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Subject: Re: Variation that casts some doubts on the line?!

Author: Dieter Buerssner

Date: 11:28:59 03/21/04

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On March 20, 2004 at 07:07:01, Dan Andersson wrote:

> Here is one line that comes from my organic computer. It questions the relative
>values of the moves 1. Nxh7 and 1. Nh5+.
> 1. Nh5+ Kh8 2. Qh6 Rg8 3. Nf6 Rg7 4. Rf3 it carries enormous threats to the
>black king. Is there a way to save the variation?

Yace switches several times, even after hours. In between it shows your
variation, but later comes up with 1. Ne4:

2138280823 55:53.7   2.45 13t  1. Nxh7 Bc8 2. Nxf8 Bxf5 3. Bxf5 Rxd1 4. Rxd1
                               Bxb2 5. Nd7 Qa4 6. Rb1 Qd4 7. Qg5 Nxe5 8. Qf6+
                               Kg8 9. Rxb2 Qxb2 {110}
2229471566 58:13.6   2.46 13t+ 1. Nh5+ Kh8 2. Qh6 Rg8 3. Nf6 Rg7 4. Rf3 Qb3 5.
                               Rdf1 Qd1 6. Rxd1 Nxe5 7. Rh3H {HT} {491}
2412850460 1:02:51   2.73 13t  1. Nh5+ Kh8 2. Qh6 Rg8 3. Nf6 Rg7 4. Rf3 Qb3 5.
                               Rdf1 Qxd3 6. Rxd3 Rxd3 7. Nxh7 Rh3 8. Qxh3 Rxh7
                               9. Qxa3 Nxe5 10. Qxa7 {311}
2143642199 2:35:29   2.73 13.  1. Nh5+ Kh8 2. Qh6 Rg8 3. Nf6 Rg7 4. Rf3 Qb3 5.
                               Rdf1 Qxd3 6. Rxd3 Rxd3 7. Nxh7 Rh3 8. Qxh3 Rxh7
                               9. Qxa3 Nxe5 10. Qxa7 {311}
2840104986 2:52:06   2.73 14t  1. Nh5+ Kh8 2. Qh6 Rg8 3. Nf6 Rg7 4. Rf3 Qb3 5.
                               Rdf1 Qxd3 6. Rxd3 Rxd3 7. Nxh7 Rh3 8. Qxh3 Rxh7
                               9. Qxa3 Nxe5 10. Qxa7 {311}
 150122175 3:35:09   2.74 14t+ 1. Nxh7 Bc8 2. fxg6 Qe6 3. Nxf8 Rxf8 4. Rxf7+
                               Rxf7 5. gxf7 Nxe5 6. Qg5+ Kxf7 7. Bh7 Ng6 8.
                               Bxg6+ Qxg6 9. Rf1+ Bf5 10. Rxf5+ Kg7 11. bxa3
                               Kh8 {500}
1431134922 4:13:51   3.13 14++ 1. Nxh7 Bc8 2. fxg6 Qe6 3. Nxf8 Rxf8 4. Rxf7+
                               Rxf7 5. gxf7 Nxe5 6. Qg5+ Kxf7 7. Bh7 Ng6 8.
                               Bxg6+ Qxg6 9. Rf1+ Bf5 10. Rxf5+ Kg7 11. bxa3
                               Kh8 {500}
3069450567 4:58:47   3.88 14t  1. Nxh7 Bc8 2. fxg6 Qe6 3. Nxf8 Rxf8 4. Rxf7+
                               Rxf7 5. gxf7 Nxe5 6. Qg5+ Kxf7 7. Bh7 Qf6 8.
                               Qg8+ Ke7 9. Qd8+ Kf7 10. Qc7+ Bd7 11. Rxd7+
                               Nxd7 12. Qxd7+ Kf8 13. bxa3 {HT} {350}
1238932334 7:33:00   3.89 14t+ 1. Ne4 h6 2. f6+ Kh7 3. Qh3 Rh8 4. Ng5+ Kg8 5.
                               Bxg6 hxg5 6. Rxd8+ Nxd8 7. Rd1 Bxg2+ 8. Qxg2
                               Rxh2+ 9. Qxh2 fxg6 10. Rxd8+ Kf7 11. Rd7+ Kg8
                               12. f7+ Kf8 13. Rd8+ Ke7 14. f8=Q+ Ke6 {911}
2924999439 8:17:04   4.02 14t  1. Ne4 Rg8 2. f6+ Kf8 3. Bc4 Qxc4 4. Rxd8+ Nxd8
                               5. Qh6+ Ke8 6. Nd6+ Kd7 7. Nxc4 Bb4 8. Ra1 a5
                               9. Nxb6+ Ke6 {HT} {301}

Regards,
Dieter



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