Peintoeria

Peintoeria ("Paint Area") is a logic puzzle published by Nikoli. The puzzle consists of a rectangular grid of any size divided into regions. The goal is to blacken some cells of a grid according to the following rules:

• All cells of a region must have the same color.
• A cell with a number indicates how many black cells are adjacent to it.
• All black cells must form an orthogonally continuous area.
• No 2 x 2 cell area within the grid can have the same color.

Cross+A can solve puzzles from 3 x 3 to 30 x 30.

Monotone was invented by Naoki Inaba (Japan). The rules are similar to the Peintoeria puzzle. The only difference between puzzles is that the Monotone puzzle does not contain numbers.

Use the check box Remove all digits to create the Monotone puzzle.