I am at the very beginning of this work and I haven't optimized yet the solver. I am just happy that it seems to work.
But optimization of the solver is the next step before I will start to generate the 6 men tablebases. I still have some bugs when I generate tablebases with pawns... That need to be fixed.
I have to learn about compression methods too. Of course the whole computation for the 5 men tablebases is done in memory. It was not an issue, as tablebases with pawns requare less than 1GB. I won't report solving times yet, as probably I can do it up to 10 times better.
I am planning a web-interface too and maybe I will need your advises for it. I have never done a database driven website.
And finally: the generator has a simple graphical interface, of course some day I will publish it.
The maximal depths for 5 men pawnless endgames and the number of reciprocal zugzwangs:http://polgarstarchess.com/5%20men%20pawnless.xls
The maximum DTM for pawnless endgames is M87 (see my previous post for the diagram).