So I just realized there is a tag for nonogram. More browsing, there are tags minesweeper, mastermind, slitherlink, and other genres of grid puzzles (a.k.a grid-deduction) as well.

Hmm.. There is sudoku, but no kakuro. There is partiti, but no fillomino. Moreover, there are no masyu, akari, LITS, and many more.

So, when does a (grid) puzzle genre have its own tag?