Wesley So – Nils Axel Grandelius
Champions Chess Tour 2021; 4th stage; Magnus Carlsen Invitational 2021; Prelims Tournament; time control: 15 minutes plus 10 seconds per move; chess24.com, March 15, 2021
Grünfeld Defence D85
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 b6 10. 0-0 Qc7 11. Re1. A rare line. 11. ... Nc6 12. d5!? Theoretically speaking, this is a novelty, in place of the previously played 12. Be3, which after 12. ... Bg4 13. Qc1 Na5 14. Bf4 Qc8 15. h3 Bxf3 16. Bxf3 e5 17. dxe5 Qe8 18. Rd1 Bxe5 19. Bh6 Bg7 20. Bxg7 Kxg7 21. e5 gave White an excellent attacking position in Rodrigues – Barbosa, 2nd Chess Open, Altinópolis 2013 — to be sure, however, Black could play better. 12. ... Ne5 13. c4 f5?! Who knows, maybe Black should look for something better here.
14. exf5! Bxf5 15. Rb3 Rad8 16. Bb2
16. ... e6? After 16. ... Nxf3+ 17. Bxf3 Bxb2 18. Rxb2 White stands much better, but certainly it is a lesser evil compared with losing a piece. 17. Nxe5 Bxe5 18. Bxe5 Qxe5 19. Bf3 Qf6. 19. ... Qd4 20. g4 doesn’t change things at all. 20. g4. The Bishop is gone. 20. ... b5 (20. ... Bxg4 21. Bxg4 Qxf2+ 22. Kh1 exd5 23. Be6+ Kg7 24. cxd5 Rf4 25. Rd3+−) 21. gxf5 bxc4 22. Rbe3 Qxf5 23. d6 Qf4 24. d7 Rf7 25. Bc6 Qxf2+ 26. Kh1 c3 27. Rxe6 c2 28. Re8+ Kg7 29. Qa1+ 1 : 0.
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