7.Nd5: White jumps in early is variation 3 of 6 in the Sicilian Sveshnikov course, a advanced opening course for Black (ECO B33). It runs 26 moves and begins 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 …. White plays 7.Nd5 before Bg5. Black trades knights at once and drops the c6 knight back to b8. White gets space with c4, and Black plays on the kingside with ...f5. In the lesson every move is explained on a board and then drilled; it is free.
Move by move
1. e4 – White takes the centre.
1... c5 – The Sicilian. Black fights for d4 from the side.
2. Nf3 – White develops and prepares to open the centre.
2... Nc6 – Black develops and watches d4.
3. d4 – White opens the centre.
3... cxd4 – Black takes and gets the half-open c-file.
4. Nxd4 – White takes back with the knight.
4... Nf6 – Black develops and attacks e4.
5. Nc3 – White defends e4.
5... e5 – The Sveshnikov. Black kicks the knight and takes space.
6. Ndb5 – The knight eyes the weak d6 square.
6... d6 – Black covers d6 at once.
7. Nd5 – White jumps into d5 before playing Bg5.
7... Nxd5 – Black takes the knight at once.
8. exd5 – White takes back with the pawn and attacks the c6 knight.
8... Nb8 – The knight goes back to b8. From there it can come out to d7.
The lesson goes on for 10 more moves, each with its explanation.
chessGM