This solver finds solutions to the numbers puzzle of the classic TV game Countdown. Given a target number between 100 and 999, and a set of up to six given numbers chosen from 1-10 (up to two of each), 25, 50, 75 and 100, this solver will display all the ways of combining the given numbers using only the arithmetic operations of addition, subtraction, multiplication and division, so that the result is the target number.
See the Help page for more details.