Infinite number of starting grids.
6 levels of difficulty.
Interface optimized for touch.
Complete undo/redo
Advanced reset/solve options
Remembers state on close/reopen
Supports both landscape and portrait orientations
Supports touch, keyboard and trackball
Multiple color schemes
6 levels of difficulty.
Interface optimized for touch.
Complete undo/redo
Advanced reset/solve options
Remembers state on close/reopen
Supports both landscape and portrait orientations
Supports touch, keyboard and trackball
Multiple color schemes
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