Problem Display
PID: 191877 (8/8/4pp1Q/8/1p4N1/2k5/R7/2K5 w - - 0 1)

Mortriner, Lucius

Pittsburgh Gazette-Times, 1915

8/8/4pp1Q/8/1p4N1/2k5/R7/2K5

#3

4 + 4


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Tries
    • 1.Rc2+?
      • 1...Kd4
        • 2.Qe3+
          • 2...Kd5
            • 3.Qd3#
        • 2.Qf4+
          • 2...Kd3
            • 3.Sf2#
            • 3.Qe3#
            • 3.Qc4#
          • 2...Kd5
            • 3.Se3#
            • 3.Sxf6#
      • 1...Kb3!
    • 1.Ra5?
      • threat
        • 2.Qe3+
          • 2...Kc4
            • 3.Rc5#
      • 1...Kb3
        • 2.Qe3+
          • 2...Kc4
            • 3.Rc5#
      • 1...Kd3
        • 2.Qe3+
          • 2...Kc4
            • 3.Rc5#
      • 1...Kd4
        • 2.Qe3+
          • 2...Kc4
            • 3.Rc5#
      • 1...b3
        • 2.Qd2+
          • 2...Kc4
            • 3.Se3#
      • 1...f5
        • 2.Qe3+
          • 2...Kc4
            • 3.Se5#
            • 3.Rc5#
      • 1...Kc4!
    • 1.Qd2+?
      • 1...Kb3
        • 2.Qc2#
      • 1...Kc4!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qc6+
          • 2...Kb3
            • 3.Qc2#
          • 2...Kd3
            • 3.Rd2#
          • 2...Kd4
            • 3.Rd2#
      • 1...Kb3
        • 2.Qc6
          • threat
            • 3.Qc2#
          • 2...Kxa2
            • 3.Qa4#
      • 1...Kd3
        • 2.Qc6
          • threat
            • 3.Rd2#
          • 2...Kd4
            • 3.Rd2#
      • 1...Kc4
        • 2.Qc6+
          • 2...Kb3
            • 3.Qc2#
          • 2...Kd3
            • 3.Rd2#
          • 2...Kd4
            • 3.Rd2#
      • 1...Kd4
        • 2.Qc6
          • threat
            • 3.Rd2#
          • 2...Kd3
            • 3.Rd2#
      • 1...b3
        • 2.Qc6+
          • 2...Kd3
            • 3.Rd2#
          • 2...Kb4
            • 3.Ra4#
          • 2...Kd4
            • 3.Rd2#

FEATURES


NOT CLASSIFIED


Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).