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 0430 White to move FEN: r1b2rk1/ 2p2ppp/ p7/ 1p6/ 3P3q/ 1BP3bP/ PP3QP1/ RNB1R1K1 w - - 0 1 Short Algebraic Problem Setup: White: Kg1, Qf2, Ra1, Re1, Bb3, Bc1, Nb1, Pa2, Pb2, Pc3, Pd4, Pg2, Ph3 Black: Kg8, Qh4, Ra8, Rf8, Bc8, Bg3, Pa6, Pb5, Pc7, Pf7, Pg7, Ph7