[%c_effect f5;square;f5;type;GreatFind;persistent;true]
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f6e4  6. d2d4  6... f8e7 [%c_effect e7;square;e7;type;Interesting;persistent;true] A rare variation of the Ruy Lopez but still played from time to time by super GMs. Gurel will prove to be well-prepared against it. 7. f1e1  7... b7b5  8. a4b3  8... d7d5  9. d4e5  9... c8e6  10. c2c3  10... e8g8  11. b1d2  11... e4c5  12. f3d4  12... c6d4  13. c3d4  13... c5d3  14. e1e3  14... d3c1 The best move. 15. a1c1  15... a6a5 Black needs to create play on the queenside and avoid a future Nb3-c5. 16. e3c3 A good move. The rook on c3 is useful to fight against the break c7-c5. 16... a5a4 This natural move is a novelty. 17. b3c2 The sacrifice on h7, followed by a queen check on h5 and a rook move through the third rank, is looming on the horizon. 17... a4a3 [%c_effect a3;square;a3;type;Inaccuracy;persistent;true] 18. b2a3  18... e7a3 [%c_effect a3;square;a3;type;Inaccuracy;persistent;true] 19. c1b1  19... c7c5 [%c_effect c5;square;c5;type;Mistake;persistent;true] I think Black's position is already somewhat dangerous, but the move played makes it worse. 20. d4c5 A simple and good move, but there's an alternative. 20... d5d4  21. c3g3  21... a3c5 [%c_effect c5;square;c5;type;Mistake;persistent;true] This allows a brilliant combination. 22. c2h7 [%c_effect h7;square;h7;type;Brilliant;persistent;true] The Greek gift strikes again $1 22... g8h7  23. d1h5  23... h7g8  24. h5h6  24... g7g6  25. d2e4  25... c5e7  26. g3f3 [%c_effect f3;square;f3;type;GreatFind;persistent;true] This brilliant move is the real idea of the sacrifice. Black cannot avoid Nf6+. 26... e6f5 