Kan: 5.Bd3 Bc5 is variation 4 of 6 in the Sicilian Taimanov and Kan course, a advanced opening course for Black (ECO B42). It runs 24 moves and begins 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 …. White guards e4 with the bishop. Black hits the d4 knight with ...Bc5, and the bishop settles on a7. The g8 knight goes to e7, Black castles, and ...d5 frees the game. 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 d4.
2... e6 – Black frees the f8 bishop and keeps an eye on d5.
3. d4 – White opens the centre.
3... cxd4 – Black trades a side pawn for a centre pawn.
4. Nxd4 – The knight takes back and sits in the centre.
4... a6 – The Kan. Black keeps the knights off b5 and every piece stays flexible.
5. Bd3 – White guards e4 with the bishop and keeps c4 free for a pawn.
5... Bc5 – Black develops with an attack on the d4 knight.
6. Nb3 – The knight retreats and attacks the bishop.
6... Ba7 – The bishop keeps the long diagonal toward f2.
7. O-O – White castles.
7... Ne7 – The knight goes to e7. Now a queen raid on g7 gains nothing, and the knight can go to c6 later.
8. Qe2 – White guards e4 again and connects the rooks.
8... O-O – Black castles.
The lesson goes on for 8 more moves, each with its explanation.
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