# Chess Opening Theory/1. e4/1...c5/2. Nf3/2...Nc6/3. d4/3...cxd4/4. Nxd4/4...Nf6/5. Nc3/5...d6

< Chess Opening Theory‎ | 1. e4‎ | 1...c5‎ | 2. Nf3‎ | 2...Nc6‎ | 3. d4‎ | 3...cxd4‎ | 4. Nxd4‎ | 4...Nf6‎ | 5. Nc3
Classical Sicilian
 a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6

# Classical Sicilian

### 5...d6

Black's move 5...d6 protects the recently developed knight from being attacked. A pawn move is thus in order, since both knights are developed to good squares, and the Bishop on c8 now has the option, but not the obligation, to develop to a good square once white makes their intentions known.

Of all the responses for white, Bg5 is perhaps the best, and should be expected from a strong opponent. It pins the king knight, prepares for queenside castling, and it is the prelude to the Richter-Rauzer Attack (named after Vsevolod Alfredovich Rauser[1]).

## Theory table

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6

6 7 8
Richter-Rauzer Bg5
e6
Qd2
a6
O-O-O
Bd7
+=
Sozin Bc4
e6
Be3
Be7
Qe2
O-O
=
Boleslavsky Be2
e5
Nb3
...
=
f3
e5
=
Be3
Ng4
=