Problem Display
PID: 8361 (8/8/1P6/8/3p4/2pR4/Qpp2K2/B1k5 w - - 0 1)

van Westrum, Louis Ceril Schade

Probleemblad, 1974

8/8/1P6/8/3p4/2pR4/Qpp2K2/B1k5

#3

5 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...bxa1Q
      • 2.Qxa1#
    • 1...bxa1S
      • 2.Qxa1#
    • 1...bxa1B
      • 2.Qxa1#
    • 1...bxa1R
      • 2.Qxa1#
    • 1...b1Q
      • 2.Qa8
        • threat
          • 3.Qh1#
        • 2...Qxa1
          • 3.Qxa1#
    • 1...b1S
      • 2.Qe6
        • threat
          • 3.Qe1#
    • 1...b1B
      • 2.Qa3#
    • 1...b1R
      • 2.Qa8
        • threat
          • 3.Qh1#
        • 2...Rxa1
          • 3.Qxa1#
  • Tries
    • 1.Ke2?
      • 1...b1Q
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Qxa1
            • 3.Qxa1#
      • 1...b1R
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Rxa1
            • 3.Qxa1#
      • 1...b1S!
    • 1.Rxd4?
      • 1...b1S
        • 2.Qe6
          • threat
            • 3.Qe1#
      • 1...b1R
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Rxa1
            • 3.Qxa1#
      • 1...b1Q!
    • 1.Qa4?
      • 1...b1Q
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Qxa1
            • 3.Qxa1#
      • 1...b1S
        • 2.Qe8
          • threat
            • 3.Qe1#
      • 1...b1R
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Rxa1
            • 3.Qxa1#
      • 1...Kb1!
    • 1.Qa5?
      • 1...b1S
        • 2.Qe5
          • threat
            • 3.Qe1#
      • 1...Kb1!
    • 1.Qa7?
      • 1...b1Q
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Qxa1
            • 3.Qxa1#
      • 1...b1S
        • 2.Qe7
          • threat
            • 3.Qe1#
      • 1...b1R
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Rxa1
            • 3.Qxa1#
      • 1...Kb1!
    • 1.Qa8?
      • threat
        • 2.Qh1#
      • 1...bxa1Q
        • 2.Qxa1#
      • 1...bxa1S
        • 2.Qxa1#
      • 1...bxa1B
        • 2.Qxa1#
      • 1...bxa1R
        • 2.Qxa1#
      • 1...Kb1!
  • Keys
    • 1.Kg3!
      • 1...b1Q
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Qxa1
            • 3.Qxa1#
      • 1...b1S
        • 2.Qe6
          • threat
            • 3.Qe1#
      • 1...b1R
        • 2.Qa8
          • threat
            • 3.Qh1#
          • 2...Rxa1
            • 3.Qxa1#

FEATURES


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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).