[%c_effect e5;square;e5;type;Inaccuracy;persistent;true] A harmless move, indicating that Kosteniuk was surprised by Koneru's opening choice.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f6e4  6. d2d4  6... f8e7 [%c_effect e7;square;e7;type;Interesting;persistent;true] A not-so-popular move but interesting to play as a surprise factor. It has been employed a few times by Carlsen, among others.