English Defense: Hartlaub Gambit Declined

A40 Flank openings 9 moves

1.c4 e6 2.d4 b6 3.Nc3 Bb7 4.e4 f5 5.d5

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The English Defense: Hartlaub Gambit Declined is a chess opening classified under ECO code A40 (Flank openings). It is a variation of the English Defense family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.