Fizbo 1.9 It can be downloaded from https://sites.google.com/site/fizbochessengine/
Here are changes from version 1.8:
1. minor bug fixes: Fizbo 1.8 sometimes crashed when using 6-piece syzygy tables; that should not happen any more. 2. minor changes to search. 3. extensive changes to evaluation.
Expected playing strength is approximately +70 ELO vs Fizbo 1.8. Mostly due to new evaluation features.