Author: Daniel Jackson
Date: 14:03:51 09/21/04
Go up one level in this thread
On September 21, 2004 at 02:25:00, Vincent Lejeune wrote: >On September 20, 2004 at 18:10:09, Vincent Lejeune wrote: > >>On September 20, 2004 at 10:53:42, Daniel Jackson wrote: >> >>>On September 19, 2004 at 17:46:14, Vincent Lejeune wrote: >>> >>>>On September 19, 2004 at 16:13:16, Daniel Jackson wrote: >>>> >>>>>On September 19, 2004 at 02:21:18, Dann Corbit wrote: >>>>> >>>>>>On September 19, 2004 at 02:11:37, Dann Corbit wrote: >>>>>> >>>>>>>On September 18, 2004 at 15:59:24, Daniel Jackson wrote: >>>>>>> >>>>>>>>[D]rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w >>>>>>> >>>>>>>So far, on ply 3 (85,070,720 nodes) Shredder 7.04 on a 2.2 GHz 64 bit AMD >>>>>>>machine with 400 MB hash -- likes Qf2xf7+ with a score of +10.15 >>>>>>> >>>>>>>I set it for 100,000 seconds and we'll see what it says on Monday. >>>>>> >>>>>>Finished ply 4 in about 11 minutes (br.f.~3) with the same key move and a score >>>>>>of about +9 pawns. >>>>>> >>>>>>I estimate that it will finish ply 8 or 9. >>>>> >>>>>I appreciate the effort! Thank You! I don't know if anyone has tried or found a >>>>>solution to this problem? >>>> >>>>I'll let TheKing (the emperor of chechmate) think overnight (may be more) on it, >>>>after 1.Qaxf7 Qxf7 >>> >>>Thanks Vincent! >>> >>>I think you may find the mate very deep, but I believe 1.Qaxf7 is most likely >>>the *key* move...for the shortest route to a long mate. Maybe no program can >>>find a mate this deep, and no human OTB? >> >> >>Bad news, I let TK overnight on the position , when I go to work, I checked the >>analysis : no mate (the line was : 1.Qaxf7+ Qxf7 2.Rxa7 ... score +8), I decided >>to let the comp think until i go back from work, 9h later, when I checked the >>engine come back to depth 1 !! >>I decide to restart the analysis for this night after 1.Qaxf7+ Qxf7 2.Rxa7... > >After 8 hours (and let it 8 more hours) > >[d]rnbqkbnr/Rqqqqq1q/8/8/8/8/1QQQQQQQ/1NBQKBNR b Kkq - 0 2 > >Time Depth Score Positions Moves >7:14 1/7 8.34 82563323 2...Qcxc2 3.Q1xc2 Qxa7 4.Qhxh7 > Qaxf2+ 5.Qxf2 Rxh7 6.Rxh7 Qxf2+ > 7.Kxf2 >15:56 1/8 9.20 188717489 2...Qcxc2 3.Q1xc2 Qxd2+ 4.Bxd2 > Rxa7 5.Qhxh7 Rxh7 6.Rxh7 Qxf2+ > 7.Qxf2 Qxe2+ 8.Qxe2+ Be7 >35:56 1/8 9.07 449544072 2...Qcxh2 3.Rxb7 Qxf2+ 4.Qxf2 Qxd2+ > 5.Nxd2 Qxf2+ 6.Kxf2 Qf7+ 7.Ndf3 > Bxb7 8.Qxd8+ Kxd8 9.Qxe7+ Nxe7 > 10.Rxh8 >1:00:46 1/9 11.34 803963638 2...Qcxh2 3.Rxb7 Bxb7 4.Rxh2 Bxg2 > 5.Qxd7+ Nxd7 6.Rxh7 Rxh7 7.Qxf7+ > Rxf7 8.Bxg2 >1:40:41 1/9 10.39 1393340012 2...Qxg2 3.Qhxg2 Rxa7 4.Rxh7 Rxh7 > 5.Qxf7+ Rxf7 6.Qxg8 Qxd2+ 7.Qdxd2 > Qxc2 8.Qbxc2 Bd7 9.Qxe7+ Qxe7+ > 10.Be2 >3:21:39 1/10 11.05 2897968999 2...Qxg2 3.Qhxg2 Rxa7 4.Qxh8 Qhf5 > 5.Qcxf5 Qdxf5 6.Qxf5 Qxd2+ 7.Nxd2 > Bxf5 8.Qhxg8 Qxg8 9.Qxg8 Nc6 10.Ngf3 > Qb6 Thanks Vincent! [Event ""] [Site ""] [Date "2004.9.21"] [Round ""] [White "Chessmaster"] [Black "Chessmaster"] [TimeControl "-"] [Result "*"] [Setup "1"] [FEN "rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w KQkq - 0 1"] 1.Qaxf7+ Qxf7 2.Rxa7 Qxg2 3.Qhxg2 Rxa7 4.Qxh8 Qhf5 5.Qcxf5 Qdxf5 6.Qxd8+ Qxd8 7.Qxd8+ Kxd8 8.Qxf5 Qxf5 9.Qd4+ Ke8 10.Qxa7 Qxb1 11.Qxg8 Qxc1+ 12.Kf2 Qf4+ 13.Nf3 Qxe2+ 14.Bxe2 Nd7 15.Qe6+ Kd8 16.Qa5+ Qc7 17.Qg5+ Nf6 18.Qgxf6+ Qe7 19.Rd1+ Bd7 20.Qxd7# * Daniel
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