Author: Robert Hyatt
Date: 18:45:15 06/25/98
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On June 25, 1998 at 19:25:39, Bruce Moreland wrote: > >On June 25, 1998 at 16:18:29, Robert Hyatt wrote: > >>Bruce is doing some extension stuff that might well pick this up quickly, >>as Cray Blitz gets this right at 5 plies and 0 seconds, but the PV is quite >>long and has the horizon moves by white correct, and it realizes that black >>*has* to stop to capture each pawn that is offered, but it discovers that >>those moves are "singular" and it extends them quite deeply. I'm not yet >>doing singular extensions in crafty, so I don't catch this so quickly, but >>I'm starting to play with them again to see if I like the result. > >Nope, nothing weird here, just null move with maybe some conservative and >minimal pawn push extensions and some razoring. > >I find it in 9 plies, but it's +2 until 14 plies, at which point it goes up to >+5. > >If this contradicts anything in my original post on this, it's because I've >changed versions and machines (trivial version changes). > >bruce can you post your 9 ply PV? the problem I have at 9 plies is that white has a few threats of his own. Starting with h4 and black has to retake... then another pawn push that black has to take time out for. Without those, this is an easy position, but each white pawn push requires a capture by black or white gets a queen first. This is what hurts my search...
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