Hello all, Doctor Z is ready to operate. It's another sacrifice. The white rook at g1 and black pawn at h7 trap the black king. Black's own pieces box in the queen. White just needs a check to checkmate. My solution: 1. Qxf6+ (White makes a queen sacrifice.) Nxf6 (forced move) 2. Bxf6++ (Without a piece to block the check the black king is checkmated.) Edward In a message dated 7/9/2012 10:07:32 A.M. Eastern Daylight Time, rrdinger@xxxxxxxxxx writes: Good Morning Puzzlers, Another checkmate problem. This problem is from Mario Lang's puzzle web page at: _http://delysid.org/chess/epd.cgi_ () and is reported to be from Fred Reinfield's book "1001 Brilliant Ways to Checkmate" . This problem can also be obtained from G. Ossimitz's chess page at: _http://wwwu.uni-klu.ac.at/gossimit/c/chess.htm_ (http://wwwu.uni-klu.ac.at/gossimit/c/chess.htm) Problem BWTC002 White to move FEN Problem Setup: 2r1nr1k/ pp1q1p1p/ 3bpp2/ 5P2/ 1P1Q4/ P3P3/ 1B3P1P/ R3K1R1 w - - 0 1 Short Algebraic Problem Setup: White: Ke1, Qd4, Ra1, Rg1, Bb2, Pa3, Pb4, Pe3, Pf2, Pf5, Ph2 Black: Kh8, Qd7, Rc8, Rf8, Bd6, Ne8, Pa7, Pb7, Pe6, Pf6, Pf7, Ph7