Author: leonid
Date: 18:01:15 08/18/00
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On August 18, 2000 at 08:14:03, Jari Huikari wrote: >On August 18, 2000 at 07:43:06, leonid wrote: > >>>In Nero 5 I extend one ply in ordinary search when I find somewhere only one >>>legal move for either side. (E.g. that mate in 8 is found in searchdepth=8 >>>with 7 extensions.) It's slower in finding some mates, but it also finds >>>forced lines to capture pieces. > >>What is mate in 8 with "7 extensions"? Sevent moves to search as maximum in the >>next ply? If ply have for sinstance 35 moves, make search only 7? > >Position is this: > >[D]kbb2rr1/1p6/p3p1q1/PN1pB3/1n6/R3Q3/5PB1/6K1 W - - > >Searchdepth=8 looks lines having four moves of white and four moves of black. >After 1. Qa7+ black has only one reply 1...Bxa7 which causes this line to >be searched to depth 9. In the mating line there are still 6 black's forced >moves, so all in all that line is searched to depth 15 while usual lines are >searched to depth 8. > >Was this explanation better? Clear! And your writing is 100% different from mine. This is why I was so slow in understanding. >BTW: Nero is still very unfinished program. I develope it very slowly. The same for me. Became very slow during the last 4 years. I am in writing already for long 7 years. All the best in your programming! Leonid. > Jari
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