1. g1f3 Ivanchuk played 1.c4 and 1.e4 in his two previous games with White in the match. He has always been a very versatile opening player with encyclopedic knowledge. 1... d7d5  2. g2g3  2... g7g6  3. f1g2  3... f8g7  4. d2d4  4... g8f6  5. e1g1  5... c7c6  6. c2c4  6... e8g8  7. b2b3  7... c8f5 The most common move. 8. c1b2  8... b8d7  9. b1d2  9... f6e4  10. f3h4  10... e4d2  11. d1d2  11... f5e6  12. e2e4 The opening is a small success for White: a comfortable position without risk. 12... d7b6 [%c_effect b6;square;b6;type;Mistake;persistent;true] This is a positional mistake, allowing White to gain space. 13. c4c5 This is very tempting, but maybe not the most accurate. There are two delicious alternatives. 13... b6d7  14. e4e5  14... f7f5 [%c_effect f5;square;f5;type;Mistake;persistent;true] This makes things worse. Black is too passive and strategically lost after this move. 15. f2f4 White has a huge space advantage and can maneuver at will. Ivanchuk plans a pawn advance on the queenside. 15... e6f7  16. f1c1  16... e7e6  17. g2f1  17... h7h6  18. h4f3  18... f8e8  19. b3b4  19... a7a6  20. a2a4  20... g7f8  21. b4b5  21... f8e7  22. b2c3 White's play is very natural. The bishop may go to a5 in some lines. 22... e8f8  23. c1b1  23... a6b5 