context: 1. d2d4  1... g8f6  2. c1f4  2... d7d5  3. e2e3  3... c8f5  4. f1d3 This opening was played several times during today's matches. 4... f5g6  5. h2h4 A rare plan—I found only two games by amateur players in my database. A transposition to a professional game will occur later on. In the other games, Grischuk played the more natural 5.Nf3. 5... e7e6  6. h4h5  6... g6d3  7. d1d3  7... b8d7  8. b1c3 [%c_highlight c2;keyPressed;none;opacity;0.8;square;c2;persistent;false,c3;keyPressed;none;opacity;0.8;square;c3;persistent;false] A curious square for the knight, since the more traditional laws of strategy don't recommend a knight in front of the c-pawn in queen's pawn structures. However, this rule has been broken for many years, and its validity is even more questionable in fast time controls. 8... f8d6  9. h5h6 