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Subject: Re: Try to solve mate.

Author: Heiner Marxen

Date: 10:14:33 09/16/02

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On September 16, 2002 at 12:23:53, Olaf Jenkner wrote:

>>
>>Chest completed its job:
>># 11  16881.61s [  4.85]  1819969kN [  4.88]  4.43  226032315- 222833082
>>
>>PV: Q8xe6+ Qdxe6 Qff3+ Rxf3 Qxf3+ Qgg3 Nf4+ Kxh4 Qxg3+ Qxg3 Nf3+ Qxf3 Ng2+ Kh3
>>Qh4+ Kxg2 Bhxf3+ Kg1 Qxh1+ Kxf2 Qg2#
>>
>> Q8xe6+ Qdxe6 Qff3+  Rxf3  Qxf3+ ...+8
>>                     Qhg3  Nf4+  ...+3
>>                     -*-   Nf4+  ...+2
>>        Qcxe6 Nxg1+  Qbxg1 Qef5+ ...+5
>>                     Qhxg1 Bg4+  ...+5
>>        Rf5   Bg4+   Kxh4  Nxf5#
>>                     Qxg4  Qxg4#
>>        Qg4   Qfxg4#
>>
>>I.e. the key move is unique, and Chest needed 4.9 hours.
>>
>>Cheers,
>>Heiner
>
>
>1.De8-e6 Dd6-e6 2.Df4-f3 Ta3-f3 3.De4-f3 Dg1-g3 4.Se2-f4 Kh3-h4 5.Df3-g3 Dh2-g3
>6.Sd4-f3 Dg3-f3 7.Sf4-g2 Kh4-h3 8.Dc4-h4 Kh3-g2 9.Lh5-f3 Kg2-g1 10.Dh4-h1 Kg1-f2

Our programs appear to agree quite nicely here.

