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Subject: Re: Another example of very deep tactics that Computers cannot solve

Author: Janosch Zwerensky

Date: 06:28:01 12/08/01

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>Does your program see 15...Rxd2!!!.

Gambit Tiger 2 takes 25 minutes to go for Rxd2 on a K6/400 Mhz processor:

2kr3r/ppp2ppp/1b3nq1/4p2b/1PB1P3/2P1B3/P1QN1PPP/R4RK1 b - - 0 1

Analysis by Gambit Tiger 2.0:

1...Lxe3 2.fxe3 Td7 3.a4 Thd8 4.Tf2 Sg4
  µ  (-1.18)   Tiefe: 7   00:00:00  43kN
1...Lxe3 2.fxe3 Td7 3.a4 Thd8 4.Tf2 Td6 5.b5
  µ  (-1.12)   Tiefe: 7   00:00:00  53kN
1...Lxe3 2.fxe3 Td7 3.Tf2 Sg4 4.Tf3 Dg5 5.Sf1 Dh4
  µ  (-1.28)   Tiefe: 8   00:00:01  147kN
1...Lxe3 2.fxe3 Td7 3.Tf2 Sg4 4.Tf3 Thd8 5.Sb3 Dg5 6.De2
  µ  (-1.36)   Tiefe: 9   00:00:02  235kN
1...Lxe3 2.fxe3 Td7 3.Sf3 Lxf3 4.Txf3 Dxe4 5.Dxe4 Sxe4 6.Txf7 Txf7 7.Lxf7 Sxc3
  µ  (-1.38)   Tiefe: 10   00:00:06  497kN
1...Lxe3 2.fxe3 Td7 3.Sf3 Te8 4.Lb5 c6 5.Ld3 Lxf3 6.Txf3 Ted8 7.Tg3 Sg4
  µ  (-1.24)   Tiefe: 11   00:00:18  1528kN
1...Lxe3 2.fxe3 Td6 3.Sf3 Dxe4 4.Dxe4 Sxe4 5.g4 Lxg4 6.Sxe5 Lh3 7.Txf7 Te8 8.Tf3
Le6 9.Lxe6+ Texe6
  µ  (-1.28)   Tiefe: 12   00:01:24  8333kN
1...Lxe3 2.fxe3 Td6 3.Sf3 Dxe4 4.Dxe4 Sxe4 5.g4 Lxg4 6.Sxe5 Lh5 7.Sxf7 Lxf7
8.Txf7 Tg6+ 9.Kh1 Sxc3
  µ  (-1.32)   Tiefe: 13   00:02:15  13871kN
1...Lxe3 2.fxe3 Td6 3.Lb3 Le2 4.Sc4 Lxc4 5.Lxc4 Thd8 6.Df2 Tc6 7.Lb3 Txc3 8.Df5+
Dxf5 9.exf5 Txe3
  µ  (-1.40)   Tiefe: 14   00:04:26  28179kN
1...Lxe3 2.fxe3 The8 3.Tfe1 Te7 4.Lf1 Lg4 5.b5 Le6 6.a4 Ted7 7.Sf3 Dxe4 8.Dxe4
Sxe4 9.Sxe5 Td2
  -+  (-1.46)   Tiefe: 15   00:12:57  85096kN
1...Txd2 2.Dxd2 Lf3 3.Lg5 Lxe4 4.a4 a6 5.a5 La7 6.Tfe1 h6 7.Lxf7 Dxg5 8.Dxg5
hxg5 9.Le6+ Kb8
  -+  (-1.66)   Tiefe: 15   00:25:50  186303kN
1...Txd2 2.Dxd2 Lf3 3.Lg5 Td8 4.Dc1 Sxe4 5.Lxf7 Dxg5 6.Dxg5 Sxg5 7.Lc4 Ld5
8.Lxd5 Txd5 9.Tfd1 Txd1+
  -+  (-2.32)   Tiefe: 16   01:16:22  616391kN
1...Txd2 2.Dxd2 Lf3 3.Lg5 Td8 4.Dc1 Sxe4 5.Lxf7 Dxf7 6.Lxd8 Dg6 7.Lg5 Sxg5 8.Kh1
Lxg2+ 9.Kxg2 Se4+
  -+  (-2.28)   Tiefe: 17   01:30:41  726074kN



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