London System

Play as White • Repeat until it's automatic

vs ...Qb6

Black's most challenging early reply: 4...Qb6 hits b2 and the d4 pawn simultaneously, forcing White to find an accurate response. The mainline 5.Nc3 Bd7 6.Na4 chases the queen and creates a sharp tactical battle around the queenside pawns.

LinesPractice Mode

You (White)

Your move - play White's next move

ProgressMove 1 of 8

Move Sequence

1.d4d5

2.Bf4c5

3.e3Nc6

4.Nf3Qb6

5.Nc3Bd7

6.Na4Qa5+

7.c3cxd4

8.b4

Current linevs ...Qb6

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Reps

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Streak

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Learned

Earn a tick by completing the line without a mistake. 3 ticks = learned.