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+# Caro-Kann Defence
+
+    1. e4 c6
+
+White occupies the centre. Black prepares to challenge the centre.
+
+    2. d4 e5
+
+White further occupies the centre. Black challenges the centre.
+
+## Exchange Variation
+
+    3. dxe5 cxe5
+
+White trades off a central pawn for Black's flank pawn. Black should plan to
+establish a strong centre and prepare a minority attack on the Queen side,
+trying to win a pawn and get a favourable endgame.
+
+## Advance Variation, Botvinnik-Carls Variation
+
+    4. d5 c5
+
+Black attacks the weak d pawn in White's centre, forcing White to defend the
+d pawn or capture the c pawn, weakening White's centre.
+
+    5. c3 Nc6
+
+White defends the pawn with another pawn. Black increases pressure on the pawn.
+
+    5. dxc5 Nc6
+
+White captures the c pawn. Black attacks the remaining central pawn.