SIMPLE MATH QUESTION - $10 FOR THE ANSWER AND SOLUTION

I need to know how many combinations do i need to make to guarantee that one 6 team parlay is a winner(even though the others will be losers)

this is in regards to sports.

I will need the freelancer to type up all the combinations for me as well to prove this fact.

if you have any questions or need clarifcation please let me know.

Thanks!