Chess Board
[ECO code E25] Move Move Here
NIMZO-INDIAN DEF. - Sämisch Var.
(to) Keres / Botvinnik Variations

Black in the main advanced his QBP to QB4(c5) and attacked White's QP, inviting him to triple his QBPs!
White pushes his King's Bishop's Pawn out to KB3(f3) to support a direct 7.P-K4 bid. W-Alt.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	P-B3
 2. P-QB4  P-K3
 3. Kt-QB3 B-Kt5
 4. P-QR3  BxKt ch
 5. PxB    P-B4

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