1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8e7 This is called the \"Cozio Variation.\" It's currently in vogue, being used by dynamic players who want to spice things up a bit when playing as Black. The white player needs to be ready for a large number of sub-variants when he places the bishop on b5 and chooses the Ruy Lopez (the best chess opening). 4. b1c3  4... e7g6  5. h2h4 Anand, as always, chooses a critical and sharp variation. He had recent experience against the Cozio as he faced his talented countryman Erigaisi last year, when he chose 5.d4. 5... c6d4 [%c_effect d4;square;d4;type;GreatFind;persistent;true] 6. b5c4  6... h7h5  7. f3g5  7... d7d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] A spectacular move that already poses a serious practical problem for White. It's no surprise that in every game I found in the database a losing move was now played, incidentally the same chosen by Anand in this game. Even against best play Black manages to get a decent position, which means that Mamedyarov's choice was not a pure and simple bluff, but an interesting and well-studied line that bore fruit. 8. c4d5 [%c_effect d5;square;d5;type;Mistake;persistent;true] This is already a decisive mistake. 8... c8g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true] 9. d5f7  9... e8d7  10. f2f3  10... g6h4 [%c_effect h4;square;h4;type;GreatFind;persistent;true] This knight thrust is the point of Black's play. 11. d2d3  11... h4g2  12. e1f1 Only this is a new move. 12... g2f4 The knight comes back and serves another purpose: to attack its g5-colleague. 13. c1f4  13... e5f4  14. c3e2  14... d4e2  15. d1e2  15... d8g5  16. f3g4  16... f8c5 