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Its because you used an obfuscation golf as a starting point :) an obfuscation that uses recursion based on global variables , not arguments passed -- the main purpose behind obfuscations is to hide(trick) how the code works, and purpose behind golf is to do it in as few characters as possible

If you want to do multiple games, you should use something from cpan ( sudoku solver ) like Games::Sudoku::Solver - Solve 9x9-Sudokus recursively

or Games::Sudoku::OO::Board


In reply to Re: Sudoku solver by Anonymous Monk
in thread Sudoku solver by ecube

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    [1nickt]: Yaerox probably best to whip up an SSCCE demonstrating the failure in what you have now and post to SoPW as a question.
    [Corion]: Yaerox: That's a somewhat hard problem. Encode solves the conversion part, but for guessing what encoding a file is in, that's the hard part
    [Corion]: Yaerox: There is Encode::Guess, but that needs a limited set of inputs, and it also cannot handle multiple single-byte encodings
    [Corion]: If you have a BOM, that's a really easy way to recognize UTF-8. Otherwise, you can try to decode a file from UTF-8, and if that works OK and doesn't crash, most likely the file was valid UTF-8
    [Corion]: But as "ansi" (Latin-1?) is a single-byte encoding, any file is a valid ANSI file

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