1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. b1c3  3... g8f6  4. h2h3 A funny move, but if we consider that Carlsen has played 4.a4 here, this one is not so exotic. I imagine the idea is to see how Black will develop. If he plays 4...d5, then the white bishop soon goes to b5, and Black doesn't have the option of Bg4. If 4...Bc5, then White can play 5.Nxe5. 4...Be7 is too passive. 4... f8b4 The natural try. 5. a2a3 Not the most popular move, but it has been played a few times by Spanish GM Vallejo Pons. Maybe he studied it with his countryman $2 5... b4c3  6. d2c3  6... d7d6  7. f1d3 Now White has the pair of bishops and a comfortable position. It may not seem like much, but it's better than nothing. 7... h7h6 Played in order to avoid the pin with Bg5 or the move Ng5 if the bishop goes to e6. 8. d1e2  8... c6e7 [%c_effect e7;square;e7;type;Inaccuracy;persistent;true] 9. c1e3  9... a7a6  10. e1c1  10... e7g6  11. f3d2  11... d8e7  12. g2g3 [%c_effect g3;square;g3;type;GreatFind;persistent;true] It turns out the knight is not well placed on g6. White prepares f2-f4. 12... b7b5 [%c_effect b5;square;b5;type;Inaccuracy;persistent;true] 13. c3c4  13... c7c6  14. f2f4  14... a8b8  15. c4c5 [%c_effect c5;square;c5;type;Interesting;persistent;true] A creative move. 15... d6c5  16. e2f2  16... c5c4  17. e3c5 [%c_effect c5;square;c5;type;GreatFind;persistent;true] This is the idea. This bishop prevents the black king from castling. 17... e7c7  18. d3e2  18... f6d7  19. e2h5 [%c_effect h5;square;h5;type;Mistake;persistent;true] This is a mistake, and now Black's position is defensible. 19... d7c5  20. f2c5  20... g6e7 [%c_effect e7;square;e7;type;Mistake;persistent;true] This loses. 21. d2f3 [%c_effect f3;square;f3;type;GreatFind;persistent;true] 21... e5f4  22. f3e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] Santos Latasa conducts the initiative with great precision from now on. 22... g7g6  23. h5g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true] The exchange of bishops highlights the weakness of the d7-square that can be used by a rook or a knight. 23... c7b6  24. c5d6  24... c6c5  25. g4d7  25... e8f8  26. d7c6  26... b5b4  27. e5g6 [%c_effect g6;square;g6;type;GreatFind;persistent;true]