Chess Board
[ECO code C41] Do not scroll the screen..! Move Move Move Here
PHILIDOR'S DEF. - "Exchange" Var.
Antoshin Variation

White developed his king's bishop to QB4(c4), targeting Black's weak KBP and enabling castling.
Black castles short (ie. K-side), bringing his King's Rook into play defending his KBP.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	B-QB4  0-0
 2. Kt-KB3 P-Q3
 3. P-Q4   PxP
 4. KtxP   Kt-KB3
 5. Kt-QB3 B-K2

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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