1. g1f3  1... d7d5  2. g2g3  2... c7c5  3. f1g2  3... b8c6  4. c2c4  4... d5d4  5. e1g1  5... e7e5  6. d2d3  6... f8d6 Black chooses to develop with Bd6-Nge7. Other options are possible: Nf6-Be7, Bd6 with Nf6, and even Nge7-Ng6-Be7. In all cases the game is even. 7. e2e3  7... g8e7  8. e3d4  8... c5d4 The most traditional capture and also the best. 9. b1d2  9... e8g8  10. a2a3  10... a7a5  11. f1e1  11... c8f5 [%c_effect f5;square;f5;type;Inaccuracy;persistent;true] This move doesn't suit Black's development. 12. d2e4  12... a5a4  13. f3h4 [%c_effect h4;square;h4;type;Interesting;persistent;true] White bothers both Black's bishops and prepares the queen's journey to the kingside. 13... f5e6 A risky move, as it invites the knight to g5. 14. e4g5  14... e6d7 [%c_effect d7;square;d7;type;Mistake;persistent;true] The losing move. With the bishop on d6 unprotected, White's attack flows naturally. 15. d1h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true] 15... h7h6  16. g5e4 The bishop is attacked, so Black needs to waste another move instead of protecting the king. 16... d7e8  17. e4f6 [%c_effect f6;square;f6;type;GreatFind;persistent;true][%cal de4f6][%c_arrow e4f6;keyPressed;none;from;e4;opacity;0.8;to;f6;persistent;false] 17... g7f6  18. c1h6 Black is paralyzed, with his pieces wrapped up and unable to help the king. 18... e7g6  19. h4g6 A good enough move, although not the most accurate. 19... f7g6  20. g2d5 