[Event "Berlin"] [Site "?"] [Round "0"] [White "Bernstein"] [Black "Piotrowski"] [Result "1-0"] [ECO "C54"] [Opening "Giuoco Piano: 5.d4"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. O-O Nxe4 7. cxd4 Bb6 8. Re1 d5 9. Bxd5 Qxd5 10. Nc3 Qh5 11. Rxe4+ Be6 12. d5 O-O-O 13. Bg5 $1 f6 (13... Rd7 14. Qb3 Na5 15. dxe6 Nxb3 16. exd7+ Kxd7 17. axb3 { White has three minor pieces for the Queen and has the better of it}) (13... Rd6 14. Qe2 Bxd5 15. Re8+ Rxe8 16. Qxe8+ Nd8 17. Nb5 Rd7 18. Ne5) 14. Rxe6 fxg5 15. Qa4 Nb8 16. Rc1 Rd7 {WHITE TO MOVE:} 17. Rxb6 $1 {Removing Black's best defensive piece is of overriding importance for the attacker, even though it cost material} 17... axb6 18. Ne5 Re7 {WHITE TO MOVE:} 19. Nb5 $1 { The decisive strengthening of the attack} 19... Rxe5 { A pointed interpolation brings the decision WHITE TO MOVE:} 20. g4 $3 { The superb climax to the combination} (20. Qa8 Re7 21. d6 Qe8) 20... Qh6 (20... Qh3 21. Nd6+ Kd8 22. Nf7+ { regaining his sacrificed material with great advantage}) 21. Rxc7+ Kd8 22. Qa8 $18 1-0