[%c_effect f5;square;f5;type;Inaccuracy;persistent;true] The natural follow-up to the previous move, but this gives Black some chances.
1. d2d4  1... b7b5 [%c_effect b5;square;b5;type;Inaccuracy;persistent;true] The ex-world champion is probably bored with normal openings and decided to try something spicier. Wojtaszek, however, has an exemplary opening repertoire and will punish the experiment convincingly. 2. e2e4  2... c8b7  3. f1d3  3... g8f6  4. b1d2  4... c7c5  5. c2c3 A good and solid way to meet Carlsen's provocative opening choice. 5... c5d4  6. c3d4  6... e7e6  7. g1f3  7... b8c6  8. e1g1 White should not be distracted by the b5-pawn. 8... a7a6 [%c_effect a6;square;a6;type;Inaccuracy;persistent;true] 9. f1e1  9... f8e7  10. d4d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] A devastating advance. Black's position is already nearly lost. 10... e6d5  11. e4e5  11... f6h5  12. d2b3 Threatening to win the knight with g2-g4. 12... g7g6  13. c1h6 Black is deprived of castling, and his h5-knight is out of the game. All of this had been played before, but I doubt either player was aware. 13... h8g8 The first new move. 14. h6e3 [%c_effect e3;square;e3;type;GreatFind;persistent;true] The bishop has done its job, and now it returns to support a knight on c5. 14... h5g7  15. b3c5  15... d8c7  16. a1c1  16... g7e6  17. c5b7  17... c7b7  18. d3f1  18... e7b4  19. e1e2  19... c6e7  20. e2c2  20... e7f5  21. e3g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] A good move. If Black captures the bishop, the rook is ready to invade on c7. 21... b4e7  22. g5f6 [%c_effect f6;square;f6;type;GreatFind;persistent;true] After the exchange of bishops, the pawn on f6 gives White attacking chances on the dark squares. 22... f5g7  23. d1d3 [%c_effect d3;square;d3;type;Inaccuracy;persistent;true] White had a wonderful winning combination. 23... e7f6 [%c_effect f6;square;f6;type;Inaccuracy;persistent;true] 24. e5f6  24... g7h5  25. d3c3 [%c_effect c3;square;c3;type;GreatFind;persistent;true] Defending the pawn and preparing Qe5 or Qb4 in some variations. 25... a8d8  26. a2a3  26... b7b8  27. g2g3 Wojtaszek calmly reinforces his position. 27... g6g5 [%c_effect g5;square;g5;type;Inaccuracy;persistent;true] 28. c1e1  28... g5g4  29. f3d4 The knight is ready to go to f5. 29... g8g5  30. f1d3 [%c_effect d3;square;d3;type;GreatFind;persistent;true] 30... g5e5 