[Event "Belgrade"] [Site "Belgrade"] [Round "2"] [White "Larsen"] [Black "Spassky"] [Result "0-1"] [ECO "A01"] [Opening "Nimzowitsch-Larsen: 1...e5 2.Bb2 Nc6"] 1. b3 e5 2. Bb2 Nc6 3. c4 Nf6 4. Nf3 e4 5. Nd4 Bc5 6. Nxc6 dxc6 7. e3 Bf5 8. Qc2 Qe7 9. Be2 O-O-O 10. f4 Ng4 11. g3 h5 12. h3 h4 $3 13. hxg4 (13. Bxg4 Bxg4 14. hxg4 hxg3 15. Rg1 Rh1 16. Rxh1 g2 17. Rg1 Qh4+ 18. Kd1 Qf2 19. Qxe4 Qxg1+ 20. Kc2 Qf2 $19 (20... Bxe3 $19 21. Qf5+ Rd7 22. Nc3 Qxa1 23. Bxa1 g1=Q 24. dxe3 Qxa1) 21. Qf5+ Kb8 22. Qg5 f6 23. Qxc5 g1=Q 24. Qe7 Rc8 25. Qxg7 Qfg2) 13... hxg3 14. Rg1 Rh1 (14... Bxe3 15. dxe3 Rh1 16. Kf1 (16. Rxh1 g2 17. Rh2 g1=Q+ 18. Bf1 Qxe3+ 19. Be2 Qg3+ 20. Rf2 e3 21. Qxf5+ Kb8 $18) 16... Qh4 $19) 15. Rxh1 g2 16. Rf1 (16. Rg1 Qh4+ 17. Kd1 Qh1 $19) 16... Qh4+ 17. Kd1 gxf1=Q+ { mate in 3. 18.Bxf1 Bxg4 19.Kc1 Qe1 20.Qd1 Qxd1#} 0-1