Interesting that this topic should show up now. I've got a game going on where my opponent just did sac a knight for a pair of connected passed pawns, Game 1318755
I DO NOT WANT COMMENTS NOW, as the game is still (6 Jan 2006) ongoing (Black has made move 41 at this time). Still, I think I'm not giving away any secrets when I say that the game just went from looking very drawish to being very fluid. My personal assessment is that it is still a draw with best play from both sides, but I could easily be wrong. And, of course, both sides have 'good' opportunities to go astray. Neither of us can afford to make a mistake.
On the other hand, this is round 5 of this tourney, which started in September of 2004. Dave (The SDH) and I have been the only remaining players for the past 3 rounds and we've split two of them. He needs the win to force yet another round and I just need a draw to win the tourney. (That's also giving away no secret -- we've both said as much in our chat.) I actually offered a draw two or three weeks back. The position was looking like a probable draw and he was on vacation and had several times come within hours of the automatic timeout. The knight for two pawns was clearly his best opportunity to bring about some winning chances. Now we have an exciting game again so we're both happy.