Author: Pete Galati
Date: 22:48:47 01/21/01
Go up one level in this thread
On January 22, 2001 at 01:14:32, Uri Blass wrote: >On January 21, 2001 at 19:39:16, Pete Galati wrote: > >>On January 21, 2001 at 19:26:43, Paul wrote: >> >>>On January 21, 2001 at 19:24:32, Pete Galati wrote: >>> >>>>On January 21, 2001 at 19:17:18, Paul wrote: >>>> >>>>>On January 21, 2001 at 19:14:08, John Coffey wrote: >>>>> >>>>>>On January 21, 2001 at 16:56:42, Paul wrote: >>>>>> >>>>>>>On January 21, 2001 at 11:56:09, leonid wrote: >>>>>>> >>>>>>>>Hi! >>>>>>>> >>>>>>>>This mate position is very handy when you want to check the limits in your >>>>>>>>program. It is amusing also. Number of legal moves for both sides is slightly >>>>>>>>over one hundred. >>>>>>>> >>>>>>>> knq3q1/rq1q1qbQ/Qq2Q3/1Qn1Q2B/Q1qN1Q1r/4K1B1/1q4QR/1N1q3Q white to go. >>>>>>>> >>>>>>>>If you will solve, it will be nice if you will indicate your result. >>>>>>>> >>>>>>>>Thanks, >>>>>>>>Leonid. >>>>>>> >>>>>>>Hi again Leonid! >>>>>>> >>>>>>>It took my program 45 minutes ... phewwwwwww! >>>>>>>Here's the line, a mate in 12: >>>>>>> >>>>>>>1. Qxa7+ Qxa7 2. Qxa7+ Kxa7 3. Qeb6+ Ka8 4. Qgxb7+ Qdxb7 5. Qxb8+ Qxb8 >>>>>>>6. Qxb8+ Qxb8 7. Q6a5+ Na6 8. Qaxa6+ Qa7 9. Qg8+ Bf8 10. Qxf8+ Qe8+ >>>>>>>11. Qfxe8+ Qc8 12. Qxc8x >>>>>>> >>>>>>>I think I'm going to skip your next problem, that will be too difficult >>>>>>>for me ;) >>>>>>> >>>>>>>Greetings, >>>>>>>Paul >>>>>> >>>>>>Fritz 6 has been thinking for 3 hours and 45 minutes, shows no analysis and >>>>>>still says 1/1 ply. I wonder what is happening with the transposition table, >>>>>>:-). >>>>>> >>>>>>John Coffey >>>>> >>>>>:) >>>>> >>>>>It's the QSearch blowing up, you have to control that somehow ... >>>>>and that's easier when you're the author of the program in question :) >>>>> >>>>>Paul >>>> >>>>I'd try rebooting and try again. Something sounds broken with searching on a >>>>position for 3 hours and being at 1/1 ply. That's just not right (Louie >>>>Anderson impression). >>>> >>>>Pete >>> >>>Well, I *was* waiting for your solutions from Comet & Junior ... >>>or have you been rebooting al this time ;) >>> >>>Paul >> >>Oops, I must be becoming known for what I run analysis through, but I figure >>everyone else will use Fritz and Crafty etc., so why should I? > >It is not truth. > >I used Junior to find the mate in 12 line and not Fritz and Crafty. It was a generalization. Fritz and Crafty seem to be the most common. > >Fritz and Crafty are not good programs to use in complicated positions when both >sides have 9 queens. I'll try to remember that next time I see 9 queens. > > >> >>Actually, I've been running Junior on that other position that you pasted in >>that you said you gotta go deep to get an answer on, and Junior doesn't seem to >>be coming up with anything (that I know of)' > >> >>New position >>5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - 0 1 > >You seem to use always the wrong program. I tend to use what ammuses me the most at the moment. Not the best way to do it. >Junior is the wrong program to solve mate in 30 when Rebel solves it with no >problems. > >Uri I agree. I gave up. Actually, I didn't know that Rebel solved it in mate in 30 moves when I started. He said it was deep, so I figured that Junior searched about as fast as anything I had, but I only have so much time. I'm trying to be carefull about which Chess programs end up on this computer, so I'm not going to have a Chess program that's ideal for every position. Pete
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