Paint by numbers are the first subset of picture logic puzzles, in which cells in a grid have to be colored or left blank according to numbers given at the side of the grid to reveal a hidden picture. In this puzzle type, the numbers measure how many unbroken lines of filled-in squares there are in any given row or column. For example, a clue of "4 8 3" would mean there are sets of four, eight, and three filled squares, in that order, with at least one blank square between successive groups.
These puzzles are often black and white but can also have some colors. If they are colored, the number clues will also be colored in order to indicate the color of the squares. Two differently-colored numbers may or may not have a space in between them. For example, a black four followed by a red two could mean four black spaces, some empty spaces, and two red spaces, or it could simply mean four black spaces followed immediately by two red ones.
More on [ Paint by numbers ]

Conceptis Puzzles - Creator and supplier of picture-forming logic puzzles. Contains online games and those for sale from Japan.
Meta Description: [ Nonstop fun with the world's best logic puzzles: free online picture-forming logic puzzles ]
Nonogram Solver - Information about Nonogram logic puzzles and how to solve them, plus examples of two on-line solvers, software, and links.
Meta Description: [ Information about Nonogram logic puzzles and how to solve them, plus some examples, two on-line solvers, software, and links to other Nonogram sites ]
Paint by Numbers - Offers two color puzzles available to print out or solve online.
Solving Paint-by-Numbers Puzzles with Integer Programming - Article and instructions on solving puzzles.
| Pixelogic - Picross Enhanced for iPhone Gameplay Demo | |
| Next Video | |