Nim - Classic Simple Matchstick Game

For full rules and mathematical theory see https://en.wikipedia.org/wiki/Nim#Game_play_and_illustration Basically you have 5 rows of matchsticks: Row 1 has 1 matchstick, Row 2 has 2 matchsticks, Up to row 5 with 5 matchsticks. You and your opponent take it in turn to remove 1 or more contiguous matchsticks from a single row. The player to take the last matchstick loses. That's it! Have a go and try and beat the computer.