That is an interesting contrast. I don't know the smallest number of clues a kakuro puzzle can have, but I made easier ones with many clues, and harder ones, th

That is an interesting contrast. I don't know the smallest number of clues a kakuro puzzle can have, but I made easier ones with many clues, and harder ones, that also have many clues, generously fitting the heart shape, but I'd only be willing to spend tens of CPU hours on optimizing it. https://www.curtiswmoore.com/kakuro/v0.2/kakuro_with_solver.html https://www.curtiswmoore.com/kakuro/v0.2/kakuro_with_solver....