Author: scott farrell
Date: 16:24:55 01/15/03
Go up one level in this thread
On January 15, 2003 at 16:39:42, Dann Corbit wrote: If only I had a few fast computer to test positions like this overnight, with and without my blockade detection ... :- That is a great analysis to compare to. Thanks again Scott >On January 15, 2003 at 00:08:12, Dann Corbit wrote: > >>On January 14, 2003 at 22:05:34, scott farrell wrote: >> >>>Do we know that if you play Rb4, that white has to take the sac? >>> >>>If white doesnt have to take the Rook sac, then maybe there is no solution to >>>wac.230. >>> >>>BTW: a few more minutes of thinking, and lots more fail lows, and the score has >>>dropped below 1.0. It likes Rb5 and Rh7 equally. I think both moves are equally >>>dumb. >>> >>>ply 10=2.53 >>>ply 11=2.35 >>>ply 12=0.88 >>>ply 13 partial=0.64 (still thinking at this ply) >>> >>>The branching factor goes out the wazzooo as it starts detecting blockades, the >>>branching factor is around 11 now at ply 12, as a good move previously now shows >>>a draw, everything shows a draw, basically it is breaking down >>>null-move,alha-beta, everything, down to a straight brute force look at every >>>move. >>> >>>Thinking more on your ideas on what to do on detecting lots of blockades. I >>>might experiment with turing things off like : nullmove, pruning, reductions, or >>>say moving null move to R=1 (I use R=2 normally). >> >>It is not known if it is accurate. It is known that the key move is the only >>move with winning chances and at worst it draws. >> >>Here is the game it actually occurred in: >> >>[Event "?"] >>[Site "Bad Niendorf"] >>[Date "1927.??.??"] >>[Round "6"] >>[White "Kmoch, Hans"] >>[Black "Nimzowitsch, Aron I"] >>[Result "0-1"] >>[ECO "C15p"] >> >>1.e4 Nc6 2.Nc3 e6 3.d4 Bb4 4.Ne2 d5 5.e5 h5 6.Nf4 g6 7.Be3 Bxc3+ 8.bxc3 Na5 9. >>Bd3 Ne7 10.Nh3 c5 11.Bg5 c4 12.Be2 Nac6 13.Bf6 Rg8 14.O-O Qa5 15.Qd2 Nf5 16. >>Rfd1 Kd
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