Kakurasu

Kakuro

Killer Sudoku

Killer Sudoku Jigsaw

Killer Sudoku Puzzle Books

Killer Sudoku X

Knossos

Kojun

Kropki

Kuromasu

Lighthouses

Linesweeper

Masyu

Mathrax

Minesweeper

Mochikoro

Munraito

Neighbours

No Four in a Row

Numbricks