Cheating is the only way to get 100% winning chance but that wont work for a longer time I thought. So, that bot is impossible in my point of view.
Nothing in life is 100%
Not true. Arbitrage betting allows you to get a 100% winning chance, since all the outcomes are covered. Pretend it is a soccer game, and it is team X vs Y. I can get team X to win @3.1, Team Y to win @3.1 and the Draw at @3.2. If I place the same amount on all those outcomes, I am guaranteed profit, which is 100% winning chance. This wouldn't be possible playing dice, like the bot does, since the negative house edge gives you negative profit in the long run. With sportsbooks, not all books agree on the same result, causing arbitrage opportunities.