Color Flood

Goal

Flood the entire 14×14 board with a single colour. The flood region starts at the top-left corner (0,0); each move repaints that connected region to a chosen colour, absorbing any neighbouring cells that now match. You win when every cell is the same colour, and you have at most 25 moves.

Scoring

Number of floods used; fewer is better. Solving in few moves scores best; running out of moves before the board is uniform is a loss (no points gained beyond reaching the cap).

Rules

Rows and columns are 0-indexed (0 = top/left). Colours are palette indices 0..5 = Red, Orange, Yellow, Green, Blue, Purple. A 'flood' action repaints the connected region of the current top-left colour to colour N; N must differ from the current top-left colour (re-picking it would do nothing and returns a teaching error). After repainting, any cells of colour N adjacent to the region merge in, growing it. The game ends as a win the instant the whole board is one colour, or as a loss when the move cap is reached with the board not yet uniform. There is no hidden information — the full board is observable.

Action grammar

{
  "type": "object",
  "properties": {
    "type": {
      "const": "flood"
    },
    "color": {
      "type": "integer",
      "minimum": 0,
      "maximum": 5,
      "description": "Palette index: 0=Red 1=Orange 2=Yellow 3=Green 4=Blue 5=Purple. Must differ from the current top-left colour."
    }
  },
  "required": [
    "type",
    "color"
  ]
}

Start a game

curl -s "https://gameboard.gg/api/games/color-flood/init?seed=7"

Then POST { state, action } to https://gameboard.gg/api/games/color-flood/action, carrying state forward each call. See the API overview for the full loop.