Kakuro by Nikoli Reviews
4, 8, 15, 16, 23, 42
There's certainly no shortage of number puzzles lurking around the dark, damp corners of the eShop. Sudoku is a prime culprit, and we wouldn't be at all surprised if there was a degree of puzzle overlap between them all, however mathematically unlikely that may be. Kakuro, on the other hand, is much less of a bruised dead horse...