1. d2d4  1... d7d5  2. g1f3  2... g8f6  3. e2e3  3... e7e6  4. f1d3  4... c7c5  5. b2b3 In appearance, White's system is unpretentious and harmless, but it keeps the pieces on the board and avoids a theoretical opening battle, which is a possible strategy to play for victory. 5... b8c6  6. e1g1  6... b7b6  7. c1b2  7... c8b7  8. b1d2  8... a8c8  9. a2a3 Useful to prevent Nb4. 9... f8e7  10. f3e5 An aggressive plan, preparing f2-f4 and a kingside attack. 10... c5d4 [%c_effect d4;square;d4;type;Inaccuracy;persistent;true] I don't like this move, especially in combination with the next one, as it opens the game for the b2-bishop. 11. e3d4  11... c6e5 [%c_effect e5;square;e5;type;Inaccuracy;persistent;true] This makes things worse. 12. d4e5  12... f6d7  13. d1g4  13... g7g6  14. b3b4 [%c_effect b4;square;b4;type;GreatFind;persistent;true] An excellent move, preventing the black knight from going to c5. The problem with Black's position is the lack of counterplay, as there are no good pawn breaks and her pieces are passive. 14... a7a5 Trying to create some counterplay, but this still doesn't threaten anything, and Black's king problem is not easy to solve. 15. d2f3  15... e8g8 Black will suffer an attack, but if she doesn't castle, what to do $2 16. a1e1 [%c_effect e1;square;e1;type;Inaccuracy;persistent;true] This is not the most accurate. 16... a5b4  17. a3b4  17... c8a8 [%c_effect a8;square;a8;type;Inaccuracy;persistent;true] 18. h2h4 [%c_effect h4;square;h4;type;GreatFind;persistent;true] The attack develops swiftly now. 18... a8a4  19. h4h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true] 19... a4b4  20. f3d4 [%c_effect d4;square;d4;type;GreatFind;persistent;true] Tan conducts the attack with great accuracy. 20... g6g5 The best chance. 21. b2c3 Preserving the pieces before attacking is also an interesting idea. 21... b4a4  22. f2f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] 22... d8c8  23. c3b2  23... d7c5 A viable resource, as we will see. 24. f4f5  24... e6f5  25. d3f5  25... c8d8 [%c_effect d8;square;d8;type;Inaccuracy;persistent;true] 26. h5h6  26... b7c8  27. e5e6  27... f7f6  28. f5h7 [%c_effect h7;square;h7;type;GreatFind;persistent;true] 28... g8h7  29. g4f5  29... h7h8  30. d4c6 [%c_effect c6;square;c6;type;GreatFind;persistent;true] 30... d8e8  31. f5g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] 31... f8g8  32. f1f6 [%c_effect f6;square;f6;type;Blunder;persistent;true] A dramatic mistake when the game is close to its natural conclusion. 32... e7f6  33. g5f6  33... h8h7  34. c6e7  34... a4e4 [%c_effect e4;square;e4;type;Blunder;persistent;true] The final mistake. 35. e1e4 