LotteryConstrained Number Generator
Like the basic number generator, but lets you require specific numbers, exclude others, and target an odd/even split or sum range. This filters which random combinations you see — it does not improve your odds of winning, since every combination is equally likely regardless of how it was chosen.
Adding constraints doesn't improve your odds — it just filters which random combinations you're shown. Every valid combination (constrained or not) has exactly the same probability of being drawn. See how lottery odds actually work. If your constraints are too tight (e.g. requiring more "included" numbers than the game draws, or a sum range that's mathematically impossible), this tool will say so rather than hang or guess.