Queen's Gambit - Declined
White offers a wing pawn to gain center control. Black declines with ...e6, aiming for a solid but somewhat passive setup.
Line preview
42 moves in the full line
1.d2-d4
d7-d5
2.c2-c4
e7-e6
3.b1-c3
g8-f6
4.c4-d5
e6-d5
…and 34 more moves
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