… or, choose from one of the pre-existing demo puzzles:
- Standard Sudoku
- 12×12 Symbol Sudoku (uses symbol set instead of numbers; [warning: NPL Enigma spoiler])
- 7×7 Kenken
- 4×4 Sudoku
- 5×5 Sudoku (non-square regions)
- 6×6 Sudoku (rectangular regions)
- 6×8 Kakuro (all-induction “brute force” solver)
- 9×9 Kakuro (all-induction “brute force” solver)
- 9×9 Kakuro (“smart” solver makes some deductive inferences)
To enter values in the cells, you can just click and type in a natural way. A few special keyboard commands will help, though:
- “#” – toggles filled/unfilled squares;
- <Enter> allows you to type longer strings, which is useful for Kakuro split squares, which are entered like “5\7″, and KenKen constraints like “+5″, “/3″, “*15″ etc.
- Shift-Arrow creates a thick bar on the appropriate border.
- Space bar (and mouse click) change the orientation of the arrow which controls whether
the cursor advances to the across or down.
- Delete erases the contents of a cell
Thanks to http://www.sachsentext.de/en/ for some of the samples. Also see solutions to the variety Kakuro concocted for the MIT Mystery Hunt 2009