Help! I'm going to play Boris Spassky

wow, that's a great opportunity, try and get a few autographs,.......

 Congratulations on winning this great prize, but in your excitement did you mean to say ...b6 rather than b3 or this that a new wonder irish move created after practicing the advice of 'Crazychessplaya'?

In any case, i'm sure Borris will recognize the game as it developed, if the same moves happened to get to move 21 or so, and will realise you studied it and try something different, as there have been no reports of any dementia or Alzheimers creeping into the former Russian Yet!!

So has that line been refuted by theory?

I played Spassky once myself, at a simul at the NY Open about 20 years ago. He's very gentlemanlyand will be very gracious while he defeats you. You don't have to draw or win to enjoy the experience. Play as well as you can and just try not to blunder (which would tarnish the memory). You will of course keep a record of the game and you should ask him to sign it it when you're done.

"Refuted" is a strong word.  Many of the key games do seem to favour white, and in any case, the Kieseritzky continues to be more popular than Fischer's defence.  The debate continues.

the problem is that spassky is likely to play a sideline, or a line he doesnt often use in real play

Probably because it was in a simul

Noone seems to have given a clear answer to these questions yet.
In a simul, you usually have the black pieces. Spassky is playing 25 players simultaneously. He will make a move in 1 game, go to the next board, make his move there, go to your board, etc.
When Spassky comes to your board, you make your move and not earlier (else it might be confusing for him). So the time you have is from the moment he makes his move on your board till he has completed a round and come back to your board.

Naturally, the more games he wins (or finishes), the less boards he has to pay attention to and the less time you have for thinking about your moves. For this reason, I wouldn't worry too much about the opening. Pick a solid defense - don't allow him to go into a king's gambit. If you get to the middlegame safely and feel confident, offer him a draw. If you feel really confident, beat him. :-)
If you're one of the last playing him, it'll probably go too fast for you and he'll mop up.
By the way, he can take as long as he wants for his own moves, though I have never seen a GM think longer than 1 minute on a move during a simul.

You'll never get to the latvian if Spassky plays the King's Gambit.

1.e4 e5 3.f4 f5.   Looks pretty gutsy alright.

Yeah, that's probably the best advice - if you are familiar with something go with that.

I agree, he has seen it all. I bet if you do enough simuls, that even something like e4 h5 doesn't faze you at all.

I had the pleasure and great honor of meeting Mr. Spassky and getting to play him back in the early 80's.  Please....enjoy this experience.  You will not meet a nicer or friendlier man in chess.  It is going to be an experience you will never forget.  And get pictures!!!

Keep a record of the game and he'll sign your scorecard. And don't forget to spell his name correctly (Boris, not Borris).

You're basically saying that there is a 0% chance to draw no matter what. They are both quite unlikely, but if it takes many more moves to lose in the ck than kg, I think ck has a few more percent points at least! Whether those few percents are worth the less spectacular (but less embarrasing) loss is up to him. I would imagine in 30 moves I'm at a moderate to high disadvantage but this of course would be far into the game where the endgame is and I would have chances if slight ones to hold at least with good play. That's more like 15% or more of holding out which would be good enough for me considering spassky. Of course he could try the advance caro which would be the best one if he's looking for an attack but just study the theory and it can't be too bad. Either way it's unlikely, but against mortals spassky is too good in his well prepared and sharp king's gambit whether it's sound or not since he's so vastly superior! I mean the caro kann is definitley more of a drawing line than the often ultra sharp king's gambit! That gives him the most winning chances so it seems insane to recomend it if he's looking for results. Spassky not only knows incredible theory on it he's very familiar with all of the ideas so even if you memorized the lines you still couldn't get as deep as spassky and he would be the opposite of clueless. I personally don't like getting destroyed by anyone; it makes me feel like a bad player because no matter who you lose to you still had to make plenty of mistakes big or small.

Statisticly speaking difference of 400 rating points means that the side with advantage in points has a 99% chances to win, since the difference in rating between class B player and B.Spassky is even bigger those chances are much smaller.

Yeah but it's a simul, so the chances of a class b player winning are raised considerably. So i think Spassky has a 99% winning chance.

But the goal is to draw, and it's in a simul of course. In a real match, there is probably no chance.

Gonnosuke, no need to guess. Look at Spassky's historical simul record. A quick websearch and I found that he had a +20 =6 performance just before his stroke in 2006 in San Francisco.

Doesn't sound like no chance to me.

Yes, most certainly only the noteworthy games from a simul will make it into a DB, so there will be a greater than average proportion of draws and games where the master lost found in DBs when compared to the total simul "population". The post above suggests that he looked up the complete record for a simul, to which I would like to know who the opponents were - the strongest players of a club or area?