>11.Dh1-g2#
> .               .               .               .               .
>.               .               .              9...     Kg2-f1 10.Lf3-g2 Kf1-g1
>11.Dh4-h1#
> .               .               .               .               .
>.               .               .               .              10.Dh4-h1 Kf1-f2
>11.Dh1-g2#
> .               .               .               .               .
>.               .               .              9.Lc6-f3 Kg2-f1 10.Dh4-h1 Kf1-f2
>11.Dh1-g2#
> .               .               .               .               .
>.               .               .              9...     Kg2-g1 10.Dh4-h1 Kg1-f2
>11.Dh1-g2#
> .               .               .               .               .
>.              7...       bel. 8.Dc4-h4#
> .               .              3...     Dh2-g3 4.Se2-f4 Kh3-h2 5.Df3-h1 Dg1-h1
>6.Lh4-g3 Kh2-g1 7.Dc2-b1 La2-b1 8.Dc4-c1 Da6-f1 9.Sd4-e2 De6-e2 10.Sf4-e2#
> .               .               .               .               .
>.               .              8...     De6-e1 9.Dc1-e1 Da6-f1 10.Sd4-e2/Sf4-e2#
> .               .               .               .               .
>.              7...     De6-e1 8.Db1-e1#
> .               .               .              4...     Kh3-h4 5.Bf2-g3 Dg1-g3
>6.Sd4-f5 Ta5-f5 7.Sf4-g2 Kh4-g5 8.Df3-g3 Kg5-f6 9.Dc4-h4 Tf5-g5
>10.Dg3-g5/Dh4-g5#
> .               .               .               .               .
>.               .              8...       bel. 9.Dc4-h4#
> .               .               .               .               .
>.              7...     Kh4-h3 8.Dc4-h4#
> .               .               .               .               .
>6...     De6-f5 7.Sf4-g2 Kh4-g5 8.Df3-g3 Df5-g4 9.Dg3-h4 Dg4-h4 10.Dc4-h4#
> .               .               .               .               .
>.               .              8...     Kg5-f6 9.Sh6-g8 Df8-g8 10.h7-g8S#
> .               .               .               .               .
>.               .              8...       bel. 9.Dc4-h4#
> .               .               .               .               .
>.              7...     Kh4-h3 8.Dc4-h4#
> .               .               .               .               .
>6...     Kh4-g5 7.Df3-g3 Sh1-g3 8.Sf4-e6 Kg5-f6 9.Sh6-g4#
> .               .               .               .               .
>.               .              8...       bel. 9.Dc4-h4#
> .               .               .               .               .
>.              7...     Kg5-f6 8.Dg3-g6 Kf6-e5 9.Dc4-e4/Sf4-d3/Sh6-g4#
> .               .               .               .              5...     Sh1-g3
>6.Sd4-f5 Sg3-f5 7.Sf4-g2 Kh4-g5 8.Dc2-f5  nebst 9.Dc4-h4#
> .               .               .               .               .
>6...     Kh4-g5 7.Sf4-e6 Kg5-f6 8.Sh6-g4#
> .               .               .               .               .
>.              7...     Dc8-e6 8.Dc4-h4#
> .               .               .               .               .
>6...     De6-f5 7.Sf4-g2  nebst 8.Dc4-h4#
> .               .               .               .               .
>6...     Ta5-f5 7.Df3-g4#
> .               .               .               .              5...     Kh4-g5
>6.Sf4-e6 Dc8-e6 7.Sd4-e6#
> .               .              3...     Kh3-h4 4.Sd4-f5 Kh4-g5 5.Tf6-g6 De6-g6
>6.Dc4-g4 Kg5-f6 7.Sf5-g3 Dg6-f5 8.Dg4-g6 Kf6-e5 9.Df3-e3 Df5-e4 10.De3-e4#
> .               .               .               .               .
>.               .              8...     Kf6-e7 9.Dg6-d6#
> .               .               .               .               .
>.              7...     Dc8-f5 8.Dg4-g6 Kf6-e5 9.h7-h8L Df8-f6 10.Df3-f5/Dg6-f5#
> .               .               .               .               .
>.               .               .              9...     Df5-f6
>10.Df3-e3/Df3-e4/Df3-f5/Dg6-e4/Dg6-f5#
> .               .               .               .               .
>.               .               .              9...       bel.
>10.Df3-f5/Dg6-f5/Dg6-d6#
> .               .               .               .               .
>.               .              8...     Kf6-e7 9.Dg6-d6#
> .               .               .               .               .
>.              7...     Ta5-f5 8.Dg4-g6 Kf6-e7 9.Dg6-d6#
> .               .               .               .               .
>.               .              8...     Kf6-e5 9.Df3-e3/Df3-e4/Sh6-g4#
> .               .               .               .               .
>.              7...     Kf6-e5 8.h7-h8D Dg6-g7 9.Dg4-e4#
