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Subject: Re: Three studies by Kubbel

Author: Dieter Buerssner

Date: 15:33:15 05/12/05

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On May 12, 2005 at 15:53:31, Randy Lovelace wrote:

Results of Yace, Centrino 1.7 GHz, 800 MB hash.

>[D] 8/p5pq/8/p2N3p/k2P3P/8/KP3PB1/8 w - - bm Be4;
>
>
>pv 1.Be4 Qh6 2. Qd2 Be2 3. Qc2 Bd1 4. Qxd1 Nc3+

not found in 5 minutes.

>[D] 3b2q1/2kPp3/1p1pp3/1Pp4p/4QP2/p1P2P1P/2KPb3/5n2 w - - bm Qa8;
>
>
>pv 1.Qa8 Ne3+ 2.dxe3 Bd3+ 3.Kxd3 c4+ 4.Kxc4 e5+ 5. Kb4 Kxd7 6. Qc6+ Ke6
>    7. Qd5+ Kxd5 8. f5 e4 9. f4 Qg1 10. c4#

found in few seconds, with exactly your PV (until 7. Qd5)

>[D] 1B6/2p1p3/2P5/Qpk1K1p1/4p1qp/8/8/8 w - - bm Qc3+;
>
>pv 1. Qc3+ Kb6 2. Ba7+ Kxa7 3. Qa5+ Kb8 4. Qxb5+ Kc8 5. Qb7+ Kd8 6. Qb8+ Qc8
>    7.Qb3 e6 8. Qb7 h3 9. Kf6 h2 10. Qb4

Found after 16 minutes:

 861400762 14:36.2   0.11 13t  1.Qa7+ Kc4 2.Qd4+ Kb3 3.Qe3+ Ka4 4.Bxc7 b4
                               5.Bb6 h3 6.Qf2 Kb5 7.Qc5+ Ka4 8.c7 h2 9.Qc6+
                               Kb3 10.c8=Q {HT} {951}
 963641555 16:09.6   0.12 13t+ 1.Qc3+ Kb6 2.Ba7+ Kxa7 3.Qa5+ Kb8 4.Qxb5+ Kc8
                               5.Qb7+ Kd8 6.Qb8+ Qc8 7.Qb3 e6 8.Qb7 h3 9.Kf6
                               h2 10.Qb4 Qd7 11.cxd7 c5 12.Qxc5 h1=R
 963707707 16:09.7   0.52 13++ 1.Qc3+ Kb6 2.Ba7+ Kxa7 3.Qa5+ Kb8 4.Qxb5+ Kc8
                               5.Qb7+ Kd8 6.Qb8+ Qc8 7.Qb3 e6 8.Qb7 h3 9.Kf6
                               h2 10.Qb4 Qd7 11.cxd7 c5 12.Qxc5 h1=R
 963753817 16:09.7   1.52 13++ 1.Qc3+ Kb6 2.Ba7+ Kxa7 3.Qa5+ Kb8 4.Qxb5+ Kc8
                               5.Qb7+ Kd8 6.Qb8+ Qc8 7.Qb3 e6 8.Qb7 h3 9.Kf6
                               h2 10.Qb4 Qd7 11.cxd7 c5 12.Qxc5 h1=R
 967711665 16:12.8   6.52 13++ 1.Qc3+ Kb6 2.Ba7+ Kxa7 3.Qa5+ Kb8 4.Qxb5+ Kc8
                               5.Qb7+ Kd8 6.Qb8+ Qc8 7.Qb3 e6 8.Qb7 h3 9.Kf6
                               h2 10.Qb4 Qb7 11.cxb7 h1=Q 12.b8=Q+ Kd7
1025286581 16:59.3   6.52 13t  1.Qc3+ Kb6 2.Ba7+ Kxa7H 3.Qa5+H Kb8H 4.Qxb5+H
                               Kc8H 5.Qb7+H Kd8H 6.Qb8+H Qc8H 7.Qb3H e6H
                               8.Qb7H {HT}
1031398279 17:04.8   6.52 13.  1.Qc3+ Kb6 2.Ba7+ Kxa7 3.Qa5+ Kb8 4.Qxb5+ Kc8
                               5.Qb7+ Kd8 6.Qb8+ Qc8 7.Qb3 e6 8.Qb7

Regards,
Dieter



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