Caro-Kann Fantasy: the ...Qb6 Battery

Against the Fantasy (3.f3), 3...Qb6 hits b2 and d4 together. After 4.Nd2 e5, the natural grab 5.dxe5?? runs into 5...Bc5, d4 has vanished, f2 is pinned, and the g1 knight is stuck. Note it needs 4.Nd2: against 4.Nc3 the same plan does not work.

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