Why doesn't the rock at the center of the earth liquefy when it is at such high temperatures?

The rock at the center of the Earth remains solid despite extremely high temperatures due to the immense pressure present at that depth. The pressure, which is over 3 million times atmospheric pressure, increases the melting point of the materials, preventing them from liquefying. This phenomenon allows the inner core, primarily composed of iron and nickel, to remain solid even at temperatures exceeding 5,000 degrees Celsius.