Why are Sudoku-X, Samurai, Samurai Sudoku-X and Killer available as print-only?
We use Crossword Compiler to produce interactive puzzles. As yet this software does not support these sudoku variants. While it is possible to generate html versions, they behave as crosswords not sudoku puzzles. Additionally, since these variants are generally more complicated it is often better to print them anyway so that you can pencil in candidates. Software limitations mean it takes longer to turn these variant sudoku puzzles into printable artworks, so updates are generally less frequent than for classic sudoku. The grid sizes for Samurai and Samurai-X puzzles are generous, both to retain clarity and to make it easier to pencil in candidates. You may need to reduce sizes before printing. * There has been recent discussion on internet forums about “uniqueness”. If a puzzle is described as having a unique solution, that does not necessarily mean it has only a single solution – rather (and this is not a case of linguistic pedantry) it could mean there is only one unique solution. B