Flood

Try to get the whole grid to be the same color within the given number of moves, by repeatedly flood-filling the top left corner in different colors.

Controls

On a touch screen, a tap does what a click does.

Click a square to flood-fill the top left corner with that square’s color.

With the keyboard, the arrow keys move a cursor around the board. Enter or Space does what a click does to the square under it.

Hints

Hint names the next color to fill with — “Fill with orange: it joins the ringed squares to your region”.

A ring marks what the step decides: a ring round every square the named color’s fill would join to your region, so you can see what it gains: the ringed squares, in its words.

Nothing in Flood is forced by logic, so the hint plays a few fills ahead and picks the one that looks best; it does not promise the shortest way to finish. The move limit is set by the same planner playing from the start, plus the extra moves the game allows, so following the hint from the first move finishes in time.

Not in this game

Checking for mistakes. Any sequence of floods that fills the grid within the move limit wins, so there is no single answer to check a move against.

Flood parameters

These parameters are available from the ‘Custom type…’ option on the ‘Type’ menu.

Width, Height: Size of the grid in squares. The grid must have at least two squares. Each must be at least 1.
Colors: How many different colors the grid is filled with. It must be between 3 and 10.
Extra moves permitted: How much slack the move limit gives you. The game plays the board through itself when it deals it, and the limit is the number of fills it took plus this many. At 0 you have to match or beat the game's own count. It must be at least 0.

More help

Features every puzzle shares: hints, checking your work, checkpoints, playing by touch
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