[Event "Munich"] [Site "?"] [Round "0"] [White "Lilienthal"] [Black "Marshall"] [Result "1-0"] [ECO "E38"] [Opening "Nimzo-Indian: Classical, 4...c5"] {The doubled pawn as a weakening of the castled position} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Nc6 6. Nf3 O-O 7. Bg5 Qa5 8. Bxf6 gxf6 9. e3 Bxc5 10. Be2 d5 11. O-O dxc4 12. Bxc4 Be7 13. Rad1 a6 14. Nd4 $1 Nxd4 15. exd4 $1 b5 16. Bb3 b4 17. Ne2 Bb7 18. d5 $3 {The isolated d-pawn is offered in order to get possession of valuable squares from which the White pieces can menace the Black king} 18... Rac8 (18... Bxd5 19. Bxd5 exd5 20. Nf4 Rad8 21. Qf5) 19. Qe4 Rfd8 (19... Kh8 20. Bc2 f5 21. Qe5+ Kg8 22. Rd3) (19... f5 20. Qe5 Qc7 21. d6 Qc6 22. Bd5 $1) 20. Qg4+ Kh8 21. Qh5 Kg8 22. Rd3 { Against this incursion of the Rook there is no antidote} 22... Bd6 23. Rh3 Kf8 24. Qh6+ Ke7 25. dxe6 Rg8 (25... fxe6 26. Qg7+) 26. Ng3 Bxg3 27. hxg3 Bd5 28. exf7 Bxb3 (28... Bxf7 29. Re1+) 29. fxg8=Q Bxg8 30. Qg7+ 1-0