Maker posted...
I have created a high quality opening book (Arena book) by using
extracted games from CCRL40/40 (2009 to 2012-03). I created a Java
program to extract data.
Filter conditions for extract games:
- Get winning games that winner side is weaker player and loser side is stronger with rating at least 3000.
-
Get winning games that winner side is stronger player with rating is at
least 2900 and loser is weaker player with rating at least equals to
[stronger rating] - [10% of stronger rating].
- Get draw games that both side rating are at least 3000.
- Some other filter conditions not listed here.
- Book depth: 60 half-moves.
download >>>
Mirror1 
Please test this opening book and report result.
Please download via
Mirror1 link of Gnurt 1.0b.
