Hints mode shows you what numbers are legal for the remaining squares. The Deducer uses human-style reasoning to solve the puzzles and can take you step-by-step through their solution with detailed explanations of each step. The brute-force Recurse option solves all puzzles. And tons of hilighting modes help you see the patterns in the puzzles.
You can even drag puzzles right off the web-pages of major UK newspapers into the application, then edit, save and print them for offline fun.
- Bug fix in 2.5.6 caused paste of text puzzles to sometimes fail if a log panel had the focus; this has been fixed.
- Relaxed a restriction in the Consequence Trees hilighters that caused it to sometimes miss contradictions that had a common "trunk" path. While it's arguable that this restriction is reasonable (and I'll argue it), it's pedantic, unhelpful to the user, and sometimes more...