Magnum Opus is the successor to the programs The Daily Crossword (a PC-DOS program current from 1992 to 1994) and Crossword Express (a program with versions for Windows and Apple Macintosh, current from 1994 to 2009).

It has a wide range of features which allow you create (both manually and automatically) a wide range of puzzles which initially include Acrostic, Akari, Domino, Doublet, Fillomino, Futoshiki, Gokigen, Kakuro, Kendoku, Ladderword, Letterdrop, Pyramidword, Slitherlink, Sudoku, and naturally Crosswords, both Standard and Freeform.

Additional puzzle types similar to these will be added in future releases.


An Introduction to Magnum Opus puzzles.
Below is a complete list of Magnum Opus puzzles. To see a reduced graphic showing a program screen shot for any puzzle, simply point to the name of that puzzle with the mouse cursor. To get the full story, just click the mouse button.

 Crossword 
 Codeword 
 Freeform 
 Acrostic 
 Akari 
 Domino 
 Doublet 
 Fillin 
 Fillomino 
 Futoshiki 
 Gokigen 
 Kakuro 
 Kendoku 
 Ladderword 
 Letterdrop 
 Pyramidword 
 Roundabouts 
 Sikaku 
 Sixpack 
 Slitherlink 
 Sudoku 
 Tents 
 Wordsearch 

The program is written in the popular Java language which results in two significant advantages:-

The Site Map at left includes a number of links to other pages which give a comprehensive description of the features provided by Magnum Opus.

    Go Directly to the MagnumOpus download page.