gistfile1.cs

                // Schwerkraft nach unten ↓
                for (int col = 0; col < game.Field.GetLength(1); ++col)
                {
                    int count = 0;
                    for (int row = game.Field.GetLength(0) - 1; row >= 0; --row)
                    {
                        if (game.Field[row, col] == ' ')
                        {
                            ++count;
                        }
                        else
                        {
                            if (count != 0)
                            {
                                game.Field[row + count, col] = game.Field[row, col];
                                game.Field[row, col] = ' ';
                            }
                        }
                    }
                }