Wang Hao lost to his countryman, Lu Shanglei, at the World Cup. When they faced each other a month later, in the Chinese Team Championship, Wang played the same opening, and this time he won.

I found this game to be especially noteworthy because it was contested by two players who had recently faced each other at the World Cup. While Lu Shanglei emerged victorious in Baku, Wang clearly came well prepared and confidently repeated the same opening that sent him packing just a month before, this time with much more success.

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Samuel Shankland is a United States grandmaster ranked No. 7 in the country. He is a professional player and recipient of the Samford Fellowship in 2013, the most prestigious award in the United States for young chess players. He is at @GMShanky on Twitter and is also on Facebook.