Author: leonid
Date: 13:53:33 10/28/01
Go up one level in this thread
On October 28, 2001 at 14:46:00, Heiner Marxen wrote: >On October 28, 2001 at 08:42:37, Paul wrote: > >>On October 28, 2001 at 07:42:38, leonid wrote: >> >>>On October 28, 2001 at 07:41:40, leonid wrote: >>> >>>>Hi! >>>> >>>>I looked through few positions that I accumulated for the last few days and >>>>tried to find easiest. This one look to be just want it must be. >>>> >>>[D]4kq2/2qqqq2/1QNBPRN1/1QqqqqQ1/1Qb2rQ1/1Br2nR1/1Rn2bP1/Q6K w - - >>>> >>>>Please indicate your result. >>>> >>>>Thanks, >>>>Leonid. >> >>Hi, >> >>Mine says mate in 9 (p3/933) ... >> >>00:04 WM9 07 exd7+ Qfxd7 Qa8+ Qed8 Qxd7+ Qfxd7 Rxf8+ Rxf8 Qaxd8+ Qcxd8 Qbxd8+ >>Qxd8 Qxd8+ Kf7 Qxf8+ Ke6 Nd8# >> >>See ya, >>Paul > >Chest confirms that. It is the only key move for the mate in 9: > >PV: exd7+ Qfxd7 Qa8+ Qed8 Qxd7+ Qfxd7 Rxf8+ Rxf8 Qgxd8+ Qcxd8 Qbxd8+ Qxd8 Qxd8+ >Kf7 Qxf8+ Ke6 Nd8# > >is basically the same PV as Pretz gave. (K7/600, 350 MB, 12.8 minutes) >Chest's timing info shows a small EBF: > ># 1 0.00s 0kN 0.87 1- 0 ># 2 0.01s 0kN 1.00 1- 0 ># 3 0.03s [ 3.00] 1kN [ 11.59] 0.96 74- 0 ># 4 0.20s [ 6.67] 7kN [ 6.99] 1.07 715- 0 ># 5 1.19s [ 5.95] 49kN [ 6.62] 1.39 4601- 0 ># 6 4.01s [ 3.37] 167kN [ 3.39] 1.93 16827- 0 ># 7 21.45s [ 5.35] 904kN [ 5.40] 2.19 91178- 0 ># 8 105.15s [ 4.90] 4677kN [ 5.18] 2.48 435394- 0 ># 9 770.05s [ 7.32] 37971kN [ 8.12] 2.33 2780906- 609 Hi, Heiner! It is interesting to see that your program did much better that mine. Mine started with branching factor between 4 and 5 moves as 5. Between 7 and 8 moves it was already 13. Eight moves took 28 min. Solution by brute force, 9 moves deep, was found only after 28 min and 38 sec. >Einen schönen Tag wünscht >Heiner Wonderful, sunny day for you as well, Leonid.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.