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Track this line:
The position
What Modern Defense puts on the board
Material is level, with white to move.
White has central pawns on e4.
White can still castle either side; Black can still castle either side.
White’s plan
What White is trying to build
Use the centre, but keep it supported against …c5 and …e5.
Develop before committing to an all-in kingside pawn attack.
Black’s plan
How Black challenges it
Attack the broad centre from the flanks rather than accepting permanent space disadvantage.
Time …c5 or …e5 so the g7 bishop joins the game.
The idea
The tactical pattern to recognise
A pawn storm can expose both kings if the centre opens.
The long diagonal becomes tactical when d4 moves or disappears.
The mistake
What to check before committing
Overextending the centre without enough development.
Waiting too long to challenge White’s central pawns.
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Reference links and alternate move orders
Move orders
1.e4 g61.e4 g6 2.d4 Bg71.d4 g6 2.c4 Bg7 3.Nc3 d6