Problem Display
PID: 257386 (8/k1K5/2p5/1p6/n7/8/8/Q6b w - - 0 1)

Uppstrom, Rolf

Springaren, 1998

8/k1K5/2p5/1p6/n7/8/8/Q6b

#3

2 + 5


6490 yacpdb 2022

SOLUTION


  • SOUND
  • Sets
    • 1...b4
      • 2.Qxa4#
    • 1...c5
      • 2.Qxh1
        • threat
          • 3.Qb7#
        • 2...Ka6
          • 3.Qa8#
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qb8+
          • 2...Ka6
            • 3.Qa8#
      • 1...Sb2
        • 2.Qxb2
          • threat
            • 3.Qa1#
            • 3.Qa3#
            • 3.Qa2#
          • 2...Ka6
            • 3.Qa1#
            • 3.Qa3#
            • 3.Qa2#
          • 2...Ka8
            • 3.Qa1#
            • 3.Qa3#
            • 3.Qa2#
        • 2.Qb8+
          • 2...Ka6
            • 3.Qb6#
            • 3.Qa8#
      • 1...Sc3
        • 2.Qxc3
          • threat
            • 3.Qa1#
            • 3.Qa5#
            • 3.Qa3#
          • 2...Ka6
            • 3.Qa1#
            • 3.Qa3#
          • 2...Ka8
            • 3.Qa1#
            • 3.Qa5#
            • 3.Qa3#
        • 2.Qb8+
          • 2...Ka6
            • 3.Qb6#
            • 3.Qa8#
      • 1...Sc5
        • 2.Qb8+
          • 2...Ka6
            • 3.Qb6#
            • 3.Qa8#
      • 1...Sb6
        • 2.Qb8+
          • 2...Ka6
            • 3.Qxb6#
      • 1...b4
        • 2.Qa1
          • threat
            • 3.Qxa4#
          • 2...Ka6
            • 3.Qxa4#
          • 2...Ka8
            • 3.Qxa4#
      • 1...c5
        • 2.Qxh1
          • threat
            • 3.Qb7#
          • 2...Ka6
            • 3.Qa8#

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).