- Introduction
- Deffner,R - Brueggemann,J [C68], NRW
- Lasker,Emanuel - Steinitz,W, Moscow, 1896
- Lasker,Emanuel - Tarrasch,S, Duesseldorf, 1908
- Lasker,Emanuel - Janowski,D, Paris, 1909
- Lasker - Capablanca, St.Petersburg, 1914
Introduction
You may know that after:1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6
...White cannot win a pawn with 5. Nxe5 because of 5....Qd4.
What you may not know is that White can play this line to win, because in some sense, he is already a pawn up!
Let me explain.
If you have an extra pawn, you should:
exchange off pieces, not pawns
create a passed pawn
advance the passed pawn and either:
- force your opponent to give up material to stop it queening, or
- force your way into the opponent's position to take material yourself (usually pawns)
With this in mind, let's look at the pawn formation after
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4
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But Black cannot do the same on the other side, unless White allows all the front pawns to come to a4,b4 and c4, when there is a trick with ...b3! e.g. axb3, c3! bxc3 and ...a3. As long as White avoids that trap, the passed pawn on the King's side should win.
This is what I mean by already being a pawn up. You have an extra pawn on the King's-side, and Black's extra Queen's-side pawn is useless.
Emanuel Lasker played this several times, and more recently, Bobby Fischer discovered that you could also play 5. O-O! with an awkward moment for Black, because now there really is a threat to the e5 pawn which is not easy to meet e.g. 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 exd4 7. Nxd4 c5 8. Nb3 Qxd1 9. Rxd1 and compared to Lasker's line, you are even further ahead in development. You do need to be prepared for other lines e.g. 5...Bg4.
I quote Lasker's most famous successes with this line below; just in case you think this is all ancient history, here is an example from the German Bundeslige from recent years.
White's plan, as ever, is to advance on the King's-side to get a passed pawn or entry for attack.
Deffner,R - Brueggemann,J [C68], NRW
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 8. O-O O-O-O 9. Nc3 Bd6 10. Re1 f6 11. f4
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Lasker,Emanuel - Steinitz,W, Moscow, 1896
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d4 exd4 7. Qxd4 Bd6 8. Be3 Ne7 9. Nd2 c5 10. Qd3 b5 11. Qe2 c4 12. Qh5+ g6 13. Qh6 Kf7 14. f4 Qf8 15. Qh4 Nc6 16. Nd5 f5 17. Qf6+ Kg8
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Lasker,Emanuel - Tarrasch,S, Duesseldorf, 1908
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 c5 8. Ne2 Bd7 9. b3 Bc6 10. f3 Be7 11. Bb2 Bf6 12. Bxf6 Nxf6 13. Nd2 O-O-O 14. O-O-O Rd7 15. Nf4 Re8 16. Nc4 b6 17. a4 a5 18. Rxd7 Nxd7 19. Rd1 Ne5 20. Nxe5 Rxe5 21. c4
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Lasker,Emanuel - Janowski,D, Paris, 1909
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Bg4 7. Nc3 Qxd4 8. Nxd4 O-O-O 9. Be3 Bb4 10. Nde2 Bxe2 11. Kxe2 Bxc3 12. bxc3
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Lasker - Capablanca, St.Petersburg, 1914
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd6 8. Nc3 Ne7 9. O-O O-O 10. f4 Re8 11. Nb3 f6
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