1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. e2e3  3... c7c5  4. d4c5 [%c_effect c5;square;c5;type;Interesting;persistent;true] This interesting opening was recently tested in a decisive game of the Women's World Championship match. 4... e7e6  5. b2b4  5... a7a5  6. c2c3  6... a5b4  7. c3b4  7... b7b6  8. f1b5  8... c8d7  9. b5d7  9... b8d7  10. a2a4  10... b6c5  11. b4b5 The main strategic theme for this fun position is well defined: two passed pawns on the queenside against a flashy central majority. Which one is more important $2 As usual in top-level chess, the two factors balance each other out to create a dynamic equality. But it's the type of equality that requires a lot of precision from both players and in which the cost of a mistake tends to be very high. 11... f8d6  12. e1g1  12... d8c7 The queen is well positioned here, supporting the e-pawn advance and looking to the kingside. Of course, there's nothing wrong with castling first and deciding the queen's course later. 13. c1b2  13... e6e5 Surprisingly, this is already a new move. 14. f3d2  14... e5e4  15. f2f4  15... e8g8 An interesting and difficult topic in chess is when is it worth capturing \"en passant\" and when is it better to leave the structure in tact. Interestingly, this is not well studied in chess literature, but it's a problem that occurs frequently and I must admit that I often make the wrong decision. 16. b1c3  16... f8e8  17. f1e1 Possibly not the best way to fight against d5-d4. White has two good alternatives. 17... d5d4 [%c_effect d4;square;d4;type;Interesting;persistent;true] 18. e3d4  18... e4e3  19. d2f3  19... d6f4  20. c3e2  20... f4d6  21. d4c5  21... d6c5  22. b2d4 With the danger of the advance of Black's central pawns gone, the position is easier to play for White, although the computer still evaluates it as equal. 22... c7b6  23. d1d3  23... c5d4  24. d3d4  24... b6a5 [%c_effect a5;square;a5;type;Inaccuracy;persistent;true] 25. e2g3  25... d7b6 [%c_effect b6;square;b6;type;Mistake;persistent;true] 26. g3f5  26... b6d5  27. f5d6 [%c_effect d6;square;d6;type;GreatFind;persistent;true] A surprising journey to the other flank. 27... e8e6  28. d6c4  28... a5b4  29. e1b1  29... b4e7  30. b5b6 [%c_effect b6;square;b6;type;Mistake;persistent;true] The pawns finally start moving, but it's actually the wrong time for that. 30... e6e4 [%c_effect e4;square;e4;type;Inaccuracy;persistent;true] 31. b6b7 [%c_effect b7;square;b7;type;GreatFind;persistent;true] 31... a8b8  32. d4a7  32... e7c7 [%c_effect c7;square;c7;type;Inaccuracy;persistent;true] 33. a4a5 [%c_effect a5;square;a5;type;Mistake;persistent;true] 33... e4e8 [%c_effect e8;square;e8;type;Mistake;persistent;true] 34. a5a6  34... d5c3  35. b1b4  35... h7h6 [%c_effect h6;square;h6;type;Inaccuracy;persistent;true] 36. a7b8 [%c_effect b8;square;b8;type;GreatFind;persistent;true] 36... e8b8  37. a6a7  37... f6d7  38. a7a8q White is now a rook up, and the rest of the game requires no comment. 38... c3d5  39. b4a4  39... e3e2  40. a8a5  40... c7b7 