1. d2d4  1... d7d5  2. c2c4  2... e7e6  3. g1f3  3... a7a6 A modern way of playing the Queen's Gambit. 4. c1g5  4... f8e7  5. g5e7  5... d8e7  6. e2e3  6... g8f6  7. b1d2  7... e8g8  8. a1c1  8... b8c6 [%c_effect c6;square;c6;type;Interesting;persistent;true] Usually this is not a good square for the knight in similar pawn structures, but Black has a specific idea: to prepare …e6-e5. 9. c4d5 This avoids Black's plan at the cost of giving freedom to the c8-bishop. 9... e6d5  10. d1b3 A new move that doesn't offer anything special for White. 10... e7d6 Not the best reaction. 11. f1d3  11... a8b8  12. h2h3  12... c6e7  13. g2g4 [%c_effect g4;square;g4;type;Interesting;persistent;true] A typical move of Mamedyarov's aggressive style. He starts play on the kingside even though his king cannot go to the other flank anymore. 13... c7c6  14. f3e5  14... f6d7  15. f2f4  15... g8h8 [%c_effect h8;square;h8;type;Inaccuracy;persistent;true] 16. b3c2  16... f7f6  17. e5f3  17... g7g5 [%c_effect g5;square;g5;type;Inaccuracy;persistent;true] A brave (or crazy) move $1 18. e1g1 [%c_effect g1;square;g1;type;Inaccuracy;persistent;true] White has many tempting options. 18... g5f4  19. e3f4  19... d6f4  20. c1e1 [%c_effect e1;square;e1;type;Inaccuracy;persistent;true] 20... f8f7  21. f1f2 