Nonogrammen Katana

Nonogrammen Katana: Verscherp je geest!Nonogrammen, ook bekend als Hanjie, Griddlers, Picross, Japanse kruiswoordraadsels, Japanse puzzels, Pic-a-Pix, \"Paint by numbers\" en andere namen, are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a ...