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Subject: Re: Test Position = GM Leonid Stein vs GM Semen Furman, Moscow 1969

Author: Zach Wegner

Date: 23:07:15 12/03/04

Go up one level in this thread


On December 03, 2004 at 12:02:58, José Antônio Fabiano Mendes wrote:

>         GM Leonid Stein vs GM Semen Furman, 1969
>
>  [D]r1k2b1r/2qn1ppp/p1bp1n2/3P2B1/P7/1pP3P1/1P2QPBP/R3R1K1 w
>  And here White played 17. dxc6, when he should have played 17. Qe8+!!
>  Source ==> http://www.chessgames.com/perl/chessgame?gid=1132445

Here ZCT takes less than a second on a 1.25 GHz G4.

  6     0.537    -0.82    1. dxc6 Ne5 2. Ra3 Nxc6 3. Rxb3 d5 (45k)
  6     0.872 >= -0.61    1. Qe8+!! (82k)
  6     0.999    +0.87    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 d5 5.
Rxa8 Qxd7 6. Be3+ (97k)
< 6>    1.044    +0.87    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 d5 5.
Rxa8 Qxd7 6. Be3+ (103k)
  7     1.124 <= +0.67    1. Qe8+?? (112k)
  7     1.345 >= +1.07    1. Qe8+!! (138k)
  7     1.582    +1.31    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
a5+ Kb5 6. Rxa8 (173k)
< 7>    1.635    +1.31    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
a5+ Kb5 6. Rxa8 (181k)
  8     1.725 <= +1.11    1. Qe8+?? (193k)
  8     2.332    +1.01    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
Rxa8 d5 6. Rb8+ Kc7 7. Rxb3 (273k)
< 8>    2.544    +1.01    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
Rxa8 d5 6. Rb8+ Kc7 7. Rxb3 (306k)
  9     4.024    +1.12    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
a5+ Kb5 6. Rxa8 Qc7 7. Re8 Qc5H (512k)
< 9>    4.458    +1.12    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
a5+ Kb5 6. Rxa8 Qc7 7. Re8 Qc5H (579k)
 10     7.775 >= +1.32    1. Qe8+!! (1074k)
 10    11.114    +1.64    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
Rxa8 d5 6. Be3+ Kc6 7. Rxa6+ Kc7 8. Bxd5 (1571k)
<10>   12.853    +1.64    1. Qe8+ Nxe8 2. Rxe8+ Kb7 3. dxc6+ Kb6 4. cxd7 Qxd7 5.
Rxa8 d5 6. Be3+ Kc6 7. Rxa6+ Kc7 8. Bxd5 (1816k)
 11    19.689 >= +1.84    1. Qe8+!! (2738k)
 11    36.369    +2.25    1. Qe8+ Nxe8 2. Rxe8+ Qd8 3. Rxd8+ Kc7 4. dxc6 Rxd8 5.
Bxd8+ Kxd8 6. cxd7 Kxd7 7. Ra3 Ke8 8. Rxb3 (5079k)
<11>   41.915    +2.25    1. Qe8+ Nxe8 2. Rxe8+ Qd8 3. Rxd8+ Kc7 4. dxc6 Rxd8 5.
Bxd8+ Kxd8 6. cxd7 Kxd7 7. Ra3 Ke8 8. Rxb3 (5857k)

Regards,
Zach



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