Problem Display
PID: 236609 (Q7/3N4/p5K1/3N4/r3p3/p2k1p2/R7/8 w - - 0 1)

Jacobs, Jurgen

Freie Presse, 1969

Q7/3N4/p5K1/3N4/r3p3/p2k1p2/R7/8

#3

5 + 6


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qc6+
        • 2...Kb3
          • 3.Qc2#
        • 2...Kd3
          • 3.Qc3#
        • 2...Kd4
          • 3.Rd2#
    • 1...Rd4
      • 2.Se5#
  • Tries
    • 1.Rd2+?
      • 1...Kc4
        • 2.Qc6+
          • 2...Kb3
            • 3.Qc2#
            • 3.Qc3#
        • 2.Qc8+
          • 2...Kb3
            • 3.Qc2#
            • 3.Qc3#
          • 2...Kb5
            • 3.Qc5#
      • 1...Kxd2!
    • 1.Qc6?
      • threat
        • 2.Qc3#
      • 1...e3
        • 2.Qxa4
          • threat
            • 3.Sc5#
            • 3.Se5#
        • 2.Qc3+
          • 2...Ke4
            • 3.S7f6#
      • 1...Rc4!
    • 1.Qxa6+?
      • 1...Rc4
        • 2.Qxa3+
          • 2...Kd4
            • 3.Rd2#
          • 2...Rc3
            • 3.Qxc3#
      • 1...Rxa6+!
    • 1.Qa7?
      • threat
        • 2.Se5#
      • 1...Kc4
        • 2.Qc5+
          • 2...Kb3
            • 3.Qc2#
          • 2...Kd3
            • 3.Sf4#
            • 3.Se5#
            • 3.Qc3#
      • 1...e3!
    • 1.Qc8?
      • threat
        • 2.Qc3#
      • 1...e3
        • 2.Qc3+
          • 2...Ke4
            • 3.S7f6#
      • 1...Rc4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qc3#
      • 1...Kc4
        • 2.Rc2+
          • 2...Kb3
            • 3.Qc3#
          • 2...Kd3
            • 3.Qc3#
          • 2...Kb5
            • 3.Rc5#
          • 2...Kxd5
            • 3.Qe5#
      • 1...e3
        • 2.Qc3+
          • 2...Ke4
            • 3.S7f6#
      • 1...Rc4
        • 2.Qd4+
          • 2...Kxd4
            • 3.Rd2#
          • 2...Rxd4
            • 3.Se5#

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).