- classic grid-style logic puzzles for intermediate to advanced solvers
- check for errors, hints and multi-level undo
- zoom support for small screens and/or large puzzles
- three levels of difficulty, four sizes of puzzle (varies by volumes purchased)
- option to purchase more volumes of varying sizes and difficulty
- classic grid-style logic puzzles for intermediate to advanced solvers
- check for errors, hints and multi-level undo
- zoom support for small screens and/or large puzzles
- three levels of difficulty, four sizes of puzzle (varies by volumes purchased)
- option to purchase more volumes of varying sizes and difficulty
