Flood Fill

Flood Fill is a free color flood puzzle you can play in your browser. Grow your top-left region by picking colors that connect to the board edge. Win before moves run out on the shared daily board or Classic sizes.

Also known as: color flood puzzle, fill the board, region grow puzzle

Flood the grid from the corner in this free online color flood puzzle. Shared daily board or Easy, Medium, and Hard sizes in your browser.

How to play Flood Fill

  1. Daily opens on today’s shared Medium board; Classic picks Easy, Medium, or Hard with a fresh seed.
  2. Tap a color to flood every cell connected to the top-left that matches your current region color.
  3. Colors that would not grow the region are disabled. Win when the whole grid is one color before moves run out.
  4. Three undos per game; each undo costs one point from your final score.

Score = (move limit − moves used) × 100 + max(0, 120 − seconds) × 2 − undo uses. Higher is better. Perfect when moves used are at or below the generator’s greedy target.

All games — Timer Challenge, Ball Race, Memory Grid, Split in Half, Crack the Password, Guess Number Up/Down, Hidden Bottle Order, Ball Color Sorting, Color Order, Color Match, Missing Object, Perfect 10s, 2048, Brick Breaker, Asteroids, Block Drop, Sky Hop, Snake, Minesweeper, Lights Out, Golf Solitaire, Pyramid Solitaire, Tri Peaks, Nonogram, Simon, Sliding Puzzle, Sudoku, Speed Type, Whack-a-Mole, Spatial Maze, Connect Four, Tower of Hanoi, Tic-Tac-Toe, Mastermind, Color Tap, Yacht Dice, Connect Dots, Match Pairs, KenKen, Tower Stack, Pipe Flow, Rush Hour, Sokoban, Reversi, Pinball