Problem Statement

Write a program where the program chooses a number between   1   and   10. A player is then prompted to enter a guess.   If the player guesses wrong,   then the prompt appears again until the guess is correct. When the player has made a successful guess the computer will issue a   "Well guessed!"   message,   and the program exits. A   conditional loop   may be used to repeat the guessing until the user is correct.

Let's start with the solution:

using System;
using System.Console;

module Guess
{
    Main() : void
    {
        def rand = Random();
        def x = rand.Next(1, 11);  // returns 1 <= x < 11
        mutable guess = 0;
    
        do
        {
            WriteLine("Guess a nnumber between 1 and 10:");
            guess = Int32.Parse(ReadLine());
        } while (guess != x);
    
        WriteLine("Well guessed!");   
    }
}