[Bug-gnubg] Alternative weights files and call for benchmarkers

[Philippe Michel]

The attached files are drop-in alternatives to gnubg and gnubg-nn weights 
files.

The crashed net is substantially stronger, the racing net should be 
slightly better and the contact network should benefit from that for 
positions soon to be crashed or non-contact but remain relatively 
unchanged elsewhere. There could be gross regressions in certain cases of 
course.

I'd be interested if some of you have private benchmarks or some process 
that could quantify the difference in strength (in ppg or Elo) between 
these and the 0.90.0 nets for "normal" usages like 2ply cubeful play.

In the gnubg-nn benchmarks, the improvement for 1ply checker play is 
important compared to that of 0- and 2ply. It would be interesting to 
check if this translates to a clearer strength hierarchy between 2ply and 
3ply than with the current nets.

nngnubg.weights.bz2
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gnubg.weights.bz2
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