Italian Game Scotch Gambit, Nakhmanson Gambit

VLADIMIR SOKOLOV vs. RUSHNIKOV
Corr-1, 1966

1. e4, e5
2. Nf3, Nc6
3. Bc4, Nf6
4. d4, exd4
5. 0-0, Nxe4
6. Nc3 ....

The Nakhmanson Gambit.  White sacrifices the Knight to achieve greater Queen mobility.

6. .... dxc3
7. Bxf7, Kxf7
8. Qd5, Ke8
9. Re1+, Be7
10. Rxe4, d6
11. Bg5, cxb2
12. Rae1!, Rf8
13. Bxe7, Nxe7
14. Qh5+ ....

If 14. Rxe7 Qxe7, 15. Rxe7 b1=Q mate.

14. .... Kd7

If 14....g6, then 5. Qxh7 Bf5, 16. Rxe7+ and White wins.

15. Nd4, c5
16. Qg4, Kc7
17. Rxe7+, Qxe7
18. Rxe7+, Kd8
19. Qg5!!, h6

If 19....b1=Q, then 20. Re1 dis chk Kc7, 21. Qe7+Kb6, 22. Rxb1+ with a mating attack.

20. Rxb7 dis chk

Black resigns.  He cannot avoid mate even if he captures the Queen.  If 20......hxg5, then 21. Nc6+ Ke8, 22. Re7 mate.

If after 20. Rxb7, Black moves Rf6, then 21. Nc6+ Ke8, 22. Re7+ Kf8, 23. Qxg7 mate.

A brilliant ending!  And Black has a pawn waiting for promotion.