> .               .               .               .               .
>.               .              8...     Dg6-f6 9.Df3-e3/Df3-e4/Df3-f4/Dg4-e4#
> .               .               .               .               .
>.               .              8...       bel. 9.Df3-f4#
> .               .               .               .               .
>.              7...     Kf6-g7 8.Df3-f8 Kg7-h7 9.Dg4-g6/Lh5-g6#
> .               .               .               .               .
>.              7...     Kf6-e7 8.Df3-f8#
> .               .               .               .               .
>6...     Dg1-g4 7.Df3-g4 Kg5-f6 8.Dg4-g6 Kf6-e5 9.Sh6-g4#
> .               .              3...     Sh1-g3 4.Se2-f4 Kh3-h4 5.Sf4-g2 Kh4-h3
>6.Dc4-e6 La2-e6 7.Df3-f5 Le6-f5 8.Sg2-f4 Kh3-h4 9.Sd4-f3#
> .               .               .               .               .
>.              7...       bel. 8.Lh5-g4#
> .               .               .               .               .
>6...     Dc8-e6 7.Lh5-g4 De6-g4 8.Df3-g4#
> .               .               .               .               .
>6...     Ta5-f5 7.Df3-g4/Lh5-g4#
> .               .               .               .              5...     Dg1-g2
>6.Sd4-f5 Kh4-g5 7.Df3-f4 Kg5-h5 8.Df4-g4#
> .               .               .               .               .
>.              7...     Kg5-f6 8.Sh6-g4#
> .               .               .               .               .
>6...     Kh4-h3 7.Df3-g4/Dc4-g4/Dc4-h4/Lh5-g4#
> .               .               .               .              5...     Dh2-g2
>6.Sd4-f5  nebst 7.Dc4-h4#
> .               .               .               .              5...     Kh4-g5
>6.Sd4-e6 Dc8-e6 7.Dc4-f4#
> .              2...     Dh2-g3 3.Se2-f4 Kh3-h2 4.Lh4-g3 Dg1-g3 5.Df3-g2 Dg3-g2
>6.De4-g2#
> .               .               .              4...     Sh1-g3 5.Df3-g2 Dg1-g2
>6.De4-g2#
> .               .              3...     Kh3-h4 4.Sf4-g2 Kh4-h3 5.De4-h4#
> .               .               .              4...     Kh4-g5 5.De4-g6#
> .              2...     Dg1-g3 3.Se2-f4 Kh3-h4 4.Sf4-g2 Kh4-h3 5.De4-h4#
> .               .               .              4...     Kh4-g5 5.De4-g6#
> .              2...     Sh1-g3 3.Se2-f4 Kh3-h4 4.Sf4-g6 Kh4-h3 5.De4-h4#
> .               .               .              4...     Kh4-g5 5.De4-f4#
>1...     Dc8-e6 2.Se2-g1 Db1-g1 3.De4-f5 Ta5-f5 4.Lh5-g4 Kh3-h4 5.Sh6-f5 De6-f5
>6.h7-h8D Df5-h7 7.Dc2-h7 Df8-h6 8.Dh7-h6#
> .               .               .               .               .
>6...     Df8-h6 7.Tf6-h6 Df5-h5 8.Th6-h5#
> .               .               .               .               .
>.              7...     Dd6-h6 8.Sd4-f5#
> .               .               .               .               .
>6...     Df8-h8 7.Td8-h8 Df5-h5 8.Th8-h5#
> .               .               .               .               .
>.              7...     Df5-h7 8.Dc2-h7/Th8-h7#
> .               .               .               .               .
>6...     Df5-h5 7.Dh8-h5#
> .               .               .              4...     Dg1-g4 5.Df4-g4#
> .               .              3...     De6-f5 4.Dc2-f5 Ta5-f5 5.Lh5-g4 Dg1-g4
>6.Df4-g4#
> .               .               .               .              5...     Kh3-h4
>6.Sh6-f5#
> .               .               .              4...     Dg1-g4 5.Df4-g4/Df5-g4#
> .              2...     Dh2-g1 3.Lh5-g4 Kh3-h4 4.Lg4-f5 Dd6-f4 5.De4-f4 Kh4-h5
>6.Df4-h4 Kh5-h4 7.Sd4-f3 Kh4-h5 8.Dc4-h4#
> .               .               .               .              5...     Dg1-g4
>6.Df4-g4#
> .               .               .              4...     Dg1-g4 5.Df4-g4#
> .               .               .              4...     Kh4-h5 5.Df4-h4#
> .               .              3...     Dg1-g4 4.Df4-g4 De6-g4 5.De4-g4 Kh3-h2
>6.Dg4-g2#
> .               .               .              4...     Kh3-h2 5.De4-g2/Dg4-g2#
> .               .              3...     De6-g4 4.Df4-g4 Dg1-g4 5.De4-g4 Kh3-h2
>6.Dg4-g2#
> .               .               .              4...     Kh3-h2 5.Dg4-g2 Dg1-g2
>6.De4-g2#
>1...     Ta5-f5 2.De4-f5 Dg1-g4 3.Df4-g4/Df5-g4#
>
>
>Gustav needed 8.1 hours on a PII 333 MHz
>OJe

Wow!  That is quite an impressive time, compare with my 5 hours Athlon 1500+.
Did you give any hints to Gustav?

Have you done any systematic comparison of Gustav against Chest?
Or was it just lucky, this time?

Cheers,
Heiner



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