https://www.chess2u.com/t8247-swcr2-book-v-550-for-testers-rating-list-available

@Frank wrote:
Hi there,

my long time work :-) is available in a new version:

Shredder Classic opening book for building of a rating list or if engine lovers have interest to test engine with more as 100 games ...

SWCR Book v5.50 for Shredder Classic GUI
- 276 moves added (now 40.078 moves)
- around 490 of 500 can be now play by random
- during 1.000 games around 400 different ECO codes with around 460 variation will be play
- more as 8 moves in different variation for a clearer ECO classification
- some changes in in my "random preferences" for more variety