🌊 Flood Fill
How to play
Flood Fill is a race against your own move counter. You start with a board of random colored squares and one growing blob in the top-left corner. Each turn, pick any color from the palette: your blob instantly changes to that color and absorbs every neighboring square of the new color, spreading across the board. Your mission is to flood the entire board with a single color before your moves run out. The blob only grows — it never shrinks — so every choice either opens new territory or wastes a precious move.
Controls
- Desktop & mobile: tap or click one of the big color buttons under the board. That is the whole game — no dragging, no aiming.
- Choosing the color your blob already is does nothing and costs no move, so you cannot mis-click your way to defeat.
- New Game deals a fresh random board at any time. Changing the difficulty starts a new board too.
Tips & strategy
- Do not just pick the color that looks biggest. Pick the color that touches the longest border of your blob — border contact is what actually spreads you.
- Look for "peninsulas": a color that reaches deep into the board can unlock huge regions in a single move. One well-chosen color can do the work of three.
- Watch the far corners. Colors trapped in corners far from your blob need their own dedicated move later, so deal with them while you have moves to spare.
- Count colors, not squares. You generally need at least one move per distinct color on the board, so plan a rough route through all six.
- Aim to have the whole board one color with 2–3 moves to spare on Normal. If you are burning more than one move per color, restart and try a bolder route.
- Easy mode (5 colors, small board) is the perfect trainer before you take on the 14×14 Hard board.
Scoring
Flood Fill is scored in moves: fewer moves to a full flood is a better score. The Filled % readout shows how much of the board your blob owns right now, so you can feel your progress turn by turn. A perfect Normal run finishes several moves under the 26-move limit; on Hard, finishing with even one move to spare is a genuine achievement. Every board is random, so no two games play alike — chase a personal best on each difficulty.