Chess Board
[ECO code E23]
NIMZO-INDIAN DEF. - Spielmann Var.
Carlsbad Variation
White pushes his KPawn out to K3(e3), shields his king's "weak" KBP and frees his KB for use/support.
Black's Bishop on QKt5(b4) removes White's doubled QBPawn on QB4(c5) and restores parity.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	Kt-B3  Kt-K5
 2. P-QB4  P-K3	     7.	B-Q2   KtxB
 3. Kt-QB3 B-Kt5     8.	KtxKt  P-B4
 4. Q-Kt3  P-B4	     9.	P-K3   BxP
 5. PxP    Kt-B3
Example ends: Undo or Jump or Clear