Your score is calculated by comparing your number of floods with the number of floods p required by a simple computer-player algorithm to flood the board.

The value of p for the current board is .

The number p determines a logarithmic curve fitting the three points (0, 100), (p, 50), and (400, 0). This curve is then used to calculate your score, given the number of floods you use to flood the board.

You can use the interactive widget from Desmos to see how changing p and your number of floods affects your score.