Corrected Bug: In same cases the program crashed if the generation process was interrupted. This has been fixed.
New Feature: The calculation of valid values for a cell now also identifies "Locked Candidates".
Corrected Bug: Some internal cleanup/improvement efforts.
Corrected Bug: The version 18.104.22.168 might be faster than all of the others, but unfortunately under some circumstances it crashes when creating new problems. This has been fixed (without slowing down the application excessively).
New feature: Some really convincing performance improvements for generating new problems.