Author: GuyHaworth
Date: 15:34:55 10/20/04
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> >I would really really like to see some W/L/D tables from Eugene. His current >DTM tables are great, but the 6 man versions are just too big. No one has 3 TB >of disk space, except maybe Bob. What I would like to see is a 5-man DTM and a >6 man W/L/D. I suspect that they could compress that into 100GB for the whole >set, which would be pretty reasonable. > >anthony John Tamplin finished running Marc Bourzutschky's evolution of Eugene Nalimov's code earlier this year. He produced all DTZ and DTZ50 EGTs for 6-man Pawnless endgames. Filesizes show that DTZ EGTs are just over half the size of DTM EGTs, and would drop to about 35% when the P-endgame EGTs are done, which will be no time soon. So I reckon the 1.45TB needed for 3-6-man DTM EGTs could be as low as 0.5TB with DTZ EGTs. A further thought is that one could keep W/D/L/'broken' EGTs derived from DTC/M/Z EGTs - and 're-inflate' them back to DTC EGTs if needed. This might be quite quick with the right data-structures. After all, the major problem of finding out if a 'potentially lost' position is actually lost would be less of an issue. So, knowing what size W/L/D/'broken' EGTs compress to would be interesting - and the 'broken' positions could be set to whatever was convenient for compression purposes. g
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