[Tutor] Guess my number game

[myles broomes]

I am currently learning Python from the 'Python Programming for the Absolute Beginner' book. At the end of each chapter, you are given challenges and one of the challenges is to make a 'Guess My Number' game where the player thinks of a number between 1 and 100 and the computer has to guess the number. I'm having real trouble designing the 'guessing loop' where the computer guesses the players number. Here is the pseudocode I have written up:

Welcome the user to the game
Explain the rules of the game
Wait for the user to think of a number
Once the user has thought of their number, take a guess
While the number has not been guessed correctly
	Increase the number of 'tries' by 1
	Ask the user if the guess was too high or too low
	If the guess was too high
		guess lower
	If the guess was too low
		guess higher
Once the number has been guessed correctly, tell the user the number of tries it took
Exit the game

Any help would be very much appreciated.