[Event "Groningen"] [Site "?"] [Round "0"] [White "Smyslov"] [Black "Steiner"] [Result "1-0"] [ECO "A51"] [Opening "Budapest: Fajarowicz, 4.Nf3"] 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 { 3...Ng4 4.Nf3 Nc6 5.Bf4 Bb4+ 6.Nbd2 Qe7 allows Black to regain his pawn.} 4. Nf3 Bb4+ 5. Bd2 Nxd2 6. Nbxd2 Nc6 7. a3 {White now holds the initiative.} 7... Bxd2+ 8. Qxd2 Qe7 9. Qc3 {The pawn at e5 is now secure.} 9... O-O 10. Rd1 Re8 11. Rd5 b6 {Black has no way to put further pressure at e5.} 12. e3 Bb7 13. Be2 Rad8 {13...Na5 14.b4 with similiar play to the actual game.} 14. O-O Nb8 15. Rc1 {A very deep exchange sacrifice. The idea is that White's pawn and piece will be more active that Black's rook.} 15... Bxd5 16. cxd5 d6 {16...c5 Trying to keep the c-file closed to White's pieces would be met with 17.Bb5 a6 18.d6 Qe6 19.Bc4 Qf5 20.Bd5 Nc6 21.Bxc6 dxc6 22.h3 when White has a protected passed d-pawn.} 17. Bb5 {This drives the Black rook to a less active square.} 17... Rf8 18. e4 a6 19. Bd3 dxe5 {19...Rfe8 20.e6 fxe6 21.dxe6 c5 22.Bc4 would leave White with a strong passed e-pawn.} 20. Nxe5 Rd6 21. Nc4 Rh6 22. Ne3 Qh4 { 22...Rc8 White now regains his lost exchange by tactical means.} 23. Qxc7 Rf6 24. g3 1-0