Good Morning Puzzlers, Another checkmate problem and the castled king. This problem is from Mario Lang's puzzle web page at: http://delysid.org/chess/epd.cgi and is from Fred Reinfield's book "1001 Brilliant Ways to Checkmate" . Problem BWTC 0429 White to move FEN: 2r2r2/ 1pqb1p1k/ p3pPpp/ 3pR3/ 6PP/ P2BQ3/ 1PP2P2/ R5K1 w - - 0 1 Short Algebraic Problem Setup: White: Kg1, Qe3, Ra1, Re5, Bd3, Pa3, Pb2, Pc2, Pf2, Pf6, Pg4, Ph4 Black: Kh7, Qc7, Rc8, Rf8, Bd7, Pa6, Pb7, Pd5, Pe6, Pf7, Pg6, Ph6