Author: Ulrich Tuerke
Date: 07:49:43 05/12/98
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On May 12, 1998 at 04:04:28, Ed Schröder wrote: >... >But it doesn't mean much as in 99.9% of these cases these variations >will never show up in the main variation. Still these deep lines are >searched mainly in cases where there are lots of checking moves. > >A nice example and exception to the rule is the "mate in 30" position >you once uploaded yourself: > >5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - id Mate in 30; bm e3g4; >pv 00:00 2.01 262144.00 Ne3-g4+ Ke5-f5 Ng4-h6+ Kf5-e5 Nh6-f7+ Ke5-f5; > >Rebel finds the mate in 30 (which needs the full 60 plies) already on >the second ply. So sometimes it make sense to search that deep. > Except for those rather "exotic" mating positions (which of course look impressively), IMO the main benefit of allowing for such high search max depth is rather in pawn endings where lower max values would even prematurely terminate the search in some cases.
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