David v. Goliash
8k won against 4d - without handicap!
Unbelievable! This happened at Little Golem Tournament go19.ch.9.1.1
about a year ago.
Wayne Chen, who has rating 8k today, won against 4d.
Wait, looking at the rating graph
Wayne's rating is reasonably stable around 3k and 8k looks like a short-term outlier.
Okay but the rating difference is still big: 7.
Can you find what happened?
Source: http://www.littlegolem.net: game 1249816