A41 Flank openings

Modern Defense

Modern Defense is an ECO A41 opening in the flank openings family. Study the line, review related variations, and practice the move order.

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Learn this opening

A41 study line

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Step through the line, then test it from memory.

The Modern Defense reaches a named position after 3 moves: 1. d4 g6 2. c4 Bg7 3. Nc3 d6

In practical games, this line matters because the early pawn and piece choices decide which middlegame plans are natural. Use the board above to learn the move order, then run the drill without hints before adding the opening to your regular queue.

If this exact branch does not appear in your games, study the related variations below. Openings often transpose, and recognizing the family pattern is more useful than memorizing one narrow sequence.