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Chess openings

Opening family

Center Game Lines and Variations

The Center Game family contains 18 named lines in this opening book, spanning ECO C20 to C22. Use this page as the map, then open individual lines for exact move orders and diagrams.

Named lines
18
ECO coverage
C20, C21, C22
ECO volume
C (open games after 1.e4 e5 plus the French Defense)
Shortest line
C20 Center Game: 1. e4 e5 2. d4

How to study this family

White

White should use the move order as a checkpoint: finish development, identify the central break, and compare the continuations below before memorizing moves.

Black

Black should ask what White is threatening in the center, then choose development moves that prepare a clean pawn break or a useful exchange.

Start with the shortest line, then branch to the variations that change the pawn structure or tactical target. Memorizing every branch before understanding the family plan is usually wasted work.

Main named lines

Deep theory branches

Start with the root lineDrill this family