As you solve the puzzles, you can mark the ones you like as favorites and can then generate new custom puzzles based on those favorites for infinite replayability!
The following options can be enabled/disabled:
- Candidates/pencil marks turn red if they are invalid
- Candidates/pencil marks are removed when a value is placed that invalidates the mark
- Undo/redo moves
- Use alternate symbols (Greek symbols)
- Whether the grid layout starts with 1 in the upper-left or mimics the numpad and starts in the lower-left
Features
- Minimalist design
- Keyboard shortcuts
- Relaxing music
- 5 different difficulty levels
- Comes with 250 puzzles
- Can generate infinite puzzles based on your favorites
