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IronSudoku Enhancer v.02
Adds extra functionality to IronSudoku
Adds four User Script Commands to clear the board entirely, clear all pencilmarks, only red pencilmarks, or only green pencilmarks.
Holding CTRL+ALT or CTRL+SHIFT while clicking on a number will allow you to pencilmark entire rows or columns.
For use at http://www.ironsudoku.com/
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