Author: Tony Werten
Date: 01:16:35 09/23/04
Go up one level in this thread
On September 22, 2004 at 14:53:14, Andrew Platt wrote: >On September 22, 2004 at 14:42:59, Robert Hyatt wrote: > >>On September 22, 2004 at 07:53:37, Andrew Platt wrote: >> >>>Actually, more accurately a problem with null move and a position that appeared >>>in this week's Washington Post Chess column: >>> >>>[D] 3K4/8/2ppp3/2pkp3/2ppp3/8/4P3/3Q4 w - - 0 1 >>> >>>The main thing to do is to wait for black to commit suicide, something that null >>>moves are very bad at doing! The solution is to make an active waiting move that >>>will position the Queen directly later: >>> >>>1. Qa1 d3 2. Qc3 e3 3. exd3 cxd3 4.Qxd3# >>> >>>However, Schola does not want to get this mate. I can run it as long as I like >>>and it still goes for the longer mate: >> >>You are not doing null-move for black I hope? IE with only pawns, null-move is >>bad... > >This is probably the problem; Stan asked this too. I need to check tonight if >this is what's causing the problem. However, I do have verified null move and so >if it cuts off with that it should re-verify with a shallow search which should >still work OK for no pieces. This is the part I need to check. If you allow nullmoves cutoffs during the verification search, you'll still have problems. Tony > >Andy.
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