Sicilian to Danish

White turns a Sicilian opening to Danish Gambit. Black unknowingly cooperated in the magnificent outcome.

KERES vs. WINTER
Warsaw, 1933
Sicilian Defense (Danish Gambit by transposition)

1. e4, c5
2. Nf3, Nf6
3. e5, Nd5
4. Nc3, e6
5. Nxd5, exd5
6. d4, d6
7. Bg5, Qa5+

If 7....Be7, then White gains a pawn by 8. Bxe7 Qxe7, 9. dxc5 ..

8. c3, cxd4
9. Bd3!? ....

Offering pawns one after another, White plays for a dashing attack.

9. .... dxc3
10. 0-0, cxb2
11. Rb1, dxe5?

This move opens the e-file and increases Black's attacking prospects.

12. Nxe5, Bd6

Of course not 12....f6 because 13. Qh5 is devastating. At this point, 12....Be6 is preferable.

13. Nxf7, Kxf7
14. Qh5+, g6

Black's situation is shaky. If 14....Kf8, then 15. Bxh7 etc. If  14....Ke6, then 15. Bf5+ Ke5, 16. Re1+ Kd4, 17. Be3+ Kc3, 18. Qd1 and Black can resign.

15. Bxg6 hxg6
16. Qxh8, Bf5

Preventing the loss of another pawn. If 16....Nd7, then 17, Qh7+ Kf8, 18. Bh6+ Ke8, 19. Qxg6+ etc.

17. Rbe1, Be4

A mating position arises for White after 17....Bf8, 18. Re7+ Bxe7, 19. Qh7+ Kf8, 20. Qxe7+ Kg8, 21. Bf6 etc.

18. Rxe4!!, dxe4
19. Qf6+, Resigns

White wins after 19....Ke8, 20. Qe6+ Kf8, 21. Bh6 mate.  If 19....Kg8, then 20. Qxg6+ Kf8, 21. Qxd6+ Kg8, 22. Qe6+ Kg2 (If 22....Kh8, then 23. Bf6+ Kh7, 24. Qf7+ Kh6, 25. Qg7+ Kh5, 26. g4 mate.); 23. Qe7+ Kg6, 24. Qf6+ Kh7, 25. Qf7+ Kh8, 26. Bf6 mate.