Chess Board
[ECO code E02] Move Move Move Here
CATALAN OPENING
Open Variation

White's endangered QB4(c4) Queen to Q3(d3) maintains support for his QP ahead of 10.P-K4.
Black develops his King's Bishop to QKt5(b4), pins White's QKt and enables ..0-0, with equality.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	QxBP   B-B3
 2. P-QB4  P-K3	     7.	Kt-KB3 QKt-Q2
 3. P-KKt3 P-Q4	     8.	Kt-B3  Kt-Kt3
 4. B-Kt2  PxP	     9.	Q-Q3   B-Kt5
 5. Q-R4 ch B-Q2

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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