Puzzle are a hard thing to put into a game. Too easy, and they don't feel like a challenge. Too difficult, and either the game bogs down or your players resort to Int checks and you might as well not have bothered.
Countless articles talk about taking Sudoku or similar puzzles and replacing them with shiny stones or runes so they fit into your game. This is good advice. It's also time-consuming.
Enter the Puzzle Converter. Convert chessboards, Sudoku puzzles, go boards, and anything remotely related into shiny pretty pictures full of glyphs, runes, or stones. Save them, print them out, drop them into your game, and watch your players be amazed at your DMing and aesthetic genius.
Don't really need puzzles? What about Vedic Squares made out of strange glyphs adorning the walls of a temple, or half-finished Go games sitting in the duke's parlor?
You can use the Puzzle Converter to put together anything that can be represented by numbers on a grid. Relative army positions? Very shiny combat grids? Go for it!
Choose from different backgrounds, create boards of any size, and instantly have gorgeous puzzles for your game. Each puzzle also comes with the stones or glyphs used down the size, so you can copy and paste more on the board, or print them out for your players to place.
Click any of the screenshots to see them full-size.
The program is written in .NET, so it should work on all recent versions of Windows and quite a few *nix boxes and Macs as well. (Assuming you have an emulator; I've tested similar programs on Mono on Mac and Wine on Linux and they worked on both, though there are sometimes some slight glitches on Wine.)