Guess a number between 1 and 100

The following operations are supported. For a formal definition, please review the Service Description.

• EndGame
  EndGame() releases the session (you have a 1 minute session timeout between guesses).
• Guess
  With Guess() you can guess (pass) a number between 1 and 100. The return value is 1 when the number you entered is too high, -1 when too low, and 0 when correct.
• Guesses
  Guesses() returns the number of guesses so far.
• NewGame
  Use NewGame() to start a new guessing game.