The computer thinks of a number. Try to find the number in as few guesses as possible. You will be given clues to help you find the number. Can you work out a strategy that will enable you to find the number in as few guesses as possible every time?
First decide the range, the smaller the range, the more decimals places you will have to work to.
Either type in the number or use the digit buttons then click on the 'check' button or press <enter>.
< and > signs are used to help you find the number.
The numbers and the scale can be shown or hidden using these buttons: