Everyone who plays either side of the Scandinavian (Center Counter) Defense should know the idea presented in this position, a game won by Canal in the 1930s. It started out 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bg4 6. Bf4 e6 7. h3 Bxf3 8.Qxf3 Bb4 9. Be2 Nd7 10. a3 O-O-O (Black’s better choice was 10... Bxc3+ 11. bxc3 Qd5 [11... O-O-O 12. O-O And White’s better] 12. a4 Qxf3 13. Bxf3 Ne7 14. a5 Nd5 15. Bd2 a6 16. O-O O-O-O 17. Rfe1 Rhe8 18. c4 Ne7 19. Bf4 and the advantage of the two bishops and possession of the half-open b-file will win for White in the long run.)SEE DIAGRAM Canal now strikes.
11. axb4 Qxa1+ 12. Kd2 Qxh1 13. Qxc6+ bxc6 14. Ba6# There are two themes here: the two rook sacrifice and the Boden mate with the queen sacrifice and bishop mate.