Bronsteinian sacrifice in 960

Grandmaster Bronstein was more apt than other world-class players to sacrifice material in the opening when a couple of advanced center pawns came as compensation.

Against the Norwegian master Rojahn at the 1956 Olympiad, Bronstein won a nice game after 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. dxe4 Nxc4 9. Qd4 Nb6 10. c4. Rojahn said about 8. dxe4 that he thought Bronstein just hung the c4-bishop.

In the 1950 final candidates match against Boleslavsky, Bronstein drew first blood following the exchange sacrifice 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Bc4 Bg7 8. Ne2 O-O 9. O-O cxd4 10. cxd4 Nc6 11. Be3 Bg4 12. f3 Na5 13. Bd3 Be6 14. d5 Bxa1. Bronstein won the 14-game match to gain the right to challenge Botvinnik for the world championship (and married Boleslavsky's daughter — Bronstein and Boleslavsky were very fond of each other, but when the chess clock starts, the great players can put it all aside).

I felt Bronstein would've have appreciated White's exchange sacrifice at move 10, and might've forgiven nine pawn moves by each player — because without the nine suspect moves, the Romantic 10th move would not have happened.