[Event "New York"]
[Site "?"]
[Date "1924.??.??"]
[Round "?"]
[White "Marshall,F"]
[Black "Janowski,D"]
[Result "1-0"]
[Annotator "Lopez "Battle Royale""]
[ECO "D20"]
[PlyCount "107"]

1. d4 d5 2. c4 { The Queen's Gambit. White offers to gambit a pawn, but this isn't a true gambit. Should Black accept the offered pawn, White can win it back with no difficulty. } 2... dxc4 { Janowski surprises all by accepting the offered pawn. } 3. Nc3 { This is the real reason for 2.c4. If the Knight was advanced first, the c-pawn would be trapped behind the Knight and unable to move. } 3... e5 { Janowski now offers a gambit pawn of his own. This move was made possible by White's failure to play 3.Nf3 (which would have guarded the e5-square). } 4. e3 { This has the dual purpose of defending the d4-pawn and attacking the c4-pawn. } 4... exd4 5. exd4 { Marshall now has an isolated d-pawn. This is a common strategic element in chess. Standard procedure for Black at this point would be to try to plant a piece (usually a Knight) on the square in front of the pawn (d5). } 5... Nc6 6. Nf3 Nf6 7. Bxc4 { As anticipated, White wins back the gambit pawn with no trouble. This Bishop's presence (in combination with the c3-Knight) is also going to make it difficult for Black to blockade the d-pawn by putting a Knight on d5. } 7... Bd6 8. O-O O-O 9. Bg5 { Marshall pins the Knight to the Queen in preparation for his next move. } 9... Bg4 10. Nd5 { The move ...Nxd5 is impossible because of the pin. } 10... Be7 11. Nxe7+ Qxe7 12. Bd5 { Again, the f6-Knight is prevented by the pin from capturing on d5. } 12... Rfd8 13. Re1 Qd6 14. Bxc6 bxc6 { Janowski now has to contend with the strategic weakness of the doubled c-pawns. } 15. h3 Bh5 16. Rc1 { Marshall prepares to attack the c-pawns. His idea is to create a battery on the c-file to bear down on the doubled pawns. } 16... Rab8 { Janowski attacks the b-pawn. While this move seems all right, he's missed the fact that White's pieces are now in position to cause him a lot of grief. He should have tried trading off a pair of Rooks with ...Re8, limiting White's offensive power. } 17. g4 Bg6 18. Ne5 c5 19. dxc5 Qa6 { Notice that White's last three moves have been threats. This has allowed Janowski no time to capture the b2-pawn as he'd intended. } 20. Qf3 { Marshall had to move the Queen (it was under attack by the d8-Rook). But why didn't the Queen flee to e2 where it could defend the b2-pawn? } ( 20. Qe2 { This wouldn't have mattered -- Black still would win a pawn and create Queenside threats. } 20... Qxa2 ) 20... Rxb2 21. Nc6 { Now you see the point of Qf3. } 21... Be4 { This looks like a blunder, but Janowski really has no choice. Take a look at the variation to see why. } ( 21... Rf8 { Any other Rook moves leads to the same result. } 22. Bxf6 gxf6 23. Qxf6 { And now White has the unstoppable threat of Ne7+ followed by Qxa6. } ) 22. Ne7+ Kh8 23. Rxe4 Nxe4 24. Qxe4 { Now that the smoke has cleared, we can see that Marshall has a small material advantage: two minor pieces for a Rook. } 24... Re2 25. Be3 Rxa2 26. Nc6 Rg8 27. Qd5 Ra4 28. Ne5 { Of course, the threat is a smothered mate with Nxf7#. } 28... h6 { Janowski has to creat an escape hatch for the King. } 29. Qxf7 Qf6 30. Qxf6 gxf6 31. Nf7+ Kh7 32. Nxh6 Rd8 33. Nf5 { In just a few moves, Marshall has managed to destroy the Black King's fortress. } 33... a5 { Janowski goes ahead and advances the pawn before c5-c6 forces it. } 34. c6 Re4 35. Rc5 Re5 { Slickly preventing Rxa5. } 36. Rc4 ( 36. Rxe5 fxe5 { This is possible, but why give Black any chances by letting him swerve the pawn around the f5-Knight? It will also be harder to pick off the scattered Black pawns with just a Bishop and Knight. } ) 36... Re6 37. Bf4 Rc8 38. Rd4 Kh8 39. Rd7 { See how much easier it is to set up an attack on a pawn by using a Bishop and Rook instead of a Bishop and Knight? } 39... a4 { Janowski is dreaming if he thinks he'll be able to promote this pawn without a struggle. } 40. Ne7 $1 { Marshall discovers an amazing threat! } 40... Rxe7 { Forced. The threat is 41.Ng6+ Kg8 42.Bh6 and 43.Rg7#. } 41. Rxe7 a3 42. Bh6 a2 43. Bg7+ Kh7 44. Bxf6+ Kg6 45. Bc3 Rb8 46. Rxc7 Rb3 47. Rg7+ Kh6 48. g5+ Kh5 49. Bf6 Ra3 50. c7 a1=Q+ { Swapping the pawn for White's Bishop. } 51. Bxa1 Rxa1+ 52. Kg2 Rc1 { Janowski's chances are exactly nil. He will be unable to stop all four White pawns. } 53. f4 Rc3 54. Kf2 { Janowski resigns himself to the fact that he can't stop both the c- and f-pawns and hangs it up. } 1-0