1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8e7 The Queen's Gambit Declined is the most classic of all variations that start with the queen's pawn. It has stood the test of time and has been played by virtually every great chess player in history for about two centuries. Yes, sometimes it's not the most exciting defense, and if you need to win with Black, maybe it's not the most recommended—but we all have flaws, right $2 At the end of the day, there's no better defense than this. 5. c1f4  5... e8g8  6. e2e3  6... c7c5  7. d4c5  7... e7c5 