The Drawkiller_balanced Sets contain only lines within a small
eval-interval around 0.00:

Drawkiller_balanced: 3869 lines with Komodo-eval inside [-0.09;+0.09]
Drawkiller_balanced_500: 500 lines with Komodo-eval inside [-0.09;+0.09]

This leads to little higher draw-rates, but also to wider Elo-spreadings.

I recommend using it, if you want to test engines, wich are very close
in strength!

I believe, that 3869 lines are quite too small for building opening-books
out of these lines, so I did not do it. But if you want to build a book -
no problem. Use the pgn-file Drawkiller_balanced.pgn to build a book in
any GUI, you like...all lines are 13 moves (26 plies) deep, mention, that
all your book-building settings are correct! If the book-lines are shorter,
Drawkiller will not work!!!



