I'm playing a much higher rated opponent than me (he's 1800 and I'm 1200) on Friday.
Any tips on how to last long?
At some point early in the game he is going to get tempted and want to attack earlier than usual. He has to be thinking he wants to take you out early. I say in about move 20 - 30 he will want to end the game.
If you have Black play defensively solid. If you have to exchange pawns make sure your ahead or it is an even exchange. Castle in first 10 moves. Get your Knights to Nc6 and Nf6 early. Watch out for him 0-0-0 to have a pawn attack on your king side castle(if you do play 0-0). Play the KID if he plays d5, at best he has to work to win the game with some simple trick. It he plays and e4 opening I would say play the Sicilian but that might be to his favor as he should understand it better than you in chess.
Chances are you might not win but you want him to work for it. Best chance if by the Middle Game and he/she has no advantage they are going to start to get a little frustrated during the game. That is good. He will then take time between moves and you get to scan the board for targets to attack also.
I remember otb when I was 1400 I faced a 1700 that after 1.e4 e5 and some other moves he somehow got his queen to h5 in the opening. I won though.
Thanks for all the tips, guys. For the record, I'm playing white.