Square-Off 

Square-Off is a very addicting mind game, based on Japanese nonogram puzzles (Sometimes called Griddlers, or paint by numbers).
nonogram puzzle square black row column education paint by number

Nonosweeper 

Nonosweeper is a cross between the popular Windows game Minesweeper and the hidden-picture logic puzzles known as Nonograms or Griddlers.
minesweeper nonosweeper cryptopics nonogram nonograms griddlers