Nickleaton / sudoku

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Book keeping #125

Closed Nickleaton closed 2 years ago

Nickleaton commented 2 years ago

Think about changing the uniqueness constraint. If the constraint on the choices is sum(choices) >= 1 instead of == 1 then do we remove all the infeasible leaving the feasible?

Usage, think about creating sudokus. You want to remove the infeasible by adding in an extra constraint.