A SudokuP is the new name for Disjoint Group(s), where cells with the same position in 3x3 boxes contains number from 1 to 9.
Should be easy for Pencil&Paper solving. No methods needed, except naked/hidden singles.
In a picture:
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In code:
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I published the Solver and Generator (version 4), made in excel, in
http://forum.enjoysudoku.com/sisesuso-simple-serial-sudoku-solver-t35062.html
Downloads, examples, instructions and VBA-source-code included.
Have Fun, Hajime