# Puzzles/Shading

Shade grid puzzles are named as such due to in order to solve the puzzle shading the grids is a must. Below are types of shading puzzles

## Kuromasu
### Rules

* Certain cells are shaded so that each number indicates total number of cells that are "visible"/ unshaded cells in the same row and column, including cells itself
* No cells with number can be shaded
* Shaded cells cannot touch except diagonally
* All unshaded cells must form a single continuous area, you can travel horizontal and vertically from cells to cells
* Examples of solved Kuromasu

## Clouds
### Rules

* Shade rectangular group of cells so that each group is at least 2 cells wide and at least 2 cells tall ( > 2X2)
* Each shaded rectangular cannot touch at all even diagonally
* The number given is the number of shaded cells in each rows and columns
* Cloud puzzles
* Cloud solved puzzles

## Light Up
### Rules

* Place light bulbs in some empty cells so that each empty cells is illuminated
* Light bulbs illuminate every cell in their row and column until being blocked by black cell
* No light bulb can be illuminated by other light bulb
* Some black cells have number, corresponding to the number of touching, non diagonally cells
* Example of empty puzzles
* Example of solved puzzles

## Mosaic
### Rules

* Shade some grid cells, which may include the numbers printed on them
* A number in cell reveal the number of shaded touching cells, including touching diagonally and the cell itself
* The finished puzzle will reveal a simple picture

### Gallery

* Example of solved puzzlesExample of solved puzzles

## Heyawake
### Rules

* Shade some grid cells, so that no 2 shaded cells are adjacent (except diagonally) and unshaded cells forming single continuous area
* Any single horizontal or vertical group of unshaded cells cannot cross more than one bold line region
* Number cells may or may not be shaded but it always gives the precise amount of shaded cells inside the bold line region
* Empty heyawake puzzles
* Example of solved puzzles

## Tapa
### Rules

* Shade some cells to form contiguous shaded region
* Numbers in a cell reveal length of each group of touching shaded cells (Including diagonally touching cells)
* If there are more than one number in a cell, meaning there must be at least one unshaded cell
* Shaded cell cannot form 2X2 square or larger
* Example of Tapa puzzles
* Examples of Tapa solved puzzles

## Minesweeper
### Rules

* Place mines into empty cells in the grid
* Number in the cells meant that humber of mines touching the cells itself (including diagonally)
* Only one mine may be placed per cell
* Example of Minesweeper puzzles
* Example of solved Minesweeper puzzle

## Snake
### Rules

* Shade some cells to form a single snake that starts and ends at the given cells
* The "snake does not cross over itself
* The snake does not touch itself (even diagonally, except when turning cornet)
* Number outside the grid specify number of cells in row/column contain part of the snakes
* Example of snake puzzle
* Example of solved snake puzzle

## Hitori
### Rules

* Shade some cells so that no numbers repeat in any row of column
* Shaded cells cannot touch except diagonally
* All shaded cells must form a single unconnected region
* Example of Hitori solved puzzles

## Mochikoro
### Rules

* Shade some cells so that every numbers in the puzzle remain as part of continuous unshaded rectangle of precisely the given cells
* Shaded cells cannot form areas larger than 2X2
* Not all unshaded rectangles are necessarily marked with numbers
* In this puzzle, rectangle can meant square too.
* Example of solved puzzles

## Star Battle
### Rules

* Place stars in some cells so that each row , column and outlined region contains exactly two stars
* Stars cannot touch each other, not even diagonally
* Example of Star Battle puzzles
* Example of solved Star Battle puzzle