Central Variation: 4.Nf3 exd4 is variation 4 of 6 in the Queen's Gambit Accepted course, a intermediate opening course for Black (ECO D20). It runs 24 moves and begins 1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 …. White develops with 4.Nf3 and offers a gambit. Black takes on d4 and checks with the bishop. White gets active pieces, but Black can trade knights on d4 and castle into a safe position. In the lesson every move is explained on a board and then drilled; it is free.
Move by move
1. d4 – White takes the centre.
1... d5 – Black claims the centre too.
2. c4 – White offers the c-pawn.
2... dxc4 – Black takes the pawn.
3. e4 – White builds a big centre.
3... e5 – Black hits the centre at once.
4. Nf3 – White develops and attacks e5. This is the best move.
4... exd4 – Black takes. The d4 pawn now stands in front of White's queen.
5. Bxc4 – White wins back the c4 pawn. The bishop aims at f7.
5... Bb4+ – Black checks and develops at the same time.
6. Nbd2 – White blocks the check with the knight. It can go to b3 and win back d4.
6... Nc6 – Black develops and protects the d4 pawn.
7. O-O – White castles.
7... Nf6 – Black develops and attacks the e4 pawn.
8. e5 – White chases the knight away.
8... Nd5 – The knight jumps to the strong d5 square.
The lesson goes on for 8 more moves, each with its explanation.
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