Unable to serialize/deserialize Riddles about sudoku

[sfuhrm]

Hey @FireDrunk

glad to hear that you like it!

Regarding your question: All generated matrices are instances of a GameMatrixImpl (most are subclasses/interfaces). The Solver class takes a GameMatrix in the constructor and does not insist to have a Riddle instance.

The one hint that you're probably needing:

sudoku/sudoku/src/main/java/de/sfuhrm/sudoku/GameMatrix.java

Line 32 in a76bc11

byte UNSET = 0;

The line above is the value for internal mapping of "unset" / free values in riddles. The code doesn't care too much for Riddle or GameMatrix as far as I remember. Riddles are just matrices with a certain amount of "unset" cells. Riddle just distinguishes whether a cell was settable by the user.

Feel free to give this a try. If you still feel you'd prefer some more explicit code, feel free to give me some hints and/or post a pull request.
Let me know if you find a solution that suits your needs!

[sfuhrm]

Since I didn't hear anything anymore, I presume my explanation above solved the problem.
Please reopen if you still feel that there's a need for new functions.