Kf8 Qg5 b5 Rab1 a5 Rb3 Ng8 Rfb1
9 -86 51 47200 Kf8 Qg5 b5 Rab1 a5 Rb3 a4 Rb2 Ng8
10 -92 130 158596 Kf8 Qg5 Ra4 Rfb1 Rc4 Rb4 b5 Rxc4 bxc4 Rb1
10 -90 183 249782 Rxc3 Qg5 Rc2 Bb4 Ng8 Rfe1 a5 Bd6 Qc4 Rad1
10 -60 227 337262 Rf8 Qg5 Nc8 g4 Nxe5 f3 Nd3 Qe3 Nb2 Qe5
11 -42 298 488634 Rf8 Qg5 Nc8 Rfb1 Kg8 Rb4 Rxb4 axb4 b5 Nh5 Rf7
12 -44 382 676266 Rf8 Qg5 Nc8 Rfb1 Kg8 Rb4 b5 Nh5 Ncb6 Rab1 Rxb4 Rxb4
13 -39 711 1478868 Rf8 Qg5 Nc8 Rfb1 Kg8 Rb4 b5 Nh5 Kh8 Rxc4 Qxc4 Nf6 Nxf6 exf6
14 -61 1120 2459047 Rf8 Qg5 Nc8 f3 Kg8 g4 Kh8 gxf5 exf5 f4 Rg8 Rab1 Qa4 Qg2
14 -21 2085 4697951 Rxc3 Bxc3 Qxc3 Qf4 Rc4 Rfd1 Nc6 Qg5 Nxd4 Qd8 Nxe5 Kh1 Ng4
Qd7+ Kf6
15 -22 2857 6474972 Rxc3 Bxc3 Qxc3 Qf4 Rc4 Rfd1 Nc6 Qg5 Nxd4 Qd8 Nxe5 Qe8+ Kf6
Qg8 Ke7 Ra2
16 -10 5386 12380014 Rxc3 Bxc3 Qxc3 Qf4 Rc4 Rfd1 Nc6 Qg5 Nxd4 Qd8 Nxe5 Qe8+ Kf6
Qb8 Nec6 Ne8+ Ke7 Qc8
17 +0 9970 23029155 Rxc3 Bxc3 Qxc3 Qf4 Rc4 Rfd1 Nc6 Qg5 Nxd4 Qd8 Nxe5 Qe8+ Kf6
Qb8 Ne2+ Kf1 Nf4 Qd8+ Kf7 Qe8+ Kf6 Qd8+
18 +0 15528 36248364 Rxc3 Bxc3 Qxc3 Qf4 Rc4 Rfd1 Nc6 Qg5 Nxd4 Qd8 Nxe5 Qe8+ Kf6
Qd8+ Kf7 Qe8+

Tord



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