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Subject: Re: Queen sacrifice for position - Junior7 finds solution

Author: Kurt Utzinger

Date: 01:48:40 12/09/01

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Junior7 on Ath 1.4/256 finds the winning move:

Neue Stellung
r4rk1/1bp3pp/1pn1q3/p2p1pN1/3Pn3/PPN1P1P1/2Q2PBP/R1R3K1 b - - 0 1

Analysis by Junior 7:

1...Sxg5 2.Lxd5 Sf3+ 3.Kh1 Scxd4 4.Lxe6+
  +-  (1.63)   Tiefe: 3   00:00:00
1...Dc8 2.Lxe4 dxe4
  ²  (0.63)   Tiefe: 3   00:00:00
1...Dd7 2.Scxe4 fxe4
  ²  (0.44)   Tiefe: 3   00:00:00
1...De7 2.Sgxe4 dxe4
  ²  (0.37)   Tiefe: 3   00:00:00  1kN
1...Dh6 2.Sgxe4 dxe4
  ²  (0.27)   Tiefe: 3   00:00:00  1kN
1...Dh6 2.h4 Tad8 3.Scxe4 fxe4
  ²  (0.27)   Tiefe: 6   00:00:00  6kN
1...Dh6 2.Sgxe4 dxe4 3.Sb5 Tac8 4.Dc4+ Kh8 5.d5 Se5
  ²  (0.51)   Tiefe: 9   00:00:00  105kN
1...Dg6 2.Sgxe4 dxe4 3.Lf1 La6 4.Lxa6 Txa6
  ²  (0.43)   Tiefe: 9   00:00:00  218kN
1...Dg6 2.Sgxe4 dxe4 3.Sd5 Df7 4.Dc4 Sxd4 5.Lxe4 fxe4 6.Se7+ Kh8 7.Dxf7 Txf7
  ²  (0.47)   Tiefe: 12   00:00:01  973kN
1...Dd6 2.Scxe4 fxe4 3.Sxe4 dxe4 4.Lxe4 Sd8 5.Lxh7+ Kh8 6.h3 Lf3
  ²  (0.26)   Tiefe: 12   00:00:03  4057kN
1...Dd6 2.h4 Tae8 3.Sh3 a4 4.bxa4 Kh8 5.h5 Sxc3 6.Dxc3
  ²  (0.37)   Tiefe: 15   00:00:13  14514kN
1...Dd6 2.h4 Tae8 3.Sh3 a4 4.bxa4 Ta8 5.Sxe4 fxe4 6.h5 Tf5
  ²  (0.51)   Tiefe: 17   00:01:08  71057kN
1...Dg6 2.h4 Sxg5 3.Sxd5 Se4 4.Dxc6 Dxc6 5.Se7+ Kf7 6.Sxc6 Ke6 7.Lxe4 fxe4 8.Se5
c5 9.Kg2 Ld5
  ²  (0.48)   Tiefe: 17   00:03:29  217153kN
1...Sxg5 2.Lxd5 Sf3+ 3.Kh1 Scxd4 4.Lxe6+ Sxe6 5.Da2 Sd2+ 6.Kg1 Sg5 7.h4 Sgf3+
8.Kg2 Se1+ 9.Kh2 Sdf3+ 10.Kh1 Sg5+
  ²  (0.33)   Tiefe: 17   00:04:36  260247kN
1...Sxg5 2.Lxd5 Sf3+ 3.Kh1 Scxd4 4.Lxe6+ Sxe6 5.Da2 Sd2+ 6.Kg1 Sg5 7.h4 Sgf3+
8.Kg2 Se1+ 9.Kh2 Sdf3+ 10.Kh1 Sd2+
  ²  (0.27)   Tiefe: 18   00:07:36  420802kN
1...Sxg5 2.Lxd5 Sf3+ 3.Kh1 Scxd4 4.Lxe6+ Sxe6 5.Da2 Sd2+ 6.Kg1 Sg5 7.h3 Tfd8
8.e4 Sdxe4 9.Sxe4 Lxe4 10.b4+ Kh8
  =  (0.15)   Tiefe: 19   00:14:33  796362kN
1...Sxg5 2.Lxd5 Sf3+ 3.Kh1 Scxd4 4.Lxe6+ Sxe6 5.Da2 Sd2+ 6.Kg1 Sg5 7.h3 Tad8
8.b4+ Kh8 9.Td1 Sdf3+ 10.Kg2 Sh4+
  =  (0.14)   Tiefe: 20   00:28:28  1593774kN

(Utzinger, MyTown 09.12.2001)



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