And surprise it is exactly what you think it is. This Yahtzee was based on the classic game to be run on VGA systems at 320x200 and requires a mouse. Because of the added simplicity of using a computer to do all the work in keeping the game going. Without a computer, Yahtzee requires a bit a writing and mathematics.
Speed is another reason for a computer version.
When you consider the time it takes to roll dice, write scores, and add them, you would fall way behind in a race with a computer doing the same thing. This version of Yahtzee does all that for you, and what is better is that you can have competition. Competition is what makes games more challenging. So an opponent is included for you to test yourself against. If you're an experience Yahtzee player, don't expect extreme difficulty in defeating Joe, the computer player.