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:

import 'dart:math';
import 'dart:io';

main() {
  final n = (1 + new Random().nextInt(10)).toString();
  print("Guess which number I've chosen in the range 1 to 10");
  do { stdout.write(" Your guess : "); } while (n != stdin.readLineSync());
  print("\nWell guessed!");
}