Classical: 7.Nc3 b5 is variation 2 of 6 in the Queen's Gambit Accepted course, a intermediate opening course for Black (ECO D28). It runs 22 moves and begins 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 …. White keeps the queens on with 7.Nc3. Black gains space with ...b5 and puts the bishop on b7. Then Black develops the knight to d7 and chooses when to take on d4. 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. Nf3 – White develops first.
3... Nf6 – Black develops and stops e4.
4. e3 – White opens the f1 bishop.
4... e6 – Black opens the f8 bishop.
5. Bxc4 – White wins the pawn back.
5... c5 – Black hits d4 at once.
6. O-O – White castles.
6... a6 – Black prepares the b-pawn push.
7. Nc3 – White develops and supports a push to e4 later.
7... b5 – Black gains space with tempo on the bishop.
8. Be2 – The bishop steps back to a safe square.
8... Bb7 – The bishop takes the long diagonal and watches e4 and f3.
The lesson goes on for 6 more moves, each with its explanation.
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