Square One
    Opening Walkthrough
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    3
    2
    1a
    b
    c
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    g
    h
    Opening Coach

    Colle System

    D05You play white
    1/15
    Your move

    Stake the centre — the anchor the whole pyramid leans on. Everything else is built around this pawn.

    Your line15 to go

    Play the moves — your line builds here as you go.