Long distance chess with "move anticipation"

Ok, this probably exists, but I can't find it anywhere, so I'll try explaining what I'm looking for and hopefully someone here can tell me where I can find it. :)

I like to play chess with one of my friends who lives far away from me. However, we can't find the time to actually sit down and play for several hours at a time. So we decided to try long distance chess. I e-mail him my move and he e-mails his move back a few days later when he has had time to sit down and think about it.

This is great, but this makes the game incredibly slow. What we want to speed up the game is some kind of move anticipation. Many times I know with 99% certainty what move my friend will play. So I make my move, then wait a few days for him to come online and reply with his move, which I already knew he'd make. Then I make my move and again have to wait for days before he makes the next move, which I've probably already anticipated as well. However, I can't just put in the e-mail: "In case you Rxd2, I Ne4", because that way he could read though all my lines and pick the weakest one before playing his move.

What we need is some kind of server based solution. I go to the website and make my move. The website then e-mails my friend to tell him it's waiting for him to make his move. Meanwhile, I can continue to input the moves I anticipate he'll make and the moves I'll make in each case. A few days later, my friend comes online, plays his move and if it's a move I anticipated, the server will immediately respond: "Your opponent anticipated this move and replies with Bd6.", so my friend can immediately input his next move while he's still online.

(He probably saw my move coming too while he was thinking about the game offline and hence knows what move to make next. Also, it of course works both ways: When he makes a move I didn't anticipate, the server sends ME an e-mail the it's waiting for my move and meanwhile my friend can input what moves he'll make depending on what moves I'll make.)

Surely someone must have made something like this?

Thank you for your time. :)

I think it would be infinitely easier to just play here. You can set up private matches and use the "Conditional moves" feature here to set up lines that will automatically move for you if his moves plays into your assigned line(s). Plus, Chess.com is free.

If you pay you get more than one conditional move choice at a time. You know... sometimes you got the king in check and he's only got two flight squares. In those times you need the additional conditional move features.

Haha, I didn't know you could play chess here and I certainly didn't know you had the feature I was looking for, I just searched Google for "chess forum" and it got me here. :)

Thank you, I guess we'll just play here then. :)