Chess Board
[ECO code D02] Do not scroll the screen..! Move Move Move Here
QUEEN'S PAWN GAME
(to) Catalan Opening, London Variation
White fianchettoed his KB and developed his KKt to KB3(f3), doubling both his QP support and his K5(e5) control, and enabled castling.
Black, having developed his QB, pushes his KPawn out behind it for triple QP support and frees his KB.
	White   Black
 1.	P-Q4    P-Q4	    
 2.	Kt-KB3  Kt-KB3
 3.	P-KKt3  B-B4
 4.	B-Kt2   P-K3
WHITE to Move or Undo or Jump or Clear
 
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When castling always touch the king first
Under FIDE laws of chess, if a player deliberately touches a rook and then his king, he is not allowed to castle on that side on that move but must still move the rook if legally possible.

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