Alright, maybe I would Time to get serious. Take notes gentlemen, this is how you revert: Per rule #4, Fel's post is invalid - while stating an operation, it doesn't state the current number. That means Chezburgar's post is also invalid, because rule #1 states that you have to do a +1 or -1, while he didn't change the number at all. Which means that Captain Sierra upped one twice in a row, which is against rule #2. The last valid post is therefore 62 by Captain Sierra, which I subtract one from and make it 61. I love this game