If Boris Gelfand had any momentum after winning Game 7 of the World Chess Championship, it's all gone now. In a King's Indian Defense, Gelfand made a tactical error that resulted in getting his queen trapped, causing him to resign on the 17th move. Gelfand missed a knight sacrifice that he could have played rather than resigning, but it was very difficult to find, and the resulting position was either dead lost or close to it anyway.
What a strange twist to what is quickly becoming a fascinating World Championship! With the match again tied 4-4 and just four games to play, the onus will now be on Gelfand to show that he can recover from today's terrible loss. I'll be sure to make another post with analysis later today.