User blog comment:Snodderz/HH Data Blog - Feel free to use my data./@comment-62.231.244.75-20121015043732

You don't need to count the number of attempts. What you can do is remember how much coins you have. See how much coins remain after getting HH10. Subtract the later from the former and divide by 250. This will give you the number of attempts.

Qasoom