Chess Board
[ECO code E41 > 42] Move Move Move Here Move Here
NIMZO-INDIAN DEF. - Rubinstein System
(to) Rubinstein / Hübner Variations

White's KP push out to K3(e3) freed his KB and his queen's K-side and enabled KKt-K2 if desired.
Black advances his QBPawn enabling 5..Kt-QB3 behind, challenging White's QP and delaying ..P-Q4 until (usually better) after a White B-Q3. B-Alt.
	White	Black
 1.	P-Q4	Kt-KB3
 2.	P-QB4	P-K3
 3.	Kt-QB3	B-Kt5
 4.	P-K3	P-B4

WHITE to Move or Undo or Jump or Clear
Do not scroll the screen...!  
You can do better than that! Try another move!!

- press your browser "back" button to see the board again -
(ignore if you scrolled to here)